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Commit 80a06dd3 authored by Leon Romanovsky's avatar Leon Romanovsky
Browse files

RDMA/netink: Export lids and sm_lids 



According to the IB specification, the LID and SM_LID
are 16-bit wide, but to support OmniPath users, export
it as 32-bit value from the beginning.

Signed-off-by: default avatarLeon Romanovsky <leonro@mellanox.com>
parent 12026fbb

drivers/infiniband/core/nldev.c

+8 −1
Original line number Diff line number Diff line
@@ -45,6 +45,8 @@ static const struct nla_policy nldev_policy[RDMA_NLDEV_ATTR_MAX] = { 
	[RDMA_NLDEV_ATTR_NODE_GUID]	= { .type = NLA_U64 },

	[RDMA_NLDEV_ATTR_SYS_IMAGE_GUID] = { .type = NLA_U64 },

	[RDMA_NLDEV_ATTR_SUBNET_PREFIX]	= { .type = NLA_U64 },

	[RDMA_NLDEV_ATTR_LID]		= { .type = NLA_U32 },

	[RDMA_NLDEV_ATTR_SM_LID]	= { .type = NLA_U32 },

};



static int fill_dev_info(struct sk_buff *msg, struct ib_device *device)
@@ -102,7 +104,12 @@ static int fill_port_info(struct sk_buff *msg, 
	    nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_SUBNET_PREFIX,

			      attr.subnet_prefix, 0))

		return -EMSGSIZE;



	if (rdma_protocol_ib(device, port)) {

		if (nla_put_u32(msg, RDMA_NLDEV_ATTR_LID, attr.lid))

			return -EMSGSIZE;

		if (nla_put_u32(msg, RDMA_NLDEV_ATTR_SM_LID, attr.sm_lid))

			return -EMSGSIZE;

	}

	return 0;

}

include/uapi/rdma/rdma_netlink.h

+8 −0
Original line number Diff line number Diff line
@@ -284,6 +284,14 @@ enum rdma_nldev_attr { 
	 */

	RDMA_NLDEV_ATTR_SUBNET_PREFIX,		/* u64 */



	/*

	 * Local Identifier (LID),

	 * According to IB specification, It is 16-bit address assigned

	 * by the Subnet Manager. Extended to be 32-bit for OmniPath users.

	 */

	RDMA_NLDEV_ATTR_LID,			/* u32 */

	RDMA_NLDEV_ATTR_SM_LID,			/* u32 */



	RDMA_NLDEV_ATTR_MAX

};

#endif /* _UAPI_RDMA_NETLINK_H */