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[Qemu-devel] [PATCH 1/7] iSCSI: We need to support SG_IO also from iscsi
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH 1/7] iSCSI: We need to support SG_IO also from iscsi_ioctl() |
Date: |
Fri, 21 Sep 2012 16:52:43 +0200 |
From: Ronnie Sahlberg <address@hidden>
We need to support SG_IO from the synchronous iscsi_ioctl() since
scsi-block uses this to do an INQ to the device to discover its properties
This patch makes scsi-block work with iscsi.
Signed-off-by: Ronnie Sahlberg <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
---
block/iscsi.c | 17 +++++++++++++++++
1 file modificato, 17 inserzioni(+)
diff --git a/block/iscsi.c b/block/iscsi.c
index 0b96165..ea16609 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -628,9 +628,17 @@ static BlockDriverAIOCB *iscsi_aio_ioctl(BlockDriverState
*bs,
return &acb->common;
}
+
+static void ioctl_cb(void *opaque, int status)
+{
+ int *p_status = opaque;
+ *p_status = status;
+}
+
static int iscsi_ioctl(BlockDriverState *bs, unsigned long int req, void *buf)
{
IscsiLun *iscsilun = bs->opaque;
+ int status;
switch (req) {
case SG_GET_VERSION_NUM:
@@ -639,6 +647,15 @@ static int iscsi_ioctl(BlockDriverState *bs, unsigned long
int req, void *buf)
case SG_GET_SCSI_ID:
((struct sg_scsi_id *)buf)->scsi_type = iscsilun->type;
break;
+ case SG_IO:
+ status = -EINPROGRESS;
+ iscsi_aio_ioctl(bs, req, buf, ioctl_cb, &status);
+
+ while (status == -EINPROGRESS) {
+ qemu_aio_wait();
+ }
+
+ return 0;
default:
return -1;
}
--
1.7.12
- [Qemu-devel] [PULL 0/7] SCSI patches for 2012-09-21, Paolo Bonzini, 2012/09/21
- [Qemu-devel] [PATCH 2/7] iSCSI: We dont need to explicitely call qemu_notify_event() any more, Paolo Bonzini, 2012/09/21
- [Qemu-devel] [PATCH 3/7] scsi-disk: introduce check_lba_range, Paolo Bonzini, 2012/09/21
- [Qemu-devel] [PATCH 4/7] scsi-disk: fix check for out-of-range LBA, Paolo Bonzini, 2012/09/21
- [Qemu-devel] [PATCH 1/7] iSCSI: We need to support SG_IO also from iscsi_ioctl(),
Paolo Bonzini <=
- [Qemu-devel] [PATCH 6/7] scsi-disk: use scsi_data_cdb_length, Paolo Bonzini, 2012/09/21
- [Qemu-devel] [PATCH 5/7] scsi: introduce scsi_cdb_length and scsi_data_cdb_length, Paolo Bonzini, 2012/09/21
- [Qemu-devel] [PATCH 7/7] SCSI: Standard INQUIRY data should report HiSup flag as set., Paolo Bonzini, 2012/09/21
- Re: [Qemu-devel] [PULL 0/7] SCSI patches for 2012-09-21, Anthony Liguori, 2012/09/25