[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Bug 1893634] Re: blk_get_max_transfer() works only with sg
From: |
Launchpad Bug Tracker |
Subject: |
[Bug 1893634] Re: blk_get_max_transfer() works only with sg |
Date: |
Thu, 08 Jul 2021 04:17:29 -0000 |
[Expired for QEMU because there has been no activity for 60 days.]
** Changed in: qemu
Status: Incomplete => Expired
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1893634
Title:
blk_get_max_transfer() works only with sg
Status in QEMU:
Expired
Bug description:
blk_get_max_transfer() is supposed to be able to get the max_sectors
queue limit of the scsi device on the host side and is used in both
scsi-generic.c (for scsi-generic and scsi-block) and scsi-disk.c (for
scsi-hd) to set/change the max_xfer_len (and opt_xfer_len in the case
of scsi-generic.c).
However, it only works with the sg driver in doing so. It cannot get
the queue limit with the sd driver and simply returns MAX_INT.
qemu version 5.1.0
kernel version 5.8.5
Btw, is there a particular reason that it doesn't MIN_NON_ZERO against
the original max_xfer_len:
https://github.com/qemu/qemu/blob/v5.1.0/hw/scsi/scsi-generic.c#L172?
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1893634/+subscriptions
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- [Bug 1893634] Re: blk_get_max_transfer() works only with sg,
Launchpad Bug Tracker <=