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/version.h>
47 #include <linux/workqueue.h>
48 #include <linux/errno.h>
49 #include <linux/list.h>
50 #include <linux/spinlock.h>
51 #define __PREVENT_DUMP_MEM_ARR__
52 #define __PREVENT_PXP_GLOBAL_WIN__
55 #include "qed_dev_api.h"
62 #include "qed_reg_addr.h"
64 #include "qed_sriov.h"
65 #include <linux/qed/qed_fcoe_if.h>
67 struct qed_fcoe_conn {
68 struct list_head list_entry;
76 dma_addr_t sq_pbl_addr;
77 dma_addr_t sq_curr_page_addr;
78 dma_addr_t sq_next_page_addr;
79 dma_addr_t xferq_pbl_addr;
80 void *xferq_pbl_addr_virt_addr;
81 dma_addr_t xferq_addr[4];
82 void *xferq_addr_virt_addr[4];
83 dma_addr_t confq_pbl_addr;
84 void *confq_pbl_addr_virt_addr;
85 dma_addr_t confq_addr[2];
86 void *confq_addr_virt_addr[2];
88 dma_addr_t terminate_params;
97 u16 tx_max_fc_pay_len;
98 u16 e_d_tov_timer_val;
99 u16 rec_tov_timer_val;
100 u16 rx_max_fc_pay_len;
104 struct fc_addr_nw s_id;
106 struct fc_addr_nw d_id;
112 qed_sp_fcoe_func_start(struct qed_hwfn *p_hwfn,
113 enum spq_mode comp_mode,
114 struct qed_spq_comp_cb *p_comp_addr)
116 struct qed_fcoe_pf_params *fcoe_pf_params = NULL;
117 struct fcoe_init_ramrod_params *p_ramrod = NULL;
118 struct fcoe_init_func_ramrod_data *p_data;
119 struct fcoe_conn_context *p_cxt = NULL;
120 struct qed_spq_entry *p_ent = NULL;
121 struct qed_sp_init_data init_data;
122 struct qed_cxt_info cxt_info;
129 memset(&init_data, 0, sizeof(init_data));
130 init_data.cid = qed_spq_get_cid(p_hwfn);
131 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
132 init_data.comp_mode = comp_mode;
133 init_data.p_comp_data = p_comp_addr;
135 rc = qed_sp_init_request(p_hwfn, &p_ent,
136 FCOE_RAMROD_CMD_ID_INIT_FUNC,
137 PROTOCOLID_FCOE, &init_data);
141 p_ramrod = &p_ent->ramrod.fcoe_init;
142 p_data = &p_ramrod->init_ramrod_data;
143 fcoe_pf_params = &p_hwfn->pf_params.fcoe_pf_params;
145 p_data->mtu = cpu_to_le16(fcoe_pf_params->mtu);
146 tmp = cpu_to_le16(fcoe_pf_params->sq_num_pbl_pages);
147 p_data->sq_num_pages_in_pbl = tmp;
149 rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_FCOE, &dummy_cid);
153 cxt_info.iid = dummy_cid;
154 rc = qed_cxt_get_cid_info(p_hwfn, &cxt_info);
156 DP_NOTICE(p_hwfn, "Cannot find context info for dummy cid=%d\n",
160 p_cxt = cxt_info.p_cxt;
161 SET_FIELD(p_cxt->tstorm_ag_context.flags3,
162 TSTORM_FCOE_CONN_AG_CTX_DUMMY_TIMER_CF_EN, 1);
164 fcoe_pf_params->dummy_icid = (u16)dummy_cid;
166 tmp = cpu_to_le16(fcoe_pf_params->num_tasks);
167 p_data->func_params.num_tasks = tmp;
168 p_data->func_params.log_page_size = fcoe_pf_params->log_page_size;
169 p_data->func_params.debug_mode = fcoe_pf_params->debug_mode;
171 DMA_REGPAIR_LE(p_data->q_params.glbl_q_params_addr,
172 fcoe_pf_params->glbl_q_params_addr);
174 tmp = cpu_to_le16(fcoe_pf_params->cq_num_entries);
175 p_data->q_params.cq_num_entries = tmp;
177 tmp = cpu_to_le16(fcoe_pf_params->cmdq_num_entries);
178 p_data->q_params.cmdq_num_entries = tmp;
180 tmp = fcoe_pf_params->num_cqs;
181 p_data->q_params.num_queues = (u8)tmp;
183 tmp = (u16)p_hwfn->hw_info.resc_start[QED_CMDQS_CQS];
184 p_data->q_params.queue_relative_offset = (u8)tmp;
186 for (i = 0; i < fcoe_pf_params->num_cqs; i++) {
187 tmp = cpu_to_le16(p_hwfn->sbs_info[i]->igu_sb_id);
188 p_data->q_params.cq_cmdq_sb_num_arr[i] = tmp;
191 p_data->q_params.cq_sb_pi = fcoe_pf_params->gl_rq_pi;
192 p_data->q_params.cmdq_sb_pi = fcoe_pf_params->gl_cmd_pi;
194 p_data->q_params.bdq_resource_id = (u8)RESC_START(p_hwfn, QED_BDQ);
196 DMA_REGPAIR_LE(p_data->q_params.bdq_pbl_base_address[BDQ_ID_RQ],
197 fcoe_pf_params->bdq_pbl_base_addr[BDQ_ID_RQ]);
198 p_data->q_params.bdq_pbl_num_entries[BDQ_ID_RQ] =
199 fcoe_pf_params->bdq_pbl_num_entries[BDQ_ID_RQ];
200 tmp = fcoe_pf_params->bdq_xoff_threshold[BDQ_ID_RQ];
201 p_data->q_params.bdq_xoff_threshold[BDQ_ID_RQ] = cpu_to_le16(tmp);
202 tmp = fcoe_pf_params->bdq_xon_threshold[BDQ_ID_RQ];
203 p_data->q_params.bdq_xon_threshold[BDQ_ID_RQ] = cpu_to_le16(tmp);
205 DMA_REGPAIR_LE(p_data->q_params.bdq_pbl_base_address[BDQ_ID_IMM_DATA],
206 fcoe_pf_params->bdq_pbl_base_addr[BDQ_ID_IMM_DATA]);
207 p_data->q_params.bdq_pbl_num_entries[BDQ_ID_IMM_DATA] =
208 fcoe_pf_params->bdq_pbl_num_entries[BDQ_ID_IMM_DATA];
209 tmp = fcoe_pf_params->bdq_xoff_threshold[BDQ_ID_IMM_DATA];
210 p_data->q_params.bdq_xoff_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(tmp);
211 tmp = fcoe_pf_params->bdq_xon_threshold[BDQ_ID_IMM_DATA];
212 p_data->q_params.bdq_xon_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(tmp);
213 tmp = fcoe_pf_params->rq_buffer_size;
214 p_data->q_params.rq_buffer_size = cpu_to_le16(tmp);
216 if (fcoe_pf_params->is_target) {
217 SET_FIELD(p_data->q_params.q_validity,
218 SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
219 if (p_data->q_params.bdq_pbl_num_entries[BDQ_ID_IMM_DATA])
220 SET_FIELD(p_data->q_params.q_validity,
221 SCSI_INIT_FUNC_QUEUES_IMM_DATA_VALID, 1);
222 SET_FIELD(p_data->q_params.q_validity,
223 SCSI_INIT_FUNC_QUEUES_CMD_VALID, 1);
225 SET_FIELD(p_data->q_params.q_validity,
226 SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
229 rc = qed_spq_post(p_hwfn, p_ent, NULL);
235 qed_sp_fcoe_conn_offload(struct qed_hwfn *p_hwfn,
236 struct qed_fcoe_conn *p_conn,
237 enum spq_mode comp_mode,
238 struct qed_spq_comp_cb *p_comp_addr)
240 struct fcoe_conn_offload_ramrod_params *p_ramrod = NULL;
241 struct fcoe_conn_offload_ramrod_data *p_data;
242 struct qed_spq_entry *p_ent = NULL;
243 struct qed_sp_init_data init_data;
244 u16 physical_q0, tmp;
248 memset(&init_data, 0, sizeof(init_data));
249 init_data.cid = p_conn->icid;
250 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
251 init_data.comp_mode = comp_mode;
252 init_data.p_comp_data = p_comp_addr;
254 rc = qed_sp_init_request(p_hwfn, &p_ent,
255 FCOE_RAMROD_CMD_ID_OFFLOAD_CONN,
256 PROTOCOLID_FCOE, &init_data);
260 p_ramrod = &p_ent->ramrod.fcoe_conn_ofld;
261 p_data = &p_ramrod->offload_ramrod_data;
263 /* Transmission PQ is the first of the PF */
264 physical_q0 = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD);
265 p_conn->physical_q0 = cpu_to_le16(physical_q0);
266 p_data->physical_q0 = cpu_to_le16(physical_q0);
268 p_data->conn_id = cpu_to_le16(p_conn->conn_id);
269 DMA_REGPAIR_LE(p_data->sq_pbl_addr, p_conn->sq_pbl_addr);
270 DMA_REGPAIR_LE(p_data->sq_curr_page_addr, p_conn->sq_curr_page_addr);
271 DMA_REGPAIR_LE(p_data->sq_next_page_addr, p_conn->sq_next_page_addr);
272 DMA_REGPAIR_LE(p_data->xferq_pbl_addr, p_conn->xferq_pbl_addr);
273 DMA_REGPAIR_LE(p_data->xferq_curr_page_addr, p_conn->xferq_addr[0]);
274 DMA_REGPAIR_LE(p_data->xferq_next_page_addr, p_conn->xferq_addr[1]);
276 DMA_REGPAIR_LE(p_data->respq_pbl_addr, p_conn->confq_pbl_addr);
277 DMA_REGPAIR_LE(p_data->respq_curr_page_addr, p_conn->confq_addr[0]);
278 DMA_REGPAIR_LE(p_data->respq_next_page_addr, p_conn->confq_addr[1]);
280 p_data->dst_mac_addr_lo = cpu_to_le16(p_conn->dst_mac_addr_lo);
281 p_data->dst_mac_addr_mid = cpu_to_le16(p_conn->dst_mac_addr_mid);
282 p_data->dst_mac_addr_hi = cpu_to_le16(p_conn->dst_mac_addr_hi);
283 p_data->src_mac_addr_lo = cpu_to_le16(p_conn->src_mac_addr_lo);
284 p_data->src_mac_addr_mid = cpu_to_le16(p_conn->src_mac_addr_mid);
285 p_data->src_mac_addr_hi = cpu_to_le16(p_conn->src_mac_addr_hi);
287 tmp = cpu_to_le16(p_conn->tx_max_fc_pay_len);
288 p_data->tx_max_fc_pay_len = tmp;
289 tmp = cpu_to_le16(p_conn->e_d_tov_timer_val);
290 p_data->e_d_tov_timer_val = tmp;
291 tmp = cpu_to_le16(p_conn->rec_tov_timer_val);
292 p_data->rec_rr_tov_timer_val = tmp;
293 tmp = cpu_to_le16(p_conn->rx_max_fc_pay_len);
294 p_data->rx_max_fc_pay_len = tmp;
296 p_data->vlan_tag = cpu_to_le16(p_conn->vlan_tag);
297 p_data->s_id.addr_hi = p_conn->s_id.addr_hi;
298 p_data->s_id.addr_mid = p_conn->s_id.addr_mid;
299 p_data->s_id.addr_lo = p_conn->s_id.addr_lo;
300 p_data->max_conc_seqs_c3 = p_conn->max_conc_seqs_c3;
301 p_data->d_id.addr_hi = p_conn->d_id.addr_hi;
302 p_data->d_id.addr_mid = p_conn->d_id.addr_mid;
303 p_data->d_id.addr_lo = p_conn->d_id.addr_lo;
304 p_data->flags = p_conn->flags;
305 p_data->def_q_idx = p_conn->def_q_idx;
307 return qed_spq_post(p_hwfn, p_ent, NULL);
311 qed_sp_fcoe_conn_destroy(struct qed_hwfn *p_hwfn,
312 struct qed_fcoe_conn *p_conn,
313 enum spq_mode comp_mode,
314 struct qed_spq_comp_cb *p_comp_addr)
316 struct fcoe_conn_terminate_ramrod_params *p_ramrod = NULL;
317 struct qed_spq_entry *p_ent = NULL;
318 struct qed_sp_init_data init_data;
322 memset(&init_data, 0, sizeof(init_data));
323 init_data.cid = p_conn->icid;
324 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
325 init_data.comp_mode = comp_mode;
326 init_data.p_comp_data = p_comp_addr;
328 rc = qed_sp_init_request(p_hwfn, &p_ent,
329 FCOE_RAMROD_CMD_ID_TERMINATE_CONN,
330 PROTOCOLID_FCOE, &init_data);
334 p_ramrod = &p_ent->ramrod.fcoe_conn_terminate;
335 DMA_REGPAIR_LE(p_ramrod->terminate_ramrod_data.terminate_params_addr,
336 p_conn->terminate_params);
338 return qed_spq_post(p_hwfn, p_ent, NULL);
342 qed_sp_fcoe_func_stop(struct qed_hwfn *p_hwfn,
343 struct qed_ptt *p_ptt,
344 enum spq_mode comp_mode,
345 struct qed_spq_comp_cb *p_comp_addr)
347 struct qed_spq_entry *p_ent = NULL;
348 struct qed_sp_init_data init_data;
353 memset(&init_data, 0, sizeof(init_data));
354 init_data.cid = p_hwfn->pf_params.fcoe_pf_params.dummy_icid;
355 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
356 init_data.comp_mode = comp_mode;
357 init_data.p_comp_data = p_comp_addr;
359 rc = qed_sp_init_request(p_hwfn, &p_ent,
360 FCOE_RAMROD_CMD_ID_DESTROY_FUNC,
361 PROTOCOLID_FCOE, &init_data);
365 active_segs = qed_rd(p_hwfn, p_ptt, TM_REG_PF_ENABLE_TASK);
366 active_segs &= ~BIT(QED_CXT_FCOE_TID_SEG);
367 qed_wr(p_hwfn, p_ptt, TM_REG_PF_ENABLE_TASK, active_segs);
369 return qed_spq_post(p_hwfn, p_ent, NULL);
373 qed_fcoe_allocate_connection(struct qed_hwfn *p_hwfn,
374 struct qed_fcoe_conn **p_out_conn)
376 struct qed_fcoe_conn *p_conn = NULL;
380 spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
381 if (!list_empty(&p_hwfn->p_fcoe_info->free_list))
383 list_first_entry(&p_hwfn->p_fcoe_info->free_list,
384 struct qed_fcoe_conn, list_entry);
386 list_del(&p_conn->list_entry);
387 spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
388 *p_out_conn = p_conn;
391 spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
393 p_conn = kzalloc(sizeof(*p_conn), GFP_KERNEL);
397 p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
399 &p_conn->xferq_pbl_addr, GFP_KERNEL);
401 goto nomem_pbl_xferq;
402 p_conn->xferq_pbl_addr_virt_addr = p_addr;
404 for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++) {
405 p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
407 &p_conn->xferq_addr[i], GFP_KERNEL);
410 p_conn->xferq_addr_virt_addr[i] = p_addr;
412 p_addr = p_conn->xferq_pbl_addr_virt_addr;
413 ((dma_addr_t *)p_addr)[i] = p_conn->xferq_addr[i];
416 p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
418 &p_conn->confq_pbl_addr, GFP_KERNEL);
421 p_conn->confq_pbl_addr_virt_addr = p_addr;
423 for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++) {
424 p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
426 &p_conn->confq_addr[i], GFP_KERNEL);
429 p_conn->confq_addr_virt_addr[i] = p_addr;
431 p_addr = p_conn->confq_pbl_addr_virt_addr;
432 ((dma_addr_t *)p_addr)[i] = p_conn->confq_addr[i];
435 p_conn->free_on_delete = true;
436 *p_out_conn = p_conn;
440 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
442 p_conn->confq_pbl_addr_virt_addr,
443 p_conn->confq_pbl_addr);
444 for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++)
445 if (p_conn->confq_addr_virt_addr[i])
446 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
448 p_conn->confq_addr_virt_addr[i],
449 p_conn->confq_addr[i]);
451 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
453 p_conn->xferq_pbl_addr_virt_addr,
454 p_conn->xferq_pbl_addr);
455 for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++)
456 if (p_conn->xferq_addr_virt_addr[i])
457 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
459 p_conn->xferq_addr_virt_addr[i],
460 p_conn->xferq_addr[i]);
466 static void qed_fcoe_free_connection(struct qed_hwfn *p_hwfn,
467 struct qed_fcoe_conn *p_conn)
474 if (p_conn->confq_pbl_addr_virt_addr)
475 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
477 p_conn->confq_pbl_addr_virt_addr,
478 p_conn->confq_pbl_addr);
480 for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++) {
481 if (!p_conn->confq_addr_virt_addr[i])
483 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
485 p_conn->confq_addr_virt_addr[i],
486 p_conn->confq_addr[i]);
489 if (p_conn->xferq_pbl_addr_virt_addr)
490 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
492 p_conn->xferq_pbl_addr_virt_addr,
493 p_conn->xferq_pbl_addr);
495 for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++) {
496 if (!p_conn->xferq_addr_virt_addr[i])
498 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
500 p_conn->xferq_addr_virt_addr[i],
501 p_conn->xferq_addr[i]);
506 static void __iomem *qed_fcoe_get_db_addr(struct qed_hwfn *p_hwfn, u32 cid)
508 return (u8 __iomem *)p_hwfn->doorbells +
509 qed_db_addr(cid, DQ_DEMS_LEGACY);
512 static void __iomem *qed_fcoe_get_primary_bdq_prod(struct qed_hwfn *p_hwfn,
515 if (RESC_NUM(p_hwfn, QED_BDQ)) {
516 return (u8 __iomem *)p_hwfn->regview +
517 GTT_BAR0_MAP_REG_MSDM_RAM +
518 MSTORM_SCSI_BDQ_EXT_PROD_OFFSET(RESC_START(p_hwfn,
522 DP_NOTICE(p_hwfn, "BDQ is not allocated!\n");
527 static void __iomem *qed_fcoe_get_secondary_bdq_prod(struct qed_hwfn *p_hwfn,
530 if (RESC_NUM(p_hwfn, QED_BDQ)) {
531 return (u8 __iomem *)p_hwfn->regview +
532 GTT_BAR0_MAP_REG_TSDM_RAM +
533 TSTORM_SCSI_BDQ_EXT_PROD_OFFSET(RESC_START(p_hwfn,
537 DP_NOTICE(p_hwfn, "BDQ is not allocated!\n");
542 struct qed_fcoe_info *qed_fcoe_alloc(struct qed_hwfn *p_hwfn)
544 struct qed_fcoe_info *p_fcoe_info;
546 /* Allocate LL2's set struct */
547 p_fcoe_info = kzalloc(sizeof(*p_fcoe_info), GFP_KERNEL);
549 DP_NOTICE(p_hwfn, "Failed to allocate qed_fcoe_info'\n");
552 INIT_LIST_HEAD(&p_fcoe_info->free_list);
556 void qed_fcoe_setup(struct qed_hwfn *p_hwfn, struct qed_fcoe_info *p_fcoe_info)
558 struct fcoe_task_context *p_task_ctx = NULL;
562 spin_lock_init(&p_fcoe_info->lock);
563 for (i = 0; i < p_hwfn->pf_params.fcoe_pf_params.num_tasks; i++) {
564 rc = qed_cxt_get_task_ctx(p_hwfn, i,
566 (void **)&p_task_ctx);
570 memset(p_task_ctx, 0, sizeof(struct fcoe_task_context));
571 SET_FIELD(p_task_ctx->timer_context.logical_client_0,
572 TIMERS_CONTEXT_VALIDLC0, 1);
573 SET_FIELD(p_task_ctx->timer_context.logical_client_1,
574 TIMERS_CONTEXT_VALIDLC1, 1);
575 SET_FIELD(p_task_ctx->tstorm_ag_context.flags0,
576 TSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE, 1);
580 void qed_fcoe_free(struct qed_hwfn *p_hwfn, struct qed_fcoe_info *p_fcoe_info)
582 struct qed_fcoe_conn *p_conn = NULL;
587 while (!list_empty(&p_fcoe_info->free_list)) {
588 p_conn = list_first_entry(&p_fcoe_info->free_list,
589 struct qed_fcoe_conn, list_entry);
592 list_del(&p_conn->list_entry);
593 qed_fcoe_free_connection(p_hwfn, p_conn);
600 qed_fcoe_acquire_connection(struct qed_hwfn *p_hwfn,
601 struct qed_fcoe_conn *p_in_conn,
602 struct qed_fcoe_conn **p_out_conn)
604 struct qed_fcoe_conn *p_conn = NULL;
608 spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
609 rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_FCOE, &icid);
610 spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
614 /* Use input connection [if provided] or allocate a new one */
618 rc = qed_fcoe_allocate_connection(p_hwfn, &p_conn);
620 spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
621 qed_cxt_release_cid(p_hwfn, icid);
622 spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
628 p_conn->fw_cid = (p_hwfn->hw_info.opaque_fid << 16) | icid;
629 *p_out_conn = p_conn;
634 static void qed_fcoe_release_connection(struct qed_hwfn *p_hwfn,
635 struct qed_fcoe_conn *p_conn)
637 spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
638 list_add_tail(&p_conn->list_entry, &p_hwfn->p_fcoe_info->free_list);
639 qed_cxt_release_cid(p_hwfn, p_conn->icid);
640 spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
643 static void _qed_fcoe_get_tstats(struct qed_hwfn *p_hwfn,
644 struct qed_ptt *p_ptt,
645 struct qed_fcoe_stats *p_stats)
647 struct fcoe_rx_stat tstats;
650 memset(&tstats, 0, sizeof(tstats));
651 tstats_addr = BAR0_MAP_REG_TSDM_RAM +
652 TSTORM_FCOE_RX_STATS_OFFSET(p_hwfn->rel_pf_id);
653 qed_memcpy_from(p_hwfn, p_ptt, &tstats, tstats_addr, sizeof(tstats));
655 p_stats->fcoe_rx_byte_cnt = HILO_64_REGPAIR(tstats.fcoe_rx_byte_cnt);
656 p_stats->fcoe_rx_data_pkt_cnt =
657 HILO_64_REGPAIR(tstats.fcoe_rx_data_pkt_cnt);
658 p_stats->fcoe_rx_xfer_pkt_cnt =
659 HILO_64_REGPAIR(tstats.fcoe_rx_xfer_pkt_cnt);
660 p_stats->fcoe_rx_other_pkt_cnt =
661 HILO_64_REGPAIR(tstats.fcoe_rx_other_pkt_cnt);
663 p_stats->fcoe_silent_drop_pkt_cmdq_full_cnt =
664 le32_to_cpu(tstats.fcoe_silent_drop_pkt_cmdq_full_cnt);
665 p_stats->fcoe_silent_drop_pkt_rq_full_cnt =
666 le32_to_cpu(tstats.fcoe_silent_drop_pkt_rq_full_cnt);
667 p_stats->fcoe_silent_drop_pkt_crc_error_cnt =
668 le32_to_cpu(tstats.fcoe_silent_drop_pkt_crc_error_cnt);
669 p_stats->fcoe_silent_drop_pkt_task_invalid_cnt =
670 le32_to_cpu(tstats.fcoe_silent_drop_pkt_task_invalid_cnt);
671 p_stats->fcoe_silent_drop_total_pkt_cnt =
672 le32_to_cpu(tstats.fcoe_silent_drop_total_pkt_cnt);
675 static void _qed_fcoe_get_pstats(struct qed_hwfn *p_hwfn,
676 struct qed_ptt *p_ptt,
677 struct qed_fcoe_stats *p_stats)
679 struct fcoe_tx_stat pstats;
682 memset(&pstats, 0, sizeof(pstats));
683 pstats_addr = BAR0_MAP_REG_PSDM_RAM +
684 PSTORM_FCOE_TX_STATS_OFFSET(p_hwfn->rel_pf_id);
685 qed_memcpy_from(p_hwfn, p_ptt, &pstats, pstats_addr, sizeof(pstats));
687 p_stats->fcoe_tx_byte_cnt = HILO_64_REGPAIR(pstats.fcoe_tx_byte_cnt);
688 p_stats->fcoe_tx_data_pkt_cnt =
689 HILO_64_REGPAIR(pstats.fcoe_tx_data_pkt_cnt);
690 p_stats->fcoe_tx_xfer_pkt_cnt =
691 HILO_64_REGPAIR(pstats.fcoe_tx_xfer_pkt_cnt);
692 p_stats->fcoe_tx_other_pkt_cnt =
693 HILO_64_REGPAIR(pstats.fcoe_tx_other_pkt_cnt);
696 static int qed_fcoe_get_stats(struct qed_hwfn *p_hwfn,
697 struct qed_fcoe_stats *p_stats)
699 struct qed_ptt *p_ptt;
701 memset(p_stats, 0, sizeof(*p_stats));
703 p_ptt = qed_ptt_acquire(p_hwfn);
706 DP_ERR(p_hwfn, "Failed to acquire ptt\n");
710 _qed_fcoe_get_tstats(p_hwfn, p_ptt, p_stats);
711 _qed_fcoe_get_pstats(p_hwfn, p_ptt, p_stats);
713 qed_ptt_release(p_hwfn, p_ptt);
718 struct qed_hash_fcoe_con {
719 struct hlist_node node;
720 struct qed_fcoe_conn *con;
723 static int qed_fill_fcoe_dev_info(struct qed_dev *cdev,
724 struct qed_dev_fcoe_info *info)
726 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
729 memset(info, 0, sizeof(*info));
730 rc = qed_fill_dev_info(cdev, &info->common);
732 info->primary_dbq_rq_addr =
733 qed_fcoe_get_primary_bdq_prod(hwfn, BDQ_ID_RQ);
734 info->secondary_bdq_rq_addr =
735 qed_fcoe_get_secondary_bdq_prod(hwfn, BDQ_ID_RQ);
740 static void qed_register_fcoe_ops(struct qed_dev *cdev,
741 struct qed_fcoe_cb_ops *ops, void *cookie)
743 cdev->protocol_ops.fcoe = ops;
744 cdev->ops_cookie = cookie;
747 static struct qed_hash_fcoe_con *qed_fcoe_get_hash(struct qed_dev *cdev,
750 struct qed_hash_fcoe_con *hash_con = NULL;
752 if (!(cdev->flags & QED_FLAG_STORAGE_STARTED))
755 hash_for_each_possible(cdev->connections, hash_con, node, handle) {
756 if (hash_con->con->icid == handle)
760 if (!hash_con || (hash_con->con->icid != handle))
766 static int qed_fcoe_stop(struct qed_dev *cdev)
768 struct qed_ptt *p_ptt;
771 if (!(cdev->flags & QED_FLAG_STORAGE_STARTED)) {
772 DP_NOTICE(cdev, "fcoe already stopped\n");
776 if (!hash_empty(cdev->connections)) {
778 "Can't stop fcoe - not all connections were returned\n");
782 p_ptt = qed_ptt_acquire(QED_LEADING_HWFN(cdev));
787 rc = qed_sp_fcoe_func_stop(QED_LEADING_HWFN(cdev), p_ptt,
788 QED_SPQ_MODE_EBLOCK, NULL);
789 cdev->flags &= ~QED_FLAG_STORAGE_STARTED;
790 qed_ptt_release(QED_LEADING_HWFN(cdev), p_ptt);
795 static int qed_fcoe_start(struct qed_dev *cdev, struct qed_fcoe_tid *tasks)
799 if (cdev->flags & QED_FLAG_STORAGE_STARTED) {
800 DP_NOTICE(cdev, "fcoe already started;\n");
804 rc = qed_sp_fcoe_func_start(QED_LEADING_HWFN(cdev),
805 QED_SPQ_MODE_EBLOCK, NULL);
807 DP_NOTICE(cdev, "Failed to start fcoe\n");
811 cdev->flags |= QED_FLAG_STORAGE_STARTED;
812 hash_init(cdev->connections);
815 struct qed_tid_mem *tid_info = kzalloc(sizeof(*tid_info),
820 "Failed to allocate tasks information\n");
825 rc = qed_cxt_get_tid_mem_info(QED_LEADING_HWFN(cdev), tid_info);
827 DP_NOTICE(cdev, "Failed to gather task information\n");
833 /* Fill task information */
834 tasks->size = tid_info->tid_size;
835 tasks->num_tids_per_block = tid_info->num_tids_per_block;
836 memcpy(tasks->blocks, tid_info->blocks,
837 MAX_TID_BLOCKS_FCOE * sizeof(u8 *));
845 static int qed_fcoe_acquire_conn(struct qed_dev *cdev,
847 u32 *fw_cid, void __iomem **p_doorbell)
849 struct qed_hash_fcoe_con *hash_con;
852 /* Allocate a hashed connection */
853 hash_con = kzalloc(sizeof(*hash_con), GFP_KERNEL);
855 DP_NOTICE(cdev, "Failed to allocate hashed connection\n");
859 /* Acquire the connection */
860 rc = qed_fcoe_acquire_connection(QED_LEADING_HWFN(cdev), NULL,
863 DP_NOTICE(cdev, "Failed to acquire Connection\n");
868 /* Added the connection to hash table */
869 *handle = hash_con->con->icid;
870 *fw_cid = hash_con->con->fw_cid;
871 hash_add(cdev->connections, &hash_con->node, *handle);
874 *p_doorbell = qed_fcoe_get_db_addr(QED_LEADING_HWFN(cdev),
880 static int qed_fcoe_release_conn(struct qed_dev *cdev, u32 handle)
882 struct qed_hash_fcoe_con *hash_con;
884 hash_con = qed_fcoe_get_hash(cdev, handle);
886 DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
891 hlist_del(&hash_con->node);
892 qed_fcoe_release_connection(QED_LEADING_HWFN(cdev), hash_con->con);
898 static int qed_fcoe_offload_conn(struct qed_dev *cdev,
900 struct qed_fcoe_params_offload *conn_info)
902 struct qed_hash_fcoe_con *hash_con;
903 struct qed_fcoe_conn *con;
905 hash_con = qed_fcoe_get_hash(cdev, handle);
907 DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
912 /* Update the connection with information from the params */
915 con->sq_pbl_addr = conn_info->sq_pbl_addr;
916 con->sq_curr_page_addr = conn_info->sq_curr_page_addr;
917 con->sq_next_page_addr = conn_info->sq_next_page_addr;
918 con->tx_max_fc_pay_len = conn_info->tx_max_fc_pay_len;
919 con->e_d_tov_timer_val = conn_info->e_d_tov_timer_val;
920 con->rec_tov_timer_val = conn_info->rec_tov_timer_val;
921 con->rx_max_fc_pay_len = conn_info->rx_max_fc_pay_len;
922 con->vlan_tag = conn_info->vlan_tag;
923 con->max_conc_seqs_c3 = conn_info->max_conc_seqs_c3;
924 con->flags = conn_info->flags;
925 con->def_q_idx = conn_info->def_q_idx;
927 con->src_mac_addr_hi = (conn_info->src_mac[5] << 8) |
928 conn_info->src_mac[4];
929 con->src_mac_addr_mid = (conn_info->src_mac[3] << 8) |
930 conn_info->src_mac[2];
931 con->src_mac_addr_lo = (conn_info->src_mac[1] << 8) |
932 conn_info->src_mac[0];
933 con->dst_mac_addr_hi = (conn_info->dst_mac[5] << 8) |
934 conn_info->dst_mac[4];
935 con->dst_mac_addr_mid = (conn_info->dst_mac[3] << 8) |
936 conn_info->dst_mac[2];
937 con->dst_mac_addr_lo = (conn_info->dst_mac[1] << 8) |
938 conn_info->dst_mac[0];
940 con->s_id.addr_hi = conn_info->s_id.addr_hi;
941 con->s_id.addr_mid = conn_info->s_id.addr_mid;
942 con->s_id.addr_lo = conn_info->s_id.addr_lo;
943 con->d_id.addr_hi = conn_info->d_id.addr_hi;
944 con->d_id.addr_mid = conn_info->d_id.addr_mid;
945 con->d_id.addr_lo = conn_info->d_id.addr_lo;
947 return qed_sp_fcoe_conn_offload(QED_LEADING_HWFN(cdev), con,
948 QED_SPQ_MODE_EBLOCK, NULL);
951 static int qed_fcoe_destroy_conn(struct qed_dev *cdev,
952 u32 handle, dma_addr_t terminate_params)
954 struct qed_hash_fcoe_con *hash_con;
955 struct qed_fcoe_conn *con;
957 hash_con = qed_fcoe_get_hash(cdev, handle);
959 DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
964 /* Update the connection with information from the params */
966 con->terminate_params = terminate_params;
968 return qed_sp_fcoe_conn_destroy(QED_LEADING_HWFN(cdev), con,
969 QED_SPQ_MODE_EBLOCK, NULL);
972 static int qed_fcoe_stats(struct qed_dev *cdev, struct qed_fcoe_stats *stats)
974 return qed_fcoe_get_stats(QED_LEADING_HWFN(cdev), stats);
977 void qed_get_protocol_stats_fcoe(struct qed_dev *cdev,
978 struct qed_mcp_fcoe_stats *stats)
980 struct qed_fcoe_stats proto_stats;
982 /* Retrieve FW statistics */
983 memset(&proto_stats, 0, sizeof(proto_stats));
984 if (qed_fcoe_stats(cdev, &proto_stats)) {
985 DP_VERBOSE(cdev, QED_MSG_STORAGE,
986 "Failed to collect FCoE statistics\n");
990 /* Translate FW statistics into struct */
991 stats->rx_pkts = proto_stats.fcoe_rx_data_pkt_cnt +
992 proto_stats.fcoe_rx_xfer_pkt_cnt +
993 proto_stats.fcoe_rx_other_pkt_cnt;
994 stats->tx_pkts = proto_stats.fcoe_tx_data_pkt_cnt +
995 proto_stats.fcoe_tx_xfer_pkt_cnt +
996 proto_stats.fcoe_tx_other_pkt_cnt;
997 stats->fcs_err = proto_stats.fcoe_silent_drop_pkt_crc_error_cnt;
999 /* Request protocol driver to fill-in the rest */
1000 if (cdev->protocol_ops.fcoe && cdev->ops_cookie) {
1001 struct qed_fcoe_cb_ops *ops = cdev->protocol_ops.fcoe;
1002 void *cookie = cdev->ops_cookie;
1004 if (ops->get_login_failures)
1005 stats->login_failure = ops->get_login_failures(cookie);
1009 static const struct qed_fcoe_ops qed_fcoe_ops_pass = {
1010 .common = &qed_common_ops_pass,
1011 .ll2 = &qed_ll2_ops_pass,
1012 .fill_dev_info = &qed_fill_fcoe_dev_info,
1013 .start = &qed_fcoe_start,
1014 .stop = &qed_fcoe_stop,
1015 .register_ops = &qed_register_fcoe_ops,
1016 .acquire_conn = &qed_fcoe_acquire_conn,
1017 .release_conn = &qed_fcoe_release_conn,
1018 .offload_conn = &qed_fcoe_offload_conn,
1019 .destroy_conn = &qed_fcoe_destroy_conn,
1020 .get_stats = &qed_fcoe_stats,
1023 const struct qed_fcoe_ops *qed_get_fcoe_ops(void)
1025 return &qed_fcoe_ops_pass;
1027 EXPORT_SYMBOL(qed_get_fcoe_ops);
1029 void qed_put_fcoe_ops(void)
1032 EXPORT_SYMBOL(qed_put_fcoe_ops);