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-rw-r--r--drivers/block/ataflop.c2
-rw-r--r--drivers/block/swim.c4
-rw-r--r--drivers/block/viodasd.c86
-rw-r--r--drivers/block/virtio_blk.c61
4 files changed, 84 insertions, 69 deletions
diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c
index a5af1d6dda8..e35cf59cbfd 100644
--- a/drivers/block/ataflop.c
+++ b/drivers/block/ataflop.c
@@ -1470,8 +1470,6 @@ repeat:
void do_fd_request(struct request_queue * q)
{
- unsigned long flags;
-
DPRINT(("do_fd_request for pid %d\n",current->pid));
while( fdc_busy ) sleep_on( &fdc_wait );
fdc_busy = 1;
diff --git a/drivers/block/swim.c b/drivers/block/swim.c
index 8f569e3df89..821c2833f9c 100644
--- a/drivers/block/swim.c
+++ b/drivers/block/swim.c
@@ -864,7 +864,7 @@ static int __devinit swim_probe(struct platform_device *dev)
struct swim_priv *swd;
int ret;
- res = platform_get_resource_byname(dev, IORESOURCE_MEM, "swim-regs");
+ res = platform_get_resource(dev, IORESOURCE_MEM, 0);
if (!res) {
ret = -ENODEV;
goto out;
@@ -942,7 +942,7 @@ static int __devexit swim_remove(struct platform_device *dev)
iounmap(swd->base);
- res = platform_get_resource_byname(dev, IORESOURCE_MEM, "swim-regs");
+ res = platform_get_resource(dev, IORESOURCE_MEM, 0);
if (res)
release_mem_region(res->start, resource_size(res));
diff --git a/drivers/block/viodasd.c b/drivers/block/viodasd.c
index c12b31362ac..788d93882ab 100644
--- a/drivers/block/viodasd.c
+++ b/drivers/block/viodasd.c
@@ -28,6 +28,9 @@
* All disk operations are performed by sending messages back and forth to
* the OS/400 partition.
*/
+
+#define pr_fmt(fmt) "viod: " fmt
+
#include <linux/major.h>
#include <linux/fs.h>
#include <linux/module.h>
@@ -63,9 +66,6 @@ MODULE_LICENSE("GPL");
#define VIOD_VERS "1.64"
-#define VIOD_KERN_WARNING KERN_WARNING "viod: "
-#define VIOD_KERN_INFO KERN_INFO "viod: "
-
enum {
PARTITION_SHIFT = 3,
MAX_DISKNO = HVMAXARCHITECTEDVIRTUALDISKS,
@@ -156,7 +156,7 @@ static int viodasd_open(struct block_device *bdev, fmode_t mode)
((u64)DEVICE_NO(d) << 48) | ((u64)flags << 32),
0, 0, 0);
if (hvrc != 0) {
- printk(VIOD_KERN_WARNING "HV open failed %d\n", (int)hvrc);
+ pr_warning("HV open failed %d\n", (int)hvrc);
return -EIO;
}
@@ -167,9 +167,8 @@ static int viodasd_open(struct block_device *bdev, fmode_t mode)
const struct vio_error_entry *err =
vio_lookup_rc(viodasd_err_table, we.sub_result);
- printk(VIOD_KERN_WARNING
- "bad rc opening disk: %d:0x%04x (%s)\n",
- (int)we.rc, we.sub_result, err->msg);
+ pr_warning("bad rc opening disk: %d:0x%04x (%s)\n",
+ (int)we.rc, we.sub_result, err->msg);
return -EIO;
}
@@ -195,8 +194,7 @@ static int viodasd_release(struct gendisk *disk, fmode_t mode)
((u64)DEVICE_NO(d) << 48) /* | ((u64)flags << 32) */,
0, 0, 0);
if (hvrc != 0)
- printk(VIOD_KERN_WARNING "HV close call failed %d\n",
- (int)hvrc);
+ pr_warning("HV close call failed %d\n", (int)hvrc);
return 0;
}
@@ -288,8 +286,7 @@ static int send_request(struct request *req)
bevent = (struct vioblocklpevent *)
vio_get_event_buffer(viomajorsubtype_blockio);
if (bevent == NULL) {
- printk(VIOD_KERN_WARNING
- "error allocating disk event buffer\n");
+ pr_warning("error allocating disk event buffer\n");
goto error_ret;
}
@@ -333,9 +330,8 @@ static int send_request(struct request *req)
}
if (hvrc != HvLpEvent_Rc_Good) {
- printk(VIOD_KERN_WARNING
- "error sending disk event to OS/400 (rc %d)\n",
- (int)hvrc);
+ pr_warning("error sending disk event to OS/400 (rc %d)\n",
+ (int)hvrc);
goto error_ret;
}
spin_unlock_irqrestore(&viodasd_spinlock, flags);
@@ -402,7 +398,7 @@ retry:
((u64)dev_no << 48) | ((u64)flags<< 32),
0, 0, 0);
if (hvrc != 0) {
- printk(VIOD_KERN_WARNING "bad rc on HV open %d\n", (int)hvrc);
+ pr_warning("bad rc on HV open %d\n", (int)hvrc);
return 0;
}
@@ -416,9 +412,8 @@ retry:
goto retry;
}
if (we.max_disk > (MAX_DISKNO - 1)) {
- printk_once(VIOD_KERN_INFO
- "Only examining the first %d of %d disks connected\n",
- MAX_DISKNO, we.max_disk + 1);
+ printk_once(KERN_INFO pr_fmt("Only examining the first %d of %d disks connected\n"),
+ MAX_DISKNO, we.max_disk + 1);
}
/* Send the close event to OS/400. We DON'T expect a response */
@@ -432,17 +427,15 @@ retry:
((u64)dev_no << 48) | ((u64)flags << 32),
0, 0, 0);
if (hvrc != 0) {
- printk(VIOD_KERN_WARNING
- "bad rc sending event to OS/400 %d\n", (int)hvrc);
+ pr_warning("bad rc sending event to OS/400 %d\n", (int)hvrc);
return 0;
}
if (d->dev == NULL) {
/* this is when we reprobe for new disks */
if (vio_create_viodasd(dev_no) == NULL) {
- printk(VIOD_KERN_WARNING
- "cannot allocate virtual device for disk %d\n",
- dev_no);
+ pr_warning("cannot allocate virtual device for disk %d\n",
+ dev_no);
return 0;
}
/*
@@ -457,15 +450,13 @@ retry:
spin_lock_init(&d->q_lock);
q = blk_init_queue(do_viodasd_request, &d->q_lock);
if (q == NULL) {
- printk(VIOD_KERN_WARNING "cannot allocate queue for disk %d\n",
- dev_no);
+ pr_warning("cannot allocate queue for disk %d\n", dev_no);
return 0;
}
g = alloc_disk(1 << PARTITION_SHIFT);
if (g == NULL) {
- printk(VIOD_KERN_WARNING
- "cannot allocate disk structure for disk %d\n",
- dev_no);
+ pr_warning("cannot allocate disk structure for disk %d\n",
+ dev_no);
blk_cleanup_queue(q);
return 0;
}
@@ -488,13 +479,12 @@ retry:
g->driverfs_dev = d->dev;
set_capacity(g, d->size >> 9);
- printk(VIOD_KERN_INFO "disk %d: %lu sectors (%lu MB) "
- "CHS=%d/%d/%d sector size %d%s\n",
- dev_no, (unsigned long)(d->size >> 9),
- (unsigned long)(d->size >> 20),
- (int)d->cylinders, (int)d->tracks,
- (int)d->sectors, (int)d->bytes_per_sector,
- d->read_only ? " (RO)" : "");
+ pr_info("disk %d: %lu sectors (%lu MB) CHS=%d/%d/%d sector size %d%s\n",
+ dev_no, (unsigned long)(d->size >> 9),
+ (unsigned long)(d->size >> 20),
+ (int)d->cylinders, (int)d->tracks,
+ (int)d->sectors, (int)d->bytes_per_sector,
+ d->read_only ? " (RO)" : "");
/* register us in the global list */
add_disk(g);
@@ -579,8 +569,8 @@ static int viodasd_handle_read_write(struct vioblocklpevent *bevent)
if (error) {
const struct vio_error_entry *err;
err = vio_lookup_rc(viodasd_err_table, bevent->sub_result);
- printk(VIOD_KERN_WARNING "read/write error %d:0x%04x (%s)\n",
- event->xRc, bevent->sub_result, err->msg);
+ pr_warning("read/write error %d:0x%04x (%s)\n",
+ event->xRc, bevent->sub_result, err->msg);
num_sect = blk_rq_sectors(req);
}
qlock = req->q->queue_lock;
@@ -605,8 +595,7 @@ static void handle_block_event(struct HvLpEvent *event)
return;
/* First, we should NEVER get an int here...only acks */
if (hvlpevent_is_int(event)) {
- printk(VIOD_KERN_WARNING
- "Yikes! got an int in viodasd event handler!\n");
+ pr_warning("Yikes! got an int in viodasd event handler!\n");
if (hvlpevent_need_ack(event)) {
event->xRc = HvLpEvent_Rc_InvalidSubtype;
HvCallEvent_ackLpEvent(event);
@@ -649,7 +638,7 @@ static void handle_block_event(struct HvLpEvent *event)
break;
default:
- printk(VIOD_KERN_WARNING "invalid subtype!");
+ pr_warning("invalid subtype!");
if (hvlpevent_need_ack(event)) {
event->xRc = HvLpEvent_Rc_InvalidSubtype;
HvCallEvent_ackLpEvent(event);
@@ -738,29 +727,26 @@ static int __init viodasd_init(void)
vio_set_hostlp();
if (viopath_hostLp == HvLpIndexInvalid) {
- printk(VIOD_KERN_WARNING "invalid hosting partition\n");
+ pr_warning("invalid hosting partition\n");
rc = -EIO;
goto early_fail;
}
- printk(VIOD_KERN_INFO "vers " VIOD_VERS ", hosting partition %d\n",
- viopath_hostLp);
+ pr_info("vers " VIOD_VERS ", hosting partition %d\n", viopath_hostLp);
/* register the block device */
rc = register_blkdev(VIODASD_MAJOR, VIOD_GENHD_NAME);
if (rc) {
- printk(VIOD_KERN_WARNING
- "Unable to get major number %d for %s\n",
- VIODASD_MAJOR, VIOD_GENHD_NAME);
+ pr_warning("Unable to get major number %d for %s\n",
+ VIODASD_MAJOR, VIOD_GENHD_NAME);
goto early_fail;
}
/* Actually open the path to the hosting partition */
rc = viopath_open(viopath_hostLp, viomajorsubtype_blockio,
VIOMAXREQ + 2);
if (rc) {
- printk(VIOD_KERN_WARNING
- "error opening path to host partition %d\n",
- viopath_hostLp);
+ pr_warning("error opening path to host partition %d\n",
+ viopath_hostLp);
goto unregister_blk;
}
@@ -769,7 +755,7 @@ static int __init viodasd_init(void)
rc = vio_register_driver(&viodasd_driver);
if (rc) {
- printk(VIOD_KERN_WARNING "vio_register_driver failed\n");
+ pr_warning("vio_register_driver failed\n");
goto unset_handler;
}
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index c17e622f85e..3c64af05fa8 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -243,10 +243,12 @@ static int index_to_minor(int index)
static int __devinit virtblk_probe(struct virtio_device *vdev)
{
struct virtio_blk *vblk;
+ struct request_queue *q;
int err;
u64 cap;
- u32 v;
- u32 blk_size, sg_elems;
+ u32 v, blk_size, sg_elems, opt_io_size;
+ u16 min_io_size;
+ u8 physical_block_exp, alignment_offset;
if (index_to_minor(index) >= 1 << MINORBITS)
return -ENOSPC;
@@ -293,13 +295,13 @@ static int __devinit virtblk_probe(struct virtio_device *vdev)
goto out_mempool;
}
- vblk->disk->queue = blk_init_queue(do_virtblk_request, &vblk->lock);
- if (!vblk->disk->queue) {
+ q = vblk->disk->queue = blk_init_queue(do_virtblk_request, &vblk->lock);
+ if (!q) {
err = -ENOMEM;
goto out_put_disk;
}
- vblk->disk->queue->queuedata = vblk;
+ q->queuedata = vblk;
if (index < 26) {
sprintf(vblk->disk->disk_name, "vd%c", 'a' + index % 26);
@@ -323,10 +325,10 @@ static int __devinit virtblk_probe(struct virtio_device *vdev)
/* If barriers are supported, tell block layer that queue is ordered */
if (virtio_has_feature(vdev, VIRTIO_BLK_F_FLUSH))
- blk_queue_ordered(vblk->disk->queue, QUEUE_ORDERED_DRAIN_FLUSH,
+ blk_queue_ordered(q, QUEUE_ORDERED_DRAIN_FLUSH,
virtblk_prepare_flush);
else if (virtio_has_feature(vdev, VIRTIO_BLK_F_BARRIER))
- blk_queue_ordered(vblk->disk->queue, QUEUE_ORDERED_TAG, NULL);
+ blk_queue_ordered(q, QUEUE_ORDERED_TAG, NULL);
/* If disk is read-only in the host, the guest should obey */
if (virtio_has_feature(vdev, VIRTIO_BLK_F_RO))
@@ -345,14 +347,14 @@ static int __devinit virtblk_probe(struct virtio_device *vdev)
set_capacity(vblk->disk, cap);
/* We can handle whatever the host told us to handle. */
- blk_queue_max_phys_segments(vblk->disk->queue, vblk->sg_elems-2);
- blk_queue_max_hw_segments(vblk->disk->queue, vblk->sg_elems-2);
+ blk_queue_max_phys_segments(q, vblk->sg_elems-2);
+ blk_queue_max_hw_segments(q, vblk->sg_elems-2);
/* No need to bounce any requests */
- blk_queue_bounce_limit(vblk->disk->queue, BLK_BOUNCE_ANY);
+ blk_queue_bounce_limit(q, BLK_BOUNCE_ANY);
/* No real sector limit. */
- blk_queue_max_sectors(vblk->disk->queue, -1U);
+ blk_queue_max_sectors(q, -1U);
/* Host can optionally specify maximum segment size and number of
* segments. */
@@ -360,16 +362,45 @@ static int __devinit virtblk_probe(struct virtio_device *vdev)
offsetof(struct virtio_blk_config, size_max),
&v);
if (!err)
- blk_queue_max_segment_size(vblk->disk->queue, v);
+ blk_queue_max_segment_size(q, v);
else
- blk_queue_max_segment_size(vblk->disk->queue, -1U);
+ blk_queue_max_segment_size(q, -1U);
/* Host can optionally specify the block size of the device */
err = virtio_config_val(vdev, VIRTIO_BLK_F_BLK_SIZE,
offsetof(struct virtio_blk_config, blk_size),
&blk_size);
if (!err)
- blk_queue_logical_block_size(vblk->disk->queue, blk_size);
+ blk_queue_logical_block_size(q, blk_size);
+ else
+ blk_size = queue_logical_block_size(q);
+
+ /* Use topology information if available */
+ err = virtio_config_val(vdev, VIRTIO_BLK_F_TOPOLOGY,
+ offsetof(struct virtio_blk_config, physical_block_exp),
+ &physical_block_exp);
+ if (!err && physical_block_exp)
+ blk_queue_physical_block_size(q,
+ blk_size * (1 << physical_block_exp));
+
+ err = virtio_config_val(vdev, VIRTIO_BLK_F_TOPOLOGY,
+ offsetof(struct virtio_blk_config, alignment_offset),
+ &alignment_offset);
+ if (!err && alignment_offset)
+ blk_queue_alignment_offset(q, blk_size * alignment_offset);
+
+ err = virtio_config_val(vdev, VIRTIO_BLK_F_TOPOLOGY,
+ offsetof(struct virtio_blk_config, min_io_size),
+ &min_io_size);
+ if (!err && min_io_size)
+ blk_queue_io_min(q, blk_size * min_io_size);
+
+ err = virtio_config_val(vdev, VIRTIO_BLK_F_TOPOLOGY,
+ offsetof(struct virtio_blk_config, opt_io_size),
+ &opt_io_size);
+ if (!err && opt_io_size)
+ blk_queue_io_opt(q, blk_size * opt_io_size);
+
add_disk(vblk->disk);
return 0;
@@ -412,7 +443,7 @@ static const struct virtio_device_id id_table[] = {
static unsigned int features[] = {
VIRTIO_BLK_F_BARRIER, VIRTIO_BLK_F_SEG_MAX, VIRTIO_BLK_F_SIZE_MAX,
VIRTIO_BLK_F_GEOMETRY, VIRTIO_BLK_F_RO, VIRTIO_BLK_F_BLK_SIZE,
- VIRTIO_BLK_F_SCSI, VIRTIO_BLK_F_FLUSH
+ VIRTIO_BLK_F_SCSI, VIRTIO_BLK_F_FLUSH, VIRTIO_BLK_F_TOPOLOGY
};
/*
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-11 13:58:32 +0000