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