From: Quinn Tran <qutran@xxxxxxxxxxx>
Current edif code does not keep track of FW IOCB resources.
This led to IOCB queue full on error recovery (IO timeout).
This patch make use of the existing code that track IOCB
resources to prevent over subscription of IOCB resources.
Signed-off-by: Quinn Tran <qutran@xxxxxxxxxxx>
Signed-off-by: Nilesh Javali <njavali@xxxxxxxxxxx>
---
drivers/scsi/qla2xxx/qla_edif.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/scsi/qla2xxx/qla_edif.c b/drivers/scsi/qla2xxx/qla_edif.c
index 18eb8d63e37c..6a16e16e39f5 100644
--- a/drivers/scsi/qla2xxx/qla_edif.c
+++ b/drivers/scsi/qla2xxx/qla_edif.c
@@ -2951,6 +2951,12 @@ qla28xx_start_scsi_edif(srb_t *sp)
tot_dsds = nseg;
req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
+
+ sp->iores.res_type = RESOURCE_INI;
+ sp->iores.iocb_cnt = req_cnt;
+ if (qla_get_iocbs(sp->qpair, &sp->iores))
+ goto queuing_error;
+
if (req->cnt < (req_cnt + 2)) {
cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
rd_reg_dword(req->req_q_out);
@@ -3142,6 +3148,7 @@ qla28xx_start_scsi_edif(srb_t *sp)
mempool_free(sp->u.scmd.ct6_ctx, ha->ctx_mempool);
sp->u.scmd.ct6_ctx = NULL;
}
+ qla_put_iocbs(sp->qpair, &sp->iores);
spin_unlock_irqrestore(lock, flags);
return QLA_FUNCTION_FAILED;
--
2.19.0.rc0
