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numam-dpdk/drivers/net/mlx5/mlx5_flow.c
Michael Baum 377b69fb50 net/mlx5: separate Tx function declarations to another file 
This patch separates Tx function declarations to different header file
in preparation for removing their implementation from the source file
and as an optional preparation for Tx cleanup.

Signed-off-by: Michael Baum <michaelba@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
2021-04-15 08:24:53 +02:00

8231 lines
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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright 2016 6WIND S.A.
* Copyright 2016 Mellanox Technologies, Ltd
*/
#include <stdalign.h>
#include <stdint.h>
#include <string.h>
#include <stdbool.h>
#include <sys/queue.h>
#include <rte_common.h>
#include <rte_ether.h>
#include <ethdev_driver.h>
#include <rte_eal_paging.h>
#include <rte_flow.h>
#include <rte_cycles.h>
#include <rte_flow_driver.h>
#include <rte_malloc.h>
#include <rte_ip.h>
#include <mlx5_glue.h>
#include <mlx5_devx_cmds.h>
#include <mlx5_prm.h>
#include <mlx5_malloc.h>
#include "mlx5_defs.h"
#include "mlx5.h"
#include "mlx5_flow.h"
#include "mlx5_flow_os.h"
#include "mlx5_rx.h"
#include "mlx5_tx.h"
#include "mlx5_common_os.h"
#include "rte_pmd_mlx5.h"
struct tunnel_default_miss_ctx {
uint16_t *queue;
__extension__
union {
struct rte_flow_action_rss action_rss;
struct rte_flow_action_queue miss_queue;
struct rte_flow_action_jump miss_jump;
uint8_t raw[0];
};
};
static int
flow_tunnel_add_default_miss(struct rte_eth_dev *dev,
struct rte_flow *flow,
const struct rte_flow_attr *attr,
const struct rte_flow_action *app_actions,
uint32_t flow_idx,
struct tunnel_default_miss_ctx *ctx,
struct rte_flow_error *error);
static struct mlx5_flow_tunnel *
mlx5_find_tunnel_id(struct rte_eth_dev *dev, uint32_t id);
static void
mlx5_flow_tunnel_free(struct rte_eth_dev *dev, struct mlx5_flow_tunnel *tunnel);
static uint32_t
tunnel_flow_group_to_flow_table(struct rte_eth_dev *dev,
const struct mlx5_flow_tunnel *tunnel,
uint32_t group, uint32_t *table,
struct rte_flow_error *error);
static struct mlx5_flow_workspace *mlx5_flow_push_thread_workspace(void);
static void mlx5_flow_pop_thread_workspace(void);
/** Device flow drivers. */
extern const struct mlx5_flow_driver_ops mlx5_flow_verbs_drv_ops;
const struct mlx5_flow_driver_ops mlx5_flow_null_drv_ops;
const struct mlx5_flow_driver_ops *flow_drv_ops[] = {
[MLX5_FLOW_TYPE_MIN] = &mlx5_flow_null_drv_ops,
#if defined(HAVE_IBV_FLOW_DV_SUPPORT) || !defined(HAVE_INFINIBAND_VERBS_H)
[MLX5_FLOW_TYPE_DV] = &mlx5_flow_dv_drv_ops,
#endif
[MLX5_FLOW_TYPE_VERBS] = &mlx5_flow_verbs_drv_ops,
[MLX5_FLOW_TYPE_MAX] = &mlx5_flow_null_drv_ops
};
/** Helper macro to build input graph for mlx5_flow_expand_rss(). */
#define MLX5_FLOW_EXPAND_RSS_NEXT(...) \
(const int []){ \
__VA_ARGS__, 0, \
}
/** Node object of input graph for mlx5_flow_expand_rss(). */
struct mlx5_flow_expand_node {
const int *const next;
/**<
* List of next node indexes. Index 0 is interpreted as a terminator.
*/
const enum rte_flow_item_type type;
/**< Pattern item type of current node. */
uint64_t rss_types;
/**<
* RSS types bit-field associated with this node
* (see ETH_RSS_* definitions).
*/
};
/** Object returned by mlx5_flow_expand_rss(). */
struct mlx5_flow_expand_rss {
uint32_t entries;
/**< Number of entries @p patterns and @p priorities. */
struct {
struct rte_flow_item *pattern; /**< Expanded pattern array. */
uint32_t priority; /**< Priority offset for each expansion. */
} entry[];
};
static enum rte_flow_item_type
mlx5_flow_expand_rss_item_complete(const struct rte_flow_item *item)
{
enum rte_flow_item_type ret = RTE_FLOW_ITEM_TYPE_VOID;
uint16_t ether_type = 0;
uint16_t ether_type_m;
uint8_t ip_next_proto = 0;
uint8_t ip_next_proto_m;
if (item == NULL || item->spec == NULL)
return ret;
switch (item->type) {
case RTE_FLOW_ITEM_TYPE_ETH:
if (item->mask)
ether_type_m = ((const struct rte_flow_item_eth *)
(item->mask))->type;
else
ether_type_m = rte_flow_item_eth_mask.type;
if (ether_type_m != RTE_BE16(0xFFFF))
break;
ether_type = ((const struct rte_flow_item_eth *)
(item->spec))->type;
if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_IPV4)
ret = RTE_FLOW_ITEM_TYPE_IPV4;
else if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_IPV6)
ret = RTE_FLOW_ITEM_TYPE_IPV6;
else if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_VLAN)
ret = RTE_FLOW_ITEM_TYPE_VLAN;
else
ret = RTE_FLOW_ITEM_TYPE_END;
break;
case RTE_FLOW_ITEM_TYPE_VLAN:
if (item->mask)
ether_type_m = ((const struct rte_flow_item_vlan *)
(item->mask))->inner_type;
else
ether_type_m = rte_flow_item_vlan_mask.inner_type;
if (ether_type_m != RTE_BE16(0xFFFF))
break;
ether_type = ((const struct rte_flow_item_vlan *)
(item->spec))->inner_type;
if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_IPV4)
ret = RTE_FLOW_ITEM_TYPE_IPV4;
else if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_IPV6)
ret = RTE_FLOW_ITEM_TYPE_IPV6;
else if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_VLAN)
ret = RTE_FLOW_ITEM_TYPE_VLAN;
else
ret = RTE_FLOW_ITEM_TYPE_END;
break;
case RTE_FLOW_ITEM_TYPE_IPV4:
if (item->mask)
ip_next_proto_m = ((const struct rte_flow_item_ipv4 *)
(item->mask))->hdr.next_proto_id;
else
ip_next_proto_m =
rte_flow_item_ipv4_mask.hdr.next_proto_id;
if (ip_next_proto_m != 0xFF)
break;
ip_next_proto = ((const struct rte_flow_item_ipv4 *)
(item->spec))->hdr.next_proto_id;
if (ip_next_proto == IPPROTO_UDP)
ret = RTE_FLOW_ITEM_TYPE_UDP;
else if (ip_next_proto == IPPROTO_TCP)
ret = RTE_FLOW_ITEM_TYPE_TCP;
else if (ip_next_proto == IPPROTO_IP)
ret = RTE_FLOW_ITEM_TYPE_IPV4;
else if (ip_next_proto == IPPROTO_IPV6)
ret = RTE_FLOW_ITEM_TYPE_IPV6;
else
ret = RTE_FLOW_ITEM_TYPE_END;
break;
case RTE_FLOW_ITEM_TYPE_IPV6:
if (item->mask)
ip_next_proto_m = ((const struct rte_flow_item_ipv6 *)
(item->mask))->hdr.proto;
else
ip_next_proto_m =
rte_flow_item_ipv6_mask.hdr.proto;
if (ip_next_proto_m != 0xFF)
break;
ip_next_proto = ((const struct rte_flow_item_ipv6 *)
(item->spec))->hdr.proto;
if (ip_next_proto == IPPROTO_UDP)
ret = RTE_FLOW_ITEM_TYPE_UDP;
else if (ip_next_proto == IPPROTO_TCP)
ret = RTE_FLOW_ITEM_TYPE_TCP;
else if (ip_next_proto == IPPROTO_IP)
ret = RTE_FLOW_ITEM_TYPE_IPV4;
else if (ip_next_proto == IPPROTO_IPV6)
ret = RTE_FLOW_ITEM_TYPE_IPV6;
else
ret = RTE_FLOW_ITEM_TYPE_END;
break;
default:
ret = RTE_FLOW_ITEM_TYPE_VOID;
break;
}
return ret;
}
#define MLX5_RSS_EXP_ELT_N 8
/**
* Expand RSS flows into several possible flows according to the RSS hash
* fields requested and the driver capabilities.
*
* @param[out] buf
* Buffer to store the result expansion.
* @param[in] size
* Buffer size in bytes. If 0, @p buf can be NULL.
* @param[in] pattern
* User flow pattern.
* @param[in] types
* RSS types to expand (see ETH_RSS_* definitions).
* @param[in] graph
* Input graph to expand @p pattern according to @p types.
* @param[in] graph_root_index
* Index of root node in @p graph, typically 0.
*
* @return
* A positive value representing the size of @p buf in bytes regardless of
* @p size on success, a negative errno value otherwise and rte_errno is
* set, the following errors are defined:
*
* -E2BIG: graph-depth @p graph is too deep.
*/
static int
mlx5_flow_expand_rss(struct mlx5_flow_expand_rss *buf, size_t size,
const struct rte_flow_item *pattern, uint64_t types,
const struct mlx5_flow_expand_node graph[],
int graph_root_index)
{
const struct rte_flow_item *item;
const struct mlx5_flow_expand_node *node = &graph[graph_root_index];
const int *next_node;
const int *stack[MLX5_RSS_EXP_ELT_N];
int stack_pos = 0;
struct rte_flow_item flow_items[MLX5_RSS_EXP_ELT_N];
unsigned int i;
size_t lsize;
size_t user_pattern_size = 0;
void *addr = NULL;
const struct mlx5_flow_expand_node *next = NULL;
struct rte_flow_item missed_item;
int missed = 0;
int elt = 0;
const struct rte_flow_item *last_item = NULL;
memset(&missed_item, 0, sizeof(missed_item));
lsize = offsetof(struct mlx5_flow_expand_rss, entry) +
MLX5_RSS_EXP_ELT_N * sizeof(buf->entry[0]);
if (lsize <= size) {
buf->entry[0].priority = 0;
buf->entry[0].pattern = (void *)&buf->entry[MLX5_RSS_EXP_ELT_N];
buf->entries = 0;
addr = buf->entry[0].pattern;
}
for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
if (item->type != RTE_FLOW_ITEM_TYPE_VOID)
last_item = item;
for (i = 0; node->next && node->next[i]; ++i) {
next = &graph[node->next[i]];
if (next->type == item->type)
break;
}
if (next)
node = next;
user_pattern_size += sizeof(*item);
}
user_pattern_size += sizeof(*item); /* Handle END item. */
lsize += user_pattern_size;
/* Copy the user pattern in the first entry of the buffer. */
if (lsize <= size) {
rte_memcpy(addr, pattern, user_pattern_size);
addr = (void *)(((uintptr_t)addr) + user_pattern_size);
buf->entries = 1;
}
/* Start expanding. */
memset(flow_items, 0, sizeof(flow_items));
user_pattern_size -= sizeof(*item);
/*
* Check if the last valid item has spec set, need complete pattern,
* and the pattern can be used for expansion.
*/
missed_item.type = mlx5_flow_expand_rss_item_complete(last_item);
if (missed_item.type == RTE_FLOW_ITEM_TYPE_END) {
/* Item type END indicates expansion is not required. */
return lsize;
}
if (missed_item.type != RTE_FLOW_ITEM_TYPE_VOID) {
next = NULL;
missed = 1;
for (i = 0; node->next && node->next[i]; ++i) {
next = &graph[node->next[i]];
if (next->type == missed_item.type) {
flow_items[0].type = missed_item.type;
flow_items[1].type = RTE_FLOW_ITEM_TYPE_END;
break;
}
next = NULL;
}
}
if (next && missed) {
elt = 2; /* missed item + item end. */
node = next;
lsize += elt * sizeof(*item) + user_pattern_size;
if ((node->rss_types & types) && lsize <= size) {
buf->entry[buf->entries].priority = 1;
buf->entry[buf->entries].pattern = addr;
buf->entries++;
rte_memcpy(addr, buf->entry[0].pattern,
user_pattern_size);
addr = (void *)(((uintptr_t)addr) + user_pattern_size);
rte_memcpy(addr, flow_items, elt * sizeof(*item));
addr = (void *)(((uintptr_t)addr) +
elt * sizeof(*item));
}
}
memset(flow_items, 0, sizeof(flow_items));
next_node = node->next;
stack[stack_pos] = next_node;
node = next_node ? &graph[*next_node] : NULL;
while (node) {
flow_items[stack_pos].type = node->type;
if (node->rss_types & types) {
/*
* compute the number of items to copy from the
* expansion and copy it.
* When the stack_pos is 0, there are 1 element in it,
* plus the addition END item.
*/
elt = stack_pos + 2;
flow_items[stack_pos + 1].type = RTE_FLOW_ITEM_TYPE_END;
lsize += elt * sizeof(*item) + user_pattern_size;
if (lsize <= size) {
size_t n = elt * sizeof(*item);
buf->entry[buf->entries].priority =
stack_pos + 1 + missed;
buf->entry[buf->entries].pattern = addr;
buf->entries++;
rte_memcpy(addr, buf->entry[0].pattern,
user_pattern_size);
addr = (void *)(((uintptr_t)addr) +
user_pattern_size);
rte_memcpy(addr, &missed_item,
missed * sizeof(*item));
addr = (void *)(((uintptr_t)addr) +
missed * sizeof(*item));
rte_memcpy(addr, flow_items, n);
addr = (void *)(((uintptr_t)addr) + n);
}
}
/* Go deeper. */
if (node->next) {
next_node = node->next;
if (stack_pos++ == MLX5_RSS_EXP_ELT_N) {
rte_errno = E2BIG;
return -rte_errno;
}
stack[stack_pos] = next_node;
} else if (*(next_node + 1)) {
/* Follow up with the next possibility. */
++next_node;
} else {
/* Move to the next path. */
if (stack_pos)
next_node = stack[--stack_pos];
next_node++;
stack[stack_pos] = next_node;
}
node = *next_node ? &graph[*next_node] : NULL;
};
return lsize;
}
enum mlx5_expansion {
MLX5_EXPANSION_ROOT,
MLX5_EXPANSION_ROOT_OUTER,
MLX5_EXPANSION_ROOT_ETH_VLAN,
MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN,
MLX5_EXPANSION_OUTER_ETH,
MLX5_EXPANSION_OUTER_ETH_VLAN,
MLX5_EXPANSION_OUTER_VLAN,
MLX5_EXPANSION_OUTER_IPV4,
MLX5_EXPANSION_OUTER_IPV4_UDP,
MLX5_EXPANSION_OUTER_IPV4_TCP,
MLX5_EXPANSION_OUTER_IPV6,
MLX5_EXPANSION_OUTER_IPV6_UDP,
MLX5_EXPANSION_OUTER_IPV6_TCP,
MLX5_EXPANSION_VXLAN,
MLX5_EXPANSION_VXLAN_GPE,
MLX5_EXPANSION_GRE,
MLX5_EXPANSION_MPLS,
MLX5_EXPANSION_ETH,
MLX5_EXPANSION_ETH_VLAN,
MLX5_EXPANSION_VLAN,
MLX5_EXPANSION_IPV4,
MLX5_EXPANSION_IPV4_UDP,
MLX5_EXPANSION_IPV4_TCP,
MLX5_EXPANSION_IPV6,
MLX5_EXPANSION_IPV6_UDP,
MLX5_EXPANSION_IPV6_TCP,
};
/** Supported expansion of items. */
static const struct mlx5_flow_expand_node mlx5_support_expansion[] = {
[MLX5_EXPANSION_ROOT] = {
.next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH,
MLX5_EXPANSION_IPV4,
MLX5_EXPANSION_IPV6),
.type = RTE_FLOW_ITEM_TYPE_END,
},
[MLX5_EXPANSION_ROOT_OUTER] = {
.next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_ETH,
MLX5_EXPANSION_OUTER_IPV4,
MLX5_EXPANSION_OUTER_IPV6),
.type = RTE_FLOW_ITEM_TYPE_END,
},
[MLX5_EXPANSION_ROOT_ETH_VLAN] = {
.next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH_VLAN),
.type = RTE_FLOW_ITEM_TYPE_END,
},
[MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN] = {
.next = MLX5_FLOW_EXPAND_RSS_NEXT
(MLX5_EXPANSION_OUTER_ETH_VLAN),
.type = RTE_FLOW_ITEM_TYPE_END,
},
[MLX5_EXPANSION_OUTER_ETH] = {
.next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_IPV4,
MLX5_EXPANSION_OUTER_IPV6,
MLX5_EXPANSION_MPLS),
.type = RTE_FLOW_ITEM_TYPE_ETH,
.rss_types = 0,
},
[MLX5_EXPANSION_OUTER_ETH_VLAN] = {
.next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_VLAN),
.type = RTE_FLOW_ITEM_TYPE_ETH,
.rss_types = 0,
},
[MLX5_EXPANSION_OUTER_VLAN] = {
.next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_IPV4,
MLX5_EXPANSION_OUTER_IPV6),
.type = RTE_FLOW_ITEM_TYPE_VLAN,
},
[MLX5_EXPANSION_OUTER_IPV4] = {
.next = MLX5_FLOW_EXPAND_RSS_NEXT
(MLX5_EXPANSION_OUTER_IPV4_UDP,
MLX5_EXPANSION_OUTER_IPV4_TCP,
MLX5_EXPANSION_GRE,
MLX5_EXPANSION_IPV4,
MLX5_EXPANSION_IPV6),
.type = RTE_FLOW_ITEM_TYPE_IPV4,
.rss_types = ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4 |
ETH_RSS_NONFRAG_IPV4_OTHER,
},
[MLX5_EXPANSION_OUTER_IPV4_UDP] = {
.next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VXLAN,
MLX5_EXPANSION_VXLAN_GPE),
.type = RTE_FLOW_ITEM_TYPE_UDP,
.rss_types = ETH_RSS_NONFRAG_IPV4_UDP,
},
[MLX5_EXPANSION_OUTER_IPV4_TCP] = {
.type = RTE_FLOW_ITEM_TYPE_TCP,
.rss_types = ETH_RSS_NONFRAG_IPV4_TCP,
},
[MLX5_EXPANSION_OUTER_IPV6] = {
.next = MLX5_FLOW_EXPAND_RSS_NEXT
(MLX5_EXPANSION_OUTER_IPV6_UDP,
MLX5_EXPANSION_OUTER_IPV6_TCP,
MLX5_EXPANSION_IPV4,
MLX5_EXPANSION_IPV6,
MLX5_EXPANSION_GRE),
.type = RTE_FLOW_ITEM_TYPE_IPV6,
.rss_types = ETH_RSS_IPV6 | ETH_RSS_FRAG_IPV6 |
ETH_RSS_NONFRAG_IPV6_OTHER,
},
[MLX5_EXPANSION_OUTER_IPV6_UDP] = {
.next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VXLAN,
MLX5_EXPANSION_VXLAN_GPE),
.type = RTE_FLOW_ITEM_TYPE_UDP,
.rss_types = ETH_RSS_NONFRAG_IPV6_UDP,
},
[MLX5_EXPANSION_OUTER_IPV6_TCP] = {
.type = RTE_FLOW_ITEM_TYPE_TCP,
.rss_types = ETH_RSS_NONFRAG_IPV6_TCP,
},
[MLX5_EXPANSION_VXLAN] = {
.next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH,
MLX5_EXPANSION_IPV4,
MLX5_EXPANSION_IPV6),
.type = RTE_FLOW_ITEM_TYPE_VXLAN,
},
[MLX5_EXPANSION_VXLAN_GPE] = {
.next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH,
MLX5_EXPANSION_IPV4,
MLX5_EXPANSION_IPV6),
.type = RTE_FLOW_ITEM_TYPE_VXLAN_GPE,
},
[MLX5_EXPANSION_GRE] = {
.next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
MLX5_EXPANSION_IPV6),
.type = RTE_FLOW_ITEM_TYPE_GRE,
},
[MLX5_EXPANSION_MPLS] = {
.next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
MLX5_EXPANSION_IPV6),
.type = RTE_FLOW_ITEM_TYPE_MPLS,
},
[MLX5_EXPANSION_ETH] = {
.next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
MLX5_EXPANSION_IPV6),
.type = RTE_FLOW_ITEM_TYPE_ETH,
},
[MLX5_EXPANSION_ETH_VLAN] = {
.next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VLAN),
.type = RTE_FLOW_ITEM_TYPE_ETH,
},
[MLX5_EXPANSION_VLAN] = {
.next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
MLX5_EXPANSION_IPV6),
.type = RTE_FLOW_ITEM_TYPE_VLAN,
},
[MLX5_EXPANSION_IPV4] = {
.next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4_UDP,
MLX5_EXPANSION_IPV4_TCP),
.type = RTE_FLOW_ITEM_TYPE_IPV4,
.rss_types = ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4 |
ETH_RSS_NONFRAG_IPV4_OTHER,
},
[MLX5_EXPANSION_IPV4_UDP] = {
.type = RTE_FLOW_ITEM_TYPE_UDP,
.rss_types = ETH_RSS_NONFRAG_IPV4_UDP,
},
[MLX5_EXPANSION_IPV4_TCP] = {
.type = RTE_FLOW_ITEM_TYPE_TCP,
.rss_types = ETH_RSS_NONFRAG_IPV4_TCP,
},
[MLX5_EXPANSION_IPV6] = {
.next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV6_UDP,
MLX5_EXPANSION_IPV6_TCP),
.type = RTE_FLOW_ITEM_TYPE_IPV6,
.rss_types = ETH_RSS_IPV6 | ETH_RSS_FRAG_IPV6 |
ETH_RSS_NONFRAG_IPV6_OTHER,
},
[MLX5_EXPANSION_IPV6_UDP] = {
.type = RTE_FLOW_ITEM_TYPE_UDP,
.rss_types = ETH_RSS_NONFRAG_IPV6_UDP,
},
[MLX5_EXPANSION_IPV6_TCP] = {
.type = RTE_FLOW_ITEM_TYPE_TCP,
.rss_types = ETH_RSS_NONFRAG_IPV6_TCP,
},
};
static struct rte_flow_shared_action *
mlx5_shared_action_create(struct rte_eth_dev *dev,
const struct rte_flow_shared_action_conf *conf,
const struct rte_flow_action *action,
struct rte_flow_error *error);
static int mlx5_shared_action_destroy
(struct rte_eth_dev *dev,
struct rte_flow_shared_action *shared_action,
struct rte_flow_error *error);
static int mlx5_shared_action_update
(struct rte_eth_dev *dev,
struct rte_flow_shared_action *shared_action,
const struct rte_flow_action *action,
struct rte_flow_error *error);
static int mlx5_shared_action_query
(struct rte_eth_dev *dev,
const struct rte_flow_shared_action *action,
void *data,
struct rte_flow_error *error);
static int
mlx5_flow_tunnel_decap_set(struct rte_eth_dev *dev,
struct rte_flow_tunnel *app_tunnel,
struct rte_flow_action **actions,
uint32_t *num_of_actions,
struct rte_flow_error *error);
static int
mlx5_flow_tunnel_match(struct rte_eth_dev *dev,
struct rte_flow_tunnel *app_tunnel,
struct rte_flow_item **items,
uint32_t *num_of_items,
struct rte_flow_error *error);
static int
mlx5_flow_tunnel_item_release(struct rte_eth_dev *dev,
struct rte_flow_item *pmd_items,
uint32_t num_items, struct rte_flow_error *err);
static int
mlx5_flow_tunnel_action_release(struct rte_eth_dev *dev,
struct rte_flow_action *pmd_actions,
uint32_t num_actions,
struct rte_flow_error *err);
static int
mlx5_flow_tunnel_get_restore_info(struct rte_eth_dev *dev,
struct rte_mbuf *m,
struct rte_flow_restore_info *info,
struct rte_flow_error *err);
static const struct rte_flow_ops mlx5_flow_ops = {
.validate = mlx5_flow_validate,
.create = mlx5_flow_create,
.destroy = mlx5_flow_destroy,
.flush = mlx5_flow_flush,
.isolate = mlx5_flow_isolate,
.query = mlx5_flow_query,
.dev_dump = mlx5_flow_dev_dump,
.get_aged_flows = mlx5_flow_get_aged_flows,
.shared_action_create = mlx5_shared_action_create,
.shared_action_destroy = mlx5_shared_action_destroy,
.shared_action_update = mlx5_shared_action_update,
.shared_action_query = mlx5_shared_action_query,
.tunnel_decap_set = mlx5_flow_tunnel_decap_set,
.tunnel_match = mlx5_flow_tunnel_match,
.tunnel_action_decap_release = mlx5_flow_tunnel_action_release,
.tunnel_item_release = mlx5_flow_tunnel_item_release,
.get_restore_info = mlx5_flow_tunnel_get_restore_info,
};
/* Tunnel information. */
struct mlx5_flow_tunnel_info {
uint64_t tunnel; /**< Tunnel bit (see MLX5_FLOW_*). */
uint32_t ptype; /**< Tunnel Ptype (see RTE_PTYPE_*). */
};
static struct mlx5_flow_tunnel_info tunnels_info[] = {
{
.tunnel = MLX5_FLOW_LAYER_VXLAN,
.ptype = RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_L4_UDP,
},
{
.tunnel = MLX5_FLOW_LAYER_GENEVE,
.ptype = RTE_PTYPE_TUNNEL_GENEVE | RTE_PTYPE_L4_UDP,
},
{
.tunnel = MLX5_FLOW_LAYER_VXLAN_GPE,
.ptype = RTE_PTYPE_TUNNEL_VXLAN_GPE | RTE_PTYPE_L4_UDP,
},
{
.tunnel = MLX5_FLOW_LAYER_GRE,
.ptype = RTE_PTYPE_TUNNEL_GRE,
},
{
.tunnel = MLX5_FLOW_LAYER_MPLS | MLX5_FLOW_LAYER_OUTER_L4_UDP,
.ptype = RTE_PTYPE_TUNNEL_MPLS_IN_UDP | RTE_PTYPE_L4_UDP,
},
{
.tunnel = MLX5_FLOW_LAYER_MPLS,
.ptype = RTE_PTYPE_TUNNEL_MPLS_IN_GRE,
},
{
.tunnel = MLX5_FLOW_LAYER_NVGRE,
.ptype = RTE_PTYPE_TUNNEL_NVGRE,
},
{
.tunnel = MLX5_FLOW_LAYER_IPIP,
.ptype = RTE_PTYPE_TUNNEL_IP,
},
{
.tunnel = MLX5_FLOW_LAYER_IPV6_ENCAP,
.ptype = RTE_PTYPE_TUNNEL_IP,
},
{
.tunnel = MLX5_FLOW_LAYER_GTP,
.ptype = RTE_PTYPE_TUNNEL_GTPU,
},
};
/**
* Translate tag ID to register.
*
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in] feature
* The feature that request the register.
* @param[in] id
* The request register ID.
* @param[out] error
* Error description in case of any.
*
* @return
* The request register on success, a negative errno
* value otherwise and rte_errno is set.
*/
int
mlx5_flow_get_reg_id(struct rte_eth_dev *dev,
enum mlx5_feature_name feature,
uint32_t id,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_dev_config *config = &priv->config;
enum modify_reg start_reg;
bool skip_mtr_reg = false;
switch (feature) {
case MLX5_HAIRPIN_RX:
return REG_B;
case MLX5_HAIRPIN_TX:
return REG_A;
case MLX5_METADATA_RX:
switch (config->dv_xmeta_en) {
case MLX5_XMETA_MODE_LEGACY:
return REG_B;
case MLX5_XMETA_MODE_META16:
return REG_C_0;
case MLX5_XMETA_MODE_META32:
return REG_C_1;
}
break;
case MLX5_METADATA_TX:
return REG_A;
case MLX5_METADATA_FDB:
switch (config->dv_xmeta_en) {
case MLX5_XMETA_MODE_LEGACY:
return REG_NON;
case MLX5_XMETA_MODE_META16:
return REG_C_0;
case MLX5_XMETA_MODE_META32:
return REG_C_1;
}
break;
case MLX5_FLOW_MARK:
switch (config->dv_xmeta_en) {
case MLX5_XMETA_MODE_LEGACY:
return REG_NON;
case MLX5_XMETA_MODE_META16:
return REG_C_1;
case MLX5_XMETA_MODE_META32:
return REG_C_0;
}
break;
case MLX5_MTR_SFX:
/*
* If meter color and flow match share one register, flow match
* should use the meter color register for match.
*/
if (priv->mtr_reg_share)
return priv->mtr_color_reg;
else
return priv->mtr_color_reg != REG_C_2 ? REG_C_2 :
REG_C_3;
case MLX5_MTR_COLOR:
case MLX5_ASO_FLOW_HIT: /* Both features use the same REG_C. */
MLX5_ASSERT(priv->mtr_color_reg != REG_NON);
return priv->mtr_color_reg;
case MLX5_COPY_MARK:
/*
* Metadata COPY_MARK register using is in meter suffix sub
* flow while with meter. It's safe to share the same register.
*/
return priv->mtr_color_reg != REG_C_2 ? REG_C_2 : REG_C_3;
case MLX5_APP_TAG:
/*
* If meter is enable, it will engage the register for color
* match and flow match. If meter color match is not using the
* REG_C_2, need to skip the REG_C_x be used by meter color
* match.
* If meter is disable, free to use all available registers.
*/
start_reg = priv->mtr_color_reg != REG_C_2 ? REG_C_2 :
(priv->mtr_reg_share ? REG_C_3 : REG_C_4);
skip_mtr_reg = !!(priv->mtr_en && start_reg == REG_C_2);
if (id > (uint32_t)(REG_C_7 - start_reg))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
NULL, "invalid tag id");
if (config->flow_mreg_c[id + start_reg - REG_C_0] == REG_NON)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM,
NULL, "unsupported tag id");
/*
* This case means meter is using the REG_C_x great than 2.
* Take care not to conflict with meter color REG_C_x.
* If the available index REG_C_y >= REG_C_x, skip the
* color register.
*/
if (skip_mtr_reg && config->flow_mreg_c
[id + start_reg - REG_C_0] >= priv->mtr_color_reg) {
if (id >= (uint32_t)(REG_C_7 - start_reg))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
NULL, "invalid tag id");
if (config->flow_mreg_c
[id + 1 + start_reg - REG_C_0] != REG_NON)
return config->flow_mreg_c
[id + 1 + start_reg - REG_C_0];
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM,
NULL, "unsupported tag id");
}
return config->flow_mreg_c[id + start_reg - REG_C_0];
}
MLX5_ASSERT(false);
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL, "invalid feature name");
}
/**
* Check extensive flow metadata register support.
*
* @param dev
* Pointer to rte_eth_dev structure.
*
* @return
* True if device supports extensive flow metadata register, otherwise false.
*/
bool
mlx5_flow_ext_mreg_supported(struct rte_eth_dev *dev)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_dev_config *config = &priv->config;
/*
* Having available reg_c can be regarded inclusively as supporting
* extensive flow metadata register, which could mean,
* - metadata register copy action by modify header.
* - 16 modify header actions is supported.
* - reg_c's are preserved across different domain (FDB and NIC) on
* packet loopback by flow lookup miss.
*/
return config->flow_mreg_c[2] != REG_NON;
}
/**
* Get the lowest priority.
*
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in] attributes
* Pointer to device flow rule attributes.
*
* @return
* The value of lowest priority of flow.
*/
uint32_t
mlx5_get_lowest_priority(struct rte_eth_dev *dev,
const struct rte_flow_attr *attr)
{
struct mlx5_priv *priv = dev->data->dev_private;
if (!attr->group && !attr->transfer)
return priv->config.flow_prio - 2;
return MLX5_NON_ROOT_FLOW_MAX_PRIO - 1;
}
/**
* Calculate matcher priority of the flow.
*
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in] attr
* Pointer to device flow rule attributes.
* @param[in] subpriority
* The priority based on the items.
* @return
* The matcher priority of the flow.
*/
uint16_t
mlx5_get_matcher_priority(struct rte_eth_dev *dev,
const struct rte_flow_attr *attr,
uint32_t subpriority)
{
uint16_t priority = (uint16_t)attr->priority;
struct mlx5_priv *priv = dev->data->dev_private;
if (!attr->group && !attr->transfer) {
if (attr->priority == MLX5_FLOW_LOWEST_PRIO_INDICATOR)
priority = priv->config.flow_prio - 1;
return mlx5_os_flow_adjust_priority(dev, priority, subpriority);
}
if (attr->priority == MLX5_FLOW_LOWEST_PRIO_INDICATOR)
priority = MLX5_NON_ROOT_FLOW_MAX_PRIO;
return priority * 3 + subpriority;
}
/**
* Verify the @p item specifications (spec, last, mask) are compatible with the
* NIC capabilities.
*
* @param[in] item
* Item specification.
* @param[in] mask
* @p item->mask or flow default bit-masks.
* @param[in] nic_mask
* Bit-masks covering supported fields by the NIC to compare with user mask.
* @param[in] size
* Bit-masks size in bytes.
* @param[in] range_accepted
* True if range of values is accepted for specific fields, false otherwise.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_item_acceptable(const struct rte_flow_item *item,
const uint8_t *mask,
const uint8_t *nic_mask,
unsigned int size,
bool range_accepted,
struct rte_flow_error *error)
{
unsigned int i;
MLX5_ASSERT(nic_mask);
for (i = 0; i < size; ++i)
if ((nic_mask[i] | mask[i]) != nic_mask[i])
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"mask enables non supported"
" bits");
if (!item->spec && (item->mask || item->last))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"mask/last without a spec is not"
" supported");
if (item->spec && item->last && !range_accepted) {
uint8_t spec[size];
uint8_t last[size];
unsigned int i;
int ret;
for (i = 0; i < size; ++i) {
spec[i] = ((const uint8_t *)item->spec)[i] & mask[i];
last[i] = ((const uint8_t *)item->last)[i] & mask[i];
}
ret = memcmp(spec, last, size);
if (ret != 0)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"range is not valid");
}
return 0;
}
/**
* Adjust the hash fields according to the @p flow information.
*
* @param[in] dev_flow.
* Pointer to the mlx5_flow.
* @param[in] tunnel
* 1 when the hash field is for a tunnel item.
* @param[in] layer_types
* ETH_RSS_* types.
* @param[in] hash_fields
* Item hash fields.
*
* @return
* The hash fields that should be used.
*/
uint64_t
mlx5_flow_hashfields_adjust(struct mlx5_flow_rss_desc *rss_desc,
int tunnel __rte_unused, uint64_t layer_types,
uint64_t hash_fields)
{
#ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
int rss_request_inner = rss_desc->level >= 2;
/* Check RSS hash level for tunnel. */
if (tunnel && rss_request_inner)
hash_fields |= IBV_RX_HASH_INNER;
else if (tunnel || rss_request_inner)
return 0;
#endif
/* Check if requested layer matches RSS hash fields. */
if (!(rss_desc->types & layer_types))
return 0;
return hash_fields;
}
/**
* Lookup and set the ptype in the data Rx part. A single Ptype can be used,
* if several tunnel rules are used on this queue, the tunnel ptype will be
* cleared.
*
* @param rxq_ctrl
* Rx queue to update.
*/
static void
flow_rxq_tunnel_ptype_update(struct mlx5_rxq_ctrl *rxq_ctrl)
{
unsigned int i;
uint32_t tunnel_ptype = 0;
/* Look up for the ptype to use. */
for (i = 0; i != MLX5_FLOW_TUNNEL; ++i) {
if (!rxq_ctrl->flow_tunnels_n[i])
continue;
if (!tunnel_ptype) {
tunnel_ptype = tunnels_info[i].ptype;
} else {
tunnel_ptype = 0;
break;
}
}
rxq_ctrl->rxq.tunnel = tunnel_ptype;
}
/**
* Set the Rx queue flags (Mark/Flag and Tunnel Ptypes) according to the devive
* flow.
*
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in] dev_handle
* Pointer to device flow handle structure.
*/
static void
flow_drv_rxq_flags_set(struct rte_eth_dev *dev,
struct mlx5_flow_handle *dev_handle)
{
struct mlx5_priv *priv = dev->data->dev_private;
const int mark = dev_handle->mark;
const int tunnel = !!(dev_handle->layers & MLX5_FLOW_LAYER_TUNNEL);
struct mlx5_ind_table_obj *ind_tbl = NULL;
unsigned int i;
if (dev_handle->fate_action == MLX5_FLOW_FATE_QUEUE) {
struct mlx5_hrxq *hrxq;
hrxq = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_HRXQ],
dev_handle->rix_hrxq);
if (hrxq)
ind_tbl = hrxq->ind_table;
} else if (dev_handle->fate_action == MLX5_FLOW_FATE_SHARED_RSS) {
struct mlx5_shared_action_rss *shared_rss;
shared_rss = mlx5_ipool_get
(priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS],
dev_handle->rix_srss);
if (shared_rss)
ind_tbl = shared_rss->ind_tbl;
}
if (!ind_tbl)
return;
for (i = 0; i != ind_tbl->queues_n; ++i) {
int idx = ind_tbl->queues[i];
struct mlx5_rxq_ctrl *rxq_ctrl =
container_of((*priv->rxqs)[idx],
struct mlx5_rxq_ctrl, rxq);
/*
* To support metadata register copy on Tx loopback,
* this must be always enabled (metadata may arive
* from other port - not from local flows only.
*/
if (priv->config.dv_flow_en &&
priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
mlx5_flow_ext_mreg_supported(dev)) {
rxq_ctrl->rxq.mark = 1;
rxq_ctrl->flow_mark_n = 1;
} else if (mark) {
rxq_ctrl->rxq.mark = 1;
rxq_ctrl->flow_mark_n++;
}
if (tunnel) {
unsigned int j;
/* Increase the counter matching the flow. */
for (j = 0; j != MLX5_FLOW_TUNNEL; ++j) {
if ((tunnels_info[j].tunnel &
dev_handle->layers) ==
tunnels_info[j].tunnel) {
rxq_ctrl->flow_tunnels_n[j]++;
break;
}
}
flow_rxq_tunnel_ptype_update(rxq_ctrl);
}
}
}
/**
* Set the Rx queue flags (Mark/Flag and Tunnel Ptypes) for a flow
*
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in] flow
* Pointer to flow structure.
*/
static void
flow_rxq_flags_set(struct rte_eth_dev *dev, struct rte_flow *flow)
{
struct mlx5_priv *priv = dev->data->dev_private;
uint32_t handle_idx;
struct mlx5_flow_handle *dev_handle;
SILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW], flow->dev_handles,
handle_idx, dev_handle, next)
flow_drv_rxq_flags_set(dev, dev_handle);
}
/**
* Clear the Rx queue flags (Mark/Flag and Tunnel Ptype) associated with the
* device flow if no other flow uses it with the same kind of request.
*
* @param dev
* Pointer to Ethernet device.
* @param[in] dev_handle
* Pointer to the device flow handle structure.
*/
static void
flow_drv_rxq_flags_trim(struct rte_eth_dev *dev,
struct mlx5_flow_handle *dev_handle)
{
struct mlx5_priv *priv = dev->data->dev_private;
const int mark = dev_handle->mark;
const int tunnel = !!(dev_handle->layers & MLX5_FLOW_LAYER_TUNNEL);
struct mlx5_ind_table_obj *ind_tbl = NULL;
unsigned int i;
if (dev_handle->fate_action == MLX5_FLOW_FATE_QUEUE) {
struct mlx5_hrxq *hrxq;
hrxq = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_HRXQ],
dev_handle->rix_hrxq);
if (hrxq)
ind_tbl = hrxq->ind_table;
} else if (dev_handle->fate_action == MLX5_FLOW_FATE_SHARED_RSS) {
struct mlx5_shared_action_rss *shared_rss;
shared_rss = mlx5_ipool_get
(priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS],
dev_handle->rix_srss);
if (shared_rss)
ind_tbl = shared_rss->ind_tbl;
}
if (!ind_tbl)
return;
MLX5_ASSERT(dev->data->dev_started);
for (i = 0; i != ind_tbl->queues_n; ++i) {
int idx = ind_tbl->queues[i];
struct mlx5_rxq_ctrl *rxq_ctrl =
container_of((*priv->rxqs)[idx],
struct mlx5_rxq_ctrl, rxq);
if (priv->config.dv_flow_en &&
priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
mlx5_flow_ext_mreg_supported(dev)) {
rxq_ctrl->rxq.mark = 1;
rxq_ctrl->flow_mark_n = 1;
} else if (mark) {
rxq_ctrl->flow_mark_n--;
rxq_ctrl->rxq.mark = !!rxq_ctrl->flow_mark_n;
}
if (tunnel) {
unsigned int j;
/* Decrease the counter matching the flow. */
for (j = 0; j != MLX5_FLOW_TUNNEL; ++j) {
if ((tunnels_info[j].tunnel &
dev_handle->layers) ==
tunnels_info[j].tunnel) {
rxq_ctrl->flow_tunnels_n[j]--;
break;
}
}
flow_rxq_tunnel_ptype_update(rxq_ctrl);
}
}
}
/**
* Clear the Rx queue flags (Mark/Flag and Tunnel Ptype) associated with the
* @p flow if no other flow uses it with the same kind of request.
*
* @param dev
* Pointer to Ethernet device.
* @param[in] flow
* Pointer to the flow.
*/
static void
flow_rxq_flags_trim(struct rte_eth_dev *dev, struct rte_flow *flow)
{
struct mlx5_priv *priv = dev->data->dev_private;
uint32_t handle_idx;
struct mlx5_flow_handle *dev_handle;
SILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW], flow->dev_handles,
handle_idx, dev_handle, next)
flow_drv_rxq_flags_trim(dev, dev_handle);
}
/**
* Clear the Mark/Flag and Tunnel ptype information in all Rx queues.
*
* @param dev
* Pointer to Ethernet device.
*/
static void
flow_rxq_flags_clear(struct rte_eth_dev *dev)
{
struct mlx5_priv *priv = dev->data->dev_private;
unsigned int i;
for (i = 0; i != priv->rxqs_n; ++i) {
struct mlx5_rxq_ctrl *rxq_ctrl;
unsigned int j;
if (!(*priv->rxqs)[i])
continue;
rxq_ctrl = container_of((*priv->rxqs)[i],
struct mlx5_rxq_ctrl, rxq);
rxq_ctrl->flow_mark_n = 0;
rxq_ctrl->rxq.mark = 0;
for (j = 0; j != MLX5_FLOW_TUNNEL; ++j)
rxq_ctrl->flow_tunnels_n[j] = 0;
rxq_ctrl->rxq.tunnel = 0;
}
}
/**
* Set the Rx queue dynamic metadata (mask and offset) for a flow
*
* @param[in] dev
* Pointer to the Ethernet device structure.
*/
void
mlx5_flow_rxq_dynf_metadata_set(struct rte_eth_dev *dev)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_rxq_data *data;
unsigned int i;
for (i = 0; i != priv->rxqs_n; ++i) {
if (!(*priv->rxqs)[i])
continue;
data = (*priv->rxqs)[i];
if (!rte_flow_dynf_metadata_avail()) {
data->dynf_meta = 0;
data->flow_meta_mask = 0;
data->flow_meta_offset = -1;
data->flow_meta_port_mask = 0;
} else {
data->dynf_meta = 1;
data->flow_meta_mask = rte_flow_dynf_metadata_mask;
data->flow_meta_offset = rte_flow_dynf_metadata_offs;
data->flow_meta_port_mask = (uint32_t)~0;
if (priv->config.dv_xmeta_en == MLX5_XMETA_MODE_META16)
data->flow_meta_port_mask >>= 16;
}
}
}
/*
* return a pointer to the desired action in the list of actions.
*
* @param[in] actions
* The list of actions to search the action in.
* @param[in] action
* The action to find.
*
* @return
* Pointer to the action in the list, if found. NULL otherwise.
*/
const struct rte_flow_action *
mlx5_flow_find_action(const struct rte_flow_action *actions,
enum rte_flow_action_type action)
{
if (actions == NULL)
return NULL;
for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++)
if (actions->type == action)
return actions;
return NULL;
}
/*
* Validate the flag action.
*
* @param[in] action_flags
* Bit-fields that holds the actions detected until now.
* @param[in] attr
* Attributes of flow that includes this action.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_action_flag(uint64_t action_flags,
const struct rte_flow_attr *attr,
struct rte_flow_error *error)
{
if (action_flags & MLX5_FLOW_ACTION_MARK)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can't mark and flag in same flow");
if (action_flags & MLX5_FLOW_ACTION_FLAG)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can't have 2 flag"
" actions in same flow");
if (attr->egress)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
"flag action not supported for "
"egress");
return 0;
}
/*
* Validate the mark action.
*
* @param[in] action
* Pointer to the queue action.
* @param[in] action_flags
* Bit-fields that holds the actions detected until now.
* @param[in] attr
* Attributes of flow that includes this action.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_action_mark(const struct rte_flow_action *action,
uint64_t action_flags,
const struct rte_flow_attr *attr,
struct rte_flow_error *error)
{
const struct rte_flow_action_mark *mark = action->conf;
if (!mark)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
action,
"configuration cannot be null");
if (mark->id >= MLX5_FLOW_MARK_MAX)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
&mark->id,
"mark id must in 0 <= id < "
RTE_STR(MLX5_FLOW_MARK_MAX));
if (action_flags & MLX5_FLOW_ACTION_FLAG)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can't flag and mark in same flow");
if (action_flags & MLX5_FLOW_ACTION_MARK)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can't have 2 mark actions in same"
" flow");
if (attr->egress)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
"mark action not supported for "
"egress");
return 0;
}
/*
* Validate the drop action.
*
* @param[in] action_flags
* Bit-fields that holds the actions detected until now.
* @param[in] attr
* Attributes of flow that includes this action.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_action_drop(uint64_t action_flags __rte_unused,
const struct rte_flow_attr *attr,
struct rte_flow_error *error)
{
if (attr->egress)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
"drop action not supported for "
"egress");
return 0;
}
/*
* Validate the queue action.
*
* @param[in] action
* Pointer to the queue action.
* @param[in] action_flags
* Bit-fields that holds the actions detected until now.
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in] attr
* Attributes of flow that includes this action.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_action_queue(const struct rte_flow_action *action,
uint64_t action_flags,
struct rte_eth_dev *dev,
const struct rte_flow_attr *attr,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
const struct rte_flow_action_queue *queue = action->conf;
if (action_flags & MLX5_FLOW_FATE_ACTIONS)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can't have 2 fate actions in"
" same flow");
if (!priv->rxqs_n)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
NULL, "No Rx queues configured");
if (queue->index >= priv->rxqs_n)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
&queue->index,
"queue index out of range");
if (!(*priv->rxqs)[queue->index])
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
&queue->index,
"queue is not configured");
if (attr->egress)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
"queue action not supported for "
"egress");
return 0;
}
/*
* Validate the rss action.
*
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in] action
* Pointer to the queue action.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_validate_action_rss(struct rte_eth_dev *dev,
const struct rte_flow_action *action,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
const struct rte_flow_action_rss *rss = action->conf;
enum mlx5_rxq_type rxq_type = MLX5_RXQ_TYPE_UNDEFINED;
unsigned int i;
if (rss->func != RTE_ETH_HASH_FUNCTION_DEFAULT &&
rss->func != RTE_ETH_HASH_FUNCTION_TOEPLITZ)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
&rss->func,
"RSS hash function not supported");
#ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
if (rss->level > 2)
#else
if (rss->level > 1)
#endif
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
&rss->level,
"tunnel RSS is not supported");
/* allow RSS key_len 0 in case of NULL (default) RSS key. */
if (rss->key_len == 0 && rss->key != NULL)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
&rss->key_len,
"RSS hash key length 0");
if (rss->key_len > 0 && rss->key_len < MLX5_RSS_HASH_KEY_LEN)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
&rss->key_len,
"RSS hash key too small");
if (rss->key_len > MLX5_RSS_HASH_KEY_LEN)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
&rss->key_len,
"RSS hash key too large");
if (rss->queue_num > priv->config.ind_table_max_size)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
&rss->queue_num,
"number of queues too large");
if (rss->types & MLX5_RSS_HF_MASK)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
&rss->types,
"some RSS protocols are not"
" supported");
if ((rss->types & (ETH_RSS_L3_SRC_ONLY | ETH_RSS_L3_DST_ONLY)) &&
!(rss->types & ETH_RSS_IP))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
"L3 partial RSS requested but L3 RSS"
" type not specified");
if ((rss->types & (ETH_RSS_L4_SRC_ONLY | ETH_RSS_L4_DST_ONLY)) &&
!(rss->types & (ETH_RSS_UDP | ETH_RSS_TCP)))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
"L4 partial RSS requested but L4 RSS"
" type not specified");
if (!priv->rxqs_n)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
NULL, "No Rx queues configured");
if (!rss->queue_num)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
NULL, "No queues configured");
for (i = 0; i != rss->queue_num; ++i) {
struct mlx5_rxq_ctrl *rxq_ctrl;
if (rss->queue[i] >= priv->rxqs_n)
return rte_flow_error_set
(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
&rss->queue[i], "queue index out of range");
if (!(*priv->rxqs)[rss->queue[i]])
return rte_flow_error_set
(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_CONF,
&rss->queue[i], "queue is not configured");
rxq_ctrl = container_of((*priv->rxqs)[rss->queue[i]],
struct mlx5_rxq_ctrl, rxq);
if (i == 0)
rxq_type = rxq_ctrl->type;
if (rxq_type != rxq_ctrl->type)
return rte_flow_error_set
(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION_CONF,
&rss->queue[i],
"combining hairpin and regular RSS queues is not supported");
}
return 0;
}
/*
* Validate the rss action.
*
* @param[in] action
* Pointer to the queue action.
* @param[in] action_flags
* Bit-fields that holds the actions detected until now.
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in] attr
* Attributes of flow that includes this action.
* @param[in] item_flags
* Items that were detected.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_action_rss(const struct rte_flow_action *action,
uint64_t action_flags,
struct rte_eth_dev *dev,
const struct rte_flow_attr *attr,
uint64_t item_flags,
struct rte_flow_error *error)
{
const struct rte_flow_action_rss *rss = action->conf;
int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
int ret;
if (action_flags & MLX5_FLOW_FATE_ACTIONS)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can't have 2 fate actions"
" in same flow");
ret = mlx5_validate_action_rss(dev, action, error);
if (ret)
return ret;
if (attr->egress)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
"rss action not supported for "
"egress");
if (rss->level > 1 && !tunnel)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
"inner RSS is not supported for "
"non-tunnel flows");
if ((item_flags & MLX5_FLOW_LAYER_ECPRI) &&
!(item_flags & MLX5_FLOW_LAYER_INNER_L4_UDP)) {
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
"RSS on eCPRI is not supported now");
}
return 0;
}
/*
* Validate the default miss action.
*
* @param[in] action_flags
* Bit-fields that holds the actions detected until now.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_action_default_miss(uint64_t action_flags,
const struct rte_flow_attr *attr,
struct rte_flow_error *error)
{
if (action_flags & MLX5_FLOW_FATE_ACTIONS)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can't have 2 fate actions in"
" same flow");
if (attr->egress)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
"default miss action not supported "
"for egress");
if (attr->group)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_GROUP, NULL,
"only group 0 is supported");
if (attr->transfer)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
NULL, "transfer is not supported");
return 0;
}
/*
* Validate the count action.
*
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in] attr
* Attributes of flow that includes this action.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_action_count(struct rte_eth_dev *dev __rte_unused,
const struct rte_flow_attr *attr,
struct rte_flow_error *error)
{
if (attr->egress)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
"count action not supported for "
"egress");
return 0;
}
/**
* Verify the @p attributes will be correctly understood by the NIC and store
* them in the @p flow if everything is correct.
*
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in] attributes
* Pointer to flow attributes
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_attributes(struct rte_eth_dev *dev,
const struct rte_flow_attr *attributes,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
uint32_t priority_max = priv->config.flow_prio - 1;
if (attributes->group)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
NULL, "groups is not supported");
if (attributes->priority != MLX5_FLOW_LOWEST_PRIO_INDICATOR &&
attributes->priority >= priority_max)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
NULL, "priority out of range");
if (attributes->egress)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
"egress is not supported");
if (attributes->transfer && !priv->config.dv_esw_en)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
NULL, "transfer is not supported");
if (!attributes->ingress)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
NULL,
"ingress attribute is mandatory");
return 0;
}
/**
* Validate ICMP6 item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit-fields that holds the items detected until now.
* @param[in] ext_vlan_sup
* Whether extended VLAN features are supported or not.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_icmp6(const struct rte_flow_item *item,
uint64_t item_flags,
uint8_t target_protocol,
struct rte_flow_error *error)
{
const struct rte_flow_item_icmp6 *mask = item->mask;
const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV6 :
MLX5_FLOW_LAYER_OUTER_L3_IPV6;
const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
MLX5_FLOW_LAYER_OUTER_L4;
int ret;
if (target_protocol != 0xFF && target_protocol != IPPROTO_ICMPV6)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"protocol filtering not compatible"
" with ICMP6 layer");
if (!(item_flags & l3m))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"IPv6 is mandatory to filter on"
" ICMP6");
if (item_flags & l4m)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple L4 layers not supported");
if (!mask)
mask = &rte_flow_item_icmp6_mask;
ret = mlx5_flow_item_acceptable
(item, (const uint8_t *)mask,
(const uint8_t *)&rte_flow_item_icmp6_mask,
sizeof(struct rte_flow_item_icmp6),
MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
if (ret < 0)
return ret;
return 0;
}
/**
* Validate ICMP item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit-fields that holds the items detected until now.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_icmp(const struct rte_flow_item *item,
uint64_t item_flags,
uint8_t target_protocol,
struct rte_flow_error *error)
{
const struct rte_flow_item_icmp *mask = item->mask;
const struct rte_flow_item_icmp nic_mask = {
.hdr.icmp_type = 0xff,
.hdr.icmp_code = 0xff,
.hdr.icmp_ident = RTE_BE16(0xffff),
.hdr.icmp_seq_nb = RTE_BE16(0xffff),
};
const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV4 :
MLX5_FLOW_LAYER_OUTER_L3_IPV4;
const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
MLX5_FLOW_LAYER_OUTER_L4;
int ret;
if (target_protocol != 0xFF && target_protocol != IPPROTO_ICMP)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"protocol filtering not compatible"
" with ICMP layer");
if (!(item_flags & l3m))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"IPv4 is mandatory to filter"
" on ICMP");
if (item_flags & l4m)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple L4 layers not supported");
if (!mask)
mask = &nic_mask;
ret = mlx5_flow_item_acceptable
(item, (const uint8_t *)mask,
(const uint8_t *)&nic_mask,
sizeof(struct rte_flow_item_icmp),
MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
if (ret < 0)
return ret;
return 0;
}
/**
* Validate Ethernet item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit-fields that holds the items detected until now.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_eth(const struct rte_flow_item *item,
uint64_t item_flags, bool ext_vlan_sup,
struct rte_flow_error *error)
{
const struct rte_flow_item_eth *mask = item->mask;
const struct rte_flow_item_eth nic_mask = {
.dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
.src.addr_bytes = "\xff\xff\xff\xff\xff\xff",
.type = RTE_BE16(0xffff),
.has_vlan = ext_vlan_sup ? 1 : 0,
};
int ret;
int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
const uint64_t ethm = tunnel ? MLX5_FLOW_LAYER_INNER_L2 :
MLX5_FLOW_LAYER_OUTER_L2;
if (item_flags & ethm)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple L2 layers not supported");
if ((!tunnel && (item_flags & MLX5_FLOW_LAYER_OUTER_L3)) ||
(tunnel && (item_flags & MLX5_FLOW_LAYER_INNER_L3)))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"L2 layer should not follow "
"L3 layers");
if ((!tunnel && (item_flags & MLX5_FLOW_LAYER_OUTER_VLAN)) ||
(tunnel && (item_flags & MLX5_FLOW_LAYER_INNER_VLAN)))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"L2 layer should not follow VLAN");
if (!mask)
mask = &rte_flow_item_eth_mask;
ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
(const uint8_t *)&nic_mask,
sizeof(struct rte_flow_item_eth),
MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
return ret;
}
/**
* Validate VLAN item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit-fields that holds the items detected until now.
* @param[in] dev
* Ethernet device flow is being created on.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_vlan(const struct rte_flow_item *item,
uint64_t item_flags,
struct rte_eth_dev *dev,
struct rte_flow_error *error)
{
const struct rte_flow_item_vlan *spec = item->spec;
const struct rte_flow_item_vlan *mask = item->mask;
const struct rte_flow_item_vlan nic_mask = {
.tci = RTE_BE16(UINT16_MAX),
.inner_type = RTE_BE16(UINT16_MAX),
};
uint16_t vlan_tag = 0;
const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
int ret;
const uint64_t l34m = tunnel ? (MLX5_FLOW_LAYER_INNER_L3 |
MLX5_FLOW_LAYER_INNER_L4) :
(MLX5_FLOW_LAYER_OUTER_L3 |
MLX5_FLOW_LAYER_OUTER_L4);
const uint64_t vlanm = tunnel ? MLX5_FLOW_LAYER_INNER_VLAN :
MLX5_FLOW_LAYER_OUTER_VLAN;
if (item_flags & vlanm)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple VLAN layers not supported");
else if ((item_flags & l34m) != 0)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"VLAN cannot follow L3/L4 layer");
if (!mask)
mask = &rte_flow_item_vlan_mask;
ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
(const uint8_t *)&nic_mask,
sizeof(struct rte_flow_item_vlan),
MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
if (ret)
return ret;
if (!tunnel && mask->tci != RTE_BE16(0x0fff)) {
struct mlx5_priv *priv = dev->data->dev_private;
if (priv->vmwa_context) {
/*
* Non-NULL context means we have a virtual machine
* and SR-IOV enabled, we have to create VLAN interface
* to make hypervisor to setup E-Switch vport
* context correctly. We avoid creating the multiple
* VLAN interfaces, so we cannot support VLAN tag mask.
*/
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"VLAN tag mask is not"
" supported in virtual"
" environment");
}
}
if (spec) {
vlan_tag = spec->tci;
vlan_tag &= mask->tci;
}
/*
* From verbs perspective an empty VLAN is equivalent
* to a packet without VLAN layer.
*/
if (!vlan_tag)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM_SPEC,
item->spec,
"VLAN cannot be empty");
return 0;
}
/**
* Validate IPV4 item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit-fields that holds the items detected until now.
* @param[in] last_item
* Previous validated item in the pattern items.
* @param[in] ether_type
* Type in the ethernet layer header (including dot1q).
* @param[in] acc_mask
* Acceptable mask, if NULL default internal default mask
* will be used to check whether item fields are supported.
* @param[in] range_accepted
* True if range of values is accepted for specific fields, false otherwise.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_ipv4(const struct rte_flow_item *item,
uint64_t item_flags,
uint64_t last_item,
uint16_t ether_type,
const struct rte_flow_item_ipv4 *acc_mask,
bool range_accepted,
struct rte_flow_error *error)
{
const struct rte_flow_item_ipv4 *mask = item->mask;
const struct rte_flow_item_ipv4 *spec = item->spec;
const struct rte_flow_item_ipv4 nic_mask = {
.hdr = {
.src_addr = RTE_BE32(0xffffffff),
.dst_addr = RTE_BE32(0xffffffff),
.type_of_service = 0xff,
.next_proto_id = 0xff,
},
};
const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
MLX5_FLOW_LAYER_OUTER_L3;
const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
MLX5_FLOW_LAYER_OUTER_L4;
int ret;
uint8_t next_proto = 0xFF;
const uint64_t l2_vlan = (MLX5_FLOW_LAYER_L2 |
MLX5_FLOW_LAYER_OUTER_VLAN |
MLX5_FLOW_LAYER_INNER_VLAN);
if ((last_item & l2_vlan) && ether_type &&
ether_type != RTE_ETHER_TYPE_IPV4)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"IPv4 cannot follow L2/VLAN layer "
"which ether type is not IPv4");
if (item_flags & MLX5_FLOW_LAYER_IPIP) {
if (mask && spec)
next_proto = mask->hdr.next_proto_id &
spec->hdr.next_proto_id;
if (next_proto == IPPROTO_IPIP || next_proto == IPPROTO_IPV6)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"multiple tunnel "
"not supported");
}
if (item_flags & MLX5_FLOW_LAYER_IPV6_ENCAP)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"wrong tunnel type - IPv6 specified "
"but IPv4 item provided");
if (item_flags & l3m)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple L3 layers not supported");
else if (item_flags & l4m)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"L3 cannot follow an L4 layer.");
else if ((item_flags & MLX5_FLOW_LAYER_NVGRE) &&
!(item_flags & MLX5_FLOW_LAYER_INNER_L2))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"L3 cannot follow an NVGRE layer.");
if (!mask)
mask = &rte_flow_item_ipv4_mask;
else if (mask->hdr.next_proto_id != 0 &&
mask->hdr.next_proto_id != 0xff)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
"partial mask is not supported"
" for protocol");
ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
acc_mask ? (const uint8_t *)acc_mask
: (const uint8_t *)&nic_mask,
sizeof(struct rte_flow_item_ipv4),
range_accepted, error);
if (ret < 0)
return ret;
return 0;
}
/**
* Validate IPV6 item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit-fields that holds the items detected until now.
* @param[in] last_item
* Previous validated item in the pattern items.
* @param[in] ether_type
* Type in the ethernet layer header (including dot1q).
* @param[in] acc_mask
* Acceptable mask, if NULL default internal default mask
* will be used to check whether item fields are supported.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_ipv6(const struct rte_flow_item *item,
uint64_t item_flags,
uint64_t last_item,
uint16_t ether_type,
const struct rte_flow_item_ipv6 *acc_mask,
struct rte_flow_error *error)
{
const struct rte_flow_item_ipv6 *mask = item->mask;
const struct rte_flow_item_ipv6 *spec = item->spec;
const struct rte_flow_item_ipv6 nic_mask = {
.hdr = {
.src_addr =
"\xff\xff\xff\xff\xff\xff\xff\xff"
"\xff\xff\xff\xff\xff\xff\xff\xff",
.dst_addr =
"\xff\xff\xff\xff\xff\xff\xff\xff"
"\xff\xff\xff\xff\xff\xff\xff\xff",
.vtc_flow = RTE_BE32(0xffffffff),
.proto = 0xff,
},
};
const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
MLX5_FLOW_LAYER_OUTER_L3;
const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
MLX5_FLOW_LAYER_OUTER_L4;
int ret;
uint8_t next_proto = 0xFF;
const uint64_t l2_vlan = (MLX5_FLOW_LAYER_L2 |
MLX5_FLOW_LAYER_OUTER_VLAN |
MLX5_FLOW_LAYER_INNER_VLAN);
if ((last_item & l2_vlan) && ether_type &&
ether_type != RTE_ETHER_TYPE_IPV6)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"IPv6 cannot follow L2/VLAN layer "
"which ether type is not IPv6");
if (mask && mask->hdr.proto == UINT8_MAX && spec)
next_proto = spec->hdr.proto;
if (item_flags & MLX5_FLOW_LAYER_IPV6_ENCAP) {
if (next_proto == IPPROTO_IPIP || next_proto == IPPROTO_IPV6)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"multiple tunnel "
"not supported");
}
if (next_proto == IPPROTO_HOPOPTS ||
next_proto == IPPROTO_ROUTING ||
next_proto == IPPROTO_FRAGMENT ||
next_proto == IPPROTO_ESP ||
next_proto == IPPROTO_AH ||
next_proto == IPPROTO_DSTOPTS)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"IPv6 proto (next header) should "
"not be set as extension header");
if (item_flags & MLX5_FLOW_LAYER_IPIP)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"wrong tunnel type - IPv4 specified "
"but IPv6 item provided");
if (item_flags & l3m)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple L3 layers not supported");
else if (item_flags & l4m)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"L3 cannot follow an L4 layer.");
else if ((item_flags & MLX5_FLOW_LAYER_NVGRE) &&
!(item_flags & MLX5_FLOW_LAYER_INNER_L2))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"L3 cannot follow an NVGRE layer.");
if (!mask)
mask = &rte_flow_item_ipv6_mask;
ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
acc_mask ? (const uint8_t *)acc_mask
: (const uint8_t *)&nic_mask,
sizeof(struct rte_flow_item_ipv6),
MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
if (ret < 0)
return ret;
return 0;
}
/**
* Validate UDP item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit-fields that holds the items detected until now.
* @param[in] target_protocol
* The next protocol in the previous item.
* @param[in] flow_mask
* mlx5 flow-specific (DV, verbs, etc.) supported header fields mask.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_udp(const struct rte_flow_item *item,
uint64_t item_flags,
uint8_t target_protocol,
struct rte_flow_error *error)
{
const struct rte_flow_item_udp *mask = item->mask;
const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
MLX5_FLOW_LAYER_OUTER_L3;
const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
MLX5_FLOW_LAYER_OUTER_L4;
int ret;
if (target_protocol != 0xff && target_protocol != IPPROTO_UDP)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"protocol filtering not compatible"
" with UDP layer");
if (!(item_flags & l3m))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"L3 is mandatory to filter on L4");
if (item_flags & l4m)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple L4 layers not supported");
if (!mask)
mask = &rte_flow_item_udp_mask;
ret = mlx5_flow_item_acceptable
(item, (const uint8_t *)mask,
(const uint8_t *)&rte_flow_item_udp_mask,
sizeof(struct rte_flow_item_udp), MLX5_ITEM_RANGE_NOT_ACCEPTED,
error);
if (ret < 0)
return ret;
return 0;
}
/**
* Validate TCP item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit-fields that holds the items detected until now.
* @param[in] target_protocol
* The next protocol in the previous item.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_tcp(const struct rte_flow_item *item,
uint64_t item_flags,
uint8_t target_protocol,
const struct rte_flow_item_tcp *flow_mask,
struct rte_flow_error *error)
{
const struct rte_flow_item_tcp *mask = item->mask;
const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
MLX5_FLOW_LAYER_OUTER_L3;
const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
MLX5_FLOW_LAYER_OUTER_L4;
int ret;
MLX5_ASSERT(flow_mask);
if (target_protocol != 0xff && target_protocol != IPPROTO_TCP)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"protocol filtering not compatible"
" with TCP layer");
if (!(item_flags & l3m))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"L3 is mandatory to filter on L4");
if (item_flags & l4m)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple L4 layers not supported");
if (!mask)
mask = &rte_flow_item_tcp_mask;
ret = mlx5_flow_item_acceptable
(item, (const uint8_t *)mask,
(const uint8_t *)flow_mask,
sizeof(struct rte_flow_item_tcp), MLX5_ITEM_RANGE_NOT_ACCEPTED,
error);
if (ret < 0)
return ret;
return 0;
}
/**
* Validate VXLAN item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit-fields that holds the items detected until now.
* @param[in] target_protocol
* The next protocol in the previous item.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_vxlan(const struct rte_flow_item *item,
uint64_t item_flags,
struct rte_flow_error *error)
{
const struct rte_flow_item_vxlan *spec = item->spec;
const struct rte_flow_item_vxlan *mask = item->mask;
int ret;
union vni {
uint32_t vlan_id;
uint8_t vni[4];
} id = { .vlan_id = 0, };
if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple tunnel layers not"
" supported");
/*
* Verify only UDPv4 is present as defined in
* https://tools.ietf.org/html/rfc7348
*/
if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"no outer UDP layer found");
if (!mask)
mask = &rte_flow_item_vxlan_mask;
ret = mlx5_flow_item_acceptable
(item, (const uint8_t *)mask,
(const uint8_t *)&rte_flow_item_vxlan_mask,
sizeof(struct rte_flow_item_vxlan),
MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
if (ret < 0)
return ret;
if (spec) {
memcpy(&id.vni[1], spec->vni, 3);
memcpy(&id.vni[1], mask->vni, 3);
}
if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"VXLAN tunnel must be fully defined");
return 0;
}
/**
* Validate VXLAN_GPE item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit-fields that holds the items detected until now.
* @param[in] priv
* Pointer to the private data structure.
* @param[in] target_protocol
* The next protocol in the previous item.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_vxlan_gpe(const struct rte_flow_item *item,
uint64_t item_flags,
struct rte_eth_dev *dev,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
const struct rte_flow_item_vxlan_gpe *spec = item->spec;
const struct rte_flow_item_vxlan_gpe *mask = item->mask;
int ret;
union vni {
uint32_t vlan_id;
uint8_t vni[4];
} id = { .vlan_id = 0, };
if (!priv->config.l3_vxlan_en)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"L3 VXLAN is not enabled by device"
" parameter and/or not configured in"
" firmware");
if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple tunnel layers not"
" supported");
/*
* Verify only UDPv4 is present as defined in
* https://tools.ietf.org/html/rfc7348
*/
if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"no outer UDP layer found");
if (!mask)
mask = &rte_flow_item_vxlan_gpe_mask;
ret = mlx5_flow_item_acceptable
(item, (const uint8_t *)mask,
(const uint8_t *)&rte_flow_item_vxlan_gpe_mask,
sizeof(struct rte_flow_item_vxlan_gpe),
MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
if (ret < 0)
return ret;
if (spec) {
if (spec->protocol)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"VxLAN-GPE protocol"
" not supported");
memcpy(&id.vni[1], spec->vni, 3);
memcpy(&id.vni[1], mask->vni, 3);
}
if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"VXLAN-GPE tunnel must be fully"
" defined");
return 0;
}
/**
* Validate GRE Key item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit flags to mark detected items.
* @param[in] gre_item
* Pointer to gre_item
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_gre_key(const struct rte_flow_item *item,
uint64_t item_flags,
const struct rte_flow_item *gre_item,
struct rte_flow_error *error)
{
const rte_be32_t *mask = item->mask;
int ret = 0;
rte_be32_t gre_key_default_mask = RTE_BE32(UINT32_MAX);
const struct rte_flow_item_gre *gre_spec;
const struct rte_flow_item_gre *gre_mask;
if (item_flags & MLX5_FLOW_LAYER_GRE_KEY)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Multiple GRE key not support");
if (!(item_flags & MLX5_FLOW_LAYER_GRE))
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"No preceding GRE header");
if (item_flags & MLX5_FLOW_LAYER_INNER)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"GRE key following a wrong item");
gre_mask = gre_item->mask;
if (!gre_mask)
gre_mask = &rte_flow_item_gre_mask;
gre_spec = gre_item->spec;
if (gre_spec && (gre_mask->c_rsvd0_ver & RTE_BE16(0x2000)) &&
!(gre_spec->c_rsvd0_ver & RTE_BE16(0x2000)))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Key bit must be on");
if (!mask)
mask = &gre_key_default_mask;
ret = mlx5_flow_item_acceptable
(item, (const uint8_t *)mask,
(const uint8_t *)&gre_key_default_mask,
sizeof(rte_be32_t), MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
return ret;
}
/**
* Validate GRE item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit flags to mark detected items.
* @param[in] target_protocol
* The next protocol in the previous item.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_gre(const struct rte_flow_item *item,
uint64_t item_flags,
uint8_t target_protocol,
struct rte_flow_error *error)
{
const struct rte_flow_item_gre *spec __rte_unused = item->spec;
const struct rte_flow_item_gre *mask = item->mask;
int ret;
const struct rte_flow_item_gre nic_mask = {
.c_rsvd0_ver = RTE_BE16(0xB000),
.protocol = RTE_BE16(UINT16_MAX),
};
if (target_protocol != 0xff && target_protocol != IPPROTO_GRE)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"protocol filtering not compatible"
" with this GRE layer");
if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple tunnel layers not"
" supported");
if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L3))
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"L3 Layer is missing");
if (!mask)
mask = &rte_flow_item_gre_mask;
ret = mlx5_flow_item_acceptable
(item, (const uint8_t *)mask,
(const uint8_t *)&nic_mask,
sizeof(struct rte_flow_item_gre), MLX5_ITEM_RANGE_NOT_ACCEPTED,
error);
if (ret < 0)
return ret;
#ifndef HAVE_MLX5DV_DR
#ifndef HAVE_IBV_DEVICE_MPLS_SUPPORT
if (spec && (spec->protocol & mask->protocol))
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"without MPLS support the"
" specification cannot be used for"
" filtering");
#endif
#endif
return 0;
}
/**
* Validate Geneve item.
*
* @param[in] item
* Item specification.
* @param[in] itemFlags
* Bit-fields that holds the items detected until now.
* @param[in] enPriv
* Pointer to the private data structure.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_geneve(const struct rte_flow_item *item,
uint64_t item_flags,
struct rte_eth_dev *dev,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
const struct rte_flow_item_geneve *spec = item->spec;
const struct rte_flow_item_geneve *mask = item->mask;
int ret;
uint16_t gbhdr;
uint8_t opt_len = priv->config.hca_attr.geneve_max_opt_len ?
MLX5_GENEVE_OPT_LEN_1 : MLX5_GENEVE_OPT_LEN_0;
const struct rte_flow_item_geneve nic_mask = {
.ver_opt_len_o_c_rsvd0 = RTE_BE16(0x3f80),
.vni = "\xff\xff\xff",
.protocol = RTE_BE16(UINT16_MAX),
};
if (!priv->config.hca_attr.tunnel_stateless_geneve_rx)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"L3 Geneve is not enabled by device"
" parameter and/or not configured in"
" firmware");
if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple tunnel layers not"
" supported");
/*
* Verify only UDPv4 is present as defined in
* https://tools.ietf.org/html/rfc7348
*/
if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"no outer UDP layer found");
if (!mask)
mask = &rte_flow_item_geneve_mask;
ret = mlx5_flow_item_acceptable
(item, (const uint8_t *)mask,
(const uint8_t *)&nic_mask,
sizeof(struct rte_flow_item_geneve),
MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
if (ret)
return ret;
if (spec) {
gbhdr = rte_be_to_cpu_16(spec->ver_opt_len_o_c_rsvd0);
if (MLX5_GENEVE_VER_VAL(gbhdr) ||
MLX5_GENEVE_CRITO_VAL(gbhdr) ||
MLX5_GENEVE_RSVD_VAL(gbhdr) || spec->rsvd1)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"Geneve protocol unsupported"
" fields are being used");
if (MLX5_GENEVE_OPTLEN_VAL(gbhdr) > opt_len)
return rte_flow_error_set
(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"Unsupported Geneve options length");
}
if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
return rte_flow_error_set
(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Geneve tunnel must be fully defined");
return 0;
}
/**
* Validate Geneve TLV option item.
*
* @param[in] item
* Item specification.
* @param[in] last_item
* Previous validated item in the pattern items.
* @param[in] geneve_item
* Previous GENEVE item specification.
* @param[in] dev
* Pointer to the rte_eth_dev structure.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_geneve_opt(const struct rte_flow_item *item,
uint64_t last_item,
const struct rte_flow_item *geneve_item,
struct rte_eth_dev *dev,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_dev_ctx_shared *sh = priv->sh;
struct mlx5_geneve_tlv_option_resource *geneve_opt_resource;
struct mlx5_hca_attr *hca_attr = &priv->config.hca_attr;
uint8_t data_max_supported =
hca_attr->max_geneve_tlv_option_data_len * 4;
struct mlx5_dev_config *config = &priv->config;
const struct rte_flow_item_geneve *geneve_spec;
const struct rte_flow_item_geneve *geneve_mask;
const struct rte_flow_item_geneve_opt *spec = item->spec;
const struct rte_flow_item_geneve_opt *mask = item->mask;
unsigned int i;
unsigned int data_len;
uint8_t tlv_option_len;
uint16_t optlen_m, optlen_v;
const struct rte_flow_item_geneve_opt full_mask = {
.option_class = RTE_BE16(0xffff),
.option_type = 0xff,
.option_len = 0x1f,
};
if (!mask)
mask = &rte_flow_item_geneve_opt_mask;
if (!spec)
return rte_flow_error_set
(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item,
"Geneve TLV opt class/type/length must be specified");
if ((uint32_t)spec->option_len > MLX5_GENEVE_OPTLEN_MASK)
return rte_flow_error_set
(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item,
"Geneve TLV opt length exceeeds the limit (31)");
/* Check if class type and length masks are full. */
if (full_mask.option_class != mask->option_class ||
full_mask.option_type != mask->option_type ||
full_mask.option_len != (mask->option_len & full_mask.option_len))
return rte_flow_error_set
(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item,
"Geneve TLV opt class/type/length masks must be full");
/* Check if length is supported */
if ((uint32_t)spec->option_len >
config->hca_attr.max_geneve_tlv_option_data_len)
return rte_flow_error_set
(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item,
"Geneve TLV opt length not supported");
if (config->hca_attr.max_geneve_tlv_options > 1)
DRV_LOG(DEBUG,
"max_geneve_tlv_options supports more than 1 option");
/* Check GENEVE item preceding. */
if (!geneve_item || !(last_item & MLX5_FLOW_LAYER_GENEVE))
return rte_flow_error_set
(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item,
"Geneve opt item must be preceded with Geneve item");
geneve_spec = geneve_item->spec;
geneve_mask = geneve_item->mask ? geneve_item->mask :
&rte_flow_item_geneve_mask;
/* Check if GENEVE TLV option size doesn't exceed option length */
if (geneve_spec && (geneve_mask->ver_opt_len_o_c_rsvd0 ||
geneve_spec->ver_opt_len_o_c_rsvd0)) {
tlv_option_len = spec->option_len & mask->option_len;
optlen_v = rte_be_to_cpu_16(geneve_spec->ver_opt_len_o_c_rsvd0);
optlen_v = MLX5_GENEVE_OPTLEN_VAL(optlen_v);
optlen_m = rte_be_to_cpu_16(geneve_mask->ver_opt_len_o_c_rsvd0);
optlen_m = MLX5_GENEVE_OPTLEN_VAL(optlen_m);
if ((optlen_v & optlen_m) <= tlv_option_len)
return rte_flow_error_set
(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item,
"GENEVE TLV option length exceeds optlen");
}
/* Check if length is 0 or data is 0. */
if (spec->data == NULL || spec->option_len == 0)
return rte_flow_error_set
(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item,
"Geneve TLV opt with zero data/length not supported");
/* Check not all data & mask are 0. */
data_len = spec->option_len * 4;
if (mask->data == NULL) {
for (i = 0; i < data_len; i++)
if (spec->data[i])
break;
if (i == data_len)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Can't match on Geneve option data 0");
} else {
for (i = 0; i < data_len; i++)
if (spec->data[i] & mask->data[i])
break;
if (i == data_len)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Can't match on Geneve option data and mask 0");
/* Check data mask supported. */
for (i = data_max_supported; i < data_len ; i++)
if (mask->data[i])
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Data mask is of unsupported size");
}
/* Check GENEVE option is supported in NIC. */
if (!config->hca_attr.geneve_tlv_opt)
return rte_flow_error_set
(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item,
"Geneve TLV opt not supported");
/* Check if we already have geneve option with different type/class. */
rte_spinlock_lock(&sh->geneve_tlv_opt_sl);
geneve_opt_resource = sh->geneve_tlv_option_resource;
if (geneve_opt_resource != NULL)
if (geneve_opt_resource->option_class != spec->option_class ||
geneve_opt_resource->option_type != spec->option_type ||
geneve_opt_resource->length != spec->option_len) {
rte_spinlock_unlock(&sh->geneve_tlv_opt_sl);
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Only one Geneve TLV option supported");
}
rte_spinlock_unlock(&sh->geneve_tlv_opt_sl);
return 0;
}
/**
* Validate MPLS item.
*
* @param[in] dev
* Pointer to the rte_eth_dev structure.
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit-fields that holds the items detected until now.
* @param[in] prev_layer
* The protocol layer indicated in previous item.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_mpls(struct rte_eth_dev *dev __rte_unused,
const struct rte_flow_item *item __rte_unused,
uint64_t item_flags __rte_unused,
uint64_t prev_layer __rte_unused,
struct rte_flow_error *error)
{
#ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
const struct rte_flow_item_mpls *mask = item->mask;
struct mlx5_priv *priv = dev->data->dev_private;
int ret;
if (!priv->config.mpls_en)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"MPLS not supported or"
" disabled in firmware"
" configuration.");
/* MPLS over IP, UDP, GRE is allowed */
if (!(prev_layer & (MLX5_FLOW_LAYER_OUTER_L3 |
MLX5_FLOW_LAYER_OUTER_L4_UDP |
MLX5_FLOW_LAYER_GRE |
MLX5_FLOW_LAYER_GRE_KEY)))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"protocol filtering not compatible"
" with MPLS layer");
/* Multi-tunnel isn't allowed but MPLS over GRE is an exception. */
if ((item_flags & MLX5_FLOW_LAYER_TUNNEL) &&
!(item_flags & MLX5_FLOW_LAYER_GRE))
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple tunnel layers not"
" supported");
if (!mask)
mask = &rte_flow_item_mpls_mask;
ret = mlx5_flow_item_acceptable
(item, (const uint8_t *)mask,
(const uint8_t *)&rte_flow_item_mpls_mask,
sizeof(struct rte_flow_item_mpls),
MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
if (ret < 0)
return ret;
return 0;
#else
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"MPLS is not supported by Verbs, please"
" update.");
#endif
}
/**
* Validate NVGRE item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit flags to mark detected items.
* @param[in] target_protocol
* The next protocol in the previous item.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_nvgre(const struct rte_flow_item *item,
uint64_t item_flags,
uint8_t target_protocol,
struct rte_flow_error *error)
{
const struct rte_flow_item_nvgre *mask = item->mask;
int ret;
if (target_protocol != 0xff && target_protocol != IPPROTO_GRE)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"protocol filtering not compatible"
" with this GRE layer");
if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple tunnel layers not"
" supported");
if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L3))
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"L3 Layer is missing");
if (!mask)
mask = &rte_flow_item_nvgre_mask;
ret = mlx5_flow_item_acceptable
(item, (const uint8_t *)mask,
(const uint8_t *)&rte_flow_item_nvgre_mask,
sizeof(struct rte_flow_item_nvgre),
MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
if (ret < 0)
return ret;
return 0;
}
/**
* Validate eCPRI item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit-fields that holds the items detected until now.
* @param[in] last_item
* Previous validated item in the pattern items.
* @param[in] ether_type
* Type in the ethernet layer header (including dot1q).
* @param[in] acc_mask
* Acceptable mask, if NULL default internal default mask
* will be used to check whether item fields are supported.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_ecpri(const struct rte_flow_item *item,
uint64_t item_flags,
uint64_t last_item,
uint16_t ether_type,
const struct rte_flow_item_ecpri *acc_mask,
struct rte_flow_error *error)
{
const struct rte_flow_item_ecpri *mask = item->mask;
const struct rte_flow_item_ecpri nic_mask = {
.hdr = {
.common = {
.u32 =
RTE_BE32(((const struct rte_ecpri_common_hdr) {
.type = 0xFF,
}).u32),
},
.dummy[0] = 0xFFFFFFFF,
},
};
const uint64_t outer_l2_vlan = (MLX5_FLOW_LAYER_OUTER_L2 |
MLX5_FLOW_LAYER_OUTER_VLAN);
struct rte_flow_item_ecpri mask_lo;
if (!(last_item & outer_l2_vlan) &&
last_item != MLX5_FLOW_LAYER_OUTER_L4_UDP)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"eCPRI can only follow L2/VLAN layer or UDP layer");
if ((last_item & outer_l2_vlan) && ether_type &&
ether_type != RTE_ETHER_TYPE_ECPRI)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"eCPRI cannot follow L2/VLAN layer which ether type is not 0xAEFE");
if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"eCPRI with tunnel is not supported right now");
if (item_flags & MLX5_FLOW_LAYER_OUTER_L3)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple L3 layers not supported");
else if (item_flags & MLX5_FLOW_LAYER_OUTER_L4_TCP)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"eCPRI cannot coexist with a TCP layer");
/* In specification, eCPRI could be over UDP layer. */
else if (item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"eCPRI over UDP layer is not yet supported right now");
/* Mask for type field in common header could be zero. */
if (!mask)
mask = &rte_flow_item_ecpri_mask;
mask_lo.hdr.common.u32 = rte_be_to_cpu_32(mask->hdr.common.u32);
/* Input mask is in big-endian format. */
if (mask_lo.hdr.common.type != 0 && mask_lo.hdr.common.type != 0xff)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
"partial mask is not supported for protocol");
else if (mask_lo.hdr.common.type == 0 && mask->hdr.dummy[0] != 0)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
"message header mask must be after a type mask");
return mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
acc_mask ? (const uint8_t *)acc_mask
: (const uint8_t *)&nic_mask,
sizeof(struct rte_flow_item_ecpri),
MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
}
/**
* Release resource related QUEUE/RSS action split.
*
* @param dev
* Pointer to Ethernet device.
* @param flow
* Flow to release id's from.
*/
static void
flow_mreg_split_qrss_release(struct rte_eth_dev *dev,
struct rte_flow *flow)
{
struct mlx5_priv *priv = dev->data->dev_private;
uint32_t handle_idx;
struct mlx5_flow_handle *dev_handle;
SILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW], flow->dev_handles,
handle_idx, dev_handle, next)
if (dev_handle->split_flow_id)
mlx5_ipool_free(priv->sh->ipool
[MLX5_IPOOL_RSS_EXPANTION_FLOW_ID],
dev_handle->split_flow_id);
}
static int
flow_null_validate(struct rte_eth_dev *dev __rte_unused,
const struct rte_flow_attr *attr __rte_unused,
const struct rte_flow_item items[] __rte_unused,
const struct rte_flow_action actions[] __rte_unused,
bool external __rte_unused,
int hairpin __rte_unused,
struct rte_flow_error *error)
{
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
}
static struct mlx5_flow *
flow_null_prepare(struct rte_eth_dev *dev __rte_unused,
const struct rte_flow_attr *attr __rte_unused,
const struct rte_flow_item items[] __rte_unused,
const struct rte_flow_action actions[] __rte_unused,
struct rte_flow_error *error)
{
rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
return NULL;
}
static int
flow_null_translate(struct rte_eth_dev *dev __rte_unused,
struct mlx5_flow *dev_flow __rte_unused,
const struct rte_flow_attr *attr __rte_unused,
const struct rte_flow_item items[] __rte_unused,
const struct rte_flow_action actions[] __rte_unused,
struct rte_flow_error *error)
{
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
}
static int
flow_null_apply(struct rte_eth_dev *dev __rte_unused,
struct rte_flow *flow __rte_unused,
struct rte_flow_error *error)
{
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
}
static void
flow_null_remove(struct rte_eth_dev *dev __rte_unused,
struct rte_flow *flow __rte_unused)
{
}
static void
flow_null_destroy(struct rte_eth_dev *dev __rte_unused,
struct rte_flow *flow __rte_unused)
{
}
static int
flow_null_query(struct rte_eth_dev *dev __rte_unused,
struct rte_flow *flow __rte_unused,
const struct rte_flow_action *actions __rte_unused,
void *data __rte_unused,
struct rte_flow_error *error)
{
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
}
static int
flow_null_sync_domain(struct rte_eth_dev *dev __rte_unused,
uint32_t domains __rte_unused,
uint32_t flags __rte_unused)
{
return 0;
}
/* Void driver to protect from null pointer reference. */
const struct mlx5_flow_driver_ops mlx5_flow_null_drv_ops = {
.validate = flow_null_validate,
.prepare = flow_null_prepare,
.translate = flow_null_translate,
.apply = flow_null_apply,
.remove = flow_null_remove,
.destroy = flow_null_destroy,
.query = flow_null_query,
.sync_domain = flow_null_sync_domain,
};
/**
* Select flow driver type according to flow attributes and device
* configuration.
*
* @param[in] dev
* Pointer to the dev structure.
* @param[in] attr
* Pointer to the flow attributes.
*
* @return
* flow driver type, MLX5_FLOW_TYPE_MAX otherwise.
*/
static enum mlx5_flow_drv_type
flow_get_drv_type(struct rte_eth_dev *dev, const struct rte_flow_attr *attr)
{
struct mlx5_priv *priv = dev->data->dev_private;
/* The OS can determine first a specific flow type (DV, VERBS) */
enum mlx5_flow_drv_type type = mlx5_flow_os_get_type();
if (type != MLX5_FLOW_TYPE_MAX)
return type;
/* If no OS specific type - continue with DV/VERBS selection */
if (attr->transfer && priv->config.dv_esw_en)
type = MLX5_FLOW_TYPE_DV;
if (!attr->transfer)
type = priv->config.dv_flow_en ? MLX5_FLOW_TYPE_DV :
MLX5_FLOW_TYPE_VERBS;
return type;
}
#define flow_get_drv_ops(type) flow_drv_ops[type]
/**
* Flow driver validation API. This abstracts calling driver specific functions.
* The type of flow driver is determined according to flow attributes.
*
* @param[in] dev
* Pointer to the dev structure.
* @param[in] attr
* Pointer to the flow attributes.
* @param[in] items
* Pointer to the list of items.
* @param[in] actions
* Pointer to the list of actions.
* @param[in] external
* This flow rule is created by request external to PMD.
* @param[in] hairpin
* Number of hairpin TX actions, 0 means classic flow.
* @param[out] error
* Pointer to the error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static inline int
flow_drv_validate(struct rte_eth_dev *dev,
const struct rte_flow_attr *attr,
const struct rte_flow_item items[],
const struct rte_flow_action actions[],
bool external, int hairpin, struct rte_flow_error *error)
{
const struct mlx5_flow_driver_ops *fops;
enum mlx5_flow_drv_type type = flow_get_drv_type(dev, attr);
fops = flow_get_drv_ops(type);
return fops->validate(dev, attr, items, actions, external,
hairpin, error);
}
/**
* Flow driver preparation API. This abstracts calling driver specific
* functions. Parent flow (rte_flow) should have driver type (drv_type). It
* calculates the size of memory required for device flow, allocates the memory,
* initializes the device flow and returns the pointer.
*
* @note
* This function initializes device flow structure such as dv or verbs in
* struct mlx5_flow. However, it is caller's responsibility to initialize the
* rest. For example, adding returning device flow to flow->dev_flow list and
* setting backward reference to the flow should be done out of this function.
* layers field is not filled either.
*
* @param[in] dev
* Pointer to the dev structure.
* @param[in] attr
* Pointer to the flow attributes.
* @param[in] items
* Pointer to the list of items.
* @param[in] actions
* Pointer to the list of actions.
* @param[in] flow_idx
* This memory pool index to the flow.
* @param[out] error
* Pointer to the error structure.
*
* @return
* Pointer to device flow on success, otherwise NULL and rte_errno is set.
*/
static inline struct mlx5_flow *
flow_drv_prepare(struct rte_eth_dev *dev,
const struct rte_flow *flow,
const struct rte_flow_attr *attr,
const struct rte_flow_item items[],
const struct rte_flow_action actions[],
uint32_t flow_idx,
struct rte_flow_error *error)
{
const struct mlx5_flow_driver_ops *fops;
enum mlx5_flow_drv_type type = flow->drv_type;
struct mlx5_flow *mlx5_flow = NULL;
MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
fops = flow_get_drv_ops(type);
mlx5_flow = fops->prepare(dev, attr, items, actions, error);
if (mlx5_flow)
mlx5_flow->flow_idx = flow_idx;
return mlx5_flow;
}
/**
* Flow driver translation API. This abstracts calling driver specific
* functions. Parent flow (rte_flow) should have driver type (drv_type). It
* translates a generic flow into a driver flow. flow_drv_prepare() must
* precede.
*
* @note
* dev_flow->layers could be filled as a result of parsing during translation
* if needed by flow_drv_apply(). dev_flow->flow->actions can also be filled
* if necessary. As a flow can have multiple dev_flows by RSS flow expansion,
* flow->actions could be overwritten even though all the expanded dev_flows
* have the same actions.
*
* @param[in] dev
* Pointer to the rte dev structure.
* @param[in, out] dev_flow
* Pointer to the mlx5 flow.
* @param[in] attr
* Pointer to the flow attributes.
* @param[in] items
* Pointer to the list of items.
* @param[in] actions
* Pointer to the list of actions.
* @param[out] error
* Pointer to the error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static inline int
flow_drv_translate(struct rte_eth_dev *dev, struct mlx5_flow *dev_flow,
const struct rte_flow_attr *attr,
const struct rte_flow_item items[],
const struct rte_flow_action actions[],
struct rte_flow_error *error)
{
const struct mlx5_flow_driver_ops *fops;
enum mlx5_flow_drv_type type = dev_flow->flow->drv_type;
MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
fops = flow_get_drv_ops(type);
return fops->translate(dev, dev_flow, attr, items, actions, error);
}
/**
* Flow driver apply API. This abstracts calling driver specific functions.
* Parent flow (rte_flow) should have driver type (drv_type). It applies
* translated driver flows on to device. flow_drv_translate() must precede.
*
* @param[in] dev
* Pointer to Ethernet device structure.
* @param[in, out] flow
* Pointer to flow structure.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static inline int
flow_drv_apply(struct rte_eth_dev *dev, struct rte_flow *flow,
struct rte_flow_error *error)
{
const struct mlx5_flow_driver_ops *fops;
enum mlx5_flow_drv_type type = flow->drv_type;
MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
fops = flow_get_drv_ops(type);
return fops->apply(dev, flow, error);
}
/**
* Flow driver destroy API. This abstracts calling driver specific functions.
* Parent flow (rte_flow) should have driver type (drv_type). It removes a flow
* on device and releases resources of the flow.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in, out] flow
* Pointer to flow structure.
*/
static inline void
flow_drv_destroy(struct rte_eth_dev *dev, struct rte_flow *flow)
{
const struct mlx5_flow_driver_ops *fops;
enum mlx5_flow_drv_type type = flow->drv_type;
flow_mreg_split_qrss_release(dev, flow);
MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
fops = flow_get_drv_ops(type);
fops->destroy(dev, flow);
}
/**
* Get RSS action from the action list.
*
* @param[in] actions
* Pointer to the list of actions.
*
* @return
* Pointer to the RSS action if exist, else return NULL.
*/
static const struct rte_flow_action_rss*
flow_get_rss_action(const struct rte_flow_action actions[])
{
const struct rte_flow_action_rss *rss = NULL;
for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
switch (actions->type) {
case RTE_FLOW_ACTION_TYPE_RSS:
rss = actions->conf;
break;
case RTE_FLOW_ACTION_TYPE_SAMPLE:
{
const struct rte_flow_action_sample *sample =
actions->conf;
const struct rte_flow_action *act = sample->actions;
for (; act->type != RTE_FLOW_ACTION_TYPE_END; act++)
if (act->type == RTE_FLOW_ACTION_TYPE_RSS)
rss = act->conf;
break;
}
default:
break;
}
}
return rss;
}
/**
* Get ASO age action by index.
*
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in] age_idx
* Index to the ASO age action.
*
* @return
* The specified ASO age action.
*/
struct mlx5_aso_age_action*
flow_aso_age_get_by_idx(struct rte_eth_dev *dev, uint32_t age_idx)
{
uint16_t pool_idx = age_idx & UINT16_MAX;
uint16_t offset = (age_idx >> 16) & UINT16_MAX;
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_aso_age_mng *mng = priv->sh->aso_age_mng;
struct mlx5_aso_age_pool *pool = mng->pools[pool_idx];
return &pool->actions[offset - 1];
}
/* maps shared action to translated non shared in some actions array */
struct mlx5_translated_shared_action {
struct rte_flow_shared_action *action; /**< Shared action */
int index; /**< Index in related array of rte_flow_action */
};
/**
* Translates actions of type RTE_FLOW_ACTION_TYPE_SHARED to related
* non shared action if translation possible.
* This functionality used to run same execution path for both shared & non
* shared actions on flow create. All necessary preparations for shared
* action handling should be preformed on *shared* actions list returned
* from this call.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] actions
* List of actions to translate.
* @param[out] shared
* List to store translated shared actions.
* @param[in, out] shared_n
* Size of *shared* array. On return should be updated with number of shared
* actions retrieved from the *actions* list.
* @param[out] translated_actions
* List of actions where all shared actions were translated to non shared
* if possible. NULL if no translation took place.
* @param[out] error
* Pointer to the error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
flow_shared_actions_translate(struct rte_eth_dev *dev,
const struct rte_flow_action actions[],
struct mlx5_translated_shared_action *shared,
int *shared_n,
struct rte_flow_action **translated_actions,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct rte_flow_action *translated = NULL;
size_t actions_size;
int n;
int copied_n = 0;
struct mlx5_translated_shared_action *shared_end = NULL;
for (n = 0; actions[n].type != RTE_FLOW_ACTION_TYPE_END; n++) {
if (actions[n].type != RTE_FLOW_ACTION_TYPE_SHARED)
continue;
if (copied_n == *shared_n) {
return rte_flow_error_set
(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_NUM,
NULL, "too many shared actions");
}
rte_memcpy(&shared[copied_n].action, &actions[n].conf,
sizeof(actions[n].conf));
shared[copied_n].index = n;
copied_n++;
}
n++;
*shared_n = copied_n;
if (!copied_n)
return 0;
actions_size = sizeof(struct rte_flow_action) * n;
translated = mlx5_malloc(MLX5_MEM_ZERO, actions_size, 0, SOCKET_ID_ANY);
if (!translated) {
rte_errno = ENOMEM;
return -ENOMEM;
}
memcpy(translated, actions, actions_size);
for (shared_end = shared + copied_n; shared < shared_end; shared++) {
struct mlx5_shared_action_rss *shared_rss;
uint32_t act_idx = (uint32_t)(uintptr_t)shared->action;
uint32_t type = act_idx >> MLX5_SHARED_ACTION_TYPE_OFFSET;
uint32_t idx = act_idx & ((1u << MLX5_SHARED_ACTION_TYPE_OFFSET)
- 1);
switch (type) {
case MLX5_SHARED_ACTION_TYPE_RSS:
shared_rss = mlx5_ipool_get
(priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS], idx);
translated[shared->index].type =
RTE_FLOW_ACTION_TYPE_RSS;
translated[shared->index].conf =
&shared_rss->origin;
break;
case MLX5_SHARED_ACTION_TYPE_AGE:
if (priv->sh->flow_hit_aso_en) {
translated[shared->index].type =
(enum rte_flow_action_type)
MLX5_RTE_FLOW_ACTION_TYPE_AGE;
translated[shared->index].conf =
(void *)(uintptr_t)idx;
break;
}
/* Fall-through */
default:
mlx5_free(translated);
return rte_flow_error_set
(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION,
NULL, "invalid shared action type");
}
}
*translated_actions = translated;
return 0;
}
/**
* Get Shared RSS action from the action list.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] shared
* Pointer to the list of actions.
* @param[in] shared_n
* Actions list length.
*
* @return
* The MLX5 RSS action ID if exists, otherwise return 0.
*/
static uint32_t
flow_get_shared_rss_action(struct rte_eth_dev *dev,
struct mlx5_translated_shared_action *shared,
int shared_n)
{
struct mlx5_translated_shared_action *shared_end;
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_shared_action_rss *shared_rss;
for (shared_end = shared + shared_n; shared < shared_end; shared++) {
uint32_t act_idx = (uint32_t)(uintptr_t)shared->action;
uint32_t type = act_idx >> MLX5_SHARED_ACTION_TYPE_OFFSET;
uint32_t idx = act_idx &
((1u << MLX5_SHARED_ACTION_TYPE_OFFSET) - 1);
switch (type) {
case MLX5_SHARED_ACTION_TYPE_RSS:
shared_rss = mlx5_ipool_get
(priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS],
idx);
__atomic_add_fetch(&shared_rss->refcnt, 1,
__ATOMIC_RELAXED);
return idx;
default:
break;
}
}
return 0;
}
static unsigned int
find_graph_root(const struct rte_flow_item pattern[], uint32_t rss_level)
{
const struct rte_flow_item *item;
unsigned int has_vlan = 0;
for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
if (item->type == RTE_FLOW_ITEM_TYPE_VLAN) {
has_vlan = 1;
break;
}
}
if (has_vlan)
return rss_level < 2 ? MLX5_EXPANSION_ROOT_ETH_VLAN :
MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN;
return rss_level < 2 ? MLX5_EXPANSION_ROOT :
MLX5_EXPANSION_ROOT_OUTER;
}
/**
* Get layer flags from the prefix flow.
*
* Some flows may be split to several subflows, the prefix subflow gets the
* match items and the suffix sub flow gets the actions.
* Some actions need the user defined match item flags to get the detail for
* the action.
* This function helps the suffix flow to get the item layer flags from prefix
* subflow.
*
* @param[in] dev_flow
* Pointer the created preifx subflow.
*
* @return
* The layers get from prefix subflow.
*/
static inline uint64_t
flow_get_prefix_layer_flags(struct mlx5_flow *dev_flow)
{
uint64_t layers = 0;
/*
* Layers bits could be localization, but usually the compiler will
* help to do the optimization work for source code.
* If no decap actions, use the layers directly.
*/
if (!(dev_flow->act_flags & MLX5_FLOW_ACTION_DECAP))
return dev_flow->handle->layers;
/* Convert L3 layers with decap action. */
if (dev_flow->handle->layers & MLX5_FLOW_LAYER_INNER_L3_IPV4)
layers |= MLX5_FLOW_LAYER_OUTER_L3_IPV4;
else if (dev_flow->handle->layers & MLX5_FLOW_LAYER_INNER_L3_IPV6)
layers |= MLX5_FLOW_LAYER_OUTER_L3_IPV6;
/* Convert L4 layers with decap action. */
if (dev_flow->handle->layers & MLX5_FLOW_LAYER_INNER_L4_TCP)
layers |= MLX5_FLOW_LAYER_OUTER_L4_TCP;
else if (dev_flow->handle->layers & MLX5_FLOW_LAYER_INNER_L4_UDP)
layers |= MLX5_FLOW_LAYER_OUTER_L4_UDP;
return layers;
}
/**
* Get metadata split action information.
*
* @param[in] actions
* Pointer to the list of actions.
* @param[out] qrss
* Pointer to the return pointer.
* @param[out] qrss_type
* Pointer to the action type to return. RTE_FLOW_ACTION_TYPE_END is returned
* if no QUEUE/RSS is found.
* @param[out] encap_idx
* Pointer to the index of the encap action if exists, otherwise the last
* action index.
*
* @return
* Total number of actions.
*/
static int
flow_parse_metadata_split_actions_info(const struct rte_flow_action actions[],
const struct rte_flow_action **qrss,
int *encap_idx)
{
const struct rte_flow_action_raw_encap *raw_encap;
int actions_n = 0;
int raw_decap_idx = -1;
*encap_idx = -1;
for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
switch (actions->type) {
case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
*encap_idx = actions_n;
break;
case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
raw_decap_idx = actions_n;
break;
case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
raw_encap = actions->conf;
if (raw_encap->size > MLX5_ENCAPSULATION_DECISION_SIZE)
*encap_idx = raw_decap_idx != -1 ?
raw_decap_idx : actions_n;
break;
case RTE_FLOW_ACTION_TYPE_QUEUE:
case RTE_FLOW_ACTION_TYPE_RSS:
*qrss = actions;
break;
default:
break;
}
actions_n++;
}
if (*encap_idx == -1)
*encap_idx = actions_n;
/* Count RTE_FLOW_ACTION_TYPE_END. */
return actions_n + 1;
}
/**
* Check meter action from the action list.
*
* @param[in] actions
* Pointer to the list of actions.
* @param[out] mtr
* Pointer to the meter exist flag.
*
* @return
* Total number of actions.
*/
static int
flow_check_meter_action(const struct rte_flow_action actions[], uint32_t *mtr)
{
int actions_n = 0;
MLX5_ASSERT(mtr);
*mtr = 0;
for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
switch (actions->type) {
case RTE_FLOW_ACTION_TYPE_METER:
*mtr = 1;
break;
default:
break;
}
actions_n++;
}
/* Count RTE_FLOW_ACTION_TYPE_END. */
return actions_n + 1;
}
/**
* Check if the flow should be split due to hairpin.
* The reason for the split is that in current HW we can't
* support encap and push-vlan on Rx, so if a flow contains
* these actions we move it to Tx.
*
* @param dev
* Pointer to Ethernet device.
* @param[in] attr
* Flow rule attributes.
* @param[in] actions
* Associated actions (list terminated by the END action).
*
* @return
* > 0 the number of actions and the flow should be split,
* 0 when no split required.
*/
static int
flow_check_hairpin_split(struct rte_eth_dev *dev,
const struct rte_flow_attr *attr,
const struct rte_flow_action actions[])
{
int queue_action = 0;
int action_n = 0;
int split = 0;
const struct rte_flow_action_queue *queue;
const struct rte_flow_action_rss *rss;
const struct rte_flow_action_raw_encap *raw_encap;
const struct rte_eth_hairpin_conf *conf;
if (!attr->ingress)
return 0;
for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
switch (actions->type) {
case RTE_FLOW_ACTION_TYPE_QUEUE:
queue = actions->conf;
if (queue == NULL)
return 0;
conf = mlx5_rxq_get_hairpin_conf(dev, queue->index);
if (conf == NULL || conf->tx_explicit != 0)
return 0;
queue_action = 1;
action_n++;
break;
case RTE_FLOW_ACTION_TYPE_RSS:
rss = actions->conf;
if (rss == NULL || rss->queue_num == 0)
return 0;
conf = mlx5_rxq_get_hairpin_conf(dev, rss->queue[0]);
if (conf == NULL || conf->tx_explicit != 0)
return 0;
queue_action = 1;
action_n++;
break;
case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP:
split++;
action_n++;
break;
case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
raw_encap = actions->conf;
if (raw_encap->size > MLX5_ENCAPSULATION_DECISION_SIZE)
split++;
action_n++;
break;
default:
action_n++;
break;
}
}
if (split && queue_action)
return action_n;
return 0;
}
/* Declare flow create/destroy prototype in advance. */
static uint32_t
flow_list_create(struct rte_eth_dev *dev, uint32_t *list,
const struct rte_flow_attr *attr,
const struct rte_flow_item items[],
const struct rte_flow_action actions[],
bool external, struct rte_flow_error *error);
static void
flow_list_destroy(struct rte_eth_dev *dev, uint32_t *list,
uint32_t flow_idx);
int
flow_dv_mreg_match_cb(struct mlx5_hlist *list __rte_unused,
struct mlx5_hlist_entry *entry,
uint64_t key, void *cb_ctx __rte_unused)
{
struct mlx5_flow_mreg_copy_resource *mcp_res =
container_of(entry, typeof(*mcp_res), hlist_ent);
return mcp_res->mark_id != key;
}
struct mlx5_hlist_entry *
flow_dv_mreg_create_cb(struct mlx5_hlist *list, uint64_t key,
void *cb_ctx)
{
struct rte_eth_dev *dev = list->ctx;
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_flow_cb_ctx *ctx = cb_ctx;
struct mlx5_flow_mreg_copy_resource *mcp_res;
struct rte_flow_error *error = ctx->error;
uint32_t idx = 0;
int ret;
uint32_t mark_id = key;
struct rte_flow_attr attr = {
.group = MLX5_FLOW_MREG_CP_TABLE_GROUP,
.ingress = 1,
};
struct mlx5_rte_flow_item_tag tag_spec = {
.data = mark_id,
};
struct rte_flow_item items[] = {
[1] = { .type = RTE_FLOW_ITEM_TYPE_END, },
};
struct rte_flow_action_mark ftag = {
.id = mark_id,
};
struct mlx5_flow_action_copy_mreg cp_mreg = {
.dst = REG_B,
.src = REG_NON,
};
struct rte_flow_action_jump jump = {
.group = MLX5_FLOW_MREG_ACT_TABLE_GROUP,
};
struct rte_flow_action actions[] = {
[3] = { .type = RTE_FLOW_ACTION_TYPE_END, },
};
/* Fill the register fileds in the flow. */
ret = mlx5_flow_get_reg_id(dev, MLX5_FLOW_MARK, 0, error);
if (ret < 0)
return NULL;
tag_spec.id = ret;
ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_RX, 0, error);
if (ret < 0)
return NULL;
cp_mreg.src = ret;
/* Provide the full width of FLAG specific value. */
if (mark_id == (priv->sh->dv_regc0_mask & MLX5_FLOW_MARK_DEFAULT))
tag_spec.data = MLX5_FLOW_MARK_DEFAULT;
/* Build a new flow. */
if (mark_id != MLX5_DEFAULT_COPY_ID) {
items[0] = (struct rte_flow_item){
.type = (enum rte_flow_item_type)
MLX5_RTE_FLOW_ITEM_TYPE_TAG,
.spec = &tag_spec,
};
items[1] = (struct rte_flow_item){
.type = RTE_FLOW_ITEM_TYPE_END,
};
actions[0] = (struct rte_flow_action){
.type = (enum rte_flow_action_type)
MLX5_RTE_FLOW_ACTION_TYPE_MARK,
.conf = &ftag,
};
actions[1] = (struct rte_flow_action){
.type = (enum rte_flow_action_type)
MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
.conf = &cp_mreg,
};
actions[2] = (struct rte_flow_action){
.type = RTE_FLOW_ACTION_TYPE_JUMP,
.conf = &jump,
};
actions[3] = (struct rte_flow_action){
.type = RTE_FLOW_ACTION_TYPE_END,
};
} else {
/* Default rule, wildcard match. */
attr.priority = MLX5_FLOW_LOWEST_PRIO_INDICATOR;
items[0] = (struct rte_flow_item){
.type = RTE_FLOW_ITEM_TYPE_END,
};
actions[0] = (struct rte_flow_action){
.type = (enum rte_flow_action_type)
MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
.conf = &cp_mreg,
};
actions[1] = (struct rte_flow_action){
.type = RTE_FLOW_ACTION_TYPE_JUMP,
.conf = &jump,
};
actions[2] = (struct rte_flow_action){
.type = RTE_FLOW_ACTION_TYPE_END,
};
}
/* Build a new entry. */
mcp_res = mlx5_ipool_zmalloc(priv->sh->ipool[MLX5_IPOOL_MCP], &idx);
if (!mcp_res) {
rte_errno = ENOMEM;
return NULL;
}
mcp_res->idx = idx;
mcp_res->mark_id = mark_id;
/*
* The copy Flows are not included in any list. There
* ones are referenced from other Flows and can not
* be applied, removed, deleted in ardbitrary order
* by list traversing.
*/
mcp_res->rix_flow = flow_list_create(dev, NULL, &attr, items,
actions, false, error);
if (!mcp_res->rix_flow) {
mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_MCP], idx);
return NULL;
}
return &mcp_res->hlist_ent;
}
/**
* Add a flow of copying flow metadata registers in RX_CP_TBL.
*
* As mark_id is unique, if there's already a registered flow for the mark_id,
* return by increasing the reference counter of the resource. Otherwise, create
* the resource (mcp_res) and flow.
*
* Flow looks like,
* - If ingress port is ANY and reg_c[1] is mark_id,
* flow_tag := mark_id, reg_b := reg_c[0] and jump to RX_ACT_TBL.
*
* For default flow (zero mark_id), flow is like,
* - If ingress port is ANY,
* reg_b := reg_c[0] and jump to RX_ACT_TBL.
*
* @param dev
* Pointer to Ethernet device.
* @param mark_id
* ID of MARK action, zero means default flow for META.
* @param[out] error
* Perform verbose error reporting if not NULL.
*
* @return
* Associated resource on success, NULL otherwise and rte_errno is set.
*/
static struct mlx5_flow_mreg_copy_resource *
flow_mreg_add_copy_action(struct rte_eth_dev *dev, uint32_t mark_id,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_hlist_entry *entry;
struct mlx5_flow_cb_ctx ctx = {
.dev = dev,
.error = error,
};
/* Check if already registered. */
MLX5_ASSERT(priv->mreg_cp_tbl);
entry = mlx5_hlist_register(priv->mreg_cp_tbl, mark_id, &ctx);
if (!entry)
return NULL;
return container_of(entry, struct mlx5_flow_mreg_copy_resource,
hlist_ent);
}
void
flow_dv_mreg_remove_cb(struct mlx5_hlist *list, struct mlx5_hlist_entry *entry)
{
struct mlx5_flow_mreg_copy_resource *mcp_res =
container_of(entry, typeof(*mcp_res), hlist_ent);
struct rte_eth_dev *dev = list->ctx;
struct mlx5_priv *priv = dev->data->dev_private;
MLX5_ASSERT(mcp_res->rix_flow);
flow_list_destroy(dev, NULL, mcp_res->rix_flow);
mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_MCP], mcp_res->idx);
}
/**
* Release flow in RX_CP_TBL.
*
* @param dev
* Pointer to Ethernet device.
* @flow
* Parent flow for wich copying is provided.
*/
static void
flow_mreg_del_copy_action(struct rte_eth_dev *dev,
struct rte_flow *flow)
{
struct mlx5_flow_mreg_copy_resource *mcp_res;
struct mlx5_priv *priv = dev->data->dev_private;
if (!flow->rix_mreg_copy)
return;
mcp_res = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_MCP],
flow->rix_mreg_copy);
if (!mcp_res || !priv->mreg_cp_tbl)
return;
MLX5_ASSERT(mcp_res->rix_flow);
mlx5_hlist_unregister(priv->mreg_cp_tbl, &mcp_res->hlist_ent);
flow->rix_mreg_copy = 0;
}
/**
* Remove the default copy action from RX_CP_TBL.
*
* This functions is called in the mlx5_dev_start(). No thread safe
* is guaranteed.
*
* @param dev
* Pointer to Ethernet device.
*/
static void
flow_mreg_del_default_copy_action(struct rte_eth_dev *dev)
{
struct mlx5_hlist_entry *entry;
struct mlx5_priv *priv = dev->data->dev_private;
/* Check if default flow is registered. */
if (!priv->mreg_cp_tbl)
return;
entry = mlx5_hlist_lookup(priv->mreg_cp_tbl,
MLX5_DEFAULT_COPY_ID, NULL);
if (!entry)
return;
mlx5_hlist_unregister(priv->mreg_cp_tbl, entry);
}
/**
* Add the default copy action in in RX_CP_TBL.
*
* This functions is called in the mlx5_dev_start(). No thread safe
* is guaranteed.
*
* @param dev
* Pointer to Ethernet device.
* @param[out] error
* Perform verbose error reporting if not NULL.
*
* @return
* 0 for success, negative value otherwise and rte_errno is set.
*/
static int
flow_mreg_add_default_copy_action(struct rte_eth_dev *dev,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_flow_mreg_copy_resource *mcp_res;
/* Check whether extensive metadata feature is engaged. */
if (!priv->config.dv_flow_en ||
priv->config.dv_xmeta_en == MLX5_XMETA_MODE_LEGACY ||
!mlx5_flow_ext_mreg_supported(dev) ||
!priv->sh->dv_regc0_mask)
return 0;
/*
* Add default mreg copy flow may be called multiple time, but
* only be called once in stop. Avoid register it twice.
*/
if (mlx5_hlist_lookup(priv->mreg_cp_tbl, MLX5_DEFAULT_COPY_ID, NULL))
return 0;
mcp_res = flow_mreg_add_copy_action(dev, MLX5_DEFAULT_COPY_ID, error);
if (!mcp_res)
return -rte_errno;
return 0;
}
/**
* Add a flow of copying flow metadata registers in RX_CP_TBL.
*
* All the flow having Q/RSS action should be split by
* flow_mreg_split_qrss_prep() to pass by RX_CP_TBL. A flow in the RX_CP_TBL
* performs the following,
* - CQE->flow_tag := reg_c[1] (MARK)
* - CQE->flow_table_metadata (reg_b) := reg_c[0] (META)
* As CQE's flow_tag is not a register, it can't be simply copied from reg_c[1]
* but there should be a flow per each MARK ID set by MARK action.
*
* For the aforementioned reason, if there's a MARK action in flow's action
* list, a corresponding flow should be added to the RX_CP_TBL in order to copy
* the MARK ID to CQE's flow_tag like,
* - If reg_c[1] is mark_id,
* flow_tag := mark_id, reg_b := reg_c[0] and jump to RX_ACT_TBL.
*
* For SET_META action which stores value in reg_c[0], as the destination is
* also a flow metadata register (reg_b), adding a default flow is enough. Zero
* MARK ID means the default flow. The default flow looks like,
* - For all flow, reg_b := reg_c[0] and jump to RX_ACT_TBL.
*
* @param dev
* Pointer to Ethernet device.
* @param flow
* Pointer to flow structure.
* @param[in] actions
* Pointer to the list of actions.
* @param[out] error
* Perform verbose error reporting if not NULL.
*
* @return
* 0 on success, negative value otherwise and rte_errno is set.
*/
static int
flow_mreg_update_copy_table(struct rte_eth_dev *dev,
struct rte_flow *flow,
const struct rte_flow_action *actions,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_dev_config *config = &priv->config;
struct mlx5_flow_mreg_copy_resource *mcp_res;
const struct rte_flow_action_mark *mark;
/* Check whether extensive metadata feature is engaged. */
if (!config->dv_flow_en ||
config->dv_xmeta_en == MLX5_XMETA_MODE_LEGACY ||
!mlx5_flow_ext_mreg_supported(dev) ||
!priv->sh->dv_regc0_mask)
return 0;
/* Find MARK action. */
for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
switch (actions->type) {
case RTE_FLOW_ACTION_TYPE_FLAG:
mcp_res = flow_mreg_add_copy_action
(dev, MLX5_FLOW_MARK_DEFAULT, error);
if (!mcp_res)
return -rte_errno;
flow->rix_mreg_copy = mcp_res->idx;
return 0;
case RTE_FLOW_ACTION_TYPE_MARK:
mark = (const struct rte_flow_action_mark *)
actions->conf;
mcp_res =
flow_mreg_add_copy_action(dev, mark->id, error);
if (!mcp_res)
return -rte_errno;
flow->rix_mreg_copy = mcp_res->idx;
return 0;
default:
break;
}
}
return 0;
}
#define MLX5_MAX_SPLIT_ACTIONS 24
#define MLX5_MAX_SPLIT_ITEMS 24
/**
* Split the hairpin flow.
* Since HW can't support encap and push-vlan on Rx, we move these
* actions to Tx.
* If the count action is after the encap then we also
* move the count action. in this case the count will also measure
* the outer bytes.
*
* @param dev
* Pointer to Ethernet device.
* @param[in] actions
* Associated actions (list terminated by the END action).
* @param[out] actions_rx
* Rx flow actions.
* @param[out] actions_tx
* Tx flow actions..
* @param[out] pattern_tx
* The pattern items for the Tx flow.
* @param[out] flow_id
* The flow ID connected to this flow.
*
* @return
* 0 on success.
*/
static int
flow_hairpin_split(struct rte_eth_dev *dev,
const struct rte_flow_action actions[],
struct rte_flow_action actions_rx[],
struct rte_flow_action actions_tx[],
struct rte_flow_item pattern_tx[],
uint32_t flow_id)
{
const struct rte_flow_action_raw_encap *raw_encap;
const struct rte_flow_action_raw_decap *raw_decap;
struct mlx5_rte_flow_action_set_tag *set_tag;
struct rte_flow_action *tag_action;
struct mlx5_rte_flow_item_tag *tag_item;
struct rte_flow_item *item;
char *addr;
int encap = 0;
for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
switch (actions->type) {
case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP:
rte_memcpy(actions_tx, actions,
sizeof(struct rte_flow_action));
actions_tx++;
break;
case RTE_FLOW_ACTION_TYPE_COUNT:
if (encap) {
rte_memcpy(actions_tx, actions,
sizeof(struct rte_flow_action));
actions_tx++;
} else {
rte_memcpy(actions_rx, actions,
sizeof(struct rte_flow_action));
actions_rx++;
}
break;
case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
raw_encap = actions->conf;
if (raw_encap->size > MLX5_ENCAPSULATION_DECISION_SIZE) {
memcpy(actions_tx, actions,
sizeof(struct rte_flow_action));
actions_tx++;
encap = 1;
} else {
rte_memcpy(actions_rx, actions,
sizeof(struct rte_flow_action));
actions_rx++;
}
break;
case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
raw_decap = actions->conf;
if (raw_decap->size < MLX5_ENCAPSULATION_DECISION_SIZE) {
memcpy(actions_tx, actions,
sizeof(struct rte_flow_action));
actions_tx++;
} else {
rte_memcpy(actions_rx, actions,
sizeof(struct rte_flow_action));
actions_rx++;
}
break;
default:
rte_memcpy(actions_rx, actions,
sizeof(struct rte_flow_action));
actions_rx++;
break;
}
}
/* Add set meta action and end action for the Rx flow. */
tag_action = actions_rx;
tag_action->type = (enum rte_flow_action_type)
MLX5_RTE_FLOW_ACTION_TYPE_TAG;
actions_rx++;
rte_memcpy(actions_rx, actions, sizeof(struct rte_flow_action));
actions_rx++;
set_tag = (void *)actions_rx;
set_tag->id = mlx5_flow_get_reg_id(dev, MLX5_HAIRPIN_RX, 0, NULL);
MLX5_ASSERT(set_tag->id > REG_NON);
set_tag->data = flow_id;
tag_action->conf = set_tag;
/* Create Tx item list. */
rte_memcpy(actions_tx, actions, sizeof(struct rte_flow_action));
addr = (void *)&pattern_tx[2];
item = pattern_tx;
item->type = (enum rte_flow_item_type)
MLX5_RTE_FLOW_ITEM_TYPE_TAG;
tag_item = (void *)addr;
tag_item->data = flow_id;
tag_item->id = mlx5_flow_get_reg_id(dev, MLX5_HAIRPIN_TX, 0, NULL);
MLX5_ASSERT(set_tag->id > REG_NON);
item->spec = tag_item;
addr += sizeof(struct mlx5_rte_flow_item_tag);
tag_item = (void *)addr;
tag_item->data = UINT32_MAX;
tag_item->id = UINT16_MAX;
item->mask = tag_item;
item->last = NULL;
item++;
item->type = RTE_FLOW_ITEM_TYPE_END;
return 0;
}
/**
* The last stage of splitting chain, just creates the subflow
* without any modification.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] flow
* Parent flow structure pointer.
* @param[in, out] sub_flow
* Pointer to return the created subflow, may be NULL.
* @param[in] attr
* Flow rule attributes.
* @param[in] items
* Pattern specification (list terminated by the END pattern item).
* @param[in] actions
* Associated actions (list terminated by the END action).
* @param[in] flow_split_info
* Pointer to flow split info structure.
* @param[out] error
* Perform verbose error reporting if not NULL.
* @return
* 0 on success, negative value otherwise
*/
static int
flow_create_split_inner(struct rte_eth_dev *dev,
struct rte_flow *flow,
struct mlx5_flow **sub_flow,
const struct rte_flow_attr *attr,
const struct rte_flow_item items[],
const struct rte_flow_action actions[],
struct mlx5_flow_split_info *flow_split_info,
struct rte_flow_error *error)
{
struct mlx5_flow *dev_flow;
dev_flow = flow_drv_prepare(dev, flow, attr, items, actions,
flow_split_info->flow_idx, error);
if (!dev_flow)
return -rte_errno;
dev_flow->flow = flow;
dev_flow->external = flow_split_info->external;
dev_flow->skip_scale = flow_split_info->skip_scale;
/* Subflow object was created, we must include one in the list. */
SILIST_INSERT(&flow->dev_handles, dev_flow->handle_idx,
dev_flow->handle, next);
/*
* If dev_flow is as one of the suffix flow, some actions in suffix
* flow may need some user defined item layer flags, and pass the
* Metadate rxq mark flag to suffix flow as well.
*/
if (flow_split_info->prefix_layers)
dev_flow->handle->layers = flow_split_info->prefix_layers;
if (flow_split_info->prefix_mark)
dev_flow->handle->mark = 1;
if (sub_flow)
*sub_flow = dev_flow;
return flow_drv_translate(dev, dev_flow, attr, items, actions, error);
}
/**
* Split the meter flow.
*
* As meter flow will split to three sub flow, other than meter
* action, the other actions make sense to only meter accepts
* the packet. If it need to be dropped, no other additional
* actions should be take.
*
* One kind of special action which decapsulates the L3 tunnel
* header will be in the prefix sub flow, as not to take the
* L3 tunnel header into account.
*
* @param dev
* Pointer to Ethernet device.
* @param[in] items
* Pattern specification (list terminated by the END pattern item).
* @param[out] sfx_items
* Suffix flow match items (list terminated by the END pattern item).
* @param[in] actions
* Associated actions (list terminated by the END action).
* @param[out] actions_sfx
* Suffix flow actions.
* @param[out] actions_pre
* Prefix flow actions.
* @param[out] pattern_sfx
* The pattern items for the suffix flow.
* @param[out] tag_sfx
* Pointer to suffix flow tag.
*
* @return
* 0 on success.
*/
static int
flow_meter_split_prep(struct rte_eth_dev *dev,
const struct rte_flow_item items[],
struct rte_flow_item sfx_items[],
const struct rte_flow_action actions[],
struct rte_flow_action actions_sfx[],
struct rte_flow_action actions_pre[])
{
struct mlx5_priv *priv = dev->data->dev_private;
struct rte_flow_action *tag_action = NULL;
struct rte_flow_item *tag_item;
struct mlx5_rte_flow_action_set_tag *set_tag;
struct rte_flow_error error;
const struct rte_flow_action_raw_encap *raw_encap;
const struct rte_flow_action_raw_decap *raw_decap;
struct mlx5_rte_flow_item_tag *tag_spec;
struct mlx5_rte_flow_item_tag *tag_mask;
uint32_t tag_id = 0;
bool copy_vlan = false;
/* Prepare the actions for prefix and suffix flow. */
for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
struct rte_flow_action **action_cur = NULL;
switch (actions->type) {
case RTE_FLOW_ACTION_TYPE_METER:
/* Add the extra tag action first. */
tag_action = actions_pre;
tag_action->type = (enum rte_flow_action_type)
MLX5_RTE_FLOW_ACTION_TYPE_TAG;
actions_pre++;
action_cur = &actions_pre;
break;
case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP:
case RTE_FLOW_ACTION_TYPE_NVGRE_DECAP:
action_cur = &actions_pre;
break;
case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
raw_encap = actions->conf;
if (raw_encap->size < MLX5_ENCAPSULATION_DECISION_SIZE)
action_cur = &actions_pre;
break;
case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
raw_decap = actions->conf;
if (raw_decap->size > MLX5_ENCAPSULATION_DECISION_SIZE)
action_cur = &actions_pre;
break;
case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
copy_vlan = true;
break;
default:
break;
}
if (!action_cur)
action_cur = &actions_sfx;
memcpy(*action_cur, actions, sizeof(struct rte_flow_action));
(*action_cur)++;
}
/* Add end action to the actions. */
actions_sfx->type = RTE_FLOW_ACTION_TYPE_END;
actions_pre->type = RTE_FLOW_ACTION_TYPE_END;
actions_pre++;
/* Set the tag. */
set_tag = (void *)actions_pre;
set_tag->id = mlx5_flow_get_reg_id(dev, MLX5_MTR_SFX, 0, &error);
mlx5_ipool_malloc(priv->sh->ipool[MLX5_IPOOL_RSS_EXPANTION_FLOW_ID],
&tag_id);
if (tag_id >= (1 << (sizeof(tag_id) * 8 - MLX5_MTR_COLOR_BITS))) {
DRV_LOG(ERR, "Port %u meter flow id exceed max limit.",
dev->data->port_id);
mlx5_ipool_free(priv->sh->ipool
[MLX5_IPOOL_RSS_EXPANTION_FLOW_ID], tag_id);
return 0;
} else if (!tag_id) {
return 0;
}
set_tag->data = tag_id << MLX5_MTR_COLOR_BITS;
assert(tag_action);
tag_action->conf = set_tag;
/* Prepare the suffix subflow items. */
tag_item = sfx_items++;
for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) {
int item_type = items->type;
switch (item_type) {
case RTE_FLOW_ITEM_TYPE_PORT_ID:
memcpy(sfx_items, items, sizeof(*sfx_items));
sfx_items++;
break;
case RTE_FLOW_ITEM_TYPE_VLAN:
if (copy_vlan) {
memcpy(sfx_items, items, sizeof(*sfx_items));
/*
* Convert to internal match item, it is used
* for vlan push and set vid.
*/
sfx_items->type = (enum rte_flow_item_type)
MLX5_RTE_FLOW_ITEM_TYPE_VLAN;
sfx_items++;
}
break;
default:
break;
}
}
sfx_items->type = RTE_FLOW_ITEM_TYPE_END;
sfx_items++;
tag_spec = (struct mlx5_rte_flow_item_tag *)sfx_items;
tag_spec->data = tag_id << MLX5_MTR_COLOR_BITS;
tag_spec->id = mlx5_flow_get_reg_id(dev, MLX5_MTR_SFX, 0, &error);
tag_mask = tag_spec + 1;
tag_mask->data = 0xffffff00;
tag_item->type = (enum rte_flow_item_type)
MLX5_RTE_FLOW_ITEM_TYPE_TAG;
tag_item->spec = tag_spec;
tag_item->last = NULL;
tag_item->mask = tag_mask;
return tag_id;
}
/**
* Split action list having QUEUE/RSS for metadata register copy.
*
* Once Q/RSS action is detected in user's action list, the flow action
* should be split in order to copy metadata registers, which will happen in
* RX_CP_TBL like,
* - CQE->flow_tag := reg_c[1] (MARK)
* - CQE->flow_table_metadata (reg_b) := reg_c[0] (META)
* The Q/RSS action will be performed on RX_ACT_TBL after passing by RX_CP_TBL.
* This is because the last action of each flow must be a terminal action
* (QUEUE, RSS or DROP).
*
* Flow ID must be allocated to identify actions in the RX_ACT_TBL and it is
* stored and kept in the mlx5_flow structure per each sub_flow.
*
* The Q/RSS action is replaced with,
* - SET_TAG, setting the allocated flow ID to reg_c[2].
* And the following JUMP action is added at the end,
* - JUMP, to RX_CP_TBL.
*
* A flow to perform remained Q/RSS action will be created in RX_ACT_TBL by
* flow_create_split_metadata() routine. The flow will look like,
* - If flow ID matches (reg_c[2]), perform Q/RSS.
*
* @param dev
* Pointer to Ethernet device.
* @param[out] split_actions
* Pointer to store split actions to jump to CP_TBL.
* @param[in] actions
* Pointer to the list of original flow actions.
* @param[in] qrss
* Pointer to the Q/RSS action.
* @param[in] actions_n
* Number of original actions.
* @param[out] error
* Perform verbose error reporting if not NULL.
*
* @return
* non-zero unique flow_id on success, otherwise 0 and
* error/rte_error are set.
*/
static uint32_t
flow_mreg_split_qrss_prep(struct rte_eth_dev *dev,
struct rte_flow_action *split_actions,
const struct rte_flow_action *actions,
const struct rte_flow_action *qrss,
int actions_n, struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_rte_flow_action_set_tag *set_tag;
struct rte_flow_action_jump *jump;
const int qrss_idx = qrss - actions;
uint32_t flow_id = 0;
int ret = 0;
/*
* Given actions will be split
* - Replace QUEUE/RSS action with SET_TAG to set flow ID.
* - Add jump to mreg CP_TBL.
* As a result, there will be one more action.
*/
++actions_n;
memcpy(split_actions, actions, sizeof(*split_actions) * actions_n);
set_tag = (void *)(split_actions + actions_n);
/*
* If tag action is not set to void(it means we are not the meter
* suffix flow), add the tag action. Since meter suffix flow already
* has the tag added.
*/
if (split_actions[qrss_idx].type != RTE_FLOW_ACTION_TYPE_VOID) {
/*
* Allocate the new subflow ID. This one is unique within
* device and not shared with representors. Otherwise,
* we would have to resolve multi-thread access synch
* issue. Each flow on the shared device is appended
* with source vport identifier, so the resulting
* flows will be unique in the shared (by master and
* representors) domain even if they have coinciding
* IDs.
*/
mlx5_ipool_malloc(priv->sh->ipool
[MLX5_IPOOL_RSS_EXPANTION_FLOW_ID], &flow_id);
if (!flow_id)
return rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_ACTION,
NULL, "can't allocate id "
"for split Q/RSS subflow");
/* Internal SET_TAG action to set flow ID. */
*set_tag = (struct mlx5_rte_flow_action_set_tag){
.data = flow_id,
};
ret = mlx5_flow_get_reg_id(dev, MLX5_COPY_MARK, 0, error);
if (ret < 0)
return ret;
set_tag->id = ret;
/* Construct new actions array. */
/* Replace QUEUE/RSS action. */
split_actions[qrss_idx] = (struct rte_flow_action){
.type = (enum rte_flow_action_type)
MLX5_RTE_FLOW_ACTION_TYPE_TAG,
.conf = set_tag,
};
}
/* JUMP action to jump to mreg copy table (CP_TBL). */
jump = (void *)(set_tag + 1);
*jump = (struct rte_flow_action_jump){
.group = MLX5_FLOW_MREG_CP_TABLE_GROUP,
};
split_actions[actions_n - 2] = (struct rte_flow_action){
.type = RTE_FLOW_ACTION_TYPE_JUMP,
.conf = jump,
};
split_actions[actions_n - 1] = (struct rte_flow_action){
.type = RTE_FLOW_ACTION_TYPE_END,
};
return flow_id;
}
/**
* Extend the given action list for Tx metadata copy.
*
* Copy the given action list to the ext_actions and add flow metadata register
* copy action in order to copy reg_a set by WQE to reg_c[0].
*
* @param[out] ext_actions
* Pointer to the extended action list.
* @param[in] actions
* Pointer to the list of actions.
* @param[in] actions_n
* Number of actions in the list.
* @param[out] error
* Perform verbose error reporting if not NULL.
* @param[in] encap_idx
* The encap action inndex.
*
* @return
* 0 on success, negative value otherwise
*/
static int
flow_mreg_tx_copy_prep(struct rte_eth_dev *dev,
struct rte_flow_action *ext_actions,
const struct rte_flow_action *actions,
int actions_n, struct rte_flow_error *error,
int encap_idx)
{
struct mlx5_flow_action_copy_mreg *cp_mreg =
(struct mlx5_flow_action_copy_mreg *)
(ext_actions + actions_n + 1);
int ret;
ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_RX, 0, error);
if (ret < 0)
return ret;
cp_mreg->dst = ret;
ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_TX, 0, error);
if (ret < 0)
return ret;
cp_mreg->src = ret;
if (encap_idx != 0)
memcpy(ext_actions, actions, sizeof(*ext_actions) * encap_idx);
if (encap_idx == actions_n - 1) {
ext_actions[actions_n - 1] = (struct rte_flow_action){
.type = (enum rte_flow_action_type)
MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
.conf = cp_mreg,
};
ext_actions[actions_n] = (struct rte_flow_action){
.type = RTE_FLOW_ACTION_TYPE_END,
};
} else {
ext_actions[encap_idx] = (struct rte_flow_action){
.type = (enum rte_flow_action_type)
MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
.conf = cp_mreg,
};
memcpy(ext_actions + encap_idx + 1, actions + encap_idx,
sizeof(*ext_actions) * (actions_n - encap_idx));
}
return 0;
}
/**
* Check the match action from the action list.
*
* @param[in] actions
* Pointer to the list of actions.
* @param[in] attr
* Flow rule attributes.
* @param[in] action
* The action to be check if exist.
* @param[out] match_action_pos
* Pointer to the position of the matched action if exists, otherwise is -1.
* @param[out] qrss_action_pos
* Pointer to the position of the Queue/RSS action if exists, otherwise is -1.
* @param[out] modify_after_mirror
* Pointer to the flag of modify action after FDB mirroring.
*
* @return
* > 0 the total number of actions.
* 0 if not found match action in action list.
*/
static int
flow_check_match_action(const struct rte_flow_action actions[],
const struct rte_flow_attr *attr,
enum rte_flow_action_type action,
int *match_action_pos, int *qrss_action_pos,
int *modify_after_mirror)
{
const struct rte_flow_action_sample *sample;
int actions_n = 0;
uint32_t ratio = 0;
int sub_type = 0;
int flag = 0;
int fdb_mirror = 0;
*match_action_pos = -1;
*qrss_action_pos = -1;
for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
if (actions->type == action) {
flag = 1;
*match_action_pos = actions_n;
}
switch (actions->type) {
case RTE_FLOW_ACTION_TYPE_QUEUE:
case RTE_FLOW_ACTION_TYPE_RSS:
*qrss_action_pos = actions_n;
break;
case RTE_FLOW_ACTION_TYPE_SAMPLE:
sample = actions->conf;
ratio = sample->ratio;
sub_type = ((const struct rte_flow_action *)
(sample->actions))->type;
if (ratio == 1 && attr->transfer)
fdb_mirror = 1;
break;
case RTE_FLOW_ACTION_TYPE_SET_MAC_SRC:
case RTE_FLOW_ACTION_TYPE_SET_MAC_DST:
case RTE_FLOW_ACTION_TYPE_SET_IPV4_SRC:
case RTE_FLOW_ACTION_TYPE_SET_IPV4_DST:
case RTE_FLOW_ACTION_TYPE_SET_IPV6_SRC:
case RTE_FLOW_ACTION_TYPE_SET_IPV6_DST:
case RTE_FLOW_ACTION_TYPE_SET_TP_SRC:
case RTE_FLOW_ACTION_TYPE_SET_TP_DST:
case RTE_FLOW_ACTION_TYPE_DEC_TTL:
case RTE_FLOW_ACTION_TYPE_SET_TTL:
case RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ:
case RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ:
case RTE_FLOW_ACTION_TYPE_INC_TCP_ACK:
case RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK:
case RTE_FLOW_ACTION_TYPE_SET_IPV4_DSCP:
case RTE_FLOW_ACTION_TYPE_SET_IPV6_DSCP:
case RTE_FLOW_ACTION_TYPE_FLAG:
case RTE_FLOW_ACTION_TYPE_MARK:
case RTE_FLOW_ACTION_TYPE_SET_META:
case RTE_FLOW_ACTION_TYPE_SET_TAG:
if (fdb_mirror)
*modify_after_mirror = 1;
break;
default:
break;
}
actions_n++;
}
if (flag && fdb_mirror && !*modify_after_mirror) {
/* FDB mirroring uses the destination array to implement
* instead of FLOW_SAMPLER object.
*/
if (sub_type != RTE_FLOW_ACTION_TYPE_END)
flag = 0;
}
/* Count RTE_FLOW_ACTION_TYPE_END. */
return flag ? actions_n + 1 : 0;
}
#define SAMPLE_SUFFIX_ITEM 2
/**
* Split the sample flow.
*
* As sample flow will split to two sub flow, sample flow with
* sample action, the other actions will move to new suffix flow.
*
* Also add unique tag id with tag action in the sample flow,
* the same tag id will be as match in the suffix flow.
*
* @param dev
* Pointer to Ethernet device.
* @param[in] add_tag
* Add extra tag action flag.
* @param[out] sfx_items
* Suffix flow match items (list terminated by the END pattern item).
* @param[in] actions
* Associated actions (list terminated by the END action).
* @param[out] actions_sfx
* Suffix flow actions.
* @param[out] actions_pre
* Prefix flow actions.
* @param[in] actions_n
* The total number of actions.
* @param[in] sample_action_pos
* The sample action position.
* @param[in] qrss_action_pos
* The Queue/RSS action position.
* @param[in] jump_table
* Add extra jump action flag.
* @param[out] error
* Perform verbose error reporting if not NULL.
*
* @return
* 0 on success, or unique flow_id, a negative errno value
* otherwise and rte_errno is set.
*/
static int
flow_sample_split_prep(struct rte_eth_dev *dev,
int add_tag,
struct rte_flow_item sfx_items[],
const struct rte_flow_action actions[],
struct rte_flow_action actions_sfx[],
struct rte_flow_action actions_pre[],
int actions_n,
int sample_action_pos,
int qrss_action_pos,
int jump_table,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_rte_flow_action_set_tag *set_tag;
struct mlx5_rte_flow_item_tag *tag_spec;
struct mlx5_rte_flow_item_tag *tag_mask;
struct rte_flow_action_jump *jump_action;
uint32_t tag_id = 0;
int index;
int append_index = 0;
int ret;
if (sample_action_pos < 0)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
NULL, "invalid position of sample "
"action in list");
/* Prepare the actions for prefix and suffix flow. */
if (qrss_action_pos >= 0 && qrss_action_pos < sample_action_pos) {
index = qrss_action_pos;
/* Put the preceding the Queue/RSS action into prefix flow. */
if (index != 0)
memcpy(actions_pre, actions,
sizeof(struct rte_flow_action) * index);
/* Put others preceding the sample action into prefix flow. */
if (sample_action_pos > index + 1)
memcpy(actions_pre + index, actions + index + 1,
sizeof(struct rte_flow_action) *
(sample_action_pos - index - 1));
index = sample_action_pos - 1;
/* Put Queue/RSS action into Suffix flow. */
memcpy(actions_sfx, actions + qrss_action_pos,
sizeof(struct rte_flow_action));
actions_sfx++;
} else {
index = sample_action_pos;
if (index != 0)
memcpy(actions_pre, actions,
sizeof(struct rte_flow_action) * index);
}
/* For CX5, add an extra tag action for NIC-RX and E-Switch ingress.
* For CX6DX and above, metadata registers Cx preserve their value,
* add an extra tag action for NIC-RX and E-Switch Domain.
*/
if (add_tag) {
/* Prepare the prefix tag action. */
append_index++;
set_tag = (void *)(actions_pre + actions_n + append_index);
ret = mlx5_flow_get_reg_id(dev, MLX5_APP_TAG, 0, error);
if (ret < 0)
return ret;
set_tag->id = ret;
mlx5_ipool_malloc(priv->sh->ipool
[MLX5_IPOOL_RSS_EXPANTION_FLOW_ID], &tag_id);
set_tag->data = tag_id;
/* Prepare the suffix subflow items. */
tag_spec = (void *)(sfx_items + SAMPLE_SUFFIX_ITEM);
tag_spec->data = tag_id;
tag_spec->id = set_tag->id;
tag_mask = tag_spec + 1;
tag_mask->data = UINT32_MAX;
sfx_items[0] = (struct rte_flow_item){
.type = (enum rte_flow_item_type)
MLX5_RTE_FLOW_ITEM_TYPE_TAG,
.spec = tag_spec,
.last = NULL,
.mask = tag_mask,
};
sfx_items[1] = (struct rte_flow_item){
.type = (enum rte_flow_item_type)
RTE_FLOW_ITEM_TYPE_END,
};
/* Prepare the tag action in prefix subflow. */
actions_pre[index++] =
(struct rte_flow_action){
.type = (enum rte_flow_action_type)
MLX5_RTE_FLOW_ACTION_TYPE_TAG,
.conf = set_tag,
};
}
memcpy(actions_pre + index, actions + sample_action_pos,
sizeof(struct rte_flow_action));
index += 1;
/* For the modify action after the sample action in E-Switch mirroring,
* Add the extra jump action in prefix subflow and jump into the next
* table, then do the modify action in the new table.
*/
if (jump_table) {
/* Prepare the prefix jump action. */
append_index++;
jump_action = (void *)(actions_pre + actions_n + append_index);
jump_action->group = jump_table;
actions_pre[index++] =
(struct rte_flow_action){
.type = (enum rte_flow_action_type)
RTE_FLOW_ACTION_TYPE_JUMP,
.conf = jump_action,
};
}
actions_pre[index] = (struct rte_flow_action){
.type = (enum rte_flow_action_type)
RTE_FLOW_ACTION_TYPE_END,
};
/* Put the actions after sample into Suffix flow. */
memcpy(actions_sfx, actions + sample_action_pos + 1,
sizeof(struct rte_flow_action) *
(actions_n - sample_action_pos - 1));
return tag_id;
}
/**
* The splitting for metadata feature.
*
* - Q/RSS action on NIC Rx should be split in order to pass by
* the mreg copy table (RX_CP_TBL) and then it jumps to the
* action table (RX_ACT_TBL) which has the split Q/RSS action.
*
* - All the actions on NIC Tx should have a mreg copy action to
* copy reg_a from WQE to reg_c[0].
*
* @param dev
* Pointer to Ethernet device.
* @param[in] flow
* Parent flow structure pointer.
* @param[in] attr
* Flow rule attributes.
* @param[in] items
* Pattern specification (list terminated by the END pattern item).
* @param[in] actions
* Associated actions (list terminated by the END action).
* @param[in] flow_split_info
* Pointer to flow split info structure.
* @param[out] error
* Perform verbose error reporting if not NULL.
* @return
* 0 on success, negative value otherwise
*/
static int
flow_create_split_metadata(struct rte_eth_dev *dev,
struct rte_flow *flow,
const struct rte_flow_attr *attr,
const struct rte_flow_item items[],
const struct rte_flow_action actions[],
struct mlx5_flow_split_info *flow_split_info,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_dev_config *config = &priv->config;
const struct rte_flow_action *qrss = NULL;
struct rte_flow_action *ext_actions = NULL;
struct mlx5_flow *dev_flow = NULL;
uint32_t qrss_id = 0;
int mtr_sfx = 0;
size_t act_size;
int actions_n;
int encap_idx;
int ret;
/* Check whether extensive metadata feature is engaged. */
if (!config->dv_flow_en ||
config->dv_xmeta_en == MLX5_XMETA_MODE_LEGACY ||
!mlx5_flow_ext_mreg_supported(dev))
return flow_create_split_inner(dev, flow, NULL, attr, items,
actions, flow_split_info, error);
actions_n = flow_parse_metadata_split_actions_info(actions, &qrss,
&encap_idx);
if (qrss) {
/* Exclude hairpin flows from splitting. */
if (qrss->type == RTE_FLOW_ACTION_TYPE_QUEUE) {
const struct rte_flow_action_queue *queue;
queue = qrss->conf;
if (mlx5_rxq_get_type(dev, queue->index) ==
MLX5_RXQ_TYPE_HAIRPIN)
qrss = NULL;
} else if (qrss->type == RTE_FLOW_ACTION_TYPE_RSS) {
const struct rte_flow_action_rss *rss;
rss = qrss->conf;
if (mlx5_rxq_get_type(dev, rss->queue[0]) ==
MLX5_RXQ_TYPE_HAIRPIN)
qrss = NULL;
}
}
if (qrss) {
/* Check if it is in meter suffix table. */
mtr_sfx = attr->group == (attr->transfer ?
(MLX5_FLOW_TABLE_LEVEL_SUFFIX - 1) :
MLX5_FLOW_TABLE_LEVEL_SUFFIX);
/*
* Q/RSS action on NIC Rx should be split in order to pass by
* the mreg copy table (RX_CP_TBL) and then it jumps to the
* action table (RX_ACT_TBL) which has the split Q/RSS action.
*/
act_size = sizeof(struct rte_flow_action) * (actions_n + 1) +
sizeof(struct rte_flow_action_set_tag) +
sizeof(struct rte_flow_action_jump);
ext_actions = mlx5_malloc(MLX5_MEM_ZERO, act_size, 0,
SOCKET_ID_ANY);
if (!ext_actions)
return rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_ACTION,
NULL, "no memory to split "
"metadata flow");
/*
* If we are the suffix flow of meter, tag already exist.
* Set the tag action to void.
*/
if (mtr_sfx)
ext_actions[qrss - actions].type =
RTE_FLOW_ACTION_TYPE_VOID;
else
ext_actions[qrss - actions].type =
(enum rte_flow_action_type)
MLX5_RTE_FLOW_ACTION_TYPE_TAG;
/*
* Create the new actions list with removed Q/RSS action
* and appended set tag and jump to register copy table
* (RX_CP_TBL). We should preallocate unique tag ID here
* in advance, because it is needed for set tag action.
*/
qrss_id = flow_mreg_split_qrss_prep(dev, ext_actions, actions,
qrss, actions_n, error);
if (!mtr_sfx && !qrss_id) {
ret = -rte_errno;
goto exit;
}
} else if (attr->egress && !attr->transfer) {
/*
* All the actions on NIC Tx should have a metadata register
* copy action to copy reg_a from WQE to reg_c[meta]
*/
act_size = sizeof(struct rte_flow_action) * (actions_n + 1) +
sizeof(struct mlx5_flow_action_copy_mreg);
ext_actions = mlx5_malloc(MLX5_MEM_ZERO, act_size, 0,
SOCKET_ID_ANY);
if (!ext_actions)
return rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_ACTION,
NULL, "no memory to split "
"metadata flow");
/* Create the action list appended with copy register. */
ret = flow_mreg_tx_copy_prep(dev, ext_actions, actions,
actions_n, error, encap_idx);
if (ret < 0)
goto exit;
}
/* Add the unmodified original or prefix subflow. */
ret = flow_create_split_inner(dev, flow, &dev_flow, attr,
items, ext_actions ? ext_actions :
actions, flow_split_info, error);
if (ret < 0)
goto exit;
MLX5_ASSERT(dev_flow);
if (qrss) {
const struct rte_flow_attr q_attr = {
.group = MLX5_FLOW_MREG_ACT_TABLE_GROUP,
.ingress = 1,
};
/* Internal PMD action to set register. */
struct mlx5_rte_flow_item_tag q_tag_spec = {
.data = qrss_id,
.id = REG_NON,
};
struct rte_flow_item q_items[] = {
{
.type = (enum rte_flow_item_type)
MLX5_RTE_FLOW_ITEM_TYPE_TAG,
.spec = &q_tag_spec,
.last = NULL,
.mask = NULL,
},
{
.type = RTE_FLOW_ITEM_TYPE_END,
},
};
struct rte_flow_action q_actions[] = {
{
.type = qrss->type,
.conf = qrss->conf,
},
{
.type = RTE_FLOW_ACTION_TYPE_END,
},
};
uint64_t layers = flow_get_prefix_layer_flags(dev_flow);
/*
* Configure the tag item only if there is no meter subflow.
* Since tag is already marked in the meter suffix subflow
* we can just use the meter suffix items as is.
*/
if (qrss_id) {
/* Not meter subflow. */
MLX5_ASSERT(!mtr_sfx);
/*
* Put unique id in prefix flow due to it is destroyed
* after suffix flow and id will be freed after there
* is no actual flows with this id and identifier
* reallocation becomes possible (for example, for
* other flows in other threads).
*/
dev_flow->handle->split_flow_id = qrss_id;
ret = mlx5_flow_get_reg_id(dev, MLX5_COPY_MARK, 0,
error);
if (ret < 0)
goto exit;
q_tag_spec.id = ret;
}
dev_flow = NULL;
/* Add suffix subflow to execute Q/RSS. */
flow_split_info->prefix_layers = layers;
flow_split_info->prefix_mark = 0;
ret = flow_create_split_inner(dev, flow, &dev_flow,
&q_attr, mtr_sfx ? items :
q_items, q_actions,
flow_split_info, error);
if (ret < 0)
goto exit;
/* qrss ID should be freed if failed. */
qrss_id = 0;
MLX5_ASSERT(dev_flow);
}
exit:
/*
* We do not destroy the partially created sub_flows in case of error.
* These ones are included into parent flow list and will be destroyed
* by flow_drv_destroy.
*/
mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_RSS_EXPANTION_FLOW_ID],
qrss_id);
mlx5_free(ext_actions);
return ret;
}
/**
* The splitting for meter feature.
*
* - The meter flow will be split to two flows as prefix and
* suffix flow. The packets make sense only it pass the prefix
* meter action.
*
* - Reg_C_5 is used for the packet to match betweend prefix and
* suffix flow.
*
* @param dev
* Pointer to Ethernet device.
* @param[in] flow
* Parent flow structure pointer.
* @param[in] attr
* Flow rule attributes.
* @param[in] items
* Pattern specification (list terminated by the END pattern item).
* @param[in] actions
* Associated actions (list terminated by the END action).
* @param[in] flow_split_info
* Pointer to flow split info structure.
* @param[out] error
* Perform verbose error reporting if not NULL.
* @return
* 0 on success, negative value otherwise
*/
static int
flow_create_split_meter(struct rte_eth_dev *dev,
struct rte_flow *flow,
const struct rte_flow_attr *attr,
const struct rte_flow_item items[],
const struct rte_flow_action actions[],
struct mlx5_flow_split_info *flow_split_info,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct rte_flow_action *sfx_actions = NULL;
struct rte_flow_action *pre_actions = NULL;
struct rte_flow_item *sfx_items = NULL;
struct mlx5_flow *dev_flow = NULL;
struct rte_flow_attr sfx_attr = *attr;
uint32_t mtr = 0;
uint32_t mtr_tag_id = 0;
size_t act_size;
size_t item_size;
int actions_n = 0;
int ret;
if (priv->mtr_en)
actions_n = flow_check_meter_action(actions, &mtr);
if (mtr) {
/* The five prefix actions: meter, decap, encap, tag, end. */
act_size = sizeof(struct rte_flow_action) * (actions_n + 5) +
sizeof(struct mlx5_rte_flow_action_set_tag);
/* tag, vlan, port id, end. */
#define METER_SUFFIX_ITEM 4
item_size = sizeof(struct rte_flow_item) * METER_SUFFIX_ITEM +
sizeof(struct mlx5_rte_flow_item_tag) * 2;
sfx_actions = mlx5_malloc(MLX5_MEM_ZERO, (act_size + item_size),
0, SOCKET_ID_ANY);
if (!sfx_actions)
return rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_ACTION,
NULL, "no memory to split "
"meter flow");
sfx_items = (struct rte_flow_item *)((char *)sfx_actions +
act_size);
pre_actions = sfx_actions + actions_n;
mtr_tag_id = flow_meter_split_prep(dev, items, sfx_items,
actions, sfx_actions,
pre_actions);
if (!mtr_tag_id) {
ret = -rte_errno;
goto exit;
}
/* Add the prefix subflow. */
flow_split_info->prefix_mark = 0;
ret = flow_create_split_inner(dev, flow, &dev_flow,
attr, items, pre_actions,
flow_split_info, error);
if (ret) {
ret = -rte_errno;
goto exit;
}
dev_flow->handle->split_flow_id = mtr_tag_id;
/* Setting the sfx group atrr. */
sfx_attr.group = sfx_attr.transfer ?
(MLX5_FLOW_TABLE_LEVEL_SUFFIX - 1) :
MLX5_FLOW_TABLE_LEVEL_SUFFIX;
flow_split_info->prefix_layers =
flow_get_prefix_layer_flags(dev_flow);
flow_split_info->prefix_mark = dev_flow->handle->mark;
}
/* Add the prefix subflow. */
ret = flow_create_split_metadata(dev, flow,
&sfx_attr, sfx_items ?
sfx_items : items,
sfx_actions ? sfx_actions : actions,
flow_split_info, error);
exit:
if (sfx_actions)
mlx5_free(sfx_actions);
return ret;
}
/**
* The splitting for sample feature.
*
* Once Sample action is detected in the action list, the flow actions should
* be split into prefix sub flow and suffix sub flow.
*
* The original items remain in the prefix sub flow, all actions preceding the
* sample action and the sample action itself will be copied to the prefix
* sub flow, the actions following the sample action will be copied to the
* suffix sub flow, Queue action always be located in the suffix sub flow.
*
* In order to make the packet from prefix sub flow matches with suffix sub
* flow, an extra tag action be added into prefix sub flow, and the suffix sub
* flow uses tag item with the unique flow id.
*
* @param dev
* Pointer to Ethernet device.
* @param[in] flow
* Parent flow structure pointer.
* @param[in] attr
* Flow rule attributes.
* @param[in] items
* Pattern specification (list terminated by the END pattern item).
* @param[in] actions
* Associated actions (list terminated by the END action).
* @param[in] flow_split_info
* Pointer to flow split info structure.
* @param[out] error
* Perform verbose error reporting if not NULL.
* @return
* 0 on success, negative value otherwise
*/
static int
flow_create_split_sample(struct rte_eth_dev *dev,
struct rte_flow *flow,
const struct rte_flow_attr *attr,
const struct rte_flow_item items[],
const struct rte_flow_action actions[],
struct mlx5_flow_split_info *flow_split_info,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct rte_flow_action *sfx_actions = NULL;
struct rte_flow_action *pre_actions = NULL;
struct rte_flow_item *sfx_items = NULL;
struct mlx5_flow *dev_flow = NULL;
struct rte_flow_attr sfx_attr = *attr;
#ifdef HAVE_IBV_FLOW_DV_SUPPORT
struct mlx5_flow_dv_sample_resource *sample_res;
struct mlx5_flow_tbl_data_entry *sfx_tbl_data;
struct mlx5_flow_tbl_resource *sfx_tbl;
#endif
size_t act_size;
size_t item_size;
uint32_t fdb_tx = 0;
int32_t tag_id = 0;
int actions_n = 0;
int sample_action_pos;
int qrss_action_pos;
int add_tag = 0;
int modify_after_mirror = 0;
uint16_t jump_table = 0;
const uint32_t next_ft_step = 1;
int ret = 0;
if (priv->sampler_en)
actions_n = flow_check_match_action(actions, attr,
RTE_FLOW_ACTION_TYPE_SAMPLE,
&sample_action_pos, &qrss_action_pos,
&modify_after_mirror);
if (actions_n) {
/* The prefix actions must includes sample, tag, end. */
act_size = sizeof(struct rte_flow_action) * (actions_n * 2 + 1)
+ sizeof(struct mlx5_rte_flow_action_set_tag);
item_size = sizeof(struct rte_flow_item) * SAMPLE_SUFFIX_ITEM +
sizeof(struct mlx5_rte_flow_item_tag) * 2;
sfx_actions = mlx5_malloc(MLX5_MEM_ZERO, (act_size +
item_size), 0, SOCKET_ID_ANY);
if (!sfx_actions)
return rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_ACTION,
NULL, "no memory to split "
"sample flow");
/* The representor_id is -1 for uplink. */
fdb_tx = (attr->transfer && priv->representor_id != -1);
/*
* When reg_c_preserve is set, metadata registers Cx preserve
* their value even through packet duplication.
*/
add_tag = (!fdb_tx || priv->config.hca_attr.reg_c_preserve);
if (add_tag)
sfx_items = (struct rte_flow_item *)((char *)sfx_actions
+ act_size);
if (modify_after_mirror)
jump_table = attr->group * MLX5_FLOW_TABLE_FACTOR +
next_ft_step;
pre_actions = sfx_actions + actions_n;
tag_id = flow_sample_split_prep(dev, add_tag, sfx_items,
actions, sfx_actions,
pre_actions, actions_n,
sample_action_pos,
qrss_action_pos, jump_table,
error);
if (tag_id < 0 || (add_tag && !tag_id)) {
ret = -rte_errno;
goto exit;
}
if (modify_after_mirror)
flow_split_info->skip_scale =
1 << MLX5_SCALE_JUMP_FLOW_GROUP_BIT;
/* Add the prefix subflow. */
ret = flow_create_split_inner(dev, flow, &dev_flow, attr,
items, pre_actions,
flow_split_info, error);
if (ret) {
ret = -rte_errno;
goto exit;
}
dev_flow->handle->split_flow_id = tag_id;
#ifdef HAVE_IBV_FLOW_DV_SUPPORT
if (!modify_after_mirror) {
/* Set the sfx group attr. */
sample_res = (struct mlx5_flow_dv_sample_resource *)
dev_flow->dv.sample_res;
sfx_tbl = (struct mlx5_flow_tbl_resource *)
sample_res->normal_path_tbl;
sfx_tbl_data = container_of(sfx_tbl,
struct mlx5_flow_tbl_data_entry,
tbl);
sfx_attr.group = sfx_attr.transfer ?
(sfx_tbl_data->table_id - 1) :
sfx_tbl_data->table_id;
} else {
MLX5_ASSERT(attr->transfer);
sfx_attr.group = jump_table;
}
flow_split_info->prefix_layers =
flow_get_prefix_layer_flags(dev_flow);
flow_split_info->prefix_mark = dev_flow->handle->mark;
/* Suffix group level already be scaled with factor, set
* MLX5_SCALE_FLOW_GROUP_BIT of skip_scale to 1 to avoid scale
* again in translation.
*/
flow_split_info->skip_scale = 1 << MLX5_SCALE_FLOW_GROUP_BIT;
#endif
}
/* Add the suffix subflow. */
ret = flow_create_split_meter(dev, flow, &sfx_attr,
sfx_items ? sfx_items : items,
sfx_actions ? sfx_actions : actions,
flow_split_info, error);
exit:
if (sfx_actions)
mlx5_free(sfx_actions);
return ret;
}
/**
* Split the flow to subflow set. The splitters might be linked
* in the chain, like this:
* flow_create_split_outer() calls:
* flow_create_split_meter() calls:
* flow_create_split_metadata(meter_subflow_0) calls:
* flow_create_split_inner(metadata_subflow_0)
* flow_create_split_inner(metadata_subflow_1)
* flow_create_split_inner(metadata_subflow_2)
* flow_create_split_metadata(meter_subflow_1) calls:
* flow_create_split_inner(metadata_subflow_0)
* flow_create_split_inner(metadata_subflow_1)
* flow_create_split_inner(metadata_subflow_2)
*
* This provide flexible way to add new levels of flow splitting.
* The all of successfully created subflows are included to the
* parent flow dev_flow list.
*
* @param dev
* Pointer to Ethernet device.
* @param[in] flow
* Parent flow structure pointer.
* @param[in] attr
* Flow rule attributes.
* @param[in] items
* Pattern specification (list terminated by the END pattern item).
* @param[in] actions
* Associated actions (list terminated by the END action).
* @param[in] flow_split_info
* Pointer to flow split info structure.
* @param[out] error
* Perform verbose error reporting if not NULL.
* @return
* 0 on success, negative value otherwise
*/
static int
flow_create_split_outer(struct rte_eth_dev *dev,
struct rte_flow *flow,
const struct rte_flow_attr *attr,
const struct rte_flow_item items[],
const struct rte_flow_action actions[],
struct mlx5_flow_split_info *flow_split_info,
struct rte_flow_error *error)
{
int ret;
ret = flow_create_split_sample(dev, flow, attr, items,
actions, flow_split_info, error);
MLX5_ASSERT(ret <= 0);
return ret;
}
static struct mlx5_flow_tunnel *
flow_tunnel_from_rule(struct rte_eth_dev *dev,
const struct rte_flow_attr *attr,
const struct rte_flow_item items[],
const struct rte_flow_action actions[])
{
struct mlx5_flow_tunnel *tunnel;
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
if (is_flow_tunnel_match_rule(dev, attr, items, actions))
tunnel = (struct mlx5_flow_tunnel *)items[0].spec;
else if (is_flow_tunnel_steer_rule(dev, attr, items, actions))
tunnel = (struct mlx5_flow_tunnel *)actions[0].conf;
else
tunnel = NULL;
#pragma GCC diagnostic pop
return tunnel;
}
/**
* Adjust flow RSS workspace if needed.
*
* @param wks
* Pointer to thread flow work space.
* @param rss_desc
* Pointer to RSS descriptor.
* @param[in] nrssq_num
* New RSS queue number.
*
* @return
* 0 on success, -1 otherwise and rte_errno is set.
*/
static int
flow_rss_workspace_adjust(struct mlx5_flow_workspace *wks,
struct mlx5_flow_rss_desc *rss_desc,
uint32_t nrssq_num)
{
if (likely(nrssq_num <= wks->rssq_num))
return 0;
rss_desc->queue = realloc(rss_desc->queue,
sizeof(*rss_desc->queue) * RTE_ALIGN(nrssq_num, 2));
if (!rss_desc->queue) {
rte_errno = ENOMEM;
return -1;
}
wks->rssq_num = RTE_ALIGN(nrssq_num, 2);
return 0;
}
/**
* Create a flow and add it to @p list.
*
* @param dev
* Pointer to Ethernet device.
* @param list
* Pointer to a TAILQ flow list. If this parameter NULL,
* no list insertion occurred, flow is just created,
* this is caller's responsibility to track the
* created flow.
* @param[in] attr
* Flow rule attributes.
* @param[in] items
* Pattern specification (list terminated by the END pattern item).
* @param[in] actions
* Associated actions (list terminated by the END action).
* @param[in] external
* This flow rule is created by request external to PMD.
* @param[out] error
* Perform verbose error reporting if not NULL.
*
* @return
* A flow index on success, 0 otherwise and rte_errno is set.
*/
static uint32_t
flow_list_create(struct rte_eth_dev *dev, uint32_t *list,
const struct rte_flow_attr *attr,
const struct rte_flow_item items[],
const struct rte_flow_action original_actions[],
bool external, struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct rte_flow *flow = NULL;
struct mlx5_flow *dev_flow;
const struct rte_flow_action_rss *rss = NULL;
struct mlx5_translated_shared_action
shared_actions[MLX5_MAX_SHARED_ACTIONS];
int shared_actions_n = MLX5_MAX_SHARED_ACTIONS;
union {
struct mlx5_flow_expand_rss buf;
uint8_t buffer[2048];
} expand_buffer;
union {
struct rte_flow_action actions[MLX5_MAX_SPLIT_ACTIONS];
uint8_t buffer[2048];
} actions_rx;
union {
struct rte_flow_action actions[MLX5_MAX_SPLIT_ACTIONS];
uint8_t buffer[2048];
} actions_hairpin_tx;
union {
struct rte_flow_item items[MLX5_MAX_SPLIT_ITEMS];
uint8_t buffer[2048];
} items_tx;
struct mlx5_flow_expand_rss *buf = &expand_buffer.buf;
struct mlx5_flow_rss_desc *rss_desc;
const struct rte_flow_action *p_actions_rx;
uint32_t i;
uint32_t idx = 0;
int hairpin_flow;
struct rte_flow_attr attr_tx = { .priority = 0 };
const struct rte_flow_action *actions;
struct rte_flow_action *translated_actions = NULL;
struct mlx5_flow_tunnel *tunnel;
struct tunnel_default_miss_ctx default_miss_ctx = { 0, };
struct mlx5_flow_workspace *wks = mlx5_flow_push_thread_workspace();
struct mlx5_flow_split_info flow_split_info = {
.external = !!external,
.skip_scale = 0,
.flow_idx = 0,
.prefix_mark = 0,
.prefix_layers = 0
};
int ret;
MLX5_ASSERT(wks);
rss_desc = &wks->rss_desc;
ret = flow_shared_actions_translate(dev, original_actions,
shared_actions,
&shared_actions_n,
&translated_actions, error);
if (ret < 0) {
MLX5_ASSERT(translated_actions == NULL);
return 0;
}
actions = translated_actions ? translated_actions : original_actions;
p_actions_rx = actions;
hairpin_flow = flow_check_hairpin_split(dev, attr, actions);
ret = flow_drv_validate(dev, attr, items, p_actions_rx,
external, hairpin_flow, error);
if (ret < 0)
goto error_before_hairpin_split;
flow = mlx5_ipool_zmalloc(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], &idx);
if (!flow) {
rte_errno = ENOMEM;
goto error_before_hairpin_split;
}
if (hairpin_flow > 0) {
if (hairpin_flow > MLX5_MAX_SPLIT_ACTIONS) {
rte_errno = EINVAL;
goto error_before_hairpin_split;
}
flow_hairpin_split(dev, actions, actions_rx.actions,
actions_hairpin_tx.actions, items_tx.items,
idx);
p_actions_rx = actions_rx.actions;
}
flow_split_info.flow_idx = idx;
flow->drv_type = flow_get_drv_type(dev, attr);
MLX5_ASSERT(flow->drv_type > MLX5_FLOW_TYPE_MIN &&
flow->drv_type < MLX5_FLOW_TYPE_MAX);
memset(rss_desc, 0, offsetof(struct mlx5_flow_rss_desc, queue));
/* RSS Action only works on NIC RX domain */
if (attr->ingress && !attr->transfer)
rss = flow_get_rss_action(p_actions_rx);
if (rss) {
if (flow_rss_workspace_adjust(wks, rss_desc, rss->queue_num))
return 0;
/*
* The following information is required by
* mlx5_flow_hashfields_adjust() in advance.
*/
rss_desc->level = rss->level;
/* RSS type 0 indicates default RSS type (ETH_RSS_IP). */
rss_desc->types = !rss->types ? ETH_RSS_IP : rss->types;
}
flow->dev_handles = 0;
if (rss && rss->types) {
unsigned int graph_root;
graph_root = find_graph_root(items, rss->level);
ret = mlx5_flow_expand_rss(buf, sizeof(expand_buffer.buffer),
items, rss->types,
mlx5_support_expansion, graph_root);
MLX5_ASSERT(ret > 0 &&
(unsigned int)ret < sizeof(expand_buffer.buffer));
} else {
buf->entries = 1;
buf->entry[0].pattern = (void *)(uintptr_t)items;
}
rss_desc->shared_rss = flow_get_shared_rss_action(dev, shared_actions,
shared_actions_n);
for (i = 0; i < buf->entries; ++i) {
/* Initialize flow split data. */
flow_split_info.prefix_layers = 0;
flow_split_info.prefix_mark = 0;
flow_split_info.skip_scale = 0;
/*
* The splitter may create multiple dev_flows,
* depending on configuration. In the simplest
* case it just creates unmodified original flow.
*/
ret = flow_create_split_outer(dev, flow, attr,
buf->entry[i].pattern,
p_actions_rx, &flow_split_info,
error);
if (ret < 0)
goto error;
if (is_flow_tunnel_steer_rule(dev, attr,
buf->entry[i].pattern,
p_actions_rx)) {
ret = flow_tunnel_add_default_miss(dev, flow, attr,
p_actions_rx,
idx,
&default_miss_ctx,
error);
if (ret < 0) {
mlx5_free(default_miss_ctx.queue);
goto error;
}
}
}
/* Create the tx flow. */
if (hairpin_flow) {
attr_tx.group = MLX5_HAIRPIN_TX_TABLE;
attr_tx.ingress = 0;
attr_tx.egress = 1;
dev_flow = flow_drv_prepare(dev, flow, &attr_tx, items_tx.items,
actions_hairpin_tx.actions,
idx, error);
if (!dev_flow)
goto error;
dev_flow->flow = flow;
dev_flow->external = 0;
SILIST_INSERT(&flow->dev_handles, dev_flow->handle_idx,
dev_flow->handle, next);
ret = flow_drv_translate(dev, dev_flow, &attr_tx,
items_tx.items,
actions_hairpin_tx.actions, error);
if (ret < 0)
goto error;
}
/*
* Update the metadata register copy table. If extensive
* metadata feature is enabled and registers are supported
* we might create the extra rte_flow for each unique
* MARK/FLAG action ID.
*
* The table is updated for ingress Flows only, because
* the egress Flows belong to the different device and
* copy table should be updated in peer NIC Rx domain.
*/
if (attr->ingress &&
(external || attr->group != MLX5_FLOW_MREG_CP_TABLE_GROUP)) {
ret = flow_mreg_update_copy_table(dev, flow, actions, error);
if (ret)
goto error;
}
/*
* If the flow is external (from application) OR device is started,
* OR mreg discover, then apply immediately.
*/
if (external || dev->data->dev_started ||
(attr->group == MLX5_FLOW_MREG_CP_TABLE_GROUP &&
attr->priority == MLX5_FLOW_LOWEST_PRIO_INDICATOR)) {
ret = flow_drv_apply(dev, flow, error);
if (ret < 0)
goto error;
}
if (list) {
rte_spinlock_lock(&priv->flow_list_lock);
ILIST_INSERT(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], list, idx,
flow, next);
rte_spinlock_unlock(&priv->flow_list_lock);
}
flow_rxq_flags_set(dev, flow);
rte_free(translated_actions);
tunnel = flow_tunnel_from_rule(dev, attr, items, actions);
if (tunnel) {
flow->tunnel = 1;
flow->tunnel_id = tunnel->tunnel_id;
__atomic_add_fetch(&tunnel->refctn, 1, __ATOMIC_RELAXED);
mlx5_free(default_miss_ctx.queue);
}
mlx5_flow_pop_thread_workspace();
return idx;
error:
MLX5_ASSERT(flow);
ret = rte_errno; /* Save rte_errno before cleanup. */
flow_mreg_del_copy_action(dev, flow);
flow_drv_destroy(dev, flow);
if (rss_desc->shared_rss)
__atomic_sub_fetch(&((struct mlx5_shared_action_rss *)
mlx5_ipool_get
(priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS],
rss_desc->shared_rss))->refcnt, 1, __ATOMIC_RELAXED);
mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], idx);
rte_errno = ret; /* Restore rte_errno. */
ret = rte_errno;
rte_errno = ret;
mlx5_flow_pop_thread_workspace();
error_before_hairpin_split:
rte_free(translated_actions);
return 0;
}
/**
* Create a dedicated flow rule on e-switch table 0 (root table), to direct all
* incoming packets to table 1.
*
* Other flow rules, requested for group n, will be created in
* e-switch table n+1.
* Jump action to e-switch group n will be created to group n+1.
*
* Used when working in switchdev mode, to utilise advantages of table 1
* and above.
*
* @param dev
* Pointer to Ethernet device.
*
* @return
* Pointer to flow on success, NULL otherwise and rte_errno is set.
*/
struct rte_flow *
mlx5_flow_create_esw_table_zero_flow(struct rte_eth_dev *dev)
{
const struct rte_flow_attr attr = {
.group = 0,
.priority = 0,
.ingress = 1,
.egress = 0,
.transfer = 1,
};
const struct rte_flow_item pattern = {
.type = RTE_FLOW_ITEM_TYPE_END,
};
struct rte_flow_action_jump jump = {
.group = 1,
};
const struct rte_flow_action actions[] = {
{
.type = RTE_FLOW_ACTION_TYPE_JUMP,
.conf = &jump,
},
{
.type = RTE_FLOW_ACTION_TYPE_END,
},
};
struct mlx5_priv *priv = dev->data->dev_private;
struct rte_flow_error error;
return (void *)(uintptr_t)flow_list_create(dev, &priv->ctrl_flows,
&attr, &pattern,
actions, false, &error);
}
/**
* Validate a flow supported by the NIC.
*
* @see rte_flow_validate()
* @see rte_flow_ops
*/
int
mlx5_flow_validate(struct rte_eth_dev *dev,
const struct rte_flow_attr *attr,
const struct rte_flow_item items[],
const struct rte_flow_action original_actions[],
struct rte_flow_error *error)
{
int hairpin_flow;
struct mlx5_translated_shared_action
shared_actions[MLX5_MAX_SHARED_ACTIONS];
int shared_actions_n = MLX5_MAX_SHARED_ACTIONS;
const struct rte_flow_action *actions;
struct rte_flow_action *translated_actions = NULL;
int ret = flow_shared_actions_translate(dev, original_actions,
shared_actions,
&shared_actions_n,
&translated_actions, error);
if (ret)
return ret;
actions = translated_actions ? translated_actions : original_actions;
hairpin_flow = flow_check_hairpin_split(dev, attr, actions);
ret = flow_drv_validate(dev, attr, items, actions,
true, hairpin_flow, error);
rte_free(translated_actions);
return ret;
}
/**
* Create a flow.
*
* @see rte_flow_create()
* @see rte_flow_ops
*/
struct rte_flow *
mlx5_flow_create(struct rte_eth_dev *dev,
const struct rte_flow_attr *attr,
const struct rte_flow_item items[],
const struct rte_flow_action actions[],
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
/*
* If the device is not started yet, it is not allowed to created a
* flow from application. PMD default flows and traffic control flows
* are not affected.
*/
if (unlikely(!dev->data->dev_started)) {
DRV_LOG(DEBUG, "port %u is not started when "
"inserting a flow", dev->data->port_id);
rte_flow_error_set(error, ENODEV,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL,
"port not started");
return NULL;
}
return (void *)(uintptr_t)flow_list_create(dev, &priv->flows,
attr, items, actions, true, error);
}
/**
* Destroy a flow in a list.
*
* @param dev
* Pointer to Ethernet device.
* @param list
* Pointer to the Indexed flow list. If this parameter NULL,
* there is no flow removal from the list. Be noted that as
* flow is add to the indexed list, memory of the indexed
* list points to maybe changed as flow destroyed.
* @param[in] flow_idx
* Index of flow to destroy.
*/
static void
flow_list_destroy(struct rte_eth_dev *dev, uint32_t *list,
uint32_t flow_idx)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct rte_flow *flow = mlx5_ipool_get(priv->sh->ipool
[MLX5_IPOOL_RTE_FLOW], flow_idx);
if (!flow)
return;
/*
* Update RX queue flags only if port is started, otherwise it is
* already clean.
*/
if (dev->data->dev_started)
flow_rxq_flags_trim(dev, flow);
flow_drv_destroy(dev, flow);
if (list) {
rte_spinlock_lock(&priv->flow_list_lock);
ILIST_REMOVE(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], list,
flow_idx, flow, next);
rte_spinlock_unlock(&priv->flow_list_lock);
}
if (flow->tunnel) {
struct mlx5_flow_tunnel *tunnel;
tunnel = mlx5_find_tunnel_id(dev, flow->tunnel_id);
RTE_VERIFY(tunnel);
if (!__atomic_sub_fetch(&tunnel->refctn, 1, __ATOMIC_RELAXED))
mlx5_flow_tunnel_free(dev, tunnel);
}
flow_mreg_del_copy_action(dev, flow);
mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], flow_idx);
}
/**
* Destroy all flows.
*
* @param dev
* Pointer to Ethernet device.
* @param list
* Pointer to the Indexed flow list.
* @param active
* If flushing is called avtively.
*/
void
mlx5_flow_list_flush(struct rte_eth_dev *dev, uint32_t *list, bool active)
{
uint32_t num_flushed = 0;
while (*list) {
flow_list_destroy(dev, list, *list);
num_flushed++;
}
if (active) {
DRV_LOG(INFO, "port %u: %u flows flushed before stopping",
dev->data->port_id, num_flushed);
}
}
/**
* Stop all default actions for flows.
*
* @param dev
* Pointer to Ethernet device.
*/
void
mlx5_flow_stop_default(struct rte_eth_dev *dev)
{
flow_mreg_del_default_copy_action(dev);
flow_rxq_flags_clear(dev);
}
/**
* Start all default actions for flows.
*
* @param dev
* Pointer to Ethernet device.
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_start_default(struct rte_eth_dev *dev)
{
struct rte_flow_error error;
/* Make sure default copy action (reg_c[0] -> reg_b) is created. */
return flow_mreg_add_default_copy_action(dev, &error);
}
/**
* Release key of thread specific flow workspace data.
*/
void
flow_release_workspace(void *data)
{
struct mlx5_flow_workspace *wks = data;
struct mlx5_flow_workspace *next;
while (wks) {
next = wks->next;
free(wks->rss_desc.queue);
free(wks);
wks = next;
}
}
/**
* Get thread specific current flow workspace.
*
* @return pointer to thread specific flow workspace data, NULL on error.
*/
struct mlx5_flow_workspace*
mlx5_flow_get_thread_workspace(void)
{
struct mlx5_flow_workspace *data;
data = mlx5_flow_os_get_specific_workspace();
MLX5_ASSERT(data && data->inuse);
if (!data || !data->inuse)
DRV_LOG(ERR, "flow workspace not initialized.");
return data;
}
/**
* Allocate and init new flow workspace.
*
* @return pointer to flow workspace data, NULL on error.
*/
static struct mlx5_flow_workspace*
flow_alloc_thread_workspace(void)
{
struct mlx5_flow_workspace *data = calloc(1, sizeof(*data));
if (!data) {
DRV_LOG(ERR, "Failed to allocate flow workspace "
"memory.");
return NULL;
}
data->rss_desc.queue = calloc(1,
sizeof(uint16_t) * MLX5_RSSQ_DEFAULT_NUM);
if (!data->rss_desc.queue)
goto err;
data->rssq_num = MLX5_RSSQ_DEFAULT_NUM;
return data;
err:
if (data->rss_desc.queue)
free(data->rss_desc.queue);
free(data);
return NULL;
}
/**
* Get new thread specific flow workspace.
*
* If current workspace inuse, create new one and set as current.
*
* @return pointer to thread specific flow workspace data, NULL on error.
*/
static struct mlx5_flow_workspace*
mlx5_flow_push_thread_workspace(void)
{
struct mlx5_flow_workspace *curr;
struct mlx5_flow_workspace *data;
curr = mlx5_flow_os_get_specific_workspace();
if (!curr) {
data = flow_alloc_thread_workspace();
if (!data)
return NULL;
} else if (!curr->inuse) {
data = curr;
} else if (curr->next) {
data = curr->next;
} else {
data = flow_alloc_thread_workspace();
if (!data)
return NULL;
curr->next = data;
data->prev = curr;
}
data->inuse = 1;
data->flow_idx = 0;
/* Set as current workspace */
if (mlx5_flow_os_set_specific_workspace(data))
DRV_LOG(ERR, "Failed to set flow workspace to thread.");
return data;
}
/**
* Close current thread specific flow workspace.
*
* If previous workspace available, set it as current.
*
* @return pointer to thread specific flow workspace data, NULL on error.
*/
static void
mlx5_flow_pop_thread_workspace(void)
{
struct mlx5_flow_workspace *data = mlx5_flow_get_thread_workspace();
if (!data)
return;
if (!data->inuse) {
DRV_LOG(ERR, "Failed to close unused flow workspace.");
return;
}
data->inuse = 0;
if (!data->prev)
return;
if (mlx5_flow_os_set_specific_workspace(data->prev))
DRV_LOG(ERR, "Failed to set flow workspace to thread.");
}
/**
* Verify the flow list is empty
*
* @param dev
* Pointer to Ethernet device.
*
* @return the number of flows not released.
*/
int
mlx5_flow_verify(struct rte_eth_dev *dev)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct rte_flow *flow;
uint32_t idx;
int ret = 0;
ILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], priv->flows, idx,
flow, next) {
DRV_LOG(DEBUG, "port %u flow %p still referenced",
dev->data->port_id, (void *)flow);
++ret;
}
return ret;
}
/**
* Enable default hairpin egress flow.
*
* @param dev
* Pointer to Ethernet device.
* @param queue
* The queue index.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_ctrl_flow_source_queue(struct rte_eth_dev *dev,
uint32_t queue)
{
struct mlx5_priv *priv = dev->data->dev_private;
const struct rte_flow_attr attr = {
.egress = 1,
.priority = 0,
};
struct mlx5_rte_flow_item_tx_queue queue_spec = {
.queue = queue,
};
struct mlx5_rte_flow_item_tx_queue queue_mask = {
.queue = UINT32_MAX,
};
struct rte_flow_item items[] = {
{
.type = (enum rte_flow_item_type)
MLX5_RTE_FLOW_ITEM_TYPE_TX_QUEUE,
.spec = &queue_spec,
.last = NULL,
.mask = &queue_mask,
},
{
.type = RTE_FLOW_ITEM_TYPE_END,
},
};
struct rte_flow_action_jump jump = {
.group = MLX5_HAIRPIN_TX_TABLE,
};
struct rte_flow_action actions[2];
uint32_t flow_idx;
struct rte_flow_error error;
actions[0].type = RTE_FLOW_ACTION_TYPE_JUMP;
actions[0].conf = &jump;
actions[1].type = RTE_FLOW_ACTION_TYPE_END;
flow_idx = flow_list_create(dev, &priv->ctrl_flows,
&attr, items, actions, false, &error);
if (!flow_idx) {
DRV_LOG(DEBUG,
"Failed to create ctrl flow: rte_errno(%d),"
" type(%d), message(%s)",
rte_errno, error.type,
error.message ? error.message : " (no stated reason)");
return -rte_errno;
}
return 0;
}
/**
* Enable a control flow configured from the control plane.
*
* @param dev
* Pointer to Ethernet device.
* @param eth_spec
* An Ethernet flow spec to apply.
* @param eth_mask
* An Ethernet flow mask to apply.
* @param vlan_spec
* A VLAN flow spec to apply.
* @param vlan_mask
* A VLAN flow mask to apply.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_ctrl_flow_vlan(struct rte_eth_dev *dev,
struct rte_flow_item_eth *eth_spec,
struct rte_flow_item_eth *eth_mask,
struct rte_flow_item_vlan *vlan_spec,
struct rte_flow_item_vlan *vlan_mask)
{
struct mlx5_priv *priv = dev->data->dev_private;
const struct rte_flow_attr attr = {
.ingress = 1,
.priority = MLX5_FLOW_LOWEST_PRIO_INDICATOR,
};
struct rte_flow_item items[] = {
{
.type = RTE_FLOW_ITEM_TYPE_ETH,
.spec = eth_spec,
.last = NULL,
.mask = eth_mask,
},
{
.type = (vlan_spec) ? RTE_FLOW_ITEM_TYPE_VLAN :
RTE_FLOW_ITEM_TYPE_END,
.spec = vlan_spec,
.last = NULL,
.mask = vlan_mask,
},
{
.type = RTE_FLOW_ITEM_TYPE_END,
},
};
uint16_t queue[priv->reta_idx_n];
struct rte_flow_action_rss action_rss = {
.func = RTE_ETH_HASH_FUNCTION_DEFAULT,
.level = 0,
.types = priv->rss_conf.rss_hf,
.key_len = priv->rss_conf.rss_key_len,
.queue_num = priv->reta_idx_n,
.key = priv->rss_conf.rss_key,
.queue = queue,
};
struct rte_flow_action actions[] = {
{
.type = RTE_FLOW_ACTION_TYPE_RSS,
.conf = &action_rss,
},
{
.type = RTE_FLOW_ACTION_TYPE_END,
},
};
uint32_t flow_idx;
struct rte_flow_error error;
unsigned int i;
if (!priv->reta_idx_n || !priv->rxqs_n) {
return 0;
}
if (!(dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG))
action_rss.types = 0;
for (i = 0; i != priv->reta_idx_n; ++i)
queue[i] = (*priv->reta_idx)[i];
flow_idx = flow_list_create(dev, &priv->ctrl_flows,
&attr, items, actions, false, &error);
if (!flow_idx)
return -rte_errno;
return 0;
}
/**
* Enable a flow control configured from the control plane.
*
* @param dev
* Pointer to Ethernet device.
* @param eth_spec
* An Ethernet flow spec to apply.
* @param eth_mask
* An Ethernet flow mask to apply.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_ctrl_flow(struct rte_eth_dev *dev,
struct rte_flow_item_eth *eth_spec,
struct rte_flow_item_eth *eth_mask)
{
return mlx5_ctrl_flow_vlan(dev, eth_spec, eth_mask, NULL, NULL);
}
/**
* Create default miss flow rule matching lacp traffic
*
* @param dev
* Pointer to Ethernet device.
* @param eth_spec
* An Ethernet flow spec to apply.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_lacp_miss(struct rte_eth_dev *dev)
{
struct mlx5_priv *priv = dev->data->dev_private;
/*
* The LACP matching is done by only using ether type since using
* a multicast dst mac causes kernel to give low priority to this flow.
*/
static const struct rte_flow_item_eth lacp_spec = {
.type = RTE_BE16(0x8809),
};
static const struct rte_flow_item_eth lacp_mask = {
.type = 0xffff,
};
const struct rte_flow_attr attr = {
.ingress = 1,
};
struct rte_flow_item items[] = {
{
.type = RTE_FLOW_ITEM_TYPE_ETH,
.spec = &lacp_spec,
.mask = &lacp_mask,
},
{
.type = RTE_FLOW_ITEM_TYPE_END,
},
};
struct rte_flow_action actions[] = {
{
.type = (enum rte_flow_action_type)
MLX5_RTE_FLOW_ACTION_TYPE_DEFAULT_MISS,
},
{
.type = RTE_FLOW_ACTION_TYPE_END,
},
};
struct rte_flow_error error;
uint32_t flow_idx = flow_list_create(dev, &priv->ctrl_flows,
&attr, items, actions, false, &error);
if (!flow_idx)
return -rte_errno;
return 0;
}
/**
* Destroy a flow.
*
* @see rte_flow_destroy()
* @see rte_flow_ops
*/
int
mlx5_flow_destroy(struct rte_eth_dev *dev,
struct rte_flow *flow,
struct rte_flow_error *error __rte_unused)
{
struct mlx5_priv *priv = dev->data->dev_private;
flow_list_destroy(dev, &priv->flows, (uintptr_t)(void *)flow);
return 0;
}
/**
* Destroy all flows.
*
* @see rte_flow_flush()
* @see rte_flow_ops
*/
int
mlx5_flow_flush(struct rte_eth_dev *dev,
struct rte_flow_error *error __rte_unused)
{
struct mlx5_priv *priv = dev->data->dev_private;
mlx5_flow_list_flush(dev, &priv->flows, false);
return 0;
}
/**
* Isolated mode.
*
* @see rte_flow_isolate()
* @see rte_flow_ops
*/
int
mlx5_flow_isolate(struct rte_eth_dev *dev,
int enable,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
if (dev->data->dev_started) {
rte_flow_error_set(error, EBUSY,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL,
"port must be stopped first");
return -rte_errno;
}
priv->isolated = !!enable;
if (enable)
dev->dev_ops = &mlx5_dev_ops_isolate;
else
dev->dev_ops = &mlx5_dev_ops;
dev->rx_descriptor_status = mlx5_rx_descriptor_status;
dev->tx_descriptor_status = mlx5_tx_descriptor_status;
return 0;
}
/**
* Query a flow.
*
* @see rte_flow_query()
* @see rte_flow_ops
*/
static int
flow_drv_query(struct rte_eth_dev *dev,
uint32_t flow_idx,
const struct rte_flow_action *actions,
void *data,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
const struct mlx5_flow_driver_ops *fops;
struct rte_flow *flow = mlx5_ipool_get(priv->sh->ipool
[MLX5_IPOOL_RTE_FLOW],
flow_idx);
enum mlx5_flow_drv_type ftype;
if (!flow) {
return rte_flow_error_set(error, ENOENT,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL,
"invalid flow handle");
}
ftype = flow->drv_type;
MLX5_ASSERT(ftype > MLX5_FLOW_TYPE_MIN && ftype < MLX5_FLOW_TYPE_MAX);
fops = flow_get_drv_ops(ftype);
return fops->query(dev, flow, actions, data, error);
}
/**
* Query a flow.
*
* @see rte_flow_query()
* @see rte_flow_ops
*/
int
mlx5_flow_query(struct rte_eth_dev *dev,
struct rte_flow *flow,
const struct rte_flow_action *actions,
void *data,
struct rte_flow_error *error)
{
int ret;
ret = flow_drv_query(dev, (uintptr_t)(void *)flow, actions, data,
error);
if (ret < 0)
return ret;
return 0;
}
/**
* Get rte_flow callbacks.
*
* @param dev
* Pointer to Ethernet device structure.
* @param ops
* Pointer to operation-specific structure.
*
* @return 0
*/
int
mlx5_flow_ops_get(struct rte_eth_dev *dev __rte_unused,
const struct rte_flow_ops **ops)
{
*ops = &mlx5_flow_ops;
return 0;
}
/**
* Create the needed meter and suffix tables.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] fm
* Pointer to the flow meter.
*
* @return
* Pointer to table set on success, NULL otherwise.
*/
struct mlx5_meter_domains_infos *
mlx5_flow_create_mtr_tbls(struct rte_eth_dev *dev,
const struct mlx5_flow_meter *fm)
{
const struct mlx5_flow_driver_ops *fops;
fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
return fops->create_mtr_tbls(dev, fm);
}
/**
* Destroy the meter table set.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] tbl
* Pointer to the meter table set.
*
* @return
* 0 on success.
*/
int
mlx5_flow_destroy_mtr_tbls(struct rte_eth_dev *dev,
struct mlx5_meter_domains_infos *tbls)
{
const struct mlx5_flow_driver_ops *fops;
fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
return fops->destroy_mtr_tbls(dev, tbls);
}
/**
* Create policer rules.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] fm
* Pointer to flow meter structure.
* @param[in] attr
* Pointer to flow attributes.
*
* @return
* 0 on success, -1 otherwise.
*/
int
mlx5_flow_create_policer_rules(struct rte_eth_dev *dev,
struct mlx5_flow_meter *fm,
const struct rte_flow_attr *attr)
{
const struct mlx5_flow_driver_ops *fops;
fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
return fops->create_policer_rules(dev, fm, attr);
}
/**
* Destroy policer rules.
*
* @param[in] fm
* Pointer to flow meter structure.
* @param[in] attr
* Pointer to flow attributes.
*
* @return
* 0 on success, -1 otherwise.
*/
int
mlx5_flow_destroy_policer_rules(struct rte_eth_dev *dev,
struct mlx5_flow_meter *fm,
const struct rte_flow_attr *attr)
{
const struct mlx5_flow_driver_ops *fops;
fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
return fops->destroy_policer_rules(dev, fm, attr);
}
/**
* Allocate a counter.
*
* @param[in] dev
* Pointer to Ethernet device structure.
*
* @return
* Index to allocated counter on success, 0 otherwise.
*/
uint32_t
mlx5_counter_alloc(struct rte_eth_dev *dev)
{
const struct mlx5_flow_driver_ops *fops;
struct rte_flow_attr attr = { .transfer = 0 };
if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) {
fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
return fops->counter_alloc(dev);
}
DRV_LOG(ERR,
"port %u counter allocate is not supported.",
dev->data->port_id);
return 0;
}
/**
* Free a counter.
*
* @param[in] dev
* Pointer to Ethernet device structure.
* @param[in] cnt
* Index to counter to be free.
*/
void
mlx5_counter_free(struct rte_eth_dev *dev, uint32_t cnt)
{
const struct mlx5_flow_driver_ops *fops;
struct rte_flow_attr attr = { .transfer = 0 };
if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) {
fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
fops->counter_free(dev, cnt);
return;
}
DRV_LOG(ERR,
"port %u counter free is not supported.",
dev->data->port_id);
}
/**
* Query counter statistics.
*
* @param[in] dev
* Pointer to Ethernet device structure.
* @param[in] cnt
* Index to counter to query.
* @param[in] clear
* Set to clear counter statistics.
* @param[out] pkts
* The counter hits packets number to save.
* @param[out] bytes
* The counter hits bytes number to save.
*
* @return
* 0 on success, a negative errno value otherwise.
*/
int
mlx5_counter_query(struct rte_eth_dev *dev, uint32_t cnt,
bool clear, uint64_t *pkts, uint64_t *bytes)
{
const struct mlx5_flow_driver_ops *fops;
struct rte_flow_attr attr = { .transfer = 0 };
if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) {
fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
return fops->counter_query(dev, cnt, clear, pkts, bytes);
}
DRV_LOG(ERR,
"port %u counter query is not supported.",
dev->data->port_id);
return -ENOTSUP;
}
/**
* Allocate a new memory for the counter values wrapped by all the needed
* management.
*
* @param[in] sh
* Pointer to mlx5_dev_ctx_shared object.
*
* @return
* 0 on success, a negative errno value otherwise.
*/
static int
mlx5_flow_create_counter_stat_mem_mng(struct mlx5_dev_ctx_shared *sh)
{
struct mlx5_devx_mkey_attr mkey_attr;
struct mlx5_counter_stats_mem_mng *mem_mng;
volatile struct flow_counter_stats *raw_data;
int raws_n = MLX5_CNT_CONTAINER_RESIZE + MLX5_MAX_PENDING_QUERIES;
int size = (sizeof(struct flow_counter_stats) *
MLX5_COUNTERS_PER_POOL +
sizeof(struct mlx5_counter_stats_raw)) * raws_n +
sizeof(struct mlx5_counter_stats_mem_mng);
size_t pgsize = rte_mem_page_size();
uint8_t *mem;
int i;
if (pgsize == (size_t)-1) {
DRV_LOG(ERR, "Failed to get mem page size");
rte_errno = ENOMEM;
return -ENOMEM;
}
mem = mlx5_malloc(MLX5_MEM_ZERO, size, pgsize, SOCKET_ID_ANY);
if (!mem) {
rte_errno = ENOMEM;
return -ENOMEM;
}
mem_mng = (struct mlx5_counter_stats_mem_mng *)(mem + size) - 1;
size = sizeof(*raw_data) * MLX5_COUNTERS_PER_POOL * raws_n;
mem_mng->umem = mlx5_os_umem_reg(sh->ctx, mem, size,
IBV_ACCESS_LOCAL_WRITE);
if (!mem_mng->umem) {
rte_errno = errno;
mlx5_free(mem);
return -rte_errno;
}
mkey_attr.addr = (uintptr_t)mem;
mkey_attr.size = size;
mkey_attr.umem_id = mlx5_os_get_umem_id(mem_mng->umem);
mkey_attr.pd = sh->pdn;
mkey_attr.log_entity_size = 0;
mkey_attr.pg_access = 0;
mkey_attr.klm_array = NULL;
mkey_attr.klm_num = 0;
mkey_attr.relaxed_ordering_write = sh->cmng.relaxed_ordering_write;
mkey_attr.relaxed_ordering_read = sh->cmng.relaxed_ordering_read;
mem_mng->dm = mlx5_devx_cmd_mkey_create(sh->ctx, &mkey_attr);
if (!mem_mng->dm) {
mlx5_os_umem_dereg(mem_mng->umem);
rte_errno = errno;
mlx5_free(mem);
return -rte_errno;
}
mem_mng->raws = (struct mlx5_counter_stats_raw *)(mem + size);
raw_data = (volatile struct flow_counter_stats *)mem;
for (i = 0; i < raws_n; ++i) {
mem_mng->raws[i].mem_mng = mem_mng;
mem_mng->raws[i].data = raw_data + i * MLX5_COUNTERS_PER_POOL;
}
for (i = 0; i < MLX5_MAX_PENDING_QUERIES; ++i)
LIST_INSERT_HEAD(&sh->cmng.free_stat_raws,
mem_mng->raws + MLX5_CNT_CONTAINER_RESIZE + i,
next);
LIST_INSERT_HEAD(&sh->cmng.mem_mngs, mem_mng, next);
sh->cmng.mem_mng = mem_mng;
return 0;
}
/**
* Set the statistic memory to the new counter pool.
*
* @param[in] sh
* Pointer to mlx5_dev_ctx_shared object.
* @param[in] pool
* Pointer to the pool to set the statistic memory.
*
* @return
* 0 on success, a negative errno value otherwise.
*/
static int
mlx5_flow_set_counter_stat_mem(struct mlx5_dev_ctx_shared *sh,
struct mlx5_flow_counter_pool *pool)
{
struct mlx5_flow_counter_mng *cmng = &sh->cmng;
/* Resize statistic memory once used out. */
if (!(pool->index % MLX5_CNT_CONTAINER_RESIZE) &&
mlx5_flow_create_counter_stat_mem_mng(sh)) {
DRV_LOG(ERR, "Cannot resize counter stat mem.");
return -1;
}
rte_spinlock_lock(&pool->sl);
pool->raw = cmng->mem_mng->raws + pool->index %
MLX5_CNT_CONTAINER_RESIZE;
rte_spinlock_unlock(&pool->sl);
pool->raw_hw = NULL;
return 0;
}
#define MLX5_POOL_QUERY_FREQ_US 1000000
/**
* Set the periodic procedure for triggering asynchronous batch queries for all
* the counter pools.
*
* @param[in] sh
* Pointer to mlx5_dev_ctx_shared object.
*/
void
mlx5_set_query_alarm(struct mlx5_dev_ctx_shared *sh)
{
uint32_t pools_n, us;
pools_n = __atomic_load_n(&sh->cmng.n_valid, __ATOMIC_RELAXED);
us = MLX5_POOL_QUERY_FREQ_US / pools_n;
DRV_LOG(DEBUG, "Set alarm for %u pools each %u us", pools_n, us);
if (rte_eal_alarm_set(us, mlx5_flow_query_alarm, sh)) {
sh->cmng.query_thread_on = 0;
DRV_LOG(ERR, "Cannot reinitialize query alarm");
} else {
sh->cmng.query_thread_on = 1;
}
}
/**
* The periodic procedure for triggering asynchronous batch queries for all the
* counter pools. This function is probably called by the host thread.
*
* @param[in] arg
* The parameter for the alarm process.
*/
void
mlx5_flow_query_alarm(void *arg)
{
struct mlx5_dev_ctx_shared *sh = arg;
int ret;
uint16_t pool_index = sh->cmng.pool_index;
struct mlx5_flow_counter_mng *cmng = &sh->cmng;
struct mlx5_flow_counter_pool *pool;
uint16_t n_valid;
if (sh->cmng.pending_queries >= MLX5_MAX_PENDING_QUERIES)
goto set_alarm;
rte_spinlock_lock(&cmng->pool_update_sl);
pool = cmng->pools[pool_index];
n_valid = cmng->n_valid;
rte_spinlock_unlock(&cmng->pool_update_sl);
/* Set the statistic memory to the new created pool. */
if ((!pool->raw && mlx5_flow_set_counter_stat_mem(sh, pool)))
goto set_alarm;
if (pool->raw_hw)
/* There is a pool query in progress. */
goto set_alarm;
pool->raw_hw =
LIST_FIRST(&sh->cmng.free_stat_raws);
if (!pool->raw_hw)
/* No free counter statistics raw memory. */
goto set_alarm;
/*
* Identify the counters released between query trigger and query
* handle more efficiently. The counter released in this gap period
* should wait for a new round of query as the new arrived packets
* will not be taken into account.
*/
pool->query_gen++;
ret = mlx5_devx_cmd_flow_counter_query(pool->min_dcs, 0,
MLX5_COUNTERS_PER_POOL,
NULL, NULL,
pool->raw_hw->mem_mng->dm->id,
(void *)(uintptr_t)
pool->raw_hw->data,
sh->devx_comp,
(uint64_t)(uintptr_t)pool);
if (ret) {
DRV_LOG(ERR, "Failed to trigger asynchronous query for dcs ID"
" %d", pool->min_dcs->id);
pool->raw_hw = NULL;
goto set_alarm;
}
LIST_REMOVE(pool->raw_hw, next);
sh->cmng.pending_queries++;
pool_index++;
if (pool_index >= n_valid)
pool_index = 0;
set_alarm:
sh->cmng.pool_index = pool_index;
mlx5_set_query_alarm(sh);
}
/**
* Check and callback event for new aged flow in the counter pool
*
* @param[in] sh
* Pointer to mlx5_dev_ctx_shared object.
* @param[in] pool
* Pointer to Current counter pool.
*/
static void
mlx5_flow_aging_check(struct mlx5_dev_ctx_shared *sh,
struct mlx5_flow_counter_pool *pool)
{
struct mlx5_priv *priv;
struct mlx5_flow_counter *cnt;
struct mlx5_age_info *age_info;
struct mlx5_age_param *age_param;
struct mlx5_counter_stats_raw *cur = pool->raw_hw;
struct mlx5_counter_stats_raw *prev = pool->raw;
const uint64_t curr_time = MLX5_CURR_TIME_SEC;
const uint32_t time_delta = curr_time - pool->time_of_last_age_check;
uint16_t expected = AGE_CANDIDATE;
uint32_t i;
pool->time_of_last_age_check = curr_time;
for (i = 0; i < MLX5_COUNTERS_PER_POOL; ++i) {
cnt = MLX5_POOL_GET_CNT(pool, i);
age_param = MLX5_CNT_TO_AGE(cnt);
if (__atomic_load_n(&age_param->state,
__ATOMIC_RELAXED) != AGE_CANDIDATE)
continue;
if (cur->data[i].hits != prev->data[i].hits) {
__atomic_store_n(&age_param->sec_since_last_hit, 0,
__ATOMIC_RELAXED);
continue;
}
if (__atomic_add_fetch(&age_param->sec_since_last_hit,
time_delta,
__ATOMIC_RELAXED) <= age_param->timeout)
continue;
/**
* Hold the lock first, or if between the
* state AGE_TMOUT and tailq operation the
* release happened, the release procedure
* may delete a non-existent tailq node.
*/
priv = rte_eth_devices[age_param->port_id].data->dev_private;
age_info = GET_PORT_AGE_INFO(priv);
rte_spinlock_lock(&age_info->aged_sl);
if (__atomic_compare_exchange_n(&age_param->state, &expected,
AGE_TMOUT, false,
__ATOMIC_RELAXED,
__ATOMIC_RELAXED)) {
TAILQ_INSERT_TAIL(&age_info->aged_counters, cnt, next);
MLX5_AGE_SET(age_info, MLX5_AGE_EVENT_NEW);
}
rte_spinlock_unlock(&age_info->aged_sl);
}
mlx5_age_event_prepare(sh);
}
/**
* Handler for the HW respond about ready values from an asynchronous batch
* query. This function is probably called by the host thread.
*
* @param[in] sh
* The pointer to the shared device context.
* @param[in] async_id
* The Devx async ID.
* @param[in] status
* The status of the completion.
*/
void
mlx5_flow_async_pool_query_handle(struct mlx5_dev_ctx_shared *sh,
uint64_t async_id, int status)
{
struct mlx5_flow_counter_pool *pool =
(struct mlx5_flow_counter_pool *)(uintptr_t)async_id;
struct mlx5_counter_stats_raw *raw_to_free;
uint8_t query_gen = pool->query_gen ^ 1;
struct mlx5_flow_counter_mng *cmng = &sh->cmng;
enum mlx5_counter_type cnt_type =
pool->is_aged ? MLX5_COUNTER_TYPE_AGE :
MLX5_COUNTER_TYPE_ORIGIN;
if (unlikely(status)) {
raw_to_free = pool->raw_hw;
} else {
raw_to_free = pool->raw;
if (pool->is_aged)
mlx5_flow_aging_check(sh, pool);
rte_spinlock_lock(&pool->sl);
pool->raw = pool->raw_hw;
rte_spinlock_unlock(&pool->sl);
/* Be sure the new raw counters data is updated in memory. */
rte_io_wmb();
if (!TAILQ_EMPTY(&pool->counters[query_gen])) {
rte_spinlock_lock(&cmng->csl[cnt_type]);
TAILQ_CONCAT(&cmng->counters[cnt_type],
&pool->counters[query_gen], next);
rte_spinlock_unlock(&cmng->csl[cnt_type]);
}
}
LIST_INSERT_HEAD(&sh->cmng.free_stat_raws, raw_to_free, next);
pool->raw_hw = NULL;
sh->cmng.pending_queries--;
}
static int
flow_group_to_table(uint32_t port_id, uint32_t group, uint32_t *table,
const struct flow_grp_info *grp_info,
struct rte_flow_error *error)
{
if (grp_info->transfer && grp_info->external &&
grp_info->fdb_def_rule) {
if (group == UINT32_MAX)
return rte_flow_error_set
(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
NULL,
"group index not supported");
*table = group + 1;
} else {
*table = group;
}
DRV_LOG(DEBUG, "port %u group=%#x table=%#x", port_id, group, *table);
return 0;
}
/**
* Translate the rte_flow group index to HW table value.
*
* If tunnel offload is disabled, all group ids converted to flow table
* id using the standard method.
* If tunnel offload is enabled, group id can be converted using the
* standard or tunnel conversion method. Group conversion method
* selection depends on flags in `grp_info` parameter:
* - Internal (grp_info.external == 0) groups conversion uses the
* standard method.
* - Group ids in JUMP action converted with the tunnel conversion.
* - Group id in rule attribute conversion depends on a rule type and
* group id value:
* ** non zero group attributes converted with the tunnel method
* ** zero group attribute in non-tunnel rule is converted using the
* standard method - there's only one root table
* ** zero group attribute in steer tunnel rule is converted with the
* standard method - single root table
* ** zero group attribute in match tunnel rule is a special OvS
* case: that value is used for portability reasons. That group
* id is converted with the tunnel conversion method.
*
* @param[in] dev
* Port device
* @param[in] tunnel
* PMD tunnel offload object
* @param[in] group
* rte_flow group index value.
* @param[out] table
* HW table value.
* @param[in] grp_info
* flags used for conversion
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_group_to_table(struct rte_eth_dev *dev,
const struct mlx5_flow_tunnel *tunnel,
uint32_t group, uint32_t *table,
const struct flow_grp_info *grp_info,
struct rte_flow_error *error)
{
int ret;
bool standard_translation;
if (!grp_info->skip_scale && grp_info->external &&
group < MLX5_MAX_TABLES_EXTERNAL)
group *= MLX5_FLOW_TABLE_FACTOR;
if (is_tunnel_offload_active(dev)) {
standard_translation = !grp_info->external ||
grp_info->std_tbl_fix;
} else {
standard_translation = true;
}
DRV_LOG(DEBUG,
"port %u group=%u transfer=%d external=%d fdb_def_rule=%d translate=%s",
dev->data->port_id, group, grp_info->transfer,
grp_info->external, grp_info->fdb_def_rule,
standard_translation ? "STANDARD" : "TUNNEL");
if (standard_translation)
ret = flow_group_to_table(dev->data->port_id, group, table,
grp_info, error);
else
ret = tunnel_flow_group_to_flow_table(dev, tunnel, group,
table, error);
return ret;
}
/**
* Discover availability of metadata reg_c's.
*
* Iteratively use test flows to check availability.
*
* @param[in] dev
* Pointer to the Ethernet device structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_discover_mreg_c(struct rte_eth_dev *dev)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_dev_config *config = &priv->config;
enum modify_reg idx;
int n = 0;
/* reg_c[0] and reg_c[1] are reserved. */
config->flow_mreg_c[n++] = REG_C_0;
config->flow_mreg_c[n++] = REG_C_1;
/* Discover availability of other reg_c's. */
for (idx = REG_C_2; idx <= REG_C_7; ++idx) {
struct rte_flow_attr attr = {
.group = MLX5_FLOW_MREG_CP_TABLE_GROUP,
.priority = MLX5_FLOW_LOWEST_PRIO_INDICATOR,
.ingress = 1,
};
struct rte_flow_item items[] = {
[0] = {
.type = RTE_FLOW_ITEM_TYPE_END,
},
};
struct rte_flow_action actions[] = {
[0] = {
.type = (enum rte_flow_action_type)
MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
.conf = &(struct mlx5_flow_action_copy_mreg){
.src = REG_C_1,
.dst = idx,
},
},
[1] = {
.type = RTE_FLOW_ACTION_TYPE_JUMP,
.conf = &(struct rte_flow_action_jump){
.group = MLX5_FLOW_MREG_ACT_TABLE_GROUP,
},
},
[2] = {
.type = RTE_FLOW_ACTION_TYPE_END,
},
};
uint32_t flow_idx;
struct rte_flow *flow;
struct rte_flow_error error;
if (!config->dv_flow_en)
break;
/* Create internal flow, validation skips copy action. */
flow_idx = flow_list_create(dev, NULL, &attr, items,
actions, false, &error);
flow = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW],
flow_idx);
if (!flow)
continue;
config->flow_mreg_c[n++] = idx;
flow_list_destroy(dev, NULL, flow_idx);
}
for (; n < MLX5_MREG_C_NUM; ++n)
config->flow_mreg_c[n] = REG_NON;
return 0;
}
/**
* Dump flow raw hw data to file
*
* @param[in] dev
* The pointer to Ethernet device.
* @param[in] file
* A pointer to a file for output.
* @param[out] error
* Perform verbose error reporting if not NULL. PMDs initialize this
* structure in case of error only.
* @return
* 0 on success, a nagative value otherwise.
*/
int
mlx5_flow_dev_dump(struct rte_eth_dev *dev, struct rte_flow *flow_idx,
FILE *file,
struct rte_flow_error *error __rte_unused)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_dev_ctx_shared *sh = priv->sh;
if (!priv->config.dv_flow_en) {
if (fputs("device dv flow disabled\n", file) <= 0)
return -errno;
return -ENOTSUP;
}
if (!flow_idx)
return mlx5_devx_cmd_flow_dump(sh->fdb_domain,
sh->rx_domain, sh->tx_domain, file);
return -ENOTSUP;
}
/**
* Get aged-out flows.
*
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in] context
* The address of an array of pointers to the aged-out flows contexts.
* @param[in] nb_countexts
* The length of context array pointers.
* @param[out] error
* Perform verbose error reporting if not NULL. Initialized in case of
* error only.
*
* @return
* how many contexts get in success, otherwise negative errno value.
* if nb_contexts is 0, return the amount of all aged contexts.
* if nb_contexts is not 0 , return the amount of aged flows reported
* in the context array.
*/
int
mlx5_flow_get_aged_flows(struct rte_eth_dev *dev, void **contexts,
uint32_t nb_contexts, struct rte_flow_error *error)
{
const struct mlx5_flow_driver_ops *fops;
struct rte_flow_attr attr = { .transfer = 0 };
if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) {
fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
return fops->get_aged_flows(dev, contexts, nb_contexts,
error);
}
DRV_LOG(ERR,
"port %u get aged flows is not supported.",
dev->data->port_id);
return -ENOTSUP;
}
/* Wrapper for driver action_validate op callback */
static int
flow_drv_action_validate(struct rte_eth_dev *dev,
const struct rte_flow_shared_action_conf *conf,
const struct rte_flow_action *action,
const struct mlx5_flow_driver_ops *fops,
struct rte_flow_error *error)
{
static const char err_msg[] = "shared action validation unsupported";
if (!fops->action_validate) {
DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg);
rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
NULL, err_msg);
return -rte_errno;
}
return fops->action_validate(dev, conf, action, error);
}
/**
* Destroys the shared action by handle.
*
* @param dev
* Pointer to Ethernet device structure.
* @param[in] action
* Handle for the shared action to be destroyed.
* @param[out] error
* Perform verbose error reporting if not NULL. PMDs initialize this
* structure in case of error only.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*
* @note: wrapper for driver action_create op callback.
*/
static int
mlx5_shared_action_destroy(struct rte_eth_dev *dev,
struct rte_flow_shared_action *action,
struct rte_flow_error *error)
{
static const char err_msg[] = "shared action destruction unsupported";
struct rte_flow_attr attr = { .transfer = 0 };
const struct mlx5_flow_driver_ops *fops =
flow_get_drv_ops(flow_get_drv_type(dev, &attr));
if (!fops->action_destroy) {
DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg);
rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
NULL, err_msg);
return -rte_errno;
}
return fops->action_destroy(dev, action, error);
}
/* Wrapper for driver action_destroy op callback */
static int
flow_drv_action_update(struct rte_eth_dev *dev,
struct rte_flow_shared_action *action,
const void *action_conf,
const struct mlx5_flow_driver_ops *fops,
struct rte_flow_error *error)
{
static const char err_msg[] = "shared action update unsupported";
if (!fops->action_update) {
DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg);
rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
NULL, err_msg);
return -rte_errno;
}
return fops->action_update(dev, action, action_conf, error);
}
/* Wrapper for driver action_destroy op callback */
static int
flow_drv_action_query(struct rte_eth_dev *dev,
const struct rte_flow_shared_action *action,
void *data,
const struct mlx5_flow_driver_ops *fops,
struct rte_flow_error *error)
{
static const char err_msg[] = "shared action query unsupported";
if (!fops->action_query) {
DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg);
rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
NULL, err_msg);
return -rte_errno;
}
return fops->action_query(dev, action, data, error);
}
/**
* Create shared action for reuse in multiple flow rules.
*
* @param dev
* Pointer to Ethernet device structure.
* @param[in] action
* Action configuration for shared action creation.
* @param[out] error
* Perform verbose error reporting if not NULL. PMDs initialize this
* structure in case of error only.
* @return
* A valid handle in case of success, NULL otherwise and rte_errno is set.
*/
static struct rte_flow_shared_action *
mlx5_shared_action_create(struct rte_eth_dev *dev,
const struct rte_flow_shared_action_conf *conf,
const struct rte_flow_action *action,
struct rte_flow_error *error)
{
static const char err_msg[] = "shared action creation unsupported";
struct rte_flow_attr attr = { .transfer = 0 };
const struct mlx5_flow_driver_ops *fops =
flow_get_drv_ops(flow_get_drv_type(dev, &attr));
if (flow_drv_action_validate(dev, conf, action, fops, error))
return NULL;
if (!fops->action_create) {
DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg);
rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
NULL, err_msg);
return NULL;
}
return fops->action_create(dev, conf, action, error);
}
/**
* Updates inplace the shared action configuration pointed by *action* handle
* with the configuration provided as *action* argument.
* The update of the shared action configuration effects all flow rules reusing
* the action via handle.
*
* @param dev
* Pointer to Ethernet device structure.
* @param[in] shared_action
* Handle for the shared action to be updated.
* @param[in] action
* Action specification used to modify the action pointed by handle.
* *action* should be of same type with the action pointed by the *action*
* handle argument, otherwise considered as invalid.
* @param[out] error
* Perform verbose error reporting if not NULL. PMDs initialize this
* structure in case of error only.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_shared_action_update(struct rte_eth_dev *dev,
struct rte_flow_shared_action *shared_action,
const struct rte_flow_action *action,
struct rte_flow_error *error)
{
struct rte_flow_attr attr = { .transfer = 0 };
const struct mlx5_flow_driver_ops *fops =
flow_get_drv_ops(flow_get_drv_type(dev, &attr));
int ret;
ret = flow_drv_action_validate(dev, NULL, action, fops, error);
if (ret)
return ret;
return flow_drv_action_update(dev, shared_action, action->conf, fops,
error);
}
/**
* Query the shared action by handle.
*
* This function allows retrieving action-specific data such as counters.
* Data is gathered by special action which may be present/referenced in
* more than one flow rule definition.
*
* \see RTE_FLOW_ACTION_TYPE_COUNT
*
* @param dev
* Pointer to Ethernet device structure.
* @param[in] action
* Handle for the shared action to query.
* @param[in, out] data
* Pointer to storage for the associated query data type.
* @param[out] error
* Perform verbose error reporting if not NULL. PMDs initialize this
* structure in case of error only.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_shared_action_query(struct rte_eth_dev *dev,
const struct rte_flow_shared_action *action,
void *data,
struct rte_flow_error *error)
{
struct rte_flow_attr attr = { .transfer = 0 };
const struct mlx5_flow_driver_ops *fops =
flow_get_drv_ops(flow_get_drv_type(dev, &attr));
return flow_drv_action_query(dev, action, data, fops, error);
}
/**
* Destroy all shared actions.
*
* @param dev
* Pointer to Ethernet device.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_shared_action_flush(struct rte_eth_dev *dev)
{
struct rte_flow_error error;
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_shared_action_rss *shared_rss;
int ret = 0;
uint32_t idx;
ILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS],
priv->rss_shared_actions, idx, shared_rss, next) {
ret |= mlx5_shared_action_destroy(dev,
(struct rte_flow_shared_action *)(uintptr_t)idx, &error);
}
return ret;
}
#ifndef HAVE_MLX5DV_DR
#define MLX5_DOMAIN_SYNC_FLOW ((1 << 0) | (1 << 1))
#else
#define MLX5_DOMAIN_SYNC_FLOW \
(MLX5DV_DR_DOMAIN_SYNC_FLAGS_SW | MLX5DV_DR_DOMAIN_SYNC_FLAGS_HW)
#endif
int rte_pmd_mlx5_sync_flow(uint16_t port_id, uint32_t domains)
{
struct rte_eth_dev *dev = &rte_eth_devices[port_id];
const struct mlx5_flow_driver_ops *fops;
int ret;
struct rte_flow_attr attr = { .transfer = 0 };
fops = flow_get_drv_ops(flow_get_drv_type(dev, &attr));
ret = fops->sync_domain(dev, domains, MLX5_DOMAIN_SYNC_FLOW);
if (ret > 0)
ret = -ret;
return ret;
}
/**
* tunnel offload functionalilty is defined for DV environment only
*/
#ifdef HAVE_IBV_FLOW_DV_SUPPORT
__extension__
union tunnel_offload_mark {
uint32_t val;
struct {
uint32_t app_reserve:8;
uint32_t table_id:15;
uint32_t transfer:1;
uint32_t _unused_:8;
};
};
static bool
mlx5_access_tunnel_offload_db
(struct rte_eth_dev *dev,
bool (*match)(struct rte_eth_dev *,
struct mlx5_flow_tunnel *, const void *),
void (*hit)(struct rte_eth_dev *, struct mlx5_flow_tunnel *, void *),
void (*miss)(struct rte_eth_dev *, void *),
void *ctx, bool lock_op);
static int
flow_tunnel_add_default_miss(struct rte_eth_dev *dev,
struct rte_flow *flow,
const struct rte_flow_attr *attr,
const struct rte_flow_action *app_actions,
uint32_t flow_idx,
struct tunnel_default_miss_ctx *ctx,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_flow *dev_flow;
struct rte_flow_attr miss_attr = *attr;
const struct mlx5_flow_tunnel *tunnel = app_actions[0].conf;
const struct rte_flow_item miss_items[2] = {
{
.type = RTE_FLOW_ITEM_TYPE_ETH,
.spec = NULL,
.last = NULL,
.mask = NULL
},
{
.type = RTE_FLOW_ITEM_TYPE_END,
.spec = NULL,
.last = NULL,
.mask = NULL
}
};
union tunnel_offload_mark mark_id;
struct rte_flow_action_mark miss_mark;
struct rte_flow_action miss_actions[3] = {
[0] = { .type = RTE_FLOW_ACTION_TYPE_MARK, .conf = &miss_mark },
[2] = { .type = RTE_FLOW_ACTION_TYPE_END, .conf = NULL }
};
const struct rte_flow_action_jump *jump_data;
uint32_t i, flow_table = 0; /* prevent compilation warning */
struct flow_grp_info grp_info = {
.external = 1,
.transfer = attr->transfer,
.fdb_def_rule = !!priv->fdb_def_rule,
.std_tbl_fix = 0,
};
int ret;
if (!attr->transfer) {
uint32_t q_size;
miss_actions[1].type = RTE_FLOW_ACTION_TYPE_RSS;
q_size = priv->reta_idx_n * sizeof(ctx->queue[0]);
ctx->queue = mlx5_malloc(MLX5_MEM_SYS | MLX5_MEM_ZERO, q_size,
0, SOCKET_ID_ANY);
if (!ctx->queue)
return rte_flow_error_set
(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
NULL, "invalid default miss RSS");
ctx->action_rss.func = RTE_ETH_HASH_FUNCTION_DEFAULT,
ctx->action_rss.level = 0,
ctx->action_rss.types = priv->rss_conf.rss_hf,
ctx->action_rss.key_len = priv->rss_conf.rss_key_len,
ctx->action_rss.queue_num = priv->reta_idx_n,
ctx->action_rss.key = priv->rss_conf.rss_key,
ctx->action_rss.queue = ctx->queue;
if (!priv->reta_idx_n || !priv->rxqs_n)
return rte_flow_error_set
(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
NULL, "invalid port configuration");
if (!(dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG))
ctx->action_rss.types = 0;
for (i = 0; i != priv->reta_idx_n; ++i)
ctx->queue[i] = (*priv->reta_idx)[i];
} else {
miss_actions[1].type = RTE_FLOW_ACTION_TYPE_JUMP;
ctx->miss_jump.group = MLX5_TNL_MISS_FDB_JUMP_GRP;
}
miss_actions[1].conf = (typeof(miss_actions[1].conf))ctx->raw;
for (; app_actions->type != RTE_FLOW_ACTION_TYPE_JUMP; app_actions++);
jump_data = app_actions->conf;
miss_attr.priority = MLX5_TNL_MISS_RULE_PRIORITY;
miss_attr.group = jump_data->group;
ret = mlx5_flow_group_to_table(dev, tunnel, jump_data->group,
&flow_table, &grp_info, error);
if (ret)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
NULL, "invalid tunnel id");
mark_id.app_reserve = 0;
mark_id.table_id = tunnel_flow_tbl_to_id(flow_table);
mark_id.transfer = !!attr->transfer;
mark_id._unused_ = 0;
miss_mark.id = mark_id.val;
dev_flow = flow_drv_prepare(dev, flow, &miss_attr,
miss_items, miss_actions, flow_idx, error);
if (!dev_flow)
return -rte_errno;
dev_flow->flow = flow;
dev_flow->external = true;
dev_flow->tunnel = tunnel;
/* Subflow object was created, we must include one in the list. */
SILIST_INSERT(&flow->dev_handles, dev_flow->handle_idx,
dev_flow->handle, next);
DRV_LOG(DEBUG,
"port %u tunnel type=%d id=%u miss rule priority=%u group=%u",
dev->data->port_id, tunnel->app_tunnel.type,
tunnel->tunnel_id, miss_attr.priority, miss_attr.group);
ret = flow_drv_translate(dev, dev_flow, &miss_attr, miss_items,
miss_actions, error);
if (!ret)
ret = flow_mreg_update_copy_table(dev, flow, miss_actions,
error);
return ret;
}
static const struct mlx5_flow_tbl_data_entry *
tunnel_mark_decode(struct rte_eth_dev *dev, uint32_t mark)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_dev_ctx_shared *sh = priv->sh;
struct mlx5_hlist_entry *he;
union tunnel_offload_mark mbits = { .val = mark };
union mlx5_flow_tbl_key table_key = {
{
.table_id = tunnel_id_to_flow_tbl(mbits.table_id),
.dummy = 0,
.domain = !!mbits.transfer,
.direction = 0,
}
};
he = mlx5_hlist_lookup(sh->flow_tbls, table_key.v64, NULL);
return he ?
container_of(he, struct mlx5_flow_tbl_data_entry, entry) : NULL;
}
static void
mlx5_flow_tunnel_grp2tbl_remove_cb(struct mlx5_hlist *list,
struct mlx5_hlist_entry *entry)
{
struct mlx5_dev_ctx_shared *sh = list->ctx;
struct tunnel_tbl_entry *tte = container_of(entry, typeof(*tte), hash);
mlx5_ipool_free(sh->ipool[MLX5_IPOOL_TNL_TBL_ID],
tunnel_flow_tbl_to_id(tte->flow_table));
mlx5_free(tte);
}
static int
mlx5_flow_tunnel_grp2tbl_match_cb(struct mlx5_hlist *list __rte_unused,
struct mlx5_hlist_entry *entry,
uint64_t key, void *cb_ctx __rte_unused)
{
union tunnel_tbl_key tbl = {
.val = key,
};
struct tunnel_tbl_entry *tte = container_of(entry, typeof(*tte), hash);
return tbl.tunnel_id != tte->tunnel_id || tbl.group != tte->group;
}
static struct mlx5_hlist_entry *
mlx5_flow_tunnel_grp2tbl_create_cb(struct mlx5_hlist *list, uint64_t key,
void *ctx __rte_unused)
{
struct mlx5_dev_ctx_shared *sh = list->ctx;
struct tunnel_tbl_entry *tte;
union tunnel_tbl_key tbl = {
.val = key,
};
tte = mlx5_malloc(MLX5_MEM_SYS | MLX5_MEM_ZERO,
sizeof(*tte), 0,
SOCKET_ID_ANY);
if (!tte)
goto err;
mlx5_ipool_malloc(sh->ipool[MLX5_IPOOL_TNL_TBL_ID],
&tte->flow_table);
if (tte->flow_table >= MLX5_MAX_TABLES) {
DRV_LOG(ERR, "Tunnel TBL ID %d exceed max limit.",
tte->flow_table);
mlx5_ipool_free(sh->ipool[MLX5_IPOOL_TNL_TBL_ID],
tte->flow_table);
goto err;
} else if (!tte->flow_table) {
goto err;
}
tte->flow_table = tunnel_id_to_flow_tbl(tte->flow_table);
tte->tunnel_id = tbl.tunnel_id;
tte->group = tbl.group;
return &tte->hash;
err:
if (tte)
mlx5_free(tte);
return NULL;
}
static uint32_t
tunnel_flow_group_to_flow_table(struct rte_eth_dev *dev,
const struct mlx5_flow_tunnel *tunnel,
uint32_t group, uint32_t *table,
struct rte_flow_error *error)
{
struct mlx5_hlist_entry *he;
struct tunnel_tbl_entry *tte;
union tunnel_tbl_key key = {
.tunnel_id = tunnel ? tunnel->tunnel_id : 0,
.group = group
};
struct mlx5_flow_tunnel_hub *thub = mlx5_tunnel_hub(dev);
struct mlx5_hlist *group_hash;
group_hash = tunnel ? tunnel->groups : thub->groups;
he = mlx5_hlist_register(group_hash, key.val, NULL);
if (!he)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
NULL,
"tunnel group index not supported");
tte = container_of(he, typeof(*tte), hash);
*table = tte->flow_table;
DRV_LOG(DEBUG, "port %u tunnel %u group=%#x table=%#x",
dev->data->port_id, key.tunnel_id, group, *table);
return 0;
}
static void
mlx5_flow_tunnel_free(struct rte_eth_dev *dev,
struct mlx5_flow_tunnel *tunnel)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_indexed_pool *ipool;
DRV_LOG(DEBUG, "port %u release pmd tunnel id=0x%x",
dev->data->port_id, tunnel->tunnel_id);
LIST_REMOVE(tunnel, chain);
mlx5_hlist_destroy(tunnel->groups);
ipool = priv->sh->ipool[MLX5_IPOOL_TUNNEL_ID];
mlx5_ipool_free(ipool, tunnel->tunnel_id);
}
static bool
mlx5_access_tunnel_offload_db
(struct rte_eth_dev *dev,
bool (*match)(struct rte_eth_dev *,
struct mlx5_flow_tunnel *, const void *),
void (*hit)(struct rte_eth_dev *, struct mlx5_flow_tunnel *, void *),
void (*miss)(struct rte_eth_dev *, void *),
void *ctx, bool lock_op)
{
bool verdict = false;
struct mlx5_flow_tunnel_hub *thub = mlx5_tunnel_hub(dev);
struct mlx5_flow_tunnel *tunnel;
rte_spinlock_lock(&thub->sl);
LIST_FOREACH(tunnel, &thub->tunnels, chain) {
verdict = match(dev, tunnel, (const void *)ctx);
if (verdict)
break;
}
if (!lock_op)
rte_spinlock_unlock(&thub->sl);
if (verdict && hit)
hit(dev, tunnel, ctx);
if (!verdict && miss)
miss(dev, ctx);
if (lock_op)
rte_spinlock_unlock(&thub->sl);
return verdict;
}
struct tunnel_db_find_tunnel_id_ctx {
uint32_t tunnel_id;
struct mlx5_flow_tunnel *tunnel;
};
static bool
find_tunnel_id_match(struct rte_eth_dev *dev,
struct mlx5_flow_tunnel *tunnel, const void *x)
{
const struct tunnel_db_find_tunnel_id_ctx *ctx = x;
RTE_SET_USED(dev);
return tunnel->tunnel_id == ctx->tunnel_id;
}
static void
find_tunnel_id_hit(struct rte_eth_dev *dev,
struct mlx5_flow_tunnel *tunnel, void *x)
{
struct tunnel_db_find_tunnel_id_ctx *ctx = x;
RTE_SET_USED(dev);
ctx->tunnel = tunnel;
}
static struct mlx5_flow_tunnel *
mlx5_find_tunnel_id(struct rte_eth_dev *dev, uint32_t id)
{
struct tunnel_db_find_tunnel_id_ctx ctx = {
.tunnel_id = id,
};
mlx5_access_tunnel_offload_db(dev, find_tunnel_id_match,
find_tunnel_id_hit, NULL, &ctx, true);
return ctx.tunnel;
}
static struct mlx5_flow_tunnel *
mlx5_flow_tunnel_allocate(struct rte_eth_dev *dev,
const struct rte_flow_tunnel *app_tunnel)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_indexed_pool *ipool;
struct mlx5_flow_tunnel *tunnel;
uint32_t id;
ipool = priv->sh->ipool[MLX5_IPOOL_TUNNEL_ID];
tunnel = mlx5_ipool_zmalloc(ipool, &id);
if (!tunnel)
return NULL;
if (id >= MLX5_MAX_TUNNELS) {
mlx5_ipool_free(ipool, id);
DRV_LOG(ERR, "Tunnel ID %d exceed max limit.", id);
return NULL;
}
tunnel->groups = mlx5_hlist_create("tunnel groups", 1024, 0, 0,
mlx5_flow_tunnel_grp2tbl_create_cb,
mlx5_flow_tunnel_grp2tbl_match_cb,
mlx5_flow_tunnel_grp2tbl_remove_cb);
if (!tunnel->groups) {
mlx5_ipool_free(ipool, id);
return NULL;
}
tunnel->groups->ctx = priv->sh;
/* initiate new PMD tunnel */
memcpy(&tunnel->app_tunnel, app_tunnel, sizeof(*app_tunnel));
tunnel->tunnel_id = id;
tunnel->action.type = (typeof(tunnel->action.type))
MLX5_RTE_FLOW_ACTION_TYPE_TUNNEL_SET;
tunnel->action.conf = tunnel;
tunnel->item.type = (typeof(tunnel->item.type))
MLX5_RTE_FLOW_ITEM_TYPE_TUNNEL;
tunnel->item.spec = tunnel;
tunnel->item.last = NULL;
tunnel->item.mask = NULL;
DRV_LOG(DEBUG, "port %u new pmd tunnel id=0x%x",
dev->data->port_id, tunnel->tunnel_id);
return tunnel;
}
struct tunnel_db_get_tunnel_ctx {
const struct rte_flow_tunnel *app_tunnel;
struct mlx5_flow_tunnel *tunnel;
};
static bool get_tunnel_match(struct rte_eth_dev *dev,
struct mlx5_flow_tunnel *tunnel, const void *x)
{
const struct tunnel_db_get_tunnel_ctx *ctx = x;
RTE_SET_USED(dev);
return !memcmp(ctx->app_tunnel, &tunnel->app_tunnel,
sizeof(*ctx->app_tunnel));
}
static void get_tunnel_hit(struct rte_eth_dev *dev,
struct mlx5_flow_tunnel *tunnel, void *x)
{
/* called under tunnel spinlock protection */
struct tunnel_db_get_tunnel_ctx *ctx = x;
RTE_SET_USED(dev);
tunnel->refctn++;
ctx->tunnel = tunnel;
}
static void get_tunnel_miss(struct rte_eth_dev *dev, void *x)
{
/* called under tunnel spinlock protection */
struct mlx5_flow_tunnel_hub *thub = mlx5_tunnel_hub(dev);
struct tunnel_db_get_tunnel_ctx *ctx = x;
rte_spinlock_unlock(&thub->sl);
ctx->tunnel = mlx5_flow_tunnel_allocate(dev, ctx->app_tunnel);
rte_spinlock_lock(&thub->sl);
if (ctx->tunnel) {
ctx->tunnel->refctn = 1;
LIST_INSERT_HEAD(&thub->tunnels, ctx->tunnel, chain);
}
}
static int
mlx5_get_flow_tunnel(struct rte_eth_dev *dev,
const struct rte_flow_tunnel *app_tunnel,
struct mlx5_flow_tunnel **tunnel)
{
struct tunnel_db_get_tunnel_ctx ctx = {
.app_tunnel = app_tunnel,
};
mlx5_access_tunnel_offload_db(dev, get_tunnel_match, get_tunnel_hit,
get_tunnel_miss, &ctx, true);
*tunnel = ctx.tunnel;
return ctx.tunnel ? 0 : -ENOMEM;
}
void mlx5_release_tunnel_hub(struct mlx5_dev_ctx_shared *sh, uint16_t port_id)
{
struct mlx5_flow_tunnel_hub *thub = sh->tunnel_hub;
if (!thub)
return;
if (!LIST_EMPTY(&thub->tunnels))
DRV_LOG(WARNING, "port %u tunnels present", port_id);
mlx5_hlist_destroy(thub->groups);
mlx5_free(thub);
}
int mlx5_alloc_tunnel_hub(struct mlx5_dev_ctx_shared *sh)
{
int err;
struct mlx5_flow_tunnel_hub *thub;
thub = mlx5_malloc(MLX5_MEM_SYS | MLX5_MEM_ZERO, sizeof(*thub),
0, SOCKET_ID_ANY);
if (!thub)
return -ENOMEM;
LIST_INIT(&thub->tunnels);
rte_spinlock_init(&thub->sl);
thub->groups = mlx5_hlist_create("flow groups",
rte_align32pow2(MLX5_MAX_TABLES), 0,
0, mlx5_flow_tunnel_grp2tbl_create_cb,
mlx5_flow_tunnel_grp2tbl_match_cb,
mlx5_flow_tunnel_grp2tbl_remove_cb);
if (!thub->groups) {
err = -rte_errno;
goto err;
}
thub->groups->ctx = sh;
sh->tunnel_hub = thub;
return 0;
err:
if (thub->groups)
mlx5_hlist_destroy(thub->groups);
if (thub)
mlx5_free(thub);
return err;
}
static inline bool
mlx5_flow_tunnel_validate(struct rte_eth_dev *dev,
struct rte_flow_tunnel *tunnel,
const char *err_msg)
{
err_msg = NULL;
if (!is_tunnel_offload_active(dev)) {
err_msg = "tunnel offload was not activated";
goto out;
} else if (!tunnel) {
err_msg = "no application tunnel";
goto out;
}
switch (tunnel->type) {
default:
err_msg = "unsupported tunnel type";
goto out;
case RTE_FLOW_ITEM_TYPE_VXLAN:
break;
}
out:
return !err_msg;
}
static int
mlx5_flow_tunnel_decap_set(struct rte_eth_dev *dev,
struct rte_flow_tunnel *app_tunnel,
struct rte_flow_action **actions,
uint32_t *num_of_actions,
struct rte_flow_error *error)
{
int ret;
struct mlx5_flow_tunnel *tunnel;
const char *err_msg = NULL;
bool verdict = mlx5_flow_tunnel_validate(dev, app_tunnel, err_msg);
if (!verdict)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
err_msg);
ret = mlx5_get_flow_tunnel(dev, app_tunnel, &tunnel);
if (ret < 0) {
return rte_flow_error_set(error, ret,
RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
"failed to initialize pmd tunnel");
}
*actions = &tunnel->action;
*num_of_actions = 1;
return 0;
}
static int
mlx5_flow_tunnel_match(struct rte_eth_dev *dev,
struct rte_flow_tunnel *app_tunnel,
struct rte_flow_item **items,
uint32_t *num_of_items,
struct rte_flow_error *error)
{
int ret;
struct mlx5_flow_tunnel *tunnel;
const char *err_msg = NULL;
bool verdict = mlx5_flow_tunnel_validate(dev, app_tunnel, err_msg);
if (!verdict)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
err_msg);
ret = mlx5_get_flow_tunnel(dev, app_tunnel, &tunnel);
if (ret < 0) {
return rte_flow_error_set(error, ret,
RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
"failed to initialize pmd tunnel");
}
*items = &tunnel->item;
*num_of_items = 1;
return 0;
}
struct tunnel_db_element_release_ctx {
struct rte_flow_item *items;
struct rte_flow_action *actions;
uint32_t num_elements;
struct rte_flow_error *error;
int ret;
};
static bool
tunnel_element_release_match(struct rte_eth_dev *dev,
struct mlx5_flow_tunnel *tunnel, const void *x)
{
const struct tunnel_db_element_release_ctx *ctx = x;
RTE_SET_USED(dev);
if (ctx->num_elements != 1)
return false;
else if (ctx->items)
return ctx->items == &tunnel->item;
else if (ctx->actions)
return ctx->actions == &tunnel->action;
return false;
}
static void
tunnel_element_release_hit(struct rte_eth_dev *dev,
struct mlx5_flow_tunnel *tunnel, void *x)
{
struct tunnel_db_element_release_ctx *ctx = x;
ctx->ret = 0;
if (!__atomic_sub_fetch(&tunnel->refctn, 1, __ATOMIC_RELAXED))
mlx5_flow_tunnel_free(dev, tunnel);
}
static void
tunnel_element_release_miss(struct rte_eth_dev *dev, void *x)
{
struct tunnel_db_element_release_ctx *ctx = x;
RTE_SET_USED(dev);
ctx->ret = rte_flow_error_set(ctx->error, EINVAL,
RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
"invalid argument");
}
static int
mlx5_flow_tunnel_item_release(struct rte_eth_dev *dev,
struct rte_flow_item *pmd_items,
uint32_t num_items, struct rte_flow_error *err)
{
struct tunnel_db_element_release_ctx ctx = {
.items = pmd_items,
.actions = NULL,
.num_elements = num_items,
.error = err,
};
mlx5_access_tunnel_offload_db(dev, tunnel_element_release_match,
tunnel_element_release_hit,
tunnel_element_release_miss, &ctx, false);
return ctx.ret;
}
static int
mlx5_flow_tunnel_action_release(struct rte_eth_dev *dev,
struct rte_flow_action *pmd_actions,
uint32_t num_actions, struct rte_flow_error *err)
{
struct tunnel_db_element_release_ctx ctx = {
.items = NULL,
.actions = pmd_actions,
.num_elements = num_actions,
.error = err,
};
mlx5_access_tunnel_offload_db(dev, tunnel_element_release_match,
tunnel_element_release_hit,
tunnel_element_release_miss, &ctx, false);
return ctx.ret;
}
static int
mlx5_flow_tunnel_get_restore_info(struct rte_eth_dev *dev,
struct rte_mbuf *m,
struct rte_flow_restore_info *info,
struct rte_flow_error *err)
{
uint64_t ol_flags = m->ol_flags;
const struct mlx5_flow_tbl_data_entry *tble;
const uint64_t mask = PKT_RX_FDIR | PKT_RX_FDIR_ID;
if (!is_tunnel_offload_active(dev)) {
info->flags = 0;
return 0;
}
if ((ol_flags & mask) != mask)
goto err;
tble = tunnel_mark_decode(dev, m->hash.fdir.hi);
if (!tble) {
DRV_LOG(DEBUG, "port %u invalid miss tunnel mark %#x",
dev->data->port_id, m->hash.fdir.hi);
goto err;
}
MLX5_ASSERT(tble->tunnel);
memcpy(&info->tunnel, &tble->tunnel->app_tunnel, sizeof(info->tunnel));
info->group_id = tble->group_id;
info->flags = RTE_FLOW_RESTORE_INFO_TUNNEL |
RTE_FLOW_RESTORE_INFO_GROUP_ID |
RTE_FLOW_RESTORE_INFO_ENCAPSULATED;
return 0;
err:
return rte_flow_error_set(err, EINVAL,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
"failed to get restore info");
}
#else /* HAVE_IBV_FLOW_DV_SUPPORT */
static int
mlx5_flow_tunnel_decap_set(__rte_unused struct rte_eth_dev *dev,
__rte_unused struct rte_flow_tunnel *app_tunnel,
__rte_unused struct rte_flow_action **actions,
__rte_unused uint32_t *num_of_actions,
__rte_unused struct rte_flow_error *error)
{
return -ENOTSUP;
}
static int
mlx5_flow_tunnel_match(__rte_unused struct rte_eth_dev *dev,
__rte_unused struct rte_flow_tunnel *app_tunnel,
__rte_unused struct rte_flow_item **items,
__rte_unused uint32_t *num_of_items,
__rte_unused struct rte_flow_error *error)
{
return -ENOTSUP;
}
static int
mlx5_flow_tunnel_item_release(__rte_unused struct rte_eth_dev *dev,
__rte_unused struct rte_flow_item *pmd_items,
__rte_unused uint32_t num_items,
__rte_unused struct rte_flow_error *err)
{
return -ENOTSUP;
}
static int
mlx5_flow_tunnel_action_release(__rte_unused struct rte_eth_dev *dev,
__rte_unused struct rte_flow_action *pmd_action,
__rte_unused uint32_t num_actions,
__rte_unused struct rte_flow_error *err)
{
return -ENOTSUP;
}
static int
mlx5_flow_tunnel_get_restore_info(__rte_unused struct rte_eth_dev *dev,
__rte_unused struct rte_mbuf *m,
__rte_unused struct rte_flow_restore_info *i,
__rte_unused struct rte_flow_error *err)
{
return -ENOTSUP;
}
static int
flow_tunnel_add_default_miss(__rte_unused struct rte_eth_dev *dev,
__rte_unused struct rte_flow *flow,
__rte_unused const struct rte_flow_attr *attr,
__rte_unused const struct rte_flow_action *actions,
__rte_unused uint32_t flow_idx,
__rte_unused struct tunnel_default_miss_ctx *ctx,
__rte_unused struct rte_flow_error *error)
{
return -ENOTSUP;
}
static struct mlx5_flow_tunnel *
mlx5_find_tunnel_id(__rte_unused struct rte_eth_dev *dev,
__rte_unused uint32_t id)
{
return NULL;
}
static void
mlx5_flow_tunnel_free(__rte_unused struct rte_eth_dev *dev,
__rte_unused struct mlx5_flow_tunnel *tunnel)
{
}
static uint32_t
tunnel_flow_group_to_flow_table(__rte_unused struct rte_eth_dev *dev,
__rte_unused const struct mlx5_flow_tunnel *t,
__rte_unused uint32_t group,
__rte_unused uint32_t *table,
struct rte_flow_error *error)
{
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
"tunnel offload requires DV support");
}
void
mlx5_release_tunnel_hub(__rte_unused struct mlx5_dev_ctx_shared *sh,
__rte_unused uint16_t port_id)
{
}
#endif /* HAVE_IBV_FLOW_DV_SUPPORT */
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