From mboxrd@z Thu Jan 1 00:00:00 1970 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=-10.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,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 2540FC43441 for ; Thu, 8 Nov 2018 22:33:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DA33220844 for ; Thu, 8 Nov 2018 22:33:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="D1OcbX5C" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DA33220844 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729664AbeKIILB (ORCPT ); Fri, 9 Nov 2018 03:11:01 -0500 Received: from mail.kernel.org ([198.145.29.99]:55640 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729557AbeKIHh0 (ORCPT ); Fri, 9 Nov 2018 02:37:26 -0500 Received: from localhost (unknown [208.72.13.198]) (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 0609121019; Thu, 8 Nov 2018 21:59:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1541714398; bh=2l+OfjfAIZ3NkkUjMEBlJvJny7nRRdqvuOq3tQOw/pU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=D1OcbX5CXr4T67o/OmM7Ti3ZS1KMmXOtI/It0HJRRWtQ8ROuxL8eBfC1BQMz32Rze 89AOuyxv0GoAvpSEC+PYcwa7y4RlZ51iNok/fcJjmQQYzUX9+OOUcpxrpwlFwu6F4t lxJQMcoiVnE4OHQ48QZ+VY52n8LW6IztI3w9PKVc= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Emil Tantilov , Phil Schmitt , Jeff Kirsher , Sasha Levin Subject: [PATCH 4.4 057/114] ixgbe: fix RSS limit for X550 Date: Thu, 8 Nov 2018 13:51:12 -0800 Message-Id: <20181108215106.271459865@linuxfoundation.org> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181108215059.051093652@linuxfoundation.org> References: <20181108215059.051093652@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ [ Upstream commit e9ee3238f8a480bbca58e51d02a93628d7c1f265 ] X550 allows for up to 64 RSS queues, but the driver can have max of 63 (-1 MSIX vector for link). On systems with >= 64 CPUs the driver will set the redirection table for all 64 queues which will result in packets being dropped. Signed-off-by: Emil Tantilov Tested-by: Phil Schmitt Signed-off-by: Jeff Kirsher Signed-off-by: Sasha Levin --- drivers/net/ethernet/intel/ixgbe/ixgbe.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h index 1d2174526a4c..18e4e4a69262 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h @@ -312,7 +312,7 @@ enum ixgbe_ring_f_enum { }; #define IXGBE_MAX_RSS_INDICES 16 -#define IXGBE_MAX_RSS_INDICES_X550 64 +#define IXGBE_MAX_RSS_INDICES_X550 63 #define IXGBE_MAX_VMDQ_INDICES 64 #define IXGBE_MAX_FDIR_INDICES 63 /* based on q_vector limit */ #define IXGBE_MAX_FCOE_INDICES 8 -- 2.17.1