From patchwork Thu Dec 10 19:25:57 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 342658 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=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 69096C4361B for ; Thu, 10 Dec 2020 20:03:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 20AA223B31 for ; Thu, 10 Dec 2020 20:03:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404500AbgLJUDO (ORCPT ); Thu, 10 Dec 2020 15:03:14 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:57392 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390176AbgLJTnY (ORCPT ); Thu, 10 Dec 2020 14:43:24 -0500 Message-Id: <20201210194044.672935978@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1607629361; 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=Qj+nUJLINsvJ1wGGRtokQbSqazbntoaovZZiHCUfEoU=; b=mj3Kocu4reYCYLMxNnXCB7pRMj/V2SipP9aFrWWSpDZJXbRGUx/etWSEc4UA9axZe8vH6Z zCNVDaK1BEFqY4IWswwKyY8R7IgAyKxoeqPwRK9IXNNmGiGmnhY15xlempvvXuPFw2/rOc mTCNzl+Tvzsv8H1Zumi6u4b7ahs/w0J8EI2jeDxL0Y5ZADiAONcn7tXXZuRD+mnMyLrQkH 8jP8OkOSyfio3wKvjr3Z/OVEvqX5ZlAghchZfn24t0pny2f/12ifma3CZVk+AVM0PtaOxp ZDpdmrDdGhcDUTfi8/G7SVOrzhh/vhKhIeACLrs9VfJAm1rl5JDinUE3lR6YsQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1607629361; 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=Qj+nUJLINsvJ1wGGRtokQbSqazbntoaovZZiHCUfEoU=; b=BJ2Ps/crskKu+hAqmkYsokffZfoswWJHgtK94U0YlOuWVRLji6xjfgt0Ui2ooTzFtjd00H sqLSJBfAAw+mcaDw== Date: Thu, 10 Dec 2020 20:25:57 +0100 From: Thomas Gleixner To: LKML Cc: Peter Zijlstra , Marc Zyngier , Tariq Toukan , "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 , Saeed Mahameed , Leon Romanovsky , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , xen-devel@lists.xenproject.org Subject: [patch 21/30] net/mlx4: 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: netdev@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: Tariq Toukan Cc: "David S. Miller" Cc: Jakub Kicinski Cc: netdev@vger.kernel.org Cc: linux-rdma@vger.kernel.org Reviewed-by: Tariq Toukan --- drivers/net/ethernet/mellanox/mlx4/en_cq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/ethernet/mellanox/mlx4/en_cq.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_cq.c @@ -117,7 +117,7 @@ int mlx4_en_activate_cq(struct mlx4_en_p assigned_eq = true; } irq = mlx4_eq_get_irq(mdev->dev, cq->vector); - cq->aff_mask = irq_get_affinity_mask(irq); + cq->aff_mask = irq_get_effective_affinity_mask(irq); } else { /* For TX we use the same irq per ring we assigned for the RX */