forge/linux-pinenote
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

mlx5_core: Add support for page faults events and low level handling

Browse source 
* Add a handler function pointer in the mlx5_core_qp struct for page
  fault events. Handle page fault events by calling the handler
  function, if not NULL.
* Add on-demand paging capability query command.
* Export command for resuming QPs after page faults.
* Add various constants related to paging support.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Shachar Raindel <raindel@mellanox.com>
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Haggai Eran 2014-12-11 17:04:19 +02:00 • committed by Roland Dreier
parent 6cb7ff3dcf
commit e420f0c0f3
6 changed files with 291 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

54
include/linux/mlx5/device.h
View file

@ -119,6 +119,15 @@ enum {
MLX5_MAX_LOG_PKEY_TABLE = 5,
};
enum {
MLX5_MKEY_INBOX_PG_ACCESS = 1 << 31
};
enum {
MLX5_PFAULT_SUBTYPE_WQE = 0,
MLX5_PFAULT_SUBTYPE_RDMA = 1,
};
enum {
MLX5_PERM_LOCAL_READ = 1 << 2,
MLX5_PERM_LOCAL_WRITE = 1 << 3,
@ -215,6 +224,8 @@ enum mlx5_event {
MLX5_EVENT_TYPE_CMD = 0x0a,
MLX5_EVENT_TYPE_PAGE_REQUEST = 0xb,
MLX5_EVENT_TYPE_PAGE_FAULT = 0xc,
};
enum {
@ -300,6 +311,8 @@ enum {
enum {
HCA_CAP_OPMOD_GET_MAX = 0,
HCA_CAP_OPMOD_GET_CUR = 1,
HCA_CAP_OPMOD_GET_ODP_MAX = 4,
HCA_CAP_OPMOD_GET_ODP_CUR = 5
};
struct mlx5_inbox_hdr {
@ -329,6 +342,23 @@ struct mlx5_cmd_query_adapter_mbox_out {
u8 vsd_psid[16];
};
enum mlx5_odp_transport_cap_bits {
MLX5_ODP_SUPPORT_SEND = 1 << 31,
MLX5_ODP_SUPPORT_RECV = 1 << 30,
MLX5_ODP_SUPPORT_WRITE = 1 << 29,
MLX5_ODP_SUPPORT_READ = 1 << 28,
};
struct mlx5_odp_caps {
char reserved[0x10];
struct {
__be32 rc_odp_caps;
__be32 uc_odp_caps;
__be32 ud_odp_caps;
} per_transport_caps;
char reserved2[0xe4];
};
struct mlx5_cmd_init_hca_mbox_in {
struct mlx5_inbox_hdr hdr;
u8 rsvd0[2];
@ -449,6 +479,27 @@ struct mlx5_eqe_page_req {
__be32 rsvd1[5];
};
struct mlx5_eqe_page_fault {
__be32 bytes_committed;
union {
struct {
u16 reserved1;
__be16 wqe_index;
u16 reserved2;
__be16 packet_length;
u8 reserved3[12];
} __packed wqe;
struct {
__be32 r_key;
u16 reserved1;
__be16 packet_length;
__be32 rdma_op_len;
__be64 rdma_va;
} __packed rdma;
} __packed;
__be32 flags_qpn;
} __packed;
union ev_data {
__be32 raw[7];
struct mlx5_eqe_cmd cmd;
@ -460,6 +511,7 @@ union ev_data {
struct mlx5_eqe_congestion cong;
struct mlx5_eqe_stall_vl stall_vl;
struct mlx5_eqe_page_req req_pages;
struct mlx5_eqe_page_fault page_fault;
} __packed;
struct mlx5_eqe {
@ -826,7 +878,7 @@ struct mlx5_query_special_ctxs_mbox_out {
struct mlx5_create_mkey_mbox_in {
struct mlx5_inbox_hdr hdr;
__be32 input_mkey_index;
u8 rsvd0[4];
__be32 flags;
struct mlx5_mkey_seg seg;
u8 rsvd1[16];
__be32 xlat_oct_act_size;