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author | Ralph Campbell <ralph.campbell@qlogic.com> | 2010-05-07 00:03:25 (GMT) |
---|---|---|
committer | Roland Dreier <rolandd@cisco.com> | 2010-05-21 17:34:44 (GMT) |
commit | 9a6edb60ec10d86b1025a0cdad68fd89f1ddaf02 (patch) | |
tree | 8727118d511e8336f038e618cfc6d4aa6b73aaaf /drivers/infiniband/core/sysfs.c | |
parent | a0fe3cc5d36a5f5b4f60abfe1a4b1caf4a5cce5a (diff) | |
download | linux-fsl-qoriq-9a6edb60ec10d86b1025a0cdad68fd89f1ddaf02.tar.xz |
IB/core: Allow device-specific per-port sysfs files
Add a new parameter to ib_register_device() so that low-level device
drivers can pass in a pointer to a callback function that will be
called for each port that is registered in sysfs. This allows
low-level device drivers to create files in
/sys/class/infiniband/<hca>/ports/<N>/
without having to poke through the internals of the RDMA sysfs handling.
There is no need for an unregister function since the kobject
reference will go to zero when ib_unregister_device() is called.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/core/sysfs.c')
-rw-r--r-- | drivers/infiniband/core/sysfs.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c index f901957..3627300 100644 --- a/drivers/infiniband/core/sysfs.c +++ b/drivers/infiniband/core/sysfs.c @@ -475,7 +475,9 @@ err: return NULL; } -static int add_port(struct ib_device *device, int port_num) +static int add_port(struct ib_device *device, int port_num, + int (*port_callback)(struct ib_device *, + u8, struct kobject *)) { struct ib_port *p; struct ib_port_attr attr; @@ -522,11 +524,20 @@ static int add_port(struct ib_device *device, int port_num) if (ret) goto err_free_pkey; + if (port_callback) { + ret = port_callback(device, port_num, &p->kobj); + if (ret) + goto err_remove_pkey; + } + list_add_tail(&p->kobj.entry, &device->port_list); kobject_uevent(&p->kobj, KOBJ_ADD); return 0; +err_remove_pkey: + sysfs_remove_group(&p->kobj, &p->pkey_group); + err_free_pkey: for (i = 0; i < attr.pkey_tbl_len; ++i) kfree(p->pkey_group.attrs[i]); @@ -754,7 +765,9 @@ static struct attribute_group iw_stats_group = { .attrs = iw_proto_stats_attrs, }; -int ib_device_register_sysfs(struct ib_device *device) +int ib_device_register_sysfs(struct ib_device *device, + int (*port_callback)(struct ib_device *, + u8, struct kobject *)) { struct device *class_dev = &device->dev; int ret; @@ -785,12 +798,12 @@ int ib_device_register_sysfs(struct ib_device *device) } if (device->node_type == RDMA_NODE_IB_SWITCH) { - ret = add_port(device, 0); + ret = add_port(device, 0, port_callback); if (ret) goto err_put; } else { for (i = 1; i <= device->phys_port_cnt; ++i) { - ret = add_port(device, i); + ret = add_port(device, i, port_callback); if (ret) goto err_put; } |