[SCSI] NCR53c406a: convert to use the data buffer accessors
- remove the unnecessary map_single path.
- convert to use the new accessors for the sg lists and the
parameters.
Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/NCR53c406a.c b/drivers/scsi/NCR53c406a.c
index 7c0b17f..eda8c48 100644
--- a/drivers/scsi/NCR53c406a.c
+++ b/drivers/scsi/NCR53c406a.c
@@ -698,7 +698,7 @@
int i;
VDEB(printk("NCR53c406a_queue called\n"));
- DEB(printk("cmd=%02x, cmd_len=%02x, target=%02x, lun=%02x, bufflen=%d\n", SCpnt->cmnd[0], SCpnt->cmd_len, SCpnt->target, SCpnt->lun, SCpnt->request_bufflen));
+ DEB(printk("cmd=%02x, cmd_len=%02x, target=%02x, lun=%02x, bufflen=%d\n", SCpnt->cmnd[0], SCpnt->cmd_len, SCpnt->target, SCpnt->lun, scsi_bufflen(SCpnt)));
#if 0
VDEB(for (i = 0; i < SCpnt->cmd_len; i++)
@@ -785,8 +785,8 @@
unsigned char status, int_reg;
#if USE_PIO
unsigned char pio_status;
- struct scatterlist *sglist;
- unsigned int sgcount;
+ struct scatterlist *sg;
+ int i;
#endif
VDEB(printk("NCR53c406a_intr called\n"));
@@ -866,22 +866,18 @@
current_SC->SCp.phase = data_out;
VDEB(printk("NCR53c406a: Data-Out phase\n"));
outb(FLUSH_FIFO, CMD_REG);
- LOAD_DMA_COUNT(current_SC->request_bufflen); /* Max transfer size */
+ LOAD_DMA_COUNT(scsi_bufflen(current_SC)); /* Max transfer size */
#if USE_DMA /* No s/g support for DMA */
- NCR53c406a_dma_write(current_SC->request_buffer, current_SC->request_bufflen);
+ NCR53c406a_dma_write(scsi_sglist(current_SC),
+ scsdi_bufflen(current_SC));
+
#endif /* USE_DMA */
outb(TRANSFER_INFO | DMA_OP, CMD_REG);
#if USE_PIO
- if (!current_SC->use_sg) /* Don't use scatter-gather */
- NCR53c406a_pio_write(current_SC->request_buffer, current_SC->request_bufflen);
- else { /* use scatter-gather */
- sgcount = current_SC->use_sg;
- sglist = current_SC->request_buffer;
- while (sgcount--) {
- NCR53c406a_pio_write(page_address(sglist->page) + sglist->offset, sglist->length);
- sglist++;
- }
- }
+ scsi_for_each_sg(current_SC, sg, scsi_sg_count(current_SC), i) {
+ NCR53c406a_pio_write(page_address(sg->page) + sg->offset,
+ sg->length);
+ }
REG0;
#endif /* USE_PIO */
}
@@ -893,22 +889,17 @@
current_SC->SCp.phase = data_in;
VDEB(printk("NCR53c406a: Data-In phase\n"));
outb(FLUSH_FIFO, CMD_REG);
- LOAD_DMA_COUNT(current_SC->request_bufflen); /* Max transfer size */
+ LOAD_DMA_COUNT(scsi_bufflen(current_SC)); /* Max transfer size */
#if USE_DMA /* No s/g support for DMA */
- NCR53c406a_dma_read(current_SC->request_buffer, current_SC->request_bufflen);
+ NCR53c406a_dma_read(scsi_sglist(current_SC),
+ scsdi_bufflen(current_SC));
#endif /* USE_DMA */
outb(TRANSFER_INFO | DMA_OP, CMD_REG);
#if USE_PIO
- if (!current_SC->use_sg) /* Don't use scatter-gather */
- NCR53c406a_pio_read(current_SC->request_buffer, current_SC->request_bufflen);
- else { /* Use scatter-gather */
- sgcount = current_SC->use_sg;
- sglist = current_SC->request_buffer;
- while (sgcount--) {
- NCR53c406a_pio_read(page_address(sglist->page) + sglist->offset, sglist->length);
- sglist++;
- }
- }
+ scsi_for_each_sg(current_SC, sg, scsi_sg_count(current_SC), i) {
+ NCR53c406a_pio_read(page_address(sg->page) + sg->offset,
+ sg->length);
+ }
REG0;
#endif /* USE_PIO */
}