From 940913555793cdb7bdea314ee8f23b7d04d7424e Mon Sep 17 00:00:00 2001 From: Fam Zheng Date: Fri, 8 Jul 2016 05:20:19 +0200 Subject: [PATCH 08/11] scsi: Advertise limits by blocksize, not 512 RH-Author: Fam Zheng Message-id: <1467955219-6507-4-git-send-email-famz@redhat.com> Patchwork-id: 71070 O-Subject: [RHEV-7.3 qemu-kvm-rhev PATCH v2 3/3] scsi: Advertise limits by blocksize, not 512 Bugzilla: 1353816 RH-Acked-by: John Snow RH-Acked-by: Paolo Bonzini RH-Acked-by: Stefan Hajnoczi From: Eric Blake s->blocksize may be larger than 512, in which case our tweaks to max_xfer_len and opt_xfer_len must be scaled appropriately. CC: qemu-stable@nongnu.org Reported-by: Fam Zheng Signed-off-by: Eric Blake Reviewed-by: Fam Zheng Signed-off-by: Kevin Wolf (cherry picked from commit efaf4781a995aacd22b1dd521b14e4644bafae14) Signed-off-by: Fam Zheng Signed-off-by: Miroslav Rezanina --- hw/scsi/scsi-generic.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/hw/scsi/scsi-generic.c b/hw/scsi/scsi-generic.c index 71372a8..c4ba9a4 100644 --- a/hw/scsi/scsi-generic.c +++ b/hw/scsi/scsi-generic.c @@ -225,7 +225,8 @@ static void scsi_read_complete(void * opaque, int ret) if (s->type == TYPE_DISK && r->req.cmd.buf[0] == INQUIRY && r->req.cmd.buf[2] == 0xb0) { - uint32_t max_xfer_len = blk_get_max_transfer_length(s->conf.blk); + uint32_t max_xfer_len = blk_get_max_transfer_length(s->conf.blk) / + (s->blocksize / BDRV_SECTOR_SIZE); if (max_xfer_len) { stl_be_p(&r->buf[8], max_xfer_len); /* Also take care of the opt xfer len. */ -- 1.8.3.1