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[Qemu-devel] [PATCH] send readcapacity10 when readcapacity16 failed
From: |
Zhu Lingshan |
Subject: |
[Qemu-devel] [PATCH] send readcapacity10 when readcapacity16 failed |
Date: |
Tue, 29 Dec 2015 11:32:14 +0800 |
When play with Dell MD3000 target, for sure it
is a TYPE_DISK, but readcapacity16 would fail.
Then we find that readcapacity10 succeeded. It
looks like the target just support readcapacity10
even through it is a TYPE_DISK or have some
TYPE_ROM characteristics.
This patch can give a chance to send
readcapacity16 when readcapacity10 failed.
This patch is not harmful to original pathes
Signed-off-by: Zhu Lingshan <address@hidden>
---
block/iscsi.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/block/iscsi.c b/block/iscsi.c
index bd1f1bf..c8d167f 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -1243,8 +1243,9 @@ static void iscsi_readcapacity_sync(IscsiLun *iscsilun,
Error **errp)
iscsilun->lbprz = !!rc16->lbprz;
iscsilun->use_16_for_rw = (rc16->returned_lba >
0xffffffff);
}
+ break;
}
- break;
+ //fall through to try readcapacity10 instead
case TYPE_ROM:
task = iscsi_readcapacity10_sync(iscsilun->iscsi, iscsilun->lun,
0, 0);
if (task != NULL && task->status == SCSI_STATUS_GOOD) {
--
2.6.2
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