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authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>2007-05-15 21:44:34 (GMT)
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2007-05-27 00:08:50 (GMT)
commit772a5c3f3bbc7749971a3dd4ff35cd77a9e12201 (patch)
treea016e5e9340582f8eb19b4cb31f81d0f4bd5037f /drivers/scsi/sym53c416.c
parent03cde46b6bd74672bcb88a2f155aa3e3b6ff4fa1 (diff)
downloadlinux-772a5c3f3bbc7749971a3dd4ff35cd77a9e12201.tar.xz
[SCSI] sym53c416: 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>
Diffstat (limited to 'drivers/scsi/sym53c416.c')
-rw-r--r--drivers/scsi/sym53c416.c44
1 files changed, 18 insertions, 26 deletions
diff --git a/drivers/scsi/sym53c416.c b/drivers/scsi/sym53c416.c
index 2ca9505..92bfaea 100644
--- a/drivers/scsi/sym53c416.c
+++ b/drivers/scsi/sym53c416.c
@@ -332,8 +332,7 @@ static irqreturn_t sym53c416_intr_handle(int irq, void *dev_id)
int i;
unsigned long flags = 0;
unsigned char status_reg, pio_int_reg, int_reg;
- struct scatterlist *sglist;
- unsigned int sgcount;
+ struct scatterlist *sg;
unsigned int tot_trans = 0;
/* We search the base address of the host adapter which caused the interrupt */
@@ -429,19 +428,15 @@ static irqreturn_t sym53c416_intr_handle(int irq, void *dev_id)
{
current_command->SCp.phase = data_out;
outb(FLUSH_FIFO, base + COMMAND_REG);
- sym53c416_set_transfer_counter(base, current_command->request_bufflen);
+ sym53c416_set_transfer_counter(base,
+ scsi_bufflen(current_command));
outb(TRANSFER_INFORMATION | PIO_MODE, base + COMMAND_REG);
- if(!current_command->use_sg)
- tot_trans = sym53c416_write(base, current_command->request_buffer, current_command->request_bufflen);
- else
- {
- sgcount = current_command->use_sg;
- sglist = current_command->request_buffer;
- while(sgcount--)
- {
- tot_trans += sym53c416_write(base, SG_ADDRESS(sglist), sglist->length);
- sglist++;
- }
+
+ scsi_for_each_sg(current_command,
+ sg, scsi_sg_count(current_command), i) {
+ tot_trans += sym53c416_write(base,
+ SG_ADDRESS(sg),
+ sg->length);
}
if(tot_trans < current_command->underflow)
printk(KERN_WARNING "sym53c416: Underflow, wrote %d bytes, request for %d bytes.\n", tot_trans, current_command->underflow);
@@ -455,19 +450,16 @@ static irqreturn_t sym53c416_intr_handle(int irq, void *dev_id)
{
current_command->SCp.phase = data_in;
outb(FLUSH_FIFO, base + COMMAND_REG);
- sym53c416_set_transfer_counter(base, current_command->request_bufflen);
+ sym53c416_set_transfer_counter(base,
+ scsi_bufflen(current_command));
+
outb(TRANSFER_INFORMATION | PIO_MODE, base + COMMAND_REG);
- if(!current_command->use_sg)
- tot_trans = sym53c416_read(base, current_command->request_buffer, current_command->request_bufflen);
- else
- {
- sgcount = current_command->use_sg;
- sglist = current_command->request_buffer;
- while(sgcount--)
- {
- tot_trans += sym53c416_read(base, SG_ADDRESS(sglist), sglist->length);
- sglist++;
- }
+
+ scsi_for_each_sg(current_command,
+ sg, scsi_sg_count(current_command), i) {
+ tot_trans += sym53c416_read(base,
+ SG_ADDRESS(sg),
+ sg->length);
}
if(tot_trans < current_command->underflow)
printk(KERN_WARNING "sym53c416: Underflow, read %d bytes, request for %d bytes.\n", tot_trans, current_command->underflow);