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scsi: cxlflash: Remove port configuration assumptions

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At present, the cxlflash driver only supports hardware with two FC ports. The
code was initially designed with this assumption and is dependent on having
two FC ports - adding more ports will break logic within the driver.

To mitigate this issue, remove the existing port assumptions and transition
the code to support more than two ports. As a side effect, clarify the
interpretation of the DK_CXLFLASH_ALL_PORTS_ACTIVE flag.

Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Matthew R. Ochs
2017-04-12 14:14:05 -05:00
committed by Martin K. Petersen
parent 78ae028e82
commit 8fa4f1770d
8 changed files with 77 additions and 45 deletions
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2
drivers/scsi/cxlflash/sislite.h
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@@ -479,7 +479,7 @@ struct sisl_rht_entry_f1 {
#define PORT0 0x01U
#define PORT1 0x02U
#define BOTH_PORTS (PORT0 | PORT1)
#define PORT_MASK(_n) ((1 << (_n)) - 1)
/* AFU Sync Mode byte */
#define AFU_LW_SYNC 0x0U