diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-01-25 17:19:08 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-01-25 17:19:08 -0800 |
commit | 9b73e76f3cf63379dcf45fcd4f112f5812418d0a (patch) | |
tree | 4e6bef87cd0cd6d848fc39a5ae25b981dbbe035b /drivers/scsi/libsas/sas_expander.c | |
parent | 50d9a126240f9961cfdd063336bbeb91f77a7dce (diff) | |
parent | 23c3e290fb9ce38cabc2822b47583fc8702411bf (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (200 commits)
[SCSI] usbstorage: use last_sector_bug flag universally
[SCSI] libsas: abstract STP task status into a function
[SCSI] ultrastor: clean up inline asm warnings
[SCSI] aic7xxx: fix firmware build
[SCSI] aacraid: fib context lock for management ioctls
[SCSI] ch: remove forward declarations
[SCSI] ch: fix device minor number management bug
[SCSI] ch: handle class_device_create failure properly
[SCSI] NCR5380: fix section mismatch
[SCSI] sg: fix /proc/scsi/sg/devices when no SCSI devices
[SCSI] IB/iSER: add logical unit reset support
[SCSI] don't use __GFP_DMA for sense buffers if not required
[SCSI] use dynamically allocated sense buffer
[SCSI] scsi.h: add macro for enclosure bit of inquiry data
[SCSI] sd: add fix for devices with last sector access problems
[SCSI] fix pcmcia compile problem
[SCSI] aacraid: add Voodoo Lite class of cards.
[SCSI] aacraid: add new driver features flags
[SCSI] qla2xxx: Update version number to 8.02.00-k7.
[SCSI] qla2xxx: Issue correct MBC_INITIALIZE_FIRMWARE command.
...
Diffstat (limited to 'drivers/scsi/libsas/sas_expander.c')
-rw-r--r-- | drivers/scsi/libsas/sas_expander.c | 35 |
1 files changed, 26 insertions, 9 deletions
diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c index 8727436b222d..aefd865a5788 100644 --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -96,7 +96,7 @@ static int smp_execute_task(struct domain_device *dev, void *req, int req_size, } wait_for_completion(&task->completion); - res = -ETASK; + res = -ECOMM; if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) { SAS_DPRINTK("smp task timed out or aborted\n"); i->dft->lldd_abort_task(task); @@ -109,6 +109,16 @@ static int smp_execute_task(struct domain_device *dev, void *req, int req_size, task->task_status.stat == SAM_GOOD) { res = 0; break; + } if (task->task_status.resp == SAS_TASK_COMPLETE && + task->task_status.stat == SAS_DATA_UNDERRUN) { + /* no error, but return the number of bytes of + * underrun */ + res = task->task_status.residual; + break; + } if (task->task_status.resp == SAS_TASK_COMPLETE && + task->task_status.stat == SAS_DATA_OVERRUN) { + res = -EMSGSIZE; + break; } else { SAS_DPRINTK("%s: task to dev %016llx response: 0x%x " "status 0x%x\n", __FUNCTION__, @@ -656,9 +666,9 @@ static struct domain_device *sas_ex_discover_end_dev( sas_ex_get_linkrate(parent, child, phy); #ifdef CONFIG_SCSI_SAS_ATA - if ((phy->attached_tproto & SAS_PROTO_STP) || phy->attached_sata_dev) { + if ((phy->attached_tproto & SAS_PROTOCOL_STP) || phy->attached_sata_dev) { child->dev_type = SATA_DEV; - if (phy->attached_tproto & SAS_PROTO_STP) + if (phy->attached_tproto & SAS_PROTOCOL_STP) child->tproto = phy->attached_tproto; if (phy->attached_sata_dev) child->tproto |= SATA_DEV; @@ -695,7 +705,7 @@ static struct domain_device *sas_ex_discover_end_dev( } } else #endif - if (phy->attached_tproto & SAS_PROTO_SSP) { + if (phy->attached_tproto & SAS_PROTOCOL_SSP) { child->dev_type = SAS_END_DEV; rphy = sas_end_device_alloc(phy->port); /* FIXME: error handling */ @@ -1896,11 +1906,9 @@ int sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, } /* no rphy means no smp target support (ie aic94xx host) */ - if (!rphy) { - printk("%s: can we send a smp request to a host?\n", - __FUNCTION__); - return -EINVAL; - } + if (!rphy) + return sas_smp_host_handler(shost, req, rsp); + type = rphy->identify.device_type; if (type != SAS_EDGE_EXPANDER_DEVICE && @@ -1926,6 +1934,15 @@ int sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, ret = smp_execute_task(dev, bio_data(req->bio), req->data_len, bio_data(rsp->bio), rsp->data_len); + if (ret > 0) { + /* positive number is the untransferred residual */ + rsp->data_len = ret; + req->data_len = 0; + ret = 0; + } else if (ret == 0) { + rsp->data_len = 0; + req->data_len = 0; + } return ret; } |