/* sunvdc.c: Sun LDOM Virtual Disk Client.
*
- * Copyright (C) 2007 David S. Miller <davem@davemloft.net>
+ * Copyright (C) 2007, 2008 David S. Miller <davem@davemloft.net>
*/
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/list.h>
+#include <linux/scatterlist.h>
#include <asm/vio.h>
#include <asm/ldc.h>
u64 operations;
u32 vdisk_size;
u8 vdisk_type;
- u8 dev_no;
char disk_name[32];
return 0;
}
-static struct block_device_operations vdc_fops = {
+static const struct block_device_operations vdc_fops = {
.owner = THIS_MODULE,
.getgeo = vdc_getgeo,
};
pkt.vdisk_block_size = port->vdisk_block_size;
pkt.max_xfer_size = port->max_xfer_size;
- viodbg(HS, "SEND ATTR xfer_mode[0x%x] blksz[%u] max_xfer[%lu]\n",
+ viodbg(HS, "SEND ATTR xfer_mode[0x%x] blksz[%u] max_xfer[%llu]\n",
pkt.xfer_mode, pkt.vdisk_block_size, pkt.max_xfer_size);
return vio_ldc_send(&port->vio, &pkt, sizeof(pkt));
struct vdc_port *port = to_vdc_port(vio);
struct vio_disk_attr_info *pkt = arg;
- viodbg(HS, "GOT ATTR stype[0x%x] ops[%lx] disk_size[%lu] disk_type[%x] "
- "xfer_mode[0x%x] blksz[%u] max_xfer[%lu]\n",
+ viodbg(HS, "GOT ATTR stype[0x%x] ops[%llx] disk_size[%llu] disk_type[%x] "
+ "xfer_mode[0x%x] blksz[%u] max_xfer[%llu]\n",
pkt->tag.stype, pkt->operations,
pkt->vdisk_size, pkt->vdisk_type,
pkt->xfer_mode, pkt->vdisk_block_size,
vdc_finish(&port->vio, -err, WAITING_FOR_GEN_CMD);
}
-static void vdc_end_request(struct request *req, int uptodate, int num_sectors)
-{
- if (end_that_request_first(req, uptodate, num_sectors))
- return;
- add_disk_randomness(req->rq_disk);
- end_that_request_last(req, uptodate);
-}
-
static void vdc_end_one(struct vdc_port *port, struct vio_dring_state *dr,
unsigned int index)
{
rqe->req = NULL;
- vdc_end_request(req, !desc->status, desc->size >> 9);
+ __blk_end_request(req, (desc->status ? -EIO : 0), desc->size);
if (blk_queue_stopped(port->disk->queue))
blk_start_queue(port->disk->queue);
op = VD_OP_BWRITE;
}
+ sg_init_table(sg, port->ring_cookies);
nsg = blk_rq_map_sg(req->q, req, sg);
len = 0;
desc->req_id = port->req_id;
desc->operation = op;
if (port->vdisk_type == VD_DISK_TYPE_DISK) {
- desc->slice = 2;
+ desc->slice = 0xff;
} else {
desc->slice = 0;
}
desc->status = ~0;
- desc->offset = (req->sector << 9) / port->vdisk_block_size;
+ desc->offset = (blk_rq_pos(req) << 9) / port->vdisk_block_size;
desc->size = len;
desc->ncookies = err;
return err;
}
-static void do_vdc_request(request_queue_t *q)
+static void do_vdc_request(struct request_queue *q)
{
while (1) {
- struct request *req = elv_next_request(q);
+ struct request *req = blk_fetch_request(q);
if (!req)
break;
- blkdev_dequeue_request(req);
if (__send_request(req) < 0)
- vdc_end_request(req, 0, req->hard_nr_sectors);
+ __blk_end_request_all(req, -EIO);
}
}
port->disk = g;
- blk_queue_max_hw_segments(q, port->ring_cookies);
- blk_queue_max_phys_segments(q, port->ring_cookies);
- blk_queue_max_sectors(q, port->max_xfer_size);
+ blk_queue_max_segments(q, port->ring_cookies);
+ blk_queue_max_hw_sectors(q, port->max_xfer_size);
g->major = vdc_major;
- g->first_minor = port->dev_no << PARTITION_SHIFT;
+ g->first_minor = port->vio.vdev->dev_no << PARTITION_SHIFT;
strcpy(g->disk_name, port->disk_name);
g->fops = &vdc_fops;
.handshake_complete = vdc_handshake_complete,
};
-static void print_version(void)
+static void __devinit print_version(void)
{
static int version_printed;
{
struct mdesc_handle *hp;
struct vdc_port *port;
- const u64 *port_id;
int err;
print_version();
hp = mdesc_grab();
- port_id = mdesc_get_property(hp, vdev->mp, "id", NULL);
err = -ENODEV;
- if (!port_id) {
- printk(KERN_ERR PFX "Port lacks id property.\n");
- goto err_out_release_mdesc;
- }
- if ((*port_id << PARTITION_SHIFT) & ~(u64)MINORMASK) {
- printk(KERN_ERR PFX "Port id [%lu] too large.\n", *port_id);
+ if ((vdev->dev_no << PARTITION_SHIFT) & ~(u64)MINORMASK) {
+ printk(KERN_ERR PFX "Port id [%llu] too large.\n",
+ vdev->dev_no);
goto err_out_release_mdesc;
}
goto err_out_release_mdesc;
}
- port->dev_no = *port_id;
-
- if (port->dev_no >= 26)
+ if (vdev->dev_no >= 26)
snprintf(port->disk_name, sizeof(port->disk_name),
VDCBLK_NAME "%c%c",
- 'a' + (port->dev_no / 26) - 1,
- 'a' + (port->dev_no % 26));
+ 'a' + ((int)vdev->dev_no / 26) - 1,
+ 'a' + ((int)vdev->dev_no % 26));
else
snprintf(port->disk_name, sizeof(port->disk_name),
- VDCBLK_NAME "%c", 'a' + (port->dev_no % 26));
+ VDCBLK_NAME "%c", 'a' + ((int)vdev->dev_no % 26));
err = vio_driver_init(&port->vio, vdev, VDEV_DISK,
vdc_versions, ARRAY_SIZE(vdc_versions),
return 0;
}
-static struct vio_device_id vdc_port_match[] = {
+static const struct vio_device_id vdc_port_match[] = {
{
.type = "vdc-port",
},
{},
};
-MODULE_DEVICE_TABLE(vio, vdc_match);
+MODULE_DEVICE_TABLE(vio, vdc_port_match);
static struct vio_driver vdc_port_driver = {
.id_table = vdc_port_match,