openwrt/target/linux/oxnas/patches-5.4/999-libata-hacks.patch
Hauke Mehrtens b4ed8a9275 kernel: bump 5.4 to 5.4.154
Removed upstreamed:
  generic/backport-5.4/070-v5.5-MIPS-BPF-Restore-MIPS32-cBPF-JIT.patch

All others updated automatically.

Compile-tested on: lantiq/xrx200, armvirt/64
Runtime-tested on: lantiq/xrx200, armvirt/64

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2021-10-20 00:37:51 +02:00

58 lines
1.7 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);
@@ -5156,6 +5164,9 @@ 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);
@@ -5201,6 +5212,8 @@ 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
@@ -911,6 +911,8 @@ struct ata_port_operations {
enum ata_completion_errors (*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
@@ -1001,6 +1003,9 @@ 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.