diff options
36 files changed, 39 insertions, 211 deletions
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 0d7f0da3a269..ade388648fe7 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -3689,9 +3689,6 @@ int ata_scsi_add_hosts(struct ata_host *host, struct scsi_host_template *sht) */ shost->max_host_blocked = 1; - if (scsi_init_shared_tag_map(shost, host->n_tags)) - goto err_add; - rc = scsi_add_host_with_dma(ap->scsi_host, &ap->tdev, ap->host->dev); if (rc) diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index b481490ad257..96014dc4b6dd 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -2750,7 +2750,6 @@ static struct scsi_host_template srp_template = { .cmd_per_lun = SRP_DEFAULT_CMD_SQ_SIZE, .use_clustering = ENABLE_CLUSTERING, .shost_attrs = srp_host_attrs, - .use_blk_tags = 1, .track_queue_depth = 1, }; @@ -3181,10 +3180,6 @@ static ssize_t srp_create_target(struct device *dev, if (ret) goto out; - ret = scsi_init_shared_tag_map(target_host, target_host->can_queue); - if (ret) - goto out; - target->req_ring_size = target->queue_size - SRP_TSK_MGMT_SQ_SIZE; if (!srp_conn_unique(target->srp_host, target)) { diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c index 005a88b9f440..7ebccfa8072a 100644 --- a/drivers/message/fusion/mptsas.c +++ b/drivers/message/fusion/mptsas.c @@ -1994,7 +1994,6 @@ static struct scsi_host_template mptsas_driver_template = { .cmd_per_lun = 7, .use_clustering = ENABLE_CLUSTERING, .shost_attrs = mptscsih_host_attrs, - .use_blk_tags = 1, }; static int mptsas_get_linkerrors(struct sas_phy *phy) diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c index a209c3418898..d4c285688ce9 100644 --- a/drivers/scsi/53c700.c +++ b/drivers/scsi/53c700.c @@ -325,7 +325,6 @@ NCR_700_detect(struct scsi_host_template *tpnt, tpnt->slave_destroy = NCR_700_slave_destroy; tpnt->slave_alloc = NCR_700_slave_alloc; tpnt->change_queue_depth = NCR_700_change_queue_depth; - tpnt->use_blk_tags = 1; if(tpnt->name == NULL) tpnt->name = "53c700"; @@ -1107,7 +1106,9 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp, BUG(); } if(hostdata->msgin[1] == A_SIMPLE_TAG_MSG) { - struct scsi_cmnd *SCp = scsi_find_tag(SDp, hostdata->msgin[2]); + struct scsi_cmnd *SCp; + + SCp = scsi_host_find_tag(SDp->host, hostdata->msgin[2]); if(unlikely(SCp == NULL)) { printk(KERN_ERR "scsi%d: (%d:%d) no saved request for tag %d\n", host->host_no, reselection_id, lun, hostdata->msgin[2]); @@ -1119,7 +1120,9 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp, "reselection is tag %d, slot %p(%d)\n", hostdata->msgin[2], slot, slot->tag); } else { - struct scsi_cmnd *SCp = scsi_find_tag(SDp, SCSI_NO_TAG); + struct scsi_cmnd *SCp; + + SCp = scsi_host_find_tag(SDp->host, SCSI_NO_TAG); if(unlikely(SCp == NULL)) { sdev_printk(KERN_ERR, SDp, "no saved request for untagged cmd\n"); @@ -1823,7 +1826,7 @@ NCR_700_queuecommand_lck(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *) slot->tag, slot); } else { slot->tag = SCSI_NO_TAG; - /* must populate current_cmnd for scsi_find_tag to work */ + /* must populate current_cmnd for scsi_host_find_tag to work */ SCp->device->current_cmnd = SCp; } /* sanity check: some of the commands generated by the mid-layer diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 4305178e4e01..519f9a4b3dad 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -10819,7 +10819,6 @@ static struct scsi_host_template advansys_template = { * by enabling clustering, I/O throughput increases as well. */ .use_clustering = ENABLE_CLUSTERING, - .use_blk_tags = 1, }; static int advansys_wide_init_chip(struct Scsi_Host *shost) @@ -11211,11 +11210,6 @@ static int advansys_board_found(struct Scsi_Host *shost, unsigned int iop, /* Set maximum number of queues the adapter can handle. */ shost->can_queue = adv_dvc_varp->max_host_qng; } - ret = scsi_init_shared_tag_map(shost, shost->can_queue); - if (ret) { - shost_printk(KERN_ERR, shost, "init tag map failed\n"); - goto err_free_dma; - } /* * Set the maximum number of scatter-gather elements the diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c index ce96a0be3282..2588b8f84ba0 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm.c +++ b/drivers/scsi/aic7xxx/aic79xx_osm.c @@ -925,7 +925,6 @@ struct scsi_host_template aic79xx_driver_template = { .slave_configure = ahd_linux_slave_configure, .target_alloc = ahd_linux_target_alloc, .target_destroy = ahd_linux_target_destroy, - .use_blk_tags = 1, }; /******************************** Bus DMA *************************************/ diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c index a2f2c774cd6b..b846a4683562 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -812,7 +812,6 @@ struct scsi_host_template aic7xxx_driver_template = { .slave_configure = ahc_linux_slave_configure, .target_alloc = ahc_linux_target_alloc, .target_destroy = ahc_linux_target_destroy, - .use_blk_tags = 1, }; /**************************** Tasklet Handler *********************************/ diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c index f6c336b05d5b..cd094bf82a77 100644 --- a/drivers/scsi/aic94xx/aic94xx_init.c +++ b/drivers/scsi/aic94xx/aic94xx_init.c @@ -73,7 +73,6 @@ static struct scsi_host_template aic94xx_sht = { .eh_bus_reset_handler = sas_eh_bus_reset_handler, .target_destroy = sas_target_destroy, .ioctl = sas_ioctl, - .use_blk_tags = 1, .track_queue_depth = 1, }; diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c index 8367c11d554b..299c6f80d460 100644 --- a/drivers/scsi/bfa/bfad_im.c +++ b/drivers/scsi/bfa/bfad_im.c @@ -800,7 +800,6 @@ struct scsi_host_template bfad_im_scsi_host_template = { .shost_attrs = bfad_im_host_attrs, .max_sectors = BFAD_MAX_SECTORS, .vendor_id = BFA_PCI_VENDOR_ID_BROCADE, - .use_blk_tags = 1, }; struct scsi_host_template bfad_im_vport_template = { @@ -822,7 +821,6 @@ struct scsi_host_template bfad_im_vport_template = { .use_clustering = ENABLE_CLUSTERING, .shost_attrs = bfad_im_vport_attrs, .max_sectors = BFAD_MAX_SECTORS, - .use_blk_tags = 1, }; bfa_status_t diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index 29a1c03b558e..0857d80f2999 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -2867,7 +2867,6 @@ static struct scsi_host_template bnx2fc_shost_template = { .use_clustering = ENABLE_CLUSTERING, .sg_tablesize = BNX2FC_MAX_BDS_PER_CMD, .max_sectors = 1024, - .use_blk_tags = 1, .track_queue_depth = 1, }; diff --git a/drivers/scsi/csiostor/csio_scsi.c b/drivers/scsi/csiostor/csio_scsi.c index 2c4562d82dc0..c2a6f9f29427 100644 --- a/drivers/scsi/csiostor/csio_scsi.c +++ b/drivers/scsi/csiostor/csio_scsi.c @@ -2283,7 +2283,6 @@ struct scsi_host_template csio_fcoe_shost_template = { .use_clustering = ENABLE_CLUSTERING, .shost_attrs = csio_fcoe_lport_attrs, .max_sectors = CSIO_MAX_SECTOR_SIZE, - .use_blk_tags = 1, }; struct scsi_host_template csio_fcoe_shost_vport_template = { @@ -2303,7 +2302,6 @@ struct scsi_host_template csio_fcoe_shost_vport_template = { .use_clustering = ENABLE_CLUSTERING, .shost_attrs = csio_fcoe_vport_attrs, .max_sectors = CSIO_MAX_SECTOR_SIZE, - .use_blk_tags = 1, }; /* diff --git a/drivers/scsi/esas2r/esas2r_main.c b/drivers/scsi/esas2r/esas2r_main.c index 31f8966b2e03..33581ba4386e 100644 --- a/drivers/scsi/esas2r/esas2r_main.c +++ b/drivers/scsi/esas2r/esas2r_main.c @@ -256,7 +256,6 @@ static struct scsi_host_template driver_template = { .proc_name = ESAS2R_DRVR_NAME, .change_queue_depth = scsi_change_queue_depth, .max_sectors = 0xFFFF, - .use_blk_tags = 1, }; int sgl_page_size = 512; diff --git a/drivers/scsi/esp_scsi.c b/drivers/scsi/esp_scsi.c index 065b25df741b..71cb05b1c3eb 100644 --- a/drivers/scsi/esp_scsi.c +++ b/drivers/scsi/esp_scsi.c @@ -2694,7 +2694,6 @@ struct scsi_host_template scsi_esp_template = { .use_clustering = ENABLE_CLUSTERING, .max_sectors = 0xffff, .skip_settle_delay = 1, - .use_blk_tags = 1, }; EXPORT_SYMBOL(scsi_esp_template); diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c index d187ba9b361d..f4424063b860 100644 --- a/drivers/scsi/fcoe/fcoe.c +++ b/drivers/scsi/fcoe/fcoe.c @@ -287,7 +287,6 @@ static struct scsi_host_template fcoe_shost_template = { .use_clustering = ENABLE_CLUSTERING, .sg_tablesize = SG_ALL, .max_sectors = 0xffff, - .use_blk_tags = 1, .track_queue_depth = 1, }; diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c index 8a0d4d7b3254..58ce9020d69c 100644 --- a/drivers/scsi/fnic/fnic_main.c +++ b/drivers/scsi/fnic/fnic_main.c @@ -118,7 +118,6 @@ static struct scsi_host_template fnic_host_template = { .sg_tablesize = FNIC_MAX_SG_DESC_CNT, .max_sectors = 0xffff, .shost_attrs = fnic_attrs, - .use_blk_tags = 1, .track_queue_depth = 1, }; @@ -697,13 +696,6 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) } fnic->fnic_max_tag_id = host->can_queue; - err = scsi_init_shared_tag_map(host, fnic->fnic_max_tag_id); - if (err) { - shost_printk(KERN_ERR, fnic->lport->host, - "Unable to alloc shared tag map\n"); - goto err_out_dev_close; - } - host->max_lun = fnic->config.luns_per_tgt; host->max_id = FNIC_MAX_FCP_TARGET; host->max_cmd_len = FCOE_MAX_CMD_LEN; diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c index 8bb173e01084..323982fd00c3 100644 --- a/drivers/scsi/hosts.c +++ b/drivers/scsi/hosts.c @@ -217,6 +217,13 @@ int scsi_add_host_with_dma(struct Scsi_Host *shost, struct device *dev, error = scsi_mq_setup_tags(shost); if (error) goto fail; + } else { + shost->bqt = blk_init_tags(shost->can_queue, + shost->hostt->tag_alloc_policy); + if (!shost->bqt) { + error = -ENOMEM; + goto fail; + } } /* diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 40669f8dd0df..7506b65d8e6c 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -4983,7 +4983,6 @@ static int hpsa_scan_finished(struct Scsi_Host *sh, static int hpsa_scsi_host_alloc(struct ctlr_info *h) { struct Scsi_Host *sh; - int error; sh = scsi_host_alloc(&hpsa_driver_template, sizeof(h)); if (sh == NULL) { @@ -5004,14 +5003,7 @@ static int hpsa_scsi_host_alloc(struct ctlr_info *h) sh->hostdata[0] = (unsigned long) h; sh->irq = h->intr[h->intr_mode]; sh->unique_id = sh->irq; - error = scsi_init_shared_tag_map(sh, sh->can_queue); - if (error) { - dev_err(&h->pdev->dev, - "%s: scsi_init_shared_tag_map failed for controller %d\n", - __func__, h->ctlr); - scsi_host_put(sh); - return error; - } + h->scsi_host = sh; return 0; } diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 057d27721d5b..6aa317c303e2 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -3095,7 +3095,6 @@ static struct scsi_host_template driver_template = { .max_sectors = IBMVFC_MAX_SECTORS, .use_clustering = ENABLE_CLUSTERING, .shost_attrs = ibmvfc_attrs, - .use_blk_tags = 1, .track_queue_depth = 1, }; diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index b62836ddbbee..4f2c16778efa 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -6502,7 +6502,6 @@ static struct scsi_host_template driver_template = { .shost_attrs = ipr_ioa_attrs, .sdev_attrs = ipr_dev_attrs, .proc_name = IPR_NAME, - .use_blk_tags = 1, }; /** diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c index 0dfcabe3ca7c..2f973df72d9b 100644 --- a/drivers/scsi/isci/init.c +++ b/drivers/scsi/isci/init.c @@ -170,7 +170,6 @@ static struct scsi_host_template isci_sht = { .target_destroy = sas_target_destroy, .ioctl = sas_ioctl, .shost_attrs = isci_host_attrs, - .use_blk_tags = 1, .track_queue_depth = 1, }; diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index 051b3b3bd625..4679ed4444a7 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -5914,7 +5914,6 @@ struct scsi_host_template lpfc_template_s3 = { .max_sectors = 0xFFFF, .vendor_id = LPFC_NL_VENDOR_ID, .change_queue_depth = scsi_change_queue_depth, - .use_blk_tags = 1, .track_queue_depth = 1, }; @@ -5940,7 +5939,6 @@ struct scsi_host_template lpfc_template = { .max_sectors = 0xFFFF, .vendor_id = LPFC_NL_VENDOR_ID, .change_queue_depth = scsi_change_queue_depth, - .use_blk_tags = 1, .track_queue_depth = 1, }; @@ -5964,6 +5962,5 @@ struct scsi_host_template lpfc_vport_template = { .shost_attrs = lpfc_vport_attrs, .max_sectors = 0xFFFF, .change_queue_depth = scsi_change_queue_depth, - .use_blk_tags = 1, .track_queue_depth = 1, }; diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index eaa81e552fd2..3b3f4809331b 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -5049,7 +5049,6 @@ static int megasas_start_aen(struct megasas_instance *instance) static int megasas_io_attach(struct megasas_instance *instance) { struct Scsi_Host *host = instance->host; - u32 error; /* * Export parameters required by SCSI mid-layer @@ -5099,13 +5098,6 @@ static int megasas_io_attach(struct megasas_instance *instance) host->hostt->eh_device_reset_handler = NULL; host->hostt->eh_bus_reset_handler = NULL; } - error = scsi_init_shared_tag_map(host, host->can_queue); - if (error) { - dev_err(&instance->pdev->dev, - "Failed to shared tag from %s %d\n", - __func__, __LINE__); - return -ENODEV; - } /* * Notify the mid-layer about the new controller diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c index e2d555c1bffc..221d25e9dc5f 100644 --- a/drivers/scsi/mvsas/mv_init.c +++ b/drivers/scsi/mvsas/mv_init.c @@ -65,7 +65,6 @@ static struct scsi_host_template mvs_sht = { .target_destroy = sas_target_destroy, .ioctl = sas_ioctl, .shost_attrs = mvst_host_attrs, - .use_blk_tags = 1, .track_queue_depth = 1, }; diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c index 5c0356fb6310..e64b8bfafd80 100644 --- a/drivers/scsi/pm8001/pm8001_init.c +++ b/drivers/scsi/pm8001/pm8001_init.c @@ -88,7 +88,6 @@ static struct scsi_host_template pm8001_sht = { .target_destroy = sas_target_destroy, .ioctl = sas_ioctl, .shost_attrs = pm8001_host_attrs, - .use_blk_tags = 1, .track_queue_depth = 1, }; diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c index ed31d8cc6266..48d62249c226 100644 --- a/drivers/scsi/pmcraid.c +++ b/drivers/scsi/pmcraid.c @@ -4254,7 +4254,6 @@ static struct scsi_host_template pmcraid_host_template = { .use_clustering = ENABLE_CLUSTERING, .shost_attrs = pmcraid_host_attrs, .proc_name = PMCRAID_DRIVER_NAME, - .use_blk_tags = 1, }; /* diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index c2dd17b1d26f..bfa9a64c316b 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -267,7 +267,6 @@ struct scsi_host_template qla2xxx_driver_template = { .shost_attrs = qla2x00_host_attrs, .supported_mode = MODE_INITIATOR, - .use_blk_tags = 1, .track_queue_depth = 1, }; diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 6d25879d87c8..01c3610a60cf 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -212,7 +212,6 @@ static struct scsi_host_template qla4xxx_driver_template = { .shost_attrs = qla4xxx_host_attrs, .host_reset = qla4xxx_host_reset, .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC, - .use_blk_tags = 1, }; static struct iscsi_transport qla4xxx_iscsi_transport = { @@ -8697,13 +8696,6 @@ static int qla4xxx_probe_adapter(struct pci_dev *pdev, host->can_queue = MAX_SRBS ; host->transportt = qla4xxx_scsi_transport; - ret = scsi_init_shared_tag_map(host, MAX_SRBS); - if (ret) { - ql4_printk(KERN_WARNING, ha, - "%s: scsi_init_shared_tag_map failed\n", __func__); - goto probe_failed; - } - pci_set_drvdata(pdev, ha); ret = scsi_add_host(host, &pdev->dev); diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index 207d6a7a1bd0..d07fb653f5dc 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -616,32 +616,11 @@ void scsi_finish_command(struct scsi_cmnd *cmd) */ int scsi_change_queue_depth(struct scsi_device *sdev, int depth) { - unsigned long flags; - - if (depth <= 0) - goto out; - - spin_lock_irqsave(sdev->request_queue->queue_lock, flags); - - /* - * Check to see if the queue is managed by the block layer. - * If it is, and we fail to adjust the depth, exit. - * - * Do not resize the tag map if it is a host wide share bqt, - * because the size should be the hosts's can_queue. If there - * is more IO than the LLD's can_queue (so there are not enuogh - * tags) request_fn's host queue ready check will handle it. - */ - if (!shost_use_blk_mq(sdev->host) && !sdev->host->bqt) { - if (blk_queue_tagged(sdev->request_queue) && - blk_queue_resize_tags(sdev->request_queue, depth) != 0) - goto out_unlock; + if (depth > 0) { + sdev->queue_depth = depth; + wmb(); } - sdev->queue_depth = depth; -out_unlock: - spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); -out: return sdev->queue_depth; } EXPORT_SYMBOL(scsi_change_queue_depth); diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index f9f3f8203d42..998f3788d8e9 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -274,8 +274,7 @@ static struct scsi_device *scsi_alloc_sdev(struct scsi_target *starget, WARN_ON_ONCE(!blk_get_queue(sdev->request_queue)); sdev->request_queue->queuedata = sdev; - if (!shost_use_blk_mq(sdev->host) && - (shost->bqt || shost->hostt->use_blk_tags)) { + if (!shost_use_blk_mq(sdev->host)) { blk_queue_init_tags(sdev->request_queue, sdev->host->cmd_per_lun, shost->bqt, shost->hostt->tag_alloc_policy); diff --git a/drivers/scsi/snic/snic_main.c b/drivers/scsi/snic/snic_main.c index b2b87cef00fc..2b3c25371d76 100644 --- a/drivers/scsi/snic/snic_main.c +++ b/drivers/scsi/snic/snic_main.c @@ -124,7 +124,6 @@ static struct scsi_host_template snic_host_template = { .sg_tablesize = SNIC_MAX_SG_DESC_CNT, .max_sectors = 0x800, .shost_attrs = snic_attrs, - .use_blk_tags = 1, .track_queue_depth = 1, .cmd_size = sizeof(struct snic_internal_io_state), .proc_name = "snic_scsi", @@ -533,15 +532,6 @@ snic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) snic->max_tag_id = shost->can_queue; - ret = scsi_init_shared_tag_map(shost, snic->max_tag_id); - if (ret) { - SNIC_HOST_ERR(shost, - "Unable to alloc shared tag map. %d\n", - ret); - - goto err_dev_close; - } - shost->max_lun = snic->config.luns_per_tgt; shost->max_id = SNIC_MAX_TARGET; diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c index 98a62bc15069..56353cd9abd3 100644 --- a/drivers/scsi/stex.c +++ b/drivers/scsi/stex.c @@ -1374,7 +1374,6 @@ static struct scsi_host_template driver_template = { .eh_abort_handler = stex_abort, .eh_host_reset_handler = stex_reset, .this_id = -1, - .use_blk_tags = 1, }; static struct pci_device_id stex_pci_tbl[] = { @@ -1659,13 +1658,6 @@ static int stex_probe(struct pci_dev *pdev, const struct pci_device_id *id) if (err) goto out_free_irq; - err = scsi_init_shared_tag_map(host, host->can_queue); - if (err) { - printk(KERN_ERR DRV_NAME "(%s): init shared queue failed\n", - pci_name(pdev)); - goto out_free_irq; - } - pci_set_drvdata(pdev, hba); err = scsi_add_host(host, &pdev->dev); diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index b0ade73f8c6a..9065eb451677 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -4355,7 +4355,6 @@ static struct scsi_host_template ufshcd_driver_template = { .cmd_per_lun = UFSHCD_CMD_PER_LUN, .can_queue = UFSHCD_CAN_QUEUE, .max_host_blocked = 1, - .use_blk_tags = 1, .track_queue_depth = 1, }; @@ -5619,13 +5618,6 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq) hba->is_irq_enabled = true; } - /* Enable SCSI tag mapping */ - err = scsi_init_shared_tag_map(host, host->can_queue); - if (err) { - dev_err(hba->dev, "init shared queue failed\n"); - goto exit_gating; - } - err = scsi_add_host(host, hba->dev); if (err) { dev_err(hba->dev, "scsi_add_host failed\n"); diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index 5bc85ffed720..081f1cfefeb3 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -377,7 +377,6 @@ static struct scsi_host_template tcm_loop_driver_template = { .use_clustering = DISABLE_CLUSTERING, .slave_alloc = tcm_loop_slave_alloc, .module = THIS_MODULE, - .use_blk_tags = 1, .track_queue_depth = 1, }; diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index f68921909552..2850663f5126 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -812,7 +812,6 @@ static struct scsi_host_template uas_host_template = { .this_id = -1, .sg_tablesize = SG_NONE, .skip_settle_delay = 1, - .use_blk_tags = 1, }; #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \ @@ -929,10 +928,6 @@ static int uas_probe(struct usb_interface *intf, const struct usb_device_id *id) if (result) goto set_alt0; - result = scsi_init_shared_tag_map(shost, devinfo->qdepth - 2); - if (result) - goto free_streams; - usb_set_intfdata(intf, shost); result = scsi_add_host(shost, &intf->dev); if (result) diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index e113c757d555..ed527121031d 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -406,11 +406,6 @@ struct scsi_host_template { int tag_alloc_policy; /* - * Let the block layer assigns tags to all commands. - */ - unsigned use_blk_tags:1; - - /* * Track QUEUE_FULL events and reduce queue depth on demand. */ unsigned track_queue_depth:1; diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h index b27977e8aaed..4416b1026189 100644 --- a/include/scsi/scsi_tcq.h +++ b/include/scsi/scsi_tcq.h @@ -10,91 +10,36 @@ #ifdef CONFIG_BLOCK -static inline struct scsi_cmnd *scsi_mq_find_tag(struct Scsi_Host *shost, - int unique_tag) -{ - u16 hwq = blk_mq_unique_tag_to_hwq(unique_tag); - struct request *req = NULL; - - if (hwq < shost->tag_set.nr_hw_queues) - req = blk_mq_tag_to_rq(shost->tag_set.tags[hwq], - blk_mq_unique_tag_to_tag(unique_tag)); - return req ? (struct scsi_cmnd *)req->special : NULL; -} - -/** - * scsi_find_tag - find a tagged command by device - * @SDpnt: pointer to the ScSI device - * @tag: tag generated by blk_mq_unique_tag() - * - * Notes: - * Only works with tags allocated by the generic blk layer. - **/ -static inline struct scsi_cmnd *scsi_find_tag(struct scsi_device *sdev, int tag) -{ - struct request *req; - - if (tag != SCSI_NO_TAG) { - if (shost_use_blk_mq(sdev->host)) - return scsi_mq_find_tag(sdev->host, tag); - - req = blk_queue_find_tag(sdev->request_queue, tag); - return req ? (struct scsi_cmnd *)req->special : NULL; - } - - /* single command, look in space */ - return sdev->current_cmnd; -} - - -/** - * scsi_init_shared_tag_map - create a shared tag map - * @shost: the host to share the tag map among all devices - * @depth: the total depth of the map - */ -static inline int scsi_init_shared_tag_map(struct Scsi_Host *shost, int depth) -{ - /* - * We always have a shared tag map around when using blk-mq. - */ - if (shost_use_blk_mq(shost)) - return 0; - - /* - * If the shared tag map isn't already initialized, do it now. - * This saves callers from having to check ->bqt when setting up - * devices on the shared host (for libata) - */ - if (!shost->bqt) { - shost->bqt = blk_init_tags(depth, - shost->hostt->tag_alloc_policy); - if (!shost->bqt) - return -ENOMEM; - } - - return 0; -} - /** * scsi_host_find_tag - find the tagged command by host * @shost: pointer to scsi_host - * @tag: tag generated by blk_mq_unique_tag() + * @tag: tag * - * Notes: - * Only works with tags allocated by the generic blk layer. + * Note: for devices using multiple hardware queues tag must have been + * generated by blk_mq_unique_tag(). **/ static inline struct scsi_cmnd *scsi_host_find_tag(struct Scsi_Host *shost, - int tag) + int tag) { - struct request *req; + struct request *req = NULL; - if (tag != SCSI_NO_TAG) { - if (shost_use_blk_mq(shost)) - return scsi_mq_find_tag(shost, tag); + if (tag == SCSI_NO_TAG) + return NULL; + + if (shost_use_blk_mq(shost)) { + u16 hwq = blk_mq_unique_tag_to_hwq(tag); + + if (hwq < shost->tag_set.nr_hw_queues) { + req = blk_mq_tag_to_rq(shost->tag_set.tags[hwq], + blk_mq_unique_tag_to_tag(tag)); + } + } else { req = blk_map_queue_find_tag(shost->bqt, tag); - return req ? (struct scsi_cmnd *)req->special : NULL; } - return NULL; + + if (!req) + return NULL; + return req->special; } #endif /* CONFIG_BLOCK */ |
