From 5066863337afdb0ad7323f424f7959d9f9f066da Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 30 Oct 2014 14:30:06 +0100 Subject: scsi: remove abuses of scsi_populate_tag Unless we want to build a SPI tag message we should just check SCMD_TAGGED instead of reverse engineering a tag type through the use of scsi_populate_tag_msg. Also rename the function to spi_populate_tag_msg, make it behave like the other spi message helpers, and move it to the spi transport class. Signed-off-by: Christoph Hellwig Reviewed-by: Mike Christie Reviewed-by: Hannes Reinecke --- drivers/scsi/tmscsim.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) (limited to 'drivers/scsi/tmscsim.c') diff --git a/drivers/scsi/tmscsim.c b/drivers/scsi/tmscsim.c index 764575726c85..547812437a7c 100644 --- a/drivers/scsi/tmscsim.c +++ b/drivers/scsi/tmscsim.c @@ -243,7 +243,6 @@ #include #include - #define DC390_BANNER "Tekram DC390/AM53C974" #define DC390_VERSION "2.1d 2004-05-27" @@ -508,7 +507,6 @@ dc390_StartSCSI( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_sr struct scsi_cmnd *scmd = pSRB->pcmd; struct scsi_device *sdev = scmd->device; u8 cmd, disc_allowed, try_sync_nego; - char tag[2]; pSRB->ScsiPhase = SCSI_NOP0; @@ -560,11 +558,11 @@ dc390_StartSCSI( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_sr cmd = SEL_W_ATN; DC390_write8 (ScsiFifo, IDENTIFY(disc_allowed, pDCB->TargetLUN)); /* Change 99/05/31: Don't use tags when not disconnecting (BUSY) */ - if ((pDCB->SyncMode & EN_TAG_QUEUEING) && disc_allowed && scsi_populate_tag_msg(scmd, tag)) { - DC390_write8(ScsiFifo, tag[0]); - pDCB->TagMask |= 1 << tag[1]; - pSRB->TagNumber = tag[1]; - DC390_write8(ScsiFifo, tag[1]); + if ((pDCB->SyncMode & EN_TAG_QUEUEING) && disc_allowed && (scmd->flags & SCMD_TAGGED)) { + DC390_write8(ScsiFifo, MSG_SIMPLE_TAG); + pDCB->TagMask |= 1 << scmd->request->tag; + pSRB->TagNumber = scmd->request->tag; + DC390_write8(ScsiFifo, scmd->request->tag); DEBUG1(printk(KERN_INFO "DC390: Select w/DisCn for SRB %p, block tag %02x\n", pSRB, tag[1])); cmd = SEL_W_ATN3; } else { -- cgit v1.2.3-59-g8ed1b From 2ecb204d07ac8debe3893c362415919bc78bebd6 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 3 Nov 2014 14:09:02 +0100 Subject: scsi: always assign block layer tags if enabled Allow a driver to ask for block layer tags by setting .use_blk_tags in the host template, in which case it will always see a valid value in request->tag, similar to the behavior when using blk-mq. This means even SCSI "untagged" commands will now have a tag, which is especially useful when using a host-wide tag map. Signed-off-by: Christoph Hellwig Reviewed-by: Mike Christie Reviewed-by: Martin K. Petersen Reviewed-by: Hannes Reinecke --- Documentation/scsi/scsi_mid_low_api.txt | 38 +-------------------------------- drivers/message/fusion/mptsas.c | 1 + drivers/scsi/53c700.c | 12 +++++------ drivers/scsi/aic7xxx/aic79xx_osm.c | 11 +++++----- drivers/scsi/aic7xxx/aic7xxx_osm.c | 11 +++++----- drivers/scsi/aic94xx/aic94xx_init.c | 1 + drivers/scsi/bfa/bfad_im.c | 8 +++---- drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 1 + drivers/scsi/csiostor/csio_scsi.c | 8 +++---- drivers/scsi/esas2r/esas2r_main.c | 12 +++++------ drivers/scsi/esp_scsi.c | 6 +++--- drivers/scsi/fcoe/fcoe.c | 1 + drivers/scsi/fnic/fnic_main.c | 3 ++- drivers/scsi/ibmvscsi/ibmvfc.c | 11 +++++----- drivers/scsi/ipr.c | 1 + drivers/scsi/isci/init.c | 1 + drivers/scsi/libfc/fc_fcp.c | 7 +----- drivers/scsi/libsas/sas_scsi_host.c | 11 +++------- drivers/scsi/lpfc/lpfc_scsi.c | 7 +++--- drivers/scsi/mvsas/mv_init.c | 1 + drivers/scsi/pm8001/pm8001_init.c | 1 + drivers/scsi/pmcraid.c | 4 ++-- drivers/scsi/qla2xxx/qla_os.c | 6 ++---- drivers/scsi/qla4xxx/ql4_os.c | 10 ++------- drivers/scsi/scsi.c | 12 ++++------- drivers/scsi/scsi_scan.c | 6 ++++++ drivers/scsi/stex.c | 10 ++------- drivers/scsi/tmscsim.c | 3 ++- drivers/scsi/ufs/ufshcd.c | 5 +++-- drivers/target/loopback/tcm_loop.c | 2 +- drivers/usb/storage/uas.c | 4 ++-- include/scsi/scsi_host.h | 5 +++++ include/scsi/scsi_tcq.h | 34 ----------------------------- 33 files changed, 86 insertions(+), 168 deletions(-) (limited to 'drivers/scsi/tmscsim.c') diff --git a/Documentation/scsi/scsi_mid_low_api.txt b/Documentation/scsi/scsi_mid_low_api.txt index d6a9bdeee7f2..a67194209581 100644 --- a/Documentation/scsi/scsi_mid_low_api.txt +++ b/Documentation/scsi/scsi_mid_low_api.txt @@ -366,13 +366,11 @@ is initialized. The functions below are listed alphabetically and their names all start with "scsi_". Summary: - scsi_activate_tcq - turn on tag command queueing scsi_add_device - creates new scsi device (lu) instance scsi_add_host - perform sysfs registration and set up transport class scsi_adjust_queue_depth - change the queue depth on a SCSI device scsi_bios_ptable - return copy of block device's partition table scsi_block_requests - prevent further commands being queued to given host - scsi_deactivate_tcq - turn off tag command queueing scsi_host_alloc - return a new scsi_host instance whose refcount==1 scsi_host_get - increments Scsi_Host instance's refcount scsi_host_put - decrements Scsi_Host instance's refcount (free if 0) @@ -389,24 +387,6 @@ Summary: Details: -/** - * scsi_activate_tcq - turn on tag command queueing ("ordered" task attribute) - * @sdev: device to turn on TCQ for - * @depth: queue depth - * - * Returns nothing - * - * Might block: no - * - * Notes: Eventually, it is hoped depth would be the maximum depth - * the device could cope with and the real queue depth - * would be adjustable from 0 to depth. - * - * Defined (inline) in: include/scsi/scsi_tcq.h - **/ -void scsi_activate_tcq(struct scsi_device *sdev, int depth) - - /** * scsi_add_device - creates new scsi device (lu) instance * @shost: pointer to scsi host instance @@ -471,9 +451,7 @@ int scsi_add_host(struct Scsi_Host *shost, struct device * dev) * * Notes: Can be invoked any time on a SCSI device controlled by this * LLD. [Specifically during and after slave_configure() and prior to - * slave_destroy().] Can safely be invoked from interrupt code. Actual - * queue depth change may be delayed until the next command is being - * processed. See also scsi_activate_tcq() and scsi_deactivate_tcq(). + * slave_destroy().] Can safely be invoked from interrupt code. * * Defined in: drivers/scsi/scsi.c [see source code for more notes] * @@ -514,20 +492,6 @@ unsigned char *scsi_bios_ptable(struct block_device *dev) void scsi_block_requests(struct Scsi_Host * shost) -/** - * scsi_deactivate_tcq - turn off tag command queueing - * @sdev: device to turn off TCQ for - * @depth: queue depth (stored in sdev) - * - * Returns nothing - * - * Might block: no - * - * Defined (inline) in: include/scsi/scsi_tcq.h - **/ -void scsi_deactivate_tcq(struct scsi_device *sdev, int depth) - - /** * scsi_host_alloc - create a scsi host adapter instance and perform basic * initialization. diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c index 0707fa2c701b..5bdaae15a742 100644 --- a/drivers/message/fusion/mptsas.c +++ b/drivers/message/fusion/mptsas.c @@ -1994,6 +1994,7 @@ 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 1b36fd3a6e62..497cbb1efd4b 100644 --- a/drivers/scsi/53c700.c +++ b/drivers/scsi/53c700.c @@ -327,6 +327,7 @@ NCR_700_detect(struct scsi_host_template *tpnt, tpnt->slave_alloc = NCR_700_slave_alloc; tpnt->change_queue_depth = NCR_700_change_queue_depth; tpnt->change_queue_type = NCR_700_change_queue_type; + tpnt->use_blk_tags = 1; if(tpnt->name == NULL) tpnt->name = "53c700"; @@ -902,7 +903,7 @@ process_message(struct Scsi_Host *host, struct NCR_700_Host_Parameters *hostdata NCR_700_set_tag_neg_state(SCp->device, NCR_700_FINISHED_TAG_NEGOTIATION); hostdata->tag_negotiated &= ~(1<device->tagged_supported = 0; - scsi_deactivate_tcq(SCp->device, host->cmd_per_lun); + scsi_adjust_queue_depth(SCp->device, 0, host->cmd_per_lun); } else { shost_printk(KERN_WARNING, host, "(%d:%d) Unexpected REJECT Message %s\n", @@ -2049,8 +2050,7 @@ NCR_700_slave_configure(struct scsi_device *SDp) /* to do here: allocate memory; build a queue_full list */ if(SDp->tagged_supported) { - scsi_set_tag_type(SDp, MSG_ORDERED_TAG); - scsi_activate_tcq(SDp, NCR_700_DEFAULT_TAGS); + scsi_adjust_queue_depth(SDp, MSG_ORDERED_TAG, NCR_700_DEFAULT_TAGS); NCR_700_set_tag_neg_state(SDp, NCR_700_START_TAG_NEGOTIATION); } else { /* initialise to default depth */ @@ -2094,8 +2094,6 @@ static int NCR_700_change_queue_type(struct scsi_device *SDp, int tag_type) struct NCR_700_Host_Parameters *hostdata = (struct NCR_700_Host_Parameters *)SDp->host->hostdata[0]; - scsi_set_tag_type(SDp, tag_type); - /* We have a global (per target) flag to track whether TCQ is * enabled, so we'll be turning it off for the entire target here. * our tag algorithm will fail if we mix tagged and untagged commands, @@ -2106,12 +2104,12 @@ static int NCR_700_change_queue_type(struct scsi_device *SDp, int tag_type) if (!tag_type) { /* shift back to the default unqueued number of commands * (the user can still raise this) */ - scsi_deactivate_tcq(SDp, SDp->host->cmd_per_lun); + scsi_adjust_queue_depth(SDp, 0, SDp->host->cmd_per_lun); hostdata->tag_negotiated &= ~(1 << sdev_id(SDp)); } else { /* Here, we cleared the negotiation flag above, so this * will force the driver to renegotiate */ - scsi_activate_tcq(SDp, SDp->queue_depth); + scsi_adjust_queue_depth(SDp, tag_type, SDp->queue_depth); if (change_tag) NCR_700_set_tag_neg_state(SDp, NCR_700_START_TAG_NEGOTIATION); } diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c index d3b6d68107ea..9fd6b5618b25 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm.c +++ b/drivers/scsi/aic7xxx/aic79xx_osm.c @@ -925,6 +925,7 @@ 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 *************************************/ @@ -1468,12 +1469,12 @@ ahd_platform_set_tags(struct ahd_softc *ahd, struct scsi_device *sdev, switch ((dev->flags & (AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED))) { case AHD_DEV_Q_BASIC: - scsi_set_tag_type(sdev, MSG_SIMPLE_TASK); - scsi_activate_tcq(sdev, dev->openings + dev->active); + scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TASK, + dev->openings + dev->active); break; case AHD_DEV_Q_TAGGED: - scsi_set_tag_type(sdev, MSG_ORDERED_TASK); - scsi_activate_tcq(sdev, dev->openings + dev->active); + scsi_adjust_queue_depth(sdev, MSG_ORDERED_TASK, + dev->openings + dev->active); break; default: /* @@ -1482,7 +1483,7 @@ ahd_platform_set_tags(struct ahd_softc *ahd, struct scsi_device *sdev, * serially on the controller/device. This should * remove some latency. */ - scsi_deactivate_tcq(sdev, 1); + scsi_adjust_queue_depth(sdev, 0, 1); break; } } diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c index 33a5f959e86a..f18b6d69d3fb 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -812,6 +812,7 @@ 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 *********************************/ @@ -1334,12 +1335,12 @@ ahc_platform_set_tags(struct ahc_softc *ahc, struct scsi_device *sdev, } switch ((dev->flags & (AHC_DEV_Q_BASIC|AHC_DEV_Q_TAGGED))) { case AHC_DEV_Q_BASIC: - scsi_set_tag_type(sdev, MSG_SIMPLE_TAG); - scsi_activate_tcq(sdev, dev->openings + dev->active); + scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TASK, + dev->openings + dev->active); break; case AHC_DEV_Q_TAGGED: - scsi_set_tag_type(sdev, MSG_ORDERED_TAG); - scsi_activate_tcq(sdev, dev->openings + dev->active); + scsi_adjust_queue_depth(sdev, MSG_ORDERED_TASK, + dev->openings + dev->active); break; default: /* @@ -1348,7 +1349,7 @@ ahc_platform_set_tags(struct ahc_softc *ahc, struct scsi_device *sdev, * serially on the controller/device. This should * remove some latency. */ - scsi_deactivate_tcq(sdev, 2); + scsi_adjust_queue_depth(sdev, 0, 2); break; } } diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c index c56741fc4b99..579dc2f460c4 100644 --- a/drivers/scsi/aic94xx/aic94xx_init.c +++ b/drivers/scsi/aic94xx/aic94xx_init.c @@ -83,6 +83,7 @@ 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, }; static int asd_map_memio(struct asd_ha_struct *asd_ha) diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c index 99280e89c289..d8e43c81d19b 100644 --- a/drivers/scsi/bfa/bfad_im.c +++ b/drivers/scsi/bfa/bfad_im.c @@ -776,11 +776,7 @@ bfad_thread_workq(struct bfad_s *bfad) static int bfad_im_slave_configure(struct scsi_device *sdev) { - if (sdev->tagged_supported) - scsi_activate_tcq(sdev, bfa_lun_queue_depth); - else - scsi_deactivate_tcq(sdev, bfa_lun_queue_depth); - + scsi_adjust_queue_depth(sdev, 0, bfa_lun_queue_depth); return 0; } @@ -804,6 +800,7 @@ 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 = { @@ -825,6 +822,7 @@ 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 3c6dc8abc776..cd2e61025926 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -2790,6 +2790,7 @@ 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, }; static struct libfc_function_template bnx2fc_libfc_fcn_templ = { diff --git a/drivers/scsi/csiostor/csio_scsi.c b/drivers/scsi/csiostor/csio_scsi.c index 8231505cce0a..f73155db80a3 100644 --- a/drivers/scsi/csiostor/csio_scsi.c +++ b/drivers/scsi/csiostor/csio_scsi.c @@ -2241,11 +2241,7 @@ csio_slave_alloc(struct scsi_device *sdev) static int csio_slave_configure(struct scsi_device *sdev) { - if (sdev->tagged_supported) - scsi_activate_tcq(sdev, csio_lun_qdepth); - else - scsi_deactivate_tcq(sdev, csio_lun_qdepth); - + scsi_adjust_queue_depth(sdev, 0, csio_lun_qdepth); return 0; } @@ -2290,6 +2286,7 @@ 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 = { @@ -2309,6 +2306,7 @@ 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 be09c628d034..a020b09ba347 100644 --- a/drivers/scsi/esas2r/esas2r_main.c +++ b/drivers/scsi/esas2r/esas2r_main.c @@ -260,6 +260,7 @@ static struct scsi_host_template driver_template = { .change_queue_depth = esas2r_change_queue_depth, .change_queue_type = scsi_change_queue_type, .max_sectors = 0xFFFF, + .use_blk_tags = 1, }; int sgl_page_size = 512; @@ -1278,13 +1279,10 @@ int esas2r_slave_configure(struct scsi_device *dev) esas2r_log_dev(ESAS2R_LOG_INFO, &(dev->sdev_gendev), "esas2r_slave_configure()"); - if (dev->tagged_supported) { - scsi_set_tag_type(dev, MSG_SIMPLE_TAG); - scsi_activate_tcq(dev, cmd_per_lun); - } else { - scsi_set_tag_type(dev, 0); - scsi_deactivate_tcq(dev, cmd_per_lun); - } + if (dev->tagged_supported) + scsi_adjust_queue_depth(dev, MSG_SIMPLE_TAG, cmd_per_lun); + else + scsi_adjust_queue_depth(dev, 0, cmd_per_lun); return 0; } diff --git a/drivers/scsi/esp_scsi.c b/drivers/scsi/esp_scsi.c index b23101b28bfa..66b6ce10b259 100644 --- a/drivers/scsi/esp_scsi.c +++ b/drivers/scsi/esp_scsi.c @@ -2419,10 +2419,9 @@ static int esp_slave_configure(struct scsi_device *dev) queue_depth = dev->host->cmd_per_lun; if (goal_tags) { - scsi_set_tag_type(dev, MSG_ORDERED_TAG); - scsi_activate_tcq(dev, queue_depth); + scsi_adjust_queue_depth(dev, MSG_ORDERED_TAG, queue_depth); } else { - scsi_deactivate_tcq(dev, queue_depth); + scsi_adjust_queue_depth(dev, 0, queue_depth); } tp->flags |= ESP_TGT_DISCONNECT; @@ -2631,6 +2630,7 @@ 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 86956cc3448e..a3eeb6842499 100644 --- a/drivers/scsi/fcoe/fcoe.c +++ b/drivers/scsi/fcoe/fcoe.c @@ -288,6 +288,7 @@ static struct scsi_host_template fcoe_shost_template = { .use_clustering = ENABLE_CLUSTERING, .sg_tablesize = SG_ALL, .max_sectors = 0xffff, + .use_blk_tags = 1, }; /** diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c index 8581ce662cf0..2a6c98b7d4db 100644 --- a/drivers/scsi/fnic/fnic_main.c +++ b/drivers/scsi/fnic/fnic_main.c @@ -100,7 +100,7 @@ static int fnic_slave_alloc(struct scsi_device *sdev) if (!rport || fc_remote_port_chkready(rport)) return -ENXIO; - scsi_activate_tcq(sdev, fnic_max_qdepth); + scsi_adjust_queue_depth(sdev, 0, fnic_max_qdepth); return 0; } @@ -121,6 +121,7 @@ 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, }; static void diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index a964f8c85833..4723d89df5ac 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -2888,11 +2888,11 @@ static int ibmvfc_slave_configure(struct scsi_device *sdev) if (sdev->type == TYPE_DISK) sdev->allow_restart = 1; - if (sdev->tagged_supported) { - scsi_set_tag_type(sdev, MSG_SIMPLE_TAG); - scsi_activate_tcq(sdev, sdev->queue_depth); - } else - scsi_deactivate_tcq(sdev, sdev->queue_depth); + if (sdev->tagged_supported) + scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, + sdev->queue_depth); + else + scsi_adjust_queue_depth(sdev, 0, sdev->queue_depth); spin_unlock_irqrestore(shost->host_lock, flags); return 0; } @@ -3108,6 +3108,7 @@ static struct scsi_host_template driver_template = { .max_sectors = IBMVFC_MAX_SECTORS, .use_clustering = ENABLE_CLUSTERING, .shost_attrs = ibmvfc_attrs, + .use_blk_tags = 1, }; /** diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index 6b52feafa929..f84fcb9a6ed7 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -6317,6 +6317,7 @@ static struct scsi_host_template driver_template = { .sdev_attrs = ipr_dev_attrs, .proc_name = IPR_NAME, .no_write_same = 1, + .use_blk_tags = 1, }; /** diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c index 2e890b1e2526..897562056018 100644 --- a/drivers/scsi/isci/init.c +++ b/drivers/scsi/isci/init.c @@ -172,6 +172,7 @@ static struct scsi_host_template isci_sht = { .target_destroy = sas_target_destroy, .ioctl = sas_ioctl, .shost_attrs = isci_host_attrs, + .use_blk_tags = 1, }; static struct sas_domain_function_template isci_transport_ops = { diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c index f3043ad1f35d..d4bb642f2681 100644 --- a/drivers/scsi/libfc/fc_fcp.c +++ b/drivers/scsi/libfc/fc_fcp.c @@ -2160,12 +2160,7 @@ int fc_slave_alloc(struct scsi_device *sdev) if (!rport || fc_remote_port_chkready(rport)) return -ENXIO; - if (sdev->tagged_supported) - scsi_activate_tcq(sdev, FC_FCP_DFLT_QUEUE_DEPTH); - else - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), - FC_FCP_DFLT_QUEUE_DEPTH); - + scsi_adjust_queue_depth(sdev, 0, FC_FCP_DFLT_QUEUE_DEPTH); return 0; } EXPORT_SYMBOL(fc_slave_alloc); diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c index 24e477d2ea70..eee21a060d93 100644 --- a/drivers/scsi/libsas/sas_scsi_host.c +++ b/drivers/scsi/libsas/sas_scsi_host.c @@ -940,15 +940,13 @@ int sas_slave_configure(struct scsi_device *scsi_dev) sas_read_port_mode_page(scsi_dev); if (scsi_dev->tagged_supported) { - scsi_set_tag_type(scsi_dev, MSG_SIMPLE_TAG); - scsi_activate_tcq(scsi_dev, SAS_DEF_QD); + scsi_adjust_queue_depth(scsi_dev, MSG_SIMPLE_TAG, SAS_DEF_QD); } else { SAS_DPRINTK("device %llx, LUN %llx doesn't support " "TCQ\n", SAS_ADDR(dev->sas_addr), scsi_dev->lun); scsi_dev->tagged_supported = 0; - scsi_set_tag_type(scsi_dev, 0); - scsi_deactivate_tcq(scsi_dev, 1); + scsi_adjust_queue_depth(scsi_dev, 0, 1); } scsi_dev->allow_restart = 1; @@ -991,10 +989,7 @@ int sas_change_queue_type(struct scsi_device *scsi_dev, int qt) if (!scsi_dev->tagged_supported) return 0; - scsi_deactivate_tcq(scsi_dev, 1); - - scsi_set_tag_type(scsi_dev, qt); - scsi_activate_tcq(scsi_dev, scsi_dev->queue_depth); + scsi_adjust_queue_depth(scsi_dev, qt, scsi_dev->queue_depth); return qt; } diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index 4a150063fb4d..a24106a70968 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -5598,10 +5598,7 @@ lpfc_slave_configure(struct scsi_device *sdev) struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; struct lpfc_hba *phba = vport->phba; - if (sdev->tagged_supported) - scsi_activate_tcq(sdev, vport->cfg_lun_queue_depth); - else - scsi_deactivate_tcq(sdev, vport->cfg_lun_queue_depth); + scsi_adjust_queue_depth(sdev, 0, vport->cfg_lun_queue_depth); if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { lpfc_sli_handle_fast_ring_event(phba, @@ -5986,6 +5983,7 @@ struct scsi_host_template lpfc_template = { .vendor_id = LPFC_NL_VENDOR_ID, .change_queue_depth = lpfc_change_queue_depth, .change_queue_type = scsi_change_queue_type, + .use_blk_tags = 1, }; struct scsi_host_template lpfc_vport_template = { @@ -6009,4 +6007,5 @@ struct scsi_host_template lpfc_vport_template = { .max_sectors = 0xFFFF, .change_queue_depth = lpfc_change_queue_depth, .change_queue_type = scsi_change_queue_type, + .use_blk_tags = 1, }; diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c index eacee48a955c..d3c1fa5e76fb 100644 --- a/drivers/scsi/mvsas/mv_init.c +++ b/drivers/scsi/mvsas/mv_init.c @@ -76,6 +76,7 @@ static struct scsi_host_template mvs_sht = { .target_destroy = sas_target_destroy, .ioctl = sas_ioctl, .shost_attrs = mvst_host_attrs, + .use_blk_tags = 1, }; static struct sas_domain_function_template mvs_transport_ops = { diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c index 666bf5af06e2..3ff759a3b74d 100644 --- a/drivers/scsi/pm8001/pm8001_init.c +++ b/drivers/scsi/pm8001/pm8001_init.c @@ -89,6 +89,7 @@ static struct scsi_host_template pm8001_sht = { .target_destroy = sas_target_destroy, .ioctl = sas_ioctl, .shost_attrs = pm8001_host_attrs, + .use_blk_tags = 1, }; /** diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c index d5fb31fa388b..71f9f59b13c6 100644 --- a/drivers/scsi/pmcraid.c +++ b/drivers/scsi/pmcraid.c @@ -251,7 +251,6 @@ static int pmcraid_slave_configure(struct scsi_device *scsi_dev) if (scsi_dev->tagged_supported && (RES_IS_GSCSI(res->cfg_entry) || RES_IS_VSET(res->cfg_entry))) { - scsi_activate_tcq(scsi_dev, scsi_dev->queue_depth); scsi_adjust_queue_depth(scsi_dev, MSG_SIMPLE_TAG, scsi_dev->host->cmd_per_lun); } else { @@ -4295,7 +4294,8 @@ static struct scsi_host_template pmcraid_host_template = { .cmd_per_lun = PMCRAID_MAX_CMD_PER_LUN, .use_clustering = ENABLE_CLUSTERING, .shost_attrs = pmcraid_host_attrs, - .proc_name = PMCRAID_DRIVER_NAME + .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 1e34fcf68e77..eb0465305f8d 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -269,6 +269,7 @@ struct scsi_host_template qla2xxx_driver_template = { .shost_attrs = qla2x00_host_attrs, .supported_mode = MODE_INITIATOR, + .use_blk_tags = 1, }; static struct scsi_transport_template *qla2xxx_transport_template = NULL; @@ -1404,10 +1405,7 @@ qla2xxx_slave_configure(struct scsi_device *sdev) if (IS_T10_PI_CAPABLE(vha->hw)) blk_queue_update_dma_alignment(sdev->request_queue, 0x7); - if (sdev->tagged_supported) - scsi_activate_tcq(sdev, req->max_q_depth); - else - scsi_deactivate_tcq(sdev, req->max_q_depth); + scsi_adjust_queue_depth(sdev, 0, req->max_q_depth); return 0; } diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 199fcf79a051..f3119c144e29 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -163,7 +163,6 @@ static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd); static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd); static int qla4xxx_slave_alloc(struct scsi_device *device); static int qla4xxx_slave_configure(struct scsi_device *device); -static void qla4xxx_slave_destroy(struct scsi_device *sdev); static umode_t qla4_attr_is_visible(int param_type, int param); static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type); static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth, @@ -206,7 +205,6 @@ static struct scsi_host_template qla4xxx_driver_template = { .slave_configure = qla4xxx_slave_configure, .slave_alloc = qla4xxx_slave_alloc, - .slave_destroy = qla4xxx_slave_destroy, .change_queue_depth = qla4xxx_change_queue_depth, .this_id = -1, @@ -218,6 +216,7 @@ 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 = { @@ -9065,7 +9064,7 @@ static int qla4xxx_slave_alloc(struct scsi_device *sdev) if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) queue_depth = ql4xmaxqdepth; - scsi_activate_tcq(sdev, queue_depth); + scsi_adjust_queue_depth(sdev, 0, queue_depth); return 0; } @@ -9075,11 +9074,6 @@ static int qla4xxx_slave_configure(struct scsi_device *sdev) return 0; } -static void qla4xxx_slave_destroy(struct scsi_device *sdev) -{ - scsi_deactivate_tcq(sdev, 1); -} - static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) { diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index 22c449e926fa..a3426f1bf0dd 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -864,16 +864,12 @@ EXPORT_SYMBOL(scsi_track_queue_full); */ int scsi_change_queue_type(struct scsi_device *sdev, int tag_type) { - if (sdev->tagged_supported) { - scsi_set_tag_type(sdev, tag_type); - if (tag_type) - scsi_activate_tcq(sdev, sdev->queue_depth); - else - scsi_deactivate_tcq(sdev, sdev->queue_depth); - } else - tag_type = 0; + if (!sdev->tagged_supported) + return 0; + scsi_adjust_queue_depth(sdev, tag_type, sdev->queue_depth); return tag_type; + } EXPORT_SYMBOL(scsi_change_queue_type); diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index b1aa1646012a..408891cb14ff 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -286,6 +286,12 @@ 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)) { + blk_queue_init_tags(sdev->request_queue, + sdev->host->cmd_per_lun, shost->bqt); + } scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); scsi_sysfs_device_initialize(sdev); diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c index 713af13b858e..b5eae4f6ba46 100644 --- a/drivers/scsi/stex.c +++ b/drivers/scsi/stex.c @@ -549,7 +549,7 @@ stex_slave_alloc(struct scsi_device *sdev) /* Cheat: usually extracted from Inquiry data */ sdev->tagged_supported = 1; - scsi_activate_tcq(sdev, sdev->host->can_queue); + scsi_adjust_queue_depth(sdev, 0, sdev->host->can_queue); return 0; } @@ -565,12 +565,6 @@ stex_slave_config(struct scsi_device *sdev) return 0; } -static void -stex_slave_destroy(struct scsi_device *sdev) -{ - scsi_deactivate_tcq(sdev, 1); -} - static int stex_queuecommand_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) { @@ -1390,10 +1384,10 @@ static struct scsi_host_template driver_template = { .queuecommand = stex_queuecommand, .slave_alloc = stex_slave_alloc, .slave_configure = stex_slave_config, - .slave_destroy = stex_slave_destroy, .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[] = { diff --git a/drivers/scsi/tmscsim.c b/drivers/scsi/tmscsim.c index 547812437a7c..6369f9a282f1 100644 --- a/drivers/scsi/tmscsim.c +++ b/drivers/scsi/tmscsim.c @@ -2187,7 +2187,7 @@ static int dc390_slave_configure(struct scsi_device *sdev) acb->scan_devices = 0; if (sdev->tagged_supported && (dcb->DevMode & TAG_QUEUEING_)) { dcb->SyncMode |= EN_TAG_QUEUEING; - scsi_activate_tcq(sdev, acb->TagMaxNum); + scsi_adjust_queue_depth(sdev, 0, acb->TagMaxNum); } return 0; @@ -2209,6 +2209,7 @@ static struct scsi_host_template driver_template = { .cmd_per_lun = 1, .use_clustering = ENABLE_CLUSTERING, .max_sectors = 0x4000, /* 8MiB = 16 * 1024 * 512 */ + .use_blk_tags = 1, }; /*********************************************************************** diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 9da319130da5..48c7f9e8f256 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -2695,7 +2695,8 @@ static void ufshcd_set_queue_depth(struct scsi_device *sdev) dev_dbg(hba->dev, "%s: activate tcq with queue depth %d\n", __func__, lun_qdepth); - scsi_activate_tcq(sdev, lun_qdepth); + if (sdev->tagged_supported) + scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), lun_qdepth); } /* @@ -2842,7 +2843,6 @@ static void ufshcd_slave_destroy(struct scsi_device *sdev) struct ufs_hba *hba; hba = shost_priv(sdev->host); - scsi_deactivate_tcq(sdev, hba->nutrs); /* Drop the reference as it won't be needed anymore */ if (ufshcd_scsi_to_upiu_lun(sdev->lun) == UFS_UPIU_UFS_DEVICE_WLUN) hba->sdev_ufs_device = NULL; @@ -4235,6 +4235,7 @@ 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, }; static int ufshcd_config_vreg_load(struct device *dev, struct ufs_vreg *vreg, diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index e30932f989a1..120a851df0d7 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -407,7 +407,6 @@ static int tcm_loop_slave_alloc(struct scsi_device *sd) static int tcm_loop_slave_configure(struct scsi_device *sd) { if (sd->tagged_supported) { - scsi_activate_tcq(sd, sd->queue_depth); scsi_adjust_queue_depth(sd, MSG_SIMPLE_TAG, sd->host->cmd_per_lun); } else { @@ -437,6 +436,7 @@ static struct scsi_host_template tcm_loop_driver_template = { .slave_alloc = tcm_loop_slave_alloc, .slave_configure = tcm_loop_slave_configure, .module = THIS_MODULE, + .use_blk_tags = 1, }; static int tcm_loop_driver_probe(struct device *dev) diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index 1bc5df4200a7..ee69b82fc7d1 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -799,8 +799,7 @@ static int uas_slave_configure(struct scsi_device *sdev) if (devinfo->flags & US_FL_NO_REPORT_OPCODES) sdev->no_report_opcodes = 1; - scsi_set_tag_type(sdev, MSG_ORDERED_TAG); - scsi_activate_tcq(sdev, devinfo->qdepth - 2); + scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, devinfo->qdepth - 2); return 0; } @@ -824,6 +823,7 @@ static struct scsi_host_template uas_host_template = { * allocator. */ .disable_blk_mq = true, + .use_blk_tags = 1, }; #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \ diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index d6bd65294009..61a81bf77e28 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -421,6 +421,11 @@ struct scsi_host_template { */ unsigned char present; + /* + * Let the block layer assigns tags to all commands. + */ + unsigned use_blk_tags:1; + /* * This specifies the mode that a LLD supports. */ diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h index 005f68da5adb..fe4a70299419 100644 --- a/include/scsi/scsi_tcq.h +++ b/include/scsi/scsi_tcq.h @@ -45,40 +45,6 @@ static inline void scsi_set_tag_type(struct scsi_device *sdev, int tag) break; } } -/** - * scsi_activate_tcq - turn on tag command queueing - * @SDpnt: device to turn on TCQ for - * @depth: queue depth - * - * Notes: - * Eventually, I hope depth would be the maximum depth - * the device could cope with and the real queue depth - * would be adjustable from 0 to depth. - **/ -static inline void scsi_activate_tcq(struct scsi_device *sdev, int depth) -{ - if (!sdev->tagged_supported) - return; - - if (shost_use_blk_mq(sdev->host)) - queue_flag_set_unlocked(QUEUE_FLAG_QUEUED, sdev->request_queue); - else if (!blk_queue_tagged(sdev->request_queue)) - blk_queue_init_tags(sdev->request_queue, depth, - sdev->host->bqt); - - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth); -} - -/** - * scsi_deactivate_tcq - turn off tag command queueing - * @SDpnt: device to turn off TCQ for - **/ -static inline void scsi_deactivate_tcq(struct scsi_device *sdev, int depth) -{ - if (blk_queue_tagged(sdev->request_queue)) - blk_queue_free_tags(sdev->request_queue); - scsi_adjust_queue_depth(sdev, 0, depth); -} static inline struct scsi_cmnd *scsi_mq_find_tag(struct Scsi_Host *shost, int unique_tag) -- cgit v1.2.3-59-g8ed1b From c8b09f6fb67df7fc1b51ced1037fa9b677428149 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 3 Nov 2014 20:15:14 +0100 Subject: scsi: don't set tagging state from scsi_adjust_queue_depth Remove the tagged argument from scsi_adjust_queue_depth, and just let it handle the queue depth. For most drivers those two are fairly separate, given that most modern drivers don't care about the SCSI "tagged" status of a command at all, and many old drivers allow queuing of multiple untagged commands in the driver. Instead we start out with the ->simple_tags flag set before calling ->slave_configure, which is how all drivers actually looking at ->simple_tags except for one worke anyway. The one other case looks broken, but I've kept the behavior as-is for now. Except for that we only change ->simple_tags from the ->change_queue_type, and when rejecting a tag message in a single driver, so keeping this churn out of scsi_adjust_queue_depth is a clear win. Now that the usage of scsi_adjust_queue_depth is more obvious we can also remove all the trivial instances in ->slave_alloc or ->slave_configure that just set it to the cmd_per_lun default. Signed-off-by: Christoph Hellwig Reviewed-by: Mike Christie Reviewed-by: Hannes Reinecke Reviewed-by: Martin K. Petersen --- Documentation/scsi/scsi_mid_low_api.txt | 12 ++++------ drivers/ata/libata-scsi.c | 4 ++-- drivers/infiniband/ulp/srp/ib_srp.c | 2 +- drivers/message/fusion/mptscsih.c | 2 +- drivers/s390/scsi/zfcp_scsi.c | 8 +++---- drivers/scsi/3w-9xxx.c | 2 +- drivers/scsi/3w-sas.c | 2 +- drivers/scsi/3w-xxxx.c | 2 +- drivers/scsi/53c700.c | 17 ++++++------- drivers/scsi/BusLogic.c | 4 ++-- drivers/scsi/aacraid/linit.c | 8 +++---- drivers/scsi/advansys.c | 7 ++---- drivers/scsi/aic7xxx/aic79xx_osm.c | 7 ++---- drivers/scsi/aic7xxx/aic7xxx_osm.c | 8 ++----- drivers/scsi/arcmsr/arcmsr_hba.c | 2 +- drivers/scsi/bfa/bfad_im.c | 3 +-- drivers/scsi/csiostor/csio_scsi.c | 2 +- drivers/scsi/dpt_i2o.c | 4 +--- drivers/scsi/eata.c | 8 +++---- drivers/scsi/esas2r/esas2r.h | 3 --- drivers/scsi/esas2r/esas2r_main.c | 29 +--------------------- drivers/scsi/esp_scsi.c | 17 ++----------- drivers/scsi/fnic/fnic_main.c | 2 +- drivers/scsi/gdth.c | 1 - drivers/scsi/hpsa.c | 2 +- drivers/scsi/hptiop.c | 2 +- drivers/scsi/ibmvscsi/ibmvfc.c | 8 +------ drivers/scsi/ibmvscsi/ibmvscsi.c | 3 +-- drivers/scsi/ipr.c | 8 +++---- drivers/scsi/ips.c | 2 +- drivers/scsi/libfc/fc_fcp.c | 6 ++--- drivers/scsi/libiscsi.c | 4 ++-- drivers/scsi/libsas/sas_scsi_host.c | 20 +++++----------- drivers/scsi/lpfc/lpfc_scsi.c | 4 ++-- drivers/scsi/megaraid/megaraid_mbox.c | 2 +- drivers/scsi/megaraid/megaraid_sas_base.c | 3 +-- drivers/scsi/mpt2sas/mpt2sas_scsih.c | 2 +- drivers/scsi/mpt3sas/mpt3sas_scsih.c | 2 +- drivers/scsi/ncr53c8xx.c | 5 +--- drivers/scsi/pmcraid.c | 40 ++++++------------------------- drivers/scsi/qla1280.c | 5 ++-- drivers/scsi/qla2xxx/qla_os.c | 6 ++--- drivers/scsi/qla4xxx/ql4_os.c | 2 +- drivers/scsi/scsi.c | 25 ++++--------------- drivers/scsi/scsi_debug.c | 7 ++---- drivers/scsi/scsi_scan.c | 6 +++-- drivers/scsi/stex.c | 2 -- drivers/scsi/storvsc_drv.c | 3 +-- drivers/scsi/sym53c8xx_2/sym_glue.c | 4 +--- drivers/scsi/tmscsim.c | 9 ++++++- drivers/scsi/u14-34f.c | 10 ++++---- drivers/scsi/ufs/ufshcd.c | 4 ++-- drivers/scsi/virtio_scsi.c | 4 +--- drivers/scsi/vmw_pvscsi.c | 2 +- drivers/target/loopback/tcm_loop.c | 18 ++------------ drivers/usb/storage/uas.c | 2 +- include/scsi/scsi_device.h | 2 +- 57 files changed, 120 insertions(+), 260 deletions(-) (limited to 'drivers/scsi/tmscsim.c') diff --git a/Documentation/scsi/scsi_mid_low_api.txt b/Documentation/scsi/scsi_mid_low_api.txt index a67194209581..bee7d86b9dcc 100644 --- a/Documentation/scsi/scsi_mid_low_api.txt +++ b/Documentation/scsi/scsi_mid_low_api.txt @@ -271,9 +271,9 @@ init_this_scsi_driver() ----+ slave_destroy() *** ------------------------------------------------------------ -The mid level invokes scsi_adjust_queue_depth() with tagged queuing off and -"cmd_per_lun" for that host as the queue length. These settings can be -overridden by a slave_configure() supplied by the LLD. +The mid level invokes scsi_adjust_queue_depth() with "cmd_per_lun" for that +host as the queue length. These settings can be overridden by a +slave_configure() supplied by the LLD. *** For scsi devices that the mid level tries to scan but do not respond, a slave_alloc(), slave_destroy() pair is called. @@ -438,9 +438,6 @@ int scsi_add_host(struct Scsi_Host *shost, struct device * dev) /** * scsi_adjust_queue_depth - allow LLD to change queue depth on a SCSI device * @sdev: pointer to SCSI device to change queue depth on - * @tagged: 0 - no tagged queuing - * MSG_SIMPLE_TAG - simple tagged queuing - * MSG_ORDERED_TAG - ordered tagged queuing * @tags Number of tags allowed if tagged queuing enabled, * or number of commands the LLD can queue up * in non-tagged mode (as per cmd_per_lun). @@ -456,8 +453,7 @@ int scsi_add_host(struct Scsi_Host *shost, struct device * dev) * Defined in: drivers/scsi/scsi.c [see source code for more notes] * **/ -void scsi_adjust_queue_depth(struct scsi_device * sdev, int tagged, - int tags) +void scsi_adjust_queue_depth(struct scsi_device *sdev, int tags) /** diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 0586f66d70fa..c8bb6abbf12c 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -1164,7 +1164,7 @@ static int ata_scsi_dev_config(struct scsi_device *sdev, depth = min(sdev->host->can_queue, ata_id_queue_depth(dev->id)); depth = min(ATA_MAX_QUEUE - 1, depth); - scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, depth); + scsi_adjust_queue_depth(sdev, depth); } blk_queue_flush_queueable(q, false); @@ -1282,7 +1282,7 @@ int __ata_change_queue_depth(struct ata_port *ap, struct scsi_device *sdev, if (sdev->queue_depth == queue_depth) return -EINVAL; - scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, queue_depth); + scsi_adjust_queue_depth(sdev, queue_depth); return queue_depth; } diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index 51670d75ab78..023a66f5ca14 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -2278,7 +2278,7 @@ srp_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) max_depth = 1; if (qdepth > max_depth) qdepth = max_depth; - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + scsi_adjust_queue_depth(sdev, qdepth); } else if (reason == SCSI_QDEPTH_QFULL) scsi_track_queue_full(sdev, qdepth); else diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c index c0d84a09db9a..dee06d6f0b68 100644 --- a/drivers/message/fusion/mptscsih.c +++ b/drivers/message/fusion/mptscsih.c @@ -2347,7 +2347,7 @@ mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) if (qdepth > max_depth) qdepth = max_depth; - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + scsi_adjust_queue_depth(sdev, qdepth); return sdev->queue_depth; } diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index 7b353647cb90..b5dfa51f396f 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -37,13 +37,13 @@ static int zfcp_scsi_change_queue_depth(struct scsi_device *sdev, int depth, { switch (reason) { case SCSI_QDEPTH_DEFAULT: - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth); + scsi_adjust_queue_depth(sdev, depth); break; case SCSI_QDEPTH_QFULL: scsi_track_queue_full(sdev, depth); break; case SCSI_QDEPTH_RAMP_UP: - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth); + scsi_adjust_queue_depth(sdev, depth); break; default: return -EOPNOTSUPP; @@ -66,9 +66,7 @@ static void zfcp_scsi_slave_destroy(struct scsi_device *sdev) static int zfcp_scsi_slave_configure(struct scsi_device *sdp) { if (sdp->tagged_supported) - scsi_adjust_queue_depth(sdp, MSG_SIMPLE_TAG, default_depth); - else - scsi_adjust_queue_depth(sdp, 0, 1); + scsi_adjust_queue_depth(sdp, default_depth); return 0; } diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c index 0a7325361d29..02021f5ca866 100644 --- a/drivers/scsi/3w-9xxx.c +++ b/drivers/scsi/3w-9xxx.c @@ -198,7 +198,7 @@ static int twa_change_queue_depth(struct scsi_device *sdev, int queue_depth, if (queue_depth > TW_Q_LENGTH-2) queue_depth = TW_Q_LENGTH-2; - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth); + scsi_adjust_queue_depth(sdev, queue_depth); return queue_depth; } /* End twa_change_queue_depth() */ diff --git a/drivers/scsi/3w-sas.c b/drivers/scsi/3w-sas.c index 6da6cec9a651..ac0c2544a470 100644 --- a/drivers/scsi/3w-sas.c +++ b/drivers/scsi/3w-sas.c @@ -200,7 +200,7 @@ static int twl_change_queue_depth(struct scsi_device *sdev, int queue_depth, if (queue_depth > TW_Q_LENGTH-2) queue_depth = TW_Q_LENGTH-2; - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth); + scsi_adjust_queue_depth(sdev, queue_depth); return queue_depth; } /* End twl_change_queue_depth() */ diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c index 752624e6bc00..1ec9ad92b6c3 100644 --- a/drivers/scsi/3w-xxxx.c +++ b/drivers/scsi/3w-xxxx.c @@ -532,7 +532,7 @@ static int tw_change_queue_depth(struct scsi_device *sdev, int queue_depth, if (queue_depth > TW_Q_LENGTH-2) queue_depth = TW_Q_LENGTH-2; - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth); + scsi_adjust_queue_depth(sdev, queue_depth); return queue_depth; } /* End tw_change_queue_depth() */ diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c index 497cbb1efd4b..d7557b932113 100644 --- a/drivers/scsi/53c700.c +++ b/drivers/scsi/53c700.c @@ -902,8 +902,10 @@ process_message(struct Scsi_Host *host, struct NCR_700_Host_Parameters *hostdata /* we're done negotiating */ NCR_700_set_tag_neg_state(SCp->device, NCR_700_FINISHED_TAG_NEGOTIATION); hostdata->tag_negotiated &= ~(1<device->tagged_supported = 0; - scsi_adjust_queue_depth(SCp->device, 0, host->cmd_per_lun); + scsi_adjust_queue_depth(SCp->device, host->cmd_per_lun); + scsi_set_tag_type(SCp->device, 0); } else { shost_printk(KERN_WARNING, host, "(%d:%d) Unexpected REJECT Message %s\n", @@ -2050,12 +2052,10 @@ NCR_700_slave_configure(struct scsi_device *SDp) /* to do here: allocate memory; build a queue_full list */ if(SDp->tagged_supported) { - scsi_adjust_queue_depth(SDp, MSG_ORDERED_TAG, NCR_700_DEFAULT_TAGS); + scsi_adjust_queue_depth(SDp, NCR_700_DEFAULT_TAGS); NCR_700_set_tag_neg_state(SDp, NCR_700_START_TAG_NEGOTIATION); - } else { - /* initialise to default depth */ - scsi_adjust_queue_depth(SDp, 0, SDp->host->cmd_per_lun); } + if(hostdata->fast) { /* Find the correct offset and period via domain validation */ if (!spi_initial_dv(SDp->sdev_target)) @@ -2083,7 +2083,7 @@ NCR_700_change_queue_depth(struct scsi_device *SDp, int depth, int reason) if (depth > NCR_700_MAX_TAGS) depth = NCR_700_MAX_TAGS; - scsi_adjust_queue_depth(SDp, scsi_get_tag_type(SDp), depth); + scsi_adjust_queue_depth(SDp, depth); return depth; } @@ -2101,15 +2101,16 @@ static int NCR_700_change_queue_type(struct scsi_device *SDp, int tag_type) if (change_tag) scsi_target_quiesce(SDp->sdev_target); + scsi_set_tag_type(SDp, tag_type); if (!tag_type) { /* shift back to the default unqueued number of commands * (the user can still raise this) */ - scsi_adjust_queue_depth(SDp, 0, SDp->host->cmd_per_lun); + scsi_adjust_queue_depth(SDp, SDp->host->cmd_per_lun); hostdata->tag_negotiated &= ~(1 << sdev_id(SDp)); } else { /* Here, we cleared the negotiation flag above, so this * will force the driver to renegotiate */ - scsi_adjust_queue_depth(SDp, tag_type, SDp->queue_depth); + scsi_adjust_queue_depth(SDp, SDp->queue_depth); if (change_tag) NCR_700_set_tag_neg_state(SDp, NCR_700_START_TAG_NEGOTIATION); } diff --git a/drivers/scsi/BusLogic.c b/drivers/scsi/BusLogic.c index 64c75143c89a..5aa476b6b8a8 100644 --- a/drivers/scsi/BusLogic.c +++ b/drivers/scsi/BusLogic.c @@ -2327,12 +2327,12 @@ static int blogic_slaveconfig(struct scsi_device *dev) if (qdepth == 0) qdepth = BLOGIC_MAX_AUTO_TAG_DEPTH; adapter->qdepth[tgt_id] = qdepth; - scsi_adjust_queue_depth(dev, MSG_SIMPLE_TAG, qdepth); + scsi_adjust_queue_depth(dev, qdepth); } else { adapter->tagq_ok &= ~(1 << tgt_id); qdepth = adapter->untag_qdepth; adapter->qdepth[tgt_id] = qdepth; - scsi_adjust_queue_depth(dev, 0, qdepth); + scsi_adjust_queue_depth(dev, qdepth); } qdepth = 0; for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index a759cb2d4b15..41b9c68bca67 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -462,9 +462,9 @@ static int aac_slave_configure(struct scsi_device *sdev) depth = 256; else if (depth < 2) depth = 2; - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, depth); + scsi_adjust_queue_depth(sdev, depth); } else - scsi_adjust_queue_depth(sdev, 0, 1); + scsi_adjust_queue_depth(sdev, 1); return 0; } @@ -504,9 +504,9 @@ static int aac_change_queue_depth(struct scsi_device *sdev, int depth, depth = 256; else if (depth < 2) depth = 2; - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, depth); + scsi_adjust_queue_depth(sdev, depth); } else - scsi_adjust_queue_depth(sdev, 0, 1); + scsi_adjust_queue_depth(sdev, 1); return sdev->queue_depth; } diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 43761c1c46f0..ae4840e4c1c5 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -7706,7 +7706,7 @@ advansys_narrow_slave_configure(struct scsi_device *sdev, ASC_DVC_VAR *asc_dvc) asc_dvc->cfg->can_tagged_qng |= tid_bit; asc_dvc->use_tagged_qng |= tid_bit; } - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, + scsi_adjust_queue_depth(sdev, asc_dvc->max_dvc_qng[sdev->id]); } } else { @@ -7714,7 +7714,6 @@ advansys_narrow_slave_configure(struct scsi_device *sdev, ASC_DVC_VAR *asc_dvc) asc_dvc->cfg->can_tagged_qng &= ~tid_bit; asc_dvc->use_tagged_qng &= ~tid_bit; } - scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); } if ((sdev->lun == 0) && @@ -7849,10 +7848,8 @@ advansys_wide_slave_configure(struct scsi_device *sdev, ADV_DVC_VAR *adv_dvc) } if ((adv_dvc->tagqng_able & tidmask) && sdev->tagged_supported) { - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, + scsi_adjust_queue_depth(sdev, adv_dvc->max_dvc_qng); - } else { - scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); } } diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c index 9fd6b5618b25..80cb4fd7caaa 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm.c +++ b/drivers/scsi/aic7xxx/aic79xx_osm.c @@ -1469,11 +1469,8 @@ ahd_platform_set_tags(struct ahd_softc *ahd, struct scsi_device *sdev, switch ((dev->flags & (AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED))) { case AHD_DEV_Q_BASIC: - scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TASK, - dev->openings + dev->active); - break; case AHD_DEV_Q_TAGGED: - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TASK, + scsi_adjust_queue_depth(sdev, dev->openings + dev->active); break; default: @@ -1483,7 +1480,7 @@ ahd_platform_set_tags(struct ahd_softc *ahd, struct scsi_device *sdev, * serially on the controller/device. This should * remove some latency. */ - scsi_adjust_queue_depth(sdev, 0, 1); + scsi_adjust_queue_depth(sdev, 1); break; } } diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c index f18b6d69d3fb..a6a27d5398dd 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -1335,13 +1335,9 @@ ahc_platform_set_tags(struct ahc_softc *ahc, struct scsi_device *sdev, } switch ((dev->flags & (AHC_DEV_Q_BASIC|AHC_DEV_Q_TAGGED))) { case AHC_DEV_Q_BASIC: - scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TASK, - dev->openings + dev->active); - break; case AHC_DEV_Q_TAGGED: - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TASK, + scsi_adjust_queue_depth(sdev, dev->openings + dev->active); - break; default: /* * We allow the OS to queue 2 untagged transactions to @@ -1349,7 +1345,7 @@ ahc_platform_set_tags(struct ahc_softc *ahc, struct scsi_device *sdev, * serially on the controller/device. This should * remove some latency. */ - scsi_adjust_queue_depth(sdev, 0, 2); + scsi_adjust_queue_depth(sdev, 2); break; } } diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c index 0b44fb5ee485..209f77162d06 100644 --- a/drivers/scsi/arcmsr/arcmsr_hba.c +++ b/drivers/scsi/arcmsr/arcmsr_hba.c @@ -122,7 +122,7 @@ static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev, if (queue_depth > ARCMSR_MAX_CMD_PERLUN) queue_depth = ARCMSR_MAX_CMD_PERLUN; - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth); + scsi_adjust_queue_depth(sdev, queue_depth); return queue_depth; } diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c index d8e43c81d19b..87b09cd232cc 100644 --- a/drivers/scsi/bfa/bfad_im.c +++ b/drivers/scsi/bfa/bfad_im.c @@ -776,7 +776,7 @@ bfad_thread_workq(struct bfad_s *bfad) static int bfad_im_slave_configure(struct scsi_device *sdev) { - scsi_adjust_queue_depth(sdev, 0, bfa_lun_queue_depth); + scsi_adjust_queue_depth(sdev, bfa_lun_queue_depth); return 0; } @@ -867,7 +867,6 @@ bfad_ramp_up_qdepth(struct bfad_itnim_s *itnim, struct scsi_device *sdev) if (tmp_sdev->id != sdev->id) continue; scsi_adjust_queue_depth(tmp_sdev, - MSG_SIMPLE_TAG, tmp_sdev->queue_depth + 1); itnim->last_ramp_up_time = jiffies; diff --git a/drivers/scsi/csiostor/csio_scsi.c b/drivers/scsi/csiostor/csio_scsi.c index f73155db80a3..44a8cc51428f 100644 --- a/drivers/scsi/csiostor/csio_scsi.c +++ b/drivers/scsi/csiostor/csio_scsi.c @@ -2241,7 +2241,7 @@ csio_slave_alloc(struct scsi_device *sdev) static int csio_slave_configure(struct scsi_device *sdev) { - scsi_adjust_queue_depth(sdev, 0, csio_lun_qdepth); + scsi_adjust_queue_depth(sdev, csio_lun_qdepth); return 0; } diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c index 072f0ec2851e..1af8d54bcded 100644 --- a/drivers/scsi/dpt_i2o.c +++ b/drivers/scsi/dpt_i2o.c @@ -415,10 +415,8 @@ static int adpt_slave_configure(struct scsi_device * device) pHba = (adpt_hba *) host->hostdata[0]; if (host->can_queue && device->tagged_supported) { - scsi_adjust_queue_depth(device, MSG_SIMPLE_TAG, + scsi_adjust_queue_depth(device, host->can_queue - 1); - } else { - scsi_adjust_queue_depth(device, 0, 1); } return 0; } diff --git a/drivers/scsi/eata.c b/drivers/scsi/eata.c index 943ad3a19661..bc0f918f1729 100644 --- a/drivers/scsi/eata.c +++ b/drivers/scsi/eata.c @@ -946,20 +946,18 @@ static int eata2x_slave_configure(struct scsi_device *dev) if (TLDEV(dev->type) && dev->tagged_supported) { if (tag_mode == TAG_SIMPLE) { - scsi_adjust_queue_depth(dev, MSG_SIMPLE_TAG, tqd); tag_suffix = ", simple tags"; } else if (tag_mode == TAG_ORDERED) { - scsi_adjust_queue_depth(dev, MSG_ORDERED_TAG, tqd); tag_suffix = ", ordered tags"; } else { - scsi_adjust_queue_depth(dev, 0, tqd); tag_suffix = ", no tags"; } + scsi_adjust_queue_depth(dev, tqd); } else if (TLDEV(dev->type) && linked_comm) { - scsi_adjust_queue_depth(dev, 0, tqd); + scsi_adjust_queue_depth(dev, tqd); tag_suffix = ", untagged"; } else { - scsi_adjust_queue_depth(dev, 0, utqd); + scsi_adjust_queue_depth(dev, utqd); tag_suffix = ""; } diff --git a/drivers/scsi/esas2r/esas2r.h b/drivers/scsi/esas2r/esas2r.h index 20ab211983f2..1941d837f6f2 100644 --- a/drivers/scsi/esas2r/esas2r.h +++ b/drivers/scsi/esas2r/esas2r.h @@ -972,9 +972,6 @@ u8 handle_hba_ioctl(struct esas2r_adapter *a, struct atto_ioctl *ioctl_hba); int esas2r_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd); int esas2r_show_info(struct seq_file *m, struct Scsi_Host *sh); -int esas2r_slave_alloc(struct scsi_device *dev); -int esas2r_slave_configure(struct scsi_device *dev); -void esas2r_slave_destroy(struct scsi_device *dev); int esas2r_change_queue_depth(struct scsi_device *dev, int depth, int reason); long esas2r_proc_ioctl(struct file *fp, unsigned int cmd, unsigned long arg); diff --git a/drivers/scsi/esas2r/esas2r_main.c b/drivers/scsi/esas2r/esas2r_main.c index a020b09ba347..30fce64faf75 100644 --- a/drivers/scsi/esas2r/esas2r_main.c +++ b/drivers/scsi/esas2r/esas2r_main.c @@ -254,9 +254,6 @@ static struct scsi_host_template driver_template = { .use_clustering = ENABLE_CLUSTERING, .emulated = 0, .proc_name = ESAS2R_DRVR_NAME, - .slave_configure = esas2r_slave_configure, - .slave_alloc = esas2r_slave_alloc, - .slave_destroy = esas2r_slave_destroy, .change_queue_depth = esas2r_change_queue_depth, .change_queue_type = scsi_change_queue_type, .max_sectors = 0xFFFF, @@ -1264,35 +1261,11 @@ int esas2r_change_queue_depth(struct scsi_device *dev, int depth, int reason) { esas2r_log(ESAS2R_LOG_INFO, "change_queue_depth %p, %d", dev, depth); - scsi_adjust_queue_depth(dev, scsi_get_tag_type(dev), depth); + scsi_adjust_queue_depth(dev, depth); return dev->queue_depth; } -int esas2r_slave_alloc(struct scsi_device *dev) -{ - return 0; -} - -int esas2r_slave_configure(struct scsi_device *dev) -{ - esas2r_log_dev(ESAS2R_LOG_INFO, &(dev->sdev_gendev), - "esas2r_slave_configure()"); - - if (dev->tagged_supported) - scsi_adjust_queue_depth(dev, MSG_SIMPLE_TAG, cmd_per_lun); - else - scsi_adjust_queue_depth(dev, 0, cmd_per_lun); - - return 0; -} - -void esas2r_slave_destroy(struct scsi_device *dev) -{ - esas2r_log_dev(ESAS2R_LOG_INFO, &(dev->sdev_gendev), - "esas2r_slave_destroy()"); -} - void esas2r_log_request_failure(struct esas2r_adapter *a, struct esas2r_request *rq) { diff --git a/drivers/scsi/esp_scsi.c b/drivers/scsi/esp_scsi.c index 66b6ce10b259..38c23e0b73af 100644 --- a/drivers/scsi/esp_scsi.c +++ b/drivers/scsi/esp_scsi.c @@ -2402,27 +2402,14 @@ static int esp_slave_configure(struct scsi_device *dev) { struct esp *esp = shost_priv(dev->host); struct esp_target_data *tp = &esp->target[dev->id]; - int goal_tags, queue_depth; - - goal_tags = 0; if (dev->tagged_supported) { /* XXX make this configurable somehow XXX */ - goal_tags = ESP_DEFAULT_TAGS; + int goal_tags = min(ESP_DEFAULT_TAGS, ESP_MAX_TAG); - if (goal_tags > ESP_MAX_TAG) - goal_tags = ESP_MAX_TAG; + scsi_adjust_queue_depth(dev, goal_tags); } - queue_depth = goal_tags; - if (queue_depth < dev->host->cmd_per_lun) - queue_depth = dev->host->cmd_per_lun; - - if (goal_tags) { - scsi_adjust_queue_depth(dev, MSG_ORDERED_TAG, queue_depth); - } else { - scsi_adjust_queue_depth(dev, 0, queue_depth); - } tp->flags |= ESP_TGT_DISCONNECT; if (!spi_initial_dv(dev->sdev_target)) diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c index 2a6c98b7d4db..0f29e3f89b26 100644 --- a/drivers/scsi/fnic/fnic_main.c +++ b/drivers/scsi/fnic/fnic_main.c @@ -100,7 +100,7 @@ static int fnic_slave_alloc(struct scsi_device *sdev) if (!rport || fc_remote_port_chkready(rport)) return -ENXIO; - scsi_adjust_queue_depth(sdev, 0, fnic_max_qdepth); + scsi_adjust_queue_depth(sdev, fnic_max_qdepth); return 0; } diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c index 0f1ae13ce7c7..4ebbeae161e2 100644 --- a/drivers/scsi/gdth.c +++ b/drivers/scsi/gdth.c @@ -4661,7 +4661,6 @@ static void gdth_flush(gdth_ha_str *ha) /* configure lun */ static int gdth_slave_configure(struct scsi_device *sdev) { - scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); sdev->skip_ms_page_3f = 1; sdev->skip_ms_page_8 = 1; return 0; diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index cef5d49b59cd..18ea2e16e34f 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -4165,7 +4165,7 @@ static int hpsa_change_queue_depth(struct scsi_device *sdev, else if (qdepth > h->nr_cmds) qdepth = h->nr_cmds; - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + scsi_adjust_queue_depth(sdev, qdepth); return sdev->queue_depth; } diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c index dedb62c21b29..151893148abd 100644 --- a/drivers/scsi/hptiop.c +++ b/drivers/scsi/hptiop.c @@ -1127,7 +1127,7 @@ static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev, if (queue_depth > hba->max_requests) queue_depth = hba->max_requests; - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth); + scsi_adjust_queue_depth(sdev, queue_depth); return queue_depth; } diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 4723d89df5ac..147b80e07b00 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -2887,12 +2887,6 @@ static int ibmvfc_slave_configure(struct scsi_device *sdev) spin_lock_irqsave(shost->host_lock, flags); if (sdev->type == TYPE_DISK) sdev->allow_restart = 1; - - if (sdev->tagged_supported) - scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, - sdev->queue_depth); - else - scsi_adjust_queue_depth(sdev, 0, sdev->queue_depth); spin_unlock_irqrestore(shost->host_lock, flags); return 0; } @@ -2915,7 +2909,7 @@ static int ibmvfc_change_queue_depth(struct scsi_device *sdev, int qdepth, if (qdepth > IBMVFC_MAX_CMDS_PER_LUN) qdepth = IBMVFC_MAX_CMDS_PER_LUN; - scsi_adjust_queue_depth(sdev, 0, qdepth); + scsi_adjust_queue_depth(sdev, qdepth); return sdev->queue_depth; } diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c index 7b23f21f22f1..e8c3cdf0d03b 100644 --- a/drivers/scsi/ibmvscsi/ibmvscsi.c +++ b/drivers/scsi/ibmvscsi/ibmvscsi.c @@ -1929,7 +1929,6 @@ static int ibmvscsi_slave_configure(struct scsi_device *sdev) blk_queue_rq_timeout(sdev->request_queue, 120 * HZ); } spin_unlock_irqrestore(shost->host_lock, lock_flags); - scsi_adjust_queue_depth(sdev, 0, shost->cmd_per_lun); return 0; } @@ -1951,7 +1950,7 @@ static int ibmvscsi_change_queue_depth(struct scsi_device *sdev, int qdepth, if (qdepth > IBMVSCSI_MAX_CMDS_PER_LUN) qdepth = IBMVSCSI_MAX_CMDS_PER_LUN; - scsi_adjust_queue_depth(sdev, 0, qdepth); + scsi_adjust_queue_depth(sdev, qdepth); return sdev->queue_depth; } diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index f84fcb9a6ed7..256ef98f5c29 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -4344,7 +4344,7 @@ static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth, qdepth = IPR_MAX_CMD_PER_ATA_LUN; spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + scsi_adjust_queue_depth(sdev, qdepth); return sdev->queue_depth; } @@ -4751,10 +4751,10 @@ static int ipr_slave_configure(struct scsi_device *sdev) spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); if (ap) { - scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN); + scsi_adjust_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN); ata_sas_slave_configure(sdev, ap); - } else - scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); + } + if (ioa_cfg->sis64) sdev_printk(KERN_INFO, sdev, "Resource path: %s\n", ipr_format_res_path(ioa_cfg, diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c index e5afc3884d74..454741a8da45 100644 --- a/drivers/scsi/ips.c +++ b/drivers/scsi/ips.c @@ -1210,7 +1210,7 @@ ips_slave_configure(struct scsi_device * SDptr) min = ha->max_cmds / 2; if (ha->enq->ucLogDriveCount <= 2) min = ha->max_cmds - 1; - scsi_adjust_queue_depth(SDptr, MSG_ORDERED_TAG, min); + scsi_adjust_queue_depth(SDptr, min); } SDptr->skip_ms_page_8 = 1; diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c index d4bb642f2681..bf954ee050f8 100644 --- a/drivers/scsi/libfc/fc_fcp.c +++ b/drivers/scsi/libfc/fc_fcp.c @@ -2160,7 +2160,7 @@ int fc_slave_alloc(struct scsi_device *sdev) if (!rport || fc_remote_port_chkready(rport)) return -ENXIO; - scsi_adjust_queue_depth(sdev, 0, FC_FCP_DFLT_QUEUE_DEPTH); + scsi_adjust_queue_depth(sdev, FC_FCP_DFLT_QUEUE_DEPTH); return 0; } EXPORT_SYMBOL(fc_slave_alloc); @@ -2175,13 +2175,13 @@ int fc_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) { switch (reason) { case SCSI_QDEPTH_DEFAULT: - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + scsi_adjust_queue_depth(sdev, qdepth); break; case SCSI_QDEPTH_QFULL: scsi_track_queue_full(sdev, qdepth); break; case SCSI_QDEPTH_RAMP_UP: - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + scsi_adjust_queue_depth(sdev, qdepth); break; default: return -EOPNOTSUPP; diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 0d8bc6c66650..d521624dedfb 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -1775,13 +1775,13 @@ int iscsi_change_queue_depth(struct scsi_device *sdev, int depth, int reason) { switch (reason) { case SCSI_QDEPTH_DEFAULT: - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth); + scsi_adjust_queue_depth(sdev, depth); break; case SCSI_QDEPTH_QFULL: scsi_track_queue_full(sdev, depth); break; case SCSI_QDEPTH_RAMP_UP: - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth); + scsi_adjust_queue_depth(sdev, depth); break; default: return -EOPNOTSUPP; diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c index eee21a060d93..56d698af073d 100644 --- a/drivers/scsi/libsas/sas_scsi_host.c +++ b/drivers/scsi/libsas/sas_scsi_host.c @@ -940,13 +940,13 @@ int sas_slave_configure(struct scsi_device *scsi_dev) sas_read_port_mode_page(scsi_dev); if (scsi_dev->tagged_supported) { - scsi_adjust_queue_depth(scsi_dev, MSG_SIMPLE_TAG, SAS_DEF_QD); + scsi_adjust_queue_depth(scsi_dev, SAS_DEF_QD); } else { SAS_DPRINTK("device %llx, LUN %llx doesn't support " "TCQ\n", SAS_ADDR(dev->sas_addr), scsi_dev->lun); scsi_dev->tagged_supported = 0; - scsi_adjust_queue_depth(scsi_dev, 0, 1); + scsi_adjust_queue_depth(scsi_dev, 1); } scsi_dev->allow_restart = 1; @@ -967,7 +967,7 @@ int sas_change_queue_depth(struct scsi_device *sdev, int depth, int reason) case SCSI_QDEPTH_RAMP_UP: if (!sdev->tagged_supported) depth = 1; - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth); + scsi_adjust_queue_depth(sdev, depth); break; case SCSI_QDEPTH_QFULL: scsi_track_queue_full(sdev, depth); @@ -979,19 +979,11 @@ int sas_change_queue_depth(struct scsi_device *sdev, int depth, int reason) return depth; } -int sas_change_queue_type(struct scsi_device *scsi_dev, int qt) +int sas_change_queue_type(struct scsi_device *scsi_dev, int type) { - struct domain_device *dev = sdev_to_domain_dev(scsi_dev); - - if (dev_is_sata(dev)) + if (dev_is_sata(sdev_to_domain_dev(scsi_dev))) return -EINVAL; - - if (!scsi_dev->tagged_supported) - return 0; - - scsi_adjust_queue_depth(scsi_dev, qt, scsi_dev->queue_depth); - - return qt; + return scsi_change_queue_type(scsi_dev, type); } int sas_bios_param(struct scsi_device *scsi_dev, diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index a24106a70968..8533ee9b818d 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -320,7 +320,7 @@ lpfc_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) case SCSI_QDEPTH_DEFAULT: /* change request from sysfs, fall through */ case SCSI_QDEPTH_RAMP_UP: - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + scsi_adjust_queue_depth(sdev, qdepth); break; case SCSI_QDEPTH_QFULL: if (scsi_track_queue_full(sdev, qdepth) == 0) @@ -5598,7 +5598,7 @@ lpfc_slave_configure(struct scsi_device *sdev) struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; struct lpfc_hba *phba = vport->phba; - scsi_adjust_queue_depth(sdev, 0, vport->cfg_lun_queue_depth); + scsi_adjust_queue_depth(sdev, vport->cfg_lun_queue_depth); if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { lpfc_sli_handle_fast_ring_event(phba, diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c index 531dce419c18..6b077d839f2b 100644 --- a/drivers/scsi/megaraid/megaraid_mbox.c +++ b/drivers/scsi/megaraid/megaraid_mbox.c @@ -349,7 +349,7 @@ static int megaraid_change_queue_depth(struct scsi_device *sdev, int qdepth, if (qdepth > MBOX_MAX_SCSI_CMDS) qdepth = MBOX_MAX_SCSI_CMDS; - scsi_adjust_queue_depth(sdev, 0, qdepth); + scsi_adjust_queue_depth(sdev, qdepth); return sdev->queue_depth; } diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index 5640ad1c8214..107244cebd22 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -2594,8 +2594,7 @@ static int megasas_change_queue_depth(struct scsi_device *sdev, if (queue_depth > sdev->host->can_queue) queue_depth = sdev->host->can_queue; - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), - queue_depth); + scsi_adjust_queue_depth(sdev, queue_depth); return queue_depth; } diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index 69dc166b52bc..42fef914d441 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -1222,7 +1222,7 @@ _scsih_adjust_queue_depth(struct scsi_device *sdev, int qdepth) max_depth = 1; if (qdepth > max_depth) qdepth = max_depth; - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + scsi_adjust_queue_depth(sdev, qdepth); } /** diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index d3abf254341d..b23c2e7588e5 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -1090,7 +1090,7 @@ _scsih_adjust_queue_depth(struct scsi_device *sdev, int qdepth) max_depth = 1; if (qdepth > max_depth) qdepth = max_depth; - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + scsi_adjust_queue_depth(sdev, qdepth); } /** diff --git a/drivers/scsi/ncr53c8xx.c b/drivers/scsi/ncr53c8xx.c index a7305ffc359d..9c331b7bfdcd 100644 --- a/drivers/scsi/ncr53c8xx.c +++ b/drivers/scsi/ncr53c8xx.c @@ -7997,10 +7997,7 @@ static int ncr53c8xx_slave_configure(struct scsi_device *device) if (depth_to_use > MAX_TAGS) depth_to_use = MAX_TAGS; - scsi_adjust_queue_depth(device, - (device->tagged_supported ? - MSG_SIMPLE_TAG : 0), - depth_to_use); + scsi_adjust_queue_depth(device, depth_to_use); /* ** Since the queue depth is not tunable under Linux, diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c index 71f9f59b13c6..d8b9ba251fbd 100644 --- a/drivers/scsi/pmcraid.c +++ b/drivers/scsi/pmcraid.c @@ -249,14 +249,11 @@ static int pmcraid_slave_configure(struct scsi_device *scsi_dev) PMCRAID_VSET_MAX_SECTORS); } - if (scsi_dev->tagged_supported && - (RES_IS_GSCSI(res->cfg_entry) || RES_IS_VSET(res->cfg_entry))) { - scsi_adjust_queue_depth(scsi_dev, MSG_SIMPLE_TAG, - scsi_dev->host->cmd_per_lun); - } else { - scsi_adjust_queue_depth(scsi_dev, 0, - scsi_dev->host->cmd_per_lun); - } + /* + * We never want to report TCQ support for these types of devices. + */ + if (!RES_IS_GSCSI(res->cfg_entry) && !RES_IS_VSET(res->cfg_entry)) + scsi_dev->tagged_supported = 0; return 0; } @@ -302,34 +299,11 @@ static int pmcraid_change_queue_depth(struct scsi_device *scsi_dev, int depth, if (depth > PMCRAID_MAX_CMD_PER_LUN) depth = PMCRAID_MAX_CMD_PER_LUN; - scsi_adjust_queue_depth(scsi_dev, scsi_get_tag_type(scsi_dev), depth); + scsi_adjust_queue_depth(scsi_dev, depth); return scsi_dev->queue_depth; } -/** - * pmcraid_change_queue_type - Change the device's queue type - * @scsi_dev: scsi device struct - * @tag: type of tags to use - * - * Return value: - * actual queue type set - */ -static int pmcraid_change_queue_type(struct scsi_device *scsi_dev, int tag) -{ - struct pmcraid_resource_entry *res; - - res = (struct pmcraid_resource_entry *)scsi_dev->hostdata; - if (res && scsi_dev->tagged_supported && - (RES_IS_GSCSI(res->cfg_entry) || RES_IS_VSET(res->cfg_entry))) - tag = scsi_change_queue_type(scsi_dev, tag); - else - tag = 0; - - return tag; -} - - /** * pmcraid_init_cmdblk - initializes a command block * @@ -4285,7 +4259,7 @@ static struct scsi_host_template pmcraid_host_template = { .slave_configure = pmcraid_slave_configure, .slave_destroy = pmcraid_slave_destroy, .change_queue_depth = pmcraid_change_queue_depth, - .change_queue_type = pmcraid_change_queue_type, + .change_queue_type = scsi_change_queue_type, .can_queue = PMCRAID_MAX_IO_CMD, .this_id = -1, .sg_tablesize = PMCRAID_MAX_IOADLS, diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c index 158020522dfb..adedb6ef8eec 100644 --- a/drivers/scsi/qla1280.c +++ b/drivers/scsi/qla1280.c @@ -1224,10 +1224,9 @@ qla1280_slave_configure(struct scsi_device *device) if (device->tagged_supported && (ha->bus_settings[bus].qtag_enables & (BIT_0 << target))) { - scsi_adjust_queue_depth(device, MSG_ORDERED_TAG, - ha->bus_settings[bus].hiwat); + scsi_adjust_queue_depth(device, ha->bus_settings[bus].hiwat); } else { - scsi_adjust_queue_depth(device, 0, default_depth); + scsi_adjust_queue_depth(device, default_depth); } nv->bus[bus].target[target].parameter.enable_sync = device->sdtr; diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index eb0465305f8d..33166ebec7d8 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -1405,7 +1405,7 @@ qla2xxx_slave_configure(struct scsi_device *sdev) if (IS_T10_PI_CAPABLE(vha->hw)) blk_queue_update_dma_alignment(sdev->request_queue, 0x7); - scsi_adjust_queue_depth(sdev, 0, req->max_q_depth); + scsi_adjust_queue_depth(sdev, req->max_q_depth); return 0; } @@ -1440,7 +1440,7 @@ static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth) if (req->max_q_depth <= sdev->queue_depth || req->max_q_depth < qdepth) return; - scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth); + scsi_adjust_queue_depth(sdev, qdepth); ql_dbg(ql_dbg_io, vha, 0x302a, "Queue depth adjusted-up to %d for nexus=%ld:%d:%llu.\n", @@ -1452,7 +1452,7 @@ qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) { switch (reason) { case SCSI_QDEPTH_DEFAULT: - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + scsi_adjust_queue_depth(sdev, qdepth); break; case SCSI_QDEPTH_QFULL: qla2x00_handle_queue_full(sdev, qdepth); diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index f3119c144e29..784f59e55510 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -9064,7 +9064,7 @@ static int qla4xxx_slave_alloc(struct scsi_device *sdev) if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) queue_depth = ql4xmaxqdepth; - scsi_adjust_queue_depth(sdev, 0, queue_depth); + scsi_adjust_queue_depth(sdev, queue_depth); return 0; } diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index a3426f1bf0dd..106fa2f886d2 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -744,8 +744,6 @@ void scsi_finish_command(struct scsi_cmnd *cmd) /** * scsi_adjust_queue_depth - Let low level drivers change a device's queue depth * @sdev: SCSI Device in question - * @tagged: Do we use tagged queueing (non-0) or do we treat - * this device as an untagged device (0) * @tags: Number of tags allowed if tagged queueing enabled, * or number of commands the low level driver can * queue up in non-tagged mode (as per cmd_per_lun). @@ -759,7 +757,7 @@ void scsi_finish_command(struct scsi_cmnd *cmd) * currently active and whether or not it even has the * command blocks built yet. */ -void scsi_adjust_queue_depth(struct scsi_device *sdev, int tagged, int tags) +void scsi_adjust_queue_depth(struct scsi_device *sdev, int tags) { unsigned long flags; @@ -787,20 +785,6 @@ void scsi_adjust_queue_depth(struct scsi_device *sdev, int tagged, int tags) } sdev->queue_depth = tags; - switch (tagged) { - case 0: - sdev->simple_tags = 0; - break; - case MSG_ORDERED_TAG: - case MSG_SIMPLE_TAG: - sdev->simple_tags = 1; - break; - default: - sdev->simple_tags = 0; - sdev_printk(KERN_WARNING, sdev, - "scsi_adjust_queue_depth, bad queue type, " - "disabled\n"); - } out: spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); } @@ -848,11 +832,12 @@ int scsi_track_queue_full(struct scsi_device *sdev, int depth) return 0; if (sdev->last_queue_full_depth < 8) { /* Drop back to untagged */ - scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); + scsi_set_tag_type(sdev, 0); + scsi_adjust_queue_depth(sdev, sdev->host->cmd_per_lun); return -1; } - scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, depth); + scsi_adjust_queue_depth(sdev, depth); return depth; } EXPORT_SYMBOL(scsi_track_queue_full); @@ -867,7 +852,7 @@ int scsi_change_queue_type(struct scsi_device *sdev, int tag_type) if (!sdev->tagged_supported) return 0; - scsi_adjust_queue_depth(sdev, tag_type, sdev->queue_depth); + scsi_set_tag_type(sdev, tag_type); return tag_type; } diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index 7bcace2cdd53..fce4e47becc7 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -2700,11 +2700,8 @@ static int scsi_debug_slave_configure(struct scsi_device *sdp) devip = devInfoReg(sdp); if (NULL == devip) return 1; /* no resources, will be marked offline */ - sdp->hostdata = devip; sdp->tagged_supported = 1; - if (sdp->host->cmd_per_lun) - scsi_adjust_queue_depth(sdp, DEF_TAGGED_QUEUING, - DEF_CMD_PER_LUN); + sdp->hostdata = devip; blk_queue_max_segment_size(sdp->request_queue, -1U); if (scsi_debug_no_uld) sdp->no_uld_attach = 1; @@ -4494,7 +4491,7 @@ sdebug_change_qdepth(struct scsi_device *sdev, int qdepth, int reason) /* allow to exceed max host queued_arr elements for testing */ if (qdepth > SCSI_DEBUG_CANQUEUE + 10) qdepth = SCSI_DEBUG_CANQUEUE + 10; - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + scsi_adjust_queue_depth(sdev, qdepth); } else if (reason == SCSI_QDEPTH_QFULL) scsi_track_queue_full(sdev, qdepth); else diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index 408891cb14ff..d97597e6337e 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -292,7 +292,7 @@ static struct scsi_device *scsi_alloc_sdev(struct scsi_target *starget, blk_queue_init_tags(sdev->request_queue, sdev->host->cmd_per_lun, shost->bqt); } - scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); + scsi_adjust_queue_depth(sdev, sdev->host->cmd_per_lun); scsi_sysfs_device_initialize(sdev); @@ -880,8 +880,10 @@ static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result, (inq_result[3] & 0x0f) == 1 ? " CCS" : ""); if ((sdev->scsi_level >= SCSI_2) && (inq_result[7] & 2) && - !(*bflags & BLIST_NOTQ)) + !(*bflags & BLIST_NOTQ)) { sdev->tagged_supported = 1; + sdev->simple_tags = 1; + } /* * Some devices (Texel CD ROM drives) have handshaking problems diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c index b5eae4f6ba46..2bb8a9e74dac 100644 --- a/drivers/scsi/stex.c +++ b/drivers/scsi/stex.c @@ -549,8 +549,6 @@ stex_slave_alloc(struct scsi_device *sdev) /* Cheat: usually extracted from Inquiry data */ sdev->tagged_supported = 1; - scsi_adjust_queue_depth(sdev, 0, sdev->host->can_queue); - return 0; } diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c index 37f5fd8ed765..ff8befbdf17c 100644 --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -1429,8 +1429,7 @@ static void storvsc_device_destroy(struct scsi_device *sdevice) static int storvsc_device_configure(struct scsi_device *sdevice) { - scsi_adjust_queue_depth(sdevice, MSG_SIMPLE_TAG, - STORVSC_MAX_IO_REQUESTS); + scsi_adjust_queue_depth(sdevice, STORVSC_MAX_IO_REQUESTS); blk_queue_max_segment_size(sdevice->request_queue, PAGE_SIZE); diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c index e59e6f96b725..3557b385251a 100644 --- a/drivers/scsi/sym53c8xx_2/sym_glue.c +++ b/drivers/scsi/sym53c8xx_2/sym_glue.c @@ -820,9 +820,7 @@ static int sym53c8xx_slave_configure(struct scsi_device *sdev) if (reqtags > SYM_CONF_MAX_TAG) reqtags = SYM_CONF_MAX_TAG; depth_to_use = reqtags ? reqtags : 1; - scsi_adjust_queue_depth(sdev, - sdev->tagged_supported ? MSG_SIMPLE_TAG : 0, - depth_to_use); + scsi_adjust_queue_depth(sdev, depth_to_use); lp->s.scdev_depth = depth_to_use; sym_tune_dev_queuing(tp, sdev->lun, reqtags); diff --git a/drivers/scsi/tmscsim.c b/drivers/scsi/tmscsim.c index 6369f9a282f1..844c9a048c00 100644 --- a/drivers/scsi/tmscsim.c +++ b/drivers/scsi/tmscsim.c @@ -2185,9 +2185,16 @@ static int dc390_slave_configure(struct scsi_device *sdev) struct dc390_dcb *dcb = (struct dc390_dcb *)sdev->hostdata; acb->scan_devices = 0; + + /* + * XXX: Note that while this driver used to called scsi_activate_tcq, + * it never actually set a tag type, so emulate the old behavior. + */ + scsi_set_tag_type(sdev, 0); + if (sdev->tagged_supported && (dcb->DevMode & TAG_QUEUEING_)) { dcb->SyncMode |= EN_TAG_QUEUEING; - scsi_adjust_queue_depth(sdev, 0, acb->TagMaxNum); + scsi_adjust_queue_depth(sdev, acb->TagMaxNum); } return 0; diff --git a/drivers/scsi/u14-34f.c b/drivers/scsi/u14-34f.c index d8dcf36aed11..aa0f4035afaf 100644 --- a/drivers/scsi/u14-34f.c +++ b/drivers/scsi/u14-34f.c @@ -696,25 +696,25 @@ static int u14_34f_slave_configure(struct scsi_device *dev) { if (TLDEV(dev->type) && dev->tagged_supported) if (tag_mode == TAG_SIMPLE) { - scsi_adjust_queue_depth(dev, MSG_SIMPLE_TAG, tqd); + scsi_adjust_queue_depth(dev, tqd); tag_suffix = ", simple tags"; } else if (tag_mode == TAG_ORDERED) { - scsi_adjust_queue_depth(dev, MSG_ORDERED_TAG, tqd); + scsi_adjust_queue_depth(dev, tqd); tag_suffix = ", ordered tags"; } else { - scsi_adjust_queue_depth(dev, 0, tqd); + scsi_adjust_queue_depth(dev, tqd); tag_suffix = ", no tags"; } else if (TLDEV(dev->type) && linked_comm) { - scsi_adjust_queue_depth(dev, 0, tqd); + scsi_adjust_queue_depth(dev, tqd); tag_suffix = ", untagged"; } else { - scsi_adjust_queue_depth(dev, 0, utqd); + scsi_adjust_queue_depth(dev, utqd); tag_suffix = ""; } diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 48c7f9e8f256..5eb4931e2adc 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -2696,7 +2696,7 @@ static void ufshcd_set_queue_depth(struct scsi_device *sdev) dev_dbg(hba->dev, "%s: activate tcq with queue depth %d\n", __func__, lun_qdepth); if (sdev->tagged_supported) - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), lun_qdepth); + scsi_adjust_queue_depth(sdev, lun_qdepth); } /* @@ -2808,7 +2808,7 @@ static int ufshcd_change_queue_depth(struct scsi_device *sdev, case SCSI_QDEPTH_RAMP_UP: if (!sdev->tagged_supported) depth = 1; - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth); + scsi_adjust_queue_depth(sdev, depth); break; case SCSI_QDEPTH_QFULL: scsi_track_queue_full(sdev, depth); diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c index b83846fc7859..355afbc7fde1 100644 --- a/drivers/scsi/virtio_scsi.c +++ b/drivers/scsi/virtio_scsi.c @@ -683,9 +683,7 @@ static int virtscsi_change_queue_depth(struct scsi_device *sdev, break; case SCSI_QDEPTH_RAMP_UP: /* Raise qdepth after BUSY state resolved */ case SCSI_QDEPTH_DEFAULT: /* Manual change via sysfs */ - scsi_adjust_queue_depth(sdev, - scsi_get_tag_type(sdev), - min(max_depth, qdepth)); + scsi_adjust_queue_depth(sdev, min(max_depth, qdepth)); break; default: return -EOPNOTSUPP; diff --git a/drivers/scsi/vmw_pvscsi.c b/drivers/scsi/vmw_pvscsi.c index 53a3eb6c0634..c3b4f8b3a3a5 100644 --- a/drivers/scsi/vmw_pvscsi.c +++ b/drivers/scsi/vmw_pvscsi.c @@ -522,7 +522,7 @@ static int pvscsi_change_queue_depth(struct scsi_device *sdev, max_depth = 1; if (qdepth > max_depth) qdepth = max_depth; - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + scsi_adjust_queue_depth(sdev, qdepth); if (sdev->inquiry_len > 7) sdev_printk(KERN_INFO, sdev, diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index 120a851df0d7..0ed96644ec94 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -121,13 +121,13 @@ static int tcm_loop_change_queue_depth( { switch (reason) { case SCSI_QDEPTH_DEFAULT: - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth); + scsi_adjust_queue_depth(sdev, depth); break; case SCSI_QDEPTH_QFULL: scsi_track_queue_full(sdev, depth); break; case SCSI_QDEPTH_RAMP_UP: - scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth); + scsi_adjust_queue_depth(sdev, depth); break; default: return -EOPNOTSUPP; @@ -404,19 +404,6 @@ static int tcm_loop_slave_alloc(struct scsi_device *sd) return 0; } -static int tcm_loop_slave_configure(struct scsi_device *sd) -{ - if (sd->tagged_supported) { - scsi_adjust_queue_depth(sd, MSG_SIMPLE_TAG, - sd->host->cmd_per_lun); - } else { - scsi_adjust_queue_depth(sd, 0, - sd->host->cmd_per_lun); - } - - return 0; -} - static struct scsi_host_template tcm_loop_driver_template = { .show_info = tcm_loop_show_info, .proc_name = "tcm_loopback", @@ -434,7 +421,6 @@ static struct scsi_host_template tcm_loop_driver_template = { .max_sectors = 0xFFFF, .use_clustering = DISABLE_CLUSTERING, .slave_alloc = tcm_loop_slave_alloc, - .slave_configure = tcm_loop_slave_configure, .module = THIS_MODULE, .use_blk_tags = 1, }; diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index ee69b82fc7d1..33f211b56a42 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -799,7 +799,7 @@ static int uas_slave_configure(struct scsi_device *sdev) if (devinfo->flags & US_FL_NO_REPORT_OPCODES) sdev->no_report_opcodes = 1; - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, devinfo->qdepth - 2); + scsi_adjust_queue_depth(sdev, devinfo->qdepth - 2); return 0; } diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index e8fecb5ea79a..0aeaa003c3c1 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -380,7 +380,7 @@ extern struct scsi_device *__scsi_iterate_devices(struct Scsi_Host *, #define __shost_for_each_device(sdev, shost) \ list_for_each_entry((sdev), &((shost)->__devices), siblings) -extern void scsi_adjust_queue_depth(struct scsi_device *, int, int); +extern void scsi_adjust_queue_depth(struct scsi_device *, int); extern int scsi_track_queue_full(struct scsi_device *, int); extern int scsi_set_medium_removal(struct scsi_device *, char); -- cgit v1.2.3-59-g8ed1b From db5ed4dfd5dd0142ec36ff7b335e0ec3b836b3e6 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 13 Nov 2014 15:08:42 +0100 Subject: scsi: drop reason argument from ->change_queue_depth Drop the now unused reason argument from the ->change_queue_depth method. Also add a return value to scsi_adjust_queue_depth, and rename it to scsi_change_queue_depth now that it can be used as the default ->change_queue_depth implementation. Signed-off-by: Christoph Hellwig Reviewed-by: Mike Christie Reviewed-by: Hannes Reinecke --- Documentation/scsi/scsi_mid_low_api.txt | 20 +++++++-------- drivers/ata/libata-scsi.c | 17 ++++--------- drivers/ata/sata_nv.c | 2 +- drivers/infiniband/ulp/iser/iscsi_iser.c | 2 +- drivers/infiniband/ulp/srp/ib_srp.c | 7 ++---- drivers/message/fusion/mptscsih.c | 12 +++------ drivers/message/fusion/mptscsih.h | 3 +-- drivers/s390/scsi/zfcp_scsi.c | 11 ++------- drivers/scsi/3w-9xxx.c | 13 +--------- drivers/scsi/3w-sas.c | 13 +--------- drivers/scsi/3w-xxxx.c | 13 +--------- drivers/scsi/53c700.c | 19 ++++++-------- drivers/scsi/BusLogic.c | 4 +-- drivers/scsi/aacraid/linit.c | 18 ++++++-------- drivers/scsi/advansys.c | 8 +++--- drivers/scsi/aic7xxx/aic79xx_osm.c | 4 +-- drivers/scsi/aic7xxx/aic7xxx_osm.c | 4 +-- drivers/scsi/arcmsr/arcmsr_hba.c | 9 ++----- drivers/scsi/be2iscsi/be_main.c | 2 +- drivers/scsi/bfa/bfad_im.c | 4 +-- drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 2 +- drivers/scsi/bnx2i/bnx2i_iscsi.c | 2 +- drivers/scsi/csiostor/csio_scsi.c | 2 +- drivers/scsi/cxgbi/cxgb3i/cxgb3i.c | 2 +- drivers/scsi/cxgbi/cxgb4i/cxgb4i.c | 2 +- drivers/scsi/dpt_i2o.c | 2 +- drivers/scsi/eata.c | 6 ++--- drivers/scsi/esas2r/esas2r.h | 1 - drivers/scsi/esas2r/esas2r_main.c | 11 +-------- drivers/scsi/esp_scsi.c | 2 +- drivers/scsi/fcoe/fcoe.c | 2 +- drivers/scsi/fnic/fnic_main.c | 4 +-- drivers/scsi/hpsa.c | 16 +----------- drivers/scsi/hptiop.c | 8 ++---- drivers/scsi/ibmvscsi/ibmvfc.c | 9 ++----- drivers/scsi/ibmvscsi/ibmvscsi.c | 10 ++------ drivers/scsi/ipr.c | 10 +++----- drivers/scsi/ips.c | 2 +- drivers/scsi/iscsi_tcp.c | 2 +- drivers/scsi/libfc/fc_fcp.c | 15 +---------- drivers/scsi/libiscsi.c | 7 ------ drivers/scsi/libsas/sas_scsi_host.c | 12 ++++----- drivers/scsi/lpfc/lpfc_scsi.c | 26 +++----------------- drivers/scsi/megaraid/megaraid_mbox.c | 21 +--------------- drivers/scsi/megaraid/megaraid_sas_base.c | 13 +--------- drivers/scsi/mpt2sas/mpt2sas_scsih.c | 10 +++----- drivers/scsi/mpt3sas/mpt3sas_scsih.c | 10 +++----- drivers/scsi/ncr53c8xx.c | 2 +- drivers/scsi/pmcraid.c | 12 ++------- drivers/scsi/qla1280.c | 4 +-- drivers/scsi/qla2xxx/qla_os.c | 12 ++------- drivers/scsi/qla4xxx/ql4_os.c | 4 +-- drivers/scsi/scsi.c | 41 +++++++++++-------------------- drivers/scsi/scsi_debug.c | 4 +-- drivers/scsi/scsi_error.c | 2 +- drivers/scsi/scsi_scan.c | 2 +- drivers/scsi/scsi_sysfs.c | 3 +-- drivers/scsi/storvsc_drv.c | 2 +- drivers/scsi/sym53c8xx_2/sym_glue.c | 2 +- drivers/scsi/tmscsim.c | 2 +- drivers/scsi/u14-34f.c | 10 ++++---- drivers/scsi/ufs/ufshcd.c | 13 +++------- drivers/scsi/virtio_scsi.c | 8 ++---- drivers/scsi/vmw_pvscsi.c | 12 ++------- drivers/scsi/wd7000.c | 1 - drivers/target/loopback/tcm_loop.c | 15 +---------- drivers/usb/storage/uas.c | 2 +- include/linux/libata.h | 4 +-- include/scsi/libfc.h | 1 - include/scsi/libiscsi.h | 2 -- include/scsi/libsas.h | 3 +-- include/scsi/scsi_device.h | 2 +- include/scsi/scsi_host.h | 8 ++---- 73 files changed, 155 insertions(+), 412 deletions(-) (limited to 'drivers/scsi/tmscsim.c') diff --git a/Documentation/scsi/scsi_mid_low_api.txt b/Documentation/scsi/scsi_mid_low_api.txt index bee7d86b9dcc..731bc4f4c5e6 100644 --- a/Documentation/scsi/scsi_mid_low_api.txt +++ b/Documentation/scsi/scsi_mid_low_api.txt @@ -149,7 +149,7 @@ scsi_add_host() ----> scsi_scan_host() -------+ | slave_alloc() - slave_configure() --> scsi_adjust_queue_depth() + slave_configure() --> scsi_change_queue_depth() | slave_alloc() slave_configure() @@ -159,7 +159,7 @@ scsi_scan_host() -------+ ------------------------------------------------------------ If the LLD wants to adjust the default queue settings, it can invoke -scsi_adjust_queue_depth() in its slave_configure() routine. +scsi_change_queue_depth() in its slave_configure() routine. *** For scsi devices that the mid level tries to scan but do not respond, a slave_alloc(), slave_destroy() pair is called. @@ -203,7 +203,7 @@ LLD mid level LLD scsi_add_device() ------+ | slave_alloc() - slave_configure() [--> scsi_adjust_queue_depth()] + slave_configure() [--> scsi_change_queue_depth()] ------------------------------------------------------------ In a similar fashion, an LLD may become aware that a SCSI device has been @@ -261,7 +261,7 @@ init_this_scsi_driver() ----+ | scsi_register() | slave_alloc() - slave_configure() --> scsi_adjust_queue_depth() + slave_configure() --> scsi_change_queue_depth() slave_alloc() *** slave_destroy() *** | @@ -271,7 +271,7 @@ init_this_scsi_driver() ----+ slave_destroy() *** ------------------------------------------------------------ -The mid level invokes scsi_adjust_queue_depth() with "cmd_per_lun" for that +The mid level invokes scsi_change_queue_depth() with "cmd_per_lun" for that host as the queue length. These settings can be overridden by a slave_configure() supplied by the LLD. @@ -368,7 +368,7 @@ names all start with "scsi_". Summary: scsi_add_device - creates new scsi device (lu) instance scsi_add_host - perform sysfs registration and set up transport class - scsi_adjust_queue_depth - change the queue depth on a SCSI device + scsi_change_queue_depth - change the queue depth on a SCSI device scsi_bios_ptable - return copy of block device's partition table scsi_block_requests - prevent further commands being queued to given host scsi_host_alloc - return a new scsi_host instance whose refcount==1 @@ -436,7 +436,7 @@ int scsi_add_host(struct Scsi_Host *shost, struct device * dev) /** - * scsi_adjust_queue_depth - allow LLD to change queue depth on a SCSI device + * scsi_change_queue_depth - allow LLD to change queue depth on a SCSI device * @sdev: pointer to SCSI device to change queue depth on * @tags Number of tags allowed if tagged queuing enabled, * or number of commands the LLD can queue up @@ -453,7 +453,7 @@ int scsi_add_host(struct Scsi_Host *shost, struct device * dev) * Defined in: drivers/scsi/scsi.c [see source code for more notes] * **/ -void scsi_adjust_queue_depth(struct scsi_device *sdev, int tags) +int scsi_change_queue_depth(struct scsi_device *sdev, int tags) /** @@ -1214,7 +1214,7 @@ of interest: for disk firmware uploads. cmd_per_lun - maximum number of commands that can be queued on devices controlled by the host. Overridden by LLD calls to - scsi_adjust_queue_depth(). + scsi_change_queue_depth(). unchecked_isa_dma - 1=>only use bottom 16 MB of ram (ISA DMA addressing restriction), 0=>can use full 32 bit (or better) DMA address space @@ -1254,7 +1254,7 @@ struct scsi_cmnd Instances of this structure convey SCSI commands to the LLD and responses back to the mid level. The SCSI mid level will ensure that no more SCSI commands become queued against the LLD than are indicated by -scsi_adjust_queue_depth() (or struct Scsi_Host::cmd_per_lun). There will +scsi_change_queue_depth() (or struct Scsi_Host::cmd_per_lun). There will be at least one instance of struct scsi_cmnd available for each SCSI device. Members of interest: cmnd - array containing SCSI command diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index c8bb6abbf12c..de46385dbe71 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -1164,7 +1164,7 @@ static int ata_scsi_dev_config(struct scsi_device *sdev, depth = min(sdev->host->can_queue, ata_id_queue_depth(dev->id)); depth = min(ATA_MAX_QUEUE - 1, depth); - scsi_adjust_queue_depth(sdev, depth); + scsi_change_queue_depth(sdev, depth); } blk_queue_flush_queueable(q, false); @@ -1243,21 +1243,17 @@ void ata_scsi_slave_destroy(struct scsi_device *sdev) * @ap: ATA port to which the device change the queue depth * @sdev: SCSI device to configure queue depth for * @queue_depth: new queue depth - * @reason: calling context * * libsas and libata have different approaches for associating a sdev to * its ata_port. * */ int __ata_change_queue_depth(struct ata_port *ap, struct scsi_device *sdev, - int queue_depth, int reason) + int queue_depth) { struct ata_device *dev; unsigned long flags; - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - if (queue_depth < 1 || queue_depth == sdev->queue_depth) return sdev->queue_depth; @@ -1282,15 +1278,13 @@ int __ata_change_queue_depth(struct ata_port *ap, struct scsi_device *sdev, if (sdev->queue_depth == queue_depth) return -EINVAL; - scsi_adjust_queue_depth(sdev, queue_depth); - return queue_depth; + return scsi_change_queue_depth(sdev, queue_depth); } /** * ata_scsi_change_queue_depth - SCSI callback for queue depth config * @sdev: SCSI device to configure queue depth for * @queue_depth: new queue depth - * @reason: calling context * * This is libata standard hostt->change_queue_depth callback. * SCSI will call into this callback when user tries to set queue @@ -1302,12 +1296,11 @@ int __ata_change_queue_depth(struct ata_port *ap, struct scsi_device *sdev, * RETURNS: * Newly configured queue depth. */ -int ata_scsi_change_queue_depth(struct scsi_device *sdev, int queue_depth, - int reason) +int ata_scsi_change_queue_depth(struct scsi_device *sdev, int queue_depth) { struct ata_port *ap = ata_shost_to_port(sdev->host); - return __ata_change_queue_depth(ap, sdev, queue_depth, reason); + return __ata_change_queue_depth(ap, sdev, queue_depth); } /** diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c index cdf99fac139a..1db6f5ce5e89 100644 --- a/drivers/ata/sata_nv.c +++ b/drivers/ata/sata_nv.c @@ -1951,7 +1951,7 @@ static int nv_swncq_slave_config(struct scsi_device *sdev) ata_id_c_string(dev->id, model_num, ATA_ID_PROD, sizeof(model_num)); if (strncmp(model_num, "Maxtor", 6) == 0) { - ata_scsi_change_queue_depth(sdev, 1, SCSI_QDEPTH_DEFAULT); + ata_scsi_change_queue_depth(sdev, 1); ata_dev_notice(dev, "Disabling SWNCQ mode (depth %x)\n", sdev->queue_depth); } diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c index 812a2891de58..20ca6a619476 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.c +++ b/drivers/infiniband/ulp/iser/iscsi_iser.c @@ -911,7 +911,7 @@ static struct scsi_host_template iscsi_iser_sht = { .module = THIS_MODULE, .name = "iSCSI Initiator over iSER", .queuecommand = iscsi_queuecommand, - .change_queue_depth = iscsi_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .sg_tablesize = ISCSI_ISER_SG_TABLESIZE, .max_sectors = 1024, .cmd_per_lun = ISER_DEF_CMD_PER_LUN, diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index 8d13a19e04b2..5461924c9f10 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -2402,18 +2402,15 @@ static int srp_cm_handler(struct ib_cm_id *cm_id, struct ib_cm_event *event) * srp_change_queue_depth - setting device queue depth * @sdev: scsi device struct * @qdepth: requested queue depth - * @reason: SCSI_QDEPTH_DEFAULT - * (see include/scsi/scsi_host.h for definition) * * Returns queue depth. */ static int -srp_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) +srp_change_queue_depth(struct scsi_device *sdev, int qdepth) { if (!sdev->tagged_supported) qdepth = 1; - scsi_adjust_queue_depth(sdev, qdepth); - return sdev->queue_depth; + return scsi_change_queue_depth(sdev, qdepth); } static int srp_send_tsk_mgmt(struct srp_rdma_ch *ch, u64 req_tag, diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c index dee06d6f0b68..6c9fc11efb87 100644 --- a/drivers/message/fusion/mptscsih.c +++ b/drivers/message/fusion/mptscsih.c @@ -2311,12 +2311,11 @@ mptscsih_slave_destroy(struct scsi_device *sdev) * mptscsih_change_queue_depth - This function will set a devices queue depth * @sdev: per scsi_device pointer * @qdepth: requested queue depth - * @reason: calling context * * Adding support for new 'change_queue_depth' api. */ int -mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) +mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth) { MPT_SCSI_HOST *hd = shost_priv(sdev->host); VirtTarget *vtarget; @@ -2327,9 +2326,6 @@ mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) starget = scsi_target(sdev); vtarget = starget->hostdata; - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - if (ioc->bus_type == SPI) { if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES)) max_depth = 1; @@ -2347,8 +2343,7 @@ mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) if (qdepth > max_depth) qdepth = max_depth; - scsi_adjust_queue_depth(sdev, qdepth); - return sdev->queue_depth; + return scsi_change_queue_depth(sdev, qdepth); } /* @@ -2392,8 +2387,7 @@ mptscsih_slave_configure(struct scsi_device *sdev) ioc->name, vtarget->negoFlags, vtarget->maxOffset, vtarget->minSyncFactor)); - mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH, - SCSI_QDEPTH_DEFAULT); + mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH); dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT "tagged %d, simple %d\n", ioc->name,sdev->tagged_supported, sdev->simple_tags)); diff --git a/drivers/message/fusion/mptscsih.h b/drivers/message/fusion/mptscsih.h index e1b1a198a62a..2baeefd9be7a 100644 --- a/drivers/message/fusion/mptscsih.h +++ b/drivers/message/fusion/mptscsih.h @@ -128,8 +128,7 @@ extern int mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_F extern int mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r); extern int mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply); extern int mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset); -extern int mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth, - int reason); +extern int mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth); extern u8 mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id); extern int mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id); extern struct device_attribute *mptscsih_host_attrs[]; diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index 179bf3d8af6c..75f4bfc2b98a 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -32,13 +32,6 @@ static bool allow_lun_scan = 1; module_param(allow_lun_scan, bool, 0600); MODULE_PARM_DESC(allow_lun_scan, "For NPIV, scan and attach all storage LUNs"); -static int zfcp_scsi_change_queue_depth(struct scsi_device *sdev, int depth, - int reason) -{ - scsi_adjust_queue_depth(sdev, depth); - return sdev->queue_depth; -} - static void zfcp_scsi_slave_destroy(struct scsi_device *sdev) { struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); @@ -54,7 +47,7 @@ static void zfcp_scsi_slave_destroy(struct scsi_device *sdev) static int zfcp_scsi_slave_configure(struct scsi_device *sdp) { if (sdp->tagged_supported) - scsi_adjust_queue_depth(sdp, default_depth); + scsi_change_queue_depth(sdp, default_depth); return 0; } @@ -293,7 +286,7 @@ static struct scsi_host_template zfcp_scsi_host_template = { .slave_alloc = zfcp_scsi_slave_alloc, .slave_configure = zfcp_scsi_slave_configure, .slave_destroy = zfcp_scsi_slave_destroy, - .change_queue_depth = zfcp_scsi_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .proc_name = "zfcp", .can_queue = 4096, .this_id = -1, diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c index 1cf37032290a..cd4129ff7ae4 100644 --- a/drivers/scsi/3w-9xxx.c +++ b/drivers/scsi/3w-9xxx.c @@ -189,17 +189,6 @@ static ssize_t twa_show_stats(struct device *dev, return len; } /* End twa_show_stats() */ -/* This function will set a devices queue depth */ -static int twa_change_queue_depth(struct scsi_device *sdev, int queue_depth, - int reason) -{ - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - - scsi_adjust_queue_depth(sdev, queue_depth); - return queue_depth; -} /* End twa_change_queue_depth() */ - /* Create sysfs 'stats' entry */ static struct device_attribute twa_host_stats_attr = { .attr = { @@ -2014,7 +2003,7 @@ static struct scsi_host_template driver_template = { .queuecommand = twa_scsi_queue, .eh_host_reset_handler = twa_scsi_eh_reset, .bios_param = twa_scsi_biosparam, - .change_queue_depth = twa_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .can_queue = TW_Q_LENGTH-2, .slave_configure = twa_slave_configure, .this_id = -1, diff --git a/drivers/scsi/3w-sas.c b/drivers/scsi/3w-sas.c index 547756b7d5bf..2361772d5909 100644 --- a/drivers/scsi/3w-sas.c +++ b/drivers/scsi/3w-sas.c @@ -191,17 +191,6 @@ static ssize_t twl_show_stats(struct device *dev, return len; } /* End twl_show_stats() */ -/* This function will set a devices queue depth */ -static int twl_change_queue_depth(struct scsi_device *sdev, int queue_depth, - int reason) -{ - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - - scsi_adjust_queue_depth(sdev, queue_depth); - return queue_depth; -} /* End twl_change_queue_depth() */ - /* stats sysfs attribute initializer */ static struct device_attribute twl_host_stats_attr = { .attr = { @@ -1588,7 +1577,7 @@ static struct scsi_host_template driver_template = { .queuecommand = twl_scsi_queue, .eh_host_reset_handler = twl_scsi_eh_reset, .bios_param = twl_scsi_biosparam, - .change_queue_depth = twl_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .can_queue = TW_Q_LENGTH-2, .slave_configure = twl_slave_configure, .this_id = -1, diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c index 261a4c1da962..c75f2048319f 100644 --- a/drivers/scsi/3w-xxxx.c +++ b/drivers/scsi/3w-xxxx.c @@ -523,17 +523,6 @@ static ssize_t tw_show_stats(struct device *dev, struct device_attribute *attr, return len; } /* End tw_show_stats() */ -/* This function will set a devices queue depth */ -static int tw_change_queue_depth(struct scsi_device *sdev, int queue_depth, - int reason) -{ - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - - scsi_adjust_queue_depth(sdev, queue_depth); - return queue_depth; -} /* End tw_change_queue_depth() */ - /* Create sysfs 'stats' entry */ static struct device_attribute tw_host_stats_attr = { .attr = { @@ -2268,7 +2257,7 @@ static struct scsi_host_template driver_template = { .queuecommand = tw_scsi_queue, .eh_host_reset_handler = tw_scsi_eh_reset, .bios_param = tw_scsi_biosparam, - .change_queue_depth = tw_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .can_queue = TW_Q_LENGTH-2, .slave_configure = tw_slave_configure, .this_id = -1, diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c index d7557b932113..aa915da2a5e5 100644 --- a/drivers/scsi/53c700.c +++ b/drivers/scsi/53c700.c @@ -175,7 +175,7 @@ STATIC void NCR_700_chip_reset(struct Scsi_Host *host); STATIC int NCR_700_slave_alloc(struct scsi_device *SDpnt); STATIC int NCR_700_slave_configure(struct scsi_device *SDpnt); STATIC void NCR_700_slave_destroy(struct scsi_device *SDpnt); -static int NCR_700_change_queue_depth(struct scsi_device *SDpnt, int depth, int reason); +static int NCR_700_change_queue_depth(struct scsi_device *SDpnt, int depth); static int NCR_700_change_queue_type(struct scsi_device *SDpnt, int depth); STATIC struct device_attribute *NCR_700_dev_attrs[]; @@ -904,7 +904,7 @@ process_message(struct Scsi_Host *host, struct NCR_700_Host_Parameters *hostdata hostdata->tag_negotiated &= ~(1<device->tagged_supported = 0; - scsi_adjust_queue_depth(SCp->device, host->cmd_per_lun); + scsi_change_queue_depth(SCp->device, host->cmd_per_lun); scsi_set_tag_type(SCp->device, 0); } else { shost_printk(KERN_WARNING, host, @@ -2052,7 +2052,7 @@ NCR_700_slave_configure(struct scsi_device *SDp) /* to do here: allocate memory; build a queue_full list */ if(SDp->tagged_supported) { - scsi_adjust_queue_depth(SDp, NCR_700_DEFAULT_TAGS); + scsi_change_queue_depth(SDp, NCR_700_DEFAULT_TAGS); NCR_700_set_tag_neg_state(SDp, NCR_700_START_TAG_NEGOTIATION); } @@ -2075,16 +2075,11 @@ NCR_700_slave_destroy(struct scsi_device *SDp) } static int -NCR_700_change_queue_depth(struct scsi_device *SDp, int depth, int reason) +NCR_700_change_queue_depth(struct scsi_device *SDp, int depth) { - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - if (depth > NCR_700_MAX_TAGS) depth = NCR_700_MAX_TAGS; - - scsi_adjust_queue_depth(SDp, depth); - return depth; + return scsi_change_queue_depth(SDp, depth); } static int NCR_700_change_queue_type(struct scsi_device *SDp, int tag_type) @@ -2105,12 +2100,12 @@ static int NCR_700_change_queue_type(struct scsi_device *SDp, int tag_type) if (!tag_type) { /* shift back to the default unqueued number of commands * (the user can still raise this) */ - scsi_adjust_queue_depth(SDp, SDp->host->cmd_per_lun); + scsi_change_queue_depth(SDp, SDp->host->cmd_per_lun); hostdata->tag_negotiated &= ~(1 << sdev_id(SDp)); } else { /* Here, we cleared the negotiation flag above, so this * will force the driver to renegotiate */ - scsi_adjust_queue_depth(SDp, SDp->queue_depth); + scsi_change_queue_depth(SDp, SDp->queue_depth); if (change_tag) NCR_700_set_tag_neg_state(SDp, NCR_700_START_TAG_NEGOTIATION); } diff --git a/drivers/scsi/BusLogic.c b/drivers/scsi/BusLogic.c index 5aa476b6b8a8..8d66a6469e29 100644 --- a/drivers/scsi/BusLogic.c +++ b/drivers/scsi/BusLogic.c @@ -2327,12 +2327,12 @@ static int blogic_slaveconfig(struct scsi_device *dev) if (qdepth == 0) qdepth = BLOGIC_MAX_AUTO_TAG_DEPTH; adapter->qdepth[tgt_id] = qdepth; - scsi_adjust_queue_depth(dev, qdepth); + scsi_change_queue_depth(dev, qdepth); } else { adapter->tagq_ok &= ~(1 << tgt_id); qdepth = adapter->untag_qdepth; adapter->qdepth[tgt_id] = qdepth; - scsi_adjust_queue_depth(dev, qdepth); + scsi_change_queue_depth(dev, qdepth); } qdepth = 0; for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index 41b9c68bca67..d11c23aad046 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -462,9 +462,9 @@ static int aac_slave_configure(struct scsi_device *sdev) depth = 256; else if (depth < 2) depth = 2; - scsi_adjust_queue_depth(sdev, depth); + scsi_change_queue_depth(sdev, depth); } else - scsi_adjust_queue_depth(sdev, 1); + scsi_change_queue_depth(sdev, 1); return 0; } @@ -478,12 +478,8 @@ static int aac_slave_configure(struct scsi_device *sdev) * total capacity and the queue depth supported by the target device. */ -static int aac_change_queue_depth(struct scsi_device *sdev, int depth, - int reason) +static int aac_change_queue_depth(struct scsi_device *sdev, int depth) { - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - if (sdev->tagged_supported && (sdev->type == TYPE_DISK) && (sdev_channel(sdev) == CONTAINER_CHANNEL)) { struct scsi_device * dev; @@ -504,10 +500,10 @@ static int aac_change_queue_depth(struct scsi_device *sdev, int depth, depth = 256; else if (depth < 2) depth = 2; - scsi_adjust_queue_depth(sdev, depth); - } else - scsi_adjust_queue_depth(sdev, 1); - return sdev->queue_depth; + return scsi_change_queue_depth(sdev, depth); + } + + return scsi_change_queue_depth(sdev, 1); } static ssize_t aac_show_raid_level(struct device *dev, struct device_attribute *attr, char *buf) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index ae4840e4c1c5..6719a3390ebd 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -7706,7 +7706,7 @@ advansys_narrow_slave_configure(struct scsi_device *sdev, ASC_DVC_VAR *asc_dvc) asc_dvc->cfg->can_tagged_qng |= tid_bit; asc_dvc->use_tagged_qng |= tid_bit; } - scsi_adjust_queue_depth(sdev, + scsi_change_queue_depth(sdev, asc_dvc->max_dvc_qng[sdev->id]); } } else { @@ -7847,10 +7847,8 @@ advansys_wide_slave_configure(struct scsi_device *sdev, ADV_DVC_VAR *adv_dvc) } } - if ((adv_dvc->tagqng_able & tidmask) && sdev->tagged_supported) { - scsi_adjust_queue_depth(sdev, - adv_dvc->max_dvc_qng); - } + if ((adv_dvc->tagqng_able & tidmask) && sdev->tagged_supported) + scsi_change_queue_depth(sdev, adv_dvc->max_dvc_qng); } /* diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c index 80cb4fd7caaa..d5c7b193d8d3 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm.c +++ b/drivers/scsi/aic7xxx/aic79xx_osm.c @@ -1470,7 +1470,7 @@ ahd_platform_set_tags(struct ahd_softc *ahd, struct scsi_device *sdev, switch ((dev->flags & (AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED))) { case AHD_DEV_Q_BASIC: case AHD_DEV_Q_TAGGED: - scsi_adjust_queue_depth(sdev, + scsi_change_queue_depth(sdev, dev->openings + dev->active); break; default: @@ -1480,7 +1480,7 @@ ahd_platform_set_tags(struct ahd_softc *ahd, struct scsi_device *sdev, * serially on the controller/device. This should * remove some latency. */ - scsi_adjust_queue_depth(sdev, 1); + scsi_change_queue_depth(sdev, 1); break; } } diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c index a6a27d5398dd..88360116dbcb 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -1336,7 +1336,7 @@ ahc_platform_set_tags(struct ahc_softc *ahc, struct scsi_device *sdev, switch ((dev->flags & (AHC_DEV_Q_BASIC|AHC_DEV_Q_TAGGED))) { case AHC_DEV_Q_BASIC: case AHC_DEV_Q_TAGGED: - scsi_adjust_queue_depth(sdev, + scsi_change_queue_depth(sdev, dev->openings + dev->active); default: /* @@ -1345,7 +1345,7 @@ ahc_platform_set_tags(struct ahc_softc *ahc, struct scsi_device *sdev, * serially on the controller/device. This should * remove some latency. */ - scsi_adjust_queue_depth(sdev, 2); + scsi_change_queue_depth(sdev, 2); break; } } diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c index 209f77162d06..914c39f9f388 100644 --- a/drivers/scsi/arcmsr/arcmsr_hba.c +++ b/drivers/scsi/arcmsr/arcmsr_hba.c @@ -114,16 +114,11 @@ static void arcmsr_hardware_reset(struct AdapterControlBlock *acb); static const char *arcmsr_info(struct Scsi_Host *); static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb); static void arcmsr_free_irq(struct pci_dev *, struct AdapterControlBlock *); -static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev, - int queue_depth, int reason) +static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev, int queue_depth) { - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - if (queue_depth > ARCMSR_MAX_CMD_PERLUN) queue_depth = ARCMSR_MAX_CMD_PERLUN; - scsi_adjust_queue_depth(sdev, queue_depth); - return queue_depth; + return scsi_change_queue_depth(sdev, queue_depth); } static struct scsi_host_template arcmsr_scsi_host_template = { diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c index d9b999a3416f..f3193406776c 100644 --- a/drivers/scsi/be2iscsi/be_main.c +++ b/drivers/scsi/be2iscsi/be_main.c @@ -556,7 +556,7 @@ static struct scsi_host_template beiscsi_sht = { .name = "Emulex 10Gbe open-iscsi Initiator Driver", .proc_name = DRV_NAME, .queuecommand = iscsi_queuecommand, - .change_queue_depth = iscsi_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .slave_configure = beiscsi_slave_configure, .target_alloc = iscsi_target_alloc, .eh_abort_handler = beiscsi_eh_abort, diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c index 87b09cd232cc..7223b0006740 100644 --- a/drivers/scsi/bfa/bfad_im.c +++ b/drivers/scsi/bfa/bfad_im.c @@ -776,7 +776,7 @@ bfad_thread_workq(struct bfad_s *bfad) static int bfad_im_slave_configure(struct scsi_device *sdev) { - scsi_adjust_queue_depth(sdev, bfa_lun_queue_depth); + scsi_change_queue_depth(sdev, bfa_lun_queue_depth); return 0; } @@ -866,7 +866,7 @@ bfad_ramp_up_qdepth(struct bfad_itnim_s *itnim, struct scsi_device *sdev) if (bfa_lun_queue_depth > tmp_sdev->queue_depth) { if (tmp_sdev->id != sdev->id) continue; - scsi_adjust_queue_depth(tmp_sdev, + scsi_change_queue_depth(tmp_sdev, tmp_sdev->queue_depth + 1); itnim->last_ramp_up_time = jiffies; diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index cc537972f3ea..386c2cfad306 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -2784,7 +2784,7 @@ static struct scsi_host_template bnx2fc_shost_template = { .eh_target_reset_handler = bnx2fc_eh_target_reset, /* tgt reset */ .eh_host_reset_handler = fc_eh_host_reset, .slave_alloc = fc_slave_alloc, - .change_queue_depth = fc_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .change_queue_type = scsi_change_queue_type, .this_id = -1, .cmd_per_lun = 3, diff --git a/drivers/scsi/bnx2i/bnx2i_iscsi.c b/drivers/scsi/bnx2i/bnx2i_iscsi.c index 9de1c20bb0f8..e53078d03309 100644 --- a/drivers/scsi/bnx2i/bnx2i_iscsi.c +++ b/drivers/scsi/bnx2i/bnx2i_iscsi.c @@ -2259,7 +2259,7 @@ static struct scsi_host_template bnx2i_host_template = { .eh_abort_handler = iscsi_eh_abort, .eh_device_reset_handler = iscsi_eh_device_reset, .eh_target_reset_handler = iscsi_eh_recover_target, - .change_queue_depth = iscsi_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .target_alloc = iscsi_target_alloc, .can_queue = 2048, .max_sectors = 127, diff --git a/drivers/scsi/csiostor/csio_scsi.c b/drivers/scsi/csiostor/csio_scsi.c index 44a8cc51428f..4d0b6ce55f20 100644 --- a/drivers/scsi/csiostor/csio_scsi.c +++ b/drivers/scsi/csiostor/csio_scsi.c @@ -2241,7 +2241,7 @@ csio_slave_alloc(struct scsi_device *sdev) static int csio_slave_configure(struct scsi_device *sdev) { - scsi_adjust_queue_depth(sdev, csio_lun_qdepth); + scsi_change_queue_depth(sdev, csio_lun_qdepth); return 0; } diff --git a/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c b/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c index 99ea67dcdd2a..3db4c63978c5 100644 --- a/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c +++ b/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c @@ -86,7 +86,7 @@ static struct scsi_host_template cxgb3i_host_template = { .proc_name = DRV_MODULE_NAME, .can_queue = CXGB3I_SCSI_HOST_QDEPTH, .queuecommand = iscsi_queuecommand, - .change_queue_depth = iscsi_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .sg_tablesize = SG_ALL, .max_sectors = 0xFFFF, .cmd_per_lun = ISCSI_DEF_CMD_PER_LUN, diff --git a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c index af86e8f57b84..efe42ef7d92b 100644 --- a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c +++ b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c @@ -89,7 +89,7 @@ static struct scsi_host_template cxgb4i_host_template = { .proc_name = DRV_MODULE_NAME, .can_queue = CXGB4I_SCSI_HOST_QDEPTH, .queuecommand = iscsi_queuecommand, - .change_queue_depth = iscsi_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .sg_tablesize = SG_ALL, .max_sectors = 0xFFFF, .cmd_per_lun = ISCSI_DEF_CMD_PER_LUN, diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c index 1af8d54bcded..0bf976936a10 100644 --- a/drivers/scsi/dpt_i2o.c +++ b/drivers/scsi/dpt_i2o.c @@ -415,7 +415,7 @@ static int adpt_slave_configure(struct scsi_device * device) pHba = (adpt_hba *) host->hostdata[0]; if (host->can_queue && device->tagged_supported) { - scsi_adjust_queue_depth(device, + scsi_change_queue_depth(device, host->can_queue - 1); } return 0; diff --git a/drivers/scsi/eata.c b/drivers/scsi/eata.c index bc0f918f1729..227dd2c2ec2f 100644 --- a/drivers/scsi/eata.c +++ b/drivers/scsi/eata.c @@ -952,12 +952,12 @@ static int eata2x_slave_configure(struct scsi_device *dev) } else { tag_suffix = ", no tags"; } - scsi_adjust_queue_depth(dev, tqd); + scsi_change_queue_depth(dev, tqd); } else if (TLDEV(dev->type) && linked_comm) { - scsi_adjust_queue_depth(dev, tqd); + scsi_change_queue_depth(dev, tqd); tag_suffix = ", untagged"; } else { - scsi_adjust_queue_depth(dev, utqd); + scsi_change_queue_depth(dev, utqd); tag_suffix = ""; } diff --git a/drivers/scsi/esas2r/esas2r.h b/drivers/scsi/esas2r/esas2r.h index 1941d837f6f2..b6030e3edd01 100644 --- a/drivers/scsi/esas2r/esas2r.h +++ b/drivers/scsi/esas2r/esas2r.h @@ -972,7 +972,6 @@ u8 handle_hba_ioctl(struct esas2r_adapter *a, struct atto_ioctl *ioctl_hba); int esas2r_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd); int esas2r_show_info(struct seq_file *m, struct Scsi_Host *sh); -int esas2r_change_queue_depth(struct scsi_device *dev, int depth, int reason); long esas2r_proc_ioctl(struct file *fp, unsigned int cmd, unsigned long arg); /* SCSI error handler (eh) functions */ diff --git a/drivers/scsi/esas2r/esas2r_main.c b/drivers/scsi/esas2r/esas2r_main.c index 30fce64faf75..593ff8a63c70 100644 --- a/drivers/scsi/esas2r/esas2r_main.c +++ b/drivers/scsi/esas2r/esas2r_main.c @@ -254,7 +254,7 @@ static struct scsi_host_template driver_template = { .use_clustering = ENABLE_CLUSTERING, .emulated = 0, .proc_name = ESAS2R_DRVR_NAME, - .change_queue_depth = esas2r_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .change_queue_type = scsi_change_queue_type, .max_sectors = 0xFFFF, .use_blk_tags = 1, @@ -1257,15 +1257,6 @@ int esas2r_target_reset(struct scsi_cmnd *cmd) return esas2r_dev_targ_reset(cmd, true); } -int esas2r_change_queue_depth(struct scsi_device *dev, int depth, int reason) -{ - esas2r_log(ESAS2R_LOG_INFO, "change_queue_depth %p, %d", dev, depth); - - scsi_adjust_queue_depth(dev, depth); - - return dev->queue_depth; -} - void esas2r_log_request_failure(struct esas2r_adapter *a, struct esas2r_request *rq) { diff --git a/drivers/scsi/esp_scsi.c b/drivers/scsi/esp_scsi.c index 38c23e0b73af..7e7687f73deb 100644 --- a/drivers/scsi/esp_scsi.c +++ b/drivers/scsi/esp_scsi.c @@ -2407,7 +2407,7 @@ static int esp_slave_configure(struct scsi_device *dev) /* XXX make this configurable somehow XXX */ int goal_tags = min(ESP_DEFAULT_TAGS, ESP_MAX_TAG); - scsi_adjust_queue_depth(dev, goal_tags); + scsi_change_queue_depth(dev, goal_tags); } tp->flags |= ESP_TGT_DISCONNECT; diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c index 97229860398f..308a016fdaea 100644 --- a/drivers/scsi/fcoe/fcoe.c +++ b/drivers/scsi/fcoe/fcoe.c @@ -280,7 +280,7 @@ static struct scsi_host_template fcoe_shost_template = { .eh_device_reset_handler = fc_eh_device_reset, .eh_host_reset_handler = fc_eh_host_reset, .slave_alloc = fc_slave_alloc, - .change_queue_depth = fc_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .change_queue_type = scsi_change_queue_type, .this_id = -1, .cmd_per_lun = 3, diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c index 86b496c8633d..0c1f8177b5b7 100644 --- a/drivers/scsi/fnic/fnic_main.c +++ b/drivers/scsi/fnic/fnic_main.c @@ -98,7 +98,7 @@ static int fnic_slave_alloc(struct scsi_device *sdev) if (!rport || fc_remote_port_chkready(rport)) return -ENXIO; - scsi_adjust_queue_depth(sdev, fnic_max_qdepth); + scsi_change_queue_depth(sdev, fnic_max_qdepth); return 0; } @@ -110,7 +110,7 @@ static struct scsi_host_template fnic_host_template = { .eh_device_reset_handler = fnic_device_reset, .eh_host_reset_handler = fnic_host_reset, .slave_alloc = fnic_slave_alloc, - .change_queue_depth = fc_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .change_queue_type = scsi_change_queue_type, .this_id = -1, .cmd_per_lun = 3, diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 617f218e2a16..6bb4611b238a 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -216,8 +216,6 @@ static int hpsa_scsi_queue_command(struct Scsi_Host *h, struct scsi_cmnd *cmd); static void hpsa_scan_start(struct Scsi_Host *); static int hpsa_scan_finished(struct Scsi_Host *sh, unsigned long elapsed_time); -static int hpsa_change_queue_depth(struct scsi_device *sdev, - int qdepth, int reason); static int hpsa_eh_device_reset_handler(struct scsi_cmnd *scsicmd); static int hpsa_eh_abort_handler(struct scsi_cmnd *scsicmd); @@ -673,7 +671,7 @@ static struct scsi_host_template hpsa_driver_template = { .queuecommand = hpsa_scsi_queue_command, .scan_start = hpsa_scan_start, .scan_finished = hpsa_scan_finished, - .change_queue_depth = hpsa_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .this_id = -1, .use_clustering = ENABLE_CLUSTERING, .eh_abort_handler = hpsa_eh_abort_handler, @@ -4074,18 +4072,6 @@ static int hpsa_scan_finished(struct Scsi_Host *sh, return finished; } -static int hpsa_change_queue_depth(struct scsi_device *sdev, - int qdepth, int reason) -{ - struct ctlr_info *h = sdev_to_hba(sdev); - - if (reason != SCSI_QDEPTH_DEFAULT) - return -ENOTSUPP; - - scsi_adjust_queue_depth(sdev, qdepth); - return sdev->queue_depth; -} - static void hpsa_unregister_scsi(struct ctlr_info *h) { /* we are being forcibly unloaded, and may not refuse. */ diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c index 151893148abd..e995218476ed 100644 --- a/drivers/scsi/hptiop.c +++ b/drivers/scsi/hptiop.c @@ -1118,17 +1118,13 @@ static int hptiop_reset(struct scsi_cmnd *scp) } static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev, - int queue_depth, int reason) + int queue_depth) { struct hptiop_hba *hba = (struct hptiop_hba *)sdev->host->hostdata; - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - if (queue_depth > hba->max_requests) queue_depth = hba->max_requests; - scsi_adjust_queue_depth(sdev, queue_depth); - return queue_depth; + return scsi_change_queue_depth(sdev, queue_depth); } static ssize_t hptiop_show_version(struct device *dev, diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 381449d5be76..f58c6d8e0264 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -2900,17 +2900,12 @@ static int ibmvfc_slave_configure(struct scsi_device *sdev) * Return value: * actual depth set **/ -static int ibmvfc_change_queue_depth(struct scsi_device *sdev, int qdepth, - int reason) +static int ibmvfc_change_queue_depth(struct scsi_device *sdev, int qdepth) { - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - if (qdepth > IBMVFC_MAX_CMDS_PER_LUN) qdepth = IBMVFC_MAX_CMDS_PER_LUN; - scsi_adjust_queue_depth(sdev, qdepth); - return sdev->queue_depth; + return scsi_change_queue_depth(sdev, qdepth); } static ssize_t ibmvfc_show_host_partition_name(struct device *dev, diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c index e8c3cdf0d03b..acea5d6eebd0 100644 --- a/drivers/scsi/ibmvscsi/ibmvscsi.c +++ b/drivers/scsi/ibmvscsi/ibmvscsi.c @@ -1941,17 +1941,11 @@ static int ibmvscsi_slave_configure(struct scsi_device *sdev) * Return value: * actual depth set **/ -static int ibmvscsi_change_queue_depth(struct scsi_device *sdev, int qdepth, - int reason) +static int ibmvscsi_change_queue_depth(struct scsi_device *sdev, int qdepth) { - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - if (qdepth > IBMVSCSI_MAX_CMDS_PER_LUN) qdepth = IBMVSCSI_MAX_CMDS_PER_LUN; - - scsi_adjust_queue_depth(sdev, qdepth); - return sdev->queue_depth; + return scsi_change_queue_depth(sdev, qdepth); } /* ------------------------------------------------------------ diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index d8d16625a876..540294389355 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -4328,16 +4328,12 @@ static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; * Return value: * actual depth set **/ -static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth, - int reason) +static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth) { struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; struct ipr_resource_entry *res; unsigned long lock_flags = 0; - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); res = (struct ipr_resource_entry *)sdev->hostdata; @@ -4345,7 +4341,7 @@ static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth, qdepth = IPR_MAX_CMD_PER_ATA_LUN; spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); - scsi_adjust_queue_depth(sdev, qdepth); + scsi_change_queue_depth(sdev, qdepth); return sdev->queue_depth; } @@ -4752,7 +4748,7 @@ static int ipr_slave_configure(struct scsi_device *sdev) spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); if (ap) { - scsi_adjust_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN); + scsi_change_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN); ata_sas_slave_configure(sdev, ap); } diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c index 454741a8da45..e5c28435d768 100644 --- a/drivers/scsi/ips.c +++ b/drivers/scsi/ips.c @@ -1210,7 +1210,7 @@ ips_slave_configure(struct scsi_device * SDptr) min = ha->max_cmds / 2; if (ha->enq->ucLogDriveCount <= 2) min = ha->max_cmds - 1; - scsi_adjust_queue_depth(SDptr, min); + scsi_change_queue_depth(SDptr, min); } SDptr->skip_ms_page_8 = 1; diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index a575d845b667..0b8af186e707 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -952,7 +952,7 @@ static struct scsi_host_template iscsi_sw_tcp_sht = { .module = THIS_MODULE, .name = "iSCSI Initiator over TCP/IP", .queuecommand = iscsi_queuecommand, - .change_queue_depth = iscsi_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .can_queue = ISCSI_DEF_XMIT_CMDS_MAX - 1, .sg_tablesize = 4096, .max_sectors = 0xFFFF, diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c index 0d2d024e77c5..c6795941b45d 100644 --- a/drivers/scsi/libfc/fc_fcp.c +++ b/drivers/scsi/libfc/fc_fcp.c @@ -2160,24 +2160,11 @@ int fc_slave_alloc(struct scsi_device *sdev) if (!rport || fc_remote_port_chkready(rport)) return -ENXIO; - scsi_adjust_queue_depth(sdev, FC_FCP_DFLT_QUEUE_DEPTH); + scsi_change_queue_depth(sdev, FC_FCP_DFLT_QUEUE_DEPTH); return 0; } EXPORT_SYMBOL(fc_slave_alloc); -/** - * fc_change_queue_depth() - Change a device's queue depth - * @sdev: The SCSI device whose queue depth is to change - * @qdepth: The new queue depth - * @reason: The resason for the change - */ -int fc_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) -{ - scsi_adjust_queue_depth(sdev, qdepth); - return sdev->queue_depth; -} -EXPORT_SYMBOL(fc_change_queue_depth); - /** * fc_fcp_destory() - Tear down the FCP layer for a given local port * @lport: The local port that no longer needs the FCP layer diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 79e977484ad5..8053f24f0349 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -1771,13 +1771,6 @@ fault: } EXPORT_SYMBOL_GPL(iscsi_queuecommand); -int iscsi_change_queue_depth(struct scsi_device *sdev, int depth, int reason) -{ - scsi_adjust_queue_depth(sdev, depth); - return sdev->queue_depth; -} -EXPORT_SYMBOL_GPL(iscsi_change_queue_depth); - int iscsi_target_alloc(struct scsi_target *starget) { struct iscsi_cls_session *cls_session = starget_to_session(starget); diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c index 914e41165137..b492293d51f2 100644 --- a/drivers/scsi/libsas/sas_scsi_host.c +++ b/drivers/scsi/libsas/sas_scsi_host.c @@ -940,12 +940,12 @@ int sas_slave_configure(struct scsi_device *scsi_dev) sas_read_port_mode_page(scsi_dev); if (scsi_dev->tagged_supported) { - scsi_adjust_queue_depth(scsi_dev, SAS_DEF_QD); + scsi_change_queue_depth(scsi_dev, SAS_DEF_QD); } else { SAS_DPRINTK("device %llx, LUN %llx doesn't support " "TCQ\n", SAS_ADDR(dev->sas_addr), scsi_dev->lun); - scsi_adjust_queue_depth(scsi_dev, 1); + scsi_change_queue_depth(scsi_dev, 1); } scsi_dev->allow_restart = 1; @@ -953,18 +953,16 @@ int sas_slave_configure(struct scsi_device *scsi_dev) return 0; } -int sas_change_queue_depth(struct scsi_device *sdev, int depth, int reason) +int sas_change_queue_depth(struct scsi_device *sdev, int depth) { struct domain_device *dev = sdev_to_domain_dev(sdev); if (dev_is_sata(dev)) - return __ata_change_queue_depth(dev->sata_dev.ap, sdev, depth, - reason); + return __ata_change_queue_depth(dev->sata_dev.ap, sdev, depth); if (!sdev->tagged_supported) depth = 1; - scsi_adjust_queue_depth(sdev, depth); - return depth; + return scsi_change_queue_depth(sdev, depth); } int sas_change_queue_type(struct scsi_device *scsi_dev, int type) diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index 522854920369..fd85952b621d 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -242,23 +242,6 @@ lpfc_update_stats(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) spin_unlock_irqrestore(shost->host_lock, flags); } -/** - * lpfc_change_queue_depth - Alter scsi device queue depth - * @sdev: Pointer the scsi device on which to change the queue depth. - * @qdepth: New queue depth to set the sdev to. - * @reason: The reason for the queue depth change. - * - * This function is called by the midlayer and the LLD to alter the queue - * depth for a scsi device. This function sets the queue depth to the new - * value and sends an event out to log the queue depth change. - **/ -static int -lpfc_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) -{ - scsi_adjust_queue_depth(sdev, qdepth); - return sdev->queue_depth; -} - /** * lpfc_rampdown_queue_depth - Post RAMP_DOWN_QUEUE event to worker thread * @phba: The Hba for which this call is being executed. @@ -344,8 +327,7 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba) else new_queue_depth = sdev->queue_depth - new_queue_depth; - lpfc_change_queue_depth(sdev, new_queue_depth, - SCSI_QDEPTH_DEFAULT); + scsi_change_queue_depth(sdev, new_queue_depth); } } lpfc_destroy_vport_work_array(phba, vports); @@ -5513,7 +5495,7 @@ lpfc_slave_configure(struct scsi_device *sdev) struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; struct lpfc_hba *phba = vport->phba; - scsi_adjust_queue_depth(sdev, vport->cfg_lun_queue_depth); + scsi_change_queue_depth(sdev, vport->cfg_lun_queue_depth); if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { lpfc_sli_handle_fast_ring_event(phba, @@ -5896,7 +5878,7 @@ struct scsi_host_template lpfc_template = { .shost_attrs = lpfc_hba_attrs, .max_sectors = 0xFFFF, .vendor_id = LPFC_NL_VENDOR_ID, - .change_queue_depth = lpfc_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .change_queue_type = scsi_change_queue_type, .use_blk_tags = 1, .track_queue_depth = 1, @@ -5921,7 +5903,7 @@ struct scsi_host_template lpfc_vport_template = { .use_clustering = ENABLE_CLUSTERING, .shost_attrs = lpfc_vport_attrs, .max_sectors = 0xFFFF, - .change_queue_depth = lpfc_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .change_queue_type = scsi_change_queue_type, .use_blk_tags = 1, .track_queue_depth = 1, diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c index d56eb9d3d40c..f0987f22ea70 100644 --- a/drivers/scsi/megaraid/megaraid_mbox.c +++ b/drivers/scsi/megaraid/megaraid_mbox.c @@ -332,25 +332,6 @@ static struct device_attribute *megaraid_sdev_attrs[] = { NULL, }; -/** - * megaraid_change_queue_depth - Change the device's queue depth - * @sdev: scsi device struct - * @qdepth: depth to set - * @reason: calling context - * - * Return value: - * actual depth set - */ -static int megaraid_change_queue_depth(struct scsi_device *sdev, int qdepth, - int reason) -{ - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - - scsi_adjust_queue_depth(sdev, qdepth); - return sdev->queue_depth; -} - /* * Scsi host template for megaraid unified driver */ @@ -363,7 +344,7 @@ static struct scsi_host_template megaraid_template_g = { .eh_device_reset_handler = megaraid_reset_handler, .eh_bus_reset_handler = megaraid_reset_handler, .eh_host_reset_handler = megaraid_reset_handler, - .change_queue_depth = megaraid_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .use_clustering = ENABLE_CLUSTERING, .no_write_same = 1, .sdev_attrs = megaraid_sdev_attrs, diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index 69a9dd6ae04c..f05580e693d0 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -2591,17 +2591,6 @@ megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd) } } -static int megasas_change_queue_depth(struct scsi_device *sdev, - int queue_depth, int reason) -{ - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - - scsi_adjust_queue_depth(sdev, queue_depth); - - return queue_depth; -} - static ssize_t megasas_fw_crash_buffer_store(struct device *cdev, struct device_attribute *attr, const char *buf, size_t count) @@ -2766,7 +2755,7 @@ static struct scsi_host_template megasas_template = { .shost_attrs = megaraid_host_attrs, .bios_param = megasas_bios_param, .use_clustering = ENABLE_CLUSTERING, - .change_queue_depth = megasas_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .no_write_same = 1, }; diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index b006e1e9fcb8..12229de433bf 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -1222,20 +1222,18 @@ _scsih_adjust_queue_depth(struct scsi_device *sdev, int qdepth) max_depth = 1; if (qdepth > max_depth) qdepth = max_depth; - scsi_adjust_queue_depth(sdev, qdepth); + scsi_change_queue_depth(sdev, qdepth); } /** * _scsih_change_queue_depth - setting device queue depth * @sdev: scsi device struct * @qdepth: requested queue depth - * @reason: SCSI_QDEPTH_DEFAULT - * (see include/scsi/scsi_host.h for definition) * * Returns queue depth. */ static int -_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) +_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth) { _scsih_adjust_queue_depth(sdev, qdepth); @@ -2077,7 +2075,7 @@ _scsih_slave_configure(struct scsi_device *sdev) r_level, raid_device->handle, (unsigned long long)raid_device->wwid, raid_device->num_pds, ds); - _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT); + _scsih_change_queue_depth(sdev, qdepth); /* raid transport support */ if (!ioc->is_warpdrive) _scsih_set_level(sdev, raid_device->volume_type); @@ -2142,7 +2140,7 @@ _scsih_slave_configure(struct scsi_device *sdev) _scsih_display_sata_capabilities(ioc, handle, sdev); - _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT); + _scsih_change_queue_depth(sdev, qdepth); if (ssp_target) { sas_read_port_mode_page(sdev); diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index 568dcaed36cb..de175b9915e2 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -1090,20 +1090,18 @@ _scsih_adjust_queue_depth(struct scsi_device *sdev, int qdepth) max_depth = 1; if (qdepth > max_depth) qdepth = max_depth; - scsi_adjust_queue_depth(sdev, qdepth); + scsi_change_queue_depth(sdev, qdepth); } /** * _scsih_change_queue_depth - setting device queue depth * @sdev: scsi device struct * @qdepth: requested queue depth - * @reason: SCSI_QDEPTH_DEFAULT - * (see include/scsi/scsi_host.h for definition) * * Returns queue depth. */ static int -_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) +_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth) { _scsih_adjust_queue_depth(sdev, qdepth); @@ -1734,7 +1732,7 @@ _scsih_slave_configure(struct scsi_device *sdev) raid_device->num_pds, ds); - _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT); + _scsih_change_queue_depth(sdev, qdepth); /* raid transport support */ _scsih_set_level(sdev, raid_device->volume_type); @@ -1800,7 +1798,7 @@ _scsih_slave_configure(struct scsi_device *sdev) _scsih_display_sata_capabilities(ioc, handle, sdev); - _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT); + _scsih_change_queue_depth(sdev, qdepth); if (ssp_target) { sas_read_port_mode_page(sdev); diff --git a/drivers/scsi/ncr53c8xx.c b/drivers/scsi/ncr53c8xx.c index 9c331b7bfdcd..5b93ed810f6e 100644 --- a/drivers/scsi/ncr53c8xx.c +++ b/drivers/scsi/ncr53c8xx.c @@ -7997,7 +7997,7 @@ static int ncr53c8xx_slave_configure(struct scsi_device *device) if (depth_to_use > MAX_TAGS) depth_to_use = MAX_TAGS; - scsi_adjust_queue_depth(device, depth_to_use); + scsi_change_queue_depth(device, depth_to_use); /* ** Since the queue depth is not tunable under Linux, diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c index d8b9ba251fbd..b1b1f66b1ab7 100644 --- a/drivers/scsi/pmcraid.c +++ b/drivers/scsi/pmcraid.c @@ -285,23 +285,15 @@ static void pmcraid_slave_destroy(struct scsi_device *scsi_dev) * pmcraid_change_queue_depth - Change the device's queue depth * @scsi_dev: scsi device struct * @depth: depth to set - * @reason: calling context * * Return value * actual depth set */ -static int pmcraid_change_queue_depth(struct scsi_device *scsi_dev, int depth, - int reason) +static int pmcraid_change_queue_depth(struct scsi_device *scsi_dev, int depth) { - if (reason != SCSI_QDEPTH_DEFAULT) - return -EOPNOTSUPP; - if (depth > PMCRAID_MAX_CMD_PER_LUN) depth = PMCRAID_MAX_CMD_PER_LUN; - - scsi_adjust_queue_depth(scsi_dev, depth); - - return scsi_dev->queue_depth; + return scsi_change_queue_depth(scsi_dev, depth); } /** diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c index adedb6ef8eec..c68a66e8cfc1 100644 --- a/drivers/scsi/qla1280.c +++ b/drivers/scsi/qla1280.c @@ -1224,9 +1224,9 @@ qla1280_slave_configure(struct scsi_device *device) if (device->tagged_supported && (ha->bus_settings[bus].qtag_enables & (BIT_0 << target))) { - scsi_adjust_queue_depth(device, ha->bus_settings[bus].hiwat); + scsi_change_queue_depth(device, ha->bus_settings[bus].hiwat); } else { - scsi_adjust_queue_depth(device, default_depth); + scsi_change_queue_depth(device, default_depth); } nv->bus[bus].target[target].parameter.enable_sync = device->sdtr; diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 20049b176b64..6b4d9235368a 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -236,7 +236,6 @@ static int qla2xxx_eh_target_reset(struct scsi_cmnd *); static int qla2xxx_eh_bus_reset(struct scsi_cmnd *); static int qla2xxx_eh_host_reset(struct scsi_cmnd *); -static int qla2x00_change_queue_depth(struct scsi_device *, int, int); static void qla2x00_clear_drv_active(struct qla_hw_data *); static void qla2x00_free_device(scsi_qla_host_t *); static void qla83xx_disable_laser(scsi_qla_host_t *vha); @@ -258,7 +257,7 @@ struct scsi_host_template qla2xxx_driver_template = { .slave_destroy = qla2xxx_slave_destroy, .scan_finished = qla2xxx_scan_finished, .scan_start = qla2xxx_scan_start, - .change_queue_depth = qla2x00_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .change_queue_type = scsi_change_queue_type, .this_id = -1, .cmd_per_lun = 3, @@ -1406,7 +1405,7 @@ qla2xxx_slave_configure(struct scsi_device *sdev) if (IS_T10_PI_CAPABLE(vha->hw)) blk_queue_update_dma_alignment(sdev->request_queue, 0x7); - scsi_adjust_queue_depth(sdev, req->max_q_depth); + scsi_change_queue_depth(sdev, req->max_q_depth); return 0; } @@ -1416,13 +1415,6 @@ qla2xxx_slave_destroy(struct scsi_device *sdev) sdev->hostdata = NULL; } -static int -qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) -{ - scsi_adjust_queue_depth(sdev, qdepth); - return sdev->queue_depth; -} - /** * qla2x00_config_dma_addressing() - Configure OS DMA addressing method. * @ha: HA context diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 2bfde373ea2b..6d25879d87c8 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -201,7 +201,7 @@ static struct scsi_host_template qla4xxx_driver_template = { .eh_timed_out = qla4xxx_eh_cmd_timed_out, .slave_alloc = qla4xxx_slave_alloc, - .change_queue_depth = iscsi_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .this_id = -1, .cmd_per_lun = 3, @@ -9059,7 +9059,7 @@ static int qla4xxx_slave_alloc(struct scsi_device *sdev) if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) queue_depth = ql4xmaxqdepth; - scsi_adjust_queue_depth(sdev, queue_depth); + scsi_change_queue_depth(sdev, queue_depth); return 0; } diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index 106fa2f886d2..5ea15fc7d2fb 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -742,30 +742,18 @@ void scsi_finish_command(struct scsi_cmnd *cmd) } /** - * scsi_adjust_queue_depth - Let low level drivers change a device's queue depth + * scsi_change_queue_depth - change a device's queue depth * @sdev: SCSI Device in question - * @tags: Number of tags allowed if tagged queueing enabled, - * or number of commands the low level driver can - * queue up in non-tagged mode (as per cmd_per_lun). + * @depth: number of commands allowed to be queued to the driver * - * Returns: Nothing - * - * Lock Status: None held on entry - * - * Notes: Low level drivers may call this at any time and we will do - * the right thing depending on whether or not the device is - * currently active and whether or not it even has the - * command blocks built yet. + * Sets the device queue depth and returns the new value. */ -void scsi_adjust_queue_depth(struct scsi_device *sdev, int tags) +int scsi_change_queue_depth(struct scsi_device *sdev, int depth) { unsigned long flags; - /* - * refuse to set tagged depth to an unworkable size - */ - if (tags <= 0) - return; + if (depth <= 0) + goto out; spin_lock_irqsave(sdev->request_queue->queue_lock, flags); @@ -780,15 +768,17 @@ void scsi_adjust_queue_depth(struct scsi_device *sdev, int tags) */ if (!shost_use_blk_mq(sdev->host) && !sdev->host->bqt) { if (blk_queue_tagged(sdev->request_queue) && - blk_queue_resize_tags(sdev->request_queue, tags) != 0) - goto out; + blk_queue_resize_tags(sdev->request_queue, depth) != 0) + goto out_unlock; } - sdev->queue_depth = tags; - out: + sdev->queue_depth = depth; +out_unlock: spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); +out: + return sdev->queue_depth; } -EXPORT_SYMBOL(scsi_adjust_queue_depth); +EXPORT_SYMBOL(scsi_change_queue_depth); /** * scsi_track_queue_full - track QUEUE_FULL events to adjust queue depth @@ -833,12 +823,11 @@ int scsi_track_queue_full(struct scsi_device *sdev, int depth) if (sdev->last_queue_full_depth < 8) { /* Drop back to untagged */ scsi_set_tag_type(sdev, 0); - scsi_adjust_queue_depth(sdev, sdev->host->cmd_per_lun); + scsi_change_queue_depth(sdev, sdev->host->cmd_per_lun); return -1; } - scsi_adjust_queue_depth(sdev, depth); - return depth; + return scsi_change_queue_depth(sdev, depth); } EXPORT_SYMBOL(scsi_track_queue_full); diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index 84cf82e0782d..ce71b6d4393c 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -4469,7 +4469,7 @@ sdebug_queuecommand_lock_or_not(struct Scsi_Host *shost, struct scsi_cmnd *cmd) } static int -sdebug_change_qdepth(struct scsi_device *sdev, int qdepth, int reason) +sdebug_change_qdepth(struct scsi_device *sdev, int qdepth) { int num_in_q = 0; unsigned long iflags; @@ -4489,7 +4489,7 @@ sdebug_change_qdepth(struct scsi_device *sdev, int qdepth, int reason) /* allow to exceed max host queued_arr elements for testing */ if (qdepth > SCSI_DEBUG_CANQUEUE + 10) qdepth = SCSI_DEBUG_CANQUEUE + 10; - scsi_adjust_queue_depth(sdev, qdepth); + scsi_change_queue_depth(sdev, qdepth); if (SCSI_DEBUG_OPT_Q_NOISE & scsi_debug_opts) { sdev_printk(KERN_INFO, sdev, diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 2d0f5155ee51..1f63559184b9 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -632,7 +632,7 @@ static void scsi_handle_queue_ramp_up(struct scsi_device *sdev) tmp_sdev->queue_depth == sdev->max_queue_depth) continue; - scsi_adjust_queue_depth(tmp_sdev, tmp_sdev->queue_depth + 1); + scsi_change_queue_depth(tmp_sdev, tmp_sdev->queue_depth + 1); sdev->last_queue_ramp_up = jiffies; } } diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index d97597e6337e..0af713375db5 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -292,7 +292,7 @@ static struct scsi_device *scsi_alloc_sdev(struct scsi_target *starget, blk_queue_init_tags(sdev->request_queue, sdev->host->cmd_per_lun, shost->bqt); } - scsi_adjust_queue_depth(sdev, sdev->host->cmd_per_lun); + scsi_change_queue_depth(sdev, sdev->host->cmd_per_lun); scsi_sysfs_device_initialize(sdev); diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c index bffd5abdcd1f..1cb64a8e18c9 100644 --- a/drivers/scsi/scsi_sysfs.c +++ b/drivers/scsi/scsi_sysfs.c @@ -880,8 +880,7 @@ sdev_store_queue_depth(struct device *dev, struct device_attribute *attr, if (depth < 1 || depth > sht->can_queue) return -EINVAL; - retval = sht->change_queue_depth(sdev, depth, - SCSI_QDEPTH_DEFAULT); + retval = sht->change_queue_depth(sdev, depth); if (retval < 0) return retval; diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c index ff8befbdf17c..e3ba251fb6e7 100644 --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -1429,7 +1429,7 @@ static void storvsc_device_destroy(struct scsi_device *sdevice) static int storvsc_device_configure(struct scsi_device *sdevice) { - scsi_adjust_queue_depth(sdevice, STORVSC_MAX_IO_REQUESTS); + scsi_change_queue_depth(sdevice, STORVSC_MAX_IO_REQUESTS); blk_queue_max_segment_size(sdevice->request_queue, PAGE_SIZE); diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c index 3557b385251a..5d00e514ff28 100644 --- a/drivers/scsi/sym53c8xx_2/sym_glue.c +++ b/drivers/scsi/sym53c8xx_2/sym_glue.c @@ -820,7 +820,7 @@ static int sym53c8xx_slave_configure(struct scsi_device *sdev) if (reqtags > SYM_CONF_MAX_TAG) reqtags = SYM_CONF_MAX_TAG; depth_to_use = reqtags ? reqtags : 1; - scsi_adjust_queue_depth(sdev, depth_to_use); + scsi_change_queue_depth(sdev, depth_to_use); lp->s.scdev_depth = depth_to_use; sym_tune_dev_queuing(tp, sdev->lun, reqtags); diff --git a/drivers/scsi/tmscsim.c b/drivers/scsi/tmscsim.c index 844c9a048c00..6c3c2cef3891 100644 --- a/drivers/scsi/tmscsim.c +++ b/drivers/scsi/tmscsim.c @@ -2194,7 +2194,7 @@ static int dc390_slave_configure(struct scsi_device *sdev) if (sdev->tagged_supported && (dcb->DevMode & TAG_QUEUEING_)) { dcb->SyncMode |= EN_TAG_QUEUEING; - scsi_adjust_queue_depth(sdev, acb->TagMaxNum); + scsi_change_queue_depth(sdev, acb->TagMaxNum); } return 0; diff --git a/drivers/scsi/u14-34f.c b/drivers/scsi/u14-34f.c index aa0f4035afaf..14eb50b95a1e 100644 --- a/drivers/scsi/u14-34f.c +++ b/drivers/scsi/u14-34f.c @@ -696,25 +696,25 @@ static int u14_34f_slave_configure(struct scsi_device *dev) { if (TLDEV(dev->type) && dev->tagged_supported) if (tag_mode == TAG_SIMPLE) { - scsi_adjust_queue_depth(dev, tqd); + scsi_change_queue_depth(dev, tqd); tag_suffix = ", simple tags"; } else if (tag_mode == TAG_ORDERED) { - scsi_adjust_queue_depth(dev, tqd); + scsi_change_queue_depth(dev, tqd); tag_suffix = ", ordered tags"; } else { - scsi_adjust_queue_depth(dev, tqd); + scsi_change_queue_depth(dev, tqd); tag_suffix = ", no tags"; } else if (TLDEV(dev->type) && linked_comm) { - scsi_adjust_queue_depth(dev, tqd); + scsi_change_queue_depth(dev, tqd); tag_suffix = ", untagged"; } else { - scsi_adjust_queue_depth(dev, utqd); + scsi_change_queue_depth(dev, utqd); tag_suffix = ""; } diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index e96ab253e3e5..0c4f98ee6047 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -2695,7 +2695,7 @@ static void ufshcd_set_queue_depth(struct scsi_device *sdev) dev_dbg(hba->dev, "%s: activate tcq with queue depth %d\n", __func__, lun_qdepth); - scsi_adjust_queue_depth(sdev, lun_qdepth); + scsi_change_queue_depth(sdev, lun_qdepth); } /* @@ -2787,21 +2787,16 @@ static int ufshcd_slave_alloc(struct scsi_device *sdev) * ufshcd_change_queue_depth - change queue depth * @sdev: pointer to SCSI device * @depth: required depth to set - * @reason: reason for changing the depth * - * Change queue depth according to the reason and make sure - * the max. limits are not crossed. + * Change queue depth and make sure the max. limits are not crossed. */ -static int ufshcd_change_queue_depth(struct scsi_device *sdev, - int depth, int reason) +static int ufshcd_change_queue_depth(struct scsi_device *sdev, int depth) { struct ufs_hba *hba = shost_priv(sdev->host); if (depth > hba->nutrs) depth = hba->nutrs; - - scsi_adjust_queue_depth(sdev, depth); - return depth; + return scsi_change_queue_depth(sdev, depth); } /** diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c index 0f7e4c7ff8c2..22e70126425b 100644 --- a/drivers/scsi/virtio_scsi.c +++ b/drivers/scsi/virtio_scsi.c @@ -682,17 +682,13 @@ static int virtscsi_device_reset(struct scsi_cmnd *sc) * virtscsi_change_queue_depth() - Change a virtscsi target's queue depth * @sdev: Virtscsi target whose queue depth to change * @qdepth: New queue depth - * @reason: Reason for the queue depth change. */ -static int virtscsi_change_queue_depth(struct scsi_device *sdev, - int qdepth, - int reason) +static int virtscsi_change_queue_depth(struct scsi_device *sdev, int qdepth) { struct Scsi_Host *shost = sdev->host; int max_depth = shost->cmd_per_lun; - scsi_adjust_queue_depth(sdev, min(max_depth, qdepth)); - return sdev->queue_depth; + return scsi_change_queue_depth(sdev, min(max_depth, qdepth)); } static int virtscsi_abort(struct scsi_cmnd *sc) diff --git a/drivers/scsi/vmw_pvscsi.c b/drivers/scsi/vmw_pvscsi.c index 03ad24be728e..ade1f1d013b1 100644 --- a/drivers/scsi/vmw_pvscsi.c +++ b/drivers/scsi/vmw_pvscsi.c @@ -504,19 +504,11 @@ static void pvscsi_setup_all_rings(const struct pvscsi_adapter *adapter) } } -static int pvscsi_change_queue_depth(struct scsi_device *sdev, - int qdepth, - int reason) +static int pvscsi_change_queue_depth(struct scsi_device *sdev, int qdepth) { - if (reason != SCSI_QDEPTH_DEFAULT) - /* - * We support only changing default. - */ - return -EOPNOTSUPP; - if (!sdev->tagged_supported) qdepth = 1; - scsi_adjust_queue_depth(sdev, qdepth); + scsi_change_queue_depth(sdev, qdepth); if (sdev->inquiry_len > 7) sdev_printk(KERN_INFO, sdev, diff --git a/drivers/scsi/wd7000.c b/drivers/scsi/wd7000.c index 32674236fec7..f94d73611ab4 100644 --- a/drivers/scsi/wd7000.c +++ b/drivers/scsi/wd7000.c @@ -1653,7 +1653,6 @@ static struct scsi_host_template driver_template = { .can_queue = WD7000_Q, .this_id = 7, .sg_tablesize = WD7000_SG, - .cmd_per_lun = 1, .unchecked_isa_dma = 1, .use_clustering = ENABLE_CLUSTERING, }; diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index 670b75a62243..4d1b7224a7f2 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -110,19 +110,6 @@ static struct device_driver tcm_loop_driverfs = { */ struct device *tcm_loop_primary; -/* - * Copied from drivers/scsi/libfc/fc_fcp.c:fc_change_queue_depth() and - * drivers/scsi/libiscsi.c:iscsi_change_queue_depth() - */ -static int tcm_loop_change_queue_depth( - struct scsi_device *sdev, - int depth, - int reason) -{ - scsi_adjust_queue_depth(sdev, depth); - return sdev->queue_depth; -} - static void tcm_loop_submission_work(struct work_struct *work) { struct tcm_loop_cmd *tl_cmd = @@ -397,7 +384,7 @@ static struct scsi_host_template tcm_loop_driver_template = { .proc_name = "tcm_loopback", .name = "TCM_Loopback", .queuecommand = tcm_loop_queuecommand, - .change_queue_depth = tcm_loop_change_queue_depth, + .change_queue_depth = scsi_change_queue_depth, .change_queue_type = scsi_change_queue_type, .eh_abort_handler = tcm_loop_abort_task, .eh_device_reset_handler = tcm_loop_device_reset, diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index 33f211b56a42..4047edfb64e1 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -799,7 +799,7 @@ static int uas_slave_configure(struct scsi_device *sdev) if (devinfo->flags & US_FL_NO_REPORT_OPCODES) sdev->no_report_opcodes = 1; - scsi_adjust_queue_depth(sdev, devinfo->qdepth - 2); + scsi_change_queue_depth(sdev, devinfo->qdepth - 2); return 0; } diff --git a/include/linux/libata.h b/include/linux/libata.h index bd5fefeaf548..bfbc817c34ee 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -1191,9 +1191,9 @@ extern void ata_scsi_unlock_native_capacity(struct scsi_device *sdev); extern int ata_scsi_slave_config(struct scsi_device *sdev); extern void ata_scsi_slave_destroy(struct scsi_device *sdev); extern int ata_scsi_change_queue_depth(struct scsi_device *sdev, - int queue_depth, int reason); + int queue_depth); extern int __ata_change_queue_depth(struct ata_port *ap, struct scsi_device *sdev, - int queue_depth, int reason); + int queue_depth); extern struct ata_device *ata_dev_pair(struct ata_device *adev); extern int ata_do_set_mode(struct ata_link *link, struct ata_device **r_failed_dev); extern void ata_scsi_port_error_handler(struct Scsi_Host *host, struct ata_port *ap); diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h index 2e0cf568a9c1..93d14daf0994 100644 --- a/include/scsi/libfc.h +++ b/include/scsi/libfc.h @@ -1105,7 +1105,6 @@ int fc_eh_abort(struct scsi_cmnd *); int fc_eh_device_reset(struct scsi_cmnd *); int fc_eh_host_reset(struct scsi_cmnd *); int fc_slave_alloc(struct scsi_device *); -int fc_change_queue_depth(struct scsi_device *, int qdepth, int reason); /* * ELS/CT interface diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h index 728c9ad9feb0..4d1c46aac331 100644 --- a/include/scsi/libiscsi.h +++ b/include/scsi/libiscsi.h @@ -378,8 +378,6 @@ struct iscsi_host { /* * scsi host template */ -extern int iscsi_change_queue_depth(struct scsi_device *sdev, int depth, - int reason); extern int iscsi_eh_abort(struct scsi_cmnd *sc); extern int iscsi_eh_recover_target(struct scsi_cmnd *sc); extern int iscsi_eh_session_reset(struct scsi_cmnd *sc); diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h index ef7872c20da9..1f8b33ec612f 100644 --- a/include/scsi/libsas.h +++ b/include/scsi/libsas.h @@ -704,8 +704,7 @@ int sas_queue_up(struct sas_task *task); extern int sas_queuecommand(struct Scsi_Host * ,struct scsi_cmnd *); extern int sas_target_alloc(struct scsi_target *); extern int sas_slave_configure(struct scsi_device *); -extern int sas_change_queue_depth(struct scsi_device *, int new_depth, - int reason); +extern int sas_change_queue_depth(struct scsi_device *, int new_depth); extern int sas_change_queue_type(struct scsi_device *, int qt); extern int sas_bios_param(struct scsi_device *, struct block_device *, diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 0aeaa003c3c1..6364e23454dd 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -380,7 +380,7 @@ extern struct scsi_device *__scsi_iterate_devices(struct Scsi_Host *, #define __shost_for_each_device(sdev, shost) \ list_for_each_entry((sdev), &((shost)->__devices), siblings) -extern void scsi_adjust_queue_depth(struct scsi_device *, int); +extern int scsi_change_queue_depth(struct scsi_device *, int); extern int scsi_track_queue_full(struct scsi_device *, int); extern int scsi_set_medium_removal(struct scsi_device *, char); diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index a0b13a5cd25e..c8a462ef9a4e 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -46,10 +46,6 @@ struct blk_queue_tags; #define DISABLE_CLUSTERING 0 #define ENABLE_CLUSTERING 1 -enum { - SCSI_QDEPTH_DEFAULT, /* default requested change, e.g. from sysfs */ -}; - struct scsi_host_template { struct module *module; const char *name; @@ -193,7 +189,7 @@ struct scsi_host_template { * Things currently recommended to be handled at this time include: * * 1. Setting the device queue depth. Proper setting of this is - * described in the comments for scsi_adjust_queue_depth. + * described in the comments for scsi_change_queue_depth. * 2. Determining if the device supports the various synchronous * negotiation protocols. The device struct will already have * responded to INQUIRY and the results of the standard items @@ -279,7 +275,7 @@ struct scsi_host_template { * * Status: OPTIONAL */ - int (* change_queue_depth)(struct scsi_device *, int, int); + int (* change_queue_depth)(struct scsi_device *, int); /* * Fill in this function to allow the changing of tag types -- cgit v1.2.3-59-g8ed1b From 71bd849dbac99b587cb8a2d34061ecb6abe77c84 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Mon, 24 Nov 2014 15:37:30 +0100 Subject: tmscsim: replace by am53c974 driver The am53c974 is a re-implementation of the tmscsim driver, and provides the same functionality. So remove the tmscsim driver and make am53c974 an alias to tmscsim. Acked-by: Guennadi Liakhovetski Signed-off-by: Hannes Reinecke Signed-off-by: Christoph Hellwig --- MAINTAINERS | 7 +- drivers/scsi/Kconfig | 16 - drivers/scsi/Makefile | 1 - drivers/scsi/am53c974.c | 1 + drivers/scsi/tmscsim.c | 2626 ----------------------------------------------- drivers/scsi/tmscsim.h | 549 ---------- 6 files changed, 4 insertions(+), 3196 deletions(-) delete mode 100644 drivers/scsi/tmscsim.c delete mode 100644 drivers/scsi/tmscsim.h (limited to 'drivers/scsi/tmscsim.c') diff --git a/MAINTAINERS b/MAINTAINERS index 1522777cfc66..921090848a29 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2862,11 +2862,10 @@ F: Documentation/networking/dmfe.txt F: drivers/net/ethernet/dec/tulip/dmfe.c DC390/AM53C974 SCSI driver -M: Kurt Garloff -W: http://www.garloff.de/kurt/linux/dc390/ -M: Guennadi Liakhovetski +M: Hannes Reinecke +L: linux-scsi@vger.kernel.org S: Maintained -F: drivers/scsi/tmscsim.* +F: drivers/scsi/am53c974.c DC395x SCSI driver M: Oliver Neukum diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index 519c3ef72fd5..f871a80f38ee 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -1341,22 +1341,6 @@ config SCSI_DC395x To compile this driver as a module, choose M here: the module will be called dc395x. -config SCSI_DC390T - tristate "Tekram DC390(T) and Am53/79C974 SCSI support" - depends on PCI && SCSI - ---help--- - This driver supports PCI SCSI host adapters based on the Am53C974A - chip, e.g. Tekram DC390(T), DawiControl 2974 and some onboard - PCscsi/PCnet (Am53/79C974) solutions. - - Documentation can be found in . - - Note that this driver does NOT support Tekram DC390W/U/F, which are - based on NCR/Symbios chips. Use "NCR53C8XX SCSI support" for those. - - To compile this driver as a module, choose M here: the - module will be called tmscsim. - config SCSI_AM53C974 tristate "Tekram DC390(T) and Am53/79C974 SCSI support (new driver)" depends on PCI && SCSI diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile index 79a6571e33f9..a9f3fa857610 100644 --- a/drivers/scsi/Makefile +++ b/drivers/scsi/Makefile @@ -100,7 +100,6 @@ obj-$(CONFIG_SCSI_EATA_PIO) += eata_pio.o obj-$(CONFIG_SCSI_7000FASST) += wd7000.o obj-$(CONFIG_SCSI_EATA) += eata.o obj-$(CONFIG_SCSI_DC395x) += dc395x.o -obj-$(CONFIG_SCSI_DC390T) += tmscsim.o obj-$(CONFIG_SCSI_AM53C974) += esp_scsi.o am53c974.o obj-$(CONFIG_MEGARAID_LEGACY) += megaraid.o obj-$(CONFIG_MEGARAID_NEWGEN) += megaraid/ diff --git a/drivers/scsi/am53c974.c b/drivers/scsi/am53c974.c index 25f06196643e..aa3e2c7cd83c 100644 --- a/drivers/scsi/am53c974.c +++ b/drivers/scsi/am53c974.c @@ -574,6 +574,7 @@ MODULE_DESCRIPTION("AM53C974 SCSI driver"); MODULE_AUTHOR("Hannes Reinecke "); MODULE_LICENSE("GPL"); MODULE_VERSION(DRV_MODULE_VERSION); +MODULE_ALIAS("tmscsim"); module_param(am53c974_debug, bool, 0644); MODULE_PARM_DESC(am53c974_debug, "Enable debugging"); diff --git a/drivers/scsi/tmscsim.c b/drivers/scsi/tmscsim.c deleted file mode 100644 index 6c3c2cef3891..000000000000 --- a/drivers/scsi/tmscsim.c +++ /dev/null @@ -1,2626 +0,0 @@ -/************************************************************************ - * FILE NAME : TMSCSIM.C * - * BY : C.L. Huang, ching@tekram.com.tw * - * Description: Device Driver for Tekram DC-390(T) PCI SCSI * - * Bus Master Host Adapter * - * (C)Copyright 1995-1996 Tekram Technology Co., Ltd. * - ************************************************************************ - * (C) Copyright: put under GNU GPL in 10/96 * - * (see Documentation/scsi/tmscsim.txt) * - ************************************************************************ - * $Id: tmscsim.c,v 2.60.2.30 2000/12/20 01:07:12 garloff Exp $ * - * Enhancements and bugfixes by * - * Kurt Garloff * - ************************************************************************ - * HISTORY: * - * * - * REV# DATE NAME DESCRIPTION * - * 1.00 96/04/24 CLH First release * - * 1.01 96/06/12 CLH Fixed bug of Media Change for Removable * - * Device, scan all LUN. Support Pre2.0.10 * - * 1.02 96/06/18 CLH Fixed bug of Command timeout ... * - * 1.03 96/09/25 KG Added tmscsim_proc_info() * - * 1.04 96/10/11 CLH Updating for support KV 2.0.x * - * 1.05 96/10/18 KG Fixed bug in DC390_abort(null ptr deref)* - * 1.06 96/10/25 KG Fixed module support * - * 1.07 96/11/09 KG Fixed tmscsim_proc_info() * - * 1.08 96/11/18 KG Fixed null ptr in DC390_Disconnect() * - * 1.09 96/11/30 KG Added register the allocated IO space * - * 1.10 96/12/05 CLH Modified tmscsim_proc_info(), and reset * - * pending interrupt in DC390_detect() * - * 1.11 97/02/05 KG/CLH Fixeds problem with partitions greater * - * than 1GB * - * 1.12 98/02/15 MJ Rewritten PCI probing * - * 1.13 98/04/08 KG Support for non DC390, __initfunc decls,* - * changed max devs from 10 to 16 * - * 1.14a 98/05/05 KG Dynamic DCB allocation, add-single-dev * - * for LUNs if LUN_SCAN (BIOS) not set * - * runtime config using /proc interface * - * 1.14b 98/05/06 KG eliminated cli (); sti (); spinlocks * - * 1.14c 98/05/07 KG 2.0.x compatibility * - * 1.20a 98/05/07 KG changed names of funcs to be consistent * - * DC390_ (entry points), dc390_ (internal)* - * reworked locking * - * 1.20b 98/05/12 KG bugs: version, kfree, _ctmp * - * debug output * - * 1.20c 98/05/12 KG bugs: kfree, parsing, EEpromDefaults * - * 1.20d 98/05/14 KG bugs: list linkage, clear flag after * - * reset on startup, code cleanup * - * 1.20e 98/05/15 KG spinlock comments, name space cleanup * - * pLastDCB now part of ACB structure * - * added stats, timeout for 2.1, TagQ bug * - * RESET and INQUIRY interface commands * - * 1.20f 98/05/18 KG spinlocks fixes, max_lun fix, free DCBs * - * for missing LUNs, pending int * - * 1.20g 98/05/19 KG Clean up: Avoid short * - * 1.20h 98/05/21 KG Remove AdaptSCSIID, max_lun ... * - * 1.20i 98/05/21 KG Aiiie: Bug with TagQMask * - * 1.20j 98/05/24 KG Handle STAT_BUSY, handle pACB->pLinkDCB * - * == 0 in remove_dev and DoingSRB_Done * - * 1.20k 98/05/25 KG DMA_INT (experimental) * - * 1.20l 98/05/27 KG remove DMA_INT; DMA_IDLE cmds added; * - * 1.20m 98/06/10 KG glitch configurable; made some global * - * vars part of ACB; use DC390_readX * - * 1.20n 98/06/11 KG startup params * - * 1.20o 98/06/15 KG added TagMaxNum to boot/module params * - * Device Nr -> Idx, TagMaxNum power of 2 * - * 1.20p 98/06/17 KG Docu updates. Reset depends on settings * - * pci_set_master added; 2.0.xx: pcibios_* * - * used instead of MechNum things ... * - * 1.20q 98/06/23 KG Changed defaults. Added debug code for * - * removable media and fixed it. TagMaxNum * - * fixed for DC390. Locking: ACB, DRV for * - * better IRQ sharing. Spelling: Queueing * - * Parsing and glitch_cfg changes. Display * - * real SyncSpeed value. Made DisConn * - * functional (!) * - * 1.20r 98/06/30 KG Debug macros, allow disabling DsCn, set * - * BIT4 in CtrlR4, EN_PAGE_INT, 2.0 module * - * param -1 fixed. * - * 1.20s 98/08/20 KG Debug info on abort(), try to check PCI,* - * phys_to_bus instead of phys_to_virt, * - * fixed sel. process, fixed locking, * - * added MODULE_XXX infos, changed IRQ * - * request flags, disable DMA_INT * - * 1.20t 98/09/07 KG TagQ report fixed; Write Erase DMA Stat;* - * initfunc -> __init; better abort; * - * Timeout for XFER_DONE & BLAST_COMPLETE; * - * Allow up to 33 commands being processed * - * 2.0a 98/10/14 KG Max Cmnds back to 17. DMA_Stat clearing * - * all flags. Clear within while() loops * - * in DataIn_0/Out_0. Null ptr in dumpinfo * - * for pSRB==0. Better locking during init.* - * bios_param() now respects part. table. * - * 2.0b 98/10/24 KG Docu fixes. Timeout Msg in DMA Blast. * - * Disallow illegal idx in INQUIRY/REMOVE * - * 2.0c 98/11/19 KG Cleaned up detect/init for SMP boxes, * - * Write Erase DMA (1.20t) caused problems * - * 2.0d 98/12/25 KG Christmas release ;-) Message handling * - * completely reworked. Handle target ini- * - * tiated SDTR correctly. * - * 2.0d1 99/01/25 KG Try to handle RESTORE_PTR * - * 2.0d2 99/02/08 KG Check for failure of kmalloc, correct * - * inclusion of scsicam.h, DelayReset * - * 2.0d3 99/05/31 KG DRIVER_OK -> DID_OK, DID_NO_CONNECT, * - * detect Target mode and warn. * - * pcmd->result handling cleaned up. * - * 2.0d4 99/06/01 KG Cleaned selection process. Found bug * - * which prevented more than 16 tags. Now: * - * 24. SDTR cleanup. Cleaner multi-LUN * - * handling. Don't modify ControlRegs/FIFO * - * when connected. * - * 2.0d5 99/06/01 KG Clear DevID, Fix INQUIRY after cfg chg. * - * 2.0d6 99/06/02 KG Added ADD special command to allow cfg. * - * before detection. Reset SYNC_NEGO_DONE * - * after a bus reset. * - * 2.0d7 99/06/03 KG Fixed bugs wrt add,remove commands * - * 2.0d8 99/06/04 KG Removed copying of cmnd into CmdBlock. * - * Fixed Oops in _release(). * - * 2.0d9 99/06/06 KG Also tag queue INQUIRY, T_U_R, ... * - * Allow arb. no. of Tagged Cmnds. Max 32 * - * 2.0d1099/06/20 KG TagMaxNo changes now honoured! Queueing * - * clearified (renamed ..) TagMask handling* - * cleaned. * - * 2.0d1199/06/28 KG cmd->result now identical to 2.0d2 * - * 2.0d1299/07/04 KG Changed order of processing in IRQ * - * 2.0d1399/07/05 KG Don't update DCB fields if removed * - * 2.0d1499/07/05 KG remove_dev: Move kfree() to the end * - * 2.0d1599/07/12 KG use_new_eh_code: 0, ULONG -> UINT where * - * appropriate * - * 2.0d1699/07/13 KG Reenable StartSCSI interrupt, Retry msg * - * 2.0d1799/07/15 KG Remove debug msg. Disable recfg. when * - * there are queued cmnds * - * 2.0d1899/07/18 KG Selection timeout: Don't requeue * - * 2.0d1999/07/18 KG Abort: Only call scsi_done if dequeued * - * 2.0d2099/07/19 KG Rst_Detect: DoingSRB_Done * - * 2.0d2199/08/15 KG dev_id for request/free_irq, cmnd[0] for* - * RETRY, SRBdone does DID_ABORT for the * - * cmd passed by DC390_reset() * - * 2.0d2299/08/25 KG dev_id fixed. can_queue: 42 * - * 2.0d2399/08/25 KG Removed some debugging code. dev_id * - * now is set to pACB. Use u8,u16,u32. * - * 2.0d2499/11/14 KG Unreg. I/O if failed IRQ alloc. Call * - * done () w/ DID_BAD_TARGET in case of * - * missing DCB. We are old EH!! * - * 2.0d2500/01/15 KG 2.3.3x compat from Andreas Schultz * - * set unique_id. Disable RETRY message. * - * 2.0d2600/01/29 KG Go to new EH. * - * 2.0d2700/01/31 KG ... but maintain 2.0 compat. * - * and fix DCB freeing * - * 2.0d2800/02/14 KG Queue statistics fixed, dump special cmd* - * Waiting_Timer for failed StartSCSI * - * New EH: Don't return cmnds to ML on RST * - * Use old EH (don't have new EH fns yet) * - * Reset: Unlock, but refuse to queue * - * 2.3 __setup function * - * 2.0e 00/05/22 KG Return residual for 2.3 * - * 2.0e1 00/05/25 KG Compile fixes for 2.3.99 * - * 2.0e2 00/05/27 KG Jeff Garzik's pci_enable_device() * - * 2.0e3 00/09/29 KG Some 2.4 changes. Don't try Sync Nego * - * before INQUIRY has reported ability. * - * Recognise INQUIRY as scanning command. * - * 2.0e4 00/10/13 KG Allow compilation into 2.4 kernel * - * 2.0e5 00/11/17 KG Store Inq.flags in DCB * - * 2.0e6 00/11/22 KG 2.4 init function (Thx to O.Schumann) * - * 2.4 PCI device table (Thx to A.Richter) * - * 2.0e7 00/11/28 KG Allow overriding of BIOS settings * - * 2.0f 00/12/20 KG Handle failed INQUIRYs during scan * - * 2.1a 03/11/29 GL, KG Initial fixing for 2.6. Convert to * - * use the current PCI-mapping API, update * - * command-queuing. * - * 2.1b 04/04/13 GL Fix for 64-bit platforms * - * 2.1b1 04/01/31 GL (applied 05.04) Remove internal * - * command-queuing. * - * 2.1b2 04/02/01 CH (applied 05.04) Fix error-handling * - * 2.1c 04/05/23 GL Update to use the new pci_driver API, * - * some scsi EH updates, more cleanup. * - * 2.1d 04/05/27 GL Moved setting of scan_devices to * - * slave_alloc/_configure/_destroy, as * - * suggested by CH. * - ***********************************************************************/ - -/* DEBUG options */ -//#define DC390_DEBUG0 -//#define DC390_DEBUG1 -//#define DC390_DCBDEBUG -//#define DC390_PARSEDEBUG -//#define DC390_REMOVABLEDEBUG -//#define DC390_LOCKDEBUG - -//#define NOP do{}while(0) -#define C_NOP - -/* Debug definitions */ -#ifdef DC390_DEBUG0 -# define DEBUG0(x) x -#else -# define DEBUG0(x) C_NOP -#endif -#ifdef DC390_DEBUG1 -# define DEBUG1(x) x -#else -# define DEBUG1(x) C_NOP -#endif -#ifdef DC390_DCBDEBUG -# define DCBDEBUG(x) x -#else -# define DCBDEBUG(x) C_NOP -#endif -#ifdef DC390_PARSEDEBUG -# define PARSEDEBUG(x) x -#else -# define PARSEDEBUG(x) C_NOP -#endif -#ifdef DC390_REMOVABLEDEBUG -# define REMOVABLEDEBUG(x) x -#else -# define REMOVABLEDEBUG(x) C_NOP -#endif -#define DCBDEBUG1(x) C_NOP - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include - -#define DC390_BANNER "Tekram DC390/AM53C974" -#define DC390_VERSION "2.1d 2004-05-27" - -#define PCI_DEVICE_ID_AMD53C974 PCI_DEVICE_ID_AMD_SCSI - -#include "tmscsim.h" - - -static void dc390_DataOut_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_DataIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_Command_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_Status_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_MsgOut_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_MsgIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_DataOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_DataInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_CommandPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_StatusPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_MsgOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_MsgInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_Nop_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_Nop_1( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); - -static void dc390_SetXferRate( struct dc390_acb* pACB, struct dc390_dcb* pDCB ); -static void dc390_Disconnect( struct dc390_acb* pACB ); -static void dc390_Reselect( struct dc390_acb* pACB ); -static void dc390_SRBdone( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB ); -static void dc390_ScsiRstDetect( struct dc390_acb* pACB ); -static void dc390_EnableMsgOut_Abort(struct dc390_acb*, struct dc390_srb*); -static void dc390_dumpinfo(struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB); -static void dc390_ResetDevParam(struct dc390_acb* pACB); - -static u32 dc390_laststatus = 0; -static u8 dc390_adapterCnt = 0; - -static int disable_clustering; -module_param(disable_clustering, int, S_IRUGO); -MODULE_PARM_DESC(disable_clustering, "If you experience problems with your devices, try setting to 1"); - -/* Startup values, to be overriden on the commandline */ -static int tmscsim[] = {-2, -2, -2, -2, -2, -2}; - -module_param_array(tmscsim, int, NULL, 0); -MODULE_PARM_DESC(tmscsim, "Host SCSI ID, Speed (0=10MHz), Device Flags, Adapter Flags, Max Tags (log2(tags)-1), DelayReset (s)"); -MODULE_AUTHOR("C.L. Huang / Kurt Garloff"); -MODULE_DESCRIPTION("SCSI host adapter driver for Tekram DC390 and other AMD53C974A based PCI SCSI adapters"); -MODULE_LICENSE("GPL"); -MODULE_SUPPORTED_DEVICE("sd,sr,sg,st"); - -static void *dc390_phase0[]={ - dc390_DataOut_0, - dc390_DataIn_0, - dc390_Command_0, - dc390_Status_0, - dc390_Nop_0, - dc390_Nop_0, - dc390_MsgOut_0, - dc390_MsgIn_0, - dc390_Nop_1 - }; - -static void *dc390_phase1[]={ - dc390_DataOutPhase, - dc390_DataInPhase, - dc390_CommandPhase, - dc390_StatusPhase, - dc390_Nop_0, - dc390_Nop_0, - dc390_MsgOutPhase, - dc390_MsgInPhase, - dc390_Nop_1 - }; - -#ifdef DC390_DEBUG1 -static char* dc390_p0_str[] = { - "dc390_DataOut_0", - "dc390_DataIn_0", - "dc390_Command_0", - "dc390_Status_0", - "dc390_Nop_0", - "dc390_Nop_0", - "dc390_MsgOut_0", - "dc390_MsgIn_0", - "dc390_Nop_1" - }; - -static char* dc390_p1_str[] = { - "dc390_DataOutPhase", - "dc390_DataInPhase", - "dc390_CommandPhase", - "dc390_StatusPhase", - "dc390_Nop_0", - "dc390_Nop_0", - "dc390_MsgOutPhase", - "dc390_MsgInPhase", - "dc390_Nop_1" - }; -#endif - -static u8 dc390_eepromBuf[MAX_ADAPTER_NUM][EE_LEN]; -static u8 dc390_clock_period1[] = {4, 5, 6, 7, 8, 10, 13, 20}; -static u8 dc390_clock_speed[] = {100,80,67,57,50, 40, 31, 20}; - -/*********************************************************************** - * Functions for the management of the internal structures - * (DCBs, SRBs, Queueing) - * - **********************************************************************/ -static void inline dc390_start_segment(struct dc390_srb* pSRB) -{ - struct scatterlist *psgl = pSRB->pSegmentList; - - /* start new sg segment */ - pSRB->SGBusAddr = sg_dma_address(psgl); - pSRB->SGToBeXferLen = sg_dma_len(psgl); -} - -static unsigned long inline dc390_advance_segment(struct dc390_srb* pSRB, u32 residue) -{ - unsigned long xfer = pSRB->SGToBeXferLen - residue; - - /* xfer more bytes transferred */ - pSRB->SGBusAddr += xfer; - pSRB->TotalXferredLen += xfer; - pSRB->SGToBeXferLen = residue; - - return xfer; -} - -static struct dc390_dcb __inline__ *dc390_findDCB ( struct dc390_acb* pACB, u8 id, u8 lun) -{ - struct dc390_dcb* pDCB = pACB->pLinkDCB; if (!pDCB) return NULL; - while (pDCB->TargetID != id || pDCB->TargetLUN != lun) - { - pDCB = pDCB->pNextDCB; - if (pDCB == pACB->pLinkDCB) - return NULL; - } - DCBDEBUG1( printk (KERN_DEBUG "DCB %p (%02x,%02x) found.\n", \ - pDCB, pDCB->TargetID, pDCB->TargetLUN)); - return pDCB; -} - -/* Insert SRB oin top of free list */ -static __inline__ void dc390_Free_insert (struct dc390_acb* pACB, struct dc390_srb* pSRB) -{ - DEBUG0(printk ("DC390: Free SRB %p\n", pSRB)); - pSRB->pNextSRB = pACB->pFreeSRB; - pACB->pFreeSRB = pSRB; -} - -static __inline__ void dc390_Going_append (struct dc390_dcb* pDCB, struct dc390_srb* pSRB) -{ - pDCB->GoingSRBCnt++; - DEBUG0(printk("DC390: Append SRB %p to Going\n", pSRB)); - /* Append to the list of Going commands */ - if( pDCB->pGoingSRB ) - pDCB->pGoingLast->pNextSRB = pSRB; - else - pDCB->pGoingSRB = pSRB; - - pDCB->pGoingLast = pSRB; - /* No next one in sent list */ - pSRB->pNextSRB = NULL; -} - -static __inline__ void dc390_Going_remove (struct dc390_dcb* pDCB, struct dc390_srb* pSRB) -{ - DEBUG0(printk("DC390: Remove SRB %p from Going\n", pSRB)); - if (pSRB == pDCB->pGoingSRB) - pDCB->pGoingSRB = pSRB->pNextSRB; - else - { - struct dc390_srb* psrb = pDCB->pGoingSRB; - while (psrb && psrb->pNextSRB != pSRB) - psrb = psrb->pNextSRB; - if (!psrb) - { printk (KERN_ERR "DC390: Remove non-ex. SRB %p from Going!\n", pSRB); return; } - psrb->pNextSRB = pSRB->pNextSRB; - if (pSRB == pDCB->pGoingLast) - pDCB->pGoingLast = psrb; - } - pDCB->GoingSRBCnt--; -} - -static struct scatterlist* dc390_sg_build_single(struct scatterlist *sg, void *addr, unsigned int length) -{ - sg_init_one(sg, addr, length); - return sg; -} - -/* Create pci mapping */ -static int dc390_pci_map (struct dc390_srb* pSRB) -{ - int error = 0; - struct scsi_cmnd *pcmd = pSRB->pcmd; - struct pci_dev *pdev = pSRB->pSRBDCB->pDCBACB->pdev; - dc390_cmd_scp_t* cmdp = ((dc390_cmd_scp_t*)(&pcmd->SCp)); - - /* Map sense buffer */ - if (pSRB->SRBFlag & AUTO_REQSENSE) { - pSRB->pSegmentList = dc390_sg_build_single(&pSRB->Segmentx, pcmd->sense_buffer, SCSI_SENSE_BUFFERSIZE); - pSRB->SGcount = pci_map_sg(pdev, pSRB->pSegmentList, 1, - DMA_FROM_DEVICE); - cmdp->saved_dma_handle = sg_dma_address(pSRB->pSegmentList); - - /* TODO: error handling */ - if (pSRB->SGcount != 1) - error = 1; - DEBUG1(printk("%s(): Mapped sense buffer %p at %x\n", __func__, pcmd->sense_buffer, cmdp->saved_dma_handle)); - /* Map SG list */ - } else if (scsi_sg_count(pcmd)) { - int nseg; - - nseg = scsi_dma_map(pcmd); - - pSRB->pSegmentList = scsi_sglist(pcmd); - pSRB->SGcount = nseg; - - /* TODO: error handling */ - if (nseg < 0) - error = 1; - DEBUG1(printk("%s(): Mapped SG %p with %d (%d) elements\n",\ - __func__, scsi_sglist(pcmd), nseg, scsi_sg_count(pcmd))); - /* Map single segment */ - } else - pSRB->SGcount = 0; - - return error; -} - -/* Remove pci mapping */ -static void dc390_pci_unmap (struct dc390_srb* pSRB) -{ - struct scsi_cmnd *pcmd = pSRB->pcmd; - struct pci_dev *pdev = pSRB->pSRBDCB->pDCBACB->pdev; - DEBUG1(dc390_cmd_scp_t* cmdp = ((dc390_cmd_scp_t*)(&pcmd->SCp))); - - if (pSRB->SRBFlag) { - pci_unmap_sg(pdev, &pSRB->Segmentx, 1, DMA_FROM_DEVICE); - DEBUG1(printk("%s(): Unmapped sense buffer at %x\n", __func__, cmdp->saved_dma_handle)); - } else { - scsi_dma_unmap(pcmd); - DEBUG1(printk("%s(): Unmapped SG at %p with %d elements\n", - __func__, scsi_sglist(pcmd), scsi_sg_count(pcmd))); - } -} - -static void __inline__ -dc390_freetag (struct dc390_dcb* pDCB, struct dc390_srb* pSRB) -{ - if (pSRB->TagNumber != SCSI_NO_TAG) { - pDCB->TagMask &= ~(1 << pSRB->TagNumber); /* free tag mask */ - pSRB->TagNumber = SCSI_NO_TAG; - } -} - - -static int -dc390_StartSCSI( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB ) -{ - struct scsi_cmnd *scmd = pSRB->pcmd; - struct scsi_device *sdev = scmd->device; - u8 cmd, disc_allowed, try_sync_nego; - - pSRB->ScsiPhase = SCSI_NOP0; - - if (pACB->Connected) - { - // Should not happen normally - printk (KERN_WARNING "DC390: Can't select when connected! (%08x,%02x)\n", - pSRB->SRBState, pSRB->SRBFlag); - pSRB->SRBState = SRB_READY; - pACB->SelConn++; - return 1; - } - if (time_before (jiffies, pACB->last_reset)) - { - DEBUG0(printk ("DC390: We were just reset and don't accept commands yet!\n")); - return 1; - } - /* KG: Moved pci mapping here */ - dc390_pci_map(pSRB); - /* TODO: error handling */ - DC390_write8 (Scsi_Dest_ID, pDCB->TargetID); - DC390_write8 (Sync_Period, pDCB->SyncPeriod); - DC390_write8 (Sync_Offset, pDCB->SyncOffset); - DC390_write8 (CtrlReg1, pDCB->CtrlR1); - DC390_write8 (CtrlReg3, pDCB->CtrlR3); - DC390_write8 (CtrlReg4, pDCB->CtrlR4); - DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); /* Flush FIFO */ - DEBUG1(printk (KERN_INFO "DC390: Start SCSI command: %02x (Sync:%02x)\n",\ - scmd->cmnd[0], pDCB->SyncMode)); - - /* Don't disconnect on AUTO_REQSENSE, cause it might be an - * Contingent Allegiance Condition (6.6), where no tags should be used. - * All other have to be allowed to disconnect to prevent Incorrect - * Initiator Connection (6.8.2/6.5.2) */ - /* Changed KG, 99/06/06 */ - if (! (pSRB->SRBFlag & AUTO_REQSENSE)) - disc_allowed = pDCB->DevMode & EN_DISCONNECT_; - else - disc_allowed = 0; - - if ((pDCB->SyncMode & SYNC_ENABLE) && pDCB->TargetLUN == 0 && sdev->sdtr && - (((scmd->cmnd[0] == REQUEST_SENSE || (pSRB->SRBFlag & AUTO_REQSENSE)) && - !(pDCB->SyncMode & SYNC_NEGO_DONE)) || scmd->cmnd[0] == INQUIRY)) - try_sync_nego = 1; - else - try_sync_nego = 0; - - pSRB->MsgCnt = 0; - cmd = SEL_W_ATN; - DC390_write8 (ScsiFifo, IDENTIFY(disc_allowed, pDCB->TargetLUN)); - /* Change 99/05/31: Don't use tags when not disconnecting (BUSY) */ - if ((pDCB->SyncMode & EN_TAG_QUEUEING) && disc_allowed && (scmd->flags & SCMD_TAGGED)) { - DC390_write8(ScsiFifo, MSG_SIMPLE_TAG); - pDCB->TagMask |= 1 << scmd->request->tag; - pSRB->TagNumber = scmd->request->tag; - DC390_write8(ScsiFifo, scmd->request->tag); - DEBUG1(printk(KERN_INFO "DC390: Select w/DisCn for SRB %p, block tag %02x\n", pSRB, tag[1])); - cmd = SEL_W_ATN3; - } else { - /* No TagQ */ -//no_tag: - DEBUG1(printk(KERN_INFO "DC390: Select w%s/DisCn for SRB %p, No TagQ\n", disc_allowed ? "" : "o", pSRB)); - } - - pSRB->SRBState = SRB_START_; - - if (try_sync_nego) - { - u8 Sync_Off = pDCB->SyncOffset; - DEBUG0(printk (KERN_INFO "DC390: NEW Sync Nego code triggered (%i %i)\n", pDCB->TargetID, pDCB->TargetLUN)); - pSRB->MsgOutBuf[0] = EXTENDED_MESSAGE; - pSRB->MsgOutBuf[1] = 3; - pSRB->MsgOutBuf[2] = EXTENDED_SDTR; - pSRB->MsgOutBuf[3] = pDCB->NegoPeriod; - if (!(Sync_Off & 0x0f)) Sync_Off = SYNC_NEGO_OFFSET; - pSRB->MsgOutBuf[4] = Sync_Off; - pSRB->MsgCnt = 5; - //pSRB->SRBState = SRB_MSGOUT_; - pSRB->SRBState |= DO_SYNC_NEGO; - cmd = SEL_W_ATN_STOP; - } - - /* Command is written in CommandPhase, if SEL_W_ATN_STOP ... */ - if (cmd != SEL_W_ATN_STOP) - { - if( pSRB->SRBFlag & AUTO_REQSENSE ) - { - DC390_write8 (ScsiFifo, REQUEST_SENSE); - DC390_write8 (ScsiFifo, pDCB->TargetLUN << 5); - DC390_write8 (ScsiFifo, 0); - DC390_write8 (ScsiFifo, 0); - DC390_write8 (ScsiFifo, SCSI_SENSE_BUFFERSIZE); - DC390_write8 (ScsiFifo, 0); - DEBUG1(printk (KERN_DEBUG "DC390: AutoReqSense !\n")); - } - else /* write cmnd to bus */ - { - u8 *ptr; u8 i; - ptr = (u8 *)scmd->cmnd; - for (i = 0; i < scmd->cmd_len; i++) - DC390_write8 (ScsiFifo, *(ptr++)); - } - } - DEBUG0(if (pACB->pActiveDCB) \ - printk (KERN_WARNING "DC390: ActiveDCB != 0\n")); - DEBUG0(if (pDCB->pActiveSRB) \ - printk (KERN_WARNING "DC390: ActiveSRB != 0\n")); - //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); - if (DC390_read8 (Scsi_Status) & INTERRUPT) - { - dc390_freetag (pDCB, pSRB); - DEBUG0(printk ("DC390: Interrupt during Start SCSI (target %02i-%02i)\n", - scmd->device->id, (u8)scmd->device->lun)); - pSRB->SRBState = SRB_READY; - //DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); - pACB->SelLost++; - return 1; - } - DC390_write8 (ScsiCmd, cmd); - pACB->pActiveDCB = pDCB; - pDCB->pActiveSRB = pSRB; - pACB->Connected = 1; - pSRB->ScsiPhase = SCSI_NOP1; - return 0; -} - - -static void __inline__ -dc390_InvalidCmd(struct dc390_acb* pACB) -{ - if (pACB->pActiveDCB->pActiveSRB->SRBState & (SRB_START_ | SRB_MSGOUT)) - DC390_write8(ScsiCmd, CLEAR_FIFO_CMD); -} - - -static irqreturn_t __inline__ -DC390_Interrupt(void *dev_id) -{ - struct dc390_acb *pACB = dev_id; - struct dc390_dcb *pDCB; - struct dc390_srb *pSRB; - u8 sstatus=0; - u8 phase; - void (*stateV)( struct dc390_acb*, struct dc390_srb*, u8 *); - u8 istate, istatus; - - sstatus = DC390_read8 (Scsi_Status); - if( !(sstatus & INTERRUPT) ) - return IRQ_NONE; - - DEBUG1(printk (KERN_DEBUG "sstatus=%02x,", sstatus)); - - //DC390_write32 (DMA_ScsiBusCtrl, WRT_ERASE_DMA_STAT | EN_INT_ON_PCI_ABORT); - //dstatus = DC390_read8 (DMA_Status); - //DC390_write32 (DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT); - - spin_lock_irq(pACB->pScsiHost->host_lock); - - istate = DC390_read8 (Intern_State); - istatus = DC390_read8 (INT_Status); /* This clears Scsi_Status, Intern_State and INT_Status ! */ - - DEBUG1(printk (KERN_INFO "Istatus(Res,Inv,Dis,Serv,Succ,ReS,SelA,Sel)=%02x,",istatus)); - dc390_laststatus &= ~0x00ffffff; - dc390_laststatus |= /* dstatus<<24 | */ sstatus<<16 | istate<<8 | istatus; - - if (sstatus & ILLEGAL_OP_ERR) - { - printk ("DC390: Illegal Operation detected (%08x)!\n", dc390_laststatus); - dc390_dumpinfo (pACB, pACB->pActiveDCB, pACB->pActiveDCB->pActiveSRB); - } - - else if (istatus & INVALID_CMD) - { - printk ("DC390: Invalid Command detected (%08x)!\n", dc390_laststatus); - dc390_InvalidCmd( pACB ); - goto unlock; - } - - if (istatus & SCSI_RESET) - { - dc390_ScsiRstDetect( pACB ); - goto unlock; - } - - if (istatus & DISCONNECTED) - { - dc390_Disconnect( pACB ); - goto unlock; - } - - if (istatus & RESELECTED) - { - dc390_Reselect( pACB ); - goto unlock; - } - - else if (istatus & (SELECTED | SEL_ATTENTION)) - { - printk (KERN_ERR "DC390: Target mode not supported!\n"); - goto unlock; - } - - if (istatus & (SUCCESSFUL_OP|SERVICE_REQUEST) ) - { - pDCB = pACB->pActiveDCB; - if (!pDCB) - { - printk (KERN_ERR "DC390: Suc. op/ Serv. req: pActiveDCB = 0!\n"); - goto unlock; - } - pSRB = pDCB->pActiveSRB; - if( pDCB->DCBFlag & ABORT_DEV_ ) - dc390_EnableMsgOut_Abort (pACB, pSRB); - - phase = pSRB->ScsiPhase; - DEBUG1(printk (KERN_INFO "DC390: [%i]%s(0) (%02x)\n", phase, dc390_p0_str[phase], sstatus)); - stateV = (void *) dc390_phase0[phase]; - ( *stateV )( pACB, pSRB, &sstatus ); - - pSRB->ScsiPhase = sstatus & 7; - phase = (u8) sstatus & 7; - DEBUG1(printk (KERN_INFO "DC390: [%i]%s(1) (%02x)\n", phase, dc390_p1_str[phase], sstatus)); - stateV = (void *) dc390_phase1[phase]; - ( *stateV )( pACB, pSRB, &sstatus ); - } - - unlock: - spin_unlock_irq(pACB->pScsiHost->host_lock); - return IRQ_HANDLED; -} - -static irqreturn_t do_DC390_Interrupt(int irq, void *dev_id) -{ - irqreturn_t ret; - DEBUG1(printk (KERN_INFO "DC390: Irq (%i) caught: ", irq)); - /* Locking is done in DC390_Interrupt */ - ret = DC390_Interrupt(dev_id); - DEBUG1(printk (".. IRQ returned\n")); - return ret; -} - -static void -dc390_DataOut_0(struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ - u8 sstatus; - u32 ResidCnt; - u8 dstate = 0; - - sstatus = *psstatus; - - if( !(pSRB->SRBState & SRB_XFERPAD) ) - { - if( sstatus & (PARITY_ERR | ILLEGAL_OP_ERR) ) - pSRB->SRBStatus |= PARITY_ERROR; - - if( sstatus & COUNT_2_ZERO ) - { - unsigned long timeout = jiffies + HZ; - - /* Function called from the ISR with the host_lock held and interrupts disabled */ - if (pSRB->SGToBeXferLen) - while (time_before(jiffies, timeout) && !((dstate = DC390_read8 (DMA_Status)) & DMA_XFER_DONE)) { - spin_unlock_irq(pACB->pScsiHost->host_lock); - udelay(50); - spin_lock_irq(pACB->pScsiHost->host_lock); - } - if (!time_before(jiffies, timeout)) - printk (KERN_CRIT "DC390: Deadlock in DataOut_0: DMA aborted unfinished: %06x bytes remain!!\n", - DC390_read32 (DMA_Wk_ByteCntr)); - dc390_laststatus &= ~0xff000000; - dc390_laststatus |= dstate << 24; - pSRB->TotalXferredLen += pSRB->SGToBeXferLen; - pSRB->SGIndex++; - if( pSRB->SGIndex < pSRB->SGcount ) - { - pSRB->pSegmentList++; - - dc390_start_segment(pSRB); - } - else - pSRB->SGToBeXferLen = 0; - } - else - { - ResidCnt = ((u32) DC390_read8 (Current_Fifo) & 0x1f) + - (((u32) DC390_read8 (CtcReg_High) << 16) | - ((u32) DC390_read8 (CtcReg_Mid) << 8) | - (u32) DC390_read8 (CtcReg_Low)); - - dc390_advance_segment(pSRB, ResidCnt); - } - } - if ((*psstatus & 7) != SCSI_DATA_OUT) - { - DC390_write8 (DMA_Cmd, WRITE_DIRECTION+DMA_IDLE_CMD); - DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); - } -} - -static void -dc390_DataIn_0(struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ - u8 sstatus, residual, bval; - u32 ResidCnt, i; - unsigned long xferCnt; - - sstatus = *psstatus; - - if( !(pSRB->SRBState & SRB_XFERPAD) ) - { - if( sstatus & (PARITY_ERR | ILLEGAL_OP_ERR)) - pSRB->SRBStatus |= PARITY_ERROR; - - if( sstatus & COUNT_2_ZERO ) - { - int dstate = 0; - unsigned long timeout = jiffies + HZ; - - /* Function called from the ISR with the host_lock held and interrupts disabled */ - if (pSRB->SGToBeXferLen) - while (time_before(jiffies, timeout) && !((dstate = DC390_read8 (DMA_Status)) & DMA_XFER_DONE)) { - spin_unlock_irq(pACB->pScsiHost->host_lock); - udelay(50); - spin_lock_irq(pACB->pScsiHost->host_lock); - } - if (!time_before(jiffies, timeout)) { - printk (KERN_CRIT "DC390: Deadlock in DataIn_0: DMA aborted unfinished: %06x bytes remain!!\n", - DC390_read32 (DMA_Wk_ByteCntr)); - printk (KERN_CRIT "DC390: DataIn_0: DMA State: %i\n", dstate); - } - dc390_laststatus &= ~0xff000000; - dc390_laststatus |= dstate << 24; - DEBUG1(ResidCnt = ((unsigned long) DC390_read8 (CtcReg_High) << 16) \ - + ((unsigned long) DC390_read8 (CtcReg_Mid) << 8) \ - + ((unsigned long) DC390_read8 (CtcReg_Low))); - DEBUG1(printk (KERN_DEBUG "Count_2_Zero (ResidCnt=%u,ToBeXfer=%lu),", ResidCnt, pSRB->SGToBeXferLen)); - - DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_IDLE_CMD); - - pSRB->TotalXferredLen += pSRB->SGToBeXferLen; - pSRB->SGIndex++; - if( pSRB->SGIndex < pSRB->SGcount ) - { - pSRB->pSegmentList++; - - dc390_start_segment(pSRB); - } - else - pSRB->SGToBeXferLen = 0; - } - else /* phase changed */ - { - residual = 0; - bval = DC390_read8 (Current_Fifo); - while( bval & 0x1f ) - { - DEBUG1(printk (KERN_DEBUG "Check for residuals,")); - if( (bval & 0x1f) == 1 ) - { - for(i=0; i < 0x100; i++) - { - bval = DC390_read8 (Current_Fifo); - if( !(bval & 0x1f) ) - goto din_1; - else if( i == 0x0ff ) - { - residual = 1; /* ;1 residual byte */ - goto din_1; - } - } - } - else - bval = DC390_read8 (Current_Fifo); - } -din_1: - DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_BLAST_CMD); - for (i = 0xa000; i; i--) - { - bval = DC390_read8 (DMA_Status); - if (bval & BLAST_COMPLETE) - break; - } - /* It seems a DMA Blast abort isn't that bad ... */ - if (!i) printk (KERN_ERR "DC390: DMA Blast aborted unfinished!\n"); - //DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_IDLE_CMD); - dc390_laststatus &= ~0xff000000; - dc390_laststatus |= bval << 24; - - DEBUG1(printk (KERN_DEBUG "Blast: Read %i times DMA_Status %02x", 0xa000-i, bval)); - ResidCnt = (((u32) DC390_read8 (CtcReg_High) << 16) | - ((u32) DC390_read8 (CtcReg_Mid) << 8)) | - (u32) DC390_read8 (CtcReg_Low); - - xferCnt = dc390_advance_segment(pSRB, ResidCnt); - - if (residual) { - size_t count = 1; - size_t offset = pSRB->SGBusAddr - sg_dma_address(pSRB->pSegmentList); - unsigned long flags; - u8 *ptr; - - bval = DC390_read8 (ScsiFifo); /* get one residual byte */ - - local_irq_save(flags); - ptr = scsi_kmap_atomic_sg(pSRB->pSegmentList, pSRB->SGcount, &offset, &count); - if (likely(ptr)) { - *(ptr + offset) = bval; - scsi_kunmap_atomic_sg(ptr); - } - local_irq_restore(flags); - WARN_ON(!ptr); - - /* 1 more byte read */ - xferCnt += dc390_advance_segment(pSRB, pSRB->SGToBeXferLen - 1); - } - DEBUG1(printk (KERN_DEBUG "Xfered: %lu, Total: %lu, Remaining: %lu\n", xferCnt,\ - pSRB->TotalXferredLen, pSRB->SGToBeXferLen)); - } - } - if ((*psstatus & 7) != SCSI_DATA_IN) - { - DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); - DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_IDLE_CMD); - } -} - -static void -dc390_Command_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ -} - -static void -dc390_Status_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ - - pSRB->TargetStatus = DC390_read8 (ScsiFifo); - //udelay (1); - pSRB->EndMessage = DC390_read8 (ScsiFifo); /* get message */ - - *psstatus = SCSI_NOP0; - pSRB->SRBState = SRB_COMPLETED; - DC390_write8 (ScsiCmd, MSG_ACCEPTED_CMD); -} - -static void -dc390_MsgOut_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ - if( pSRB->SRBState & (SRB_UNEXPECT_RESEL+SRB_ABORT_SENT) ) - *psstatus = SCSI_NOP0; - //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); -} - - -static void __inline__ -dc390_reprog (struct dc390_acb* pACB, struct dc390_dcb* pDCB) -{ - DC390_write8 (Sync_Period, pDCB->SyncPeriod); - DC390_write8 (Sync_Offset, pDCB->SyncOffset); - DC390_write8 (CtrlReg3, pDCB->CtrlR3); - DC390_write8 (CtrlReg4, pDCB->CtrlR4); - dc390_SetXferRate (pACB, pDCB); -} - - -#ifdef DC390_DEBUG0 -static void -dc390_printMsg (u8 *MsgBuf, u8 len) -{ - int i; - printk (" %02x", MsgBuf[0]); - for (i = 1; i < len; i++) - printk (" %02x", MsgBuf[i]); - printk ("\n"); -} -#endif - -#define DC390_ENABLE_MSGOUT DC390_write8 (ScsiCmd, SET_ATN_CMD) - -/* reject_msg */ -static void __inline__ -dc390_MsgIn_reject (struct dc390_acb* pACB, struct dc390_srb* pSRB) -{ - pSRB->MsgOutBuf[0] = MESSAGE_REJECT; - pSRB->MsgCnt = 1; - DC390_ENABLE_MSGOUT; - DEBUG0 (printk (KERN_INFO "DC390: Reject message\n")); -} - -/* abort command */ -static void -dc390_EnableMsgOut_Abort ( struct dc390_acb* pACB, struct dc390_srb* pSRB ) -{ - pSRB->MsgOutBuf[0] = ABORT; - pSRB->MsgCnt = 1; DC390_ENABLE_MSGOUT; - pSRB->pSRBDCB->DCBFlag &= ~ABORT_DEV_; -} - -static struct dc390_srb* -dc390_MsgIn_QTag (struct dc390_acb* pACB, struct dc390_dcb* pDCB, s8 tag) -{ - struct dc390_srb* pSRB = pDCB->pGoingSRB; - - if (pSRB) - { - struct scsi_cmnd *scmd = scsi_find_tag(pSRB->pcmd->device, tag); - pSRB = (struct dc390_srb *)scmd->host_scribble; - - if (pDCB->DCBFlag & ABORT_DEV_) - { - pSRB->SRBState = SRB_ABORT_SENT; - dc390_EnableMsgOut_Abort( pACB, pSRB ); - } - - if (!(pSRB->SRBState & SRB_DISCONNECT)) - goto mingx0; - - pDCB->pActiveSRB = pSRB; - pSRB->SRBState = SRB_DATA_XFER; - } - else - { - mingx0: - pSRB = pACB->pTmpSRB; - pSRB->SRBState = SRB_UNEXPECT_RESEL; - pDCB->pActiveSRB = pSRB; - pSRB->MsgOutBuf[0] = ABORT_TAG; - pSRB->MsgCnt = 1; DC390_ENABLE_MSGOUT; - } - return pSRB; -} - - -/* set async transfer mode */ -static void -dc390_MsgIn_set_async (struct dc390_acb* pACB, struct dc390_srb* pSRB) -{ - struct dc390_dcb* pDCB = pSRB->pSRBDCB; - if (!(pSRB->SRBState & DO_SYNC_NEGO)) - printk (KERN_INFO "DC390: Target %i initiates Non-Sync?\n", pDCB->TargetID); - pSRB->SRBState &= ~DO_SYNC_NEGO; - pDCB->SyncMode &= ~(SYNC_ENABLE+SYNC_NEGO_DONE); - pDCB->SyncPeriod = 0; - pDCB->SyncOffset = 0; - //pDCB->NegoPeriod = 50; /* 200ns <=> 5 MHz */ - pDCB->CtrlR3 = FAST_CLK; /* fast clock / normal scsi */ - pDCB->CtrlR4 &= 0x3f; - pDCB->CtrlR4 |= pACB->glitch_cfg; /* glitch eater */ - dc390_reprog (pACB, pDCB); -} - -/* set sync transfer mode */ -static void -dc390_MsgIn_set_sync (struct dc390_acb* pACB, struct dc390_srb* pSRB) -{ - u8 bval; - u16 wval, wval1; - struct dc390_dcb* pDCB = pSRB->pSRBDCB; - u8 oldsyncperiod = pDCB->SyncPeriod; - u8 oldsyncoffset = pDCB->SyncOffset; - - if (!(pSRB->SRBState & DO_SYNC_NEGO)) - { - printk (KERN_INFO "DC390: Target %i initiates Sync: %ins %i ... answer ...\n", - pDCB->TargetID, pSRB->MsgInBuf[3]<<2, pSRB->MsgInBuf[4]); - - /* reject */ - //dc390_MsgIn_reject (pACB, pSRB); - //return dc390_MsgIn_set_async (pACB, pSRB); - - /* Reply with corrected SDTR Message */ - if (pSRB->MsgInBuf[4] > 15) - { - printk (KERN_INFO "DC390: Lower Sync Offset to 15\n"); - pSRB->MsgInBuf[4] = 15; - } - if (pSRB->MsgInBuf[3] < pDCB->NegoPeriod) - { - printk (KERN_INFO "DC390: Set sync nego period to %ins\n", pDCB->NegoPeriod << 2); - pSRB->MsgInBuf[3] = pDCB->NegoPeriod; - } - memcpy (pSRB->MsgOutBuf, pSRB->MsgInBuf, 5); - pSRB->MsgCnt = 5; - DC390_ENABLE_MSGOUT; - } - - pSRB->SRBState &= ~DO_SYNC_NEGO; - pDCB->SyncMode |= SYNC_ENABLE+SYNC_NEGO_DONE; - pDCB->SyncOffset &= 0x0f0; - pDCB->SyncOffset |= pSRB->MsgInBuf[4]; - pDCB->NegoPeriod = pSRB->MsgInBuf[3]; - - wval = (u16) pSRB->MsgInBuf[3]; - wval = wval << 2; wval -= 3; wval1 = wval / 25; /* compute speed */ - if( (wval1 * 25) != wval) wval1++; - bval = FAST_CLK+FAST_SCSI; /* fast clock / fast scsi */ - - pDCB->CtrlR4 &= 0x3f; /* Glitch eater: 12ns less than normal */ - if (pACB->glitch_cfg != NS_TO_GLITCH(0)) - pDCB->CtrlR4 |= NS_TO_GLITCH(((GLITCH_TO_NS(pACB->glitch_cfg)) - 1)); - else - pDCB->CtrlR4 |= NS_TO_GLITCH(0); - if (wval1 < 4) pDCB->CtrlR4 |= NS_TO_GLITCH(0); /* Ultra */ - - if (wval1 >= 8) - { - wval1--; /* Timing computation differs by 1 from FAST_SCSI */ - bval = FAST_CLK; /* fast clock / normal scsi */ - pDCB->CtrlR4 |= pACB->glitch_cfg; /* glitch eater */ - } - - pDCB->CtrlR3 = bval; - pDCB->SyncPeriod = (u8)wval1; - - if ((oldsyncperiod != wval1 || oldsyncoffset != pDCB->SyncOffset) && pDCB->TargetLUN == 0) - { - if (! (bval & FAST_SCSI)) wval1++; - printk (KERN_INFO "DC390: Target %i: Sync transfer %i.%1i MHz, Offset %i\n", pDCB->TargetID, - 40/wval1, ((40%wval1)*10+wval1/2)/wval1, pDCB->SyncOffset & 0x0f); - } - - dc390_reprog (pACB, pDCB); -} - - -/* handle RESTORE_PTR */ -/* This doesn't look very healthy... to-be-fixed */ -static void -dc390_restore_ptr (struct dc390_acb* pACB, struct dc390_srb* pSRB) -{ - struct scsi_cmnd *pcmd = pSRB->pcmd; - struct scatterlist *psgl; - pSRB->TotalXferredLen = 0; - pSRB->SGIndex = 0; - if (scsi_sg_count(pcmd)) { - size_t saved; - pSRB->pSegmentList = scsi_sglist(pcmd); - psgl = pSRB->pSegmentList; - //dc390_pci_sync(pSRB); - - while (pSRB->TotalXferredLen + (unsigned long) sg_dma_len(psgl) < pSRB->Saved_Ptr) - { - pSRB->TotalXferredLen += (unsigned long) sg_dma_len(psgl); - pSRB->SGIndex++; - if( pSRB->SGIndex < pSRB->SGcount ) - { - pSRB->pSegmentList++; - - dc390_start_segment(pSRB); - } - else - pSRB->SGToBeXferLen = 0; - } - - saved = pSRB->Saved_Ptr - pSRB->TotalXferredLen; - pSRB->SGToBeXferLen -= saved; - pSRB->SGBusAddr += saved; - printk (KERN_INFO "DC390: Pointer restored. Segment %i, Total %li, Bus %08lx\n", - pSRB->SGIndex, pSRB->Saved_Ptr, pSRB->SGBusAddr); - - } else { - pSRB->SGcount = 0; - printk (KERN_INFO "DC390: RESTORE_PTR message for Transfer without Scatter-Gather ??\n"); - } - - pSRB->TotalXferredLen = pSRB->Saved_Ptr; -} - - -/* According to the docs, the AM53C974 reads the message and - * generates a Successful Operation IRQ before asserting ACK for - * the last byte (how does it know whether it's the last ?) */ -/* The old code handled it in another way, indicating, that on - * every message byte an IRQ is generated and every byte has to - * be manually ACKed. Hmmm ? (KG, 98/11/28) */ -/* The old implementation was correct. Sigh! */ - -/* Check if the message is complete */ -static u8 __inline__ -dc390_MsgIn_complete (u8 *msgbuf, u32 len) -{ - if (*msgbuf == EXTENDED_MESSAGE) - { - if (len < 2) return 0; - if (len < msgbuf[1] + 2) return 0; - } - else if (*msgbuf >= 0x20 && *msgbuf <= 0x2f) // two byte messages - if (len < 2) return 0; - return 1; -} - - - -/* read and eval received messages */ -static void -dc390_MsgIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ - struct dc390_dcb* pDCB = pACB->pActiveDCB; - - /* Read the msg */ - - pSRB->MsgInBuf[pACB->MsgLen++] = DC390_read8 (ScsiFifo); - //pSRB->SRBState = 0; - - /* Msg complete ? */ - if (dc390_MsgIn_complete (pSRB->MsgInBuf, pACB->MsgLen)) - { - DEBUG0 (printk (KERN_INFO "DC390: MsgIn:"); dc390_printMsg (pSRB->MsgInBuf, pACB->MsgLen)); - /* Now eval the msg */ - switch (pSRB->MsgInBuf[0]) - { - case DISCONNECT: - pSRB->SRBState = SRB_DISCONNECT; break; - - case SIMPLE_QUEUE_TAG: - case HEAD_OF_QUEUE_TAG: - case ORDERED_QUEUE_TAG: - pSRB = dc390_MsgIn_QTag (pACB, pDCB, pSRB->MsgInBuf[1]); - break; - - case MESSAGE_REJECT: - DC390_write8 (ScsiCmd, RESET_ATN_CMD); - pDCB->NegoPeriod = 50; /* 200ns <=> 5 MHz */ - if( pSRB->SRBState & DO_SYNC_NEGO) - dc390_MsgIn_set_async (pACB, pSRB); - break; - - case EXTENDED_MESSAGE: - /* reject every extended msg but SDTR */ - if (pSRB->MsgInBuf[1] != 3 || pSRB->MsgInBuf[2] != EXTENDED_SDTR) - dc390_MsgIn_reject (pACB, pSRB); - else - { - if (pSRB->MsgInBuf[3] == 0 || pSRB->MsgInBuf[4] == 0) - dc390_MsgIn_set_async (pACB, pSRB); - else - dc390_MsgIn_set_sync (pACB, pSRB); - } - - // nothing has to be done - case COMMAND_COMPLETE: break; - - // SAVE POINTER may be ignored as we have the struct dc390_srb* associated with the - // scsi command. Thanks, Gerard, for pointing it out. - case SAVE_POINTERS: - pSRB->Saved_Ptr = pSRB->TotalXferredLen; - break; - // The device might want to restart transfer with a RESTORE - case RESTORE_POINTERS: - DEBUG0(printk ("DC390: RESTORE POINTER message received ... try to handle\n")); - dc390_restore_ptr (pACB, pSRB); - break; - - // reject unknown messages - default: dc390_MsgIn_reject (pACB, pSRB); - } - - /* Clear counter and MsgIn state */ - pSRB->SRBState &= ~SRB_MSGIN; - pACB->MsgLen = 0; - } - - *psstatus = SCSI_NOP0; - DC390_write8 (ScsiCmd, MSG_ACCEPTED_CMD); - //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); -} - - -static void -dc390_DataIO_Comm( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 ioDir) -{ - unsigned long lval; - struct dc390_dcb* pDCB = pACB->pActiveDCB; - - if (pSRB == pACB->pTmpSRB) - { - if (pDCB) - printk(KERN_ERR "DC390: pSRB == pTmpSRB! (TagQ Error?) (%02i-%i)\n", pDCB->TargetID, pDCB->TargetLUN); - else - printk(KERN_ERR "DC390: pSRB == pTmpSRB! (TagQ Error?) (DCB 0!)\n"); - - /* Try to recover - some broken disks react badly to tagged INQUIRY */ - if (pDCB && pACB->scan_devices && pDCB->GoingSRBCnt == 1) { - pSRB = pDCB->pGoingSRB; - pDCB->pActiveSRB = pSRB; - } else { - pSRB->pSRBDCB = pDCB; - dc390_EnableMsgOut_Abort(pACB, pSRB); - if (pDCB) - pDCB->DCBFlag |= ABORT_DEV; - return; - } - } - - if( pSRB->SGIndex < pSRB->SGcount ) - { - DC390_write8 (DMA_Cmd, DMA_IDLE_CMD | ioDir); - if( !pSRB->SGToBeXferLen ) - { - dc390_start_segment(pSRB); - - DEBUG1(printk (KERN_DEBUG " DC390: Next SG segment.")); - } - lval = pSRB->SGToBeXferLen; - DEBUG1(printk (KERN_DEBUG " DC390: Start transfer: %li bytes (address %08lx)\n", lval, pSRB->SGBusAddr)); - DC390_write8 (CtcReg_Low, (u8) lval); - lval >>= 8; - DC390_write8 (CtcReg_Mid, (u8) lval); - lval >>= 8; - DC390_write8 (CtcReg_High, (u8) lval); - - DC390_write32 (DMA_XferCnt, pSRB->SGToBeXferLen); - DC390_write32 (DMA_XferAddr, pSRB->SGBusAddr); - - //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD | ioDir); - pSRB->SRBState = SRB_DATA_XFER; - - DC390_write8 (ScsiCmd, DMA_COMMAND+INFO_XFER_CMD); - - DC390_write8 (DMA_Cmd, DMA_START_CMD | ioDir); - //DEBUG1(DC390_write32 (DMA_ScsiBusCtrl, WRT_ERASE_DMA_STAT | EN_INT_ON_PCI_ABORT)); - //DEBUG1(printk (KERN_DEBUG "DC390: DMA_Status: %02x\n", DC390_read8 (DMA_Status))); - //DEBUG1(DC390_write32 (DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT)); - } - else /* xfer pad */ - { - if( pSRB->SGcount ) - { - pSRB->AdaptStatus = H_OVER_UNDER_RUN; - pSRB->SRBStatus |= OVER_RUN; - DEBUG0(printk (KERN_WARNING " DC390: Overrun -")); - } - DEBUG0(printk (KERN_WARNING " Clear transfer pad \n")); - DC390_write8 (CtcReg_Low, 0); - DC390_write8 (CtcReg_Mid, 0); - DC390_write8 (CtcReg_High, 0); - - pSRB->SRBState |= SRB_XFERPAD; - DC390_write8 (ScsiCmd, DMA_COMMAND+XFER_PAD_BYTE); -/* - DC390_write8 (DMA_Cmd, DMA_IDLE_CMD | ioDir); - DC390_write8 (DMA_Cmd, DMA_START_CMD | ioDir); -*/ - } -} - - -static void -dc390_DataOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ - dc390_DataIO_Comm (pACB, pSRB, WRITE_DIRECTION); -} - -static void -dc390_DataInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ - dc390_DataIO_Comm (pACB, pSRB, READ_DIRECTION); -} - -static void -dc390_CommandPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ - struct dc390_dcb* pDCB; - u8 i, cnt; - u8 *ptr; - - DC390_write8 (ScsiCmd, RESET_ATN_CMD); - DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); - if( !(pSRB->SRBFlag & AUTO_REQSENSE) ) - { - cnt = (u8) pSRB->pcmd->cmd_len; - ptr = (u8 *) pSRB->pcmd->cmnd; - for(i=0; i < cnt; i++) - DC390_write8 (ScsiFifo, *(ptr++)); - } - else - { - DC390_write8 (ScsiFifo, REQUEST_SENSE); - pDCB = pACB->pActiveDCB; - DC390_write8 (ScsiFifo, pDCB->TargetLUN << 5); - DC390_write8 (ScsiFifo, 0); - DC390_write8 (ScsiFifo, 0); - DC390_write8 (ScsiFifo, SCSI_SENSE_BUFFERSIZE); - DC390_write8 (ScsiFifo, 0); - DEBUG0(printk(KERN_DEBUG "DC390: AutoReqSense (CmndPhase)!\n")); - } - pSRB->SRBState = SRB_COMMAND; - DC390_write8 (ScsiCmd, INFO_XFER_CMD); -} - -static void -dc390_StatusPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ - DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); - pSRB->SRBState = SRB_STATUS; - DC390_write8 (ScsiCmd, INITIATOR_CMD_CMPLTE); - //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); -} - -static void -dc390_MsgOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ - u8 bval, i, cnt; - u8 *ptr; - struct dc390_dcb* pDCB; - - DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); - pDCB = pACB->pActiveDCB; - if( !(pSRB->SRBState & SRB_MSGOUT) ) - { - cnt = pSRB->MsgCnt; - if( cnt ) - { - ptr = (u8 *) pSRB->MsgOutBuf; - for(i=0; i < cnt; i++) - DC390_write8 (ScsiFifo, *(ptr++)); - pSRB->MsgCnt = 0; - if( (pDCB->DCBFlag & ABORT_DEV_) && - (pSRB->MsgOutBuf[0] == ABORT) ) - pSRB->SRBState = SRB_ABORT_SENT; - } - else - { - bval = ABORT; /* ??? MSG_NOP */ - if( (pSRB->pcmd->cmnd[0] == INQUIRY ) || - (pSRB->pcmd->cmnd[0] == REQUEST_SENSE) || - (pSRB->SRBFlag & AUTO_REQSENSE) ) - { - if( pDCB->SyncMode & SYNC_ENABLE ) - goto mop1; - } - DC390_write8 (ScsiFifo, bval); - } - DC390_write8 (ScsiCmd, INFO_XFER_CMD); - } - else - { -mop1: - printk (KERN_ERR "DC390: OLD Sync Nego code triggered! (%i %i)\n", pDCB->TargetID, pDCB->TargetLUN); - DC390_write8 (ScsiFifo, EXTENDED_MESSAGE); - DC390_write8 (ScsiFifo, 3); /* ;length of extended msg */ - DC390_write8 (ScsiFifo, EXTENDED_SDTR); /* ; sync nego */ - DC390_write8 (ScsiFifo, pDCB->NegoPeriod); - if (pDCB->SyncOffset & 0x0f) - DC390_write8 (ScsiFifo, pDCB->SyncOffset); - else - DC390_write8 (ScsiFifo, SYNC_NEGO_OFFSET); - pSRB->SRBState |= DO_SYNC_NEGO; - DC390_write8 (ScsiCmd, INFO_XFER_CMD); - } -} - -static void -dc390_MsgInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ - DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); - if( !(pSRB->SRBState & SRB_MSGIN) ) - { - pSRB->SRBState &= ~SRB_DISCONNECT; - pSRB->SRBState |= SRB_MSGIN; - } - DC390_write8 (ScsiCmd, INFO_XFER_CMD); - //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); -} - -static void -dc390_Nop_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ -} - -static void -dc390_Nop_1( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ -} - - -static void -dc390_SetXferRate( struct dc390_acb* pACB, struct dc390_dcb* pDCB ) -{ - u8 bval, i, cnt; - struct dc390_dcb* ptr; - - if( !(pDCB->TargetLUN) ) - { - if( !pACB->scan_devices ) - { - ptr = pACB->pLinkDCB; - cnt = pACB->DCBCnt; - bval = pDCB->TargetID; - for(i=0; iTargetID == bval ) - { - ptr->SyncPeriod = pDCB->SyncPeriod; - ptr->SyncOffset = pDCB->SyncOffset; - ptr->CtrlR3 = pDCB->CtrlR3; - ptr->CtrlR4 = pDCB->CtrlR4; - ptr->SyncMode = pDCB->SyncMode; - } - ptr = ptr->pNextDCB; - } - } - } - return; -} - - -static void -dc390_Disconnect( struct dc390_acb* pACB ) -{ - struct dc390_dcb *pDCB; - struct dc390_srb *pSRB, *psrb; - u8 i, cnt; - - DEBUG0(printk(KERN_INFO "DISC,")); - - if (!pACB->Connected) printk(KERN_ERR "DC390: Disconnect not-connected bus?\n"); - pACB->Connected = 0; - pDCB = pACB->pActiveDCB; - if (!pDCB) - { - DEBUG0(printk(KERN_ERR "ACB:%p->ActiveDCB:%p IOPort:%04x IRQ:%02x !\n",\ - pACB, pDCB, pACB->IOPortBase, pACB->IRQLevel)); - mdelay(400); - DC390_read8 (INT_Status); /* Reset Pending INT */ - DC390_write8 (ScsiCmd, EN_SEL_RESEL); - return; - } - DC390_write8 (ScsiCmd, EN_SEL_RESEL); - pSRB = pDCB->pActiveSRB; - pACB->pActiveDCB = NULL; - pSRB->ScsiPhase = SCSI_NOP0; - if( pSRB->SRBState & SRB_UNEXPECT_RESEL ) - pSRB->SRBState = 0; - else if( pSRB->SRBState & SRB_ABORT_SENT ) - { - pDCB->TagMask = 0; - pDCB->DCBFlag = 0; - cnt = pDCB->GoingSRBCnt; - pDCB->GoingSRBCnt = 0; - pSRB = pDCB->pGoingSRB; - for( i=0; i < cnt; i++) - { - psrb = pSRB->pNextSRB; - dc390_Free_insert (pACB, pSRB); - pSRB = psrb; - } - pDCB->pGoingSRB = NULL; - } - else - { - if( (pSRB->SRBState & (SRB_START_+SRB_MSGOUT)) || - !(pSRB->SRBState & (SRB_DISCONNECT+SRB_COMPLETED)) ) - { /* Selection time out */ - pSRB->AdaptStatus = H_SEL_TIMEOUT; - pSRB->TargetStatus = 0; - goto disc1; - } - else if (!(pSRB->SRBState & SRB_DISCONNECT) && (pSRB->SRBState & SRB_COMPLETED)) - { -disc1: - dc390_freetag (pDCB, pSRB); - pDCB->pActiveSRB = NULL; - pSRB->SRBState = SRB_FREE; - dc390_SRBdone( pACB, pDCB, pSRB); - } - } - pACB->MsgLen = 0; -} - - -static void -dc390_Reselect( struct dc390_acb* pACB ) -{ - struct dc390_dcb* pDCB; - struct dc390_srb* pSRB; - u8 id, lun; - - DEBUG0(printk(KERN_INFO "RSEL,")); - pACB->Connected = 1; - pDCB = pACB->pActiveDCB; - if( pDCB ) - { /* Arbitration lost but Reselection won */ - DEBUG0(printk ("DC390: (ActiveDCB != 0: Arb. lost but resel. won)!\n")); - pSRB = pDCB->pActiveSRB; - if( !( pACB->scan_devices ) ) - { - struct scsi_cmnd *pcmd = pSRB->pcmd; - scsi_set_resid(pcmd, scsi_bufflen(pcmd)); - SET_RES_DID(pcmd->result, DID_SOFT_ERROR); - dc390_Going_remove(pDCB, pSRB); - dc390_Free_insert(pACB, pSRB); - pcmd->scsi_done (pcmd); - DEBUG0(printk(KERN_DEBUG"DC390: Return SRB %p to free\n", pSRB)); - } - } - /* Get ID */ - lun = DC390_read8 (ScsiFifo); - DEBUG0(printk ("Dev %02x,", lun)); - if (!(lun & (1 << pACB->pScsiHost->this_id))) - printk (KERN_ERR "DC390: Reselection must select host adapter: %02x!\n", lun); - else - lun ^= 1 << pACB->pScsiHost->this_id; /* Mask AdapterID */ - id = 0; while (lun >>= 1) id++; - /* Get LUN */ - lun = DC390_read8 (ScsiFifo); - if (!(lun & IDENTIFY_BASE)) printk (KERN_ERR "DC390: Resel: Expect identify message!\n"); - lun &= 7; - DEBUG0(printk ("(%02i-%i),", id, lun)); - pDCB = dc390_findDCB (pACB, id, lun); - if (!pDCB) - { - printk (KERN_ERR "DC390: Reselect from non existing device (%02i-%i)\n", - id, lun); - return; - } - pACB->pActiveDCB = pDCB; - /* TagQ: We expect a message soon, so never mind the exact SRB */ - if( pDCB->SyncMode & EN_TAG_QUEUEING ) - { - pSRB = pACB->pTmpSRB; - pDCB->pActiveSRB = pSRB; - } - else - { - pSRB = pDCB->pActiveSRB; - if( !pSRB || !(pSRB->SRBState & SRB_DISCONNECT) ) - { - pSRB= pACB->pTmpSRB; - pSRB->SRBState = SRB_UNEXPECT_RESEL; - printk (KERN_ERR "DC390: Reselect without outstanding cmnd (%02i-%i)\n", - id, lun); - pDCB->pActiveSRB = pSRB; - dc390_EnableMsgOut_Abort ( pACB, pSRB ); - } - else - { - if( pDCB->DCBFlag & ABORT_DEV_ ) - { - pSRB->SRBState = SRB_ABORT_SENT; - printk (KERN_INFO "DC390: Reselect: Abort (%02i-%i)\n", - id, lun); - dc390_EnableMsgOut_Abort( pACB, pSRB ); - } - else - pSRB->SRBState = SRB_DATA_XFER; - } - } - - DEBUG1(printk (KERN_DEBUG "Resel SRB(%p): TagNum (%02x)\n", pSRB, pSRB->TagNumber)); - pSRB->ScsiPhase = SCSI_NOP0; - DC390_write8 (Scsi_Dest_ID, pDCB->TargetID); - DC390_write8 (Sync_Period, pDCB->SyncPeriod); - DC390_write8 (Sync_Offset, pDCB->SyncOffset); - DC390_write8 (CtrlReg1, pDCB->CtrlR1); - DC390_write8 (CtrlReg3, pDCB->CtrlR3); - DC390_write8 (CtrlReg4, pDCB->CtrlR4); /* ; Glitch eater */ - DC390_write8 (ScsiCmd, MSG_ACCEPTED_CMD); /* ;to release the /ACK signal */ -} - -static int __inline__ -dc390_RequestSense(struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB) -{ - struct scsi_cmnd *pcmd; - - pcmd = pSRB->pcmd; - - REMOVABLEDEBUG(printk(KERN_INFO "DC390: RequestSense(Cmd %02x, Id %02x, LUN %02x)\n",\ - pcmd->cmnd[0], pDCB->TargetID, pDCB->TargetLUN)); - - pSRB->SRBFlag |= AUTO_REQSENSE; - pSRB->SavedTotXLen = pSRB->TotalXferredLen; - pSRB->AdaptStatus = 0; - pSRB->TargetStatus = 0; /* CHECK_CONDITION<<1; */ - - /* We are called from SRBdone, original PCI mapping has been removed - * already, new one is set up from StartSCSI */ - pSRB->SGIndex = 0; - - pSRB->TotalXferredLen = 0; - pSRB->SGToBeXferLen = 0; - return dc390_StartSCSI(pACB, pDCB, pSRB); -} - - -static void -dc390_SRBdone( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB ) -{ - u8 status; - struct scsi_cmnd *pcmd; - - pcmd = pSRB->pcmd; - /* KG: Moved pci_unmap here */ - dc390_pci_unmap(pSRB); - - status = pSRB->TargetStatus; - - DEBUG0(printk (" SRBdone (%02x,%08x), SRB %p\n", status, pcmd->result, pSRB)); - if(pSRB->SRBFlag & AUTO_REQSENSE) - { /* Last command was a Request Sense */ - pSRB->SRBFlag &= ~AUTO_REQSENSE; - pSRB->AdaptStatus = 0; - pSRB->TargetStatus = SAM_STAT_CHECK_CONDITION; - - //pcmd->result = MK_RES(DRIVER_SENSE,DID_OK,0,status); - if (status == SAM_STAT_CHECK_CONDITION) - pcmd->result = MK_RES_LNX(0, DID_BAD_TARGET, 0, /*CHECK_CONDITION*/0); - else /* Retry */ - { - if( pSRB->pcmd->cmnd[0] == TEST_UNIT_READY /* || pSRB->pcmd->cmnd[0] == START_STOP */) - { - /* Don't retry on TEST_UNIT_READY */ - pcmd->result = MK_RES_LNX(DRIVER_SENSE, DID_OK, 0, SAM_STAT_CHECK_CONDITION); - REMOVABLEDEBUG(printk(KERN_INFO "Cmd=%02x, Result=%08x, XferL=%08x\n",pSRB->pcmd->cmnd[0],\ - (u32) pcmd->result, (u32) pSRB->TotalXferredLen)); - } else { - SET_RES_DRV(pcmd->result, DRIVER_SENSE); - //pSRB->ScsiCmdLen = (u8) (pSRB->Segment1[0] >> 8); - DEBUG0 (printk ("DC390: RETRY (%02x), target %02i-%02i\n", pcmd->cmnd[0], pcmd->device->id, (u8)pcmd->device->lun)); - pSRB->TotalXferredLen = 0; - SET_RES_DID(pcmd->result, DID_SOFT_ERROR); - } - } - goto cmd_done; - } - if( status ) - { - if (status == SAM_STAT_CHECK_CONDITION) - { - if (dc390_RequestSense(pACB, pDCB, pSRB)) { - SET_RES_DID(pcmd->result, DID_ERROR); - goto cmd_done; - } - return; - } - else if (status == SAM_STAT_TASK_SET_FULL) - { - scsi_track_queue_full(pcmd->device, pDCB->GoingSRBCnt - 1); - DEBUG0 (printk ("DC390: RETRY (%02x), target %02i-%02i\n", pcmd->cmnd[0], pcmd->device->id, (u8)pcmd->device->lun)); - pSRB->TotalXferredLen = 0; - SET_RES_DID(pcmd->result, DID_SOFT_ERROR); - } - else if (status == SAM_STAT_BUSY && - (pcmd->cmnd[0] == TEST_UNIT_READY || pcmd->cmnd[0] == INQUIRY) && - pACB->scan_devices) - { - pSRB->AdaptStatus = 0; - pSRB->TargetStatus = status; - pcmd->result = MK_RES(0,0,pSRB->EndMessage,/*status*/0); - } - else - { /* Another error */ - pSRB->TotalXferredLen = 0; - SET_RES_DID(pcmd->result, DID_SOFT_ERROR); - goto cmd_done; - } - } - else - { /* Target status == 0 */ - status = pSRB->AdaptStatus; - if (status == H_OVER_UNDER_RUN) - { - pSRB->TargetStatus = 0; - SET_RES_DID(pcmd->result,DID_OK); - SET_RES_MSG(pcmd->result,pSRB->EndMessage); - } - else if (status == H_SEL_TIMEOUT) - { - pcmd->result = MK_RES(0, DID_NO_CONNECT, 0, 0); - /* Devices are removed below ... */ - } - else if( pSRB->SRBStatus & PARITY_ERROR) - { - //pcmd->result = MK_RES(0,DID_PARITY,pSRB->EndMessage,0); - SET_RES_DID(pcmd->result,DID_PARITY); - SET_RES_MSG(pcmd->result,pSRB->EndMessage); - } - else /* No error */ - { - pSRB->AdaptStatus = 0; - pSRB->TargetStatus = 0; - SET_RES_DID(pcmd->result,DID_OK); - } - } - -cmd_done: - scsi_set_resid(pcmd, scsi_bufflen(pcmd) - pSRB->TotalXferredLen); - - dc390_Going_remove (pDCB, pSRB); - /* Add to free list */ - dc390_Free_insert (pACB, pSRB); - - DEBUG0(printk (KERN_DEBUG "DC390: SRBdone: done\n")); - pcmd->scsi_done (pcmd); - - return; -} - - -/* Remove all SRBs from Going list and inform midlevel */ -static void -dc390_DoingSRB_Done(struct dc390_acb* pACB, struct scsi_cmnd *cmd) -{ - struct dc390_dcb *pDCB, *pdcb; - struct dc390_srb *psrb, *psrb2; - int i; - struct scsi_cmnd *pcmd; - - pDCB = pACB->pLinkDCB; - pdcb = pDCB; - if (! pdcb) return; - do - { - psrb = pdcb->pGoingSRB; - for (i = 0; i < pdcb->GoingSRBCnt; i++) - { - psrb2 = psrb->pNextSRB; - pcmd = psrb->pcmd; - dc390_Free_insert (pACB, psrb); - psrb = psrb2; - } - pdcb->GoingSRBCnt = 0; - pdcb->pGoingSRB = NULL; - pdcb->TagMask = 0; - pdcb = pdcb->pNextDCB; - } while( pdcb != pDCB ); -} - - -static void -dc390_ResetSCSIBus( struct dc390_acb* pACB ) -{ - //DC390_write8 (ScsiCmd, RST_DEVICE_CMD); - //udelay (250); - //DC390_write8 (ScsiCmd, NOP_CMD); - - DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); - DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); - DC390_write8 (ScsiCmd, RST_SCSI_BUS_CMD); - pACB->Connected = 0; - - return; -} - -static void -dc390_ScsiRstDetect( struct dc390_acb* pACB ) -{ - printk ("DC390: Rst_Detect: laststat = %08x\n", dc390_laststatus); - //DEBUG0(printk(KERN_INFO "RST_DETECT,")); - - DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); - /* Unlock before ? */ - /* delay half a second */ - udelay (1000); - DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); - pACB->last_reset = jiffies + 5*HZ/2 - + HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY]; - pACB->Connected = 0; - - if( pACB->ACBFlag & RESET_DEV ) - pACB->ACBFlag |= RESET_DONE; - else - { /* Reset was issued by sb else */ - pACB->ACBFlag |= RESET_DETECT; - - dc390_ResetDevParam( pACB ); - dc390_DoingSRB_Done( pACB, NULL); - //dc390_RecoverSRB( pACB ); - pACB->pActiveDCB = NULL; - pACB->ACBFlag = 0; - } - return; -} - -static int DC390_queuecommand_lck(struct scsi_cmnd *cmd, - void (*done)(struct scsi_cmnd *)) -{ - struct scsi_device *sdev = cmd->device; - struct dc390_acb *acb = (struct dc390_acb *)sdev->host->hostdata; - struct dc390_dcb *dcb = sdev->hostdata; - struct dc390_srb *srb; - - if (sdev->queue_depth <= dcb->GoingSRBCnt) - goto device_busy; - if (acb->pActiveDCB) - goto host_busy; - if (acb->ACBFlag & (RESET_DETECT|RESET_DONE|RESET_DEV)) - goto host_busy; - - srb = acb->pFreeSRB; - if (unlikely(srb == NULL)) - goto host_busy; - - cmd->scsi_done = done; - cmd->result = 0; - acb->Cmds++; - - acb->pFreeSRB = srb->pNextSRB; - srb->pNextSRB = NULL; - - srb->pSRBDCB = dcb; - srb->pcmd = cmd; - cmd->host_scribble = (char *)srb; - - srb->SGIndex = 0; - srb->AdaptStatus = 0; - srb->TargetStatus = 0; - srb->MsgCnt = 0; - - srb->SRBStatus = 0; - srb->SRBFlag = 0; - srb->SRBState = 0; - srb->TotalXferredLen = 0; - srb->SGBusAddr = 0; - srb->SGToBeXferLen = 0; - srb->ScsiPhase = 0; - srb->EndMessage = 0; - srb->TagNumber = SCSI_NO_TAG; - - if (dc390_StartSCSI(acb, dcb, srb)) { - dc390_Free_insert(acb, srb); - goto host_busy; - } - - dc390_Going_append(dcb, srb); - - return 0; - - host_busy: - return SCSI_MLQUEUE_HOST_BUSY; - - device_busy: - return SCSI_MLQUEUE_DEVICE_BUSY; -} - -static DEF_SCSI_QCMD(DC390_queuecommand) - -static void dc390_dumpinfo (struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB) -{ - struct pci_dev *pdev; - u16 pstat; - - if (!pDCB) pDCB = pACB->pActiveDCB; - if (!pSRB && pDCB) pSRB = pDCB->pActiveSRB; - - if (pSRB) - { - printk ("DC390: SRB: Xferred %08lx, Remain %08lx, State %08x, Phase %02x\n", - pSRB->TotalXferredLen, pSRB->SGToBeXferLen, pSRB->SRBState, - pSRB->ScsiPhase); - printk ("DC390: AdpaterStatus: %02x, SRB Status %02x\n", pSRB->AdaptStatus, pSRB->SRBStatus); - } - printk ("DC390: Status of last IRQ (DMA/SC/Int/IRQ): %08x\n", dc390_laststatus); - printk ("DC390: Register dump: SCSI block:\n"); - printk ("DC390: XferCnt Cmd Stat IntS IRQS FFIS Ctl1 Ctl2 Ctl3 Ctl4\n"); - printk ("DC390: %06x %02x %02x %02x", - DC390_read8(CtcReg_Low) + (DC390_read8(CtcReg_Mid) << 8) + (DC390_read8(CtcReg_High) << 16), - DC390_read8(ScsiCmd), DC390_read8(Scsi_Status), DC390_read8(Intern_State)); - printk (" %02x %02x %02x %02x %02x %02x\n", - DC390_read8(INT_Status), DC390_read8(Current_Fifo), DC390_read8(CtrlReg1), - DC390_read8(CtrlReg2), DC390_read8(CtrlReg3), DC390_read8(CtrlReg4)); - DC390_write32 (DMA_ScsiBusCtrl, WRT_ERASE_DMA_STAT | EN_INT_ON_PCI_ABORT); - if (DC390_read8(Current_Fifo) & 0x1f) - { - printk ("DC390: FIFO:"); - while (DC390_read8(Current_Fifo) & 0x1f) printk (" %02x", DC390_read8(ScsiFifo)); - printk ("\n"); - } - printk ("DC390: Register dump: DMA engine:\n"); - printk ("DC390: Cmd STrCnt SBusA WrkBC WrkAC Stat SBusCtrl\n"); - printk ("DC390: %02x %08x %08x %08x %08x %02x %08x\n", - DC390_read8(DMA_Cmd), DC390_read32(DMA_XferCnt), DC390_read32(DMA_XferAddr), - DC390_read32(DMA_Wk_ByteCntr), DC390_read32(DMA_Wk_AddrCntr), - DC390_read8(DMA_Status), DC390_read32(DMA_ScsiBusCtrl)); - DC390_write32 (DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT); - - pdev = pACB->pdev; - pci_read_config_word(pdev, PCI_STATUS, &pstat); - printk ("DC390: Register dump: PCI Status: %04x\n", pstat); - printk ("DC390: In case of driver trouble read Documentation/scsi/tmscsim.txt\n"); -} - - -static int DC390_abort(struct scsi_cmnd *cmd) -{ - struct dc390_acb *pACB = (struct dc390_acb*) cmd->device->host->hostdata; - struct dc390_dcb *pDCB = (struct dc390_dcb*) cmd->device->hostdata; - - scmd_printk(KERN_WARNING, cmd, "DC390: Abort command\n"); - - /* abort() is too stupid for already sent commands at the moment. - * If it's called we are in trouble anyway, so let's dump some info - * into the syslog at least. (KG, 98/08/20,99/06/20) */ - dc390_dumpinfo(pACB, pDCB, NULL); - - pDCB->DCBFlag |= ABORT_DEV_; - printk(KERN_INFO "DC390: Aborted.\n"); - - return FAILED; -} - - -static void dc390_ResetDevParam( struct dc390_acb* pACB ) -{ - struct dc390_dcb *pDCB, *pdcb; - - pDCB = pACB->pLinkDCB; - if (! pDCB) return; - pdcb = pDCB; - do - { - pDCB->SyncMode &= ~SYNC_NEGO_DONE; - pDCB->SyncPeriod = 0; - pDCB->SyncOffset = 0; - pDCB->TagMask = 0; - pDCB->CtrlR3 = FAST_CLK; - pDCB->CtrlR4 &= NEGATE_REQACKDATA | CTRL4_RESERVED | NEGATE_REQACK; - pDCB->CtrlR4 |= pACB->glitch_cfg; - pDCB = pDCB->pNextDCB; - } - while( pdcb != pDCB ); - pACB->ACBFlag &= ~(RESET_DEV | RESET_DONE | RESET_DETECT); - -} - -static int DC390_bus_reset (struct scsi_cmnd *cmd) -{ - struct dc390_acb* pACB = (struct dc390_acb*) cmd->device->host->hostdata; - u8 bval; - - spin_lock_irq(cmd->device->host->host_lock); - - bval = DC390_read8(CtrlReg1) | DIS_INT_ON_SCSI_RST; - DC390_write8(CtrlReg1, bval); /* disable IRQ on bus reset */ - - pACB->ACBFlag |= RESET_DEV; - dc390_ResetSCSIBus(pACB); - - dc390_ResetDevParam(pACB); - mdelay(1); - pACB->last_reset = jiffies + 3*HZ/2 - + HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY]; - - DC390_write8(ScsiCmd, CLEAR_FIFO_CMD); - DC390_read8(INT_Status); /* Reset Pending INT */ - - dc390_DoingSRB_Done(pACB, cmd); - - pACB->pActiveDCB = NULL; - pACB->ACBFlag = 0; - - bval = DC390_read8(CtrlReg1) & ~DIS_INT_ON_SCSI_RST; - DC390_write8(CtrlReg1, bval); /* re-enable interrupt */ - - spin_unlock_irq(cmd->device->host->host_lock); - - return SUCCESS; -} - -/** - * dc390_slave_alloc - Called by the scsi mid layer to tell us about a new - * scsi device that we need to deal with. - * - * @scsi_device: The new scsi device that we need to handle. - */ -static int dc390_slave_alloc(struct scsi_device *scsi_device) -{ - struct dc390_acb *pACB = (struct dc390_acb*) scsi_device->host->hostdata; - struct dc390_dcb *pDCB, *pDCB2 = NULL; - uint id = scsi_device->id; - uint lun = scsi_device->lun; - - pDCB = kzalloc(sizeof(struct dc390_dcb), GFP_KERNEL); - if (!pDCB) - return -ENOMEM; - - if (!pACB->DCBCnt++) { - pACB->pLinkDCB = pDCB; - pACB->pDCBRunRobin = pDCB; - } else { - pACB->pLastDCB->pNextDCB = pDCB; - } - - pDCB->pNextDCB = pACB->pLinkDCB; - pACB->pLastDCB = pDCB; - - pDCB->pDCBACB = pACB; - pDCB->TargetID = id; - pDCB->TargetLUN = lun; - - /* - * Some values are for all LUNs: Copy them - * In a clean way: We would have an own structure for a SCSI-ID - */ - if (lun && (pDCB2 = dc390_findDCB(pACB, id, 0))) { - pDCB->DevMode = pDCB2->DevMode; - pDCB->SyncMode = pDCB2->SyncMode & SYNC_NEGO_DONE; - pDCB->SyncPeriod = pDCB2->SyncPeriod; - pDCB->SyncOffset = pDCB2->SyncOffset; - pDCB->NegoPeriod = pDCB2->NegoPeriod; - - pDCB->CtrlR3 = pDCB2->CtrlR3; - pDCB->CtrlR4 = pDCB2->CtrlR4; - } else { - u8 index = pACB->AdapterIndex; - PEEprom prom = (PEEprom) &dc390_eepromBuf[index][id << 2]; - - pDCB->DevMode = prom->EE_MODE1; - pDCB->NegoPeriod = - (dc390_clock_period1[prom->EE_SPEED] * 25) >> 2; - pDCB->CtrlR3 = FAST_CLK; - pDCB->CtrlR4 = pACB->glitch_cfg | CTRL4_RESERVED; - if (dc390_eepromBuf[index][EE_MODE2] & ACTIVE_NEGATION) - pDCB->CtrlR4 |= NEGATE_REQACKDATA | NEGATE_REQACK; - } - - if (pDCB->DevMode & SYNC_NEGO_) - pDCB->SyncMode |= SYNC_ENABLE; - else { - pDCB->SyncMode = 0; - pDCB->SyncOffset &= ~0x0f; - } - - pDCB->CtrlR1 = pACB->pScsiHost->this_id; - if (pDCB->DevMode & PARITY_CHK_) - pDCB->CtrlR1 |= PARITY_ERR_REPO; - - pACB->scan_devices = 1; - scsi_device->hostdata = pDCB; - return 0; -} - -/** - * dc390_slave_destroy - Called by the scsi mid layer to tell us about a - * device that is going away. - * - * @scsi_device: The scsi device that we need to remove. - */ -static void dc390_slave_destroy(struct scsi_device *scsi_device) -{ - struct dc390_acb* pACB = (struct dc390_acb*) scsi_device->host->hostdata; - struct dc390_dcb* pDCB = (struct dc390_dcb*) scsi_device->hostdata; - struct dc390_dcb* pPrevDCB = pACB->pLinkDCB; - - pACB->scan_devices = 0; - - BUG_ON(pDCB->GoingSRBCnt > 1); - - if (pDCB == pACB->pLinkDCB) { - if (pACB->pLastDCB == pDCB) { - pDCB->pNextDCB = NULL; - pACB->pLastDCB = NULL; - } - pACB->pLinkDCB = pDCB->pNextDCB; - } else { - while (pPrevDCB->pNextDCB != pDCB) - pPrevDCB = pPrevDCB->pNextDCB; - pPrevDCB->pNextDCB = pDCB->pNextDCB; - if (pDCB == pACB->pLastDCB) - pACB->pLastDCB = pPrevDCB; - } - - if (pDCB == pACB->pActiveDCB) - pACB->pActiveDCB = NULL; - if (pDCB == pACB->pLinkDCB) - pACB->pLinkDCB = pDCB->pNextDCB; - if (pDCB == pACB->pDCBRunRobin) - pACB->pDCBRunRobin = pDCB->pNextDCB; - kfree(pDCB); - - pACB->DCBCnt--; -} - -static int dc390_slave_configure(struct scsi_device *sdev) -{ - struct dc390_acb *acb = (struct dc390_acb *)sdev->host->hostdata; - struct dc390_dcb *dcb = (struct dc390_dcb *)sdev->hostdata; - - acb->scan_devices = 0; - - /* - * XXX: Note that while this driver used to called scsi_activate_tcq, - * it never actually set a tag type, so emulate the old behavior. - */ - scsi_set_tag_type(sdev, 0); - - if (sdev->tagged_supported && (dcb->DevMode & TAG_QUEUEING_)) { - dcb->SyncMode |= EN_TAG_QUEUEING; - scsi_change_queue_depth(sdev, acb->TagMaxNum); - } - - return 0; -} - -static struct scsi_host_template driver_template = { - .module = THIS_MODULE, - .proc_name = "tmscsim", - .name = DC390_BANNER " V" DC390_VERSION, - .slave_alloc = dc390_slave_alloc, - .slave_configure = dc390_slave_configure, - .slave_destroy = dc390_slave_destroy, - .queuecommand = DC390_queuecommand, - .eh_abort_handler = DC390_abort, - .eh_bus_reset_handler = DC390_bus_reset, - .can_queue = 1, - .this_id = 7, - .sg_tablesize = SG_ALL, - .cmd_per_lun = 1, - .use_clustering = ENABLE_CLUSTERING, - .max_sectors = 0x4000, /* 8MiB = 16 * 1024 * 512 */ - .use_blk_tags = 1, -}; - -/*********************************************************************** - * Functions for access to DC390 EEPROM - * and some to emulate it - * - **********************************************************************/ - -static void dc390_eeprom_prepare_read(struct pci_dev *pdev, u8 cmd) -{ - u8 carryFlag = 1, j = 0x80, bval; - int i; - - for (i = 0; i < 9; i++) { - if (carryFlag) { - pci_write_config_byte(pdev, 0x80, 0x40); - bval = 0xc0; - } else - bval = 0x80; - - udelay(160); - pci_write_config_byte(pdev, 0x80, bval); - udelay(160); - pci_write_config_byte(pdev, 0x80, 0); - udelay(160); - - carryFlag = (cmd & j) ? 1 : 0; - j >>= 1; - } -} - -static u16 dc390_eeprom_get_data(struct pci_dev *pdev) -{ - int i; - u16 wval = 0; - u8 bval; - - for (i = 0; i < 16; i++) { - wval <<= 1; - - pci_write_config_byte(pdev, 0x80, 0x80); - udelay(160); - pci_write_config_byte(pdev, 0x80, 0x40); - udelay(160); - pci_read_config_byte(pdev, 0x00, &bval); - - if (bval == 0x22) - wval |= 1; - } - - return wval; -} - -static void dc390_read_eeprom(struct pci_dev *pdev, u16 *ptr) -{ - u8 cmd = EEPROM_READ, i; - - for (i = 0; i < 0x40; i++) { - pci_write_config_byte(pdev, 0xc0, 0); - udelay(160); - - dc390_eeprom_prepare_read(pdev, cmd++); - *ptr++ = dc390_eeprom_get_data(pdev); - - pci_write_config_byte(pdev, 0x80, 0); - pci_write_config_byte(pdev, 0x80, 0); - udelay(160); - } -} - -/* Override EEprom values with explicitly set values */ -static void dc390_eeprom_override(u8 index) -{ - u8 *ptr = (u8 *) dc390_eepromBuf[index], id; - - /* Adapter Settings */ - if (tmscsim[0] != -2) - ptr[EE_ADAPT_SCSI_ID] = (u8)tmscsim[0]; /* Adapter ID */ - if (tmscsim[3] != -2) - ptr[EE_MODE2] = (u8)tmscsim[3]; - if (tmscsim[5] != -2) - ptr[EE_DELAY] = tmscsim[5]; /* Reset delay */ - if (tmscsim[4] != -2) - ptr[EE_TAG_CMD_NUM] = (u8)tmscsim[4]; /* Tagged Cmds */ - - /* Device Settings */ - for (id = 0; id < MAX_SCSI_ID; id++) { - if (tmscsim[2] != -2) - ptr[id << 2] = (u8)tmscsim[2]; /* EE_MODE1 */ - if (tmscsim[1] != -2) - ptr[(id << 2) + 1] = (u8)tmscsim[1]; /* EE_Speed */ - } -} - -static int tmscsim_def[] = { - 7, - 0 /* 10MHz */, - PARITY_CHK_ | SEND_START_ | EN_DISCONNECT_ | SYNC_NEGO_ | TAG_QUEUEING_, - MORE2_DRV | GREATER_1G | RST_SCSI_BUS | ACTIVE_NEGATION | LUN_CHECK, - 3 /* 16 Tags per LUN */, - 1 /* s delay after Reset */, -}; - -/* Copy defaults over set values where missing */ -static void dc390_fill_with_defaults (void) -{ - int i; - - for (i = 0; i < 6; i++) { - if (tmscsim[i] < 0 || tmscsim[i] > 255) - tmscsim[i] = tmscsim_def[i]; - } - - /* Sanity checks */ - if (tmscsim[0] > 7) - tmscsim[0] = 7; - if (tmscsim[1] > 7) - tmscsim[1] = 4; - if (tmscsim[4] > 5) - tmscsim[4] = 4; - if (tmscsim[5] > 180) - tmscsim[5] = 180; -} - -static void dc390_check_eeprom(struct pci_dev *pdev, u8 index) -{ - u8 interpd[] = {1, 3, 5, 10, 16, 30, 60, 120}; - u8 EEbuf[128]; - u16 *ptr = (u16 *)EEbuf, wval = 0; - int i; - - dc390_read_eeprom(pdev, ptr); - memcpy(dc390_eepromBuf[index], EEbuf, EE_ADAPT_SCSI_ID); - memcpy(&dc390_eepromBuf[index][EE_ADAPT_SCSI_ID], - &EEbuf[REAL_EE_ADAPT_SCSI_ID], EE_LEN - EE_ADAPT_SCSI_ID); - - dc390_eepromBuf[index][EE_DELAY] = interpd[dc390_eepromBuf[index][EE_DELAY]]; - - for (i = 0; i < 0x40; i++, ptr++) - wval += *ptr; - - /* no Tekram EEprom found */ - if (wval != 0x1234) { - int speed; - - printk(KERN_INFO "DC390_init: No EEPROM found! Trying default settings ...\n"); - - /* - * XXX(hch): bogus, because we might have tekram and - * non-tekram hbas in a single machine. - */ - dc390_fill_with_defaults(); - - speed = dc390_clock_speed[tmscsim[1]]; - printk(KERN_INFO "DC390: Used defaults: AdaptID=%i, SpeedIdx=%i (%i.%i MHz), " - "DevMode=0x%02x, AdaptMode=0x%02x, TaggedCmnds=%i (%i), DelayReset=%is\n", - tmscsim[0], tmscsim[1], speed / 10, speed % 10, - (u8)tmscsim[2], (u8)tmscsim[3], tmscsim[4], 2 << (tmscsim[4]), tmscsim[5]); - } -} - -static void dc390_init_hw(struct dc390_acb *pACB, u8 index) -{ - struct Scsi_Host *shost = pACB->pScsiHost; - u8 dstate; - - /* Disable SCSI bus reset interrupt */ - DC390_write8(CtrlReg1, DIS_INT_ON_SCSI_RST | shost->this_id); - - if (pACB->Gmode2 & RST_SCSI_BUS) { - dc390_ResetSCSIBus(pACB); - udelay(1000); - pACB->last_reset = jiffies + HZ/2 + - HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY]; - } - - pACB->ACBFlag = 0; - - /* Reset Pending INT */ - DC390_read8(INT_Status); - - /* 250ms selection timeout */ - DC390_write8(Scsi_TimeOut, SEL_TIMEOUT); - - /* Conversion factor = 0 , 40MHz clock */ - DC390_write8(Clk_Factor, CLK_FREQ_40MHZ); - - /* NOP cmd - clear command register */ - DC390_write8(ScsiCmd, NOP_CMD); - - /* Enable Feature and SCSI-2 */ - DC390_write8(CtrlReg2, EN_FEATURE+EN_SCSI2_CMD); - - /* Fast clock */ - DC390_write8(CtrlReg3, FAST_CLK); - - /* Negation */ - DC390_write8(CtrlReg4, pACB->glitch_cfg | /* glitch eater */ - (dc390_eepromBuf[index][EE_MODE2] & ACTIVE_NEGATION) ? - NEGATE_REQACKDATA : 0); - - /* Clear Transfer Count High: ID */ - DC390_write8(CtcReg_High, 0); - DC390_write8(DMA_Cmd, DMA_IDLE_CMD); - DC390_write8(ScsiCmd, CLEAR_FIFO_CMD); - DC390_write32(DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT); - - dstate = DC390_read8(DMA_Status); - DC390_write8(DMA_Status, dstate); -} - -static int dc390_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) -{ - struct dc390_acb *pACB; - struct Scsi_Host *shost; - unsigned long io_port; - int error = -ENODEV, i; - - if (pci_enable_device(pdev)) - goto out; - - pci_set_master(pdev); - - error = -ENOMEM; - if (disable_clustering) - driver_template.use_clustering = DISABLE_CLUSTERING; - shost = scsi_host_alloc(&driver_template, sizeof(struct dc390_acb)); - if (!shost) - goto out_disable_device; - - pACB = (struct dc390_acb *)shost->hostdata; - memset(pACB, 0, sizeof(struct dc390_acb)); - - dc390_check_eeprom(pdev, dc390_adapterCnt); - dc390_eeprom_override(dc390_adapterCnt); - - io_port = pci_resource_start(pdev, 0); - - shost->this_id = dc390_eepromBuf[dc390_adapterCnt][EE_ADAPT_SCSI_ID]; - shost->io_port = io_port; - shost->n_io_port = 0x80; - shost->irq = pdev->irq; - shost->base = io_port; - shost->unique_id = io_port; - - pACB->last_reset = jiffies; - pACB->pScsiHost = shost; - pACB->IOPortBase = (u16) io_port; - pACB->IRQLevel = pdev->irq; - - shost->max_id = 8; - - if (shost->max_id - 1 == - dc390_eepromBuf[dc390_adapterCnt][EE_ADAPT_SCSI_ID]) - shost->max_id--; - - if (dc390_eepromBuf[dc390_adapterCnt][EE_MODE2] & LUN_CHECK) - shost->max_lun = 8; - else - shost->max_lun = 1; - - pACB->pFreeSRB = pACB->SRB_array; - pACB->SRBCount = MAX_SRB_CNT; - pACB->AdapterIndex = dc390_adapterCnt; - pACB->TagMaxNum = - 2 << dc390_eepromBuf[dc390_adapterCnt][EE_TAG_CMD_NUM]; - pACB->Gmode2 = dc390_eepromBuf[dc390_adapterCnt][EE_MODE2]; - - for (i = 0; i < pACB->SRBCount-1; i++) - pACB->SRB_array[i].pNextSRB = &pACB->SRB_array[i+1]; - pACB->SRB_array[pACB->SRBCount-1].pNextSRB = NULL; - pACB->pTmpSRB = &pACB->TmpSRB; - - pACB->sel_timeout = SEL_TIMEOUT; - pACB->glitch_cfg = EATER_25NS; - pACB->pdev = pdev; - - if (!request_region(io_port, shost->n_io_port, "tmscsim")) { - printk(KERN_ERR "DC390: register IO ports error!\n"); - goto out_host_put; - } - - /* Reset Pending INT */ - DC390_read8_(INT_Status, io_port); - - if (request_irq(pdev->irq, do_DC390_Interrupt, IRQF_SHARED, - "tmscsim", pACB)) { - printk(KERN_ERR "DC390: register IRQ error!\n"); - goto out_release_region; - } - - dc390_init_hw(pACB, dc390_adapterCnt); - - dc390_adapterCnt++; - - pci_set_drvdata(pdev, shost); - - error = scsi_add_host(shost, &pdev->dev); - if (error) - goto out_free_irq; - scsi_scan_host(shost); - return 0; - - out_free_irq: - free_irq(pdev->irq, pACB); - out_release_region: - release_region(io_port, shost->n_io_port); - out_host_put: - scsi_host_put(shost); - out_disable_device: - pci_disable_device(pdev); - out: - return error; -} - -/** - * dc390_remove_one - Called to remove a single instance of the adapter. - * - * @dev: The PCI device to remove. - */ -static void dc390_remove_one(struct pci_dev *dev) -{ - struct Scsi_Host *scsi_host = pci_get_drvdata(dev); - unsigned long iflags; - struct dc390_acb* pACB = (struct dc390_acb*) scsi_host->hostdata; - u8 bval; - - scsi_remove_host(scsi_host); - - spin_lock_irqsave(scsi_host->host_lock, iflags); - pACB->ACBFlag = RESET_DEV; - bval = DC390_read8(CtrlReg1) | DIS_INT_ON_SCSI_RST; - DC390_write8 (CtrlReg1, bval); /* disable interrupt */ - if (pACB->Gmode2 & RST_SCSI_BUS) - dc390_ResetSCSIBus(pACB); - spin_unlock_irqrestore(scsi_host->host_lock, iflags); - - free_irq(scsi_host->irq, pACB); - release_region(scsi_host->io_port, scsi_host->n_io_port); - - pci_disable_device(dev); - scsi_host_put(scsi_host); -} - -static struct pci_device_id tmscsim_pci_tbl[] = { - { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD53C974, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, - { } -}; -MODULE_DEVICE_TABLE(pci, tmscsim_pci_tbl); - -static struct pci_driver dc390_driver = { - .name = "tmscsim", - .id_table = tmscsim_pci_tbl, - .probe = dc390_probe_one, - .remove = dc390_remove_one, -}; - -static int __init dc390_module_init(void) -{ - if (!disable_clustering) { - printk(KERN_INFO "DC390: clustering now enabled by default. If you get problems load\n"); - printk(KERN_INFO " with \"disable_clustering=1\" and report to maintainers\n"); - } - - if (tmscsim[0] == -1 || tmscsim[0] > 15) { - tmscsim[0] = 7; - tmscsim[1] = 4; - tmscsim[2] = PARITY_CHK_ | TAG_QUEUEING_; - tmscsim[3] = MORE2_DRV | GREATER_1G | RST_SCSI_BUS | ACTIVE_NEGATION; - tmscsim[4] = 2; - tmscsim[5] = 10; - printk (KERN_INFO "DC390: Using safe settings.\n"); - } - - return pci_register_driver(&dc390_driver); -} - -static void __exit dc390_module_exit(void) -{ - pci_unregister_driver(&dc390_driver); -} - -module_init(dc390_module_init); -module_exit(dc390_module_exit); - -#ifndef MODULE -static int __init dc390_setup (char *str) -{ - int ints[8],i, im; - - get_options(str, ARRAY_SIZE(ints), ints); - im = ints[0]; - - if (im > 6) { - printk (KERN_NOTICE "DC390: ignore extra params!\n"); - im = 6; - } - - for (i = 0; i < im; i++) - tmscsim[i] = ints[i+1]; - /* dc390_checkparams (); */ - return 1; -} - -__setup("tmscsim=", dc390_setup); -#endif diff --git a/drivers/scsi/tmscsim.h b/drivers/scsi/tmscsim.h deleted file mode 100644 index c9ad4bb77098..000000000000 --- a/drivers/scsi/tmscsim.h +++ /dev/null @@ -1,549 +0,0 @@ -/*********************************************************************** -;* File Name : TMSCSIM.H * -;* TEKRAM DC-390(T) PCI SCSI Bus Master Host Adapter * -;* Device Driver * -;***********************************************************************/ -/* $Id: tmscsim.h,v 2.15.2.3 2000/11/17 20:52:27 garloff Exp $ */ - -#ifndef _TMSCSIM_H -#define _TMSCSIM_H - -#include - -#define MAX_ADAPTER_NUM 4 -#define MAX_SG_LIST_BUF 16 /* Not used */ -#define MAX_SCSI_ID 8 -#define MAX_SRB_CNT 50 /* Max number of started commands */ - -#define SEL_TIMEOUT 153 /* 250 ms selection timeout (@ 40 MHz) */ - -/* -;----------------------------------------------------------------------- -; SCSI Request Block -;----------------------------------------------------------------------- -*/ -struct dc390_srb -{ -//u8 CmdBlock[12]; - -struct dc390_srb *pNextSRB; -struct dc390_dcb *pSRBDCB; -struct scsi_cmnd *pcmd; -struct scatterlist *pSegmentList; - -struct scatterlist Segmentx; /* make a one entry of S/G list table */ - -unsigned long SGBusAddr; /*;a segment starting address as seen by AM53C974A - in CPU endianness. We're only getting 32-bit bus - addresses by default */ -unsigned long SGToBeXferLen; /*; to be xfer length */ -unsigned long TotalXferredLen; -unsigned long SavedTotXLen; -unsigned long Saved_Ptr; -u32 SRBState; - -u8 SRBStatus; -u8 SRBFlag; /*; b0-AutoReqSense,b6-Read,b7-write */ - /*; b4-settimeout,b5-Residual valid */ -u8 AdaptStatus; -u8 TargetStatus; - -u8 ScsiPhase; -s8 TagNumber; -u8 SGIndex; -u8 SGcount; - -u8 MsgCnt; -u8 EndMessage; - -u8 MsgInBuf[6]; -u8 MsgOutBuf[6]; - -//u8 IORBFlag; /*;81h-Reset, 2-retry */ -}; - - -/* -;----------------------------------------------------------------------- -; Device Control Block -;----------------------------------------------------------------------- -*/ -struct dc390_dcb -{ -struct dc390_dcb *pNextDCB; -struct dc390_acb *pDCBACB; - -/* Queued SRBs */ -struct dc390_srb *pGoingSRB; -struct dc390_srb *pGoingLast; -struct dc390_srb *pActiveSRB; -u8 GoingSRBCnt; - -u32 TagMask; - -u8 TargetID; /*; SCSI Target ID (SCSI Only) */ -u8 TargetLUN; /*; SCSI Log. Unit (SCSI Only) */ -u8 DevMode; -u8 DCBFlag; - -u8 CtrlR1; -u8 CtrlR3; -u8 CtrlR4; - -u8 SyncMode; /*; 0:async mode */ -u8 NegoPeriod; /*;for nego. */ -u8 SyncPeriod; /*;for reg. */ -u8 SyncOffset; /*;for reg. and nego.(low nibble) */ -}; - - -/* -;----------------------------------------------------------------------- -; Adapter Control Block -;----------------------------------------------------------------------- -*/ -struct dc390_acb -{ -struct Scsi_Host *pScsiHost; -u16 IOPortBase; -u8 IRQLevel; -u8 status; - -u8 SRBCount; -u8 AdapterIndex; /*; nth Adapter this driver */ -u8 DCBCnt; - -u8 TagMaxNum; -u8 ACBFlag; -u8 Gmode2; -u8 scan_devices; - -struct dc390_dcb *pLinkDCB; -struct dc390_dcb *pLastDCB; -struct dc390_dcb *pDCBRunRobin; - -struct dc390_dcb *pActiveDCB; -struct dc390_srb *pFreeSRB; -struct dc390_srb *pTmpSRB; - -u8 msgin123[4]; -u8 Connected; -u8 pad; - -#if defined(USE_SPINLOCKS) && USE_SPINLOCKS > 1 && (defined(CONFIG_SMP) || DEBUG_SPINLOCKS > 0) -spinlock_t lock; -#endif -u8 sel_timeout; -u8 glitch_cfg; - -u8 MsgLen; -u8 Ignore_IRQ; /* Not used */ - -struct pci_dev *pdev; - -unsigned long last_reset; -unsigned long Cmds; -u32 SelLost; -u32 SelConn; -u32 CmdInQ; -u32 CmdOutOfSRB; - -struct dc390_srb TmpSRB; -struct dc390_srb SRB_array[MAX_SRB_CNT]; /* 50 SRBs */ -}; - - -/*;-----------------------------------------------------------------------*/ - - -#define BIT31 0x80000000 -#define BIT30 0x40000000 -#define BIT29 0x20000000 -#define BIT28 0x10000000 -#define BIT27 0x08000000 -#define BIT26 0x04000000 -#define BIT25 0x02000000 -#define BIT24 0x01000000 -#define BIT23 0x00800000 -#define BIT22 0x00400000 -#define BIT21 0x00200000 -#define BIT20 0x00100000 -#define BIT19 0x00080000 -#define BIT18 0x00040000 -#define BIT17 0x00020000 -#define BIT16 0x00010000 -#define BIT15 0x00008000 -#define BIT14 0x00004000 -#define BIT13 0x00002000 -#define BIT12 0x00001000 -#define BIT11 0x00000800 -#define BIT10 0x00000400 -#define BIT9 0x00000200 -#define BIT8 0x00000100 -#define BIT7 0x00000080 -#define BIT6 0x00000040 -#define BIT5 0x00000020 -#define BIT4 0x00000010 -#define BIT3 0x00000008 -#define BIT2 0x00000004 -#define BIT1 0x00000002 -#define BIT0 0x00000001 - -/*;---UnitCtrlFlag */ -#define UNIT_ALLOCATED BIT0 -#define UNIT_INFO_CHANGED BIT1 -#define FORMATING_MEDIA BIT2 -#define UNIT_RETRY BIT3 - -/*;---UnitFlags */ -#define DASD_SUPPORT BIT0 -#define SCSI_SUPPORT BIT1 -#define ASPI_SUPPORT BIT2 - -/*;----SRBState machine definition */ -#define SRB_FREE 0 -#define SRB_WAIT BIT0 -#define SRB_READY BIT1 -#define SRB_MSGOUT BIT2 /*;arbitration+msg_out 1st byte*/ -#define SRB_MSGIN BIT3 -#define SRB_MSGIN_MULTI BIT4 -#define SRB_COMMAND BIT5 -#define SRB_START_ BIT6 /*;arbitration+msg_out+command_out*/ -#define SRB_DISCONNECT BIT7 -#define SRB_DATA_XFER BIT8 -#define SRB_XFERPAD BIT9 -#define SRB_STATUS BIT10 -#define SRB_COMPLETED BIT11 -#define SRB_ABORT_SENT BIT12 -#define DO_SYNC_NEGO BIT13 -#define SRB_UNEXPECT_RESEL BIT14 - -/*;---SRBstatus */ -#define SRB_OK BIT0 -#define ABORTION BIT1 -#define OVER_RUN BIT2 -#define UNDER_RUN BIT3 -#define PARITY_ERROR BIT4 -#define SRB_ERROR BIT5 - -/*;---ACBFlag */ -#define RESET_DEV BIT0 -#define RESET_DETECT BIT1 -#define RESET_DONE BIT2 - -/*;---DCBFlag */ -#define ABORT_DEV_ BIT0 - -/*;---SRBFlag */ -#define DATAOUT BIT7 -#define DATAIN BIT6 -#define RESIDUAL_VALID BIT5 -#define ENABLE_TIMER BIT4 -#define RESET_DEV0 BIT2 -#define ABORT_DEV BIT1 -#define AUTO_REQSENSE BIT0 - -/*;---Adapter status */ -#define H_STATUS_GOOD 0 -#define H_SEL_TIMEOUT 0x11 -#define H_OVER_UNDER_RUN 0x12 -#define H_UNEXP_BUS_FREE 0x13 -#define H_TARGET_PHASE_F 0x14 -#define H_INVALID_CCB_OP 0x16 -#define H_LINK_CCB_BAD 0x17 -#define H_BAD_TARGET_DIR 0x18 -#define H_DUPLICATE_CCB 0x19 -#define H_BAD_CCB_OR_SG 0x1A -#define H_ABORT 0x0FF - -/* cmd->result */ -#define RES_TARGET 0x000000FF /* Target State */ -#define RES_TARGET_LNX STATUS_MASK /* Only official ... */ -#define RES_ENDMSG 0x0000FF00 /* End Message */ -#define RES_DID 0x00FF0000 /* DID_ codes */ -#define RES_DRV 0xFF000000 /* DRIVER_ codes */ - -#define MK_RES(drv,did,msg,tgt) ((int)(drv)<<24 | (int)(did)<<16 | (int)(msg)<<8 | (int)(tgt)) -#define MK_RES_LNX(drv,did,msg,tgt) ((int)(drv)<<24 | (int)(did)<<16 | (int)(msg)<<8 | (int)(tgt)) - -#define SET_RES_TARGET(who, tgt) do { who &= ~RES_TARGET; who |= (int)(tgt); } while (0) -#define SET_RES_TARGET_LNX(who, tgt) do { who &= ~RES_TARGET_LNX; who |= (int)(tgt) << 1; } while (0) -#define SET_RES_MSG(who, msg) do { who &= ~RES_ENDMSG; who |= (int)(msg) << 8; } while (0) -#define SET_RES_DID(who, did) do { who &= ~RES_DID; who |= (int)(did) << 16; } while (0) -#define SET_RES_DRV(who, drv) do { who &= ~RES_DRV; who |= (int)(drv) << 24; } while (0) - -/*;---Sync_Mode */ -#define SYNC_DISABLE 0 -#define SYNC_ENABLE BIT0 -#define SYNC_NEGO_DONE BIT1 -#define WIDE_ENABLE BIT2 /* Not used ;-) */ -#define WIDE_NEGO_DONE BIT3 /* Not used ;-) */ -#define EN_TAG_QUEUEING BIT4 -#define EN_ATN_STOP BIT5 - -#define SYNC_NEGO_OFFSET 15 - -/*;---SCSI bus phase*/ -#define SCSI_DATA_OUT 0 -#define SCSI_DATA_IN 1 -#define SCSI_COMMAND 2 -#define SCSI_STATUS_ 3 -#define SCSI_NOP0 4 -#define SCSI_NOP1 5 -#define SCSI_MSG_OUT 6 -#define SCSI_MSG_IN 7 - -/*;----SCSI MSG BYTE*/ /* see scsi/scsi.h */ /* One is missing ! */ -#define ABORT_TAG 0x0d - -/* - * SISC query queue - */ -typedef struct { - dma_addr_t saved_dma_handle; -} dc390_cmd_scp_t; - -/* -;========================================================== -; EEPROM byte offset -;========================================================== -*/ -typedef struct _EEprom -{ -u8 EE_MODE1; -u8 EE_SPEED; -u8 xx1; -u8 xx2; -} EEprom, *PEEprom; - -#define REAL_EE_ADAPT_SCSI_ID 64 -#define REAL_EE_MODE2 65 -#define REAL_EE_DELAY 66 -#define REAL_EE_TAG_CMD_NUM 67 - -#define EE_ADAPT_SCSI_ID 32 -#define EE_MODE2 33 -#define EE_DELAY 34 -#define EE_TAG_CMD_NUM 35 - -#define EE_LEN 40 - -/*; EE_MODE1 bits definition*/ -#define PARITY_CHK_ BIT0 -#define SYNC_NEGO_ BIT1 -#define EN_DISCONNECT_ BIT2 -#define SEND_START_ BIT3 -#define TAG_QUEUEING_ BIT4 - -/*; EE_MODE2 bits definition*/ -#define MORE2_DRV BIT0 -#define GREATER_1G BIT1 -#define RST_SCSI_BUS BIT2 -#define ACTIVE_NEGATION BIT3 -#define NO_SEEK BIT4 -#define LUN_CHECK BIT5 - -#define ENABLE_CE 1 -#define DISABLE_CE 0 -#define EEPROM_READ 0x80 - -/* -;========================================================== -; AMD 53C974 Registers bit Definition -;========================================================== -*/ -/* -;==================== -; SCSI Register -;==================== -*/ - -/*; Command Reg.(+0CH) (rw) */ -#define DMA_COMMAND BIT7 -#define NOP_CMD 0 -#define CLEAR_FIFO_CMD 1 -#define RST_DEVICE_CMD 2 -#define RST_SCSI_BUS_CMD 3 - -#define INFO_XFER_CMD 0x10 -#define INITIATOR_CMD_CMPLTE 0x11 -#define MSG_ACCEPTED_CMD 0x12 -#define XFER_PAD_BYTE 0x18 -#define SET_ATN_CMD 0x1A -#define RESET_ATN_CMD 0x1B - -#define SEL_WO_ATN 0x41 /* currently not used */ -#define SEL_W_ATN 0x42 -#define SEL_W_ATN_STOP 0x43 -#define SEL_W_ATN3 0x46 -#define EN_SEL_RESEL 0x44 -#define DIS_SEL_RESEL 0x45 /* currently not used */ -#define RESEL 0x40 /* " */ -#define RESEL_ATN3 0x47 /* " */ - -#define DATA_XFER_CMD INFO_XFER_CMD - - -/*; SCSI Status Reg.(+10H) (r) */ -#define INTERRUPT BIT7 -#define ILLEGAL_OP_ERR BIT6 -#define PARITY_ERR BIT5 -#define COUNT_2_ZERO BIT4 -#define GROUP_CODE_VALID BIT3 -#define SCSI_PHASE_MASK (BIT2+BIT1+BIT0) -/* BIT2: MSG phase; BIT1: C/D physe; BIT0: I/O phase */ - -/*; Interrupt Status Reg.(+14H) (r) */ -#define SCSI_RESET BIT7 -#define INVALID_CMD BIT6 -#define DISCONNECTED BIT5 -#define SERVICE_REQUEST BIT4 -#define SUCCESSFUL_OP BIT3 -#define RESELECTED BIT2 -#define SEL_ATTENTION BIT1 -#define SELECTED BIT0 - -/*; Internal State Reg.(+18H) (r) */ -#define SYNC_OFFSET_FLAG BIT3 -#define INTRN_STATE_MASK (BIT2+BIT1+BIT0) -/* 0x04: Sel. successful (w/o stop), 0x01: Sel. successful (w/ stop) */ - -/*; Clock Factor Reg.(+24H) (w) */ -#define CLK_FREQ_40MHZ 0 -#define CLK_FREQ_35MHZ (BIT2+BIT1+BIT0) -#define CLK_FREQ_30MHZ (BIT2+BIT1) -#define CLK_FREQ_25MHZ (BIT2+BIT0) -#define CLK_FREQ_20MHZ BIT2 -#define CLK_FREQ_15MHZ (BIT1+BIT0) -#define CLK_FREQ_10MHZ BIT1 - -/*; Control Reg. 1(+20H) (rw) */ -#define EXTENDED_TIMING BIT7 -#define DIS_INT_ON_SCSI_RST BIT6 -#define PARITY_ERR_REPO BIT4 -#define SCSI_ID_ON_BUS (BIT2+BIT1+BIT0) /* host adapter ID */ - -/*; Control Reg. 2(+2CH) (rw) */ -#define EN_FEATURE BIT6 -#define EN_SCSI2_CMD BIT3 - -/*; Control Reg. 3(+30H) (rw) */ -#define ID_MSG_CHECK BIT7 -#define EN_QTAG_MSG BIT6 -#define EN_GRP2_CMD BIT5 -#define FAST_SCSI BIT4 /* ;10MB/SEC */ -#define FAST_CLK BIT3 /* ;25 - 40 MHZ */ - -/*; Control Reg. 4(+34H) (rw) */ -#define EATER_12NS 0 -#define EATER_25NS BIT7 -#define EATER_35NS BIT6 -#define EATER_0NS (BIT7+BIT6) -#define REDUCED_POWER BIT5 -#define CTRL4_RESERVED BIT4 /* must be 1 acc. to AM53C974.c */ -#define NEGATE_REQACKDATA BIT2 -#define NEGATE_REQACK BIT3 - -#define GLITCH_TO_NS(x) (((~x>>6 & 2) >> 1) | ((x>>6 & 1) << 1 ^ (x>>6 & 2))) -#define NS_TO_GLITCH(y) (((~y<<7) | ~((y<<6) ^ ((y<<5 & 1<<6) | ~0x40))) & 0xc0) - -/* -;==================== -; DMA Register -;==================== -*/ -/*; DMA Command Reg.(+40H) (rw) */ -#define READ_DIRECTION BIT7 -#define WRITE_DIRECTION 0 -#define EN_DMA_INT BIT6 -#define EN_PAGE_INT BIT5 /* page transfer interrupt enable */ -#define MAP_TO_MDL BIT4 -#define DIAGNOSTIC BIT2 -#define DMA_IDLE_CMD 0 -#define DMA_BLAST_CMD BIT0 -#define DMA_ABORT_CMD BIT1 -#define DMA_START_CMD (BIT1+BIT0) - -/*; DMA Status Reg.(+54H) (r) */ -#define PCI_MS_ABORT BIT6 -#define BLAST_COMPLETE BIT5 -#define SCSI_INTERRUPT BIT4 -#define DMA_XFER_DONE BIT3 -#define DMA_XFER_ABORT BIT2 -#define DMA_XFER_ERROR BIT1 -#define POWER_DOWN BIT0 - -/*; DMA SCSI Bus and Ctrl.(+70H) */ -#define EN_INT_ON_PCI_ABORT BIT25 -#define WRT_ERASE_DMA_STAT BIT24 -#define PW_DOWN_CTRL BIT21 -#define SCSI_BUSY BIT20 -#define SCLK BIT19 -#define SCAM BIT18 -#define SCSI_LINES 0x0003ffff - -/* -;========================================================== -; SCSI Chip register address offset -;========================================================== -;Registers are rw unless declared otherwise -*/ -#define CtcReg_Low 0x00 /* r curr. transfer count */ -#define CtcReg_Mid 0x04 /* r */ -#define CtcReg_High 0x38 /* r */ -#define ScsiFifo 0x08 -#define ScsiCmd 0x0C -#define Scsi_Status 0x10 /* r */ -#define INT_Status 0x14 /* r */ -#define Sync_Period 0x18 /* w */ -#define Sync_Offset 0x1C /* w */ -#define Clk_Factor 0x24 /* w */ -#define CtrlReg1 0x20 -#define CtrlReg2 0x2C -#define CtrlReg3 0x30 -#define CtrlReg4 0x34 -#define DMA_Cmd 0x40 -#define DMA_XferCnt 0x44 /* rw starting transfer count (32 bit) */ -#define DMA_XferAddr 0x48 /* rw starting physical address (32 bit) */ -#define DMA_Wk_ByteCntr 0x4C /* r working byte counter */ -#define DMA_Wk_AddrCntr 0x50 /* r working address counter */ -#define DMA_Status 0x54 /* r */ -#define DMA_MDL_Addr 0x58 /* rw starting MDL address */ -#define DMA_Wk_MDL_Cntr 0x5C /* r working MDL counter */ -#define DMA_ScsiBusCtrl 0x70 /* rw SCSI Bus, PCI/DMA Ctrl */ - -#define StcReg_Low CtcReg_Low /* w start transfer count */ -#define StcReg_Mid CtcReg_Mid /* w */ -#define StcReg_High CtcReg_High /* w */ -#define Scsi_Dest_ID Scsi_Status /* w */ -#define Scsi_TimeOut INT_Status /* w */ -#define Intern_State Sync_Period /* r */ -#define Current_Fifo Sync_Offset /* r Curr. FIFO / int. state */ - - -#define DC390_read8(address) \ - (inb (pACB->IOPortBase + (address))) - -#define DC390_read8_(address, base) \ - (inb ((u16)(base) + (address))) - -#define DC390_read16(address) \ - (inw (pACB->IOPortBase + (address))) - -#define DC390_read32(address) \ - (inl (pACB->IOPortBase + (address))) - -#define DC390_write8(address,value) \ - outb ((value), pACB->IOPortBase + (address)) - -#define DC390_write8_(address,value,base) \ - outb ((value), (u16)(base) + (address)) - -#define DC390_write16(address,value) \ - outw ((value), pACB->IOPortBase + (address)) - -#define DC390_write32(address,value) \ - outl ((value), pACB->IOPortBase + (address)) - - -#endif /* _TMSCSIM_H */ -- cgit v1.2.3-59-g8ed1b