qed_mcp.c 82 KB

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  1. /* QLogic qed NIC Driver
  2. * Copyright (c) 2015-2017 QLogic Corporation
  3. *
  4. * This software is available to you under a choice of one of two
  5. * licenses. You may choose to be licensed under the terms of the GNU
  6. * General Public License (GPL) Version 2, available from the file
  7. * COPYING in the main directory of this source tree, or the
  8. * OpenIB.org BSD license below:
  9. *
  10. * Redistribution and use in source and binary forms, with or
  11. * without modification, are permitted provided that the following
  12. * conditions are met:
  13. *
  14. * - Redistributions of source code must retain the above
  15. * copyright notice, this list of conditions and the following
  16. * disclaimer.
  17. *
  18. * - Redistributions in binary form must reproduce the above
  19. * copyright notice, this list of conditions and the following
  20. * disclaimer in the documentation and /or other materials
  21. * provided with the distribution.
  22. *
  23. * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24. * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25. * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26. * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27. * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28. * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30. * SOFTWARE.
  31. */
  32. #include <linux/types.h>
  33. #include <asm/byteorder.h>
  34. #include <linux/delay.h>
  35. #include <linux/errno.h>
  36. #include <linux/kernel.h>
  37. #include <linux/slab.h>
  38. #include <linux/spinlock.h>
  39. #include <linux/string.h>
  40. #include <linux/etherdevice.h>
  41. #include "qed.h"
  42. #include "qed_dcbx.h"
  43. #include "qed_hsi.h"
  44. #include "qed_hw.h"
  45. #include "qed_mcp.h"
  46. #include "qed_reg_addr.h"
  47. #include "qed_sriov.h"
  48. #define CHIP_MCP_RESP_ITER_US 10
  49. #define QED_DRV_MB_MAX_RETRIES (500 * 1000) /* Account for 5 sec */
  50. #define QED_MCP_RESET_RETRIES (50 * 1000) /* Account for 500 msec */
  51. #define DRV_INNER_WR(_p_hwfn, _p_ptt, _ptr, _offset, _val) \
  52. qed_wr(_p_hwfn, _p_ptt, (_p_hwfn->mcp_info->_ptr + _offset), \
  53. _val)
  54. #define DRV_INNER_RD(_p_hwfn, _p_ptt, _ptr, _offset) \
  55. qed_rd(_p_hwfn, _p_ptt, (_p_hwfn->mcp_info->_ptr + _offset))
  56. #define DRV_MB_WR(_p_hwfn, _p_ptt, _field, _val) \
  57. DRV_INNER_WR(p_hwfn, _p_ptt, drv_mb_addr, \
  58. offsetof(struct public_drv_mb, _field), _val)
  59. #define DRV_MB_RD(_p_hwfn, _p_ptt, _field) \
  60. DRV_INNER_RD(_p_hwfn, _p_ptt, drv_mb_addr, \
  61. offsetof(struct public_drv_mb, _field))
  62. #define PDA_COMP (((FW_MAJOR_VERSION) + (FW_MINOR_VERSION << 8)) << \
  63. DRV_ID_PDA_COMP_VER_SHIFT)
  64. #define MCP_BYTES_PER_MBIT_SHIFT 17
  65. bool qed_mcp_is_init(struct qed_hwfn *p_hwfn)
  66. {
  67. if (!p_hwfn->mcp_info || !p_hwfn->mcp_info->public_base)
  68. return false;
  69. return true;
  70. }
  71. void qed_mcp_cmd_port_init(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
  72. {
  73. u32 addr = SECTION_OFFSIZE_ADDR(p_hwfn->mcp_info->public_base,
  74. PUBLIC_PORT);
  75. u32 mfw_mb_offsize = qed_rd(p_hwfn, p_ptt, addr);
  76. p_hwfn->mcp_info->port_addr = SECTION_ADDR(mfw_mb_offsize,
  77. MFW_PORT(p_hwfn));
  78. DP_VERBOSE(p_hwfn, QED_MSG_SP,
  79. "port_addr = 0x%x, port_id 0x%02x\n",
  80. p_hwfn->mcp_info->port_addr, MFW_PORT(p_hwfn));
  81. }
  82. void qed_mcp_read_mb(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
  83. {
  84. u32 length = MFW_DRV_MSG_MAX_DWORDS(p_hwfn->mcp_info->mfw_mb_length);
  85. u32 tmp, i;
  86. if (!p_hwfn->mcp_info->public_base)
  87. return;
  88. for (i = 0; i < length; i++) {
  89. tmp = qed_rd(p_hwfn, p_ptt,
  90. p_hwfn->mcp_info->mfw_mb_addr +
  91. (i << 2) + sizeof(u32));
  92. /* The MB data is actually BE; Need to force it to cpu */
  93. ((u32 *)p_hwfn->mcp_info->mfw_mb_cur)[i] =
  94. be32_to_cpu((__force __be32)tmp);
  95. }
  96. }
  97. struct qed_mcp_cmd_elem {
  98. struct list_head list;
  99. struct qed_mcp_mb_params *p_mb_params;
  100. u16 expected_seq_num;
  101. bool b_is_completed;
  102. };
  103. /* Must be called while cmd_lock is acquired */
  104. static struct qed_mcp_cmd_elem *
  105. qed_mcp_cmd_add_elem(struct qed_hwfn *p_hwfn,
  106. struct qed_mcp_mb_params *p_mb_params,
  107. u16 expected_seq_num)
  108. {
  109. struct qed_mcp_cmd_elem *p_cmd_elem = NULL;
  110. p_cmd_elem = kzalloc(sizeof(*p_cmd_elem), GFP_ATOMIC);
  111. if (!p_cmd_elem)
  112. goto out;
  113. p_cmd_elem->p_mb_params = p_mb_params;
  114. p_cmd_elem->expected_seq_num = expected_seq_num;
  115. list_add(&p_cmd_elem->list, &p_hwfn->mcp_info->cmd_list);
  116. out:
  117. return p_cmd_elem;
  118. }
  119. /* Must be called while cmd_lock is acquired */
  120. static void qed_mcp_cmd_del_elem(struct qed_hwfn *p_hwfn,
  121. struct qed_mcp_cmd_elem *p_cmd_elem)
  122. {
  123. list_del(&p_cmd_elem->list);
  124. kfree(p_cmd_elem);
  125. }
  126. /* Must be called while cmd_lock is acquired */
  127. static struct qed_mcp_cmd_elem *qed_mcp_cmd_get_elem(struct qed_hwfn *p_hwfn,
  128. u16 seq_num)
  129. {
  130. struct qed_mcp_cmd_elem *p_cmd_elem = NULL;
  131. list_for_each_entry(p_cmd_elem, &p_hwfn->mcp_info->cmd_list, list) {
  132. if (p_cmd_elem->expected_seq_num == seq_num)
  133. return p_cmd_elem;
  134. }
  135. return NULL;
  136. }
  137. int qed_mcp_free(struct qed_hwfn *p_hwfn)
  138. {
  139. if (p_hwfn->mcp_info) {
  140. struct qed_mcp_cmd_elem *p_cmd_elem, *p_tmp;
  141. kfree(p_hwfn->mcp_info->mfw_mb_cur);
  142. kfree(p_hwfn->mcp_info->mfw_mb_shadow);
  143. spin_lock_bh(&p_hwfn->mcp_info->cmd_lock);
  144. list_for_each_entry_safe(p_cmd_elem,
  145. p_tmp,
  146. &p_hwfn->mcp_info->cmd_list, list) {
  147. qed_mcp_cmd_del_elem(p_hwfn, p_cmd_elem);
  148. }
  149. spin_unlock_bh(&p_hwfn->mcp_info->cmd_lock);
  150. }
  151. kfree(p_hwfn->mcp_info);
  152. p_hwfn->mcp_info = NULL;
  153. return 0;
  154. }
  155. static int qed_load_mcp_offsets(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
  156. {
  157. struct qed_mcp_info *p_info = p_hwfn->mcp_info;
  158. u32 drv_mb_offsize, mfw_mb_offsize;
  159. u32 mcp_pf_id = MCP_PF_ID(p_hwfn);
  160. p_info->public_base = qed_rd(p_hwfn, p_ptt, MISC_REG_SHARED_MEM_ADDR);
  161. if (!p_info->public_base)
  162. return 0;
  163. p_info->public_base |= GRCBASE_MCP;
  164. /* Calculate the driver and MFW mailbox address */
  165. drv_mb_offsize = qed_rd(p_hwfn, p_ptt,
  166. SECTION_OFFSIZE_ADDR(p_info->public_base,
  167. PUBLIC_DRV_MB));
  168. p_info->drv_mb_addr = SECTION_ADDR(drv_mb_offsize, mcp_pf_id);
  169. DP_VERBOSE(p_hwfn, QED_MSG_SP,
  170. "drv_mb_offsiz = 0x%x, drv_mb_addr = 0x%x mcp_pf_id = 0x%x\n",
  171. drv_mb_offsize, p_info->drv_mb_addr, mcp_pf_id);
  172. /* Set the MFW MB address */
  173. mfw_mb_offsize = qed_rd(p_hwfn, p_ptt,
  174. SECTION_OFFSIZE_ADDR(p_info->public_base,
  175. PUBLIC_MFW_MB));
  176. p_info->mfw_mb_addr = SECTION_ADDR(mfw_mb_offsize, mcp_pf_id);
  177. p_info->mfw_mb_length = (u16)qed_rd(p_hwfn, p_ptt, p_info->mfw_mb_addr);
  178. /* Get the current driver mailbox sequence before sending
  179. * the first command
  180. */
  181. p_info->drv_mb_seq = DRV_MB_RD(p_hwfn, p_ptt, drv_mb_header) &
  182. DRV_MSG_SEQ_NUMBER_MASK;
  183. /* Get current FW pulse sequence */
  184. p_info->drv_pulse_seq = DRV_MB_RD(p_hwfn, p_ptt, drv_pulse_mb) &
  185. DRV_PULSE_SEQ_MASK;
  186. p_info->mcp_hist = qed_rd(p_hwfn, p_ptt, MISCS_REG_GENERIC_POR_0);
  187. return 0;
  188. }
  189. int qed_mcp_cmd_init(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
  190. {
  191. struct qed_mcp_info *p_info;
  192. u32 size;
  193. /* Allocate mcp_info structure */
  194. p_hwfn->mcp_info = kzalloc(sizeof(*p_hwfn->mcp_info), GFP_KERNEL);
  195. if (!p_hwfn->mcp_info)
  196. goto err;
  197. p_info = p_hwfn->mcp_info;
  198. /* Initialize the MFW spinlock */
  199. spin_lock_init(&p_info->cmd_lock);
  200. spin_lock_init(&p_info->link_lock);
  201. INIT_LIST_HEAD(&p_info->cmd_list);
  202. if (qed_load_mcp_offsets(p_hwfn, p_ptt) != 0) {
  203. DP_NOTICE(p_hwfn, "MCP is not initialized\n");
  204. /* Do not free mcp_info here, since public_base indicate that
  205. * the MCP is not initialized
  206. */
  207. return 0;
  208. }
  209. size = MFW_DRV_MSG_MAX_DWORDS(p_info->mfw_mb_length) * sizeof(u32);
  210. p_info->mfw_mb_cur = kzalloc(size, GFP_KERNEL);
  211. p_info->mfw_mb_shadow = kzalloc(size, GFP_KERNEL);
  212. if (!p_info->mfw_mb_cur || !p_info->mfw_mb_shadow)
  213. goto err;
  214. return 0;
  215. err:
  216. qed_mcp_free(p_hwfn);
  217. return -ENOMEM;
  218. }
  219. static void qed_mcp_reread_offsets(struct qed_hwfn *p_hwfn,
  220. struct qed_ptt *p_ptt)
  221. {
  222. u32 generic_por_0 = qed_rd(p_hwfn, p_ptt, MISCS_REG_GENERIC_POR_0);
  223. /* Use MCP history register to check if MCP reset occurred between init
  224. * time and now.
  225. */
  226. if (p_hwfn->mcp_info->mcp_hist != generic_por_0) {
  227. DP_VERBOSE(p_hwfn,
  228. QED_MSG_SP,
  229. "Rereading MCP offsets [mcp_hist 0x%08x, generic_por_0 0x%08x]\n",
  230. p_hwfn->mcp_info->mcp_hist, generic_por_0);
  231. qed_load_mcp_offsets(p_hwfn, p_ptt);
  232. qed_mcp_cmd_port_init(p_hwfn, p_ptt);
  233. }
  234. }
  235. int qed_mcp_reset(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
  236. {
  237. u32 org_mcp_reset_seq, seq, delay = CHIP_MCP_RESP_ITER_US, cnt = 0;
  238. int rc = 0;
  239. /* Ensure that only a single thread is accessing the mailbox */
  240. spin_lock_bh(&p_hwfn->mcp_info->cmd_lock);
  241. org_mcp_reset_seq = qed_rd(p_hwfn, p_ptt, MISCS_REG_GENERIC_POR_0);
  242. /* Set drv command along with the updated sequence */
  243. qed_mcp_reread_offsets(p_hwfn, p_ptt);
  244. seq = ++p_hwfn->mcp_info->drv_mb_seq;
  245. DRV_MB_WR(p_hwfn, p_ptt, drv_mb_header, (DRV_MSG_CODE_MCP_RESET | seq));
  246. do {
  247. /* Wait for MFW response */
  248. udelay(delay);
  249. /* Give the FW up to 500 second (50*1000*10usec) */
  250. } while ((org_mcp_reset_seq == qed_rd(p_hwfn, p_ptt,
  251. MISCS_REG_GENERIC_POR_0)) &&
  252. (cnt++ < QED_MCP_RESET_RETRIES));
  253. if (org_mcp_reset_seq !=
  254. qed_rd(p_hwfn, p_ptt, MISCS_REG_GENERIC_POR_0)) {
  255. DP_VERBOSE(p_hwfn, QED_MSG_SP,
  256. "MCP was reset after %d usec\n", cnt * delay);
  257. } else {
  258. DP_ERR(p_hwfn, "Failed to reset MCP\n");
  259. rc = -EAGAIN;
  260. }
  261. spin_unlock_bh(&p_hwfn->mcp_info->cmd_lock);
  262. return rc;
  263. }
  264. /* Must be called while cmd_lock is acquired */
  265. static bool qed_mcp_has_pending_cmd(struct qed_hwfn *p_hwfn)
  266. {
  267. struct qed_mcp_cmd_elem *p_cmd_elem;
  268. /* There is at most one pending command at a certain time, and if it
  269. * exists - it is placed at the HEAD of the list.
  270. */
  271. if (!list_empty(&p_hwfn->mcp_info->cmd_list)) {
  272. p_cmd_elem = list_first_entry(&p_hwfn->mcp_info->cmd_list,
  273. struct qed_mcp_cmd_elem, list);
  274. return !p_cmd_elem->b_is_completed;
  275. }
  276. return false;
  277. }
  278. /* Must be called while cmd_lock is acquired */
  279. static int
  280. qed_mcp_update_pending_cmd(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
  281. {
  282. struct qed_mcp_mb_params *p_mb_params;
  283. struct qed_mcp_cmd_elem *p_cmd_elem;
  284. u32 mcp_resp;
  285. u16 seq_num;
  286. mcp_resp = DRV_MB_RD(p_hwfn, p_ptt, fw_mb_header);
  287. seq_num = (u16)(mcp_resp & FW_MSG_SEQ_NUMBER_MASK);
  288. /* Return if no new non-handled response has been received */
  289. if (seq_num != p_hwfn->mcp_info->drv_mb_seq)
  290. return -EAGAIN;
  291. p_cmd_elem = qed_mcp_cmd_get_elem(p_hwfn, seq_num);
  292. if (!p_cmd_elem) {
  293. DP_ERR(p_hwfn,
  294. "Failed to find a pending mailbox cmd that expects sequence number %d\n",
  295. seq_num);
  296. return -EINVAL;
  297. }
  298. p_mb_params = p_cmd_elem->p_mb_params;
  299. /* Get the MFW response along with the sequence number */
  300. p_mb_params->mcp_resp = mcp_resp;
  301. /* Get the MFW param */
  302. p_mb_params->mcp_param = DRV_MB_RD(p_hwfn, p_ptt, fw_mb_param);
  303. /* Get the union data */
  304. if (p_mb_params->p_data_dst != NULL && p_mb_params->data_dst_size) {
  305. u32 union_data_addr = p_hwfn->mcp_info->drv_mb_addr +
  306. offsetof(struct public_drv_mb,
  307. union_data);
  308. qed_memcpy_from(p_hwfn, p_ptt, p_mb_params->p_data_dst,
  309. union_data_addr, p_mb_params->data_dst_size);
  310. }
  311. p_cmd_elem->b_is_completed = true;
  312. return 0;
  313. }
  314. /* Must be called while cmd_lock is acquired */
  315. static void __qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn,
  316. struct qed_ptt *p_ptt,
  317. struct qed_mcp_mb_params *p_mb_params,
  318. u16 seq_num)
  319. {
  320. union drv_union_data union_data;
  321. u32 union_data_addr;
  322. /* Set the union data */
  323. union_data_addr = p_hwfn->mcp_info->drv_mb_addr +
  324. offsetof(struct public_drv_mb, union_data);
  325. memset(&union_data, 0, sizeof(union_data));
  326. if (p_mb_params->p_data_src != NULL && p_mb_params->data_src_size)
  327. memcpy(&union_data, p_mb_params->p_data_src,
  328. p_mb_params->data_src_size);
  329. qed_memcpy_to(p_hwfn, p_ptt, union_data_addr, &union_data,
  330. sizeof(union_data));
  331. /* Set the drv param */
  332. DRV_MB_WR(p_hwfn, p_ptt, drv_mb_param, p_mb_params->param);
  333. /* Set the drv command along with the sequence number */
  334. DRV_MB_WR(p_hwfn, p_ptt, drv_mb_header, (p_mb_params->cmd | seq_num));
  335. DP_VERBOSE(p_hwfn, QED_MSG_SP,
  336. "MFW mailbox: command 0x%08x param 0x%08x\n",
  337. (p_mb_params->cmd | seq_num), p_mb_params->param);
  338. }
  339. static int
  340. _qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn,
  341. struct qed_ptt *p_ptt,
  342. struct qed_mcp_mb_params *p_mb_params,
  343. u32 max_retries, u32 delay)
  344. {
  345. struct qed_mcp_cmd_elem *p_cmd_elem;
  346. u32 cnt = 0;
  347. u16 seq_num;
  348. int rc = 0;
  349. /* Wait until the mailbox is non-occupied */
  350. do {
  351. /* Exit the loop if there is no pending command, or if the
  352. * pending command is completed during this iteration.
  353. * The spinlock stays locked until the command is sent.
  354. */
  355. spin_lock_bh(&p_hwfn->mcp_info->cmd_lock);
  356. if (!qed_mcp_has_pending_cmd(p_hwfn))
  357. break;
  358. rc = qed_mcp_update_pending_cmd(p_hwfn, p_ptt);
  359. if (!rc)
  360. break;
  361. else if (rc != -EAGAIN)
  362. goto err;
  363. spin_unlock_bh(&p_hwfn->mcp_info->cmd_lock);
  364. udelay(delay);
  365. } while (++cnt < max_retries);
  366. if (cnt >= max_retries) {
  367. DP_NOTICE(p_hwfn,
  368. "The MFW mailbox is occupied by an uncompleted command. Failed to send command 0x%08x [param 0x%08x].\n",
  369. p_mb_params->cmd, p_mb_params->param);
  370. return -EAGAIN;
  371. }
  372. /* Send the mailbox command */
  373. qed_mcp_reread_offsets(p_hwfn, p_ptt);
  374. seq_num = ++p_hwfn->mcp_info->drv_mb_seq;
  375. p_cmd_elem = qed_mcp_cmd_add_elem(p_hwfn, p_mb_params, seq_num);
  376. if (!p_cmd_elem) {
  377. rc = -ENOMEM;
  378. goto err;
  379. }
  380. __qed_mcp_cmd_and_union(p_hwfn, p_ptt, p_mb_params, seq_num);
  381. spin_unlock_bh(&p_hwfn->mcp_info->cmd_lock);
  382. /* Wait for the MFW response */
  383. do {
  384. /* Exit the loop if the command is already completed, or if the
  385. * command is completed during this iteration.
  386. * The spinlock stays locked until the list element is removed.
  387. */
  388. udelay(delay);
  389. spin_lock_bh(&p_hwfn->mcp_info->cmd_lock);
  390. if (p_cmd_elem->b_is_completed)
  391. break;
  392. rc = qed_mcp_update_pending_cmd(p_hwfn, p_ptt);
  393. if (!rc)
  394. break;
  395. else if (rc != -EAGAIN)
  396. goto err;
  397. spin_unlock_bh(&p_hwfn->mcp_info->cmd_lock);
  398. } while (++cnt < max_retries);
  399. if (cnt >= max_retries) {
  400. DP_NOTICE(p_hwfn,
  401. "The MFW failed to respond to command 0x%08x [param 0x%08x].\n",
  402. p_mb_params->cmd, p_mb_params->param);
  403. spin_lock_bh(&p_hwfn->mcp_info->cmd_lock);
  404. qed_mcp_cmd_del_elem(p_hwfn, p_cmd_elem);
  405. spin_unlock_bh(&p_hwfn->mcp_info->cmd_lock);
  406. return -EAGAIN;
  407. }
  408. qed_mcp_cmd_del_elem(p_hwfn, p_cmd_elem);
  409. spin_unlock_bh(&p_hwfn->mcp_info->cmd_lock);
  410. DP_VERBOSE(p_hwfn,
  411. QED_MSG_SP,
  412. "MFW mailbox: response 0x%08x param 0x%08x [after %d.%03d ms]\n",
  413. p_mb_params->mcp_resp,
  414. p_mb_params->mcp_param,
  415. (cnt * delay) / 1000, (cnt * delay) % 1000);
  416. /* Clear the sequence number from the MFW response */
  417. p_mb_params->mcp_resp &= FW_MSG_CODE_MASK;
  418. return 0;
  419. err:
  420. spin_unlock_bh(&p_hwfn->mcp_info->cmd_lock);
  421. return rc;
  422. }
  423. static int qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn,
  424. struct qed_ptt *p_ptt,
  425. struct qed_mcp_mb_params *p_mb_params)
  426. {
  427. size_t union_data_size = sizeof(union drv_union_data);
  428. u32 max_retries = QED_DRV_MB_MAX_RETRIES;
  429. u32 delay = CHIP_MCP_RESP_ITER_US;
  430. /* MCP not initialized */
  431. if (!qed_mcp_is_init(p_hwfn)) {
  432. DP_NOTICE(p_hwfn, "MFW is not initialized!\n");
  433. return -EBUSY;
  434. }
  435. if (p_mb_params->data_src_size > union_data_size ||
  436. p_mb_params->data_dst_size > union_data_size) {
  437. DP_ERR(p_hwfn,
  438. "The provided size is larger than the union data size [src_size %u, dst_size %u, union_data_size %zu]\n",
  439. p_mb_params->data_src_size,
  440. p_mb_params->data_dst_size, union_data_size);
  441. return -EINVAL;
  442. }
  443. return _qed_mcp_cmd_and_union(p_hwfn, p_ptt, p_mb_params, max_retries,
  444. delay);
  445. }
  446. int qed_mcp_cmd(struct qed_hwfn *p_hwfn,
  447. struct qed_ptt *p_ptt,
  448. u32 cmd,
  449. u32 param,
  450. u32 *o_mcp_resp,
  451. u32 *o_mcp_param)
  452. {
  453. struct qed_mcp_mb_params mb_params;
  454. int rc;
  455. memset(&mb_params, 0, sizeof(mb_params));
  456. mb_params.cmd = cmd;
  457. mb_params.param = param;
  458. rc = qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
  459. if (rc)
  460. return rc;
  461. *o_mcp_resp = mb_params.mcp_resp;
  462. *o_mcp_param = mb_params.mcp_param;
  463. return 0;
  464. }
  465. int qed_mcp_nvm_wr_cmd(struct qed_hwfn *p_hwfn,
  466. struct qed_ptt *p_ptt,
  467. u32 cmd,
  468. u32 param,
  469. u32 *o_mcp_resp,
  470. u32 *o_mcp_param, u32 i_txn_size, u32 *i_buf)
  471. {
  472. struct qed_mcp_mb_params mb_params;
  473. int rc;
  474. memset(&mb_params, 0, sizeof(mb_params));
  475. mb_params.cmd = cmd;
  476. mb_params.param = param;
  477. mb_params.p_data_src = i_buf;
  478. mb_params.data_src_size = (u8)i_txn_size;
  479. rc = qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
  480. if (rc)
  481. return rc;
  482. *o_mcp_resp = mb_params.mcp_resp;
  483. *o_mcp_param = mb_params.mcp_param;
  484. return 0;
  485. }
  486. int qed_mcp_nvm_rd_cmd(struct qed_hwfn *p_hwfn,
  487. struct qed_ptt *p_ptt,
  488. u32 cmd,
  489. u32 param,
  490. u32 *o_mcp_resp,
  491. u32 *o_mcp_param, u32 *o_txn_size, u32 *o_buf)
  492. {
  493. struct qed_mcp_mb_params mb_params;
  494. u8 raw_data[MCP_DRV_NVM_BUF_LEN];
  495. int rc;
  496. memset(&mb_params, 0, sizeof(mb_params));
  497. mb_params.cmd = cmd;
  498. mb_params.param = param;
  499. mb_params.p_data_dst = raw_data;
  500. /* Use the maximal value since the actual one is part of the response */
  501. mb_params.data_dst_size = MCP_DRV_NVM_BUF_LEN;
  502. rc = qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
  503. if (rc)
  504. return rc;
  505. *o_mcp_resp = mb_params.mcp_resp;
  506. *o_mcp_param = mb_params.mcp_param;
  507. *o_txn_size = *o_mcp_param;
  508. memcpy(o_buf, raw_data, *o_txn_size);
  509. return 0;
  510. }
  511. static bool
  512. qed_mcp_can_force_load(u8 drv_role,
  513. u8 exist_drv_role,
  514. enum qed_override_force_load override_force_load)
  515. {
  516. bool can_force_load = false;
  517. switch (override_force_load) {
  518. case QED_OVERRIDE_FORCE_LOAD_ALWAYS:
  519. can_force_load = true;
  520. break;
  521. case QED_OVERRIDE_FORCE_LOAD_NEVER:
  522. can_force_load = false;
  523. break;
  524. default:
  525. can_force_load = (drv_role == DRV_ROLE_OS &&
  526. exist_drv_role == DRV_ROLE_PREBOOT) ||
  527. (drv_role == DRV_ROLE_KDUMP &&
  528. exist_drv_role == DRV_ROLE_OS);
  529. break;
  530. }
  531. return can_force_load;
  532. }
  533. static int qed_mcp_cancel_load_req(struct qed_hwfn *p_hwfn,
  534. struct qed_ptt *p_ptt)
  535. {
  536. u32 resp = 0, param = 0;
  537. int rc;
  538. rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_CANCEL_LOAD_REQ, 0,
  539. &resp, &param);
  540. if (rc)
  541. DP_NOTICE(p_hwfn,
  542. "Failed to send cancel load request, rc = %d\n", rc);
  543. return rc;
  544. }
  545. #define CONFIG_QEDE_BITMAP_IDX BIT(0)
  546. #define CONFIG_QED_SRIOV_BITMAP_IDX BIT(1)
  547. #define CONFIG_QEDR_BITMAP_IDX BIT(2)
  548. #define CONFIG_QEDF_BITMAP_IDX BIT(4)
  549. #define CONFIG_QEDI_BITMAP_IDX BIT(5)
  550. #define CONFIG_QED_LL2_BITMAP_IDX BIT(6)
  551. static u32 qed_get_config_bitmap(void)
  552. {
  553. u32 config_bitmap = 0x0;
  554. if (IS_ENABLED(CONFIG_QEDE))
  555. config_bitmap |= CONFIG_QEDE_BITMAP_IDX;
  556. if (IS_ENABLED(CONFIG_QED_SRIOV))
  557. config_bitmap |= CONFIG_QED_SRIOV_BITMAP_IDX;
  558. if (IS_ENABLED(CONFIG_QED_RDMA))
  559. config_bitmap |= CONFIG_QEDR_BITMAP_IDX;
  560. if (IS_ENABLED(CONFIG_QED_FCOE))
  561. config_bitmap |= CONFIG_QEDF_BITMAP_IDX;
  562. if (IS_ENABLED(CONFIG_QED_ISCSI))
  563. config_bitmap |= CONFIG_QEDI_BITMAP_IDX;
  564. if (IS_ENABLED(CONFIG_QED_LL2))
  565. config_bitmap |= CONFIG_QED_LL2_BITMAP_IDX;
  566. return config_bitmap;
  567. }
  568. struct qed_load_req_in_params {
  569. u8 hsi_ver;
  570. #define QED_LOAD_REQ_HSI_VER_DEFAULT 0
  571. #define QED_LOAD_REQ_HSI_VER_1 1
  572. u32 drv_ver_0;
  573. u32 drv_ver_1;
  574. u32 fw_ver;
  575. u8 drv_role;
  576. u8 timeout_val;
  577. u8 force_cmd;
  578. bool avoid_eng_reset;
  579. };
  580. struct qed_load_req_out_params {
  581. u32 load_code;
  582. u32 exist_drv_ver_0;
  583. u32 exist_drv_ver_1;
  584. u32 exist_fw_ver;
  585. u8 exist_drv_role;
  586. u8 mfw_hsi_ver;
  587. bool drv_exists;
  588. };
  589. static int
  590. __qed_mcp_load_req(struct qed_hwfn *p_hwfn,
  591. struct qed_ptt *p_ptt,
  592. struct qed_load_req_in_params *p_in_params,
  593. struct qed_load_req_out_params *p_out_params)
  594. {
  595. struct qed_mcp_mb_params mb_params;
  596. struct load_req_stc load_req;
  597. struct load_rsp_stc load_rsp;
  598. u32 hsi_ver;
  599. int rc;
  600. memset(&load_req, 0, sizeof(load_req));
  601. load_req.drv_ver_0 = p_in_params->drv_ver_0;
  602. load_req.drv_ver_1 = p_in_params->drv_ver_1;
  603. load_req.fw_ver = p_in_params->fw_ver;
  604. QED_MFW_SET_FIELD(load_req.misc0, LOAD_REQ_ROLE, p_in_params->drv_role);
  605. QED_MFW_SET_FIELD(load_req.misc0, LOAD_REQ_LOCK_TO,
  606. p_in_params->timeout_val);
  607. QED_MFW_SET_FIELD(load_req.misc0, LOAD_REQ_FORCE,
  608. p_in_params->force_cmd);
  609. QED_MFW_SET_FIELD(load_req.misc0, LOAD_REQ_FLAGS0,
  610. p_in_params->avoid_eng_reset);
  611. hsi_ver = (p_in_params->hsi_ver == QED_LOAD_REQ_HSI_VER_DEFAULT) ?
  612. DRV_ID_MCP_HSI_VER_CURRENT :
  613. (p_in_params->hsi_ver << DRV_ID_MCP_HSI_VER_SHIFT);
  614. memset(&mb_params, 0, sizeof(mb_params));
  615. mb_params.cmd = DRV_MSG_CODE_LOAD_REQ;
  616. mb_params.param = PDA_COMP | hsi_ver | p_hwfn->cdev->drv_type;
  617. mb_params.p_data_src = &load_req;
  618. mb_params.data_src_size = sizeof(load_req);
  619. mb_params.p_data_dst = &load_rsp;
  620. mb_params.data_dst_size = sizeof(load_rsp);
  621. DP_VERBOSE(p_hwfn, QED_MSG_SP,
  622. "Load Request: param 0x%08x [init_hw %d, drv_type %d, hsi_ver %d, pda 0x%04x]\n",
  623. mb_params.param,
  624. QED_MFW_GET_FIELD(mb_params.param, DRV_ID_DRV_INIT_HW),
  625. QED_MFW_GET_FIELD(mb_params.param, DRV_ID_DRV_TYPE),
  626. QED_MFW_GET_FIELD(mb_params.param, DRV_ID_MCP_HSI_VER),
  627. QED_MFW_GET_FIELD(mb_params.param, DRV_ID_PDA_COMP_VER));
  628. if (p_in_params->hsi_ver != QED_LOAD_REQ_HSI_VER_1) {
  629. DP_VERBOSE(p_hwfn, QED_MSG_SP,
  630. "Load Request: drv_ver 0x%08x_0x%08x, fw_ver 0x%08x, misc0 0x%08x [role %d, timeout %d, force %d, flags0 0x%x]\n",
  631. load_req.drv_ver_0,
  632. load_req.drv_ver_1,
  633. load_req.fw_ver,
  634. load_req.misc0,
  635. QED_MFW_GET_FIELD(load_req.misc0, LOAD_REQ_ROLE),
  636. QED_MFW_GET_FIELD(load_req.misc0,
  637. LOAD_REQ_LOCK_TO),
  638. QED_MFW_GET_FIELD(load_req.misc0, LOAD_REQ_FORCE),
  639. QED_MFW_GET_FIELD(load_req.misc0, LOAD_REQ_FLAGS0));
  640. }
  641. rc = qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
  642. if (rc) {
  643. DP_NOTICE(p_hwfn, "Failed to send load request, rc = %d\n", rc);
  644. return rc;
  645. }
  646. DP_VERBOSE(p_hwfn, QED_MSG_SP,
  647. "Load Response: resp 0x%08x\n", mb_params.mcp_resp);
  648. p_out_params->load_code = mb_params.mcp_resp;
  649. if (p_in_params->hsi_ver != QED_LOAD_REQ_HSI_VER_1 &&
  650. p_out_params->load_code != FW_MSG_CODE_DRV_LOAD_REFUSED_HSI_1) {
  651. DP_VERBOSE(p_hwfn,
  652. QED_MSG_SP,
  653. "Load Response: exist_drv_ver 0x%08x_0x%08x, exist_fw_ver 0x%08x, misc0 0x%08x [exist_role %d, mfw_hsi %d, flags0 0x%x]\n",
  654. load_rsp.drv_ver_0,
  655. load_rsp.drv_ver_1,
  656. load_rsp.fw_ver,
  657. load_rsp.misc0,
  658. QED_MFW_GET_FIELD(load_rsp.misc0, LOAD_RSP_ROLE),
  659. QED_MFW_GET_FIELD(load_rsp.misc0, LOAD_RSP_HSI),
  660. QED_MFW_GET_FIELD(load_rsp.misc0, LOAD_RSP_FLAGS0));
  661. p_out_params->exist_drv_ver_0 = load_rsp.drv_ver_0;
  662. p_out_params->exist_drv_ver_1 = load_rsp.drv_ver_1;
  663. p_out_params->exist_fw_ver = load_rsp.fw_ver;
  664. p_out_params->exist_drv_role =
  665. QED_MFW_GET_FIELD(load_rsp.misc0, LOAD_RSP_ROLE);
  666. p_out_params->mfw_hsi_ver =
  667. QED_MFW_GET_FIELD(load_rsp.misc0, LOAD_RSP_HSI);
  668. p_out_params->drv_exists =
  669. QED_MFW_GET_FIELD(load_rsp.misc0, LOAD_RSP_FLAGS0) &
  670. LOAD_RSP_FLAGS0_DRV_EXISTS;
  671. }
  672. return 0;
  673. }
  674. static int eocre_get_mfw_drv_role(struct qed_hwfn *p_hwfn,
  675. enum qed_drv_role drv_role,
  676. u8 *p_mfw_drv_role)
  677. {
  678. switch (drv_role) {
  679. case QED_DRV_ROLE_OS:
  680. *p_mfw_drv_role = DRV_ROLE_OS;
  681. break;
  682. case QED_DRV_ROLE_KDUMP:
  683. *p_mfw_drv_role = DRV_ROLE_KDUMP;
  684. break;
  685. default:
  686. DP_ERR(p_hwfn, "Unexpected driver role %d\n", drv_role);
  687. return -EINVAL;
  688. }
  689. return 0;
  690. }
  691. enum qed_load_req_force {
  692. QED_LOAD_REQ_FORCE_NONE,
  693. QED_LOAD_REQ_FORCE_PF,
  694. QED_LOAD_REQ_FORCE_ALL,
  695. };
  696. static void qed_get_mfw_force_cmd(struct qed_hwfn *p_hwfn,
  697. enum qed_load_req_force force_cmd,
  698. u8 *p_mfw_force_cmd)
  699. {
  700. switch (force_cmd) {
  701. case QED_LOAD_REQ_FORCE_NONE:
  702. *p_mfw_force_cmd = LOAD_REQ_FORCE_NONE;
  703. break;
  704. case QED_LOAD_REQ_FORCE_PF:
  705. *p_mfw_force_cmd = LOAD_REQ_FORCE_PF;
  706. break;
  707. case QED_LOAD_REQ_FORCE_ALL:
  708. *p_mfw_force_cmd = LOAD_REQ_FORCE_ALL;
  709. break;
  710. }
  711. }
  712. int qed_mcp_load_req(struct qed_hwfn *p_hwfn,
  713. struct qed_ptt *p_ptt,
  714. struct qed_load_req_params *p_params)
  715. {
  716. struct qed_load_req_out_params out_params;
  717. struct qed_load_req_in_params in_params;
  718. u8 mfw_drv_role, mfw_force_cmd;
  719. int rc;
  720. memset(&in_params, 0, sizeof(in_params));
  721. in_params.hsi_ver = QED_LOAD_REQ_HSI_VER_DEFAULT;
  722. in_params.drv_ver_0 = QED_VERSION;
  723. in_params.drv_ver_1 = qed_get_config_bitmap();
  724. in_params.fw_ver = STORM_FW_VERSION;
  725. rc = eocre_get_mfw_drv_role(p_hwfn, p_params->drv_role, &mfw_drv_role);
  726. if (rc)
  727. return rc;
  728. in_params.drv_role = mfw_drv_role;
  729. in_params.timeout_val = p_params->timeout_val;
  730. qed_get_mfw_force_cmd(p_hwfn,
  731. QED_LOAD_REQ_FORCE_NONE, &mfw_force_cmd);
  732. in_params.force_cmd = mfw_force_cmd;
  733. in_params.avoid_eng_reset = p_params->avoid_eng_reset;
  734. memset(&out_params, 0, sizeof(out_params));
  735. rc = __qed_mcp_load_req(p_hwfn, p_ptt, &in_params, &out_params);
  736. if (rc)
  737. return rc;
  738. /* First handle cases where another load request should/might be sent:
  739. * - MFW expects the old interface [HSI version = 1]
  740. * - MFW responds that a force load request is required
  741. */
  742. if (out_params.load_code == FW_MSG_CODE_DRV_LOAD_REFUSED_HSI_1) {
  743. DP_INFO(p_hwfn,
  744. "MFW refused a load request due to HSI > 1. Resending with HSI = 1\n");
  745. in_params.hsi_ver = QED_LOAD_REQ_HSI_VER_1;
  746. memset(&out_params, 0, sizeof(out_params));
  747. rc = __qed_mcp_load_req(p_hwfn, p_ptt, &in_params, &out_params);
  748. if (rc)
  749. return rc;
  750. } else if (out_params.load_code ==
  751. FW_MSG_CODE_DRV_LOAD_REFUSED_REQUIRES_FORCE) {
  752. if (qed_mcp_can_force_load(in_params.drv_role,
  753. out_params.exist_drv_role,
  754. p_params->override_force_load)) {
  755. DP_INFO(p_hwfn,
  756. "A force load is required [{role, fw_ver, drv_ver}: loading={%d, 0x%08x, x%08x_0x%08x}, existing={%d, 0x%08x, 0x%08x_0x%08x}]\n",
  757. in_params.drv_role, in_params.fw_ver,
  758. in_params.drv_ver_0, in_params.drv_ver_1,
  759. out_params.exist_drv_role,
  760. out_params.exist_fw_ver,
  761. out_params.exist_drv_ver_0,
  762. out_params.exist_drv_ver_1);
  763. qed_get_mfw_force_cmd(p_hwfn,
  764. QED_LOAD_REQ_FORCE_ALL,
  765. &mfw_force_cmd);
  766. in_params.force_cmd = mfw_force_cmd;
  767. memset(&out_params, 0, sizeof(out_params));
  768. rc = __qed_mcp_load_req(p_hwfn, p_ptt, &in_params,
  769. &out_params);
  770. if (rc)
  771. return rc;
  772. } else {
  773. DP_NOTICE(p_hwfn,
  774. "A force load is required [{role, fw_ver, drv_ver}: loading={%d, 0x%08x, x%08x_0x%08x}, existing={%d, 0x%08x, 0x%08x_0x%08x}] - Avoid\n",
  775. in_params.drv_role, in_params.fw_ver,
  776. in_params.drv_ver_0, in_params.drv_ver_1,
  777. out_params.exist_drv_role,
  778. out_params.exist_fw_ver,
  779. out_params.exist_drv_ver_0,
  780. out_params.exist_drv_ver_1);
  781. DP_NOTICE(p_hwfn,
  782. "Avoid sending a force load request to prevent disruption of active PFs\n");
  783. qed_mcp_cancel_load_req(p_hwfn, p_ptt);
  784. return -EBUSY;
  785. }
  786. }
  787. /* Now handle the other types of responses.
  788. * The "REFUSED_HSI_1" and "REFUSED_REQUIRES_FORCE" responses are not
  789. * expected here after the additional revised load requests were sent.
  790. */
  791. switch (out_params.load_code) {
  792. case FW_MSG_CODE_DRV_LOAD_ENGINE:
  793. case FW_MSG_CODE_DRV_LOAD_PORT:
  794. case FW_MSG_CODE_DRV_LOAD_FUNCTION:
  795. if (out_params.mfw_hsi_ver != QED_LOAD_REQ_HSI_VER_1 &&
  796. out_params.drv_exists) {
  797. /* The role and fw/driver version match, but the PF is
  798. * already loaded and has not been unloaded gracefully.
  799. */
  800. DP_NOTICE(p_hwfn,
  801. "PF is already loaded\n");
  802. return -EINVAL;
  803. }
  804. break;
  805. default:
  806. DP_NOTICE(p_hwfn,
  807. "Unexpected refusal to load request [resp 0x%08x]. Aborting.\n",
  808. out_params.load_code);
  809. return -EBUSY;
  810. }
  811. p_params->load_code = out_params.load_code;
  812. return 0;
  813. }
  814. int qed_mcp_unload_req(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
  815. {
  816. u32 wol_param, mcp_resp, mcp_param;
  817. switch (p_hwfn->cdev->wol_config) {
  818. case QED_OV_WOL_DISABLED:
  819. wol_param = DRV_MB_PARAM_UNLOAD_WOL_DISABLED;
  820. break;
  821. case QED_OV_WOL_ENABLED:
  822. wol_param = DRV_MB_PARAM_UNLOAD_WOL_ENABLED;
  823. break;
  824. default:
  825. DP_NOTICE(p_hwfn,
  826. "Unknown WoL configuration %02x\n",
  827. p_hwfn->cdev->wol_config);
  828. /* Fallthrough */
  829. case QED_OV_WOL_DEFAULT:
  830. wol_param = DRV_MB_PARAM_UNLOAD_WOL_MCP;
  831. }
  832. return qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_UNLOAD_REQ, wol_param,
  833. &mcp_resp, &mcp_param);
  834. }
  835. int qed_mcp_unload_done(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
  836. {
  837. struct qed_mcp_mb_params mb_params;
  838. struct mcp_mac wol_mac;
  839. memset(&mb_params, 0, sizeof(mb_params));
  840. mb_params.cmd = DRV_MSG_CODE_UNLOAD_DONE;
  841. /* Set the primary MAC if WoL is enabled */
  842. if (p_hwfn->cdev->wol_config == QED_OV_WOL_ENABLED) {
  843. u8 *p_mac = p_hwfn->cdev->wol_mac;
  844. memset(&wol_mac, 0, sizeof(wol_mac));
  845. wol_mac.mac_upper = p_mac[0] << 8 | p_mac[1];
  846. wol_mac.mac_lower = p_mac[2] << 24 | p_mac[3] << 16 |
  847. p_mac[4] << 8 | p_mac[5];
  848. DP_VERBOSE(p_hwfn,
  849. (QED_MSG_SP | NETIF_MSG_IFDOWN),
  850. "Setting WoL MAC: %pM --> [%08x,%08x]\n",
  851. p_mac, wol_mac.mac_upper, wol_mac.mac_lower);
  852. mb_params.p_data_src = &wol_mac;
  853. mb_params.data_src_size = sizeof(wol_mac);
  854. }
  855. return qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
  856. }
  857. static void qed_mcp_handle_vf_flr(struct qed_hwfn *p_hwfn,
  858. struct qed_ptt *p_ptt)
  859. {
  860. u32 addr = SECTION_OFFSIZE_ADDR(p_hwfn->mcp_info->public_base,
  861. PUBLIC_PATH);
  862. u32 mfw_path_offsize = qed_rd(p_hwfn, p_ptt, addr);
  863. u32 path_addr = SECTION_ADDR(mfw_path_offsize,
  864. QED_PATH_ID(p_hwfn));
  865. u32 disabled_vfs[VF_MAX_STATIC / 32];
  866. int i;
  867. DP_VERBOSE(p_hwfn,
  868. QED_MSG_SP,
  869. "Reading Disabled VF information from [offset %08x], path_addr %08x\n",
  870. mfw_path_offsize, path_addr);
  871. for (i = 0; i < (VF_MAX_STATIC / 32); i++) {
  872. disabled_vfs[i] = qed_rd(p_hwfn, p_ptt,
  873. path_addr +
  874. offsetof(struct public_path,
  875. mcp_vf_disabled) +
  876. sizeof(u32) * i);
  877. DP_VERBOSE(p_hwfn, (QED_MSG_SP | QED_MSG_IOV),
  878. "FLR-ed VFs [%08x,...,%08x] - %08x\n",
  879. i * 32, (i + 1) * 32 - 1, disabled_vfs[i]);
  880. }
  881. if (qed_iov_mark_vf_flr(p_hwfn, disabled_vfs))
  882. qed_schedule_iov(p_hwfn, QED_IOV_WQ_FLR_FLAG);
  883. }
  884. int qed_mcp_ack_vf_flr(struct qed_hwfn *p_hwfn,
  885. struct qed_ptt *p_ptt, u32 *vfs_to_ack)
  886. {
  887. u32 addr = SECTION_OFFSIZE_ADDR(p_hwfn->mcp_info->public_base,
  888. PUBLIC_FUNC);
  889. u32 mfw_func_offsize = qed_rd(p_hwfn, p_ptt, addr);
  890. u32 func_addr = SECTION_ADDR(mfw_func_offsize,
  891. MCP_PF_ID(p_hwfn));
  892. struct qed_mcp_mb_params mb_params;
  893. int rc;
  894. int i;
  895. for (i = 0; i < (VF_MAX_STATIC / 32); i++)
  896. DP_VERBOSE(p_hwfn, (QED_MSG_SP | QED_MSG_IOV),
  897. "Acking VFs [%08x,...,%08x] - %08x\n",
  898. i * 32, (i + 1) * 32 - 1, vfs_to_ack[i]);
  899. memset(&mb_params, 0, sizeof(mb_params));
  900. mb_params.cmd = DRV_MSG_CODE_VF_DISABLED_DONE;
  901. mb_params.p_data_src = vfs_to_ack;
  902. mb_params.data_src_size = VF_MAX_STATIC / 8;
  903. rc = qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
  904. if (rc) {
  905. DP_NOTICE(p_hwfn, "Failed to pass ACK for VF flr to MFW\n");
  906. return -EBUSY;
  907. }
  908. /* Clear the ACK bits */
  909. for (i = 0; i < (VF_MAX_STATIC / 32); i++)
  910. qed_wr(p_hwfn, p_ptt,
  911. func_addr +
  912. offsetof(struct public_func, drv_ack_vf_disabled) +
  913. i * sizeof(u32), 0);
  914. return rc;
  915. }
  916. static void qed_mcp_handle_transceiver_change(struct qed_hwfn *p_hwfn,
  917. struct qed_ptt *p_ptt)
  918. {
  919. u32 transceiver_state;
  920. transceiver_state = qed_rd(p_hwfn, p_ptt,
  921. p_hwfn->mcp_info->port_addr +
  922. offsetof(struct public_port,
  923. transceiver_data));
  924. DP_VERBOSE(p_hwfn,
  925. (NETIF_MSG_HW | QED_MSG_SP),
  926. "Received transceiver state update [0x%08x] from mfw [Addr 0x%x]\n",
  927. transceiver_state,
  928. (u32)(p_hwfn->mcp_info->port_addr +
  929. offsetof(struct public_port, transceiver_data)));
  930. transceiver_state = GET_FIELD(transceiver_state,
  931. ETH_TRANSCEIVER_STATE);
  932. if (transceiver_state == ETH_TRANSCEIVER_STATE_PRESENT)
  933. DP_NOTICE(p_hwfn, "Transceiver is present.\n");
  934. else
  935. DP_NOTICE(p_hwfn, "Transceiver is unplugged.\n");
  936. }
  937. static void qed_mcp_read_eee_config(struct qed_hwfn *p_hwfn,
  938. struct qed_ptt *p_ptt,
  939. struct qed_mcp_link_state *p_link)
  940. {
  941. u32 eee_status, val;
  942. p_link->eee_adv_caps = 0;
  943. p_link->eee_lp_adv_caps = 0;
  944. eee_status = qed_rd(p_hwfn,
  945. p_ptt,
  946. p_hwfn->mcp_info->port_addr +
  947. offsetof(struct public_port, eee_status));
  948. p_link->eee_active = !!(eee_status & EEE_ACTIVE_BIT);
  949. val = (eee_status & EEE_LD_ADV_STATUS_MASK) >> EEE_LD_ADV_STATUS_OFFSET;
  950. if (val & EEE_1G_ADV)
  951. p_link->eee_adv_caps |= QED_EEE_1G_ADV;
  952. if (val & EEE_10G_ADV)
  953. p_link->eee_adv_caps |= QED_EEE_10G_ADV;
  954. val = (eee_status & EEE_LP_ADV_STATUS_MASK) >> EEE_LP_ADV_STATUS_OFFSET;
  955. if (val & EEE_1G_ADV)
  956. p_link->eee_lp_adv_caps |= QED_EEE_1G_ADV;
  957. if (val & EEE_10G_ADV)
  958. p_link->eee_lp_adv_caps |= QED_EEE_10G_ADV;
  959. }
  960. static void qed_mcp_handle_link_change(struct qed_hwfn *p_hwfn,
  961. struct qed_ptt *p_ptt, bool b_reset)
  962. {
  963. struct qed_mcp_link_state *p_link;
  964. u8 max_bw, min_bw;
  965. u32 status = 0;
  966. /* Prevent SW/attentions from doing this at the same time */
  967. spin_lock_bh(&p_hwfn->mcp_info->link_lock);
  968. p_link = &p_hwfn->mcp_info->link_output;
  969. memset(p_link, 0, sizeof(*p_link));
  970. if (!b_reset) {
  971. status = qed_rd(p_hwfn, p_ptt,
  972. p_hwfn->mcp_info->port_addr +
  973. offsetof(struct public_port, link_status));
  974. DP_VERBOSE(p_hwfn, (NETIF_MSG_LINK | QED_MSG_SP),
  975. "Received link update [0x%08x] from mfw [Addr 0x%x]\n",
  976. status,
  977. (u32)(p_hwfn->mcp_info->port_addr +
  978. offsetof(struct public_port, link_status)));
  979. } else {
  980. DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
  981. "Resetting link indications\n");
  982. goto out;
  983. }
  984. if (p_hwfn->b_drv_link_init)
  985. p_link->link_up = !!(status & LINK_STATUS_LINK_UP);
  986. else
  987. p_link->link_up = false;
  988. p_link->full_duplex = true;
  989. switch ((status & LINK_STATUS_SPEED_AND_DUPLEX_MASK)) {
  990. case LINK_STATUS_SPEED_AND_DUPLEX_100G:
  991. p_link->speed = 100000;
  992. break;
  993. case LINK_STATUS_SPEED_AND_DUPLEX_50G:
  994. p_link->speed = 50000;
  995. break;
  996. case LINK_STATUS_SPEED_AND_DUPLEX_40G:
  997. p_link->speed = 40000;
  998. break;
  999. case LINK_STATUS_SPEED_AND_DUPLEX_25G:
  1000. p_link->speed = 25000;
  1001. break;
  1002. case LINK_STATUS_SPEED_AND_DUPLEX_20G:
  1003. p_link->speed = 20000;
  1004. break;
  1005. case LINK_STATUS_SPEED_AND_DUPLEX_10G:
  1006. p_link->speed = 10000;
  1007. break;
  1008. case LINK_STATUS_SPEED_AND_DUPLEX_1000THD:
  1009. p_link->full_duplex = false;
  1010. /* Fall-through */
  1011. case LINK_STATUS_SPEED_AND_DUPLEX_1000TFD:
  1012. p_link->speed = 1000;
  1013. break;
  1014. default:
  1015. p_link->speed = 0;
  1016. }
  1017. if (p_link->link_up && p_link->speed)
  1018. p_link->line_speed = p_link->speed;
  1019. else
  1020. p_link->line_speed = 0;
  1021. max_bw = p_hwfn->mcp_info->func_info.bandwidth_max;
  1022. min_bw = p_hwfn->mcp_info->func_info.bandwidth_min;
  1023. /* Max bandwidth configuration */
  1024. __qed_configure_pf_max_bandwidth(p_hwfn, p_ptt, p_link, max_bw);
  1025. /* Min bandwidth configuration */
  1026. __qed_configure_pf_min_bandwidth(p_hwfn, p_ptt, p_link, min_bw);
  1027. qed_configure_vp_wfq_on_link_change(p_hwfn->cdev, p_ptt,
  1028. p_link->min_pf_rate);
  1029. p_link->an = !!(status & LINK_STATUS_AUTO_NEGOTIATE_ENABLED);
  1030. p_link->an_complete = !!(status &
  1031. LINK_STATUS_AUTO_NEGOTIATE_COMPLETE);
  1032. p_link->parallel_detection = !!(status &
  1033. LINK_STATUS_PARALLEL_DETECTION_USED);
  1034. p_link->pfc_enabled = !!(status & LINK_STATUS_PFC_ENABLED);
  1035. p_link->partner_adv_speed |=
  1036. (status & LINK_STATUS_LINK_PARTNER_1000TFD_CAPABLE) ?
  1037. QED_LINK_PARTNER_SPEED_1G_FD : 0;
  1038. p_link->partner_adv_speed |=
  1039. (status & LINK_STATUS_LINK_PARTNER_1000THD_CAPABLE) ?
  1040. QED_LINK_PARTNER_SPEED_1G_HD : 0;
  1041. p_link->partner_adv_speed |=
  1042. (status & LINK_STATUS_LINK_PARTNER_10G_CAPABLE) ?
  1043. QED_LINK_PARTNER_SPEED_10G : 0;
  1044. p_link->partner_adv_speed |=
  1045. (status & LINK_STATUS_LINK_PARTNER_20G_CAPABLE) ?
  1046. QED_LINK_PARTNER_SPEED_20G : 0;
  1047. p_link->partner_adv_speed |=
  1048. (status & LINK_STATUS_LINK_PARTNER_25G_CAPABLE) ?
  1049. QED_LINK_PARTNER_SPEED_25G : 0;
  1050. p_link->partner_adv_speed |=
  1051. (status & LINK_STATUS_LINK_PARTNER_40G_CAPABLE) ?
  1052. QED_LINK_PARTNER_SPEED_40G : 0;
  1053. p_link->partner_adv_speed |=
  1054. (status & LINK_STATUS_LINK_PARTNER_50G_CAPABLE) ?
  1055. QED_LINK_PARTNER_SPEED_50G : 0;
  1056. p_link->partner_adv_speed |=
  1057. (status & LINK_STATUS_LINK_PARTNER_100G_CAPABLE) ?
  1058. QED_LINK_PARTNER_SPEED_100G : 0;
  1059. p_link->partner_tx_flow_ctrl_en =
  1060. !!(status & LINK_STATUS_TX_FLOW_CONTROL_ENABLED);
  1061. p_link->partner_rx_flow_ctrl_en =
  1062. !!(status & LINK_STATUS_RX_FLOW_CONTROL_ENABLED);
  1063. switch (status & LINK_STATUS_LINK_PARTNER_FLOW_CONTROL_MASK) {
  1064. case LINK_STATUS_LINK_PARTNER_SYMMETRIC_PAUSE:
  1065. p_link->partner_adv_pause = QED_LINK_PARTNER_SYMMETRIC_PAUSE;
  1066. break;
  1067. case LINK_STATUS_LINK_PARTNER_ASYMMETRIC_PAUSE:
  1068. p_link->partner_adv_pause = QED_LINK_PARTNER_ASYMMETRIC_PAUSE;
  1069. break;
  1070. case LINK_STATUS_LINK_PARTNER_BOTH_PAUSE:
  1071. p_link->partner_adv_pause = QED_LINK_PARTNER_BOTH_PAUSE;
  1072. break;
  1073. default:
  1074. p_link->partner_adv_pause = 0;
  1075. }
  1076. p_link->sfp_tx_fault = !!(status & LINK_STATUS_SFP_TX_FAULT);
  1077. if (p_hwfn->mcp_info->capabilities & FW_MB_PARAM_FEATURE_SUPPORT_EEE)
  1078. qed_mcp_read_eee_config(p_hwfn, p_ptt, p_link);
  1079. qed_link_update(p_hwfn);
  1080. out:
  1081. spin_unlock_bh(&p_hwfn->mcp_info->link_lock);
  1082. }
  1083. int qed_mcp_set_link(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, bool b_up)
  1084. {
  1085. struct qed_mcp_link_params *params = &p_hwfn->mcp_info->link_input;
  1086. struct qed_mcp_mb_params mb_params;
  1087. struct eth_phy_cfg phy_cfg;
  1088. int rc = 0;
  1089. u32 cmd;
  1090. /* Set the shmem configuration according to params */
  1091. memset(&phy_cfg, 0, sizeof(phy_cfg));
  1092. cmd = b_up ? DRV_MSG_CODE_INIT_PHY : DRV_MSG_CODE_LINK_RESET;
  1093. if (!params->speed.autoneg)
  1094. phy_cfg.speed = params->speed.forced_speed;
  1095. phy_cfg.pause |= (params->pause.autoneg) ? ETH_PAUSE_AUTONEG : 0;
  1096. phy_cfg.pause |= (params->pause.forced_rx) ? ETH_PAUSE_RX : 0;
  1097. phy_cfg.pause |= (params->pause.forced_tx) ? ETH_PAUSE_TX : 0;
  1098. phy_cfg.adv_speed = params->speed.advertised_speeds;
  1099. phy_cfg.loopback_mode = params->loopback_mode;
  1100. if (p_hwfn->mcp_info->capabilities & FW_MB_PARAM_FEATURE_SUPPORT_EEE) {
  1101. if (params->eee.enable)
  1102. phy_cfg.eee_cfg |= EEE_CFG_EEE_ENABLED;
  1103. if (params->eee.tx_lpi_enable)
  1104. phy_cfg.eee_cfg |= EEE_CFG_TX_LPI;
  1105. if (params->eee.adv_caps & QED_EEE_1G_ADV)
  1106. phy_cfg.eee_cfg |= EEE_CFG_ADV_SPEED_1G;
  1107. if (params->eee.adv_caps & QED_EEE_10G_ADV)
  1108. phy_cfg.eee_cfg |= EEE_CFG_ADV_SPEED_10G;
  1109. phy_cfg.eee_cfg |= (params->eee.tx_lpi_timer <<
  1110. EEE_TX_TIMER_USEC_OFFSET) &
  1111. EEE_TX_TIMER_USEC_MASK;
  1112. }
  1113. p_hwfn->b_drv_link_init = b_up;
  1114. if (b_up) {
  1115. DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
  1116. "Configuring Link: Speed 0x%08x, Pause 0x%08x, adv_speed 0x%08x, loopback 0x%08x, features 0x%08x\n",
  1117. phy_cfg.speed,
  1118. phy_cfg.pause,
  1119. phy_cfg.adv_speed,
  1120. phy_cfg.loopback_mode,
  1121. phy_cfg.feature_config_flags);
  1122. } else {
  1123. DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
  1124. "Resetting link\n");
  1125. }
  1126. memset(&mb_params, 0, sizeof(mb_params));
  1127. mb_params.cmd = cmd;
  1128. mb_params.p_data_src = &phy_cfg;
  1129. mb_params.data_src_size = sizeof(phy_cfg);
  1130. rc = qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
  1131. /* if mcp fails to respond we must abort */
  1132. if (rc) {
  1133. DP_ERR(p_hwfn, "MCP response failure, aborting\n");
  1134. return rc;
  1135. }
  1136. /* Mimic link-change attention, done for several reasons:
  1137. * - On reset, there's no guarantee MFW would trigger
  1138. * an attention.
  1139. * - On initialization, older MFWs might not indicate link change
  1140. * during LFA, so we'll never get an UP indication.
  1141. */
  1142. qed_mcp_handle_link_change(p_hwfn, p_ptt, !b_up);
  1143. return 0;
  1144. }
  1145. static void qed_mcp_send_protocol_stats(struct qed_hwfn *p_hwfn,
  1146. struct qed_ptt *p_ptt,
  1147. enum MFW_DRV_MSG_TYPE type)
  1148. {
  1149. enum qed_mcp_protocol_type stats_type;
  1150. union qed_mcp_protocol_stats stats;
  1151. struct qed_mcp_mb_params mb_params;
  1152. u32 hsi_param;
  1153. switch (type) {
  1154. case MFW_DRV_MSG_GET_LAN_STATS:
  1155. stats_type = QED_MCP_LAN_STATS;
  1156. hsi_param = DRV_MSG_CODE_STATS_TYPE_LAN;
  1157. break;
  1158. case MFW_DRV_MSG_GET_FCOE_STATS:
  1159. stats_type = QED_MCP_FCOE_STATS;
  1160. hsi_param = DRV_MSG_CODE_STATS_TYPE_FCOE;
  1161. break;
  1162. case MFW_DRV_MSG_GET_ISCSI_STATS:
  1163. stats_type = QED_MCP_ISCSI_STATS;
  1164. hsi_param = DRV_MSG_CODE_STATS_TYPE_ISCSI;
  1165. break;
  1166. case MFW_DRV_MSG_GET_RDMA_STATS:
  1167. stats_type = QED_MCP_RDMA_STATS;
  1168. hsi_param = DRV_MSG_CODE_STATS_TYPE_RDMA;
  1169. break;
  1170. default:
  1171. DP_NOTICE(p_hwfn, "Invalid protocol type %d\n", type);
  1172. return;
  1173. }
  1174. qed_get_protocol_stats(p_hwfn->cdev, stats_type, &stats);
  1175. memset(&mb_params, 0, sizeof(mb_params));
  1176. mb_params.cmd = DRV_MSG_CODE_GET_STATS;
  1177. mb_params.param = hsi_param;
  1178. mb_params.p_data_src = &stats;
  1179. mb_params.data_src_size = sizeof(stats);
  1180. qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
  1181. }
  1182. static void qed_read_pf_bandwidth(struct qed_hwfn *p_hwfn,
  1183. struct public_func *p_shmem_info)
  1184. {
  1185. struct qed_mcp_function_info *p_info;
  1186. p_info = &p_hwfn->mcp_info->func_info;
  1187. p_info->bandwidth_min = (p_shmem_info->config &
  1188. FUNC_MF_CFG_MIN_BW_MASK) >>
  1189. FUNC_MF_CFG_MIN_BW_SHIFT;
  1190. if (p_info->bandwidth_min < 1 || p_info->bandwidth_min > 100) {
  1191. DP_INFO(p_hwfn,
  1192. "bandwidth minimum out of bounds [%02x]. Set to 1\n",
  1193. p_info->bandwidth_min);
  1194. p_info->bandwidth_min = 1;
  1195. }
  1196. p_info->bandwidth_max = (p_shmem_info->config &
  1197. FUNC_MF_CFG_MAX_BW_MASK) >>
  1198. FUNC_MF_CFG_MAX_BW_SHIFT;
  1199. if (p_info->bandwidth_max < 1 || p_info->bandwidth_max > 100) {
  1200. DP_INFO(p_hwfn,
  1201. "bandwidth maximum out of bounds [%02x]. Set to 100\n",
  1202. p_info->bandwidth_max);
  1203. p_info->bandwidth_max = 100;
  1204. }
  1205. }
  1206. static u32 qed_mcp_get_shmem_func(struct qed_hwfn *p_hwfn,
  1207. struct qed_ptt *p_ptt,
  1208. struct public_func *p_data, int pfid)
  1209. {
  1210. u32 addr = SECTION_OFFSIZE_ADDR(p_hwfn->mcp_info->public_base,
  1211. PUBLIC_FUNC);
  1212. u32 mfw_path_offsize = qed_rd(p_hwfn, p_ptt, addr);
  1213. u32 func_addr = SECTION_ADDR(mfw_path_offsize, pfid);
  1214. u32 i, size;
  1215. memset(p_data, 0, sizeof(*p_data));
  1216. size = min_t(u32, sizeof(*p_data), QED_SECTION_SIZE(mfw_path_offsize));
  1217. for (i = 0; i < size / sizeof(u32); i++)
  1218. ((u32 *)p_data)[i] = qed_rd(p_hwfn, p_ptt,
  1219. func_addr + (i << 2));
  1220. return size;
  1221. }
  1222. static void qed_mcp_update_bw(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
  1223. {
  1224. struct qed_mcp_function_info *p_info;
  1225. struct public_func shmem_info;
  1226. u32 resp = 0, param = 0;
  1227. qed_mcp_get_shmem_func(p_hwfn, p_ptt, &shmem_info, MCP_PF_ID(p_hwfn));
  1228. qed_read_pf_bandwidth(p_hwfn, &shmem_info);
  1229. p_info = &p_hwfn->mcp_info->func_info;
  1230. qed_configure_pf_min_bandwidth(p_hwfn->cdev, p_info->bandwidth_min);
  1231. qed_configure_pf_max_bandwidth(p_hwfn->cdev, p_info->bandwidth_max);
  1232. /* Acknowledge the MFW */
  1233. qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_BW_UPDATE_ACK, 0, &resp,
  1234. &param);
  1235. }
  1236. static void qed_mcp_update_stag(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
  1237. {
  1238. struct public_func shmem_info;
  1239. u32 resp = 0, param = 0;
  1240. qed_mcp_get_shmem_func(p_hwfn, p_ptt, &shmem_info, MCP_PF_ID(p_hwfn));
  1241. p_hwfn->mcp_info->func_info.ovlan = (u16)shmem_info.ovlan_stag &
  1242. FUNC_MF_CFG_OV_STAG_MASK;
  1243. p_hwfn->hw_info.ovlan = p_hwfn->mcp_info->func_info.ovlan;
  1244. if ((p_hwfn->hw_info.hw_mode & BIT(MODE_MF_SD)) &&
  1245. (p_hwfn->hw_info.ovlan != QED_MCP_VLAN_UNSET)) {
  1246. qed_wr(p_hwfn, p_ptt,
  1247. NIG_REG_LLH_FUNC_TAG_VALUE, p_hwfn->hw_info.ovlan);
  1248. qed_sp_pf_update_stag(p_hwfn);
  1249. }
  1250. /* Acknowledge the MFW */
  1251. qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_S_TAG_UPDATE_ACK, 0,
  1252. &resp, &param);
  1253. }
  1254. int qed_mcp_handle_events(struct qed_hwfn *p_hwfn,
  1255. struct qed_ptt *p_ptt)
  1256. {
  1257. struct qed_mcp_info *info = p_hwfn->mcp_info;
  1258. int rc = 0;
  1259. bool found = false;
  1260. u16 i;
  1261. DP_VERBOSE(p_hwfn, QED_MSG_SP, "Received message from MFW\n");
  1262. /* Read Messages from MFW */
  1263. qed_mcp_read_mb(p_hwfn, p_ptt);
  1264. /* Compare current messages to old ones */
  1265. for (i = 0; i < info->mfw_mb_length; i++) {
  1266. if (info->mfw_mb_cur[i] == info->mfw_mb_shadow[i])
  1267. continue;
  1268. found = true;
  1269. DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
  1270. "Msg [%d] - old CMD 0x%02x, new CMD 0x%02x\n",
  1271. i, info->mfw_mb_shadow[i], info->mfw_mb_cur[i]);
  1272. switch (i) {
  1273. case MFW_DRV_MSG_LINK_CHANGE:
  1274. qed_mcp_handle_link_change(p_hwfn, p_ptt, false);
  1275. break;
  1276. case MFW_DRV_MSG_VF_DISABLED:
  1277. qed_mcp_handle_vf_flr(p_hwfn, p_ptt);
  1278. break;
  1279. case MFW_DRV_MSG_LLDP_DATA_UPDATED:
  1280. qed_dcbx_mib_update_event(p_hwfn, p_ptt,
  1281. QED_DCBX_REMOTE_LLDP_MIB);
  1282. break;
  1283. case MFW_DRV_MSG_DCBX_REMOTE_MIB_UPDATED:
  1284. qed_dcbx_mib_update_event(p_hwfn, p_ptt,
  1285. QED_DCBX_REMOTE_MIB);
  1286. break;
  1287. case MFW_DRV_MSG_DCBX_OPERATIONAL_MIB_UPDATED:
  1288. qed_dcbx_mib_update_event(p_hwfn, p_ptt,
  1289. QED_DCBX_OPERATIONAL_MIB);
  1290. break;
  1291. case MFW_DRV_MSG_TRANSCEIVER_STATE_CHANGE:
  1292. qed_mcp_handle_transceiver_change(p_hwfn, p_ptt);
  1293. break;
  1294. case MFW_DRV_MSG_GET_LAN_STATS:
  1295. case MFW_DRV_MSG_GET_FCOE_STATS:
  1296. case MFW_DRV_MSG_GET_ISCSI_STATS:
  1297. case MFW_DRV_MSG_GET_RDMA_STATS:
  1298. qed_mcp_send_protocol_stats(p_hwfn, p_ptt, i);
  1299. break;
  1300. case MFW_DRV_MSG_BW_UPDATE:
  1301. qed_mcp_update_bw(p_hwfn, p_ptt);
  1302. break;
  1303. case MFW_DRV_MSG_S_TAG_UPDATE:
  1304. qed_mcp_update_stag(p_hwfn, p_ptt);
  1305. break;
  1306. break;
  1307. default:
  1308. DP_INFO(p_hwfn, "Unimplemented MFW message %d\n", i);
  1309. rc = -EINVAL;
  1310. }
  1311. }
  1312. /* ACK everything */
  1313. for (i = 0; i < MFW_DRV_MSG_MAX_DWORDS(info->mfw_mb_length); i++) {
  1314. __be32 val = cpu_to_be32(((u32 *)info->mfw_mb_cur)[i]);
  1315. /* MFW expect answer in BE, so we force write in that format */
  1316. qed_wr(p_hwfn, p_ptt,
  1317. info->mfw_mb_addr + sizeof(u32) +
  1318. MFW_DRV_MSG_MAX_DWORDS(info->mfw_mb_length) *
  1319. sizeof(u32) + i * sizeof(u32),
  1320. (__force u32)val);
  1321. }
  1322. if (!found) {
  1323. DP_NOTICE(p_hwfn,
  1324. "Received an MFW message indication but no new message!\n");
  1325. rc = -EINVAL;
  1326. }
  1327. /* Copy the new mfw messages into the shadow */
  1328. memcpy(info->mfw_mb_shadow, info->mfw_mb_cur, info->mfw_mb_length);
  1329. return rc;
  1330. }
  1331. int qed_mcp_get_mfw_ver(struct qed_hwfn *p_hwfn,
  1332. struct qed_ptt *p_ptt,
  1333. u32 *p_mfw_ver, u32 *p_running_bundle_id)
  1334. {
  1335. u32 global_offsize;
  1336. if (IS_VF(p_hwfn->cdev)) {
  1337. if (p_hwfn->vf_iov_info) {
  1338. struct pfvf_acquire_resp_tlv *p_resp;
  1339. p_resp = &p_hwfn->vf_iov_info->acquire_resp;
  1340. *p_mfw_ver = p_resp->pfdev_info.mfw_ver;
  1341. return 0;
  1342. } else {
  1343. DP_VERBOSE(p_hwfn,
  1344. QED_MSG_IOV,
  1345. "VF requested MFW version prior to ACQUIRE\n");
  1346. return -EINVAL;
  1347. }
  1348. }
  1349. global_offsize = qed_rd(p_hwfn, p_ptt,
  1350. SECTION_OFFSIZE_ADDR(p_hwfn->
  1351. mcp_info->public_base,
  1352. PUBLIC_GLOBAL));
  1353. *p_mfw_ver =
  1354. qed_rd(p_hwfn, p_ptt,
  1355. SECTION_ADDR(global_offsize,
  1356. 0) + offsetof(struct public_global, mfw_ver));
  1357. if (p_running_bundle_id != NULL) {
  1358. *p_running_bundle_id = qed_rd(p_hwfn, p_ptt,
  1359. SECTION_ADDR(global_offsize, 0) +
  1360. offsetof(struct public_global,
  1361. running_bundle_id));
  1362. }
  1363. return 0;
  1364. }
  1365. int qed_mcp_get_mbi_ver(struct qed_hwfn *p_hwfn,
  1366. struct qed_ptt *p_ptt, u32 *p_mbi_ver)
  1367. {
  1368. u32 nvm_cfg_addr, nvm_cfg1_offset, mbi_ver_addr;
  1369. if (IS_VF(p_hwfn->cdev))
  1370. return -EINVAL;
  1371. /* Read the address of the nvm_cfg */
  1372. nvm_cfg_addr = qed_rd(p_hwfn, p_ptt, MISC_REG_GEN_PURP_CR0);
  1373. if (!nvm_cfg_addr) {
  1374. DP_NOTICE(p_hwfn, "Shared memory not initialized\n");
  1375. return -EINVAL;
  1376. }
  1377. /* Read the offset of nvm_cfg1 */
  1378. nvm_cfg1_offset = qed_rd(p_hwfn, p_ptt, nvm_cfg_addr + 4);
  1379. mbi_ver_addr = MCP_REG_SCRATCH + nvm_cfg1_offset +
  1380. offsetof(struct nvm_cfg1, glob) +
  1381. offsetof(struct nvm_cfg1_glob, mbi_version);
  1382. *p_mbi_ver = qed_rd(p_hwfn, p_ptt,
  1383. mbi_ver_addr) &
  1384. (NVM_CFG1_GLOB_MBI_VERSION_0_MASK |
  1385. NVM_CFG1_GLOB_MBI_VERSION_1_MASK |
  1386. NVM_CFG1_GLOB_MBI_VERSION_2_MASK);
  1387. return 0;
  1388. }
  1389. int qed_mcp_get_media_type(struct qed_dev *cdev, u32 *p_media_type)
  1390. {
  1391. struct qed_hwfn *p_hwfn = &cdev->hwfns[0];
  1392. struct qed_ptt *p_ptt;
  1393. if (IS_VF(cdev))
  1394. return -EINVAL;
  1395. if (!qed_mcp_is_init(p_hwfn)) {
  1396. DP_NOTICE(p_hwfn, "MFW is not initialized!\n");
  1397. return -EBUSY;
  1398. }
  1399. *p_media_type = MEDIA_UNSPECIFIED;
  1400. p_ptt = qed_ptt_acquire(p_hwfn);
  1401. if (!p_ptt)
  1402. return -EBUSY;
  1403. *p_media_type = qed_rd(p_hwfn, p_ptt, p_hwfn->mcp_info->port_addr +
  1404. offsetof(struct public_port, media_type));
  1405. qed_ptt_release(p_hwfn, p_ptt);
  1406. return 0;
  1407. }
  1408. /* Old MFW has a global configuration for all PFs regarding RDMA support */
  1409. static void
  1410. qed_mcp_get_shmem_proto_legacy(struct qed_hwfn *p_hwfn,
  1411. enum qed_pci_personality *p_proto)
  1412. {
  1413. /* There wasn't ever a legacy MFW that published iwarp.
  1414. * So at this point, this is either plain l2 or RoCE.
  1415. */
  1416. if (test_bit(QED_DEV_CAP_ROCE, &p_hwfn->hw_info.device_capabilities))
  1417. *p_proto = QED_PCI_ETH_ROCE;
  1418. else
  1419. *p_proto = QED_PCI_ETH;
  1420. DP_VERBOSE(p_hwfn, NETIF_MSG_IFUP,
  1421. "According to Legacy capabilities, L2 personality is %08x\n",
  1422. (u32) *p_proto);
  1423. }
  1424. static int
  1425. qed_mcp_get_shmem_proto_mfw(struct qed_hwfn *p_hwfn,
  1426. struct qed_ptt *p_ptt,
  1427. enum qed_pci_personality *p_proto)
  1428. {
  1429. u32 resp = 0, param = 0;
  1430. int rc;
  1431. rc = qed_mcp_cmd(p_hwfn, p_ptt,
  1432. DRV_MSG_CODE_GET_PF_RDMA_PROTOCOL, 0, &resp, &param);
  1433. if (rc)
  1434. return rc;
  1435. if (resp != FW_MSG_CODE_OK) {
  1436. DP_VERBOSE(p_hwfn, NETIF_MSG_IFUP,
  1437. "MFW lacks support for command; Returns %08x\n",
  1438. resp);
  1439. return -EINVAL;
  1440. }
  1441. switch (param) {
  1442. case FW_MB_PARAM_GET_PF_RDMA_NONE:
  1443. *p_proto = QED_PCI_ETH;
  1444. break;
  1445. case FW_MB_PARAM_GET_PF_RDMA_ROCE:
  1446. *p_proto = QED_PCI_ETH_ROCE;
  1447. break;
  1448. case FW_MB_PARAM_GET_PF_RDMA_IWARP:
  1449. *p_proto = QED_PCI_ETH_IWARP;
  1450. break;
  1451. case FW_MB_PARAM_GET_PF_RDMA_BOTH:
  1452. *p_proto = QED_PCI_ETH_RDMA;
  1453. break;
  1454. default:
  1455. DP_NOTICE(p_hwfn,
  1456. "MFW answers GET_PF_RDMA_PROTOCOL but param is %08x\n",
  1457. param);
  1458. return -EINVAL;
  1459. }
  1460. DP_VERBOSE(p_hwfn,
  1461. NETIF_MSG_IFUP,
  1462. "According to capabilities, L2 personality is %08x [resp %08x param %08x]\n",
  1463. (u32) *p_proto, resp, param);
  1464. return 0;
  1465. }
  1466. static int
  1467. qed_mcp_get_shmem_proto(struct qed_hwfn *p_hwfn,
  1468. struct public_func *p_info,
  1469. struct qed_ptt *p_ptt,
  1470. enum qed_pci_personality *p_proto)
  1471. {
  1472. int rc = 0;
  1473. switch (p_info->config & FUNC_MF_CFG_PROTOCOL_MASK) {
  1474. case FUNC_MF_CFG_PROTOCOL_ETHERNET:
  1475. if (!IS_ENABLED(CONFIG_QED_RDMA))
  1476. *p_proto = QED_PCI_ETH;
  1477. else if (qed_mcp_get_shmem_proto_mfw(p_hwfn, p_ptt, p_proto))
  1478. qed_mcp_get_shmem_proto_legacy(p_hwfn, p_proto);
  1479. break;
  1480. case FUNC_MF_CFG_PROTOCOL_ISCSI:
  1481. *p_proto = QED_PCI_ISCSI;
  1482. break;
  1483. case FUNC_MF_CFG_PROTOCOL_FCOE:
  1484. *p_proto = QED_PCI_FCOE;
  1485. break;
  1486. case FUNC_MF_CFG_PROTOCOL_ROCE:
  1487. DP_NOTICE(p_hwfn, "RoCE personality is not a valid value!\n");
  1488. /* Fallthrough */
  1489. default:
  1490. rc = -EINVAL;
  1491. }
  1492. return rc;
  1493. }
  1494. int qed_mcp_fill_shmem_func_info(struct qed_hwfn *p_hwfn,
  1495. struct qed_ptt *p_ptt)
  1496. {
  1497. struct qed_mcp_function_info *info;
  1498. struct public_func shmem_info;
  1499. qed_mcp_get_shmem_func(p_hwfn, p_ptt, &shmem_info, MCP_PF_ID(p_hwfn));
  1500. info = &p_hwfn->mcp_info->func_info;
  1501. info->pause_on_host = (shmem_info.config &
  1502. FUNC_MF_CFG_PAUSE_ON_HOST_RING) ? 1 : 0;
  1503. if (qed_mcp_get_shmem_proto(p_hwfn, &shmem_info, p_ptt,
  1504. &info->protocol)) {
  1505. DP_ERR(p_hwfn, "Unknown personality %08x\n",
  1506. (u32)(shmem_info.config & FUNC_MF_CFG_PROTOCOL_MASK));
  1507. return -EINVAL;
  1508. }
  1509. qed_read_pf_bandwidth(p_hwfn, &shmem_info);
  1510. if (shmem_info.mac_upper || shmem_info.mac_lower) {
  1511. info->mac[0] = (u8)(shmem_info.mac_upper >> 8);
  1512. info->mac[1] = (u8)(shmem_info.mac_upper);
  1513. info->mac[2] = (u8)(shmem_info.mac_lower >> 24);
  1514. info->mac[3] = (u8)(shmem_info.mac_lower >> 16);
  1515. info->mac[4] = (u8)(shmem_info.mac_lower >> 8);
  1516. info->mac[5] = (u8)(shmem_info.mac_lower);
  1517. /* Store primary MAC for later possible WoL */
  1518. memcpy(&p_hwfn->cdev->wol_mac, info->mac, ETH_ALEN);
  1519. } else {
  1520. DP_NOTICE(p_hwfn, "MAC is 0 in shmem\n");
  1521. }
  1522. info->wwn_port = (u64)shmem_info.fcoe_wwn_port_name_lower |
  1523. (((u64)shmem_info.fcoe_wwn_port_name_upper) << 32);
  1524. info->wwn_node = (u64)shmem_info.fcoe_wwn_node_name_lower |
  1525. (((u64)shmem_info.fcoe_wwn_node_name_upper) << 32);
  1526. info->ovlan = (u16)(shmem_info.ovlan_stag & FUNC_MF_CFG_OV_STAG_MASK);
  1527. info->mtu = (u16)shmem_info.mtu_size;
  1528. p_hwfn->hw_info.b_wol_support = QED_WOL_SUPPORT_NONE;
  1529. p_hwfn->cdev->wol_config = (u8)QED_OV_WOL_DEFAULT;
  1530. if (qed_mcp_is_init(p_hwfn)) {
  1531. u32 resp = 0, param = 0;
  1532. int rc;
  1533. rc = qed_mcp_cmd(p_hwfn, p_ptt,
  1534. DRV_MSG_CODE_OS_WOL, 0, &resp, &param);
  1535. if (rc)
  1536. return rc;
  1537. if (resp == FW_MSG_CODE_OS_WOL_SUPPORTED)
  1538. p_hwfn->hw_info.b_wol_support = QED_WOL_SUPPORT_PME;
  1539. }
  1540. DP_VERBOSE(p_hwfn, (QED_MSG_SP | NETIF_MSG_IFUP),
  1541. "Read configuration from shmem: pause_on_host %02x protocol %02x BW [%02x - %02x] MAC %02x:%02x:%02x:%02x:%02x:%02x wwn port %llx node %llx ovlan %04x wol %02x\n",
  1542. info->pause_on_host, info->protocol,
  1543. info->bandwidth_min, info->bandwidth_max,
  1544. info->mac[0], info->mac[1], info->mac[2],
  1545. info->mac[3], info->mac[4], info->mac[5],
  1546. info->wwn_port, info->wwn_node,
  1547. info->ovlan, (u8)p_hwfn->hw_info.b_wol_support);
  1548. return 0;
  1549. }
  1550. struct qed_mcp_link_params
  1551. *qed_mcp_get_link_params(struct qed_hwfn *p_hwfn)
  1552. {
  1553. if (!p_hwfn || !p_hwfn->mcp_info)
  1554. return NULL;
  1555. return &p_hwfn->mcp_info->link_input;
  1556. }
  1557. struct qed_mcp_link_state
  1558. *qed_mcp_get_link_state(struct qed_hwfn *p_hwfn)
  1559. {
  1560. if (!p_hwfn || !p_hwfn->mcp_info)
  1561. return NULL;
  1562. return &p_hwfn->mcp_info->link_output;
  1563. }
  1564. struct qed_mcp_link_capabilities
  1565. *qed_mcp_get_link_capabilities(struct qed_hwfn *p_hwfn)
  1566. {
  1567. if (!p_hwfn || !p_hwfn->mcp_info)
  1568. return NULL;
  1569. return &p_hwfn->mcp_info->link_capabilities;
  1570. }
  1571. int qed_mcp_drain(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
  1572. {
  1573. u32 resp = 0, param = 0;
  1574. int rc;
  1575. rc = qed_mcp_cmd(p_hwfn, p_ptt,
  1576. DRV_MSG_CODE_NIG_DRAIN, 1000, &resp, &param);
  1577. /* Wait for the drain to complete before returning */
  1578. msleep(1020);
  1579. return rc;
  1580. }
  1581. int qed_mcp_get_flash_size(struct qed_hwfn *p_hwfn,
  1582. struct qed_ptt *p_ptt, u32 *p_flash_size)
  1583. {
  1584. u32 flash_size;
  1585. if (IS_VF(p_hwfn->cdev))
  1586. return -EINVAL;
  1587. flash_size = qed_rd(p_hwfn, p_ptt, MCP_REG_NVM_CFG4);
  1588. flash_size = (flash_size & MCP_REG_NVM_CFG4_FLASH_SIZE) >>
  1589. MCP_REG_NVM_CFG4_FLASH_SIZE_SHIFT;
  1590. flash_size = (1 << (flash_size + MCP_BYTES_PER_MBIT_SHIFT));
  1591. *p_flash_size = flash_size;
  1592. return 0;
  1593. }
  1594. static int
  1595. qed_mcp_config_vf_msix_bb(struct qed_hwfn *p_hwfn,
  1596. struct qed_ptt *p_ptt, u8 vf_id, u8 num)
  1597. {
  1598. u32 resp = 0, param = 0, rc_param = 0;
  1599. int rc;
  1600. /* Only Leader can configure MSIX, and need to take CMT into account */
  1601. if (!IS_LEAD_HWFN(p_hwfn))
  1602. return 0;
  1603. num *= p_hwfn->cdev->num_hwfns;
  1604. param |= (vf_id << DRV_MB_PARAM_CFG_VF_MSIX_VF_ID_SHIFT) &
  1605. DRV_MB_PARAM_CFG_VF_MSIX_VF_ID_MASK;
  1606. param |= (num << DRV_MB_PARAM_CFG_VF_MSIX_SB_NUM_SHIFT) &
  1607. DRV_MB_PARAM_CFG_VF_MSIX_SB_NUM_MASK;
  1608. rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_CFG_VF_MSIX, param,
  1609. &resp, &rc_param);
  1610. if (resp != FW_MSG_CODE_DRV_CFG_VF_MSIX_DONE) {
  1611. DP_NOTICE(p_hwfn, "VF[%d]: MFW failed to set MSI-X\n", vf_id);
  1612. rc = -EINVAL;
  1613. } else {
  1614. DP_VERBOSE(p_hwfn, QED_MSG_IOV,
  1615. "Requested 0x%02x MSI-x interrupts from VF 0x%02x\n",
  1616. num, vf_id);
  1617. }
  1618. return rc;
  1619. }
  1620. static int
  1621. qed_mcp_config_vf_msix_ah(struct qed_hwfn *p_hwfn,
  1622. struct qed_ptt *p_ptt, u8 num)
  1623. {
  1624. u32 resp = 0, param = num, rc_param = 0;
  1625. int rc;
  1626. rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_CFG_PF_VFS_MSIX,
  1627. param, &resp, &rc_param);
  1628. if (resp != FW_MSG_CODE_DRV_CFG_PF_VFS_MSIX_DONE) {
  1629. DP_NOTICE(p_hwfn, "MFW failed to set MSI-X for VFs\n");
  1630. rc = -EINVAL;
  1631. } else {
  1632. DP_VERBOSE(p_hwfn, QED_MSG_IOV,
  1633. "Requested 0x%02x MSI-x interrupts for VFs\n", num);
  1634. }
  1635. return rc;
  1636. }
  1637. int qed_mcp_config_vf_msix(struct qed_hwfn *p_hwfn,
  1638. struct qed_ptt *p_ptt, u8 vf_id, u8 num)
  1639. {
  1640. if (QED_IS_BB(p_hwfn->cdev))
  1641. return qed_mcp_config_vf_msix_bb(p_hwfn, p_ptt, vf_id, num);
  1642. else
  1643. return qed_mcp_config_vf_msix_ah(p_hwfn, p_ptt, num);
  1644. }
  1645. int
  1646. qed_mcp_send_drv_version(struct qed_hwfn *p_hwfn,
  1647. struct qed_ptt *p_ptt,
  1648. struct qed_mcp_drv_version *p_ver)
  1649. {
  1650. struct qed_mcp_mb_params mb_params;
  1651. struct drv_version_stc drv_version;
  1652. __be32 val;
  1653. u32 i;
  1654. int rc;
  1655. memset(&drv_version, 0, sizeof(drv_version));
  1656. drv_version.version = p_ver->version;
  1657. for (i = 0; i < (MCP_DRV_VER_STR_SIZE - 4) / sizeof(u32); i++) {
  1658. val = cpu_to_be32(*((u32 *)&p_ver->name[i * sizeof(u32)]));
  1659. *(__be32 *)&drv_version.name[i * sizeof(u32)] = val;
  1660. }
  1661. memset(&mb_params, 0, sizeof(mb_params));
  1662. mb_params.cmd = DRV_MSG_CODE_SET_VERSION;
  1663. mb_params.p_data_src = &drv_version;
  1664. mb_params.data_src_size = sizeof(drv_version);
  1665. rc = qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
  1666. if (rc)
  1667. DP_ERR(p_hwfn, "MCP response failure, aborting\n");
  1668. return rc;
  1669. }
  1670. int qed_mcp_halt(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
  1671. {
  1672. u32 resp = 0, param = 0;
  1673. int rc;
  1674. rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_MCP_HALT, 0, &resp,
  1675. &param);
  1676. if (rc)
  1677. DP_ERR(p_hwfn, "MCP response failure, aborting\n");
  1678. return rc;
  1679. }
  1680. int qed_mcp_resume(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
  1681. {
  1682. u32 value, cpu_mode;
  1683. qed_wr(p_hwfn, p_ptt, MCP_REG_CPU_STATE, 0xffffffff);
  1684. value = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_MODE);
  1685. value &= ~MCP_REG_CPU_MODE_SOFT_HALT;
  1686. qed_wr(p_hwfn, p_ptt, MCP_REG_CPU_MODE, value);
  1687. cpu_mode = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_MODE);
  1688. return (cpu_mode & MCP_REG_CPU_MODE_SOFT_HALT) ? -EAGAIN : 0;
  1689. }
  1690. int qed_mcp_ov_update_current_config(struct qed_hwfn *p_hwfn,
  1691. struct qed_ptt *p_ptt,
  1692. enum qed_ov_client client)
  1693. {
  1694. u32 resp = 0, param = 0;
  1695. u32 drv_mb_param;
  1696. int rc;
  1697. switch (client) {
  1698. case QED_OV_CLIENT_DRV:
  1699. drv_mb_param = DRV_MB_PARAM_OV_CURR_CFG_OS;
  1700. break;
  1701. case QED_OV_CLIENT_USER:
  1702. drv_mb_param = DRV_MB_PARAM_OV_CURR_CFG_OTHER;
  1703. break;
  1704. case QED_OV_CLIENT_VENDOR_SPEC:
  1705. drv_mb_param = DRV_MB_PARAM_OV_CURR_CFG_VENDOR_SPEC;
  1706. break;
  1707. default:
  1708. DP_NOTICE(p_hwfn, "Invalid client type %d\n", client);
  1709. return -EINVAL;
  1710. }
  1711. rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_OV_UPDATE_CURR_CFG,
  1712. drv_mb_param, &resp, &param);
  1713. if (rc)
  1714. DP_ERR(p_hwfn, "MCP response failure, aborting\n");
  1715. return rc;
  1716. }
  1717. int qed_mcp_ov_update_driver_state(struct qed_hwfn *p_hwfn,
  1718. struct qed_ptt *p_ptt,
  1719. enum qed_ov_driver_state drv_state)
  1720. {
  1721. u32 resp = 0, param = 0;
  1722. u32 drv_mb_param;
  1723. int rc;
  1724. switch (drv_state) {
  1725. case QED_OV_DRIVER_STATE_NOT_LOADED:
  1726. drv_mb_param = DRV_MSG_CODE_OV_UPDATE_DRIVER_STATE_NOT_LOADED;
  1727. break;
  1728. case QED_OV_DRIVER_STATE_DISABLED:
  1729. drv_mb_param = DRV_MSG_CODE_OV_UPDATE_DRIVER_STATE_DISABLED;
  1730. break;
  1731. case QED_OV_DRIVER_STATE_ACTIVE:
  1732. drv_mb_param = DRV_MSG_CODE_OV_UPDATE_DRIVER_STATE_ACTIVE;
  1733. break;
  1734. default:
  1735. DP_NOTICE(p_hwfn, "Invalid driver state %d\n", drv_state);
  1736. return -EINVAL;
  1737. }
  1738. rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_OV_UPDATE_DRIVER_STATE,
  1739. drv_mb_param, &resp, &param);
  1740. if (rc)
  1741. DP_ERR(p_hwfn, "Failed to send driver state\n");
  1742. return rc;
  1743. }
  1744. int qed_mcp_ov_update_mtu(struct qed_hwfn *p_hwfn,
  1745. struct qed_ptt *p_ptt, u16 mtu)
  1746. {
  1747. u32 resp = 0, param = 0;
  1748. u32 drv_mb_param;
  1749. int rc;
  1750. drv_mb_param = (u32)mtu << DRV_MB_PARAM_OV_MTU_SIZE_SHIFT;
  1751. rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_OV_UPDATE_MTU,
  1752. drv_mb_param, &resp, &param);
  1753. if (rc)
  1754. DP_ERR(p_hwfn, "Failed to send mtu value, rc = %d\n", rc);
  1755. return rc;
  1756. }
  1757. int qed_mcp_ov_update_mac(struct qed_hwfn *p_hwfn,
  1758. struct qed_ptt *p_ptt, u8 *mac)
  1759. {
  1760. struct qed_mcp_mb_params mb_params;
  1761. u32 mfw_mac[2];
  1762. int rc;
  1763. memset(&mb_params, 0, sizeof(mb_params));
  1764. mb_params.cmd = DRV_MSG_CODE_SET_VMAC;
  1765. mb_params.param = DRV_MSG_CODE_VMAC_TYPE_MAC <<
  1766. DRV_MSG_CODE_VMAC_TYPE_SHIFT;
  1767. mb_params.param |= MCP_PF_ID(p_hwfn);
  1768. /* MCP is BE, and on LE platforms PCI would swap access to SHMEM
  1769. * in 32-bit granularity.
  1770. * So the MAC has to be set in native order [and not byte order],
  1771. * otherwise it would be read incorrectly by MFW after swap.
  1772. */
  1773. mfw_mac[0] = mac[0] << 24 | mac[1] << 16 | mac[2] << 8 | mac[3];
  1774. mfw_mac[1] = mac[4] << 24 | mac[5] << 16;
  1775. mb_params.p_data_src = (u8 *)mfw_mac;
  1776. mb_params.data_src_size = 8;
  1777. rc = qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
  1778. if (rc)
  1779. DP_ERR(p_hwfn, "Failed to send mac address, rc = %d\n", rc);
  1780. /* Store primary MAC for later possible WoL */
  1781. memcpy(p_hwfn->cdev->wol_mac, mac, ETH_ALEN);
  1782. return rc;
  1783. }
  1784. int qed_mcp_ov_update_wol(struct qed_hwfn *p_hwfn,
  1785. struct qed_ptt *p_ptt, enum qed_ov_wol wol)
  1786. {
  1787. u32 resp = 0, param = 0;
  1788. u32 drv_mb_param;
  1789. int rc;
  1790. if (p_hwfn->hw_info.b_wol_support == QED_WOL_SUPPORT_NONE) {
  1791. DP_VERBOSE(p_hwfn, QED_MSG_SP,
  1792. "Can't change WoL configuration when WoL isn't supported\n");
  1793. return -EINVAL;
  1794. }
  1795. switch (wol) {
  1796. case QED_OV_WOL_DEFAULT:
  1797. drv_mb_param = DRV_MB_PARAM_WOL_DEFAULT;
  1798. break;
  1799. case QED_OV_WOL_DISABLED:
  1800. drv_mb_param = DRV_MB_PARAM_WOL_DISABLED;
  1801. break;
  1802. case QED_OV_WOL_ENABLED:
  1803. drv_mb_param = DRV_MB_PARAM_WOL_ENABLED;
  1804. break;
  1805. default:
  1806. DP_ERR(p_hwfn, "Invalid wol state %d\n", wol);
  1807. return -EINVAL;
  1808. }
  1809. rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_OV_UPDATE_WOL,
  1810. drv_mb_param, &resp, &param);
  1811. if (rc)
  1812. DP_ERR(p_hwfn, "Failed to send wol mode, rc = %d\n", rc);
  1813. /* Store the WoL update for a future unload */
  1814. p_hwfn->cdev->wol_config = (u8)wol;
  1815. return rc;
  1816. }
  1817. int qed_mcp_ov_update_eswitch(struct qed_hwfn *p_hwfn,
  1818. struct qed_ptt *p_ptt,
  1819. enum qed_ov_eswitch eswitch)
  1820. {
  1821. u32 resp = 0, param = 0;
  1822. u32 drv_mb_param;
  1823. int rc;
  1824. switch (eswitch) {
  1825. case QED_OV_ESWITCH_NONE:
  1826. drv_mb_param = DRV_MB_PARAM_ESWITCH_MODE_NONE;
  1827. break;
  1828. case QED_OV_ESWITCH_VEB:
  1829. drv_mb_param = DRV_MB_PARAM_ESWITCH_MODE_VEB;
  1830. break;
  1831. case QED_OV_ESWITCH_VEPA:
  1832. drv_mb_param = DRV_MB_PARAM_ESWITCH_MODE_VEPA;
  1833. break;
  1834. default:
  1835. DP_ERR(p_hwfn, "Invalid eswitch mode %d\n", eswitch);
  1836. return -EINVAL;
  1837. }
  1838. rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_OV_UPDATE_ESWITCH_MODE,
  1839. drv_mb_param, &resp, &param);
  1840. if (rc)
  1841. DP_ERR(p_hwfn, "Failed to send eswitch mode, rc = %d\n", rc);
  1842. return rc;
  1843. }
  1844. int qed_mcp_set_led(struct qed_hwfn *p_hwfn,
  1845. struct qed_ptt *p_ptt, enum qed_led_mode mode)
  1846. {
  1847. u32 resp = 0, param = 0, drv_mb_param;
  1848. int rc;
  1849. switch (mode) {
  1850. case QED_LED_MODE_ON:
  1851. drv_mb_param = DRV_MB_PARAM_SET_LED_MODE_ON;
  1852. break;
  1853. case QED_LED_MODE_OFF:
  1854. drv_mb_param = DRV_MB_PARAM_SET_LED_MODE_OFF;
  1855. break;
  1856. case QED_LED_MODE_RESTORE:
  1857. drv_mb_param = DRV_MB_PARAM_SET_LED_MODE_OPER;
  1858. break;
  1859. default:
  1860. DP_NOTICE(p_hwfn, "Invalid LED mode %d\n", mode);
  1861. return -EINVAL;
  1862. }
  1863. rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_SET_LED_MODE,
  1864. drv_mb_param, &resp, &param);
  1865. return rc;
  1866. }
  1867. int qed_mcp_mask_parities(struct qed_hwfn *p_hwfn,
  1868. struct qed_ptt *p_ptt, u32 mask_parities)
  1869. {
  1870. u32 resp = 0, param = 0;
  1871. int rc;
  1872. rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_MASK_PARITIES,
  1873. mask_parities, &resp, &param);
  1874. if (rc) {
  1875. DP_ERR(p_hwfn,
  1876. "MCP response failure for mask parities, aborting\n");
  1877. } else if (resp != FW_MSG_CODE_OK) {
  1878. DP_ERR(p_hwfn,
  1879. "MCP did not acknowledge mask parity request. Old MFW?\n");
  1880. rc = -EINVAL;
  1881. }
  1882. return rc;
  1883. }
  1884. int qed_mcp_nvm_read(struct qed_dev *cdev, u32 addr, u8 *p_buf, u32 len)
  1885. {
  1886. u32 bytes_left = len, offset = 0, bytes_to_copy, read_len = 0;
  1887. struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
  1888. u32 resp = 0, resp_param = 0;
  1889. struct qed_ptt *p_ptt;
  1890. int rc = 0;
  1891. p_ptt = qed_ptt_acquire(p_hwfn);
  1892. if (!p_ptt)
  1893. return -EBUSY;
  1894. while (bytes_left > 0) {
  1895. bytes_to_copy = min_t(u32, bytes_left, MCP_DRV_NVM_BUF_LEN);
  1896. rc = qed_mcp_nvm_rd_cmd(p_hwfn, p_ptt,
  1897. DRV_MSG_CODE_NVM_READ_NVRAM,
  1898. addr + offset +
  1899. (bytes_to_copy <<
  1900. DRV_MB_PARAM_NVM_LEN_OFFSET),
  1901. &resp, &resp_param,
  1902. &read_len,
  1903. (u32 *)(p_buf + offset));
  1904. if (rc || (resp != FW_MSG_CODE_NVM_OK)) {
  1905. DP_NOTICE(cdev, "MCP command rc = %d\n", rc);
  1906. break;
  1907. }
  1908. /* This can be a lengthy process, and it's possible scheduler
  1909. * isn't preemptable. Sleep a bit to prevent CPU hogging.
  1910. */
  1911. if (bytes_left % 0x1000 <
  1912. (bytes_left - read_len) % 0x1000)
  1913. usleep_range(1000, 2000);
  1914. offset += read_len;
  1915. bytes_left -= read_len;
  1916. }
  1917. cdev->mcp_nvm_resp = resp;
  1918. qed_ptt_release(p_hwfn, p_ptt);
  1919. return rc;
  1920. }
  1921. int qed_mcp_nvm_resp(struct qed_dev *cdev, u8 *p_buf)
  1922. {
  1923. struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
  1924. struct qed_ptt *p_ptt;
  1925. p_ptt = qed_ptt_acquire(p_hwfn);
  1926. if (!p_ptt)
  1927. return -EBUSY;
  1928. memcpy(p_buf, &cdev->mcp_nvm_resp, sizeof(cdev->mcp_nvm_resp));
  1929. qed_ptt_release(p_hwfn, p_ptt);
  1930. return 0;
  1931. }
  1932. int qed_mcp_nvm_put_file_begin(struct qed_dev *cdev, u32 addr)
  1933. {
  1934. struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
  1935. struct qed_ptt *p_ptt;
  1936. u32 resp, param;
  1937. int rc;
  1938. p_ptt = qed_ptt_acquire(p_hwfn);
  1939. if (!p_ptt)
  1940. return -EBUSY;
  1941. rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_NVM_PUT_FILE_BEGIN, addr,
  1942. &resp, &param);
  1943. cdev->mcp_nvm_resp = resp;
  1944. qed_ptt_release(p_hwfn, p_ptt);
  1945. return rc;
  1946. }
  1947. int qed_mcp_nvm_write(struct qed_dev *cdev,
  1948. u32 cmd, u32 addr, u8 *p_buf, u32 len)
  1949. {
  1950. u32 buf_idx = 0, buf_size, nvm_cmd, nvm_offset, resp = 0, param;
  1951. struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
  1952. struct qed_ptt *p_ptt;
  1953. int rc = -EINVAL;
  1954. p_ptt = qed_ptt_acquire(p_hwfn);
  1955. if (!p_ptt)
  1956. return -EBUSY;
  1957. switch (cmd) {
  1958. case QED_PUT_FILE_DATA:
  1959. nvm_cmd = DRV_MSG_CODE_NVM_PUT_FILE_DATA;
  1960. break;
  1961. case QED_NVM_WRITE_NVRAM:
  1962. nvm_cmd = DRV_MSG_CODE_NVM_WRITE_NVRAM;
  1963. break;
  1964. default:
  1965. DP_NOTICE(p_hwfn, "Invalid nvm write command 0x%x\n", cmd);
  1966. rc = -EINVAL;
  1967. goto out;
  1968. }
  1969. while (buf_idx < len) {
  1970. buf_size = min_t(u32, (len - buf_idx), MCP_DRV_NVM_BUF_LEN);
  1971. nvm_offset = ((buf_size << DRV_MB_PARAM_NVM_LEN_OFFSET) |
  1972. addr) + buf_idx;
  1973. rc = qed_mcp_nvm_wr_cmd(p_hwfn, p_ptt, nvm_cmd, nvm_offset,
  1974. &resp, &param, buf_size,
  1975. (u32 *)&p_buf[buf_idx]);
  1976. if (rc) {
  1977. DP_NOTICE(cdev, "nvm write failed, rc = %d\n", rc);
  1978. resp = FW_MSG_CODE_ERROR;
  1979. break;
  1980. }
  1981. if (resp != FW_MSG_CODE_OK &&
  1982. resp != FW_MSG_CODE_NVM_OK &&
  1983. resp != FW_MSG_CODE_NVM_PUT_FILE_FINISH_OK) {
  1984. DP_NOTICE(cdev,
  1985. "nvm write failed, resp = 0x%08x\n", resp);
  1986. rc = -EINVAL;
  1987. break;
  1988. }
  1989. /* This can be a lengthy process, and it's possible scheduler
  1990. * isn't pre-emptable. Sleep a bit to prevent CPU hogging.
  1991. */
  1992. if (buf_idx % 0x1000 > (buf_idx + buf_size) % 0x1000)
  1993. usleep_range(1000, 2000);
  1994. buf_idx += buf_size;
  1995. }
  1996. cdev->mcp_nvm_resp = resp;
  1997. out:
  1998. qed_ptt_release(p_hwfn, p_ptt);
  1999. return rc;
  2000. }
  2001. int qed_mcp_bist_register_test(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
  2002. {
  2003. u32 drv_mb_param = 0, rsp, param;
  2004. int rc = 0;
  2005. drv_mb_param = (DRV_MB_PARAM_BIST_REGISTER_TEST <<
  2006. DRV_MB_PARAM_BIST_TEST_INDEX_SHIFT);
  2007. rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_BIST_TEST,
  2008. drv_mb_param, &rsp, &param);
  2009. if (rc)
  2010. return rc;
  2011. if (((rsp & FW_MSG_CODE_MASK) != FW_MSG_CODE_OK) ||
  2012. (param != DRV_MB_PARAM_BIST_RC_PASSED))
  2013. rc = -EAGAIN;
  2014. return rc;
  2015. }
  2016. int qed_mcp_bist_clock_test(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
  2017. {
  2018. u32 drv_mb_param, rsp, param;
  2019. int rc = 0;
  2020. drv_mb_param = (DRV_MB_PARAM_BIST_CLOCK_TEST <<
  2021. DRV_MB_PARAM_BIST_TEST_INDEX_SHIFT);
  2022. rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_BIST_TEST,
  2023. drv_mb_param, &rsp, &param);
  2024. if (rc)
  2025. return rc;
  2026. if (((rsp & FW_MSG_CODE_MASK) != FW_MSG_CODE_OK) ||
  2027. (param != DRV_MB_PARAM_BIST_RC_PASSED))
  2028. rc = -EAGAIN;
  2029. return rc;
  2030. }
  2031. int qed_mcp_bist_nvm_get_num_images(struct qed_hwfn *p_hwfn,
  2032. struct qed_ptt *p_ptt,
  2033. u32 *num_images)
  2034. {
  2035. u32 drv_mb_param = 0, rsp;
  2036. int rc = 0;
  2037. drv_mb_param = (DRV_MB_PARAM_BIST_NVM_TEST_NUM_IMAGES <<
  2038. DRV_MB_PARAM_BIST_TEST_INDEX_SHIFT);
  2039. rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_BIST_TEST,
  2040. drv_mb_param, &rsp, num_images);
  2041. if (rc)
  2042. return rc;
  2043. if (((rsp & FW_MSG_CODE_MASK) != FW_MSG_CODE_OK))
  2044. rc = -EINVAL;
  2045. return rc;
  2046. }
  2047. int qed_mcp_bist_nvm_get_image_att(struct qed_hwfn *p_hwfn,
  2048. struct qed_ptt *p_ptt,
  2049. struct bist_nvm_image_att *p_image_att,
  2050. u32 image_index)
  2051. {
  2052. u32 buf_size = 0, param, resp = 0, resp_param = 0;
  2053. int rc;
  2054. param = DRV_MB_PARAM_BIST_NVM_TEST_IMAGE_BY_INDEX <<
  2055. DRV_MB_PARAM_BIST_TEST_INDEX_SHIFT;
  2056. param |= image_index << DRV_MB_PARAM_BIST_TEST_IMAGE_INDEX_SHIFT;
  2057. rc = qed_mcp_nvm_rd_cmd(p_hwfn, p_ptt,
  2058. DRV_MSG_CODE_BIST_TEST, param,
  2059. &resp, &resp_param,
  2060. &buf_size,
  2061. (u32 *)p_image_att);
  2062. if (rc)
  2063. return rc;
  2064. if (((resp & FW_MSG_CODE_MASK) != FW_MSG_CODE_OK) ||
  2065. (p_image_att->return_code != 1))
  2066. rc = -EINVAL;
  2067. return rc;
  2068. }
  2069. int qed_mcp_nvm_info_populate(struct qed_hwfn *p_hwfn)
  2070. {
  2071. struct qed_nvm_image_info *nvm_info = &p_hwfn->nvm_info;
  2072. struct qed_ptt *p_ptt;
  2073. int rc;
  2074. u32 i;
  2075. p_ptt = qed_ptt_acquire(p_hwfn);
  2076. if (!p_ptt) {
  2077. DP_ERR(p_hwfn, "failed to acquire ptt\n");
  2078. return -EBUSY;
  2079. }
  2080. /* Acquire from MFW the amount of available images */
  2081. nvm_info->num_images = 0;
  2082. rc = qed_mcp_bist_nvm_get_num_images(p_hwfn,
  2083. p_ptt, &nvm_info->num_images);
  2084. if (rc == -EOPNOTSUPP) {
  2085. DP_INFO(p_hwfn, "DRV_MSG_CODE_BIST_TEST is not supported\n");
  2086. goto out;
  2087. } else if (rc || !nvm_info->num_images) {
  2088. DP_ERR(p_hwfn, "Failed getting number of images\n");
  2089. goto err0;
  2090. }
  2091. nvm_info->image_att = kmalloc(nvm_info->num_images *
  2092. sizeof(struct bist_nvm_image_att),
  2093. GFP_KERNEL);
  2094. if (!nvm_info->image_att) {
  2095. rc = -ENOMEM;
  2096. goto err0;
  2097. }
  2098. /* Iterate over images and get their attributes */
  2099. for (i = 0; i < nvm_info->num_images; i++) {
  2100. rc = qed_mcp_bist_nvm_get_image_att(p_hwfn, p_ptt,
  2101. &nvm_info->image_att[i], i);
  2102. if (rc) {
  2103. DP_ERR(p_hwfn,
  2104. "Failed getting image index %d attributes\n", i);
  2105. goto err1;
  2106. }
  2107. DP_VERBOSE(p_hwfn, QED_MSG_SP, "image index %d, size %x\n", i,
  2108. nvm_info->image_att[i].len);
  2109. }
  2110. out:
  2111. qed_ptt_release(p_hwfn, p_ptt);
  2112. return 0;
  2113. err1:
  2114. kfree(nvm_info->image_att);
  2115. err0:
  2116. qed_ptt_release(p_hwfn, p_ptt);
  2117. return rc;
  2118. }
  2119. static int
  2120. qed_mcp_get_nvm_image_att(struct qed_hwfn *p_hwfn,
  2121. struct qed_ptt *p_ptt,
  2122. enum qed_nvm_images image_id,
  2123. struct qed_nvm_image_att *p_image_att)
  2124. {
  2125. enum nvm_image_type type;
  2126. u32 i;
  2127. /* Translate image_id into MFW definitions */
  2128. switch (image_id) {
  2129. case QED_NVM_IMAGE_ISCSI_CFG:
  2130. type = NVM_TYPE_ISCSI_CFG;
  2131. break;
  2132. case QED_NVM_IMAGE_FCOE_CFG:
  2133. type = NVM_TYPE_FCOE_CFG;
  2134. break;
  2135. default:
  2136. DP_NOTICE(p_hwfn, "Unknown request of image_id %08x\n",
  2137. image_id);
  2138. return -EINVAL;
  2139. }
  2140. for (i = 0; i < p_hwfn->nvm_info.num_images; i++)
  2141. if (type == p_hwfn->nvm_info.image_att[i].image_type)
  2142. break;
  2143. if (i == p_hwfn->nvm_info.num_images) {
  2144. DP_VERBOSE(p_hwfn, QED_MSG_STORAGE,
  2145. "Failed to find nvram image of type %08x\n",
  2146. image_id);
  2147. return -ENOENT;
  2148. }
  2149. p_image_att->start_addr = p_hwfn->nvm_info.image_att[i].nvm_start_addr;
  2150. p_image_att->length = p_hwfn->nvm_info.image_att[i].len;
  2151. return 0;
  2152. }
  2153. int qed_mcp_get_nvm_image(struct qed_hwfn *p_hwfn,
  2154. struct qed_ptt *p_ptt,
  2155. enum qed_nvm_images image_id,
  2156. u8 *p_buffer, u32 buffer_len)
  2157. {
  2158. struct qed_nvm_image_att image_att;
  2159. int rc;
  2160. memset(p_buffer, 0, buffer_len);
  2161. rc = qed_mcp_get_nvm_image_att(p_hwfn, p_ptt, image_id, &image_att);
  2162. if (rc)
  2163. return rc;
  2164. /* Validate sizes - both the image's and the supplied buffer's */
  2165. if (image_att.length <= 4) {
  2166. DP_VERBOSE(p_hwfn, QED_MSG_STORAGE,
  2167. "Image [%d] is too small - only %d bytes\n",
  2168. image_id, image_att.length);
  2169. return -EINVAL;
  2170. }
  2171. /* Each NVM image is suffixed by CRC; Upper-layer has no need for it */
  2172. image_att.length -= 4;
  2173. if (image_att.length > buffer_len) {
  2174. DP_VERBOSE(p_hwfn,
  2175. QED_MSG_STORAGE,
  2176. "Image [%d] is too big - %08x bytes where only %08x are available\n",
  2177. image_id, image_att.length, buffer_len);
  2178. return -ENOMEM;
  2179. }
  2180. return qed_mcp_nvm_read(p_hwfn->cdev, image_att.start_addr,
  2181. p_buffer, image_att.length);
  2182. }
  2183. static enum resource_id_enum qed_mcp_get_mfw_res_id(enum qed_resources res_id)
  2184. {
  2185. enum resource_id_enum mfw_res_id = RESOURCE_NUM_INVALID;
  2186. switch (res_id) {
  2187. case QED_SB:
  2188. mfw_res_id = RESOURCE_NUM_SB_E;
  2189. break;
  2190. case QED_L2_QUEUE:
  2191. mfw_res_id = RESOURCE_NUM_L2_QUEUE_E;
  2192. break;
  2193. case QED_VPORT:
  2194. mfw_res_id = RESOURCE_NUM_VPORT_E;
  2195. break;
  2196. case QED_RSS_ENG:
  2197. mfw_res_id = RESOURCE_NUM_RSS_ENGINES_E;
  2198. break;
  2199. case QED_PQ:
  2200. mfw_res_id = RESOURCE_NUM_PQ_E;
  2201. break;
  2202. case QED_RL:
  2203. mfw_res_id = RESOURCE_NUM_RL_E;
  2204. break;
  2205. case QED_MAC:
  2206. case QED_VLAN:
  2207. /* Each VFC resource can accommodate both a MAC and a VLAN */
  2208. mfw_res_id = RESOURCE_VFC_FILTER_E;
  2209. break;
  2210. case QED_ILT:
  2211. mfw_res_id = RESOURCE_ILT_E;
  2212. break;
  2213. case QED_LL2_QUEUE:
  2214. mfw_res_id = RESOURCE_LL2_QUEUE_E;
  2215. break;
  2216. case QED_RDMA_CNQ_RAM:
  2217. case QED_CMDQS_CQS:
  2218. /* CNQ/CMDQS are the same resource */
  2219. mfw_res_id = RESOURCE_CQS_E;
  2220. break;
  2221. case QED_RDMA_STATS_QUEUE:
  2222. mfw_res_id = RESOURCE_RDMA_STATS_QUEUE_E;
  2223. break;
  2224. case QED_BDQ:
  2225. mfw_res_id = RESOURCE_BDQ_E;
  2226. break;
  2227. default:
  2228. break;
  2229. }
  2230. return mfw_res_id;
  2231. }
  2232. #define QED_RESC_ALLOC_VERSION_MAJOR 2
  2233. #define QED_RESC_ALLOC_VERSION_MINOR 0
  2234. #define QED_RESC_ALLOC_VERSION \
  2235. ((QED_RESC_ALLOC_VERSION_MAJOR << \
  2236. DRV_MB_PARAM_RESOURCE_ALLOC_VERSION_MAJOR_SHIFT) | \
  2237. (QED_RESC_ALLOC_VERSION_MINOR << \
  2238. DRV_MB_PARAM_RESOURCE_ALLOC_VERSION_MINOR_SHIFT))
  2239. struct qed_resc_alloc_in_params {
  2240. u32 cmd;
  2241. enum qed_resources res_id;
  2242. u32 resc_max_val;
  2243. };
  2244. struct qed_resc_alloc_out_params {
  2245. u32 mcp_resp;
  2246. u32 mcp_param;
  2247. u32 resc_num;
  2248. u32 resc_start;
  2249. u32 vf_resc_num;
  2250. u32 vf_resc_start;
  2251. u32 flags;
  2252. };
  2253. static int
  2254. qed_mcp_resc_allocation_msg(struct qed_hwfn *p_hwfn,
  2255. struct qed_ptt *p_ptt,
  2256. struct qed_resc_alloc_in_params *p_in_params,
  2257. struct qed_resc_alloc_out_params *p_out_params)
  2258. {
  2259. struct qed_mcp_mb_params mb_params;
  2260. struct resource_info mfw_resc_info;
  2261. int rc;
  2262. memset(&mfw_resc_info, 0, sizeof(mfw_resc_info));
  2263. mfw_resc_info.res_id = qed_mcp_get_mfw_res_id(p_in_params->res_id);
  2264. if (mfw_resc_info.res_id == RESOURCE_NUM_INVALID) {
  2265. DP_ERR(p_hwfn,
  2266. "Failed to match resource %d [%s] with the MFW resources\n",
  2267. p_in_params->res_id,
  2268. qed_hw_get_resc_name(p_in_params->res_id));
  2269. return -EINVAL;
  2270. }
  2271. switch (p_in_params->cmd) {
  2272. case DRV_MSG_SET_RESOURCE_VALUE_MSG:
  2273. mfw_resc_info.size = p_in_params->resc_max_val;
  2274. /* Fallthrough */
  2275. case DRV_MSG_GET_RESOURCE_ALLOC_MSG:
  2276. break;
  2277. default:
  2278. DP_ERR(p_hwfn, "Unexpected resource alloc command [0x%08x]\n",
  2279. p_in_params->cmd);
  2280. return -EINVAL;
  2281. }
  2282. memset(&mb_params, 0, sizeof(mb_params));
  2283. mb_params.cmd = p_in_params->cmd;
  2284. mb_params.param = QED_RESC_ALLOC_VERSION;
  2285. mb_params.p_data_src = &mfw_resc_info;
  2286. mb_params.data_src_size = sizeof(mfw_resc_info);
  2287. mb_params.p_data_dst = mb_params.p_data_src;
  2288. mb_params.data_dst_size = mb_params.data_src_size;
  2289. DP_VERBOSE(p_hwfn,
  2290. QED_MSG_SP,
  2291. "Resource message request: cmd 0x%08x, res_id %d [%s], hsi_version %d.%d, val 0x%x\n",
  2292. p_in_params->cmd,
  2293. p_in_params->res_id,
  2294. qed_hw_get_resc_name(p_in_params->res_id),
  2295. QED_MFW_GET_FIELD(mb_params.param,
  2296. DRV_MB_PARAM_RESOURCE_ALLOC_VERSION_MAJOR),
  2297. QED_MFW_GET_FIELD(mb_params.param,
  2298. DRV_MB_PARAM_RESOURCE_ALLOC_VERSION_MINOR),
  2299. p_in_params->resc_max_val);
  2300. rc = qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
  2301. if (rc)
  2302. return rc;
  2303. p_out_params->mcp_resp = mb_params.mcp_resp;
  2304. p_out_params->mcp_param = mb_params.mcp_param;
  2305. p_out_params->resc_num = mfw_resc_info.size;
  2306. p_out_params->resc_start = mfw_resc_info.offset;
  2307. p_out_params->vf_resc_num = mfw_resc_info.vf_size;
  2308. p_out_params->vf_resc_start = mfw_resc_info.vf_offset;
  2309. p_out_params->flags = mfw_resc_info.flags;
  2310. DP_VERBOSE(p_hwfn,
  2311. QED_MSG_SP,
  2312. "Resource message response: mfw_hsi_version %d.%d, num 0x%x, start 0x%x, vf_num 0x%x, vf_start 0x%x, flags 0x%08x\n",
  2313. QED_MFW_GET_FIELD(p_out_params->mcp_param,
  2314. FW_MB_PARAM_RESOURCE_ALLOC_VERSION_MAJOR),
  2315. QED_MFW_GET_FIELD(p_out_params->mcp_param,
  2316. FW_MB_PARAM_RESOURCE_ALLOC_VERSION_MINOR),
  2317. p_out_params->resc_num,
  2318. p_out_params->resc_start,
  2319. p_out_params->vf_resc_num,
  2320. p_out_params->vf_resc_start, p_out_params->flags);
  2321. return 0;
  2322. }
  2323. int
  2324. qed_mcp_set_resc_max_val(struct qed_hwfn *p_hwfn,
  2325. struct qed_ptt *p_ptt,
  2326. enum qed_resources res_id,
  2327. u32 resc_max_val, u32 *p_mcp_resp)
  2328. {
  2329. struct qed_resc_alloc_out_params out_params;
  2330. struct qed_resc_alloc_in_params in_params;
  2331. int rc;
  2332. memset(&in_params, 0, sizeof(in_params));
  2333. in_params.cmd = DRV_MSG_SET_RESOURCE_VALUE_MSG;
  2334. in_params.res_id = res_id;
  2335. in_params.resc_max_val = resc_max_val;
  2336. memset(&out_params, 0, sizeof(out_params));
  2337. rc = qed_mcp_resc_allocation_msg(p_hwfn, p_ptt, &in_params,
  2338. &out_params);
  2339. if (rc)
  2340. return rc;
  2341. *p_mcp_resp = out_params.mcp_resp;
  2342. return 0;
  2343. }
  2344. int
  2345. qed_mcp_get_resc_info(struct qed_hwfn *p_hwfn,
  2346. struct qed_ptt *p_ptt,
  2347. enum qed_resources res_id,
  2348. u32 *p_mcp_resp, u32 *p_resc_num, u32 *p_resc_start)
  2349. {
  2350. struct qed_resc_alloc_out_params out_params;
  2351. struct qed_resc_alloc_in_params in_params;
  2352. int rc;
  2353. memset(&in_params, 0, sizeof(in_params));
  2354. in_params.cmd = DRV_MSG_GET_RESOURCE_ALLOC_MSG;
  2355. in_params.res_id = res_id;
  2356. memset(&out_params, 0, sizeof(out_params));
  2357. rc = qed_mcp_resc_allocation_msg(p_hwfn, p_ptt, &in_params,
  2358. &out_params);
  2359. if (rc)
  2360. return rc;
  2361. *p_mcp_resp = out_params.mcp_resp;
  2362. if (*p_mcp_resp == FW_MSG_CODE_RESOURCE_ALLOC_OK) {
  2363. *p_resc_num = out_params.resc_num;
  2364. *p_resc_start = out_params.resc_start;
  2365. }
  2366. return 0;
  2367. }
  2368. int qed_mcp_initiate_pf_flr(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
  2369. {
  2370. u32 mcp_resp, mcp_param;
  2371. return qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_INITIATE_PF_FLR, 0,
  2372. &mcp_resp, &mcp_param);
  2373. }
  2374. static int qed_mcp_resource_cmd(struct qed_hwfn *p_hwfn,
  2375. struct qed_ptt *p_ptt,
  2376. u32 param, u32 *p_mcp_resp, u32 *p_mcp_param)
  2377. {
  2378. int rc;
  2379. rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_RESOURCE_CMD, param,
  2380. p_mcp_resp, p_mcp_param);
  2381. if (rc)
  2382. return rc;
  2383. if (*p_mcp_resp == FW_MSG_CODE_UNSUPPORTED) {
  2384. DP_INFO(p_hwfn,
  2385. "The resource command is unsupported by the MFW\n");
  2386. return -EINVAL;
  2387. }
  2388. if (*p_mcp_param == RESOURCE_OPCODE_UNKNOWN_CMD) {
  2389. u8 opcode = QED_MFW_GET_FIELD(param, RESOURCE_CMD_REQ_OPCODE);
  2390. DP_NOTICE(p_hwfn,
  2391. "The resource command is unknown to the MFW [param 0x%08x, opcode %d]\n",
  2392. param, opcode);
  2393. return -EINVAL;
  2394. }
  2395. return rc;
  2396. }
  2397. int
  2398. __qed_mcp_resc_lock(struct qed_hwfn *p_hwfn,
  2399. struct qed_ptt *p_ptt,
  2400. struct qed_resc_lock_params *p_params)
  2401. {
  2402. u32 param = 0, mcp_resp, mcp_param;
  2403. u8 opcode;
  2404. int rc;
  2405. switch (p_params->timeout) {
  2406. case QED_MCP_RESC_LOCK_TO_DEFAULT:
  2407. opcode = RESOURCE_OPCODE_REQ;
  2408. p_params->timeout = 0;
  2409. break;
  2410. case QED_MCP_RESC_LOCK_TO_NONE:
  2411. opcode = RESOURCE_OPCODE_REQ_WO_AGING;
  2412. p_params->timeout = 0;
  2413. break;
  2414. default:
  2415. opcode = RESOURCE_OPCODE_REQ_W_AGING;
  2416. break;
  2417. }
  2418. QED_MFW_SET_FIELD(param, RESOURCE_CMD_REQ_RESC, p_params->resource);
  2419. QED_MFW_SET_FIELD(param, RESOURCE_CMD_REQ_OPCODE, opcode);
  2420. QED_MFW_SET_FIELD(param, RESOURCE_CMD_REQ_AGE, p_params->timeout);
  2421. DP_VERBOSE(p_hwfn,
  2422. QED_MSG_SP,
  2423. "Resource lock request: param 0x%08x [age %d, opcode %d, resource %d]\n",
  2424. param, p_params->timeout, opcode, p_params->resource);
  2425. /* Attempt to acquire the resource */
  2426. rc = qed_mcp_resource_cmd(p_hwfn, p_ptt, param, &mcp_resp, &mcp_param);
  2427. if (rc)
  2428. return rc;
  2429. /* Analyze the response */
  2430. p_params->owner = QED_MFW_GET_FIELD(mcp_param, RESOURCE_CMD_RSP_OWNER);
  2431. opcode = QED_MFW_GET_FIELD(mcp_param, RESOURCE_CMD_RSP_OPCODE);
  2432. DP_VERBOSE(p_hwfn,
  2433. QED_MSG_SP,
  2434. "Resource lock response: mcp_param 0x%08x [opcode %d, owner %d]\n",
  2435. mcp_param, opcode, p_params->owner);
  2436. switch (opcode) {
  2437. case RESOURCE_OPCODE_GNT:
  2438. p_params->b_granted = true;
  2439. break;
  2440. case RESOURCE_OPCODE_BUSY:
  2441. p_params->b_granted = false;
  2442. break;
  2443. default:
  2444. DP_NOTICE(p_hwfn,
  2445. "Unexpected opcode in resource lock response [mcp_param 0x%08x, opcode %d]\n",
  2446. mcp_param, opcode);
  2447. return -EINVAL;
  2448. }
  2449. return 0;
  2450. }
  2451. int
  2452. qed_mcp_resc_lock(struct qed_hwfn *p_hwfn,
  2453. struct qed_ptt *p_ptt, struct qed_resc_lock_params *p_params)
  2454. {
  2455. u32 retry_cnt = 0;
  2456. int rc;
  2457. do {
  2458. /* No need for an interval before the first iteration */
  2459. if (retry_cnt) {
  2460. if (p_params->sleep_b4_retry) {
  2461. u16 retry_interval_in_ms =
  2462. DIV_ROUND_UP(p_params->retry_interval,
  2463. 1000);
  2464. msleep(retry_interval_in_ms);
  2465. } else {
  2466. udelay(p_params->retry_interval);
  2467. }
  2468. }
  2469. rc = __qed_mcp_resc_lock(p_hwfn, p_ptt, p_params);
  2470. if (rc)
  2471. return rc;
  2472. if (p_params->b_granted)
  2473. break;
  2474. } while (retry_cnt++ < p_params->retry_num);
  2475. return 0;
  2476. }
  2477. int
  2478. qed_mcp_resc_unlock(struct qed_hwfn *p_hwfn,
  2479. struct qed_ptt *p_ptt,
  2480. struct qed_resc_unlock_params *p_params)
  2481. {
  2482. u32 param = 0, mcp_resp, mcp_param;
  2483. u8 opcode;
  2484. int rc;
  2485. opcode = p_params->b_force ? RESOURCE_OPCODE_FORCE_RELEASE
  2486. : RESOURCE_OPCODE_RELEASE;
  2487. QED_MFW_SET_FIELD(param, RESOURCE_CMD_REQ_RESC, p_params->resource);
  2488. QED_MFW_SET_FIELD(param, RESOURCE_CMD_REQ_OPCODE, opcode);
  2489. DP_VERBOSE(p_hwfn, QED_MSG_SP,
  2490. "Resource unlock request: param 0x%08x [opcode %d, resource %d]\n",
  2491. param, opcode, p_params->resource);
  2492. /* Attempt to release the resource */
  2493. rc = qed_mcp_resource_cmd(p_hwfn, p_ptt, param, &mcp_resp, &mcp_param);
  2494. if (rc)
  2495. return rc;
  2496. /* Analyze the response */
  2497. opcode = QED_MFW_GET_FIELD(mcp_param, RESOURCE_CMD_RSP_OPCODE);
  2498. DP_VERBOSE(p_hwfn, QED_MSG_SP,
  2499. "Resource unlock response: mcp_param 0x%08x [opcode %d]\n",
  2500. mcp_param, opcode);
  2501. switch (opcode) {
  2502. case RESOURCE_OPCODE_RELEASED_PREVIOUS:
  2503. DP_INFO(p_hwfn,
  2504. "Resource unlock request for an already released resource [%d]\n",
  2505. p_params->resource);
  2506. /* Fallthrough */
  2507. case RESOURCE_OPCODE_RELEASED:
  2508. p_params->b_released = true;
  2509. break;
  2510. case RESOURCE_OPCODE_WRONG_OWNER:
  2511. p_params->b_released = false;
  2512. break;
  2513. default:
  2514. DP_NOTICE(p_hwfn,
  2515. "Unexpected opcode in resource unlock response [mcp_param 0x%08x, opcode %d]\n",
  2516. mcp_param, opcode);
  2517. return -EINVAL;
  2518. }
  2519. return 0;
  2520. }
  2521. void qed_mcp_resc_lock_default_init(struct qed_resc_lock_params *p_lock,
  2522. struct qed_resc_unlock_params *p_unlock,
  2523. enum qed_resc_lock
  2524. resource, bool b_is_permanent)
  2525. {
  2526. if (p_lock) {
  2527. memset(p_lock, 0, sizeof(*p_lock));
  2528. /* Permanent resources don't require aging, and there's no
  2529. * point in trying to acquire them more than once since it's
  2530. * unexpected another entity would release them.
  2531. */
  2532. if (b_is_permanent) {
  2533. p_lock->timeout = QED_MCP_RESC_LOCK_TO_NONE;
  2534. } else {
  2535. p_lock->retry_num = QED_MCP_RESC_LOCK_RETRY_CNT_DFLT;
  2536. p_lock->retry_interval =
  2537. QED_MCP_RESC_LOCK_RETRY_VAL_DFLT;
  2538. p_lock->sleep_b4_retry = true;
  2539. }
  2540. p_lock->resource = resource;
  2541. }
  2542. if (p_unlock) {
  2543. memset(p_unlock, 0, sizeof(*p_unlock));
  2544. p_unlock->resource = resource;
  2545. }
  2546. }
  2547. int qed_mcp_get_capabilities(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
  2548. {
  2549. u32 mcp_resp;
  2550. int rc;
  2551. rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_GET_MFW_FEATURE_SUPPORT,
  2552. 0, &mcp_resp, &p_hwfn->mcp_info->capabilities);
  2553. if (!rc)
  2554. DP_VERBOSE(p_hwfn, (QED_MSG_SP | NETIF_MSG_PROBE),
  2555. "MFW supported features: %08x\n",
  2556. p_hwfn->mcp_info->capabilities);
  2557. return rc;
  2558. }
  2559. int qed_mcp_set_capabilities(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
  2560. {
  2561. u32 mcp_resp, mcp_param, features;
  2562. features = DRV_MB_PARAM_FEATURE_SUPPORT_PORT_EEE;
  2563. return qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_FEATURE_SUPPORT,
  2564. features, &mcp_resp, &mcp_param);
  2565. }