#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>
adapter_t *adapter;
scb_t *scb;
int busy=0;
+ unsigned long flags;
adapter = (adapter_t *)scmd->device->host->hostdata;
* return 0 in that case.
*/
+ spin_lock_irqsave(&adapter->lock, flags);
scb = mega_build_cmd(adapter, scmd, &busy);
if(scb) {
}
return 0;
}
+ spin_unlock_irqrestore(&adapter->lock, flags);
return busy;
}
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:
list_for_each(pos, &adapter->completed_list) {
- Scsi_Pointer* spos = (Scsi_Pointer *)pos;
+ struct scsi_pointer* spos = (struct scsi_pointer *)pos;
cmd = list_entry(spos, Scsi_Cmnd, SCp);
cmd->scsi_done(cmd);
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 ) {
+ if( mega_internal_command(adapter, &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
mc.cmd = FC_NEW_CONFIG;
mc.opcode = OP_DCMD_READ_CONFIG;
- if( mega_internal_command(adapter, LOCK_INT, &mc, NULL) ) {
+ if( mega_internal_command(adapter, &mc, NULL) ) {
len = sprintf(page, "40LD read config failed.\n");
else {
mc.cmd = NEW_READ_CONFIG_8LD;
- if( mega_internal_command(adapter, LOCK_INT, &mc, NULL) ) {
+ if( mega_internal_command(adapter, &mc, NULL) ) {
mc.cmd = READ_CONFIG_8LD;
- if( mega_internal_command(adapter, LOCK_INT, &mc,
+ if( mega_internal_command(adapter, &mc,
NULL) ){
len = sprintf(page,
/*
* Issue the command
*/
- mega_internal_command(adapter, LOCK_INT, &mc, pthru);
+ mega_internal_command(adapter, &mc, pthru);
rval = mega_n_to_m((void __user *)arg, &mc);
/*
* Issue the command
*/
- mega_internal_command(adapter, LOCK_INT, &mc, NULL);
+ mega_internal_command(adapter, &mc, NULL);
rval = mega_n_to_m((void __user *)arg, &mc);
mc.opcode = OP_DEL_LOGDRV;
mc.subopcode = logdrv;
- rval = mega_internal_command(adapter, LOCK_INT, &mc, NULL);
+ rval = mega_internal_command(adapter, &mc, NULL);
/* log this event */
if(rval) {
mc.xferaddr = (u32)dma_handle;
- if ( mega_internal_command(adapter, LOCK_INT, &mc, NULL) != 0 ) {
+ if ( mega_internal_command(adapter, &mc, NULL) != 0 ) {
return -1;
}
mc.cmd = MEGA_MBOXCMD_PASSTHRU;
mc.xferaddr = (u32)pthru_dma_handle;
- rval = mega_internal_command(adapter, LOCK_INT, &mc, pthru);
+ rval = mega_internal_command(adapter, &mc, pthru);
pci_free_consistent(pdev, sizeof(mega_passthru), pthru,
pthru_dma_handle);
/**
* mega_internal_command()
* @adapter - pointer to our soft state
- * @ls - the scope of the exclusion lock.
* @mc - the mailbox command
* @pthru - Passthru structure for DCDB commands
*
* Note: parameter 'pthru' is null for non-passthru commands.
*/
static int
-mega_internal_command(adapter_t *adapter, lockscope_t ls, megacmd_t *mc,
- mega_passthru *pthru )
+mega_internal_command(adapter_t *adapter, megacmd_t *mc, mega_passthru *pthru)
{
Scsi_Cmnd *scmd;
struct scsi_device *sdev;
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_lock_irqsave(&adapter->lock, flags);
-
megaraid_queue(scmd, mega_internal_done);
- 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;
}
static void
-megaraid_shutdown(struct device *dev)
+megaraid_shutdown(struct pci_dev *pdev)
{
- struct Scsi_Host *host = pci_get_drvdata(to_pci_dev(dev));
+ struct Scsi_Host *host = pci_get_drvdata(pdev);
adapter_t *adapter = (adapter_t *)host->hostdata;
__megaraid_shutdown(adapter);
.id_table = megaraid_pci_tbl,
.probe = megaraid_probe_one,
.remove = __devexit_p(megaraid_remove_one),
- .driver = {
- .shutdown = megaraid_shutdown,
- },
+ .shutdown = megaraid_shutdown,
};
static int __init megaraid_init(void)
projects / linux-2.6 / blobdiff