|
 |
a8a466 |
From b151f44de5717ff9be9695f744c9bd0060b3fcb4 Mon Sep 17 00:00:00 2001
|
|
|
a8a466 |
From: Sasikumar Chandrasekaran <sasikumar.pc@broadcom.com>
|
|
|
a8a466 |
Date: Tue, 10 Jan 2017 18:20:51 -0500
|
|
|
a8a466 |
Subject: [PATCH 09/11] scsi: megaraid_sas: ldio_outstanding variable is not
|
|
|
a8a466 |
decremented in completion path
|
|
|
a8a466 |
|
|
|
a8a466 |
ldio outstanding variable needs to be decremented in io completion path for
|
|
|
a8a466 |
iMR dual queue depth
|
|
|
a8a466 |
|
|
|
a8a466 |
Signed-off-by: Sasikumar Chandrasekaran <sasikumar.pc@broadcom.com>
|
|
|
a8a466 |
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
|
|
|
a8a466 |
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
|
|
|
a8a466 |
---
|
|
|
a8a466 |
drivers/scsi/megaraid/megaraid_sas_fusion.c | 7 +++++--
|
|
|
a8a466 |
1 file changed, 5 insertions(+), 2 deletions(-)
|
|
|
a8a466 |
|
|
|
a8a466 |
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
|
|
|
a8a466 |
index 5689a44..82dd2da 100644
|
|
|
a8a466 |
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
|
|
|
a8a466 |
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
|
|
|
a8a466 |
@@ -2580,7 +2580,6 @@ megasas_build_and_issue_cmd_fusion(struct megasas_instance *instance,
|
|
|
a8a466 |
|
|
|
a8a466 |
if (atomic_inc_return(&instance->fw_outstanding) >
|
|
|
a8a466 |
instance->host->can_queue) {
|
|
|
a8a466 |
- dev_err(&instance->pdev->dev, "Throttle IOs beyond Controller queue depth\n");
|
|
|
a8a466 |
atomic_dec(&instance->fw_outstanding);
|
|
|
a8a466 |
return SCSI_MLQUEUE_HOST_BUSY;
|
|
|
a8a466 |
}
|
|
|
a8a466 |
@@ -2811,6 +2810,9 @@ complete_cmd_fusion(struct megasas_instance *instance, u32 MSIxIndex)
|
|
|
a8a466 |
extStatus, data_length, sense);
|
|
|
a8a466 |
scsi_io_req->RaidContext.raid_context.status = 0;
|
|
|
a8a466 |
scsi_io_req->RaidContext.raid_context.ex_status = 0;
|
|
|
a8a466 |
+ if (instance->ldio_threshold
|
|
|
a8a466 |
+ && megasas_cmd_type(scmd_local) == READ_WRITE_LDIO)
|
|
|
a8a466 |
+ atomic_dec(&instance->ldio_outstanding);
|
|
|
a8a466 |
megasas_return_cmd_fusion(instance, cmd_fusion);
|
|
|
a8a466 |
scsi_dma_unmap(scmd_local);
|
|
|
a8a466 |
scmd_local->scsi_done(scmd_local);
|
|
|
a8a466 |
@@ -3955,7 +3957,8 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int reason)
|
|
|
a8a466 |
scmd_local->result =
|
|
|
a8a466 |
megasas_check_mpio_paths(instance,
|
|
|
a8a466 |
scmd_local);
|
|
|
a8a466 |
- if (megasas_cmd_type(scmd_local) == READ_WRITE_LDIO)
|
|
|
a8a466 |
+ if (instance->ldio_threshold &&
|
|
|
a8a466 |
+ megasas_cmd_type(scmd_local) == READ_WRITE_LDIO)
|
|
|
a8a466 |
atomic_dec(&instance->ldio_outstanding);
|
|
|
a8a466 |
megasas_return_cmd_fusion(instance, cmd_fusion);
|
|
|
a8a466 |
scsi_dma_unmap(scmd_local);
|
|
|
a8a466 |
--
|
|
|
a8a466 |
1.8.3.1
|
|
|
a8a466 |
|