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: 11966303 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=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 5EA69C433FE for ; Thu, 10 Dec 2020 19:57:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1758A22571 for ; Thu, 10 Dec 2020 19:57:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404325AbgLJTni (ORCPT ); Thu, 10 Dec 2020 14:43:38 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:57516 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2393542AbgLJTn0 (ORCPT ); Thu, 10 Dec 2020 14:43:26 -0500 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 Cc: Peter Zijlstra , Marc Zyngier , Saeed Mahameed , Leon Romanovsky , "David S. Miller" , Jakub Kicinski , netdev@vger.kernel.org, linux-rdma@vger.kernel.org, "James E.J. Bottomley" , Helge Deller , afzal mohammed , linux-parisc@vger.kernel.org, Russell King , linux-arm-kernel@lists.infradead.org, Mark Rutland , Catalin Marinas , Will Deacon , Christian Borntraeger , Heiko Carstens , linux-s390@vger.kernel.org, Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , David Airlie , Daniel Vetter , Pankaj Bharadiya , Chris Wilson , Wambui Karuga , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, Tvrtko Ursulin , Linus Walleij , linux-gpio@vger.kernel.org, Lee Jones , Jon Mason , Dave Jiang , Allen Hubbe , linux-ntb@googlegroups.com, Lorenzo Pieralisi , Rob Herring , Bjorn Helgaas , Michal Simek , linux-pci@vger.kernel.org, Karthikeyan Mitran , Hou Zhiqiang , Tariq Toukan , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , xen-devel@lists.xenproject.org Subject: [patch 23/30] net/mlx5: Use effective interrupt affinity References: <20201210192536.118432146@linutronix.de> MIME-Version: 1.0 Content-transfer-encoding: 8-bit Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org 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);