summaryrefslogtreecommitdiffstats
path: root/drivers/message/i2o/i2o_block.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/message/i2o/i2o_block.h')
-rw-r--r--drivers/message/i2o/i2o_block.h34
1 files changed, 19 insertions, 15 deletions
diff --git a/drivers/message/i2o/i2o_block.h b/drivers/message/i2o/i2o_block.h
index ddd9a15679c0..4fdaa5bda412 100644
--- a/drivers/message/i2o/i2o_block.h
+++ b/drivers/message/i2o/i2o_block.h
@@ -56,42 +56,46 @@
#define I2O_BLOCK_RETRY_TIME HZ/4
#define I2O_BLOCK_MAX_OPEN_REQUESTS 50
+/* request queue sizes */
+#define I2O_BLOCK_REQ_MEMPOOL_SIZE 32
+
+#define KERNEL_SECTOR_SHIFT 9
+#define KERNEL_SECTOR_SIZE (1 << KERNEL_SECTOR_SHIFT)
+
/* I2O Block OSM mempool struct */
struct i2o_block_mempool {
- kmem_cache_t *slab;
- mempool_t *pool;
+ kmem_cache_t *slab;
+ mempool_t *pool;
};
/* I2O Block device descriptor */
struct i2o_block_device {
struct i2o_device *i2o_dev; /* pointer to I2O device */
struct gendisk *gd;
- spinlock_t lock; /* queue lock */
+ spinlock_t lock; /* queue lock */
struct list_head open_queue; /* list of transfered, but unfinished
requests */
unsigned int open_queue_depth; /* number of requests in the queue */
- int rcache; /* read cache flags */
- int wcache; /* write cache flags */
+ int rcache; /* read cache flags */
+ int wcache; /* write cache flags */
int flags;
- int power; /* power state */
- int media_change_flag; /* media changed flag */
+ u16 power; /* power state */
+ int media_change_flag; /* media changed flag */
};
/* I2O Block device request */
-struct i2o_block_request
-{
+struct i2o_block_request {
struct list_head queue;
- struct request *req; /* corresponding request */
+ struct request *req; /* corresponding request */
struct i2o_block_device *i2o_blk_dev; /* I2O block device */
- int sg_dma_direction; /* direction of DMA buffer read/write */
- int sg_nents; /* number of SG elements */
- struct scatterlist sg_table[I2O_MAX_SEGMENTS]; /* SG table */
+ struct device *dev; /* device used for DMA */
+ int sg_nents; /* number of SG elements */
+ struct scatterlist sg_table[I2O_MAX_PHYS_SEGMENTS]; /* SG table */
};
/* I2O Block device delayed request */
-struct i2o_block_delayed_request
-{
+struct i2o_block_delayed_request {
struct work_struct work;
struct request_queue *queue;
};