68d9cb8214
Run tested: ath79, ipq40xx Build tested: ath79, ipq40xx Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
58 lines
1.6 KiB
Diff
58 lines
1.6 KiB
Diff
--- a/drivers/ata/libata-core.c
|
|
+++ b/drivers/ata/libata-core.c
|
|
@@ -1583,6 +1583,14 @@ unsigned ata_exec_internal_sg(struct ata
|
|
return AC_ERR_SYSTEM;
|
|
}
|
|
|
|
+ if (ap->ops->acquire_hw && !ap->ops->acquire_hw(ap, 0, 0)) {
|
|
+ spin_unlock_irqrestore(ap->lock, flags);
|
|
+ if (!ap->ops->acquire_hw(ap, 1, (2*HZ))) {
|
|
+ return AC_ERR_TIMEOUT;
|
|
+ }
|
|
+ spin_lock_irqsave(ap->lock, flags);
|
|
+ }
|
|
+
|
|
/* initialize internal qc */
|
|
qc = __ata_qc_from_tag(ap, ATA_TAG_INTERNAL);
|
|
|
|
@@ -5122,6 +5130,9 @@ struct ata_queued_cmd *ata_qc_new_init(s
|
|
if (unlikely(ap->pflags & ATA_PFLAG_FROZEN))
|
|
return NULL;
|
|
|
|
+ if (ap->ops->qc_new && ap->ops->qc_new(ap))
|
|
+ return NULL;
|
|
+
|
|
/* libsas case */
|
|
if (ap->flags & ATA_FLAG_SAS_HOST) {
|
|
tag = ata_sas_allocate_tag(ap);
|
|
@@ -5167,6 +5178,8 @@ void ata_qc_free(struct ata_queued_cmd *
|
|
qc->tag = ATA_TAG_POISON;
|
|
if (ap->flags & ATA_FLAG_SAS_HOST)
|
|
ata_sas_free_tag(tag, ap);
|
|
+ if (ap->ops->qc_free)
|
|
+ ap->ops->qc_free(qc);
|
|
}
|
|
}
|
|
|
|
--- a/include/linux/libata.h
|
|
+++ b/include/linux/libata.h
|
|
@@ -908,6 +908,8 @@ struct ata_port_operations {
|
|
void (*qc_prep)(struct ata_queued_cmd *qc);
|
|
unsigned int (*qc_issue)(struct ata_queued_cmd *qc);
|
|
bool (*qc_fill_rtf)(struct ata_queued_cmd *qc);
|
|
+ int (*qc_new)(struct ata_port *ap);
|
|
+ void (*qc_free)(struct ata_queued_cmd *qc);
|
|
|
|
/*
|
|
* Configuration and exception handling
|
|
@@ -998,6 +1000,9 @@ struct ata_port_operations {
|
|
void (*phy_reset)(struct ata_port *ap);
|
|
void (*eng_timeout)(struct ata_port *ap);
|
|
|
|
+ int (*acquire_hw)(struct ata_port *ap, int may_sleep,
|
|
+ int timeout_jiffies);
|
|
+
|
|
/*
|
|
* ->inherits must be the last field and all the preceding
|
|
* fields must be pointers.
|