From 7766a99fdcd30c78fc8299db9102e3624232007c Mon Sep 17 00:00:00 2001 From: Matan Barak Date: Wed, 23 Dec 2015 14:56:50 +0200 Subject: [PATCH] IB/core: Add ROCE_UDP_ENCAP (RoCE V2) type Adding RoCE v2 GID type and port type. Vendors which support this type will get their GID table populated with RoCE v2 GIDs automatically. Signed-off-by: Matan Barak Signed-off-by: Doug Ledford --- drivers/infiniband/core/cache.c | 1 + drivers/infiniband/core/roce_gid_mgmt.c | 3 ++- include/rdma/ib_verbs.h | 23 +++++++++++++++++++++-- 3 files changed, 24 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c index 06e47e197fde..4a2968b1cf56 100644 --- a/drivers/infiniband/core/cache.c +++ b/drivers/infiniband/core/cache.c @@ -128,6 +128,7 @@ static void dispatch_gid_change_event(struct ib_device *ib_dev, u8 port) static const char * const gid_type_str[] = { [IB_GID_TYPE_IB] = "IB/RoCE v1", + [IB_GID_TYPE_ROCE_UDP_ENCAP] = "RoCE v2", }; const char *ib_cache_gid_type_str(enum ib_gid_type gid_type) diff --git a/drivers/infiniband/core/roce_gid_mgmt.c b/drivers/infiniband/core/roce_gid_mgmt.c index 61c27a704e77..1e3673f31dad 100644 --- a/drivers/infiniband/core/roce_gid_mgmt.c +++ b/drivers/infiniband/core/roce_gid_mgmt.c @@ -71,7 +71,8 @@ static const struct { bool (*is_supported)(const struct ib_device *device, u8 port_num); enum ib_gid_type gid_type; } PORT_CAP_TO_GID_TYPE[] = { - {rdma_protocol_roce, IB_GID_TYPE_ROCE}, + {rdma_protocol_roce_eth_encap, IB_GID_TYPE_ROCE}, + {rdma_protocol_roce_udp_encap, IB_GID_TYPE_ROCE_UDP_ENCAP}, }; #define CAP_TO_GID_TABLE_SIZE ARRAY_SIZE(PORT_CAP_TO_GID_TYPE) diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 00d2006ad816..ab05ef695d63 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -73,6 +73,7 @@ enum ib_gid_type { /* If link layer is Ethernet, this is RoCE V1 */ IB_GID_TYPE_IB = 0, IB_GID_TYPE_ROCE = 0, + IB_GID_TYPE_ROCE_UDP_ENCAP = 1, IB_GID_TYPE_SIZE }; @@ -403,6 +404,7 @@ union rdma_protocol_stats { #define RDMA_CORE_CAP_PROT_IB 0x00100000 #define RDMA_CORE_CAP_PROT_ROCE 0x00200000 #define RDMA_CORE_CAP_PROT_IWARP 0x00400000 +#define RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP 0x00800000 #define RDMA_CORE_PORT_IBA_IB (RDMA_CORE_CAP_PROT_IB \ | RDMA_CORE_CAP_IB_MAD \ @@ -415,6 +417,12 @@ union rdma_protocol_stats { | RDMA_CORE_CAP_IB_CM \ | RDMA_CORE_CAP_AF_IB \ | RDMA_CORE_CAP_ETH_AH) +#define RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP \ + (RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP \ + | RDMA_CORE_CAP_IB_MAD \ + | RDMA_CORE_CAP_IB_CM \ + | RDMA_CORE_CAP_AF_IB \ + | RDMA_CORE_CAP_ETH_AH) #define RDMA_CORE_PORT_IWARP (RDMA_CORE_CAP_PROT_IWARP \ | RDMA_CORE_CAP_IW_CM) #define RDMA_CORE_PORT_INTEL_OPA (RDMA_CORE_PORT_IBA_IB \ @@ -2000,6 +2008,17 @@ static inline bool rdma_protocol_ib(const struct ib_device *device, u8 port_num) } static inline bool rdma_protocol_roce(const struct ib_device *device, u8 port_num) +{ + return device->port_immutable[port_num].core_cap_flags & + (RDMA_CORE_CAP_PROT_ROCE | RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP); +} + +static inline bool rdma_protocol_roce_udp_encap(const struct ib_device *device, u8 port_num) +{ + return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP; +} + +static inline bool rdma_protocol_roce_eth_encap(const struct ib_device *device, u8 port_num) { return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_ROCE; } @@ -2011,8 +2030,8 @@ static inline bool rdma_protocol_iwarp(const struct ib_device *device, u8 port_n static inline bool rdma_ib_or_roce(const struct ib_device *device, u8 port_num) { - return device->port_immutable[port_num].core_cap_flags & - (RDMA_CORE_CAP_PROT_IB | RDMA_CORE_CAP_PROT_ROCE); + return rdma_protocol_ib(device, port_num) || + rdma_protocol_roce(device, port_num); } /** -- 2.20.1