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-rw-r--r--drivers/scsi/libsas/sas_init.c2
-rw-r--r--drivers/scsi/libsas/sas_scsi_host.c29
-rw-r--r--include/scsi/libsas.h9
3 files changed, 33 insertions, 7 deletions
diff --git a/drivers/scsi/libsas/sas_init.c b/drivers/scsi/libsas/sas_init.c
index c836a237fb7..a2b479a6590 100644
--- a/drivers/scsi/libsas/sas_init.c
+++ b/drivers/scsi/libsas/sas_init.c
@@ -112,6 +112,8 @@ int sas_register_ha(struct sas_ha_struct *sas_ha)
}
}
+ INIT_LIST_HEAD(&sas_ha->eh_done_q);
+
return 0;
Undo_ports:
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index e46e79355b7..6a97b07849b 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -29,6 +29,7 @@
#include <scsi/scsi_device.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsi.h>
+#include <scsi/scsi_eh.h>
#include <scsi/scsi_transport.h>
#include <scsi/scsi_transport_sas.h>
#include "../scsi_sas_internal.h"
@@ -46,6 +47,7 @@ static void sas_scsi_task_done(struct sas_task *task)
{
struct task_status_struct *ts = &task->task_status;
struct scsi_cmnd *sc = task->uldd_task;
+ struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(sc->device->host);
unsigned ts_flags = task->task_state_flags;
int hs = 0, stat = 0;
@@ -116,7 +118,7 @@ static void sas_scsi_task_done(struct sas_task *task)
sas_free_task(task);
/* This is very ugly but this is how SCSI Core works. */
if (ts_flags & SAS_TASK_STATE_ABORTED)
- scsi_finish_command(sc);
+ scsi_eh_finish_cmd(sc, &sas_ha->eh_done_q);
else
sc->scsi_done(sc);
}
@@ -307,6 +309,15 @@ static enum task_disposition sas_scsi_find_task(struct sas_task *task)
spin_unlock_irqrestore(&core->task_queue_lock, flags);
}
+ spin_lock_irqsave(&task->task_state_lock, flags);
+ if (task->task_state_flags & SAS_TASK_INITIATOR_ABORTED) {
+ spin_unlock_irqrestore(&task->task_state_lock, flags);
+ SAS_DPRINTK("%s: task 0x%p already aborted\n",
+ __FUNCTION__, task);
+ return TASK_IS_ABORTED;
+ }
+ spin_unlock_irqrestore(&task->task_state_lock, flags);
+
for (i = 0; i < 5; i++) {
SAS_DPRINTK("%s: aborting task 0x%p\n", __FUNCTION__, task);
res = si->dft->lldd_abort_task(task);
@@ -409,13 +420,16 @@ Again:
SAS_DPRINTK("going over list...\n");
list_for_each_entry_safe(cmd, n, &error_q, eh_entry) {
struct sas_task *task = TO_SAS_TASK(cmd);
+ list_del_init(&cmd->eh_entry);
+ if (!task) {
+ SAS_DPRINTK("%s: taskless cmd?!\n", __FUNCTION__);
+ continue;
+ }
SAS_DPRINTK("trying to find task 0x%p\n", task);
- list_del_init(&cmd->eh_entry);
res = sas_scsi_find_task(task);
cmd->eh_eflags = 0;
- shost->host_failed--;
switch (res) {
case TASK_IS_DONE:
@@ -491,6 +505,7 @@ Again:
}
}
out:
+ scsi_eh_flush_done_q(&ha->eh_done_q);
SAS_DPRINTK("--- Exit %s\n", __FUNCTION__);
return;
clear_q:
@@ -508,12 +523,18 @@ enum scsi_eh_timer_return sas_scsi_timed_out(struct scsi_cmnd *cmd)
unsigned long flags;
if (!task) {
- SAS_DPRINTK("command 0x%p, task 0x%p, timed out: EH_HANDLED\n",
+ SAS_DPRINTK("command 0x%p, task 0x%p, gone: EH_HANDLED\n",
cmd, task);
return EH_HANDLED;
}
spin_lock_irqsave(&task->task_state_lock, flags);
+ if (task->task_state_flags & SAS_TASK_INITIATOR_ABORTED) {
+ spin_unlock_irqrestore(&task->task_state_lock, flags);
+ SAS_DPRINTK("command 0x%p, task 0x%p, aborted by initiator: "
+ "EH_NOT_HANDLED\n", cmd, task);
+ return EH_NOT_HANDLED;
+ }
if (task->task_state_flags & SAS_TASK_STATE_DONE) {
spin_unlock_irqrestore(&task->task_state_lock, flags);
SAS_DPRINTK("command 0x%p, task 0x%p, timed out: EH_HANDLED\n",
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index 9582e840166..7bf2e8b9903 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -338,6 +338,8 @@ struct sas_ha_struct {
void (*notify_phy_event)(struct asd_sas_phy *, enum phy_event);
void *lldd_ha; /* not touched by sas class code */
+
+ struct list_head eh_done_q;
};
#define SHOST_TO_SAS_HA(_shost) (*(struct sas_ha_struct **)(_shost)->hostdata)
@@ -530,9 +532,10 @@ struct sas_task {
-#define SAS_TASK_STATE_PENDING 1
-#define SAS_TASK_STATE_DONE 2
-#define SAS_TASK_STATE_ABORTED 4
+#define SAS_TASK_STATE_PENDING 1
+#define SAS_TASK_STATE_DONE 2
+#define SAS_TASK_STATE_ABORTED 4
+#define SAS_TASK_INITIATOR_ABORTED 8
static inline struct sas_task *sas_alloc_task(gfp_t flags)
{