From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Nicholas A. Bellinger" Subject: [PATCH 1/2] [scsi-bus]: Add PR-OUT and PR-IN case for SCSIRequest xfer and xfer_mode setup Date: Sun, 30 May 2010 18:43:01 -0700 Message-ID: <1275270181-10992-1-git-send-email-nab@linux-iscsi.org> Cc: Christoph Hellwig , Hannes Reinecke , Paul Brook , kvm-devel , qemu-devel , Nicholas Bellinger To: Kevin Wolf , Gerd Hoffmann Return-path: Received: from smtp127.sbc.mail.sp1.yahoo.com ([69.147.65.186]:46996 "HELO smtp127.sbc.mail.sp1.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1755298Ab0EaBmo (ORCPT ); Sun, 30 May 2010 21:42:44 -0400 Sender: kvm-owner@vger.kernel.org List-ID: From: Nicholas Bellinger This patch updates hw/scsi-bus.c to add PERSISTENT_RESERVE_OUT and PERSISTENT_RESERVE_IN case in scsi_req_length() to extra the incoming buffer length into SCSIRequest->cmd.xfer, and adds a second PERSISTENT_RESERVE_OUT case in scsi_req_xfer_mode() in order to properly set SCSI_XFER_TO_DEV for WRITE data. Tested with Linux KVM guests and Megasas 8708EM2 HBA emulation and TCM_Loop target ports. Signed-off-by: Nicholas A. Bellinger --- hw/scsi-bus.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/hw/scsi-bus.c b/hw/scsi-bus.c index b8e4b71..75ec74e 100644 --- a/hw/scsi-bus.c +++ b/hw/scsi-bus.c @@ -325,6 +325,10 @@ static int scsi_req_length(SCSIRequest *req, uint8_t *cmd) case INQUIRY: req->cmd.xfer = cmd[4] | (cmd[3] << 8); break; + case PERSISTENT_RESERVE_OUT: + case PERSISTENT_RESERVE_IN: + req->cmd.xfer = cmd[8] | (cmd[7] << 8); + break; } return 0; } @@ -389,6 +393,7 @@ static void scsi_req_xfer_mode(SCSIRequest *req) case MEDIUM_SCAN: case SEND_VOLUME_TAG: case WRITE_LONG_2: + case PERSISTENT_RESERVE_OUT: req->cmd.mode = SCSI_XFER_TO_DEV; break; default: -- 1.5.6.5