diff options
Diffstat (limited to 'include/rdma')
| -rw-r--r-- | include/rdma/ib_addr.h | 1 | ||||
| -rw-r--r-- | include/rdma/ib_verbs.h | 44 |
2 files changed, 45 insertions, 0 deletions
diff --git a/include/rdma/ib_addr.h b/include/rdma/ib_addr.h index 11528591d0d7..c799caacf353 100644 --- a/include/rdma/ib_addr.h +++ b/include/rdma/ib_addr.h @@ -83,6 +83,7 @@ struct rdma_dev_addr { int bound_dev_if; enum rdma_transport_type transport; struct net *net; + enum rdma_network_type network; }; /** diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index ab05ef695d63..368fc22f30f1 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -51,6 +51,8 @@ #include <linux/socket.h> #include <linux/irq_poll.h> #include <uapi/linux/if_ether.h> +#include <net/ipv6.h> +#include <net/ip.h> #include <linux/atomic.h> #include <linux/mmu_notifier.h> @@ -109,6 +111,35 @@ enum rdma_protocol_type { __attribute_const__ enum rdma_transport_type rdma_node_get_transport(enum rdma_node_type node_type); +enum rdma_network_type { + RDMA_NETWORK_IB, + RDMA_NETWORK_ROCE_V1 = RDMA_NETWORK_IB, + RDMA_NETWORK_IPV4, + RDMA_NETWORK_IPV6 +}; + +static inline enum ib_gid_type ib_network_to_gid_type(enum rdma_network_type network_type) +{ + if (network_type == RDMA_NETWORK_IPV4 || + network_type == RDMA_NETWORK_IPV6) + return IB_GID_TYPE_ROCE_UDP_ENCAP; + + /* IB_GID_TYPE_IB same as RDMA_NETWORK_ROCE_V1 */ + return IB_GID_TYPE_IB; +} + +static inline enum rdma_network_type ib_gid_to_network_type(enum ib_gid_type gid_type, + union ib_gid *gid) +{ + if (gid_type == IB_GID_TYPE_IB) + return RDMA_NETWORK_IB; + + if (ipv6_addr_v4mapped((struct in6_addr *)gid)) + return RDMA_NETWORK_IPV4; + else + return RDMA_NETWORK_IPV6; +} + enum rdma_link_layer { IB_LINK_LAYER_UNSPECIFIED, IB_LINK_LAYER_INFINIBAND, @@ -537,6 +568,17 @@ struct ib_grh { union ib_gid dgid; }; +union rdma_network_hdr { + struct ib_grh ibgrh; + struct { + /* The IB spec states that if it's IPv4, the header + * is located in the last 20 bytes of the header. + */ + u8 reserved[20]; + struct iphdr roce4grh; + }; +}; + enum { IB_MULTICAST_QPN = 0xffffff }; @@ -773,6 +815,7 @@ enum ib_wc_flags { IB_WC_IP_CSUM_OK = (1<<3), IB_WC_WITH_SMAC = (1<<4), IB_WC_WITH_VLAN = (1<<5), + IB_WC_WITH_NETWORK_HDR_TYPE = (1<<6), }; struct ib_wc { @@ -798,6 +841,7 @@ struct ib_wc { u8 port_num; /* valid only for DR SMPs on switches */ u8 smac[ETH_ALEN]; u16 vlan_id; + u8 network_hdr_type; }; enum ib_cq_notify_flags { |