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: 11966195 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 9138AC4361B for ; Thu, 10 Dec 2020 19:51:16 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 5835122EBF for ; Thu, 10 Dec 2020 19:51:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5835122EBF Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linutronix.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.49779.88108 (Exim 4.92) (envelope-from ) id 1knRxz-0001tt-Nb; Thu, 10 Dec 2020 19:51:07 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 49779.88108; Thu, 10 Dec 2020 19:51:07 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1knRxz-0001tW-HF; Thu, 10 Dec 2020 19:51:07 +0000 Received: by outflank-mailman (input) for mailman id 49779; Thu, 10 Dec 2020 19:51:06 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1knRqT-0007OY-EY for xen-devel@lists.xenproject.org; Thu, 10 Dec 2020 19:43:21 +0000 Received: from galois.linutronix.de (unknown [193.142.43.55]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 6cc394ac-31c7-4a10-9ba6-c8a1e38799fb; Thu, 10 Dec 2020 19:42:42 +0000 (UTC) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 6cc394ac-31c7-4a10-9ba6-c8a1e38799fb 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 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 */