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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.c39
1 files changed, 21 insertions, 18 deletions
diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index 71ff3fbfce1..a3adfb4357f 100644
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -117,6 +117,7 @@
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/string.h>
+#include <linux/slab.h>
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/spinlock.h>
@@ -128,7 +129,6 @@
#include <linux/interrupt.h>
#include <linux/device.h>
#include <asm/dma.h>
-#include <asm/system.h>
#include <asm/io.h>
#include <asm/pgtable.h>
#include <asm/byteorder.h>
@@ -166,7 +166,7 @@ MODULE_LICENSE("GPL");
#include "53c700_d.h"
-STATIC int NCR_700_queuecommand(struct scsi_cmnd *, void (*done)(struct scsi_cmnd *));
+STATIC int NCR_700_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *);
STATIC int NCR_700_abort(struct scsi_cmnd * SCpnt);
STATIC int NCR_700_bus_reset(struct scsi_cmnd * SCpnt);
STATIC int NCR_700_host_reset(struct scsi_cmnd * SCpnt);
@@ -175,7 +175,7 @@ STATIC void NCR_700_chip_reset(struct Scsi_Host *host);
STATIC int NCR_700_slave_alloc(struct scsi_device *SDpnt);
STATIC int NCR_700_slave_configure(struct scsi_device *SDpnt);
STATIC void NCR_700_slave_destroy(struct scsi_device *SDpnt);
-static int NCR_700_change_queue_depth(struct scsi_device *SDpnt, int depth);
+static int NCR_700_change_queue_depth(struct scsi_device *SDpnt, int depth, int reason);
static int NCR_700_change_queue_type(struct scsi_device *SDpnt, int depth);
STATIC struct device_attribute *NCR_700_dev_attrs[];
@@ -308,9 +308,6 @@ NCR_700_detect(struct scsi_host_template *tpnt,
hostdata->msgin = memory + MSGIN_OFFSET;
hostdata->msgout = memory + MSGOUT_OFFSET;
hostdata->status = memory + STATUS_OFFSET;
- /* all of these offsets are L1_CACHE_BYTES separated. It is fatal
- * if this isn't sufficient separation to avoid dma flushing issues */
- BUG_ON(!dma_is_consistent(hostdata->dev, pScript) && L1_CACHE_BYTES < dma_get_cache_alignment());
hostdata->slots = (struct NCR_700_command_slot *)(memory + SLOTS_OFFSET);
hostdata->dev = dev;
@@ -599,7 +596,7 @@ NCR_700_scsi_done(struct NCR_700_Host_Parameters *hostdata,
(struct NCR_700_command_slot *)SCp->host_scribble;
dma_unmap_single(hostdata->dev, slot->pCmd,
- sizeof(SCp->cmnd), DMA_TO_DEVICE);
+ MAX_COMMAND_SIZE, DMA_TO_DEVICE);
if (slot->flags == NCR_700_FLAG_AUTOSENSE) {
char *cmnd = NCR_700_get_sense_cmnd(SCp->device);
#ifdef NCR_700_DEBUG
@@ -608,7 +605,8 @@ NCR_700_scsi_done(struct NCR_700_Host_Parameters *hostdata,
scsi_print_sense("53c700", SCp);
#endif
- dma_unmap_single(hostdata->dev, slot->dma_handle, sizeof(SCp->sense_buffer), DMA_FROM_DEVICE);
+ dma_unmap_single(hostdata->dev, slot->dma_handle,
+ SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE);
/* restore the old result if the request sense was
* successful */
if (result == 0)
@@ -1003,14 +1001,14 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp,
* here */
NCR_700_unmap(hostdata, SCp, slot);
dma_unmap_single(hostdata->dev, slot->pCmd,
- sizeof(SCp->cmnd),
+ MAX_COMMAND_SIZE,
DMA_TO_DEVICE);
cmnd[0] = REQUEST_SENSE;
cmnd[1] = (SCp->device->lun & 0x7) << 5;
cmnd[2] = 0;
cmnd[3] = 0;
- cmnd[4] = sizeof(SCp->sense_buffer);
+ cmnd[4] = SCSI_SENSE_BUFFERSIZE;
cmnd[5] = 0;
/* Here's a quiet hack: the
* REQUEST_SENSE command is six bytes,
@@ -1024,14 +1022,14 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp,
SCp->cmd_len = 6; /* command length for
* REQUEST_SENSE */
slot->pCmd = dma_map_single(hostdata->dev, cmnd, MAX_COMMAND_SIZE, DMA_TO_DEVICE);
- slot->dma_handle = dma_map_single(hostdata->dev, SCp->sense_buffer, sizeof(SCp->sense_buffer), DMA_FROM_DEVICE);
- slot->SG[0].ins = bS_to_host(SCRIPT_MOVE_DATA_IN | sizeof(SCp->sense_buffer));
+ slot->dma_handle = dma_map_single(hostdata->dev, SCp->sense_buffer, SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE);
+ slot->SG[0].ins = bS_to_host(SCRIPT_MOVE_DATA_IN | SCSI_SENSE_BUFFERSIZE);
slot->SG[0].pAddr = bS_to_host(slot->dma_handle);
slot->SG[1].ins = bS_to_host(SCRIPT_RETURN);
slot->SG[1].pAddr = 0;
slot->resume_offset = hostdata->pScript;
dma_cache_sync(hostdata->dev, slot->SG, sizeof(slot->SG[0])*2, DMA_TO_DEVICE);
- dma_cache_sync(hostdata->dev, SCp->sense_buffer, sizeof(SCp->sense_buffer), DMA_FROM_DEVICE);
+ dma_cache_sync(hostdata->dev, SCp->sense_buffer, SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE);
/* queue the command for reissue */
slot->state = NCR_700_SLOT_QUEUED;
@@ -1490,7 +1488,7 @@ NCR_700_intr(int irq, void *dev_id)
unsigned long flags;
int handled = 0;
- /* Use the host lock to serialise acess to the 53c700
+ /* Use the host lock to serialise access to the 53c700
* hardware. Note: In future, we may need to take the queue
* lock to enter the done routines. When that happens, we
* need to ensure that for this driver, the host lock and the
@@ -1750,8 +1748,8 @@ NCR_700_intr(int irq, void *dev_id)
return IRQ_RETVAL(handled);
}
-STATIC int
-NCR_700_queuecommand(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *))
+static int
+NCR_700_queuecommand_lck(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *))
{
struct NCR_700_Host_Parameters *hostdata =
(struct NCR_700_Host_Parameters *)SCp->device->host->hostdata[0];
@@ -1900,11 +1898,13 @@ NCR_700_queuecommand(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *))
}
slot->resume_offset = 0;
slot->pCmd = dma_map_single(hostdata->dev, SCp->cmnd,
- sizeof(SCp->cmnd), DMA_TO_DEVICE);
+ MAX_COMMAND_SIZE, DMA_TO_DEVICE);
NCR_700_start_command(SCp);
return 0;
}
+STATIC DEF_SCSI_QCMD(NCR_700_queuecommand)
+
STATIC int
NCR_700_abort(struct scsi_cmnd * SCp)
{
@@ -2081,8 +2081,11 @@ NCR_700_slave_destroy(struct scsi_device *SDp)
}
static int
-NCR_700_change_queue_depth(struct scsi_device *SDp, int depth)
+NCR_700_change_queue_depth(struct scsi_device *SDp, int depth, int reason)
{
+ if (reason != SCSI_QDEPTH_DEFAULT)
+ return -EOPNOTSUPP;
+
if (depth > NCR_700_MAX_TAGS)
depth = NCR_700_MAX_TAGS;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-12 13:40:18 +0000