bnx2x_main.c 317 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. BNX2X_ERR("DMAE timeout!\n");
  413. rc = DMAE_TIMEOUT;
  414. goto unlock;
  415. }
  416. cnt--;
  417. udelay(50);
  418. }
  419. if (*wb_comp & DMAE_PCI_ERR_FLAG) {
  420. BNX2X_ERR("DMAE PCI error!\n");
  421. rc = DMAE_PCI_ERROR;
  422. }
  423. DP(BNX2X_MSG_OFF, "data after [0x%08x 0x%08x 0x%08x 0x%08x]\n",
  424. bp->slowpath->wb_data[0], bp->slowpath->wb_data[1],
  425. bp->slowpath->wb_data[2], bp->slowpath->wb_data[3]);
  426. unlock:
  427. spin_unlock_bh(&bp->dmae_lock);
  428. return rc;
  429. }
  430. void bnx2x_write_dmae(struct bnx2x *bp, dma_addr_t dma_addr, u32 dst_addr,
  431. u32 len32)
  432. {
  433. struct dmae_command dmae;
  434. if (!bp->dmae_ready) {
  435. u32 *data = bnx2x_sp(bp, wb_data[0]);
  436. DP(BNX2X_MSG_OFF, "DMAE is not ready (dst_addr %08x len32 %d)"
  437. " using indirect\n", dst_addr, len32);
  438. bnx2x_init_ind_wr(bp, dst_addr, data, len32);
  439. return;
  440. }
  441. /* set opcode and fixed command fields */
  442. bnx2x_prep_dmae_with_comp(bp, &dmae, DMAE_SRC_PCI, DMAE_DST_GRC);
  443. /* fill in addresses and len */
  444. dmae.src_addr_lo = U64_LO(dma_addr);
  445. dmae.src_addr_hi = U64_HI(dma_addr);
  446. dmae.dst_addr_lo = dst_addr >> 2;
  447. dmae.dst_addr_hi = 0;
  448. dmae.len = len32;
  449. bnx2x_dp_dmae(bp, &dmae, BNX2X_MSG_OFF);
  450. /* issue the command and wait for completion */
  451. bnx2x_issue_dmae_with_comp(bp, &dmae);
  452. }
  453. void bnx2x_read_dmae(struct bnx2x *bp, u32 src_addr, u32 len32)
  454. {
  455. struct dmae_command dmae;
  456. if (!bp->dmae_ready) {
  457. u32 *data = bnx2x_sp(bp, wb_data[0]);
  458. int i;
  459. DP(BNX2X_MSG_OFF, "DMAE is not ready (src_addr %08x len32 %d)"
  460. " using indirect\n", src_addr, len32);
  461. for (i = 0; i < len32; i++)
  462. data[i] = bnx2x_reg_rd_ind(bp, src_addr + i*4);
  463. return;
  464. }
  465. /* set opcode and fixed command fields */
  466. bnx2x_prep_dmae_with_comp(bp, &dmae, DMAE_SRC_GRC, DMAE_DST_PCI);
  467. /* fill in addresses and len */
  468. dmae.src_addr_lo = src_addr >> 2;
  469. dmae.src_addr_hi = 0;
  470. dmae.dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, wb_data));
  471. dmae.dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, wb_data));
  472. dmae.len = len32;
  473. bnx2x_dp_dmae(bp, &dmae, BNX2X_MSG_OFF);
  474. /* issue the command and wait for completion */
  475. bnx2x_issue_dmae_with_comp(bp, &dmae);
  476. }
  477. static void bnx2x_write_dmae_phys_len(struct bnx2x *bp, dma_addr_t phys_addr,
  478. u32 addr, u32 len)
  479. {
  480. int dmae_wr_max = DMAE_LEN32_WR_MAX(bp);
  481. int offset = 0;
  482. while (len > dmae_wr_max) {
  483. bnx2x_write_dmae(bp, phys_addr + offset,
  484. addr + offset, dmae_wr_max);
  485. offset += dmae_wr_max * 4;
  486. len -= dmae_wr_max;
  487. }
  488. bnx2x_write_dmae(bp, phys_addr + offset, addr + offset, len);
  489. }
  490. /* used only for slowpath so not inlined */
  491. static void bnx2x_wb_wr(struct bnx2x *bp, int reg, u32 val_hi, u32 val_lo)
  492. {
  493. u32 wb_write[2];
  494. wb_write[0] = val_hi;
  495. wb_write[1] = val_lo;
  496. REG_WR_DMAE(bp, reg, wb_write, 2);
  497. }
  498. #ifdef USE_WB_RD
  499. static u64 bnx2x_wb_rd(struct bnx2x *bp, int reg)
  500. {
  501. u32 wb_data[2];
  502. REG_RD_DMAE(bp, reg, wb_data, 2);
  503. return HILO_U64(wb_data[0], wb_data[1]);
  504. }
  505. #endif
  506. static int bnx2x_mc_assert(struct bnx2x *bp)
  507. {
  508. char last_idx;
  509. int i, rc = 0;
  510. u32 row0, row1, row2, row3;
  511. /* XSTORM */
  512. last_idx = REG_RD8(bp, BAR_XSTRORM_INTMEM +
  513. XSTORM_ASSERT_LIST_INDEX_OFFSET);
  514. if (last_idx)
  515. BNX2X_ERR("XSTORM_ASSERT_LIST_INDEX 0x%x\n", last_idx);
  516. /* print the asserts */
  517. for (i = 0; i < STROM_ASSERT_ARRAY_SIZE; i++) {
  518. row0 = REG_RD(bp, BAR_XSTRORM_INTMEM +
  519. XSTORM_ASSERT_LIST_OFFSET(i));
  520. row1 = REG_RD(bp, BAR_XSTRORM_INTMEM +
  521. XSTORM_ASSERT_LIST_OFFSET(i) + 4);
  522. row2 = REG_RD(bp, BAR_XSTRORM_INTMEM +
  523. XSTORM_ASSERT_LIST_OFFSET(i) + 8);
  524. row3 = REG_RD(bp, BAR_XSTRORM_INTMEM +
  525. XSTORM_ASSERT_LIST_OFFSET(i) + 12);
  526. if (row0 != COMMON_ASM_INVALID_ASSERT_OPCODE) {
  527. BNX2X_ERR("XSTORM_ASSERT_INDEX 0x%x = 0x%08x"
  528. " 0x%08x 0x%08x 0x%08x\n",
  529. i, row3, row2, row1, row0);
  530. rc++;
  531. } else {
  532. break;
  533. }
  534. }
  535. /* TSTORM */
  536. last_idx = REG_RD8(bp, BAR_TSTRORM_INTMEM +
  537. TSTORM_ASSERT_LIST_INDEX_OFFSET);
  538. if (last_idx)
  539. BNX2X_ERR("TSTORM_ASSERT_LIST_INDEX 0x%x\n", last_idx);
  540. /* print the asserts */
  541. for (i = 0; i < STROM_ASSERT_ARRAY_SIZE; i++) {
  542. row0 = REG_RD(bp, BAR_TSTRORM_INTMEM +
  543. TSTORM_ASSERT_LIST_OFFSET(i));
  544. row1 = REG_RD(bp, BAR_TSTRORM_INTMEM +
  545. TSTORM_ASSERT_LIST_OFFSET(i) + 4);
  546. row2 = REG_RD(bp, BAR_TSTRORM_INTMEM +
  547. TSTORM_ASSERT_LIST_OFFSET(i) + 8);
  548. row3 = REG_RD(bp, BAR_TSTRORM_INTMEM +
  549. TSTORM_ASSERT_LIST_OFFSET(i) + 12);
  550. if (row0 != COMMON_ASM_INVALID_ASSERT_OPCODE) {
  551. BNX2X_ERR("TSTORM_ASSERT_INDEX 0x%x = 0x%08x"
  552. " 0x%08x 0x%08x 0x%08x\n",
  553. i, row3, row2, row1, row0);
  554. rc++;
  555. } else {
  556. break;
  557. }
  558. }
  559. /* CSTORM */
  560. last_idx = REG_RD8(bp, BAR_CSTRORM_INTMEM +
  561. CSTORM_ASSERT_LIST_INDEX_OFFSET);
  562. if (last_idx)
  563. BNX2X_ERR("CSTORM_ASSERT_LIST_INDEX 0x%x\n", last_idx);
  564. /* print the asserts */
  565. for (i = 0; i < STROM_ASSERT_ARRAY_SIZE; i++) {
  566. row0 = REG_RD(bp, BAR_CSTRORM_INTMEM +
  567. CSTORM_ASSERT_LIST_OFFSET(i));
  568. row1 = REG_RD(bp, BAR_CSTRORM_INTMEM +
  569. CSTORM_ASSERT_LIST_OFFSET(i) + 4);
  570. row2 = REG_RD(bp, BAR_CSTRORM_INTMEM +
  571. CSTORM_ASSERT_LIST_OFFSET(i) + 8);
  572. row3 = REG_RD(bp, BAR_CSTRORM_INTMEM +
  573. CSTORM_ASSERT_LIST_OFFSET(i) + 12);
  574. if (row0 != COMMON_ASM_INVALID_ASSERT_OPCODE) {
  575. BNX2X_ERR("CSTORM_ASSERT_INDEX 0x%x = 0x%08x"
  576. " 0x%08x 0x%08x 0x%08x\n",
  577. i, row3, row2, row1, row0);
  578. rc++;
  579. } else {
  580. break;
  581. }
  582. }
  583. /* USTORM */
  584. last_idx = REG_RD8(bp, BAR_USTRORM_INTMEM +
  585. USTORM_ASSERT_LIST_INDEX_OFFSET);
  586. if (last_idx)
  587. BNX2X_ERR("USTORM_ASSERT_LIST_INDEX 0x%x\n", last_idx);
  588. /* print the asserts */
  589. for (i = 0; i < STROM_ASSERT_ARRAY_SIZE; i++) {
  590. row0 = REG_RD(bp, BAR_USTRORM_INTMEM +
  591. USTORM_ASSERT_LIST_OFFSET(i));
  592. row1 = REG_RD(bp, BAR_USTRORM_INTMEM +
  593. USTORM_ASSERT_LIST_OFFSET(i) + 4);
  594. row2 = REG_RD(bp, BAR_USTRORM_INTMEM +
  595. USTORM_ASSERT_LIST_OFFSET(i) + 8);
  596. row3 = REG_RD(bp, BAR_USTRORM_INTMEM +
  597. USTORM_ASSERT_LIST_OFFSET(i) + 12);
  598. if (row0 != COMMON_ASM_INVALID_ASSERT_OPCODE) {
  599. BNX2X_ERR("USTORM_ASSERT_INDEX 0x%x = 0x%08x"
  600. " 0x%08x 0x%08x 0x%08x\n",
  601. i, row3, row2, row1, row0);
  602. rc++;
  603. } else {
  604. break;
  605. }
  606. }
  607. return rc;
  608. }
  609. void bnx2x_fw_dump_lvl(struct bnx2x *bp, const char *lvl)
  610. {
  611. u32 addr, val;
  612. u32 mark, offset;
  613. __be32 data[9];
  614. int word;
  615. u32 trace_shmem_base;
  616. if (BP_NOMCP(bp)) {
  617. BNX2X_ERR("NO MCP - can not dump\n");
  618. return;
  619. }
  620. netdev_printk(lvl, bp->dev, "bc %d.%d.%d\n",
  621. (bp->common.bc_ver & 0xff0000) >> 16,
  622. (bp->common.bc_ver & 0xff00) >> 8,
  623. (bp->common.bc_ver & 0xff));
  624. val = REG_RD(bp, MCP_REG_MCPR_CPU_PROGRAM_COUNTER);
  625. if (val == REG_RD(bp, MCP_REG_MCPR_CPU_PROGRAM_COUNTER))
  626. printk("%s" "MCP PC at 0x%x\n", lvl, val);
  627. if (BP_PATH(bp) == 0)
  628. trace_shmem_base = bp->common.shmem_base;
  629. else
  630. trace_shmem_base = SHMEM2_RD(bp, other_shmem_base_addr);
  631. addr = trace_shmem_base - 0x0800 + 4;
  632. mark = REG_RD(bp, addr);
  633. mark = (CHIP_IS_E1x(bp) ? MCP_REG_MCPR_SCRATCH : MCP_A_REG_MCPR_SCRATCH)
  634. + ((mark + 0x3) & ~0x3) - 0x08000000;
  635. printk("%s" "begin fw dump (mark 0x%x)\n", lvl, mark);
  636. printk("%s", lvl);
  637. for (offset = mark; offset <= trace_shmem_base; offset += 0x8*4) {
  638. for (word = 0; word < 8; word++)
  639. data[word] = htonl(REG_RD(bp, offset + 4*word));
  640. data[8] = 0x0;
  641. pr_cont("%s", (char *)data);
  642. }
  643. for (offset = addr + 4; offset <= mark; offset += 0x8*4) {
  644. for (word = 0; word < 8; word++)
  645. data[word] = htonl(REG_RD(bp, offset + 4*word));
  646. data[8] = 0x0;
  647. pr_cont("%s", (char *)data);
  648. }
  649. printk("%s" "end of fw dump\n", lvl);
  650. }
  651. static inline void bnx2x_fw_dump(struct bnx2x *bp)
  652. {
  653. bnx2x_fw_dump_lvl(bp, KERN_ERR);
  654. }
  655. void bnx2x_panic_dump(struct bnx2x *bp)
  656. {
  657. int i;
  658. u16 j;
  659. struct hc_sp_status_block_data sp_sb_data;
  660. int func = BP_FUNC(bp);
  661. #ifdef BNX2X_STOP_ON_ERROR
  662. u16 start = 0, end = 0;
  663. u8 cos;
  664. #endif
  665. bp->stats_state = STATS_STATE_DISABLED;
  666. DP(BNX2X_MSG_STATS, "stats_state - DISABLED\n");
  667. BNX2X_ERR("begin crash dump -----------------\n");
  668. /* Indices */
  669. /* Common */
  670. BNX2X_ERR("def_idx(0x%x) def_att_idx(0x%x) attn_state(0x%x)"
  671. " spq_prod_idx(0x%x) next_stats_cnt(0x%x)\n",
  672. bp->def_idx, bp->def_att_idx, bp->attn_state,
  673. bp->spq_prod_idx, bp->stats_counter);
  674. BNX2X_ERR("DSB: attn bits(0x%x) ack(0x%x) id(0x%x) idx(0x%x)\n",
  675. bp->def_status_blk->atten_status_block.attn_bits,
  676. bp->def_status_blk->atten_status_block.attn_bits_ack,
  677. bp->def_status_blk->atten_status_block.status_block_id,
  678. bp->def_status_blk->atten_status_block.attn_bits_index);
  679. BNX2X_ERR(" def (");
  680. for (i = 0; i < HC_SP_SB_MAX_INDICES; i++)
  681. pr_cont("0x%x%s",
  682. bp->def_status_blk->sp_sb.index_values[i],
  683. (i == HC_SP_SB_MAX_INDICES - 1) ? ") " : " ");
  684. for (i = 0; i < sizeof(struct hc_sp_status_block_data)/sizeof(u32); i++)
  685. *((u32 *)&sp_sb_data + i) = REG_RD(bp, BAR_CSTRORM_INTMEM +
  686. CSTORM_SP_STATUS_BLOCK_DATA_OFFSET(func) +
  687. i*sizeof(u32));
  688. 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",
  689. sp_sb_data.igu_sb_id,
  690. sp_sb_data.igu_seg_id,
  691. sp_sb_data.p_func.pf_id,
  692. sp_sb_data.p_func.vnic_id,
  693. sp_sb_data.p_func.vf_id,
  694. sp_sb_data.p_func.vf_valid,
  695. sp_sb_data.state);
  696. for_each_eth_queue(bp, i) {
  697. struct bnx2x_fastpath *fp = &bp->fp[i];
  698. int loop;
  699. struct hc_status_block_data_e2 sb_data_e2;
  700. struct hc_status_block_data_e1x sb_data_e1x;
  701. struct hc_status_block_sm *hc_sm_p =
  702. CHIP_IS_E1x(bp) ?
  703. sb_data_e1x.common.state_machine :
  704. sb_data_e2.common.state_machine;
  705. struct hc_index_data *hc_index_p =
  706. CHIP_IS_E1x(bp) ?
  707. sb_data_e1x.index_data :
  708. sb_data_e2.index_data;
  709. u8 data_size, cos;
  710. u32 *sb_data_p;
  711. struct bnx2x_fp_txdata txdata;
  712. /* Rx */
  713. BNX2X_ERR("fp%d: rx_bd_prod(0x%x) rx_bd_cons(0x%x)"
  714. " rx_comp_prod(0x%x)"
  715. " rx_comp_cons(0x%x) *rx_cons_sb(0x%x)\n",
  716. i, fp->rx_bd_prod, fp->rx_bd_cons,
  717. fp->rx_comp_prod,
  718. fp->rx_comp_cons, le16_to_cpu(*fp->rx_cons_sb));
  719. BNX2X_ERR(" rx_sge_prod(0x%x) last_max_sge(0x%x)"
  720. " fp_hc_idx(0x%x)\n",
  721. fp->rx_sge_prod, fp->last_max_sge,
  722. le16_to_cpu(fp->fp_hc_idx));
  723. /* Tx */
  724. for_each_cos_in_tx_queue(fp, cos)
  725. {
  726. txdata = fp->txdata[cos];
  727. BNX2X_ERR("fp%d: tx_pkt_prod(0x%x) tx_pkt_cons(0x%x)"
  728. " tx_bd_prod(0x%x) tx_bd_cons(0x%x)"
  729. " *tx_cons_sb(0x%x)\n",
  730. i, txdata.tx_pkt_prod,
  731. txdata.tx_pkt_cons, txdata.tx_bd_prod,
  732. txdata.tx_bd_cons,
  733. le16_to_cpu(*txdata.tx_cons_sb));
  734. }
  735. loop = CHIP_IS_E1x(bp) ?
  736. HC_SB_MAX_INDICES_E1X : HC_SB_MAX_INDICES_E2;
  737. /* host sb data */
  738. #ifdef BCM_CNIC
  739. if (IS_FCOE_FP(fp))
  740. continue;
  741. #endif
  742. BNX2X_ERR(" run indexes (");
  743. for (j = 0; j < HC_SB_MAX_SM; j++)
  744. pr_cont("0x%x%s",
  745. fp->sb_running_index[j],
  746. (j == HC_SB_MAX_SM - 1) ? ")" : " ");
  747. BNX2X_ERR(" indexes (");
  748. for (j = 0; j < loop; j++)
  749. pr_cont("0x%x%s",
  750. fp->sb_index_values[j],
  751. (j == loop - 1) ? ")" : " ");
  752. /* fw sb data */
  753. data_size = CHIP_IS_E1x(bp) ?
  754. sizeof(struct hc_status_block_data_e1x) :
  755. sizeof(struct hc_status_block_data_e2);
  756. data_size /= sizeof(u32);
  757. sb_data_p = CHIP_IS_E1x(bp) ?
  758. (u32 *)&sb_data_e1x :
  759. (u32 *)&sb_data_e2;
  760. /* copy sb data in here */
  761. for (j = 0; j < data_size; j++)
  762. *(sb_data_p + j) = REG_RD(bp, BAR_CSTRORM_INTMEM +
  763. CSTORM_STATUS_BLOCK_DATA_OFFSET(fp->fw_sb_id) +
  764. j * sizeof(u32));
  765. if (!CHIP_IS_E1x(bp)) {
  766. pr_cont("pf_id(0x%x) vf_id(0x%x) vf_valid(0x%x) "
  767. "vnic_id(0x%x) same_igu_sb_1b(0x%x) "
  768. "state(0x%x)\n",
  769. sb_data_e2.common.p_func.pf_id,
  770. sb_data_e2.common.p_func.vf_id,
  771. sb_data_e2.common.p_func.vf_valid,
  772. sb_data_e2.common.p_func.vnic_id,
  773. sb_data_e2.common.same_igu_sb_1b,
  774. sb_data_e2.common.state);
  775. } else {
  776. pr_cont("pf_id(0x%x) vf_id(0x%x) vf_valid(0x%x) "
  777. "vnic_id(0x%x) same_igu_sb_1b(0x%x) "
  778. "state(0x%x)\n",
  779. sb_data_e1x.common.p_func.pf_id,
  780. sb_data_e1x.common.p_func.vf_id,
  781. sb_data_e1x.common.p_func.vf_valid,
  782. sb_data_e1x.common.p_func.vnic_id,
  783. sb_data_e1x.common.same_igu_sb_1b,
  784. sb_data_e1x.common.state);
  785. }
  786. /* SB_SMs data */
  787. for (j = 0; j < HC_SB_MAX_SM; j++) {
  788. pr_cont("SM[%d] __flags (0x%x) "
  789. "igu_sb_id (0x%x) igu_seg_id(0x%x) "
  790. "time_to_expire (0x%x) "
  791. "timer_value(0x%x)\n", j,
  792. hc_sm_p[j].__flags,
  793. hc_sm_p[j].igu_sb_id,
  794. hc_sm_p[j].igu_seg_id,
  795. hc_sm_p[j].time_to_expire,
  796. hc_sm_p[j].timer_value);
  797. }
  798. /* Indecies data */
  799. for (j = 0; j < loop; j++) {
  800. pr_cont("INDEX[%d] flags (0x%x) "
  801. "timeout (0x%x)\n", j,
  802. hc_index_p[j].flags,
  803. hc_index_p[j].timeout);
  804. }
  805. }
  806. #ifdef BNX2X_STOP_ON_ERROR
  807. /* Rings */
  808. /* Rx */
  809. for_each_rx_queue(bp, i) {
  810. struct bnx2x_fastpath *fp = &bp->fp[i];
  811. start = RX_BD(le16_to_cpu(*fp->rx_cons_sb) - 10);
  812. end = RX_BD(le16_to_cpu(*fp->rx_cons_sb) + 503);
  813. for (j = start; j != end; j = RX_BD(j + 1)) {
  814. u32 *rx_bd = (u32 *)&fp->rx_desc_ring[j];
  815. struct sw_rx_bd *sw_bd = &fp->rx_buf_ring[j];
  816. BNX2X_ERR("fp%d: rx_bd[%x]=[%x:%x] sw_bd=[%p]\n",
  817. i, j, rx_bd[1], rx_bd[0], sw_bd->skb);
  818. }
  819. start = RX_SGE(fp->rx_sge_prod);
  820. end = RX_SGE(fp->last_max_sge);
  821. for (j = start; j != end; j = RX_SGE(j + 1)) {
  822. u32 *rx_sge = (u32 *)&fp->rx_sge_ring[j];
  823. struct sw_rx_page *sw_page = &fp->rx_page_ring[j];
  824. BNX2X_ERR("fp%d: rx_sge[%x]=[%x:%x] sw_page=[%p]\n",
  825. i, j, rx_sge[1], rx_sge[0], sw_page->page);
  826. }
  827. start = RCQ_BD(fp->rx_comp_cons - 10);
  828. end = RCQ_BD(fp->rx_comp_cons + 503);
  829. for (j = start; j != end; j = RCQ_BD(j + 1)) {
  830. u32 *cqe = (u32 *)&fp->rx_comp_ring[j];
  831. BNX2X_ERR("fp%d: cqe[%x]=[%x:%x:%x:%x]\n",
  832. i, j, cqe[0], cqe[1], cqe[2], cqe[3]);
  833. }
  834. }
  835. /* Tx */
  836. for_each_tx_queue(bp, i) {
  837. struct bnx2x_fastpath *fp = &bp->fp[i];
  838. for_each_cos_in_tx_queue(fp, cos) {
  839. struct bnx2x_fp_txdata *txdata = &fp->txdata[cos];
  840. start = TX_BD(le16_to_cpu(*txdata->tx_cons_sb) - 10);
  841. end = TX_BD(le16_to_cpu(*txdata->tx_cons_sb) + 245);
  842. for (j = start; j != end; j = TX_BD(j + 1)) {
  843. struct sw_tx_bd *sw_bd =
  844. &txdata->tx_buf_ring[j];
  845. BNX2X_ERR("fp%d: txdata %d, "
  846. "packet[%x]=[%p,%x]\n",
  847. i, cos, j, sw_bd->skb,
  848. sw_bd->first_bd);
  849. }
  850. start = TX_BD(txdata->tx_bd_cons - 10);
  851. end = TX_BD(txdata->tx_bd_cons + 254);
  852. for (j = start; j != end; j = TX_BD(j + 1)) {
  853. u32 *tx_bd = (u32 *)&txdata->tx_desc_ring[j];
  854. BNX2X_ERR("fp%d: txdata %d, tx_bd[%x]="
  855. "[%x:%x:%x:%x]\n",
  856. i, cos, j, tx_bd[0], tx_bd[1],
  857. tx_bd[2], tx_bd[3]);
  858. }
  859. }
  860. }
  861. #endif
  862. bnx2x_fw_dump(bp);
  863. bnx2x_mc_assert(bp);
  864. BNX2X_ERR("end crash dump -----------------\n");
  865. }
  866. /*
  867. * FLR Support for E2
  868. *
  869. * bnx2x_pf_flr_clnup() is called during nic_load in the per function HW
  870. * initialization.
  871. */
  872. #define FLR_WAIT_USEC 10000 /* 10 miliseconds */
  873. #define FLR_WAIT_INTERAVAL 50 /* usec */
  874. #define FLR_POLL_CNT (FLR_WAIT_USEC/FLR_WAIT_INTERAVAL) /* 200 */
  875. struct pbf_pN_buf_regs {
  876. int pN;
  877. u32 init_crd;
  878. u32 crd;
  879. u32 crd_freed;
  880. };
  881. struct pbf_pN_cmd_regs {
  882. int pN;
  883. u32 lines_occup;
  884. u32 lines_freed;
  885. };
  886. static void bnx2x_pbf_pN_buf_flushed(struct bnx2x *bp,
  887. struct pbf_pN_buf_regs *regs,
  888. u32 poll_count)
  889. {
  890. u32 init_crd, crd, crd_start, crd_freed, crd_freed_start;
  891. u32 cur_cnt = poll_count;
  892. crd_freed = crd_freed_start = REG_RD(bp, regs->crd_freed);
  893. crd = crd_start = REG_RD(bp, regs->crd);
  894. init_crd = REG_RD(bp, regs->init_crd);
  895. DP(BNX2X_MSG_SP, "INIT CREDIT[%d] : %x\n", regs->pN, init_crd);
  896. DP(BNX2X_MSG_SP, "CREDIT[%d] : s:%x\n", regs->pN, crd);
  897. DP(BNX2X_MSG_SP, "CREDIT_FREED[%d]: s:%x\n", regs->pN, crd_freed);
  898. while ((crd != init_crd) && ((u32)SUB_S32(crd_freed, crd_freed_start) <
  899. (init_crd - crd_start))) {
  900. if (cur_cnt--) {
  901. udelay(FLR_WAIT_INTERAVAL);
  902. crd = REG_RD(bp, regs->crd);
  903. crd_freed = REG_RD(bp, regs->crd_freed);
  904. } else {
  905. DP(BNX2X_MSG_SP, "PBF tx buffer[%d] timed out\n",
  906. regs->pN);
  907. DP(BNX2X_MSG_SP, "CREDIT[%d] : c:%x\n",
  908. regs->pN, crd);
  909. DP(BNX2X_MSG_SP, "CREDIT_FREED[%d]: c:%x\n",
  910. regs->pN, crd_freed);
  911. break;
  912. }
  913. }
  914. DP(BNX2X_MSG_SP, "Waited %d*%d usec for PBF tx buffer[%d]\n",
  915. poll_count-cur_cnt, FLR_WAIT_INTERAVAL, regs->pN);
  916. }
  917. static void bnx2x_pbf_pN_cmd_flushed(struct bnx2x *bp,
  918. struct pbf_pN_cmd_regs *regs,
  919. u32 poll_count)
  920. {
  921. u32 occup, to_free, freed, freed_start;
  922. u32 cur_cnt = poll_count;
  923. occup = to_free = REG_RD(bp, regs->lines_occup);
  924. freed = freed_start = REG_RD(bp, regs->lines_freed);
  925. DP(BNX2X_MSG_SP, "OCCUPANCY[%d] : s:%x\n", regs->pN, occup);
  926. DP(BNX2X_MSG_SP, "LINES_FREED[%d] : s:%x\n", regs->pN, freed);
  927. while (occup && ((u32)SUB_S32(freed, freed_start) < to_free)) {
  928. if (cur_cnt--) {
  929. udelay(FLR_WAIT_INTERAVAL);
  930. occup = REG_RD(bp, regs->lines_occup);
  931. freed = REG_RD(bp, regs->lines_freed);
  932. } else {
  933. DP(BNX2X_MSG_SP, "PBF cmd queue[%d] timed out\n",
  934. regs->pN);
  935. DP(BNX2X_MSG_SP, "OCCUPANCY[%d] : s:%x\n",
  936. regs->pN, occup);
  937. DP(BNX2X_MSG_SP, "LINES_FREED[%d] : s:%x\n",
  938. regs->pN, freed);
  939. break;
  940. }
  941. }
  942. DP(BNX2X_MSG_SP, "Waited %d*%d usec for PBF cmd queue[%d]\n",
  943. poll_count-cur_cnt, FLR_WAIT_INTERAVAL, regs->pN);
  944. }
  945. static inline u32 bnx2x_flr_clnup_reg_poll(struct bnx2x *bp, u32 reg,
  946. u32 expected, u32 poll_count)
  947. {
  948. u32 cur_cnt = poll_count;
  949. u32 val;
  950. while ((val = REG_RD(bp, reg)) != expected && cur_cnt--)
  951. udelay(FLR_WAIT_INTERAVAL);
  952. return val;
  953. }
  954. static inline int bnx2x_flr_clnup_poll_hw_counter(struct bnx2x *bp, u32 reg,
  955. char *msg, u32 poll_cnt)
  956. {
  957. u32 val = bnx2x_flr_clnup_reg_poll(bp, reg, 0, poll_cnt);
  958. if (val != 0) {
  959. BNX2X_ERR("%s usage count=%d\n", msg, val);
  960. return 1;
  961. }
  962. return 0;
  963. }
  964. static u32 bnx2x_flr_clnup_poll_count(struct bnx2x *bp)
  965. {
  966. /* adjust polling timeout */
  967. if (CHIP_REV_IS_EMUL(bp))
  968. return FLR_POLL_CNT * 2000;
  969. if (CHIP_REV_IS_FPGA(bp))
  970. return FLR_POLL_CNT * 120;
  971. return FLR_POLL_CNT;
  972. }
  973. static void bnx2x_tx_hw_flushed(struct bnx2x *bp, u32 poll_count)
  974. {
  975. struct pbf_pN_cmd_regs cmd_regs[] = {
  976. {0, (CHIP_IS_E3B0(bp)) ?
  977. PBF_REG_TQ_OCCUPANCY_Q0 :
  978. PBF_REG_P0_TQ_OCCUPANCY,
  979. (CHIP_IS_E3B0(bp)) ?
  980. PBF_REG_TQ_LINES_FREED_CNT_Q0 :
  981. PBF_REG_P0_TQ_LINES_FREED_CNT},
  982. {1, (CHIP_IS_E3B0(bp)) ?
  983. PBF_REG_TQ_OCCUPANCY_Q1 :
  984. PBF_REG_P1_TQ_OCCUPANCY,
  985. (CHIP_IS_E3B0(bp)) ?
  986. PBF_REG_TQ_LINES_FREED_CNT_Q1 :
  987. PBF_REG_P1_TQ_LINES_FREED_CNT},
  988. {4, (CHIP_IS_E3B0(bp)) ?
  989. PBF_REG_TQ_OCCUPANCY_LB_Q :
  990. PBF_REG_P4_TQ_OCCUPANCY,
  991. (CHIP_IS_E3B0(bp)) ?
  992. PBF_REG_TQ_LINES_FREED_CNT_LB_Q :
  993. PBF_REG_P4_TQ_LINES_FREED_CNT}
  994. };
  995. struct pbf_pN_buf_regs buf_regs[] = {
  996. {0, (CHIP_IS_E3B0(bp)) ?
  997. PBF_REG_INIT_CRD_Q0 :
  998. PBF_REG_P0_INIT_CRD ,
  999. (CHIP_IS_E3B0(bp)) ?
  1000. PBF_REG_CREDIT_Q0 :
  1001. PBF_REG_P0_CREDIT,
  1002. (CHIP_IS_E3B0(bp)) ?
  1003. PBF_REG_INTERNAL_CRD_FREED_CNT_Q0 :
  1004. PBF_REG_P0_INTERNAL_CRD_FREED_CNT},
  1005. {1, (CHIP_IS_E3B0(bp)) ?
  1006. PBF_REG_INIT_CRD_Q1 :
  1007. PBF_REG_P1_INIT_CRD,
  1008. (CHIP_IS_E3B0(bp)) ?
  1009. PBF_REG_CREDIT_Q1 :
  1010. PBF_REG_P1_CREDIT,
  1011. (CHIP_IS_E3B0(bp)) ?
  1012. PBF_REG_INTERNAL_CRD_FREED_CNT_Q1 :
  1013. PBF_REG_P1_INTERNAL_CRD_FREED_CNT},
  1014. {4, (CHIP_IS_E3B0(bp)) ?
  1015. PBF_REG_INIT_CRD_LB_Q :
  1016. PBF_REG_P4_INIT_CRD,
  1017. (CHIP_IS_E3B0(bp)) ?
  1018. PBF_REG_CREDIT_LB_Q :
  1019. PBF_REG_P4_CREDIT,
  1020. (CHIP_IS_E3B0(bp)) ?
  1021. PBF_REG_INTERNAL_CRD_FREED_CNT_LB_Q :
  1022. PBF_REG_P4_INTERNAL_CRD_FREED_CNT},
  1023. };
  1024. int i;
  1025. /* Verify the command queues are flushed P0, P1, P4 */
  1026. for (i = 0; i < ARRAY_SIZE(cmd_regs); i++)
  1027. bnx2x_pbf_pN_cmd_flushed(bp, &cmd_regs[i], poll_count);
  1028. /* Verify the transmission buffers are flushed P0, P1, P4 */
  1029. for (i = 0; i < ARRAY_SIZE(buf_regs); i++)
  1030. bnx2x_pbf_pN_buf_flushed(bp, &buf_regs[i], poll_count);
  1031. }
  1032. #define OP_GEN_PARAM(param) \
  1033. (((param) << SDM_OP_GEN_COMP_PARAM_SHIFT) & SDM_OP_GEN_COMP_PARAM)
  1034. #define OP_GEN_TYPE(type) \
  1035. (((type) << SDM_OP_GEN_COMP_TYPE_SHIFT) & SDM_OP_GEN_COMP_TYPE)
  1036. #define OP_GEN_AGG_VECT(index) \
  1037. (((index) << SDM_OP_GEN_AGG_VECT_IDX_SHIFT) & SDM_OP_GEN_AGG_VECT_IDX)
  1038. static inline int bnx2x_send_final_clnup(struct bnx2x *bp, u8 clnup_func,
  1039. u32 poll_cnt)
  1040. {
  1041. struct sdm_op_gen op_gen = {0};
  1042. u32 comp_addr = BAR_CSTRORM_INTMEM +
  1043. CSTORM_FINAL_CLEANUP_COMPLETE_OFFSET(clnup_func);
  1044. int ret = 0;
  1045. if (REG_RD(bp, comp_addr)) {
  1046. BNX2X_ERR("Cleanup complete is not 0\n");
  1047. return 1;
  1048. }
  1049. op_gen.command |= OP_GEN_PARAM(XSTORM_AGG_INT_FINAL_CLEANUP_INDEX);
  1050. op_gen.command |= OP_GEN_TYPE(XSTORM_AGG_INT_FINAL_CLEANUP_COMP_TYPE);
  1051. op_gen.command |= OP_GEN_AGG_VECT(clnup_func);
  1052. op_gen.command |= 1 << SDM_OP_GEN_AGG_VECT_IDX_VALID_SHIFT;
  1053. DP(BNX2X_MSG_SP, "FW Final cleanup\n");
  1054. REG_WR(bp, XSDM_REG_OPERATION_GEN, op_gen.command);
  1055. if (bnx2x_flr_clnup_reg_poll(bp, comp_addr, 1, poll_cnt) != 1) {
  1056. BNX2X_ERR("FW final cleanup did not succeed\n");
  1057. ret = 1;
  1058. }
  1059. /* Zero completion for nxt FLR */
  1060. REG_WR(bp, comp_addr, 0);
  1061. return ret;
  1062. }
  1063. static inline u8 bnx2x_is_pcie_pending(struct pci_dev *dev)
  1064. {
  1065. int pos;
  1066. u16 status;
  1067. pos = pci_pcie_cap(dev);
  1068. if (!pos)
  1069. return false;
  1070. pci_read_config_word(dev, pos + PCI_EXP_DEVSTA, &status);
  1071. return status & PCI_EXP_DEVSTA_TRPND;
  1072. }
  1073. /* PF FLR specific routines
  1074. */
  1075. static int bnx2x_poll_hw_usage_counters(struct bnx2x *bp, u32 poll_cnt)
  1076. {
  1077. /* wait for CFC PF usage-counter to zero (includes all the VFs) */
  1078. if (bnx2x_flr_clnup_poll_hw_counter(bp,
  1079. CFC_REG_NUM_LCIDS_INSIDE_PF,
  1080. "CFC PF usage counter timed out",
  1081. poll_cnt))
  1082. return 1;
  1083. /* Wait for DQ PF usage-counter to zero (until DQ cleanup) */
  1084. if (bnx2x_flr_clnup_poll_hw_counter(bp,
  1085. DORQ_REG_PF_USAGE_CNT,
  1086. "DQ PF usage counter timed out",
  1087. poll_cnt))
  1088. return 1;
  1089. /* Wait for QM PF usage-counter to zero (until DQ cleanup) */
  1090. if (bnx2x_flr_clnup_poll_hw_counter(bp,
  1091. QM_REG_PF_USG_CNT_0 + 4*BP_FUNC(bp),
  1092. "QM PF usage counter timed out",
  1093. poll_cnt))
  1094. return 1;
  1095. /* Wait for Timer PF usage-counters to zero (until DQ cleanup) */
  1096. if (bnx2x_flr_clnup_poll_hw_counter(bp,
  1097. TM_REG_LIN0_VNIC_UC + 4*BP_PORT(bp),
  1098. "Timers VNIC usage counter timed out",
  1099. poll_cnt))
  1100. return 1;
  1101. if (bnx2x_flr_clnup_poll_hw_counter(bp,
  1102. TM_REG_LIN0_NUM_SCANS + 4*BP_PORT(bp),
  1103. "Timers NUM_SCANS usage counter timed out",
  1104. poll_cnt))
  1105. return 1;
  1106. /* Wait DMAE PF usage counter to zero */
  1107. if (bnx2x_flr_clnup_poll_hw_counter(bp,
  1108. dmae_reg_go_c[INIT_DMAE_C(bp)],
  1109. "DMAE dommand register timed out",
  1110. poll_cnt))
  1111. return 1;
  1112. return 0;
  1113. }
  1114. static void bnx2x_hw_enable_status(struct bnx2x *bp)
  1115. {
  1116. u32 val;
  1117. val = REG_RD(bp, CFC_REG_WEAK_ENABLE_PF);
  1118. DP(BNX2X_MSG_SP, "CFC_REG_WEAK_ENABLE_PF is 0x%x\n", val);
  1119. val = REG_RD(bp, PBF_REG_DISABLE_PF);
  1120. DP(BNX2X_MSG_SP, "PBF_REG_DISABLE_PF is 0x%x\n", val);
  1121. val = REG_RD(bp, IGU_REG_PCI_PF_MSI_EN);
  1122. DP(BNX2X_MSG_SP, "IGU_REG_PCI_PF_MSI_EN is 0x%x\n", val);
  1123. val = REG_RD(bp, IGU_REG_PCI_PF_MSIX_EN);
  1124. DP(BNX2X_MSG_SP, "IGU_REG_PCI_PF_MSIX_EN is 0x%x\n", val);
  1125. val = REG_RD(bp, IGU_REG_PCI_PF_MSIX_FUNC_MASK);
  1126. DP(BNX2X_MSG_SP, "IGU_REG_PCI_PF_MSIX_FUNC_MASK is 0x%x\n", val);
  1127. val = REG_RD(bp, PGLUE_B_REG_SHADOW_BME_PF_7_0_CLR);
  1128. DP(BNX2X_MSG_SP, "PGLUE_B_REG_SHADOW_BME_PF_7_0_CLR is 0x%x\n", val);
  1129. val = REG_RD(bp, PGLUE_B_REG_FLR_REQUEST_PF_7_0_CLR);
  1130. DP(BNX2X_MSG_SP, "PGLUE_B_REG_FLR_REQUEST_PF_7_0_CLR is 0x%x\n", val);
  1131. val = REG_RD(bp, PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER);
  1132. DP(BNX2X_MSG_SP, "PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER is 0x%x\n",
  1133. val);
  1134. }
  1135. static int bnx2x_pf_flr_clnup(struct bnx2x *bp)
  1136. {
  1137. u32 poll_cnt = bnx2x_flr_clnup_poll_count(bp);
  1138. DP(BNX2X_MSG_SP, "Cleanup after FLR PF[%d]\n", BP_ABS_FUNC(bp));
  1139. /* Re-enable PF target read access */
  1140. REG_WR(bp, PGLUE_B_REG_INTERNAL_PFID_ENABLE_TARGET_READ, 1);
  1141. /* Poll HW usage counters */
  1142. if (bnx2x_poll_hw_usage_counters(bp, poll_cnt))
  1143. return -EBUSY;
  1144. /* Zero the igu 'trailing edge' and 'leading edge' */
  1145. /* Send the FW cleanup command */
  1146. if (bnx2x_send_final_clnup(bp, (u8)BP_FUNC(bp), poll_cnt))
  1147. return -EBUSY;
  1148. /* ATC cleanup */
  1149. /* Verify TX hw is flushed */
  1150. bnx2x_tx_hw_flushed(bp, poll_cnt);
  1151. /* Wait 100ms (not adjusted according to platform) */
  1152. msleep(100);
  1153. /* Verify no pending pci transactions */
  1154. if (bnx2x_is_pcie_pending(bp->pdev))
  1155. BNX2X_ERR("PCIE Transactions still pending\n");
  1156. /* Debug */
  1157. bnx2x_hw_enable_status(bp);
  1158. /*
  1159. * Master enable - Due to WB DMAE writes performed before this
  1160. * register is re-initialized as part of the regular function init
  1161. */
  1162. REG_WR(bp, PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER, 1);
  1163. return 0;
  1164. }
  1165. static void bnx2x_hc_int_enable(struct bnx2x *bp)
  1166. {
  1167. int port = BP_PORT(bp);
  1168. u32 addr = port ? HC_REG_CONFIG_1 : HC_REG_CONFIG_0;
  1169. u32 val = REG_RD(bp, addr);
  1170. int msix = (bp->flags & USING_MSIX_FLAG) ? 1 : 0;
  1171. int msi = (bp->flags & USING_MSI_FLAG) ? 1 : 0;
  1172. if (msix) {
  1173. val &= ~(HC_CONFIG_0_REG_SINGLE_ISR_EN_0 |
  1174. HC_CONFIG_0_REG_INT_LINE_EN_0);
  1175. val |= (HC_CONFIG_0_REG_MSI_MSIX_INT_EN_0 |
  1176. HC_CONFIG_0_REG_ATTN_BIT_EN_0);
  1177. } else if (msi) {
  1178. val &= ~HC_CONFIG_0_REG_INT_LINE_EN_0;
  1179. val |= (HC_CONFIG_0_REG_SINGLE_ISR_EN_0 |
  1180. HC_CONFIG_0_REG_MSI_MSIX_INT_EN_0 |
  1181. HC_CONFIG_0_REG_ATTN_BIT_EN_0);
  1182. } else {
  1183. val |= (HC_CONFIG_0_REG_SINGLE_ISR_EN_0 |
  1184. HC_CONFIG_0_REG_MSI_MSIX_INT_EN_0 |
  1185. HC_CONFIG_0_REG_INT_LINE_EN_0 |
  1186. HC_CONFIG_0_REG_ATTN_BIT_EN_0);
  1187. if (!CHIP_IS_E1(bp)) {
  1188. DP(NETIF_MSG_INTR, "write %x to HC %d (addr 0x%x)\n",
  1189. val, port, addr);
  1190. REG_WR(bp, addr, val);
  1191. val &= ~HC_CONFIG_0_REG_MSI_MSIX_INT_EN_0;
  1192. }
  1193. }
  1194. if (CHIP_IS_E1(bp))
  1195. REG_WR(bp, HC_REG_INT_MASK + port*4, 0x1FFFF);
  1196. DP(NETIF_MSG_INTR, "write %x to HC %d (addr 0x%x) mode %s\n",
  1197. val, port, addr, (msix ? "MSI-X" : (msi ? "MSI" : "INTx")));
  1198. REG_WR(bp, addr, val);
  1199. /*
  1200. * Ensure that HC_CONFIG is written before leading/trailing edge config
  1201. */
  1202. mmiowb();
  1203. barrier();
  1204. if (!CHIP_IS_E1(bp)) {
  1205. /* init leading/trailing edge */
  1206. if (IS_MF(bp)) {
  1207. val = (0xee0f | (1 << (BP_VN(bp) + 4)));
  1208. if (bp->port.pmf)
  1209. /* enable nig and gpio3 attention */
  1210. val |= 0x1100;
  1211. } else
  1212. val = 0xffff;
  1213. REG_WR(bp, HC_REG_TRAILING_EDGE_0 + port*8, val);
  1214. REG_WR(bp, HC_REG_LEADING_EDGE_0 + port*8, val);
  1215. }
  1216. /* Make sure that interrupts are indeed enabled from here on */
  1217. mmiowb();
  1218. }
  1219. static void bnx2x_igu_int_enable(struct bnx2x *bp)
  1220. {
  1221. u32 val;
  1222. int msix = (bp->flags & USING_MSIX_FLAG) ? 1 : 0;
  1223. int msi = (bp->flags & USING_MSI_FLAG) ? 1 : 0;
  1224. val = REG_RD(bp, IGU_REG_PF_CONFIGURATION);
  1225. if (msix) {
  1226. val &= ~(IGU_PF_CONF_INT_LINE_EN |
  1227. IGU_PF_CONF_SINGLE_ISR_EN);
  1228. val |= (IGU_PF_CONF_FUNC_EN |
  1229. IGU_PF_CONF_MSI_MSIX_EN |
  1230. IGU_PF_CONF_ATTN_BIT_EN);
  1231. } else if (msi) {
  1232. val &= ~IGU_PF_CONF_INT_LINE_EN;
  1233. val |= (IGU_PF_CONF_FUNC_EN |
  1234. IGU_PF_CONF_MSI_MSIX_EN |
  1235. IGU_PF_CONF_ATTN_BIT_EN |
  1236. IGU_PF_CONF_SINGLE_ISR_EN);
  1237. } else {
  1238. val &= ~IGU_PF_CONF_MSI_MSIX_EN;
  1239. val |= (IGU_PF_CONF_FUNC_EN |
  1240. IGU_PF_CONF_INT_LINE_EN |
  1241. IGU_PF_CONF_ATTN_BIT_EN |
  1242. IGU_PF_CONF_SINGLE_ISR_EN);
  1243. }
  1244. DP(NETIF_MSG_INTR, "write 0x%x to IGU mode %s\n",
  1245. val, (msix ? "MSI-X" : (msi ? "MSI" : "INTx")));
  1246. REG_WR(bp, IGU_REG_PF_CONFIGURATION, val);
  1247. barrier();
  1248. /* init leading/trailing edge */
  1249. if (IS_MF(bp)) {
  1250. val = (0xee0f | (1 << (BP_VN(bp) + 4)));
  1251. if (bp->port.pmf)
  1252. /* enable nig and gpio3 attention */
  1253. val |= 0x1100;
  1254. } else
  1255. val = 0xffff;
  1256. REG_WR(bp, IGU_REG_TRAILING_EDGE_LATCH, val);
  1257. REG_WR(bp, IGU_REG_LEADING_EDGE_LATCH, val);
  1258. /* Make sure that interrupts are indeed enabled from here on */
  1259. mmiowb();
  1260. }
  1261. void bnx2x_int_enable(struct bnx2x *bp)
  1262. {
  1263. if (bp->common.int_block == INT_BLOCK_HC)
  1264. bnx2x_hc_int_enable(bp);
  1265. else
  1266. bnx2x_igu_int_enable(bp);
  1267. }
  1268. static void bnx2x_hc_int_disable(struct bnx2x *bp)
  1269. {
  1270. int port = BP_PORT(bp);
  1271. u32 addr = port ? HC_REG_CONFIG_1 : HC_REG_CONFIG_0;
  1272. u32 val = REG_RD(bp, addr);
  1273. /*
  1274. * in E1 we must use only PCI configuration space to disable
  1275. * MSI/MSIX capablility
  1276. * It's forbitten to disable IGU_PF_CONF_MSI_MSIX_EN in HC block
  1277. */
  1278. if (CHIP_IS_E1(bp)) {
  1279. /* Since IGU_PF_CONF_MSI_MSIX_EN still always on
  1280. * Use mask register to prevent from HC sending interrupts
  1281. * after we exit the function
  1282. */
  1283. REG_WR(bp, HC_REG_INT_MASK + port*4, 0);
  1284. val &= ~(HC_CONFIG_0_REG_SINGLE_ISR_EN_0 |
  1285. HC_CONFIG_0_REG_INT_LINE_EN_0 |
  1286. HC_CONFIG_0_REG_ATTN_BIT_EN_0);
  1287. } else
  1288. val &= ~(HC_CONFIG_0_REG_SINGLE_ISR_EN_0 |
  1289. HC_CONFIG_0_REG_MSI_MSIX_INT_EN_0 |
  1290. HC_CONFIG_0_REG_INT_LINE_EN_0 |
  1291. HC_CONFIG_0_REG_ATTN_BIT_EN_0);
  1292. DP(NETIF_MSG_INTR, "write %x to HC %d (addr 0x%x)\n",
  1293. val, port, addr);
  1294. /* flush all outstanding writes */
  1295. mmiowb();
  1296. REG_WR(bp, addr, val);
  1297. if (REG_RD(bp, addr) != val)
  1298. BNX2X_ERR("BUG! proper val not read from IGU!\n");
  1299. }
  1300. static void bnx2x_igu_int_disable(struct bnx2x *bp)
  1301. {
  1302. u32 val = REG_RD(bp, IGU_REG_PF_CONFIGURATION);
  1303. val &= ~(IGU_PF_CONF_MSI_MSIX_EN |
  1304. IGU_PF_CONF_INT_LINE_EN |
  1305. IGU_PF_CONF_ATTN_BIT_EN);
  1306. DP(NETIF_MSG_INTR, "write %x to IGU\n", val);
  1307. /* flush all outstanding writes */
  1308. mmiowb();
  1309. REG_WR(bp, IGU_REG_PF_CONFIGURATION, val);
  1310. if (REG_RD(bp, IGU_REG_PF_CONFIGURATION) != val)
  1311. BNX2X_ERR("BUG! proper val not read from IGU!\n");
  1312. }
  1313. void bnx2x_int_disable(struct bnx2x *bp)
  1314. {
  1315. if (bp->common.int_block == INT_BLOCK_HC)
  1316. bnx2x_hc_int_disable(bp);
  1317. else
  1318. bnx2x_igu_int_disable(bp);
  1319. }
  1320. void bnx2x_int_disable_sync(struct bnx2x *bp, int disable_hw)
  1321. {
  1322. int msix = (bp->flags & USING_MSIX_FLAG) ? 1 : 0;
  1323. int i, offset;
  1324. if (disable_hw)
  1325. /* prevent the HW from sending interrupts */
  1326. bnx2x_int_disable(bp);
  1327. /* make sure all ISRs are done */
  1328. if (msix) {
  1329. synchronize_irq(bp->msix_table[0].vector);
  1330. offset = 1;
  1331. #ifdef BCM_CNIC
  1332. offset++;
  1333. #endif
  1334. for_each_eth_queue(bp, i)
  1335. synchronize_irq(bp->msix_table[offset++].vector);
  1336. } else
  1337. synchronize_irq(bp->pdev->irq);
  1338. /* make sure sp_task is not running */
  1339. cancel_delayed_work(&bp->sp_task);
  1340. cancel_delayed_work(&bp->period_task);
  1341. flush_workqueue(bnx2x_wq);
  1342. }
  1343. /* fast path */
  1344. /*
  1345. * General service functions
  1346. */
  1347. /* Return true if succeeded to acquire the lock */
  1348. static bool bnx2x_trylock_hw_lock(struct bnx2x *bp, u32 resource)
  1349. {
  1350. u32 lock_status;
  1351. u32 resource_bit = (1 << resource);
  1352. int func = BP_FUNC(bp);
  1353. u32 hw_lock_control_reg;
  1354. DP(NETIF_MSG_HW, "Trying to take a lock on resource %d\n", resource);
  1355. /* Validating that the resource is within range */
  1356. if (resource > HW_LOCK_MAX_RESOURCE_VALUE) {
  1357. DP(NETIF_MSG_HW,
  1358. "resource(0x%x) > HW_LOCK_MAX_RESOURCE_VALUE(0x%x)\n",
  1359. resource, HW_LOCK_MAX_RESOURCE_VALUE);
  1360. return false;
  1361. }
  1362. if (func <= 5)
  1363. hw_lock_control_reg = (MISC_REG_DRIVER_CONTROL_1 + func*8);
  1364. else
  1365. hw_lock_control_reg =
  1366. (MISC_REG_DRIVER_CONTROL_7 + (func - 6)*8);
  1367. /* Try to acquire the lock */
  1368. REG_WR(bp, hw_lock_control_reg + 4, resource_bit);
  1369. lock_status = REG_RD(bp, hw_lock_control_reg);
  1370. if (lock_status & resource_bit)
  1371. return true;
  1372. DP(NETIF_MSG_HW, "Failed to get a lock on resource %d\n", resource);
  1373. return false;
  1374. }
  1375. /**
  1376. * bnx2x_get_leader_lock_resource - get the recovery leader resource id
  1377. *
  1378. * @bp: driver handle
  1379. *
  1380. * Returns the recovery leader resource id according to the engine this function
  1381. * belongs to. Currently only only 2 engines is supported.
  1382. */
  1383. static inline int bnx2x_get_leader_lock_resource(struct bnx2x *bp)
  1384. {
  1385. if (BP_PATH(bp))
  1386. return HW_LOCK_RESOURCE_RECOVERY_LEADER_1;
  1387. else
  1388. return HW_LOCK_RESOURCE_RECOVERY_LEADER_0;
  1389. }
  1390. /**
  1391. * bnx2x_trylock_leader_lock- try to aquire a leader lock.
  1392. *
  1393. * @bp: driver handle
  1394. *
  1395. * Tries to aquire a leader lock for cuurent engine.
  1396. */
  1397. static inline bool bnx2x_trylock_leader_lock(struct bnx2x *bp)
  1398. {
  1399. return bnx2x_trylock_hw_lock(bp, bnx2x_get_leader_lock_resource(bp));
  1400. }
  1401. #ifdef BCM_CNIC
  1402. static void bnx2x_cnic_cfc_comp(struct bnx2x *bp, int cid, u8 err);
  1403. #endif
  1404. void bnx2x_sp_event(struct bnx2x_fastpath *fp, union eth_rx_cqe *rr_cqe)
  1405. {
  1406. struct bnx2x *bp = fp->bp;
  1407. int cid = SW_CID(rr_cqe->ramrod_cqe.conn_and_cmd_data);
  1408. int command = CQE_CMD(rr_cqe->ramrod_cqe.conn_and_cmd_data);
  1409. enum bnx2x_queue_cmd drv_cmd = BNX2X_Q_CMD_MAX;
  1410. struct bnx2x_queue_sp_obj *q_obj = &fp->q_obj;
  1411. DP(BNX2X_MSG_SP,
  1412. "fp %d cid %d got ramrod #%d state is %x type is %d\n",
  1413. fp->index, cid, command, bp->state,
  1414. rr_cqe->ramrod_cqe.ramrod_type);
  1415. switch (command) {
  1416. case (RAMROD_CMD_ID_ETH_CLIENT_UPDATE):
  1417. DP(BNX2X_MSG_SP, "got UPDATE ramrod. CID %d\n", cid);
  1418. drv_cmd = BNX2X_Q_CMD_UPDATE;
  1419. break;
  1420. case (RAMROD_CMD_ID_ETH_CLIENT_SETUP):
  1421. DP(BNX2X_MSG_SP, "got MULTI[%d] setup ramrod\n", cid);
  1422. drv_cmd = BNX2X_Q_CMD_SETUP;
  1423. break;
  1424. case (RAMROD_CMD_ID_ETH_TX_QUEUE_SETUP):
  1425. DP(NETIF_MSG_IFUP, "got MULTI[%d] tx-only setup ramrod\n", cid);
  1426. drv_cmd = BNX2X_Q_CMD_SETUP_TX_ONLY;
  1427. break;
  1428. case (RAMROD_CMD_ID_ETH_HALT):
  1429. DP(BNX2X_MSG_SP, "got MULTI[%d] halt ramrod\n", cid);
  1430. drv_cmd = BNX2X_Q_CMD_HALT;
  1431. break;
  1432. case (RAMROD_CMD_ID_ETH_TERMINATE):
  1433. DP(BNX2X_MSG_SP, "got MULTI[%d] teminate ramrod\n", cid);
  1434. drv_cmd = BNX2X_Q_CMD_TERMINATE;
  1435. break;
  1436. case (RAMROD_CMD_ID_ETH_EMPTY):
  1437. DP(BNX2X_MSG_SP, "got MULTI[%d] empty ramrod\n", cid);
  1438. drv_cmd = BNX2X_Q_CMD_EMPTY;
  1439. break;
  1440. default:
  1441. BNX2X_ERR("unexpected MC reply (%d) on fp[%d]\n",
  1442. command, fp->index);
  1443. return;
  1444. }
  1445. if ((drv_cmd != BNX2X_Q_CMD_MAX) &&
  1446. q_obj->complete_cmd(bp, q_obj, drv_cmd))
  1447. /* q_obj->complete_cmd() failure means that this was
  1448. * an unexpected completion.
  1449. *
  1450. * In this case we don't want to increase the bp->spq_left
  1451. * because apparently we haven't sent this command the first
  1452. * place.
  1453. */
  1454. #ifdef BNX2X_STOP_ON_ERROR
  1455. bnx2x_panic();
  1456. #else
  1457. return;
  1458. #endif
  1459. smp_mb__before_atomic_inc();
  1460. atomic_inc(&bp->cq_spq_left);
  1461. /* push the change in bp->spq_left and towards the memory */
  1462. smp_mb__after_atomic_inc();
  1463. DP(BNX2X_MSG_SP, "bp->cq_spq_left %x\n", atomic_read(&bp->cq_spq_left));
  1464. return;
  1465. }
  1466. void bnx2x_update_rx_prod(struct bnx2x *bp, struct bnx2x_fastpath *fp,
  1467. u16 bd_prod, u16 rx_comp_prod, u16 rx_sge_prod)
  1468. {
  1469. u32 start = BAR_USTRORM_INTMEM + fp->ustorm_rx_prods_offset;
  1470. bnx2x_update_rx_prod_gen(bp, fp, bd_prod, rx_comp_prod, rx_sge_prod,
  1471. start);
  1472. }
  1473. irqreturn_t bnx2x_interrupt(int irq, void *dev_instance)
  1474. {
  1475. struct bnx2x *bp = netdev_priv(dev_instance);
  1476. u16 status = bnx2x_ack_int(bp);
  1477. u16 mask;
  1478. int i;
  1479. u8 cos;
  1480. /* Return here if interrupt is shared and it's not for us */
  1481. if (unlikely(status == 0)) {
  1482. DP(NETIF_MSG_INTR, "not our interrupt!\n");
  1483. return IRQ_NONE;
  1484. }
  1485. DP(NETIF_MSG_INTR, "got an interrupt status 0x%x\n", status);
  1486. #ifdef BNX2X_STOP_ON_ERROR
  1487. if (unlikely(bp->panic))
  1488. return IRQ_HANDLED;
  1489. #endif
  1490. for_each_eth_queue(bp, i) {
  1491. struct bnx2x_fastpath *fp = &bp->fp[i];
  1492. mask = 0x2 << (fp->index + CNIC_PRESENT);
  1493. if (status & mask) {
  1494. /* Handle Rx or Tx according to SB id */
  1495. prefetch(fp->rx_cons_sb);
  1496. for_each_cos_in_tx_queue(fp, cos)
  1497. prefetch(fp->txdata[cos].tx_cons_sb);
  1498. prefetch(&fp->sb_running_index[SM_RX_ID]);
  1499. napi_schedule(&bnx2x_fp(bp, fp->index, napi));
  1500. status &= ~mask;
  1501. }
  1502. }
  1503. #ifdef BCM_CNIC
  1504. mask = 0x2;
  1505. if (status & (mask | 0x1)) {
  1506. struct cnic_ops *c_ops = NULL;
  1507. if (likely(bp->state == BNX2X_STATE_OPEN)) {
  1508. rcu_read_lock();
  1509. c_ops = rcu_dereference(bp->cnic_ops);
  1510. if (c_ops)
  1511. c_ops->cnic_handler(bp->cnic_data, NULL);
  1512. rcu_read_unlock();
  1513. }
  1514. status &= ~mask;
  1515. }
  1516. #endif
  1517. if (unlikely(status & 0x1)) {
  1518. queue_delayed_work(bnx2x_wq, &bp->sp_task, 0);
  1519. status &= ~0x1;
  1520. if (!status)
  1521. return IRQ_HANDLED;
  1522. }
  1523. if (unlikely(status))
  1524. DP(NETIF_MSG_INTR, "got an unknown interrupt! (status 0x%x)\n",
  1525. status);
  1526. return IRQ_HANDLED;
  1527. }
  1528. /* Link */
  1529. /*
  1530. * General service functions
  1531. */
  1532. int bnx2x_acquire_hw_lock(struct bnx2x *bp, u32 resource)
  1533. {
  1534. u32 lock_status;
  1535. u32 resource_bit = (1 << resource);
  1536. int func = BP_FUNC(bp);
  1537. u32 hw_lock_control_reg;
  1538. int cnt;
  1539. /* Validating that the resource is within range */
  1540. if (resource > HW_LOCK_MAX_RESOURCE_VALUE) {
  1541. DP(NETIF_MSG_HW,
  1542. "resource(0x%x) > HW_LOCK_MAX_RESOURCE_VALUE(0x%x)\n",
  1543. resource, HW_LOCK_MAX_RESOURCE_VALUE);
  1544. return -EINVAL;
  1545. }
  1546. if (func <= 5) {
  1547. hw_lock_control_reg = (MISC_REG_DRIVER_CONTROL_1 + func*8);
  1548. } else {
  1549. hw_lock_control_reg =
  1550. (MISC_REG_DRIVER_CONTROL_7 + (func - 6)*8);
  1551. }
  1552. /* Validating that the resource is not already taken */
  1553. lock_status = REG_RD(bp, hw_lock_control_reg);
  1554. if (lock_status & resource_bit) {
  1555. DP(NETIF_MSG_HW, "lock_status 0x%x resource_bit 0x%x\n",
  1556. lock_status, resource_bit);
  1557. return -EEXIST;
  1558. }
  1559. /* Try for 5 second every 5ms */
  1560. for (cnt = 0; cnt < 1000; cnt++) {
  1561. /* Try to acquire the lock */
  1562. REG_WR(bp, hw_lock_control_reg + 4, resource_bit);
  1563. lock_status = REG_RD(bp, hw_lock_control_reg);
  1564. if (lock_status & resource_bit)
  1565. return 0;
  1566. msleep(5);
  1567. }
  1568. DP(NETIF_MSG_HW, "Timeout\n");
  1569. return -EAGAIN;
  1570. }
  1571. int bnx2x_release_leader_lock(struct bnx2x *bp)
  1572. {
  1573. return bnx2x_release_hw_lock(bp, bnx2x_get_leader_lock_resource(bp));
  1574. }
  1575. int bnx2x_release_hw_lock(struct bnx2x *bp, u32 resource)
  1576. {
  1577. u32 lock_status;
  1578. u32 resource_bit = (1 << resource);
  1579. int func = BP_FUNC(bp);
  1580. u32 hw_lock_control_reg;
  1581. DP(NETIF_MSG_HW, "Releasing a lock on resource %d\n", resource);
  1582. /* Validating that the resource is within range */
  1583. if (resource > HW_LOCK_MAX_RESOURCE_VALUE) {
  1584. DP(NETIF_MSG_HW,
  1585. "resource(0x%x) > HW_LOCK_MAX_RESOURCE_VALUE(0x%x)\n",
  1586. resource, HW_LOCK_MAX_RESOURCE_VALUE);
  1587. return -EINVAL;
  1588. }
  1589. if (func <= 5) {
  1590. hw_lock_control_reg = (MISC_REG_DRIVER_CONTROL_1 + func*8);
  1591. } else {
  1592. hw_lock_control_reg =
  1593. (MISC_REG_DRIVER_CONTROL_7 + (func - 6)*8);
  1594. }
  1595. /* Validating that the resource is currently taken */
  1596. lock_status = REG_RD(bp, hw_lock_control_reg);
  1597. if (!(lock_status & resource_bit)) {
  1598. DP(NETIF_MSG_HW, "lock_status 0x%x resource_bit 0x%x\n",
  1599. lock_status, resource_bit);
  1600. return -EFAULT;
  1601. }
  1602. REG_WR(bp, hw_lock_control_reg, resource_bit);
  1603. return 0;
  1604. }
  1605. int bnx2x_get_gpio(struct bnx2x *bp, int gpio_num, u8 port)
  1606. {
  1607. /* The GPIO should be swapped if swap register is set and active */
  1608. int gpio_port = (REG_RD(bp, NIG_REG_PORT_SWAP) &&
  1609. REG_RD(bp, NIG_REG_STRAP_OVERRIDE)) ^ port;
  1610. int gpio_shift = gpio_num +
  1611. (gpio_port ? MISC_REGISTERS_GPIO_PORT_SHIFT : 0);
  1612. u32 gpio_mask = (1 << gpio_shift);
  1613. u32 gpio_reg;
  1614. int value;
  1615. if (gpio_num > MISC_REGISTERS_GPIO_3) {
  1616. BNX2X_ERR("Invalid GPIO %d\n", gpio_num);
  1617. return -EINVAL;
  1618. }
  1619. /* read GPIO value */
  1620. gpio_reg = REG_RD(bp, MISC_REG_GPIO);
  1621. /* get the requested pin value */
  1622. if ((gpio_reg & gpio_mask) == gpio_mask)
  1623. value = 1;
  1624. else
  1625. value = 0;
  1626. DP(NETIF_MSG_LINK, "pin %d value 0x%x\n", gpio_num, value);
  1627. return value;
  1628. }
  1629. int bnx2x_set_gpio(struct bnx2x *bp, int gpio_num, u32 mode, u8 port)
  1630. {
  1631. /* The GPIO should be swapped if swap register is set and active */
  1632. int gpio_port = (REG_RD(bp, NIG_REG_PORT_SWAP) &&
  1633. REG_RD(bp, NIG_REG_STRAP_OVERRIDE)) ^ port;
  1634. int gpio_shift = gpio_num +
  1635. (gpio_port ? MISC_REGISTERS_GPIO_PORT_SHIFT : 0);
  1636. u32 gpio_mask = (1 << gpio_shift);
  1637. u32 gpio_reg;
  1638. if (gpio_num > MISC_REGISTERS_GPIO_3) {
  1639. BNX2X_ERR("Invalid GPIO %d\n", gpio_num);
  1640. return -EINVAL;
  1641. }
  1642. bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_GPIO);
  1643. /* read GPIO and mask except the float bits */
  1644. gpio_reg = (REG_RD(bp, MISC_REG_GPIO) & MISC_REGISTERS_GPIO_FLOAT);
  1645. switch (mode) {
  1646. case MISC_REGISTERS_GPIO_OUTPUT_LOW:
  1647. DP(NETIF_MSG_LINK, "Set GPIO %d (shift %d) -> output low\n",
  1648. gpio_num, gpio_shift);
  1649. /* clear FLOAT and set CLR */
  1650. gpio_reg &= ~(gpio_mask << MISC_REGISTERS_GPIO_FLOAT_POS);
  1651. gpio_reg |= (gpio_mask << MISC_REGISTERS_GPIO_CLR_POS);
  1652. break;
  1653. case MISC_REGISTERS_GPIO_OUTPUT_HIGH:
  1654. DP(NETIF_MSG_LINK, "Set GPIO %d (shift %d) -> output high\n",
  1655. gpio_num, gpio_shift);
  1656. /* clear FLOAT and set SET */
  1657. gpio_reg &= ~(gpio_mask << MISC_REGISTERS_GPIO_FLOAT_POS);
  1658. gpio_reg |= (gpio_mask << MISC_REGISTERS_GPIO_SET_POS);
  1659. break;
  1660. case MISC_REGISTERS_GPIO_INPUT_HI_Z:
  1661. DP(NETIF_MSG_LINK, "Set GPIO %d (shift %d) -> input\n",
  1662. gpio_num, gpio_shift);
  1663. /* set FLOAT */
  1664. gpio_reg |= (gpio_mask << MISC_REGISTERS_GPIO_FLOAT_POS);
  1665. break;
  1666. default:
  1667. break;
  1668. }
  1669. REG_WR(bp, MISC_REG_GPIO, gpio_reg);
  1670. bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_GPIO);
  1671. return 0;
  1672. }
  1673. int bnx2x_set_mult_gpio(struct bnx2x *bp, u8 pins, u32 mode)
  1674. {
  1675. u32 gpio_reg = 0;
  1676. int rc = 0;
  1677. /* Any port swapping should be handled by caller. */
  1678. bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_GPIO);
  1679. /* read GPIO and mask except the float bits */
  1680. gpio_reg = REG_RD(bp, MISC_REG_GPIO);
  1681. gpio_reg &= ~(pins << MISC_REGISTERS_GPIO_FLOAT_POS);
  1682. gpio_reg &= ~(pins << MISC_REGISTERS_GPIO_CLR_POS);
  1683. gpio_reg &= ~(pins << MISC_REGISTERS_GPIO_SET_POS);
  1684. switch (mode) {
  1685. case MISC_REGISTERS_GPIO_OUTPUT_LOW:
  1686. DP(NETIF_MSG_LINK, "Set GPIO 0x%x -> output low\n", pins);
  1687. /* set CLR */
  1688. gpio_reg |= (pins << MISC_REGISTERS_GPIO_CLR_POS);
  1689. break;
  1690. case MISC_REGISTERS_GPIO_OUTPUT_HIGH:
  1691. DP(NETIF_MSG_LINK, "Set GPIO 0x%x -> output high\n", pins);
  1692. /* set SET */
  1693. gpio_reg |= (pins << MISC_REGISTERS_GPIO_SET_POS);
  1694. break;
  1695. case MISC_REGISTERS_GPIO_INPUT_HI_Z:
  1696. DP(NETIF_MSG_LINK, "Set GPIO 0x%x -> input\n", pins);
  1697. /* set FLOAT */
  1698. gpio_reg |= (pins << MISC_REGISTERS_GPIO_FLOAT_POS);
  1699. break;
  1700. default:
  1701. BNX2X_ERR("Invalid GPIO mode assignment %d\n", mode);
  1702. rc = -EINVAL;
  1703. break;
  1704. }
  1705. if (rc == 0)
  1706. REG_WR(bp, MISC_REG_GPIO, gpio_reg);
  1707. bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_GPIO);
  1708. return rc;
  1709. }
  1710. int bnx2x_set_gpio_int(struct bnx2x *bp, int gpio_num, u32 mode, u8 port)
  1711. {
  1712. /* The GPIO should be swapped if swap register is set and active */
  1713. int gpio_port = (REG_RD(bp, NIG_REG_PORT_SWAP) &&
  1714. REG_RD(bp, NIG_REG_STRAP_OVERRIDE)) ^ port;
  1715. int gpio_shift = gpio_num +
  1716. (gpio_port ? MISC_REGISTERS_GPIO_PORT_SHIFT : 0);
  1717. u32 gpio_mask = (1 << gpio_shift);
  1718. u32 gpio_reg;
  1719. if (gpio_num > MISC_REGISTERS_GPIO_3) {
  1720. BNX2X_ERR("Invalid GPIO %d\n", gpio_num);
  1721. return -EINVAL;
  1722. }
  1723. bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_GPIO);
  1724. /* read GPIO int */
  1725. gpio_reg = REG_RD(bp, MISC_REG_GPIO_INT);
  1726. switch (mode) {
  1727. case MISC_REGISTERS_GPIO_INT_OUTPUT_CLR:
  1728. DP(NETIF_MSG_LINK, "Clear GPIO INT %d (shift %d) -> "
  1729. "output low\n", gpio_num, gpio_shift);
  1730. /* clear SET and set CLR */
  1731. gpio_reg &= ~(gpio_mask << MISC_REGISTERS_GPIO_INT_SET_POS);
  1732. gpio_reg |= (gpio_mask << MISC_REGISTERS_GPIO_INT_CLR_POS);
  1733. break;
  1734. case MISC_REGISTERS_GPIO_INT_OUTPUT_SET:
  1735. DP(NETIF_MSG_LINK, "Set GPIO INT %d (shift %d) -> "
  1736. "output high\n", gpio_num, gpio_shift);
  1737. /* clear CLR and set SET */
  1738. gpio_reg &= ~(gpio_mask << MISC_REGISTERS_GPIO_INT_CLR_POS);
  1739. gpio_reg |= (gpio_mask << MISC_REGISTERS_GPIO_INT_SET_POS);
  1740. break;
  1741. default:
  1742. break;
  1743. }
  1744. REG_WR(bp, MISC_REG_GPIO_INT, gpio_reg);
  1745. bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_GPIO);
  1746. return 0;
  1747. }
  1748. static int bnx2x_set_spio(struct bnx2x *bp, int spio_num, u32 mode)
  1749. {
  1750. u32 spio_mask = (1 << spio_num);
  1751. u32 spio_reg;
  1752. if ((spio_num < MISC_REGISTERS_SPIO_4) ||
  1753. (spio_num > MISC_REGISTERS_SPIO_7)) {
  1754. BNX2X_ERR("Invalid SPIO %d\n", spio_num);
  1755. return -EINVAL;
  1756. }
  1757. bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_SPIO);
  1758. /* read SPIO and mask except the float bits */
  1759. spio_reg = (REG_RD(bp, MISC_REG_SPIO) & MISC_REGISTERS_SPIO_FLOAT);
  1760. switch (mode) {
  1761. case MISC_REGISTERS_SPIO_OUTPUT_LOW:
  1762. DP(NETIF_MSG_LINK, "Set SPIO %d -> output low\n", spio_num);
  1763. /* clear FLOAT and set CLR */
  1764. spio_reg &= ~(spio_mask << MISC_REGISTERS_SPIO_FLOAT_POS);
  1765. spio_reg |= (spio_mask << MISC_REGISTERS_SPIO_CLR_POS);
  1766. break;
  1767. case MISC_REGISTERS_SPIO_OUTPUT_HIGH:
  1768. DP(NETIF_MSG_LINK, "Set SPIO %d -> output high\n", spio_num);
  1769. /* clear FLOAT and set SET */
  1770. spio_reg &= ~(spio_mask << MISC_REGISTERS_SPIO_FLOAT_POS);
  1771. spio_reg |= (spio_mask << MISC_REGISTERS_SPIO_SET_POS);
  1772. break;
  1773. case MISC_REGISTERS_SPIO_INPUT_HI_Z:
  1774. DP(NETIF_MSG_LINK, "Set SPIO %d -> input\n", spio_num);
  1775. /* set FLOAT */
  1776. spio_reg |= (spio_mask << MISC_REGISTERS_SPIO_FLOAT_POS);
  1777. break;
  1778. default:
  1779. break;
  1780. }
  1781. REG_WR(bp, MISC_REG_SPIO, spio_reg);
  1782. bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_SPIO);
  1783. return 0;
  1784. }
  1785. void bnx2x_calc_fc_adv(struct bnx2x *bp)
  1786. {
  1787. u8 cfg_idx = bnx2x_get_link_cfg_idx(bp);
  1788. switch (bp->link_vars.ieee_fc &
  1789. MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_MASK) {
  1790. case MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_NONE:
  1791. bp->port.advertising[cfg_idx] &= ~(ADVERTISED_Asym_Pause |
  1792. ADVERTISED_Pause);
  1793. break;
  1794. case MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH:
  1795. bp->port.advertising[cfg_idx] |= (ADVERTISED_Asym_Pause |
  1796. ADVERTISED_Pause);
  1797. break;
  1798. case MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC:
  1799. bp->port.advertising[cfg_idx] |= ADVERTISED_Asym_Pause;
  1800. break;
  1801. default:
  1802. bp->port.advertising[cfg_idx] &= ~(ADVERTISED_Asym_Pause |
  1803. ADVERTISED_Pause);
  1804. break;
  1805. }
  1806. }
  1807. u8 bnx2x_initial_phy_init(struct bnx2x *bp, int load_mode)
  1808. {
  1809. if (!BP_NOMCP(bp)) {
  1810. u8 rc;
  1811. int cfx_idx = bnx2x_get_link_cfg_idx(bp);
  1812. u16 req_line_speed = bp->link_params.req_line_speed[cfx_idx];
  1813. /*
  1814. * Initialize link parameters structure variables
  1815. * It is recommended to turn off RX FC for jumbo frames
  1816. * for better performance
  1817. */
  1818. if (CHIP_IS_E1x(bp) && (bp->dev->mtu > 5000))
  1819. bp->link_params.req_fc_auto_adv = BNX2X_FLOW_CTRL_TX;
  1820. else
  1821. bp->link_params.req_fc_auto_adv = BNX2X_FLOW_CTRL_BOTH;
  1822. bnx2x_acquire_phy_lock(bp);
  1823. if (load_mode == LOAD_DIAG) {
  1824. struct link_params *lp = &bp->link_params;
  1825. lp->loopback_mode = LOOPBACK_XGXS;
  1826. /* do PHY loopback at 10G speed, if possible */
  1827. if (lp->req_line_speed[cfx_idx] < SPEED_10000) {
  1828. if (lp->speed_cap_mask[cfx_idx] &
  1829. PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)
  1830. lp->req_line_speed[cfx_idx] =
  1831. SPEED_10000;
  1832. else
  1833. lp->req_line_speed[cfx_idx] =
  1834. SPEED_1000;
  1835. }
  1836. }
  1837. rc = bnx2x_phy_init(&bp->link_params, &bp->link_vars);
  1838. bnx2x_release_phy_lock(bp);
  1839. bnx2x_calc_fc_adv(bp);
  1840. if (CHIP_REV_IS_SLOW(bp) && bp->link_vars.link_up) {
  1841. bnx2x_stats_handle(bp, STATS_EVENT_LINK_UP);
  1842. bnx2x_link_report(bp);
  1843. } else
  1844. queue_delayed_work(bnx2x_wq, &bp->period_task, 0);
  1845. bp->link_params.req_line_speed[cfx_idx] = req_line_speed;
  1846. return rc;
  1847. }
  1848. BNX2X_ERR("Bootcode is missing - can not initialize link\n");
  1849. return -EINVAL;
  1850. }
  1851. void bnx2x_link_set(struct bnx2x *bp)
  1852. {
  1853. if (!BP_NOMCP(bp)) {
  1854. bnx2x_acquire_phy_lock(bp);
  1855. bnx2x_link_reset(&bp->link_params, &bp->link_vars, 1);
  1856. bnx2x_phy_init(&bp->link_params, &bp->link_vars);
  1857. bnx2x_release_phy_lock(bp);
  1858. bnx2x_calc_fc_adv(bp);
  1859. } else
  1860. BNX2X_ERR("Bootcode is missing - can not set link\n");
  1861. }
  1862. static void bnx2x__link_reset(struct bnx2x *bp)
  1863. {
  1864. if (!BP_NOMCP(bp)) {
  1865. bnx2x_acquire_phy_lock(bp);
  1866. bnx2x_link_reset(&bp->link_params, &bp->link_vars, 1);
  1867. bnx2x_release_phy_lock(bp);
  1868. } else
  1869. BNX2X_ERR("Bootcode is missing - can not reset link\n");
  1870. }
  1871. u8 bnx2x_link_test(struct bnx2x *bp, u8 is_serdes)
  1872. {
  1873. u8 rc = 0;
  1874. if (!BP_NOMCP(bp)) {
  1875. bnx2x_acquire_phy_lock(bp);
  1876. rc = bnx2x_test_link(&bp->link_params, &bp->link_vars,
  1877. is_serdes);
  1878. bnx2x_release_phy_lock(bp);
  1879. } else
  1880. BNX2X_ERR("Bootcode is missing - can not test link\n");
  1881. return rc;
  1882. }
  1883. static void bnx2x_init_port_minmax(struct bnx2x *bp)
  1884. {
  1885. u32 r_param = bp->link_vars.line_speed / 8;
  1886. u32 fair_periodic_timeout_usec;
  1887. u32 t_fair;
  1888. memset(&(bp->cmng.rs_vars), 0,
  1889. sizeof(struct rate_shaping_vars_per_port));
  1890. memset(&(bp->cmng.fair_vars), 0, sizeof(struct fairness_vars_per_port));
  1891. /* 100 usec in SDM ticks = 25 since each tick is 4 usec */
  1892. bp->cmng.rs_vars.rs_periodic_timeout = RS_PERIODIC_TIMEOUT_USEC / 4;
  1893. /* this is the threshold below which no timer arming will occur
  1894. 1.25 coefficient is for the threshold to be a little bigger
  1895. than the real time, to compensate for timer in-accuracy */
  1896. bp->cmng.rs_vars.rs_threshold =
  1897. (RS_PERIODIC_TIMEOUT_USEC * r_param * 5) / 4;
  1898. /* resolution of fairness timer */
  1899. fair_periodic_timeout_usec = QM_ARB_BYTES / r_param;
  1900. /* for 10G it is 1000usec. for 1G it is 10000usec. */
  1901. t_fair = T_FAIR_COEF / bp->link_vars.line_speed;
  1902. /* this is the threshold below which we won't arm the timer anymore */
  1903. bp->cmng.fair_vars.fair_threshold = QM_ARB_BYTES;
  1904. /* we multiply by 1e3/8 to get bytes/msec.
  1905. We don't want the credits to pass a credit
  1906. of the t_fair*FAIR_MEM (algorithm resolution) */
  1907. bp->cmng.fair_vars.upper_bound = r_param * t_fair * FAIR_MEM;
  1908. /* since each tick is 4 usec */
  1909. bp->cmng.fair_vars.fairness_timeout = fair_periodic_timeout_usec / 4;
  1910. }
  1911. /* Calculates the sum of vn_min_rates.
  1912. It's needed for further normalizing of the min_rates.
  1913. Returns:
  1914. sum of vn_min_rates.
  1915. or
  1916. 0 - if all the min_rates are 0.
  1917. In the later case fainess algorithm should be deactivated.
  1918. If not all min_rates are zero then those that are zeroes will be set to 1.
  1919. */
  1920. static void bnx2x_calc_vn_weight_sum(struct bnx2x *bp)
  1921. {
  1922. int all_zero = 1;
  1923. int vn;
  1924. bp->vn_weight_sum = 0;
  1925. for (vn = VN_0; vn < BP_MAX_VN_NUM(bp); vn++) {
  1926. u32 vn_cfg = bp->mf_config[vn];
  1927. u32 vn_min_rate = ((vn_cfg & FUNC_MF_CFG_MIN_BW_MASK) >>
  1928. FUNC_MF_CFG_MIN_BW_SHIFT) * 100;
  1929. /* Skip hidden vns */
  1930. if (vn_cfg & FUNC_MF_CFG_FUNC_HIDE)
  1931. continue;
  1932. /* If min rate is zero - set it to 1 */
  1933. if (!vn_min_rate)
  1934. vn_min_rate = DEF_MIN_RATE;
  1935. else
  1936. all_zero = 0;
  1937. bp->vn_weight_sum += vn_min_rate;
  1938. }
  1939. /* if ETS or all min rates are zeros - disable fairness */
  1940. if (BNX2X_IS_ETS_ENABLED(bp)) {
  1941. bp->cmng.flags.cmng_enables &=
  1942. ~CMNG_FLAGS_PER_PORT_FAIRNESS_VN;
  1943. DP(NETIF_MSG_IFUP, "Fairness will be disabled due to ETS\n");
  1944. } else if (all_zero) {
  1945. bp->cmng.flags.cmng_enables &=
  1946. ~CMNG_FLAGS_PER_PORT_FAIRNESS_VN;
  1947. DP(NETIF_MSG_IFUP, "All MIN values are zeroes"
  1948. " fairness will be disabled\n");
  1949. } else
  1950. bp->cmng.flags.cmng_enables |=
  1951. CMNG_FLAGS_PER_PORT_FAIRNESS_VN;
  1952. }
  1953. static void bnx2x_init_vn_minmax(struct bnx2x *bp, int vn)
  1954. {
  1955. struct rate_shaping_vars_per_vn m_rs_vn;
  1956. struct fairness_vars_per_vn m_fair_vn;
  1957. u32 vn_cfg = bp->mf_config[vn];
  1958. int func = func_by_vn(bp, vn);
  1959. u16 vn_min_rate, vn_max_rate;
  1960. int i;
  1961. /* If function is hidden - set min and max to zeroes */
  1962. if (vn_cfg & FUNC_MF_CFG_FUNC_HIDE) {
  1963. vn_min_rate = 0;
  1964. vn_max_rate = 0;
  1965. } else {
  1966. u32 maxCfg = bnx2x_extract_max_cfg(bp, vn_cfg);
  1967. vn_min_rate = ((vn_cfg & FUNC_MF_CFG_MIN_BW_MASK) >>
  1968. FUNC_MF_CFG_MIN_BW_SHIFT) * 100;
  1969. /* If fairness is enabled (not all min rates are zeroes) and
  1970. if current min rate is zero - set it to 1.
  1971. This is a requirement of the algorithm. */
  1972. if (bp->vn_weight_sum && (vn_min_rate == 0))
  1973. vn_min_rate = DEF_MIN_RATE;
  1974. if (IS_MF_SI(bp))
  1975. /* maxCfg in percents of linkspeed */
  1976. vn_max_rate = (bp->link_vars.line_speed * maxCfg) / 100;
  1977. else
  1978. /* maxCfg is absolute in 100Mb units */
  1979. vn_max_rate = maxCfg * 100;
  1980. }
  1981. DP(NETIF_MSG_IFUP,
  1982. "func %d: vn_min_rate %d vn_max_rate %d vn_weight_sum %d\n",
  1983. func, vn_min_rate, vn_max_rate, bp->vn_weight_sum);
  1984. memset(&m_rs_vn, 0, sizeof(struct rate_shaping_vars_per_vn));
  1985. memset(&m_fair_vn, 0, sizeof(struct fairness_vars_per_vn));
  1986. /* global vn counter - maximal Mbps for this vn */
  1987. m_rs_vn.vn_counter.rate = vn_max_rate;
  1988. /* quota - number of bytes transmitted in this period */
  1989. m_rs_vn.vn_counter.quota =
  1990. (vn_max_rate * RS_PERIODIC_TIMEOUT_USEC) / 8;
  1991. if (bp->vn_weight_sum) {
  1992. /* credit for each period of the fairness algorithm:
  1993. number of bytes in T_FAIR (the vn share the port rate).
  1994. vn_weight_sum should not be larger than 10000, thus
  1995. T_FAIR_COEF / (8 * vn_weight_sum) will always be greater
  1996. than zero */
  1997. m_fair_vn.vn_credit_delta =
  1998. max_t(u32, (vn_min_rate * (T_FAIR_COEF /
  1999. (8 * bp->vn_weight_sum))),
  2000. (bp->cmng.fair_vars.fair_threshold +
  2001. MIN_ABOVE_THRESH));
  2002. DP(NETIF_MSG_IFUP, "m_fair_vn.vn_credit_delta %d\n",
  2003. m_fair_vn.vn_credit_delta);
  2004. }
  2005. /* Store it to internal memory */
  2006. for (i = 0; i < sizeof(struct rate_shaping_vars_per_vn)/4; i++)
  2007. REG_WR(bp, BAR_XSTRORM_INTMEM +
  2008. XSTORM_RATE_SHAPING_PER_VN_VARS_OFFSET(func) + i * 4,
  2009. ((u32 *)(&m_rs_vn))[i]);
  2010. for (i = 0; i < sizeof(struct fairness_vars_per_vn)/4; i++)
  2011. REG_WR(bp, BAR_XSTRORM_INTMEM +
  2012. XSTORM_FAIRNESS_PER_VN_VARS_OFFSET(func) + i * 4,
  2013. ((u32 *)(&m_fair_vn))[i]);
  2014. }
  2015. static int bnx2x_get_cmng_fns_mode(struct bnx2x *bp)
  2016. {
  2017. if (CHIP_REV_IS_SLOW(bp))
  2018. return CMNG_FNS_NONE;
  2019. if (IS_MF(bp))
  2020. return CMNG_FNS_MINMAX;
  2021. return CMNG_FNS_NONE;
  2022. }
  2023. void bnx2x_read_mf_cfg(struct bnx2x *bp)
  2024. {
  2025. int vn, n = (CHIP_MODE_IS_4_PORT(bp) ? 2 : 1);
  2026. if (BP_NOMCP(bp))
  2027. return; /* what should be the default bvalue in this case */
  2028. /* For 2 port configuration the absolute function number formula
  2029. * is:
  2030. * abs_func = 2 * vn + BP_PORT + BP_PATH
  2031. *
  2032. * and there are 4 functions per port
  2033. *
  2034. * For 4 port configuration it is
  2035. * abs_func = 4 * vn + 2 * BP_PORT + BP_PATH
  2036. *
  2037. * and there are 2 functions per port
  2038. */
  2039. for (vn = VN_0; vn < BP_MAX_VN_NUM(bp); vn++) {
  2040. int /*abs*/func = n * (2 * vn + BP_PORT(bp)) + BP_PATH(bp);
  2041. if (func >= E1H_FUNC_MAX)
  2042. break;
  2043. bp->mf_config[vn] =
  2044. MF_CFG_RD(bp, func_mf_config[func].config);
  2045. }
  2046. }
  2047. static void bnx2x_cmng_fns_init(struct bnx2x *bp, u8 read_cfg, u8 cmng_type)
  2048. {
  2049. if (cmng_type == CMNG_FNS_MINMAX) {
  2050. int vn;
  2051. /* clear cmng_enables */
  2052. bp->cmng.flags.cmng_enables = 0;
  2053. /* read mf conf from shmem */
  2054. if (read_cfg)
  2055. bnx2x_read_mf_cfg(bp);
  2056. /* Init rate shaping and fairness contexts */
  2057. bnx2x_init_port_minmax(bp);
  2058. /* vn_weight_sum and enable fairness if not 0 */
  2059. bnx2x_calc_vn_weight_sum(bp);
  2060. /* calculate and set min-max rate for each vn */
  2061. if (bp->port.pmf)
  2062. for (vn = VN_0; vn < BP_MAX_VN_NUM(bp); vn++)
  2063. bnx2x_init_vn_minmax(bp, vn);
  2064. /* always enable rate shaping and fairness */
  2065. bp->cmng.flags.cmng_enables |=
  2066. CMNG_FLAGS_PER_PORT_RATE_SHAPING_VN;
  2067. if (!bp->vn_weight_sum)
  2068. DP(NETIF_MSG_IFUP, "All MIN values are zeroes"
  2069. " fairness will be disabled\n");
  2070. return;
  2071. }
  2072. /* rate shaping and fairness are disabled */
  2073. DP(NETIF_MSG_IFUP,
  2074. "rate shaping and fairness are disabled\n");
  2075. }
  2076. /* This function is called upon link interrupt */
  2077. static void bnx2x_link_attn(struct bnx2x *bp)
  2078. {
  2079. /* Make sure that we are synced with the current statistics */
  2080. bnx2x_stats_handle(bp, STATS_EVENT_STOP);
  2081. bnx2x_link_update(&bp->link_params, &bp->link_vars);
  2082. if (bp->link_vars.link_up) {
  2083. /* dropless flow control */
  2084. if (!CHIP_IS_E1(bp) && bp->dropless_fc) {
  2085. int port = BP_PORT(bp);
  2086. u32 pause_enabled = 0;
  2087. if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_TX)
  2088. pause_enabled = 1;
  2089. REG_WR(bp, BAR_USTRORM_INTMEM +
  2090. USTORM_ETH_PAUSE_ENABLED_OFFSET(port),
  2091. pause_enabled);
  2092. }
  2093. if (bp->link_vars.mac_type != MAC_TYPE_EMAC) {
  2094. struct host_port_stats *pstats;
  2095. pstats = bnx2x_sp(bp, port_stats);
  2096. /* reset old mac stats */
  2097. memset(&(pstats->mac_stx[0]), 0,
  2098. sizeof(struct mac_stx));
  2099. }
  2100. if (bp->state == BNX2X_STATE_OPEN)
  2101. bnx2x_stats_handle(bp, STATS_EVENT_LINK_UP);
  2102. }
  2103. if (bp->link_vars.link_up && bp->link_vars.line_speed) {
  2104. int cmng_fns = bnx2x_get_cmng_fns_mode(bp);
  2105. if (cmng_fns != CMNG_FNS_NONE) {
  2106. bnx2x_cmng_fns_init(bp, false, cmng_fns);
  2107. storm_memset_cmng(bp, &bp->cmng, BP_PORT(bp));
  2108. } else
  2109. /* rate shaping and fairness are disabled */
  2110. DP(NETIF_MSG_IFUP,
  2111. "single function mode without fairness\n");
  2112. }
  2113. __bnx2x_link_report(bp);
  2114. if (IS_MF(bp))
  2115. bnx2x_link_sync_notify(bp);
  2116. }
  2117. void bnx2x__link_status_update(struct bnx2x *bp)
  2118. {
  2119. if (bp->state != BNX2X_STATE_OPEN)
  2120. return;
  2121. /* read updated dcb configuration */
  2122. bnx2x_dcbx_pmf_update(bp);
  2123. bnx2x_link_status_update(&bp->link_params, &bp->link_vars);
  2124. if (bp->link_vars.link_up)
  2125. bnx2x_stats_handle(bp, STATS_EVENT_LINK_UP);
  2126. else
  2127. bnx2x_stats_handle(bp, STATS_EVENT_STOP);
  2128. /* indicate link status */
  2129. bnx2x_link_report(bp);
  2130. }
  2131. static void bnx2x_pmf_update(struct bnx2x *bp)
  2132. {
  2133. int port = BP_PORT(bp);
  2134. u32 val;
  2135. bp->port.pmf = 1;
  2136. DP(NETIF_MSG_LINK, "pmf %d\n", bp->port.pmf);
  2137. /*
  2138. * We need the mb() to ensure the ordering between the writing to
  2139. * bp->port.pmf here and reading it from the bnx2x_periodic_task().
  2140. */
  2141. smp_mb();
  2142. /* queue a periodic task */
  2143. queue_delayed_work(bnx2x_wq, &bp->period_task, 0);
  2144. bnx2x_dcbx_pmf_update(bp);
  2145. /* enable nig attention */
  2146. val = (0xff0f | (1 << (BP_VN(bp) + 4)));
  2147. if (bp->common.int_block == INT_BLOCK_HC) {
  2148. REG_WR(bp, HC_REG_TRAILING_EDGE_0 + port*8, val);
  2149. REG_WR(bp, HC_REG_LEADING_EDGE_0 + port*8, val);
  2150. } else if (!CHIP_IS_E1x(bp)) {
  2151. REG_WR(bp, IGU_REG_TRAILING_EDGE_LATCH, val);
  2152. REG_WR(bp, IGU_REG_LEADING_EDGE_LATCH, val);
  2153. }
  2154. bnx2x_stats_handle(bp, STATS_EVENT_PMF);
  2155. }
  2156. /* end of Link */
  2157. /* slow path */
  2158. /*
  2159. * General service functions
  2160. */
  2161. /* send the MCP a request, block until there is a reply */
  2162. u32 bnx2x_fw_command(struct bnx2x *bp, u32 command, u32 param)
  2163. {
  2164. int mb_idx = BP_FW_MB_IDX(bp);
  2165. u32 seq;
  2166. u32 rc = 0;
  2167. u32 cnt = 1;
  2168. u8 delay = CHIP_REV_IS_SLOW(bp) ? 100 : 10;
  2169. mutex_lock(&bp->fw_mb_mutex);
  2170. seq = ++bp->fw_seq;
  2171. SHMEM_WR(bp, func_mb[mb_idx].drv_mb_param, param);
  2172. SHMEM_WR(bp, func_mb[mb_idx].drv_mb_header, (command | seq));
  2173. DP(BNX2X_MSG_MCP, "wrote command (%x) to FW MB param 0x%08x\n",
  2174. (command | seq), param);
  2175. do {
  2176. /* let the FW do it's magic ... */
  2177. msleep(delay);
  2178. rc = SHMEM_RD(bp, func_mb[mb_idx].fw_mb_header);
  2179. /* Give the FW up to 5 second (500*10ms) */
  2180. } while ((seq != (rc & FW_MSG_SEQ_NUMBER_MASK)) && (cnt++ < 500));
  2181. DP(BNX2X_MSG_MCP, "[after %d ms] read (%x) seq is (%x) from FW MB\n",
  2182. cnt*delay, rc, seq);
  2183. /* is this a reply to our command? */
  2184. if (seq == (rc & FW_MSG_SEQ_NUMBER_MASK))
  2185. rc &= FW_MSG_CODE_MASK;
  2186. else {
  2187. /* FW BUG! */
  2188. BNX2X_ERR("FW failed to respond!\n");
  2189. bnx2x_fw_dump(bp);
  2190. rc = 0;
  2191. }
  2192. mutex_unlock(&bp->fw_mb_mutex);
  2193. return rc;
  2194. }
  2195. void bnx2x_func_init(struct bnx2x *bp, struct bnx2x_func_init_params *p)
  2196. {
  2197. if (CHIP_IS_E1x(bp)) {
  2198. struct tstorm_eth_function_common_config tcfg = {0};
  2199. storm_memset_func_cfg(bp, &tcfg, p->func_id);
  2200. }
  2201. /* Enable the function in the FW */
  2202. storm_memset_vf_to_pf(bp, p->func_id, p->pf_id);
  2203. storm_memset_func_en(bp, p->func_id, 1);
  2204. /* spq */
  2205. if (p->func_flgs & FUNC_FLG_SPQ) {
  2206. storm_memset_spq_addr(bp, p->spq_map, p->func_id);
  2207. REG_WR(bp, XSEM_REG_FAST_MEMORY +
  2208. XSTORM_SPQ_PROD_OFFSET(p->func_id), p->spq_prod);
  2209. }
  2210. }
  2211. /**
  2212. * bnx2x_get_tx_only_flags - Return common flags
  2213. *
  2214. * @bp device handle
  2215. * @fp queue handle
  2216. * @zero_stats TRUE if statistics zeroing is needed
  2217. *
  2218. * Return the flags that are common for the Tx-only and not normal connections.
  2219. */
  2220. static inline unsigned long bnx2x_get_common_flags(struct bnx2x *bp,
  2221. struct bnx2x_fastpath *fp,
  2222. bool zero_stats)
  2223. {
  2224. unsigned long flags = 0;
  2225. /* PF driver will always initialize the Queue to an ACTIVE state */
  2226. __set_bit(BNX2X_Q_FLG_ACTIVE, &flags);
  2227. /* tx only connections collect statistics (on the same index as the
  2228. * parent connection). The statistics are zeroed when the parent
  2229. * connection is initialized.
  2230. */
  2231. __set_bit(BNX2X_Q_FLG_STATS, &flags);
  2232. if (zero_stats)
  2233. __set_bit(BNX2X_Q_FLG_ZERO_STATS, &flags);
  2234. return flags;
  2235. }
  2236. static inline unsigned long bnx2x_get_q_flags(struct bnx2x *bp,
  2237. struct bnx2x_fastpath *fp,
  2238. bool leading)
  2239. {
  2240. unsigned long flags = 0;
  2241. /* calculate other queue flags */
  2242. if (IS_MF_SD(bp))
  2243. __set_bit(BNX2X_Q_FLG_OV, &flags);
  2244. if (IS_FCOE_FP(fp))
  2245. __set_bit(BNX2X_Q_FLG_FCOE, &flags);
  2246. if (!fp->disable_tpa) {
  2247. __set_bit(BNX2X_Q_FLG_TPA, &flags);
  2248. __set_bit(BNX2X_Q_FLG_TPA_IPV6, &flags);
  2249. }
  2250. if (leading) {
  2251. __set_bit(BNX2X_Q_FLG_LEADING_RSS, &flags);
  2252. __set_bit(BNX2X_Q_FLG_MCAST, &flags);
  2253. }
  2254. /* Always set HW VLAN stripping */
  2255. __set_bit(BNX2X_Q_FLG_VLAN, &flags);
  2256. return flags | bnx2x_get_common_flags(bp, fp, true);
  2257. }
  2258. static void bnx2x_pf_q_prep_general(struct bnx2x *bp,
  2259. struct bnx2x_fastpath *fp, struct bnx2x_general_setup_params *gen_init,
  2260. u8 cos)
  2261. {
  2262. gen_init->stat_id = bnx2x_stats_id(fp);
  2263. gen_init->spcl_id = fp->cl_id;
  2264. /* Always use mini-jumbo MTU for FCoE L2 ring */
  2265. if (IS_FCOE_FP(fp))
  2266. gen_init->mtu = BNX2X_FCOE_MINI_JUMBO_MTU;
  2267. else
  2268. gen_init->mtu = bp->dev->mtu;
  2269. gen_init->cos = cos;
  2270. }
  2271. static void bnx2x_pf_rx_q_prep(struct bnx2x *bp,
  2272. struct bnx2x_fastpath *fp, struct rxq_pause_params *pause,
  2273. struct bnx2x_rxq_setup_params *rxq_init)
  2274. {
  2275. u8 max_sge = 0;
  2276. u16 sge_sz = 0;
  2277. u16 tpa_agg_size = 0;
  2278. if (!fp->disable_tpa) {
  2279. pause->sge_th_lo = SGE_TH_LO(bp);
  2280. pause->sge_th_hi = SGE_TH_HI(bp);
  2281. /* validate SGE ring has enough to cross high threshold */
  2282. WARN_ON(bp->dropless_fc &&
  2283. pause->sge_th_hi + FW_PREFETCH_CNT >
  2284. MAX_RX_SGE_CNT * NUM_RX_SGE_PAGES);
  2285. tpa_agg_size = min_t(u32,
  2286. (min_t(u32, 8, MAX_SKB_FRAGS) *
  2287. SGE_PAGE_SIZE * PAGES_PER_SGE), 0xffff);
  2288. max_sge = SGE_PAGE_ALIGN(bp->dev->mtu) >>
  2289. SGE_PAGE_SHIFT;
  2290. max_sge = ((max_sge + PAGES_PER_SGE - 1) &
  2291. (~(PAGES_PER_SGE-1))) >> PAGES_PER_SGE_SHIFT;
  2292. sge_sz = (u16)min_t(u32, SGE_PAGE_SIZE * PAGES_PER_SGE,
  2293. 0xffff);
  2294. }
  2295. /* pause - not for e1 */
  2296. if (!CHIP_IS_E1(bp)) {
  2297. pause->bd_th_lo = BD_TH_LO(bp);
  2298. pause->bd_th_hi = BD_TH_HI(bp);
  2299. pause->rcq_th_lo = RCQ_TH_LO(bp);
  2300. pause->rcq_th_hi = RCQ_TH_HI(bp);
  2301. /*
  2302. * validate that rings have enough entries to cross
  2303. * high thresholds
  2304. */
  2305. WARN_ON(bp->dropless_fc &&
  2306. pause->bd_th_hi + FW_PREFETCH_CNT >
  2307. bp->rx_ring_size);
  2308. WARN_ON(bp->dropless_fc &&
  2309. pause->rcq_th_hi + FW_PREFETCH_CNT >
  2310. NUM_RCQ_RINGS * MAX_RCQ_DESC_CNT);
  2311. pause->pri_map = 1;
  2312. }
  2313. /* rxq setup */
  2314. rxq_init->dscr_map = fp->rx_desc_mapping;
  2315. rxq_init->sge_map = fp->rx_sge_mapping;
  2316. rxq_init->rcq_map = fp->rx_comp_mapping;
  2317. rxq_init->rcq_np_map = fp->rx_comp_mapping + BCM_PAGE_SIZE;
  2318. /* This should be a maximum number of data bytes that may be
  2319. * placed on the BD (not including paddings).
  2320. */
  2321. rxq_init->buf_sz = fp->rx_buf_size - BNX2X_FW_RX_ALIGN_START -
  2322. BNX2X_FW_RX_ALIGN_END - IP_HEADER_ALIGNMENT_PADDING;
  2323. rxq_init->cl_qzone_id = fp->cl_qzone_id;
  2324. rxq_init->tpa_agg_sz = tpa_agg_size;
  2325. rxq_init->sge_buf_sz = sge_sz;
  2326. rxq_init->max_sges_pkt = max_sge;
  2327. rxq_init->rss_engine_id = BP_FUNC(bp);
  2328. /* Maximum number or simultaneous TPA aggregation for this Queue.
  2329. *
  2330. * For PF Clients it should be the maximum avaliable number.
  2331. * VF driver(s) may want to define it to a smaller value.
  2332. */
  2333. rxq_init->max_tpa_queues = MAX_AGG_QS(bp);
  2334. rxq_init->cache_line_log = BNX2X_RX_ALIGN_SHIFT;
  2335. rxq_init->fw_sb_id = fp->fw_sb_id;
  2336. if (IS_FCOE_FP(fp))
  2337. rxq_init->sb_cq_index = HC_SP_INDEX_ETH_FCOE_RX_CQ_CONS;
  2338. else
  2339. rxq_init->sb_cq_index = HC_INDEX_ETH_RX_CQ_CONS;
  2340. }
  2341. static void bnx2x_pf_tx_q_prep(struct bnx2x *bp,
  2342. struct bnx2x_fastpath *fp, struct bnx2x_txq_setup_params *txq_init,
  2343. u8 cos)
  2344. {
  2345. txq_init->dscr_map = fp->txdata[cos].tx_desc_mapping;
  2346. txq_init->sb_cq_index = HC_INDEX_ETH_FIRST_TX_CQ_CONS + cos;
  2347. txq_init->traffic_type = LLFC_TRAFFIC_TYPE_NW;
  2348. txq_init->fw_sb_id = fp->fw_sb_id;
  2349. /*
  2350. * set the tss leading client id for TX classfication ==
  2351. * leading RSS client id
  2352. */
  2353. txq_init->tss_leading_cl_id = bnx2x_fp(bp, 0, cl_id);
  2354. if (IS_FCOE_FP(fp)) {
  2355. txq_init->sb_cq_index = HC_SP_INDEX_ETH_FCOE_TX_CQ_CONS;
  2356. txq_init->traffic_type = LLFC_TRAFFIC_TYPE_FCOE;
  2357. }
  2358. }
  2359. static void bnx2x_pf_init(struct bnx2x *bp)
  2360. {
  2361. struct bnx2x_func_init_params func_init = {0};
  2362. struct event_ring_data eq_data = { {0} };
  2363. u16 flags;
  2364. if (!CHIP_IS_E1x(bp)) {
  2365. /* reset IGU PF statistics: MSIX + ATTN */
  2366. /* PF */
  2367. REG_WR(bp, IGU_REG_STATISTIC_NUM_MESSAGE_SENT +
  2368. BNX2X_IGU_STAS_MSG_VF_CNT*4 +
  2369. (CHIP_MODE_IS_4_PORT(bp) ?
  2370. BP_FUNC(bp) : BP_VN(bp))*4, 0);
  2371. /* ATTN */
  2372. REG_WR(bp, IGU_REG_STATISTIC_NUM_MESSAGE_SENT +
  2373. BNX2X_IGU_STAS_MSG_VF_CNT*4 +
  2374. BNX2X_IGU_STAS_MSG_PF_CNT*4 +
  2375. (CHIP_MODE_IS_4_PORT(bp) ?
  2376. BP_FUNC(bp) : BP_VN(bp))*4, 0);
  2377. }
  2378. /* function setup flags */
  2379. flags = (FUNC_FLG_STATS | FUNC_FLG_LEADING | FUNC_FLG_SPQ);
  2380. /* This flag is relevant for E1x only.
  2381. * E2 doesn't have a TPA configuration in a function level.
  2382. */
  2383. flags |= (bp->flags & TPA_ENABLE_FLAG) ? FUNC_FLG_TPA : 0;
  2384. func_init.func_flgs = flags;
  2385. func_init.pf_id = BP_FUNC(bp);
  2386. func_init.func_id = BP_FUNC(bp);
  2387. func_init.spq_map = bp->spq_mapping;
  2388. func_init.spq_prod = bp->spq_prod_idx;
  2389. bnx2x_func_init(bp, &func_init);
  2390. memset(&(bp->cmng), 0, sizeof(struct cmng_struct_per_port));
  2391. /*
  2392. * Congestion management values depend on the link rate
  2393. * There is no active link so initial link rate is set to 10 Gbps.
  2394. * When the link comes up The congestion management values are
  2395. * re-calculated according to the actual link rate.
  2396. */
  2397. bp->link_vars.line_speed = SPEED_10000;
  2398. bnx2x_cmng_fns_init(bp, true, bnx2x_get_cmng_fns_mode(bp));
  2399. /* Only the PMF sets the HW */
  2400. if (bp->port.pmf)
  2401. storm_memset_cmng(bp, &bp->cmng, BP_PORT(bp));
  2402. /* init Event Queue */
  2403. eq_data.base_addr.hi = U64_HI(bp->eq_mapping);
  2404. eq_data.base_addr.lo = U64_LO(bp->eq_mapping);
  2405. eq_data.producer = bp->eq_prod;
  2406. eq_data.index_id = HC_SP_INDEX_EQ_CONS;
  2407. eq_data.sb_id = DEF_SB_ID;
  2408. storm_memset_eq_data(bp, &eq_data, BP_FUNC(bp));
  2409. }
  2410. static void bnx2x_e1h_disable(struct bnx2x *bp)
  2411. {
  2412. int port = BP_PORT(bp);
  2413. bnx2x_tx_disable(bp);
  2414. REG_WR(bp, NIG_REG_LLH0_FUNC_EN + port*8, 0);
  2415. }
  2416. static void bnx2x_e1h_enable(struct bnx2x *bp)
  2417. {
  2418. int port = BP_PORT(bp);
  2419. REG_WR(bp, NIG_REG_LLH0_FUNC_EN + port*8, 1);
  2420. /* Tx queue should be only reenabled */
  2421. netif_tx_wake_all_queues(bp->dev);
  2422. /*
  2423. * Should not call netif_carrier_on since it will be called if the link
  2424. * is up when checking for link state
  2425. */
  2426. }
  2427. #define DRV_INFO_ETH_STAT_NUM_MACS_REQUIRED 3
  2428. static void bnx2x_drv_info_ether_stat(struct bnx2x *bp)
  2429. {
  2430. struct eth_stats_info *ether_stat =
  2431. &bp->slowpath->drv_info_to_mcp.ether_stat;
  2432. /* leave last char as NULL */
  2433. memcpy(ether_stat->version, DRV_MODULE_VERSION,
  2434. ETH_STAT_INFO_VERSION_LEN - 1);
  2435. bp->fp[0].mac_obj.get_n_elements(bp, &bp->fp[0].mac_obj,
  2436. DRV_INFO_ETH_STAT_NUM_MACS_REQUIRED,
  2437. ether_stat->mac_local);
  2438. ether_stat->mtu_size = bp->dev->mtu;
  2439. if (bp->dev->features & NETIF_F_RXCSUM)
  2440. ether_stat->feature_flags |= FEATURE_ETH_CHKSUM_OFFLOAD_MASK;
  2441. if (bp->dev->features & NETIF_F_TSO)
  2442. ether_stat->feature_flags |= FEATURE_ETH_LSO_MASK;
  2443. ether_stat->feature_flags |= bp->common.boot_mode;
  2444. ether_stat->promiscuous_mode = (bp->dev->flags & IFF_PROMISC) ? 1 : 0;
  2445. ether_stat->txq_size = bp->tx_ring_size;
  2446. ether_stat->rxq_size = bp->rx_ring_size;
  2447. }
  2448. static void bnx2x_drv_info_fcoe_stat(struct bnx2x *bp)
  2449. {
  2450. #ifdef BCM_CNIC
  2451. struct bnx2x_dcbx_app_params *app = &bp->dcbx_port_params.app;
  2452. struct fcoe_stats_info *fcoe_stat =
  2453. &bp->slowpath->drv_info_to_mcp.fcoe_stat;
  2454. memcpy(fcoe_stat->mac_local, bp->fip_mac, ETH_ALEN);
  2455. fcoe_stat->qos_priority =
  2456. app->traffic_type_priority[LLFC_TRAFFIC_TYPE_FCOE];
  2457. /* insert FCoE stats from ramrod response */
  2458. if (!NO_FCOE(bp)) {
  2459. struct tstorm_per_queue_stats *fcoe_q_tstorm_stats =
  2460. &bp->fw_stats_data->queue_stats[FCOE_IDX].
  2461. tstorm_queue_statistics;
  2462. struct xstorm_per_queue_stats *fcoe_q_xstorm_stats =
  2463. &bp->fw_stats_data->queue_stats[FCOE_IDX].
  2464. xstorm_queue_statistics;
  2465. struct fcoe_statistics_params *fw_fcoe_stat =
  2466. &bp->fw_stats_data->fcoe;
  2467. ADD_64(fcoe_stat->rx_bytes_hi, 0, fcoe_stat->rx_bytes_lo,
  2468. fw_fcoe_stat->rx_stat0.fcoe_rx_byte_cnt);
  2469. ADD_64(fcoe_stat->rx_bytes_hi,
  2470. fcoe_q_tstorm_stats->rcv_ucast_bytes.hi,
  2471. fcoe_stat->rx_bytes_lo,
  2472. fcoe_q_tstorm_stats->rcv_ucast_bytes.lo);
  2473. ADD_64(fcoe_stat->rx_bytes_hi,
  2474. fcoe_q_tstorm_stats->rcv_bcast_bytes.hi,
  2475. fcoe_stat->rx_bytes_lo,
  2476. fcoe_q_tstorm_stats->rcv_bcast_bytes.lo);
  2477. ADD_64(fcoe_stat->rx_bytes_hi,
  2478. fcoe_q_tstorm_stats->rcv_mcast_bytes.hi,
  2479. fcoe_stat->rx_bytes_lo,
  2480. fcoe_q_tstorm_stats->rcv_mcast_bytes.lo);
  2481. ADD_64(fcoe_stat->rx_frames_hi, 0, fcoe_stat->rx_frames_lo,
  2482. fw_fcoe_stat->rx_stat0.fcoe_rx_pkt_cnt);
  2483. ADD_64(fcoe_stat->rx_frames_hi, 0, fcoe_stat->rx_frames_lo,
  2484. fcoe_q_tstorm_stats->rcv_ucast_pkts);
  2485. ADD_64(fcoe_stat->rx_frames_hi, 0, fcoe_stat->rx_frames_lo,
  2486. fcoe_q_tstorm_stats->rcv_bcast_pkts);
  2487. ADD_64(fcoe_stat->rx_frames_hi, 0, fcoe_stat->rx_frames_lo,
  2488. fcoe_q_tstorm_stats->rcv_mcast_pkts);
  2489. ADD_64(fcoe_stat->tx_bytes_hi, 0, fcoe_stat->tx_bytes_lo,
  2490. fw_fcoe_stat->tx_stat.fcoe_tx_byte_cnt);
  2491. ADD_64(fcoe_stat->tx_bytes_hi,
  2492. fcoe_q_xstorm_stats->ucast_bytes_sent.hi,
  2493. fcoe_stat->tx_bytes_lo,
  2494. fcoe_q_xstorm_stats->ucast_bytes_sent.lo);
  2495. ADD_64(fcoe_stat->tx_bytes_hi,
  2496. fcoe_q_xstorm_stats->bcast_bytes_sent.hi,
  2497. fcoe_stat->tx_bytes_lo,
  2498. fcoe_q_xstorm_stats->bcast_bytes_sent.lo);
  2499. ADD_64(fcoe_stat->tx_bytes_hi,
  2500. fcoe_q_xstorm_stats->mcast_bytes_sent.hi,
  2501. fcoe_stat->tx_bytes_lo,
  2502. fcoe_q_xstorm_stats->mcast_bytes_sent.lo);
  2503. ADD_64(fcoe_stat->tx_frames_hi, 0, fcoe_stat->tx_frames_lo,
  2504. fw_fcoe_stat->tx_stat.fcoe_tx_pkt_cnt);
  2505. ADD_64(fcoe_stat->tx_frames_hi, 0, fcoe_stat->tx_frames_lo,
  2506. fcoe_q_xstorm_stats->ucast_pkts_sent);
  2507. ADD_64(fcoe_stat->tx_frames_hi, 0, fcoe_stat->tx_frames_lo,
  2508. fcoe_q_xstorm_stats->bcast_pkts_sent);
  2509. ADD_64(fcoe_stat->tx_frames_hi, 0, fcoe_stat->tx_frames_lo,
  2510. fcoe_q_xstorm_stats->mcast_pkts_sent);
  2511. }
  2512. /* ask L5 driver to add data to the struct */
  2513. bnx2x_cnic_notify(bp, CNIC_CTL_FCOE_STATS_GET_CMD);
  2514. #endif
  2515. }
  2516. static void bnx2x_drv_info_iscsi_stat(struct bnx2x *bp)
  2517. {
  2518. #ifdef BCM_CNIC
  2519. struct bnx2x_dcbx_app_params *app = &bp->dcbx_port_params.app;
  2520. struct iscsi_stats_info *iscsi_stat =
  2521. &bp->slowpath->drv_info_to_mcp.iscsi_stat;
  2522. memcpy(iscsi_stat->mac_local, bp->cnic_eth_dev.iscsi_mac, ETH_ALEN);
  2523. iscsi_stat->qos_priority =
  2524. app->traffic_type_priority[LLFC_TRAFFIC_TYPE_ISCSI];
  2525. /* ask L5 driver to add data to the struct */
  2526. bnx2x_cnic_notify(bp, CNIC_CTL_ISCSI_STATS_GET_CMD);
  2527. #endif
  2528. }
  2529. /* called due to MCP event (on pmf):
  2530. * reread new bandwidth configuration
  2531. * configure FW
  2532. * notify others function about the change
  2533. */
  2534. static inline void bnx2x_config_mf_bw(struct bnx2x *bp)
  2535. {
  2536. if (bp->link_vars.link_up) {
  2537. bnx2x_cmng_fns_init(bp, true, CMNG_FNS_MINMAX);
  2538. bnx2x_link_sync_notify(bp);
  2539. }
  2540. storm_memset_cmng(bp, &bp->cmng, BP_PORT(bp));
  2541. }
  2542. static inline void bnx2x_set_mf_bw(struct bnx2x *bp)
  2543. {
  2544. bnx2x_config_mf_bw(bp);
  2545. bnx2x_fw_command(bp, DRV_MSG_CODE_SET_MF_BW_ACK, 0);
  2546. }
  2547. static void bnx2x_handle_drv_info_req(struct bnx2x *bp)
  2548. {
  2549. enum drv_info_opcode op_code;
  2550. u32 drv_info_ctl = SHMEM2_RD(bp, drv_info_control);
  2551. /* if drv_info version supported by MFW doesn't match - send NACK */
  2552. if ((drv_info_ctl & DRV_INFO_CONTROL_VER_MASK) != DRV_INFO_CUR_VER) {
  2553. bnx2x_fw_command(bp, DRV_MSG_CODE_DRV_INFO_NACK, 0);
  2554. return;
  2555. }
  2556. op_code = (drv_info_ctl & DRV_INFO_CONTROL_OP_CODE_MASK) >>
  2557. DRV_INFO_CONTROL_OP_CODE_SHIFT;
  2558. memset(&bp->slowpath->drv_info_to_mcp, 0,
  2559. sizeof(union drv_info_to_mcp));
  2560. switch (op_code) {
  2561. case ETH_STATS_OPCODE:
  2562. bnx2x_drv_info_ether_stat(bp);
  2563. break;
  2564. case FCOE_STATS_OPCODE:
  2565. bnx2x_drv_info_fcoe_stat(bp);
  2566. break;
  2567. case ISCSI_STATS_OPCODE:
  2568. bnx2x_drv_info_iscsi_stat(bp);
  2569. break;
  2570. default:
  2571. /* if op code isn't supported - send NACK */
  2572. bnx2x_fw_command(bp, DRV_MSG_CODE_DRV_INFO_NACK, 0);
  2573. return;
  2574. }
  2575. /* if we got drv_info attn from MFW then these fields are defined in
  2576. * shmem2 for sure
  2577. */
  2578. SHMEM2_WR(bp, drv_info_host_addr_lo,
  2579. U64_LO(bnx2x_sp_mapping(bp, drv_info_to_mcp)));
  2580. SHMEM2_WR(bp, drv_info_host_addr_hi,
  2581. U64_HI(bnx2x_sp_mapping(bp, drv_info_to_mcp)));
  2582. bnx2x_fw_command(bp, DRV_MSG_CODE_DRV_INFO_ACK, 0);
  2583. }
  2584. static void bnx2x_dcc_event(struct bnx2x *bp, u32 dcc_event)
  2585. {
  2586. DP(BNX2X_MSG_MCP, "dcc_event 0x%x\n", dcc_event);
  2587. if (dcc_event & DRV_STATUS_DCC_DISABLE_ENABLE_PF) {
  2588. /*
  2589. * This is the only place besides the function initialization
  2590. * where the bp->flags can change so it is done without any
  2591. * locks
  2592. */
  2593. if (bp->mf_config[BP_VN(bp)] & FUNC_MF_CFG_FUNC_DISABLED) {
  2594. DP(NETIF_MSG_IFDOWN, "mf_cfg function disabled\n");
  2595. bp->flags |= MF_FUNC_DIS;
  2596. bnx2x_e1h_disable(bp);
  2597. } else {
  2598. DP(NETIF_MSG_IFUP, "mf_cfg function enabled\n");
  2599. bp->flags &= ~MF_FUNC_DIS;
  2600. bnx2x_e1h_enable(bp);
  2601. }
  2602. dcc_event &= ~DRV_STATUS_DCC_DISABLE_ENABLE_PF;
  2603. }
  2604. if (dcc_event & DRV_STATUS_DCC_BANDWIDTH_ALLOCATION) {
  2605. bnx2x_config_mf_bw(bp);
  2606. dcc_event &= ~DRV_STATUS_DCC_BANDWIDTH_ALLOCATION;
  2607. }
  2608. /* Report results to MCP */
  2609. if (dcc_event)
  2610. bnx2x_fw_command(bp, DRV_MSG_CODE_DCC_FAILURE, 0);
  2611. else
  2612. bnx2x_fw_command(bp, DRV_MSG_CODE_DCC_OK, 0);
  2613. }
  2614. /* must be called under the spq lock */
  2615. static inline struct eth_spe *bnx2x_sp_get_next(struct bnx2x *bp)
  2616. {
  2617. struct eth_spe *next_spe = bp->spq_prod_bd;
  2618. if (bp->spq_prod_bd == bp->spq_last_bd) {
  2619. bp->spq_prod_bd = bp->spq;
  2620. bp->spq_prod_idx = 0;
  2621. DP(NETIF_MSG_TIMER, "end of spq\n");
  2622. } else {
  2623. bp->spq_prod_bd++;
  2624. bp->spq_prod_idx++;
  2625. }
  2626. return next_spe;
  2627. }
  2628. /* must be called under the spq lock */
  2629. static inline void bnx2x_sp_prod_update(struct bnx2x *bp)
  2630. {
  2631. int func = BP_FUNC(bp);
  2632. /*
  2633. * Make sure that BD data is updated before writing the producer:
  2634. * BD data is written to the memory, the producer is read from the
  2635. * memory, thus we need a full memory barrier to ensure the ordering.
  2636. */
  2637. mb();
  2638. REG_WR16(bp, BAR_XSTRORM_INTMEM + XSTORM_SPQ_PROD_OFFSET(func),
  2639. bp->spq_prod_idx);
  2640. mmiowb();
  2641. }
  2642. /**
  2643. * bnx2x_is_contextless_ramrod - check if the current command ends on EQ
  2644. *
  2645. * @cmd: command to check
  2646. * @cmd_type: command type
  2647. */
  2648. static inline bool bnx2x_is_contextless_ramrod(int cmd, int cmd_type)
  2649. {
  2650. if ((cmd_type == NONE_CONNECTION_TYPE) ||
  2651. (cmd == RAMROD_CMD_ID_ETH_FORWARD_SETUP) ||
  2652. (cmd == RAMROD_CMD_ID_ETH_CLASSIFICATION_RULES) ||
  2653. (cmd == RAMROD_CMD_ID_ETH_FILTER_RULES) ||
  2654. (cmd == RAMROD_CMD_ID_ETH_MULTICAST_RULES) ||
  2655. (cmd == RAMROD_CMD_ID_ETH_SET_MAC) ||
  2656. (cmd == RAMROD_CMD_ID_ETH_RSS_UPDATE))
  2657. return true;
  2658. else
  2659. return false;
  2660. }
  2661. /**
  2662. * bnx2x_sp_post - place a single command on an SP ring
  2663. *
  2664. * @bp: driver handle
  2665. * @command: command to place (e.g. SETUP, FILTER_RULES, etc.)
  2666. * @cid: SW CID the command is related to
  2667. * @data_hi: command private data address (high 32 bits)
  2668. * @data_lo: command private data address (low 32 bits)
  2669. * @cmd_type: command type (e.g. NONE, ETH)
  2670. *
  2671. * SP data is handled as if it's always an address pair, thus data fields are
  2672. * not swapped to little endian in upper functions. Instead this function swaps
  2673. * data as if it's two u32 fields.
  2674. */
  2675. int bnx2x_sp_post(struct bnx2x *bp, int command, int cid,
  2676. u32 data_hi, u32 data_lo, int cmd_type)
  2677. {
  2678. struct eth_spe *spe;
  2679. u16 type;
  2680. bool common = bnx2x_is_contextless_ramrod(command, cmd_type);
  2681. #ifdef BNX2X_STOP_ON_ERROR
  2682. if (unlikely(bp->panic))
  2683. return -EIO;
  2684. #endif
  2685. spin_lock_bh(&bp->spq_lock);
  2686. if (common) {
  2687. if (!atomic_read(&bp->eq_spq_left)) {
  2688. BNX2X_ERR("BUG! EQ ring full!\n");
  2689. spin_unlock_bh(&bp->spq_lock);
  2690. bnx2x_panic();
  2691. return -EBUSY;
  2692. }
  2693. } else if (!atomic_read(&bp->cq_spq_left)) {
  2694. BNX2X_ERR("BUG! SPQ ring full!\n");
  2695. spin_unlock_bh(&bp->spq_lock);
  2696. bnx2x_panic();
  2697. return -EBUSY;
  2698. }
  2699. spe = bnx2x_sp_get_next(bp);
  2700. /* CID needs port number to be encoded int it */
  2701. spe->hdr.conn_and_cmd_data =
  2702. cpu_to_le32((command << SPE_HDR_CMD_ID_SHIFT) |
  2703. HW_CID(bp, cid));
  2704. type = (cmd_type << SPE_HDR_CONN_TYPE_SHIFT) & SPE_HDR_CONN_TYPE;
  2705. type |= ((BP_FUNC(bp) << SPE_HDR_FUNCTION_ID_SHIFT) &
  2706. SPE_HDR_FUNCTION_ID);
  2707. spe->hdr.type = cpu_to_le16(type);
  2708. spe->data.update_data_addr.hi = cpu_to_le32(data_hi);
  2709. spe->data.update_data_addr.lo = cpu_to_le32(data_lo);
  2710. /*
  2711. * It's ok if the actual decrement is issued towards the memory
  2712. * somewhere between the spin_lock and spin_unlock. Thus no
  2713. * more explict memory barrier is needed.
  2714. */
  2715. if (common)
  2716. atomic_dec(&bp->eq_spq_left);
  2717. else
  2718. atomic_dec(&bp->cq_spq_left);
  2719. DP(BNX2X_MSG_SP/*NETIF_MSG_TIMER*/,
  2720. "SPQE[%x] (%x:%x) (cmd, common?) (%d,%d) hw_cid %x data (%x:%x) "
  2721. "type(0x%x) left (CQ, EQ) (%x,%x)\n",
  2722. bp->spq_prod_idx, (u32)U64_HI(bp->spq_mapping),
  2723. (u32)(U64_LO(bp->spq_mapping) +
  2724. (void *)bp->spq_prod_bd - (void *)bp->spq), command, common,
  2725. HW_CID(bp, cid), data_hi, data_lo, type,
  2726. atomic_read(&bp->cq_spq_left), atomic_read(&bp->eq_spq_left));
  2727. bnx2x_sp_prod_update(bp);
  2728. spin_unlock_bh(&bp->spq_lock);
  2729. return 0;
  2730. }
  2731. /* acquire split MCP access lock register */
  2732. static int bnx2x_acquire_alr(struct bnx2x *bp)
  2733. {
  2734. u32 j, val;
  2735. int rc = 0;
  2736. might_sleep();
  2737. for (j = 0; j < 1000; j++) {
  2738. val = (1UL << 31);
  2739. REG_WR(bp, GRCBASE_MCP + 0x9c, val);
  2740. val = REG_RD(bp, GRCBASE_MCP + 0x9c);
  2741. if (val & (1L << 31))
  2742. break;
  2743. msleep(5);
  2744. }
  2745. if (!(val & (1L << 31))) {
  2746. BNX2X_ERR("Cannot acquire MCP access lock register\n");
  2747. rc = -EBUSY;
  2748. }
  2749. return rc;
  2750. }
  2751. /* release split MCP access lock register */
  2752. static void bnx2x_release_alr(struct bnx2x *bp)
  2753. {
  2754. REG_WR(bp, GRCBASE_MCP + 0x9c, 0);
  2755. }
  2756. #define BNX2X_DEF_SB_ATT_IDX 0x0001
  2757. #define BNX2X_DEF_SB_IDX 0x0002
  2758. static inline u16 bnx2x_update_dsb_idx(struct bnx2x *bp)
  2759. {
  2760. struct host_sp_status_block *def_sb = bp->def_status_blk;
  2761. u16 rc = 0;
  2762. barrier(); /* status block is written to by the chip */
  2763. if (bp->def_att_idx != def_sb->atten_status_block.attn_bits_index) {
  2764. bp->def_att_idx = def_sb->atten_status_block.attn_bits_index;
  2765. rc |= BNX2X_DEF_SB_ATT_IDX;
  2766. }
  2767. if (bp->def_idx != def_sb->sp_sb.running_index) {
  2768. bp->def_idx = def_sb->sp_sb.running_index;
  2769. rc |= BNX2X_DEF_SB_IDX;
  2770. }
  2771. /* Do not reorder: indecies reading should complete before handling */
  2772. barrier();
  2773. return rc;
  2774. }
  2775. /*
  2776. * slow path service functions
  2777. */
  2778. static void bnx2x_attn_int_asserted(struct bnx2x *bp, u32 asserted)
  2779. {
  2780. int port = BP_PORT(bp);
  2781. u32 aeu_addr = port ? MISC_REG_AEU_MASK_ATTN_FUNC_1 :
  2782. MISC_REG_AEU_MASK_ATTN_FUNC_0;
  2783. u32 nig_int_mask_addr = port ? NIG_REG_MASK_INTERRUPT_PORT1 :
  2784. NIG_REG_MASK_INTERRUPT_PORT0;
  2785. u32 aeu_mask;
  2786. u32 nig_mask = 0;
  2787. u32 reg_addr;
  2788. if (bp->attn_state & asserted)
  2789. BNX2X_ERR("IGU ERROR\n");
  2790. bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_PORT0_ATT_MASK + port);
  2791. aeu_mask = REG_RD(bp, aeu_addr);
  2792. DP(NETIF_MSG_HW, "aeu_mask %x newly asserted %x\n",
  2793. aeu_mask, asserted);
  2794. aeu_mask &= ~(asserted & 0x3ff);
  2795. DP(NETIF_MSG_HW, "new mask %x\n", aeu_mask);
  2796. REG_WR(bp, aeu_addr, aeu_mask);
  2797. bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_PORT0_ATT_MASK + port);
  2798. DP(NETIF_MSG_HW, "attn_state %x\n", bp->attn_state);
  2799. bp->attn_state |= asserted;
  2800. DP(NETIF_MSG_HW, "new state %x\n", bp->attn_state);
  2801. if (asserted & ATTN_HARD_WIRED_MASK) {
  2802. if (asserted & ATTN_NIG_FOR_FUNC) {
  2803. bnx2x_acquire_phy_lock(bp);
  2804. /* save nig interrupt mask */
  2805. nig_mask = REG_RD(bp, nig_int_mask_addr);
  2806. /* If nig_mask is not set, no need to call the update
  2807. * function.
  2808. */
  2809. if (nig_mask) {
  2810. REG_WR(bp, nig_int_mask_addr, 0);
  2811. bnx2x_link_attn(bp);
  2812. }
  2813. /* handle unicore attn? */
  2814. }
  2815. if (asserted & ATTN_SW_TIMER_4_FUNC)
  2816. DP(NETIF_MSG_HW, "ATTN_SW_TIMER_4_FUNC!\n");
  2817. if (asserted & GPIO_2_FUNC)
  2818. DP(NETIF_MSG_HW, "GPIO_2_FUNC!\n");
  2819. if (asserted & GPIO_3_FUNC)
  2820. DP(NETIF_MSG_HW, "GPIO_3_FUNC!\n");
  2821. if (asserted & GPIO_4_FUNC)
  2822. DP(NETIF_MSG_HW, "GPIO_4_FUNC!\n");
  2823. if (port == 0) {
  2824. if (asserted & ATTN_GENERAL_ATTN_1) {
  2825. DP(NETIF_MSG_HW, "ATTN_GENERAL_ATTN_1!\n");
  2826. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_1, 0x0);
  2827. }
  2828. if (asserted & ATTN_GENERAL_ATTN_2) {
  2829. DP(NETIF_MSG_HW, "ATTN_GENERAL_ATTN_2!\n");
  2830. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_2, 0x0);
  2831. }
  2832. if (asserted & ATTN_GENERAL_ATTN_3) {
  2833. DP(NETIF_MSG_HW, "ATTN_GENERAL_ATTN_3!\n");
  2834. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_3, 0x0);
  2835. }
  2836. } else {
  2837. if (asserted & ATTN_GENERAL_ATTN_4) {
  2838. DP(NETIF_MSG_HW, "ATTN_GENERAL_ATTN_4!\n");
  2839. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_4, 0x0);
  2840. }
  2841. if (asserted & ATTN_GENERAL_ATTN_5) {
  2842. DP(NETIF_MSG_HW, "ATTN_GENERAL_ATTN_5!\n");
  2843. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_5, 0x0);
  2844. }
  2845. if (asserted & ATTN_GENERAL_ATTN_6) {
  2846. DP(NETIF_MSG_HW, "ATTN_GENERAL_ATTN_6!\n");
  2847. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_6, 0x0);
  2848. }
  2849. }
  2850. } /* if hardwired */
  2851. if (bp->common.int_block == INT_BLOCK_HC)
  2852. reg_addr = (HC_REG_COMMAND_REG + port*32 +
  2853. COMMAND_REG_ATTN_BITS_SET);
  2854. else
  2855. reg_addr = (BAR_IGU_INTMEM + IGU_CMD_ATTN_BIT_SET_UPPER*8);
  2856. DP(NETIF_MSG_HW, "about to mask 0x%08x at %s addr 0x%x\n", asserted,
  2857. (bp->common.int_block == INT_BLOCK_HC) ? "HC" : "IGU", reg_addr);
  2858. REG_WR(bp, reg_addr, asserted);
  2859. /* now set back the mask */
  2860. if (asserted & ATTN_NIG_FOR_FUNC) {
  2861. REG_WR(bp, nig_int_mask_addr, nig_mask);
  2862. bnx2x_release_phy_lock(bp);
  2863. }
  2864. }
  2865. static inline void bnx2x_fan_failure(struct bnx2x *bp)
  2866. {
  2867. int port = BP_PORT(bp);
  2868. u32 ext_phy_config;
  2869. /* mark the failure */
  2870. ext_phy_config =
  2871. SHMEM_RD(bp,
  2872. dev_info.port_hw_config[port].external_phy_config);
  2873. ext_phy_config &= ~PORT_HW_CFG_XGXS_EXT_PHY_TYPE_MASK;
  2874. ext_phy_config |= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE;
  2875. SHMEM_WR(bp, dev_info.port_hw_config[port].external_phy_config,
  2876. ext_phy_config);
  2877. /* log the failure */
  2878. netdev_err(bp->dev, "Fan Failure on Network Controller has caused"
  2879. " the driver to shutdown the card to prevent permanent"
  2880. " damage. Please contact OEM Support for assistance\n");
  2881. /*
  2882. * Scheudle device reset (unload)
  2883. * This is due to some boards consuming sufficient power when driver is
  2884. * up to overheat if fan fails.
  2885. */
  2886. smp_mb__before_clear_bit();
  2887. set_bit(BNX2X_SP_RTNL_FAN_FAILURE, &bp->sp_rtnl_state);
  2888. smp_mb__after_clear_bit();
  2889. schedule_delayed_work(&bp->sp_rtnl_task, 0);
  2890. }
  2891. static inline void bnx2x_attn_int_deasserted0(struct bnx2x *bp, u32 attn)
  2892. {
  2893. int port = BP_PORT(bp);
  2894. int reg_offset;
  2895. u32 val;
  2896. reg_offset = (port ? MISC_REG_AEU_ENABLE1_FUNC_1_OUT_0 :
  2897. MISC_REG_AEU_ENABLE1_FUNC_0_OUT_0);
  2898. if (attn & AEU_INPUTS_ATTN_BITS_SPIO5) {
  2899. val = REG_RD(bp, reg_offset);
  2900. val &= ~AEU_INPUTS_ATTN_BITS_SPIO5;
  2901. REG_WR(bp, reg_offset, val);
  2902. BNX2X_ERR("SPIO5 hw attention\n");
  2903. /* Fan failure attention */
  2904. bnx2x_hw_reset_phy(&bp->link_params);
  2905. bnx2x_fan_failure(bp);
  2906. }
  2907. if ((attn & bp->link_vars.aeu_int_mask) && bp->port.pmf) {
  2908. bnx2x_acquire_phy_lock(bp);
  2909. bnx2x_handle_module_detect_int(&bp->link_params);
  2910. bnx2x_release_phy_lock(bp);
  2911. }
  2912. if (attn & HW_INTERRUT_ASSERT_SET_0) {
  2913. val = REG_RD(bp, reg_offset);
  2914. val &= ~(attn & HW_INTERRUT_ASSERT_SET_0);
  2915. REG_WR(bp, reg_offset, val);
  2916. BNX2X_ERR("FATAL HW block attention set0 0x%x\n",
  2917. (u32)(attn & HW_INTERRUT_ASSERT_SET_0));
  2918. bnx2x_panic();
  2919. }
  2920. }
  2921. static inline void bnx2x_attn_int_deasserted1(struct bnx2x *bp, u32 attn)
  2922. {
  2923. u32 val;
  2924. if (attn & AEU_INPUTS_ATTN_BITS_DOORBELLQ_HW_INTERRUPT) {
  2925. val = REG_RD(bp, DORQ_REG_DORQ_INT_STS_CLR);
  2926. BNX2X_ERR("DB hw attention 0x%x\n", val);
  2927. /* DORQ discard attention */
  2928. if (val & 0x2)
  2929. BNX2X_ERR("FATAL error from DORQ\n");
  2930. }
  2931. if (attn & HW_INTERRUT_ASSERT_SET_1) {
  2932. int port = BP_PORT(bp);
  2933. int reg_offset;
  2934. reg_offset = (port ? MISC_REG_AEU_ENABLE1_FUNC_1_OUT_1 :
  2935. MISC_REG_AEU_ENABLE1_FUNC_0_OUT_1);
  2936. val = REG_RD(bp, reg_offset);
  2937. val &= ~(attn & HW_INTERRUT_ASSERT_SET_1);
  2938. REG_WR(bp, reg_offset, val);
  2939. BNX2X_ERR("FATAL HW block attention set1 0x%x\n",
  2940. (u32)(attn & HW_INTERRUT_ASSERT_SET_1));
  2941. bnx2x_panic();
  2942. }
  2943. }
  2944. static inline void bnx2x_attn_int_deasserted2(struct bnx2x *bp, u32 attn)
  2945. {
  2946. u32 val;
  2947. if (attn & AEU_INPUTS_ATTN_BITS_CFC_HW_INTERRUPT) {
  2948. val = REG_RD(bp, CFC_REG_CFC_INT_STS_CLR);
  2949. BNX2X_ERR("CFC hw attention 0x%x\n", val);
  2950. /* CFC error attention */
  2951. if (val & 0x2)
  2952. BNX2X_ERR("FATAL error from CFC\n");
  2953. }
  2954. if (attn & AEU_INPUTS_ATTN_BITS_PXP_HW_INTERRUPT) {
  2955. val = REG_RD(bp, PXP_REG_PXP_INT_STS_CLR_0);
  2956. BNX2X_ERR("PXP hw attention-0 0x%x\n", val);
  2957. /* RQ_USDMDP_FIFO_OVERFLOW */
  2958. if (val & 0x18000)
  2959. BNX2X_ERR("FATAL error from PXP\n");
  2960. if (!CHIP_IS_E1x(bp)) {
  2961. val = REG_RD(bp, PXP_REG_PXP_INT_STS_CLR_1);
  2962. BNX2X_ERR("PXP hw attention-1 0x%x\n", val);
  2963. }
  2964. }
  2965. if (attn & HW_INTERRUT_ASSERT_SET_2) {
  2966. int port = BP_PORT(bp);
  2967. int reg_offset;
  2968. reg_offset = (port ? MISC_REG_AEU_ENABLE1_FUNC_1_OUT_2 :
  2969. MISC_REG_AEU_ENABLE1_FUNC_0_OUT_2);
  2970. val = REG_RD(bp, reg_offset);
  2971. val &= ~(attn & HW_INTERRUT_ASSERT_SET_2);
  2972. REG_WR(bp, reg_offset, val);
  2973. BNX2X_ERR("FATAL HW block attention set2 0x%x\n",
  2974. (u32)(attn & HW_INTERRUT_ASSERT_SET_2));
  2975. bnx2x_panic();
  2976. }
  2977. }
  2978. static inline void bnx2x_attn_int_deasserted3(struct bnx2x *bp, u32 attn)
  2979. {
  2980. u32 val;
  2981. if (attn & EVEREST_GEN_ATTN_IN_USE_MASK) {
  2982. if (attn & BNX2X_PMF_LINK_ASSERT) {
  2983. int func = BP_FUNC(bp);
  2984. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_12 + func*4, 0);
  2985. bp->mf_config[BP_VN(bp)] = MF_CFG_RD(bp,
  2986. func_mf_config[BP_ABS_FUNC(bp)].config);
  2987. val = SHMEM_RD(bp,
  2988. func_mb[BP_FW_MB_IDX(bp)].drv_status);
  2989. if (val & DRV_STATUS_DCC_EVENT_MASK)
  2990. bnx2x_dcc_event(bp,
  2991. (val & DRV_STATUS_DCC_EVENT_MASK));
  2992. if (val & DRV_STATUS_SET_MF_BW)
  2993. bnx2x_set_mf_bw(bp);
  2994. if (val & DRV_STATUS_DRV_INFO_REQ)
  2995. bnx2x_handle_drv_info_req(bp);
  2996. if ((bp->port.pmf == 0) && (val & DRV_STATUS_PMF))
  2997. bnx2x_pmf_update(bp);
  2998. if (bp->port.pmf &&
  2999. (val & DRV_STATUS_DCBX_NEGOTIATION_RESULTS) &&
  3000. bp->dcbx_enabled > 0)
  3001. /* start dcbx state machine */
  3002. bnx2x_dcbx_set_params(bp,
  3003. BNX2X_DCBX_STATE_NEG_RECEIVED);
  3004. if (bp->link_vars.periodic_flags &
  3005. PERIODIC_FLAGS_LINK_EVENT) {
  3006. /* sync with link */
  3007. bnx2x_acquire_phy_lock(bp);
  3008. bp->link_vars.periodic_flags &=
  3009. ~PERIODIC_FLAGS_LINK_EVENT;
  3010. bnx2x_release_phy_lock(bp);
  3011. if (IS_MF(bp))
  3012. bnx2x_link_sync_notify(bp);
  3013. bnx2x_link_report(bp);
  3014. }
  3015. /* Always call it here: bnx2x_link_report() will
  3016. * prevent the link indication duplication.
  3017. */
  3018. bnx2x__link_status_update(bp);
  3019. } else if (attn & BNX2X_MC_ASSERT_BITS) {
  3020. BNX2X_ERR("MC assert!\n");
  3021. bnx2x_mc_assert(bp);
  3022. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_10, 0);
  3023. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_9, 0);
  3024. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_8, 0);
  3025. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_7, 0);
  3026. bnx2x_panic();
  3027. } else if (attn & BNX2X_MCP_ASSERT) {
  3028. BNX2X_ERR("MCP assert!\n");
  3029. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_11, 0);
  3030. bnx2x_fw_dump(bp);
  3031. } else
  3032. BNX2X_ERR("Unknown HW assert! (attn 0x%x)\n", attn);
  3033. }
  3034. if (attn & EVEREST_LATCHED_ATTN_IN_USE_MASK) {
  3035. BNX2X_ERR("LATCHED attention 0x%08x (masked)\n", attn);
  3036. if (attn & BNX2X_GRC_TIMEOUT) {
  3037. val = CHIP_IS_E1(bp) ? 0 :
  3038. REG_RD(bp, MISC_REG_GRC_TIMEOUT_ATTN);
  3039. BNX2X_ERR("GRC time-out 0x%08x\n", val);
  3040. }
  3041. if (attn & BNX2X_GRC_RSV) {
  3042. val = CHIP_IS_E1(bp) ? 0 :
  3043. REG_RD(bp, MISC_REG_GRC_RSV_ATTN);
  3044. BNX2X_ERR("GRC reserved 0x%08x\n", val);
  3045. }
  3046. REG_WR(bp, MISC_REG_AEU_CLR_LATCH_SIGNAL, 0x7ff);
  3047. }
  3048. }
  3049. /*
  3050. * Bits map:
  3051. * 0-7 - Engine0 load counter.
  3052. * 8-15 - Engine1 load counter.
  3053. * 16 - Engine0 RESET_IN_PROGRESS bit.
  3054. * 17 - Engine1 RESET_IN_PROGRESS bit.
  3055. * 18 - Engine0 ONE_IS_LOADED. Set when there is at least one active function
  3056. * on the engine
  3057. * 19 - Engine1 ONE_IS_LOADED.
  3058. * 20 - Chip reset flow bit. When set none-leader must wait for both engines
  3059. * leader to complete (check for both RESET_IN_PROGRESS bits and not for
  3060. * just the one belonging to its engine).
  3061. *
  3062. */
  3063. #define BNX2X_RECOVERY_GLOB_REG MISC_REG_GENERIC_POR_1
  3064. #define BNX2X_PATH0_LOAD_CNT_MASK 0x000000ff
  3065. #define BNX2X_PATH0_LOAD_CNT_SHIFT 0
  3066. #define BNX2X_PATH1_LOAD_CNT_MASK 0x0000ff00
  3067. #define BNX2X_PATH1_LOAD_CNT_SHIFT 8
  3068. #define BNX2X_PATH0_RST_IN_PROG_BIT 0x00010000
  3069. #define BNX2X_PATH1_RST_IN_PROG_BIT 0x00020000
  3070. #define BNX2X_GLOBAL_RESET_BIT 0x00040000
  3071. /*
  3072. * Set the GLOBAL_RESET bit.
  3073. *
  3074. * Should be run under rtnl lock
  3075. */
  3076. void bnx2x_set_reset_global(struct bnx2x *bp)
  3077. {
  3078. u32 val = REG_RD(bp, BNX2X_RECOVERY_GLOB_REG);
  3079. REG_WR(bp, BNX2X_RECOVERY_GLOB_REG, val | BNX2X_GLOBAL_RESET_BIT);
  3080. barrier();
  3081. mmiowb();
  3082. }
  3083. /*
  3084. * Clear the GLOBAL_RESET bit.
  3085. *
  3086. * Should be run under rtnl lock
  3087. */
  3088. static inline void bnx2x_clear_reset_global(struct bnx2x *bp)
  3089. {
  3090. u32 val = REG_RD(bp, BNX2X_RECOVERY_GLOB_REG);
  3091. REG_WR(bp, BNX2X_RECOVERY_GLOB_REG, val & (~BNX2X_GLOBAL_RESET_BIT));
  3092. barrier();
  3093. mmiowb();
  3094. }
  3095. /*
  3096. * Checks the GLOBAL_RESET bit.
  3097. *
  3098. * should be run under rtnl lock
  3099. */
  3100. static inline bool bnx2x_reset_is_global(struct bnx2x *bp)
  3101. {
  3102. u32 val = REG_RD(bp, BNX2X_RECOVERY_GLOB_REG);
  3103. DP(NETIF_MSG_HW, "GEN_REG_VAL=0x%08x\n", val);
  3104. return (val & BNX2X_GLOBAL_RESET_BIT) ? true : false;
  3105. }
  3106. /*
  3107. * Clear RESET_IN_PROGRESS bit for the current engine.
  3108. *
  3109. * Should be run under rtnl lock
  3110. */
  3111. static inline void bnx2x_set_reset_done(struct bnx2x *bp)
  3112. {
  3113. u32 val = REG_RD(bp, BNX2X_RECOVERY_GLOB_REG);
  3114. u32 bit = BP_PATH(bp) ?
  3115. BNX2X_PATH1_RST_IN_PROG_BIT : BNX2X_PATH0_RST_IN_PROG_BIT;
  3116. /* Clear the bit */
  3117. val &= ~bit;
  3118. REG_WR(bp, BNX2X_RECOVERY_GLOB_REG, val);
  3119. barrier();
  3120. mmiowb();
  3121. }
  3122. /*
  3123. * Set RESET_IN_PROGRESS for the current engine.
  3124. *
  3125. * should be run under rtnl lock
  3126. */
  3127. void bnx2x_set_reset_in_progress(struct bnx2x *bp)
  3128. {
  3129. u32 val = REG_RD(bp, BNX2X_RECOVERY_GLOB_REG);
  3130. u32 bit = BP_PATH(bp) ?
  3131. BNX2X_PATH1_RST_IN_PROG_BIT : BNX2X_PATH0_RST_IN_PROG_BIT;
  3132. /* Set the bit */
  3133. val |= bit;
  3134. REG_WR(bp, BNX2X_RECOVERY_GLOB_REG, val);
  3135. barrier();
  3136. mmiowb();
  3137. }
  3138. /*
  3139. * Checks the RESET_IN_PROGRESS bit for the given engine.
  3140. * should be run under rtnl lock
  3141. */
  3142. bool bnx2x_reset_is_done(struct bnx2x *bp, int engine)
  3143. {
  3144. u32 val = REG_RD(bp, BNX2X_RECOVERY_GLOB_REG);
  3145. u32 bit = engine ?
  3146. BNX2X_PATH1_RST_IN_PROG_BIT : BNX2X_PATH0_RST_IN_PROG_BIT;
  3147. /* return false if bit is set */
  3148. return (val & bit) ? false : true;
  3149. }
  3150. /*
  3151. * Increment the load counter for the current engine.
  3152. *
  3153. * should be run under rtnl lock
  3154. */
  3155. void bnx2x_inc_load_cnt(struct bnx2x *bp)
  3156. {
  3157. u32 val1, val = REG_RD(bp, BNX2X_RECOVERY_GLOB_REG);
  3158. u32 mask = BP_PATH(bp) ? BNX2X_PATH1_LOAD_CNT_MASK :
  3159. BNX2X_PATH0_LOAD_CNT_MASK;
  3160. u32 shift = BP_PATH(bp) ? BNX2X_PATH1_LOAD_CNT_SHIFT :
  3161. BNX2X_PATH0_LOAD_CNT_SHIFT;
  3162. DP(NETIF_MSG_HW, "Old GEN_REG_VAL=0x%08x\n", val);
  3163. /* get the current counter value */
  3164. val1 = (val & mask) >> shift;
  3165. /* increment... */
  3166. val1++;
  3167. /* clear the old value */
  3168. val &= ~mask;
  3169. /* set the new one */
  3170. val |= ((val1 << shift) & mask);
  3171. REG_WR(bp, BNX2X_RECOVERY_GLOB_REG, val);
  3172. barrier();
  3173. mmiowb();
  3174. }
  3175. /**
  3176. * bnx2x_dec_load_cnt - decrement the load counter
  3177. *
  3178. * @bp: driver handle
  3179. *
  3180. * Should be run under rtnl lock.
  3181. * Decrements the load counter for the current engine. Returns
  3182. * the new counter value.
  3183. */
  3184. u32 bnx2x_dec_load_cnt(struct bnx2x *bp)
  3185. {
  3186. u32 val1, val = REG_RD(bp, BNX2X_RECOVERY_GLOB_REG);
  3187. u32 mask = BP_PATH(bp) ? BNX2X_PATH1_LOAD_CNT_MASK :
  3188. BNX2X_PATH0_LOAD_CNT_MASK;
  3189. u32 shift = BP_PATH(bp) ? BNX2X_PATH1_LOAD_CNT_SHIFT :
  3190. BNX2X_PATH0_LOAD_CNT_SHIFT;
  3191. DP(NETIF_MSG_HW, "Old GEN_REG_VAL=0x%08x\n", val);
  3192. /* get the current counter value */
  3193. val1 = (val & mask) >> shift;
  3194. /* decrement... */
  3195. val1--;
  3196. /* clear the old value */
  3197. val &= ~mask;
  3198. /* set the new one */
  3199. val |= ((val1 << shift) & mask);
  3200. REG_WR(bp, BNX2X_RECOVERY_GLOB_REG, val);
  3201. barrier();
  3202. mmiowb();
  3203. return val1;
  3204. }
  3205. /*
  3206. * Read the load counter for the current engine.
  3207. *
  3208. * should be run under rtnl lock
  3209. */
  3210. static inline u32 bnx2x_get_load_cnt(struct bnx2x *bp, int engine)
  3211. {
  3212. u32 mask = (engine ? BNX2X_PATH1_LOAD_CNT_MASK :
  3213. BNX2X_PATH0_LOAD_CNT_MASK);
  3214. u32 shift = (engine ? BNX2X_PATH1_LOAD_CNT_SHIFT :
  3215. BNX2X_PATH0_LOAD_CNT_SHIFT);
  3216. u32 val = REG_RD(bp, BNX2X_RECOVERY_GLOB_REG);
  3217. DP(NETIF_MSG_HW, "GLOB_REG=0x%08x\n", val);
  3218. val = (val & mask) >> shift;
  3219. DP(NETIF_MSG_HW, "load_cnt for engine %d = %d\n", engine, val);
  3220. return val;
  3221. }
  3222. /*
  3223. * Reset the load counter for the current engine.
  3224. *
  3225. * should be run under rtnl lock
  3226. */
  3227. static inline void bnx2x_clear_load_cnt(struct bnx2x *bp)
  3228. {
  3229. u32 val = REG_RD(bp, BNX2X_RECOVERY_GLOB_REG);
  3230. u32 mask = (BP_PATH(bp) ? BNX2X_PATH1_LOAD_CNT_MASK :
  3231. BNX2X_PATH0_LOAD_CNT_MASK);
  3232. REG_WR(bp, BNX2X_RECOVERY_GLOB_REG, val & (~mask));
  3233. }
  3234. static inline void _print_next_block(int idx, const char *blk)
  3235. {
  3236. pr_cont("%s%s", idx ? ", " : "", blk);
  3237. }
  3238. static inline int bnx2x_check_blocks_with_parity0(u32 sig, int par_num,
  3239. bool print)
  3240. {
  3241. int i = 0;
  3242. u32 cur_bit = 0;
  3243. for (i = 0; sig; i++) {
  3244. cur_bit = ((u32)0x1 << i);
  3245. if (sig & cur_bit) {
  3246. switch (cur_bit) {
  3247. case AEU_INPUTS_ATTN_BITS_BRB_PARITY_ERROR:
  3248. if (print)
  3249. _print_next_block(par_num++, "BRB");
  3250. break;
  3251. case AEU_INPUTS_ATTN_BITS_PARSER_PARITY_ERROR:
  3252. if (print)
  3253. _print_next_block(par_num++, "PARSER");
  3254. break;
  3255. case AEU_INPUTS_ATTN_BITS_TSDM_PARITY_ERROR:
  3256. if (print)
  3257. _print_next_block(par_num++, "TSDM");
  3258. break;
  3259. case AEU_INPUTS_ATTN_BITS_SEARCHER_PARITY_ERROR:
  3260. if (print)
  3261. _print_next_block(par_num++,
  3262. "SEARCHER");
  3263. break;
  3264. case AEU_INPUTS_ATTN_BITS_TCM_PARITY_ERROR:
  3265. if (print)
  3266. _print_next_block(par_num++, "TCM");
  3267. break;
  3268. case AEU_INPUTS_ATTN_BITS_TSEMI_PARITY_ERROR:
  3269. if (print)
  3270. _print_next_block(par_num++, "TSEMI");
  3271. break;
  3272. case AEU_INPUTS_ATTN_BITS_PBCLIENT_PARITY_ERROR:
  3273. if (print)
  3274. _print_next_block(par_num++, "XPB");
  3275. break;
  3276. }
  3277. /* Clear the bit */
  3278. sig &= ~cur_bit;
  3279. }
  3280. }
  3281. return par_num;
  3282. }
  3283. static inline int bnx2x_check_blocks_with_parity1(u32 sig, int par_num,
  3284. bool *global, bool print)
  3285. {
  3286. int i = 0;
  3287. u32 cur_bit = 0;
  3288. for (i = 0; sig; i++) {
  3289. cur_bit = ((u32)0x1 << i);
  3290. if (sig & cur_bit) {
  3291. switch (cur_bit) {
  3292. case AEU_INPUTS_ATTN_BITS_PBF_PARITY_ERROR:
  3293. if (print)
  3294. _print_next_block(par_num++, "PBF");
  3295. break;
  3296. case AEU_INPUTS_ATTN_BITS_QM_PARITY_ERROR:
  3297. if (print)
  3298. _print_next_block(par_num++, "QM");
  3299. break;
  3300. case AEU_INPUTS_ATTN_BITS_TIMERS_PARITY_ERROR:
  3301. if (print)
  3302. _print_next_block(par_num++, "TM");
  3303. break;
  3304. case AEU_INPUTS_ATTN_BITS_XSDM_PARITY_ERROR:
  3305. if (print)
  3306. _print_next_block(par_num++, "XSDM");
  3307. break;
  3308. case AEU_INPUTS_ATTN_BITS_XCM_PARITY_ERROR:
  3309. if (print)
  3310. _print_next_block(par_num++, "XCM");
  3311. break;
  3312. case AEU_INPUTS_ATTN_BITS_XSEMI_PARITY_ERROR:
  3313. if (print)
  3314. _print_next_block(par_num++, "XSEMI");
  3315. break;
  3316. case AEU_INPUTS_ATTN_BITS_DOORBELLQ_PARITY_ERROR:
  3317. if (print)
  3318. _print_next_block(par_num++,
  3319. "DOORBELLQ");
  3320. break;
  3321. case AEU_INPUTS_ATTN_BITS_NIG_PARITY_ERROR:
  3322. if (print)
  3323. _print_next_block(par_num++, "NIG");
  3324. break;
  3325. case AEU_INPUTS_ATTN_BITS_VAUX_PCI_CORE_PARITY_ERROR:
  3326. if (print)
  3327. _print_next_block(par_num++,
  3328. "VAUX PCI CORE");
  3329. *global = true;
  3330. break;
  3331. case AEU_INPUTS_ATTN_BITS_DEBUG_PARITY_ERROR:
  3332. if (print)
  3333. _print_next_block(par_num++, "DEBUG");
  3334. break;
  3335. case AEU_INPUTS_ATTN_BITS_USDM_PARITY_ERROR:
  3336. if (print)
  3337. _print_next_block(par_num++, "USDM");
  3338. break;
  3339. case AEU_INPUTS_ATTN_BITS_UCM_PARITY_ERROR:
  3340. if (print)
  3341. _print_next_block(par_num++, "UCM");
  3342. break;
  3343. case AEU_INPUTS_ATTN_BITS_USEMI_PARITY_ERROR:
  3344. if (print)
  3345. _print_next_block(par_num++, "USEMI");
  3346. break;
  3347. case AEU_INPUTS_ATTN_BITS_UPB_PARITY_ERROR:
  3348. if (print)
  3349. _print_next_block(par_num++, "UPB");
  3350. break;
  3351. case AEU_INPUTS_ATTN_BITS_CSDM_PARITY_ERROR:
  3352. if (print)
  3353. _print_next_block(par_num++, "CSDM");
  3354. break;
  3355. case AEU_INPUTS_ATTN_BITS_CCM_PARITY_ERROR:
  3356. if (print)
  3357. _print_next_block(par_num++, "CCM");
  3358. break;
  3359. }
  3360. /* Clear the bit */
  3361. sig &= ~cur_bit;
  3362. }
  3363. }
  3364. return par_num;
  3365. }
  3366. static inline int bnx2x_check_blocks_with_parity2(u32 sig, int par_num,
  3367. bool print)
  3368. {
  3369. int i = 0;
  3370. u32 cur_bit = 0;
  3371. for (i = 0; sig; i++) {
  3372. cur_bit = ((u32)0x1 << i);
  3373. if (sig & cur_bit) {
  3374. switch (cur_bit) {
  3375. case AEU_INPUTS_ATTN_BITS_CSEMI_PARITY_ERROR:
  3376. if (print)
  3377. _print_next_block(par_num++, "CSEMI");
  3378. break;
  3379. case AEU_INPUTS_ATTN_BITS_PXP_PARITY_ERROR:
  3380. if (print)
  3381. _print_next_block(par_num++, "PXP");
  3382. break;
  3383. case AEU_IN_ATTN_BITS_PXPPCICLOCKCLIENT_PARITY_ERROR:
  3384. if (print)
  3385. _print_next_block(par_num++,
  3386. "PXPPCICLOCKCLIENT");
  3387. break;
  3388. case AEU_INPUTS_ATTN_BITS_CFC_PARITY_ERROR:
  3389. if (print)
  3390. _print_next_block(par_num++, "CFC");
  3391. break;
  3392. case AEU_INPUTS_ATTN_BITS_CDU_PARITY_ERROR:
  3393. if (print)
  3394. _print_next_block(par_num++, "CDU");
  3395. break;
  3396. case AEU_INPUTS_ATTN_BITS_DMAE_PARITY_ERROR:
  3397. if (print)
  3398. _print_next_block(par_num++, "DMAE");
  3399. break;
  3400. case AEU_INPUTS_ATTN_BITS_IGU_PARITY_ERROR:
  3401. if (print)
  3402. _print_next_block(par_num++, "IGU");
  3403. break;
  3404. case AEU_INPUTS_ATTN_BITS_MISC_PARITY_ERROR:
  3405. if (print)
  3406. _print_next_block(par_num++, "MISC");
  3407. break;
  3408. }
  3409. /* Clear the bit */
  3410. sig &= ~cur_bit;
  3411. }
  3412. }
  3413. return par_num;
  3414. }
  3415. static inline int bnx2x_check_blocks_with_parity3(u32 sig, int par_num,
  3416. bool *global, bool print)
  3417. {
  3418. int i = 0;
  3419. u32 cur_bit = 0;
  3420. for (i = 0; sig; i++) {
  3421. cur_bit = ((u32)0x1 << i);
  3422. if (sig & cur_bit) {
  3423. switch (cur_bit) {
  3424. case AEU_INPUTS_ATTN_BITS_MCP_LATCHED_ROM_PARITY:
  3425. if (print)
  3426. _print_next_block(par_num++, "MCP ROM");
  3427. *global = true;
  3428. break;
  3429. case AEU_INPUTS_ATTN_BITS_MCP_LATCHED_UMP_RX_PARITY:
  3430. if (print)
  3431. _print_next_block(par_num++,
  3432. "MCP UMP RX");
  3433. *global = true;
  3434. break;
  3435. case AEU_INPUTS_ATTN_BITS_MCP_LATCHED_UMP_TX_PARITY:
  3436. if (print)
  3437. _print_next_block(par_num++,
  3438. "MCP UMP TX");
  3439. *global = true;
  3440. break;
  3441. case AEU_INPUTS_ATTN_BITS_MCP_LATCHED_SCPAD_PARITY:
  3442. if (print)
  3443. _print_next_block(par_num++,
  3444. "MCP SCPAD");
  3445. *global = true;
  3446. break;
  3447. }
  3448. /* Clear the bit */
  3449. sig &= ~cur_bit;
  3450. }
  3451. }
  3452. return par_num;
  3453. }
  3454. static inline int bnx2x_check_blocks_with_parity4(u32 sig, int par_num,
  3455. bool print)
  3456. {
  3457. int i = 0;
  3458. u32 cur_bit = 0;
  3459. for (i = 0; sig; i++) {
  3460. cur_bit = ((u32)0x1 << i);
  3461. if (sig & cur_bit) {
  3462. switch (cur_bit) {
  3463. case AEU_INPUTS_ATTN_BITS_PGLUE_PARITY_ERROR:
  3464. if (print)
  3465. _print_next_block(par_num++, "PGLUE_B");
  3466. break;
  3467. case AEU_INPUTS_ATTN_BITS_ATC_PARITY_ERROR:
  3468. if (print)
  3469. _print_next_block(par_num++, "ATC");
  3470. break;
  3471. }
  3472. /* Clear the bit */
  3473. sig &= ~cur_bit;
  3474. }
  3475. }
  3476. return par_num;
  3477. }
  3478. static inline bool bnx2x_parity_attn(struct bnx2x *bp, bool *global, bool print,
  3479. u32 *sig)
  3480. {
  3481. if ((sig[0] & HW_PRTY_ASSERT_SET_0) ||
  3482. (sig[1] & HW_PRTY_ASSERT_SET_1) ||
  3483. (sig[2] & HW_PRTY_ASSERT_SET_2) ||
  3484. (sig[3] & HW_PRTY_ASSERT_SET_3) ||
  3485. (sig[4] & HW_PRTY_ASSERT_SET_4)) {
  3486. int par_num = 0;
  3487. DP(NETIF_MSG_HW, "Was parity error: HW block parity attention: "
  3488. "[0]:0x%08x [1]:0x%08x [2]:0x%08x [3]:0x%08x "
  3489. "[4]:0x%08x\n",
  3490. sig[0] & HW_PRTY_ASSERT_SET_0,
  3491. sig[1] & HW_PRTY_ASSERT_SET_1,
  3492. sig[2] & HW_PRTY_ASSERT_SET_2,
  3493. sig[3] & HW_PRTY_ASSERT_SET_3,
  3494. sig[4] & HW_PRTY_ASSERT_SET_4);
  3495. if (print)
  3496. netdev_err(bp->dev,
  3497. "Parity errors detected in blocks: ");
  3498. par_num = bnx2x_check_blocks_with_parity0(
  3499. sig[0] & HW_PRTY_ASSERT_SET_0, par_num, print);
  3500. par_num = bnx2x_check_blocks_with_parity1(
  3501. sig[1] & HW_PRTY_ASSERT_SET_1, par_num, global, print);
  3502. par_num = bnx2x_check_blocks_with_parity2(
  3503. sig[2] & HW_PRTY_ASSERT_SET_2, par_num, print);
  3504. par_num = bnx2x_check_blocks_with_parity3(
  3505. sig[3] & HW_PRTY_ASSERT_SET_3, par_num, global, print);
  3506. par_num = bnx2x_check_blocks_with_parity4(
  3507. sig[4] & HW_PRTY_ASSERT_SET_4, par_num, print);
  3508. if (print)
  3509. pr_cont("\n");
  3510. return true;
  3511. } else
  3512. return false;
  3513. }
  3514. /**
  3515. * bnx2x_chk_parity_attn - checks for parity attentions.
  3516. *
  3517. * @bp: driver handle
  3518. * @global: true if there was a global attention
  3519. * @print: show parity attention in syslog
  3520. */
  3521. bool bnx2x_chk_parity_attn(struct bnx2x *bp, bool *global, bool print)
  3522. {
  3523. struct attn_route attn = { {0} };
  3524. int port = BP_PORT(bp);
  3525. attn.sig[0] = REG_RD(bp,
  3526. MISC_REG_AEU_AFTER_INVERT_1_FUNC_0 +
  3527. port*4);
  3528. attn.sig[1] = REG_RD(bp,
  3529. MISC_REG_AEU_AFTER_INVERT_2_FUNC_0 +
  3530. port*4);
  3531. attn.sig[2] = REG_RD(bp,
  3532. MISC_REG_AEU_AFTER_INVERT_3_FUNC_0 +
  3533. port*4);
  3534. attn.sig[3] = REG_RD(bp,
  3535. MISC_REG_AEU_AFTER_INVERT_4_FUNC_0 +
  3536. port*4);
  3537. if (!CHIP_IS_E1x(bp))
  3538. attn.sig[4] = REG_RD(bp,
  3539. MISC_REG_AEU_AFTER_INVERT_5_FUNC_0 +
  3540. port*4);
  3541. return bnx2x_parity_attn(bp, global, print, attn.sig);
  3542. }
  3543. static inline void bnx2x_attn_int_deasserted4(struct bnx2x *bp, u32 attn)
  3544. {
  3545. u32 val;
  3546. if (attn & AEU_INPUTS_ATTN_BITS_PGLUE_HW_INTERRUPT) {
  3547. val = REG_RD(bp, PGLUE_B_REG_PGLUE_B_INT_STS_CLR);
  3548. BNX2X_ERR("PGLUE hw attention 0x%x\n", val);
  3549. if (val & PGLUE_B_PGLUE_B_INT_STS_REG_ADDRESS_ERROR)
  3550. BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
  3551. "ADDRESS_ERROR\n");
  3552. if (val & PGLUE_B_PGLUE_B_INT_STS_REG_INCORRECT_RCV_BEHAVIOR)
  3553. BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
  3554. "INCORRECT_RCV_BEHAVIOR\n");
  3555. if (val & PGLUE_B_PGLUE_B_INT_STS_REG_WAS_ERROR_ATTN)
  3556. BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
  3557. "WAS_ERROR_ATTN\n");
  3558. if (val & PGLUE_B_PGLUE_B_INT_STS_REG_VF_LENGTH_VIOLATION_ATTN)
  3559. BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
  3560. "VF_LENGTH_VIOLATION_ATTN\n");
  3561. if (val &
  3562. PGLUE_B_PGLUE_B_INT_STS_REG_VF_GRC_SPACE_VIOLATION_ATTN)
  3563. BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
  3564. "VF_GRC_SPACE_VIOLATION_ATTN\n");
  3565. if (val &
  3566. PGLUE_B_PGLUE_B_INT_STS_REG_VF_MSIX_BAR_VIOLATION_ATTN)
  3567. BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
  3568. "VF_MSIX_BAR_VIOLATION_ATTN\n");
  3569. if (val & PGLUE_B_PGLUE_B_INT_STS_REG_TCPL_ERROR_ATTN)
  3570. BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
  3571. "TCPL_ERROR_ATTN\n");
  3572. if (val & PGLUE_B_PGLUE_B_INT_STS_REG_TCPL_IN_TWO_RCBS_ATTN)
  3573. BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
  3574. "TCPL_IN_TWO_RCBS_ATTN\n");
  3575. if (val & PGLUE_B_PGLUE_B_INT_STS_REG_CSSNOOP_FIFO_OVERFLOW)
  3576. BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
  3577. "CSSNOOP_FIFO_OVERFLOW\n");
  3578. }
  3579. if (attn & AEU_INPUTS_ATTN_BITS_ATC_HW_INTERRUPT) {
  3580. val = REG_RD(bp, ATC_REG_ATC_INT_STS_CLR);
  3581. BNX2X_ERR("ATC hw attention 0x%x\n", val);
  3582. if (val & ATC_ATC_INT_STS_REG_ADDRESS_ERROR)
  3583. BNX2X_ERR("ATC_ATC_INT_STS_REG_ADDRESS_ERROR\n");
  3584. if (val & ATC_ATC_INT_STS_REG_ATC_TCPL_TO_NOT_PEND)
  3585. BNX2X_ERR("ATC_ATC_INT_STS_REG"
  3586. "_ATC_TCPL_TO_NOT_PEND\n");
  3587. if (val & ATC_ATC_INT_STS_REG_ATC_GPA_MULTIPLE_HITS)
  3588. BNX2X_ERR("ATC_ATC_INT_STS_REG_"
  3589. "ATC_GPA_MULTIPLE_HITS\n");
  3590. if (val & ATC_ATC_INT_STS_REG_ATC_RCPL_TO_EMPTY_CNT)
  3591. BNX2X_ERR("ATC_ATC_INT_STS_REG_"
  3592. "ATC_RCPL_TO_EMPTY_CNT\n");
  3593. if (val & ATC_ATC_INT_STS_REG_ATC_TCPL_ERROR)
  3594. BNX2X_ERR("ATC_ATC_INT_STS_REG_ATC_TCPL_ERROR\n");
  3595. if (val & ATC_ATC_INT_STS_REG_ATC_IREQ_LESS_THAN_STU)
  3596. BNX2X_ERR("ATC_ATC_INT_STS_REG_"
  3597. "ATC_IREQ_LESS_THAN_STU\n");
  3598. }
  3599. if (attn & (AEU_INPUTS_ATTN_BITS_PGLUE_PARITY_ERROR |
  3600. AEU_INPUTS_ATTN_BITS_ATC_PARITY_ERROR)) {
  3601. BNX2X_ERR("FATAL parity attention set4 0x%x\n",
  3602. (u32)(attn & (AEU_INPUTS_ATTN_BITS_PGLUE_PARITY_ERROR |
  3603. AEU_INPUTS_ATTN_BITS_ATC_PARITY_ERROR)));
  3604. }
  3605. }
  3606. static void bnx2x_attn_int_deasserted(struct bnx2x *bp, u32 deasserted)
  3607. {
  3608. struct attn_route attn, *group_mask;
  3609. int port = BP_PORT(bp);
  3610. int index;
  3611. u32 reg_addr;
  3612. u32 val;
  3613. u32 aeu_mask;
  3614. bool global = false;
  3615. /* need to take HW lock because MCP or other port might also
  3616. try to handle this event */
  3617. bnx2x_acquire_alr(bp);
  3618. if (bnx2x_chk_parity_attn(bp, &global, true)) {
  3619. #ifndef BNX2X_STOP_ON_ERROR
  3620. bp->recovery_state = BNX2X_RECOVERY_INIT;
  3621. schedule_delayed_work(&bp->sp_rtnl_task, 0);
  3622. /* Disable HW interrupts */
  3623. bnx2x_int_disable(bp);
  3624. /* In case of parity errors don't handle attentions so that
  3625. * other function would "see" parity errors.
  3626. */
  3627. #else
  3628. bnx2x_panic();
  3629. #endif
  3630. bnx2x_release_alr(bp);
  3631. return;
  3632. }
  3633. attn.sig[0] = REG_RD(bp, MISC_REG_AEU_AFTER_INVERT_1_FUNC_0 + port*4);
  3634. attn.sig[1] = REG_RD(bp, MISC_REG_AEU_AFTER_INVERT_2_FUNC_0 + port*4);
  3635. attn.sig[2] = REG_RD(bp, MISC_REG_AEU_AFTER_INVERT_3_FUNC_0 + port*4);
  3636. attn.sig[3] = REG_RD(bp, MISC_REG_AEU_AFTER_INVERT_4_FUNC_0 + port*4);
  3637. if (!CHIP_IS_E1x(bp))
  3638. attn.sig[4] =
  3639. REG_RD(bp, MISC_REG_AEU_AFTER_INVERT_5_FUNC_0 + port*4);
  3640. else
  3641. attn.sig[4] = 0;
  3642. DP(NETIF_MSG_HW, "attn: %08x %08x %08x %08x %08x\n",
  3643. attn.sig[0], attn.sig[1], attn.sig[2], attn.sig[3], attn.sig[4]);
  3644. for (index = 0; index < MAX_DYNAMIC_ATTN_GRPS; index++) {
  3645. if (deasserted & (1 << index)) {
  3646. group_mask = &bp->attn_group[index];
  3647. DP(NETIF_MSG_HW, "group[%d]: %08x %08x "
  3648. "%08x %08x %08x\n",
  3649. index,
  3650. group_mask->sig[0], group_mask->sig[1],
  3651. group_mask->sig[2], group_mask->sig[3],
  3652. group_mask->sig[4]);
  3653. bnx2x_attn_int_deasserted4(bp,
  3654. attn.sig[4] & group_mask->sig[4]);
  3655. bnx2x_attn_int_deasserted3(bp,
  3656. attn.sig[3] & group_mask->sig[3]);
  3657. bnx2x_attn_int_deasserted1(bp,
  3658. attn.sig[1] & group_mask->sig[1]);
  3659. bnx2x_attn_int_deasserted2(bp,
  3660. attn.sig[2] & group_mask->sig[2]);
  3661. bnx2x_attn_int_deasserted0(bp,
  3662. attn.sig[0] & group_mask->sig[0]);
  3663. }
  3664. }
  3665. bnx2x_release_alr(bp);
  3666. if (bp->common.int_block == INT_BLOCK_HC)
  3667. reg_addr = (HC_REG_COMMAND_REG + port*32 +
  3668. COMMAND_REG_ATTN_BITS_CLR);
  3669. else
  3670. reg_addr = (BAR_IGU_INTMEM + IGU_CMD_ATTN_BIT_CLR_UPPER*8);
  3671. val = ~deasserted;
  3672. DP(NETIF_MSG_HW, "about to mask 0x%08x at %s addr 0x%x\n", val,
  3673. (bp->common.int_block == INT_BLOCK_HC) ? "HC" : "IGU", reg_addr);
  3674. REG_WR(bp, reg_addr, val);
  3675. if (~bp->attn_state & deasserted)
  3676. BNX2X_ERR("IGU ERROR\n");
  3677. reg_addr = port ? MISC_REG_AEU_MASK_ATTN_FUNC_1 :
  3678. MISC_REG_AEU_MASK_ATTN_FUNC_0;
  3679. bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_PORT0_ATT_MASK + port);
  3680. aeu_mask = REG_RD(bp, reg_addr);
  3681. DP(NETIF_MSG_HW, "aeu_mask %x newly deasserted %x\n",
  3682. aeu_mask, deasserted);
  3683. aeu_mask |= (deasserted & 0x3ff);
  3684. DP(NETIF_MSG_HW, "new mask %x\n", aeu_mask);
  3685. REG_WR(bp, reg_addr, aeu_mask);
  3686. bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_PORT0_ATT_MASK + port);
  3687. DP(NETIF_MSG_HW, "attn_state %x\n", bp->attn_state);
  3688. bp->attn_state &= ~deasserted;
  3689. DP(NETIF_MSG_HW, "new state %x\n", bp->attn_state);
  3690. }
  3691. static void bnx2x_attn_int(struct bnx2x *bp)
  3692. {
  3693. /* read local copy of bits */
  3694. u32 attn_bits = le32_to_cpu(bp->def_status_blk->atten_status_block.
  3695. attn_bits);
  3696. u32 attn_ack = le32_to_cpu(bp->def_status_blk->atten_status_block.
  3697. attn_bits_ack);
  3698. u32 attn_state = bp->attn_state;
  3699. /* look for changed bits */
  3700. u32 asserted = attn_bits & ~attn_ack & ~attn_state;
  3701. u32 deasserted = ~attn_bits & attn_ack & attn_state;
  3702. DP(NETIF_MSG_HW,
  3703. "attn_bits %x attn_ack %x asserted %x deasserted %x\n",
  3704. attn_bits, attn_ack, asserted, deasserted);
  3705. if (~(attn_bits ^ attn_ack) & (attn_bits ^ attn_state))
  3706. BNX2X_ERR("BAD attention state\n");
  3707. /* handle bits that were raised */
  3708. if (asserted)
  3709. bnx2x_attn_int_asserted(bp, asserted);
  3710. if (deasserted)
  3711. bnx2x_attn_int_deasserted(bp, deasserted);
  3712. }
  3713. void bnx2x_igu_ack_sb(struct bnx2x *bp, u8 igu_sb_id, u8 segment,
  3714. u16 index, u8 op, u8 update)
  3715. {
  3716. u32 igu_addr = BAR_IGU_INTMEM + (IGU_CMD_INT_ACK_BASE + igu_sb_id)*8;
  3717. bnx2x_igu_ack_sb_gen(bp, igu_sb_id, segment, index, op, update,
  3718. igu_addr);
  3719. }
  3720. static inline void bnx2x_update_eq_prod(struct bnx2x *bp, u16 prod)
  3721. {
  3722. /* No memory barriers */
  3723. storm_memset_eq_prod(bp, prod, BP_FUNC(bp));
  3724. mmiowb(); /* keep prod updates ordered */
  3725. }
  3726. #ifdef BCM_CNIC
  3727. static int bnx2x_cnic_handle_cfc_del(struct bnx2x *bp, u32 cid,
  3728. union event_ring_elem *elem)
  3729. {
  3730. u8 err = elem->message.error;
  3731. if (!bp->cnic_eth_dev.starting_cid ||
  3732. (cid < bp->cnic_eth_dev.starting_cid &&
  3733. cid != bp->cnic_eth_dev.iscsi_l2_cid))
  3734. return 1;
  3735. DP(BNX2X_MSG_SP, "got delete ramrod for CNIC CID %d\n", cid);
  3736. if (unlikely(err)) {
  3737. BNX2X_ERR("got delete ramrod for CNIC CID %d with error!\n",
  3738. cid);
  3739. bnx2x_panic_dump(bp);
  3740. }
  3741. bnx2x_cnic_cfc_comp(bp, cid, err);
  3742. return 0;
  3743. }
  3744. #endif
  3745. static inline void bnx2x_handle_mcast_eqe(struct bnx2x *bp)
  3746. {
  3747. struct bnx2x_mcast_ramrod_params rparam;
  3748. int rc;
  3749. memset(&rparam, 0, sizeof(rparam));
  3750. rparam.mcast_obj = &bp->mcast_obj;
  3751. netif_addr_lock_bh(bp->dev);
  3752. /* Clear pending state for the last command */
  3753. bp->mcast_obj.raw.clear_pending(&bp->mcast_obj.raw);
  3754. /* If there are pending mcast commands - send them */
  3755. if (bp->mcast_obj.check_pending(&bp->mcast_obj)) {
  3756. rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT);
  3757. if (rc < 0)
  3758. BNX2X_ERR("Failed to send pending mcast commands: %d\n",
  3759. rc);
  3760. }
  3761. netif_addr_unlock_bh(bp->dev);
  3762. }
  3763. static inline void bnx2x_handle_classification_eqe(struct bnx2x *bp,
  3764. union event_ring_elem *elem)
  3765. {
  3766. unsigned long ramrod_flags = 0;
  3767. int rc = 0;
  3768. u32 cid = elem->message.data.eth_event.echo & BNX2X_SWCID_MASK;
  3769. struct bnx2x_vlan_mac_obj *vlan_mac_obj;
  3770. /* Always push next commands out, don't wait here */
  3771. __set_bit(RAMROD_CONT, &ramrod_flags);
  3772. switch (elem->message.data.eth_event.echo >> BNX2X_SWCID_SHIFT) {
  3773. case BNX2X_FILTER_MAC_PENDING:
  3774. #ifdef BCM_CNIC
  3775. if (cid == BNX2X_ISCSI_ETH_CID)
  3776. vlan_mac_obj = &bp->iscsi_l2_mac_obj;
  3777. else
  3778. #endif
  3779. vlan_mac_obj = &bp->fp[cid].mac_obj;
  3780. break;
  3781. case BNX2X_FILTER_MCAST_PENDING:
  3782. /* This is only relevant for 57710 where multicast MACs are
  3783. * configured as unicast MACs using the same ramrod.
  3784. */
  3785. bnx2x_handle_mcast_eqe(bp);
  3786. return;
  3787. default:
  3788. BNX2X_ERR("Unsupported classification command: %d\n",
  3789. elem->message.data.eth_event.echo);
  3790. return;
  3791. }
  3792. rc = vlan_mac_obj->complete(bp, vlan_mac_obj, elem, &ramrod_flags);
  3793. if (rc < 0)
  3794. BNX2X_ERR("Failed to schedule new commands: %d\n", rc);
  3795. else if (rc > 0)
  3796. DP(BNX2X_MSG_SP, "Scheduled next pending commands...\n");
  3797. }
  3798. #ifdef BCM_CNIC
  3799. static void bnx2x_set_iscsi_eth_rx_mode(struct bnx2x *bp, bool start);
  3800. #endif
  3801. static inline void bnx2x_handle_rx_mode_eqe(struct bnx2x *bp)
  3802. {
  3803. netif_addr_lock_bh(bp->dev);
  3804. clear_bit(BNX2X_FILTER_RX_MODE_PENDING, &bp->sp_state);
  3805. /* Send rx_mode command again if was requested */
  3806. if (test_and_clear_bit(BNX2X_FILTER_RX_MODE_SCHED, &bp->sp_state))
  3807. bnx2x_set_storm_rx_mode(bp);
  3808. #ifdef BCM_CNIC
  3809. else if (test_and_clear_bit(BNX2X_FILTER_ISCSI_ETH_START_SCHED,
  3810. &bp->sp_state))
  3811. bnx2x_set_iscsi_eth_rx_mode(bp, true);
  3812. else if (test_and_clear_bit(BNX2X_FILTER_ISCSI_ETH_STOP_SCHED,
  3813. &bp->sp_state))
  3814. bnx2x_set_iscsi_eth_rx_mode(bp, false);
  3815. #endif
  3816. netif_addr_unlock_bh(bp->dev);
  3817. }
  3818. static inline struct bnx2x_queue_sp_obj *bnx2x_cid_to_q_obj(
  3819. struct bnx2x *bp, u32 cid)
  3820. {
  3821. DP(BNX2X_MSG_SP, "retrieving fp from cid %d\n", cid);
  3822. #ifdef BCM_CNIC
  3823. if (cid == BNX2X_FCOE_ETH_CID)
  3824. return &bnx2x_fcoe(bp, q_obj);
  3825. else
  3826. #endif
  3827. return &bnx2x_fp(bp, CID_TO_FP(cid), q_obj);
  3828. }
  3829. static void bnx2x_eq_int(struct bnx2x *bp)
  3830. {
  3831. u16 hw_cons, sw_cons, sw_prod;
  3832. union event_ring_elem *elem;
  3833. u32 cid;
  3834. u8 opcode;
  3835. int spqe_cnt = 0;
  3836. struct bnx2x_queue_sp_obj *q_obj;
  3837. struct bnx2x_func_sp_obj *f_obj = &bp->func_obj;
  3838. struct bnx2x_raw_obj *rss_raw = &bp->rss_conf_obj.raw;
  3839. hw_cons = le16_to_cpu(*bp->eq_cons_sb);
  3840. /* The hw_cos range is 1-255, 257 - the sw_cons range is 0-254, 256.
  3841. * when we get the the next-page we nned to adjust so the loop
  3842. * condition below will be met. The next element is the size of a
  3843. * regular element and hence incrementing by 1
  3844. */
  3845. if ((hw_cons & EQ_DESC_MAX_PAGE) == EQ_DESC_MAX_PAGE)
  3846. hw_cons++;
  3847. /* This function may never run in parallel with itself for a
  3848. * specific bp, thus there is no need in "paired" read memory
  3849. * barrier here.
  3850. */
  3851. sw_cons = bp->eq_cons;
  3852. sw_prod = bp->eq_prod;
  3853. DP(BNX2X_MSG_SP, "EQ: hw_cons %u sw_cons %u bp->eq_spq_left %x\n",
  3854. hw_cons, sw_cons, atomic_read(&bp->eq_spq_left));
  3855. for (; sw_cons != hw_cons;
  3856. sw_prod = NEXT_EQ_IDX(sw_prod), sw_cons = NEXT_EQ_IDX(sw_cons)) {
  3857. elem = &bp->eq_ring[EQ_DESC(sw_cons)];
  3858. cid = SW_CID(elem->message.data.cfc_del_event.cid);
  3859. opcode = elem->message.opcode;
  3860. /* handle eq element */
  3861. switch (opcode) {
  3862. case EVENT_RING_OPCODE_STAT_QUERY:
  3863. DP(NETIF_MSG_TIMER, "got statistics comp event %d\n",
  3864. bp->stats_comp++);
  3865. /* nothing to do with stats comp */
  3866. goto next_spqe;
  3867. case EVENT_RING_OPCODE_CFC_DEL:
  3868. /* handle according to cid range */
  3869. /*
  3870. * we may want to verify here that the bp state is
  3871. * HALTING
  3872. */
  3873. DP(BNX2X_MSG_SP,
  3874. "got delete ramrod for MULTI[%d]\n", cid);
  3875. #ifdef BCM_CNIC
  3876. if (!bnx2x_cnic_handle_cfc_del(bp, cid, elem))
  3877. goto next_spqe;
  3878. #endif
  3879. q_obj = bnx2x_cid_to_q_obj(bp, cid);
  3880. if (q_obj->complete_cmd(bp, q_obj, BNX2X_Q_CMD_CFC_DEL))
  3881. break;
  3882. goto next_spqe;
  3883. case EVENT_RING_OPCODE_STOP_TRAFFIC:
  3884. DP(BNX2X_MSG_SP, "got STOP TRAFFIC\n");
  3885. if (f_obj->complete_cmd(bp, f_obj,
  3886. BNX2X_F_CMD_TX_STOP))
  3887. break;
  3888. bnx2x_dcbx_set_params(bp, BNX2X_DCBX_STATE_TX_PAUSED);
  3889. goto next_spqe;
  3890. case EVENT_RING_OPCODE_START_TRAFFIC:
  3891. DP(BNX2X_MSG_SP, "got START TRAFFIC\n");
  3892. if (f_obj->complete_cmd(bp, f_obj,
  3893. BNX2X_F_CMD_TX_START))
  3894. break;
  3895. bnx2x_dcbx_set_params(bp, BNX2X_DCBX_STATE_TX_RELEASED);
  3896. goto next_spqe;
  3897. case EVENT_RING_OPCODE_FUNCTION_START:
  3898. DP(BNX2X_MSG_SP, "got FUNC_START ramrod\n");
  3899. if (f_obj->complete_cmd(bp, f_obj, BNX2X_F_CMD_START))
  3900. break;
  3901. goto next_spqe;
  3902. case EVENT_RING_OPCODE_FUNCTION_STOP:
  3903. DP(BNX2X_MSG_SP, "got FUNC_STOP ramrod\n");
  3904. if (f_obj->complete_cmd(bp, f_obj, BNX2X_F_CMD_STOP))
  3905. break;
  3906. goto next_spqe;
  3907. }
  3908. switch (opcode | bp->state) {
  3909. case (EVENT_RING_OPCODE_RSS_UPDATE_RULES |
  3910. BNX2X_STATE_OPEN):
  3911. case (EVENT_RING_OPCODE_RSS_UPDATE_RULES |
  3912. BNX2X_STATE_OPENING_WAIT4_PORT):
  3913. cid = elem->message.data.eth_event.echo &
  3914. BNX2X_SWCID_MASK;
  3915. DP(BNX2X_MSG_SP, "got RSS_UPDATE ramrod. CID %d\n",
  3916. cid);
  3917. rss_raw->clear_pending(rss_raw);
  3918. break;
  3919. case (EVENT_RING_OPCODE_SET_MAC | BNX2X_STATE_OPEN):
  3920. case (EVENT_RING_OPCODE_SET_MAC | BNX2X_STATE_DIAG):
  3921. case (EVENT_RING_OPCODE_SET_MAC |
  3922. BNX2X_STATE_CLOSING_WAIT4_HALT):
  3923. case (EVENT_RING_OPCODE_CLASSIFICATION_RULES |
  3924. BNX2X_STATE_OPEN):
  3925. case (EVENT_RING_OPCODE_CLASSIFICATION_RULES |
  3926. BNX2X_STATE_DIAG):
  3927. case (EVENT_RING_OPCODE_CLASSIFICATION_RULES |
  3928. BNX2X_STATE_CLOSING_WAIT4_HALT):
  3929. DP(BNX2X_MSG_SP, "got (un)set mac ramrod\n");
  3930. bnx2x_handle_classification_eqe(bp, elem);
  3931. break;
  3932. case (EVENT_RING_OPCODE_MULTICAST_RULES |
  3933. BNX2X_STATE_OPEN):
  3934. case (EVENT_RING_OPCODE_MULTICAST_RULES |
  3935. BNX2X_STATE_DIAG):
  3936. case (EVENT_RING_OPCODE_MULTICAST_RULES |
  3937. BNX2X_STATE_CLOSING_WAIT4_HALT):
  3938. DP(BNX2X_MSG_SP, "got mcast ramrod\n");
  3939. bnx2x_handle_mcast_eqe(bp);
  3940. break;
  3941. case (EVENT_RING_OPCODE_FILTERS_RULES |
  3942. BNX2X_STATE_OPEN):
  3943. case (EVENT_RING_OPCODE_FILTERS_RULES |
  3944. BNX2X_STATE_DIAG):
  3945. case (EVENT_RING_OPCODE_FILTERS_RULES |
  3946. BNX2X_STATE_CLOSING_WAIT4_HALT):
  3947. DP(BNX2X_MSG_SP, "got rx_mode ramrod\n");
  3948. bnx2x_handle_rx_mode_eqe(bp);
  3949. break;
  3950. default:
  3951. /* unknown event log error and continue */
  3952. BNX2X_ERR("Unknown EQ event %d, bp->state 0x%x\n",
  3953. elem->message.opcode, bp->state);
  3954. }
  3955. next_spqe:
  3956. spqe_cnt++;
  3957. } /* for */
  3958. smp_mb__before_atomic_inc();
  3959. atomic_add(spqe_cnt, &bp->eq_spq_left);
  3960. bp->eq_cons = sw_cons;
  3961. bp->eq_prod = sw_prod;
  3962. /* Make sure that above mem writes were issued towards the memory */
  3963. smp_wmb();
  3964. /* update producer */
  3965. bnx2x_update_eq_prod(bp, bp->eq_prod);
  3966. }
  3967. static void bnx2x_sp_task(struct work_struct *work)
  3968. {
  3969. struct bnx2x *bp = container_of(work, struct bnx2x, sp_task.work);
  3970. u16 status;
  3971. status = bnx2x_update_dsb_idx(bp);
  3972. /* if (status == 0) */
  3973. /* BNX2X_ERR("spurious slowpath interrupt!\n"); */
  3974. DP(NETIF_MSG_INTR, "got a slowpath interrupt (status 0x%x)\n", status);
  3975. /* HW attentions */
  3976. if (status & BNX2X_DEF_SB_ATT_IDX) {
  3977. bnx2x_attn_int(bp);
  3978. status &= ~BNX2X_DEF_SB_ATT_IDX;
  3979. }
  3980. /* SP events: STAT_QUERY and others */
  3981. if (status & BNX2X_DEF_SB_IDX) {
  3982. #ifdef BCM_CNIC
  3983. struct bnx2x_fastpath *fp = bnx2x_fcoe_fp(bp);
  3984. if ((!NO_FCOE(bp)) &&
  3985. (bnx2x_has_rx_work(fp) || bnx2x_has_tx_work(fp))) {
  3986. /*
  3987. * Prevent local bottom-halves from running as
  3988. * we are going to change the local NAPI list.
  3989. */
  3990. local_bh_disable();
  3991. napi_schedule(&bnx2x_fcoe(bp, napi));
  3992. local_bh_enable();
  3993. }
  3994. #endif
  3995. /* Handle EQ completions */
  3996. bnx2x_eq_int(bp);
  3997. bnx2x_ack_sb(bp, bp->igu_dsb_id, USTORM_ID,
  3998. le16_to_cpu(bp->def_idx), IGU_INT_NOP, 1);
  3999. status &= ~BNX2X_DEF_SB_IDX;
  4000. }
  4001. if (unlikely(status))
  4002. DP(NETIF_MSG_INTR, "got an unknown interrupt! (status 0x%x)\n",
  4003. status);
  4004. bnx2x_ack_sb(bp, bp->igu_dsb_id, ATTENTION_ID,
  4005. le16_to_cpu(bp->def_att_idx), IGU_INT_ENABLE, 1);
  4006. }
  4007. irqreturn_t bnx2x_msix_sp_int(int irq, void *dev_instance)
  4008. {
  4009. struct net_device *dev = dev_instance;
  4010. struct bnx2x *bp = netdev_priv(dev);
  4011. bnx2x_ack_sb(bp, bp->igu_dsb_id, USTORM_ID, 0,
  4012. IGU_INT_DISABLE, 0);
  4013. #ifdef BNX2X_STOP_ON_ERROR
  4014. if (unlikely(bp->panic))
  4015. return IRQ_HANDLED;
  4016. #endif
  4017. #ifdef BCM_CNIC
  4018. {
  4019. struct cnic_ops *c_ops;
  4020. rcu_read_lock();
  4021. c_ops = rcu_dereference(bp->cnic_ops);
  4022. if (c_ops)
  4023. c_ops->cnic_handler(bp->cnic_data, NULL);
  4024. rcu_read_unlock();
  4025. }
  4026. #endif
  4027. queue_delayed_work(bnx2x_wq, &bp->sp_task, 0);
  4028. return IRQ_HANDLED;
  4029. }
  4030. /* end of slow path */
  4031. void bnx2x_drv_pulse(struct bnx2x *bp)
  4032. {
  4033. SHMEM_WR(bp, func_mb[BP_FW_MB_IDX(bp)].drv_pulse_mb,
  4034. bp->fw_drv_pulse_wr_seq);
  4035. }
  4036. static void bnx2x_timer(unsigned long data)
  4037. {
  4038. u8 cos;
  4039. struct bnx2x *bp = (struct bnx2x *) data;
  4040. if (!netif_running(bp->dev))
  4041. return;
  4042. if (poll) {
  4043. struct bnx2x_fastpath *fp = &bp->fp[0];
  4044. for_each_cos_in_tx_queue(fp, cos)
  4045. bnx2x_tx_int(bp, &fp->txdata[cos]);
  4046. bnx2x_rx_int(fp, 1000);
  4047. }
  4048. if (!BP_NOMCP(bp)) {
  4049. int mb_idx = BP_FW_MB_IDX(bp);
  4050. u32 drv_pulse;
  4051. u32 mcp_pulse;
  4052. ++bp->fw_drv_pulse_wr_seq;
  4053. bp->fw_drv_pulse_wr_seq &= DRV_PULSE_SEQ_MASK;
  4054. /* TBD - add SYSTEM_TIME */
  4055. drv_pulse = bp->fw_drv_pulse_wr_seq;
  4056. bnx2x_drv_pulse(bp);
  4057. mcp_pulse = (SHMEM_RD(bp, func_mb[mb_idx].mcp_pulse_mb) &
  4058. MCP_PULSE_SEQ_MASK);
  4059. /* The delta between driver pulse and mcp response
  4060. * should be 1 (before mcp response) or 0 (after mcp response)
  4061. */
  4062. if ((drv_pulse != mcp_pulse) &&
  4063. (drv_pulse != ((mcp_pulse + 1) & MCP_PULSE_SEQ_MASK))) {
  4064. /* someone lost a heartbeat... */
  4065. BNX2X_ERR("drv_pulse (0x%x) != mcp_pulse (0x%x)\n",
  4066. drv_pulse, mcp_pulse);
  4067. }
  4068. }
  4069. if (bp->state == BNX2X_STATE_OPEN)
  4070. bnx2x_stats_handle(bp, STATS_EVENT_UPDATE);
  4071. mod_timer(&bp->timer, jiffies + bp->current_interval);
  4072. }
  4073. /* end of Statistics */
  4074. /* nic init */
  4075. /*
  4076. * nic init service functions
  4077. */
  4078. static inline void bnx2x_fill(struct bnx2x *bp, u32 addr, int fill, u32 len)
  4079. {
  4080. u32 i;
  4081. if (!(len%4) && !(addr%4))
  4082. for (i = 0; i < len; i += 4)
  4083. REG_WR(bp, addr + i, fill);
  4084. else
  4085. for (i = 0; i < len; i++)
  4086. REG_WR8(bp, addr + i, fill);
  4087. }
  4088. /* helper: writes FP SP data to FW - data_size in dwords */
  4089. static inline void bnx2x_wr_fp_sb_data(struct bnx2x *bp,
  4090. int fw_sb_id,
  4091. u32 *sb_data_p,
  4092. u32 data_size)
  4093. {
  4094. int index;
  4095. for (index = 0; index < data_size; index++)
  4096. REG_WR(bp, BAR_CSTRORM_INTMEM +
  4097. CSTORM_STATUS_BLOCK_DATA_OFFSET(fw_sb_id) +
  4098. sizeof(u32)*index,
  4099. *(sb_data_p + index));
  4100. }
  4101. static inline void bnx2x_zero_fp_sb(struct bnx2x *bp, int fw_sb_id)
  4102. {
  4103. u32 *sb_data_p;
  4104. u32 data_size = 0;
  4105. struct hc_status_block_data_e2 sb_data_e2;
  4106. struct hc_status_block_data_e1x sb_data_e1x;
  4107. /* disable the function first */
  4108. if (!CHIP_IS_E1x(bp)) {
  4109. memset(&sb_data_e2, 0, sizeof(struct hc_status_block_data_e2));
  4110. sb_data_e2.common.state = SB_DISABLED;
  4111. sb_data_e2.common.p_func.vf_valid = false;
  4112. sb_data_p = (u32 *)&sb_data_e2;
  4113. data_size = sizeof(struct hc_status_block_data_e2)/sizeof(u32);
  4114. } else {
  4115. memset(&sb_data_e1x, 0,
  4116. sizeof(struct hc_status_block_data_e1x));
  4117. sb_data_e1x.common.state = SB_DISABLED;
  4118. sb_data_e1x.common.p_func.vf_valid = false;
  4119. sb_data_p = (u32 *)&sb_data_e1x;
  4120. data_size = sizeof(struct hc_status_block_data_e1x)/sizeof(u32);
  4121. }
  4122. bnx2x_wr_fp_sb_data(bp, fw_sb_id, sb_data_p, data_size);
  4123. bnx2x_fill(bp, BAR_CSTRORM_INTMEM +
  4124. CSTORM_STATUS_BLOCK_OFFSET(fw_sb_id), 0,
  4125. CSTORM_STATUS_BLOCK_SIZE);
  4126. bnx2x_fill(bp, BAR_CSTRORM_INTMEM +
  4127. CSTORM_SYNC_BLOCK_OFFSET(fw_sb_id), 0,
  4128. CSTORM_SYNC_BLOCK_SIZE);
  4129. }
  4130. /* helper: writes SP SB data to FW */
  4131. static inline void bnx2x_wr_sp_sb_data(struct bnx2x *bp,
  4132. struct hc_sp_status_block_data *sp_sb_data)
  4133. {
  4134. int func = BP_FUNC(bp);
  4135. int i;
  4136. for (i = 0; i < sizeof(struct hc_sp_status_block_data)/sizeof(u32); i++)
  4137. REG_WR(bp, BAR_CSTRORM_INTMEM +
  4138. CSTORM_SP_STATUS_BLOCK_DATA_OFFSET(func) +
  4139. i*sizeof(u32),
  4140. *((u32 *)sp_sb_data + i));
  4141. }
  4142. static inline void bnx2x_zero_sp_sb(struct bnx2x *bp)
  4143. {
  4144. int func = BP_FUNC(bp);
  4145. struct hc_sp_status_block_data sp_sb_data;
  4146. memset(&sp_sb_data, 0, sizeof(struct hc_sp_status_block_data));
  4147. sp_sb_data.state = SB_DISABLED;
  4148. sp_sb_data.p_func.vf_valid = false;
  4149. bnx2x_wr_sp_sb_data(bp, &sp_sb_data);
  4150. bnx2x_fill(bp, BAR_CSTRORM_INTMEM +
  4151. CSTORM_SP_STATUS_BLOCK_OFFSET(func), 0,
  4152. CSTORM_SP_STATUS_BLOCK_SIZE);
  4153. bnx2x_fill(bp, BAR_CSTRORM_INTMEM +
  4154. CSTORM_SP_SYNC_BLOCK_OFFSET(func), 0,
  4155. CSTORM_SP_SYNC_BLOCK_SIZE);
  4156. }
  4157. static inline
  4158. void bnx2x_setup_ndsb_state_machine(struct hc_status_block_sm *hc_sm,
  4159. int igu_sb_id, int igu_seg_id)
  4160. {
  4161. hc_sm->igu_sb_id = igu_sb_id;
  4162. hc_sm->igu_seg_id = igu_seg_id;
  4163. hc_sm->timer_value = 0xFF;
  4164. hc_sm->time_to_expire = 0xFFFFFFFF;
  4165. }
  4166. /* allocates state machine ids. */
  4167. static inline
  4168. void bnx2x_map_sb_state_machines(struct hc_index_data *index_data)
  4169. {
  4170. /* zero out state machine indices */
  4171. /* rx indices */
  4172. index_data[HC_INDEX_ETH_RX_CQ_CONS].flags &= ~HC_INDEX_DATA_SM_ID;
  4173. /* tx indices */
  4174. index_data[HC_INDEX_OOO_TX_CQ_CONS].flags &= ~HC_INDEX_DATA_SM_ID;
  4175. index_data[HC_INDEX_ETH_TX_CQ_CONS_COS0].flags &= ~HC_INDEX_DATA_SM_ID;
  4176. index_data[HC_INDEX_ETH_TX_CQ_CONS_COS1].flags &= ~HC_INDEX_DATA_SM_ID;
  4177. index_data[HC_INDEX_ETH_TX_CQ_CONS_COS2].flags &= ~HC_INDEX_DATA_SM_ID;
  4178. /* map indices */
  4179. /* rx indices */
  4180. index_data[HC_INDEX_ETH_RX_CQ_CONS].flags |=
  4181. SM_RX_ID << HC_INDEX_DATA_SM_ID_SHIFT;
  4182. /* tx indices */
  4183. index_data[HC_INDEX_OOO_TX_CQ_CONS].flags |=
  4184. SM_TX_ID << HC_INDEX_DATA_SM_ID_SHIFT;
  4185. index_data[HC_INDEX_ETH_TX_CQ_CONS_COS0].flags |=
  4186. SM_TX_ID << HC_INDEX_DATA_SM_ID_SHIFT;
  4187. index_data[HC_INDEX_ETH_TX_CQ_CONS_COS1].flags |=
  4188. SM_TX_ID << HC_INDEX_DATA_SM_ID_SHIFT;
  4189. index_data[HC_INDEX_ETH_TX_CQ_CONS_COS2].flags |=
  4190. SM_TX_ID << HC_INDEX_DATA_SM_ID_SHIFT;
  4191. }
  4192. static void bnx2x_init_sb(struct bnx2x *bp, dma_addr_t mapping, int vfid,
  4193. u8 vf_valid, int fw_sb_id, int igu_sb_id)
  4194. {
  4195. int igu_seg_id;
  4196. struct hc_status_block_data_e2 sb_data_e2;
  4197. struct hc_status_block_data_e1x sb_data_e1x;
  4198. struct hc_status_block_sm *hc_sm_p;
  4199. int data_size;
  4200. u32 *sb_data_p;
  4201. if (CHIP_INT_MODE_IS_BC(bp))
  4202. igu_seg_id = HC_SEG_ACCESS_NORM;
  4203. else
  4204. igu_seg_id = IGU_SEG_ACCESS_NORM;
  4205. bnx2x_zero_fp_sb(bp, fw_sb_id);
  4206. if (!CHIP_IS_E1x(bp)) {
  4207. memset(&sb_data_e2, 0, sizeof(struct hc_status_block_data_e2));
  4208. sb_data_e2.common.state = SB_ENABLED;
  4209. sb_data_e2.common.p_func.pf_id = BP_FUNC(bp);
  4210. sb_data_e2.common.p_func.vf_id = vfid;
  4211. sb_data_e2.common.p_func.vf_valid = vf_valid;
  4212. sb_data_e2.common.p_func.vnic_id = BP_VN(bp);
  4213. sb_data_e2.common.same_igu_sb_1b = true;
  4214. sb_data_e2.common.host_sb_addr.hi = U64_HI(mapping);
  4215. sb_data_e2.common.host_sb_addr.lo = U64_LO(mapping);
  4216. hc_sm_p = sb_data_e2.common.state_machine;
  4217. sb_data_p = (u32 *)&sb_data_e2;
  4218. data_size = sizeof(struct hc_status_block_data_e2)/sizeof(u32);
  4219. bnx2x_map_sb_state_machines(sb_data_e2.index_data);
  4220. } else {
  4221. memset(&sb_data_e1x, 0,
  4222. sizeof(struct hc_status_block_data_e1x));
  4223. sb_data_e1x.common.state = SB_ENABLED;
  4224. sb_data_e1x.common.p_func.pf_id = BP_FUNC(bp);
  4225. sb_data_e1x.common.p_func.vf_id = 0xff;
  4226. sb_data_e1x.common.p_func.vf_valid = false;
  4227. sb_data_e1x.common.p_func.vnic_id = BP_VN(bp);
  4228. sb_data_e1x.common.same_igu_sb_1b = true;
  4229. sb_data_e1x.common.host_sb_addr.hi = U64_HI(mapping);
  4230. sb_data_e1x.common.host_sb_addr.lo = U64_LO(mapping);
  4231. hc_sm_p = sb_data_e1x.common.state_machine;
  4232. sb_data_p = (u32 *)&sb_data_e1x;
  4233. data_size = sizeof(struct hc_status_block_data_e1x)/sizeof(u32);
  4234. bnx2x_map_sb_state_machines(sb_data_e1x.index_data);
  4235. }
  4236. bnx2x_setup_ndsb_state_machine(&hc_sm_p[SM_RX_ID],
  4237. igu_sb_id, igu_seg_id);
  4238. bnx2x_setup_ndsb_state_machine(&hc_sm_p[SM_TX_ID],
  4239. igu_sb_id, igu_seg_id);
  4240. DP(NETIF_MSG_HW, "Init FW SB %d\n", fw_sb_id);
  4241. /* write indecies to HW */
  4242. bnx2x_wr_fp_sb_data(bp, fw_sb_id, sb_data_p, data_size);
  4243. }
  4244. static void bnx2x_update_coalesce_sb(struct bnx2x *bp, u8 fw_sb_id,
  4245. u16 tx_usec, u16 rx_usec)
  4246. {
  4247. bnx2x_update_coalesce_sb_index(bp, fw_sb_id, HC_INDEX_ETH_RX_CQ_CONS,
  4248. false, rx_usec);
  4249. bnx2x_update_coalesce_sb_index(bp, fw_sb_id,
  4250. HC_INDEX_ETH_TX_CQ_CONS_COS0, false,
  4251. tx_usec);
  4252. bnx2x_update_coalesce_sb_index(bp, fw_sb_id,
  4253. HC_INDEX_ETH_TX_CQ_CONS_COS1, false,
  4254. tx_usec);
  4255. bnx2x_update_coalesce_sb_index(bp, fw_sb_id,
  4256. HC_INDEX_ETH_TX_CQ_CONS_COS2, false,
  4257. tx_usec);
  4258. }
  4259. static void bnx2x_init_def_sb(struct bnx2x *bp)
  4260. {
  4261. struct host_sp_status_block *def_sb = bp->def_status_blk;
  4262. dma_addr_t mapping = bp->def_status_blk_mapping;
  4263. int igu_sp_sb_index;
  4264. int igu_seg_id;
  4265. int port = BP_PORT(bp);
  4266. int func = BP_FUNC(bp);
  4267. int reg_offset, reg_offset_en5;
  4268. u64 section;
  4269. int index;
  4270. struct hc_sp_status_block_data sp_sb_data;
  4271. memset(&sp_sb_data, 0, sizeof(struct hc_sp_status_block_data));
  4272. if (CHIP_INT_MODE_IS_BC(bp)) {
  4273. igu_sp_sb_index = DEF_SB_IGU_ID;
  4274. igu_seg_id = HC_SEG_ACCESS_DEF;
  4275. } else {
  4276. igu_sp_sb_index = bp->igu_dsb_id;
  4277. igu_seg_id = IGU_SEG_ACCESS_DEF;
  4278. }
  4279. /* ATTN */
  4280. section = ((u64)mapping) + offsetof(struct host_sp_status_block,
  4281. atten_status_block);
  4282. def_sb->atten_status_block.status_block_id = igu_sp_sb_index;
  4283. bp->attn_state = 0;
  4284. reg_offset = (port ? MISC_REG_AEU_ENABLE1_FUNC_1_OUT_0 :
  4285. MISC_REG_AEU_ENABLE1_FUNC_0_OUT_0);
  4286. reg_offset_en5 = (port ? MISC_REG_AEU_ENABLE5_FUNC_1_OUT_0 :
  4287. MISC_REG_AEU_ENABLE5_FUNC_0_OUT_0);
  4288. for (index = 0; index < MAX_DYNAMIC_ATTN_GRPS; index++) {
  4289. int sindex;
  4290. /* take care of sig[0]..sig[4] */
  4291. for (sindex = 0; sindex < 4; sindex++)
  4292. bp->attn_group[index].sig[sindex] =
  4293. REG_RD(bp, reg_offset + sindex*0x4 + 0x10*index);
  4294. if (!CHIP_IS_E1x(bp))
  4295. /*
  4296. * enable5 is separate from the rest of the registers,
  4297. * and therefore the address skip is 4
  4298. * and not 16 between the different groups
  4299. */
  4300. bp->attn_group[index].sig[4] = REG_RD(bp,
  4301. reg_offset_en5 + 0x4*index);
  4302. else
  4303. bp->attn_group[index].sig[4] = 0;
  4304. }
  4305. if (bp->common.int_block == INT_BLOCK_HC) {
  4306. reg_offset = (port ? HC_REG_ATTN_MSG1_ADDR_L :
  4307. HC_REG_ATTN_MSG0_ADDR_L);
  4308. REG_WR(bp, reg_offset, U64_LO(section));
  4309. REG_WR(bp, reg_offset + 4, U64_HI(section));
  4310. } else if (!CHIP_IS_E1x(bp)) {
  4311. REG_WR(bp, IGU_REG_ATTN_MSG_ADDR_L, U64_LO(section));
  4312. REG_WR(bp, IGU_REG_ATTN_MSG_ADDR_H, U64_HI(section));
  4313. }
  4314. section = ((u64)mapping) + offsetof(struct host_sp_status_block,
  4315. sp_sb);
  4316. bnx2x_zero_sp_sb(bp);
  4317. sp_sb_data.state = SB_ENABLED;
  4318. sp_sb_data.host_sb_addr.lo = U64_LO(section);
  4319. sp_sb_data.host_sb_addr.hi = U64_HI(section);
  4320. sp_sb_data.igu_sb_id = igu_sp_sb_index;
  4321. sp_sb_data.igu_seg_id = igu_seg_id;
  4322. sp_sb_data.p_func.pf_id = func;
  4323. sp_sb_data.p_func.vnic_id = BP_VN(bp);
  4324. sp_sb_data.p_func.vf_id = 0xff;
  4325. bnx2x_wr_sp_sb_data(bp, &sp_sb_data);
  4326. bnx2x_ack_sb(bp, bp->igu_dsb_id, USTORM_ID, 0, IGU_INT_ENABLE, 0);
  4327. }
  4328. void bnx2x_update_coalesce(struct bnx2x *bp)
  4329. {
  4330. int i;
  4331. for_each_eth_queue(bp, i)
  4332. bnx2x_update_coalesce_sb(bp, bp->fp[i].fw_sb_id,
  4333. bp->tx_ticks, bp->rx_ticks);
  4334. }
  4335. static void bnx2x_init_sp_ring(struct bnx2x *bp)
  4336. {
  4337. spin_lock_init(&bp->spq_lock);
  4338. atomic_set(&bp->cq_spq_left, MAX_SPQ_PENDING);
  4339. bp->spq_prod_idx = 0;
  4340. bp->dsb_sp_prod = BNX2X_SP_DSB_INDEX;
  4341. bp->spq_prod_bd = bp->spq;
  4342. bp->spq_last_bd = bp->spq_prod_bd + MAX_SP_DESC_CNT;
  4343. }
  4344. static void bnx2x_init_eq_ring(struct bnx2x *bp)
  4345. {
  4346. int i;
  4347. for (i = 1; i <= NUM_EQ_PAGES; i++) {
  4348. union event_ring_elem *elem =
  4349. &bp->eq_ring[EQ_DESC_CNT_PAGE * i - 1];
  4350. elem->next_page.addr.hi =
  4351. cpu_to_le32(U64_HI(bp->eq_mapping +
  4352. BCM_PAGE_SIZE * (i % NUM_EQ_PAGES)));
  4353. elem->next_page.addr.lo =
  4354. cpu_to_le32(U64_LO(bp->eq_mapping +
  4355. BCM_PAGE_SIZE*(i % NUM_EQ_PAGES)));
  4356. }
  4357. bp->eq_cons = 0;
  4358. bp->eq_prod = NUM_EQ_DESC;
  4359. bp->eq_cons_sb = BNX2X_EQ_INDEX;
  4360. /* we want a warning message before it gets rought... */
  4361. atomic_set(&bp->eq_spq_left,
  4362. min_t(int, MAX_SP_DESC_CNT - MAX_SPQ_PENDING, NUM_EQ_DESC) - 1);
  4363. }
  4364. /* called with netif_addr_lock_bh() */
  4365. void bnx2x_set_q_rx_mode(struct bnx2x *bp, u8 cl_id,
  4366. unsigned long rx_mode_flags,
  4367. unsigned long rx_accept_flags,
  4368. unsigned long tx_accept_flags,
  4369. unsigned long ramrod_flags)
  4370. {
  4371. struct bnx2x_rx_mode_ramrod_params ramrod_param;
  4372. int rc;
  4373. memset(&ramrod_param, 0, sizeof(ramrod_param));
  4374. /* Prepare ramrod parameters */
  4375. ramrod_param.cid = 0;
  4376. ramrod_param.cl_id = cl_id;
  4377. ramrod_param.rx_mode_obj = &bp->rx_mode_obj;
  4378. ramrod_param.func_id = BP_FUNC(bp);
  4379. ramrod_param.pstate = &bp->sp_state;
  4380. ramrod_param.state = BNX2X_FILTER_RX_MODE_PENDING;
  4381. ramrod_param.rdata = bnx2x_sp(bp, rx_mode_rdata);
  4382. ramrod_param.rdata_mapping = bnx2x_sp_mapping(bp, rx_mode_rdata);
  4383. set_bit(BNX2X_FILTER_RX_MODE_PENDING, &bp->sp_state);
  4384. ramrod_param.ramrod_flags = ramrod_flags;
  4385. ramrod_param.rx_mode_flags = rx_mode_flags;
  4386. ramrod_param.rx_accept_flags = rx_accept_flags;
  4387. ramrod_param.tx_accept_flags = tx_accept_flags;
  4388. rc = bnx2x_config_rx_mode(bp, &ramrod_param);
  4389. if (rc < 0) {
  4390. BNX2X_ERR("Set rx_mode %d failed\n", bp->rx_mode);
  4391. return;
  4392. }
  4393. }
  4394. /* called with netif_addr_lock_bh() */
  4395. void bnx2x_set_storm_rx_mode(struct bnx2x *bp)
  4396. {
  4397. unsigned long rx_mode_flags = 0, ramrod_flags = 0;
  4398. unsigned long rx_accept_flags = 0, tx_accept_flags = 0;
  4399. #ifdef BCM_CNIC
  4400. if (!NO_FCOE(bp))
  4401. /* Configure rx_mode of FCoE Queue */
  4402. __set_bit(BNX2X_RX_MODE_FCOE_ETH, &rx_mode_flags);
  4403. #endif
  4404. switch (bp->rx_mode) {
  4405. case BNX2X_RX_MODE_NONE:
  4406. /*
  4407. * 'drop all' supersedes any accept flags that may have been
  4408. * passed to the function.
  4409. */
  4410. break;
  4411. case BNX2X_RX_MODE_NORMAL:
  4412. __set_bit(BNX2X_ACCEPT_UNICAST, &rx_accept_flags);
  4413. __set_bit(BNX2X_ACCEPT_MULTICAST, &rx_accept_flags);
  4414. __set_bit(BNX2X_ACCEPT_BROADCAST, &rx_accept_flags);
  4415. /* internal switching mode */
  4416. __set_bit(BNX2X_ACCEPT_UNICAST, &tx_accept_flags);
  4417. __set_bit(BNX2X_ACCEPT_MULTICAST, &tx_accept_flags);
  4418. __set_bit(BNX2X_ACCEPT_BROADCAST, &tx_accept_flags);
  4419. break;
  4420. case BNX2X_RX_MODE_ALLMULTI:
  4421. __set_bit(BNX2X_ACCEPT_UNICAST, &rx_accept_flags);
  4422. __set_bit(BNX2X_ACCEPT_ALL_MULTICAST, &rx_accept_flags);
  4423. __set_bit(BNX2X_ACCEPT_BROADCAST, &rx_accept_flags);
  4424. /* internal switching mode */
  4425. __set_bit(BNX2X_ACCEPT_UNICAST, &tx_accept_flags);
  4426. __set_bit(BNX2X_ACCEPT_ALL_MULTICAST, &tx_accept_flags);
  4427. __set_bit(BNX2X_ACCEPT_BROADCAST, &tx_accept_flags);
  4428. break;
  4429. case BNX2X_RX_MODE_PROMISC:
  4430. /* According to deffinition of SI mode, iface in promisc mode
  4431. * should receive matched and unmatched (in resolution of port)
  4432. * unicast packets.
  4433. */
  4434. __set_bit(BNX2X_ACCEPT_UNMATCHED, &rx_accept_flags);
  4435. __set_bit(BNX2X_ACCEPT_UNICAST, &rx_accept_flags);
  4436. __set_bit(BNX2X_ACCEPT_ALL_MULTICAST, &rx_accept_flags);
  4437. __set_bit(BNX2X_ACCEPT_BROADCAST, &rx_accept_flags);
  4438. /* internal switching mode */
  4439. __set_bit(BNX2X_ACCEPT_ALL_MULTICAST, &tx_accept_flags);
  4440. __set_bit(BNX2X_ACCEPT_BROADCAST, &tx_accept_flags);
  4441. if (IS_MF_SI(bp))
  4442. __set_bit(BNX2X_ACCEPT_ALL_UNICAST, &tx_accept_flags);
  4443. else
  4444. __set_bit(BNX2X_ACCEPT_UNICAST, &tx_accept_flags);
  4445. break;
  4446. default:
  4447. BNX2X_ERR("Unknown rx_mode: %d\n", bp->rx_mode);
  4448. return;
  4449. }
  4450. if (bp->rx_mode != BNX2X_RX_MODE_NONE) {
  4451. __set_bit(BNX2X_ACCEPT_ANY_VLAN, &rx_accept_flags);
  4452. __set_bit(BNX2X_ACCEPT_ANY_VLAN, &tx_accept_flags);
  4453. }
  4454. __set_bit(RAMROD_RX, &ramrod_flags);
  4455. __set_bit(RAMROD_TX, &ramrod_flags);
  4456. bnx2x_set_q_rx_mode(bp, bp->fp->cl_id, rx_mode_flags, rx_accept_flags,
  4457. tx_accept_flags, ramrod_flags);
  4458. }
  4459. static void bnx2x_init_internal_common(struct bnx2x *bp)
  4460. {
  4461. int i;
  4462. if (IS_MF_SI(bp))
  4463. /*
  4464. * In switch independent mode, the TSTORM needs to accept
  4465. * packets that failed classification, since approximate match
  4466. * mac addresses aren't written to NIG LLH
  4467. */
  4468. REG_WR8(bp, BAR_TSTRORM_INTMEM +
  4469. TSTORM_ACCEPT_CLASSIFY_FAILED_OFFSET, 2);
  4470. else if (!CHIP_IS_E1(bp)) /* 57710 doesn't support MF */
  4471. REG_WR8(bp, BAR_TSTRORM_INTMEM +
  4472. TSTORM_ACCEPT_CLASSIFY_FAILED_OFFSET, 0);
  4473. /* Zero this manually as its initialization is
  4474. currently missing in the initTool */
  4475. for (i = 0; i < (USTORM_AGG_DATA_SIZE >> 2); i++)
  4476. REG_WR(bp, BAR_USTRORM_INTMEM +
  4477. USTORM_AGG_DATA_OFFSET + i * 4, 0);
  4478. if (!CHIP_IS_E1x(bp)) {
  4479. REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_IGU_MODE_OFFSET,
  4480. CHIP_INT_MODE_IS_BC(bp) ?
  4481. HC_IGU_BC_MODE : HC_IGU_NBC_MODE);
  4482. }
  4483. }
  4484. static void bnx2x_init_internal(struct bnx2x *bp, u32 load_code)
  4485. {
  4486. switch (load_code) {
  4487. case FW_MSG_CODE_DRV_LOAD_COMMON:
  4488. case FW_MSG_CODE_DRV_LOAD_COMMON_CHIP:
  4489. bnx2x_init_internal_common(bp);
  4490. /* no break */
  4491. case FW_MSG_CODE_DRV_LOAD_PORT:
  4492. /* nothing to do */
  4493. /* no break */
  4494. case FW_MSG_CODE_DRV_LOAD_FUNCTION:
  4495. /* internal memory per function is
  4496. initialized inside bnx2x_pf_init */
  4497. break;
  4498. default:
  4499. BNX2X_ERR("Unknown load_code (0x%x) from MCP\n", load_code);
  4500. break;
  4501. }
  4502. }
  4503. static inline u8 bnx2x_fp_igu_sb_id(struct bnx2x_fastpath *fp)
  4504. {
  4505. return fp->bp->igu_base_sb + fp->index + CNIC_PRESENT;
  4506. }
  4507. static inline u8 bnx2x_fp_fw_sb_id(struct bnx2x_fastpath *fp)
  4508. {
  4509. return fp->bp->base_fw_ndsb + fp->index + CNIC_PRESENT;
  4510. }
  4511. static inline u8 bnx2x_fp_cl_id(struct bnx2x_fastpath *fp)
  4512. {
  4513. if (CHIP_IS_E1x(fp->bp))
  4514. return BP_L_ID(fp->bp) + fp->index;
  4515. else /* We want Client ID to be the same as IGU SB ID for 57712 */
  4516. return bnx2x_fp_igu_sb_id(fp);
  4517. }
  4518. static void bnx2x_init_eth_fp(struct bnx2x *bp, int fp_idx)
  4519. {
  4520. struct bnx2x_fastpath *fp = &bp->fp[fp_idx];
  4521. u8 cos;
  4522. unsigned long q_type = 0;
  4523. u32 cids[BNX2X_MULTI_TX_COS] = { 0 };
  4524. fp->rx_queue = fp_idx;
  4525. fp->cid = fp_idx;
  4526. fp->cl_id = bnx2x_fp_cl_id(fp);
  4527. fp->fw_sb_id = bnx2x_fp_fw_sb_id(fp);
  4528. fp->igu_sb_id = bnx2x_fp_igu_sb_id(fp);
  4529. /* qZone id equals to FW (per path) client id */
  4530. fp->cl_qzone_id = bnx2x_fp_qzone_id(fp);
  4531. /* init shortcut */
  4532. fp->ustorm_rx_prods_offset = bnx2x_rx_ustorm_prods_offset(fp);
  4533. /* Setup SB indicies */
  4534. fp->rx_cons_sb = BNX2X_RX_SB_INDEX;
  4535. /* Configure Queue State object */
  4536. __set_bit(BNX2X_Q_TYPE_HAS_RX, &q_type);
  4537. __set_bit(BNX2X_Q_TYPE_HAS_TX, &q_type);
  4538. BUG_ON(fp->max_cos > BNX2X_MULTI_TX_COS);
  4539. /* init tx data */
  4540. for_each_cos_in_tx_queue(fp, cos) {
  4541. bnx2x_init_txdata(bp, &fp->txdata[cos],
  4542. CID_COS_TO_TX_ONLY_CID(fp->cid, cos),
  4543. FP_COS_TO_TXQ(fp, cos),
  4544. BNX2X_TX_SB_INDEX_BASE + cos);
  4545. cids[cos] = fp->txdata[cos].cid;
  4546. }
  4547. bnx2x_init_queue_obj(bp, &fp->q_obj, fp->cl_id, cids, fp->max_cos,
  4548. BP_FUNC(bp), bnx2x_sp(bp, q_rdata),
  4549. bnx2x_sp_mapping(bp, q_rdata), q_type);
  4550. /**
  4551. * Configure classification DBs: Always enable Tx switching
  4552. */
  4553. bnx2x_init_vlan_mac_fp_objs(fp, BNX2X_OBJ_TYPE_RX_TX);
  4554. DP(NETIF_MSG_IFUP, "queue[%d]: bnx2x_init_sb(%p,%p) "
  4555. "cl_id %d fw_sb %d igu_sb %d\n",
  4556. fp_idx, bp, fp->status_blk.e2_sb, fp->cl_id, fp->fw_sb_id,
  4557. fp->igu_sb_id);
  4558. bnx2x_init_sb(bp, fp->status_blk_mapping, BNX2X_VF_ID_INVALID, false,
  4559. fp->fw_sb_id, fp->igu_sb_id);
  4560. bnx2x_update_fpsb_idx(fp);
  4561. }
  4562. void bnx2x_nic_init(struct bnx2x *bp, u32 load_code)
  4563. {
  4564. int i;
  4565. for_each_eth_queue(bp, i)
  4566. bnx2x_init_eth_fp(bp, i);
  4567. #ifdef BCM_CNIC
  4568. if (!NO_FCOE(bp))
  4569. bnx2x_init_fcoe_fp(bp);
  4570. bnx2x_init_sb(bp, bp->cnic_sb_mapping,
  4571. BNX2X_VF_ID_INVALID, false,
  4572. bnx2x_cnic_fw_sb_id(bp), bnx2x_cnic_igu_sb_id(bp));
  4573. #endif
  4574. /* Initialize MOD_ABS interrupts */
  4575. bnx2x_init_mod_abs_int(bp, &bp->link_vars, bp->common.chip_id,
  4576. bp->common.shmem_base, bp->common.shmem2_base,
  4577. BP_PORT(bp));
  4578. /* ensure status block indices were read */
  4579. rmb();
  4580. bnx2x_init_def_sb(bp);
  4581. bnx2x_update_dsb_idx(bp);
  4582. bnx2x_init_rx_rings(bp);
  4583. bnx2x_init_tx_rings(bp);
  4584. bnx2x_init_sp_ring(bp);
  4585. bnx2x_init_eq_ring(bp);
  4586. bnx2x_init_internal(bp, load_code);
  4587. bnx2x_pf_init(bp);
  4588. bnx2x_stats_init(bp);
  4589. /* flush all before enabling interrupts */
  4590. mb();
  4591. mmiowb();
  4592. bnx2x_int_enable(bp);
  4593. /* Check for SPIO5 */
  4594. bnx2x_attn_int_deasserted0(bp,
  4595. REG_RD(bp, MISC_REG_AEU_AFTER_INVERT_1_FUNC_0 + BP_PORT(bp)*4) &
  4596. AEU_INPUTS_ATTN_BITS_SPIO5);
  4597. }
  4598. /* end of nic init */
  4599. /*
  4600. * gzip service functions
  4601. */
  4602. static int bnx2x_gunzip_init(struct bnx2x *bp)
  4603. {
  4604. bp->gunzip_buf = dma_alloc_coherent(&bp->pdev->dev, FW_BUF_SIZE,
  4605. &bp->gunzip_mapping, GFP_KERNEL);
  4606. if (bp->gunzip_buf == NULL)
  4607. goto gunzip_nomem1;
  4608. bp->strm = kmalloc(sizeof(*bp->strm), GFP_KERNEL);
  4609. if (bp->strm == NULL)
  4610. goto gunzip_nomem2;
  4611. bp->strm->workspace = vmalloc(zlib_inflate_workspacesize());
  4612. if (bp->strm->workspace == NULL)
  4613. goto gunzip_nomem3;
  4614. return 0;
  4615. gunzip_nomem3:
  4616. kfree(bp->strm);
  4617. bp->strm = NULL;
  4618. gunzip_nomem2:
  4619. dma_free_coherent(&bp->pdev->dev, FW_BUF_SIZE, bp->gunzip_buf,
  4620. bp->gunzip_mapping);
  4621. bp->gunzip_buf = NULL;
  4622. gunzip_nomem1:
  4623. netdev_err(bp->dev, "Cannot allocate firmware buffer for"
  4624. " un-compression\n");
  4625. return -ENOMEM;
  4626. }
  4627. static void bnx2x_gunzip_end(struct bnx2x *bp)
  4628. {
  4629. if (bp->strm) {
  4630. vfree(bp->strm->workspace);
  4631. kfree(bp->strm);
  4632. bp->strm = NULL;
  4633. }
  4634. if (bp->gunzip_buf) {
  4635. dma_free_coherent(&bp->pdev->dev, FW_BUF_SIZE, bp->gunzip_buf,
  4636. bp->gunzip_mapping);
  4637. bp->gunzip_buf = NULL;
  4638. }
  4639. }
  4640. static int bnx2x_gunzip(struct bnx2x *bp, const u8 *zbuf, int len)
  4641. {
  4642. int n, rc;
  4643. /* check gzip header */
  4644. if ((zbuf[0] != 0x1f) || (zbuf[1] != 0x8b) || (zbuf[2] != Z_DEFLATED)) {
  4645. BNX2X_ERR("Bad gzip header\n");
  4646. return -EINVAL;
  4647. }
  4648. n = 10;
  4649. #define FNAME 0x8
  4650. if (zbuf[3] & FNAME)
  4651. while ((zbuf[n++] != 0) && (n < len));
  4652. bp->strm->next_in = (typeof(bp->strm->next_in))zbuf + n;
  4653. bp->strm->avail_in = len - n;
  4654. bp->strm->next_out = bp->gunzip_buf;
  4655. bp->strm->avail_out = FW_BUF_SIZE;
  4656. rc = zlib_inflateInit2(bp->strm, -MAX_WBITS);
  4657. if (rc != Z_OK)
  4658. return rc;
  4659. rc = zlib_inflate(bp->strm, Z_FINISH);
  4660. if ((rc != Z_OK) && (rc != Z_STREAM_END))
  4661. netdev_err(bp->dev, "Firmware decompression error: %s\n",
  4662. bp->strm->msg);
  4663. bp->gunzip_outlen = (FW_BUF_SIZE - bp->strm->avail_out);
  4664. if (bp->gunzip_outlen & 0x3)
  4665. netdev_err(bp->dev, "Firmware decompression error:"
  4666. " gunzip_outlen (%d) not aligned\n",
  4667. bp->gunzip_outlen);
  4668. bp->gunzip_outlen >>= 2;
  4669. zlib_inflateEnd(bp->strm);
  4670. if (rc == Z_STREAM_END)
  4671. return 0;
  4672. return rc;
  4673. }
  4674. /* nic load/unload */
  4675. /*
  4676. * General service functions
  4677. */
  4678. /* send a NIG loopback debug packet */
  4679. static void bnx2x_lb_pckt(struct bnx2x *bp)
  4680. {
  4681. u32 wb_write[3];
  4682. /* Ethernet source and destination addresses */
  4683. wb_write[0] = 0x55555555;
  4684. wb_write[1] = 0x55555555;
  4685. wb_write[2] = 0x20; /* SOP */
  4686. REG_WR_DMAE(bp, NIG_REG_DEBUG_PACKET_LB, wb_write, 3);
  4687. /* NON-IP protocol */
  4688. wb_write[0] = 0x09000000;
  4689. wb_write[1] = 0x55555555;
  4690. wb_write[2] = 0x10; /* EOP, eop_bvalid = 0 */
  4691. REG_WR_DMAE(bp, NIG_REG_DEBUG_PACKET_LB, wb_write, 3);
  4692. }
  4693. /* some of the internal memories
  4694. * are not directly readable from the driver
  4695. * to test them we send debug packets
  4696. */
  4697. static int bnx2x_int_mem_test(struct bnx2x *bp)
  4698. {
  4699. int factor;
  4700. int count, i;
  4701. u32 val = 0;
  4702. if (CHIP_REV_IS_FPGA(bp))
  4703. factor = 120;
  4704. else if (CHIP_REV_IS_EMUL(bp))
  4705. factor = 200;
  4706. else
  4707. factor = 1;
  4708. /* Disable inputs of parser neighbor blocks */
  4709. REG_WR(bp, TSDM_REG_ENABLE_IN1, 0x0);
  4710. REG_WR(bp, TCM_REG_PRS_IFEN, 0x0);
  4711. REG_WR(bp, CFC_REG_DEBUG0, 0x1);
  4712. REG_WR(bp, NIG_REG_PRS_REQ_IN_EN, 0x0);
  4713. /* Write 0 to parser credits for CFC search request */
  4714. REG_WR(bp, PRS_REG_CFC_SEARCH_INITIAL_CREDIT, 0x0);
  4715. /* send Ethernet packet */
  4716. bnx2x_lb_pckt(bp);
  4717. /* TODO do i reset NIG statistic? */
  4718. /* Wait until NIG register shows 1 packet of size 0x10 */
  4719. count = 1000 * factor;
  4720. while (count) {
  4721. bnx2x_read_dmae(bp, NIG_REG_STAT2_BRB_OCTET, 2);
  4722. val = *bnx2x_sp(bp, wb_data[0]);
  4723. if (val == 0x10)
  4724. break;
  4725. msleep(10);
  4726. count--;
  4727. }
  4728. if (val != 0x10) {
  4729. BNX2X_ERR("NIG timeout val = 0x%x\n", val);
  4730. return -1;
  4731. }
  4732. /* Wait until PRS register shows 1 packet */
  4733. count = 1000 * factor;
  4734. while (count) {
  4735. val = REG_RD(bp, PRS_REG_NUM_OF_PACKETS);
  4736. if (val == 1)
  4737. break;
  4738. msleep(10);
  4739. count--;
  4740. }
  4741. if (val != 0x1) {
  4742. BNX2X_ERR("PRS timeout val = 0x%x\n", val);
  4743. return -2;
  4744. }
  4745. /* Reset and init BRB, PRS */
  4746. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_CLEAR, 0x03);
  4747. msleep(50);
  4748. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_SET, 0x03);
  4749. msleep(50);
  4750. bnx2x_init_block(bp, BLOCK_BRB1, PHASE_COMMON);
  4751. bnx2x_init_block(bp, BLOCK_PRS, PHASE_COMMON);
  4752. DP(NETIF_MSG_HW, "part2\n");
  4753. /* Disable inputs of parser neighbor blocks */
  4754. REG_WR(bp, TSDM_REG_ENABLE_IN1, 0x0);
  4755. REG_WR(bp, TCM_REG_PRS_IFEN, 0x0);
  4756. REG_WR(bp, CFC_REG_DEBUG0, 0x1);
  4757. REG_WR(bp, NIG_REG_PRS_REQ_IN_EN, 0x0);
  4758. /* Write 0 to parser credits for CFC search request */
  4759. REG_WR(bp, PRS_REG_CFC_SEARCH_INITIAL_CREDIT, 0x0);
  4760. /* send 10 Ethernet packets */
  4761. for (i = 0; i < 10; i++)
  4762. bnx2x_lb_pckt(bp);
  4763. /* Wait until NIG register shows 10 + 1
  4764. packets of size 11*0x10 = 0xb0 */
  4765. count = 1000 * factor;
  4766. while (count) {
  4767. bnx2x_read_dmae(bp, NIG_REG_STAT2_BRB_OCTET, 2);
  4768. val = *bnx2x_sp(bp, wb_data[0]);
  4769. if (val == 0xb0)
  4770. break;
  4771. msleep(10);
  4772. count--;
  4773. }
  4774. if (val != 0xb0) {
  4775. BNX2X_ERR("NIG timeout val = 0x%x\n", val);
  4776. return -3;
  4777. }
  4778. /* Wait until PRS register shows 2 packets */
  4779. val = REG_RD(bp, PRS_REG_NUM_OF_PACKETS);
  4780. if (val != 2)
  4781. BNX2X_ERR("PRS timeout val = 0x%x\n", val);
  4782. /* Write 1 to parser credits for CFC search request */
  4783. REG_WR(bp, PRS_REG_CFC_SEARCH_INITIAL_CREDIT, 0x1);
  4784. /* Wait until PRS register shows 3 packets */
  4785. msleep(10 * factor);
  4786. /* Wait until NIG register shows 1 packet of size 0x10 */
  4787. val = REG_RD(bp, PRS_REG_NUM_OF_PACKETS);
  4788. if (val != 3)
  4789. BNX2X_ERR("PRS timeout val = 0x%x\n", val);
  4790. /* clear NIG EOP FIFO */
  4791. for (i = 0; i < 11; i++)
  4792. REG_RD(bp, NIG_REG_INGRESS_EOP_LB_FIFO);
  4793. val = REG_RD(bp, NIG_REG_INGRESS_EOP_LB_EMPTY);
  4794. if (val != 1) {
  4795. BNX2X_ERR("clear of NIG failed\n");
  4796. return -4;
  4797. }
  4798. /* Reset and init BRB, PRS, NIG */
  4799. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_CLEAR, 0x03);
  4800. msleep(50);
  4801. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_SET, 0x03);
  4802. msleep(50);
  4803. bnx2x_init_block(bp, BLOCK_BRB1, PHASE_COMMON);
  4804. bnx2x_init_block(bp, BLOCK_PRS, PHASE_COMMON);
  4805. #ifndef BCM_CNIC
  4806. /* set NIC mode */
  4807. REG_WR(bp, PRS_REG_NIC_MODE, 1);
  4808. #endif
  4809. /* Enable inputs of parser neighbor blocks */
  4810. REG_WR(bp, TSDM_REG_ENABLE_IN1, 0x7fffffff);
  4811. REG_WR(bp, TCM_REG_PRS_IFEN, 0x1);
  4812. REG_WR(bp, CFC_REG_DEBUG0, 0x0);
  4813. REG_WR(bp, NIG_REG_PRS_REQ_IN_EN, 0x1);
  4814. DP(NETIF_MSG_HW, "done\n");
  4815. return 0; /* OK */
  4816. }
  4817. static void bnx2x_enable_blocks_attention(struct bnx2x *bp)
  4818. {
  4819. REG_WR(bp, PXP_REG_PXP_INT_MASK_0, 0);
  4820. if (!CHIP_IS_E1x(bp))
  4821. REG_WR(bp, PXP_REG_PXP_INT_MASK_1, 0x40);
  4822. else
  4823. REG_WR(bp, PXP_REG_PXP_INT_MASK_1, 0);
  4824. REG_WR(bp, DORQ_REG_DORQ_INT_MASK, 0);
  4825. REG_WR(bp, CFC_REG_CFC_INT_MASK, 0);
  4826. /*
  4827. * mask read length error interrupts in brb for parser
  4828. * (parsing unit and 'checksum and crc' unit)
  4829. * these errors are legal (PU reads fixed length and CAC can cause
  4830. * read length error on truncated packets)
  4831. */
  4832. REG_WR(bp, BRB1_REG_BRB1_INT_MASK, 0xFC00);
  4833. REG_WR(bp, QM_REG_QM_INT_MASK, 0);
  4834. REG_WR(bp, TM_REG_TM_INT_MASK, 0);
  4835. REG_WR(bp, XSDM_REG_XSDM_INT_MASK_0, 0);
  4836. REG_WR(bp, XSDM_REG_XSDM_INT_MASK_1, 0);
  4837. REG_WR(bp, XCM_REG_XCM_INT_MASK, 0);
  4838. /* REG_WR(bp, XSEM_REG_XSEM_INT_MASK_0, 0); */
  4839. /* REG_WR(bp, XSEM_REG_XSEM_INT_MASK_1, 0); */
  4840. REG_WR(bp, USDM_REG_USDM_INT_MASK_0, 0);
  4841. REG_WR(bp, USDM_REG_USDM_INT_MASK_1, 0);
  4842. REG_WR(bp, UCM_REG_UCM_INT_MASK, 0);
  4843. /* REG_WR(bp, USEM_REG_USEM_INT_MASK_0, 0); */
  4844. /* REG_WR(bp, USEM_REG_USEM_INT_MASK_1, 0); */
  4845. REG_WR(bp, GRCBASE_UPB + PB_REG_PB_INT_MASK, 0);
  4846. REG_WR(bp, CSDM_REG_CSDM_INT_MASK_0, 0);
  4847. REG_WR(bp, CSDM_REG_CSDM_INT_MASK_1, 0);
  4848. REG_WR(bp, CCM_REG_CCM_INT_MASK, 0);
  4849. /* REG_WR(bp, CSEM_REG_CSEM_INT_MASK_0, 0); */
  4850. /* REG_WR(bp, CSEM_REG_CSEM_INT_MASK_1, 0); */
  4851. if (CHIP_REV_IS_FPGA(bp))
  4852. REG_WR(bp, PXP2_REG_PXP2_INT_MASK_0, 0x580000);
  4853. else if (!CHIP_IS_E1x(bp))
  4854. REG_WR(bp, PXP2_REG_PXP2_INT_MASK_0,
  4855. (PXP2_PXP2_INT_MASK_0_REG_PGL_CPL_OF
  4856. | PXP2_PXP2_INT_MASK_0_REG_PGL_CPL_AFT
  4857. | PXP2_PXP2_INT_MASK_0_REG_PGL_PCIE_ATTN
  4858. | PXP2_PXP2_INT_MASK_0_REG_PGL_READ_BLOCKED
  4859. | PXP2_PXP2_INT_MASK_0_REG_PGL_WRITE_BLOCKED));
  4860. else
  4861. REG_WR(bp, PXP2_REG_PXP2_INT_MASK_0, 0x480000);
  4862. REG_WR(bp, TSDM_REG_TSDM_INT_MASK_0, 0);
  4863. REG_WR(bp, TSDM_REG_TSDM_INT_MASK_1, 0);
  4864. REG_WR(bp, TCM_REG_TCM_INT_MASK, 0);
  4865. /* REG_WR(bp, TSEM_REG_TSEM_INT_MASK_0, 0); */
  4866. if (!CHIP_IS_E1x(bp))
  4867. /* enable VFC attentions: bits 11 and 12, bits 31:13 reserved */
  4868. REG_WR(bp, TSEM_REG_TSEM_INT_MASK_1, 0x07ff);
  4869. REG_WR(bp, CDU_REG_CDU_INT_MASK, 0);
  4870. REG_WR(bp, DMAE_REG_DMAE_INT_MASK, 0);
  4871. /* REG_WR(bp, MISC_REG_MISC_INT_MASK, 0); */
  4872. REG_WR(bp, PBF_REG_PBF_INT_MASK, 0x18); /* bit 3,4 masked */
  4873. }
  4874. static void bnx2x_reset_common(struct bnx2x *bp)
  4875. {
  4876. u32 val = 0x1400;
  4877. /* reset_common */
  4878. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_CLEAR,
  4879. 0xd3ffff7f);
  4880. if (CHIP_IS_E3(bp)) {
  4881. val |= MISC_REGISTERS_RESET_REG_2_MSTAT0;
  4882. val |= MISC_REGISTERS_RESET_REG_2_MSTAT1;
  4883. }
  4884. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR, val);
  4885. }
  4886. static void bnx2x_setup_dmae(struct bnx2x *bp)
  4887. {
  4888. bp->dmae_ready = 0;
  4889. spin_lock_init(&bp->dmae_lock);
  4890. }
  4891. static void bnx2x_init_pxp(struct bnx2x *bp)
  4892. {
  4893. u16 devctl;
  4894. int r_order, w_order;
  4895. pci_read_config_word(bp->pdev,
  4896. pci_pcie_cap(bp->pdev) + PCI_EXP_DEVCTL, &devctl);
  4897. DP(NETIF_MSG_HW, "read 0x%x from devctl\n", devctl);
  4898. w_order = ((devctl & PCI_EXP_DEVCTL_PAYLOAD) >> 5);
  4899. if (bp->mrrs == -1)
  4900. r_order = ((devctl & PCI_EXP_DEVCTL_READRQ) >> 12);
  4901. else {
  4902. DP(NETIF_MSG_HW, "force read order to %d\n", bp->mrrs);
  4903. r_order = bp->mrrs;
  4904. }
  4905. bnx2x_init_pxp_arb(bp, r_order, w_order);
  4906. }
  4907. static void bnx2x_setup_fan_failure_detection(struct bnx2x *bp)
  4908. {
  4909. int is_required;
  4910. u32 val;
  4911. int port;
  4912. if (BP_NOMCP(bp))
  4913. return;
  4914. is_required = 0;
  4915. val = SHMEM_RD(bp, dev_info.shared_hw_config.config2) &
  4916. SHARED_HW_CFG_FAN_FAILURE_MASK;
  4917. if (val == SHARED_HW_CFG_FAN_FAILURE_ENABLED)
  4918. is_required = 1;
  4919. /*
  4920. * The fan failure mechanism is usually related to the PHY type since
  4921. * the power consumption of the board is affected by the PHY. Currently,
  4922. * fan is required for most designs with SFX7101, BCM8727 and BCM8481.
  4923. */
  4924. else if (val == SHARED_HW_CFG_FAN_FAILURE_PHY_TYPE)
  4925. for (port = PORT_0; port < PORT_MAX; port++) {
  4926. is_required |=
  4927. bnx2x_fan_failure_det_req(
  4928. bp,
  4929. bp->common.shmem_base,
  4930. bp->common.shmem2_base,
  4931. port);
  4932. }
  4933. DP(NETIF_MSG_HW, "fan detection setting: %d\n", is_required);
  4934. if (is_required == 0)
  4935. return;
  4936. /* Fan failure is indicated by SPIO 5 */
  4937. bnx2x_set_spio(bp, MISC_REGISTERS_SPIO_5,
  4938. MISC_REGISTERS_SPIO_INPUT_HI_Z);
  4939. /* set to active low mode */
  4940. val = REG_RD(bp, MISC_REG_SPIO_INT);
  4941. val |= ((1 << MISC_REGISTERS_SPIO_5) <<
  4942. MISC_REGISTERS_SPIO_INT_OLD_SET_POS);
  4943. REG_WR(bp, MISC_REG_SPIO_INT, val);
  4944. /* enable interrupt to signal the IGU */
  4945. val = REG_RD(bp, MISC_REG_SPIO_EVENT_EN);
  4946. val |= (1 << MISC_REGISTERS_SPIO_5);
  4947. REG_WR(bp, MISC_REG_SPIO_EVENT_EN, val);
  4948. }
  4949. static void bnx2x_pretend_func(struct bnx2x *bp, u8 pretend_func_num)
  4950. {
  4951. u32 offset = 0;
  4952. if (CHIP_IS_E1(bp))
  4953. return;
  4954. if (CHIP_IS_E1H(bp) && (pretend_func_num >= E1H_FUNC_MAX))
  4955. return;
  4956. switch (BP_ABS_FUNC(bp)) {
  4957. case 0:
  4958. offset = PXP2_REG_PGL_PRETEND_FUNC_F0;
  4959. break;
  4960. case 1:
  4961. offset = PXP2_REG_PGL_PRETEND_FUNC_F1;
  4962. break;
  4963. case 2:
  4964. offset = PXP2_REG_PGL_PRETEND_FUNC_F2;
  4965. break;
  4966. case 3:
  4967. offset = PXP2_REG_PGL_PRETEND_FUNC_F3;
  4968. break;
  4969. case 4:
  4970. offset = PXP2_REG_PGL_PRETEND_FUNC_F4;
  4971. break;
  4972. case 5:
  4973. offset = PXP2_REG_PGL_PRETEND_FUNC_F5;
  4974. break;
  4975. case 6:
  4976. offset = PXP2_REG_PGL_PRETEND_FUNC_F6;
  4977. break;
  4978. case 7:
  4979. offset = PXP2_REG_PGL_PRETEND_FUNC_F7;
  4980. break;
  4981. default:
  4982. return;
  4983. }
  4984. REG_WR(bp, offset, pretend_func_num);
  4985. REG_RD(bp, offset);
  4986. DP(NETIF_MSG_HW, "Pretending to func %d\n", pretend_func_num);
  4987. }
  4988. void bnx2x_pf_disable(struct bnx2x *bp)
  4989. {
  4990. u32 val = REG_RD(bp, IGU_REG_PF_CONFIGURATION);
  4991. val &= ~IGU_PF_CONF_FUNC_EN;
  4992. REG_WR(bp, IGU_REG_PF_CONFIGURATION, val);
  4993. REG_WR(bp, PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER, 0);
  4994. REG_WR(bp, CFC_REG_WEAK_ENABLE_PF, 0);
  4995. }
  4996. static inline void bnx2x__common_init_phy(struct bnx2x *bp)
  4997. {
  4998. u32 shmem_base[2], shmem2_base[2];
  4999. shmem_base[0] = bp->common.shmem_base;
  5000. shmem2_base[0] = bp->common.shmem2_base;
  5001. if (!CHIP_IS_E1x(bp)) {
  5002. shmem_base[1] =
  5003. SHMEM2_RD(bp, other_shmem_base_addr);
  5004. shmem2_base[1] =
  5005. SHMEM2_RD(bp, other_shmem2_base_addr);
  5006. }
  5007. bnx2x_acquire_phy_lock(bp);
  5008. bnx2x_common_init_phy(bp, shmem_base, shmem2_base,
  5009. bp->common.chip_id);
  5010. bnx2x_release_phy_lock(bp);
  5011. }
  5012. /**
  5013. * bnx2x_init_hw_common - initialize the HW at the COMMON phase.
  5014. *
  5015. * @bp: driver handle
  5016. */
  5017. static int bnx2x_init_hw_common(struct bnx2x *bp)
  5018. {
  5019. u32 val;
  5020. DP(BNX2X_MSG_MCP, "starting common init func %d\n", BP_ABS_FUNC(bp));
  5021. /*
  5022. * take the UNDI lock to protect undi_unload flow from accessing
  5023. * registers while we're resetting the chip
  5024. */
  5025. bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_RESET);
  5026. bnx2x_reset_common(bp);
  5027. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_SET, 0xffffffff);
  5028. val = 0xfffc;
  5029. if (CHIP_IS_E3(bp)) {
  5030. val |= MISC_REGISTERS_RESET_REG_2_MSTAT0;
  5031. val |= MISC_REGISTERS_RESET_REG_2_MSTAT1;
  5032. }
  5033. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET, val);
  5034. bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_RESET);
  5035. bnx2x_init_block(bp, BLOCK_MISC, PHASE_COMMON);
  5036. if (!CHIP_IS_E1x(bp)) {
  5037. u8 abs_func_id;
  5038. /**
  5039. * 4-port mode or 2-port mode we need to turn of master-enable
  5040. * for everyone, after that, turn it back on for self.
  5041. * so, we disregard multi-function or not, and always disable
  5042. * for all functions on the given path, this means 0,2,4,6 for
  5043. * path 0 and 1,3,5,7 for path 1
  5044. */
  5045. for (abs_func_id = BP_PATH(bp);
  5046. abs_func_id < E2_FUNC_MAX*2; abs_func_id += 2) {
  5047. if (abs_func_id == BP_ABS_FUNC(bp)) {
  5048. REG_WR(bp,
  5049. PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER,
  5050. 1);
  5051. continue;
  5052. }
  5053. bnx2x_pretend_func(bp, abs_func_id);
  5054. /* clear pf enable */
  5055. bnx2x_pf_disable(bp);
  5056. bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
  5057. }
  5058. }
  5059. bnx2x_init_block(bp, BLOCK_PXP, PHASE_COMMON);
  5060. if (CHIP_IS_E1(bp)) {
  5061. /* enable HW interrupt from PXP on USDM overflow
  5062. bit 16 on INT_MASK_0 */
  5063. REG_WR(bp, PXP_REG_PXP_INT_MASK_0, 0);
  5064. }
  5065. bnx2x_init_block(bp, BLOCK_PXP2, PHASE_COMMON);
  5066. bnx2x_init_pxp(bp);
  5067. #ifdef __BIG_ENDIAN
  5068. REG_WR(bp, PXP2_REG_RQ_QM_ENDIAN_M, 1);
  5069. REG_WR(bp, PXP2_REG_RQ_TM_ENDIAN_M, 1);
  5070. REG_WR(bp, PXP2_REG_RQ_SRC_ENDIAN_M, 1);
  5071. REG_WR(bp, PXP2_REG_RQ_CDU_ENDIAN_M, 1);
  5072. REG_WR(bp, PXP2_REG_RQ_DBG_ENDIAN_M, 1);
  5073. /* make sure this value is 0 */
  5074. REG_WR(bp, PXP2_REG_RQ_HC_ENDIAN_M, 0);
  5075. /* REG_WR(bp, PXP2_REG_RD_PBF_SWAP_MODE, 1); */
  5076. REG_WR(bp, PXP2_REG_RD_QM_SWAP_MODE, 1);
  5077. REG_WR(bp, PXP2_REG_RD_TM_SWAP_MODE, 1);
  5078. REG_WR(bp, PXP2_REG_RD_SRC_SWAP_MODE, 1);
  5079. REG_WR(bp, PXP2_REG_RD_CDURD_SWAP_MODE, 1);
  5080. #endif
  5081. bnx2x_ilt_init_page_size(bp, INITOP_SET);
  5082. if (CHIP_REV_IS_FPGA(bp) && CHIP_IS_E1H(bp))
  5083. REG_WR(bp, PXP2_REG_PGL_TAGS_LIMIT, 0x1);
  5084. /* let the HW do it's magic ... */
  5085. msleep(100);
  5086. /* finish PXP init */
  5087. val = REG_RD(bp, PXP2_REG_RQ_CFG_DONE);
  5088. if (val != 1) {
  5089. BNX2X_ERR("PXP2 CFG failed\n");
  5090. return -EBUSY;
  5091. }
  5092. val = REG_RD(bp, PXP2_REG_RD_INIT_DONE);
  5093. if (val != 1) {
  5094. BNX2X_ERR("PXP2 RD_INIT failed\n");
  5095. return -EBUSY;
  5096. }
  5097. /* Timers bug workaround E2 only. We need to set the entire ILT to
  5098. * have entries with value "0" and valid bit on.
  5099. * This needs to be done by the first PF that is loaded in a path
  5100. * (i.e. common phase)
  5101. */
  5102. if (!CHIP_IS_E1x(bp)) {
  5103. /* In E2 there is a bug in the timers block that can cause function 6 / 7
  5104. * (i.e. vnic3) to start even if it is marked as "scan-off".
  5105. * This occurs when a different function (func2,3) is being marked
  5106. * as "scan-off". Real-life scenario for example: if a driver is being
  5107. * load-unloaded while func6,7 are down. This will cause the timer to access
  5108. * the ilt, translate to a logical address and send a request to read/write.
  5109. * Since the ilt for the function that is down is not valid, this will cause
  5110. * a translation error which is unrecoverable.
  5111. * The Workaround is intended to make sure that when this happens nothing fatal
  5112. * will occur. The workaround:
  5113. * 1. First PF driver which loads on a path will:
  5114. * a. After taking the chip out of reset, by using pretend,
  5115. * it will write "0" to the following registers of
  5116. * the other vnics.
  5117. * REG_WR(pdev, PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER, 0);
  5118. * REG_WR(pdev, CFC_REG_WEAK_ENABLE_PF,0);
  5119. * REG_WR(pdev, CFC_REG_STRONG_ENABLE_PF,0);
  5120. * And for itself it will write '1' to
  5121. * PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER to enable
  5122. * dmae-operations (writing to pram for example.)
  5123. * note: can be done for only function 6,7 but cleaner this
  5124. * way.
  5125. * b. Write zero+valid to the entire ILT.
  5126. * c. Init the first_timers_ilt_entry, last_timers_ilt_entry of
  5127. * VNIC3 (of that port). The range allocated will be the
  5128. * entire ILT. This is needed to prevent ILT range error.
  5129. * 2. Any PF driver load flow:
  5130. * a. ILT update with the physical addresses of the allocated
  5131. * logical pages.
  5132. * b. Wait 20msec. - note that this timeout is needed to make
  5133. * sure there are no requests in one of the PXP internal
  5134. * queues with "old" ILT addresses.
  5135. * c. PF enable in the PGLC.
  5136. * d. Clear the was_error of the PF in the PGLC. (could have
  5137. * occured while driver was down)
  5138. * e. PF enable in the CFC (WEAK + STRONG)
  5139. * f. Timers scan enable
  5140. * 3. PF driver unload flow:
  5141. * a. Clear the Timers scan_en.
  5142. * b. Polling for scan_on=0 for that PF.
  5143. * c. Clear the PF enable bit in the PXP.
  5144. * d. Clear the PF enable in the CFC (WEAK + STRONG)
  5145. * e. Write zero+valid to all ILT entries (The valid bit must
  5146. * stay set)
  5147. * f. If this is VNIC 3 of a port then also init
  5148. * first_timers_ilt_entry to zero and last_timers_ilt_entry
  5149. * to the last enrty in the ILT.
  5150. *
  5151. * Notes:
  5152. * Currently the PF error in the PGLC is non recoverable.
  5153. * In the future the there will be a recovery routine for this error.
  5154. * Currently attention is masked.
  5155. * Having an MCP lock on the load/unload process does not guarantee that
  5156. * there is no Timer disable during Func6/7 enable. This is because the
  5157. * Timers scan is currently being cleared by the MCP on FLR.
  5158. * Step 2.d can be done only for PF6/7 and the driver can also check if
  5159. * there is error before clearing it. But the flow above is simpler and
  5160. * more general.
  5161. * All ILT entries are written by zero+valid and not just PF6/7
  5162. * ILT entries since in the future the ILT entries allocation for
  5163. * PF-s might be dynamic.
  5164. */
  5165. struct ilt_client_info ilt_cli;
  5166. struct bnx2x_ilt ilt;
  5167. memset(&ilt_cli, 0, sizeof(struct ilt_client_info));
  5168. memset(&ilt, 0, sizeof(struct bnx2x_ilt));
  5169. /* initialize dummy TM client */
  5170. ilt_cli.start = 0;
  5171. ilt_cli.end = ILT_NUM_PAGE_ENTRIES - 1;
  5172. ilt_cli.client_num = ILT_CLIENT_TM;
  5173. /* Step 1: set zeroes to all ilt page entries with valid bit on
  5174. * Step 2: set the timers first/last ilt entry to point
  5175. * to the entire range to prevent ILT range error for 3rd/4th
  5176. * vnic (this code assumes existance of the vnic)
  5177. *
  5178. * both steps performed by call to bnx2x_ilt_client_init_op()
  5179. * with dummy TM client
  5180. *
  5181. * we must use pretend since PXP2_REG_RQ_##blk##_FIRST_ILT
  5182. * and his brother are split registers
  5183. */
  5184. bnx2x_pretend_func(bp, (BP_PATH(bp) + 6));
  5185. bnx2x_ilt_client_init_op_ilt(bp, &ilt, &ilt_cli, INITOP_CLEAR);
  5186. bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
  5187. REG_WR(bp, PXP2_REG_RQ_DRAM_ALIGN, BNX2X_PXP_DRAM_ALIGN);
  5188. REG_WR(bp, PXP2_REG_RQ_DRAM_ALIGN_RD, BNX2X_PXP_DRAM_ALIGN);
  5189. REG_WR(bp, PXP2_REG_RQ_DRAM_ALIGN_SEL, 1);
  5190. }
  5191. REG_WR(bp, PXP2_REG_RQ_DISABLE_INPUTS, 0);
  5192. REG_WR(bp, PXP2_REG_RD_DISABLE_INPUTS, 0);
  5193. if (!CHIP_IS_E1x(bp)) {
  5194. int factor = CHIP_REV_IS_EMUL(bp) ? 1000 :
  5195. (CHIP_REV_IS_FPGA(bp) ? 400 : 0);
  5196. bnx2x_init_block(bp, BLOCK_PGLUE_B, PHASE_COMMON);
  5197. bnx2x_init_block(bp, BLOCK_ATC, PHASE_COMMON);
  5198. /* let the HW do it's magic ... */
  5199. do {
  5200. msleep(200);
  5201. val = REG_RD(bp, ATC_REG_ATC_INIT_DONE);
  5202. } while (factor-- && (val != 1));
  5203. if (val != 1) {
  5204. BNX2X_ERR("ATC_INIT failed\n");
  5205. return -EBUSY;
  5206. }
  5207. }
  5208. bnx2x_init_block(bp, BLOCK_DMAE, PHASE_COMMON);
  5209. /* clean the DMAE memory */
  5210. bp->dmae_ready = 1;
  5211. bnx2x_init_fill(bp, TSEM_REG_PRAM, 0, 8, 1);
  5212. bnx2x_init_block(bp, BLOCK_TCM, PHASE_COMMON);
  5213. bnx2x_init_block(bp, BLOCK_UCM, PHASE_COMMON);
  5214. bnx2x_init_block(bp, BLOCK_CCM, PHASE_COMMON);
  5215. bnx2x_init_block(bp, BLOCK_XCM, PHASE_COMMON);
  5216. bnx2x_read_dmae(bp, XSEM_REG_PASSIVE_BUFFER, 3);
  5217. bnx2x_read_dmae(bp, CSEM_REG_PASSIVE_BUFFER, 3);
  5218. bnx2x_read_dmae(bp, TSEM_REG_PASSIVE_BUFFER, 3);
  5219. bnx2x_read_dmae(bp, USEM_REG_PASSIVE_BUFFER, 3);
  5220. bnx2x_init_block(bp, BLOCK_QM, PHASE_COMMON);
  5221. /* QM queues pointers table */
  5222. bnx2x_qm_init_ptr_table(bp, bp->qm_cid_count, INITOP_SET);
  5223. /* soft reset pulse */
  5224. REG_WR(bp, QM_REG_SOFT_RESET, 1);
  5225. REG_WR(bp, QM_REG_SOFT_RESET, 0);
  5226. #ifdef BCM_CNIC
  5227. bnx2x_init_block(bp, BLOCK_TM, PHASE_COMMON);
  5228. #endif
  5229. bnx2x_init_block(bp, BLOCK_DORQ, PHASE_COMMON);
  5230. REG_WR(bp, DORQ_REG_DPM_CID_OFST, BNX2X_DB_SHIFT);
  5231. if (!CHIP_REV_IS_SLOW(bp))
  5232. /* enable hw interrupt from doorbell Q */
  5233. REG_WR(bp, DORQ_REG_DORQ_INT_MASK, 0);
  5234. bnx2x_init_block(bp, BLOCK_BRB1, PHASE_COMMON);
  5235. bnx2x_init_block(bp, BLOCK_PRS, PHASE_COMMON);
  5236. REG_WR(bp, PRS_REG_A_PRSU_20, 0xf);
  5237. if (!CHIP_IS_E1(bp))
  5238. REG_WR(bp, PRS_REG_E1HOV_MODE, bp->path_has_ovlan);
  5239. if (!CHIP_IS_E1x(bp) && !CHIP_IS_E3B0(bp))
  5240. /* Bit-map indicating which L2 hdrs may appear
  5241. * after the basic Ethernet header
  5242. */
  5243. REG_WR(bp, PRS_REG_HDRS_AFTER_BASIC,
  5244. bp->path_has_ovlan ? 7 : 6);
  5245. bnx2x_init_block(bp, BLOCK_TSDM, PHASE_COMMON);
  5246. bnx2x_init_block(bp, BLOCK_CSDM, PHASE_COMMON);
  5247. bnx2x_init_block(bp, BLOCK_USDM, PHASE_COMMON);
  5248. bnx2x_init_block(bp, BLOCK_XSDM, PHASE_COMMON);
  5249. if (!CHIP_IS_E1x(bp)) {
  5250. /* reset VFC memories */
  5251. REG_WR(bp, TSEM_REG_FAST_MEMORY + VFC_REG_MEMORIES_RST,
  5252. VFC_MEMORIES_RST_REG_CAM_RST |
  5253. VFC_MEMORIES_RST_REG_RAM_RST);
  5254. REG_WR(bp, XSEM_REG_FAST_MEMORY + VFC_REG_MEMORIES_RST,
  5255. VFC_MEMORIES_RST_REG_CAM_RST |
  5256. VFC_MEMORIES_RST_REG_RAM_RST);
  5257. msleep(20);
  5258. }
  5259. bnx2x_init_block(bp, BLOCK_TSEM, PHASE_COMMON);
  5260. bnx2x_init_block(bp, BLOCK_USEM, PHASE_COMMON);
  5261. bnx2x_init_block(bp, BLOCK_CSEM, PHASE_COMMON);
  5262. bnx2x_init_block(bp, BLOCK_XSEM, PHASE_COMMON);
  5263. /* sync semi rtc */
  5264. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_CLEAR,
  5265. 0x80000000);
  5266. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_SET,
  5267. 0x80000000);
  5268. bnx2x_init_block(bp, BLOCK_UPB, PHASE_COMMON);
  5269. bnx2x_init_block(bp, BLOCK_XPB, PHASE_COMMON);
  5270. bnx2x_init_block(bp, BLOCK_PBF, PHASE_COMMON);
  5271. if (!CHIP_IS_E1x(bp))
  5272. REG_WR(bp, PBF_REG_HDRS_AFTER_BASIC,
  5273. bp->path_has_ovlan ? 7 : 6);
  5274. REG_WR(bp, SRC_REG_SOFT_RST, 1);
  5275. bnx2x_init_block(bp, BLOCK_SRC, PHASE_COMMON);
  5276. #ifdef BCM_CNIC
  5277. REG_WR(bp, SRC_REG_KEYSEARCH_0, 0x63285672);
  5278. REG_WR(bp, SRC_REG_KEYSEARCH_1, 0x24b8f2cc);
  5279. REG_WR(bp, SRC_REG_KEYSEARCH_2, 0x223aef9b);
  5280. REG_WR(bp, SRC_REG_KEYSEARCH_3, 0x26001e3a);
  5281. REG_WR(bp, SRC_REG_KEYSEARCH_4, 0x7ae91116);
  5282. REG_WR(bp, SRC_REG_KEYSEARCH_5, 0x5ce5230b);
  5283. REG_WR(bp, SRC_REG_KEYSEARCH_6, 0x298d8adf);
  5284. REG_WR(bp, SRC_REG_KEYSEARCH_7, 0x6eb0ff09);
  5285. REG_WR(bp, SRC_REG_KEYSEARCH_8, 0x1830f82f);
  5286. REG_WR(bp, SRC_REG_KEYSEARCH_9, 0x01e46be7);
  5287. #endif
  5288. REG_WR(bp, SRC_REG_SOFT_RST, 0);
  5289. if (sizeof(union cdu_context) != 1024)
  5290. /* we currently assume that a context is 1024 bytes */
  5291. dev_alert(&bp->pdev->dev, "please adjust the size "
  5292. "of cdu_context(%ld)\n",
  5293. (long)sizeof(union cdu_context));
  5294. bnx2x_init_block(bp, BLOCK_CDU, PHASE_COMMON);
  5295. val = (4 << 24) + (0 << 12) + 1024;
  5296. REG_WR(bp, CDU_REG_CDU_GLOBAL_PARAMS, val);
  5297. bnx2x_init_block(bp, BLOCK_CFC, PHASE_COMMON);
  5298. REG_WR(bp, CFC_REG_INIT_REG, 0x7FF);
  5299. /* enable context validation interrupt from CFC */
  5300. REG_WR(bp, CFC_REG_CFC_INT_MASK, 0);
  5301. /* set the thresholds to prevent CFC/CDU race */
  5302. REG_WR(bp, CFC_REG_DEBUG0, 0x20020000);
  5303. bnx2x_init_block(bp, BLOCK_HC, PHASE_COMMON);
  5304. if (!CHIP_IS_E1x(bp) && BP_NOMCP(bp))
  5305. REG_WR(bp, IGU_REG_RESET_MEMORIES, 0x36);
  5306. bnx2x_init_block(bp, BLOCK_IGU, PHASE_COMMON);
  5307. bnx2x_init_block(bp, BLOCK_MISC_AEU, PHASE_COMMON);
  5308. /* Reset PCIE errors for debug */
  5309. REG_WR(bp, 0x2814, 0xffffffff);
  5310. REG_WR(bp, 0x3820, 0xffffffff);
  5311. if (!CHIP_IS_E1x(bp)) {
  5312. REG_WR(bp, PCICFG_OFFSET + PXPCS_TL_CONTROL_5,
  5313. (PXPCS_TL_CONTROL_5_ERR_UNSPPORT1 |
  5314. PXPCS_TL_CONTROL_5_ERR_UNSPPORT));
  5315. REG_WR(bp, PCICFG_OFFSET + PXPCS_TL_FUNC345_STAT,
  5316. (PXPCS_TL_FUNC345_STAT_ERR_UNSPPORT4 |
  5317. PXPCS_TL_FUNC345_STAT_ERR_UNSPPORT3 |
  5318. PXPCS_TL_FUNC345_STAT_ERR_UNSPPORT2));
  5319. REG_WR(bp, PCICFG_OFFSET + PXPCS_TL_FUNC678_STAT,
  5320. (PXPCS_TL_FUNC678_STAT_ERR_UNSPPORT7 |
  5321. PXPCS_TL_FUNC678_STAT_ERR_UNSPPORT6 |
  5322. PXPCS_TL_FUNC678_STAT_ERR_UNSPPORT5));
  5323. }
  5324. bnx2x_init_block(bp, BLOCK_NIG, PHASE_COMMON);
  5325. if (!CHIP_IS_E1(bp)) {
  5326. /* in E3 this done in per-port section */
  5327. if (!CHIP_IS_E3(bp))
  5328. REG_WR(bp, NIG_REG_LLH_MF_MODE, IS_MF(bp));
  5329. }
  5330. if (CHIP_IS_E1H(bp))
  5331. /* not applicable for E2 (and above ...) */
  5332. REG_WR(bp, NIG_REG_LLH_E1HOV_MODE, IS_MF_SD(bp));
  5333. if (CHIP_REV_IS_SLOW(bp))
  5334. msleep(200);
  5335. /* finish CFC init */
  5336. val = reg_poll(bp, CFC_REG_LL_INIT_DONE, 1, 100, 10);
  5337. if (val != 1) {
  5338. BNX2X_ERR("CFC LL_INIT failed\n");
  5339. return -EBUSY;
  5340. }
  5341. val = reg_poll(bp, CFC_REG_AC_INIT_DONE, 1, 100, 10);
  5342. if (val != 1) {
  5343. BNX2X_ERR("CFC AC_INIT failed\n");
  5344. return -EBUSY;
  5345. }
  5346. val = reg_poll(bp, CFC_REG_CAM_INIT_DONE, 1, 100, 10);
  5347. if (val != 1) {
  5348. BNX2X_ERR("CFC CAM_INIT failed\n");
  5349. return -EBUSY;
  5350. }
  5351. REG_WR(bp, CFC_REG_DEBUG0, 0);
  5352. if (CHIP_IS_E1(bp)) {
  5353. /* read NIG statistic
  5354. to see if this is our first up since powerup */
  5355. bnx2x_read_dmae(bp, NIG_REG_STAT2_BRB_OCTET, 2);
  5356. val = *bnx2x_sp(bp, wb_data[0]);
  5357. /* do internal memory self test */
  5358. if ((val == 0) && bnx2x_int_mem_test(bp)) {
  5359. BNX2X_ERR("internal mem self test failed\n");
  5360. return -EBUSY;
  5361. }
  5362. }
  5363. bnx2x_setup_fan_failure_detection(bp);
  5364. /* clear PXP2 attentions */
  5365. REG_RD(bp, PXP2_REG_PXP2_INT_STS_CLR_0);
  5366. bnx2x_enable_blocks_attention(bp);
  5367. bnx2x_enable_blocks_parity(bp);
  5368. if (!BP_NOMCP(bp)) {
  5369. if (CHIP_IS_E1x(bp))
  5370. bnx2x__common_init_phy(bp);
  5371. } else
  5372. BNX2X_ERR("Bootcode is missing - can not initialize link\n");
  5373. return 0;
  5374. }
  5375. /**
  5376. * bnx2x_init_hw_common_chip - init HW at the COMMON_CHIP phase.
  5377. *
  5378. * @bp: driver handle
  5379. */
  5380. static int bnx2x_init_hw_common_chip(struct bnx2x *bp)
  5381. {
  5382. int rc = bnx2x_init_hw_common(bp);
  5383. if (rc)
  5384. return rc;
  5385. /* In E2 2-PORT mode, same ext phy is used for the two paths */
  5386. if (!BP_NOMCP(bp))
  5387. bnx2x__common_init_phy(bp);
  5388. return 0;
  5389. }
  5390. static int bnx2x_init_hw_port(struct bnx2x *bp)
  5391. {
  5392. int port = BP_PORT(bp);
  5393. int init_phase = port ? PHASE_PORT1 : PHASE_PORT0;
  5394. u32 low, high;
  5395. u32 val;
  5396. bnx2x__link_reset(bp);
  5397. DP(BNX2X_MSG_MCP, "starting port init port %d\n", port);
  5398. REG_WR(bp, NIG_REG_MASK_INTERRUPT_PORT0 + port*4, 0);
  5399. bnx2x_init_block(bp, BLOCK_MISC, init_phase);
  5400. bnx2x_init_block(bp, BLOCK_PXP, init_phase);
  5401. bnx2x_init_block(bp, BLOCK_PXP2, init_phase);
  5402. /* Timers bug workaround: disables the pf_master bit in pglue at
  5403. * common phase, we need to enable it here before any dmae access are
  5404. * attempted. Therefore we manually added the enable-master to the
  5405. * port phase (it also happens in the function phase)
  5406. */
  5407. if (!CHIP_IS_E1x(bp))
  5408. REG_WR(bp, PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER, 1);
  5409. bnx2x_init_block(bp, BLOCK_ATC, init_phase);
  5410. bnx2x_init_block(bp, BLOCK_DMAE, init_phase);
  5411. bnx2x_init_block(bp, BLOCK_PGLUE_B, init_phase);
  5412. bnx2x_init_block(bp, BLOCK_QM, init_phase);
  5413. bnx2x_init_block(bp, BLOCK_TCM, init_phase);
  5414. bnx2x_init_block(bp, BLOCK_UCM, init_phase);
  5415. bnx2x_init_block(bp, BLOCK_CCM, init_phase);
  5416. bnx2x_init_block(bp, BLOCK_XCM, init_phase);
  5417. /* QM cid (connection) count */
  5418. bnx2x_qm_init_cid_count(bp, bp->qm_cid_count, INITOP_SET);
  5419. #ifdef BCM_CNIC
  5420. bnx2x_init_block(bp, BLOCK_TM, init_phase);
  5421. REG_WR(bp, TM_REG_LIN0_SCAN_TIME + port*4, 20);
  5422. REG_WR(bp, TM_REG_LIN0_MAX_ACTIVE_CID + port*4, 31);
  5423. #endif
  5424. bnx2x_init_block(bp, BLOCK_DORQ, init_phase);
  5425. if (CHIP_IS_E1(bp) || CHIP_IS_E1H(bp)) {
  5426. bnx2x_init_block(bp, BLOCK_BRB1, init_phase);
  5427. if (IS_MF(bp))
  5428. low = ((bp->flags & ONE_PORT_FLAG) ? 160 : 246);
  5429. else if (bp->dev->mtu > 4096) {
  5430. if (bp->flags & ONE_PORT_FLAG)
  5431. low = 160;
  5432. else {
  5433. val = bp->dev->mtu;
  5434. /* (24*1024 + val*4)/256 */
  5435. low = 96 + (val/64) +
  5436. ((val % 64) ? 1 : 0);
  5437. }
  5438. } else
  5439. low = ((bp->flags & ONE_PORT_FLAG) ? 80 : 160);
  5440. high = low + 56; /* 14*1024/256 */
  5441. REG_WR(bp, BRB1_REG_PAUSE_LOW_THRESHOLD_0 + port*4, low);
  5442. REG_WR(bp, BRB1_REG_PAUSE_HIGH_THRESHOLD_0 + port*4, high);
  5443. }
  5444. if (CHIP_MODE_IS_4_PORT(bp))
  5445. REG_WR(bp, (BP_PORT(bp) ?
  5446. BRB1_REG_MAC_GUARANTIED_1 :
  5447. BRB1_REG_MAC_GUARANTIED_0), 40);
  5448. bnx2x_init_block(bp, BLOCK_PRS, init_phase);
  5449. if (CHIP_IS_E3B0(bp))
  5450. /* Ovlan exists only if we are in multi-function +
  5451. * switch-dependent mode, in switch-independent there
  5452. * is no ovlan headers
  5453. */
  5454. REG_WR(bp, BP_PORT(bp) ?
  5455. PRS_REG_HDRS_AFTER_BASIC_PORT_1 :
  5456. PRS_REG_HDRS_AFTER_BASIC_PORT_0,
  5457. (bp->path_has_ovlan ? 7 : 6));
  5458. bnx2x_init_block(bp, BLOCK_TSDM, init_phase);
  5459. bnx2x_init_block(bp, BLOCK_CSDM, init_phase);
  5460. bnx2x_init_block(bp, BLOCK_USDM, init_phase);
  5461. bnx2x_init_block(bp, BLOCK_XSDM, init_phase);
  5462. bnx2x_init_block(bp, BLOCK_TSEM, init_phase);
  5463. bnx2x_init_block(bp, BLOCK_USEM, init_phase);
  5464. bnx2x_init_block(bp, BLOCK_CSEM, init_phase);
  5465. bnx2x_init_block(bp, BLOCK_XSEM, init_phase);
  5466. bnx2x_init_block(bp, BLOCK_UPB, init_phase);
  5467. bnx2x_init_block(bp, BLOCK_XPB, init_phase);
  5468. bnx2x_init_block(bp, BLOCK_PBF, init_phase);
  5469. if (CHIP_IS_E1x(bp)) {
  5470. /* configure PBF to work without PAUSE mtu 9000 */
  5471. REG_WR(bp, PBF_REG_P0_PAUSE_ENABLE + port*4, 0);
  5472. /* update threshold */
  5473. REG_WR(bp, PBF_REG_P0_ARB_THRSH + port*4, (9040/16));
  5474. /* update init credit */
  5475. REG_WR(bp, PBF_REG_P0_INIT_CRD + port*4, (9040/16) + 553 - 22);
  5476. /* probe changes */
  5477. REG_WR(bp, PBF_REG_INIT_P0 + port*4, 1);
  5478. udelay(50);
  5479. REG_WR(bp, PBF_REG_INIT_P0 + port*4, 0);
  5480. }
  5481. #ifdef BCM_CNIC
  5482. bnx2x_init_block(bp, BLOCK_SRC, init_phase);
  5483. #endif
  5484. bnx2x_init_block(bp, BLOCK_CDU, init_phase);
  5485. bnx2x_init_block(bp, BLOCK_CFC, init_phase);
  5486. if (CHIP_IS_E1(bp)) {
  5487. REG_WR(bp, HC_REG_LEADING_EDGE_0 + port*8, 0);
  5488. REG_WR(bp, HC_REG_TRAILING_EDGE_0 + port*8, 0);
  5489. }
  5490. bnx2x_init_block(bp, BLOCK_HC, init_phase);
  5491. bnx2x_init_block(bp, BLOCK_IGU, init_phase);
  5492. bnx2x_init_block(bp, BLOCK_MISC_AEU, init_phase);
  5493. /* init aeu_mask_attn_func_0/1:
  5494. * - SF mode: bits 3-7 are masked. only bits 0-2 are in use
  5495. * - MF mode: bit 3 is masked. bits 0-2 are in use as in SF
  5496. * bits 4-7 are used for "per vn group attention" */
  5497. val = IS_MF(bp) ? 0xF7 : 0x7;
  5498. /* Enable DCBX attention for all but E1 */
  5499. val |= CHIP_IS_E1(bp) ? 0 : 0x10;
  5500. REG_WR(bp, MISC_REG_AEU_MASK_ATTN_FUNC_0 + port*4, val);
  5501. bnx2x_init_block(bp, BLOCK_NIG, init_phase);
  5502. if (!CHIP_IS_E1x(bp)) {
  5503. /* Bit-map indicating which L2 hdrs may appear after the
  5504. * basic Ethernet header
  5505. */
  5506. REG_WR(bp, BP_PORT(bp) ?
  5507. NIG_REG_P1_HDRS_AFTER_BASIC :
  5508. NIG_REG_P0_HDRS_AFTER_BASIC,
  5509. IS_MF_SD(bp) ? 7 : 6);
  5510. if (CHIP_IS_E3(bp))
  5511. REG_WR(bp, BP_PORT(bp) ?
  5512. NIG_REG_LLH1_MF_MODE :
  5513. NIG_REG_LLH_MF_MODE, IS_MF(bp));
  5514. }
  5515. if (!CHIP_IS_E3(bp))
  5516. REG_WR(bp, NIG_REG_XGXS_SERDES0_MODE_SEL + port*4, 1);
  5517. if (!CHIP_IS_E1(bp)) {
  5518. /* 0x2 disable mf_ov, 0x1 enable */
  5519. REG_WR(bp, NIG_REG_LLH0_BRB1_DRV_MASK_MF + port*4,
  5520. (IS_MF_SD(bp) ? 0x1 : 0x2));
  5521. if (!CHIP_IS_E1x(bp)) {
  5522. val = 0;
  5523. switch (bp->mf_mode) {
  5524. case MULTI_FUNCTION_SD:
  5525. val = 1;
  5526. break;
  5527. case MULTI_FUNCTION_SI:
  5528. val = 2;
  5529. break;
  5530. }
  5531. REG_WR(bp, (BP_PORT(bp) ? NIG_REG_LLH1_CLS_TYPE :
  5532. NIG_REG_LLH0_CLS_TYPE), val);
  5533. }
  5534. {
  5535. REG_WR(bp, NIG_REG_LLFC_ENABLE_0 + port*4, 0);
  5536. REG_WR(bp, NIG_REG_LLFC_OUT_EN_0 + port*4, 0);
  5537. REG_WR(bp, NIG_REG_PAUSE_ENABLE_0 + port*4, 1);
  5538. }
  5539. }
  5540. /* If SPIO5 is set to generate interrupts, enable it for this port */
  5541. val = REG_RD(bp, MISC_REG_SPIO_EVENT_EN);
  5542. if (val & (1 << MISC_REGISTERS_SPIO_5)) {
  5543. u32 reg_addr = (port ? MISC_REG_AEU_ENABLE1_FUNC_1_OUT_0 :
  5544. MISC_REG_AEU_ENABLE1_FUNC_0_OUT_0);
  5545. val = REG_RD(bp, reg_addr);
  5546. val |= AEU_INPUTS_ATTN_BITS_SPIO5;
  5547. REG_WR(bp, reg_addr, val);
  5548. }
  5549. return 0;
  5550. }
  5551. static void bnx2x_ilt_wr(struct bnx2x *bp, u32 index, dma_addr_t addr)
  5552. {
  5553. int reg;
  5554. if (CHIP_IS_E1(bp))
  5555. reg = PXP2_REG_RQ_ONCHIP_AT + index*8;
  5556. else
  5557. reg = PXP2_REG_RQ_ONCHIP_AT_B0 + index*8;
  5558. bnx2x_wb_wr(bp, reg, ONCHIP_ADDR1(addr), ONCHIP_ADDR2(addr));
  5559. }
  5560. static inline void bnx2x_igu_clear_sb(struct bnx2x *bp, u8 idu_sb_id)
  5561. {
  5562. bnx2x_igu_clear_sb_gen(bp, BP_FUNC(bp), idu_sb_id, true /*PF*/);
  5563. }
  5564. static inline void bnx2x_clear_func_ilt(struct bnx2x *bp, u32 func)
  5565. {
  5566. u32 i, base = FUNC_ILT_BASE(func);
  5567. for (i = base; i < base + ILT_PER_FUNC; i++)
  5568. bnx2x_ilt_wr(bp, i, 0);
  5569. }
  5570. static int bnx2x_init_hw_func(struct bnx2x *bp)
  5571. {
  5572. int port = BP_PORT(bp);
  5573. int func = BP_FUNC(bp);
  5574. int init_phase = PHASE_PF0 + func;
  5575. struct bnx2x_ilt *ilt = BP_ILT(bp);
  5576. u16 cdu_ilt_start;
  5577. u32 addr, val;
  5578. u32 main_mem_base, main_mem_size, main_mem_prty_clr;
  5579. int i, main_mem_width;
  5580. DP(BNX2X_MSG_MCP, "starting func init func %d\n", func);
  5581. /* FLR cleanup - hmmm */
  5582. if (!CHIP_IS_E1x(bp))
  5583. bnx2x_pf_flr_clnup(bp);
  5584. /* set MSI reconfigure capability */
  5585. if (bp->common.int_block == INT_BLOCK_HC) {
  5586. addr = (port ? HC_REG_CONFIG_1 : HC_REG_CONFIG_0);
  5587. val = REG_RD(bp, addr);
  5588. val |= HC_CONFIG_0_REG_MSI_ATTN_EN_0;
  5589. REG_WR(bp, addr, val);
  5590. }
  5591. bnx2x_init_block(bp, BLOCK_PXP, init_phase);
  5592. bnx2x_init_block(bp, BLOCK_PXP2, init_phase);
  5593. ilt = BP_ILT(bp);
  5594. cdu_ilt_start = ilt->clients[ILT_CLIENT_CDU].start;
  5595. for (i = 0; i < L2_ILT_LINES(bp); i++) {
  5596. ilt->lines[cdu_ilt_start + i].page =
  5597. bp->context.vcxt + (ILT_PAGE_CIDS * i);
  5598. ilt->lines[cdu_ilt_start + i].page_mapping =
  5599. bp->context.cxt_mapping + (CDU_ILT_PAGE_SZ * i);
  5600. /* cdu ilt pages are allocated manually so there's no need to
  5601. set the size */
  5602. }
  5603. bnx2x_ilt_init_op(bp, INITOP_SET);
  5604. #ifdef BCM_CNIC
  5605. bnx2x_src_init_t2(bp, bp->t2, bp->t2_mapping, SRC_CONN_NUM);
  5606. /* T1 hash bits value determines the T1 number of entries */
  5607. REG_WR(bp, SRC_REG_NUMBER_HASH_BITS0 + port*4, SRC_HASH_BITS);
  5608. #endif
  5609. #ifndef BCM_CNIC
  5610. /* set NIC mode */
  5611. REG_WR(bp, PRS_REG_NIC_MODE, 1);
  5612. #endif /* BCM_CNIC */
  5613. if (!CHIP_IS_E1x(bp)) {
  5614. u32 pf_conf = IGU_PF_CONF_FUNC_EN;
  5615. /* Turn on a single ISR mode in IGU if driver is going to use
  5616. * INT#x or MSI
  5617. */
  5618. if (!(bp->flags & USING_MSIX_FLAG))
  5619. pf_conf |= IGU_PF_CONF_SINGLE_ISR_EN;
  5620. /*
  5621. * Timers workaround bug: function init part.
  5622. * Need to wait 20msec after initializing ILT,
  5623. * needed to make sure there are no requests in
  5624. * one of the PXP internal queues with "old" ILT addresses
  5625. */
  5626. msleep(20);
  5627. /*
  5628. * Master enable - Due to WB DMAE writes performed before this
  5629. * register is re-initialized as part of the regular function
  5630. * init
  5631. */
  5632. REG_WR(bp, PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER, 1);
  5633. /* Enable the function in IGU */
  5634. REG_WR(bp, IGU_REG_PF_CONFIGURATION, pf_conf);
  5635. }
  5636. bp->dmae_ready = 1;
  5637. bnx2x_init_block(bp, BLOCK_PGLUE_B, init_phase);
  5638. if (!CHIP_IS_E1x(bp))
  5639. REG_WR(bp, PGLUE_B_REG_WAS_ERROR_PF_7_0_CLR, func);
  5640. bnx2x_init_block(bp, BLOCK_ATC, init_phase);
  5641. bnx2x_init_block(bp, BLOCK_DMAE, init_phase);
  5642. bnx2x_init_block(bp, BLOCK_NIG, init_phase);
  5643. bnx2x_init_block(bp, BLOCK_SRC, init_phase);
  5644. bnx2x_init_block(bp, BLOCK_MISC, init_phase);
  5645. bnx2x_init_block(bp, BLOCK_TCM, init_phase);
  5646. bnx2x_init_block(bp, BLOCK_UCM, init_phase);
  5647. bnx2x_init_block(bp, BLOCK_CCM, init_phase);
  5648. bnx2x_init_block(bp, BLOCK_XCM, init_phase);
  5649. bnx2x_init_block(bp, BLOCK_TSEM, init_phase);
  5650. bnx2x_init_block(bp, BLOCK_USEM, init_phase);
  5651. bnx2x_init_block(bp, BLOCK_CSEM, init_phase);
  5652. bnx2x_init_block(bp, BLOCK_XSEM, init_phase);
  5653. if (!CHIP_IS_E1x(bp))
  5654. REG_WR(bp, QM_REG_PF_EN, 1);
  5655. if (!CHIP_IS_E1x(bp)) {
  5656. REG_WR(bp, TSEM_REG_VFPF_ERR_NUM, BNX2X_MAX_NUM_OF_VFS + func);
  5657. REG_WR(bp, USEM_REG_VFPF_ERR_NUM, BNX2X_MAX_NUM_OF_VFS + func);
  5658. REG_WR(bp, CSEM_REG_VFPF_ERR_NUM, BNX2X_MAX_NUM_OF_VFS + func);
  5659. REG_WR(bp, XSEM_REG_VFPF_ERR_NUM, BNX2X_MAX_NUM_OF_VFS + func);
  5660. }
  5661. bnx2x_init_block(bp, BLOCK_QM, init_phase);
  5662. bnx2x_init_block(bp, BLOCK_TM, init_phase);
  5663. bnx2x_init_block(bp, BLOCK_DORQ, init_phase);
  5664. bnx2x_init_block(bp, BLOCK_BRB1, init_phase);
  5665. bnx2x_init_block(bp, BLOCK_PRS, init_phase);
  5666. bnx2x_init_block(bp, BLOCK_TSDM, init_phase);
  5667. bnx2x_init_block(bp, BLOCK_CSDM, init_phase);
  5668. bnx2x_init_block(bp, BLOCK_USDM, init_phase);
  5669. bnx2x_init_block(bp, BLOCK_XSDM, init_phase);
  5670. bnx2x_init_block(bp, BLOCK_UPB, init_phase);
  5671. bnx2x_init_block(bp, BLOCK_XPB, init_phase);
  5672. bnx2x_init_block(bp, BLOCK_PBF, init_phase);
  5673. if (!CHIP_IS_E1x(bp))
  5674. REG_WR(bp, PBF_REG_DISABLE_PF, 0);
  5675. bnx2x_init_block(bp, BLOCK_CDU, init_phase);
  5676. bnx2x_init_block(bp, BLOCK_CFC, init_phase);
  5677. if (!CHIP_IS_E1x(bp))
  5678. REG_WR(bp, CFC_REG_WEAK_ENABLE_PF, 1);
  5679. if (IS_MF(bp)) {
  5680. REG_WR(bp, NIG_REG_LLH0_FUNC_EN + port*8, 1);
  5681. REG_WR(bp, NIG_REG_LLH0_FUNC_VLAN_ID + port*8, bp->mf_ov);
  5682. }
  5683. bnx2x_init_block(bp, BLOCK_MISC_AEU, init_phase);
  5684. /* HC init per function */
  5685. if (bp->common.int_block == INT_BLOCK_HC) {
  5686. if (CHIP_IS_E1H(bp)) {
  5687. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_12 + func*4, 0);
  5688. REG_WR(bp, HC_REG_LEADING_EDGE_0 + port*8, 0);
  5689. REG_WR(bp, HC_REG_TRAILING_EDGE_0 + port*8, 0);
  5690. }
  5691. bnx2x_init_block(bp, BLOCK_HC, init_phase);
  5692. } else {
  5693. int num_segs, sb_idx, prod_offset;
  5694. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_12 + func*4, 0);
  5695. if (!CHIP_IS_E1x(bp)) {
  5696. REG_WR(bp, IGU_REG_LEADING_EDGE_LATCH, 0);
  5697. REG_WR(bp, IGU_REG_TRAILING_EDGE_LATCH, 0);
  5698. }
  5699. bnx2x_init_block(bp, BLOCK_IGU, init_phase);
  5700. if (!CHIP_IS_E1x(bp)) {
  5701. int dsb_idx = 0;
  5702. /**
  5703. * Producer memory:
  5704. * E2 mode: address 0-135 match to the mapping memory;
  5705. * 136 - PF0 default prod; 137 - PF1 default prod;
  5706. * 138 - PF2 default prod; 139 - PF3 default prod;
  5707. * 140 - PF0 attn prod; 141 - PF1 attn prod;
  5708. * 142 - PF2 attn prod; 143 - PF3 attn prod;
  5709. * 144-147 reserved.
  5710. *
  5711. * E1.5 mode - In backward compatible mode;
  5712. * for non default SB; each even line in the memory
  5713. * holds the U producer and each odd line hold
  5714. * the C producer. The first 128 producers are for
  5715. * NDSB (PF0 - 0-31; PF1 - 32-63 and so on). The last 20
  5716. * producers are for the DSB for each PF.
  5717. * Each PF has five segments: (the order inside each
  5718. * segment is PF0; PF1; PF2; PF3) - 128-131 U prods;
  5719. * 132-135 C prods; 136-139 X prods; 140-143 T prods;
  5720. * 144-147 attn prods;
  5721. */
  5722. /* non-default-status-blocks */
  5723. num_segs = CHIP_INT_MODE_IS_BC(bp) ?
  5724. IGU_BC_NDSB_NUM_SEGS : IGU_NORM_NDSB_NUM_SEGS;
  5725. for (sb_idx = 0; sb_idx < bp->igu_sb_cnt; sb_idx++) {
  5726. prod_offset = (bp->igu_base_sb + sb_idx) *
  5727. num_segs;
  5728. for (i = 0; i < num_segs; i++) {
  5729. addr = IGU_REG_PROD_CONS_MEMORY +
  5730. (prod_offset + i) * 4;
  5731. REG_WR(bp, addr, 0);
  5732. }
  5733. /* send consumer update with value 0 */
  5734. bnx2x_ack_sb(bp, bp->igu_base_sb + sb_idx,
  5735. USTORM_ID, 0, IGU_INT_NOP, 1);
  5736. bnx2x_igu_clear_sb(bp,
  5737. bp->igu_base_sb + sb_idx);
  5738. }
  5739. /* default-status-blocks */
  5740. num_segs = CHIP_INT_MODE_IS_BC(bp) ?
  5741. IGU_BC_DSB_NUM_SEGS : IGU_NORM_DSB_NUM_SEGS;
  5742. if (CHIP_MODE_IS_4_PORT(bp))
  5743. dsb_idx = BP_FUNC(bp);
  5744. else
  5745. dsb_idx = BP_VN(bp);
  5746. prod_offset = (CHIP_INT_MODE_IS_BC(bp) ?
  5747. IGU_BC_BASE_DSB_PROD + dsb_idx :
  5748. IGU_NORM_BASE_DSB_PROD + dsb_idx);
  5749. /*
  5750. * igu prods come in chunks of E1HVN_MAX (4) -
  5751. * does not matters what is the current chip mode
  5752. */
  5753. for (i = 0; i < (num_segs * E1HVN_MAX);
  5754. i += E1HVN_MAX) {
  5755. addr = IGU_REG_PROD_CONS_MEMORY +
  5756. (prod_offset + i)*4;
  5757. REG_WR(bp, addr, 0);
  5758. }
  5759. /* send consumer update with 0 */
  5760. if (CHIP_INT_MODE_IS_BC(bp)) {
  5761. bnx2x_ack_sb(bp, bp->igu_dsb_id,
  5762. USTORM_ID, 0, IGU_INT_NOP, 1);
  5763. bnx2x_ack_sb(bp, bp->igu_dsb_id,
  5764. CSTORM_ID, 0, IGU_INT_NOP, 1);
  5765. bnx2x_ack_sb(bp, bp->igu_dsb_id,
  5766. XSTORM_ID, 0, IGU_INT_NOP, 1);
  5767. bnx2x_ack_sb(bp, bp->igu_dsb_id,
  5768. TSTORM_ID, 0, IGU_INT_NOP, 1);
  5769. bnx2x_ack_sb(bp, bp->igu_dsb_id,
  5770. ATTENTION_ID, 0, IGU_INT_NOP, 1);
  5771. } else {
  5772. bnx2x_ack_sb(bp, bp->igu_dsb_id,
  5773. USTORM_ID, 0, IGU_INT_NOP, 1);
  5774. bnx2x_ack_sb(bp, bp->igu_dsb_id,
  5775. ATTENTION_ID, 0, IGU_INT_NOP, 1);
  5776. }
  5777. bnx2x_igu_clear_sb(bp, bp->igu_dsb_id);
  5778. /* !!! these should become driver const once
  5779. rf-tool supports split-68 const */
  5780. REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_LSB, 0);
  5781. REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_MSB, 0);
  5782. REG_WR(bp, IGU_REG_SB_MASK_LSB, 0);
  5783. REG_WR(bp, IGU_REG_SB_MASK_MSB, 0);
  5784. REG_WR(bp, IGU_REG_PBA_STATUS_LSB, 0);
  5785. REG_WR(bp, IGU_REG_PBA_STATUS_MSB, 0);
  5786. }
  5787. }
  5788. /* Reset PCIE errors for debug */
  5789. REG_WR(bp, 0x2114, 0xffffffff);
  5790. REG_WR(bp, 0x2120, 0xffffffff);
  5791. if (CHIP_IS_E1x(bp)) {
  5792. main_mem_size = HC_REG_MAIN_MEMORY_SIZE / 2; /*dwords*/
  5793. main_mem_base = HC_REG_MAIN_MEMORY +
  5794. BP_PORT(bp) * (main_mem_size * 4);
  5795. main_mem_prty_clr = HC_REG_HC_PRTY_STS_CLR;
  5796. main_mem_width = 8;
  5797. val = REG_RD(bp, main_mem_prty_clr);
  5798. if (val)
  5799. DP(BNX2X_MSG_MCP, "Hmmm... Parity errors in HC "
  5800. "block during "
  5801. "function init (0x%x)!\n", val);
  5802. /* Clear "false" parity errors in MSI-X table */
  5803. for (i = main_mem_base;
  5804. i < main_mem_base + main_mem_size * 4;
  5805. i += main_mem_width) {
  5806. bnx2x_read_dmae(bp, i, main_mem_width / 4);
  5807. bnx2x_write_dmae(bp, bnx2x_sp_mapping(bp, wb_data),
  5808. i, main_mem_width / 4);
  5809. }
  5810. /* Clear HC parity attention */
  5811. REG_RD(bp, main_mem_prty_clr);
  5812. }
  5813. #ifdef BNX2X_STOP_ON_ERROR
  5814. /* Enable STORMs SP logging */
  5815. REG_WR8(bp, BAR_USTRORM_INTMEM +
  5816. USTORM_RECORD_SLOW_PATH_OFFSET(BP_FUNC(bp)), 1);
  5817. REG_WR8(bp, BAR_TSTRORM_INTMEM +
  5818. TSTORM_RECORD_SLOW_PATH_OFFSET(BP_FUNC(bp)), 1);
  5819. REG_WR8(bp, BAR_CSTRORM_INTMEM +
  5820. CSTORM_RECORD_SLOW_PATH_OFFSET(BP_FUNC(bp)), 1);
  5821. REG_WR8(bp, BAR_XSTRORM_INTMEM +
  5822. XSTORM_RECORD_SLOW_PATH_OFFSET(BP_FUNC(bp)), 1);
  5823. #endif
  5824. bnx2x_phy_probe(&bp->link_params);
  5825. return 0;
  5826. }
  5827. void bnx2x_free_mem(struct bnx2x *bp)
  5828. {
  5829. /* fastpath */
  5830. bnx2x_free_fp_mem(bp);
  5831. /* end of fastpath */
  5832. BNX2X_PCI_FREE(bp->def_status_blk, bp->def_status_blk_mapping,
  5833. sizeof(struct host_sp_status_block));
  5834. BNX2X_PCI_FREE(bp->fw_stats, bp->fw_stats_mapping,
  5835. bp->fw_stats_data_sz + bp->fw_stats_req_sz);
  5836. BNX2X_PCI_FREE(bp->slowpath, bp->slowpath_mapping,
  5837. sizeof(struct bnx2x_slowpath));
  5838. BNX2X_PCI_FREE(bp->context.vcxt, bp->context.cxt_mapping,
  5839. bp->context.size);
  5840. bnx2x_ilt_mem_op(bp, ILT_MEMOP_FREE);
  5841. BNX2X_FREE(bp->ilt->lines);
  5842. #ifdef BCM_CNIC
  5843. if (!CHIP_IS_E1x(bp))
  5844. BNX2X_PCI_FREE(bp->cnic_sb.e2_sb, bp->cnic_sb_mapping,
  5845. sizeof(struct host_hc_status_block_e2));
  5846. else
  5847. BNX2X_PCI_FREE(bp->cnic_sb.e1x_sb, bp->cnic_sb_mapping,
  5848. sizeof(struct host_hc_status_block_e1x));
  5849. BNX2X_PCI_FREE(bp->t2, bp->t2_mapping, SRC_T2_SZ);
  5850. #endif
  5851. BNX2X_PCI_FREE(bp->spq, bp->spq_mapping, BCM_PAGE_SIZE);
  5852. BNX2X_PCI_FREE(bp->eq_ring, bp->eq_mapping,
  5853. BCM_PAGE_SIZE * NUM_EQ_PAGES);
  5854. }
  5855. static inline int bnx2x_alloc_fw_stats_mem(struct bnx2x *bp)
  5856. {
  5857. int num_groups;
  5858. int is_fcoe_stats = NO_FCOE(bp) ? 0 : 1;
  5859. /* number of queues for statistics is number of eth queues + FCoE */
  5860. u8 num_queue_stats = BNX2X_NUM_ETH_QUEUES(bp) + is_fcoe_stats;
  5861. /* Total number of FW statistics requests =
  5862. * 1 for port stats + 1 for PF stats + potential 1 for FCoE stats +
  5863. * num of queues
  5864. */
  5865. bp->fw_stats_num = 2 + is_fcoe_stats + num_queue_stats;
  5866. /* Request is built from stats_query_header and an array of
  5867. * stats_query_cmd_group each of which contains
  5868. * STATS_QUERY_CMD_COUNT rules. The real number or requests is
  5869. * configured in the stats_query_header.
  5870. */
  5871. num_groups = ((bp->fw_stats_num) / STATS_QUERY_CMD_COUNT) +
  5872. (((bp->fw_stats_num) % STATS_QUERY_CMD_COUNT) ? 1 : 0);
  5873. bp->fw_stats_req_sz = sizeof(struct stats_query_header) +
  5874. num_groups * sizeof(struct stats_query_cmd_group);
  5875. /* Data for statistics requests + stats_conter
  5876. *
  5877. * stats_counter holds per-STORM counters that are incremented
  5878. * when STORM has finished with the current request.
  5879. *
  5880. * memory for FCoE offloaded statistics are counted anyway,
  5881. * even if they will not be sent.
  5882. */
  5883. bp->fw_stats_data_sz = sizeof(struct per_port_stats) +
  5884. sizeof(struct per_pf_stats) +
  5885. sizeof(struct fcoe_statistics_params) +
  5886. sizeof(struct per_queue_stats) * num_queue_stats +
  5887. sizeof(struct stats_counter);
  5888. BNX2X_PCI_ALLOC(bp->fw_stats, &bp->fw_stats_mapping,
  5889. bp->fw_stats_data_sz + bp->fw_stats_req_sz);
  5890. /* Set shortcuts */
  5891. bp->fw_stats_req = (struct bnx2x_fw_stats_req *)bp->fw_stats;
  5892. bp->fw_stats_req_mapping = bp->fw_stats_mapping;
  5893. bp->fw_stats_data = (struct bnx2x_fw_stats_data *)
  5894. ((u8 *)bp->fw_stats + bp->fw_stats_req_sz);
  5895. bp->fw_stats_data_mapping = bp->fw_stats_mapping +
  5896. bp->fw_stats_req_sz;
  5897. return 0;
  5898. alloc_mem_err:
  5899. BNX2X_PCI_FREE(bp->fw_stats, bp->fw_stats_mapping,
  5900. bp->fw_stats_data_sz + bp->fw_stats_req_sz);
  5901. return -ENOMEM;
  5902. }
  5903. int bnx2x_alloc_mem(struct bnx2x *bp)
  5904. {
  5905. #ifdef BCM_CNIC
  5906. if (!CHIP_IS_E1x(bp))
  5907. /* size = the status block + ramrod buffers */
  5908. BNX2X_PCI_ALLOC(bp->cnic_sb.e2_sb, &bp->cnic_sb_mapping,
  5909. sizeof(struct host_hc_status_block_e2));
  5910. else
  5911. BNX2X_PCI_ALLOC(bp->cnic_sb.e1x_sb, &bp->cnic_sb_mapping,
  5912. sizeof(struct host_hc_status_block_e1x));
  5913. /* allocate searcher T2 table */
  5914. BNX2X_PCI_ALLOC(bp->t2, &bp->t2_mapping, SRC_T2_SZ);
  5915. #endif
  5916. BNX2X_PCI_ALLOC(bp->def_status_blk, &bp->def_status_blk_mapping,
  5917. sizeof(struct host_sp_status_block));
  5918. BNX2X_PCI_ALLOC(bp->slowpath, &bp->slowpath_mapping,
  5919. sizeof(struct bnx2x_slowpath));
  5920. /* Allocated memory for FW statistics */
  5921. if (bnx2x_alloc_fw_stats_mem(bp))
  5922. goto alloc_mem_err;
  5923. bp->context.size = sizeof(union cdu_context) * BNX2X_L2_CID_COUNT(bp);
  5924. BNX2X_PCI_ALLOC(bp->context.vcxt, &bp->context.cxt_mapping,
  5925. bp->context.size);
  5926. BNX2X_ALLOC(bp->ilt->lines, sizeof(struct ilt_line) * ILT_MAX_LINES);
  5927. if (bnx2x_ilt_mem_op(bp, ILT_MEMOP_ALLOC))
  5928. goto alloc_mem_err;
  5929. /* Slow path ring */
  5930. BNX2X_PCI_ALLOC(bp->spq, &bp->spq_mapping, BCM_PAGE_SIZE);
  5931. /* EQ */
  5932. BNX2X_PCI_ALLOC(bp->eq_ring, &bp->eq_mapping,
  5933. BCM_PAGE_SIZE * NUM_EQ_PAGES);
  5934. /* fastpath */
  5935. /* need to be done at the end, since it's self adjusting to amount
  5936. * of memory available for RSS queues
  5937. */
  5938. if (bnx2x_alloc_fp_mem(bp))
  5939. goto alloc_mem_err;
  5940. return 0;
  5941. alloc_mem_err:
  5942. bnx2x_free_mem(bp);
  5943. return -ENOMEM;
  5944. }
  5945. /*
  5946. * Init service functions
  5947. */
  5948. int bnx2x_set_mac_one(struct bnx2x *bp, u8 *mac,
  5949. struct bnx2x_vlan_mac_obj *obj, bool set,
  5950. int mac_type, unsigned long *ramrod_flags)
  5951. {
  5952. int rc;
  5953. struct bnx2x_vlan_mac_ramrod_params ramrod_param;
  5954. memset(&ramrod_param, 0, sizeof(ramrod_param));
  5955. /* Fill general parameters */
  5956. ramrod_param.vlan_mac_obj = obj;
  5957. ramrod_param.ramrod_flags = *ramrod_flags;
  5958. /* Fill a user request section if needed */
  5959. if (!test_bit(RAMROD_CONT, ramrod_flags)) {
  5960. memcpy(ramrod_param.user_req.u.mac.mac, mac, ETH_ALEN);
  5961. __set_bit(mac_type, &ramrod_param.user_req.vlan_mac_flags);
  5962. /* Set the command: ADD or DEL */
  5963. if (set)
  5964. ramrod_param.user_req.cmd = BNX2X_VLAN_MAC_ADD;
  5965. else
  5966. ramrod_param.user_req.cmd = BNX2X_VLAN_MAC_DEL;
  5967. }
  5968. rc = bnx2x_config_vlan_mac(bp, &ramrod_param);
  5969. if (rc < 0)
  5970. BNX2X_ERR("%s MAC failed\n", (set ? "Set" : "Del"));
  5971. return rc;
  5972. }
  5973. int bnx2x_del_all_macs(struct bnx2x *bp,
  5974. struct bnx2x_vlan_mac_obj *mac_obj,
  5975. int mac_type, bool wait_for_comp)
  5976. {
  5977. int rc;
  5978. unsigned long ramrod_flags = 0, vlan_mac_flags = 0;
  5979. /* Wait for completion of requested */
  5980. if (wait_for_comp)
  5981. __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
  5982. /* Set the mac type of addresses we want to clear */
  5983. __set_bit(mac_type, &vlan_mac_flags);
  5984. rc = mac_obj->delete_all(bp, mac_obj, &vlan_mac_flags, &ramrod_flags);
  5985. if (rc < 0)
  5986. BNX2X_ERR("Failed to delete MACs: %d\n", rc);
  5987. return rc;
  5988. }
  5989. int bnx2x_set_eth_mac(struct bnx2x *bp, bool set)
  5990. {
  5991. unsigned long ramrod_flags = 0;
  5992. #ifdef BCM_CNIC
  5993. if (is_zero_ether_addr(bp->dev->dev_addr) && IS_MF_ISCSI_SD(bp)) {
  5994. DP(NETIF_MSG_IFUP, "Ignoring Zero MAC for iSCSI SD mode\n");
  5995. return 0;
  5996. }
  5997. #endif
  5998. DP(NETIF_MSG_IFUP, "Adding Eth MAC\n");
  5999. __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
  6000. /* Eth MAC is set on RSS leading client (fp[0]) */
  6001. return bnx2x_set_mac_one(bp, bp->dev->dev_addr, &bp->fp->mac_obj, set,
  6002. BNX2X_ETH_MAC, &ramrod_flags);
  6003. }
  6004. int bnx2x_setup_leading(struct bnx2x *bp)
  6005. {
  6006. return bnx2x_setup_queue(bp, &bp->fp[0], 1);
  6007. }
  6008. /**
  6009. * bnx2x_set_int_mode - configure interrupt mode
  6010. *
  6011. * @bp: driver handle
  6012. *
  6013. * In case of MSI-X it will also try to enable MSI-X.
  6014. */
  6015. static void __devinit bnx2x_set_int_mode(struct bnx2x *bp)
  6016. {
  6017. switch (int_mode) {
  6018. case INT_MODE_MSI:
  6019. bnx2x_enable_msi(bp);
  6020. /* falling through... */
  6021. case INT_MODE_INTx:
  6022. bp->num_queues = 1 + NON_ETH_CONTEXT_USE;
  6023. DP(NETIF_MSG_IFUP, "set number of queues to 1\n");
  6024. break;
  6025. default:
  6026. /* Set number of queues according to bp->multi_mode value */
  6027. bnx2x_set_num_queues(bp);
  6028. DP(NETIF_MSG_IFUP, "set number of queues to %d\n",
  6029. bp->num_queues);
  6030. /* if we can't use MSI-X we only need one fp,
  6031. * so try to enable MSI-X with the requested number of fp's
  6032. * and fallback to MSI or legacy INTx with one fp
  6033. */
  6034. if (bnx2x_enable_msix(bp)) {
  6035. /* failed to enable MSI-X */
  6036. if (bp->multi_mode)
  6037. DP(NETIF_MSG_IFUP,
  6038. "Multi requested but failed to "
  6039. "enable MSI-X (%d), "
  6040. "set number of queues to %d\n",
  6041. bp->num_queues,
  6042. 1 + NON_ETH_CONTEXT_USE);
  6043. bp->num_queues = 1 + NON_ETH_CONTEXT_USE;
  6044. /* Try to enable MSI */
  6045. if (!(bp->flags & DISABLE_MSI_FLAG))
  6046. bnx2x_enable_msi(bp);
  6047. }
  6048. break;
  6049. }
  6050. }
  6051. /* must be called prioir to any HW initializations */
  6052. static inline u16 bnx2x_cid_ilt_lines(struct bnx2x *bp)
  6053. {
  6054. return L2_ILT_LINES(bp);
  6055. }
  6056. void bnx2x_ilt_set_info(struct bnx2x *bp)
  6057. {
  6058. struct ilt_client_info *ilt_client;
  6059. struct bnx2x_ilt *ilt = BP_ILT(bp);
  6060. u16 line = 0;
  6061. ilt->start_line = FUNC_ILT_BASE(BP_FUNC(bp));
  6062. DP(BNX2X_MSG_SP, "ilt starts at line %d\n", ilt->start_line);
  6063. /* CDU */
  6064. ilt_client = &ilt->clients[ILT_CLIENT_CDU];
  6065. ilt_client->client_num = ILT_CLIENT_CDU;
  6066. ilt_client->page_size = CDU_ILT_PAGE_SZ;
  6067. ilt_client->flags = ILT_CLIENT_SKIP_MEM;
  6068. ilt_client->start = line;
  6069. line += bnx2x_cid_ilt_lines(bp);
  6070. #ifdef BCM_CNIC
  6071. line += CNIC_ILT_LINES;
  6072. #endif
  6073. ilt_client->end = line - 1;
  6074. DP(BNX2X_MSG_SP, "ilt client[CDU]: start %d, end %d, psz 0x%x, "
  6075. "flags 0x%x, hw psz %d\n",
  6076. ilt_client->start,
  6077. ilt_client->end,
  6078. ilt_client->page_size,
  6079. ilt_client->flags,
  6080. ilog2(ilt_client->page_size >> 12));
  6081. /* QM */
  6082. if (QM_INIT(bp->qm_cid_count)) {
  6083. ilt_client = &ilt->clients[ILT_CLIENT_QM];
  6084. ilt_client->client_num = ILT_CLIENT_QM;
  6085. ilt_client->page_size = QM_ILT_PAGE_SZ;
  6086. ilt_client->flags = 0;
  6087. ilt_client->start = line;
  6088. /* 4 bytes for each cid */
  6089. line += DIV_ROUND_UP(bp->qm_cid_count * QM_QUEUES_PER_FUNC * 4,
  6090. QM_ILT_PAGE_SZ);
  6091. ilt_client->end = line - 1;
  6092. DP(BNX2X_MSG_SP, "ilt client[QM]: start %d, end %d, psz 0x%x, "
  6093. "flags 0x%x, hw psz %d\n",
  6094. ilt_client->start,
  6095. ilt_client->end,
  6096. ilt_client->page_size,
  6097. ilt_client->flags,
  6098. ilog2(ilt_client->page_size >> 12));
  6099. }
  6100. /* SRC */
  6101. ilt_client = &ilt->clients[ILT_CLIENT_SRC];
  6102. #ifdef BCM_CNIC
  6103. ilt_client->client_num = ILT_CLIENT_SRC;
  6104. ilt_client->page_size = SRC_ILT_PAGE_SZ;
  6105. ilt_client->flags = 0;
  6106. ilt_client->start = line;
  6107. line += SRC_ILT_LINES;
  6108. ilt_client->end = line - 1;
  6109. DP(BNX2X_MSG_SP, "ilt client[SRC]: start %d, end %d, psz 0x%x, "
  6110. "flags 0x%x, hw psz %d\n",
  6111. ilt_client->start,
  6112. ilt_client->end,
  6113. ilt_client->page_size,
  6114. ilt_client->flags,
  6115. ilog2(ilt_client->page_size >> 12));
  6116. #else
  6117. ilt_client->flags = (ILT_CLIENT_SKIP_INIT | ILT_CLIENT_SKIP_MEM);
  6118. #endif
  6119. /* TM */
  6120. ilt_client = &ilt->clients[ILT_CLIENT_TM];
  6121. #ifdef BCM_CNIC
  6122. ilt_client->client_num = ILT_CLIENT_TM;
  6123. ilt_client->page_size = TM_ILT_PAGE_SZ;
  6124. ilt_client->flags = 0;
  6125. ilt_client->start = line;
  6126. line += TM_ILT_LINES;
  6127. ilt_client->end = line - 1;
  6128. DP(BNX2X_MSG_SP, "ilt client[TM]: start %d, end %d, psz 0x%x, "
  6129. "flags 0x%x, hw psz %d\n",
  6130. ilt_client->start,
  6131. ilt_client->end,
  6132. ilt_client->page_size,
  6133. ilt_client->flags,
  6134. ilog2(ilt_client->page_size >> 12));
  6135. #else
  6136. ilt_client->flags = (ILT_CLIENT_SKIP_INIT | ILT_CLIENT_SKIP_MEM);
  6137. #endif
  6138. BUG_ON(line > ILT_MAX_LINES);
  6139. }
  6140. /**
  6141. * bnx2x_pf_q_prep_init - prepare INIT transition parameters
  6142. *
  6143. * @bp: driver handle
  6144. * @fp: pointer to fastpath
  6145. * @init_params: pointer to parameters structure
  6146. *
  6147. * parameters configured:
  6148. * - HC configuration
  6149. * - Queue's CDU context
  6150. */
  6151. static inline void bnx2x_pf_q_prep_init(struct bnx2x *bp,
  6152. struct bnx2x_fastpath *fp, struct bnx2x_queue_init_params *init_params)
  6153. {
  6154. u8 cos;
  6155. /* FCoE Queue uses Default SB, thus has no HC capabilities */
  6156. if (!IS_FCOE_FP(fp)) {
  6157. __set_bit(BNX2X_Q_FLG_HC, &init_params->rx.flags);
  6158. __set_bit(BNX2X_Q_FLG_HC, &init_params->tx.flags);
  6159. /* If HC is supporterd, enable host coalescing in the transition
  6160. * to INIT state.
  6161. */
  6162. __set_bit(BNX2X_Q_FLG_HC_EN, &init_params->rx.flags);
  6163. __set_bit(BNX2X_Q_FLG_HC_EN, &init_params->tx.flags);
  6164. /* HC rate */
  6165. init_params->rx.hc_rate = bp->rx_ticks ?
  6166. (1000000 / bp->rx_ticks) : 0;
  6167. init_params->tx.hc_rate = bp->tx_ticks ?
  6168. (1000000 / bp->tx_ticks) : 0;
  6169. /* FW SB ID */
  6170. init_params->rx.fw_sb_id = init_params->tx.fw_sb_id =
  6171. fp->fw_sb_id;
  6172. /*
  6173. * CQ index among the SB indices: FCoE clients uses the default
  6174. * SB, therefore it's different.
  6175. */
  6176. init_params->rx.sb_cq_index = HC_INDEX_ETH_RX_CQ_CONS;
  6177. init_params->tx.sb_cq_index = HC_INDEX_ETH_FIRST_TX_CQ_CONS;
  6178. }
  6179. /* set maximum number of COSs supported by this queue */
  6180. init_params->max_cos = fp->max_cos;
  6181. DP(BNX2X_MSG_SP, "fp: %d setting queue params max cos to: %d\n",
  6182. fp->index, init_params->max_cos);
  6183. /* set the context pointers queue object */
  6184. for (cos = FIRST_TX_COS_INDEX; cos < init_params->max_cos; cos++)
  6185. init_params->cxts[cos] =
  6186. &bp->context.vcxt[fp->txdata[cos].cid].eth;
  6187. }
  6188. int bnx2x_setup_tx_only(struct bnx2x *bp, struct bnx2x_fastpath *fp,
  6189. struct bnx2x_queue_state_params *q_params,
  6190. struct bnx2x_queue_setup_tx_only_params *tx_only_params,
  6191. int tx_index, bool leading)
  6192. {
  6193. memset(tx_only_params, 0, sizeof(*tx_only_params));
  6194. /* Set the command */
  6195. q_params->cmd = BNX2X_Q_CMD_SETUP_TX_ONLY;
  6196. /* Set tx-only QUEUE flags: don't zero statistics */
  6197. tx_only_params->flags = bnx2x_get_common_flags(bp, fp, false);
  6198. /* choose the index of the cid to send the slow path on */
  6199. tx_only_params->cid_index = tx_index;
  6200. /* Set general TX_ONLY_SETUP parameters */
  6201. bnx2x_pf_q_prep_general(bp, fp, &tx_only_params->gen_params, tx_index);
  6202. /* Set Tx TX_ONLY_SETUP parameters */
  6203. bnx2x_pf_tx_q_prep(bp, fp, &tx_only_params->txq_params, tx_index);
  6204. DP(BNX2X_MSG_SP, "preparing to send tx-only ramrod for connection:"
  6205. "cos %d, primary cid %d, cid %d, "
  6206. "client id %d, sp-client id %d, flags %lx\n",
  6207. tx_index, q_params->q_obj->cids[FIRST_TX_COS_INDEX],
  6208. q_params->q_obj->cids[tx_index], q_params->q_obj->cl_id,
  6209. tx_only_params->gen_params.spcl_id, tx_only_params->flags);
  6210. /* send the ramrod */
  6211. return bnx2x_queue_state_change(bp, q_params);
  6212. }
  6213. /**
  6214. * bnx2x_setup_queue - setup queue
  6215. *
  6216. * @bp: driver handle
  6217. * @fp: pointer to fastpath
  6218. * @leading: is leading
  6219. *
  6220. * This function performs 2 steps in a Queue state machine
  6221. * actually: 1) RESET->INIT 2) INIT->SETUP
  6222. */
  6223. int bnx2x_setup_queue(struct bnx2x *bp, struct bnx2x_fastpath *fp,
  6224. bool leading)
  6225. {
  6226. struct bnx2x_queue_state_params q_params = {0};
  6227. struct bnx2x_queue_setup_params *setup_params =
  6228. &q_params.params.setup;
  6229. struct bnx2x_queue_setup_tx_only_params *tx_only_params =
  6230. &q_params.params.tx_only;
  6231. int rc;
  6232. u8 tx_index;
  6233. DP(BNX2X_MSG_SP, "setting up queue %d\n", fp->index);
  6234. /* reset IGU state skip FCoE L2 queue */
  6235. if (!IS_FCOE_FP(fp))
  6236. bnx2x_ack_sb(bp, fp->igu_sb_id, USTORM_ID, 0,
  6237. IGU_INT_ENABLE, 0);
  6238. q_params.q_obj = &fp->q_obj;
  6239. /* We want to wait for completion in this context */
  6240. __set_bit(RAMROD_COMP_WAIT, &q_params.ramrod_flags);
  6241. /* Prepare the INIT parameters */
  6242. bnx2x_pf_q_prep_init(bp, fp, &q_params.params.init);
  6243. /* Set the command */
  6244. q_params.cmd = BNX2X_Q_CMD_INIT;
  6245. /* Change the state to INIT */
  6246. rc = bnx2x_queue_state_change(bp, &q_params);
  6247. if (rc) {
  6248. BNX2X_ERR("Queue(%d) INIT failed\n", fp->index);
  6249. return rc;
  6250. }
  6251. DP(BNX2X_MSG_SP, "init complete\n");
  6252. /* Now move the Queue to the SETUP state... */
  6253. memset(setup_params, 0, sizeof(*setup_params));
  6254. /* Set QUEUE flags */
  6255. setup_params->flags = bnx2x_get_q_flags(bp, fp, leading);
  6256. /* Set general SETUP parameters */
  6257. bnx2x_pf_q_prep_general(bp, fp, &setup_params->gen_params,
  6258. FIRST_TX_COS_INDEX);
  6259. bnx2x_pf_rx_q_prep(bp, fp, &setup_params->pause_params,
  6260. &setup_params->rxq_params);
  6261. bnx2x_pf_tx_q_prep(bp, fp, &setup_params->txq_params,
  6262. FIRST_TX_COS_INDEX);
  6263. /* Set the command */
  6264. q_params.cmd = BNX2X_Q_CMD_SETUP;
  6265. /* Change the state to SETUP */
  6266. rc = bnx2x_queue_state_change(bp, &q_params);
  6267. if (rc) {
  6268. BNX2X_ERR("Queue(%d) SETUP failed\n", fp->index);
  6269. return rc;
  6270. }
  6271. /* loop through the relevant tx-only indices */
  6272. for (tx_index = FIRST_TX_ONLY_COS_INDEX;
  6273. tx_index < fp->max_cos;
  6274. tx_index++) {
  6275. /* prepare and send tx-only ramrod*/
  6276. rc = bnx2x_setup_tx_only(bp, fp, &q_params,
  6277. tx_only_params, tx_index, leading);
  6278. if (rc) {
  6279. BNX2X_ERR("Queue(%d.%d) TX_ONLY_SETUP failed\n",
  6280. fp->index, tx_index);
  6281. return rc;
  6282. }
  6283. }
  6284. return rc;
  6285. }
  6286. static int bnx2x_stop_queue(struct bnx2x *bp, int index)
  6287. {
  6288. struct bnx2x_fastpath *fp = &bp->fp[index];
  6289. struct bnx2x_fp_txdata *txdata;
  6290. struct bnx2x_queue_state_params q_params = {0};
  6291. int rc, tx_index;
  6292. DP(BNX2X_MSG_SP, "stopping queue %d cid %d\n", index, fp->cid);
  6293. q_params.q_obj = &fp->q_obj;
  6294. /* We want to wait for completion in this context */
  6295. __set_bit(RAMROD_COMP_WAIT, &q_params.ramrod_flags);
  6296. /* close tx-only connections */
  6297. for (tx_index = FIRST_TX_ONLY_COS_INDEX;
  6298. tx_index < fp->max_cos;
  6299. tx_index++){
  6300. /* ascertain this is a normal queue*/
  6301. txdata = &fp->txdata[tx_index];
  6302. DP(BNX2X_MSG_SP, "stopping tx-only queue %d\n",
  6303. txdata->txq_index);
  6304. /* send halt terminate on tx-only connection */
  6305. q_params.cmd = BNX2X_Q_CMD_TERMINATE;
  6306. memset(&q_params.params.terminate, 0,
  6307. sizeof(q_params.params.terminate));
  6308. q_params.params.terminate.cid_index = tx_index;
  6309. rc = bnx2x_queue_state_change(bp, &q_params);
  6310. if (rc)
  6311. return rc;
  6312. /* send halt terminate on tx-only connection */
  6313. q_params.cmd = BNX2X_Q_CMD_CFC_DEL;
  6314. memset(&q_params.params.cfc_del, 0,
  6315. sizeof(q_params.params.cfc_del));
  6316. q_params.params.cfc_del.cid_index = tx_index;
  6317. rc = bnx2x_queue_state_change(bp, &q_params);
  6318. if (rc)
  6319. return rc;
  6320. }
  6321. /* Stop the primary connection: */
  6322. /* ...halt the connection */
  6323. q_params.cmd = BNX2X_Q_CMD_HALT;
  6324. rc = bnx2x_queue_state_change(bp, &q_params);
  6325. if (rc)
  6326. return rc;
  6327. /* ...terminate the connection */
  6328. q_params.cmd = BNX2X_Q_CMD_TERMINATE;
  6329. memset(&q_params.params.terminate, 0,
  6330. sizeof(q_params.params.terminate));
  6331. q_params.params.terminate.cid_index = FIRST_TX_COS_INDEX;
  6332. rc = bnx2x_queue_state_change(bp, &q_params);
  6333. if (rc)
  6334. return rc;
  6335. /* ...delete cfc entry */
  6336. q_params.cmd = BNX2X_Q_CMD_CFC_DEL;
  6337. memset(&q_params.params.cfc_del, 0,
  6338. sizeof(q_params.params.cfc_del));
  6339. q_params.params.cfc_del.cid_index = FIRST_TX_COS_INDEX;
  6340. return bnx2x_queue_state_change(bp, &q_params);
  6341. }
  6342. static void bnx2x_reset_func(struct bnx2x *bp)
  6343. {
  6344. int port = BP_PORT(bp);
  6345. int func = BP_FUNC(bp);
  6346. int i;
  6347. /* Disable the function in the FW */
  6348. REG_WR8(bp, BAR_XSTRORM_INTMEM + XSTORM_FUNC_EN_OFFSET(func), 0);
  6349. REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_FUNC_EN_OFFSET(func), 0);
  6350. REG_WR8(bp, BAR_TSTRORM_INTMEM + TSTORM_FUNC_EN_OFFSET(func), 0);
  6351. REG_WR8(bp, BAR_USTRORM_INTMEM + USTORM_FUNC_EN_OFFSET(func), 0);
  6352. /* FP SBs */
  6353. for_each_eth_queue(bp, i) {
  6354. struct bnx2x_fastpath *fp = &bp->fp[i];
  6355. REG_WR8(bp, BAR_CSTRORM_INTMEM +
  6356. CSTORM_STATUS_BLOCK_DATA_STATE_OFFSET(fp->fw_sb_id),
  6357. SB_DISABLED);
  6358. }
  6359. #ifdef BCM_CNIC
  6360. /* CNIC SB */
  6361. REG_WR8(bp, BAR_CSTRORM_INTMEM +
  6362. CSTORM_STATUS_BLOCK_DATA_STATE_OFFSET(bnx2x_cnic_fw_sb_id(bp)),
  6363. SB_DISABLED);
  6364. #endif
  6365. /* SP SB */
  6366. REG_WR8(bp, BAR_CSTRORM_INTMEM +
  6367. CSTORM_SP_STATUS_BLOCK_DATA_STATE_OFFSET(func),
  6368. SB_DISABLED);
  6369. for (i = 0; i < XSTORM_SPQ_DATA_SIZE / 4; i++)
  6370. REG_WR(bp, BAR_XSTRORM_INTMEM + XSTORM_SPQ_DATA_OFFSET(func),
  6371. 0);
  6372. /* Configure IGU */
  6373. if (bp->common.int_block == INT_BLOCK_HC) {
  6374. REG_WR(bp, HC_REG_LEADING_EDGE_0 + port*8, 0);
  6375. REG_WR(bp, HC_REG_TRAILING_EDGE_0 + port*8, 0);
  6376. } else {
  6377. REG_WR(bp, IGU_REG_LEADING_EDGE_LATCH, 0);
  6378. REG_WR(bp, IGU_REG_TRAILING_EDGE_LATCH, 0);
  6379. }
  6380. #ifdef BCM_CNIC
  6381. /* Disable Timer scan */
  6382. REG_WR(bp, TM_REG_EN_LINEAR0_TIMER + port*4, 0);
  6383. /*
  6384. * Wait for at least 10ms and up to 2 second for the timers scan to
  6385. * complete
  6386. */
  6387. for (i = 0; i < 200; i++) {
  6388. msleep(10);
  6389. if (!REG_RD(bp, TM_REG_LIN0_SCAN_ON + port*4))
  6390. break;
  6391. }
  6392. #endif
  6393. /* Clear ILT */
  6394. bnx2x_clear_func_ilt(bp, func);
  6395. /* Timers workaround bug for E2: if this is vnic-3,
  6396. * we need to set the entire ilt range for this timers.
  6397. */
  6398. if (!CHIP_IS_E1x(bp) && BP_VN(bp) == 3) {
  6399. struct ilt_client_info ilt_cli;
  6400. /* use dummy TM client */
  6401. memset(&ilt_cli, 0, sizeof(struct ilt_client_info));
  6402. ilt_cli.start = 0;
  6403. ilt_cli.end = ILT_NUM_PAGE_ENTRIES - 1;
  6404. ilt_cli.client_num = ILT_CLIENT_TM;
  6405. bnx2x_ilt_boundry_init_op(bp, &ilt_cli, 0, INITOP_CLEAR);
  6406. }
  6407. /* this assumes that reset_port() called before reset_func()*/
  6408. if (!CHIP_IS_E1x(bp))
  6409. bnx2x_pf_disable(bp);
  6410. bp->dmae_ready = 0;
  6411. }
  6412. static void bnx2x_reset_port(struct bnx2x *bp)
  6413. {
  6414. int port = BP_PORT(bp);
  6415. u32 val;
  6416. /* Reset physical Link */
  6417. bnx2x__link_reset(bp);
  6418. REG_WR(bp, NIG_REG_MASK_INTERRUPT_PORT0 + port*4, 0);
  6419. /* Do not rcv packets to BRB */
  6420. REG_WR(bp, NIG_REG_LLH0_BRB1_DRV_MASK + port*4, 0x0);
  6421. /* Do not direct rcv packets that are not for MCP to the BRB */
  6422. REG_WR(bp, (port ? NIG_REG_LLH1_BRB1_NOT_MCP :
  6423. NIG_REG_LLH0_BRB1_NOT_MCP), 0x0);
  6424. /* Configure AEU */
  6425. REG_WR(bp, MISC_REG_AEU_MASK_ATTN_FUNC_0 + port*4, 0);
  6426. msleep(100);
  6427. /* Check for BRB port occupancy */
  6428. val = REG_RD(bp, BRB1_REG_PORT_NUM_OCC_BLOCKS_0 + port*4);
  6429. if (val)
  6430. DP(NETIF_MSG_IFDOWN,
  6431. "BRB1 is not empty %d blocks are occupied\n", val);
  6432. /* TODO: Close Doorbell port? */
  6433. }
  6434. static inline int bnx2x_reset_hw(struct bnx2x *bp, u32 load_code)
  6435. {
  6436. struct bnx2x_func_state_params func_params = {0};
  6437. /* Prepare parameters for function state transitions */
  6438. __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags);
  6439. func_params.f_obj = &bp->func_obj;
  6440. func_params.cmd = BNX2X_F_CMD_HW_RESET;
  6441. func_params.params.hw_init.load_phase = load_code;
  6442. return bnx2x_func_state_change(bp, &func_params);
  6443. }
  6444. static inline int bnx2x_func_stop(struct bnx2x *bp)
  6445. {
  6446. struct bnx2x_func_state_params func_params = {0};
  6447. int rc;
  6448. /* Prepare parameters for function state transitions */
  6449. __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags);
  6450. func_params.f_obj = &bp->func_obj;
  6451. func_params.cmd = BNX2X_F_CMD_STOP;
  6452. /*
  6453. * Try to stop the function the 'good way'. If fails (in case
  6454. * of a parity error during bnx2x_chip_cleanup()) and we are
  6455. * not in a debug mode, perform a state transaction in order to
  6456. * enable further HW_RESET transaction.
  6457. */
  6458. rc = bnx2x_func_state_change(bp, &func_params);
  6459. if (rc) {
  6460. #ifdef BNX2X_STOP_ON_ERROR
  6461. return rc;
  6462. #else
  6463. BNX2X_ERR("FUNC_STOP ramrod failed. Running a dry "
  6464. "transaction\n");
  6465. __set_bit(RAMROD_DRV_CLR_ONLY, &func_params.ramrod_flags);
  6466. return bnx2x_func_state_change(bp, &func_params);
  6467. #endif
  6468. }
  6469. return 0;
  6470. }
  6471. /**
  6472. * bnx2x_send_unload_req - request unload mode from the MCP.
  6473. *
  6474. * @bp: driver handle
  6475. * @unload_mode: requested function's unload mode
  6476. *
  6477. * Return unload mode returned by the MCP: COMMON, PORT or FUNC.
  6478. */
  6479. u32 bnx2x_send_unload_req(struct bnx2x *bp, int unload_mode)
  6480. {
  6481. u32 reset_code = 0;
  6482. int port = BP_PORT(bp);
  6483. /* Select the UNLOAD request mode */
  6484. if (unload_mode == UNLOAD_NORMAL)
  6485. reset_code = DRV_MSG_CODE_UNLOAD_REQ_WOL_DIS;
  6486. else if (bp->flags & NO_WOL_FLAG)
  6487. reset_code = DRV_MSG_CODE_UNLOAD_REQ_WOL_MCP;
  6488. else if (bp->wol) {
  6489. u32 emac_base = port ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
  6490. u8 *mac_addr = bp->dev->dev_addr;
  6491. u32 val;
  6492. u16 pmc;
  6493. /* The mac address is written to entries 1-4 to
  6494. * preserve entry 0 which is used by the PMF
  6495. */
  6496. u8 entry = (BP_VN(bp) + 1)*8;
  6497. val = (mac_addr[0] << 8) | mac_addr[1];
  6498. EMAC_WR(bp, EMAC_REG_EMAC_MAC_MATCH + entry, val);
  6499. val = (mac_addr[2] << 24) | (mac_addr[3] << 16) |
  6500. (mac_addr[4] << 8) | mac_addr[5];
  6501. EMAC_WR(bp, EMAC_REG_EMAC_MAC_MATCH + entry + 4, val);
  6502. /* Enable the PME and clear the status */
  6503. pci_read_config_word(bp->pdev, bp->pm_cap + PCI_PM_CTRL, &pmc);
  6504. pmc |= PCI_PM_CTRL_PME_ENABLE | PCI_PM_CTRL_PME_STATUS;
  6505. pci_write_config_word(bp->pdev, bp->pm_cap + PCI_PM_CTRL, pmc);
  6506. reset_code = DRV_MSG_CODE_UNLOAD_REQ_WOL_EN;
  6507. } else
  6508. reset_code = DRV_MSG_CODE_UNLOAD_REQ_WOL_DIS;
  6509. /* Send the request to the MCP */
  6510. if (!BP_NOMCP(bp))
  6511. reset_code = bnx2x_fw_command(bp, reset_code, 0);
  6512. else {
  6513. int path = BP_PATH(bp);
  6514. DP(NETIF_MSG_IFDOWN, "NO MCP - load counts[%d] "
  6515. "%d, %d, %d\n",
  6516. path, load_count[path][0], load_count[path][1],
  6517. load_count[path][2]);
  6518. load_count[path][0]--;
  6519. load_count[path][1 + port]--;
  6520. DP(NETIF_MSG_IFDOWN, "NO MCP - new load counts[%d] "
  6521. "%d, %d, %d\n",
  6522. path, load_count[path][0], load_count[path][1],
  6523. load_count[path][2]);
  6524. if (load_count[path][0] == 0)
  6525. reset_code = FW_MSG_CODE_DRV_UNLOAD_COMMON;
  6526. else if (load_count[path][1 + port] == 0)
  6527. reset_code = FW_MSG_CODE_DRV_UNLOAD_PORT;
  6528. else
  6529. reset_code = FW_MSG_CODE_DRV_UNLOAD_FUNCTION;
  6530. }
  6531. return reset_code;
  6532. }
  6533. /**
  6534. * bnx2x_send_unload_done - send UNLOAD_DONE command to the MCP.
  6535. *
  6536. * @bp: driver handle
  6537. */
  6538. void bnx2x_send_unload_done(struct bnx2x *bp)
  6539. {
  6540. /* Report UNLOAD_DONE to MCP */
  6541. if (!BP_NOMCP(bp))
  6542. bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_DONE, 0);
  6543. }
  6544. static inline int bnx2x_func_wait_started(struct bnx2x *bp)
  6545. {
  6546. int tout = 50;
  6547. int msix = (bp->flags & USING_MSIX_FLAG) ? 1 : 0;
  6548. if (!bp->port.pmf)
  6549. return 0;
  6550. /*
  6551. * (assumption: No Attention from MCP at this stage)
  6552. * PMF probably in the middle of TXdisable/enable transaction
  6553. * 1. Sync IRS for default SB
  6554. * 2. Sync SP queue - this guarantes us that attention handling started
  6555. * 3. Wait, that TXdisable/enable transaction completes
  6556. *
  6557. * 1+2 guranty that if DCBx attention was scheduled it already changed
  6558. * pending bit of transaction from STARTED-->TX_STOPPED, if we alredy
  6559. * received complettion for the transaction the state is TX_STOPPED.
  6560. * State will return to STARTED after completion of TX_STOPPED-->STARTED
  6561. * transaction.
  6562. */
  6563. /* make sure default SB ISR is done */
  6564. if (msix)
  6565. synchronize_irq(bp->msix_table[0].vector);
  6566. else
  6567. synchronize_irq(bp->pdev->irq);
  6568. flush_workqueue(bnx2x_wq);
  6569. while (bnx2x_func_get_state(bp, &bp->func_obj) !=
  6570. BNX2X_F_STATE_STARTED && tout--)
  6571. msleep(20);
  6572. if (bnx2x_func_get_state(bp, &bp->func_obj) !=
  6573. BNX2X_F_STATE_STARTED) {
  6574. #ifdef BNX2X_STOP_ON_ERROR
  6575. return -EBUSY;
  6576. #else
  6577. /*
  6578. * Failed to complete the transaction in a "good way"
  6579. * Force both transactions with CLR bit
  6580. */
  6581. struct bnx2x_func_state_params func_params = {0};
  6582. DP(BNX2X_MSG_SP, "Hmmm... unexpected function state! "
  6583. "Forcing STARTED-->TX_ST0PPED-->STARTED\n");
  6584. func_params.f_obj = &bp->func_obj;
  6585. __set_bit(RAMROD_DRV_CLR_ONLY,
  6586. &func_params.ramrod_flags);
  6587. /* STARTED-->TX_ST0PPED */
  6588. func_params.cmd = BNX2X_F_CMD_TX_STOP;
  6589. bnx2x_func_state_change(bp, &func_params);
  6590. /* TX_ST0PPED-->STARTED */
  6591. func_params.cmd = BNX2X_F_CMD_TX_START;
  6592. return bnx2x_func_state_change(bp, &func_params);
  6593. #endif
  6594. }
  6595. return 0;
  6596. }
  6597. void bnx2x_chip_cleanup(struct bnx2x *bp, int unload_mode)
  6598. {
  6599. int port = BP_PORT(bp);
  6600. int i, rc = 0;
  6601. u8 cos;
  6602. struct bnx2x_mcast_ramrod_params rparam = {0};
  6603. u32 reset_code;
  6604. /* Wait until tx fastpath tasks complete */
  6605. for_each_tx_queue(bp, i) {
  6606. struct bnx2x_fastpath *fp = &bp->fp[i];
  6607. for_each_cos_in_tx_queue(fp, cos)
  6608. rc = bnx2x_clean_tx_queue(bp, &fp->txdata[cos]);
  6609. #ifdef BNX2X_STOP_ON_ERROR
  6610. if (rc)
  6611. return;
  6612. #endif
  6613. }
  6614. /* Give HW time to discard old tx messages */
  6615. usleep_range(1000, 1000);
  6616. /* Clean all ETH MACs */
  6617. rc = bnx2x_del_all_macs(bp, &bp->fp[0].mac_obj, BNX2X_ETH_MAC, false);
  6618. if (rc < 0)
  6619. BNX2X_ERR("Failed to delete all ETH macs: %d\n", rc);
  6620. /* Clean up UC list */
  6621. rc = bnx2x_del_all_macs(bp, &bp->fp[0].mac_obj, BNX2X_UC_LIST_MAC,
  6622. true);
  6623. if (rc < 0)
  6624. BNX2X_ERR("Failed to schedule DEL commands for UC MACs list: "
  6625. "%d\n", rc);
  6626. /* Disable LLH */
  6627. if (!CHIP_IS_E1(bp))
  6628. REG_WR(bp, NIG_REG_LLH0_FUNC_EN + port*8, 0);
  6629. /* Set "drop all" (stop Rx).
  6630. * We need to take a netif_addr_lock() here in order to prevent
  6631. * a race between the completion code and this code.
  6632. */
  6633. netif_addr_lock_bh(bp->dev);
  6634. /* Schedule the rx_mode command */
  6635. if (test_bit(BNX2X_FILTER_RX_MODE_PENDING, &bp->sp_state))
  6636. set_bit(BNX2X_FILTER_RX_MODE_SCHED, &bp->sp_state);
  6637. else
  6638. bnx2x_set_storm_rx_mode(bp);
  6639. /* Cleanup multicast configuration */
  6640. rparam.mcast_obj = &bp->mcast_obj;
  6641. rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_DEL);
  6642. if (rc < 0)
  6643. BNX2X_ERR("Failed to send DEL multicast command: %d\n", rc);
  6644. netif_addr_unlock_bh(bp->dev);
  6645. /*
  6646. * Send the UNLOAD_REQUEST to the MCP. This will return if
  6647. * this function should perform FUNC, PORT or COMMON HW
  6648. * reset.
  6649. */
  6650. reset_code = bnx2x_send_unload_req(bp, unload_mode);
  6651. /*
  6652. * (assumption: No Attention from MCP at this stage)
  6653. * PMF probably in the middle of TXdisable/enable transaction
  6654. */
  6655. rc = bnx2x_func_wait_started(bp);
  6656. if (rc) {
  6657. BNX2X_ERR("bnx2x_func_wait_started failed\n");
  6658. #ifdef BNX2X_STOP_ON_ERROR
  6659. return;
  6660. #endif
  6661. }
  6662. /* Close multi and leading connections
  6663. * Completions for ramrods are collected in a synchronous way
  6664. */
  6665. for_each_queue(bp, i)
  6666. if (bnx2x_stop_queue(bp, i))
  6667. #ifdef BNX2X_STOP_ON_ERROR
  6668. return;
  6669. #else
  6670. goto unload_error;
  6671. #endif
  6672. /* If SP settings didn't get completed so far - something
  6673. * very wrong has happen.
  6674. */
  6675. if (!bnx2x_wait_sp_comp(bp, ~0x0UL))
  6676. BNX2X_ERR("Hmmm... Common slow path ramrods got stuck!\n");
  6677. #ifndef BNX2X_STOP_ON_ERROR
  6678. unload_error:
  6679. #endif
  6680. rc = bnx2x_func_stop(bp);
  6681. if (rc) {
  6682. BNX2X_ERR("Function stop failed!\n");
  6683. #ifdef BNX2X_STOP_ON_ERROR
  6684. return;
  6685. #endif
  6686. }
  6687. /* Disable HW interrupts, NAPI */
  6688. bnx2x_netif_stop(bp, 1);
  6689. /* Release IRQs */
  6690. bnx2x_free_irq(bp);
  6691. /* Reset the chip */
  6692. rc = bnx2x_reset_hw(bp, reset_code);
  6693. if (rc)
  6694. BNX2X_ERR("HW_RESET failed\n");
  6695. /* Report UNLOAD_DONE to MCP */
  6696. bnx2x_send_unload_done(bp);
  6697. }
  6698. void bnx2x_disable_close_the_gate(struct bnx2x *bp)
  6699. {
  6700. u32 val;
  6701. DP(NETIF_MSG_HW, "Disabling \"close the gates\"\n");
  6702. if (CHIP_IS_E1(bp)) {
  6703. int port = BP_PORT(bp);
  6704. u32 addr = port ? MISC_REG_AEU_MASK_ATTN_FUNC_1 :
  6705. MISC_REG_AEU_MASK_ATTN_FUNC_0;
  6706. val = REG_RD(bp, addr);
  6707. val &= ~(0x300);
  6708. REG_WR(bp, addr, val);
  6709. } else {
  6710. val = REG_RD(bp, MISC_REG_AEU_GENERAL_MASK);
  6711. val &= ~(MISC_AEU_GENERAL_MASK_REG_AEU_PXP_CLOSE_MASK |
  6712. MISC_AEU_GENERAL_MASK_REG_AEU_NIG_CLOSE_MASK);
  6713. REG_WR(bp, MISC_REG_AEU_GENERAL_MASK, val);
  6714. }
  6715. }
  6716. /* Close gates #2, #3 and #4: */
  6717. static void bnx2x_set_234_gates(struct bnx2x *bp, bool close)
  6718. {
  6719. u32 val;
  6720. /* Gates #2 and #4a are closed/opened for "not E1" only */
  6721. if (!CHIP_IS_E1(bp)) {
  6722. /* #4 */
  6723. REG_WR(bp, PXP_REG_HST_DISCARD_DOORBELLS, !!close);
  6724. /* #2 */
  6725. REG_WR(bp, PXP_REG_HST_DISCARD_INTERNAL_WRITES, !!close);
  6726. }
  6727. /* #3 */
  6728. if (CHIP_IS_E1x(bp)) {
  6729. /* Prevent interrupts from HC on both ports */
  6730. val = REG_RD(bp, HC_REG_CONFIG_1);
  6731. REG_WR(bp, HC_REG_CONFIG_1,
  6732. (!close) ? (val | HC_CONFIG_1_REG_BLOCK_DISABLE_1) :
  6733. (val & ~(u32)HC_CONFIG_1_REG_BLOCK_DISABLE_1));
  6734. val = REG_RD(bp, HC_REG_CONFIG_0);
  6735. REG_WR(bp, HC_REG_CONFIG_0,
  6736. (!close) ? (val | HC_CONFIG_0_REG_BLOCK_DISABLE_0) :
  6737. (val & ~(u32)HC_CONFIG_0_REG_BLOCK_DISABLE_0));
  6738. } else {
  6739. /* Prevent incomming interrupts in IGU */
  6740. val = REG_RD(bp, IGU_REG_BLOCK_CONFIGURATION);
  6741. REG_WR(bp, IGU_REG_BLOCK_CONFIGURATION,
  6742. (!close) ?
  6743. (val | IGU_BLOCK_CONFIGURATION_REG_BLOCK_ENABLE) :
  6744. (val & ~(u32)IGU_BLOCK_CONFIGURATION_REG_BLOCK_ENABLE));
  6745. }
  6746. DP(NETIF_MSG_HW, "%s gates #2, #3 and #4\n",
  6747. close ? "closing" : "opening");
  6748. mmiowb();
  6749. }
  6750. #define SHARED_MF_CLP_MAGIC 0x80000000 /* `magic' bit */
  6751. static void bnx2x_clp_reset_prep(struct bnx2x *bp, u32 *magic_val)
  6752. {
  6753. /* Do some magic... */
  6754. u32 val = MF_CFG_RD(bp, shared_mf_config.clp_mb);
  6755. *magic_val = val & SHARED_MF_CLP_MAGIC;
  6756. MF_CFG_WR(bp, shared_mf_config.clp_mb, val | SHARED_MF_CLP_MAGIC);
  6757. }
  6758. /**
  6759. * bnx2x_clp_reset_done - restore the value of the `magic' bit.
  6760. *
  6761. * @bp: driver handle
  6762. * @magic_val: old value of the `magic' bit.
  6763. */
  6764. static void bnx2x_clp_reset_done(struct bnx2x *bp, u32 magic_val)
  6765. {
  6766. /* Restore the `magic' bit value... */
  6767. u32 val = MF_CFG_RD(bp, shared_mf_config.clp_mb);
  6768. MF_CFG_WR(bp, shared_mf_config.clp_mb,
  6769. (val & (~SHARED_MF_CLP_MAGIC)) | magic_val);
  6770. }
  6771. /**
  6772. * bnx2x_reset_mcp_prep - prepare for MCP reset.
  6773. *
  6774. * @bp: driver handle
  6775. * @magic_val: old value of 'magic' bit.
  6776. *
  6777. * Takes care of CLP configurations.
  6778. */
  6779. static void bnx2x_reset_mcp_prep(struct bnx2x *bp, u32 *magic_val)
  6780. {
  6781. u32 shmem;
  6782. u32 validity_offset;
  6783. DP(NETIF_MSG_HW, "Starting\n");
  6784. /* Set `magic' bit in order to save MF config */
  6785. if (!CHIP_IS_E1(bp))
  6786. bnx2x_clp_reset_prep(bp, magic_val);
  6787. /* Get shmem offset */
  6788. shmem = REG_RD(bp, MISC_REG_SHARED_MEM_ADDR);
  6789. validity_offset = offsetof(struct shmem_region, validity_map[0]);
  6790. /* Clear validity map flags */
  6791. if (shmem > 0)
  6792. REG_WR(bp, shmem + validity_offset, 0);
  6793. }
  6794. #define MCP_TIMEOUT 5000 /* 5 seconds (in ms) */
  6795. #define MCP_ONE_TIMEOUT 100 /* 100 ms */
  6796. /**
  6797. * bnx2x_mcp_wait_one - wait for MCP_ONE_TIMEOUT
  6798. *
  6799. * @bp: driver handle
  6800. */
  6801. static inline void bnx2x_mcp_wait_one(struct bnx2x *bp)
  6802. {
  6803. /* special handling for emulation and FPGA,
  6804. wait 10 times longer */
  6805. if (CHIP_REV_IS_SLOW(bp))
  6806. msleep(MCP_ONE_TIMEOUT*10);
  6807. else
  6808. msleep(MCP_ONE_TIMEOUT);
  6809. }
  6810. /*
  6811. * initializes bp->common.shmem_base and waits for validity signature to appear
  6812. */
  6813. static int bnx2x_init_shmem(struct bnx2x *bp)
  6814. {
  6815. int cnt = 0;
  6816. u32 val = 0;
  6817. do {
  6818. bp->common.shmem_base = REG_RD(bp, MISC_REG_SHARED_MEM_ADDR);
  6819. if (bp->common.shmem_base) {
  6820. val = SHMEM_RD(bp, validity_map[BP_PORT(bp)]);
  6821. if (val & SHR_MEM_VALIDITY_MB)
  6822. return 0;
  6823. }
  6824. bnx2x_mcp_wait_one(bp);
  6825. } while (cnt++ < (MCP_TIMEOUT / MCP_ONE_TIMEOUT));
  6826. BNX2X_ERR("BAD MCP validity signature\n");
  6827. return -ENODEV;
  6828. }
  6829. static int bnx2x_reset_mcp_comp(struct bnx2x *bp, u32 magic_val)
  6830. {
  6831. int rc = bnx2x_init_shmem(bp);
  6832. /* Restore the `magic' bit value */
  6833. if (!CHIP_IS_E1(bp))
  6834. bnx2x_clp_reset_done(bp, magic_val);
  6835. return rc;
  6836. }
  6837. static void bnx2x_pxp_prep(struct bnx2x *bp)
  6838. {
  6839. if (!CHIP_IS_E1(bp)) {
  6840. REG_WR(bp, PXP2_REG_RD_START_INIT, 0);
  6841. REG_WR(bp, PXP2_REG_RQ_RBC_DONE, 0);
  6842. mmiowb();
  6843. }
  6844. }
  6845. /*
  6846. * Reset the whole chip except for:
  6847. * - PCIE core
  6848. * - PCI Glue, PSWHST, PXP/PXP2 RF (all controlled by
  6849. * one reset bit)
  6850. * - IGU
  6851. * - MISC (including AEU)
  6852. * - GRC
  6853. * - RBCN, RBCP
  6854. */
  6855. static void bnx2x_process_kill_chip_reset(struct bnx2x *bp, bool global)
  6856. {
  6857. u32 not_reset_mask1, reset_mask1, not_reset_mask2, reset_mask2;
  6858. u32 global_bits2, stay_reset2;
  6859. /*
  6860. * Bits that have to be set in reset_mask2 if we want to reset 'global'
  6861. * (per chip) blocks.
  6862. */
  6863. global_bits2 =
  6864. MISC_REGISTERS_RESET_REG_2_RST_MCP_N_RESET_CMN_CPU |
  6865. MISC_REGISTERS_RESET_REG_2_RST_MCP_N_RESET_CMN_CORE;
  6866. /* Don't reset the following blocks */
  6867. not_reset_mask1 =
  6868. MISC_REGISTERS_RESET_REG_1_RST_HC |
  6869. MISC_REGISTERS_RESET_REG_1_RST_PXPV |
  6870. MISC_REGISTERS_RESET_REG_1_RST_PXP;
  6871. not_reset_mask2 =
  6872. MISC_REGISTERS_RESET_REG_2_RST_PCI_MDIO |
  6873. MISC_REGISTERS_RESET_REG_2_RST_EMAC0_HARD_CORE |
  6874. MISC_REGISTERS_RESET_REG_2_RST_EMAC1_HARD_CORE |
  6875. MISC_REGISTERS_RESET_REG_2_RST_MISC_CORE |
  6876. MISC_REGISTERS_RESET_REG_2_RST_RBCN |
  6877. MISC_REGISTERS_RESET_REG_2_RST_GRC |
  6878. MISC_REGISTERS_RESET_REG_2_RST_MCP_N_RESET_REG_HARD_CORE |
  6879. MISC_REGISTERS_RESET_REG_2_RST_MCP_N_HARD_CORE_RST_B |
  6880. MISC_REGISTERS_RESET_REG_2_RST_ATC |
  6881. MISC_REGISTERS_RESET_REG_2_PGLC;
  6882. /*
  6883. * Keep the following blocks in reset:
  6884. * - all xxMACs are handled by the bnx2x_link code.
  6885. */
  6886. stay_reset2 =
  6887. MISC_REGISTERS_RESET_REG_2_RST_BMAC0 |
  6888. MISC_REGISTERS_RESET_REG_2_RST_BMAC1 |
  6889. MISC_REGISTERS_RESET_REG_2_RST_EMAC0 |
  6890. MISC_REGISTERS_RESET_REG_2_RST_EMAC1 |
  6891. MISC_REGISTERS_RESET_REG_2_UMAC0 |
  6892. MISC_REGISTERS_RESET_REG_2_UMAC1 |
  6893. MISC_REGISTERS_RESET_REG_2_XMAC |
  6894. MISC_REGISTERS_RESET_REG_2_XMAC_SOFT;
  6895. /* Full reset masks according to the chip */
  6896. reset_mask1 = 0xffffffff;
  6897. if (CHIP_IS_E1(bp))
  6898. reset_mask2 = 0xffff;
  6899. else if (CHIP_IS_E1H(bp))
  6900. reset_mask2 = 0x1ffff;
  6901. else if (CHIP_IS_E2(bp))
  6902. reset_mask2 = 0xfffff;
  6903. else /* CHIP_IS_E3 */
  6904. reset_mask2 = 0x3ffffff;
  6905. /* Don't reset global blocks unless we need to */
  6906. if (!global)
  6907. reset_mask2 &= ~global_bits2;
  6908. /*
  6909. * In case of attention in the QM, we need to reset PXP
  6910. * (MISC_REGISTERS_RESET_REG_2_RST_PXP_RQ_RD_WR) before QM
  6911. * because otherwise QM reset would release 'close the gates' shortly
  6912. * before resetting the PXP, then the PSWRQ would send a write
  6913. * request to PGLUE. Then when PXP is reset, PGLUE would try to
  6914. * read the payload data from PSWWR, but PSWWR would not
  6915. * respond. The write queue in PGLUE would stuck, dmae commands
  6916. * would not return. Therefore it's important to reset the second
  6917. * reset register (containing the
  6918. * MISC_REGISTERS_RESET_REG_2_RST_PXP_RQ_RD_WR bit) before the
  6919. * first one (containing the MISC_REGISTERS_RESET_REG_1_RST_QM
  6920. * bit).
  6921. */
  6922. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
  6923. reset_mask2 & (~not_reset_mask2));
  6924. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_CLEAR,
  6925. reset_mask1 & (~not_reset_mask1));
  6926. barrier();
  6927. mmiowb();
  6928. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
  6929. reset_mask2 & (~stay_reset2));
  6930. barrier();
  6931. mmiowb();
  6932. REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_SET, reset_mask1);
  6933. mmiowb();
  6934. }
  6935. /**
  6936. * bnx2x_er_poll_igu_vq - poll for pending writes bit.
  6937. * It should get cleared in no more than 1s.
  6938. *
  6939. * @bp: driver handle
  6940. *
  6941. * It should get cleared in no more than 1s. Returns 0 if
  6942. * pending writes bit gets cleared.
  6943. */
  6944. static int bnx2x_er_poll_igu_vq(struct bnx2x *bp)
  6945. {
  6946. u32 cnt = 1000;
  6947. u32 pend_bits = 0;
  6948. do {
  6949. pend_bits = REG_RD(bp, IGU_REG_PENDING_BITS_STATUS);
  6950. if (pend_bits == 0)
  6951. break;
  6952. usleep_range(1000, 1000);
  6953. } while (cnt-- > 0);
  6954. if (cnt <= 0) {
  6955. BNX2X_ERR("Still pending IGU requests pend_bits=%x!\n",
  6956. pend_bits);
  6957. return -EBUSY;
  6958. }
  6959. return 0;
  6960. }
  6961. static int bnx2x_process_kill(struct bnx2x *bp, bool global)
  6962. {
  6963. int cnt = 1000;
  6964. u32 val = 0;
  6965. u32 sr_cnt, blk_cnt, port_is_idle_0, port_is_idle_1, pgl_exp_rom2;
  6966. /* Empty the Tetris buffer, wait for 1s */
  6967. do {
  6968. sr_cnt = REG_RD(bp, PXP2_REG_RD_SR_CNT);
  6969. blk_cnt = REG_RD(bp, PXP2_REG_RD_BLK_CNT);
  6970. port_is_idle_0 = REG_RD(bp, PXP2_REG_RD_PORT_IS_IDLE_0);
  6971. port_is_idle_1 = REG_RD(bp, PXP2_REG_RD_PORT_IS_IDLE_1);
  6972. pgl_exp_rom2 = REG_RD(bp, PXP2_REG_PGL_EXP_ROM2);
  6973. if ((sr_cnt == 0x7e) && (blk_cnt == 0xa0) &&
  6974. ((port_is_idle_0 & 0x1) == 0x1) &&
  6975. ((port_is_idle_1 & 0x1) == 0x1) &&
  6976. (pgl_exp_rom2 == 0xffffffff))
  6977. break;
  6978. usleep_range(1000, 1000);
  6979. } while (cnt-- > 0);
  6980. if (cnt <= 0) {
  6981. DP(NETIF_MSG_HW, "Tetris buffer didn't get empty or there"
  6982. " are still"
  6983. " outstanding read requests after 1s!\n");
  6984. DP(NETIF_MSG_HW, "sr_cnt=0x%08x, blk_cnt=0x%08x,"
  6985. " port_is_idle_0=0x%08x,"
  6986. " port_is_idle_1=0x%08x, pgl_exp_rom2=0x%08x\n",
  6987. sr_cnt, blk_cnt, port_is_idle_0, port_is_idle_1,
  6988. pgl_exp_rom2);
  6989. return -EAGAIN;
  6990. }
  6991. barrier();
  6992. /* Close gates #2, #3 and #4 */
  6993. bnx2x_set_234_gates(bp, true);
  6994. /* Poll for IGU VQs for 57712 and newer chips */
  6995. if (!CHIP_IS_E1x(bp) && bnx2x_er_poll_igu_vq(bp))
  6996. return -EAGAIN;
  6997. /* TBD: Indicate that "process kill" is in progress to MCP */
  6998. /* Clear "unprepared" bit */
  6999. REG_WR(bp, MISC_REG_UNPREPARED, 0);
  7000. barrier();
  7001. /* Make sure all is written to the chip before the reset */
  7002. mmiowb();
  7003. /* Wait for 1ms to empty GLUE and PCI-E core queues,
  7004. * PSWHST, GRC and PSWRD Tetris buffer.
  7005. */
  7006. usleep_range(1000, 1000);
  7007. /* Prepare to chip reset: */
  7008. /* MCP */
  7009. if (global)
  7010. bnx2x_reset_mcp_prep(bp, &val);
  7011. /* PXP */
  7012. bnx2x_pxp_prep(bp);
  7013. barrier();
  7014. /* reset the chip */
  7015. bnx2x_process_kill_chip_reset(bp, global);
  7016. barrier();
  7017. /* Recover after reset: */
  7018. /* MCP */
  7019. if (global && bnx2x_reset_mcp_comp(bp, val))
  7020. return -EAGAIN;
  7021. /* TBD: Add resetting the NO_MCP mode DB here */
  7022. /* PXP */
  7023. bnx2x_pxp_prep(bp);
  7024. /* Open the gates #2, #3 and #4 */
  7025. bnx2x_set_234_gates(bp, false);
  7026. /* TBD: IGU/AEU preparation bring back the AEU/IGU to a
  7027. * reset state, re-enable attentions. */
  7028. return 0;
  7029. }
  7030. int bnx2x_leader_reset(struct bnx2x *bp)
  7031. {
  7032. int rc = 0;
  7033. bool global = bnx2x_reset_is_global(bp);
  7034. /* Try to recover after the failure */
  7035. if (bnx2x_process_kill(bp, global)) {
  7036. netdev_err(bp->dev, "Something bad had happen on engine %d! "
  7037. "Aii!\n", BP_PATH(bp));
  7038. rc = -EAGAIN;
  7039. goto exit_leader_reset;
  7040. }
  7041. /*
  7042. * Clear RESET_IN_PROGRES and RESET_GLOBAL bits and update the driver
  7043. * state.
  7044. */
  7045. bnx2x_set_reset_done(bp);
  7046. if (global)
  7047. bnx2x_clear_reset_global(bp);
  7048. exit_leader_reset:
  7049. bp->is_leader = 0;
  7050. bnx2x_release_leader_lock(bp);
  7051. smp_mb();
  7052. return rc;
  7053. }
  7054. static inline void bnx2x_recovery_failed(struct bnx2x *bp)
  7055. {
  7056. netdev_err(bp->dev, "Recovery has failed. Power cycle is needed.\n");
  7057. /* Disconnect this device */
  7058. netif_device_detach(bp->dev);
  7059. /*
  7060. * Block ifup for all function on this engine until "process kill"
  7061. * or power cycle.
  7062. */
  7063. bnx2x_set_reset_in_progress(bp);
  7064. /* Shut down the power */
  7065. bnx2x_set_power_state(bp, PCI_D3hot);
  7066. bp->recovery_state = BNX2X_RECOVERY_FAILED;
  7067. smp_mb();
  7068. }
  7069. /*
  7070. * Assumption: runs under rtnl lock. This together with the fact
  7071. * that it's called only from bnx2x_sp_rtnl() ensure that it
  7072. * will never be called when netif_running(bp->dev) is false.
  7073. */
  7074. static void bnx2x_parity_recover(struct bnx2x *bp)
  7075. {
  7076. bool global = false;
  7077. DP(NETIF_MSG_HW, "Handling parity\n");
  7078. while (1) {
  7079. switch (bp->recovery_state) {
  7080. case BNX2X_RECOVERY_INIT:
  7081. DP(NETIF_MSG_HW, "State is BNX2X_RECOVERY_INIT\n");
  7082. bnx2x_chk_parity_attn(bp, &global, false);
  7083. /* Try to get a LEADER_LOCK HW lock */
  7084. if (bnx2x_trylock_leader_lock(bp)) {
  7085. bnx2x_set_reset_in_progress(bp);
  7086. /*
  7087. * Check if there is a global attention and if
  7088. * there was a global attention, set the global
  7089. * reset bit.
  7090. */
  7091. if (global)
  7092. bnx2x_set_reset_global(bp);
  7093. bp->is_leader = 1;
  7094. }
  7095. /* Stop the driver */
  7096. /* If interface has been removed - break */
  7097. if (bnx2x_nic_unload(bp, UNLOAD_RECOVERY))
  7098. return;
  7099. bp->recovery_state = BNX2X_RECOVERY_WAIT;
  7100. /*
  7101. * Reset MCP command sequence number and MCP mail box
  7102. * sequence as we are going to reset the MCP.
  7103. */
  7104. if (global) {
  7105. bp->fw_seq = 0;
  7106. bp->fw_drv_pulse_wr_seq = 0;
  7107. }
  7108. /* Ensure "is_leader", MCP command sequence and
  7109. * "recovery_state" update values are seen on other
  7110. * CPUs.
  7111. */
  7112. smp_mb();
  7113. break;
  7114. case BNX2X_RECOVERY_WAIT:
  7115. DP(NETIF_MSG_HW, "State is BNX2X_RECOVERY_WAIT\n");
  7116. if (bp->is_leader) {
  7117. int other_engine = BP_PATH(bp) ? 0 : 1;
  7118. u32 other_load_counter =
  7119. bnx2x_get_load_cnt(bp, other_engine);
  7120. u32 load_counter =
  7121. bnx2x_get_load_cnt(bp, BP_PATH(bp));
  7122. global = bnx2x_reset_is_global(bp);
  7123. /*
  7124. * In case of a parity in a global block, let
  7125. * the first leader that performs a
  7126. * leader_reset() reset the global blocks in
  7127. * order to clear global attentions. Otherwise
  7128. * the the gates will remain closed for that
  7129. * engine.
  7130. */
  7131. if (load_counter ||
  7132. (global && other_load_counter)) {
  7133. /* Wait until all other functions get
  7134. * down.
  7135. */
  7136. schedule_delayed_work(&bp->sp_rtnl_task,
  7137. HZ/10);
  7138. return;
  7139. } else {
  7140. /* If all other functions got down -
  7141. * try to bring the chip back to
  7142. * normal. In any case it's an exit
  7143. * point for a leader.
  7144. */
  7145. if (bnx2x_leader_reset(bp)) {
  7146. bnx2x_recovery_failed(bp);
  7147. return;
  7148. }
  7149. /* If we are here, means that the
  7150. * leader has succeeded and doesn't
  7151. * want to be a leader any more. Try
  7152. * to continue as a none-leader.
  7153. */
  7154. break;
  7155. }
  7156. } else { /* non-leader */
  7157. if (!bnx2x_reset_is_done(bp, BP_PATH(bp))) {
  7158. /* Try to get a LEADER_LOCK HW lock as
  7159. * long as a former leader may have
  7160. * been unloaded by the user or
  7161. * released a leadership by another
  7162. * reason.
  7163. */
  7164. if (bnx2x_trylock_leader_lock(bp)) {
  7165. /* I'm a leader now! Restart a
  7166. * switch case.
  7167. */
  7168. bp->is_leader = 1;
  7169. break;
  7170. }
  7171. schedule_delayed_work(&bp->sp_rtnl_task,
  7172. HZ/10);
  7173. return;
  7174. } else {
  7175. /*
  7176. * If there was a global attention, wait
  7177. * for it to be cleared.
  7178. */
  7179. if (bnx2x_reset_is_global(bp)) {
  7180. schedule_delayed_work(
  7181. &bp->sp_rtnl_task,
  7182. HZ/10);
  7183. return;
  7184. }
  7185. if (bnx2x_nic_load(bp, LOAD_NORMAL))
  7186. bnx2x_recovery_failed(bp);
  7187. else {
  7188. bp->recovery_state =
  7189. BNX2X_RECOVERY_DONE;
  7190. smp_mb();
  7191. }
  7192. return;
  7193. }
  7194. }
  7195. default:
  7196. return;
  7197. }
  7198. }
  7199. }
  7200. /* bnx2x_nic_unload() flushes the bnx2x_wq, thus reset task is
  7201. * scheduled on a general queue in order to prevent a dead lock.
  7202. */
  7203. static void bnx2x_sp_rtnl_task(struct work_struct *work)
  7204. {
  7205. struct bnx2x *bp = container_of(work, struct bnx2x, sp_rtnl_task.work);
  7206. rtnl_lock();
  7207. if (!netif_running(bp->dev))
  7208. goto sp_rtnl_exit;
  7209. /* if stop on error is defined no recovery flows should be executed */
  7210. #ifdef BNX2X_STOP_ON_ERROR
  7211. BNX2X_ERR("recovery flow called but STOP_ON_ERROR defined "
  7212. "so reset not done to allow debug dump,\n"
  7213. "you will need to reboot when done\n");
  7214. goto sp_rtnl_not_reset;
  7215. #endif
  7216. if (unlikely(bp->recovery_state != BNX2X_RECOVERY_DONE)) {
  7217. /*
  7218. * Clear all pending SP commands as we are going to reset the
  7219. * function anyway.
  7220. */
  7221. bp->sp_rtnl_state = 0;
  7222. smp_mb();
  7223. bnx2x_parity_recover(bp);
  7224. goto sp_rtnl_exit;
  7225. }
  7226. if (test_and_clear_bit(BNX2X_SP_RTNL_TX_TIMEOUT, &bp->sp_rtnl_state)) {
  7227. /*
  7228. * Clear all pending SP commands as we are going to reset the
  7229. * function anyway.
  7230. */
  7231. bp->sp_rtnl_state = 0;
  7232. smp_mb();
  7233. bnx2x_nic_unload(bp, UNLOAD_NORMAL);
  7234. bnx2x_nic_load(bp, LOAD_NORMAL);
  7235. goto sp_rtnl_exit;
  7236. }
  7237. #ifdef BNX2X_STOP_ON_ERROR
  7238. sp_rtnl_not_reset:
  7239. #endif
  7240. if (test_and_clear_bit(BNX2X_SP_RTNL_SETUP_TC, &bp->sp_rtnl_state))
  7241. bnx2x_setup_tc(bp->dev, bp->dcbx_port_params.ets.num_of_cos);
  7242. /*
  7243. * in case of fan failure we need to reset id if the "stop on error"
  7244. * debug flag is set, since we trying to prevent permanent overheating
  7245. * damage
  7246. */
  7247. if (test_and_clear_bit(BNX2X_SP_RTNL_FAN_FAILURE, &bp->sp_rtnl_state)) {
  7248. DP(BNX2X_MSG_SP, "fan failure detected. Unloading driver\n");
  7249. netif_device_detach(bp->dev);
  7250. bnx2x_close(bp->dev);
  7251. }
  7252. sp_rtnl_exit:
  7253. rtnl_unlock();
  7254. }
  7255. /* end of nic load/unload */
  7256. static void bnx2x_period_task(struct work_struct *work)
  7257. {
  7258. struct bnx2x *bp = container_of(work, struct bnx2x, period_task.work);
  7259. if (!netif_running(bp->dev))
  7260. goto period_task_exit;
  7261. if (CHIP_REV_IS_SLOW(bp)) {
  7262. BNX2X_ERR("period task called on emulation, ignoring\n");
  7263. goto period_task_exit;
  7264. }
  7265. bnx2x_acquire_phy_lock(bp);
  7266. /*
  7267. * The barrier is needed to ensure the ordering between the writing to
  7268. * the bp->port.pmf in the bnx2x_nic_load() or bnx2x_pmf_update() and
  7269. * the reading here.
  7270. */
  7271. smp_mb();
  7272. if (bp->port.pmf) {
  7273. bnx2x_period_func(&bp->link_params, &bp->link_vars);
  7274. /* Re-queue task in 1 sec */
  7275. queue_delayed_work(bnx2x_wq, &bp->period_task, 1*HZ);
  7276. }
  7277. bnx2x_release_phy_lock(bp);
  7278. period_task_exit:
  7279. return;
  7280. }
  7281. /*
  7282. * Init service functions
  7283. */
  7284. static u32 bnx2x_get_pretend_reg(struct bnx2x *bp)
  7285. {
  7286. u32 base = PXP2_REG_PGL_PRETEND_FUNC_F0;
  7287. u32 stride = PXP2_REG_PGL_PRETEND_FUNC_F1 - base;
  7288. return base + (BP_ABS_FUNC(bp)) * stride;
  7289. }
  7290. static void bnx2x_undi_int_disable_e1h(struct bnx2x *bp)
  7291. {
  7292. u32 reg = bnx2x_get_pretend_reg(bp);
  7293. /* Flush all outstanding writes */
  7294. mmiowb();
  7295. /* Pretend to be function 0 */
  7296. REG_WR(bp, reg, 0);
  7297. REG_RD(bp, reg); /* Flush the GRC transaction (in the chip) */
  7298. /* From now we are in the "like-E1" mode */
  7299. bnx2x_int_disable(bp);
  7300. /* Flush all outstanding writes */
  7301. mmiowb();
  7302. /* Restore the original function */
  7303. REG_WR(bp, reg, BP_ABS_FUNC(bp));
  7304. REG_RD(bp, reg);
  7305. }
  7306. static inline void bnx2x_undi_int_disable(struct bnx2x *bp)
  7307. {
  7308. if (CHIP_IS_E1(bp))
  7309. bnx2x_int_disable(bp);
  7310. else
  7311. bnx2x_undi_int_disable_e1h(bp);
  7312. }
  7313. static void __devinit bnx2x_undi_unload(struct bnx2x *bp)
  7314. {
  7315. u32 val;
  7316. /* Check if there is any driver already loaded */
  7317. val = REG_RD(bp, MISC_REG_UNPREPARED);
  7318. if (val == 0x1) {
  7319. bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_RESET);
  7320. /*
  7321. * Check if it is the UNDI driver
  7322. * UNDI driver initializes CID offset for normal bell to 0x7
  7323. */
  7324. val = REG_RD(bp, DORQ_REG_NORM_CID_OFST);
  7325. if (val == 0x7) {
  7326. u32 reset_code = DRV_MSG_CODE_UNLOAD_REQ_WOL_DIS;
  7327. /* save our pf_num */
  7328. int orig_pf_num = bp->pf_num;
  7329. int port;
  7330. u32 swap_en, swap_val, value;
  7331. /* clear the UNDI indication */
  7332. REG_WR(bp, DORQ_REG_NORM_CID_OFST, 0);
  7333. BNX2X_DEV_INFO("UNDI is active! reset device\n");
  7334. /* try unload UNDI on port 0 */
  7335. bp->pf_num = 0;
  7336. bp->fw_seq =
  7337. (SHMEM_RD(bp, func_mb[bp->pf_num].drv_mb_header) &
  7338. DRV_MSG_SEQ_NUMBER_MASK);
  7339. reset_code = bnx2x_fw_command(bp, reset_code, 0);
  7340. /* if UNDI is loaded on the other port */
  7341. if (reset_code != FW_MSG_CODE_DRV_UNLOAD_COMMON) {
  7342. /* send "DONE" for previous unload */
  7343. bnx2x_fw_command(bp,
  7344. DRV_MSG_CODE_UNLOAD_DONE, 0);
  7345. /* unload UNDI on port 1 */
  7346. bp->pf_num = 1;
  7347. bp->fw_seq =
  7348. (SHMEM_RD(bp, func_mb[bp->pf_num].drv_mb_header) &
  7349. DRV_MSG_SEQ_NUMBER_MASK);
  7350. reset_code = DRV_MSG_CODE_UNLOAD_REQ_WOL_DIS;
  7351. bnx2x_fw_command(bp, reset_code, 0);
  7352. }
  7353. bnx2x_undi_int_disable(bp);
  7354. port = BP_PORT(bp);
  7355. /* close input traffic and wait for it */
  7356. /* Do not rcv packets to BRB */
  7357. REG_WR(bp, (port ? NIG_REG_LLH1_BRB1_DRV_MASK :
  7358. NIG_REG_LLH0_BRB1_DRV_MASK), 0x0);
  7359. /* Do not direct rcv packets that are not for MCP to
  7360. * the BRB */
  7361. REG_WR(bp, (port ? NIG_REG_LLH1_BRB1_NOT_MCP :
  7362. NIG_REG_LLH0_BRB1_NOT_MCP), 0x0);
  7363. /* clear AEU */
  7364. REG_WR(bp, (port ? MISC_REG_AEU_MASK_ATTN_FUNC_1 :
  7365. MISC_REG_AEU_MASK_ATTN_FUNC_0), 0);
  7366. msleep(10);
  7367. /* save NIG port swap info */
  7368. swap_val = REG_RD(bp, NIG_REG_PORT_SWAP);
  7369. swap_en = REG_RD(bp, NIG_REG_STRAP_OVERRIDE);
  7370. /* reset device */
  7371. REG_WR(bp,
  7372. GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_CLEAR,
  7373. 0xd3ffffff);
  7374. value = 0x1400;
  7375. if (CHIP_IS_E3(bp)) {
  7376. value |= MISC_REGISTERS_RESET_REG_2_MSTAT0;
  7377. value |= MISC_REGISTERS_RESET_REG_2_MSTAT1;
  7378. }
  7379. REG_WR(bp,
  7380. GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
  7381. value);
  7382. /* take the NIG out of reset and restore swap values */
  7383. REG_WR(bp,
  7384. GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_SET,
  7385. MISC_REGISTERS_RESET_REG_1_RST_NIG);
  7386. REG_WR(bp, NIG_REG_PORT_SWAP, swap_val);
  7387. REG_WR(bp, NIG_REG_STRAP_OVERRIDE, swap_en);
  7388. /* send unload done to the MCP */
  7389. bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_DONE, 0);
  7390. /* restore our func and fw_seq */
  7391. bp->pf_num = orig_pf_num;
  7392. bp->fw_seq =
  7393. (SHMEM_RD(bp, func_mb[bp->pf_num].drv_mb_header) &
  7394. DRV_MSG_SEQ_NUMBER_MASK);
  7395. }
  7396. /* now it's safe to release the lock */
  7397. bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_RESET);
  7398. }
  7399. }
  7400. static void __devinit bnx2x_get_common_hwinfo(struct bnx2x *bp)
  7401. {
  7402. u32 val, val2, val3, val4, id, boot_mode;
  7403. u16 pmc;
  7404. /* Get the chip revision id and number. */
  7405. /* chip num:16-31, rev:12-15, metal:4-11, bond_id:0-3 */
  7406. val = REG_RD(bp, MISC_REG_CHIP_NUM);
  7407. id = ((val & 0xffff) << 16);
  7408. val = REG_RD(bp, MISC_REG_CHIP_REV);
  7409. id |= ((val & 0xf) << 12);
  7410. val = REG_RD(bp, MISC_REG_CHIP_METAL);
  7411. id |= ((val & 0xff) << 4);
  7412. val = REG_RD(bp, MISC_REG_BOND_ID);
  7413. id |= (val & 0xf);
  7414. bp->common.chip_id = id;
  7415. /* Set doorbell size */
  7416. bp->db_size = (1 << BNX2X_DB_SHIFT);
  7417. if (!CHIP_IS_E1x(bp)) {
  7418. val = REG_RD(bp, MISC_REG_PORT4MODE_EN_OVWR);
  7419. if ((val & 1) == 0)
  7420. val = REG_RD(bp, MISC_REG_PORT4MODE_EN);
  7421. else
  7422. val = (val >> 1) & 1;
  7423. BNX2X_DEV_INFO("chip is in %s\n", val ? "4_PORT_MODE" :
  7424. "2_PORT_MODE");
  7425. bp->common.chip_port_mode = val ? CHIP_4_PORT_MODE :
  7426. CHIP_2_PORT_MODE;
  7427. if (CHIP_MODE_IS_4_PORT(bp))
  7428. bp->pfid = (bp->pf_num >> 1); /* 0..3 */
  7429. else
  7430. bp->pfid = (bp->pf_num & 0x6); /* 0, 2, 4, 6 */
  7431. } else {
  7432. bp->common.chip_port_mode = CHIP_PORT_MODE_NONE; /* N/A */
  7433. bp->pfid = bp->pf_num; /* 0..7 */
  7434. }
  7435. bp->link_params.chip_id = bp->common.chip_id;
  7436. BNX2X_DEV_INFO("chip ID is 0x%x\n", id);
  7437. val = (REG_RD(bp, 0x2874) & 0x55);
  7438. if ((bp->common.chip_id & 0x1) ||
  7439. (CHIP_IS_E1(bp) && val) || (CHIP_IS_E1H(bp) && (val == 0x55))) {
  7440. bp->flags |= ONE_PORT_FLAG;
  7441. BNX2X_DEV_INFO("single port device\n");
  7442. }
  7443. val = REG_RD(bp, MCP_REG_MCPR_NVM_CFG4);
  7444. bp->common.flash_size = (BNX2X_NVRAM_1MB_SIZE <<
  7445. (val & MCPR_NVM_CFG4_FLASH_SIZE));
  7446. BNX2X_DEV_INFO("flash_size 0x%x (%d)\n",
  7447. bp->common.flash_size, bp->common.flash_size);
  7448. bnx2x_init_shmem(bp);
  7449. bp->common.shmem2_base = REG_RD(bp, (BP_PATH(bp) ?
  7450. MISC_REG_GENERIC_CR_1 :
  7451. MISC_REG_GENERIC_CR_0));
  7452. bp->link_params.shmem_base = bp->common.shmem_base;
  7453. bp->link_params.shmem2_base = bp->common.shmem2_base;
  7454. BNX2X_DEV_INFO("shmem offset 0x%x shmem2 offset 0x%x\n",
  7455. bp->common.shmem_base, bp->common.shmem2_base);
  7456. if (!bp->common.shmem_base) {
  7457. BNX2X_DEV_INFO("MCP not active\n");
  7458. bp->flags |= NO_MCP_FLAG;
  7459. return;
  7460. }
  7461. bp->common.hw_config = SHMEM_RD(bp, dev_info.shared_hw_config.config);
  7462. BNX2X_DEV_INFO("hw_config 0x%08x\n", bp->common.hw_config);
  7463. bp->link_params.hw_led_mode = ((bp->common.hw_config &
  7464. SHARED_HW_CFG_LED_MODE_MASK) >>
  7465. SHARED_HW_CFG_LED_MODE_SHIFT);
  7466. bp->link_params.feature_config_flags = 0;
  7467. val = SHMEM_RD(bp, dev_info.shared_feature_config.config);
  7468. if (val & SHARED_FEAT_CFG_OVERRIDE_PREEMPHASIS_CFG_ENABLED)
  7469. bp->link_params.feature_config_flags |=
  7470. FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED;
  7471. else
  7472. bp->link_params.feature_config_flags &=
  7473. ~FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED;
  7474. val = SHMEM_RD(bp, dev_info.bc_rev) >> 8;
  7475. bp->common.bc_ver = val;
  7476. BNX2X_DEV_INFO("bc_ver %X\n", val);
  7477. if (val < BNX2X_BC_VER) {
  7478. /* for now only warn
  7479. * later we might need to enforce this */
  7480. BNX2X_ERR("This driver needs bc_ver %X but found %X, "
  7481. "please upgrade BC\n", BNX2X_BC_VER, val);
  7482. }
  7483. bp->link_params.feature_config_flags |=
  7484. (val >= REQ_BC_VER_4_VRFY_FIRST_PHY_OPT_MDL) ?
  7485. FEATURE_CONFIG_BC_SUPPORTS_OPT_MDL_VRFY : 0;
  7486. bp->link_params.feature_config_flags |=
  7487. (val >= REQ_BC_VER_4_VRFY_SPECIFIC_PHY_OPT_MDL) ?
  7488. FEATURE_CONFIG_BC_SUPPORTS_DUAL_PHY_OPT_MDL_VRFY : 0;
  7489. bp->link_params.feature_config_flags |=
  7490. (val >= REQ_BC_VER_4_SFP_TX_DISABLE_SUPPORTED) ?
  7491. FEATURE_CONFIG_BC_SUPPORTS_SFP_TX_DISABLED : 0;
  7492. bp->flags |= (val >= REQ_BC_VER_4_PFC_STATS_SUPPORTED) ?
  7493. BC_SUPPORTS_PFC_STATS : 0;
  7494. boot_mode = SHMEM_RD(bp,
  7495. dev_info.port_feature_config[BP_PORT(bp)].mba_config) &
  7496. PORT_FEATURE_MBA_BOOT_AGENT_TYPE_MASK;
  7497. switch (boot_mode) {
  7498. case PORT_FEATURE_MBA_BOOT_AGENT_TYPE_PXE:
  7499. bp->common.boot_mode = FEATURE_ETH_BOOTMODE_PXE;
  7500. break;
  7501. case PORT_FEATURE_MBA_BOOT_AGENT_TYPE_ISCSIB:
  7502. bp->common.boot_mode = FEATURE_ETH_BOOTMODE_ISCSI;
  7503. break;
  7504. case PORT_FEATURE_MBA_BOOT_AGENT_TYPE_FCOE_BOOT:
  7505. bp->common.boot_mode = FEATURE_ETH_BOOTMODE_FCOE;
  7506. break;
  7507. case PORT_FEATURE_MBA_BOOT_AGENT_TYPE_NONE:
  7508. bp->common.boot_mode = FEATURE_ETH_BOOTMODE_NONE;
  7509. break;
  7510. }
  7511. pci_read_config_word(bp->pdev, bp->pm_cap + PCI_PM_PMC, &pmc);
  7512. bp->flags |= (pmc & PCI_PM_CAP_PME_D3cold) ? 0 : NO_WOL_FLAG;
  7513. BNX2X_DEV_INFO("%sWoL capable\n",
  7514. (bp->flags & NO_WOL_FLAG) ? "not " : "");
  7515. val = SHMEM_RD(bp, dev_info.shared_hw_config.part_num);
  7516. val2 = SHMEM_RD(bp, dev_info.shared_hw_config.part_num[4]);
  7517. val3 = SHMEM_RD(bp, dev_info.shared_hw_config.part_num[8]);
  7518. val4 = SHMEM_RD(bp, dev_info.shared_hw_config.part_num[12]);
  7519. dev_info(&bp->pdev->dev, "part number %X-%X-%X-%X\n",
  7520. val, val2, val3, val4);
  7521. }
  7522. #define IGU_FID(val) GET_FIELD((val), IGU_REG_MAPPING_MEMORY_FID)
  7523. #define IGU_VEC(val) GET_FIELD((val), IGU_REG_MAPPING_MEMORY_VECTOR)
  7524. static void __devinit bnx2x_get_igu_cam_info(struct bnx2x *bp)
  7525. {
  7526. int pfid = BP_FUNC(bp);
  7527. int igu_sb_id;
  7528. u32 val;
  7529. u8 fid, igu_sb_cnt = 0;
  7530. bp->igu_base_sb = 0xff;
  7531. if (CHIP_INT_MODE_IS_BC(bp)) {
  7532. int vn = BP_VN(bp);
  7533. igu_sb_cnt = bp->igu_sb_cnt;
  7534. bp->igu_base_sb = (CHIP_MODE_IS_4_PORT(bp) ? pfid : vn) *
  7535. FP_SB_MAX_E1x;
  7536. bp->igu_dsb_id = E1HVN_MAX * FP_SB_MAX_E1x +
  7537. (CHIP_MODE_IS_4_PORT(bp) ? pfid : vn);
  7538. return;
  7539. }
  7540. /* IGU in normal mode - read CAM */
  7541. for (igu_sb_id = 0; igu_sb_id < IGU_REG_MAPPING_MEMORY_SIZE;
  7542. igu_sb_id++) {
  7543. val = REG_RD(bp, IGU_REG_MAPPING_MEMORY + igu_sb_id * 4);
  7544. if (!(val & IGU_REG_MAPPING_MEMORY_VALID))
  7545. continue;
  7546. fid = IGU_FID(val);
  7547. if ((fid & IGU_FID_ENCODE_IS_PF)) {
  7548. if ((fid & IGU_FID_PF_NUM_MASK) != pfid)
  7549. continue;
  7550. if (IGU_VEC(val) == 0)
  7551. /* default status block */
  7552. bp->igu_dsb_id = igu_sb_id;
  7553. else {
  7554. if (bp->igu_base_sb == 0xff)
  7555. bp->igu_base_sb = igu_sb_id;
  7556. igu_sb_cnt++;
  7557. }
  7558. }
  7559. }
  7560. #ifdef CONFIG_PCI_MSI
  7561. /*
  7562. * It's expected that number of CAM entries for this functions is equal
  7563. * to the number evaluated based on the MSI-X table size. We want a
  7564. * harsh warning if these values are different!
  7565. */
  7566. WARN_ON(bp->igu_sb_cnt != igu_sb_cnt);
  7567. #endif
  7568. if (igu_sb_cnt == 0)
  7569. BNX2X_ERR("CAM configuration error\n");
  7570. }
  7571. static void __devinit bnx2x_link_settings_supported(struct bnx2x *bp,
  7572. u32 switch_cfg)
  7573. {
  7574. int cfg_size = 0, idx, port = BP_PORT(bp);
  7575. /* Aggregation of supported attributes of all external phys */
  7576. bp->port.supported[0] = 0;
  7577. bp->port.supported[1] = 0;
  7578. switch (bp->link_params.num_phys) {
  7579. case 1:
  7580. bp->port.supported[0] = bp->link_params.phy[INT_PHY].supported;
  7581. cfg_size = 1;
  7582. break;
  7583. case 2:
  7584. bp->port.supported[0] = bp->link_params.phy[EXT_PHY1].supported;
  7585. cfg_size = 1;
  7586. break;
  7587. case 3:
  7588. if (bp->link_params.multi_phy_config &
  7589. PORT_HW_CFG_PHY_SWAPPED_ENABLED) {
  7590. bp->port.supported[1] =
  7591. bp->link_params.phy[EXT_PHY1].supported;
  7592. bp->port.supported[0] =
  7593. bp->link_params.phy[EXT_PHY2].supported;
  7594. } else {
  7595. bp->port.supported[0] =
  7596. bp->link_params.phy[EXT_PHY1].supported;
  7597. bp->port.supported[1] =
  7598. bp->link_params.phy[EXT_PHY2].supported;
  7599. }
  7600. cfg_size = 2;
  7601. break;
  7602. }
  7603. if (!(bp->port.supported[0] || bp->port.supported[1])) {
  7604. BNX2X_ERR("NVRAM config error. BAD phy config."
  7605. "PHY1 config 0x%x, PHY2 config 0x%x\n",
  7606. SHMEM_RD(bp,
  7607. dev_info.port_hw_config[port].external_phy_config),
  7608. SHMEM_RD(bp,
  7609. dev_info.port_hw_config[port].external_phy_config2));
  7610. return;
  7611. }
  7612. if (CHIP_IS_E3(bp))
  7613. bp->port.phy_addr = REG_RD(bp, MISC_REG_WC0_CTRL_PHY_ADDR);
  7614. else {
  7615. switch (switch_cfg) {
  7616. case SWITCH_CFG_1G:
  7617. bp->port.phy_addr = REG_RD(
  7618. bp, NIG_REG_SERDES0_CTRL_PHY_ADDR + port*0x10);
  7619. break;
  7620. case SWITCH_CFG_10G:
  7621. bp->port.phy_addr = REG_RD(
  7622. bp, NIG_REG_XGXS0_CTRL_PHY_ADDR + port*0x18);
  7623. break;
  7624. default:
  7625. BNX2X_ERR("BAD switch_cfg link_config 0x%x\n",
  7626. bp->port.link_config[0]);
  7627. return;
  7628. }
  7629. }
  7630. BNX2X_DEV_INFO("phy_addr 0x%x\n", bp->port.phy_addr);
  7631. /* mask what we support according to speed_cap_mask per configuration */
  7632. for (idx = 0; idx < cfg_size; idx++) {
  7633. if (!(bp->link_params.speed_cap_mask[idx] &
  7634. PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_HALF))
  7635. bp->port.supported[idx] &= ~SUPPORTED_10baseT_Half;
  7636. if (!(bp->link_params.speed_cap_mask[idx] &
  7637. PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_FULL))
  7638. bp->port.supported[idx] &= ~SUPPORTED_10baseT_Full;
  7639. if (!(bp->link_params.speed_cap_mask[idx] &
  7640. PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_HALF))
  7641. bp->port.supported[idx] &= ~SUPPORTED_100baseT_Half;
  7642. if (!(bp->link_params.speed_cap_mask[idx] &
  7643. PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_FULL))
  7644. bp->port.supported[idx] &= ~SUPPORTED_100baseT_Full;
  7645. if (!(bp->link_params.speed_cap_mask[idx] &
  7646. PORT_HW_CFG_SPEED_CAPABILITY_D0_1G))
  7647. bp->port.supported[idx] &= ~(SUPPORTED_1000baseT_Half |
  7648. SUPPORTED_1000baseT_Full);
  7649. if (!(bp->link_params.speed_cap_mask[idx] &
  7650. PORT_HW_CFG_SPEED_CAPABILITY_D0_2_5G))
  7651. bp->port.supported[idx] &= ~SUPPORTED_2500baseX_Full;
  7652. if (!(bp->link_params.speed_cap_mask[idx] &
  7653. PORT_HW_CFG_SPEED_CAPABILITY_D0_10G))
  7654. bp->port.supported[idx] &= ~SUPPORTED_10000baseT_Full;
  7655. }
  7656. BNX2X_DEV_INFO("supported 0x%x 0x%x\n", bp->port.supported[0],
  7657. bp->port.supported[1]);
  7658. }
  7659. static void __devinit bnx2x_link_settings_requested(struct bnx2x *bp)
  7660. {
  7661. u32 link_config, idx, cfg_size = 0;
  7662. bp->port.advertising[0] = 0;
  7663. bp->port.advertising[1] = 0;
  7664. switch (bp->link_params.num_phys) {
  7665. case 1:
  7666. case 2:
  7667. cfg_size = 1;
  7668. break;
  7669. case 3:
  7670. cfg_size = 2;
  7671. break;
  7672. }
  7673. for (idx = 0; idx < cfg_size; idx++) {
  7674. bp->link_params.req_duplex[idx] = DUPLEX_FULL;
  7675. link_config = bp->port.link_config[idx];
  7676. switch (link_config & PORT_FEATURE_LINK_SPEED_MASK) {
  7677. case PORT_FEATURE_LINK_SPEED_AUTO:
  7678. if (bp->port.supported[idx] & SUPPORTED_Autoneg) {
  7679. bp->link_params.req_line_speed[idx] =
  7680. SPEED_AUTO_NEG;
  7681. bp->port.advertising[idx] |=
  7682. bp->port.supported[idx];
  7683. } else {
  7684. /* force 10G, no AN */
  7685. bp->link_params.req_line_speed[idx] =
  7686. SPEED_10000;
  7687. bp->port.advertising[idx] |=
  7688. (ADVERTISED_10000baseT_Full |
  7689. ADVERTISED_FIBRE);
  7690. continue;
  7691. }
  7692. break;
  7693. case PORT_FEATURE_LINK_SPEED_10M_FULL:
  7694. if (bp->port.supported[idx] & SUPPORTED_10baseT_Full) {
  7695. bp->link_params.req_line_speed[idx] =
  7696. SPEED_10;
  7697. bp->port.advertising[idx] |=
  7698. (ADVERTISED_10baseT_Full |
  7699. ADVERTISED_TP);
  7700. } else {
  7701. BNX2X_ERR("NVRAM config error. "
  7702. "Invalid link_config 0x%x"
  7703. " speed_cap_mask 0x%x\n",
  7704. link_config,
  7705. bp->link_params.speed_cap_mask[idx]);
  7706. return;
  7707. }
  7708. break;
  7709. case PORT_FEATURE_LINK_SPEED_10M_HALF:
  7710. if (bp->port.supported[idx] & SUPPORTED_10baseT_Half) {
  7711. bp->link_params.req_line_speed[idx] =
  7712. SPEED_10;
  7713. bp->link_params.req_duplex[idx] =
  7714. DUPLEX_HALF;
  7715. bp->port.advertising[idx] |=
  7716. (ADVERTISED_10baseT_Half |
  7717. ADVERTISED_TP);
  7718. } else {
  7719. BNX2X_ERR("NVRAM config error. "
  7720. "Invalid link_config 0x%x"
  7721. " speed_cap_mask 0x%x\n",
  7722. link_config,
  7723. bp->link_params.speed_cap_mask[idx]);
  7724. return;
  7725. }
  7726. break;
  7727. case PORT_FEATURE_LINK_SPEED_100M_FULL:
  7728. if (bp->port.supported[idx] &
  7729. SUPPORTED_100baseT_Full) {
  7730. bp->link_params.req_line_speed[idx] =
  7731. SPEED_100;
  7732. bp->port.advertising[idx] |=
  7733. (ADVERTISED_100baseT_Full |
  7734. ADVERTISED_TP);
  7735. } else {
  7736. BNX2X_ERR("NVRAM config error. "
  7737. "Invalid link_config 0x%x"
  7738. " speed_cap_mask 0x%x\n",
  7739. link_config,
  7740. bp->link_params.speed_cap_mask[idx]);
  7741. return;
  7742. }
  7743. break;
  7744. case PORT_FEATURE_LINK_SPEED_100M_HALF:
  7745. if (bp->port.supported[idx] &
  7746. SUPPORTED_100baseT_Half) {
  7747. bp->link_params.req_line_speed[idx] =
  7748. SPEED_100;
  7749. bp->link_params.req_duplex[idx] =
  7750. DUPLEX_HALF;
  7751. bp->port.advertising[idx] |=
  7752. (ADVERTISED_100baseT_Half |
  7753. ADVERTISED_TP);
  7754. } else {
  7755. BNX2X_ERR("NVRAM config error. "
  7756. "Invalid link_config 0x%x"
  7757. " speed_cap_mask 0x%x\n",
  7758. link_config,
  7759. bp->link_params.speed_cap_mask[idx]);
  7760. return;
  7761. }
  7762. break;
  7763. case PORT_FEATURE_LINK_SPEED_1G:
  7764. if (bp->port.supported[idx] &
  7765. SUPPORTED_1000baseT_Full) {
  7766. bp->link_params.req_line_speed[idx] =
  7767. SPEED_1000;
  7768. bp->port.advertising[idx] |=
  7769. (ADVERTISED_1000baseT_Full |
  7770. ADVERTISED_TP);
  7771. } else {
  7772. BNX2X_ERR("NVRAM config error. "
  7773. "Invalid link_config 0x%x"
  7774. " speed_cap_mask 0x%x\n",
  7775. link_config,
  7776. bp->link_params.speed_cap_mask[idx]);
  7777. return;
  7778. }
  7779. break;
  7780. case PORT_FEATURE_LINK_SPEED_2_5G:
  7781. if (bp->port.supported[idx] &
  7782. SUPPORTED_2500baseX_Full) {
  7783. bp->link_params.req_line_speed[idx] =
  7784. SPEED_2500;
  7785. bp->port.advertising[idx] |=
  7786. (ADVERTISED_2500baseX_Full |
  7787. ADVERTISED_TP);
  7788. } else {
  7789. BNX2X_ERR("NVRAM config error. "
  7790. "Invalid link_config 0x%x"
  7791. " speed_cap_mask 0x%x\n",
  7792. link_config,
  7793. bp->link_params.speed_cap_mask[idx]);
  7794. return;
  7795. }
  7796. break;
  7797. case PORT_FEATURE_LINK_SPEED_10G_CX4:
  7798. if (bp->port.supported[idx] &
  7799. SUPPORTED_10000baseT_Full) {
  7800. bp->link_params.req_line_speed[idx] =
  7801. SPEED_10000;
  7802. bp->port.advertising[idx] |=
  7803. (ADVERTISED_10000baseT_Full |
  7804. ADVERTISED_FIBRE);
  7805. } else {
  7806. BNX2X_ERR("NVRAM config error. "
  7807. "Invalid link_config 0x%x"
  7808. " speed_cap_mask 0x%x\n",
  7809. link_config,
  7810. bp->link_params.speed_cap_mask[idx]);
  7811. return;
  7812. }
  7813. break;
  7814. case PORT_FEATURE_LINK_SPEED_20G:
  7815. bp->link_params.req_line_speed[idx] = SPEED_20000;
  7816. break;
  7817. default:
  7818. BNX2X_ERR("NVRAM config error. "
  7819. "BAD link speed link_config 0x%x\n",
  7820. link_config);
  7821. bp->link_params.req_line_speed[idx] =
  7822. SPEED_AUTO_NEG;
  7823. bp->port.advertising[idx] =
  7824. bp->port.supported[idx];
  7825. break;
  7826. }
  7827. bp->link_params.req_flow_ctrl[idx] = (link_config &
  7828. PORT_FEATURE_FLOW_CONTROL_MASK);
  7829. if ((bp->link_params.req_flow_ctrl[idx] ==
  7830. BNX2X_FLOW_CTRL_AUTO) &&
  7831. !(bp->port.supported[idx] & SUPPORTED_Autoneg)) {
  7832. bp->link_params.req_flow_ctrl[idx] =
  7833. BNX2X_FLOW_CTRL_NONE;
  7834. }
  7835. BNX2X_DEV_INFO("req_line_speed %d req_duplex %d req_flow_ctrl"
  7836. " 0x%x advertising 0x%x\n",
  7837. bp->link_params.req_line_speed[idx],
  7838. bp->link_params.req_duplex[idx],
  7839. bp->link_params.req_flow_ctrl[idx],
  7840. bp->port.advertising[idx]);
  7841. }
  7842. }
  7843. static void __devinit bnx2x_set_mac_buf(u8 *mac_buf, u32 mac_lo, u16 mac_hi)
  7844. {
  7845. mac_hi = cpu_to_be16(mac_hi);
  7846. mac_lo = cpu_to_be32(mac_lo);
  7847. memcpy(mac_buf, &mac_hi, sizeof(mac_hi));
  7848. memcpy(mac_buf + sizeof(mac_hi), &mac_lo, sizeof(mac_lo));
  7849. }
  7850. static void __devinit bnx2x_get_port_hwinfo(struct bnx2x *bp)
  7851. {
  7852. int port = BP_PORT(bp);
  7853. u32 config;
  7854. u32 ext_phy_type, ext_phy_config;
  7855. bp->link_params.bp = bp;
  7856. bp->link_params.port = port;
  7857. bp->link_params.lane_config =
  7858. SHMEM_RD(bp, dev_info.port_hw_config[port].lane_config);
  7859. bp->link_params.speed_cap_mask[0] =
  7860. SHMEM_RD(bp,
  7861. dev_info.port_hw_config[port].speed_capability_mask);
  7862. bp->link_params.speed_cap_mask[1] =
  7863. SHMEM_RD(bp,
  7864. dev_info.port_hw_config[port].speed_capability_mask2);
  7865. bp->port.link_config[0] =
  7866. SHMEM_RD(bp, dev_info.port_feature_config[port].link_config);
  7867. bp->port.link_config[1] =
  7868. SHMEM_RD(bp, dev_info.port_feature_config[port].link_config2);
  7869. bp->link_params.multi_phy_config =
  7870. SHMEM_RD(bp, dev_info.port_hw_config[port].multi_phy_config);
  7871. /* If the device is capable of WoL, set the default state according
  7872. * to the HW
  7873. */
  7874. config = SHMEM_RD(bp, dev_info.port_feature_config[port].config);
  7875. bp->wol = (!(bp->flags & NO_WOL_FLAG) &&
  7876. (config & PORT_FEATURE_WOL_ENABLED));
  7877. BNX2X_DEV_INFO("lane_config 0x%08x "
  7878. "speed_cap_mask0 0x%08x link_config0 0x%08x\n",
  7879. bp->link_params.lane_config,
  7880. bp->link_params.speed_cap_mask[0],
  7881. bp->port.link_config[0]);
  7882. bp->link_params.switch_cfg = (bp->port.link_config[0] &
  7883. PORT_FEATURE_CONNECTED_SWITCH_MASK);
  7884. bnx2x_phy_probe(&bp->link_params);
  7885. bnx2x_link_settings_supported(bp, bp->link_params.switch_cfg);
  7886. bnx2x_link_settings_requested(bp);
  7887. /*
  7888. * If connected directly, work with the internal PHY, otherwise, work
  7889. * with the external PHY
  7890. */
  7891. ext_phy_config =
  7892. SHMEM_RD(bp,
  7893. dev_info.port_hw_config[port].external_phy_config);
  7894. ext_phy_type = XGXS_EXT_PHY_TYPE(ext_phy_config);
  7895. if (ext_phy_type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT)
  7896. bp->mdio.prtad = bp->port.phy_addr;
  7897. else if ((ext_phy_type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE) &&
  7898. (ext_phy_type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_NOT_CONN))
  7899. bp->mdio.prtad =
  7900. XGXS_EXT_PHY_ADDR(ext_phy_config);
  7901. /*
  7902. * Check if hw lock is required to access MDC/MDIO bus to the PHY(s)
  7903. * In MF mode, it is set to cover self test cases
  7904. */
  7905. if (IS_MF(bp))
  7906. bp->port.need_hw_lock = 1;
  7907. else
  7908. bp->port.need_hw_lock = bnx2x_hw_lock_required(bp,
  7909. bp->common.shmem_base,
  7910. bp->common.shmem2_base);
  7911. }
  7912. void bnx2x_get_iscsi_info(struct bnx2x *bp)
  7913. {
  7914. #ifdef BCM_CNIC
  7915. int port = BP_PORT(bp);
  7916. u32 max_iscsi_conn = FW_ENCODE_32BIT_PATTERN ^ SHMEM_RD(bp,
  7917. drv_lic_key[port].max_iscsi_conn);
  7918. /* Get the number of maximum allowed iSCSI connections */
  7919. bp->cnic_eth_dev.max_iscsi_conn =
  7920. (max_iscsi_conn & BNX2X_MAX_ISCSI_INIT_CONN_MASK) >>
  7921. BNX2X_MAX_ISCSI_INIT_CONN_SHIFT;
  7922. BNX2X_DEV_INFO("max_iscsi_conn 0x%x\n",
  7923. bp->cnic_eth_dev.max_iscsi_conn);
  7924. /*
  7925. * If maximum allowed number of connections is zero -
  7926. * disable the feature.
  7927. */
  7928. if (!bp->cnic_eth_dev.max_iscsi_conn)
  7929. bp->flags |= NO_ISCSI_FLAG;
  7930. #else
  7931. bp->flags |= NO_ISCSI_FLAG;
  7932. #endif
  7933. }
  7934. static void __devinit bnx2x_get_fcoe_info(struct bnx2x *bp)
  7935. {
  7936. #ifdef BCM_CNIC
  7937. int port = BP_PORT(bp);
  7938. int func = BP_ABS_FUNC(bp);
  7939. u32 max_fcoe_conn = FW_ENCODE_32BIT_PATTERN ^ SHMEM_RD(bp,
  7940. drv_lic_key[port].max_fcoe_conn);
  7941. /* Get the number of maximum allowed FCoE connections */
  7942. bp->cnic_eth_dev.max_fcoe_conn =
  7943. (max_fcoe_conn & BNX2X_MAX_FCOE_INIT_CONN_MASK) >>
  7944. BNX2X_MAX_FCOE_INIT_CONN_SHIFT;
  7945. /* Read the WWN: */
  7946. if (!IS_MF(bp)) {
  7947. /* Port info */
  7948. bp->cnic_eth_dev.fcoe_wwn_port_name_hi =
  7949. SHMEM_RD(bp,
  7950. dev_info.port_hw_config[port].
  7951. fcoe_wwn_port_name_upper);
  7952. bp->cnic_eth_dev.fcoe_wwn_port_name_lo =
  7953. SHMEM_RD(bp,
  7954. dev_info.port_hw_config[port].
  7955. fcoe_wwn_port_name_lower);
  7956. /* Node info */
  7957. bp->cnic_eth_dev.fcoe_wwn_node_name_hi =
  7958. SHMEM_RD(bp,
  7959. dev_info.port_hw_config[port].
  7960. fcoe_wwn_node_name_upper);
  7961. bp->cnic_eth_dev.fcoe_wwn_node_name_lo =
  7962. SHMEM_RD(bp,
  7963. dev_info.port_hw_config[port].
  7964. fcoe_wwn_node_name_lower);
  7965. } else if (!IS_MF_SD(bp)) {
  7966. u32 cfg = MF_CFG_RD(bp, func_ext_config[func].func_cfg);
  7967. /*
  7968. * Read the WWN info only if the FCoE feature is enabled for
  7969. * this function.
  7970. */
  7971. if (cfg & MACP_FUNC_CFG_FLAGS_FCOE_OFFLOAD) {
  7972. /* Port info */
  7973. bp->cnic_eth_dev.fcoe_wwn_port_name_hi =
  7974. MF_CFG_RD(bp, func_ext_config[func].
  7975. fcoe_wwn_port_name_upper);
  7976. bp->cnic_eth_dev.fcoe_wwn_port_name_lo =
  7977. MF_CFG_RD(bp, func_ext_config[func].
  7978. fcoe_wwn_port_name_lower);
  7979. /* Node info */
  7980. bp->cnic_eth_dev.fcoe_wwn_node_name_hi =
  7981. MF_CFG_RD(bp, func_ext_config[func].
  7982. fcoe_wwn_node_name_upper);
  7983. bp->cnic_eth_dev.fcoe_wwn_node_name_lo =
  7984. MF_CFG_RD(bp, func_ext_config[func].
  7985. fcoe_wwn_node_name_lower);
  7986. }
  7987. }
  7988. BNX2X_DEV_INFO("max_fcoe_conn 0x%x\n", bp->cnic_eth_dev.max_fcoe_conn);
  7989. /*
  7990. * If maximum allowed number of connections is zero -
  7991. * disable the feature.
  7992. */
  7993. if (!bp->cnic_eth_dev.max_fcoe_conn)
  7994. bp->flags |= NO_FCOE_FLAG;
  7995. #else
  7996. bp->flags |= NO_FCOE_FLAG;
  7997. #endif
  7998. }
  7999. static void __devinit bnx2x_get_cnic_info(struct bnx2x *bp)
  8000. {
  8001. /*
  8002. * iSCSI may be dynamically disabled but reading
  8003. * info here we will decrease memory usage by driver
  8004. * if the feature is disabled for good
  8005. */
  8006. bnx2x_get_iscsi_info(bp);
  8007. bnx2x_get_fcoe_info(bp);
  8008. }
  8009. static void __devinit bnx2x_get_mac_hwinfo(struct bnx2x *bp)
  8010. {
  8011. u32 val, val2;
  8012. int func = BP_ABS_FUNC(bp);
  8013. int port = BP_PORT(bp);
  8014. #ifdef BCM_CNIC
  8015. u8 *iscsi_mac = bp->cnic_eth_dev.iscsi_mac;
  8016. u8 *fip_mac = bp->fip_mac;
  8017. #endif
  8018. /* Zero primary MAC configuration */
  8019. memset(bp->dev->dev_addr, 0, ETH_ALEN);
  8020. if (BP_NOMCP(bp)) {
  8021. BNX2X_ERROR("warning: random MAC workaround active\n");
  8022. random_ether_addr(bp->dev->dev_addr);
  8023. } else if (IS_MF(bp)) {
  8024. val2 = MF_CFG_RD(bp, func_mf_config[func].mac_upper);
  8025. val = MF_CFG_RD(bp, func_mf_config[func].mac_lower);
  8026. if ((val2 != FUNC_MF_CFG_UPPERMAC_DEFAULT) &&
  8027. (val != FUNC_MF_CFG_LOWERMAC_DEFAULT))
  8028. bnx2x_set_mac_buf(bp->dev->dev_addr, val, val2);
  8029. #ifdef BCM_CNIC
  8030. /*
  8031. * iSCSI and FCoE NPAR MACs: if there is no either iSCSI or
  8032. * FCoE MAC then the appropriate feature should be disabled.
  8033. */
  8034. if (IS_MF_SI(bp)) {
  8035. u32 cfg = MF_CFG_RD(bp, func_ext_config[func].func_cfg);
  8036. if (cfg & MACP_FUNC_CFG_FLAGS_ISCSI_OFFLOAD) {
  8037. val2 = MF_CFG_RD(bp, func_ext_config[func].
  8038. iscsi_mac_addr_upper);
  8039. val = MF_CFG_RD(bp, func_ext_config[func].
  8040. iscsi_mac_addr_lower);
  8041. bnx2x_set_mac_buf(iscsi_mac, val, val2);
  8042. BNX2X_DEV_INFO("Read iSCSI MAC: %pM\n",
  8043. iscsi_mac);
  8044. } else
  8045. bp->flags |= NO_ISCSI_OOO_FLAG | NO_ISCSI_FLAG;
  8046. if (cfg & MACP_FUNC_CFG_FLAGS_FCOE_OFFLOAD) {
  8047. val2 = MF_CFG_RD(bp, func_ext_config[func].
  8048. fcoe_mac_addr_upper);
  8049. val = MF_CFG_RD(bp, func_ext_config[func].
  8050. fcoe_mac_addr_lower);
  8051. bnx2x_set_mac_buf(fip_mac, val, val2);
  8052. BNX2X_DEV_INFO("Read FCoE L2 MAC: %pM\n",
  8053. fip_mac);
  8054. } else
  8055. bp->flags |= NO_FCOE_FLAG;
  8056. } else { /* SD mode */
  8057. if (BNX2X_IS_MF_PROTOCOL_ISCSI(bp)) {
  8058. /* use primary mac as iscsi mac */
  8059. memcpy(iscsi_mac, bp->dev->dev_addr, ETH_ALEN);
  8060. /* Zero primary MAC configuration */
  8061. memset(bp->dev->dev_addr, 0, ETH_ALEN);
  8062. BNX2X_DEV_INFO("SD ISCSI MODE\n");
  8063. BNX2X_DEV_INFO("Read iSCSI MAC: %pM\n",
  8064. iscsi_mac);
  8065. }
  8066. }
  8067. #endif
  8068. } else {
  8069. /* in SF read MACs from port configuration */
  8070. val2 = SHMEM_RD(bp, dev_info.port_hw_config[port].mac_upper);
  8071. val = SHMEM_RD(bp, dev_info.port_hw_config[port].mac_lower);
  8072. bnx2x_set_mac_buf(bp->dev->dev_addr, val, val2);
  8073. #ifdef BCM_CNIC
  8074. val2 = SHMEM_RD(bp, dev_info.port_hw_config[port].
  8075. iscsi_mac_upper);
  8076. val = SHMEM_RD(bp, dev_info.port_hw_config[port].
  8077. iscsi_mac_lower);
  8078. bnx2x_set_mac_buf(iscsi_mac, val, val2);
  8079. val2 = SHMEM_RD(bp, dev_info.port_hw_config[port].
  8080. fcoe_fip_mac_upper);
  8081. val = SHMEM_RD(bp, dev_info.port_hw_config[port].
  8082. fcoe_fip_mac_lower);
  8083. bnx2x_set_mac_buf(fip_mac, val, val2);
  8084. #endif
  8085. }
  8086. memcpy(bp->link_params.mac_addr, bp->dev->dev_addr, ETH_ALEN);
  8087. memcpy(bp->dev->perm_addr, bp->dev->dev_addr, ETH_ALEN);
  8088. #ifdef BCM_CNIC
  8089. /* Set the FCoE MAC in MF_SD mode */
  8090. if (!CHIP_IS_E1x(bp) && IS_MF_SD(bp))
  8091. memcpy(fip_mac, bp->dev->dev_addr, ETH_ALEN);
  8092. /* Disable iSCSI if MAC configuration is
  8093. * invalid.
  8094. */
  8095. if (!is_valid_ether_addr(iscsi_mac)) {
  8096. bp->flags |= NO_ISCSI_FLAG;
  8097. memset(iscsi_mac, 0, ETH_ALEN);
  8098. }
  8099. /* Disable FCoE if MAC configuration is
  8100. * invalid.
  8101. */
  8102. if (!is_valid_ether_addr(fip_mac)) {
  8103. bp->flags |= NO_FCOE_FLAG;
  8104. memset(bp->fip_mac, 0, ETH_ALEN);
  8105. }
  8106. #endif
  8107. if (!bnx2x_is_valid_ether_addr(bp, bp->dev->dev_addr))
  8108. dev_err(&bp->pdev->dev,
  8109. "bad Ethernet MAC address configuration: "
  8110. "%pM, change it manually before bringing up "
  8111. "the appropriate network interface\n",
  8112. bp->dev->dev_addr);
  8113. }
  8114. static int __devinit bnx2x_get_hwinfo(struct bnx2x *bp)
  8115. {
  8116. int /*abs*/func = BP_ABS_FUNC(bp);
  8117. int vn;
  8118. u32 val = 0;
  8119. int rc = 0;
  8120. bnx2x_get_common_hwinfo(bp);
  8121. /*
  8122. * initialize IGU parameters
  8123. */
  8124. if (CHIP_IS_E1x(bp)) {
  8125. bp->common.int_block = INT_BLOCK_HC;
  8126. bp->igu_dsb_id = DEF_SB_IGU_ID;
  8127. bp->igu_base_sb = 0;
  8128. } else {
  8129. bp->common.int_block = INT_BLOCK_IGU;
  8130. /* do not allow device reset during IGU info preocessing */
  8131. bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_RESET);
  8132. val = REG_RD(bp, IGU_REG_BLOCK_CONFIGURATION);
  8133. if (val & IGU_BLOCK_CONFIGURATION_REG_BACKWARD_COMP_EN) {
  8134. int tout = 5000;
  8135. BNX2X_DEV_INFO("FORCING Normal Mode\n");
  8136. val &= ~(IGU_BLOCK_CONFIGURATION_REG_BACKWARD_COMP_EN);
  8137. REG_WR(bp, IGU_REG_BLOCK_CONFIGURATION, val);
  8138. REG_WR(bp, IGU_REG_RESET_MEMORIES, 0x7f);
  8139. while (tout && REG_RD(bp, IGU_REG_RESET_MEMORIES)) {
  8140. tout--;
  8141. usleep_range(1000, 1000);
  8142. }
  8143. if (REG_RD(bp, IGU_REG_RESET_MEMORIES)) {
  8144. dev_err(&bp->pdev->dev,
  8145. "FORCING Normal Mode failed!!!\n");
  8146. return -EPERM;
  8147. }
  8148. }
  8149. if (val & IGU_BLOCK_CONFIGURATION_REG_BACKWARD_COMP_EN) {
  8150. BNX2X_DEV_INFO("IGU Backward Compatible Mode\n");
  8151. bp->common.int_block |= INT_BLOCK_MODE_BW_COMP;
  8152. } else
  8153. BNX2X_DEV_INFO("IGU Normal Mode\n");
  8154. bnx2x_get_igu_cam_info(bp);
  8155. bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_RESET);
  8156. }
  8157. /*
  8158. * set base FW non-default (fast path) status block id, this value is
  8159. * used to initialize the fw_sb_id saved on the fp/queue structure to
  8160. * determine the id used by the FW.
  8161. */
  8162. if (CHIP_IS_E1x(bp))
  8163. bp->base_fw_ndsb = BP_PORT(bp) * FP_SB_MAX_E1x + BP_L_ID(bp);
  8164. else /*
  8165. * 57712 - we currently use one FW SB per IGU SB (Rx and Tx of
  8166. * the same queue are indicated on the same IGU SB). So we prefer
  8167. * FW and IGU SBs to be the same value.
  8168. */
  8169. bp->base_fw_ndsb = bp->igu_base_sb;
  8170. BNX2X_DEV_INFO("igu_dsb_id %d igu_base_sb %d igu_sb_cnt %d\n"
  8171. "base_fw_ndsb %d\n", bp->igu_dsb_id, bp->igu_base_sb,
  8172. bp->igu_sb_cnt, bp->base_fw_ndsb);
  8173. /*
  8174. * Initialize MF configuration
  8175. */
  8176. bp->mf_ov = 0;
  8177. bp->mf_mode = 0;
  8178. vn = BP_VN(bp);
  8179. if (!CHIP_IS_E1(bp) && !BP_NOMCP(bp)) {
  8180. BNX2X_DEV_INFO("shmem2base 0x%x, size %d, mfcfg offset %d\n",
  8181. bp->common.shmem2_base, SHMEM2_RD(bp, size),
  8182. (u32)offsetof(struct shmem2_region, mf_cfg_addr));
  8183. if (SHMEM2_HAS(bp, mf_cfg_addr))
  8184. bp->common.mf_cfg_base = SHMEM2_RD(bp, mf_cfg_addr);
  8185. else
  8186. bp->common.mf_cfg_base = bp->common.shmem_base +
  8187. offsetof(struct shmem_region, func_mb) +
  8188. E1H_FUNC_MAX * sizeof(struct drv_func_mb);
  8189. /*
  8190. * get mf configuration:
  8191. * 1. existence of MF configuration
  8192. * 2. MAC address must be legal (check only upper bytes)
  8193. * for Switch-Independent mode;
  8194. * OVLAN must be legal for Switch-Dependent mode
  8195. * 3. SF_MODE configures specific MF mode
  8196. */
  8197. if (bp->common.mf_cfg_base != SHMEM_MF_CFG_ADDR_NONE) {
  8198. /* get mf configuration */
  8199. val = SHMEM_RD(bp,
  8200. dev_info.shared_feature_config.config);
  8201. val &= SHARED_FEAT_CFG_FORCE_SF_MODE_MASK;
  8202. switch (val) {
  8203. case SHARED_FEAT_CFG_FORCE_SF_MODE_SWITCH_INDEPT:
  8204. val = MF_CFG_RD(bp, func_mf_config[func].
  8205. mac_upper);
  8206. /* check for legal mac (upper bytes)*/
  8207. if (val != 0xffff) {
  8208. bp->mf_mode = MULTI_FUNCTION_SI;
  8209. bp->mf_config[vn] = MF_CFG_RD(bp,
  8210. func_mf_config[func].config);
  8211. } else
  8212. BNX2X_DEV_INFO("illegal MAC address "
  8213. "for SI\n");
  8214. break;
  8215. case SHARED_FEAT_CFG_FORCE_SF_MODE_MF_ALLOWED:
  8216. /* get OV configuration */
  8217. val = MF_CFG_RD(bp,
  8218. func_mf_config[FUNC_0].e1hov_tag);
  8219. val &= FUNC_MF_CFG_E1HOV_TAG_MASK;
  8220. if (val != FUNC_MF_CFG_E1HOV_TAG_DEFAULT) {
  8221. bp->mf_mode = MULTI_FUNCTION_SD;
  8222. bp->mf_config[vn] = MF_CFG_RD(bp,
  8223. func_mf_config[func].config);
  8224. } else
  8225. BNX2X_DEV_INFO("illegal OV for SD\n");
  8226. break;
  8227. default:
  8228. /* Unknown configuration: reset mf_config */
  8229. bp->mf_config[vn] = 0;
  8230. BNX2X_DEV_INFO("unkown MF mode 0x%x\n", val);
  8231. }
  8232. }
  8233. BNX2X_DEV_INFO("%s function mode\n",
  8234. IS_MF(bp) ? "multi" : "single");
  8235. switch (bp->mf_mode) {
  8236. case MULTI_FUNCTION_SD:
  8237. val = MF_CFG_RD(bp, func_mf_config[func].e1hov_tag) &
  8238. FUNC_MF_CFG_E1HOV_TAG_MASK;
  8239. if (val != FUNC_MF_CFG_E1HOV_TAG_DEFAULT) {
  8240. bp->mf_ov = val;
  8241. bp->path_has_ovlan = true;
  8242. BNX2X_DEV_INFO("MF OV for func %d is %d "
  8243. "(0x%04x)\n", func, bp->mf_ov,
  8244. bp->mf_ov);
  8245. } else {
  8246. dev_err(&bp->pdev->dev,
  8247. "No valid MF OV for func %d, "
  8248. "aborting\n", func);
  8249. return -EPERM;
  8250. }
  8251. break;
  8252. case MULTI_FUNCTION_SI:
  8253. BNX2X_DEV_INFO("func %d is in MF "
  8254. "switch-independent mode\n", func);
  8255. break;
  8256. default:
  8257. if (vn) {
  8258. dev_err(&bp->pdev->dev,
  8259. "VN %d is in a single function mode, "
  8260. "aborting\n", vn);
  8261. return -EPERM;
  8262. }
  8263. break;
  8264. }
  8265. /* check if other port on the path needs ovlan:
  8266. * Since MF configuration is shared between ports
  8267. * Possible mixed modes are only
  8268. * {SF, SI} {SF, SD} {SD, SF} {SI, SF}
  8269. */
  8270. if (CHIP_MODE_IS_4_PORT(bp) &&
  8271. !bp->path_has_ovlan &&
  8272. !IS_MF(bp) &&
  8273. bp->common.mf_cfg_base != SHMEM_MF_CFG_ADDR_NONE) {
  8274. u8 other_port = !BP_PORT(bp);
  8275. u8 other_func = BP_PATH(bp) + 2*other_port;
  8276. val = MF_CFG_RD(bp,
  8277. func_mf_config[other_func].e1hov_tag);
  8278. if (val != FUNC_MF_CFG_E1HOV_TAG_DEFAULT)
  8279. bp->path_has_ovlan = true;
  8280. }
  8281. }
  8282. /* adjust igu_sb_cnt to MF for E1x */
  8283. if (CHIP_IS_E1x(bp) && IS_MF(bp))
  8284. bp->igu_sb_cnt /= E1HVN_MAX;
  8285. /* port info */
  8286. bnx2x_get_port_hwinfo(bp);
  8287. /* Get MAC addresses */
  8288. bnx2x_get_mac_hwinfo(bp);
  8289. bnx2x_get_cnic_info(bp);
  8290. /* Get current FW pulse sequence */
  8291. if (!BP_NOMCP(bp)) {
  8292. int mb_idx = BP_FW_MB_IDX(bp);
  8293. bp->fw_drv_pulse_wr_seq =
  8294. (SHMEM_RD(bp, func_mb[mb_idx].drv_pulse_mb) &
  8295. DRV_PULSE_SEQ_MASK);
  8296. BNX2X_DEV_INFO("drv_pulse 0x%x\n", bp->fw_drv_pulse_wr_seq);
  8297. }
  8298. return rc;
  8299. }
  8300. static void __devinit bnx2x_read_fwinfo(struct bnx2x *bp)
  8301. {
  8302. int cnt, i, block_end, rodi;
  8303. char vpd_start[BNX2X_VPD_LEN+1];
  8304. char str_id_reg[VENDOR_ID_LEN+1];
  8305. char str_id_cap[VENDOR_ID_LEN+1];
  8306. char *vpd_data;
  8307. char *vpd_extended_data = NULL;
  8308. u8 len;
  8309. cnt = pci_read_vpd(bp->pdev, 0, BNX2X_VPD_LEN, vpd_start);
  8310. memset(bp->fw_ver, 0, sizeof(bp->fw_ver));
  8311. if (cnt < BNX2X_VPD_LEN)
  8312. goto out_not_found;
  8313. /* VPD RO tag should be first tag after identifier string, hence
  8314. * we should be able to find it in first BNX2X_VPD_LEN chars
  8315. */
  8316. i = pci_vpd_find_tag(vpd_start, 0, BNX2X_VPD_LEN,
  8317. PCI_VPD_LRDT_RO_DATA);
  8318. if (i < 0)
  8319. goto out_not_found;
  8320. block_end = i + PCI_VPD_LRDT_TAG_SIZE +
  8321. pci_vpd_lrdt_size(&vpd_start[i]);
  8322. i += PCI_VPD_LRDT_TAG_SIZE;
  8323. if (block_end > BNX2X_VPD_LEN) {
  8324. vpd_extended_data = kmalloc(block_end, GFP_KERNEL);
  8325. if (vpd_extended_data == NULL)
  8326. goto out_not_found;
  8327. /* read rest of vpd image into vpd_extended_data */
  8328. memcpy(vpd_extended_data, vpd_start, BNX2X_VPD_LEN);
  8329. cnt = pci_read_vpd(bp->pdev, BNX2X_VPD_LEN,
  8330. block_end - BNX2X_VPD_LEN,
  8331. vpd_extended_data + BNX2X_VPD_LEN);
  8332. if (cnt < (block_end - BNX2X_VPD_LEN))
  8333. goto out_not_found;
  8334. vpd_data = vpd_extended_data;
  8335. } else
  8336. vpd_data = vpd_start;
  8337. /* now vpd_data holds full vpd content in both cases */
  8338. rodi = pci_vpd_find_info_keyword(vpd_data, i, block_end,
  8339. PCI_VPD_RO_KEYWORD_MFR_ID);
  8340. if (rodi < 0)
  8341. goto out_not_found;
  8342. len = pci_vpd_info_field_size(&vpd_data[rodi]);
  8343. if (len != VENDOR_ID_LEN)
  8344. goto out_not_found;
  8345. rodi += PCI_VPD_INFO_FLD_HDR_SIZE;
  8346. /* vendor specific info */
  8347. snprintf(str_id_reg, VENDOR_ID_LEN + 1, "%04x", PCI_VENDOR_ID_DELL);
  8348. snprintf(str_id_cap, VENDOR_ID_LEN + 1, "%04X", PCI_VENDOR_ID_DELL);
  8349. if (!strncmp(str_id_reg, &vpd_data[rodi], VENDOR_ID_LEN) ||
  8350. !strncmp(str_id_cap, &vpd_data[rodi], VENDOR_ID_LEN)) {
  8351. rodi = pci_vpd_find_info_keyword(vpd_data, i, block_end,
  8352. PCI_VPD_RO_KEYWORD_VENDOR0);
  8353. if (rodi >= 0) {
  8354. len = pci_vpd_info_field_size(&vpd_data[rodi]);
  8355. rodi += PCI_VPD_INFO_FLD_HDR_SIZE;
  8356. if (len < 32 && (len + rodi) <= BNX2X_VPD_LEN) {
  8357. memcpy(bp->fw_ver, &vpd_data[rodi], len);
  8358. bp->fw_ver[len] = ' ';
  8359. }
  8360. }
  8361. kfree(vpd_extended_data);
  8362. return;
  8363. }
  8364. out_not_found:
  8365. kfree(vpd_extended_data);
  8366. return;
  8367. }
  8368. static void __devinit bnx2x_set_modes_bitmap(struct bnx2x *bp)
  8369. {
  8370. u32 flags = 0;
  8371. if (CHIP_REV_IS_FPGA(bp))
  8372. SET_FLAGS(flags, MODE_FPGA);
  8373. else if (CHIP_REV_IS_EMUL(bp))
  8374. SET_FLAGS(flags, MODE_EMUL);
  8375. else
  8376. SET_FLAGS(flags, MODE_ASIC);
  8377. if (CHIP_MODE_IS_4_PORT(bp))
  8378. SET_FLAGS(flags, MODE_PORT4);
  8379. else
  8380. SET_FLAGS(flags, MODE_PORT2);
  8381. if (CHIP_IS_E2(bp))
  8382. SET_FLAGS(flags, MODE_E2);
  8383. else if (CHIP_IS_E3(bp)) {
  8384. SET_FLAGS(flags, MODE_E3);
  8385. if (CHIP_REV(bp) == CHIP_REV_Ax)
  8386. SET_FLAGS(flags, MODE_E3_A0);
  8387. else /*if (CHIP_REV(bp) == CHIP_REV_Bx)*/
  8388. SET_FLAGS(flags, MODE_E3_B0 | MODE_COS3);
  8389. }
  8390. if (IS_MF(bp)) {
  8391. SET_FLAGS(flags, MODE_MF);
  8392. switch (bp->mf_mode) {
  8393. case MULTI_FUNCTION_SD:
  8394. SET_FLAGS(flags, MODE_MF_SD);
  8395. break;
  8396. case MULTI_FUNCTION_SI:
  8397. SET_FLAGS(flags, MODE_MF_SI);
  8398. break;
  8399. }
  8400. } else
  8401. SET_FLAGS(flags, MODE_SF);
  8402. #if defined(__LITTLE_ENDIAN)
  8403. SET_FLAGS(flags, MODE_LITTLE_ENDIAN);
  8404. #else /*(__BIG_ENDIAN)*/
  8405. SET_FLAGS(flags, MODE_BIG_ENDIAN);
  8406. #endif
  8407. INIT_MODE_FLAGS(bp) = flags;
  8408. }
  8409. static int __devinit bnx2x_init_bp(struct bnx2x *bp)
  8410. {
  8411. int func;
  8412. int timer_interval;
  8413. int rc;
  8414. mutex_init(&bp->port.phy_mutex);
  8415. mutex_init(&bp->fw_mb_mutex);
  8416. spin_lock_init(&bp->stats_lock);
  8417. #ifdef BCM_CNIC
  8418. mutex_init(&bp->cnic_mutex);
  8419. #endif
  8420. INIT_DELAYED_WORK(&bp->sp_task, bnx2x_sp_task);
  8421. INIT_DELAYED_WORK(&bp->sp_rtnl_task, bnx2x_sp_rtnl_task);
  8422. INIT_DELAYED_WORK(&bp->period_task, bnx2x_period_task);
  8423. rc = bnx2x_get_hwinfo(bp);
  8424. if (rc)
  8425. return rc;
  8426. bnx2x_set_modes_bitmap(bp);
  8427. rc = bnx2x_alloc_mem_bp(bp);
  8428. if (rc)
  8429. return rc;
  8430. bnx2x_read_fwinfo(bp);
  8431. func = BP_FUNC(bp);
  8432. /* need to reset chip if undi was active */
  8433. if (!BP_NOMCP(bp))
  8434. bnx2x_undi_unload(bp);
  8435. /* init fw_seq after undi_unload! */
  8436. if (!BP_NOMCP(bp)) {
  8437. bp->fw_seq =
  8438. (SHMEM_RD(bp, func_mb[BP_FW_MB_IDX(bp)].drv_mb_header) &
  8439. DRV_MSG_SEQ_NUMBER_MASK);
  8440. BNX2X_DEV_INFO("fw_seq 0x%08x\n", bp->fw_seq);
  8441. }
  8442. if (CHIP_REV_IS_FPGA(bp))
  8443. dev_err(&bp->pdev->dev, "FPGA detected\n");
  8444. if (BP_NOMCP(bp) && (func == 0))
  8445. dev_err(&bp->pdev->dev, "MCP disabled, "
  8446. "must load devices in order!\n");
  8447. bp->multi_mode = multi_mode;
  8448. bp->disable_tpa = disable_tpa;
  8449. #ifdef BCM_CNIC
  8450. bp->disable_tpa |= IS_MF_ISCSI_SD(bp);
  8451. #endif
  8452. /* Set TPA flags */
  8453. if (bp->disable_tpa) {
  8454. bp->flags &= ~TPA_ENABLE_FLAG;
  8455. bp->dev->features &= ~NETIF_F_LRO;
  8456. } else {
  8457. bp->flags |= TPA_ENABLE_FLAG;
  8458. bp->dev->features |= NETIF_F_LRO;
  8459. }
  8460. if (CHIP_IS_E1(bp))
  8461. bp->dropless_fc = 0;
  8462. else
  8463. bp->dropless_fc = dropless_fc;
  8464. bp->mrrs = mrrs;
  8465. bp->tx_ring_size = MAX_TX_AVAIL;
  8466. /* make sure that the numbers are in the right granularity */
  8467. bp->tx_ticks = (50 / BNX2X_BTR) * BNX2X_BTR;
  8468. bp->rx_ticks = (25 / BNX2X_BTR) * BNX2X_BTR;
  8469. timer_interval = (CHIP_REV_IS_SLOW(bp) ? 5*HZ : HZ);
  8470. bp->current_interval = (poll ? poll : timer_interval);
  8471. init_timer(&bp->timer);
  8472. bp->timer.expires = jiffies + bp->current_interval;
  8473. bp->timer.data = (unsigned long) bp;
  8474. bp->timer.function = bnx2x_timer;
  8475. bnx2x_dcbx_set_state(bp, true, BNX2X_DCBX_ENABLED_ON_NEG_ON);
  8476. bnx2x_dcbx_init_params(bp);
  8477. #ifdef BCM_CNIC
  8478. if (CHIP_IS_E1x(bp))
  8479. bp->cnic_base_cl_id = FP_SB_MAX_E1x;
  8480. else
  8481. bp->cnic_base_cl_id = FP_SB_MAX_E2;
  8482. #endif
  8483. /* multiple tx priority */
  8484. if (CHIP_IS_E1x(bp))
  8485. bp->max_cos = BNX2X_MULTI_TX_COS_E1X;
  8486. if (CHIP_IS_E2(bp) || CHIP_IS_E3A0(bp))
  8487. bp->max_cos = BNX2X_MULTI_TX_COS_E2_E3A0;
  8488. if (CHIP_IS_E3B0(bp))
  8489. bp->max_cos = BNX2X_MULTI_TX_COS_E3B0;
  8490. return rc;
  8491. }
  8492. /****************************************************************************
  8493. * General service functions
  8494. ****************************************************************************/
  8495. /*
  8496. * net_device service functions
  8497. */
  8498. /* called with rtnl_lock */
  8499. static int bnx2x_open(struct net_device *dev)
  8500. {
  8501. struct bnx2x *bp = netdev_priv(dev);
  8502. bool global = false;
  8503. int other_engine = BP_PATH(bp) ? 0 : 1;
  8504. u32 other_load_counter, load_counter;
  8505. netif_carrier_off(dev);
  8506. bnx2x_set_power_state(bp, PCI_D0);
  8507. other_load_counter = bnx2x_get_load_cnt(bp, other_engine);
  8508. load_counter = bnx2x_get_load_cnt(bp, BP_PATH(bp));
  8509. /*
  8510. * If parity had happen during the unload, then attentions
  8511. * and/or RECOVERY_IN_PROGRES may still be set. In this case we
  8512. * want the first function loaded on the current engine to
  8513. * complete the recovery.
  8514. */
  8515. if (!bnx2x_reset_is_done(bp, BP_PATH(bp)) ||
  8516. bnx2x_chk_parity_attn(bp, &global, true))
  8517. do {
  8518. /*
  8519. * If there are attentions and they are in a global
  8520. * blocks, set the GLOBAL_RESET bit regardless whether
  8521. * it will be this function that will complete the
  8522. * recovery or not.
  8523. */
  8524. if (global)
  8525. bnx2x_set_reset_global(bp);
  8526. /*
  8527. * Only the first function on the current engine should
  8528. * try to recover in open. In case of attentions in
  8529. * global blocks only the first in the chip should try
  8530. * to recover.
  8531. */
  8532. if ((!load_counter &&
  8533. (!global || !other_load_counter)) &&
  8534. bnx2x_trylock_leader_lock(bp) &&
  8535. !bnx2x_leader_reset(bp)) {
  8536. netdev_info(bp->dev, "Recovered in open\n");
  8537. break;
  8538. }
  8539. /* recovery has failed... */
  8540. bnx2x_set_power_state(bp, PCI_D3hot);
  8541. bp->recovery_state = BNX2X_RECOVERY_FAILED;
  8542. netdev_err(bp->dev, "Recovery flow hasn't been properly"
  8543. " completed yet. Try again later. If u still see this"
  8544. " message after a few retries then power cycle is"
  8545. " required.\n");
  8546. return -EAGAIN;
  8547. } while (0);
  8548. bp->recovery_state = BNX2X_RECOVERY_DONE;
  8549. return bnx2x_nic_load(bp, LOAD_OPEN);
  8550. }
  8551. /* called with rtnl_lock */
  8552. int bnx2x_close(struct net_device *dev)
  8553. {
  8554. struct bnx2x *bp = netdev_priv(dev);
  8555. /* Unload the driver, release IRQs */
  8556. bnx2x_nic_unload(bp, UNLOAD_CLOSE);
  8557. /* Power off */
  8558. bnx2x_set_power_state(bp, PCI_D3hot);
  8559. return 0;
  8560. }
  8561. static inline int bnx2x_init_mcast_macs_list(struct bnx2x *bp,
  8562. struct bnx2x_mcast_ramrod_params *p)
  8563. {
  8564. int mc_count = netdev_mc_count(bp->dev);
  8565. struct bnx2x_mcast_list_elem *mc_mac =
  8566. kzalloc(sizeof(*mc_mac) * mc_count, GFP_ATOMIC);
  8567. struct netdev_hw_addr *ha;
  8568. if (!mc_mac)
  8569. return -ENOMEM;
  8570. INIT_LIST_HEAD(&p->mcast_list);
  8571. netdev_for_each_mc_addr(ha, bp->dev) {
  8572. mc_mac->mac = bnx2x_mc_addr(ha);
  8573. list_add_tail(&mc_mac->link, &p->mcast_list);
  8574. mc_mac++;
  8575. }
  8576. p->mcast_list_len = mc_count;
  8577. return 0;
  8578. }
  8579. static inline void bnx2x_free_mcast_macs_list(
  8580. struct bnx2x_mcast_ramrod_params *p)
  8581. {
  8582. struct bnx2x_mcast_list_elem *mc_mac =
  8583. list_first_entry(&p->mcast_list, struct bnx2x_mcast_list_elem,
  8584. link);
  8585. WARN_ON(!mc_mac);
  8586. kfree(mc_mac);
  8587. }
  8588. /**
  8589. * bnx2x_set_uc_list - configure a new unicast MACs list.
  8590. *
  8591. * @bp: driver handle
  8592. *
  8593. * We will use zero (0) as a MAC type for these MACs.
  8594. */
  8595. static inline int bnx2x_set_uc_list(struct bnx2x *bp)
  8596. {
  8597. int rc;
  8598. struct net_device *dev = bp->dev;
  8599. struct netdev_hw_addr *ha;
  8600. struct bnx2x_vlan_mac_obj *mac_obj = &bp->fp->mac_obj;
  8601. unsigned long ramrod_flags = 0;
  8602. /* First schedule a cleanup up of old configuration */
  8603. rc = bnx2x_del_all_macs(bp, mac_obj, BNX2X_UC_LIST_MAC, false);
  8604. if (rc < 0) {
  8605. BNX2X_ERR("Failed to schedule DELETE operations: %d\n", rc);
  8606. return rc;
  8607. }
  8608. netdev_for_each_uc_addr(ha, dev) {
  8609. rc = bnx2x_set_mac_one(bp, bnx2x_uc_addr(ha), mac_obj, true,
  8610. BNX2X_UC_LIST_MAC, &ramrod_flags);
  8611. if (rc < 0) {
  8612. BNX2X_ERR("Failed to schedule ADD operations: %d\n",
  8613. rc);
  8614. return rc;
  8615. }
  8616. }
  8617. /* Execute the pending commands */
  8618. __set_bit(RAMROD_CONT, &ramrod_flags);
  8619. return bnx2x_set_mac_one(bp, NULL, mac_obj, false /* don't care */,
  8620. BNX2X_UC_LIST_MAC, &ramrod_flags);
  8621. }
  8622. static inline int bnx2x_set_mc_list(struct bnx2x *bp)
  8623. {
  8624. struct net_device *dev = bp->dev;
  8625. struct bnx2x_mcast_ramrod_params rparam = {0};
  8626. int rc = 0;
  8627. rparam.mcast_obj = &bp->mcast_obj;
  8628. /* first, clear all configured multicast MACs */
  8629. rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_DEL);
  8630. if (rc < 0) {
  8631. BNX2X_ERR("Failed to clear multicast "
  8632. "configuration: %d\n", rc);
  8633. return rc;
  8634. }
  8635. /* then, configure a new MACs list */
  8636. if (netdev_mc_count(dev)) {
  8637. rc = bnx2x_init_mcast_macs_list(bp, &rparam);
  8638. if (rc) {
  8639. BNX2X_ERR("Failed to create multicast MACs "
  8640. "list: %d\n", rc);
  8641. return rc;
  8642. }
  8643. /* Now add the new MACs */
  8644. rc = bnx2x_config_mcast(bp, &rparam,
  8645. BNX2X_MCAST_CMD_ADD);
  8646. if (rc < 0)
  8647. BNX2X_ERR("Failed to set a new multicast "
  8648. "configuration: %d\n", rc);
  8649. bnx2x_free_mcast_macs_list(&rparam);
  8650. }
  8651. return rc;
  8652. }
  8653. /* If bp->state is OPEN, should be called with netif_addr_lock_bh() */
  8654. void bnx2x_set_rx_mode(struct net_device *dev)
  8655. {
  8656. struct bnx2x *bp = netdev_priv(dev);
  8657. u32 rx_mode = BNX2X_RX_MODE_NORMAL;
  8658. if (bp->state != BNX2X_STATE_OPEN) {
  8659. DP(NETIF_MSG_IFUP, "state is %x, returning\n", bp->state);
  8660. return;
  8661. }
  8662. DP(NETIF_MSG_IFUP, "dev->flags = %x\n", bp->dev->flags);
  8663. if (dev->flags & IFF_PROMISC)
  8664. rx_mode = BNX2X_RX_MODE_PROMISC;
  8665. else if ((dev->flags & IFF_ALLMULTI) ||
  8666. ((netdev_mc_count(dev) > BNX2X_MAX_MULTICAST) &&
  8667. CHIP_IS_E1(bp)))
  8668. rx_mode = BNX2X_RX_MODE_ALLMULTI;
  8669. else {
  8670. /* some multicasts */
  8671. if (bnx2x_set_mc_list(bp) < 0)
  8672. rx_mode = BNX2X_RX_MODE_ALLMULTI;
  8673. if (bnx2x_set_uc_list(bp) < 0)
  8674. rx_mode = BNX2X_RX_MODE_PROMISC;
  8675. }
  8676. bp->rx_mode = rx_mode;
  8677. #ifdef BCM_CNIC
  8678. /* handle ISCSI SD mode */
  8679. if (IS_MF_ISCSI_SD(bp))
  8680. bp->rx_mode = BNX2X_RX_MODE_NONE;
  8681. #endif
  8682. /* Schedule the rx_mode command */
  8683. if (test_bit(BNX2X_FILTER_RX_MODE_PENDING, &bp->sp_state)) {
  8684. set_bit(BNX2X_FILTER_RX_MODE_SCHED, &bp->sp_state);
  8685. return;
  8686. }
  8687. bnx2x_set_storm_rx_mode(bp);
  8688. }
  8689. /* called with rtnl_lock */
  8690. static int bnx2x_mdio_read(struct net_device *netdev, int prtad,
  8691. int devad, u16 addr)
  8692. {
  8693. struct bnx2x *bp = netdev_priv(netdev);
  8694. u16 value;
  8695. int rc;
  8696. DP(NETIF_MSG_LINK, "mdio_read: prtad 0x%x, devad 0x%x, addr 0x%x\n",
  8697. prtad, devad, addr);
  8698. /* The HW expects different devad if CL22 is used */
  8699. devad = (devad == MDIO_DEVAD_NONE) ? DEFAULT_PHY_DEV_ADDR : devad;
  8700. bnx2x_acquire_phy_lock(bp);
  8701. rc = bnx2x_phy_read(&bp->link_params, prtad, devad, addr, &value);
  8702. bnx2x_release_phy_lock(bp);
  8703. DP(NETIF_MSG_LINK, "mdio_read_val 0x%x rc = 0x%x\n", value, rc);
  8704. if (!rc)
  8705. rc = value;
  8706. return rc;
  8707. }
  8708. /* called with rtnl_lock */
  8709. static int bnx2x_mdio_write(struct net_device *netdev, int prtad, int devad,
  8710. u16 addr, u16 value)
  8711. {
  8712. struct bnx2x *bp = netdev_priv(netdev);
  8713. int rc;
  8714. DP(NETIF_MSG_LINK, "mdio_write: prtad 0x%x, devad 0x%x, addr 0x%x,"
  8715. " value 0x%x\n", prtad, devad, addr, value);
  8716. /* The HW expects different devad if CL22 is used */
  8717. devad = (devad == MDIO_DEVAD_NONE) ? DEFAULT_PHY_DEV_ADDR : devad;
  8718. bnx2x_acquire_phy_lock(bp);
  8719. rc = bnx2x_phy_write(&bp->link_params, prtad, devad, addr, value);
  8720. bnx2x_release_phy_lock(bp);
  8721. return rc;
  8722. }
  8723. /* called with rtnl_lock */
  8724. static int bnx2x_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
  8725. {
  8726. struct bnx2x *bp = netdev_priv(dev);
  8727. struct mii_ioctl_data *mdio = if_mii(ifr);
  8728. DP(NETIF_MSG_LINK, "ioctl: phy id 0x%x, reg 0x%x, val_in 0x%x\n",
  8729. mdio->phy_id, mdio->reg_num, mdio->val_in);
  8730. if (!netif_running(dev))
  8731. return -EAGAIN;
  8732. return mdio_mii_ioctl(&bp->mdio, mdio, cmd);
  8733. }
  8734. #ifdef CONFIG_NET_POLL_CONTROLLER
  8735. static void poll_bnx2x(struct net_device *dev)
  8736. {
  8737. struct bnx2x *bp = netdev_priv(dev);
  8738. disable_irq(bp->pdev->irq);
  8739. bnx2x_interrupt(bp->pdev->irq, dev);
  8740. enable_irq(bp->pdev->irq);
  8741. }
  8742. #endif
  8743. static int bnx2x_validate_addr(struct net_device *dev)
  8744. {
  8745. struct bnx2x *bp = netdev_priv(dev);
  8746. if (!bnx2x_is_valid_ether_addr(bp, dev->dev_addr))
  8747. return -EADDRNOTAVAIL;
  8748. return 0;
  8749. }
  8750. static const struct net_device_ops bnx2x_netdev_ops = {
  8751. .ndo_open = bnx2x_open,
  8752. .ndo_stop = bnx2x_close,
  8753. .ndo_start_xmit = bnx2x_start_xmit,
  8754. .ndo_select_queue = bnx2x_select_queue,
  8755. .ndo_set_rx_mode = bnx2x_set_rx_mode,
  8756. .ndo_set_mac_address = bnx2x_change_mac_addr,
  8757. .ndo_validate_addr = bnx2x_validate_addr,
  8758. .ndo_do_ioctl = bnx2x_ioctl,
  8759. .ndo_change_mtu = bnx2x_change_mtu,
  8760. .ndo_fix_features = bnx2x_fix_features,
  8761. .ndo_set_features = bnx2x_set_features,
  8762. .ndo_tx_timeout = bnx2x_tx_timeout,
  8763. #ifdef CONFIG_NET_POLL_CONTROLLER
  8764. .ndo_poll_controller = poll_bnx2x,
  8765. #endif
  8766. .ndo_setup_tc = bnx2x_setup_tc,
  8767. #if defined(NETDEV_FCOE_WWNN) && defined(BCM_CNIC)
  8768. .ndo_fcoe_get_wwn = bnx2x_fcoe_get_wwn,
  8769. #endif
  8770. };
  8771. static inline int bnx2x_set_coherency_mask(struct bnx2x *bp)
  8772. {
  8773. struct device *dev = &bp->pdev->dev;
  8774. if (dma_set_mask(dev, DMA_BIT_MASK(64)) == 0) {
  8775. bp->flags |= USING_DAC_FLAG;
  8776. if (dma_set_coherent_mask(dev, DMA_BIT_MASK(64)) != 0) {
  8777. dev_err(dev, "dma_set_coherent_mask failed, "
  8778. "aborting\n");
  8779. return -EIO;
  8780. }
  8781. } else if (dma_set_mask(dev, DMA_BIT_MASK(32)) != 0) {
  8782. dev_err(dev, "System does not support DMA, aborting\n");
  8783. return -EIO;
  8784. }
  8785. return 0;
  8786. }
  8787. static int __devinit bnx2x_init_dev(struct pci_dev *pdev,
  8788. struct net_device *dev,
  8789. unsigned long board_type)
  8790. {
  8791. struct bnx2x *bp;
  8792. int rc;
  8793. SET_NETDEV_DEV(dev, &pdev->dev);
  8794. bp = netdev_priv(dev);
  8795. bp->dev = dev;
  8796. bp->pdev = pdev;
  8797. bp->flags = 0;
  8798. bp->pf_num = PCI_FUNC(pdev->devfn);
  8799. rc = pci_enable_device(pdev);
  8800. if (rc) {
  8801. dev_err(&bp->pdev->dev,
  8802. "Cannot enable PCI device, aborting\n");
  8803. goto err_out;
  8804. }
  8805. if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
  8806. dev_err(&bp->pdev->dev,
  8807. "Cannot find PCI device base address, aborting\n");
  8808. rc = -ENODEV;
  8809. goto err_out_disable;
  8810. }
  8811. if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
  8812. dev_err(&bp->pdev->dev, "Cannot find second PCI device"
  8813. " base address, aborting\n");
  8814. rc = -ENODEV;
  8815. goto err_out_disable;
  8816. }
  8817. if (atomic_read(&pdev->enable_cnt) == 1) {
  8818. rc = pci_request_regions(pdev, DRV_MODULE_NAME);
  8819. if (rc) {
  8820. dev_err(&bp->pdev->dev,
  8821. "Cannot obtain PCI resources, aborting\n");
  8822. goto err_out_disable;
  8823. }
  8824. pci_set_master(pdev);
  8825. pci_save_state(pdev);
  8826. }
  8827. bp->pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM);
  8828. if (bp->pm_cap == 0) {
  8829. dev_err(&bp->pdev->dev,
  8830. "Cannot find power management capability, aborting\n");
  8831. rc = -EIO;
  8832. goto err_out_release;
  8833. }
  8834. if (!pci_is_pcie(pdev)) {
  8835. dev_err(&bp->pdev->dev, "Not PCI Express, aborting\n");
  8836. rc = -EIO;
  8837. goto err_out_release;
  8838. }
  8839. rc = bnx2x_set_coherency_mask(bp);
  8840. if (rc)
  8841. goto err_out_release;
  8842. dev->mem_start = pci_resource_start(pdev, 0);
  8843. dev->base_addr = dev->mem_start;
  8844. dev->mem_end = pci_resource_end(pdev, 0);
  8845. dev->irq = pdev->irq;
  8846. bp->regview = pci_ioremap_bar(pdev, 0);
  8847. if (!bp->regview) {
  8848. dev_err(&bp->pdev->dev,
  8849. "Cannot map register space, aborting\n");
  8850. rc = -ENOMEM;
  8851. goto err_out_release;
  8852. }
  8853. bnx2x_set_power_state(bp, PCI_D0);
  8854. /* clean indirect addresses */
  8855. pci_write_config_dword(bp->pdev, PCICFG_GRC_ADDRESS,
  8856. PCICFG_VENDOR_ID_OFFSET);
  8857. /*
  8858. * Clean the following indirect addresses for all functions since it
  8859. * is not used by the driver.
  8860. */
  8861. REG_WR(bp, PXP2_REG_PGL_ADDR_88_F0, 0);
  8862. REG_WR(bp, PXP2_REG_PGL_ADDR_8C_F0, 0);
  8863. REG_WR(bp, PXP2_REG_PGL_ADDR_90_F0, 0);
  8864. REG_WR(bp, PXP2_REG_PGL_ADDR_94_F0, 0);
  8865. if (CHIP_IS_E1x(bp)) {
  8866. REG_WR(bp, PXP2_REG_PGL_ADDR_88_F1, 0);
  8867. REG_WR(bp, PXP2_REG_PGL_ADDR_8C_F1, 0);
  8868. REG_WR(bp, PXP2_REG_PGL_ADDR_90_F1, 0);
  8869. REG_WR(bp, PXP2_REG_PGL_ADDR_94_F1, 0);
  8870. }
  8871. /*
  8872. * Enable internal target-read (in case we are probed after PF FLR).
  8873. * Must be done prior to any BAR read access. Only for 57712 and up
  8874. */
  8875. if (board_type != BCM57710 &&
  8876. board_type != BCM57711 &&
  8877. board_type != BCM57711E)
  8878. REG_WR(bp, PGLUE_B_REG_INTERNAL_PFID_ENABLE_TARGET_READ, 1);
  8879. /* Reset the load counter */
  8880. bnx2x_clear_load_cnt(bp);
  8881. dev->watchdog_timeo = TX_TIMEOUT;
  8882. dev->netdev_ops = &bnx2x_netdev_ops;
  8883. bnx2x_set_ethtool_ops(dev);
  8884. dev->priv_flags |= IFF_UNICAST_FLT;
  8885. dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
  8886. NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_TSO6 | NETIF_F_LRO |
  8887. NETIF_F_RXCSUM | NETIF_F_RXHASH | NETIF_F_HW_VLAN_TX;
  8888. dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
  8889. NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_TSO6 | NETIF_F_HIGHDMA;
  8890. dev->features |= dev->hw_features | NETIF_F_HW_VLAN_RX;
  8891. if (bp->flags & USING_DAC_FLAG)
  8892. dev->features |= NETIF_F_HIGHDMA;
  8893. /* Add Loopback capability to the device */
  8894. dev->hw_features |= NETIF_F_LOOPBACK;
  8895. #ifdef BCM_DCBNL
  8896. dev->dcbnl_ops = &bnx2x_dcbnl_ops;
  8897. #endif
  8898. /* get_port_hwinfo() will set prtad and mmds properly */
  8899. bp->mdio.prtad = MDIO_PRTAD_NONE;
  8900. bp->mdio.mmds = 0;
  8901. bp->mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22;
  8902. bp->mdio.dev = dev;
  8903. bp->mdio.mdio_read = bnx2x_mdio_read;
  8904. bp->mdio.mdio_write = bnx2x_mdio_write;
  8905. return 0;
  8906. err_out_release:
  8907. if (atomic_read(&pdev->enable_cnt) == 1)
  8908. pci_release_regions(pdev);
  8909. err_out_disable:
  8910. pci_disable_device(pdev);
  8911. pci_set_drvdata(pdev, NULL);
  8912. err_out:
  8913. return rc;
  8914. }
  8915. static void __devinit bnx2x_get_pcie_width_speed(struct bnx2x *bp,
  8916. int *width, int *speed)
  8917. {
  8918. u32 val = REG_RD(bp, PCICFG_OFFSET + PCICFG_LINK_CONTROL);
  8919. *width = (val & PCICFG_LINK_WIDTH) >> PCICFG_LINK_WIDTH_SHIFT;
  8920. /* return value of 1=2.5GHz 2=5GHz */
  8921. *speed = (val & PCICFG_LINK_SPEED) >> PCICFG_LINK_SPEED_SHIFT;
  8922. }
  8923. static int bnx2x_check_firmware(struct bnx2x *bp)
  8924. {
  8925. const struct firmware *firmware = bp->firmware;
  8926. struct bnx2x_fw_file_hdr *fw_hdr;
  8927. struct bnx2x_fw_file_section *sections;
  8928. u32 offset, len, num_ops;
  8929. u16 *ops_offsets;
  8930. int i;
  8931. const u8 *fw_ver;
  8932. if (firmware->size < sizeof(struct bnx2x_fw_file_hdr))
  8933. return -EINVAL;
  8934. fw_hdr = (struct bnx2x_fw_file_hdr *)firmware->data;
  8935. sections = (struct bnx2x_fw_file_section *)fw_hdr;
  8936. /* Make sure none of the offsets and sizes make us read beyond
  8937. * the end of the firmware data */
  8938. for (i = 0; i < sizeof(*fw_hdr) / sizeof(*sections); i++) {
  8939. offset = be32_to_cpu(sections[i].offset);
  8940. len = be32_to_cpu(sections[i].len);
  8941. if (offset + len > firmware->size) {
  8942. dev_err(&bp->pdev->dev,
  8943. "Section %d length is out of bounds\n", i);
  8944. return -EINVAL;
  8945. }
  8946. }
  8947. /* Likewise for the init_ops offsets */
  8948. offset = be32_to_cpu(fw_hdr->init_ops_offsets.offset);
  8949. ops_offsets = (u16 *)(firmware->data + offset);
  8950. num_ops = be32_to_cpu(fw_hdr->init_ops.len) / sizeof(struct raw_op);
  8951. for (i = 0; i < be32_to_cpu(fw_hdr->init_ops_offsets.len) / 2; i++) {
  8952. if (be16_to_cpu(ops_offsets[i]) > num_ops) {
  8953. dev_err(&bp->pdev->dev,
  8954. "Section offset %d is out of bounds\n", i);
  8955. return -EINVAL;
  8956. }
  8957. }
  8958. /* Check FW version */
  8959. offset = be32_to_cpu(fw_hdr->fw_version.offset);
  8960. fw_ver = firmware->data + offset;
  8961. if ((fw_ver[0] != BCM_5710_FW_MAJOR_VERSION) ||
  8962. (fw_ver[1] != BCM_5710_FW_MINOR_VERSION) ||
  8963. (fw_ver[2] != BCM_5710_FW_REVISION_VERSION) ||
  8964. (fw_ver[3] != BCM_5710_FW_ENGINEERING_VERSION)) {
  8965. dev_err(&bp->pdev->dev,
  8966. "Bad FW version:%d.%d.%d.%d. Should be %d.%d.%d.%d\n",
  8967. fw_ver[0], fw_ver[1], fw_ver[2],
  8968. fw_ver[3], BCM_5710_FW_MAJOR_VERSION,
  8969. BCM_5710_FW_MINOR_VERSION,
  8970. BCM_5710_FW_REVISION_VERSION,
  8971. BCM_5710_FW_ENGINEERING_VERSION);
  8972. return -EINVAL;
  8973. }
  8974. return 0;
  8975. }
  8976. static inline void be32_to_cpu_n(const u8 *_source, u8 *_target, u32 n)
  8977. {
  8978. const __be32 *source = (const __be32 *)_source;
  8979. u32 *target = (u32 *)_target;
  8980. u32 i;
  8981. for (i = 0; i < n/4; i++)
  8982. target[i] = be32_to_cpu(source[i]);
  8983. }
  8984. /*
  8985. Ops array is stored in the following format:
  8986. {op(8bit), offset(24bit, big endian), data(32bit, big endian)}
  8987. */
  8988. static inline void bnx2x_prep_ops(const u8 *_source, u8 *_target, u32 n)
  8989. {
  8990. const __be32 *source = (const __be32 *)_source;
  8991. struct raw_op *target = (struct raw_op *)_target;
  8992. u32 i, j, tmp;
  8993. for (i = 0, j = 0; i < n/8; i++, j += 2) {
  8994. tmp = be32_to_cpu(source[j]);
  8995. target[i].op = (tmp >> 24) & 0xff;
  8996. target[i].offset = tmp & 0xffffff;
  8997. target[i].raw_data = be32_to_cpu(source[j + 1]);
  8998. }
  8999. }
  9000. /**
  9001. * IRO array is stored in the following format:
  9002. * {base(24bit), m1(16bit), m2(16bit), m3(16bit), size(16bit) }
  9003. */
  9004. static inline void bnx2x_prep_iro(const u8 *_source, u8 *_target, u32 n)
  9005. {
  9006. const __be32 *source = (const __be32 *)_source;
  9007. struct iro *target = (struct iro *)_target;
  9008. u32 i, j, tmp;
  9009. for (i = 0, j = 0; i < n/sizeof(struct iro); i++) {
  9010. target[i].base = be32_to_cpu(source[j]);
  9011. j++;
  9012. tmp = be32_to_cpu(source[j]);
  9013. target[i].m1 = (tmp >> 16) & 0xffff;
  9014. target[i].m2 = tmp & 0xffff;
  9015. j++;
  9016. tmp = be32_to_cpu(source[j]);
  9017. target[i].m3 = (tmp >> 16) & 0xffff;
  9018. target[i].size = tmp & 0xffff;
  9019. j++;
  9020. }
  9021. }
  9022. static inline void be16_to_cpu_n(const u8 *_source, u8 *_target, u32 n)
  9023. {
  9024. const __be16 *source = (const __be16 *)_source;
  9025. u16 *target = (u16 *)_target;
  9026. u32 i;
  9027. for (i = 0; i < n/2; i++)
  9028. target[i] = be16_to_cpu(source[i]);
  9029. }
  9030. #define BNX2X_ALLOC_AND_SET(arr, lbl, func) \
  9031. do { \
  9032. u32 len = be32_to_cpu(fw_hdr->arr.len); \
  9033. bp->arr = kmalloc(len, GFP_KERNEL); \
  9034. if (!bp->arr) { \
  9035. pr_err("Failed to allocate %d bytes for "#arr"\n", len); \
  9036. goto lbl; \
  9037. } \
  9038. func(bp->firmware->data + be32_to_cpu(fw_hdr->arr.offset), \
  9039. (u8 *)bp->arr, len); \
  9040. } while (0)
  9041. int bnx2x_init_firmware(struct bnx2x *bp)
  9042. {
  9043. struct bnx2x_fw_file_hdr *fw_hdr;
  9044. int rc;
  9045. if (!bp->firmware) {
  9046. const char *fw_file_name;
  9047. if (CHIP_IS_E1(bp))
  9048. fw_file_name = FW_FILE_NAME_E1;
  9049. else if (CHIP_IS_E1H(bp))
  9050. fw_file_name = FW_FILE_NAME_E1H;
  9051. else if (!CHIP_IS_E1x(bp))
  9052. fw_file_name = FW_FILE_NAME_E2;
  9053. else {
  9054. BNX2X_ERR("Unsupported chip revision\n");
  9055. return -EINVAL;
  9056. }
  9057. BNX2X_DEV_INFO("Loading %s\n", fw_file_name);
  9058. rc = request_firmware(&bp->firmware, fw_file_name,
  9059. &bp->pdev->dev);
  9060. if (rc) {
  9061. BNX2X_ERR("Can't load firmware file %s\n",
  9062. fw_file_name);
  9063. goto request_firmware_exit;
  9064. }
  9065. rc = bnx2x_check_firmware(bp);
  9066. if (rc) {
  9067. BNX2X_ERR("Corrupt firmware file %s\n", fw_file_name);
  9068. goto request_firmware_exit;
  9069. }
  9070. }
  9071. fw_hdr = (struct bnx2x_fw_file_hdr *)bp->firmware->data;
  9072. /* Initialize the pointers to the init arrays */
  9073. /* Blob */
  9074. BNX2X_ALLOC_AND_SET(init_data, request_firmware_exit, be32_to_cpu_n);
  9075. /* Opcodes */
  9076. BNX2X_ALLOC_AND_SET(init_ops, init_ops_alloc_err, bnx2x_prep_ops);
  9077. /* Offsets */
  9078. BNX2X_ALLOC_AND_SET(init_ops_offsets, init_offsets_alloc_err,
  9079. be16_to_cpu_n);
  9080. /* STORMs firmware */
  9081. INIT_TSEM_INT_TABLE_DATA(bp) = bp->firmware->data +
  9082. be32_to_cpu(fw_hdr->tsem_int_table_data.offset);
  9083. INIT_TSEM_PRAM_DATA(bp) = bp->firmware->data +
  9084. be32_to_cpu(fw_hdr->tsem_pram_data.offset);
  9085. INIT_USEM_INT_TABLE_DATA(bp) = bp->firmware->data +
  9086. be32_to_cpu(fw_hdr->usem_int_table_data.offset);
  9087. INIT_USEM_PRAM_DATA(bp) = bp->firmware->data +
  9088. be32_to_cpu(fw_hdr->usem_pram_data.offset);
  9089. INIT_XSEM_INT_TABLE_DATA(bp) = bp->firmware->data +
  9090. be32_to_cpu(fw_hdr->xsem_int_table_data.offset);
  9091. INIT_XSEM_PRAM_DATA(bp) = bp->firmware->data +
  9092. be32_to_cpu(fw_hdr->xsem_pram_data.offset);
  9093. INIT_CSEM_INT_TABLE_DATA(bp) = bp->firmware->data +
  9094. be32_to_cpu(fw_hdr->csem_int_table_data.offset);
  9095. INIT_CSEM_PRAM_DATA(bp) = bp->firmware->data +
  9096. be32_to_cpu(fw_hdr->csem_pram_data.offset);
  9097. /* IRO */
  9098. BNX2X_ALLOC_AND_SET(iro_arr, iro_alloc_err, bnx2x_prep_iro);
  9099. return 0;
  9100. iro_alloc_err:
  9101. kfree(bp->init_ops_offsets);
  9102. init_offsets_alloc_err:
  9103. kfree(bp->init_ops);
  9104. init_ops_alloc_err:
  9105. kfree(bp->init_data);
  9106. request_firmware_exit:
  9107. release_firmware(bp->firmware);
  9108. return rc;
  9109. }
  9110. static void bnx2x_release_firmware(struct bnx2x *bp)
  9111. {
  9112. kfree(bp->init_ops_offsets);
  9113. kfree(bp->init_ops);
  9114. kfree(bp->init_data);
  9115. release_firmware(bp->firmware);
  9116. bp->firmware = NULL;
  9117. }
  9118. static struct bnx2x_func_sp_drv_ops bnx2x_func_sp_drv = {
  9119. .init_hw_cmn_chip = bnx2x_init_hw_common_chip,
  9120. .init_hw_cmn = bnx2x_init_hw_common,
  9121. .init_hw_port = bnx2x_init_hw_port,
  9122. .init_hw_func = bnx2x_init_hw_func,
  9123. .reset_hw_cmn = bnx2x_reset_common,
  9124. .reset_hw_port = bnx2x_reset_port,
  9125. .reset_hw_func = bnx2x_reset_func,
  9126. .gunzip_init = bnx2x_gunzip_init,
  9127. .gunzip_end = bnx2x_gunzip_end,
  9128. .init_fw = bnx2x_init_firmware,
  9129. .release_fw = bnx2x_release_firmware,
  9130. };
  9131. void bnx2x__init_func_obj(struct bnx2x *bp)
  9132. {
  9133. /* Prepare DMAE related driver resources */
  9134. bnx2x_setup_dmae(bp);
  9135. bnx2x_init_func_obj(bp, &bp->func_obj,
  9136. bnx2x_sp(bp, func_rdata),
  9137. bnx2x_sp_mapping(bp, func_rdata),
  9138. &bnx2x_func_sp_drv);
  9139. }
  9140. /* must be called after sriov-enable */
  9141. static inline int bnx2x_set_qm_cid_count(struct bnx2x *bp)
  9142. {
  9143. int cid_count = BNX2X_L2_CID_COUNT(bp);
  9144. #ifdef BCM_CNIC
  9145. cid_count += CNIC_CID_MAX;
  9146. #endif
  9147. return roundup(cid_count, QM_CID_ROUND);
  9148. }
  9149. /**
  9150. * bnx2x_get_num_none_def_sbs - return the number of none default SBs
  9151. *
  9152. * @dev: pci device
  9153. *
  9154. */
  9155. static inline int bnx2x_get_num_non_def_sbs(struct pci_dev *pdev)
  9156. {
  9157. int pos;
  9158. u16 control;
  9159. pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
  9160. /*
  9161. * If MSI-X is not supported - return number of SBs needed to support
  9162. * one fast path queue: one FP queue + SB for CNIC
  9163. */
  9164. if (!pos)
  9165. return 1 + CNIC_PRESENT;
  9166. /*
  9167. * The value in the PCI configuration space is the index of the last
  9168. * entry, namely one less than the actual size of the table, which is
  9169. * exactly what we want to return from this function: number of all SBs
  9170. * without the default SB.
  9171. */
  9172. pci_read_config_word(pdev, pos + PCI_MSI_FLAGS, &control);
  9173. return control & PCI_MSIX_FLAGS_QSIZE;
  9174. }
  9175. static int __devinit bnx2x_init_one(struct pci_dev *pdev,
  9176. const struct pci_device_id *ent)
  9177. {
  9178. struct net_device *dev = NULL;
  9179. struct bnx2x *bp;
  9180. int pcie_width, pcie_speed;
  9181. int rc, max_non_def_sbs;
  9182. int rx_count, tx_count, rss_count;
  9183. /*
  9184. * An estimated maximum supported CoS number according to the chip
  9185. * version.
  9186. * We will try to roughly estimate the maximum number of CoSes this chip
  9187. * may support in order to minimize the memory allocated for Tx
  9188. * netdev_queue's. This number will be accurately calculated during the
  9189. * initialization of bp->max_cos based on the chip versions AND chip
  9190. * revision in the bnx2x_init_bp().
  9191. */
  9192. u8 max_cos_est = 0;
  9193. switch (ent->driver_data) {
  9194. case BCM57710:
  9195. case BCM57711:
  9196. case BCM57711E:
  9197. max_cos_est = BNX2X_MULTI_TX_COS_E1X;
  9198. break;
  9199. case BCM57712:
  9200. case BCM57712_MF:
  9201. max_cos_est = BNX2X_MULTI_TX_COS_E2_E3A0;
  9202. break;
  9203. case BCM57800:
  9204. case BCM57800_MF:
  9205. case BCM57810:
  9206. case BCM57810_MF:
  9207. case BCM57840:
  9208. case BCM57840_MF:
  9209. max_cos_est = BNX2X_MULTI_TX_COS_E3B0;
  9210. break;
  9211. default:
  9212. pr_err("Unknown board_type (%ld), aborting\n",
  9213. ent->driver_data);
  9214. return -ENODEV;
  9215. }
  9216. max_non_def_sbs = bnx2x_get_num_non_def_sbs(pdev);
  9217. /* !!! FIXME !!!
  9218. * Do not allow the maximum SB count to grow above 16
  9219. * since Special CIDs starts from 16*BNX2X_MULTI_TX_COS=48.
  9220. * We will use the FP_SB_MAX_E1x macro for this matter.
  9221. */
  9222. max_non_def_sbs = min_t(int, FP_SB_MAX_E1x, max_non_def_sbs);
  9223. WARN_ON(!max_non_def_sbs);
  9224. /* Maximum number of RSS queues: one IGU SB goes to CNIC */
  9225. rss_count = max_non_def_sbs - CNIC_PRESENT;
  9226. /* Maximum number of netdev Rx queues: RSS + FCoE L2 */
  9227. rx_count = rss_count + FCOE_PRESENT;
  9228. /*
  9229. * Maximum number of netdev Tx queues:
  9230. * Maximum TSS queues * Maximum supported number of CoS + FCoE L2
  9231. */
  9232. tx_count = MAX_TXQS_PER_COS * max_cos_est + FCOE_PRESENT;
  9233. /* dev zeroed in init_etherdev */
  9234. dev = alloc_etherdev_mqs(sizeof(*bp), tx_count, rx_count);
  9235. if (!dev) {
  9236. dev_err(&pdev->dev, "Cannot allocate net device\n");
  9237. return -ENOMEM;
  9238. }
  9239. bp = netdev_priv(dev);
  9240. DP(NETIF_MSG_DRV, "Allocated netdev with %d tx and %d rx queues\n",
  9241. tx_count, rx_count);
  9242. bp->igu_sb_cnt = max_non_def_sbs;
  9243. bp->msg_enable = debug;
  9244. pci_set_drvdata(pdev, dev);
  9245. rc = bnx2x_init_dev(pdev, dev, ent->driver_data);
  9246. if (rc < 0) {
  9247. free_netdev(dev);
  9248. return rc;
  9249. }
  9250. DP(NETIF_MSG_DRV, "max_non_def_sbs %d\n", max_non_def_sbs);
  9251. rc = bnx2x_init_bp(bp);
  9252. if (rc)
  9253. goto init_one_exit;
  9254. /*
  9255. * Map doorbels here as we need the real value of bp->max_cos which
  9256. * is initialized in bnx2x_init_bp().
  9257. */
  9258. bp->doorbells = ioremap_nocache(pci_resource_start(pdev, 2),
  9259. min_t(u64, BNX2X_DB_SIZE(bp),
  9260. pci_resource_len(pdev, 2)));
  9261. if (!bp->doorbells) {
  9262. dev_err(&bp->pdev->dev,
  9263. "Cannot map doorbell space, aborting\n");
  9264. rc = -ENOMEM;
  9265. goto init_one_exit;
  9266. }
  9267. /* calc qm_cid_count */
  9268. bp->qm_cid_count = bnx2x_set_qm_cid_count(bp);
  9269. #ifdef BCM_CNIC
  9270. /* disable FCOE L2 queue for E1x */
  9271. if (CHIP_IS_E1x(bp))
  9272. bp->flags |= NO_FCOE_FLAG;
  9273. #endif
  9274. /* Configure interrupt mode: try to enable MSI-X/MSI if
  9275. * needed, set bp->num_queues appropriately.
  9276. */
  9277. bnx2x_set_int_mode(bp);
  9278. /* Add all NAPI objects */
  9279. bnx2x_add_all_napi(bp);
  9280. rc = register_netdev(dev);
  9281. if (rc) {
  9282. dev_err(&pdev->dev, "Cannot register net device\n");
  9283. goto init_one_exit;
  9284. }
  9285. #ifdef BCM_CNIC
  9286. if (!NO_FCOE(bp)) {
  9287. /* Add storage MAC address */
  9288. rtnl_lock();
  9289. dev_addr_add(bp->dev, bp->fip_mac, NETDEV_HW_ADDR_T_SAN);
  9290. rtnl_unlock();
  9291. }
  9292. #endif
  9293. bnx2x_get_pcie_width_speed(bp, &pcie_width, &pcie_speed);
  9294. netdev_info(dev, "%s (%c%d) PCI-E x%d %s found at mem %lx, IRQ %d, node addr %pM\n",
  9295. board_info[ent->driver_data].name,
  9296. (CHIP_REV(bp) >> 12) + 'A', (CHIP_METAL(bp) >> 4),
  9297. pcie_width,
  9298. ((!CHIP_IS_E2(bp) && pcie_speed == 2) ||
  9299. (CHIP_IS_E2(bp) && pcie_speed == 1)) ?
  9300. "5GHz (Gen2)" : "2.5GHz",
  9301. dev->base_addr, bp->pdev->irq, dev->dev_addr);
  9302. return 0;
  9303. init_one_exit:
  9304. if (bp->regview)
  9305. iounmap(bp->regview);
  9306. if (bp->doorbells)
  9307. iounmap(bp->doorbells);
  9308. free_netdev(dev);
  9309. if (atomic_read(&pdev->enable_cnt) == 1)
  9310. pci_release_regions(pdev);
  9311. pci_disable_device(pdev);
  9312. pci_set_drvdata(pdev, NULL);
  9313. return rc;
  9314. }
  9315. static void __devexit bnx2x_remove_one(struct pci_dev *pdev)
  9316. {
  9317. struct net_device *dev = pci_get_drvdata(pdev);
  9318. struct bnx2x *bp;
  9319. if (!dev) {
  9320. dev_err(&pdev->dev, "BAD net device from bnx2x_init_one\n");
  9321. return;
  9322. }
  9323. bp = netdev_priv(dev);
  9324. #ifdef BCM_CNIC
  9325. /* Delete storage MAC address */
  9326. if (!NO_FCOE(bp)) {
  9327. rtnl_lock();
  9328. dev_addr_del(bp->dev, bp->fip_mac, NETDEV_HW_ADDR_T_SAN);
  9329. rtnl_unlock();
  9330. }
  9331. #endif
  9332. #ifdef BCM_DCBNL
  9333. /* Delete app tlvs from dcbnl */
  9334. bnx2x_dcbnl_update_applist(bp, true);
  9335. #endif
  9336. unregister_netdev(dev);
  9337. /* Delete all NAPI objects */
  9338. bnx2x_del_all_napi(bp);
  9339. /* Power on: we can't let PCI layer write to us while we are in D3 */
  9340. bnx2x_set_power_state(bp, PCI_D0);
  9341. /* Disable MSI/MSI-X */
  9342. bnx2x_disable_msi(bp);
  9343. /* Power off */
  9344. bnx2x_set_power_state(bp, PCI_D3hot);
  9345. /* Make sure RESET task is not scheduled before continuing */
  9346. cancel_delayed_work_sync(&bp->sp_rtnl_task);
  9347. if (bp->regview)
  9348. iounmap(bp->regview);
  9349. if (bp->doorbells)
  9350. iounmap(bp->doorbells);
  9351. bnx2x_release_firmware(bp);
  9352. bnx2x_free_mem_bp(bp);
  9353. free_netdev(dev);
  9354. if (atomic_read(&pdev->enable_cnt) == 1)
  9355. pci_release_regions(pdev);
  9356. pci_disable_device(pdev);
  9357. pci_set_drvdata(pdev, NULL);
  9358. }
  9359. static int bnx2x_eeh_nic_unload(struct bnx2x *bp)
  9360. {
  9361. int i;
  9362. bp->state = BNX2X_STATE_ERROR;
  9363. bp->rx_mode = BNX2X_RX_MODE_NONE;
  9364. #ifdef BCM_CNIC
  9365. bnx2x_cnic_notify(bp, CNIC_CTL_STOP_CMD);
  9366. #endif
  9367. /* Stop Tx */
  9368. bnx2x_tx_disable(bp);
  9369. bnx2x_netif_stop(bp, 0);
  9370. del_timer_sync(&bp->timer);
  9371. bnx2x_stats_handle(bp, STATS_EVENT_STOP);
  9372. /* Release IRQs */
  9373. bnx2x_free_irq(bp);
  9374. /* Free SKBs, SGEs, TPA pool and driver internals */
  9375. bnx2x_free_skbs(bp);
  9376. for_each_rx_queue(bp, i)
  9377. bnx2x_free_rx_sge_range(bp, bp->fp + i, NUM_RX_SGE);
  9378. bnx2x_free_mem(bp);
  9379. bp->state = BNX2X_STATE_CLOSED;
  9380. netif_carrier_off(bp->dev);
  9381. return 0;
  9382. }
  9383. static void bnx2x_eeh_recover(struct bnx2x *bp)
  9384. {
  9385. u32 val;
  9386. mutex_init(&bp->port.phy_mutex);
  9387. bp->common.shmem_base = REG_RD(bp, MISC_REG_SHARED_MEM_ADDR);
  9388. bp->link_params.shmem_base = bp->common.shmem_base;
  9389. BNX2X_DEV_INFO("shmem offset is 0x%x\n", bp->common.shmem_base);
  9390. if (!bp->common.shmem_base ||
  9391. (bp->common.shmem_base < 0xA0000) ||
  9392. (bp->common.shmem_base >= 0xC0000)) {
  9393. BNX2X_DEV_INFO("MCP not active\n");
  9394. bp->flags |= NO_MCP_FLAG;
  9395. return;
  9396. }
  9397. val = SHMEM_RD(bp, validity_map[BP_PORT(bp)]);
  9398. if ((val & (SHR_MEM_VALIDITY_DEV_INFO | SHR_MEM_VALIDITY_MB))
  9399. != (SHR_MEM_VALIDITY_DEV_INFO | SHR_MEM_VALIDITY_MB))
  9400. BNX2X_ERR("BAD MCP validity signature\n");
  9401. if (!BP_NOMCP(bp)) {
  9402. bp->fw_seq =
  9403. (SHMEM_RD(bp, func_mb[BP_FW_MB_IDX(bp)].drv_mb_header) &
  9404. DRV_MSG_SEQ_NUMBER_MASK);
  9405. BNX2X_DEV_INFO("fw_seq 0x%08x\n", bp->fw_seq);
  9406. }
  9407. }
  9408. /**
  9409. * bnx2x_io_error_detected - called when PCI error is detected
  9410. * @pdev: Pointer to PCI device
  9411. * @state: The current pci connection state
  9412. *
  9413. * This function is called after a PCI bus error affecting
  9414. * this device has been detected.
  9415. */
  9416. static pci_ers_result_t bnx2x_io_error_detected(struct pci_dev *pdev,
  9417. pci_channel_state_t state)
  9418. {
  9419. struct net_device *dev = pci_get_drvdata(pdev);
  9420. struct bnx2x *bp = netdev_priv(dev);
  9421. rtnl_lock();
  9422. netif_device_detach(dev);
  9423. if (state == pci_channel_io_perm_failure) {
  9424. rtnl_unlock();
  9425. return PCI_ERS_RESULT_DISCONNECT;
  9426. }
  9427. if (netif_running(dev))
  9428. bnx2x_eeh_nic_unload(bp);
  9429. pci_disable_device(pdev);
  9430. rtnl_unlock();
  9431. /* Request a slot reset */
  9432. return PCI_ERS_RESULT_NEED_RESET;
  9433. }
  9434. /**
  9435. * bnx2x_io_slot_reset - called after the PCI bus has been reset
  9436. * @pdev: Pointer to PCI device
  9437. *
  9438. * Restart the card from scratch, as if from a cold-boot.
  9439. */
  9440. static pci_ers_result_t bnx2x_io_slot_reset(struct pci_dev *pdev)
  9441. {
  9442. struct net_device *dev = pci_get_drvdata(pdev);
  9443. struct bnx2x *bp = netdev_priv(dev);
  9444. rtnl_lock();
  9445. if (pci_enable_device(pdev)) {
  9446. dev_err(&pdev->dev,
  9447. "Cannot re-enable PCI device after reset\n");
  9448. rtnl_unlock();
  9449. return PCI_ERS_RESULT_DISCONNECT;
  9450. }
  9451. pci_set_master(pdev);
  9452. pci_restore_state(pdev);
  9453. if (netif_running(dev))
  9454. bnx2x_set_power_state(bp, PCI_D0);
  9455. rtnl_unlock();
  9456. return PCI_ERS_RESULT_RECOVERED;
  9457. }
  9458. /**
  9459. * bnx2x_io_resume - called when traffic can start flowing again
  9460. * @pdev: Pointer to PCI device
  9461. *
  9462. * This callback is called when the error recovery driver tells us that
  9463. * its OK to resume normal operation.
  9464. */
  9465. static void bnx2x_io_resume(struct pci_dev *pdev)
  9466. {
  9467. struct net_device *dev = pci_get_drvdata(pdev);
  9468. struct bnx2x *bp = netdev_priv(dev);
  9469. if (bp->recovery_state != BNX2X_RECOVERY_DONE) {
  9470. netdev_err(bp->dev, "Handling parity error recovery. "
  9471. "Try again later\n");
  9472. return;
  9473. }
  9474. rtnl_lock();
  9475. bnx2x_eeh_recover(bp);
  9476. if (netif_running(dev))
  9477. bnx2x_nic_load(bp, LOAD_NORMAL);
  9478. netif_device_attach(dev);
  9479. rtnl_unlock();
  9480. }
  9481. static struct pci_error_handlers bnx2x_err_handler = {
  9482. .error_detected = bnx2x_io_error_detected,
  9483. .slot_reset = bnx2x_io_slot_reset,
  9484. .resume = bnx2x_io_resume,
  9485. };
  9486. static struct pci_driver bnx2x_pci_driver = {
  9487. .name = DRV_MODULE_NAME,
  9488. .id_table = bnx2x_pci_tbl,
  9489. .probe = bnx2x_init_one,
  9490. .remove = __devexit_p(bnx2x_remove_one),
  9491. .suspend = bnx2x_suspend,
  9492. .resume = bnx2x_resume,
  9493. .err_handler = &bnx2x_err_handler,
  9494. };
  9495. static int __init bnx2x_init(void)
  9496. {
  9497. int ret;
  9498. pr_info("%s", version);
  9499. bnx2x_wq = create_singlethread_workqueue("bnx2x");
  9500. if (bnx2x_wq == NULL) {
  9501. pr_err("Cannot create workqueue\n");
  9502. return -ENOMEM;
  9503. }
  9504. ret = pci_register_driver(&bnx2x_pci_driver);
  9505. if (ret) {
  9506. pr_err("Cannot register driver\n");
  9507. destroy_workqueue(bnx2x_wq);
  9508. }
  9509. return ret;
  9510. }
  9511. static void __exit bnx2x_cleanup(void)
  9512. {
  9513. pci_unregister_driver(&bnx2x_pci_driver);
  9514. destroy_workqueue(bnx2x_wq);
  9515. }
  9516. void bnx2x_notify_link_changed(struct bnx2x *bp)
  9517. {
  9518. REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_12 + BP_FUNC(bp)*sizeof(u32), 1);
  9519. }
  9520. module_init(bnx2x_init);
  9521. module_exit(bnx2x_cleanup);
  9522. #ifdef BCM_CNIC
  9523. /**
  9524. * bnx2x_set_iscsi_eth_mac_addr - set iSCSI MAC(s).
  9525. *
  9526. * @bp: driver handle
  9527. * @set: set or clear the CAM entry
  9528. *
  9529. * This function will wait until the ramdord completion returns.
  9530. * Return 0 if success, -ENODEV if ramrod doesn't return.
  9531. */
  9532. static inline int bnx2x_set_iscsi_eth_mac_addr(struct bnx2x *bp)
  9533. {
  9534. unsigned long ramrod_flags = 0;
  9535. __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
  9536. return bnx2x_set_mac_one(bp, bp->cnic_eth_dev.iscsi_mac,
  9537. &bp->iscsi_l2_mac_obj, true,
  9538. BNX2X_ISCSI_ETH_MAC, &ramrod_flags);
  9539. }
  9540. /* count denotes the number of new completions we have seen */
  9541. static void bnx2x_cnic_sp_post(struct bnx2x *bp, int count)
  9542. {
  9543. struct eth_spe *spe;
  9544. #ifdef BNX2X_STOP_ON_ERROR
  9545. if (unlikely(bp->panic))
  9546. return;
  9547. #endif
  9548. spin_lock_bh(&bp->spq_lock);
  9549. BUG_ON(bp->cnic_spq_pending < count);
  9550. bp->cnic_spq_pending -= count;
  9551. for (; bp->cnic_kwq_pending; bp->cnic_kwq_pending--) {
  9552. u16 type = (le16_to_cpu(bp->cnic_kwq_cons->hdr.type)
  9553. & SPE_HDR_CONN_TYPE) >>
  9554. SPE_HDR_CONN_TYPE_SHIFT;
  9555. u8 cmd = (le32_to_cpu(bp->cnic_kwq_cons->hdr.conn_and_cmd_data)
  9556. >> SPE_HDR_CMD_ID_SHIFT) & 0xff;
  9557. /* Set validation for iSCSI L2 client before sending SETUP
  9558. * ramrod
  9559. */
  9560. if (type == ETH_CONNECTION_TYPE) {
  9561. if (cmd == RAMROD_CMD_ID_ETH_CLIENT_SETUP)
  9562. bnx2x_set_ctx_validation(bp, &bp->context.
  9563. vcxt[BNX2X_ISCSI_ETH_CID].eth,
  9564. BNX2X_ISCSI_ETH_CID);
  9565. }
  9566. /*
  9567. * There may be not more than 8 L2, not more than 8 L5 SPEs
  9568. * and in the air. We also check that number of outstanding
  9569. * COMMON ramrods is not more than the EQ and SPQ can
  9570. * accommodate.
  9571. */
  9572. if (type == ETH_CONNECTION_TYPE) {
  9573. if (!atomic_read(&bp->cq_spq_left))
  9574. break;
  9575. else
  9576. atomic_dec(&bp->cq_spq_left);
  9577. } else if (type == NONE_CONNECTION_TYPE) {
  9578. if (!atomic_read(&bp->eq_spq_left))
  9579. break;
  9580. else
  9581. atomic_dec(&bp->eq_spq_left);
  9582. } else if ((type == ISCSI_CONNECTION_TYPE) ||
  9583. (type == FCOE_CONNECTION_TYPE)) {
  9584. if (bp->cnic_spq_pending >=
  9585. bp->cnic_eth_dev.max_kwqe_pending)
  9586. break;
  9587. else
  9588. bp->cnic_spq_pending++;
  9589. } else {
  9590. BNX2X_ERR("Unknown SPE type: %d\n", type);
  9591. bnx2x_panic();
  9592. break;
  9593. }
  9594. spe = bnx2x_sp_get_next(bp);
  9595. *spe = *bp->cnic_kwq_cons;
  9596. DP(NETIF_MSG_TIMER, "pending on SPQ %d, on KWQ %d count %d\n",
  9597. bp->cnic_spq_pending, bp->cnic_kwq_pending, count);
  9598. if (bp->cnic_kwq_cons == bp->cnic_kwq_last)
  9599. bp->cnic_kwq_cons = bp->cnic_kwq;
  9600. else
  9601. bp->cnic_kwq_cons++;
  9602. }
  9603. bnx2x_sp_prod_update(bp);
  9604. spin_unlock_bh(&bp->spq_lock);
  9605. }
  9606. static int bnx2x_cnic_sp_queue(struct net_device *dev,
  9607. struct kwqe_16 *kwqes[], u32 count)
  9608. {
  9609. struct bnx2x *bp = netdev_priv(dev);
  9610. int i;
  9611. #ifdef BNX2X_STOP_ON_ERROR
  9612. if (unlikely(bp->panic))
  9613. return -EIO;
  9614. #endif
  9615. spin_lock_bh(&bp->spq_lock);
  9616. for (i = 0; i < count; i++) {
  9617. struct eth_spe *spe = (struct eth_spe *)kwqes[i];
  9618. if (bp->cnic_kwq_pending == MAX_SP_DESC_CNT)
  9619. break;
  9620. *bp->cnic_kwq_prod = *spe;
  9621. bp->cnic_kwq_pending++;
  9622. DP(NETIF_MSG_TIMER, "L5 SPQE %x %x %x:%x pos %d\n",
  9623. spe->hdr.conn_and_cmd_data, spe->hdr.type,
  9624. spe->data.update_data_addr.hi,
  9625. spe->data.update_data_addr.lo,
  9626. bp->cnic_kwq_pending);
  9627. if (bp->cnic_kwq_prod == bp->cnic_kwq_last)
  9628. bp->cnic_kwq_prod = bp->cnic_kwq;
  9629. else
  9630. bp->cnic_kwq_prod++;
  9631. }
  9632. spin_unlock_bh(&bp->spq_lock);
  9633. if (bp->cnic_spq_pending < bp->cnic_eth_dev.max_kwqe_pending)
  9634. bnx2x_cnic_sp_post(bp, 0);
  9635. return i;
  9636. }
  9637. static int bnx2x_cnic_ctl_send(struct bnx2x *bp, struct cnic_ctl_info *ctl)
  9638. {
  9639. struct cnic_ops *c_ops;
  9640. int rc = 0;
  9641. mutex_lock(&bp->cnic_mutex);
  9642. c_ops = rcu_dereference_protected(bp->cnic_ops,
  9643. lockdep_is_held(&bp->cnic_mutex));
  9644. if (c_ops)
  9645. rc = c_ops->cnic_ctl(bp->cnic_data, ctl);
  9646. mutex_unlock(&bp->cnic_mutex);
  9647. return rc;
  9648. }
  9649. static int bnx2x_cnic_ctl_send_bh(struct bnx2x *bp, struct cnic_ctl_info *ctl)
  9650. {
  9651. struct cnic_ops *c_ops;
  9652. int rc = 0;
  9653. rcu_read_lock();
  9654. c_ops = rcu_dereference(bp->cnic_ops);
  9655. if (c_ops)
  9656. rc = c_ops->cnic_ctl(bp->cnic_data, ctl);
  9657. rcu_read_unlock();
  9658. return rc;
  9659. }
  9660. /*
  9661. * for commands that have no data
  9662. */
  9663. int bnx2x_cnic_notify(struct bnx2x *bp, int cmd)
  9664. {
  9665. struct cnic_ctl_info ctl = {0};
  9666. ctl.cmd = cmd;
  9667. return bnx2x_cnic_ctl_send(bp, &ctl);
  9668. }
  9669. static void bnx2x_cnic_cfc_comp(struct bnx2x *bp, int cid, u8 err)
  9670. {
  9671. struct cnic_ctl_info ctl = {0};
  9672. /* first we tell CNIC and only then we count this as a completion */
  9673. ctl.cmd = CNIC_CTL_COMPLETION_CMD;
  9674. ctl.data.comp.cid = cid;
  9675. ctl.data.comp.error = err;
  9676. bnx2x_cnic_ctl_send_bh(bp, &ctl);
  9677. bnx2x_cnic_sp_post(bp, 0);
  9678. }
  9679. /* Called with netif_addr_lock_bh() taken.
  9680. * Sets an rx_mode config for an iSCSI ETH client.
  9681. * Doesn't block.
  9682. * Completion should be checked outside.
  9683. */
  9684. static void bnx2x_set_iscsi_eth_rx_mode(struct bnx2x *bp, bool start)
  9685. {
  9686. unsigned long accept_flags = 0, ramrod_flags = 0;
  9687. u8 cl_id = bnx2x_cnic_eth_cl_id(bp, BNX2X_ISCSI_ETH_CL_ID_IDX);
  9688. int sched_state = BNX2X_FILTER_ISCSI_ETH_STOP_SCHED;
  9689. if (start) {
  9690. /* Start accepting on iSCSI L2 ring. Accept all multicasts
  9691. * because it's the only way for UIO Queue to accept
  9692. * multicasts (in non-promiscuous mode only one Queue per
  9693. * function will receive multicast packets (leading in our
  9694. * case).
  9695. */
  9696. __set_bit(BNX2X_ACCEPT_UNICAST, &accept_flags);
  9697. __set_bit(BNX2X_ACCEPT_ALL_MULTICAST, &accept_flags);
  9698. __set_bit(BNX2X_ACCEPT_BROADCAST, &accept_flags);
  9699. __set_bit(BNX2X_ACCEPT_ANY_VLAN, &accept_flags);
  9700. /* Clear STOP_PENDING bit if START is requested */
  9701. clear_bit(BNX2X_FILTER_ISCSI_ETH_STOP_SCHED, &bp->sp_state);
  9702. sched_state = BNX2X_FILTER_ISCSI_ETH_START_SCHED;
  9703. } else
  9704. /* Clear START_PENDING bit if STOP is requested */
  9705. clear_bit(BNX2X_FILTER_ISCSI_ETH_START_SCHED, &bp->sp_state);
  9706. if (test_bit(BNX2X_FILTER_RX_MODE_PENDING, &bp->sp_state))
  9707. set_bit(sched_state, &bp->sp_state);
  9708. else {
  9709. __set_bit(RAMROD_RX, &ramrod_flags);
  9710. bnx2x_set_q_rx_mode(bp, cl_id, 0, accept_flags, 0,
  9711. ramrod_flags);
  9712. }
  9713. }
  9714. static int bnx2x_drv_ctl(struct net_device *dev, struct drv_ctl_info *ctl)
  9715. {
  9716. struct bnx2x *bp = netdev_priv(dev);
  9717. int rc = 0;
  9718. switch (ctl->cmd) {
  9719. case DRV_CTL_CTXTBL_WR_CMD: {
  9720. u32 index = ctl->data.io.offset;
  9721. dma_addr_t addr = ctl->data.io.dma_addr;
  9722. bnx2x_ilt_wr(bp, index, addr);
  9723. break;
  9724. }
  9725. case DRV_CTL_RET_L5_SPQ_CREDIT_CMD: {
  9726. int count = ctl->data.credit.credit_count;
  9727. bnx2x_cnic_sp_post(bp, count);
  9728. break;
  9729. }
  9730. /* rtnl_lock is held. */
  9731. case DRV_CTL_START_L2_CMD: {
  9732. struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
  9733. unsigned long sp_bits = 0;
  9734. /* Configure the iSCSI classification object */
  9735. bnx2x_init_mac_obj(bp, &bp->iscsi_l2_mac_obj,
  9736. cp->iscsi_l2_client_id,
  9737. cp->iscsi_l2_cid, BP_FUNC(bp),
  9738. bnx2x_sp(bp, mac_rdata),
  9739. bnx2x_sp_mapping(bp, mac_rdata),
  9740. BNX2X_FILTER_MAC_PENDING,
  9741. &bp->sp_state, BNX2X_OBJ_TYPE_RX,
  9742. &bp->macs_pool);
  9743. /* Set iSCSI MAC address */
  9744. rc = bnx2x_set_iscsi_eth_mac_addr(bp);
  9745. if (rc)
  9746. break;
  9747. mmiowb();
  9748. barrier();
  9749. /* Start accepting on iSCSI L2 ring */
  9750. netif_addr_lock_bh(dev);
  9751. bnx2x_set_iscsi_eth_rx_mode(bp, true);
  9752. netif_addr_unlock_bh(dev);
  9753. /* bits to wait on */
  9754. __set_bit(BNX2X_FILTER_RX_MODE_PENDING, &sp_bits);
  9755. __set_bit(BNX2X_FILTER_ISCSI_ETH_START_SCHED, &sp_bits);
  9756. if (!bnx2x_wait_sp_comp(bp, sp_bits))
  9757. BNX2X_ERR("rx_mode completion timed out!\n");
  9758. break;
  9759. }
  9760. /* rtnl_lock is held. */
  9761. case DRV_CTL_STOP_L2_CMD: {
  9762. unsigned long sp_bits = 0;
  9763. /* Stop accepting on iSCSI L2 ring */
  9764. netif_addr_lock_bh(dev);
  9765. bnx2x_set_iscsi_eth_rx_mode(bp, false);
  9766. netif_addr_unlock_bh(dev);
  9767. /* bits to wait on */
  9768. __set_bit(BNX2X_FILTER_RX_MODE_PENDING, &sp_bits);
  9769. __set_bit(BNX2X_FILTER_ISCSI_ETH_STOP_SCHED, &sp_bits);
  9770. if (!bnx2x_wait_sp_comp(bp, sp_bits))
  9771. BNX2X_ERR("rx_mode completion timed out!\n");
  9772. mmiowb();
  9773. barrier();
  9774. /* Unset iSCSI L2 MAC */
  9775. rc = bnx2x_del_all_macs(bp, &bp->iscsi_l2_mac_obj,
  9776. BNX2X_ISCSI_ETH_MAC, true);
  9777. break;
  9778. }
  9779. case DRV_CTL_RET_L2_SPQ_CREDIT_CMD: {
  9780. int count = ctl->data.credit.credit_count;
  9781. smp_mb__before_atomic_inc();
  9782. atomic_add(count, &bp->cq_spq_left);
  9783. smp_mb__after_atomic_inc();
  9784. break;
  9785. }
  9786. case DRV_CTL_ULP_REGISTER_CMD: {
  9787. int ulp_type = ctl->data.ulp_type;
  9788. if (CHIP_IS_E3(bp)) {
  9789. int idx = BP_FW_MB_IDX(bp);
  9790. u32 cap;
  9791. cap = SHMEM2_RD(bp, drv_capabilities_flag[idx]);
  9792. if (ulp_type == CNIC_ULP_ISCSI)
  9793. cap |= DRV_FLAGS_CAPABILITIES_LOADED_ISCSI;
  9794. else if (ulp_type == CNIC_ULP_FCOE)
  9795. cap |= DRV_FLAGS_CAPABILITIES_LOADED_FCOE;
  9796. SHMEM2_WR(bp, drv_capabilities_flag[idx], cap);
  9797. }
  9798. break;
  9799. }
  9800. case DRV_CTL_ULP_UNREGISTER_CMD: {
  9801. int ulp_type = ctl->data.ulp_type;
  9802. if (CHIP_IS_E3(bp)) {
  9803. int idx = BP_FW_MB_IDX(bp);
  9804. u32 cap;
  9805. cap = SHMEM2_RD(bp, drv_capabilities_flag[idx]);
  9806. if (ulp_type == CNIC_ULP_ISCSI)
  9807. cap &= ~DRV_FLAGS_CAPABILITIES_LOADED_ISCSI;
  9808. else if (ulp_type == CNIC_ULP_FCOE)
  9809. cap &= ~DRV_FLAGS_CAPABILITIES_LOADED_FCOE;
  9810. SHMEM2_WR(bp, drv_capabilities_flag[idx], cap);
  9811. }
  9812. break;
  9813. }
  9814. default:
  9815. BNX2X_ERR("unknown command %x\n", ctl->cmd);
  9816. rc = -EINVAL;
  9817. }
  9818. return rc;
  9819. }
  9820. void bnx2x_setup_cnic_irq_info(struct bnx2x *bp)
  9821. {
  9822. struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
  9823. if (bp->flags & USING_MSIX_FLAG) {
  9824. cp->drv_state |= CNIC_DRV_STATE_USING_MSIX;
  9825. cp->irq_arr[0].irq_flags |= CNIC_IRQ_FL_MSIX;
  9826. cp->irq_arr[0].vector = bp->msix_table[1].vector;
  9827. } else {
  9828. cp->drv_state &= ~CNIC_DRV_STATE_USING_MSIX;
  9829. cp->irq_arr[0].irq_flags &= ~CNIC_IRQ_FL_MSIX;
  9830. }
  9831. if (!CHIP_IS_E1x(bp))
  9832. cp->irq_arr[0].status_blk = (void *)bp->cnic_sb.e2_sb;
  9833. else
  9834. cp->irq_arr[0].status_blk = (void *)bp->cnic_sb.e1x_sb;
  9835. cp->irq_arr[0].status_blk_num = bnx2x_cnic_fw_sb_id(bp);
  9836. cp->irq_arr[0].status_blk_num2 = bnx2x_cnic_igu_sb_id(bp);
  9837. cp->irq_arr[1].status_blk = bp->def_status_blk;
  9838. cp->irq_arr[1].status_blk_num = DEF_SB_ID;
  9839. cp->irq_arr[1].status_blk_num2 = DEF_SB_IGU_ID;
  9840. cp->num_irq = 2;
  9841. }
  9842. static int bnx2x_register_cnic(struct net_device *dev, struct cnic_ops *ops,
  9843. void *data)
  9844. {
  9845. struct bnx2x *bp = netdev_priv(dev);
  9846. struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
  9847. if (ops == NULL)
  9848. return -EINVAL;
  9849. bp->cnic_kwq = kzalloc(PAGE_SIZE, GFP_KERNEL);
  9850. if (!bp->cnic_kwq)
  9851. return -ENOMEM;
  9852. bp->cnic_kwq_cons = bp->cnic_kwq;
  9853. bp->cnic_kwq_prod = bp->cnic_kwq;
  9854. bp->cnic_kwq_last = bp->cnic_kwq + MAX_SP_DESC_CNT;
  9855. bp->cnic_spq_pending = 0;
  9856. bp->cnic_kwq_pending = 0;
  9857. bp->cnic_data = data;
  9858. cp->num_irq = 0;
  9859. cp->drv_state |= CNIC_DRV_STATE_REGD;
  9860. cp->iro_arr = bp->iro_arr;
  9861. bnx2x_setup_cnic_irq_info(bp);
  9862. rcu_assign_pointer(bp->cnic_ops, ops);
  9863. return 0;
  9864. }
  9865. static int bnx2x_unregister_cnic(struct net_device *dev)
  9866. {
  9867. struct bnx2x *bp = netdev_priv(dev);
  9868. struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
  9869. mutex_lock(&bp->cnic_mutex);
  9870. cp->drv_state = 0;
  9871. RCU_INIT_POINTER(bp->cnic_ops, NULL);
  9872. mutex_unlock(&bp->cnic_mutex);
  9873. synchronize_rcu();
  9874. kfree(bp->cnic_kwq);
  9875. bp->cnic_kwq = NULL;
  9876. return 0;
  9877. }
  9878. struct cnic_eth_dev *bnx2x_cnic_probe(struct net_device *dev)
  9879. {
  9880. struct bnx2x *bp = netdev_priv(dev);
  9881. struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
  9882. /* If both iSCSI and FCoE are disabled - return NULL in
  9883. * order to indicate CNIC that it should not try to work
  9884. * with this device.
  9885. */
  9886. if (NO_ISCSI(bp) && NO_FCOE(bp))
  9887. return NULL;
  9888. cp->drv_owner = THIS_MODULE;
  9889. cp->chip_id = CHIP_ID(bp);
  9890. cp->pdev = bp->pdev;
  9891. cp->io_base = bp->regview;
  9892. cp->io_base2 = bp->doorbells;
  9893. cp->max_kwqe_pending = 8;
  9894. cp->ctx_blk_size = CDU_ILT_PAGE_SZ;
  9895. cp->ctx_tbl_offset = FUNC_ILT_BASE(BP_FUNC(bp)) +
  9896. bnx2x_cid_ilt_lines(bp);
  9897. cp->ctx_tbl_len = CNIC_ILT_LINES;
  9898. cp->starting_cid = bnx2x_cid_ilt_lines(bp) * ILT_PAGE_CIDS;
  9899. cp->drv_submit_kwqes_16 = bnx2x_cnic_sp_queue;
  9900. cp->drv_ctl = bnx2x_drv_ctl;
  9901. cp->drv_register_cnic = bnx2x_register_cnic;
  9902. cp->drv_unregister_cnic = bnx2x_unregister_cnic;
  9903. cp->fcoe_init_cid = BNX2X_FCOE_ETH_CID;
  9904. cp->iscsi_l2_client_id =
  9905. bnx2x_cnic_eth_cl_id(bp, BNX2X_ISCSI_ETH_CL_ID_IDX);
  9906. cp->iscsi_l2_cid = BNX2X_ISCSI_ETH_CID;
  9907. if (NO_ISCSI_OOO(bp))
  9908. cp->drv_state |= CNIC_DRV_STATE_NO_ISCSI_OOO;
  9909. if (NO_ISCSI(bp))
  9910. cp->drv_state |= CNIC_DRV_STATE_NO_ISCSI;
  9911. if (NO_FCOE(bp))
  9912. cp->drv_state |= CNIC_DRV_STATE_NO_FCOE;
  9913. DP(BNX2X_MSG_SP, "page_size %d, tbl_offset %d, tbl_lines %d, "
  9914. "starting cid %d\n",
  9915. cp->ctx_blk_size,
  9916. cp->ctx_tbl_offset,
  9917. cp->ctx_tbl_len,
  9918. cp->starting_cid);
  9919. return cp;
  9920. }
  9921. EXPORT_SYMBOL(bnx2x_cnic_probe);
  9922. #endif /* BCM_CNIC */