diff options
author | Darrick J. Wong <djwong@us.ibm.com> | 2006-10-30 15:18:56 -0800 |
---|---|---|
committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-11-15 12:31:27 -0600 |
commit | fe4a36cf652031d2744a536ba5121032840380cb (patch) | |
tree | 42ee998e9d8b543b74f6f2c935023b604183c85f /drivers/scsi/aic94xx/aic94xx_scb.c | |
parent | 79a5eb609b74e7b3638861c41b98eafa74920a1f (diff) | |
download | op-kernel-dev-fe4a36cf652031d2744a536ba5121032840380cb.zip op-kernel-dev-fe4a36cf652031d2744a536ba5121032840380cb.tar.gz |
[SCSI] aic94xx: handle REQ_TASK_ABORT
This patch straightens out the code that distinguishes the various escb
opcodes in escb_tasklet_complete so that they can be handled correctly.
It also provides all the necessary code to create a workqueue item that
tells libsas to abort a sas_task.
Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/aic94xx/aic94xx_scb.c')
-rw-r--r-- | drivers/scsi/aic94xx/aic94xx_scb.c | 83 |
1 files changed, 66 insertions, 17 deletions
diff --git a/drivers/scsi/aic94xx/aic94xx_scb.c b/drivers/scsi/aic94xx/aic94xx_scb.c index 7ee49b5..1911c5d 100644 --- a/drivers/scsi/aic94xx/aic94xx_scb.c +++ b/drivers/scsi/aic94xx/aic94xx_scb.c @@ -25,6 +25,7 @@ */ #include <linux/pci.h> +#include <scsi/scsi_host.h> #include "aic94xx.h" #include "aic94xx_reg.h" @@ -342,6 +343,18 @@ void asd_invalidate_edb(struct asd_ascb *ascb, int edb_id) } } +/* start up the ABORT TASK tmf... */ +static void task_kill_later(struct asd_ascb *ascb) +{ + struct asd_ha_struct *asd_ha = ascb->ha; + struct sas_ha_struct *sas_ha = &asd_ha->sas_ha; + struct Scsi_Host *shost = sas_ha->core.shost; + struct sas_task *task = ascb->uldd_task; + + INIT_WORK(&task->abort_work, (void (*)(void *))sas_task_abort, task); + queue_work(shost->work_q, &task->abort_work); +} + static void escb_tasklet_complete(struct asd_ascb *ascb, struct done_list_struct *dl) { @@ -368,6 +381,58 @@ static void escb_tasklet_complete(struct asd_ascb *ascb, ascb->scb->header.opcode); } + /* Catch these before we mask off the sb_opcode bits */ + switch (sb_opcode) { + case REQ_TASK_ABORT: { + struct asd_ascb *a, *b; + u16 tc_abort; + + tc_abort = *((u16*)(&dl->status_block[1])); + tc_abort = le16_to_cpu(tc_abort); + + ASD_DPRINTK("%s: REQ_TASK_ABORT, reason=0x%X\n", + __FUNCTION__, dl->status_block[3]); + + /* Find the pending task and abort it. */ + list_for_each_entry_safe(a, b, &asd_ha->seq.pend_q, list) + if (a->tc_index == tc_abort) { + task_kill_later(a); + break; + } + goto out; + } + case REQ_DEVICE_RESET: { + struct asd_ascb *a, *b; + u16 conn_handle; + + conn_handle = *((u16*)(&dl->status_block[1])); + conn_handle = le16_to_cpu(conn_handle); + + ASD_DPRINTK("%s: REQ_DEVICE_RESET, reason=0x%X\n", __FUNCTION__, + 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; + u16 x; + + x = *((u16*)(&dev->lldd_dev)); + if (x == conn_handle) + task_kill_later(a); + } + + /* FIXME: Reset device port (huh?) */ + goto out; + } + case SIGNAL_NCQ_ERROR: + ASD_DPRINTK("%s: SIGNAL_NCQ_ERROR\n", __FUNCTION__); + goto out; + case CLEAR_NCQ_ERROR: + ASD_DPRINTK("%s: CLEAR_NCQ_ERROR\n", __FUNCTION__); + goto out; + } + sb_opcode &= ~DL_PHY_MASK; switch (sb_opcode) { @@ -397,22 +462,6 @@ static void escb_tasklet_complete(struct asd_ascb *ascb, sas_phy_disconnected(sas_phy); sas_ha->notify_port_event(sas_phy, PORTE_TIMER_EVENT); break; - case REQ_TASK_ABORT: - ASD_DPRINTK("%s: phy%d: REQ_TASK_ABORT\n", __FUNCTION__, - phy_id); - break; - case REQ_DEVICE_RESET: - ASD_DPRINTK("%s: phy%d: REQ_DEVICE_RESET\n", __FUNCTION__, - phy_id); - break; - case SIGNAL_NCQ_ERROR: - ASD_DPRINTK("%s: phy%d: SIGNAL_NCQ_ERROR\n", __FUNCTION__, - phy_id); - break; - case CLEAR_NCQ_ERROR: - ASD_DPRINTK("%s: phy%d: CLEAR_NCQ_ERROR\n", __FUNCTION__, - phy_id); - break; default: ASD_DPRINTK("%s: phy%d: unknown event:0x%x\n", __FUNCTION__, phy_id, sb_opcode); @@ -432,7 +481,7 @@ static void escb_tasklet_complete(struct asd_ascb *ascb, break; } - +out: asd_invalidate_edb(ascb, edb); } |