From patchwork Thu Dec 10 19:25:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 11967509 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=-13.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 AD389C4361B for ; Fri, 11 Dec 2020 08:17:03 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 604BF23E56 for ; Fri, 11 Dec 2020 08:17:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 604BF23E56 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linutronix.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 962916ECB6; Fri, 11 Dec 2020 08:16:23 +0000 (UTC) Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) by gabe.freedesktop.org (Postfix) with ESMTPS id E59636EB40; Thu, 10 Dec 2020 19:42:44 +0000 (UTC) Message-Id: <20201210194044.876342330@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1607629363; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: references:references; bh=55TI7XJ63kr4B6KmttDRntIShtWEHQxTpDKUCCh7MMo=; b=DfHk2d4rsQCFRfxdAyxTdTyPSpwg7z0Sncg8I+9KfdVXncJCTb3XmwedEonMAdLY68Ijgw OqDECUKDGXVJ2e3I3uLB0GGar87pY3Yal2dFSEkuxLqu7+aFvat4rMB4RZqE4KrUhBk+R3 gBmBzJxqdxsXIuyqJJAGw8Y30tyckVylqCLBgGNvi3gs7yKm4ZK17JvWGG44C/46sWyxXQ Ej9ZSopIvaJHIfeR+E9sAafcWAL7WpVPwj+5hDUZlquKEkpvZ61FA9B4DGvqfEnbmzwFaO eXj8bg+XHOWux9C1y9WQO9G2xEkTNlYuLikm/MUzYuUvhCxBqpZY2adGCKTIQA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1607629363; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: references:references; bh=55TI7XJ63kr4B6KmttDRntIShtWEHQxTpDKUCCh7MMo=; b=eULJnI7rz5dW6ohKtM1f3ZResXMDuJkA8Ky9aCIj2PXNOKCWiuy+1w37KELJ76tMak6jIr Gp7eoIGkDj0U4pDA== Date: Thu, 10 Dec 2020 20:25:59 +0100 From: Thomas Gleixner To: LKML Subject: [patch 23/30] net/mlx5: Use effective interrupt affinity References: <20201210192536.118432146@linutronix.de> MIME-Version: 1.0 X-Mailman-Approved-At: Fri, 11 Dec 2020 08:16:08 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Karthikeyan Mitran , Peter Zijlstra , Catalin Marinas , dri-devel@lists.freedesktop.org, Chris Wilson , "James E.J. Bottomley" , afzal mohammed , Michal Simek , linux-s390@vger.kernel.org, Lorenzo Pieralisi , Dave Jiang , xen-devel@lists.xenproject.org, Leon Romanovsky , linux-rdma@vger.kernel.org, Marc Zyngier , Helge Deller , Russell King , Christian Borntraeger , linux-pci@vger.kernel.org, Jakub Kicinski , intel-gfx@lists.freedesktop.org, Wambui Karuga , Allen Hubbe , Juergen Gross , Will Deacon , Tvrtko Ursulin , Heiko Carstens , Jon Mason , linux-gpio@vger.kernel.org, Stefano Stabellini , Rodrigo Vivi , Bjorn Helgaas , Lee Jones , linux-arm-kernel@lists.infradead.org, Boris Ostrovsky , David Airlie , linux-parisc@vger.kernel.org, netdev@vger.kernel.org, Hou Zhiqiang , Tariq Toukan , Pankaj Bharadiya , linux-ntb@googlegroups.com, Saeed Mahameed , "David S. Miller" Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Using the interrupt affinity mask for checking locality is not really working well on architectures which support effective affinity masks. The affinity mask is either the system wide default or set by user space, but the architecture can or even must reduce the mask to the effective set, which means that checking the affinity mask itself does not really tell about the actual target CPUs. Signed-off-by: Thomas Gleixner Cc: Saeed Mahameed Cc: Leon Romanovsky Cc: "David S. Miller" Cc: Jakub Kicinski Cc: netdev@vger.kernel.org Cc: linux-rdma@vger.kernel.org Reviewed-by: Tariq Toukan Acked-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -1998,7 +1998,7 @@ static int mlx5e_open_channel(struct mlx c->num_tc = params->num_tc; c->xdp = !!params->xdp_prog; c->stats = &priv->channel_stats[ix].ch; - c->aff_mask = irq_get_affinity_mask(irq); + c->aff_mask = irq_get_effective_affinity_mask(irq); c->lag_port = mlx5e_enumerate_lag_port(priv->mdev, ix); netif_napi_add(netdev, &c->napi, mlx5e_napi_poll, 64);