Add a command to retrieve the layer 2 address of an ethernet port. The layer 2
address is comprised of the port's MAC address and the VLAN ID.This is required
by libraries to build work requests when the port's link layer is Ethernet.
Signed-off-by: Eli Cohen <e...@mellanox.co.il>
---
include/infiniband/driver.h | 2 ++
include/infiniband/kern-abi.h | 23 ++++++++++++++++++++++-
src/cmd.c | 24 ++++++++++++++++++++++++
src/libibverbs.map | 1 +
4 files changed, 49 insertions(+), 1 deletions(-)
diff --git a/include/infiniband/driver.h b/include/infiniband/driver.h
index 9a81416..3e09548 100644
--- a/include/infiniband/driver.h
+++ b/include/infiniband/driver.h
@@ -131,6 +131,8 @@ int ibv_cmd_create_ah(struct ibv_pd *pd, struct ibv_ah *ah,
int ibv_cmd_destroy_ah(struct ibv_ah *ah);
int ibv_cmd_attach_mcast(struct ibv_qp *qp, const union ibv_gid *gid, uint16_t
lid);
int ibv_cmd_detach_mcast(struct ibv_qp *qp, const union ibv_gid *gid, uint16_t
lid);
+int ibv_cmd_get_eth_l2_addr(struct ibv_pd *pd, uint8_t port, const union
ibv_gid *gid,
+ int sgid_idx, uint8_t *mac, uint16_t *vlan_id,
uint8_t *tagged);
int ibv_dontfork_range(void *base, size_t size);
int ibv_dofork_range(void *base, size_t size);
diff --git a/include/infiniband/kern-abi.h b/include/infiniband/kern-abi.h
index 619ea7e..642c7db 100644
--- a/include/infiniband/kern-abi.h
+++ b/include/infiniband/kern-abi.h
@@ -85,7 +85,8 @@ enum {
IB_USER_VERBS_CMD_MODIFY_SRQ,
IB_USER_VERBS_CMD_QUERY_SRQ,
IB_USER_VERBS_CMD_DESTROY_SRQ,
- IB_USER_VERBS_CMD_POST_SRQ_RECV
+ IB_USER_VERBS_CMD_POST_SRQ_RECV,
+ IB_USER_VERBS_CMD_GET_ETH_L2_ADDR,
};
/*
@@ -804,6 +805,7 @@ enum {
* trick opcodes in IBV_INIT_CMD() doesn't break.
*/
IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL_V2 = -1,
+ IB_USER_VERBS_CMD_GET_ETH_L2_ADDR_V2 = -1,
};
struct ibv_destroy_cq_v1 {
@@ -879,4 +881,23 @@ struct ibv_create_srq_resp_v5 {
__u32 srq_handle;
};
+struct ibv_get_eth_l2_addr {
+ __u32 command;
+ __u16 in_words;
+ __u16 out_words;
+ __u64 response;
+ __u32 pd_handle;
+ __u8 port;
+ __u8 sgid_idx;
+ __u8 reserved[2];
+ __u8 dgid[16];
+};
+
+struct ibv_get_eth_l2_addr_resp {
+ __u8 mac[6];
+ __u16 vlan_id;
+ __u8 tagged;
+ __u8 reserved[3];
+};
+
#endif /* KERN_ABI_H */
diff --git a/src/cmd.c b/src/cmd.c
index 39af833..6a3c101 100644
--- a/src/cmd.c
+++ b/src/cmd.c
@@ -1123,3 +1123,27 @@ int ibv_cmd_detach_mcast(struct ibv_qp *qp, const union
ibv_gid *gid, uint16_t l
return 0;
}
+
+int ibv_cmd_get_eth_l2_addr(struct ibv_pd *pd, uint8_t port, const union
ibv_gid *gid,
+ int sgid_idx, uint8_t *mac, uint16_t *vlan_id,
uint8_t *tagged)
+
+{
+ struct ibv_get_eth_l2_addr cmd;
+ struct ibv_get_eth_l2_addr_resp resp;
+
+ IBV_INIT_CMD_RESP(&cmd, sizeof cmd, GET_ETH_L2_ADDR, &resp, sizeof
resp);
+ memcpy(cmd.dgid, gid, sizeof cmd.dgid);
+ cmd.pd_handle = pd->handle;
+ cmd.port = port;
+ cmd.sgid_idx = sgid_idx;
+
+ if (write(pd->context->cmd_fd, &cmd, sizeof cmd) != sizeof cmd)
+ return errno;
+
+ memcpy(mac, resp.mac, 6);
+ *vlan_id = resp.vlan_id;
+ *tagged = resp.tagged;
+
+ return 0;
+}
+
diff --git a/src/libibverbs.map b/src/libibverbs.map
index 1827da0..af52d0d 100644
--- a/src/libibverbs.map
+++ b/src/libibverbs.map
@@ -64,6 +64,7 @@ IBVERBS_1.0 {
ibv_cmd_destroy_ah;
ibv_cmd_attach_mcast;
ibv_cmd_detach_mcast;
+ ibv_cmd_get_eth_l2_addr;
ibv_copy_qp_attr_from_kern;
ibv_copy_path_rec_from_kern;
ibv_copy_path_rec_to_kern;
--
1.7.0
_______________________________________________
ewg mailing list
ewg@lists.openfabrics.org
http://lists.openfabrics.org/cgi-bin/mailman/listinfo/ewg
