release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/scsi/be2iscsi/be_mgmt.c

   1 /**
   2  * Copyright (C) 2005 - 2010 ServerEngines
   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 (jayamohank@serverengines.com)
  11  *
  12  * Contact Information:
  13  * linux-drivers@serverengines.com
  14  *
  15  * ServerEngines
  16  * 209 N. Fair Oaks Ave
  17  * Sunnyvale, CA 94085
  18  *
  19  */
  20
  21 #include "be_mgmt.h"
  22 #include "be_iscsi.h"
  23 #include <scsi/scsi_transport_iscsi.h>
  24
  25 unsigned int beiscsi_get_boot_target(struct beiscsi_hba *phba)
  26 {
  27         struct be_ctrl_info *ctrl = &phba->ctrl;
  28         struct be_mcc_wrb *wrb;
  29         struct be_cmd_req_get_mac_addr *req;
  30         unsigned int tag = 0;
  31
  32         SE_DEBUG(DBG_LVL_8, "In bescsi_get_boot_target\n");
  33         spin_lock(&ctrl->mbox_lock);
  34         tag = alloc_mcc_tag(phba);
  35         if (!tag) {
  36                 spin_unlock(&ctrl->mbox_lock);
  37                 return tag;
  38         }
  39
  40         wrb = wrb_from_mccq(phba);
  41         req = embedded_payload(wrb);
  42         wrb->tag0 |= tag;
  43         be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
  44         be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
  45                            OPCODE_ISCSI_INI_BOOT_GET_BOOT_TARGET,
  46                            sizeof(*req));
  47
  48         be_mcc_notify(phba);
  49         spin_unlock(&ctrl->mbox_lock);
  50         return tag;
  51 }
  52
  53 unsigned int beiscsi_get_session_info(struct beiscsi_hba *phba,
  54                                   u32 boot_session_handle,
  55                                   struct be_dma_mem *nonemb_cmd)
  56 {
  57         struct be_ctrl_info *ctrl = &phba->ctrl;
  58         struct be_mcc_wrb *wrb;
  59         unsigned int tag = 0;
  60         struct  be_cmd_req_get_session *req;
  61         struct be_cmd_resp_get_session *resp;
  62         struct be_sge *sge;
  63
  64         SE_DEBUG(DBG_LVL_8, "In beiscsi_get_session_info\n");
  65         spin_lock(&ctrl->mbox_lock);
  66         tag = alloc_mcc_tag(phba);
  67         if (!tag) {
  68                 spin_unlock(&ctrl->mbox_lock);
  69                 return tag;
  70         }
  71
  72         nonemb_cmd->size = sizeof(*resp);
  73         req = nonemb_cmd->va;
  74         memset(req, 0, sizeof(*req));
  75         wrb = wrb_from_mccq(phba);
  76         sge = nonembedded_sgl(wrb);
  77         wrb->tag0 |= tag;
  78
  79
  80         wrb->tag0 |= tag;
  81         be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
  82         be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
  83                            OPCODE_ISCSI_INI_SESSION_GET_A_SESSION,
  84                            sizeof(*resp));
  85         req->session_handle = boot_session_handle;
  86         sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
  87         sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
  88         sge->len = cpu_to_le32(nonemb_cmd->size);
  89
  90         be_mcc_notify(phba);
  91         spin_unlock(&ctrl->mbox_lock);
  92         return tag;
  93 }
  94
  95 int mgmt_get_fw_config(struct be_ctrl_info *ctrl,
  96                                 struct beiscsi_hba *phba)
  97 {
  98         struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
  99         struct be_fw_cfg *req = embedded_payload(wrb);
 100         int status = 0;
 101
 102         spin_lock(&ctrl->mbox_lock);
 103         memset(wrb, 0, sizeof(*wrb));
 104
 105         be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
 106
 107         be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
 108                            OPCODE_COMMON_QUERY_FIRMWARE_CONFIG, sizeof(*req));
 109         status = be_mbox_notify(ctrl);
 110         if (!status) {
 111                 struct be_fw_cfg *pfw_cfg;
 112                 pfw_cfg = req;
 113                 phba->fw_config.phys_port = pfw_cfg->phys_port;
 114                 phba->fw_config.iscsi_icd_start =
 115                                         pfw_cfg->ulp[0].icd_base;
 116                 phba->fw_config.iscsi_icd_count =
 117                                         pfw_cfg->ulp[0].icd_count;
 118                 phba->fw_config.iscsi_cid_start =
 119                                         pfw_cfg->ulp[0].sq_base;
 120                 phba->fw_config.iscsi_cid_count =
 121                                         pfw_cfg->ulp[0].sq_count;
 122                 if (phba->fw_config.iscsi_cid_count > (BE2_MAX_SESSIONS / 2)) {
 123                         SE_DEBUG(DBG_LVL_8,
 124                                 "FW reported MAX CXNS as %d\t"
 125                                 "Max Supported = %d.\n",
 126                                 phba->fw_config.iscsi_cid_count,
 127                                 BE2_MAX_SESSIONS);
 128                         phba->fw_config.iscsi_cid_count = BE2_MAX_SESSIONS / 2;
 129                 }
 130         } else {
 131                 shost_printk(KERN_WARNING, phba->shost,
 132                              "Failed in mgmt_get_fw_config\n");
 133         }
 134
 135         spin_unlock(&ctrl->mbox_lock);
 136         return status;
 137 }
 138
 139 int mgmt_check_supported_fw(struct be_ctrl_info *ctrl,
 140                                       struct beiscsi_hba *phba)
 141 {
 142         struct be_dma_mem nonemb_cmd;
 143         struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
 144         struct be_mgmt_controller_attributes *req;
 145         struct be_sge *sge = nonembedded_sgl(wrb);
 146         int status = 0;
 147
 148         nonemb_cmd.va = pci_alloc_consistent(ctrl->pdev,
 149                                 sizeof(struct be_mgmt_controller_attributes),
 150                                 &nonemb_cmd.dma);
 151         if (nonemb_cmd.va == NULL) {
 152                 SE_DEBUG(DBG_LVL_1,
 153                          "Failed to allocate memory for mgmt_check_supported_fw"
 154                          "\n");
 155                 return -ENOMEM;
 156         }
 157         nonemb_cmd.size = sizeof(struct be_mgmt_controller_attributes);
 158         req = nonemb_cmd.va;
 159         memset(req, 0, sizeof(*req));
 160         spin_lock(&ctrl->mbox_lock);
 161         memset(wrb, 0, sizeof(*wrb));
 162         be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
 163         be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
 164                            OPCODE_COMMON_GET_CNTL_ATTRIBUTES, sizeof(*req));
 165         sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd.dma));
 166         sge->pa_lo = cpu_to_le32(nonemb_cmd.dma & 0xFFFFFFFF);
 167         sge->len = cpu_to_le32(nonemb_cmd.size);
 168         status = be_mbox_notify(ctrl);
 169         if (!status) {
 170                 struct be_mgmt_controller_attributes_resp *resp = nonemb_cmd.va;
 171                 SE_DEBUG(DBG_LVL_8, "Firmware version of CMD: %s\n",
 172                         resp->params.hba_attribs.flashrom_version_string);
 173                 SE_DEBUG(DBG_LVL_8, "Firmware version is : %s\n",
 174                         resp->params.hba_attribs.firmware_version_string);
 175                 SE_DEBUG(DBG_LVL_8,
 176                         "Developer Build, not performing version check...\n");
 177                 phba->fw_config.iscsi_features =
 178                                 resp->params.hba_attribs.iscsi_features;
 179                 SE_DEBUG(DBG_LVL_8, " phba->fw_config.iscsi_features = %d\n",
 180                                       phba->fw_config.iscsi_features);
 181         } else
 182                 SE_DEBUG(DBG_LVL_1, " Failed in mgmt_check_supported_fw\n");
 183         spin_unlock(&ctrl->mbox_lock);
 184         if (nonemb_cmd.va)
 185                 pci_free_consistent(ctrl->pdev, nonemb_cmd.size,
 186                                     nonemb_cmd.va, nonemb_cmd.dma);
 187
 188         return status;
 189 }
 190
 191 int mgmt_epfw_cleanup(struct beiscsi_hba *phba, unsigned short chute)
 192 {
 193         struct be_ctrl_info *ctrl = &phba->ctrl;
 194         struct be_mcc_wrb *wrb = wrb_from_mccq(phba);
 195         struct iscsi_cleanup_req *req = embedded_payload(wrb);
 196         int status = 0;
 197
 198         spin_lock(&ctrl->mbox_lock);
 199         memset(wrb, 0, sizeof(*wrb));
 200
 201         be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
 202         be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
 203                            OPCODE_COMMON_ISCSI_CLEANUP, sizeof(*req));
 204
 205         req->chute = chute;
 206         req->hdr_ring_id = 0;
 207         req->data_ring_id = 0;
 208
 209         status =  be_mcc_notify_wait(phba);
 210         if (status)
 211                 shost_printk(KERN_WARNING, phba->shost,
 212                              " mgmt_epfw_cleanup , FAILED\n");
 213         spin_unlock(&ctrl->mbox_lock);
 214         return status;
 215 }
 216
 217 unsigned int  mgmt_invalidate_icds(struct beiscsi_hba *phba,
 218                                 struct invalidate_command_table *inv_tbl,
 219                                 unsigned int num_invalidate, unsigned int cid,
 220                                 struct be_dma_mem *nonemb_cmd)
 221
 222 {
 223         struct be_ctrl_info *ctrl = &phba->ctrl;
 224         struct be_mcc_wrb *wrb;
 225         struct be_sge *sge;
 226         struct invalidate_commands_params_in *req;
 227         unsigned int i, tag = 0;
 228
 229         spin_lock(&ctrl->mbox_lock);
 230         tag = alloc_mcc_tag(phba);
 231         if (!tag) {
 232                 spin_unlock(&ctrl->mbox_lock);
 233                 return tag;
 234         }
 235
 236         req = nonemb_cmd->va;
 237         memset(req, 0, sizeof(*req));
 238         wrb = wrb_from_mccq(phba);
 239         sge = nonembedded_sgl(wrb);
 240         wrb->tag0 |= tag;
 241
 242         be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
 243         be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
 244                         OPCODE_COMMON_ISCSI_ERROR_RECOVERY_INVALIDATE_COMMANDS,
 245                         sizeof(*req));
 246         req->ref_handle = 0;
 247         req->cleanup_type = CMD_ISCSI_COMMAND_INVALIDATE;
 248         for (i = 0; i < num_invalidate; i++) {
 249                 req->table[i].icd = inv_tbl->icd;
 250                 req->table[i].cid = inv_tbl->cid;
 251                 req->icd_count++;
 252                 inv_tbl++;
 253         }
 254         sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
 255         sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
 256         sge->len = cpu_to_le32(nonemb_cmd->size);
 257
 258         be_mcc_notify(phba);
 259         spin_unlock(&ctrl->mbox_lock);
 260         return tag;
 261 }
 262
 263 unsigned int mgmt_invalidate_connection(struct beiscsi_hba *phba,
 264                                          struct beiscsi_endpoint *beiscsi_ep,
 265                                          unsigned short cid,
 266                                          unsigned short issue_reset,
 267                                          unsigned short savecfg_flag)
 268 {
 269         struct be_ctrl_info *ctrl = &phba->ctrl;
 270         struct be_mcc_wrb *wrb;
 271         struct iscsi_invalidate_connection_params_in *req;
 272         unsigned int tag = 0;
 273
 274         spin_lock(&ctrl->mbox_lock);
 275         tag = alloc_mcc_tag(phba);
 276         if (!tag) {
 277                 spin_unlock(&ctrl->mbox_lock);
 278                 return tag;
 279         }
 280         wrb = wrb_from_mccq(phba);
 281         wrb->tag0 |= tag;
 282         req = embedded_payload(wrb);
 283
 284         be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
 285         be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
 286                            OPCODE_ISCSI_INI_DRIVER_INVALIDATE_CONNECTION,
 287                            sizeof(*req));
 288         req->session_handle = beiscsi_ep->fw_handle;
 289         req->cid = cid;
 290         if (issue_reset)
 291                 req->cleanup_type = CMD_ISCSI_CONNECTION_ISSUE_TCP_RST;
 292         else
 293                 req->cleanup_type = CMD_ISCSI_CONNECTION_INVALIDATE;
 294         req->save_cfg = savecfg_flag;
 295         be_mcc_notify(phba);
 296         spin_unlock(&ctrl->mbox_lock);
 297         return tag;
 298 }
 299
 300 unsigned int mgmt_upload_connection(struct beiscsi_hba *phba,
 301                                 unsigned short cid, unsigned int upload_flag)
 302 {
 303         struct be_ctrl_info *ctrl = &phba->ctrl;
 304         struct be_mcc_wrb *wrb;
 305         struct tcp_upload_params_in *req;
 306         unsigned int tag = 0;
 307
 308         spin_lock(&ctrl->mbox_lock);
 309         tag = alloc_mcc_tag(phba);
 310         if (!tag) {
 311                 spin_unlock(&ctrl->mbox_lock);
 312                 return tag;
 313         }
 314         wrb = wrb_from_mccq(phba);
 315         req = embedded_payload(wrb);
 316         wrb->tag0 |= tag;
 317
 318         be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
 319         be_cmd_hdr_prepare(&req->hdr, CMD_COMMON_TCP_UPLOAD,
 320                            OPCODE_COMMON_TCP_UPLOAD, sizeof(*req));
 321         req->id = (unsigned short)cid;
 322         req->upload_type = (unsigned char)upload_flag;
 323         be_mcc_notify(phba);
 324         spin_unlock(&ctrl->mbox_lock);
 325         return tag;
 326 }
 327
 328 int mgmt_open_connection(struct beiscsi_hba *phba,
 329                          struct sockaddr *dst_addr,
 330                          struct beiscsi_endpoint *beiscsi_ep,
 331                          struct be_dma_mem *nonemb_cmd)
 332
 333 {
 334         struct hwi_controller *phwi_ctrlr;
 335         struct hwi_context_memory *phwi_context;
 336         struct sockaddr_in *daddr_in = (struct sockaddr_in *)dst_addr;
 337         struct sockaddr_in6 *daddr_in6 = (struct sockaddr_in6 *)dst_addr;
 338         struct be_ctrl_info *ctrl = &phba->ctrl;
 339         struct be_mcc_wrb *wrb;
 340         struct tcp_connect_and_offload_in *req;
 341         unsigned short def_hdr_id;
 342         unsigned short def_data_id;
 343         struct phys_addr template_address = { 0, 0 };
 344         struct phys_addr *ptemplate_address;
 345         unsigned int tag = 0;
 346         unsigned int i;
 347         unsigned short cid = beiscsi_ep->ep_cid;
 348         struct be_sge *sge;
 349
 350         phwi_ctrlr = phba->phwi_ctrlr;
 351         phwi_context = phwi_ctrlr->phwi_ctxt;
 352         def_hdr_id = (unsigned short)HWI_GET_DEF_HDRQ_ID(phba);
 353         def_data_id = (unsigned short)HWI_GET_DEF_BUFQ_ID(phba);
 354
 355         ptemplate_address = &template_address;
 356         ISCSI_GET_PDU_TEMPLATE_ADDRESS(phba, ptemplate_address);
 357         spin_lock(&ctrl->mbox_lock);
 358         tag = alloc_mcc_tag(phba);
 359         if (!tag) {
 360                 spin_unlock(&ctrl->mbox_lock);
 361                 return tag;
 362         }
 363         wrb = wrb_from_mccq(phba);
 364         memset(wrb, 0, sizeof(*wrb));
 365         sge = nonembedded_sgl(wrb);
 366
 367         req = nonemb_cmd->va;
 368         memset(req, 0, sizeof(*req));
 369         wrb->tag0 |= tag;
 370
 371         be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
 372         be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
 373                            OPCODE_COMMON_ISCSI_TCP_CONNECT_AND_OFFLOAD,
 374                            sizeof(*req));
 375         if (dst_addr->sa_family == PF_INET) {
 376                 __be32 s_addr = daddr_in->sin_addr.s_addr;
 377                 req->ip_address.ip_type = BE2_IPV4;
 378                 req->ip_address.ip_address[0] = s_addr & 0x000000ff;
 379                 req->ip_address.ip_address[1] = (s_addr & 0x0000ff00) >> 8;
 380                 req->ip_address.ip_address[2] = (s_addr & 0x00ff0000) >> 16;
 381                 req->ip_address.ip_address[3] = (s_addr & 0xff000000) >> 24;
 382                 req->tcp_port = ntohs(daddr_in->sin_port);
 383                 beiscsi_ep->dst_addr = daddr_in->sin_addr.s_addr;
 384                 beiscsi_ep->dst_tcpport = ntohs(daddr_in->sin_port);
 385                 beiscsi_ep->ip_type = BE2_IPV4;
 386         } else if (dst_addr->sa_family == PF_INET6) {
 387                 req->ip_address.ip_type = BE2_IPV6;
 388                 memcpy(&req->ip_address.ip_address,
 389                        &daddr_in6->sin6_addr.in6_u.u6_addr8, 16);
 390                 req->tcp_port = ntohs(daddr_in6->sin6_port);
 391                 beiscsi_ep->dst_tcpport = ntohs(daddr_in6->sin6_port);
 392                 memcpy(&beiscsi_ep->dst6_addr,
 393                        &daddr_in6->sin6_addr.in6_u.u6_addr8, 16);
 394                 beiscsi_ep->ip_type = BE2_IPV6;
 395         } else{
 396                 shost_printk(KERN_ERR, phba->shost, "unknown addr family %d\n",
 397                              dst_addr->sa_family);
 398                 spin_unlock(&ctrl->mbox_lock);
 399                 free_mcc_tag(&phba->ctrl, tag);
 400                 return -EINVAL;
 401
 402         }
 403         req->cid = cid;
 404         i = phba->nxt_cqid++;
 405         if (phba->nxt_cqid == phba->num_cpus)
 406                 phba->nxt_cqid = 0;
 407         req->cq_id = phwi_context->be_cq[i].id;
 408         SE_DEBUG(DBG_LVL_8, "i=%d cq_id=%d\n", i, req->cq_id);
 409         req->defq_id = def_hdr_id;
 410         req->hdr_ring_id = def_hdr_id;
 411         req->data_ring_id = def_data_id;
 412         req->do_offload = 1;
 413         req->dataout_template_pa.lo = ptemplate_address->lo;
 414         req->dataout_template_pa.hi = ptemplate_address->hi;
 415         sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
 416         sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
 417         sge->len = cpu_to_le32(nonemb_cmd->size);
 418         be_mcc_notify(phba);
 419         spin_unlock(&ctrl->mbox_lock);
 420         return tag;
 421 }
 422
 423 unsigned int be_cmd_get_mac_addr(struct beiscsi_hba *phba)
 424 {
 425         struct be_ctrl_info *ctrl = &phba->ctrl;
 426         struct be_mcc_wrb *wrb;
 427         struct be_cmd_req_get_mac_addr *req;
 428         unsigned int tag = 0;
 429
 430         SE_DEBUG(DBG_LVL_8, "In be_cmd_get_mac_addr\n");
 431         spin_lock(&ctrl->mbox_lock);
 432         tag = alloc_mcc_tag(phba);
 433         if (!tag) {
 434                 spin_unlock(&ctrl->mbox_lock);
 435                 return tag;
 436         }
 437
 438         wrb = wrb_from_mccq(phba);
 439         req = embedded_payload(wrb);
 440         wrb->tag0 |= tag;
 441         be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
 442         be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
 443                            OPCODE_COMMON_ISCSI_NTWK_GET_NIC_CONFIG,
 444                            sizeof(*req));
 445
 446         be_mcc_notify(phba);
 447         spin_unlock(&ctrl->mbox_lock);
 448         return tag;
 449 }