d/numam-dpdk
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
e80e88a097
numam-dpdk/drivers/net/mlx5/mlx5_flow.c
Yongseok Koh 5cffc8b28d net/mlx5: fix error number handling 
rte_errno should be saved only if error has occurred because rte_errno
could have garbage value.

Fixes: a6d83b6a92 ("net/mlx5: standardize on negative errno values")
Cc: stable@dpdk.org

Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
Acked-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
2018-07-03 01:35:57 +02:00

3783 lines
102 KiB
C
Raw Blame History

/* SPDX-License-Identifier: BSD-3-Clause
* Copyright 2016 6WIND S.A.
* Copyright 2016 Mellanox Technologies, Ltd
*/
#include <sys/queue.h>
#include <stdint.h>
#include <string.h>
/* Verbs header. */
/* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */
#ifdef PEDANTIC
#pragma GCC diagnostic ignored "-Wpedantic"
#endif
#include <infiniband/verbs.h>
#ifdef PEDANTIC
#pragma GCC diagnostic error "-Wpedantic"
#endif
#include <rte_common.h>
#include <rte_ether.h>
#include <rte_eth_ctrl.h>
#include <rte_ethdev_driver.h>
#include <rte_flow.h>
#include <rte_flow_driver.h>
#include <rte_malloc.h>
#include <rte_ip.h>
#include "mlx5.h"
#include "mlx5_defs.h"
#include "mlx5_prm.h"
#include "mlx5_glue.h"
/* Flow priority for control plane flows. */
#define MLX5_CTRL_FLOW_PRIORITY 1
/* Internet Protocol versions. */
#define MLX5_IPV4 4
#define MLX5_IPV6 6
#define MLX5_GRE 47
#ifndef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT
struct ibv_flow_spec_counter_action {
int dummy;
};
#endif
/* Dev ops structure defined in mlx5.c */
extern const struct eth_dev_ops mlx5_dev_ops;
extern const struct eth_dev_ops mlx5_dev_ops_isolate;
/** Structure give to the conversion functions. */
struct mlx5_flow_data {
struct rte_eth_dev *dev; /** Ethernet device. */
struct mlx5_flow_parse *parser; /** Parser context. */
struct rte_flow_error *error; /** Error context. */
};
static int
mlx5_flow_create_eth(const struct rte_flow_item *item,
const void *default_mask,
struct mlx5_flow_data *data);
static int
mlx5_flow_create_vlan(const struct rte_flow_item *item,
const void *default_mask,
struct mlx5_flow_data *data);
static int
mlx5_flow_create_ipv4(const struct rte_flow_item *item,
const void *default_mask,
struct mlx5_flow_data *data);
static int
mlx5_flow_create_ipv6(const struct rte_flow_item *item,
const void *default_mask,
struct mlx5_flow_data *data);
static int
mlx5_flow_create_udp(const struct rte_flow_item *item,
const void *default_mask,
struct mlx5_flow_data *data);
static int
mlx5_flow_create_tcp(const struct rte_flow_item *item,
const void *default_mask,
struct mlx5_flow_data *data);
static int
mlx5_flow_create_vxlan(const struct rte_flow_item *item,
const void *default_mask,
struct mlx5_flow_data *data);
static int
mlx5_flow_create_vxlan_gpe(const struct rte_flow_item *item,
const void *default_mask,
struct mlx5_flow_data *data);
static int
mlx5_flow_create_gre(const struct rte_flow_item *item,
const void *default_mask,
struct mlx5_flow_data *data);
static int
mlx5_flow_create_mpls(const struct rte_flow_item *item,
const void *default_mask,
struct mlx5_flow_data *data);
struct mlx5_flow_parse;
static void
mlx5_flow_create_copy(struct mlx5_flow_parse *parser, void *src,
unsigned int size);
static int
mlx5_flow_create_flag_mark(struct mlx5_flow_parse *parser, uint32_t mark_id);
static int
mlx5_flow_create_count(struct rte_eth_dev *dev, struct mlx5_flow_parse *parser);
/* Hash RX queue types. */
enum hash_rxq_type {
HASH_RXQ_TCPV4,
HASH_RXQ_UDPV4,
HASH_RXQ_IPV4,
HASH_RXQ_TCPV6,
HASH_RXQ_UDPV6,
HASH_RXQ_IPV6,
HASH_RXQ_ETH,
HASH_RXQ_TUNNEL,
};
/* Initialization data for hash RX queue. */
struct hash_rxq_init {
uint64_t hash_fields; /* Fields that participate in the hash. */
uint64_t dpdk_rss_hf; /* Matching DPDK RSS hash fields. */
unsigned int flow_priority; /* Flow priority to use. */
unsigned int ip_version; /* Internet protocol. */
};
/* Initialization data for hash RX queues. */
const struct hash_rxq_init hash_rxq_init[] = {
[HASH_RXQ_TCPV4] = {
.hash_fields = (IBV_RX_HASH_SRC_IPV4 |
IBV_RX_HASH_DST_IPV4 |
IBV_RX_HASH_SRC_PORT_TCP |
IBV_RX_HASH_DST_PORT_TCP),
.dpdk_rss_hf = ETH_RSS_NONFRAG_IPV4_TCP,
.flow_priority = 0,
.ip_version = MLX5_IPV4,
},
[HASH_RXQ_UDPV4] = {
.hash_fields = (IBV_RX_HASH_SRC_IPV4 |
IBV_RX_HASH_DST_IPV4 |
IBV_RX_HASH_SRC_PORT_UDP |
IBV_RX_HASH_DST_PORT_UDP),
.dpdk_rss_hf = ETH_RSS_NONFRAG_IPV4_UDP,
.flow_priority = 0,
.ip_version = MLX5_IPV4,
},
[HASH_RXQ_IPV4] = {
.hash_fields = (IBV_RX_HASH_SRC_IPV4 |
IBV_RX_HASH_DST_IPV4),
.dpdk_rss_hf = (ETH_RSS_IPV4 |
ETH_RSS_FRAG_IPV4),
.flow_priority = 1,
.ip_version = MLX5_IPV4,
},
[HASH_RXQ_TCPV6] = {
.hash_fields = (IBV_RX_HASH_SRC_IPV6 |
IBV_RX_HASH_DST_IPV6 |
IBV_RX_HASH_SRC_PORT_TCP |
IBV_RX_HASH_DST_PORT_TCP),
.dpdk_rss_hf = ETH_RSS_NONFRAG_IPV6_TCP,
.flow_priority = 0,
.ip_version = MLX5_IPV6,
},
[HASH_RXQ_UDPV6] = {
.hash_fields = (IBV_RX_HASH_SRC_IPV6 |
IBV_RX_HASH_DST_IPV6 |
IBV_RX_HASH_SRC_PORT_UDP |
IBV_RX_HASH_DST_PORT_UDP),
.dpdk_rss_hf = ETH_RSS_NONFRAG_IPV6_UDP,
.flow_priority = 0,
.ip_version = MLX5_IPV6,
},
[HASH_RXQ_IPV6] = {
.hash_fields = (IBV_RX_HASH_SRC_IPV6 |
IBV_RX_HASH_DST_IPV6),
.dpdk_rss_hf = (ETH_RSS_IPV6 |
ETH_RSS_FRAG_IPV6),
.flow_priority = 1,
.ip_version = MLX5_IPV6,
},
[HASH_RXQ_ETH] = {
.hash_fields = 0,
.dpdk_rss_hf = 0,
.flow_priority = 2,
},
};
/* Number of entries in hash_rxq_init[]. */
const unsigned int hash_rxq_init_n = RTE_DIM(hash_rxq_init);
/** Structure for holding counter stats. */
struct mlx5_flow_counter_stats {
uint64_t hits; /**< Number of packets matched by the rule. */
uint64_t bytes; /**< Number of bytes matched by the rule. */
};
/** Structure for Drop queue. */
struct mlx5_hrxq_drop {
struct ibv_rwq_ind_table *ind_table; /**< Indirection table. */
struct ibv_qp *qp; /**< Verbs queue pair. */
struct ibv_wq *wq; /**< Verbs work queue. */
struct ibv_cq *cq; /**< Verbs completion queue. */
};
/* Flows structures. */
struct mlx5_flow {
uint64_t hash_fields; /**< Fields that participate in the hash. */
struct ibv_flow_attr *ibv_attr; /**< Pointer to Verbs attributes. */
struct ibv_flow *ibv_flow; /**< Verbs flow. */
struct mlx5_hrxq *hrxq; /**< Hash Rx queues. */
};
/* Drop flows structures. */
struct mlx5_flow_drop {
struct ibv_flow_attr *ibv_attr; /**< Pointer to Verbs attributes. */
struct ibv_flow *ibv_flow; /**< Verbs flow. */
};
struct rte_flow {
TAILQ_ENTRY(rte_flow) next; /**< Pointer to the next flow structure. */
uint32_t mark:1; /**< Set if the flow is marked. */
uint32_t drop:1; /**< Drop queue. */
struct rte_flow_action_rss rss_conf; /**< RSS configuration */
uint16_t (*queues)[]; /**< Queues indexes to use. */
uint8_t rss_key[40]; /**< copy of the RSS key. */
uint32_t tunnel; /**< Tunnel type of RTE_PTYPE_TUNNEL_XXX. */
struct ibv_counter_set *cs; /**< Holds the counters for the rule. */
struct mlx5_flow_counter_stats counter_stats;/**<The counter stats. */
struct mlx5_flow frxq[RTE_DIM(hash_rxq_init)];
/**< Flow with Rx queue. */
};
/** Static initializer for items. */
#define ITEMS(...) \
(const enum rte_flow_item_type []){ \
__VA_ARGS__, RTE_FLOW_ITEM_TYPE_END, \
}
#define IS_TUNNEL(type) ( \
(type) == RTE_FLOW_ITEM_TYPE_VXLAN || \
(type) == RTE_FLOW_ITEM_TYPE_VXLAN_GPE || \
(type) == RTE_FLOW_ITEM_TYPE_GRE || \
(type) == RTE_FLOW_ITEM_TYPE_MPLS)
const uint32_t flow_ptype[] = {
[RTE_FLOW_ITEM_TYPE_VXLAN] = RTE_PTYPE_TUNNEL_VXLAN,
[RTE_FLOW_ITEM_TYPE_VXLAN_GPE] = RTE_PTYPE_TUNNEL_VXLAN_GPE,
[RTE_FLOW_ITEM_TYPE_GRE] = RTE_PTYPE_TUNNEL_GRE,
[RTE_FLOW_ITEM_TYPE_MPLS] = RTE_PTYPE_TUNNEL_MPLS_IN_GRE,
};
#define PTYPE_IDX(t) ((RTE_PTYPE_TUNNEL_MASK & (t)) >> 12)
const uint32_t ptype_ext[] = {
[PTYPE_IDX(RTE_PTYPE_TUNNEL_VXLAN)] = RTE_PTYPE_TUNNEL_VXLAN |
RTE_PTYPE_L4_UDP,
[PTYPE_IDX(RTE_PTYPE_TUNNEL_VXLAN_GPE)] = RTE_PTYPE_TUNNEL_VXLAN_GPE |
RTE_PTYPE_L4_UDP,
[PTYPE_IDX(RTE_PTYPE_TUNNEL_GRE)] = RTE_PTYPE_TUNNEL_GRE,
[PTYPE_IDX(RTE_PTYPE_TUNNEL_MPLS_IN_GRE)] =
RTE_PTYPE_TUNNEL_MPLS_IN_GRE,
[PTYPE_IDX(RTE_PTYPE_TUNNEL_MPLS_IN_UDP)] =
RTE_PTYPE_TUNNEL_MPLS_IN_GRE | RTE_PTYPE_L4_UDP,
};
/** Structure to generate a simple graph of layers supported by the NIC. */
struct mlx5_flow_items {
/** List of possible actions for these items. */
const enum rte_flow_action_type *const actions;
/** Bit-masks corresponding to the possibilities for the item. */
const void *mask;
/**
* Default bit-masks to use when item->mask is not provided. When
* \default_mask is also NULL, the full supported bit-mask (\mask) is
* used instead.
*/
const void *default_mask;
/** Bit-masks size in bytes. */
const unsigned int mask_sz;
/**
* Conversion function from rte_flow to NIC specific flow.
*
* @param item
* rte_flow item to convert.
* @param default_mask
* Default bit-masks to use when item->mask is not provided.
* @param data
* Internal structure to store the conversion.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is
* set.
*/
int (*convert)(const struct rte_flow_item *item,
const void *default_mask,
struct mlx5_flow_data *data);
/** Size in bytes of the destination structure. */
const unsigned int dst_sz;
/** List of possible following items. */
const enum rte_flow_item_type *const items;
};
/** Valid action for this PMD. */
static const enum rte_flow_action_type valid_actions[] = {
RTE_FLOW_ACTION_TYPE_DROP,
RTE_FLOW_ACTION_TYPE_QUEUE,
RTE_FLOW_ACTION_TYPE_MARK,
RTE_FLOW_ACTION_TYPE_FLAG,
#ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT
RTE_FLOW_ACTION_TYPE_COUNT,
#endif
RTE_FLOW_ACTION_TYPE_END,
};
/** Graph of supported items and associated actions. */
static const struct mlx5_flow_items mlx5_flow_items[] = {
[RTE_FLOW_ITEM_TYPE_END] = {
.items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH,
RTE_FLOW_ITEM_TYPE_VXLAN,
RTE_FLOW_ITEM_TYPE_VXLAN_GPE,
RTE_FLOW_ITEM_TYPE_GRE),
},
[RTE_FLOW_ITEM_TYPE_ETH] = {
.items = ITEMS(RTE_FLOW_ITEM_TYPE_VLAN,
RTE_FLOW_ITEM_TYPE_IPV4,
RTE_FLOW_ITEM_TYPE_IPV6),
.actions = valid_actions,
.mask = &(const struct rte_flow_item_eth){
.dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
.src.addr_bytes = "\xff\xff\xff\xff\xff\xff",
.type = -1,
},
.default_mask = &rte_flow_item_eth_mask,
.mask_sz = sizeof(struct rte_flow_item_eth),
.convert = mlx5_flow_create_eth,
.dst_sz = sizeof(struct ibv_flow_spec_eth),
},
[RTE_FLOW_ITEM_TYPE_VLAN] = {
.items = ITEMS(RTE_FLOW_ITEM_TYPE_IPV4,
RTE_FLOW_ITEM_TYPE_IPV6),
.actions = valid_actions,
.mask = &(const struct rte_flow_item_vlan){
.tci = -1,
.inner_type = -1,
},
.default_mask = &rte_flow_item_vlan_mask,
.mask_sz = sizeof(struct rte_flow_item_vlan),
.convert = mlx5_flow_create_vlan,
.dst_sz = 0,
},
[RTE_FLOW_ITEM_TYPE_IPV4] = {
.items = ITEMS(RTE_FLOW_ITEM_TYPE_UDP,
RTE_FLOW_ITEM_TYPE_TCP,
RTE_FLOW_ITEM_TYPE_GRE),
.actions = valid_actions,
.mask = &(const struct rte_flow_item_ipv4){
.hdr = {
.src_addr = -1,
.dst_addr = -1,
.type_of_service = -1,
.next_proto_id = -1,
},
},
.default_mask = &rte_flow_item_ipv4_mask,
.mask_sz = sizeof(struct rte_flow_item_ipv4),
.convert = mlx5_flow_create_ipv4,
.dst_sz = sizeof(struct ibv_flow_spec_ipv4_ext),
},
[RTE_FLOW_ITEM_TYPE_IPV6] = {
.items = ITEMS(RTE_FLOW_ITEM_TYPE_UDP,
RTE_FLOW_ITEM_TYPE_TCP,
RTE_FLOW_ITEM_TYPE_GRE),
.actions = valid_actions,
.mask = &(const struct rte_flow_item_ipv6){
.hdr = {
.src_addr = {
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
},
.dst_addr = {
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
},
.vtc_flow = -1,
.proto = -1,
.hop_limits = -1,
},
},
.default_mask = &rte_flow_item_ipv6_mask,
.mask_sz = sizeof(struct rte_flow_item_ipv6),
.convert = mlx5_flow_create_ipv6,
.dst_sz = sizeof(struct ibv_flow_spec_ipv6),
},
[RTE_FLOW_ITEM_TYPE_UDP] = {
.items = ITEMS(RTE_FLOW_ITEM_TYPE_VXLAN,
RTE_FLOW_ITEM_TYPE_VXLAN_GPE,
RTE_FLOW_ITEM_TYPE_MPLS),
.actions = valid_actions,
.mask = &(const struct rte_flow_item_udp){
.hdr = {
.src_port = -1,
.dst_port = -1,
},
},
.default_mask = &rte_flow_item_udp_mask,
.mask_sz = sizeof(struct rte_flow_item_udp),
.convert = mlx5_flow_create_udp,
.dst_sz = sizeof(struct ibv_flow_spec_tcp_udp),
},
[RTE_FLOW_ITEM_TYPE_TCP] = {
.actions = valid_actions,
.mask = &(const struct rte_flow_item_tcp){
.hdr = {
.src_port = -1,
.dst_port = -1,
},
},
.default_mask = &rte_flow_item_tcp_mask,
.mask_sz = sizeof(struct rte_flow_item_tcp),
.convert = mlx5_flow_create_tcp,
.dst_sz = sizeof(struct ibv_flow_spec_tcp_udp),
},
[RTE_FLOW_ITEM_TYPE_GRE] = {
.items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH,
RTE_FLOW_ITEM_TYPE_IPV4,
RTE_FLOW_ITEM_TYPE_IPV6,
RTE_FLOW_ITEM_TYPE_MPLS),
.actions = valid_actions,
.mask = &(const struct rte_flow_item_gre){
.protocol = -1,
},
.default_mask = &rte_flow_item_gre_mask,
.mask_sz = sizeof(struct rte_flow_item_gre),
.convert = mlx5_flow_create_gre,
#ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
.dst_sz = sizeof(struct ibv_flow_spec_gre),
#else
.dst_sz = sizeof(struct ibv_flow_spec_tunnel),
#endif
},
[RTE_FLOW_ITEM_TYPE_MPLS] = {
.items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH,
RTE_FLOW_ITEM_TYPE_IPV4,
RTE_FLOW_ITEM_TYPE_IPV6),
.actions = valid_actions,
.mask = &(const struct rte_flow_item_mpls){
.label_tc_s = "\xff\xff\xf0",
},
.default_mask = &rte_flow_item_mpls_mask,
.mask_sz = sizeof(struct rte_flow_item_mpls),
.convert = mlx5_flow_create_mpls,
#ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
.dst_sz = sizeof(struct ibv_flow_spec_mpls),
#endif
},
[RTE_FLOW_ITEM_TYPE_VXLAN] = {
.items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH,
RTE_FLOW_ITEM_TYPE_IPV4, /* For L3 VXLAN. */
RTE_FLOW_ITEM_TYPE_IPV6), /* For L3 VXLAN. */
.actions = valid_actions,
.mask = &(const struct rte_flow_item_vxlan){
.vni = "\xff\xff\xff",
},
.default_mask = &rte_flow_item_vxlan_mask,
.mask_sz = sizeof(struct rte_flow_item_vxlan),
.convert = mlx5_flow_create_vxlan,
.dst_sz = sizeof(struct ibv_flow_spec_tunnel),
},
[RTE_FLOW_ITEM_TYPE_VXLAN_GPE] = {
.items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH,
RTE_FLOW_ITEM_TYPE_IPV4,
RTE_FLOW_ITEM_TYPE_IPV6),
.actions = valid_actions,
.mask = &(const struct rte_flow_item_vxlan_gpe){
.vni = "\xff\xff\xff",
},
.default_mask = &rte_flow_item_vxlan_gpe_mask,
.mask_sz = sizeof(struct rte_flow_item_vxlan_gpe),
.convert = mlx5_flow_create_vxlan_gpe,
.dst_sz = sizeof(struct ibv_flow_spec_tunnel),
},
};
/** Structure to pass to the conversion function. */
struct mlx5_flow_parse {
uint32_t inner; /**< Verbs value, set once tunnel is encountered. */
uint32_t create:1;
/**< Whether resources should remain after a validate. */
uint32_t drop:1; /**< Target is a drop queue. */
uint32_t mark:1; /**< Mark is present in the flow. */
uint32_t count:1; /**< Count is present in the flow. */
uint32_t mark_id; /**< Mark identifier. */
struct rte_flow_action_rss rss_conf; /**< RSS configuration */
uint16_t queues[RTE_MAX_QUEUES_PER_PORT]; /**< Queues indexes to use. */
uint8_t rss_key[40]; /**< copy of the RSS key. */
enum hash_rxq_type layer; /**< Last pattern layer detected. */
enum hash_rxq_type out_layer; /**< Last outer pattern layer detected. */
uint32_t tunnel; /**< Tunnel type of RTE_PTYPE_TUNNEL_XXX. */
struct ibv_counter_set *cs; /**< Holds the counter set for the rule */
struct {
struct ibv_flow_attr *ibv_attr;
/**< Pointer to Verbs attributes. */
unsigned int offset;
/**< Current position or total size of the attribute. */
uint64_t hash_fields; /**< Verbs hash fields. */
} queue[RTE_DIM(hash_rxq_init)];
};
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,
#ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT
.query = mlx5_flow_query,
#else
.query = NULL,
#endif
.isolate = mlx5_flow_isolate,
};
/* Convert FDIR request to Generic flow. */
struct mlx5_fdir {
struct rte_flow_attr attr;
struct rte_flow_action actions[2];
struct rte_flow_item items[4];
struct rte_flow_item_eth l2;
struct rte_flow_item_eth l2_mask;
union {
struct rte_flow_item_ipv4 ipv4;
struct rte_flow_item_ipv6 ipv6;
} l3;
union {
struct rte_flow_item_ipv4 ipv4;
struct rte_flow_item_ipv6 ipv6;
} l3_mask;
union {
struct rte_flow_item_udp udp;
struct rte_flow_item_tcp tcp;
} l4;
union {
struct rte_flow_item_udp udp;
struct rte_flow_item_tcp tcp;
} l4_mask;
struct rte_flow_action_queue queue;
};
/* Verbs specification header. */
struct ibv_spec_header {
enum ibv_flow_spec_type type;
uint16_t size;
};
/**
* Check item is fully supported by the NIC matching capability.
*
* @param item[in]
* Item specification.
* @param mask[in]
* Bit-masks covering supported fields to compare with spec, last and mask in
* \item.
* @param size
* Bit-Mask size in bytes.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_item_validate(const struct rte_flow_item *item,
const uint8_t *mask, unsigned int size)
{
unsigned int i;
const uint8_t *spec = item->spec;
const uint8_t *last = item->last;
const uint8_t *m = item->mask ? item->mask : mask;
if (!spec && (item->mask || last))
goto error;
if (!spec)
return 0;
/*
* Single-pass check to make sure that:
* - item->mask is supported, no bits are set outside mask.
* - Both masked item->spec and item->last are equal (no range
* supported).
*/
for (i = 0; i < size; i++) {
if (!m[i])
continue;
if ((m[i] | mask[i]) != mask[i])
goto error;
if (last && ((spec[i] & m[i]) != (last[i] & m[i])))
goto error;
}
return 0;
error:
rte_errno = ENOTSUP;
return -rte_errno;
}
/**
* Extract attribute to the parser.
*
* @param[in] attr
* Flow rule attributes.
* @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
mlx5_flow_convert_attributes(const struct rte_flow_attr *attr,
struct rte_flow_error *error)
{
if (attr->group) {
rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
NULL,
"groups are not supported");
return -rte_errno;
}
if (attr->priority && attr->priority != MLX5_CTRL_FLOW_PRIORITY) {
rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
NULL,
"priorities are not supported");
return -rte_errno;
}
if (attr->egress) {
rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
NULL,
"egress is not supported");
return -rte_errno;
}
if (attr->transfer) {
rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
NULL,
"transfer is not supported");
return -rte_errno;
}
if (!attr->ingress) {
rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
NULL,
"only ingress is supported");
return -rte_errno;
}
return 0;
}
/**
* Extract actions request to the parser.
*
* @param dev
* Pointer to Ethernet device.
* @param[in] actions
* Associated actions (list terminated by the END action).
* @param[out] error
* Perform verbose error reporting if not NULL.
* @param[in, out] parser
* Internal parser structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_convert_actions(struct rte_eth_dev *dev,
const struct rte_flow_action actions[],
struct rte_flow_error *error,
struct mlx5_flow_parse *parser)
{
enum { FATE = 1, MARK = 2, COUNT = 4, };
uint32_t overlap = 0;
struct priv *priv = dev->data->dev_private;
for (; actions->type != RTE_FLOW_ACTION_TYPE_END; ++actions) {
if (actions->type == RTE_FLOW_ACTION_TYPE_VOID) {
continue;
} else if (actions->type == RTE_FLOW_ACTION_TYPE_DROP) {
if (overlap & FATE)
goto exit_action_overlap;
overlap |= FATE;
parser->drop = 1;
} else if (actions->type == RTE_FLOW_ACTION_TYPE_QUEUE) {
const struct rte_flow_action_queue *queue =
(const struct rte_flow_action_queue *)
actions->conf;
if (overlap & FATE)
goto exit_action_overlap;
overlap |= FATE;
if (!queue || (queue->index > (priv->rxqs_n - 1)))
goto exit_action_not_supported;
parser->queues[0] = queue->index;
parser->rss_conf = (struct rte_flow_action_rss){
.queue_num = 1,
.queue = parser->queues,
};
} else if (actions->type == RTE_FLOW_ACTION_TYPE_RSS) {
const struct rte_flow_action_rss *rss =
(const struct rte_flow_action_rss *)
actions->conf;
const uint8_t *rss_key;
uint32_t rss_key_len;
uint16_t n;
if (overlap & FATE)
goto exit_action_overlap;
overlap |= FATE;
if (rss->func &&
rss->func != RTE_ETH_HASH_FUNCTION_TOEPLITZ) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
actions,
"the only supported RSS hash"
" function is Toeplitz");
return -rte_errno;
}
#ifndef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
if (parser->rss_conf.level > 1) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
actions,
"a nonzero RSS encapsulation"
" level is not supported");
return -rte_errno;
}
#endif
if (parser->rss_conf.level > 2) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
actions,
"RSS encapsulation level"
" > 1 is not supported");
return -rte_errno;
}
if (rss->types & MLX5_RSS_HF_MASK) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
actions,
"unsupported RSS type"
" requested");
return -rte_errno;
}
if (rss->key_len) {
rss_key_len = rss->key_len;
rss_key = rss->key;
} else {
rss_key_len = rss_hash_default_key_len;
rss_key = rss_hash_default_key;
}
if (rss_key_len != RTE_DIM(parser->rss_key)) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
actions,
"RSS hash key must be"
" exactly 40 bytes long");
return -rte_errno;
}
if (!rss->queue_num) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
actions,
"no valid queues");
return -rte_errno;
}
if (rss->queue_num > RTE_DIM(parser->queues)) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
actions,
"too many queues for RSS"
" context");
return -rte_errno;
}
for (n = 0; n < rss->queue_num; ++n) {
if (rss->queue[n] >= priv->rxqs_n) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
actions,
"queue id > number of"
" queues");
return -rte_errno;
}
}
parser->rss_conf = (struct rte_flow_action_rss){
.func = RTE_ETH_HASH_FUNCTION_DEFAULT,
.level = rss->level ? rss->level : 1,
.types = rss->types,
.key_len = rss_key_len,
.queue_num = rss->queue_num,
.key = memcpy(parser->rss_key, rss_key,
sizeof(*rss_key) * rss_key_len),
.queue = memcpy(parser->queues, rss->queue,
sizeof(*rss->queue) *
rss->queue_num),
};
} else if (actions->type == RTE_FLOW_ACTION_TYPE_MARK) {
const struct rte_flow_action_mark *mark =
(const struct rte_flow_action_mark *)
actions->conf;
if (overlap & MARK)
goto exit_action_overlap;
overlap |= MARK;
if (!mark) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
actions,
"mark must be defined");
return -rte_errno;
} else if (mark->id >= MLX5_FLOW_MARK_MAX) {
rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION,
actions,
"mark must be between 0"
" and 16777199");
return -rte_errno;
}
parser->mark = 1;
parser->mark_id = mark->id;
} else if (actions->type == RTE_FLOW_ACTION_TYPE_FLAG) {
if (overlap & MARK)
goto exit_action_overlap;
overlap |= MARK;
parser->mark = 1;
} else if (actions->type == RTE_FLOW_ACTION_TYPE_COUNT &&
priv->config.flow_counter_en) {
if (overlap & COUNT)
goto exit_action_overlap;
overlap |= COUNT;
parser->count = 1;
} else {
goto exit_action_not_supported;
}
}
/* When fate is unknown, drop traffic. */
if (!(overlap & FATE))
parser->drop = 1;
if (parser->drop && parser->mark)
parser->mark = 0;
if (!parser->rss_conf.queue_num && !parser->drop) {
rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_HANDLE,
NULL, "no valid action");
return -rte_errno;
}
return 0;
exit_action_not_supported:
rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
actions, "action not supported");
return -rte_errno;
exit_action_overlap:
rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
actions, "overlapping actions are not supported");
return -rte_errno;
}
/**
* Validate items.
*
* @param[in] items
* Pattern specification (list terminated by the END pattern item).
* @param[out] error
* Perform verbose error reporting if not NULL.
* @param[in, out] parser
* Internal parser structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_convert_items_validate(struct rte_eth_dev *dev,
const struct rte_flow_item items[],
struct rte_flow_error *error,
struct mlx5_flow_parse *parser)
{
struct priv *priv = dev->data->dev_private;
const struct mlx5_flow_items *cur_item = mlx5_flow_items;
unsigned int i;
unsigned int last_voids = 0;
int ret = 0;
/* Initialise the offsets to start after verbs attribute. */
for (i = 0; i != hash_rxq_init_n; ++i)
parser->queue[i].offset = sizeof(struct ibv_flow_attr);
for (; items->type != RTE_FLOW_ITEM_TYPE_END; ++items) {
const struct mlx5_flow_items *token = NULL;
unsigned int n;
if (items->type == RTE_FLOW_ITEM_TYPE_VOID) {
last_voids++;
continue;
}
for (i = 0;
cur_item->items &&
cur_item->items[i] != RTE_FLOW_ITEM_TYPE_END;
++i) {
if (cur_item->items[i] == items->type) {
token = &mlx5_flow_items[items->type];
break;
}
}
if (!token) {
ret = -ENOTSUP;
goto exit_item_not_supported;
}
cur_item = token;
ret = mlx5_flow_item_validate(items,
(const uint8_t *)cur_item->mask,
cur_item->mask_sz);
if (ret)
goto exit_item_not_supported;
if (IS_TUNNEL(items->type)) {
if (parser->tunnel &&
!((items - last_voids - 1)->type ==
RTE_FLOW_ITEM_TYPE_GRE && items->type ==
RTE_FLOW_ITEM_TYPE_MPLS)) {
rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM,
items,
"Cannot recognize multiple"
" tunnel encapsulations.");
return -rte_errno;
}
if (items->type == RTE_FLOW_ITEM_TYPE_MPLS &&
!priv->config.mpls_en) {
rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM,
items,
"MPLS not supported or"
" disabled in firmware"
" configuration.");
return -rte_errno;
}
if (!priv->config.tunnel_en &&
parser->rss_conf.level > 1) {
rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM,
items,
"RSS on tunnel is not supported");
return -rte_errno;
}
parser->inner = IBV_FLOW_SPEC_INNER;
parser->tunnel = flow_ptype[items->type];
}
if (parser->drop) {
parser->queue[HASH_RXQ_ETH].offset += cur_item->dst_sz;
} else {
for (n = 0; n != hash_rxq_init_n; ++n)
parser->queue[n].offset += cur_item->dst_sz;
}
last_voids = 0;
}
if (parser->drop) {
parser->queue[HASH_RXQ_ETH].offset +=
sizeof(struct ibv_flow_spec_action_drop);
}
if (parser->mark) {
for (i = 0; i != hash_rxq_init_n; ++i)
parser->queue[i].offset +=
sizeof(struct ibv_flow_spec_action_tag);
}
if (parser->count) {
unsigned int size = sizeof(struct ibv_flow_spec_counter_action);
for (i = 0; i != hash_rxq_init_n; ++i)
parser->queue[i].offset += size;
}
return 0;
exit_item_not_supported:
return rte_flow_error_set(error, -ret, RTE_FLOW_ERROR_TYPE_ITEM,
items, "item not supported");
}
/**
* Allocate memory space to store verbs flow attributes.
*
* @param[in] size
* Amount of byte to allocate.
* @param[out] error
* Perform verbose error reporting if not NULL.
*
* @return
* A verbs flow attribute on success, NULL otherwise and rte_errno is set.
*/
static struct ibv_flow_attr *
mlx5_flow_convert_allocate(unsigned int size, struct rte_flow_error *error)
{
struct ibv_flow_attr *ibv_attr;
ibv_attr = rte_calloc(__func__, 1, size, 0);
if (!ibv_attr) {
rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL,
"cannot allocate verbs spec attributes");
return NULL;
}
return ibv_attr;
}
/**
* Make inner packet matching with an higher priority from the non Inner
* matching.
*
* @param dev
* Pointer to Ethernet device.
* @param[in, out] parser
* Internal parser structure.
* @param attr
* User flow attribute.
*/
static void
mlx5_flow_update_priority(struct rte_eth_dev *dev,
struct mlx5_flow_parse *parser,
const struct rte_flow_attr *attr)
{
struct priv *priv = dev->data->dev_private;
unsigned int i;
uint16_t priority;
/* 8 priorities >= 16 priorities
* Control flow: 4-7 8-15
* User normal flow: 1-3 4-7
* User tunnel flow: 0-2 0-3
*/
priority = attr->priority * MLX5_VERBS_FLOW_PRIO_8;
if (priv->config.max_verbs_prio == MLX5_VERBS_FLOW_PRIO_8)
priority /= 2;
/*
* Lower non-tunnel flow Verbs priority 1 if only support 8 Verbs
* priorities, lower 4 otherwise.
*/
if (!parser->inner) {
if (priv->config.max_verbs_prio == MLX5_VERBS_FLOW_PRIO_8)
priority += 1;
else
priority += MLX5_VERBS_FLOW_PRIO_8 / 2;
}
if (parser->drop) {
parser->queue[HASH_RXQ_ETH].ibv_attr->priority = priority +
hash_rxq_init[HASH_RXQ_ETH].flow_priority;
return;
}
for (i = 0; i != hash_rxq_init_n; ++i) {
if (!parser->queue[i].ibv_attr)
continue;
parser->queue[i].ibv_attr->priority = priority +
hash_rxq_init[i].flow_priority;
}
}
/**
* Finalise verbs flow attributes.
*
* @param[in, out] parser
* Internal parser structure.
*/
static void
mlx5_flow_convert_finalise(struct mlx5_flow_parse *parser)
{
unsigned int i;
uint32_t inner = parser->inner;
/* Don't create extra flows for outer RSS. */
if (parser->tunnel && parser->rss_conf.level < 2)
return;
/*
* Fill missing layers in verbs specifications, or compute the correct
* offset to allocate the memory space for the attributes and
* specifications.
*/
for (i = 0; i != hash_rxq_init_n - 1; ++i) {
union {
struct ibv_flow_spec_ipv4_ext ipv4;
struct ibv_flow_spec_ipv6 ipv6;
struct ibv_flow_spec_tcp_udp udp_tcp;
struct ibv_flow_spec_eth eth;
} specs;
void *dst;
uint16_t size;
if (i == parser->layer)
continue;
if (parser->layer == HASH_RXQ_ETH ||
parser->layer == HASH_RXQ_TUNNEL) {
if (hash_rxq_init[i].ip_version == MLX5_IPV4) {
size = sizeof(struct ibv_flow_spec_ipv4_ext);
specs.ipv4 = (struct ibv_flow_spec_ipv4_ext){
.type = inner | IBV_FLOW_SPEC_IPV4_EXT,
.size = size,
};
} else {
size = sizeof(struct ibv_flow_spec_ipv6);
specs.ipv6 = (struct ibv_flow_spec_ipv6){
.type = inner | IBV_FLOW_SPEC_IPV6,
.size = size,
};
}
if (parser->queue[i].ibv_attr) {
dst = (void *)((uintptr_t)
parser->queue[i].ibv_attr +
parser->queue[i].offset);
memcpy(dst, &specs, size);
++parser->queue[i].ibv_attr->num_of_specs;
}
parser->queue[i].offset += size;
}
if ((i == HASH_RXQ_UDPV4) || (i == HASH_RXQ_TCPV4) ||
(i == HASH_RXQ_UDPV6) || (i == HASH_RXQ_TCPV6)) {
size = sizeof(struct ibv_flow_spec_tcp_udp);
specs.udp_tcp = (struct ibv_flow_spec_tcp_udp) {
.type = inner | ((i == HASH_RXQ_UDPV4 ||
i == HASH_RXQ_UDPV6) ?
IBV_FLOW_SPEC_UDP :
IBV_FLOW_SPEC_TCP),
.size = size,
};
if (parser->queue[i].ibv_attr) {
dst = (void *)((uintptr_t)
parser->queue[i].ibv_attr +
parser->queue[i].offset);
memcpy(dst, &specs, size);
++parser->queue[i].ibv_attr->num_of_specs;
}
parser->queue[i].offset += size;
}
}
}
/**
* Update flows according to pattern and RSS hash fields.
*
* @param[in, out] parser
* Internal parser structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_convert_rss(struct mlx5_flow_parse *parser)
{
unsigned int i;
enum hash_rxq_type start;
enum hash_rxq_type layer;
int outer = parser->tunnel && parser->rss_conf.level < 2;
uint64_t rss = parser->rss_conf.types;
layer = outer ? parser->out_layer : parser->layer;
if (layer == HASH_RXQ_TUNNEL)
layer = HASH_RXQ_ETH;
if (outer) {
/* Only one hash type for outer RSS. */
if (rss && layer == HASH_RXQ_ETH) {
start = HASH_RXQ_TCPV4;
} else if (rss && layer != HASH_RXQ_ETH &&
!(rss & hash_rxq_init[layer].dpdk_rss_hf)) {
/* If RSS not match L4 pattern, try L3 RSS. */
if (layer < HASH_RXQ_IPV4)
layer = HASH_RXQ_IPV4;
else if (layer > HASH_RXQ_IPV4 && layer < HASH_RXQ_IPV6)
layer = HASH_RXQ_IPV6;
start = layer;
} else {
start = layer;
}
/* Scan first valid hash type. */
for (i = start; rss && i <= layer; ++i) {
if (!parser->queue[i].ibv_attr)
continue;
if (hash_rxq_init[i].dpdk_rss_hf & rss)
break;
}
if (rss && i <= layer)
parser->queue[layer].hash_fields =
hash_rxq_init[i].hash_fields;
/* Trim unused hash types. */
for (i = 0; i != hash_rxq_init_n; ++i) {
if (parser->queue[i].ibv_attr && i != layer) {
rte_free(parser->queue[i].ibv_attr);
parser->queue[i].ibv_attr = NULL;
}
}
} else {
/* Expand for inner or normal RSS. */
if (rss && (layer == HASH_RXQ_ETH || layer == HASH_RXQ_IPV4))
start = HASH_RXQ_TCPV4;
else if (rss && layer == HASH_RXQ_IPV6)
start = HASH_RXQ_TCPV6;
else
start = layer;
/* For L4 pattern, try L3 RSS if no L4 RSS. */
/* Trim unused hash types. */
for (i = 0; i != hash_rxq_init_n; ++i) {
if (!parser->queue[i].ibv_attr)
continue;
if (i < start || i > layer) {
rte_free(parser->queue[i].ibv_attr);
parser->queue[i].ibv_attr = NULL;
continue;
}
if (!rss)
continue;
if (hash_rxq_init[i].dpdk_rss_hf & rss) {
parser->queue[i].hash_fields =
hash_rxq_init[i].hash_fields;
} else if (i != layer) {
/* Remove unused RSS expansion. */
rte_free(parser->queue[i].ibv_attr);
parser->queue[i].ibv_attr = NULL;
} else if (layer < HASH_RXQ_IPV4 &&
(hash_rxq_init[HASH_RXQ_IPV4].dpdk_rss_hf &
rss)) {
/* Allow IPv4 RSS on L4 pattern. */
parser->queue[i].hash_fields =
hash_rxq_init[HASH_RXQ_IPV4]
.hash_fields;
} else if (i > HASH_RXQ_IPV4 && i < HASH_RXQ_IPV6 &&
(hash_rxq_init[HASH_RXQ_IPV6].dpdk_rss_hf &
rss)) {
/* Allow IPv4 RSS on L4 pattern. */
parser->queue[i].hash_fields =
hash_rxq_init[HASH_RXQ_IPV6]
.hash_fields;
}
}
}
return 0;
}
/**
* Validate and convert a flow supported by the NIC.
*
* @param dev
* Pointer to Ethernet device.
* @param[in] attr
* Flow rule attributes.
* @param[in] pattern
* Pattern specification (list terminated by the END pattern item).
* @param[in] actions
* Associated actions (list terminated by the END action).
* @param[out] error
* Perform verbose error reporting if not NULL.
* @param[in, out] parser
* Internal parser structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_convert(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_flow_parse *parser)
{
const struct mlx5_flow_items *cur_item = mlx5_flow_items;
unsigned int i;
int ret;
/* First step. Validate the attributes, items and actions. */
*parser = (struct mlx5_flow_parse){
.create = parser->create,
.layer = HASH_RXQ_ETH,
.mark_id = MLX5_FLOW_MARK_DEFAULT,
};
ret = mlx5_flow_convert_attributes(attr, error);
if (ret)
return ret;
ret = mlx5_flow_convert_actions(dev, actions, error, parser);
if (ret)
return ret;
ret = mlx5_flow_convert_items_validate(dev, items, error, parser);
if (ret)
return ret;
mlx5_flow_convert_finalise(parser);
/*
* Second step.
* Allocate the memory space to store verbs specifications.
*/
if (parser->drop) {
unsigned int offset = parser->queue[HASH_RXQ_ETH].offset;
parser->queue[HASH_RXQ_ETH].ibv_attr =
mlx5_flow_convert_allocate(offset, error);
if (!parser->queue[HASH_RXQ_ETH].ibv_attr)
goto exit_enomem;
parser->queue[HASH_RXQ_ETH].offset =
sizeof(struct ibv_flow_attr);
} else {
for (i = 0; i != hash_rxq_init_n; ++i) {
unsigned int offset;
offset = parser->queue[i].offset;
parser->queue[i].ibv_attr =
mlx5_flow_convert_allocate(offset, error);
if (!parser->queue[i].ibv_attr)
goto exit_enomem;
parser->queue[i].offset = sizeof(struct ibv_flow_attr);
}
}
/* Third step. Conversion parse, fill the specifications. */
parser->inner = 0;
parser->tunnel = 0;
parser->layer = HASH_RXQ_ETH;
for (; items->type != RTE_FLOW_ITEM_TYPE_END; ++items) {
struct mlx5_flow_data data = {
.dev = dev,
.parser = parser,
.error = error,
};
if (items->type == RTE_FLOW_ITEM_TYPE_VOID)
continue;
cur_item = &mlx5_flow_items[items->type];
ret = cur_item->convert(items,
(cur_item->default_mask ?
cur_item->default_mask :
cur_item->mask),
&data);
if (ret)
goto exit_free;
}
if (!parser->drop) {
/* RSS check, remove unused hash types. */
ret = mlx5_flow_convert_rss(parser);
if (ret)
goto exit_free;
/* Complete missing specification. */
mlx5_flow_convert_finalise(parser);
}
mlx5_flow_update_priority(dev, parser, attr);
if (parser->mark)
mlx5_flow_create_flag_mark(parser, parser->mark_id);
if (parser->count && parser->create) {
mlx5_flow_create_count(dev, parser);
if (!parser->cs)
goto exit_count_error;
}
exit_free:
/* Only verification is expected, all resources should be released. */
if (!parser->create) {
for (i = 0; i != hash_rxq_init_n; ++i) {
if (parser->queue[i].ibv_attr) {
rte_free(parser->queue[i].ibv_attr);
parser->queue[i].ibv_attr = NULL;
}
}
}
return ret;
exit_enomem:
for (i = 0; i != hash_rxq_init_n; ++i) {
if (parser->queue[i].ibv_attr) {
rte_free(parser->queue[i].ibv_attr);
parser->queue[i].ibv_attr = NULL;
}
}
rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL, "cannot allocate verbs spec attributes");
return -rte_errno;
exit_count_error:
rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL, "cannot create counter");
return -rte_errno;
}
/**
* Copy the specification created into the flow.
*
* @param parser
* Internal parser structure.
* @param src
* Create specification.
* @param size
* Size in bytes of the specification to copy.
*/
static void
mlx5_flow_create_copy(struct mlx5_flow_parse *parser, void *src,
unsigned int size)
{
unsigned int i;
void *dst;
for (i = 0; i != hash_rxq_init_n; ++i) {
if (!parser->queue[i].ibv_attr)
continue;
dst = (void *)((uintptr_t)parser->queue[i].ibv_attr +
parser->queue[i].offset);
memcpy(dst, src, size);
++parser->queue[i].ibv_attr->num_of_specs;
parser->queue[i].offset += size;
}
}
/**
* Convert Ethernet item to Verbs specification.
*
* @param item[in]
* Item specification.
* @param default_mask[in]
* Default bit-masks to use when item->mask is not provided.
* @param data[in, out]
* User structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_create_eth(const struct rte_flow_item *item,
const void *default_mask,
struct mlx5_flow_data *data)
{
const struct rte_flow_item_eth *spec = item->spec;
const struct rte_flow_item_eth *mask = item->mask;
struct mlx5_flow_parse *parser = data->parser;
const unsigned int eth_size = sizeof(struct ibv_flow_spec_eth);
struct ibv_flow_spec_eth eth = {
.type = parser->inner | IBV_FLOW_SPEC_ETH,
.size = eth_size,
};
parser->layer = HASH_RXQ_ETH;
if (spec) {
unsigned int i;
if (!mask)
mask = default_mask;
memcpy(&eth.val.dst_mac, spec->dst.addr_bytes, ETHER_ADDR_LEN);
memcpy(&eth.val.src_mac, spec->src.addr_bytes, ETHER_ADDR_LEN);
eth.val.ether_type = spec->type;
memcpy(&eth.mask.dst_mac, mask->dst.addr_bytes, ETHER_ADDR_LEN);
memcpy(&eth.mask.src_mac, mask->src.addr_bytes, ETHER_ADDR_LEN);
eth.mask.ether_type = mask->type;
/* Remove unwanted bits from values. */
for (i = 0; i < ETHER_ADDR_LEN; ++i) {
eth.val.dst_mac[i] &= eth.mask.dst_mac[i];
eth.val.src_mac[i] &= eth.mask.src_mac[i];
}
eth.val.ether_type &= eth.mask.ether_type;
}
mlx5_flow_create_copy(parser, &eth, eth_size);
return 0;
}
/**
* Convert VLAN item to Verbs specification.
*
* @param item[in]
* Item specification.
* @param default_mask[in]
* Default bit-masks to use when item->mask is not provided.
* @param data[in, out]
* User structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_create_vlan(const struct rte_flow_item *item,
const void *default_mask,
struct mlx5_flow_data *data)
{
const struct rte_flow_item_vlan *spec = item->spec;
const struct rte_flow_item_vlan *mask = item->mask;
struct mlx5_flow_parse *parser = data->parser;
struct ibv_flow_spec_eth *eth;
const unsigned int eth_size = sizeof(struct ibv_flow_spec_eth);
const char *msg = "VLAN cannot be empty";
if (spec) {
unsigned int i;
if (!mask)
mask = default_mask;
for (i = 0; i != hash_rxq_init_n; ++i) {
if (!parser->queue[i].ibv_attr)
continue;
eth = (void *)((uintptr_t)parser->queue[i].ibv_attr +
parser->queue[i].offset - eth_size);
eth->val.vlan_tag = spec->tci;
eth->mask.vlan_tag = mask->tci;
eth->val.vlan_tag &= eth->mask.vlan_tag;
/*
* From verbs perspective an empty VLAN is equivalent
* to a packet without VLAN layer.
*/
if (!eth->mask.vlan_tag)
goto error;
/* Outer TPID cannot be matched. */
if (eth->mask.ether_type) {
msg = "VLAN TPID matching is not supported";
goto error;
}
eth->val.ether_type = spec->inner_type;
eth->mask.ether_type = mask->inner_type;
eth->val.ether_type &= eth->mask.ether_type;
}
return 0;
}
error:
return rte_flow_error_set(data->error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM,
item, msg);
}
/**
* Convert IPv4 item to Verbs specification.
*
* @param item[in]
* Item specification.
* @param default_mask[in]
* Default bit-masks to use when item->mask is not provided.
* @param data[in, out]
* User structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_create_ipv4(const struct rte_flow_item *item,
const void *default_mask,
struct mlx5_flow_data *data)
{
struct priv *priv = data->dev->data->dev_private;
const struct rte_flow_item_ipv4 *spec = item->spec;
const struct rte_flow_item_ipv4 *mask = item->mask;
struct mlx5_flow_parse *parser = data->parser;
unsigned int ipv4_size = sizeof(struct ibv_flow_spec_ipv4_ext);
struct ibv_flow_spec_ipv4_ext ipv4 = {
.type = parser->inner | IBV_FLOW_SPEC_IPV4_EXT,
.size = ipv4_size,
};
if (parser->layer == HASH_RXQ_TUNNEL &&
parser->tunnel == ptype_ext[PTYPE_IDX(RTE_PTYPE_TUNNEL_VXLAN)] &&
!priv->config.l3_vxlan_en)
return rte_flow_error_set(data->error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"L3 VXLAN not enabled by device"
" parameter and/or not configured"
" in firmware");
parser->layer = HASH_RXQ_IPV4;
if (spec) {
if (!mask)
mask = default_mask;
ipv4.val = (struct ibv_flow_ipv4_ext_filter){
.src_ip = spec->hdr.src_addr,
.dst_ip = spec->hdr.dst_addr,
.proto = spec->hdr.next_proto_id,
.tos = spec->hdr.type_of_service,
};
ipv4.mask = (struct ibv_flow_ipv4_ext_filter){
.src_ip = mask->hdr.src_addr,
.dst_ip = mask->hdr.dst_addr,
.proto = mask->hdr.next_proto_id,
.tos = mask->hdr.type_of_service,
};
/* Remove unwanted bits from values. */
ipv4.val.src_ip &= ipv4.mask.src_ip;
ipv4.val.dst_ip &= ipv4.mask.dst_ip;
ipv4.val.proto &= ipv4.mask.proto;
ipv4.val.tos &= ipv4.mask.tos;
}
mlx5_flow_create_copy(parser, &ipv4, ipv4_size);
return 0;
}
/**
* Convert IPv6 item to Verbs specification.
*
* @param item[in]
* Item specification.
* @param default_mask[in]
* Default bit-masks to use when item->mask is not provided.
* @param data[in, out]
* User structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_create_ipv6(const struct rte_flow_item *item,
const void *default_mask,
struct mlx5_flow_data *data)
{
struct priv *priv = data->dev->data->dev_private;
const struct rte_flow_item_ipv6 *spec = item->spec;
const struct rte_flow_item_ipv6 *mask = item->mask;
struct mlx5_flow_parse *parser = data->parser;
unsigned int ipv6_size = sizeof(struct ibv_flow_spec_ipv6);
struct ibv_flow_spec_ipv6 ipv6 = {
.type = parser->inner | IBV_FLOW_SPEC_IPV6,
.size = ipv6_size,
};
if (parser->layer == HASH_RXQ_TUNNEL &&
parser->tunnel == ptype_ext[PTYPE_IDX(RTE_PTYPE_TUNNEL_VXLAN)] &&
!priv->config.l3_vxlan_en)
return rte_flow_error_set(data->error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"L3 VXLAN not enabled by device"
" parameter and/or not configured"
" in firmware");
parser->layer = HASH_RXQ_IPV6;
if (spec) {
unsigned int i;
uint32_t vtc_flow_val;
uint32_t vtc_flow_mask;
if (!mask)
mask = default_mask;
memcpy(&ipv6.val.src_ip, spec->hdr.src_addr,
RTE_DIM(ipv6.val.src_ip));
memcpy(&ipv6.val.dst_ip, spec->hdr.dst_addr,
RTE_DIM(ipv6.val.dst_ip));
memcpy(&ipv6.mask.src_ip, mask->hdr.src_addr,
RTE_DIM(ipv6.mask.src_ip));
memcpy(&ipv6.mask.dst_ip, mask->hdr.dst_addr,
RTE_DIM(ipv6.mask.dst_ip));
vtc_flow_val = rte_be_to_cpu_32(spec->hdr.vtc_flow);
vtc_flow_mask = rte_be_to_cpu_32(mask->hdr.vtc_flow);
ipv6.val.flow_label =
rte_cpu_to_be_32((vtc_flow_val & IPV6_HDR_FL_MASK) >>
IPV6_HDR_FL_SHIFT);
ipv6.val.traffic_class = (vtc_flow_val & IPV6_HDR_TC_MASK) >>
IPV6_HDR_TC_SHIFT;
ipv6.val.next_hdr = spec->hdr.proto;
ipv6.val.hop_limit = spec->hdr.hop_limits;
ipv6.mask.flow_label =
rte_cpu_to_be_32((vtc_flow_mask & IPV6_HDR_FL_MASK) >>
IPV6_HDR_FL_SHIFT);
ipv6.mask.traffic_class = (vtc_flow_mask & IPV6_HDR_TC_MASK) >>
IPV6_HDR_TC_SHIFT;
ipv6.mask.next_hdr = mask->hdr.proto;
ipv6.mask.hop_limit = mask->hdr.hop_limits;
/* Remove unwanted bits from values. */
for (i = 0; i < RTE_DIM(ipv6.val.src_ip); ++i) {
ipv6.val.src_ip[i] &= ipv6.mask.src_ip[i];
ipv6.val.dst_ip[i] &= ipv6.mask.dst_ip[i];
}
ipv6.val.flow_label &= ipv6.mask.flow_label;
ipv6.val.traffic_class &= ipv6.mask.traffic_class;
ipv6.val.next_hdr &= ipv6.mask.next_hdr;
ipv6.val.hop_limit &= ipv6.mask.hop_limit;
}
mlx5_flow_create_copy(parser, &ipv6, ipv6_size);
return 0;
}
/**
* Convert UDP item to Verbs specification.
*
* @param item[in]
* Item specification.
* @param default_mask[in]
* Default bit-masks to use when item->mask is not provided.
* @param data[in, out]
* User structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_create_udp(const struct rte_flow_item *item,
const void *default_mask,
struct mlx5_flow_data *data)
{
const struct rte_flow_item_udp *spec = item->spec;
const struct rte_flow_item_udp *mask = item->mask;
struct mlx5_flow_parse *parser = data->parser;
unsigned int udp_size = sizeof(struct ibv_flow_spec_tcp_udp);
struct ibv_flow_spec_tcp_udp udp = {
.type = parser->inner | IBV_FLOW_SPEC_UDP,
.size = udp_size,
};
if (parser->layer == HASH_RXQ_IPV4)
parser->layer = HASH_RXQ_UDPV4;
else
parser->layer = HASH_RXQ_UDPV6;
if (spec) {
if (!mask)
mask = default_mask;
udp.val.dst_port = spec->hdr.dst_port;
udp.val.src_port = spec->hdr.src_port;
udp.mask.dst_port = mask->hdr.dst_port;
udp.mask.src_port = mask->hdr.src_port;
/* Remove unwanted bits from values. */
udp.val.src_port &= udp.mask.src_port;
udp.val.dst_port &= udp.mask.dst_port;
}
mlx5_flow_create_copy(parser, &udp, udp_size);
return 0;
}
/**
* Convert TCP item to Verbs specification.
*
* @param item[in]
* Item specification.
* @param default_mask[in]
* Default bit-masks to use when item->mask is not provided.
* @param data[in, out]
* User structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_create_tcp(const struct rte_flow_item *item,
const void *default_mask,
struct mlx5_flow_data *data)
{
const struct rte_flow_item_tcp *spec = item->spec;
const struct rte_flow_item_tcp *mask = item->mask;
struct mlx5_flow_parse *parser = data->parser;
unsigned int tcp_size = sizeof(struct ibv_flow_spec_tcp_udp);
struct ibv_flow_spec_tcp_udp tcp = {
.type = parser->inner | IBV_FLOW_SPEC_TCP,
.size = tcp_size,
};
if (parser->layer == HASH_RXQ_IPV4)
parser->layer = HASH_RXQ_TCPV4;
else
parser->layer = HASH_RXQ_TCPV6;
if (spec) {
if (!mask)
mask = default_mask;
tcp.val.dst_port = spec->hdr.dst_port;
tcp.val.src_port = spec->hdr.src_port;
tcp.mask.dst_port = mask->hdr.dst_port;
tcp.mask.src_port = mask->hdr.src_port;
/* Remove unwanted bits from values. */
tcp.val.src_port &= tcp.mask.src_port;
tcp.val.dst_port &= tcp.mask.dst_port;
}
mlx5_flow_create_copy(parser, &tcp, tcp_size);
return 0;
}
/**
* Convert VXLAN item to Verbs specification.
*
* @param item[in]
* Item specification.
* @param default_mask[in]
* Default bit-masks to use when item->mask is not provided.
* @param data[in, out]
* User structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_create_vxlan(const struct rte_flow_item *item,
const void *default_mask,
struct mlx5_flow_data *data)
{
const struct rte_flow_item_vxlan *spec = item->spec;
const struct rte_flow_item_vxlan *mask = item->mask;
struct mlx5_flow_parse *parser = data->parser;
unsigned int size = sizeof(struct ibv_flow_spec_tunnel);
struct ibv_flow_spec_tunnel vxlan = {
.type = parser->inner | IBV_FLOW_SPEC_VXLAN_TUNNEL,
.size = size,
};
union vni {
uint32_t vlan_id;
uint8_t vni[4];
} id;
id.vni[0] = 0;
parser->inner = IBV_FLOW_SPEC_INNER;
parser->tunnel = ptype_ext[PTYPE_IDX(RTE_PTYPE_TUNNEL_VXLAN)];
parser->out_layer = parser->layer;
parser->layer = HASH_RXQ_TUNNEL;
if (spec) {
if (!mask)
mask = default_mask;
memcpy(&id.vni[1], spec->vni, 3);
vxlan.val.tunnel_id = id.vlan_id;
memcpy(&id.vni[1], mask->vni, 3);
vxlan.mask.tunnel_id = id.vlan_id;
/* Remove unwanted bits from values. */
vxlan.val.tunnel_id &= vxlan.mask.tunnel_id;
}
/*
* Tunnel id 0 is equivalent as not adding a VXLAN layer, if only this
* layer is defined in the Verbs specification it is interpreted as
* wildcard and all packets will match this rule, if it follows a full
* stack layer (ex: eth / ipv4 / udp), all packets matching the layers
* before will also match this rule.
* To avoid such situation, VNI 0 is currently refused.
*/
/* Only allow tunnel w/o tunnel id pattern after proper outer spec. */
if (parser->out_layer == HASH_RXQ_ETH && !vxlan.val.tunnel_id)
return rte_flow_error_set(data->error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"VxLAN vni cannot be 0");
mlx5_flow_create_copy(parser, &vxlan, size);
return 0;
}
/**
* Convert VXLAN-GPE item to Verbs specification.
*
* @param item[in]
* Item specification.
* @param default_mask[in]
* Default bit-masks to use when item->mask is not provided.
* @param data[in, out]
* User structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_create_vxlan_gpe(const struct rte_flow_item *item,
const void *default_mask,
struct mlx5_flow_data *data)
{
struct priv *priv = data->dev->data->dev_private;
const struct rte_flow_item_vxlan_gpe *spec = item->spec;
const struct rte_flow_item_vxlan_gpe *mask = item->mask;
struct mlx5_flow_parse *parser = data->parser;
unsigned int size = sizeof(struct ibv_flow_spec_tunnel);
struct ibv_flow_spec_tunnel vxlan = {
.type = parser->inner | IBV_FLOW_SPEC_VXLAN_TUNNEL,
.size = size,
};
union vni {
uint32_t vlan_id;
uint8_t vni[4];
} id;
if (!priv->config.l3_vxlan_en)
return rte_flow_error_set(data->error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"L3 VXLAN not enabled by device"
" parameter and/or not configured"
" in firmware");
id.vni[0] = 0;
parser->inner = IBV_FLOW_SPEC_INNER;
parser->tunnel = ptype_ext[PTYPE_IDX(RTE_PTYPE_TUNNEL_VXLAN_GPE)];
parser->out_layer = parser->layer;
parser->layer = HASH_RXQ_TUNNEL;
if (spec) {
if (!mask)
mask = default_mask;
memcpy(&id.vni[1], spec->vni, 3);
vxlan.val.tunnel_id = id.vlan_id;
memcpy(&id.vni[1], mask->vni, 3);
vxlan.mask.tunnel_id = id.vlan_id;
if (spec->protocol)
return rte_flow_error_set(data->error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"VxLAN-GPE protocol not"
" supported");
/* Remove unwanted bits from values. */
vxlan.val.tunnel_id &= vxlan.mask.tunnel_id;
}
/*
* Tunnel id 0 is equivalent as not adding a VXLAN layer, if only this
* layer is defined in the Verbs specification it is interpreted as
* wildcard and all packets will match this rule, if it follows a full
* stack layer (ex: eth / ipv4 / udp), all packets matching the layers
* before will also match this rule.
* To avoid such situation, VNI 0 is currently refused.
*/
/* Only allow tunnel w/o tunnel id pattern after proper outer spec. */
if (parser->out_layer == HASH_RXQ_ETH && !vxlan.val.tunnel_id)
return rte_flow_error_set(data->error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"VxLAN-GPE vni cannot be 0");
mlx5_flow_create_copy(parser, &vxlan, size);
return 0;
}
/**
* Convert GRE item to Verbs specification.
*
* @param item[in]
* Item specification.
* @param default_mask[in]
* Default bit-masks to use when item->mask is not provided.
* @param data[in, out]
* User structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_create_gre(const struct rte_flow_item *item,
const void *default_mask,
struct mlx5_flow_data *data)
{
struct mlx5_flow_parse *parser = data->parser;
#ifndef HAVE_IBV_DEVICE_MPLS_SUPPORT
(void)default_mask;
unsigned int size = sizeof(struct ibv_flow_spec_tunnel);
struct ibv_flow_spec_tunnel tunnel = {
.type = parser->inner | IBV_FLOW_SPEC_VXLAN_TUNNEL,
.size = size,
};
#else
const struct rte_flow_item_gre *spec = item->spec;
const struct rte_flow_item_gre *mask = item->mask;
unsigned int size = sizeof(struct ibv_flow_spec_gre);
struct ibv_flow_spec_gre tunnel = {
.type = parser->inner | IBV_FLOW_SPEC_GRE,
.size = size,
};
#endif
struct ibv_flow_spec_ipv4_ext *ipv4;
struct ibv_flow_spec_ipv6 *ipv6;
unsigned int i;
parser->inner = IBV_FLOW_SPEC_INNER;
parser->tunnel = ptype_ext[PTYPE_IDX(RTE_PTYPE_TUNNEL_GRE)];
parser->out_layer = parser->layer;
parser->layer = HASH_RXQ_TUNNEL;
#ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
if (spec) {
if (!mask)
mask = default_mask;
tunnel.val.c_ks_res0_ver = spec->c_rsvd0_ver;
tunnel.val.protocol = spec->protocol;
tunnel.mask.c_ks_res0_ver = mask->c_rsvd0_ver;
tunnel.mask.protocol = mask->protocol;
/* Remove unwanted bits from values. */
tunnel.val.c_ks_res0_ver &= tunnel.mask.c_ks_res0_ver;
tunnel.val.protocol &= tunnel.mask.protocol;
tunnel.val.key &= tunnel.mask.key;
}
#endif
/* Update encapsulation IP layer protocol. */
for (i = 0; i != hash_rxq_init_n; ++i) {
if (!parser->queue[i].ibv_attr)
continue;
if (parser->out_layer == HASH_RXQ_IPV4) {
ipv4 = (void *)((uintptr_t)parser->queue[i].ibv_attr +
parser->queue[i].offset -
sizeof(struct ibv_flow_spec_ipv4_ext));
if (ipv4->mask.proto && ipv4->val.proto != MLX5_GRE)
break;
ipv4->val.proto = MLX5_GRE;
ipv4->mask.proto = 0xff;
} else if (parser->out_layer == HASH_RXQ_IPV6) {
ipv6 = (void *)((uintptr_t)parser->queue[i].ibv_attr +
parser->queue[i].offset -
sizeof(struct ibv_flow_spec_ipv6));
if (ipv6->mask.next_hdr &&
ipv6->val.next_hdr != MLX5_GRE)
break;
ipv6->val.next_hdr = MLX5_GRE;
ipv6->mask.next_hdr = 0xff;
}
}
if (i != hash_rxq_init_n)
return rte_flow_error_set(data->error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"IP protocol of GRE must be 47");
mlx5_flow_create_copy(parser, &tunnel, size);
return 0;
}
/**
* Convert MPLS item to Verbs specification.
* MPLS tunnel types currently supported are MPLS-in-GRE and MPLS-in-UDP.
*
* @param item[in]
* Item specification.
* @param default_mask[in]
* Default bit-masks to use when item->mask is not provided.
* @param data[in, out]
* User structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_create_mpls(const struct rte_flow_item *item,
const void *default_mask,
struct mlx5_flow_data *data)
{
#ifndef HAVE_IBV_DEVICE_MPLS_SUPPORT
(void)default_mask;
return rte_flow_error_set(data->error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"MPLS is not supported by driver");
#else
const struct rte_flow_item_mpls *spec = item->spec;
const struct rte_flow_item_mpls *mask = item->mask;
struct mlx5_flow_parse *parser = data->parser;
unsigned int size = sizeof(struct ibv_flow_spec_mpls);
struct ibv_flow_spec_mpls mpls = {
.type = IBV_FLOW_SPEC_MPLS,
.size = size,
};
parser->inner = IBV_FLOW_SPEC_INNER;
if (parser->layer == HASH_RXQ_UDPV4 ||
parser->layer == HASH_RXQ_UDPV6) {
parser->tunnel =
ptype_ext[PTYPE_IDX(RTE_PTYPE_TUNNEL_MPLS_IN_UDP)];
parser->out_layer = parser->layer;
} else {
parser->tunnel =
ptype_ext[PTYPE_IDX(RTE_PTYPE_TUNNEL_MPLS_IN_GRE)];
/* parser->out_layer stays as in GRE out_layer. */
}
parser->layer = HASH_RXQ_TUNNEL;
if (spec) {
if (!mask)
mask = default_mask;
/*
* The verbs label field includes the entire MPLS header:
* bits 0:19 - label value field.
* bits 20:22 - traffic class field.
* bits 23 - bottom of stack bit.
* bits 24:31 - ttl field.
*/
mpls.val.label = *(const uint32_t *)spec;
mpls.mask.label = *(const uint32_t *)mask;
/* Remove unwanted bits from values. */
mpls.val.label &= mpls.mask.label;
}
mlx5_flow_create_copy(parser, &mpls, size);
return 0;
#endif
}
/**
* Convert mark/flag action to Verbs specification.
*
* @param parser
* Internal parser structure.
* @param mark_id
* Mark identifier.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_create_flag_mark(struct mlx5_flow_parse *parser, uint32_t mark_id)
{
unsigned int size = sizeof(struct ibv_flow_spec_action_tag);
struct ibv_flow_spec_action_tag tag = {
.type = IBV_FLOW_SPEC_ACTION_TAG,
.size = size,
.tag_id = mlx5_flow_mark_set(mark_id),
};
assert(parser->mark);
mlx5_flow_create_copy(parser, &tag, size);
return 0;
}
/**
* Convert count action to Verbs specification.
*
* @param dev
* Pointer to Ethernet device.
* @param parser
* Pointer to MLX5 flow parser structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_create_count(struct rte_eth_dev *dev __rte_unused,
struct mlx5_flow_parse *parser __rte_unused)
{
#ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT
struct priv *priv = dev->data->dev_private;
unsigned int size = sizeof(struct ibv_flow_spec_counter_action);
struct ibv_counter_set_init_attr init_attr = {0};
struct ibv_flow_spec_counter_action counter = {
.type = IBV_FLOW_SPEC_ACTION_COUNT,
.size = size,
.counter_set_handle = 0,
};
init_attr.counter_set_id = 0;
parser->cs = mlx5_glue->create_counter_set(priv->ctx, &init_attr);
if (!parser->cs) {
rte_errno = EINVAL;
return -rte_errno;
}
counter.counter_set_handle = parser->cs->handle;
mlx5_flow_create_copy(parser, &counter, size);
#endif
return 0;
}
/**
* Complete flow rule creation with a drop queue.
*
* @param dev
* Pointer to Ethernet device.
* @param parser
* Internal parser structure.
* @param flow
* Pointer to the rte_flow.
* @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
mlx5_flow_create_action_queue_drop(struct rte_eth_dev *dev,
struct mlx5_flow_parse *parser,
struct rte_flow *flow,
struct rte_flow_error *error)
{
struct priv *priv = dev->data->dev_private;
struct ibv_flow_spec_action_drop *drop;
unsigned int size = sizeof(struct ibv_flow_spec_action_drop);
assert(priv->pd);
assert(priv->ctx);
flow->drop = 1;
drop = (void *)((uintptr_t)parser->queue[HASH_RXQ_ETH].ibv_attr +
parser->queue[HASH_RXQ_ETH].offset);
*drop = (struct ibv_flow_spec_action_drop){
.type = IBV_FLOW_SPEC_ACTION_DROP,
.size = size,
};
++parser->queue[HASH_RXQ_ETH].ibv_attr->num_of_specs;
parser->queue[HASH_RXQ_ETH].offset += size;
flow->frxq[HASH_RXQ_ETH].ibv_attr =
parser->queue[HASH_RXQ_ETH].ibv_attr;
if (parser->count)
flow->cs = parser->cs;
if (!dev->data->dev_started)
return 0;
parser->queue[HASH_RXQ_ETH].ibv_attr = NULL;
flow->frxq[HASH_RXQ_ETH].ibv_flow =
mlx5_glue->create_flow(priv->flow_drop_queue->qp,
flow->frxq[HASH_RXQ_ETH].ibv_attr);
if (!flow->frxq[HASH_RXQ_ETH].ibv_flow) {
rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
NULL, "flow rule creation failure");
goto error;
}
return 0;
error:
assert(flow);
if (flow->frxq[HASH_RXQ_ETH].ibv_flow) {
claim_zero(mlx5_glue->destroy_flow
(flow->frxq[HASH_RXQ_ETH].ibv_flow));
flow->frxq[HASH_RXQ_ETH].ibv_flow = NULL;
}
if (flow->frxq[HASH_RXQ_ETH].ibv_attr) {
rte_free(flow->frxq[HASH_RXQ_ETH].ibv_attr);
flow->frxq[HASH_RXQ_ETH].ibv_attr = NULL;
}
if (flow->cs) {
claim_zero(mlx5_glue->destroy_counter_set(flow->cs));
flow->cs = NULL;
parser->cs = NULL;
}
return -rte_errno;
}
/**
* Create hash Rx queues when RSS is enabled.
*
* @param dev
* Pointer to Ethernet device.
* @param parser
* Internal parser structure.
* @param flow
* Pointer to the rte_flow.
* @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
mlx5_flow_create_action_queue_rss(struct rte_eth_dev *dev,
struct mlx5_flow_parse *parser,
struct rte_flow *flow,
struct rte_flow_error *error)
{
unsigned int i;
for (i = 0; i != hash_rxq_init_n; ++i) {
if (!parser->queue[i].ibv_attr)
continue;
flow->frxq[i].ibv_attr = parser->queue[i].ibv_attr;
parser->queue[i].ibv_attr = NULL;
flow->frxq[i].hash_fields = parser->queue[i].hash_fields;
if (!dev->data->dev_started)
continue;
flow->frxq[i].hrxq =
mlx5_hrxq_get(dev,
parser->rss_conf.key,
parser->rss_conf.key_len,
flow->frxq[i].hash_fields,
parser->rss_conf.queue,
parser->rss_conf.queue_num,
parser->tunnel,
parser->rss_conf.level);
if (flow->frxq[i].hrxq)
continue;
flow->frxq[i].hrxq =
mlx5_hrxq_new(dev,
parser->rss_conf.key,
parser->rss_conf.key_len,
flow->frxq[i].hash_fields,
parser->rss_conf.queue,
parser->rss_conf.queue_num,
parser->tunnel,
parser->rss_conf.level);
if (!flow->frxq[i].hrxq) {
return rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_HANDLE,
NULL,
"cannot create hash rxq");
}
}
return 0;
}
/**
* RXQ update after flow rule creation.
*
* @param dev
* Pointer to Ethernet device.
* @param flow
* Pointer to the flow rule.
*/
static void
mlx5_flow_create_update_rxqs(struct rte_eth_dev *dev, struct rte_flow *flow)
{
struct priv *priv = dev->data->dev_private;
unsigned int i;
unsigned int j;
if (!dev->data->dev_started)
return;
for (i = 0; i != flow->rss_conf.queue_num; ++i) {
struct mlx5_rxq_data *rxq_data = (*priv->rxqs)
[(*flow->queues)[i]];
struct mlx5_rxq_ctrl *rxq_ctrl =
container_of(rxq_data, struct mlx5_rxq_ctrl, rxq);
uint8_t tunnel = PTYPE_IDX(flow->tunnel);
rxq_data->mark |= flow->mark;
if (!tunnel)
continue;
rxq_ctrl->tunnel_types[tunnel] += 1;
/* Clear tunnel type if more than one tunnel types set. */
for (j = 0; j != RTE_DIM(rxq_ctrl->tunnel_types); ++j) {
if (j == tunnel)
continue;
if (rxq_ctrl->tunnel_types[j] > 0) {
rxq_data->tunnel = 0;
break;
}
}
if (j == RTE_DIM(rxq_ctrl->tunnel_types))
rxq_data->tunnel = flow->tunnel;
}
}
/**
* Dump flow hash RX queue detail.
*
* @param dev
* Pointer to Ethernet device.
* @param flow
* Pointer to the rte_flow.
* @param hrxq_idx
* Hash RX queue index.
*/
static void
mlx5_flow_dump(struct rte_eth_dev *dev __rte_unused,
struct rte_flow *flow __rte_unused,
unsigned int hrxq_idx __rte_unused)
{
#ifndef NDEBUG
uintptr_t spec_ptr;
uint16_t j;
char buf[256];
uint8_t off;
uint64_t extra_hash_fields = 0;
#ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
if (flow->tunnel && flow->rss_conf.level > 1)
extra_hash_fields = (uint32_t)IBV_RX_HASH_INNER;
#endif
spec_ptr = (uintptr_t)(flow->frxq[hrxq_idx].ibv_attr + 1);
for (j = 0, off = 0; j < flow->frxq[hrxq_idx].ibv_attr->num_of_specs;
j++) {
struct ibv_flow_spec *spec = (void *)spec_ptr;
off += sprintf(buf + off, " %x(%hu)", spec->hdr.type,
spec->hdr.size);
spec_ptr += spec->hdr.size;
}
DRV_LOG(DEBUG,
"port %u Verbs flow %p type %u: hrxq:%p qp:%p ind:%p,"
" hash:%" PRIx64 "/%u specs:%hhu(%hu), priority:%hu, type:%d,"
" flags:%x, comp_mask:%x specs:%s",
dev->data->port_id, (void *)flow, hrxq_idx,
(void *)flow->frxq[hrxq_idx].hrxq,
(void *)flow->frxq[hrxq_idx].hrxq->qp,
(void *)flow->frxq[hrxq_idx].hrxq->ind_table,
(flow->frxq[hrxq_idx].hash_fields | extra_hash_fields),
flow->rss_conf.queue_num,
flow->frxq[hrxq_idx].ibv_attr->num_of_specs,
flow->frxq[hrxq_idx].ibv_attr->size,
flow->frxq[hrxq_idx].ibv_attr->priority,
flow->frxq[hrxq_idx].ibv_attr->type,
flow->frxq[hrxq_idx].ibv_attr->flags,
flow->frxq[hrxq_idx].ibv_attr->comp_mask,
buf);
#endif
}
/**
* Complete flow rule creation.
*
* @param dev
* Pointer to Ethernet device.
* @param parser
* Internal parser structure.
* @param flow
* Pointer to the rte_flow.
* @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
mlx5_flow_create_action_queue(struct rte_eth_dev *dev,
struct mlx5_flow_parse *parser,
struct rte_flow *flow,
struct rte_flow_error *error)
{
struct priv *priv __rte_unused = dev->data->dev_private;
int ret;
unsigned int i;
unsigned int flows_n = 0;
assert(priv->pd);
assert(priv->ctx);
assert(!parser->drop);
ret = mlx5_flow_create_action_queue_rss(dev, parser, flow, error);
if (ret)
goto error;
if (parser->count)
flow->cs = parser->cs;
if (!dev->data->dev_started)
return 0;
for (i = 0; i != hash_rxq_init_n; ++i) {
if (!flow->frxq[i].hrxq)
continue;
flow->frxq[i].ibv_flow =
mlx5_glue->create_flow(flow->frxq[i].hrxq->qp,
flow->frxq[i].ibv_attr);
mlx5_flow_dump(dev, flow, i);
if (!flow->frxq[i].ibv_flow) {
rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_HANDLE,
NULL, "flow rule creation failure");
goto error;
}
++flows_n;
}
if (!flows_n) {
rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_HANDLE,
NULL, "internal error in flow creation");
goto error;
}
mlx5_flow_create_update_rxqs(dev, flow);
return 0;
error:
ret = rte_errno; /* Save rte_errno before cleanup. */
assert(flow);
for (i = 0; i != hash_rxq_init_n; ++i) {
if (flow->frxq[i].ibv_flow) {
struct ibv_flow *ibv_flow = flow->frxq[i].ibv_flow;
claim_zero(mlx5_glue->destroy_flow(ibv_flow));
}
if (flow->frxq[i].hrxq)
mlx5_hrxq_release(dev, flow->frxq[i].hrxq);
if (flow->frxq[i].ibv_attr)
rte_free(flow->frxq[i].ibv_attr);
}
if (flow->cs) {
claim_zero(mlx5_glue->destroy_counter_set(flow->cs));
flow->cs = NULL;
parser->cs = NULL;
}
rte_errno = ret; /* Restore rte_errno. */
return -rte_errno;
}
/**
* Convert a flow.
*
* @param dev
* Pointer to Ethernet device.
* @param list
* Pointer to a TAILQ flow list.
* @param[in] attr
* Flow rule attributes.
* @param[in] pattern
* Pattern specification (list terminated by the END pattern item).
* @param[in] actions
* Associated actions (list terminated by the END action).
* @param[out] error
* Perform verbose error reporting if not NULL.
*
* @return
* A flow on success, NULL otherwise and rte_errno is set.
*/
static struct rte_flow *
mlx5_flow_list_create(struct rte_eth_dev *dev,
struct mlx5_flows *list,
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_flow_parse parser = { .create = 1, };
struct rte_flow *flow = NULL;
unsigned int i;
int ret;
ret = mlx5_flow_convert(dev, attr, items, actions, error, &parser);
if (ret)
goto exit;
flow = rte_calloc(__func__, 1,
sizeof(*flow) +
parser.rss_conf.queue_num * sizeof(uint16_t),
0);
if (!flow) {
rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL,
"cannot allocate flow memory");
return NULL;
}
/* Copy configuration. */
flow->queues = (uint16_t (*)[])(flow + 1);
flow->tunnel = parser.tunnel;
flow->rss_conf = (struct rte_flow_action_rss){
.func = RTE_ETH_HASH_FUNCTION_DEFAULT,
.level = parser.rss_conf.level,
.types = parser.rss_conf.types,
.key_len = parser.rss_conf.key_len,
.queue_num = parser.rss_conf.queue_num,
.key = memcpy(flow->rss_key, parser.rss_conf.key,
sizeof(*parser.rss_conf.key) *
parser.rss_conf.key_len),
.queue = memcpy(flow->queues, parser.rss_conf.queue,
sizeof(*parser.rss_conf.queue) *
parser.rss_conf.queue_num),
};
flow->mark = parser.mark;
/* finalise the flow. */
if (parser.drop)
ret = mlx5_flow_create_action_queue_drop(dev, &parser, flow,
error);
else
ret = mlx5_flow_create_action_queue(dev, &parser, flow, error);
if (ret)
goto exit;
TAILQ_INSERT_TAIL(list, flow, next);
DRV_LOG(DEBUG, "port %u flow created %p", dev->data->port_id,
(void *)flow);
return flow;
exit:
DRV_LOG(ERR, "port %u flow creation error: %s", dev->data->port_id,
error->message);
for (i = 0; i != hash_rxq_init_n; ++i) {
if (parser.queue[i].ibv_attr)
rte_free(parser.queue[i].ibv_attr);
}
rte_free(flow);
return NULL;
}
/**
* 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 actions[],
struct rte_flow_error *error)
{
struct mlx5_flow_parse parser = { .create = 0, };
return mlx5_flow_convert(dev, attr, items, actions, error, &parser);
}
/**
* 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 priv *priv = dev->data->dev_private;
return mlx5_flow_list_create(dev, &priv->flows, attr, items, actions,
error);
}
/**
* Destroy a flow in a list.
*
* @param dev
* Pointer to Ethernet device.
* @param list
* Pointer to a TAILQ flow list.
* @param[in] flow
* Flow to destroy.
*/
static void
mlx5_flow_list_destroy(struct rte_eth_dev *dev, struct mlx5_flows *list,
struct rte_flow *flow)
{
struct priv *priv = dev->data->dev_private;
unsigned int i;
if (flow->drop || !dev->data->dev_started)
goto free;
for (i = 0; flow->tunnel && i != flow->rss_conf.queue_num; ++i) {
/* Update queue tunnel type. */
struct mlx5_rxq_data *rxq_data = (*priv->rxqs)
[(*flow->queues)[i]];
struct mlx5_rxq_ctrl *rxq_ctrl =
container_of(rxq_data, struct mlx5_rxq_ctrl, rxq);
uint8_t tunnel = PTYPE_IDX(flow->tunnel);
assert(rxq_ctrl->tunnel_types[tunnel] > 0);
rxq_ctrl->tunnel_types[tunnel] -= 1;
if (!rxq_ctrl->tunnel_types[tunnel]) {
/* Update tunnel type. */
uint8_t j;
uint8_t types = 0;
uint8_t last;
for (j = 0; j < RTE_DIM(rxq_ctrl->tunnel_types); j++)
if (rxq_ctrl->tunnel_types[j]) {
types += 1;
last = j;
}
/* Keep same if more than one tunnel types left. */
if (types == 1)
rxq_data->tunnel = ptype_ext[last];
else if (types == 0)
/* No tunnel type left. */
rxq_data->tunnel = 0;
}
}
for (i = 0; flow->mark && i != flow->rss_conf.queue_num; ++i) {
struct rte_flow *tmp;
int mark = 0;
/*
* To remove the mark from the queue, the queue must not be
* present in any other marked flow (RSS or not).
*/
TAILQ_FOREACH(tmp, list, next) {
unsigned int j;
uint16_t *tqs = NULL;
uint16_t tq_n = 0;
if (!tmp->mark)
continue;
for (j = 0; j != hash_rxq_init_n; ++j) {
if (!tmp->frxq[j].hrxq)
continue;
tqs = tmp->frxq[j].hrxq->ind_table->queues;
tq_n = tmp->frxq[j].hrxq->ind_table->queues_n;
}
if (!tq_n)
continue;
for (j = 0; (j != tq_n) && !mark; j++)
if (tqs[j] == (*flow->queues)[i])
mark = 1;
}
(*priv->rxqs)[(*flow->queues)[i]]->mark = mark;
}
free:
if (flow->drop) {
if (flow->frxq[HASH_RXQ_ETH].ibv_flow)
claim_zero(mlx5_glue->destroy_flow
(flow->frxq[HASH_RXQ_ETH].ibv_flow));
rte_free(flow->frxq[HASH_RXQ_ETH].ibv_attr);
} else {
for (i = 0; i != hash_rxq_init_n; ++i) {
struct mlx5_flow *frxq = &flow->frxq[i];
if (frxq->ibv_flow)
claim_zero(mlx5_glue->destroy_flow
(frxq->ibv_flow));
if (frxq->hrxq)
mlx5_hrxq_release(dev, frxq->hrxq);
if (frxq->ibv_attr)
rte_free(frxq->ibv_attr);
}
}
if (flow->cs) {
claim_zero(mlx5_glue->destroy_counter_set(flow->cs));
flow->cs = NULL;
}
TAILQ_REMOVE(list, flow, next);
DRV_LOG(DEBUG, "port %u flow destroyed %p", dev->data->port_id,
(void *)flow);
rte_free(flow);
}
/**
* Destroy all flows.
*
* @param dev
* Pointer to Ethernet device.
* @param list
* Pointer to a TAILQ flow list.
*/
void
mlx5_flow_list_flush(struct rte_eth_dev *dev, struct mlx5_flows *list)
{
while (!TAILQ_EMPTY(list)) {
struct rte_flow *flow;
flow = TAILQ_FIRST(list);
mlx5_flow_list_destroy(dev, list, flow);
}
}
/**
* Create drop queue.
*
* @param dev
* Pointer to Ethernet device.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_create_drop_queue(struct rte_eth_dev *dev)
{
struct priv *priv = dev->data->dev_private;
struct mlx5_hrxq_drop *fdq = NULL;
assert(priv->pd);
assert(priv->ctx);
fdq = rte_calloc(__func__, 1, sizeof(*fdq), 0);
if (!fdq) {
DRV_LOG(WARNING,
"port %u cannot allocate memory for drop queue",
dev->data->port_id);
rte_errno = ENOMEM;
return -rte_errno;
}
fdq->cq = mlx5_glue->create_cq(priv->ctx, 1, NULL, NULL, 0);
if (!fdq->cq) {
DRV_LOG(WARNING, "port %u cannot allocate CQ for drop queue",
dev->data->port_id);
rte_errno = errno;
goto error;
}
fdq->wq = mlx5_glue->create_wq
(priv->ctx,
&(struct ibv_wq_init_attr){
.wq_type = IBV_WQT_RQ,
.max_wr = 1,
.max_sge = 1,
.pd = priv->pd,
.cq = fdq->cq,
});
if (!fdq->wq) {
DRV_LOG(WARNING, "port %u cannot allocate WQ for drop queue",
dev->data->port_id);
rte_errno = errno;
goto error;
}
fdq->ind_table = mlx5_glue->create_rwq_ind_table
(priv->ctx,
&(struct ibv_rwq_ind_table_init_attr){
.log_ind_tbl_size = 0,
.ind_tbl = &fdq->wq,
.comp_mask = 0,
});
if (!fdq->ind_table) {
DRV_LOG(WARNING,
"port %u cannot allocate indirection table for drop"
" queue",
dev->data->port_id);
rte_errno = errno;
goto error;
}
fdq->qp = mlx5_glue->create_qp_ex
(priv->ctx,
&(struct ibv_qp_init_attr_ex){
.qp_type = IBV_QPT_RAW_PACKET,
.comp_mask =
IBV_QP_INIT_ATTR_PD |
IBV_QP_INIT_ATTR_IND_TABLE |
IBV_QP_INIT_ATTR_RX_HASH,
.rx_hash_conf = (struct ibv_rx_hash_conf){
.rx_hash_function =
IBV_RX_HASH_FUNC_TOEPLITZ,
.rx_hash_key_len = rss_hash_default_key_len,
.rx_hash_key = rss_hash_default_key,
.rx_hash_fields_mask = 0,
},
.rwq_ind_tbl = fdq->ind_table,
.pd = priv->pd
});
if (!fdq->qp) {
DRV_LOG(WARNING, "port %u cannot allocate QP for drop queue",
dev->data->port_id);
rte_errno = errno;
goto error;
}
priv->flow_drop_queue = fdq;
return 0;
error:
if (fdq->qp)
claim_zero(mlx5_glue->destroy_qp(fdq->qp));
if (fdq->ind_table)
claim_zero(mlx5_glue->destroy_rwq_ind_table(fdq->ind_table));
if (fdq->wq)
claim_zero(mlx5_glue->destroy_wq(fdq->wq));
if (fdq->cq)
claim_zero(mlx5_glue->destroy_cq(fdq->cq));
if (fdq)
rte_free(fdq);
priv->flow_drop_queue = NULL;
return -rte_errno;
}
/**
* Delete drop queue.
*
* @param dev
* Pointer to Ethernet device.
*/
void
mlx5_flow_delete_drop_queue(struct rte_eth_dev *dev)
{
struct priv *priv = dev->data->dev_private;
struct mlx5_hrxq_drop *fdq = priv->flow_drop_queue;
if (!fdq)
return;
if (fdq->qp)
claim_zero(mlx5_glue->destroy_qp(fdq->qp));
if (fdq->ind_table)
claim_zero(mlx5_glue->destroy_rwq_ind_table(fdq->ind_table));
if (fdq->wq)
claim_zero(mlx5_glue->destroy_wq(fdq->wq));
if (fdq->cq)
claim_zero(mlx5_glue->destroy_cq(fdq->cq));
rte_free(fdq);
priv->flow_drop_queue = NULL;
}
/**
* Remove all flows.
*
* @param dev
* Pointer to Ethernet device.
* @param list
* Pointer to a TAILQ flow list.
*/
void
mlx5_flow_stop(struct rte_eth_dev *dev, struct mlx5_flows *list)
{
struct priv *priv = dev->data->dev_private;
struct rte_flow *flow;
unsigned int i;
TAILQ_FOREACH_REVERSE(flow, list, mlx5_flows, next) {
struct mlx5_ind_table_ibv *ind_tbl = NULL;
if (flow->drop) {
if (!flow->frxq[HASH_RXQ_ETH].ibv_flow)
continue;
claim_zero(mlx5_glue->destroy_flow
(flow->frxq[HASH_RXQ_ETH].ibv_flow));
flow->frxq[HASH_RXQ_ETH].ibv_flow = NULL;
DRV_LOG(DEBUG, "port %u flow %p removed",
dev->data->port_id, (void *)flow);
/* Next flow. */
continue;
}
/* Verify the flow has not already been cleaned. */
for (i = 0; i != hash_rxq_init_n; ++i) {
if (!flow->frxq[i].ibv_flow)
continue;
/*
* Indirection table may be necessary to remove the
* flags in the Rx queues.
* This helps to speed-up the process by avoiding
* another loop.
*/
ind_tbl = flow->frxq[i].hrxq->ind_table;
break;
}
if (i == hash_rxq_init_n)
return;
if (flow->mark) {
assert(ind_tbl);
for (i = 0; i != ind_tbl->queues_n; ++i)
(*priv->rxqs)[ind_tbl->queues[i]]->mark = 0;
}
for (i = 0; i != hash_rxq_init_n; ++i) {
if (!flow->frxq[i].ibv_flow)
continue;
claim_zero(mlx5_glue->destroy_flow
(flow->frxq[i].ibv_flow));
flow->frxq[i].ibv_flow = NULL;
mlx5_hrxq_release(dev, flow->frxq[i].hrxq);
flow->frxq[i].hrxq = NULL;
}
DRV_LOG(DEBUG, "port %u flow %p removed", dev->data->port_id,
(void *)flow);
}
/* Cleanup Rx queue tunnel info. */
for (i = 0; i != priv->rxqs_n; ++i) {
struct mlx5_rxq_data *q = (*priv->rxqs)[i];
struct mlx5_rxq_ctrl *rxq_ctrl =
container_of(q, struct mlx5_rxq_ctrl, rxq);
if (!q)
continue;
memset((void *)rxq_ctrl->tunnel_types, 0,
sizeof(rxq_ctrl->tunnel_types));
q->tunnel = 0;
}
}
/**
* Add all flows.
*
* @param dev
* Pointer to Ethernet device.
* @param list
* Pointer to a TAILQ flow list.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_start(struct rte_eth_dev *dev, struct mlx5_flows *list)
{
struct priv *priv = dev->data->dev_private;
struct rte_flow *flow;
TAILQ_FOREACH(flow, list, next) {
unsigned int i;
if (flow->drop) {
flow->frxq[HASH_RXQ_ETH].ibv_flow =
mlx5_glue->create_flow
(priv->flow_drop_queue->qp,
flow->frxq[HASH_RXQ_ETH].ibv_attr);
if (!flow->frxq[HASH_RXQ_ETH].ibv_flow) {
DRV_LOG(DEBUG,
"port %u flow %p cannot be applied",
dev->data->port_id, (void *)flow);
rte_errno = EINVAL;
return -rte_errno;
}
DRV_LOG(DEBUG, "port %u flow %p applied",
dev->data->port_id, (void *)flow);
/* Next flow. */
continue;
}
for (i = 0; i != hash_rxq_init_n; ++i) {
if (!flow->frxq[i].ibv_attr)
continue;
flow->frxq[i].hrxq =
mlx5_hrxq_get(dev, flow->rss_conf.key,
flow->rss_conf.key_len,
flow->frxq[i].hash_fields,
flow->rss_conf.queue,
flow->rss_conf.queue_num,
flow->tunnel,
flow->rss_conf.level);
if (flow->frxq[i].hrxq)
goto flow_create;
flow->frxq[i].hrxq =
mlx5_hrxq_new(dev, flow->rss_conf.key,
flow->rss_conf.key_len,
flow->frxq[i].hash_fields,
flow->rss_conf.queue,
flow->rss_conf.queue_num,
flow->tunnel,
flow->rss_conf.level);
if (!flow->frxq[i].hrxq) {
DRV_LOG(DEBUG,
"port %u flow %p cannot create hash"
" rxq",
dev->data->port_id, (void *)flow);
rte_errno = EINVAL;
return -rte_errno;
}
flow_create:
mlx5_flow_dump(dev, flow, i);
flow->frxq[i].ibv_flow =
mlx5_glue->create_flow(flow->frxq[i].hrxq->qp,
flow->frxq[i].ibv_attr);
if (!flow->frxq[i].ibv_flow) {
DRV_LOG(DEBUG,
"port %u flow %p type %u cannot be"
" applied",
dev->data->port_id, (void *)flow, i);
rte_errno = EINVAL;
return -rte_errno;
}
}
mlx5_flow_create_update_rxqs(dev, flow);
}
return 0;
}
/**
* 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 priv *priv = dev->data->dev_private;
struct rte_flow *flow;
int ret = 0;
TAILQ_FOREACH(flow, &priv->flows, next) {
DRV_LOG(DEBUG, "port %u flow %p still referenced",
dev->data->port_id, (void *)flow);
++ret;
}
return ret;
}
/**
* 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 priv *priv = dev->data->dev_private;
const struct rte_flow_attr attr = {
.ingress = 1,
.priority = MLX5_CTRL_FLOW_PRIORITY,
};
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,
},
};
struct rte_flow *flow;
struct rte_flow_error error;
unsigned int i;
if (!priv->reta_idx_n) {
rte_errno = EINVAL;
return -rte_errno;
}
for (i = 0; i != priv->reta_idx_n; ++i)
queue[i] = (*priv->reta_idx)[i];
flow = mlx5_flow_list_create(dev, &priv->ctrl_flows, &attr, items,
actions, &error);
if (!flow)
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);
}
/**
* 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 priv *priv = dev->data->dev_private;
mlx5_flow_list_destroy(dev, &priv->flows, 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 priv *priv = dev->data->dev_private;
mlx5_flow_list_flush(dev, &priv->flows);
return 0;
}
#ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT
/**
* Query flow counter.
*
* @param cs
* the counter set.
* @param counter_value
* returned data from the counter.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_query_count(struct ibv_counter_set *cs,
struct mlx5_flow_counter_stats *counter_stats,
struct rte_flow_query_count *query_count,
struct rte_flow_error *error)
{
uint64_t counters[2];
struct ibv_query_counter_set_attr query_cs_attr = {
.cs = cs,
.query_flags = IBV_COUNTER_SET_FORCE_UPDATE,
};
struct ibv_counter_set_data query_out = {
.out = counters,
.outlen = 2 * sizeof(uint64_t),
};
int err = mlx5_glue->query_counter_set(&query_cs_attr, &query_out);
if (err)
return rte_flow_error_set(error, err,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL,
"cannot read counter");
query_count->hits_set = 1;
query_count->bytes_set = 1;
query_count->hits = counters[0] - counter_stats->hits;
query_count->bytes = counters[1] - counter_stats->bytes;
if (query_count->reset) {
counter_stats->hits = counters[0];
counter_stats->bytes = counters[1];
}
return 0;
}
/**
* Query a flows.
*
* @see rte_flow_query()
* @see rte_flow_ops
*/
int
mlx5_flow_query(struct rte_eth_dev *dev __rte_unused,
struct rte_flow *flow,
const struct rte_flow_action *action __rte_unused,
void *data,
struct rte_flow_error *error)
{
if (flow->cs) {
int ret;
ret = mlx5_flow_query_count(flow->cs,
&flow->counter_stats,
(struct rte_flow_query_count *)data,
error);
if (ret)
return ret;
} else {
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL,
"no counter found for flow");
}
return 0;
}
#endif
/**
* 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 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;
return 0;
}
/**
* Convert a flow director filter to a generic flow.
*
* @param dev
* Pointer to Ethernet device.
* @param fdir_filter
* Flow director filter to add.
* @param attributes
* Generic flow parameters structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_fdir_filter_convert(struct rte_eth_dev *dev,
const struct rte_eth_fdir_filter *fdir_filter,
struct mlx5_fdir *attributes)
{
struct priv *priv = dev->data->dev_private;
const struct rte_eth_fdir_input *input = &fdir_filter->input;
const struct rte_eth_fdir_masks *mask =
&dev->data->dev_conf.fdir_conf.mask;
/* Validate queue number. */
if (fdir_filter->action.rx_queue >= priv->rxqs_n) {
DRV_LOG(ERR, "port %u invalid queue number %d",
dev->data->port_id, fdir_filter->action.rx_queue);
rte_errno = EINVAL;
return -rte_errno;
}
attributes->attr.ingress = 1;
attributes->items[0] = (struct rte_flow_item) {
.type = RTE_FLOW_ITEM_TYPE_ETH,
.spec = &attributes->l2,
.mask = &attributes->l2_mask,
};
switch (fdir_filter->action.behavior) {
case RTE_ETH_FDIR_ACCEPT:
attributes->actions[0] = (struct rte_flow_action){
.type = RTE_FLOW_ACTION_TYPE_QUEUE,
.conf = &attributes->queue,
};
break;
case RTE_ETH_FDIR_REJECT:
attributes->actions[0] = (struct rte_flow_action){
.type = RTE_FLOW_ACTION_TYPE_DROP,
};
break;
default:
DRV_LOG(ERR, "port %u invalid behavior %d",
dev->data->port_id,
fdir_filter->action.behavior);
rte_errno = ENOTSUP;
return -rte_errno;
}
attributes->queue.index = fdir_filter->action.rx_queue;
/* Handle L3. */
switch (fdir_filter->input.flow_type) {
case RTE_ETH_FLOW_NONFRAG_IPV4_UDP:
case RTE_ETH_FLOW_NONFRAG_IPV4_TCP:
case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER:
attributes->l3.ipv4.hdr = (struct ipv4_hdr){
.src_addr = input->flow.ip4_flow.src_ip,
.dst_addr = input->flow.ip4_flow.dst_ip,
.time_to_live = input->flow.ip4_flow.ttl,
.type_of_service = input->flow.ip4_flow.tos,
.next_proto_id = input->flow.ip4_flow.proto,
};
attributes->l3_mask.ipv4.hdr = (struct ipv4_hdr){
.src_addr = mask->ipv4_mask.src_ip,
.dst_addr = mask->ipv4_mask.dst_ip,
.time_to_live = mask->ipv4_mask.ttl,
.type_of_service = mask->ipv4_mask.tos,
.next_proto_id = mask->ipv4_mask.proto,
};
attributes->items[1] = (struct rte_flow_item){
.type = RTE_FLOW_ITEM_TYPE_IPV4,
.spec = &attributes->l3,
.mask = &attributes->l3_mask,
};
break;
case RTE_ETH_FLOW_NONFRAG_IPV6_UDP:
case RTE_ETH_FLOW_NONFRAG_IPV6_TCP:
case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER:
attributes->l3.ipv6.hdr = (struct ipv6_hdr){
.hop_limits = input->flow.ipv6_flow.hop_limits,
.proto = input->flow.ipv6_flow.proto,
};
memcpy(attributes->l3.ipv6.hdr.src_addr,
input->flow.ipv6_flow.src_ip,
RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
memcpy(attributes->l3.ipv6.hdr.dst_addr,
input->flow.ipv6_flow.dst_ip,
RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
memcpy(attributes->l3_mask.ipv6.hdr.src_addr,
mask->ipv6_mask.src_ip,
RTE_DIM(attributes->l3_mask.ipv6.hdr.src_addr));
memcpy(attributes->l3_mask.ipv6.hdr.dst_addr,
mask->ipv6_mask.dst_ip,
RTE_DIM(attributes->l3_mask.ipv6.hdr.src_addr));
attributes->items[1] = (struct rte_flow_item){
.type = RTE_FLOW_ITEM_TYPE_IPV6,
.spec = &attributes->l3,
.mask = &attributes->l3_mask,
};
break;
default:
DRV_LOG(ERR, "port %u invalid flow type%d",
dev->data->port_id, fdir_filter->input.flow_type);
rte_errno = ENOTSUP;
return -rte_errno;
}
/* Handle L4. */
switch (fdir_filter->input.flow_type) {
case RTE_ETH_FLOW_NONFRAG_IPV4_UDP:
attributes->l4.udp.hdr = (struct udp_hdr){
.src_port = input->flow.udp4_flow.src_port,
.dst_port = input->flow.udp4_flow.dst_port,
};
attributes->l4_mask.udp.hdr = (struct udp_hdr){
.src_port = mask->src_port_mask,
.dst_port = mask->dst_port_mask,
};
attributes->items[2] = (struct rte_flow_item){
.type = RTE_FLOW_ITEM_TYPE_UDP,
.spec = &attributes->l4,
.mask = &attributes->l4_mask,
};
break;
case RTE_ETH_FLOW_NONFRAG_IPV4_TCP:
attributes->l4.tcp.hdr = (struct tcp_hdr){
.src_port = input->flow.tcp4_flow.src_port,
.dst_port = input->flow.tcp4_flow.dst_port,
};
attributes->l4_mask.tcp.hdr = (struct tcp_hdr){
.src_port = mask->src_port_mask,
.dst_port = mask->dst_port_mask,
};
attributes->items[2] = (struct rte_flow_item){
.type = RTE_FLOW_ITEM_TYPE_TCP,
.spec = &attributes->l4,
.mask = &attributes->l4_mask,
};
break;
case RTE_ETH_FLOW_NONFRAG_IPV6_UDP:
attributes->l4.udp.hdr = (struct udp_hdr){
.src_port = input->flow.udp6_flow.src_port,
.dst_port = input->flow.udp6_flow.dst_port,
};
attributes->l4_mask.udp.hdr = (struct udp_hdr){
.src_port = mask->src_port_mask,
.dst_port = mask->dst_port_mask,
};
attributes->items[2] = (struct rte_flow_item){
.type = RTE_FLOW_ITEM_TYPE_UDP,
.spec = &attributes->l4,
.mask = &attributes->l4_mask,
};
break;
case RTE_ETH_FLOW_NONFRAG_IPV6_TCP:
attributes->l4.tcp.hdr = (struct tcp_hdr){
.src_port = input->flow.tcp6_flow.src_port,
.dst_port = input->flow.tcp6_flow.dst_port,
};
attributes->l4_mask.tcp.hdr = (struct tcp_hdr){
.src_port = mask->src_port_mask,
.dst_port = mask->dst_port_mask,
};
attributes->items[2] = (struct rte_flow_item){
.type = RTE_FLOW_ITEM_TYPE_TCP,
.spec = &attributes->l4,
.mask = &attributes->l4_mask,
};
break;
case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER:
case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER:
break;
default:
DRV_LOG(ERR, "port %u invalid flow type%d",
dev->data->port_id, fdir_filter->input.flow_type);
rte_errno = ENOTSUP;
return -rte_errno;
}
return 0;
}
/**
* Add new flow director filter and store it in list.
*
* @param dev
* Pointer to Ethernet device.
* @param fdir_filter
* Flow director filter to add.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_fdir_filter_add(struct rte_eth_dev *dev,
const struct rte_eth_fdir_filter *fdir_filter)
{
struct priv *priv = dev->data->dev_private;
struct mlx5_fdir attributes = {
.attr.group = 0,
.l2_mask = {
.dst.addr_bytes = "\x00\x00\x00\x00\x00\x00",
.src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
.type = 0,
},
};
struct mlx5_flow_parse parser = {
.layer = HASH_RXQ_ETH,
};
struct rte_flow_error error;
struct rte_flow *flow;
int ret;
ret = mlx5_fdir_filter_convert(dev, fdir_filter, &attributes);
if (ret)
return ret;
ret = mlx5_flow_convert(dev, &attributes.attr, attributes.items,
attributes.actions, &error, &parser);
if (ret)
return ret;
flow = mlx5_flow_list_create(dev, &priv->flows, &attributes.attr,
attributes.items, attributes.actions,
&error);
if (flow) {
DRV_LOG(DEBUG, "port %u FDIR created %p", dev->data->port_id,
(void *)flow);
return 0;
}
return -rte_errno;
}
/**
* Delete specific filter.
*
* @param dev
* Pointer to Ethernet device.
* @param fdir_filter
* Filter to be deleted.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_fdir_filter_delete(struct rte_eth_dev *dev,
const struct rte_eth_fdir_filter *fdir_filter)
{
struct priv *priv = dev->data->dev_private;
struct mlx5_fdir attributes = {
.attr.group = 0,
};
struct mlx5_flow_parse parser = {
.create = 1,
.layer = HASH_RXQ_ETH,
};
struct rte_flow_error error;
struct rte_flow *flow;
unsigned int i;
int ret;
ret = mlx5_fdir_filter_convert(dev, fdir_filter, &attributes);
if (ret)
return ret;
ret = mlx5_flow_convert(dev, &attributes.attr, attributes.items,
attributes.actions, &error, &parser);
if (ret)
goto exit;
/*
* Special case for drop action which is only set in the
* specifications when the flow is created. In this situation the
* drop specification is missing.
*/
if (parser.drop) {
struct ibv_flow_spec_action_drop *drop;
drop = (void *)((uintptr_t)parser.queue[HASH_RXQ_ETH].ibv_attr +
parser.queue[HASH_RXQ_ETH].offset);
*drop = (struct ibv_flow_spec_action_drop){
.type = IBV_FLOW_SPEC_ACTION_DROP,
.size = sizeof(struct ibv_flow_spec_action_drop),
};
parser.queue[HASH_RXQ_ETH].ibv_attr->num_of_specs++;
}
TAILQ_FOREACH(flow, &priv->flows, next) {
struct ibv_flow_attr *attr;
struct ibv_spec_header *attr_h;
void *spec;
struct ibv_flow_attr *flow_attr;
struct ibv_spec_header *flow_h;
void *flow_spec;
unsigned int specs_n;
unsigned int queue_id = parser.drop ? HASH_RXQ_ETH :
parser.layer;
attr = parser.queue[queue_id].ibv_attr;
flow_attr = flow->frxq[queue_id].ibv_attr;
/* Compare first the attributes. */
if (!flow_attr ||
memcmp(attr, flow_attr, sizeof(struct ibv_flow_attr)))
continue;
if (attr->num_of_specs == 0)
continue;
spec = (void *)((uintptr_t)attr +
sizeof(struct ibv_flow_attr));
flow_spec = (void *)((uintptr_t)flow_attr +
sizeof(struct ibv_flow_attr));
specs_n = RTE_MIN(attr->num_of_specs, flow_attr->num_of_specs);
for (i = 0; i != specs_n; ++i) {
attr_h = spec;
flow_h = flow_spec;
if (memcmp(spec, flow_spec,
RTE_MIN(attr_h->size, flow_h->size)))
goto wrong_flow;
spec = (void *)((uintptr_t)spec + attr_h->size);
flow_spec = (void *)((uintptr_t)flow_spec +
flow_h->size);
}
/* At this point, the flow match. */
break;
wrong_flow:
/* The flow does not match. */
continue;
}
if (flow)
mlx5_flow_list_destroy(dev, &priv->flows, flow);
exit:
if (ret)
ret = rte_errno; /* Save rte_errno before cleanup. */
for (i = 0; i != hash_rxq_init_n; ++i) {
if (parser.queue[i].ibv_attr)
rte_free(parser.queue[i].ibv_attr);
}
if (ret)
rte_errno = ret; /* Restore rte_errno. */
return -rte_errno;
}
/**
* Update queue for specific filter.
*
* @param dev
* Pointer to Ethernet device.
* @param fdir_filter
* Filter to be updated.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_fdir_filter_update(struct rte_eth_dev *dev,
const struct rte_eth_fdir_filter *fdir_filter)
{
int ret;
ret = mlx5_fdir_filter_delete(dev, fdir_filter);
if (ret)
return ret;
return mlx5_fdir_filter_add(dev, fdir_filter);
}
/**
* Flush all filters.
*
* @param dev
* Pointer to Ethernet device.
*/
static void
mlx5_fdir_filter_flush(struct rte_eth_dev *dev)
{
struct priv *priv = dev->data->dev_private;
mlx5_flow_list_flush(dev, &priv->flows);
}
/**
* Get flow director information.
*
* @param dev
* Pointer to Ethernet device.
* @param[out] fdir_info
* Resulting flow director information.
*/
static void
mlx5_fdir_info_get(struct rte_eth_dev *dev, struct rte_eth_fdir_info *fdir_info)
{
struct rte_eth_fdir_masks *mask =
&dev->data->dev_conf.fdir_conf.mask;
fdir_info->mode = dev->data->dev_conf.fdir_conf.mode;
fdir_info->guarant_spc = 0;
rte_memcpy(&fdir_info->mask, mask, sizeof(fdir_info->mask));
fdir_info->max_flexpayload = 0;
fdir_info->flow_types_mask[0] = 0;
fdir_info->flex_payload_unit = 0;
fdir_info->max_flex_payload_segment_num = 0;
fdir_info->flex_payload_limit = 0;
memset(&fdir_info->flex_conf, 0, sizeof(fdir_info->flex_conf));
}
/**
* Deal with flow director operations.
*
* @param dev
* Pointer to Ethernet device.
* @param filter_op
* Operation to perform.
* @param arg
* Pointer to operation-specific structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_fdir_ctrl_func(struct rte_eth_dev *dev, enum rte_filter_op filter_op,
void *arg)
{
enum rte_fdir_mode fdir_mode =
dev->data->dev_conf.fdir_conf.mode;
if (filter_op == RTE_ETH_FILTER_NOP)
return 0;
if (fdir_mode != RTE_FDIR_MODE_PERFECT &&
fdir_mode != RTE_FDIR_MODE_PERFECT_MAC_VLAN) {
DRV_LOG(ERR, "port %u flow director mode %d not supported",
dev->data->port_id, fdir_mode);
rte_errno = EINVAL;
return -rte_errno;
}
switch (filter_op) {
case RTE_ETH_FILTER_ADD:
return mlx5_fdir_filter_add(dev, arg);
case RTE_ETH_FILTER_UPDATE:
return mlx5_fdir_filter_update(dev, arg);
case RTE_ETH_FILTER_DELETE:
return mlx5_fdir_filter_delete(dev, arg);
case RTE_ETH_FILTER_FLUSH:
mlx5_fdir_filter_flush(dev);
break;
case RTE_ETH_FILTER_INFO:
mlx5_fdir_info_get(dev, arg);
break;
default:
DRV_LOG(DEBUG, "port %u unknown operation %u",
dev->data->port_id, filter_op);
rte_errno = EINVAL;
return -rte_errno;
}
return 0;
}
/**
* Manage filter operations.
*
* @param dev
* Pointer to Ethernet device structure.
* @param filter_type
* Filter type.
* @param filter_op
* Operation to perform.
* @param arg
* Pointer to operation-specific structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_dev_filter_ctrl(struct rte_eth_dev *dev,
enum rte_filter_type filter_type,
enum rte_filter_op filter_op,
void *arg)
{
switch (filter_type) {
case RTE_ETH_FILTER_GENERIC:
if (filter_op != RTE_ETH_FILTER_GET) {
rte_errno = EINVAL;
return -rte_errno;
}
*(const void **)arg = &mlx5_flow_ops;
return 0;
case RTE_ETH_FILTER_FDIR:
return mlx5_fdir_ctrl_func(dev, filter_op, arg);
default:
DRV_LOG(ERR, "port %u filter type (%d) not supported",
dev->data->port_id, filter_type);
rte_errno = ENOTSUP;
return -rte_errno;
}
return 0;
}
/**
* Detect number of Verbs flow priorities supported.
*
* @param dev
* Pointer to Ethernet device.
*
* @return
* number of supported Verbs flow priority.
*/
unsigned int
mlx5_get_max_verbs_prio(struct rte_eth_dev *dev)
{
struct priv *priv = dev->data->dev_private;
unsigned int verb_priorities = MLX5_VERBS_FLOW_PRIO_8;
struct {
struct ibv_flow_attr attr;
struct ibv_flow_spec_eth eth;
struct ibv_flow_spec_action_drop drop;
} flow_attr = {
.attr = {
.num_of_specs = 2,
},
.eth = {
.type = IBV_FLOW_SPEC_ETH,
.size = sizeof(struct ibv_flow_spec_eth),
},
.drop = {
.size = sizeof(struct ibv_flow_spec_action_drop),
.type = IBV_FLOW_SPEC_ACTION_DROP,
},
};
struct ibv_flow *flow;
do {
flow_attr.attr.priority = verb_priorities - 1;
flow = mlx5_glue->create_flow(priv->flow_drop_queue->qp,
&flow_attr.attr);
if (flow) {
claim_zero(mlx5_glue->destroy_flow(flow));
/* Try more priorities. */
verb_priorities *= 2;
} else {
/* Failed, restore last right number. */
verb_priorities /= 2;
break;
}
} while (1);
DRV_LOG(DEBUG, "port %u Verbs flow priorities: %d,"
" user flow priorities: %d",
dev->data->port_id, verb_priorities, MLX5_CTRL_FLOW_PRIORITY);
return verb_priorities;
}
Reference in New Issue View Git Blame Copy Permalink