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IB/core: Allow device-specific per-port sysfs files

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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>
This commit is contained in:
Ralph Campbell
2010-05-06 17:03:25 -07:00
committed by Roland Dreier
parent a0fe3cc5d3
commit 9a6edb60ec
12 changed files with 35 additions and 16 deletions
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4
include/rdma/ib_verbs.h
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@@ -1172,7 +1172,9 @@ struct ib_client {
struct ib_device *ib_alloc_device(size_t size);
void ib_dealloc_device(struct ib_device *device);
int ib_register_device (struct ib_device *device);
int ib_register_device(struct ib_device *device,
int (*port_callback)(struct ib_device *,
u8, struct kobject *));
void ib_unregister_device(struct ib_device *device);
int ib_register_client (struct ib_client *client);