linux/drivers/scsi/be2iscsi/be_mgmt.c
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   1/*
   2 * Copyright 2017 Broadcom. All Rights Reserved.
   3 * The term "Broadcom" refers to Broadcom Limited and/or its subsidiaries.
   4 *
   5 * This program is free software; you can redistribute it and/or
   6 * modify it under the terms of the GNU General Public License version 2
   7 * as published by the Free Software Foundation. The full GNU General
   8 * Public License is included in this distribution in the file called COPYING.
   9 *
  10 * Contact Information:
  11 * linux-drivers@broadcom.com
  12 *
  13 */
  14
  15#include <linux/bsg-lib.h>
  16#include <scsi/scsi_transport_iscsi.h>
  17#include <scsi/scsi_bsg_iscsi.h>
  18#include "be_mgmt.h"
  19#include "be_iscsi.h"
  20#include "be_main.h"
  21
  22unsigned int mgmt_vendor_specific_fw_cmd(struct be_ctrl_info *ctrl,
  23                                         struct beiscsi_hba *phba,
  24                                         struct bsg_job *job,
  25                                         struct be_dma_mem *nonemb_cmd)
  26{
  27        struct be_mcc_wrb *wrb;
  28        struct be_sge *mcc_sge;
  29        unsigned int tag = 0;
  30        struct iscsi_bsg_request *bsg_req = job->request;
  31        struct be_bsg_vendor_cmd *req = nonemb_cmd->va;
  32        unsigned short region, sector_size, sector, offset;
  33
  34        nonemb_cmd->size = job->request_payload.payload_len;
  35        memset(nonemb_cmd->va, 0, nonemb_cmd->size);
  36        region =  bsg_req->rqst_data.h_vendor.vendor_cmd[1];
  37        sector_size =  bsg_req->rqst_data.h_vendor.vendor_cmd[2];
  38        sector =  bsg_req->rqst_data.h_vendor.vendor_cmd[3];
  39        offset =  bsg_req->rqst_data.h_vendor.vendor_cmd[4];
  40        req->region = region;
  41        req->sector = sector;
  42        req->offset = offset;
  43
  44        if (mutex_lock_interruptible(&ctrl->mbox_lock))
  45                return 0;
  46        switch (bsg_req->rqst_data.h_vendor.vendor_cmd[0]) {
  47        case BEISCSI_WRITE_FLASH:
  48                offset = sector * sector_size + offset;
  49                be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
  50                                   OPCODE_COMMON_WRITE_FLASH, sizeof(*req));
  51                sg_copy_to_buffer(job->request_payload.sg_list,
  52                                  job->request_payload.sg_cnt,
  53                                  nonemb_cmd->va + offset, job->request_len);
  54                break;
  55        case BEISCSI_READ_FLASH:
  56                be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
  57                           OPCODE_COMMON_READ_FLASH, sizeof(*req));
  58                break;
  59        default:
  60                beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
  61                            "BG_%d : Unsupported cmd = 0x%x\n\n",
  62                            bsg_req->rqst_data.h_vendor.vendor_cmd[0]);
  63
  64                mutex_unlock(&ctrl->mbox_lock);
  65                return -EPERM;
  66        }
  67
  68        wrb = alloc_mcc_wrb(phba, &tag);
  69        if (!wrb) {
  70                mutex_unlock(&ctrl->mbox_lock);
  71                return 0;
  72        }
  73
  74        mcc_sge = nonembedded_sgl(wrb);
  75        be_wrb_hdr_prepare(wrb, nonemb_cmd->size, false,
  76                           job->request_payload.sg_cnt);
  77        mcc_sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
  78        mcc_sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
  79        mcc_sge->len = cpu_to_le32(nonemb_cmd->size);
  80
  81        be_mcc_notify(phba, tag);
  82
  83        mutex_unlock(&ctrl->mbox_lock);
  84        return tag;
  85}
  86
  87/**
  88 * mgmt_open_connection()- Establish a TCP CXN
  89 * @dst_addr: Destination Address
  90 * @beiscsi_ep: ptr to device endpoint struct
  91 * @nonemb_cmd: ptr to memory allocated for command
  92 *
  93 * return
  94 *      Success: Tag number of the MBX Command issued
  95 *      Failure: Error code
  96 **/
  97int mgmt_open_connection(struct beiscsi_hba *phba,
  98                         struct sockaddr *dst_addr,
  99                         struct beiscsi_endpoint *beiscsi_ep,
 100                         struct be_dma_mem *nonemb_cmd)
 101{
 102        struct hwi_controller *phwi_ctrlr;
 103        struct hwi_context_memory *phwi_context;
 104        struct sockaddr_in *daddr_in = (struct sockaddr_in *)dst_addr;
 105        struct sockaddr_in6 *daddr_in6 = (struct sockaddr_in6 *)dst_addr;
 106        struct be_ctrl_info *ctrl = &phba->ctrl;
 107        struct be_mcc_wrb *wrb;
 108        struct tcp_connect_and_offload_in_v1 *req;
 109        unsigned short def_hdr_id;
 110        unsigned short def_data_id;
 111        struct phys_addr template_address = { 0, 0 };
 112        struct phys_addr *ptemplate_address;
 113        unsigned int tag = 0;
 114        unsigned int i, ulp_num;
 115        unsigned short cid = beiscsi_ep->ep_cid;
 116        struct be_sge *sge;
 117
 118        if (dst_addr->sa_family != PF_INET && dst_addr->sa_family != PF_INET6) {
 119                beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
 120                            "BG_%d : unknown addr family %d\n",
 121                            dst_addr->sa_family);
 122                return 0;
 123        }
 124
 125        phwi_ctrlr = phba->phwi_ctrlr;
 126        phwi_context = phwi_ctrlr->phwi_ctxt;
 127
 128        ulp_num = phwi_ctrlr->wrb_context[BE_GET_CRI_FROM_CID(cid)].ulp_num;
 129
 130        def_hdr_id = (unsigned short)HWI_GET_DEF_HDRQ_ID(phba, ulp_num);
 131        def_data_id = (unsigned short)HWI_GET_DEF_BUFQ_ID(phba, ulp_num);
 132
 133        ptemplate_address = &template_address;
 134        ISCSI_GET_PDU_TEMPLATE_ADDRESS(phba, ptemplate_address);
 135        if (mutex_lock_interruptible(&ctrl->mbox_lock))
 136                return 0;
 137        wrb = alloc_mcc_wrb(phba, &tag);
 138        if (!wrb) {
 139                mutex_unlock(&ctrl->mbox_lock);
 140                return 0;
 141        }
 142
 143        sge = nonembedded_sgl(wrb);
 144        req = nonemb_cmd->va;
 145        memset(req, 0, sizeof(*req));
 146
 147        be_wrb_hdr_prepare(wrb, nonemb_cmd->size, false, 1);
 148        be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
 149                           OPCODE_COMMON_ISCSI_TCP_CONNECT_AND_OFFLOAD,
 150                           nonemb_cmd->size);
 151        if (dst_addr->sa_family == PF_INET) {
 152                __be32 s_addr = daddr_in->sin_addr.s_addr;
 153                req->ip_address.ip_type = BEISCSI_IP_TYPE_V4;
 154                req->ip_address.addr[0] = s_addr & 0x000000ff;
 155                req->ip_address.addr[1] = (s_addr & 0x0000ff00) >> 8;
 156                req->ip_address.addr[2] = (s_addr & 0x00ff0000) >> 16;
 157                req->ip_address.addr[3] = (s_addr & 0xff000000) >> 24;
 158                req->tcp_port = ntohs(daddr_in->sin_port);
 159                beiscsi_ep->dst_addr = daddr_in->sin_addr.s_addr;
 160                beiscsi_ep->dst_tcpport = ntohs(daddr_in->sin_port);
 161                beiscsi_ep->ip_type = BEISCSI_IP_TYPE_V4;
 162        } else {
 163                /* else its PF_INET6 family */
 164                req->ip_address.ip_type = BEISCSI_IP_TYPE_V6;
 165                memcpy(&req->ip_address.addr,
 166                       &daddr_in6->sin6_addr.in6_u.u6_addr8, 16);
 167                req->tcp_port = ntohs(daddr_in6->sin6_port);
 168                beiscsi_ep->dst_tcpport = ntohs(daddr_in6->sin6_port);
 169                memcpy(&beiscsi_ep->dst6_addr,
 170                       &daddr_in6->sin6_addr.in6_u.u6_addr8, 16);
 171                beiscsi_ep->ip_type = BEISCSI_IP_TYPE_V6;
 172        }
 173        req->cid = cid;
 174        i = phba->nxt_cqid++;
 175        if (phba->nxt_cqid == phba->num_cpus)
 176                phba->nxt_cqid = 0;
 177        req->cq_id = phwi_context->be_cq[i].id;
 178        beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
 179                    "BG_%d : i=%d cq_id=%d\n", i, req->cq_id);
 180        req->defq_id = def_hdr_id;
 181        req->hdr_ring_id = def_hdr_id;
 182        req->data_ring_id = def_data_id;
 183        req->do_offload = 1;
 184        req->dataout_template_pa.lo = ptemplate_address->lo;
 185        req->dataout_template_pa.hi = ptemplate_address->hi;
 186        sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
 187        sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
 188        sge->len = cpu_to_le32(nonemb_cmd->size);
 189
 190        if (!is_chip_be2_be3r(phba)) {
 191                req->hdr.version = MBX_CMD_VER1;
 192                req->tcp_window_size = 0x8000;
 193                req->tcp_window_scale_count = 2;
 194        }
 195
 196        be_mcc_notify(phba, tag);
 197        mutex_unlock(&ctrl->mbox_lock);
 198        return tag;
 199}
 200
 201/*
 202 * beiscsi_exec_nemb_cmd()- execute non-embedded MBX cmd
 203 * @phba: driver priv structure
 204 * @nonemb_cmd: DMA address of the MBX command to be issued
 205 * @cbfn: callback func on MCC completion
 206 * @resp_buf: buffer to copy the MBX cmd response
 207 * @resp_buf_len: response length to be copied
 208 *
 209 **/
 210static int beiscsi_exec_nemb_cmd(struct beiscsi_hba *phba,
 211                                 struct be_dma_mem *nonemb_cmd,
 212                                 void (*cbfn)(struct beiscsi_hba *,
 213                                              unsigned int),
 214                                 void *resp_buf, u32 resp_buf_len)
 215{
 216        struct be_ctrl_info *ctrl = &phba->ctrl;
 217        struct be_mcc_wrb *wrb;
 218        struct be_sge *sge;
 219        unsigned int tag;
 220        int rc = 0;
 221
 222        mutex_lock(&ctrl->mbox_lock);
 223        wrb = alloc_mcc_wrb(phba, &tag);
 224        if (!wrb) {
 225                mutex_unlock(&ctrl->mbox_lock);
 226                rc = -ENOMEM;
 227                goto free_cmd;
 228        }
 229
 230        sge = nonembedded_sgl(wrb);
 231        be_wrb_hdr_prepare(wrb, nonemb_cmd->size, false, 1);
 232        sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
 233        sge->pa_lo = cpu_to_le32(lower_32_bits(nonemb_cmd->dma));
 234        sge->len = cpu_to_le32(nonemb_cmd->size);
 235
 236        if (cbfn) {
 237                struct be_dma_mem *tag_mem;
 238
 239                set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);
 240                ctrl->ptag_state[tag].cbfn = cbfn;
 241                tag_mem = &phba->ctrl.ptag_state[tag].tag_mem_state;
 242
 243                /* store DMA mem to be freed in callback */
 244                tag_mem->size = nonemb_cmd->size;
 245                tag_mem->va = nonemb_cmd->va;
 246                tag_mem->dma = nonemb_cmd->dma;
 247        }
 248        be_mcc_notify(phba, tag);
 249        mutex_unlock(&ctrl->mbox_lock);
 250
 251        /* with cbfn set, its async cmd, don't wait */
 252        if (cbfn)
 253                return 0;
 254
 255        rc = beiscsi_mccq_compl_wait(phba, tag, NULL, nonemb_cmd);
 256
 257        /* copy the response, if any */
 258        if (resp_buf)
 259                memcpy(resp_buf, nonemb_cmd->va, resp_buf_len);
 260        /**
 261         * This is special case of NTWK_GET_IF_INFO where the size of
 262         * response is not known. beiscsi_if_get_info checks the return
 263         * value to free DMA buffer.
 264         */
 265        if (rc == -EAGAIN)
 266                return rc;
 267
 268        /**
 269         * If FW is busy that is driver timed out, DMA buffer is saved with
 270         * the tag, only when the cmd completes this buffer is freed.
 271         */
 272        if (rc == -EBUSY)
 273                return rc;
 274
 275free_cmd:
 276        pci_free_consistent(ctrl->pdev, nonemb_cmd->size,
 277                            nonemb_cmd->va, nonemb_cmd->dma);
 278        return rc;
 279}
 280
 281static int beiscsi_prep_nemb_cmd(struct beiscsi_hba *phba,
 282                                 struct be_dma_mem *cmd,
 283                                 u8 subsystem, u8 opcode, u32 size)
 284{
 285        cmd->va = pci_zalloc_consistent(phba->ctrl.pdev, size, &cmd->dma);
 286        if (!cmd->va) {
 287                beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
 288                            "BG_%d : Failed to allocate memory for if info\n");
 289                return -ENOMEM;
 290        }
 291        cmd->size = size;
 292        be_cmd_hdr_prepare(cmd->va, subsystem, opcode, size);
 293        beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
 294                    "BG_%d : subsystem %u cmd %u size %u\n",
 295                    subsystem, opcode, size);
 296        return 0;
 297}
 298
 299static void __beiscsi_eq_delay_compl(struct beiscsi_hba *phba, unsigned int tag)
 300{
 301        struct be_dma_mem *tag_mem;
 302
 303        /* status is ignored */
 304        __beiscsi_mcc_compl_status(phba, tag, NULL, NULL);
 305        tag_mem = &phba->ctrl.ptag_state[tag].tag_mem_state;
 306        if (tag_mem->size) {
 307                pci_free_consistent(phba->pcidev, tag_mem->size,
 308                                    tag_mem->va, tag_mem->dma);
 309                tag_mem->size = 0;
 310        }
 311}
 312
 313int beiscsi_modify_eq_delay(struct beiscsi_hba *phba,
 314                            struct be_set_eqd *set_eqd, int num)
 315{
 316        struct be_cmd_req_modify_eq_delay *req;
 317        struct be_dma_mem nonemb_cmd;
 318        int i, rc;
 319
 320        rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_COMMON,
 321                        OPCODE_COMMON_MODIFY_EQ_DELAY, sizeof(*req));
 322        if (rc)
 323                return rc;
 324
 325        req = nonemb_cmd.va;
 326        req->num_eq = cpu_to_le32(num);
 327        for (i = 0; i < num; i++) {
 328                req->delay[i].eq_id = cpu_to_le32(set_eqd[i].eq_id);
 329                req->delay[i].phase = 0;
 330                req->delay[i].delay_multiplier =
 331                                cpu_to_le32(set_eqd[i].delay_multiplier);
 332        }
 333
 334        return beiscsi_exec_nemb_cmd(phba, &nonemb_cmd,
 335                                     __beiscsi_eq_delay_compl, NULL, 0);
 336}
 337
 338/**
 339 * beiscsi_get_initiator_name - read initiator name from flash
 340 * @phba: device priv structure
 341 * @name: buffer pointer
 342 * @cfg: fetch user configured
 343 *
 344 */
 345int beiscsi_get_initiator_name(struct beiscsi_hba *phba, char *name, bool cfg)
 346{
 347        struct be_dma_mem nonemb_cmd;
 348        struct be_cmd_hba_name resp;
 349        struct be_cmd_hba_name *req;
 350        int rc;
 351
 352        rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI_INI,
 353                        OPCODE_ISCSI_INI_CFG_GET_HBA_NAME, sizeof(resp));
 354        if (rc)
 355                return rc;
 356
 357        req = nonemb_cmd.va;
 358        if (cfg)
 359                req->hdr.version = 1;
 360        rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL,
 361                                   &resp, sizeof(resp));
 362        if (rc) {
 363                beiscsi_log(phba, KERN_ERR,
 364                            BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
 365                            "BS_%d : Initiator Name MBX Failed\n");
 366                return rc;
 367        }
 368        rc = sprintf(name, "%s\n", resp.initiator_name);
 369        return rc;
 370}
 371
 372unsigned int beiscsi_if_get_handle(struct beiscsi_hba *phba)
 373{
 374        struct be_ctrl_info *ctrl = &phba->ctrl;
 375        struct be_mcc_wrb *wrb;
 376        struct be_cmd_get_all_if_id_req *req;
 377        struct be_cmd_get_all_if_id_req *pbe_allid;
 378        unsigned int tag;
 379        int status = 0;
 380
 381        if (mutex_lock_interruptible(&ctrl->mbox_lock))
 382                return -EINTR;
 383        wrb = alloc_mcc_wrb(phba, &tag);
 384        if (!wrb) {
 385                mutex_unlock(&ctrl->mbox_lock);
 386                return -ENOMEM;
 387        }
 388
 389        req = embedded_payload(wrb);
 390        be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
 391        be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
 392                           OPCODE_COMMON_ISCSI_NTWK_GET_ALL_IF_ID,
 393                           sizeof(*req));
 394        be_mcc_notify(phba, tag);
 395        mutex_unlock(&ctrl->mbox_lock);
 396
 397        status = beiscsi_mccq_compl_wait(phba, tag, &wrb, NULL);
 398        if (status) {
 399                beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
 400                            "BG_%d : %s failed: %d\n", __func__, status);
 401                return -EBUSY;
 402        }
 403
 404        pbe_allid = embedded_payload(wrb);
 405        /* we now support only one interface per function */
 406        phba->interface_handle = pbe_allid->if_hndl_list[0];
 407
 408        return status;
 409}
 410
 411static inline bool beiscsi_if_zero_ip(u8 *ip, u32 ip_type)
 412{
 413        u32 len;
 414
 415        len = (ip_type < BEISCSI_IP_TYPE_V6) ? IP_V4_LEN : IP_V6_LEN;
 416        while (len && !ip[len - 1])
 417                len--;
 418        return (len == 0);
 419}
 420
 421static int beiscsi_if_mod_gw(struct beiscsi_hba *phba,
 422                             u32 action, u32 ip_type, u8 *gw)
 423{
 424        struct be_cmd_set_def_gateway_req *req;
 425        struct be_dma_mem nonemb_cmd;
 426        int rt_val;
 427
 428        rt_val = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI,
 429                        OPCODE_COMMON_ISCSI_NTWK_MODIFY_DEFAULT_GATEWAY,
 430                        sizeof(*req));
 431        if (rt_val)
 432                return rt_val;
 433
 434        req = nonemb_cmd.va;
 435        req->action = action;
 436        req->ip_addr.ip_type = ip_type;
 437        memcpy(req->ip_addr.addr, gw,
 438               (ip_type < BEISCSI_IP_TYPE_V6) ? IP_V4_LEN : IP_V6_LEN);
 439        return beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, NULL, 0);
 440}
 441
 442int beiscsi_if_set_gw(struct beiscsi_hba *phba, u32 ip_type, u8 *gw)
 443{
 444        struct be_cmd_get_def_gateway_resp gw_resp;
 445        int rt_val;
 446
 447        memset(&gw_resp, 0, sizeof(gw_resp));
 448        rt_val = beiscsi_if_get_gw(phba, ip_type, &gw_resp);
 449        if (rt_val) {
 450                beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
 451                            "BG_%d : Failed to Get Gateway Addr\n");
 452                return rt_val;
 453        }
 454
 455        if (!beiscsi_if_zero_ip(gw_resp.ip_addr.addr, ip_type)) {
 456                rt_val = beiscsi_if_mod_gw(phba, IP_ACTION_DEL, ip_type,
 457                                           gw_resp.ip_addr.addr);
 458                if (rt_val) {
 459                        beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
 460                                    "BG_%d : Failed to clear Gateway Addr Set\n");
 461                        return rt_val;
 462                }
 463        }
 464
 465        rt_val = beiscsi_if_mod_gw(phba, IP_ACTION_ADD, ip_type, gw);
 466        if (rt_val)
 467                beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
 468                            "BG_%d : Failed to Set Gateway Addr\n");
 469
 470        return rt_val;
 471}
 472
 473int beiscsi_if_get_gw(struct beiscsi_hba *phba, u32 ip_type,
 474                      struct be_cmd_get_def_gateway_resp *resp)
 475{
 476        struct be_cmd_get_def_gateway_req *req;
 477        struct be_dma_mem nonemb_cmd;
 478        int rc;
 479
 480        rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI,
 481                        OPCODE_COMMON_ISCSI_NTWK_GET_DEFAULT_GATEWAY,
 482                        sizeof(*resp));
 483        if (rc)
 484                return rc;
 485
 486        req = nonemb_cmd.va;
 487        req->ip_type = ip_type;
 488
 489        return beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL,
 490                                     resp, sizeof(*resp));
 491}
 492
 493static int
 494beiscsi_if_clr_ip(struct beiscsi_hba *phba,
 495                  struct be_cmd_get_if_info_resp *if_info)
 496{
 497        struct be_cmd_set_ip_addr_req *req;
 498        struct be_dma_mem nonemb_cmd;
 499        int rc;
 500
 501        rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI,
 502                        OPCODE_COMMON_ISCSI_NTWK_MODIFY_IP_ADDR,
 503                        sizeof(*req));
 504        if (rc)
 505                return rc;
 506
 507        req = nonemb_cmd.va;
 508        req->ip_params.record_entry_count = 1;
 509        req->ip_params.ip_record.action = IP_ACTION_DEL;
 510        req->ip_params.ip_record.interface_hndl =
 511                phba->interface_handle;
 512        req->ip_params.ip_record.ip_addr.size_of_structure =
 513                sizeof(struct be_ip_addr_subnet_format);
 514        req->ip_params.ip_record.ip_addr.ip_type = if_info->ip_addr.ip_type;
 515        memcpy(req->ip_params.ip_record.ip_addr.addr,
 516               if_info->ip_addr.addr,
 517               sizeof(if_info->ip_addr.addr));
 518        memcpy(req->ip_params.ip_record.ip_addr.subnet_mask,
 519               if_info->ip_addr.subnet_mask,
 520               sizeof(if_info->ip_addr.subnet_mask));
 521        rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, NULL, 0);
 522        if (rc < 0 || req->ip_params.ip_record.status) {
 523                beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
 524                            "BG_%d : failed to clear IP: rc %d status %d\n",
 525                            rc, req->ip_params.ip_record.status);
 526        }
 527        return rc;
 528}
 529
 530static int
 531beiscsi_if_set_ip(struct beiscsi_hba *phba, u8 *ip,
 532                  u8 *subnet, u32 ip_type)
 533{
 534        struct be_cmd_set_ip_addr_req *req;
 535        struct be_dma_mem nonemb_cmd;
 536        uint32_t ip_len;
 537        int rc;
 538
 539        rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI,
 540                        OPCODE_COMMON_ISCSI_NTWK_MODIFY_IP_ADDR,
 541                        sizeof(*req));
 542        if (rc)
 543                return rc;
 544
 545        req = nonemb_cmd.va;
 546        req->ip_params.record_entry_count = 1;
 547        req->ip_params.ip_record.action = IP_ACTION_ADD;
 548        req->ip_params.ip_record.interface_hndl =
 549                phba->interface_handle;
 550        req->ip_params.ip_record.ip_addr.size_of_structure =
 551                sizeof(struct be_ip_addr_subnet_format);
 552        req->ip_params.ip_record.ip_addr.ip_type = ip_type;
 553        ip_len = (ip_type < BEISCSI_IP_TYPE_V6) ? IP_V4_LEN : IP_V6_LEN;
 554        memcpy(req->ip_params.ip_record.ip_addr.addr, ip, ip_len);
 555        if (subnet)
 556                memcpy(req->ip_params.ip_record.ip_addr.subnet_mask,
 557                       subnet, ip_len);
 558
 559        rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, NULL, 0);
 560        /**
 561         * In some cases, host needs to look into individual record status
 562         * even though FW reported success for that IOCTL.
 563         */
 564        if (rc < 0 || req->ip_params.ip_record.status) {
 565                __beiscsi_log(phba, KERN_ERR,
 566                            "BG_%d : failed to set IP: rc %d status %d\n",
 567                            rc, req->ip_params.ip_record.status);
 568                if (req->ip_params.ip_record.status)
 569                        rc = -EINVAL;
 570        }
 571        return rc;
 572}
 573
 574int beiscsi_if_en_static(struct beiscsi_hba *phba, u32 ip_type,
 575                         u8 *ip, u8 *subnet)
 576{
 577        struct be_cmd_get_if_info_resp *if_info;
 578        struct be_cmd_rel_dhcp_req *reldhcp;
 579        struct be_dma_mem nonemb_cmd;
 580        int rc;
 581
 582        rc = beiscsi_if_get_info(phba, ip_type, &if_info);
 583        if (rc)
 584                return rc;
 585
 586        if (if_info->dhcp_state) {
 587                rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd,
 588                                CMD_SUBSYSTEM_ISCSI,
 589                                OPCODE_COMMON_ISCSI_NTWK_REL_STATELESS_IP_ADDR,
 590                                sizeof(*reldhcp));
 591                if (rc)
 592                        goto exit;
 593
 594                reldhcp = nonemb_cmd.va;
 595                reldhcp->interface_hndl = phba->interface_handle;
 596                reldhcp->ip_type = ip_type;
 597                rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, NULL, 0);
 598                if (rc < 0) {
 599                        beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
 600                                    "BG_%d : failed to release existing DHCP: %d\n",
 601                                    rc);
 602                        goto exit;
 603                }
 604        }
 605
 606        /* first delete any IP set */
 607        if (!beiscsi_if_zero_ip(if_info->ip_addr.addr, ip_type)) {
 608                rc = beiscsi_if_clr_ip(phba, if_info);
 609                if (rc)
 610                        goto exit;
 611        }
 612
 613        /* if ip == NULL then this is called just to release DHCP IP */
 614        if (ip)
 615                rc = beiscsi_if_set_ip(phba, ip, subnet, ip_type);
 616exit:
 617        kfree(if_info);
 618        return rc;
 619}
 620
 621int beiscsi_if_en_dhcp(struct beiscsi_hba *phba, u32 ip_type)
 622{
 623        struct be_cmd_get_def_gateway_resp gw_resp;
 624        struct be_cmd_get_if_info_resp *if_info;
 625        struct be_cmd_set_dhcp_req *dhcpreq;
 626        struct be_dma_mem nonemb_cmd;
 627        u8 *gw;
 628        int rc;
 629
 630        rc = beiscsi_if_get_info(phba, ip_type, &if_info);
 631        if (rc)
 632                return rc;
 633
 634        if (if_info->dhcp_state) {
 635                beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
 636                                "BG_%d : DHCP Already Enabled\n");
 637                goto exit;
 638        }
 639
 640        /* first delete any IP set */
 641        if (!beiscsi_if_zero_ip(if_info->ip_addr.addr, ip_type)) {
 642                rc = beiscsi_if_clr_ip(phba, if_info);
 643                if (rc)
 644                        goto exit;
 645        }
 646
 647        /* delete gateway settings if mode change is to DHCP */
 648        memset(&gw_resp, 0, sizeof(gw_resp));
 649        /* use ip_type provided in if_info */
 650        rc = beiscsi_if_get_gw(phba, if_info->ip_addr.ip_type, &gw_resp);
 651        if (rc) {
 652                beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
 653                            "BG_%d : Failed to Get Gateway Addr\n");
 654                goto exit;
 655        }
 656        gw = (u8 *)&gw_resp.ip_addr.addr;
 657        if (!beiscsi_if_zero_ip(gw, if_info->ip_addr.ip_type)) {
 658                rc = beiscsi_if_mod_gw(phba, IP_ACTION_DEL,
 659                                       if_info->ip_addr.ip_type, gw);
 660                if (rc) {
 661                        beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
 662                                    "BG_%d : Failed to clear Gateway Addr Set\n");
 663                        goto exit;
 664                }
 665        }
 666
 667        rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI,
 668                        OPCODE_COMMON_ISCSI_NTWK_CONFIG_STATELESS_IP_ADDR,
 669                        sizeof(*dhcpreq));
 670        if (rc)
 671                goto exit;
 672
 673        dhcpreq = nonemb_cmd.va;
 674        dhcpreq->flags = 1; /* 1 - blocking; 0 - non-blocking */
 675        dhcpreq->retry_count = 1;
 676        dhcpreq->interface_hndl = phba->interface_handle;
 677        dhcpreq->ip_type = ip_type;
 678        rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, NULL, 0);
 679
 680exit:
 681        kfree(if_info);
 682        return rc;
 683}
 684
 685/**
 686 * beiscsi_if_set_vlan()- Issue and wait for CMD completion
 687 * @phba: device private structure instance
 688 * @vlan_tag: VLAN tag
 689 *
 690 * Issue the MBX Cmd and wait for the completion of the
 691 * command.
 692 *
 693 * returns
 694 *      Success: 0
 695 *      Failure: Non-Xero Value
 696 **/
 697int beiscsi_if_set_vlan(struct beiscsi_hba *phba, uint16_t vlan_tag)
 698{
 699        int rc;
 700        unsigned int tag;
 701
 702        tag = be_cmd_set_vlan(phba, vlan_tag);
 703        if (!tag) {
 704                beiscsi_log(phba, KERN_ERR,
 705                            (BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX),
 706                            "BG_%d : VLAN Setting Failed\n");
 707                return -EBUSY;
 708        }
 709
 710        rc = beiscsi_mccq_compl_wait(phba, tag, NULL, NULL);
 711        if (rc) {
 712                beiscsi_log(phba, KERN_ERR,
 713                            (BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX),
 714                            "BS_%d : VLAN MBX Cmd Failed\n");
 715                return rc;
 716        }
 717        return rc;
 718}
 719
 720
 721int beiscsi_if_get_info(struct beiscsi_hba *phba, int ip_type,
 722                        struct be_cmd_get_if_info_resp **if_info)
 723{
 724        struct be_cmd_get_if_info_req *req;
 725        struct be_dma_mem nonemb_cmd;
 726        uint32_t ioctl_size = sizeof(struct be_cmd_get_if_info_resp);
 727        int rc;
 728
 729        rc = beiscsi_if_get_handle(phba);
 730        if (rc)
 731                return rc;
 732
 733        do {
 734                rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd,
 735                                CMD_SUBSYSTEM_ISCSI,
 736                                OPCODE_COMMON_ISCSI_NTWK_GET_IF_INFO,
 737                                ioctl_size);
 738                if (rc)
 739                        return rc;
 740
 741                req = nonemb_cmd.va;
 742                req->interface_hndl = phba->interface_handle;
 743                req->ip_type = ip_type;
 744
 745                /* Allocate memory for if_info */
 746                *if_info = kzalloc(ioctl_size, GFP_KERNEL);
 747                if (!*if_info) {
 748                        beiscsi_log(phba, KERN_ERR,
 749                                    BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
 750                                    "BG_%d : Memory Allocation Failure\n");
 751
 752                                /* Free the DMA memory for the IOCTL issuing */
 753                                pci_free_consistent(phba->ctrl.pdev,
 754                                                    nonemb_cmd.size,
 755                                                    nonemb_cmd.va,
 756                                                    nonemb_cmd.dma);
 757                                return -ENOMEM;
 758                }
 759
 760                rc =  beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, *if_info,
 761                                            ioctl_size);
 762
 763                /* Check if the error is because of Insufficent_Buffer */
 764                if (rc == -EAGAIN) {
 765
 766                        /* Get the new memory size */
 767                        ioctl_size = ((struct be_cmd_resp_hdr *)
 768                                      nonemb_cmd.va)->actual_resp_len;
 769                        ioctl_size += sizeof(struct be_cmd_req_hdr);
 770
 771                        /* Free the previous allocated DMA memory */
 772                        pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
 773                                            nonemb_cmd.va,
 774                                            nonemb_cmd.dma);
 775
 776                        /* Free the virtual memory */
 777                        kfree(*if_info);
 778                } else
 779                        break;
 780        } while (true);
 781        return rc;
 782}
 783
 784int mgmt_get_nic_conf(struct beiscsi_hba *phba,
 785                      struct be_cmd_get_nic_conf_resp *nic)
 786{
 787        struct be_dma_mem nonemb_cmd;
 788        int rc;
 789
 790        rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI,
 791                        OPCODE_COMMON_ISCSI_NTWK_GET_NIC_CONFIG,
 792                        sizeof(*nic));
 793        if (rc)
 794                return rc;
 795
 796        return beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL,
 797                                     nic, sizeof(*nic));
 798}
 799
 800static void beiscsi_boot_process_compl(struct beiscsi_hba *phba,
 801                                       unsigned int tag)
 802{
 803        struct be_cmd_get_boot_target_resp *boot_resp;
 804        struct be_cmd_resp_logout_fw_sess *logo_resp;
 805        struct be_cmd_get_session_resp *sess_resp;
 806        struct be_mcc_wrb *wrb;
 807        struct boot_struct *bs;
 808        int boot_work, status;
 809
 810        if (!test_bit(BEISCSI_HBA_BOOT_WORK, &phba->state)) {
 811                __beiscsi_log(phba, KERN_ERR,
 812                              "BG_%d : %s no boot work %lx\n",
 813                              __func__, phba->state);
 814                return;
 815        }
 816
 817        if (phba->boot_struct.tag != tag) {
 818                __beiscsi_log(phba, KERN_ERR,
 819                              "BG_%d : %s tag mismatch %d:%d\n",
 820                              __func__, tag, phba->boot_struct.tag);
 821                return;
 822        }
 823        bs = &phba->boot_struct;
 824        boot_work = 1;
 825        status = 0;
 826        switch (bs->action) {
 827        case BEISCSI_BOOT_REOPEN_SESS:
 828                status = __beiscsi_mcc_compl_status(phba, tag, NULL, NULL);
 829                if (!status)
 830                        bs->action = BEISCSI_BOOT_GET_SHANDLE;
 831                else
 832                        bs->retry--;
 833                break;
 834        case BEISCSI_BOOT_GET_SHANDLE:
 835                status = __beiscsi_mcc_compl_status(phba, tag, &wrb, NULL);
 836                if (!status) {
 837                        boot_resp = embedded_payload(wrb);
 838                        bs->s_handle = boot_resp->boot_session_handle;
 839                }
 840                if (bs->s_handle == BE_BOOT_INVALID_SHANDLE) {
 841                        bs->action = BEISCSI_BOOT_REOPEN_SESS;
 842                        bs->retry--;
 843                } else {
 844                        bs->action = BEISCSI_BOOT_GET_SINFO;
 845                }
 846                break;
 847        case BEISCSI_BOOT_GET_SINFO:
 848                status = __beiscsi_mcc_compl_status(phba, tag, NULL,
 849                                                    &bs->nonemb_cmd);
 850                if (!status) {
 851                        sess_resp = bs->nonemb_cmd.va;
 852                        memcpy(&bs->boot_sess, &sess_resp->session_info,
 853                               sizeof(struct mgmt_session_info));
 854                        bs->action = BEISCSI_BOOT_LOGOUT_SESS;
 855                } else {
 856                        __beiscsi_log(phba, KERN_ERR,
 857                                      "BG_%d : get boot session info error : 0x%x\n",
 858                                      status);
 859                        boot_work = 0;
 860                }
 861                pci_free_consistent(phba->ctrl.pdev, bs->nonemb_cmd.size,
 862                                    bs->nonemb_cmd.va, bs->nonemb_cmd.dma);
 863                bs->nonemb_cmd.va = NULL;
 864                break;
 865        case BEISCSI_BOOT_LOGOUT_SESS:
 866                status = __beiscsi_mcc_compl_status(phba, tag, &wrb, NULL);
 867                if (!status) {
 868                        logo_resp = embedded_payload(wrb);
 869                        if (logo_resp->session_status != BE_SESS_STATUS_CLOSE) {
 870                                __beiscsi_log(phba, KERN_ERR,
 871                                              "BG_%d : FW boot session logout error : 0x%x\n",
 872                                              logo_resp->session_status);
 873                        }
 874                }
 875                /* continue to create boot_kset even if logout failed? */
 876                bs->action = BEISCSI_BOOT_CREATE_KSET;
 877                break;
 878        default:
 879                break;
 880        }
 881
 882        /* clear the tag so no other completion matches this tag */
 883        bs->tag = 0;
 884        if (!bs->retry) {
 885                boot_work = 0;
 886                __beiscsi_log(phba, KERN_ERR,
 887                              "BG_%d : failed to setup boot target: status %d action %d\n",
 888                              status, bs->action);
 889        }
 890        if (!boot_work) {
 891                /* wait for next event to start boot_work */
 892                clear_bit(BEISCSI_HBA_BOOT_WORK, &phba->state);
 893                return;
 894        }
 895        schedule_work(&phba->boot_work);
 896}
 897
 898/**
 899 * beiscsi_boot_logout_sess()- Logout from boot FW session
 900 * @phba: Device priv structure instance
 901 *
 902 * return
 903 *      the TAG used for MBOX Command
 904 *
 905 */
 906unsigned int beiscsi_boot_logout_sess(struct beiscsi_hba *phba)
 907{
 908        struct be_ctrl_info *ctrl = &phba->ctrl;
 909        struct be_mcc_wrb *wrb;
 910        struct be_cmd_req_logout_fw_sess *req;
 911        unsigned int tag;
 912
 913        mutex_lock(&ctrl->mbox_lock);
 914        wrb = alloc_mcc_wrb(phba, &tag);
 915        if (!wrb) {
 916                mutex_unlock(&ctrl->mbox_lock);
 917                return 0;
 918        }
 919
 920        req = embedded_payload(wrb);
 921        be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
 922        be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
 923                           OPCODE_ISCSI_INI_SESSION_LOGOUT_TARGET,
 924                           sizeof(struct be_cmd_req_logout_fw_sess));
 925        /* Use the session handle copied into boot_sess */
 926        req->session_handle = phba->boot_struct.boot_sess.session_handle;
 927
 928        phba->boot_struct.tag = tag;
 929        set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);
 930        ctrl->ptag_state[tag].cbfn = beiscsi_boot_process_compl;
 931
 932        be_mcc_notify(phba, tag);
 933        mutex_unlock(&ctrl->mbox_lock);
 934
 935        return tag;
 936}
 937/**
 938 * beiscsi_boot_reopen_sess()- Reopen boot session
 939 * @phba: Device priv structure instance
 940 *
 941 * return
 942 *      the TAG used for MBOX Command
 943 *
 944 **/
 945unsigned int beiscsi_boot_reopen_sess(struct beiscsi_hba *phba)
 946{
 947        struct be_ctrl_info *ctrl = &phba->ctrl;
 948        struct be_mcc_wrb *wrb;
 949        struct be_cmd_reopen_session_req *req;
 950        unsigned int tag;
 951
 952        mutex_lock(&ctrl->mbox_lock);
 953        wrb = alloc_mcc_wrb(phba, &tag);
 954        if (!wrb) {
 955                mutex_unlock(&ctrl->mbox_lock);
 956                return 0;
 957        }
 958
 959        req = embedded_payload(wrb);
 960        be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
 961        be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
 962                           OPCODE_ISCSI_INI_DRIVER_REOPEN_ALL_SESSIONS,
 963                           sizeof(struct be_cmd_reopen_session_resp));
 964        req->reopen_type = BE_REOPEN_BOOT_SESSIONS;
 965        req->session_handle = BE_BOOT_INVALID_SHANDLE;
 966
 967        phba->boot_struct.tag = tag;
 968        set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);
 969        ctrl->ptag_state[tag].cbfn = beiscsi_boot_process_compl;
 970
 971        be_mcc_notify(phba, tag);
 972        mutex_unlock(&ctrl->mbox_lock);
 973        return tag;
 974}
 975
 976
 977/**
 978 * beiscsi_boot_get_sinfo()- Get boot session info
 979 * @phba: device priv structure instance
 980 *
 981 * Fetches the boot_struct.s_handle info from FW.
 982 * return
 983 *      the TAG used for MBOX Command
 984 *
 985 **/
 986unsigned int beiscsi_boot_get_sinfo(struct beiscsi_hba *phba)
 987{
 988        struct be_ctrl_info *ctrl = &phba->ctrl;
 989        struct be_cmd_get_session_req *req;
 990        struct be_dma_mem *nonemb_cmd;
 991        struct be_mcc_wrb *wrb;
 992        struct be_sge *sge;
 993        unsigned int tag;
 994
 995        mutex_lock(&ctrl->mbox_lock);
 996        wrb = alloc_mcc_wrb(phba, &tag);
 997        if (!wrb) {
 998                mutex_unlock(&ctrl->mbox_lock);
 999                return 0;
1000        }
1001
1002        nonemb_cmd = &phba->boot_struct.nonemb_cmd;
1003        nonemb_cmd->size = sizeof(struct be_cmd_get_session_resp);
1004        nonemb_cmd->va = pci_alloc_consistent(phba->ctrl.pdev,
1005                                              nonemb_cmd->size,
1006                                              &nonemb_cmd->dma);
1007        if (!nonemb_cmd->va) {
1008                mutex_unlock(&ctrl->mbox_lock);
1009                return 0;
1010        }
1011
1012        req = nonemb_cmd->va;
1013        memset(req, 0, sizeof(*req));
1014        sge = nonembedded_sgl(wrb);
1015        be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
1016        be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
1017                           OPCODE_ISCSI_INI_SESSION_GET_A_SESSION,
1018                           sizeof(struct be_cmd_get_session_resp));
1019        req->session_handle = phba->boot_struct.s_handle;
1020        sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
1021        sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
1022        sge->len = cpu_to_le32(nonemb_cmd->size);
1023
1024        phba->boot_struct.tag = tag;
1025        set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);
1026        ctrl->ptag_state[tag].cbfn = beiscsi_boot_process_compl;
1027
1028        be_mcc_notify(phba, tag);
1029        mutex_unlock(&ctrl->mbox_lock);
1030        return tag;
1031}
1032
1033unsigned int __beiscsi_boot_get_shandle(struct beiscsi_hba *phba, int async)
1034{
1035        struct be_ctrl_info *ctrl = &phba->ctrl;
1036        struct be_mcc_wrb *wrb;
1037        struct be_cmd_get_boot_target_req *req;
1038        unsigned int tag;
1039
1040        mutex_lock(&ctrl->mbox_lock);
1041        wrb = alloc_mcc_wrb(phba, &tag);
1042        if (!wrb) {
1043                mutex_unlock(&ctrl->mbox_lock);
1044                return 0;
1045        }
1046
1047        req = embedded_payload(wrb);
1048        be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
1049        be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
1050                           OPCODE_ISCSI_INI_BOOT_GET_BOOT_TARGET,
1051                           sizeof(struct be_cmd_get_boot_target_resp));
1052
1053        if (async) {
1054                phba->boot_struct.tag = tag;
1055                set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);
1056                ctrl->ptag_state[tag].cbfn = beiscsi_boot_process_compl;
1057        }
1058
1059        be_mcc_notify(phba, tag);
1060        mutex_unlock(&ctrl->mbox_lock);
1061        return tag;
1062}
1063
1064/**
1065 * beiscsi_boot_get_shandle()- Get boot session handle
1066 * @phba: device priv structure instance
1067 * @s_handle: session handle returned for boot session.
1068 *
1069 * return
1070 *      Success: 1
1071 *      Failure: negative
1072 *
1073 **/
1074int beiscsi_boot_get_shandle(struct beiscsi_hba *phba, unsigned int *s_handle)
1075{
1076        struct be_cmd_get_boot_target_resp *boot_resp;
1077        struct be_mcc_wrb *wrb;
1078        unsigned int tag;
1079        int rc;
1080
1081        *s_handle = BE_BOOT_INVALID_SHANDLE;
1082        /* get configured boot session count and handle */
1083        tag = __beiscsi_boot_get_shandle(phba, 0);
1084        if (!tag) {
1085                beiscsi_log(phba, KERN_ERR,
1086                            BEISCSI_LOG_CONFIG | BEISCSI_LOG_INIT,
1087                            "BG_%d : Getting Boot Target Info Failed\n");
1088                return -EAGAIN;
1089        }
1090
1091        rc = beiscsi_mccq_compl_wait(phba, tag, &wrb, NULL);
1092        if (rc) {
1093                beiscsi_log(phba, KERN_ERR,
1094                            BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
1095                            "BG_%d : MBX CMD get_boot_target Failed\n");
1096                return -EBUSY;
1097        }
1098
1099        boot_resp = embedded_payload(wrb);
1100        /* check if there are any boot targets configured */
1101        if (!boot_resp->boot_session_count) {
1102                __beiscsi_log(phba, KERN_INFO,
1103                              "BG_%d : No boot targets configured\n");
1104                return -ENXIO;
1105        }
1106
1107        /* only if FW has logged in to the boot target, s_handle is valid */
1108        *s_handle = boot_resp->boot_session_handle;
1109        return 1;
1110}
1111
1112/**
1113 * beiscsi_drvr_ver_disp()- Display the driver Name and Version
1114 * @dev: ptr to device not used.
1115 * @attr: device attribute, not used.
1116 * @buf: contains formatted text driver name and version
1117 *
1118 * return
1119 * size of the formatted string
1120 **/
1121ssize_t
1122beiscsi_drvr_ver_disp(struct device *dev, struct device_attribute *attr,
1123                       char *buf)
1124{
1125        return snprintf(buf, PAGE_SIZE, BE_NAME "\n");
1126}
1127
1128/**
1129 * beiscsi_fw_ver_disp()- Display Firmware Version
1130 * @dev: ptr to device not used.
1131 * @attr: device attribute, not used.
1132 * @buf: contains formatted text Firmware version
1133 *
1134 * return
1135 * size of the formatted string
1136 **/
1137ssize_t
1138beiscsi_fw_ver_disp(struct device *dev, struct device_attribute *attr,
1139                     char *buf)
1140{
1141        struct Scsi_Host *shost = class_to_shost(dev);
1142        struct beiscsi_hba *phba = iscsi_host_priv(shost);
1143
1144        return snprintf(buf, PAGE_SIZE, "%s\n", phba->fw_ver_str);
1145}
1146
1147/**
1148 * beiscsi_active_session_disp()- Display Sessions Active
1149 * @dev: ptr to device not used.
1150 * @attr: device attribute, not used.
1151 * @buf: contains formatted text Session Count
1152 *
1153 * return
1154 * size of the formatted string
1155 **/
1156ssize_t
1157beiscsi_active_session_disp(struct device *dev, struct device_attribute *attr,
1158                         char *buf)
1159{
1160        struct Scsi_Host *shost = class_to_shost(dev);
1161        struct beiscsi_hba *phba = iscsi_host_priv(shost);
1162        uint16_t avlbl_cids = 0, ulp_num, len = 0, total_cids = 0;
1163
1164        for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
1165                if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
1166                        avlbl_cids = BEISCSI_ULP_AVLBL_CID(phba, ulp_num);
1167                        total_cids = BEISCSI_GET_CID_COUNT(phba, ulp_num);
1168                        len += snprintf(buf+len, PAGE_SIZE - len,
1169                                        "ULP%d : %d\n", ulp_num,
1170                                        (total_cids - avlbl_cids));
1171                } else
1172                        len += snprintf(buf+len, PAGE_SIZE - len,
1173                                        "ULP%d : %d\n", ulp_num, 0);
1174        }
1175
1176        return len;
1177}
1178
1179/**
1180 * beiscsi_free_session_disp()- Display Avaliable Session
1181 * @dev: ptr to device not used.
1182 * @attr: device attribute, not used.
1183 * @buf: contains formatted text Session Count
1184 *
1185 * return
1186 * size of the formatted string
1187 **/
1188ssize_t
1189beiscsi_free_session_disp(struct device *dev, struct device_attribute *attr,
1190                       char *buf)
1191{
1192        struct Scsi_Host *shost = class_to_shost(dev);
1193        struct beiscsi_hba *phba = iscsi_host_priv(shost);
1194        uint16_t ulp_num, len = 0;
1195
1196        for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
1197                if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported))
1198                        len += snprintf(buf+len, PAGE_SIZE - len,
1199                                        "ULP%d : %d\n", ulp_num,
1200                                        BEISCSI_ULP_AVLBL_CID(phba, ulp_num));
1201                else
1202                        len += snprintf(buf+len, PAGE_SIZE - len,
1203                                        "ULP%d : %d\n", ulp_num, 0);
1204        }
1205
1206        return len;
1207}
1208
1209/**
1210 * beiscsi_adap_family_disp()- Display adapter family.
1211 * @dev: ptr to device to get priv structure
1212 * @attr: device attribute, not used.
1213 * @buf: contains formatted text driver name and version
1214 *
1215 * return
1216 * size of the formatted string
1217 **/
1218ssize_t
1219beiscsi_adap_family_disp(struct device *dev, struct device_attribute *attr,
1220                          char *buf)
1221{
1222        uint16_t dev_id = 0;
1223        struct Scsi_Host *shost = class_to_shost(dev);
1224        struct beiscsi_hba *phba = iscsi_host_priv(shost);
1225
1226        dev_id = phba->pcidev->device;
1227        switch (dev_id) {
1228        case BE_DEVICE_ID1:
1229        case OC_DEVICE_ID1:
1230        case OC_DEVICE_ID2:
1231                return snprintf(buf, PAGE_SIZE,
1232                                "Obsolete/Unsupported BE2 Adapter Family\n");
1233                break;
1234        case BE_DEVICE_ID2:
1235        case OC_DEVICE_ID3:
1236                return snprintf(buf, PAGE_SIZE, "BE3-R Adapter Family\n");
1237                break;
1238        case OC_SKH_ID1:
1239                return snprintf(buf, PAGE_SIZE, "Skyhawk-R Adapter Family\n");
1240                break;
1241        default:
1242                return snprintf(buf, PAGE_SIZE,
1243                                "Unknown Adapter Family: 0x%x\n", dev_id);
1244                break;
1245        }
1246}
1247
1248/**
1249 * beiscsi_phys_port()- Display Physical Port Identifier
1250 * @dev: ptr to device not used.
1251 * @attr: device attribute, not used.
1252 * @buf: contains formatted text port identifier
1253 *
1254 * return
1255 * size of the formatted string
1256 **/
1257ssize_t
1258beiscsi_phys_port_disp(struct device *dev, struct device_attribute *attr,
1259                         char *buf)
1260{
1261        struct Scsi_Host *shost = class_to_shost(dev);
1262        struct beiscsi_hba *phba = iscsi_host_priv(shost);
1263
1264        return snprintf(buf, PAGE_SIZE, "Port Identifier : %u\n",
1265                        phba->fw_config.phys_port);
1266}
1267
1268void beiscsi_offload_cxn_v0(struct beiscsi_offload_params *params,
1269                             struct wrb_handle *pwrb_handle,
1270                             struct be_mem_descriptor *mem_descr,
1271                             struct hwi_wrb_context *pwrb_context)
1272{
1273        struct iscsi_wrb *pwrb = pwrb_handle->pwrb;
1274
1275        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
1276                      max_send_data_segment_length, pwrb,
1277                      params->dw[offsetof(struct amap_beiscsi_offload_params,
1278                      max_send_data_segment_length) / 32]);
1279        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, type, pwrb,
1280                      BE_TGT_CTX_UPDT_CMD);
1281        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
1282                      first_burst_length,
1283                      pwrb,
1284                      params->dw[offsetof(struct amap_beiscsi_offload_params,
1285                      first_burst_length) / 32]);
1286        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, erl, pwrb,
1287                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1288                      erl) / 32] & OFFLD_PARAMS_ERL));
1289        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, dde, pwrb,
1290                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1291                       dde) / 32] & OFFLD_PARAMS_DDE) >> 2);
1292        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, hde, pwrb,
1293                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1294                      hde) / 32] & OFFLD_PARAMS_HDE) >> 3);
1295        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ir2t, pwrb,
1296                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1297                      ir2t) / 32] & OFFLD_PARAMS_IR2T) >> 4);
1298        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, imd, pwrb,
1299                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1300                      imd) / 32] & OFFLD_PARAMS_IMD) >> 5);
1301        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, stat_sn,
1302                      pwrb,
1303                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1304                      exp_statsn) / 32] + 1));
1305        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, wrb_idx,
1306                      pwrb, pwrb_handle->wrb_index);
1307
1308        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
1309                      max_burst_length, pwrb, params->dw[offsetof
1310                      (struct amap_beiscsi_offload_params,
1311                      max_burst_length) / 32]);
1312
1313        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ptr2nextwrb,
1314                      pwrb, pwrb_handle->wrb_index);
1315        if (pwrb_context->plast_wrb)
1316                AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
1317                              ptr2nextwrb,
1318                              pwrb_context->plast_wrb,
1319                              pwrb_handle->wrb_index);
1320        pwrb_context->plast_wrb = pwrb;
1321
1322        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
1323                      session_state, pwrb, 0);
1324        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, compltonack,
1325                      pwrb, 1);
1326        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, notpredblq,
1327                      pwrb, 0);
1328        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, mode, pwrb,
1329                      0);
1330
1331        mem_descr += ISCSI_MEM_GLOBAL_HEADER;
1332        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
1333                      pad_buffer_addr_hi, pwrb,
1334                      mem_descr->mem_array[0].bus_address.u.a32.address_hi);
1335        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
1336                      pad_buffer_addr_lo, pwrb,
1337                      mem_descr->mem_array[0].bus_address.u.a32.address_lo);
1338}
1339
1340void beiscsi_offload_cxn_v2(struct beiscsi_offload_params *params,
1341                             struct wrb_handle *pwrb_handle,
1342                             struct hwi_wrb_context *pwrb_context)
1343{
1344        struct iscsi_wrb *pwrb = pwrb_handle->pwrb;
1345
1346        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1347                      max_burst_length, pwrb, params->dw[offsetof
1348                      (struct amap_beiscsi_offload_params,
1349                      max_burst_length) / 32]);
1350        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1351                      type, pwrb,
1352                      BE_TGT_CTX_UPDT_CMD);
1353        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1354                      ptr2nextwrb,
1355                      pwrb, pwrb_handle->wrb_index);
1356        if (pwrb_context->plast_wrb)
1357                AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1358                              ptr2nextwrb,
1359                              pwrb_context->plast_wrb,
1360                              pwrb_handle->wrb_index);
1361        pwrb_context->plast_wrb = pwrb;
1362
1363        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, wrb_idx,
1364                      pwrb, pwrb_handle->wrb_index);
1365        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1366                      max_send_data_segment_length, pwrb,
1367                      params->dw[offsetof(struct amap_beiscsi_offload_params,
1368                      max_send_data_segment_length) / 32]);
1369        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1370                      first_burst_length, pwrb,
1371                      params->dw[offsetof(struct amap_beiscsi_offload_params,
1372                      first_burst_length) / 32]);
1373        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1374                      max_recv_dataseg_len, pwrb,
1375                      params->dw[offsetof(struct amap_beiscsi_offload_params,
1376                      max_recv_data_segment_length) / 32]);
1377        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1378                      max_cxns, pwrb, BEISCSI_MAX_CXNS);
1379        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, erl, pwrb,
1380                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1381                      erl) / 32] & OFFLD_PARAMS_ERL));
1382        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, dde, pwrb,
1383                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1384                      dde) / 32] & OFFLD_PARAMS_DDE) >> 2);
1385        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, hde, pwrb,
1386                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1387                      hde) / 32] & OFFLD_PARAMS_HDE) >> 3);
1388        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1389                      ir2t, pwrb,
1390                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1391                      ir2t) / 32] & OFFLD_PARAMS_IR2T) >> 4);
1392        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, imd, pwrb,
1393                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1394                      imd) / 32] & OFFLD_PARAMS_IMD) >> 5);
1395        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1396                      data_seq_inorder,
1397                      pwrb,
1398                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1399                      data_seq_inorder) / 32] &
1400                      OFFLD_PARAMS_DATA_SEQ_INORDER) >> 6);
1401        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1402                      pdu_seq_inorder,
1403                      pwrb,
1404                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1405                      pdu_seq_inorder) / 32] &
1406                      OFFLD_PARAMS_PDU_SEQ_INORDER) >> 7);
1407        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, max_r2t,
1408                      pwrb,
1409                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1410                      max_r2t) / 32] &
1411                      OFFLD_PARAMS_MAX_R2T) >> 8);
1412        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, stat_sn,
1413                      pwrb,
1414                     (params->dw[offsetof(struct amap_beiscsi_offload_params,
1415                      exp_statsn) / 32] + 1));
1416}
1417
1418unsigned int beiscsi_invalidate_cxn(struct beiscsi_hba *phba,
1419                                    struct beiscsi_endpoint *beiscsi_ep)
1420{
1421        struct be_invalidate_connection_params_in *req;
1422        struct be_ctrl_info *ctrl = &phba->ctrl;
1423        struct be_mcc_wrb *wrb;
1424        unsigned int tag = 0;
1425
1426        mutex_lock(&ctrl->mbox_lock);
1427        wrb = alloc_mcc_wrb(phba, &tag);
1428        if (!wrb) {
1429                mutex_unlock(&ctrl->mbox_lock);
1430                return 0;
1431        }
1432
1433        req = embedded_payload(wrb);
1434        be_wrb_hdr_prepare(wrb, sizeof(union be_invalidate_connection_params),
1435                           true, 0);
1436        be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
1437                           OPCODE_ISCSI_INI_DRIVER_INVALIDATE_CONNECTION,
1438                           sizeof(*req));
1439        req->session_handle = beiscsi_ep->fw_handle;
1440        req->cid = beiscsi_ep->ep_cid;
1441        if (beiscsi_ep->conn)
1442                req->cleanup_type = BE_CLEANUP_TYPE_INVALIDATE;
1443        else
1444                req->cleanup_type = BE_CLEANUP_TYPE_ISSUE_TCP_RST;
1445        /**
1446         * 0 - non-persistent targets
1447         * 1 - save session info on flash
1448         */
1449        req->save_cfg = 0;
1450        be_mcc_notify(phba, tag);
1451        mutex_unlock(&ctrl->mbox_lock);
1452        return tag;
1453}
1454
1455unsigned int beiscsi_upload_cxn(struct beiscsi_hba *phba,
1456                                struct beiscsi_endpoint *beiscsi_ep)
1457{
1458        struct be_ctrl_info *ctrl = &phba->ctrl;
1459        struct be_mcc_wrb *wrb;
1460        struct be_tcp_upload_params_in *req;
1461        unsigned int tag;
1462
1463        mutex_lock(&ctrl->mbox_lock);
1464        wrb = alloc_mcc_wrb(phba, &tag);
1465        if (!wrb) {
1466                mutex_unlock(&ctrl->mbox_lock);
1467                return 0;
1468        }
1469
1470        req = embedded_payload(wrb);
1471        be_wrb_hdr_prepare(wrb, sizeof(union be_tcp_upload_params), true, 0);
1472        be_cmd_hdr_prepare(&req->hdr, CMD_COMMON_TCP_UPLOAD,
1473                           OPCODE_COMMON_TCP_UPLOAD, sizeof(*req));
1474        req->id = beiscsi_ep->ep_cid;
1475        if (beiscsi_ep->conn)
1476                req->upload_type = BE_UPLOAD_TYPE_GRACEFUL;
1477        else
1478                req->upload_type = BE_UPLOAD_TYPE_ABORT;
1479        be_mcc_notify(phba, tag);
1480        mutex_unlock(&ctrl->mbox_lock);
1481        return tag;
1482}
1483
1484int beiscsi_mgmt_invalidate_icds(struct beiscsi_hba *phba,
1485                                 struct invldt_cmd_tbl *inv_tbl,
1486                                 unsigned int nents)
1487{
1488        struct be_ctrl_info *ctrl = &phba->ctrl;
1489        struct invldt_cmds_params_in *req;
1490        struct be_dma_mem nonemb_cmd;
1491        struct be_mcc_wrb *wrb;
1492        unsigned int i, tag;
1493        struct be_sge *sge;
1494        int rc;
1495
1496        if (!nents || nents > BE_INVLDT_CMD_TBL_SZ)
1497                return -EINVAL;
1498
1499        nonemb_cmd.size = sizeof(union be_invldt_cmds_params);
1500        nonemb_cmd.va = pci_zalloc_consistent(phba->ctrl.pdev,
1501                                              nonemb_cmd.size,
1502                                              &nonemb_cmd.dma);
1503        if (!nonemb_cmd.va) {
1504                beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_EH,
1505                            "BM_%d : invldt_cmds_params alloc failed\n");
1506                return -ENOMEM;
1507        }
1508
1509        mutex_lock(&ctrl->mbox_lock);
1510        wrb = alloc_mcc_wrb(phba, &tag);
1511        if (!wrb) {
1512                mutex_unlock(&ctrl->mbox_lock);
1513                pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
1514                                    nonemb_cmd.va, nonemb_cmd.dma);
1515                return -ENOMEM;
1516        }
1517
1518        req = nonemb_cmd.va;
1519        be_wrb_hdr_prepare(wrb, nonemb_cmd.size, false, 1);
1520        be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
1521                        OPCODE_COMMON_ISCSI_ERROR_RECOVERY_INVALIDATE_COMMANDS,
1522                        sizeof(*req));
1523        req->ref_handle = 0;
1524        req->cleanup_type = CMD_ISCSI_COMMAND_INVALIDATE;
1525        for (i = 0; i < nents; i++) {
1526                req->table[i].icd = inv_tbl[i].icd;
1527                req->table[i].cid = inv_tbl[i].cid;
1528                req->icd_count++;
1529        }
1530        sge = nonembedded_sgl(wrb);
1531        sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd.dma));
1532        sge->pa_lo = cpu_to_le32(lower_32_bits(nonemb_cmd.dma));
1533        sge->len = cpu_to_le32(nonemb_cmd.size);
1534
1535        be_mcc_notify(phba, tag);
1536        mutex_unlock(&ctrl->mbox_lock);
1537
1538        rc = beiscsi_mccq_compl_wait(phba, tag, NULL, &nonemb_cmd);
1539        if (rc != -EBUSY)
1540                pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
1541                                    nonemb_cmd.va, nonemb_cmd.dma);
1542        return rc;
1543}
1544