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Commit 5f244104 authored by Steve Wise's avatar Steve Wise Committed by Doug Ledford
Browse files

rdma_cm: add rdma_consumer_reject_data helper function 



rdma_consumer_reject_data() will return the private data pointer
and length if any is available.

Reviewed-by: default avatarSagi Grimberg <sagi@grimberg.me>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarSteve Wise <swise@opengridcomputing.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 5042a73d

drivers/infiniband/core/cma.c

+16 −0
Original line number Diff line number Diff line
@@ -128,6 +128,22 @@ bool rdma_is_consumer_reject(struct rdma_cm_id *id, int reason) 
}

EXPORT_SYMBOL(rdma_is_consumer_reject);



const void *rdma_consumer_reject_data(struct rdma_cm_id *id,

				      struct rdma_cm_event *ev, u8 *data_len)

{

	const void *p;



	if (rdma_is_consumer_reject(id, ev->status)) {

		*data_len = ev->param.conn.private_data_len;

		p = ev->param.conn.private_data;

	} else {

		*data_len = 0;

		p = NULL;

	}

	return p;

}

EXPORT_SYMBOL(rdma_consumer_reject_data);



static void cma_add_one(struct ib_device *device);

static void cma_remove_one(struct ib_device *device, void *client_data);

include/rdma/rdma_cm.h

+10 −0
Original line number Diff line number Diff line
@@ -403,4 +403,14 @@ const char *__attribute_const__ rdma_reject_msg(struct rdma_cm_id *id, 
 */

bool rdma_is_consumer_reject(struct rdma_cm_id *id, int reason);



/**

 * rdma_consumer_reject_data - return the consumer reject private data and

 *			       length, if any.

 * @id: Communication identifier that received the REJECT event.

 * @ev: RDMA CM reject event.

 * @data_len: Pointer to the resulting length of the consumer data.

 */

const void *rdma_consumer_reject_data(struct rdma_cm_id *id,

				      struct rdma_cm_event *ev, u8 *data_len);



#endif /* RDMA_CM_H */