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libata: convert eh to command iterators 

Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Jens Axboe 2018-06-19 10:12:49 -06:00 committed by Tejun Heo
parent 6362f0a290
commit 258c4e5c65
1 changed files with 16 additions and 25 deletions
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41
drivers/ata/libata-eh.c
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@ -614,8 +614,7 @@ void ata_scsi_cmd_error_handler(struct Scsi_Host *host, struct ata_port *ap,
list_for_each_entry_safe(scmd, tmp, eh_work_q, eh_entry) {
struct ata_queued_cmd *qc;
for (i = 0; i < ATA_MAX_QUEUE; i++) {
qc = __ata_qc_from_tag(ap, i);
ata_qc_for_each_raw(ap, qc, i) {
if (qc->flags & ATA_QCFLAG_ACTIVE &&
qc->scsicmd == scmd)
break;
@ -818,14 +817,13 @@ EXPORT_SYMBOL_GPL(ata_port_wait_eh);
static int ata_eh_nr_in_flight(struct ata_port *ap)
{
struct ata_queued_cmd *qc;
unsigned int tag;
int nr = 0;
/* count only non-internal commands */
for (tag = 0; tag < ATA_MAX_QUEUE; tag++) {
if (ata_tag_internal(tag))
continue;
if (ata_qc_from_tag(ap, tag))
ata_qc_for_each(ap, qc, tag) {
if (qc)
nr++;
}
@ -847,13 +845,13 @@ void ata_eh_fastdrain_timerfn(struct timer_list *t)
goto out_unlock;
if (cnt == ap->fastdrain_cnt) {
struct ata_queued_cmd *qc;
unsigned int tag;
/* No progress during the last interval, tag all
* in-flight qcs as timed out and freeze the port.
*/
for (tag = 0; tag < ATA_MAX_QUEUE; tag++) {
struct ata_queued_cmd *qc = ata_qc_from_tag(ap, tag);
ata_qc_for_each(ap, qc, tag) {
if (qc)
qc->err_mask |= AC_ERR_TIMEOUT;
}
@ -999,6 +997,7 @@ void ata_port_schedule_eh(struct ata_port *ap)
static int ata_do_link_abort(struct ata_port *ap, struct ata_link *link)
{
struct ata_queued_cmd *qc;
int tag, nr_aborted = 0;
WARN_ON(!ap->ops->error_handler);
@ -1007,9 +1006,7 @@ static int ata_do_link_abort(struct ata_port *ap, struct ata_link *link)
ata_eh_set_pending(ap, 0);
/* include internal tag in iteration */
for (tag = 0; tag <= ATA_MAX_QUEUE; tag++) {
struct ata_queued_cmd *qc = ata_qc_from_tag(ap, tag);
ata_qc_for_each_with_internal(ap, qc, tag) {
if (qc && (!link || qc->dev->link == link)) {
qc->flags |= ATA_QCFLAG_FAILED;
ata_qc_complete(qc);
@ -1712,9 +1709,7 @@ void ata_eh_analyze_ncq_error(struct ata_link *link)
return;
/* has LLDD analyzed already? */
for (tag = 0; tag < ATA_MAX_QUEUE; tag++) {
qc = __ata_qc_from_tag(ap, tag);
ata_qc_for_each_raw(ap, qc, tag) {
if (!(qc->flags & ATA_QCFLAG_FAILED))
continue;
@ -2136,6 +2131,7 @@ static void ata_eh_link_autopsy(struct ata_link *link)
{
struct ata_port *ap = link->ap;
struct ata_eh_context *ehc = &link->eh_context;
struct ata_queued_cmd *qc;
struct ata_device *dev;
unsigned int all_err_mask = 0, eflags = 0;
int tag, nr_failed = 0, nr_quiet = 0;
@ -2168,9 +2164,7 @@ static void ata_eh_link_autopsy(struct ata_link *link)
all_err_mask |= ehc->i.err_mask;
for (tag = 0; tag < ATA_MAX_QUEUE; tag++) {
struct ata_queued_cmd *qc = __ata_qc_from_tag(ap, tag);
ata_qc_for_each_raw(ap, qc, tag) {
if (!(qc->flags & ATA_QCFLAG_FAILED) ||
ata_dev_phys_link(qc->dev) != link)
continue;
@ -2436,6 +2430,7 @@ static void ata_eh_link_report(struct ata_link *link)
{
struct ata_port *ap = link->ap;
struct ata_eh_context *ehc = &link->eh_context;
struct ata_queued_cmd *qc;
const char *frozen, *desc;
char tries_buf[6] = "";
int tag, nr_failed = 0;
@ -2447,9 +2442,7 @@ static void ata_eh_link_report(struct ata_link *link)
if (ehc->i.desc[0] != '\0')
desc = ehc->i.desc;
for (tag = 0; tag < ATA_MAX_QUEUE; tag++) {
struct ata_queued_cmd *qc = __ata_qc_from_tag(ap, tag);
ata_qc_for_each_raw(ap, qc, tag) {
if (!(qc->flags & ATA_QCFLAG_FAILED) ||
ata_dev_phys_link(qc->dev) != link ||
((qc->flags & ATA_QCFLAG_QUIET) &&
@ -2511,8 +2504,7 @@ static void ata_eh_link_report(struct ata_link *link)
ehc->i.serror & SERR_DEV_XCHG ? "DevExch " : "");
#endif
for (tag = 0; tag < ATA_MAX_QUEUE; tag++) {
struct ata_queued_cmd *qc = __ata_qc_from_tag(ap, tag);
ata_qc_for_each_raw(ap, qc, tag) {
struct ata_taskfile *cmd = &qc->tf, *res = &qc->result_tf;
char data_buf[20] = "";
char cdb_buf[70] = "";
@ -3992,12 +3984,11 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
*/
void ata_eh_finish(struct ata_port *ap)
{
struct ata_queued_cmd *qc;
int tag;
/* retry or finish qcs */
for (tag = 0; tag < ATA_MAX_QUEUE; tag++) {
struct ata_queued_cmd *qc = __ata_qc_from_tag(ap, tag);
ata_qc_for_each_raw(ap, qc, tag) {
if (!(qc->flags & ATA_QCFLAG_FAILED))
continue;