bnx2x_main.c 319 KB

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  1. /* bnx2x_main.c: Broadcom Everest network driver.
  2. *
  3. * Copyright (c) 2007-2011 Broadcom Corporation
  4. *
  5. * This program is free software; you can redistribute it and/or modify
  6. * it under the terms of the GNU General Public License as published by
  7. * the Free Software Foundation.
  8. *
  9. * Maintained by: Eilon Greenstein <eilong@broadcom.com>
  10. * Written by: Eliezer Tamir
  11. * Based on code from Michael Chan's bnx2 driver
  12. * UDP CSUM errata workaround by Arik Gendelman
  13. * Slowpath and fastpath rework by Vladislav Zolotarov
  14. * Statistics and Link management by Yitchak Gertner
  15. *
  16. */
  17. #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  18. #include <linux/module.h>
  19. #include <linux/moduleparam.h>
  20. #include <linux/kernel.h>
  21. #include <linux/device.h> /* for dev_info() */
  22. #include <linux/timer.h>
  23. #include <linux/errno.h>
  24. #include <linux/ioport.h>
  25. #include <linux/slab.h>
  26. #include <linux/interrupt.h>
  27. #include <linux/pci.h>
  28. #include <linux/init.h>
  29. #include <linux/netdevice.h>
  30. #include <linux/etherdevice.h>
  31. #include <linux/skbuff.h>
  32. #include <linux/dma-mapping.h>
  33. #include <linux/bitops.h>
  34. #include <linux/irq.h>
  35. #include <linux/delay.h>
  36. #include <asm/byteorder.h>
  37. #include <linux/time.h>
  38. #include <linux/ethtool.h>
  39. #include <linux/mii.h>
  40. #include <linux/if.h>
  41. #include <linux/if_vlan.h>
  42. #include <net/ip.h>
  43. #include <net/ipv6.h>
  44. #include <net/tcp.h>
  45. #include <net/checksum.h>
  46. #include <net/ip6_checksum.h>
  47. #include <linux/workqueue.h>
  48. #include <linux/crc32.h>
  49. #include <linux/crc32c.h>
  50. #include <linux/prefetch.h>
  51. #include <linux/zlib.h>
  52. #include <linux/io.h>
  53. #include <linux/stringify.h>
  54. #include <linux/vmalloc.h>
  55. #include "bnx2x.h"
  56. #include "bnx2x_init.h"
  57. #include "bnx2x_init_ops.h"
  58. #include "bnx2x_cmn.h"
  59. #include "bnx2x_dcb.h"
  60. #include "bnx2x_sp.h"
  61. #include <linux/firmware.h>
  62. #include "bnx2x_fw_file_hdr.h"
  63. /* FW files */
  64. #define FW_FILE_VERSION \
  65. __stringify(BCM_5710_FW_MAJOR_VERSION) "." \
  66. __stringify(BCM_5710_FW_MINOR_VERSION) "." \
  67. __stringify(BCM_5710_FW_REVISION_VERSION) "." \
  68. __stringify(BCM_5710_FW_ENGINEERING_VERSION)
  69. #define FW_FILE_NAME_E1 "bnx2x/bnx2x-e1-" FW_FILE_VERSION ".fw"
  70. #define FW_FILE_NAME_E1H "bnx2x/bnx2x-e1h-" FW_FILE_VERSION ".fw"
  71. #define FW_FILE_NAME_E2 "bnx2x/bnx2x-e2-" FW_FILE_VERSION ".fw"
  72. /* Time in jiffies before concluding the transmitter is hung */
  73. #define TX_TIMEOUT (5*HZ)
  74. static char version[] __devinitdata =
  75. "Broadcom NetXtreme II 5771x/578xx 10/20-Gigabit Ethernet Driver "
  76. DRV_MODULE_NAME " " DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
  77. MODULE_AUTHOR("Eliezer Tamir");
  78. MODULE_DESCRIPTION("Broadcom NetXtreme II "
  79. "BCM57710/57711/57711E/"
  80. "57712/57712_MF/57800/57800_MF/57810/57810_MF/"
  81. "57840/57840_MF Driver");
  82. MODULE_LICENSE("GPL");
  83. MODULE_VERSION(DRV_MODULE_VERSION);
  84. MODULE_FIRMWARE(FW_FILE_NAME_E1);
  85. MODULE_FIRMWARE(FW_FILE_NAME_E1H);
  86. MODULE_FIRMWARE(FW_FILE_NAME_E2);
  87. static int multi_mode = 1;
  88. module_param(multi_mode, int, 0);
  89. MODULE_PARM_DESC(multi_mode, " Multi queue mode "
  90. "(0 Disable; 1 Enable (default))");
  91. int num_queues;
  92. module_param(num_queues, int, 0);
  93. MODULE_PARM_DESC(num_queues, " Number of queues for multi_mode=1"
  94. " (default is as a number of CPUs)");
  95. static int disable_tpa;
  96. module_param(disable_tpa, int, 0);
  97. MODULE_PARM_DESC(disable_tpa, " Disable the TPA (LRO) feature");
  98. #define INT_MODE_INTx 1
  99. #define INT_MODE_MSI 2
  100. static int int_mode;
  101. module_param(int_mode, int, 0);
  102. MODULE_PARM_DESC(int_mode, " Force interrupt mode other than MSI-X "
  103. "(1 INT#x; 2 MSI)");
  104. static int dropless_fc;
  105. module_param(dropless_fc, int, 0);
  106. MODULE_PARM_DESC(dropless_fc, " Pause on exhausted host ring");
  107. static int poll;
  108. module_param(poll, int, 0);
  109. MODULE_PARM_DESC(poll, " Use polling (for debug)");
  110. static int mrrs = -1;
  111. module_param(mrrs, int, 0);
  112. MODULE_PARM_DESC(mrrs, " Force Max Read Req Size (0..3) (for debug)");
  113. static int debug;
  114. module_param(debug, int, 0);
  115. MODULE_PARM_DESC(debug, " Default debug msglevel");
  116. struct workqueue_struct *bnx2x_wq;
  117. enum bnx2x_board_type {
  118. BCM57710 = 0,
  119. BCM57711,
  120. BCM57711E,
  121. BCM57712,
  122. BCM57712_MF,
  123. BCM57800,
  124. BCM57800_MF,
  125. BCM57810,
  126. BCM57810_MF,
  127. BCM57840,
  128. BCM57840_MF
  129. };
  130. /* indexed by board_type, above */
  131. static struct {
  132. char *name;
  133. } board_info[] __devinitdata = {
  134. { "Broadcom NetXtreme II BCM57710 10 Gigabit PCIe [Everest]" },
  135. { "Broadcom NetXtreme II BCM57711 10 Gigabit PCIe" },
  136. { "Broadcom NetXtreme II BCM57711E 10 Gigabit PCIe" },
  137. { "Broadcom NetXtreme II BCM57712 10 Gigabit Ethernet" },
  138. { "Broadcom NetXtreme II BCM57712 10 Gigabit Ethernet Multi Function" },
  139. { "Broadcom NetXtreme II BCM57800 10 Gigabit Ethernet" },
  140. { "Broadcom NetXtreme II BCM57800 10 Gigabit Ethernet Multi Function" },
  141. { "Broadcom NetXtreme II BCM57810 10 Gigabit Ethernet" },
  142. { "Broadcom NetXtreme II BCM57810 10 Gigabit Ethernet Multi Function" },
  143. { "Broadcom NetXtreme II BCM57840 10/20 Gigabit Ethernet" },
  144. { "Broadcom NetXtreme II BCM57840 10/20 Gigabit "
  145. "Ethernet Multi Function"}
  146. };
  147. #ifndef PCI_DEVICE_ID_NX2_57710
  148. #define PCI_DEVICE_ID_NX2_57710 CHIP_NUM_57710
  149. #endif
  150. #ifndef PCI_DEVICE_ID_NX2_57711
  151. #define PCI_DEVICE_ID_NX2_57711 CHIP_NUM_57711
  152. #endif
  153. #ifndef PCI_DEVICE_ID_NX2_57711E
  154. #define PCI_DEVICE_ID_NX2_57711E CHIP_NUM_57711E
  155. #endif
  156. #ifndef PCI_DEVICE_ID_NX2_57712
  157. #define PCI_DEVICE_ID_NX2_57712 CHIP_NUM_57712
  158. #endif
  159. #ifndef PCI_DEVICE_ID_NX2_57712_MF
  160. #define PCI_DEVICE_ID_NX2_57712_MF CHIP_NUM_57712_MF
  161. #endif
  162. #ifndef PCI_DEVICE_ID_NX2_57800
  163. #define PCI_DEVICE_ID_NX2_57800 CHIP_NUM_57800
  164. #endif
  165. #ifndef PCI_DEVICE_ID_NX2_57800_MF
  166. #define PCI_DEVICE_ID_NX2_57800_MF CHIP_NUM_57800_MF
  167. #endif
  168. #ifndef PCI_DEVICE_ID_NX2_57810
  169. #define PCI_DEVICE_ID_NX2_57810 CHIP_NUM_57810
  170. #endif
  171. #ifndef PCI_DEVICE_ID_NX2_57810_MF
  172. #define PCI_DEVICE_ID_NX2_57810_MF CHIP_NUM_57810_MF
  173. #endif
  174. #ifndef PCI_DEVICE_ID_NX2_57840
  175. #define PCI_DEVICE_ID_NX2_57840 CHIP_NUM_57840
  176. #endif
  177. #ifndef PCI_DEVICE_ID_NX2_57840_MF
  178. #define PCI_DEVICE_ID_NX2_57840_MF CHIP_NUM_57840_MF
  179. #endif
  180. static DEFINE_PCI_DEVICE_TABLE(bnx2x_pci_tbl) = {
  181. { PCI_VDEVICE(BROADCOM, PCI_DEVICE_ID_NX2_57710), BCM57710 },
  182. { PCI_VDEVICE(BROADCOM, PCI_DEVICE_ID_NX2_57711), BCM57711 },
  183. { PCI_VDEVICE(BROADCOM, PCI_DEVICE_ID_NX2_57711E), BCM57711E },
  184. { PCI_VDEVICE(BROADCOM, PCI_DEVICE_ID_NX2_57712), BCM57712 },
  185. { PCI_VDEVICE(BROADCOM, PCI_DEVICE_ID_NX2_57712_MF), BCM57712_MF },
  186. { PCI_VDEVICE(BROADCOM, PCI_DEVICE_ID_NX2_57800), BCM57800 },
  187. { PCI_VDEVICE(BROADCOM, PCI_DEVICE_ID_NX2_57800_MF), BCM57800_MF },
  188. { PCI_VDEVICE(BROADCOM, PCI_DEVICE_ID_NX2_57810), BCM57810 },
  189. { PCI_VDEVICE(BROADCOM, PCI_DEVICE_ID_NX2_57810_MF), BCM57810_MF },
  190. { PCI_VDEVICE(BROADCOM, PCI_DEVICE_ID_NX2_57840), BCM57840 },
  191. { PCI_VDEVICE(BROADCOM, PCI_DEVICE_ID_NX2_57840_MF), BCM57840_MF },
  192. { 0 }
  193. };
  194. MODULE_DEVICE_TABLE(pci, bnx2x_pci_tbl);
  195. /****************************************************************************
  196. * General service functions
  197. ****************************************************************************/
  198. static inline void __storm_memset_dma_mapping(struct bnx2x *bp,
  199. u32 addr, dma_addr_t mapping)
  200. {
  201. REG_WR(bp, addr, U64_LO(mapping));
  202. REG_WR(bp, addr + 4, U64_HI(mapping));
  203. }
  204. static inline void storm_memset_spq_addr(struct bnx2x *bp,
  205. dma_addr_t mapping, u16 abs_fid)
  206. {
  207. u32 addr = XSEM_REG_FAST_MEMORY +
  208. XSTORM_SPQ_PAGE_BASE_OFFSET(abs_fid);
  209. __storm_memset_dma_mapping(bp, addr, mapping);
  210. }
  211. static inline void storm_memset_vf_to_pf(struct bnx2x *bp, u16 abs_fid,
  212. u16 pf_id)
  213. {
  214. REG_WR8(bp, BAR_XSTRORM_INTMEM + XSTORM_VF_TO_PF_OFFSET(abs_fid),
  215. pf_id);
  216. REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_VF_TO_PF_OFFSET(abs_fid),
  217. pf_id);
  218. REG_WR8(bp, BAR_TSTRORM_INTMEM + TSTORM_VF_TO_PF_OFFSET(abs_fid),
  219. pf_id);
  220. REG_WR8(bp, BAR_USTRORM_INTMEM + USTORM_VF_TO_PF_OFFSET(abs_fid),
  221. pf_id);
  222. }
  223. static inline void storm_memset_func_en(struct bnx2x *bp, u16 abs_fid,
  224. u8 enable)
  225. {
  226. REG_WR8(bp, BAR_XSTRORM_INTMEM + XSTORM_FUNC_EN_OFFSET(abs_fid),
  227. enable);
  228. REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_FUNC_EN_OFFSET(abs_fid),
  229. enable);
  230. REG_WR8(bp, BAR_TSTRORM_INTMEM + TSTORM_FUNC_EN_OFFSET(abs_fid),
  231. enable);
  232. REG_WR8(bp, BAR_USTRORM_INTMEM + USTORM_FUNC_EN_OFFSET(abs_fid),
  233. enable);
  234. }
  235. static inline void storm_memset_eq_data(struct bnx2x *bp,
  236. struct event_ring_data *eq_data,
  237. u16 pfid)
  238. {
  239. size_t size = sizeof(struct event_ring_data);
  240. u32 addr = BAR_CSTRORM_INTMEM + CSTORM_EVENT_RING_DATA_OFFSET(pfid);
  241. __storm_memset_struct(bp, addr, size, (u32 *)eq_data);
  242. }
  243. static inline void storm_memset_eq_prod(struct bnx2x *bp, u16 eq_prod,
  244. u16 pfid)
  245. {
  246. u32 addr = BAR_CSTRORM_INTMEM + CSTORM_EVENT_RING_PROD_OFFSET(pfid);
  247. REG_WR16(bp, addr, eq_prod);
  248. }
  249. /* used only at init
  250. * locking is done by mcp
  251. */
  252. static void bnx2x_reg_wr_ind(struct bnx2x *bp, u32 addr, u32 val)
  253. {
  254. pci_write_config_dword(bp->pdev, PCICFG_GRC_ADDRESS, addr);
  255. pci_write_config_dword(bp->pdev, PCICFG_GRC_DATA, val);
  256. pci_write_config_dword(bp->pdev, PCICFG_GRC_ADDRESS,
  257. PCICFG_VENDOR_ID_OFFSET);
  258. }
  259. static u32 bnx2x_reg_rd_ind(struct bnx2x *bp, u32 addr)
  260. {
  261. u32 val;
  262. pci_write_config_dword(bp->pdev, PCICFG_GRC_ADDRESS, addr);
  263. pci_read_config_dword(bp->pdev, PCICFG_GRC_DATA, &val);
  264. pci_write_config_dword(bp->pdev, PCICFG_GRC_ADDRESS,
  265. PCICFG_VENDOR_ID_OFFSET);
  266. return val;
  267. }
  268. #define DMAE_DP_SRC_GRC "grc src_addr [%08x]"
  269. #define DMAE_DP_SRC_PCI "pci src_addr [%x:%08x]"
  270. #define DMAE_DP_DST_GRC "grc dst_addr [%08x]"
  271. #define DMAE_DP_DST_PCI "pci dst_addr [%x:%08x]"
  272. #define DMAE_DP_DST_NONE "dst_addr [none]"
  273. static void bnx2x_dp_dmae(struct bnx2x *bp, struct dmae_command *dmae,
  274. int msglvl)
  275. {
  276. u32 src_type = dmae->opcode & DMAE_COMMAND_SRC;
  277. switch (dmae->opcode & DMAE_COMMAND_DST) {
  278. case DMAE_CMD_DST_PCI:
  279. if (src_type == DMAE_CMD_SRC_PCI)
  280. DP(msglvl, "DMAE: opcode 0x%08x\n"
  281. "src [%x:%08x], len [%d*4], dst [%x:%08x]\n"
  282. "comp_addr [%x:%08x], comp_val 0x%08x\n",
  283. dmae->opcode, dmae->src_addr_hi, dmae->src_addr_lo,
  284. dmae->len, dmae->dst_addr_hi, dmae->dst_addr_lo,
  285. dmae->comp_addr_hi, dmae->comp_addr_lo,
  286. dmae->comp_val);
  287. else
  288. DP(msglvl, "DMAE: opcode 0x%08x\n"
  289. "src [%08x], len [%d*4], dst [%x:%08x]\n"
  290. "comp_addr [%x:%08x], comp_val 0x%08x\n",
  291. dmae->opcode, dmae->src_addr_lo >> 2,
  292. dmae->len, dmae->dst_addr_hi, dmae->dst_addr_lo,
  293. dmae->comp_addr_hi, dmae->comp_addr_lo,
  294. dmae->comp_val);
  295. break;
  296. case DMAE_CMD_DST_GRC:
  297. if (src_type == DMAE_CMD_SRC_PCI)
  298. DP(msglvl, "DMAE: opcode 0x%08x\n"
  299. "src [%x:%08x], len [%d*4], dst_addr [%08x]\n"
  300. "comp_addr [%x:%08x], comp_val 0x%08x\n",
  301. dmae->opcode, dmae->src_addr_hi, dmae->src_addr_lo,
  302. dmae->len, dmae->dst_addr_lo >> 2,
  303. dmae->comp_addr_hi, dmae->comp_addr_lo,
  304. dmae->comp_val);
  305. else
  306. DP(msglvl, "DMAE: opcode 0x%08x\n"
  307. "src [%08x], len [%d*4], dst [%08x]\n"
  308. "comp_addr [%x:%08x], comp_val 0x%08x\n",
  309. dmae->opcode, dmae->src_addr_lo >> 2,
  310. dmae->len, dmae->dst_addr_lo >> 2,
  311. dmae->comp_addr_hi, dmae->comp_addr_lo,
  312. dmae->comp_val);
  313. break;
  314. default:
  315. if (src_type == DMAE_CMD_SRC_PCI)
  316. DP(msglvl, "DMAE: opcode 0x%08x\n"
  317. "src_addr [%x:%08x] len [%d * 4] dst_addr [none]\n"
  318. "comp_addr [%x:%08x] comp_val 0x%08x\n",
  319. dmae->opcode, dmae->src_addr_hi, dmae->src_addr_lo,
  320. dmae->len, dmae->comp_addr_hi, dmae->comp_addr_lo,
  321. dmae->comp_val);
  322. else
  323. DP(msglvl, "DMAE: opcode 0x%08x\n"
  324. "src_addr [%08x] len [%d * 4] dst_addr [none]\n"
  325. "comp_addr [%x:%08x] comp_val 0x%08x\n",
  326. dmae->opcode, dmae->src_addr_lo >> 2,
  327. dmae->len, dmae->comp_addr_hi, dmae->comp_addr_lo,
  328. dmae->comp_val);
  329. break;
  330. }
  331. }
  332. /* copy command into DMAE command memory and set DMAE command go */
  333. void bnx2x_post_dmae(struct bnx2x *bp, struct dmae_command *dmae, int idx)
  334. {
  335. u32 cmd_offset;
  336. int i;
  337. cmd_offset = (DMAE_REG_CMD_MEM + sizeof(struct dmae_command) * idx);
  338. for (i = 0; i < (sizeof(struct dmae_command)/4); i++) {
  339. REG_WR(bp, cmd_offset + i*4, *(((u32 *)dmae) + i));
  340. DP(BNX2X_MSG_OFF, "DMAE cmd[%d].%d (0x%08x) : 0x%08x\n",
  341. idx, i, cmd_offset + i*4, *(((u32 *)dmae) + i));
  342. }
  343. REG_WR(bp, dmae_reg_go_c[idx], 1);
  344. }
  345. u32 bnx2x_dmae_opcode_add_comp(u32 opcode, u8 comp_type)
  346. {
  347. return opcode | ((comp_type << DMAE_COMMAND_C_DST_SHIFT) |
  348. DMAE_CMD_C_ENABLE);
  349. }
  350. u32 bnx2x_dmae_opcode_clr_src_reset(u32 opcode)
  351. {
  352. return opcode & ~DMAE_CMD_SRC_RESET;
  353. }
  354. u32 bnx2x_dmae_opcode(struct bnx2x *bp, u8 src_type, u8 dst_type,
  355. bool with_comp, u8 comp_type)
  356. {
  357. u32 opcode = 0;
  358. opcode |= ((src_type << DMAE_COMMAND_SRC_SHIFT) |
  359. (dst_type << DMAE_COMMAND_DST_SHIFT));
  360. opcode |= (DMAE_CMD_SRC_RESET | DMAE_CMD_DST_RESET);
  361. opcode |= (BP_PORT(bp) ? DMAE_CMD_PORT_1 : DMAE_CMD_PORT_0);
  362. opcode |= ((BP_VN(bp) << DMAE_CMD_E1HVN_SHIFT) |
  363. (BP_VN(bp) << DMAE_COMMAND_DST_VN_SHIFT));
  364. opcode |= (DMAE_COM_SET_ERR << DMAE_COMMAND_ERR_POLICY_SHIFT);
  365. #ifdef __BIG_ENDIAN
  366. opcode |= DMAE_CMD_ENDIANITY_B_DW_SWAP;
  367. #else
  368. opcode |= DMAE_CMD_ENDIANITY_DW_SWAP;
  369. #endif
  370. if (with_comp)
  371. opcode = bnx2x_dmae_opcode_add_comp(opcode, comp_type);
  372. return opcode;
  373. }
  374. static void bnx2x_prep_dmae_with_comp(struct bnx2x *bp,
  375. struct dmae_command *dmae,
  376. u8 src_type, u8 dst_type)
  377. {
  378. memset(dmae, 0, sizeof(struct dmae_command));
  379. /* set the opcode */
  380. dmae->opcode = bnx2x_dmae_opcode(bp, src_type, dst_type,
  381. true, DMAE_COMP_PCI);
  382. /* fill in the completion parameters */
  383. dmae->comp_addr_lo = U64_LO(bnx2x_sp_mapping(bp, wb_comp));
  384. dmae->comp_addr_hi = U64_HI(bnx2x_sp_mapping(bp, wb_comp));
  385. dmae->comp_val = DMAE_COMP_VAL;
  386. }
  387. /* issue a dmae command over the init-channel and wailt for completion */
  388. static int bnx2x_issue_dmae_with_comp(struct bnx2x *bp,
  389. struct dmae_command *dmae)
  390. {
  391. u32 *wb_comp = bnx2x_sp(bp, wb_comp);
  392. int cnt = CHIP_REV_IS_SLOW(bp) ? (400000) : 4000;
  393. int rc = 0;
  394. DP(BNX2X_MSG_OFF, "data before [0x%08x 0x%08x 0x%08x 0x%08x]\n",
  395. bp->slowpath->wb_data[0], bp->slowpath->wb_data[1],
  396. bp->slowpath->wb_data[2], bp->slowpath->wb_data[3]);
  397. /*
  398. * Lock the dmae channel. Disable BHs to prevent a dead-lock
  399. * as long as this code is called both from syscall context and
  400. * from ndo_set_rx_mode() flow that may be called from BH.
  401. */
  402. spin_lock_bh(&bp->dmae_lock);
  403. /* reset completion */
  404. *wb_comp = 0;
  405. /* post the command on the channel used for initializations */
  406. bnx2x_post_dmae(bp, dmae, INIT_DMAE_C(bp));
  407. /* wait for completion */
  408. udelay(5);
  409. while ((*wb_comp & ~DMAE_PCI_ERR_FLAG) != DMAE_COMP_VAL) {
  410. DP(BNX2X_MSG_OFF, "wb_comp 0x%08x\n", *wb_comp);
  411. if (!cnt ||
  412. (bp->recovery_state != BNX2X_RECOVERY_DONE &&
  413. bp->recovery_state != BNX2X_RECOVERY_NIC_LOADING)) {
  414. BNX2X_ERR("DMAE timeout!\n");
  415. rc = DMAE_TIMEOUT;
  416. goto unlock;
  417. }
  418. cnt--;
  419. udelay(50);
  420. }
  421. if (*wb_comp & DMAE_PCI_ERR_FLAG) {
  422. BNX2X_ERR("DMAE PCI error!\n");
  423. rc = DMAE_PCI_ERROR;
  424. }
  425. DP(BNX2X_MSG_OFF, "data after [0x%08x 0x%08x 0x%08x 0x%08x]\n",
  426. bp->slowpath->wb_data[0], bp->slowpath->wb_data[1],
  427. bp->slowpath->wb_data[2], bp->slowpath->wb_data[3]);
  428. unlock:
  429. spin_unlock_bh(&bp->dmae_lock);
  430. return rc;
  431. }
  432. void bnx2x_write_dmae(struct bnx2x *bp, dma_addr_t dma_addr, u32 dst_addr,
  433. u32 len32)
  434. {
  435. struct dmae_command dmae;
  436. if (!bp->dmae_ready) {
  437. u32 *data = bnx2x_sp(bp, wb_data[0]);
  438. DP(BNX2X_MSG_OFF,
  439. "DMAE is not ready (dst_addr %08x len32 %d) using indirect\n",
  440. dst_addr, len32);
  441. if (CHIP_IS_E1(bp))
  442. bnx2x_init_ind_wr(bp, dst_addr, data, len32);
  443. else
  444. bnx2x_init_str_wr(bp, dst_addr, data, len32);
  445. return;
  446. }
  447. /* set opcode and fixed command fields */
  448. bnx2x_prep_dmae_with_comp(bp, &dmae, DMAE_SRC_PCI, DMAE_DST_GRC);
  449. /* fill in addresses and len */
  450. dmae.src_addr_lo = U64_LO(dma_addr);
  451. dmae.src_addr_hi = U64_HI(dma_addr);
  452. dmae.dst_addr_lo = dst_addr >> 2;
  453. dmae.dst_addr_hi = 0;
  454. dmae.len = len32;
  455. bnx2x_dp_dmae(bp, &dmae, BNX2X_MSG_OFF);
  456. /* issue the command and wait for completion */
  457. bnx2x_issue_dmae_with_comp(bp, &dmae);
  458. }
  459. void bnx2x_read_dmae(struct bnx2x *bp, u32 src_addr, u32 len32)
  460. {
  461. struct dmae_command dmae;
  462. if (!bp->dmae_ready) {
  463. u32 *data = bnx2x_sp(bp, wb_data[0]);
  464. int i;
  465. if (CHIP_IS_E1(bp)) {
  466. DP(BNX2X_MSG_OFF,
  467. "DMAE is not ready (src_addr %08x len32 %d) using indirect\n",
  468. src_addr, len32);
  469. for (i = 0; i < len32; i++)
  470. data[i] = bnx2x_reg_rd_ind(bp, src_addr + i*4);
  471. } else
  472. for (i = 0; i < len32; i++)
  473. data[i] = REG_RD(bp, src_addr + i*4);
  474. return;
  475. }
  476. /* set opcode and fixed command fields */
  477. bnx2x_prep_dmae_with_comp(bp, &dmae, DMAE_SRC_GRC, DMAE_DST_PCI);
  478. /* fill in addresses and len */
  479. dmae.src_addr_lo = src_addr >> 2;
  480. dmae.src_addr_hi = 0;
  481. dmae.dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, wb_data));
  482. dmae.dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, wb_data));
  483. dmae.len = len32;
  484. bnx2x_dp_dmae(bp, &dmae, BNX2X_MSG_OFF);
  485. /* issue the command and wait for completion */
  486. bnx2x_issue_dmae_with_comp(bp, &dmae);
  487. }
  488. static void bnx2x_write_dmae_phys_len(struct bnx2x *bp, dma_addr_t phys_addr,
  489. u32 addr, u32 len)
  490. {
  491. int dmae_wr_max = DMAE_LEN32_WR_MAX(bp);
  492. int offset = 0;
  493. while (len > dmae_wr_max) {
  494. bnx2x_write_dmae(bp, phys_addr + offset,
  495. addr + offset, dmae_wr_max);
  496. offset += dmae_wr_max * 4;
  497. len -= dmae_wr_max;
  498. }
  499. bnx2x_write_dmae(bp, phys_addr + offset, addr + offset, len);
  500. }
  501. /* used only for slowpath so not inlined */
  502. static void bnx2x_wb_wr(struct bnx2x *bp, int reg, u32 val_hi, u32 val_lo)
  503. {
  504. u32 wb_write[2];
  505. wb_write[0] = val_hi;
  506. wb_write[1] = val_lo;
  507. REG_WR_DMAE(bp, reg, wb_write, 2);
  508. }
  509. #ifdef USE_WB_RD
  510. static u64 bnx2x_wb_rd(struct bnx2x *bp, int reg)
  511. {
  512. u32 wb_data[2];
  513. REG_RD_DMAE(bp, reg, wb_data, 2);
  514. return HILO_U64(wb_data[0], wb_data[1]);
  515. }
  516. #endif
  517. static int bnx2x_mc_assert(struct bnx2x *bp)
  518. {
  519. char last_idx;
  520. int i, rc = 0;
  521. u32 row0, row1, row2, row3;
  522. /* XSTORM */
  523. last_idx = REG_RD8(bp, BAR_XSTRORM_INTMEM +
  524. XSTORM_ASSERT_LIST_INDEX_OFFSET);
  525. if (last_idx)
  526. BNX2X_ERR("XSTORM_ASSERT_LIST_INDEX 0x%x\n", last_idx);
  527. /* print the asserts */
  528. for (i = 0; i < STROM_ASSERT_ARRAY_SIZE; i++) {
  529. row0 = REG_RD(bp, BAR_XSTRORM_INTMEM +
  530. XSTORM_ASSERT_LIST_OFFSET(i));
  531. row1 = REG_RD(bp, BAR_XSTRORM_INTMEM +
  532. XSTORM_ASSERT_LIST_OFFSET(i) + 4);
  533. row2 = REG_RD(bp, BAR_XSTRORM_INTMEM +
  534. XSTORM_ASSERT_LIST_OFFSET(i) + 8);
  535. row3 = REG_RD(bp, BAR_XSTRORM_INTMEM +
  536. XSTORM_ASSERT_LIST_OFFSET(i) + 12);
  537. if (row0 != COMMON_ASM_INVALID_ASSERT_OPCODE) {
  538. BNX2X_ERR("XSTORM_ASSERT_INDEX 0x%x = 0x%08x"
  539. " 0x%08x 0x%08x 0x%08x\n",
  540. i, row3, row2, row1, row0);
  541. rc++;
  542. } else {
  543. break;
  544. }
  545. }
  546. /* TSTORM */
  547. last_idx = REG_RD8(bp, BAR_TSTRORM_INTMEM +
  548. TSTORM_ASSERT_LIST_INDEX_OFFSET);
  549. if (last_idx)
  550. BNX2X_ERR("TSTORM_ASSERT_LIST_INDEX 0x%x\n", last_idx);
  551. /* print the asserts */
  552. for (i = 0; i < STROM_ASSERT_ARRAY_SIZE; i++) {
  553. row0 = REG_RD(bp, BAR_TSTRORM_INTMEM +
  554. TSTORM_ASSERT_LIST_OFFSET(i));
  555. row1 = REG_RD(bp, BAR_TSTRORM_INTMEM +
  556. TSTORM_ASSERT_LIST_OFFSET(i) + 4);
  557. row2 = REG_RD(bp, BAR_TSTRORM_INTMEM +
  558. TSTORM_ASSERT_LIST_OFFSET(i) + 8);
  559. row3 = REG_RD(bp, BAR_TSTRORM_INTMEM +
  560. TSTORM_ASSERT_LIST_OFFSET(i) + 12);
  561. if (row0 != COMMON_ASM_INVALID_ASSERT_OPCODE) {
  562. BNX2X_ERR("TSTORM_ASSERT_INDEX 0x%x = 0x%08x"
  563. " 0x%08x 0x%08x 0x%08x\n",
  564. i, row3, row2, row1, row0);
  565. rc++;
  566. } else {
  567. break;
  568. }
  569. }
  570. /* CSTORM */
  571. last_idx = REG_RD8(bp, BAR_CSTRORM_INTMEM +
  572. CSTORM_ASSERT_LIST_INDEX_OFFSET);
  573. if (last_idx)
  574. BNX2X_ERR("CSTORM_ASSERT_LIST_INDEX 0x%x\n", last_idx);
  575. /* print the asserts */
  576. for (i = 0; i < STROM_ASSERT_ARRAY_SIZE; i++) {
  577. row0 = REG_RD(bp, BAR_CSTRORM_INTMEM +
  578. CSTORM_ASSERT_LIST_OFFSET(i));
  579. row1 = REG_RD(bp, BAR_CSTRORM_INTMEM +
  580. CSTORM_ASSERT_LIST_OFFSET(i) + 4);
  581. row2 = REG_RD(bp, BAR_CSTRORM_INTMEM +
  582. CSTORM_ASSERT_LIST_OFFSET(i) + 8);
  583. row3 = REG_RD(bp, BAR_CSTRORM_INTMEM +
  584. CSTORM_ASSERT_LIST_OFFSET(i) + 12);
  585. if (row0 != COMMON_ASM_INVALID_ASSERT_OPCODE) {
  586. BNX2X_ERR("CSTORM_ASSERT_INDEX 0x%x = 0x%08x"
  587. " 0x%08x 0x%08x 0x%08x\n",
  588. i, row3, row2, row1, row0);
  589. rc++;
  590. } else {
  591. break;
  592. }
  593. }
  594. /* USTORM */
  595. last_idx = REG_RD8(bp, BAR_USTRORM_INTMEM +
  596. USTORM_ASSERT_LIST_INDEX_OFFSET);
  597. if (last_idx)
  598. BNX2X_ERR("USTORM_ASSERT_LIST_INDEX 0x%x\n", last_idx);
  599. /* print the asserts */
  600. for (i = 0; i < STROM_ASSERT_ARRAY_SIZE; i++) {
  601. row0 = REG_RD(bp, BAR_USTRORM_INTMEM +
  602. USTORM_ASSERT_LIST_OFFSET(i));
  603. row1 = REG_RD(bp, BAR_USTRORM_INTMEM +
  604. USTORM_ASSERT_LIST_OFFSET(i) + 4);
  605. row2 = REG_RD(bp, BAR_USTRORM_INTMEM +
  606. USTORM_ASSERT_LIST_OFFSET(i) + 8);
  607. row3 = REG_RD(bp, BAR_USTRORM_INTMEM +
  608. USTORM_ASSERT_LIST_OFFSET(i) + 12);
  609. if (row0 != COMMON_ASM_INVALID_ASSERT_OPCODE) {
  610. BNX2X_ERR("USTORM_ASSERT_INDEX 0x%x = 0x%08x"
  611. " 0x%08x 0x%08x 0x%08x\n",
  612. i, row3, row2, row1, row0);
  613. rc++;
  614. } else {
  615. break;
  616. }
  617. }
  618. return rc;
  619. }
  620. void bnx2x_fw_dump_lvl(struct bnx2x *bp, const char *lvl)
  621. {
  622. u32 addr, val;
  623. u32 mark, offset;
  624. __be32 data[9];
  625. int word;
  626. u32 trace_shmem_base;
  627. if (BP_NOMCP(bp)) {
  628. BNX2X_ERR("NO MCP - can not dump\n");
  629. return;
  630. }
  631. netdev_printk(lvl, bp->dev, "bc %d.%d.%d\n",
  632. (bp->common.bc_ver & 0xff0000) >> 16,
  633. (bp->common.bc_ver & 0xff00) >> 8,
  634. (bp->common.bc_ver & 0xff));
  635. val = REG_RD(bp, MCP_REG_MCPR_CPU_PROGRAM_COUNTER);
  636. if (val == REG_RD(bp, MCP_REG_MCPR_CPU_PROGRAM_COUNTER))
  637. printk("%s" "MCP PC at 0x%x\n", lvl, val);
  638. if (BP_PATH(bp) == 0)
  639. trace_shmem_base = bp->common.shmem_base;
  640. else
  641. trace_shmem_base = SHMEM2_RD(bp, other_shmem_base_addr);
  642. addr = trace_shmem_base - 0x0800 + 4;
  643. mark = REG_RD(bp, addr);
  644. mark = (CHIP_IS_E1x(bp) ? MCP_REG_MCPR_SCRATCH : MCP_A_REG_MCPR_SCRATCH)
  645. + ((mark + 0x3) & ~0x3) - 0x08000000;
  646. printk("%s" "begin fw dump (mark 0x%x)\n", lvl, mark);
  647. printk("%s", lvl);
  648. for (offset = mark; offset <= trace_shmem_base; offset += 0x8*4) {
  649. for (word = 0; word < 8; word++)
  650. data[word] = htonl(REG_RD(bp, offset + 4*word));
  651. data[8] = 0x0;
  652. pr_cont("%s", (char *)data);
  653. }
  654. for (offset = addr + 4; offset <= mark; offset += 0x8*4) {
  655. for (word = 0; word < 8; word++)
  656. data[word] = htonl(REG_RD(bp, offset + 4*word));
  657. data[8] = 0x0;
  658. pr_cont("%s", (char *)data);
  659. }
  660. printk("%s" "end of fw dump\n", lvl);
  661. }
  662. static inline void bnx2x_fw_dump(struct bnx2x *bp)
  663. {
  664. bnx2x_fw_dump_lvl(bp, KERN_ERR);
  665. }
  666. void bnx2x_panic_dump(struct bnx2x *bp)
  667. {
  668. int i;
  669. u16 j;
  670. struct hc_sp_status_block_data sp_sb_data;
  671. int func = BP_FUNC(bp);
  672. #ifdef BNX2X_STOP_ON_ERROR
  673. u16 start = 0, end = 0;
  674. u8 cos;
  675. #endif
  676. bp->stats_state = STATS_STATE_DISABLED;
  677. DP(BNX2X_MSG_STATS, "stats_state - DISABLED\n");
  678. BNX2X_ERR("begin crash dump -----------------\n");
  679. /* Indices */
  680. /* Common */
  681. BNX2X_ERR("def_idx(0x%x) def_att_idx(0x%x) attn_state(0x%x)"
  682. " spq_prod_idx(0x%x) next_stats_cnt(0x%x)\n",
  683. bp->def_idx, bp->def_att_idx, bp->attn_state,
  684. bp->spq_prod_idx, bp->stats_counter);
  685. BNX2X_ERR("DSB: attn bits(0x%x) ack(0x%x) id(0x%x) idx(0x%x)\n",
  686. bp->def_status_blk->atten_status_block.attn_bits,
  687. bp->def_status_blk->atten_status_block.attn_bits_ack,
  688. bp->def_status_blk->atten_status_block.status_block_id,
  689. bp->def_status_blk->atten_status_block.attn_bits_index);
  690. BNX2X_ERR(" def (");
  691. for (i = 0; i < HC_SP_SB_MAX_INDICES; i++)
  692. pr_cont("0x%x%s",
  693. bp->def_status_blk->sp_sb.index_values[i],
  694. (i == HC_SP_SB_MAX_INDICES - 1) ? ") " : " ");
  695. for (i = 0; i < sizeof(struct hc_sp_status_block_data)/sizeof(u32); i++)
  696. *((u32 *)&sp_sb_data + i) = REG_RD(bp, BAR_CSTRORM_INTMEM +
  697. CSTORM_SP_STATUS_BLOCK_DATA_OFFSET(func) +
  698. i*sizeof(u32));
  699. pr_cont("igu_sb_id(0x%x) igu_seg_id(0x%x) pf_id(0x%x) vnic_id(0x%x) vf_id(0x%x) vf_valid (0x%x) state(0x%x)\n",
  700. sp_sb_data.igu_sb_id,
  701. sp_sb_data.igu_seg_id,
  702. sp_sb_data.p_func.pf_id,
  703. sp_sb_data.p_func.vnic_id,
  704. sp_sb_data.p_func.vf_id,
  705. sp_sb_data.p_func.vf_valid,
  706. sp_sb_data.state);
  707. for_each_eth_queue(bp, i) {
  708. struct bnx2x_fastpath *fp = &bp->fp[i];
  709. int loop;
  710. struct hc_status_block_data_e2 sb_data_e2;
  711. struct hc_status_block_data_e1x sb_data_e1x;
  712. struct hc_status_block_sm *hc_sm_p =
  713. CHIP_IS_E1x(bp) ?
  714. sb_data_e1x.common.state_machine :
  715. sb_data_e2.common.state_machine;
  716. struct hc_index_data *hc_index_p =
  717. CHIP_IS_E1x(bp) ?
  718. sb_data_e1x.index_data :
  719. sb_data_e2.index_data;
  720. u8 data_size, cos;
  721. u32 *sb_data_p;
  722. struct bnx2x_fp_txdata txdata;
  723. /* Rx */
  724. BNX2X_ERR("fp%d: rx_bd_prod(0x%x) rx_bd_cons(0x%x)"
  725. " rx_comp_prod(0x%x)"
  726. " rx_comp_cons(0x%x) *rx_cons_sb(0x%x)\n",
  727. i, fp->rx_bd_prod, fp->rx_bd_cons,
  728. fp->rx_comp_prod,
  729. fp->rx_comp_cons, le16_to_cpu(*fp->rx_cons_sb));
  730. BNX2X_ERR(" rx_sge_prod(0x%x) last_max_sge(0x%x)"
  731. " fp_hc_idx(0x%x)\n",
  732. fp->rx_sge_prod, fp->last_max_sge,
  733. le16_to_cpu(fp->fp_hc_idx));
  734. /* Tx */
  735. for_each_cos_in_tx_queue(fp, cos)
  736. {
  737. txdata = fp->txdata[cos];
  738. BNX2X_ERR("fp%d: tx_pkt_prod(0x%x) tx_pkt_cons(0x%x)"
  739. " tx_bd_prod(0x%x) tx_bd_cons(0x%x)"
  740. " *tx_cons_sb(0x%x)\n",
  741. i, txdata.tx_pkt_prod,
  742. txdata.tx_pkt_cons, txdata.tx_bd_prod,
  743. txdata.tx_bd_cons,
  744. le16_to_cpu(*txdata.tx_cons_sb));
  745. }
  746. loop = CHIP_IS_E1x(bp) ?
  747. HC_SB_MAX_INDICES_E1X : HC_SB_MAX_INDICES_E2;
  748. /* host sb data */
  749. #ifdef BCM_CNIC
  750. if (IS_FCOE_FP(fp))
  751. continue;
  752. #endif
  753. BNX2X_ERR(" run indexes (");
  754. for (j = 0; j < HC_SB_MAX_SM; j++)
  755. pr_cont("0x%x%s",
  756. fp->sb_running_index[j],
  757. (j == HC_SB_MAX_SM - 1) ? ")" : " ");
  758. BNX2X_ERR(" indexes (");
  759. for (j = 0; j < loop; j++)
  760. pr_cont("0x%x%s",
  761. fp->sb_index_values[j],
  762. (j == loop - 1) ? ")" : " ");
  763. /* fw sb data */
  764. data_size = CHIP_IS_E1x(bp) ?
  765. sizeof(struct hc_status_block_data_e1x) :
  766. sizeof(struct hc_status_block_data_e2);
  767. data_size /= sizeof(u32);
  768. sb_data_p = CHIP_IS_E1x(bp) ?
  769. (u32 *)&sb_data_e1x :
  770. (u32 *)&sb_data_e2;
  771. /* copy sb data in here */
  772. for (j = 0; j < data_size; j++)
  773. *(sb_data_p + j) = REG_RD(bp, BAR_CSTRORM_INTMEM +
  774. CSTORM_STATUS_BLOCK_DATA_OFFSET(fp->fw_sb_id) +
  775. j * sizeof(u32));
  776. if (!CHIP_IS_E1x(bp)) {
  777. pr_cont("pf_id(0x%x) vf_id(0x%x) vf_valid(0x%x) "
  778. "vnic_id(0x%x) same_igu_sb_1b(0x%x) "
  779. "state(0x%x)\n",
  780. sb_data_e2.common.p_func.pf_id,
  781. sb_data_e2.common.p_func.vf_id,
  782. sb_data_e2.common.p_func.vf_valid,
  783. sb_data_e2.common.p_func.vnic_id,
  784. sb_data_e2.common.same_igu_sb_1b,
  785. sb_data_e2.common.state);
  786. } else {
  787. pr_cont("pf_id(0x%x) vf_id(0x%x) vf_valid(0x%x) "
  788. "vnic_id(0x%x) same_igu_sb_1b(0x%x) "
  789. "state(0x%x)\n",
  790. sb_data_e1x.common.p_func.pf_id,
  791. sb_data_e1x.common.p_func.vf_id,
  792. sb_data_e1x.common.p_func.vf_valid,
  793. sb_data_e1x.common.p_func.vnic_id,
  794. sb_data_e1x.common.same_igu_sb_1b,
  795. sb_data_e1x.common.state);
  796. }
  797. /* SB_SMs data */
  798. for (j = 0; j < HC_SB_MAX_SM; j++) {
  799. pr_cont("SM[%d] __flags (0x%x) "
  800. "igu_sb_id (0x%x) igu_seg_id(0x%x) "
  801. "time_to_expire (0x%x) "
  802. "timer_value(0x%x)\n", j,
  803. hc_sm_p[j].__flags,
  804. hc_sm_p[j].igu_sb_id,
  805. hc_sm_p[j].igu_seg_id,
  806. hc_sm_p[j].time_to_expire,
  807. hc_sm_p[j].timer_value);
  808. }
  809. /* Indecies data */
  810. for (j = 0; j < loop; j++) {
  811. pr_cont("INDEX[%d] flags (0x%x) "
  812. "timeout (0x%x)\n", j,
  813. hc_index_p[j].flags,
  814. hc_index_p[j].timeout);
  815. }
  816. }
  817. #ifdef BNX2X_STOP_ON_ERROR
  818. /* Rings */
  819. /* Rx */
  820. for_each_rx_queue(bp, i) {
  821. struct bnx2x_fastpath *fp = &bp->fp[i];
  822. start = RX_BD(le16_to_cpu(*fp->rx_cons_sb) - 10);
  823. end = RX_BD(le16_to_cpu(*fp->rx_cons_sb) + 503);
  824. for (j = start; j != end; j = RX_BD(j + 1)) {
  825. u32 *rx_bd = (u32 *)&fp->rx_desc_ring[j];
  826. struct sw_rx_bd *sw_bd = &fp->rx_buf_ring[j];
  827. BNX2X_ERR("fp%d: rx_bd[%x]=[%x:%x] sw_bd=[%p]\n",
  828. i, j, rx_bd[1], rx_bd[0], sw_bd->data);
  829. }
  830. start = RX_SGE(fp->rx_sge_prod);
  831. end = RX_SGE(fp->last_max_sge);
  832. for (j = start; j != end; j = RX_SGE(j + 1)) {
  833. u32 *rx_sge = (u32 *)&fp->rx_sge_ring[j];
  834. struct sw_rx_page *sw_page = &fp->rx_page_ring[j];
  835. BNX2X_ERR("fp%d: rx_sge[%x]=[%x:%x] sw_page=[%p]\n",
  836. i, j, rx_sge[1], rx_sge[0], sw_page->page);
  837. }
  838. start = RCQ_BD(fp->rx_comp_cons - 10);
  839. end = RCQ_BD(fp->rx_comp_cons + 503);
  840. for (j = start; j != end; j = RCQ_BD(j + 1)) {
  841. u32 *cqe = (u32 *)&fp->rx_comp_ring[j];
  842. BNX2X_ERR("fp%d: cqe[%x]=[%x:%x:%x:%x]\n",
  843. i, j, cqe[0], cqe[1], cqe[2], cqe[3]);
  844. }
  845. }
  846. /* Tx */
  847. for_each_tx_queue(bp, i) {
  848. struct bnx2x_fastpath *fp = &bp->fp[i];
  849. for_each_cos_in_tx_queue(fp, cos) {
  850. struct bnx2x_fp_txdata *txdata = &fp->txdata[cos];
  851. start = TX_BD(le16_to_cpu(*txdata->tx_cons_sb) - 10);
  852. end = TX_BD(le16_to_cpu(*txdata->tx_cons_sb) + 245);
  853. for (j = start; j != end; j = TX_BD(j + 1)) {
  854. struct sw_tx_bd *sw_bd =
  855. &txdata->tx_buf_ring[j];
  856. BNX2X_ERR("fp%d: txdata %d, "
  857. "packet[%x]=[%p,%x]\n",
  858. i, cos, j, sw_bd->skb,
  859. sw_bd->first_bd);
  860. }
  861. start = TX_BD(txdata->tx_bd_cons - 10);
  862. end = TX_BD(txdata->tx_bd_cons + 254);
  863. for (j = start; j != end; j = TX_BD(j + 1)) {
  864. u32 *tx_bd = (u32 *)&txdata->tx_desc_ring[j];
  865. BNX2X_ERR("fp%d: txdata %d, tx_bd[%x]="
  866. "[%x:%x:%x:%x]\n",
  867. i, cos, j, tx_bd[0], tx_bd[1],
  868. tx_bd[2], tx_bd[3]);
  869. }
  870. }
  871. }
  872. #endif
  873. bnx2x_fw_dump(bp);
  874. bnx2x_mc_assert(bp);
  875. BNX2X_ERR("end crash dump -----------------\n");
  876. }
  877. /*
  878. * FLR Support for E2
  879. *
  880. * bnx2x_pf_flr_clnup() is called during nic_load in the per function HW
  881. * initialization.
  882. */
  883. #define FLR_WAIT_USEC 10000 /* 10 miliseconds */
  884. #define FLR_WAIT_INTERVAL 50 /* usec */
  885. #define FLR_POLL_CNT (FLR_WAIT_USEC/FLR_WAIT_INTERVAL) /* 200 */
  886. struct pbf_pN_buf_regs {
  887. int pN;
  888. u32 init_crd;
  889. u32 crd;
  890. u32 crd_freed;
  891. };
  892. struct pbf_pN_cmd_regs {
  893. int pN;
  894. u32 lines_occup;
  895. u32 lines_freed;
  896. };
  897. static void bnx2x_pbf_pN_buf_flushed(struct bnx2x *bp,
  898. struct pbf_pN_buf_regs *regs,
  899. u32 poll_count)
  900. {
  901. u32 init_crd, crd, crd_start, crd_freed, crd_freed_start;
  902. u32 cur_cnt = poll_count;
  903. crd_freed = crd_freed_start = REG_RD(bp, regs->crd_freed);
  904. crd = crd_start = REG_RD(bp, regs->crd);
  905. init_crd = REG_RD(bp, regs->init_crd);
  906. DP(BNX2X_MSG_SP, "INIT CREDIT[%d] : %x\n", regs->pN, init_crd);
  907. DP(BNX2X_MSG_SP, "CREDIT[%d] : s:%x\n", regs->pN, crd);
  908. DP(BNX2X_MSG_SP, "CREDIT_FREED[%d]: s:%x\n", regs->pN, crd_freed);
  909. while ((crd != init_crd) && ((u32)SUB_S32(crd_freed, crd_freed_start) <
  910. (init_crd - crd_start))) {
  911. if (cur_cnt--) {
  912. udelay(FLR_WAIT_INTERVAL);
  913. crd = REG_RD(bp, regs->crd);
  914. crd_freed = REG_RD(bp, regs->crd_freed);
  915. } else {
  916. DP(BNX2X_MSG_SP, "PBF tx buffer[%d] timed out\n",
  917. regs->pN);
  918. DP(BNX2X_MSG_SP, "CREDIT[%d] : c:%x\n",
  919. regs->pN, crd);
  920. DP(BNX2X_MSG_SP, "CREDIT_FREED[%d]: c:%x\n",
  921. regs->pN, crd_freed);
  922. break;
  923. }
  924. }
  925. DP(BNX2X_MSG_SP, "Waited %d*%d usec for PBF tx buffer[%d]\n",
  926. poll_count-cur_cnt, FLR_WAIT_INTERVAL, regs->pN);
  927. }
  928. static void bnx2x_pbf_pN_cmd_flushed(struct bnx2x *bp,
  929. struct pbf_pN_cmd_regs *regs,
  930. u32 poll_count)
  931. {
  932. u32 occup, to_free, freed, freed_start;
  933. u32 cur_cnt = poll_count;
  934. occup = to_free = REG_RD(bp, regs->lines_occup);
  935. freed = freed_start = REG_RD(bp, regs->lines_freed);
  936. DP(BNX2X_MSG_SP, "OCCUPANCY[%d] : s:%x\n", regs->pN, occup);
  937. DP(BNX2X_MSG_SP, "LINES_FREED[%d] : s:%x\n", regs->pN, freed);
  938. while (occup && ((u32)SUB_S32(freed, freed_start) < to_free)) {
  939. if (cur_cnt--) {
  940. udelay(FLR_WAIT_INTERVAL);
  941. occup = REG_RD(bp, regs->lines_occup);
  942. freed = REG_RD(bp, regs->lines_freed);
  943. } else {
  944. DP(BNX2X_MSG_SP, "PBF cmd queue[%d] timed out\n",
  945. regs->pN);
  946. DP(BNX2X_MSG_SP, "OCCUPANCY[%d] : s:%x\n",
  947. regs->pN, occup);
  948. DP(BNX2X_MSG_SP, "LINES_FREED[%d] : s:%x\n",
  949. regs->pN, freed);
  950. break;
  951. }
  952. }
  953. DP(BNX2X_MSG_SP, "Waited %d*%d usec for PBF cmd queue[%d]\n",
  954. poll_count-cur_cnt, FLR_WAIT_INTERVAL, regs->pN);
  955. }
  956. static inline u32 bnx2x_flr_clnup_reg_poll(struct bnx2x *bp, u32 reg,
  957. u32 expected, u32 poll_count)
  958. {
  959. u32 cur_cnt = poll_count;
  960. u32 val;
  961. while ((val = REG_RD(bp, reg)) != expected && cur_cnt--)
  962. udelay(FLR_WAIT_INTERVAL);
  963. return val;
  964. }
  965. static inline int bnx2x_flr_clnup_poll_hw_counter(struct bnx2x *bp, u32 reg,
  966. char *msg, u32 poll_cnt)
  967. {
  968. u32 val = bnx2x_flr_clnup_reg_poll(bp, reg, 0, poll_cnt);
  969. if (val != 0) {
  970. BNX2X_ERR("%s usage count=%d\n", msg, val);
  971. return 1;
  972. }
  973. return 0;
  974. }
  975. static u32 bnx2x_flr_clnup_poll_count(struct bnx2x *bp)
  976. {
  977. /* adjust polling timeout */
  978. if (CHIP_REV_IS_EMUL(bp))
  979. return FLR_POLL_CNT * 2000;
  980. if (CHIP_REV_IS_FPGA(bp))
  981. return FLR_POLL_CNT * 120;
  982. return FLR_POLL_CNT;
  983. }
  984. static void bnx2x_tx_hw_flushed(struct bnx2x *bp, u32 poll_count)
  985. {
  986. struct pbf_pN_cmd_regs cmd_regs[] = {
  987. {0, (CHIP_IS_E3B0(bp)) ?
  988. PBF_REG_TQ_OCCUPANCY_Q0 :
  989. PBF_REG_P0_TQ_OCCUPANCY,
  990. (CHIP_IS_E3B0(bp)) ?
  991. PBF_REG_TQ_LINES_FREED_CNT_Q0 :
  992. PBF_REG_P0_TQ_LINES_FREED_CNT},
  993. {1, (CHIP_IS_E3B0(bp)) ?
  994. PBF_REG_TQ_OCCUPANCY_Q1 :
  995. PBF_REG_P1_TQ_OCCUPANCY,
  996. (CHIP_IS_E3B0(bp)) ?
  997. PBF_REG_TQ_LINES_FREED_CNT_Q1 :
  998. PBF_REG_P1_TQ_LINES_FREED_CNT},
  999. {4, (CHIP_IS_E3B0(bp)) ?
  1000. PBF_REG_TQ_OCCUPANCY_LB_Q :
  1001. PBF_REG_P4_TQ_OCCUPANCY,
  1002. (CHIP_IS_E3B0(bp)) ?
  1003. PBF_REG_TQ_LINES_FREED_CNT_LB_Q :
  1004. PBF_REG_P4_TQ_LINES_FREED_CNT}
  1005. };
  1006. struct pbf_pN_buf_regs buf_regs[] = {
  1007. {0, (CHIP_IS_E3B0(bp)) ?
  1008. PBF_REG_INIT_CRD_Q0 :
  1009. PBF_REG_P0_INIT_CRD ,
  1010. (CHIP_IS_E3B0(bp)) ?
  1011. PBF_REG_CREDIT_Q0 :
  1012. PBF_REG_P0_CREDIT,
  1013. (CHIP_IS_E3B0(bp)) ?
  1014. PBF_REG_INTERNAL_CRD_FREED_CNT_Q0 :
  1015. PBF_REG_P0_INTERNAL_CRD_FREED_CNT},
  1016. {1, (CHIP_IS_E3B0(bp)) ?
  1017. PBF_REG_INIT_CRD_Q1 :
  1018. PBF_REG_P1_INIT_CRD,
  1019. (CHIP_IS_E3B0(bp)) ?
  1020. PBF_REG_CREDIT_Q1 :
  1021. PBF_REG_P1_CREDIT,
  1022. (CHIP_IS_E3B0(bp)) ?
  1023. PBF_REG_INTERNAL_CRD_FREED_CNT_Q1 :
  1024. PBF_REG_P1_INTERNAL_CRD_FREED_CNT},
  1025. {4, (CHIP_IS_E3B0(bp)) ?
  1026. PBF_REG_INIT_CRD_LB_Q :
  1027. PBF_REG_P4_INIT_CRD,
  1028. (CHIP_IS_E3B0(bp)) ?
  1029. PBF_REG_CREDIT_LB_Q :
  1030. PBF_REG_P4_CREDIT,
  1031. (CHIP_IS_E3B0(bp)) ?
  1032. PBF_REG_INTERNAL_CRD_FREED_CNT_LB_Q :
  1033. PBF_REG_P4_INTERNAL_CRD_FREED_CNT},
  1034. };
  1035. int i;
  1036. /* Verify the command queues are flushed P0, P1, P4 */
  1037. for (i = 0; i < ARRAY_SIZE(cmd_regs); i++)
  1038. bnx2x_pbf_pN_cmd_flushed(bp, &cmd_regs[i], poll_count);
  1039. /* Verify the transmission buffers are flushed P0, P1, P4 */
  1040. for (i = 0; i < ARRAY_SIZE(buf_regs); i++)
  1041. bnx2x_pbf_pN_buf_flushed(bp, &buf_regs[i], poll_count);
  1042. }
  1043. #define OP_GEN_PARAM(param) \
  1044. (((param) << SDM_OP_GEN_COMP_PARAM_SHIFT) & SDM_OP_GEN_COMP_PARAM)
  1045. #define OP_GEN_TYPE(type) \
  1046. (((type) << SDM_OP_GEN_COMP_TYPE_SHIFT) & SDM_OP_GEN_COMP_TYPE)
  1047. #define OP_GEN_AGG_VECT(index) \
  1048. (((index) << SDM_OP_GEN_AGG_VECT_IDX_SHIFT) & SDM_OP_GEN_AGG_VECT_IDX)
  1049. static inline int bnx2x_send_final_clnup(struct bnx2x *bp, u8 clnup_func,
  1050. u32 poll_cnt)
  1051. {
  1052. struct sdm_op_gen op_gen = {0};
  1053. u32 comp_addr = BAR_CSTRORM_INTMEM +
  1054. CSTORM_FINAL_CLEANUP_COMPLETE_OFFSET(clnup_func);
  1055. int ret = 0;
  1056. if (REG_RD(bp, comp_addr)) {
  1057. BNX2X_ERR("Cleanup complete was not 0 before sending\n");
  1058. return 1;
  1059. }
  1060. op_gen.command |= OP_GEN_PARAM(XSTORM_AGG_INT_FINAL_CLEANUP_INDEX);
  1061. op_gen.command |= OP_GEN_TYPE(XSTORM_AGG_INT_FINAL_CLEANUP_COMP_TYPE);
  1062. op_gen.command |= OP_GEN_AGG_VECT(clnup_func);
  1063. op_gen.command |= 1 << SDM_OP_GEN_AGG_VECT_IDX_VALID_SHIFT;
  1064. DP(BNX2X_MSG_SP, "sending FW Final cleanup\n");
  1065. REG_WR(bp, XSDM_REG_OPERATION_GEN, op_gen.command);
  1066. if (bnx2x_flr_clnup_reg_poll(bp, comp_addr, 1, poll_cnt) != 1) {
  1067. BNX2X_ERR("FW final cleanup did not succeed\n");
  1068. ret = 1;
  1069. }
  1070. /* Zero completion for nxt FLR */
  1071. REG_WR(bp, comp_addr, 0);
  1072. return ret;
  1073. }
  1074. static inline u8 bnx2x_is_pcie_pending(struct pci_dev *dev)
  1075. {
  1076. int pos;
  1077. u16 status;
  1078. pos = pci_pcie_cap(dev);
  1079. if (!pos)
  1080. return false;
  1081. pci_read_config_word(dev, pos + PCI_EXP_DEVSTA, &status);
  1082. return status & PCI_EXP_DEVSTA_TRPND;
  1083. }
  1084. /* PF FLR specific routines
  1085. */
  1086. static int bnx2x_poll_hw_usage_counters(struct bnx2x *bp, u32 poll_cnt)
  1087. {
  1088. /* wait for CFC PF usage-counter to zero (includes all the VFs) */
  1089. if (bnx2x_flr_clnup_poll_hw_counter(bp,
  1090. CFC_REG_NUM_LCIDS_INSIDE_PF,
  1091. "CFC PF usage counter timed out",
  1092. poll_cnt))
  1093. return 1;
  1094. /* Wait for DQ PF usage-counter to zero (until DQ cleanup) */
  1095. if (bnx2x_flr_clnup_poll_hw_counter(bp,
  1096. DORQ_REG_PF_USAGE_CNT,
  1097. "DQ PF usage counter timed out",
  1098. poll_cnt))
  1099. return 1;
  1100. /* Wait for QM PF usage-counter to zero (until DQ cleanup) */
  1101. if (bnx2x_flr_clnup_poll_hw_counter(bp,
  1102. QM_REG_PF_USG_CNT_0 + 4*BP_FUNC(bp),
  1103. "QM PF usage counter timed out",
  1104. poll_cnt))
  1105. return 1;
  1106. /* Wait for Timer PF usage-counters to zero (until DQ cleanup) */
  1107. if (bnx2x_flr_clnup_poll_hw_counter(bp,
  1108. TM_REG_LIN0_VNIC_UC + 4*BP_PORT(bp),
  1109. "Timers VNIC usage counter timed out",
  1110. poll_cnt))
  1111. return 1;
  1112. if (bnx2x_flr_clnup_poll_hw_counter(bp,
  1113. TM_REG_LIN0_NUM_SCANS + 4*BP_PORT(bp),
  1114. "Timers NUM_SCANS usage counter timed out",
  1115. poll_cnt))
  1116. return 1;
  1117. /* Wait DMAE PF usage counter to zero */
  1118. if (bnx2x_flr_clnup_poll_hw_counter(bp,
  1119. dmae_reg_go_c[INIT_DMAE_C(bp)],
  1120. "DMAE dommand register timed out",
  1121. poll_cnt))
  1122. return 1;
  1123. return 0;
  1124. }
  1125. static void bnx2x_hw_enable_status(struct bnx2x *bp)
  1126. {
  1127. u32 val;
  1128. val = REG_RD(bp, CFC_REG_WEAK_ENABLE_PF);
  1129. DP(BNX2X_MSG_SP, "CFC_REG_WEAK_ENABLE_PF is 0x%x\n", val);
  1130. val = REG_RD(bp, PBF_REG_DISABLE_PF);
  1131. DP(BNX2X_MSG_SP, "PBF_REG_DISABLE_PF is 0x%x\n", val);
  1132. val = REG_RD(bp, IGU_REG_PCI_PF_MSI_EN);
  1133. DP(BNX2X_MSG_SP, "IGU_REG_PCI_PF_MSI_EN is 0x%x\n", val);
  1134. val = REG_RD(bp, IGU_REG_PCI_PF_MSIX_EN);
  1135. DP(BNX2X_MSG_SP, "IGU_REG_PCI_PF_MSIX_EN is 0x%x\n", val);
  1136. val = REG_RD(bp, IGU_REG_PCI_PF_MSIX_FUNC_MASK);
  1137. DP(BNX2X_MSG_SP, "IGU_REG_PCI_PF_MSIX_FUNC_MASK is 0x%x\n", val);
  1138. val = REG_RD(bp, PGLUE_B_REG_SHADOW_BME_PF_7_0_CLR);
  1139. DP(BNX2X_MSG_SP, "PGLUE_B_REG_SHADOW_BME_PF_7_0_CLR is 0x%x\n", val);
  1140. val = REG_RD(bp, PGLUE_B_REG_FLR_REQUEST_PF_7_0_CLR);
  1141. DP(BNX2X_MSG_SP, "PGLUE_B_REG_FLR_REQUEST_PF_7_0_CLR is 0x%x\n", val);
  1142. val = REG_RD(bp, PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER);
  1143. DP(BNX2X_MSG_SP, "PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER is 0x%x\n",
  1144. val);
  1145. }
  1146. static int bnx2x_pf_flr_clnup(struct bnx2x *bp)
  1147. {
  1148. u32 poll_cnt = bnx2x_flr_clnup_poll_count(bp);
  1149. DP(BNX2X_MSG_SP, "Cleanup after FLR PF[%d]\n", BP_ABS_FUNC(bp));
  1150. /* Re-enable PF target read access */
  1151. REG_WR(bp, PGLUE_B_REG_INTERNAL_PFID_ENABLE_TARGET_READ, 1);
  1152. /* Poll HW usage counters */
  1153. DP(BNX2X_MSG_SP, "Polling usage counters\n");
  1154. if (bnx2x_poll_hw_usage_counters(bp, poll_cnt))
  1155. return -EBUSY;
  1156. /* Zero the igu 'trailing edge' and 'leading edge' */
  1157. /* Send the FW cleanup command */
  1158. if (bnx2x_send_final_clnup(bp, (u8)BP_FUNC(bp), poll_cnt))
  1159. return -EBUSY;
  1160. /* ATC cleanup */
  1161. /* Verify TX hw is flushed */
  1162. bnx2x_tx_hw_flushed(bp, poll_cnt);
  1163. /* Wait 100ms (not adjusted according to platform) */
  1164. msleep(100);
  1165. /* Verify no pending pci transactions */
  1166. if (bnx2x_is_pcie_pending(bp->pdev))
  1167. BNX2X_ERR("PCIE Transactions still pending\n");
  1168. /* Debug */
  1169. bnx2x_hw_enable_status(bp);
  1170. /*
  1171. * Master enable - Due to WB DMAE writes performed before this
  1172. * register is re-initialized as part of the regular function init
  1173. */
  1174. REG_WR(bp, PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER, 1);
  1175. return 0;
  1176. }
  1177. static void bnx2x_hc_int_enable(struct bnx2x *bp)
  1178. {
  1179. int port = BP_PORT(bp);
  1180. u32 addr = port ? HC_REG_CONFIG_1 : HC_REG_CONFIG_0;
  1181. u32 val = REG_RD(bp, addr);
  1182. int msix = (bp->flags & USING_MSIX_FLAG) ? 1 : 0;
  1183. int msi = (bp->flags & USING_MSI_FLAG) ? 1 : 0;
  1184. if (msix) {
  1185. val &= ~(HC_CONFIG_0_REG_SINGLE_ISR_EN_0 |
  1186. HC_CONFIG_0_REG_INT_LINE_EN_0);
  1187. val |= (HC_CONFIG_0_REG_MSI_MSIX_INT_EN_0 |
  1188. HC_CONFIG_0_REG_ATTN_BIT_EN_0);
  1189. } else if (msi) {
  1190. val &= ~HC_CONFIG_0_REG_INT_LINE_EN_0;
  1191. val |= (HC_CONFIG_0_REG_SINGLE_ISR_EN_0 |
  1192. HC_CONFIG_0_REG_MSI_MSIX_INT_EN_0 |
  1193. HC_CONFIG_0_REG_ATTN_BIT_EN_0);
  1194. } else {
  1195. val |= (HC_CONFIG_0_REG_SINGLE_ISR_EN_0 |
  1196. HC_CONFIG_0_REG_MSI_MSIX_INT_EN_0 |
  1197. HC_CONFIG_0_REG_INT_LINE_EN_0 |
  1198. HC_CONFIG_0_REG_ATTN_BIT_EN_0);
  1199. if (!CHIP_IS_E1(bp)) {
  1200. DP(NETIF_MSG_INTR, "write %x to HC %d (addr 0x%x)\n",
  1201. val, port, addr);
  1202. REG_WR(bp, addr, val);
  1203. val &= ~HC_CONFIG_0_REG_MSI_MSIX_INT_EN_0;
  1204. }
  1205. }
  1206. if (CHIP_IS_E1(bp))
  1207. REG_WR(bp, HC_REG_INT_MASK + port*4, 0x1FFFF);
  1208. DP(NETIF_MSG_INTR, "write %x to HC %d (addr 0x%x) mode %s\n",
  1209. val, port, addr, (msix ? "MSI-X" : (msi ? "MSI" : "INTx")));
  1210. REG_WR(bp, addr, val);
  1211. /*
  1212. * Ensure that HC_CONFIG is written before leading/trailing edge config
  1213. */
  1214. mmiowb();
  1215. barrier();
  1216. if (!CHIP_IS_E1(bp)) {
  1217. /* init leading/trailing edge */
  1218. if (IS_MF(bp)) {
  1219. val = (0xee0f | (1 << (BP_VN(bp) + 4)));
  1220. if (bp->port.pmf)
  1221. /* enable nig and gpio3 attention */
  1222. val |= 0x1100;
  1223. } else
  1224. val = 0xffff;
  1225. REG_WR(bp, HC_REG_TRAILING_EDGE_0 + port*8, val);
  1226. REG_WR(bp, HC_REG_LEADING_EDGE_0 + port*8, val);
  1227. }
  1228. /* Make sure that interrupts are indeed enabled from here on */
  1229. mmiowb();
  1230. }
  1231. static void bnx2x_igu_int_enable(struct bnx2x *bp)
  1232. {
  1233. u32 val;
  1234. int msix = (bp->flags & USING_MSIX_FLAG) ? 1 : 0;
  1235. int msi = (bp->flags & USING_MSI_FLAG) ? 1 : 0;
  1236. val = REG_RD(bp, IGU_REG_PF_CONFIGURATION);
  1237. if (msix) {
  1238. val &= ~(IGU_PF_CONF_INT_LINE_EN |
  1239. IGU_PF_CONF_SINGLE_ISR_EN);
  1240. val |= (IGU_PF_CONF_FUNC_EN |
  1241. IGU_PF_CONF_MSI_MSIX_EN |
  1242. IGU_PF_CONF_ATTN_BIT_EN);
  1243. } else if (msi) {
  1244. val &= ~IGU_PF_CONF_INT_LINE_EN;
  1245. val |= (IGU_PF_CONF_FUNC_EN |
  1246. IGU_PF_CONF_MSI_MSIX_EN |
  1247. IGU_PF_CONF_ATTN_BIT_EN |
  1248. IGU_PF_CONF_SINGLE_ISR_EN);
  1249. } else {
  1250. val &= ~IGU_PF_CONF_MSI_MSIX_EN;
  1251. val |= (IGU_PF_CONF_FUNC_EN |
  1252. IGU_PF_CONF_INT_LINE_EN |
  1253. IGU_PF_CONF_ATTN_BIT_EN |
  1254. IGU_PF_CONF_SINGLE_ISR_EN);
  1255. }
  1256. DP(NETIF_MSG_INTR, "write 0x%x to IGU mode %s\n",
  1257. val, (msix ? "MSI-X" : (msi ? "MSI" : "INTx")));
  1258. REG_WR(bp, IGU_REG_PF_CONFIGURATION, val);
  1259. barrier();
  1260. /* init leading/trailing edge */
  1261. if (IS_MF(bp)) {
  1262. val = (0xee0f | (1 << (BP_VN(bp) + 4)));
  1263. if (bp->port.pmf)
  1264. /* enable nig and gpio3 attention */
  1265. val |= 0x1100;
  1266. } else
  1267. val = 0xffff;
  1268. REG_WR(bp, IGU_REG_TRAILING_EDGE_LATCH, val);
  1269. REG_WR(bp, IGU_REG_LEADING_EDGE_LATCH, val);
  1270. /* Make sure that interrupts are indeed enabled from here on */
  1271. mmiowb();
  1272. }
  1273. void bnx2x_int_enable(struct bnx2x *bp)
  1274. {
  1275. if (bp->common.int_block == INT_BLOCK_HC)
  1276. bnx2x_hc_int_enable(bp);
  1277. else
  1278. bnx2x_igu_int_enable(bp);
  1279. }
  1280. static void bnx2x_hc_int_disable(struct bnx2x *bp)
  1281. {
  1282. int port = BP_PORT(bp);
  1283. u32 addr = port ? HC_REG_CONFIG_1 : HC_REG_CONFIG_0;
  1284. u32 val = REG_RD(bp, addr);
  1285. /*
  1286. * in E1 we must use only PCI configuration space to disable
  1287. * MSI/MSIX capablility
  1288. * It's forbitten to disable IGU_PF_CONF_MSI_MSIX_EN in HC block
  1289. */
  1290. if (CHIP_IS_E1(bp)) {
  1291. /* Since IGU_PF_CONF_MSI_MSIX_EN still always on
  1292. * Use mask register to prevent from HC sending interrupts
  1293. * after we exit the function
  1294. */
  1295. REG_WR(bp, HC_REG_INT_MASK + port*4, 0);
  1296. val &= ~(HC_CONFIG_0_REG_SINGLE_ISR_EN_0 |
  1297. HC_CONFIG_0_REG_INT_LINE_EN_0 |
  1298. HC_CONFIG_0_REG_ATTN_BIT_EN_0);
  1299. } else
  1300. val &= ~(HC_CONFIG_0_REG_SINGLE_ISR_EN_0 |
  1301. HC_CONFIG_0_REG_MSI_MSIX_INT_EN_0 |
  1302. HC_CONFIG_0_REG_INT_LINE_EN_0 |
  1303. HC_CONFIG_0_REG_ATTN_BIT_EN_0);
  1304. DP(NETIF_MSG_INTR, "write %x to HC %d (addr 0x%x)\n",
  1305. val, port, addr);
  1306. /* flush all outstanding writes */
  1307. mmiowb();
  1308. REG_WR(bp, addr, val);
  1309. if (REG_RD(bp, addr) != val)
  1310. BNX2X_ERR("BUG! proper val not read from IGU!\n");
  1311. }
  1312. static void bnx2x_igu_int_disable(struct bnx2x *bp)
  1313. {
  1314. u32 val = REG_RD(bp, IGU_REG_PF_CONFIGURATION);
  1315. val &= ~(IGU_PF_CONF_MSI_MSIX_EN |
  1316. IGU_PF_CONF_INT_LINE_EN |
  1317. IGU_PF_CONF_ATTN_BIT_EN);
  1318. DP(NETIF_MSG_INTR, "write %x to IGU\n", val);
  1319. /* flush all outstanding writes */
  1320. mmiowb();
  1321. REG_WR(bp, IGU_REG_PF_CONFIGURATION, val);
  1322. if (REG_RD(bp, IGU_REG_PF_CONFIGURATION) != val)
  1323. BNX2X_ERR("BUG! proper val not read from IGU!\n");
  1324. }
  1325. void bnx2x_int_disable(struct bnx2x *bp)
  1326. {
  1327. if (bp->common.int_block == INT_BLOCK_HC)
  1328. bnx2x_hc_int_disable(bp);
  1329. else
  1330. bnx2x_igu_int_disable(bp);
  1331. }
  1332. void bnx2x_int_disable_sync(struct bnx2x *bp, int disable_hw)
  1333. {
  1334. int msix = (bp->flags & USING_MSIX_FLAG) ? 1 : 0;
  1335. int i, offset;
  1336. if (disable_hw)
  1337. /* prevent the HW from sending interrupts */
  1338. bnx2x_int_disable(bp);
  1339. /* make sure all ISRs are done */
  1340. if (msix) {
  1341. synchronize_irq(bp->msix_table[0].vector);
  1342. offset = 1;
  1343. #ifdef BCM_CNIC
  1344. offset++;
  1345. #endif
  1346. for_each_eth_queue(bp, i)
  1347. synchronize_irq(bp->msix_table[offset++].vector);
  1348. } else
  1349. synchronize_irq(bp->pdev->irq);
  1350. /* make sure sp_task is not running */
  1351. cancel_delayed_work(&bp->sp_task);
  1352. cancel_delayed_work(&bp->period_task);
  1353. flush_workqueue(bnx2x_wq);
  1354. }
  1355. /* fast path */
  1356. /*
  1357. * General service functions
  1358. */
  1359. /* Return true if succeeded to acquire the lock */
  1360. static bool bnx2x_trylock_hw_lock(struct bnx2x *bp, u32 resource)
  1361. {
  1362. u32 lock_status;
  1363. u32 resource_bit = (1 << resource);
  1364. int func = BP_FUNC(bp);
  1365. u32 hw_lock_control_reg;
  1366. DP(NETIF_MSG_HW, "Trying to take a lock on resource %d\n", resource);
  1367. /* Validating that the resource is within range */
  1368. if (resource > HW_LOCK_MAX_RESOURCE_VALUE) {
  1369. DP(NETIF_MSG_HW,
  1370. "resource(0x%x) > HW_LOCK_MAX_RESOURCE_VALUE(0x%x)\n",
  1371. resource, HW_LOCK_MAX_RESOURCE_VALUE);
  1372. return false;
  1373. }
  1374. if (func <= 5)
  1375. hw_lock_control_reg = (MISC_REG_DRIVER_CONTROL_1 + func*8);
  1376. else
  1377. hw_lock_control_reg =
  1378. (MISC_REG_DRIVER_CONTROL_7 + (func - 6)*8);
  1379. /* Try to acquire the lock */
  1380. REG_WR(bp, hw_lock_control_reg + 4, resource_bit);
  1381. lock_status = REG_RD(bp, hw_lock_control_reg);
  1382. if (lock_status & resource_bit)
  1383. return true;
  1384. DP(NETIF_MSG_HW, "Failed to get a lock on resource %d\n", resource);
  1385. return false;
  1386. }
  1387. /**
  1388. * bnx2x_get_leader_lock_resource - get the recovery leader resource id
  1389. *
  1390. * @bp: driver handle
  1391. *
  1392. * Returns the recovery leader resource id according to the engine this function
  1393. * belongs to. Currently only only 2 engines is supported.
  1394. */
  1395. static inline int bnx2x_get_leader_lock_resource(struct bnx2x *bp)
  1396. {
  1397. if (BP_PATH(bp))
  1398. return HW_LOCK_RESOURCE_RECOVERY_LEADER_1;
  1399. else
  1400. return HW_LOCK_RESOURCE_RECOVERY_LEADER_0;
  1401. }
  1402. /**
  1403. * bnx2x_trylock_leader_lock- try to aquire a leader lock.
  1404. *
  1405. * @bp: driver handle
  1406. *
  1407. * Tries to aquire a leader lock for cuurent engine.
  1408. */
  1409. static inline bool bnx2x_trylock_leader_lock(struct bnx2x *bp)
  1410. {
  1411. return bnx2x_trylock_hw_lock(bp, bnx2x_get_leader_lock_resource(bp));
  1412. }
  1413. #ifdef BCM_CNIC
  1414. static void bnx2x_cnic_cfc_comp(struct bnx2x *bp, int cid, u8 err);
  1415. #endif
  1416. void bnx2x_sp_event(struct bnx2x_fastpath *fp, union eth_rx_cqe *rr_cqe)
  1417. {
  1418. struct bnx2x *bp = fp->bp;
  1419. int cid = SW_CID(rr_cqe->ramrod_cqe.conn_and_cmd_data);
  1420. int command = CQE_CMD(rr_cqe->ramrod_cqe.conn_and_cmd_data);
  1421. enum bnx2x_queue_cmd drv_cmd = BNX2X_Q_CMD_MAX;
  1422. struct bnx2x_queue_sp_obj *q_obj = &fp->q_obj;
  1423. DP(BNX2X_MSG_SP,
  1424. "fp %d cid %d got ramrod #%d state is %x type is %d\n",
  1425. fp->index, cid, command, bp->state,
  1426. rr_cqe->ramrod_cqe.ramrod_type);
  1427. switch (command) {
  1428. case (RAMROD_CMD_ID_ETH_CLIENT_UPDATE):
  1429. DP(BNX2X_MSG_SP, "got UPDATE ramrod. CID %d\n", cid);
  1430. drv_cmd = BNX2X_Q_CMD_UPDATE;
  1431. break;
  1432. case (RAMROD_CMD_ID_ETH_CLIENT_SETUP):
  1433. DP(BNX2X_MSG_SP, "got MULTI[%d] setup ramrod\n", cid);
  1434. drv_cmd = BNX2X_Q_CMD_SETUP;
  1435. break;
  1436. case (RAMROD_CMD_ID_ETH_TX_QUEUE_SETUP):
  1437. DP(NETIF_MSG_IFUP, "got MULTI[%d] tx-only setup ramrod\n", cid);
  1438. drv_cmd = BNX2X_Q_CMD_SETUP_TX_ONLY;
  1439. break;
  1440. case (RAMROD_CMD_ID_ETH_HALT):
  1441. DP(BNX2X_MSG_SP, "got MULTI[%d] halt ramrod\n", cid);
  1442. drv_cmd = BNX2X_Q_CMD_HALT;
  1443. break;
  1444. case (RAMROD_CMD_ID_ETH_TERMINATE):
  1445. DP(BNX2X_MSG_SP, "got MULTI[%d] teminate ramrod\n", cid);
  1446. drv_cmd = BNX2X_Q_CMD_TERMINATE;
  1447. break;
  1448. case (RAMROD_CMD_ID_ETH_EMPTY):
  1449. DP(BNX2X_MSG_SP, "got MULTI[%d] empty ramrod\n", cid);
  1450. drv_cmd = BNX2X_Q_CMD_EMPTY;
  1451. break;
  1452. default:
  1453. BNX2X_ERR("unexpected MC reply (%d) on fp[%d]\n",
  1454. command, fp->index);
  1455. return;
  1456. }
  1457. if ((drv_cmd != BNX2X_Q_CMD_MAX) &&
  1458. q_obj->complete_cmd(bp, q_obj, drv_cmd))
  1459. /* q_obj->complete_cmd() failure means that this was
  1460. * an unexpected completion.
  1461. *
  1462. * In this case we don't want to increase the bp->spq_left
  1463. * because apparently we haven't sent this command the first
  1464. * place.
  1465. */
  1466. #ifdef BNX2X_STOP_ON_ERROR
  1467. bnx2x_panic();
  1468. #else
  1469. return;
  1470. #endif
  1471. smp_mb__before_atomic_inc();
  1472. atomic_inc(&bp->cq_spq_left);
  1473. /* push the change in bp->spq_left and towards the memory */
  1474. smp_mb__after_atomic_inc();
  1475. DP(BNX2X_MSG_SP, "bp->cq_spq_left %x\n", atomic_read(&bp->cq_spq_left));
  1476. return;
  1477. }
  1478. void bnx2x_update_rx_prod(struct bnx2x *bp, struct bnx2x_fastpath *fp,
  1479. u16 bd_prod, u16 rx_comp_prod, u16 rx_sge_prod)
  1480. {
  1481. u32 start = BAR_USTRORM_INTMEM + fp->ustorm_rx_prods_offset;
  1482. bnx2x_update_rx_prod_gen(bp, fp, bd_prod, rx_comp_prod, rx_sge_prod,
  1483. start);
  1484. }
  1485. irqreturn_t bnx2x_interrupt(int irq, void *dev_instance)
  1486. {
  1487. struct bnx2x *bp = netdev_priv(dev_instance);
  1488. u16 status = bnx2x_ack_int(bp);
  1489. u16 mask;
  1490. int i;
  1491. u8 cos;
  1492. /* Return here if interrupt is shared and it's not for us */
  1493. if (unlikely(status == 0)) {
  1494. DP(NETIF_MSG_INTR, "not our interrupt!\n");
  1495. return IRQ_NONE;
  1496. }
  1497. DP(NETIF_MSG_INTR, "got an interrupt status 0x%x\n", status);
  1498. #ifdef BNX2X_STOP_ON_ERROR
  1499. if (unlikely(bp->panic))
  1500. return IRQ_HANDLED;
  1501. #endif
  1502. for_each_eth_queue(bp, i) {
  1503. struct bnx2x_fastpath *fp = &bp->fp[i];
  1504. mask = 0x2 << (fp->index + CNIC_PRESENT);
  1505. if (status & mask) {
  1506. /* Handle Rx or Tx according to SB id */
  1507. prefetch(fp->rx_cons_sb);
  1508. for_each_cos_in_tx_queue(fp, cos)
  1509. prefetch(fp->txdata[cos].tx_cons_sb);
  1510. prefetch(&fp->sb_running_index[SM_RX_ID]);
  1511. napi_schedule(&bnx2x_fp(bp, fp->index, napi));
  1512. status &= ~mask;
  1513. }
  1514. }
  1515. #ifdef BCM_CNIC
  1516. mask = 0x2;
  1517. if (status & (mask | 0x1)) {
  1518. struct cnic_ops *c_ops = NULL;
  1519. if (likely(bp->state == BNX2X_STATE_OPEN)) {
  1520. rcu_read_lock();
  1521. c_ops = rcu_dereference(bp->cnic_ops);
  1522. if (c_ops)
  1523. c_ops->cnic_handler(bp->cnic_data, NULL);
  1524. rcu_read_unlock();
  1525. }
  1526. status &= ~mask;
  1527. }
  1528. #endif
  1529. if (unlikely(status & 0x1)) {
  1530. queue_delayed_work(bnx2x_wq, &bp->sp_task, 0);
  1531. status &= ~0x1;
  1532. if (!status)
  1533. return IRQ_HANDLED;
  1534. }
  1535. if (unlikely(status))
  1536. DP(NETIF_MSG_INTR, "got an unknown interrupt! (status 0x%x)\n",
  1537. status);
  1538. return IRQ_HANDLED;
  1539. }
  1540. /* Link */
  1541. /*
  1542. * General service functions
  1543. */
  1544. int bnx2x_acquire_hw_lock(struct bnx2x *bp, u32 resource)
  1545. {
  1546. u32 lock_status;
  1547. u32 resource_bit = (1 << resource);
  1548. int func = BP_FUNC(bp);
  1549. u32 hw_lock_control_reg;
  1550. int cnt;
  1551. /* Validating that the resource is within range */
  1552. if (resource > HW_LOCK_MAX_RESOURCE_VALUE) {
  1553. DP(NETIF_MSG_HW,
  1554. "resource(0x%x) > HW_LOCK_MAX_RESOURCE_VALUE(0x%x)\n",
  1555. resource, HW_LOCK_MAX_RESOURCE_VALUE);
  1556. return -EINVAL;
  1557. }
  1558. if (func <= 5) {
  1559. hw_lock_control_reg = (MISC_REG_DRIVER_CONTROL_1 + func*8);
  1560. } else {
  1561. hw_lock_control_reg =
  1562. (MISC_REG_DRIVER_CONTROL_7 + (func - 6)*8);
  1563. }
  1564. /* Validating that the resource is not already taken */
  1565. lock_status = REG_RD(bp, hw_lock_control_reg);
  1566. if (lock_status & resource_bit) {
  1567. DP(NETIF_MSG_HW, "lock_status 0x%x resource_bit 0x%x\n",
  1568. lock_status, resource_bit);
  1569. return -EEXIST;
  1570. }
  1571. /* Try for 5 second every 5ms */
  1572. for (cnt = 0; cnt < 1000; cnt++) {
  1573. /* Try to acquire the lock */
  1574. REG_WR(bp, hw_lock_control_reg + 4, resource_bit);
  1575. lock_status = REG_RD(bp, hw_lock_control_reg);
  1576. if (lock_status & resource_bit)
  1577. return 0;
  1578. msleep(5);
  1579. }
  1580. DP(NETIF_MSG_HW, "Timeout\n");
  1581. return -EAGAIN;
  1582. }
  1583. int bnx2x_release_leader_lock(struct bnx2x *bp)
  1584. {
  1585. return bnx2x_release_hw_lock(bp, bnx2x_get_leader_lock_resource(bp));
  1586. }
  1587. int bnx2x_release_hw_lock(struct bnx2x *bp, u32 resource)
  1588. {
  1589. u32 lock_status;
  1590. u32 resource_bit = (1 << resource);
  1591. int func = BP_FUNC(bp);
  1592. u32 hw_lock_control_reg;
  1593. DP(NETIF_MSG_HW, "Releasing a lock on resource %d\n", resource);
  1594. /* Validating that the resource is within range */
  1595. if (resource > HW_LOCK_MAX_RESOURCE_VALUE) {
  1596. DP(NETIF_MSG_HW,
  1597. "resource(0x%x) > HW_LOCK_MAX_RESOURCE_VALUE(0x%x)\n",
  1598. resource, HW_LOCK_MAX_RESOURCE_VALUE);
  1599. return -EINVAL;
  1600. }
  1601. if (func <= 5) {
  1602. hw_lock_control_reg = (MISC_REG_DRIVER_CONTROL_1 + func*8);
  1603. } else {
  1604. hw_lock_control_reg =
  1605. (MISC_REG_DRIVER_CONTROL_7 + (func - 6)*8);
  1606. }
  1607. /* Validating that the resource is currently taken */
  1608. lock_status = REG_RD(bp, hw_lock_control_reg);
  1609. if (!(lock_status & resource_bit)) {
  1610. DP(NETIF_MSG_HW, "lock_status 0x%x resource_bit 0x%x\n",
  1611. lock_status, resource_bit);
  1612. return -EFAULT;
  1613. }
  1614. REG_WR(bp, hw_lock_control_reg, resource_bit);
  1615. return 0;
  1616. }
  1617. int bnx2x_get_gpio(struct bnx2x *bp, int gpio_num, u8 port)
  1618. {
  1619. /* The GPIO should be swapped if swap register is set and active */
  1620. int gpio_port = (REG_RD(bp, NIG_REG_PORT_SWAP) &&
  1621. REG_RD(bp, NIG_REG_STRAP_OVERRIDE)) ^ port;
  1622. int gpio_shift = gpio_num +
  1623. (gpio_port ? MISC_REGISTERS_GPIO_PORT_SHIFT : 0);
  1624. u32 gpio_mask = (1 << gpio_shift);
  1625. u32 gpio_reg;
  1626. int value;
  1627. if (gpio_num > MISC_REGISTERS_GPIO_3) {
  1628. BNX2X_ERR("Invalid GPIO %d\n", gpio_num);
  1629. return -EINVAL;
  1630. }
  1631. /* read GPIO value */
  1632. gpio_reg = REG_RD(bp, MISC_REG_GPIO);
  1633. /* get the requested pin value */
  1634. if ((gpio_reg & gpio_mask) == gpio_mask)
  1635. value = 1;
  1636. else
  1637. value = 0;
  1638. DP(NETIF_MSG_LINK, "pin %d value 0x%x\n", gpio_num, value);
  1639. return value;
  1640. }
  1641. int bnx2x_set_gpio(struct bnx2x *bp, int gpio_num, u32 mode, u8 port)
  1642. {
  1643. /* The GPIO should be swapped if swap register is set and active */
  1644. int gpio_port = (REG_RD(bp, NIG_REG_PORT_SWAP) &&
  1645. REG_RD(bp, NIG_REG_STRAP_OVERRIDE)) ^ port;
  1646. int gpio_shift = gpio_num +
  1647. (gpio_port ? MISC_REGISTERS_GPIO_PORT_SHIFT : 0);
  1648. u32 gpio_mask = (1 << gpio_shift);
  1649. u32 gpio_reg;
  1650. if (gpio_num > MISC_REGISTERS_GPIO_3) {
  1651. BNX2X_ERR("Invalid GPIO %d\n", gpio_num);
  1652. return -EINVAL;
  1653. }
  1654. bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_GPIO);
  1655. /* read GPIO and mask except the float bits */
  1656. gpio_reg = (REG_RD(bp, MISC_REG_GPIO) & MISC_REGISTERS_GPIO_FLOAT);
  1657. switch (mode) {
  1658. case MISC_REGISTERS_GPIO_OUTPUT_LOW:
  1659. DP(NETIF_MSG_LINK, "Set GPIO %d (shift %d) -> output low\n",
  1660. gpio_num, gpio_shift);
  1661. /* clear FLOAT and set CLR */
  1662. gpio_reg &= ~(gpio_mask << MISC_REGISTERS_GPIO_FLOAT_POS);
  1663. gpio_reg |= (gpio_mask << MISC_REGISTERS_GPIO_CLR_POS);
  1664. break;
  1665. case MISC_REGISTERS_GPIO_OUTPUT_HIGH:
  1666. DP(NETIF_MSG_LINK, "Set GPIO %d (shift %d) -> output high\n",
  1667. gpio_num, gpio_shift);
  1668. /* clear FLOAT and set SET */
  1669. gpio_reg &= ~(gpio_mask << MISC_REGISTERS_GPIO_FLOAT_POS);
  1670. gpio_reg |= (gpio_mask << MISC_REGISTERS_GPIO_SET_POS);
  1671. break;
  1672. case MISC_REGISTERS_GPIO_INPUT_HI_Z:
  1673. DP(NETIF_MSG_LINK, "Set GPIO %d (shift %d) -> input\n",
  1674. gpio_num, gpio_shift);
  1675. /* set FLOAT */
  1676. gpio_reg |= (gpio_mask << MISC_REGISTERS_GPIO_FLOAT_POS);
  1677. break;
  1678. default:
  1679. break;
  1680. }
  1681. REG_WR(bp, MISC_REG_GPIO, gpio_reg);
  1682. bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_GPIO);
  1683. return 0;
  1684. }
  1685. int bnx2x_set_mult_gpio(struct bnx2x *bp, u8 pins, u32 mode)
  1686. {
  1687. u32 gpio_reg = 0;
  1688. int rc = 0;
  1689. /* Any port swapping should be handled by caller. */
  1690. bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_GPIO);
  1691. /* read GPIO and mask except the float bits */
  1692. gpio_reg = REG_RD(bp, MISC_REG_GPIO);
  1693. gpio_reg &= ~(pins << MISC_REGISTERS_GPIO_FLOAT_POS);
  1694. gpio_reg &= ~(pins << MISC_REGISTERS_GPIO_CLR_POS);
  1695. gpio_reg &= ~(pins << MISC_REGISTERS_GPIO_SET_POS);
  1696. switch (mode) {
  1697. case MISC_REGISTERS_GPIO_OUTPUT_LOW:
  1698. DP(NETIF_MSG_LINK, "Set GPIO 0x%x -> output low\n", pins);
  1699. /* set CLR */
  1700. gpio_reg |= (pins << MISC_REGISTERS_GPIO_CLR_POS);
  1701. break;
  1702. case MISC_REGISTERS_GPIO_OUTPUT_HIGH:
  1703. DP(NETIF_MSG_LINK, "Set GPIO 0x%x -> output high\n", pins);
  1704. /* set SET */
  1705. gpio_reg |= (pins << MISC_REGISTERS_GPIO_SET_POS);
  1706. break;
  1707. case MISC_REGISTERS_GPIO_INPUT_HI_Z:
  1708. DP(NETIF_MSG_LINK, "Set GPIO 0x%x -> input\n", pins);
  1709. /* set FLOAT */
  1710. gpio_reg |= (pins << MISC_REGISTERS_GPIO_FLOAT_POS);
  1711. break;
  1712. default:
  1713. BNX2X_ERR("Invalid GPIO mode assignment %d\n", mode);
  1714. rc = -EINVAL;
  1715. break;
  1716. }
  1717. if (rc == 0)
  1718. REG_WR(bp, MISC_REG_GPIO, gpio_reg);
  1719. bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_GPIO);
  1720. return rc;
  1721. }
  1722. int bnx2x_set_gpio_int(struct bnx2x *bp, int gpio_num, u32 mode, u8 port)
  1723. {
  1724. /* The GPIO should be swapped if swap register is set and active */
  1725. int gpio_port = (REG_RD(bp, NIG_REG_PORT_SWAP) &&
  1726. REG_RD(bp, NIG_REG_STRAP_OVERRIDE)) ^ port;
  1727. int gpio_shift = gpio_num +
  1728. (gpio_port ? MISC_REGISTERS_GPIO_PORT_SHIFT : 0);
  1729. u32 gpio_mask = (1 << gpio_shift);
  1730. u32 gpio_reg;
  1731. if (gpio_num > MISC_REGISTERS_GPIO_3) {
  1732. BNX2X_ERR("Invalid GPIO %d\n", gpio_num);
  1733. return -EINVAL;
  1734. }
  1735. bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_GPIO);
  1736. /* read GPIO int */
  1737. gpio_reg = REG_RD(bp, MISC_REG_GPIO_INT);
  1738. switch (mode) {
  1739. case MISC_REGISTERS_GPIO_INT_OUTPUT_CLR:
  1740. DP(NETIF_MSG_LINK, "Clear GPIO INT %d (shift %d) -> "
  1741. "output low\n", gpio_num, gpio_shift);
  1742. /* clear SET and set CLR */
  1743. gpio_reg &= ~(gpio_mask << MISC_REGISTERS_GPIO_INT_SET_POS);
  1744. gpio_reg |= (gpio_mask << MISC_REGISTERS_GPIO_INT_CLR_POS);
  1745. break;
  1746. case MISC_REGISTERS_GPIO_INT_OUTPUT_SET:
  1747. DP(NETIF_MSG_LINK, "Set GPIO INT %d (shift %d) -> "
  1748. "output high\n", gpio_num, gpio_shift);
  1749. /* clear CLR and set SET */
  1750. gpio_reg &= ~(gpio_mask << MISC_REGISTERS_GPIO_INT_CLR_POS);
  1751. gpio_reg |= (gpio_mask << MISC_REGISTERS_GPIO_INT_SET_POS);
  1752. break;
  1753. default:
  1754. break;
  1755. }
  1756. REG_WR(bp, MISC_REG_GPIO_INT, gpio_reg);
  1757. bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_GPIO);
  1758. return 0;
  1759. }
  1760. static int bnx2x_set_spio(struct bnx2x *bp, int spio_num, u32 mode)
  1761. {
  1762. u32 spio_mask = (1 << spio_num);
  1763. u32 spio_reg;
  1764. if ((spio_num < MISC_REGISTERS_SPIO_4) ||
  1765. (spio_num > MISC_REGISTERS_SPIO_7)) {
  1766. BNX2X_ERR("Invalid SPIO %d\n", spio_num);
  1767. return -EINVAL;
  1768. }
  1769. bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_SPIO);
  1770. /* read SPIO and mask except the float bits */
  1771. spio_reg = (REG_RD(bp, MISC_REG_SPIO) & MISC_REGISTERS_SPIO_FLOAT);
  1772. switch (mode) {
  1773. case MISC_REGISTERS_SPIO_OUTPUT_LOW:
  1774. DP(NETIF_MSG_LINK, "Set SPIO %d -> output low\n", spio_num);
  1775. /* clear FLOAT and set CLR */
  1776. spio_reg &= ~(spio_mask << MISC_REGISTERS_SPIO_FLOAT_POS);
  1777. spio_reg |= (spio_mask << MISC_REGISTERS_SPIO_CLR_POS);
  1778. break;
  1779. case MISC_REGISTERS_SPIO_OUTPUT_HIGH:
  1780. DP(NETIF_MSG_LINK, "Set SPIO %d -> output high\n", spio_num);
  1781. /* clear FLOAT and set SET */
  1782. spio_reg &= ~(spio_mask << MISC_REGISTERS_SPIO_FLOAT_POS);
  1783. spio_reg |= (spio_mask << MISC_REGISTERS_SPIO_SET_POS);
  1784. break;
  1785. case MISC_REGISTERS_SPIO_INPUT_HI_Z:
  1786. DP(NETIF_MSG_LINK, "Set SPIO %d -> input\n", spio_num);
  1787. /* set FLOAT */
  1788. spio_reg |= (spio_mask << MISC_REGISTERS_SPIO_FLOAT_POS);
  1789. break;
  1790. default:
  1791. break;
  1792. }
  1793. REG_WR(bp, MISC_REG_SPIO, spio_reg);
  1794. bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_SPIO);
  1795. return 0;
  1796. }
  1797. void bnx2x_calc_fc_adv(struct bnx2x *bp)
  1798. {
  1799. u8 cfg_idx = bnx2x_get_link_cfg_idx(bp);
  1800. switch (bp->link_vars.ieee_fc &
  1801. MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_MASK) {
  1802. case MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_NONE:
  1803. bp->port.advertising[cfg_idx] &= ~(ADVERTISED_Asym_Pause |
  1804. ADVERTISED_Pause);
  1805. break;
  1806. case MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH:
  1807. bp->port.advertising[cfg_idx] |= (ADVERTISED_Asym_Pause |
  1808. ADVERTISED_Pause);
  1809. break;
  1810. case MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC:
  1811. bp->port.advertising[cfg_idx] |= ADVERTISED_Asym_Pause;
  1812. break;
  1813. default:
  1814. bp->port.advertising[cfg_idx] &= ~(ADVERTISED_Asym_Pause |
  1815. ADVERTISED_Pause);
  1816. break;
  1817. }
  1818. }
  1819. u8 bnx2x_initial_phy_init(struct bnx2x *bp, int load_mode)
  1820. {
  1821. if (!BP_NOMCP(bp)) {
  1822. u8 rc;
  1823. int cfx_idx = bnx2x_get_link_cfg_idx(bp);
  1824. u16 req_line_speed = bp->link_params.req_line_speed[cfx_idx];
  1825. /*
  1826. * Initialize link parameters structure variables
  1827. * It is recommended to turn off RX FC for jumbo frames
  1828. * for better performance
  1829. */
  1830. if (CHIP_IS_E1x(bp) && (bp->dev->mtu > 5000))
  1831. bp->link_params.req_fc_auto_adv = BNX2X_FLOW_CTRL_TX;
  1832. else
  1833. bp->link_params.req_fc_auto_adv = BNX2X_FLOW_CTRL_BOTH;
  1834. bnx2x_acquire_phy_lock(bp);
  1835. if (load_mode == LOAD_DIAG) {
  1836. struct link_params *lp = &bp->link_params;
  1837. lp->loopback_mode = LOOPBACK_XGXS;
  1838. /* do PHY loopback at 10G speed, if possible */
  1839. if (lp->req_line_speed[cfx_idx] < SPEED_10000) {
  1840. if (lp->speed_cap_mask[cfx_idx] &
  1841. PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)
  1842. lp->req_line_speed[cfx_idx] =
  1843. SPEED_10000;
  1844. else
  1845. lp->req_line_speed[cfx_idx] =
  1846. SPEED_1000;
  1847. }
  1848. }
  1849. rc = bnx2x_phy_init(&bp->link_params, &bp->link_vars);
  1850. bnx2x_release_phy_lock(bp);
  1851. bnx2x_calc_fc_adv(bp);
  1852. if (CHIP_REV_IS_SLOW(bp) && bp->link_vars.link_up) {
  1853. bnx2x_stats_handle(bp, STATS_EVENT_LINK_UP);
  1854. bnx2x_link_report(bp);
  1855. } else
  1856. queue_delayed_work(bnx2x_wq, &bp->period_task, 0);
  1857. bp->link_params.req_line_speed[cfx_idx] = req_line_speed;
  1858. return rc;
  1859. }
  1860. BNX2X_ERR("Bootcode is missing - can not initialize link\n");
  1861. return -EINVAL;
  1862. }
  1863. void bnx2x_link_set(struct bnx2x *bp)
  1864. {
  1865. if (!BP_NOMCP(bp)) {
  1866. bnx2x_acquire_phy_lock(bp);
  1867. bnx2x_link_reset(&bp->link_params, &bp->link_vars, 1);
  1868. bnx2x_phy_init(&bp->link_params, &bp->link_vars);
  1869. bnx2x_release_phy_lock(bp);
  1870. bnx2x_calc_fc_adv(bp);
  1871. } else
  1872. BNX2X_ERR("Bootcode is missing - can not set link\n");
  1873. }
  1874. static void bnx2x__link_reset(struct bnx2x *bp)
  1875. {
  1876. if (!BP_NOMCP(bp)) {
  1877. bnx2x_acquire_phy_lock(bp);
  1878. bnx2x_link_reset(&bp->link_params, &bp->link_vars, 1);
  1879. bnx2x_release_phy_lock(bp);
  1880. } else
  1881. BNX2X_ERR("Bootcode is missing - can not reset link\n");
  1882. }
  1883. u8 bnx2x_link_test(struct bnx2x *bp, u8 is_serdes)
  1884. {
  1885. u8 rc = 0;
  1886. if (!BP_NOMCP(bp)) {
  1887. bnx2x_acquire_phy_lock(bp);
  1888. rc = bnx2x_test_link(&bp->link_params, &bp->link_vars,
  1889. is_serdes);
  1890. bnx2x_release_phy_lock(bp);
  1891. } else
  1892. BNX2X_ERR("Bootcode is missing - can not test link\n");
  1893. return rc;
  1894. }
  1895. static void bnx2x_init_port_minmax(struct bnx2x *bp)
  1896. {
  1897. u32 r_param = bp->link_vars.line_speed / 8;
  1898. u32 fair_periodic_timeout_usec;
  1899. u32 t_fair;
  1900. memset(&(bp->cmng.rs_vars), 0,
  1901. sizeof(struct rate_shaping_vars_per_port));
  1902. memset(&(bp->cmng.fair_vars), 0, sizeof(struct fairness_vars_per_port));
  1903. /* 100 usec in SDM ticks = 25 since each tick is 4 usec */
  1904. bp->cmng.rs_vars.rs_periodic_timeout = RS_PERIODIC_TIMEOUT_USEC / 4;
  1905. /* this is the threshold below which no timer arming will occur
  1906. 1.25 coefficient is for the threshold to be a little bigger
  1907. than the real time, to compensate for timer in-accuracy */
  1908. bp->cmng.rs_vars.rs_threshold =
  1909. (RS_PERIODIC_TIMEOUT_USEC * r_param * 5) / 4;
  1910. /* resolution of fairness timer */
  1911. fair_periodic_timeout_usec = QM_ARB_BYTES / r_param;
  1912. /* for 10G it is 1000usec. for 1G it is 10000usec. */
  1913. t_fair = T_FAIR_COEF / bp->link_vars.line_speed;
  1914. /* this is the threshold below which we won't arm the timer anymore */
  1915. bp->cmng.fair_vars.fair_threshold = QM_ARB_BYTES;
  1916. /* we multiply by 1e3/8 to get bytes/msec.
  1917. We don't want the credits to pass a credit
  1918. of the t_fair*FAIR_MEM (algorithm resolution) */
  1919. bp->cmng.fair_vars.upper_bound = r_param * t_fair * FAIR_MEM;
  1920. /* since each tick is 4 usec */
  1921. bp->cmng.fair_vars.fairness_timeout = fair_periodic_timeout_usec / 4;
  1922. }
  1923. /* Calculates the sum of vn_min_rates.
  1924. It's needed for further normalizing of the min_rates.
  1925. Returns:
  1926. sum of vn_min_rates.
  1927. or
  1928. 0 - if all the min_rates are 0.
  1929. In the later case fainess algorithm should be deactivated.
  1930. If not all min_rates are zero then those that are zeroes will be set to 1.
  1931. */
  1932. static void bnx2x_calc_vn_weight_sum(struct bnx2x *bp)
  1933. {
  1934. int all_zero = 1;
  1935. int vn;
  1936. bp->vn_weight_sum = 0;
  1937. for (vn = VN_0; vn < BP_MAX_VN_NUM(bp); vn++) {
  1938. u32 vn_cfg = bp->mf_config[vn];
  1939. u32 vn_min_rate = ((vn_cfg & FUNC_MF_CFG_MIN_BW_MASK) >>
  1940. FUNC_MF_CFG_MIN_BW_SHIFT) * 100;
  1941. /* Skip hidden vns */
  1942. if (vn_cfg & FUNC_MF_CFG_FUNC_HIDE)
  1943. continue;
  1944. /* If min rate is zero - set it to 1 */
  1945. if (!vn_min_rate)
  1946. vn_min_rate = DEF_MIN_RATE;
  1947. else
  1948. all_zero = 0;
  1949. bp->vn_weight_sum += vn_min_rate;
  1950. }
  1951. /* if ETS or all min rates are zeros - disable fairness */
  1952. if (BNX2X_IS_ETS_ENABLED(bp)) {
  1953. bp->cmng.flags.cmng_enables &=
  1954. ~CMNG_FLAGS_PER_PORT_FAIRNESS_VN;
  1955. DP(NETIF_MSG_IFUP, "Fairness will be disabled due to ETS\n");
  1956. } else if (all_zero) {
  1957. bp->cmng.flags.cmng_enables &=
  1958. ~CMNG_FLAGS_PER_PORT_FAIRNESS_VN;
  1959. DP(NETIF_MSG_IFUP, "All MIN values are zeroes"
  1960. " fairness will be disabled\n");
  1961. } else
  1962. bp->cmng.flags.cmng_enables |=
  1963. CMNG_FLAGS_PER_PORT_FAIRNESS_VN;
  1964. }
  1965. static void bnx2x_init_vn_minmax(struct bnx2x *bp, int vn)
  1966. {
  1967. struct rate_shaping_vars_per_vn m_rs_vn;
  1968. struct fairness_vars_per_vn m_fair_vn;
  1969. u32 vn_cfg = bp->mf_config[vn];
  1970. int func = func_by_vn(bp, vn);
  1971. u16 vn_min_rate, vn_max_rate;
  1972. int i;
  1973. /* If function is hidden - set min and max to zeroes */
  1974. if (vn_cfg & FUNC_MF_CFG_FUNC_HIDE) {
  1975. vn_min_rate = 0;
  1976. vn_max_rate = 0;
  1977. } else {
  1978. u32 maxCfg = bnx2x_extract_max_cfg(bp, vn_cfg);
  1979. vn_min_rate = ((vn_cfg & FUNC_MF_CFG_MIN_BW_MASK) >>
  1980. FUNC_MF_CFG_MIN_BW_SHIFT) * 100;
  1981. /* If fairness is enabled (not all min rates are zeroes) and
  1982. if current min rate is zero - set it to 1.
  1983. This is a requirement of the algorithm. */
  1984. if (bp->vn_weight_sum && (vn_min_rate == 0))
  1985. vn_min_rate = DEF_MIN_RATE;
  1986. if (IS_MF_SI(bp))
  1987. /* maxCfg in percents of linkspeed */
  1988. vn_max_rate = (bp->link_vars.line_speed * maxCfg) / 100;
  1989. else
  1990. /* maxCfg is absolute in 100Mb units */
  1991. vn_max_rate = maxCfg * 100;
  1992. }
  1993. DP(NETIF_MSG_IFUP,
  1994. "func %d: vn_min_rate %d vn_max_rate %d vn_weight_sum %d\n",
  1995. func, vn_min_rate, vn_max_rate, bp->vn_weight_sum);
  1996. memset(&m_rs_vn, 0, sizeof(struct rate_shaping_vars_per_vn));
  1997. memset(&m_fair_vn, 0, sizeof(struct fairness_vars_per_vn));
  1998. /* global vn counter - maximal Mbps for this vn */
  1999. m_rs_vn.vn_counter.rate = vn_max_rate;
  2000. /* quota - number of bytes transmitted in this period */
  2001. m_rs_vn.vn_counter.quota =
  2002. (vn_max_rate * RS_PERIODIC_TIMEOUT_USEC) / 8;
  2003. if (bp->vn_weight_sum) {
  2004. /* credit for each period of the fairness algorithm:
  2005. number of bytes in T_FAIR (the vn share the port rate).
  2006. vn_weight_sum should not be larger than 10000, thus
  2007. T_FAIR_COEF / (8 * vn_weight_sum) will always be greater
  2008. than zero */
  2009. m_fair_vn.vn_credit_delta =
  2010. max_t(u32, (vn_min_rate * (T_FAIR_COEF /
  2011. (8 * bp->vn_weight_sum))),
  2012. (bp->cmng.fair_vars.fair_threshold +
  2013. MIN_ABOVE_THRESH));
  2014. DP(NETIF_MSG_IFUP, "m_fair_vn.vn_credit_delta %d\n",
  2015. m_fair_vn.vn_credit_delta);
  2016. }
  2017. /* Store it to internal memory */
  2018. for (i = 0; i < sizeof(struct rate_shaping_vars_per_vn)/4; i++)
  2019. REG_WR(bp, BAR_XSTRORM_INTMEM +
  2020. XSTORM_RATE_SHAPING_PER_VN_VARS_OFFSET(func) + i * 4,
  2021. ((u32 *)(&m_rs_vn))[i]);
  2022. for (i = 0; i < sizeof(struct fairness_vars_per_vn)/4; i++)
  2023. REG_WR(bp, BAR_XSTRORM_INTMEM +
  2024. XSTORM_FAIRNESS_PER_VN_VARS_OFFSET(func) + i * 4,
  2025. ((u32 *)(&m_fair_vn))[i]);
  2026. }
  2027. static int bnx2x_get_cmng_fns_mode(struct bnx2x *bp)
  2028. {
  2029. if (CHIP_REV_IS_SLOW(bp))
  2030. return CMNG_FNS_NONE;
  2031. if (IS_MF(bp))
  2032. return CMNG_FNS_MINMAX;
  2033. return CMNG_FNS_NONE;
  2034. }
  2035. void bnx2x_read_mf_cfg(struct bnx2x *bp)
  2036. {
  2037. int vn, n = (CHIP_MODE_IS_4_PORT(bp) ? 2 : 1);
  2038. if (BP_NOMCP(bp))
  2039. return; /* what should be the default bvalue in this case */
  2040. /* For 2 port configuration the absolute function number formula
  2041. * is:
  2042. * abs_func = 2 * vn + BP_PORT + BP_PATH
  2043. *
  2044. * and there are 4 functions per port
  2045. *
  2046. * For 4 port configuration it is
  2047. * abs_func = 4 * vn + 2 * BP_PORT + BP_PATH
  2048. *
  2049. * and there are 2 functions per port
  2050. */
  2051. for (vn = VN_0; vn < BP_MAX_VN_NUM(bp); vn++) {
  2052. int /*abs*/func = n * (2 * vn + BP_PORT(bp)) + BP_PATH(bp);
  2053. if (func >= E1H_FUNC_MAX)
  2054. break;
  2055. bp->mf_config[vn] =
  2056. MF_CFG_RD(bp, func_mf_config[func].config);
  2057. }
  2058. }
  2059. static void bnx2x_cmng_fns_init(struct bnx2x *bp, u8 read_cfg, u8 cmng_type)
  2060. {
  2061. if (cmng_type == CMNG_FNS_MINMAX) {
  2062. int vn;
  2063. /* clear cmng_enables */
  2064. bp->cmng.flags.cmng_enables = 0;
  2065. /* read mf conf from shmem */
  2066. if (read_cfg)
  2067. bnx2x_read_mf_cfg(bp);
  2068. /* Init rate shaping and fairness contexts */
  2069. bnx2x_init_port_minmax(bp);
  2070. /* vn_weight_sum and enable fairness if not 0 */
  2071. bnx2x_calc_vn_weight_sum(bp);
  2072. /* calculate and set min-max rate for each vn */
  2073. if (bp->port.pmf)
  2074. for (vn = VN_0; vn < BP_MAX_VN_NUM(bp); vn++)
  2075. bnx2x_init_vn_minmax(bp, vn);
  2076. /* always enable rate shaping and fairness */
  2077. bp->cmng.flags.cmng_enables |=
  2078. CMNG_FLAGS_PER_PORT_RATE_SHAPING_VN;
  2079. if (!bp->vn_weight_sum)
  2080. DP(NETIF_MSG_IFUP, "All MIN values are zeroes"
  2081. " fairness will be disabled\n");
  2082. return;
  2083. }
  2084. /* rate shaping and fairness are disabled */
  2085. DP(NETIF_MSG_IFUP,
  2086. "rate shaping and fairness are disabled\n");
  2087. }
  2088. /* This function is called upon link interrupt */
  2089. static void bnx2x_link_attn(struct bnx2x *bp)
  2090. {
  2091. /* Make sure that we are synced with the current statistics */
  2092. bnx2x_stats_handle(bp, STATS_EVENT_STOP);
  2093. bnx2x_link_update(&bp->link_params, &bp->link_vars);
  2094. if (bp->link_vars.link_up) {
  2095. /* dropless flow control */
  2096. if (!CHIP_IS_E1(bp) && bp->dropless_fc) {
  2097. int port = BP_PORT(bp);
  2098. u32 pause_enabled = 0;
  2099. if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_TX)
  2100. pause_enabled = 1;
  2101. REG_WR(bp, BAR_USTRORM_INTMEM +
  2102. USTORM_ETH_PAUSE_ENABLED_OFFSET(port),
  2103. pause_enabled);
  2104. }
  2105. if (bp->link_vars.mac_type != MAC_TYPE_EMAC) {
  2106. struct host_port_stats *pstats;
  2107. pstats = bnx2x_sp(bp, port_stats);
  2108. /* reset old mac stats */
  2109. memset(&(pstats->mac_stx[0]), 0,
  2110. sizeof(struct mac_stx));
  2111. }
  2112. if (bp->state == BNX2X_STATE_OPEN)
  2113. bnx2x_stats_handle(bp, STATS_EVENT_LINK_UP);
  2114. }
  2115. if (bp->link_vars.link_up && bp->link_vars.line_speed) {
  2116. int cmng_fns = bnx2x_get_cmng_fns_mode(bp);
  2117. if (cmng_fns != CMNG_FNS_NONE) {
  2118. bnx2x_cmng_fns_init(bp, false, cmng_fns);
  2119. storm_memset_cmng(bp, &bp->cmng, BP_PORT(bp));
  2120. } else
  2121. /* rate shaping and fairness are disabled */
  2122. DP(NETIF_MSG_IFUP,
  2123. "single function mode without fairness\n");
  2124. }
  2125. __bnx2x_link_report(bp);
  2126. if (IS_MF(bp))
  2127. bnx2x_link_sync_notify(bp);
  2128. }
  2129. void bnx2x__link_status_update(struct bnx2x *bp)
  2130. {
  2131. if (bp->state != BNX2X_STATE_OPEN)
  2132. return;
  2133. /* read updated dcb configuration */
  2134. bnx2x_dcbx_pmf_update(bp);
  2135. bnx2x_link_status_update(&bp->link_params, &bp->link_vars);
  2136. if (bp->link_vars.link_up)
  2137. bnx2x_stats_handle(bp, STATS_EVENT_LINK_UP);
  2138. else
  2139. bnx2x_stats_handle(bp, STATS_EVENT_STOP);
  2140. /* indicate link status */
  2141. bnx2x_link_report(bp);
  2142. }
  2143. static void bnx2x_pmf_update(struct bnx2x *bp)
  2144. {
  2145. int port = BP_PORT(bp);
  2146. u32 val;
  2147. bp->port.pmf = 1;
  2148. DP(NETIF_MSG_LINK, "pmf %d\n", bp->port.pmf);
  2149. /*
  2150. * We need the mb() to ensure the ordering between the writing to
  2151. * bp->port.pmf here and reading it from the bnx2x_periodic_task().
  2152. */
  2153. smp_mb();
  2154. /* queue a periodic task */
  2155. queue_delayed_work(bnx2x_wq, &bp->period_task, 0);
  2156. bnx2x_dcbx_pmf_update(bp);
  2157. /* enable nig attention */
  2158. val = (0xff0f | (1 << (BP_VN(bp) + 4)));
  2159. if (bp->common.int_block == INT_BLOCK_HC) {
  2160. REG_WR(bp, HC_REG_TRAILING_EDGE_0 + port*8, val);
  2161. REG_WR(bp, HC_REG_LEADING_EDGE_0 + port*8, val);
  2162. } else if (!CHIP_IS_E1x(bp)) {
  2163. REG_WR(bp, IGU_REG_TRAILING_EDGE_LATCH, val);
  2164. REG_WR(bp, IGU_REG_LEADING_EDGE_LATCH, val);
  2165. }
  2166. bnx2x_stats_handle(bp, STATS_EVENT_PMF);
  2167. }
  2168. /* end of Link */
  2169. /* slow path */
  2170. /*
  2171. * General service functions
  2172. */
  2173. /* send the MCP a request, block until there is a reply */
  2174. u32 bnx2x_fw_command(struct bnx2x *bp, u32 command, u32 param)
  2175. {
  2176. int mb_idx = BP_FW_MB_IDX(bp);
  2177. u32 seq;
  2178. u32 rc = 0;
  2179. u32 cnt = 1;
  2180. u8 delay = CHIP_REV_IS_SLOW(bp) ? 100 : 10;
  2181. mutex_lock(&bp->fw_mb_mutex);
  2182. seq = ++bp->fw_seq;
  2183. SHMEM_WR(bp, func_mb[mb_idx].drv_mb_param, param);
  2184. SHMEM_WR(bp, func_mb[mb_idx].drv_mb_header, (command | seq));
  2185. DP(BNX2X_MSG_MCP, "wrote command (%x) to FW MB param 0x%08x\n",
  2186. (command | seq), param);
  2187. do {
  2188. /* let the FW do it's magic ... */
  2189. msleep(delay);
  2190. rc = SHMEM_RD(bp, func_mb[mb_idx].fw_mb_header);
  2191. /* Give the FW up to 5 second (500*10ms) */
  2192. } while ((seq != (rc & FW_MSG_SEQ_NUMBER_MASK)) && (cnt++ < 500));
  2193. DP(BNX2X_MSG_MCP, "[after %d ms] read (%x) seq is (%x) from FW MB\n",
  2194. cnt*delay, rc, seq);
  2195. /* is this a reply to our command? */
  2196. if (seq == (rc & FW_MSG_SEQ_NUMBER_MASK))
  2197. rc &= FW_MSG_CODE_MASK;
  2198. else {
  2199. /* FW BUG! */
  2200. BNX2X_ERR("FW failed to respond!\n");
  2201. bnx2x_fw_dump(bp);
  2202. rc = 0;
  2203. }
  2204. mutex_unlock(&bp->fw_mb_mutex);
  2205. return rc;
  2206. }
  2207. void bnx2x_func_init(struct bnx2x *bp, struct bnx2x_func_init_params *p)
  2208. {
  2209. if (CHIP_IS_E1x(bp)) {
  2210. struct tstorm_eth_function_common_config tcfg = {0};
  2211. storm_memset_func_cfg(bp, &tcfg, p->func_id);
  2212. }
  2213. /* Enable the function in the FW */
  2214. storm_memset_vf_to_pf(bp, p->func_id, p->pf_id);
  2215. storm_memset_func_en(bp, p->func_id, 1);
  2216. /* spq */
  2217. if (p->func_flgs & FUNC_FLG_SPQ) {
  2218. storm_memset_spq_addr(bp, p->spq_map, p->func_id);
  2219. REG_WR(bp, XSEM_REG_FAST_MEMORY +
  2220. XSTORM_SPQ_PROD_OFFSET(p->func_id), p->spq_prod);
  2221. }
  2222. }
  2223. /**
  2224. * bnx2x_get_tx_only_flags - Return common flags
  2225. *
  2226. * @bp device handle
  2227. * @fp queue handle
  2228. * @zero_stats TRUE if statistics zeroing is needed
  2229. *
  2230. * Return the flags that are common for the Tx-only and not normal connections.
  2231. */
  2232. static inline unsigned long bnx2x_get_common_flags(struct bnx2x *bp,
  2233. struct bnx2x_fastpath *fp,
  2234. bool zero_stats)
  2235. {
  2236. unsigned long flags = 0;
  2237. /* PF driver will always initialize the Queue to an ACTIVE state */
  2238. __set_bit(BNX2X_Q_FLG_ACTIVE, &flags);
  2239. /* tx only connections collect statistics (on the same index as the
  2240. * parent connection). The statistics are zeroed when the parent
  2241. * connection is initialized.
  2242. */
  2243. __set_bit(BNX2X_Q_FLG_STATS, &flags);
  2244. if (zero_stats)
  2245. __set_bit(BNX2X_Q_FLG_ZERO_STATS, &flags);
  2246. return flags;
  2247. }
  2248. static inline unsigned long bnx2x_get_q_flags(struct bnx2x *bp,
  2249. struct bnx2x_fastpath *fp,
  2250. bool leading)
  2251. {
  2252. unsigned long flags = 0;
  2253. /* calculate other queue flags */
  2254. if (IS_MF_SD(bp))
  2255. __set_bit(BNX2X_Q_FLG_OV, &flags);
  2256. if (IS_FCOE_FP(fp))
  2257. __set_bit(BNX2X_Q_FLG_FCOE, &flags);
  2258. if (!fp->disable_tpa) {
  2259. __set_bit(BNX2X_Q_FLG_TPA, &flags);
  2260. __set_bit(BNX2X_Q_FLG_TPA_IPV6, &flags);
  2261. }
  2262. if (leading) {
  2263. __set_bit(BNX2X_Q_FLG_LEADING_RSS, &flags);
  2264. __set_bit(BNX2X_Q_FLG_MCAST, &flags);
  2265. }
  2266. /* Always set HW VLAN stripping */
  2267. __set_bit(BNX2X_Q_FLG_VLAN, &flags);
  2268. return flags | bnx2x_get_common_flags(bp, fp, true);
  2269. }
  2270. static void bnx2x_pf_q_prep_general(struct bnx2x *bp,
  2271. struct bnx2x_fastpath *fp, struct bnx2x_general_setup_params *gen_init,
  2272. u8 cos)
  2273. {
  2274. gen_init->stat_id = bnx2x_stats_id(fp);
  2275. gen_init->spcl_id = fp->cl_id;
  2276. /* Always use mini-jumbo MTU for FCoE L2 ring */
  2277. if (IS_FCOE_FP(fp))
  2278. gen_init->mtu = BNX2X_FCOE_MINI_JUMBO_MTU;
  2279. else
  2280. gen_init->mtu = bp->dev->mtu;
  2281. gen_init->cos = cos;
  2282. }
  2283. static void bnx2x_pf_rx_q_prep(struct bnx2x *bp,
  2284. struct bnx2x_fastpath *fp, struct rxq_pause_params *pause,
  2285. struct bnx2x_rxq_setup_params *rxq_init)
  2286. {
  2287. u8 max_sge = 0;
  2288. u16 sge_sz = 0;
  2289. u16 tpa_agg_size = 0;
  2290. if (!fp->disable_tpa) {
  2291. pause->sge_th_lo = SGE_TH_LO(bp);
  2292. pause->sge_th_hi = SGE_TH_HI(bp);
  2293. /* validate SGE ring has enough to cross high threshold */
  2294. WARN_ON(bp->dropless_fc &&
  2295. pause->sge_th_hi + FW_PREFETCH_CNT >
  2296. MAX_RX_SGE_CNT * NUM_RX_SGE_PAGES);
  2297. tpa_agg_size = min_t(u32,
  2298. (min_t(u32, 8, MAX_SKB_FRAGS) *
  2299. SGE_PAGE_SIZE * PAGES_PER_SGE), 0xffff);
  2300. max_sge = SGE_PAGE_ALIGN(bp->dev->mtu) >>
  2301. SGE_PAGE_SHIFT;
  2302. max_sge = ((max_sge + PAGES_PER_SGE - 1) &
  2303. (~(PAGES_PER_SGE-1))) >> PAGES_PER_SGE_SHIFT;
  2304. sge_sz = (u16)min_t(u32, SGE_PAGE_SIZE * PAGES_PER_SGE,
  2305. 0xffff);
  2306. }
  2307. /* pause - not for e1 */
  2308. if (!CHIP_IS_E1(bp)) {
  2309. pause->bd_th_lo = BD_TH_LO(bp);
  2310. pause->bd_th_hi = BD_TH_HI(bp);
  2311. pause->rcq_th_lo = RCQ_TH_LO(bp);
  2312. pause->rcq_th_hi = RCQ_TH_HI(bp);
  2313. /*
  2314. * validate that rings have enough entries to cross
  2315. * high thresholds
  2316. */
  2317. WARN_ON(bp->dropless_fc &&
  2318. pause->bd_th_hi + FW_PREFETCH_CNT >
  2319. bp->rx_ring_size);
  2320. WARN_ON(bp->dropless_fc &&
  2321. pause->rcq_th_hi + FW_PREFETCH_CNT >
  2322. NUM_RCQ_RINGS * MAX_RCQ_DESC_CNT);
  2323. pause->pri_map = 1;
  2324. }
  2325. /* rxq setup */
  2326. rxq_init->dscr_map = fp->rx_desc_mapping;
  2327. rxq_init->sge_map = fp->rx_sge_mapping;
  2328. rxq_init->rcq_map = fp->rx_comp_mapping;
  2329. rxq_init->rcq_np_map = fp->rx_comp_mapping + BCM_PAGE_SIZE;
  2330. /* This should be a maximum number of data bytes that may be
  2331. * placed on the BD (not including paddings).
  2332. */
  2333. rxq_init->buf_sz = fp->rx_buf_size - BNX2X_FW_RX_ALIGN_START -
  2334. BNX2X_FW_RX_ALIGN_END - IP_HEADER_ALIGNMENT_PADDING;
  2335. rxq_init->cl_qzone_id = fp->cl_qzone_id;
  2336. rxq_init->tpa_agg_sz = tpa_agg_size;
  2337. rxq_init->sge_buf_sz = sge_sz;
  2338. rxq_init->max_sges_pkt = max_sge;
  2339. rxq_init->rss_engine_id = BP_FUNC(bp);
  2340. /* Maximum number or simultaneous TPA aggregation for this Queue.
  2341. *
  2342. * For PF Clients it should be the maximum avaliable number.
  2343. * VF driver(s) may want to define it to a smaller value.
  2344. */
  2345. rxq_init->max_tpa_queues = MAX_AGG_QS(bp);
  2346. rxq_init->cache_line_log = BNX2X_RX_ALIGN_SHIFT;
  2347. rxq_init->fw_sb_id = fp->fw_sb_id;
  2348. if (IS_FCOE_FP(fp))
  2349. rxq_init->sb_cq_index = HC_SP_INDEX_ETH_FCOE_RX_CQ_CONS;
  2350. else
  2351. rxq_init->sb_cq_index = HC_INDEX_ETH_RX_CQ_CONS;
  2352. }
  2353. static void bnx2x_pf_tx_q_prep(struct bnx2x *bp,
  2354. struct bnx2x_fastpath *fp, struct bnx2x_txq_setup_params *txq_init,
  2355. u8 cos)
  2356. {
  2357. txq_init->dscr_map = fp->txdata[cos].tx_desc_mapping;
  2358. txq_init->sb_cq_index = HC_INDEX_ETH_FIRST_TX_CQ_CONS + cos;
  2359. txq_init->traffic_type = LLFC_TRAFFIC_TYPE_NW;
  2360. txq_init->fw_sb_id = fp->fw_sb_id;
  2361. /*
  2362. * set the tss leading client id for TX classfication ==
  2363. * leading RSS client id
  2364. */
  2365. txq_init->tss_leading_cl_id = bnx2x_fp(bp, 0, cl_id);
  2366. if (IS_FCOE_FP(fp)) {
  2367. txq_init->sb_cq_index = HC_SP_INDEX_ETH_FCOE_TX_CQ_CONS;
  2368. txq_init->traffic_type = LLFC_TRAFFIC_TYPE_FCOE;
  2369. }
  2370. }
  2371. static void bnx2x_pf_init(struct bnx2x *bp)
  2372. {
  2373. struct bnx2x_func_init_params func_init = {0};
  2374. struct event_ring_data eq_data = { {0} };
  2375. u16 flags;
  2376. if (!CHIP_IS_E1x(bp)) {
  2377. /* reset IGU PF statistics: MSIX + ATTN */
  2378. /* PF */
  2379. REG_WR(bp, IGU_REG_STATISTIC_NUM_MESSAGE_SENT +
  2380. BNX2X_IGU_STAS_MSG_VF_CNT*4 +
  2381. (CHIP_MODE_IS_4_PORT(bp) ?
  2382. BP_FUNC(bp) : BP_VN(bp))*4, 0);
  2383. /* ATTN */
  2384. REG_WR(bp, IGU_REG_STATISTIC_NUM_MESSAGE_SENT +
  2385. BNX2X_IGU_STAS_MSG_VF_CNT*4 +
  2386. BNX2X_IGU_STAS_MSG_PF_CNT*4 +
  2387. (CHIP_MODE_IS_4_PORT(bp) ?
  2388. BP_FUNC(bp) : BP_VN(bp))*4, 0);
  2389. }
  2390. /* function setup flags */
  2391. flags = (FUNC_FLG_STATS | FUNC_FLG_LEADING | FUNC_FLG_SPQ);
  2392. /* This flag is relevant for E1x only.
  2393. * E2 doesn't have a TPA configuration in a function level.
  2394. */
  2395. flags |= (bp->flags & TPA_ENABLE_FLAG) ? FUNC_FLG_TPA : 0;
  2396. func_init.func_flgs = flags;
  2397. func_init.pf_id = BP_FUNC(bp);
  2398. func_init.func_id = BP_FUNC(bp);
  2399. func_init.spq_map = bp->spq_mapping;
  2400. func_init.spq_prod = bp->spq_prod_idx;
  2401. bnx2x_func_init(bp, &func_init);
  2402. memset(&(bp->cmng), 0, sizeof(struct cmng_struct_per_port));
  2403. /*
  2404. * Congestion management values depend on the link rate
  2405. * There is no active link so initial link rate is set to 10 Gbps.
  2406. * When the link comes up The congestion management values are
  2407. * re-calculated according to the actual link rate.
  2408. */
  2409. bp->link_vars.line_speed = SPEED_10000;
  2410. bnx2x_cmng_fns_init(bp, true, bnx2x_get_cmng_fns_mode(bp));
  2411. /* Only the PMF sets the HW */
  2412. if (bp->port.pmf)
  2413. storm_memset_cmng(bp, &bp->cmng, BP_PORT(bp));
  2414. /* init Event Queue */
  2415. eq_data.base_addr.hi = U64_HI(bp->eq_mapping);
  2416. eq_data.base_addr.lo = U64_LO(bp->eq_mapping);
  2417. eq_data.producer = bp->eq_prod;
  2418. eq_data.index_id = HC_SP_INDEX_EQ_CONS;
  2419. eq_data.sb_id = DEF_SB_ID;
  2420. storm_memset_eq_data(bp, &eq_data, BP_FUNC(bp));
  2421. }
  2422. static void bnx2x_e1h_disable(struct bnx2x *bp)
  2423. {
  2424. int port = BP_PORT(bp);
  2425. bnx2x_tx_disable(bp);
  2426. REG_WR(bp, NIG_REG_LLH0_FUNC_EN + port*8, 0);
  2427. }
  2428. static void bnx2x_e1h_enable(struct bnx2x *bp)
  2429. {
  2430. int port = BP_PORT(bp);
  2431. REG_WR(bp, NIG_REG_LLH0_FUNC_EN + port*8, 1);
  2432. /* Tx queue should be only reenabled */
  2433. netif_tx_wake_all_queues(bp->dev);
  2434. /*
  2435. * Should not call netif_carrier_on since it will be called if the link
  2436. * is up when checking for link state
  2437. */
  2438. }
  2439. #define DRV_INFO_ETH_STAT_NUM_MACS_REQUIRED 3
  2440. static void bnx2x_drv_info_ether_stat(struct bnx2x *bp)
  2441. {
  2442. struct eth_stats_info *ether_stat =
  2443. &bp->slowpath->drv_info_to_mcp.ether_stat;
  2444. /* leave last char as NULL */
  2445. memcpy(ether_stat->version, DRV_MODULE_VERSION,
  2446. ETH_STAT_INFO_VERSION_LEN - 1);
  2447. bp->fp[0].mac_obj.get_n_elements(bp, &bp->fp[0].mac_obj,
  2448. DRV_INFO_ETH_STAT_NUM_MACS_REQUIRED,
  2449. ether_stat->mac_local);
  2450. ether_stat->mtu_size = bp->dev->mtu;
  2451. if (bp->dev->features & NETIF_F_RXCSUM)
  2452. ether_stat->feature_flags |= FEATURE_ETH_CHKSUM_OFFLOAD_MASK;
  2453. if (bp->dev->features & NETIF_F_TSO)
  2454. ether_stat->feature_flags |= FEATURE_ETH_LSO_MASK;
  2455. ether_stat->feature_flags |= bp->common.boot_mode;
  2456. ether_stat->promiscuous_mode = (bp->dev->flags & IFF_PROMISC) ? 1 : 0;
  2457. ether_stat->txq_size = bp->tx_ring_size;
  2458. ether_stat->rxq_size = bp->rx_ring_size;
  2459. }
  2460. static void bnx2x_drv_info_fcoe_stat(struct bnx2x *bp)
  2461. {
  2462. #ifdef BCM_CNIC
  2463. struct bnx2x_dcbx_app_params *app = &bp->dcbx_port_params.app;
  2464. struct fcoe_stats_info *fcoe_stat =
  2465. &bp->slowpath->drv_info_to_mcp.fcoe_stat;
  2466. memcpy(fcoe_stat->mac_local, bp->fip_mac, ETH_ALEN);
  2467. fcoe_stat->qos_priority =
  2468. app->traffic_type_priority[LLFC_TRAFFIC_TYPE_FCOE];
  2469. /* insert FCoE stats from ramrod response */
  2470. if (!NO_FCOE(bp)) {
  2471. struct tstorm_per_queue_stats *fcoe_q_tstorm_stats =
  2472. &bp->fw_stats_data->queue_stats[FCOE_IDX].
  2473. tstorm_queue_statistics;
  2474. struct xstorm_per_queue_stats *fcoe_q_xstorm_stats =
  2475. &bp->fw_stats_data->queue_stats[FCOE_IDX].
  2476. xstorm_queue_statistics;
  2477. struct fcoe_statistics_params *fw_fcoe_stat =
  2478. &bp->fw_stats_data->fcoe;
  2479. ADD_64(fcoe_stat->rx_bytes_hi, 0, fcoe_stat->rx_bytes_lo,
  2480. fw_fcoe_stat->rx_stat0.fcoe_rx_byte_cnt);
  2481. ADD_64(fcoe_stat->rx_bytes_hi,
  2482. fcoe_q_tstorm_stats->rcv_ucast_bytes.hi,
  2483. fcoe_stat->rx_bytes_lo,
  2484. fcoe_q_tstorm_stats->rcv_ucast_bytes.lo);
  2485. ADD_64(fcoe_stat->rx_bytes_hi,
  2486. fcoe_q_tstorm_stats->rcv_bcast_bytes.hi,
  2487. fcoe_stat->rx_bytes_lo,
  2488. fcoe_q_tstorm_stats->rcv_bcast_bytes.lo);
  2489. ADD_64(fcoe_stat->rx_bytes_hi,
  2490. fcoe_q_tstorm_stats->rcv_mcast_bytes.hi,
  2491. fcoe_stat->rx_bytes_lo,
  2492. fcoe_q_tstorm_stats->rcv_mcast_bytes.lo);
  2493. ADD_64(fcoe_stat->rx_frames_hi, 0, fcoe_stat->rx_frames_lo,
  2494. fw_fcoe_stat->rx_stat0.fcoe_rx_pkt_cnt);
  2495. ADD_64(fcoe_stat->rx_frames_hi, 0, fcoe_stat->rx_frames_lo,
  2496. fcoe_q_tstorm_stats->rcv_ucast_pkts);
  2497. ADD_64(fcoe_stat->rx_frames_hi, 0, fcoe_stat->rx_frames_lo,
  2498. fcoe_q_tstorm_stats->rcv_bcast_pkts);
  2499. ADD_64(fcoe_stat->rx_frames_hi, 0, fcoe_stat->rx_frames_lo,
  2500. fcoe_q_tstorm_stats->rcv_mcast_pkts);
  2501. ADD_64(fcoe_stat->tx_bytes_hi, 0, fcoe_stat->tx_bytes_lo,
  2502. fw_fcoe_stat->tx_stat.fcoe_tx_byte_cnt);
  2503. ADD_64(fcoe_stat->tx_bytes_hi,
  2504. fcoe_q_xstorm_stats->ucast_bytes_sent.hi,
  2505. fcoe_stat->tx_bytes_lo,
  2506. fcoe_q_xstorm_stats->ucast_bytes_sent.lo);
  2507. ADD_64(fcoe_stat->tx_bytes_hi,
  2508. fcoe_q_xstorm_stats->bcast_bytes_sent.hi,
  2509. fcoe_stat->tx_bytes_lo,
  2510. fcoe_q_xstorm_stats->bcast_bytes_sent.lo);
  2511. ADD_64(fcoe_stat->tx_bytes_hi,
  2512. fcoe_q_xstorm_stats->mcast_bytes_sent.hi,
  2513. fcoe_stat->tx_bytes_lo,
  2514. fcoe_q_xstorm_stats->mcast_bytes_sent.lo);
  2515. ADD_64(fcoe_stat->tx_frames_hi, 0, fcoe_stat->tx_frames_lo,
  2516. fw_fcoe_stat->tx_stat.fcoe_tx_pkt_cnt);
  2517. ADD_64(fcoe_stat->tx_frames_hi, 0, fcoe_stat->tx_frames_lo,
  2518. fcoe_q_xstorm_stats->ucast_pkts_sent);
  2519. ADD_64(fcoe_stat->tx_frames_hi, 0, fcoe_stat->tx_frames_lo,
  2520. fcoe_q_xstorm_stats->bcast_pkts_sent);
  2521. ADD_64(fcoe_stat->tx_frames_hi, 0, fcoe_stat->tx_frames_lo,
  2522. fcoe_q_xstorm_stats->mcast_pkts_sent);
  2523. }
  2524. /* ask L5 driver to add data to the struct */
  2525. bnx2x_cnic_notify(bp, CNIC_CTL_FCOE_STATS_GET_CMD);
  2526. #endif
  2527. }
  2528. static void bnx2x_drv_info_iscsi_stat(struct bnx2x *bp)
  2529. {
  2530. #ifdef BCM_CNIC
  2531. struct bnx2x_dcbx_app_params *app = &bp->dcbx_port_params.app;
  2532. struct iscsi_stats_info *iscsi_stat =
  2533. &bp->slowpath->drv_info_to_mcp.iscsi_stat;
  2534. memcpy(iscsi_stat->mac_local, bp->cnic_eth_dev.iscsi_mac, ETH_ALEN);
  2535. iscsi_stat->qos_priority =
  2536. app->traffic_type_priority[LLFC_TRAFFIC_TYPE_ISCSI];
  2537. /* ask L5 driver to add data to the struct */
  2538. bnx2x_cnic_notify(bp, CNIC_CTL_ISCSI_STATS_GET_CMD);
  2539. #endif
  2540. }
  2541. /* called due to MCP event (on pmf):
  2542. * reread new bandwidth configuration
  2543. * configure FW
  2544. * notify others function about the change
  2545. */
  2546. static inline void bnx2x_config_mf_bw(struct bnx2x *bp)
  2547. {
  2548. if (bp->link_vars.link_up) {
  2549. bnx2x_cmng_fns_init(bp, true, CMNG_FNS_MINMAX);
  2550. bnx2x_link_sync_notify(bp);
  2551. }
  2552. storm_memset_cmng(bp, &bp->cmng, BP_PORT(bp));
  2553. }
  2554. static inline void bnx2x_set_mf_bw(struct bnx2x *bp)
  2555. {
  2556. bnx2x_config_mf_bw(bp);
  2557. bnx2x_fw_command(bp, DRV_MSG_CODE_SET_MF_BW_ACK, 0);
  2558. }
  2559. static void bnx2x_handle_drv_info_req(struct bnx2x *bp)
  2560. {
  2561. enum drv_info_opcode op_code;
  2562. u32 drv_info_ctl = SHMEM2_RD(bp, drv_info_control);
  2563. /* if drv_info version supported by MFW doesn't match - send NACK */
  2564. if ((drv_info_ctl & DRV_INFO_CONTROL_VER_MASK) != DRV_INFO_CUR_VER) {
  2565. bnx2x_fw_command(bp, DRV_MSG_CODE_DRV_INFO_NACK, 0);
  2566. return;
  2567. }
  2568. op_code = (drv_info_ctl & DRV_INFO_CONTROL_OP_CODE_MASK) >>
  2569. DRV_INFO_CONTROL_OP_CODE_SHIFT;
  2570. memset(&bp->slowpath->drv_info_to_mcp, 0,
  2571. sizeof(union drv_info_to_mcp));
  2572. switch (op_code) {
  2573. case ETH_STATS_OPCODE:
  2574. bnx2x_drv_info_ether_stat(bp);
  2575. break;
  2576. case FCOE_STATS_OPCODE:
  2577. bnx2x_drv_info_fcoe_stat(bp);
  2578. break;
  2579. case ISCSI_STATS_OPCODE:
  2580. bnx2x_drv_info_iscsi_stat(bp);
  2581. break;
  2582. default:
  2583. /* if op code isn't supported - send NACK */
  2584. bnx2x_fw_command(bp, DRV_MSG_CODE_DRV_INFO_NACK, 0);
  2585. return;
  2586. }
  2587. /* if we got drv_info attn from MFW then these fields are defined in
  2588. * shmem2 for sure
  2589. */
  2590. SHMEM2_WR(bp, drv_info_host_addr_lo,
  2591. U64_LO(bnx2x_sp_mapping(bp, drv_info_to_mcp)));
  2592. SHMEM2_WR(bp, drv_info_host_addr_hi,
  2593. U64_HI(bnx2x_sp_mapping(bp, drv_info_to_mcp)));
  2594. bnx2x_fw_command(bp, DRV_MSG_CODE_DRV_INFO_ACK, 0);
  2595. }
  2596. static void bnx2x_dcc_event(struct bnx2x *bp, u32 dcc_event)
  2597. {
  2598. DP(BNX2X_MSG_MCP, "dcc_event 0x%x\n", dcc_event);
  2599. if (dcc_event & DRV_STATUS_DCC_DISABLE_ENABLE_PF) {
  2600. /*
  2601. * This is the only place besides the function initialization
  2602. * where the bp->flags can change so it is done without any
  2603. * locks
  2604. */
  2605. if (bp->mf_config[BP_VN(bp)] & FUNC_MF_CFG_FUNC_DISABLED) {
  2606. DP(NETIF_MSG_IFDOWN, "mf_cfg function disabled\n");
  2607. bp->flags |= MF_FUNC_DIS;
  2608. bnx2x_e1h_disable(bp);
  2609. } else {
  2610. DP(NETIF_MSG_IFUP, "mf_cfg function enabled\n");
  2611. bp->flags &= ~MF_FUNC_DIS;
  2612. bnx2x_e1h_enable(bp);
  2613. }
  2614. dcc_event &= ~DRV_STATUS_DCC_DISABLE_ENABLE_PF;
  2615. }
  2616. if (dcc_event & DRV_STATUS_DCC_BANDWIDTH_ALLOCATION) {
  2617. bnx2x_config_mf_bw(bp);
  2618. dcc_event &= ~DRV_STATUS_DCC_BANDWIDTH_ALLOCATION;
  2619. }
  2620. /* Report results to MCP */
  2621. if (dcc_event)
  2622. bnx2x_fw_command(bp, DRV_MSG_CODE_DCC_FAILURE, 0);
  2623. else
  2624. bnx2x_fw_command(bp, DRV_MSG_CODE_DCC_OK, 0);
  2625. }
  2626. /* must be called under the spq lock */
  2627. static inline struct eth_spe *bnx2x_sp_get_next(struct bnx2x *bp)
  2628. {
  2629. struct eth_spe *next_spe = bp->spq_prod_bd;
  2630. if (bp->spq_prod_bd == bp->spq_last_bd) {
  2631. bp->spq_prod_bd = bp->spq;
  2632. bp->spq_prod_idx = 0;
  2633. DP(NETIF_MSG_TIMER, "end of spq\n");
  2634. } else {
  2635. bp->spq_prod_bd++;
  2636. bp->spq_prod_idx++;
  2637. }
  2638. return next_spe;
  2639. }
  2640. /* must be called under the spq lock */
  2641. static inline void bnx2x_sp_prod_update(struct bnx2x *bp)
  2642. {
  2643. int func = BP_FUNC(bp);
  2644. /*
  2645. * Make sure that BD data is updated before writing the producer:
  2646. * BD data is written to the memory, the producer is read from the
  2647. * memory, thus we need a full memory barrier to ensure the ordering.
  2648. */
  2649. mb();
  2650. REG_WR16(bp, BAR_XSTRORM_INTMEM + XSTORM_SPQ_PROD_OFFSET(func),
  2651. bp->spq_prod_idx);
  2652. mmiowb();
  2653. }
  2654. /**
  2655. * bnx2x_is_contextless_ramrod - check if the current command ends on EQ
  2656. *
  2657. * @cmd: command to check
  2658. * @cmd_type: command type
  2659. */
  2660. static inline bool bnx2x_is_contextless_ramrod(int cmd, int cmd_type)
  2661. {
  2662. if ((cmd_type == NONE_CONNECTION_TYPE) ||
  2663. (cmd == RAMROD_CMD_ID_ETH_FORWARD_SETUP) ||
  2664. (cmd == RAMROD_CMD_ID_ETH_CLASSIFICATION_RULES) ||
  2665. (cmd == RAMROD_CMD_ID_ETH_FILTER_RULES) ||
  2666. (cmd == RAMROD_CMD_ID_ETH_MULTICAST_RULES) ||
  2667. (cmd == RAMROD_CMD_ID_ETH_SET_MAC) ||
  2668. (cmd == RAMROD_CMD_ID_ETH_RSS_UPDATE))
  2669. return true;
  2670. else
  2671. return false;
  2672. }
  2673. /**
  2674. * bnx2x_sp_post - place a single command on an SP ring
  2675. *
  2676. * @bp: driver handle
  2677. * @command: command to place (e.g. SETUP, FILTER_RULES, etc.)
  2678. * @cid: SW CID the command is related to
  2679. * @data_hi: command private data address (high 32 bits)
  2680. * @data_lo: command private data address (low 32 bits)
  2681. * @cmd_type: command type (e.g. NONE, ETH)
  2682. *
  2683. * SP data is handled as if it's always an address pair, thus data fields are
  2684. * not swapped to little endian in upper functions. Instead this function swaps
  2685. * data as if it's two u32 fields.
  2686. */
  2687. int bnx2x_sp_post(struct bnx2x *bp, int command, int cid,
  2688. u32 data_hi, u32 data_lo, int cmd_type)
  2689. {
  2690. struct eth_spe *spe;
  2691. u16 type;
  2692. bool common = bnx2x_is_contextless_ramrod(command, cmd_type);
  2693. #ifdef BNX2X_STOP_ON_ERROR
  2694. if (unlikely(bp->panic))
  2695. return -EIO;
  2696. #endif
  2697. spin_lock_bh(&bp->spq_lock);
  2698. if (common) {
  2699. if (!atomic_read(&bp->eq_spq_left)) {
  2700. BNX2X_ERR("BUG! EQ ring full!\n");
  2701. spin_unlock_bh(&bp->spq_lock);
  2702. bnx2x_panic();
  2703. return -EBUSY;
  2704. }
  2705. } else if (!atomic_read(&bp->cq_spq_left)) {
  2706. BNX2X_ERR("BUG! SPQ ring full!\n");
  2707. spin_unlock_bh(&bp->spq_lock);
  2708. bnx2x_panic();
  2709. return -EBUSY;
  2710. }
  2711. spe = bnx2x_sp_get_next(bp);
  2712. /* CID needs port number to be encoded int it */
  2713. spe->hdr.conn_and_cmd_data =
  2714. cpu_to_le32((command << SPE_HDR_CMD_ID_SHIFT) |
  2715. HW_CID(bp, cid));
  2716. type = (cmd_type << SPE_HDR_CONN_TYPE_SHIFT) & SPE_HDR_CONN_TYPE;
  2717. type |= ((BP_FUNC(bp) << SPE_HDR_FUNCTION_ID_SHIFT) &
  2718. SPE_HDR_FUNCTION_ID);
  2719. spe->hdr.type = cpu_to_le16(type);
  2720. spe->data.update_data_addr.hi = cpu_to_le32(data_hi);
  2721. spe->data.update_data_addr.lo = cpu_to_le32(data_lo);
  2722. /*
  2723. * It's ok if the actual decrement is issued towards the memory
  2724. * somewhere between the spin_lock and spin_unlock. Thus no
  2725. * more explict memory barrier is needed.
  2726. */
  2727. if (common)
  2728. atomic_dec(&bp->eq_spq_left);
  2729. else
  2730. atomic_dec(&bp->cq_spq_left);
  2731. DP(BNX2X_MSG_SP/*NETIF_MSG_TIMER*/,
  2732. "SPQE[%x] (%x:%x) (cmd, common?) (%d,%d) hw_cid %x data (%x:%x) "
  2733. "type(0x%x) left (CQ, EQ) (%x,%x)\n",
  2734. bp->spq_prod_idx, (u32)U64_HI(bp->spq_mapping),
  2735. (u32)(U64_LO(bp->spq_mapping) +
  2736. (void *)bp->spq_prod_bd - (void *)bp->spq), command, common,
  2737. HW_CID(bp, cid), data_hi, data_lo, type,
  2738. atomic_read(&bp->cq_spq_left), atomic_read(&bp->eq_spq_left));
  2739. bnx2x_sp_prod_update(bp);
  2740. spin_unlock_bh(&bp->spq_lock);
  2741. return 0;
  2742. }
  2743. /* acquire split MCP access lock register */
  2744. static int bnx2x_acquire_alr(struct bnx2x *bp)
  2745. {
  2746. u32 j, val;
  2747. int rc = 0;
  2748. might_sleep();
  2749. for (j = 0; j < 1000; j++) {
  2750. val = (1UL << 31);
  2751. REG_WR(bp, GRCBASE_MCP + 0x9c, val);
  2752. val = REG_RD(bp, GRCBASE_MCP + 0x9c);
  2753. if (val & (1L << 31))
  2754. break;
  2755. msleep(5);
  2756. }
  2757. if (!(val & (1L << 31))) {
  2758. BNX2X_ERR("Cannot acquire MCP access lock register\n");
  2759. rc = -EBUSY;
  2760. }
  2761. return rc;
  2762. }
  2763. /* release split MCP access lock register */
  2764. static void bnx2x_release_alr(struct bnx2x *bp)
  2765. {
  2766. REG_WR(bp, GRCBASE_MCP + 0x9c, 0);
  2767. }
  2768. #define BNX2X_DEF_SB_ATT_IDX 0x0001
  2769. #define BNX2X_DEF_SB_IDX 0x0002
  2770. static inline u16 bnx2x_update_dsb_idx(struct bnx2x *bp)
  2771. {
  2772. struct host_sp_status_block *def_sb = bp->def_status_blk;
  2773. u16 rc = 0;
  2774. barrier(); /* status block is written to by the chip */
  2775. if (bp->def_att_idx != def_sb->atten_status_block.attn_bits_index) {
  2776. bp->def_att_idx = def_sb->atten_status_block.attn_bits_index;
  2777. rc |= BNX2X_DEF_SB_ATT_IDX;
  2778. }
  2779. if (bp->def_idx != def_sb->sp_sb.running_index) {
  2780. bp->def_idx = def_sb->sp_sb.running_index;
  2781. rc |= BNX2X_DEF_SB_IDX;
  2782. }
  2783. /* Do not reorder: indecies reading should complete before handling */
  2784. barrier();
  2785. return rc;
  2786. }
  2787. /*
  2788. * slow path service functions
  2789. */
  2790. static void bnx2x_attn_int_asserted(struct bnx2x *bp, u32 asserted)
  2791. {
  2792. int port = BP_PORT(bp);
  2793. u32 aeu_addr = port ? MISC_REG_AEU_MASK_ATTN_FUNC_1 :
  2794. MISC_REG_AEU_MASK_ATTN_FUNC_0;
  2795. u32 nig_int_mask_addr = port ? NIG_REG_MASK_INTERRUPT_PORT1 :
  2796. NIG_REG_MASK_INTERRUPT_PORT0;
  2797. u32 aeu_mask;
  2798. u32 nig_mask = 0;
  2799. u32 reg_addr;
  2800. if (bp->attn_state & asserted)
  2801. BNX2X_ERR("IGU ERROR\n");
  2802. bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_PORT0_ATT_MASK + port);
  2803. aeu_mask = REG_RD(bp, aeu_addr);
  2804. DP(NETIF_MSG_HW, "aeu_mask %x newly asserted %x\n",
  2805. aeu_mask, asserted);
  2806. aeu_mask &= ~(asserted & 0x3ff);
  2807. DP(NETIF_MSG_HW, "new mask %x\n", aeu_mask);
  2808. REG_WR(bp, aeu_addr, aeu_mask);
  2809. bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_PORT0_ATT_MASK + port);
  2810. DP(NETIF_MSG_HW, "attn_state %x\n", bp->attn_state);
  2811. bp->attn_state |= asserted;
  2812. DP(NETIF_MSG_HW, "new state %x\n", bp->attn_state);
  2813. if (asserted & ATTN_HARD_WIRED_MASK) {
  2814. if (asserted & ATTN_NIG_FOR_FUNC) {
  2815. bnx2x_acquire_phy_lock(bp);
  2816. /* save nig interrupt mask */
  2817. nig_mask = REG_RD(bp, nig_int_mask_addr);
  2818. /* If nig_mask is not set, no need to call the update
  2819. * function.
  2820. */
  2821. if (nig_mask) {
  2822. REG_WR(bp, nig_int_mask_addr, 0);
  2823. bnx2x_link_attn(bp);
  2824. }
  2825. /* handle unicore attn? */
  2826. }
  2827. if (asserted & ATTN_SW_TIMER_4_FUNC)
  2828. DP(NETIF_MSG_HW, "ATTN_SW_TIMER_4_FUNC!\n");
  2829. if (asserted & GPIO_2_FUNC)
  2830. DP(NETIF_MSG_HW, "GPIO_2_FUNC!\n");
  2831. if (asserted & GPIO_3_FUNC)
  2832. DP(NETIF_MSG_HW, "GPIO_3_FUNC!\n");
  2833. if (asserted & GPIO_4_FUNC)
  2834. DP(NETIF_MSG_HW, "GPIO_4_FUNC!\n");
  2835. if (port == 0) {
  2836. if (asserted & ATTN_GENERAL_ATTN_1) {
  2837. DP(NETIF_MSG_HW, "ATTN_GENERAL_ATTN_1!\n");
  2838. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_1, 0x0);
  2839. }
  2840. if (asserted & ATTN_GENERAL_ATTN_2) {
  2841. DP(NETIF_MSG_HW, "ATTN_GENERAL_ATTN_2!\n");
  2842. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_2, 0x0);
  2843. }
  2844. if (asserted & ATTN_GENERAL_ATTN_3) {
  2845. DP(NETIF_MSG_HW, "ATTN_GENERAL_ATTN_3!\n");
  2846. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_3, 0x0);
  2847. }
  2848. } else {
  2849. if (asserted & ATTN_GENERAL_ATTN_4) {
  2850. DP(NETIF_MSG_HW, "ATTN_GENERAL_ATTN_4!\n");
  2851. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_4, 0x0);
  2852. }
  2853. if (asserted & ATTN_GENERAL_ATTN_5) {
  2854. DP(NETIF_MSG_HW, "ATTN_GENERAL_ATTN_5!\n");
  2855. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_5, 0x0);
  2856. }
  2857. if (asserted & ATTN_GENERAL_ATTN_6) {
  2858. DP(NETIF_MSG_HW, "ATTN_GENERAL_ATTN_6!\n");
  2859. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_6, 0x0);
  2860. }
  2861. }
  2862. } /* if hardwired */
  2863. if (bp->common.int_block == INT_BLOCK_HC)
  2864. reg_addr = (HC_REG_COMMAND_REG + port*32 +
  2865. COMMAND_REG_ATTN_BITS_SET);
  2866. else
  2867. reg_addr = (BAR_IGU_INTMEM + IGU_CMD_ATTN_BIT_SET_UPPER*8);
  2868. DP(NETIF_MSG_HW, "about to mask 0x%08x at %s addr 0x%x\n", asserted,
  2869. (bp->common.int_block == INT_BLOCK_HC) ? "HC" : "IGU", reg_addr);
  2870. REG_WR(bp, reg_addr, asserted);
  2871. /* now set back the mask */
  2872. if (asserted & ATTN_NIG_FOR_FUNC) {
  2873. REG_WR(bp, nig_int_mask_addr, nig_mask);
  2874. bnx2x_release_phy_lock(bp);
  2875. }
  2876. }
  2877. static inline void bnx2x_fan_failure(struct bnx2x *bp)
  2878. {
  2879. int port = BP_PORT(bp);
  2880. u32 ext_phy_config;
  2881. /* mark the failure */
  2882. ext_phy_config =
  2883. SHMEM_RD(bp,
  2884. dev_info.port_hw_config[port].external_phy_config);
  2885. ext_phy_config &= ~PORT_HW_CFG_XGXS_EXT_PHY_TYPE_MASK;
  2886. ext_phy_config |= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE;
  2887. SHMEM_WR(bp, dev_info.port_hw_config[port].external_phy_config,
  2888. ext_phy_config);
  2889. /* log the failure */
  2890. netdev_err(bp->dev, "Fan Failure on Network Controller has caused"
  2891. " the driver to shutdown the card to prevent permanent"
  2892. " damage. Please contact OEM Support for assistance\n");
  2893. /*
  2894. * Scheudle device reset (unload)
  2895. * This is due to some boards consuming sufficient power when driver is
  2896. * up to overheat if fan fails.
  2897. */
  2898. smp_mb__before_clear_bit();
  2899. set_bit(BNX2X_SP_RTNL_FAN_FAILURE, &bp->sp_rtnl_state);
  2900. smp_mb__after_clear_bit();
  2901. schedule_delayed_work(&bp->sp_rtnl_task, 0);
  2902. }
  2903. static inline void bnx2x_attn_int_deasserted0(struct bnx2x *bp, u32 attn)
  2904. {
  2905. int port = BP_PORT(bp);
  2906. int reg_offset;
  2907. u32 val;
  2908. reg_offset = (port ? MISC_REG_AEU_ENABLE1_FUNC_1_OUT_0 :
  2909. MISC_REG_AEU_ENABLE1_FUNC_0_OUT_0);
  2910. if (attn & AEU_INPUTS_ATTN_BITS_SPIO5) {
  2911. val = REG_RD(bp, reg_offset);
  2912. val &= ~AEU_INPUTS_ATTN_BITS_SPIO5;
  2913. REG_WR(bp, reg_offset, val);
  2914. BNX2X_ERR("SPIO5 hw attention\n");
  2915. /* Fan failure attention */
  2916. bnx2x_hw_reset_phy(&bp->link_params);
  2917. bnx2x_fan_failure(bp);
  2918. }
  2919. if ((attn & bp->link_vars.aeu_int_mask) && bp->port.pmf) {
  2920. bnx2x_acquire_phy_lock(bp);
  2921. bnx2x_handle_module_detect_int(&bp->link_params);
  2922. bnx2x_release_phy_lock(bp);
  2923. }
  2924. if (attn & HW_INTERRUT_ASSERT_SET_0) {
  2925. val = REG_RD(bp, reg_offset);
  2926. val &= ~(attn & HW_INTERRUT_ASSERT_SET_0);
  2927. REG_WR(bp, reg_offset, val);
  2928. BNX2X_ERR("FATAL HW block attention set0 0x%x\n",
  2929. (u32)(attn & HW_INTERRUT_ASSERT_SET_0));
  2930. bnx2x_panic();
  2931. }
  2932. }
  2933. static inline void bnx2x_attn_int_deasserted1(struct bnx2x *bp, u32 attn)
  2934. {
  2935. u32 val;
  2936. if (attn & AEU_INPUTS_ATTN_BITS_DOORBELLQ_HW_INTERRUPT) {
  2937. val = REG_RD(bp, DORQ_REG_DORQ_INT_STS_CLR);
  2938. BNX2X_ERR("DB hw attention 0x%x\n", val);
  2939. /* DORQ discard attention */
  2940. if (val & 0x2)
  2941. BNX2X_ERR("FATAL error from DORQ\n");
  2942. }
  2943. if (attn & HW_INTERRUT_ASSERT_SET_1) {
  2944. int port = BP_PORT(bp);
  2945. int reg_offset;
  2946. reg_offset = (port ? MISC_REG_AEU_ENABLE1_FUNC_1_OUT_1 :
  2947. MISC_REG_AEU_ENABLE1_FUNC_0_OUT_1);
  2948. val = REG_RD(bp, reg_offset);
  2949. val &= ~(attn & HW_INTERRUT_ASSERT_SET_1);
  2950. REG_WR(bp, reg_offset, val);
  2951. BNX2X_ERR("FATAL HW block attention set1 0x%x\n",
  2952. (u32)(attn & HW_INTERRUT_ASSERT_SET_1));
  2953. bnx2x_panic();
  2954. }
  2955. }
  2956. static inline void bnx2x_attn_int_deasserted2(struct bnx2x *bp, u32 attn)
  2957. {
  2958. u32 val;
  2959. if (attn & AEU_INPUTS_ATTN_BITS_CFC_HW_INTERRUPT) {
  2960. val = REG_RD(bp, CFC_REG_CFC_INT_STS_CLR);
  2961. BNX2X_ERR("CFC hw attention 0x%x\n", val);
  2962. /* CFC error attention */
  2963. if (val & 0x2)
  2964. BNX2X_ERR("FATAL error from CFC\n");
  2965. }
  2966. if (attn & AEU_INPUTS_ATTN_BITS_PXP_HW_INTERRUPT) {
  2967. val = REG_RD(bp, PXP_REG_PXP_INT_STS_CLR_0);
  2968. BNX2X_ERR("PXP hw attention-0 0x%x\n", val);
  2969. /* RQ_USDMDP_FIFO_OVERFLOW */
  2970. if (val & 0x18000)
  2971. BNX2X_ERR("FATAL error from PXP\n");
  2972. if (!CHIP_IS_E1x(bp)) {
  2973. val = REG_RD(bp, PXP_REG_PXP_INT_STS_CLR_1);
  2974. BNX2X_ERR("PXP hw attention-1 0x%x\n", val);
  2975. }
  2976. }
  2977. if (attn & HW_INTERRUT_ASSERT_SET_2) {
  2978. int port = BP_PORT(bp);
  2979. int reg_offset;
  2980. reg_offset = (port ? MISC_REG_AEU_ENABLE1_FUNC_1_OUT_2 :
  2981. MISC_REG_AEU_ENABLE1_FUNC_0_OUT_2);
  2982. val = REG_RD(bp, reg_offset);
  2983. val &= ~(attn & HW_INTERRUT_ASSERT_SET_2);
  2984. REG_WR(bp, reg_offset, val);
  2985. BNX2X_ERR("FATAL HW block attention set2 0x%x\n",
  2986. (u32)(attn & HW_INTERRUT_ASSERT_SET_2));
  2987. bnx2x_panic();
  2988. }
  2989. }
  2990. static inline void bnx2x_attn_int_deasserted3(struct bnx2x *bp, u32 attn)
  2991. {
  2992. u32 val;
  2993. if (attn & EVEREST_GEN_ATTN_IN_USE_MASK) {
  2994. if (attn & BNX2X_PMF_LINK_ASSERT) {
  2995. int func = BP_FUNC(bp);
  2996. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_12 + func*4, 0);
  2997. bp->mf_config[BP_VN(bp)] = MF_CFG_RD(bp,
  2998. func_mf_config[BP_ABS_FUNC(bp)].config);
  2999. val = SHMEM_RD(bp,
  3000. func_mb[BP_FW_MB_IDX(bp)].drv_status);
  3001. if (val & DRV_STATUS_DCC_EVENT_MASK)
  3002. bnx2x_dcc_event(bp,
  3003. (val & DRV_STATUS_DCC_EVENT_MASK));
  3004. if (val & DRV_STATUS_SET_MF_BW)
  3005. bnx2x_set_mf_bw(bp);
  3006. if (val & DRV_STATUS_DRV_INFO_REQ)
  3007. bnx2x_handle_drv_info_req(bp);
  3008. if ((bp->port.pmf == 0) && (val & DRV_STATUS_PMF))
  3009. bnx2x_pmf_update(bp);
  3010. if (bp->port.pmf &&
  3011. (val & DRV_STATUS_DCBX_NEGOTIATION_RESULTS) &&
  3012. bp->dcbx_enabled > 0)
  3013. /* start dcbx state machine */
  3014. bnx2x_dcbx_set_params(bp,
  3015. BNX2X_DCBX_STATE_NEG_RECEIVED);
  3016. if (bp->link_vars.periodic_flags &
  3017. PERIODIC_FLAGS_LINK_EVENT) {
  3018. /* sync with link */
  3019. bnx2x_acquire_phy_lock(bp);
  3020. bp->link_vars.periodic_flags &=
  3021. ~PERIODIC_FLAGS_LINK_EVENT;
  3022. bnx2x_release_phy_lock(bp);
  3023. if (IS_MF(bp))
  3024. bnx2x_link_sync_notify(bp);
  3025. bnx2x_link_report(bp);
  3026. }
  3027. /* Always call it here: bnx2x_link_report() will
  3028. * prevent the link indication duplication.
  3029. */
  3030. bnx2x__link_status_update(bp);
  3031. } else if (attn & BNX2X_MC_ASSERT_BITS) {
  3032. BNX2X_ERR("MC assert!\n");
  3033. bnx2x_mc_assert(bp);
  3034. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_10, 0);
  3035. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_9, 0);
  3036. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_8, 0);
  3037. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_7, 0);
  3038. bnx2x_panic();
  3039. } else if (attn & BNX2X_MCP_ASSERT) {
  3040. BNX2X_ERR("MCP assert!\n");
  3041. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_11, 0);
  3042. bnx2x_fw_dump(bp);
  3043. } else
  3044. BNX2X_ERR("Unknown HW assert! (attn 0x%x)\n", attn);
  3045. }
  3046. if (attn & EVEREST_LATCHED_ATTN_IN_USE_MASK) {
  3047. BNX2X_ERR("LATCHED attention 0x%08x (masked)\n", attn);
  3048. if (attn & BNX2X_GRC_TIMEOUT) {
  3049. val = CHIP_IS_E1(bp) ? 0 :
  3050. REG_RD(bp, MISC_REG_GRC_TIMEOUT_ATTN);
  3051. BNX2X_ERR("GRC time-out 0x%08x\n", val);
  3052. }
  3053. if (attn & BNX2X_GRC_RSV) {
  3054. val = CHIP_IS_E1(bp) ? 0 :
  3055. REG_RD(bp, MISC_REG_GRC_RSV_ATTN);
  3056. BNX2X_ERR("GRC reserved 0x%08x\n", val);
  3057. }
  3058. REG_WR(bp, MISC_REG_AEU_CLR_LATCH_SIGNAL, 0x7ff);
  3059. }
  3060. }
  3061. /*
  3062. * Bits map:
  3063. * 0-7 - Engine0 load counter.
  3064. * 8-15 - Engine1 load counter.
  3065. * 16 - Engine0 RESET_IN_PROGRESS bit.
  3066. * 17 - Engine1 RESET_IN_PROGRESS bit.
  3067. * 18 - Engine0 ONE_IS_LOADED. Set when there is at least one active function
  3068. * on the engine
  3069. * 19 - Engine1 ONE_IS_LOADED.
  3070. * 20 - Chip reset flow bit. When set none-leader must wait for both engines
  3071. * leader to complete (check for both RESET_IN_PROGRESS bits and not for
  3072. * just the one belonging to its engine).
  3073. *
  3074. */
  3075. #define BNX2X_RECOVERY_GLOB_REG MISC_REG_GENERIC_POR_1
  3076. #define BNX2X_PATH0_LOAD_CNT_MASK 0x000000ff
  3077. #define BNX2X_PATH0_LOAD_CNT_SHIFT 0
  3078. #define BNX2X_PATH1_LOAD_CNT_MASK 0x0000ff00
  3079. #define BNX2X_PATH1_LOAD_CNT_SHIFT 8
  3080. #define BNX2X_PATH0_RST_IN_PROG_BIT 0x00010000
  3081. #define BNX2X_PATH1_RST_IN_PROG_BIT 0x00020000
  3082. #define BNX2X_GLOBAL_RESET_BIT 0x00040000
  3083. /*
  3084. * Set the GLOBAL_RESET bit.
  3085. *
  3086. * Should be run under rtnl lock
  3087. */
  3088. void bnx2x_set_reset_global(struct bnx2x *bp)
  3089. {
  3090. u32 val;
  3091. bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_RECOVERY_REG);
  3092. val = REG_RD(bp, BNX2X_RECOVERY_GLOB_REG);
  3093. REG_WR(bp, BNX2X_RECOVERY_GLOB_REG, val | BNX2X_GLOBAL_RESET_BIT);
  3094. bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_RECOVERY_REG);
  3095. }
  3096. /*
  3097. * Clear the GLOBAL_RESET bit.
  3098. *
  3099. * Should be run under rtnl lock
  3100. */
  3101. static inline void bnx2x_clear_reset_global(struct bnx2x *bp)
  3102. {
  3103. u32 val;
  3104. bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_RECOVERY_REG);
  3105. val = REG_RD(bp, BNX2X_RECOVERY_GLOB_REG);
  3106. REG_WR(bp, BNX2X_RECOVERY_GLOB_REG, val & (~BNX2X_GLOBAL_RESET_BIT));
  3107. bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_RECOVERY_REG);
  3108. }
  3109. /*
  3110. * Checks the GLOBAL_RESET bit.
  3111. *
  3112. * should be run under rtnl lock
  3113. */
  3114. static inline bool bnx2x_reset_is_global(struct bnx2x *bp)
  3115. {
  3116. u32 val = REG_RD(bp, BNX2X_RECOVERY_GLOB_REG);
  3117. DP(NETIF_MSG_HW, "GEN_REG_VAL=0x%08x\n", val);
  3118. return (val & BNX2X_GLOBAL_RESET_BIT) ? true : false;
  3119. }
  3120. /*
  3121. * Clear RESET_IN_PROGRESS bit for the current engine.
  3122. *
  3123. * Should be run under rtnl lock
  3124. */
  3125. static inline void bnx2x_set_reset_done(struct bnx2x *bp)
  3126. {
  3127. u32 val;
  3128. u32 bit = BP_PATH(bp) ?
  3129. BNX2X_PATH1_RST_IN_PROG_BIT : BNX2X_PATH0_RST_IN_PROG_BIT;
  3130. bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_RECOVERY_REG);
  3131. val = REG_RD(bp, BNX2X_RECOVERY_GLOB_REG);
  3132. /* Clear the bit */
  3133. val &= ~bit;
  3134. REG_WR(bp, BNX2X_RECOVERY_GLOB_REG, val);
  3135. bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_RECOVERY_REG);
  3136. }
  3137. /*
  3138. * Set RESET_IN_PROGRESS for the current engine.
  3139. *
  3140. * should be run under rtnl lock
  3141. */
  3142. void bnx2x_set_reset_in_progress(struct bnx2x *bp)
  3143. {
  3144. u32 val;
  3145. u32 bit = BP_PATH(bp) ?
  3146. BNX2X_PATH1_RST_IN_PROG_BIT : BNX2X_PATH0_RST_IN_PROG_BIT;
  3147. bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_RECOVERY_REG);
  3148. val = REG_RD(bp, BNX2X_RECOVERY_GLOB_REG);
  3149. /* Set the bit */
  3150. val |= bit;
  3151. REG_WR(bp, BNX2X_RECOVERY_GLOB_REG, val);
  3152. bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_RECOVERY_REG);
  3153. }
  3154. /*
  3155. * Checks the RESET_IN_PROGRESS bit for the given engine.
  3156. * should be run under rtnl lock
  3157. */
  3158. bool bnx2x_reset_is_done(struct bnx2x *bp, int engine)
  3159. {
  3160. u32 val = REG_RD(bp, BNX2X_RECOVERY_GLOB_REG);
  3161. u32 bit = engine ?
  3162. BNX2X_PATH1_RST_IN_PROG_BIT : BNX2X_PATH0_RST_IN_PROG_BIT;
  3163. /* return false if bit is set */
  3164. return (val & bit) ? false : true;
  3165. }
  3166. /*
  3167. * set pf load for the current pf.
  3168. *
  3169. * should be run under rtnl lock
  3170. */
  3171. void bnx2x_set_pf_load(struct bnx2x *bp)
  3172. {
  3173. u32 val1, val;
  3174. u32 mask = BP_PATH(bp) ? BNX2X_PATH1_LOAD_CNT_MASK :
  3175. BNX2X_PATH0_LOAD_CNT_MASK;
  3176. u32 shift = BP_PATH(bp) ? BNX2X_PATH1_LOAD_CNT_SHIFT :
  3177. BNX2X_PATH0_LOAD_CNT_SHIFT;
  3178. bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_RECOVERY_REG);
  3179. val = REG_RD(bp, BNX2X_RECOVERY_GLOB_REG);
  3180. DP(NETIF_MSG_HW, "Old GEN_REG_VAL=0x%08x\n", val);
  3181. /* get the current counter value */
  3182. val1 = (val & mask) >> shift;
  3183. /* set bit of that PF */
  3184. val1 |= (1 << bp->pf_num);
  3185. /* clear the old value */
  3186. val &= ~mask;
  3187. /* set the new one */
  3188. val |= ((val1 << shift) & mask);
  3189. REG_WR(bp, BNX2X_RECOVERY_GLOB_REG, val);
  3190. bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_RECOVERY_REG);
  3191. }
  3192. /**
  3193. * bnx2x_clear_pf_load - clear pf load mark
  3194. *
  3195. * @bp: driver handle
  3196. *
  3197. * Should be run under rtnl lock.
  3198. * Decrements the load counter for the current engine. Returns
  3199. * whether other functions are still loaded
  3200. */
  3201. bool bnx2x_clear_pf_load(struct bnx2x *bp)
  3202. {
  3203. u32 val1, val;
  3204. u32 mask = BP_PATH(bp) ? BNX2X_PATH1_LOAD_CNT_MASK :
  3205. BNX2X_PATH0_LOAD_CNT_MASK;
  3206. u32 shift = BP_PATH(bp) ? BNX2X_PATH1_LOAD_CNT_SHIFT :
  3207. BNX2X_PATH0_LOAD_CNT_SHIFT;
  3208. bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_RECOVERY_REG);
  3209. val = REG_RD(bp, BNX2X_RECOVERY_GLOB_REG);
  3210. DP(NETIF_MSG_HW, "Old GEN_REG_VAL=0x%08x\n", val);
  3211. /* get the current counter value */
  3212. val1 = (val & mask) >> shift;
  3213. /* clear bit of that PF */
  3214. val1 &= ~(1 << bp->pf_num);
  3215. /* clear the old value */
  3216. val &= ~mask;
  3217. /* set the new one */
  3218. val |= ((val1 << shift) & mask);
  3219. REG_WR(bp, BNX2X_RECOVERY_GLOB_REG, val);
  3220. bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_RECOVERY_REG);
  3221. return val1 != 0;
  3222. }
  3223. /*
  3224. * Read the load status for the current engine.
  3225. *
  3226. * should be run under rtnl lock
  3227. */
  3228. static inline bool bnx2x_get_load_status(struct bnx2x *bp, int engine)
  3229. {
  3230. u32 mask = (engine ? BNX2X_PATH1_LOAD_CNT_MASK :
  3231. BNX2X_PATH0_LOAD_CNT_MASK);
  3232. u32 shift = (engine ? BNX2X_PATH1_LOAD_CNT_SHIFT :
  3233. BNX2X_PATH0_LOAD_CNT_SHIFT);
  3234. u32 val = REG_RD(bp, BNX2X_RECOVERY_GLOB_REG);
  3235. DP(NETIF_MSG_HW, "GLOB_REG=0x%08x\n", val);
  3236. val = (val & mask) >> shift;
  3237. DP(NETIF_MSG_HW, "load mask for engine %d = 0x%x\n", engine, val);
  3238. return val != 0;
  3239. }
  3240. /*
  3241. * Reset the load status for the current engine.
  3242. */
  3243. static inline void bnx2x_clear_load_status(struct bnx2x *bp)
  3244. {
  3245. u32 val;
  3246. u32 mask = (BP_PATH(bp) ? BNX2X_PATH1_LOAD_CNT_MASK :
  3247. BNX2X_PATH0_LOAD_CNT_MASK);
  3248. bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_RECOVERY_REG);
  3249. val = REG_RD(bp, BNX2X_RECOVERY_GLOB_REG);
  3250. REG_WR(bp, BNX2X_RECOVERY_GLOB_REG, val & (~mask));
  3251. bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_RECOVERY_REG);
  3252. }
  3253. static inline void _print_next_block(int idx, const char *blk)
  3254. {
  3255. pr_cont("%s%s", idx ? ", " : "", blk);
  3256. }
  3257. static inline int bnx2x_check_blocks_with_parity0(u32 sig, int par_num,
  3258. bool print)
  3259. {
  3260. int i = 0;
  3261. u32 cur_bit = 0;
  3262. for (i = 0; sig; i++) {
  3263. cur_bit = ((u32)0x1 << i);
  3264. if (sig & cur_bit) {
  3265. switch (cur_bit) {
  3266. case AEU_INPUTS_ATTN_BITS_BRB_PARITY_ERROR:
  3267. if (print)
  3268. _print_next_block(par_num++, "BRB");
  3269. break;
  3270. case AEU_INPUTS_ATTN_BITS_PARSER_PARITY_ERROR:
  3271. if (print)
  3272. _print_next_block(par_num++, "PARSER");
  3273. break;
  3274. case AEU_INPUTS_ATTN_BITS_TSDM_PARITY_ERROR:
  3275. if (print)
  3276. _print_next_block(par_num++, "TSDM");
  3277. break;
  3278. case AEU_INPUTS_ATTN_BITS_SEARCHER_PARITY_ERROR:
  3279. if (print)
  3280. _print_next_block(par_num++,
  3281. "SEARCHER");
  3282. break;
  3283. case AEU_INPUTS_ATTN_BITS_TCM_PARITY_ERROR:
  3284. if (print)
  3285. _print_next_block(par_num++, "TCM");
  3286. break;
  3287. case AEU_INPUTS_ATTN_BITS_TSEMI_PARITY_ERROR:
  3288. if (print)
  3289. _print_next_block(par_num++, "TSEMI");
  3290. break;
  3291. case AEU_INPUTS_ATTN_BITS_PBCLIENT_PARITY_ERROR:
  3292. if (print)
  3293. _print_next_block(par_num++, "XPB");
  3294. break;
  3295. }
  3296. /* Clear the bit */
  3297. sig &= ~cur_bit;
  3298. }
  3299. }
  3300. return par_num;
  3301. }
  3302. static inline int bnx2x_check_blocks_with_parity1(u32 sig, int par_num,
  3303. bool *global, bool print)
  3304. {
  3305. int i = 0;
  3306. u32 cur_bit = 0;
  3307. for (i = 0; sig; i++) {
  3308. cur_bit = ((u32)0x1 << i);
  3309. if (sig & cur_bit) {
  3310. switch (cur_bit) {
  3311. case AEU_INPUTS_ATTN_BITS_PBF_PARITY_ERROR:
  3312. if (print)
  3313. _print_next_block(par_num++, "PBF");
  3314. break;
  3315. case AEU_INPUTS_ATTN_BITS_QM_PARITY_ERROR:
  3316. if (print)
  3317. _print_next_block(par_num++, "QM");
  3318. break;
  3319. case AEU_INPUTS_ATTN_BITS_TIMERS_PARITY_ERROR:
  3320. if (print)
  3321. _print_next_block(par_num++, "TM");
  3322. break;
  3323. case AEU_INPUTS_ATTN_BITS_XSDM_PARITY_ERROR:
  3324. if (print)
  3325. _print_next_block(par_num++, "XSDM");
  3326. break;
  3327. case AEU_INPUTS_ATTN_BITS_XCM_PARITY_ERROR:
  3328. if (print)
  3329. _print_next_block(par_num++, "XCM");
  3330. break;
  3331. case AEU_INPUTS_ATTN_BITS_XSEMI_PARITY_ERROR:
  3332. if (print)
  3333. _print_next_block(par_num++, "XSEMI");
  3334. break;
  3335. case AEU_INPUTS_ATTN_BITS_DOORBELLQ_PARITY_ERROR:
  3336. if (print)
  3337. _print_next_block(par_num++,
  3338. "DOORBELLQ");
  3339. break;
  3340. case AEU_INPUTS_ATTN_BITS_NIG_PARITY_ERROR:
  3341. if (print)
  3342. _print_next_block(par_num++, "NIG");
  3343. break;
  3344. case AEU_INPUTS_ATTN_BITS_VAUX_PCI_CORE_PARITY_ERROR:
  3345. if (print)
  3346. _print_next_block(par_num++,
  3347. "VAUX PCI CORE");
  3348. *global = true;
  3349. break;
  3350. case AEU_INPUTS_ATTN_BITS_DEBUG_PARITY_ERROR:
  3351. if (print)
  3352. _print_next_block(par_num++, "DEBUG");
  3353. break;
  3354. case AEU_INPUTS_ATTN_BITS_USDM_PARITY_ERROR:
  3355. if (print)
  3356. _print_next_block(par_num++, "USDM");
  3357. break;
  3358. case AEU_INPUTS_ATTN_BITS_UCM_PARITY_ERROR:
  3359. if (print)
  3360. _print_next_block(par_num++, "UCM");
  3361. break;
  3362. case AEU_INPUTS_ATTN_BITS_USEMI_PARITY_ERROR:
  3363. if (print)
  3364. _print_next_block(par_num++, "USEMI");
  3365. break;
  3366. case AEU_INPUTS_ATTN_BITS_UPB_PARITY_ERROR:
  3367. if (print)
  3368. _print_next_block(par_num++, "UPB");
  3369. break;
  3370. case AEU_INPUTS_ATTN_BITS_CSDM_PARITY_ERROR:
  3371. if (print)
  3372. _print_next_block(par_num++, "CSDM");
  3373. break;
  3374. case AEU_INPUTS_ATTN_BITS_CCM_PARITY_ERROR:
  3375. if (print)
  3376. _print_next_block(par_num++, "CCM");
  3377. break;
  3378. }
  3379. /* Clear the bit */
  3380. sig &= ~cur_bit;
  3381. }
  3382. }
  3383. return par_num;
  3384. }
  3385. static inline int bnx2x_check_blocks_with_parity2(u32 sig, int par_num,
  3386. bool print)
  3387. {
  3388. int i = 0;
  3389. u32 cur_bit = 0;
  3390. for (i = 0; sig; i++) {
  3391. cur_bit = ((u32)0x1 << i);
  3392. if (sig & cur_bit) {
  3393. switch (cur_bit) {
  3394. case AEU_INPUTS_ATTN_BITS_CSEMI_PARITY_ERROR:
  3395. if (print)
  3396. _print_next_block(par_num++, "CSEMI");
  3397. break;
  3398. case AEU_INPUTS_ATTN_BITS_PXP_PARITY_ERROR:
  3399. if (print)
  3400. _print_next_block(par_num++, "PXP");
  3401. break;
  3402. case AEU_IN_ATTN_BITS_PXPPCICLOCKCLIENT_PARITY_ERROR:
  3403. if (print)
  3404. _print_next_block(par_num++,
  3405. "PXPPCICLOCKCLIENT");
  3406. break;
  3407. case AEU_INPUTS_ATTN_BITS_CFC_PARITY_ERROR:
  3408. if (print)
  3409. _print_next_block(par_num++, "CFC");
  3410. break;
  3411. case AEU_INPUTS_ATTN_BITS_CDU_PARITY_ERROR:
  3412. if (print)
  3413. _print_next_block(par_num++, "CDU");
  3414. break;
  3415. case AEU_INPUTS_ATTN_BITS_DMAE_PARITY_ERROR:
  3416. if (print)
  3417. _print_next_block(par_num++, "DMAE");
  3418. break;
  3419. case AEU_INPUTS_ATTN_BITS_IGU_PARITY_ERROR:
  3420. if (print)
  3421. _print_next_block(par_num++, "IGU");
  3422. break;
  3423. case AEU_INPUTS_ATTN_BITS_MISC_PARITY_ERROR:
  3424. if (print)
  3425. _print_next_block(par_num++, "MISC");
  3426. break;
  3427. }
  3428. /* Clear the bit */
  3429. sig &= ~cur_bit;
  3430. }
  3431. }
  3432. return par_num;
  3433. }
  3434. static inline int bnx2x_check_blocks_with_parity3(u32 sig, int par_num,
  3435. bool *global, bool print)
  3436. {
  3437. int i = 0;
  3438. u32 cur_bit = 0;
  3439. for (i = 0; sig; i++) {
  3440. cur_bit = ((u32)0x1 << i);
  3441. if (sig & cur_bit) {
  3442. switch (cur_bit) {
  3443. case AEU_INPUTS_ATTN_BITS_MCP_LATCHED_ROM_PARITY:
  3444. if (print)
  3445. _print_next_block(par_num++, "MCP ROM");
  3446. *global = true;
  3447. break;
  3448. case AEU_INPUTS_ATTN_BITS_MCP_LATCHED_UMP_RX_PARITY:
  3449. if (print)
  3450. _print_next_block(par_num++,
  3451. "MCP UMP RX");
  3452. *global = true;
  3453. break;
  3454. case AEU_INPUTS_ATTN_BITS_MCP_LATCHED_UMP_TX_PARITY:
  3455. if (print)
  3456. _print_next_block(par_num++,
  3457. "MCP UMP TX");
  3458. *global = true;
  3459. break;
  3460. case AEU_INPUTS_ATTN_BITS_MCP_LATCHED_SCPAD_PARITY:
  3461. if (print)
  3462. _print_next_block(par_num++,
  3463. "MCP SCPAD");
  3464. *global = true;
  3465. break;
  3466. }
  3467. /* Clear the bit */
  3468. sig &= ~cur_bit;
  3469. }
  3470. }
  3471. return par_num;
  3472. }
  3473. static inline int bnx2x_check_blocks_with_parity4(u32 sig, int par_num,
  3474. bool print)
  3475. {
  3476. int i = 0;
  3477. u32 cur_bit = 0;
  3478. for (i = 0; sig; i++) {
  3479. cur_bit = ((u32)0x1 << i);
  3480. if (sig & cur_bit) {
  3481. switch (cur_bit) {
  3482. case AEU_INPUTS_ATTN_BITS_PGLUE_PARITY_ERROR:
  3483. if (print)
  3484. _print_next_block(par_num++, "PGLUE_B");
  3485. break;
  3486. case AEU_INPUTS_ATTN_BITS_ATC_PARITY_ERROR:
  3487. if (print)
  3488. _print_next_block(par_num++, "ATC");
  3489. break;
  3490. }
  3491. /* Clear the bit */
  3492. sig &= ~cur_bit;
  3493. }
  3494. }
  3495. return par_num;
  3496. }
  3497. static inline bool bnx2x_parity_attn(struct bnx2x *bp, bool *global, bool print,
  3498. u32 *sig)
  3499. {
  3500. if ((sig[0] & HW_PRTY_ASSERT_SET_0) ||
  3501. (sig[1] & HW_PRTY_ASSERT_SET_1) ||
  3502. (sig[2] & HW_PRTY_ASSERT_SET_2) ||
  3503. (sig[3] & HW_PRTY_ASSERT_SET_3) ||
  3504. (sig[4] & HW_PRTY_ASSERT_SET_4)) {
  3505. int par_num = 0;
  3506. DP(NETIF_MSG_HW, "Was parity error: HW block parity attention: "
  3507. "[0]:0x%08x [1]:0x%08x [2]:0x%08x [3]:0x%08x "
  3508. "[4]:0x%08x\n",
  3509. sig[0] & HW_PRTY_ASSERT_SET_0,
  3510. sig[1] & HW_PRTY_ASSERT_SET_1,
  3511. sig[2] & HW_PRTY_ASSERT_SET_2,
  3512. sig[3] & HW_PRTY_ASSERT_SET_3,
  3513. sig[4] & HW_PRTY_ASSERT_SET_4);
  3514. if (print)
  3515. netdev_err(bp->dev,
  3516. "Parity errors detected in blocks: ");
  3517. par_num = bnx2x_check_blocks_with_parity0(
  3518. sig[0] & HW_PRTY_ASSERT_SET_0, par_num, print);
  3519. par_num = bnx2x_check_blocks_with_parity1(
  3520. sig[1] & HW_PRTY_ASSERT_SET_1, par_num, global, print);
  3521. par_num = bnx2x_check_blocks_with_parity2(
  3522. sig[2] & HW_PRTY_ASSERT_SET_2, par_num, print);
  3523. par_num = bnx2x_check_blocks_with_parity3(
  3524. sig[3] & HW_PRTY_ASSERT_SET_3, par_num, global, print);
  3525. par_num = bnx2x_check_blocks_with_parity4(
  3526. sig[4] & HW_PRTY_ASSERT_SET_4, par_num, print);
  3527. if (print)
  3528. pr_cont("\n");
  3529. return true;
  3530. } else
  3531. return false;
  3532. }
  3533. /**
  3534. * bnx2x_chk_parity_attn - checks for parity attentions.
  3535. *
  3536. * @bp: driver handle
  3537. * @global: true if there was a global attention
  3538. * @print: show parity attention in syslog
  3539. */
  3540. bool bnx2x_chk_parity_attn(struct bnx2x *bp, bool *global, bool print)
  3541. {
  3542. struct attn_route attn = { {0} };
  3543. int port = BP_PORT(bp);
  3544. attn.sig[0] = REG_RD(bp,
  3545. MISC_REG_AEU_AFTER_INVERT_1_FUNC_0 +
  3546. port*4);
  3547. attn.sig[1] = REG_RD(bp,
  3548. MISC_REG_AEU_AFTER_INVERT_2_FUNC_0 +
  3549. port*4);
  3550. attn.sig[2] = REG_RD(bp,
  3551. MISC_REG_AEU_AFTER_INVERT_3_FUNC_0 +
  3552. port*4);
  3553. attn.sig[3] = REG_RD(bp,
  3554. MISC_REG_AEU_AFTER_INVERT_4_FUNC_0 +
  3555. port*4);
  3556. if (!CHIP_IS_E1x(bp))
  3557. attn.sig[4] = REG_RD(bp,
  3558. MISC_REG_AEU_AFTER_INVERT_5_FUNC_0 +
  3559. port*4);
  3560. return bnx2x_parity_attn(bp, global, print, attn.sig);
  3561. }
  3562. static inline void bnx2x_attn_int_deasserted4(struct bnx2x *bp, u32 attn)
  3563. {
  3564. u32 val;
  3565. if (attn & AEU_INPUTS_ATTN_BITS_PGLUE_HW_INTERRUPT) {
  3566. val = REG_RD(bp, PGLUE_B_REG_PGLUE_B_INT_STS_CLR);
  3567. BNX2X_ERR("PGLUE hw attention 0x%x\n", val);
  3568. if (val & PGLUE_B_PGLUE_B_INT_STS_REG_ADDRESS_ERROR)
  3569. BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
  3570. "ADDRESS_ERROR\n");
  3571. if (val & PGLUE_B_PGLUE_B_INT_STS_REG_INCORRECT_RCV_BEHAVIOR)
  3572. BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
  3573. "INCORRECT_RCV_BEHAVIOR\n");
  3574. if (val & PGLUE_B_PGLUE_B_INT_STS_REG_WAS_ERROR_ATTN)
  3575. BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
  3576. "WAS_ERROR_ATTN\n");
  3577. if (val & PGLUE_B_PGLUE_B_INT_STS_REG_VF_LENGTH_VIOLATION_ATTN)
  3578. BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
  3579. "VF_LENGTH_VIOLATION_ATTN\n");
  3580. if (val &
  3581. PGLUE_B_PGLUE_B_INT_STS_REG_VF_GRC_SPACE_VIOLATION_ATTN)
  3582. BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
  3583. "VF_GRC_SPACE_VIOLATION_ATTN\n");
  3584. if (val &
  3585. PGLUE_B_PGLUE_B_INT_STS_REG_VF_MSIX_BAR_VIOLATION_ATTN)
  3586. BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
  3587. "VF_MSIX_BAR_VIOLATION_ATTN\n");
  3588. if (val & PGLUE_B_PGLUE_B_INT_STS_REG_TCPL_ERROR_ATTN)
  3589. BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
  3590. "TCPL_ERROR_ATTN\n");
  3591. if (val & PGLUE_B_PGLUE_B_INT_STS_REG_TCPL_IN_TWO_RCBS_ATTN)
  3592. BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
  3593. "TCPL_IN_TWO_RCBS_ATTN\n");
  3594. if (val & PGLUE_B_PGLUE_B_INT_STS_REG_CSSNOOP_FIFO_OVERFLOW)
  3595. BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
  3596. "CSSNOOP_FIFO_OVERFLOW\n");
  3597. }
  3598. if (attn & AEU_INPUTS_ATTN_BITS_ATC_HW_INTERRUPT) {
  3599. val = REG_RD(bp, ATC_REG_ATC_INT_STS_CLR);
  3600. BNX2X_ERR("ATC hw attention 0x%x\n", val);
  3601. if (val & ATC_ATC_INT_STS_REG_ADDRESS_ERROR)
  3602. BNX2X_ERR("ATC_ATC_INT_STS_REG_ADDRESS_ERROR\n");
  3603. if (val & ATC_ATC_INT_STS_REG_ATC_TCPL_TO_NOT_PEND)
  3604. BNX2X_ERR("ATC_ATC_INT_STS_REG"
  3605. "_ATC_TCPL_TO_NOT_PEND\n");
  3606. if (val & ATC_ATC_INT_STS_REG_ATC_GPA_MULTIPLE_HITS)
  3607. BNX2X_ERR("ATC_ATC_INT_STS_REG_"
  3608. "ATC_GPA_MULTIPLE_HITS\n");
  3609. if (val & ATC_ATC_INT_STS_REG_ATC_RCPL_TO_EMPTY_CNT)
  3610. BNX2X_ERR("ATC_ATC_INT_STS_REG_"
  3611. "ATC_RCPL_TO_EMPTY_CNT\n");
  3612. if (val & ATC_ATC_INT_STS_REG_ATC_TCPL_ERROR)
  3613. BNX2X_ERR("ATC_ATC_INT_STS_REG_ATC_TCPL_ERROR\n");
  3614. if (val & ATC_ATC_INT_STS_REG_ATC_IREQ_LESS_THAN_STU)
  3615. BNX2X_ERR("ATC_ATC_INT_STS_REG_"
  3616. "ATC_IREQ_LESS_THAN_STU\n");
  3617. }
  3618. if (attn & (AEU_INPUTS_ATTN_BITS_PGLUE_PARITY_ERROR |
  3619. AEU_INPUTS_ATTN_BITS_ATC_PARITY_ERROR)) {
  3620. BNX2X_ERR("FATAL parity attention set4 0x%x\n",
  3621. (u32)(attn & (AEU_INPUTS_ATTN_BITS_PGLUE_PARITY_ERROR |
  3622. AEU_INPUTS_ATTN_BITS_ATC_PARITY_ERROR)));
  3623. }
  3624. }
  3625. static void bnx2x_attn_int_deasserted(struct bnx2x *bp, u32 deasserted)
  3626. {
  3627. struct attn_route attn, *group_mask;
  3628. int port = BP_PORT(bp);
  3629. int index;
  3630. u32 reg_addr;
  3631. u32 val;
  3632. u32 aeu_mask;
  3633. bool global = false;
  3634. /* need to take HW lock because MCP or other port might also
  3635. try to handle this event */
  3636. bnx2x_acquire_alr(bp);
  3637. if (bnx2x_chk_parity_attn(bp, &global, true)) {
  3638. #ifndef BNX2X_STOP_ON_ERROR
  3639. bp->recovery_state = BNX2X_RECOVERY_INIT;
  3640. schedule_delayed_work(&bp->sp_rtnl_task, 0);
  3641. /* Disable HW interrupts */
  3642. bnx2x_int_disable(bp);
  3643. /* In case of parity errors don't handle attentions so that
  3644. * other function would "see" parity errors.
  3645. */
  3646. #else
  3647. bnx2x_panic();
  3648. #endif
  3649. bnx2x_release_alr(bp);
  3650. return;
  3651. }
  3652. attn.sig[0] = REG_RD(bp, MISC_REG_AEU_AFTER_INVERT_1_FUNC_0 + port*4);
  3653. attn.sig[1] = REG_RD(bp, MISC_REG_AEU_AFTER_INVERT_2_FUNC_0 + port*4);
  3654. attn.sig[2] = REG_RD(bp, MISC_REG_AEU_AFTER_INVERT_3_FUNC_0 + port*4);
  3655. attn.sig[3] = REG_RD(bp, MISC_REG_AEU_AFTER_INVERT_4_FUNC_0 + port*4);
  3656. if (!CHIP_IS_E1x(bp))
  3657. attn.sig[4] =
  3658. REG_RD(bp, MISC_REG_AEU_AFTER_INVERT_5_FUNC_0 + port*4);
  3659. else
  3660. attn.sig[4] = 0;
  3661. DP(NETIF_MSG_HW, "attn: %08x %08x %08x %08x %08x\n",
  3662. attn.sig[0], attn.sig[1], attn.sig[2], attn.sig[3], attn.sig[4]);
  3663. for (index = 0; index < MAX_DYNAMIC_ATTN_GRPS; index++) {
  3664. if (deasserted & (1 << index)) {
  3665. group_mask = &bp->attn_group[index];
  3666. DP(NETIF_MSG_HW, "group[%d]: %08x %08x "
  3667. "%08x %08x %08x\n",
  3668. index,
  3669. group_mask->sig[0], group_mask->sig[1],
  3670. group_mask->sig[2], group_mask->sig[3],
  3671. group_mask->sig[4]);
  3672. bnx2x_attn_int_deasserted4(bp,
  3673. attn.sig[4] & group_mask->sig[4]);
  3674. bnx2x_attn_int_deasserted3(bp,
  3675. attn.sig[3] & group_mask->sig[3]);
  3676. bnx2x_attn_int_deasserted1(bp,
  3677. attn.sig[1] & group_mask->sig[1]);
  3678. bnx2x_attn_int_deasserted2(bp,
  3679. attn.sig[2] & group_mask->sig[2]);
  3680. bnx2x_attn_int_deasserted0(bp,
  3681. attn.sig[0] & group_mask->sig[0]);
  3682. }
  3683. }
  3684. bnx2x_release_alr(bp);
  3685. if (bp->common.int_block == INT_BLOCK_HC)
  3686. reg_addr = (HC_REG_COMMAND_REG + port*32 +
  3687. COMMAND_REG_ATTN_BITS_CLR);
  3688. else
  3689. reg_addr = (BAR_IGU_INTMEM + IGU_CMD_ATTN_BIT_CLR_UPPER*8);
  3690. val = ~deasserted;
  3691. DP(NETIF_MSG_HW, "about to mask 0x%08x at %s addr 0x%x\n", val,
  3692. (bp->common.int_block == INT_BLOCK_HC) ? "HC" : "IGU", reg_addr);
  3693. REG_WR(bp, reg_addr, val);
  3694. if (~bp->attn_state & deasserted)
  3695. BNX2X_ERR("IGU ERROR\n");
  3696. reg_addr = port ? MISC_REG_AEU_MASK_ATTN_FUNC_1 :
  3697. MISC_REG_AEU_MASK_ATTN_FUNC_0;
  3698. bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_PORT0_ATT_MASK + port);
  3699. aeu_mask = REG_RD(bp, reg_addr);
  3700. DP(NETIF_MSG_HW, "aeu_mask %x newly deasserted %x\n",
  3701. aeu_mask, deasserted);
  3702. aeu_mask |= (deasserted & 0x3ff);
  3703. DP(NETIF_MSG_HW, "new mask %x\n", aeu_mask);
  3704. REG_WR(bp, reg_addr, aeu_mask);
  3705. bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_PORT0_ATT_MASK + port);
  3706. DP(NETIF_MSG_HW, "attn_state %x\n", bp->attn_state);
  3707. bp->attn_state &= ~deasserted;
  3708. DP(NETIF_MSG_HW, "new state %x\n", bp->attn_state);
  3709. }
  3710. static void bnx2x_attn_int(struct bnx2x *bp)
  3711. {
  3712. /* read local copy of bits */
  3713. u32 attn_bits = le32_to_cpu(bp->def_status_blk->atten_status_block.
  3714. attn_bits);
  3715. u32 attn_ack = le32_to_cpu(bp->def_status_blk->atten_status_block.
  3716. attn_bits_ack);
  3717. u32 attn_state = bp->attn_state;
  3718. /* look for changed bits */
  3719. u32 asserted = attn_bits & ~attn_ack & ~attn_state;
  3720. u32 deasserted = ~attn_bits & attn_ack & attn_state;
  3721. DP(NETIF_MSG_HW,
  3722. "attn_bits %x attn_ack %x asserted %x deasserted %x\n",
  3723. attn_bits, attn_ack, asserted, deasserted);
  3724. if (~(attn_bits ^ attn_ack) & (attn_bits ^ attn_state))
  3725. BNX2X_ERR("BAD attention state\n");
  3726. /* handle bits that were raised */
  3727. if (asserted)
  3728. bnx2x_attn_int_asserted(bp, asserted);
  3729. if (deasserted)
  3730. bnx2x_attn_int_deasserted(bp, deasserted);
  3731. }
  3732. void bnx2x_igu_ack_sb(struct bnx2x *bp, u8 igu_sb_id, u8 segment,
  3733. u16 index, u8 op, u8 update)
  3734. {
  3735. u32 igu_addr = BAR_IGU_INTMEM + (IGU_CMD_INT_ACK_BASE + igu_sb_id)*8;
  3736. bnx2x_igu_ack_sb_gen(bp, igu_sb_id, segment, index, op, update,
  3737. igu_addr);
  3738. }
  3739. static inline void bnx2x_update_eq_prod(struct bnx2x *bp, u16 prod)
  3740. {
  3741. /* No memory barriers */
  3742. storm_memset_eq_prod(bp, prod, BP_FUNC(bp));
  3743. mmiowb(); /* keep prod updates ordered */
  3744. }
  3745. #ifdef BCM_CNIC
  3746. static int bnx2x_cnic_handle_cfc_del(struct bnx2x *bp, u32 cid,
  3747. union event_ring_elem *elem)
  3748. {
  3749. u8 err = elem->message.error;
  3750. if (!bp->cnic_eth_dev.starting_cid ||
  3751. (cid < bp->cnic_eth_dev.starting_cid &&
  3752. cid != bp->cnic_eth_dev.iscsi_l2_cid))
  3753. return 1;
  3754. DP(BNX2X_MSG_SP, "got delete ramrod for CNIC CID %d\n", cid);
  3755. if (unlikely(err)) {
  3756. BNX2X_ERR("got delete ramrod for CNIC CID %d with error!\n",
  3757. cid);
  3758. bnx2x_panic_dump(bp);
  3759. }
  3760. bnx2x_cnic_cfc_comp(bp, cid, err);
  3761. return 0;
  3762. }
  3763. #endif
  3764. static inline void bnx2x_handle_mcast_eqe(struct bnx2x *bp)
  3765. {
  3766. struct bnx2x_mcast_ramrod_params rparam;
  3767. int rc;
  3768. memset(&rparam, 0, sizeof(rparam));
  3769. rparam.mcast_obj = &bp->mcast_obj;
  3770. netif_addr_lock_bh(bp->dev);
  3771. /* Clear pending state for the last command */
  3772. bp->mcast_obj.raw.clear_pending(&bp->mcast_obj.raw);
  3773. /* If there are pending mcast commands - send them */
  3774. if (bp->mcast_obj.check_pending(&bp->mcast_obj)) {
  3775. rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT);
  3776. if (rc < 0)
  3777. BNX2X_ERR("Failed to send pending mcast commands: %d\n",
  3778. rc);
  3779. }
  3780. netif_addr_unlock_bh(bp->dev);
  3781. }
  3782. static inline void bnx2x_handle_classification_eqe(struct bnx2x *bp,
  3783. union event_ring_elem *elem)
  3784. {
  3785. unsigned long ramrod_flags = 0;
  3786. int rc = 0;
  3787. u32 cid = elem->message.data.eth_event.echo & BNX2X_SWCID_MASK;
  3788. struct bnx2x_vlan_mac_obj *vlan_mac_obj;
  3789. /* Always push next commands out, don't wait here */
  3790. __set_bit(RAMROD_CONT, &ramrod_flags);
  3791. switch (elem->message.data.eth_event.echo >> BNX2X_SWCID_SHIFT) {
  3792. case BNX2X_FILTER_MAC_PENDING:
  3793. #ifdef BCM_CNIC
  3794. if (cid == BNX2X_ISCSI_ETH_CID)
  3795. vlan_mac_obj = &bp->iscsi_l2_mac_obj;
  3796. else
  3797. #endif
  3798. vlan_mac_obj = &bp->fp[cid].mac_obj;
  3799. break;
  3800. case BNX2X_FILTER_MCAST_PENDING:
  3801. /* This is only relevant for 57710 where multicast MACs are
  3802. * configured as unicast MACs using the same ramrod.
  3803. */
  3804. bnx2x_handle_mcast_eqe(bp);
  3805. return;
  3806. default:
  3807. BNX2X_ERR("Unsupported classification command: %d\n",
  3808. elem->message.data.eth_event.echo);
  3809. return;
  3810. }
  3811. rc = vlan_mac_obj->complete(bp, vlan_mac_obj, elem, &ramrod_flags);
  3812. if (rc < 0)
  3813. BNX2X_ERR("Failed to schedule new commands: %d\n", rc);
  3814. else if (rc > 0)
  3815. DP(BNX2X_MSG_SP, "Scheduled next pending commands...\n");
  3816. }
  3817. #ifdef BCM_CNIC
  3818. static void bnx2x_set_iscsi_eth_rx_mode(struct bnx2x *bp, bool start);
  3819. #endif
  3820. static inline void bnx2x_handle_rx_mode_eqe(struct bnx2x *bp)
  3821. {
  3822. netif_addr_lock_bh(bp->dev);
  3823. clear_bit(BNX2X_FILTER_RX_MODE_PENDING, &bp->sp_state);
  3824. /* Send rx_mode command again if was requested */
  3825. if (test_and_clear_bit(BNX2X_FILTER_RX_MODE_SCHED, &bp->sp_state))
  3826. bnx2x_set_storm_rx_mode(bp);
  3827. #ifdef BCM_CNIC
  3828. else if (test_and_clear_bit(BNX2X_FILTER_ISCSI_ETH_START_SCHED,
  3829. &bp->sp_state))
  3830. bnx2x_set_iscsi_eth_rx_mode(bp, true);
  3831. else if (test_and_clear_bit(BNX2X_FILTER_ISCSI_ETH_STOP_SCHED,
  3832. &bp->sp_state))
  3833. bnx2x_set_iscsi_eth_rx_mode(bp, false);
  3834. #endif
  3835. netif_addr_unlock_bh(bp->dev);
  3836. }
  3837. static inline struct bnx2x_queue_sp_obj *bnx2x_cid_to_q_obj(
  3838. struct bnx2x *bp, u32 cid)
  3839. {
  3840. DP(BNX2X_MSG_SP, "retrieving fp from cid %d\n", cid);
  3841. #ifdef BCM_CNIC
  3842. if (cid == BNX2X_FCOE_ETH_CID)
  3843. return &bnx2x_fcoe(bp, q_obj);
  3844. else
  3845. #endif
  3846. return &bnx2x_fp(bp, CID_TO_FP(cid), q_obj);
  3847. }
  3848. static void bnx2x_eq_int(struct bnx2x *bp)
  3849. {
  3850. u16 hw_cons, sw_cons, sw_prod;
  3851. union event_ring_elem *elem;
  3852. u32 cid;
  3853. u8 opcode;
  3854. int spqe_cnt = 0;
  3855. struct bnx2x_queue_sp_obj *q_obj;
  3856. struct bnx2x_func_sp_obj *f_obj = &bp->func_obj;
  3857. struct bnx2x_raw_obj *rss_raw = &bp->rss_conf_obj.raw;
  3858. hw_cons = le16_to_cpu(*bp->eq_cons_sb);
  3859. /* The hw_cos range is 1-255, 257 - the sw_cons range is 0-254, 256.
  3860. * when we get the the next-page we nned to adjust so the loop
  3861. * condition below will be met. The next element is the size of a
  3862. * regular element and hence incrementing by 1
  3863. */
  3864. if ((hw_cons & EQ_DESC_MAX_PAGE) == EQ_DESC_MAX_PAGE)
  3865. hw_cons++;
  3866. /* This function may never run in parallel with itself for a
  3867. * specific bp, thus there is no need in "paired" read memory
  3868. * barrier here.
  3869. */
  3870. sw_cons = bp->eq_cons;
  3871. sw_prod = bp->eq_prod;
  3872. DP(BNX2X_MSG_SP, "EQ: hw_cons %u sw_cons %u bp->eq_spq_left %x\n",
  3873. hw_cons, sw_cons, atomic_read(&bp->eq_spq_left));
  3874. for (; sw_cons != hw_cons;
  3875. sw_prod = NEXT_EQ_IDX(sw_prod), sw_cons = NEXT_EQ_IDX(sw_cons)) {
  3876. elem = &bp->eq_ring[EQ_DESC(sw_cons)];
  3877. cid = SW_CID(elem->message.data.cfc_del_event.cid);
  3878. opcode = elem->message.opcode;
  3879. /* handle eq element */
  3880. switch (opcode) {
  3881. case EVENT_RING_OPCODE_STAT_QUERY:
  3882. DP(NETIF_MSG_TIMER, "got statistics comp event %d\n",
  3883. bp->stats_comp++);
  3884. /* nothing to do with stats comp */
  3885. goto next_spqe;
  3886. case EVENT_RING_OPCODE_CFC_DEL:
  3887. /* handle according to cid range */
  3888. /*
  3889. * we may want to verify here that the bp state is
  3890. * HALTING
  3891. */
  3892. DP(BNX2X_MSG_SP,
  3893. "got delete ramrod for MULTI[%d]\n", cid);
  3894. #ifdef BCM_CNIC
  3895. if (!bnx2x_cnic_handle_cfc_del(bp, cid, elem))
  3896. goto next_spqe;
  3897. #endif
  3898. q_obj = bnx2x_cid_to_q_obj(bp, cid);
  3899. if (q_obj->complete_cmd(bp, q_obj, BNX2X_Q_CMD_CFC_DEL))
  3900. break;
  3901. goto next_spqe;
  3902. case EVENT_RING_OPCODE_STOP_TRAFFIC:
  3903. DP(BNX2X_MSG_SP, "got STOP TRAFFIC\n");
  3904. if (f_obj->complete_cmd(bp, f_obj,
  3905. BNX2X_F_CMD_TX_STOP))
  3906. break;
  3907. bnx2x_dcbx_set_params(bp, BNX2X_DCBX_STATE_TX_PAUSED);
  3908. goto next_spqe;
  3909. case EVENT_RING_OPCODE_START_TRAFFIC:
  3910. DP(BNX2X_MSG_SP, "got START TRAFFIC\n");
  3911. if (f_obj->complete_cmd(bp, f_obj,
  3912. BNX2X_F_CMD_TX_START))
  3913. break;
  3914. bnx2x_dcbx_set_params(bp, BNX2X_DCBX_STATE_TX_RELEASED);
  3915. goto next_spqe;
  3916. case EVENT_RING_OPCODE_FUNCTION_START:
  3917. DP(BNX2X_MSG_SP, "got FUNC_START ramrod\n");
  3918. if (f_obj->complete_cmd(bp, f_obj, BNX2X_F_CMD_START))
  3919. break;
  3920. goto next_spqe;
  3921. case EVENT_RING_OPCODE_FUNCTION_STOP:
  3922. DP(BNX2X_MSG_SP, "got FUNC_STOP ramrod\n");
  3923. if (f_obj->complete_cmd(bp, f_obj, BNX2X_F_CMD_STOP))
  3924. break;
  3925. goto next_spqe;
  3926. }
  3927. switch (opcode | bp->state) {
  3928. case (EVENT_RING_OPCODE_RSS_UPDATE_RULES |
  3929. BNX2X_STATE_OPEN):
  3930. case (EVENT_RING_OPCODE_RSS_UPDATE_RULES |
  3931. BNX2X_STATE_OPENING_WAIT4_PORT):
  3932. cid = elem->message.data.eth_event.echo &
  3933. BNX2X_SWCID_MASK;
  3934. DP(BNX2X_MSG_SP, "got RSS_UPDATE ramrod. CID %d\n",
  3935. cid);
  3936. rss_raw->clear_pending(rss_raw);
  3937. break;
  3938. case (EVENT_RING_OPCODE_SET_MAC | BNX2X_STATE_OPEN):
  3939. case (EVENT_RING_OPCODE_SET_MAC | BNX2X_STATE_DIAG):
  3940. case (EVENT_RING_OPCODE_SET_MAC |
  3941. BNX2X_STATE_CLOSING_WAIT4_HALT):
  3942. case (EVENT_RING_OPCODE_CLASSIFICATION_RULES |
  3943. BNX2X_STATE_OPEN):
  3944. case (EVENT_RING_OPCODE_CLASSIFICATION_RULES |
  3945. BNX2X_STATE_DIAG):
  3946. case (EVENT_RING_OPCODE_CLASSIFICATION_RULES |
  3947. BNX2X_STATE_CLOSING_WAIT4_HALT):
  3948. DP(BNX2X_MSG_SP, "got (un)set mac ramrod\n");
  3949. bnx2x_handle_classification_eqe(bp, elem);
  3950. break;
  3951. case (EVENT_RING_OPCODE_MULTICAST_RULES |
  3952. BNX2X_STATE_OPEN):
  3953. case (EVENT_RING_OPCODE_MULTICAST_RULES |
  3954. BNX2X_STATE_DIAG):
  3955. case (EVENT_RING_OPCODE_MULTICAST_RULES |
  3956. BNX2X_STATE_CLOSING_WAIT4_HALT):
  3957. DP(BNX2X_MSG_SP, "got mcast ramrod\n");
  3958. bnx2x_handle_mcast_eqe(bp);
  3959. break;
  3960. case (EVENT_RING_OPCODE_FILTERS_RULES |
  3961. BNX2X_STATE_OPEN):
  3962. case (EVENT_RING_OPCODE_FILTERS_RULES |
  3963. BNX2X_STATE_DIAG):
  3964. case (EVENT_RING_OPCODE_FILTERS_RULES |
  3965. BNX2X_STATE_CLOSING_WAIT4_HALT):
  3966. DP(BNX2X_MSG_SP, "got rx_mode ramrod\n");
  3967. bnx2x_handle_rx_mode_eqe(bp);
  3968. break;
  3969. default:
  3970. /* unknown event log error and continue */
  3971. BNX2X_ERR("Unknown EQ event %d, bp->state 0x%x\n",
  3972. elem->message.opcode, bp->state);
  3973. }
  3974. next_spqe:
  3975. spqe_cnt++;
  3976. } /* for */
  3977. smp_mb__before_atomic_inc();
  3978. atomic_add(spqe_cnt, &bp->eq_spq_left);
  3979. bp->eq_cons = sw_cons;
  3980. bp->eq_prod = sw_prod;
  3981. /* Make sure that above mem writes were issued towards the memory */
  3982. smp_wmb();
  3983. /* update producer */
  3984. bnx2x_update_eq_prod(bp, bp->eq_prod);
  3985. }
  3986. static void bnx2x_sp_task(struct work_struct *work)
  3987. {
  3988. struct bnx2x *bp = container_of(work, struct bnx2x, sp_task.work);
  3989. u16 status;
  3990. status = bnx2x_update_dsb_idx(bp);
  3991. /* if (status == 0) */
  3992. /* BNX2X_ERR("spurious slowpath interrupt!\n"); */
  3993. DP(NETIF_MSG_INTR, "got a slowpath interrupt (status 0x%x)\n", status);
  3994. /* HW attentions */
  3995. if (status & BNX2X_DEF_SB_ATT_IDX) {
  3996. bnx2x_attn_int(bp);
  3997. status &= ~BNX2X_DEF_SB_ATT_IDX;
  3998. }
  3999. /* SP events: STAT_QUERY and others */
  4000. if (status & BNX2X_DEF_SB_IDX) {
  4001. #ifdef BCM_CNIC
  4002. struct bnx2x_fastpath *fp = bnx2x_fcoe_fp(bp);
  4003. if ((!NO_FCOE(bp)) &&
  4004. (bnx2x_has_rx_work(fp) || bnx2x_has_tx_work(fp))) {
  4005. /*
  4006. * Prevent local bottom-halves from running as
  4007. * we are going to change the local NAPI list.
  4008. */
  4009. local_bh_disable();
  4010. napi_schedule(&bnx2x_fcoe(bp, napi));
  4011. local_bh_enable();
  4012. }
  4013. #endif
  4014. /* Handle EQ completions */
  4015. bnx2x_eq_int(bp);
  4016. bnx2x_ack_sb(bp, bp->igu_dsb_id, USTORM_ID,
  4017. le16_to_cpu(bp->def_idx), IGU_INT_NOP, 1);
  4018. status &= ~BNX2X_DEF_SB_IDX;
  4019. }
  4020. if (unlikely(status))
  4021. DP(NETIF_MSG_INTR, "got an unknown interrupt! (status 0x%x)\n",
  4022. status);
  4023. bnx2x_ack_sb(bp, bp->igu_dsb_id, ATTENTION_ID,
  4024. le16_to_cpu(bp->def_att_idx), IGU_INT_ENABLE, 1);
  4025. }
  4026. irqreturn_t bnx2x_msix_sp_int(int irq, void *dev_instance)
  4027. {
  4028. struct net_device *dev = dev_instance;
  4029. struct bnx2x *bp = netdev_priv(dev);
  4030. bnx2x_ack_sb(bp, bp->igu_dsb_id, USTORM_ID, 0,
  4031. IGU_INT_DISABLE, 0);
  4032. #ifdef BNX2X_STOP_ON_ERROR
  4033. if (unlikely(bp->panic))
  4034. return IRQ_HANDLED;
  4035. #endif
  4036. #ifdef BCM_CNIC
  4037. {
  4038. struct cnic_ops *c_ops;
  4039. rcu_read_lock();
  4040. c_ops = rcu_dereference(bp->cnic_ops);
  4041. if (c_ops)
  4042. c_ops->cnic_handler(bp->cnic_data, NULL);
  4043. rcu_read_unlock();
  4044. }
  4045. #endif
  4046. queue_delayed_work(bnx2x_wq, &bp->sp_task, 0);
  4047. return IRQ_HANDLED;
  4048. }
  4049. /* end of slow path */
  4050. void bnx2x_drv_pulse(struct bnx2x *bp)
  4051. {
  4052. SHMEM_WR(bp, func_mb[BP_FW_MB_IDX(bp)].drv_pulse_mb,
  4053. bp->fw_drv_pulse_wr_seq);
  4054. }
  4055. static void bnx2x_timer(unsigned long data)
  4056. {
  4057. u8 cos;
  4058. struct bnx2x *bp = (struct bnx2x *) data;
  4059. if (!netif_running(bp->dev))
  4060. return;
  4061. if (poll) {
  4062. struct bnx2x_fastpath *fp = &bp->fp[0];
  4063. for_each_cos_in_tx_queue(fp, cos)
  4064. bnx2x_tx_int(bp, &fp->txdata[cos]);
  4065. bnx2x_rx_int(fp, 1000);
  4066. }
  4067. if (!BP_NOMCP(bp)) {
  4068. int mb_idx = BP_FW_MB_IDX(bp);
  4069. u32 drv_pulse;
  4070. u32 mcp_pulse;
  4071. ++bp->fw_drv_pulse_wr_seq;
  4072. bp->fw_drv_pulse_wr_seq &= DRV_PULSE_SEQ_MASK;
  4073. /* TBD - add SYSTEM_TIME */
  4074. drv_pulse = bp->fw_drv_pulse_wr_seq;
  4075. bnx2x_drv_pulse(bp);
  4076. mcp_pulse = (SHMEM_RD(bp, func_mb[mb_idx].mcp_pulse_mb) &
  4077. MCP_PULSE_SEQ_MASK);
  4078. /* The delta between driver pulse and mcp response
  4079. * should be 1 (before mcp response) or 0 (after mcp response)
  4080. */
  4081. if ((drv_pulse != mcp_pulse) &&
  4082. (drv_pulse != ((mcp_pulse + 1) & MCP_PULSE_SEQ_MASK))) {
  4083. /* someone lost a heartbeat... */
  4084. BNX2X_ERR("drv_pulse (0x%x) != mcp_pulse (0x%x)\n",
  4085. drv_pulse, mcp_pulse);
  4086. }
  4087. }
  4088. if (bp->state == BNX2X_STATE_OPEN)
  4089. bnx2x_stats_handle(bp, STATS_EVENT_UPDATE);
  4090. mod_timer(&bp->timer, jiffies + bp->current_interval);
  4091. }
  4092. /* end of Statistics */
  4093. /* nic init */
  4094. /*
  4095. * nic init service functions
  4096. */
  4097. static inline void bnx2x_fill(struct bnx2x *bp, u32 addr, int fill, u32 len)
  4098. {
  4099. u32 i;
  4100. if (!(len%4) && !(addr%4))
  4101. for (i = 0; i < len; i += 4)
  4102. REG_WR(bp, addr + i, fill);
  4103. else
  4104. for (i = 0; i < len; i++)
  4105. REG_WR8(bp, addr + i, fill);
  4106. }
  4107. /* helper: writes FP SP data to FW - data_size in dwords */
  4108. static inline void bnx2x_wr_fp_sb_data(struct bnx2x *bp,
  4109. int fw_sb_id,
  4110. u32 *sb_data_p,
  4111. u32 data_size)
  4112. {
  4113. int index;
  4114. for (index = 0; index < data_size; index++)
  4115. REG_WR(bp, BAR_CSTRORM_INTMEM +
  4116. CSTORM_STATUS_BLOCK_DATA_OFFSET(fw_sb_id) +
  4117. sizeof(u32)*index,
  4118. *(sb_data_p + index));
  4119. }
  4120. static inline void bnx2x_zero_fp_sb(struct bnx2x *bp, int fw_sb_id)
  4121. {
  4122. u32 *sb_data_p;
  4123. u32 data_size = 0;
  4124. struct hc_status_block_data_e2 sb_data_e2;
  4125. struct hc_status_block_data_e1x sb_data_e1x;
  4126. /* disable the function first */
  4127. if (!CHIP_IS_E1x(bp)) {
  4128. memset(&sb_data_e2, 0, sizeof(struct hc_status_block_data_e2));
  4129. sb_data_e2.common.state = SB_DISABLED;
  4130. sb_data_e2.common.p_func.vf_valid = false;
  4131. sb_data_p = (u32 *)&sb_data_e2;
  4132. data_size = sizeof(struct hc_status_block_data_e2)/sizeof(u32);
  4133. } else {
  4134. memset(&sb_data_e1x, 0,
  4135. sizeof(struct hc_status_block_data_e1x));
  4136. sb_data_e1x.common.state = SB_DISABLED;
  4137. sb_data_e1x.common.p_func.vf_valid = false;
  4138. sb_data_p = (u32 *)&sb_data_e1x;
  4139. data_size = sizeof(struct hc_status_block_data_e1x)/sizeof(u32);
  4140. }
  4141. bnx2x_wr_fp_sb_data(bp, fw_sb_id, sb_data_p, data_size);
  4142. bnx2x_fill(bp, BAR_CSTRORM_INTMEM +
  4143. CSTORM_STATUS_BLOCK_OFFSET(fw_sb_id), 0,
  4144. CSTORM_STATUS_BLOCK_SIZE);
  4145. bnx2x_fill(bp, BAR_CSTRORM_INTMEM +
  4146. CSTORM_SYNC_BLOCK_OFFSET(fw_sb_id), 0,
  4147. CSTORM_SYNC_BLOCK_SIZE);
  4148. }
  4149. /* helper: writes SP SB data to FW */
  4150. static inline void bnx2x_wr_sp_sb_data(struct bnx2x *bp,
  4151. struct hc_sp_status_block_data *sp_sb_data)
  4152. {
  4153. int func = BP_FUNC(bp);
  4154. int i;
  4155. for (i = 0; i < sizeof(struct hc_sp_status_block_data)/sizeof(u32); i++)
  4156. REG_WR(bp, BAR_CSTRORM_INTMEM +
  4157. CSTORM_SP_STATUS_BLOCK_DATA_OFFSET(func) +
  4158. i*sizeof(u32),
  4159. *((u32 *)sp_sb_data + i));
  4160. }
  4161. static inline void bnx2x_zero_sp_sb(struct bnx2x *bp)
  4162. {
  4163. int func = BP_FUNC(bp);
  4164. struct hc_sp_status_block_data sp_sb_data;
  4165. memset(&sp_sb_data, 0, sizeof(struct hc_sp_status_block_data));
  4166. sp_sb_data.state = SB_DISABLED;
  4167. sp_sb_data.p_func.vf_valid = false;
  4168. bnx2x_wr_sp_sb_data(bp, &sp_sb_data);
  4169. bnx2x_fill(bp, BAR_CSTRORM_INTMEM +
  4170. CSTORM_SP_STATUS_BLOCK_OFFSET(func), 0,
  4171. CSTORM_SP_STATUS_BLOCK_SIZE);
  4172. bnx2x_fill(bp, BAR_CSTRORM_INTMEM +
  4173. CSTORM_SP_SYNC_BLOCK_OFFSET(func), 0,
  4174. CSTORM_SP_SYNC_BLOCK_SIZE);
  4175. }
  4176. static inline
  4177. void bnx2x_setup_ndsb_state_machine(struct hc_status_block_sm *hc_sm,
  4178. int igu_sb_id, int igu_seg_id)
  4179. {
  4180. hc_sm->igu_sb_id = igu_sb_id;
  4181. hc_sm->igu_seg_id = igu_seg_id;
  4182. hc_sm->timer_value = 0xFF;
  4183. hc_sm->time_to_expire = 0xFFFFFFFF;
  4184. }
  4185. /* allocates state machine ids. */
  4186. static inline
  4187. void bnx2x_map_sb_state_machines(struct hc_index_data *index_data)
  4188. {
  4189. /* zero out state machine indices */
  4190. /* rx indices */
  4191. index_data[HC_INDEX_ETH_RX_CQ_CONS].flags &= ~HC_INDEX_DATA_SM_ID;
  4192. /* tx indices */
  4193. index_data[HC_INDEX_OOO_TX_CQ_CONS].flags &= ~HC_INDEX_DATA_SM_ID;
  4194. index_data[HC_INDEX_ETH_TX_CQ_CONS_COS0].flags &= ~HC_INDEX_DATA_SM_ID;
  4195. index_data[HC_INDEX_ETH_TX_CQ_CONS_COS1].flags &= ~HC_INDEX_DATA_SM_ID;
  4196. index_data[HC_INDEX_ETH_TX_CQ_CONS_COS2].flags &= ~HC_INDEX_DATA_SM_ID;
  4197. /* map indices */
  4198. /* rx indices */
  4199. index_data[HC_INDEX_ETH_RX_CQ_CONS].flags |=
  4200. SM_RX_ID << HC_INDEX_DATA_SM_ID_SHIFT;
  4201. /* tx indices */
  4202. index_data[HC_INDEX_OOO_TX_CQ_CONS].flags |=
  4203. SM_TX_ID << HC_INDEX_DATA_SM_ID_SHIFT;
  4204. index_data[HC_INDEX_ETH_TX_CQ_CONS_COS0].flags |=
  4205. SM_TX_ID << HC_INDEX_DATA_SM_ID_SHIFT;
  4206. index_data[HC_INDEX_ETH_TX_CQ_CONS_COS1].flags |=
  4207. SM_TX_ID << HC_INDEX_DATA_SM_ID_SHIFT;
  4208. index_data[HC_INDEX_ETH_TX_CQ_CONS_COS2].flags |=
  4209. SM_TX_ID << HC_INDEX_DATA_SM_ID_SHIFT;
  4210. }
  4211. static void bnx2x_init_sb(struct bnx2x *bp, dma_addr_t mapping, int vfid,
  4212. u8 vf_valid, int fw_sb_id, int igu_sb_id)
  4213. {
  4214. int igu_seg_id;
  4215. struct hc_status_block_data_e2 sb_data_e2;
  4216. struct hc_status_block_data_e1x sb_data_e1x;
  4217. struct hc_status_block_sm *hc_sm_p;
  4218. int data_size;
  4219. u32 *sb_data_p;
  4220. if (CHIP_INT_MODE_IS_BC(bp))
  4221. igu_seg_id = HC_SEG_ACCESS_NORM;
  4222. else
  4223. igu_seg_id = IGU_SEG_ACCESS_NORM;
  4224. bnx2x_zero_fp_sb(bp, fw_sb_id);
  4225. if (!CHIP_IS_E1x(bp)) {
  4226. memset(&sb_data_e2, 0, sizeof(struct hc_status_block_data_e2));
  4227. sb_data_e2.common.state = SB_ENABLED;
  4228. sb_data_e2.common.p_func.pf_id = BP_FUNC(bp);
  4229. sb_data_e2.common.p_func.vf_id = vfid;
  4230. sb_data_e2.common.p_func.vf_valid = vf_valid;
  4231. sb_data_e2.common.p_func.vnic_id = BP_VN(bp);
  4232. sb_data_e2.common.same_igu_sb_1b = true;
  4233. sb_data_e2.common.host_sb_addr.hi = U64_HI(mapping);
  4234. sb_data_e2.common.host_sb_addr.lo = U64_LO(mapping);
  4235. hc_sm_p = sb_data_e2.common.state_machine;
  4236. sb_data_p = (u32 *)&sb_data_e2;
  4237. data_size = sizeof(struct hc_status_block_data_e2)/sizeof(u32);
  4238. bnx2x_map_sb_state_machines(sb_data_e2.index_data);
  4239. } else {
  4240. memset(&sb_data_e1x, 0,
  4241. sizeof(struct hc_status_block_data_e1x));
  4242. sb_data_e1x.common.state = SB_ENABLED;
  4243. sb_data_e1x.common.p_func.pf_id = BP_FUNC(bp);
  4244. sb_data_e1x.common.p_func.vf_id = 0xff;
  4245. sb_data_e1x.common.p_func.vf_valid = false;
  4246. sb_data_e1x.common.p_func.vnic_id = BP_VN(bp);
  4247. sb_data_e1x.common.same_igu_sb_1b = true;
  4248. sb_data_e1x.common.host_sb_addr.hi = U64_HI(mapping);
  4249. sb_data_e1x.common.host_sb_addr.lo = U64_LO(mapping);
  4250. hc_sm_p = sb_data_e1x.common.state_machine;
  4251. sb_data_p = (u32 *)&sb_data_e1x;
  4252. data_size = sizeof(struct hc_status_block_data_e1x)/sizeof(u32);
  4253. bnx2x_map_sb_state_machines(sb_data_e1x.index_data);
  4254. }
  4255. bnx2x_setup_ndsb_state_machine(&hc_sm_p[SM_RX_ID],
  4256. igu_sb_id, igu_seg_id);
  4257. bnx2x_setup_ndsb_state_machine(&hc_sm_p[SM_TX_ID],
  4258. igu_sb_id, igu_seg_id);
  4259. DP(NETIF_MSG_HW, "Init FW SB %d\n", fw_sb_id);
  4260. /* write indecies to HW */
  4261. bnx2x_wr_fp_sb_data(bp, fw_sb_id, sb_data_p, data_size);
  4262. }
  4263. static void bnx2x_update_coalesce_sb(struct bnx2x *bp, u8 fw_sb_id,
  4264. u16 tx_usec, u16 rx_usec)
  4265. {
  4266. bnx2x_update_coalesce_sb_index(bp, fw_sb_id, HC_INDEX_ETH_RX_CQ_CONS,
  4267. false, rx_usec);
  4268. bnx2x_update_coalesce_sb_index(bp, fw_sb_id,
  4269. HC_INDEX_ETH_TX_CQ_CONS_COS0, false,
  4270. tx_usec);
  4271. bnx2x_update_coalesce_sb_index(bp, fw_sb_id,
  4272. HC_INDEX_ETH_TX_CQ_CONS_COS1, false,
  4273. tx_usec);
  4274. bnx2x_update_coalesce_sb_index(bp, fw_sb_id,
  4275. HC_INDEX_ETH_TX_CQ_CONS_COS2, false,
  4276. tx_usec);
  4277. }
  4278. static void bnx2x_init_def_sb(struct bnx2x *bp)
  4279. {
  4280. struct host_sp_status_block *def_sb = bp->def_status_blk;
  4281. dma_addr_t mapping = bp->def_status_blk_mapping;
  4282. int igu_sp_sb_index;
  4283. int igu_seg_id;
  4284. int port = BP_PORT(bp);
  4285. int func = BP_FUNC(bp);
  4286. int reg_offset, reg_offset_en5;
  4287. u64 section;
  4288. int index;
  4289. struct hc_sp_status_block_data sp_sb_data;
  4290. memset(&sp_sb_data, 0, sizeof(struct hc_sp_status_block_data));
  4291. if (CHIP_INT_MODE_IS_BC(bp)) {
  4292. igu_sp_sb_index = DEF_SB_IGU_ID;
  4293. igu_seg_id = HC_SEG_ACCESS_DEF;
  4294. } else {
  4295. igu_sp_sb_index = bp->igu_dsb_id;
  4296. igu_seg_id = IGU_SEG_ACCESS_DEF;
  4297. }
  4298. /* ATTN */
  4299. section = ((u64)mapping) + offsetof(struct host_sp_status_block,
  4300. atten_status_block);
  4301. def_sb->atten_status_block.status_block_id = igu_sp_sb_index;
  4302. bp->attn_state = 0;
  4303. reg_offset = (port ? MISC_REG_AEU_ENABLE1_FUNC_1_OUT_0 :
  4304. MISC_REG_AEU_ENABLE1_FUNC_0_OUT_0);
  4305. reg_offset_en5 = (port ? MISC_REG_AEU_ENABLE5_FUNC_1_OUT_0 :
  4306. MISC_REG_AEU_ENABLE5_FUNC_0_OUT_0);
  4307. for (index = 0; index < MAX_DYNAMIC_ATTN_GRPS; index++) {
  4308. int sindex;
  4309. /* take care of sig[0]..sig[4] */
  4310. for (sindex = 0; sindex < 4; sindex++)
  4311. bp->attn_group[index].sig[sindex] =
  4312. REG_RD(bp, reg_offset + sindex*0x4 + 0x10*index);
  4313. if (!CHIP_IS_E1x(bp))
  4314. /*
  4315. * enable5 is separate from the rest of the registers,
  4316. * and therefore the address skip is 4
  4317. * and not 16 between the different groups
  4318. */
  4319. bp->attn_group[index].sig[4] = REG_RD(bp,
  4320. reg_offset_en5 + 0x4*index);
  4321. else
  4322. bp->attn_group[index].sig[4] = 0;
  4323. }
  4324. if (bp->common.int_block == INT_BLOCK_HC) {
  4325. reg_offset = (port ? HC_REG_ATTN_MSG1_ADDR_L :
  4326. HC_REG_ATTN_MSG0_ADDR_L);
  4327. REG_WR(bp, reg_offset, U64_LO(section));
  4328. REG_WR(bp, reg_offset + 4, U64_HI(section));
  4329. } else if (!CHIP_IS_E1x(bp)) {
  4330. REG_WR(bp, IGU_REG_ATTN_MSG_ADDR_L, U64_LO(section));
  4331. REG_WR(bp, IGU_REG_ATTN_MSG_ADDR_H, U64_HI(section));
  4332. }
  4333. section = ((u64)mapping) + offsetof(struct host_sp_status_block,
  4334. sp_sb);
  4335. bnx2x_zero_sp_sb(bp);
  4336. sp_sb_data.state = SB_ENABLED;
  4337. sp_sb_data.host_sb_addr.lo = U64_LO(section);
  4338. sp_sb_data.host_sb_addr.hi = U64_HI(section);
  4339. sp_sb_data.igu_sb_id = igu_sp_sb_index;
  4340. sp_sb_data.igu_seg_id = igu_seg_id;
  4341. sp_sb_data.p_func.pf_id = func;
  4342. sp_sb_data.p_func.vnic_id = BP_VN(bp);
  4343. sp_sb_data.p_func.vf_id = 0xff;
  4344. bnx2x_wr_sp_sb_data(bp, &sp_sb_data);
  4345. bnx2x_ack_sb(bp, bp->igu_dsb_id, USTORM_ID, 0, IGU_INT_ENABLE, 0);
  4346. }
  4347. void bnx2x_update_coalesce(struct bnx2x *bp)
  4348. {
  4349. int i;
  4350. for_each_eth_queue(bp, i)
  4351. bnx2x_update_coalesce_sb(bp, bp->fp[i].fw_sb_id,
  4352. bp->tx_ticks, bp->rx_ticks);
  4353. }
  4354. static void bnx2x_init_sp_ring(struct bnx2x *bp)
  4355. {
  4356. spin_lock_init(&bp->spq_lock);
  4357. atomic_set(&bp->cq_spq_left, MAX_SPQ_PENDING);
  4358. bp->spq_prod_idx = 0;
  4359. bp->dsb_sp_prod = BNX2X_SP_DSB_INDEX;
  4360. bp->spq_prod_bd = bp->spq;
  4361. bp->spq_last_bd = bp->spq_prod_bd + MAX_SP_DESC_CNT;
  4362. }
  4363. static void bnx2x_init_eq_ring(struct bnx2x *bp)
  4364. {
  4365. int i;
  4366. for (i = 1; i <= NUM_EQ_PAGES; i++) {
  4367. union event_ring_elem *elem =
  4368. &bp->eq_ring[EQ_DESC_CNT_PAGE * i - 1];
  4369. elem->next_page.addr.hi =
  4370. cpu_to_le32(U64_HI(bp->eq_mapping +
  4371. BCM_PAGE_SIZE * (i % NUM_EQ_PAGES)));
  4372. elem->next_page.addr.lo =
  4373. cpu_to_le32(U64_LO(bp->eq_mapping +
  4374. BCM_PAGE_SIZE*(i % NUM_EQ_PAGES)));
  4375. }
  4376. bp->eq_cons = 0;
  4377. bp->eq_prod = NUM_EQ_DESC;
  4378. bp->eq_cons_sb = BNX2X_EQ_INDEX;
  4379. /* we want a warning message before it gets rought... */
  4380. atomic_set(&bp->eq_spq_left,
  4381. min_t(int, MAX_SP_DESC_CNT - MAX_SPQ_PENDING, NUM_EQ_DESC) - 1);
  4382. }
  4383. /* called with netif_addr_lock_bh() */
  4384. void bnx2x_set_q_rx_mode(struct bnx2x *bp, u8 cl_id,
  4385. unsigned long rx_mode_flags,
  4386. unsigned long rx_accept_flags,
  4387. unsigned long tx_accept_flags,
  4388. unsigned long ramrod_flags)
  4389. {
  4390. struct bnx2x_rx_mode_ramrod_params ramrod_param;
  4391. int rc;
  4392. memset(&ramrod_param, 0, sizeof(ramrod_param));
  4393. /* Prepare ramrod parameters */
  4394. ramrod_param.cid = 0;
  4395. ramrod_param.cl_id = cl_id;
  4396. ramrod_param.rx_mode_obj = &bp->rx_mode_obj;
  4397. ramrod_param.func_id = BP_FUNC(bp);
  4398. ramrod_param.pstate = &bp->sp_state;
  4399. ramrod_param.state = BNX2X_FILTER_RX_MODE_PENDING;
  4400. ramrod_param.rdata = bnx2x_sp(bp, rx_mode_rdata);
  4401. ramrod_param.rdata_mapping = bnx2x_sp_mapping(bp, rx_mode_rdata);
  4402. set_bit(BNX2X_FILTER_RX_MODE_PENDING, &bp->sp_state);
  4403. ramrod_param.ramrod_flags = ramrod_flags;
  4404. ramrod_param.rx_mode_flags = rx_mode_flags;
  4405. ramrod_param.rx_accept_flags = rx_accept_flags;
  4406. ramrod_param.tx_accept_flags = tx_accept_flags;
  4407. rc = bnx2x_config_rx_mode(bp, &ramrod_param);
  4408. if (rc < 0) {
  4409. BNX2X_ERR("Set rx_mode %d failed\n", bp->rx_mode);
  4410. return;
  4411. }
  4412. }
  4413. /* called with netif_addr_lock_bh() */
  4414. void bnx2x_set_storm_rx_mode(struct bnx2x *bp)
  4415. {
  4416. unsigned long rx_mode_flags = 0, ramrod_flags = 0;
  4417. unsigned long rx_accept_flags = 0, tx_accept_flags = 0;
  4418. #ifdef BCM_CNIC
  4419. if (!NO_FCOE(bp))
  4420. /* Configure rx_mode of FCoE Queue */
  4421. __set_bit(BNX2X_RX_MODE_FCOE_ETH, &rx_mode_flags);
  4422. #endif
  4423. switch (bp->rx_mode) {
  4424. case BNX2X_RX_MODE_NONE:
  4425. /*
  4426. * 'drop all' supersedes any accept flags that may have been
  4427. * passed to the function.
  4428. */
  4429. break;
  4430. case BNX2X_RX_MODE_NORMAL:
  4431. __set_bit(BNX2X_ACCEPT_UNICAST, &rx_accept_flags);
  4432. __set_bit(BNX2X_ACCEPT_MULTICAST, &rx_accept_flags);
  4433. __set_bit(BNX2X_ACCEPT_BROADCAST, &rx_accept_flags);
  4434. /* internal switching mode */
  4435. __set_bit(BNX2X_ACCEPT_UNICAST, &tx_accept_flags);
  4436. __set_bit(BNX2X_ACCEPT_MULTICAST, &tx_accept_flags);
  4437. __set_bit(BNX2X_ACCEPT_BROADCAST, &tx_accept_flags);
  4438. break;
  4439. case BNX2X_RX_MODE_ALLMULTI:
  4440. __set_bit(BNX2X_ACCEPT_UNICAST, &rx_accept_flags);
  4441. __set_bit(BNX2X_ACCEPT_ALL_MULTICAST, &rx_accept_flags);
  4442. __set_bit(BNX2X_ACCEPT_BROADCAST, &rx_accept_flags);
  4443. /* internal switching mode */
  4444. __set_bit(BNX2X_ACCEPT_UNICAST, &tx_accept_flags);
  4445. __set_bit(BNX2X_ACCEPT_ALL_MULTICAST, &tx_accept_flags);
  4446. __set_bit(BNX2X_ACCEPT_BROADCAST, &tx_accept_flags);
  4447. break;
  4448. case BNX2X_RX_MODE_PROMISC:
  4449. /* According to deffinition of SI mode, iface in promisc mode
  4450. * should receive matched and unmatched (in resolution of port)
  4451. * unicast packets.
  4452. */
  4453. __set_bit(BNX2X_ACCEPT_UNMATCHED, &rx_accept_flags);
  4454. __set_bit(BNX2X_ACCEPT_UNICAST, &rx_accept_flags);
  4455. __set_bit(BNX2X_ACCEPT_ALL_MULTICAST, &rx_accept_flags);
  4456. __set_bit(BNX2X_ACCEPT_BROADCAST, &rx_accept_flags);
  4457. /* internal switching mode */
  4458. __set_bit(BNX2X_ACCEPT_ALL_MULTICAST, &tx_accept_flags);
  4459. __set_bit(BNX2X_ACCEPT_BROADCAST, &tx_accept_flags);
  4460. if (IS_MF_SI(bp))
  4461. __set_bit(BNX2X_ACCEPT_ALL_UNICAST, &tx_accept_flags);
  4462. else
  4463. __set_bit(BNX2X_ACCEPT_UNICAST, &tx_accept_flags);
  4464. break;
  4465. default:
  4466. BNX2X_ERR("Unknown rx_mode: %d\n", bp->rx_mode);
  4467. return;
  4468. }
  4469. if (bp->rx_mode != BNX2X_RX_MODE_NONE) {
  4470. __set_bit(BNX2X_ACCEPT_ANY_VLAN, &rx_accept_flags);
  4471. __set_bit(BNX2X_ACCEPT_ANY_VLAN, &tx_accept_flags);
  4472. }
  4473. __set_bit(RAMROD_RX, &ramrod_flags);
  4474. __set_bit(RAMROD_TX, &ramrod_flags);
  4475. bnx2x_set_q_rx_mode(bp, bp->fp->cl_id, rx_mode_flags, rx_accept_flags,
  4476. tx_accept_flags, ramrod_flags);
  4477. }
  4478. static void bnx2x_init_internal_common(struct bnx2x *bp)
  4479. {
  4480. int i;
  4481. if (IS_MF_SI(bp))
  4482. /*
  4483. * In switch independent mode, the TSTORM needs to accept
  4484. * packets that failed classification, since approximate match
  4485. * mac addresses aren't written to NIG LLH
  4486. */
  4487. REG_WR8(bp, BAR_TSTRORM_INTMEM +
  4488. TSTORM_ACCEPT_CLASSIFY_FAILED_OFFSET, 2);
  4489. else if (!CHIP_IS_E1(bp)) /* 57710 doesn't support MF */
  4490. REG_WR8(bp, BAR_TSTRORM_INTMEM +
  4491. TSTORM_ACCEPT_CLASSIFY_FAILED_OFFSET, 0);
  4492. /* Zero this manually as its initialization is
  4493. currently missing in the initTool */
  4494. for (i = 0; i < (USTORM_AGG_DATA_SIZE >> 2); i++)
  4495. REG_WR(bp, BAR_USTRORM_INTMEM +
  4496. USTORM_AGG_DATA_OFFSET + i * 4, 0);
  4497. if (!CHIP_IS_E1x(bp)) {
  4498. REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_IGU_MODE_OFFSET,
  4499. CHIP_INT_MODE_IS_BC(bp) ?
  4500. HC_IGU_BC_MODE : HC_IGU_NBC_MODE);
  4501. }
  4502. }
  4503. static void bnx2x_init_internal(struct bnx2x *bp, u32 load_code)
  4504. {
  4505. switch (load_code) {
  4506. case FW_MSG_CODE_DRV_LOAD_COMMON:
  4507. case FW_MSG_CODE_DRV_LOAD_COMMON_CHIP:
  4508. bnx2x_init_internal_common(bp);
  4509. /* no break */
  4510. case FW_MSG_CODE_DRV_LOAD_PORT:
  4511. /* nothing to do */
  4512. /* no break */
  4513. case FW_MSG_CODE_DRV_LOAD_FUNCTION:
  4514. /* internal memory per function is
  4515. initialized inside bnx2x_pf_init */
  4516. break;
  4517. default:
  4518. BNX2X_ERR("Unknown load_code (0x%x) from MCP\n", load_code);
  4519. break;
  4520. }
  4521. }
  4522. static inline u8 bnx2x_fp_igu_sb_id(struct bnx2x_fastpath *fp)
  4523. {
  4524. return fp->bp->igu_base_sb + fp->index + CNIC_PRESENT;
  4525. }
  4526. static inline u8 bnx2x_fp_fw_sb_id(struct bnx2x_fastpath *fp)
  4527. {
  4528. return fp->bp->base_fw_ndsb + fp->index + CNIC_PRESENT;
  4529. }
  4530. static inline u8 bnx2x_fp_cl_id(struct bnx2x_fastpath *fp)
  4531. {
  4532. if (CHIP_IS_E1x(fp->bp))
  4533. return BP_L_ID(fp->bp) + fp->index;
  4534. else /* We want Client ID to be the same as IGU SB ID for 57712 */
  4535. return bnx2x_fp_igu_sb_id(fp);
  4536. }
  4537. static void bnx2x_init_eth_fp(struct bnx2x *bp, int fp_idx)
  4538. {
  4539. struct bnx2x_fastpath *fp = &bp->fp[fp_idx];
  4540. u8 cos;
  4541. unsigned long q_type = 0;
  4542. u32 cids[BNX2X_MULTI_TX_COS] = { 0 };
  4543. fp->rx_queue = fp_idx;
  4544. fp->cid = fp_idx;
  4545. fp->cl_id = bnx2x_fp_cl_id(fp);
  4546. fp->fw_sb_id = bnx2x_fp_fw_sb_id(fp);
  4547. fp->igu_sb_id = bnx2x_fp_igu_sb_id(fp);
  4548. /* qZone id equals to FW (per path) client id */
  4549. fp->cl_qzone_id = bnx2x_fp_qzone_id(fp);
  4550. /* init shortcut */
  4551. fp->ustorm_rx_prods_offset = bnx2x_rx_ustorm_prods_offset(fp);
  4552. /* Setup SB indicies */
  4553. fp->rx_cons_sb = BNX2X_RX_SB_INDEX;
  4554. /* Configure Queue State object */
  4555. __set_bit(BNX2X_Q_TYPE_HAS_RX, &q_type);
  4556. __set_bit(BNX2X_Q_TYPE_HAS_TX, &q_type);
  4557. BUG_ON(fp->max_cos > BNX2X_MULTI_TX_COS);
  4558. /* init tx data */
  4559. for_each_cos_in_tx_queue(fp, cos) {
  4560. bnx2x_init_txdata(bp, &fp->txdata[cos],
  4561. CID_COS_TO_TX_ONLY_CID(fp->cid, cos),
  4562. FP_COS_TO_TXQ(fp, cos),
  4563. BNX2X_TX_SB_INDEX_BASE + cos);
  4564. cids[cos] = fp->txdata[cos].cid;
  4565. }
  4566. bnx2x_init_queue_obj(bp, &fp->q_obj, fp->cl_id, cids, fp->max_cos,
  4567. BP_FUNC(bp), bnx2x_sp(bp, q_rdata),
  4568. bnx2x_sp_mapping(bp, q_rdata), q_type);
  4569. /**
  4570. * Configure classification DBs: Always enable Tx switching
  4571. */
  4572. bnx2x_init_vlan_mac_fp_objs(fp, BNX2X_OBJ_TYPE_RX_TX);
  4573. DP(NETIF_MSG_IFUP, "queue[%d]: bnx2x_init_sb(%p,%p) "
  4574. "cl_id %d fw_sb %d igu_sb %d\n",
  4575. fp_idx, bp, fp->status_blk.e2_sb, fp->cl_id, fp->fw_sb_id,
  4576. fp->igu_sb_id);
  4577. bnx2x_init_sb(bp, fp->status_blk_mapping, BNX2X_VF_ID_INVALID, false,
  4578. fp->fw_sb_id, fp->igu_sb_id);
  4579. bnx2x_update_fpsb_idx(fp);
  4580. }
  4581. void bnx2x_nic_init(struct bnx2x *bp, u32 load_code)
  4582. {
  4583. int i;
  4584. for_each_eth_queue(bp, i)
  4585. bnx2x_init_eth_fp(bp, i);
  4586. #ifdef BCM_CNIC
  4587. if (!NO_FCOE(bp))
  4588. bnx2x_init_fcoe_fp(bp);
  4589. bnx2x_init_sb(bp, bp->cnic_sb_mapping,
  4590. BNX2X_VF_ID_INVALID, false,
  4591. bnx2x_cnic_fw_sb_id(bp), bnx2x_cnic_igu_sb_id(bp));
  4592. #endif
  4593. /* Initialize MOD_ABS interrupts */
  4594. bnx2x_init_mod_abs_int(bp, &bp->link_vars, bp->common.chip_id,
  4595. bp->common.shmem_base, bp->common.shmem2_base,
  4596. BP_PORT(bp));
  4597. /* ensure status block indices were read */
  4598. rmb();
  4599. bnx2x_init_def_sb(bp);
  4600. bnx2x_update_dsb_idx(bp);
  4601. bnx2x_init_rx_rings(bp);
  4602. bnx2x_init_tx_rings(bp);
  4603. bnx2x_init_sp_ring(bp);
  4604. bnx2x_init_eq_ring(bp);
  4605. bnx2x_init_internal(bp, load_code);
  4606. bnx2x_pf_init(bp);
  4607. bnx2x_stats_init(bp);
  4608. /* flush all before enabling interrupts */
  4609. mb();
  4610. mmiowb();
  4611. bnx2x_int_enable(bp);
  4612. /* Check for SPIO5 */
  4613. bnx2x_attn_int_deasserted0(bp,
  4614. REG_RD(bp, MISC_REG_AEU_AFTER_INVERT_1_FUNC_0 + BP_PORT(bp)*4) &
  4615. AEU_INPUTS_ATTN_BITS_SPIO5);
  4616. }
  4617. /* end of nic init */
  4618. /*
  4619. * gzip service functions
  4620. */
  4621. static int bnx2x_gunzip_init(struct bnx2x *bp)
  4622. {
  4623. bp->gunzip_buf = dma_alloc_coherent(&bp->pdev->dev, FW_BUF_SIZE,
  4624. &bp->gunzip_mapping, GFP_KERNEL);
  4625. if (bp->gunzip_buf == NULL)
  4626. goto gunzip_nomem1;
  4627. bp->strm = kmalloc(sizeof(*bp->strm), GFP_KERNEL);
  4628. if (bp->strm == NULL)
  4629. goto gunzip_nomem2;
  4630. bp->strm->workspace = vmalloc(zlib_inflate_workspacesize());
  4631. if (bp->strm->workspace == NULL)
  4632. goto gunzip_nomem3;
  4633. return 0;
  4634. gunzip_nomem3:
  4635. kfree(bp->strm);
  4636. bp->strm = NULL;
  4637. gunzip_nomem2:
  4638. dma_free_coherent(&bp->pdev->dev, FW_BUF_SIZE, bp->gunzip_buf,
  4639. bp->gunzip_mapping);
  4640. bp->gunzip_buf = NULL;
  4641. gunzip_nomem1:
  4642. netdev_err(bp->dev, "Cannot allocate firmware buffer for"
  4643. " un-compression\n");
  4644. return -ENOMEM;
  4645. }
  4646. static void bnx2x_gunzip_end(struct bnx2x *bp)
  4647. {
  4648. if (bp->strm) {
  4649. vfree(bp->strm->workspace);
  4650. kfree(bp->strm);
  4651. bp->strm = NULL;
  4652. }
  4653. if (bp->gunzip_buf) {
  4654. dma_free_coherent(&bp->pdev->dev, FW_BUF_SIZE, bp->gunzip_buf,
  4655. bp->gunzip_mapping);
  4656. bp->gunzip_buf = NULL;
  4657. }
  4658. }
  4659. static int bnx2x_gunzip(struct bnx2x *bp, const u8 *zbuf, int len)
  4660. {
  4661. int n, rc;
  4662. /* check gzip header */
  4663. if ((zbuf[0] != 0x1f) || (zbuf[1] != 0x8b) || (zbuf[2] != Z_DEFLATED)) {
  4664. BNX2X_ERR("Bad gzip header\n");
  4665. return -EINVAL;
  4666. }
  4667. n = 10;
  4668. #define FNAME 0x8
  4669. if (zbuf[3] & FNAME)
  4670. while ((zbuf[n++] != 0) && (n < len));
  4671. bp->strm->next_in = (typeof(bp->strm->next_in))zbuf + n;
  4672. bp->strm->avail_in = len - n;
  4673. bp->strm->next_out = bp->gunzip_buf;
  4674. bp->strm->avail_out = FW_BUF_SIZE;
  4675. rc = zlib_inflateInit2(bp->strm, -MAX_WBITS);
  4676. if (rc != Z_OK)
  4677. return rc;
  4678. rc = zlib_inflate(bp->strm, Z_FINISH);
  4679. if ((rc != Z_OK) && (rc != Z_STREAM_END))
  4680. netdev_err(bp->dev, "Firmware decompression error: %s\n",
  4681. bp->strm->msg);
  4682. bp->gunzip_outlen = (FW_BUF_SIZE - bp->strm->avail_out);
  4683. if (bp->gunzip_outlen & 0x3)
  4684. netdev_err(bp->dev, "Firmware decompression error:"
  4685. " gunzip_outlen (%d) not aligned\n",
  4686. bp->gunzip_outlen);
  4687. bp->gunzip_outlen >>= 2;
  4688. zlib_inflateEnd(bp->strm);
  4689. if (rc == Z_STREAM_END)
  4690. return 0;
  4691. return rc;
  4692. }
  4693. /* nic load/unload */
  4694. /*
  4695. * General service functions
  4696. */
  4697. /* send a NIG loopback debug packet */
  4698. static void bnx2x_lb_pckt(struct bnx2x *bp)
  4699. {
  4700. u32 wb_write[3];
  4701. /* Ethernet source and destination addresses */
  4702. wb_write[0] = 0x55555555;
  4703. wb_write[1] = 0x55555555;
  4704. wb_write[2] = 0x20; /* SOP */
  4705. REG_WR_DMAE(bp, NIG_REG_DEBUG_PACKET_LB, wb_write, 3);
  4706. /* NON-IP protocol */
  4707. wb_write[0] = 0x09000000;
  4708. wb_write[1] = 0x55555555;
  4709. wb_write[2] = 0x10; /* EOP, eop_bvalid = 0 */
  4710. REG_WR_DMAE(bp, NIG_REG_DEBUG_PACKET_LB, wb_write, 3);
  4711. }
  4712. /* some of the internal memories
  4713. * are not directly readable from the driver
  4714. * to test them we send debug packets
  4715. */
  4716. static int bnx2x_int_mem_test(struct bnx2x *bp)
  4717. {
  4718. int factor;
  4719. int count, i;
  4720. u32 val = 0;
  4721. if (CHIP_REV_IS_FPGA(bp))
  4722. factor = 120;
  4723. else if (CHIP_REV_IS_EMUL(bp))
  4724. factor = 200;
  4725. else
  4726. factor = 1;
  4727. /* Disable inputs of parser neighbor blocks */
  4728. REG_WR(bp, TSDM_REG_ENABLE_IN1, 0x0);
  4729. REG_WR(bp, TCM_REG_PRS_IFEN, 0x0);
  4730. REG_WR(bp, CFC_REG_DEBUG0, 0x1);
  4731. REG_WR(bp, NIG_REG_PRS_REQ_IN_EN, 0x0);
  4732. /* Write 0 to parser credits for CFC search request */
  4733. REG_WR(bp, PRS_REG_CFC_SEARCH_INITIAL_CREDIT, 0x0);
  4734. /* send Ethernet packet */
  4735. bnx2x_lb_pckt(bp);
  4736. /* TODO do i reset NIG statistic? */
  4737. /* Wait until NIG register shows 1 packet of size 0x10 */
  4738. count = 1000 * factor;
  4739. while (count) {
  4740. bnx2x_read_dmae(bp, NIG_REG_STAT2_BRB_OCTET, 2);
  4741. val = *bnx2x_sp(bp, wb_data[0]);
  4742. if (val == 0x10)
  4743. break;
  4744. msleep(10);
  4745. count--;
  4746. }
  4747. if (val != 0x10) {
  4748. BNX2X_ERR("NIG timeout val = 0x%x\n", val);
  4749. return -1;
  4750. }
  4751. /* Wait until PRS register shows 1 packet */
  4752. count = 1000 * factor;
  4753. while (count) {
  4754. val = REG_RD(bp, PRS_REG_NUM_OF_PACKETS);
  4755. if (val == 1)
  4756. break;
  4757. msleep(10);
  4758. count--;
  4759. }
  4760. if (val != 0x1) {
  4761. BNX2X_ERR("PRS timeout val = 0x%x\n", val);
  4762. return -2;
  4763. }
  4764. /* Reset and init BRB, PRS */
  4765. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_CLEAR, 0x03);
  4766. msleep(50);
  4767. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_SET, 0x03);
  4768. msleep(50);
  4769. bnx2x_init_block(bp, BLOCK_BRB1, PHASE_COMMON);
  4770. bnx2x_init_block(bp, BLOCK_PRS, PHASE_COMMON);
  4771. DP(NETIF_MSG_HW, "part2\n");
  4772. /* Disable inputs of parser neighbor blocks */
  4773. REG_WR(bp, TSDM_REG_ENABLE_IN1, 0x0);
  4774. REG_WR(bp, TCM_REG_PRS_IFEN, 0x0);
  4775. REG_WR(bp, CFC_REG_DEBUG0, 0x1);
  4776. REG_WR(bp, NIG_REG_PRS_REQ_IN_EN, 0x0);
  4777. /* Write 0 to parser credits for CFC search request */
  4778. REG_WR(bp, PRS_REG_CFC_SEARCH_INITIAL_CREDIT, 0x0);
  4779. /* send 10 Ethernet packets */
  4780. for (i = 0; i < 10; i++)
  4781. bnx2x_lb_pckt(bp);
  4782. /* Wait until NIG register shows 10 + 1
  4783. packets of size 11*0x10 = 0xb0 */
  4784. count = 1000 * factor;
  4785. while (count) {
  4786. bnx2x_read_dmae(bp, NIG_REG_STAT2_BRB_OCTET, 2);
  4787. val = *bnx2x_sp(bp, wb_data[0]);
  4788. if (val == 0xb0)
  4789. break;
  4790. msleep(10);
  4791. count--;
  4792. }
  4793. if (val != 0xb0) {
  4794. BNX2X_ERR("NIG timeout val = 0x%x\n", val);
  4795. return -3;
  4796. }
  4797. /* Wait until PRS register shows 2 packets */
  4798. val = REG_RD(bp, PRS_REG_NUM_OF_PACKETS);
  4799. if (val != 2)
  4800. BNX2X_ERR("PRS timeout val = 0x%x\n", val);
  4801. /* Write 1 to parser credits for CFC search request */
  4802. REG_WR(bp, PRS_REG_CFC_SEARCH_INITIAL_CREDIT, 0x1);
  4803. /* Wait until PRS register shows 3 packets */
  4804. msleep(10 * factor);
  4805. /* Wait until NIG register shows 1 packet of size 0x10 */
  4806. val = REG_RD(bp, PRS_REG_NUM_OF_PACKETS);
  4807. if (val != 3)
  4808. BNX2X_ERR("PRS timeout val = 0x%x\n", val);
  4809. /* clear NIG EOP FIFO */
  4810. for (i = 0; i < 11; i++)
  4811. REG_RD(bp, NIG_REG_INGRESS_EOP_LB_FIFO);
  4812. val = REG_RD(bp, NIG_REG_INGRESS_EOP_LB_EMPTY);
  4813. if (val != 1) {
  4814. BNX2X_ERR("clear of NIG failed\n");
  4815. return -4;
  4816. }
  4817. /* Reset and init BRB, PRS, NIG */
  4818. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_CLEAR, 0x03);
  4819. msleep(50);
  4820. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_SET, 0x03);
  4821. msleep(50);
  4822. bnx2x_init_block(bp, BLOCK_BRB1, PHASE_COMMON);
  4823. bnx2x_init_block(bp, BLOCK_PRS, PHASE_COMMON);
  4824. #ifndef BCM_CNIC
  4825. /* set NIC mode */
  4826. REG_WR(bp, PRS_REG_NIC_MODE, 1);
  4827. #endif
  4828. /* Enable inputs of parser neighbor blocks */
  4829. REG_WR(bp, TSDM_REG_ENABLE_IN1, 0x7fffffff);
  4830. REG_WR(bp, TCM_REG_PRS_IFEN, 0x1);
  4831. REG_WR(bp, CFC_REG_DEBUG0, 0x0);
  4832. REG_WR(bp, NIG_REG_PRS_REQ_IN_EN, 0x1);
  4833. DP(NETIF_MSG_HW, "done\n");
  4834. return 0; /* OK */
  4835. }
  4836. static void bnx2x_enable_blocks_attention(struct bnx2x *bp)
  4837. {
  4838. REG_WR(bp, PXP_REG_PXP_INT_MASK_0, 0);
  4839. if (!CHIP_IS_E1x(bp))
  4840. REG_WR(bp, PXP_REG_PXP_INT_MASK_1, 0x40);
  4841. else
  4842. REG_WR(bp, PXP_REG_PXP_INT_MASK_1, 0);
  4843. REG_WR(bp, DORQ_REG_DORQ_INT_MASK, 0);
  4844. REG_WR(bp, CFC_REG_CFC_INT_MASK, 0);
  4845. /*
  4846. * mask read length error interrupts in brb for parser
  4847. * (parsing unit and 'checksum and crc' unit)
  4848. * these errors are legal (PU reads fixed length and CAC can cause
  4849. * read length error on truncated packets)
  4850. */
  4851. REG_WR(bp, BRB1_REG_BRB1_INT_MASK, 0xFC00);
  4852. REG_WR(bp, QM_REG_QM_INT_MASK, 0);
  4853. REG_WR(bp, TM_REG_TM_INT_MASK, 0);
  4854. REG_WR(bp, XSDM_REG_XSDM_INT_MASK_0, 0);
  4855. REG_WR(bp, XSDM_REG_XSDM_INT_MASK_1, 0);
  4856. REG_WR(bp, XCM_REG_XCM_INT_MASK, 0);
  4857. /* REG_WR(bp, XSEM_REG_XSEM_INT_MASK_0, 0); */
  4858. /* REG_WR(bp, XSEM_REG_XSEM_INT_MASK_1, 0); */
  4859. REG_WR(bp, USDM_REG_USDM_INT_MASK_0, 0);
  4860. REG_WR(bp, USDM_REG_USDM_INT_MASK_1, 0);
  4861. REG_WR(bp, UCM_REG_UCM_INT_MASK, 0);
  4862. /* REG_WR(bp, USEM_REG_USEM_INT_MASK_0, 0); */
  4863. /* REG_WR(bp, USEM_REG_USEM_INT_MASK_1, 0); */
  4864. REG_WR(bp, GRCBASE_UPB + PB_REG_PB_INT_MASK, 0);
  4865. REG_WR(bp, CSDM_REG_CSDM_INT_MASK_0, 0);
  4866. REG_WR(bp, CSDM_REG_CSDM_INT_MASK_1, 0);
  4867. REG_WR(bp, CCM_REG_CCM_INT_MASK, 0);
  4868. /* REG_WR(bp, CSEM_REG_CSEM_INT_MASK_0, 0); */
  4869. /* REG_WR(bp, CSEM_REG_CSEM_INT_MASK_1, 0); */
  4870. if (CHIP_REV_IS_FPGA(bp))
  4871. REG_WR(bp, PXP2_REG_PXP2_INT_MASK_0, 0x580000);
  4872. else if (!CHIP_IS_E1x(bp))
  4873. REG_WR(bp, PXP2_REG_PXP2_INT_MASK_0,
  4874. (PXP2_PXP2_INT_MASK_0_REG_PGL_CPL_OF
  4875. | PXP2_PXP2_INT_MASK_0_REG_PGL_CPL_AFT
  4876. | PXP2_PXP2_INT_MASK_0_REG_PGL_PCIE_ATTN
  4877. | PXP2_PXP2_INT_MASK_0_REG_PGL_READ_BLOCKED
  4878. | PXP2_PXP2_INT_MASK_0_REG_PGL_WRITE_BLOCKED));
  4879. else
  4880. REG_WR(bp, PXP2_REG_PXP2_INT_MASK_0, 0x480000);
  4881. REG_WR(bp, TSDM_REG_TSDM_INT_MASK_0, 0);
  4882. REG_WR(bp, TSDM_REG_TSDM_INT_MASK_1, 0);
  4883. REG_WR(bp, TCM_REG_TCM_INT_MASK, 0);
  4884. /* REG_WR(bp, TSEM_REG_TSEM_INT_MASK_0, 0); */
  4885. if (!CHIP_IS_E1x(bp))
  4886. /* enable VFC attentions: bits 11 and 12, bits 31:13 reserved */
  4887. REG_WR(bp, TSEM_REG_TSEM_INT_MASK_1, 0x07ff);
  4888. REG_WR(bp, CDU_REG_CDU_INT_MASK, 0);
  4889. REG_WR(bp, DMAE_REG_DMAE_INT_MASK, 0);
  4890. /* REG_WR(bp, MISC_REG_MISC_INT_MASK, 0); */
  4891. REG_WR(bp, PBF_REG_PBF_INT_MASK, 0x18); /* bit 3,4 masked */
  4892. }
  4893. static void bnx2x_reset_common(struct bnx2x *bp)
  4894. {
  4895. u32 val = 0x1400;
  4896. /* reset_common */
  4897. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_CLEAR,
  4898. 0xd3ffff7f);
  4899. if (CHIP_IS_E3(bp)) {
  4900. val |= MISC_REGISTERS_RESET_REG_2_MSTAT0;
  4901. val |= MISC_REGISTERS_RESET_REG_2_MSTAT1;
  4902. }
  4903. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR, val);
  4904. }
  4905. static void bnx2x_setup_dmae(struct bnx2x *bp)
  4906. {
  4907. bp->dmae_ready = 0;
  4908. spin_lock_init(&bp->dmae_lock);
  4909. }
  4910. static void bnx2x_init_pxp(struct bnx2x *bp)
  4911. {
  4912. u16 devctl;
  4913. int r_order, w_order;
  4914. pci_read_config_word(bp->pdev,
  4915. pci_pcie_cap(bp->pdev) + PCI_EXP_DEVCTL, &devctl);
  4916. DP(NETIF_MSG_HW, "read 0x%x from devctl\n", devctl);
  4917. w_order = ((devctl & PCI_EXP_DEVCTL_PAYLOAD) >> 5);
  4918. if (bp->mrrs == -1)
  4919. r_order = ((devctl & PCI_EXP_DEVCTL_READRQ) >> 12);
  4920. else {
  4921. DP(NETIF_MSG_HW, "force read order to %d\n", bp->mrrs);
  4922. r_order = bp->mrrs;
  4923. }
  4924. bnx2x_init_pxp_arb(bp, r_order, w_order);
  4925. }
  4926. static void bnx2x_setup_fan_failure_detection(struct bnx2x *bp)
  4927. {
  4928. int is_required;
  4929. u32 val;
  4930. int port;
  4931. if (BP_NOMCP(bp))
  4932. return;
  4933. is_required = 0;
  4934. val = SHMEM_RD(bp, dev_info.shared_hw_config.config2) &
  4935. SHARED_HW_CFG_FAN_FAILURE_MASK;
  4936. if (val == SHARED_HW_CFG_FAN_FAILURE_ENABLED)
  4937. is_required = 1;
  4938. /*
  4939. * The fan failure mechanism is usually related to the PHY type since
  4940. * the power consumption of the board is affected by the PHY. Currently,
  4941. * fan is required for most designs with SFX7101, BCM8727 and BCM8481.
  4942. */
  4943. else if (val == SHARED_HW_CFG_FAN_FAILURE_PHY_TYPE)
  4944. for (port = PORT_0; port < PORT_MAX; port++) {
  4945. is_required |=
  4946. bnx2x_fan_failure_det_req(
  4947. bp,
  4948. bp->common.shmem_base,
  4949. bp->common.shmem2_base,
  4950. port);
  4951. }
  4952. DP(NETIF_MSG_HW, "fan detection setting: %d\n", is_required);
  4953. if (is_required == 0)
  4954. return;
  4955. /* Fan failure is indicated by SPIO 5 */
  4956. bnx2x_set_spio(bp, MISC_REGISTERS_SPIO_5,
  4957. MISC_REGISTERS_SPIO_INPUT_HI_Z);
  4958. /* set to active low mode */
  4959. val = REG_RD(bp, MISC_REG_SPIO_INT);
  4960. val |= ((1 << MISC_REGISTERS_SPIO_5) <<
  4961. MISC_REGISTERS_SPIO_INT_OLD_SET_POS);
  4962. REG_WR(bp, MISC_REG_SPIO_INT, val);
  4963. /* enable interrupt to signal the IGU */
  4964. val = REG_RD(bp, MISC_REG_SPIO_EVENT_EN);
  4965. val |= (1 << MISC_REGISTERS_SPIO_5);
  4966. REG_WR(bp, MISC_REG_SPIO_EVENT_EN, val);
  4967. }
  4968. static void bnx2x_pretend_func(struct bnx2x *bp, u8 pretend_func_num)
  4969. {
  4970. u32 offset = 0;
  4971. if (CHIP_IS_E1(bp))
  4972. return;
  4973. if (CHIP_IS_E1H(bp) && (pretend_func_num >= E1H_FUNC_MAX))
  4974. return;
  4975. switch (BP_ABS_FUNC(bp)) {
  4976. case 0:
  4977. offset = PXP2_REG_PGL_PRETEND_FUNC_F0;
  4978. break;
  4979. case 1:
  4980. offset = PXP2_REG_PGL_PRETEND_FUNC_F1;
  4981. break;
  4982. case 2:
  4983. offset = PXP2_REG_PGL_PRETEND_FUNC_F2;
  4984. break;
  4985. case 3:
  4986. offset = PXP2_REG_PGL_PRETEND_FUNC_F3;
  4987. break;
  4988. case 4:
  4989. offset = PXP2_REG_PGL_PRETEND_FUNC_F4;
  4990. break;
  4991. case 5:
  4992. offset = PXP2_REG_PGL_PRETEND_FUNC_F5;
  4993. break;
  4994. case 6:
  4995. offset = PXP2_REG_PGL_PRETEND_FUNC_F6;
  4996. break;
  4997. case 7:
  4998. offset = PXP2_REG_PGL_PRETEND_FUNC_F7;
  4999. break;
  5000. default:
  5001. return;
  5002. }
  5003. REG_WR(bp, offset, pretend_func_num);
  5004. REG_RD(bp, offset);
  5005. DP(NETIF_MSG_HW, "Pretending to func %d\n", pretend_func_num);
  5006. }
  5007. void bnx2x_pf_disable(struct bnx2x *bp)
  5008. {
  5009. u32 val = REG_RD(bp, IGU_REG_PF_CONFIGURATION);
  5010. val &= ~IGU_PF_CONF_FUNC_EN;
  5011. REG_WR(bp, IGU_REG_PF_CONFIGURATION, val);
  5012. REG_WR(bp, PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER, 0);
  5013. REG_WR(bp, CFC_REG_WEAK_ENABLE_PF, 0);
  5014. }
  5015. static inline void bnx2x__common_init_phy(struct bnx2x *bp)
  5016. {
  5017. u32 shmem_base[2], shmem2_base[2];
  5018. shmem_base[0] = bp->common.shmem_base;
  5019. shmem2_base[0] = bp->common.shmem2_base;
  5020. if (!CHIP_IS_E1x(bp)) {
  5021. shmem_base[1] =
  5022. SHMEM2_RD(bp, other_shmem_base_addr);
  5023. shmem2_base[1] =
  5024. SHMEM2_RD(bp, other_shmem2_base_addr);
  5025. }
  5026. bnx2x_acquire_phy_lock(bp);
  5027. bnx2x_common_init_phy(bp, shmem_base, shmem2_base,
  5028. bp->common.chip_id);
  5029. bnx2x_release_phy_lock(bp);
  5030. }
  5031. /**
  5032. * bnx2x_init_hw_common - initialize the HW at the COMMON phase.
  5033. *
  5034. * @bp: driver handle
  5035. */
  5036. static int bnx2x_init_hw_common(struct bnx2x *bp)
  5037. {
  5038. u32 val;
  5039. DP(BNX2X_MSG_MCP, "starting common init func %d\n", BP_ABS_FUNC(bp));
  5040. /*
  5041. * take the UNDI lock to protect undi_unload flow from accessing
  5042. * registers while we're resetting the chip
  5043. */
  5044. bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_RESET);
  5045. bnx2x_reset_common(bp);
  5046. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_SET, 0xffffffff);
  5047. val = 0xfffc;
  5048. if (CHIP_IS_E3(bp)) {
  5049. val |= MISC_REGISTERS_RESET_REG_2_MSTAT0;
  5050. val |= MISC_REGISTERS_RESET_REG_2_MSTAT1;
  5051. }
  5052. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET, val);
  5053. bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_RESET);
  5054. bnx2x_init_block(bp, BLOCK_MISC, PHASE_COMMON);
  5055. if (!CHIP_IS_E1x(bp)) {
  5056. u8 abs_func_id;
  5057. /**
  5058. * 4-port mode or 2-port mode we need to turn of master-enable
  5059. * for everyone, after that, turn it back on for self.
  5060. * so, we disregard multi-function or not, and always disable
  5061. * for all functions on the given path, this means 0,2,4,6 for
  5062. * path 0 and 1,3,5,7 for path 1
  5063. */
  5064. for (abs_func_id = BP_PATH(bp);
  5065. abs_func_id < E2_FUNC_MAX*2; abs_func_id += 2) {
  5066. if (abs_func_id == BP_ABS_FUNC(bp)) {
  5067. REG_WR(bp,
  5068. PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER,
  5069. 1);
  5070. continue;
  5071. }
  5072. bnx2x_pretend_func(bp, abs_func_id);
  5073. /* clear pf enable */
  5074. bnx2x_pf_disable(bp);
  5075. bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
  5076. }
  5077. }
  5078. bnx2x_init_block(bp, BLOCK_PXP, PHASE_COMMON);
  5079. if (CHIP_IS_E1(bp)) {
  5080. /* enable HW interrupt from PXP on USDM overflow
  5081. bit 16 on INT_MASK_0 */
  5082. REG_WR(bp, PXP_REG_PXP_INT_MASK_0, 0);
  5083. }
  5084. bnx2x_init_block(bp, BLOCK_PXP2, PHASE_COMMON);
  5085. bnx2x_init_pxp(bp);
  5086. #ifdef __BIG_ENDIAN
  5087. REG_WR(bp, PXP2_REG_RQ_QM_ENDIAN_M, 1);
  5088. REG_WR(bp, PXP2_REG_RQ_TM_ENDIAN_M, 1);
  5089. REG_WR(bp, PXP2_REG_RQ_SRC_ENDIAN_M, 1);
  5090. REG_WR(bp, PXP2_REG_RQ_CDU_ENDIAN_M, 1);
  5091. REG_WR(bp, PXP2_REG_RQ_DBG_ENDIAN_M, 1);
  5092. /* make sure this value is 0 */
  5093. REG_WR(bp, PXP2_REG_RQ_HC_ENDIAN_M, 0);
  5094. /* REG_WR(bp, PXP2_REG_RD_PBF_SWAP_MODE, 1); */
  5095. REG_WR(bp, PXP2_REG_RD_QM_SWAP_MODE, 1);
  5096. REG_WR(bp, PXP2_REG_RD_TM_SWAP_MODE, 1);
  5097. REG_WR(bp, PXP2_REG_RD_SRC_SWAP_MODE, 1);
  5098. REG_WR(bp, PXP2_REG_RD_CDURD_SWAP_MODE, 1);
  5099. #endif
  5100. bnx2x_ilt_init_page_size(bp, INITOP_SET);
  5101. if (CHIP_REV_IS_FPGA(bp) && CHIP_IS_E1H(bp))
  5102. REG_WR(bp, PXP2_REG_PGL_TAGS_LIMIT, 0x1);
  5103. /* let the HW do it's magic ... */
  5104. msleep(100);
  5105. /* finish PXP init */
  5106. val = REG_RD(bp, PXP2_REG_RQ_CFG_DONE);
  5107. if (val != 1) {
  5108. BNX2X_ERR("PXP2 CFG failed\n");
  5109. return -EBUSY;
  5110. }
  5111. val = REG_RD(bp, PXP2_REG_RD_INIT_DONE);
  5112. if (val != 1) {
  5113. BNX2X_ERR("PXP2 RD_INIT failed\n");
  5114. return -EBUSY;
  5115. }
  5116. /* Timers bug workaround E2 only. We need to set the entire ILT to
  5117. * have entries with value "0" and valid bit on.
  5118. * This needs to be done by the first PF that is loaded in a path
  5119. * (i.e. common phase)
  5120. */
  5121. if (!CHIP_IS_E1x(bp)) {
  5122. /* In E2 there is a bug in the timers block that can cause function 6 / 7
  5123. * (i.e. vnic3) to start even if it is marked as "scan-off".
  5124. * This occurs when a different function (func2,3) is being marked
  5125. * as "scan-off". Real-life scenario for example: if a driver is being
  5126. * load-unloaded while func6,7 are down. This will cause the timer to access
  5127. * the ilt, translate to a logical address and send a request to read/write.
  5128. * Since the ilt for the function that is down is not valid, this will cause
  5129. * a translation error which is unrecoverable.
  5130. * The Workaround is intended to make sure that when this happens nothing fatal
  5131. * will occur. The workaround:
  5132. * 1. First PF driver which loads on a path will:
  5133. * a. After taking the chip out of reset, by using pretend,
  5134. * it will write "0" to the following registers of
  5135. * the other vnics.
  5136. * REG_WR(pdev, PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER, 0);
  5137. * REG_WR(pdev, CFC_REG_WEAK_ENABLE_PF,0);
  5138. * REG_WR(pdev, CFC_REG_STRONG_ENABLE_PF,0);
  5139. * And for itself it will write '1' to
  5140. * PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER to enable
  5141. * dmae-operations (writing to pram for example.)
  5142. * note: can be done for only function 6,7 but cleaner this
  5143. * way.
  5144. * b. Write zero+valid to the entire ILT.
  5145. * c. Init the first_timers_ilt_entry, last_timers_ilt_entry of
  5146. * VNIC3 (of that port). The range allocated will be the
  5147. * entire ILT. This is needed to prevent ILT range error.
  5148. * 2. Any PF driver load flow:
  5149. * a. ILT update with the physical addresses of the allocated
  5150. * logical pages.
  5151. * b. Wait 20msec. - note that this timeout is needed to make
  5152. * sure there are no requests in one of the PXP internal
  5153. * queues with "old" ILT addresses.
  5154. * c. PF enable in the PGLC.
  5155. * d. Clear the was_error of the PF in the PGLC. (could have
  5156. * occured while driver was down)
  5157. * e. PF enable in the CFC (WEAK + STRONG)
  5158. * f. Timers scan enable
  5159. * 3. PF driver unload flow:
  5160. * a. Clear the Timers scan_en.
  5161. * b. Polling for scan_on=0 for that PF.
  5162. * c. Clear the PF enable bit in the PXP.
  5163. * d. Clear the PF enable in the CFC (WEAK + STRONG)
  5164. * e. Write zero+valid to all ILT entries (The valid bit must
  5165. * stay set)
  5166. * f. If this is VNIC 3 of a port then also init
  5167. * first_timers_ilt_entry to zero and last_timers_ilt_entry
  5168. * to the last enrty in the ILT.
  5169. *
  5170. * Notes:
  5171. * Currently the PF error in the PGLC is non recoverable.
  5172. * In the future the there will be a recovery routine for this error.
  5173. * Currently attention is masked.
  5174. * Having an MCP lock on the load/unload process does not guarantee that
  5175. * there is no Timer disable during Func6/7 enable. This is because the
  5176. * Timers scan is currently being cleared by the MCP on FLR.
  5177. * Step 2.d can be done only for PF6/7 and the driver can also check if
  5178. * there is error before clearing it. But the flow above is simpler and
  5179. * more general.
  5180. * All ILT entries are written by zero+valid and not just PF6/7
  5181. * ILT entries since in the future the ILT entries allocation for
  5182. * PF-s might be dynamic.
  5183. */
  5184. struct ilt_client_info ilt_cli;
  5185. struct bnx2x_ilt ilt;
  5186. memset(&ilt_cli, 0, sizeof(struct ilt_client_info));
  5187. memset(&ilt, 0, sizeof(struct bnx2x_ilt));
  5188. /* initialize dummy TM client */
  5189. ilt_cli.start = 0;
  5190. ilt_cli.end = ILT_NUM_PAGE_ENTRIES - 1;
  5191. ilt_cli.client_num = ILT_CLIENT_TM;
  5192. /* Step 1: set zeroes to all ilt page entries with valid bit on
  5193. * Step 2: set the timers first/last ilt entry to point
  5194. * to the entire range to prevent ILT range error for 3rd/4th
  5195. * vnic (this code assumes existance of the vnic)
  5196. *
  5197. * both steps performed by call to bnx2x_ilt_client_init_op()
  5198. * with dummy TM client
  5199. *
  5200. * we must use pretend since PXP2_REG_RQ_##blk##_FIRST_ILT
  5201. * and his brother are split registers
  5202. */
  5203. bnx2x_pretend_func(bp, (BP_PATH(bp) + 6));
  5204. bnx2x_ilt_client_init_op_ilt(bp, &ilt, &ilt_cli, INITOP_CLEAR);
  5205. bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
  5206. REG_WR(bp, PXP2_REG_RQ_DRAM_ALIGN, BNX2X_PXP_DRAM_ALIGN);
  5207. REG_WR(bp, PXP2_REG_RQ_DRAM_ALIGN_RD, BNX2X_PXP_DRAM_ALIGN);
  5208. REG_WR(bp, PXP2_REG_RQ_DRAM_ALIGN_SEL, 1);
  5209. }
  5210. REG_WR(bp, PXP2_REG_RQ_DISABLE_INPUTS, 0);
  5211. REG_WR(bp, PXP2_REG_RD_DISABLE_INPUTS, 0);
  5212. if (!CHIP_IS_E1x(bp)) {
  5213. int factor = CHIP_REV_IS_EMUL(bp) ? 1000 :
  5214. (CHIP_REV_IS_FPGA(bp) ? 400 : 0);
  5215. bnx2x_init_block(bp, BLOCK_PGLUE_B, PHASE_COMMON);
  5216. bnx2x_init_block(bp, BLOCK_ATC, PHASE_COMMON);
  5217. /* let the HW do it's magic ... */
  5218. do {
  5219. msleep(200);
  5220. val = REG_RD(bp, ATC_REG_ATC_INIT_DONE);
  5221. } while (factor-- && (val != 1));
  5222. if (val != 1) {
  5223. BNX2X_ERR("ATC_INIT failed\n");
  5224. return -EBUSY;
  5225. }
  5226. }
  5227. bnx2x_init_block(bp, BLOCK_DMAE, PHASE_COMMON);
  5228. /* clean the DMAE memory */
  5229. bp->dmae_ready = 1;
  5230. bnx2x_init_fill(bp, TSEM_REG_PRAM, 0, 8, 1);
  5231. bnx2x_init_block(bp, BLOCK_TCM, PHASE_COMMON);
  5232. bnx2x_init_block(bp, BLOCK_UCM, PHASE_COMMON);
  5233. bnx2x_init_block(bp, BLOCK_CCM, PHASE_COMMON);
  5234. bnx2x_init_block(bp, BLOCK_XCM, PHASE_COMMON);
  5235. bnx2x_read_dmae(bp, XSEM_REG_PASSIVE_BUFFER, 3);
  5236. bnx2x_read_dmae(bp, CSEM_REG_PASSIVE_BUFFER, 3);
  5237. bnx2x_read_dmae(bp, TSEM_REG_PASSIVE_BUFFER, 3);
  5238. bnx2x_read_dmae(bp, USEM_REG_PASSIVE_BUFFER, 3);
  5239. bnx2x_init_block(bp, BLOCK_QM, PHASE_COMMON);
  5240. /* QM queues pointers table */
  5241. bnx2x_qm_init_ptr_table(bp, bp->qm_cid_count, INITOP_SET);
  5242. /* soft reset pulse */
  5243. REG_WR(bp, QM_REG_SOFT_RESET, 1);
  5244. REG_WR(bp, QM_REG_SOFT_RESET, 0);
  5245. #ifdef BCM_CNIC
  5246. bnx2x_init_block(bp, BLOCK_TM, PHASE_COMMON);
  5247. #endif
  5248. bnx2x_init_block(bp, BLOCK_DORQ, PHASE_COMMON);
  5249. REG_WR(bp, DORQ_REG_DPM_CID_OFST, BNX2X_DB_SHIFT);
  5250. if (!CHIP_REV_IS_SLOW(bp))
  5251. /* enable hw interrupt from doorbell Q */
  5252. REG_WR(bp, DORQ_REG_DORQ_INT_MASK, 0);
  5253. bnx2x_init_block(bp, BLOCK_BRB1, PHASE_COMMON);
  5254. bnx2x_init_block(bp, BLOCK_PRS, PHASE_COMMON);
  5255. REG_WR(bp, PRS_REG_A_PRSU_20, 0xf);
  5256. if (!CHIP_IS_E1(bp))
  5257. REG_WR(bp, PRS_REG_E1HOV_MODE, bp->path_has_ovlan);
  5258. if (!CHIP_IS_E1x(bp) && !CHIP_IS_E3B0(bp))
  5259. /* Bit-map indicating which L2 hdrs may appear
  5260. * after the basic Ethernet header
  5261. */
  5262. REG_WR(bp, PRS_REG_HDRS_AFTER_BASIC,
  5263. bp->path_has_ovlan ? 7 : 6);
  5264. bnx2x_init_block(bp, BLOCK_TSDM, PHASE_COMMON);
  5265. bnx2x_init_block(bp, BLOCK_CSDM, PHASE_COMMON);
  5266. bnx2x_init_block(bp, BLOCK_USDM, PHASE_COMMON);
  5267. bnx2x_init_block(bp, BLOCK_XSDM, PHASE_COMMON);
  5268. if (!CHIP_IS_E1x(bp)) {
  5269. /* reset VFC memories */
  5270. REG_WR(bp, TSEM_REG_FAST_MEMORY + VFC_REG_MEMORIES_RST,
  5271. VFC_MEMORIES_RST_REG_CAM_RST |
  5272. VFC_MEMORIES_RST_REG_RAM_RST);
  5273. REG_WR(bp, XSEM_REG_FAST_MEMORY + VFC_REG_MEMORIES_RST,
  5274. VFC_MEMORIES_RST_REG_CAM_RST |
  5275. VFC_MEMORIES_RST_REG_RAM_RST);
  5276. msleep(20);
  5277. }
  5278. bnx2x_init_block(bp, BLOCK_TSEM, PHASE_COMMON);
  5279. bnx2x_init_block(bp, BLOCK_USEM, PHASE_COMMON);
  5280. bnx2x_init_block(bp, BLOCK_CSEM, PHASE_COMMON);
  5281. bnx2x_init_block(bp, BLOCK_XSEM, PHASE_COMMON);
  5282. /* sync semi rtc */
  5283. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_CLEAR,
  5284. 0x80000000);
  5285. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_SET,
  5286. 0x80000000);
  5287. bnx2x_init_block(bp, BLOCK_UPB, PHASE_COMMON);
  5288. bnx2x_init_block(bp, BLOCK_XPB, PHASE_COMMON);
  5289. bnx2x_init_block(bp, BLOCK_PBF, PHASE_COMMON);
  5290. if (!CHIP_IS_E1x(bp))
  5291. REG_WR(bp, PBF_REG_HDRS_AFTER_BASIC,
  5292. bp->path_has_ovlan ? 7 : 6);
  5293. REG_WR(bp, SRC_REG_SOFT_RST, 1);
  5294. bnx2x_init_block(bp, BLOCK_SRC, PHASE_COMMON);
  5295. #ifdef BCM_CNIC
  5296. REG_WR(bp, SRC_REG_KEYSEARCH_0, 0x63285672);
  5297. REG_WR(bp, SRC_REG_KEYSEARCH_1, 0x24b8f2cc);
  5298. REG_WR(bp, SRC_REG_KEYSEARCH_2, 0x223aef9b);
  5299. REG_WR(bp, SRC_REG_KEYSEARCH_3, 0x26001e3a);
  5300. REG_WR(bp, SRC_REG_KEYSEARCH_4, 0x7ae91116);
  5301. REG_WR(bp, SRC_REG_KEYSEARCH_5, 0x5ce5230b);
  5302. REG_WR(bp, SRC_REG_KEYSEARCH_6, 0x298d8adf);
  5303. REG_WR(bp, SRC_REG_KEYSEARCH_7, 0x6eb0ff09);
  5304. REG_WR(bp, SRC_REG_KEYSEARCH_8, 0x1830f82f);
  5305. REG_WR(bp, SRC_REG_KEYSEARCH_9, 0x01e46be7);
  5306. #endif
  5307. REG_WR(bp, SRC_REG_SOFT_RST, 0);
  5308. if (sizeof(union cdu_context) != 1024)
  5309. /* we currently assume that a context is 1024 bytes */
  5310. dev_alert(&bp->pdev->dev, "please adjust the size "
  5311. "of cdu_context(%ld)\n",
  5312. (long)sizeof(union cdu_context));
  5313. bnx2x_init_block(bp, BLOCK_CDU, PHASE_COMMON);
  5314. val = (4 << 24) + (0 << 12) + 1024;
  5315. REG_WR(bp, CDU_REG_CDU_GLOBAL_PARAMS, val);
  5316. bnx2x_init_block(bp, BLOCK_CFC, PHASE_COMMON);
  5317. REG_WR(bp, CFC_REG_INIT_REG, 0x7FF);
  5318. /* enable context validation interrupt from CFC */
  5319. REG_WR(bp, CFC_REG_CFC_INT_MASK, 0);
  5320. /* set the thresholds to prevent CFC/CDU race */
  5321. REG_WR(bp, CFC_REG_DEBUG0, 0x20020000);
  5322. bnx2x_init_block(bp, BLOCK_HC, PHASE_COMMON);
  5323. if (!CHIP_IS_E1x(bp) && BP_NOMCP(bp))
  5324. REG_WR(bp, IGU_REG_RESET_MEMORIES, 0x36);
  5325. bnx2x_init_block(bp, BLOCK_IGU, PHASE_COMMON);
  5326. bnx2x_init_block(bp, BLOCK_MISC_AEU, PHASE_COMMON);
  5327. /* Reset PCIE errors for debug */
  5328. REG_WR(bp, 0x2814, 0xffffffff);
  5329. REG_WR(bp, 0x3820, 0xffffffff);
  5330. if (!CHIP_IS_E1x(bp)) {
  5331. REG_WR(bp, PCICFG_OFFSET + PXPCS_TL_CONTROL_5,
  5332. (PXPCS_TL_CONTROL_5_ERR_UNSPPORT1 |
  5333. PXPCS_TL_CONTROL_5_ERR_UNSPPORT));
  5334. REG_WR(bp, PCICFG_OFFSET + PXPCS_TL_FUNC345_STAT,
  5335. (PXPCS_TL_FUNC345_STAT_ERR_UNSPPORT4 |
  5336. PXPCS_TL_FUNC345_STAT_ERR_UNSPPORT3 |
  5337. PXPCS_TL_FUNC345_STAT_ERR_UNSPPORT2));
  5338. REG_WR(bp, PCICFG_OFFSET + PXPCS_TL_FUNC678_STAT,
  5339. (PXPCS_TL_FUNC678_STAT_ERR_UNSPPORT7 |
  5340. PXPCS_TL_FUNC678_STAT_ERR_UNSPPORT6 |
  5341. PXPCS_TL_FUNC678_STAT_ERR_UNSPPORT5));
  5342. }
  5343. bnx2x_init_block(bp, BLOCK_NIG, PHASE_COMMON);
  5344. if (!CHIP_IS_E1(bp)) {
  5345. /* in E3 this done in per-port section */
  5346. if (!CHIP_IS_E3(bp))
  5347. REG_WR(bp, NIG_REG_LLH_MF_MODE, IS_MF(bp));
  5348. }
  5349. if (CHIP_IS_E1H(bp))
  5350. /* not applicable for E2 (and above ...) */
  5351. REG_WR(bp, NIG_REG_LLH_E1HOV_MODE, IS_MF_SD(bp));
  5352. if (CHIP_REV_IS_SLOW(bp))
  5353. msleep(200);
  5354. /* finish CFC init */
  5355. val = reg_poll(bp, CFC_REG_LL_INIT_DONE, 1, 100, 10);
  5356. if (val != 1) {
  5357. BNX2X_ERR("CFC LL_INIT failed\n");
  5358. return -EBUSY;
  5359. }
  5360. val = reg_poll(bp, CFC_REG_AC_INIT_DONE, 1, 100, 10);
  5361. if (val != 1) {
  5362. BNX2X_ERR("CFC AC_INIT failed\n");
  5363. return -EBUSY;
  5364. }
  5365. val = reg_poll(bp, CFC_REG_CAM_INIT_DONE, 1, 100, 10);
  5366. if (val != 1) {
  5367. BNX2X_ERR("CFC CAM_INIT failed\n");
  5368. return -EBUSY;
  5369. }
  5370. REG_WR(bp, CFC_REG_DEBUG0, 0);
  5371. if (CHIP_IS_E1(bp)) {
  5372. /* read NIG statistic
  5373. to see if this is our first up since powerup */
  5374. bnx2x_read_dmae(bp, NIG_REG_STAT2_BRB_OCTET, 2);
  5375. val = *bnx2x_sp(bp, wb_data[0]);
  5376. /* do internal memory self test */
  5377. if ((val == 0) && bnx2x_int_mem_test(bp)) {
  5378. BNX2X_ERR("internal mem self test failed\n");
  5379. return -EBUSY;
  5380. }
  5381. }
  5382. bnx2x_setup_fan_failure_detection(bp);
  5383. /* clear PXP2 attentions */
  5384. REG_RD(bp, PXP2_REG_PXP2_INT_STS_CLR_0);
  5385. bnx2x_enable_blocks_attention(bp);
  5386. bnx2x_enable_blocks_parity(bp);
  5387. if (!BP_NOMCP(bp)) {
  5388. if (CHIP_IS_E1x(bp))
  5389. bnx2x__common_init_phy(bp);
  5390. } else
  5391. BNX2X_ERR("Bootcode is missing - can not initialize link\n");
  5392. return 0;
  5393. }
  5394. /**
  5395. * bnx2x_init_hw_common_chip - init HW at the COMMON_CHIP phase.
  5396. *
  5397. * @bp: driver handle
  5398. */
  5399. static int bnx2x_init_hw_common_chip(struct bnx2x *bp)
  5400. {
  5401. int rc = bnx2x_init_hw_common(bp);
  5402. if (rc)
  5403. return rc;
  5404. /* In E2 2-PORT mode, same ext phy is used for the two paths */
  5405. if (!BP_NOMCP(bp))
  5406. bnx2x__common_init_phy(bp);
  5407. return 0;
  5408. }
  5409. static int bnx2x_init_hw_port(struct bnx2x *bp)
  5410. {
  5411. int port = BP_PORT(bp);
  5412. int init_phase = port ? PHASE_PORT1 : PHASE_PORT0;
  5413. u32 low, high;
  5414. u32 val;
  5415. bnx2x__link_reset(bp);
  5416. DP(BNX2X_MSG_MCP, "starting port init port %d\n", port);
  5417. REG_WR(bp, NIG_REG_MASK_INTERRUPT_PORT0 + port*4, 0);
  5418. bnx2x_init_block(bp, BLOCK_MISC, init_phase);
  5419. bnx2x_init_block(bp, BLOCK_PXP, init_phase);
  5420. bnx2x_init_block(bp, BLOCK_PXP2, init_phase);
  5421. /* Timers bug workaround: disables the pf_master bit in pglue at
  5422. * common phase, we need to enable it here before any dmae access are
  5423. * attempted. Therefore we manually added the enable-master to the
  5424. * port phase (it also happens in the function phase)
  5425. */
  5426. if (!CHIP_IS_E1x(bp))
  5427. REG_WR(bp, PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER, 1);
  5428. bnx2x_init_block(bp, BLOCK_ATC, init_phase);
  5429. bnx2x_init_block(bp, BLOCK_DMAE, init_phase);
  5430. bnx2x_init_block(bp, BLOCK_PGLUE_B, init_phase);
  5431. bnx2x_init_block(bp, BLOCK_QM, init_phase);
  5432. bnx2x_init_block(bp, BLOCK_TCM, init_phase);
  5433. bnx2x_init_block(bp, BLOCK_UCM, init_phase);
  5434. bnx2x_init_block(bp, BLOCK_CCM, init_phase);
  5435. bnx2x_init_block(bp, BLOCK_XCM, init_phase);
  5436. /* QM cid (connection) count */
  5437. bnx2x_qm_init_cid_count(bp, bp->qm_cid_count, INITOP_SET);
  5438. #ifdef BCM_CNIC
  5439. bnx2x_init_block(bp, BLOCK_TM, init_phase);
  5440. REG_WR(bp, TM_REG_LIN0_SCAN_TIME + port*4, 20);
  5441. REG_WR(bp, TM_REG_LIN0_MAX_ACTIVE_CID + port*4, 31);
  5442. #endif
  5443. bnx2x_init_block(bp, BLOCK_DORQ, init_phase);
  5444. if (CHIP_IS_E1(bp) || CHIP_IS_E1H(bp)) {
  5445. bnx2x_init_block(bp, BLOCK_BRB1, init_phase);
  5446. if (IS_MF(bp))
  5447. low = ((bp->flags & ONE_PORT_FLAG) ? 160 : 246);
  5448. else if (bp->dev->mtu > 4096) {
  5449. if (bp->flags & ONE_PORT_FLAG)
  5450. low = 160;
  5451. else {
  5452. val = bp->dev->mtu;
  5453. /* (24*1024 + val*4)/256 */
  5454. low = 96 + (val/64) +
  5455. ((val % 64) ? 1 : 0);
  5456. }
  5457. } else
  5458. low = ((bp->flags & ONE_PORT_FLAG) ? 80 : 160);
  5459. high = low + 56; /* 14*1024/256 */
  5460. REG_WR(bp, BRB1_REG_PAUSE_LOW_THRESHOLD_0 + port*4, low);
  5461. REG_WR(bp, BRB1_REG_PAUSE_HIGH_THRESHOLD_0 + port*4, high);
  5462. }
  5463. if (CHIP_MODE_IS_4_PORT(bp))
  5464. REG_WR(bp, (BP_PORT(bp) ?
  5465. BRB1_REG_MAC_GUARANTIED_1 :
  5466. BRB1_REG_MAC_GUARANTIED_0), 40);
  5467. bnx2x_init_block(bp, BLOCK_PRS, init_phase);
  5468. if (CHIP_IS_E3B0(bp))
  5469. /* Ovlan exists only if we are in multi-function +
  5470. * switch-dependent mode, in switch-independent there
  5471. * is no ovlan headers
  5472. */
  5473. REG_WR(bp, BP_PORT(bp) ?
  5474. PRS_REG_HDRS_AFTER_BASIC_PORT_1 :
  5475. PRS_REG_HDRS_AFTER_BASIC_PORT_0,
  5476. (bp->path_has_ovlan ? 7 : 6));
  5477. bnx2x_init_block(bp, BLOCK_TSDM, init_phase);
  5478. bnx2x_init_block(bp, BLOCK_CSDM, init_phase);
  5479. bnx2x_init_block(bp, BLOCK_USDM, init_phase);
  5480. bnx2x_init_block(bp, BLOCK_XSDM, init_phase);
  5481. bnx2x_init_block(bp, BLOCK_TSEM, init_phase);
  5482. bnx2x_init_block(bp, BLOCK_USEM, init_phase);
  5483. bnx2x_init_block(bp, BLOCK_CSEM, init_phase);
  5484. bnx2x_init_block(bp, BLOCK_XSEM, init_phase);
  5485. bnx2x_init_block(bp, BLOCK_UPB, init_phase);
  5486. bnx2x_init_block(bp, BLOCK_XPB, init_phase);
  5487. bnx2x_init_block(bp, BLOCK_PBF, init_phase);
  5488. if (CHIP_IS_E1x(bp)) {
  5489. /* configure PBF to work without PAUSE mtu 9000 */
  5490. REG_WR(bp, PBF_REG_P0_PAUSE_ENABLE + port*4, 0);
  5491. /* update threshold */
  5492. REG_WR(bp, PBF_REG_P0_ARB_THRSH + port*4, (9040/16));
  5493. /* update init credit */
  5494. REG_WR(bp, PBF_REG_P0_INIT_CRD + port*4, (9040/16) + 553 - 22);
  5495. /* probe changes */
  5496. REG_WR(bp, PBF_REG_INIT_P0 + port*4, 1);
  5497. udelay(50);
  5498. REG_WR(bp, PBF_REG_INIT_P0 + port*4, 0);
  5499. }
  5500. #ifdef BCM_CNIC
  5501. bnx2x_init_block(bp, BLOCK_SRC, init_phase);
  5502. #endif
  5503. bnx2x_init_block(bp, BLOCK_CDU, init_phase);
  5504. bnx2x_init_block(bp, BLOCK_CFC, init_phase);
  5505. if (CHIP_IS_E1(bp)) {
  5506. REG_WR(bp, HC_REG_LEADING_EDGE_0 + port*8, 0);
  5507. REG_WR(bp, HC_REG_TRAILING_EDGE_0 + port*8, 0);
  5508. }
  5509. bnx2x_init_block(bp, BLOCK_HC, init_phase);
  5510. bnx2x_init_block(bp, BLOCK_IGU, init_phase);
  5511. bnx2x_init_block(bp, BLOCK_MISC_AEU, init_phase);
  5512. /* init aeu_mask_attn_func_0/1:
  5513. * - SF mode: bits 3-7 are masked. only bits 0-2 are in use
  5514. * - MF mode: bit 3 is masked. bits 0-2 are in use as in SF
  5515. * bits 4-7 are used for "per vn group attention" */
  5516. val = IS_MF(bp) ? 0xF7 : 0x7;
  5517. /* Enable DCBX attention for all but E1 */
  5518. val |= CHIP_IS_E1(bp) ? 0 : 0x10;
  5519. REG_WR(bp, MISC_REG_AEU_MASK_ATTN_FUNC_0 + port*4, val);
  5520. bnx2x_init_block(bp, BLOCK_NIG, init_phase);
  5521. if (!CHIP_IS_E1x(bp)) {
  5522. /* Bit-map indicating which L2 hdrs may appear after the
  5523. * basic Ethernet header
  5524. */
  5525. REG_WR(bp, BP_PORT(bp) ?
  5526. NIG_REG_P1_HDRS_AFTER_BASIC :
  5527. NIG_REG_P0_HDRS_AFTER_BASIC,
  5528. IS_MF_SD(bp) ? 7 : 6);
  5529. if (CHIP_IS_E3(bp))
  5530. REG_WR(bp, BP_PORT(bp) ?
  5531. NIG_REG_LLH1_MF_MODE :
  5532. NIG_REG_LLH_MF_MODE, IS_MF(bp));
  5533. }
  5534. if (!CHIP_IS_E3(bp))
  5535. REG_WR(bp, NIG_REG_XGXS_SERDES0_MODE_SEL + port*4, 1);
  5536. if (!CHIP_IS_E1(bp)) {
  5537. /* 0x2 disable mf_ov, 0x1 enable */
  5538. REG_WR(bp, NIG_REG_LLH0_BRB1_DRV_MASK_MF + port*4,
  5539. (IS_MF_SD(bp) ? 0x1 : 0x2));
  5540. if (!CHIP_IS_E1x(bp)) {
  5541. val = 0;
  5542. switch (bp->mf_mode) {
  5543. case MULTI_FUNCTION_SD:
  5544. val = 1;
  5545. break;
  5546. case MULTI_FUNCTION_SI:
  5547. val = 2;
  5548. break;
  5549. }
  5550. REG_WR(bp, (BP_PORT(bp) ? NIG_REG_LLH1_CLS_TYPE :
  5551. NIG_REG_LLH0_CLS_TYPE), val);
  5552. }
  5553. {
  5554. REG_WR(bp, NIG_REG_LLFC_ENABLE_0 + port*4, 0);
  5555. REG_WR(bp, NIG_REG_LLFC_OUT_EN_0 + port*4, 0);
  5556. REG_WR(bp, NIG_REG_PAUSE_ENABLE_0 + port*4, 1);
  5557. }
  5558. }
  5559. /* If SPIO5 is set to generate interrupts, enable it for this port */
  5560. val = REG_RD(bp, MISC_REG_SPIO_EVENT_EN);
  5561. if (val & (1 << MISC_REGISTERS_SPIO_5)) {
  5562. u32 reg_addr = (port ? MISC_REG_AEU_ENABLE1_FUNC_1_OUT_0 :
  5563. MISC_REG_AEU_ENABLE1_FUNC_0_OUT_0);
  5564. val = REG_RD(bp, reg_addr);
  5565. val |= AEU_INPUTS_ATTN_BITS_SPIO5;
  5566. REG_WR(bp, reg_addr, val);
  5567. }
  5568. return 0;
  5569. }
  5570. static void bnx2x_ilt_wr(struct bnx2x *bp, u32 index, dma_addr_t addr)
  5571. {
  5572. int reg;
  5573. if (CHIP_IS_E1(bp))
  5574. reg = PXP2_REG_RQ_ONCHIP_AT + index*8;
  5575. else
  5576. reg = PXP2_REG_RQ_ONCHIP_AT_B0 + index*8;
  5577. bnx2x_wb_wr(bp, reg, ONCHIP_ADDR1(addr), ONCHIP_ADDR2(addr));
  5578. }
  5579. static inline void bnx2x_igu_clear_sb(struct bnx2x *bp, u8 idu_sb_id)
  5580. {
  5581. bnx2x_igu_clear_sb_gen(bp, BP_FUNC(bp), idu_sb_id, true /*PF*/);
  5582. }
  5583. static inline void bnx2x_clear_func_ilt(struct bnx2x *bp, u32 func)
  5584. {
  5585. u32 i, base = FUNC_ILT_BASE(func);
  5586. for (i = base; i < base + ILT_PER_FUNC; i++)
  5587. bnx2x_ilt_wr(bp, i, 0);
  5588. }
  5589. static int bnx2x_init_hw_func(struct bnx2x *bp)
  5590. {
  5591. int port = BP_PORT(bp);
  5592. int func = BP_FUNC(bp);
  5593. int init_phase = PHASE_PF0 + func;
  5594. struct bnx2x_ilt *ilt = BP_ILT(bp);
  5595. u16 cdu_ilt_start;
  5596. u32 addr, val;
  5597. u32 main_mem_base, main_mem_size, main_mem_prty_clr;
  5598. int i, main_mem_width, rc;
  5599. DP(BNX2X_MSG_MCP, "starting func init func %d\n", func);
  5600. /* FLR cleanup - hmmm */
  5601. if (!CHIP_IS_E1x(bp)) {
  5602. rc = bnx2x_pf_flr_clnup(bp);
  5603. if (rc)
  5604. return rc;
  5605. }
  5606. /* set MSI reconfigure capability */
  5607. if (bp->common.int_block == INT_BLOCK_HC) {
  5608. addr = (port ? HC_REG_CONFIG_1 : HC_REG_CONFIG_0);
  5609. val = REG_RD(bp, addr);
  5610. val |= HC_CONFIG_0_REG_MSI_ATTN_EN_0;
  5611. REG_WR(bp, addr, val);
  5612. }
  5613. bnx2x_init_block(bp, BLOCK_PXP, init_phase);
  5614. bnx2x_init_block(bp, BLOCK_PXP2, init_phase);
  5615. ilt = BP_ILT(bp);
  5616. cdu_ilt_start = ilt->clients[ILT_CLIENT_CDU].start;
  5617. for (i = 0; i < L2_ILT_LINES(bp); i++) {
  5618. ilt->lines[cdu_ilt_start + i].page =
  5619. bp->context.vcxt + (ILT_PAGE_CIDS * i);
  5620. ilt->lines[cdu_ilt_start + i].page_mapping =
  5621. bp->context.cxt_mapping + (CDU_ILT_PAGE_SZ * i);
  5622. /* cdu ilt pages are allocated manually so there's no need to
  5623. set the size */
  5624. }
  5625. bnx2x_ilt_init_op(bp, INITOP_SET);
  5626. #ifdef BCM_CNIC
  5627. bnx2x_src_init_t2(bp, bp->t2, bp->t2_mapping, SRC_CONN_NUM);
  5628. /* T1 hash bits value determines the T1 number of entries */
  5629. REG_WR(bp, SRC_REG_NUMBER_HASH_BITS0 + port*4, SRC_HASH_BITS);
  5630. #endif
  5631. #ifndef BCM_CNIC
  5632. /* set NIC mode */
  5633. REG_WR(bp, PRS_REG_NIC_MODE, 1);
  5634. #endif /* BCM_CNIC */
  5635. if (!CHIP_IS_E1x(bp)) {
  5636. u32 pf_conf = IGU_PF_CONF_FUNC_EN;
  5637. /* Turn on a single ISR mode in IGU if driver is going to use
  5638. * INT#x or MSI
  5639. */
  5640. if (!(bp->flags & USING_MSIX_FLAG))
  5641. pf_conf |= IGU_PF_CONF_SINGLE_ISR_EN;
  5642. /*
  5643. * Timers workaround bug: function init part.
  5644. * Need to wait 20msec after initializing ILT,
  5645. * needed to make sure there are no requests in
  5646. * one of the PXP internal queues with "old" ILT addresses
  5647. */
  5648. msleep(20);
  5649. /*
  5650. * Master enable - Due to WB DMAE writes performed before this
  5651. * register is re-initialized as part of the regular function
  5652. * init
  5653. */
  5654. REG_WR(bp, PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER, 1);
  5655. /* Enable the function in IGU */
  5656. REG_WR(bp, IGU_REG_PF_CONFIGURATION, pf_conf);
  5657. }
  5658. bp->dmae_ready = 1;
  5659. bnx2x_init_block(bp, BLOCK_PGLUE_B, init_phase);
  5660. if (!CHIP_IS_E1x(bp))
  5661. REG_WR(bp, PGLUE_B_REG_WAS_ERROR_PF_7_0_CLR, func);
  5662. bnx2x_init_block(bp, BLOCK_ATC, init_phase);
  5663. bnx2x_init_block(bp, BLOCK_DMAE, init_phase);
  5664. bnx2x_init_block(bp, BLOCK_NIG, init_phase);
  5665. bnx2x_init_block(bp, BLOCK_SRC, init_phase);
  5666. bnx2x_init_block(bp, BLOCK_MISC, init_phase);
  5667. bnx2x_init_block(bp, BLOCK_TCM, init_phase);
  5668. bnx2x_init_block(bp, BLOCK_UCM, init_phase);
  5669. bnx2x_init_block(bp, BLOCK_CCM, init_phase);
  5670. bnx2x_init_block(bp, BLOCK_XCM, init_phase);
  5671. bnx2x_init_block(bp, BLOCK_TSEM, init_phase);
  5672. bnx2x_init_block(bp, BLOCK_USEM, init_phase);
  5673. bnx2x_init_block(bp, BLOCK_CSEM, init_phase);
  5674. bnx2x_init_block(bp, BLOCK_XSEM, init_phase);
  5675. if (!CHIP_IS_E1x(bp))
  5676. REG_WR(bp, QM_REG_PF_EN, 1);
  5677. if (!CHIP_IS_E1x(bp)) {
  5678. REG_WR(bp, TSEM_REG_VFPF_ERR_NUM, BNX2X_MAX_NUM_OF_VFS + func);
  5679. REG_WR(bp, USEM_REG_VFPF_ERR_NUM, BNX2X_MAX_NUM_OF_VFS + func);
  5680. REG_WR(bp, CSEM_REG_VFPF_ERR_NUM, BNX2X_MAX_NUM_OF_VFS + func);
  5681. REG_WR(bp, XSEM_REG_VFPF_ERR_NUM, BNX2X_MAX_NUM_OF_VFS + func);
  5682. }
  5683. bnx2x_init_block(bp, BLOCK_QM, init_phase);
  5684. bnx2x_init_block(bp, BLOCK_TM, init_phase);
  5685. bnx2x_init_block(bp, BLOCK_DORQ, init_phase);
  5686. bnx2x_init_block(bp, BLOCK_BRB1, init_phase);
  5687. bnx2x_init_block(bp, BLOCK_PRS, init_phase);
  5688. bnx2x_init_block(bp, BLOCK_TSDM, init_phase);
  5689. bnx2x_init_block(bp, BLOCK_CSDM, init_phase);
  5690. bnx2x_init_block(bp, BLOCK_USDM, init_phase);
  5691. bnx2x_init_block(bp, BLOCK_XSDM, init_phase);
  5692. bnx2x_init_block(bp, BLOCK_UPB, init_phase);
  5693. bnx2x_init_block(bp, BLOCK_XPB, init_phase);
  5694. bnx2x_init_block(bp, BLOCK_PBF, init_phase);
  5695. if (!CHIP_IS_E1x(bp))
  5696. REG_WR(bp, PBF_REG_DISABLE_PF, 0);
  5697. bnx2x_init_block(bp, BLOCK_CDU, init_phase);
  5698. bnx2x_init_block(bp, BLOCK_CFC, init_phase);
  5699. if (!CHIP_IS_E1x(bp))
  5700. REG_WR(bp, CFC_REG_WEAK_ENABLE_PF, 1);
  5701. if (IS_MF(bp)) {
  5702. REG_WR(bp, NIG_REG_LLH0_FUNC_EN + port*8, 1);
  5703. REG_WR(bp, NIG_REG_LLH0_FUNC_VLAN_ID + port*8, bp->mf_ov);
  5704. }
  5705. bnx2x_init_block(bp, BLOCK_MISC_AEU, init_phase);
  5706. /* HC init per function */
  5707. if (bp->common.int_block == INT_BLOCK_HC) {
  5708. if (CHIP_IS_E1H(bp)) {
  5709. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_12 + func*4, 0);
  5710. REG_WR(bp, HC_REG_LEADING_EDGE_0 + port*8, 0);
  5711. REG_WR(bp, HC_REG_TRAILING_EDGE_0 + port*8, 0);
  5712. }
  5713. bnx2x_init_block(bp, BLOCK_HC, init_phase);
  5714. } else {
  5715. int num_segs, sb_idx, prod_offset;
  5716. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_12 + func*4, 0);
  5717. if (!CHIP_IS_E1x(bp)) {
  5718. REG_WR(bp, IGU_REG_LEADING_EDGE_LATCH, 0);
  5719. REG_WR(bp, IGU_REG_TRAILING_EDGE_LATCH, 0);
  5720. }
  5721. bnx2x_init_block(bp, BLOCK_IGU, init_phase);
  5722. if (!CHIP_IS_E1x(bp)) {
  5723. int dsb_idx = 0;
  5724. /**
  5725. * Producer memory:
  5726. * E2 mode: address 0-135 match to the mapping memory;
  5727. * 136 - PF0 default prod; 137 - PF1 default prod;
  5728. * 138 - PF2 default prod; 139 - PF3 default prod;
  5729. * 140 - PF0 attn prod; 141 - PF1 attn prod;
  5730. * 142 - PF2 attn prod; 143 - PF3 attn prod;
  5731. * 144-147 reserved.
  5732. *
  5733. * E1.5 mode - In backward compatible mode;
  5734. * for non default SB; each even line in the memory
  5735. * holds the U producer and each odd line hold
  5736. * the C producer. The first 128 producers are for
  5737. * NDSB (PF0 - 0-31; PF1 - 32-63 and so on). The last 20
  5738. * producers are for the DSB for each PF.
  5739. * Each PF has five segments: (the order inside each
  5740. * segment is PF0; PF1; PF2; PF3) - 128-131 U prods;
  5741. * 132-135 C prods; 136-139 X prods; 140-143 T prods;
  5742. * 144-147 attn prods;
  5743. */
  5744. /* non-default-status-blocks */
  5745. num_segs = CHIP_INT_MODE_IS_BC(bp) ?
  5746. IGU_BC_NDSB_NUM_SEGS : IGU_NORM_NDSB_NUM_SEGS;
  5747. for (sb_idx = 0; sb_idx < bp->igu_sb_cnt; sb_idx++) {
  5748. prod_offset = (bp->igu_base_sb + sb_idx) *
  5749. num_segs;
  5750. for (i = 0; i < num_segs; i++) {
  5751. addr = IGU_REG_PROD_CONS_MEMORY +
  5752. (prod_offset + i) * 4;
  5753. REG_WR(bp, addr, 0);
  5754. }
  5755. /* send consumer update with value 0 */
  5756. bnx2x_ack_sb(bp, bp->igu_base_sb + sb_idx,
  5757. USTORM_ID, 0, IGU_INT_NOP, 1);
  5758. bnx2x_igu_clear_sb(bp,
  5759. bp->igu_base_sb + sb_idx);
  5760. }
  5761. /* default-status-blocks */
  5762. num_segs = CHIP_INT_MODE_IS_BC(bp) ?
  5763. IGU_BC_DSB_NUM_SEGS : IGU_NORM_DSB_NUM_SEGS;
  5764. if (CHIP_MODE_IS_4_PORT(bp))
  5765. dsb_idx = BP_FUNC(bp);
  5766. else
  5767. dsb_idx = BP_VN(bp);
  5768. prod_offset = (CHIP_INT_MODE_IS_BC(bp) ?
  5769. IGU_BC_BASE_DSB_PROD + dsb_idx :
  5770. IGU_NORM_BASE_DSB_PROD + dsb_idx);
  5771. /*
  5772. * igu prods come in chunks of E1HVN_MAX (4) -
  5773. * does not matters what is the current chip mode
  5774. */
  5775. for (i = 0; i < (num_segs * E1HVN_MAX);
  5776. i += E1HVN_MAX) {
  5777. addr = IGU_REG_PROD_CONS_MEMORY +
  5778. (prod_offset + i)*4;
  5779. REG_WR(bp, addr, 0);
  5780. }
  5781. /* send consumer update with 0 */
  5782. if (CHIP_INT_MODE_IS_BC(bp)) {
  5783. bnx2x_ack_sb(bp, bp->igu_dsb_id,
  5784. USTORM_ID, 0, IGU_INT_NOP, 1);
  5785. bnx2x_ack_sb(bp, bp->igu_dsb_id,
  5786. CSTORM_ID, 0, IGU_INT_NOP, 1);
  5787. bnx2x_ack_sb(bp, bp->igu_dsb_id,
  5788. XSTORM_ID, 0, IGU_INT_NOP, 1);
  5789. bnx2x_ack_sb(bp, bp->igu_dsb_id,
  5790. TSTORM_ID, 0, IGU_INT_NOP, 1);
  5791. bnx2x_ack_sb(bp, bp->igu_dsb_id,
  5792. ATTENTION_ID, 0, IGU_INT_NOP, 1);
  5793. } else {
  5794. bnx2x_ack_sb(bp, bp->igu_dsb_id,
  5795. USTORM_ID, 0, IGU_INT_NOP, 1);
  5796. bnx2x_ack_sb(bp, bp->igu_dsb_id,
  5797. ATTENTION_ID, 0, IGU_INT_NOP, 1);
  5798. }
  5799. bnx2x_igu_clear_sb(bp, bp->igu_dsb_id);
  5800. /* !!! these should become driver const once
  5801. rf-tool supports split-68 const */
  5802. REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_LSB, 0);
  5803. REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_MSB, 0);
  5804. REG_WR(bp, IGU_REG_SB_MASK_LSB, 0);
  5805. REG_WR(bp, IGU_REG_SB_MASK_MSB, 0);
  5806. REG_WR(bp, IGU_REG_PBA_STATUS_LSB, 0);
  5807. REG_WR(bp, IGU_REG_PBA_STATUS_MSB, 0);
  5808. }
  5809. }
  5810. /* Reset PCIE errors for debug */
  5811. REG_WR(bp, 0x2114, 0xffffffff);
  5812. REG_WR(bp, 0x2120, 0xffffffff);
  5813. if (CHIP_IS_E1x(bp)) {
  5814. main_mem_size = HC_REG_MAIN_MEMORY_SIZE / 2; /*dwords*/
  5815. main_mem_base = HC_REG_MAIN_MEMORY +
  5816. BP_PORT(bp) * (main_mem_size * 4);
  5817. main_mem_prty_clr = HC_REG_HC_PRTY_STS_CLR;
  5818. main_mem_width = 8;
  5819. val = REG_RD(bp, main_mem_prty_clr);
  5820. if (val)
  5821. DP(BNX2X_MSG_MCP, "Hmmm... Parity errors in HC "
  5822. "block during "
  5823. "function init (0x%x)!\n", val);
  5824. /* Clear "false" parity errors in MSI-X table */
  5825. for (i = main_mem_base;
  5826. i < main_mem_base + main_mem_size * 4;
  5827. i += main_mem_width) {
  5828. bnx2x_read_dmae(bp, i, main_mem_width / 4);
  5829. bnx2x_write_dmae(bp, bnx2x_sp_mapping(bp, wb_data),
  5830. i, main_mem_width / 4);
  5831. }
  5832. /* Clear HC parity attention */
  5833. REG_RD(bp, main_mem_prty_clr);
  5834. }
  5835. #ifdef BNX2X_STOP_ON_ERROR
  5836. /* Enable STORMs SP logging */
  5837. REG_WR8(bp, BAR_USTRORM_INTMEM +
  5838. USTORM_RECORD_SLOW_PATH_OFFSET(BP_FUNC(bp)), 1);
  5839. REG_WR8(bp, BAR_TSTRORM_INTMEM +
  5840. TSTORM_RECORD_SLOW_PATH_OFFSET(BP_FUNC(bp)), 1);
  5841. REG_WR8(bp, BAR_CSTRORM_INTMEM +
  5842. CSTORM_RECORD_SLOW_PATH_OFFSET(BP_FUNC(bp)), 1);
  5843. REG_WR8(bp, BAR_XSTRORM_INTMEM +
  5844. XSTORM_RECORD_SLOW_PATH_OFFSET(BP_FUNC(bp)), 1);
  5845. #endif
  5846. bnx2x_phy_probe(&bp->link_params);
  5847. return 0;
  5848. }
  5849. void bnx2x_free_mem(struct bnx2x *bp)
  5850. {
  5851. /* fastpath */
  5852. bnx2x_free_fp_mem(bp);
  5853. /* end of fastpath */
  5854. BNX2X_PCI_FREE(bp->def_status_blk, bp->def_status_blk_mapping,
  5855. sizeof(struct host_sp_status_block));
  5856. BNX2X_PCI_FREE(bp->fw_stats, bp->fw_stats_mapping,
  5857. bp->fw_stats_data_sz + bp->fw_stats_req_sz);
  5858. BNX2X_PCI_FREE(bp->slowpath, bp->slowpath_mapping,
  5859. sizeof(struct bnx2x_slowpath));
  5860. BNX2X_PCI_FREE(bp->context.vcxt, bp->context.cxt_mapping,
  5861. bp->context.size);
  5862. bnx2x_ilt_mem_op(bp, ILT_MEMOP_FREE);
  5863. BNX2X_FREE(bp->ilt->lines);
  5864. #ifdef BCM_CNIC
  5865. if (!CHIP_IS_E1x(bp))
  5866. BNX2X_PCI_FREE(bp->cnic_sb.e2_sb, bp->cnic_sb_mapping,
  5867. sizeof(struct host_hc_status_block_e2));
  5868. else
  5869. BNX2X_PCI_FREE(bp->cnic_sb.e1x_sb, bp->cnic_sb_mapping,
  5870. sizeof(struct host_hc_status_block_e1x));
  5871. BNX2X_PCI_FREE(bp->t2, bp->t2_mapping, SRC_T2_SZ);
  5872. #endif
  5873. BNX2X_PCI_FREE(bp->spq, bp->spq_mapping, BCM_PAGE_SIZE);
  5874. BNX2X_PCI_FREE(bp->eq_ring, bp->eq_mapping,
  5875. BCM_PAGE_SIZE * NUM_EQ_PAGES);
  5876. }
  5877. static inline int bnx2x_alloc_fw_stats_mem(struct bnx2x *bp)
  5878. {
  5879. int num_groups;
  5880. int is_fcoe_stats = NO_FCOE(bp) ? 0 : 1;
  5881. /* number of queues for statistics is number of eth queues + FCoE */
  5882. u8 num_queue_stats = BNX2X_NUM_ETH_QUEUES(bp) + is_fcoe_stats;
  5883. /* Total number of FW statistics requests =
  5884. * 1 for port stats + 1 for PF stats + potential 1 for FCoE stats +
  5885. * num of queues
  5886. */
  5887. bp->fw_stats_num = 2 + is_fcoe_stats + num_queue_stats;
  5888. /* Request is built from stats_query_header and an array of
  5889. * stats_query_cmd_group each of which contains
  5890. * STATS_QUERY_CMD_COUNT rules. The real number or requests is
  5891. * configured in the stats_query_header.
  5892. */
  5893. num_groups = ((bp->fw_stats_num) / STATS_QUERY_CMD_COUNT) +
  5894. (((bp->fw_stats_num) % STATS_QUERY_CMD_COUNT) ? 1 : 0);
  5895. bp->fw_stats_req_sz = sizeof(struct stats_query_header) +
  5896. num_groups * sizeof(struct stats_query_cmd_group);
  5897. /* Data for statistics requests + stats_conter
  5898. *
  5899. * stats_counter holds per-STORM counters that are incremented
  5900. * when STORM has finished with the current request.
  5901. *
  5902. * memory for FCoE offloaded statistics are counted anyway,
  5903. * even if they will not be sent.
  5904. */
  5905. bp->fw_stats_data_sz = sizeof(struct per_port_stats) +
  5906. sizeof(struct per_pf_stats) +
  5907. sizeof(struct fcoe_statistics_params) +
  5908. sizeof(struct per_queue_stats) * num_queue_stats +
  5909. sizeof(struct stats_counter);
  5910. BNX2X_PCI_ALLOC(bp->fw_stats, &bp->fw_stats_mapping,
  5911. bp->fw_stats_data_sz + bp->fw_stats_req_sz);
  5912. /* Set shortcuts */
  5913. bp->fw_stats_req = (struct bnx2x_fw_stats_req *)bp->fw_stats;
  5914. bp->fw_stats_req_mapping = bp->fw_stats_mapping;
  5915. bp->fw_stats_data = (struct bnx2x_fw_stats_data *)
  5916. ((u8 *)bp->fw_stats + bp->fw_stats_req_sz);
  5917. bp->fw_stats_data_mapping = bp->fw_stats_mapping +
  5918. bp->fw_stats_req_sz;
  5919. return 0;
  5920. alloc_mem_err:
  5921. BNX2X_PCI_FREE(bp->fw_stats, bp->fw_stats_mapping,
  5922. bp->fw_stats_data_sz + bp->fw_stats_req_sz);
  5923. return -ENOMEM;
  5924. }
  5925. int bnx2x_alloc_mem(struct bnx2x *bp)
  5926. {
  5927. #ifdef BCM_CNIC
  5928. if (!CHIP_IS_E1x(bp))
  5929. /* size = the status block + ramrod buffers */
  5930. BNX2X_PCI_ALLOC(bp->cnic_sb.e2_sb, &bp->cnic_sb_mapping,
  5931. sizeof(struct host_hc_status_block_e2));
  5932. else
  5933. BNX2X_PCI_ALLOC(bp->cnic_sb.e1x_sb, &bp->cnic_sb_mapping,
  5934. sizeof(struct host_hc_status_block_e1x));
  5935. /* allocate searcher T2 table */
  5936. BNX2X_PCI_ALLOC(bp->t2, &bp->t2_mapping, SRC_T2_SZ);
  5937. #endif
  5938. BNX2X_PCI_ALLOC(bp->def_status_blk, &bp->def_status_blk_mapping,
  5939. sizeof(struct host_sp_status_block));
  5940. BNX2X_PCI_ALLOC(bp->slowpath, &bp->slowpath_mapping,
  5941. sizeof(struct bnx2x_slowpath));
  5942. /* Allocated memory for FW statistics */
  5943. if (bnx2x_alloc_fw_stats_mem(bp))
  5944. goto alloc_mem_err;
  5945. bp->context.size = sizeof(union cdu_context) * BNX2X_L2_CID_COUNT(bp);
  5946. BNX2X_PCI_ALLOC(bp->context.vcxt, &bp->context.cxt_mapping,
  5947. bp->context.size);
  5948. BNX2X_ALLOC(bp->ilt->lines, sizeof(struct ilt_line) * ILT_MAX_LINES);
  5949. if (bnx2x_ilt_mem_op(bp, ILT_MEMOP_ALLOC))
  5950. goto alloc_mem_err;
  5951. /* Slow path ring */
  5952. BNX2X_PCI_ALLOC(bp->spq, &bp->spq_mapping, BCM_PAGE_SIZE);
  5953. /* EQ */
  5954. BNX2X_PCI_ALLOC(bp->eq_ring, &bp->eq_mapping,
  5955. BCM_PAGE_SIZE * NUM_EQ_PAGES);
  5956. /* fastpath */
  5957. /* need to be done at the end, since it's self adjusting to amount
  5958. * of memory available for RSS queues
  5959. */
  5960. if (bnx2x_alloc_fp_mem(bp))
  5961. goto alloc_mem_err;
  5962. return 0;
  5963. alloc_mem_err:
  5964. bnx2x_free_mem(bp);
  5965. return -ENOMEM;
  5966. }
  5967. /*
  5968. * Init service functions
  5969. */
  5970. int bnx2x_set_mac_one(struct bnx2x *bp, u8 *mac,
  5971. struct bnx2x_vlan_mac_obj *obj, bool set,
  5972. int mac_type, unsigned long *ramrod_flags)
  5973. {
  5974. int rc;
  5975. struct bnx2x_vlan_mac_ramrod_params ramrod_param;
  5976. memset(&ramrod_param, 0, sizeof(ramrod_param));
  5977. /* Fill general parameters */
  5978. ramrod_param.vlan_mac_obj = obj;
  5979. ramrod_param.ramrod_flags = *ramrod_flags;
  5980. /* Fill a user request section if needed */
  5981. if (!test_bit(RAMROD_CONT, ramrod_flags)) {
  5982. memcpy(ramrod_param.user_req.u.mac.mac, mac, ETH_ALEN);
  5983. __set_bit(mac_type, &ramrod_param.user_req.vlan_mac_flags);
  5984. /* Set the command: ADD or DEL */
  5985. if (set)
  5986. ramrod_param.user_req.cmd = BNX2X_VLAN_MAC_ADD;
  5987. else
  5988. ramrod_param.user_req.cmd = BNX2X_VLAN_MAC_DEL;
  5989. }
  5990. rc = bnx2x_config_vlan_mac(bp, &ramrod_param);
  5991. if (rc < 0)
  5992. BNX2X_ERR("%s MAC failed\n", (set ? "Set" : "Del"));
  5993. return rc;
  5994. }
  5995. int bnx2x_del_all_macs(struct bnx2x *bp,
  5996. struct bnx2x_vlan_mac_obj *mac_obj,
  5997. int mac_type, bool wait_for_comp)
  5998. {
  5999. int rc;
  6000. unsigned long ramrod_flags = 0, vlan_mac_flags = 0;
  6001. /* Wait for completion of requested */
  6002. if (wait_for_comp)
  6003. __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
  6004. /* Set the mac type of addresses we want to clear */
  6005. __set_bit(mac_type, &vlan_mac_flags);
  6006. rc = mac_obj->delete_all(bp, mac_obj, &vlan_mac_flags, &ramrod_flags);
  6007. if (rc < 0)
  6008. BNX2X_ERR("Failed to delete MACs: %d\n", rc);
  6009. return rc;
  6010. }
  6011. int bnx2x_set_eth_mac(struct bnx2x *bp, bool set)
  6012. {
  6013. unsigned long ramrod_flags = 0;
  6014. #ifdef BCM_CNIC
  6015. if (is_zero_ether_addr(bp->dev->dev_addr) && IS_MF_ISCSI_SD(bp)) {
  6016. DP(NETIF_MSG_IFUP, "Ignoring Zero MAC for iSCSI SD mode\n");
  6017. return 0;
  6018. }
  6019. #endif
  6020. DP(NETIF_MSG_IFUP, "Adding Eth MAC\n");
  6021. __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
  6022. /* Eth MAC is set on RSS leading client (fp[0]) */
  6023. return bnx2x_set_mac_one(bp, bp->dev->dev_addr, &bp->fp->mac_obj, set,
  6024. BNX2X_ETH_MAC, &ramrod_flags);
  6025. }
  6026. int bnx2x_setup_leading(struct bnx2x *bp)
  6027. {
  6028. return bnx2x_setup_queue(bp, &bp->fp[0], 1);
  6029. }
  6030. /**
  6031. * bnx2x_set_int_mode - configure interrupt mode
  6032. *
  6033. * @bp: driver handle
  6034. *
  6035. * In case of MSI-X it will also try to enable MSI-X.
  6036. */
  6037. static void __devinit bnx2x_set_int_mode(struct bnx2x *bp)
  6038. {
  6039. switch (int_mode) {
  6040. case INT_MODE_MSI:
  6041. bnx2x_enable_msi(bp);
  6042. /* falling through... */
  6043. case INT_MODE_INTx:
  6044. bp->num_queues = 1 + NON_ETH_CONTEXT_USE;
  6045. DP(NETIF_MSG_IFUP, "set number of queues to 1\n");
  6046. break;
  6047. default:
  6048. /* Set number of queues according to bp->multi_mode value */
  6049. bnx2x_set_num_queues(bp);
  6050. DP(NETIF_MSG_IFUP, "set number of queues to %d\n",
  6051. bp->num_queues);
  6052. /* if we can't use MSI-X we only need one fp,
  6053. * so try to enable MSI-X with the requested number of fp's
  6054. * and fallback to MSI or legacy INTx with one fp
  6055. */
  6056. if (bnx2x_enable_msix(bp)) {
  6057. /* failed to enable MSI-X */
  6058. if (bp->multi_mode)
  6059. DP(NETIF_MSG_IFUP,
  6060. "Multi requested but failed to "
  6061. "enable MSI-X (%d), "
  6062. "set number of queues to %d\n",
  6063. bp->num_queues,
  6064. 1 + NON_ETH_CONTEXT_USE);
  6065. bp->num_queues = 1 + NON_ETH_CONTEXT_USE;
  6066. /* Try to enable MSI */
  6067. if (!(bp->flags & DISABLE_MSI_FLAG))
  6068. bnx2x_enable_msi(bp);
  6069. }
  6070. break;
  6071. }
  6072. }
  6073. /* must be called prioir to any HW initializations */
  6074. static inline u16 bnx2x_cid_ilt_lines(struct bnx2x *bp)
  6075. {
  6076. return L2_ILT_LINES(bp);
  6077. }
  6078. void bnx2x_ilt_set_info(struct bnx2x *bp)
  6079. {
  6080. struct ilt_client_info *ilt_client;
  6081. struct bnx2x_ilt *ilt = BP_ILT(bp);
  6082. u16 line = 0;
  6083. ilt->start_line = FUNC_ILT_BASE(BP_FUNC(bp));
  6084. DP(BNX2X_MSG_SP, "ilt starts at line %d\n", ilt->start_line);
  6085. /* CDU */
  6086. ilt_client = &ilt->clients[ILT_CLIENT_CDU];
  6087. ilt_client->client_num = ILT_CLIENT_CDU;
  6088. ilt_client->page_size = CDU_ILT_PAGE_SZ;
  6089. ilt_client->flags = ILT_CLIENT_SKIP_MEM;
  6090. ilt_client->start = line;
  6091. line += bnx2x_cid_ilt_lines(bp);
  6092. #ifdef BCM_CNIC
  6093. line += CNIC_ILT_LINES;
  6094. #endif
  6095. ilt_client->end = line - 1;
  6096. DP(BNX2X_MSG_SP, "ilt client[CDU]: start %d, end %d, psz 0x%x, "
  6097. "flags 0x%x, hw psz %d\n",
  6098. ilt_client->start,
  6099. ilt_client->end,
  6100. ilt_client->page_size,
  6101. ilt_client->flags,
  6102. ilog2(ilt_client->page_size >> 12));
  6103. /* QM */
  6104. if (QM_INIT(bp->qm_cid_count)) {
  6105. ilt_client = &ilt->clients[ILT_CLIENT_QM];
  6106. ilt_client->client_num = ILT_CLIENT_QM;
  6107. ilt_client->page_size = QM_ILT_PAGE_SZ;
  6108. ilt_client->flags = 0;
  6109. ilt_client->start = line;
  6110. /* 4 bytes for each cid */
  6111. line += DIV_ROUND_UP(bp->qm_cid_count * QM_QUEUES_PER_FUNC * 4,
  6112. QM_ILT_PAGE_SZ);
  6113. ilt_client->end = line - 1;
  6114. DP(BNX2X_MSG_SP, "ilt client[QM]: start %d, end %d, psz 0x%x, "
  6115. "flags 0x%x, hw psz %d\n",
  6116. ilt_client->start,
  6117. ilt_client->end,
  6118. ilt_client->page_size,
  6119. ilt_client->flags,
  6120. ilog2(ilt_client->page_size >> 12));
  6121. }
  6122. /* SRC */
  6123. ilt_client = &ilt->clients[ILT_CLIENT_SRC];
  6124. #ifdef BCM_CNIC
  6125. ilt_client->client_num = ILT_CLIENT_SRC;
  6126. ilt_client->page_size = SRC_ILT_PAGE_SZ;
  6127. ilt_client->flags = 0;
  6128. ilt_client->start = line;
  6129. line += SRC_ILT_LINES;
  6130. ilt_client->end = line - 1;
  6131. DP(BNX2X_MSG_SP, "ilt client[SRC]: start %d, end %d, psz 0x%x, "
  6132. "flags 0x%x, hw psz %d\n",
  6133. ilt_client->start,
  6134. ilt_client->end,
  6135. ilt_client->page_size,
  6136. ilt_client->flags,
  6137. ilog2(ilt_client->page_size >> 12));
  6138. #else
  6139. ilt_client->flags = (ILT_CLIENT_SKIP_INIT | ILT_CLIENT_SKIP_MEM);
  6140. #endif
  6141. /* TM */
  6142. ilt_client = &ilt->clients[ILT_CLIENT_TM];
  6143. #ifdef BCM_CNIC
  6144. ilt_client->client_num = ILT_CLIENT_TM;
  6145. ilt_client->page_size = TM_ILT_PAGE_SZ;
  6146. ilt_client->flags = 0;
  6147. ilt_client->start = line;
  6148. line += TM_ILT_LINES;
  6149. ilt_client->end = line - 1;
  6150. DP(BNX2X_MSG_SP, "ilt client[TM]: start %d, end %d, psz 0x%x, "
  6151. "flags 0x%x, hw psz %d\n",
  6152. ilt_client->start,
  6153. ilt_client->end,
  6154. ilt_client->page_size,
  6155. ilt_client->flags,
  6156. ilog2(ilt_client->page_size >> 12));
  6157. #else
  6158. ilt_client->flags = (ILT_CLIENT_SKIP_INIT | ILT_CLIENT_SKIP_MEM);
  6159. #endif
  6160. BUG_ON(line > ILT_MAX_LINES);
  6161. }
  6162. /**
  6163. * bnx2x_pf_q_prep_init - prepare INIT transition parameters
  6164. *
  6165. * @bp: driver handle
  6166. * @fp: pointer to fastpath
  6167. * @init_params: pointer to parameters structure
  6168. *
  6169. * parameters configured:
  6170. * - HC configuration
  6171. * - Queue's CDU context
  6172. */
  6173. static inline void bnx2x_pf_q_prep_init(struct bnx2x *bp,
  6174. struct bnx2x_fastpath *fp, struct bnx2x_queue_init_params *init_params)
  6175. {
  6176. u8 cos;
  6177. /* FCoE Queue uses Default SB, thus has no HC capabilities */
  6178. if (!IS_FCOE_FP(fp)) {
  6179. __set_bit(BNX2X_Q_FLG_HC, &init_params->rx.flags);
  6180. __set_bit(BNX2X_Q_FLG_HC, &init_params->tx.flags);
  6181. /* If HC is supporterd, enable host coalescing in the transition
  6182. * to INIT state.
  6183. */
  6184. __set_bit(BNX2X_Q_FLG_HC_EN, &init_params->rx.flags);
  6185. __set_bit(BNX2X_Q_FLG_HC_EN, &init_params->tx.flags);
  6186. /* HC rate */
  6187. init_params->rx.hc_rate = bp->rx_ticks ?
  6188. (1000000 / bp->rx_ticks) : 0;
  6189. init_params->tx.hc_rate = bp->tx_ticks ?
  6190. (1000000 / bp->tx_ticks) : 0;
  6191. /* FW SB ID */
  6192. init_params->rx.fw_sb_id = init_params->tx.fw_sb_id =
  6193. fp->fw_sb_id;
  6194. /*
  6195. * CQ index among the SB indices: FCoE clients uses the default
  6196. * SB, therefore it's different.
  6197. */
  6198. init_params->rx.sb_cq_index = HC_INDEX_ETH_RX_CQ_CONS;
  6199. init_params->tx.sb_cq_index = HC_INDEX_ETH_FIRST_TX_CQ_CONS;
  6200. }
  6201. /* set maximum number of COSs supported by this queue */
  6202. init_params->max_cos = fp->max_cos;
  6203. DP(BNX2X_MSG_SP, "fp: %d setting queue params max cos to: %d\n",
  6204. fp->index, init_params->max_cos);
  6205. /* set the context pointers queue object */
  6206. for (cos = FIRST_TX_COS_INDEX; cos < init_params->max_cos; cos++)
  6207. init_params->cxts[cos] =
  6208. &bp->context.vcxt[fp->txdata[cos].cid].eth;
  6209. }
  6210. int bnx2x_setup_tx_only(struct bnx2x *bp, struct bnx2x_fastpath *fp,
  6211. struct bnx2x_queue_state_params *q_params,
  6212. struct bnx2x_queue_setup_tx_only_params *tx_only_params,
  6213. int tx_index, bool leading)
  6214. {
  6215. memset(tx_only_params, 0, sizeof(*tx_only_params));
  6216. /* Set the command */
  6217. q_params->cmd = BNX2X_Q_CMD_SETUP_TX_ONLY;
  6218. /* Set tx-only QUEUE flags: don't zero statistics */
  6219. tx_only_params->flags = bnx2x_get_common_flags(bp, fp, false);
  6220. /* choose the index of the cid to send the slow path on */
  6221. tx_only_params->cid_index = tx_index;
  6222. /* Set general TX_ONLY_SETUP parameters */
  6223. bnx2x_pf_q_prep_general(bp, fp, &tx_only_params->gen_params, tx_index);
  6224. /* Set Tx TX_ONLY_SETUP parameters */
  6225. bnx2x_pf_tx_q_prep(bp, fp, &tx_only_params->txq_params, tx_index);
  6226. DP(BNX2X_MSG_SP, "preparing to send tx-only ramrod for connection:"
  6227. "cos %d, primary cid %d, cid %d, "
  6228. "client id %d, sp-client id %d, flags %lx\n",
  6229. tx_index, q_params->q_obj->cids[FIRST_TX_COS_INDEX],
  6230. q_params->q_obj->cids[tx_index], q_params->q_obj->cl_id,
  6231. tx_only_params->gen_params.spcl_id, tx_only_params->flags);
  6232. /* send the ramrod */
  6233. return bnx2x_queue_state_change(bp, q_params);
  6234. }
  6235. /**
  6236. * bnx2x_setup_queue - setup queue
  6237. *
  6238. * @bp: driver handle
  6239. * @fp: pointer to fastpath
  6240. * @leading: is leading
  6241. *
  6242. * This function performs 2 steps in a Queue state machine
  6243. * actually: 1) RESET->INIT 2) INIT->SETUP
  6244. */
  6245. int bnx2x_setup_queue(struct bnx2x *bp, struct bnx2x_fastpath *fp,
  6246. bool leading)
  6247. {
  6248. struct bnx2x_queue_state_params q_params = {0};
  6249. struct bnx2x_queue_setup_params *setup_params =
  6250. &q_params.params.setup;
  6251. struct bnx2x_queue_setup_tx_only_params *tx_only_params =
  6252. &q_params.params.tx_only;
  6253. int rc;
  6254. u8 tx_index;
  6255. DP(BNX2X_MSG_SP, "setting up queue %d\n", fp->index);
  6256. /* reset IGU state skip FCoE L2 queue */
  6257. if (!IS_FCOE_FP(fp))
  6258. bnx2x_ack_sb(bp, fp->igu_sb_id, USTORM_ID, 0,
  6259. IGU_INT_ENABLE, 0);
  6260. q_params.q_obj = &fp->q_obj;
  6261. /* We want to wait for completion in this context */
  6262. __set_bit(RAMROD_COMP_WAIT, &q_params.ramrod_flags);
  6263. /* Prepare the INIT parameters */
  6264. bnx2x_pf_q_prep_init(bp, fp, &q_params.params.init);
  6265. /* Set the command */
  6266. q_params.cmd = BNX2X_Q_CMD_INIT;
  6267. /* Change the state to INIT */
  6268. rc = bnx2x_queue_state_change(bp, &q_params);
  6269. if (rc) {
  6270. BNX2X_ERR("Queue(%d) INIT failed\n", fp->index);
  6271. return rc;
  6272. }
  6273. DP(BNX2X_MSG_SP, "init complete\n");
  6274. /* Now move the Queue to the SETUP state... */
  6275. memset(setup_params, 0, sizeof(*setup_params));
  6276. /* Set QUEUE flags */
  6277. setup_params->flags = bnx2x_get_q_flags(bp, fp, leading);
  6278. /* Set general SETUP parameters */
  6279. bnx2x_pf_q_prep_general(bp, fp, &setup_params->gen_params,
  6280. FIRST_TX_COS_INDEX);
  6281. bnx2x_pf_rx_q_prep(bp, fp, &setup_params->pause_params,
  6282. &setup_params->rxq_params);
  6283. bnx2x_pf_tx_q_prep(bp, fp, &setup_params->txq_params,
  6284. FIRST_TX_COS_INDEX);
  6285. /* Set the command */
  6286. q_params.cmd = BNX2X_Q_CMD_SETUP;
  6287. /* Change the state to SETUP */
  6288. rc = bnx2x_queue_state_change(bp, &q_params);
  6289. if (rc) {
  6290. BNX2X_ERR("Queue(%d) SETUP failed\n", fp->index);
  6291. return rc;
  6292. }
  6293. /* loop through the relevant tx-only indices */
  6294. for (tx_index = FIRST_TX_ONLY_COS_INDEX;
  6295. tx_index < fp->max_cos;
  6296. tx_index++) {
  6297. /* prepare and send tx-only ramrod*/
  6298. rc = bnx2x_setup_tx_only(bp, fp, &q_params,
  6299. tx_only_params, tx_index, leading);
  6300. if (rc) {
  6301. BNX2X_ERR("Queue(%d.%d) TX_ONLY_SETUP failed\n",
  6302. fp->index, tx_index);
  6303. return rc;
  6304. }
  6305. }
  6306. return rc;
  6307. }
  6308. static int bnx2x_stop_queue(struct bnx2x *bp, int index)
  6309. {
  6310. struct bnx2x_fastpath *fp = &bp->fp[index];
  6311. struct bnx2x_fp_txdata *txdata;
  6312. struct bnx2x_queue_state_params q_params = {0};
  6313. int rc, tx_index;
  6314. DP(BNX2X_MSG_SP, "stopping queue %d cid %d\n", index, fp->cid);
  6315. q_params.q_obj = &fp->q_obj;
  6316. /* We want to wait for completion in this context */
  6317. __set_bit(RAMROD_COMP_WAIT, &q_params.ramrod_flags);
  6318. /* close tx-only connections */
  6319. for (tx_index = FIRST_TX_ONLY_COS_INDEX;
  6320. tx_index < fp->max_cos;
  6321. tx_index++){
  6322. /* ascertain this is a normal queue*/
  6323. txdata = &fp->txdata[tx_index];
  6324. DP(BNX2X_MSG_SP, "stopping tx-only queue %d\n",
  6325. txdata->txq_index);
  6326. /* send halt terminate on tx-only connection */
  6327. q_params.cmd = BNX2X_Q_CMD_TERMINATE;
  6328. memset(&q_params.params.terminate, 0,
  6329. sizeof(q_params.params.terminate));
  6330. q_params.params.terminate.cid_index = tx_index;
  6331. rc = bnx2x_queue_state_change(bp, &q_params);
  6332. if (rc)
  6333. return rc;
  6334. /* send halt terminate on tx-only connection */
  6335. q_params.cmd = BNX2X_Q_CMD_CFC_DEL;
  6336. memset(&q_params.params.cfc_del, 0,
  6337. sizeof(q_params.params.cfc_del));
  6338. q_params.params.cfc_del.cid_index = tx_index;
  6339. rc = bnx2x_queue_state_change(bp, &q_params);
  6340. if (rc)
  6341. return rc;
  6342. }
  6343. /* Stop the primary connection: */
  6344. /* ...halt the connection */
  6345. q_params.cmd = BNX2X_Q_CMD_HALT;
  6346. rc = bnx2x_queue_state_change(bp, &q_params);
  6347. if (rc)
  6348. return rc;
  6349. /* ...terminate the connection */
  6350. q_params.cmd = BNX2X_Q_CMD_TERMINATE;
  6351. memset(&q_params.params.terminate, 0,
  6352. sizeof(q_params.params.terminate));
  6353. q_params.params.terminate.cid_index = FIRST_TX_COS_INDEX;
  6354. rc = bnx2x_queue_state_change(bp, &q_params);
  6355. if (rc)
  6356. return rc;
  6357. /* ...delete cfc entry */
  6358. q_params.cmd = BNX2X_Q_CMD_CFC_DEL;
  6359. memset(&q_params.params.cfc_del, 0,
  6360. sizeof(q_params.params.cfc_del));
  6361. q_params.params.cfc_del.cid_index = FIRST_TX_COS_INDEX;
  6362. return bnx2x_queue_state_change(bp, &q_params);
  6363. }
  6364. static void bnx2x_reset_func(struct bnx2x *bp)
  6365. {
  6366. int port = BP_PORT(bp);
  6367. int func = BP_FUNC(bp);
  6368. int i;
  6369. /* Disable the function in the FW */
  6370. REG_WR8(bp, BAR_XSTRORM_INTMEM + XSTORM_FUNC_EN_OFFSET(func), 0);
  6371. REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_FUNC_EN_OFFSET(func), 0);
  6372. REG_WR8(bp, BAR_TSTRORM_INTMEM + TSTORM_FUNC_EN_OFFSET(func), 0);
  6373. REG_WR8(bp, BAR_USTRORM_INTMEM + USTORM_FUNC_EN_OFFSET(func), 0);
  6374. /* FP SBs */
  6375. for_each_eth_queue(bp, i) {
  6376. struct bnx2x_fastpath *fp = &bp->fp[i];
  6377. REG_WR8(bp, BAR_CSTRORM_INTMEM +
  6378. CSTORM_STATUS_BLOCK_DATA_STATE_OFFSET(fp->fw_sb_id),
  6379. SB_DISABLED);
  6380. }
  6381. #ifdef BCM_CNIC
  6382. /* CNIC SB */
  6383. REG_WR8(bp, BAR_CSTRORM_INTMEM +
  6384. CSTORM_STATUS_BLOCK_DATA_STATE_OFFSET(bnx2x_cnic_fw_sb_id(bp)),
  6385. SB_DISABLED);
  6386. #endif
  6387. /* SP SB */
  6388. REG_WR8(bp, BAR_CSTRORM_INTMEM +
  6389. CSTORM_SP_STATUS_BLOCK_DATA_STATE_OFFSET(func),
  6390. SB_DISABLED);
  6391. for (i = 0; i < XSTORM_SPQ_DATA_SIZE / 4; i++)
  6392. REG_WR(bp, BAR_XSTRORM_INTMEM + XSTORM_SPQ_DATA_OFFSET(func),
  6393. 0);
  6394. /* Configure IGU */
  6395. if (bp->common.int_block == INT_BLOCK_HC) {
  6396. REG_WR(bp, HC_REG_LEADING_EDGE_0 + port*8, 0);
  6397. REG_WR(bp, HC_REG_TRAILING_EDGE_0 + port*8, 0);
  6398. } else {
  6399. REG_WR(bp, IGU_REG_LEADING_EDGE_LATCH, 0);
  6400. REG_WR(bp, IGU_REG_TRAILING_EDGE_LATCH, 0);
  6401. }
  6402. #ifdef BCM_CNIC
  6403. /* Disable Timer scan */
  6404. REG_WR(bp, TM_REG_EN_LINEAR0_TIMER + port*4, 0);
  6405. /*
  6406. * Wait for at least 10ms and up to 2 second for the timers scan to
  6407. * complete
  6408. */
  6409. for (i = 0; i < 200; i++) {
  6410. msleep(10);
  6411. if (!REG_RD(bp, TM_REG_LIN0_SCAN_ON + port*4))
  6412. break;
  6413. }
  6414. #endif
  6415. /* Clear ILT */
  6416. bnx2x_clear_func_ilt(bp, func);
  6417. /* Timers workaround bug for E2: if this is vnic-3,
  6418. * we need to set the entire ilt range for this timers.
  6419. */
  6420. if (!CHIP_IS_E1x(bp) && BP_VN(bp) == 3) {
  6421. struct ilt_client_info ilt_cli;
  6422. /* use dummy TM client */
  6423. memset(&ilt_cli, 0, sizeof(struct ilt_client_info));
  6424. ilt_cli.start = 0;
  6425. ilt_cli.end = ILT_NUM_PAGE_ENTRIES - 1;
  6426. ilt_cli.client_num = ILT_CLIENT_TM;
  6427. bnx2x_ilt_boundry_init_op(bp, &ilt_cli, 0, INITOP_CLEAR);
  6428. }
  6429. /* this assumes that reset_port() called before reset_func()*/
  6430. if (!CHIP_IS_E1x(bp))
  6431. bnx2x_pf_disable(bp);
  6432. bp->dmae_ready = 0;
  6433. }
  6434. static void bnx2x_reset_port(struct bnx2x *bp)
  6435. {
  6436. int port = BP_PORT(bp);
  6437. u32 val;
  6438. /* Reset physical Link */
  6439. bnx2x__link_reset(bp);
  6440. REG_WR(bp, NIG_REG_MASK_INTERRUPT_PORT0 + port*4, 0);
  6441. /* Do not rcv packets to BRB */
  6442. REG_WR(bp, NIG_REG_LLH0_BRB1_DRV_MASK + port*4, 0x0);
  6443. /* Do not direct rcv packets that are not for MCP to the BRB */
  6444. REG_WR(bp, (port ? NIG_REG_LLH1_BRB1_NOT_MCP :
  6445. NIG_REG_LLH0_BRB1_NOT_MCP), 0x0);
  6446. /* Configure AEU */
  6447. REG_WR(bp, MISC_REG_AEU_MASK_ATTN_FUNC_0 + port*4, 0);
  6448. msleep(100);
  6449. /* Check for BRB port occupancy */
  6450. val = REG_RD(bp, BRB1_REG_PORT_NUM_OCC_BLOCKS_0 + port*4);
  6451. if (val)
  6452. DP(NETIF_MSG_IFDOWN,
  6453. "BRB1 is not empty %d blocks are occupied\n", val);
  6454. /* TODO: Close Doorbell port? */
  6455. }
  6456. static inline int bnx2x_reset_hw(struct bnx2x *bp, u32 load_code)
  6457. {
  6458. struct bnx2x_func_state_params func_params = {0};
  6459. /* Prepare parameters for function state transitions */
  6460. __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags);
  6461. func_params.f_obj = &bp->func_obj;
  6462. func_params.cmd = BNX2X_F_CMD_HW_RESET;
  6463. func_params.params.hw_init.load_phase = load_code;
  6464. return bnx2x_func_state_change(bp, &func_params);
  6465. }
  6466. static inline int bnx2x_func_stop(struct bnx2x *bp)
  6467. {
  6468. struct bnx2x_func_state_params func_params = {0};
  6469. int rc;
  6470. /* Prepare parameters for function state transitions */
  6471. __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags);
  6472. func_params.f_obj = &bp->func_obj;
  6473. func_params.cmd = BNX2X_F_CMD_STOP;
  6474. /*
  6475. * Try to stop the function the 'good way'. If fails (in case
  6476. * of a parity error during bnx2x_chip_cleanup()) and we are
  6477. * not in a debug mode, perform a state transaction in order to
  6478. * enable further HW_RESET transaction.
  6479. */
  6480. rc = bnx2x_func_state_change(bp, &func_params);
  6481. if (rc) {
  6482. #ifdef BNX2X_STOP_ON_ERROR
  6483. return rc;
  6484. #else
  6485. BNX2X_ERR("FUNC_STOP ramrod failed. Running a dry "
  6486. "transaction\n");
  6487. __set_bit(RAMROD_DRV_CLR_ONLY, &func_params.ramrod_flags);
  6488. return bnx2x_func_state_change(bp, &func_params);
  6489. #endif
  6490. }
  6491. return 0;
  6492. }
  6493. /**
  6494. * bnx2x_send_unload_req - request unload mode from the MCP.
  6495. *
  6496. * @bp: driver handle
  6497. * @unload_mode: requested function's unload mode
  6498. *
  6499. * Return unload mode returned by the MCP: COMMON, PORT or FUNC.
  6500. */
  6501. u32 bnx2x_send_unload_req(struct bnx2x *bp, int unload_mode)
  6502. {
  6503. u32 reset_code = 0;
  6504. int port = BP_PORT(bp);
  6505. /* Select the UNLOAD request mode */
  6506. if (unload_mode == UNLOAD_NORMAL)
  6507. reset_code = DRV_MSG_CODE_UNLOAD_REQ_WOL_DIS;
  6508. else if (bp->flags & NO_WOL_FLAG)
  6509. reset_code = DRV_MSG_CODE_UNLOAD_REQ_WOL_MCP;
  6510. else if (bp->wol) {
  6511. u32 emac_base = port ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
  6512. u8 *mac_addr = bp->dev->dev_addr;
  6513. u32 val;
  6514. u16 pmc;
  6515. /* The mac address is written to entries 1-4 to
  6516. * preserve entry 0 which is used by the PMF
  6517. */
  6518. u8 entry = (BP_VN(bp) + 1)*8;
  6519. val = (mac_addr[0] << 8) | mac_addr[1];
  6520. EMAC_WR(bp, EMAC_REG_EMAC_MAC_MATCH + entry, val);
  6521. val = (mac_addr[2] << 24) | (mac_addr[3] << 16) |
  6522. (mac_addr[4] << 8) | mac_addr[5];
  6523. EMAC_WR(bp, EMAC_REG_EMAC_MAC_MATCH + entry + 4, val);
  6524. /* Enable the PME and clear the status */
  6525. pci_read_config_word(bp->pdev, bp->pm_cap + PCI_PM_CTRL, &pmc);
  6526. pmc |= PCI_PM_CTRL_PME_ENABLE | PCI_PM_CTRL_PME_STATUS;
  6527. pci_write_config_word(bp->pdev, bp->pm_cap + PCI_PM_CTRL, pmc);
  6528. reset_code = DRV_MSG_CODE_UNLOAD_REQ_WOL_EN;
  6529. } else
  6530. reset_code = DRV_MSG_CODE_UNLOAD_REQ_WOL_DIS;
  6531. /* Send the request to the MCP */
  6532. if (!BP_NOMCP(bp))
  6533. reset_code = bnx2x_fw_command(bp, reset_code, 0);
  6534. else {
  6535. int path = BP_PATH(bp);
  6536. DP(NETIF_MSG_IFDOWN, "NO MCP - load counts[%d] "
  6537. "%d, %d, %d\n",
  6538. path, load_count[path][0], load_count[path][1],
  6539. load_count[path][2]);
  6540. load_count[path][0]--;
  6541. load_count[path][1 + port]--;
  6542. DP(NETIF_MSG_IFDOWN, "NO MCP - new load counts[%d] "
  6543. "%d, %d, %d\n",
  6544. path, load_count[path][0], load_count[path][1],
  6545. load_count[path][2]);
  6546. if (load_count[path][0] == 0)
  6547. reset_code = FW_MSG_CODE_DRV_UNLOAD_COMMON;
  6548. else if (load_count[path][1 + port] == 0)
  6549. reset_code = FW_MSG_CODE_DRV_UNLOAD_PORT;
  6550. else
  6551. reset_code = FW_MSG_CODE_DRV_UNLOAD_FUNCTION;
  6552. }
  6553. return reset_code;
  6554. }
  6555. /**
  6556. * bnx2x_send_unload_done - send UNLOAD_DONE command to the MCP.
  6557. *
  6558. * @bp: driver handle
  6559. */
  6560. void bnx2x_send_unload_done(struct bnx2x *bp)
  6561. {
  6562. /* Report UNLOAD_DONE to MCP */
  6563. if (!BP_NOMCP(bp))
  6564. bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_DONE, 0);
  6565. }
  6566. static inline int bnx2x_func_wait_started(struct bnx2x *bp)
  6567. {
  6568. int tout = 50;
  6569. int msix = (bp->flags & USING_MSIX_FLAG) ? 1 : 0;
  6570. if (!bp->port.pmf)
  6571. return 0;
  6572. /*
  6573. * (assumption: No Attention from MCP at this stage)
  6574. * PMF probably in the middle of TXdisable/enable transaction
  6575. * 1. Sync IRS for default SB
  6576. * 2. Sync SP queue - this guarantes us that attention handling started
  6577. * 3. Wait, that TXdisable/enable transaction completes
  6578. *
  6579. * 1+2 guranty that if DCBx attention was scheduled it already changed
  6580. * pending bit of transaction from STARTED-->TX_STOPPED, if we alredy
  6581. * received complettion for the transaction the state is TX_STOPPED.
  6582. * State will return to STARTED after completion of TX_STOPPED-->STARTED
  6583. * transaction.
  6584. */
  6585. /* make sure default SB ISR is done */
  6586. if (msix)
  6587. synchronize_irq(bp->msix_table[0].vector);
  6588. else
  6589. synchronize_irq(bp->pdev->irq);
  6590. flush_workqueue(bnx2x_wq);
  6591. while (bnx2x_func_get_state(bp, &bp->func_obj) !=
  6592. BNX2X_F_STATE_STARTED && tout--)
  6593. msleep(20);
  6594. if (bnx2x_func_get_state(bp, &bp->func_obj) !=
  6595. BNX2X_F_STATE_STARTED) {
  6596. #ifdef BNX2X_STOP_ON_ERROR
  6597. return -EBUSY;
  6598. #else
  6599. /*
  6600. * Failed to complete the transaction in a "good way"
  6601. * Force both transactions with CLR bit
  6602. */
  6603. struct bnx2x_func_state_params func_params = {0};
  6604. DP(BNX2X_MSG_SP, "Hmmm... unexpected function state! "
  6605. "Forcing STARTED-->TX_ST0PPED-->STARTED\n");
  6606. func_params.f_obj = &bp->func_obj;
  6607. __set_bit(RAMROD_DRV_CLR_ONLY,
  6608. &func_params.ramrod_flags);
  6609. /* STARTED-->TX_ST0PPED */
  6610. func_params.cmd = BNX2X_F_CMD_TX_STOP;
  6611. bnx2x_func_state_change(bp, &func_params);
  6612. /* TX_ST0PPED-->STARTED */
  6613. func_params.cmd = BNX2X_F_CMD_TX_START;
  6614. return bnx2x_func_state_change(bp, &func_params);
  6615. #endif
  6616. }
  6617. return 0;
  6618. }
  6619. void bnx2x_chip_cleanup(struct bnx2x *bp, int unload_mode)
  6620. {
  6621. int port = BP_PORT(bp);
  6622. int i, rc = 0;
  6623. u8 cos;
  6624. struct bnx2x_mcast_ramrod_params rparam = {0};
  6625. u32 reset_code;
  6626. /* Wait until tx fastpath tasks complete */
  6627. for_each_tx_queue(bp, i) {
  6628. struct bnx2x_fastpath *fp = &bp->fp[i];
  6629. for_each_cos_in_tx_queue(fp, cos)
  6630. rc = bnx2x_clean_tx_queue(bp, &fp->txdata[cos]);
  6631. #ifdef BNX2X_STOP_ON_ERROR
  6632. if (rc)
  6633. return;
  6634. #endif
  6635. }
  6636. /* Give HW time to discard old tx messages */
  6637. usleep_range(1000, 1000);
  6638. /* Clean all ETH MACs */
  6639. rc = bnx2x_del_all_macs(bp, &bp->fp[0].mac_obj, BNX2X_ETH_MAC, false);
  6640. if (rc < 0)
  6641. BNX2X_ERR("Failed to delete all ETH macs: %d\n", rc);
  6642. /* Clean up UC list */
  6643. rc = bnx2x_del_all_macs(bp, &bp->fp[0].mac_obj, BNX2X_UC_LIST_MAC,
  6644. true);
  6645. if (rc < 0)
  6646. BNX2X_ERR("Failed to schedule DEL commands for UC MACs list: "
  6647. "%d\n", rc);
  6648. /* Disable LLH */
  6649. if (!CHIP_IS_E1(bp))
  6650. REG_WR(bp, NIG_REG_LLH0_FUNC_EN + port*8, 0);
  6651. /* Set "drop all" (stop Rx).
  6652. * We need to take a netif_addr_lock() here in order to prevent
  6653. * a race between the completion code and this code.
  6654. */
  6655. netif_addr_lock_bh(bp->dev);
  6656. /* Schedule the rx_mode command */
  6657. if (test_bit(BNX2X_FILTER_RX_MODE_PENDING, &bp->sp_state))
  6658. set_bit(BNX2X_FILTER_RX_MODE_SCHED, &bp->sp_state);
  6659. else
  6660. bnx2x_set_storm_rx_mode(bp);
  6661. /* Cleanup multicast configuration */
  6662. rparam.mcast_obj = &bp->mcast_obj;
  6663. rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_DEL);
  6664. if (rc < 0)
  6665. BNX2X_ERR("Failed to send DEL multicast command: %d\n", rc);
  6666. netif_addr_unlock_bh(bp->dev);
  6667. /*
  6668. * Send the UNLOAD_REQUEST to the MCP. This will return if
  6669. * this function should perform FUNC, PORT or COMMON HW
  6670. * reset.
  6671. */
  6672. reset_code = bnx2x_send_unload_req(bp, unload_mode);
  6673. /*
  6674. * (assumption: No Attention from MCP at this stage)
  6675. * PMF probably in the middle of TXdisable/enable transaction
  6676. */
  6677. rc = bnx2x_func_wait_started(bp);
  6678. if (rc) {
  6679. BNX2X_ERR("bnx2x_func_wait_started failed\n");
  6680. #ifdef BNX2X_STOP_ON_ERROR
  6681. return;
  6682. #endif
  6683. }
  6684. /* Close multi and leading connections
  6685. * Completions for ramrods are collected in a synchronous way
  6686. */
  6687. for_each_queue(bp, i)
  6688. if (bnx2x_stop_queue(bp, i))
  6689. #ifdef BNX2X_STOP_ON_ERROR
  6690. return;
  6691. #else
  6692. goto unload_error;
  6693. #endif
  6694. /* If SP settings didn't get completed so far - something
  6695. * very wrong has happen.
  6696. */
  6697. if (!bnx2x_wait_sp_comp(bp, ~0x0UL))
  6698. BNX2X_ERR("Hmmm... Common slow path ramrods got stuck!\n");
  6699. #ifndef BNX2X_STOP_ON_ERROR
  6700. unload_error:
  6701. #endif
  6702. rc = bnx2x_func_stop(bp);
  6703. if (rc) {
  6704. BNX2X_ERR("Function stop failed!\n");
  6705. #ifdef BNX2X_STOP_ON_ERROR
  6706. return;
  6707. #endif
  6708. }
  6709. /* Disable HW interrupts, NAPI */
  6710. bnx2x_netif_stop(bp, 1);
  6711. /* Release IRQs */
  6712. bnx2x_free_irq(bp);
  6713. /* Reset the chip */
  6714. rc = bnx2x_reset_hw(bp, reset_code);
  6715. if (rc)
  6716. BNX2X_ERR("HW_RESET failed\n");
  6717. /* Report UNLOAD_DONE to MCP */
  6718. bnx2x_send_unload_done(bp);
  6719. }
  6720. void bnx2x_disable_close_the_gate(struct bnx2x *bp)
  6721. {
  6722. u32 val;
  6723. DP(NETIF_MSG_HW, "Disabling \"close the gates\"\n");
  6724. if (CHIP_IS_E1(bp)) {
  6725. int port = BP_PORT(bp);
  6726. u32 addr = port ? MISC_REG_AEU_MASK_ATTN_FUNC_1 :
  6727. MISC_REG_AEU_MASK_ATTN_FUNC_0;
  6728. val = REG_RD(bp, addr);
  6729. val &= ~(0x300);
  6730. REG_WR(bp, addr, val);
  6731. } else {
  6732. val = REG_RD(bp, MISC_REG_AEU_GENERAL_MASK);
  6733. val &= ~(MISC_AEU_GENERAL_MASK_REG_AEU_PXP_CLOSE_MASK |
  6734. MISC_AEU_GENERAL_MASK_REG_AEU_NIG_CLOSE_MASK);
  6735. REG_WR(bp, MISC_REG_AEU_GENERAL_MASK, val);
  6736. }
  6737. }
  6738. /* Close gates #2, #3 and #4: */
  6739. static void bnx2x_set_234_gates(struct bnx2x *bp, bool close)
  6740. {
  6741. u32 val;
  6742. /* Gates #2 and #4a are closed/opened for "not E1" only */
  6743. if (!CHIP_IS_E1(bp)) {
  6744. /* #4 */
  6745. REG_WR(bp, PXP_REG_HST_DISCARD_DOORBELLS, !!close);
  6746. /* #2 */
  6747. REG_WR(bp, PXP_REG_HST_DISCARD_INTERNAL_WRITES, !!close);
  6748. }
  6749. /* #3 */
  6750. if (CHIP_IS_E1x(bp)) {
  6751. /* Prevent interrupts from HC on both ports */
  6752. val = REG_RD(bp, HC_REG_CONFIG_1);
  6753. REG_WR(bp, HC_REG_CONFIG_1,
  6754. (!close) ? (val | HC_CONFIG_1_REG_BLOCK_DISABLE_1) :
  6755. (val & ~(u32)HC_CONFIG_1_REG_BLOCK_DISABLE_1));
  6756. val = REG_RD(bp, HC_REG_CONFIG_0);
  6757. REG_WR(bp, HC_REG_CONFIG_0,
  6758. (!close) ? (val | HC_CONFIG_0_REG_BLOCK_DISABLE_0) :
  6759. (val & ~(u32)HC_CONFIG_0_REG_BLOCK_DISABLE_0));
  6760. } else {
  6761. /* Prevent incomming interrupts in IGU */
  6762. val = REG_RD(bp, IGU_REG_BLOCK_CONFIGURATION);
  6763. REG_WR(bp, IGU_REG_BLOCK_CONFIGURATION,
  6764. (!close) ?
  6765. (val | IGU_BLOCK_CONFIGURATION_REG_BLOCK_ENABLE) :
  6766. (val & ~(u32)IGU_BLOCK_CONFIGURATION_REG_BLOCK_ENABLE));
  6767. }
  6768. DP(NETIF_MSG_HW, "%s gates #2, #3 and #4\n",
  6769. close ? "closing" : "opening");
  6770. mmiowb();
  6771. }
  6772. #define SHARED_MF_CLP_MAGIC 0x80000000 /* `magic' bit */
  6773. static void bnx2x_clp_reset_prep(struct bnx2x *bp, u32 *magic_val)
  6774. {
  6775. /* Do some magic... */
  6776. u32 val = MF_CFG_RD(bp, shared_mf_config.clp_mb);
  6777. *magic_val = val & SHARED_MF_CLP_MAGIC;
  6778. MF_CFG_WR(bp, shared_mf_config.clp_mb, val | SHARED_MF_CLP_MAGIC);
  6779. }
  6780. /**
  6781. * bnx2x_clp_reset_done - restore the value of the `magic' bit.
  6782. *
  6783. * @bp: driver handle
  6784. * @magic_val: old value of the `magic' bit.
  6785. */
  6786. static void bnx2x_clp_reset_done(struct bnx2x *bp, u32 magic_val)
  6787. {
  6788. /* Restore the `magic' bit value... */
  6789. u32 val = MF_CFG_RD(bp, shared_mf_config.clp_mb);
  6790. MF_CFG_WR(bp, shared_mf_config.clp_mb,
  6791. (val & (~SHARED_MF_CLP_MAGIC)) | magic_val);
  6792. }
  6793. /**
  6794. * bnx2x_reset_mcp_prep - prepare for MCP reset.
  6795. *
  6796. * @bp: driver handle
  6797. * @magic_val: old value of 'magic' bit.
  6798. *
  6799. * Takes care of CLP configurations.
  6800. */
  6801. static void bnx2x_reset_mcp_prep(struct bnx2x *bp, u32 *magic_val)
  6802. {
  6803. u32 shmem;
  6804. u32 validity_offset;
  6805. DP(NETIF_MSG_HW, "Starting\n");
  6806. /* Set `magic' bit in order to save MF config */
  6807. if (!CHIP_IS_E1(bp))
  6808. bnx2x_clp_reset_prep(bp, magic_val);
  6809. /* Get shmem offset */
  6810. shmem = REG_RD(bp, MISC_REG_SHARED_MEM_ADDR);
  6811. validity_offset = offsetof(struct shmem_region, validity_map[0]);
  6812. /* Clear validity map flags */
  6813. if (shmem > 0)
  6814. REG_WR(bp, shmem + validity_offset, 0);
  6815. }
  6816. #define MCP_TIMEOUT 5000 /* 5 seconds (in ms) */
  6817. #define MCP_ONE_TIMEOUT 100 /* 100 ms */
  6818. /**
  6819. * bnx2x_mcp_wait_one - wait for MCP_ONE_TIMEOUT
  6820. *
  6821. * @bp: driver handle
  6822. */
  6823. static inline void bnx2x_mcp_wait_one(struct bnx2x *bp)
  6824. {
  6825. /* special handling for emulation and FPGA,
  6826. wait 10 times longer */
  6827. if (CHIP_REV_IS_SLOW(bp))
  6828. msleep(MCP_ONE_TIMEOUT*10);
  6829. else
  6830. msleep(MCP_ONE_TIMEOUT);
  6831. }
  6832. /*
  6833. * initializes bp->common.shmem_base and waits for validity signature to appear
  6834. */
  6835. static int bnx2x_init_shmem(struct bnx2x *bp)
  6836. {
  6837. int cnt = 0;
  6838. u32 val = 0;
  6839. do {
  6840. bp->common.shmem_base = REG_RD(bp, MISC_REG_SHARED_MEM_ADDR);
  6841. if (bp->common.shmem_base) {
  6842. val = SHMEM_RD(bp, validity_map[BP_PORT(bp)]);
  6843. if (val & SHR_MEM_VALIDITY_MB)
  6844. return 0;
  6845. }
  6846. bnx2x_mcp_wait_one(bp);
  6847. } while (cnt++ < (MCP_TIMEOUT / MCP_ONE_TIMEOUT));
  6848. BNX2X_ERR("BAD MCP validity signature\n");
  6849. return -ENODEV;
  6850. }
  6851. static int bnx2x_reset_mcp_comp(struct bnx2x *bp, u32 magic_val)
  6852. {
  6853. int rc = bnx2x_init_shmem(bp);
  6854. /* Restore the `magic' bit value */
  6855. if (!CHIP_IS_E1(bp))
  6856. bnx2x_clp_reset_done(bp, magic_val);
  6857. return rc;
  6858. }
  6859. static void bnx2x_pxp_prep(struct bnx2x *bp)
  6860. {
  6861. if (!CHIP_IS_E1(bp)) {
  6862. REG_WR(bp, PXP2_REG_RD_START_INIT, 0);
  6863. REG_WR(bp, PXP2_REG_RQ_RBC_DONE, 0);
  6864. mmiowb();
  6865. }
  6866. }
  6867. /*
  6868. * Reset the whole chip except for:
  6869. * - PCIE core
  6870. * - PCI Glue, PSWHST, PXP/PXP2 RF (all controlled by
  6871. * one reset bit)
  6872. * - IGU
  6873. * - MISC (including AEU)
  6874. * - GRC
  6875. * - RBCN, RBCP
  6876. */
  6877. static void bnx2x_process_kill_chip_reset(struct bnx2x *bp, bool global)
  6878. {
  6879. u32 not_reset_mask1, reset_mask1, not_reset_mask2, reset_mask2;
  6880. u32 global_bits2, stay_reset2;
  6881. /*
  6882. * Bits that have to be set in reset_mask2 if we want to reset 'global'
  6883. * (per chip) blocks.
  6884. */
  6885. global_bits2 =
  6886. MISC_REGISTERS_RESET_REG_2_RST_MCP_N_RESET_CMN_CPU |
  6887. MISC_REGISTERS_RESET_REG_2_RST_MCP_N_RESET_CMN_CORE;
  6888. /* Don't reset the following blocks */
  6889. not_reset_mask1 =
  6890. MISC_REGISTERS_RESET_REG_1_RST_HC |
  6891. MISC_REGISTERS_RESET_REG_1_RST_PXPV |
  6892. MISC_REGISTERS_RESET_REG_1_RST_PXP;
  6893. not_reset_mask2 =
  6894. MISC_REGISTERS_RESET_REG_2_RST_PCI_MDIO |
  6895. MISC_REGISTERS_RESET_REG_2_RST_EMAC0_HARD_CORE |
  6896. MISC_REGISTERS_RESET_REG_2_RST_EMAC1_HARD_CORE |
  6897. MISC_REGISTERS_RESET_REG_2_RST_MISC_CORE |
  6898. MISC_REGISTERS_RESET_REG_2_RST_RBCN |
  6899. MISC_REGISTERS_RESET_REG_2_RST_GRC |
  6900. MISC_REGISTERS_RESET_REG_2_RST_MCP_N_RESET_REG_HARD_CORE |
  6901. MISC_REGISTERS_RESET_REG_2_RST_MCP_N_HARD_CORE_RST_B |
  6902. MISC_REGISTERS_RESET_REG_2_RST_ATC |
  6903. MISC_REGISTERS_RESET_REG_2_PGLC;
  6904. /*
  6905. * Keep the following blocks in reset:
  6906. * - all xxMACs are handled by the bnx2x_link code.
  6907. */
  6908. stay_reset2 =
  6909. MISC_REGISTERS_RESET_REG_2_RST_BMAC0 |
  6910. MISC_REGISTERS_RESET_REG_2_RST_BMAC1 |
  6911. MISC_REGISTERS_RESET_REG_2_RST_EMAC0 |
  6912. MISC_REGISTERS_RESET_REG_2_RST_EMAC1 |
  6913. MISC_REGISTERS_RESET_REG_2_UMAC0 |
  6914. MISC_REGISTERS_RESET_REG_2_UMAC1 |
  6915. MISC_REGISTERS_RESET_REG_2_XMAC |
  6916. MISC_REGISTERS_RESET_REG_2_XMAC_SOFT;
  6917. /* Full reset masks according to the chip */
  6918. reset_mask1 = 0xffffffff;
  6919. if (CHIP_IS_E1(bp))
  6920. reset_mask2 = 0xffff;
  6921. else if (CHIP_IS_E1H(bp))
  6922. reset_mask2 = 0x1ffff;
  6923. else if (CHIP_IS_E2(bp))
  6924. reset_mask2 = 0xfffff;
  6925. else /* CHIP_IS_E3 */
  6926. reset_mask2 = 0x3ffffff;
  6927. /* Don't reset global blocks unless we need to */
  6928. if (!global)
  6929. reset_mask2 &= ~global_bits2;
  6930. /*
  6931. * In case of attention in the QM, we need to reset PXP
  6932. * (MISC_REGISTERS_RESET_REG_2_RST_PXP_RQ_RD_WR) before QM
  6933. * because otherwise QM reset would release 'close the gates' shortly
  6934. * before resetting the PXP, then the PSWRQ would send a write
  6935. * request to PGLUE. Then when PXP is reset, PGLUE would try to
  6936. * read the payload data from PSWWR, but PSWWR would not
  6937. * respond. The write queue in PGLUE would stuck, dmae commands
  6938. * would not return. Therefore it's important to reset the second
  6939. * reset register (containing the
  6940. * MISC_REGISTERS_RESET_REG_2_RST_PXP_RQ_RD_WR bit) before the
  6941. * first one (containing the MISC_REGISTERS_RESET_REG_1_RST_QM
  6942. * bit).
  6943. */
  6944. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
  6945. reset_mask2 & (~not_reset_mask2));
  6946. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_CLEAR,
  6947. reset_mask1 & (~not_reset_mask1));
  6948. barrier();
  6949. mmiowb();
  6950. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
  6951. reset_mask2 & (~stay_reset2));
  6952. barrier();
  6953. mmiowb();
  6954. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_SET, reset_mask1);
  6955. mmiowb();
  6956. }
  6957. /**
  6958. * bnx2x_er_poll_igu_vq - poll for pending writes bit.
  6959. * It should get cleared in no more than 1s.
  6960. *
  6961. * @bp: driver handle
  6962. *
  6963. * It should get cleared in no more than 1s. Returns 0 if
  6964. * pending writes bit gets cleared.
  6965. */
  6966. static int bnx2x_er_poll_igu_vq(struct bnx2x *bp)
  6967. {
  6968. u32 cnt = 1000;
  6969. u32 pend_bits = 0;
  6970. do {
  6971. pend_bits = REG_RD(bp, IGU_REG_PENDING_BITS_STATUS);
  6972. if (pend_bits == 0)
  6973. break;
  6974. usleep_range(1000, 1000);
  6975. } while (cnt-- > 0);
  6976. if (cnt <= 0) {
  6977. BNX2X_ERR("Still pending IGU requests pend_bits=%x!\n",
  6978. pend_bits);
  6979. return -EBUSY;
  6980. }
  6981. return 0;
  6982. }
  6983. static int bnx2x_process_kill(struct bnx2x *bp, bool global)
  6984. {
  6985. int cnt = 1000;
  6986. u32 val = 0;
  6987. u32 sr_cnt, blk_cnt, port_is_idle_0, port_is_idle_1, pgl_exp_rom2;
  6988. /* Empty the Tetris buffer, wait for 1s */
  6989. do {
  6990. sr_cnt = REG_RD(bp, PXP2_REG_RD_SR_CNT);
  6991. blk_cnt = REG_RD(bp, PXP2_REG_RD_BLK_CNT);
  6992. port_is_idle_0 = REG_RD(bp, PXP2_REG_RD_PORT_IS_IDLE_0);
  6993. port_is_idle_1 = REG_RD(bp, PXP2_REG_RD_PORT_IS_IDLE_1);
  6994. pgl_exp_rom2 = REG_RD(bp, PXP2_REG_PGL_EXP_ROM2);
  6995. if ((sr_cnt == 0x7e) && (blk_cnt == 0xa0) &&
  6996. ((port_is_idle_0 & 0x1) == 0x1) &&
  6997. ((port_is_idle_1 & 0x1) == 0x1) &&
  6998. (pgl_exp_rom2 == 0xffffffff))
  6999. break;
  7000. usleep_range(1000, 1000);
  7001. } while (cnt-- > 0);
  7002. if (cnt <= 0) {
  7003. DP(NETIF_MSG_HW, "Tetris buffer didn't get empty or there"
  7004. " are still"
  7005. " outstanding read requests after 1s!\n");
  7006. DP(NETIF_MSG_HW, "sr_cnt=0x%08x, blk_cnt=0x%08x,"
  7007. " port_is_idle_0=0x%08x,"
  7008. " port_is_idle_1=0x%08x, pgl_exp_rom2=0x%08x\n",
  7009. sr_cnt, blk_cnt, port_is_idle_0, port_is_idle_1,
  7010. pgl_exp_rom2);
  7011. return -EAGAIN;
  7012. }
  7013. barrier();
  7014. /* Close gates #2, #3 and #4 */
  7015. bnx2x_set_234_gates(bp, true);
  7016. /* Poll for IGU VQs for 57712 and newer chips */
  7017. if (!CHIP_IS_E1x(bp) && bnx2x_er_poll_igu_vq(bp))
  7018. return -EAGAIN;
  7019. /* TBD: Indicate that "process kill" is in progress to MCP */
  7020. /* Clear "unprepared" bit */
  7021. REG_WR(bp, MISC_REG_UNPREPARED, 0);
  7022. barrier();
  7023. /* Make sure all is written to the chip before the reset */
  7024. mmiowb();
  7025. /* Wait for 1ms to empty GLUE and PCI-E core queues,
  7026. * PSWHST, GRC and PSWRD Tetris buffer.
  7027. */
  7028. usleep_range(1000, 1000);
  7029. /* Prepare to chip reset: */
  7030. /* MCP */
  7031. if (global)
  7032. bnx2x_reset_mcp_prep(bp, &val);
  7033. /* PXP */
  7034. bnx2x_pxp_prep(bp);
  7035. barrier();
  7036. /* reset the chip */
  7037. bnx2x_process_kill_chip_reset(bp, global);
  7038. barrier();
  7039. /* Recover after reset: */
  7040. /* MCP */
  7041. if (global && bnx2x_reset_mcp_comp(bp, val))
  7042. return -EAGAIN;
  7043. /* TBD: Add resetting the NO_MCP mode DB here */
  7044. /* PXP */
  7045. bnx2x_pxp_prep(bp);
  7046. /* Open the gates #2, #3 and #4 */
  7047. bnx2x_set_234_gates(bp, false);
  7048. /* TBD: IGU/AEU preparation bring back the AEU/IGU to a
  7049. * reset state, re-enable attentions. */
  7050. return 0;
  7051. }
  7052. int bnx2x_leader_reset(struct bnx2x *bp)
  7053. {
  7054. int rc = 0;
  7055. bool global = bnx2x_reset_is_global(bp);
  7056. u32 load_code;
  7057. /* if not going to reset MCP - load "fake" driver to reset HW while
  7058. * driver is owner of the HW
  7059. */
  7060. if (!global && !BP_NOMCP(bp)) {
  7061. load_code = bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_REQ, 0);
  7062. if (!load_code) {
  7063. BNX2X_ERR("MCP response failure, aborting\n");
  7064. rc = -EAGAIN;
  7065. goto exit_leader_reset;
  7066. }
  7067. if ((load_code != FW_MSG_CODE_DRV_LOAD_COMMON_CHIP) &&
  7068. (load_code != FW_MSG_CODE_DRV_LOAD_COMMON)) {
  7069. BNX2X_ERR("MCP unexpected resp, aborting\n");
  7070. rc = -EAGAIN;
  7071. goto exit_leader_reset2;
  7072. }
  7073. load_code = bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0);
  7074. if (!load_code) {
  7075. BNX2X_ERR("MCP response failure, aborting\n");
  7076. rc = -EAGAIN;
  7077. goto exit_leader_reset2;
  7078. }
  7079. }
  7080. /* Try to recover after the failure */
  7081. if (bnx2x_process_kill(bp, global)) {
  7082. netdev_err(bp->dev, "Something bad had happen on engine %d! "
  7083. "Aii!\n", BP_PATH(bp));
  7084. rc = -EAGAIN;
  7085. goto exit_leader_reset2;
  7086. }
  7087. /*
  7088. * Clear RESET_IN_PROGRES and RESET_GLOBAL bits and update the driver
  7089. * state.
  7090. */
  7091. bnx2x_set_reset_done(bp);
  7092. if (global)
  7093. bnx2x_clear_reset_global(bp);
  7094. exit_leader_reset2:
  7095. /* unload "fake driver" if it was loaded */
  7096. if (!global && !BP_NOMCP(bp)) {
  7097. bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_REQ_WOL_MCP, 0);
  7098. bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_DONE, 0);
  7099. }
  7100. exit_leader_reset:
  7101. bp->is_leader = 0;
  7102. bnx2x_release_leader_lock(bp);
  7103. smp_mb();
  7104. return rc;
  7105. }
  7106. static inline void bnx2x_recovery_failed(struct bnx2x *bp)
  7107. {
  7108. netdev_err(bp->dev, "Recovery has failed. Power cycle is needed.\n");
  7109. /* Disconnect this device */
  7110. netif_device_detach(bp->dev);
  7111. /*
  7112. * Block ifup for all function on this engine until "process kill"
  7113. * or power cycle.
  7114. */
  7115. bnx2x_set_reset_in_progress(bp);
  7116. /* Shut down the power */
  7117. bnx2x_set_power_state(bp, PCI_D3hot);
  7118. bp->recovery_state = BNX2X_RECOVERY_FAILED;
  7119. smp_mb();
  7120. }
  7121. /*
  7122. * Assumption: runs under rtnl lock. This together with the fact
  7123. * that it's called only from bnx2x_sp_rtnl() ensure that it
  7124. * will never be called when netif_running(bp->dev) is false.
  7125. */
  7126. static void bnx2x_parity_recover(struct bnx2x *bp)
  7127. {
  7128. bool global = false;
  7129. bool is_parity;
  7130. DP(NETIF_MSG_HW, "Handling parity\n");
  7131. while (1) {
  7132. switch (bp->recovery_state) {
  7133. case BNX2X_RECOVERY_INIT:
  7134. DP(NETIF_MSG_HW, "State is BNX2X_RECOVERY_INIT\n");
  7135. is_parity = bnx2x_chk_parity_attn(bp, &global, false);
  7136. WARN_ON(!is_parity);
  7137. /* Try to get a LEADER_LOCK HW lock */
  7138. if (bnx2x_trylock_leader_lock(bp)) {
  7139. bnx2x_set_reset_in_progress(bp);
  7140. /*
  7141. * Check if there is a global attention and if
  7142. * there was a global attention, set the global
  7143. * reset bit.
  7144. */
  7145. if (global)
  7146. bnx2x_set_reset_global(bp);
  7147. bp->is_leader = 1;
  7148. }
  7149. /* Stop the driver */
  7150. /* If interface has been removed - break */
  7151. if (bnx2x_nic_unload(bp, UNLOAD_RECOVERY))
  7152. return;
  7153. bp->recovery_state = BNX2X_RECOVERY_WAIT;
  7154. /* Ensure "is_leader", MCP command sequence and
  7155. * "recovery_state" update values are seen on other
  7156. * CPUs.
  7157. */
  7158. smp_mb();
  7159. break;
  7160. case BNX2X_RECOVERY_WAIT:
  7161. DP(NETIF_MSG_HW, "State is BNX2X_RECOVERY_WAIT\n");
  7162. if (bp->is_leader) {
  7163. int other_engine = BP_PATH(bp) ? 0 : 1;
  7164. bool other_load_status =
  7165. bnx2x_get_load_status(bp, other_engine);
  7166. bool load_status =
  7167. bnx2x_get_load_status(bp, BP_PATH(bp));
  7168. global = bnx2x_reset_is_global(bp);
  7169. /*
  7170. * In case of a parity in a global block, let
  7171. * the first leader that performs a
  7172. * leader_reset() reset the global blocks in
  7173. * order to clear global attentions. Otherwise
  7174. * the the gates will remain closed for that
  7175. * engine.
  7176. */
  7177. if (load_status ||
  7178. (global && other_load_status)) {
  7179. /* Wait until all other functions get
  7180. * down.
  7181. */
  7182. schedule_delayed_work(&bp->sp_rtnl_task,
  7183. HZ/10);
  7184. return;
  7185. } else {
  7186. /* If all other functions got down -
  7187. * try to bring the chip back to
  7188. * normal. In any case it's an exit
  7189. * point for a leader.
  7190. */
  7191. if (bnx2x_leader_reset(bp)) {
  7192. bnx2x_recovery_failed(bp);
  7193. return;
  7194. }
  7195. /* If we are here, means that the
  7196. * leader has succeeded and doesn't
  7197. * want to be a leader any more. Try
  7198. * to continue as a none-leader.
  7199. */
  7200. break;
  7201. }
  7202. } else { /* non-leader */
  7203. if (!bnx2x_reset_is_done(bp, BP_PATH(bp))) {
  7204. /* Try to get a LEADER_LOCK HW lock as
  7205. * long as a former leader may have
  7206. * been unloaded by the user or
  7207. * released a leadership by another
  7208. * reason.
  7209. */
  7210. if (bnx2x_trylock_leader_lock(bp)) {
  7211. /* I'm a leader now! Restart a
  7212. * switch case.
  7213. */
  7214. bp->is_leader = 1;
  7215. break;
  7216. }
  7217. schedule_delayed_work(&bp->sp_rtnl_task,
  7218. HZ/10);
  7219. return;
  7220. } else {
  7221. /*
  7222. * If there was a global attention, wait
  7223. * for it to be cleared.
  7224. */
  7225. if (bnx2x_reset_is_global(bp)) {
  7226. schedule_delayed_work(
  7227. &bp->sp_rtnl_task,
  7228. HZ/10);
  7229. return;
  7230. }
  7231. bp->recovery_state =
  7232. BNX2X_RECOVERY_NIC_LOADING;
  7233. if (bnx2x_nic_load(bp, LOAD_NORMAL)) {
  7234. netdev_err(bp->dev,
  7235. "Recovery failed. "
  7236. "Power cycle "
  7237. "needed\n");
  7238. /* Disconnect this device */
  7239. netif_device_detach(bp->dev);
  7240. /* Shut down the power */
  7241. bnx2x_set_power_state(
  7242. bp, PCI_D3hot);
  7243. smp_mb();
  7244. } else {
  7245. bp->recovery_state =
  7246. BNX2X_RECOVERY_DONE;
  7247. smp_mb();
  7248. }
  7249. return;
  7250. }
  7251. }
  7252. default:
  7253. return;
  7254. }
  7255. }
  7256. }
  7257. /* bnx2x_nic_unload() flushes the bnx2x_wq, thus reset task is
  7258. * scheduled on a general queue in order to prevent a dead lock.
  7259. */
  7260. static void bnx2x_sp_rtnl_task(struct work_struct *work)
  7261. {
  7262. struct bnx2x *bp = container_of(work, struct bnx2x, sp_rtnl_task.work);
  7263. rtnl_lock();
  7264. if (!netif_running(bp->dev))
  7265. goto sp_rtnl_exit;
  7266. /* if stop on error is defined no recovery flows should be executed */
  7267. #ifdef BNX2X_STOP_ON_ERROR
  7268. BNX2X_ERR("recovery flow called but STOP_ON_ERROR defined "
  7269. "so reset not done to allow debug dump,\n"
  7270. "you will need to reboot when done\n");
  7271. goto sp_rtnl_not_reset;
  7272. #endif
  7273. if (unlikely(bp->recovery_state != BNX2X_RECOVERY_DONE)) {
  7274. /*
  7275. * Clear all pending SP commands as we are going to reset the
  7276. * function anyway.
  7277. */
  7278. bp->sp_rtnl_state = 0;
  7279. smp_mb();
  7280. bnx2x_parity_recover(bp);
  7281. goto sp_rtnl_exit;
  7282. }
  7283. if (test_and_clear_bit(BNX2X_SP_RTNL_TX_TIMEOUT, &bp->sp_rtnl_state)) {
  7284. /*
  7285. * Clear all pending SP commands as we are going to reset the
  7286. * function anyway.
  7287. */
  7288. bp->sp_rtnl_state = 0;
  7289. smp_mb();
  7290. bnx2x_nic_unload(bp, UNLOAD_NORMAL);
  7291. bnx2x_nic_load(bp, LOAD_NORMAL);
  7292. goto sp_rtnl_exit;
  7293. }
  7294. #ifdef BNX2X_STOP_ON_ERROR
  7295. sp_rtnl_not_reset:
  7296. #endif
  7297. if (test_and_clear_bit(BNX2X_SP_RTNL_SETUP_TC, &bp->sp_rtnl_state))
  7298. bnx2x_setup_tc(bp->dev, bp->dcbx_port_params.ets.num_of_cos);
  7299. /*
  7300. * in case of fan failure we need to reset id if the "stop on error"
  7301. * debug flag is set, since we trying to prevent permanent overheating
  7302. * damage
  7303. */
  7304. if (test_and_clear_bit(BNX2X_SP_RTNL_FAN_FAILURE, &bp->sp_rtnl_state)) {
  7305. DP(BNX2X_MSG_SP, "fan failure detected. Unloading driver\n");
  7306. netif_device_detach(bp->dev);
  7307. bnx2x_close(bp->dev);
  7308. }
  7309. sp_rtnl_exit:
  7310. rtnl_unlock();
  7311. }
  7312. /* end of nic load/unload */
  7313. static void bnx2x_period_task(struct work_struct *work)
  7314. {
  7315. struct bnx2x *bp = container_of(work, struct bnx2x, period_task.work);
  7316. if (!netif_running(bp->dev))
  7317. goto period_task_exit;
  7318. if (CHIP_REV_IS_SLOW(bp)) {
  7319. BNX2X_ERR("period task called on emulation, ignoring\n");
  7320. goto period_task_exit;
  7321. }
  7322. bnx2x_acquire_phy_lock(bp);
  7323. /*
  7324. * The barrier is needed to ensure the ordering between the writing to
  7325. * the bp->port.pmf in the bnx2x_nic_load() or bnx2x_pmf_update() and
  7326. * the reading here.
  7327. */
  7328. smp_mb();
  7329. if (bp->port.pmf) {
  7330. bnx2x_period_func(&bp->link_params, &bp->link_vars);
  7331. /* Re-queue task in 1 sec */
  7332. queue_delayed_work(bnx2x_wq, &bp->period_task, 1*HZ);
  7333. }
  7334. bnx2x_release_phy_lock(bp);
  7335. period_task_exit:
  7336. return;
  7337. }
  7338. /*
  7339. * Init service functions
  7340. */
  7341. static u32 bnx2x_get_pretend_reg(struct bnx2x *bp)
  7342. {
  7343. u32 base = PXP2_REG_PGL_PRETEND_FUNC_F0;
  7344. u32 stride = PXP2_REG_PGL_PRETEND_FUNC_F1 - base;
  7345. return base + (BP_ABS_FUNC(bp)) * stride;
  7346. }
  7347. static void bnx2x_undi_int_disable_e1h(struct bnx2x *bp)
  7348. {
  7349. u32 reg = bnx2x_get_pretend_reg(bp);
  7350. /* Flush all outstanding writes */
  7351. mmiowb();
  7352. /* Pretend to be function 0 */
  7353. REG_WR(bp, reg, 0);
  7354. REG_RD(bp, reg); /* Flush the GRC transaction (in the chip) */
  7355. /* From now we are in the "like-E1" mode */
  7356. bnx2x_int_disable(bp);
  7357. /* Flush all outstanding writes */
  7358. mmiowb();
  7359. /* Restore the original function */
  7360. REG_WR(bp, reg, BP_ABS_FUNC(bp));
  7361. REG_RD(bp, reg);
  7362. }
  7363. static inline void bnx2x_undi_int_disable(struct bnx2x *bp)
  7364. {
  7365. if (CHIP_IS_E1(bp))
  7366. bnx2x_int_disable(bp);
  7367. else
  7368. bnx2x_undi_int_disable_e1h(bp);
  7369. }
  7370. static void __devinit bnx2x_undi_unload(struct bnx2x *bp)
  7371. {
  7372. u32 val;
  7373. /* possibly another driver is trying to reset the chip */
  7374. bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_RESET);
  7375. /* check if doorbell queue is reset */
  7376. if (REG_RD(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_SET)
  7377. & MISC_REGISTERS_RESET_REG_1_RST_DORQ) {
  7378. /*
  7379. * Check if it is the UNDI driver
  7380. * UNDI driver initializes CID offset for normal bell to 0x7
  7381. */
  7382. val = REG_RD(bp, DORQ_REG_NORM_CID_OFST);
  7383. if (val == 0x7) {
  7384. u32 reset_code = DRV_MSG_CODE_UNLOAD_REQ_WOL_DIS;
  7385. /* save our pf_num */
  7386. int orig_pf_num = bp->pf_num;
  7387. int port;
  7388. u32 swap_en, swap_val, value;
  7389. /* clear the UNDI indication */
  7390. REG_WR(bp, DORQ_REG_NORM_CID_OFST, 0);
  7391. BNX2X_DEV_INFO("UNDI is active! reset device\n");
  7392. /* try unload UNDI on port 0 */
  7393. bp->pf_num = 0;
  7394. bp->fw_seq =
  7395. (SHMEM_RD(bp, func_mb[bp->pf_num].drv_mb_header) &
  7396. DRV_MSG_SEQ_NUMBER_MASK);
  7397. reset_code = bnx2x_fw_command(bp, reset_code, 0);
  7398. /* if UNDI is loaded on the other port */
  7399. if (reset_code != FW_MSG_CODE_DRV_UNLOAD_COMMON) {
  7400. /* send "DONE" for previous unload */
  7401. bnx2x_fw_command(bp,
  7402. DRV_MSG_CODE_UNLOAD_DONE, 0);
  7403. /* unload UNDI on port 1 */
  7404. bp->pf_num = 1;
  7405. bp->fw_seq =
  7406. (SHMEM_RD(bp, func_mb[bp->pf_num].drv_mb_header) &
  7407. DRV_MSG_SEQ_NUMBER_MASK);
  7408. reset_code = DRV_MSG_CODE_UNLOAD_REQ_WOL_DIS;
  7409. bnx2x_fw_command(bp, reset_code, 0);
  7410. }
  7411. bnx2x_undi_int_disable(bp);
  7412. port = BP_PORT(bp);
  7413. /* close input traffic and wait for it */
  7414. /* Do not rcv packets to BRB */
  7415. REG_WR(bp, (port ? NIG_REG_LLH1_BRB1_DRV_MASK :
  7416. NIG_REG_LLH0_BRB1_DRV_MASK), 0x0);
  7417. /* Do not direct rcv packets that are not for MCP to
  7418. * the BRB */
  7419. REG_WR(bp, (port ? NIG_REG_LLH1_BRB1_NOT_MCP :
  7420. NIG_REG_LLH0_BRB1_NOT_MCP), 0x0);
  7421. /* clear AEU */
  7422. REG_WR(bp, (port ? MISC_REG_AEU_MASK_ATTN_FUNC_1 :
  7423. MISC_REG_AEU_MASK_ATTN_FUNC_0), 0);
  7424. msleep(10);
  7425. /* save NIG port swap info */
  7426. swap_val = REG_RD(bp, NIG_REG_PORT_SWAP);
  7427. swap_en = REG_RD(bp, NIG_REG_STRAP_OVERRIDE);
  7428. /* reset device */
  7429. REG_WR(bp,
  7430. GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_CLEAR,
  7431. 0xd3ffffff);
  7432. value = 0x1400;
  7433. if (CHIP_IS_E3(bp)) {
  7434. value |= MISC_REGISTERS_RESET_REG_2_MSTAT0;
  7435. value |= MISC_REGISTERS_RESET_REG_2_MSTAT1;
  7436. }
  7437. REG_WR(bp,
  7438. GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
  7439. value);
  7440. /* take the NIG out of reset and restore swap values */
  7441. REG_WR(bp,
  7442. GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_SET,
  7443. MISC_REGISTERS_RESET_REG_1_RST_NIG);
  7444. REG_WR(bp, NIG_REG_PORT_SWAP, swap_val);
  7445. REG_WR(bp, NIG_REG_STRAP_OVERRIDE, swap_en);
  7446. /* send unload done to the MCP */
  7447. bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_DONE, 0);
  7448. /* restore our func and fw_seq */
  7449. bp->pf_num = orig_pf_num;
  7450. }
  7451. }
  7452. /* now it's safe to release the lock */
  7453. bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_RESET);
  7454. }
  7455. static void __devinit bnx2x_get_common_hwinfo(struct bnx2x *bp)
  7456. {
  7457. u32 val, val2, val3, val4, id, boot_mode;
  7458. u16 pmc;
  7459. /* Get the chip revision id and number. */
  7460. /* chip num:16-31, rev:12-15, metal:4-11, bond_id:0-3 */
  7461. val = REG_RD(bp, MISC_REG_CHIP_NUM);
  7462. id = ((val & 0xffff) << 16);
  7463. val = REG_RD(bp, MISC_REG_CHIP_REV);
  7464. id |= ((val & 0xf) << 12);
  7465. val = REG_RD(bp, MISC_REG_CHIP_METAL);
  7466. id |= ((val & 0xff) << 4);
  7467. val = REG_RD(bp, MISC_REG_BOND_ID);
  7468. id |= (val & 0xf);
  7469. bp->common.chip_id = id;
  7470. /* Set doorbell size */
  7471. bp->db_size = (1 << BNX2X_DB_SHIFT);
  7472. if (!CHIP_IS_E1x(bp)) {
  7473. val = REG_RD(bp, MISC_REG_PORT4MODE_EN_OVWR);
  7474. if ((val & 1) == 0)
  7475. val = REG_RD(bp, MISC_REG_PORT4MODE_EN);
  7476. else
  7477. val = (val >> 1) & 1;
  7478. BNX2X_DEV_INFO("chip is in %s\n", val ? "4_PORT_MODE" :
  7479. "2_PORT_MODE");
  7480. bp->common.chip_port_mode = val ? CHIP_4_PORT_MODE :
  7481. CHIP_2_PORT_MODE;
  7482. if (CHIP_MODE_IS_4_PORT(bp))
  7483. bp->pfid = (bp->pf_num >> 1); /* 0..3 */
  7484. else
  7485. bp->pfid = (bp->pf_num & 0x6); /* 0, 2, 4, 6 */
  7486. } else {
  7487. bp->common.chip_port_mode = CHIP_PORT_MODE_NONE; /* N/A */
  7488. bp->pfid = bp->pf_num; /* 0..7 */
  7489. }
  7490. bp->link_params.chip_id = bp->common.chip_id;
  7491. BNX2X_DEV_INFO("chip ID is 0x%x\n", id);
  7492. val = (REG_RD(bp, 0x2874) & 0x55);
  7493. if ((bp->common.chip_id & 0x1) ||
  7494. (CHIP_IS_E1(bp) && val) || (CHIP_IS_E1H(bp) && (val == 0x55))) {
  7495. bp->flags |= ONE_PORT_FLAG;
  7496. BNX2X_DEV_INFO("single port device\n");
  7497. }
  7498. val = REG_RD(bp, MCP_REG_MCPR_NVM_CFG4);
  7499. bp->common.flash_size = (BNX2X_NVRAM_1MB_SIZE <<
  7500. (val & MCPR_NVM_CFG4_FLASH_SIZE));
  7501. BNX2X_DEV_INFO("flash_size 0x%x (%d)\n",
  7502. bp->common.flash_size, bp->common.flash_size);
  7503. bnx2x_init_shmem(bp);
  7504. bp->common.shmem2_base = REG_RD(bp, (BP_PATH(bp) ?
  7505. MISC_REG_GENERIC_CR_1 :
  7506. MISC_REG_GENERIC_CR_0));
  7507. bp->link_params.shmem_base = bp->common.shmem_base;
  7508. bp->link_params.shmem2_base = bp->common.shmem2_base;
  7509. BNX2X_DEV_INFO("shmem offset 0x%x shmem2 offset 0x%x\n",
  7510. bp->common.shmem_base, bp->common.shmem2_base);
  7511. if (!bp->common.shmem_base) {
  7512. BNX2X_DEV_INFO("MCP not active\n");
  7513. bp->flags |= NO_MCP_FLAG;
  7514. return;
  7515. }
  7516. bp->common.hw_config = SHMEM_RD(bp, dev_info.shared_hw_config.config);
  7517. BNX2X_DEV_INFO("hw_config 0x%08x\n", bp->common.hw_config);
  7518. bp->link_params.hw_led_mode = ((bp->common.hw_config &
  7519. SHARED_HW_CFG_LED_MODE_MASK) >>
  7520. SHARED_HW_CFG_LED_MODE_SHIFT);
  7521. bp->link_params.feature_config_flags = 0;
  7522. val = SHMEM_RD(bp, dev_info.shared_feature_config.config);
  7523. if (val & SHARED_FEAT_CFG_OVERRIDE_PREEMPHASIS_CFG_ENABLED)
  7524. bp->link_params.feature_config_flags |=
  7525. FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED;
  7526. else
  7527. bp->link_params.feature_config_flags &=
  7528. ~FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED;
  7529. val = SHMEM_RD(bp, dev_info.bc_rev) >> 8;
  7530. bp->common.bc_ver = val;
  7531. BNX2X_DEV_INFO("bc_ver %X\n", val);
  7532. if (val < BNX2X_BC_VER) {
  7533. /* for now only warn
  7534. * later we might need to enforce this */
  7535. BNX2X_ERR("This driver needs bc_ver %X but found %X, "
  7536. "please upgrade BC\n", BNX2X_BC_VER, val);
  7537. }
  7538. bp->link_params.feature_config_flags |=
  7539. (val >= REQ_BC_VER_4_VRFY_FIRST_PHY_OPT_MDL) ?
  7540. FEATURE_CONFIG_BC_SUPPORTS_OPT_MDL_VRFY : 0;
  7541. bp->link_params.feature_config_flags |=
  7542. (val >= REQ_BC_VER_4_VRFY_SPECIFIC_PHY_OPT_MDL) ?
  7543. FEATURE_CONFIG_BC_SUPPORTS_DUAL_PHY_OPT_MDL_VRFY : 0;
  7544. bp->link_params.feature_config_flags |=
  7545. (val >= REQ_BC_VER_4_SFP_TX_DISABLE_SUPPORTED) ?
  7546. FEATURE_CONFIG_BC_SUPPORTS_SFP_TX_DISABLED : 0;
  7547. bp->flags |= (val >= REQ_BC_VER_4_PFC_STATS_SUPPORTED) ?
  7548. BC_SUPPORTS_PFC_STATS : 0;
  7549. boot_mode = SHMEM_RD(bp,
  7550. dev_info.port_feature_config[BP_PORT(bp)].mba_config) &
  7551. PORT_FEATURE_MBA_BOOT_AGENT_TYPE_MASK;
  7552. switch (boot_mode) {
  7553. case PORT_FEATURE_MBA_BOOT_AGENT_TYPE_PXE:
  7554. bp->common.boot_mode = FEATURE_ETH_BOOTMODE_PXE;
  7555. break;
  7556. case PORT_FEATURE_MBA_BOOT_AGENT_TYPE_ISCSIB:
  7557. bp->common.boot_mode = FEATURE_ETH_BOOTMODE_ISCSI;
  7558. break;
  7559. case PORT_FEATURE_MBA_BOOT_AGENT_TYPE_FCOE_BOOT:
  7560. bp->common.boot_mode = FEATURE_ETH_BOOTMODE_FCOE;
  7561. break;
  7562. case PORT_FEATURE_MBA_BOOT_AGENT_TYPE_NONE:
  7563. bp->common.boot_mode = FEATURE_ETH_BOOTMODE_NONE;
  7564. break;
  7565. }
  7566. pci_read_config_word(bp->pdev, bp->pm_cap + PCI_PM_PMC, &pmc);
  7567. bp->flags |= (pmc & PCI_PM_CAP_PME_D3cold) ? 0 : NO_WOL_FLAG;
  7568. BNX2X_DEV_INFO("%sWoL capable\n",
  7569. (bp->flags & NO_WOL_FLAG) ? "not " : "");
  7570. val = SHMEM_RD(bp, dev_info.shared_hw_config.part_num);
  7571. val2 = SHMEM_RD(bp, dev_info.shared_hw_config.part_num[4]);
  7572. val3 = SHMEM_RD(bp, dev_info.shared_hw_config.part_num[8]);
  7573. val4 = SHMEM_RD(bp, dev_info.shared_hw_config.part_num[12]);
  7574. dev_info(&bp->pdev->dev, "part number %X-%X-%X-%X\n",
  7575. val, val2, val3, val4);
  7576. }
  7577. #define IGU_FID(val) GET_FIELD((val), IGU_REG_MAPPING_MEMORY_FID)
  7578. #define IGU_VEC(val) GET_FIELD((val), IGU_REG_MAPPING_MEMORY_VECTOR)
  7579. static void __devinit bnx2x_get_igu_cam_info(struct bnx2x *bp)
  7580. {
  7581. int pfid = BP_FUNC(bp);
  7582. int igu_sb_id;
  7583. u32 val;
  7584. u8 fid, igu_sb_cnt = 0;
  7585. bp->igu_base_sb = 0xff;
  7586. if (CHIP_INT_MODE_IS_BC(bp)) {
  7587. int vn = BP_VN(bp);
  7588. igu_sb_cnt = bp->igu_sb_cnt;
  7589. bp->igu_base_sb = (CHIP_MODE_IS_4_PORT(bp) ? pfid : vn) *
  7590. FP_SB_MAX_E1x;
  7591. bp->igu_dsb_id = E1HVN_MAX * FP_SB_MAX_E1x +
  7592. (CHIP_MODE_IS_4_PORT(bp) ? pfid : vn);
  7593. return;
  7594. }
  7595. /* IGU in normal mode - read CAM */
  7596. for (igu_sb_id = 0; igu_sb_id < IGU_REG_MAPPING_MEMORY_SIZE;
  7597. igu_sb_id++) {
  7598. val = REG_RD(bp, IGU_REG_MAPPING_MEMORY + igu_sb_id * 4);
  7599. if (!(val & IGU_REG_MAPPING_MEMORY_VALID))
  7600. continue;
  7601. fid = IGU_FID(val);
  7602. if ((fid & IGU_FID_ENCODE_IS_PF)) {
  7603. if ((fid & IGU_FID_PF_NUM_MASK) != pfid)
  7604. continue;
  7605. if (IGU_VEC(val) == 0)
  7606. /* default status block */
  7607. bp->igu_dsb_id = igu_sb_id;
  7608. else {
  7609. if (bp->igu_base_sb == 0xff)
  7610. bp->igu_base_sb = igu_sb_id;
  7611. igu_sb_cnt++;
  7612. }
  7613. }
  7614. }
  7615. #ifdef CONFIG_PCI_MSI
  7616. /*
  7617. * It's expected that number of CAM entries for this functions is equal
  7618. * to the number evaluated based on the MSI-X table size. We want a
  7619. * harsh warning if these values are different!
  7620. */
  7621. WARN_ON(bp->igu_sb_cnt != igu_sb_cnt);
  7622. #endif
  7623. if (igu_sb_cnt == 0)
  7624. BNX2X_ERR("CAM configuration error\n");
  7625. }
  7626. static void __devinit bnx2x_link_settings_supported(struct bnx2x *bp,
  7627. u32 switch_cfg)
  7628. {
  7629. int cfg_size = 0, idx, port = BP_PORT(bp);
  7630. /* Aggregation of supported attributes of all external phys */
  7631. bp->port.supported[0] = 0;
  7632. bp->port.supported[1] = 0;
  7633. switch (bp->link_params.num_phys) {
  7634. case 1:
  7635. bp->port.supported[0] = bp->link_params.phy[INT_PHY].supported;
  7636. cfg_size = 1;
  7637. break;
  7638. case 2:
  7639. bp->port.supported[0] = bp->link_params.phy[EXT_PHY1].supported;
  7640. cfg_size = 1;
  7641. break;
  7642. case 3:
  7643. if (bp->link_params.multi_phy_config &
  7644. PORT_HW_CFG_PHY_SWAPPED_ENABLED) {
  7645. bp->port.supported[1] =
  7646. bp->link_params.phy[EXT_PHY1].supported;
  7647. bp->port.supported[0] =
  7648. bp->link_params.phy[EXT_PHY2].supported;
  7649. } else {
  7650. bp->port.supported[0] =
  7651. bp->link_params.phy[EXT_PHY1].supported;
  7652. bp->port.supported[1] =
  7653. bp->link_params.phy[EXT_PHY2].supported;
  7654. }
  7655. cfg_size = 2;
  7656. break;
  7657. }
  7658. if (!(bp->port.supported[0] || bp->port.supported[1])) {
  7659. BNX2X_ERR("NVRAM config error. BAD phy config."
  7660. "PHY1 config 0x%x, PHY2 config 0x%x\n",
  7661. SHMEM_RD(bp,
  7662. dev_info.port_hw_config[port].external_phy_config),
  7663. SHMEM_RD(bp,
  7664. dev_info.port_hw_config[port].external_phy_config2));
  7665. return;
  7666. }
  7667. if (CHIP_IS_E3(bp))
  7668. bp->port.phy_addr = REG_RD(bp, MISC_REG_WC0_CTRL_PHY_ADDR);
  7669. else {
  7670. switch (switch_cfg) {
  7671. case SWITCH_CFG_1G:
  7672. bp->port.phy_addr = REG_RD(
  7673. bp, NIG_REG_SERDES0_CTRL_PHY_ADDR + port*0x10);
  7674. break;
  7675. case SWITCH_CFG_10G:
  7676. bp->port.phy_addr = REG_RD(
  7677. bp, NIG_REG_XGXS0_CTRL_PHY_ADDR + port*0x18);
  7678. break;
  7679. default:
  7680. BNX2X_ERR("BAD switch_cfg link_config 0x%x\n",
  7681. bp->port.link_config[0]);
  7682. return;
  7683. }
  7684. }
  7685. BNX2X_DEV_INFO("phy_addr 0x%x\n", bp->port.phy_addr);
  7686. /* mask what we support according to speed_cap_mask per configuration */
  7687. for (idx = 0; idx < cfg_size; idx++) {
  7688. if (!(bp->link_params.speed_cap_mask[idx] &
  7689. PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_HALF))
  7690. bp->port.supported[idx] &= ~SUPPORTED_10baseT_Half;
  7691. if (!(bp->link_params.speed_cap_mask[idx] &
  7692. PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_FULL))
  7693. bp->port.supported[idx] &= ~SUPPORTED_10baseT_Full;
  7694. if (!(bp->link_params.speed_cap_mask[idx] &
  7695. PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_HALF))
  7696. bp->port.supported[idx] &= ~SUPPORTED_100baseT_Half;
  7697. if (!(bp->link_params.speed_cap_mask[idx] &
  7698. PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_FULL))
  7699. bp->port.supported[idx] &= ~SUPPORTED_100baseT_Full;
  7700. if (!(bp->link_params.speed_cap_mask[idx] &
  7701. PORT_HW_CFG_SPEED_CAPABILITY_D0_1G))
  7702. bp->port.supported[idx] &= ~(SUPPORTED_1000baseT_Half |
  7703. SUPPORTED_1000baseT_Full);
  7704. if (!(bp->link_params.speed_cap_mask[idx] &
  7705. PORT_HW_CFG_SPEED_CAPABILITY_D0_2_5G))
  7706. bp->port.supported[idx] &= ~SUPPORTED_2500baseX_Full;
  7707. if (!(bp->link_params.speed_cap_mask[idx] &
  7708. PORT_HW_CFG_SPEED_CAPABILITY_D0_10G))
  7709. bp->port.supported[idx] &= ~SUPPORTED_10000baseT_Full;
  7710. }
  7711. BNX2X_DEV_INFO("supported 0x%x 0x%x\n", bp->port.supported[0],
  7712. bp->port.supported[1]);
  7713. }
  7714. static void __devinit bnx2x_link_settings_requested(struct bnx2x *bp)
  7715. {
  7716. u32 link_config, idx, cfg_size = 0;
  7717. bp->port.advertising[0] = 0;
  7718. bp->port.advertising[1] = 0;
  7719. switch (bp->link_params.num_phys) {
  7720. case 1:
  7721. case 2:
  7722. cfg_size = 1;
  7723. break;
  7724. case 3:
  7725. cfg_size = 2;
  7726. break;
  7727. }
  7728. for (idx = 0; idx < cfg_size; idx++) {
  7729. bp->link_params.req_duplex[idx] = DUPLEX_FULL;
  7730. link_config = bp->port.link_config[idx];
  7731. switch (link_config & PORT_FEATURE_LINK_SPEED_MASK) {
  7732. case PORT_FEATURE_LINK_SPEED_AUTO:
  7733. if (bp->port.supported[idx] & SUPPORTED_Autoneg) {
  7734. bp->link_params.req_line_speed[idx] =
  7735. SPEED_AUTO_NEG;
  7736. bp->port.advertising[idx] |=
  7737. bp->port.supported[idx];
  7738. } else {
  7739. /* force 10G, no AN */
  7740. bp->link_params.req_line_speed[idx] =
  7741. SPEED_10000;
  7742. bp->port.advertising[idx] |=
  7743. (ADVERTISED_10000baseT_Full |
  7744. ADVERTISED_FIBRE);
  7745. continue;
  7746. }
  7747. break;
  7748. case PORT_FEATURE_LINK_SPEED_10M_FULL:
  7749. if (bp->port.supported[idx] & SUPPORTED_10baseT_Full) {
  7750. bp->link_params.req_line_speed[idx] =
  7751. SPEED_10;
  7752. bp->port.advertising[idx] |=
  7753. (ADVERTISED_10baseT_Full |
  7754. ADVERTISED_TP);
  7755. } else {
  7756. BNX2X_ERR("NVRAM config error. "
  7757. "Invalid link_config 0x%x"
  7758. " speed_cap_mask 0x%x\n",
  7759. link_config,
  7760. bp->link_params.speed_cap_mask[idx]);
  7761. return;
  7762. }
  7763. break;
  7764. case PORT_FEATURE_LINK_SPEED_10M_HALF:
  7765. if (bp->port.supported[idx] & SUPPORTED_10baseT_Half) {
  7766. bp->link_params.req_line_speed[idx] =
  7767. SPEED_10;
  7768. bp->link_params.req_duplex[idx] =
  7769. DUPLEX_HALF;
  7770. bp->port.advertising[idx] |=
  7771. (ADVERTISED_10baseT_Half |
  7772. ADVERTISED_TP);
  7773. } else {
  7774. BNX2X_ERR("NVRAM config error. "
  7775. "Invalid link_config 0x%x"
  7776. " speed_cap_mask 0x%x\n",
  7777. link_config,
  7778. bp->link_params.speed_cap_mask[idx]);
  7779. return;
  7780. }
  7781. break;
  7782. case PORT_FEATURE_LINK_SPEED_100M_FULL:
  7783. if (bp->port.supported[idx] &
  7784. SUPPORTED_100baseT_Full) {
  7785. bp->link_params.req_line_speed[idx] =
  7786. SPEED_100;
  7787. bp->port.advertising[idx] |=
  7788. (ADVERTISED_100baseT_Full |
  7789. ADVERTISED_TP);
  7790. } else {
  7791. BNX2X_ERR("NVRAM config error. "
  7792. "Invalid link_config 0x%x"
  7793. " speed_cap_mask 0x%x\n",
  7794. link_config,
  7795. bp->link_params.speed_cap_mask[idx]);
  7796. return;
  7797. }
  7798. break;
  7799. case PORT_FEATURE_LINK_SPEED_100M_HALF:
  7800. if (bp->port.supported[idx] &
  7801. SUPPORTED_100baseT_Half) {
  7802. bp->link_params.req_line_speed[idx] =
  7803. SPEED_100;
  7804. bp->link_params.req_duplex[idx] =
  7805. DUPLEX_HALF;
  7806. bp->port.advertising[idx] |=
  7807. (ADVERTISED_100baseT_Half |
  7808. ADVERTISED_TP);
  7809. } else {
  7810. BNX2X_ERR("NVRAM config error. "
  7811. "Invalid link_config 0x%x"
  7812. " speed_cap_mask 0x%x\n",
  7813. link_config,
  7814. bp->link_params.speed_cap_mask[idx]);
  7815. return;
  7816. }
  7817. break;
  7818. case PORT_FEATURE_LINK_SPEED_1G:
  7819. if (bp->port.supported[idx] &
  7820. SUPPORTED_1000baseT_Full) {
  7821. bp->link_params.req_line_speed[idx] =
  7822. SPEED_1000;
  7823. bp->port.advertising[idx] |=
  7824. (ADVERTISED_1000baseT_Full |
  7825. ADVERTISED_TP);
  7826. } else {
  7827. BNX2X_ERR("NVRAM config error. "
  7828. "Invalid link_config 0x%x"
  7829. " speed_cap_mask 0x%x\n",
  7830. link_config,
  7831. bp->link_params.speed_cap_mask[idx]);
  7832. return;
  7833. }
  7834. break;
  7835. case PORT_FEATURE_LINK_SPEED_2_5G:
  7836. if (bp->port.supported[idx] &
  7837. SUPPORTED_2500baseX_Full) {
  7838. bp->link_params.req_line_speed[idx] =
  7839. SPEED_2500;
  7840. bp->port.advertising[idx] |=
  7841. (ADVERTISED_2500baseX_Full |
  7842. ADVERTISED_TP);
  7843. } else {
  7844. BNX2X_ERR("NVRAM config error. "
  7845. "Invalid link_config 0x%x"
  7846. " speed_cap_mask 0x%x\n",
  7847. link_config,
  7848. bp->link_params.speed_cap_mask[idx]);
  7849. return;
  7850. }
  7851. break;
  7852. case PORT_FEATURE_LINK_SPEED_10G_CX4:
  7853. if (bp->port.supported[idx] &
  7854. SUPPORTED_10000baseT_Full) {
  7855. bp->link_params.req_line_speed[idx] =
  7856. SPEED_10000;
  7857. bp->port.advertising[idx] |=
  7858. (ADVERTISED_10000baseT_Full |
  7859. ADVERTISED_FIBRE);
  7860. } else {
  7861. BNX2X_ERR("NVRAM config error. "
  7862. "Invalid link_config 0x%x"
  7863. " speed_cap_mask 0x%x\n",
  7864. link_config,
  7865. bp->link_params.speed_cap_mask[idx]);
  7866. return;
  7867. }
  7868. break;
  7869. case PORT_FEATURE_LINK_SPEED_20G:
  7870. bp->link_params.req_line_speed[idx] = SPEED_20000;
  7871. break;
  7872. default:
  7873. BNX2X_ERR("NVRAM config error. "
  7874. "BAD link speed link_config 0x%x\n",
  7875. link_config);
  7876. bp->link_params.req_line_speed[idx] =
  7877. SPEED_AUTO_NEG;
  7878. bp->port.advertising[idx] =
  7879. bp->port.supported[idx];
  7880. break;
  7881. }
  7882. bp->link_params.req_flow_ctrl[idx] = (link_config &
  7883. PORT_FEATURE_FLOW_CONTROL_MASK);
  7884. if ((bp->link_params.req_flow_ctrl[idx] ==
  7885. BNX2X_FLOW_CTRL_AUTO) &&
  7886. !(bp->port.supported[idx] & SUPPORTED_Autoneg)) {
  7887. bp->link_params.req_flow_ctrl[idx] =
  7888. BNX2X_FLOW_CTRL_NONE;
  7889. }
  7890. BNX2X_DEV_INFO("req_line_speed %d req_duplex %d req_flow_ctrl"
  7891. " 0x%x advertising 0x%x\n",
  7892. bp->link_params.req_line_speed[idx],
  7893. bp->link_params.req_duplex[idx],
  7894. bp->link_params.req_flow_ctrl[idx],
  7895. bp->port.advertising[idx]);
  7896. }
  7897. }
  7898. static void __devinit bnx2x_set_mac_buf(u8 *mac_buf, u32 mac_lo, u16 mac_hi)
  7899. {
  7900. mac_hi = cpu_to_be16(mac_hi);
  7901. mac_lo = cpu_to_be32(mac_lo);
  7902. memcpy(mac_buf, &mac_hi, sizeof(mac_hi));
  7903. memcpy(mac_buf + sizeof(mac_hi), &mac_lo, sizeof(mac_lo));
  7904. }
  7905. static void __devinit bnx2x_get_port_hwinfo(struct bnx2x *bp)
  7906. {
  7907. int port = BP_PORT(bp);
  7908. u32 config;
  7909. u32 ext_phy_type, ext_phy_config;
  7910. bp->link_params.bp = bp;
  7911. bp->link_params.port = port;
  7912. bp->link_params.lane_config =
  7913. SHMEM_RD(bp, dev_info.port_hw_config[port].lane_config);
  7914. bp->link_params.speed_cap_mask[0] =
  7915. SHMEM_RD(bp,
  7916. dev_info.port_hw_config[port].speed_capability_mask);
  7917. bp->link_params.speed_cap_mask[1] =
  7918. SHMEM_RD(bp,
  7919. dev_info.port_hw_config[port].speed_capability_mask2);
  7920. bp->port.link_config[0] =
  7921. SHMEM_RD(bp, dev_info.port_feature_config[port].link_config);
  7922. bp->port.link_config[1] =
  7923. SHMEM_RD(bp, dev_info.port_feature_config[port].link_config2);
  7924. bp->link_params.multi_phy_config =
  7925. SHMEM_RD(bp, dev_info.port_hw_config[port].multi_phy_config);
  7926. /* If the device is capable of WoL, set the default state according
  7927. * to the HW
  7928. */
  7929. config = SHMEM_RD(bp, dev_info.port_feature_config[port].config);
  7930. bp->wol = (!(bp->flags & NO_WOL_FLAG) &&
  7931. (config & PORT_FEATURE_WOL_ENABLED));
  7932. BNX2X_DEV_INFO("lane_config 0x%08x "
  7933. "speed_cap_mask0 0x%08x link_config0 0x%08x\n",
  7934. bp->link_params.lane_config,
  7935. bp->link_params.speed_cap_mask[0],
  7936. bp->port.link_config[0]);
  7937. bp->link_params.switch_cfg = (bp->port.link_config[0] &
  7938. PORT_FEATURE_CONNECTED_SWITCH_MASK);
  7939. bnx2x_phy_probe(&bp->link_params);
  7940. bnx2x_link_settings_supported(bp, bp->link_params.switch_cfg);
  7941. bnx2x_link_settings_requested(bp);
  7942. /*
  7943. * If connected directly, work with the internal PHY, otherwise, work
  7944. * with the external PHY
  7945. */
  7946. ext_phy_config =
  7947. SHMEM_RD(bp,
  7948. dev_info.port_hw_config[port].external_phy_config);
  7949. ext_phy_type = XGXS_EXT_PHY_TYPE(ext_phy_config);
  7950. if (ext_phy_type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT)
  7951. bp->mdio.prtad = bp->port.phy_addr;
  7952. else if ((ext_phy_type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE) &&
  7953. (ext_phy_type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_NOT_CONN))
  7954. bp->mdio.prtad =
  7955. XGXS_EXT_PHY_ADDR(ext_phy_config);
  7956. /*
  7957. * Check if hw lock is required to access MDC/MDIO bus to the PHY(s)
  7958. * In MF mode, it is set to cover self test cases
  7959. */
  7960. if (IS_MF(bp))
  7961. bp->port.need_hw_lock = 1;
  7962. else
  7963. bp->port.need_hw_lock = bnx2x_hw_lock_required(bp,
  7964. bp->common.shmem_base,
  7965. bp->common.shmem2_base);
  7966. }
  7967. void bnx2x_get_iscsi_info(struct bnx2x *bp)
  7968. {
  7969. #ifdef BCM_CNIC
  7970. int port = BP_PORT(bp);
  7971. u32 max_iscsi_conn = FW_ENCODE_32BIT_PATTERN ^ SHMEM_RD(bp,
  7972. drv_lic_key[port].max_iscsi_conn);
  7973. /* Get the number of maximum allowed iSCSI connections */
  7974. bp->cnic_eth_dev.max_iscsi_conn =
  7975. (max_iscsi_conn & BNX2X_MAX_ISCSI_INIT_CONN_MASK) >>
  7976. BNX2X_MAX_ISCSI_INIT_CONN_SHIFT;
  7977. BNX2X_DEV_INFO("max_iscsi_conn 0x%x\n",
  7978. bp->cnic_eth_dev.max_iscsi_conn);
  7979. /*
  7980. * If maximum allowed number of connections is zero -
  7981. * disable the feature.
  7982. */
  7983. if (!bp->cnic_eth_dev.max_iscsi_conn)
  7984. bp->flags |= NO_ISCSI_FLAG;
  7985. #else
  7986. bp->flags |= NO_ISCSI_FLAG;
  7987. #endif
  7988. }
  7989. static void __devinit bnx2x_get_fcoe_info(struct bnx2x *bp)
  7990. {
  7991. #ifdef BCM_CNIC
  7992. int port = BP_PORT(bp);
  7993. int func = BP_ABS_FUNC(bp);
  7994. u32 max_fcoe_conn = FW_ENCODE_32BIT_PATTERN ^ SHMEM_RD(bp,
  7995. drv_lic_key[port].max_fcoe_conn);
  7996. /* Get the number of maximum allowed FCoE connections */
  7997. bp->cnic_eth_dev.max_fcoe_conn =
  7998. (max_fcoe_conn & BNX2X_MAX_FCOE_INIT_CONN_MASK) >>
  7999. BNX2X_MAX_FCOE_INIT_CONN_SHIFT;
  8000. /* Read the WWN: */
  8001. if (!IS_MF(bp)) {
  8002. /* Port info */
  8003. bp->cnic_eth_dev.fcoe_wwn_port_name_hi =
  8004. SHMEM_RD(bp,
  8005. dev_info.port_hw_config[port].
  8006. fcoe_wwn_port_name_upper);
  8007. bp->cnic_eth_dev.fcoe_wwn_port_name_lo =
  8008. SHMEM_RD(bp,
  8009. dev_info.port_hw_config[port].
  8010. fcoe_wwn_port_name_lower);
  8011. /* Node info */
  8012. bp->cnic_eth_dev.fcoe_wwn_node_name_hi =
  8013. SHMEM_RD(bp,
  8014. dev_info.port_hw_config[port].
  8015. fcoe_wwn_node_name_upper);
  8016. bp->cnic_eth_dev.fcoe_wwn_node_name_lo =
  8017. SHMEM_RD(bp,
  8018. dev_info.port_hw_config[port].
  8019. fcoe_wwn_node_name_lower);
  8020. } else if (!IS_MF_SD(bp)) {
  8021. u32 cfg = MF_CFG_RD(bp, func_ext_config[func].func_cfg);
  8022. /*
  8023. * Read the WWN info only if the FCoE feature is enabled for
  8024. * this function.
  8025. */
  8026. if (cfg & MACP_FUNC_CFG_FLAGS_FCOE_OFFLOAD) {
  8027. /* Port info */
  8028. bp->cnic_eth_dev.fcoe_wwn_port_name_hi =
  8029. MF_CFG_RD(bp, func_ext_config[func].
  8030. fcoe_wwn_port_name_upper);
  8031. bp->cnic_eth_dev.fcoe_wwn_port_name_lo =
  8032. MF_CFG_RD(bp, func_ext_config[func].
  8033. fcoe_wwn_port_name_lower);
  8034. /* Node info */
  8035. bp->cnic_eth_dev.fcoe_wwn_node_name_hi =
  8036. MF_CFG_RD(bp, func_ext_config[func].
  8037. fcoe_wwn_node_name_upper);
  8038. bp->cnic_eth_dev.fcoe_wwn_node_name_lo =
  8039. MF_CFG_RD(bp, func_ext_config[func].
  8040. fcoe_wwn_node_name_lower);
  8041. }
  8042. }
  8043. BNX2X_DEV_INFO("max_fcoe_conn 0x%x\n", bp->cnic_eth_dev.max_fcoe_conn);
  8044. /*
  8045. * If maximum allowed number of connections is zero -
  8046. * disable the feature.
  8047. */
  8048. if (!bp->cnic_eth_dev.max_fcoe_conn)
  8049. bp->flags |= NO_FCOE_FLAG;
  8050. #else
  8051. bp->flags |= NO_FCOE_FLAG;
  8052. #endif
  8053. }
  8054. static void __devinit bnx2x_get_cnic_info(struct bnx2x *bp)
  8055. {
  8056. /*
  8057. * iSCSI may be dynamically disabled but reading
  8058. * info here we will decrease memory usage by driver
  8059. * if the feature is disabled for good
  8060. */
  8061. bnx2x_get_iscsi_info(bp);
  8062. bnx2x_get_fcoe_info(bp);
  8063. }
  8064. static void __devinit bnx2x_get_mac_hwinfo(struct bnx2x *bp)
  8065. {
  8066. u32 val, val2;
  8067. int func = BP_ABS_FUNC(bp);
  8068. int port = BP_PORT(bp);
  8069. #ifdef BCM_CNIC
  8070. u8 *iscsi_mac = bp->cnic_eth_dev.iscsi_mac;
  8071. u8 *fip_mac = bp->fip_mac;
  8072. #endif
  8073. /* Zero primary MAC configuration */
  8074. memset(bp->dev->dev_addr, 0, ETH_ALEN);
  8075. if (BP_NOMCP(bp)) {
  8076. BNX2X_ERROR("warning: random MAC workaround active\n");
  8077. random_ether_addr(bp->dev->dev_addr);
  8078. } else if (IS_MF(bp)) {
  8079. val2 = MF_CFG_RD(bp, func_mf_config[func].mac_upper);
  8080. val = MF_CFG_RD(bp, func_mf_config[func].mac_lower);
  8081. if ((val2 != FUNC_MF_CFG_UPPERMAC_DEFAULT) &&
  8082. (val != FUNC_MF_CFG_LOWERMAC_DEFAULT))
  8083. bnx2x_set_mac_buf(bp->dev->dev_addr, val, val2);
  8084. #ifdef BCM_CNIC
  8085. /*
  8086. * iSCSI and FCoE NPAR MACs: if there is no either iSCSI or
  8087. * FCoE MAC then the appropriate feature should be disabled.
  8088. */
  8089. if (IS_MF_SI(bp)) {
  8090. u32 cfg = MF_CFG_RD(bp, func_ext_config[func].func_cfg);
  8091. if (cfg & MACP_FUNC_CFG_FLAGS_ISCSI_OFFLOAD) {
  8092. val2 = MF_CFG_RD(bp, func_ext_config[func].
  8093. iscsi_mac_addr_upper);
  8094. val = MF_CFG_RD(bp, func_ext_config[func].
  8095. iscsi_mac_addr_lower);
  8096. bnx2x_set_mac_buf(iscsi_mac, val, val2);
  8097. BNX2X_DEV_INFO("Read iSCSI MAC: %pM\n",
  8098. iscsi_mac);
  8099. } else
  8100. bp->flags |= NO_ISCSI_OOO_FLAG | NO_ISCSI_FLAG;
  8101. if (cfg & MACP_FUNC_CFG_FLAGS_FCOE_OFFLOAD) {
  8102. val2 = MF_CFG_RD(bp, func_ext_config[func].
  8103. fcoe_mac_addr_upper);
  8104. val = MF_CFG_RD(bp, func_ext_config[func].
  8105. fcoe_mac_addr_lower);
  8106. bnx2x_set_mac_buf(fip_mac, val, val2);
  8107. BNX2X_DEV_INFO("Read FCoE L2 MAC: %pM\n",
  8108. fip_mac);
  8109. } else
  8110. bp->flags |= NO_FCOE_FLAG;
  8111. } else { /* SD mode */
  8112. if (BNX2X_IS_MF_PROTOCOL_ISCSI(bp)) {
  8113. /* use primary mac as iscsi mac */
  8114. memcpy(iscsi_mac, bp->dev->dev_addr, ETH_ALEN);
  8115. /* Zero primary MAC configuration */
  8116. memset(bp->dev->dev_addr, 0, ETH_ALEN);
  8117. BNX2X_DEV_INFO("SD ISCSI MODE\n");
  8118. BNX2X_DEV_INFO("Read iSCSI MAC: %pM\n",
  8119. iscsi_mac);
  8120. }
  8121. }
  8122. #endif
  8123. } else {
  8124. /* in SF read MACs from port configuration */
  8125. val2 = SHMEM_RD(bp, dev_info.port_hw_config[port].mac_upper);
  8126. val = SHMEM_RD(bp, dev_info.port_hw_config[port].mac_lower);
  8127. bnx2x_set_mac_buf(bp->dev->dev_addr, val, val2);
  8128. #ifdef BCM_CNIC
  8129. val2 = SHMEM_RD(bp, dev_info.port_hw_config[port].
  8130. iscsi_mac_upper);
  8131. val = SHMEM_RD(bp, dev_info.port_hw_config[port].
  8132. iscsi_mac_lower);
  8133. bnx2x_set_mac_buf(iscsi_mac, val, val2);
  8134. val2 = SHMEM_RD(bp, dev_info.port_hw_config[port].
  8135. fcoe_fip_mac_upper);
  8136. val = SHMEM_RD(bp, dev_info.port_hw_config[port].
  8137. fcoe_fip_mac_lower);
  8138. bnx2x_set_mac_buf(fip_mac, val, val2);
  8139. #endif
  8140. }
  8141. memcpy(bp->link_params.mac_addr, bp->dev->dev_addr, ETH_ALEN);
  8142. memcpy(bp->dev->perm_addr, bp->dev->dev_addr, ETH_ALEN);
  8143. #ifdef BCM_CNIC
  8144. /* Set the FCoE MAC in MF_SD mode */
  8145. if (!CHIP_IS_E1x(bp) && IS_MF_SD(bp))
  8146. memcpy(fip_mac, bp->dev->dev_addr, ETH_ALEN);
  8147. /* Disable iSCSI if MAC configuration is
  8148. * invalid.
  8149. */
  8150. if (!is_valid_ether_addr(iscsi_mac)) {
  8151. bp->flags |= NO_ISCSI_FLAG;
  8152. memset(iscsi_mac, 0, ETH_ALEN);
  8153. }
  8154. /* Disable FCoE if MAC configuration is
  8155. * invalid.
  8156. */
  8157. if (!is_valid_ether_addr(fip_mac)) {
  8158. bp->flags |= NO_FCOE_FLAG;
  8159. memset(bp->fip_mac, 0, ETH_ALEN);
  8160. }
  8161. #endif
  8162. if (!bnx2x_is_valid_ether_addr(bp, bp->dev->dev_addr))
  8163. dev_err(&bp->pdev->dev,
  8164. "bad Ethernet MAC address configuration: "
  8165. "%pM, change it manually before bringing up "
  8166. "the appropriate network interface\n",
  8167. bp->dev->dev_addr);
  8168. }
  8169. static int __devinit bnx2x_get_hwinfo(struct bnx2x *bp)
  8170. {
  8171. int /*abs*/func = BP_ABS_FUNC(bp);
  8172. int vn;
  8173. u32 val = 0;
  8174. int rc = 0;
  8175. bnx2x_get_common_hwinfo(bp);
  8176. /*
  8177. * initialize IGU parameters
  8178. */
  8179. if (CHIP_IS_E1x(bp)) {
  8180. bp->common.int_block = INT_BLOCK_HC;
  8181. bp->igu_dsb_id = DEF_SB_IGU_ID;
  8182. bp->igu_base_sb = 0;
  8183. } else {
  8184. bp->common.int_block = INT_BLOCK_IGU;
  8185. /* do not allow device reset during IGU info preocessing */
  8186. bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_RESET);
  8187. val = REG_RD(bp, IGU_REG_BLOCK_CONFIGURATION);
  8188. if (val & IGU_BLOCK_CONFIGURATION_REG_BACKWARD_COMP_EN) {
  8189. int tout = 5000;
  8190. BNX2X_DEV_INFO("FORCING Normal Mode\n");
  8191. val &= ~(IGU_BLOCK_CONFIGURATION_REG_BACKWARD_COMP_EN);
  8192. REG_WR(bp, IGU_REG_BLOCK_CONFIGURATION, val);
  8193. REG_WR(bp, IGU_REG_RESET_MEMORIES, 0x7f);
  8194. while (tout && REG_RD(bp, IGU_REG_RESET_MEMORIES)) {
  8195. tout--;
  8196. usleep_range(1000, 1000);
  8197. }
  8198. if (REG_RD(bp, IGU_REG_RESET_MEMORIES)) {
  8199. dev_err(&bp->pdev->dev,
  8200. "FORCING Normal Mode failed!!!\n");
  8201. return -EPERM;
  8202. }
  8203. }
  8204. if (val & IGU_BLOCK_CONFIGURATION_REG_BACKWARD_COMP_EN) {
  8205. BNX2X_DEV_INFO("IGU Backward Compatible Mode\n");
  8206. bp->common.int_block |= INT_BLOCK_MODE_BW_COMP;
  8207. } else
  8208. BNX2X_DEV_INFO("IGU Normal Mode\n");
  8209. bnx2x_get_igu_cam_info(bp);
  8210. bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_RESET);
  8211. }
  8212. /*
  8213. * set base FW non-default (fast path) status block id, this value is
  8214. * used to initialize the fw_sb_id saved on the fp/queue structure to
  8215. * determine the id used by the FW.
  8216. */
  8217. if (CHIP_IS_E1x(bp))
  8218. bp->base_fw_ndsb = BP_PORT(bp) * FP_SB_MAX_E1x + BP_L_ID(bp);
  8219. else /*
  8220. * 57712 - we currently use one FW SB per IGU SB (Rx and Tx of
  8221. * the same queue are indicated on the same IGU SB). So we prefer
  8222. * FW and IGU SBs to be the same value.
  8223. */
  8224. bp->base_fw_ndsb = bp->igu_base_sb;
  8225. BNX2X_DEV_INFO("igu_dsb_id %d igu_base_sb %d igu_sb_cnt %d\n"
  8226. "base_fw_ndsb %d\n", bp->igu_dsb_id, bp->igu_base_sb,
  8227. bp->igu_sb_cnt, bp->base_fw_ndsb);
  8228. /*
  8229. * Initialize MF configuration
  8230. */
  8231. bp->mf_ov = 0;
  8232. bp->mf_mode = 0;
  8233. vn = BP_VN(bp);
  8234. if (!CHIP_IS_E1(bp) && !BP_NOMCP(bp)) {
  8235. BNX2X_DEV_INFO("shmem2base 0x%x, size %d, mfcfg offset %d\n",
  8236. bp->common.shmem2_base, SHMEM2_RD(bp, size),
  8237. (u32)offsetof(struct shmem2_region, mf_cfg_addr));
  8238. if (SHMEM2_HAS(bp, mf_cfg_addr))
  8239. bp->common.mf_cfg_base = SHMEM2_RD(bp, mf_cfg_addr);
  8240. else
  8241. bp->common.mf_cfg_base = bp->common.shmem_base +
  8242. offsetof(struct shmem_region, func_mb) +
  8243. E1H_FUNC_MAX * sizeof(struct drv_func_mb);
  8244. /*
  8245. * get mf configuration:
  8246. * 1. existence of MF configuration
  8247. * 2. MAC address must be legal (check only upper bytes)
  8248. * for Switch-Independent mode;
  8249. * OVLAN must be legal for Switch-Dependent mode
  8250. * 3. SF_MODE configures specific MF mode
  8251. */
  8252. if (bp->common.mf_cfg_base != SHMEM_MF_CFG_ADDR_NONE) {
  8253. /* get mf configuration */
  8254. val = SHMEM_RD(bp,
  8255. dev_info.shared_feature_config.config);
  8256. val &= SHARED_FEAT_CFG_FORCE_SF_MODE_MASK;
  8257. switch (val) {
  8258. case SHARED_FEAT_CFG_FORCE_SF_MODE_SWITCH_INDEPT:
  8259. val = MF_CFG_RD(bp, func_mf_config[func].
  8260. mac_upper);
  8261. /* check for legal mac (upper bytes)*/
  8262. if (val != 0xffff) {
  8263. bp->mf_mode = MULTI_FUNCTION_SI;
  8264. bp->mf_config[vn] = MF_CFG_RD(bp,
  8265. func_mf_config[func].config);
  8266. } else
  8267. BNX2X_DEV_INFO("illegal MAC address "
  8268. "for SI\n");
  8269. break;
  8270. case SHARED_FEAT_CFG_FORCE_SF_MODE_MF_ALLOWED:
  8271. /* get OV configuration */
  8272. val = MF_CFG_RD(bp,
  8273. func_mf_config[FUNC_0].e1hov_tag);
  8274. val &= FUNC_MF_CFG_E1HOV_TAG_MASK;
  8275. if (val != FUNC_MF_CFG_E1HOV_TAG_DEFAULT) {
  8276. bp->mf_mode = MULTI_FUNCTION_SD;
  8277. bp->mf_config[vn] = MF_CFG_RD(bp,
  8278. func_mf_config[func].config);
  8279. } else
  8280. BNX2X_DEV_INFO("illegal OV for SD\n");
  8281. break;
  8282. default:
  8283. /* Unknown configuration: reset mf_config */
  8284. bp->mf_config[vn] = 0;
  8285. BNX2X_DEV_INFO("unkown MF mode 0x%x\n", val);
  8286. }
  8287. }
  8288. BNX2X_DEV_INFO("%s function mode\n",
  8289. IS_MF(bp) ? "multi" : "single");
  8290. switch (bp->mf_mode) {
  8291. case MULTI_FUNCTION_SD:
  8292. val = MF_CFG_RD(bp, func_mf_config[func].e1hov_tag) &
  8293. FUNC_MF_CFG_E1HOV_TAG_MASK;
  8294. if (val != FUNC_MF_CFG_E1HOV_TAG_DEFAULT) {
  8295. bp->mf_ov = val;
  8296. bp->path_has_ovlan = true;
  8297. BNX2X_DEV_INFO("MF OV for func %d is %d "
  8298. "(0x%04x)\n", func, bp->mf_ov,
  8299. bp->mf_ov);
  8300. } else {
  8301. dev_err(&bp->pdev->dev,
  8302. "No valid MF OV for func %d, "
  8303. "aborting\n", func);
  8304. return -EPERM;
  8305. }
  8306. break;
  8307. case MULTI_FUNCTION_SI:
  8308. BNX2X_DEV_INFO("func %d is in MF "
  8309. "switch-independent mode\n", func);
  8310. break;
  8311. default:
  8312. if (vn) {
  8313. dev_err(&bp->pdev->dev,
  8314. "VN %d is in a single function mode, "
  8315. "aborting\n", vn);
  8316. return -EPERM;
  8317. }
  8318. break;
  8319. }
  8320. /* check if other port on the path needs ovlan:
  8321. * Since MF configuration is shared between ports
  8322. * Possible mixed modes are only
  8323. * {SF, SI} {SF, SD} {SD, SF} {SI, SF}
  8324. */
  8325. if (CHIP_MODE_IS_4_PORT(bp) &&
  8326. !bp->path_has_ovlan &&
  8327. !IS_MF(bp) &&
  8328. bp->common.mf_cfg_base != SHMEM_MF_CFG_ADDR_NONE) {
  8329. u8 other_port = !BP_PORT(bp);
  8330. u8 other_func = BP_PATH(bp) + 2*other_port;
  8331. val = MF_CFG_RD(bp,
  8332. func_mf_config[other_func].e1hov_tag);
  8333. if (val != FUNC_MF_CFG_E1HOV_TAG_DEFAULT)
  8334. bp->path_has_ovlan = true;
  8335. }
  8336. }
  8337. /* adjust igu_sb_cnt to MF for E1x */
  8338. if (CHIP_IS_E1x(bp) && IS_MF(bp))
  8339. bp->igu_sb_cnt /= E1HVN_MAX;
  8340. /* port info */
  8341. bnx2x_get_port_hwinfo(bp);
  8342. /* Get MAC addresses */
  8343. bnx2x_get_mac_hwinfo(bp);
  8344. bnx2x_get_cnic_info(bp);
  8345. return rc;
  8346. }
  8347. static void __devinit bnx2x_read_fwinfo(struct bnx2x *bp)
  8348. {
  8349. int cnt, i, block_end, rodi;
  8350. char vpd_start[BNX2X_VPD_LEN+1];
  8351. char str_id_reg[VENDOR_ID_LEN+1];
  8352. char str_id_cap[VENDOR_ID_LEN+1];
  8353. char *vpd_data;
  8354. char *vpd_extended_data = NULL;
  8355. u8 len;
  8356. cnt = pci_read_vpd(bp->pdev, 0, BNX2X_VPD_LEN, vpd_start);
  8357. memset(bp->fw_ver, 0, sizeof(bp->fw_ver));
  8358. if (cnt < BNX2X_VPD_LEN)
  8359. goto out_not_found;
  8360. /* VPD RO tag should be first tag after identifier string, hence
  8361. * we should be able to find it in first BNX2X_VPD_LEN chars
  8362. */
  8363. i = pci_vpd_find_tag(vpd_start, 0, BNX2X_VPD_LEN,
  8364. PCI_VPD_LRDT_RO_DATA);
  8365. if (i < 0)
  8366. goto out_not_found;
  8367. block_end = i + PCI_VPD_LRDT_TAG_SIZE +
  8368. pci_vpd_lrdt_size(&vpd_start[i]);
  8369. i += PCI_VPD_LRDT_TAG_SIZE;
  8370. if (block_end > BNX2X_VPD_LEN) {
  8371. vpd_extended_data = kmalloc(block_end, GFP_KERNEL);
  8372. if (vpd_extended_data == NULL)
  8373. goto out_not_found;
  8374. /* read rest of vpd image into vpd_extended_data */
  8375. memcpy(vpd_extended_data, vpd_start, BNX2X_VPD_LEN);
  8376. cnt = pci_read_vpd(bp->pdev, BNX2X_VPD_LEN,
  8377. block_end - BNX2X_VPD_LEN,
  8378. vpd_extended_data + BNX2X_VPD_LEN);
  8379. if (cnt < (block_end - BNX2X_VPD_LEN))
  8380. goto out_not_found;
  8381. vpd_data = vpd_extended_data;
  8382. } else
  8383. vpd_data = vpd_start;
  8384. /* now vpd_data holds full vpd content in both cases */
  8385. rodi = pci_vpd_find_info_keyword(vpd_data, i, block_end,
  8386. PCI_VPD_RO_KEYWORD_MFR_ID);
  8387. if (rodi < 0)
  8388. goto out_not_found;
  8389. len = pci_vpd_info_field_size(&vpd_data[rodi]);
  8390. if (len != VENDOR_ID_LEN)
  8391. goto out_not_found;
  8392. rodi += PCI_VPD_INFO_FLD_HDR_SIZE;
  8393. /* vendor specific info */
  8394. snprintf(str_id_reg, VENDOR_ID_LEN + 1, "%04x", PCI_VENDOR_ID_DELL);
  8395. snprintf(str_id_cap, VENDOR_ID_LEN + 1, "%04X", PCI_VENDOR_ID_DELL);
  8396. if (!strncmp(str_id_reg, &vpd_data[rodi], VENDOR_ID_LEN) ||
  8397. !strncmp(str_id_cap, &vpd_data[rodi], VENDOR_ID_LEN)) {
  8398. rodi = pci_vpd_find_info_keyword(vpd_data, i, block_end,
  8399. PCI_VPD_RO_KEYWORD_VENDOR0);
  8400. if (rodi >= 0) {
  8401. len = pci_vpd_info_field_size(&vpd_data[rodi]);
  8402. rodi += PCI_VPD_INFO_FLD_HDR_SIZE;
  8403. if (len < 32 && (len + rodi) <= BNX2X_VPD_LEN) {
  8404. memcpy(bp->fw_ver, &vpd_data[rodi], len);
  8405. bp->fw_ver[len] = ' ';
  8406. }
  8407. }
  8408. kfree(vpd_extended_data);
  8409. return;
  8410. }
  8411. out_not_found:
  8412. kfree(vpd_extended_data);
  8413. return;
  8414. }
  8415. static void __devinit bnx2x_set_modes_bitmap(struct bnx2x *bp)
  8416. {
  8417. u32 flags = 0;
  8418. if (CHIP_REV_IS_FPGA(bp))
  8419. SET_FLAGS(flags, MODE_FPGA);
  8420. else if (CHIP_REV_IS_EMUL(bp))
  8421. SET_FLAGS(flags, MODE_EMUL);
  8422. else
  8423. SET_FLAGS(flags, MODE_ASIC);
  8424. if (CHIP_MODE_IS_4_PORT(bp))
  8425. SET_FLAGS(flags, MODE_PORT4);
  8426. else
  8427. SET_FLAGS(flags, MODE_PORT2);
  8428. if (CHIP_IS_E2(bp))
  8429. SET_FLAGS(flags, MODE_E2);
  8430. else if (CHIP_IS_E3(bp)) {
  8431. SET_FLAGS(flags, MODE_E3);
  8432. if (CHIP_REV(bp) == CHIP_REV_Ax)
  8433. SET_FLAGS(flags, MODE_E3_A0);
  8434. else /*if (CHIP_REV(bp) == CHIP_REV_Bx)*/
  8435. SET_FLAGS(flags, MODE_E3_B0 | MODE_COS3);
  8436. }
  8437. if (IS_MF(bp)) {
  8438. SET_FLAGS(flags, MODE_MF);
  8439. switch (bp->mf_mode) {
  8440. case MULTI_FUNCTION_SD:
  8441. SET_FLAGS(flags, MODE_MF_SD);
  8442. break;
  8443. case MULTI_FUNCTION_SI:
  8444. SET_FLAGS(flags, MODE_MF_SI);
  8445. break;
  8446. }
  8447. } else
  8448. SET_FLAGS(flags, MODE_SF);
  8449. #if defined(__LITTLE_ENDIAN)
  8450. SET_FLAGS(flags, MODE_LITTLE_ENDIAN);
  8451. #else /*(__BIG_ENDIAN)*/
  8452. SET_FLAGS(flags, MODE_BIG_ENDIAN);
  8453. #endif
  8454. INIT_MODE_FLAGS(bp) = flags;
  8455. }
  8456. static int __devinit bnx2x_init_bp(struct bnx2x *bp)
  8457. {
  8458. int func;
  8459. int timer_interval;
  8460. int rc;
  8461. mutex_init(&bp->port.phy_mutex);
  8462. mutex_init(&bp->fw_mb_mutex);
  8463. spin_lock_init(&bp->stats_lock);
  8464. #ifdef BCM_CNIC
  8465. mutex_init(&bp->cnic_mutex);
  8466. #endif
  8467. INIT_DELAYED_WORK(&bp->sp_task, bnx2x_sp_task);
  8468. INIT_DELAYED_WORK(&bp->sp_rtnl_task, bnx2x_sp_rtnl_task);
  8469. INIT_DELAYED_WORK(&bp->period_task, bnx2x_period_task);
  8470. rc = bnx2x_get_hwinfo(bp);
  8471. if (rc)
  8472. return rc;
  8473. bnx2x_set_modes_bitmap(bp);
  8474. rc = bnx2x_alloc_mem_bp(bp);
  8475. if (rc)
  8476. return rc;
  8477. bnx2x_read_fwinfo(bp);
  8478. func = BP_FUNC(bp);
  8479. /* need to reset chip if undi was active */
  8480. if (!BP_NOMCP(bp))
  8481. bnx2x_undi_unload(bp);
  8482. if (CHIP_REV_IS_FPGA(bp))
  8483. dev_err(&bp->pdev->dev, "FPGA detected\n");
  8484. if (BP_NOMCP(bp) && (func == 0))
  8485. dev_err(&bp->pdev->dev, "MCP disabled, "
  8486. "must load devices in order!\n");
  8487. bp->multi_mode = multi_mode;
  8488. bp->disable_tpa = disable_tpa;
  8489. #ifdef BCM_CNIC
  8490. bp->disable_tpa |= IS_MF_ISCSI_SD(bp);
  8491. #endif
  8492. /* Set TPA flags */
  8493. if (bp->disable_tpa) {
  8494. bp->flags &= ~TPA_ENABLE_FLAG;
  8495. bp->dev->features &= ~NETIF_F_LRO;
  8496. } else {
  8497. bp->flags |= TPA_ENABLE_FLAG;
  8498. bp->dev->features |= NETIF_F_LRO;
  8499. }
  8500. if (CHIP_IS_E1(bp))
  8501. bp->dropless_fc = 0;
  8502. else
  8503. bp->dropless_fc = dropless_fc;
  8504. bp->mrrs = mrrs;
  8505. bp->tx_ring_size = MAX_TX_AVAIL;
  8506. /* make sure that the numbers are in the right granularity */
  8507. bp->tx_ticks = (50 / BNX2X_BTR) * BNX2X_BTR;
  8508. bp->rx_ticks = (25 / BNX2X_BTR) * BNX2X_BTR;
  8509. timer_interval = (CHIP_REV_IS_SLOW(bp) ? 5*HZ : HZ);
  8510. bp->current_interval = (poll ? poll : timer_interval);
  8511. init_timer(&bp->timer);
  8512. bp->timer.expires = jiffies + bp->current_interval;
  8513. bp->timer.data = (unsigned long) bp;
  8514. bp->timer.function = bnx2x_timer;
  8515. bnx2x_dcbx_set_state(bp, true, BNX2X_DCBX_ENABLED_ON_NEG_ON);
  8516. bnx2x_dcbx_init_params(bp);
  8517. #ifdef BCM_CNIC
  8518. if (CHIP_IS_E1x(bp))
  8519. bp->cnic_base_cl_id = FP_SB_MAX_E1x;
  8520. else
  8521. bp->cnic_base_cl_id = FP_SB_MAX_E2;
  8522. #endif
  8523. /* multiple tx priority */
  8524. if (CHIP_IS_E1x(bp))
  8525. bp->max_cos = BNX2X_MULTI_TX_COS_E1X;
  8526. if (CHIP_IS_E2(bp) || CHIP_IS_E3A0(bp))
  8527. bp->max_cos = BNX2X_MULTI_TX_COS_E2_E3A0;
  8528. if (CHIP_IS_E3B0(bp))
  8529. bp->max_cos = BNX2X_MULTI_TX_COS_E3B0;
  8530. return rc;
  8531. }
  8532. /****************************************************************************
  8533. * General service functions
  8534. ****************************************************************************/
  8535. /*
  8536. * net_device service functions
  8537. */
  8538. /* called with rtnl_lock */
  8539. static int bnx2x_open(struct net_device *dev)
  8540. {
  8541. struct bnx2x *bp = netdev_priv(dev);
  8542. bool global = false;
  8543. int other_engine = BP_PATH(bp) ? 0 : 1;
  8544. bool other_load_status, load_status;
  8545. netif_carrier_off(dev);
  8546. bnx2x_set_power_state(bp, PCI_D0);
  8547. other_load_status = bnx2x_get_load_status(bp, other_engine);
  8548. load_status = bnx2x_get_load_status(bp, BP_PATH(bp));
  8549. /*
  8550. * If parity had happen during the unload, then attentions
  8551. * and/or RECOVERY_IN_PROGRES may still be set. In this case we
  8552. * want the first function loaded on the current engine to
  8553. * complete the recovery.
  8554. */
  8555. if (!bnx2x_reset_is_done(bp, BP_PATH(bp)) ||
  8556. bnx2x_chk_parity_attn(bp, &global, true))
  8557. do {
  8558. /*
  8559. * If there are attentions and they are in a global
  8560. * blocks, set the GLOBAL_RESET bit regardless whether
  8561. * it will be this function that will complete the
  8562. * recovery or not.
  8563. */
  8564. if (global)
  8565. bnx2x_set_reset_global(bp);
  8566. /*
  8567. * Only the first function on the current engine should
  8568. * try to recover in open. In case of attentions in
  8569. * global blocks only the first in the chip should try
  8570. * to recover.
  8571. */
  8572. if ((!load_status &&
  8573. (!global || !other_load_status)) &&
  8574. bnx2x_trylock_leader_lock(bp) &&
  8575. !bnx2x_leader_reset(bp)) {
  8576. netdev_info(bp->dev, "Recovered in open\n");
  8577. break;
  8578. }
  8579. /* recovery has failed... */
  8580. bnx2x_set_power_state(bp, PCI_D3hot);
  8581. bp->recovery_state = BNX2X_RECOVERY_FAILED;
  8582. netdev_err(bp->dev, "Recovery flow hasn't been properly"
  8583. " completed yet. Try again later. If u still see this"
  8584. " message after a few retries then power cycle is"
  8585. " required.\n");
  8586. return -EAGAIN;
  8587. } while (0);
  8588. bp->recovery_state = BNX2X_RECOVERY_DONE;
  8589. return bnx2x_nic_load(bp, LOAD_OPEN);
  8590. }
  8591. /* called with rtnl_lock */
  8592. int bnx2x_close(struct net_device *dev)
  8593. {
  8594. struct bnx2x *bp = netdev_priv(dev);
  8595. /* Unload the driver, release IRQs */
  8596. bnx2x_nic_unload(bp, UNLOAD_CLOSE);
  8597. /* Power off */
  8598. bnx2x_set_power_state(bp, PCI_D3hot);
  8599. return 0;
  8600. }
  8601. static inline int bnx2x_init_mcast_macs_list(struct bnx2x *bp,
  8602. struct bnx2x_mcast_ramrod_params *p)
  8603. {
  8604. int mc_count = netdev_mc_count(bp->dev);
  8605. struct bnx2x_mcast_list_elem *mc_mac =
  8606. kzalloc(sizeof(*mc_mac) * mc_count, GFP_ATOMIC);
  8607. struct netdev_hw_addr *ha;
  8608. if (!mc_mac)
  8609. return -ENOMEM;
  8610. INIT_LIST_HEAD(&p->mcast_list);
  8611. netdev_for_each_mc_addr(ha, bp->dev) {
  8612. mc_mac->mac = bnx2x_mc_addr(ha);
  8613. list_add_tail(&mc_mac->link, &p->mcast_list);
  8614. mc_mac++;
  8615. }
  8616. p->mcast_list_len = mc_count;
  8617. return 0;
  8618. }
  8619. static inline void bnx2x_free_mcast_macs_list(
  8620. struct bnx2x_mcast_ramrod_params *p)
  8621. {
  8622. struct bnx2x_mcast_list_elem *mc_mac =
  8623. list_first_entry(&p->mcast_list, struct bnx2x_mcast_list_elem,
  8624. link);
  8625. WARN_ON(!mc_mac);
  8626. kfree(mc_mac);
  8627. }
  8628. /**
  8629. * bnx2x_set_uc_list - configure a new unicast MACs list.
  8630. *
  8631. * @bp: driver handle
  8632. *
  8633. * We will use zero (0) as a MAC type for these MACs.
  8634. */
  8635. static inline int bnx2x_set_uc_list(struct bnx2x *bp)
  8636. {
  8637. int rc;
  8638. struct net_device *dev = bp->dev;
  8639. struct netdev_hw_addr *ha;
  8640. struct bnx2x_vlan_mac_obj *mac_obj = &bp->fp->mac_obj;
  8641. unsigned long ramrod_flags = 0;
  8642. /* First schedule a cleanup up of old configuration */
  8643. rc = bnx2x_del_all_macs(bp, mac_obj, BNX2X_UC_LIST_MAC, false);
  8644. if (rc < 0) {
  8645. BNX2X_ERR("Failed to schedule DELETE operations: %d\n", rc);
  8646. return rc;
  8647. }
  8648. netdev_for_each_uc_addr(ha, dev) {
  8649. rc = bnx2x_set_mac_one(bp, bnx2x_uc_addr(ha), mac_obj, true,
  8650. BNX2X_UC_LIST_MAC, &ramrod_flags);
  8651. if (rc < 0) {
  8652. BNX2X_ERR("Failed to schedule ADD operations: %d\n",
  8653. rc);
  8654. return rc;
  8655. }
  8656. }
  8657. /* Execute the pending commands */
  8658. __set_bit(RAMROD_CONT, &ramrod_flags);
  8659. return bnx2x_set_mac_one(bp, NULL, mac_obj, false /* don't care */,
  8660. BNX2X_UC_LIST_MAC, &ramrod_flags);
  8661. }
  8662. static inline int bnx2x_set_mc_list(struct bnx2x *bp)
  8663. {
  8664. struct net_device *dev = bp->dev;
  8665. struct bnx2x_mcast_ramrod_params rparam = {0};
  8666. int rc = 0;
  8667. rparam.mcast_obj = &bp->mcast_obj;
  8668. /* first, clear all configured multicast MACs */
  8669. rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_DEL);
  8670. if (rc < 0) {
  8671. BNX2X_ERR("Failed to clear multicast "
  8672. "configuration: %d\n", rc);
  8673. return rc;
  8674. }
  8675. /* then, configure a new MACs list */
  8676. if (netdev_mc_count(dev)) {
  8677. rc = bnx2x_init_mcast_macs_list(bp, &rparam);
  8678. if (rc) {
  8679. BNX2X_ERR("Failed to create multicast MACs "
  8680. "list: %d\n", rc);
  8681. return rc;
  8682. }
  8683. /* Now add the new MACs */
  8684. rc = bnx2x_config_mcast(bp, &rparam,
  8685. BNX2X_MCAST_CMD_ADD);
  8686. if (rc < 0)
  8687. BNX2X_ERR("Failed to set a new multicast "
  8688. "configuration: %d\n", rc);
  8689. bnx2x_free_mcast_macs_list(&rparam);
  8690. }
  8691. return rc;
  8692. }
  8693. /* If bp->state is OPEN, should be called with netif_addr_lock_bh() */
  8694. void bnx2x_set_rx_mode(struct net_device *dev)
  8695. {
  8696. struct bnx2x *bp = netdev_priv(dev);
  8697. u32 rx_mode = BNX2X_RX_MODE_NORMAL;
  8698. if (bp->state != BNX2X_STATE_OPEN) {
  8699. DP(NETIF_MSG_IFUP, "state is %x, returning\n", bp->state);
  8700. return;
  8701. }
  8702. DP(NETIF_MSG_IFUP, "dev->flags = %x\n", bp->dev->flags);
  8703. if (dev->flags & IFF_PROMISC)
  8704. rx_mode = BNX2X_RX_MODE_PROMISC;
  8705. else if ((dev->flags & IFF_ALLMULTI) ||
  8706. ((netdev_mc_count(dev) > BNX2X_MAX_MULTICAST) &&
  8707. CHIP_IS_E1(bp)))
  8708. rx_mode = BNX2X_RX_MODE_ALLMULTI;
  8709. else {
  8710. /* some multicasts */
  8711. if (bnx2x_set_mc_list(bp) < 0)
  8712. rx_mode = BNX2X_RX_MODE_ALLMULTI;
  8713. if (bnx2x_set_uc_list(bp) < 0)
  8714. rx_mode = BNX2X_RX_MODE_PROMISC;
  8715. }
  8716. bp->rx_mode = rx_mode;
  8717. #ifdef BCM_CNIC
  8718. /* handle ISCSI SD mode */
  8719. if (IS_MF_ISCSI_SD(bp))
  8720. bp->rx_mode = BNX2X_RX_MODE_NONE;
  8721. #endif
  8722. /* Schedule the rx_mode command */
  8723. if (test_bit(BNX2X_FILTER_RX_MODE_PENDING, &bp->sp_state)) {
  8724. set_bit(BNX2X_FILTER_RX_MODE_SCHED, &bp->sp_state);
  8725. return;
  8726. }
  8727. bnx2x_set_storm_rx_mode(bp);
  8728. }
  8729. /* called with rtnl_lock */
  8730. static int bnx2x_mdio_read(struct net_device *netdev, int prtad,
  8731. int devad, u16 addr)
  8732. {
  8733. struct bnx2x *bp = netdev_priv(netdev);
  8734. u16 value;
  8735. int rc;
  8736. DP(NETIF_MSG_LINK, "mdio_read: prtad 0x%x, devad 0x%x, addr 0x%x\n",
  8737. prtad, devad, addr);
  8738. /* The HW expects different devad if CL22 is used */
  8739. devad = (devad == MDIO_DEVAD_NONE) ? DEFAULT_PHY_DEV_ADDR : devad;
  8740. bnx2x_acquire_phy_lock(bp);
  8741. rc = bnx2x_phy_read(&bp->link_params, prtad, devad, addr, &value);
  8742. bnx2x_release_phy_lock(bp);
  8743. DP(NETIF_MSG_LINK, "mdio_read_val 0x%x rc = 0x%x\n", value, rc);
  8744. if (!rc)
  8745. rc = value;
  8746. return rc;
  8747. }
  8748. /* called with rtnl_lock */
  8749. static int bnx2x_mdio_write(struct net_device *netdev, int prtad, int devad,
  8750. u16 addr, u16 value)
  8751. {
  8752. struct bnx2x *bp = netdev_priv(netdev);
  8753. int rc;
  8754. DP(NETIF_MSG_LINK, "mdio_write: prtad 0x%x, devad 0x%x, addr 0x%x,"
  8755. " value 0x%x\n", prtad, devad, addr, value);
  8756. /* The HW expects different devad if CL22 is used */
  8757. devad = (devad == MDIO_DEVAD_NONE) ? DEFAULT_PHY_DEV_ADDR : devad;
  8758. bnx2x_acquire_phy_lock(bp);
  8759. rc = bnx2x_phy_write(&bp->link_params, prtad, devad, addr, value);
  8760. bnx2x_release_phy_lock(bp);
  8761. return rc;
  8762. }
  8763. /* called with rtnl_lock */
  8764. static int bnx2x_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
  8765. {
  8766. struct bnx2x *bp = netdev_priv(dev);
  8767. struct mii_ioctl_data *mdio = if_mii(ifr);
  8768. DP(NETIF_MSG_LINK, "ioctl: phy id 0x%x, reg 0x%x, val_in 0x%x\n",
  8769. mdio->phy_id, mdio->reg_num, mdio->val_in);
  8770. if (!netif_running(dev))
  8771. return -EAGAIN;
  8772. return mdio_mii_ioctl(&bp->mdio, mdio, cmd);
  8773. }
  8774. #ifdef CONFIG_NET_POLL_CONTROLLER
  8775. static void poll_bnx2x(struct net_device *dev)
  8776. {
  8777. struct bnx2x *bp = netdev_priv(dev);
  8778. disable_irq(bp->pdev->irq);
  8779. bnx2x_interrupt(bp->pdev->irq, dev);
  8780. enable_irq(bp->pdev->irq);
  8781. }
  8782. #endif
  8783. static int bnx2x_validate_addr(struct net_device *dev)
  8784. {
  8785. struct bnx2x *bp = netdev_priv(dev);
  8786. if (!bnx2x_is_valid_ether_addr(bp, dev->dev_addr))
  8787. return -EADDRNOTAVAIL;
  8788. return 0;
  8789. }
  8790. static const struct net_device_ops bnx2x_netdev_ops = {
  8791. .ndo_open = bnx2x_open,
  8792. .ndo_stop = bnx2x_close,
  8793. .ndo_start_xmit = bnx2x_start_xmit,
  8794. .ndo_select_queue = bnx2x_select_queue,
  8795. .ndo_set_rx_mode = bnx2x_set_rx_mode,
  8796. .ndo_set_mac_address = bnx2x_change_mac_addr,
  8797. .ndo_validate_addr = bnx2x_validate_addr,
  8798. .ndo_do_ioctl = bnx2x_ioctl,
  8799. .ndo_change_mtu = bnx2x_change_mtu,
  8800. .ndo_fix_features = bnx2x_fix_features,
  8801. .ndo_set_features = bnx2x_set_features,
  8802. .ndo_tx_timeout = bnx2x_tx_timeout,
  8803. #ifdef CONFIG_NET_POLL_CONTROLLER
  8804. .ndo_poll_controller = poll_bnx2x,
  8805. #endif
  8806. .ndo_setup_tc = bnx2x_setup_tc,
  8807. #if defined(NETDEV_FCOE_WWNN) && defined(BCM_CNIC)
  8808. .ndo_fcoe_get_wwn = bnx2x_fcoe_get_wwn,
  8809. #endif
  8810. };
  8811. static inline int bnx2x_set_coherency_mask(struct bnx2x *bp)
  8812. {
  8813. struct device *dev = &bp->pdev->dev;
  8814. if (dma_set_mask(dev, DMA_BIT_MASK(64)) == 0) {
  8815. bp->flags |= USING_DAC_FLAG;
  8816. if (dma_set_coherent_mask(dev, DMA_BIT_MASK(64)) != 0) {
  8817. dev_err(dev, "dma_set_coherent_mask failed, "
  8818. "aborting\n");
  8819. return -EIO;
  8820. }
  8821. } else if (dma_set_mask(dev, DMA_BIT_MASK(32)) != 0) {
  8822. dev_err(dev, "System does not support DMA, aborting\n");
  8823. return -EIO;
  8824. }
  8825. return 0;
  8826. }
  8827. static int __devinit bnx2x_init_dev(struct pci_dev *pdev,
  8828. struct net_device *dev,
  8829. unsigned long board_type)
  8830. {
  8831. struct bnx2x *bp;
  8832. int rc;
  8833. u32 pci_cfg_dword;
  8834. bool chip_is_e1x = (board_type == BCM57710 ||
  8835. board_type == BCM57711 ||
  8836. board_type == BCM57711E);
  8837. SET_NETDEV_DEV(dev, &pdev->dev);
  8838. bp = netdev_priv(dev);
  8839. bp->dev = dev;
  8840. bp->pdev = pdev;
  8841. bp->flags = 0;
  8842. rc = pci_enable_device(pdev);
  8843. if (rc) {
  8844. dev_err(&bp->pdev->dev,
  8845. "Cannot enable PCI device, aborting\n");
  8846. goto err_out;
  8847. }
  8848. if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
  8849. dev_err(&bp->pdev->dev,
  8850. "Cannot find PCI device base address, aborting\n");
  8851. rc = -ENODEV;
  8852. goto err_out_disable;
  8853. }
  8854. if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
  8855. dev_err(&bp->pdev->dev, "Cannot find second PCI device"
  8856. " base address, aborting\n");
  8857. rc = -ENODEV;
  8858. goto err_out_disable;
  8859. }
  8860. if (atomic_read(&pdev->enable_cnt) == 1) {
  8861. rc = pci_request_regions(pdev, DRV_MODULE_NAME);
  8862. if (rc) {
  8863. dev_err(&bp->pdev->dev,
  8864. "Cannot obtain PCI resources, aborting\n");
  8865. goto err_out_disable;
  8866. }
  8867. pci_set_master(pdev);
  8868. pci_save_state(pdev);
  8869. }
  8870. bp->pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM);
  8871. if (bp->pm_cap == 0) {
  8872. dev_err(&bp->pdev->dev,
  8873. "Cannot find power management capability, aborting\n");
  8874. rc = -EIO;
  8875. goto err_out_release;
  8876. }
  8877. if (!pci_is_pcie(pdev)) {
  8878. dev_err(&bp->pdev->dev, "Not PCI Express, aborting\n");
  8879. rc = -EIO;
  8880. goto err_out_release;
  8881. }
  8882. rc = bnx2x_set_coherency_mask(bp);
  8883. if (rc)
  8884. goto err_out_release;
  8885. dev->mem_start = pci_resource_start(pdev, 0);
  8886. dev->base_addr = dev->mem_start;
  8887. dev->mem_end = pci_resource_end(pdev, 0);
  8888. dev->irq = pdev->irq;
  8889. bp->regview = pci_ioremap_bar(pdev, 0);
  8890. if (!bp->regview) {
  8891. dev_err(&bp->pdev->dev,
  8892. "Cannot map register space, aborting\n");
  8893. rc = -ENOMEM;
  8894. goto err_out_release;
  8895. }
  8896. /* In E1/E1H use pci device function given by kernel.
  8897. * In E2/E3 read physical function from ME register since these chips
  8898. * support Physical Device Assignment where kernel BDF maybe arbitrary
  8899. * (depending on hypervisor).
  8900. */
  8901. if (chip_is_e1x)
  8902. bp->pf_num = PCI_FUNC(pdev->devfn);
  8903. else {/* chip is E2/3*/
  8904. pci_read_config_dword(bp->pdev,
  8905. PCICFG_ME_REGISTER, &pci_cfg_dword);
  8906. bp->pf_num = (u8)((pci_cfg_dword & ME_REG_ABS_PF_NUM) >>
  8907. ME_REG_ABS_PF_NUM_SHIFT);
  8908. }
  8909. DP(BNX2X_MSG_SP, "me reg PF num: %d\n", bp->pf_num);
  8910. bnx2x_set_power_state(bp, PCI_D0);
  8911. /* clean indirect addresses */
  8912. pci_write_config_dword(bp->pdev, PCICFG_GRC_ADDRESS,
  8913. PCICFG_VENDOR_ID_OFFSET);
  8914. /*
  8915. * Clean the following indirect addresses for all functions since it
  8916. * is not used by the driver.
  8917. */
  8918. REG_WR(bp, PXP2_REG_PGL_ADDR_88_F0, 0);
  8919. REG_WR(bp, PXP2_REG_PGL_ADDR_8C_F0, 0);
  8920. REG_WR(bp, PXP2_REG_PGL_ADDR_90_F0, 0);
  8921. REG_WR(bp, PXP2_REG_PGL_ADDR_94_F0, 0);
  8922. if (chip_is_e1x) {
  8923. REG_WR(bp, PXP2_REG_PGL_ADDR_88_F1, 0);
  8924. REG_WR(bp, PXP2_REG_PGL_ADDR_8C_F1, 0);
  8925. REG_WR(bp, PXP2_REG_PGL_ADDR_90_F1, 0);
  8926. REG_WR(bp, PXP2_REG_PGL_ADDR_94_F1, 0);
  8927. }
  8928. /*
  8929. * Enable internal target-read (in case we are probed after PF FLR).
  8930. * Must be done prior to any BAR read access. Only for 57712 and up
  8931. */
  8932. if (!chip_is_e1x)
  8933. REG_WR(bp, PGLUE_B_REG_INTERNAL_PFID_ENABLE_TARGET_READ, 1);
  8934. /* Reset the load counter */
  8935. bnx2x_clear_load_status(bp);
  8936. dev->watchdog_timeo = TX_TIMEOUT;
  8937. dev->netdev_ops = &bnx2x_netdev_ops;
  8938. bnx2x_set_ethtool_ops(dev);
  8939. dev->priv_flags |= IFF_UNICAST_FLT;
  8940. dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
  8941. NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_TSO6 | NETIF_F_LRO |
  8942. NETIF_F_RXCSUM | NETIF_F_RXHASH | NETIF_F_HW_VLAN_TX;
  8943. dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
  8944. NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_TSO6 | NETIF_F_HIGHDMA;
  8945. dev->features |= dev->hw_features | NETIF_F_HW_VLAN_RX;
  8946. if (bp->flags & USING_DAC_FLAG)
  8947. dev->features |= NETIF_F_HIGHDMA;
  8948. /* Add Loopback capability to the device */
  8949. dev->hw_features |= NETIF_F_LOOPBACK;
  8950. #ifdef BCM_DCBNL
  8951. dev->dcbnl_ops = &bnx2x_dcbnl_ops;
  8952. #endif
  8953. /* get_port_hwinfo() will set prtad and mmds properly */
  8954. bp->mdio.prtad = MDIO_PRTAD_NONE;
  8955. bp->mdio.mmds = 0;
  8956. bp->mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22;
  8957. bp->mdio.dev = dev;
  8958. bp->mdio.mdio_read = bnx2x_mdio_read;
  8959. bp->mdio.mdio_write = bnx2x_mdio_write;
  8960. return 0;
  8961. err_out_release:
  8962. if (atomic_read(&pdev->enable_cnt) == 1)
  8963. pci_release_regions(pdev);
  8964. err_out_disable:
  8965. pci_disable_device(pdev);
  8966. pci_set_drvdata(pdev, NULL);
  8967. err_out:
  8968. return rc;
  8969. }
  8970. static void __devinit bnx2x_get_pcie_width_speed(struct bnx2x *bp,
  8971. int *width, int *speed)
  8972. {
  8973. u32 val = REG_RD(bp, PCICFG_OFFSET + PCICFG_LINK_CONTROL);
  8974. *width = (val & PCICFG_LINK_WIDTH) >> PCICFG_LINK_WIDTH_SHIFT;
  8975. /* return value of 1=2.5GHz 2=5GHz */
  8976. *speed = (val & PCICFG_LINK_SPEED) >> PCICFG_LINK_SPEED_SHIFT;
  8977. }
  8978. static int bnx2x_check_firmware(struct bnx2x *bp)
  8979. {
  8980. const struct firmware *firmware = bp->firmware;
  8981. struct bnx2x_fw_file_hdr *fw_hdr;
  8982. struct bnx2x_fw_file_section *sections;
  8983. u32 offset, len, num_ops;
  8984. u16 *ops_offsets;
  8985. int i;
  8986. const u8 *fw_ver;
  8987. if (firmware->size < sizeof(struct bnx2x_fw_file_hdr))
  8988. return -EINVAL;
  8989. fw_hdr = (struct bnx2x_fw_file_hdr *)firmware->data;
  8990. sections = (struct bnx2x_fw_file_section *)fw_hdr;
  8991. /* Make sure none of the offsets and sizes make us read beyond
  8992. * the end of the firmware data */
  8993. for (i = 0; i < sizeof(*fw_hdr) / sizeof(*sections); i++) {
  8994. offset = be32_to_cpu(sections[i].offset);
  8995. len = be32_to_cpu(sections[i].len);
  8996. if (offset + len > firmware->size) {
  8997. dev_err(&bp->pdev->dev,
  8998. "Section %d length is out of bounds\n", i);
  8999. return -EINVAL;
  9000. }
  9001. }
  9002. /* Likewise for the init_ops offsets */
  9003. offset = be32_to_cpu(fw_hdr->init_ops_offsets.offset);
  9004. ops_offsets = (u16 *)(firmware->data + offset);
  9005. num_ops = be32_to_cpu(fw_hdr->init_ops.len) / sizeof(struct raw_op);
  9006. for (i = 0; i < be32_to_cpu(fw_hdr->init_ops_offsets.len) / 2; i++) {
  9007. if (be16_to_cpu(ops_offsets[i]) > num_ops) {
  9008. dev_err(&bp->pdev->dev,
  9009. "Section offset %d is out of bounds\n", i);
  9010. return -EINVAL;
  9011. }
  9012. }
  9013. /* Check FW version */
  9014. offset = be32_to_cpu(fw_hdr->fw_version.offset);
  9015. fw_ver = firmware->data + offset;
  9016. if ((fw_ver[0] != BCM_5710_FW_MAJOR_VERSION) ||
  9017. (fw_ver[1] != BCM_5710_FW_MINOR_VERSION) ||
  9018. (fw_ver[2] != BCM_5710_FW_REVISION_VERSION) ||
  9019. (fw_ver[3] != BCM_5710_FW_ENGINEERING_VERSION)) {
  9020. dev_err(&bp->pdev->dev,
  9021. "Bad FW version:%d.%d.%d.%d. Should be %d.%d.%d.%d\n",
  9022. fw_ver[0], fw_ver[1], fw_ver[2],
  9023. fw_ver[3], BCM_5710_FW_MAJOR_VERSION,
  9024. BCM_5710_FW_MINOR_VERSION,
  9025. BCM_5710_FW_REVISION_VERSION,
  9026. BCM_5710_FW_ENGINEERING_VERSION);
  9027. return -EINVAL;
  9028. }
  9029. return 0;
  9030. }
  9031. static inline void be32_to_cpu_n(const u8 *_source, u8 *_target, u32 n)
  9032. {
  9033. const __be32 *source = (const __be32 *)_source;
  9034. u32 *target = (u32 *)_target;
  9035. u32 i;
  9036. for (i = 0; i < n/4; i++)
  9037. target[i] = be32_to_cpu(source[i]);
  9038. }
  9039. /*
  9040. Ops array is stored in the following format:
  9041. {op(8bit), offset(24bit, big endian), data(32bit, big endian)}
  9042. */
  9043. static inline void bnx2x_prep_ops(const u8 *_source, u8 *_target, u32 n)
  9044. {
  9045. const __be32 *source = (const __be32 *)_source;
  9046. struct raw_op *target = (struct raw_op *)_target;
  9047. u32 i, j, tmp;
  9048. for (i = 0, j = 0; i < n/8; i++, j += 2) {
  9049. tmp = be32_to_cpu(source[j]);
  9050. target[i].op = (tmp >> 24) & 0xff;
  9051. target[i].offset = tmp & 0xffffff;
  9052. target[i].raw_data = be32_to_cpu(source[j + 1]);
  9053. }
  9054. }
  9055. /**
  9056. * IRO array is stored in the following format:
  9057. * {base(24bit), m1(16bit), m2(16bit), m3(16bit), size(16bit) }
  9058. */
  9059. static inline void bnx2x_prep_iro(const u8 *_source, u8 *_target, u32 n)
  9060. {
  9061. const __be32 *source = (const __be32 *)_source;
  9062. struct iro *target = (struct iro *)_target;
  9063. u32 i, j, tmp;
  9064. for (i = 0, j = 0; i < n/sizeof(struct iro); i++) {
  9065. target[i].base = be32_to_cpu(source[j]);
  9066. j++;
  9067. tmp = be32_to_cpu(source[j]);
  9068. target[i].m1 = (tmp >> 16) & 0xffff;
  9069. target[i].m2 = tmp & 0xffff;
  9070. j++;
  9071. tmp = be32_to_cpu(source[j]);
  9072. target[i].m3 = (tmp >> 16) & 0xffff;
  9073. target[i].size = tmp & 0xffff;
  9074. j++;
  9075. }
  9076. }
  9077. static inline void be16_to_cpu_n(const u8 *_source, u8 *_target, u32 n)
  9078. {
  9079. const __be16 *source = (const __be16 *)_source;
  9080. u16 *target = (u16 *)_target;
  9081. u32 i;
  9082. for (i = 0; i < n/2; i++)
  9083. target[i] = be16_to_cpu(source[i]);
  9084. }
  9085. #define BNX2X_ALLOC_AND_SET(arr, lbl, func) \
  9086. do { \
  9087. u32 len = be32_to_cpu(fw_hdr->arr.len); \
  9088. bp->arr = kmalloc(len, GFP_KERNEL); \
  9089. if (!bp->arr) { \
  9090. pr_err("Failed to allocate %d bytes for "#arr"\n", len); \
  9091. goto lbl; \
  9092. } \
  9093. func(bp->firmware->data + be32_to_cpu(fw_hdr->arr.offset), \
  9094. (u8 *)bp->arr, len); \
  9095. } while (0)
  9096. int bnx2x_init_firmware(struct bnx2x *bp)
  9097. {
  9098. struct bnx2x_fw_file_hdr *fw_hdr;
  9099. int rc;
  9100. if (!bp->firmware) {
  9101. const char *fw_file_name;
  9102. if (CHIP_IS_E1(bp))
  9103. fw_file_name = FW_FILE_NAME_E1;
  9104. else if (CHIP_IS_E1H(bp))
  9105. fw_file_name = FW_FILE_NAME_E1H;
  9106. else if (!CHIP_IS_E1x(bp))
  9107. fw_file_name = FW_FILE_NAME_E2;
  9108. else {
  9109. BNX2X_ERR("Unsupported chip revision\n");
  9110. return -EINVAL;
  9111. }
  9112. BNX2X_DEV_INFO("Loading %s\n", fw_file_name);
  9113. rc = request_firmware(&bp->firmware, fw_file_name,
  9114. &bp->pdev->dev);
  9115. if (rc) {
  9116. BNX2X_ERR("Can't load firmware file %s\n",
  9117. fw_file_name);
  9118. goto request_firmware_exit;
  9119. }
  9120. rc = bnx2x_check_firmware(bp);
  9121. if (rc) {
  9122. BNX2X_ERR("Corrupt firmware file %s\n", fw_file_name);
  9123. goto request_firmware_exit;
  9124. }
  9125. }
  9126. fw_hdr = (struct bnx2x_fw_file_hdr *)bp->firmware->data;
  9127. /* Initialize the pointers to the init arrays */
  9128. /* Blob */
  9129. BNX2X_ALLOC_AND_SET(init_data, request_firmware_exit, be32_to_cpu_n);
  9130. /* Opcodes */
  9131. BNX2X_ALLOC_AND_SET(init_ops, init_ops_alloc_err, bnx2x_prep_ops);
  9132. /* Offsets */
  9133. BNX2X_ALLOC_AND_SET(init_ops_offsets, init_offsets_alloc_err,
  9134. be16_to_cpu_n);
  9135. /* STORMs firmware */
  9136. INIT_TSEM_INT_TABLE_DATA(bp) = bp->firmware->data +
  9137. be32_to_cpu(fw_hdr->tsem_int_table_data.offset);
  9138. INIT_TSEM_PRAM_DATA(bp) = bp->firmware->data +
  9139. be32_to_cpu(fw_hdr->tsem_pram_data.offset);
  9140. INIT_USEM_INT_TABLE_DATA(bp) = bp->firmware->data +
  9141. be32_to_cpu(fw_hdr->usem_int_table_data.offset);
  9142. INIT_USEM_PRAM_DATA(bp) = bp->firmware->data +
  9143. be32_to_cpu(fw_hdr->usem_pram_data.offset);
  9144. INIT_XSEM_INT_TABLE_DATA(bp) = bp->firmware->data +
  9145. be32_to_cpu(fw_hdr->xsem_int_table_data.offset);
  9146. INIT_XSEM_PRAM_DATA(bp) = bp->firmware->data +
  9147. be32_to_cpu(fw_hdr->xsem_pram_data.offset);
  9148. INIT_CSEM_INT_TABLE_DATA(bp) = bp->firmware->data +
  9149. be32_to_cpu(fw_hdr->csem_int_table_data.offset);
  9150. INIT_CSEM_PRAM_DATA(bp) = bp->firmware->data +
  9151. be32_to_cpu(fw_hdr->csem_pram_data.offset);
  9152. /* IRO */
  9153. BNX2X_ALLOC_AND_SET(iro_arr, iro_alloc_err, bnx2x_prep_iro);
  9154. return 0;
  9155. iro_alloc_err:
  9156. kfree(bp->init_ops_offsets);
  9157. init_offsets_alloc_err:
  9158. kfree(bp->init_ops);
  9159. init_ops_alloc_err:
  9160. kfree(bp->init_data);
  9161. request_firmware_exit:
  9162. release_firmware(bp->firmware);
  9163. return rc;
  9164. }
  9165. static void bnx2x_release_firmware(struct bnx2x *bp)
  9166. {
  9167. kfree(bp->init_ops_offsets);
  9168. kfree(bp->init_ops);
  9169. kfree(bp->init_data);
  9170. release_firmware(bp->firmware);
  9171. bp->firmware = NULL;
  9172. }
  9173. static struct bnx2x_func_sp_drv_ops bnx2x_func_sp_drv = {
  9174. .init_hw_cmn_chip = bnx2x_init_hw_common_chip,
  9175. .init_hw_cmn = bnx2x_init_hw_common,
  9176. .init_hw_port = bnx2x_init_hw_port,
  9177. .init_hw_func = bnx2x_init_hw_func,
  9178. .reset_hw_cmn = bnx2x_reset_common,
  9179. .reset_hw_port = bnx2x_reset_port,
  9180. .reset_hw_func = bnx2x_reset_func,
  9181. .gunzip_init = bnx2x_gunzip_init,
  9182. .gunzip_end = bnx2x_gunzip_end,
  9183. .init_fw = bnx2x_init_firmware,
  9184. .release_fw = bnx2x_release_firmware,
  9185. };
  9186. void bnx2x__init_func_obj(struct bnx2x *bp)
  9187. {
  9188. /* Prepare DMAE related driver resources */
  9189. bnx2x_setup_dmae(bp);
  9190. bnx2x_init_func_obj(bp, &bp->func_obj,
  9191. bnx2x_sp(bp, func_rdata),
  9192. bnx2x_sp_mapping(bp, func_rdata),
  9193. &bnx2x_func_sp_drv);
  9194. }
  9195. /* must be called after sriov-enable */
  9196. static inline int bnx2x_set_qm_cid_count(struct bnx2x *bp)
  9197. {
  9198. int cid_count = BNX2X_L2_CID_COUNT(bp);
  9199. #ifdef BCM_CNIC
  9200. cid_count += CNIC_CID_MAX;
  9201. #endif
  9202. return roundup(cid_count, QM_CID_ROUND);
  9203. }
  9204. /**
  9205. * bnx2x_get_num_none_def_sbs - return the number of none default SBs
  9206. *
  9207. * @dev: pci device
  9208. *
  9209. */
  9210. static inline int bnx2x_get_num_non_def_sbs(struct pci_dev *pdev)
  9211. {
  9212. int pos;
  9213. u16 control;
  9214. pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
  9215. /*
  9216. * If MSI-X is not supported - return number of SBs needed to support
  9217. * one fast path queue: one FP queue + SB for CNIC
  9218. */
  9219. if (!pos)
  9220. return 1 + CNIC_PRESENT;
  9221. /*
  9222. * The value in the PCI configuration space is the index of the last
  9223. * entry, namely one less than the actual size of the table, which is
  9224. * exactly what we want to return from this function: number of all SBs
  9225. * without the default SB.
  9226. */
  9227. pci_read_config_word(pdev, pos + PCI_MSI_FLAGS, &control);
  9228. return control & PCI_MSIX_FLAGS_QSIZE;
  9229. }
  9230. static int __devinit bnx2x_init_one(struct pci_dev *pdev,
  9231. const struct pci_device_id *ent)
  9232. {
  9233. struct net_device *dev = NULL;
  9234. struct bnx2x *bp;
  9235. int pcie_width, pcie_speed;
  9236. int rc, max_non_def_sbs;
  9237. int rx_count, tx_count, rss_count;
  9238. /*
  9239. * An estimated maximum supported CoS number according to the chip
  9240. * version.
  9241. * We will try to roughly estimate the maximum number of CoSes this chip
  9242. * may support in order to minimize the memory allocated for Tx
  9243. * netdev_queue's. This number will be accurately calculated during the
  9244. * initialization of bp->max_cos based on the chip versions AND chip
  9245. * revision in the bnx2x_init_bp().
  9246. */
  9247. u8 max_cos_est = 0;
  9248. switch (ent->driver_data) {
  9249. case BCM57710:
  9250. case BCM57711:
  9251. case BCM57711E:
  9252. max_cos_est = BNX2X_MULTI_TX_COS_E1X;
  9253. break;
  9254. case BCM57712:
  9255. case BCM57712_MF:
  9256. max_cos_est = BNX2X_MULTI_TX_COS_E2_E3A0;
  9257. break;
  9258. case BCM57800:
  9259. case BCM57800_MF:
  9260. case BCM57810:
  9261. case BCM57810_MF:
  9262. case BCM57840:
  9263. case BCM57840_MF:
  9264. max_cos_est = BNX2X_MULTI_TX_COS_E3B0;
  9265. break;
  9266. default:
  9267. pr_err("Unknown board_type (%ld), aborting\n",
  9268. ent->driver_data);
  9269. return -ENODEV;
  9270. }
  9271. max_non_def_sbs = bnx2x_get_num_non_def_sbs(pdev);
  9272. /* !!! FIXME !!!
  9273. * Do not allow the maximum SB count to grow above 16
  9274. * since Special CIDs starts from 16*BNX2X_MULTI_TX_COS=48.
  9275. * We will use the FP_SB_MAX_E1x macro for this matter.
  9276. */
  9277. max_non_def_sbs = min_t(int, FP_SB_MAX_E1x, max_non_def_sbs);
  9278. WARN_ON(!max_non_def_sbs);
  9279. /* Maximum number of RSS queues: one IGU SB goes to CNIC */
  9280. rss_count = max_non_def_sbs - CNIC_PRESENT;
  9281. /* Maximum number of netdev Rx queues: RSS + FCoE L2 */
  9282. rx_count = rss_count + FCOE_PRESENT;
  9283. /*
  9284. * Maximum number of netdev Tx queues:
  9285. * Maximum TSS queues * Maximum supported number of CoS + FCoE L2
  9286. */
  9287. tx_count = MAX_TXQS_PER_COS * max_cos_est + FCOE_PRESENT;
  9288. /* dev zeroed in init_etherdev */
  9289. dev = alloc_etherdev_mqs(sizeof(*bp), tx_count, rx_count);
  9290. if (!dev) {
  9291. dev_err(&pdev->dev, "Cannot allocate net device\n");
  9292. return -ENOMEM;
  9293. }
  9294. bp = netdev_priv(dev);
  9295. DP(NETIF_MSG_DRV, "Allocated netdev with %d tx and %d rx queues\n",
  9296. tx_count, rx_count);
  9297. bp->igu_sb_cnt = max_non_def_sbs;
  9298. bp->msg_enable = debug;
  9299. pci_set_drvdata(pdev, dev);
  9300. rc = bnx2x_init_dev(pdev, dev, ent->driver_data);
  9301. if (rc < 0) {
  9302. free_netdev(dev);
  9303. return rc;
  9304. }
  9305. DP(NETIF_MSG_DRV, "max_non_def_sbs %d\n", max_non_def_sbs);
  9306. rc = bnx2x_init_bp(bp);
  9307. if (rc)
  9308. goto init_one_exit;
  9309. /*
  9310. * Map doorbels here as we need the real value of bp->max_cos which
  9311. * is initialized in bnx2x_init_bp().
  9312. */
  9313. bp->doorbells = ioremap_nocache(pci_resource_start(pdev, 2),
  9314. min_t(u64, BNX2X_DB_SIZE(bp),
  9315. pci_resource_len(pdev, 2)));
  9316. if (!bp->doorbells) {
  9317. dev_err(&bp->pdev->dev,
  9318. "Cannot map doorbell space, aborting\n");
  9319. rc = -ENOMEM;
  9320. goto init_one_exit;
  9321. }
  9322. /* calc qm_cid_count */
  9323. bp->qm_cid_count = bnx2x_set_qm_cid_count(bp);
  9324. #ifdef BCM_CNIC
  9325. /* disable FCOE L2 queue for E1x */
  9326. if (CHIP_IS_E1x(bp))
  9327. bp->flags |= NO_FCOE_FLAG;
  9328. #endif
  9329. /* Configure interrupt mode: try to enable MSI-X/MSI if
  9330. * needed, set bp->num_queues appropriately.
  9331. */
  9332. bnx2x_set_int_mode(bp);
  9333. /* Add all NAPI objects */
  9334. bnx2x_add_all_napi(bp);
  9335. rc = register_netdev(dev);
  9336. if (rc) {
  9337. dev_err(&pdev->dev, "Cannot register net device\n");
  9338. goto init_one_exit;
  9339. }
  9340. #ifdef BCM_CNIC
  9341. if (!NO_FCOE(bp)) {
  9342. /* Add storage MAC address */
  9343. rtnl_lock();
  9344. dev_addr_add(bp->dev, bp->fip_mac, NETDEV_HW_ADDR_T_SAN);
  9345. rtnl_unlock();
  9346. }
  9347. #endif
  9348. bnx2x_get_pcie_width_speed(bp, &pcie_width, &pcie_speed);
  9349. netdev_info(dev, "%s (%c%d) PCI-E x%d %s found at mem %lx, IRQ %d, node addr %pM\n",
  9350. board_info[ent->driver_data].name,
  9351. (CHIP_REV(bp) >> 12) + 'A', (CHIP_METAL(bp) >> 4),
  9352. pcie_width,
  9353. ((!CHIP_IS_E2(bp) && pcie_speed == 2) ||
  9354. (CHIP_IS_E2(bp) && pcie_speed == 1)) ?
  9355. "5GHz (Gen2)" : "2.5GHz",
  9356. dev->base_addr, bp->pdev->irq, dev->dev_addr);
  9357. return 0;
  9358. init_one_exit:
  9359. if (bp->regview)
  9360. iounmap(bp->regview);
  9361. if (bp->doorbells)
  9362. iounmap(bp->doorbells);
  9363. free_netdev(dev);
  9364. if (atomic_read(&pdev->enable_cnt) == 1)
  9365. pci_release_regions(pdev);
  9366. pci_disable_device(pdev);
  9367. pci_set_drvdata(pdev, NULL);
  9368. return rc;
  9369. }
  9370. static void __devexit bnx2x_remove_one(struct pci_dev *pdev)
  9371. {
  9372. struct net_device *dev = pci_get_drvdata(pdev);
  9373. struct bnx2x *bp;
  9374. if (!dev) {
  9375. dev_err(&pdev->dev, "BAD net device from bnx2x_init_one\n");
  9376. return;
  9377. }
  9378. bp = netdev_priv(dev);
  9379. #ifdef BCM_CNIC
  9380. /* Delete storage MAC address */
  9381. if (!NO_FCOE(bp)) {
  9382. rtnl_lock();
  9383. dev_addr_del(bp->dev, bp->fip_mac, NETDEV_HW_ADDR_T_SAN);
  9384. rtnl_unlock();
  9385. }
  9386. #endif
  9387. #ifdef BCM_DCBNL
  9388. /* Delete app tlvs from dcbnl */
  9389. bnx2x_dcbnl_update_applist(bp, true);
  9390. #endif
  9391. unregister_netdev(dev);
  9392. /* Delete all NAPI objects */
  9393. bnx2x_del_all_napi(bp);
  9394. /* Power on: we can't let PCI layer write to us while we are in D3 */
  9395. bnx2x_set_power_state(bp, PCI_D0);
  9396. /* Disable MSI/MSI-X */
  9397. bnx2x_disable_msi(bp);
  9398. /* Power off */
  9399. bnx2x_set_power_state(bp, PCI_D3hot);
  9400. /* Make sure RESET task is not scheduled before continuing */
  9401. cancel_delayed_work_sync(&bp->sp_rtnl_task);
  9402. if (bp->regview)
  9403. iounmap(bp->regview);
  9404. if (bp->doorbells)
  9405. iounmap(bp->doorbells);
  9406. bnx2x_release_firmware(bp);
  9407. bnx2x_free_mem_bp(bp);
  9408. free_netdev(dev);
  9409. if (atomic_read(&pdev->enable_cnt) == 1)
  9410. pci_release_regions(pdev);
  9411. pci_disable_device(pdev);
  9412. pci_set_drvdata(pdev, NULL);
  9413. }
  9414. static int bnx2x_eeh_nic_unload(struct bnx2x *bp)
  9415. {
  9416. int i;
  9417. bp->state = BNX2X_STATE_ERROR;
  9418. bp->rx_mode = BNX2X_RX_MODE_NONE;
  9419. #ifdef BCM_CNIC
  9420. bnx2x_cnic_notify(bp, CNIC_CTL_STOP_CMD);
  9421. #endif
  9422. /* Stop Tx */
  9423. bnx2x_tx_disable(bp);
  9424. bnx2x_netif_stop(bp, 0);
  9425. del_timer_sync(&bp->timer);
  9426. bnx2x_stats_handle(bp, STATS_EVENT_STOP);
  9427. /* Release IRQs */
  9428. bnx2x_free_irq(bp);
  9429. /* Free SKBs, SGEs, TPA pool and driver internals */
  9430. bnx2x_free_skbs(bp);
  9431. for_each_rx_queue(bp, i)
  9432. bnx2x_free_rx_sge_range(bp, bp->fp + i, NUM_RX_SGE);
  9433. bnx2x_free_mem(bp);
  9434. bp->state = BNX2X_STATE_CLOSED;
  9435. netif_carrier_off(bp->dev);
  9436. return 0;
  9437. }
  9438. static void bnx2x_eeh_recover(struct bnx2x *bp)
  9439. {
  9440. u32 val;
  9441. mutex_init(&bp->port.phy_mutex);
  9442. bp->common.shmem_base = REG_RD(bp, MISC_REG_SHARED_MEM_ADDR);
  9443. bp->link_params.shmem_base = bp->common.shmem_base;
  9444. BNX2X_DEV_INFO("shmem offset is 0x%x\n", bp->common.shmem_base);
  9445. if (!bp->common.shmem_base ||
  9446. (bp->common.shmem_base < 0xA0000) ||
  9447. (bp->common.shmem_base >= 0xC0000)) {
  9448. BNX2X_DEV_INFO("MCP not active\n");
  9449. bp->flags |= NO_MCP_FLAG;
  9450. return;
  9451. }
  9452. val = SHMEM_RD(bp, validity_map[BP_PORT(bp)]);
  9453. if ((val & (SHR_MEM_VALIDITY_DEV_INFO | SHR_MEM_VALIDITY_MB))
  9454. != (SHR_MEM_VALIDITY_DEV_INFO | SHR_MEM_VALIDITY_MB))
  9455. BNX2X_ERR("BAD MCP validity signature\n");
  9456. }
  9457. /**
  9458. * bnx2x_io_error_detected - called when PCI error is detected
  9459. * @pdev: Pointer to PCI device
  9460. * @state: The current pci connection state
  9461. *
  9462. * This function is called after a PCI bus error affecting
  9463. * this device has been detected.
  9464. */
  9465. static pci_ers_result_t bnx2x_io_error_detected(struct pci_dev *pdev,
  9466. pci_channel_state_t state)
  9467. {
  9468. struct net_device *dev = pci_get_drvdata(pdev);
  9469. struct bnx2x *bp = netdev_priv(dev);
  9470. rtnl_lock();
  9471. netif_device_detach(dev);
  9472. if (state == pci_channel_io_perm_failure) {
  9473. rtnl_unlock();
  9474. return PCI_ERS_RESULT_DISCONNECT;
  9475. }
  9476. if (netif_running(dev))
  9477. bnx2x_eeh_nic_unload(bp);
  9478. pci_disable_device(pdev);
  9479. rtnl_unlock();
  9480. /* Request a slot reset */
  9481. return PCI_ERS_RESULT_NEED_RESET;
  9482. }
  9483. /**
  9484. * bnx2x_io_slot_reset - called after the PCI bus has been reset
  9485. * @pdev: Pointer to PCI device
  9486. *
  9487. * Restart the card from scratch, as if from a cold-boot.
  9488. */
  9489. static pci_ers_result_t bnx2x_io_slot_reset(struct pci_dev *pdev)
  9490. {
  9491. struct net_device *dev = pci_get_drvdata(pdev);
  9492. struct bnx2x *bp = netdev_priv(dev);
  9493. rtnl_lock();
  9494. if (pci_enable_device(pdev)) {
  9495. dev_err(&pdev->dev,
  9496. "Cannot re-enable PCI device after reset\n");
  9497. rtnl_unlock();
  9498. return PCI_ERS_RESULT_DISCONNECT;
  9499. }
  9500. pci_set_master(pdev);
  9501. pci_restore_state(pdev);
  9502. if (netif_running(dev))
  9503. bnx2x_set_power_state(bp, PCI_D0);
  9504. rtnl_unlock();
  9505. return PCI_ERS_RESULT_RECOVERED;
  9506. }
  9507. /**
  9508. * bnx2x_io_resume - called when traffic can start flowing again
  9509. * @pdev: Pointer to PCI device
  9510. *
  9511. * This callback is called when the error recovery driver tells us that
  9512. * its OK to resume normal operation.
  9513. */
  9514. static void bnx2x_io_resume(struct pci_dev *pdev)
  9515. {
  9516. struct net_device *dev = pci_get_drvdata(pdev);
  9517. struct bnx2x *bp = netdev_priv(dev);
  9518. if (bp->recovery_state != BNX2X_RECOVERY_DONE) {
  9519. netdev_err(bp->dev, "Handling parity error recovery. "
  9520. "Try again later\n");
  9521. return;
  9522. }
  9523. rtnl_lock();
  9524. bnx2x_eeh_recover(bp);
  9525. if (netif_running(dev))
  9526. bnx2x_nic_load(bp, LOAD_NORMAL);
  9527. netif_device_attach(dev);
  9528. rtnl_unlock();
  9529. }
  9530. static struct pci_error_handlers bnx2x_err_handler = {
  9531. .error_detected = bnx2x_io_error_detected,
  9532. .slot_reset = bnx2x_io_slot_reset,
  9533. .resume = bnx2x_io_resume,
  9534. };
  9535. static struct pci_driver bnx2x_pci_driver = {
  9536. .name = DRV_MODULE_NAME,
  9537. .id_table = bnx2x_pci_tbl,
  9538. .probe = bnx2x_init_one,
  9539. .remove = __devexit_p(bnx2x_remove_one),
  9540. .suspend = bnx2x_suspend,
  9541. .resume = bnx2x_resume,
  9542. .err_handler = &bnx2x_err_handler,
  9543. };
  9544. static int __init bnx2x_init(void)
  9545. {
  9546. int ret;
  9547. pr_info("%s", version);
  9548. bnx2x_wq = create_singlethread_workqueue("bnx2x");
  9549. if (bnx2x_wq == NULL) {
  9550. pr_err("Cannot create workqueue\n");
  9551. return -ENOMEM;
  9552. }
  9553. ret = pci_register_driver(&bnx2x_pci_driver);
  9554. if (ret) {
  9555. pr_err("Cannot register driver\n");
  9556. destroy_workqueue(bnx2x_wq);
  9557. }
  9558. return ret;
  9559. }
  9560. static void __exit bnx2x_cleanup(void)
  9561. {
  9562. pci_unregister_driver(&bnx2x_pci_driver);
  9563. destroy_workqueue(bnx2x_wq);
  9564. }
  9565. void bnx2x_notify_link_changed(struct bnx2x *bp)
  9566. {
  9567. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_12 + BP_FUNC(bp)*sizeof(u32), 1);
  9568. }
  9569. module_init(bnx2x_init);
  9570. module_exit(bnx2x_cleanup);
  9571. #ifdef BCM_CNIC
  9572. /**
  9573. * bnx2x_set_iscsi_eth_mac_addr - set iSCSI MAC(s).
  9574. *
  9575. * @bp: driver handle
  9576. * @set: set or clear the CAM entry
  9577. *
  9578. * This function will wait until the ramdord completion returns.
  9579. * Return 0 if success, -ENODEV if ramrod doesn't return.
  9580. */
  9581. static inline int bnx2x_set_iscsi_eth_mac_addr(struct bnx2x *bp)
  9582. {
  9583. unsigned long ramrod_flags = 0;
  9584. __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
  9585. return bnx2x_set_mac_one(bp, bp->cnic_eth_dev.iscsi_mac,
  9586. &bp->iscsi_l2_mac_obj, true,
  9587. BNX2X_ISCSI_ETH_MAC, &ramrod_flags);
  9588. }
  9589. /* count denotes the number of new completions we have seen */
  9590. static void bnx2x_cnic_sp_post(struct bnx2x *bp, int count)
  9591. {
  9592. struct eth_spe *spe;
  9593. #ifdef BNX2X_STOP_ON_ERROR
  9594. if (unlikely(bp->panic))
  9595. return;
  9596. #endif
  9597. spin_lock_bh(&bp->spq_lock);
  9598. BUG_ON(bp->cnic_spq_pending < count);
  9599. bp->cnic_spq_pending -= count;
  9600. for (; bp->cnic_kwq_pending; bp->cnic_kwq_pending--) {
  9601. u16 type = (le16_to_cpu(bp->cnic_kwq_cons->hdr.type)
  9602. & SPE_HDR_CONN_TYPE) >>
  9603. SPE_HDR_CONN_TYPE_SHIFT;
  9604. u8 cmd = (le32_to_cpu(bp->cnic_kwq_cons->hdr.conn_and_cmd_data)
  9605. >> SPE_HDR_CMD_ID_SHIFT) & 0xff;
  9606. /* Set validation for iSCSI L2 client before sending SETUP
  9607. * ramrod
  9608. */
  9609. if (type == ETH_CONNECTION_TYPE) {
  9610. if (cmd == RAMROD_CMD_ID_ETH_CLIENT_SETUP)
  9611. bnx2x_set_ctx_validation(bp, &bp->context.
  9612. vcxt[BNX2X_ISCSI_ETH_CID].eth,
  9613. BNX2X_ISCSI_ETH_CID);
  9614. }
  9615. /*
  9616. * There may be not more than 8 L2, not more than 8 L5 SPEs
  9617. * and in the air. We also check that number of outstanding
  9618. * COMMON ramrods is not more than the EQ and SPQ can
  9619. * accommodate.
  9620. */
  9621. if (type == ETH_CONNECTION_TYPE) {
  9622. if (!atomic_read(&bp->cq_spq_left))
  9623. break;
  9624. else
  9625. atomic_dec(&bp->cq_spq_left);
  9626. } else if (type == NONE_CONNECTION_TYPE) {
  9627. if (!atomic_read(&bp->eq_spq_left))
  9628. break;
  9629. else
  9630. atomic_dec(&bp->eq_spq_left);
  9631. } else if ((type == ISCSI_CONNECTION_TYPE) ||
  9632. (type == FCOE_CONNECTION_TYPE)) {
  9633. if (bp->cnic_spq_pending >=
  9634. bp->cnic_eth_dev.max_kwqe_pending)
  9635. break;
  9636. else
  9637. bp->cnic_spq_pending++;
  9638. } else {
  9639. BNX2X_ERR("Unknown SPE type: %d\n", type);
  9640. bnx2x_panic();
  9641. break;
  9642. }
  9643. spe = bnx2x_sp_get_next(bp);
  9644. *spe = *bp->cnic_kwq_cons;
  9645. DP(NETIF_MSG_TIMER, "pending on SPQ %d, on KWQ %d count %d\n",
  9646. bp->cnic_spq_pending, bp->cnic_kwq_pending, count);
  9647. if (bp->cnic_kwq_cons == bp->cnic_kwq_last)
  9648. bp->cnic_kwq_cons = bp->cnic_kwq;
  9649. else
  9650. bp->cnic_kwq_cons++;
  9651. }
  9652. bnx2x_sp_prod_update(bp);
  9653. spin_unlock_bh(&bp->spq_lock);
  9654. }
  9655. static int bnx2x_cnic_sp_queue(struct net_device *dev,
  9656. struct kwqe_16 *kwqes[], u32 count)
  9657. {
  9658. struct bnx2x *bp = netdev_priv(dev);
  9659. int i;
  9660. #ifdef BNX2X_STOP_ON_ERROR
  9661. if (unlikely(bp->panic))
  9662. return -EIO;
  9663. #endif
  9664. if ((bp->recovery_state != BNX2X_RECOVERY_DONE) &&
  9665. (bp->recovery_state != BNX2X_RECOVERY_NIC_LOADING)) {
  9666. netdev_err(dev, "Handling parity error recovery. Try again "
  9667. "later\n");
  9668. return -EAGAIN;
  9669. }
  9670. spin_lock_bh(&bp->spq_lock);
  9671. for (i = 0; i < count; i++) {
  9672. struct eth_spe *spe = (struct eth_spe *)kwqes[i];
  9673. if (bp->cnic_kwq_pending == MAX_SP_DESC_CNT)
  9674. break;
  9675. *bp->cnic_kwq_prod = *spe;
  9676. bp->cnic_kwq_pending++;
  9677. DP(NETIF_MSG_TIMER, "L5 SPQE %x %x %x:%x pos %d\n",
  9678. spe->hdr.conn_and_cmd_data, spe->hdr.type,
  9679. spe->data.update_data_addr.hi,
  9680. spe->data.update_data_addr.lo,
  9681. bp->cnic_kwq_pending);
  9682. if (bp->cnic_kwq_prod == bp->cnic_kwq_last)
  9683. bp->cnic_kwq_prod = bp->cnic_kwq;
  9684. else
  9685. bp->cnic_kwq_prod++;
  9686. }
  9687. spin_unlock_bh(&bp->spq_lock);
  9688. if (bp->cnic_spq_pending < bp->cnic_eth_dev.max_kwqe_pending)
  9689. bnx2x_cnic_sp_post(bp, 0);
  9690. return i;
  9691. }
  9692. static int bnx2x_cnic_ctl_send(struct bnx2x *bp, struct cnic_ctl_info *ctl)
  9693. {
  9694. struct cnic_ops *c_ops;
  9695. int rc = 0;
  9696. mutex_lock(&bp->cnic_mutex);
  9697. c_ops = rcu_dereference_protected(bp->cnic_ops,
  9698. lockdep_is_held(&bp->cnic_mutex));
  9699. if (c_ops)
  9700. rc = c_ops->cnic_ctl(bp->cnic_data, ctl);
  9701. mutex_unlock(&bp->cnic_mutex);
  9702. return rc;
  9703. }
  9704. static int bnx2x_cnic_ctl_send_bh(struct bnx2x *bp, struct cnic_ctl_info *ctl)
  9705. {
  9706. struct cnic_ops *c_ops;
  9707. int rc = 0;
  9708. rcu_read_lock();
  9709. c_ops = rcu_dereference(bp->cnic_ops);
  9710. if (c_ops)
  9711. rc = c_ops->cnic_ctl(bp->cnic_data, ctl);
  9712. rcu_read_unlock();
  9713. return rc;
  9714. }
  9715. /*
  9716. * for commands that have no data
  9717. */
  9718. int bnx2x_cnic_notify(struct bnx2x *bp, int cmd)
  9719. {
  9720. struct cnic_ctl_info ctl = {0};
  9721. ctl.cmd = cmd;
  9722. return bnx2x_cnic_ctl_send(bp, &ctl);
  9723. }
  9724. static void bnx2x_cnic_cfc_comp(struct bnx2x *bp, int cid, u8 err)
  9725. {
  9726. struct cnic_ctl_info ctl = {0};
  9727. /* first we tell CNIC and only then we count this as a completion */
  9728. ctl.cmd = CNIC_CTL_COMPLETION_CMD;
  9729. ctl.data.comp.cid = cid;
  9730. ctl.data.comp.error = err;
  9731. bnx2x_cnic_ctl_send_bh(bp, &ctl);
  9732. bnx2x_cnic_sp_post(bp, 0);
  9733. }
  9734. /* Called with netif_addr_lock_bh() taken.
  9735. * Sets an rx_mode config for an iSCSI ETH client.
  9736. * Doesn't block.
  9737. * Completion should be checked outside.
  9738. */
  9739. static void bnx2x_set_iscsi_eth_rx_mode(struct bnx2x *bp, bool start)
  9740. {
  9741. unsigned long accept_flags = 0, ramrod_flags = 0;
  9742. u8 cl_id = bnx2x_cnic_eth_cl_id(bp, BNX2X_ISCSI_ETH_CL_ID_IDX);
  9743. int sched_state = BNX2X_FILTER_ISCSI_ETH_STOP_SCHED;
  9744. if (start) {
  9745. /* Start accepting on iSCSI L2 ring. Accept all multicasts
  9746. * because it's the only way for UIO Queue to accept
  9747. * multicasts (in non-promiscuous mode only one Queue per
  9748. * function will receive multicast packets (leading in our
  9749. * case).
  9750. */
  9751. __set_bit(BNX2X_ACCEPT_UNICAST, &accept_flags);
  9752. __set_bit(BNX2X_ACCEPT_ALL_MULTICAST, &accept_flags);
  9753. __set_bit(BNX2X_ACCEPT_BROADCAST, &accept_flags);
  9754. __set_bit(BNX2X_ACCEPT_ANY_VLAN, &accept_flags);
  9755. /* Clear STOP_PENDING bit if START is requested */
  9756. clear_bit(BNX2X_FILTER_ISCSI_ETH_STOP_SCHED, &bp->sp_state);
  9757. sched_state = BNX2X_FILTER_ISCSI_ETH_START_SCHED;
  9758. } else
  9759. /* Clear START_PENDING bit if STOP is requested */
  9760. clear_bit(BNX2X_FILTER_ISCSI_ETH_START_SCHED, &bp->sp_state);
  9761. if (test_bit(BNX2X_FILTER_RX_MODE_PENDING, &bp->sp_state))
  9762. set_bit(sched_state, &bp->sp_state);
  9763. else {
  9764. __set_bit(RAMROD_RX, &ramrod_flags);
  9765. bnx2x_set_q_rx_mode(bp, cl_id, 0, accept_flags, 0,
  9766. ramrod_flags);
  9767. }
  9768. }
  9769. static int bnx2x_drv_ctl(struct net_device *dev, struct drv_ctl_info *ctl)
  9770. {
  9771. struct bnx2x *bp = netdev_priv(dev);
  9772. int rc = 0;
  9773. switch (ctl->cmd) {
  9774. case DRV_CTL_CTXTBL_WR_CMD: {
  9775. u32 index = ctl->data.io.offset;
  9776. dma_addr_t addr = ctl->data.io.dma_addr;
  9777. bnx2x_ilt_wr(bp, index, addr);
  9778. break;
  9779. }
  9780. case DRV_CTL_RET_L5_SPQ_CREDIT_CMD: {
  9781. int count = ctl->data.credit.credit_count;
  9782. bnx2x_cnic_sp_post(bp, count);
  9783. break;
  9784. }
  9785. /* rtnl_lock is held. */
  9786. case DRV_CTL_START_L2_CMD: {
  9787. struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
  9788. unsigned long sp_bits = 0;
  9789. /* Configure the iSCSI classification object */
  9790. bnx2x_init_mac_obj(bp, &bp->iscsi_l2_mac_obj,
  9791. cp->iscsi_l2_client_id,
  9792. cp->iscsi_l2_cid, BP_FUNC(bp),
  9793. bnx2x_sp(bp, mac_rdata),
  9794. bnx2x_sp_mapping(bp, mac_rdata),
  9795. BNX2X_FILTER_MAC_PENDING,
  9796. &bp->sp_state, BNX2X_OBJ_TYPE_RX,
  9797. &bp->macs_pool);
  9798. /* Set iSCSI MAC address */
  9799. rc = bnx2x_set_iscsi_eth_mac_addr(bp);
  9800. if (rc)
  9801. break;
  9802. mmiowb();
  9803. barrier();
  9804. /* Start accepting on iSCSI L2 ring */
  9805. netif_addr_lock_bh(dev);
  9806. bnx2x_set_iscsi_eth_rx_mode(bp, true);
  9807. netif_addr_unlock_bh(dev);
  9808. /* bits to wait on */
  9809. __set_bit(BNX2X_FILTER_RX_MODE_PENDING, &sp_bits);
  9810. __set_bit(BNX2X_FILTER_ISCSI_ETH_START_SCHED, &sp_bits);
  9811. if (!bnx2x_wait_sp_comp(bp, sp_bits))
  9812. BNX2X_ERR("rx_mode completion timed out!\n");
  9813. break;
  9814. }
  9815. /* rtnl_lock is held. */
  9816. case DRV_CTL_STOP_L2_CMD: {
  9817. unsigned long sp_bits = 0;
  9818. /* Stop accepting on iSCSI L2 ring */
  9819. netif_addr_lock_bh(dev);
  9820. bnx2x_set_iscsi_eth_rx_mode(bp, false);
  9821. netif_addr_unlock_bh(dev);
  9822. /* bits to wait on */
  9823. __set_bit(BNX2X_FILTER_RX_MODE_PENDING, &sp_bits);
  9824. __set_bit(BNX2X_FILTER_ISCSI_ETH_STOP_SCHED, &sp_bits);
  9825. if (!bnx2x_wait_sp_comp(bp, sp_bits))
  9826. BNX2X_ERR("rx_mode completion timed out!\n");
  9827. mmiowb();
  9828. barrier();
  9829. /* Unset iSCSI L2 MAC */
  9830. rc = bnx2x_del_all_macs(bp, &bp->iscsi_l2_mac_obj,
  9831. BNX2X_ISCSI_ETH_MAC, true);
  9832. break;
  9833. }
  9834. case DRV_CTL_RET_L2_SPQ_CREDIT_CMD: {
  9835. int count = ctl->data.credit.credit_count;
  9836. smp_mb__before_atomic_inc();
  9837. atomic_add(count, &bp->cq_spq_left);
  9838. smp_mb__after_atomic_inc();
  9839. break;
  9840. }
  9841. case DRV_CTL_ULP_REGISTER_CMD: {
  9842. int ulp_type = ctl->data.ulp_type;
  9843. if (CHIP_IS_E3(bp)) {
  9844. int idx = BP_FW_MB_IDX(bp);
  9845. u32 cap;
  9846. cap = SHMEM2_RD(bp, drv_capabilities_flag[idx]);
  9847. if (ulp_type == CNIC_ULP_ISCSI)
  9848. cap |= DRV_FLAGS_CAPABILITIES_LOADED_ISCSI;
  9849. else if (ulp_type == CNIC_ULP_FCOE)
  9850. cap |= DRV_FLAGS_CAPABILITIES_LOADED_FCOE;
  9851. SHMEM2_WR(bp, drv_capabilities_flag[idx], cap);
  9852. }
  9853. break;
  9854. }
  9855. case DRV_CTL_ULP_UNREGISTER_CMD: {
  9856. int ulp_type = ctl->data.ulp_type;
  9857. if (CHIP_IS_E3(bp)) {
  9858. int idx = BP_FW_MB_IDX(bp);
  9859. u32 cap;
  9860. cap = SHMEM2_RD(bp, drv_capabilities_flag[idx]);
  9861. if (ulp_type == CNIC_ULP_ISCSI)
  9862. cap &= ~DRV_FLAGS_CAPABILITIES_LOADED_ISCSI;
  9863. else if (ulp_type == CNIC_ULP_FCOE)
  9864. cap &= ~DRV_FLAGS_CAPABILITIES_LOADED_FCOE;
  9865. SHMEM2_WR(bp, drv_capabilities_flag[idx], cap);
  9866. }
  9867. break;
  9868. }
  9869. default:
  9870. BNX2X_ERR("unknown command %x\n", ctl->cmd);
  9871. rc = -EINVAL;
  9872. }
  9873. return rc;
  9874. }
  9875. void bnx2x_setup_cnic_irq_info(struct bnx2x *bp)
  9876. {
  9877. struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
  9878. if (bp->flags & USING_MSIX_FLAG) {
  9879. cp->drv_state |= CNIC_DRV_STATE_USING_MSIX;
  9880. cp->irq_arr[0].irq_flags |= CNIC_IRQ_FL_MSIX;
  9881. cp->irq_arr[0].vector = bp->msix_table[1].vector;
  9882. } else {
  9883. cp->drv_state &= ~CNIC_DRV_STATE_USING_MSIX;
  9884. cp->irq_arr[0].irq_flags &= ~CNIC_IRQ_FL_MSIX;
  9885. }
  9886. if (!CHIP_IS_E1x(bp))
  9887. cp->irq_arr[0].status_blk = (void *)bp->cnic_sb.e2_sb;
  9888. else
  9889. cp->irq_arr[0].status_blk = (void *)bp->cnic_sb.e1x_sb;
  9890. cp->irq_arr[0].status_blk_num = bnx2x_cnic_fw_sb_id(bp);
  9891. cp->irq_arr[0].status_blk_num2 = bnx2x_cnic_igu_sb_id(bp);
  9892. cp->irq_arr[1].status_blk = bp->def_status_blk;
  9893. cp->irq_arr[1].status_blk_num = DEF_SB_ID;
  9894. cp->irq_arr[1].status_blk_num2 = DEF_SB_IGU_ID;
  9895. cp->num_irq = 2;
  9896. }
  9897. static int bnx2x_register_cnic(struct net_device *dev, struct cnic_ops *ops,
  9898. void *data)
  9899. {
  9900. struct bnx2x *bp = netdev_priv(dev);
  9901. struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
  9902. if (ops == NULL)
  9903. return -EINVAL;
  9904. bp->cnic_kwq = kzalloc(PAGE_SIZE, GFP_KERNEL);
  9905. if (!bp->cnic_kwq)
  9906. return -ENOMEM;
  9907. bp->cnic_kwq_cons = bp->cnic_kwq;
  9908. bp->cnic_kwq_prod = bp->cnic_kwq;
  9909. bp->cnic_kwq_last = bp->cnic_kwq + MAX_SP_DESC_CNT;
  9910. bp->cnic_spq_pending = 0;
  9911. bp->cnic_kwq_pending = 0;
  9912. bp->cnic_data = data;
  9913. cp->num_irq = 0;
  9914. cp->drv_state |= CNIC_DRV_STATE_REGD;
  9915. cp->iro_arr = bp->iro_arr;
  9916. bnx2x_setup_cnic_irq_info(bp);
  9917. rcu_assign_pointer(bp->cnic_ops, ops);
  9918. return 0;
  9919. }
  9920. static int bnx2x_unregister_cnic(struct net_device *dev)
  9921. {
  9922. struct bnx2x *bp = netdev_priv(dev);
  9923. struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
  9924. mutex_lock(&bp->cnic_mutex);
  9925. cp->drv_state = 0;
  9926. RCU_INIT_POINTER(bp->cnic_ops, NULL);
  9927. mutex_unlock(&bp->cnic_mutex);
  9928. synchronize_rcu();
  9929. kfree(bp->cnic_kwq);
  9930. bp->cnic_kwq = NULL;
  9931. return 0;
  9932. }
  9933. struct cnic_eth_dev *bnx2x_cnic_probe(struct net_device *dev)
  9934. {
  9935. struct bnx2x *bp = netdev_priv(dev);
  9936. struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
  9937. /* If both iSCSI and FCoE are disabled - return NULL in
  9938. * order to indicate CNIC that it should not try to work
  9939. * with this device.
  9940. */
  9941. if (NO_ISCSI(bp) && NO_FCOE(bp))
  9942. return NULL;
  9943. cp->drv_owner = THIS_MODULE;
  9944. cp->chip_id = CHIP_ID(bp);
  9945. cp->pdev = bp->pdev;
  9946. cp->io_base = bp->regview;
  9947. cp->io_base2 = bp->doorbells;
  9948. cp->max_kwqe_pending = 8;
  9949. cp->ctx_blk_size = CDU_ILT_PAGE_SZ;
  9950. cp->ctx_tbl_offset = FUNC_ILT_BASE(BP_FUNC(bp)) +
  9951. bnx2x_cid_ilt_lines(bp);
  9952. cp->ctx_tbl_len = CNIC_ILT_LINES;
  9953. cp->starting_cid = bnx2x_cid_ilt_lines(bp) * ILT_PAGE_CIDS;
  9954. cp->drv_submit_kwqes_16 = bnx2x_cnic_sp_queue;
  9955. cp->drv_ctl = bnx2x_drv_ctl;
  9956. cp->drv_register_cnic = bnx2x_register_cnic;
  9957. cp->drv_unregister_cnic = bnx2x_unregister_cnic;
  9958. cp->fcoe_init_cid = BNX2X_FCOE_ETH_CID;
  9959. cp->iscsi_l2_client_id =
  9960. bnx2x_cnic_eth_cl_id(bp, BNX2X_ISCSI_ETH_CL_ID_IDX);
  9961. cp->iscsi_l2_cid = BNX2X_ISCSI_ETH_CID;
  9962. if (NO_ISCSI_OOO(bp))
  9963. cp->drv_state |= CNIC_DRV_STATE_NO_ISCSI_OOO;
  9964. if (NO_ISCSI(bp))
  9965. cp->drv_state |= CNIC_DRV_STATE_NO_ISCSI;
  9966. if (NO_FCOE(bp))
  9967. cp->drv_state |= CNIC_DRV_STATE_NO_FCOE;
  9968. DP(BNX2X_MSG_SP, "page_size %d, tbl_offset %d, tbl_lines %d, "
  9969. "starting cid %d\n",
  9970. cp->ctx_blk_size,
  9971. cp->ctx_tbl_offset,
  9972. cp->ctx_tbl_len,
  9973. cp->starting_cid);
  9974. return cp;
  9975. }
  9976. EXPORT_SYMBOL(bnx2x_cnic_probe);
  9977. #endif /* BCM_CNIC */