From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BED4BC35280 for ; Tue, 12 Apr 2022 08:40:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1383462AbiDLIhC (ORCPT ); Tue, 12 Apr 2022 04:37:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48716 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1356564AbiDLHi7 (ORCPT ); Tue, 12 Apr 2022 03:38:59 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6201D51E7A; Tue, 12 Apr 2022 00:09:51 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id C3E69B81895; Tue, 12 Apr 2022 07:09:49 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1DDC7C385A1; Tue, 12 Apr 2022 07:09:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1649747388; bh=bWbmMtCwHDj7WBYZ7MqbFUn8n+43IBiBL0oK60/Kaac=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HMmD4RYpWx98hxu+iNxAY4G898m1R1d++ziNHP3HVFgMZoAM9T0jP2GYdVDkkuz+8 TWoXDMdu0oGF0TaVmSMK7+e02Ul7STx5EoVqH11uPulGoCL4psgXHJdIN2Y8GBgCUa y+upIq3aETTVMkECZMGtbCOLA58p0Ys8UwbRBkSE= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Kevin Barnett , Scott Benesh , Scott Teel , Mahesh Rajashekhara , Don Brace , "Martin K. Petersen" , Sasha Levin Subject: [PATCH 5.17 059/343] scsi: smartpqi: Fix kdump issue when controller is locked up Date: Tue, 12 Apr 2022 08:27:57 +0200 Message-Id: <20220412062952.806610574@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220412062951.095765152@linuxfoundation.org> References: <20220412062951.095765152@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Mahesh Rajashekhara [ Upstream commit 3ada501d602abf02353445c03bb3258146445d90 ] Avoid dropping into shell if the controller is in locked up state. Driver issues SIS soft reset to bring back the controller to SIS mode while OS boots into kdump mode. If the controller is in lockup state, SIS soft reset does not work. Since the controller lockup code has not been cleared, driver considers the firmware is no longer up and running. Driver returns back an error code to OS and the kdump fails. Link: https://lore.kernel.org/r/164375212337.440833.11955356190354940369.stgit@brunhilda.pdev.net Reviewed-by: Kevin Barnett Reviewed-by: Scott Benesh Reviewed-by: Scott Teel Signed-off-by: Mahesh Rajashekhara Signed-off-by: Don Brace Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/smartpqi/smartpqi_init.c | 39 ++++++++++++++++----------- 1 file changed, 23 insertions(+), 16 deletions(-) diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 2db9f874cc51..f3749e508673 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -7855,6 +7855,21 @@ static int pqi_force_sis_mode(struct pqi_ctrl_info *ctrl_info) return pqi_revert_to_sis_mode(ctrl_info); } +static void pqi_perform_lockup_action(void) +{ + switch (pqi_lockup_action) { + case PANIC: + panic("FATAL: Smart Family Controller lockup detected"); + break; + case REBOOT: + emergency_restart(); + break; + case NONE: + default: + break; + } +} + static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info) { int rc; @@ -7879,8 +7894,15 @@ static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info) * commands. */ rc = sis_wait_for_ctrl_ready(ctrl_info); - if (rc) + if (rc) { + if (reset_devices) { + dev_err(&ctrl_info->pci_dev->dev, + "kdump init failed with error %d\n", rc); + pqi_lockup_action = REBOOT; + pqi_perform_lockup_action(); + } return rc; + } /* * Get the controller properties. This allows us to determine @@ -8605,21 +8627,6 @@ static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info, unsigned int de return pqi_ctrl_init_resume(ctrl_info); } -static void pqi_perform_lockup_action(void) -{ - switch (pqi_lockup_action) { - case PANIC: - panic("FATAL: Smart Family Controller lockup detected"); - break; - case REBOOT: - emergency_restart(); - break; - case NONE: - default: - break; - } -} - static struct pqi_raid_error_info pqi_ctrl_offline_raid_error_info = { .data_out_result = PQI_DATA_IN_OUT_HARDWARE_ERROR, .status = SAM_STAT_CHECK_CONDITION, -- 2.35.1