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James Smart authored
Commit 1351e69f ("scsi: lpfc: Add push-to-adapter support to sli4") fails compilation on some 32-bit systems as writeq() is not supported on all architectures. Additionally, it was pointed out that as writeX() does byteswapping if necessary for pci vs the cpu endianness, the code was broken on BE PPC. After discussions with Arnd Bergmann, we've resolved the issue to the following: Instead of writeX(), use __raw_writeX() - which writes to io space while preserving byte order. To use this, the code was changed to use a different buffer that lpfc prepped via sli_pcimem_bcopy() that was set to the bytestream to be written. On platforms with __raw_writeq support, use the routine, otherwise use __raw_writel() [mkp: checkpatch] Fixes: 1351e69f ("scsi: lpfc: Add push-to-adapter support to sli4") Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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