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 e4_fcoe_conn_context *p_cxt = NULL;
 119         struct qed_spq_entry *p_ent = NULL;
 120         struct qed_sp_init_data init_data;
 121         struct qed_cxt_info cxt_info;
 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         /* Sanity */
 145         if (fcoe_pf_params->num_cqs > p_hwfn->hw_info.feat_num[QED_FCOE_CQ]) {
 146                 DP_ERR(p_hwfn,
 147                        "Cannot satisfy CQ amount. CQs requested %d, CQs available %d. Aborting function start\n",
 148                        fcoe_pf_params->num_cqs,
 149                        p_hwfn->hw_info.feat_num[QED_FCOE_CQ]);
 150                 return -EINVAL;
 151         }
 152
 153         p_data->mtu = cpu_to_le16(fcoe_pf_params->mtu);
 154         tmp = cpu_to_le16(fcoe_pf_params->sq_num_pbl_pages);
 155         p_data->sq_num_pages_in_pbl = tmp;
 156
 157         rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_FCOE, &dummy_cid);
 158         if (rc)
 159                 return rc;
 160
 161         cxt_info.iid = dummy_cid;
 162         rc = qed_cxt_get_cid_info(p_hwfn, &cxt_info);
 163         if (rc) {
 164                 DP_NOTICE(p_hwfn, "Cannot find context info for dummy cid=%d\n",
 165                           dummy_cid);
 166                 return rc;
 167         }
 168         p_cxt = cxt_info.p_cxt;
 169         SET_FIELD(p_cxt->tstorm_ag_context.flags3,
 170                   E4_TSTORM_FCOE_CONN_AG_CTX_DUMMY_TIMER_CF_EN, 1);
 171
 172         fcoe_pf_params->dummy_icid = (u16)dummy_cid;
 173
 174         tmp = cpu_to_le16(fcoe_pf_params->num_tasks);
 175         p_data->func_params.num_tasks = tmp;
 176         p_data->func_params.log_page_size = fcoe_pf_params->log_page_size;
 177         p_data->func_params.debug_mode = fcoe_pf_params->debug_mode;
 178
 179         DMA_REGPAIR_LE(p_data->q_params.glbl_q_params_addr,
 180                        fcoe_pf_params->glbl_q_params_addr);
 181
 182         tmp = cpu_to_le16(fcoe_pf_params->cq_num_entries);
 183         p_data->q_params.cq_num_entries = tmp;
 184
 185         tmp = cpu_to_le16(fcoe_pf_params->cmdq_num_entries);
 186         p_data->q_params.cmdq_num_entries = tmp;
 187
 188         tmp = fcoe_pf_params->num_cqs;
 189         p_data->q_params.num_queues = (u8)tmp;
 190
 191         tmp = (u16)p_hwfn->hw_info.resc_start[QED_CMDQS_CQS];
 192         p_data->q_params.queue_relative_offset = (u8)tmp;
 193
 194         for (i = 0; i < fcoe_pf_params->num_cqs; i++) {
 195                 u16 igu_sb_id;
 196
 197                 igu_sb_id = qed_get_igu_sb_id(p_hwfn, i);
 198                 tmp = cpu_to_le16(igu_sb_id);
 199                 p_data->q_params.cq_cmdq_sb_num_arr[i] = tmp;
 200         }
 201
 202         p_data->q_params.cq_sb_pi = fcoe_pf_params->gl_rq_pi;
 203         p_data->q_params.cmdq_sb_pi = fcoe_pf_params->gl_cmd_pi;
 204
 205         p_data->q_params.bdq_resource_id = (u8)RESC_START(p_hwfn, QED_BDQ);
 206
 207         DMA_REGPAIR_LE(p_data->q_params.bdq_pbl_base_address[BDQ_ID_RQ],
 208                        fcoe_pf_params->bdq_pbl_base_addr[BDQ_ID_RQ]);
 209         p_data->q_params.bdq_pbl_num_entries[BDQ_ID_RQ] =
 210             fcoe_pf_params->bdq_pbl_num_entries[BDQ_ID_RQ];
 211         tmp = fcoe_pf_params->bdq_xoff_threshold[BDQ_ID_RQ];
 212         p_data->q_params.bdq_xoff_threshold[BDQ_ID_RQ] = cpu_to_le16(tmp);
 213         tmp = fcoe_pf_params->bdq_xon_threshold[BDQ_ID_RQ];
 214         p_data->q_params.bdq_xon_threshold[BDQ_ID_RQ] = cpu_to_le16(tmp);
 215
 216         DMA_REGPAIR_LE(p_data->q_params.bdq_pbl_base_address[BDQ_ID_IMM_DATA],
 217                        fcoe_pf_params->bdq_pbl_base_addr[BDQ_ID_IMM_DATA]);
 218         p_data->q_params.bdq_pbl_num_entries[BDQ_ID_IMM_DATA] =
 219             fcoe_pf_params->bdq_pbl_num_entries[BDQ_ID_IMM_DATA];
 220         tmp = fcoe_pf_params->bdq_xoff_threshold[BDQ_ID_IMM_DATA];
 221         p_data->q_params.bdq_xoff_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(tmp);
 222         tmp = fcoe_pf_params->bdq_xon_threshold[BDQ_ID_IMM_DATA];
 223         p_data->q_params.bdq_xon_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(tmp);
 224         tmp = fcoe_pf_params->rq_buffer_size;
 225         p_data->q_params.rq_buffer_size = cpu_to_le16(tmp);
 226
 227         if (fcoe_pf_params->is_target) {
 228                 SET_FIELD(p_data->q_params.q_validity,
 229                           SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
 230                 if (p_data->q_params.bdq_pbl_num_entries[BDQ_ID_IMM_DATA])
 231                         SET_FIELD(p_data->q_params.q_validity,
 232                                   SCSI_INIT_FUNC_QUEUES_IMM_DATA_VALID, 1);
 233                 SET_FIELD(p_data->q_params.q_validity,
 234                           SCSI_INIT_FUNC_QUEUES_CMD_VALID, 1);
 235         } else {
 236                 SET_FIELD(p_data->q_params.q_validity,
 237                           SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
 238         }
 239
 240         rc = qed_spq_post(p_hwfn, p_ent, NULL);
 241
 242         return rc;
 243 }
 244
 245 static int
 246 qed_sp_fcoe_conn_offload(struct qed_hwfn *p_hwfn,
 247                          struct qed_fcoe_conn *p_conn,
 248                          enum spq_mode comp_mode,
 249                          struct qed_spq_comp_cb *p_comp_addr)
 250 {
 251         struct fcoe_conn_offload_ramrod_params *p_ramrod = NULL;
 252         struct fcoe_conn_offload_ramrod_data *p_data;
 253         struct qed_spq_entry *p_ent = NULL;
 254         struct qed_sp_init_data init_data;
 255         u16 physical_q0, tmp;
 256         int rc;
 257
 258         /* Get SPQ entry */
 259         memset(&init_data, 0, sizeof(init_data));
 260         init_data.cid = p_conn->icid;
 261         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
 262         init_data.comp_mode = comp_mode;
 263         init_data.p_comp_data = p_comp_addr;
 264
 265         rc = qed_sp_init_request(p_hwfn, &p_ent,
 266                                  FCOE_RAMROD_CMD_ID_OFFLOAD_CONN,
 267                                  PROTOCOLID_FCOE, &init_data);
 268         if (rc)
 269                 return rc;
 270
 271         p_ramrod = &p_ent->ramrod.fcoe_conn_ofld;
 272         p_data = &p_ramrod->offload_ramrod_data;
 273
 274         /* Transmission PQ is the first of the PF */
 275         physical_q0 = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD);
 276         p_conn->physical_q0 = cpu_to_le16(physical_q0);
 277         p_data->physical_q0 = cpu_to_le16(physical_q0);
 278
 279         p_data->conn_id = cpu_to_le16(p_conn->conn_id);
 280         DMA_REGPAIR_LE(p_data->sq_pbl_addr, p_conn->sq_pbl_addr);
 281         DMA_REGPAIR_LE(p_data->sq_curr_page_addr, p_conn->sq_curr_page_addr);
 282         DMA_REGPAIR_LE(p_data->sq_next_page_addr, p_conn->sq_next_page_addr);
 283         DMA_REGPAIR_LE(p_data->xferq_pbl_addr, p_conn->xferq_pbl_addr);
 284         DMA_REGPAIR_LE(p_data->xferq_curr_page_addr, p_conn->xferq_addr[0]);
 285         DMA_REGPAIR_LE(p_data->xferq_next_page_addr, p_conn->xferq_addr[1]);
 286
 287         DMA_REGPAIR_LE(p_data->respq_pbl_addr, p_conn->confq_pbl_addr);
 288         DMA_REGPAIR_LE(p_data->respq_curr_page_addr, p_conn->confq_addr[0]);
 289         DMA_REGPAIR_LE(p_data->respq_next_page_addr, p_conn->confq_addr[1]);
 290
 291         p_data->dst_mac_addr_lo = cpu_to_le16(p_conn->dst_mac_addr_lo);
 292         p_data->dst_mac_addr_mid = cpu_to_le16(p_conn->dst_mac_addr_mid);
 293         p_data->dst_mac_addr_hi = cpu_to_le16(p_conn->dst_mac_addr_hi);
 294         p_data->src_mac_addr_lo = cpu_to_le16(p_conn->src_mac_addr_lo);
 295         p_data->src_mac_addr_mid = cpu_to_le16(p_conn->src_mac_addr_mid);
 296         p_data->src_mac_addr_hi = cpu_to_le16(p_conn->src_mac_addr_hi);
 297
 298         tmp = cpu_to_le16(p_conn->tx_max_fc_pay_len);
 299         p_data->tx_max_fc_pay_len = tmp;
 300         tmp = cpu_to_le16(p_conn->e_d_tov_timer_val);
 301         p_data->e_d_tov_timer_val = tmp;
 302         tmp = cpu_to_le16(p_conn->rec_tov_timer_val);
 303         p_data->rec_rr_tov_timer_val = tmp;
 304         tmp = cpu_to_le16(p_conn->rx_max_fc_pay_len);
 305         p_data->rx_max_fc_pay_len = tmp;
 306
 307         p_data->vlan_tag = cpu_to_le16(p_conn->vlan_tag);
 308         p_data->s_id.addr_hi = p_conn->s_id.addr_hi;
 309         p_data->s_id.addr_mid = p_conn->s_id.addr_mid;
 310         p_data->s_id.addr_lo = p_conn->s_id.addr_lo;
 311         p_data->max_conc_seqs_c3 = p_conn->max_conc_seqs_c3;
 312         p_data->d_id.addr_hi = p_conn->d_id.addr_hi;
 313         p_data->d_id.addr_mid = p_conn->d_id.addr_mid;
 314         p_data->d_id.addr_lo = p_conn->d_id.addr_lo;
 315         p_data->flags = p_conn->flags;
 316         p_data->def_q_idx = p_conn->def_q_idx;
 317
 318         return qed_spq_post(p_hwfn, p_ent, NULL);
 319 }
 320
 321 static int
 322 qed_sp_fcoe_conn_destroy(struct qed_hwfn *p_hwfn,
 323                          struct qed_fcoe_conn *p_conn,
 324                          enum spq_mode comp_mode,
 325                          struct qed_spq_comp_cb *p_comp_addr)
 326 {
 327         struct fcoe_conn_terminate_ramrod_params *p_ramrod = NULL;
 328         struct qed_spq_entry *p_ent = NULL;
 329         struct qed_sp_init_data init_data;
 330         int rc = 0;
 331
 332         /* Get SPQ entry */
 333         memset(&init_data, 0, sizeof(init_data));
 334         init_data.cid = p_conn->icid;
 335         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
 336         init_data.comp_mode = comp_mode;
 337         init_data.p_comp_data = p_comp_addr;
 338
 339         rc = qed_sp_init_request(p_hwfn, &p_ent,
 340                                  FCOE_RAMROD_CMD_ID_TERMINATE_CONN,
 341                                  PROTOCOLID_FCOE, &init_data);
 342         if (rc)
 343                 return rc;
 344
 345         p_ramrod = &p_ent->ramrod.fcoe_conn_terminate;
 346         DMA_REGPAIR_LE(p_ramrod->terminate_ramrod_data.terminate_params_addr,
 347                        p_conn->terminate_params);
 348
 349         return qed_spq_post(p_hwfn, p_ent, NULL);
 350 }
 351
 352 static int
 353 qed_sp_fcoe_func_stop(struct qed_hwfn *p_hwfn,
 354                       struct qed_ptt *p_ptt,
 355                       enum spq_mode comp_mode,
 356                       struct qed_spq_comp_cb *p_comp_addr)
 357 {
 358         struct qed_spq_entry *p_ent = NULL;
 359         struct qed_sp_init_data init_data;
 360         u32 active_segs = 0;
 361         int rc = 0;
 362
 363         /* Get SPQ entry */
 364         memset(&init_data, 0, sizeof(init_data));
 365         init_data.cid = p_hwfn->pf_params.fcoe_pf_params.dummy_icid;
 366         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
 367         init_data.comp_mode = comp_mode;
 368         init_data.p_comp_data = p_comp_addr;
 369
 370         rc = qed_sp_init_request(p_hwfn, &p_ent,
 371                                  FCOE_RAMROD_CMD_ID_DESTROY_FUNC,
 372                                  PROTOCOLID_FCOE, &init_data);
 373         if (rc)
 374                 return rc;
 375
 376         active_segs = qed_rd(p_hwfn, p_ptt, TM_REG_PF_ENABLE_TASK);
 377         active_segs &= ~BIT(QED_CXT_FCOE_TID_SEG);
 378         qed_wr(p_hwfn, p_ptt, TM_REG_PF_ENABLE_TASK, active_segs);
 379
 380         return qed_spq_post(p_hwfn, p_ent, NULL);
 381 }
 382
 383 static int
 384 qed_fcoe_allocate_connection(struct qed_hwfn *p_hwfn,
 385                              struct qed_fcoe_conn **p_out_conn)
 386 {
 387         struct qed_fcoe_conn *p_conn = NULL;
 388         void *p_addr;
 389         u32 i;
 390
 391         spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
 392         if (!list_empty(&p_hwfn->p_fcoe_info->free_list))
 393                 p_conn =
 394                     list_first_entry(&p_hwfn->p_fcoe_info->free_list,
 395                                      struct qed_fcoe_conn, list_entry);
 396         if (p_conn) {
 397                 list_del(&p_conn->list_entry);
 398                 spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
 399                 *p_out_conn = p_conn;
 400                 return 0;
 401         }
 402         spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
 403
 404         p_conn = kzalloc(sizeof(*p_conn), GFP_KERNEL);
 405         if (!p_conn)
 406                 return -ENOMEM;
 407
 408         p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
 409                                     QED_CHAIN_PAGE_SIZE,
 410                                     &p_conn->xferq_pbl_addr, GFP_KERNEL);
 411         if (!p_addr)
 412                 goto nomem_pbl_xferq;
 413         p_conn->xferq_pbl_addr_virt_addr = p_addr;
 414
 415         for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++) {
 416                 p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
 417                                             QED_CHAIN_PAGE_SIZE,
 418                                             &p_conn->xferq_addr[i], GFP_KERNEL);
 419                 if (!p_addr)
 420                         goto nomem_xferq;
 421                 p_conn->xferq_addr_virt_addr[i] = p_addr;
 422
 423                 p_addr = p_conn->xferq_pbl_addr_virt_addr;
 424                 ((dma_addr_t *)p_addr)[i] = p_conn->xferq_addr[i];
 425         }
 426
 427         p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
 428                                     QED_CHAIN_PAGE_SIZE,
 429                                     &p_conn->confq_pbl_addr, GFP_KERNEL);
 430         if (!p_addr)
 431                 goto nomem_xferq;
 432         p_conn->confq_pbl_addr_virt_addr = p_addr;
 433
 434         for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++) {
 435                 p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
 436                                             QED_CHAIN_PAGE_SIZE,
 437                                             &p_conn->confq_addr[i], GFP_KERNEL);
 438                 if (!p_addr)
 439                         goto nomem_confq;
 440                 p_conn->confq_addr_virt_addr[i] = p_addr;
 441
 442                 p_addr = p_conn->confq_pbl_addr_virt_addr;
 443                 ((dma_addr_t *)p_addr)[i] = p_conn->confq_addr[i];
 444         }
 445
 446         p_conn->free_on_delete = true;
 447         *p_out_conn = p_conn;
 448         return 0;
 449
 450 nomem_confq:
 451         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 452                           QED_CHAIN_PAGE_SIZE,
 453                           p_conn->confq_pbl_addr_virt_addr,
 454                           p_conn->confq_pbl_addr);
 455         for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++)
 456                 if (p_conn->confq_addr_virt_addr[i])
 457                         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 458                                           QED_CHAIN_PAGE_SIZE,
 459                                           p_conn->confq_addr_virt_addr[i],
 460                                           p_conn->confq_addr[i]);
 461 nomem_xferq:
 462         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 463                           QED_CHAIN_PAGE_SIZE,
 464                           p_conn->xferq_pbl_addr_virt_addr,
 465                           p_conn->xferq_pbl_addr);
 466         for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++)
 467                 if (p_conn->xferq_addr_virt_addr[i])
 468                         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 469                                           QED_CHAIN_PAGE_SIZE,
 470                                           p_conn->xferq_addr_virt_addr[i],
 471                                           p_conn->xferq_addr[i]);
 472 nomem_pbl_xferq:
 473         kfree(p_conn);
 474         return -ENOMEM;
 475 }
 476
 477 static void qed_fcoe_free_connection(struct qed_hwfn *p_hwfn,
 478                                      struct qed_fcoe_conn *p_conn)
 479 {
 480         u32 i;
 481
 482         if (!p_conn)
 483                 return;
 484
 485         if (p_conn->confq_pbl_addr_virt_addr)
 486                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 487                                   QED_CHAIN_PAGE_SIZE,
 488                                   p_conn->confq_pbl_addr_virt_addr,
 489                                   p_conn->confq_pbl_addr);
 490
 491         for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++) {
 492                 if (!p_conn->confq_addr_virt_addr[i])
 493                         continue;
 494                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 495                                   QED_CHAIN_PAGE_SIZE,
 496                                   p_conn->confq_addr_virt_addr[i],
 497                                   p_conn->confq_addr[i]);
 498         }
 499
 500         if (p_conn->xferq_pbl_addr_virt_addr)
 501                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 502                                   QED_CHAIN_PAGE_SIZE,
 503                                   p_conn->xferq_pbl_addr_virt_addr,
 504                                   p_conn->xferq_pbl_addr);
 505
 506         for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++) {
 507                 if (!p_conn->xferq_addr_virt_addr[i])
 508                         continue;
 509                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 510                                   QED_CHAIN_PAGE_SIZE,
 511                                   p_conn->xferq_addr_virt_addr[i],
 512                                   p_conn->xferq_addr[i]);
 513         }
 514         kfree(p_conn);
 515 }
 516
 517 static void __iomem *qed_fcoe_get_db_addr(struct qed_hwfn *p_hwfn, u32 cid)
 518 {
 519         return (u8 __iomem *)p_hwfn->doorbells +
 520                qed_db_addr(cid, DQ_DEMS_LEGACY);
 521 }
 522
 523 static void __iomem *qed_fcoe_get_primary_bdq_prod(struct qed_hwfn *p_hwfn,
 524                                                    u8 bdq_id)
 525 {
 526         if (RESC_NUM(p_hwfn, QED_BDQ)) {
 527                 return (u8 __iomem *)p_hwfn->regview +
 528                        GTT_BAR0_MAP_REG_MSDM_RAM +
 529                        MSTORM_SCSI_BDQ_EXT_PROD_OFFSET(RESC_START(p_hwfn,
 530                                                                   QED_BDQ),
 531                                                        bdq_id);
 532         } else {
 533                 DP_NOTICE(p_hwfn, "BDQ is not allocated!\n");
 534                 return NULL;
 535         }
 536 }
 537
 538 static void __iomem *qed_fcoe_get_secondary_bdq_prod(struct qed_hwfn *p_hwfn,
 539                                                      u8 bdq_id)
 540 {
 541         if (RESC_NUM(p_hwfn, QED_BDQ)) {
 542                 return (u8 __iomem *)p_hwfn->regview +
 543                        GTT_BAR0_MAP_REG_TSDM_RAM +
 544                        TSTORM_SCSI_BDQ_EXT_PROD_OFFSET(RESC_START(p_hwfn,
 545                                                                   QED_BDQ),
 546                                                        bdq_id);
 547         } else {
 548                 DP_NOTICE(p_hwfn, "BDQ is not allocated!\n");
 549                 return NULL;
 550         }
 551 }
 552
 553 int qed_fcoe_alloc(struct qed_hwfn *p_hwfn)
 554 {
 555         struct qed_fcoe_info *p_fcoe_info;
 556
 557         /* Allocate LL2's set struct */
 558         p_fcoe_info = kzalloc(sizeof(*p_fcoe_info), GFP_KERNEL);
 559         if (!p_fcoe_info) {
 560                 DP_NOTICE(p_hwfn, "Failed to allocate qed_fcoe_info'\n");
 561                 return -ENOMEM;
 562         }
 563         INIT_LIST_HEAD(&p_fcoe_info->free_list);
 564
 565         p_hwfn->p_fcoe_info = p_fcoe_info;
 566         return 0;
 567 }
 568
 569 void qed_fcoe_setup(struct qed_hwfn *p_hwfn)
 570 {
 571         struct e4_fcoe_task_context *p_task_ctx = NULL;
 572         int rc;
 573         u32 i;
 574
 575         spin_lock_init(&p_hwfn->p_fcoe_info->lock);
 576         for (i = 0; i < p_hwfn->pf_params.fcoe_pf_params.num_tasks; i++) {
 577                 rc = qed_cxt_get_task_ctx(p_hwfn, i,
 578                                           QED_CTX_WORKING_MEM,
 579                                           (void **)&p_task_ctx);
 580                 if (rc)
 581                         continue;
 582
 583                 memset(p_task_ctx, 0, sizeof(struct e4_fcoe_task_context));
 584                 SET_FIELD(p_task_ctx->timer_context.logical_client_0,
 585                           TIMERS_CONTEXT_VALIDLC0, 1);
 586                 SET_FIELD(p_task_ctx->timer_context.logical_client_1,
 587                           TIMERS_CONTEXT_VALIDLC1, 1);
 588                 SET_FIELD(p_task_ctx->tstorm_ag_context.flags0,
 589                           E4_TSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE, 1);
 590         }
 591 }
 592
 593 void qed_fcoe_free(struct qed_hwfn *p_hwfn)
 594 {
 595         struct qed_fcoe_conn *p_conn = NULL;
 596
 597         if (!p_hwfn->p_fcoe_info)
 598                 return;
 599
 600         while (!list_empty(&p_hwfn->p_fcoe_info->free_list)) {
 601                 p_conn = list_first_entry(&p_hwfn->p_fcoe_info->free_list,
 602                                           struct qed_fcoe_conn, list_entry);
 603                 if (!p_conn)
 604                         break;
 605                 list_del(&p_conn->list_entry);
 606                 qed_fcoe_free_connection(p_hwfn, p_conn);
 607         }
 608
 609         kfree(p_hwfn->p_fcoe_info);
 610         p_hwfn->p_fcoe_info = NULL;
 611 }
 612
 613 static int
 614 qed_fcoe_acquire_connection(struct qed_hwfn *p_hwfn,
 615                             struct qed_fcoe_conn *p_in_conn,
 616                             struct qed_fcoe_conn **p_out_conn)
 617 {
 618         struct qed_fcoe_conn *p_conn = NULL;
 619         int rc = 0;
 620         u32 icid;
 621
 622         spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
 623         rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_FCOE, &icid);
 624         spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
 625         if (rc)
 626                 return rc;
 627
 628         /* Use input connection [if provided] or allocate a new one */
 629         if (p_in_conn) {
 630                 p_conn = p_in_conn;
 631         } else {
 632                 rc = qed_fcoe_allocate_connection(p_hwfn, &p_conn);
 633                 if (rc) {
 634                         spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
 635                         qed_cxt_release_cid(p_hwfn, icid);
 636                         spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
 637                         return rc;
 638                 }
 639         }
 640
 641         p_conn->icid = icid;
 642         p_conn->fw_cid = (p_hwfn->hw_info.opaque_fid << 16) | icid;
 643         *p_out_conn = p_conn;
 644
 645         return rc;
 646 }
 647
 648 static void qed_fcoe_release_connection(struct qed_hwfn *p_hwfn,
 649                                         struct qed_fcoe_conn *p_conn)
 650 {
 651         spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
 652         list_add_tail(&p_conn->list_entry, &p_hwfn->p_fcoe_info->free_list);
 653         qed_cxt_release_cid(p_hwfn, p_conn->icid);
 654         spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
 655 }
 656
 657 static void _qed_fcoe_get_tstats(struct qed_hwfn *p_hwfn,
 658                                  struct qed_ptt *p_ptt,
 659                                  struct qed_fcoe_stats *p_stats)
 660 {
 661         struct fcoe_rx_stat tstats;
 662         u32 tstats_addr;
 663
 664         memset(&tstats, 0, sizeof(tstats));
 665         tstats_addr = BAR0_MAP_REG_TSDM_RAM +
 666             TSTORM_FCOE_RX_STATS_OFFSET(p_hwfn->rel_pf_id);
 667         qed_memcpy_from(p_hwfn, p_ptt, &tstats, tstats_addr, sizeof(tstats));
 668
 669         p_stats->fcoe_rx_byte_cnt = HILO_64_REGPAIR(tstats.fcoe_rx_byte_cnt);
 670         p_stats->fcoe_rx_data_pkt_cnt =
 671             HILO_64_REGPAIR(tstats.fcoe_rx_data_pkt_cnt);
 672         p_stats->fcoe_rx_xfer_pkt_cnt =
 673             HILO_64_REGPAIR(tstats.fcoe_rx_xfer_pkt_cnt);
 674         p_stats->fcoe_rx_other_pkt_cnt =
 675             HILO_64_REGPAIR(tstats.fcoe_rx_other_pkt_cnt);
 676
 677         p_stats->fcoe_silent_drop_pkt_cmdq_full_cnt =
 678             le32_to_cpu(tstats.fcoe_silent_drop_pkt_cmdq_full_cnt);
 679         p_stats->fcoe_silent_drop_pkt_rq_full_cnt =
 680             le32_to_cpu(tstats.fcoe_silent_drop_pkt_rq_full_cnt);
 681         p_stats->fcoe_silent_drop_pkt_crc_error_cnt =
 682             le32_to_cpu(tstats.fcoe_silent_drop_pkt_crc_error_cnt);
 683         p_stats->fcoe_silent_drop_pkt_task_invalid_cnt =
 684             le32_to_cpu(tstats.fcoe_silent_drop_pkt_task_invalid_cnt);
 685         p_stats->fcoe_silent_drop_total_pkt_cnt =
 686             le32_to_cpu(tstats.fcoe_silent_drop_total_pkt_cnt);
 687 }
 688
 689 static void _qed_fcoe_get_pstats(struct qed_hwfn *p_hwfn,
 690                                  struct qed_ptt *p_ptt,
 691                                  struct qed_fcoe_stats *p_stats)
 692 {
 693         struct fcoe_tx_stat pstats;
 694         u32 pstats_addr;
 695
 696         memset(&pstats, 0, sizeof(pstats));
 697         pstats_addr = BAR0_MAP_REG_PSDM_RAM +
 698             PSTORM_FCOE_TX_STATS_OFFSET(p_hwfn->rel_pf_id);
 699         qed_memcpy_from(p_hwfn, p_ptt, &pstats, pstats_addr, sizeof(pstats));
 700
 701         p_stats->fcoe_tx_byte_cnt = HILO_64_REGPAIR(pstats.fcoe_tx_byte_cnt);
 702         p_stats->fcoe_tx_data_pkt_cnt =
 703             HILO_64_REGPAIR(pstats.fcoe_tx_data_pkt_cnt);
 704         p_stats->fcoe_tx_xfer_pkt_cnt =
 705             HILO_64_REGPAIR(pstats.fcoe_tx_xfer_pkt_cnt);
 706         p_stats->fcoe_tx_other_pkt_cnt =
 707             HILO_64_REGPAIR(pstats.fcoe_tx_other_pkt_cnt);
 708 }
 709
 710 static int qed_fcoe_get_stats(struct qed_hwfn *p_hwfn,
 711                               struct qed_fcoe_stats *p_stats)
 712 {
 713         struct qed_ptt *p_ptt;
 714
 715         memset(p_stats, 0, sizeof(*p_stats));
 716
 717         p_ptt = qed_ptt_acquire(p_hwfn);
 718
 719         if (!p_ptt) {
 720                 DP_ERR(p_hwfn, "Failed to acquire ptt\n");
 721                 return -EINVAL;
 722         }
 723
 724         _qed_fcoe_get_tstats(p_hwfn, p_ptt, p_stats);
 725         _qed_fcoe_get_pstats(p_hwfn, p_ptt, p_stats);
 726
 727         qed_ptt_release(p_hwfn, p_ptt);
 728
 729         return 0;
 730 }
 731
 732 struct qed_hash_fcoe_con {
 733         struct hlist_node node;
 734         struct qed_fcoe_conn *con;
 735 };
 736
 737 static int qed_fill_fcoe_dev_info(struct qed_dev *cdev,
 738                                   struct qed_dev_fcoe_info *info)
 739 {
 740         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
 741         int rc;
 742
 743         memset(info, 0, sizeof(*info));
 744         rc = qed_fill_dev_info(cdev, &info->common);
 745
 746         info->primary_dbq_rq_addr =
 747             qed_fcoe_get_primary_bdq_prod(hwfn, BDQ_ID_RQ);
 748         info->secondary_bdq_rq_addr =
 749             qed_fcoe_get_secondary_bdq_prod(hwfn, BDQ_ID_RQ);
 750
 751         info->wwpn = hwfn->mcp_info->func_info.wwn_port;
 752         info->wwnn = hwfn->mcp_info->func_info.wwn_node;
 753
 754         info->num_cqs = FEAT_NUM(hwfn, QED_FCOE_CQ);
 755
 756         return rc;
 757 }
 758
 759 static void qed_register_fcoe_ops(struct qed_dev *cdev,
 760                                   struct qed_fcoe_cb_ops *ops, void *cookie)
 761 {
 762         cdev->protocol_ops.fcoe = ops;
 763         cdev->ops_cookie = cookie;
 764 }
 765
 766 static struct qed_hash_fcoe_con *qed_fcoe_get_hash(struct qed_dev *cdev,
 767                                                    u32 handle)
 768 {
 769         struct qed_hash_fcoe_con *hash_con = NULL;
 770
 771         if (!(cdev->flags & QED_FLAG_STORAGE_STARTED))
 772                 return NULL;
 773
 774         hash_for_each_possible(cdev->connections, hash_con, node, handle) {
 775                 if (hash_con->con->icid == handle)
 776                         break;
 777         }
 778
 779         if (!hash_con || (hash_con->con->icid != handle))
 780                 return NULL;
 781
 782         return hash_con;
 783 }
 784
 785 static int qed_fcoe_stop(struct qed_dev *cdev)
 786 {
 787         struct qed_ptt *p_ptt;
 788         int rc;
 789
 790         if (!(cdev->flags & QED_FLAG_STORAGE_STARTED)) {
 791                 DP_NOTICE(cdev, "fcoe already stopped\n");
 792                 return 0;
 793         }
 794
 795         if (!hash_empty(cdev->connections)) {
 796                 DP_NOTICE(cdev,
 797                           "Can't stop fcoe - not all connections were returned\n");
 798                 return -EINVAL;
 799         }
 800
 801         p_ptt = qed_ptt_acquire(QED_LEADING_HWFN(cdev));
 802         if (!p_ptt)
 803                 return -EAGAIN;
 804
 805         /* Stop the fcoe */
 806         rc = qed_sp_fcoe_func_stop(QED_LEADING_HWFN(cdev), p_ptt,
 807                                    QED_SPQ_MODE_EBLOCK, NULL);
 808         cdev->flags &= ~QED_FLAG_STORAGE_STARTED;
 809         qed_ptt_release(QED_LEADING_HWFN(cdev), p_ptt);
 810
 811         return rc;
 812 }
 813
 814 static int qed_fcoe_start(struct qed_dev *cdev, struct qed_fcoe_tid *tasks)
 815 {
 816         int rc;
 817
 818         if (cdev->flags & QED_FLAG_STORAGE_STARTED) {
 819                 DP_NOTICE(cdev, "fcoe already started;\n");
 820                 return 0;
 821         }
 822
 823         rc = qed_sp_fcoe_func_start(QED_LEADING_HWFN(cdev),
 824                                     QED_SPQ_MODE_EBLOCK, NULL);
 825         if (rc) {
 826                 DP_NOTICE(cdev, "Failed to start fcoe\n");
 827                 return rc;
 828         }
 829
 830         cdev->flags |= QED_FLAG_STORAGE_STARTED;
 831         hash_init(cdev->connections);
 832
 833         if (tasks) {
 834                 struct qed_tid_mem *tid_info = kzalloc(sizeof(*tid_info),
 835                                                        GFP_ATOMIC);
 836
 837                 if (!tid_info) {
 838                         DP_NOTICE(cdev,
 839                                   "Failed to allocate tasks information\n");
 840                         qed_fcoe_stop(cdev);
 841                         return -ENOMEM;
 842                 }
 843
 844                 rc = qed_cxt_get_tid_mem_info(QED_LEADING_HWFN(cdev), tid_info);
 845                 if (rc) {
 846                         DP_NOTICE(cdev, "Failed to gather task information\n");
 847                         qed_fcoe_stop(cdev);
 848                         kfree(tid_info);
 849                         return rc;
 850                 }
 851
 852                 /* Fill task information */
 853                 tasks->size = tid_info->tid_size;
 854                 tasks->num_tids_per_block = tid_info->num_tids_per_block;
 855                 memcpy(tasks->blocks, tid_info->blocks,
 856                        MAX_TID_BLOCKS_FCOE * sizeof(u8 *));
 857
 858                 kfree(tid_info);
 859         }
 860
 861         return 0;
 862 }
 863
 864 static int qed_fcoe_acquire_conn(struct qed_dev *cdev,
 865                                  u32 *handle,
 866                                  u32 *fw_cid, void __iomem **p_doorbell)
 867 {
 868         struct qed_hash_fcoe_con *hash_con;
 869         int rc;
 870
 871         /* Allocate a hashed connection */
 872         hash_con = kzalloc(sizeof(*hash_con), GFP_KERNEL);
 873         if (!hash_con) {
 874                 DP_NOTICE(cdev, "Failed to allocate hashed connection\n");
 875                 return -ENOMEM;
 876         }
 877
 878         /* Acquire the connection */
 879         rc = qed_fcoe_acquire_connection(QED_LEADING_HWFN(cdev), NULL,
 880                                          &hash_con->con);
 881         if (rc) {
 882                 DP_NOTICE(cdev, "Failed to acquire Connection\n");
 883                 kfree(hash_con);
 884                 return rc;
 885         }
 886
 887         /* Added the connection to hash table */
 888         *handle = hash_con->con->icid;
 889         *fw_cid = hash_con->con->fw_cid;
 890         hash_add(cdev->connections, &hash_con->node, *handle);
 891
 892         if (p_doorbell)
 893                 *p_doorbell = qed_fcoe_get_db_addr(QED_LEADING_HWFN(cdev),
 894                                                    *handle);
 895
 896         return 0;
 897 }
 898
 899 static int qed_fcoe_release_conn(struct qed_dev *cdev, u32 handle)
 900 {
 901         struct qed_hash_fcoe_con *hash_con;
 902
 903         hash_con = qed_fcoe_get_hash(cdev, handle);
 904         if (!hash_con) {
 905                 DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
 906                           handle);
 907                 return -EINVAL;
 908         }
 909
 910         hlist_del(&hash_con->node);
 911         qed_fcoe_release_connection(QED_LEADING_HWFN(cdev), hash_con->con);
 912         kfree(hash_con);
 913
 914         return 0;
 915 }
 916
 917 static int qed_fcoe_offload_conn(struct qed_dev *cdev,
 918                                  u32 handle,
 919                                  struct qed_fcoe_params_offload *conn_info)
 920 {
 921         struct qed_hash_fcoe_con *hash_con;
 922         struct qed_fcoe_conn *con;
 923
 924         hash_con = qed_fcoe_get_hash(cdev, handle);
 925         if (!hash_con) {
 926                 DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
 927                           handle);
 928                 return -EINVAL;
 929         }
 930
 931         /* Update the connection with information from the params */
 932         con = hash_con->con;
 933
 934         con->sq_pbl_addr = conn_info->sq_pbl_addr;
 935         con->sq_curr_page_addr = conn_info->sq_curr_page_addr;
 936         con->sq_next_page_addr = conn_info->sq_next_page_addr;
 937         con->tx_max_fc_pay_len = conn_info->tx_max_fc_pay_len;
 938         con->e_d_tov_timer_val = conn_info->e_d_tov_timer_val;
 939         con->rec_tov_timer_val = conn_info->rec_tov_timer_val;
 940         con->rx_max_fc_pay_len = conn_info->rx_max_fc_pay_len;
 941         con->vlan_tag = conn_info->vlan_tag;
 942         con->max_conc_seqs_c3 = conn_info->max_conc_seqs_c3;
 943         con->flags = conn_info->flags;
 944         con->def_q_idx = conn_info->def_q_idx;
 945
 946         con->src_mac_addr_hi = (conn_info->src_mac[5] << 8) |
 947             conn_info->src_mac[4];
 948         con->src_mac_addr_mid = (conn_info->src_mac[3] << 8) |
 949             conn_info->src_mac[2];
 950         con->src_mac_addr_lo = (conn_info->src_mac[1] << 8) |
 951             conn_info->src_mac[0];
 952         con->dst_mac_addr_hi = (conn_info->dst_mac[5] << 8) |
 953             conn_info->dst_mac[4];
 954         con->dst_mac_addr_mid = (conn_info->dst_mac[3] << 8) |
 955             conn_info->dst_mac[2];
 956         con->dst_mac_addr_lo = (conn_info->dst_mac[1] << 8) |
 957             conn_info->dst_mac[0];
 958
 959         con->s_id.addr_hi = conn_info->s_id.addr_hi;
 960         con->s_id.addr_mid = conn_info->s_id.addr_mid;
 961         con->s_id.addr_lo = conn_info->s_id.addr_lo;
 962         con->d_id.addr_hi = conn_info->d_id.addr_hi;
 963         con->d_id.addr_mid = conn_info->d_id.addr_mid;
 964         con->d_id.addr_lo = conn_info->d_id.addr_lo;
 965
 966         return qed_sp_fcoe_conn_offload(QED_LEADING_HWFN(cdev), con,
 967                                         QED_SPQ_MODE_EBLOCK, NULL);
 968 }
 969
 970 static int qed_fcoe_destroy_conn(struct qed_dev *cdev,
 971                                  u32 handle, dma_addr_t terminate_params)
 972 {
 973         struct qed_hash_fcoe_con *hash_con;
 974         struct qed_fcoe_conn *con;
 975
 976         hash_con = qed_fcoe_get_hash(cdev, handle);
 977         if (!hash_con) {
 978                 DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
 979                           handle);
 980                 return -EINVAL;
 981         }
 982
 983         /* Update the connection with information from the params */
 984         con = hash_con->con;
 985         con->terminate_params = terminate_params;
 986
 987         return qed_sp_fcoe_conn_destroy(QED_LEADING_HWFN(cdev), con,
 988                                         QED_SPQ_MODE_EBLOCK, NULL);
 989 }
 990
 991 static int qed_fcoe_stats(struct qed_dev *cdev, struct qed_fcoe_stats *stats)
 992 {
 993         return qed_fcoe_get_stats(QED_LEADING_HWFN(cdev), stats);
 994 }
 995
 996 void qed_get_protocol_stats_fcoe(struct qed_dev *cdev,
 997                                  struct qed_mcp_fcoe_stats *stats)
 998 {
 999         struct qed_fcoe_stats proto_stats;
1000
1001         /* Retrieve FW statistics */
1002         memset(&proto_stats, 0, sizeof(proto_stats));
1003         if (qed_fcoe_stats(cdev, &proto_stats)) {
1004                 DP_VERBOSE(cdev, QED_MSG_STORAGE,
1005                            "Failed to collect FCoE statistics\n");
1006                 return;
1007         }
1008
1009         /* Translate FW statistics into struct */
1010         stats->rx_pkts = proto_stats.fcoe_rx_data_pkt_cnt +
1011                          proto_stats.fcoe_rx_xfer_pkt_cnt +
1012                          proto_stats.fcoe_rx_other_pkt_cnt;
1013         stats->tx_pkts = proto_stats.fcoe_tx_data_pkt_cnt +
1014                          proto_stats.fcoe_tx_xfer_pkt_cnt +
1015                          proto_stats.fcoe_tx_other_pkt_cnt;
1016         stats->fcs_err = proto_stats.fcoe_silent_drop_pkt_crc_error_cnt;
1017
1018         /* Request protocol driver to fill-in the rest */
1019         if (cdev->protocol_ops.fcoe && cdev->ops_cookie) {
1020                 struct qed_fcoe_cb_ops *ops = cdev->protocol_ops.fcoe;
1021                 void *cookie = cdev->ops_cookie;
1022
1023                 if (ops->get_login_failures)
1024                         stats->login_failure = ops->get_login_failures(cookie);
1025         }
1026 }
1027
1028 static const struct qed_fcoe_ops qed_fcoe_ops_pass = {
1029         .common = &qed_common_ops_pass,
1030         .ll2 = &qed_ll2_ops_pass,
1031         .fill_dev_info = &qed_fill_fcoe_dev_info,
1032         .start = &qed_fcoe_start,
1033         .stop = &qed_fcoe_stop,
1034         .register_ops = &qed_register_fcoe_ops,
1035         .acquire_conn = &qed_fcoe_acquire_conn,
1036         .release_conn = &qed_fcoe_release_conn,
1037         .offload_conn = &qed_fcoe_offload_conn,
1038         .destroy_conn = &qed_fcoe_destroy_conn,
1039         .get_stats = &qed_fcoe_stats,
1040 };
1041
1042 const struct qed_fcoe_ops *qed_get_fcoe_ops(void)
1043 {
1044         return &qed_fcoe_ops_pass;
1045 }
1046 EXPORT_SYMBOL(qed_get_fcoe_ops);
1047
1048 void qed_put_fcoe_ops(void)
1049 {
1050 }
1051 EXPORT_SYMBOL(qed_put_fcoe_ops);