From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38018) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d3ODf-0003OZ-2o for qemu-devel@nongnu.org; Wed, 26 Apr 2017 10:47:04 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d3ODa-0002Oj-Ef for qemu-devel@nongnu.org; Wed, 26 Apr 2017 10:47:03 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:47394) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1d3ODa-0002Nv-67 for qemu-devel@nongnu.org; Wed, 26 Apr 2017 10:46:58 -0400 Received: from pps.filterd (m0098394.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id v3QEhtON085523 for ; Wed, 26 Apr 2017 10:46:57 -0400 Received: from e06smtp10.uk.ibm.com (e06smtp10.uk.ibm.com [195.75.94.106]) by mx0a-001b2d01.pphosted.com with ESMTP id 2a2wj306q1-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Wed, 26 Apr 2017 10:46:56 -0400 Received: from localhost by e06smtp10.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 26 Apr 2017 15:46:53 +0100 From: Eric Farman Date: Wed, 26 Apr 2017 16:46:43 +0200 In-Reply-To: <20170426144645.12476-1-farman@linux.vnet.ibm.com> References: <20170426144645.12476-1-farman@linux.vnet.ibm.com> Message-Id: <20170426144645.12476-4-farman@linux.vnet.ibm.com> Subject: [Qemu-devel] [RFC PATCH v1 3/5] pc-bios/s390-ccw: Move SCSI block factor to outer read List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Paolo Bonzini , "Michael S . Tsirkin" , Cornelia Huck , Christian Borntraeger , Alexander Graf , Eric Farman Simple refactoring so that the blk_factor adjustment is moved into virtio_scsi_read_many routine, in preparation for another change. Signed-off-by: Eric Farman --- pc-bios/s390-ccw/virtio-scsi.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/pc-bios/s390-ccw/virtio-scsi.c b/pc-bios/s390-ccw/virtio-scsi.c index 69b7a93..6d070e2 100644 --- a/pc-bios/s390-ccw/virtio-scsi.c +++ b/pc-bios/s390-ccw/virtio-scsi.c @@ -142,14 +142,13 @@ static bool scsi_report_luns(VDev *vdev, void *data, uint32_t data_size) } static bool scsi_read_10(VDev *vdev, - ulong sector, int sectors, void *data) + ulong sector, int sectors, void *data, + unsigned int data_size) { - int f = vdev->blk_factor; - unsigned int data_size = sectors * virtio_get_block_size() * f; ScsiCdbRead10 cdb = { .command = 0x28, - .lba = sector * f, - .xfer_length = sectors * f, + .lba = sector, + .xfer_length = sectors, }; VirtioCmd read_10[] = { { &req, sizeof(req), VRING_DESC_F_NEXT }, @@ -255,7 +254,10 @@ static void virtio_scsi_locate_device(VDev *vdev) int virtio_scsi_read_many(VDev *vdev, ulong sector, void *load_addr, int sec_num) { - if (!scsi_read_10(vdev, sector, sec_num, load_addr)) { + int f = vdev->blk_factor; + unsigned int data_size = sec_num * virtio_get_block_size() * f; + + if (!scsi_read_10(vdev, sector * f, sec_num * f, load_addr, data_size)) { virtio_scsi_verify_response(&resp, "virtio-scsi:read_many"); } -- 2.10.2