X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=drivers%2Fscsi%2Fpcmcia%2Fsym53c500_cs.c;h=190e2a7d706748a10275bde1c40842415b459948;hb=fc8a327db6c46de783b1a4276d846841b9abc24c;hp=5b458d2478f7f92eea58a059cfdc6fa0b8ce0dd6;hpb=8c8c4bafc3a20a6fb9078315ff865bc42276f9ba;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/scsi/pcmcia/sym53c500_cs.c b/drivers/scsi/pcmcia/sym53c500_cs.c
index 5b458d2478f..190e2a7d706 100644
--- a/drivers/scsi/pcmcia/sym53c500_cs.c
+++ b/drivers/scsi/pcmcia/sym53c500_cs.c
@@ -54,7 +54,6 @@
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
-#include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/ioport.h>
@@ -371,8 +370,6 @@ SYM53C500_intr(int irq, void *dev_id)
 	DEB(unsigned char seq_reg;)
 	unsigned char status, int_reg;
 	unsigned char pio_status;
-	struct scatterlist *sglist;
-	unsigned int sgcount;
 	int port_base = dev->io_port;
 	struct sym53c500_data *data =
 	    (struct sym53c500_data *)dev->hostdata;
@@ -435,20 +432,19 @@ SYM53C500_intr(int irq, void *dev_id)
 	switch (status & 0x07) {	/* scsi phase */
 	case 0x00:			/* DATA-OUT */
 		if (int_reg & 0x10) {	/* Target requesting info transfer */
+			struct scatterlist *sg;
+			int i;
+
 			curSC->SCp.phase = data_out;
 			VDEB(printk("SYM53C500: Data-Out phase\n"));
 			outb(FLUSH_FIFO, port_base + CMD_REG);
-			LOAD_DMA_COUNT(port_base, curSC->request_bufflen);	/* Max transfer size */
+			LOAD_DMA_COUNT(port_base, scsi_bufflen(curSC));	/* Max transfer size */
 			outb(TRANSFER_INFO | DMA_OP, port_base + CMD_REG);
-			if (!curSC->use_sg)	/* Don't use scatter-gather */
-				SYM53C500_pio_write(fast_pio, port_base, curSC->request_buffer, curSC->request_bufflen);
-			else {	/* use scatter-gather */
-				sgcount = curSC->use_sg;
-				sglist = curSC->request_buffer;
-				while (sgcount--) {
-					SYM53C500_pio_write(fast_pio, port_base, page_address(sglist->page) + sglist->offset, sglist->length);
-					sglist++;
-				}
+
+			scsi_for_each_sg(curSC, sg, scsi_sg_count(curSC), i) {
+				SYM53C500_pio_write(fast_pio, port_base,
+						    page_address(sg->page) + sg->offset,
+						    sg->length);
 			}
 			REG0(port_base);
 		}
@@ -456,20 +452,19 @@ SYM53C500_intr(int irq, void *dev_id)
 
 	case 0x01:		/* DATA-IN */
 		if (int_reg & 0x10) {	/* Target requesting info transfer */
+			struct scatterlist *sg;
+			int i;
+
 			curSC->SCp.phase = data_in;
 			VDEB(printk("SYM53C500: Data-In phase\n"));
 			outb(FLUSH_FIFO, port_base + CMD_REG);
-			LOAD_DMA_COUNT(port_base, curSC->request_bufflen);	/* Max transfer size */
+			LOAD_DMA_COUNT(port_base, scsi_bufflen(curSC));	/* Max transfer size */
 			outb(TRANSFER_INFO | DMA_OP, port_base + CMD_REG);
-			if (!curSC->use_sg)	/* Don't use scatter-gather */
-				SYM53C500_pio_read(fast_pio, port_base, curSC->request_buffer, curSC->request_bufflen);
-			else {	/* Use scatter-gather */
-				sgcount = curSC->use_sg;
-				sglist = curSC->request_buffer;
-				while (sgcount--) {
-					SYM53C500_pio_read(fast_pio, port_base, page_address(sglist->page) + sglist->offset, sglist->length);
-					sglist++;
-				}
+
+			scsi_for_each_sg(curSC, sg, scsi_sg_count(curSC), i) {
+				SYM53C500_pio_read(fast_pio, port_base,
+						   page_address(sg->page) + sg->offset,
+						   sg->length);
 			}
 			REG0(port_base);
 		}
@@ -579,7 +574,7 @@ SYM53C500_queue(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
 
 	DEB(printk("cmd=%02x, cmd_len=%02x, target=%02x, lun=%02x, bufflen=%d\n", 
 	    SCpnt->cmnd[0], SCpnt->cmd_len, SCpnt->device->id, 
-	    SCpnt->device->lun,  SCpnt->request_bufflen));
+	    SCpnt->device->lun,  scsi_bufflen(SCpnt)));
 
 	VDEB(for (i = 0; i < SCpnt->cmd_len; i++)
 	    printk("cmd[%d]=%02x  ", i, SCpnt->cmnd[i]));
@@ -699,6 +694,7 @@ static struct scsi_host_template sym53c500_driver_template = {
      .sg_tablesize		= 32,
      .cmd_per_lun		= 1,
      .use_clustering		= ENABLE_CLUSTERING,
+     .use_sg_chaining		= ENABLE_SG_CHAINING,
      .shost_attrs		= SYM53C500_shost_attrs
 };
 
@@ -880,10 +876,9 @@ SYM53C500_probe(struct pcmcia_device *link)
 	DEBUG(0, "SYM53C500_attach()\n");
 
 	/* Create new SCSI device */
-	info = kmalloc(sizeof(*info), GFP_KERNEL);
+	info = kzalloc(sizeof(*info), GFP_KERNEL);
 	if (!info)
 		return -ENOMEM;
-	memset(info, 0, sizeof(*info));
 	info->p_dev = link;
 	link->priv = info;
 	link->io.NumPorts1 = 16;