scsi: ibmvfc: Add helper for testing capability flags

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Testing the NPIV Login response capabilities is a long winded process of
dereferencing the vhost->login_buf->resp.capabilities field, then byte
swapping that value to host endian, and performing the bitwise test.
Currently we only ever check this in ibmvfc_cancel_all(), but follow-up
patches will need to regularly check for targetWWPN and channelization
support.

Add a helper to simplify checking various VIOS capabilities, namely
ibmvfc_check_caps().

Link: https://lore.kernel.org/r/20201118011104.296999-4-tyreld@linux.ibm.com
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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Tyrel Datwyler 2020-11-17 19:11:01 -06:00 • committed by Martin K. Petersen

parent c16b8a6d8a

commit a318c2b71c

1 changed files with 8 additions and 1 deletions

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drivers/scsi/ibmvscsi/ibmvfc.c

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