1 /* QLogic qed NIC Driver
2 * Copyright (c) 2015-2017 QLogic Corporation
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:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
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.
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
33 #include <linux/types.h>
34 #include <asm/byteorder.h>
35 #include <asm/param.h>
36 #include <linux/delay.h>
37 #include <linux/dma-mapping.h>
38 #include <linux/interrupt.h>
39 #include <linux/kernel.h>
40 #include <linux/log2.h>
41 #include <linux/module.h>
42 #include <linux/pci.h>
43 #include <linux/slab.h>
44 #include <linux/stddef.h>
45 #include <linux/string.h>
46 #include <linux/workqueue.h>
47 #include <linux/errno.h>
48 #include <linux/list.h>
49 #include <linux/spinlock.h>
50 #define __PREVENT_DUMP_MEM_ARR__
51 #define __PREVENT_PXP_GLOBAL_WIN__
54 #include "qed_dev_api.h"
61 #include "qed_reg_addr.h"
63 #include "qed_sriov.h"
64 #include <linux/qed/qed_fcoe_if.h>
66 struct qed_fcoe_conn {
67 struct list_head list_entry;
75 dma_addr_t sq_pbl_addr;
76 dma_addr_t sq_curr_page_addr;
77 dma_addr_t sq_next_page_addr;
78 dma_addr_t xferq_pbl_addr;
79 void *xferq_pbl_addr_virt_addr;
80 dma_addr_t xferq_addr[4];
81 void *xferq_addr_virt_addr[4];
82 dma_addr_t confq_pbl_addr;
83 void *confq_pbl_addr_virt_addr;
84 dma_addr_t confq_addr[2];
85 void *confq_addr_virt_addr[2];
87 dma_addr_t terminate_params;
96 u16 tx_max_fc_pay_len;
97 u16 e_d_tov_timer_val;
98 u16 rec_tov_timer_val;
99 u16 rx_max_fc_pay_len;
103 struct fc_addr_nw s_id;
105 struct fc_addr_nw d_id;
111 qed_sp_fcoe_func_start(struct qed_hwfn *p_hwfn,
112 enum spq_mode comp_mode,
113 struct qed_spq_comp_cb *p_comp_addr)
115 struct qed_fcoe_pf_params *fcoe_pf_params = NULL;
116 struct fcoe_init_ramrod_params *p_ramrod = NULL;
117 struct fcoe_init_func_ramrod_data *p_data;
118 struct e4_fcoe_conn_context *p_cxt = NULL;
119 struct qed_spq_entry *p_ent = NULL;
120 struct qed_sp_init_data init_data;
121 struct qed_cxt_info cxt_info;
128 memset(&init_data, 0, sizeof(init_data));
129 init_data.cid = qed_spq_get_cid(p_hwfn);
130 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
131 init_data.comp_mode = comp_mode;
132 init_data.p_comp_data = p_comp_addr;
134 rc = qed_sp_init_request(p_hwfn, &p_ent,
135 FCOE_RAMROD_CMD_ID_INIT_FUNC,
136 PROTOCOLID_FCOE, &init_data);
140 p_ramrod = &p_ent->ramrod.fcoe_init;
141 p_data = &p_ramrod->init_ramrod_data;
142 fcoe_pf_params = &p_hwfn->pf_params.fcoe_pf_params;
145 if (fcoe_pf_params->num_cqs > p_hwfn->hw_info.feat_num[QED_FCOE_CQ]) {
147 "Cannot satisfy CQ amount. CQs requested %d, CQs available %d. Aborting function start\n",
148 fcoe_pf_params->num_cqs,
149 p_hwfn->hw_info.feat_num[QED_FCOE_CQ]);
153 p_data->mtu = cpu_to_le16(fcoe_pf_params->mtu);
154 tmp = cpu_to_le16(fcoe_pf_params->sq_num_pbl_pages);
155 p_data->sq_num_pages_in_pbl = tmp;
157 rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_FCOE, &dummy_cid);
161 cxt_info.iid = dummy_cid;
162 rc = qed_cxt_get_cid_info(p_hwfn, &cxt_info);
164 DP_NOTICE(p_hwfn, "Cannot find context info for dummy cid=%d\n",
168 p_cxt = cxt_info.p_cxt;
169 SET_FIELD(p_cxt->tstorm_ag_context.flags3,
170 E4_TSTORM_FCOE_CONN_AG_CTX_DUMMY_TIMER_CF_EN, 1);
172 fcoe_pf_params->dummy_icid = (u16)dummy_cid;
174 tmp = cpu_to_le16(fcoe_pf_params->num_tasks);
175 p_data->func_params.num_tasks = tmp;
176 p_data->func_params.log_page_size = fcoe_pf_params->log_page_size;
177 p_data->func_params.debug_mode = fcoe_pf_params->debug_mode;
179 DMA_REGPAIR_LE(p_data->q_params.glbl_q_params_addr,
180 fcoe_pf_params->glbl_q_params_addr);
182 tmp = cpu_to_le16(fcoe_pf_params->cq_num_entries);
183 p_data->q_params.cq_num_entries = tmp;
185 tmp = cpu_to_le16(fcoe_pf_params->cmdq_num_entries);
186 p_data->q_params.cmdq_num_entries = tmp;
188 tmp = fcoe_pf_params->num_cqs;
189 p_data->q_params.num_queues = (u8)tmp;
191 tmp = (u16)p_hwfn->hw_info.resc_start[QED_CMDQS_CQS];
192 p_data->q_params.queue_relative_offset = (u8)tmp;
194 for (i = 0; i < fcoe_pf_params->num_cqs; i++) {
197 igu_sb_id = qed_get_igu_sb_id(p_hwfn, i);
198 tmp = cpu_to_le16(igu_sb_id);
199 p_data->q_params.cq_cmdq_sb_num_arr[i] = tmp;
202 p_data->q_params.cq_sb_pi = fcoe_pf_params->gl_rq_pi;
203 p_data->q_params.cmdq_sb_pi = fcoe_pf_params->gl_cmd_pi;
205 p_data->q_params.bdq_resource_id = (u8)RESC_START(p_hwfn, QED_BDQ);
207 DMA_REGPAIR_LE(p_data->q_params.bdq_pbl_base_address[BDQ_ID_RQ],
208 fcoe_pf_params->bdq_pbl_base_addr[BDQ_ID_RQ]);
209 p_data->q_params.bdq_pbl_num_entries[BDQ_ID_RQ] =
210 fcoe_pf_params->bdq_pbl_num_entries[BDQ_ID_RQ];
211 tmp = fcoe_pf_params->bdq_xoff_threshold[BDQ_ID_RQ];
212 p_data->q_params.bdq_xoff_threshold[BDQ_ID_RQ] = cpu_to_le16(tmp);
213 tmp = fcoe_pf_params->bdq_xon_threshold[BDQ_ID_RQ];
214 p_data->q_params.bdq_xon_threshold[BDQ_ID_RQ] = cpu_to_le16(tmp);
216 DMA_REGPAIR_LE(p_data->q_params.bdq_pbl_base_address[BDQ_ID_IMM_DATA],
217 fcoe_pf_params->bdq_pbl_base_addr[BDQ_ID_IMM_DATA]);
218 p_data->q_params.bdq_pbl_num_entries[BDQ_ID_IMM_DATA] =
219 fcoe_pf_params->bdq_pbl_num_entries[BDQ_ID_IMM_DATA];
220 tmp = fcoe_pf_params->bdq_xoff_threshold[BDQ_ID_IMM_DATA];
221 p_data->q_params.bdq_xoff_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(tmp);
222 tmp = fcoe_pf_params->bdq_xon_threshold[BDQ_ID_IMM_DATA];
223 p_data->q_params.bdq_xon_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(tmp);
224 tmp = fcoe_pf_params->rq_buffer_size;
225 p_data->q_params.rq_buffer_size = cpu_to_le16(tmp);
227 if (fcoe_pf_params->is_target) {
228 SET_FIELD(p_data->q_params.q_validity,
229 SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
230 if (p_data->q_params.bdq_pbl_num_entries[BDQ_ID_IMM_DATA])
231 SET_FIELD(p_data->q_params.q_validity,
232 SCSI_INIT_FUNC_QUEUES_IMM_DATA_VALID, 1);
233 SET_FIELD(p_data->q_params.q_validity,
234 SCSI_INIT_FUNC_QUEUES_CMD_VALID, 1);
236 SET_FIELD(p_data->q_params.q_validity,
237 SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
240 rc = qed_spq_post(p_hwfn, p_ent, NULL);
246 qed_sp_fcoe_conn_offload(struct qed_hwfn *p_hwfn,
247 struct qed_fcoe_conn *p_conn,
248 enum spq_mode comp_mode,
249 struct qed_spq_comp_cb *p_comp_addr)
251 struct fcoe_conn_offload_ramrod_params *p_ramrod = NULL;
252 struct fcoe_conn_offload_ramrod_data *p_data;
253 struct qed_spq_entry *p_ent = NULL;
254 struct qed_sp_init_data init_data;
255 u16 physical_q0, tmp;
259 memset(&init_data, 0, sizeof(init_data));
260 init_data.cid = p_conn->icid;
261 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
262 init_data.comp_mode = comp_mode;
263 init_data.p_comp_data = p_comp_addr;
265 rc = qed_sp_init_request(p_hwfn, &p_ent,
266 FCOE_RAMROD_CMD_ID_OFFLOAD_CONN,
267 PROTOCOLID_FCOE, &init_data);
271 p_ramrod = &p_ent->ramrod.fcoe_conn_ofld;
272 p_data = &p_ramrod->offload_ramrod_data;
274 /* Transmission PQ is the first of the PF */
275 physical_q0 = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD);
276 p_conn->physical_q0 = cpu_to_le16(physical_q0);
277 p_data->physical_q0 = cpu_to_le16(physical_q0);
279 p_data->conn_id = cpu_to_le16(p_conn->conn_id);
280 DMA_REGPAIR_LE(p_data->sq_pbl_addr, p_conn->sq_pbl_addr);
281 DMA_REGPAIR_LE(p_data->sq_curr_page_addr, p_conn->sq_curr_page_addr);
282 DMA_REGPAIR_LE(p_data->sq_next_page_addr, p_conn->sq_next_page_addr);
283 DMA_REGPAIR_LE(p_data->xferq_pbl_addr, p_conn->xferq_pbl_addr);
284 DMA_REGPAIR_LE(p_data->xferq_curr_page_addr, p_conn->xferq_addr[0]);
285 DMA_REGPAIR_LE(p_data->xferq_next_page_addr, p_conn->xferq_addr[1]);
287 DMA_REGPAIR_LE(p_data->respq_pbl_addr, p_conn->confq_pbl_addr);
288 DMA_REGPAIR_LE(p_data->respq_curr_page_addr, p_conn->confq_addr[0]);
289 DMA_REGPAIR_LE(p_data->respq_next_page_addr, p_conn->confq_addr[1]);
291 p_data->dst_mac_addr_lo = cpu_to_le16(p_conn->dst_mac_addr_lo);
292 p_data->dst_mac_addr_mid = cpu_to_le16(p_conn->dst_mac_addr_mid);
293 p_data->dst_mac_addr_hi = cpu_to_le16(p_conn->dst_mac_addr_hi);
294 p_data->src_mac_addr_lo = cpu_to_le16(p_conn->src_mac_addr_lo);
295 p_data->src_mac_addr_mid = cpu_to_le16(p_conn->src_mac_addr_mid);
296 p_data->src_mac_addr_hi = cpu_to_le16(p_conn->src_mac_addr_hi);
298 tmp = cpu_to_le16(p_conn->tx_max_fc_pay_len);
299 p_data->tx_max_fc_pay_len = tmp;
300 tmp = cpu_to_le16(p_conn->e_d_tov_timer_val);
301 p_data->e_d_tov_timer_val = tmp;
302 tmp = cpu_to_le16(p_conn->rec_tov_timer_val);
303 p_data->rec_rr_tov_timer_val = tmp;
304 tmp = cpu_to_le16(p_conn->rx_max_fc_pay_len);
305 p_data->rx_max_fc_pay_len = tmp;
307 p_data->vlan_tag = cpu_to_le16(p_conn->vlan_tag);
308 p_data->s_id.addr_hi = p_conn->s_id.addr_hi;
309 p_data->s_id.addr_mid = p_conn->s_id.addr_mid;
310 p_data->s_id.addr_lo = p_conn->s_id.addr_lo;
311 p_data->max_conc_seqs_c3 = p_conn->max_conc_seqs_c3;
312 p_data->d_id.addr_hi = p_conn->d_id.addr_hi;
313 p_data->d_id.addr_mid = p_conn->d_id.addr_mid;
314 p_data->d_id.addr_lo = p_conn->d_id.addr_lo;
315 p_data->flags = p_conn->flags;
316 if (test_bit(QED_MF_UFP_SPECIFIC, &p_hwfn->cdev->mf_bits))
317 SET_FIELD(p_data->flags,
318 FCOE_CONN_OFFLOAD_RAMROD_DATA_B_SINGLE_VLAN, 1);
319 p_data->def_q_idx = p_conn->def_q_idx;
321 return qed_spq_post(p_hwfn, p_ent, NULL);
325 qed_sp_fcoe_conn_destroy(struct qed_hwfn *p_hwfn,
326 struct qed_fcoe_conn *p_conn,
327 enum spq_mode comp_mode,
328 struct qed_spq_comp_cb *p_comp_addr)
330 struct fcoe_conn_terminate_ramrod_params *p_ramrod = NULL;
331 struct qed_spq_entry *p_ent = NULL;
332 struct qed_sp_init_data init_data;
336 memset(&init_data, 0, sizeof(init_data));
337 init_data.cid = p_conn->icid;
338 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
339 init_data.comp_mode = comp_mode;
340 init_data.p_comp_data = p_comp_addr;
342 rc = qed_sp_init_request(p_hwfn, &p_ent,
343 FCOE_RAMROD_CMD_ID_TERMINATE_CONN,
344 PROTOCOLID_FCOE, &init_data);
348 p_ramrod = &p_ent->ramrod.fcoe_conn_terminate;
349 DMA_REGPAIR_LE(p_ramrod->terminate_ramrod_data.terminate_params_addr,
350 p_conn->terminate_params);
352 return qed_spq_post(p_hwfn, p_ent, NULL);
356 qed_sp_fcoe_func_stop(struct qed_hwfn *p_hwfn,
357 struct qed_ptt *p_ptt,
358 enum spq_mode comp_mode,
359 struct qed_spq_comp_cb *p_comp_addr)
361 struct qed_spq_entry *p_ent = NULL;
362 struct qed_sp_init_data init_data;
367 memset(&init_data, 0, sizeof(init_data));
368 init_data.cid = p_hwfn->pf_params.fcoe_pf_params.dummy_icid;
369 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
370 init_data.comp_mode = comp_mode;
371 init_data.p_comp_data = p_comp_addr;
373 rc = qed_sp_init_request(p_hwfn, &p_ent,
374 FCOE_RAMROD_CMD_ID_DESTROY_FUNC,
375 PROTOCOLID_FCOE, &init_data);
379 active_segs = qed_rd(p_hwfn, p_ptt, TM_REG_PF_ENABLE_TASK);
380 active_segs &= ~BIT(QED_CXT_FCOE_TID_SEG);
381 qed_wr(p_hwfn, p_ptt, TM_REG_PF_ENABLE_TASK, active_segs);
383 return qed_spq_post(p_hwfn, p_ent, NULL);
387 qed_fcoe_allocate_connection(struct qed_hwfn *p_hwfn,
388 struct qed_fcoe_conn **p_out_conn)
390 struct qed_fcoe_conn *p_conn = NULL;
394 spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
395 if (!list_empty(&p_hwfn->p_fcoe_info->free_list))
397 list_first_entry(&p_hwfn->p_fcoe_info->free_list,
398 struct qed_fcoe_conn, list_entry);
400 list_del(&p_conn->list_entry);
401 spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
402 *p_out_conn = p_conn;
405 spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
407 p_conn = kzalloc(sizeof(*p_conn), GFP_KERNEL);
411 p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
413 &p_conn->xferq_pbl_addr, GFP_KERNEL);
415 goto nomem_pbl_xferq;
416 p_conn->xferq_pbl_addr_virt_addr = p_addr;
418 for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++) {
419 p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
421 &p_conn->xferq_addr[i], GFP_KERNEL);
424 p_conn->xferq_addr_virt_addr[i] = p_addr;
426 p_addr = p_conn->xferq_pbl_addr_virt_addr;
427 ((dma_addr_t *)p_addr)[i] = p_conn->xferq_addr[i];
430 p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
432 &p_conn->confq_pbl_addr, GFP_KERNEL);
435 p_conn->confq_pbl_addr_virt_addr = p_addr;
437 for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++) {
438 p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
440 &p_conn->confq_addr[i], GFP_KERNEL);
443 p_conn->confq_addr_virt_addr[i] = p_addr;
445 p_addr = p_conn->confq_pbl_addr_virt_addr;
446 ((dma_addr_t *)p_addr)[i] = p_conn->confq_addr[i];
449 p_conn->free_on_delete = true;
450 *p_out_conn = p_conn;
454 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
456 p_conn->confq_pbl_addr_virt_addr,
457 p_conn->confq_pbl_addr);
458 for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++)
459 if (p_conn->confq_addr_virt_addr[i])
460 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
462 p_conn->confq_addr_virt_addr[i],
463 p_conn->confq_addr[i]);
465 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
467 p_conn->xferq_pbl_addr_virt_addr,
468 p_conn->xferq_pbl_addr);
469 for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++)
470 if (p_conn->xferq_addr_virt_addr[i])
471 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
473 p_conn->xferq_addr_virt_addr[i],
474 p_conn->xferq_addr[i]);
480 static void qed_fcoe_free_connection(struct qed_hwfn *p_hwfn,
481 struct qed_fcoe_conn *p_conn)
488 if (p_conn->confq_pbl_addr_virt_addr)
489 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
491 p_conn->confq_pbl_addr_virt_addr,
492 p_conn->confq_pbl_addr);
494 for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++) {
495 if (!p_conn->confq_addr_virt_addr[i])
497 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
499 p_conn->confq_addr_virt_addr[i],
500 p_conn->confq_addr[i]);
503 if (p_conn->xferq_pbl_addr_virt_addr)
504 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
506 p_conn->xferq_pbl_addr_virt_addr,
507 p_conn->xferq_pbl_addr);
509 for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++) {
510 if (!p_conn->xferq_addr_virt_addr[i])
512 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
514 p_conn->xferq_addr_virt_addr[i],
515 p_conn->xferq_addr[i]);
520 static void __iomem *qed_fcoe_get_db_addr(struct qed_hwfn *p_hwfn, u32 cid)
522 return (u8 __iomem *)p_hwfn->doorbells +
523 qed_db_addr(cid, DQ_DEMS_LEGACY);
526 static void __iomem *qed_fcoe_get_primary_bdq_prod(struct qed_hwfn *p_hwfn,
529 if (RESC_NUM(p_hwfn, QED_BDQ)) {
530 return (u8 __iomem *)p_hwfn->regview +
531 GTT_BAR0_MAP_REG_MSDM_RAM +
532 MSTORM_SCSI_BDQ_EXT_PROD_OFFSET(RESC_START(p_hwfn,
536 DP_NOTICE(p_hwfn, "BDQ is not allocated!\n");
541 static void __iomem *qed_fcoe_get_secondary_bdq_prod(struct qed_hwfn *p_hwfn,
544 if (RESC_NUM(p_hwfn, QED_BDQ)) {
545 return (u8 __iomem *)p_hwfn->regview +
546 GTT_BAR0_MAP_REG_TSDM_RAM +
547 TSTORM_SCSI_BDQ_EXT_PROD_OFFSET(RESC_START(p_hwfn,
551 DP_NOTICE(p_hwfn, "BDQ is not allocated!\n");
556 int qed_fcoe_alloc(struct qed_hwfn *p_hwfn)
558 struct qed_fcoe_info *p_fcoe_info;
560 /* Allocate LL2's set struct */
561 p_fcoe_info = kzalloc(sizeof(*p_fcoe_info), GFP_KERNEL);
563 DP_NOTICE(p_hwfn, "Failed to allocate qed_fcoe_info'\n");
566 INIT_LIST_HEAD(&p_fcoe_info->free_list);
568 p_hwfn->p_fcoe_info = p_fcoe_info;
572 void qed_fcoe_setup(struct qed_hwfn *p_hwfn)
574 struct e4_fcoe_task_context *p_task_ctx = NULL;
578 spin_lock_init(&p_hwfn->p_fcoe_info->lock);
579 for (i = 0; i < p_hwfn->pf_params.fcoe_pf_params.num_tasks; i++) {
580 rc = qed_cxt_get_task_ctx(p_hwfn, i,
582 (void **)&p_task_ctx);
586 memset(p_task_ctx, 0, sizeof(struct e4_fcoe_task_context));
587 SET_FIELD(p_task_ctx->timer_context.logical_client_0,
588 TIMERS_CONTEXT_VALIDLC0, 1);
589 SET_FIELD(p_task_ctx->timer_context.logical_client_1,
590 TIMERS_CONTEXT_VALIDLC1, 1);
591 SET_FIELD(p_task_ctx->tstorm_ag_context.flags0,
592 E4_TSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE, 1);
596 void qed_fcoe_free(struct qed_hwfn *p_hwfn)
598 struct qed_fcoe_conn *p_conn = NULL;
600 if (!p_hwfn->p_fcoe_info)
603 while (!list_empty(&p_hwfn->p_fcoe_info->free_list)) {
604 p_conn = list_first_entry(&p_hwfn->p_fcoe_info->free_list,
605 struct qed_fcoe_conn, list_entry);
608 list_del(&p_conn->list_entry);
609 qed_fcoe_free_connection(p_hwfn, p_conn);
612 kfree(p_hwfn->p_fcoe_info);
613 p_hwfn->p_fcoe_info = NULL;
617 qed_fcoe_acquire_connection(struct qed_hwfn *p_hwfn,
618 struct qed_fcoe_conn *p_in_conn,
619 struct qed_fcoe_conn **p_out_conn)
621 struct qed_fcoe_conn *p_conn = NULL;
625 spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
626 rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_FCOE, &icid);
627 spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
631 /* Use input connection [if provided] or allocate a new one */
635 rc = qed_fcoe_allocate_connection(p_hwfn, &p_conn);
637 spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
638 qed_cxt_release_cid(p_hwfn, icid);
639 spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
645 p_conn->fw_cid = (p_hwfn->hw_info.opaque_fid << 16) | icid;
646 *p_out_conn = p_conn;
651 static void qed_fcoe_release_connection(struct qed_hwfn *p_hwfn,
652 struct qed_fcoe_conn *p_conn)
654 spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
655 list_add_tail(&p_conn->list_entry, &p_hwfn->p_fcoe_info->free_list);
656 qed_cxt_release_cid(p_hwfn, p_conn->icid);
657 spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
660 static void _qed_fcoe_get_tstats(struct qed_hwfn *p_hwfn,
661 struct qed_ptt *p_ptt,
662 struct qed_fcoe_stats *p_stats)
664 struct fcoe_rx_stat tstats;
667 memset(&tstats, 0, sizeof(tstats));
668 tstats_addr = BAR0_MAP_REG_TSDM_RAM +
669 TSTORM_FCOE_RX_STATS_OFFSET(p_hwfn->rel_pf_id);
670 qed_memcpy_from(p_hwfn, p_ptt, &tstats, tstats_addr, sizeof(tstats));
672 p_stats->fcoe_rx_byte_cnt = HILO_64_REGPAIR(tstats.fcoe_rx_byte_cnt);
673 p_stats->fcoe_rx_data_pkt_cnt =
674 HILO_64_REGPAIR(tstats.fcoe_rx_data_pkt_cnt);
675 p_stats->fcoe_rx_xfer_pkt_cnt =
676 HILO_64_REGPAIR(tstats.fcoe_rx_xfer_pkt_cnt);
677 p_stats->fcoe_rx_other_pkt_cnt =
678 HILO_64_REGPAIR(tstats.fcoe_rx_other_pkt_cnt);
680 p_stats->fcoe_silent_drop_pkt_cmdq_full_cnt =
681 le32_to_cpu(tstats.fcoe_silent_drop_pkt_cmdq_full_cnt);
682 p_stats->fcoe_silent_drop_pkt_rq_full_cnt =
683 le32_to_cpu(tstats.fcoe_silent_drop_pkt_rq_full_cnt);
684 p_stats->fcoe_silent_drop_pkt_crc_error_cnt =
685 le32_to_cpu(tstats.fcoe_silent_drop_pkt_crc_error_cnt);
686 p_stats->fcoe_silent_drop_pkt_task_invalid_cnt =
687 le32_to_cpu(tstats.fcoe_silent_drop_pkt_task_invalid_cnt);
688 p_stats->fcoe_silent_drop_total_pkt_cnt =
689 le32_to_cpu(tstats.fcoe_silent_drop_total_pkt_cnt);
692 static void _qed_fcoe_get_pstats(struct qed_hwfn *p_hwfn,
693 struct qed_ptt *p_ptt,
694 struct qed_fcoe_stats *p_stats)
696 struct fcoe_tx_stat pstats;
699 memset(&pstats, 0, sizeof(pstats));
700 pstats_addr = BAR0_MAP_REG_PSDM_RAM +
701 PSTORM_FCOE_TX_STATS_OFFSET(p_hwfn->rel_pf_id);
702 qed_memcpy_from(p_hwfn, p_ptt, &pstats, pstats_addr, sizeof(pstats));
704 p_stats->fcoe_tx_byte_cnt = HILO_64_REGPAIR(pstats.fcoe_tx_byte_cnt);
705 p_stats->fcoe_tx_data_pkt_cnt =
706 HILO_64_REGPAIR(pstats.fcoe_tx_data_pkt_cnt);
707 p_stats->fcoe_tx_xfer_pkt_cnt =
708 HILO_64_REGPAIR(pstats.fcoe_tx_xfer_pkt_cnt);
709 p_stats->fcoe_tx_other_pkt_cnt =
710 HILO_64_REGPAIR(pstats.fcoe_tx_other_pkt_cnt);
713 static int qed_fcoe_get_stats(struct qed_hwfn *p_hwfn,
714 struct qed_fcoe_stats *p_stats)
716 struct qed_ptt *p_ptt;
718 memset(p_stats, 0, sizeof(*p_stats));
720 p_ptt = qed_ptt_acquire(p_hwfn);
723 DP_ERR(p_hwfn, "Failed to acquire ptt\n");
727 _qed_fcoe_get_tstats(p_hwfn, p_ptt, p_stats);
728 _qed_fcoe_get_pstats(p_hwfn, p_ptt, p_stats);
730 qed_ptt_release(p_hwfn, p_ptt);
735 struct qed_hash_fcoe_con {
736 struct hlist_node node;
737 struct qed_fcoe_conn *con;
740 static int qed_fill_fcoe_dev_info(struct qed_dev *cdev,
741 struct qed_dev_fcoe_info *info)
743 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
746 memset(info, 0, sizeof(*info));
747 rc = qed_fill_dev_info(cdev, &info->common);
749 info->primary_dbq_rq_addr =
750 qed_fcoe_get_primary_bdq_prod(hwfn, BDQ_ID_RQ);
751 info->secondary_bdq_rq_addr =
752 qed_fcoe_get_secondary_bdq_prod(hwfn, BDQ_ID_RQ);
754 info->wwpn = hwfn->mcp_info->func_info.wwn_port;
755 info->wwnn = hwfn->mcp_info->func_info.wwn_node;
757 info->num_cqs = FEAT_NUM(hwfn, QED_FCOE_CQ);
762 static void qed_register_fcoe_ops(struct qed_dev *cdev,
763 struct qed_fcoe_cb_ops *ops, void *cookie)
765 cdev->protocol_ops.fcoe = ops;
766 cdev->ops_cookie = cookie;
769 static struct qed_hash_fcoe_con *qed_fcoe_get_hash(struct qed_dev *cdev,
772 struct qed_hash_fcoe_con *hash_con = NULL;
774 if (!(cdev->flags & QED_FLAG_STORAGE_STARTED))
777 hash_for_each_possible(cdev->connections, hash_con, node, handle) {
778 if (hash_con->con->icid == handle)
782 if (!hash_con || (hash_con->con->icid != handle))
788 static int qed_fcoe_stop(struct qed_dev *cdev)
790 struct qed_ptt *p_ptt;
793 if (!(cdev->flags & QED_FLAG_STORAGE_STARTED)) {
794 DP_NOTICE(cdev, "fcoe already stopped\n");
798 if (!hash_empty(cdev->connections)) {
800 "Can't stop fcoe - not all connections were returned\n");
804 p_ptt = qed_ptt_acquire(QED_LEADING_HWFN(cdev));
809 rc = qed_sp_fcoe_func_stop(QED_LEADING_HWFN(cdev), p_ptt,
810 QED_SPQ_MODE_EBLOCK, NULL);
811 cdev->flags &= ~QED_FLAG_STORAGE_STARTED;
812 qed_ptt_release(QED_LEADING_HWFN(cdev), p_ptt);
817 static int qed_fcoe_start(struct qed_dev *cdev, struct qed_fcoe_tid *tasks)
821 if (cdev->flags & QED_FLAG_STORAGE_STARTED) {
822 DP_NOTICE(cdev, "fcoe already started;\n");
826 rc = qed_sp_fcoe_func_start(QED_LEADING_HWFN(cdev),
827 QED_SPQ_MODE_EBLOCK, NULL);
829 DP_NOTICE(cdev, "Failed to start fcoe\n");
833 cdev->flags |= QED_FLAG_STORAGE_STARTED;
834 hash_init(cdev->connections);
837 struct qed_tid_mem *tid_info = kzalloc(sizeof(*tid_info),
842 "Failed to allocate tasks information\n");
847 rc = qed_cxt_get_tid_mem_info(QED_LEADING_HWFN(cdev), tid_info);
849 DP_NOTICE(cdev, "Failed to gather task information\n");
855 /* Fill task information */
856 tasks->size = tid_info->tid_size;
857 tasks->num_tids_per_block = tid_info->num_tids_per_block;
858 memcpy(tasks->blocks, tid_info->blocks,
859 MAX_TID_BLOCKS_FCOE * sizeof(u8 *));
867 static int qed_fcoe_acquire_conn(struct qed_dev *cdev,
869 u32 *fw_cid, void __iomem **p_doorbell)
871 struct qed_hash_fcoe_con *hash_con;
874 /* Allocate a hashed connection */
875 hash_con = kzalloc(sizeof(*hash_con), GFP_KERNEL);
877 DP_NOTICE(cdev, "Failed to allocate hashed connection\n");
881 /* Acquire the connection */
882 rc = qed_fcoe_acquire_connection(QED_LEADING_HWFN(cdev), NULL,
885 DP_NOTICE(cdev, "Failed to acquire Connection\n");
890 /* Added the connection to hash table */
891 *handle = hash_con->con->icid;
892 *fw_cid = hash_con->con->fw_cid;
893 hash_add(cdev->connections, &hash_con->node, *handle);
896 *p_doorbell = qed_fcoe_get_db_addr(QED_LEADING_HWFN(cdev),
902 static int qed_fcoe_release_conn(struct qed_dev *cdev, u32 handle)
904 struct qed_hash_fcoe_con *hash_con;
906 hash_con = qed_fcoe_get_hash(cdev, handle);
908 DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
913 hlist_del(&hash_con->node);
914 qed_fcoe_release_connection(QED_LEADING_HWFN(cdev), hash_con->con);
920 static int qed_fcoe_offload_conn(struct qed_dev *cdev,
922 struct qed_fcoe_params_offload *conn_info)
924 struct qed_hash_fcoe_con *hash_con;
925 struct qed_fcoe_conn *con;
927 hash_con = qed_fcoe_get_hash(cdev, handle);
929 DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
934 /* Update the connection with information from the params */
937 con->sq_pbl_addr = conn_info->sq_pbl_addr;
938 con->sq_curr_page_addr = conn_info->sq_curr_page_addr;
939 con->sq_next_page_addr = conn_info->sq_next_page_addr;
940 con->tx_max_fc_pay_len = conn_info->tx_max_fc_pay_len;
941 con->e_d_tov_timer_val = conn_info->e_d_tov_timer_val;
942 con->rec_tov_timer_val = conn_info->rec_tov_timer_val;
943 con->rx_max_fc_pay_len = conn_info->rx_max_fc_pay_len;
944 con->vlan_tag = conn_info->vlan_tag;
945 con->max_conc_seqs_c3 = conn_info->max_conc_seqs_c3;
946 con->flags = conn_info->flags;
947 con->def_q_idx = conn_info->def_q_idx;
949 con->src_mac_addr_hi = (conn_info->src_mac[5] << 8) |
950 conn_info->src_mac[4];
951 con->src_mac_addr_mid = (conn_info->src_mac[3] << 8) |
952 conn_info->src_mac[2];
953 con->src_mac_addr_lo = (conn_info->src_mac[1] << 8) |
954 conn_info->src_mac[0];
955 con->dst_mac_addr_hi = (conn_info->dst_mac[5] << 8) |
956 conn_info->dst_mac[4];
957 con->dst_mac_addr_mid = (conn_info->dst_mac[3] << 8) |
958 conn_info->dst_mac[2];
959 con->dst_mac_addr_lo = (conn_info->dst_mac[1] << 8) |
960 conn_info->dst_mac[0];
962 con->s_id.addr_hi = conn_info->s_id.addr_hi;
963 con->s_id.addr_mid = conn_info->s_id.addr_mid;
964 con->s_id.addr_lo = conn_info->s_id.addr_lo;
965 con->d_id.addr_hi = conn_info->d_id.addr_hi;
966 con->d_id.addr_mid = conn_info->d_id.addr_mid;
967 con->d_id.addr_lo = conn_info->d_id.addr_lo;
969 return qed_sp_fcoe_conn_offload(QED_LEADING_HWFN(cdev), con,
970 QED_SPQ_MODE_EBLOCK, NULL);
973 static int qed_fcoe_destroy_conn(struct qed_dev *cdev,
974 u32 handle, dma_addr_t terminate_params)
976 struct qed_hash_fcoe_con *hash_con;
977 struct qed_fcoe_conn *con;
979 hash_con = qed_fcoe_get_hash(cdev, handle);
981 DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
986 /* Update the connection with information from the params */
988 con->terminate_params = terminate_params;
990 return qed_sp_fcoe_conn_destroy(QED_LEADING_HWFN(cdev), con,
991 QED_SPQ_MODE_EBLOCK, NULL);
994 static int qed_fcoe_stats(struct qed_dev *cdev, struct qed_fcoe_stats *stats)
996 return qed_fcoe_get_stats(QED_LEADING_HWFN(cdev), stats);
999 void qed_get_protocol_stats_fcoe(struct qed_dev *cdev,
1000 struct qed_mcp_fcoe_stats *stats)
1002 struct qed_fcoe_stats proto_stats;
1004 /* Retrieve FW statistics */
1005 memset(&proto_stats, 0, sizeof(proto_stats));
1006 if (qed_fcoe_stats(cdev, &proto_stats)) {
1007 DP_VERBOSE(cdev, QED_MSG_STORAGE,
1008 "Failed to collect FCoE statistics\n");
1012 /* Translate FW statistics into struct */
1013 stats->rx_pkts = proto_stats.fcoe_rx_data_pkt_cnt +
1014 proto_stats.fcoe_rx_xfer_pkt_cnt +
1015 proto_stats.fcoe_rx_other_pkt_cnt;
1016 stats->tx_pkts = proto_stats.fcoe_tx_data_pkt_cnt +
1017 proto_stats.fcoe_tx_xfer_pkt_cnt +
1018 proto_stats.fcoe_tx_other_pkt_cnt;
1019 stats->fcs_err = proto_stats.fcoe_silent_drop_pkt_crc_error_cnt;
1021 /* Request protocol driver to fill-in the rest */
1022 if (cdev->protocol_ops.fcoe && cdev->ops_cookie) {
1023 struct qed_fcoe_cb_ops *ops = cdev->protocol_ops.fcoe;
1024 void *cookie = cdev->ops_cookie;
1026 if (ops->get_login_failures)
1027 stats->login_failure = ops->get_login_failures(cookie);
1031 static const struct qed_fcoe_ops qed_fcoe_ops_pass = {
1032 .common = &qed_common_ops_pass,
1033 .ll2 = &qed_ll2_ops_pass,
1034 .fill_dev_info = &qed_fill_fcoe_dev_info,
1035 .start = &qed_fcoe_start,
1036 .stop = &qed_fcoe_stop,
1037 .register_ops = &qed_register_fcoe_ops,
1038 .acquire_conn = &qed_fcoe_acquire_conn,
1039 .release_conn = &qed_fcoe_release_conn,
1040 .offload_conn = &qed_fcoe_offload_conn,
1041 .destroy_conn = &qed_fcoe_destroy_conn,
1042 .get_stats = &qed_fcoe_stats,
1045 const struct qed_fcoe_ops *qed_get_fcoe_ops(void)
1047 return &qed_fcoe_ops_pass;
1049 EXPORT_SYMBOL(qed_get_fcoe_ops);
1051 void qed_put_fcoe_ops(void)
1054 EXPORT_SYMBOL(qed_put_fcoe_ops);