From patchwork Mon Mar 1 16:05:32 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 389621 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=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, 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 4EB66C433E6 for ; Mon, 1 Mar 2021 18:40:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0F64D6146D for ; Mon, 1 Mar 2021 18:40:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236515AbhCASjv (ORCPT ); Mon, 1 Mar 2021 13:39:51 -0500 Received: from mail.kernel.org ([198.145.29.99]:44972 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239915AbhCASbj (ORCPT ); Mon, 1 Mar 2021 13:31:39 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id AA6EE652FC; Mon, 1 Mar 2021 17:41:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1614620472; bh=WByou/aDB0FXbiuLuZKDk4F5KwCaITLr2hXUKqyHEGk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=duXq19kLfNxRrKkQN6LB/UyTcir8mfr6rmOtTC9mXU3VGyzQqZ5JLKH1YCZ/Or9pt IG0MXexkMVQhUjlcTFQ8+TIzIjzDLOEctDHJ/GBloFxVYMtfNKy6U85QGpMyFlreJq W5uhcMv7RBHaUlRQV7TmA+fy9UrrnTm7rOaIr1mM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dany Madden , "David S. Miller" , Sasha Levin Subject: [PATCH 5.11 164/775] ibmvnic: change IBMVNIC_MAX_IND_DESCS to 16 Date: Mon, 1 Mar 2021 17:05:32 +0100 Message-Id: <20210301161209.744906740@linuxfoundation.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210301161201.679371205@linuxfoundation.org> References: <20210301161201.679371205@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Dany Madden [ Upstream commit a6f2fe5f108c11ff8023d07f9c00cc3c9c3203b8 ] The supported indirect subcrq entries on Power8 is 16. Power9 supports 128. Redefined this value to 16 to minimize the driver from having to reset when migrating between Power9 and Power8. In our rx/tx performance testing, we found no performance difference between 16 and 128 at this time. Fixes: f019fb6392e5 ("ibmvnic: Introduce indirect subordinate Command Response Queue buffer") Signed-off-by: Dany Madden Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/ibm/ibmvnic.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/ibm/ibmvnic.h b/drivers/net/ethernet/ibm/ibmvnic.h index 3cccbba703658..72fea3b1c87d9 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.h +++ b/drivers/net/ethernet/ibm/ibmvnic.h @@ -31,7 +31,7 @@ #define IBMVNIC_BUFFS_PER_POOL 100 #define IBMVNIC_MAX_QUEUES 16 #define IBMVNIC_MAX_QUEUE_SZ 4096 -#define IBMVNIC_MAX_IND_DESCS 128 +#define IBMVNIC_MAX_IND_DESCS 16 #define IBMVNIC_IND_ARR_SZ (IBMVNIC_MAX_IND_DESCS * 32) #define IBMVNIC_TSO_BUF_SZ 65536