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

   1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
   2 /* QLogic qed NIC Driver
   3  * Copyright (c) 2015-2017  QLogic Corporation
   4  * Copyright (c) 2019-2020 Marvell International Ltd.
   5  */
   6
   7 #include <linux/types.h>
   8 #include <asm/byteorder.h>
   9 #include <asm/param.h>
  10 #include <linux/delay.h>
  11 #include <linux/dma-mapping.h>
  12 #include <linux/interrupt.h>
  13 #include <linux/kernel.h>
  14 #include <linux/log2.h>
  15 #include <linux/module.h>
  16 #include <linux/pci.h>
  17 #include <linux/slab.h>
  18 #include <linux/stddef.h>
  19 #include <linux/string.h>
  20 #include <linux/workqueue.h>
  21 #include <linux/errno.h>
  22 #include <linux/list.h>
  23 #include <linux/spinlock.h>
  24 #define __PREVENT_DUMP_MEM_ARR__
  25 #define __PREVENT_PXP_GLOBAL_WIN__
  26 #include "qed.h"
  27 #include "qed_cxt.h"
  28 #include "qed_dev_api.h"
  29 #include "qed_fcoe.h"
  30 #include "qed_hsi.h"
  31 #include "qed_hw.h"
  32 #include "qed_int.h"
  33 #include "qed_iro_hsi.h"
  34 #include "qed_ll2.h"
  35 #include "qed_mcp.h"
  36 #include "qed_reg_addr.h"
  37 #include "qed_sp.h"
  38 #include "qed_sriov.h"
  39 #include <linux/qed/qed_fcoe_if.h>
  40
  41 struct qed_fcoe_conn {
  42         struct list_head list_entry;
  43         bool free_on_delete;
  44
  45         u16 conn_id;
  46         u32 icid;
  47         u32 fw_cid;
  48         u8 layer_code;
  49
  50         dma_addr_t sq_pbl_addr;
  51         dma_addr_t sq_curr_page_addr;
  52         dma_addr_t sq_next_page_addr;
  53         dma_addr_t xferq_pbl_addr;
  54         void *xferq_pbl_addr_virt_addr;
  55         dma_addr_t xferq_addr[4];
  56         void *xferq_addr_virt_addr[4];
  57         dma_addr_t confq_pbl_addr;
  58         void *confq_pbl_addr_virt_addr;
  59         dma_addr_t confq_addr[2];
  60         void *confq_addr_virt_addr[2];
  61
  62         dma_addr_t terminate_params;
  63
  64         u16 dst_mac_addr_lo;
  65         u16 dst_mac_addr_mid;
  66         u16 dst_mac_addr_hi;
  67         u16 src_mac_addr_lo;
  68         u16 src_mac_addr_mid;
  69         u16 src_mac_addr_hi;
  70
  71         u16 tx_max_fc_pay_len;
  72         u16 e_d_tov_timer_val;
  73         u16 rec_tov_timer_val;
  74         u16 rx_max_fc_pay_len;
  75         u16 vlan_tag;
  76         u16 physical_q0;
  77
  78         struct fc_addr_nw s_id;
  79         u8 max_conc_seqs_c3;
  80         struct fc_addr_nw d_id;
  81         u8 flags;
  82         u8 def_q_idx;
  83 };
  84
  85 static int
  86 qed_sp_fcoe_func_start(struct qed_hwfn *p_hwfn,
  87                        enum spq_mode comp_mode,
  88                        struct qed_spq_comp_cb *p_comp_addr)
  89 {
  90         struct qed_fcoe_pf_params *fcoe_pf_params = NULL;
  91         struct fcoe_init_ramrod_params *p_ramrod = NULL;
  92         struct fcoe_init_func_ramrod_data *p_data;
  93         struct fcoe_conn_context *p_cxt = NULL;
  94         struct qed_spq_entry *p_ent = NULL;
  95         struct qed_sp_init_data init_data;
  96         struct qed_cxt_info cxt_info;
  97         u32 dummy_cid;
  98         int rc = 0;
  99         __le16 tmp;
 100         u8 i;
 101
 102         /* Get SPQ entry */
 103         memset(&init_data, 0, sizeof(init_data));
 104         init_data.cid = qed_spq_get_cid(p_hwfn);
 105         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
 106         init_data.comp_mode = comp_mode;
 107         init_data.p_comp_data = p_comp_addr;
 108
 109         rc = qed_sp_init_request(p_hwfn, &p_ent,
 110                                  FCOE_RAMROD_CMD_ID_INIT_FUNC,
 111                                  PROTOCOLID_FCOE, &init_data);
 112         if (rc)
 113                 return rc;
 114
 115         p_ramrod = &p_ent->ramrod.fcoe_init;
 116         p_data = &p_ramrod->init_ramrod_data;
 117         fcoe_pf_params = &p_hwfn->pf_params.fcoe_pf_params;
 118
 119         /* Sanity */
 120         if (fcoe_pf_params->num_cqs > p_hwfn->hw_info.feat_num[QED_FCOE_CQ]) {
 121                 DP_ERR(p_hwfn,
 122                        "Cannot satisfy CQ amount. CQs requested %d, CQs available %d. Aborting function start\n",
 123                        fcoe_pf_params->num_cqs,
 124                        p_hwfn->hw_info.feat_num[QED_FCOE_CQ]);
 125                 rc = -EINVAL;
 126                 goto err;
 127         }
 128
 129         p_data->mtu = cpu_to_le16(fcoe_pf_params->mtu);
 130         tmp = cpu_to_le16(fcoe_pf_params->sq_num_pbl_pages);
 131         p_data->sq_num_pages_in_pbl = tmp;
 132
 133         rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_FCOE, &dummy_cid);
 134         if (rc)
 135                 goto err;
 136
 137         cxt_info.iid = dummy_cid;
 138         rc = qed_cxt_get_cid_info(p_hwfn, &cxt_info);
 139         if (rc) {
 140                 DP_NOTICE(p_hwfn, "Cannot find context info for dummy cid=%d\n",
 141                           dummy_cid);
 142                 goto err;
 143         }
 144         p_cxt = cxt_info.p_cxt;
 145         memset(p_cxt, 0, sizeof(*p_cxt));
 146
 147         SET_FIELD(p_cxt->tstorm_ag_context.flags3,
 148                   TSTORM_FCOE_CONN_AG_CTX_DUMMY_TIMER_CF_EN, 1);
 149
 150         fcoe_pf_params->dummy_icid = (u16)dummy_cid;
 151
 152         tmp = cpu_to_le16(fcoe_pf_params->num_tasks);
 153         p_data->func_params.num_tasks = tmp;
 154         p_data->func_params.log_page_size = fcoe_pf_params->log_page_size;
 155         p_data->func_params.debug_mode = fcoe_pf_params->debug_mode;
 156
 157         DMA_REGPAIR_LE(p_data->q_params.glbl_q_params_addr,
 158                        fcoe_pf_params->glbl_q_params_addr);
 159
 160         tmp = cpu_to_le16(fcoe_pf_params->cq_num_entries);
 161         p_data->q_params.cq_num_entries = tmp;
 162
 163         tmp = cpu_to_le16(fcoe_pf_params->cmdq_num_entries);
 164         p_data->q_params.cmdq_num_entries = tmp;
 165
 166         p_data->q_params.num_queues = fcoe_pf_params->num_cqs;
 167
 168         tmp = (__force __le16)p_hwfn->hw_info.resc_start[QED_CMDQS_CQS];
 169         p_data->q_params.queue_relative_offset = (__force u8)tmp;
 170
 171         for (i = 0; i < fcoe_pf_params->num_cqs; i++) {
 172                 tmp = cpu_to_le16(qed_get_igu_sb_id(p_hwfn, i));
 173                 p_data->q_params.cq_cmdq_sb_num_arr[i] = tmp;
 174         }
 175
 176         p_data->q_params.cq_sb_pi = fcoe_pf_params->gl_rq_pi;
 177         p_data->q_params.cmdq_sb_pi = fcoe_pf_params->gl_cmd_pi;
 178
 179         p_data->q_params.bdq_resource_id = (u8)RESC_START(p_hwfn, QED_BDQ);
 180
 181         DMA_REGPAIR_LE(p_data->q_params.bdq_pbl_base_address[BDQ_ID_RQ],
 182                        fcoe_pf_params->bdq_pbl_base_addr[BDQ_ID_RQ]);
 183         p_data->q_params.bdq_pbl_num_entries[BDQ_ID_RQ] =
 184             fcoe_pf_params->bdq_pbl_num_entries[BDQ_ID_RQ];
 185         tmp = cpu_to_le16(fcoe_pf_params->bdq_xoff_threshold[BDQ_ID_RQ]);
 186         p_data->q_params.bdq_xoff_threshold[BDQ_ID_RQ] = tmp;
 187         tmp = cpu_to_le16(fcoe_pf_params->bdq_xon_threshold[BDQ_ID_RQ]);
 188         p_data->q_params.bdq_xon_threshold[BDQ_ID_RQ] = tmp;
 189
 190         DMA_REGPAIR_LE(p_data->q_params.bdq_pbl_base_address[BDQ_ID_IMM_DATA],
 191                        fcoe_pf_params->bdq_pbl_base_addr[BDQ_ID_IMM_DATA]);
 192         p_data->q_params.bdq_pbl_num_entries[BDQ_ID_IMM_DATA] =
 193             fcoe_pf_params->bdq_pbl_num_entries[BDQ_ID_IMM_DATA];
 194         tmp = cpu_to_le16(fcoe_pf_params->bdq_xoff_threshold[BDQ_ID_IMM_DATA]);
 195         p_data->q_params.bdq_xoff_threshold[BDQ_ID_IMM_DATA] = tmp;
 196         tmp = cpu_to_le16(fcoe_pf_params->bdq_xon_threshold[BDQ_ID_IMM_DATA]);
 197         p_data->q_params.bdq_xon_threshold[BDQ_ID_IMM_DATA] = tmp;
 198         tmp = cpu_to_le16(fcoe_pf_params->rq_buffer_size);
 199         p_data->q_params.rq_buffer_size = tmp;
 200
 201         if (fcoe_pf_params->is_target) {
 202                 SET_FIELD(p_data->q_params.q_validity,
 203                           SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
 204                 if (p_data->q_params.bdq_pbl_num_entries[BDQ_ID_IMM_DATA])
 205                         SET_FIELD(p_data->q_params.q_validity,
 206                                   SCSI_INIT_FUNC_QUEUES_IMM_DATA_VALID, 1);
 207                 SET_FIELD(p_data->q_params.q_validity,
 208                           SCSI_INIT_FUNC_QUEUES_CMD_VALID, 1);
 209         } else {
 210                 SET_FIELD(p_data->q_params.q_validity,
 211                           SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
 212         }
 213
 214         rc = qed_spq_post(p_hwfn, p_ent, NULL);
 215
 216         return rc;
 217
 218 err:
 219         qed_sp_destroy_request(p_hwfn, p_ent);
 220         return rc;
 221 }
 222
 223 static int
 224 qed_sp_fcoe_conn_offload(struct qed_hwfn *p_hwfn,
 225                          struct qed_fcoe_conn *p_conn,
 226                          enum spq_mode comp_mode,
 227                          struct qed_spq_comp_cb *p_comp_addr)
 228 {
 229         struct fcoe_conn_offload_ramrod_params *p_ramrod = NULL;
 230         struct fcoe_conn_offload_ramrod_data *p_data;
 231         struct qed_spq_entry *p_ent = NULL;
 232         struct qed_sp_init_data init_data;
 233         u16 physical_q0;
 234         __le16 tmp;
 235         int rc;
 236
 237         /* Get SPQ entry */
 238         memset(&init_data, 0, sizeof(init_data));
 239         init_data.cid = p_conn->icid;
 240         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
 241         init_data.comp_mode = comp_mode;
 242         init_data.p_comp_data = p_comp_addr;
 243
 244         rc = qed_sp_init_request(p_hwfn, &p_ent,
 245                                  FCOE_RAMROD_CMD_ID_OFFLOAD_CONN,
 246                                  PROTOCOLID_FCOE, &init_data);
 247         if (rc)
 248                 return rc;
 249
 250         p_ramrod = &p_ent->ramrod.fcoe_conn_ofld;
 251         p_data = &p_ramrod->offload_ramrod_data;
 252
 253         /* Transmission PQ is the first of the PF */
 254         physical_q0 = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD);
 255         p_conn->physical_q0 = physical_q0;
 256         p_data->physical_q0 = cpu_to_le16(physical_q0);
 257
 258         p_data->conn_id = cpu_to_le16(p_conn->conn_id);
 259         DMA_REGPAIR_LE(p_data->sq_pbl_addr, p_conn->sq_pbl_addr);
 260         DMA_REGPAIR_LE(p_data->sq_curr_page_addr, p_conn->sq_curr_page_addr);
 261         DMA_REGPAIR_LE(p_data->sq_next_page_addr, p_conn->sq_next_page_addr);
 262         DMA_REGPAIR_LE(p_data->xferq_pbl_addr, p_conn->xferq_pbl_addr);
 263         DMA_REGPAIR_LE(p_data->xferq_curr_page_addr, p_conn->xferq_addr[0]);
 264         DMA_REGPAIR_LE(p_data->xferq_next_page_addr, p_conn->xferq_addr[1]);
 265
 266         DMA_REGPAIR_LE(p_data->respq_pbl_addr, p_conn->confq_pbl_addr);
 267         DMA_REGPAIR_LE(p_data->respq_curr_page_addr, p_conn->confq_addr[0]);
 268         DMA_REGPAIR_LE(p_data->respq_next_page_addr, p_conn->confq_addr[1]);
 269
 270         p_data->dst_mac_addr_lo = cpu_to_le16(p_conn->dst_mac_addr_lo);
 271         p_data->dst_mac_addr_mid = cpu_to_le16(p_conn->dst_mac_addr_mid);
 272         p_data->dst_mac_addr_hi = cpu_to_le16(p_conn->dst_mac_addr_hi);
 273         p_data->src_mac_addr_lo = cpu_to_le16(p_conn->src_mac_addr_lo);
 274         p_data->src_mac_addr_mid = cpu_to_le16(p_conn->src_mac_addr_mid);
 275         p_data->src_mac_addr_hi = cpu_to_le16(p_conn->src_mac_addr_hi);
 276
 277         tmp = cpu_to_le16(p_conn->tx_max_fc_pay_len);
 278         p_data->tx_max_fc_pay_len = tmp;
 279         tmp = cpu_to_le16(p_conn->e_d_tov_timer_val);
 280         p_data->e_d_tov_timer_val = tmp;
 281         tmp = cpu_to_le16(p_conn->rec_tov_timer_val);
 282         p_data->rec_rr_tov_timer_val = tmp;
 283         tmp = cpu_to_le16(p_conn->rx_max_fc_pay_len);
 284         p_data->rx_max_fc_pay_len = tmp;
 285
 286         p_data->vlan_tag = cpu_to_le16(p_conn->vlan_tag);
 287         p_data->s_id.addr_hi = p_conn->s_id.addr_hi;
 288         p_data->s_id.addr_mid = p_conn->s_id.addr_mid;
 289         p_data->s_id.addr_lo = p_conn->s_id.addr_lo;
 290         p_data->max_conc_seqs_c3 = p_conn->max_conc_seqs_c3;
 291         p_data->d_id.addr_hi = p_conn->d_id.addr_hi;
 292         p_data->d_id.addr_mid = p_conn->d_id.addr_mid;
 293         p_data->d_id.addr_lo = p_conn->d_id.addr_lo;
 294         p_data->flags = p_conn->flags;
 295         if (test_bit(QED_MF_UFP_SPECIFIC, &p_hwfn->cdev->mf_bits))
 296                 SET_FIELD(p_data->flags,
 297                           FCOE_CONN_OFFLOAD_RAMROD_DATA_B_SINGLE_VLAN, 1);
 298         p_data->def_q_idx = p_conn->def_q_idx;
 299
 300         return qed_spq_post(p_hwfn, p_ent, NULL);
 301 }
 302
 303 static int
 304 qed_sp_fcoe_conn_destroy(struct qed_hwfn *p_hwfn,
 305                          struct qed_fcoe_conn *p_conn,
 306                          enum spq_mode comp_mode,
 307                          struct qed_spq_comp_cb *p_comp_addr)
 308 {
 309         struct fcoe_conn_terminate_ramrod_params *p_ramrod = NULL;
 310         struct qed_spq_entry *p_ent = NULL;
 311         struct qed_sp_init_data init_data;
 312         int rc = 0;
 313
 314         /* Get SPQ entry */
 315         memset(&init_data, 0, sizeof(init_data));
 316         init_data.cid = p_conn->icid;
 317         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
 318         init_data.comp_mode = comp_mode;
 319         init_data.p_comp_data = p_comp_addr;
 320
 321         rc = qed_sp_init_request(p_hwfn, &p_ent,
 322                                  FCOE_RAMROD_CMD_ID_TERMINATE_CONN,
 323                                  PROTOCOLID_FCOE, &init_data);
 324         if (rc)
 325                 return rc;
 326
 327         p_ramrod = &p_ent->ramrod.fcoe_conn_terminate;
 328         DMA_REGPAIR_LE(p_ramrod->terminate_ramrod_data.terminate_params_addr,
 329                        p_conn->terminate_params);
 330
 331         return qed_spq_post(p_hwfn, p_ent, NULL);
 332 }
 333
 334 static int
 335 qed_sp_fcoe_func_stop(struct qed_hwfn *p_hwfn,
 336                       struct qed_ptt *p_ptt,
 337                       enum spq_mode comp_mode,
 338                       struct qed_spq_comp_cb *p_comp_addr)
 339 {
 340         struct qed_spq_entry *p_ent = NULL;
 341         struct qed_sp_init_data init_data;
 342         u32 active_segs = 0;
 343         int rc = 0;
 344
 345         /* Get SPQ entry */
 346         memset(&init_data, 0, sizeof(init_data));
 347         init_data.cid = p_hwfn->pf_params.fcoe_pf_params.dummy_icid;
 348         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
 349         init_data.comp_mode = comp_mode;
 350         init_data.p_comp_data = p_comp_addr;
 351
 352         rc = qed_sp_init_request(p_hwfn, &p_ent,
 353                                  FCOE_RAMROD_CMD_ID_DESTROY_FUNC,
 354                                  PROTOCOLID_FCOE, &init_data);
 355         if (rc)
 356                 return rc;
 357
 358         active_segs = qed_rd(p_hwfn, p_ptt, TM_REG_PF_ENABLE_TASK);
 359         active_segs &= ~BIT(QED_CXT_FCOE_TID_SEG);
 360         qed_wr(p_hwfn, p_ptt, TM_REG_PF_ENABLE_TASK, active_segs);
 361
 362         return qed_spq_post(p_hwfn, p_ent, NULL);
 363 }
 364
 365 static int
 366 qed_fcoe_allocate_connection(struct qed_hwfn *p_hwfn,
 367                              struct qed_fcoe_conn **p_out_conn)
 368 {
 369         struct qed_fcoe_conn *p_conn = NULL;
 370         void *p_addr;
 371         u32 i;
 372
 373         spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
 374         if (!list_empty(&p_hwfn->p_fcoe_info->free_list))
 375                 p_conn =
 376                     list_first_entry(&p_hwfn->p_fcoe_info->free_list,
 377                                      struct qed_fcoe_conn, list_entry);
 378         if (p_conn) {
 379                 list_del(&p_conn->list_entry);
 380                 spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
 381                 *p_out_conn = p_conn;
 382                 return 0;
 383         }
 384         spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
 385
 386         p_conn = kzalloc(sizeof(*p_conn), GFP_KERNEL);
 387         if (!p_conn)
 388                 return -ENOMEM;
 389
 390         p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
 391                                     QED_CHAIN_PAGE_SIZE,
 392                                     &p_conn->xferq_pbl_addr, GFP_KERNEL);
 393         if (!p_addr)
 394                 goto nomem_pbl_xferq;
 395         p_conn->xferq_pbl_addr_virt_addr = p_addr;
 396
 397         for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++) {
 398                 p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
 399                                             QED_CHAIN_PAGE_SIZE,
 400                                             &p_conn->xferq_addr[i], GFP_KERNEL);
 401                 if (!p_addr)
 402                         goto nomem_xferq;
 403                 p_conn->xferq_addr_virt_addr[i] = p_addr;
 404
 405                 p_addr = p_conn->xferq_pbl_addr_virt_addr;
 406                 ((dma_addr_t *)p_addr)[i] = p_conn->xferq_addr[i];
 407         }
 408
 409         p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
 410                                     QED_CHAIN_PAGE_SIZE,
 411                                     &p_conn->confq_pbl_addr, GFP_KERNEL);
 412         if (!p_addr)
 413                 goto nomem_xferq;
 414         p_conn->confq_pbl_addr_virt_addr = p_addr;
 415
 416         for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++) {
 417                 p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
 418                                             QED_CHAIN_PAGE_SIZE,
 419                                             &p_conn->confq_addr[i], GFP_KERNEL);
 420                 if (!p_addr)
 421                         goto nomem_confq;
 422                 p_conn->confq_addr_virt_addr[i] = p_addr;
 423
 424                 p_addr = p_conn->confq_pbl_addr_virt_addr;
 425                 ((dma_addr_t *)p_addr)[i] = p_conn->confq_addr[i];
 426         }
 427
 428         p_conn->free_on_delete = true;
 429         *p_out_conn = p_conn;
 430         return 0;
 431
 432 nomem_confq:
 433         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 434                           QED_CHAIN_PAGE_SIZE,
 435                           p_conn->confq_pbl_addr_virt_addr,
 436                           p_conn->confq_pbl_addr);
 437         for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++)
 438                 if (p_conn->confq_addr_virt_addr[i])
 439                         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 440                                           QED_CHAIN_PAGE_SIZE,
 441                                           p_conn->confq_addr_virt_addr[i],
 442                                           p_conn->confq_addr[i]);
 443 nomem_xferq:
 444         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 445                           QED_CHAIN_PAGE_SIZE,
 446                           p_conn->xferq_pbl_addr_virt_addr,
 447                           p_conn->xferq_pbl_addr);
 448         for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++)
 449                 if (p_conn->xferq_addr_virt_addr[i])
 450                         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 451                                           QED_CHAIN_PAGE_SIZE,
 452                                           p_conn->xferq_addr_virt_addr[i],
 453                                           p_conn->xferq_addr[i]);
 454 nomem_pbl_xferq:
 455         kfree(p_conn);
 456         return -ENOMEM;
 457 }
 458
 459 static void qed_fcoe_free_connection(struct qed_hwfn *p_hwfn,
 460                                      struct qed_fcoe_conn *p_conn)
 461 {
 462         u32 i;
 463
 464         if (!p_conn)
 465                 return;
 466
 467         if (p_conn->confq_pbl_addr_virt_addr)
 468                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 469                                   QED_CHAIN_PAGE_SIZE,
 470                                   p_conn->confq_pbl_addr_virt_addr,
 471                                   p_conn->confq_pbl_addr);
 472
 473         for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++) {
 474                 if (!p_conn->confq_addr_virt_addr[i])
 475                         continue;
 476                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 477                                   QED_CHAIN_PAGE_SIZE,
 478                                   p_conn->confq_addr_virt_addr[i],
 479                                   p_conn->confq_addr[i]);
 480         }
 481
 482         if (p_conn->xferq_pbl_addr_virt_addr)
 483                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 484                                   QED_CHAIN_PAGE_SIZE,
 485                                   p_conn->xferq_pbl_addr_virt_addr,
 486                                   p_conn->xferq_pbl_addr);
 487
 488         for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++) {
 489                 if (!p_conn->xferq_addr_virt_addr[i])
 490                         continue;
 491                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 492                                   QED_CHAIN_PAGE_SIZE,
 493                                   p_conn->xferq_addr_virt_addr[i],
 494                                   p_conn->xferq_addr[i]);
 495         }
 496         kfree(p_conn);
 497 }
 498
 499 static void __iomem *qed_fcoe_get_db_addr(struct qed_hwfn *p_hwfn, u32 cid)
 500 {
 501         return (u8 __iomem *)p_hwfn->doorbells +
 502                qed_db_addr(cid, DQ_DEMS_LEGACY);
 503 }
 504
 505 static void __iomem *qed_fcoe_get_primary_bdq_prod(struct qed_hwfn *p_hwfn,
 506                                                    u8 bdq_id)
 507 {
 508         if (RESC_NUM(p_hwfn, QED_BDQ)) {
 509                 return (u8 __iomem *)p_hwfn->regview +
 510                     GET_GTT_BDQ_REG_ADDR(GTT_BAR0_MAP_REG_MSDM_RAM,
 511                                          MSTORM_SCSI_BDQ_EXT_PROD,
 512                                          RESC_START(p_hwfn, QED_BDQ), bdq_id);
 513         } else {
 514                 DP_NOTICE(p_hwfn, "BDQ is not allocated!\n");
 515                 return NULL;
 516         }
 517 }
 518
 519 static void __iomem *qed_fcoe_get_secondary_bdq_prod(struct qed_hwfn *p_hwfn,
 520                                                      u8 bdq_id)
 521 {
 522         if (RESC_NUM(p_hwfn, QED_BDQ)) {
 523                 return (u8 __iomem *)p_hwfn->regview +
 524                     GET_GTT_BDQ_REG_ADDR(GTT_BAR0_MAP_REG_TSDM_RAM,
 525                                          TSTORM_SCSI_BDQ_EXT_PROD,
 526                                          RESC_START(p_hwfn, QED_BDQ), bdq_id);
 527         } else {
 528                 DP_NOTICE(p_hwfn, "BDQ is not allocated!\n");
 529                 return NULL;
 530         }
 531 }
 532
 533 int qed_fcoe_alloc(struct qed_hwfn *p_hwfn)
 534 {
 535         struct qed_fcoe_info *p_fcoe_info;
 536
 537         /* Allocate LL2's set struct */
 538         p_fcoe_info = kzalloc(sizeof(*p_fcoe_info), GFP_KERNEL);
 539         if (!p_fcoe_info) {
 540                 DP_NOTICE(p_hwfn, "Failed to allocate qed_fcoe_info'\n");
 541                 return -ENOMEM;
 542         }
 543         INIT_LIST_HEAD(&p_fcoe_info->free_list);
 544
 545         p_hwfn->p_fcoe_info = p_fcoe_info;
 546         return 0;
 547 }
 548
 549 void qed_fcoe_setup(struct qed_hwfn *p_hwfn)
 550 {
 551         struct fcoe_task_context *p_task_ctx = NULL;
 552         u32 i, lc;
 553         int rc;
 554
 555         spin_lock_init(&p_hwfn->p_fcoe_info->lock);
 556         for (i = 0; i < p_hwfn->pf_params.fcoe_pf_params.num_tasks; i++) {
 557                 rc = qed_cxt_get_task_ctx(p_hwfn, i,
 558                                           QED_CTX_WORKING_MEM,
 559                                           (void **)&p_task_ctx);
 560                 if (rc)
 561                         continue;
 562
 563                 memset(p_task_ctx, 0, sizeof(struct fcoe_task_context));
 564
 565                 lc = 0;
 566                 SET_FIELD(lc, TIMERS_CONTEXT_VALIDLC0, 1);
 567                 p_task_ctx->timer_context.logical_client_0 = cpu_to_le32(lc);
 568
 569                 lc = 0;
 570                 SET_FIELD(lc, TIMERS_CONTEXT_VALIDLC1, 1);
 571                 p_task_ctx->timer_context.logical_client_1 = cpu_to_le32(lc);
 572
 573                 SET_FIELD(p_task_ctx->tstorm_ag_context.flags0,
 574                           TSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE, 1);
 575         }
 576 }
 577
 578 void qed_fcoe_free(struct qed_hwfn *p_hwfn)
 579 {
 580         struct qed_fcoe_conn *p_conn = NULL;
 581
 582         if (!p_hwfn->p_fcoe_info)
 583                 return;
 584
 585         while (!list_empty(&p_hwfn->p_fcoe_info->free_list)) {
 586                 p_conn = list_first_entry(&p_hwfn->p_fcoe_info->free_list,
 587                                           struct qed_fcoe_conn, list_entry);
 588                 if (!p_conn)
 589                         break;
 590                 list_del(&p_conn->list_entry);
 591                 qed_fcoe_free_connection(p_hwfn, p_conn);
 592         }
 593
 594         kfree(p_hwfn->p_fcoe_info);
 595         p_hwfn->p_fcoe_info = NULL;
 596 }
 597
 598 static int
 599 qed_fcoe_acquire_connection(struct qed_hwfn *p_hwfn,
 600                             struct qed_fcoe_conn *p_in_conn,
 601                             struct qed_fcoe_conn **p_out_conn)
 602 {
 603         struct qed_fcoe_conn *p_conn = NULL;
 604         int rc = 0;
 605         u32 icid;
 606
 607         spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
 608         rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_FCOE, &icid);
 609         spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
 610         if (rc)
 611                 return rc;
 612
 613         /* Use input connection [if provided] or allocate a new one */
 614         if (p_in_conn) {
 615                 p_conn = p_in_conn;
 616         } else {
 617                 rc = qed_fcoe_allocate_connection(p_hwfn, &p_conn);
 618                 if (rc) {
 619                         spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
 620                         qed_cxt_release_cid(p_hwfn, icid);
 621                         spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
 622                         return rc;
 623                 }
 624         }
 625
 626         p_conn->icid = icid;
 627         p_conn->fw_cid = (p_hwfn->hw_info.opaque_fid << 16) | icid;
 628         *p_out_conn = p_conn;
 629
 630         return rc;
 631 }
 632
 633 static void qed_fcoe_release_connection(struct qed_hwfn *p_hwfn,
 634                                         struct qed_fcoe_conn *p_conn)
 635 {
 636         spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
 637         list_add_tail(&p_conn->list_entry, &p_hwfn->p_fcoe_info->free_list);
 638         qed_cxt_release_cid(p_hwfn, p_conn->icid);
 639         spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
 640 }
 641
 642 static void _qed_fcoe_get_tstats(struct qed_hwfn *p_hwfn,
 643                                  struct qed_ptt *p_ptt,
 644                                  struct qed_fcoe_stats *p_stats)
 645 {
 646         struct fcoe_rx_stat tstats;
 647         u32 tstats_addr;
 648
 649         memset(&tstats, 0, sizeof(tstats));
 650         tstats_addr = BAR0_MAP_REG_TSDM_RAM +
 651             TSTORM_FCOE_RX_STATS_OFFSET(p_hwfn->rel_pf_id);
 652         qed_memcpy_from(p_hwfn, p_ptt, &tstats, tstats_addr, sizeof(tstats));
 653
 654         p_stats->fcoe_rx_byte_cnt = HILO_64_REGPAIR(tstats.fcoe_rx_byte_cnt);
 655         p_stats->fcoe_rx_data_pkt_cnt =
 656             HILO_64_REGPAIR(tstats.fcoe_rx_data_pkt_cnt);
 657         p_stats->fcoe_rx_xfer_pkt_cnt =
 658             HILO_64_REGPAIR(tstats.fcoe_rx_xfer_pkt_cnt);
 659         p_stats->fcoe_rx_other_pkt_cnt =
 660             HILO_64_REGPAIR(tstats.fcoe_rx_other_pkt_cnt);
 661
 662         p_stats->fcoe_silent_drop_pkt_cmdq_full_cnt =
 663             le32_to_cpu(tstats.fcoe_silent_drop_pkt_cmdq_full_cnt);
 664         p_stats->fcoe_silent_drop_pkt_rq_full_cnt =
 665             le32_to_cpu(tstats.fcoe_silent_drop_pkt_rq_full_cnt);
 666         p_stats->fcoe_silent_drop_pkt_crc_error_cnt =
 667             le32_to_cpu(tstats.fcoe_silent_drop_pkt_crc_error_cnt);
 668         p_stats->fcoe_silent_drop_pkt_task_invalid_cnt =
 669             le32_to_cpu(tstats.fcoe_silent_drop_pkt_task_invalid_cnt);
 670         p_stats->fcoe_silent_drop_total_pkt_cnt =
 671             le32_to_cpu(tstats.fcoe_silent_drop_total_pkt_cnt);
 672 }
 673
 674 static void _qed_fcoe_get_pstats(struct qed_hwfn *p_hwfn,
 675                                  struct qed_ptt *p_ptt,
 676                                  struct qed_fcoe_stats *p_stats)
 677 {
 678         struct fcoe_tx_stat pstats;
 679         u32 pstats_addr;
 680
 681         memset(&pstats, 0, sizeof(pstats));
 682         pstats_addr = BAR0_MAP_REG_PSDM_RAM +
 683             PSTORM_FCOE_TX_STATS_OFFSET(p_hwfn->rel_pf_id);
 684         qed_memcpy_from(p_hwfn, p_ptt, &pstats, pstats_addr, sizeof(pstats));
 685
 686         p_stats->fcoe_tx_byte_cnt = HILO_64_REGPAIR(pstats.fcoe_tx_byte_cnt);
 687         p_stats->fcoe_tx_data_pkt_cnt =
 688             HILO_64_REGPAIR(pstats.fcoe_tx_data_pkt_cnt);
 689         p_stats->fcoe_tx_xfer_pkt_cnt =
 690             HILO_64_REGPAIR(pstats.fcoe_tx_xfer_pkt_cnt);
 691         p_stats->fcoe_tx_other_pkt_cnt =
 692             HILO_64_REGPAIR(pstats.fcoe_tx_other_pkt_cnt);
 693 }
 694
 695 static int qed_fcoe_get_stats(struct qed_hwfn *p_hwfn,
 696                               struct qed_fcoe_stats *p_stats,
 697                               bool is_atomic)
 698 {
 699         struct qed_ptt *p_ptt;
 700
 701         memset(p_stats, 0, sizeof(*p_stats));
 702
 703         p_ptt = qed_ptt_acquire_context(p_hwfn, is_atomic);
 704
 705         if (!p_ptt) {
 706                 DP_ERR(p_hwfn, "Failed to acquire ptt\n");
 707                 return -EINVAL;
 708         }
 709
 710         _qed_fcoe_get_tstats(p_hwfn, p_ptt, p_stats);
 711         _qed_fcoe_get_pstats(p_hwfn, p_ptt, p_stats);
 712
 713         qed_ptt_release(p_hwfn, p_ptt);
 714
 715         return 0;
 716 }
 717
 718 struct qed_hash_fcoe_con {
 719         struct hlist_node node;
 720         struct qed_fcoe_conn *con;
 721 };
 722
 723 static int qed_fill_fcoe_dev_info(struct qed_dev *cdev,
 724                                   struct qed_dev_fcoe_info *info)
 725 {
 726         struct qed_hwfn *hwfn = QED_AFFIN_HWFN(cdev);
 727         int rc;
 728
 729         memset(info, 0, sizeof(*info));
 730         rc = qed_fill_dev_info(cdev, &info->common);
 731
 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);
 736
 737         info->wwpn = hwfn->mcp_info->func_info.wwn_port;
 738         info->wwnn = hwfn->mcp_info->func_info.wwn_node;
 739
 740         info->num_cqs = FEAT_NUM(hwfn, QED_FCOE_CQ);
 741
 742         return rc;
 743 }
 744
 745 static void qed_register_fcoe_ops(struct qed_dev *cdev,
 746                                   struct qed_fcoe_cb_ops *ops, void *cookie)
 747 {
 748         cdev->protocol_ops.fcoe = ops;
 749         cdev->ops_cookie = cookie;
 750 }
 751
 752 static struct qed_hash_fcoe_con *qed_fcoe_get_hash(struct qed_dev *cdev,
 753                                                    u32 handle)
 754 {
 755         struct qed_hash_fcoe_con *hash_con = NULL;
 756
 757         if (!(cdev->flags & QED_FLAG_STORAGE_STARTED))
 758                 return NULL;
 759
 760         hash_for_each_possible(cdev->connections, hash_con, node, handle) {
 761                 if (hash_con->con->icid == handle)
 762                         break;
 763         }
 764
 765         if (!hash_con || (hash_con->con->icid != handle))
 766                 return NULL;
 767
 768         return hash_con;
 769 }
 770
 771 static int qed_fcoe_stop(struct qed_dev *cdev)
 772 {
 773         struct qed_ptt *p_ptt;
 774         int rc;
 775
 776         if (!(cdev->flags & QED_FLAG_STORAGE_STARTED)) {
 777                 DP_NOTICE(cdev, "fcoe already stopped\n");
 778                 return 0;
 779         }
 780
 781         if (!hash_empty(cdev->connections)) {
 782                 DP_NOTICE(cdev,
 783                           "Can't stop fcoe - not all connections were returned\n");
 784                 return -EINVAL;
 785         }
 786
 787         p_ptt = qed_ptt_acquire(QED_AFFIN_HWFN(cdev));
 788         if (!p_ptt)
 789                 return -EAGAIN;
 790
 791         /* Stop the fcoe */
 792         rc = qed_sp_fcoe_func_stop(QED_AFFIN_HWFN(cdev), p_ptt,
 793                                    QED_SPQ_MODE_EBLOCK, NULL);
 794         cdev->flags &= ~QED_FLAG_STORAGE_STARTED;
 795         qed_ptt_release(QED_AFFIN_HWFN(cdev), p_ptt);
 796
 797         return rc;
 798 }
 799
 800 static int qed_fcoe_start(struct qed_dev *cdev, struct qed_fcoe_tid *tasks)
 801 {
 802         int rc;
 803
 804         if (cdev->flags & QED_FLAG_STORAGE_STARTED) {
 805                 DP_NOTICE(cdev, "fcoe already started;\n");
 806                 return 0;
 807         }
 808
 809         rc = qed_sp_fcoe_func_start(QED_AFFIN_HWFN(cdev), QED_SPQ_MODE_EBLOCK,
 810                                     NULL);
 811         if (rc) {
 812                 DP_NOTICE(cdev, "Failed to start fcoe\n");
 813                 return rc;
 814         }
 815
 816         cdev->flags |= QED_FLAG_STORAGE_STARTED;
 817         hash_init(cdev->connections);
 818
 819         if (tasks) {
 820                 struct qed_tid_mem *tid_info = kzalloc(sizeof(*tid_info),
 821                                                        GFP_ATOMIC);
 822
 823                 if (!tid_info) {
 824                         DP_NOTICE(cdev,
 825                                   "Failed to allocate tasks information\n");
 826                         qed_fcoe_stop(cdev);
 827                         return -ENOMEM;
 828                 }
 829
 830                 rc = qed_cxt_get_tid_mem_info(QED_AFFIN_HWFN(cdev), tid_info);
 831                 if (rc) {
 832                         DP_NOTICE(cdev, "Failed to gather task information\n");
 833                         qed_fcoe_stop(cdev);
 834                         kfree(tid_info);
 835                         return rc;
 836                 }
 837
 838                 /* Fill task information */
 839                 tasks->size = tid_info->tid_size;
 840                 tasks->num_tids_per_block = tid_info->num_tids_per_block;
 841                 memcpy(tasks->blocks, tid_info->blocks,
 842                        MAX_TID_BLOCKS_FCOE * sizeof(u8 *));
 843
 844                 kfree(tid_info);
 845         }
 846
 847         return 0;
 848 }
 849
 850 static int qed_fcoe_acquire_conn(struct qed_dev *cdev,
 851                                  u32 *handle,
 852                                  u32 *fw_cid, void __iomem **p_doorbell)
 853 {
 854         struct qed_hash_fcoe_con *hash_con;
 855         int rc;
 856
 857         /* Allocate a hashed connection */
 858         hash_con = kzalloc(sizeof(*hash_con), GFP_KERNEL);
 859         if (!hash_con) {
 860                 DP_NOTICE(cdev, "Failed to allocate hashed connection\n");
 861                 return -ENOMEM;
 862         }
 863
 864         /* Acquire the connection */
 865         rc = qed_fcoe_acquire_connection(QED_AFFIN_HWFN(cdev), NULL,
 866                                          &hash_con->con);
 867         if (rc) {
 868                 DP_NOTICE(cdev, "Failed to acquire Connection\n");
 869                 kfree(hash_con);
 870                 return rc;
 871         }
 872
 873         /* Added the connection to hash table */
 874         *handle = hash_con->con->icid;
 875         *fw_cid = hash_con->con->fw_cid;
 876         hash_add(cdev->connections, &hash_con->node, *handle);
 877
 878         if (p_doorbell)
 879                 *p_doorbell = qed_fcoe_get_db_addr(QED_AFFIN_HWFN(cdev),
 880                                                    *handle);
 881
 882         return 0;
 883 }
 884
 885 static int qed_fcoe_release_conn(struct qed_dev *cdev, u32 handle)
 886 {
 887         struct qed_hash_fcoe_con *hash_con;
 888
 889         hash_con = qed_fcoe_get_hash(cdev, handle);
 890         if (!hash_con) {
 891                 DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
 892                           handle);
 893                 return -EINVAL;
 894         }
 895
 896         hlist_del(&hash_con->node);
 897         qed_fcoe_release_connection(QED_AFFIN_HWFN(cdev), hash_con->con);
 898         kfree(hash_con);
 899
 900         return 0;
 901 }
 902
 903 static int qed_fcoe_offload_conn(struct qed_dev *cdev,
 904                                  u32 handle,
 905                                  struct qed_fcoe_params_offload *conn_info)
 906 {
 907         struct qed_hash_fcoe_con *hash_con;
 908         struct qed_fcoe_conn *con;
 909
 910         hash_con = qed_fcoe_get_hash(cdev, handle);
 911         if (!hash_con) {
 912                 DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
 913                           handle);
 914                 return -EINVAL;
 915         }
 916
 917         /* Update the connection with information from the params */
 918         con = hash_con->con;
 919
 920         con->sq_pbl_addr = conn_info->sq_pbl_addr;
 921         con->sq_curr_page_addr = conn_info->sq_curr_page_addr;
 922         con->sq_next_page_addr = conn_info->sq_next_page_addr;
 923         con->tx_max_fc_pay_len = conn_info->tx_max_fc_pay_len;
 924         con->e_d_tov_timer_val = conn_info->e_d_tov_timer_val;
 925         con->rec_tov_timer_val = conn_info->rec_tov_timer_val;
 926         con->rx_max_fc_pay_len = conn_info->rx_max_fc_pay_len;
 927         con->vlan_tag = conn_info->vlan_tag;
 928         con->max_conc_seqs_c3 = conn_info->max_conc_seqs_c3;
 929         con->flags = conn_info->flags;
 930         con->def_q_idx = conn_info->def_q_idx;
 931
 932         con->src_mac_addr_hi = (conn_info->src_mac[5] << 8) |
 933             conn_info->src_mac[4];
 934         con->src_mac_addr_mid = (conn_info->src_mac[3] << 8) |
 935             conn_info->src_mac[2];
 936         con->src_mac_addr_lo = (conn_info->src_mac[1] << 8) |
 937             conn_info->src_mac[0];
 938         con->dst_mac_addr_hi = (conn_info->dst_mac[5] << 8) |
 939             conn_info->dst_mac[4];
 940         con->dst_mac_addr_mid = (conn_info->dst_mac[3] << 8) |
 941             conn_info->dst_mac[2];
 942         con->dst_mac_addr_lo = (conn_info->dst_mac[1] << 8) |
 943             conn_info->dst_mac[0];
 944
 945         con->s_id.addr_hi = conn_info->s_id.addr_hi;
 946         con->s_id.addr_mid = conn_info->s_id.addr_mid;
 947         con->s_id.addr_lo = conn_info->s_id.addr_lo;
 948         con->d_id.addr_hi = conn_info->d_id.addr_hi;
 949         con->d_id.addr_mid = conn_info->d_id.addr_mid;
 950         con->d_id.addr_lo = conn_info->d_id.addr_lo;
 951
 952         return qed_sp_fcoe_conn_offload(QED_AFFIN_HWFN(cdev), con,
 953                                         QED_SPQ_MODE_EBLOCK, NULL);
 954 }
 955
 956 static int qed_fcoe_destroy_conn(struct qed_dev *cdev,
 957                                  u32 handle, dma_addr_t terminate_params)
 958 {
 959         struct qed_hash_fcoe_con *hash_con;
 960         struct qed_fcoe_conn *con;
 961
 962         hash_con = qed_fcoe_get_hash(cdev, handle);
 963         if (!hash_con) {
 964                 DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
 965                           handle);
 966                 return -EINVAL;
 967         }
 968
 969         /* Update the connection with information from the params */
 970         con = hash_con->con;
 971         con->terminate_params = terminate_params;
 972
 973         return qed_sp_fcoe_conn_destroy(QED_AFFIN_HWFN(cdev), con,
 974                                         QED_SPQ_MODE_EBLOCK, NULL);
 975 }
 976
 977 static int qed_fcoe_stats_context(struct qed_dev *cdev,
 978                                   struct qed_fcoe_stats *stats,
 979                                   bool is_atomic)
 980 {
 981         return qed_fcoe_get_stats(QED_AFFIN_HWFN(cdev), stats, is_atomic);
 982 }
 983
 984 static int qed_fcoe_stats(struct qed_dev *cdev, struct qed_fcoe_stats *stats)
 985 {
 986         return qed_fcoe_stats_context(cdev, stats, false);
 987 }
 988
 989 void qed_get_protocol_stats_fcoe(struct qed_dev *cdev,
 990                                  struct qed_mcp_fcoe_stats *stats,
 991                                  bool is_atomic)
 992 {
 993         struct qed_fcoe_stats proto_stats;
 994
 995         /* Retrieve FW statistics */
 996         memset(&proto_stats, 0, sizeof(proto_stats));
 997         if (qed_fcoe_stats_context(cdev, &proto_stats, is_atomic)) {
 998                 DP_VERBOSE(cdev, QED_MSG_STORAGE,
 999                            "Failed to collect FCoE statistics\n");
1000                 return;
1001         }
1002
1003         /* Translate FW statistics into struct */
1004         stats->rx_pkts = proto_stats.fcoe_rx_data_pkt_cnt +
1005                          proto_stats.fcoe_rx_xfer_pkt_cnt +
1006                          proto_stats.fcoe_rx_other_pkt_cnt;
1007         stats->tx_pkts = proto_stats.fcoe_tx_data_pkt_cnt +
1008                          proto_stats.fcoe_tx_xfer_pkt_cnt +
1009                          proto_stats.fcoe_tx_other_pkt_cnt;
1010         stats->fcs_err = proto_stats.fcoe_silent_drop_pkt_crc_error_cnt;
1011
1012         /* Request protocol driver to fill-in the rest */
1013         if (cdev->protocol_ops.fcoe && cdev->ops_cookie) {
1014                 struct qed_fcoe_cb_ops *ops = cdev->protocol_ops.fcoe;
1015                 void *cookie = cdev->ops_cookie;
1016
1017                 if (ops->get_login_failures)
1018                         stats->login_failure = ops->get_login_failures(cookie);
1019         }
1020 }
1021
1022 static const struct qed_fcoe_ops qed_fcoe_ops_pass = {
1023         .common = &qed_common_ops_pass,
1024         .ll2 = &qed_ll2_ops_pass,
1025         .fill_dev_info = &qed_fill_fcoe_dev_info,
1026         .start = &qed_fcoe_start,
1027         .stop = &qed_fcoe_stop,
1028         .register_ops = &qed_register_fcoe_ops,
1029         .acquire_conn = &qed_fcoe_acquire_conn,
1030         .release_conn = &qed_fcoe_release_conn,
1031         .offload_conn = &qed_fcoe_offload_conn,
1032         .destroy_conn = &qed_fcoe_destroy_conn,
1033         .get_stats = &qed_fcoe_stats,
1034 };
1035
1036 const struct qed_fcoe_ops *qed_get_fcoe_ops(void)
1037 {
1038         return &qed_fcoe_ops_pass;
1039 }
1040 EXPORT_SYMBOL(qed_get_fcoe_ops);
1041
1042 void qed_put_fcoe_ops(void)
1043 {
1044 }
1045 EXPORT_SYMBOL(qed_put_fcoe_ops);