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 69700C41535 for ; Mon, 18 Apr 2022 13:28:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243159AbiDRN2w (ORCPT ); Mon, 18 Apr 2022 09:28:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41108 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240964AbiDRNFU (ORCPT ); Mon, 18 Apr 2022 09:05:20 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 83A0E340CF; Mon, 18 Apr 2022 05:45:52 -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 2273B6101A; Mon, 18 Apr 2022 12:45:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1B3A0C385A7; Mon, 18 Apr 2022 12:45:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1650285951; bh=pJ2M5/+qEwvfUYmQmLNTCFIGmh9gFKayrlgbg4eF8lo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tegn9rZei41rXMEGFzs9DSo0y4fYGSyVbR5o0i0oUFRk6VewVQCQIDt0H4MQrGgzh TjVxpG4vMjqbfHYWS5KZ8MxmLd56KWfj9ulXaHSQBBTgqlCRHGH3aVT4RqOBg+ZjeN YS+lap8FgK4XJlfVEzuvKEVeIx/kUNIqA2zVx48s= 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 4.19 15/32] scsi: ibmvscsis: Increase INITIAL_SRP_LIMIT to 1024 Date: Mon, 18 Apr 2022 14:13:55 +0200 Message-Id: <20220418121127.572901104@linuxfoundation.org> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20220418121127.127656835@linuxfoundation.org> References: <20220418121127.127656835@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 f42a619198c4..79bc6c3bfa6e 100644 --- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c +++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c @@ -44,7 +44,7 @@ #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