Messages in this thread | | | Date | Mon, 20 Feb 2023 16:43:55 +0530 | From | Srikar Dronamraju <> | Subject | Re: [PATCH] scsi: core: Add BLIST_NO_ASK_VPD_SIZE for some VDASD |
| |
* Lee Duncan <leeman.duncan@gmail.com> [2022-09-28 11:13:50]:
> From: Lee Duncan <lduncan@suse.com> > > Some storage, such as AIX VDASD (virtual storage) and IBM 2076 > (front end) do not like the recent commit: > > commit c92a6b5d6335 ("scsi: core: Query VPD size before getting full page") > > That commit changed getting SCSI VPD pages so that we now read > just enough of the page to get the actual page size, then read > the whole page in a second read. The problem is that the above > mentioned hardware returns zero for the page size, because of > a firmware error. In such cases, until the firmware is fixed, > this new black flag says to revert to the original method of > reading the VPD pages, i.e. try to read as a whole buffer's > worth on the first try. > > Fixes: c92a6b5d6335 ("scsi: core: Query VPD size before getting full page") > Reported-by: Martin Wilck <mwilck@suse.com> > Suggested-by: Hannes Reinecke <hare@suse.de> > Signed-off-by: Lee Duncan <lduncan@suse.com>
Facing similar problem on latest upstream kernel and this fixes it in my testing.
Incase this helps:
$ lsslot # Slot Description Linux Name Device(s) U9080.HEX.134C1E8-V9-C0 Virtual I/O Slot 30000000 vty U9080.HEX.134C1E8-V9-C2 Virtual I/O Slot 30000002 l-lan U9080.HEX.134C1E8-V9-C109 Virtual I/O Slot 3000006d v-scsi
$ ls-vscsi host0 U9080.HEX.134C1E8-V9-C109-T0
$ lsscsi [0:0:1:0] disk AIX VDASD 0001 /dev/sda [0:0:2:0] cd/dvd AIX VOPTA /dev/sr0
Tested-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
-- Thanks and Regards Srikar Dronamraju
| |