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