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author | Stephen M. Cameron <scameron@beardog.cce.hp.com> | 2010-08-26 18:55:54 (GMT) |
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committer | Jens Axboe <jaxboe@fusionio.com> | 2010-09-10 10:12:32 (GMT) |
commit | 4f43f32cd3f65cfee5f30d7e6be55854cf33809b (patch) | |
tree | 100c18f82e4ac710469136b7f037f089f4b14684 /drivers | |
parent | 252161094255ffdc277b8a0e5e12b0a8ff67b10f (diff) | |
download | linux-fsl-qoriq-4f43f32cd3f65cfee5f30d7e6be55854cf33809b.tar.xz |
cciss: factor out cciss_setnodename
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/block/cciss.c | 65 |
1 files changed, 29 insertions, 36 deletions
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 9a3dd20..8bbb1c8 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -1305,6 +1305,34 @@ static int cciss_getnodename(ctlr_info_t *h, void __user *argp) return 0; } +static int cciss_setnodename(ctlr_info_t *h, void __user *argp) +{ + NodeName_type NodeName; + unsigned long flags; + int i; + + if (!argp) + return -EINVAL; + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + if (copy_from_user(NodeName, argp, sizeof(NodeName_type))) + return -EFAULT; + spin_lock_irqsave(&h->lock, flags); + /* Update the field, and then ring the doorbell */ + for (i = 0; i < 16; i++) + writeb(NodeName[i], &h->cfgtable->ServerName[i]); + writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL); + for (i = 0; i < MAX_IOCTL_CONFIG_WAIT; i++) { + if (!(readl(h->vaddr + SA5_DOORBELL) & CFGTBL_ChangeReq)) + break; + udelay(1000); /* delay and try again */ + } + spin_unlock_irqrestore(&h->lock, flags); + if (i >= MAX_IOCTL_CONFIG_WAIT) + return -EAGAIN; + return 0; +} + static int cciss_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd, unsigned long arg) { @@ -1325,42 +1353,7 @@ static int cciss_ioctl(struct block_device *bdev, fmode_t mode, case CCISS_GETNODENAME: return cciss_getnodename(h, argp); case CCISS_SETNODENAME: - { - NodeName_type NodeName; - unsigned long flags; - int i; - - if (!arg) - return -EINVAL; - if (!capable(CAP_SYS_ADMIN)) - return -EPERM; - - if (copy_from_user - (NodeName, argp, sizeof(NodeName_type))) - return -EFAULT; - - spin_lock_irqsave(&h->lock, flags); - - /* Update the field, and then ring the doorbell */ - for (i = 0; i < 16; i++) - writeb(NodeName[i], - &h->cfgtable->ServerName[i]); - - writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL); - - for (i = 0; i < MAX_IOCTL_CONFIG_WAIT; i++) { - if (!(readl(h->vaddr + SA5_DOORBELL) - & CFGTBL_ChangeReq)) - break; - /* delay and try again */ - udelay(1000); - } - spin_unlock_irqrestore(&h->lock, flags); - if (i >= MAX_IOCTL_CONFIG_WAIT) - return -EAGAIN; - return 0; - } - + return cciss_setnodename(h, argp); case CCISS_GETHEARTBEAT: { Heartbeat_type heartbeat; |