From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sasikumar Chandrasekaran Subject: [PATCH V5 09/11] megaraid_sas: ldio_outstanding variable is not decremented in completion path Date: Wed, 14 Dec 2016 17:13:06 -0500 Message-ID: <1481753588-101811-10-git-send-email-sasikumar.pc@broadcom.com> References: <1481753588-101811-1-git-send-email-sasikumar.pc@broadcom.com> Return-path: Received: from mail-qt0-f172.google.com ([209.85.216.172]:34211 "EHLO mail-qt0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933805AbcLNWNq (ORCPT ); Wed, 14 Dec 2016 17:13:46 -0500 Received: by mail-qt0-f172.google.com with SMTP id n6so39507678qtd.1 for ; Wed, 14 Dec 2016 14:13:45 -0800 (PST) In-Reply-To: <1481753588-101811-1-git-send-email-sasikumar.pc@broadcom.com> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: jejb@kernel.org, hch@infradead.org Cc: linux-scsi@vger.kernel.org, Sathya.Prakash@broadcom.com, linux-kernel@vger.kernel.org, christopher.owens@broadcom.com, kiran-kumar.kasturi@broadcom.com, thenzl@redhat.com, sasikumar.pc@broadcom.com ldio outstanding variable needs to be decremented in io completion path for iMR dual queue depth This patch is depending on patch 8 This patch is same as V4 and there is no specific update for V5 Signed-off-by: Sasikumar Chandrasekaran Reviewed-by: Tomas Henzl --- drivers/scsi/megaraid/megaraid_sas_fusion.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c index 9b08de7..d4c78b0 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.c +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c @@ -2571,7 +2571,6 @@ void megasas_prepare_secondRaid1_IO(struct megasas_instance *instance, if (atomic_inc_return(&instance->fw_outstanding) > instance->host->can_queue) { - dev_err(&instance->pdev->dev, "Throttle IOs beyond Controller queue depth\n"); atomic_dec(&instance->fw_outstanding); return SCSI_MLQUEUE_HOST_BUSY; } @@ -2803,6 +2802,9 @@ void megasas_prepare_secondRaid1_IO(struct megasas_instance *instance, extStatus, data_length, sense); scsi_io_req->RaidContext.raid_context.status = 0; scsi_io_req->RaidContext.raid_context.ex_status = 0; + if (instance->ldio_threshold + && megasas_cmd_type(scmd_local) == READ_WRITE_LDIO) + atomic_dec(&instance->ldio_outstanding); megasas_return_cmd_fusion(instance, cmd_fusion); scsi_dma_unmap(scmd_local); scmd_local->scsi_done(scmd_local); @@ -3951,7 +3953,8 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int reason) scmd_local->result = megasas_check_mpio_paths(instance, scmd_local); - if (megasas_cmd_type(scmd_local) == READ_WRITE_LDIO) + if (instance->ldio_threshold && + megasas_cmd_type(scmd_local) == READ_WRITE_LDIO) atomic_dec(&instance->ldio_outstanding); megasas_return_cmd_fusion(instance, cmd_fusion); scsi_dma_unmap(scmd_local); -- 1.8.3.1