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=-19.4 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=unavailable 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 022A6C433ED for ; Mon, 10 May 2021 10:29:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C10C961949 for ; Mon, 10 May 2021 10:29:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231264AbhEJKa7 (ORCPT ); Mon, 10 May 2021 06:30:59 -0400 Received: from mail.kernel.org ([198.145.29.99]:33952 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231660AbhEJK1w (ORCPT ); Mon, 10 May 2021 06:27:52 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id A7B74610C9; Mon, 10 May 2021 10:26:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1620642396; bh=t9f/7bHCVTgR+AuzpestGI9KgiTNtjS/ARaBFz0PumU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mZQ6qBlHvQZTFIVXOegTibUwAsD5iHPlcoBxKTQpVVTSPidh49NR/AnM207i8xxOQ ICMBxMRuuvbVurzR8owrMX1q3fqJ0Bbqls9BxFxjvuWWMjiTXLmFZHgoOM3HyqWQ7w /pbgW2aCHaXZ6rOOEGogNhR7UFbaBtz2xN/pWmKc= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dick Kennedy , James Smart , "Martin K. Petersen" , Sasha Levin Subject: [PATCH 5.4 076/184] scsi: lpfc: Fix pt2pt connection does not recover after LOGO Date: Mon, 10 May 2021 12:19:30 +0200 Message-Id: <20210510101952.679968628@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210510101950.200777181@linuxfoundation.org> References: <20210510101950.200777181@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: James Smart [ Upstream commit bd4f5100424d17d4e560d6653902ef8e49b2fc1f ] On a pt2pt setup, between 2 initiators, if one side issues a a LOGO, there is no relogin attempt. The FC specs are grey in this area on which port (higher wwn or not) is to re-login. As there is no spec guidance, unconditionally re-PLOGI after the logout to ensure a login is re-established. Link: https://lore.kernel.org/r/20210301171821.3427-8-jsmart2021@gmail.com Co-developed-by: Dick Kennedy Signed-off-by: Dick Kennedy Signed-off-by: James Smart Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/lpfc/lpfc_nportdisc.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c index 418d62e94554..ea31711b1aeb 100644 --- a/drivers/scsi/lpfc/lpfc_nportdisc.c +++ b/drivers/scsi/lpfc/lpfc_nportdisc.c @@ -888,9 +888,14 @@ lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, } } else if ((!(ndlp->nlp_type & NLP_FABRIC) && ((ndlp->nlp_type & NLP_FCP_TARGET) || - !(ndlp->nlp_type & NLP_FCP_INITIATOR))) || + (ndlp->nlp_type & NLP_NVME_TARGET) || + (vport->fc_flag & FC_PT2PT))) || (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) { - /* Only try to re-login if this is NOT a Fabric Node */ + /* Only try to re-login if this is NOT a Fabric Node + * AND the remote NPORT is a FCP/NVME Target or we + * are in pt2pt mode. NLP_STE_ADISC_ISSUE is a special + * case for LOGO as a response to ADISC behavior. + */ mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); spin_lock_irq(shost->host_lock); -- 2.30.2