* */
#define NCR_700_VERSION "2.8"
-#include <linux/config.h>
#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>
#include <linux/completion.h>
-#include <linux/sched.h>
#include <linux/init.h>
#include <linux/proc_fs.h>
#include <linux/blkdev.h>
#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);
STATIC void NCR_700_chip_setup(struct Scsi_Host *host);
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[];
"MSG IN",
};
-static __u8 NCR_700_SDTR_msg[] = {
- 0x01, /* Extended message */
- 0x03, /* Extended message Length */
- 0x01, /* SDTR Extended message */
- NCR_700_MIN_PERIOD,
- NCR_700_MAX_OFFSET
-};
-
/* This translates the SDTR message offset and period to a value
* which can be loaded into the SXFER_REG.
*
return 0;
if(period < hostdata->min_period) {
- printk(KERN_WARNING "53c700: Period %dns is less than this chip's minimum, setting to %d\n", period*4, NCR_700_SDTR_msg[3]*4);
+ printk(KERN_WARNING "53c700: Period %dns is less than this chip's minimum, setting to %d\n", period*4, NCR_700_MIN_PERIOD*4);
period = hostdata->min_period;
}
XFERP = (period*4 * hostdata->sync_clock)/1000 - 4;
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;
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(pScript) && L1_CACHE_BYTES < dma_get_cache_alignment());
hostdata->slots = (struct NCR_700_command_slot *)(memory + SLOTS_OFFSET);
hostdata->dev = dev;
-
+
pSlots = pScript + SLOTS_OFFSET;
/* Fill in the missing routines from the host template */
tpnt->use_clustering = ENABLE_CLUSTERING;
tpnt->slave_configure = NCR_700_slave_configure;
tpnt->slave_destroy = NCR_700_slave_destroy;
+ tpnt->slave_alloc = NCR_700_slave_alloc;
tpnt->change_queue_depth = NCR_700_change_queue_depth;
tpnt->change_queue_type = NCR_700_change_queue_type;
-
+
if(tpnt->name == NULL)
tpnt->name = "53c700";
if(tpnt->proc_name == NULL)
tpnt->proc_name = "53c700";
-
host = scsi_host_alloc(tpnt, 4);
if (!host)
return NULL;
memset(hostdata->slots, 0, sizeof(struct NCR_700_command_slot)
* NCR_700_COMMAND_SLOTS_PER_HOST);
- for(j = 0; j < NCR_700_COMMAND_SLOTS_PER_HOST; j++) {
+ for (j = 0; j < NCR_700_COMMAND_SLOTS_PER_HOST; j++) {
dma_addr_t offset = (dma_addr_t)((unsigned long)&hostdata->slots[j].SG[0]
- (unsigned long)&hostdata->slots[0].SG[0]);
hostdata->slots[j].pSG = (struct NCR_700_SG_List *)((unsigned long)(pSlots + offset));
hostdata->slots[j].state = NCR_700_SLOT_FREE;
}
- for(j = 0; j < sizeof(SCRIPT)/sizeof(SCRIPT[0]); j++) {
+ for (j = 0; j < ARRAY_SIZE(SCRIPT); j++)
script[j] = bS_to_host(SCRIPT[j]);
- }
/* adjust all labels to be bus physical */
- for(j = 0; j < PATCHES; j++) {
+ for (j = 0; j < PATCHES; j++)
script[LABELPATCHES[j]] = bS_to_host(pScript + SCRIPT[LABELPATCHES[j]]);
- }
/* now patch up fixed addresses. */
- script_patch_32(script, MessageLocation,
+ script_patch_32(hostdata->dev, script, MessageLocation,
pScript + MSGOUT_OFFSET);
- script_patch_32(script, StatusAddress,
+ script_patch_32(hostdata->dev, script, StatusAddress,
pScript + STATUS_OFFSET);
- script_patch_32(script, ReceiveMsgAddress,
+ script_patch_32(hostdata->dev, script, ReceiveMsgAddress,
pScript + MSGIN_OFFSET);
hostdata->script = script;
dma_sync_single_for_device(hostdata->dev, pScript, sizeof(SCRIPT), DMA_TO_DEVICE);
hostdata->state = NCR_700_HOST_FREE;
hostdata->cmd = NULL;
- host->max_id = 7;
+ host->max_id = 8;
host->max_lun = NCR_700_MAX_LUNS;
BUG_ON(NCR_700_transport_template == NULL);
host->transportt = NCR_700_transport_template;
host->hostdata[0] = (unsigned long)hostdata;
/* kick the chip */
NCR_700_writeb(0xff, host, CTEST9_REG);
- if(hostdata->chip710)
+ if (hostdata->chip710)
hostdata->rev = (NCR_700_readb(host, CTEST8_REG)>>4) & 0x0f;
else
hostdata->rev = (NCR_700_readb(host, CTEST7_REG)>>4) & 0x0f;
hostdata->fast = (NCR_700_readb(host, CTEST9_REG) == 0);
- if(banner == 0) {
+ if (banner == 0) {
printk(KERN_NOTICE "53c700: Version " NCR_700_VERSION " By James.Bottomley@HansenPartnership.com\n");
banner = 1;
}
printk(KERN_NOTICE "scsi%d: %s rev %d %s\n", host->host_no,
- hostdata->chip710 ? "53c710" :
+ hostdata->chip710 ? "53c710" :
(hostdata->fast ? "53c700-66" : "53c700"),
hostdata->rev, hostdata->differential ?
"(Differential)" : "");
* finish routine. If we cannot queue the command when it
* is properly build, we then change to NCR_700_SLOT_QUEUED */
slot->state = NCR_700_SLOT_BUSY;
+ slot->flags = 0;
hostdata->command_slot_count++;
return slot;
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->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
struct NCR_700_command_slot *slot =
(struct NCR_700_command_slot *)SCp->host_scribble;
- NCR_700_unmap(hostdata, SCp, slot);
dma_unmap_single(hostdata->dev, slot->pCmd,
- sizeof(SCp->cmnd), DMA_TO_DEVICE);
- if(SCp->cmnd[0] == REQUEST_SENSE && SCp->cmnd[6] == NCR_700_INTERNAL_SENSE_MAGIC) {
+ 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
printk(" ORIGINAL CMD %p RETURNED %d, new return is %d sense is\n",
SCp, SCp->cmnd[7], result);
scsi_print_sense("53c700", SCp);
#endif
+ 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)
- result = SCp->cmnd[7];
- /* now restore the original command */
- memcpy((void *) SCp->cmnd, (void *) SCp->data_cmnd,
- sizeof(SCp->data_cmnd));
- SCp->request_buffer = SCp->buffer;
- SCp->request_bufflen = SCp->bufflen;
- SCp->use_sg = SCp->old_use_sg;
- SCp->cmd_len = SCp->old_cmd_len;
- SCp->sc_data_direction = SCp->sc_old_data_direction;
- SCp->underflow = SCp->old_underflow;
-
- }
+ if (result == 0)
+ result = cmnd[7];
+ /* restore the original length */
+ SCp->cmd_len = cmnd[8];
+ } else
+ NCR_700_unmap(hostdata, SCp, slot);
+
free_slot(slot, hostdata);
#ifdef NCR_700_DEBUG
if(NCR_700_get_depth(SCp->device) == 0 ||
{
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);
if(hostdata->chip710) {
- __u8 burst_disable = hostdata->burst_disable
- ? BURST_DISABLE : 0;
- dcntl_extra = COMPAT_700_MODE;
+ __u8 burst_disable = 0;
+ __u8 burst_length = 0;
+
+ switch (hostdata->burst_length) {
+ case 1:
+ burst_length = BURST_LENGTH_1;
+ break;
+ case 2:
+ burst_length = BURST_LENGTH_2;
+ break;
+ case 4:
+ burst_length = BURST_LENGTH_4;
+ break;
+ case 8:
+ burst_length = BURST_LENGTH_8;
+ break;
+ default:
+ burst_disable = BURST_DISABLE;
+ break;
+ }
+ hostdata->dcntl_extra |= COMPAT_700_MODE;
- NCR_700_writeb(dcntl_extra, host, DCNTL_REG);
- NCR_700_writeb(BURST_LENGTH_8 | hostdata->dmode_extra,
+ 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);
* 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;
/* 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;
}
shost_printk(KERN_WARNING, host,
"Unexpected SDTR msg\n");
hostdata->msgout[0] = A_REJECT_MSG;
- dma_cache_sync(hostdata->msgout, 1, DMA_TO_DEVICE);
- script_patch_16(hostdata->script, MessageCount, 1);
+ dma_cache_sync(hostdata->dev, hostdata->msgout, 1, DMA_TO_DEVICE);
+ script_patch_16(hostdata->dev, hostdata->script,
+ MessageCount, 1);
/* SendMsgOut returns, so set up the return
* address */
resume_offset = hostdata->pScript + Ent_SendMessageWithATN;
printk(KERN_INFO "scsi%d: (%d:%d), Unsolicited WDTR after CMD, Rejecting\n",
host->host_no, pun, lun);
hostdata->msgout[0] = A_REJECT_MSG;
- dma_cache_sync(hostdata->msgout, 1, DMA_TO_DEVICE);
- script_patch_16(hostdata->script, MessageCount, 1);
+ dma_cache_sync(hostdata->dev, hostdata->msgout, 1, DMA_TO_DEVICE);
+ script_patch_16(hostdata->dev, hostdata->script, MessageCount,
+ 1);
resume_offset = hostdata->pScript + Ent_SendMessageWithATN;
break;
printk(KERN_INFO "scsi%d (%d:%d): Unexpected message %s: ",
host->host_no, pun, lun,
NCR_700_phase[(dsps & 0xf00) >> 8]);
- scsi_print_msg(hostdata->msgin);
+ spi_print_msg(hostdata->msgin);
printk("\n");
/* just reject it */
hostdata->msgout[0] = A_REJECT_MSG;
- dma_cache_sync(hostdata->msgout, 1, DMA_TO_DEVICE);
- script_patch_16(hostdata->script, MessageCount, 1);
+ dma_cache_sync(hostdata->dev, hostdata->msgout, 1, DMA_TO_DEVICE);
+ script_patch_16(hostdata->dev, hostdata->script, MessageCount,
+ 1);
/* SendMsgOut returns, so set up the return
* address */
resume_offset = hostdata->pScript + Ent_SendMessageWithATN;
#ifdef NCR_700_DEBUG
printk("scsi%d (%d:%d): message %s: ", host->host_no, pun, lun,
NCR_700_phase[(dsps & 0xf00) >> 8]);
- scsi_print_msg(hostdata->msgin);
+ spi_print_msg(hostdata->msgin);
printk("\n");
#endif
host->host_no, pun, lun,
NCR_700_phase[(dsps & 0xf00) >> 8]);
- scsi_print_msg(hostdata->msgin);
+ spi_print_msg(hostdata->msgin);
printk("\n");
/* just reject it */
hostdata->msgout[0] = A_REJECT_MSG;
- dma_cache_sync(hostdata->msgout, 1, DMA_TO_DEVICE);
- script_patch_16(hostdata->script, MessageCount, 1);
+ dma_cache_sync(hostdata->dev, hostdata->msgout, 1, DMA_TO_DEVICE);
+ script_patch_16(hostdata->dev, hostdata->script, MessageCount,
+ 1);
/* SendMsgOut returns, so set up the return
* address */
resume_offset = hostdata->pScript + Ent_SendMessageWithATN;
}
NCR_700_writel(temp, host, TEMP_REG);
/* set us up to receive another message */
- dma_cache_sync(hostdata->msgin, MSG_ARRAY_SIZE, DMA_FROM_DEVICE);
+ dma_cache_sync(hostdata->dev, hostdata->msgin, MSG_ARRAY_SIZE, DMA_FROM_DEVICE);
return resume_offset;
}
status_byte(hostdata->status[0]) == COMMAND_TERMINATED) {
struct NCR_700_command_slot *slot =
(struct NCR_700_command_slot *)SCp->host_scribble;
- if(SCp->cmnd[0] == REQUEST_SENSE) {
+ if(slot->flags == NCR_700_FLAG_AUTOSENSE) {
/* OOPS: bad device, returning another
* contingent allegiance condition */
scmd_printk(KERN_ERR, SCp,
"broken device is looping in contingent allegiance: ignoring\n");
NCR_700_scsi_done(hostdata, SCp, hostdata->status[0]);
} else {
+ char *cmnd =
+ NCR_700_get_sense_cmnd(SCp->device);
#ifdef NCR_DEBUG
scsi_print_command(SCp);
printk(" cmd %p has status %d, requesting sense\n",
* data associated with the command
* here */
NCR_700_unmap(hostdata, SCp, slot);
-
- SCp->cmnd[0] = REQUEST_SENSE;
- SCp->cmnd[1] = (SCp->device->lun & 0x7) << 5;
- SCp->cmnd[2] = 0;
- SCp->cmnd[3] = 0;
- SCp->cmnd[4] = sizeof(SCp->sense_buffer);
- SCp->cmnd[5] = 0;
- SCp->cmd_len = 6;
+ dma_unmap_single(hostdata->dev, slot->pCmd,
+ 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] = SCSI_SENSE_BUFFERSIZE;
+ cmnd[5] = 0;
/* Here's a quiet hack: the
* REQUEST_SENSE command is six bytes,
* so store a flag indicating that
* this was an internal sense request
* and the original status at the end
* of the command */
- SCp->cmnd[6] = NCR_700_INTERNAL_SENSE_MAGIC;
- SCp->cmnd[7] = hostdata->status[0];
- SCp->use_sg = 0;
- SCp->sc_data_direction = DMA_FROM_DEVICE;
- dma_sync_single_for_device(hostdata->dev, slot->pCmd,
- SCp->cmd_len, DMA_TO_DEVICE);
- SCp->request_bufflen = sizeof(SCp->sense_buffer);
- 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));
+ cmnd[6] = NCR_700_INTERNAL_SENSE_MAGIC;
+ cmnd[7] = hostdata->status[0];
+ cmnd[8] = SCp->cmd_len;
+ 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, 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(slot->SG, sizeof(slot->SG[0])*2, DMA_TO_DEVICE);
- dma_cache_sync(SCp->sense_buffer, sizeof(SCp->sense_buffer), DMA_FROM_DEVICE);
-
+ dma_cache_sync(hostdata->dev, slot->SG, sizeof(slot->SG[0])*2, DMA_TO_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;
+ slot->flags = NCR_700_FLAG_AUTOSENSE;
hostdata->state = NCR_700_HOST_FREE;
hostdata->cmd = NULL;
}
hostdata->cmd = slot->cmnd;
/* re-patch for this command */
- script_patch_32_abs(hostdata->script, CommandAddress,
- slot->pCmd);
- script_patch_16(hostdata->script,
+ script_patch_32_abs(hostdata->dev, hostdata->script,
+ CommandAddress, slot->pCmd);
+ script_patch_16(hostdata->dev, hostdata->script,
CommandCount, slot->cmnd->cmd_len);
- script_patch_32_abs(hostdata->script, SGScriptStartAddress,
+ script_patch_32_abs(hostdata->dev, hostdata->script,
+ SGScriptStartAddress,
to32bit(&slot->pSG[0].ins));
/* Note: setting SXFER only works if we're
* should therefore always clear ACK */
NCR_700_writeb(NCR_700_get_SXFER(hostdata->cmd->device),
host, SXFER_REG);
- dma_cache_sync(hostdata->msgin,
+ dma_cache_sync(hostdata->dev, hostdata->msgin,
MSG_ARRAY_SIZE, DMA_FROM_DEVICE);
- dma_cache_sync(hostdata->msgout,
+ dma_cache_sync(hostdata->dev, hostdata->msgout,
MSG_ARRAY_SIZE, DMA_TO_DEVICE);
/* I'm just being paranoid here, the command should
* already have been flushed from the cache */
- dma_cache_sync(slot->cmnd->cmnd,
+ dma_cache_sync(hostdata->dev, slot->cmnd->cmnd,
slot->cmnd->cmd_len, DMA_TO_DEVICE);
hostdata->reselection_id = reselection_id;
/* just in case we have a stale simple tag message, clear it */
hostdata->msgin[1] = 0;
- dma_cache_sync(hostdata->msgin,
+ dma_cache_sync(hostdata->dev, hostdata->msgin,
MSG_ARRAY_SIZE, DMA_BIDIRECTIONAL);
if(hostdata->tag_negotiated & (1<<reselection_id)) {
resume_offset = hostdata->pScript + Ent_GetReselectionWithTag;
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->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",
hostdata->cmd = NULL;
/* clear any stale simple tag message */
hostdata->msgin[1] = 0;
- dma_cache_sync(hostdata->msgin, MSG_ARRAY_SIZE,
+ dma_cache_sync(hostdata->dev, hostdata->msgin, MSG_ARRAY_SIZE,
DMA_BIDIRECTIONAL);
if(id == 0xff) {
/* keep interrupts disabled until we have the command correctly
* set up so we cannot take a selection interrupt */
- hostdata->msgout[0] = NCR_700_identify(SCp->cmnd[0] != REQUEST_SENSE,
+ hostdata->msgout[0] = NCR_700_identify((SCp->cmnd[0] != REQUEST_SENSE &&
+ slot->flags != NCR_700_FLAG_AUTOSENSE),
SCp->device->lun);
/* for INQUIRY or REQUEST_SENSE commands, we cannot be sure
* if the negotiated transfer parameters still hold, so
* always renegotiate them */
- if(SCp->cmnd[0] == INQUIRY || SCp->cmnd[0] == REQUEST_SENSE) {
+ if(SCp->cmnd[0] == INQUIRY || SCp->cmnd[0] == REQUEST_SENSE ||
+ slot->flags == NCR_700_FLAG_AUTOSENSE) {
NCR_700_clear_flag(SCp->device, NCR_700_DEV_NEGOTIATED_SYNC);
}
* will refuse all tags, so send the request sense as untagged
* */
if((hostdata->tag_negotiated & (1<<scmd_id(SCp)))
- && (slot->tag != SCSI_NO_TAG && SCp->cmnd[0] != REQUEST_SENSE)) {
+ && (slot->tag != SCSI_NO_TAG && SCp->cmnd[0] != REQUEST_SENSE &&
+ slot->flags != NCR_700_FLAG_AUTOSENSE)) {
count += scsi_populate_tag_msg(SCp, &hostdata->msgout[count]);
}
if(hostdata->fast &&
NCR_700_is_flag_clear(SCp->device, NCR_700_DEV_NEGOTIATED_SYNC)) {
- memcpy(&hostdata->msgout[count], NCR_700_SDTR_msg,
- sizeof(NCR_700_SDTR_msg));
- hostdata->msgout[count+3] = spi_period(SCp->device->sdev_target);
- hostdata->msgout[count+4] = spi_offset(SCp->device->sdev_target);
- count += sizeof(NCR_700_SDTR_msg);
+ count += spi_populate_sync_msg(&hostdata->msgout[count],
+ spi_period(SCp->device->sdev_target),
+ spi_offset(SCp->device->sdev_target));
NCR_700_set_flag(SCp->device, NCR_700_DEV_BEGIN_SYNC_NEGOTIATION);
}
- script_patch_16(hostdata->script, MessageCount, count);
+ script_patch_16(hostdata->dev, hostdata->script, MessageCount, count);
- script_patch_ID(hostdata->script,
+ script_patch_ID(hostdata->dev, hostdata->script,
Device_ID, 1<<scmd_id(SCp));
- script_patch_32_abs(hostdata->script, CommandAddress,
+ script_patch_32_abs(hostdata->dev, hostdata->script, CommandAddress,
slot->pCmd);
- script_patch_16(hostdata->script, CommandCount, SCp->cmd_len);
+ script_patch_16(hostdata->dev, hostdata->script, CommandCount,
+ SCp->cmd_len);
/* finally plumb the beginning of the SG list into the script
* */
- script_patch_32_abs(hostdata->script, SGScriptStartAddress,
- to32bit(&slot->pSG[0].ins));
+ script_patch_32_abs(hostdata->dev, hostdata->script,
+ SGScriptStartAddress, to32bit(&slot->pSG[0].ins));
NCR_700_clear_fifo(SCp->device->host);
if(slot->resume_offset == 0)
slot->resume_offset = hostdata->pScript;
/* now perform all the writebacks and invalidates */
- dma_cache_sync(hostdata->msgout, count, DMA_TO_DEVICE);
- dma_cache_sync(hostdata->msgin, MSG_ARRAY_SIZE,
+ dma_cache_sync(hostdata->dev, hostdata->msgout, count, DMA_TO_DEVICE);
+ dma_cache_sync(hostdata->dev, hostdata->msgin, MSG_ARRAY_SIZE,
DMA_FROM_DEVICE);
- dma_cache_sync(SCp->cmnd, SCp->cmd_len, DMA_TO_DEVICE);
- dma_cache_sync(hostdata->status, 1, DMA_FROM_DEVICE);
+ dma_cache_sync(hostdata->dev, SCp->cmnd, SCp->cmd_len, DMA_TO_DEVICE);
+ dma_cache_sync(hostdata->dev, hostdata->status, 1, DMA_FROM_DEVICE);
/* set the synchronous period/offset */
NCR_700_writeb(NCR_700_get_SXFER(SCp->device),
}
irqreturn_t
-NCR_700_intr(int irq, void *dev_id, struct pt_regs *regs)
+NCR_700_intr(int irq, void *dev_id)
{
struct Scsi_Host *host = (struct Scsi_Host *)dev_id;
struct NCR_700_Host_Parameters *hostdata =
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
/* clear all the negotiated parameters */
__shost_for_each_device(SDp, host)
- SDp->hostdata = NULL;
+ NCR_700_clear_flag(SDp, ~0);
/* clear all the slots and their pending commands */
for(i = 0; i < NCR_700_COMMAND_SLOTS_PER_HOST; i++) {
slot->SG[i].ins = bS_to_host(SCRIPT_NOP);
slot->SG[i].pAddr = 0;
}
- dma_cache_sync(slot->SG, sizeof(slot->SG), DMA_TO_DEVICE);
+ dma_cache_sync(hostdata->dev, slot->SG, sizeof(slot->SG), DMA_TO_DEVICE);
/* and pretend we disconnected after
* the command phase */
resume_offset = hostdata->pScript + Ent_MsgInDuringData;
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];
}
/* 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);
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->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;
- }
-
-
- for(i = 0; i < sg_count; i++) {
-
- if(SCp->use_sg) {
- struct scatterlist *sg = SCp->buffer;
+ sg_count = scsi_dma_map(SCp);
+ BUG_ON(sg_count < 0);
- 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",
}
slot->SG[i].ins = bS_to_host(SCRIPT_RETURN);
slot->SG[i].pAddr = 0;
- dma_cache_sync(slot->SG, sizeof(slot->SG), DMA_TO_DEVICE);
+ dma_cache_sync(hostdata->dev, slot->SG, sizeof(slot->SG), DMA_TO_DEVICE);
DEBUG((" SETTING %08lx to %x\n",
- (&slot->pSG[i].ins),
+ (&slot->pSG[i].ins),
slot->SG[i].ins));
}
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)
{
STATIC int
NCR_700_bus_reset(struct scsi_cmnd * SCp)
{
- DECLARE_COMPLETION(complete);
+ DECLARE_COMPLETION_ONSTACK(complete);
struct NCR_700_Host_Parameters *hostdata =
(struct NCR_700_Host_Parameters *)SCp->device->host->hostdata[0];
spi_flags(STp) |= NCR_700_DEV_PRINT_SYNC_NEGOTIATION;
}
+STATIC int
+NCR_700_slave_alloc(struct scsi_device *SDp)
+{
+ SDp->hostdata = kzalloc(sizeof(struct NCR_700_Device_Parameters),
+ GFP_KERNEL);
+
+ if (!SDp->hostdata)
+ return -ENOMEM;
+ return 0;
+}
STATIC int
NCR_700_slave_configure(struct scsi_device *SDp)
STATIC void
NCR_700_slave_destroy(struct scsi_device *SDp)
{
- /* to do here: deallocate memory */
+ kfree(SDp->hostdata);
+ SDp->hostdata = NULL;
}
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;
Code Review / linux-2.6.git / blobdiff