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| author | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-01-18 19:47:01 +0300 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-01-25 20:47:23 +0300 |
| commit | 366ca51f30de1cbb5b356c70b7bb22051c558e41 (patch) | |
| tree | c28a9d3b64a5b3e3c8bd29c57003ee524e9e1e63 /drivers/scsi/libsas/sas_task.c | |
| parent | 1292500b159c00a8fece072b004f154e6fda9f48 (diff) | |
| download | linux-366ca51f30de1cbb5b356c70b7bb22051c558e41.tar.xz | |
[SCSI] libsas: abstract STP task status into a function
Break out the frame processor for STP tasks from aic94xx so they can
be shared by other SAS HBA's
Original patch from Jeff Garzik <jeff@garzik.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/libsas/sas_task.c')
| -rw-r--r-- | drivers/scsi/libsas/sas_task.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/scsi/libsas/sas_task.c b/drivers/scsi/libsas/sas_task.c new file mode 100644 index 000000000000..594524d5bfa1 --- /dev/null +++ b/drivers/scsi/libsas/sas_task.c @@ -0,0 +1,36 @@ +#include <linux/kernel.h> +#include <scsi/sas.h> +#include <scsi/libsas.h> + +/* fill task_status_struct based on SSP response frame */ +void sas_ssp_task_response(struct device *dev, struct sas_task *task, + struct ssp_response_iu *iu) +{ + struct task_status_struct *tstat = &task->task_status; + + tstat->resp = SAS_TASK_COMPLETE; + + if (iu->datapres == 0) + tstat->stat = iu->status; + else if (iu->datapres == 1) + tstat->stat = iu->resp_data[3]; + else if (iu->datapres == 2) { + tstat->stat = SAM_CHECK_COND; + tstat->buf_valid_size = + min_t(int, SAS_STATUS_BUF_SIZE, + be32_to_cpu(iu->sense_data_len)); + memcpy(tstat->buf, iu->sense_data, tstat->buf_valid_size); + + if (iu->status != SAM_CHECK_COND) + dev_printk(KERN_WARNING, dev, + "dev %llx sent sense data, but " + "stat(%x) is not CHECK CONDITION\n", + SAS_ADDR(task->dev->sas_addr), + iu->status); + } + else + /* when datapres contains corrupt/unknown value... */ + tstat->stat = SAM_CHECK_COND; +} +EXPORT_SYMBOL_GPL(sas_ssp_task_response); + |