return 0;
}
-/* BSG support for ELS/CT pass through */
-inline srb_t *
-qla2x00_get_ctx_bsg_sp(scsi_qla_host_t *vha, fc_port_t *fcport, size_t size)
-{
- srb_t *sp;
- struct qla_hw_data *ha = vha->hw;
- struct srb_bsg_ctx *ctx;
-
- sp = mempool_alloc(ha->srb_mempool, GFP_KERNEL);
- if (!sp)
- goto done;
- ctx = kzalloc(size, GFP_KERNEL);
- if (!ctx) {
- mempool_free(sp, ha->srb_mempool);
- goto done;
- }
-
- memset(sp, 0, sizeof(*sp));
- sp->fcport = fcport;
- sp->ctx = ctx;
-done:
- return sp;
-}
-
-static int
-qla2x00_process_els(struct fc_bsg_job *bsg_job)
-{
- struct fc_rport *rport;
- fc_port_t *fcport;
- struct Scsi_Host *host;
- scsi_qla_host_t *vha;
- struct qla_hw_data *ha;
- srb_t *sp;
- const char *type;
- int req_sg_cnt, rsp_sg_cnt;
- int rval = (DRIVER_ERROR << 16);
- uint16_t nextlid = 0;
- struct srb_bsg *els;
-
- /* Multiple SG's are not supported for ELS requests */
- if (bsg_job->request_payload.sg_cnt > 1 ||
- bsg_job->reply_payload.sg_cnt > 1) {
- DEBUG2(printk(KERN_INFO
- "multiple SG's are not supported for ELS requests"
- " [request_sg_cnt: %x reply_sg_cnt: %x]\n",
- bsg_job->request_payload.sg_cnt,
- bsg_job->reply_payload.sg_cnt));
- rval = -EPERM;
- goto done;
- }
-
- /* ELS request for rport */
- if (bsg_job->request->msgcode == FC_BSG_RPT_ELS) {
- rport = bsg_job->rport;
- fcport = *(fc_port_t **) rport->dd_data;
- host = rport_to_shost(rport);
- vha = shost_priv(host);
- ha = vha->hw;
- type = "FC_BSG_RPT_ELS";
-
- DEBUG2(printk(KERN_INFO
- "scsi(%ld): loop-id=%x portid=%02x%02x%02x.\n",
- fcport->vha->host_no, fcport->loop_id,
- fcport->d_id.b.domain, fcport->d_id.b.area,
- fcport->d_id.b.al_pa));
-
- /* make sure the rport is logged in,
- * if not perform fabric login
- */
- if (qla2x00_fabric_login(vha, fcport, &nextlid)) {
- DEBUG2(qla_printk(KERN_WARNING, ha,
- "failed to login port %06X for ELS passthru\n",
- fcport->d_id.b24));
- rval = -EIO;
- goto done;
- }
- } else {
- host = bsg_job->shost;
- vha = shost_priv(host);
- ha = vha->hw;
- type = "FC_BSG_HST_ELS_NOLOGIN";
-
- DEBUG2(printk(KERN_INFO
- "scsi(%ld): loop-id=%x portid=%02x%02x%02x.\n",
- vha->host_no, vha->loop_id,
- vha->d_id.b.domain, vha->d_id.b.area, vha->d_id.b.al_pa));
-
- /* Allocate a dummy fcport structure, since functions
- * preparing the IOCB and mailbox command retrieves port
- * specific information from fcport structure. For Host based
- * ELS commands there will be no fcport structure allocated
- */
- fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
- if (!fcport) {
- rval = -ENOMEM;
- goto done;
- }
-
- /* Initialize all required fields of fcport */
- fcport->vha = vha;
- fcport->vp_idx = vha->vp_idx;
- fcport->d_id.b.al_pa =
- bsg_job->request->rqst_data.h_els.port_id[0];
- fcport->d_id.b.area =
- bsg_job->request->rqst_data.h_els.port_id[1];
- fcport->d_id.b.domain =
- bsg_job->request->rqst_data.h_els.port_id[2];
- fcport->loop_id =
- (fcport->d_id.b.al_pa == 0xFD) ?
- NPH_FABRIC_CONTROLLER : NPH_F_PORT;
- }
-
- DEBUG2(printk(KERN_INFO
- "scsi(%ld): vendor-id = %llu\n",
- vha->host_no, host->hostt->vendor_id));
-
- req_sg_cnt =
- dma_map_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
- bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
- if (!req_sg_cnt) {
- rval = -ENOMEM;
- goto done_free_fcport;
- }
- rsp_sg_cnt = dma_map_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
- bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
- if (!rsp_sg_cnt) {
- rval = -ENOMEM;
- goto done_free_fcport;
- }
-
- if ((req_sg_cnt != bsg_job->request_payload.sg_cnt) ||
- (rsp_sg_cnt != bsg_job->reply_payload.sg_cnt))
- {
- DEBUG2(printk(KERN_INFO
- "dma mapping resulted in different sg counts \
- [request_sg_cnt: %x dma_request_sg_cnt: %x\
- reply_sg_cnt: %x dma_reply_sg_cnt: %x]\n",
- bsg_job->request_payload.sg_cnt, req_sg_cnt,
- bsg_job->reply_payload.sg_cnt, rsp_sg_cnt));
- rval = -EAGAIN;
- goto done_unmap_sg;
- }
-
- /* Alloc SRB structure */
- sp = qla2x00_get_ctx_bsg_sp(vha, fcport, sizeof(struct srb_bsg));
- if (!sp) {
- rval = -ENOMEM;
- goto done_unmap_sg;
- }
-
- els = sp->ctx;
- els->ctx.type =
- (bsg_job->request->msgcode == FC_BSG_RPT_ELS ?
- SRB_ELS_CMD_RPT : SRB_ELS_CMD_HST);
- els->bsg_job = bsg_job;
-
- DEBUG2(qla_printk(KERN_INFO, ha,
- "scsi(%ld:%x): bsg rqst type: %s els type: %x - loop-id=%x "
- "portid=%02x%02x%02x.\n", vha->host_no, sp->handle, type,
- bsg_job->request->rqst_data.h_els.command_code,
- fcport->loop_id, fcport->d_id.b.domain, fcport->d_id.b.area,
- fcport->d_id.b.al_pa));
-
- rval = qla2x00_start_sp(sp);
- if (rval != QLA_SUCCESS) {
- kfree(sp->ctx);
- mempool_free(sp, ha->srb_mempool);
- rval = -EIO;
- goto done_unmap_sg;
- }
- return rval;
-
-done_unmap_sg:
- dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
- bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
- dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
- bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
- goto done_free_fcport;
-
-done_free_fcport:
- if (bsg_job->request->msgcode == FC_BSG_HST_ELS_NOLOGIN)
- kfree(fcport);
-done:
- return rval;
-}
-
-static int
-qla2x00_process_ct(struct fc_bsg_job *bsg_job)
-{
- srb_t *sp;
- struct Scsi_Host *host = bsg_job->shost;
- scsi_qla_host_t *vha = shost_priv(host);
- struct qla_hw_data *ha = vha->hw;
- int rval = (DRIVER_ERROR << 16);
- int req_sg_cnt, rsp_sg_cnt;
- uint16_t loop_id;
- struct fc_port *fcport;
- char *type = "FC_BSG_HST_CT";
- struct srb_bsg *ct;
-
- /* pass through is supported only for ISP 4Gb or higher */
- if (!IS_FWI2_CAPABLE(ha)) {
- DEBUG2(qla_printk(KERN_INFO, ha,
- "scsi(%ld):Firmware is not capable to support FC "
- "CT pass thru\n", vha->host_no));
- rval = -EPERM;
- goto done;
- }
-
- req_sg_cnt =
- dma_map_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
- bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
- if (!req_sg_cnt) {
- rval = -ENOMEM;
- goto done;
- }
-
- rsp_sg_cnt = dma_map_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
- bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
- if (!rsp_sg_cnt) {
- rval = -ENOMEM;
- goto done;
- }
-
- if ((req_sg_cnt != bsg_job->request_payload.sg_cnt) ||
- (rsp_sg_cnt != bsg_job->reply_payload.sg_cnt))
- {
- DEBUG2(qla_printk(KERN_WARNING, ha,
- "dma mapping resulted in different sg counts \
- [request_sg_cnt: %x dma_request_sg_cnt: %x\
- reply_sg_cnt: %x dma_reply_sg_cnt: %x]\n",
- bsg_job->request_payload.sg_cnt, req_sg_cnt,
- bsg_job->reply_payload.sg_cnt, rsp_sg_cnt));
- rval = -EAGAIN;
- goto done_unmap_sg;
- }
-
- loop_id =
- (bsg_job->request->rqst_data.h_ct.preamble_word1 & 0xFF000000)
- >> 24;
- switch (loop_id) {
- case 0xFC:
- loop_id = cpu_to_le16(NPH_SNS);
- break;
- case 0xFA:
- loop_id = vha->mgmt_svr_loop_id;
- break;
- default:
- DEBUG2(qla_printk(KERN_INFO, ha,
- "Unknown loop id: %x\n", loop_id));
- rval = -EINVAL;
- goto done_unmap_sg;
- }
-
- /* Allocate a dummy fcport structure, since functions preparing the
- * IOCB and mailbox command retrieves port specific information
- * from fcport structure. For Host based ELS commands there will be
- * no fcport structure allocated
- */
- fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
- if (!fcport)
- {
- rval = -ENOMEM;
- goto done_unmap_sg;
- }
-
- /* Initialize all required fields of fcport */
- fcport->vha = vha;
- fcport->vp_idx = vha->vp_idx;
- fcport->d_id.b.al_pa = bsg_job->request->rqst_data.h_ct.port_id[0];
- fcport->d_id.b.area = bsg_job->request->rqst_data.h_ct.port_id[1];
- fcport->d_id.b.domain = bsg_job->request->rqst_data.h_ct.port_id[2];
- fcport->loop_id = loop_id;
-
- /* Alloc SRB structure */
- sp = qla2x00_get_ctx_bsg_sp(vha, fcport, sizeof(struct srb_bsg));
- if (!sp) {
- rval = -ENOMEM;
- goto done_free_fcport;
- }
-
- ct = sp->ctx;
- ct->ctx.type = SRB_CT_CMD;
- ct->bsg_job = bsg_job;
-
- DEBUG2(qla_printk(KERN_INFO, ha,
- "scsi(%ld:%x): bsg rqst type: %s els type: %x - loop-id=%x "
- "portid=%02x%02x%02x.\n", vha->host_no, sp->handle, type,
- (bsg_job->request->rqst_data.h_ct.preamble_word2 >> 16),
- fcport->loop_id, fcport->d_id.b.domain, fcport->d_id.b.area,
- fcport->d_id.b.al_pa));
-
- rval = qla2x00_start_sp(sp);
- if (rval != QLA_SUCCESS) {
- kfree(sp->ctx);
- mempool_free(sp, ha->srb_mempool);
- rval = -EIO;
- goto done_free_fcport;
- }
- return rval;
-
-done_free_fcport:
- kfree(fcport);
-done_unmap_sg:
- dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
- bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
- dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
- bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
-done:
- return rval;
-}
-
-static int
-qla2x00_process_vendor_specific(struct fc_bsg_job *bsg_job)
-{
- struct Scsi_Host *host = bsg_job->shost;
- scsi_qla_host_t *vha = shost_priv(host);
- struct qla_hw_data *ha = vha->hw;
- int rval;
- uint8_t command_sent = 0;
- uint32_t vendor_cmd;
- char *type = NULL;
- struct msg_echo_lb elreq;
- uint16_t response[MAILBOX_REGISTER_COUNT];
- uint8_t* fw_sts_ptr;
- uint8_t *req_data = NULL;
- dma_addr_t req_data_dma;
- uint32_t req_data_len = 0;
- uint8_t *rsp_data;
- dma_addr_t rsp_data_dma;
- uint32_t rsp_data_len;
-
- if (test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
- test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) ||
- test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
- rval = -EBUSY;
- goto done;
- }
-
- elreq.req_sg_cnt =
- dma_map_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
- bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
- if (!elreq.req_sg_cnt) {
- rval = -ENOMEM;
- goto done;
- }
- elreq.rsp_sg_cnt =
- dma_map_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
- bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
- if (!elreq.rsp_sg_cnt) {
- rval = -ENOMEM;
- goto done;
- }
-
- if ((elreq.req_sg_cnt != bsg_job->request_payload.sg_cnt) ||
- (elreq.rsp_sg_cnt != bsg_job->reply_payload.sg_cnt))
- {
- DEBUG2(printk(KERN_INFO
- "dma mapping resulted in different sg counts \
- [request_sg_cnt: %x dma_request_sg_cnt: %x\
- reply_sg_cnt: %x dma_reply_sg_cnt: %x]\n",
- bsg_job->request_payload.sg_cnt, elreq.req_sg_cnt,
- bsg_job->reply_payload.sg_cnt, elreq.rsp_sg_cnt));
- rval = -EAGAIN;
- goto done_unmap_sg;
- }
- req_data_len = rsp_data_len = bsg_job->request_payload.payload_len;
- req_data = dma_alloc_coherent(&ha->pdev->dev, req_data_len,
- &req_data_dma, GFP_KERNEL);
-
- rsp_data = dma_alloc_coherent(&ha->pdev->dev, rsp_data_len,
- &rsp_data_dma, GFP_KERNEL);
-
- /* Copy the request buffer in req_data now */
- sg_copy_to_buffer(bsg_job->request_payload.sg_list,
- bsg_job->request_payload.sg_cnt, req_data,
- req_data_len);
-
- elreq.send_dma = req_data_dma;
- elreq.rcv_dma = rsp_data_dma;
- elreq.transfer_size = req_data_len;
-
- /* Vendor cmd : loopback or ECHO diagnostic
- * Options:
- * Loopback : Either internal or external loopback
- * ECHO: ECHO ELS or Vendor specific FC4 link data
- */
- vendor_cmd = bsg_job->request->rqst_data.h_vendor.vendor_cmd[0];
- elreq.options =
- *(((uint32_t *)bsg_job->request->rqst_data.h_vendor.vendor_cmd)
- + 1);
-
- switch (bsg_job->request->rqst_data.h_vendor.vendor_cmd[0]) {
- case QL_VND_LOOPBACK:
- if (ha->current_topology != ISP_CFG_F) {
- type = "FC_BSG_HST_VENDOR_LOOPBACK";
-
- if ((IS_QLA81XX(ha)) &&
- ((elreq.options == 0) || (elreq.options == 2))) {
- DEBUG2(qla_printk(KERN_INFO, ha, "scsi(%ld)"
- "loopback option:0x%x not supported\n",
- vha->host_no, elreq.options));
- rval = -EINVAL;
- goto done_unmap_sg;
- }
-
- DEBUG2(qla_printk(KERN_INFO, ha,
- "scsi(%ld) bsg rqst type: %s vendor rqst type: "
- "%x options: %x.\n", vha->host_no, type,
- vendor_cmd, elreq.options));
- DEBUG2(qla_printk(KERN_INFO, ha,
- "scsi(%ld) tx_addr: 0x%llx rx_addr: 0x%llx "
- "tx_sg_cnt: %x rx_sg_cnt: %x\n", vha->host_no,
- elreq.send_dma, elreq.rcv_dma, elreq.req_sg_cnt,
- elreq.rsp_sg_cnt));
- command_sent = INT_DEF_LB_LOOPBACK_CMD;
- rval = qla2x00_loopback_test(vha, &elreq, response);
- if (IS_QLA81XX(ha)) {
- if (response[0] == MBS_COMMAND_ERROR &&
- response[1] == MBS_LB_RESET) {
- DEBUG2(printk(KERN_ERR
- "%s(%ld): ABORTing ISP\n",
- __func__, vha->host_no));
- set_bit(ISP_ABORT_NEEDED,
- &vha->dpc_flags);
- qla2xxx_wake_dpc(vha);
- }
- }
- } else {
- type = "FC_BSG_HST_VENDOR_ECHO_DIAG";
- DEBUG2(qla_printk(KERN_INFO, ha,
- "scsi(%ld) bsg rqst type: %s vendor rqst type: "
- "%x options: %x.\n", vha->host_no, type,
- vendor_cmd, elreq.options));
- DEBUG2(qla_printk(KERN_INFO, ha,
- "scsi(%ld) tx_addr: 0x%llx rx_addr: 0x%llx "
- "tx_sg_cnt: %x rx_sg_cnt: %x\n", vha->host_no,
- elreq.send_dma, elreq.rcv_dma, elreq.req_sg_cnt,
- elreq.rsp_sg_cnt));
- command_sent = INT_DEF_LB_ECHO_CMD;
- rval = qla2x00_echo_test(vha, &elreq, response);
- }
- break;
- default:
- rval = -ENOSYS;
- }
-
- if (rval != QLA_SUCCESS) {
- DEBUG2(qla_printk(KERN_WARNING, ha,
- "scsi(%ld) Vendor request %s failed\n",
- vha->host_no, type));
- rval = 0;
- bsg_job->reply->result = (DID_ERROR << 16);
- fw_sts_ptr = ((uint8_t *)bsg_job->req->sense) +
- sizeof(struct fc_bsg_reply);
- memcpy(fw_sts_ptr, response, sizeof(response));
- fw_sts_ptr += sizeof(response);
- *fw_sts_ptr = command_sent;
- } else {
- DEBUG2(qla_printk(KERN_WARNING, ha,
- "scsi(%ld) Vendor request %s completed\n",
- vha->host_no, type));
- rval = bsg_job->reply->result = 0;
- bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
- sizeof(response) + sizeof(uint8_t);
- bsg_job->reply->reply_payload_rcv_len =
- bsg_job->reply_payload.payload_len;
- fw_sts_ptr = ((uint8_t *)bsg_job->req->sense) +
- sizeof(struct fc_bsg_reply);
- memcpy(fw_sts_ptr, response, sizeof(response));
- fw_sts_ptr += sizeof(response);
- *fw_sts_ptr = command_sent;
- sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
- bsg_job->reply_payload.sg_cnt, rsp_data,
- rsp_data_len);
- }
- bsg_job->job_done(bsg_job);
-
-done_unmap_sg:
-
- if (req_data)
- dma_free_coherent(&ha->pdev->dev, req_data_len,
- req_data, req_data_dma);
- dma_unmap_sg(&ha->pdev->dev,
- bsg_job->request_payload.sg_list,
- bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
- dma_unmap_sg(&ha->pdev->dev,
- bsg_job->reply_payload.sg_list,
- bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
-
-done:
- return rval;
-}
-
-static int
-qla24xx_bsg_request(struct fc_bsg_job *bsg_job)
-{
- int ret = -EINVAL;
-
- switch (bsg_job->request->msgcode) {
- case FC_BSG_RPT_ELS:
- case FC_BSG_HST_ELS_NOLOGIN:
- ret = qla2x00_process_els(bsg_job);
- break;
- case FC_BSG_HST_CT:
- ret = qla2x00_process_ct(bsg_job);
- break;
- case FC_BSG_HST_VENDOR:
- ret = qla2x00_process_vendor_specific(bsg_job);
- break;
- case FC_BSG_HST_ADD_RPORT:
- case FC_BSG_HST_DEL_RPORT:
- case FC_BSG_RPT_CT:
- default:
- DEBUG2(printk("qla2xxx: unsupported BSG request\n"));
- break;
- }
- return ret;
-}
-
-static int
-qla24xx_bsg_timeout(struct fc_bsg_job *bsg_job)
-{
- scsi_qla_host_t *vha = shost_priv(bsg_job->shost);
- struct qla_hw_data *ha = vha->hw;
- srb_t *sp;
- int i;
- unsigned long flags;
- uint16_t que_id;
- struct req_que *req;
- struct rsp_que *rsp;
- int found = 0;
- struct srb_bsg *sp_bsg;
-
- /* find the bsg job from the active list of commands */
- spin_lock_irqsave(&ha->hardware_lock, flags);
- req = ha->req_q_map[0];
- que_id = req->id;
- if (req->rsp)
- rsp = req->rsp;
- else
- rsp = ha->rsp_q_map[que_id];
-
- for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++ ) {
- sp = req->outstanding_cmds[i];
-
- if (sp == NULL)
- continue;
-
- sp_bsg = (struct srb_bsg*)sp->ctx;
-
- if (((sp_bsg->ctx.type == SRB_CT_CMD) ||
- (sp_bsg->ctx.type == SRB_ELS_CMD_RPT)
- || ( sp_bsg->ctx.type == SRB_ELS_CMD_HST)) &&
- (sp_bsg->bsg_job == bsg_job)) {
- DEBUG2(qla_printk(KERN_INFO, ha,
- "scsi(%ld) req_q: %p rsp_q: %p que_id: %x sp: %p\n",
- vha->host_no, req, rsp, que_id, sp));
- found = 1;
- break;
- }
- }
- spin_unlock_irqrestore(&ha->hardware_lock, flags);
- if (!found) {
- DEBUG2(qla_printk(KERN_INFO, ha,
- "scsi(%ld) SRB not found to abort\n", vha->host_no));
- bsg_job->req->errors = bsg_job->reply->result = -ENXIO;
- return 0;
- }
-
- if (ha->isp_ops->abort_command(sp)) {
- DEBUG2(qla_printk(KERN_INFO, ha,
- "scsi(%ld): mbx abort_command failed\n", vha->host_no));
- bsg_job->req->errors = bsg_job->reply->result = -EIO;
- } else {
- DEBUG2(qla_printk(KERN_INFO, ha,
- "scsi(%ld): mbx abort_command success\n", vha->host_no));
- bsg_job->req->errors = bsg_job->reply->result = 0;
- }
-
- if (bsg_job->request->msgcode == FC_BSG_HST_CT)
- kfree(sp->fcport);
- kfree(sp->ctx);
- mempool_free(sp, ha->srb_mempool);
- return 0;
-}
-
struct fc_function_template qla2xxx_transport_functions = {
.show_host_node_name = 1,
.vport_create = qla24xx_vport_create,
.vport_disable = qla24xx_vport_disable,
.vport_delete = qla24xx_vport_delete,
- .bsg_request = qla24xx_bsg_request,
- .bsg_timeout = qla24xx_bsg_timeout,
};
struct fc_function_template qla2xxx_transport_vport_functions = {
.dev_loss_tmo_callbk = qla2x00_dev_loss_tmo_callbk,
.terminate_rport_io = qla2x00_terminate_rport_io,
.get_fc_host_stats = qla2x00_get_fc_host_stats,
- .bsg_request = qla24xx_bsg_request,
- .bsg_timeout = qla24xx_bsg_timeout,
};
void
projects / linux-flexiantxendom0-3.2.10.git / blobdiff