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IB: Add caching of ports' LMC

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Add an LMC cache to struct ib_device, and add a function
ib_get_cached_lmc() to query the cache.

Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Jack Morgenstein 2006-06-17 20:37:34 -07:00 • committed by Roland Dreier
parent 856c256f88
commit 6fb9cdbf2c
3 changed files with 43 additions and 1 deletions
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13
include/rdma/ib_cache.h
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@ -102,4 +102,17 @@ int ib_find_cached_pkey(struct ib_device *device,
u16 pkey,
u16 *index);
/**
* ib_get_cached_lmc - Returns a cached lmc table entry
* @device: The device to query.
* @port_num: The port number of the device to query.
* @lmc: The lmc value for the specified port for that device.
*
* ib_get_cached_lmc() fetches the specified lmc table entry stored in
* the local software cache.
*/
int ib_get_cached_lmc(struct ib_device *device,
u8 port_num,
u8 *lmc);
#endif /* _IB_CACHE_H */