From: Moni Shoua <mo...@mellanox.com> Query the RoCE support from firmware using the appropriate firmware commands. Downstream patches will read these capabilities and act accordingly.
Signed-off-by: Moni Shoua <mo...@mellanox.com> --- drivers/net/ethernet/mellanox/mlx4/fw.c | 3 +++ drivers/net/ethernet/mellanox/mlx4/main.c | 6 +++++- include/linux/mlx4/device.h | 11 +++++++++-- 3 files changed, 17 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c index 90db94e..bdd6822 100644 --- a/drivers/net/ethernet/mellanox/mlx4/fw.c +++ b/drivers/net/ethernet/mellanox/mlx4/fw.c @@ -157,6 +157,7 @@ static void dump_dev_cap_flags2(struct mlx4_dev *dev, u64 flags) [29] = "802.1ad offload support", [31] = "Modifying loopback source checks using UPDATE_QP support", [32] = "Loopback source checks support", + [33] = "RoCEv2 support" }; int i; @@ -905,6 +906,8 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_EQE_STRIDE; MLX4_GET(dev_cap->bmme_flags, outbox, QUERY_DEV_CAP_BMME_FLAGS_OFFSET); + if (dev_cap->bmme_flags & MLX4_FLAG_ROCE_V1_V2) + dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_ROCE_V1_V2; if (dev_cap->bmme_flags & MLX4_FLAG_PORT_REMAP) dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_PORT_REMAP; MLX4_GET(field, outbox, QUERY_DEV_CAP_CONFIG_DEV_OFFSET); diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index 31c491e..fb4968f 100644 --- a/drivers/net/ethernet/mellanox/mlx4/main.c +++ b/drivers/net/ethernet/mellanox/mlx4/main.c @@ -424,8 +424,12 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) if (mlx4_priv(dev)->pci_dev_data & MLX4_PCI_DEV_FORCE_SENSE_PORT) dev->caps.flags |= MLX4_DEV_CAP_FLAG_SENSE_SUPPORT; /* Don't do sense port on multifunction devices (for now at least) */ - if (mlx4_is_mfunc(dev)) + /* Don't do enable RoCE V2 on multifunction devices */ + if (mlx4_is_mfunc(dev)) { dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_SENSE_SUPPORT; + dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_ROCE_V1_V2; + mlx4_dbg(dev, "RoCE V2 is not supported when SR-IOV is enabled\n"); + } if (mlx4_low_memory_profile()) { dev->caps.log_num_macs = MLX4_MIN_LOG_NUM_MAC; diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h index d3133be..dbf39ab 100644 --- a/include/linux/mlx4/device.h +++ b/include/linux/mlx4/device.h @@ -216,6 +216,7 @@ enum { MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN = 1LL << 30, MLX4_DEV_CAP_FLAG2_UPDATE_QP_SRC_CHECK_LB = 1ULL << 31, MLX4_DEV_CAP_FLAG2_LB_SRC_CHK = 1ULL << 32, + MLX4_DEV_CAP_FLAG2_ROCE_V1_V2 = 1LL << 33, }; enum { @@ -267,6 +268,7 @@ enum { MLX4_BMME_FLAG_TYPE_2_WIN = 1 << 9, MLX4_BMME_FLAG_RESERVED_LKEY = 1 << 10, MLX4_BMME_FLAG_FAST_REG_WR = 1 << 11, + MLX4_BMME_FLAG_ROCE_V1_V2 = 1 << 19, MLX4_BMME_FLAG_PORT_REMAP = 1 << 24, MLX4_BMME_FLAG_VSD_INIT2RTR = 1 << 28, }; @@ -275,6 +277,10 @@ enum { MLX4_FLAG_PORT_REMAP = MLX4_BMME_FLAG_PORT_REMAP }; +enum { + MLX4_FLAG_ROCE_V1_V2 = MLX4_BMME_FLAG_ROCE_V1_V2 +}; + enum mlx4_event { MLX4_EVENT_TYPE_COMP = 0x00, MLX4_EVENT_TYPE_PATH_MIG = 0x01, @@ -984,9 +990,10 @@ struct mlx4_mad_ifc { if (((dev)->caps.port_mask[port] != MLX4_PORT_TYPE_IB)) #define mlx4_foreach_ib_transport_port(port, dev) \ - for ((port) = 1; (port) <= (dev)->caps.num_ports; (port)++) \ + for ((port) = 1; (port) <= (dev)->caps.num_ports; (port)++) \ if (((dev)->caps.port_mask[port] == MLX4_PORT_TYPE_IB) || \ - ((dev)->caps.flags & MLX4_DEV_CAP_FLAG_IBOE)) + ((dev)->caps.flags & MLX4_DEV_CAP_FLAG_IBOE) || \ + ((dev)->caps.flags2 & MLX4_DEV_CAP_FLAG2_ROCE_V1_V2)) #define MLX4_INVALID_SLAVE_ID 0xFF #define MLX4_SINK_COUNTER_INDEX(dev) (dev->caps.max_counters - 1) -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html