diff options
Diffstat (limited to 'drivers/scsi/aic94xx')
| -rw-r--r-- | drivers/scsi/aic94xx/aic94xx_scb.c | 51 |
1 files changed, 44 insertions, 7 deletions
diff --git a/drivers/scsi/aic94xx/aic94xx_scb.c b/drivers/scsi/aic94xx/aic94xx_scb.c index 1911c5d1787..a014418d670 100644 --- a/drivers/scsi/aic94xx/aic94xx_scb.c +++ b/drivers/scsi/aic94xx/aic94xx_scb.c @@ -343,6 +343,27 @@ void asd_invalidate_edb(struct asd_ascb *ascb, int edb_id) } } +/* hard reset a phy later */ +static void do_phy_reset_later(void *data) +{ + struct sas_phy *sas_phy = data; + int error; + + ASD_DPRINTK("%s: About to hard reset phy %d\n", __FUNCTION__, + sas_phy->identify.phy_identifier); + /* Reset device port */ + error = sas_phy_reset(sas_phy, 1); + if (error) + ASD_DPRINTK("%s: Hard reset of phy %d failed (%d).\n", + __FUNCTION__, sas_phy->identify.phy_identifier, error); +} + +static void phy_reset_later(struct sas_phy *sas_phy, struct Scsi_Host *shost) +{ + INIT_WORK(&sas_phy->reset_work, do_phy_reset_later, sas_phy); + queue_work(shost->work_q, &sas_phy->reset_work); +} + /* start up the ABORT TASK tmf... */ static void task_kill_later(struct asd_ascb *ascb) { @@ -402,7 +423,9 @@ static void escb_tasklet_complete(struct asd_ascb *ascb, goto out; } case REQ_DEVICE_RESET: { - struct asd_ascb *a, *b; + struct Scsi_Host *shost = sas_ha->core.shost; + struct sas_phy *dev_phy; + struct asd_ascb *a; u16 conn_handle; conn_handle = *((u16*)(&dl->status_block[1])); @@ -412,17 +435,31 @@ static void escb_tasklet_complete(struct asd_ascb *ascb, dl->status_block[3]); /* Kill all pending tasks and reset the device */ - list_for_each_entry_safe(a, b, &asd_ha->seq.pend_q, list) { - struct sas_task *task = a->uldd_task; - struct domain_device *dev = task->dev; + dev_phy = NULL; + list_for_each_entry(a, &asd_ha->seq.pend_q, list) { + struct sas_task *task; + struct domain_device *dev; u16 x; - x = *((u16*)(&dev->lldd_dev)); - if (x == conn_handle) + task = a->uldd_task; + if (!task) + continue; + dev = task->dev; + + x = (u16)dev->lldd_dev; + if (x == conn_handle) { + dev_phy = dev->port->phy; task_kill_later(a); + } } - /* FIXME: Reset device port (huh?) */ + /* Reset device port */ + if (!dev_phy) { + ASD_DPRINTK("%s: No pending commands; can't reset.\n", + __FUNCTION__); + goto out; + } + phy_reset_later(dev_phy, shost); goto out; } case SIGNAL_NCQ_ERROR: |