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author | Matthew Wilcox <matthew.r.wilcox@intel.com> | 2011-02-03 10:58:26 -0500 |
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committer | Matthew Wilcox <matthew.r.wilcox@intel.com> | 2011-11-04 15:52:54 -0400 |
commit | 6ee44cdced04a53dc4f27eb97067e6cd33784726 (patch) | |
tree | 1f018425a216da0a58c7f36b830925fbb9aa41a7 /drivers | |
parent | 7a63e07b9a98b77dd075e06b93c1d8dc871ddad5 (diff) | |
download | blackbird-op-linux-6ee44cdced04a53dc4f27eb97067e6cd33784726.tar.gz blackbird-op-linux-6ee44cdced04a53dc4f27eb97067e6cd33784726.zip |
NVMe: Add download / activate firmware ioctls
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/block/nvme.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/block/nvme.c b/drivers/block/nvme.c index 744db3877c42..7cdf7f69cdcd 100644 --- a/drivers/block/nvme.c +++ b/drivers/block/nvme.c @@ -829,6 +829,47 @@ static int nvme_submit_io(struct nvme_ns *ns, struct nvme_user_io __user *uio) return status; } +static int nvme_download_firmware(struct nvme_ns *ns, + struct nvme_dlfw __user *udlfw) +{ + struct nvme_dev *dev = ns->dev; + struct nvme_dlfw dlfw; + struct nvme_command c; + int nents, status; + struct scatterlist *sg; + + if (copy_from_user(&dlfw, udlfw, sizeof(dlfw))) + return -EFAULT; + if (dlfw.length >= (1 << 30)) + return -EINVAL; + + nents = nvme_map_user_pages(dev, 1, dlfw.addr, dlfw.length * 4, &sg); + if (nents < 0) + return nents; + + memset(&c, 0, sizeof(c)); + c.dlfw.opcode = nvme_admin_download_fw; + c.dlfw.numd = cpu_to_le32(dlfw.length); + c.dlfw.offset = cpu_to_le32(dlfw.offset); + nvme_setup_prps(&c.common, sg, dlfw.length * 4); + + status = nvme_submit_admin_cmd(dev, &c, NULL); + nvme_unmap_user_pages(dev, 0, dlfw.addr, dlfw.length * 4, sg, nents); + return status; +} + +static int nvme_activate_firmware(struct nvme_ns *ns, unsigned long arg) +{ + struct nvme_dev *dev = ns->dev; + struct nvme_command c; + + memset(&c, 0, sizeof(c)); + c.common.opcode = nvme_admin_activate_fw; + c.common.rsvd10[0] = cpu_to_le32(arg); + + return nvme_submit_admin_cmd(dev, &c, NULL); +} + static int nvme_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd, unsigned long arg) { @@ -843,6 +884,10 @@ static int nvme_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd, return nvme_get_range_type(ns, arg); case NVME_IOCTL_SUBMIT_IO: return nvme_submit_io(ns, (void __user *)arg); + case NVME_IOCTL_DOWNLOAD_FW: + return nvme_download_firmware(ns, (void __user *)arg); + case NVME_IOCTL_ACTIVATE_FW: + return nvme_activate_firmware(ns, arg); default: return -ENOTTY; } |