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author | Ming Lin <ming.l@ssi.samsung.com> | 2016-06-13 14:45:24 (GMT) |
---|---|---|
committer | Jens Axboe <axboe@fb.com> | 2016-07-05 17:28:12 (GMT) |
commit | 1a353d85b02d010e9daa7bd189d203ba1f2614a1 (patch) | |
tree | d9f9f91db6280c5c760010a93f15655bbdb2dc48 /drivers/nvme/host/pci.c | |
parent | eb71f435579ff61f342114ffaa662af163676753 (diff) | |
download | linux-1a353d85b02d010e9daa7bd189d203ba1f2614a1.tar.xz |
nvme: add fabrics sysfs attributes
- delete_controller: This attribute allows to delete a controller.
A driver is not obligated to support it (pci doesn't) so it is
created only if the driver supports it. The new fabrics drivers
will support it (essentialy a disconnect operation).
Usage:
echo > /sys/class/nvme/nvme0/delete_controller
- subsysnqn: This attribute shows the subsystem nqn of the configured
device. If a driver does not implement the get_subsysnqn method, the
file will not appear in sysfs.
- transport: This attribute shows the transport name. Added a "name"
field to struct nvme_ctrl_ops.
For loop,
cat /sys/class/nvme/nvme0/transport
loop
For RDMA,
cat /sys/class/nvme/nvme0/transport
rdma
For PCIe,
cat /sys/class/nvme/nvme0/transport
pcie
- address: This attributes shows the controller address. The fabrics
drivers that will implement get_address can show the address of the
connected controller.
example:
cat /sys/class/nvme/nvme0/address
traddr=192.168.2.2,trsvcid=1023
Signed-off-by: Ming Lin <ming.l@ssi.samsung.com>
Reviewed-by: Jay Freyensee <james.p.freyensee@intel.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/nvme/host/pci.c')
-rw-r--r-- | drivers/nvme/host/pci.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index db6fdee..de222ed 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -1873,6 +1873,7 @@ static int nvme_pci_reset_ctrl(struct nvme_ctrl *ctrl) } static const struct nvme_ctrl_ops nvme_pci_ctrl_ops = { + .name = "pcie", .module = THIS_MODULE, .reg_read32 = nvme_pci_reg_read32, .reg_write32 = nvme_pci_reg_write32, |