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 X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1410EC433E0 for ; Mon, 1 Mar 2021 19:51:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B705864DE3 for ; Mon, 1 Mar 2021 19:51:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242069AbhCATup (ORCPT ); Mon, 1 Mar 2021 14:50:45 -0500 Received: from mail.kernel.org ([198.145.29.99]:53006 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240808AbhCATlV (ORCPT ); Mon, 1 Mar 2021 14:41:21 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 9F0B76514A; Mon, 1 Mar 2021 17:04:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1614618290; bh=wXoBJGIedjU+LYSfFDiuM6W1hdQiuqWvxje76qfCJ4k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=vVshniClEa2qVMWHcimKwEqc2uMs+MQ0wC5ioaF8fON5wHAYkPgVGRCEwN+iPZohv qdckkiXRvD7B++pLZK7MApwX7vS+OblD8oM58CgavegTFCQj8X7K5mulfAzHBCIxtO 9yM4Haefh4M7R6/BqHSFSi040vroKkYfmXMQlkos= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Himanshu Madhani , Quinn Tran , Nilesh Javali , "Martin K. Petersen" Subject: [PATCH 5.10 006/663] scsi: qla2xxx: Fix mailbox Ch erroneous error Date: Mon, 1 Mar 2021 17:04:14 +0100 Message-Id: <20210301161142.095904786@linuxfoundation.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210301161141.760350206@linuxfoundation.org> References: <20210301161141.760350206@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: stable@vger.kernel.org From: Quinn Tran commit 044c218b04503858ca4e17f61899c8baa0ae9ba1 upstream. Mailbox Ch/dump ram extend expects mb register 10 to be set. If not set/clear, firmware can pick up garbage from previous invocation of this mailbox. Example: mctp dump can set mb10. On subsequent flash read which use mailbox cmd Ch, mb10 can retain previous value. Link: https://lore.kernel.org/r/20210111093134.1206-6-njavali@marvell.com Cc: stable@vger.kernel.org Reviewed-by: Himanshu Madhani Signed-off-by: Quinn Tran Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/qla2xxx/qla_dbg.c | 1 + drivers/scsi/qla2xxx/qla_mbx.c | 3 ++- 2 files changed, 3 insertions(+), 1 deletion(-) --- a/drivers/scsi/qla2xxx/qla_dbg.c +++ b/drivers/scsi/qla2xxx/qla_dbg.c @@ -202,6 +202,7 @@ qla24xx_dump_ram(struct qla_hw_data *ha, wrt_reg_word(®->mailbox0, MBC_DUMP_RISC_RAM_EXTENDED); wrt_reg_word(®->mailbox1, LSW(addr)); wrt_reg_word(®->mailbox8, MSW(addr)); + wrt_reg_word(®->mailbox10, 0); wrt_reg_word(®->mailbox2, MSW(LSD(dump_dma))); wrt_reg_word(®->mailbox3, LSW(LSD(dump_dma))); --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -4277,7 +4277,8 @@ qla2x00_dump_ram(scsi_qla_host_t *vha, d if (MSW(addr) || IS_FWI2_CAPABLE(vha->hw)) { mcp->mb[0] = MBC_DUMP_RISC_RAM_EXTENDED; mcp->mb[8] = MSW(addr); - mcp->out_mb = MBX_8|MBX_0; + mcp->mb[10] = 0; + mcp->out_mb = MBX_10|MBX_8|MBX_0; } else { mcp->mb[0] = MBC_DUMP_RISC_RAM; mcp->out_mb = MBX_0;