From 64c68385a39bb676c76da36164ab696e8da78842 Mon Sep 17 00:00:00 2001 From: Michael Guralnik Date: Mon, 9 Sep 2024 13:04:59 +0300 Subject: RDMA/mlx5: Add new ODP memory scheme eqe format Add new fields to support the new memory scheme page fault and extend the token field to u64 as in the new scheme the token is 48 bit. Signed-off-by: Michael Guralnik Link: https://patch.msgid.link/20240909100504.29797-4-michaelgur@nvidia.com Signed-off-by: Leon Romanovsky --- include/linux/mlx5/device.h | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-) (limited to 'include/linux/mlx5') diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h index bd081f276654..154095256d0d 100644 --- a/include/linux/mlx5/device.h +++ b/include/linux/mlx5/device.h @@ -211,6 +211,7 @@ enum { enum { MLX5_PFAULT_SUBTYPE_WQE = 0, MLX5_PFAULT_SUBTYPE_RDMA = 1, + MLX5_PFAULT_SUBTYPE_MEMORY = 2, }; enum wqe_page_fault_type { @@ -646,10 +647,11 @@ struct mlx5_eqe_page_req { __be32 rsvd1[5]; }; +#define MEMORY_SCHEME_PAGE_FAULT_GRANULARITY 4096 struct mlx5_eqe_page_fault { - __be32 bytes_committed; union { struct { + __be32 bytes_committed; u16 reserved1; __be16 wqe_index; u16 reserved2; @@ -659,6 +661,7 @@ struct mlx5_eqe_page_fault { __be32 pftype_wq; } __packed wqe; struct { + __be32 bytes_committed; __be32 r_key; u16 reserved1; __be16 packet_length; @@ -666,6 +669,23 @@ struct mlx5_eqe_page_fault { __be64 rdma_va; __be32 pftype_token; } __packed rdma; + struct { + u8 flags; + u8 reserved1; + __be16 post_demand_fault_pages; + __be16 pre_demand_fault_pages; + __be16 token47_32; + __be32 token31_0; + /* + * FW changed from specifying the fault size in byte + * count to 4k pages granularity. The size specified + * in pages uses bits 31:12, to keep backward + * compatibility. + */ + __be32 demand_fault_pages; + __be32 mkey; + __be64 va; + } __packed memory; } __packed; } __packed; -- cgit v1.2.3