From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932179Ab1IAV53 (ORCPT ); Thu, 1 Sep 2011 17:57:29 -0400 Received: from p3plsmtps2ded01.prod.phx3.secureserver.net ([208.109.80.58]:50130 "HELO p3plsmtps2ded01-02.prod.phx3.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S932109Ab1IAV52 (ORCPT ); Thu, 1 Sep 2011 17:57:28 -0400 X-Greylist: delayed 400 seconds by postgrey-1.27 at vger.kernel.org; Thu, 01 Sep 2011 17:57:28 EDT From: Mike Sterling To: haiyangz@microsoft.com, hjanssen@microsoft.com, kys@microsoft.com, gregkh@suse.de, linux-kernel@vger.kernel.org, devel@linuxdriverproject.org, virtualization@lists.osdl.org Cc: Mike Sterling Subject: [PATCH 1/1] staging: hv: Add support for >2 TB LUN in storage driver. Date: Thu, 1 Sep 2011 15:11:09 -0700 Message-Id: <1314915069-1796-1-git-send-email-mike.sterling@microsoft.com> X-Mailer: git-send-email 1.7.4.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org If a LUN larger than 2 TB is attached to a Linux VM on Hyper-V, we currently report a maximum size of 2 TB. This patch resolves the issue in hv_storvsc. Thanks to Robert Scheck for reporting the issue. Reported-by: Robert Scheck Signed-off-by: Mike Sterling Signed-off-by: K.Y. Srinivasan Signed-off-by: Haiyang Zhang --- drivers/staging/hv/hyperv_storage.h | 1 + drivers/staging/hv/storvsc_drv.c | 2 ++ 2 files changed, 3 insertions(+), 0 deletions(-) diff --git a/drivers/staging/hv/hyperv_storage.h b/drivers/staging/hv/hyperv_storage.h index a01f9a0..5af82f4 100644 --- a/drivers/staging/hv/hyperv_storage.h +++ b/drivers/staging/hv/hyperv_storage.h @@ -218,6 +218,7 @@ struct vstor_packet { #define STORVSC_MAX_LUNS_PER_TARGET 64 #define STORVSC_MAX_TARGETS 1 #define STORVSC_MAX_CHANNELS 1 +#define STORVSC_MAX_CMD_LEN 16 struct hv_storvsc_request; diff --git a/drivers/staging/hv/storvsc_drv.c b/drivers/staging/hv/storvsc_drv.c index 7effaf3..26983ac 100644 --- a/drivers/staging/hv/storvsc_drv.c +++ b/drivers/staging/hv/storvsc_drv.c @@ -701,6 +701,8 @@ static int storvsc_probe(struct hv_device *device) host->max_id = STORVSC_MAX_TARGETS; /* max # of channels */ host->max_channel = STORVSC_MAX_CHANNELS - 1; + /* max cmd length */ + host->max_cmd_len = STORVSC_MAX_CMD_LEN; /* Register the HBA and start the scsi bus scan */ ret = scsi_add_host(host, &device->device); -- 1.7.1