};
/**
- * i2o_block_issue_flush - device-flush interface for block-layer
- * @queue: the request queue of the device which should be flushed
- * @disk: gendisk
- * @error_sector: error offset
- *
- * Helper function to provide flush functionality to block-layer.
- *
- * Returns 0 on success or negative error code on failure.
- */
-
-static int i2o_block_issue_flush(request_queue_t * queue, struct gendisk *disk,
- sector_t * error_sector)
-{
- struct i2o_block_device *i2o_blk_dev = queue->queuedata;
- int rc = -ENODEV;
-
- if (likely(i2o_blk_dev))
- rc = i2o_block_device_flush(i2o_blk_dev->i2o_dev);
-
- return rc;
-}
-
-/**
* i2o_block_device_mount - Mount (load) the media of device dev
* @dev: I2O device which should receive the mount request
* @media_id: Media Identifier
struct i2o_message *msg;
msg = i2o_msg_get_wait(dev->iop, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg) == I2O_QUEUE_EMPTY)
+ if (IS_ERR(msg))
return PTR_ERR(msg);
msg->u.head[0] = cpu_to_le32(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0);
/**
* i2o_block_device_power - Power management for device dev
* @dev: I2O device which should receive the power management request
- * @operation: Operation which should be send
+ * @op: Operation to send
*
* Send a power management request to the device dev.
*
return ERR_PTR(-ENOMEM);
INIT_LIST_HEAD(&ireq->queue);
+ sg_init_table(ireq->sg_table, I2O_MAX_PHYS_SEGMENTS);
return ireq;
};
* i2o_block_request_free - Frees a I2O block request
* @ireq: I2O block request which should be freed
*
- * Fres the allocated memory (give it back to the request mempool).
+ * Frees the allocated memory (give it back to the request mempool).
*/
static inline void i2o_block_request_free(struct i2o_block_request *ireq)
{
* i2o_block_sglist_alloc - Allocate the SG list and map it
* @c: I2O controller to which the request belongs
* @ireq: I2O block request
+ * @mptr: message body pointer
*
* Builds the SG list and map it to be accessable by the controller.
*
* @req: the request to prepare
*
* Allocate the necessary i2o_block_request struct and connect it to
- * the request. This is needed that we not loose the SG list later on.
+ * the request. This is needed that we not lose the SG list later on.
*
* Returns BLKPREP_OK on success or BLKPREP_DEFER on failure.
*/
return BLKPREP_KILL;
}
- /* request is already processed by us, so return */
- if (blk_special_request(req)) {
- osm_debug("REQ_SPECIAL already set!\n");
- req->cmd_flags |= REQ_DONTPREP;
- return BLKPREP_OK;
- }
-
/* connect the i2o_block_request to the request */
if (!req->special) {
ireq = i2o_block_request_alloc();
- if (unlikely(IS_ERR(ireq))) {
+ if (IS_ERR(ireq)) {
osm_debug("unable to allocate i2o_block_request!\n");
return BLKPREP_DEFER;
}
ireq->i2o_blk_dev = i2o_blk_dev;
req->special = ireq;
ireq->req = req;
- } else
- ireq = req->special;
-
+ }
/* do not come back here */
- req->cmd_type = REQ_TYPE_SPECIAL;
req->cmd_flags |= REQ_DONTPREP;
return BLKPREP_OK;
/**
* i2o_block_delayed_request_fn - delayed request queue function
- * delayed_request: the delayed request with the queue to start
+ * @work: the delayed request with the queue to start
*
* If the request queue is stopped for a disk, and there is no open
* request, a new event is created, which calls this function to start
* the queue after I2O_BLOCK_REQUEST_TIME. Otherwise the queue will never
* be started again.
*/
-static void i2o_block_delayed_request_fn(void *delayed_request)
+static void i2o_block_delayed_request_fn(struct work_struct *work)
{
- struct i2o_block_delayed_request *dreq = delayed_request;
+ struct i2o_block_delayed_request *dreq =
+ container_of(work, struct i2o_block_delayed_request,
+ work.work);
struct request_queue *q = dreq->queue;
unsigned long flags;
/**
* i2o_block_end_request - Post-processing of completed commands
* @req: request which should be completed
- * @uptodate: 1 for success, 0 for I/O error, < 0 for specific error
+ * @error: 0 for success, < 0 for error
* @nr_bytes: number of bytes to complete
*
* Mark the request as complete. The lock must not be held when entering.
*
*/
-static void i2o_block_end_request(struct request *req, int uptodate,
+static void i2o_block_end_request(struct request *req, int error,
int nr_bytes)
{
struct i2o_block_request *ireq = req->special;
struct i2o_block_device *dev = ireq->i2o_blk_dev;
- request_queue_t *q = req->q;
+ struct request_queue *q = req->q;
unsigned long flags;
- if (end_that_request_chunk(req, uptodate, nr_bytes)) {
- int leftover = (req->hard_nr_sectors << KERNEL_SECTOR_SHIFT);
-
- if (blk_pc_request(req))
- leftover = req->data_len;
-
- if (end_io_error(uptodate))
- end_that_request_chunk(req, 0, leftover);
- }
-
- add_disk_randomness(req->rq_disk);
+ if (blk_end_request(req, error, nr_bytes))
+ if (error)
+ blk_end_request_all(req, -EIO);
spin_lock_irqsave(q->queue_lock, flags);
- end_that_request_last(req, uptodate);
-
if (likely(dev)) {
dev->open_queue_depth--;
list_del(&ireq->queue);
* i2o_block_reply - Block OSM reply handler.
* @c: I2O controller from which the message arrives
* @m: message id of reply
- * qmsg: the actuall I2O message reply
+ * @msg: the actual I2O message reply
*
* This function gets all the message replies.
*
struct i2o_message *msg)
{
struct request *req;
- int uptodate = 1;
+ int error = 0;
req = i2o_cntxt_list_get(c, le32_to_cpu(msg->u.s.tcntxt));
if (unlikely(!req)) {
req->errors++;
- uptodate = 0;
+ error = -EIO;
}
- i2o_block_end_request(req, uptodate, le32_to_cpu(msg->body[1]));
+ i2o_block_end_request(req, error, le32_to_cpu(msg->body[1]));
return 1;
};
-static void i2o_block_event(struct i2o_event *evt)
+static void i2o_block_event(struct work_struct *work)
{
+ struct i2o_event *evt = container_of(work, struct i2o_event, work);
osm_debug("event received\n");
kfree(evt);
};
/**
* i2o_block_open - Open the block device
+ * @bdev: block device being opened
+ * @mode: file open mode
*
* Power up the device, mount and lock the media. This function is called,
* if the block device is opened for access.
*
* Returns 0 on success or negative error code on failure.
*/
-static int i2o_block_open(struct inode *inode, struct file *file)
+static int i2o_block_open(struct block_device *bdev, fmode_t mode)
{
- struct i2o_block_device *dev = inode->i_bdev->bd_disk->private_data;
+ struct i2o_block_device *dev = bdev->bd_disk->private_data;
if (!dev->i2o_dev)
return -ENODEV;
/**
* i2o_block_release - Release the I2O block device
+ * @disk: gendisk device being released
+ * @mode: file open mode
*
* Unlock and unmount the media, and power down the device. Gets called if
* the block device is closed.
*
* Returns 0 on success or negative error code on failure.
*/
-static int i2o_block_release(struct inode *inode, struct file *file)
+static int i2o_block_release(struct gendisk *disk, fmode_t mode)
{
- struct gendisk *disk = inode->i_bdev->bd_disk;
struct i2o_block_device *dev = disk->private_data;
u8 operation;
/**
* i2o_block_ioctl - Issue device specific ioctl calls.
+ * @bdev: block device being opened
+ * @mode: file open mode
* @cmd: ioctl command
* @arg: arg
*
*
* Return 0 on success or negative error on failure.
*/
-static int i2o_block_ioctl(struct inode *inode, struct file *file,
+static int i2o_block_ioctl(struct block_device *bdev, fmode_t mode,
unsigned int cmd, unsigned long arg)
{
- struct gendisk *disk = inode->i_bdev->bd_disk;
+ struct gendisk *disk = bdev->bd_disk;
struct i2o_block_device *dev = disk->private_data;
/* Anyone capable of this syscall can do *real bad* things */
{
struct i2o_block_device *dev = req->rq_disk->private_data;
struct i2o_controller *c;
- int tid = dev->i2o_dev->lct_data.tid;
+ u32 tid = dev->i2o_dev->lct_data.tid;
struct i2o_message *msg;
u32 *mptr;
struct i2o_block_request *ireq = req->special;
break;
case CACHE_SMARTFETCH:
- if (req->nr_sectors > 16)
+ if (blk_rq_sectors(req) > 16)
ctl_flags = 0x201F0008;
else
ctl_flags = 0x001F0000;
ctl_flags = 0x001F0010;
break;
case CACHE_SMARTBACK:
- if (req->nr_sectors > 16)
+ if (blk_rq_sectors(req) > 16)
ctl_flags = 0x001F0004;
else
ctl_flags = 0x001F0010;
break;
case CACHE_SMARTTHROUGH:
- if (req->nr_sectors > 16)
+ if (blk_rq_sectors(req) > 16)
ctl_flags = 0x001F0004;
else
ctl_flags = 0x001F0010;
*mptr++ = cpu_to_le32(scsi_flags);
- *((u32 *) & cmd[2]) = cpu_to_be32(req->sector * hwsec);
- *((u16 *) & cmd[7]) = cpu_to_be16(req->nr_sectors * hwsec);
+ *((u32 *) & cmd[2]) = cpu_to_be32(blk_rq_pos(req) * hwsec);
+ *((u16 *) & cmd[7]) = cpu_to_be16(blk_rq_sectors(req) * hwsec);
memcpy(mptr, cmd, 10);
mptr += 4;
- *mptr++ = cpu_to_le32(req->nr_sectors << KERNEL_SECTOR_SHIFT);
+ *mptr++ = cpu_to_le32(blk_rq_bytes(req));
} else
#endif
{
msg->u.head[1] = cpu_to_le32(cmd | HOST_TID << 12 | tid);
*mptr++ = cpu_to_le32(ctl_flags);
- *mptr++ = cpu_to_le32(req->nr_sectors << KERNEL_SECTOR_SHIFT);
+ *mptr++ = cpu_to_le32(blk_rq_bytes(req));
*mptr++ =
- cpu_to_le32((u32) (req->sector << KERNEL_SECTOR_SHIFT));
+ cpu_to_le32((u32) (blk_rq_pos(req) << KERNEL_SECTOR_SHIFT));
*mptr++ =
- cpu_to_le32(req->sector >> (32 - KERNEL_SECTOR_SHIFT));
+ cpu_to_le32(blk_rq_pos(req) >> (32 - KERNEL_SECTOR_SHIFT));
}
if (!i2o_block_sglist_alloc(c, ireq, &mptr)) {
/**
* i2o_block_request_fn - request queue handling function
- * q: request queue from which the request could be fetched
+ * @q: request queue from which the request could be fetched
*
* Takes the next request from the queue, transfers it and if no error
* occurs dequeue it from the queue. On arrival of the reply the message
struct request *req;
while (!blk_queue_plugged(q)) {
- req = elv_next_request(q);
+ req = blk_peek_request(q);
if (!req)
break;
if (queue_depth < I2O_BLOCK_MAX_OPEN_REQUESTS) {
if (!i2o_block_transfer(req)) {
- blkdev_dequeue_request(req);
+ blk_start_request(req);
continue;
} else
osm_info("transfer error\n");
continue;
dreq->queue = q;
- INIT_WORK(&dreq->work, i2o_block_delayed_request_fn,
- dreq);
+ INIT_DELAYED_WORK(&dreq->work,
+ i2o_block_delayed_request_fn);
if (!queue_delayed_work(i2o_block_driver.event_queue,
&dreq->work,
blk_stop_queue(q);
break;
}
- } else
- end_request(req, 0);
+ } else {
+ blk_start_request(req);
+ __blk_end_request_all(req, -EIO);
+ }
}
};
.owner = THIS_MODULE,
.open = i2o_block_open,
.release = i2o_block_release,
- .ioctl = i2o_block_ioctl,
+ .locked_ioctl = i2o_block_ioctl,
.getgeo = i2o_block_getgeo,
.media_changed = i2o_block_media_changed
};
}
blk_queue_prep_rq(queue, i2o_block_prep_req_fn);
- blk_queue_issue_flush_fn(queue, i2o_block_issue_flush);
gd->major = I2O_MAJOR;
gd->queue = queue;
blk_queue_max_sectors(queue, max_sectors);
blk_queue_max_hw_segments(queue, i2o_sg_tablesize(c, body_size));
- osm_debug("max sectors = %d\n", queue->max_phys_segments);
- osm_debug("phys segments = %d\n", queue->max_sectors);
+ osm_debug("max sectors = %d\n", queue->max_sectors);
+ osm_debug("phys segments = %d\n", queue->max_phys_segments);
osm_debug("max hw segments = %d\n", queue->max_hw_segments);
/*
/* Allocate request mempool and slab */
size = sizeof(struct i2o_block_request);
i2o_blk_req_pool.slab = kmem_cache_create("i2o_block_req", size, 0,
- SLAB_HWCACHE_ALIGN, NULL,
- NULL);
+ SLAB_HWCACHE_ALIGN, NULL);
if (!i2o_blk_req_pool.slab) {
osm_err("can't init request slab\n");
rc = -ENOMEM;
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff