From patchwork Sun Jul 18 19:36:29 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Chan X-Patchwork-Id: 480353 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=-20.1 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, MIME_HEADER_CTYPE_ONLY, SPF_HELO_NONE, SPF_PASS, T_TVD_MIME_NO_HEADERS, 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 E197AC636CA for ; Sun, 18 Jul 2021 19:36:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B96C1600D1 for ; Sun, 18 Jul 2021 19:36:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232783AbhGRTjz (ORCPT ); Sun, 18 Jul 2021 15:39:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33210 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232040AbhGRTjw (ORCPT ); Sun, 18 Jul 2021 15:39:52 -0400 Received: from mail-pf1-x431.google.com (mail-pf1-x431.google.com [IPv6:2607:f8b0:4864:20::431]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ACCE6C061762 for ; Sun, 18 Jul 2021 12:36:53 -0700 (PDT) Received: by mail-pf1-x431.google.com with SMTP id a127so14349834pfa.10 for ; Sun, 18 Jul 2021 12:36:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=dERt6o2UteVPOsj5iZQehtuP4vuXB7YNcVjFqprJn+c=; b=RzxroMmoyCsavmP1Km+RPtKZ3Q0LH7pea3O4IcVe4xlBsneH8zynqhOrrheOfJLgw4 PqkSxoyN7Wub6Ygzi/ryg2vW65ALEDiHShmR9CF1EKSLFZ3D4/QIancsfZKCSdbfXzyb +vBxdLKW9QsQ1Dsagv6zl+HbeLQtJ0VqsP6Ac= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=dERt6o2UteVPOsj5iZQehtuP4vuXB7YNcVjFqprJn+c=; b=J99CSUxURXxYw0Q/5eoK4rkNc4q6mbvYq3hpDU6PtzqVxmUF+Z4e4Dsxme+GsIg7Pm 9NNfyNljn3owcmQzd4BfKZrtgzBLfXGpYRn9+7S1ZQ81sJ3cYagsoAXqcd8umLTgh+8k 0qx+pWSWcXXAcKViJNlrAcn2R/eidfdT1VYjLHqtFgqO67+kFfujbjQzSuMIoavkdpNp z4yVc8MY0Ej0/S8TgVaEfJc3Pn2EyUXd0Yh1lNMiHhC7I/GDEbTmZ8UdyaTYxszl7bIS B0RSaTgfRd5jIMurOWL+Q/iwjKLRrIEfBXFzDij2fVjYKAg+4FqCiTpvnukf05+4gP1q rq5w== X-Gm-Message-State: AOAM531mDKPHnzsui4ZCqjJKqAFyHyiqxp7pvA7ZVo9Jz/X+AkSWHkey gy1JT3Kcn5CimHOx/a/bfa8GEicljyJ8cXaw X-Google-Smtp-Source: ABdhPJyC1WOWo/aIE/qSy9+4zDtL4CUvm1ROFIdnTtvmLtCJgVXZac+djByCdt4q4CkDySSjmUQ2Kg== X-Received: by 2002:a65:6a0b:: with SMTP id m11mr21525359pgu.380.1626637012956; Sun, 18 Jul 2021 12:36:52 -0700 (PDT) Received: from localhost.swdvt.lab.broadcom.net ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id 22sm16743648pfo.80.2021.07.18.12.36.52 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sun, 18 Jul 2021 12:36:52 -0700 (PDT) From: Michael Chan To: davem@davemloft.net Cc: netdev@vger.kernel.org, kuba@kernel.org, gospo@broadcom.com Subject: [PATCH net 5/9] bnxt_en: fix error path of FW reset Date: Sun, 18 Jul 2021 15:36:29 -0400 Message-Id: <1626636993-31926-6-git-send-email-michael.chan@broadcom.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1626636993-31926-1-git-send-email-michael.chan@broadcom.com> References: <1626636993-31926-1-git-send-email-michael.chan@broadcom.com> Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Somnath Kotur When bnxt_open() fails in the firmware reset path, the driver needs to gracefully abort, but it is executing code that should be invoked only in the success path. Define a function to abort FW reset and consolidate all error paths to call this new function. Fixes: dab62e7c2de7 ("bnxt_en: Implement faster recovery for firmware fatal error.") Signed-off-by: Somnath Kotur Signed-off-by: Michael Chan --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 31 +++++++++++++++-------- 1 file changed, 21 insertions(+), 10 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 39908a3d9460..f2f1136fd492 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -11959,10 +11959,21 @@ static bool bnxt_fw_reset_timeout(struct bnxt *bp) (bp->fw_reset_max_dsecs * HZ / 10)); } +static void bnxt_fw_reset_abort(struct bnxt *bp, int rc) +{ + clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state); + if (bp->fw_reset_state != BNXT_FW_RESET_STATE_POLL_VF) { + bnxt_ulp_start(bp, rc); + bnxt_dl_health_status_update(bp, false); + } + bp->fw_reset_state = 0; + dev_close(bp->dev); +} + static void bnxt_fw_reset_task(struct work_struct *work) { struct bnxt *bp = container_of(work, struct bnxt, fw_reset_task.work); - int rc; + int rc = 0; if (!test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) { netdev_err(bp->dev, "bnxt_fw_reset_task() called when not in fw reset mode!\n"); @@ -11993,8 +12004,9 @@ static void bnxt_fw_reset_task(struct work_struct *work) bp->fw_reset_timestamp = jiffies; rtnl_lock(); if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) { + bnxt_fw_reset_abort(bp, rc); rtnl_unlock(); - goto fw_reset_abort; + return; } bnxt_fw_reset_close(bp); if (bp->fw_cap & BNXT_FW_CAP_ERR_RECOVER_RELOAD) { @@ -12043,6 +12055,7 @@ static void bnxt_fw_reset_task(struct work_struct *work) if (val == 0xffff) { if (bnxt_fw_reset_timeout(bp)) { netdev_err(bp->dev, "Firmware reset aborted, PCI config space invalid\n"); + rc = -ETIMEDOUT; goto fw_reset_abort; } bnxt_queue_fw_reset_work(bp, HZ / 1000); @@ -12052,6 +12065,7 @@ static void bnxt_fw_reset_task(struct work_struct *work) clear_bit(BNXT_STATE_FW_FATAL_COND, &bp->state); if (pci_enable_device(bp->pdev)) { netdev_err(bp->dev, "Cannot re-enable PCI device\n"); + rc = -ENODEV; goto fw_reset_abort; } pci_set_master(bp->pdev); @@ -12078,9 +12092,10 @@ static void bnxt_fw_reset_task(struct work_struct *work) } rc = bnxt_open(bp->dev); if (rc) { - netdev_err(bp->dev, "bnxt_open_nic() failed\n"); - clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state); - dev_close(bp->dev); + netdev_err(bp->dev, "bnxt_open() failed during FW reset\n"); + bnxt_fw_reset_abort(bp, rc); + rtnl_unlock(); + return; } bp->fw_reset_state = 0; @@ -12107,12 +12122,8 @@ static void bnxt_fw_reset_task(struct work_struct *work) netdev_err(bp->dev, "fw_health_status 0x%x\n", sts); } fw_reset_abort: - clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state); - if (bp->fw_reset_state != BNXT_FW_RESET_STATE_POLL_VF) - bnxt_dl_health_status_update(bp, false); - bp->fw_reset_state = 0; rtnl_lock(); - dev_close(bp->dev); + bnxt_fw_reset_abort(bp, rc); rtnl_unlock(); }