From patchwork Mon Jun 1 17:53:02 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 225082 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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY, 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 8169CC433DF for ; Mon, 1 Jun 2020 18:08:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 57BB52068D for ; Mon, 1 Jun 2020 18:08:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591034905; bh=tftKU4F3tosnPC/SGYFbVSw+AXCzOi+KqBNrkdOQgyc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=E6Jd4PUemvx/nq2fBj/8G6eushpmgFCuWqtqq1c6iCcG4/HckSZ95Xz6MhwLv5V5C UxDRaeIaCstnb6fdKBtapyH1PCySeVWv1E9/r/TJYVup/kFOaOXur979OYXqycle62 E5tNxoZfklvpc/tQEg9dUQ4fwKigu2EgfNiHx4Uk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730725AbgFASIY (ORCPT ); Mon, 1 Jun 2020 14:08:24 -0400 Received: from mail.kernel.org ([198.145.29.99]:54522 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729995AbgFASIY (ORCPT ); Mon, 1 Jun 2020 14:08:24 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 260DB20872; Mon, 1 Jun 2020 18:08:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591034903; bh=tftKU4F3tosnPC/SGYFbVSw+AXCzOi+KqBNrkdOQgyc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qQPKy1erLqsp0Ck6Faa9JgoDvCi6nwxSoD5n1XZnU51KYXTeLZf3RnZFlAY711dlV +w37CPUllFD8kJxUyTVu+5BBVGBYBn1vh7CFli4l8hP4ybghFdnSaDg+LCGA02sW7t JKFYilLU2uNlcPtWaiiG6RNsZxu0WBnlvBXXJbiU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Moshe Shemesh , Tariq Toukan , Saeed Mahameed Subject: [PATCH 5.4 024/142] net/mlx5e: Update netdev txq on completions during closure Date: Mon, 1 Jun 2020 19:53:02 +0200 Message-Id: <20200601174040.326271561@linuxfoundation.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200601174037.904070960@linuxfoundation.org> References: <20200601174037.904070960@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Moshe Shemesh [ Upstream commit 5e911e2c06bd8c17df29147a5e2d4b17fafda024 ] On sq closure when we free its descriptors, we should also update netdev txq on completions which would not arrive. Otherwise if we reopen sqs and attach them back, for example on fw fatal recovery flow, we may get tx timeout. Fixes: 29429f3300a3 ("net/mlx5e: Timeout if SQ doesn't flush during close") Signed-off-by: Moshe Shemesh Reviewed-by: Tariq Toukan Signed-off-by: Saeed Mahameed Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/mellanox/mlx5/core/en_tx.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c @@ -537,10 +537,9 @@ bool mlx5e_poll_tx_cq(struct mlx5e_cq *c void mlx5e_free_txqsq_descs(struct mlx5e_txqsq *sq) { struct mlx5e_tx_wqe_info *wi; + u32 dma_fifo_cc, nbytes = 0; + u16 ci, sqcc, npkts = 0; struct sk_buff *skb; - u32 dma_fifo_cc; - u16 sqcc; - u16 ci; int i; sqcc = sq->cc; @@ -565,11 +564,15 @@ void mlx5e_free_txqsq_descs(struct mlx5e } dev_kfree_skb_any(skb); + npkts++; + nbytes += wi->num_bytes; sqcc += wi->num_wqebbs; } sq->dma_fifo_cc = dma_fifo_cc; sq->cc = sqcc; + + netdev_tx_completed_queue(sq->txq, npkts, nbytes); } #ifdef CONFIG_MLX5_CORE_IPOIB