Add a command to retrieve the MAC address of a port's GID. This is required by libraries to build work requests when the port's link layer is Ethernet.
Signed-off-by: Eli Cohen <[email protected]> --- include/infiniband/driver.h | 1 + include/infiniband/kern-abi.h | 20 +++++++++++++++++++- src/cmd.c | 19 +++++++++++++++++++ src/libibverbs.map | 1 + 4 files changed, 40 insertions(+), 1 deletions(-) diff --git a/include/infiniband/driver.h b/include/infiniband/driver.h index 9a81416..8d7c2c6 100644 --- a/include/infiniband/driver.h +++ b/include/infiniband/driver.h @@ -131,6 +131,7 @@ 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_mac(struct ibv_pd *pd, uint8_t port, uint8_t *gid, uint8_t *mac); 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..345d70f 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_MAC }; /* @@ -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_MAC_V2 = -1, }; struct ibv_destroy_cq_v1 { @@ -879,4 +881,20 @@ struct ibv_create_srq_resp_v5 { __u32 srq_handle; }; +struct ibv_get_mac { + __u32 command; + __u16 in_words; + __u16 out_words; + __u64 response; + __u32 pd_handle; + __u8 port; + __u8 reserved[3]; + __u8 dgid[16]; +}; + +struct ibv_get_mac_resp { + __u8 mac[6]; + __u16 reserved; +}; + #endif /* KERN_ABI_H */ diff --git a/src/cmd.c b/src/cmd.c index 39af833..c8aa7ee 100644 --- a/src/cmd.c +++ b/src/cmd.c @@ -1123,3 +1123,22 @@ int ibv_cmd_detach_mcast(struct ibv_qp *qp, const union ibv_gid *gid, uint16_t l return 0; } + +int ibv_cmd_get_mac(struct ibv_pd *pd, uint8_t port, uint8_t *gid, uint8_t *mac) +{ + struct ibv_get_mac cmd; + struct ibv_get_mac_resp resp; + + IBV_INIT_CMD_RESP(&cmd, sizeof cmd, GET_MAC, &resp, sizeof resp); + memcpy(cmd.dgid, gid, sizeof cmd.dgid); + cmd.pd_handle = pd->handle; + cmd.port = port; + + if (write(pd->context->cmd_fd, &cmd, sizeof cmd) != sizeof cmd) + return errno; + + memcpy(mac, resp.mac, 6); + + return 0; +} + diff --git a/src/libibverbs.map b/src/libibverbs.map index 1827da0..1688e73 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_mac; ibv_copy_qp_attr_from_kern; ibv_copy_path_rec_from_kern; ibv_copy_path_rec_to_kern; -- 1.6.6 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
