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                 rc = -EINVAL;
 151                 goto err;
 152         }
 153
 154         p_data->mtu = cpu_to_le16(fcoe_pf_params->mtu);
 155         tmp = cpu_to_le16(fcoe_pf_params->sq_num_pbl_pages);
 156         p_data->sq_num_pages_in_pbl = tmp;
 157
 158         rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_FCOE, &dummy_cid);
 159         if (rc)
 160                 goto err;
 161
 162         cxt_info.iid = dummy_cid;
 163         rc = qed_cxt_get_cid_info(p_hwfn, &cxt_info);
 164         if (rc) {
 165                 DP_NOTICE(p_hwfn, "Cannot find context info for dummy cid=%d\n",
 166                           dummy_cid);
 167                 goto err;
 168         }
 169         p_cxt = cxt_info.p_cxt;
 170         memset(p_cxt, 0, sizeof(*p_cxt));
 171
 172         SET_FIELD(p_cxt->tstorm_ag_context.flags3,
 173                   E4_TSTORM_FCOE_CONN_AG_CTX_DUMMY_TIMER_CF_EN, 1);
 174
 175         fcoe_pf_params->dummy_icid = (u16)dummy_cid;
 176
 177         tmp = cpu_to_le16(fcoe_pf_params->num_tasks);
 178         p_data->func_params.num_tasks = tmp;
 179         p_data->func_params.log_page_size = fcoe_pf_params->log_page_size;
 180         p_data->func_params.debug_mode = fcoe_pf_params->debug_mode;
 181
 182         DMA_REGPAIR_LE(p_data->q_params.glbl_q_params_addr,
 183                        fcoe_pf_params->glbl_q_params_addr);
 184
 185         tmp = cpu_to_le16(fcoe_pf_params->cq_num_entries);
 186         p_data->q_params.cq_num_entries = tmp;
 187
 188         tmp = cpu_to_le16(fcoe_pf_params->cmdq_num_entries);
 189         p_data->q_params.cmdq_num_entries = tmp;
 190
 191         tmp = fcoe_pf_params->num_cqs;
 192         p_data->q_params.num_queues = (u8)tmp;
 193
 194         tmp = (u16)p_hwfn->hw_info.resc_start[QED_CMDQS_CQS];
 195         p_data->q_params.queue_relative_offset = (u8)tmp;
 196
 197         for (i = 0; i < fcoe_pf_params->num_cqs; i++) {
 198                 u16 igu_sb_id;
 199
 200                 igu_sb_id = qed_get_igu_sb_id(p_hwfn, i);
 201                 tmp = cpu_to_le16(igu_sb_id);
 202                 p_data->q_params.cq_cmdq_sb_num_arr[i] = tmp;
 203         }
 204
 205         p_data->q_params.cq_sb_pi = fcoe_pf_params->gl_rq_pi;
 206         p_data->q_params.cmdq_sb_pi = fcoe_pf_params->gl_cmd_pi;
 207
 208         p_data->q_params.bdq_resource_id = (u8)RESC_START(p_hwfn, QED_BDQ);
 209
 210         DMA_REGPAIR_LE(p_data->q_params.bdq_pbl_base_address[BDQ_ID_RQ],
 211                        fcoe_pf_params->bdq_pbl_base_addr[BDQ_ID_RQ]);
 212         p_data->q_params.bdq_pbl_num_entries[BDQ_ID_RQ] =
 213             fcoe_pf_params->bdq_pbl_num_entries[BDQ_ID_RQ];
 214         tmp = fcoe_pf_params->bdq_xoff_threshold[BDQ_ID_RQ];
 215         p_data->q_params.bdq_xoff_threshold[BDQ_ID_RQ] = cpu_to_le16(tmp);
 216         tmp = fcoe_pf_params->bdq_xon_threshold[BDQ_ID_RQ];
 217         p_data->q_params.bdq_xon_threshold[BDQ_ID_RQ] = cpu_to_le16(tmp);
 218
 219         DMA_REGPAIR_LE(p_data->q_params.bdq_pbl_base_address[BDQ_ID_IMM_DATA],
 220                        fcoe_pf_params->bdq_pbl_base_addr[BDQ_ID_IMM_DATA]);
 221         p_data->q_params.bdq_pbl_num_entries[BDQ_ID_IMM_DATA] =
 222             fcoe_pf_params->bdq_pbl_num_entries[BDQ_ID_IMM_DATA];
 223         tmp = fcoe_pf_params->bdq_xoff_threshold[BDQ_ID_IMM_DATA];
 224         p_data->q_params.bdq_xoff_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(tmp);
 225         tmp = fcoe_pf_params->bdq_xon_threshold[BDQ_ID_IMM_DATA];
 226         p_data->q_params.bdq_xon_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(tmp);
 227         tmp = fcoe_pf_params->rq_buffer_size;
 228         p_data->q_params.rq_buffer_size = cpu_to_le16(tmp);
 229
 230         if (fcoe_pf_params->is_target) {
 231                 SET_FIELD(p_data->q_params.q_validity,
 232                           SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
 233                 if (p_data->q_params.bdq_pbl_num_entries[BDQ_ID_IMM_DATA])
 234                         SET_FIELD(p_data->q_params.q_validity,
 235                                   SCSI_INIT_FUNC_QUEUES_IMM_DATA_VALID, 1);
 236                 SET_FIELD(p_data->q_params.q_validity,
 237                           SCSI_INIT_FUNC_QUEUES_CMD_VALID, 1);
 238         } else {
 239                 SET_FIELD(p_data->q_params.q_validity,
 240                           SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
 241         }
 242
 243         rc = qed_spq_post(p_hwfn, p_ent, NULL);
 244
 245         return rc;
 246
 247 err:
 248         qed_sp_destroy_request(p_hwfn, p_ent);
 249         return rc;
 250 }
 251
 252 static int
 253 qed_sp_fcoe_conn_offload(struct qed_hwfn *p_hwfn,
 254                          struct qed_fcoe_conn *p_conn,
 255                          enum spq_mode comp_mode,
 256                          struct qed_spq_comp_cb *p_comp_addr)
 257 {
 258         struct fcoe_conn_offload_ramrod_params *p_ramrod = NULL;
 259         struct fcoe_conn_offload_ramrod_data *p_data;
 260         struct qed_spq_entry *p_ent = NULL;
 261         struct qed_sp_init_data init_data;
 262         u16 physical_q0, tmp;
 263         int rc;
 264
 265         /* Get SPQ entry */
 266         memset(&init_data, 0, sizeof(init_data));
 267         init_data.cid = p_conn->icid;
 268         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
 269         init_data.comp_mode = comp_mode;
 270         init_data.p_comp_data = p_comp_addr;
 271
 272         rc = qed_sp_init_request(p_hwfn, &p_ent,
 273                                  FCOE_RAMROD_CMD_ID_OFFLOAD_CONN,
 274                                  PROTOCOLID_FCOE, &init_data);
 275         if (rc)
 276                 return rc;
 277
 278         p_ramrod = &p_ent->ramrod.fcoe_conn_ofld;
 279         p_data = &p_ramrod->offload_ramrod_data;
 280
 281         /* Transmission PQ is the first of the PF */
 282         physical_q0 = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD);
 283         p_conn->physical_q0 = cpu_to_le16(physical_q0);
 284         p_data->physical_q0 = cpu_to_le16(physical_q0);
 285
 286         p_data->conn_id = cpu_to_le16(p_conn->conn_id);
 287         DMA_REGPAIR_LE(p_data->sq_pbl_addr, p_conn->sq_pbl_addr);
 288         DMA_REGPAIR_LE(p_data->sq_curr_page_addr, p_conn->sq_curr_page_addr);
 289         DMA_REGPAIR_LE(p_data->sq_next_page_addr, p_conn->sq_next_page_addr);
 290         DMA_REGPAIR_LE(p_data->xferq_pbl_addr, p_conn->xferq_pbl_addr);
 291         DMA_REGPAIR_LE(p_data->xferq_curr_page_addr, p_conn->xferq_addr[0]);
 292         DMA_REGPAIR_LE(p_data->xferq_next_page_addr, p_conn->xferq_addr[1]);
 293
 294         DMA_REGPAIR_LE(p_data->respq_pbl_addr, p_conn->confq_pbl_addr);
 295         DMA_REGPAIR_LE(p_data->respq_curr_page_addr, p_conn->confq_addr[0]);
 296         DMA_REGPAIR_LE(p_data->respq_next_page_addr, p_conn->confq_addr[1]);
 297
 298         p_data->dst_mac_addr_lo = cpu_to_le16(p_conn->dst_mac_addr_lo);
 299         p_data->dst_mac_addr_mid = cpu_to_le16(p_conn->dst_mac_addr_mid);
 300         p_data->dst_mac_addr_hi = cpu_to_le16(p_conn->dst_mac_addr_hi);
 301         p_data->src_mac_addr_lo = cpu_to_le16(p_conn->src_mac_addr_lo);
 302         p_data->src_mac_addr_mid = cpu_to_le16(p_conn->src_mac_addr_mid);
 303         p_data->src_mac_addr_hi = cpu_to_le16(p_conn->src_mac_addr_hi);
 304
 305         tmp = cpu_to_le16(p_conn->tx_max_fc_pay_len);
 306         p_data->tx_max_fc_pay_len = tmp;
 307         tmp = cpu_to_le16(p_conn->e_d_tov_timer_val);
 308         p_data->e_d_tov_timer_val = tmp;
 309         tmp = cpu_to_le16(p_conn->rec_tov_timer_val);
 310         p_data->rec_rr_tov_timer_val = tmp;
 311         tmp = cpu_to_le16(p_conn->rx_max_fc_pay_len);
 312         p_data->rx_max_fc_pay_len = tmp;
 313
 314         p_data->vlan_tag = cpu_to_le16(p_conn->vlan_tag);
 315         p_data->s_id.addr_hi = p_conn->s_id.addr_hi;
 316         p_data->s_id.addr_mid = p_conn->s_id.addr_mid;
 317         p_data->s_id.addr_lo = p_conn->s_id.addr_lo;
 318         p_data->max_conc_seqs_c3 = p_conn->max_conc_seqs_c3;
 319         p_data->d_id.addr_hi = p_conn->d_id.addr_hi;
 320         p_data->d_id.addr_mid = p_conn->d_id.addr_mid;
 321         p_data->d_id.addr_lo = p_conn->d_id.addr_lo;
 322         p_data->flags = p_conn->flags;
 323         if (test_bit(QED_MF_UFP_SPECIFIC, &p_hwfn->cdev->mf_bits))
 324                 SET_FIELD(p_data->flags,
 325                           FCOE_CONN_OFFLOAD_RAMROD_DATA_B_SINGLE_VLAN, 1);
 326         p_data->def_q_idx = p_conn->def_q_idx;
 327
 328         return qed_spq_post(p_hwfn, p_ent, NULL);
 329 }
 330
 331 static int
 332 qed_sp_fcoe_conn_destroy(struct qed_hwfn *p_hwfn,
 333                          struct qed_fcoe_conn *p_conn,
 334                          enum spq_mode comp_mode,
 335                          struct qed_spq_comp_cb *p_comp_addr)
 336 {
 337         struct fcoe_conn_terminate_ramrod_params *p_ramrod = NULL;
 338         struct qed_spq_entry *p_ent = NULL;
 339         struct qed_sp_init_data init_data;
 340         int rc = 0;
 341
 342         /* Get SPQ entry */
 343         memset(&init_data, 0, sizeof(init_data));
 344         init_data.cid = p_conn->icid;
 345         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
 346         init_data.comp_mode = comp_mode;
 347         init_data.p_comp_data = p_comp_addr;
 348
 349         rc = qed_sp_init_request(p_hwfn, &p_ent,
 350                                  FCOE_RAMROD_CMD_ID_TERMINATE_CONN,
 351                                  PROTOCOLID_FCOE, &init_data);
 352         if (rc)
 353                 return rc;
 354
 355         p_ramrod = &p_ent->ramrod.fcoe_conn_terminate;
 356         DMA_REGPAIR_LE(p_ramrod->terminate_ramrod_data.terminate_params_addr,
 357                        p_conn->terminate_params);
 358
 359         return qed_spq_post(p_hwfn, p_ent, NULL);
 360 }
 361
 362 static int
 363 qed_sp_fcoe_func_stop(struct qed_hwfn *p_hwfn,
 364                       struct qed_ptt *p_ptt,
 365                       enum spq_mode comp_mode,
 366                       struct qed_spq_comp_cb *p_comp_addr)
 367 {
 368         struct qed_spq_entry *p_ent = NULL;
 369         struct qed_sp_init_data init_data;
 370         u32 active_segs = 0;
 371         int rc = 0;
 372
 373         /* Get SPQ entry */
 374         memset(&init_data, 0, sizeof(init_data));
 375         init_data.cid = p_hwfn->pf_params.fcoe_pf_params.dummy_icid;
 376         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
 377         init_data.comp_mode = comp_mode;
 378         init_data.p_comp_data = p_comp_addr;
 379
 380         rc = qed_sp_init_request(p_hwfn, &p_ent,
 381                                  FCOE_RAMROD_CMD_ID_DESTROY_FUNC,
 382                                  PROTOCOLID_FCOE, &init_data);
 383         if (rc)
 384                 return rc;
 385
 386         active_segs = qed_rd(p_hwfn, p_ptt, TM_REG_PF_ENABLE_TASK);
 387         active_segs &= ~BIT(QED_CXT_FCOE_TID_SEG);
 388         qed_wr(p_hwfn, p_ptt, TM_REG_PF_ENABLE_TASK, active_segs);
 389
 390         return qed_spq_post(p_hwfn, p_ent, NULL);
 391 }
 392
 393 static int
 394 qed_fcoe_allocate_connection(struct qed_hwfn *p_hwfn,
 395                              struct qed_fcoe_conn **p_out_conn)
 396 {
 397         struct qed_fcoe_conn *p_conn = NULL;
 398         void *p_addr;
 399         u32 i;
 400
 401         spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
 402         if (!list_empty(&p_hwfn->p_fcoe_info->free_list))
 403                 p_conn =
 404                     list_first_entry(&p_hwfn->p_fcoe_info->free_list,
 405                                      struct qed_fcoe_conn, list_entry);
 406         if (p_conn) {
 407                 list_del(&p_conn->list_entry);
 408                 spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
 409                 *p_out_conn = p_conn;
 410                 return 0;
 411         }
 412         spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
 413
 414         p_conn = kzalloc(sizeof(*p_conn), GFP_KERNEL);
 415         if (!p_conn)
 416                 return -ENOMEM;
 417
 418         p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
 419                                     QED_CHAIN_PAGE_SIZE,
 420                                     &p_conn->xferq_pbl_addr, GFP_KERNEL);
 421         if (!p_addr)
 422                 goto nomem_pbl_xferq;
 423         p_conn->xferq_pbl_addr_virt_addr = p_addr;
 424
 425         for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++) {
 426                 p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
 427                                             QED_CHAIN_PAGE_SIZE,
 428                                             &p_conn->xferq_addr[i], GFP_KERNEL);
 429                 if (!p_addr)
 430                         goto nomem_xferq;
 431                 p_conn->xferq_addr_virt_addr[i] = p_addr;
 432
 433                 p_addr = p_conn->xferq_pbl_addr_virt_addr;
 434                 ((dma_addr_t *)p_addr)[i] = p_conn->xferq_addr[i];
 435         }
 436
 437         p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
 438                                     QED_CHAIN_PAGE_SIZE,
 439                                     &p_conn->confq_pbl_addr, GFP_KERNEL);
 440         if (!p_addr)
 441                 goto nomem_xferq;
 442         p_conn->confq_pbl_addr_virt_addr = p_addr;
 443
 444         for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++) {
 445                 p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
 446                                             QED_CHAIN_PAGE_SIZE,
 447                                             &p_conn->confq_addr[i], GFP_KERNEL);
 448                 if (!p_addr)
 449                         goto nomem_confq;
 450                 p_conn->confq_addr_virt_addr[i] = p_addr;
 451
 452                 p_addr = p_conn->confq_pbl_addr_virt_addr;
 453                 ((dma_addr_t *)p_addr)[i] = p_conn->confq_addr[i];
 454         }
 455
 456         p_conn->free_on_delete = true;
 457         *p_out_conn = p_conn;
 458         return 0;
 459
 460 nomem_confq:
 461         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 462                           QED_CHAIN_PAGE_SIZE,
 463                           p_conn->confq_pbl_addr_virt_addr,
 464                           p_conn->confq_pbl_addr);
 465         for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++)
 466                 if (p_conn->confq_addr_virt_addr[i])
 467                         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 468                                           QED_CHAIN_PAGE_SIZE,
 469                                           p_conn->confq_addr_virt_addr[i],
 470                                           p_conn->confq_addr[i]);
 471 nomem_xferq:
 472         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 473                           QED_CHAIN_PAGE_SIZE,
 474                           p_conn->xferq_pbl_addr_virt_addr,
 475                           p_conn->xferq_pbl_addr);
 476         for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++)
 477                 if (p_conn->xferq_addr_virt_addr[i])
 478                         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 479                                           QED_CHAIN_PAGE_SIZE,
 480                                           p_conn->xferq_addr_virt_addr[i],
 481                                           p_conn->xferq_addr[i]);
 482 nomem_pbl_xferq:
 483         kfree(p_conn);
 484         return -ENOMEM;
 485 }
 486
 487 static void qed_fcoe_free_connection(struct qed_hwfn *p_hwfn,
 488                                      struct qed_fcoe_conn *p_conn)
 489 {
 490         u32 i;
 491
 492         if (!p_conn)
 493                 return;
 494
 495         if (p_conn->confq_pbl_addr_virt_addr)
 496                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 497                                   QED_CHAIN_PAGE_SIZE,
 498                                   p_conn->confq_pbl_addr_virt_addr,
 499                                   p_conn->confq_pbl_addr);
 500
 501         for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++) {
 502                 if (!p_conn->confq_addr_virt_addr[i])
 503                         continue;
 504                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 505                                   QED_CHAIN_PAGE_SIZE,
 506                                   p_conn->confq_addr_virt_addr[i],
 507                                   p_conn->confq_addr[i]);
 508         }
 509
 510         if (p_conn->xferq_pbl_addr_virt_addr)
 511                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 512                                   QED_CHAIN_PAGE_SIZE,
 513                                   p_conn->xferq_pbl_addr_virt_addr,
 514                                   p_conn->xferq_pbl_addr);
 515
 516         for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++) {
 517                 if (!p_conn->xferq_addr_virt_addr[i])
 518                         continue;
 519                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 520                                   QED_CHAIN_PAGE_SIZE,
 521                                   p_conn->xferq_addr_virt_addr[i],
 522                                   p_conn->xferq_addr[i]);
 523         }
 524         kfree(p_conn);
 525 }
 526
 527 static void __iomem *qed_fcoe_get_db_addr(struct qed_hwfn *p_hwfn, u32 cid)
 528 {
 529         return (u8 __iomem *)p_hwfn->doorbells +
 530                qed_db_addr(cid, DQ_DEMS_LEGACY);
 531 }
 532
 533 static void __iomem *qed_fcoe_get_primary_bdq_prod(struct qed_hwfn *p_hwfn,
 534                                                    u8 bdq_id)
 535 {
 536         if (RESC_NUM(p_hwfn, QED_BDQ)) {
 537                 return (u8 __iomem *)p_hwfn->regview +
 538                        GTT_BAR0_MAP_REG_MSDM_RAM +
 539                        MSTORM_SCSI_BDQ_EXT_PROD_OFFSET(RESC_START(p_hwfn,
 540                                                                   QED_BDQ),
 541                                                        bdq_id);
 542         } else {
 543                 DP_NOTICE(p_hwfn, "BDQ is not allocated!\n");
 544                 return NULL;
 545         }
 546 }
 547
 548 static void __iomem *qed_fcoe_get_secondary_bdq_prod(struct qed_hwfn *p_hwfn,
 549                                                      u8 bdq_id)
 550 {
 551         if (RESC_NUM(p_hwfn, QED_BDQ)) {
 552                 return (u8 __iomem *)p_hwfn->regview +
 553                        GTT_BAR0_MAP_REG_TSDM_RAM +
 554                        TSTORM_SCSI_BDQ_EXT_PROD_OFFSET(RESC_START(p_hwfn,
 555                                                                   QED_BDQ),
 556                                                        bdq_id);
 557         } else {
 558                 DP_NOTICE(p_hwfn, "BDQ is not allocated!\n");
 559                 return NULL;
 560         }
 561 }
 562
 563 int qed_fcoe_alloc(struct qed_hwfn *p_hwfn)
 564 {
 565         struct qed_fcoe_info *p_fcoe_info;
 566
 567         /* Allocate LL2's set struct */
 568         p_fcoe_info = kzalloc(sizeof(*p_fcoe_info), GFP_KERNEL);
 569         if (!p_fcoe_info) {
 570                 DP_NOTICE(p_hwfn, "Failed to allocate qed_fcoe_info'\n");
 571                 return -ENOMEM;
 572         }
 573         INIT_LIST_HEAD(&p_fcoe_info->free_list);
 574
 575         p_hwfn->p_fcoe_info = p_fcoe_info;
 576         return 0;
 577 }
 578
 579 void qed_fcoe_setup(struct qed_hwfn *p_hwfn)
 580 {
 581         struct e4_fcoe_task_context *p_task_ctx = NULL;
 582         int rc;
 583         u32 i;
 584
 585         spin_lock_init(&p_hwfn->p_fcoe_info->lock);
 586         for (i = 0; i < p_hwfn->pf_params.fcoe_pf_params.num_tasks; i++) {
 587                 rc = qed_cxt_get_task_ctx(p_hwfn, i,
 588                                           QED_CTX_WORKING_MEM,
 589                                           (void **)&p_task_ctx);
 590                 if (rc)
 591                         continue;
 592
 593                 memset(p_task_ctx, 0, sizeof(struct e4_fcoe_task_context));
 594                 SET_FIELD(p_task_ctx->timer_context.logical_client_0,
 595                           TIMERS_CONTEXT_VALIDLC0, 1);
 596                 SET_FIELD(p_task_ctx->timer_context.logical_client_1,
 597                           TIMERS_CONTEXT_VALIDLC1, 1);
 598                 SET_FIELD(p_task_ctx->tstorm_ag_context.flags0,
 599                           E4_TSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE, 1);
 600         }
 601 }
 602
 603 void qed_fcoe_free(struct qed_hwfn *p_hwfn)
 604 {
 605         struct qed_fcoe_conn *p_conn = NULL;
 606
 607         if (!p_hwfn->p_fcoe_info)
 608                 return;
 609
 610         while (!list_empty(&p_hwfn->p_fcoe_info->free_list)) {
 611                 p_conn = list_first_entry(&p_hwfn->p_fcoe_info->free_list,
 612                                           struct qed_fcoe_conn, list_entry);
 613                 if (!p_conn)
 614                         break;
 615                 list_del(&p_conn->list_entry);
 616                 qed_fcoe_free_connection(p_hwfn, p_conn);
 617         }
 618
 619         kfree(p_hwfn->p_fcoe_info);
 620         p_hwfn->p_fcoe_info = NULL;
 621 }
 622
 623 static int
 624 qed_fcoe_acquire_connection(struct qed_hwfn *p_hwfn,
 625                             struct qed_fcoe_conn *p_in_conn,
 626                             struct qed_fcoe_conn **p_out_conn)
 627 {
 628         struct qed_fcoe_conn *p_conn = NULL;
 629         int rc = 0;
 630         u32 icid;
 631
 632         spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
 633         rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_FCOE, &icid);
 634         spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
 635         if (rc)
 636                 return rc;
 637
 638         /* Use input connection [if provided] or allocate a new one */
 639         if (p_in_conn) {
 640                 p_conn = p_in_conn;
 641         } else {
 642                 rc = qed_fcoe_allocate_connection(p_hwfn, &p_conn);
 643                 if (rc) {
 644                         spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
 645                         qed_cxt_release_cid(p_hwfn, icid);
 646                         spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
 647                         return rc;
 648                 }
 649         }
 650
 651         p_conn->icid = icid;
 652         p_conn->fw_cid = (p_hwfn->hw_info.opaque_fid << 16) | icid;
 653         *p_out_conn = p_conn;
 654
 655         return rc;
 656 }
 657
 658 static void qed_fcoe_release_connection(struct qed_hwfn *p_hwfn,
 659                                         struct qed_fcoe_conn *p_conn)
 660 {
 661         spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
 662         list_add_tail(&p_conn->list_entry, &p_hwfn->p_fcoe_info->free_list);
 663         qed_cxt_release_cid(p_hwfn, p_conn->icid);
 664         spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
 665 }
 666
 667 static void _qed_fcoe_get_tstats(struct qed_hwfn *p_hwfn,
 668                                  struct qed_ptt *p_ptt,
 669                                  struct qed_fcoe_stats *p_stats)
 670 {
 671         struct fcoe_rx_stat tstats;
 672         u32 tstats_addr;
 673
 674         memset(&tstats, 0, sizeof(tstats));
 675         tstats_addr = BAR0_MAP_REG_TSDM_RAM +
 676             TSTORM_FCOE_RX_STATS_OFFSET(p_hwfn->rel_pf_id);
 677         qed_memcpy_from(p_hwfn, p_ptt, &tstats, tstats_addr, sizeof(tstats));
 678
 679         p_stats->fcoe_rx_byte_cnt = HILO_64_REGPAIR(tstats.fcoe_rx_byte_cnt);
 680         p_stats->fcoe_rx_data_pkt_cnt =
 681             HILO_64_REGPAIR(tstats.fcoe_rx_data_pkt_cnt);
 682         p_stats->fcoe_rx_xfer_pkt_cnt =
 683             HILO_64_REGPAIR(tstats.fcoe_rx_xfer_pkt_cnt);
 684         p_stats->fcoe_rx_other_pkt_cnt =
 685             HILO_64_REGPAIR(tstats.fcoe_rx_other_pkt_cnt);
 686
 687         p_stats->fcoe_silent_drop_pkt_cmdq_full_cnt =
 688             le32_to_cpu(tstats.fcoe_silent_drop_pkt_cmdq_full_cnt);
 689         p_stats->fcoe_silent_drop_pkt_rq_full_cnt =
 690             le32_to_cpu(tstats.fcoe_silent_drop_pkt_rq_full_cnt);
 691         p_stats->fcoe_silent_drop_pkt_crc_error_cnt =
 692             le32_to_cpu(tstats.fcoe_silent_drop_pkt_crc_error_cnt);
 693         p_stats->fcoe_silent_drop_pkt_task_invalid_cnt =
 694             le32_to_cpu(tstats.fcoe_silent_drop_pkt_task_invalid_cnt);
 695         p_stats->fcoe_silent_drop_total_pkt_cnt =
 696             le32_to_cpu(tstats.fcoe_silent_drop_total_pkt_cnt);
 697 }
 698
 699 static void _qed_fcoe_get_pstats(struct qed_hwfn *p_hwfn,
 700                                  struct qed_ptt *p_ptt,
 701                                  struct qed_fcoe_stats *p_stats)
 702 {
 703         struct fcoe_tx_stat pstats;
 704         u32 pstats_addr;
 705
 706         memset(&pstats, 0, sizeof(pstats));
 707         pstats_addr = BAR0_MAP_REG_PSDM_RAM +
 708             PSTORM_FCOE_TX_STATS_OFFSET(p_hwfn->rel_pf_id);
 709         qed_memcpy_from(p_hwfn, p_ptt, &pstats, pstats_addr, sizeof(pstats));
 710
 711         p_stats->fcoe_tx_byte_cnt = HILO_64_REGPAIR(pstats.fcoe_tx_byte_cnt);
 712         p_stats->fcoe_tx_data_pkt_cnt =
 713             HILO_64_REGPAIR(pstats.fcoe_tx_data_pkt_cnt);
 714         p_stats->fcoe_tx_xfer_pkt_cnt =
 715             HILO_64_REGPAIR(pstats.fcoe_tx_xfer_pkt_cnt);
 716         p_stats->fcoe_tx_other_pkt_cnt =
 717             HILO_64_REGPAIR(pstats.fcoe_tx_other_pkt_cnt);
 718 }
 719
 720 static int qed_fcoe_get_stats(struct qed_hwfn *p_hwfn,
 721                               struct qed_fcoe_stats *p_stats)
 722 {
 723         struct qed_ptt *p_ptt;
 724
 725         memset(p_stats, 0, sizeof(*p_stats));
 726
 727         p_ptt = qed_ptt_acquire(p_hwfn);
 728
 729         if (!p_ptt) {
 730                 DP_ERR(p_hwfn, "Failed to acquire ptt\n");
 731                 return -EINVAL;
 732         }
 733
 734         _qed_fcoe_get_tstats(p_hwfn, p_ptt, p_stats);
 735         _qed_fcoe_get_pstats(p_hwfn, p_ptt, p_stats);
 736
 737         qed_ptt_release(p_hwfn, p_ptt);
 738
 739         return 0;
 740 }
 741
 742 struct qed_hash_fcoe_con {
 743         struct hlist_node node;
 744         struct qed_fcoe_conn *con;
 745 };
 746
 747 static int qed_fill_fcoe_dev_info(struct qed_dev *cdev,
 748                                   struct qed_dev_fcoe_info *info)
 749 {
 750         struct qed_hwfn *hwfn = QED_AFFIN_HWFN(cdev);
 751         int rc;
 752
 753         memset(info, 0, sizeof(*info));
 754         rc = qed_fill_dev_info(cdev, &info->common);
 755
 756         info->primary_dbq_rq_addr =
 757             qed_fcoe_get_primary_bdq_prod(hwfn, BDQ_ID_RQ);
 758         info->secondary_bdq_rq_addr =
 759             qed_fcoe_get_secondary_bdq_prod(hwfn, BDQ_ID_RQ);
 760
 761         info->wwpn = hwfn->mcp_info->func_info.wwn_port;
 762         info->wwnn = hwfn->mcp_info->func_info.wwn_node;
 763
 764         info->num_cqs = FEAT_NUM(hwfn, QED_FCOE_CQ);
 765
 766         return rc;
 767 }
 768
 769 static void qed_register_fcoe_ops(struct qed_dev *cdev,
 770                                   struct qed_fcoe_cb_ops *ops, void *cookie)
 771 {
 772         cdev->protocol_ops.fcoe = ops;
 773         cdev->ops_cookie = cookie;
 774 }
 775
 776 static struct qed_hash_fcoe_con *qed_fcoe_get_hash(struct qed_dev *cdev,
 777                                                    u32 handle)
 778 {
 779         struct qed_hash_fcoe_con *hash_con = NULL;
 780
 781         if (!(cdev->flags & QED_FLAG_STORAGE_STARTED))
 782                 return NULL;
 783
 784         hash_for_each_possible(cdev->connections, hash_con, node, handle) {
 785                 if (hash_con->con->icid == handle)
 786                         break;
 787         }
 788
 789         if (!hash_con || (hash_con->con->icid != handle))
 790                 return NULL;
 791
 792         return hash_con;
 793 }
 794
 795 static int qed_fcoe_stop(struct qed_dev *cdev)
 796 {
 797         struct qed_ptt *p_ptt;
 798         int rc;
 799
 800         if (!(cdev->flags & QED_FLAG_STORAGE_STARTED)) {
 801                 DP_NOTICE(cdev, "fcoe already stopped\n");
 802                 return 0;
 803         }
 804
 805         if (!hash_empty(cdev->connections)) {
 806                 DP_NOTICE(cdev,
 807                           "Can't stop fcoe - not all connections were returned\n");
 808                 return -EINVAL;
 809         }
 810
 811         p_ptt = qed_ptt_acquire(QED_AFFIN_HWFN(cdev));
 812         if (!p_ptt)
 813                 return -EAGAIN;
 814
 815         /* Stop the fcoe */
 816         rc = qed_sp_fcoe_func_stop(QED_AFFIN_HWFN(cdev), p_ptt,
 817                                    QED_SPQ_MODE_EBLOCK, NULL);
 818         cdev->flags &= ~QED_FLAG_STORAGE_STARTED;
 819         qed_ptt_release(QED_AFFIN_HWFN(cdev), p_ptt);
 820
 821         return rc;
 822 }
 823
 824 static int qed_fcoe_start(struct qed_dev *cdev, struct qed_fcoe_tid *tasks)
 825 {
 826         int rc;
 827
 828         if (cdev->flags & QED_FLAG_STORAGE_STARTED) {
 829                 DP_NOTICE(cdev, "fcoe already started;\n");
 830                 return 0;
 831         }
 832
 833         rc = qed_sp_fcoe_func_start(QED_AFFIN_HWFN(cdev), QED_SPQ_MODE_EBLOCK,
 834                                     NULL);
 835         if (rc) {
 836                 DP_NOTICE(cdev, "Failed to start fcoe\n");
 837                 return rc;
 838         }
 839
 840         cdev->flags |= QED_FLAG_STORAGE_STARTED;
 841         hash_init(cdev->connections);
 842
 843         if (tasks) {
 844                 struct qed_tid_mem *tid_info = kzalloc(sizeof(*tid_info),
 845                                                        GFP_ATOMIC);
 846
 847                 if (!tid_info) {
 848                         DP_NOTICE(cdev,
 849                                   "Failed to allocate tasks information\n");
 850                         qed_fcoe_stop(cdev);
 851                         return -ENOMEM;
 852                 }
 853
 854                 rc = qed_cxt_get_tid_mem_info(QED_AFFIN_HWFN(cdev), tid_info);
 855                 if (rc) {
 856                         DP_NOTICE(cdev, "Failed to gather task information\n");
 857                         qed_fcoe_stop(cdev);
 858                         kfree(tid_info);
 859                         return rc;
 860                 }
 861
 862                 /* Fill task information */
 863                 tasks->size = tid_info->tid_size;
 864                 tasks->num_tids_per_block = tid_info->num_tids_per_block;
 865                 memcpy(tasks->blocks, tid_info->blocks,
 866                        MAX_TID_BLOCKS_FCOE * sizeof(u8 *));
 867
 868                 kfree(tid_info);
 869         }
 870
 871         return 0;
 872 }
 873
 874 static int qed_fcoe_acquire_conn(struct qed_dev *cdev,
 875                                  u32 *handle,
 876                                  u32 *fw_cid, void __iomem **p_doorbell)
 877 {
 878         struct qed_hash_fcoe_con *hash_con;
 879         int rc;
 880
 881         /* Allocate a hashed connection */
 882         hash_con = kzalloc(sizeof(*hash_con), GFP_KERNEL);
 883         if (!hash_con) {
 884                 DP_NOTICE(cdev, "Failed to allocate hashed connection\n");
 885                 return -ENOMEM;
 886         }
 887
 888         /* Acquire the connection */
 889         rc = qed_fcoe_acquire_connection(QED_AFFIN_HWFN(cdev), NULL,
 890                                          &hash_con->con);
 891         if (rc) {
 892                 DP_NOTICE(cdev, "Failed to acquire Connection\n");
 893                 kfree(hash_con);
 894                 return rc;
 895         }
 896
 897         /* Added the connection to hash table */
 898         *handle = hash_con->con->icid;
 899         *fw_cid = hash_con->con->fw_cid;
 900         hash_add(cdev->connections, &hash_con->node, *handle);
 901
 902         if (p_doorbell)
 903                 *p_doorbell = qed_fcoe_get_db_addr(QED_AFFIN_HWFN(cdev),
 904                                                    *handle);
 905
 906         return 0;
 907 }
 908
 909 static int qed_fcoe_release_conn(struct qed_dev *cdev, u32 handle)
 910 {
 911         struct qed_hash_fcoe_con *hash_con;
 912
 913         hash_con = qed_fcoe_get_hash(cdev, handle);
 914         if (!hash_con) {
 915                 DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
 916                           handle);
 917                 return -EINVAL;
 918         }
 919
 920         hlist_del(&hash_con->node);
 921         qed_fcoe_release_connection(QED_AFFIN_HWFN(cdev), hash_con->con);
 922         kfree(hash_con);
 923
 924         return 0;
 925 }
 926
 927 static int qed_fcoe_offload_conn(struct qed_dev *cdev,
 928                                  u32 handle,
 929                                  struct qed_fcoe_params_offload *conn_info)
 930 {
 931         struct qed_hash_fcoe_con *hash_con;
 932         struct qed_fcoe_conn *con;
 933
 934         hash_con = qed_fcoe_get_hash(cdev, handle);
 935         if (!hash_con) {
 936                 DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
 937                           handle);
 938                 return -EINVAL;
 939         }
 940
 941         /* Update the connection with information from the params */
 942         con = hash_con->con;
 943
 944         con->sq_pbl_addr = conn_info->sq_pbl_addr;
 945         con->sq_curr_page_addr = conn_info->sq_curr_page_addr;
 946         con->sq_next_page_addr = conn_info->sq_next_page_addr;
 947         con->tx_max_fc_pay_len = conn_info->tx_max_fc_pay_len;
 948         con->e_d_tov_timer_val = conn_info->e_d_tov_timer_val;
 949         con->rec_tov_timer_val = conn_info->rec_tov_timer_val;
 950         con->rx_max_fc_pay_len = conn_info->rx_max_fc_pay_len;
 951         con->vlan_tag = conn_info->vlan_tag;
 952         con->max_conc_seqs_c3 = conn_info->max_conc_seqs_c3;
 953         con->flags = conn_info->flags;
 954         con->def_q_idx = conn_info->def_q_idx;
 955
 956         con->src_mac_addr_hi = (conn_info->src_mac[5] << 8) |
 957             conn_info->src_mac[4];
 958         con->src_mac_addr_mid = (conn_info->src_mac[3] << 8) |
 959             conn_info->src_mac[2];
 960         con->src_mac_addr_lo = (conn_info->src_mac[1] << 8) |
 961             conn_info->src_mac[0];
 962         con->dst_mac_addr_hi = (conn_info->dst_mac[5] << 8) |
 963             conn_info->dst_mac[4];
 964         con->dst_mac_addr_mid = (conn_info->dst_mac[3] << 8) |
 965             conn_info->dst_mac[2];
 966         con->dst_mac_addr_lo = (conn_info->dst_mac[1] << 8) |
 967             conn_info->dst_mac[0];
 968
 969         con->s_id.addr_hi = conn_info->s_id.addr_hi;
 970         con->s_id.addr_mid = conn_info->s_id.addr_mid;
 971         con->s_id.addr_lo = conn_info->s_id.addr_lo;
 972         con->d_id.addr_hi = conn_info->d_id.addr_hi;
 973         con->d_id.addr_mid = conn_info->d_id.addr_mid;
 974         con->d_id.addr_lo = conn_info->d_id.addr_lo;
 975
 976         return qed_sp_fcoe_conn_offload(QED_AFFIN_HWFN(cdev), con,
 977                                         QED_SPQ_MODE_EBLOCK, NULL);
 978 }
 979
 980 static int qed_fcoe_destroy_conn(struct qed_dev *cdev,
 981                                  u32 handle, dma_addr_t terminate_params)
 982 {
 983         struct qed_hash_fcoe_con *hash_con;
 984         struct qed_fcoe_conn *con;
 985
 986         hash_con = qed_fcoe_get_hash(cdev, handle);
 987         if (!hash_con) {
 988                 DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
 989                           handle);
 990                 return -EINVAL;
 991         }
 992
 993         /* Update the connection with information from the params */
 994         con = hash_con->con;
 995         con->terminate_params = terminate_params;
 996
 997         return qed_sp_fcoe_conn_destroy(QED_AFFIN_HWFN(cdev), con,
 998                                         QED_SPQ_MODE_EBLOCK, NULL);
 999 }
1000
1001 static int qed_fcoe_stats(struct qed_dev *cdev, struct qed_fcoe_stats *stats)
1002 {
1003         return qed_fcoe_get_stats(QED_AFFIN_HWFN(cdev), stats);
1004 }
1005
1006 void qed_get_protocol_stats_fcoe(struct qed_dev *cdev,
1007                                  struct qed_mcp_fcoe_stats *stats)
1008 {
1009         struct qed_fcoe_stats proto_stats;
1010
1011         /* Retrieve FW statistics */
1012         memset(&proto_stats, 0, sizeof(proto_stats));
1013         if (qed_fcoe_stats(cdev, &proto_stats)) {
1014                 DP_VERBOSE(cdev, QED_MSG_STORAGE,
1015                            "Failed to collect FCoE statistics\n");
1016                 return;
1017         }
1018
1019         /* Translate FW statistics into struct */
1020         stats->rx_pkts = proto_stats.fcoe_rx_data_pkt_cnt +
1021                          proto_stats.fcoe_rx_xfer_pkt_cnt +
1022                          proto_stats.fcoe_rx_other_pkt_cnt;
1023         stats->tx_pkts = proto_stats.fcoe_tx_data_pkt_cnt +
1024                          proto_stats.fcoe_tx_xfer_pkt_cnt +
1025                          proto_stats.fcoe_tx_other_pkt_cnt;
1026         stats->fcs_err = proto_stats.fcoe_silent_drop_pkt_crc_error_cnt;
1027
1028         /* Request protocol driver to fill-in the rest */
1029         if (cdev->protocol_ops.fcoe && cdev->ops_cookie) {
1030                 struct qed_fcoe_cb_ops *ops = cdev->protocol_ops.fcoe;
1031                 void *cookie = cdev->ops_cookie;
1032
1033                 if (ops->get_login_failures)
1034                         stats->login_failure = ops->get_login_failures(cookie);
1035         }
1036 }
1037
1038 static const struct qed_fcoe_ops qed_fcoe_ops_pass = {
1039         .common = &qed_common_ops_pass,
1040         .ll2 = &qed_ll2_ops_pass,
1041         .fill_dev_info = &qed_fill_fcoe_dev_info,
1042         .start = &qed_fcoe_start,
1043         .stop = &qed_fcoe_stop,
1044         .register_ops = &qed_register_fcoe_ops,
1045         .acquire_conn = &qed_fcoe_acquire_conn,
1046         .release_conn = &qed_fcoe_release_conn,
1047         .offload_conn = &qed_fcoe_offload_conn,
1048         .destroy_conn = &qed_fcoe_destroy_conn,
1049         .get_stats = &qed_fcoe_stats,
1050 };
1051
1052 const struct qed_fcoe_ops *qed_get_fcoe_ops(void)
1053 {
1054         return &qed_fcoe_ops_pass;
1055 }
1056 EXPORT_SYMBOL(qed_get_fcoe_ops);
1057
1058 void qed_put_fcoe_ops(void)
1059 {
1060 }
1061 EXPORT_SYMBOL(qed_put_fcoe_ops);