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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CB1CCC38161 for ; Mon, 18 Apr 2022 14:26:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345103AbiDRO2t (ORCPT ); Mon, 18 Apr 2022 10:28:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36944 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344268AbiDRORz (ORCPT ); Mon, 18 Apr 2022 10:17:55 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 19E483FBFB; Mon, 18 Apr 2022 06:13:45 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id EDDFC60AAD; Mon, 18 Apr 2022 13:13:10 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 08BF6C385A7; Mon, 18 Apr 2022 13:13:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1650287590; bh=t7Ek2bfIGx3XDB9l3vX26eAquej9L1q8mFbYIgiCgz8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UnoRbZ6D/52Zr6Y2TMjZaMH/HbijDlerncx9FcKm/i87me43l9gxmsDtO9WToXFMb 0hso9u4gyQ8HgT82fjYn5QWx9PzeLt36Haii4TyUXOVbj5TLcvgv84ZHFW2IK7fdD6 7NWTGA95L45/vU6yB7M2tMj5zM6UWyz16kuBXysA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Tyrel Datwyler , "Martin K. Petersen" , Sasha Levin Subject: [PATCH 4.9 207/218] scsi: ibmvscsis: Increase INITIAL_SRP_LIMIT to 1024 Date: Mon, 18 Apr 2022 14:14:33 +0200 Message-Id: <20220418121207.950378846@linuxfoundation.org> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20220418121158.636999985@linuxfoundation.org> References: <20220418121158.636999985@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Tyrel Datwyler [ Upstream commit 0bade8e53279157c7cc9dd95d573b7e82223d78a ] The adapter request_limit is hardcoded to be INITIAL_SRP_LIMIT which is currently an arbitrary value of 800. Increase this value to 1024 which better matches the characteristics of the typical IBMi Initiator that supports 32 LUNs and a queue depth of 32. This change also has the secondary benefit of being a power of two as required by the kfifo API. Since, Commit ab9bb6318b09 ("Partially revert "kfifo: fix kfifo_alloc() and kfifo_init()"") the size of IU pool for each target has been rounded down to 512 when attempting to kfifo_init() those pools with the current request_limit size of 800. Link: https://lore.kernel.org/r/20220322194443.678433-1-tyreld@linux.ibm.com Signed-off-by: Tyrel Datwyler Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c index 5ed28111c3c3..569b662e19e7 100644 --- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c +++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c @@ -43,7 +43,7 @@ #define IBMVSCSIS_VERSION "v0.2" -#define INITIAL_SRP_LIMIT 800 +#define INITIAL_SRP_LIMIT 1024 #define DEFAULT_MAX_SECTORS 256 #define MAX_TXU 1024 * 1024 -- 2.35.1