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[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>
This commit is contained in:
Darrick J. Wong 2006-10-30 15:18:56 -08:00 committed by James Bottomley
parent 79a5eb609b
commit fe4a36cf65
1 changed files with 66 additions and 17 deletions
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83
drivers/scsi/aic94xx/aic94xx_scb.c
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@ -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);
}