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path: root/drivers/scsi/53c700.c
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Diffstat (limited to 'drivers/scsi/53c700.c')
-rw-r--r--drivers/scsi/53c700.c77
1 files changed, 25 insertions, 52 deletions
diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index cb02656eb54c..71ff3fbfce12 100644
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -267,8 +267,6 @@ NCR_700_offset_period_to_sxfer(struct NCR_700_Host_Parameters *hostdata,
offset = max_offset;
}
if(XFERP < min_xferp) {
- printk(KERN_WARNING "53c700: XFERP %d is less than minium, setting to %d\n",
- XFERP, min_xferp);
XFERP = min_xferp;
}
return (offset & 0x0f) | (XFERP & 0x07)<<4;
@@ -585,16 +583,8 @@ NCR_700_unmap(struct NCR_700_Host_Parameters *hostdata, struct scsi_cmnd *SCp,
struct NCR_700_command_slot *slot)
{
if(SCp->sc_data_direction != DMA_NONE &&
- SCp->sc_data_direction != DMA_BIDIRECTIONAL) {
- if(SCp->use_sg) {
- dma_unmap_sg(hostdata->dev, SCp->request_buffer,
- SCp->use_sg, SCp->sc_data_direction);
- } else {
- dma_unmap_single(hostdata->dev, slot->dma_handle,
- SCp->request_bufflen,
- SCp->sc_data_direction);
- }
- }
+ SCp->sc_data_direction != DMA_BIDIRECTIONAL)
+ scsi_dma_unmap(SCp);
}
STATIC inline void
@@ -661,7 +651,6 @@ NCR_700_chip_setup(struct Scsi_Host *host)
{
struct NCR_700_Host_Parameters *hostdata =
(struct NCR_700_Host_Parameters *)host->hostdata[0];
- __u32 dcntl_extra = 0;
__u8 min_period;
__u8 min_xferp = (hostdata->chip710 ? NCR_710_MIN_XFERP : NCR_700_MIN_XFERP);
@@ -686,13 +675,14 @@ NCR_700_chip_setup(struct Scsi_Host *host)
burst_disable = BURST_DISABLE;
break;
}
- dcntl_extra = COMPAT_700_MODE;
+ hostdata->dcntl_extra |= COMPAT_700_MODE;
- NCR_700_writeb(dcntl_extra, host, DCNTL_REG);
+ NCR_700_writeb(hostdata->dcntl_extra, host, DCNTL_REG);
NCR_700_writeb(burst_length | hostdata->dmode_extra,
host, DMODE_710_REG);
- NCR_700_writeb(burst_disable | (hostdata->differential ?
- DIFF : 0), host, CTEST7_REG);
+ NCR_700_writeb(burst_disable | hostdata->ctest7_extra |
+ (hostdata->differential ? DIFF : 0),
+ host, CTEST7_REG);
NCR_700_writeb(BTB_TIMER_DISABLE, host, CTEST0_REG);
NCR_700_writeb(FULL_ARBITRATION | ENABLE_PARITY | PARITY
| AUTO_ATN, host, SCNTL0_REG);
@@ -727,13 +717,13 @@ NCR_700_chip_setup(struct Scsi_Host *host)
* of spec: sync divider 2, async divider 3 */
DEBUG(("53c700: sync 2 async 3\n"));
NCR_700_writeb(SYNC_DIV_2_0, host, SBCL_REG);
- NCR_700_writeb(ASYNC_DIV_3_0 | dcntl_extra, host, DCNTL_REG);
+ NCR_700_writeb(ASYNC_DIV_3_0 | hostdata->dcntl_extra, host, DCNTL_REG);
hostdata->sync_clock = hostdata->clock/2;
} else if(hostdata->clock > 50 && hostdata->clock <= 75) {
/* sync divider 1.5, async divider 3 */
DEBUG(("53c700: sync 1.5 async 3\n"));
NCR_700_writeb(SYNC_DIV_1_5, host, SBCL_REG);
- NCR_700_writeb(ASYNC_DIV_3_0 | dcntl_extra, host, DCNTL_REG);
+ NCR_700_writeb(ASYNC_DIV_3_0 | hostdata->dcntl_extra, host, DCNTL_REG);
hostdata->sync_clock = hostdata->clock*2;
hostdata->sync_clock /= 3;
@@ -741,18 +731,18 @@ NCR_700_chip_setup(struct Scsi_Host *host)
/* sync divider 1, async divider 2 */
DEBUG(("53c700: sync 1 async 2\n"));
NCR_700_writeb(SYNC_DIV_1_0, host, SBCL_REG);
- NCR_700_writeb(ASYNC_DIV_2_0 | dcntl_extra, host, DCNTL_REG);
+ NCR_700_writeb(ASYNC_DIV_2_0 | hostdata->dcntl_extra, host, DCNTL_REG);
hostdata->sync_clock = hostdata->clock;
} else if(hostdata->clock > 25 && hostdata->clock <=37) {
/* sync divider 1, async divider 1.5 */
DEBUG(("53c700: sync 1 async 1.5\n"));
NCR_700_writeb(SYNC_DIV_1_0, host, SBCL_REG);
- NCR_700_writeb(ASYNC_DIV_1_5 | dcntl_extra, host, DCNTL_REG);
+ NCR_700_writeb(ASYNC_DIV_1_5 | hostdata->dcntl_extra, host, DCNTL_REG);
hostdata->sync_clock = hostdata->clock;
} else {
DEBUG(("53c700: sync 1 async 1\n"));
NCR_700_writeb(SYNC_DIV_1_0, host, SBCL_REG);
- NCR_700_writeb(ASYNC_DIV_1_0 | dcntl_extra, host, DCNTL_REG);
+ NCR_700_writeb(ASYNC_DIV_1_0 | hostdata->dcntl_extra, host, DCNTL_REG);
/* sync divider 1, async divider 1 */
hostdata->sync_clock = hostdata->clock;
}
@@ -1263,14 +1253,13 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp,
host->host_no, pun, lun, NCR_700_condition[i],
NCR_700_phase[j], dsp - hostdata->pScript);
if(SCp != NULL) {
- scsi_print_command(SCp);
+ struct scatterlist *sg;
- if(SCp->use_sg) {
- for(i = 0; i < SCp->use_sg + 1; i++) {
- printk(KERN_INFO " SG[%d].length = %d, move_insn=%08x, addr %08x\n", i, ((struct scatterlist *)SCp->request_buffer)[i].length, ((struct NCR_700_command_slot *)SCp->host_scribble)->SG[i].ins, ((struct NCR_700_command_slot *)SCp->host_scribble)->SG[i].pAddr);
- }
+ scsi_print_command(SCp);
+ scsi_for_each_sg(SCp, sg, scsi_sg_count(SCp) + 1, i) {
+ printk(KERN_INFO " SG[%d].length = %d, move_insn=%08x, addr %08x\n", i, sg->length, ((struct NCR_700_command_slot *)SCp->host_scribble)->SG[i].ins, ((struct NCR_700_command_slot *)SCp->host_scribble)->SG[i].pAddr);
}
- }
+ }
NCR_700_internal_bus_reset(host);
} else if((dsps & 0xfffff000) == A_DEBUG_INTERRUPT) {
printk(KERN_NOTICE "scsi%d (%d:%d) DEBUG INTERRUPT %d AT %08x[%04x], continuing\n",
@@ -1844,8 +1833,8 @@ NCR_700_queuecommand(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *))
}
/* sanity check: some of the commands generated by the mid-layer
* have an eccentric idea of their sc_data_direction */
- if(!SCp->use_sg && !SCp->request_bufflen
- && SCp->sc_data_direction != DMA_NONE) {
+ if(!scsi_sg_count(SCp) && !scsi_bufflen(SCp) &&
+ SCp->sc_data_direction != DMA_NONE) {
#ifdef NCR_700_DEBUG
printk("53c700: Command");
scsi_print_command(SCp);
@@ -1887,31 +1876,15 @@ NCR_700_queuecommand(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *))
int i;
int sg_count;
dma_addr_t vPtr = 0;
+ struct scatterlist *sg;
__u32 count = 0;
- if(SCp->use_sg) {
- sg_count = dma_map_sg(hostdata->dev,
- SCp->request_buffer, SCp->use_sg,
- direction);
- } else {
- vPtr = dma_map_single(hostdata->dev,
- SCp->request_buffer,
- SCp->request_bufflen,
- direction);
- count = SCp->request_bufflen;
- slot->dma_handle = vPtr;
- sg_count = 1;
- }
-
+ sg_count = scsi_dma_map(SCp);
+ BUG_ON(sg_count < 0);
- for(i = 0; i < sg_count; i++) {
-
- if(SCp->use_sg) {
- struct scatterlist *sg = SCp->request_buffer;
-
- vPtr = sg_dma_address(&sg[i]);
- count = sg_dma_len(&sg[i]);
- }
+ scsi_for_each_sg(SCp, sg, sg_count, i) {
+ vPtr = sg_dma_address(sg);
+ count = sg_dma_len(sg);
slot->SG[i].ins = bS_to_host(move_ins | count);
DEBUG((" scatter block %d: move %d[%08x] from 0x%lx\n",
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-23 05:02:03 +0000