From 4dca650991e4175b8d5bae7ff6f1637a0c42be4a Mon Sep 17 00:00:00 2001 From: Michael Guralnik Date: Wed, 20 May 2020 13:59:06 +0300 Subject: [PATCH] net/mlx5: Enable QP number request when creating IPoIB underlay QP If in the process of creating the underlay QP for an IPoIB interface the user has set the address and specifically the 1st-3rd bytes representing the QP number, use the requested QP number when creating the underlay QP. For a user to be able to request a QP number on QP creation, the MKEY_BY_NAME NVCONFIG should be set. As mkey_by_name and qp_by_name are coupled in FW. This requires driver to query the mkey_by_name max cap during initialization and set the current cap if it was enabled in FW. Signed-off-by: Michael Guralnik Reviewed-by: Saeed Mahameed Signed-off-by: Leon Romanovsky --- drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c | 7 +++++++ drivers/net/ethernet/mellanox/mlx5/core/main.c | 3 +++ include/linux/mlx5/mlx5_ifc.h | 9 +++++++-- 3 files changed, 17 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c index 690b822c..d1266d8 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c @@ -226,13 +226,20 @@ void mlx5i_uninit_underlay_qp(struct mlx5e_priv *priv) int mlx5i_create_underlay_qp(struct mlx5e_priv *priv) { + unsigned char *dev_addr = priv->netdev->dev_addr; u32 out[MLX5_ST_SZ_DW(create_qp_out)] = {}; u32 in[MLX5_ST_SZ_DW(create_qp_in)] = {}; struct mlx5i_priv *ipriv = priv->ppriv; void *addr_path; + int qpn = 0; int ret = 0; void *qpc; + if (MLX5_CAP_GEN(priv->mdev, mkey_by_name)) { + qpn = (dev_addr[1] << 16) + (dev_addr[2] << 8) + dev_addr[3]; + MLX5_SET(create_qp_in, in, input_qpn, qpn); + } + qpc = MLX5_ADDR_OF(create_qp_in, in, qpc); MLX5_SET(qpc, qpc, st, MLX5_QP_ST_UD); MLX5_SET(qpc, qpc, pm_state, MLX5_QP_PM_MIGRATED); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c index 8b65890..623785f 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c @@ -557,6 +557,9 @@ static int handle_hca_cap(struct mlx5_core_dev *dev, void *set_ctx) if (MLX5_CAP_GEN_MAX(dev, release_all_pages)) MLX5_SET(cmd_hca_cap, set_hca_cap, release_all_pages, 1); + if (MLX5_CAP_GEN_MAX(dev, mkey_by_name)) + MLX5_SET(cmd_hca_cap, set_hca_cap, mkey_by_name, 1); + return set_caps(dev, set_ctx, MLX5_SET_HCA_CAP_OP_MOD_GENERAL_DEVICE); } diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index a227518..3786888 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -1392,7 +1392,10 @@ struct mlx5_ifc_cmd_hca_cap_bits { u8 bf[0x1]; u8 driver_version[0x1]; u8 pad_tx_eth_packet[0x1]; - u8 reserved_at_263[0x8]; + u8 reserved_at_263[0x3]; + u8 mkey_by_name[0x1]; + u8 reserved_at_267[0x4]; + u8 log_bf_reg_size[0x5]; u8 reserved_at_270[0x8]; @@ -7712,8 +7715,10 @@ struct mlx5_ifc_create_qp_in_bits { u8 reserved_at_20[0x10]; u8 op_mod[0x10]; - u8 reserved_at_40[0x40]; + u8 reserved_at_40[0x8]; + u8 input_qpn[0x18]; + u8 reserved_at_60[0x20]; u8 opt_param_mask[0x20]; u8 ece[0x20]; -- 2.7.4