drivers/net/ethernet/qlogic/qed/qed_fcoe.c

   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
  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__
  52 #include "qed.h"
  53 #include "qed_cxt.h"
  54 #include "qed_dev_api.h"
  55 #include "qed_fcoe.h"
  56 #include "qed_hsi.h"
  57 #include "qed_hw.h"
  58 #include "qed_int.h"
  59 #include "qed_ll2.h"
  60 #include "qed_mcp.h"
  61 #include "qed_reg_addr.h"
  62 #include "qed_sp.h"
  63 #include "qed_sriov.h"
  64 #include <linux/qed/qed_fcoe_if.h>
  65
  66 struct qed_fcoe_conn {
  67         struct list_head list_entry;
  68         bool free_on_delete;
  69
  70         u16 conn_id;
  71         u32 icid;
  72         u32 fw_cid;
  73         u8 layer_code;
  74
  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];
  86
  87         dma_addr_t terminate_params;
  88
  89         u16 dst_mac_addr_lo;
  90         u16 dst_mac_addr_mid;
  91         u16 dst_mac_addr_hi;
  92         u16 src_mac_addr_lo;
  93         u16 src_mac_addr_mid;
  94         u16 src_mac_addr_hi;
  95
  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;
 100         u16 vlan_tag;
 101         u16 physical_q0;
 102
 103         struct fc_addr_nw s_id;
 104         u8 max_conc_seqs_c3;
 105         struct fc_addr_nw d_id;
 106         u8 flags;
 107         u8 def_q_idx;
 108 };
 109
 110 static int
 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)
 114 {
 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 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;
 122         u32 dummy_cid;
 123         int rc = 0;
 124         u16 tmp;
 125         u8 i;
 126
 127         /* Get SPQ entry */
 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;
 133
 134         rc = qed_sp_init_request(p_hwfn, &p_ent,
 135                                  FCOE_RAMROD_CMD_ID_INIT_FUNC,
 136                                  PROTOCOLID_FCOE, &init_data);
 137         if (rc)
 138                 return rc;
 139
 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;
 143
 144         p_data->mtu = cpu_to_le16(fcoe_pf_params->mtu);
 145         tmp = cpu_to_le16(fcoe_pf_params->sq_num_pbl_pages);
 146         p_data->sq_num_pages_in_pbl = tmp;
 147
 148         rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_FCOE, &dummy_cid);
 149         if (rc)
 150                 return rc;
 151
 152         cxt_info.iid = dummy_cid;
 153         rc = qed_cxt_get_cid_info(p_hwfn, &cxt_info);
 154         if (rc) {
 155                 DP_NOTICE(p_hwfn, "Cannot find context info for dummy cid=%d\n",
 156                           dummy_cid);
 157                 return rc;
 158         }
 159         p_cxt = cxt_info.p_cxt;
 160         SET_FIELD(p_cxt->tstorm_ag_context.flags3,
 161                   TSTORM_FCOE_CONN_AG_CTX_DUMMY_TIMER_CF_EN, 1);
 162
 163         fcoe_pf_params->dummy_icid = (u16)dummy_cid;
 164
 165         tmp = cpu_to_le16(fcoe_pf_params->num_tasks);
 166         p_data->func_params.num_tasks = tmp;
 167         p_data->func_params.log_page_size = fcoe_pf_params->log_page_size;
 168         p_data->func_params.debug_mode = fcoe_pf_params->debug_mode;
 169
 170         DMA_REGPAIR_LE(p_data->q_params.glbl_q_params_addr,
 171                        fcoe_pf_params->glbl_q_params_addr);
 172
 173         tmp = cpu_to_le16(fcoe_pf_params->cq_num_entries);
 174         p_data->q_params.cq_num_entries = tmp;
 175
 176         tmp = cpu_to_le16(fcoe_pf_params->cmdq_num_entries);
 177         p_data->q_params.cmdq_num_entries = tmp;
 178
 179         tmp = fcoe_pf_params->num_cqs;
 180         p_data->q_params.num_queues = (u8)tmp;
 181
 182         tmp = (u16)p_hwfn->hw_info.resc_start[QED_CMDQS_CQS];
 183         p_data->q_params.queue_relative_offset = (u8)tmp;
 184
 185         for (i = 0; i < fcoe_pf_params->num_cqs; i++) {
 186                 tmp = cpu_to_le16(p_hwfn->sbs_info[i]->igu_sb_id);
 187                 p_data->q_params.cq_cmdq_sb_num_arr[i] = tmp;
 188         }
 189
 190         p_data->q_params.cq_sb_pi = fcoe_pf_params->gl_rq_pi;
 191         p_data->q_params.cmdq_sb_pi = fcoe_pf_params->gl_cmd_pi;
 192
 193         p_data->q_params.bdq_resource_id = (u8)RESC_START(p_hwfn, QED_BDQ);
 194
 195         DMA_REGPAIR_LE(p_data->q_params.bdq_pbl_base_address[BDQ_ID_RQ],
 196                        fcoe_pf_params->bdq_pbl_base_addr[BDQ_ID_RQ]);
 197         p_data->q_params.bdq_pbl_num_entries[BDQ_ID_RQ] =
 198             fcoe_pf_params->bdq_pbl_num_entries[BDQ_ID_RQ];
 199         tmp = fcoe_pf_params->bdq_xoff_threshold[BDQ_ID_RQ];
 200         p_data->q_params.bdq_xoff_threshold[BDQ_ID_RQ] = cpu_to_le16(tmp);
 201         tmp = fcoe_pf_params->bdq_xon_threshold[BDQ_ID_RQ];
 202         p_data->q_params.bdq_xon_threshold[BDQ_ID_RQ] = cpu_to_le16(tmp);
 203
 204         DMA_REGPAIR_LE(p_data->q_params.bdq_pbl_base_address[BDQ_ID_IMM_DATA],
 205                        fcoe_pf_params->bdq_pbl_base_addr[BDQ_ID_IMM_DATA]);
 206         p_data->q_params.bdq_pbl_num_entries[BDQ_ID_IMM_DATA] =
 207             fcoe_pf_params->bdq_pbl_num_entries[BDQ_ID_IMM_DATA];
 208         tmp = fcoe_pf_params->bdq_xoff_threshold[BDQ_ID_IMM_DATA];
 209         p_data->q_params.bdq_xoff_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(tmp);
 210         tmp = fcoe_pf_params->bdq_xon_threshold[BDQ_ID_IMM_DATA];
 211         p_data->q_params.bdq_xon_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(tmp);
 212         tmp = fcoe_pf_params->rq_buffer_size;
 213         p_data->q_params.rq_buffer_size = cpu_to_le16(tmp);
 214
 215         if (fcoe_pf_params->is_target) {
 216                 SET_FIELD(p_data->q_params.q_validity,
 217                           SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
 218                 if (p_data->q_params.bdq_pbl_num_entries[BDQ_ID_IMM_DATA])
 219                         SET_FIELD(p_data->q_params.q_validity,
 220                                   SCSI_INIT_FUNC_QUEUES_IMM_DATA_VALID, 1);
 221                 SET_FIELD(p_data->q_params.q_validity,
 222                           SCSI_INIT_FUNC_QUEUES_CMD_VALID, 1);
 223         } else {
 224                 SET_FIELD(p_data->q_params.q_validity,
 225                           SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
 226         }
 227
 228         rc = qed_spq_post(p_hwfn, p_ent, NULL);
 229
 230         return rc;
 231 }
 232
 233 static int
 234 qed_sp_fcoe_conn_offload(struct qed_hwfn *p_hwfn,
 235                          struct qed_fcoe_conn *p_conn,
 236                          enum spq_mode comp_mode,
 237                          struct qed_spq_comp_cb *p_comp_addr)
 238 {
 239         struct fcoe_conn_offload_ramrod_params *p_ramrod = NULL;
 240         struct fcoe_conn_offload_ramrod_data *p_data;
 241         struct qed_spq_entry *p_ent = NULL;
 242         struct qed_sp_init_data init_data;
 243         u16 physical_q0, tmp;
 244         int rc;
 245
 246         /* Get SPQ entry */
 247         memset(&init_data, 0, sizeof(init_data));
 248         init_data.cid = p_conn->icid;
 249         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
 250         init_data.comp_mode = comp_mode;
 251         init_data.p_comp_data = p_comp_addr;
 252
 253         rc = qed_sp_init_request(p_hwfn, &p_ent,
 254                                  FCOE_RAMROD_CMD_ID_OFFLOAD_CONN,
 255                                  PROTOCOLID_FCOE, &init_data);
 256         if (rc)
 257                 return rc;
 258
 259         p_ramrod = &p_ent->ramrod.fcoe_conn_ofld;
 260         p_data = &p_ramrod->offload_ramrod_data;
 261
 262         /* Transmission PQ is the first of the PF */
 263         physical_q0 = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD);
 264         p_conn->physical_q0 = cpu_to_le16(physical_q0);
 265         p_data->physical_q0 = cpu_to_le16(physical_q0);
 266
 267         p_data->conn_id = cpu_to_le16(p_conn->conn_id);
 268         DMA_REGPAIR_LE(p_data->sq_pbl_addr, p_conn->sq_pbl_addr);
 269         DMA_REGPAIR_LE(p_data->sq_curr_page_addr, p_conn->sq_curr_page_addr);
 270         DMA_REGPAIR_LE(p_data->sq_next_page_addr, p_conn->sq_next_page_addr);
 271         DMA_REGPAIR_LE(p_data->xferq_pbl_addr, p_conn->xferq_pbl_addr);
 272         DMA_REGPAIR_LE(p_data->xferq_curr_page_addr, p_conn->xferq_addr[0]);
 273         DMA_REGPAIR_LE(p_data->xferq_next_page_addr, p_conn->xferq_addr[1]);
 274
 275         DMA_REGPAIR_LE(p_data->respq_pbl_addr, p_conn->confq_pbl_addr);
 276         DMA_REGPAIR_LE(p_data->respq_curr_page_addr, p_conn->confq_addr[0]);
 277         DMA_REGPAIR_LE(p_data->respq_next_page_addr, p_conn->confq_addr[1]);
 278
 279         p_data->dst_mac_addr_lo = cpu_to_le16(p_conn->dst_mac_addr_lo);
 280         p_data->dst_mac_addr_mid = cpu_to_le16(p_conn->dst_mac_addr_mid);
 281         p_data->dst_mac_addr_hi = cpu_to_le16(p_conn->dst_mac_addr_hi);
 282         p_data->src_mac_addr_lo = cpu_to_le16(p_conn->src_mac_addr_lo);
 283         p_data->src_mac_addr_mid = cpu_to_le16(p_conn->src_mac_addr_mid);
 284         p_data->src_mac_addr_hi = cpu_to_le16(p_conn->src_mac_addr_hi);
 285
 286         tmp = cpu_to_le16(p_conn->tx_max_fc_pay_len);
 287         p_data->tx_max_fc_pay_len = tmp;
 288         tmp = cpu_to_le16(p_conn->e_d_tov_timer_val);
 289         p_data->e_d_tov_timer_val = tmp;
 290         tmp = cpu_to_le16(p_conn->rec_tov_timer_val);
 291         p_data->rec_rr_tov_timer_val = tmp;
 292         tmp = cpu_to_le16(p_conn->rx_max_fc_pay_len);
 293         p_data->rx_max_fc_pay_len = tmp;
 294
 295         p_data->vlan_tag = cpu_to_le16(p_conn->vlan_tag);
 296         p_data->s_id.addr_hi = p_conn->s_id.addr_hi;
 297         p_data->s_id.addr_mid = p_conn->s_id.addr_mid;
 298         p_data->s_id.addr_lo = p_conn->s_id.addr_lo;
 299         p_data->max_conc_seqs_c3 = p_conn->max_conc_seqs_c3;
 300         p_data->d_id.addr_hi = p_conn->d_id.addr_hi;
 301         p_data->d_id.addr_mid = p_conn->d_id.addr_mid;
 302         p_data->d_id.addr_lo = p_conn->d_id.addr_lo;
 303         p_data->flags = p_conn->flags;
 304         p_data->def_q_idx = p_conn->def_q_idx;
 305
 306         return qed_spq_post(p_hwfn, p_ent, NULL);
 307 }
 308
 309 static int
 310 qed_sp_fcoe_conn_destroy(struct qed_hwfn *p_hwfn,
 311                          struct qed_fcoe_conn *p_conn,
 312                          enum spq_mode comp_mode,
 313                          struct qed_spq_comp_cb *p_comp_addr)
 314 {
 315         struct fcoe_conn_terminate_ramrod_params *p_ramrod = NULL;
 316         struct qed_spq_entry *p_ent = NULL;
 317         struct qed_sp_init_data init_data;
 318         int rc = 0;
 319
 320         /* Get SPQ entry */
 321         memset(&init_data, 0, sizeof(init_data));
 322         init_data.cid = p_conn->icid;
 323         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
 324         init_data.comp_mode = comp_mode;
 325         init_data.p_comp_data = p_comp_addr;
 326
 327         rc = qed_sp_init_request(p_hwfn, &p_ent,
 328                                  FCOE_RAMROD_CMD_ID_TERMINATE_CONN,
 329                                  PROTOCOLID_FCOE, &init_data);
 330         if (rc)
 331                 return rc;
 332
 333         p_ramrod = &p_ent->ramrod.fcoe_conn_terminate;
 334         DMA_REGPAIR_LE(p_ramrod->terminate_ramrod_data.terminate_params_addr,
 335                        p_conn->terminate_params);
 336
 337         return qed_spq_post(p_hwfn, p_ent, NULL);
 338 }
 339
 340 static int
 341 qed_sp_fcoe_func_stop(struct qed_hwfn *p_hwfn,
 342                       struct qed_ptt *p_ptt,
 343                       enum spq_mode comp_mode,
 344                       struct qed_spq_comp_cb *p_comp_addr)
 345 {
 346         struct qed_spq_entry *p_ent = NULL;
 347         struct qed_sp_init_data init_data;
 348         u32 active_segs = 0;
 349         int rc = 0;
 350
 351         /* Get SPQ entry */
 352         memset(&init_data, 0, sizeof(init_data));
 353         init_data.cid = p_hwfn->pf_params.fcoe_pf_params.dummy_icid;
 354         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
 355         init_data.comp_mode = comp_mode;
 356         init_data.p_comp_data = p_comp_addr;
 357
 358         rc = qed_sp_init_request(p_hwfn, &p_ent,
 359                                  FCOE_RAMROD_CMD_ID_DESTROY_FUNC,
 360                                  PROTOCOLID_FCOE, &init_data);
 361         if (rc)
 362                 return rc;
 363
 364         active_segs = qed_rd(p_hwfn, p_ptt, TM_REG_PF_ENABLE_TASK);
 365         active_segs &= ~BIT(QED_CXT_FCOE_TID_SEG);
 366         qed_wr(p_hwfn, p_ptt, TM_REG_PF_ENABLE_TASK, active_segs);
 367
 368         return qed_spq_post(p_hwfn, p_ent, NULL);
 369 }
 370
 371 static int
 372 qed_fcoe_allocate_connection(struct qed_hwfn *p_hwfn,
 373                              struct qed_fcoe_conn **p_out_conn)
 374 {
 375         struct qed_fcoe_conn *p_conn = NULL;
 376         void *p_addr;
 377         u32 i;
 378
 379         spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
 380         if (!list_empty(&p_hwfn->p_fcoe_info->free_list))
 381                 p_conn =
 382                     list_first_entry(&p_hwfn->p_fcoe_info->free_list,
 383                                      struct qed_fcoe_conn, list_entry);
 384         if (p_conn) {
 385                 list_del(&p_conn->list_entry);
 386                 spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
 387                 *p_out_conn = p_conn;
 388                 return 0;
 389         }
 390         spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
 391
 392         p_conn = kzalloc(sizeof(*p_conn), GFP_KERNEL);
 393         if (!p_conn)
 394                 return -ENOMEM;
 395
 396         p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
 397                                     QED_CHAIN_PAGE_SIZE,
 398                                     &p_conn->xferq_pbl_addr, GFP_KERNEL);
 399         if (!p_addr)
 400                 goto nomem_pbl_xferq;
 401         p_conn->xferq_pbl_addr_virt_addr = p_addr;
 402
 403         for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++) {
 404                 p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
 405                                             QED_CHAIN_PAGE_SIZE,
 406                                             &p_conn->xferq_addr[i], GFP_KERNEL);
 407                 if (!p_addr)
 408                         goto nomem_xferq;
 409                 p_conn->xferq_addr_virt_addr[i] = p_addr;
 410
 411                 p_addr = p_conn->xferq_pbl_addr_virt_addr;
 412                 ((dma_addr_t *)p_addr)[i] = p_conn->xferq_addr[i];
 413         }
 414
 415         p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
 416                                     QED_CHAIN_PAGE_SIZE,
 417                                     &p_conn->confq_pbl_addr, GFP_KERNEL);
 418         if (!p_addr)
 419                 goto nomem_xferq;
 420         p_conn->confq_pbl_addr_virt_addr = p_addr;
 421
 422         for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++) {
 423                 p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
 424                                             QED_CHAIN_PAGE_SIZE,
 425                                             &p_conn->confq_addr[i], GFP_KERNEL);
 426                 if (!p_addr)
 427                         goto nomem_confq;
 428                 p_conn->confq_addr_virt_addr[i] = p_addr;
 429
 430                 p_addr = p_conn->confq_pbl_addr_virt_addr;
 431                 ((dma_addr_t *)p_addr)[i] = p_conn->confq_addr[i];
 432         }
 433
 434         p_conn->free_on_delete = true;
 435         *p_out_conn = p_conn;
 436         return 0;
 437
 438 nomem_confq:
 439         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 440                           QED_CHAIN_PAGE_SIZE,
 441                           p_conn->confq_pbl_addr_virt_addr,
 442                           p_conn->confq_pbl_addr);
 443         for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++)
 444                 if (p_conn->confq_addr_virt_addr[i])
 445                         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 446                                           QED_CHAIN_PAGE_SIZE,
 447                                           p_conn->confq_addr_virt_addr[i],
 448                                           p_conn->confq_addr[i]);
 449 nomem_xferq:
 450         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 451                           QED_CHAIN_PAGE_SIZE,
 452                           p_conn->xferq_pbl_addr_virt_addr,
 453                           p_conn->xferq_pbl_addr);
 454         for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++)
 455                 if (p_conn->xferq_addr_virt_addr[i])
 456                         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 457                                           QED_CHAIN_PAGE_SIZE,
 458                                           p_conn->xferq_addr_virt_addr[i],
 459                                           p_conn->xferq_addr[i]);
 460 nomem_pbl_xferq:
 461         kfree(p_conn);
 462         return -ENOMEM;
 463 }
 464
 465 static void qed_fcoe_free_connection(struct qed_hwfn *p_hwfn,
 466                                      struct qed_fcoe_conn *p_conn)
 467 {
 468         u32 i;
 469
 470         if (!p_conn)
 471                 return;
 472
 473         if (p_conn->confq_pbl_addr_virt_addr)
 474                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 475                                   QED_CHAIN_PAGE_SIZE,
 476                                   p_conn->confq_pbl_addr_virt_addr,
 477                                   p_conn->confq_pbl_addr);
 478
 479         for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++) {
 480                 if (!p_conn->confq_addr_virt_addr[i])
 481                         continue;
 482                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 483                                   QED_CHAIN_PAGE_SIZE,
 484                                   p_conn->confq_addr_virt_addr[i],
 485                                   p_conn->confq_addr[i]);
 486         }
 487
 488         if (p_conn->xferq_pbl_addr_virt_addr)
 489                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 490                                   QED_CHAIN_PAGE_SIZE,
 491                                   p_conn->xferq_pbl_addr_virt_addr,
 492                                   p_conn->xferq_pbl_addr);
 493
 494         for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++) {
 495                 if (!p_conn->xferq_addr_virt_addr[i])
 496                         continue;
 497                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 498                                   QED_CHAIN_PAGE_SIZE,
 499                                   p_conn->xferq_addr_virt_addr[i],
 500                                   p_conn->xferq_addr[i]);
 501         }
 502         kfree(p_conn);
 503 }
 504
 505 static void __iomem *qed_fcoe_get_db_addr(struct qed_hwfn *p_hwfn, u32 cid)
 506 {
 507         return (u8 __iomem *)p_hwfn->doorbells +
 508                qed_db_addr(cid, DQ_DEMS_LEGACY);
 509 }
 510
 511 static void __iomem *qed_fcoe_get_primary_bdq_prod(struct qed_hwfn *p_hwfn,
 512                                                    u8 bdq_id)
 513 {
 514         if (RESC_NUM(p_hwfn, QED_BDQ)) {
 515                 return (u8 __iomem *)p_hwfn->regview +
 516                        GTT_BAR0_MAP_REG_MSDM_RAM +
 517                        MSTORM_SCSI_BDQ_EXT_PROD_OFFSET(RESC_START(p_hwfn,
 518                                                                   QED_BDQ),
 519                                                        bdq_id);
 520         } else {
 521                 DP_NOTICE(p_hwfn, "BDQ is not allocated!\n");
 522                 return NULL;
 523         }
 524 }
 525
 526 static void __iomem *qed_fcoe_get_secondary_bdq_prod(struct qed_hwfn *p_hwfn,
 527                                                      u8 bdq_id)
 528 {
 529         if (RESC_NUM(p_hwfn, QED_BDQ)) {
 530                 return (u8 __iomem *)p_hwfn->regview +
 531                        GTT_BAR0_MAP_REG_TSDM_RAM +
 532                        TSTORM_SCSI_BDQ_EXT_PROD_OFFSET(RESC_START(p_hwfn,
 533                                                                   QED_BDQ),
 534                                                        bdq_id);
 535         } else {
 536                 DP_NOTICE(p_hwfn, "BDQ is not allocated!\n");
 537                 return NULL;
 538         }
 539 }
 540
 541 int qed_fcoe_alloc(struct qed_hwfn *p_hwfn)
 542 {
 543         struct qed_fcoe_info *p_fcoe_info;
 544
 545         /* Allocate LL2's set struct */
 546         p_fcoe_info = kzalloc(sizeof(*p_fcoe_info), GFP_KERNEL);
 547         if (!p_fcoe_info) {
 548                 DP_NOTICE(p_hwfn, "Failed to allocate qed_fcoe_info'\n");
 549                 return -ENOMEM;
 550         }
 551         INIT_LIST_HEAD(&p_fcoe_info->free_list);
 552
 553         p_hwfn->p_fcoe_info = p_fcoe_info;
 554         return 0;
 555 }
 556
 557 void qed_fcoe_setup(struct qed_hwfn *p_hwfn)
 558 {
 559         struct fcoe_task_context *p_task_ctx = NULL;
 560         int rc;
 561         u32 i;
 562
 563         spin_lock_init(&p_hwfn->p_fcoe_info->lock);
 564         for (i = 0; i < p_hwfn->pf_params.fcoe_pf_params.num_tasks; i++) {
 565                 rc = qed_cxt_get_task_ctx(p_hwfn, i,
 566                                           QED_CTX_WORKING_MEM,
 567                                           (void **)&p_task_ctx);
 568                 if (rc)
 569                         continue;
 570
 571                 memset(p_task_ctx, 0, sizeof(struct fcoe_task_context));
 572                 SET_FIELD(p_task_ctx->timer_context.logical_client_0,
 573                           TIMERS_CONTEXT_VALIDLC0, 1);
 574                 SET_FIELD(p_task_ctx->timer_context.logical_client_1,
 575                           TIMERS_CONTEXT_VALIDLC1, 1);
 576                 SET_FIELD(p_task_ctx->tstorm_ag_context.flags0,
 577                           TSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE, 1);
 578         }
 579 }
 580
 581 void qed_fcoe_free(struct qed_hwfn *p_hwfn)
 582 {
 583         struct qed_fcoe_conn *p_conn = NULL;
 584
 585         if (!p_hwfn->p_fcoe_info)
 586                 return;
 587
 588         while (!list_empty(&p_hwfn->p_fcoe_info->free_list)) {
 589                 p_conn = list_first_entry(&p_hwfn->p_fcoe_info->free_list,
 590                                           struct qed_fcoe_conn, list_entry);
 591                 if (!p_conn)
 592                         break;
 593                 list_del(&p_conn->list_entry);
 594                 qed_fcoe_free_connection(p_hwfn, p_conn);
 595         }
 596
 597         kfree(p_hwfn->p_fcoe_info);
 598         p_hwfn->p_fcoe_info = NULL;
 599 }
 600
 601 static int
 602 qed_fcoe_acquire_connection(struct qed_hwfn *p_hwfn,
 603                             struct qed_fcoe_conn *p_in_conn,
 604                             struct qed_fcoe_conn **p_out_conn)
 605 {
 606         struct qed_fcoe_conn *p_conn = NULL;
 607         int rc = 0;
 608         u32 icid;
 609
 610         spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
 611         rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_FCOE, &icid);
 612         spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
 613         if (rc)
 614                 return rc;
 615
 616         /* Use input connection [if provided] or allocate a new one */
 617         if (p_in_conn) {
 618                 p_conn = p_in_conn;
 619         } else {
 620                 rc = qed_fcoe_allocate_connection(p_hwfn, &p_conn);
 621                 if (rc) {
 622                         spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
 623                         qed_cxt_release_cid(p_hwfn, icid);
 624                         spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
 625                         return rc;
 626                 }
 627         }
 628
 629         p_conn->icid = icid;
 630         p_conn->fw_cid = (p_hwfn->hw_info.opaque_fid << 16) | icid;
 631         *p_out_conn = p_conn;
 632
 633         return rc;
 634 }
 635
 636 static void qed_fcoe_release_connection(struct qed_hwfn *p_hwfn,
 637                                         struct qed_fcoe_conn *p_conn)
 638 {
 639         spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
 640         list_add_tail(&p_conn->list_entry, &p_hwfn->p_fcoe_info->free_list);
 641         qed_cxt_release_cid(p_hwfn, p_conn->icid);
 642         spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
 643 }
 644
 645 static void _qed_fcoe_get_tstats(struct qed_hwfn *p_hwfn,
 646                                  struct qed_ptt *p_ptt,
 647                                  struct qed_fcoe_stats *p_stats)
 648 {
 649         struct fcoe_rx_stat tstats;
 650         u32 tstats_addr;
 651
 652         memset(&tstats, 0, sizeof(tstats));
 653         tstats_addr = BAR0_MAP_REG_TSDM_RAM +
 654             TSTORM_FCOE_RX_STATS_OFFSET(p_hwfn->rel_pf_id);
 655         qed_memcpy_from(p_hwfn, p_ptt, &tstats, tstats_addr, sizeof(tstats));
 656
 657         p_stats->fcoe_rx_byte_cnt = HILO_64_REGPAIR(tstats.fcoe_rx_byte_cnt);
 658         p_stats->fcoe_rx_data_pkt_cnt =
 659             HILO_64_REGPAIR(tstats.fcoe_rx_data_pkt_cnt);
 660         p_stats->fcoe_rx_xfer_pkt_cnt =
 661             HILO_64_REGPAIR(tstats.fcoe_rx_xfer_pkt_cnt);
 662         p_stats->fcoe_rx_other_pkt_cnt =
 663             HILO_64_REGPAIR(tstats.fcoe_rx_other_pkt_cnt);
 664
 665         p_stats->fcoe_silent_drop_pkt_cmdq_full_cnt =
 666             le32_to_cpu(tstats.fcoe_silent_drop_pkt_cmdq_full_cnt);
 667         p_stats->fcoe_silent_drop_pkt_rq_full_cnt =
 668             le32_to_cpu(tstats.fcoe_silent_drop_pkt_rq_full_cnt);
 669         p_stats->fcoe_silent_drop_pkt_crc_error_cnt =
 670             le32_to_cpu(tstats.fcoe_silent_drop_pkt_crc_error_cnt);
 671         p_stats->fcoe_silent_drop_pkt_task_invalid_cnt =
 672             le32_to_cpu(tstats.fcoe_silent_drop_pkt_task_invalid_cnt);
 673         p_stats->fcoe_silent_drop_total_pkt_cnt =
 674             le32_to_cpu(tstats.fcoe_silent_drop_total_pkt_cnt);
 675 }
 676
 677 static void _qed_fcoe_get_pstats(struct qed_hwfn *p_hwfn,
 678                                  struct qed_ptt *p_ptt,
 679                                  struct qed_fcoe_stats *p_stats)
 680 {
 681         struct fcoe_tx_stat pstats;
 682         u32 pstats_addr;
 683
 684         memset(&pstats, 0, sizeof(pstats));
 685         pstats_addr = BAR0_MAP_REG_PSDM_RAM +
 686             PSTORM_FCOE_TX_STATS_OFFSET(p_hwfn->rel_pf_id);
 687         qed_memcpy_from(p_hwfn, p_ptt, &pstats, pstats_addr, sizeof(pstats));
 688
 689         p_stats->fcoe_tx_byte_cnt = HILO_64_REGPAIR(pstats.fcoe_tx_byte_cnt);
 690         p_stats->fcoe_tx_data_pkt_cnt =
 691             HILO_64_REGPAIR(pstats.fcoe_tx_data_pkt_cnt);
 692         p_stats->fcoe_tx_xfer_pkt_cnt =
 693             HILO_64_REGPAIR(pstats.fcoe_tx_xfer_pkt_cnt);
 694         p_stats->fcoe_tx_other_pkt_cnt =
 695             HILO_64_REGPAIR(pstats.fcoe_tx_other_pkt_cnt);
 696 }
 697
 698 static int qed_fcoe_get_stats(struct qed_hwfn *p_hwfn,
 699                               struct qed_fcoe_stats *p_stats)
 700 {
 701         struct qed_ptt *p_ptt;
 702
 703         memset(p_stats, 0, sizeof(*p_stats));
 704
 705         p_ptt = qed_ptt_acquire(p_hwfn);
 706
 707         if (!p_ptt) {
 708                 DP_ERR(p_hwfn, "Failed to acquire ptt\n");
 709                 return -EINVAL;
 710         }
 711
 712         _qed_fcoe_get_tstats(p_hwfn, p_ptt, p_stats);
 713         _qed_fcoe_get_pstats(p_hwfn, p_ptt, p_stats);
 714
 715         qed_ptt_release(p_hwfn, p_ptt);
 716
 717         return 0;
 718 }
 719
 720 struct qed_hash_fcoe_con {
 721         struct hlist_node node;
 722         struct qed_fcoe_conn *con;
 723 };
 724
 725 static int qed_fill_fcoe_dev_info(struct qed_dev *cdev,
 726                                   struct qed_dev_fcoe_info *info)
 727 {
 728         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
 729         int rc;
 730
 731         memset(info, 0, sizeof(*info));
 732         rc = qed_fill_dev_info(cdev, &info->common);
 733
 734         info->primary_dbq_rq_addr =
 735             qed_fcoe_get_primary_bdq_prod(hwfn, BDQ_ID_RQ);
 736         info->secondary_bdq_rq_addr =
 737             qed_fcoe_get_secondary_bdq_prod(hwfn, BDQ_ID_RQ);
 738
 739         return rc;
 740 }
 741
 742 static void qed_register_fcoe_ops(struct qed_dev *cdev,
 743                                   struct qed_fcoe_cb_ops *ops, void *cookie)
 744 {
 745         cdev->protocol_ops.fcoe = ops;
 746         cdev->ops_cookie = cookie;
 747 }
 748
 749 static struct qed_hash_fcoe_con *qed_fcoe_get_hash(struct qed_dev *cdev,
 750                                                    u32 handle)
 751 {
 752         struct qed_hash_fcoe_con *hash_con = NULL;
 753
 754         if (!(cdev->flags & QED_FLAG_STORAGE_STARTED))
 755                 return NULL;
 756
 757         hash_for_each_possible(cdev->connections, hash_con, node, handle) {
 758                 if (hash_con->con->icid == handle)
 759                         break;
 760         }
 761
 762         if (!hash_con || (hash_con->con->icid != handle))
 763                 return NULL;
 764
 765         return hash_con;
 766 }
 767
 768 static int qed_fcoe_stop(struct qed_dev *cdev)
 769 {
 770         struct qed_ptt *p_ptt;
 771         int rc;
 772
 773         if (!(cdev->flags & QED_FLAG_STORAGE_STARTED)) {
 774                 DP_NOTICE(cdev, "fcoe already stopped\n");
 775                 return 0;
 776         }
 777
 778         if (!hash_empty(cdev->connections)) {
 779                 DP_NOTICE(cdev,
 780                           "Can't stop fcoe - not all connections were returned\n");
 781                 return -EINVAL;
 782         }
 783
 784         p_ptt = qed_ptt_acquire(QED_LEADING_HWFN(cdev));
 785         if (!p_ptt)
 786                 return -EAGAIN;
 787
 788         /* Stop the fcoe */
 789         rc = qed_sp_fcoe_func_stop(QED_LEADING_HWFN(cdev), p_ptt,
 790                                    QED_SPQ_MODE_EBLOCK, NULL);
 791         cdev->flags &= ~QED_FLAG_STORAGE_STARTED;
 792         qed_ptt_release(QED_LEADING_HWFN(cdev), p_ptt);
 793
 794         return rc;
 795 }
 796
 797 static int qed_fcoe_start(struct qed_dev *cdev, struct qed_fcoe_tid *tasks)
 798 {
 799         int rc;
 800
 801         if (cdev->flags & QED_FLAG_STORAGE_STARTED) {
 802                 DP_NOTICE(cdev, "fcoe already started;\n");
 803                 return 0;
 804         }
 805
 806         rc = qed_sp_fcoe_func_start(QED_LEADING_HWFN(cdev),
 807                                     QED_SPQ_MODE_EBLOCK, NULL);
 808         if (rc) {
 809                 DP_NOTICE(cdev, "Failed to start fcoe\n");
 810                 return rc;
 811         }
 812
 813         cdev->flags |= QED_FLAG_STORAGE_STARTED;
 814         hash_init(cdev->connections);
 815
 816         if (tasks) {
 817                 struct qed_tid_mem *tid_info = kzalloc(sizeof(*tid_info),
 818                                                        GFP_ATOMIC);
 819
 820                 if (!tid_info) {
 821                         DP_NOTICE(cdev,
 822                                   "Failed to allocate tasks information\n");
 823                         qed_fcoe_stop(cdev);
 824                         return -ENOMEM;
 825                 }
 826
 827                 rc = qed_cxt_get_tid_mem_info(QED_LEADING_HWFN(cdev), tid_info);
 828                 if (rc) {
 829                         DP_NOTICE(cdev, "Failed to gather task information\n");
 830                         qed_fcoe_stop(cdev);
 831                         kfree(tid_info);
 832                         return rc;
 833                 }
 834
 835                 /* Fill task information */
 836                 tasks->size = tid_info->tid_size;
 837                 tasks->num_tids_per_block = tid_info->num_tids_per_block;
 838                 memcpy(tasks->blocks, tid_info->blocks,
 839                        MAX_TID_BLOCKS_FCOE * sizeof(u8 *));
 840
 841                 kfree(tid_info);
 842         }
 843
 844         return 0;
 845 }
 846
 847 static int qed_fcoe_acquire_conn(struct qed_dev *cdev,
 848                                  u32 *handle,
 849                                  u32 *fw_cid, void __iomem **p_doorbell)
 850 {
 851         struct qed_hash_fcoe_con *hash_con;
 852         int rc;
 853
 854         /* Allocate a hashed connection */
 855         hash_con = kzalloc(sizeof(*hash_con), GFP_KERNEL);
 856         if (!hash_con) {
 857                 DP_NOTICE(cdev, "Failed to allocate hashed connection\n");
 858                 return -ENOMEM;
 859         }
 860
 861         /* Acquire the connection */
 862         rc = qed_fcoe_acquire_connection(QED_LEADING_HWFN(cdev), NULL,
 863                                          &hash_con->con);
 864         if (rc) {
 865                 DP_NOTICE(cdev, "Failed to acquire Connection\n");
 866                 kfree(hash_con);
 867                 return rc;
 868         }
 869
 870         /* Added the connection to hash table */
 871         *handle = hash_con->con->icid;
 872         *fw_cid = hash_con->con->fw_cid;
 873         hash_add(cdev->connections, &hash_con->node, *handle);
 874
 875         if (p_doorbell)
 876                 *p_doorbell = qed_fcoe_get_db_addr(QED_LEADING_HWFN(cdev),
 877                                                    *handle);
 878
 879         return 0;
 880 }
 881
 882 static int qed_fcoe_release_conn(struct qed_dev *cdev, u32 handle)
 883 {
 884         struct qed_hash_fcoe_con *hash_con;
 885
 886         hash_con = qed_fcoe_get_hash(cdev, handle);
 887         if (!hash_con) {
 888                 DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
 889                           handle);
 890                 return -EINVAL;
 891         }
 892
 893         hlist_del(&hash_con->node);
 894         qed_fcoe_release_connection(QED_LEADING_HWFN(cdev), hash_con->con);
 895         kfree(hash_con);
 896
 897         return 0;
 898 }
 899
 900 static int qed_fcoe_offload_conn(struct qed_dev *cdev,
 901                                  u32 handle,
 902                                  struct qed_fcoe_params_offload *conn_info)
 903 {
 904         struct qed_hash_fcoe_con *hash_con;
 905         struct qed_fcoe_conn *con;
 906
 907         hash_con = qed_fcoe_get_hash(cdev, handle);
 908         if (!hash_con) {
 909                 DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
 910                           handle);
 911                 return -EINVAL;
 912         }
 913
 914         /* Update the connection with information from the params */
 915         con = hash_con->con;
 916
 917         con->sq_pbl_addr = conn_info->sq_pbl_addr;
 918         con->sq_curr_page_addr = conn_info->sq_curr_page_addr;
 919         con->sq_next_page_addr = conn_info->sq_next_page_addr;
 920         con->tx_max_fc_pay_len = conn_info->tx_max_fc_pay_len;
 921         con->e_d_tov_timer_val = conn_info->e_d_tov_timer_val;
 922         con->rec_tov_timer_val = conn_info->rec_tov_timer_val;
 923         con->rx_max_fc_pay_len = conn_info->rx_max_fc_pay_len;
 924         con->vlan_tag = conn_info->vlan_tag;
 925         con->max_conc_seqs_c3 = conn_info->max_conc_seqs_c3;
 926         con->flags = conn_info->flags;
 927         con->def_q_idx = conn_info->def_q_idx;
 928
 929         con->src_mac_addr_hi = (conn_info->src_mac[5] << 8) |
 930             conn_info->src_mac[4];
 931         con->src_mac_addr_mid = (conn_info->src_mac[3] << 8) |
 932             conn_info->src_mac[2];
 933         con->src_mac_addr_lo = (conn_info->src_mac[1] << 8) |
 934             conn_info->src_mac[0];
 935         con->dst_mac_addr_hi = (conn_info->dst_mac[5] << 8) |
 936             conn_info->dst_mac[4];
 937         con->dst_mac_addr_mid = (conn_info->dst_mac[3] << 8) |
 938             conn_info->dst_mac[2];
 939         con->dst_mac_addr_lo = (conn_info->dst_mac[1] << 8) |
 940             conn_info->dst_mac[0];
 941
 942         con->s_id.addr_hi = conn_info->s_id.addr_hi;
 943         con->s_id.addr_mid = conn_info->s_id.addr_mid;
 944         con->s_id.addr_lo = conn_info->s_id.addr_lo;
 945         con->d_id.addr_hi = conn_info->d_id.addr_hi;
 946         con->d_id.addr_mid = conn_info->d_id.addr_mid;
 947         con->d_id.addr_lo = conn_info->d_id.addr_lo;
 948
 949         return qed_sp_fcoe_conn_offload(QED_LEADING_HWFN(cdev), con,
 950                                         QED_SPQ_MODE_EBLOCK, NULL);
 951 }
 952
 953 static int qed_fcoe_destroy_conn(struct qed_dev *cdev,
 954                                  u32 handle, dma_addr_t terminate_params)
 955 {
 956         struct qed_hash_fcoe_con *hash_con;
 957         struct qed_fcoe_conn *con;
 958
 959         hash_con = qed_fcoe_get_hash(cdev, handle);
 960         if (!hash_con) {
 961                 DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
 962                           handle);
 963                 return -EINVAL;
 964         }
 965
 966         /* Update the connection with information from the params */
 967         con = hash_con->con;
 968         con->terminate_params = terminate_params;
 969
 970         return qed_sp_fcoe_conn_destroy(QED_LEADING_HWFN(cdev), con,
 971                                         QED_SPQ_MODE_EBLOCK, NULL);
 972 }
 973
 974 static int qed_fcoe_stats(struct qed_dev *cdev, struct qed_fcoe_stats *stats)
 975 {
 976         return qed_fcoe_get_stats(QED_LEADING_HWFN(cdev), stats);
 977 }
 978
 979 void qed_get_protocol_stats_fcoe(struct qed_dev *cdev,
 980                                  struct qed_mcp_fcoe_stats *stats)
 981 {
 982         struct qed_fcoe_stats proto_stats;
 983
 984         /* Retrieve FW statistics */
 985         memset(&proto_stats, 0, sizeof(proto_stats));
 986         if (qed_fcoe_stats(cdev, &proto_stats)) {
 987                 DP_VERBOSE(cdev, QED_MSG_STORAGE,
 988                            "Failed to collect FCoE statistics\n");
 989                 return;
 990         }
 991
 992         /* Translate FW statistics into struct */
 993         stats->rx_pkts = proto_stats.fcoe_rx_data_pkt_cnt +
 994                          proto_stats.fcoe_rx_xfer_pkt_cnt +
 995                          proto_stats.fcoe_rx_other_pkt_cnt;
 996         stats->tx_pkts = proto_stats.fcoe_tx_data_pkt_cnt +
 997                          proto_stats.fcoe_tx_xfer_pkt_cnt +
 998                          proto_stats.fcoe_tx_other_pkt_cnt;
 999         stats->fcs_err = proto_stats.fcoe_silent_drop_pkt_crc_error_cnt;
1000
1001         /* Request protocol driver to fill-in the rest */
1002         if (cdev->protocol_ops.fcoe && cdev->ops_cookie) {
1003                 struct qed_fcoe_cb_ops *ops = cdev->protocol_ops.fcoe;
1004                 void *cookie = cdev->ops_cookie;
1005
1006                 if (ops->get_login_failures)
1007                         stats->login_failure = ops->get_login_failures(cookie);
1008         }
1009 }
1010
1011 static const struct qed_fcoe_ops qed_fcoe_ops_pass = {
1012         .common = &qed_common_ops_pass,
1013         .ll2 = &qed_ll2_ops_pass,
1014         .fill_dev_info = &qed_fill_fcoe_dev_info,
1015         .start = &qed_fcoe_start,
1016         .stop = &qed_fcoe_stop,
1017         .register_ops = &qed_register_fcoe_ops,
1018         .acquire_conn = &qed_fcoe_acquire_conn,
1019         .release_conn = &qed_fcoe_release_conn,
1020         .offload_conn = &qed_fcoe_offload_conn,
1021         .destroy_conn = &qed_fcoe_destroy_conn,
1022         .get_stats = &qed_fcoe_stats,
1023 };
1024
1025 const struct qed_fcoe_ops *qed_get_fcoe_ops(void)
1026 {
1027         return &qed_fcoe_ops_pass;
1028 }
1029 EXPORT_SYMBOL(qed_get_fcoe_ops);
1030
1031 void qed_put_fcoe_ops(void)
1032 {
1033 }
1034 EXPORT_SYMBOL(qed_put_fcoe_ops);