[PATCH RFC v2 16/24] snic: use tagset iter for traversing commands

John Garry
2020-03-10T16:32:22Z

From: Hannes Reinecke <hare@suse.com>

Use the tagset iter to traverse active commands during device and
hba reset.

Signed-off-by: Hannes Reinecke <hare@suse.com>
---
drivers/scsi/snic/snic_scsi.c | 406 ++++++++++++++++------------------
1 file changed, 194 insertions(+), 212 deletions(-)

diff --git a/drivers/scsi/snic/snic_scsi.c b/drivers/scsi/snic/snic_scsi.c
index c4aaad945d51..f969d1654526 100644
--- a/drivers/scsi/snic/snic_scsi.c
+++ b/drivers/scsi/snic/snic_scsi.c
@@ -77,7 +77,7 @@ static const char * const snic_io_status_str[] = {
[SNIC_STAT_FATAL_ERROR] = "SNIC_STAT_FATAL_ERROR",
};

-static void snic_scsi_cleanup(struct snic *, int);
+static void snic_scsi_cleanup(struct snic *);

const char *
snic_state_to_str(unsigned int state)
@@ -974,13 +974,13 @@ snic_itmf_cmpl_handler(struct snic *snic, struct snic_fw_req *fwreq)

static void
-snic_hba_reset_scsi_cleanup(struct snic *snic, struct scsi_cmnd *sc)
+snic_hba_reset_scsi_cleanup(struct snic *snic)
{
struct snic_stats *st = &snic->s_stats;
long act_ios = 0, act_fwreqs = 0;

SNIC_SCSI_DBG(snic->shost, "HBA Reset scsi cleanup.\n");
- snic_scsi_cleanup(snic, snic_cmd_tag(sc));
+ snic_scsi_cleanup(snic);

/* Update stats on pending IOs */
act_ios = atomic64_read(&st->io.active);
@@ -1021,17 +1021,6 @@ snic_hba_reset_cmpl_handler(struct snic *snic, struct snic_fw_req *fwreq)
"reset_cmpl: type = %x, hdr_stat = %x, cmnd_id = %x, hid = %x, ctx = %lx\n",
typ, hdr_stat, cmnd_id, hid, ctx);

- /* spl case, host reset issued through ioctl */
- if (cmnd_id == SCSI_NO_TAG) {
- rqi = (struct snic_req_info *) ctx;
- SNIC_HOST_INFO(snic->shost,
- "reset_cmpl:Tag %d ctx %lx cmpl stat %s\n",
- cmnd_id, ctx, snic_io_status_to_str(hdr_stat));
- sc = rqi->sc;
-
- goto ioctl_hba_rst;
- }
-
if (cmnd_id >= snic->max_tag_id) {
SNIC_HOST_ERR(snic->shost,
"reset_cmpl: Tag 0x%x out of Range,HdrStat %s\n",
@@ -1042,7 +1031,6 @@ snic_hba_reset_cmpl_handler(struct snic *snic, struct snic_fw_req *fwreq)
}

sc = scsi_host_find_tag(snic->shost, cmnd_id);
-ioctl_hba_rst:
if (!sc) {
atomic64_inc(&snic->s_stats.io.sc_null);
SNIC_HOST_ERR(snic->shost,
@@ -1089,7 +1077,7 @@ snic_hba_reset_cmpl_handler(struct snic *snic, struct snic_fw_req *fwreq)
spin_unlock_irqrestore(io_lock, flags);

/* scsi cleanup */
- snic_hba_reset_scsi_cleanup(snic, sc);
+ snic_hba_reset_scsi_cleanup(snic);

SNIC_BUG_ON(snic_get_state(snic) != SNIC_OFFLINE &&
snic_get_state(snic) != SNIC_FWRESET);
@@ -1359,7 +1347,7 @@ snic_issue_tm_req(struct snic *snic,
int tmf)
{
struct snic_host_req *tmreq = NULL;
- int req_id = 0, tag = snic_cmd_tag(sc);
+ int tag = snic_cmd_tag(sc);
int ret = 0;

if (snic_get_state(snic) == SNIC_FWRESET)
@@ -1372,13 +1360,10 @@ snic_issue_tm_req(struct snic *snic,
tmf, rqi, tag);

- if (tmf == SNIC_ITMF_LUN_RESET) {
+ if (tmf == SNIC_ITMF_LUN_RESET)
tmreq = snic_dr_req_init(snic, rqi);
- req_id = SCSI_NO_TAG;
- } else {
+ else
tmreq = snic_abort_req_init(snic, rqi);
- req_id = tag;
- }

if (!tmreq) {
ret = -ENOMEM;
@@ -1386,7 +1371,7 @@ snic_issue_tm_req(struct snic *snic,
goto tmreq_err;
}

- ret = snic_queue_itmf_req(snic, tmreq, sc, tmf, req_id);
+ ret = snic_queue_itmf_req(snic, tmreq, sc, tmf, tag);
if (ret)
goto tmreq_err;

@@ -1395,12 +1380,12 @@ snic_issue_tm_req(struct snic *snic,
tmreq_err:
if (ret) {
SNIC_HOST_ERR(snic->shost,
- "issu_tmreq: Queing ITMF(%d) Req, sc %p rqi %p req_id %d tag %x fails err = %d\n",
- tmf, sc, rqi, req_id, tag, ret);
+ "issu_tmreq: Queing ITMF(%d) Req, sc %p rqi %p tag %x fails err = %d\n",
+ tmf, sc, rqi, tag, ret);
} else {
SNIC_SCSI_DBG(snic->shost,
- "issu_tmreq: Queuing ITMF(%d) Req, sc %p, rqi %p, req_id %d tag %x - Success.\n",
- tmf, sc, rqi, req_id, tag);
+ "issu_tmreq: Queuing ITMF(%d) Req, sc %p, rqi %p, tag %x - Success.\n",
+ tmf, sc, rqi, tag);
}

atomic_dec(&snic->ios_inflight);
@@ -1671,84 +1656,87 @@ snic_abort_cmd(struct scsi_cmnd *sc)
return ret;
}

+struct snic_cmd_pending_iter_data {
+ struct snic *snic;
+ struct scsi_device *sdev;
+ int ret;
+};

-
-static int
-snic_is_abts_pending(struct snic *snic, struct scsi_cmnd *lr_sc)
+static bool
+snic_is_abts_pending_iter(struct scsi_cmnd *sc, void *data, bool reserved)
{
+ struct snic_cmd_pending_iter_data *iter_data = data;
struct snic_req_info *rqi = NULL;
- struct scsi_cmnd *sc = NULL;
- struct scsi_device *lr_sdev = NULL;
spinlock_t *io_lock = NULL;
- u32 tag;
unsigned long flags;

- if (lr_sc)
- lr_sdev = lr_sc->device;
-
- /* walk through the tag map, an dcheck if IOs are still pending in fw*/
- for (tag = 0; tag < snic->max_tag_id; tag++) {
- io_lock = snic_io_lock_tag(snic, tag);
-
- spin_lock_irqsave(io_lock, flags);
- sc = scsi_host_find_tag(snic->shost, tag);
+ if (reserved)
+ return true;

- if (!sc || (lr_sc && (sc->device != lr_sdev || sc == lr_sc))) {
- spin_unlock_irqrestore(io_lock, flags);
+ if (iter_data->sdev && iter_data->sdev != sc->device)
+ return true;

- continue;
- }
+ io_lock = snic_io_lock_tag(iter_data->snic, sc->request->tag);
+ spin_lock_irqsave(io_lock, flags);

- rqi = (struct snic_req_info *) CMD_SP(sc);
- if (!rqi) {
- spin_unlock_irqrestore(io_lock, flags);
+ rqi = (struct snic_req_info *) CMD_SP(sc);
+ if (!rqi) {
+ spin_unlock_irqrestore(io_lock, flags);
+ return true;
+ }

- continue;
- }
+ /*
+ * Found IO that is still pending w/ firmware and belongs to
+ * the LUN that is under reset, if lr_sc != NULL
+ */
+ SNIC_SCSI_DBG(iter_data->snic->shost, "Found IO in %s on LUN\n",
+ snic_ioreq_state_to_str(CMD_STATE(sc)));

- /*
- * Found IO that is still pending w/ firmware and belongs to
- * the LUN that is under reset, if lr_sc != NULL
- */
- SNIC_SCSI_DBG(snic->shost, "Found IO in %s on LUN\n",
- snic_ioreq_state_to_str(CMD_STATE(sc)));
+ if (CMD_STATE(sc) == SNIC_IOREQ_ABTS_PENDING)
+ iter_data->ret = 1;
+ spin_unlock_irqrestore(io_lock, flags);

- if (CMD_STATE(sc) == SNIC_IOREQ_ABTS_PENDING) {
- spin_unlock_irqrestore(io_lock, flags);
+ return true;
+}

- return 1;
- }
+static int
+snic_is_abts_pending(struct snic *snic, struct scsi_device *lr_sdev)
+{
+ struct snic_cmd_pending_iter_data iter_data = {
+ .snic = snic,
+ .sdev = lr_sdev,
+ .ret = 0,
+ };

- spin_unlock_irqrestore(io_lock, flags);
- }
+ /* walk through the tag map, an dcheck if IOs are still pending in fw*/
+ scsi_host_tagset_busy_iter(snic->shost,
+ snic_is_abts_pending_iter, &iter_data);

- return 0;
+ return iter_data.ret;
} /* end of snic_is_abts_pending */

-static int
-snic_dr_clean_single_req(struct snic *snic,
- u32 tag,
- struct scsi_device *lr_sdev)
+static bool
+snic_dr_clean_single_req(struct scsi_cmnd *sc, void *data, bool reserved)
{
struct snic_req_info *rqi = NULL;
struct snic_tgt *tgt = NULL;
- struct scsi_cmnd *sc = NULL;
spinlock_t *io_lock = NULL;
u32 sv_state = 0, tmf = 0;
DECLARE_COMPLETION_ONSTACK(tm_done);
unsigned long flags;
int ret = 0;
+ struct snic_cmd_pending_iter_data *iter_data = data;
+ struct snic *snic = iter_data->snic;

- io_lock = snic_io_lock_tag(snic, tag);
- spin_lock_irqsave(io_lock, flags);
- sc = scsi_host_find_tag(snic->shost, tag);
+ if (reserved)
+ return true;

- /* Ignore Cmd that don't belong to Lun Reset device */
- if (!sc || sc->device != lr_sdev)
- goto skip_clean;
+ if (sc->device != iter_data->sdev)
+ return true;

+ io_lock = snic_io_lock_tag(snic, sc->request->tag);
+ spin_lock_irqsave(io_lock, flags);
rqi = (struct snic_req_info *) CMD_SP(sc);
-
if (!rqi)
goto skip_clean;

@@ -1807,7 +1795,7 @@ snic_dr_clean_single_req(struct snic *snic,
if (ret) {
SNIC_HOST_ERR(snic->shost,
"clean_single_req_err:sc %p, tag %d abt failed. tm_tag %d flags 0x%llx\n",
- sc, tag, rqi->tm_tag, CMD_FLAGS(sc));
+ sc, sc->request->tag, rqi->tm_tag, CMD_FLAGS(sc));

spin_lock_irqsave(io_lock, flags);
rqi = (struct snic_req_info *) CMD_SP(sc);
@@ -1818,7 +1806,7 @@ snic_dr_clean_single_req(struct snic *snic,
if (CMD_STATE(sc) == SNIC_IOREQ_ABTS_PENDING)
CMD_STATE(sc) = sv_state;

- ret = 1;
+ iter_data->ret = 1;
goto skip_clean;
}

@@ -1844,56 +1832,49 @@ snic_dr_clean_single_req(struct snic *snic,
if (CMD_ABTS_STATUS(sc) == SNIC_INVALID_CODE) {
SNIC_HOST_ERR(snic->shost,
"clean_single_req_err:sc %p tag %d abt still pending w/ fw, tm_tag %d flags 0x%llx\n",
- sc, tag, rqi->tm_tag, CMD_FLAGS(sc));
+ sc, sc->request->tag, rqi->tm_tag, CMD_FLAGS(sc));

CMD_FLAGS(sc) |= SNIC_IO_ABTS_TERM_DONE;
- ret = 1;
-
- goto skip_clean;
- }
-
- CMD_STATE(sc) = SNIC_IOREQ_ABTS_COMPLETE;
- CMD_SP(sc) = NULL;
- spin_unlock_irqrestore(io_lock, flags);
-
- snic_release_req_buf(snic, rqi, sc);
-
- sc->result = (DID_ERROR << 16);
- sc->scsi_done(sc);
+ iter_data->ret = 1;
+ } else {
+ CMD_STATE(sc) = SNIC_IOREQ_ABTS_COMPLETE;
+ CMD_SP(sc) = NULL;
+ spin_unlock_irqrestore(io_lock, flags);

- ret = 0;
+ snic_release_req_buf(snic, rqi, sc);

- return ret;
+ sc->result = (DID_ERROR << 16);
+ sc->scsi_done(sc);
+ }
+ return true;

skip_clean:
spin_unlock_irqrestore(io_lock, flags);
-
- return ret;
+ return true;
} /* end of snic_dr_clean_single_req */

static int
-snic_dr_clean_pending_req(struct snic *snic, struct scsi_cmnd *lr_sc)
+snic_dr_clean_pending_req(struct snic *snic, struct scsi_device *lr_sdev)
{
- struct scsi_device *lr_sdev = lr_sc->device;
- u32 tag = 0;
int ret = FAILED;
+ struct snic_cmd_pending_iter_data iter_data = {
+ .snic = snic,
+ .sdev = lr_sdev,
+ .ret = 0,
+ };

- for (tag = 0; tag < snic->max_tag_id; tag++) {
- if (tag == snic_cmd_tag(lr_sc))
- continue;
+ scsi_host_tagset_busy_iter(snic->shost,
+ snic_dr_clean_single_req, &iter_data);
+ if (iter_data.ret) {
+ SNIC_HOST_ERR(snic->shost, "clean_err = %d\n", iter_data.ret);

- ret = snic_dr_clean_single_req(snic, tag, lr_sdev);
- if (ret) {
- SNIC_HOST_ERR(snic->shost, "clean_err:tag = %d\n", tag);
-
- goto clean_err;
- }
+ goto clean_err;
}

schedule_timeout(msecs_to_jiffies(100));

/* Walk through all the cmds and check abts status. */
- if (snic_is_abts_pending(snic, lr_sc)) {
+ if (snic_is_abts_pending(snic, lr_sdev)) {
ret = FAILED;

goto clean_err;
@@ -1980,7 +1961,7 @@ snic_dr_finish(struct snic *snic, struct scsi_cmnd *sc)
* succeeds.
*/

- ret = snic_dr_clean_pending_req(snic, sc);
+ ret = snic_dr_clean_pending_req(snic, sc->device);
if (ret) {
spin_lock_irqsave(io_lock, flags);
SNIC_SCSI_DBG(snic->shost,
@@ -2438,87 +2419,83 @@ snic_cmpl_pending_tmreq(struct snic *snic, struct scsi_cmnd *sc)
complete(rqi->abts_done);
}

-/*
- * snic_scsi_cleanup: Walks through tag map and releases the reqs
- */
-static void
-snic_scsi_cleanup(struct snic *snic, int ex_tag)
+static bool
+snic_scsi_cleanup_iter(struct scsi_cmnd *sc, void *data, bool reserved)
{
+ struct snic *snic = data;
struct snic_req_info *rqi = NULL;
- struct scsi_cmnd *sc = NULL;
spinlock_t *io_lock = NULL;
unsigned long flags;
- int tag;
u64 st_time = 0;

- SNIC_SCSI_DBG(snic->shost, "sc_clean: scsi cleanup.\n");
-
- for (tag = 0; tag < snic->max_tag_id; tag++) {
- /* Skip ex_tag */
- if (tag == ex_tag)
- continue;
+ if (reserved)
+ return true;

- io_lock = snic_io_lock_tag(snic, tag);
- spin_lock_irqsave(io_lock, flags);
- sc = scsi_host_find_tag(snic->shost, tag);
- if (!sc) {
- spin_unlock_irqrestore(io_lock, flags);
-
- continue;
- }
-
- if (unlikely(snic_tmreq_pending(sc))) {
- /*
- * When FW Completes reset w/o sending completions
- * for outstanding ios.
- */
- snic_cmpl_pending_tmreq(snic, sc);
- spin_unlock_irqrestore(io_lock, flags);
-
- continue;
- }
+ io_lock = snic_io_lock_tag(snic, snic_cmd_tag(sc));
+ spin_lock_irqsave(io_lock, flags);
+ if (unlikely(snic_tmreq_pending(sc))) {
+ /*
+ * When FW Completes reset w/o sending completions
+ * for outstanding ios.
+ */
+ snic_cmpl_pending_tmreq(snic, sc);
+ spin_unlock_irqrestore(io_lock, flags);

- rqi = (struct snic_req_info *) CMD_SP(sc);
- if (!rqi) {
- spin_unlock_irqrestore(io_lock, flags);
+ return true;;
+ }

- goto cleanup;
- }
+ rqi = (struct snic_req_info *) CMD_SP(sc);
+ if (!rqi) {
+ spin_unlock_irqrestore(io_lock, flags);
+ goto cleanup;
+ }

- SNIC_SCSI_DBG(snic->shost,
- "sc_clean: sc %p, rqi %p, tag %d flags 0x%llx\n",
- sc, rqi, tag, CMD_FLAGS(sc));
+ SNIC_SCSI_DBG(snic->shost,
+ "sc_clean: sc %p, rqi %p, tag %d flags 0x%llx\n",
+ sc, rqi, snic_cmd_tag(sc), CMD_FLAGS(sc));

- CMD_SP(sc) = NULL;
- CMD_FLAGS(sc) |= SNIC_SCSI_CLEANUP;
- spin_unlock_irqrestore(io_lock, flags);
- st_time = rqi->start_time;
+ CMD_SP(sc) = NULL;
+ CMD_FLAGS(sc) |= SNIC_SCSI_CLEANUP;
+ spin_unlock_irqrestore(io_lock, flags);
+ st_time = rqi->start_time;

- SNIC_HOST_INFO(snic->shost,
- "sc_clean: Releasing rqi %p : flags 0x%llx\n",
- rqi, CMD_FLAGS(sc));
+ SNIC_HOST_INFO(snic->shost,
+ "sc_clean: Releasing rqi %p : flags 0x%llx\n",
+ rqi, CMD_FLAGS(sc));

- snic_release_req_buf(snic, rqi, sc);
+ snic_release_req_buf(snic, rqi, sc);

cleanup:
- sc->result = DID_TRANSPORT_DISRUPTED << 16;
- SNIC_HOST_INFO(snic->shost,
- "sc_clean: DID_TRANSPORT_DISRUPTED for sc %p, Tag %d flags 0x%llx rqi %p duration %u msecs\n",
- sc, sc->request->tag, CMD_FLAGS(sc), rqi,
- jiffies_to_msecs(jiffies - st_time));
+ sc->result = DID_TRANSPORT_DISRUPTED << 16;
+ SNIC_HOST_INFO(snic->shost,
+ "sc_clean: DID_TRANSPORT_DISRUPTED for sc %p, Tag %d flags 0x%llx rqi %p duration %u msecs\n",
+ sc, snic_cmd_tag(sc), CMD_FLAGS(sc), rqi,
+ jiffies_to_msecs(jiffies - st_time));

- /* Update IO stats */
- snic_stats_update_io_cmpl(&snic->s_stats);
+ /* Update IO stats */
+ snic_stats_update_io_cmpl(&snic->s_stats);

- if (sc->scsi_done) {
- SNIC_TRC(snic->shost->host_no, tag, (ulong) sc,
- jiffies_to_msecs(jiffies - st_time), 0,
- SNIC_TRC_CMD(sc),
- SNIC_TRC_CMD_STATE_FLAGS(sc));
+ if (sc->scsi_done) {
+ SNIC_TRC(snic->shost->host_no, snic_cmd_tag(sc), (ulong) sc,
+ jiffies_to_msecs(jiffies - st_time), 0,
+ SNIC_TRC_CMD(sc),
+ SNIC_TRC_CMD_STATE_FLAGS(sc));

- sc->scsi_done(sc);
- }
+ sc->scsi_done(sc);
}
+ return true;
+}
+
+/*
+ * snic_scsi_cleanup: Walks through tag map and releases the reqs
+ */
+static void
+snic_scsi_cleanup(struct snic *snic)
+{
+ SNIC_SCSI_DBG(snic->shost, "sc_clean: scsi cleanup.\n");
+
+ scsi_host_tagset_busy_iter(snic->shost,
+ snic_scsi_cleanup_iter, snic);
} /* end of snic_scsi_cleanup */

void
@@ -2526,7 +2503,7 @@ snic_shutdown_scsi_cleanup(struct snic *snic)
{
SNIC_HOST_INFO(snic->shost, "Shutdown time SCSI Cleanup.\n");

- snic_scsi_cleanup(snic, SCSI_NO_TAG);
+ snic_scsi_cleanup(snic);
} /* end of snic_shutdown_scsi_cleanup */

/*
@@ -2615,6 +2592,40 @@ snic_internal_abort_io(struct snic *snic, struct scsi_cmnd *sc, int tmf)
return ret;
} /* end of snic_internal_abort_io */

+struct snic_tgt_scsi_abort_io_iter_data {
+ struct snic *snic;
+ struct snic_tgt *tgt;
+ int tmf;
+ int abt_cnt;
+};
+
+static bool
+snic_tgt_scsi_abort_io_iter(struct scsi_cmnd *sc, void *data, bool reserved)
+{
+ struct snic_tgt_scsi_abort_io_iter_data *iter_data = data;
+ struct snic_tgt *sc_tgt = NULL;
+ int ret;
+
+ if (reserved)
+ return true;
+
+ sc_tgt = starget_to_tgt(scsi_target(sc->device));
+ if (sc_tgt != iter_data->tgt)
+ return true;
+
+ ret = snic_internal_abort_io(iter_data->snic, sc, iter_data->tmf);
+ if (ret < 0) {
+ SNIC_HOST_ERR(iter_data->snic->shost,
+ "tgt_abt_io: Tag %x, Failed w err = %d\n",
+ snic_cmd_tag(sc), ret);
+ return true;
+ }
+
+ if (ret == SUCCESS)
+ iter_data->abt_cnt++;
+ return true;
+}
+
/*
* snic_tgt_scsi_abort_io : called by snic_tgt_del
*/
@@ -2622,11 +2633,10 @@ int
snic_tgt_scsi_abort_io(struct snic_tgt *tgt)
{
struct snic *snic = NULL;
- struct scsi_cmnd *sc = NULL;
- struct snic_tgt *sc_tgt = NULL;
- spinlock_t *io_lock = NULL;
- unsigned long flags;
- int ret = 0, tag, abt_cnt = 0, tmf = 0;
+ struct snic_tgt_scsi_abort_io_iter_data iter_data = {
+ .tgt = tgt,
+ .abt_cnt = 0,
+ };

if (!tgt)
return -1;
@@ -2635,43 +2645,15 @@ snic_tgt_scsi_abort_io(struct snic_tgt *tgt)
SNIC_SCSI_DBG(snic->shost, "tgt_abt_io: Cleaning Pending IOs.\n");

if (tgt->tdata.typ == SNIC_TGT_DAS)
- tmf = SNIC_ITMF_ABTS_TASK;
+ iter_data.tmf = SNIC_ITMF_ABTS_TASK;
else
- tmf = SNIC_ITMF_ABTS_TASK_TERM;
-
- for (tag = 0; tag < snic->max_tag_id; tag++) {
- io_lock = snic_io_lock_tag(snic, tag);
-
- spin_lock_irqsave(io_lock, flags);
- sc = scsi_host_find_tag(snic->shost, tag);
- if (!sc) {
- spin_unlock_irqrestore(io_lock, flags);
-
- continue;
- }
-
- sc_tgt = starget_to_tgt(scsi_target(sc->device));
- if (sc_tgt != tgt) {
- spin_unlock_irqrestore(io_lock, flags);
-
- continue;
- }
- spin_unlock_irqrestore(io_lock, flags);
-
- ret = snic_internal_abort_io(snic, sc, tmf);
- if (ret < 0) {
- SNIC_HOST_ERR(snic->shost,
- "tgt_abt_io: Tag %x, Failed w err = %d\n",
- tag, ret);
+ iter_data.tmf = SNIC_ITMF_ABTS_TASK_TERM;
+ iter_data.snic = snic;

- continue;
- }
-
- if (ret == SUCCESS)
- abt_cnt++;
- }
+ scsi_host_tagset_busy_iter(snic->shost,
+ snic_tgt_scsi_abort_io_iter, &iter_data);

- SNIC_SCSI_DBG(snic->shost, "tgt_abt_io: abt_cnt = %d\n", abt_cnt);
+ SNIC_SCSI_DBG(snic->shost, "tgt_abt_io: abt_cnt = %d\n", iter_data.abt_cnt);

return 0;
} /* end of snic_tgt_scsi_abort_io */
--
2.17.1