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numam-dpdk/drivers/net/mlx5/mlx5_flow.c
Lior Margalit fa06906a48 net/mlx5: fix IPIP multi-tunnel validation 
A flow rule must not include multiple tunnel layers.
An attempt to create such a rule, for example:
testpmd> flow create .../ vxlan / eth / ipv4 proto is 4 / end <actions>
results in an unclear error.

In the current implementation there is a check for
multiple IPIP tunnels, but not for combination of IPIP
and a different kind of tunnel, such as VXLAN. The fix
is to enhance the above check to use MLX5_FLOW_LAYER_TUNNEL
that consists of all the tunnel masks. The error message
will be "multiple tunnel not supported".

Fixes: 5e33bebdd8 ("net/mlx5: support IP-in-IP tunnel")
Cc: stable@dpdk.org

Signed-off-by: Lior Margalit <lmargalit@nvidia.com>
Acked-by: Ori Kam <orika@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
2021-06-24 13:19:51 +02:00

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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,
const struct mlx5_flow_tunnel *tunnel,
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).
*/
uint8_t optional;
/**< optional expand field. Default 0 to expand, 1 not go deeper. */
};
/** 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 void
mlx5_dbg__print_pattern(const struct rte_flow_item *item);
static bool
mlx5_flow_is_rss_expandable_item(const struct rte_flow_item *item)
{
switch (item->type) {
case RTE_FLOW_ITEM_TYPE_ETH:
case RTE_FLOW_ITEM_TYPE_VLAN:
case RTE_FLOW_ITEM_TYPE_IPV4:
case RTE_FLOW_ITEM_TYPE_IPV6:
case RTE_FLOW_ITEM_TYPE_UDP:
case RTE_FLOW_ITEM_TYPE_TCP:
case RTE_FLOW_ITEM_TYPE_VXLAN:
case RTE_FLOW_ITEM_TYPE_NVGRE:
case RTE_FLOW_ITEM_TYPE_GRE:
case RTE_FLOW_ITEM_TYPE_GENEVE:
return true;
default:
break;
}
return false;
}
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 16
/**
* 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 (!mlx5_flow_is_rss_expandable_item(item)) {
user_pattern_size += sizeof(*item);
continue;
}
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->optional && 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_NVGRE,
MLX5_EXPANSION_GRE_KEY,
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_NVGRE,
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,
MLX5_EXPANSION_NVGRE),
.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,
MLX5_EXPANSION_GRE_KEY),
.type = RTE_FLOW_ITEM_TYPE_GRE,
},
[MLX5_EXPANSION_GRE_KEY] = {
.next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
MLX5_EXPANSION_IPV6),
.type = RTE_FLOW_ITEM_TYPE_GRE_KEY,
.optional = 1,
},
[MLX5_EXPANSION_NVGRE] = {
.next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH),
.type = RTE_FLOW_ITEM_TYPE_NVGRE,
},
[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_action_handle *
mlx5_action_handle_create(struct rte_eth_dev *dev,
const struct rte_flow_indir_action_conf *conf,
const struct rte_flow_action *action,
struct rte_flow_error *error);
static int mlx5_action_handle_destroy
(struct rte_eth_dev *dev,
struct rte_flow_action_handle *handle,
struct rte_flow_error *error);
static int mlx5_action_handle_update
(struct rte_eth_dev *dev,
struct rte_flow_action_handle *handle,
const void *update,
struct rte_flow_error *error);
static int mlx5_action_handle_query
(struct rte_eth_dev *dev,
const struct rte_flow_action_handle *handle,
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,
.action_handle_create = mlx5_action_handle_create,
.action_handle_destroy = mlx5_action_handle_destroy,
.action_handle_update = mlx5_action_handle_update,
.action_handle_query = mlx5_action_handle_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_ID:
/*
* If meter color and meter id 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:
case MLX5_ASO_CONNTRACK:
/* All 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.
*/
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;
}
/*
* Validate the ASO CT action.
*
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in] conntrack
* Pointer to the CT action profile.
* @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_ct(struct rte_eth_dev *dev,
const struct rte_flow_action_conntrack *conntrack,
struct rte_flow_error *error)
{
RTE_SET_USED(dev);
if (conntrack->state > RTE_FLOW_CONNTRACK_STATE_TIME_WAIT)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"Invalid CT state");
if (conntrack->last_index > RTE_FLOW_CONNTRACK_FLAG_RST)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"Invalid last TCP packet flag");
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_TUNNEL) {
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_TUNNEL) {
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 &&
!dev_handle->is_meter_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);
}
/**
* Flow driver find RSS policy tbl API. This abstracts calling driver
* specific functions. Parent flow (rte_flow) should have driver
* type (drv_type). It will find the RSS policy table that has the rss_desc.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in, out] flow
* Pointer to flow structure.
* @param[in] policy
* Pointer to meter policy table.
* @param[in] rss_desc
* Pointer to rss_desc
*/
static struct mlx5_flow_meter_sub_policy *
flow_drv_meter_sub_policy_rss_prepare(struct rte_eth_dev *dev,
struct rte_flow *flow,
struct mlx5_flow_meter_policy *policy,
struct mlx5_flow_rss_desc *rss_desc[MLX5_MTR_RTE_COLORS])
{
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->meter_sub_policy_rss_prepare(dev, policy, rss_desc);
}
/**
* Get RSS action from the action list.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] actions
* Pointer to the list of actions.
* @param[in] flow
* Parent flow structure pointer.
*
* @return
* Pointer to the RSS action if exist, else return NULL.
*/
static const struct rte_flow_action_rss*
flow_get_rss_action(struct rte_eth_dev *dev,
const struct rte_flow_action actions[])
{
struct mlx5_priv *priv = dev->data->dev_private;
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;
}
case RTE_FLOW_ACTION_TYPE_METER:
{
uint32_t mtr_idx;
struct mlx5_flow_meter_info *fm;
struct mlx5_flow_meter_policy *policy;
const struct rte_flow_action_meter *mtr = actions->conf;
fm = mlx5_flow_meter_find(priv, mtr->mtr_id, &mtr_idx);
if (fm) {
policy = mlx5_flow_meter_policy_find(dev,
fm->policy_id, NULL);
if (policy && policy->is_rss)
rss =
policy->act_cnt[RTE_COLOR_GREEN].rss->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 indirect action to translated direct in some actions array */
struct mlx5_translated_action_handle {
struct rte_flow_action_handle *action; /**< Indirect action handle. */
int index; /**< Index in related array of rte_flow_action. */
};
/**
* Translates actions of type RTE_FLOW_ACTION_TYPE_INDIRECT to related
* direct action if translation possible.
* This functionality used to run same execution path for both direct and
* indirect actions on flow create. All necessary preparations for indirect
* action handling should be performed on *handle* actions list returned
* from this call.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] actions
* List of actions to translate.
* @param[out] handle
* List to store translated indirect action object handles.
* @param[in, out] indir_n
* Size of *handle* array. On return should be updated with number of
* indirect actions retrieved from the *actions* list.
* @param[out] translated_actions
* List of actions where all indirect actions were translated to direct
* 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_action_handles_translate(struct rte_eth_dev *dev,
const struct rte_flow_action actions[],
struct mlx5_translated_action_handle *handle,
int *indir_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_action_handle *handle_end = NULL;
for (n = 0; actions[n].type != RTE_FLOW_ACTION_TYPE_END; n++) {
if (actions[n].type != RTE_FLOW_ACTION_TYPE_INDIRECT)
continue;
if (copied_n == *indir_n) {
return rte_flow_error_set
(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_NUM,
NULL, "too many shared actions");
}
rte_memcpy(&handle[copied_n].action, &actions[n].conf,
sizeof(actions[n].conf));
handle[copied_n].index = n;
copied_n++;
}
n++;
*indir_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 (handle_end = handle + copied_n; handle < handle_end; handle++) {
struct mlx5_shared_action_rss *shared_rss;
uint32_t act_idx = (uint32_t)(uintptr_t)handle->action;
uint32_t type = act_idx >> MLX5_INDIRECT_ACTION_TYPE_OFFSET;
uint32_t idx = act_idx &
((1u << MLX5_INDIRECT_ACTION_TYPE_OFFSET) - 1);
switch (type) {
case MLX5_INDIRECT_ACTION_TYPE_RSS:
shared_rss = mlx5_ipool_get
(priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS], idx);
translated[handle->index].type =
RTE_FLOW_ACTION_TYPE_RSS;
translated[handle->index].conf =
&shared_rss->origin;
break;
case MLX5_INDIRECT_ACTION_TYPE_COUNT:
translated[handle->index].type =
(enum rte_flow_action_type)
MLX5_RTE_FLOW_ACTION_TYPE_COUNT;
translated[handle->index].conf = (void *)(uintptr_t)idx;
break;
case MLX5_INDIRECT_ACTION_TYPE_AGE:
if (priv->sh->flow_hit_aso_en) {
translated[handle->index].type =
(enum rte_flow_action_type)
MLX5_RTE_FLOW_ACTION_TYPE_AGE;
translated[handle->index].conf =
(void *)(uintptr_t)idx;
break;
}
/* Fall-through */
case MLX5_INDIRECT_ACTION_TYPE_CT:
if (priv->sh->ct_aso_en) {
translated[handle->index].type =
RTE_FLOW_ACTION_TYPE_CONNTRACK;
translated[handle->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 indirect 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_action_handle *handle,
int shared_n)
{
struct mlx5_translated_action_handle *handle_end;
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_shared_action_rss *shared_rss;
for (handle_end = handle + shared_n; handle < handle_end; handle++) {
uint32_t act_idx = (uint32_t)(uintptr_t)handle->action;
uint32_t type = act_idx >> MLX5_INDIRECT_ACTION_TYPE_OFFSET;
uint32_t idx = act_idx &
((1u << MLX5_INDIRECT_ACTION_TYPE_OFFSET) - 1);
switch (type) {
case MLX5_INDIRECT_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 if the action will change packet.
*
* @param dev
* Pointer to Ethernet device.
* @param[in] type
* action type.
*
* @return
* true if action will change packet, false otherwise.
*/
static bool flow_check_modify_action_type(struct rte_eth_dev *dev,
enum rte_flow_action_type type)
{
struct mlx5_priv *priv = dev->data->dev_private;
switch (type) {
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_SET_META:
case RTE_FLOW_ACTION_TYPE_SET_TAG:
case RTE_FLOW_ACTION_TYPE_OF_POP_VLAN:
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:
case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP:
case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
case RTE_FLOW_ACTION_TYPE_NVGRE_DECAP:
case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
case RTE_FLOW_ACTION_TYPE_MODIFY_FIELD:
return true;
case RTE_FLOW_ACTION_TYPE_FLAG:
case RTE_FLOW_ACTION_TYPE_MARK:
if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY)
return true;
else
return false;
default:
return false;
}
}
/**
* Check meter action from the action list.
*
* @param dev
* Pointer to Ethernet device.
* @param[in] actions
* Pointer to the list of actions.
* @param[out] has_mtr
* Pointer to the meter exist flag.
* @param[out] has_modify
* Pointer to the flag showing there's packet change action.
* @param[out] meter_id
* Pointer to the meter id.
*
* @return
* Total number of actions.
*/
static int
flow_check_meter_action(struct rte_eth_dev *dev,
const struct rte_flow_action actions[],
bool *has_mtr, bool *has_modify, uint32_t *meter_id)
{
const struct rte_flow_action_meter *mtr = NULL;
int actions_n = 0;
MLX5_ASSERT(has_mtr);
*has_mtr = false;
for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
switch (actions->type) {
case RTE_FLOW_ACTION_TYPE_METER:
mtr = actions->conf;
*meter_id = mtr->mtr_id;
*has_mtr = true;
break;
default:
break;
}
if (!*has_mtr)
*has_modify |= flow_check_modify_action_type(dev,
actions->type);
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 = (struct mlx5_rte_flow_action_set_tag) {
.id = mlx5_flow_get_reg_id(dev, MLX5_HAIRPIN_RX, 0, NULL),
.data = flow_id,
};
MLX5_ASSERT(set_tag->id > REG_NON);
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;
#ifdef HAVE_IBV_FLOW_DV_SUPPORT
dev_flow->dv.table_id = flow_split_info->table_id;
#endif
return flow_drv_translate(dev, dev_flow, attr, items, actions, error);
}
/**
* Get the sub policy of a meter.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] flow
* Parent flow structure pointer.
* @param[in] policy_id;
* Meter Policy id.
* @param[in] attr
* Flow rule attributes.
* @param[in] items
* Pattern specification (list terminated by the END pattern item).
* @param[out] error
* Perform verbose error reporting if not NULL.
*
* @return
* Pointer to the meter sub policy, NULL otherwise and rte_errno is set.
*/
static struct mlx5_flow_meter_sub_policy *
get_meter_sub_policy(struct rte_eth_dev *dev,
struct rte_flow *flow,
uint32_t policy_id,
const struct rte_flow_attr *attr,
const struct rte_flow_item items[],
struct rte_flow_error *error)
{
struct mlx5_flow_meter_policy *policy;
struct mlx5_flow_meter_sub_policy *sub_policy = NULL;
policy = mlx5_flow_meter_policy_find(dev, policy_id, NULL);
if (!policy) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
"Failed to find Meter Policy.");
goto exit;
}
if (policy->is_rss ||
(policy->is_queue &&
!policy->sub_policys[MLX5_MTR_DOMAIN_INGRESS][0]->rix_hrxq[0])) {
struct mlx5_flow_workspace *wks =
mlx5_flow_get_thread_workspace();
struct mlx5_flow_rss_desc rss_desc_v[MLX5_MTR_RTE_COLORS];
struct mlx5_flow_rss_desc *rss_desc[MLX5_MTR_RTE_COLORS] = {0};
uint32_t i;
MLX5_ASSERT(wks);
/**
* This is a tmp dev_flow,
* no need to register any matcher for it in translate.
*/
wks->skip_matcher_reg = 1;
for (i = 0; i < MLX5_MTR_RTE_COLORS; i++) {
struct mlx5_flow dev_flow = {0};
struct mlx5_flow_handle dev_handle = { {0} };
rss_desc_v[i] = wks->rss_desc;
if (policy->is_rss) {
const void *rss_act =
policy->act_cnt[i].rss->conf;
struct rte_flow_action rss_actions[2] = {
[0] = {
.type = RTE_FLOW_ACTION_TYPE_RSS,
.conf = rss_act
},
[1] = {
.type = RTE_FLOW_ACTION_TYPE_END,
.conf = NULL
}
};
dev_flow.handle = &dev_handle;
dev_flow.ingress = attr->ingress;
dev_flow.flow = flow;
dev_flow.external = 0;
#ifdef HAVE_IBV_FLOW_DV_SUPPORT
dev_flow.dv.transfer = attr->transfer;
#endif
/**
* Translate RSS action to get rss hash fields.
*/
if (flow_drv_translate(dev, &dev_flow, attr,
items, rss_actions, error))
goto exit;
rss_desc_v[i].key_len = MLX5_RSS_HASH_KEY_LEN;
rss_desc_v[i].hash_fields =
dev_flow.hash_fields;
rss_desc_v[i].queue_num =
rss_desc_v[i].hash_fields ?
rss_desc_v[i].queue_num : 1;
} else {
/* This is queue action. */
rss_desc_v[i].key_len = 0;
rss_desc_v[i].hash_fields = 0;
rss_desc_v[i].queue =
&policy->act_cnt[i].queue;
rss_desc_v[i].queue_num = 1;
}
rss_desc[i] = &rss_desc_v[i];
}
sub_policy = flow_drv_meter_sub_policy_rss_prepare(dev,
flow, policy, rss_desc);
} else {
enum mlx5_meter_domain mtr_domain =
attr->transfer ? MLX5_MTR_DOMAIN_TRANSFER :
attr->egress ? MLX5_MTR_DOMAIN_EGRESS :
MLX5_MTR_DOMAIN_INGRESS;
sub_policy = policy->sub_policys[mtr_domain][0];
}
if (!sub_policy) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
"Failed to get meter sub-policy.");
goto exit;
}
exit:
return sub_policy;
}
/**
* 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[in] dev
* Pointer to Ethernet device.
* @param[in] flow
* Parent flow structure pointer.
* @param[in] fm
* Pointer to flow meter structure.
* @param[in] attr
* Flow rule attributes.
* @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] mtr_flow_id
* Pointer to meter flow id.
* @param[out] error
* Perform verbose error reporting if not NULL.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
flow_meter_split_prep(struct rte_eth_dev *dev,
struct rte_flow *flow,
struct mlx5_flow_meter_info *fm,
const struct rte_flow_attr *attr,
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[],
uint32_t *mtr_flow_id,
struct rte_flow_error *error)
{
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;
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_item_spec;
struct mlx5_rte_flow_item_tag *tag_item_mask;
uint32_t tag_id = 0;
bool copy_vlan = false;
struct rte_flow_action *hw_mtr_action;
struct rte_flow_action *action_pre_head = NULL;
bool mtr_first = priv->sh->meter_aso_en &&
(attr->egress ||
(attr->transfer && priv->representor_id != UINT16_MAX));
uint8_t mtr_id_offset = priv->mtr_reg_share ? MLX5_MTR_COLOR_BITS : 0;
uint8_t mtr_reg_bits = priv->mtr_reg_share ?
MLX5_MTR_IDLE_BITS_IN_COLOR_REG : MLX5_REG_BITS;
uint32_t flow_id = 0;
uint32_t flow_id_reversed = 0;
uint8_t flow_id_bits = 0;
int shift;
/* For ASO meter, meter must be before tag in TX direction. */
if (mtr_first) {
action_pre_head = actions_pre++;
/* Leave space for tag action. */
tag_action = actions_pre++;
}
/* 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:
if (mtr_first) {
action_cur = action_pre_head;
} else {
/* Leave space for tag action. */
tag_action = 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 = (fm->def_policy) ?
actions_sfx++ : actions_pre++;
memcpy(action_cur, actions, sizeof(struct rte_flow_action));
}
/* Add end action to the actions. */
actions_sfx->type = RTE_FLOW_ACTION_TYPE_END;
if (priv->sh->meter_aso_en) {
/**
* For ASO meter, need to add an extra jump action explicitly,
* to jump from meter to policer table.
*/
struct mlx5_flow_meter_sub_policy *sub_policy;
struct mlx5_flow_tbl_data_entry *tbl_data;
if (!fm->def_policy) {
sub_policy = get_meter_sub_policy(dev, flow,
fm->policy_id, attr,
items, error);
if (!sub_policy)
return -rte_errno;
} else {
enum mlx5_meter_domain mtr_domain =
attr->transfer ? MLX5_MTR_DOMAIN_TRANSFER :
attr->egress ? MLX5_MTR_DOMAIN_EGRESS :
MLX5_MTR_DOMAIN_INGRESS;
sub_policy =
&priv->sh->mtrmng->def_policy[mtr_domain]->sub_policy;
}
tbl_data = container_of(sub_policy->tbl_rsc,
struct mlx5_flow_tbl_data_entry, tbl);
hw_mtr_action = actions_pre++;
hw_mtr_action->type = (enum rte_flow_action_type)
MLX5_RTE_FLOW_ACTION_TYPE_JUMP;
hw_mtr_action->conf = tbl_data->jump.action;
}
actions_pre->type = RTE_FLOW_ACTION_TYPE_END;
actions_pre++;
if (!tag_action)
return rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
"No tag action space.");
if (!mtr_flow_id) {
tag_action->type = RTE_FLOW_ACTION_TYPE_VOID;
goto exit;
}
/* Only default-policy Meter creates mtr flow id. */
if (fm->def_policy) {
mlx5_ipool_malloc(fm->flow_ipool, &tag_id);
if (!tag_id)
return rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
"Failed to allocate meter flow id.");
flow_id = tag_id - 1;
flow_id_bits = (!flow_id) ? 1 :
(MLX5_REG_BITS - __builtin_clz(flow_id));
if ((flow_id_bits + priv->sh->mtrmng->max_mtr_bits) >
mtr_reg_bits) {
mlx5_ipool_free(fm->flow_ipool, tag_id);
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
"Meter flow id exceeds max limit.");
}
if (flow_id_bits > priv->sh->mtrmng->max_mtr_flow_bits)
priv->sh->mtrmng->max_mtr_flow_bits = flow_id_bits;
}
/* 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++;
/* Build tag actions and items for meter_id/meter flow_id. */
set_tag = (struct mlx5_rte_flow_action_set_tag *)actions_pre;
tag_item_spec = (struct mlx5_rte_flow_item_tag *)sfx_items;
tag_item_mask = tag_item_spec + 1;
/* Both flow_id and meter_id share the same register. */
*set_tag = (struct mlx5_rte_flow_action_set_tag) {
.id = (enum modify_reg)mlx5_flow_get_reg_id(dev, MLX5_MTR_ID,
0, error),
.offset = mtr_id_offset,
.length = mtr_reg_bits,
.data = flow->meter,
};
/*
* The color Reg bits used by flow_id are growing from
* msb to lsb, so must do bit reverse for flow_id val in RegC.
*/
for (shift = 0; shift < flow_id_bits; shift++)
flow_id_reversed = (flow_id_reversed << 1) |
((flow_id >> shift) & 0x1);
set_tag->data |=
flow_id_reversed << (mtr_reg_bits - flow_id_bits);
tag_item_spec->id = set_tag->id;
tag_item_spec->data = set_tag->data << mtr_id_offset;
tag_item_mask->data = UINT32_MAX << mtr_id_offset;
tag_action->type = (enum rte_flow_action_type)
MLX5_RTE_FLOW_ACTION_TYPE_TAG;
tag_action->conf = set_tag;
tag_item->type = (enum rte_flow_item_type)
MLX5_RTE_FLOW_ITEM_TYPE_TAG;
tag_item->spec = tag_item_spec;
tag_item->last = NULL;
tag_item->mask = tag_item_mask;
exit:
if (mtr_flow_id)
*mtr_flow_id = tag_id;
return 0;
}
/**
* 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:
case RTE_FLOW_ACTION_TYPE_OF_POP_VLAN:
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:
case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP:
case RTE_FLOW_ACTION_TYPE_NVGRE_DECAP:
case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
case RTE_FLOW_ACTION_TYPE_MODIFY_FIELD:
case RTE_FLOW_ACTION_TYPE_METER:
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;
mlx5_ipool_malloc(priv->sh->ipool
[MLX5_IPOOL_RSS_EXPANTION_FLOW_ID], &tag_id);
*set_tag = (struct mlx5_rte_flow_action_set_tag) {
.id = ret,
.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_METER - 1) :
MLX5_FLOW_TABLE_LEVEL_METER);
/*
* 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;
}
/**
* Create meter internal drop flow with the original pattern.
*
* @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] flow_split_info
* Pointer to flow split info structure.
* @param[in] fm
* Pointer to flow meter structure.
* @param[out] error
* Perform verbose error reporting if not NULL.
* @return
* 0 on success, negative value otherwise
*/
static uint32_t
flow_meter_create_drop_flow_with_org_pattern(struct rte_eth_dev *dev,
struct rte_flow *flow,
const struct rte_flow_attr *attr,
const struct rte_flow_item items[],
struct mlx5_flow_split_info *flow_split_info,
struct mlx5_flow_meter_info *fm,
struct rte_flow_error *error)
{
struct mlx5_flow *dev_flow = NULL;
struct rte_flow_attr drop_attr = *attr;
struct rte_flow_action drop_actions[3];
struct mlx5_flow_split_info drop_split_info = *flow_split_info;
MLX5_ASSERT(fm->drop_cnt);
drop_actions[0].type =
(enum rte_flow_action_type)MLX5_RTE_FLOW_ACTION_TYPE_COUNT;
drop_actions[0].conf = (void *)(uintptr_t)fm->drop_cnt;
drop_actions[1].type = RTE_FLOW_ACTION_TYPE_DROP;
drop_actions[1].conf = NULL;
drop_actions[2].type = RTE_FLOW_ACTION_TYPE_END;
drop_actions[2].conf = NULL;
drop_split_info.external = false;
drop_split_info.skip_scale |= 1 << MLX5_SCALE_FLOW_GROUP_BIT;
drop_split_info.table_id = MLX5_MTR_TABLE_ID_DROP;
drop_attr.group = MLX5_FLOW_TABLE_LEVEL_METER;
return flow_create_split_inner(dev, flow, &dev_flow,
&drop_attr, items, drop_actions,
&drop_split_info, error);
}
/**
* 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 mlx5_flow_workspace *wks = mlx5_flow_get_thread_workspace();
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;
struct mlx5_flow_meter_info *fm = NULL;
uint8_t skip_scale_restore;
bool has_mtr = false;
bool has_modify = false;
bool set_mtr_reg = true;
uint32_t meter_id = 0;
uint32_t mtr_idx = 0;
uint32_t mtr_flow_id = 0;
size_t act_size;
size_t item_size;
int actions_n = 0;
int ret = 0;
if (priv->mtr_en)
actions_n = flow_check_meter_action(dev, actions, &has_mtr,
&has_modify, &meter_id);
if (has_mtr) {
if (flow->meter) {
fm = flow_dv_meter_find_by_idx(priv, flow->meter);
if (!fm)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL, "Meter not found.");
} else {
fm = mlx5_flow_meter_find(priv, meter_id, &mtr_idx);
if (!fm)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL, "Meter not found.");
ret = mlx5_flow_meter_attach(priv, fm,
&sfx_attr, error);
if (ret)
return -rte_errno;
flow->meter = mtr_idx;
}
MLX5_ASSERT(wks);
wks->fm = fm;
/*
* If it isn't default-policy Meter, and
* 1. There's no action in flow to change
* packet (modify/encap/decap etc.), OR
* 2. No drop count needed for this meter.
* no need to use regC to save meter id anymore.
*/
if (!fm->def_policy && (!has_modify || !fm->drop_cnt))
set_mtr_reg = false;
/* Prefix actions: meter, decap, encap, tag, jump, end. */
act_size = sizeof(struct rte_flow_action) * (actions_n + 6) +
sizeof(struct mlx5_rte_flow_action_set_tag);
/* Suffix items: 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);
/* There's no suffix flow for meter of non-default policy. */
if (!fm->def_policy)
pre_actions = sfx_actions + 1;
else
pre_actions = sfx_actions + actions_n;
ret = flow_meter_split_prep(dev, flow, fm, &sfx_attr,
items, sfx_items, actions,
sfx_actions, pre_actions,
(set_mtr_reg ? &mtr_flow_id : NULL),
error);
if (ret) {
ret = -rte_errno;
goto exit;
}
/* Add the prefix subflow. */
flow_split_info->prefix_mark = 0;
skip_scale_restore = flow_split_info->skip_scale;
flow_split_info->skip_scale |=
1 << MLX5_SCALE_JUMP_FLOW_GROUP_BIT;
ret = flow_create_split_inner(dev, flow, &dev_flow,
attr, items, pre_actions,
flow_split_info, error);
flow_split_info->skip_scale = skip_scale_restore;
if (ret) {
if (mtr_flow_id)
mlx5_ipool_free(fm->flow_ipool, mtr_flow_id);
ret = -rte_errno;
goto exit;
}
if (mtr_flow_id) {
dev_flow->handle->split_flow_id = mtr_flow_id;
dev_flow->handle->is_meter_flow_id = 1;
}
if (!fm->def_policy) {
if (!set_mtr_reg && fm->drop_cnt)
ret =
flow_meter_create_drop_flow_with_org_pattern(dev, flow,
&sfx_attr, items,
flow_split_info,
fm, error);
goto exit;
}
/* Setting the sfx group atrr. */
sfx_attr.group = sfx_attr.transfer ?
(MLX5_FLOW_TABLE_LEVEL_METER - 1) :
MLX5_FLOW_TABLE_LEVEL_METER;
flow_split_info->prefix_layers =
flow_get_prefix_layer_flags(dev_flow);
flow_split_info->prefix_mark = dev_flow->handle->mark;
flow_split_info->table_id = MLX5_MTR_TABLE_ID_SUFFIX;
}
/* 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->level - 1) : sfx_tbl_data->level;
} 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 inline struct mlx5_flow_tunnel *
flow_tunnel_from_rule(const struct mlx5_flow *flow)
{
struct mlx5_flow_tunnel *tunnel;
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
tunnel = (typeof(tunnel))flow->tunnel;
#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_action_handle
indir_actions[MLX5_MAX_INDIRECT_ACTIONS];
int indir_actions_n = MLX5_MAX_INDIRECT_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,
.table_id = 0
};
int ret;
MLX5_ASSERT(wks);
rss_desc = &wks->rss_desc;
ret = flow_action_handles_translate(dev, original_actions,
indir_actions,
&indir_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(dev, 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));
if (rte_log_can_log(mlx5_logtype, RTE_LOG_DEBUG)) {
for (i = 0; i < buf->entries; ++i)
mlx5_dbg__print_pattern(buf->entry[i].pattern);
}
} else {
buf->entries = 1;
buf->entry[0].pattern = (void *)(uintptr_t)items;
}
rss_desc->shared_rss = flow_get_shared_rss_action(dev, indir_actions,
indir_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(wks->flows[0].tof_type)) {
ret = flow_tunnel_add_default_miss(dev, flow, attr,
p_actions_rx,
idx,
wks->flows[0].tunnel,
&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(wks->flows);
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_action_handle
indir_actions[MLX5_MAX_INDIRECT_ACTIONS];
int indir_actions_n = MLX5_MAX_INDIRECT_ACTIONS;
const struct rte_flow_action *actions;
struct rte_flow_action *translated_actions = NULL;
int ret = flow_action_handles_translate(dev, original_actions,
indir_actions,
&indir_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;
}
/**
* Validate meter policy actions.
* Dispatcher for action type specific validation.
*
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in] action
* The meter policy action object to validate.
* @param[in] attr
* Attributes of flow to determine steering domain.
* @param[out] is_rss
* Is RSS or not.
* @param[out] domain_bitmap
* Domain bitmap.
* @param[out] is_def_policy
* Is default policy or not.
* @param[out] error
* Perform verbose error reporting if not NULL. Initialized in case of
* error only.
*
* @return
* 0 on success, otherwise negative errno value.
*/
int
mlx5_flow_validate_mtr_acts(struct rte_eth_dev *dev,
const struct rte_flow_action *actions[RTE_COLORS],
struct rte_flow_attr *attr,
bool *is_rss,
uint8_t *domain_bitmap,
bool *is_def_policy,
struct rte_mtr_error *error)
{
const struct mlx5_flow_driver_ops *fops;
fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
return fops->validate_mtr_acts(dev, actions, attr,
is_rss, domain_bitmap, is_def_policy, error);
}
/**
* Destroy the meter table set.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] mtr_policy
* Meter policy struct.
*/
void
mlx5_flow_destroy_mtr_acts(struct rte_eth_dev *dev,
struct mlx5_flow_meter_policy *mtr_policy)
{
const struct mlx5_flow_driver_ops *fops;
fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
fops->destroy_mtr_acts(dev, mtr_policy);
}
/**
* Create policy action, lock free,
* (mutex should be acquired by caller).
* Dispatcher for action type specific call.
*
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in] mtr_policy
* Meter policy struct.
* @param[in] action
* Action specification used to create meter actions.
* @param[out] error
* Perform verbose error reporting if not NULL. Initialized in case of
* error only.
*
* @return
* 0 on success, otherwise negative errno value.
*/
int
mlx5_flow_create_mtr_acts(struct rte_eth_dev *dev,
struct mlx5_flow_meter_policy *mtr_policy,
const struct rte_flow_action *actions[RTE_COLORS],
struct rte_mtr_error *error)
{
const struct mlx5_flow_driver_ops *fops;
fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
return fops->create_mtr_acts(dev, mtr_policy, actions, error);
}
/**
* Create policy rules, lock free,
* (mutex should be acquired by caller).
* Dispatcher for action type specific call.
*
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in] mtr_policy
* Meter policy struct.
*
* @return
* 0 on success, -1 otherwise.
*/
int
mlx5_flow_create_policy_rules(struct rte_eth_dev *dev,
struct mlx5_flow_meter_policy *mtr_policy)
{
const struct mlx5_flow_driver_ops *fops;
fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
return fops->create_policy_rules(dev, mtr_policy);
}
/**
* Destroy policy rules, lock free,
* (mutex should be acquired by caller).
* Dispatcher for action type specific call.
*
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in] mtr_policy
* Meter policy struct.
*/
void
mlx5_flow_destroy_policy_rules(struct rte_eth_dev *dev,
struct mlx5_flow_meter_policy *mtr_policy)
{
const struct mlx5_flow_driver_ops *fops;
fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
fops->destroy_policy_rules(dev, mtr_policy);
}
/**
* Destroy the default policy table set.
*
* @param[in] dev
* Pointer to Ethernet device.
*/
void
mlx5_flow_destroy_def_policy(struct rte_eth_dev *dev)
{
const struct mlx5_flow_driver_ops *fops;
fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
fops->destroy_def_policy(dev);
}
/**
* Destroy the default policy table set.
*
* @param[in] dev
* Pointer to Ethernet device.
*
* @return
* 0 on success, -1 otherwise.
*/
int
mlx5_flow_create_def_policy(struct rte_eth_dev *dev)
{
const struct mlx5_flow_driver_ops *fops;
fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
return fops->create_def_policy(dev);
}
/**
* Create the needed meter and suffix tables.
*
* @param[in] dev
* Pointer to Ethernet device.
*
* @return
* 0 on success, -1 otherwise.
*/
int
mlx5_flow_create_mtr_tbls(struct rte_eth_dev *dev,
struct mlx5_flow_meter_info *fm,
uint32_t mtr_idx,
uint8_t domain_bitmap)
{
const struct mlx5_flow_driver_ops *fops;
fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
return fops->create_mtr_tbls(dev, fm, mtr_idx, domain_bitmap);
}
/**
* Destroy the meter table set.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] tbl
* Pointer to the meter table set.
*/
void
mlx5_flow_destroy_mtr_tbls(struct rte_eth_dev *dev,
struct mlx5_flow_meter_info *fm)
{
const struct mlx5_flow_driver_ops *fops;
fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
fops->destroy_mtr_tbls(dev, fm);
}
/**
* Destroy the global meter drop table.
*
* @param[in] dev
* Pointer to Ethernet device.
*/
void
mlx5_flow_destroy_mtr_drop_tbls(struct rte_eth_dev *dev)
{
const struct mlx5_flow_driver_ops *fops;
fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
fops->destroy_mtr_drop_tbls(dev);
}
/**
* Destroy the sub policy table with RX queue.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] mtr_policy
* Pointer to meter policy table.
*/
void
mlx5_flow_destroy_sub_policy_with_rxq(struct rte_eth_dev *dev,
struct mlx5_flow_meter_policy *mtr_policy)
{
const struct mlx5_flow_driver_ops *fops;
fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
fops->destroy_sub_policy_with_rxq(dev, mtr_policy);
}
/**
* Allocate the needed aso flow meter id.
*
* @param[in] dev
* Pointer to Ethernet device.
*
* @return
* Index to aso flow meter on success, NULL otherwise.
*/
uint32_t
mlx5_flow_mtr_alloc(struct rte_eth_dev *dev)
{
const struct mlx5_flow_driver_ops *fops;
fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
return fops->create_meter(dev);
}
/**
* Free the aso flow meter id.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] mtr_idx
* Index to aso flow meter to be free.
*
* @return
* 0 on success.
*/
void
mlx5_flow_mtr_free(struct rte_eth_dev *dev, uint32_t mtr_idx)
{
const struct mlx5_flow_driver_ops *fops;
fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
fops->free_meter(dev, mtr_idx);
}
/**
* 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;
}
memset(&mkey_attr, 0, sizeof(mkey_attr));
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.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;
uint32_t handle_idx;
int ret;
struct mlx5_flow_handle *dh;
struct rte_flow *flow;
if (!priv->config.dv_flow_en) {
if (fputs("device dv flow disabled\n", file) <= 0)
return -errno;
return -ENOTSUP;
}
/* dump all */
if (!flow_idx)
return mlx5_devx_cmd_flow_dump(sh->fdb_domain,
sh->rx_domain,
sh->tx_domain, file);
/* dump one */
flow = mlx5_ipool_get(priv->sh->ipool
[MLX5_IPOOL_RTE_FLOW], (uintptr_t)(void *)flow_idx);
if (!flow)
return -ENOENT;
handle_idx = flow->dev_handles;
while (handle_idx) {
dh = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW],
handle_idx);
if (!dh)
return -ENOENT;
if (dh->drv_flow) {
ret = mlx5_devx_cmd_flow_single_dump(dh->drv_flow,
file);
if (ret)
return -ENOENT;
}
handle_idx = dh->next.next;
}
return 0;
}
/**
* 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_indir_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[] = "indirect 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] handle
* Handle for the indirect action object 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_action_handle_destroy(struct rte_eth_dev *dev,
struct rte_flow_action_handle *handle,
struct rte_flow_error *error)
{
static const char err_msg[] = "indirect 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, handle, error);
}
/* Wrapper for driver action_destroy op callback */
static int
flow_drv_action_update(struct rte_eth_dev *dev,
struct rte_flow_action_handle *handle,
const void *update,
const struct mlx5_flow_driver_ops *fops,
struct rte_flow_error *error)
{
static const char err_msg[] = "indirect 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, handle, update, error);
}
/* Wrapper for driver action_destroy op callback */
static int
flow_drv_action_query(struct rte_eth_dev *dev,
const struct rte_flow_action_handle *handle,
void *data,
const struct mlx5_flow_driver_ops *fops,
struct rte_flow_error *error)
{
static const char err_msg[] = "indirect 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, handle, data, error);
}
/**
* Create indirect action for reuse in multiple flow rules.
*
* @param dev
* Pointer to Ethernet device structure.
* @param conf
* Pointer to indirect action object configuration.
* @param[in] action
* Action configuration for indirect action object 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_action_handle *
mlx5_action_handle_create(struct rte_eth_dev *dev,
const struct rte_flow_indir_action_conf *conf,
const struct rte_flow_action *action,
struct rte_flow_error *error)
{
static const char err_msg[] = "indirect 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 indirect action configuration pointed by *handle*
* with the configuration provided as *update* argument.
* The update of the indirect action configuration effects all flow rules
* reusing the action via handle.
*
* @param dev
* Pointer to Ethernet device structure.
* @param[in] handle
* Handle for the indirect action to be updated.
* @param[in] update
* Action specification used to modify the action pointed by handle.
* *update* could be of same type with the action pointed by the *handle*
* handle argument, or some other structures like a wrapper, depending on
* the indirect action 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_action_handle_update(struct rte_eth_dev *dev,
struct rte_flow_action_handle *handle,
const void *update,
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,
(const struct rte_flow_action *)update, fops, error);
if (ret)
return ret;
return flow_drv_action_update(dev, handle, update, fops,
error);
}
/**
* Query the indirect 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] handle
* Handle for the indirect 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_action_handle_query(struct rte_eth_dev *dev,
const struct rte_flow_action_handle *handle,
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, handle, data, fops, error);
}
/**
* Destroy all indirect actions (shared RSS).
*
* @param dev
* Pointer to Ethernet device.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_action_handle_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_action_handle_destroy(dev,
(struct rte_flow_action_handle *)(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;
}
const struct mlx5_flow_tunnel *
mlx5_get_tof(const struct rte_flow_item *item,
const struct rte_flow_action *action,
enum mlx5_tof_rule_type *rule_type)
{
for (; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
if (item->type == (typeof(item->type))
MLX5_RTE_FLOW_ITEM_TYPE_TUNNEL) {
*rule_type = MLX5_TUNNEL_OFFLOAD_MATCH_RULE;
return flow_items_to_tunnel(item);
}
}
for (; action->conf != RTE_FLOW_ACTION_TYPE_END; action++) {
if (action->type == (typeof(action->type))
MLX5_RTE_FLOW_ACTION_TYPE_TUNNEL_SET) {
*rule_type = MLX5_TUNNEL_OFFLOAD_SET_RULE;
return flow_actions_to_tunnel(action);
}
}
return NULL;
}
/**
* 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,
const struct mlx5_flow_tunnel *tunnel,
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 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;
dev_flow->tof_type = MLX5_TUNNEL_OFFLOAD_MISS_RULE;
/* 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 = {
{
.level = tunnel_id_to_flow_tbl(mbits.table_id),
.id = 0,
.reserved = 0,
.dummy = 0,
.is_fdb = !!mbits.transfer,
.is_egress = 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 const struct mlx5_flow_tunnel *tunnel,
__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 */
static void
mlx5_dbg__print_pattern(const struct rte_flow_item *item)
{
int ret;
struct rte_flow_error error;
for (; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
char *item_name;
ret = rte_flow_conv(RTE_FLOW_CONV_OP_ITEM_NAME_PTR, &item_name,
sizeof(item_name),
(void *)(uintptr_t)item->type, &error);
if (ret > 0)
printf("%s ", item_name);
else
printf("%d\n", (int)item->type);
}
printf("END\n");
}
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