From patchwork Tue Apr 5 07:29:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 557329 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 698DFC433EF for ; Tue, 5 Apr 2022 10:17:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241068AbiDEKKE (ORCPT ); Tue, 5 Apr 2022 06:10:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37836 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346435AbiDEJXt (ORCPT ); Tue, 5 Apr 2022 05:23:49 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0A51A26CB; Tue, 5 Apr 2022 02:13:29 -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 dfw.source.kernel.org (Postfix) with ESMTPS id 54D266165C; Tue, 5 Apr 2022 09:13:29 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 628A4C385A2; Tue, 5 Apr 2022 09:13:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1649150008; bh=ZLTP0CsQzKamaFohUBCVD0Y/Pr2t2IZyPkvu0eeCTco=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=S6cXKlwfAdRQP2Vb2NSmvqmCpzZVe/uCcNg8dn/r/RCT6Fv3KQE29GpEbiZj0j/kI BqidZbXboRdTztFM1wbmbyRQDN2O//Tx53IOJ7pfcfbeikUs+PUSsph7SSQPMT41lO ANZpdITxQmEptXgMZBs/O+56obowqam79+wHLo7k= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Himanshu Madhani , Arun Easi , Nilesh Javali , "Martin K. Petersen" Subject: [PATCH 5.16 0883/1017] scsi: qla2xxx: Fix device reconnect in loop topology Date: Tue, 5 Apr 2022 09:29:56 +0200 Message-Id: <20220405070420.442997105@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220405070354.155796697@linuxfoundation.org> References: <20220405070354.155796697@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Arun Easi commit 8ad4be3d15cf144b5834bdb00d5bbe4050938dc7 upstream. A device logout in loop topology initiates a device connection teardown which loses the FW device handle. In loop topo, the device handle is not regrabbed leading to device login failures and eventually to loss of the device. Fix this by taking the main login path that does it. Link: https://lore.kernel.org/r/20220110050218.3958-11-njavali@marvell.com Cc: stable@vger.kernel.org Reviewed-by: Himanshu Madhani Signed-off-by: Arun Easi Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/qla2xxx/qla_init.c | 15 +++++++++++++++ drivers/scsi/qla2xxx/qla_os.c | 5 +++++ 2 files changed, 20 insertions(+) --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -974,6 +974,9 @@ static void qla24xx_handle_gnl_done_even set_bit(RELOGIN_NEEDED, &vha->dpc_flags); } break; + case ISP_CFG_NL: + qla24xx_fcport_handle_login(vha, fcport); + break; default: break; } @@ -1563,6 +1566,11 @@ static void qla_chk_n2n_b4_login(struct u8 login = 0; int rc; + ql_dbg(ql_dbg_disc, vha, 0x307b, + "%s %8phC DS %d LS %d lid %d retries=%d\n", + __func__, fcport->port_name, fcport->disc_state, + fcport->fw_login_state, fcport->loop_id, fcport->login_retry); + if (qla_tgt_mode_enabled(vha)) return; @@ -5604,6 +5612,13 @@ qla2x00_configure_local_loop(scsi_qla_ho memcpy(fcport->node_name, new_fcport->node_name, WWN_SIZE); fcport->scan_state = QLA_FCPORT_FOUND; + if (fcport->login_retry == 0) { + fcport->login_retry = vha->hw->login_retry_count; + ql_dbg(ql_dbg_disc, vha, 0x2135, + "Port login retry %8phN, lid 0x%04x retry cnt=%d.\n", + fcport->port_name, fcport->loop_id, + fcport->login_retry); + } found++; break; } --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -5533,6 +5533,11 @@ void qla2x00_relogin(struct scsi_qla_hos ea.fcport = fcport; qla24xx_handle_relogin_event(vha, &ea); } else if (vha->hw->current_topology == + ISP_CFG_NL && + IS_QLA2XXX_MIDTYPE(vha->hw)) { + (void)qla24xx_fcport_handle_login(vha, + fcport); + } else if (vha->hw->current_topology == ISP_CFG_NL) { fcport->login_retry--; status =