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Commit 9e2c3f1c authored by Jack Wang's avatar Jack Wang Committed by Doug Ledford
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RDMA/core: export ib_get_cached_port_state 



Export function for rdma_cm, patch for rdma_cm to follow.

Signed-off-by: default avatarJack Wang <jinpu.wang@profitbricks.com>
Reviewed-by: default avatarMichael Wang <yun.wang@profitbricks.com>
Acked-by: default avatarSean Hefty <sean.hefty@intel.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent aaaca121

drivers/infiniband/core/cache.c

+18 −0
Original line number Diff line number Diff line
@@ -1021,6 +1021,24 @@ int ib_get_cached_lmc(struct ib_device *device, 
}

EXPORT_SYMBOL(ib_get_cached_lmc);



int ib_get_cached_port_state(struct ib_device   *device,

			     u8                  port_num,

			     enum ib_port_state *port_state)

{

	unsigned long flags;

	int ret = 0;



	if (port_num < rdma_start_port(device) || port_num > rdma_end_port(device))

		return -EINVAL;



	read_lock_irqsave(&device->cache.lock, flags);

	*port_state = device->cache.port_state_cache[port_num - rdma_start_port(device)];

	read_unlock_irqrestore(&device->cache.lock, flags);



	return ret;

}

EXPORT_SYMBOL(ib_get_cached_port_state);



static void ib_cache_update(struct ib_device *device,

			    u8                port)

{

include/rdma/ib_cache.h

+13 −0
Original line number Diff line number Diff line
@@ -165,4 +165,17 @@ int ib_get_cached_lmc(struct ib_device *device, 
		      u8                port_num,

		      u8                *lmc);



/**

 * ib_get_cached_port_state - Returns a cached port state table entry

 * @device: The device to query.

 * @port_num: The port number of the device to query.

 * @port_state: port_state for the specified port for that device.

 *

 * ib_get_cached_port_state() fetches the specified port_state table entry stored in

 * the local software cache.

 */

int ib_get_cached_port_state(struct ib_device *device,

			      u8                port_num,

			      enum ib_port_state *port_active);



#endif /* _IB_CACHE_H */