#include <linux/spinlock.h>
#include <linux/blkdev.h>
#include <linux/genhd.h>
+#include <linux/scatterlist.h>
#include <asm/uaccess.h>
#include <asm/io.h>
unsigned int blkcnt,
unsigned int log_unit );
-static int ida_open(struct inode *inode, struct file *filep);
-static int ida_release(struct inode *inode, struct file *filep);
-static int ida_ioctl(struct inode *inode, struct file *filep, unsigned int cmd, unsigned long arg);
+static int ida_open(struct block_device *bdev, fmode_t mode);
+static int ida_release(struct gendisk *disk, fmode_t mode);
+static int ida_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd, unsigned long arg);
static int ida_getgeo(struct block_device *bdev, struct hd_geometry *geo);
static int ida_ctlr_ioctl(ctlr_info_t *h, int dsk, ida_ioctl_t *io);
static inline void addQ(cmdlist_t **Qptr, cmdlist_t *c);
static inline cmdlist_t *removeQ(cmdlist_t **Qptr, cmdlist_t *c);
-static inline void complete_buffers(struct bio *bio, int ok);
static inline void complete_command(cmdlist_t *cmd, int timeout);
static irqreturn_t do_ida_intr(int irq, void *dev_id);
.owner = THIS_MODULE,
.open = ida_open,
.release = ida_release,
- .ioctl = ida_ioctl,
+ .locked_ioctl = ida_ioctl,
.getgeo = ida_getgeo,
.revalidate_disk= ida_revalidate,
};
static void __init ida_procinit(int i)
{
if (proc_array == NULL) {
- proc_array = proc_mkdir("cpqarray", proc_root_driver);
+ proc_array = proc_mkdir("driver/cpqarray", NULL);
if (!proc_array) return;
}
hba[i]->pci_dev, NR_CMDS * sizeof(cmdlist_t),
&(hba[i]->cmd_pool_dhandle));
hba[i]->cmd_pool_bits = kcalloc(
- (NR_CMDS+BITS_PER_LONG-1)/BITS_PER_LONG, sizeof(unsigned long),
+ DIV_ROUND_UP(NR_CMDS, BITS_PER_LONG), sizeof(unsigned long),
GFP_KERNEL);
if (!hba[i]->cmd_pool_bits || !hba[i]->cmd_pool)
num_cntlrs_reg++;
}
- return(num_cntlrs_reg);
+ if (num_cntlrs_reg)
+ return 0;
+ else {
+ pci_unregister_driver(&cpqarray_pci_driver);
+ return -ENODEV;
+ }
}
/* Function to find the first free pointer into our hba[] array */
/*
* Open. Make sure the device is really there.
*/
-static int ida_open(struct inode *inode, struct file *filep)
+static int ida_open(struct block_device *bdev, fmode_t mode)
{
- drv_info_t *drv = get_drv(inode->i_bdev->bd_disk);
- ctlr_info_t *host = get_host(inode->i_bdev->bd_disk);
+ drv_info_t *drv = get_drv(bdev->bd_disk);
+ ctlr_info_t *host = get_host(bdev->bd_disk);
- DBGINFO(printk("ida_open %s\n", inode->i_bdev->bd_disk->disk_name));
+ DBGINFO(printk("ida_open %s\n", bdev->bd_disk->disk_name));
/*
* Root is allowed to open raw volume zero even if it's not configured
* so array config can still work. I don't think I really like this,
/*
* Close. Sync first.
*/
-static int ida_release(struct inode *inode, struct file *filep)
+static int ida_release(struct gendisk *disk, fmode_t mode)
{
- ctlr_info_t *host = get_host(inode->i_bdev->bd_disk);
+ ctlr_info_t *host = get_host(disk);
host->usage_count--;
return 0;
}
DBGPX(
printk("sector=%d, nr_sectors=%d\n", creq->sector, creq->nr_sectors);
);
+ sg_init_table(tmp_sg, SG_MAX);
seg = blk_rq_map_sg(q, creq, tmp_sg);
/* Now do all the DMA Mappings */
{
c->req.sg[i].size = tmp_sg[i].length;
c->req.sg[i].addr = (__u32) pci_map_page(h->pci_dev,
- tmp_sg[i].page,
+ sg_page(&tmp_sg[i]),
tmp_sg[i].offset,
tmp_sg[i].length, dir);
}
}
}
-static inline void complete_buffers(struct bio *bio, int ok)
-{
- struct bio *xbh;
-
- while (bio) {
- xbh = bio->bi_next;
- bio->bi_next = NULL;
-
- bio_endio(bio, ok ? 0 : -EIO);
-
- bio = xbh;
- }
-}
/*
* Mark all buffers that cmd was responsible for
*/
static inline void complete_command(cmdlist_t *cmd, int timeout)
{
struct request *rq = cmd->rq;
- int ok=1;
+ int error = 0;
int i, ddir;
if (cmd->req.hdr.rcode & RCODE_NONFATAL &&
if (cmd->req.hdr.rcode & RCODE_FATAL) {
printk(KERN_WARNING "Fatal error on ida/c%dd%d\n",
cmd->ctlr, cmd->hdr.unit);
- ok = 0;
+ error = -EIO;
}
if (cmd->req.hdr.rcode & RCODE_INVREQ) {
printk(KERN_WARNING "Invalid request on ida/c%dd%d = (cmd=%x sect=%d cnt=%d sg=%d ret=%x)\n",
cmd->ctlr, cmd->hdr.unit, cmd->req.hdr.cmd,
cmd->req.hdr.blk, cmd->req.hdr.blk_cnt,
cmd->req.hdr.sg_cnt, cmd->req.hdr.rcode);
- ok = 0;
+ error = -EIO;
}
- if (timeout) ok = 0;
+ if (timeout)
+ error = -EIO;
/* unmap the DMA mapping for all the scatter gather elements */
if (cmd->req.hdr.cmd == IDA_READ)
ddir = PCI_DMA_FROMDEVICE;
pci_unmap_page(hba[cmd->ctlr]->pci_dev, cmd->req.sg[i].addr,
cmd->req.sg[i].size, ddir);
- complete_buffers(rq->bio, ok);
-
- if (blk_fs_request(rq)) {
- const int rw = rq_data_dir(rq);
-
- disk_stat_add(rq->rq_disk, sectors[rw], rq->nr_sectors);
- }
-
- add_disk_randomness(rq->rq_disk);
-
DBGPX(printk("Done with %p\n", rq););
- end_that_request_last(rq, ok ? 1 : -EIO);
+ if (__blk_end_request(rq, error, blk_rq_bytes(rq)))
+ BUG();
}
/*
* ida_ioctl does some miscellaneous stuff like reporting drive geometry,
* setting readahead and submitting commands from userspace to the controller.
*/
-static int ida_ioctl(struct inode *inode, struct file *filep, unsigned int cmd, unsigned long arg)
+static int ida_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd, unsigned long arg)
{
- drv_info_t *drv = get_drv(inode->i_bdev->bd_disk);
- ctlr_info_t *host = get_host(inode->i_bdev->bd_disk);
+ drv_info_t *drv = get_drv(bdev->bd_disk);
+ ctlr_info_t *host = get_host(bdev->bd_disk);
int error;
ida_ioctl_t __user *io = (ida_ioctl_t __user *)arg;
ida_ioctl_t *my_io;
put_user(host->ctlr_sig, (int __user *)arg);
return 0;
case IDAREVALIDATEVOLS:
- if (iminor(inode) != 0)
+ if (MINOR(bdev->bd_dev) != 0)
return -ENXIO;
return revalidate_allvol(host);
case IDADRIVERVERSION:
}
}
- remove_proc_entry("cpqarray", proc_root_driver);
+ remove_proc_entry("driver/cpqarray", NULL);
}
module_init(cpqarray_init)
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff