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=-9.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,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 538ABECDE46 for ; Thu, 25 Oct 2018 14:18:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 096AE20848 for ; Thu, 25 Oct 2018 14:18:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="avg8XtLc" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 096AE20848 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.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 S1729956AbeJYWvH (ORCPT ); Thu, 25 Oct 2018 18:51:07 -0400 Received: from mail.kernel.org ([198.145.29.99]:60900 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729938AbeJYWvG (ORCPT ); Thu, 25 Oct 2018 18:51:06 -0400 Received: from sasha-vm.mshome.net (unknown [167.98.65.38]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id CCC0B2085A; Thu, 25 Oct 2018 14:18:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1540477089; bh=Fp2Bw3X6/3nzHSMJ2ZTAM6CPL3xDzDyudNmBshgP+7c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=avg8XtLctCTsbiEWHpnkYhliG0eEGZM67dGPEmi3y/S1qmWCMza267M9E7Q6TqQE0 wBOENLp/dUXv7frC0JhDWbAT3M+OO4yidSNleF5pQaIwPA9l+tkVj868r70a7q6r+R 1uJtMNcjvGUBUi89ZgZ2XVjS9kW5inG6PF9FYF/Y= From: Sasha Levin To: stable@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Emil Tantilov , Jeff Kirsher , Sasha Levin Subject: [PATCH AUTOSEL 4.4 39/65] ixgbe: fix RSS limit for X550 Date: Thu, 25 Oct 2018 10:16:39 -0400 Message-Id: <20181025141705.213937-39-sashal@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20181025141705.213937-1-sashal@kernel.org> References: <20181025141705.213937-1-sashal@kernel.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Emil Tantilov [ 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