From: Quinn Tran qutran@marvell.com
[ Upstream commit 0b3f3143d473b489a7aa0779c43bcdb344bd3014 ]
Relating to EDIF, when sending IKE message, updating key or deleting key, driver can encounter IOCB queue full. Add additional retries to reduce higher level recovery.
Link: https://lore.kernel.org/r/20220607044627.19563-8-njavali@marvell.com Fixes: dd30706e73b7 ("scsi: qla2xxx: edif: Add key update") Signed-off-by: Quinn Tran qutran@marvell.com Signed-off-by: Nilesh Javali njavali@marvell.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/qla2xxx/qla_edif.c | 52 +++++++++++++++++++++++---------- drivers/scsi/qla2xxx/qla_os.c | 2 +- 2 files changed, 38 insertions(+), 16 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_edif.c b/drivers/scsi/qla2xxx/qla_edif.c index bdcc38bd955a..ee8e1ae2c300 100644 --- a/drivers/scsi/qla2xxx/qla_edif.c +++ b/drivers/scsi/qla2xxx/qla_edif.c @@ -1274,6 +1274,8 @@ qla24xx_check_sadb_avail_slot(struct bsg_job *bsg_job, fc_port_t *fcport,
#define QLA_SA_UPDATE_FLAGS_RX_KEY 0x0 #define QLA_SA_UPDATE_FLAGS_TX_KEY 0x2 +#define EDIF_MSLEEP_INTERVAL 100 +#define EDIF_RETRY_COUNT 50
int qla24xx_sadb_update(struct bsg_job *bsg_job) @@ -1286,7 +1288,7 @@ qla24xx_sadb_update(struct bsg_job *bsg_job) struct edif_list_entry *edif_entry = NULL; int found = 0; int rval = 0; - int result = 0; + int result = 0, cnt; struct qla_sa_update_frame sa_frame; struct srb_iocb *iocb_cmd; port_id_t portid; @@ -1527,11 +1529,23 @@ qla24xx_sadb_update(struct bsg_job *bsg_job) sp->done = qla2x00_bsg_job_done; iocb_cmd = &sp->u.iocb_cmd; iocb_cmd->u.sa_update.sa_frame = sa_frame; - + cnt = 0; +retry: rval = qla2x00_start_sp(sp); - if (rval != QLA_SUCCESS) { + switch (rval) { + case QLA_SUCCESS: + break; + case EAGAIN: + msleep(EDIF_MSLEEP_INTERVAL); + cnt++; + if (cnt < EDIF_RETRY_COUNT) + goto retry; + + fallthrough; + default: ql_log(ql_dbg_edif, vha, 0x70e3, - "qla2x00_start_sp failed=%d.\n", rval); + "%s qla2x00_start_sp failed=%d.\n", + __func__, rval);
qla2x00_rel_sp(sp); rval = -EIO; @@ -2254,7 +2268,6 @@ qla24xx_issue_sa_replace_iocb(scsi_qla_host_t *vha, struct qla_work_evt *e) rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS) { - rval = QLA_FUNCTION_FAILED; goto done_free_sp; }
@@ -3383,7 +3396,7 @@ int qla_edif_process_els(scsi_qla_host_t *vha, struct bsg_job *bsg_job) fc_port_t *fcport = NULL; struct qla_hw_data *ha = vha->hw; srb_t *sp; - int rval = (DID_ERROR << 16); + int rval = (DID_ERROR << 16), cnt; port_id_t d_id; struct qla_bsg_auth_els_request *p = (struct qla_bsg_auth_els_request *)bsg_job->request; @@ -3474,17 +3487,26 @@ int qla_edif_process_els(scsi_qla_host_t *vha, struct bsg_job *bsg_job) sp->free = qla2x00_bsg_sp_free; sp->done = qla2x00_bsg_job_done;
+ cnt = 0; +retry: rval = qla2x00_start_sp(sp); - - ql_dbg(ql_dbg_edif, vha, 0x700a, - "%s %s %8phN xchg %x ctlflag %x hdl %x reqlen %xh bsg ptr %p\n", - __func__, sc_to_str(p->e.sub_cmd), fcport->port_name, - p->e.extra_rx_xchg_address, p->e.extra_control_flags, - sp->handle, sp->remap.req.len, bsg_job); - - if (rval != QLA_SUCCESS) { + switch (rval) { + case QLA_SUCCESS: + ql_dbg(ql_dbg_edif, vha, 0x700a, + "%s %s %8phN xchg %x ctlflag %x hdl %x reqlen %xh bsg ptr %p\n", + __func__, sc_to_str(p->e.sub_cmd), fcport->port_name, + p->e.extra_rx_xchg_address, p->e.extra_control_flags, + sp->handle, sp->remap.req.len, bsg_job); + break; + case EAGAIN: + msleep(EDIF_MSLEEP_INTERVAL); + cnt++; + if (cnt < EDIF_RETRY_COUNT) + goto retry; + fallthrough; + default: ql_log(ql_log_warn, vha, 0x700e, - "qla2x00_start_sp failed = %d\n", rval); + "%s qla2x00_start_sp failed = %d\n", __func__, rval); SET_DID_STATUS(bsg_reply->result, DID_IMM_RETRY); rval = -EIO; goto done_free_remap_rsp; diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index e683b1c01c9f..e87ad7e0dc94 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -5466,7 +5466,7 @@ qla2x00_do_work(struct scsi_qla_host *vha) e->u.fcport.fcport, false); break; case QLA_EVT_SA_REPLACE: - qla24xx_issue_sa_replace_iocb(vha, e); + rc = qla24xx_issue_sa_replace_iocb(vha, e); break; }