qla2xxx: Added interface to send explicit LOGO.
[linux-2.6-microblaze.git] / drivers / scsi / qla2xxx / qla_iocb.c
index c49df34..b41265a 100644 (file)
@@ -1868,6 +1868,7 @@ skip_cmd_array:
        }
 
 queuing_error:
+       vha->tgt_counters.num_alloc_iocb_failed++;
        return pkt;
 }
 
@@ -2009,6 +2010,190 @@ qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk)
        }
 }
 
+static void
+qla2x00_els_dcmd_sp_free(void *ptr, void *data)
+{
+       struct scsi_qla_host *vha = (scsi_qla_host_t *)ptr;
+       struct qla_hw_data *ha = vha->hw;
+       srb_t *sp = (srb_t *)data;
+       struct srb_iocb *elsio = &sp->u.iocb_cmd;
+
+       kfree(sp->fcport);
+
+       if (elsio->u.els_logo.els_logo_pyld)
+               dma_free_coherent(&ha->pdev->dev, DMA_POOL_SIZE,
+                   elsio->u.els_logo.els_logo_pyld,
+                   elsio->u.els_logo.els_logo_pyld_dma);
+
+       del_timer(&elsio->timer);
+       qla2x00_rel_sp(vha, sp);
+}
+
+static void
+qla2x00_els_dcmd_iocb_timeout(void *data)
+{
+       srb_t *sp = (srb_t *)data;
+       struct srb_iocb *lio = &sp->u.iocb_cmd;
+       fc_port_t *fcport = sp->fcport;
+       struct scsi_qla_host *vha = fcport->vha;
+       struct qla_hw_data *ha = vha->hw;
+       unsigned long flags = 0;
+
+       ql_dbg(ql_dbg_io, vha, 0x3069,
+           "%s Timeout, hdl=%x, portid=%02x%02x%02x\n",
+           sp->name, sp->handle, fcport->d_id.b.domain, fcport->d_id.b.area,
+           fcport->d_id.b.al_pa);
+
+       /* Abort the exchange */
+       spin_lock_irqsave(&ha->hardware_lock, flags);
+       if (ha->isp_ops->abort_command(sp)) {
+               ql_dbg(ql_dbg_io, vha, 0x3070,
+                   "mbx abort_command failed.\n");
+       } else {
+               ql_dbg(ql_dbg_io, vha, 0x3071,
+                   "mbx abort_command success.\n");
+       }
+       spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+       complete(&lio->u.els_logo.comp);
+}
+
+static void
+qla2x00_els_dcmd_sp_done(void *data, void *ptr, int res)
+{
+       srb_t *sp = (srb_t *)ptr;
+       fc_port_t *fcport = sp->fcport;
+       struct srb_iocb *lio = &sp->u.iocb_cmd;
+       struct scsi_qla_host *vha = fcport->vha;
+
+       ql_dbg(ql_dbg_io, vha, 0x3072,
+           "%s hdl=%x, portid=%02x%02x%02x done\n",
+           sp->name, sp->handle, fcport->d_id.b.domain,
+           fcport->d_id.b.area, fcport->d_id.b.al_pa);
+
+       complete(&lio->u.els_logo.comp);
+}
+
+int
+qla24xx_els_dcmd_iocb(scsi_qla_host_t *vha, int els_opcode,
+    port_id_t remote_did)
+{
+       srb_t *sp;
+       fc_port_t *fcport = NULL;
+       struct srb_iocb *elsio = NULL;
+       struct qla_hw_data *ha = vha->hw;
+       struct els_logo_payload logo_pyld;
+       int rval = QLA_SUCCESS;
+
+       fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
+       if (!fcport) {
+              ql_log(ql_log_info, vha, 0x70e5, "fcport allocation failed\n");
+              return -ENOMEM;
+       }
+
+       /* Alloc SRB structure */
+       sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
+       if (!sp) {
+               kfree(fcport);
+               ql_log(ql_log_info, vha, 0x70e6,
+                "SRB allocation failed\n");
+               return -ENOMEM;
+       }
+
+       elsio = &sp->u.iocb_cmd;
+       fcport->loop_id = 0xFFFF;
+       fcport->d_id.b.domain = remote_did.b.domain;
+       fcport->d_id.b.area = remote_did.b.area;
+       fcport->d_id.b.al_pa = remote_did.b.al_pa;
+
+       ql_dbg(ql_dbg_io, vha, 0x3073, "portid=%02x%02x%02x done\n",
+           fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa);
+
+       sp->type = SRB_ELS_DCMD;
+       sp->name = "ELS_DCMD";
+       sp->fcport = fcport;
+       qla2x00_init_timer(sp, ELS_DCMD_TIMEOUT);
+       elsio->timeout = qla2x00_els_dcmd_iocb_timeout;
+       sp->done = qla2x00_els_dcmd_sp_done;
+       sp->free = qla2x00_els_dcmd_sp_free;
+
+       elsio->u.els_logo.els_logo_pyld = dma_alloc_coherent(&ha->pdev->dev,
+                           DMA_POOL_SIZE, &elsio->u.els_logo.els_logo_pyld_dma,
+                           GFP_KERNEL);
+
+       if (!elsio->u.els_logo.els_logo_pyld) {
+               sp->free(vha, sp);
+               return QLA_FUNCTION_FAILED;
+       }
+
+       memset(&logo_pyld, 0, sizeof(struct els_logo_payload));
+
+       elsio->u.els_logo.els_cmd = els_opcode;
+       logo_pyld.opcode = els_opcode;
+       logo_pyld.s_id[0] = vha->d_id.b.al_pa;
+       logo_pyld.s_id[1] = vha->d_id.b.area;
+       logo_pyld.s_id[2] = vha->d_id.b.domain;
+       host_to_fcp_swap(logo_pyld.s_id, sizeof(uint32_t));
+       memcpy(&logo_pyld.wwpn, vha->port_name, WWN_SIZE);
+
+       memcpy(elsio->u.els_logo.els_logo_pyld, &logo_pyld,
+           sizeof(struct els_logo_payload));
+
+       rval = qla2x00_start_sp(sp);
+       if (rval != QLA_SUCCESS) {
+               sp->free(vha, sp);
+               return QLA_FUNCTION_FAILED;
+       }
+
+       ql_dbg(ql_dbg_io, vha, 0x3074,
+           "%s LOGO sent, hdl=%x, loopid=%x, portid=%02x%02x%02x.\n",
+           sp->name, sp->handle, fcport->loop_id, fcport->d_id.b.domain,
+           fcport->d_id.b.area, fcport->d_id.b.al_pa);
+
+       wait_for_completion(&elsio->u.els_logo.comp);
+
+       sp->free(vha, sp);
+       return rval;
+}
+
+static void
+qla24xx_els_logo_iocb(srb_t *sp, struct els_entry_24xx *els_iocb)
+{
+       scsi_qla_host_t *vha = sp->fcport->vha;
+       struct srb_iocb *elsio = &sp->u.iocb_cmd;
+
+       els_iocb->entry_type = ELS_IOCB_TYPE;
+       els_iocb->entry_count = 1;
+       els_iocb->sys_define = 0;
+       els_iocb->entry_status = 0;
+       els_iocb->handle = sp->handle;
+       els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
+       els_iocb->tx_dsd_count = 1;
+       els_iocb->vp_index = vha->vp_idx;
+       els_iocb->sof_type = EST_SOFI3;
+       els_iocb->rx_dsd_count = 0;
+       els_iocb->opcode = elsio->u.els_logo.els_cmd;
+
+       els_iocb->port_id[0] = sp->fcport->d_id.b.al_pa;
+       els_iocb->port_id[1] = sp->fcport->d_id.b.area;
+       els_iocb->port_id[2] = sp->fcport->d_id.b.domain;
+       els_iocb->control_flags = 0;
+
+       els_iocb->tx_byte_count = sizeof(struct els_logo_payload);
+       els_iocb->tx_address[0] =
+           cpu_to_le32(LSD(elsio->u.els_logo.els_logo_pyld_dma));
+       els_iocb->tx_address[1] =
+           cpu_to_le32(MSD(elsio->u.els_logo.els_logo_pyld_dma));
+       els_iocb->tx_len = cpu_to_le32(sizeof(struct els_logo_payload));
+
+       els_iocb->rx_byte_count = 0;
+       els_iocb->rx_address[0] = 0;
+       els_iocb->rx_address[1] = 0;
+       els_iocb->rx_len = 0;
+
+       sp->fcport->vha->qla_stats.control_requests++;
+}
+
 static void
 qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb)
 {
@@ -2623,6 +2808,9 @@ qla2x00_start_sp(srb_t *sp)
                        qlafx00_abort_iocb(sp, pkt) :
                        qla24xx_abort_iocb(sp, pkt);
                break;
+       case SRB_ELS_DCMD:
+               qla24xx_els_logo_iocb(sp, pkt);
+               break;
        default:
                break;
        }