net/mlx5: Expose HW bits for Memory scheme ODP

Expose IFC bits to support the new memory scheme on demand paging.
Change the macro reading odp capabilities to be able to read from the
new IFC layout and align the code in upper layers to be compiled.

Signed-off-by: Michael Guralnik <michaelgur@nvidia.com>
Link: https://patch.msgid.link/20240909100504.29797-3-michaelgur@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>

diff --git a/drivers/infiniband/hw/mlx5/odp.c b/drivers/infiniband/hw/mlx5/odp.c
index 2218208..300504b 100644 (file)
--- a/drivers/infiniband/hw/mlx5/odp.c
+++ b/drivers/infiniband/hw/mlx5/odp.c
@@ -332,46 +332,46 @@ static void internal_fill_odp_caps(struct mlx5_ib_dev *dev)
        else
                dev->odp_max_size = BIT_ULL(MLX5_MAX_UMR_SHIFT + PAGE_SHIFT);
 
-       if (MLX5_CAP_ODP(dev->mdev, ud_odp_caps.send))
+       if (MLX5_CAP_ODP_SCHEME(dev->mdev, ud_odp_caps.send))
                caps->per_transport_caps.ud_odp_caps |= IB_ODP_SUPPORT_SEND;
 
-       if (MLX5_CAP_ODP(dev->mdev, ud_odp_caps.srq_receive))
+       if (MLX5_CAP_ODP_SCHEME(dev->mdev, ud_odp_caps.srq_receive))
                caps->per_transport_caps.ud_odp_caps |= IB_ODP_SUPPORT_SRQ_RECV;
 
-       if (MLX5_CAP_ODP(dev->mdev, rc_odp_caps.send))
+       if (MLX5_CAP_ODP_SCHEME(dev->mdev, rc_odp_caps.send))
                caps->per_transport_caps.rc_odp_caps |= IB_ODP_SUPPORT_SEND;
 
-       if (MLX5_CAP_ODP(dev->mdev, rc_odp_caps.receive))
+       if (MLX5_CAP_ODP_SCHEME(dev->mdev, rc_odp_caps.receive))
                caps->per_transport_caps.rc_odp_caps |= IB_ODP_SUPPORT_RECV;
 
-       if (MLX5_CAP_ODP(dev->mdev, rc_odp_caps.write))
+       if (MLX5_CAP_ODP_SCHEME(dev->mdev, rc_odp_caps.write))
                caps->per_transport_caps.rc_odp_caps |= IB_ODP_SUPPORT_WRITE;
 
-       if (MLX5_CAP_ODP(dev->mdev, rc_odp_caps.read))
+       if (MLX5_CAP_ODP_SCHEME(dev->mdev, rc_odp_caps.read))
                caps->per_transport_caps.rc_odp_caps |= IB_ODP_SUPPORT_READ;
 
-       if (MLX5_CAP_ODP(dev->mdev, rc_odp_caps.atomic))
+       if (MLX5_CAP_ODP_SCHEME(dev->mdev, rc_odp_caps.atomic))
                caps->per_transport_caps.rc_odp_caps |= IB_ODP_SUPPORT_ATOMIC;
 
-       if (MLX5_CAP_ODP(dev->mdev, rc_odp_caps.srq_receive))
+       if (MLX5_CAP_ODP_SCHEME(dev->mdev, rc_odp_caps.srq_receive))
                caps->per_transport_caps.rc_odp_caps |= IB_ODP_SUPPORT_SRQ_RECV;
 
-       if (MLX5_CAP_ODP(dev->mdev, xrc_odp_caps.send))
+       if (MLX5_CAP_ODP_SCHEME(dev->mdev, xrc_odp_caps.send))
                caps->per_transport_caps.xrc_odp_caps |= IB_ODP_SUPPORT_SEND;
 
-       if (MLX5_CAP_ODP(dev->mdev, xrc_odp_caps.receive))
+       if (MLX5_CAP_ODP_SCHEME(dev->mdev, xrc_odp_caps.receive))
                caps->per_transport_caps.xrc_odp_caps |= IB_ODP_SUPPORT_RECV;
 
-       if (MLX5_CAP_ODP(dev->mdev, xrc_odp_caps.write))
+       if (MLX5_CAP_ODP_SCHEME(dev->mdev, xrc_odp_caps.write))
                caps->per_transport_caps.xrc_odp_caps |= IB_ODP_SUPPORT_WRITE;
 
-       if (MLX5_CAP_ODP(dev->mdev, xrc_odp_caps.read))
+       if (MLX5_CAP_ODP_SCHEME(dev->mdev, xrc_odp_caps.read))
                caps->per_transport_caps.xrc_odp_caps |= IB_ODP_SUPPORT_READ;
 
-       if (MLX5_CAP_ODP(dev->mdev, xrc_odp_caps.atomic))
+       if (MLX5_CAP_ODP_SCHEME(dev->mdev, xrc_odp_caps.atomic))
                caps->per_transport_caps.xrc_odp_caps |= IB_ODP_SUPPORT_ATOMIC;
 
-       if (MLX5_CAP_ODP(dev->mdev, xrc_odp_caps.srq_receive))
+       if (MLX5_CAP_ODP_SCHEME(dev->mdev, xrc_odp_caps.srq_receive))
                caps->per_transport_caps.xrc_odp_caps |= IB_ODP_SUPPORT_SRQ_RECV;
 
        if (MLX5_CAP_GEN(dev->mdev, fixed_buffer_size) &&
@@ -388,13 +388,17 @@ static void mlx5_ib_page_fault_resume(struct mlx5_ib_dev *dev,
        int wq_num = pfault->event_subtype == MLX5_PFAULT_SUBTYPE_WQE ?
                     pfault->wqe.wq_num : pfault->token;
        u32 in[MLX5_ST_SZ_DW(page_fault_resume_in)] = {};
+       void *info;
        int err;
 
        MLX5_SET(page_fault_resume_in, in, opcode, MLX5_CMD_OP_PAGE_FAULT_RESUME);
-       MLX5_SET(page_fault_resume_in, in, page_fault_type, pfault->type);
-       MLX5_SET(page_fault_resume_in, in, token, pfault->token);
-       MLX5_SET(page_fault_resume_in, in, wq_number, wq_num);
-       MLX5_SET(page_fault_resume_in, in, error, !!error);
+
+       info = MLX5_ADDR_OF(page_fault_resume_in, in,
+                           page_fault_info.trans_page_fault_info);
+       MLX5_SET(trans_page_fault_info, info, page_fault_type, pfault->type);
+       MLX5_SET(trans_page_fault_info, info, fault_token, pfault->token);
+       MLX5_SET(trans_page_fault_info, info, wq_number, wq_num);
+       MLX5_SET(trans_page_fault_info, info, error, !!error);
 
        err = mlx5_cmd_exec_in(dev->mdev, page_fault_resume, in);
        if (err)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index 5b7e6f4..cc2aa46 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -479,20 +479,20 @@ static int handle_hca_cap_odp(struct mlx5_core_dev *dev, void *set_ctx)
                }                                                              \
        } while (0)
 
-       ODP_CAP_SET_MAX(dev, ud_odp_caps.srq_receive);
-       ODP_CAP_SET_MAX(dev, rc_odp_caps.srq_receive);
-       ODP_CAP_SET_MAX(dev, xrc_odp_caps.srq_receive);
-       ODP_CAP_SET_MAX(dev, xrc_odp_caps.send);
-       ODP_CAP_SET_MAX(dev, xrc_odp_caps.receive);
-       ODP_CAP_SET_MAX(dev, xrc_odp_caps.write);
-       ODP_CAP_SET_MAX(dev, xrc_odp_caps.read);
-       ODP_CAP_SET_MAX(dev, xrc_odp_caps.atomic);
-       ODP_CAP_SET_MAX(dev, dc_odp_caps.srq_receive);
-       ODP_CAP_SET_MAX(dev, dc_odp_caps.send);
-       ODP_CAP_SET_MAX(dev, dc_odp_caps.receive);
-       ODP_CAP_SET_MAX(dev, dc_odp_caps.write);
-       ODP_CAP_SET_MAX(dev, dc_odp_caps.read);
-       ODP_CAP_SET_MAX(dev, dc_odp_caps.atomic);
+       ODP_CAP_SET_MAX(dev, transport_page_fault_scheme_cap.ud_odp_caps.srq_receive);
+       ODP_CAP_SET_MAX(dev, transport_page_fault_scheme_cap.rc_odp_caps.srq_receive);
+       ODP_CAP_SET_MAX(dev, transport_page_fault_scheme_cap.xrc_odp_caps.srq_receive);
+       ODP_CAP_SET_MAX(dev, transport_page_fault_scheme_cap.xrc_odp_caps.send);
+       ODP_CAP_SET_MAX(dev, transport_page_fault_scheme_cap.xrc_odp_caps.receive);
+       ODP_CAP_SET_MAX(dev, transport_page_fault_scheme_cap.xrc_odp_caps.write);
+       ODP_CAP_SET_MAX(dev, transport_page_fault_scheme_cap.xrc_odp_caps.read);
+       ODP_CAP_SET_MAX(dev, transport_page_fault_scheme_cap.xrc_odp_caps.atomic);
+       ODP_CAP_SET_MAX(dev, transport_page_fault_scheme_cap.dc_odp_caps.srq_receive);
+       ODP_CAP_SET_MAX(dev, transport_page_fault_scheme_cap.dc_odp_caps.send);
+       ODP_CAP_SET_MAX(dev, transport_page_fault_scheme_cap.dc_odp_caps.receive);
+       ODP_CAP_SET_MAX(dev, transport_page_fault_scheme_cap.dc_odp_caps.write);
+       ODP_CAP_SET_MAX(dev, transport_page_fault_scheme_cap.dc_odp_caps.read);
+       ODP_CAP_SET_MAX(dev, transport_page_fault_scheme_cap.dc_odp_caps.atomic);
 
        if (!do_set)
                return 0;

diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index ba875a6..bd081f2 100644 (file)
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -1369,6 +1369,10 @@ enum mlx5_qcam_feature_groups {
 #define MLX5_CAP_ODP(mdev, cap)\
        MLX5_GET(odp_cap, mdev->caps.hca[MLX5_CAP_ODP]->cur, cap)
 
+#define MLX5_CAP_ODP_SCHEME(mdev, cap)                       \
+       MLX5_GET(odp_cap, mdev->caps.hca[MLX5_CAP_ODP]->cur, \
+                transport_page_fault_scheme_cap.cap)
+
 #define MLX5_CAP_ODP_MAX(mdev, cap)\
        MLX5_GET(odp_cap, mdev->caps.hca[MLX5_CAP_ODP]->max, cap)
 

diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index ec1117d..3e3336b 100644 (file)
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -1326,11 +1326,13 @@ struct mlx5_ifc_atomic_caps_bits {
        u8         reserved_at_e0[0x720];
 };
 
-struct mlx5_ifc_odp_cap_bits {
+struct mlx5_ifc_odp_scheme_cap_bits {
        u8         reserved_at_0[0x40];
 
        u8         sig[0x1];
-       u8         reserved_at_41[0x1f];
+       u8         reserved_at_41[0x4];
+       u8         page_prefetch[0x1];
+       u8         reserved_at_46[0x1a];
 
        u8         reserved_at_60[0x20];
 
@@ -1344,7 +1346,20 @@ struct mlx5_ifc_odp_cap_bits {
 
        struct mlx5_ifc_odp_per_transport_service_cap_bits dc_odp_caps;
 
-       u8         reserved_at_120[0x6E0];
+       u8         reserved_at_120[0xe0];
+};
+
+struct mlx5_ifc_odp_cap_bits {
+       struct mlx5_ifc_odp_scheme_cap_bits transport_page_fault_scheme_cap;
+
+       struct mlx5_ifc_odp_scheme_cap_bits memory_page_fault_scheme_cap;
+
+       u8         reserved_at_400[0x200];
+
+       u8         mem_page_fault[0x1];
+       u8         reserved_at_601[0x1f];
+
+       u8         reserved_at_620[0x1e0];
 };
 
 struct mlx5_ifc_tls_cap_bits {
@@ -2034,7 +2049,8 @@ struct mlx5_ifc_cmd_hca_cap_2_bits {
        u8         min_mkey_log_entity_size_fixed_buffer[0x5];
        u8         ec_vf_vport_base[0x10];
 
-       u8         reserved_at_3a0[0x10];
+       u8         reserved_at_3a0[0xa];
+       u8         max_mkey_log_entity_size_mtt[0x6];
        u8         max_rqt_vhca_id[0x10];
 
        u8         reserved_at_3c0[0x20];
@@ -7258,6 +7274,30 @@ struct mlx5_ifc_qp_2err_in_bits {
        u8         reserved_at_60[0x20];
 };
 
+struct mlx5_ifc_trans_page_fault_info_bits {
+       u8         error[0x1];
+       u8         reserved_at_1[0x4];
+       u8         page_fault_type[0x3];
+       u8         wq_number[0x18];
+
+       u8         reserved_at_20[0x8];
+       u8         fault_token[0x18];
+};
+
+struct mlx5_ifc_mem_page_fault_info_bits {
+       u8          error[0x1];
+       u8          reserved_at_1[0xf];
+       u8          fault_token_47_32[0x10];
+
+       u8          fault_token_31_0[0x20];
+};
+
+union mlx5_ifc_page_fault_resume_in_page_fault_info_auto_bits {
+       struct mlx5_ifc_trans_page_fault_info_bits trans_page_fault_info;
+       struct mlx5_ifc_mem_page_fault_info_bits mem_page_fault_info;
+       u8          reserved_at_0[0x40];
+};
+
 struct mlx5_ifc_page_fault_resume_out_bits {
        u8         status[0x8];
        u8         reserved_at_8[0x18];
@@ -7274,13 +7314,8 @@ struct mlx5_ifc_page_fault_resume_in_bits {
        u8         reserved_at_20[0x10];
        u8         op_mod[0x10];
 
-       u8         error[0x1];
-       u8         reserved_at_41[0x4];
-       u8         page_fault_type[0x3];
-       u8         wq_number[0x18];
-
-       u8         reserved_at_60[0x8];
-       u8         token[0x18];
+       union mlx5_ifc_page_fault_resume_in_page_fault_info_auto_bits
+               page_fault_info;
 };
 
 struct mlx5_ifc_nop_out_bits {