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| author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2007-05-16 06:44:34 +0900 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2007-05-26 19:08:50 -0500 |
| commit | 772a5c3f3bbc7749971a3dd4ff35cd77a9e12201 (patch) | |
| tree | a016e5e9340582f8eb19b4cb31f81d0f4bd5037f /drivers/scsi/sym53c416.c | |
| parent | 03cde46b6bd74672bcb88a2f155aa3e3b6ff4fa1 (diff) | |
| download | linux-772a5c3f3bbc7749971a3dd4ff35cd77a9e12201.tar.gz linux-772a5c3f3bbc7749971a3dd4ff35cd77a9e12201.tar.bz2 linux-772a5c3f3bbc7749971a3dd4ff35cd77a9e12201.zip | |
[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.c | 44 |
1 files changed, 18 insertions, 26 deletions
diff --git a/drivers/scsi/sym53c416.c b/drivers/scsi/sym53c416.c index 2ca950582bc3..92bfaeafe30d 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); |