drivers/scsi/be2iscsi/be_mgmt.c

   1 /**
   2  * Copyright (C) 2005 - 2011 Emulex
   3  * All rights reserved.
   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  * Written by: Jayamohan Kallickal (jayamohan.kallickal@emulex.com)
  11  *
  12  * Contact Information:
  13  * linux-drivers@emulex.com
  14  *
  15  * Emulex
  16  * 3333 Susan Street
  17  * Costa Mesa, CA 92626
  18  */
  19
  20 #include "be_mgmt.h"
  21 #include "be_iscsi.h"
  22 #include <scsi/scsi_transport_iscsi.h>
  23
  24 unsigned int beiscsi_get_boot_target(struct beiscsi_hba *phba)
  25 {
  26         struct be_ctrl_info *ctrl = &phba->ctrl;
  27         struct be_mcc_wrb *wrb;
  28         struct be_cmd_req_get_mac_addr *req;
  29         unsigned int tag = 0;
  30
  31         SE_DEBUG(DBG_LVL_8, "In bescsi_get_boot_target\n");
  32         spin_lock(&ctrl->mbox_lock);
  33         tag = alloc_mcc_tag(phba);
  34         if (!tag) {
  35                 spin_unlock(&ctrl->mbox_lock);
  36                 return tag;
  37         }
  38
  39         wrb = wrb_from_mccq(phba);
  40         req = embedded_payload(wrb);
  41         wrb->tag0 |= tag;
  42         be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
  43         be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
  44                            OPCODE_ISCSI_INI_BOOT_GET_BOOT_TARGET,
  45                            sizeof(*req));
  46
  47         be_mcc_notify(phba);
  48         spin_unlock(&ctrl->mbox_lock);
  49         return tag;
  50 }
  51
  52 unsigned int beiscsi_get_session_info(struct beiscsi_hba *phba,
  53                                   u32 boot_session_handle,
  54                                   struct be_dma_mem *nonemb_cmd)
  55 {
  56         struct be_ctrl_info *ctrl = &phba->ctrl;
  57         struct be_mcc_wrb *wrb;
  58         unsigned int tag = 0;
  59         struct  be_cmd_req_get_session *req;
  60         struct be_cmd_resp_get_session *resp;
  61         struct be_sge *sge;
  62
  63         SE_DEBUG(DBG_LVL_8, "In beiscsi_get_session_info\n");
  64         spin_lock(&ctrl->mbox_lock);
  65         tag = alloc_mcc_tag(phba);
  66         if (!tag) {
  67                 spin_unlock(&ctrl->mbox_lock);
  68                 return tag;
  69         }
  70
  71         nonemb_cmd->size = sizeof(*resp);
  72         req = nonemb_cmd->va;
  73         memset(req, 0, sizeof(*req));
  74         wrb = wrb_from_mccq(phba);
  75         sge = nonembedded_sgl(wrb);
  76         wrb->tag0 |= tag;
  77
  78
  79         wrb->tag0 |= tag;
  80         be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
  81         be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
  82                            OPCODE_ISCSI_INI_SESSION_GET_A_SESSION,
  83                            sizeof(*resp));
  84         req->session_handle = boot_session_handle;
  85         sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
  86         sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
  87         sge->len = cpu_to_le32(nonemb_cmd->size);
  88
  89         be_mcc_notify(phba);
  90         spin_unlock(&ctrl->mbox_lock);
  91         return tag;
  92 }
  93
  94 int mgmt_get_fw_config(struct be_ctrl_info *ctrl,
  95                                 struct beiscsi_hba *phba)
  96 {
  97         struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
  98         struct be_fw_cfg *req = embedded_payload(wrb);
  99         int status = 0;
 100
 101         spin_lock(&ctrl->mbox_lock);
 102         memset(wrb, 0, sizeof(*wrb));
 103
 104         be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
 105
 106         be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
 107                            OPCODE_COMMON_QUERY_FIRMWARE_CONFIG, sizeof(*req));
 108         status = be_mbox_notify(ctrl);
 109         if (!status) {
 110                 struct be_fw_cfg *pfw_cfg;
 111                 pfw_cfg = req;
 112                 phba->fw_config.phys_port = pfw_cfg->phys_port;
 113                 phba->fw_config.iscsi_icd_start =
 114                                         pfw_cfg->ulp[0].icd_base;
 115                 phba->fw_config.iscsi_icd_count =
 116                                         pfw_cfg->ulp[0].icd_count;
 117                 phba->fw_config.iscsi_cid_start =
 118                                         pfw_cfg->ulp[0].sq_base;
 119                 phba->fw_config.iscsi_cid_count =
 120                                         pfw_cfg->ulp[0].sq_count;
 121                 if (phba->fw_config.iscsi_cid_count > (BE2_MAX_SESSIONS / 2)) {
 122                         SE_DEBUG(DBG_LVL_8,
 123                                 "FW reported MAX CXNS as %d\t"
 124                                 "Max Supported = %d.\n",
 125                                 phba->fw_config.iscsi_cid_count,
 126                                 BE2_MAX_SESSIONS);
 127                         phba->fw_config.iscsi_cid_count = BE2_MAX_SESSIONS / 2;
 128                 }
 129         } else {
 130                 shost_printk(KERN_WARNING, phba->shost,
 131                              "Failed in mgmt_get_fw_config\n");
 132         }
 133
 134         spin_unlock(&ctrl->mbox_lock);
 135         return status;
 136 }
 137
 138 int mgmt_check_supported_fw(struct be_ctrl_info *ctrl,
 139                                       struct beiscsi_hba *phba)
 140 {
 141         struct be_dma_mem nonemb_cmd;
 142         struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
 143         struct be_mgmt_controller_attributes *req;
 144         struct be_sge *sge = nonembedded_sgl(wrb);
 145         int status = 0;
 146
 147         nonemb_cmd.va = pci_alloc_consistent(ctrl->pdev,
 148                                 sizeof(struct be_mgmt_controller_attributes),
 149                                 &nonemb_cmd.dma);
 150         if (nonemb_cmd.va == NULL) {
 151                 SE_DEBUG(DBG_LVL_1,
 152                          "Failed to allocate memory for mgmt_check_supported_fw"
 153                          "\n");
 154                 return -ENOMEM;
 155         }
 156         nonemb_cmd.size = sizeof(struct be_mgmt_controller_attributes);
 157         req = nonemb_cmd.va;
 158         memset(req, 0, sizeof(*req));
 159         spin_lock(&ctrl->mbox_lock);
 160         memset(wrb, 0, sizeof(*wrb));
 161         be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
 162         be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
 163                            OPCODE_COMMON_GET_CNTL_ATTRIBUTES, sizeof(*req));
 164         sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd.dma));
 165         sge->pa_lo = cpu_to_le32(nonemb_cmd.dma & 0xFFFFFFFF);
 166         sge->len = cpu_to_le32(nonemb_cmd.size);
 167         status = be_mbox_notify(ctrl);
 168         if (!status) {
 169                 struct be_mgmt_controller_attributes_resp *resp = nonemb_cmd.va;
 170                 SE_DEBUG(DBG_LVL_8, "Firmware version of CMD: %s\n",
 171                         resp->params.hba_attribs.flashrom_version_string);
 172                 SE_DEBUG(DBG_LVL_8, "Firmware version is : %s\n",
 173                         resp->params.hba_attribs.firmware_version_string);
 174                 SE_DEBUG(DBG_LVL_8,
 175                         "Developer Build, not performing version check...\n");
 176                 phba->fw_config.iscsi_features =
 177                                 resp->params.hba_attribs.iscsi_features;
 178                 SE_DEBUG(DBG_LVL_8, " phba->fw_config.iscsi_features = %d\n",
 179                                       phba->fw_config.iscsi_features);
 180         } else
 181                 SE_DEBUG(DBG_LVL_1, " Failed in mgmt_check_supported_fw\n");
 182         spin_unlock(&ctrl->mbox_lock);
 183         if (nonemb_cmd.va)
 184                 pci_free_consistent(ctrl->pdev, nonemb_cmd.size,
 185                                     nonemb_cmd.va, nonemb_cmd.dma);
 186
 187         return status;
 188 }
 189
 190 int mgmt_epfw_cleanup(struct beiscsi_hba *phba, unsigned short chute)
 191 {
 192         struct be_ctrl_info *ctrl = &phba->ctrl;
 193         struct be_mcc_wrb *wrb = wrb_from_mccq(phba);
 194         struct iscsi_cleanup_req *req = embedded_payload(wrb);
 195         int status = 0;
 196
 197         spin_lock(&ctrl->mbox_lock);
 198         memset(wrb, 0, sizeof(*wrb));
 199
 200         be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
 201         be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
 202                            OPCODE_COMMON_ISCSI_CLEANUP, sizeof(*req));
 203
 204         req->chute = chute;
 205         req->hdr_ring_id = cpu_to_le16(HWI_GET_DEF_HDRQ_ID(phba));
 206         req->data_ring_id = cpu_to_le16(HWI_GET_DEF_BUFQ_ID(phba));
 207
 208         status =  be_mcc_notify_wait(phba);
 209         if (status)
 210                 shost_printk(KERN_WARNING, phba->shost,
 211                              " mgmt_epfw_cleanup , FAILED\n");
 212         spin_unlock(&ctrl->mbox_lock);
 213         return status;
 214 }
 215
 216 unsigned int  mgmt_invalidate_icds(struct beiscsi_hba *phba,
 217                                 struct invalidate_command_table *inv_tbl,
 218                                 unsigned int num_invalidate, unsigned int cid,
 219                                 struct be_dma_mem *nonemb_cmd)
 220
 221 {
 222         struct be_ctrl_info *ctrl = &phba->ctrl;
 223         struct be_mcc_wrb *wrb;
 224         struct be_sge *sge;
 225         struct invalidate_commands_params_in *req;
 226         unsigned int i, tag = 0;
 227
 228         spin_lock(&ctrl->mbox_lock);
 229         tag = alloc_mcc_tag(phba);
 230         if (!tag) {
 231                 spin_unlock(&ctrl->mbox_lock);
 232                 return tag;
 233         }
 234
 235         req = nonemb_cmd->va;
 236         memset(req, 0, sizeof(*req));
 237         wrb = wrb_from_mccq(phba);
 238         sge = nonembedded_sgl(wrb);
 239         wrb->tag0 |= tag;
 240
 241         be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
 242         be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
 243                         OPCODE_COMMON_ISCSI_ERROR_RECOVERY_INVALIDATE_COMMANDS,
 244                         sizeof(*req));
 245         req->ref_handle = 0;
 246         req->cleanup_type = CMD_ISCSI_COMMAND_INVALIDATE;
 247         for (i = 0; i < num_invalidate; i++) {
 248                 req->table[i].icd = inv_tbl->icd;
 249                 req->table[i].cid = inv_tbl->cid;
 250                 req->icd_count++;
 251                 inv_tbl++;
 252         }
 253         sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
 254         sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
 255         sge->len = cpu_to_le32(nonemb_cmd->size);
 256
 257         be_mcc_notify(phba);
 258         spin_unlock(&ctrl->mbox_lock);
 259         return tag;
 260 }
 261
 262 unsigned int mgmt_invalidate_connection(struct beiscsi_hba *phba,
 263                                          struct beiscsi_endpoint *beiscsi_ep,
 264                                          unsigned short cid,
 265                                          unsigned short issue_reset,
 266                                          unsigned short savecfg_flag)
 267 {
 268         struct be_ctrl_info *ctrl = &phba->ctrl;
 269         struct be_mcc_wrb *wrb;
 270         struct iscsi_invalidate_connection_params_in *req;
 271         unsigned int tag = 0;
 272
 273         spin_lock(&ctrl->mbox_lock);
 274         tag = alloc_mcc_tag(phba);
 275         if (!tag) {
 276                 spin_unlock(&ctrl->mbox_lock);
 277                 return tag;
 278         }
 279         wrb = wrb_from_mccq(phba);
 280         wrb->tag0 |= tag;
 281         req = embedded_payload(wrb);
 282
 283         be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
 284         be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
 285                            OPCODE_ISCSI_INI_DRIVER_INVALIDATE_CONNECTION,
 286                            sizeof(*req));
 287         req->session_handle = beiscsi_ep->fw_handle;
 288         req->cid = cid;
 289         if (issue_reset)
 290                 req->cleanup_type = CMD_ISCSI_CONNECTION_ISSUE_TCP_RST;
 291         else
 292                 req->cleanup_type = CMD_ISCSI_CONNECTION_INVALIDATE;
 293         req->save_cfg = savecfg_flag;
 294         be_mcc_notify(phba);
 295         spin_unlock(&ctrl->mbox_lock);
 296         return tag;
 297 }
 298
 299 unsigned int mgmt_upload_connection(struct beiscsi_hba *phba,
 300                                 unsigned short cid, unsigned int upload_flag)
 301 {
 302         struct be_ctrl_info *ctrl = &phba->ctrl;
 303         struct be_mcc_wrb *wrb;
 304         struct tcp_upload_params_in *req;
 305         unsigned int tag = 0;
 306
 307         spin_lock(&ctrl->mbox_lock);
 308         tag = alloc_mcc_tag(phba);
 309         if (!tag) {
 310                 spin_unlock(&ctrl->mbox_lock);
 311                 return tag;
 312         }
 313         wrb = wrb_from_mccq(phba);
 314         req = embedded_payload(wrb);
 315         wrb->tag0 |= tag;
 316
 317         be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
 318         be_cmd_hdr_prepare(&req->hdr, CMD_COMMON_TCP_UPLOAD,
 319                            OPCODE_COMMON_TCP_UPLOAD, sizeof(*req));
 320         req->id = (unsigned short)cid;
 321         req->upload_type = (unsigned char)upload_flag;
 322         be_mcc_notify(phba);
 323         spin_unlock(&ctrl->mbox_lock);
 324         return tag;
 325 }
 326
 327 int mgmt_open_connection(struct beiscsi_hba *phba,
 328                          struct sockaddr *dst_addr,
 329                          struct beiscsi_endpoint *beiscsi_ep,
 330                          struct be_dma_mem *nonemb_cmd)
 331
 332 {
 333         struct hwi_controller *phwi_ctrlr;
 334         struct hwi_context_memory *phwi_context;
 335         struct sockaddr_in *daddr_in = (struct sockaddr_in *)dst_addr;
 336         struct sockaddr_in6 *daddr_in6 = (struct sockaddr_in6 *)dst_addr;
 337         struct be_ctrl_info *ctrl = &phba->ctrl;
 338         struct be_mcc_wrb *wrb;
 339         struct tcp_connect_and_offload_in *req;
 340         unsigned short def_hdr_id;
 341         unsigned short def_data_id;
 342         struct phys_addr template_address = { 0, 0 };
 343         struct phys_addr *ptemplate_address;
 344         unsigned int tag = 0;
 345         unsigned int i;
 346         unsigned short cid = beiscsi_ep->ep_cid;
 347         struct be_sge *sge;
 348
 349         phwi_ctrlr = phba->phwi_ctrlr;
 350         phwi_context = phwi_ctrlr->phwi_ctxt;
 351         def_hdr_id = (unsigned short)HWI_GET_DEF_HDRQ_ID(phba);
 352         def_data_id = (unsigned short)HWI_GET_DEF_BUFQ_ID(phba);
 353
 354         ptemplate_address = &template_address;
 355         ISCSI_GET_PDU_TEMPLATE_ADDRESS(phba, ptemplate_address);
 356         spin_lock(&ctrl->mbox_lock);
 357         tag = alloc_mcc_tag(phba);
 358         if (!tag) {
 359                 spin_unlock(&ctrl->mbox_lock);
 360                 return tag;
 361         }
 362         wrb = wrb_from_mccq(phba);
 363         memset(wrb, 0, sizeof(*wrb));
 364         sge = nonembedded_sgl(wrb);
 365
 366         req = nonemb_cmd->va;
 367         memset(req, 0, sizeof(*req));
 368         wrb->tag0 |= tag;
 369
 370         be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
 371         be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
 372                            OPCODE_COMMON_ISCSI_TCP_CONNECT_AND_OFFLOAD,
 373                            sizeof(*req));
 374         if (dst_addr->sa_family == PF_INET) {
 375                 __be32 s_addr = daddr_in->sin_addr.s_addr;
 376                 req->ip_address.ip_type = BE2_IPV4;
 377                 req->ip_address.ip_address[0] = s_addr & 0x000000ff;
 378                 req->ip_address.ip_address[1] = (s_addr & 0x0000ff00) >> 8;
 379                 req->ip_address.ip_address[2] = (s_addr & 0x00ff0000) >> 16;
 380                 req->ip_address.ip_address[3] = (s_addr & 0xff000000) >> 24;
 381                 req->tcp_port = ntohs(daddr_in->sin_port);
 382                 beiscsi_ep->dst_addr = daddr_in->sin_addr.s_addr;
 383                 beiscsi_ep->dst_tcpport = ntohs(daddr_in->sin_port);
 384                 beiscsi_ep->ip_type = BE2_IPV4;
 385         } else if (dst_addr->sa_family == PF_INET6) {
 386                 req->ip_address.ip_type = BE2_IPV6;
 387                 memcpy(&req->ip_address.ip_address,
 388                        &daddr_in6->sin6_addr.in6_u.u6_addr8, 16);
 389                 req->tcp_port = ntohs(daddr_in6->sin6_port);
 390                 beiscsi_ep->dst_tcpport = ntohs(daddr_in6->sin6_port);
 391                 memcpy(&beiscsi_ep->dst6_addr,
 392                        &daddr_in6->sin6_addr.in6_u.u6_addr8, 16);
 393                 beiscsi_ep->ip_type = BE2_IPV6;
 394         } else{
 395                 shost_printk(KERN_ERR, phba->shost, "unknown addr family %d\n",
 396                              dst_addr->sa_family);
 397                 spin_unlock(&ctrl->mbox_lock);
 398                 free_mcc_tag(&phba->ctrl, tag);
 399                 return -EINVAL;
 400
 401         }
 402         req->cid = cid;
 403         i = phba->nxt_cqid++;
 404         if (phba->nxt_cqid == phba->num_cpus)
 405                 phba->nxt_cqid = 0;
 406         req->cq_id = phwi_context->be_cq[i].id;
 407         SE_DEBUG(DBG_LVL_8, "i=%d cq_id=%d\n", i, req->cq_id);
 408         req->defq_id = def_hdr_id;
 409         req->hdr_ring_id = def_hdr_id;
 410         req->data_ring_id = def_data_id;
 411         req->do_offload = 1;
 412         req->dataout_template_pa.lo = ptemplate_address->lo;
 413         req->dataout_template_pa.hi = ptemplate_address->hi;
 414         sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
 415         sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
 416         sge->len = cpu_to_le32(nonemb_cmd->size);
 417         be_mcc_notify(phba);
 418         spin_unlock(&ctrl->mbox_lock);
 419         return tag;
 420 }
 421
 422 unsigned int be_cmd_get_mac_addr(struct beiscsi_hba *phba)
 423 {
 424         struct be_ctrl_info *ctrl = &phba->ctrl;
 425         struct be_mcc_wrb *wrb;
 426         struct be_cmd_req_get_mac_addr *req;
 427         unsigned int tag = 0;
 428
 429         SE_DEBUG(DBG_LVL_8, "In be_cmd_get_mac_addr\n");
 430         spin_lock(&ctrl->mbox_lock);
 431         tag = alloc_mcc_tag(phba);
 432         if (!tag) {
 433                 spin_unlock(&ctrl->mbox_lock);
 434                 return tag;
 435         }
 436
 437         wrb = wrb_from_mccq(phba);
 438         req = embedded_payload(wrb);
 439         wrb->tag0 |= tag;
 440         be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
 441         be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
 442                            OPCODE_COMMON_ISCSI_NTWK_GET_NIC_CONFIG,
 443                            sizeof(*req));
 444
 445         be_mcc_notify(phba);
 446         spin_unlock(&ctrl->mbox_lock);
 447         return tag;
 448 }
 449