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Commit 29541e3a authored by Michael Wang's avatar Michael Wang Committed by Doug Ledford
Browse files

IB/Verbs: Use management helper rdma_cap_ib_smi() 



Introduce helper rdma_cap_ib_smi() to help us check if the port of an
IB device support Infiniband Subnet Management Interface.

Signed-off-by: default avatarMichael Wang <yun.wang@profitbricks.com>
Reviewed-by: default avatarIra Weiny <ira.weiny@intel.com>
Tested-by: default avatarIra Weiny <ira.weiny@intel.com>
Reviewed-by: default avatarSean Hefty <sean.hefty@intel.com>
Reviewed-by: default avatarJason Gunthorpe <jgunthorpe@obsidianresearch.com>
Tested-by: default avatarDoug Ledford <dledford@redhat.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent c757dea8

drivers/infiniband/core/agent.c

+1 −1
Original line number Diff line number Diff line
@@ -156,7 +156,7 @@ int ib_agent_port_open(struct ib_device *device, int port_num) 
		goto error1;

	}



	if (rdma_protocol_ib(device, port_num)) {

	if (rdma_cap_ib_smi(device, port_num)) {

		/* Obtain send only MAD agent for SMI QP */

		port_priv->agent[0] = ib_register_mad_agent(device, port_num,

							    IB_QPT_SMI, NULL, 0,

drivers/infiniband/core/mad.c

+1 −1
Original line number Diff line number Diff line
@@ -2938,7 +2938,7 @@ static int ib_mad_port_open(struct ib_device *device, 
	init_mad_qp(port_priv, &port_priv->qp_info[1]);



	cq_size = mad_sendq_size + mad_recvq_size;

	has_smi = rdma_protocol_ib(device, port_num);

	has_smi = rdma_cap_ib_smi(device, port_num);

	if (has_smi)

		cq_size *= 2;

include/rdma/ib_verbs.h

+15 −0
Original line number Diff line number Diff line
@@ -1789,6 +1789,21 @@ static inline bool rdma_cap_ib_mad(struct ib_device *device, u8 port_num) 
	return rdma_ib_or_iboe(device, port_num);

}



/**

 * rdma_cap_ib_smi - Check if the port of device has the capability Infiniband

 * Subnet Management Interface.

 *

 * @device: Device to be checked

 * @port_num: Port number of the device

 *

 * Return false when port of the device don't support Infiniband

 * Subnet Management Interface.

 */

static inline bool rdma_cap_ib_smi(struct ib_device *device, u8 port_num)

{

	return rdma_protocol_ib(device, port_num);

}



int ib_query_gid(struct ib_device *device,

		 u8 port_num, int index, union ib_gid *gid);