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net/mlx5: HWS, added API and enabled HWS support

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Enabling HWS support in the mlx5 driver:
 - added HWS API header
 - added HWS files in the mlx5 driver makefile
 - added kconfig flag that enables HWS compilation

Reviewed-by: Erez Shitrit <erezsh@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Yevgeny Kliteynik 2024-06-20 02:46:40 +03:00 committed by Saeed Mahameed
parent 2ca62599aa
commit 510f9f61a1
6 changed files with 994 additions and 4 deletions
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3
Documentation/networking/device_drivers/ethernet/mellanox/mlx5/kconfig.rst
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@ -130,6 +130,9 @@ Enabling the driver and kconfig options
| Build support for software-managed steering in the NIC.
**CONFIG_MLX5_HW_STEERING=(y/n)**
| Build support for hardware-managed steering in the NIC.
**CONFIG_MLX5_TC_CT=(y/n)**

10
drivers/net/ethernet/mellanox/mlx5/core/Kconfig
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@ -172,6 +172,16 @@ config MLX5_SW_STEERING
help
Build support for software-managed steering in the NIC.
config MLX5_HW_STEERING
bool "Mellanox Technologies hardware-managed steering"
depends on MLX5_CORE_EN && MLX5_ESWITCH
default y
help
Build support for Hardware-Managed Flow Steering (HMFS) in the NIC.
HMFS is a new approach to managing steering rules where STEs are
written to ICM by HW (as opposed to SW in software-managed steering),
which allows higher rate of rule insertion.
config MLX5_SF
bool "Mellanox Technologies subfunction device support using auxiliary device"
depends on MLX5_CORE && MLX5_CORE_EN

21
drivers/net/ethernet/mellanox/mlx5/core/Makefile
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@ -119,6 +119,27 @@ mlx5_core-$(CONFIG_MLX5_SW_STEERING) += steering/dr_domain.o steering/dr_table.o
steering/dr_action.o steering/fs_dr.o \
steering/dr_definer.o steering/dr_ptrn.o \
steering/dr_arg.o steering/dr_dbg.o lib/smfs.o
#
# HW Steering
#
mlx5_core-$(CONFIG_MLX5_HW_STEERING) += steering/hws/mlx5hws_cmd.o \
steering/hws/mlx5hws_context.o \
steering/hws/mlx5hws_pat_arg.o \
steering/hws/mlx5hws_buddy.o \
steering/hws/mlx5hws_pool.o \
steering/hws/mlx5hws_table.o \
steering/hws/mlx5hws_action.o \
steering/hws/mlx5hws_rule.o \
steering/hws/mlx5hws_matcher.o \
steering/hws/mlx5hws_send.o \
steering/hws/mlx5hws_definer.o \
steering/hws/mlx5hws_bwc.o \
steering/hws/mlx5hws_debug.o \
steering/hws/mlx5hws_vport.o \
steering/hws/mlx5hws_bwc_complex.o
#
# SF device
#

2
drivers/net/ethernet/mellanox/mlx5/core/steering/hws/Makefile Normal file
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@ -0,0 +1,2 @@
# SPDX-License-Identifier: GPL-2.0-only
subdir-ccflags-y += -I$(src)/..

954
drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws.h Normal file
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@ -0,0 +1,954 @@
/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
/* Copyright (c) 2024 NVIDIA Corporation & Affiliates */
#ifndef MLX5HWS_H_
#define MLX5HWS_H_
struct mlx5hws_context;
struct mlx5hws_table;
struct mlx5hws_matcher;
struct mlx5hws_rule;
enum mlx5hws_table_type {
MLX5HWS_TABLE_TYPE_FDB,
MLX5HWS_TABLE_TYPE_MAX,
};
enum mlx5hws_matcher_resource_mode {
/* Allocate resources based on number of rules with minimal failure probability */
MLX5HWS_MATCHER_RESOURCE_MODE_RULE,
/* Allocate fixed size hash table based on given column and rows */
MLX5HWS_MATCHER_RESOURCE_MODE_HTABLE,
};
enum mlx5hws_action_type {
MLX5HWS_ACTION_TYP_LAST,
MLX5HWS_ACTION_TYP_REFORMAT_TNL_L2_TO_L2,
MLX5HWS_ACTION_TYP_REFORMAT_L2_TO_TNL_L2,
MLX5HWS_ACTION_TYP_REFORMAT_TNL_L3_TO_L2,
MLX5HWS_ACTION_TYP_REFORMAT_L2_TO_TNL_L3,
MLX5HWS_ACTION_TYP_DROP,
MLX5HWS_ACTION_TYP_MISS,
MLX5HWS_ACTION_TYP_TBL,
MLX5HWS_ACTION_TYP_CTR,
MLX5HWS_ACTION_TYP_TAG,
MLX5HWS_ACTION_TYP_MODIFY_HDR,
MLX5HWS_ACTION_TYP_VPORT,
MLX5HWS_ACTION_TYP_POP_VLAN,
MLX5HWS_ACTION_TYP_PUSH_VLAN,
MLX5HWS_ACTION_TYP_ASO_METER,
MLX5HWS_ACTION_TYP_INSERT_HEADER,
MLX5HWS_ACTION_TYP_REMOVE_HEADER,
MLX5HWS_ACTION_TYP_RANGE,
MLX5HWS_ACTION_TYP_SAMPLER,
MLX5HWS_ACTION_TYP_DEST_ARRAY,
MLX5HWS_ACTION_TYP_MAX,
};
enum mlx5hws_action_flags {
MLX5HWS_ACTION_FLAG_HWS_FDB = 1 << 0,
/* Shared action can be used over a few threads, since the
* data is written only once at the creation of the action.
*/
MLX5HWS_ACTION_FLAG_SHARED = 1 << 1,
};
enum mlx5hws_action_aso_meter_color {
MLX5HWS_ACTION_ASO_METER_COLOR_RED = 0x0,
MLX5HWS_ACTION_ASO_METER_COLOR_YELLOW = 0x1,
MLX5HWS_ACTION_ASO_METER_COLOR_GREEN = 0x2,
MLX5HWS_ACTION_ASO_METER_COLOR_UNDEFINED = 0x3,
};
enum mlx5hws_send_queue_actions {
/* Start executing all pending queued rules */
MLX5HWS_SEND_QUEUE_ACTION_DRAIN_ASYNC = 1 << 0,
/* Start executing all pending queued rules wait till completion */
MLX5HWS_SEND_QUEUE_ACTION_DRAIN_SYNC = 1 << 1,
};
struct mlx5hws_context_attr {
u16 queues;
u16 queue_size;
bool bwc; /* add support for backward compatible API*/
};
struct mlx5hws_table_attr {
enum mlx5hws_table_type type;
u32 level;
};
enum mlx5hws_matcher_flow_src {
MLX5HWS_MATCHER_FLOW_SRC_ANY = 0x0,
MLX5HWS_MATCHER_FLOW_SRC_WIRE = 0x1,
MLX5HWS_MATCHER_FLOW_SRC_VPORT = 0x2,
};
enum mlx5hws_matcher_insert_mode {
MLX5HWS_MATCHER_INSERT_BY_HASH = 0x0,
MLX5HWS_MATCHER_INSERT_BY_INDEX = 0x1,
};
enum mlx5hws_matcher_distribute_mode {
MLX5HWS_MATCHER_DISTRIBUTE_BY_HASH = 0x0,
MLX5HWS_MATCHER_DISTRIBUTE_BY_LINEAR = 0x1,
};
struct mlx5hws_matcher_attr {
/* Processing priority inside table */
u32 priority;
/* Provide all rules with unique rule_idx in num_log range to reduce locking */
bool optimize_using_rule_idx;
/* Resource mode and corresponding size */
enum mlx5hws_matcher_resource_mode mode;
/* Optimize insertion in case packet origin is the same for all rules */
enum mlx5hws_matcher_flow_src optimize_flow_src;
/* Define the insertion and distribution modes for this matcher */
enum mlx5hws_matcher_insert_mode insert_mode;
enum mlx5hws_matcher_distribute_mode distribute_mode;
/* Define whether the created matcher supports resizing into a bigger matcher */
bool resizable;
union {
struct {
u8 sz_row_log;
u8 sz_col_log;
} table;
struct {
u8 num_log;
} rule;
};
/* Optional AT attach configuration - Max number of additional AT */
u8 max_num_of_at_attach;
};
struct mlx5hws_rule_attr {
void *user_data;
/* Valid if matcher optimize_using_rule_idx is set or
* if matcher is configured to insert rules by index.
*/
u32 rule_idx;
u32 flow_source;
u16 queue_id;
u32 burst:1;
};
/* In actions that take offset, the offset is unique, pointing to a single
* resource and the user should not reuse the same index because data changing
* is not atomic.
*/
struct mlx5hws_rule_action {
struct mlx5hws_action *action;
union {
struct {
u32 value;
} tag;
struct {
u32 offset;
} counter;
struct {
u32 offset;
u8 *data;
} modify_header;
struct {
u32 offset;
u8 hdr_idx;
u8 *data;
} reformat;
struct {
__be32 vlan_hdr;
} push_vlan;
struct {
u32 offset;
enum mlx5hws_action_aso_meter_color init_color;
} aso_meter;
};
};
struct mlx5hws_action_reformat_header {
size_t sz;
void *data;
};
struct mlx5hws_action_insert_header {
struct mlx5hws_action_reformat_header hdr;
/* PRM start anchor to which header will be inserted */
u8 anchor;
/* Header insertion offset in bytes, from the start
* anchor to the location where new header will be inserted.
*/
u8 offset;
/* Indicates this header insertion adds encapsulation header to the packet,
* requiring device to update offloaded fields (for example IPv4 total length).
*/
bool encap;
};
struct mlx5hws_action_remove_header_attr {
/* PRM start anchor from which header will be removed */
u8 anchor;
/* Header remove offset in bytes, from the start
* anchor to the location where remove header starts.
*/
u8 offset;
/* Indicates the removed header size in bytes */
size_t size;
};
struct mlx5hws_action_mh_pattern {
/* Byte size of modify actions provided by "data" */
size_t sz;
/* PRM format modify actions pattern */
__be64 *data;
};
struct mlx5hws_action_dest_attr {
/* Required destination action to forward the packet */
struct mlx5hws_action *dest;
/* Optional reformat action */
struct mlx5hws_action *reformat;
};
/* Check whether HWS is supported
*
* @param[in] mdev
* The device to check.
* @return true if supported, false otherwise.
*/
static inline bool mlx5hws_is_supported(struct mlx5_core_dev *mdev)
{
u8 ignore_flow_level_rtc_valid;
u8 wqe_based_flow_table_update;
wqe_based_flow_table_update =
MLX5_CAP_GEN(mdev, wqe_based_flow_table_update_cap);
ignore_flow_level_rtc_valid =
MLX5_CAP_FLOWTABLE(mdev,
flow_table_properties_nic_receive.ignore_flow_level_rtc_valid);
return wqe_based_flow_table_update && ignore_flow_level_rtc_valid;
}
/* Open a context used for direct rule insertion using hardware steering.
* Each context can contain multiple tables of different types.
*
* @param[in] mdev
* The device to be used for HWS.
* @param[in] attr
* Attributes used for context open.
* @return pointer to mlx5hws_context on success NULL otherwise.
*/
struct mlx5hws_context *
mlx5hws_context_open(struct mlx5_core_dev *mdev,
struct mlx5hws_context_attr *attr);
/* Close a context used for direct hardware steering.
*
* @param[in] ctx
* mlx5hws context to close.
* @return zero on success non zero otherwise.
*/
int mlx5hws_context_close(struct mlx5hws_context *ctx);
/* Set a peer context, each context can have multiple contexts as peers.
*
* @param[in] ctx
* The context in which the peer_ctx will be peered to it.
* @param[in] peer_ctx
* The peer context.
* @param[in] peer_vhca_id
* The peer context vhca id.
*/
void mlx5hws_context_set_peer(struct mlx5hws_context *ctx,
struct mlx5hws_context *peer_ctx,
u16 peer_vhca_id);
/* Create a new direct rule table. Each table can contain multiple matchers.
*
* @param[in] ctx
* The context in which the new table will be opened.
* @param[in] attr
* Attributes used for table creation.
* @return pointer to mlx5hws_table on success NULL otherwise.
*/
struct mlx5hws_table *
mlx5hws_table_create(struct mlx5hws_context *ctx,
struct mlx5hws_table_attr *attr);
/* Destroy direct rule table.
*
* @param[in] tbl
* Table to destroy.
* @return zero on success non zero otherwise.
*/
int mlx5hws_table_destroy(struct mlx5hws_table *tbl);
/* Get ID of the flow table.
*
* @param[in] tbl
* Table to get ID of.
* @return ID of the table.
*/
u32 mlx5hws_table_get_id(struct mlx5hws_table *tbl);
/* Set default miss table for mlx5hws_table by using another mlx5hws_table
* Traffic which all table matchers miss will be forwarded to miss table.
*
* @param[in] tbl
* Source table
* @param[in] miss_tbl
* Target (miss) table, or NULL to remove current miss table
* @return zero on success non zero otherwise.
*/
int mlx5hws_table_set_default_miss(struct mlx5hws_table *tbl,
struct mlx5hws_table *miss_tbl);
/* Create new match template based on items mask, the match template
* will be used for matcher creation.
*
* @param[in] ctx
* The context in which the new template will be created.
* @param[in] match_param
* Describe the mask based on PRM match parameters
* @param[in] match_param_sz
* Size of match param buffer
* @param[in] match_criteria_enable
* Bitmap for each sub-set in match_criteria buffer
* @return pointer to mlx5hws_match_template on success NULL otherwise
*/
struct mlx5hws_match_template *
mlx5hws_match_template_create(struct mlx5hws_context *ctx,
u32 *match_param,
u32 match_param_sz,
u8 match_criteria_enable);
/* Destroy match template.
*
* @param[in] mt
* Match template to destroy.
* @return zero on success non zero otherwise.
*/
int mlx5hws_match_template_destroy(struct mlx5hws_match_template *mt);
/* Create new action template based on action_type array, the action template
* will be used for matcher creation.
*
* @param[in] action_type
* An array of actions based on the order of actions which will be provided
* with rule_actions to mlx5hws_rule_create. The last action is marked
* using MLX5HWS_ACTION_TYP_LAST.
* @return pointer to mlx5hws_action_template on success NULL otherwise
*/
struct mlx5hws_action_template *
mlx5hws_action_template_create(enum mlx5hws_action_type action_type[]);
/* Destroy action template.
*
* @param[in] at
* Action template to destroy.
* @return zero on success non zero otherwise.
*/
int mlx5hws_action_template_destroy(struct mlx5hws_action_template *at);
/* Create a new direct rule matcher. Each matcher can contain multiple rules.
* Matchers on the table will be processed by priority. Matching fields and
* mask are described by the match template. In some cases multiple match
* templates can be used on the same matcher.
*
* @param[in] table
* The table in which the new matcher will be opened.
* @param[in] mt
* Array of match templates to be used on matcher.
* @param[in] num_of_mt
* Number of match templates in mt array.
* @param[in] at
* Array of action templates to be used on matcher.
* @param[in] num_of_at
* Number of action templates in mt array.
* @param[in] attr
* Attributes used for matcher creation.
* @return pointer to mlx5hws_matcher on success NULL otherwise.
*/
struct mlx5hws_matcher *
mlx5hws_matcher_create(struct mlx5hws_table *table,
struct mlx5hws_match_template *mt[],
u8 num_of_mt,
struct mlx5hws_action_template *at[],
u8 num_of_at,
struct mlx5hws_matcher_attr *attr);
/* Destroy direct rule matcher.
*
* @param[in] matcher
* Matcher to destroy.
* @return zero on success non zero otherwise.
*/
int mlx5hws_matcher_destroy(struct mlx5hws_matcher *matcher);
/* Attach new action template to direct rule matcher.
*
* @param[in] matcher
* Matcher to attach at to.
* @param[in] at
* Action template to be attached to the matcher.
* @return zero on success non zero otherwise.
*/
int mlx5hws_matcher_attach_at(struct mlx5hws_matcher *matcher,
struct mlx5hws_action_template *at);
/* Link two matchers and enable moving rules from src matcher to dst matcher.
* Both matchers must be in the same table type, must be created with 'resizable'
* property, and should have the same characteristics (e.g. same mt, same at).
*
* It is the user's responsibility to make sure that the dst matcher
* was allocated with the appropriate size.
*
* Once the function is completed, the user is:
* - allowed to move rules from src into dst matcher
* - no longer allowed to insert rules to the src matcher
*
* The user is always allowed to insert rules to the dst matcher and
* to delete rules from any matcher.
*
* @param[in] src_matcher
* source matcher for moving rules from
* @param[in] dst_matcher
* destination matcher for moving rules to
* @return zero on successful move, non zero otherwise.
*/
int mlx5hws_matcher_resize_set_target(struct mlx5hws_matcher *src_matcher,
struct mlx5hws_matcher *dst_matcher);
/* Enqueue moving rule operation: moving rule from src matcher to a dst matcher
*
* @param[in] src_matcher
* matcher that the rule belongs to
* @param[in] rule
* the rule to move
* @param[in] attr
* rule attributes
* @return zero on success, non zero otherwise.
*/
int mlx5hws_matcher_resize_rule_move(struct mlx5hws_matcher *src_matcher,
struct mlx5hws_rule *rule,
struct mlx5hws_rule_attr *attr);
/* Enqueue create rule operation.
*
* @param[in] matcher
* The matcher in which the new rule will be created.
* @param[in] mt_idx
* Match template index to create the match with.
* @param[in] match_param
* The match parameter PRM buffer used for the value matching.
* @param[in] rule_actions
* Rule action to be executed on match.
* @param[in] at_idx
* Action template index to apply the actions with.
* @param[in] num_of_actions
* Number of rule actions.
* @param[in] attr
* Rule creation attributes.
* @param[in, out] rule_handle
* A valid rule handle. The handle doesn't require any initialization.
* @return zero on successful enqueue non zero otherwise.
*/
int mlx5hws_rule_create(struct mlx5hws_matcher *matcher,
u8 mt_idx,
u32 *match_param,
u8 at_idx,
struct mlx5hws_rule_action rule_actions[],
struct mlx5hws_rule_attr *attr,
struct mlx5hws_rule *rule_handle);
/* Enqueue destroy rule operation.
*
* @param[in] rule
* The rule destruction to enqueue.
* @param[in] attr
* Rule destruction attributes.
* @return zero on successful enqueue non zero otherwise.
*/
int mlx5hws_rule_destroy(struct mlx5hws_rule *rule,
struct mlx5hws_rule_attr *attr);
/* Enqueue update actions on an existing rule.
*
* @param[in, out] rule_handle
* A valid rule handle to update.
* @param[in] at_idx
* Action template index to update the actions with.
* @param[in] rule_actions
* Rule action to be executed on match.
* @param[in] attr
* Rule update attributes.
* @return zero on successful enqueue non zero otherwise.
*/
int mlx5hws_rule_action_update(struct mlx5hws_rule *rule,
u8 at_idx,
struct mlx5hws_rule_action rule_actions[],
struct mlx5hws_rule_attr *attr);
/* Get action type.
*
* @param[in] action
* The action to get the type of.
* @return action type.
*/
enum mlx5hws_action_type
mlx5hws_action_get_type(struct mlx5hws_action *action);
/* Create direct rule drop action.
*
* @param[in] ctx
* The context in which the new action will be created.
* @param[in] flags
* Action creation flags. (enum mlx5hws_action_flags)
* @return pointer to mlx5hws_action on success NULL otherwise.
*/
struct mlx5hws_action *
mlx5hws_action_create_dest_drop(struct mlx5hws_context *ctx,
u32 flags);
/* Create direct rule default miss action.
* Defaults are RX: Drop TX: Wire.
*
* @param[in] ctx
* The context in which the new action will be created.
* @param[in] flags
* Action creation flags. (enum mlx5hws_action_flags)
* @return pointer to mlx5hws_action on success NULL otherwise.
*/
struct mlx5hws_action *
mlx5hws_action_create_default_miss(struct mlx5hws_context *ctx,
u32 flags);
/* Create direct rule goto table action.
*
* @param[in] ctx
* The context in which the new action will be created.
* @param[in] tbl
* Destination table.
* @param[in] flags
* Action creation flags. (enum mlx5hws_action_flags)
* @return pointer to mlx5hws_action on success NULL otherwise.
*/
struct mlx5hws_action *
mlx5hws_action_create_dest_table(struct mlx5hws_context *ctx,
struct mlx5hws_table *tbl,
u32 flags);
/* Create direct rule goto table number action.
*
* @param[in] ctx
* The context in which the new action will be created.
* @param[in] tbl_num
* Destination table number.
* @param[in] flags
* Action creation flags. (enum mlx5hws_action_flags)
* @return pointer to mlx5hws_action on success NULL otherwise.
*/
struct mlx5hws_action *
mlx5hws_action_create_dest_table_num(struct mlx5hws_context *ctx,
u32 table_num, u32 flags);
/* Create direct rule range match action.
*
* @param[in] ctx
* The context in which the new action will be created.
* @param[in] field
* Field to comapare the value.
* @param[in] hit_ft
* Flow table to go to on hit.
* @param[in] miss_ft
* Flow table to go to on miss.
* @param[in] min
* Minimal value of the field to be considered as hit.
* @param[in] max
* Maximal value of the field to be considered as hit.
* @param[in] flags
* Action creation flags. (enum mlx5hws_action_flags)
* @return pointer to mlx5hws_action on success NULL otherwise.
*/
struct mlx5hws_action *
mlx5hws_action_create_dest_match_range(struct mlx5hws_context *ctx,
u32 field,
struct mlx5_flow_table *hit_ft,
struct mlx5_flow_table *miss_ft,
u32 min, u32 max, u32 flags);
/* Create direct rule flow sampler action.
*
* @param[in] ctx
* The context in which the new action will be created.
* @param[in] sampler_id
* Flow sampler object ID.
* @param[in] flags
* Action creation flags. (enum mlx5hws_action_flags)
* @return pointer to mlx5hws_action on success NULL otherwise.
*/
struct mlx5hws_action *
mlx5hws_action_create_flow_sampler(struct mlx5hws_context *ctx,
u32 sampler_id, u32 flags);
/* Create direct rule goto vport action.
*
* @param[in] ctx
* The context in which the new action will be created.
* @param[in] vport_num
* Destination vport number.
* @param[in] vhca_id_valid
* Tells if the vhca_id parameter is valid.
* @param[in] vhca_id
* VHCA ID of the destination vport.
* @param[in] flags
* Action creation flags. (enum mlx5hws_action_flags)
* @return pointer to mlx5hws_action on success NULL otherwise.
*/
struct mlx5hws_action *
mlx5hws_action_create_dest_vport(struct mlx5hws_context *ctx,
u16 vport_num,
bool vhca_id_valid,
u16 vhca_id,
u32 flags);
/* Create direct rule TAG action.
*
* @param[in] ctx
* The context in which the new action will be created.
* @param[in] flags
* Action creation flags. (enum mlx5hws_action_flags)
* @return pointer to mlx5hws_action on success NULL otherwise.
*/
struct mlx5hws_action *
mlx5hws_action_create_tag(struct mlx5hws_context *ctx,
u32 flags);
/* Create direct rule counter action.
*
* @param[in] ctx
* The context in which the new action will be created.
* @param[in] obj_id
* Direct rule counter object ID.
* @param[in] flags
* Action creation flags. (enum mlx5hws_action_flags)
* @return pointer to mlx5hws_action on success NULL otherwise.
*/
struct mlx5hws_action *
mlx5hws_action_create_counter(struct mlx5hws_context *ctx,
u32 obj_id,
u32 flags);
/* Create direct rule reformat action.
*
* @param[in] ctx
* The context in which the new action will be created.
* @param[in] reformat_type
* Type of reformat prefixed with MLX5HWS_ACTION_TYP_REFORMAT.
* @param[in] num_of_hdrs
* Number of provided headers in "hdrs" array.
* @param[in] hdrs
* Headers array containing header information.
* @param[in] log_bulk_size
* Number of unique values used with this reformat.
* @param[in] flags
* Action creation flags. (enum mlx5hws_action_flags)
* @return pointer to mlx5hws_action on success NULL otherwise.
*/
struct mlx5hws_action *
mlx5hws_action_create_reformat(struct mlx5hws_context *ctx,
enum mlx5hws_action_type reformat_type,
u8 num_of_hdrs,
struct mlx5hws_action_reformat_header *hdrs,
u32 log_bulk_size,
u32 flags);
/* Create direct rule modify header action.
*
* @param[in] ctx
* The context in which the new action will be created.
* @param[in] num_of_patterns
* Number of provided patterns in "patterns" array.
* @param[in] patterns
* Patterns array containing pattern information.
* @param[in] log_bulk_size
* Number of unique values used with this pattern.
* @param[in] flags
* Action creation flags. (enum mlx5hws_action_flags)
* @return pointer to mlx5hws_action on success NULL otherwise.
*/
struct mlx5hws_action *
mlx5hws_action_create_modify_header(struct mlx5hws_context *ctx,
u8 num_of_patterns,
struct mlx5hws_action_mh_pattern *patterns,
u32 log_bulk_size,
u32 flags);
/* Create direct rule ASO flow meter action.
*
* @param[in] ctx
* The context in which the new action will be created.
* @param[in] obj_id
* ASO object ID.
* @param[in] return_reg_c
* Copy the ASO object value into this reg_c, after a packet hits a rule with this ASO object.
* @param[in] flags
* Action creation flags. (enum mlx5hws_action_flags)
* @return pointer to mlx5hws_action on success NULL otherwise.
*/
struct mlx5hws_action *
mlx5hws_action_create_aso_meter(struct mlx5hws_context *ctx,
u32 obj_id,
u8 return_reg_c,
u32 flags);
/* Create direct rule pop vlan action.
* @param[in] ctx
* The context in which the new action will be created.
* @param[in] flags
* Action creation flags. (enum mlx5hws_action_flags)
* @return pointer to mlx5hws_action on success NULL otherwise.
*/
struct mlx5hws_action *
mlx5hws_action_create_pop_vlan(struct mlx5hws_context *ctx, u32 flags);
/* Create direct rule push vlan action.
* @param[in] ctx
* The context in which the new action will be created.
* @param[in] flags
* Action creation flags. (enum mlx5hws_action_flags)
* @return pointer to mlx5hws_action on success NULL otherwise.
*/
struct mlx5hws_action *
mlx5hws_action_create_push_vlan(struct mlx5hws_context *ctx, u32 flags);
/* Create a dest array action, this action can duplicate packets and forward to
* multiple destinations in the destination list.
* @param[in] ctx
* The context in which the new action will be created.
* @param[in] num_dest
* The number of dests attributes.
* @param[in] dests
* The destination array. Each contains a destination action and can have
* additional actions.
* @param[in] ignore_flow_level
* Boolean that says whether to turn on 'ignore_flow_level' for this dest.
* @param[in] flow_source
* Source port of the traffic for this actions.
* @param[in] flags
* Action creation flags. (enum mlx5hws_action_flags)
* @return pointer to mlx5hws_action on success NULL otherwise.
*/
struct mlx5hws_action *
mlx5hws_action_create_dest_array(struct mlx5hws_context *ctx,
size_t num_dest,
struct mlx5hws_action_dest_attr *dests,
bool ignore_flow_level,
u32 flow_source,
u32 flags);
/* Create insert header action.
*
* @param[in] ctx
* The context in which the new action will be created.
* @param[in] num_of_hdrs
* Number of provided headers in "hdrs" array.
* @param[in] hdrs
* Headers array containing header information.
* @param[in] log_bulk_size
* Number of unique values used with this insert header.
* @param[in] flags
* Action creation flags. (enum mlx5hws_action_flags)
* @return pointer to mlx5hws_action on success NULL otherwise.
*/
struct mlx5hws_action *
mlx5hws_action_create_insert_header(struct mlx5hws_context *ctx,
u8 num_of_hdrs,
struct mlx5hws_action_insert_header *hdrs,
u32 log_bulk_size,
u32 flags);
/* Create remove header action.
*
* @param[in] ctx
* The context in which the new action will be created.
* @param[in] attr
* attributes: specifies the remove header type, PRM start anchor and
* the PRM end anchor or the PRM start anchor and remove size in bytes.
* @param[in] flags
* Action creation flags. (enum mlx5hws_action_flags)
* @return pointer to mlx5hws_action on success NULL otherwise.
*/
struct mlx5hws_action *
mlx5hws_action_create_remove_header(struct mlx5hws_context *ctx,
struct mlx5hws_action_remove_header_attr *attr,
u32 flags);
/* Create direct rule LAST action.
*
* @param[in] ctx
* The context in which the new action will be created.
* @param[in] flags
* Action creation flags. (enum mlx5hws_action_flags)
* @return pointer to mlx5hws_action on success NULL otherwise.
*/
struct mlx5hws_action *
mlx5hws_action_create_last(struct mlx5hws_context *ctx, u32 flags);
/* Destroy direct rule action.
*
* @param[in] action
* The action to destroy.
* @return zero on success non zero otherwise.
*/
int mlx5hws_action_destroy(struct mlx5hws_action *action);
enum mlx5hws_flow_op_status {
MLX5HWS_FLOW_OP_SUCCESS,
MLX5HWS_FLOW_OP_ERROR,
};
struct mlx5hws_flow_op_result {
enum mlx5hws_flow_op_status status;
void *user_data;
};
/* Poll queue for rule creation and deletions completions.
*
* @param[in] ctx
* The context to which the queue belong to.
* @param[in] queue_id
* The id of the queue to poll.
* @param[in, out] res
* Completion array.
* @param[in] res_nb
* Maximum number of results to return.
* @return negative number on failure, the number of completions otherwise.
*/
int mlx5hws_send_queue_poll(struct mlx5hws_context *ctx,
u16 queue_id,
struct mlx5hws_flow_op_result res[],
u32 res_nb);
/* Perform an action on the queue
*
* @param[in] ctx
* The context to which the queue belong to.
* @param[in] queue_id
* The id of the queue to perform the action on.
* @param[in] actions
* Actions to perform on the queue. (enum mlx5hws_send_queue_actions)
* @return zero on success non zero otherwise.
*/
int mlx5hws_send_queue_action(struct mlx5hws_context *ctx,
u16 queue_id,
u32 actions);
/* Dump HWS info
*
* @param[in] ctx
* The context which to dump the info from.
* @return zero on success non zero otherwise.
*/
int mlx5hws_debug_dump(struct mlx5hws_context *ctx);
struct mlx5hws_bwc_matcher;
struct mlx5hws_bwc_rule;
struct mlx5hws_match_parameters {
size_t match_sz;
u32 *match_buf; /* Device spec format */
};
/* Create a new BWC direct rule matcher.
* This function does the following:
* - creates match template based on flow items
* - creates an empty action template
* - creates a usual mlx5hws_matcher with these mt and at, setting
* its size to minimal
* Notes:
* - table->ctx must have BWC support
* - complex rules are not supported
*
* @param[in] table
* The table in which the new matcher will be opened
* @param[in] priority
* Priority for this BWC matcher
* @param[in] match_criteria_enable
* Bitmask that defines matching criteria
* @param[in] mask
* Match parameters
* @return pointer to mlx5hws_bwc_matcher on success or NULL otherwise.
*/
struct mlx5hws_bwc_matcher *
mlx5hws_bwc_matcher_create(struct mlx5hws_table *table,
u32 priority,
u8 match_criteria_enable,
struct mlx5hws_match_parameters *mask);
/* Destroy BWC direct rule matcher.
*
* @param[in] bwc_matcher
* Matcher to destroy
* @return zero on success, non zero otherwise
*/
int mlx5hws_bwc_matcher_destroy(struct mlx5hws_bwc_matcher *bwc_matcher);
/* Create a new BWC rule.
* Unlike the usual rule creation function, this one is blocking: when the
* function returns, the rule is written to its place (no need to poll).
* This function does the following:
* - finds matching action template based on the provided rule_actions, or
* creates new action template if matching action template doesn't exist
* - updates corresponding BWC matcher stats
* - if needed, the function performs rehash:
* - creates a new matcher based on mt, at, new_sz
* - moves all the existing matcher rules to the new matcher
* - removes the old matcher
* - inserts new rule
* - polls till completion is received
* Notes:
* - matcher->tbl->ctx must have BWC support
* - separate BWC ctx queues are used
*
* @param[in] bwc_matcher
* The BWC matcher in which the new rule will be created.
* @param[in] params
* Match perameters
* @param[in] flow_source
* Flow source for this rule
* @param[in] rule_actions
* Rule action to be executed on match
* @return valid BWC rule handle on success, NULL otherwise
*/
struct mlx5hws_bwc_rule *
mlx5hws_bwc_rule_create(struct mlx5hws_bwc_matcher *bwc_matcher,
struct mlx5hws_match_parameters *params,
u32 flow_source,
struct mlx5hws_rule_action rule_actions[]);
/* Destroy BWC direct rule.
*
* @param[in] bwc_rule
* Rule to destroy
* @return zero on success, non zero otherwise
*/
int mlx5hws_bwc_rule_destroy(struct mlx5hws_bwc_rule *bwc_rule);
/* Update actions on an existing BWC rule.
*
* @param[in] bwc_rule
* Rule to update
* @param[in] rule_actions
* Rule action to update with
* @return zero on successful update, non zero otherwise.
*/
int mlx5hws_bwc_rule_action_update(struct mlx5hws_bwc_rule *bwc_rule,
struct mlx5hws_rule_action rule_actions[]);
#endif

8
drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_internal.h
View File

@ -5,13 +5,13 @@
#define MLX5HWS_INTERNAL_H_
#include <linux/mlx5/transobj.h>
#include "../dr_types.h"
#include <linux/mlx5/vport.h>
#include "fs_core.h"
#include "wq.h"
#include "lib/mlx5.h"
#include "mlx5hws_prm.h"
#include "mlx5hws.h"
#include "mlx5hws_pool.h"
#include "mlx5hws_vport.h"
#include "mlx5hws_context.h"