IB: Add protocol for USNIC

Add protocol definition for the proprietary the USNIC driver.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Christian Benvenuti <benve@cisco.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

2 files changed, 9 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/usnic/usnic_ib_main.c b/drivers/infiniband/hw/usnic/usnic_ib_main.c
index 0a89a955550b..dde0b23f6559 100644
--- a/drivers/infiniband/hw/usnic/usnic_ib_main.c
+++ b/drivers/infiniband/hw/usnic/usnic_ib_main.c
@@ -325,6 +325,7 @@ static int usnic_port_immutable(struct ib_device *ibdev, u8 port_num,
         if (err)
                 return err;
 
+        immutable->core_cap_flags = RDMA_CORE_PORT_USNIC;
         immutable->pkey_tbl_len = attr.pkey_tbl_len;
         immutable->gid_tbl_len = attr.gid_tbl_len;
 
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index f311c2593a85..07399023352b 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -490,6 +490,7 @@ static inline struct rdma_hw_stats *rdma_alloc_hw_stats_struct(
 #define RDMA_CORE_CAP_PROT_IWARP        0x00400000
 #define RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP 0x00800000
 #define RDMA_CORE_CAP_PROT_RAW_PACKET   0x01000000
+#define RDMA_CORE_CAP_PROT_USNIC        0x02000000
 
 #define RDMA_CORE_PORT_IBA_IB          (RDMA_CORE_CAP_PROT_IB  \
                                         | RDMA_CORE_CAP_IB_MAD \
@@ -515,6 +516,8 @@ static inline struct rdma_hw_stats *rdma_alloc_hw_stats_struct(
 
 #define RDMA_CORE_PORT_RAW_PACKET       (RDMA_CORE_CAP_PROT_RAW_PACKET)
 
+#define RDMA_CORE_PORT_USNIC            (RDMA_CORE_CAP_PROT_USNIC)
+
 struct ib_port_attr {
         u64                     subnet_prefix;
         enum ib_port_state      state;
@@ -2350,6 +2353,11 @@ static inline bool rdma_protocol_raw_packet(const struct ib_device *device, u8 p
         return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_RAW_PACKET;
 }
 
+static inline bool rdma_protocol_usnic(const struct ib_device *device, u8 port_num)
+{
+        return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_USNIC;
+}
+
 /**
  * rdma_cap_ib_mad - Check if the port of a device supports Infiniband
  * Management Datagrams.