#include <linux/blkdev.h>
#include <asm/uaccess.h>
#include <asm/io.h>
+#include <linux/completion.h>
#include <linux/delay.h>
#include <linux/proc_fs.h>
#include <linux/reboot.h>
if(islogical) {
switch (cmd->cmnd[0]) {
case TEST_UNIT_READY:
- memset(cmd->request_buffer, 0, cmd->request_bufflen);
-
#if MEGA_HAVE_CLUSTERING
/*
* Do we support clustering and is the support enabled
return NULL;
#endif
- case MODE_SENSE:
+ case MODE_SENSE: {
+ char *buf;
+
+ if (cmd->use_sg) {
+ struct scatterlist *sg;
+
+ sg = (struct scatterlist *)cmd->request_buffer;
+ buf = kmap_atomic(sg->page, KM_IRQ0) +
+ sg->offset;
+ } else
+ buf = cmd->request_buffer;
memset(cmd->request_buffer, 0, cmd->cmnd[4]);
+ if (cmd->use_sg) {
+ struct scatterlist *sg;
+
+ sg = (struct scatterlist *)cmd->request_buffer;
+ kunmap_atomic(buf - sg->offset, KM_IRQ0);
+ }
cmd->result = (DID_OK << 16);
cmd->scsi_done(cmd);
return NULL;
+ }
case READ_CAPACITY:
case INQUIRY:
static void
mega_free_scb(adapter_t *adapter, scb_t *scb)
{
+ unsigned long length;
+
switch( scb->dma_type ) {
case MEGA_DMA_TYPE_NONE:
break;
case MEGA_BULK_DATA:
+ if (scb->cmd->use_sg == 0)
+ length = scb->cmd->request_bufflen;
+ else {
+ struct scatterlist *sgl =
+ (struct scatterlist *)scb->cmd->request_buffer;
+ length = sgl->length;
+ }
pci_unmap_page(adapter->dev, scb->dma_h_bulkdata,
- scb->cmd->request_bufflen, scb->dma_direction);
+ length, scb->dma_direction);
break;
case MEGA_SGLIST:
struct scatterlist *sgl;
struct page *page;
unsigned long offset;
+ unsigned int length;
Scsi_Cmnd *cmd;
int sgcnt;
int idx;
cmd = scb->cmd;
/* Scatter-gather not used */
- if( !cmd->use_sg ) {
-
- page = virt_to_page(cmd->request_buffer);
- offset = offset_in_page(cmd->request_buffer);
+ if( cmd->use_sg == 0 || (cmd->use_sg == 1 &&
+ !adapter->has_64bit_addr)) {
+
+ if (cmd->use_sg == 0) {
+ page = virt_to_page(cmd->request_buffer);
+ offset = offset_in_page(cmd->request_buffer);
+ length = cmd->request_bufflen;
+ } else {
+ sgl = (struct scatterlist *)cmd->request_buffer;
+ page = sgl->page;
+ offset = sgl->offset;
+ length = sgl->length;
+ }
scb->dma_h_bulkdata = pci_map_page(adapter->dev,
page, offset,
- cmd->request_bufflen,
+ length,
scb->dma_direction);
scb->dma_type = MEGA_BULK_DATA;
*/
if( adapter->has_64bit_addr ) {
scb->sgl64[0].address = scb->dma_h_bulkdata;
- scb->sgl64[0].length = cmd->request_bufflen;
+ scb->sgl64[0].length = length;
*buf = (u32)scb->sgl_dma_addr;
- *len = (u32)cmd->request_bufflen;
+ *len = (u32)length;
return 1;
}
else {
*buf = (u32)scb->dma_h_bulkdata;
- *len = (u32)cmd->request_bufflen;
+ *len = (u32)length;
}
return 0;
}
if( sgcnt > adapter->sglen ) BUG();
+ *len = 0;
+
for( idx = 0; idx < sgcnt; idx++, sgl++ ) {
if( adapter->has_64bit_addr ) {
scb->sgl64[idx].address = sg_dma_address(sgl);
- scb->sgl64[idx].length = sg_dma_len(sgl);
+ *len += scb->sgl64[idx].length = sg_dma_len(sgl);
}
else {
scb->sgl[idx].address = sg_dma_address(sgl);
- scb->sgl[idx].length = sg_dma_len(sgl);
+ *len += scb->sgl[idx].length = sg_dma_len(sgl);
}
}
/* Reset pointer and length fields */
*buf = scb->sgl_dma_addr;
- /*
- * For passthru command, dataxferlen must be set, even for commands
- * with a sg list
- */
- *len = (u32)cmd->request_bufflen;
-
/* Return count of SG requests */
return sgcnt;
}
static int
-__megaraid_reset(Scsi_Cmnd *cmd)
+megaraid_reset(struct scsi_cmnd *cmd)
{
adapter_t *adapter;
megacmd_t mc;
mc.cmd = MEGA_CLUSTER_CMD;
mc.opcode = MEGA_RESET_RESERVATIONS;
- spin_unlock_irq(&adapter->lock);
if( mega_internal_command(adapter, LOCK_INT, &mc, NULL) != 0 ) {
printk(KERN_WARNING
"megaraid: reservation reset failed.\n");
else {
printk(KERN_INFO "megaraid: reservation reset.\n");
}
- spin_lock_irq(&adapter->lock);
#endif
+ spin_lock_irq(&adapter->lock);
+
rval = megaraid_abort_and_reset(adapter, cmd, SCB_RESET);
/*
* to be communicated over to the mid layer.
*/
mega_rundoneq(adapter);
-
- return rval;
-}
-
-static int
-megaraid_reset(Scsi_Cmnd *cmd)
-{
- adapter_t *adapter = (adapter_t *)cmd->device->host->hostdata;
- int rc;
-
- spin_lock_irq(&adapter->lock);
- rc = __megaraid_reset(cmd);
spin_unlock_irq(&adapter->lock);
- return rc;
+ return rval;
}
-
/**
* megaraid_abort_and_reset()
* @adapter - megaraid soft state
scb->idx = CMDID_INT_CMDS;
- scmd->state = 0;
-
/*
* Get the lock only if the caller has not acquired it already
*/
if( ls == LOCK_INT ) spin_unlock_irqrestore(&adapter->lock, flags);
- /*
- * Wait till this command finishes. Do not use
- * wait_event_interruptible(). It causes panic if CTRL-C is hit when
- * dumping e.g., physical disk information through /proc interface.
- */
-#if 0
- wait_event_interruptible(adapter->int_waitq, scmd->state);
-#endif
- wait_event(adapter->int_waitq, scmd->state);
+ wait_for_completion(&adapter->int_waitq);
rval = scmd->result;
mc->status = scmd->result;
adapter = (adapter_t *)scmd->device->host->hostdata;
- scmd->state = 1; /* thread waiting for its command to complete */
-
- /*
- * See comment in mega_internal_command() routine for
- * wait_event_interruptible()
- */
-#if 0
- wake_up_interruptible(&adapter->int_waitq);
-#endif
- wake_up(&adapter->int_waitq);
+ complete(&adapter->int_waitq);
}
}
init_MUTEX(&adapter->int_mtx);
- init_waitqueue_head(&adapter->int_waitq);
+ init_completion(&adapter->int_waitq);
adapter->this_id = DEFAULT_INITIATOR_ID;
adapter->host->this_id = DEFAULT_INITIATOR_ID;
projects / linux-2.6-omap-h63xx.git / blobdiff