From mboxrd@z Thu Jan 1 00:00:00 1970 From: Suman Tripathi Subject: [PATCH] ahci_xgene: Fix the dma state machine lockup for the ATA_CMD_SMART PIO mode command. Date: Tue, 27 Jan 2015 23:26:11 +0530 Message-ID: <1422381371-11361-2-git-send-email-stripathi@apm.com> References: <1422381371-11361-1-git-send-email-stripathi@apm.com> Return-path: Received: from denmail01-v4020.amcc.com ([192.195.68.30]:53161 "EHLO denmail01.apm.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1751532AbbA0R5A (ORCPT ); Tue, 27 Jan 2015 12:57:00 -0500 In-Reply-To: <1422381371-11361-1-git-send-email-stripathi@apm.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: olof@lixom.net, tj@kernel.org, arnd@arndb.de Cc: linux-scsi@vger.kernel.org, linux-ide@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, mlangsdo@redhat.com, jcm@redhat.com, patches@apm.com, Suman Tripathi This patch addresses the issue with ATA_CMD_SMART pio mode command for enumeration and device detection with ATA devices.It is the same issue as in patch www.spinics.net/lists/linux-ide/msg49092.html Signed-off-by: Suman Tripathi --- --- drivers/ata/ahci_xgene.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/ata/ahci_xgene.c b/drivers/ata/ahci_xgene.c index 7f68875..506cf5f 100644 --- a/drivers/ata/ahci_xgene.c +++ b/drivers/ata/ahci_xgene.c @@ -211,7 +211,8 @@ static unsigned int xgene_ahci_qc_issue(struct ata_queued_cmd *qc) } if (unlikely((ctx->last_cmd[ap->port_no] == ATA_CMD_ID_ATA) || - (ctx->last_cmd[ap->port_no] == ATA_CMD_PACKET))) + (ctx->last_cmd[ap->port_no] == ATA_CMD_PACKET) || + (ctx->last_cmd[ap->port_no] == ATA_CMD_SMART))) xgene_ahci_restart_engine(ap); rc = ahci_qc_issue(qc); -- 1.8.2.1