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,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, 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 7EE25C43462 for ; Mon, 17 May 2021 15:30:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 63F4C6113C for ; Mon, 17 May 2021 15:30:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244492AbhEQPbZ (ORCPT ); Mon, 17 May 2021 11:31:25 -0400 Received: from mail.kernel.org ([198.145.29.99]:56322 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244403AbhEQP3B (ORCPT ); Mon, 17 May 2021 11:29:01 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id E31BC61CBA; Mon, 17 May 2021 14:37:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1621262245; bh=bDdVezbQV24ZSV5CqB+afjH1cjjLiMUa02Hsb2TYgis=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FwpkYa646FR2no1AJ+t0wf2CiSPl4+lGJOE8/0GAezK3RceFqp5jR4d7o2wWlnTBO 79IyAYIpMwlVPwI6FdKPDiWTXSTHW4hABn17KCS3INcIJm8X57C7gKO8FbhW90uIPm LBxPBZgCLom3F7oC5j5EqSCuZViBnUGPgOeXjPLA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Roman Bolshakov , Himanshu Madhani , Anastasia Kovaleva , "Martin K. Petersen" , Sasha Levin Subject: [PATCH 5.10 140/289] scsi: qla2xxx: Prevent PRLI in target mode Date: Mon, 17 May 2021 16:01:05 +0200 Message-Id: <20210517140309.865578700@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210517140305.140529752@linuxfoundation.org> References: <20210517140305.140529752@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: Anastasia Kovaleva [ Upstream commit fcb16d9a8ecf1e9bfced0fc654ea4e2caa7517f4 ] In a case when the initiator in P2P mode by some circumstances does not send PRLI, the target, in a case when the target port's WWPN is less than initiator's, changes the discovery state in DSC_GNL. When gnl completes it sends PRLI to the initiator. Usually the initiator in P2P mode always sends PRLI. We caught this issue on Linux stable v5.4.6 https://www.spinics.net/lists/stable/msg458515.html. Fix this particular corner case in the behaviour of the P2P mod target login state machine. Link: https://lore.kernel.org/r/20210422153414.4022-1-a.kovaleva@yadro.com Fixes: a9ed06d4e640 ("scsi: qla2xxx: Allow PLOGI in target mode") Reviewed-by: Roman Bolshakov Reviewed-by: Himanshu Madhani Signed-off-by: Anastasia Kovaleva Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/qla2xxx/qla_init.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 52e8b555bd1d..6faf34fa6220 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -1190,6 +1190,9 @@ static int qla24xx_post_prli_work(struct scsi_qla_host *vha, fc_port_t *fcport) { struct qla_work_evt *e; + if (vha->host->active_mode == MODE_TARGET) + return QLA_FUNCTION_FAILED; + e = qla2x00_alloc_work(vha, QLA_EVT_PRLI); if (!e) return QLA_FUNCTION_FAILED; -- 2.30.2