On 02/18/2010 09:02 AM, ram krishnan wrote:
On Tue, Feb 16, 2010 at 8:44 AM, Mike Christie<micha...@cs.wisc.edu> wrote:
On 02/14/2010 01:04 AM, ramki wrote:
Hi,
I am trying some experiments with the open iscsi sg interface.
Does the open-iscsi sg interface support all the SCSI commands -
including R2T responses for writes ?
What do you mean by the open-iscsi sg interface? Do you mean the sg device
that is accessed through /dev/sg or doing SGIO to the block device? If so
then I think it supports all scsi commands. It at least supports all scsi
commands that you can do with that interface. I do not think you can do
commands that require bidi. For that you have to use bsg.
Hi Mike,
Many thanks for the information. Is there a separate device /dev/bsg like
/dev/sg ?
Yes. Load the bsg driver
modprobe bsg
and you should get that device (see kernel-source/block/bsg.c for the
bsg code if you want).
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