Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753534AbcLFXBE (ORCPT ); Tue, 6 Dec 2016 18:01:04 -0500 Received: from mail-qt0-f180.google.com ([209.85.216.180]:33639 "EHLO mail-qt0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753487AbcLFXA5 (ORCPT ); Tue, 6 Dec 2016 18:00:57 -0500 From: Sasikumar Chandrasekaran 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 Subject: [PATCH V4 09/11] megaraid_sas: ldio_outstanding variable is not decremented in completion path Date: Tue, 6 Dec 2016 18:00:18 -0500 Message-Id: <1481065220-18431-10-git-send-email-sasikumar.pc@broadcom.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1481065220-18431-1-git-send-email-sasikumar.pc@broadcom.com> References: <1481065220-18431-1-git-send-email-sasikumar.pc@broadcom.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1804 Lines: 46 ldio outstanding variable needs to be decremented in io completion path for iMR dual queue depth This patch is depending on patch 8 Signed-off-by: Sasikumar Chandrasekaran --- drivers/scsi/megaraid/megaraid_sas_fusion.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c index 5992153..3598590 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.c +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c @@ -2584,7 +2584,6 @@ 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; } @@ -2818,6 +2817,10 @@ void megasas_prepare_secondRaid1_IO(struct megasas_instance *instance, = 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); @@ -3966,7 +3969,9 @@ 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