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common/mlx5: prepare support of packet pacing

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This patch prepares the common part of the mlx5 PMDs to
support packet send scheduling on mbuf timestamps:

  - the DevX routine to query the packet pacing HCA capabilities
  - packet pacing Send Queue attributes support
  - the hardware related definitions

Signed-off-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
This commit is contained in:
Viacheslav Ovsiienko 2020-07-16 08:23:04 +00:00 committed by Ferruh Yigit
parent b458bd4cf7
commit 79a7e409a2
7 changed files with 161 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
drivers/common/mlx5/Makefile
View File

@ -171,6 +171,16 @@ mlx5_autoconf.h.new: $(RTE_SDK)/buildtools/auto-config-h.sh
infiniband/mlx5dv.h \
func mlx5dv_devx_qp_query \
$(AUTOCONF_OUTPUT)
$Q sh -- '$<' '$@' \
HAVE_MLX5DV_DEVX_UAR_OFFSET \
infiniband/mlx5dv.h \
field "struct mlx5dv_devx_uar.mmap_off" \
$(AUTOCONF_OUTPUT)
$Q sh -- '$<' '$@' \
HAVE_MLX5DV_PP_ALLOC \
infiniband/mlx5dv.h \
func mlx5dv_pp_alloc \
$(AUTOCONF_OUTPUT)
$Q sh -- '$<' '$@' \
HAVE_MLX5DV_DR_ACTION_DEST_DEVX_TIR \
infiniband/mlx5dv.h \
@ -206,6 +216,21 @@ mlx5_autoconf.h.new: $(RTE_SDK)/buildtools/auto-config-h.sh
infiniband/mlx5dv.h \
func mlx5dv_dr_domain_set_reclaim_device_memory \
$(AUTOCONF_OUTPUT)
$Q sh -- '$<' '$@' \
HAVE_MLX5_OPCODE_ENHANCED_MPSW \
infiniband/mlx5dv.h \
enum MLX5_OPCODE_ENHANCED_MPSW \
$(AUTOCONF_OUTPUT)
$Q sh -- '$<' '$@' \
HAVE_MLX5_OPCODE_SEND_EN \
infiniband/mlx5dv.h \
enum MLX5_OPCODE_SEND_EN \
$(AUTOCONF_OUTPUT)
$Q sh -- '$<' '$@' \
HAVE_MLX5_OPCODE_WAIT \
infiniband/mlx5dv.h \
enum MLX5_OPCODE_WAIT \
$(AUTOCONF_OUTPUT)
$Q sh -- '$<' '$@' \
HAVE_ETHTOOL_LINK_MODE_25G \
/usr/include/linux/ethtool.h \

10
drivers/common/mlx5/linux/meson.build
View File

@ -64,6 +64,8 @@ has_member_args = [
'struct ibv_counter_set_init_attr', 'counter_set_id' ],
[ 'HAVE_IBV_DEVICE_COUNTERS_SET_V45', 'infiniband/verbs.h',
'struct ibv_counters_init_attr', 'comp_mask' ],
[ 'HAVE_MLX5DV_DEVX_UAR_OFFSET', 'infiniband/mlx5dv.h',
'struct mlx5dv_devx_uar', 'mmap_off' ],
]
# input array for meson symbol search:
# [ "MACRO to define if found", "header for the search",
@ -101,6 +103,8 @@ has_sym_args = [
'mlx5dv_devx_obj_query_async' ],
[ 'HAVE_IBV_DEVX_QP', 'infiniband/mlx5dv.h',
'mlx5dv_devx_qp_query' ],
[ 'HAVE_MLX5DV_PP_ALLOC', 'infiniband/mlx5dv.h',
'mlx5dv_pp_alloc' ],
[ 'HAVE_MLX5DV_DR_ACTION_DEST_DEVX_TIR', 'infiniband/mlx5dv.h',
'mlx5dv_dr_action_create_dest_devx_tir' ],
[ 'HAVE_IBV_DEVX_EVENT', 'infiniband/mlx5dv.h',
@ -116,6 +120,12 @@ has_sym_args = [
[ 'HAVE_MLX5DV_DR_VLAN', 'infiniband/mlx5dv.h',
'mlx5dv_dr_action_create_push_vlan' ],
[ 'HAVE_IBV_VAR', 'infiniband/mlx5dv.h', 'mlx5dv_alloc_var' ],
[ 'HAVE_MLX5_OPCODE_ENHANCED_MPSW', 'infiniband/mlx5dv.h',
'MLX5_OPCODE_ENHANCED_MPSW' ],
[ 'HAVE_MLX5_OPCODE_SEND_EN', 'infiniband/mlx5dv.h',
'MLX5_OPCODE_SEND_EN' ],
[ 'HAVE_MLX5_OPCODE_WAIT', 'infiniband/mlx5dv.h',
'MLX5_OPCODE_WAIT' ],
[ 'HAVE_SUPPORTED_40000baseKR4_Full', 'linux/ethtool.h',
'SUPPORTED_40000baseKR4_Full' ],
[ 'HAVE_SUPPORTED_40000baseCR4_Full', 'linux/ethtool.h',

31
drivers/common/mlx5/linux/mlx5_glue.c
View File

@ -1195,7 +1195,6 @@ mlx5_glue_dv_free_var(struct mlx5dv_var *var)
#endif
}
static void
mlx5_glue_dr_reclaim_domain_memory(void *domain, uint32_t enable)
{
@ -1207,6 +1206,34 @@ mlx5_glue_dr_reclaim_domain_memory(void *domain, uint32_t enable)
#endif
}
static struct mlx5dv_pp *
mlx5_glue_dv_alloc_pp(struct ibv_context *context,
size_t pp_context_sz,
const void *pp_context,
uint32_t flags)
{
#ifdef HAVE_MLX5DV_PP_ALLOC
return mlx5dv_pp_alloc(context, pp_context_sz, pp_context, flags);
#else
RTE_SET_USED(context);
RTE_SET_USED(pp_context_sz);
RTE_SET_USED(pp_context);
RTE_SET_USED(flags);
errno = ENOTSUP;
return NULL;
#endif
}
static void
mlx5_glue_dv_free_pp(struct mlx5dv_pp *pp)
{
#ifdef HAVE_MLX5DV_PP_ALLOC
mlx5dv_pp_free(pp);
#else
RTE_SET_USED(pp);
#endif
}
__rte_cache_aligned
const struct mlx5_glue *mlx5_glue = &(const struct mlx5_glue) {
.version = MLX5_GLUE_VERSION,
@ -1319,4 +1346,6 @@ const struct mlx5_glue *mlx5_glue = &(const struct mlx5_glue) {
.devx_free_uar = mlx5_glue_devx_free_uar,
.dv_alloc_var = mlx5_glue_dv_alloc_var,
.dv_free_var = mlx5_glue_dv_free_var,
.dv_alloc_pp = mlx5_glue_dv_alloc_pp,
.dv_free_pp = mlx5_glue_dv_free_pp,
};

5
drivers/common/mlx5/linux/mlx5_glue.h
View File

@ -304,6 +304,11 @@ struct mlx5_glue {
struct mlx5dv_devx_async_event_hdr *event_data,
size_t event_resp_len);
void (*dr_reclaim_domain_memory)(void *domain, uint32_t enable);
struct mlx5dv_pp *(*dv_alloc_pp)(struct ibv_context *context,
size_t pp_context_sz,
const void *pp_context,
uint32_t flags);
void (*dv_free_pp)(struct mlx5dv_pp *pp);
};
extern const struct mlx5_glue *mlx5_glue;

19
drivers/common/mlx5/mlx5_devx_cmds.c
View File

@ -467,6 +467,14 @@ mlx5_devx_cmd_query_hca_attr(void *ctx,
attr->vdpa.queue_counters_valid = !!(MLX5_GET64(cmd_hca_cap, hcattr,
general_obj_types) &
MLX5_GENERAL_OBJ_TYPES_CAP_VIRTIO_Q_COUNTERS);
attr->wqe_index_ignore = MLX5_GET(cmd_hca_cap, hcattr,
wqe_index_ignore_cap);
attr->cross_channel = MLX5_GET(cmd_hca_cap, hcattr, cd);
attr->non_wire_sq = MLX5_GET(cmd_hca_cap, hcattr, non_wire_sq);
attr->log_max_static_sq_wq = MLX5_GET(cmd_hca_cap, hcattr,
log_max_static_sq_wq);
attr->dev_freq_khz = MLX5_GET(cmd_hca_cap, hcattr,
device_frequency_khz);
attr->regex = MLX5_GET(cmd_hca_cap, hcattr, regexp);
attr->regexp_num_of_engines = MLX5_GET(cmd_hca_cap, hcattr,
regexp_num_of_engines);
@ -490,9 +498,13 @@ mlx5_devx_cmd_query_hca_attr(void *ctx,
attr->qos.log_max_flow_meter =
MLX5_GET(qos_cap, hcattr, log_max_flow_meter);
attr->qos.flow_meter_reg_c_ids =
MLX5_GET(qos_cap, hcattr, flow_meter_reg_id);
MLX5_GET(qos_cap, hcattr, flow_meter_reg_id);
attr->qos.flow_meter_reg_share =
MLX5_GET(qos_cap, hcattr, flow_meter_reg_share);
MLX5_GET(qos_cap, hcattr, flow_meter_reg_share);
attr->qos.packet_pacing =
MLX5_GET(qos_cap, hcattr, packet_pacing);
attr->qos.wqe_rate_pp =
MLX5_GET(qos_cap, hcattr, wqe_rate_pp);
}
if (attr->vdpa.valid)
mlx5_devx_cmd_query_hca_vdpa_attr(ctx, &attr->vdpa);
@ -974,6 +986,8 @@ mlx5_devx_cmd_create_sq(void *ctx,
MLX5_SET(sqc, sq_ctx, reg_umr, sq_attr->reg_umr);
MLX5_SET(sqc, sq_ctx, allow_swp, sq_attr->allow_swp);
MLX5_SET(sqc, sq_ctx, hairpin, sq_attr->hairpin);
MLX5_SET(sqc, sq_ctx, non_wire, sq_attr->non_wire);
MLX5_SET(sqc, sq_ctx, static_sq_wq, sq_attr->static_sq_wq);
MLX5_SET(sqc, sq_ctx, user_index, sq_attr->user_index);
MLX5_SET(sqc, sq_ctx, cqn, sq_attr->cqn);
MLX5_SET(sqc, sq_ctx, packet_pacing_rate_limit_index,
@ -1188,6 +1202,7 @@ mlx5_devx_cmd_create_cq(void *ctx, struct mlx5_devx_cq_attr *attr)
} else {
MLX5_SET64(cqc, cqctx, dbr_addr, attr->db_addr);
}
MLX5_SET(cqc, cqctx, cqe_sz, attr->cqe_size);
MLX5_SET(cqc, cqctx, cc, attr->use_first_only);
MLX5_SET(cqc, cqctx, oi, attr->overrun_ignore);
MLX5_SET(cqc, cqctx, log_cq_size, attr->log_cq_size);

10
drivers/common/mlx5/mlx5_devx_cmds.h
View File

@ -29,6 +29,8 @@ struct mlx5_devx_mkey_attr {
struct mlx5_hca_qos_attr {
uint32_t sup:1; /* Whether QOS is supported. */
uint32_t srtcm_sup:1; /* Whether srTCM mode is supported. */
uint32_t packet_pacing:1; /* Packet pacing is supported. */
uint32_t wqe_rate_pp:1; /* Packet pacing WQE rate mode. */
uint32_t flow_meter_reg_share:1;
/* Whether reg_c share is supported. */
uint8_t log_max_flow_meter;
@ -90,6 +92,11 @@ struct mlx5_hca_attr {
uint32_t vhca_id:16;
uint32_t relaxed_ordering_write:1;
uint32_t relaxed_ordering_read:1;
uint32_t wqe_index_ignore:1;
uint32_t cross_channel:1;
uint32_t non_wire_sq:1; /* SQ with non-wire ops is supported. */
uint32_t log_max_static_sq_wq:5; /* Static WQE size SQ. */
uint32_t dev_freq_khz; /* Timestamp counter frequency, kHz. */
uint32_t regex:1;
uint32_t regexp_num_of_engines;
struct mlx5_hca_qos_attr qos;
@ -209,6 +216,8 @@ struct mlx5_devx_create_sq_attr {
uint32_t reg_umr:1;
uint32_t allow_swp:1;
uint32_t hairpin:1;
uint32_t non_wire:1;
uint32_t static_sq_wq:1;
uint32_t user_index:24;
uint32_t cqn:24;
uint32_t packet_pacing_rate_limit_index:16;
@ -232,6 +241,7 @@ struct mlx5_devx_cq_attr {
uint32_t db_umem_valid:1;
uint32_t use_first_only:1;
uint32_t overrun_ignore:1;
uint32_t cqe_size:3;
uint32_t log_cq_size:5;
uint32_t log_page_size:5;
uint32_t uar_page_id;

69
drivers/common/mlx5/mlx5_prm.h
View File

@ -41,6 +41,10 @@
/* Invalidate a CQE. */
#define MLX5_CQE_INVALIDATE (MLX5_CQE_INVALID << 4)
/* Hardware index widths. */
#define MLX5_CQ_INDEX_WIDTH 24
#define MLX5_WQ_INDEX_WIDTH 16
/* WQE Segment sizes in bytes. */
#define MLX5_WSEG_SIZE 16u
#define MLX5_WQE_CSEG_SIZE sizeof(struct mlx5_wqe_cseg)
@ -126,7 +130,17 @@
MLX5_ESEG_MIN_INLINE_SIZE)
/* Missed in mlv5dv.h, should define here. */
#ifndef HAVE_MLX5_OPCODE_ENHANCED_MPSW
#define MLX5_OPCODE_ENHANCED_MPSW 0x29u
#endif
#ifndef HAVE_MLX5_OPCODE_SEND_EN
#define MLX5_OPCODE_SEND_EN 0x17u
#endif
#ifndef HAVE_MLX5_OPCODE_WAIT
#define MLX5_OPCODE_WAIT 0x0fu
#endif
/* CQE value to inform that VLAN is stripped. */
#define MLX5_CQE_VLAN_STRIPPED (1u << 0)
@ -255,6 +269,9 @@
/* The alignment needed for WQ buffer. */
#define MLX5_WQE_BUF_ALIGNMENT sysconf(_SC_PAGESIZE)
/* The alignment needed for CQ buffer. */
#define MLX5_CQE_BUF_ALIGNMENT sysconf(_SC_PAGESIZE)
/* Completion mode. */
enum mlx5_completion_mode {
MLX5_COMP_ONLY_ERR = 0x0,
@ -314,6 +331,13 @@ struct mlx5_wqe_eseg {
};
} __rte_packed;
struct mlx5_wqe_qseg {
uint32_t reserved0;
uint32_t reserved1;
uint32_t max_index;
uint32_t qpn_cqn;
} __rte_packed;
/* The title WQEBB, header of WQE. */
struct mlx5_wqe {
union {
@ -373,6 +397,14 @@ struct mlx5_cqe {
uint8_t op_own;
};
struct mlx5_cqe_ts {
uint64_t timestamp;
uint32_t sop_drop_qpn;
uint16_t wqe_counter;
uint8_t rsvd5;
uint8_t op_own;
};
/* MMO metadata segment */
#define MLX5_OPCODE_MMO 0x2f
@ -1042,7 +1074,9 @@ struct mlx5_ifc_cmd_hca_cap_bits {
u8 reserved_at_40[0x40];
u8 log_max_srq_sz[0x8];
u8 log_max_qp_sz[0x8];
u8 reserved_at_90[0xb];
u8 reserved_at_90[0x9];
u8 wqe_index_ignore_cap[0x1];
u8 dynamic_qp_allocation[0x1];
u8 log_max_qp[0x5];
u8 regexp[0x1];
u8 reserved_at_a1[0x3];
@ -1073,9 +1107,12 @@ struct mlx5_ifc_cmd_hca_cap_bits {
u8 umr_extended_translation_offset[0x1];
u8 null_mkey[0x1];
u8 log_max_klm_list_size[0x6];
u8 reserved_at_120[0xa];
u8 non_wire_sq[0x1];
u8 reserved_at_121[0x9];
u8 log_max_ra_req_dc[0x6];
u8 reserved_at_130[0xa];
u8 reserved_at_130[0x3];
u8 log_max_static_sq_wq[0x5];
u8 reserved_at_138[0x2];
u8 log_max_ra_res_dc[0x6];
u8 reserved_at_140[0xa];
u8 log_max_ra_req_qp[0x6];
@ -1326,7 +1363,8 @@ struct mlx5_ifc_qos_cap_bits {
u8 reserved_at_8[0x8];
u8 log_max_flow_meter[0x8];
u8 flow_meter_reg_id[0x8];
u8 reserved_at_25[0x8];
u8 wqe_rate_pp[0x1];
u8 reserved_at_25[0x7];
u8 flow_meter_reg_share[0x1];
u8 reserved_at_2e[0x17];
u8 packet_pacing_max_rate[0x20];
@ -1890,7 +1928,9 @@ struct mlx5_ifc_sqc_bits {
u8 reg_umr[0x1];
u8 allow_swp[0x1];
u8 hairpin[0x1];
u8 reserved_at_f[0x11];
u8 non_wire[0x1];
u8 static_sq_wq[0x1];
u8 reserved_at_11[0xf];
u8 reserved_at_20[0x8];
u8 user_index[0x18];
u8 reserved_at_40[0x8];
@ -1990,6 +2030,11 @@ struct mlx5_ifc_flow_meter_parameters_bits {
u8 reserved_at_8[0x60]; // 14h-1Ch
};
enum {
MLX5_CQE_SIZE_64B = 0x0,
MLX5_CQE_SIZE_128B = 0x1,
};
struct mlx5_ifc_cqc_bits {
u8 status[0x4];
u8 as_notify[0x1];
@ -2541,6 +2586,20 @@ struct mlx5_ifc_query_qp_in_bits {
u8 reserved_at_60[0x20];
};
enum {
MLX5_DATA_RATE = 0x0,
MLX5_WQE_RATE = 0x1,
};
struct mlx5_ifc_set_pp_rate_limit_context_bits {
u8 rate_limit[0x20];
u8 burst_upper_bound[0x20];
u8 reserved_at_40[0xC];
u8 rate_mode[0x4];
u8 typical_packet_size[0x10];
u8 reserved_at_60[0x120];
};
struct regexp_params_field_select_bits {
u8 reserved_at_0[0x1e];
u8 stop_engine[0x1];