scsi: elx: efct: Remove unnecessary memset() in efct_io()

io->sgl is allocated by kzalloc(). The memory is set to zero.
It is unnecessary to call memset again.

Link: https://lore.kernel.org/r/20220318145230.1031-1-wanjiabing@vivo.com
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: efct: Don't pass GFP_DMA to dma_alloc_coherent()

dma_alloc_coherent() ignores the zone specifiers so this is pointless and
confusing.

Link: https://lore.kernel.org/r/20211214163605.416288-1-hch@lst.de
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: elx: efct: Hardware queues processing

Add driver definitions for:

- Routines for EQ, CQ, WQ and RQ processing.

- Routines for I/O object pool allocation and deallocation.

Link: https://lore.kernel.org/r/20210601235512.20104-23-jsmart2021@gmail.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>