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authorLee Duncan2022-09-28 11:13:50 -0700
committerGreg Kroah-Hartman2023-03-22 13:33:43 +0100
commitd2112b18b591eb219b61dbc86a04a58f6d6431c6 (patch)
treeb2c918daf7b643edaa6aec6f3b0b6e3878a85c65 /drivers/zorro/zorro.ids
parent71ba8c384b7716250159d154418f6d23d2e4209c (diff)
scsi: core: Add BLIST_NO_VPD_SIZE for some VDASD
[ Upstream commit 4b1a2c2a8e0ddcb89c5f6c5003bd9b53142f69e3 ] Some storage, such as AIX VDASD (virtual storage) and IBM 2076 (front end), fail as a result of 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 blacklist flag says to revert to the original method of reading the VPD pages, i.e. try to read a whole buffer's worth on the first try. [mkp: reworked somewhat] 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> Link: https://lore.kernel.org/r/20220928181350.9948-1-leeman.duncan@gmail.com Tested-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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