Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fe7ed98fd49a28287aca8b0ba8da8fb9ca35a055
Commit: fe7ed98fd49a28287aca8b0ba8da8fb9ca35a055
Parent: c73961e563dde3239e2e5da08b25ab2832b2e840
Author: Boaz Harrosh <[EMAIL PROTECTED]>
AuthorDate: Sun Sep 9 21:06:23 2007 +0300
Committer: James Bottomley <[EMAIL PROTECTED]>
CommitDate: Fri Jan 11 18:22:38 2008 -0600
[SCSI] atp870u: convert to accessors and !use_sg cleanup
- convert to accessors and !use_sg cleanup
- Probably not ready for sg-chaining
Signed-off-by: Boaz Harrosh <[EMAIL PROTECTED]>
Acked-by: Christoph Hellwig <[EMAIL PROTECTED]>
Cc: jameshsu <[EMAIL PROTECTED]>
Signed-off-by: James Bottomley <[EMAIL PROTECTED]>
---
drivers/scsi/atp870u.c | 102 ++++++++----------------------------------------
1 files changed, 17 insertions(+), 85 deletions(-)
diff --git a/drivers/scsi/atp870u.c b/drivers/scsi/atp870u.c
index fec58cc..db6de5e 100644
--- a/drivers/scsi/atp870u.c
+++ b/drivers/scsi/atp870u.c
@@ -471,18 +471,8 @@ go_42:
/*
* Complete the command
*/
- if (workreq->use_sg) {
- pci_unmap_sg(dev->pdev,
- (struct scatterlist
*)workreq->request_buffer,
- workreq->use_sg,
- workreq->sc_data_direction);
- } else if (workreq->request_bufflen &&
- workreq->sc_data_direction != DMA_NONE)
{
- pci_unmap_single(dev->pdev,
- workreq->SCp.dma_handle,
- workreq->request_bufflen,
- workreq->sc_data_direction);
- }
+ scsi_dma_unmap(workreq);
+
spin_lock_irqsave(dev->host->host_lock, flags);
(*workreq->scsi_done) (workreq);
#ifdef ED_DBGP
@@ -624,7 +614,7 @@ static int atp870u_queuecommand(struct scsi_cmnd * req_p,
c = scmd_channel(req_p);
req_p->sense_buffer[0]=0;
- req_p->resid = 0;
+ scsi_set_resid(req_p, 0);
if (scmd_channel(req_p) > 1) {
req_p->result = 0x00040000;
done(req_p);
@@ -722,7 +712,6 @@ static void send_s870(struct atp_unit *dev,unsigned char c)
unsigned short int tmpcip, w;
unsigned long l, bttl = 0;
unsigned int workport;
- struct scatterlist *sgpnt;
unsigned long sg_count;
if (dev->in_snd[c] != 0) {
@@ -793,6 +782,8 @@ oktosend:
}
printk("\n");
#endif
+ l = scsi_bufflen(workreq);
+
if (dev->dev_id == ATP885_DEVID) {
j = inb(dev->baseport + 0x29) & 0xfe;
outb(j, dev->baseport + 0x29);
@@ -800,12 +791,11 @@ oktosend:
}
if (workreq->cmnd[0] == READ_CAPACITY) {
- if (workreq->request_bufflen > 8) {
- workreq->request_bufflen = 0x08;
- }
+ if (l > 8)
+ l = 8;
}
if (workreq->cmnd[0] == 0x00) {
- workreq->request_bufflen = 0;
+ l = 0;
}
tmport = workport + 0x1b;
@@ -852,40 +842,8 @@ oktosend:
#ifdef ED_DBGP
printk("dev->id[%d][%d].devsp =
%2x\n",c,target_id,dev->id[c][target_id].devsp);
#endif
- /*
- * Figure out the transfer size
- */
- if (workreq->use_sg) {
-#ifdef ED_DBGP
- printk("Using SGL\n");
-#endif
- l = 0;
-
- sgpnt = (struct scatterlist *) workreq->request_buffer;
- sg_count = pci_map_sg(dev->pdev, sgpnt, workreq->use_sg,
- workreq->sc_data_direction);
-
- for (i = 0; i < workreq->use_sg; i++) {
- if (sgpnt[i].length == 0 || workreq->use_sg >
ATP870U_SCATTER) {
- panic("Foooooooood fight!");
- }
- l += sgpnt[i].length;
- }
-#ifdef ED_DBGP
- printk( "send_s870: workreq->use_sg %d, sg_count %d l %8ld\n",
workreq->use_sg, sg_count, l);
-#endif
- } else if(workreq->request_bufflen && workreq->sc_data_direction !=
PCI_DMA_NONE) {
-#ifdef ED_DBGP
- printk("Not using SGL\n");
-#endif
- workreq->SCp.dma_handle = pci_map_single(dev->pdev,
workreq->request_buffer,
- workreq->request_bufflen,
- workreq->sc_data_direction);
- l = workreq->request_bufflen;
-#ifdef ED_DBGP
- printk( "send_s870: workreq->use_sg %d, l %8ld\n",
workreq->use_sg, l);
-#endif
- } else l = 0;
+
+ sg_count = scsi_dma_map(workreq);
/*
* Write transfer size
*/
@@ -938,16 +896,16 @@ oktosend:
* a linear chain.
*/
- if (workreq->use_sg) {
- sgpnt = (struct scatterlist *) workreq->request_buffer;
+ if (l) {
+ struct scatterlist *sgpnt;
i = 0;
- for (j = 0; j < workreq->use_sg; j++) {
- bttl = sg_dma_address(&sgpnt[j]);
- l=sg_dma_len(&sgpnt[j]);
+ scsi_for_each_sg(workreq, sgpnt, sg_count, j) {
+ bttl = sg_dma_address(sgpnt);
+ l=sg_dma_len(sgpnt);
#ifdef ED_DBGP
- printk("1. bttl %x, l %x\n",bttl, l);
+ printk("1. bttl %x, l %x\n",bttl, l);
#endif
- while (l > 0x10000) {
+ while (l > 0x10000) {
(((u16 *) (prd))[i + 3]) = 0x0000;
(((u16 *) (prd))[i + 2]) = 0x0000;
(((u32 *) (prd))[i >> 1]) = cpu_to_le32(bttl);
@@ -965,32 +923,6 @@ oktosend:
printk("prd %4x %4x %4x %4x\n",(((unsigned short int
*)prd)[0]),(((unsigned short int *)prd)[1]),(((unsigned short int
*)prd)[2]),(((unsigned short int *)prd)[3]));
printk("2. bttl %x, l %x\n",bttl, l);
#endif
- } else {
- /*
- * For a linear request write a chain of blocks
- */
- bttl = workreq->SCp.dma_handle;
- l = workreq->request_bufflen;
- i = 0;
-#ifdef ED_DBGP
- printk("3. bttl %x, l %x\n",bttl, l);
-#endif
- while (l > 0x10000) {
- (((u16 *) (prd))[i + 3]) = 0x0000;
- (((u16 *) (prd))[i + 2]) = 0x0000;
- (((u32 *) (prd))[i >> 1]) = cpu_to_le32(bttl);
- l -= 0x10000;
- bttl += 0x10000;
- i += 0x04;
- }
- (((u16 *) (prd))[i + 3]) = cpu_to_le16(0x8000);
- (((u16 *) (prd))[i + 2]) = cpu_to_le16(l);
- (((u32 *) (prd))[i >> 1]) = cpu_to_le32(bttl);
-#ifdef ED_DBGP
- printk("prd %4x %4x %4x %4x\n",(((unsigned short int
*)prd)[0]),(((unsigned short int *)prd)[1]),(((unsigned short int
*)prd)[2]),(((unsigned short int *)prd)[3]));
- printk("4. bttl %x, l %x\n",bttl, l);
-#endif
-
}
tmpcip += 4;
#ifdef ED_DBGP
-
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