cregit-Linux how code gets into the kernel

Release 4.14 drivers/net/ethernet/mellanox/mlx5/core/fs_core.c

/*
 * Copyright (c) 2015, Mellanox Technologies. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include <linux/mutex.h>
#include <linux/mlx5/driver.h>

#include "mlx5_core.h"
#include "fs_core.h"
#include "fs_cmd.h"
#include "diag/fs_tracepoint.h"


#define INIT_TREE_NODE_ARRAY_SIZE(...)	(sizeof((struct init_tree_node[]){__VA_ARGS__}) /\
                                         sizeof(struct init_tree_node))


#define ADD_PRIO(num_prios_val, min_level_val, num_levels_val, caps_val,\
		 ...) {.type = FS_TYPE_PRIO,\
        .min_ft_level = min_level_val,\
        .num_levels = num_levels_val,\
        .num_leaf_prios = num_prios_val,\
        .caps = caps_val,\
        .children = (struct init_tree_node[]) {__VA_ARGS__},\
        .ar_size = INIT_TREE_NODE_ARRAY_SIZE(__VA_ARGS__) \
}


#define ADD_MULTIPLE_PRIO(num_prios_val, num_levels_val, ...)\
	ADD_PRIO(num_prios_val, 0, num_levels_val, {},\
                 __VA_ARGS__)\

#define ADD_NS(...) {.type = FS_TYPE_NAMESPACE,\
        .children = (struct init_tree_node[]) {__VA_ARGS__},\
        .ar_size = INIT_TREE_NODE_ARRAY_SIZE(__VA_ARGS__) \
}


#define INIT_CAPS_ARRAY_SIZE(...) (sizeof((long[]){__VA_ARGS__}) /\
                                   sizeof(long))


#define FS_CAP(cap) (__mlx5_bit_off(flow_table_nic_cap, cap))


#define FS_REQUIRED_CAPS(...) {.arr_sz = INIT_CAPS_ARRAY_SIZE(__VA_ARGS__), \
                               .caps = (long[]) {__VA_ARGS__} }


#define FS_CHAINING_CAPS  FS_REQUIRED_CAPS(FS_CAP(flow_table_properties_nic_receive.flow_modify_en), \
                                           FS_CAP(flow_table_properties_nic_receive.modify_root), \
                                           FS_CAP(flow_table_properties_nic_receive.identified_miss_table_mode), \
                                           FS_CAP(flow_table_properties_nic_receive.flow_table_modify))


#define LEFTOVERS_NUM_LEVELS 1

#define LEFTOVERS_NUM_PRIOS 1


#define BY_PASS_PRIO_NUM_LEVELS 1

#define BY_PASS_MIN_LEVEL (ETHTOOL_MIN_LEVEL + MLX5_BY_PASS_NUM_PRIOS +\
                           LEFTOVERS_NUM_PRIOS)


#define ETHTOOL_PRIO_NUM_LEVELS 1

#define ETHTOOL_NUM_PRIOS 11

#define ETHTOOL_MIN_LEVEL (KERNEL_MIN_LEVEL + ETHTOOL_NUM_PRIOS)
/* Vlan, mac, ttc, inner ttc, aRFS */

#define KERNEL_NIC_PRIO_NUM_LEVELS 5

#define KERNEL_NIC_NUM_PRIOS 1
/* One more level for tc */

#define KERNEL_MIN_LEVEL (KERNEL_NIC_PRIO_NUM_LEVELS + 1)


#define ANCHOR_NUM_LEVELS 1

#define ANCHOR_NUM_PRIOS 1

#define ANCHOR_MIN_LEVEL (BY_PASS_MIN_LEVEL + 1)


#define OFFLOADS_MAX_FT 1

#define OFFLOADS_NUM_PRIOS 1

#define OFFLOADS_MIN_LEVEL (ANCHOR_MIN_LEVEL + 1)


#define LAG_PRIO_NUM_LEVELS 1

#define LAG_NUM_PRIOS 1

#define LAG_MIN_LEVEL (OFFLOADS_MIN_LEVEL + 1)


struct node_caps {
	
size_t	arr_sz;
	
long	*caps;
};


static struct init_tree_node {
	
enum fs_node_type	type;
	
struct init_tree_node *children;
	
int ar_size;
	
struct node_caps caps;
	
int min_ft_level;
	
int num_leaf_prios;
	
int prio;
	
int num_levels;

} root_fs = {
	.type = FS_TYPE_NAMESPACE,
	.ar_size = 7,
	.children = (struct init_tree_node[]) {
		ADD_PRIO(0, BY_PASS_MIN_LEVEL, 0,
			 FS_CHAINING_CAPS,
			 ADD_NS(ADD_MULTIPLE_PRIO(MLX5_BY_PASS_NUM_PRIOS,
						  BY_PASS_PRIO_NUM_LEVELS))),
		ADD_PRIO(0, LAG_MIN_LEVEL, 0,
			 FS_CHAINING_CAPS,
			 ADD_NS(ADD_MULTIPLE_PRIO(LAG_NUM_PRIOS,
						  LAG_PRIO_NUM_LEVELS))),
		ADD_PRIO(0, OFFLOADS_MIN_LEVEL, 0, {},
			 ADD_NS(ADD_MULTIPLE_PRIO(OFFLOADS_NUM_PRIOS, OFFLOADS_MAX_FT))),
		ADD_PRIO(0, ETHTOOL_MIN_LEVEL, 0,
			 FS_CHAINING_CAPS,
			 ADD_NS(ADD_MULTIPLE_PRIO(ETHTOOL_NUM_PRIOS,
						  ETHTOOL_PRIO_NUM_LEVELS))),
		ADD_PRIO(0, KERNEL_MIN_LEVEL, 0, {},
			 ADD_NS(ADD_MULTIPLE_PRIO(1, 1),
				ADD_MULTIPLE_PRIO(KERNEL_NIC_NUM_PRIOS,
						  KERNEL_NIC_PRIO_NUM_LEVELS))),
		ADD_PRIO(0, BY_PASS_MIN_LEVEL, 0,
			 FS_CHAINING_CAPS,
			 ADD_NS(ADD_MULTIPLE_PRIO(LEFTOVERS_NUM_PRIOS, LEFTOVERS_NUM_LEVELS))),
		ADD_PRIO(0, ANCHOR_MIN_LEVEL, 0, {},
			 ADD_NS(ADD_MULTIPLE_PRIO(ANCHOR_NUM_PRIOS, ANCHOR_NUM_LEVELS))),
	}
};


enum fs_i_mutex_lock_class {
	
FS_MUTEX_GRANDPARENT,
	
FS_MUTEX_PARENT,
	
FS_MUTEX_CHILD
};


static const struct rhashtable_params rhash_fte = {
	.key_len = FIELD_SIZEOF(struct fs_fte, val),
	.key_offset = offsetof(struct fs_fte, val),
	.head_offset = offsetof(struct fs_fte, hash),
	.automatic_shrinking = true,
	.min_size = 1,
};


static const struct rhashtable_params rhash_fg = {
	.key_len = FIELD_SIZEOF(struct mlx5_flow_group, mask),
	.key_offset = offsetof(struct mlx5_flow_group, mask),
	.head_offset = offsetof(struct mlx5_flow_group, hash),
	.automatic_shrinking = true,
	.min_size = 1,

};

static void del_rule(struct fs_node *node);
static void del_flow_table(struct fs_node *node);
static void del_flow_group(struct fs_node *node);
static void del_fte(struct fs_node *node);
static bool mlx5_flow_dests_cmp(struct mlx5_flow_destination *d1,
				struct mlx5_flow_destination *d2);
static struct mlx5_flow_rule *
find_flow_rule(struct fs_fte *fte,
	       struct mlx5_flow_destination *dest);


static void tree_init_node(struct fs_node *node, unsigned int refcount, void (*remove_func)(struct fs_node *)) { atomic_set(&node->refcount, refcount); INIT_LIST_HEAD(&node->list); INIT_LIST_HEAD(&node->children); mutex_init(&node->lock); node->remove_func = remove_func; }

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static void tree_add_node(struct fs_node *node, struct fs_node *parent) { if (parent) atomic_inc(&parent->refcount); node->parent = parent; /* Parent is the root */ if (!parent) node->root = node; else node->root = parent->root; }

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static void tree_get_node(struct fs_node *node) { atomic_inc(&node->refcount); }

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static void nested_lock_ref_node(struct fs_node *node, enum fs_i_mutex_lock_class class) { if (node) { mutex_lock_nested(&node->lock, class); atomic_inc(&node->refcount); } }

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static void lock_ref_node(struct fs_node *node) { if (node) { mutex_lock(&node->lock); atomic_inc(&node->refcount); } }

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static void unlock_ref_node(struct fs_node *node) { if (node) { atomic_dec(&node->refcount); mutex_unlock(&node->lock); } }

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static void tree_put_node(struct fs_node *node) { struct fs_node *parent_node = node->parent; lock_ref_node(parent_node); if (atomic_dec_and_test(&node->refcount)) { if (parent_node) list_del_init(&node->list); if (node->remove_func) node->remove_func(node); kfree(node); node = NULL; } unlock_ref_node(parent_node); if (!node && parent_node) tree_put_node(parent_node); }

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static int tree_remove_node(struct fs_node *node) { if (atomic_read(&node->refcount) > 1) { atomic_dec(&node->refcount); return -EEXIST; } tree_put_node(node); return 0; }

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static struct fs_prio *find_prio(struct mlx5_flow_namespace *ns, unsigned int prio) { struct fs_prio *iter_prio; fs_for_each_prio(iter_prio, ns) { if (iter_prio->prio == prio) return iter_prio; } return NULL; }

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static bool check_last_reserved(const u32 *match_criteria) { char *match_criteria_reserved = MLX5_ADDR_OF(fte_match_param, match_criteria, MLX5_FTE_MATCH_PARAM_RESERVED); return !match_criteria_reserved[0] && !memcmp(match_criteria_reserved, match_criteria_reserved + 1, MLX5_FLD_SZ_BYTES(fte_match_param, MLX5_FTE_MATCH_PARAM_RESERVED) - 1); }

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static bool check_valid_mask(u8 match_criteria_enable, const u32 *match_criteria) { if (match_criteria_enable & ~( (1 << MLX5_CREATE_FLOW_GROUP_IN_MATCH_CRITERIA_ENABLE_OUTER_HEADERS) | (1 << MLX5_CREATE_FLOW_GROUP_IN_MATCH_CRITERIA_ENABLE_MISC_PARAMETERS) | (1 << MLX5_CREATE_FLOW_GROUP_IN_MATCH_CRITERIA_ENABLE_INNER_HEADERS))) return false; if (!(match_criteria_enable & 1 << MLX5_CREATE_FLOW_GROUP_IN_MATCH_CRITERIA_ENABLE_OUTER_HEADERS)) { char *fg_type_mask = MLX5_ADDR_OF(fte_match_param, match_criteria, outer_headers); if (fg_type_mask[0] || memcmp(fg_type_mask, fg_type_mask + 1, MLX5_ST_SZ_BYTES(fte_match_set_lyr_2_4) - 1)) return false; } if (!(match_criteria_enable & 1 << MLX5_CREATE_FLOW_GROUP_IN_MATCH_CRITERIA_ENABLE_MISC_PARAMETERS)) { char *fg_type_mask = MLX5_ADDR_OF(fte_match_param, match_criteria, misc_parameters); if (fg_type_mask[0] || memcmp(fg_type_mask, fg_type_mask + 1, MLX5_ST_SZ_BYTES(fte_match_set_misc) - 1)) return false; } if (!(match_criteria_enable & 1 << MLX5_CREATE_FLOW_GROUP_IN_MATCH_CRITERIA_ENABLE_INNER_HEADERS)) { char *fg_type_mask = MLX5_ADDR_OF(fte_match_param, match_criteria, inner_headers); if (fg_type_mask[0] || memcmp(fg_type_mask, fg_type_mask + 1, MLX5_ST_SZ_BYTES(fte_match_set_lyr_2_4) - 1)) return false; } return check_last_reserved(match_criteria); }

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static bool check_valid_spec(const struct mlx5_flow_spec *spec) { int i; if (!check_valid_mask(spec->match_criteria_enable, spec->match_criteria)) { pr_warn("mlx5_core: Match criteria given mismatches match_criteria_enable\n"); return false; } for (i = 0; i < MLX5_ST_SZ_DW_MATCH_PARAM; i++) if (spec->match_value[i] & ~spec->match_criteria[i]) { pr_warn("mlx5_core: match_value differs from match_criteria\n"); return false; } return check_last_reserved(spec->match_value); }

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static struct mlx5_flow_root_namespace *find_root(struct fs_node *node) { struct fs_node *root; struct mlx5_flow_namespace *ns; root = node->root; if (WARN_ON(root->type != FS_TYPE_NAMESPACE)) { pr_warn("mlx5: flow steering node is not in tree or garbaged\n"); return NULL; } ns = container_of(root, struct mlx5_flow_namespace, node); return container_of(ns, struct mlx5_flow_root_namespace, ns); }

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static inline struct mlx5_core_dev *get_dev(struct fs_node *node) { struct mlx5_flow_root_namespace *root = find_root(node); if (root) return root->dev; return NULL; }

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static void del_flow_table(struct fs_node *node) { struct mlx5_flow_table *ft; struct mlx5_core_dev *dev; struct fs_prio *prio; int err; fs_get_obj(ft, node); dev = get_dev(&ft->node); err = mlx5_cmd_destroy_flow_table(dev, ft); if (err) mlx5_core_warn(dev, "flow steering can't destroy ft\n"); ida_destroy(&ft->fte_allocator); rhltable_destroy(&ft->fgs_hash); fs_get_obj(prio, ft->node.parent); prio->num_ft--; }

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static void del_rule(struct fs_node *node) { struct mlx5_flow_rule *rule; struct mlx5_flow_table *ft; struct mlx5_flow_group *fg; struct fs_fte *fte; int modify_mask; struct mlx5_core_dev *dev = get_dev(node); int err; bool update_fte = false; fs_get_obj(rule, node); fs_get_obj(fte, rule->node.parent); fs_get_obj(fg, fte->node.parent); fs_get_obj(ft, fg->node.parent); trace_mlx5_fs_del_rule(rule); list_del(&rule->node.list); if (rule->sw_action == MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO) { mutex_lock(&rule->dest_attr.ft->lock); list_del(&rule->next_ft); mutex_unlock(&rule->dest_attr.ft->lock); } if (rule->dest_attr.type == MLX5_FLOW_DESTINATION_TYPE_COUNTER && --fte->dests_size) { modify_mask = BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_ACTION); fte->action &= ~MLX5_FLOW_CONTEXT_ACTION_COUNT; update_fte = true; goto out; } if ((fte->action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) && --fte->dests_size) { modify_mask = BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_DESTINATION_LIST), update_fte = true; } out: if (update_fte && fte->dests_size) { err = mlx5_cmd_update_fte(dev, ft, fg->id, modify_mask, fte); if (err) mlx5_core_warn(dev, "%s can't del rule fg id=%d fte_index=%d\n", __func__, fg->id, fte->index); } }

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static void destroy_fte(struct fs_fte *fte, struct mlx5_flow_group *fg) { struct mlx5_flow_table *ft; int ret; ret = rhashtable_remove_fast(&fg->ftes_hash, &fte->hash, rhash_fte); WARN_ON(ret); fte->status = 0; fs_get_obj(ft, fg->node.parent); ida_simple_remove(&ft->fte_allocator, fte->index); }

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static void del_fte(struct fs_node *node) { struct mlx5_flow_table *ft; struct mlx5_flow_group *fg; struct mlx5_core_dev *dev; struct fs_fte *fte; int err; fs_get_obj(fte, node); fs_get_obj(fg, fte->node.parent); fs_get_obj(ft, fg->node.parent); trace_mlx5_fs_del_fte(fte); dev = get_dev(&ft->node); err = mlx5_cmd_delete_fte(dev, ft, fte->index); if (err) mlx5_core_warn(dev, "flow steering can't delete fte in index %d of flow group id %d\n", fte->index, fg->id); destroy_fte(fte, fg); }

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static void del_flow_group(struct fs_node *node) { struct mlx5_flow_group *fg; struct mlx5_flow_table *ft; struct mlx5_core_dev *dev; int err; fs_get_obj(fg, node); fs_get_obj(ft, fg->node.parent); dev = get_dev(&ft->node); trace_mlx5_fs_del_fg(fg); if (ft->autogroup.active) ft->autogroup.num_groups--; rhashtable_destroy(&fg->ftes_hash); err = rhltable_remove(&ft->fgs_hash, &fg->hash, rhash_fg); WARN_ON(err); if (mlx5_cmd_destroy_flow_group(dev, ft, fg->id)) mlx5_core_warn(dev, "flow steering can't destroy fg %d of ft %d\n", fg->id, ft->id); }

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static struct fs_fte *alloc_fte(struct mlx5_flow_act *flow_act, u32 *match_value, unsigned int index) { struct fs_fte *fte; fte = kzalloc(sizeof(*fte), GFP_KERNEL); if (!fte) return ERR_PTR(-ENOMEM); memcpy(fte->val, match_value, sizeof(fte->val)); fte->node.type = FS_TYPE_FLOW_ENTRY; fte->flow_tag = flow_act->flow_tag; fte->index = index; fte->action = flow_act->action; fte->encap_id = flow_act->encap_id; fte->modify_id = flow_act->modify_id; return fte; }

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static struct mlx5_flow_group *alloc_flow_group(u32 *create_fg_in) { struct mlx5_flow_group *fg; void *match_criteria = MLX5_ADDR_OF(create_flow_group_in, create_fg_in, match_criteria); u8 match_criteria_enable = MLX5_GET(create_flow_group_in, create_fg_in, match_criteria_enable); int ret; fg = kzalloc(sizeof(*fg), GFP_KERNEL); if (!fg) return ERR_PTR(-ENOMEM); ret = rhashtable_init(&fg->ftes_hash, &rhash_fte); if (ret) { kfree(fg); return ERR_PTR(ret); } fg->mask.match_criteria_enable = match_criteria_enable; memcpy(&fg->mask.match_criteria, match_criteria, sizeof(fg->mask.match_criteria)); fg->node.type = FS_TYPE_FLOW_GROUP; fg->start_index = MLX5_GET(create_flow_group_in, create_fg_in, start_flow_index); fg->max_ftes = MLX5_GET(create_flow_group_in, create_fg_in, end_flow_index) - fg->start_index + 1; return fg; }

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static struct mlx5_flow_table *alloc_flow_table(int level, u16 vport, int max_fte, enum fs_flow_table_type table_type, enum fs_flow_table_op_mod op_mod, u32 flags) { struct mlx5_flow_table *ft; int ret; ft = kzalloc(sizeof(*ft), GFP_KERNEL); if (!ft) return ERR_PTR(-ENOMEM); ret = rhltable_init(&ft->fgs_hash, &rhash_fg); if (ret) { kfree(ft); return ERR_PTR(ret); } ft->level = level; ft->node.type = FS_TYPE_FLOW_TABLE; ft->op_mod = op_mod; ft->type = table_type; ft->vport = vport; ft->max_fte = max_fte; ft->flags = flags; INIT_LIST_HEAD(&ft->fwd_rules); mutex_init(&ft->lock); ida_init(&ft->fte_allocator); return ft; }

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/* If reverse is false, then we search for the first flow table in the * root sub-tree from start(closest from right), else we search for the * last flow table in the root sub-tree till start(closest from left). */
static struct mlx5_flow_table *find_closest_ft_recursive(struct fs_node *root, struct list_head *start, bool reverse) { #define list_advance_entry(pos, reverse) \ ((reverse) ? list_prev_entry(pos, list) : list_next_entry(pos, list)) #define list_for_each_advance_continue(pos, head, reverse) \ for (pos = list_advance_entry(pos, reverse); \ &pos->list != (head); \ pos = list_advance_entry(pos, reverse)) struct fs_node *iter = list_entry(start, struct fs_node, list); struct mlx5_flow_table *ft = NULL; if (!root) return NULL; list_for_each_advance_continue(iter, &root->children, reverse) { if (iter->type == FS_TYPE_FLOW_TABLE) { fs_get_obj(ft, iter); return ft; } ft = find_closest_ft_recursive(iter, &iter->children, reverse); if (ft) return ft; } return ft; }

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/* If reverse if false then return the first flow table in next priority of * prio in the tree, else return the last flow table in the previous priority * of prio in the tree. */
static struct mlx5_flow_table *find_closest_ft(struct fs_prio *prio, bool reverse) { struct mlx5_flow_table *ft = NULL; struct fs_node *curr_node; struct fs_node *parent; parent = prio->node.parent; curr_node = &prio->node; while (!ft && parent) { ft = find_closest_ft_recursive(parent, &curr_node->list, reverse); curr_node = parent; parent = curr_node->parent; } return ft; }

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/* Assuming all the tree is locked by mutex chain lock */
static struct mlx5_flow_table *find_next_chained_ft(struct fs_prio *prio) { return find_closest_ft(prio, false); }

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/* Assuming all the tree is locked by mutex chain lock */
static struct mlx5_flow_table *find_prev_chained_ft(struct fs_prio *prio) { return find_closest_ft(prio, true); }

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Maor Gottlieb21100.00%2100.00%
Total21100.00%2100.00%


static int connect_fts_in_prio(struct mlx5_core_dev *dev, struct fs_prio *prio, struct mlx5_flow_table *ft) { struct mlx5_flow_table *iter; int i = 0; int err; fs_for_each_ft(iter, prio) { i++; err = mlx5_cmd_modify_flow_table(dev, iter, ft); if (err) { mlx5_core_warn(dev, "Failed to modify flow table %d\n", iter->id); /* The driver is out of sync with the FW */ if (i > 1) WARN_ON(true); return err; } } return 0; }

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Maor Gottlieb91100.00%2100.00%
Total91100.00%2100.00%

/* Connect flow tables from previous priority of prio to ft */
static int connect_prev_fts(struct mlx5_core_dev *dev, struct mlx5_flow_table *ft, struct fs_prio *prio) { struct mlx5_flow_table *prev_ft; prev_ft = find_prev_chained_ft(prio); if (prev_ft) { struct fs_prio *prev_prio; fs_get_obj(prev_prio, prev_ft->node.parent); return connect_fts_in_prio(dev, prev_prio, ft); } return 0; }

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PersonTokensPropCommitsCommitProp
Maor Gottlieb68100.00%2100.00%
Total68100.00%2100.00%


static int update_root_ft_create(struct mlx5_flow_table *ft, struct fs_prio *prio) { struct mlx5_flow_root_namespace *root = find_root(&prio->node); int min_level = INT_MAX; int err; if (root->root_ft) min_level = root->root_ft->level; if (ft->level >= min_level) return 0; err = mlx5_cmd_update_root_ft(root->dev, ft, root->underlay_qpn); if (err) mlx5_core_warn(root->dev, "Update root flow table of id=%u failed\n", ft->id); else root->root_ft = ft; return err; }

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PersonTokensPropCommitsCommitProp
Maor Gottlieb10096.15%266.67%
Yishai Hadas43.85%133.33%
Total104100.00%3100.00%


static int _mlx5_modify_rule_destination(struct mlx5_flow_rule *rule, struct mlx5_flow_destination *dest) { struct mlx5_flow_table *ft; struct mlx5_flow_group *fg; struct fs_fte *fte; int modify_mask = BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_DESTINATION_LIST); int err = 0; fs_get_obj(fte, rule->node.parent); if (!(fte->action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST)) return -EINVAL; lock_ref_node(&fte->node); fs_get_obj(fg, fte->node.parent); fs_get_obj(ft, fg->node.parent); memcpy(&rule->dest_attr, dest, sizeof(*dest)); err = mlx5_cmd_update_fte(get_dev(&ft->node), ft, fg->id, modify_mask, fte); unlock_ref_node(&fte->node); return err; }

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PersonTokensPropCommitsCommitProp
Maor Gottlieb13892.00%360.00%
Amir Vadai106.67%120.00%
Mark Bloch21.33%120.00%
Total150100.00%5100.00%


int mlx5_modify_rule_destination(struct mlx5_flow_handle *handle, struct mlx5_flow_destination *new_dest, struct mlx5_flow_destination *old_dest) { int i; if (!old_dest) { if (handle->num_rules != 1) return -EINVAL; return _mlx5_modify_rule_destination(handle->rule[0], new_dest); } for (i = 0; i < handle->num_rules; i++) { if (mlx5_flow_dests_cmp(new_dest, &handle->rule[i]->dest_attr)) return _mlx5_modify_rule_destination(handle->rule[i], new_dest); } return -EINVAL; }

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PersonTokensPropCommitsCommitProp
Mark Bloch106100.00%1100.00%
Total106100.00%1100.00%

/* Modify/set FWD rules that point on old_next_ft to point on new_next_ft */
static int connect_fwd_rules(struct mlx5_core_dev *dev, struct mlx5_flow_table *new_next_ft, struct mlx5_flow_table *old_next_ft) { struct mlx5_flow_destination dest; struct mlx5_flow_rule *iter; int err = 0; /* new_next_ft and old_next_ft could be NULL only * when we create/destroy the anchor flow table. */ if (!new_next_ft || !old_next_ft) return 0; dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; dest.ft = new_next_ft; mutex_lock(&old_next_ft->lock); list_splice_init(&old_next_ft->fwd_rules, &new_next_ft->fwd_rules); mutex_unlock(&old_next_ft->lock); list_for_each_entry(iter, &new_next_ft->fwd_rules, next_ft) { err = _mlx5_modify_rule_destination(iter, &dest); if (err) pr_err("mlx5_core: failed to modify rule to point on flow table %d\n", new_next_ft->id); } return 0; }

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PersonTokensPropCommitsCommitProp
Maor Gottlieb12399.19%480.00%
Mark Bloch10.81%120.00%
Total124100.00%5100.00%


static int connect_flow_table(struct mlx5_core_dev *dev, struct mlx5_flow_table *ft, struct fs_prio *prio) { struct mlx5_flow_table *next_ft; int err = 0; /* Connect_prev_fts and update_root_ft_create are mutually exclusive */ if (list_empty(&prio->node.children)) { err = connect_prev_fts(dev, ft, prio); if (err) return err; next_ft = find_next_chained_ft(prio); err = connect_fwd_rules(dev, ft, next_ft); if (err) return err; } if (MLX5_CAP_FLOWTABLE(dev, flow_table_properties_nic_receive.modify_root)) err = update_root_ft_create(ft, prio); return err; }

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PersonTokensPropCommitsCommitProp
Maor Gottlieb112100.00%1100.00%
Total112100.00%1100.00%


static void list_add_flow_table(struct mlx5_flow_table *ft, struct fs_prio *prio) { struct list_head *prev = &prio->node.children; struct mlx5_flow_table *iter; fs_for_each_ft(iter, prio) { if (iter->level > ft->level) break; prev = &iter->node.list; } list_add(&ft->node.list, prev); }

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PersonTokensPropCommitsCommitProp
Maor Gottlieb73100.00%1100.00%
Total73100.00%1100.00%


static struct mlx5_flow_table *__mlx5_create_flow_table(struct mlx5_flow_namespace *ns, struct mlx5_flow_table_attr *ft_attr, enum fs_flow_table_op_mod op_mod, u16 vport) { struct mlx5_flow_root_namespace *root = find_root(&ns->node); struct mlx5_flow_table *next_ft = NULL; struct fs_prio *fs_prio = NULL; struct mlx5_flow_table *ft; int log_table_sz; int err; if (!root) { pr_err("mlx5: flow steering failed to find root of namespace\n"); return ERR_PTR(-ENODEV); } mutex_lock(&root->chain_lock); fs_prio = find_prio(ns, ft_attr->prio); if (!fs_prio) { err = -EINVAL; goto unlock_root; } if (ft_attr->level >= fs_prio->num_levels) { err = -ENOSPC; goto unlock_root; } /* The level is related to the * priority level range. */ ft_attr->level += fs_prio->start_level; ft = alloc_flow_table(ft_attr->level, vport, ft_attr->max_fte ? roundup_pow_of_two(ft_attr->max_fte) : 0, root->table_type, op_mod, ft_attr->flags); if (IS_ERR(ft)) { err = PTR_ERR(ft); goto unlock_root; } tree_init_node(&ft->node, 1, del_flow_table); log_table_sz = ft->max_fte ? ilog2(ft->max_fte) : 0; next_ft = find_next_chained_ft(fs_prio); err = mlx5_cmd_create_flow_table(root->dev, ft->vport, ft->op_mod, ft->type, ft->level, log_table_sz, next_ft, &ft->id, ft->flags); if (err) goto free_ft; err = connect_flow_table(root->dev, ft, fs_prio); if (err) goto destroy_ft; lock_ref_node(&fs_prio->node); tree_add_node(&ft->node, &fs_prio->node); list_add_flow_table(ft, fs_prio); fs_prio->num_ft++; unlock_ref_node(&fs_prio->node); mutex_unlock(&root->chain_lock); return ft; destroy_ft: mlx5_cmd_destroy_flow_table(root->dev, ft); free_ft: ida_destroy(&ft->fte_allocator); kfree(ft); unlock_root: mutex_unlock(&root->chain_lock); return ERR_PTR(err); }

Contributors

PersonTokensPropCommitsCommitProp
Maor Gottlieb30377.49%650.00%
Erez Shitrit379.46%18.33%
Aviv Heller205.12%18.33%
Matan Barak153.84%216.67%
Mohamad Haj Yahia102.56%18.33%
Hadar Hen Zion61.53%18.33%
Total391100.00%12100.00%


struct mlx5_flow_table *mlx5_create_flow_table(struct mlx5_flow_namespace *ns, struct mlx5_flow_table_attr *ft_attr) { return __mlx5_create_flow_table(ns, ft_attr, FS_FT_OP_MOD_NORMAL, 0); }

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PersonTokensPropCommitsCommitProp
Mohamad Haj Yahia2172.41%133.33%
Erez Shitrit620.69%133.33%
Aviv Heller26.90%133.33%
Total29100.00%3100.00%


struct mlx5_flow_table *mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns, int prio, int max_fte, u32 level, u16 vport) { struct mlx5_flow_table_attr ft_attr = {}; ft_attr.max_fte = max_fte; ft_attr.level = level; ft_attr.prio = prio; return __mlx5_create_flow_table(ns, &ft_attr, FS_FT_OP_MOD_NORMAL, vport); }

Contributors

PersonTokensPropCommitsCommitProp
Mohamad Haj Yahia3354.10%250.00%
Erez Shitrit2744.26%125.00%
Hadar Hen Zion11.64%125.00%
Total61100.00%4100.00%


struct mlx5_flow_table* mlx5_create_lag_demux_flow_table(struct mlx5_flow_namespace *ns, int prio, u32 level) { struct mlx5_flow_table_attr ft_attr = {}; ft_attr.level = level; ft_attr.prio = prio; return __mlx5_create_flow_table(ns, &ft_attr, FS_FT_OP_MOD_LAG_DEMUX, 0); }

Contributors

PersonTokensPropCommitsCommitProp
Aviv Heller2653.06%133.33%
Erez Shitrit2142.86%133.33%
Hadar Hen Zion24.08%133.33%
Total49100.00%3100.00%

EXPORT_SYMBOL(mlx5_create_lag_demux_flow_table);
struct mlx5_flow_table* mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns, int prio, int num_flow_table_entries, int max_num_groups, u32 level, u32 flags) { struct mlx5_flow_table_attr ft_attr = {}; struct mlx5_flow_table *ft; if (max_num_groups > num_flow_table_entries) return ERR_PTR(-EINVAL); ft_attr.max_fte = num_flow_table_entries; ft_attr.prio = prio; ft_attr.level = level; ft_attr.flags = flags; ft = mlx5_create_flow_table(ns, &ft_attr); if (IS_ERR(ft)) return ft; ft->autogroup.active = true; ft->autogroup.required_groups = max_num_groups; return ft; }

Contributors

PersonTokensPropCommitsCommitProp
Maor Gottlieb7969.30%360.00%
Erez Shitrit3228.07%120.00%
Hadar Hen Zion32.63%120.00%
Total114100.00%5100.00%

EXPORT_SYMBOL(mlx5_create_auto_grouped_flow_table); /* Flow table should be locked */
static struct mlx5_flow_group *create_flow_group_common(struct mlx5_flow_table *ft, u32 *fg_in, struct list_head *prev_fg, bool is_auto_fg) { struct mlx5_flow_group *fg; struct mlx5_core_dev *dev = get_dev(&ft->node); int err; if (!dev) return ERR_PTR(-ENODEV); fg = alloc_flow_group(fg_in); if (IS_ERR(fg)) return fg; err = rhltable_insert(&ft->fgs_hash, &fg->hash, rhash_fg); if (err) goto err_free_fg; err = mlx5_cmd_create_flow_group(dev, ft, fg_in, &fg->id); if (err) goto err_remove_fg; if (ft->autogroup.active) ft->autogroup.num_groups++; /* Add node to tree */ tree_init_node(&fg->node, !is_auto_fg, del_flow_group); tree_add_node(&fg->node, &ft->node); /* Add node to group list */ list_add(&fg->node.list, prev_fg); trace_mlx5_fs_add_fg(fg); return fg; err_remove_fg: WARN_ON(rhltable_remove(&ft->fgs_hash, &fg->hash, rhash_fg)); err_free_fg: rhashtable_destroy(&fg->ftes_hash); kfree(fg); return ERR_PTR(err); }

Contributors

PersonTokensPropCommitsCommitProp
Maor Gottlieb15267.26%342.86%
Matan Barak7332.30%342.86%
Paul Blakey10.44%114.29%
Total226100.00%7100.00%


struct mlx5_flow_group *mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *fg_in) { void *match_criteria = MLX5_ADDR_OF(create_flow_group_in, fg_in, match_criteria); u8 match_criteria_enable = MLX5_GET(create_flow_group_in, fg_in, match_criteria_enable); struct mlx5_flow_group *fg; if (!check_valid_mask(match_criteria_enable, match_criteria)) return ERR_PTR(-EINVAL); if (ft->autogroup.active) return ERR_PTR(-EPERM); lock_ref_node(&ft->node); fg = create_flow_group_common(ft, fg_in, ft->node.children.prev, false); unlock_ref_node(&ft->node); return fg; }

Contributors

PersonTokensPropCommitsCommitProp
Maor Gottlieb7262.07%360.00%
Matan Barak4236.21%120.00%
Paul Blakey21.72%120.00%
Total116100.00%5100.00%


static struct mlx5_flow_rule *alloc_rule(struct mlx5_flow_destination *dest) { struct mlx5_flow_rule *rule; rule = kzalloc(sizeof(*rule), GFP_KERNEL); if (!rule) return NULL; INIT_LIST_HEAD(&rule->next_ft); rule->node.type = FS_TYPE_FLOW_DEST; if (dest) memcpy(&rule->dest_attr, dest, sizeof(*dest)); return rule; }

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PersonTokensPropCommitsCommitProp
Maor Gottlieb7494.87%375.00%
Amir Vadai45.13%125.00%
Total78100.00%4100.00%


static struct mlx5_flow_handle *alloc_handle(int num_rules) { struct mlx5_flow_handle *handle; handle = kzalloc(sizeof(*handle) + sizeof(handle->rule[0]) * num_rules, GFP_KERNEL); if (!handle) return NULL; handle->num_rules = num_rules; return handle; }

Contributors

PersonTokensPropCommitsCommitProp
Mark Bloch3763.79%125.00%
Maor Gottlieb2136.21%375.00%
Total58100.00%4100.00%


static void destroy_flow_handle(struct fs_fte *fte, struct mlx5_flow_handle *handle, struct mlx5_flow_destination *dest, int i) { for (; --i >= 0;) { if (atomic_dec_and_test(&handle->rule[i]->node.refcount)) { fte->dests_size--; list_del(&handle->rule[i]->node.list); kfree(handle->rule[i]); } } kfree(handle); }

Contributors

PersonTokensPropCommitsCommitProp
Mark Bloch5966.29%228.57%
Maor Gottlieb2932.58%457.14%
Amir Vadai11.12%114.29%
Total89100.00%7100.00%


static struct mlx5_flow_handle * create_flow_handle(struct fs_fte *fte, struct mlx5_flow_destination *dest, int dest_num, int *modify_mask, bool *new_rule) { struct mlx5_flow_handle *handle; struct mlx5_flow_rule *rule = NULL; static int count = BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_FLOW_COUNTERS); static int dst = BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_DESTINATION_LIST); int type; int i = 0; handle = alloc_handle((dest_num) ? dest_num : 1); if (!handle) return ERR_PTR(-ENOMEM); do { if (dest) { rule = find_flow_rule(fte, dest + i); if (rule) { atomic_inc(&rule->node.refcount); goto rule_found; } } *new_rule = true; rule = alloc_rule(dest + i); if (!rule) goto free_rules; /* Add dest to dests list- we need flow tables to be in the * end of the list for forward to next prio rules. */ tree_init_node(&rule->node, 1, del_rule); if (dest && dest[i].type != MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE) list_add(&rule->node.list, &fte->node.children); else list_add_tail(&rule->node.list, &fte->node.children); if (dest) { fte->dests_size++; type = dest[i].type == MLX5_FLOW_DESTINATION_TYPE_COUNTER; *modify_mask |= type ? count : dst; } rule_found: handle->rule[i] = rule; } while (++i < dest_num); return handle; free_rules: destroy_flow_handle(fte, handle, dest, i); return ERR_PTR(-ENOMEM); }

Contributors

PersonTokensPropCommitsCommitProp
Mark Bloch22979.79%120.00%
Maor Gottlieb4616.03%240.00%
Amir Vadai124.18%240.00%
Total287100.00%5100.00%

/* fte should not be deleted while calling this function */
static struct mlx5_flow_handle * add_rule_fte(struct fs_fte *fte, struct mlx5_flow_group *fg, struct mlx5_flow_destination *dest, int dest_num, bool update_action) { struct mlx5_flow_handle *handle; struct mlx5_flow_table *ft; int modify_mask = 0; int err; bool new_rule = false; handle = create_flow_handle(fte, dest, dest_num, &modify_mask, &new_rule); if (IS_ERR(handle) || !new_rule) goto out; if (update_action) modify_mask |= BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_ACTION); fs_get_obj(ft, fg->node.parent); if (!(fte->status & FS_FTE_STATUS_EXISTING)) err = mlx5_cmd_create_fte(get_dev(&ft->node), ft, fg->id, fte); else err = mlx5_cmd_update_fte(get_dev(&ft->node), ft, fg->id, modify_mask, fte); if (err) goto free_handle; fte->status |= FS_FTE_STATUS_EXISTING; out: return handle; free_handle: destroy_flow_handle(fte, handle, dest, handle->num_rules); return ERR_PTR(err); }

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PersonTokensPropCommitsCommitProp
Mark Bloch10854.27%240.00%
Maor Gottlieb7839.20%120.00%
Amir Vadai136.53%240.00%
Total199100.00%5100.00%


static struct fs_fte *create_fte(struct mlx5_flow_group *fg, u32 *match_value, struct mlx5_flow_act *flow_act) { struct mlx5_flow_table *ft; struct fs_fte *fte; int index; int ret; fs_get_obj(ft, fg->node.parent); index = ida_simple_get(&ft->fte_allocator, fg->start_index, fg->start_index + fg->max_ftes, GFP_KERNEL); if (index < 0) return ERR_PTR(index); fte = alloc_fte(flow_act, match_value, index); if (IS_ERR(fte)) { ret = PTR_ERR(fte); goto err_alloc; } ret = rhashtable_insert_fast(&fg->ftes_hash, &fte->hash, rhash_fte); if (ret) goto err_hash; return fte; err_hash: kfree(fte); err_alloc: ida_simple_remove(&ft->fte_allocator, index); return ERR_PTR(ret); }

Contributors

PersonTokensPropCommitsCommitProp
Matan Barak11065.87%240.00%
Maor Gottlieb5231.14%240.00%
Hadar Hen Zion52.99%120.00%
Total167100.00%5100.00%


static struct mlx5_flow_group *create_autogroup(struct mlx5_flow_table *ft, u8 match_criteria_enable, u32 *match_criteria) { int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); struct list_head *prev = &ft->node.children; unsigned int candidate_index = 0; struct mlx5_flow_group *fg; void *match_criteria_addr; unsigned int group_size = 0; u32 *in; if (!ft->autogroup.active) return ERR_PTR(-ENOENT); in = kvzalloc(inlen, GFP_KERNEL); if (!in) return ERR_PTR(-ENOMEM); if (ft->autogroup.num_groups < ft->autogroup.required_groups) /* We save place for flow groups in addition to max types */ group_size = ft->max_fte / (ft->autogroup.required_groups + 1); /* ft->max_fte == ft->autogroup.max_types */ if (group_size == 0) group_size = 1; /* sorted by start_index */ fs_for_each_fg(fg, ft) { if (candidate_index + group_size > fg->start_index) candidate_index = fg->start_index + fg->max_ftes; else break; prev = &fg->node.list; } if (candidate_index + group_size > ft->max_fte) { fg = ERR_PTR(-ENOSPC); goto out; } MLX5_SET(create_flow_group_in, in, match_criteria_enable, match_criteria_enable); MLX5_SET(create_flow_group_in, in, start_flow_index, candidate_index); MLX5_SET(create_flow_group_in, in, end_flow_index, candidate_index + group_size - 1); match_criteria_addr = MLX5_ADDR_OF(create_flow_group_in, in, match_criteria); memcpy(match_criteria_addr, match_criteria, MLX5_ST_SZ_BYTES(fte_match_param)); fg = create_flow_group_common(ft, in, prev, true); out: kvfree(in); return fg; }

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PersonTokensPropCommitsCommitProp
Maor Gottlieb28698.62%360.00%
Leon Romanovsky31.03%120.00%
Paul Blakey10.34%120.00%
Total290100.00%5100.00%


static bool mlx5_flow_dests_cmp(struct mlx5_flow_destination *d1, struct mlx5_flow_destination *d2) { if (d1->type == d2->type) { if ((d1->type == MLX5_FLOW_DESTINATION_TYPE_VPORT && d1->vport_num == d2->vport_num) || (d1->type == MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE && d1->ft == d2->ft) || (d1->type == MLX5_FLOW_DESTINATION_TYPE_TIR && d1->tir_num == d2->tir_num)) return true; } return false; }

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PersonTokensPropCommitsCommitProp
Maor Gottlieb5160.71%133.33%
Matan Barak1922.62%133.33%
Mark Bloch1416.67%133.33%
Total84100.00%3100.00%


static struct mlx5_flow_rule *find_flow_rule(struct fs_fte *fte, struct mlx5_flow_destination *dest) { struct mlx5_flow_rule *rule; list_for_each_entry(rule, &fte->node.children, node.list) { if (mlx5_flow_dests_cmp(&rule->dest_attr, dest)) return rule; } return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Matan Barak51100.00%1100.00%
Total51100.00%1100.00%


static bool check_conflicting_actions(u32 action1, u32 action2) { u32 xored_actions = action1 ^ action2; /* if one rule only wants to count, it's ok */ if (action1 == MLX5_FLOW_CONTEXT_ACTION_COUNT || action2 == MLX5_FLOW_CONTEXT_ACTION_COUNT) return false; if (xored_actions & (MLX5_FLOW_CONTEXT_ACTION_DROP | MLX5_FLOW_CONTEXT_ACTION_ENCAP | MLX5_FLOW_CONTEXT_ACTION_DECAP)) return true; return false; }

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PersonTokensPropCommitsCommitProp
Matan Barak4180.39%133.33%
Maor Gottlieb611.76%133.33%
Mark Bloch47.84%133.33%
Total51100.00%3100.00%


static int check_conflicting_ftes(struct fs_fte *fte, const struct mlx5_flow_act *flow_act) { if (check_conflicting_actions(flow_act->action, fte->action)) { mlx5_core_warn(get_dev(&fte->node), "Found two FTEs with conflicting actions\n"); return -EEXIST; } if (fte->flow_tag != flow_act->flow_tag) { mlx5_core_warn(get_dev(&fte->node), "FTE flow tag %u already exists with different flow tag %u\n", fte->flow_tag, flow_act->flow_tag); return -EEXIST; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Matan Barak6168.54%133.33%
Mark Bloch2123.60%133.33%
Maor Gottlieb77.87%133.33%
Total89100.00%3100.00%


static struct mlx5_flow_handle *add_rule_fg(struct mlx5_flow_group *fg, u32 *match_value, struct mlx5_flow_act *flow_act, struct mlx5_flow_destination *dest, int dest_num, struct fs_fte *fte) { struct mlx5_flow_handle *handle; struct mlx5_flow_table *ft; int i; if (fte) { int old_action; int ret; nested_lock_ref_node(&fte->node, FS_MUTEX_CHILD); ret = check_conflicting_ftes(fte, flow_act); if (ret) { handle = ERR_PTR(ret); goto unlock_fte; } old_action = fte->action; fte->action |= flow_act->action; handle = add_rule_fte(fte, fg, dest, dest_num, old_action != flow_act->action); if (IS_ERR(handle)) { fte->action = old_action; goto unlock_fte; } else { trace_mlx5_fs_set_fte(fte, false); goto add_rules; } } fs_get_obj(ft, fg->node.parent); fte = create_fte(fg, match_value, flow_act); if (IS_ERR(fte)) return (void *)fte; tree_init_node(&fte->node, 0, del_fte); nested_lock_ref_node(&fte->node, FS_MUTEX_CHILD); handle = add_rule_fte(fte, fg, dest, dest_num, false); if (IS_ERR(handle)) { unlock_ref_node(&fte->node); destroy_fte(fte, fg); kfree(fte); return handle; } tree_add_node(&fte->node, &fg->node); /* fte list isn't sorted */ list_add_tail(&fte->node.list, &fg->node.children); trace_mlx5_fs_set_fte(fte, true); add_rules: for (i = 0; i < handle->num_rules; i++) { if (atomic_read(&handle->rule[i]->node.refcount) == 1) { tree_add_node(&handle->rule[i]->node, &fte->node); trace_mlx5_fs_add_rule(handle->rule[i]); } } unlock_fte: unlock_ref_node(&fte->node); return handle; }

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PersonTokensPropCommitsCommitProp
Maor Gottlieb19550.91%642.86%
Mark Bloch10326.89%321.43%
Matan Barak7619.84%428.57%
Hadar Hen Zion92.35%17.14%
Total383100.00%14100.00%


struct mlx5_fc *mlx5_flow_rule_counter(struct mlx5_flow_handle *handle) { struct mlx5_flow_rule *dst; struct fs_fte *fte; fs_get_obj(fte, handle->rule[0]->node.parent); fs_for_each_dst(dst, fte) { if (dst->dest_attr.type == MLX5_FLOW_DESTINATION_TYPE_COUNTER) return dst->dest_attr.counter; } return NULL; }

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Amir Vadai5989.39%150.00%
Mark Bloch710.61%150.00%
Total66100.00%2100.00%


static bool counter_is_valid(struct mlx5_fc *counter, u32 action) { if (!(action & MLX5_FLOW_CONTEXT_ACTION_COUNT)) return !counter; if (!counter) return false; return (action & (MLX5_FLOW_CONTEXT_ACTION_DROP | MLX5_FLOW_CONTEXT_ACTION_FWD_DEST)); }

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Amir Vadai4189.13%150.00%
Mark Bloch510.87%150.00%
Total46100.00%2100.00%


static bool dest_is_valid(struct mlx5_flow_destination *dest, u32 action, struct mlx5_flow_table *ft) { if (dest && (dest->type == MLX5_FLOW_DESTINATION_TYPE_COUNTER)) return counter_is_valid(dest->counter, action); if (!(action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST)) return true; if (!dest || ((dest->type == MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE) && (dest->ft->level <= ft->level))) return false; return true; }

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Maor Gottlieb6474.42%150.00%
Amir Vadai2225.58%150.00%
Total86100.00%2100.00%


static struct mlx5_flow_handle * try_add_to_existing_fg(struct mlx5_flow_table *ft, struct mlx5_flow_spec *spec, struct mlx5_flow_act *flow_act, struct mlx5_flow_destination *dest, int dest_num) { struct mlx5_flow_group *g; struct mlx5_flow_handle *rule = ERR_PTR(-ENOENT); struct rhlist_head *tmp, *list; struct match_list { struct list_head list; struct mlx5_flow_group *g; } match_list, *iter; LIST_HEAD(match_head); rcu_read_lock(); /* Collect all fgs which has a matching match_criteria */ list = rhltable_lookup(&ft->fgs_hash, spec, rhash_fg); rhl_for_each_entry_rcu(g, tmp, list, hash) { struct match_list *curr_match; if (likely(list_empty(&match_head))) { match_list.g = g; list_add_tail(&match_list.list, &match_head); continue; } curr_match = kmalloc(sizeof(*curr_match), GFP_ATOMIC); if (!curr_match) { rcu_read_unlock(); rule = ERR_PTR(-ENOMEM); goto free_list; } curr_match->g = g; list_add_tail(&curr_match->list, &match_head); } rcu_read_unlock(); /* Try to find a fg that already contains a matching fte */ list_for_each_entry(iter, &match_head, list) { struct fs_fte *fte; g = iter->g; nested_lock_ref_node(&g->node, FS_MUTEX_PARENT); fte = rhashtable_lookup_fast(&g->ftes_hash, spec->match_value, rhash_fte); if (fte) { rule = add_rule_fg(g, spec->match_value, flow_act, dest, dest_num, fte); unlock_ref_node(&g->node); goto free_list; } unlock_ref_node(&g->node); } /* No group with matching fte found. Try to add a new fte to any * matching fg. */ list_for_each_entry(iter, &match_head, list) { g = iter->g; nested_lock_ref_node(&g->node, FS_MUTEX_PARENT); rule = add_rule_fg(g, spec->match_value, flow_act, dest, dest_num, NULL); if (!IS_ERR(rule) || PTR_ERR(rule) != -ENOSPC) { unlock_ref_node(&g->node); goto free_list; } unlock_ref_node(&g->node); } free_list: if (!list_empty(&match_head)) { struct match_list *match_tmp; /* The most common case is having one FG. Since we want to * optimize this case, we save the first on the stack. * Therefore, no need to free it. */ list_del(&list_first_entry(&match_head, typeof(*iter), list)->list); list_for_each_entry_safe(iter, match_tmp, &match_head, list) { list_del(&iter->list); kfree(iter); } } return rule; }

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PersonTokensPropCommitsCommitProp
Matan Barak35881.36%220.00%
Maor Gottlieb6915.68%550.00%
Mark Bloch71.59%110.00%
Hadar Hen Zion40.91%110.00%
Amir Vadai20.45%110.00%
Total440100.00%10100.00%


static struct mlx5_flow_handle * _mlx5_add_flow_rules(struct mlx5_flow_table *ft, struct mlx5_flow_spec *spec, struct mlx5_flow_act *flow_act, struct mlx5_flow_destination *dest, int dest_num) { struct mlx5_flow_group *g; struct mlx5_flow_handle *rule; int i; if (!check_valid_spec(spec)) return ERR_PTR(-EINVAL); for (i = 0; i < dest_num; i++) { if (!dest_is_valid(&dest[i], flow_act->action, ft)) return ERR_PTR(-EINVAL); } nested_lock_ref_node(&ft->node, FS_MUTEX_GRANDPARENT); rule = try_add_to_existing_fg(ft, spec, flow_act, dest, dest_num); if (!IS_ERR(rule)) goto unlock; g = create_autogroup(ft, spec->match_criteria_enable, spec->match_criteria); if (IS_ERR(g)) { rule = (void *)g; goto unlock; } rule = add_rule_fg(g, spec->match_value, flow_act, dest, dest_num, NULL); if (IS_ERR(rule)) { /* Remove assumes refcount > 0 and autogroup creates a group * with a refcount = 0. */ unlock_ref_node(&ft->node); tree_get_node(&g->node); tree_remove_node(&g->node); return rule; } unlock: unlock_ref_node(&ft->node); return rule; }

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PersonTokensPropCommitsCommitProp
Matan Barak13656.90%114.29%
Maor Gottlieb10041.84%457.14%
Mark Bloch20.84%114.29%
Hadar Hen Zion10.42%114.29%
Total239100.00%7100.00%


static bool fwd_next_prio_supported(struct mlx5_flow_table *ft) { return ((ft->type == FS_FT_NIC_RX) && (MLX5_CAP_FLOWTABLE(get_dev(&ft->node), nic_rx_multi_path_tirs))); }

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Maor Gottlieb37100.00%1100.00%
Total37100.00%1100.00%


struct mlx5_flow_handle * mlx5_add_flow_rules(struct mlx5_flow_table *ft, struct mlx5_flow_spec *spec, struct mlx5_flow_act *flow_act, struct mlx5_flow_destination *dest, int dest_num) { struct mlx5_flow_root_namespace *root = find_root(&ft->node); struct mlx5_flow_destination gen_dest; struct mlx5_flow_table *next_ft = NULL; struct mlx5_flow_handle *handle = NULL; u32 sw_action = flow_act->action; struct fs_prio *prio; fs_get_obj(prio, ft->node.parent); if (flow_act->action == MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO) { if (!fwd_next_prio_supported(ft)) return ERR_PTR(-EOPNOTSUPP); if (dest) return ERR_PTR(-EINVAL); mutex_lock(&root->chain_lock); next_ft = find_next_chained_ft(prio); if (next_ft) { gen_dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; gen_dest.ft = next_ft; dest = &gen_dest; dest_num = 1; flow_act->action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; } else { mutex_unlock(&root->chain_lock); return ERR_PTR(-EOPNOTSUPP); } } handle = _mlx5_add_flow_rules(ft, spec, flow_act, dest, dest_num); if (sw_action == MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO) { if (!IS_ERR_OR_NULL(handle) && (list_empty(&handle->rule[0]->next_ft))) { mutex_lock(&next_ft->lock); list_add(&handle->rule[0]->next_ft, &next_ft->fwd_rules); mutex_unlock(&next_ft->lock); handle->rule[0]->sw_action = MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO; } mutex_unlock(&root->chain_lock); } return handle; }

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PersonTokensPropCommitsCommitProp
Maor Gottlieb24785.17%250.00%
Mark Bloch3211.03%125.00%
Hadar Hen Zion113.79%125.00%
Total290100.00%4100.00%

EXPORT_SYMBOL(mlx5_add_flow_rules);
void mlx5_del_flow_rules(struct mlx5_flow_handle *handle) { int i; for (i = handle->num_rules - 1; i >= 0; i--) tree_remove_node(&handle->rule[i]->node); kfree(handle); }

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Mark Bloch3368.75%133.33%
Maor Gottlieb1531.25%266.67%
Total48100.00%3100.00%

EXPORT_SYMBOL(mlx5_del_flow_rules); /* Assuming prio->node.children(flow tables) is sorted by level */
static struct mlx5_flow_table *find_next_ft(struct mlx5_flow_table *ft) { struct fs_prio *prio; fs_get_obj(prio, ft->node.parent); if (!list_is_last(&ft->node.list, &prio->node.children)) return list_next_entry(ft, node.list); return find_next_chained_ft(prio); }

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Maor Gottlieb65100.00%2100.00%
Total65100.00%2100.00%


static int update_root_ft_destroy(struct mlx5_flow_table *ft) { struct mlx5_flow_root_namespace *root = find_root(&ft->node); struct mlx5_flow_table *new_root_ft = NULL; if (root->root_ft != ft) return 0; new_root_ft = find_next_ft(ft); if (new_root_ft) { int err = mlx5_cmd_update_root_ft(root->dev, new_root_ft, root->underlay_qpn); if (err) { mlx5_core_warn(root->dev, "Update root flow table of id=%u failed\n", ft->id); return err; } } root->root_ft = new_root_ft; return 0; }

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Maor Gottlieb9896.08%375.00%
Yishai Hadas43.92%125.00%
Total102100.00%4100.00%

/* Connect flow table from previous priority to * the next flow table. */
static int disconnect_flow_table(struct mlx5_flow_table *ft) { struct mlx5_core_dev *dev = get_dev(&ft->node); struct mlx5_flow_table *next_ft; struct fs_prio *prio; int err = 0; err = update_root_ft_destroy(ft); if (err) return err; fs_get_obj(prio, ft->node.parent); if (!(list_first_entry(&prio->node.children, struct mlx5_flow_table, node.list) == ft)) return 0; next_ft = find_next_chained_ft(prio); err = connect_fwd_rules(dev, next_ft, ft); if (err) return err; err = connect_prev_fts(dev, next_ft, prio); if (err) mlx5_core_warn(dev, "Failed to disconnect flow table %d\n", ft->id); return err; }

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Maor Gottlieb145100.00%3100.00%
Total145100.00%3100.00%


int mlx5_destroy_flow_table(struct mlx5_flow_table *ft) { struct mlx5_flow_root_namespace *root = find_root(&ft->node); int err = 0; mutex_lock(&root->chain_lock); err = disconnect_flow_table(ft); if (err) { mutex_unlock(&root->chain_lock); return err; } if (tree_remove_node(&ft->node)) mlx5_core_warn(get_dev(&ft->node), "Flow table %d wasn't destroyed, refcount > 1\n", ft->id); mutex_unlock(&root->chain_lock); return err; }

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PersonTokensPropCommitsCommitProp
Maor Gottlieb98100.00%4100.00%
Total98100.00%4100.00%

EXPORT_SYMBOL(mlx5_destroy_flow_table);
void mlx5_destroy_flow_group(struct mlx5_flow_group *fg) { if (tree_remove_node(&fg->node)) mlx5_core_warn(get_dev(&fg->node), "Flow group %d wasn't destroyed, refcount > 1\n", fg->id); }

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Maor Gottlieb37100.00%3100.00%
Total37100.00%3100.00%


struct mlx5_flow_namespace *mlx5_get_flow_namespace(struct mlx5_core_dev *dev, enum mlx5_flow_namespace_type type) { struct mlx5_flow_steering *steering = dev->priv.steering; struct mlx5_flow_root_namespace *root_ns; int prio; struct fs_prio *fs_prio; struct mlx5_flow_namespace *ns; if (!steering) return NULL; switch (type) { case MLX5_FLOW_NAMESPACE_BYPASS: case MLX5_FLOW_NAMESPACE_LAG: case MLX5_FLOW_NAMESPACE_OFFLOADS: case MLX5_FLOW_NAMESPACE_ETHTOOL: case MLX5_FLOW_NAMESPACE_KERNEL: case MLX5_FLOW_NAMESPACE_LEFTOVERS: case MLX5_FLOW_NAMESPACE_ANCHOR: prio = type; break; case MLX5_FLOW_NAMESPACE_FDB: if (steering->fdb_root_ns) return &steering->fdb_root_ns->ns; else return NULL; case MLX5_FLOW_NAMESPACE_ESW_EGRESS: if (steering->esw_egress_root_ns) return &steering->esw_egress_root_ns->ns; else return NULL; case MLX5_FLOW_NAMESPACE_ESW_INGRESS: if (steering->esw_ingress_root_ns) return &steering->esw_ingress_root_ns->ns; else return NULL; case MLX5_FLOW_NAMESPACE_SNIFFER_RX: if (steering->sniffer_rx_root_ns) return &steering->sniffer_rx_root_ns->ns; else return NULL; case MLX5_FLOW_NAMESPACE_SNIFFER_TX: if (steering->sniffer_tx_root_ns) return &steering->sniffer_tx_root_ns->ns; else return NULL; default: return NULL; } root_ns = steering->root_ns; if (!root_ns) return NULL; fs_prio = find_prio(&root_ns->ns, prio); if (!fs_prio) return NULL; ns = list_first_entry(&fs_prio->node.children, typeof(*ns), node.list); return ns; }

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PersonTokensPropCommitsCommitProp
Maor Gottlieb20982.61%770.00%
Mohamad Haj Yahia3815.02%110.00%
Aviv Heller31.19%110.00%
Or Gerlitz31.19%110.00%
Total253100.00%10100.00%

EXPORT_SYMBOL(mlx5_get_flow_namespace);
static struct fs_prio *fs_create_prio(struct mlx5_flow_namespace *ns, unsigned int prio, int num_levels) { struct fs_prio *fs_prio; fs_prio = kzalloc(sizeof(*fs_prio), GFP_KERNEL); if (!fs_prio) return ERR_PTR(-ENOMEM); fs_prio->node.type = FS_TYPE_PRIO; tree_init_node(&fs_prio->node, 1, NULL); tree_add_node(&fs_prio->node, &ns->node); fs_prio->num_levels = num_levels; fs_prio->prio = prio; list_add_tail(&fs_prio->node.list, &ns->node.children); return fs_prio; }

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Maor Gottlieb115100.00%3100.00%
Total115100.00%3100.00%


static struct mlx5_flow_namespace *fs_init_namespace(struct mlx5_flow_namespace *ns) { ns->node.type = FS_TYPE_NAMESPACE; return ns; }

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Maor Gottlieb24100.00%2100.00%
Total24100.00%2100.00%


static struct mlx5_flow_namespace *fs_create_namespace(struct fs_prio *prio) { struct mlx5_flow_namespace *ns; ns = kzalloc(sizeof(*ns), GFP_KERNEL); if (!ns) return ERR_PTR(-ENOMEM); fs_init_namespace(ns); tree_init_node(&ns->node, 1, NULL); tree_add_node(&ns->node, &prio->node); list_add_tail(&ns->node.list, &prio->node.children); return ns; }

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Maor Gottlieb93100.00%2100.00%
Total93100.00%2100.00%


static int create_leaf_prios(struct mlx5_flow_namespace *ns, int prio, struct init_tree_node *prio_metadata) { struct fs_prio *fs_prio; int i; for (i = 0; i < prio_metadata->num_leaf_prios; i++) { fs_prio = fs_create_prio(ns, prio++, prio_metadata->num_levels); if (IS_ERR(fs_prio)) return PTR_ERR(fs_prio); } return 0; }

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Maor Gottlieb74100.00%4100.00%
Total74100.00%4100.00%

#define FLOW_TABLE_BIT_SZ 1 #define GET_FLOW_TABLE_CAP(dev, offset) \ ((be32_to_cpu(*((__be32 *)(dev->caps.hca_cur[MLX5_CAP_FLOW_TABLE]) + \ offset / 32)) >> \ (32 - FLOW_TABLE_BIT_SZ - (offset & 0x1f))) & FLOW_TABLE_BIT_SZ)
static bool has_required_caps(struct mlx5_core_dev *dev, struct node_caps *caps) { int i; for (i = 0; i < caps->arr_sz; i++) { if (!GET_FLOW_TABLE_CAP(dev, caps->caps[i])) return false; } return true; }

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Maor Gottlieb57100.00%2100.00%
Total57100.00%2100.00%


static int init_root_tree_recursive(struct mlx5_flow_steering *steering, struct init_tree_node *init_node, struct fs_node *fs_parent_node, struct init_tree_node *init_parent_node, int prio) { int max_ft_level = MLX5_CAP_FLOWTABLE(steering->dev, flow_table_properties_nic_receive. max_ft_level); struct mlx5_flow_namespace *fs_ns; struct fs_prio *fs_prio; struct fs_node *base; int i; int err; if (init_node->type == FS_TYPE_PRIO) { if ((init_node->min_ft_level > max_ft_level) || !has_required_caps(steering->dev, &init_node->caps)) return 0; fs_get_obj(fs_ns, fs_parent_node); if (init_node->num_leaf_prios) return create_leaf_prios(fs_ns, prio, init_node); fs_prio = fs_create_prio(fs_ns, prio, init_node->num_levels); if (IS_ERR(fs_prio)) return PTR_ERR(fs_prio); base = &fs_prio->node; } else if (init_node->type == FS_TYPE_NAMESPACE) { fs_get_obj(fs_prio, fs_parent_node); fs_ns = fs_create_namespace(fs_prio); if (IS_ERR(fs_ns)) return PTR_ERR(fs_ns); base = &fs_ns->node; } else { return -EINVAL; } prio = 0; for (i = 0; i < init_node->ar_size; i++) { err = init_root_tree_recursive(steering, &init_node->children[i], base, init_node, prio); if (err) return err; if (init_node->children[i].type == FS_TYPE_PRIO && init_node->children[i].num_leaf_prios) { prio += init_node->children[i].num_leaf_prios; } } return 0; }

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Maor Gottlieb295100.00%7100.00%
Total295100.00%7100.00%


static int init_root_tree(struct mlx5_flow_steering *steering, struct init_tree_node *init_node, struct fs_node *fs_parent_node) { int i; struct mlx5_flow_namespace *fs_ns; int err; fs_get_obj(fs_ns, fs_parent_node); for (i = 0; i < init_node->ar_size; i++) { err = init_root_tree_recursive(steering, &init_node->children[i], &fs_ns->node, init_node, i); if (err) return err; } return 0; }

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Maor Gottlieb90100.00%3100.00%
Total90100.00%3100.00%


static struct mlx5_flow_root_namespace *create_root_ns(struct mlx5_flow_steering *steering, enum fs_flow_table_type table_type) { struct mlx5_flow_root_namespace *root_ns; struct mlx5_flow_namespace *ns; /* Create the root namespace */ root_ns = kvzalloc(sizeof(*root_ns), GFP_KERNEL); if (!root_ns) return NULL; root_ns->dev = steering->dev; root_ns->table_type = table_type; ns = &root_ns->ns; fs_init_namespace(ns); mutex_init(&root_ns->chain_lock); tree_init_node(&ns->node, 1, NULL); tree_add_node(&ns->node, NULL); return root_ns; }

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Maor Gottlieb10597.22%583.33%
Leon Romanovsky32.78%116.67%
Total108100.00%6100.00%

static void set_prio_attrs_in_prio(struct fs_prio *prio, int acc_level);
static int set_prio_attrs_in_ns(struct mlx5_flow_namespace *ns, int acc_level) { struct fs_prio *prio; fs_for_each_prio(prio, ns) { /* This updates prio start_level and num_levels */ set_prio_attrs_in_prio(prio, acc_level); acc_level += prio->num_levels; } return acc_level; }

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Maor Gottlieb44100.00%2100.00%
Total44100.00%2100.00%


static void set_prio_attrs_in_prio(struct fs_prio *prio, int acc_level) { struct mlx5_flow_namespace *ns; int acc_level_ns = acc_level; prio->start_level = acc_level; fs_for_each_ns(ns, prio) /* This updates start_level and num_levels of ns's priority descendants */ acc_level_ns = set_prio_attrs_in_ns(ns, acc_level); if (!prio->num_levels) prio->num_levels = acc_level_ns - prio->start_level; WARN_ON(prio->num_levels < acc_level_ns - prio->start_level); }

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Maor Gottlieb76100.00%2100.00%
Total76100.00%2100.00%


static void set_prio_attrs(struct mlx5_flow_root_namespace *root_ns) { struct mlx5_flow_namespace *ns = &root_ns->ns; struct fs_prio *prio; int start_level = 0; fs_for_each_prio(prio, ns) { set_prio_attrs_in_prio(prio, start_level); start_level += prio->num_levels; } }

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Maor Gottlieb52100.00%2100.00%
Total52100.00%2100.00%

#define ANCHOR_PRIO 0 #define ANCHOR_SIZE 1 #define ANCHOR_LEVEL 0
static int create_anchor_flow_table(struct mlx5_flow_steering *steering) { struct mlx5_flow_namespace *ns = NULL; struct mlx5_flow_table_attr ft_attr = {}; struct mlx5_flow_table *ft; ns = mlx5_get_flow_namespace(steering->dev, MLX5_FLOW_NAMESPACE_ANCHOR); if (WARN_ON(!ns)) return -EINVAL; ft_attr.max_fte = ANCHOR_SIZE; ft_attr.level = ANCHOR_LEVEL; ft_attr.prio = ANCHOR_PRIO; ft = mlx5_create_flow_table(ns, &ft_attr); if (IS_ERR(ft)) { mlx5_core_err(steering->dev, "Failed to create last anchor flow table"); return PTR_ERR(ft); } return 0; }

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Maor Gottlieb7872.90%250.00%
Erez Shitrit2624.30%125.00%
Or Gerlitz32.80%125.00%
Total107100.00%4100.00%


static int init_root_ns(struct mlx5_flow_steering *steering) { steering->root_ns = create_root_ns(steering, FS_FT_NIC_RX); if (!steering->root_ns) goto cleanup; if (init_root_tree(steering, &root_fs, &steering->root_ns->ns.node)) goto cleanup; set_prio_attrs(steering->root_ns); if (create_anchor_flow_table(steering)) goto cleanup; return 0; cleanup: mlx5_cleanup_fs(steering->dev); return -ENOMEM; }

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Maor Gottlieb8698.85%480.00%
Christophe Jaillet11.15%120.00%
Total87100.00%5100.00%


static void clean_tree(struct fs_node *node) { if (node) { struct fs_node *iter; struct fs_node *temp; list_for_each_entry_safe(iter, temp, &node->children, list) clean_tree(iter); tree_remove_node(node); } }

Contributors

PersonTokensPropCommitsCommitProp
Maor Gottlieb47100.00%3100.00%
Total47100.00%3100.00%


static void cleanup_root_ns(struct mlx5_flow_root_namespace *root_ns) { if (!root_ns) return; clean_tree(&root_ns->ns.node); }

Contributors

PersonTokensPropCommitsCommitProp
Maor Gottlieb27100.00%2100.00%
Total27100.00%2100.00%


void mlx5_cleanup_fs(struct mlx5_core_dev *dev) { struct mlx5_flow_steering *steering = dev->priv.steering; cleanup_root_ns(steering->root_ns); cleanup_root_ns(steering->esw_egress_root_ns); cleanup_root_ns(steering->esw_ingress_root_ns); cleanup_root_ns(steering->fdb_root_ns); cleanup_root_ns(steering->sniffer_rx_root_ns); cleanup_root_ns(steering->sniffer_tx_root_ns); mlx5_cleanup_fc_stats(dev); kfree(steering); }

Contributors

PersonTokensPropCommitsCommitProp
Maor Gottlieb6082.19%466.67%
Mohamad Haj Yahia810.96%116.67%
Amir Vadai56.85%116.67%
Total73100.00%6100.00%


static int init_sniffer_tx_root_ns(struct mlx5_flow_steering *steering) { struct fs_prio *prio; steering->sniffer_tx_root_ns = create_root_ns(steering, FS_FT_SNIFFER_TX); if (!steering->sniffer_tx_root_ns) return -ENOMEM; /* Create single prio */ prio = fs_create_prio(&steering->sniffer_tx_root_ns->ns, 0, 1); if (IS_ERR(prio)) { cleanup_root_ns(steering->sniffer_tx_root_ns); return PTR_ERR(prio); } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Maor Gottlieb80100.00%1100.00%
Total80100.00%1100.00%


static int init_sniffer_rx_root_ns(struct mlx5_flow_steering *steering) { struct fs_prio *prio; steering->sniffer_rx_root_ns = create_root_ns(steering, FS_FT_SNIFFER_RX); if (!steering->sniffer_rx_root_ns) return -ENOMEM; /* Create single prio */ prio = fs_create_prio(&steering->sniffer_rx_root_ns->ns, 0, 1); if (IS_ERR(prio)) { cleanup_root_ns(steering->sniffer_rx_root_ns); return PTR_ERR(prio); } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Maor Gottlieb80100.00%1100.00%
Total80100.00%1100.00%


static int init_fdb_root_ns(struct mlx5_flow_steering *steering) { struct fs_prio *prio; steering->fdb_root_ns = create_root_ns(steering, FS_FT_FDB); if (!steering->fdb_root_ns) return -ENOMEM; prio = fs_create_prio(&steering->fdb_root_ns->ns, 0, 1); if (IS_ERR(prio)) goto out_err; prio = fs_create_prio(&steering->fdb_root_ns->ns, 1, 1); if (IS_ERR(prio)) goto out_err; set_prio_attrs(steering->fdb_root_ns); return 0; out_err: cleanup_root_ns(steering->fdb_root_ns); steering->fdb_root_ns = NULL; return PTR_ERR(prio); }

Contributors

PersonTokensPropCommitsCommitProp
Maor Gottlieb8066.12%375.00%
Or Gerlitz4133.88%125.00%
Total121100.00%4100.00%


static int init_ingress_acl_root_ns(struct mlx5_flow_steering *steering) { struct fs_prio *prio; steering->esw_egress_root_ns = create_root_ns(steering, FS_FT_ESW_EGRESS_ACL); if (!steering->esw_egress_root_ns) return -ENOMEM; /* create 1 prio*/ prio = fs_create_prio(&steering->esw_egress_root_ns->ns, 0, MLX5_TOTAL_VPORTS(steering->dev)); return PTR_ERR_OR_ZERO(prio); }

Contributors

PersonTokensPropCommitsCommitProp
Mohamad Haj Yahia5684.85%133.33%
Maor Gottlieb913.64%133.33%
Wei Yongjun11.52%133.33%
Total66100.00%3100.00%


static int init_egress_acl_root_ns(struct mlx5_flow_steering *steering) { struct fs_prio *prio; steering->esw_ingress_root_ns = create_root_ns(steering, FS_FT_ESW_INGRESS_ACL); if (!steering->esw_ingress_root_ns) return -ENOMEM; /* create 1 prio*/ prio = fs_create_prio(&steering->esw_ingress_root_ns->ns, 0, MLX5_TOTAL_VPORTS(steering->dev)); return PTR_ERR_OR_ZERO(prio); }

Contributors

PersonTokensPropCommitsCommitProp
Mohamad Haj Yahia5684.85%133.33%
Maor Gottlieb913.64%133.33%
Wei Yongjun11.52%133.33%
Total66100.00%3100.00%


int mlx5_init_fs(struct mlx5_core_dev *dev) { struct mlx5_flow_steering *steering; int err = 0; err = mlx5_init_fc_stats(dev); if (err) return err; steering = kzalloc(sizeof(*steering), GFP_KERNEL); if (!steering) return -ENOMEM; steering->dev = dev; dev->priv.steering = steering; if ((((MLX5_CAP_GEN(dev, port_type) == MLX5_CAP_PORT_TYPE_ETH) && (MLX5_CAP_GEN(dev, nic_flow_table))) || ((MLX5_CAP_GEN(dev, port_type) == MLX5_CAP_PORT_TYPE_IB) && MLX5_CAP_GEN(dev, ipoib_enhanced_offloads))) && MLX5_CAP_FLOWTABLE_NIC_RX(dev, ft_support)) { err = init_root_ns(steering); if (err) goto err; } if (MLX5_CAP_GEN(dev, eswitch_flow_table)) { if (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, ft_support)) { err = init_fdb_root_ns(steering); if (err) goto err; } if (MLX5_CAP_ESW_EGRESS_ACL(dev, ft_support)) { err = init_egress_acl_root_ns(steering); if (err) goto err; } if (MLX5_CAP_ESW_INGRESS_ACL(dev, ft_support)) { err = init_ingress_acl_root_ns(steering); if (err) goto err; } } if (MLX5_CAP_FLOWTABLE_SNIFFER_RX(dev, ft_support)) { err = init_sniffer_rx_root_ns(steering); if (err) goto err; } if (MLX5_CAP_FLOWTABLE_SNIFFER_TX(dev, ft_support)) { err = init_sniffer_tx_root_ns(steering); if (err) goto err; } return 0; err: mlx5_cleanup_fs(dev); return err; }

Contributors

PersonTokensPropCommitsCommitProp
Maor Gottlieb17761.46%562.50%
Mohamad Haj Yahia5820.14%112.50%
Erez Shitrit3712.85%112.50%
Amir Vadai165.56%112.50%
Total288100.00%8100.00%


int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn) { struct mlx5_flow_root_namespace *root = dev->priv.steering->root_ns; root->underlay_qpn = underlay_qpn; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Yishai Hadas35100.00%1100.00%
Total35100.00%1100.00%

EXPORT_SYMBOL(mlx5_fs_add_rx_underlay_qpn);
int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn) { struct mlx5_flow_root_namespace *root = dev->priv.steering->root_ns; root->underlay_qpn = 0; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Yishai Hadas35100.00%1100.00%
Total35100.00%1100.00%

EXPORT_SYMBOL(mlx5_fs_remove_rx_underlay_qpn);

Overall Contributors

PersonTokensPropCommitsCommitProp
Maor Gottlieb720567.66%3045.45%
Matan Barak150914.17%46.06%
Mark Bloch8648.11%69.09%
Mohamad Haj Yahia2892.71%23.03%
Amir Vadai2031.91%34.55%
Erez Shitrit1861.75%23.03%
Aviv Heller1000.94%23.03%
Or Gerlitz930.87%46.06%
Yishai Hadas880.83%11.52%
Hadar Hen Zion670.63%23.03%
Paul Blakey190.18%34.55%
Saeed Mahameed120.11%11.52%
Leon Romanovsky60.06%11.52%
Gal Pressman30.03%23.03%
Wei Yongjun20.02%11.52%
Linus Torvalds20.02%11.52%
Christophe Jaillet10.01%11.52%
Total10649100.00%66100.00%
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