From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751935Ab1ABHWI (ORCPT ); Sun, 2 Jan 2011 02:22:08 -0500 Received: from mail.windriver.com ([147.11.1.11]:34393 "EHLO mail.windriver.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752181Ab1ABHV7 (ORCPT ); Sun, 2 Jan 2011 02:21:59 -0500 From: Paul Gortmaker To: stable@kernel.org, linux-kernel@vger.kernel.org Cc: stable-review@kernel.org, Hank Janssen , Haiyang Zhang , Greg Kroah-Hartman , Paul Gortmaker Subject: [34-longterm 040/260] staging: hv: Increased storvsc ringbuffer and max_io_requests Date: Sun, 2 Jan 2011 02:15:36 -0500 Message-Id: <1293952756-15010-41-git-send-email-paul.gortmaker@windriver.com> X-Mailer: git-send-email 1.7.3.3 In-Reply-To: <1293952756-15010-1-git-send-email-paul.gortmaker@windriver.com> References: <1293952756-15010-1-git-send-email-paul.gortmaker@windriver.com> X-OriginalArrivalTime: 02 Jan 2011 07:20:50.0241 (UTC) FILETIME=[9530FB10:01CBAA4D] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Hank Janssen commit 15dd1c9f53b31cdc84b8072a88c23fa09527c596 upstream. Increased storvsc ringbuffer and max_io_requests. This now more closely mimics the numbers on Hyper-V. And will allow more IO requests to take place for the SCSI driver. Max_IO is set to double from what it was before, Hyper-V allows it and we have had appliance builder requests to see if it was a problem to increase the number. Ringbuffer size for storvsc is now increased because I have seen A few buffer problems on extremely busy systems. They were Set pretty low before. And since max_io_requests is increased I Really needed to increase the buffer as well. Signed-off-by: Hank Janssen Signed-off-by: Haiyang Zhang Signed-off-by: Greg Kroah-Hartman Signed-off-by: Paul Gortmaker --- drivers/staging/hv/StorVscApi.h | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/staging/hv/StorVscApi.h b/drivers/staging/hv/StorVscApi.h index 126a858..aad90bd 100644 --- a/drivers/staging/hv/StorVscApi.h +++ b/drivers/staging/hv/StorVscApi.h @@ -28,10 +28,10 @@ #include "VmbusApi.h" /* Defines */ -#define STORVSC_RING_BUFFER_SIZE (10*PAGE_SIZE) +#define STORVSC_RING_BUFFER_SIZE (20*PAGE_SIZE) #define BLKVSC_RING_BUFFER_SIZE (20*PAGE_SIZE) -#define STORVSC_MAX_IO_REQUESTS 64 +#define STORVSC_MAX_IO_REQUESTS 128 /* * In Hyper-V, each port/path/target maps to 1 scsi host adapter. In -- 1.7.3.3