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RDMA/netink: Export lids and sm_lids

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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: Leon Romanovsky <leonro@mellanox.com>
This commit is contained in:
Leon Romanovsky 2017-06-28 15:38:36 +03:00 committed by Leon Romanovsky
parent 12026fbba6
commit 80a06dd36f
2 changed files with 16 additions and 1 deletions
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9
drivers/infiniband/core/nldev.c
View File

@ -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;
}

8
include/uapi/rdma/rdma_netlink.h
View File

@ -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 */