bnx2x_dcb.c 71 KB

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  1. /* bnx2x_dcb.c: Broadcom Everest network driver.
  2. *
  3. * Copyright 2009-2012 Broadcom Corporation
  4. *
  5. * Unless you and Broadcom execute a separate written software license
  6. * agreement governing use of this software, this software is licensed to you
  7. * under the terms of the GNU General Public License version 2, available
  8. * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
  9. *
  10. * Notwithstanding the above, under no circumstances may you combine this
  11. * software in any way with any other Broadcom software provided under a
  12. * license other than the GPL, without Broadcom's express prior written
  13. * consent.
  14. *
  15. * Maintained by: Eilon Greenstein <eilong@broadcom.com>
  16. * Written by: Dmitry Kravkov
  17. *
  18. */
  19. #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  20. #include <linux/netdevice.h>
  21. #include <linux/types.h>
  22. #include <linux/errno.h>
  23. #include <linux/rtnetlink.h>
  24. #include <net/dcbnl.h>
  25. #include "bnx2x.h"
  26. #include "bnx2x_cmn.h"
  27. #include "bnx2x_dcb.h"
  28. /* forward declarations of dcbx related functions */
  29. static int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp);
  30. static void bnx2x_pfc_set_pfc(struct bnx2x *bp);
  31. static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp);
  32. static int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp);
  33. static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
  34. u32 *set_configuration_ets_pg,
  35. u32 *pri_pg_tbl);
  36. static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
  37. u32 *pg_pri_orginal_spread,
  38. struct pg_help_data *help_data);
  39. static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp,
  40. struct pg_help_data *help_data,
  41. struct dcbx_ets_feature *ets,
  42. u32 *pg_pri_orginal_spread);
  43. static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
  44. struct cos_help_data *cos_data,
  45. u32 *pg_pri_orginal_spread,
  46. struct dcbx_ets_feature *ets);
  47. static void bnx2x_dcbx_fw_struct(struct bnx2x *bp,
  48. struct bnx2x_func_tx_start_params*);
  49. /* helpers: read/write len bytes from addr into buff by REG_RD/REG_WR */
  50. static void bnx2x_read_data(struct bnx2x *bp, u32 *buff,
  51. u32 addr, u32 len)
  52. {
  53. int i;
  54. for (i = 0; i < len; i += 4, buff++)
  55. *buff = REG_RD(bp, addr + i);
  56. }
  57. static void bnx2x_write_data(struct bnx2x *bp, u32 *buff,
  58. u32 addr, u32 len)
  59. {
  60. int i;
  61. for (i = 0; i < len; i += 4, buff++)
  62. REG_WR(bp, addr + i, *buff);
  63. }
  64. static void bnx2x_pfc_set(struct bnx2x *bp)
  65. {
  66. struct bnx2x_nig_brb_pfc_port_params pfc_params = {0};
  67. u32 pri_bit, val = 0;
  68. int i;
  69. pfc_params.num_of_rx_cos_priority_mask =
  70. bp->dcbx_port_params.ets.num_of_cos;
  71. /* Tx COS configuration */
  72. for (i = 0; i < bp->dcbx_port_params.ets.num_of_cos; i++)
  73. /*
  74. * We configure only the pauseable bits (non pauseable aren't
  75. * configured at all) it's done to avoid false pauses from
  76. * network
  77. */
  78. pfc_params.rx_cos_priority_mask[i] =
  79. bp->dcbx_port_params.ets.cos_params[i].pri_bitmask
  80. & DCBX_PFC_PRI_PAUSE_MASK(bp);
  81. /*
  82. * Rx COS configuration
  83. * Changing PFC RX configuration .
  84. * In RX COS0 will always be configured to lossy and COS1 to lossless
  85. */
  86. for (i = 0 ; i < MAX_PFC_PRIORITIES ; i++) {
  87. pri_bit = 1 << i;
  88. if (pri_bit & DCBX_PFC_PRI_PAUSE_MASK(bp))
  89. val |= 1 << (i * 4);
  90. }
  91. pfc_params.pkt_priority_to_cos = val;
  92. /* RX COS0 */
  93. pfc_params.llfc_low_priority_classes = 0;
  94. /* RX COS1 */
  95. pfc_params.llfc_high_priority_classes = DCBX_PFC_PRI_PAUSE_MASK(bp);
  96. /* BRB configuration */
  97. pfc_params.cos0_pauseable = false;
  98. pfc_params.cos1_pauseable = true;
  99. bnx2x_acquire_phy_lock(bp);
  100. bp->link_params.feature_config_flags |= FEATURE_CONFIG_PFC_ENABLED;
  101. bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &pfc_params);
  102. bnx2x_release_phy_lock(bp);
  103. }
  104. static void bnx2x_pfc_clear(struct bnx2x *bp)
  105. {
  106. struct bnx2x_nig_brb_pfc_port_params nig_params = {0};
  107. nig_params.pause_enable = 1;
  108. bnx2x_acquire_phy_lock(bp);
  109. bp->link_params.feature_config_flags &= ~FEATURE_CONFIG_PFC_ENABLED;
  110. bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &nig_params);
  111. bnx2x_release_phy_lock(bp);
  112. }
  113. static void bnx2x_dump_dcbx_drv_param(struct bnx2x *bp,
  114. struct dcbx_features *features,
  115. u32 error)
  116. {
  117. u8 i = 0;
  118. DP(NETIF_MSG_LINK, "local_mib.error %x\n", error);
  119. /* PG */
  120. DP(NETIF_MSG_LINK,
  121. "local_mib.features.ets.enabled %x\n", features->ets.enabled);
  122. for (i = 0; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++)
  123. DP(NETIF_MSG_LINK,
  124. "local_mib.features.ets.pg_bw_tbl[%d] %d\n", i,
  125. DCBX_PG_BW_GET(features->ets.pg_bw_tbl, i));
  126. for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++)
  127. DP(NETIF_MSG_LINK,
  128. "local_mib.features.ets.pri_pg_tbl[%d] %d\n", i,
  129. DCBX_PRI_PG_GET(features->ets.pri_pg_tbl, i));
  130. /* pfc */
  131. DP(BNX2X_MSG_DCB, "dcbx_features.pfc.pri_en_bitmap %x\n",
  132. features->pfc.pri_en_bitmap);
  133. DP(BNX2X_MSG_DCB, "dcbx_features.pfc.pfc_caps %x\n",
  134. features->pfc.pfc_caps);
  135. DP(BNX2X_MSG_DCB, "dcbx_features.pfc.enabled %x\n",
  136. features->pfc.enabled);
  137. DP(BNX2X_MSG_DCB, "dcbx_features.app.default_pri %x\n",
  138. features->app.default_pri);
  139. DP(BNX2X_MSG_DCB, "dcbx_features.app.tc_supported %x\n",
  140. features->app.tc_supported);
  141. DP(BNX2X_MSG_DCB, "dcbx_features.app.enabled %x\n",
  142. features->app.enabled);
  143. for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
  144. DP(BNX2X_MSG_DCB,
  145. "dcbx_features.app.app_pri_tbl[%x].app_id %x\n",
  146. i, features->app.app_pri_tbl[i].app_id);
  147. DP(BNX2X_MSG_DCB,
  148. "dcbx_features.app.app_pri_tbl[%x].pri_bitmap %x\n",
  149. i, features->app.app_pri_tbl[i].pri_bitmap);
  150. DP(BNX2X_MSG_DCB,
  151. "dcbx_features.app.app_pri_tbl[%x].appBitfield %x\n",
  152. i, features->app.app_pri_tbl[i].appBitfield);
  153. }
  154. }
  155. static void bnx2x_dcbx_get_ap_priority(struct bnx2x *bp,
  156. u8 pri_bitmap,
  157. u8 llfc_traf_type)
  158. {
  159. u32 pri = MAX_PFC_PRIORITIES;
  160. u32 index = MAX_PFC_PRIORITIES - 1;
  161. u32 pri_mask;
  162. u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
  163. /* Choose the highest priority */
  164. while ((MAX_PFC_PRIORITIES == pri) && (0 != index)) {
  165. pri_mask = 1 << index;
  166. if (GET_FLAGS(pri_bitmap, pri_mask))
  167. pri = index ;
  168. index--;
  169. }
  170. if (pri < MAX_PFC_PRIORITIES)
  171. ttp[llfc_traf_type] = max_t(u32, ttp[llfc_traf_type], pri);
  172. }
  173. static void bnx2x_dcbx_get_ap_feature(struct bnx2x *bp,
  174. struct dcbx_app_priority_feature *app,
  175. u32 error) {
  176. u8 index;
  177. u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
  178. if (GET_FLAGS(error, DCBX_LOCAL_APP_ERROR))
  179. DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_ERROR\n");
  180. if (GET_FLAGS(error, DCBX_LOCAL_APP_MISMATCH))
  181. DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_MISMATCH\n");
  182. if (app->enabled &&
  183. !GET_FLAGS(error, DCBX_LOCAL_APP_ERROR | DCBX_LOCAL_APP_MISMATCH)) {
  184. bp->dcbx_port_params.app.enabled = true;
  185. for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
  186. ttp[index] = 0;
  187. if (app->default_pri < MAX_PFC_PRIORITIES)
  188. ttp[LLFC_TRAFFIC_TYPE_NW] = app->default_pri;
  189. for (index = 0 ; index < DCBX_MAX_APP_PROTOCOL; index++) {
  190. struct dcbx_app_priority_entry *entry =
  191. app->app_pri_tbl;
  192. if (GET_FLAGS(entry[index].appBitfield,
  193. DCBX_APP_SF_ETH_TYPE) &&
  194. ETH_TYPE_FCOE == entry[index].app_id)
  195. bnx2x_dcbx_get_ap_priority(bp,
  196. entry[index].pri_bitmap,
  197. LLFC_TRAFFIC_TYPE_FCOE);
  198. if (GET_FLAGS(entry[index].appBitfield,
  199. DCBX_APP_SF_PORT) &&
  200. TCP_PORT_ISCSI == entry[index].app_id)
  201. bnx2x_dcbx_get_ap_priority(bp,
  202. entry[index].pri_bitmap,
  203. LLFC_TRAFFIC_TYPE_ISCSI);
  204. }
  205. } else {
  206. DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_DISABLED\n");
  207. bp->dcbx_port_params.app.enabled = false;
  208. for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
  209. ttp[index] = INVALID_TRAFFIC_TYPE_PRIORITY;
  210. }
  211. }
  212. static void bnx2x_dcbx_get_ets_feature(struct bnx2x *bp,
  213. struct dcbx_ets_feature *ets,
  214. u32 error) {
  215. int i = 0;
  216. u32 pg_pri_orginal_spread[DCBX_MAX_NUM_PG_BW_ENTRIES] = {0};
  217. struct pg_help_data pg_help_data;
  218. struct bnx2x_dcbx_cos_params *cos_params =
  219. bp->dcbx_port_params.ets.cos_params;
  220. memset(&pg_help_data, 0, sizeof(struct pg_help_data));
  221. if (GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR))
  222. DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_ERROR\n");
  223. /* Clean up old settings of ets on COS */
  224. for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params) ; i++) {
  225. cos_params[i].pauseable = false;
  226. cos_params[i].strict = BNX2X_DCBX_STRICT_INVALID;
  227. cos_params[i].bw_tbl = DCBX_INVALID_COS_BW;
  228. cos_params[i].pri_bitmask = 0;
  229. }
  230. if (bp->dcbx_port_params.app.enabled &&
  231. !GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR) &&
  232. ets->enabled) {
  233. DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_ENABLE\n");
  234. bp->dcbx_port_params.ets.enabled = true;
  235. bnx2x_dcbx_get_ets_pri_pg_tbl(bp,
  236. pg_pri_orginal_spread,
  237. ets->pri_pg_tbl);
  238. bnx2x_dcbx_get_num_pg_traf_type(bp,
  239. pg_pri_orginal_spread,
  240. &pg_help_data);
  241. bnx2x_dcbx_fill_cos_params(bp, &pg_help_data,
  242. ets, pg_pri_orginal_spread);
  243. } else {
  244. DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_DISABLED\n");
  245. bp->dcbx_port_params.ets.enabled = false;
  246. ets->pri_pg_tbl[0] = 0;
  247. for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES ; i++)
  248. DCBX_PG_BW_SET(ets->pg_bw_tbl, i, 1);
  249. }
  250. }
  251. static void bnx2x_dcbx_get_pfc_feature(struct bnx2x *bp,
  252. struct dcbx_pfc_feature *pfc, u32 error)
  253. {
  254. if (GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR))
  255. DP(BNX2X_MSG_DCB, "DCBX_LOCAL_PFC_ERROR\n");
  256. if (bp->dcbx_port_params.app.enabled &&
  257. !GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR | DCBX_LOCAL_PFC_MISMATCH) &&
  258. pfc->enabled) {
  259. bp->dcbx_port_params.pfc.enabled = true;
  260. bp->dcbx_port_params.pfc.priority_non_pauseable_mask =
  261. ~(pfc->pri_en_bitmap);
  262. } else {
  263. DP(BNX2X_MSG_DCB, "DCBX_LOCAL_PFC_DISABLED\n");
  264. bp->dcbx_port_params.pfc.enabled = false;
  265. bp->dcbx_port_params.pfc.priority_non_pauseable_mask = 0;
  266. }
  267. }
  268. /* maps unmapped priorities to to the same COS as L2 */
  269. static void bnx2x_dcbx_map_nw(struct bnx2x *bp)
  270. {
  271. int i;
  272. u32 unmapped = (1 << MAX_PFC_PRIORITIES) - 1; /* all ones */
  273. u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
  274. u32 nw_prio = 1 << ttp[LLFC_TRAFFIC_TYPE_NW];
  275. struct bnx2x_dcbx_cos_params *cos_params =
  276. bp->dcbx_port_params.ets.cos_params;
  277. /* get unmapped priorities by clearing mapped bits */
  278. for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
  279. unmapped &= ~(1 << ttp[i]);
  280. /* find cos for nw prio and extend it with unmapped */
  281. for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params); i++) {
  282. if (cos_params[i].pri_bitmask & nw_prio) {
  283. /* extend the bitmask with unmapped */
  284. DP(BNX2X_MSG_DCB,
  285. "cos %d extended with 0x%08x\n", i, unmapped);
  286. cos_params[i].pri_bitmask |= unmapped;
  287. break;
  288. }
  289. }
  290. }
  291. static void bnx2x_get_dcbx_drv_param(struct bnx2x *bp,
  292. struct dcbx_features *features,
  293. u32 error)
  294. {
  295. bnx2x_dcbx_get_ap_feature(bp, &features->app, error);
  296. bnx2x_dcbx_get_pfc_feature(bp, &features->pfc, error);
  297. bnx2x_dcbx_get_ets_feature(bp, &features->ets, error);
  298. bnx2x_dcbx_map_nw(bp);
  299. }
  300. #define DCBX_LOCAL_MIB_MAX_TRY_READ (100)
  301. static int bnx2x_dcbx_read_mib(struct bnx2x *bp,
  302. u32 *base_mib_addr,
  303. u32 offset,
  304. int read_mib_type)
  305. {
  306. int max_try_read = 0;
  307. u32 mib_size, prefix_seq_num, suffix_seq_num;
  308. struct lldp_remote_mib *remote_mib ;
  309. struct lldp_local_mib *local_mib;
  310. switch (read_mib_type) {
  311. case DCBX_READ_LOCAL_MIB:
  312. mib_size = sizeof(struct lldp_local_mib);
  313. break;
  314. case DCBX_READ_REMOTE_MIB:
  315. mib_size = sizeof(struct lldp_remote_mib);
  316. break;
  317. default:
  318. return 1; /*error*/
  319. }
  320. offset += BP_PORT(bp) * mib_size;
  321. do {
  322. bnx2x_read_data(bp, base_mib_addr, offset, mib_size);
  323. max_try_read++;
  324. switch (read_mib_type) {
  325. case DCBX_READ_LOCAL_MIB:
  326. local_mib = (struct lldp_local_mib *) base_mib_addr;
  327. prefix_seq_num = local_mib->prefix_seq_num;
  328. suffix_seq_num = local_mib->suffix_seq_num;
  329. break;
  330. case DCBX_READ_REMOTE_MIB:
  331. remote_mib = (struct lldp_remote_mib *) base_mib_addr;
  332. prefix_seq_num = remote_mib->prefix_seq_num;
  333. suffix_seq_num = remote_mib->suffix_seq_num;
  334. break;
  335. default:
  336. return 1; /*error*/
  337. }
  338. } while ((prefix_seq_num != suffix_seq_num) &&
  339. (max_try_read < DCBX_LOCAL_MIB_MAX_TRY_READ));
  340. if (max_try_read >= DCBX_LOCAL_MIB_MAX_TRY_READ) {
  341. BNX2X_ERR("MIB could not be read\n");
  342. return 1;
  343. }
  344. return 0;
  345. }
  346. static void bnx2x_pfc_set_pfc(struct bnx2x *bp)
  347. {
  348. if (bp->dcbx_port_params.pfc.enabled &&
  349. !(bp->dcbx_error & DCBX_REMOTE_MIB_ERROR))
  350. /*
  351. * 1. Fills up common PFC structures if required
  352. * 2. Configure NIG, MAC and BRB via the elink
  353. */
  354. bnx2x_pfc_set(bp);
  355. else
  356. bnx2x_pfc_clear(bp);
  357. }
  358. static int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp)
  359. {
  360. struct bnx2x_func_state_params func_params = {NULL};
  361. func_params.f_obj = &bp->func_obj;
  362. func_params.cmd = BNX2X_F_CMD_TX_STOP;
  363. DP(BNX2X_MSG_DCB, "STOP TRAFFIC\n");
  364. return bnx2x_func_state_change(bp, &func_params);
  365. }
  366. static int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp)
  367. {
  368. struct bnx2x_func_state_params func_params = {NULL};
  369. struct bnx2x_func_tx_start_params *tx_params =
  370. &func_params.params.tx_start;
  371. func_params.f_obj = &bp->func_obj;
  372. func_params.cmd = BNX2X_F_CMD_TX_START;
  373. bnx2x_dcbx_fw_struct(bp, tx_params);
  374. DP(BNX2X_MSG_DCB, "START TRAFFIC\n");
  375. return bnx2x_func_state_change(bp, &func_params);
  376. }
  377. static void bnx2x_dcbx_2cos_limit_update_ets_config(struct bnx2x *bp)
  378. {
  379. struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
  380. int rc = 0;
  381. if (ets->num_of_cos == 0 || ets->num_of_cos > DCBX_COS_MAX_NUM_E2) {
  382. BNX2X_ERR("Illegal number of COSes %d\n", ets->num_of_cos);
  383. return;
  384. }
  385. /* valid COS entries */
  386. if (ets->num_of_cos == 1) /* no ETS */
  387. return;
  388. /* sanity */
  389. if (((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[0].strict) &&
  390. (DCBX_INVALID_COS_BW == ets->cos_params[0].bw_tbl)) ||
  391. ((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[1].strict) &&
  392. (DCBX_INVALID_COS_BW == ets->cos_params[1].bw_tbl))) {
  393. BNX2X_ERR("all COS should have at least bw_limit or strict"
  394. "ets->cos_params[0].strict= %x"
  395. "ets->cos_params[0].bw_tbl= %x"
  396. "ets->cos_params[1].strict= %x"
  397. "ets->cos_params[1].bw_tbl= %x",
  398. ets->cos_params[0].strict,
  399. ets->cos_params[0].bw_tbl,
  400. ets->cos_params[1].strict,
  401. ets->cos_params[1].bw_tbl);
  402. return;
  403. }
  404. /* If we join a group and there is bw_tbl and strict then bw rules */
  405. if ((DCBX_INVALID_COS_BW != ets->cos_params[0].bw_tbl) &&
  406. (DCBX_INVALID_COS_BW != ets->cos_params[1].bw_tbl)) {
  407. u32 bw_tbl_0 = ets->cos_params[0].bw_tbl;
  408. u32 bw_tbl_1 = ets->cos_params[1].bw_tbl;
  409. /* Do not allow 0-100 configuration
  410. * since PBF does not support it
  411. * force 1-99 instead
  412. */
  413. if (bw_tbl_0 == 0) {
  414. bw_tbl_0 = 1;
  415. bw_tbl_1 = 99;
  416. } else if (bw_tbl_1 == 0) {
  417. bw_tbl_1 = 1;
  418. bw_tbl_0 = 99;
  419. }
  420. bnx2x_ets_bw_limit(&bp->link_params, bw_tbl_0, bw_tbl_1);
  421. } else {
  422. if (ets->cos_params[0].strict == BNX2X_DCBX_STRICT_COS_HIGHEST)
  423. rc = bnx2x_ets_strict(&bp->link_params, 0);
  424. else if (ets->cos_params[1].strict
  425. == BNX2X_DCBX_STRICT_COS_HIGHEST)
  426. rc = bnx2x_ets_strict(&bp->link_params, 1);
  427. if (rc)
  428. BNX2X_ERR("update_ets_params failed\n");
  429. }
  430. }
  431. /*
  432. * In E3B0 the configuration may have more than 2 COS.
  433. */
  434. static void bnx2x_dcbx_update_ets_config(struct bnx2x *bp)
  435. {
  436. struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
  437. struct bnx2x_ets_params ets_params = { 0 };
  438. u8 i;
  439. ets_params.num_of_cos = ets->num_of_cos;
  440. for (i = 0; i < ets->num_of_cos; i++) {
  441. /* COS is SP */
  442. if (ets->cos_params[i].strict != BNX2X_DCBX_STRICT_INVALID) {
  443. if (ets->cos_params[i].bw_tbl != DCBX_INVALID_COS_BW) {
  444. BNX2X_ERR("COS can't be not BW and not SP\n");
  445. return;
  446. }
  447. ets_params.cos[i].state = bnx2x_cos_state_strict;
  448. ets_params.cos[i].params.sp_params.pri =
  449. ets->cos_params[i].strict;
  450. } else { /* COS is BW */
  451. if (ets->cos_params[i].bw_tbl == DCBX_INVALID_COS_BW) {
  452. BNX2X_ERR("COS can't be not BW and not SP\n");
  453. return;
  454. }
  455. ets_params.cos[i].state = bnx2x_cos_state_bw;
  456. ets_params.cos[i].params.bw_params.bw =
  457. (u8)ets->cos_params[i].bw_tbl;
  458. }
  459. }
  460. /* Configure the ETS in HW */
  461. if (bnx2x_ets_e3b0_config(&bp->link_params, &bp->link_vars,
  462. &ets_params)) {
  463. BNX2X_ERR("bnx2x_ets_e3b0_config failed\n");
  464. bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
  465. }
  466. }
  467. static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp)
  468. {
  469. bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
  470. if (!bp->dcbx_port_params.ets.enabled ||
  471. (bp->dcbx_error & DCBX_REMOTE_MIB_ERROR))
  472. return;
  473. if (CHIP_IS_E3B0(bp))
  474. bnx2x_dcbx_update_ets_config(bp);
  475. else
  476. bnx2x_dcbx_2cos_limit_update_ets_config(bp);
  477. }
  478. #ifdef BCM_DCBNL
  479. static int bnx2x_dcbx_read_shmem_remote_mib(struct bnx2x *bp)
  480. {
  481. struct lldp_remote_mib remote_mib = {0};
  482. u32 dcbx_remote_mib_offset = SHMEM2_RD(bp, dcbx_remote_mib_offset);
  483. int rc;
  484. DP(BNX2X_MSG_DCB, "dcbx_remote_mib_offset 0x%x\n",
  485. dcbx_remote_mib_offset);
  486. if (SHMEM_DCBX_REMOTE_MIB_NONE == dcbx_remote_mib_offset) {
  487. BNX2X_ERR("FW doesn't support dcbx_remote_mib_offset\n");
  488. return -EINVAL;
  489. }
  490. rc = bnx2x_dcbx_read_mib(bp, (u32 *)&remote_mib, dcbx_remote_mib_offset,
  491. DCBX_READ_REMOTE_MIB);
  492. if (rc) {
  493. BNX2X_ERR("Faild to read remote mib from FW\n");
  494. return rc;
  495. }
  496. /* save features and flags */
  497. bp->dcbx_remote_feat = remote_mib.features;
  498. bp->dcbx_remote_flags = remote_mib.flags;
  499. return 0;
  500. }
  501. #endif
  502. static int bnx2x_dcbx_read_shmem_neg_results(struct bnx2x *bp)
  503. {
  504. struct lldp_local_mib local_mib = {0};
  505. u32 dcbx_neg_res_offset = SHMEM2_RD(bp, dcbx_neg_res_offset);
  506. int rc;
  507. DP(BNX2X_MSG_DCB, "dcbx_neg_res_offset 0x%x\n", dcbx_neg_res_offset);
  508. if (SHMEM_DCBX_NEG_RES_NONE == dcbx_neg_res_offset) {
  509. BNX2X_ERR("FW doesn't support dcbx_neg_res_offset\n");
  510. return -EINVAL;
  511. }
  512. rc = bnx2x_dcbx_read_mib(bp, (u32 *)&local_mib, dcbx_neg_res_offset,
  513. DCBX_READ_LOCAL_MIB);
  514. if (rc) {
  515. BNX2X_ERR("Faild to read local mib from FW\n");
  516. return rc;
  517. }
  518. /* save features and error */
  519. bp->dcbx_local_feat = local_mib.features;
  520. bp->dcbx_error = local_mib.error;
  521. return 0;
  522. }
  523. #ifdef BCM_DCBNL
  524. static inline
  525. u8 bnx2x_dcbx_dcbnl_app_up(struct dcbx_app_priority_entry *ent)
  526. {
  527. u8 pri;
  528. /* Choose the highest priority */
  529. for (pri = MAX_PFC_PRIORITIES - 1; pri > 0; pri--)
  530. if (ent->pri_bitmap & (1 << pri))
  531. break;
  532. return pri;
  533. }
  534. static inline
  535. u8 bnx2x_dcbx_dcbnl_app_idtype(struct dcbx_app_priority_entry *ent)
  536. {
  537. return ((ent->appBitfield & DCBX_APP_ENTRY_SF_MASK) ==
  538. DCBX_APP_SF_PORT) ? DCB_APP_IDTYPE_PORTNUM :
  539. DCB_APP_IDTYPE_ETHTYPE;
  540. }
  541. int bnx2x_dcbnl_update_applist(struct bnx2x *bp, bool delall)
  542. {
  543. int i, err = 0;
  544. for (i = 0; i < DCBX_MAX_APP_PROTOCOL && err == 0; i++) {
  545. struct dcbx_app_priority_entry *ent =
  546. &bp->dcbx_local_feat.app.app_pri_tbl[i];
  547. if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
  548. u8 up = bnx2x_dcbx_dcbnl_app_up(ent);
  549. /* avoid invalid user-priority */
  550. if (up) {
  551. struct dcb_app app;
  552. app.selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
  553. app.protocol = ent->app_id;
  554. app.priority = delall ? 0 : up;
  555. err = dcb_setapp(bp->dev, &app);
  556. }
  557. }
  558. }
  559. return err;
  560. }
  561. #endif
  562. static inline void bnx2x_dcbx_update_tc_mapping(struct bnx2x *bp)
  563. {
  564. u8 prio, cos;
  565. for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++) {
  566. for (prio = 0; prio < BNX2X_MAX_PRIORITY; prio++) {
  567. if (bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask
  568. & (1 << prio)) {
  569. bp->prio_to_cos[prio] = cos;
  570. DP(BNX2X_MSG_DCB,
  571. "tx_mapping %d --> %d\n", prio, cos);
  572. }
  573. }
  574. }
  575. /* setup tc must be called under rtnl lock, but we can't take it here
  576. * as we are handling an attetntion on a work queue which must be
  577. * flushed at some rtnl-locked contexts (e.g. if down)
  578. */
  579. if (!test_and_set_bit(BNX2X_SP_RTNL_SETUP_TC, &bp->sp_rtnl_state))
  580. schedule_delayed_work(&bp->sp_rtnl_task, 0);
  581. }
  582. void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state)
  583. {
  584. switch (state) {
  585. case BNX2X_DCBX_STATE_NEG_RECEIVED:
  586. {
  587. DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_NEG_RECEIVED\n");
  588. #ifdef BCM_DCBNL
  589. /**
  590. * Delete app tlvs from dcbnl before reading new
  591. * negotiation results
  592. */
  593. bnx2x_dcbnl_update_applist(bp, true);
  594. /* Read rmeote mib if dcbx is in the FW */
  595. if (bnx2x_dcbx_read_shmem_remote_mib(bp))
  596. return;
  597. #endif
  598. /* Read neg results if dcbx is in the FW */
  599. if (bnx2x_dcbx_read_shmem_neg_results(bp))
  600. return;
  601. bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
  602. bp->dcbx_error);
  603. bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
  604. bp->dcbx_error);
  605. /* mark DCBX result for PMF migration */
  606. bnx2x_update_drv_flags(bp,
  607. 1 << DRV_FLAGS_DCB_CONFIGURED,
  608. 1);
  609. #ifdef BCM_DCBNL
  610. /*
  611. * Add new app tlvs to dcbnl
  612. */
  613. bnx2x_dcbnl_update_applist(bp, false);
  614. #endif
  615. /*
  616. * reconfigure the netdevice with the results of the new
  617. * dcbx negotiation.
  618. */
  619. bnx2x_dcbx_update_tc_mapping(bp);
  620. /*
  621. * allow other funtions to update their netdevices
  622. * accordingly
  623. */
  624. if (IS_MF(bp))
  625. bnx2x_link_sync_notify(bp);
  626. bnx2x_dcbx_stop_hw_tx(bp);
  627. return;
  628. }
  629. case BNX2X_DCBX_STATE_TX_PAUSED:
  630. DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_TX_PAUSED\n");
  631. bnx2x_pfc_set_pfc(bp);
  632. bnx2x_dcbx_update_ets_params(bp);
  633. bnx2x_dcbx_resume_hw_tx(bp);
  634. return;
  635. case BNX2X_DCBX_STATE_TX_RELEASED:
  636. DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_TX_RELEASED\n");
  637. bnx2x_fw_command(bp, DRV_MSG_CODE_DCBX_PMF_DRV_OK, 0);
  638. #ifdef BCM_DCBNL
  639. /*
  640. * Send a notification for the new negotiated parameters
  641. */
  642. dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0);
  643. #endif
  644. return;
  645. default:
  646. BNX2X_ERR("Unknown DCBX_STATE\n");
  647. }
  648. }
  649. #define LLDP_ADMIN_MIB_OFFSET(bp) (PORT_MAX*sizeof(struct lldp_params) + \
  650. BP_PORT(bp)*sizeof(struct lldp_admin_mib))
  651. static void bnx2x_dcbx_admin_mib_updated_params(struct bnx2x *bp,
  652. u32 dcbx_lldp_params_offset)
  653. {
  654. struct lldp_admin_mib admin_mib;
  655. u32 i, other_traf_type = PREDEFINED_APP_IDX_MAX, traf_type = 0;
  656. u32 offset = dcbx_lldp_params_offset + LLDP_ADMIN_MIB_OFFSET(bp);
  657. /*shortcuts*/
  658. struct dcbx_features *af = &admin_mib.features;
  659. struct bnx2x_config_dcbx_params *dp = &bp->dcbx_config_params;
  660. memset(&admin_mib, 0, sizeof(struct lldp_admin_mib));
  661. /* Read the data first */
  662. bnx2x_read_data(bp, (u32 *)&admin_mib, offset,
  663. sizeof(struct lldp_admin_mib));
  664. if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON)
  665. SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
  666. else
  667. RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
  668. if (dp->overwrite_settings == BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE) {
  669. RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_CEE_VERSION_MASK);
  670. admin_mib.ver_cfg_flags |=
  671. (dp->admin_dcbx_version << DCBX_CEE_VERSION_SHIFT) &
  672. DCBX_CEE_VERSION_MASK;
  673. af->ets.enabled = (u8)dp->admin_ets_enable;
  674. af->pfc.enabled = (u8)dp->admin_pfc_enable;
  675. /* FOR IEEE dp->admin_tc_supported_tx_enable */
  676. if (dp->admin_ets_configuration_tx_enable)
  677. SET_FLAGS(admin_mib.ver_cfg_flags,
  678. DCBX_ETS_CONFIG_TX_ENABLED);
  679. else
  680. RESET_FLAGS(admin_mib.ver_cfg_flags,
  681. DCBX_ETS_CONFIG_TX_ENABLED);
  682. /* For IEEE admin_ets_recommendation_tx_enable */
  683. if (dp->admin_pfc_tx_enable)
  684. SET_FLAGS(admin_mib.ver_cfg_flags,
  685. DCBX_PFC_CONFIG_TX_ENABLED);
  686. else
  687. RESET_FLAGS(admin_mib.ver_cfg_flags,
  688. DCBX_PFC_CONFIG_TX_ENABLED);
  689. if (dp->admin_application_priority_tx_enable)
  690. SET_FLAGS(admin_mib.ver_cfg_flags,
  691. DCBX_APP_CONFIG_TX_ENABLED);
  692. else
  693. RESET_FLAGS(admin_mib.ver_cfg_flags,
  694. DCBX_APP_CONFIG_TX_ENABLED);
  695. if (dp->admin_ets_willing)
  696. SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
  697. else
  698. RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
  699. /* For IEEE admin_ets_reco_valid */
  700. if (dp->admin_pfc_willing)
  701. SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
  702. else
  703. RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
  704. if (dp->admin_app_priority_willing)
  705. SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
  706. else
  707. RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
  708. for (i = 0 ; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++) {
  709. DCBX_PG_BW_SET(af->ets.pg_bw_tbl, i,
  710. (u8)dp->admin_configuration_bw_precentage[i]);
  711. DP(BNX2X_MSG_DCB, "pg_bw_tbl[%d] = %02x\n",
  712. i, DCBX_PG_BW_GET(af->ets.pg_bw_tbl, i));
  713. }
  714. for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
  715. DCBX_PRI_PG_SET(af->ets.pri_pg_tbl, i,
  716. (u8)dp->admin_configuration_ets_pg[i]);
  717. DP(BNX2X_MSG_DCB, "pri_pg_tbl[%d] = %02x\n",
  718. i, DCBX_PRI_PG_GET(af->ets.pri_pg_tbl, i));
  719. }
  720. /*For IEEE admin_recommendation_bw_precentage
  721. *For IEEE admin_recommendation_ets_pg */
  722. af->pfc.pri_en_bitmap = (u8)dp->admin_pfc_bitmap;
  723. for (i = 0; i < DCBX_CONFIG_MAX_APP_PROTOCOL; i++) {
  724. if (dp->admin_priority_app_table[i].valid) {
  725. struct bnx2x_admin_priority_app_table *table =
  726. dp->admin_priority_app_table;
  727. if ((ETH_TYPE_FCOE == table[i].app_id) &&
  728. (TRAFFIC_TYPE_ETH == table[i].traffic_type))
  729. traf_type = FCOE_APP_IDX;
  730. else if ((TCP_PORT_ISCSI == table[i].app_id) &&
  731. (TRAFFIC_TYPE_PORT == table[i].traffic_type))
  732. traf_type = ISCSI_APP_IDX;
  733. else
  734. traf_type = other_traf_type++;
  735. af->app.app_pri_tbl[traf_type].app_id =
  736. table[i].app_id;
  737. af->app.app_pri_tbl[traf_type].pri_bitmap =
  738. (u8)(1 << table[i].priority);
  739. af->app.app_pri_tbl[traf_type].appBitfield =
  740. (DCBX_APP_ENTRY_VALID);
  741. af->app.app_pri_tbl[traf_type].appBitfield |=
  742. (TRAFFIC_TYPE_ETH == table[i].traffic_type) ?
  743. DCBX_APP_SF_ETH_TYPE : DCBX_APP_SF_PORT;
  744. }
  745. }
  746. af->app.default_pri = (u8)dp->admin_default_priority;
  747. }
  748. /* Write the data. */
  749. bnx2x_write_data(bp, (u32 *)&admin_mib, offset,
  750. sizeof(struct lldp_admin_mib));
  751. }
  752. void bnx2x_dcbx_set_state(struct bnx2x *bp, bool dcb_on, u32 dcbx_enabled)
  753. {
  754. if (!CHIP_IS_E1x(bp)) {
  755. bp->dcb_state = dcb_on;
  756. bp->dcbx_enabled = dcbx_enabled;
  757. } else {
  758. bp->dcb_state = false;
  759. bp->dcbx_enabled = BNX2X_DCBX_ENABLED_INVALID;
  760. }
  761. DP(BNX2X_MSG_DCB, "DCB state [%s:%s]\n",
  762. dcb_on ? "ON" : "OFF",
  763. dcbx_enabled == BNX2X_DCBX_ENABLED_OFF ? "user-mode" :
  764. dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF ? "on-chip static" :
  765. dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON ?
  766. "on-chip with negotiation" : "invalid");
  767. }
  768. void bnx2x_dcbx_init_params(struct bnx2x *bp)
  769. {
  770. bp->dcbx_config_params.admin_dcbx_version = 0x0; /* 0 - CEE; 1 - IEEE */
  771. bp->dcbx_config_params.admin_ets_willing = 1;
  772. bp->dcbx_config_params.admin_pfc_willing = 1;
  773. bp->dcbx_config_params.overwrite_settings = 1;
  774. bp->dcbx_config_params.admin_ets_enable = 1;
  775. bp->dcbx_config_params.admin_pfc_enable = 1;
  776. bp->dcbx_config_params.admin_tc_supported_tx_enable = 1;
  777. bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
  778. bp->dcbx_config_params.admin_pfc_tx_enable = 1;
  779. bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
  780. bp->dcbx_config_params.admin_ets_reco_valid = 1;
  781. bp->dcbx_config_params.admin_app_priority_willing = 1;
  782. bp->dcbx_config_params.admin_configuration_bw_precentage[0] = 100;
  783. bp->dcbx_config_params.admin_configuration_bw_precentage[1] = 0;
  784. bp->dcbx_config_params.admin_configuration_bw_precentage[2] = 0;
  785. bp->dcbx_config_params.admin_configuration_bw_precentage[3] = 0;
  786. bp->dcbx_config_params.admin_configuration_bw_precentage[4] = 0;
  787. bp->dcbx_config_params.admin_configuration_bw_precentage[5] = 0;
  788. bp->dcbx_config_params.admin_configuration_bw_precentage[6] = 0;
  789. bp->dcbx_config_params.admin_configuration_bw_precentage[7] = 0;
  790. bp->dcbx_config_params.admin_configuration_ets_pg[0] = 0;
  791. bp->dcbx_config_params.admin_configuration_ets_pg[1] = 0;
  792. bp->dcbx_config_params.admin_configuration_ets_pg[2] = 0;
  793. bp->dcbx_config_params.admin_configuration_ets_pg[3] = 0;
  794. bp->dcbx_config_params.admin_configuration_ets_pg[4] = 0;
  795. bp->dcbx_config_params.admin_configuration_ets_pg[5] = 0;
  796. bp->dcbx_config_params.admin_configuration_ets_pg[6] = 0;
  797. bp->dcbx_config_params.admin_configuration_ets_pg[7] = 0;
  798. bp->dcbx_config_params.admin_recommendation_bw_precentage[0] = 100;
  799. bp->dcbx_config_params.admin_recommendation_bw_precentage[1] = 0;
  800. bp->dcbx_config_params.admin_recommendation_bw_precentage[2] = 0;
  801. bp->dcbx_config_params.admin_recommendation_bw_precentage[3] = 0;
  802. bp->dcbx_config_params.admin_recommendation_bw_precentage[4] = 0;
  803. bp->dcbx_config_params.admin_recommendation_bw_precentage[5] = 0;
  804. bp->dcbx_config_params.admin_recommendation_bw_precentage[6] = 0;
  805. bp->dcbx_config_params.admin_recommendation_bw_precentage[7] = 0;
  806. bp->dcbx_config_params.admin_recommendation_ets_pg[0] = 0;
  807. bp->dcbx_config_params.admin_recommendation_ets_pg[1] = 1;
  808. bp->dcbx_config_params.admin_recommendation_ets_pg[2] = 2;
  809. bp->dcbx_config_params.admin_recommendation_ets_pg[3] = 3;
  810. bp->dcbx_config_params.admin_recommendation_ets_pg[4] = 4;
  811. bp->dcbx_config_params.admin_recommendation_ets_pg[5] = 5;
  812. bp->dcbx_config_params.admin_recommendation_ets_pg[6] = 6;
  813. bp->dcbx_config_params.admin_recommendation_ets_pg[7] = 7;
  814. bp->dcbx_config_params.admin_pfc_bitmap = 0x0;
  815. bp->dcbx_config_params.admin_priority_app_table[0].valid = 0;
  816. bp->dcbx_config_params.admin_priority_app_table[1].valid = 0;
  817. bp->dcbx_config_params.admin_priority_app_table[2].valid = 0;
  818. bp->dcbx_config_params.admin_priority_app_table[3].valid = 0;
  819. bp->dcbx_config_params.admin_default_priority = 0;
  820. }
  821. void bnx2x_dcbx_init(struct bnx2x *bp)
  822. {
  823. u32 dcbx_lldp_params_offset = SHMEM_LLDP_DCBX_PARAMS_NONE;
  824. if (bp->dcbx_enabled <= 0)
  825. return;
  826. /* validate:
  827. * chip of good for dcbx version,
  828. * dcb is wanted
  829. * the function is pmf
  830. * shmem2 contains DCBX support fields
  831. */
  832. DP(BNX2X_MSG_DCB, "dcb_state %d bp->port.pmf %d\n",
  833. bp->dcb_state, bp->port.pmf);
  834. if (bp->dcb_state == BNX2X_DCB_STATE_ON && bp->port.pmf &&
  835. SHMEM2_HAS(bp, dcbx_lldp_params_offset)) {
  836. dcbx_lldp_params_offset =
  837. SHMEM2_RD(bp, dcbx_lldp_params_offset);
  838. DP(BNX2X_MSG_DCB, "dcbx_lldp_params_offset 0x%x\n",
  839. dcbx_lldp_params_offset);
  840. bnx2x_update_drv_flags(bp, 1 << DRV_FLAGS_DCB_CONFIGURED, 0);
  841. if (SHMEM_LLDP_DCBX_PARAMS_NONE != dcbx_lldp_params_offset) {
  842. bnx2x_dcbx_admin_mib_updated_params(bp,
  843. dcbx_lldp_params_offset);
  844. /* Let HW start negotiation */
  845. bnx2x_fw_command(bp,
  846. DRV_MSG_CODE_DCBX_ADMIN_PMF_MSG, 0);
  847. }
  848. }
  849. }
  850. static void
  851. bnx2x_dcbx_print_cos_params(struct bnx2x *bp,
  852. struct bnx2x_func_tx_start_params *pfc_fw_cfg)
  853. {
  854. u8 pri = 0;
  855. u8 cos = 0;
  856. DP(BNX2X_MSG_DCB,
  857. "pfc_fw_cfg->dcb_version %x\n", pfc_fw_cfg->dcb_version);
  858. DP(BNX2X_MSG_DCB,
  859. "pdev->params.dcbx_port_params.pfc.priority_non_pauseable_mask %x\n",
  860. bp->dcbx_port_params.pfc.priority_non_pauseable_mask);
  861. for (cos = 0 ; cos < bp->dcbx_port_params.ets.num_of_cos ; cos++) {
  862. DP(BNX2X_MSG_DCB,
  863. "pdev->params.dcbx_port_params.ets.cos_params[%d].pri_bitmask %x\n",
  864. cos, bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask);
  865. DP(BNX2X_MSG_DCB,
  866. "pdev->params.dcbx_port_params.ets.cos_params[%d].bw_tbl %x\n",
  867. cos, bp->dcbx_port_params.ets.cos_params[cos].bw_tbl);
  868. DP(BNX2X_MSG_DCB,
  869. "pdev->params.dcbx_port_params.ets.cos_params[%d].strict %x\n",
  870. cos, bp->dcbx_port_params.ets.cos_params[cos].strict);
  871. DP(BNX2X_MSG_DCB,
  872. "pdev->params.dcbx_port_params.ets.cos_params[%d].pauseable %x\n",
  873. cos, bp->dcbx_port_params.ets.cos_params[cos].pauseable);
  874. }
  875. for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
  876. DP(BNX2X_MSG_DCB,
  877. "pfc_fw_cfg->traffic_type_to_priority_cos[%d].priority %x\n",
  878. pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].priority);
  879. DP(BNX2X_MSG_DCB,
  880. "pfc_fw_cfg->traffic_type_to_priority_cos[%d].cos %x\n",
  881. pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].cos);
  882. }
  883. }
  884. /* fills help_data according to pg_info */
  885. static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
  886. u32 *pg_pri_orginal_spread,
  887. struct pg_help_data *help_data)
  888. {
  889. bool pg_found = false;
  890. u32 i, traf_type, add_traf_type, add_pg;
  891. u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
  892. struct pg_entry_help_data *data = help_data->data; /*shotcut*/
  893. /* Set to invalid */
  894. for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
  895. data[i].pg = DCBX_ILLEGAL_PG;
  896. for (add_traf_type = 0;
  897. add_traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX; add_traf_type++) {
  898. pg_found = false;
  899. if (ttp[add_traf_type] < MAX_PFC_PRIORITIES) {
  900. add_pg = (u8)pg_pri_orginal_spread[ttp[add_traf_type]];
  901. for (traf_type = 0;
  902. traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX;
  903. traf_type++) {
  904. if (data[traf_type].pg == add_pg) {
  905. if (!(data[traf_type].pg_priority &
  906. (1 << ttp[add_traf_type])))
  907. data[traf_type].
  908. num_of_dif_pri++;
  909. data[traf_type].pg_priority |=
  910. (1 << ttp[add_traf_type]);
  911. pg_found = true;
  912. break;
  913. }
  914. }
  915. if (false == pg_found) {
  916. data[help_data->num_of_pg].pg = add_pg;
  917. data[help_data->num_of_pg].pg_priority =
  918. (1 << ttp[add_traf_type]);
  919. data[help_data->num_of_pg].num_of_dif_pri = 1;
  920. help_data->num_of_pg++;
  921. }
  922. }
  923. DP(BNX2X_MSG_DCB,
  924. "add_traf_type %d pg_found %s num_of_pg %d\n",
  925. add_traf_type, (false == pg_found) ? "NO" : "YES",
  926. help_data->num_of_pg);
  927. }
  928. }
  929. static void bnx2x_dcbx_ets_disabled_entry_data(struct bnx2x *bp,
  930. struct cos_help_data *cos_data,
  931. u32 pri_join_mask)
  932. {
  933. /* Only one priority than only one COS */
  934. cos_data->data[0].pausable =
  935. IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
  936. cos_data->data[0].pri_join_mask = pri_join_mask;
  937. cos_data->data[0].cos_bw = 100;
  938. cos_data->num_of_cos = 1;
  939. }
  940. static inline void bnx2x_dcbx_add_to_cos_bw(struct bnx2x *bp,
  941. struct cos_entry_help_data *data,
  942. u8 pg_bw)
  943. {
  944. if (data->cos_bw == DCBX_INVALID_COS_BW)
  945. data->cos_bw = pg_bw;
  946. else
  947. data->cos_bw += pg_bw;
  948. }
  949. static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
  950. struct cos_help_data *cos_data,
  951. u32 *pg_pri_orginal_spread,
  952. struct dcbx_ets_feature *ets)
  953. {
  954. u32 pri_tested = 0;
  955. u8 i = 0;
  956. u8 entry = 0;
  957. u8 pg_entry = 0;
  958. u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX;
  959. cos_data->data[0].pausable = true;
  960. cos_data->data[1].pausable = false;
  961. cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
  962. for (i = 0 ; i < num_of_pri ; i++) {
  963. pri_tested = 1 << bp->dcbx_port_params.
  964. app.traffic_type_priority[i];
  965. if (pri_tested & DCBX_PFC_PRI_NON_PAUSE_MASK(bp)) {
  966. cos_data->data[1].pri_join_mask |= pri_tested;
  967. entry = 1;
  968. } else {
  969. cos_data->data[0].pri_join_mask |= pri_tested;
  970. entry = 0;
  971. }
  972. pg_entry = (u8)pg_pri_orginal_spread[bp->dcbx_port_params.
  973. app.traffic_type_priority[i]];
  974. /* There can be only one strict pg */
  975. if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES)
  976. bnx2x_dcbx_add_to_cos_bw(bp, &cos_data->data[entry],
  977. DCBX_PG_BW_GET(ets->pg_bw_tbl, pg_entry));
  978. else
  979. /* If we join a group and one is strict
  980. * than the bw rulls */
  981. cos_data->data[entry].strict =
  982. BNX2X_DCBX_STRICT_COS_HIGHEST;
  983. }
  984. if ((0 == cos_data->data[0].pri_join_mask) &&
  985. (0 == cos_data->data[1].pri_join_mask))
  986. BNX2X_ERR("dcbx error: Both groups must have priorities\n");
  987. }
  988. #ifndef POWER_OF_2
  989. #define POWER_OF_2(x) ((0 != x) && (0 == (x & (x-1))))
  990. #endif
  991. static void bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(struct bnx2x *bp,
  992. struct pg_help_data *pg_help_data,
  993. struct cos_help_data *cos_data,
  994. u32 pri_join_mask,
  995. u8 num_of_dif_pri)
  996. {
  997. u8 i = 0;
  998. u32 pri_tested = 0;
  999. u32 pri_mask_without_pri = 0;
  1000. u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
  1001. /*debug*/
  1002. if (num_of_dif_pri == 1) {
  1003. bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data, pri_join_mask);
  1004. return;
  1005. }
  1006. /* single priority group */
  1007. if (pg_help_data->data[0].pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
  1008. /* If there are both pauseable and non-pauseable priorities,
  1009. * the pauseable priorities go to the first queue and
  1010. * the non-pauseable priorities go to the second queue.
  1011. */
  1012. if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
  1013. /* Pauseable */
  1014. cos_data->data[0].pausable = true;
  1015. /* Non pauseable.*/
  1016. cos_data->data[1].pausable = false;
  1017. if (2 == num_of_dif_pri) {
  1018. cos_data->data[0].cos_bw = 50;
  1019. cos_data->data[1].cos_bw = 50;
  1020. }
  1021. if (3 == num_of_dif_pri) {
  1022. if (POWER_OF_2(DCBX_PFC_PRI_GET_PAUSE(bp,
  1023. pri_join_mask))) {
  1024. cos_data->data[0].cos_bw = 33;
  1025. cos_data->data[1].cos_bw = 67;
  1026. } else {
  1027. cos_data->data[0].cos_bw = 67;
  1028. cos_data->data[1].cos_bw = 33;
  1029. }
  1030. }
  1031. } else if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask)) {
  1032. /* If there are only pauseable priorities,
  1033. * then one/two priorities go to the first queue
  1034. * and one priority goes to the second queue.
  1035. */
  1036. if (2 == num_of_dif_pri) {
  1037. cos_data->data[0].cos_bw = 50;
  1038. cos_data->data[1].cos_bw = 50;
  1039. } else {
  1040. cos_data->data[0].cos_bw = 67;
  1041. cos_data->data[1].cos_bw = 33;
  1042. }
  1043. cos_data->data[1].pausable = true;
  1044. cos_data->data[0].pausable = true;
  1045. /* All priorities except FCOE */
  1046. cos_data->data[0].pri_join_mask = (pri_join_mask &
  1047. ((u8)~(1 << ttp[LLFC_TRAFFIC_TYPE_FCOE])));
  1048. /* Only FCOE priority.*/
  1049. cos_data->data[1].pri_join_mask =
  1050. (1 << ttp[LLFC_TRAFFIC_TYPE_FCOE]);
  1051. } else
  1052. /* If there are only non-pauseable priorities,
  1053. * they will all go to the same queue.
  1054. */
  1055. bnx2x_dcbx_ets_disabled_entry_data(bp,
  1056. cos_data, pri_join_mask);
  1057. } else {
  1058. /* priority group which is not BW limited (PG#15):*/
  1059. if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
  1060. /* If there are both pauseable and non-pauseable
  1061. * priorities, the pauseable priorities go to the first
  1062. * queue and the non-pauseable priorities
  1063. * go to the second queue.
  1064. */
  1065. if (DCBX_PFC_PRI_GET_PAUSE(bp, pri_join_mask) >
  1066. DCBX_PFC_PRI_GET_NON_PAUSE(bp, pri_join_mask)) {
  1067. cos_data->data[0].strict =
  1068. BNX2X_DCBX_STRICT_COS_HIGHEST;
  1069. cos_data->data[1].strict =
  1070. BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
  1071. BNX2X_DCBX_STRICT_COS_HIGHEST);
  1072. } else {
  1073. cos_data->data[0].strict =
  1074. BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
  1075. BNX2X_DCBX_STRICT_COS_HIGHEST);
  1076. cos_data->data[1].strict =
  1077. BNX2X_DCBX_STRICT_COS_HIGHEST;
  1078. }
  1079. /* Pauseable */
  1080. cos_data->data[0].pausable = true;
  1081. /* Non pause-able.*/
  1082. cos_data->data[1].pausable = false;
  1083. } else {
  1084. /* If there are only pauseable priorities or
  1085. * only non-pauseable,* the lower priorities go
  1086. * to the first queue and the higherpriorities go
  1087. * to the second queue.
  1088. */
  1089. cos_data->data[0].pausable =
  1090. cos_data->data[1].pausable =
  1091. IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
  1092. for (i = 0 ; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++) {
  1093. pri_tested = 1 << bp->dcbx_port_params.
  1094. app.traffic_type_priority[i];
  1095. /* Remove priority tested */
  1096. pri_mask_without_pri =
  1097. (pri_join_mask & ((u8)(~pri_tested)));
  1098. if (pri_mask_without_pri < pri_tested)
  1099. break;
  1100. }
  1101. if (i == LLFC_DRIVER_TRAFFIC_TYPE_MAX)
  1102. BNX2X_ERR("Invalid value for pri_join_mask - could not find a priority\n");
  1103. cos_data->data[0].pri_join_mask = pri_mask_without_pri;
  1104. cos_data->data[1].pri_join_mask = pri_tested;
  1105. /* Both queues are strict priority,
  1106. * and that with the highest priority
  1107. * gets the highest strict priority in the arbiter.
  1108. */
  1109. cos_data->data[0].strict =
  1110. BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
  1111. BNX2X_DCBX_STRICT_COS_HIGHEST);
  1112. cos_data->data[1].strict =
  1113. BNX2X_DCBX_STRICT_COS_HIGHEST;
  1114. }
  1115. }
  1116. }
  1117. static void bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params(
  1118. struct bnx2x *bp,
  1119. struct pg_help_data *pg_help_data,
  1120. struct dcbx_ets_feature *ets,
  1121. struct cos_help_data *cos_data,
  1122. u32 *pg_pri_orginal_spread,
  1123. u32 pri_join_mask,
  1124. u8 num_of_dif_pri)
  1125. {
  1126. u8 i = 0;
  1127. u8 pg[DCBX_COS_MAX_NUM_E2] = { 0 };
  1128. /* If there are both pauseable and non-pauseable priorities,
  1129. * the pauseable priorities go to the first queue and
  1130. * the non-pauseable priorities go to the second queue.
  1131. */
  1132. if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
  1133. if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
  1134. pg_help_data->data[0].pg_priority) ||
  1135. IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
  1136. pg_help_data->data[1].pg_priority)) {
  1137. /* If one PG contains both pauseable and
  1138. * non-pauseable priorities then ETS is disabled.
  1139. */
  1140. bnx2x_dcbx_separate_pauseable_from_non(bp, cos_data,
  1141. pg_pri_orginal_spread, ets);
  1142. bp->dcbx_port_params.ets.enabled = false;
  1143. return;
  1144. }
  1145. /* Pauseable */
  1146. cos_data->data[0].pausable = true;
  1147. /* Non pauseable. */
  1148. cos_data->data[1].pausable = false;
  1149. if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp,
  1150. pg_help_data->data[0].pg_priority)) {
  1151. /* 0 is pauseable */
  1152. cos_data->data[0].pri_join_mask =
  1153. pg_help_data->data[0].pg_priority;
  1154. pg[0] = pg_help_data->data[0].pg;
  1155. cos_data->data[1].pri_join_mask =
  1156. pg_help_data->data[1].pg_priority;
  1157. pg[1] = pg_help_data->data[1].pg;
  1158. } else {/* 1 is pauseable */
  1159. cos_data->data[0].pri_join_mask =
  1160. pg_help_data->data[1].pg_priority;
  1161. pg[0] = pg_help_data->data[1].pg;
  1162. cos_data->data[1].pri_join_mask =
  1163. pg_help_data->data[0].pg_priority;
  1164. pg[1] = pg_help_data->data[0].pg;
  1165. }
  1166. } else {
  1167. /* If there are only pauseable priorities or
  1168. * only non-pauseable, each PG goes to a queue.
  1169. */
  1170. cos_data->data[0].pausable = cos_data->data[1].pausable =
  1171. IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
  1172. cos_data->data[0].pri_join_mask =
  1173. pg_help_data->data[0].pg_priority;
  1174. pg[0] = pg_help_data->data[0].pg;
  1175. cos_data->data[1].pri_join_mask =
  1176. pg_help_data->data[1].pg_priority;
  1177. pg[1] = pg_help_data->data[1].pg;
  1178. }
  1179. /* There can be only one strict pg */
  1180. for (i = 0 ; i < ARRAY_SIZE(pg); i++) {
  1181. if (pg[i] < DCBX_MAX_NUM_PG_BW_ENTRIES)
  1182. cos_data->data[i].cos_bw =
  1183. DCBX_PG_BW_GET(ets->pg_bw_tbl, pg[i]);
  1184. else
  1185. cos_data->data[i].strict =
  1186. BNX2X_DCBX_STRICT_COS_HIGHEST;
  1187. }
  1188. }
  1189. static int bnx2x_dcbx_join_pgs(
  1190. struct bnx2x *bp,
  1191. struct dcbx_ets_feature *ets,
  1192. struct pg_help_data *pg_help_data,
  1193. u8 required_num_of_pg)
  1194. {
  1195. u8 entry_joined = pg_help_data->num_of_pg - 1;
  1196. u8 entry_removed = entry_joined + 1;
  1197. u8 pg_joined = 0;
  1198. if (required_num_of_pg == 0 || ARRAY_SIZE(pg_help_data->data)
  1199. <= pg_help_data->num_of_pg) {
  1200. BNX2X_ERR("required_num_of_pg can't be zero\n");
  1201. return -EINVAL;
  1202. }
  1203. while (required_num_of_pg < pg_help_data->num_of_pg) {
  1204. entry_joined = pg_help_data->num_of_pg - 2;
  1205. entry_removed = entry_joined + 1;
  1206. /* protect index */
  1207. entry_removed %= ARRAY_SIZE(pg_help_data->data);
  1208. pg_help_data->data[entry_joined].pg_priority |=
  1209. pg_help_data->data[entry_removed].pg_priority;
  1210. pg_help_data->data[entry_joined].num_of_dif_pri +=
  1211. pg_help_data->data[entry_removed].num_of_dif_pri;
  1212. if (pg_help_data->data[entry_joined].pg == DCBX_STRICT_PRI_PG ||
  1213. pg_help_data->data[entry_removed].pg == DCBX_STRICT_PRI_PG)
  1214. /* Entries joined strict priority rules */
  1215. pg_help_data->data[entry_joined].pg =
  1216. DCBX_STRICT_PRI_PG;
  1217. else {
  1218. /* Entries can be joined join BW */
  1219. pg_joined = DCBX_PG_BW_GET(ets->pg_bw_tbl,
  1220. pg_help_data->data[entry_joined].pg) +
  1221. DCBX_PG_BW_GET(ets->pg_bw_tbl,
  1222. pg_help_data->data[entry_removed].pg);
  1223. DCBX_PG_BW_SET(ets->pg_bw_tbl,
  1224. pg_help_data->data[entry_joined].pg, pg_joined);
  1225. }
  1226. /* Joined the entries */
  1227. pg_help_data->num_of_pg--;
  1228. }
  1229. return 0;
  1230. }
  1231. static void bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
  1232. struct bnx2x *bp,
  1233. struct pg_help_data *pg_help_data,
  1234. struct dcbx_ets_feature *ets,
  1235. struct cos_help_data *cos_data,
  1236. u32 *pg_pri_orginal_spread,
  1237. u32 pri_join_mask,
  1238. u8 num_of_dif_pri)
  1239. {
  1240. u8 i = 0;
  1241. u32 pri_tested = 0;
  1242. u8 entry = 0;
  1243. u8 pg_entry = 0;
  1244. bool b_found_strict = false;
  1245. u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX;
  1246. cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
  1247. /* If there are both pauseable and non-pauseable priorities,
  1248. * the pauseable priorities go to the first queue and the
  1249. * non-pauseable priorities go to the second queue.
  1250. */
  1251. if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask))
  1252. bnx2x_dcbx_separate_pauseable_from_non(bp,
  1253. cos_data, pg_pri_orginal_spread, ets);
  1254. else {
  1255. /* If two BW-limited PG-s were combined to one queue,
  1256. * the BW is their sum.
  1257. *
  1258. * If there are only pauseable priorities or only non-pauseable,
  1259. * and there are both BW-limited and non-BW-limited PG-s,
  1260. * the BW-limited PG/s go to one queue and the non-BW-limited
  1261. * PG/s go to the second queue.
  1262. *
  1263. * If there are only pauseable priorities or only non-pauseable
  1264. * and all are BW limited, then two priorities go to the first
  1265. * queue and one priority goes to the second queue.
  1266. *
  1267. * We will join this two cases:
  1268. * if one is BW limited it will go to the secoend queue
  1269. * otherwise the last priority will get it
  1270. */
  1271. cos_data->data[0].pausable = cos_data->data[1].pausable =
  1272. IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
  1273. for (i = 0 ; i < num_of_pri; i++) {
  1274. pri_tested = 1 << bp->dcbx_port_params.
  1275. app.traffic_type_priority[i];
  1276. pg_entry = (u8)pg_pri_orginal_spread[bp->
  1277. dcbx_port_params.app.traffic_type_priority[i]];
  1278. if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES) {
  1279. entry = 0;
  1280. if (i == (num_of_pri-1) &&
  1281. false == b_found_strict)
  1282. /* last entry will be handled separately
  1283. * If no priority is strict than last
  1284. * enty goes to last queue.*/
  1285. entry = 1;
  1286. cos_data->data[entry].pri_join_mask |=
  1287. pri_tested;
  1288. bnx2x_dcbx_add_to_cos_bw(bp,
  1289. &cos_data->data[entry],
  1290. DCBX_PG_BW_GET(ets->pg_bw_tbl,
  1291. pg_entry));
  1292. } else {
  1293. b_found_strict = true;
  1294. cos_data->data[1].pri_join_mask |= pri_tested;
  1295. /* If we join a group and one is strict
  1296. * than the bw rulls */
  1297. cos_data->data[1].strict =
  1298. BNX2X_DCBX_STRICT_COS_HIGHEST;
  1299. }
  1300. }
  1301. }
  1302. }
  1303. static void bnx2x_dcbx_2cos_limit_cee_fill_cos_params(struct bnx2x *bp,
  1304. struct pg_help_data *help_data,
  1305. struct dcbx_ets_feature *ets,
  1306. struct cos_help_data *cos_data,
  1307. u32 *pg_pri_orginal_spread,
  1308. u32 pri_join_mask,
  1309. u8 num_of_dif_pri)
  1310. {
  1311. /* default E2 settings */
  1312. cos_data->num_of_cos = DCBX_COS_MAX_NUM_E2;
  1313. switch (help_data->num_of_pg) {
  1314. case 1:
  1315. bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(
  1316. bp,
  1317. help_data,
  1318. cos_data,
  1319. pri_join_mask,
  1320. num_of_dif_pri);
  1321. break;
  1322. case 2:
  1323. bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params(
  1324. bp,
  1325. help_data,
  1326. ets,
  1327. cos_data,
  1328. pg_pri_orginal_spread,
  1329. pri_join_mask,
  1330. num_of_dif_pri);
  1331. break;
  1332. case 3:
  1333. bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
  1334. bp,
  1335. help_data,
  1336. ets,
  1337. cos_data,
  1338. pg_pri_orginal_spread,
  1339. pri_join_mask,
  1340. num_of_dif_pri);
  1341. break;
  1342. default:
  1343. BNX2X_ERR("Wrong pg_help_data.num_of_pg\n");
  1344. bnx2x_dcbx_ets_disabled_entry_data(bp,
  1345. cos_data, pri_join_mask);
  1346. }
  1347. }
  1348. static int bnx2x_dcbx_spread_strict_pri(struct bnx2x *bp,
  1349. struct cos_help_data *cos_data,
  1350. u8 entry,
  1351. u8 num_spread_of_entries,
  1352. u8 strict_app_pris)
  1353. {
  1354. u8 strict_pri = BNX2X_DCBX_STRICT_COS_HIGHEST;
  1355. u8 num_of_app_pri = MAX_PFC_PRIORITIES;
  1356. u8 app_pri_bit = 0;
  1357. while (num_spread_of_entries && num_of_app_pri > 0) {
  1358. app_pri_bit = 1 << (num_of_app_pri - 1);
  1359. if (app_pri_bit & strict_app_pris) {
  1360. struct cos_entry_help_data *data = &cos_data->
  1361. data[entry];
  1362. num_spread_of_entries--;
  1363. if (num_spread_of_entries == 0) {
  1364. /* last entry needed put all the entries left */
  1365. data->cos_bw = DCBX_INVALID_COS_BW;
  1366. data->strict = strict_pri;
  1367. data->pri_join_mask = strict_app_pris;
  1368. data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
  1369. data->pri_join_mask);
  1370. } else {
  1371. strict_app_pris &= ~app_pri_bit;
  1372. data->cos_bw = DCBX_INVALID_COS_BW;
  1373. data->strict = strict_pri;
  1374. data->pri_join_mask = app_pri_bit;
  1375. data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
  1376. data->pri_join_mask);
  1377. }
  1378. strict_pri =
  1379. BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(strict_pri);
  1380. entry++;
  1381. }
  1382. num_of_app_pri--;
  1383. }
  1384. if (num_spread_of_entries) {
  1385. BNX2X_ERR("Didn't succeed to spread strict priorities\n");
  1386. return -EINVAL;
  1387. }
  1388. return 0;
  1389. }
  1390. static u8 bnx2x_dcbx_cee_fill_strict_pri(struct bnx2x *bp,
  1391. struct cos_help_data *cos_data,
  1392. u8 entry,
  1393. u8 num_spread_of_entries,
  1394. u8 strict_app_pris)
  1395. {
  1396. if (bnx2x_dcbx_spread_strict_pri(bp, cos_data, entry,
  1397. num_spread_of_entries,
  1398. strict_app_pris)) {
  1399. struct cos_entry_help_data *data = &cos_data->
  1400. data[entry];
  1401. /* Fill BW entry */
  1402. data->cos_bw = DCBX_INVALID_COS_BW;
  1403. data->strict = BNX2X_DCBX_STRICT_COS_HIGHEST;
  1404. data->pri_join_mask = strict_app_pris;
  1405. data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
  1406. data->pri_join_mask);
  1407. return 1;
  1408. }
  1409. return num_spread_of_entries;
  1410. }
  1411. static void bnx2x_dcbx_cee_fill_cos_params(struct bnx2x *bp,
  1412. struct pg_help_data *help_data,
  1413. struct dcbx_ets_feature *ets,
  1414. struct cos_help_data *cos_data,
  1415. u32 pri_join_mask)
  1416. {
  1417. u8 need_num_of_entries = 0;
  1418. u8 i = 0;
  1419. u8 entry = 0;
  1420. /*
  1421. * if the number of requested PG-s in CEE is greater than 3
  1422. * then the results are not determined since this is a violation
  1423. * of the standard.
  1424. */
  1425. if (help_data->num_of_pg > DCBX_COS_MAX_NUM_E3B0) {
  1426. if (bnx2x_dcbx_join_pgs(bp, ets, help_data,
  1427. DCBX_COS_MAX_NUM_E3B0)) {
  1428. BNX2X_ERR("Unable to reduce the number of PGs - we will disables ETS\n");
  1429. bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data,
  1430. pri_join_mask);
  1431. return;
  1432. }
  1433. }
  1434. for (i = 0 ; i < help_data->num_of_pg; i++) {
  1435. struct pg_entry_help_data *pg = &help_data->data[i];
  1436. if (pg->pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
  1437. struct cos_entry_help_data *data = &cos_data->
  1438. data[entry];
  1439. /* Fill BW entry */
  1440. data->cos_bw = DCBX_PG_BW_GET(ets->pg_bw_tbl, pg->pg);
  1441. data->strict = BNX2X_DCBX_STRICT_INVALID;
  1442. data->pri_join_mask = pg->pg_priority;
  1443. data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
  1444. data->pri_join_mask);
  1445. entry++;
  1446. } else {
  1447. need_num_of_entries = min_t(u8,
  1448. (u8)pg->num_of_dif_pri,
  1449. (u8)DCBX_COS_MAX_NUM_E3B0 -
  1450. help_data->num_of_pg + 1);
  1451. /*
  1452. * If there are still VOQ-s which have no associated PG,
  1453. * then associate these VOQ-s to PG15. These PG-s will
  1454. * be used for SP between priorities on PG15.
  1455. */
  1456. entry += bnx2x_dcbx_cee_fill_strict_pri(bp, cos_data,
  1457. entry, need_num_of_entries, pg->pg_priority);
  1458. }
  1459. }
  1460. /* the entry will represent the number of COSes used */
  1461. cos_data->num_of_cos = entry;
  1462. }
  1463. static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp,
  1464. struct pg_help_data *help_data,
  1465. struct dcbx_ets_feature *ets,
  1466. u32 *pg_pri_orginal_spread)
  1467. {
  1468. struct cos_help_data cos_data;
  1469. u8 i = 0;
  1470. u32 pri_join_mask = 0;
  1471. u8 num_of_dif_pri = 0;
  1472. memset(&cos_data, 0, sizeof(cos_data));
  1473. /* Validate the pg value */
  1474. for (i = 0; i < help_data->num_of_pg ; i++) {
  1475. if (DCBX_STRICT_PRIORITY != help_data->data[i].pg &&
  1476. DCBX_MAX_NUM_PG_BW_ENTRIES <= help_data->data[i].pg)
  1477. BNX2X_ERR("Invalid pg[%d] data %x\n", i,
  1478. help_data->data[i].pg);
  1479. pri_join_mask |= help_data->data[i].pg_priority;
  1480. num_of_dif_pri += help_data->data[i].num_of_dif_pri;
  1481. }
  1482. /* defaults */
  1483. cos_data.num_of_cos = 1;
  1484. for (i = 0; i < ARRAY_SIZE(cos_data.data); i++) {
  1485. cos_data.data[i].pri_join_mask = 0;
  1486. cos_data.data[i].pausable = false;
  1487. cos_data.data[i].strict = BNX2X_DCBX_STRICT_INVALID;
  1488. cos_data.data[i].cos_bw = DCBX_INVALID_COS_BW;
  1489. }
  1490. if (CHIP_IS_E3B0(bp))
  1491. bnx2x_dcbx_cee_fill_cos_params(bp, help_data, ets,
  1492. &cos_data, pri_join_mask);
  1493. else /* E2 + E3A0 */
  1494. bnx2x_dcbx_2cos_limit_cee_fill_cos_params(bp,
  1495. help_data, ets,
  1496. &cos_data,
  1497. pg_pri_orginal_spread,
  1498. pri_join_mask,
  1499. num_of_dif_pri);
  1500. for (i = 0; i < cos_data.num_of_cos ; i++) {
  1501. struct bnx2x_dcbx_cos_params *p =
  1502. &bp->dcbx_port_params.ets.cos_params[i];
  1503. p->strict = cos_data.data[i].strict;
  1504. p->bw_tbl = cos_data.data[i].cos_bw;
  1505. p->pri_bitmask = cos_data.data[i].pri_join_mask;
  1506. p->pauseable = cos_data.data[i].pausable;
  1507. /* sanity */
  1508. if (p->bw_tbl != DCBX_INVALID_COS_BW ||
  1509. p->strict != BNX2X_DCBX_STRICT_INVALID) {
  1510. if (p->pri_bitmask == 0)
  1511. BNX2X_ERR("Invalid pri_bitmask for %d\n", i);
  1512. if (CHIP_IS_E2(bp) || CHIP_IS_E3A0(bp)) {
  1513. if (p->pauseable &&
  1514. DCBX_PFC_PRI_GET_NON_PAUSE(bp,
  1515. p->pri_bitmask) != 0)
  1516. BNX2X_ERR("Inconsistent config for pausable COS %d\n",
  1517. i);
  1518. if (!p->pauseable &&
  1519. DCBX_PFC_PRI_GET_PAUSE(bp,
  1520. p->pri_bitmask) != 0)
  1521. BNX2X_ERR("Inconsistent config for nonpausable COS %d\n",
  1522. i);
  1523. }
  1524. }
  1525. if (p->pauseable)
  1526. DP(BNX2X_MSG_DCB, "COS %d PAUSABLE prijoinmask 0x%x\n",
  1527. i, cos_data.data[i].pri_join_mask);
  1528. else
  1529. DP(BNX2X_MSG_DCB,
  1530. "COS %d NONPAUSABLE prijoinmask 0x%x\n",
  1531. i, cos_data.data[i].pri_join_mask);
  1532. }
  1533. bp->dcbx_port_params.ets.num_of_cos = cos_data.num_of_cos ;
  1534. }
  1535. static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
  1536. u32 *set_configuration_ets_pg,
  1537. u32 *pri_pg_tbl)
  1538. {
  1539. int i;
  1540. for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
  1541. set_configuration_ets_pg[i] = DCBX_PRI_PG_GET(pri_pg_tbl, i);
  1542. DP(BNX2X_MSG_DCB, "set_configuration_ets_pg[%d] = 0x%x\n",
  1543. i, set_configuration_ets_pg[i]);
  1544. }
  1545. }
  1546. static void bnx2x_dcbx_fw_struct(struct bnx2x *bp,
  1547. struct bnx2x_func_tx_start_params *pfc_fw_cfg)
  1548. {
  1549. u16 pri_bit = 0;
  1550. u8 cos = 0, pri = 0;
  1551. struct priority_cos *tt2cos;
  1552. u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
  1553. memset(pfc_fw_cfg, 0, sizeof(*pfc_fw_cfg));
  1554. /* to disable DCB - the structure must be zeroed */
  1555. if (bp->dcbx_error & DCBX_REMOTE_MIB_ERROR)
  1556. return;
  1557. /*shortcut*/
  1558. tt2cos = pfc_fw_cfg->traffic_type_to_priority_cos;
  1559. /* Fw version should be incremented each update */
  1560. pfc_fw_cfg->dcb_version = ++bp->dcb_version;
  1561. pfc_fw_cfg->dcb_enabled = 1;
  1562. /* Fill priority parameters */
  1563. for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
  1564. tt2cos[pri].priority = ttp[pri];
  1565. pri_bit = 1 << tt2cos[pri].priority;
  1566. /* Fill COS parameters based on COS calculated to
  1567. * make it more general for future use */
  1568. for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++)
  1569. if (bp->dcbx_port_params.ets.cos_params[cos].
  1570. pri_bitmask & pri_bit)
  1571. tt2cos[pri].cos = cos;
  1572. }
  1573. /* we never want the FW to add a 0 vlan tag */
  1574. pfc_fw_cfg->dont_add_pri_0_en = 1;
  1575. bnx2x_dcbx_print_cos_params(bp, pfc_fw_cfg);
  1576. }
  1577. void bnx2x_dcbx_pmf_update(struct bnx2x *bp)
  1578. {
  1579. /* if we need to syncronize DCBX result from prev PMF
  1580. * read it from shmem and update bp and netdev accordingly
  1581. */
  1582. if (SHMEM2_HAS(bp, drv_flags) &&
  1583. GET_FLAGS(SHMEM2_RD(bp, drv_flags), 1 << DRV_FLAGS_DCB_CONFIGURED)) {
  1584. /* Read neg results if dcbx is in the FW */
  1585. if (bnx2x_dcbx_read_shmem_neg_results(bp))
  1586. return;
  1587. bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
  1588. bp->dcbx_error);
  1589. bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
  1590. bp->dcbx_error);
  1591. #ifdef BCM_DCBNL
  1592. /*
  1593. * Add new app tlvs to dcbnl
  1594. */
  1595. bnx2x_dcbnl_update_applist(bp, false);
  1596. /*
  1597. * Send a notification for the new negotiated parameters
  1598. */
  1599. dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0);
  1600. #endif
  1601. /*
  1602. * reconfigure the netdevice with the results of the new
  1603. * dcbx negotiation.
  1604. */
  1605. bnx2x_dcbx_update_tc_mapping(bp);
  1606. }
  1607. }
  1608. /* DCB netlink */
  1609. #ifdef BCM_DCBNL
  1610. #define BNX2X_DCBX_CAPS (DCB_CAP_DCBX_LLD_MANAGED | \
  1611. DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_STATIC)
  1612. static inline bool bnx2x_dcbnl_set_valid(struct bnx2x *bp)
  1613. {
  1614. /* validate dcbnl call that may change HW state:
  1615. * DCB is on and DCBX mode was SUCCESSFULLY set by the user.
  1616. */
  1617. return bp->dcb_state && bp->dcbx_mode_uset;
  1618. }
  1619. static u8 bnx2x_dcbnl_get_state(struct net_device *netdev)
  1620. {
  1621. struct bnx2x *bp = netdev_priv(netdev);
  1622. DP(BNX2X_MSG_DCB, "state = %d\n", bp->dcb_state);
  1623. return bp->dcb_state;
  1624. }
  1625. static u8 bnx2x_dcbnl_set_state(struct net_device *netdev, u8 state)
  1626. {
  1627. struct bnx2x *bp = netdev_priv(netdev);
  1628. DP(BNX2X_MSG_DCB, "state = %s\n", state ? "on" : "off");
  1629. bnx2x_dcbx_set_state(bp, (state ? true : false), bp->dcbx_enabled);
  1630. return 0;
  1631. }
  1632. static void bnx2x_dcbnl_get_perm_hw_addr(struct net_device *netdev,
  1633. u8 *perm_addr)
  1634. {
  1635. struct bnx2x *bp = netdev_priv(netdev);
  1636. DP(BNX2X_MSG_DCB, "GET-PERM-ADDR\n");
  1637. /* first the HW mac address */
  1638. memcpy(perm_addr, netdev->dev_addr, netdev->addr_len);
  1639. #ifdef BCM_CNIC
  1640. /* second SAN address */
  1641. memcpy(perm_addr+netdev->addr_len, bp->fip_mac, netdev->addr_len);
  1642. #endif
  1643. }
  1644. static void bnx2x_dcbnl_set_pg_tccfg_tx(struct net_device *netdev, int prio,
  1645. u8 prio_type, u8 pgid, u8 bw_pct,
  1646. u8 up_map)
  1647. {
  1648. struct bnx2x *bp = netdev_priv(netdev);
  1649. DP(BNX2X_MSG_DCB, "prio[%d] = %d\n", prio, pgid);
  1650. if (!bnx2x_dcbnl_set_valid(bp) || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
  1651. return;
  1652. /**
  1653. * bw_pct ingnored - band-width percentage devision between user
  1654. * priorities within the same group is not
  1655. * standard and hence not supported
  1656. *
  1657. * prio_type igonred - priority levels within the same group are not
  1658. * standard and hence are not supported. According
  1659. * to the standard pgid 15 is dedicated to strict
  1660. * prioirty traffic (on the port level).
  1661. *
  1662. * up_map ignored
  1663. */
  1664. bp->dcbx_config_params.admin_configuration_ets_pg[prio] = pgid;
  1665. bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
  1666. }
  1667. static void bnx2x_dcbnl_set_pg_bwgcfg_tx(struct net_device *netdev,
  1668. int pgid, u8 bw_pct)
  1669. {
  1670. struct bnx2x *bp = netdev_priv(netdev);
  1671. DP(BNX2X_MSG_DCB, "pgid[%d] = %d\n", pgid, bw_pct);
  1672. if (!bnx2x_dcbnl_set_valid(bp) || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
  1673. return;
  1674. bp->dcbx_config_params.admin_configuration_bw_precentage[pgid] = bw_pct;
  1675. bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
  1676. }
  1677. static void bnx2x_dcbnl_set_pg_tccfg_rx(struct net_device *netdev, int prio,
  1678. u8 prio_type, u8 pgid, u8 bw_pct,
  1679. u8 up_map)
  1680. {
  1681. struct bnx2x *bp = netdev_priv(netdev);
  1682. DP(BNX2X_MSG_DCB, "Nothing to set; No RX support\n");
  1683. }
  1684. static void bnx2x_dcbnl_set_pg_bwgcfg_rx(struct net_device *netdev,
  1685. int pgid, u8 bw_pct)
  1686. {
  1687. struct bnx2x *bp = netdev_priv(netdev);
  1688. DP(BNX2X_MSG_DCB, "Nothing to set; No RX support\n");
  1689. }
  1690. static void bnx2x_dcbnl_get_pg_tccfg_tx(struct net_device *netdev, int prio,
  1691. u8 *prio_type, u8 *pgid, u8 *bw_pct,
  1692. u8 *up_map)
  1693. {
  1694. struct bnx2x *bp = netdev_priv(netdev);
  1695. DP(BNX2X_MSG_DCB, "prio = %d\n", prio);
  1696. /**
  1697. * bw_pct ingnored - band-width percentage devision between user
  1698. * priorities within the same group is not
  1699. * standard and hence not supported
  1700. *
  1701. * prio_type igonred - priority levels within the same group are not
  1702. * standard and hence are not supported. According
  1703. * to the standard pgid 15 is dedicated to strict
  1704. * prioirty traffic (on the port level).
  1705. *
  1706. * up_map ignored
  1707. */
  1708. *up_map = *bw_pct = *prio_type = *pgid = 0;
  1709. if (!bp->dcb_state || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
  1710. return;
  1711. *pgid = DCBX_PRI_PG_GET(bp->dcbx_local_feat.ets.pri_pg_tbl, prio);
  1712. }
  1713. static void bnx2x_dcbnl_get_pg_bwgcfg_tx(struct net_device *netdev,
  1714. int pgid, u8 *bw_pct)
  1715. {
  1716. struct bnx2x *bp = netdev_priv(netdev);
  1717. DP(BNX2X_MSG_DCB, "pgid = %d\n", pgid);
  1718. *bw_pct = 0;
  1719. if (!bp->dcb_state || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
  1720. return;
  1721. *bw_pct = DCBX_PG_BW_GET(bp->dcbx_local_feat.ets.pg_bw_tbl, pgid);
  1722. }
  1723. static void bnx2x_dcbnl_get_pg_tccfg_rx(struct net_device *netdev, int prio,
  1724. u8 *prio_type, u8 *pgid, u8 *bw_pct,
  1725. u8 *up_map)
  1726. {
  1727. struct bnx2x *bp = netdev_priv(netdev);
  1728. DP(BNX2X_MSG_DCB, "Nothing to get; No RX support\n");
  1729. *prio_type = *pgid = *bw_pct = *up_map = 0;
  1730. }
  1731. static void bnx2x_dcbnl_get_pg_bwgcfg_rx(struct net_device *netdev,
  1732. int pgid, u8 *bw_pct)
  1733. {
  1734. struct bnx2x *bp = netdev_priv(netdev);
  1735. DP(BNX2X_MSG_DCB, "Nothing to get; No RX support\n");
  1736. *bw_pct = 0;
  1737. }
  1738. static void bnx2x_dcbnl_set_pfc_cfg(struct net_device *netdev, int prio,
  1739. u8 setting)
  1740. {
  1741. struct bnx2x *bp = netdev_priv(netdev);
  1742. DP(BNX2X_MSG_DCB, "prio[%d] = %d\n", prio, setting);
  1743. if (!bnx2x_dcbnl_set_valid(bp) || prio >= MAX_PFC_PRIORITIES)
  1744. return;
  1745. bp->dcbx_config_params.admin_pfc_bitmap |= ((setting ? 1 : 0) << prio);
  1746. if (setting)
  1747. bp->dcbx_config_params.admin_pfc_tx_enable = 1;
  1748. }
  1749. static void bnx2x_dcbnl_get_pfc_cfg(struct net_device *netdev, int prio,
  1750. u8 *setting)
  1751. {
  1752. struct bnx2x *bp = netdev_priv(netdev);
  1753. DP(BNX2X_MSG_DCB, "prio = %d\n", prio);
  1754. *setting = 0;
  1755. if (!bp->dcb_state || prio >= MAX_PFC_PRIORITIES)
  1756. return;
  1757. *setting = (bp->dcbx_local_feat.pfc.pri_en_bitmap >> prio) & 0x1;
  1758. }
  1759. static u8 bnx2x_dcbnl_set_all(struct net_device *netdev)
  1760. {
  1761. struct bnx2x *bp = netdev_priv(netdev);
  1762. int rc = 0;
  1763. DP(BNX2X_MSG_DCB, "SET-ALL\n");
  1764. if (!bnx2x_dcbnl_set_valid(bp))
  1765. return 1;
  1766. if (bp->recovery_state != BNX2X_RECOVERY_DONE) {
  1767. netdev_err(bp->dev,
  1768. "Handling parity error recovery. Try again later\n");
  1769. return 1;
  1770. }
  1771. if (netif_running(bp->dev)) {
  1772. bnx2x_nic_unload(bp, UNLOAD_NORMAL);
  1773. rc = bnx2x_nic_load(bp, LOAD_NORMAL);
  1774. }
  1775. DP(BNX2X_MSG_DCB, "set_dcbx_params done (%d)\n", rc);
  1776. if (rc)
  1777. return 1;
  1778. return 0;
  1779. }
  1780. static u8 bnx2x_dcbnl_get_cap(struct net_device *netdev, int capid, u8 *cap)
  1781. {
  1782. struct bnx2x *bp = netdev_priv(netdev);
  1783. u8 rval = 0;
  1784. if (bp->dcb_state) {
  1785. switch (capid) {
  1786. case DCB_CAP_ATTR_PG:
  1787. *cap = true;
  1788. break;
  1789. case DCB_CAP_ATTR_PFC:
  1790. *cap = true;
  1791. break;
  1792. case DCB_CAP_ATTR_UP2TC:
  1793. *cap = false;
  1794. break;
  1795. case DCB_CAP_ATTR_PG_TCS:
  1796. *cap = 0x80; /* 8 priorities for PGs */
  1797. break;
  1798. case DCB_CAP_ATTR_PFC_TCS:
  1799. *cap = 0x80; /* 8 priorities for PFC */
  1800. break;
  1801. case DCB_CAP_ATTR_GSP:
  1802. *cap = true;
  1803. break;
  1804. case DCB_CAP_ATTR_BCN:
  1805. *cap = false;
  1806. break;
  1807. case DCB_CAP_ATTR_DCBX:
  1808. *cap = BNX2X_DCBX_CAPS;
  1809. break;
  1810. default:
  1811. BNX2X_ERR("Non valid capability ID\n");
  1812. rval = -EINVAL;
  1813. break;
  1814. }
  1815. } else {
  1816. DP(BNX2X_MSG_DCB, "DCB disabled\n");
  1817. rval = -EINVAL;
  1818. }
  1819. DP(BNX2X_MSG_DCB, "capid %d:%x\n", capid, *cap);
  1820. return rval;
  1821. }
  1822. static int bnx2x_dcbnl_get_numtcs(struct net_device *netdev, int tcid, u8 *num)
  1823. {
  1824. struct bnx2x *bp = netdev_priv(netdev);
  1825. u8 rval = 0;
  1826. DP(BNX2X_MSG_DCB, "tcid %d\n", tcid);
  1827. if (bp->dcb_state) {
  1828. switch (tcid) {
  1829. case DCB_NUMTCS_ATTR_PG:
  1830. *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 :
  1831. DCBX_COS_MAX_NUM_E2;
  1832. break;
  1833. case DCB_NUMTCS_ATTR_PFC:
  1834. *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 :
  1835. DCBX_COS_MAX_NUM_E2;
  1836. break;
  1837. default:
  1838. BNX2X_ERR("Non valid TC-ID\n");
  1839. rval = -EINVAL;
  1840. break;
  1841. }
  1842. } else {
  1843. DP(BNX2X_MSG_DCB, "DCB disabled\n");
  1844. rval = -EINVAL;
  1845. }
  1846. return rval;
  1847. }
  1848. static int bnx2x_dcbnl_set_numtcs(struct net_device *netdev, int tcid, u8 num)
  1849. {
  1850. struct bnx2x *bp = netdev_priv(netdev);
  1851. DP(BNX2X_MSG_DCB, "num tcs = %d; Not supported\n", num);
  1852. return -EINVAL;
  1853. }
  1854. static u8 bnx2x_dcbnl_get_pfc_state(struct net_device *netdev)
  1855. {
  1856. struct bnx2x *bp = netdev_priv(netdev);
  1857. DP(BNX2X_MSG_DCB, "state = %d\n", bp->dcbx_local_feat.pfc.enabled);
  1858. if (!bp->dcb_state)
  1859. return 0;
  1860. return bp->dcbx_local_feat.pfc.enabled;
  1861. }
  1862. static void bnx2x_dcbnl_set_pfc_state(struct net_device *netdev, u8 state)
  1863. {
  1864. struct bnx2x *bp = netdev_priv(netdev);
  1865. DP(BNX2X_MSG_DCB, "state = %s\n", state ? "on" : "off");
  1866. if (!bnx2x_dcbnl_set_valid(bp))
  1867. return;
  1868. bp->dcbx_config_params.admin_pfc_tx_enable =
  1869. bp->dcbx_config_params.admin_pfc_enable = (state ? 1 : 0);
  1870. }
  1871. static void bnx2x_admin_app_set_ent(
  1872. struct bnx2x_admin_priority_app_table *app_ent,
  1873. u8 idtype, u16 idval, u8 up)
  1874. {
  1875. app_ent->valid = 1;
  1876. switch (idtype) {
  1877. case DCB_APP_IDTYPE_ETHTYPE:
  1878. app_ent->traffic_type = TRAFFIC_TYPE_ETH;
  1879. break;
  1880. case DCB_APP_IDTYPE_PORTNUM:
  1881. app_ent->traffic_type = TRAFFIC_TYPE_PORT;
  1882. break;
  1883. default:
  1884. break; /* never gets here */
  1885. }
  1886. app_ent->app_id = idval;
  1887. app_ent->priority = up;
  1888. }
  1889. static bool bnx2x_admin_app_is_equal(
  1890. struct bnx2x_admin_priority_app_table *app_ent,
  1891. u8 idtype, u16 idval)
  1892. {
  1893. if (!app_ent->valid)
  1894. return false;
  1895. switch (idtype) {
  1896. case DCB_APP_IDTYPE_ETHTYPE:
  1897. if (app_ent->traffic_type != TRAFFIC_TYPE_ETH)
  1898. return false;
  1899. break;
  1900. case DCB_APP_IDTYPE_PORTNUM:
  1901. if (app_ent->traffic_type != TRAFFIC_TYPE_PORT)
  1902. return false;
  1903. break;
  1904. default:
  1905. return false;
  1906. }
  1907. if (app_ent->app_id != idval)
  1908. return false;
  1909. return true;
  1910. }
  1911. static int bnx2x_set_admin_app_up(struct bnx2x *bp, u8 idtype, u16 idval, u8 up)
  1912. {
  1913. int i, ff;
  1914. /* iterate over the app entries looking for idtype and idval */
  1915. for (i = 0, ff = -1; i < DCBX_CONFIG_MAX_APP_PROTOCOL; i++) {
  1916. struct bnx2x_admin_priority_app_table *app_ent =
  1917. &bp->dcbx_config_params.admin_priority_app_table[i];
  1918. if (bnx2x_admin_app_is_equal(app_ent, idtype, idval))
  1919. break;
  1920. if (ff < 0 && !app_ent->valid)
  1921. ff = i;
  1922. }
  1923. if (i < DCBX_CONFIG_MAX_APP_PROTOCOL)
  1924. /* if found overwrite up */
  1925. bp->dcbx_config_params.
  1926. admin_priority_app_table[i].priority = up;
  1927. else if (ff >= 0)
  1928. /* not found use first-free */
  1929. bnx2x_admin_app_set_ent(
  1930. &bp->dcbx_config_params.admin_priority_app_table[ff],
  1931. idtype, idval, up);
  1932. else {
  1933. /* app table is full */
  1934. BNX2X_ERR("Application table is too large\n");
  1935. return -EBUSY;
  1936. }
  1937. /* up configured, if not 0 make sure feature is enabled */
  1938. if (up)
  1939. bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
  1940. return 0;
  1941. }
  1942. static u8 bnx2x_dcbnl_set_app_up(struct net_device *netdev, u8 idtype,
  1943. u16 idval, u8 up)
  1944. {
  1945. struct bnx2x *bp = netdev_priv(netdev);
  1946. DP(BNX2X_MSG_DCB, "app_type %d, app_id %x, prio bitmap %d\n",
  1947. idtype, idval, up);
  1948. if (!bnx2x_dcbnl_set_valid(bp)) {
  1949. DP(BNX2X_MSG_DCB, "dcbnl call not valid\n");
  1950. return -EINVAL;
  1951. }
  1952. /* verify idtype */
  1953. switch (idtype) {
  1954. case DCB_APP_IDTYPE_ETHTYPE:
  1955. case DCB_APP_IDTYPE_PORTNUM:
  1956. break;
  1957. default:
  1958. DP(BNX2X_MSG_DCB, "Wrong ID type\n");
  1959. return -EINVAL;
  1960. }
  1961. return bnx2x_set_admin_app_up(bp, idtype, idval, up);
  1962. }
  1963. static u8 bnx2x_dcbnl_get_dcbx(struct net_device *netdev)
  1964. {
  1965. struct bnx2x *bp = netdev_priv(netdev);
  1966. u8 state;
  1967. state = DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE;
  1968. if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF)
  1969. state |= DCB_CAP_DCBX_STATIC;
  1970. return state;
  1971. }
  1972. static u8 bnx2x_dcbnl_set_dcbx(struct net_device *netdev, u8 state)
  1973. {
  1974. struct bnx2x *bp = netdev_priv(netdev);
  1975. DP(BNX2X_MSG_DCB, "state = %02x\n", state);
  1976. /* set dcbx mode */
  1977. if ((state & BNX2X_DCBX_CAPS) != state) {
  1978. BNX2X_ERR("Requested DCBX mode %x is beyond advertised capabilities\n",
  1979. state);
  1980. return 1;
  1981. }
  1982. if (bp->dcb_state != BNX2X_DCB_STATE_ON) {
  1983. BNX2X_ERR("DCB turned off, DCBX configuration is invalid\n");
  1984. return 1;
  1985. }
  1986. if (state & DCB_CAP_DCBX_STATIC)
  1987. bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_OFF;
  1988. else
  1989. bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_ON;
  1990. bp->dcbx_mode_uset = true;
  1991. return 0;
  1992. }
  1993. static u8 bnx2x_dcbnl_get_featcfg(struct net_device *netdev, int featid,
  1994. u8 *flags)
  1995. {
  1996. struct bnx2x *bp = netdev_priv(netdev);
  1997. u8 rval = 0;
  1998. DP(BNX2X_MSG_DCB, "featid %d\n", featid);
  1999. if (bp->dcb_state) {
  2000. *flags = 0;
  2001. switch (featid) {
  2002. case DCB_FEATCFG_ATTR_PG:
  2003. if (bp->dcbx_local_feat.ets.enabled)
  2004. *flags |= DCB_FEATCFG_ENABLE;
  2005. if (bp->dcbx_error & DCBX_LOCAL_ETS_ERROR)
  2006. *flags |= DCB_FEATCFG_ERROR;
  2007. break;
  2008. case DCB_FEATCFG_ATTR_PFC:
  2009. if (bp->dcbx_local_feat.pfc.enabled)
  2010. *flags |= DCB_FEATCFG_ENABLE;
  2011. if (bp->dcbx_error & (DCBX_LOCAL_PFC_ERROR |
  2012. DCBX_LOCAL_PFC_MISMATCH))
  2013. *flags |= DCB_FEATCFG_ERROR;
  2014. break;
  2015. case DCB_FEATCFG_ATTR_APP:
  2016. if (bp->dcbx_local_feat.app.enabled)
  2017. *flags |= DCB_FEATCFG_ENABLE;
  2018. if (bp->dcbx_error & (DCBX_LOCAL_APP_ERROR |
  2019. DCBX_LOCAL_APP_MISMATCH))
  2020. *flags |= DCB_FEATCFG_ERROR;
  2021. break;
  2022. default:
  2023. BNX2X_ERR("Non valid featrue-ID\n");
  2024. rval = -EINVAL;
  2025. break;
  2026. }
  2027. } else {
  2028. DP(BNX2X_MSG_DCB, "DCB disabled\n");
  2029. rval = -EINVAL;
  2030. }
  2031. return rval;
  2032. }
  2033. static u8 bnx2x_dcbnl_set_featcfg(struct net_device *netdev, int featid,
  2034. u8 flags)
  2035. {
  2036. struct bnx2x *bp = netdev_priv(netdev);
  2037. u8 rval = 0;
  2038. DP(BNX2X_MSG_DCB, "featid = %d flags = %02x\n", featid, flags);
  2039. /* ignore the 'advertise' flag */
  2040. if (bnx2x_dcbnl_set_valid(bp)) {
  2041. switch (featid) {
  2042. case DCB_FEATCFG_ATTR_PG:
  2043. bp->dcbx_config_params.admin_ets_enable =
  2044. flags & DCB_FEATCFG_ENABLE ? 1 : 0;
  2045. bp->dcbx_config_params.admin_ets_willing =
  2046. flags & DCB_FEATCFG_WILLING ? 1 : 0;
  2047. break;
  2048. case DCB_FEATCFG_ATTR_PFC:
  2049. bp->dcbx_config_params.admin_pfc_enable =
  2050. flags & DCB_FEATCFG_ENABLE ? 1 : 0;
  2051. bp->dcbx_config_params.admin_pfc_willing =
  2052. flags & DCB_FEATCFG_WILLING ? 1 : 0;
  2053. break;
  2054. case DCB_FEATCFG_ATTR_APP:
  2055. /* ignore enable, always enabled */
  2056. bp->dcbx_config_params.admin_app_priority_willing =
  2057. flags & DCB_FEATCFG_WILLING ? 1 : 0;
  2058. break;
  2059. default:
  2060. BNX2X_ERR("Non valid featrue-ID\n");
  2061. rval = -EINVAL;
  2062. break;
  2063. }
  2064. } else {
  2065. DP(BNX2X_MSG_DCB, "dcbnl call not valid\n");
  2066. rval = -EINVAL;
  2067. }
  2068. return rval;
  2069. }
  2070. static int bnx2x_peer_appinfo(struct net_device *netdev,
  2071. struct dcb_peer_app_info *info, u16* app_count)
  2072. {
  2073. int i;
  2074. struct bnx2x *bp = netdev_priv(netdev);
  2075. DP(BNX2X_MSG_DCB, "APP-INFO\n");
  2076. info->willing = (bp->dcbx_remote_flags & DCBX_APP_REM_WILLING) ?: 0;
  2077. info->error = (bp->dcbx_remote_flags & DCBX_APP_RX_ERROR) ?: 0;
  2078. *app_count = 0;
  2079. for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++)
  2080. if (bp->dcbx_remote_feat.app.app_pri_tbl[i].appBitfield &
  2081. DCBX_APP_ENTRY_VALID)
  2082. (*app_count)++;
  2083. return 0;
  2084. }
  2085. static int bnx2x_peer_apptable(struct net_device *netdev,
  2086. struct dcb_app *table)
  2087. {
  2088. int i, j;
  2089. struct bnx2x *bp = netdev_priv(netdev);
  2090. DP(BNX2X_MSG_DCB, "APP-TABLE\n");
  2091. for (i = 0, j = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
  2092. struct dcbx_app_priority_entry *ent =
  2093. &bp->dcbx_remote_feat.app.app_pri_tbl[i];
  2094. if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
  2095. table[j].selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
  2096. table[j].priority = bnx2x_dcbx_dcbnl_app_up(ent);
  2097. table[j++].protocol = ent->app_id;
  2098. }
  2099. }
  2100. return 0;
  2101. }
  2102. static int bnx2x_cee_peer_getpg(struct net_device *netdev, struct cee_pg *pg)
  2103. {
  2104. int i;
  2105. struct bnx2x *bp = netdev_priv(netdev);
  2106. pg->willing = (bp->dcbx_remote_flags & DCBX_ETS_REM_WILLING) ?: 0;
  2107. for (i = 0; i < CEE_DCBX_MAX_PGS; i++) {
  2108. pg->pg_bw[i] =
  2109. DCBX_PG_BW_GET(bp->dcbx_remote_feat.ets.pg_bw_tbl, i);
  2110. pg->prio_pg[i] =
  2111. DCBX_PRI_PG_GET(bp->dcbx_remote_feat.ets.pri_pg_tbl, i);
  2112. }
  2113. return 0;
  2114. }
  2115. static int bnx2x_cee_peer_getpfc(struct net_device *netdev,
  2116. struct cee_pfc *pfc)
  2117. {
  2118. struct bnx2x *bp = netdev_priv(netdev);
  2119. pfc->tcs_supported = bp->dcbx_remote_feat.pfc.pfc_caps;
  2120. pfc->pfc_en = bp->dcbx_remote_feat.pfc.pri_en_bitmap;
  2121. return 0;
  2122. }
  2123. const struct dcbnl_rtnl_ops bnx2x_dcbnl_ops = {
  2124. .getstate = bnx2x_dcbnl_get_state,
  2125. .setstate = bnx2x_dcbnl_set_state,
  2126. .getpermhwaddr = bnx2x_dcbnl_get_perm_hw_addr,
  2127. .setpgtccfgtx = bnx2x_dcbnl_set_pg_tccfg_tx,
  2128. .setpgbwgcfgtx = bnx2x_dcbnl_set_pg_bwgcfg_tx,
  2129. .setpgtccfgrx = bnx2x_dcbnl_set_pg_tccfg_rx,
  2130. .setpgbwgcfgrx = bnx2x_dcbnl_set_pg_bwgcfg_rx,
  2131. .getpgtccfgtx = bnx2x_dcbnl_get_pg_tccfg_tx,
  2132. .getpgbwgcfgtx = bnx2x_dcbnl_get_pg_bwgcfg_tx,
  2133. .getpgtccfgrx = bnx2x_dcbnl_get_pg_tccfg_rx,
  2134. .getpgbwgcfgrx = bnx2x_dcbnl_get_pg_bwgcfg_rx,
  2135. .setpfccfg = bnx2x_dcbnl_set_pfc_cfg,
  2136. .getpfccfg = bnx2x_dcbnl_get_pfc_cfg,
  2137. .setall = bnx2x_dcbnl_set_all,
  2138. .getcap = bnx2x_dcbnl_get_cap,
  2139. .getnumtcs = bnx2x_dcbnl_get_numtcs,
  2140. .setnumtcs = bnx2x_dcbnl_set_numtcs,
  2141. .getpfcstate = bnx2x_dcbnl_get_pfc_state,
  2142. .setpfcstate = bnx2x_dcbnl_set_pfc_state,
  2143. .setapp = bnx2x_dcbnl_set_app_up,
  2144. .getdcbx = bnx2x_dcbnl_get_dcbx,
  2145. .setdcbx = bnx2x_dcbnl_set_dcbx,
  2146. .getfeatcfg = bnx2x_dcbnl_get_featcfg,
  2147. .setfeatcfg = bnx2x_dcbnl_set_featcfg,
  2148. .peer_getappinfo = bnx2x_peer_appinfo,
  2149. .peer_getapptable = bnx2x_peer_apptable,
  2150. .cee_peer_getpg = bnx2x_cee_peer_getpg,
  2151. .cee_peer_getpfc = bnx2x_cee_peer_getpfc,
  2152. };
  2153. #endif /* BCM_DCBNL */