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scsi: ibmvfc: add logic for protocol specific fabric logins

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Add support for the protocol-specific fabric login flow introduced by
the updated client/VIOS interface.

After NPIV login, a VIOS that advertises protocol-specific support
requires separate fabric login MADs for SCSI and NVMe/FC. Track whether
SCSI and NVMe/FC fabric login are needed, extend channel enquiry/setup
handling to negotiate both SCSI and NVMe queue counts, and issue the
appropriate fabric login MADs before target discovery begins.

Also update command layout selection so the driver uses the v3 command
format when the VIOS advertises NVMe/FC-capable framing.

Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Link: https://patch.msgid.link/20260723000149.969416-11-tyreld@linux.ibm.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Tyrel Datwyler 2026-07-22 17:01:26 -07:00 • committed by Martin K. Petersen
commit ecc03d958e
2 changed files with 206 additions and 35 deletions
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