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numam-dpdk/drivers/net/mlx5/mlx5_flow.c
Xiaoyu Min a7a0365565 net/mlx5: match GRE key and present bits 
Support matching on the present bits (C,K,S)
as well as the optional key field.

If the rte_flow_item_gre_key is specified in pattern,
it will set K present match automatically.

Signed-off-by: Xiaoyu Min <jackmin@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
2019-07-23 14:31:34 +02:00

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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright 2016 6WIND S.A.
* Copyright 2016 Mellanox Technologies, Ltd
*/
#include <netinet/in.h>
#include <sys/queue.h>
#include <stdalign.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_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_flow.h"
#include "mlx5_glue.h"
#include "mlx5_prm.h"
#include "mlx5_rxtx.h"
/* 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;
/** Device flow drivers. */
#ifdef HAVE_IBV_FLOW_DV_SUPPORT
extern const struct mlx5_flow_driver_ops mlx5_flow_dv_drv_ops;
#endif
extern const struct mlx5_flow_driver_ops mlx5_flow_verbs_drv_ops;
const struct mlx5_flow_driver_ops mlx5_flow_null_drv_ops;
const struct mlx5_flow_driver_ops *flow_drv_ops[] = {
[MLX5_FLOW_TYPE_MIN] = &mlx5_flow_null_drv_ops,
#ifdef HAVE_IBV_FLOW_DV_SUPPORT
[MLX5_FLOW_TYPE_DV] = &mlx5_flow_dv_drv_ops,
#endif
[MLX5_FLOW_TYPE_VERBS] = &mlx5_flow_verbs_drv_ops,
[MLX5_FLOW_TYPE_MAX] = &mlx5_flow_null_drv_ops
};
enum mlx5_expansion {
MLX5_EXPANSION_ROOT,
MLX5_EXPANSION_ROOT_OUTER,
MLX5_EXPANSION_ROOT_ETH_VLAN,
MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN,
MLX5_EXPANSION_OUTER_ETH,
MLX5_EXPANSION_OUTER_ETH_VLAN,
MLX5_EXPANSION_OUTER_VLAN,
MLX5_EXPANSION_OUTER_IPV4,
MLX5_EXPANSION_OUTER_IPV4_UDP,
MLX5_EXPANSION_OUTER_IPV4_TCP,
MLX5_EXPANSION_OUTER_IPV6,
MLX5_EXPANSION_OUTER_IPV6_UDP,
MLX5_EXPANSION_OUTER_IPV6_TCP,
MLX5_EXPANSION_VXLAN,
MLX5_EXPANSION_VXLAN_GPE,
MLX5_EXPANSION_GRE,
MLX5_EXPANSION_MPLS,
MLX5_EXPANSION_ETH,
MLX5_EXPANSION_ETH_VLAN,
MLX5_EXPANSION_VLAN,
MLX5_EXPANSION_IPV4,
MLX5_EXPANSION_IPV4_UDP,
MLX5_EXPANSION_IPV4_TCP,
MLX5_EXPANSION_IPV6,
MLX5_EXPANSION_IPV6_UDP,
MLX5_EXPANSION_IPV6_TCP,
};
/** Supported expansion of items. */
static const struct rte_flow_expand_node mlx5_support_expansion[] = {
[MLX5_EXPANSION_ROOT] = {
.next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH,
MLX5_EXPANSION_IPV4,
MLX5_EXPANSION_IPV6),
.type = RTE_FLOW_ITEM_TYPE_END,
},
[MLX5_EXPANSION_ROOT_OUTER] = {
.next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_ETH,
MLX5_EXPANSION_OUTER_IPV4,
MLX5_EXPANSION_OUTER_IPV6),
.type = RTE_FLOW_ITEM_TYPE_END,
},
[MLX5_EXPANSION_ROOT_ETH_VLAN] = {
.next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH_VLAN),
.type = RTE_FLOW_ITEM_TYPE_END,
},
[MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN] = {
.next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_ETH_VLAN),
.type = RTE_FLOW_ITEM_TYPE_END,
},
[MLX5_EXPANSION_OUTER_ETH] = {
.next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_IPV4,
MLX5_EXPANSION_OUTER_IPV6,
MLX5_EXPANSION_MPLS),
.type = RTE_FLOW_ITEM_TYPE_ETH,
.rss_types = 0,
},
[MLX5_EXPANSION_OUTER_ETH_VLAN] = {
.next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_VLAN),
.type = RTE_FLOW_ITEM_TYPE_ETH,
.rss_types = 0,
},
[MLX5_EXPANSION_OUTER_VLAN] = {
.next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_IPV4,
MLX5_EXPANSION_OUTER_IPV6),
.type = RTE_FLOW_ITEM_TYPE_VLAN,
},
[MLX5_EXPANSION_OUTER_IPV4] = {
.next = RTE_FLOW_EXPAND_RSS_NEXT
(MLX5_EXPANSION_OUTER_IPV4_UDP,
MLX5_EXPANSION_OUTER_IPV4_TCP,
MLX5_EXPANSION_GRE),
.type = RTE_FLOW_ITEM_TYPE_IPV4,
.rss_types = ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4 |
ETH_RSS_NONFRAG_IPV4_OTHER,
},
[MLX5_EXPANSION_OUTER_IPV4_UDP] = {
.next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VXLAN,
MLX5_EXPANSION_VXLAN_GPE),
.type = RTE_FLOW_ITEM_TYPE_UDP,
.rss_types = ETH_RSS_NONFRAG_IPV4_UDP,
},
[MLX5_EXPANSION_OUTER_IPV4_TCP] = {
.type = RTE_FLOW_ITEM_TYPE_TCP,
.rss_types = ETH_RSS_NONFRAG_IPV4_TCP,
},
[MLX5_EXPANSION_OUTER_IPV6] = {
.next = RTE_FLOW_EXPAND_RSS_NEXT
(MLX5_EXPANSION_OUTER_IPV6_UDP,
MLX5_EXPANSION_OUTER_IPV6_TCP),
.type = RTE_FLOW_ITEM_TYPE_IPV6,
.rss_types = ETH_RSS_IPV6 | ETH_RSS_FRAG_IPV6 |
ETH_RSS_NONFRAG_IPV6_OTHER,
},
[MLX5_EXPANSION_OUTER_IPV6_UDP] = {
.next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VXLAN,
MLX5_EXPANSION_VXLAN_GPE),
.type = RTE_FLOW_ITEM_TYPE_UDP,
.rss_types = ETH_RSS_NONFRAG_IPV6_UDP,
},
[MLX5_EXPANSION_OUTER_IPV6_TCP] = {
.type = RTE_FLOW_ITEM_TYPE_TCP,
.rss_types = ETH_RSS_NONFRAG_IPV6_TCP,
},
[MLX5_EXPANSION_VXLAN] = {
.next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH),
.type = RTE_FLOW_ITEM_TYPE_VXLAN,
},
[MLX5_EXPANSION_VXLAN_GPE] = {
.next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH,
MLX5_EXPANSION_IPV4,
MLX5_EXPANSION_IPV6),
.type = RTE_FLOW_ITEM_TYPE_VXLAN_GPE,
},
[MLX5_EXPANSION_GRE] = {
.next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4),
.type = RTE_FLOW_ITEM_TYPE_GRE,
},
[MLX5_EXPANSION_MPLS] = {
.next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
MLX5_EXPANSION_IPV6),
.type = RTE_FLOW_ITEM_TYPE_MPLS,
},
[MLX5_EXPANSION_ETH] = {
.next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
MLX5_EXPANSION_IPV6),
.type = RTE_FLOW_ITEM_TYPE_ETH,
},
[MLX5_EXPANSION_ETH_VLAN] = {
.next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VLAN),
.type = RTE_FLOW_ITEM_TYPE_ETH,
},
[MLX5_EXPANSION_VLAN] = {
.next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
MLX5_EXPANSION_IPV6),
.type = RTE_FLOW_ITEM_TYPE_VLAN,
},
[MLX5_EXPANSION_IPV4] = {
.next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4_UDP,
MLX5_EXPANSION_IPV4_TCP),
.type = RTE_FLOW_ITEM_TYPE_IPV4,
.rss_types = ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4 |
ETH_RSS_NONFRAG_IPV4_OTHER,
},
[MLX5_EXPANSION_IPV4_UDP] = {
.type = RTE_FLOW_ITEM_TYPE_UDP,
.rss_types = ETH_RSS_NONFRAG_IPV4_UDP,
},
[MLX5_EXPANSION_IPV4_TCP] = {
.type = RTE_FLOW_ITEM_TYPE_TCP,
.rss_types = ETH_RSS_NONFRAG_IPV4_TCP,
},
[MLX5_EXPANSION_IPV6] = {
.next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV6_UDP,
MLX5_EXPANSION_IPV6_TCP),
.type = RTE_FLOW_ITEM_TYPE_IPV6,
.rss_types = ETH_RSS_IPV6 | ETH_RSS_FRAG_IPV6 |
ETH_RSS_NONFRAG_IPV6_OTHER,
},
[MLX5_EXPANSION_IPV6_UDP] = {
.type = RTE_FLOW_ITEM_TYPE_UDP,
.rss_types = ETH_RSS_NONFRAG_IPV6_UDP,
},
[MLX5_EXPANSION_IPV6_TCP] = {
.type = RTE_FLOW_ITEM_TYPE_TCP,
.rss_types = ETH_RSS_NONFRAG_IPV6_TCP,
},
};
static const struct rte_flow_ops mlx5_flow_ops = {
.validate = mlx5_flow_validate,
.create = mlx5_flow_create,
.destroy = mlx5_flow_destroy,
.flush = mlx5_flow_flush,
.isolate = mlx5_flow_isolate,
.query = mlx5_flow_query,
};
/* Convert FDIR request to Generic flow. */
struct mlx5_fdir {
struct rte_flow_attr attr;
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 actions[2];
struct rte_flow_action_queue queue;
};
/* Map of Verbs to Flow priority with 8 Verbs priorities. */
static const uint32_t priority_map_3[][MLX5_PRIORITY_MAP_MAX] = {
{ 0, 1, 2 }, { 2, 3, 4 }, { 5, 6, 7 },
};
/* Map of Verbs to Flow priority with 16 Verbs priorities. */
static const uint32_t priority_map_5[][MLX5_PRIORITY_MAP_MAX] = {
{ 0, 1, 2 }, { 3, 4, 5 }, { 6, 7, 8 },
{ 9, 10, 11 }, { 12, 13, 14 },
};
/* Tunnel information. */
struct mlx5_flow_tunnel_info {
uint64_t tunnel; /**< Tunnel bit (see MLX5_FLOW_*). */
uint32_t ptype; /**< Tunnel Ptype (see RTE_PTYPE_*). */
};
static struct mlx5_flow_tunnel_info tunnels_info[] = {
{
.tunnel = MLX5_FLOW_LAYER_VXLAN,
.ptype = RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_L4_UDP,
},
{
.tunnel = MLX5_FLOW_LAYER_VXLAN_GPE,
.ptype = RTE_PTYPE_TUNNEL_VXLAN_GPE | RTE_PTYPE_L4_UDP,
},
{
.tunnel = MLX5_FLOW_LAYER_GRE,
.ptype = RTE_PTYPE_TUNNEL_GRE,
},
{
.tunnel = MLX5_FLOW_LAYER_MPLS | MLX5_FLOW_LAYER_OUTER_L4_UDP,
.ptype = RTE_PTYPE_TUNNEL_MPLS_IN_UDP | RTE_PTYPE_L4_UDP,
},
{
.tunnel = MLX5_FLOW_LAYER_MPLS,
.ptype = RTE_PTYPE_TUNNEL_MPLS_IN_GRE,
},
};
/**
* Discover the maximum number of priority available.
*
* @param[in] dev
* Pointer to the Ethernet device structure.
*
* @return
* number of supported flow priority on success, a negative errno
* value otherwise and rte_errno is set.
*/
int
mlx5_flow_discover_priorities(struct rte_eth_dev *dev)
{
struct mlx5_priv *priv = dev->data->dev_private;
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,
.port = (uint8_t)priv->ibv_port,
},
.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;
struct mlx5_hrxq *drop = mlx5_hrxq_drop_new(dev);
uint16_t vprio[] = { 8, 16 };
int i;
int priority = 0;
if (!drop) {
rte_errno = ENOTSUP;
return -rte_errno;
}
for (i = 0; i != RTE_DIM(vprio); i++) {
flow_attr.attr.priority = vprio[i] - 1;
flow = mlx5_glue->create_flow(drop->qp, &flow_attr.attr);
if (!flow)
break;
claim_zero(mlx5_glue->destroy_flow(flow));
priority = vprio[i];
}
mlx5_hrxq_drop_release(dev);
switch (priority) {
case 8:
priority = RTE_DIM(priority_map_3);
break;
case 16:
priority = RTE_DIM(priority_map_5);
break;
default:
rte_errno = ENOTSUP;
DRV_LOG(ERR,
"port %u verbs maximum priority: %d expected 8/16",
dev->data->port_id, priority);
return -rte_errno;
}
DRV_LOG(INFO, "port %u flow maximum priority: %d",
dev->data->port_id, priority);
return priority;
}
/**
* Adjust flow priority based on the highest layer and the request priority.
*
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in] priority
* The rule base priority.
* @param[in] subpriority
* The priority based on the items.
*
* @return
* The new priority.
*/
uint32_t mlx5_flow_adjust_priority(struct rte_eth_dev *dev, int32_t priority,
uint32_t subpriority)
{
uint32_t res = 0;
struct mlx5_priv *priv = dev->data->dev_private;
switch (priv->config.flow_prio) {
case RTE_DIM(priority_map_3):
res = priority_map_3[priority][subpriority];
break;
case RTE_DIM(priority_map_5):
res = priority_map_5[priority][subpriority];
break;
}
return res;
}
/**
* Verify the @p item specifications (spec, last, mask) are compatible with the
* NIC capabilities.
*
* @param[in] item
* Item specification.
* @param[in] mask
* @p item->mask or flow default bit-masks.
* @param[in] nic_mask
* Bit-masks covering supported fields by the NIC to compare with user mask.
* @param[in] size
* Bit-masks size in bytes.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_item_acceptable(const struct rte_flow_item *item,
const uint8_t *mask,
const uint8_t *nic_mask,
unsigned int size,
struct rte_flow_error *error)
{
unsigned int i;
assert(nic_mask);
for (i = 0; i < size; ++i)
if ((nic_mask[i] | mask[i]) != nic_mask[i])
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"mask enables non supported"
" bits");
if (!item->spec && (item->mask || item->last))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"mask/last without a spec is not"
" supported");
if (item->spec && item->last) {
uint8_t spec[size];
uint8_t last[size];
unsigned int i;
int ret;
for (i = 0; i < size; ++i) {
spec[i] = ((const uint8_t *)item->spec)[i] & mask[i];
last[i] = ((const uint8_t *)item->last)[i] & mask[i];
}
ret = memcmp(spec, last, size);
if (ret != 0)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"range is not valid");
}
return 0;
}
/**
* Adjust the hash fields according to the @p flow information.
*
* @param[in] dev_flow.
* Pointer to the mlx5_flow.
* @param[in] tunnel
* 1 when the hash field is for a tunnel item.
* @param[in] layer_types
* ETH_RSS_* types.
* @param[in] hash_fields
* Item hash fields.
*
* @return
* The hash fileds that should be used.
*/
uint64_t
mlx5_flow_hashfields_adjust(struct mlx5_flow *dev_flow,
int tunnel __rte_unused, uint64_t layer_types,
uint64_t hash_fields)
{
struct rte_flow *flow = dev_flow->flow;
#ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
int rss_request_inner = flow->rss.level >= 2;
/* Check RSS hash level for tunnel. */
if (tunnel && rss_request_inner)
hash_fields |= IBV_RX_HASH_INNER;
else if (tunnel || rss_request_inner)
return 0;
#endif
/* Check if requested layer matches RSS hash fields. */
if (!(flow->rss.types & layer_types))
return 0;
return hash_fields;
}
/**
* Lookup and set the ptype in the data Rx part. A single Ptype can be used,
* if several tunnel rules are used on this queue, the tunnel ptype will be
* cleared.
*
* @param rxq_ctrl
* Rx queue to update.
*/
static void
flow_rxq_tunnel_ptype_update(struct mlx5_rxq_ctrl *rxq_ctrl)
{
unsigned int i;
uint32_t tunnel_ptype = 0;
/* Look up for the ptype to use. */
for (i = 0; i != MLX5_FLOW_TUNNEL; ++i) {
if (!rxq_ctrl->flow_tunnels_n[i])
continue;
if (!tunnel_ptype) {
tunnel_ptype = tunnels_info[i].ptype;
} else {
tunnel_ptype = 0;
break;
}
}
rxq_ctrl->rxq.tunnel = tunnel_ptype;
}
/**
* Set the Rx queue flags (Mark/Flag and Tunnel Ptypes) according to the devive
* flow.
*
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in] dev_flow
* Pointer to device flow structure.
*/
static void
flow_drv_rxq_flags_set(struct rte_eth_dev *dev, struct mlx5_flow *dev_flow)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct rte_flow *flow = dev_flow->flow;
const int mark = !!(flow->actions &
(MLX5_FLOW_ACTION_FLAG | MLX5_FLOW_ACTION_MARK));
const int tunnel = !!(dev_flow->layers & MLX5_FLOW_LAYER_TUNNEL);
unsigned int i;
for (i = 0; i != flow->rss.queue_num; ++i) {
int idx = (*flow->queue)[i];
struct mlx5_rxq_ctrl *rxq_ctrl =
container_of((*priv->rxqs)[idx],
struct mlx5_rxq_ctrl, rxq);
if (mark) {
rxq_ctrl->rxq.mark = 1;
rxq_ctrl->flow_mark_n++;
}
if (tunnel) {
unsigned int j;
/* Increase the counter matching the flow. */
for (j = 0; j != MLX5_FLOW_TUNNEL; ++j) {
if ((tunnels_info[j].tunnel &
dev_flow->layers) ==
tunnels_info[j].tunnel) {
rxq_ctrl->flow_tunnels_n[j]++;
break;
}
}
flow_rxq_tunnel_ptype_update(rxq_ctrl);
}
}
}
/**
* Set the Rx queue flags (Mark/Flag and Tunnel Ptypes) for a flow
*
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in] flow
* Pointer to flow structure.
*/
static void
flow_rxq_flags_set(struct rte_eth_dev *dev, struct rte_flow *flow)
{
struct mlx5_flow *dev_flow;
LIST_FOREACH(dev_flow, &flow->dev_flows, next)
flow_drv_rxq_flags_set(dev, dev_flow);
}
/**
* Clear the Rx queue flags (Mark/Flag and Tunnel Ptype) associated with the
* device flow if no other flow uses it with the same kind of request.
*
* @param dev
* Pointer to Ethernet device.
* @param[in] dev_flow
* Pointer to the device flow.
*/
static void
flow_drv_rxq_flags_trim(struct rte_eth_dev *dev, struct mlx5_flow *dev_flow)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct rte_flow *flow = dev_flow->flow;
const int mark = !!(flow->actions &
(MLX5_FLOW_ACTION_FLAG | MLX5_FLOW_ACTION_MARK));
const int tunnel = !!(dev_flow->layers & MLX5_FLOW_LAYER_TUNNEL);
unsigned int i;
assert(dev->data->dev_started);
for (i = 0; i != flow->rss.queue_num; ++i) {
int idx = (*flow->queue)[i];
struct mlx5_rxq_ctrl *rxq_ctrl =
container_of((*priv->rxqs)[idx],
struct mlx5_rxq_ctrl, rxq);
if (mark) {
rxq_ctrl->flow_mark_n--;
rxq_ctrl->rxq.mark = !!rxq_ctrl->flow_mark_n;
}
if (tunnel) {
unsigned int j;
/* Decrease the counter matching the flow. */
for (j = 0; j != MLX5_FLOW_TUNNEL; ++j) {
if ((tunnels_info[j].tunnel &
dev_flow->layers) ==
tunnels_info[j].tunnel) {
rxq_ctrl->flow_tunnels_n[j]--;
break;
}
}
flow_rxq_tunnel_ptype_update(rxq_ctrl);
}
}
}
/**
* Clear the Rx queue flags (Mark/Flag and Tunnel Ptype) associated with the
* @p flow if no other flow uses it with the same kind of request.
*
* @param dev
* Pointer to Ethernet device.
* @param[in] flow
* Pointer to the flow.
*/
static void
flow_rxq_flags_trim(struct rte_eth_dev *dev, struct rte_flow *flow)
{
struct mlx5_flow *dev_flow;
LIST_FOREACH(dev_flow, &flow->dev_flows, next)
flow_drv_rxq_flags_trim(dev, dev_flow);
}
/**
* Clear the Mark/Flag and Tunnel ptype information in all Rx queues.
*
* @param dev
* Pointer to Ethernet device.
*/
static void
flow_rxq_flags_clear(struct rte_eth_dev *dev)
{
struct mlx5_priv *priv = dev->data->dev_private;
unsigned int i;
for (i = 0; i != priv->rxqs_n; ++i) {
struct mlx5_rxq_ctrl *rxq_ctrl;
unsigned int j;
if (!(*priv->rxqs)[i])
continue;
rxq_ctrl = container_of((*priv->rxqs)[i],
struct mlx5_rxq_ctrl, rxq);
rxq_ctrl->flow_mark_n = 0;
rxq_ctrl->rxq.mark = 0;
for (j = 0; j != MLX5_FLOW_TUNNEL; ++j)
rxq_ctrl->flow_tunnels_n[j] = 0;
rxq_ctrl->rxq.tunnel = 0;
}
}
/*
* Validate the flag action.
*
* @param[in] action_flags
* Bit-fields that holds the actions detected until now.
* @param[in] attr
* Attributes of flow that includes this action.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_action_flag(uint64_t action_flags,
const struct rte_flow_attr *attr,
struct rte_flow_error *error)
{
if (action_flags & MLX5_FLOW_ACTION_DROP)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can't drop and flag in same flow");
if (action_flags & MLX5_FLOW_ACTION_MARK)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can't mark and flag in same flow");
if (action_flags & MLX5_FLOW_ACTION_FLAG)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can't have 2 flag"
" actions in same flow");
if (attr->egress)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
"flag action not supported for "
"egress");
return 0;
}
/*
* Validate the mark action.
*
* @param[in] action
* Pointer to the queue action.
* @param[in] action_flags
* Bit-fields that holds the actions detected until now.
* @param[in] attr
* Attributes of flow that includes this action.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_action_mark(const struct rte_flow_action *action,
uint64_t action_flags,
const struct rte_flow_attr *attr,
struct rte_flow_error *error)
{
const struct rte_flow_action_mark *mark = action->conf;
if (!mark)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
action,
"configuration cannot be null");
if (mark->id >= MLX5_FLOW_MARK_MAX)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
&mark->id,
"mark id must in 0 <= id < "
RTE_STR(MLX5_FLOW_MARK_MAX));
if (action_flags & MLX5_FLOW_ACTION_DROP)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can't drop and mark in same flow");
if (action_flags & MLX5_FLOW_ACTION_FLAG)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can't flag and mark in same flow");
if (action_flags & MLX5_FLOW_ACTION_MARK)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can't have 2 mark actions in same"
" flow");
if (attr->egress)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
"mark action not supported for "
"egress");
return 0;
}
/*
* Validate the drop action.
*
* @param[in] action_flags
* Bit-fields that holds the actions detected until now.
* @param[in] attr
* Attributes of flow that includes this action.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_action_drop(uint64_t action_flags,
const struct rte_flow_attr *attr,
struct rte_flow_error *error)
{
if (action_flags & MLX5_FLOW_ACTION_FLAG)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can't drop and flag in same flow");
if (action_flags & MLX5_FLOW_ACTION_MARK)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can't drop and mark in same flow");
if (action_flags & MLX5_FLOW_FATE_ACTIONS)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can't have 2 fate actions in"
" same flow");
if (attr->egress)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
"drop action not supported for "
"egress");
return 0;
}
/*
* Validate the queue action.
*
* @param[in] action
* Pointer to the queue action.
* @param[in] action_flags
* Bit-fields that holds the actions detected until now.
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in] attr
* Attributes of flow that includes this action.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_action_queue(const struct rte_flow_action *action,
uint64_t action_flags,
struct rte_eth_dev *dev,
const struct rte_flow_attr *attr,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
const struct rte_flow_action_queue *queue = action->conf;
if (action_flags & MLX5_FLOW_FATE_ACTIONS)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can't have 2 fate actions in"
" same flow");
if (!priv->rxqs_n)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
NULL, "No Rx queues configured");
if (queue->index >= priv->rxqs_n)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
&queue->index,
"queue index out of range");
if (!(*priv->rxqs)[queue->index])
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
&queue->index,
"queue is not configured");
if (attr->egress)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
"queue action not supported for "
"egress");
return 0;
}
/*
* Validate the rss action.
*
* @param[in] action
* Pointer to the queue action.
* @param[in] action_flags
* Bit-fields that holds the actions detected until now.
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in] attr
* Attributes of flow that includes this action.
* @param[in] item_flags
* Items that were detected.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_action_rss(const struct rte_flow_action *action,
uint64_t action_flags,
struct rte_eth_dev *dev,
const struct rte_flow_attr *attr,
uint64_t item_flags,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
const struct rte_flow_action_rss *rss = action->conf;
int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
unsigned int i;
if (action_flags & MLX5_FLOW_FATE_ACTIONS)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can't have 2 fate actions"
" in same flow");
if (rss->func != RTE_ETH_HASH_FUNCTION_DEFAULT &&
rss->func != RTE_ETH_HASH_FUNCTION_TOEPLITZ)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
&rss->func,
"RSS hash function not supported");
#ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
if (rss->level > 2)
#else
if (rss->level > 1)
#endif
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
&rss->level,
"tunnel RSS is not supported");
/* allow RSS key_len 0 in case of NULL (default) RSS key. */
if (rss->key_len == 0 && rss->key != NULL)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
&rss->key_len,
"RSS hash key length 0");
if (rss->key_len > 0 && rss->key_len < MLX5_RSS_HASH_KEY_LEN)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
&rss->key_len,
"RSS hash key too small");
if (rss->key_len > MLX5_RSS_HASH_KEY_LEN)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
&rss->key_len,
"RSS hash key too large");
if (rss->queue_num > priv->config.ind_table_max_size)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
&rss->queue_num,
"number of queues too large");
if (rss->types & MLX5_RSS_HF_MASK)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
&rss->types,
"some RSS protocols are not"
" supported");
if (!priv->rxqs_n)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
NULL, "No Rx queues configured");
if (!rss->queue_num)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
NULL, "No queues configured");
for (i = 0; i != rss->queue_num; ++i) {
if (!(*priv->rxqs)[rss->queue[i]])
return rte_flow_error_set
(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_CONF,
&rss->queue[i], "queue is not configured");
}
if (attr->egress)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
"rss action not supported for "
"egress");
if (rss->level > 1 && !tunnel)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
"inner RSS is not supported for "
"non-tunnel flows");
return 0;
}
/*
* Validate the count action.
*
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in] attr
* Attributes of flow that includes this action.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_action_count(struct rte_eth_dev *dev __rte_unused,
const struct rte_flow_attr *attr,
struct rte_flow_error *error)
{
if (attr->egress)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
"count action not supported for "
"egress");
return 0;
}
/**
* Verify the @p attributes will be correctly understood by the NIC and store
* them in the @p flow if everything is correct.
*
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in] attributes
* Pointer to flow attributes
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_attributes(struct rte_eth_dev *dev,
const struct rte_flow_attr *attributes,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
uint32_t priority_max = priv->config.flow_prio - 1;
if (attributes->group)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
NULL, "groups is not supported");
if (attributes->priority != MLX5_FLOW_PRIO_RSVD &&
attributes->priority >= priority_max)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
NULL, "priority out of range");
if (attributes->egress)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
"egress is not supported");
if (attributes->transfer && !priv->config.dv_esw_en)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
NULL, "transfer is not supported");
if (!attributes->ingress)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
NULL,
"ingress attribute is mandatory");
return 0;
}
/**
* Validate ICMP6 item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit-fields that holds the items detected until now.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_icmp6(const struct rte_flow_item *item,
uint64_t item_flags,
uint8_t target_protocol,
struct rte_flow_error *error)
{
const struct rte_flow_item_icmp6 *mask = item->mask;
const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV6 :
MLX5_FLOW_LAYER_OUTER_L3_IPV6;
const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
MLX5_FLOW_LAYER_OUTER_L4;
int ret;
if (target_protocol != 0xFF && target_protocol != IPPROTO_ICMPV6)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"protocol filtering not compatible"
" with ICMP6 layer");
if (!(item_flags & l3m))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"IPv6 is mandatory to filter on"
" ICMP6");
if (item_flags & l4m)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple L4 layers not supported");
if (!mask)
mask = &rte_flow_item_icmp6_mask;
ret = mlx5_flow_item_acceptable
(item, (const uint8_t *)mask,
(const uint8_t *)&rte_flow_item_icmp6_mask,
sizeof(struct rte_flow_item_icmp6), error);
if (ret < 0)
return ret;
return 0;
}
/**
* Validate ICMP item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit-fields that holds the items detected until now.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_icmp(const struct rte_flow_item *item,
uint64_t item_flags,
uint8_t target_protocol,
struct rte_flow_error *error)
{
const struct rte_flow_item_icmp *mask = item->mask;
const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV4 :
MLX5_FLOW_LAYER_OUTER_L3_IPV4;
const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
MLX5_FLOW_LAYER_OUTER_L4;
int ret;
if (target_protocol != 0xFF && target_protocol != IPPROTO_ICMP)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"protocol filtering not compatible"
" with ICMP layer");
if (!(item_flags & l3m))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"IPv4 is mandatory to filter"
" on ICMP");
if (item_flags & l4m)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple L4 layers not supported");
if (!mask)
mask = &rte_flow_item_icmp_mask;
ret = mlx5_flow_item_acceptable
(item, (const uint8_t *)mask,
(const uint8_t *)&rte_flow_item_icmp_mask,
sizeof(struct rte_flow_item_icmp), error);
if (ret < 0)
return ret;
return 0;
}
/**
* Validate Ethernet item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit-fields that holds the items detected until now.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_eth(const struct rte_flow_item *item,
uint64_t item_flags,
struct rte_flow_error *error)
{
const struct rte_flow_item_eth *mask = item->mask;
const struct rte_flow_item_eth nic_mask = {
.dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
.src.addr_bytes = "\xff\xff\xff\xff\xff\xff",
.type = RTE_BE16(0xffff),
};
int ret;
int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
const uint64_t ethm = tunnel ? MLX5_FLOW_LAYER_INNER_L2 :
MLX5_FLOW_LAYER_OUTER_L2;
if (item_flags & ethm)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple L2 layers not supported");
if (!mask)
mask = &rte_flow_item_eth_mask;
ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
(const uint8_t *)&nic_mask,
sizeof(struct rte_flow_item_eth),
error);
return ret;
}
/**
* Validate VLAN item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit-fields that holds the items detected until now.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_vlan(const struct rte_flow_item *item,
uint64_t item_flags,
struct rte_flow_error *error)
{
const struct rte_flow_item_vlan *spec = item->spec;
const struct rte_flow_item_vlan *mask = item->mask;
const struct rte_flow_item_vlan nic_mask = {
.tci = RTE_BE16(0x0fff),
.inner_type = RTE_BE16(0xffff),
};
uint16_t vlan_tag = 0;
const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
int ret;
const uint64_t l34m = tunnel ? (MLX5_FLOW_LAYER_INNER_L3 |
MLX5_FLOW_LAYER_INNER_L4) :
(MLX5_FLOW_LAYER_OUTER_L3 |
MLX5_FLOW_LAYER_OUTER_L4);
const uint64_t vlanm = tunnel ? MLX5_FLOW_LAYER_INNER_VLAN :
MLX5_FLOW_LAYER_OUTER_VLAN;
if (item_flags & vlanm)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple VLAN layers not supported");
else if ((item_flags & l34m) != 0)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"L2 layer cannot follow L3/L4 layer");
if (!mask)
mask = &rte_flow_item_vlan_mask;
ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
(const uint8_t *)&nic_mask,
sizeof(struct rte_flow_item_vlan),
error);
if (ret)
return ret;
if (spec) {
vlan_tag = spec->tci;
vlan_tag &= mask->tci;
}
/*
* From verbs perspective an empty VLAN is equivalent
* to a packet without VLAN layer.
*/
if (!vlan_tag)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM_SPEC,
item->spec,
"VLAN cannot be empty");
return 0;
}
/**
* Validate IPV4 item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit-fields that holds the items detected until now.
* @param[in] acc_mask
* Acceptable mask, if NULL default internal default mask
* will be used to check whether item fields are supported.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_ipv4(const struct rte_flow_item *item,
uint64_t item_flags,
const struct rte_flow_item_ipv4 *acc_mask,
struct rte_flow_error *error)
{
const struct rte_flow_item_ipv4 *mask = item->mask;
const struct rte_flow_item_ipv4 nic_mask = {
.hdr = {
.src_addr = RTE_BE32(0xffffffff),
.dst_addr = RTE_BE32(0xffffffff),
.type_of_service = 0xff,
.next_proto_id = 0xff,
},
};
const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
MLX5_FLOW_LAYER_OUTER_L3;
const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
MLX5_FLOW_LAYER_OUTER_L4;
int ret;
if (item_flags & l3m)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple L3 layers not supported");
else if (item_flags & l4m)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"L3 cannot follow an L4 layer.");
if (!mask)
mask = &rte_flow_item_ipv4_mask;
else if (mask->hdr.next_proto_id != 0 &&
mask->hdr.next_proto_id != 0xff)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
"partial mask is not supported"
" for protocol");
ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
acc_mask ? (const uint8_t *)acc_mask
: (const uint8_t *)&nic_mask,
sizeof(struct rte_flow_item_ipv4),
error);
if (ret < 0)
return ret;
return 0;
}
/**
* Validate IPV6 item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit-fields that holds the items detected until now.
* @param[in] acc_mask
* Acceptable mask, if NULL default internal default mask
* will be used to check whether item fields are supported.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_ipv6(const struct rte_flow_item *item,
uint64_t item_flags,
const struct rte_flow_item_ipv6 *acc_mask,
struct rte_flow_error *error)
{
const struct rte_flow_item_ipv6 *mask = item->mask;
const struct rte_flow_item_ipv6 nic_mask = {
.hdr = {
.src_addr =
"\xff\xff\xff\xff\xff\xff\xff\xff"
"\xff\xff\xff\xff\xff\xff\xff\xff",
.dst_addr =
"\xff\xff\xff\xff\xff\xff\xff\xff"
"\xff\xff\xff\xff\xff\xff\xff\xff",
.vtc_flow = RTE_BE32(0xffffffff),
.proto = 0xff,
.hop_limits = 0xff,
},
};
const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
MLX5_FLOW_LAYER_OUTER_L3;
const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
MLX5_FLOW_LAYER_OUTER_L4;
int ret;
if (item_flags & l3m)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple L3 layers not supported");
else if (item_flags & l4m)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"L3 cannot follow an L4 layer.");
if (!mask)
mask = &rte_flow_item_ipv6_mask;
ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
acc_mask ? (const uint8_t *)acc_mask
: (const uint8_t *)&nic_mask,
sizeof(struct rte_flow_item_ipv6),
error);
if (ret < 0)
return ret;
return 0;
}
/**
* Validate UDP item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit-fields that holds the items detected until now.
* @param[in] target_protocol
* The next protocol in the previous item.
* @param[in] flow_mask
* mlx5 flow-specific (DV, verbs, etc.) supported header fields mask.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_udp(const struct rte_flow_item *item,
uint64_t item_flags,
uint8_t target_protocol,
struct rte_flow_error *error)
{
const struct rte_flow_item_udp *mask = item->mask;
const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
MLX5_FLOW_LAYER_OUTER_L3;
const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
MLX5_FLOW_LAYER_OUTER_L4;
int ret;
if (target_protocol != 0xff && target_protocol != IPPROTO_UDP)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"protocol filtering not compatible"
" with UDP layer");
if (!(item_flags & l3m))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"L3 is mandatory to filter on L4");
if (item_flags & l4m)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple L4 layers not supported");
if (!mask)
mask = &rte_flow_item_udp_mask;
ret = mlx5_flow_item_acceptable
(item, (const uint8_t *)mask,
(const uint8_t *)&rte_flow_item_udp_mask,
sizeof(struct rte_flow_item_udp), error);
if (ret < 0)
return ret;
return 0;
}
/**
* Validate TCP item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit-fields that holds the items detected until now.
* @param[in] target_protocol
* The next protocol in the previous item.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_tcp(const struct rte_flow_item *item,
uint64_t item_flags,
uint8_t target_protocol,
const struct rte_flow_item_tcp *flow_mask,
struct rte_flow_error *error)
{
const struct rte_flow_item_tcp *mask = item->mask;
const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
MLX5_FLOW_LAYER_OUTER_L3;
const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
MLX5_FLOW_LAYER_OUTER_L4;
int ret;
assert(flow_mask);
if (target_protocol != 0xff && target_protocol != IPPROTO_TCP)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"protocol filtering not compatible"
" with TCP layer");
if (!(item_flags & l3m))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"L3 is mandatory to filter on L4");
if (item_flags & l4m)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple L4 layers not supported");
if (!mask)
mask = &rte_flow_item_tcp_mask;
ret = mlx5_flow_item_acceptable
(item, (const uint8_t *)mask,
(const uint8_t *)flow_mask,
sizeof(struct rte_flow_item_tcp), error);
if (ret < 0)
return ret;
return 0;
}
/**
* Validate VXLAN item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit-fields that holds the items detected until now.
* @param[in] target_protocol
* The next protocol in the previous item.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_vxlan(const struct rte_flow_item *item,
uint64_t item_flags,
struct rte_flow_error *error)
{
const struct rte_flow_item_vxlan *spec = item->spec;
const struct rte_flow_item_vxlan *mask = item->mask;
int ret;
union vni {
uint32_t vlan_id;
uint8_t vni[4];
} id = { .vlan_id = 0, };
uint32_t vlan_id = 0;
if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple tunnel layers not"
" supported");
/*
* Verify only UDPv4 is present as defined in
* https://tools.ietf.org/html/rfc7348
*/
if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"no outer UDP layer found");
if (!mask)
mask = &rte_flow_item_vxlan_mask;
ret = mlx5_flow_item_acceptable
(item, (const uint8_t *)mask,
(const uint8_t *)&rte_flow_item_vxlan_mask,
sizeof(struct rte_flow_item_vxlan),
error);
if (ret < 0)
return ret;
if (spec) {
memcpy(&id.vni[1], spec->vni, 3);
vlan_id = id.vlan_id;
memcpy(&id.vni[1], mask->vni, 3);
vlan_id &= id.vlan_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.
*/
if (!vlan_id)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"VXLAN vni cannot be 0");
if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"VXLAN tunnel must be fully defined");
return 0;
}
/**
* Validate VXLAN_GPE item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit-fields that holds the items detected until now.
* @param[in] priv
* Pointer to the private data structure.
* @param[in] target_protocol
* The next protocol in the previous item.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_vxlan_gpe(const struct rte_flow_item *item,
uint64_t item_flags,
struct rte_eth_dev *dev,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
const struct rte_flow_item_vxlan_gpe *spec = item->spec;
const struct rte_flow_item_vxlan_gpe *mask = item->mask;
int ret;
union vni {
uint32_t vlan_id;
uint8_t vni[4];
} id = { .vlan_id = 0, };
uint32_t vlan_id = 0;
if (!priv->config.l3_vxlan_en)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"L3 VXLAN is not enabled by device"
" parameter and/or not configured in"
" firmware");
if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple tunnel layers not"
" supported");
/*
* Verify only UDPv4 is present as defined in
* https://tools.ietf.org/html/rfc7348
*/
if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"no outer UDP layer found");
if (!mask)
mask = &rte_flow_item_vxlan_gpe_mask;
ret = mlx5_flow_item_acceptable
(item, (const uint8_t *)mask,
(const uint8_t *)&rte_flow_item_vxlan_gpe_mask,
sizeof(struct rte_flow_item_vxlan_gpe),
error);
if (ret < 0)
return ret;
if (spec) {
if (spec->protocol)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"VxLAN-GPE protocol"
" not supported");
memcpy(&id.vni[1], spec->vni, 3);
vlan_id = id.vlan_id;
memcpy(&id.vni[1], mask->vni, 3);
vlan_id &= id.vlan_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.
*/
if (!vlan_id)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"VXLAN-GPE vni cannot be 0");
if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"VXLAN-GPE tunnel must be fully"
" defined");
return 0;
}
/**
* Validate GRE Key item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit flags to mark detected items.
* @param[in] gre_item
* Pointer to gre_item
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_gre_key(const struct rte_flow_item *item,
uint64_t item_flags,
const struct rte_flow_item *gre_item,
struct rte_flow_error *error)
{
const rte_be32_t *mask = item->mask;
int ret = 0;
rte_be32_t gre_key_default_mask = RTE_BE32(UINT32_MAX);
const struct rte_flow_item_gre *gre_spec = gre_item->spec;
const struct rte_flow_item_gre *gre_mask = gre_item->mask;
if (item_flags & MLX5_FLOW_LAYER_GRE_KEY)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Multiple GRE key not support");
if (!(item_flags & MLX5_FLOW_LAYER_GRE))
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"No preceding GRE header");
if (item_flags & MLX5_FLOW_LAYER_INNER)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"GRE key following a wrong item");
if (!gre_mask)
gre_mask = &rte_flow_item_gre_mask;
if (gre_spec && (gre_mask->c_rsvd0_ver & RTE_BE16(0x2000)) &&
!(gre_spec->c_rsvd0_ver & RTE_BE16(0x2000)))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Key bit must be on");
if (!mask)
mask = &gre_key_default_mask;
ret = mlx5_flow_item_acceptable
(item, (const uint8_t *)mask,
(const uint8_t *)&gre_key_default_mask,
sizeof(rte_be32_t), error);
return ret;
}
/**
* Validate GRE item.
*
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit flags to mark detected items.
* @param[in] target_protocol
* The next protocol in the previous item.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_gre(const struct rte_flow_item *item,
uint64_t item_flags,
uint8_t target_protocol,
struct rte_flow_error *error)
{
const struct rte_flow_item_gre *spec __rte_unused = item->spec;
const struct rte_flow_item_gre *mask = item->mask;
int ret;
const struct rte_flow_item_gre nic_mask = {
.c_rsvd0_ver = RTE_BE16(0xB000),
.protocol = RTE_BE16(UINT16_MAX),
};
if (target_protocol != 0xff && target_protocol != IPPROTO_GRE)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"protocol filtering not compatible"
" with this GRE layer");
if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple tunnel layers not"
" supported");
if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L3))
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"L3 Layer is missing");
if (!mask)
mask = &rte_flow_item_gre_mask;
ret = mlx5_flow_item_acceptable
(item, (const uint8_t *)mask,
(const uint8_t *)&nic_mask,
sizeof(struct rte_flow_item_gre), error);
if (ret < 0)
return ret;
#ifndef HAVE_MLX5DV_DR
#ifndef HAVE_IBV_DEVICE_MPLS_SUPPORT
if (spec && (spec->protocol & mask->protocol))
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"without MPLS support the"
" specification cannot be used for"
" filtering");
#endif
#endif
return 0;
}
/**
* Validate MPLS item.
*
* @param[in] dev
* Pointer to the rte_eth_dev structure.
* @param[in] item
* Item specification.
* @param[in] item_flags
* Bit-fields that holds the items detected until now.
* @param[in] prev_layer
* The protocol layer indicated in previous item.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_validate_item_mpls(struct rte_eth_dev *dev __rte_unused,
const struct rte_flow_item *item __rte_unused,
uint64_t item_flags __rte_unused,
uint64_t prev_layer __rte_unused,
struct rte_flow_error *error)
{
#ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
const struct rte_flow_item_mpls *mask = item->mask;
struct mlx5_priv *priv = dev->data->dev_private;
int ret;
if (!priv->config.mpls_en)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"MPLS not supported or"
" disabled in firmware"
" configuration.");
/* MPLS over IP, UDP, GRE is allowed */
if (!(prev_layer & (MLX5_FLOW_LAYER_OUTER_L3 |
MLX5_FLOW_LAYER_OUTER_L4_UDP |
MLX5_FLOW_LAYER_GRE)))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"protocol filtering not compatible"
" with MPLS layer");
/* Multi-tunnel isn't allowed but MPLS over GRE is an exception. */
if ((item_flags & MLX5_FLOW_LAYER_TUNNEL) &&
!(item_flags & MLX5_FLOW_LAYER_GRE))
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"multiple tunnel layers not"
" supported");
if (!mask)
mask = &rte_flow_item_mpls_mask;
ret = mlx5_flow_item_acceptable
(item, (const uint8_t *)mask,
(const uint8_t *)&rte_flow_item_mpls_mask,
sizeof(struct rte_flow_item_mpls), error);
if (ret < 0)
return ret;
return 0;
#endif
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"MPLS is not supported by Verbs, please"
" update.");
}
static int
flow_null_validate(struct rte_eth_dev *dev __rte_unused,
const struct rte_flow_attr *attr __rte_unused,
const struct rte_flow_item items[] __rte_unused,
const struct rte_flow_action actions[] __rte_unused,
struct rte_flow_error *error)
{
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
}
static struct mlx5_flow *
flow_null_prepare(const struct rte_flow_attr *attr __rte_unused,
const struct rte_flow_item items[] __rte_unused,
const struct rte_flow_action actions[] __rte_unused,
struct rte_flow_error *error)
{
rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
return NULL;
}
static int
flow_null_translate(struct rte_eth_dev *dev __rte_unused,
struct mlx5_flow *dev_flow __rte_unused,
const struct rte_flow_attr *attr __rte_unused,
const struct rte_flow_item items[] __rte_unused,
const struct rte_flow_action actions[] __rte_unused,
struct rte_flow_error *error)
{
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
}
static int
flow_null_apply(struct rte_eth_dev *dev __rte_unused,
struct rte_flow *flow __rte_unused,
struct rte_flow_error *error)
{
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
}
static void
flow_null_remove(struct rte_eth_dev *dev __rte_unused,
struct rte_flow *flow __rte_unused)
{
}
static void
flow_null_destroy(struct rte_eth_dev *dev __rte_unused,
struct rte_flow *flow __rte_unused)
{
}
static int
flow_null_query(struct rte_eth_dev *dev __rte_unused,
struct rte_flow *flow __rte_unused,
const struct rte_flow_action *actions __rte_unused,
void *data __rte_unused,
struct rte_flow_error *error)
{
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
}
/* Void driver to protect from null pointer reference. */
const struct mlx5_flow_driver_ops mlx5_flow_null_drv_ops = {
.validate = flow_null_validate,
.prepare = flow_null_prepare,
.translate = flow_null_translate,
.apply = flow_null_apply,
.remove = flow_null_remove,
.destroy = flow_null_destroy,
.query = flow_null_query,
};
/**
* Select flow driver type according to flow attributes and device
* configuration.
*
* @param[in] dev
* Pointer to the dev structure.
* @param[in] attr
* Pointer to the flow attributes.
*
* @return
* flow driver type, MLX5_FLOW_TYPE_MAX otherwise.
*/
static enum mlx5_flow_drv_type
flow_get_drv_type(struct rte_eth_dev *dev, const struct rte_flow_attr *attr)
{
struct mlx5_priv *priv = dev->data->dev_private;
enum mlx5_flow_drv_type type = MLX5_FLOW_TYPE_MAX;
if (attr->transfer && priv->config.dv_esw_en)
type = MLX5_FLOW_TYPE_DV;
if (!attr->transfer)
type = priv->config.dv_flow_en ? MLX5_FLOW_TYPE_DV :
MLX5_FLOW_TYPE_VERBS;
return type;
}
#define flow_get_drv_ops(type) flow_drv_ops[type]
/**
* Flow driver validation API. This abstracts calling driver specific functions.
* The type of flow driver is determined according to flow attributes.
*
* @param[in] dev
* Pointer to the dev structure.
* @param[in] attr
* Pointer to the flow attributes.
* @param[in] items
* Pointer to the list of items.
* @param[in] actions
* Pointer to the list of actions.
* @param[out] error
* Pointer to the error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static inline int
flow_drv_validate(struct rte_eth_dev *dev,
const struct rte_flow_attr *attr,
const struct rte_flow_item items[],
const struct rte_flow_action actions[],
struct rte_flow_error *error)
{
const struct mlx5_flow_driver_ops *fops;
enum mlx5_flow_drv_type type = flow_get_drv_type(dev, attr);
fops = flow_get_drv_ops(type);
return fops->validate(dev, attr, items, actions, error);
}
/**
* Flow driver preparation API. This abstracts calling driver specific
* functions. Parent flow (rte_flow) should have driver type (drv_type). It
* calculates the size of memory required for device flow, allocates the memory,
* initializes the device flow and returns the pointer.
*
* @note
* This function initializes device flow structure such as dv or verbs in
* struct mlx5_flow. However, it is caller's responsibility to initialize the
* rest. For example, adding returning device flow to flow->dev_flow list and
* setting backward reference to the flow should be done out of this function.
* layers field is not filled either.
*
* @param[in] attr
* Pointer to the flow attributes.
* @param[in] items
* Pointer to the list of items.
* @param[in] actions
* Pointer to the list of actions.
* @param[out] error
* Pointer to the error structure.
*
* @return
* Pointer to device flow on success, otherwise NULL and rte_errno is set.
*/
static inline struct mlx5_flow *
flow_drv_prepare(const struct rte_flow *flow,
const struct rte_flow_attr *attr,
const struct rte_flow_item items[],
const struct rte_flow_action actions[],
struct rte_flow_error *error)
{
const struct mlx5_flow_driver_ops *fops;
enum mlx5_flow_drv_type type = flow->drv_type;
assert(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
fops = flow_get_drv_ops(type);
return fops->prepare(attr, items, actions, error);
}
/**
* Flow driver translation API. This abstracts calling driver specific
* functions. Parent flow (rte_flow) should have driver type (drv_type). It
* translates a generic flow into a driver flow. flow_drv_prepare() must
* precede.
*
* @note
* dev_flow->layers could be filled as a result of parsing during translation
* if needed by flow_drv_apply(). dev_flow->flow->actions can also be filled
* if necessary. As a flow can have multiple dev_flows by RSS flow expansion,
* flow->actions could be overwritten even though all the expanded dev_flows
* have the same actions.
*
* @param[in] dev
* Pointer to the rte dev structure.
* @param[in, out] dev_flow
* Pointer to the mlx5 flow.
* @param[in] attr
* Pointer to the flow attributes.
* @param[in] items
* Pointer to the list of items.
* @param[in] actions
* Pointer to the list of actions.
* @param[out] error
* Pointer to the error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static inline int
flow_drv_translate(struct rte_eth_dev *dev, struct mlx5_flow *dev_flow,
const struct rte_flow_attr *attr,
const struct rte_flow_item items[],
const struct rte_flow_action actions[],
struct rte_flow_error *error)
{
const struct mlx5_flow_driver_ops *fops;
enum mlx5_flow_drv_type type = dev_flow->flow->drv_type;
assert(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
fops = flow_get_drv_ops(type);
return fops->translate(dev, dev_flow, attr, items, actions, error);
}
/**
* Flow driver apply API. This abstracts calling driver specific functions.
* Parent flow (rte_flow) should have driver type (drv_type). It applies
* translated driver flows on to device. flow_drv_translate() must precede.
*
* @param[in] dev
* Pointer to Ethernet device structure.
* @param[in, out] flow
* Pointer to flow structure.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static inline int
flow_drv_apply(struct rte_eth_dev *dev, struct rte_flow *flow,
struct rte_flow_error *error)
{
const struct mlx5_flow_driver_ops *fops;
enum mlx5_flow_drv_type type = flow->drv_type;
assert(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
fops = flow_get_drv_ops(type);
return fops->apply(dev, flow, error);
}
/**
* Flow driver remove API. This abstracts calling driver specific functions.
* Parent flow (rte_flow) should have driver type (drv_type). It removes a flow
* on device. All the resources of the flow should be freed by calling
* flow_drv_destroy().
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in, out] flow
* Pointer to flow structure.
*/
static inline void
flow_drv_remove(struct rte_eth_dev *dev, struct rte_flow *flow)
{
const struct mlx5_flow_driver_ops *fops;
enum mlx5_flow_drv_type type = flow->drv_type;
assert(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
fops = flow_get_drv_ops(type);
fops->remove(dev, flow);
}
/**
* Flow driver destroy API. This abstracts calling driver specific functions.
* Parent flow (rte_flow) should have driver type (drv_type). It removes a flow
* on device and releases resources of the flow.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in, out] flow
* Pointer to flow structure.
*/
static inline void
flow_drv_destroy(struct rte_eth_dev *dev, struct rte_flow *flow)
{
const struct mlx5_flow_driver_ops *fops;
enum mlx5_flow_drv_type type = flow->drv_type;
assert(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
fops = flow_get_drv_ops(type);
fops->destroy(dev, flow);
}
/**
* 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)
{
int ret;
ret = flow_drv_validate(dev, attr, items, actions, error);
if (ret < 0)
return ret;
return 0;
}
/**
* Get RSS action from the action list.
*
* @param[in] actions
* Pointer to the list of actions.
*
* @return
* Pointer to the RSS action if exist, else return NULL.
*/
static const struct rte_flow_action_rss*
flow_get_rss_action(const struct rte_flow_action actions[])
{
for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
switch (actions->type) {
case RTE_FLOW_ACTION_TYPE_RSS:
return (const struct rte_flow_action_rss *)
actions->conf;
default:
break;
}
}
return NULL;
}
static unsigned int
find_graph_root(const struct rte_flow_item pattern[], uint32_t rss_level)
{
const struct rte_flow_item *item;
unsigned int has_vlan = 0;
for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
if (item->type == RTE_FLOW_ITEM_TYPE_VLAN) {
has_vlan = 1;
break;
}
}
if (has_vlan)
return rss_level < 2 ? MLX5_EXPANSION_ROOT_ETH_VLAN :
MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN;
return rss_level < 2 ? MLX5_EXPANSION_ROOT :
MLX5_EXPANSION_ROOT_OUTER;
}
/**
* Create a flow and add it to @p list.
*
* @param dev
* Pointer to Ethernet device.
* @param list
* Pointer to a TAILQ flow list.
* @param[in] attr
* Flow rule attributes.
* @param[in] items
* Pattern specification (list terminated by the END pattern item).
* @param[in] actions
* Associated actions (list terminated by the END action).
* @param[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 *
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 rte_flow *flow = NULL;
struct mlx5_flow *dev_flow;
const struct rte_flow_action_rss *rss;
union {
struct rte_flow_expand_rss buf;
uint8_t buffer[2048];
} expand_buffer;
struct rte_flow_expand_rss *buf = &expand_buffer.buf;
int ret;
uint32_t i;
uint32_t flow_size;
ret = flow_drv_validate(dev, attr, items, actions, error);
if (ret < 0)
return NULL;
flow_size = sizeof(struct rte_flow);
rss = flow_get_rss_action(actions);
if (rss)
flow_size += RTE_ALIGN_CEIL(rss->queue_num * sizeof(uint16_t),
sizeof(void *));
else
flow_size += RTE_ALIGN_CEIL(sizeof(uint16_t), sizeof(void *));
flow = rte_calloc(__func__, 1, flow_size, 0);
if (!flow) {
rte_errno = ENOMEM;
return NULL;
}
flow->drv_type = flow_get_drv_type(dev, attr);
flow->ingress = attr->ingress;
flow->transfer = attr->transfer;
assert(flow->drv_type > MLX5_FLOW_TYPE_MIN &&
flow->drv_type < MLX5_FLOW_TYPE_MAX);
flow->queue = (void *)(flow + 1);
LIST_INIT(&flow->dev_flows);
if (rss && rss->types) {
unsigned int graph_root;
graph_root = find_graph_root(items, rss->level);
ret = rte_flow_expand_rss(buf, sizeof(expand_buffer.buffer),
items, rss->types,
mlx5_support_expansion,
graph_root);
assert(ret > 0 &&
(unsigned int)ret < sizeof(expand_buffer.buffer));
} else {
buf->entries = 1;
buf->entry[0].pattern = (void *)(uintptr_t)items;
}
for (i = 0; i < buf->entries; ++i) {
dev_flow = flow_drv_prepare(flow, attr, buf->entry[i].pattern,
actions, error);
if (!dev_flow)
goto error;
dev_flow->flow = flow;
LIST_INSERT_HEAD(&flow->dev_flows, dev_flow, next);
ret = flow_drv_translate(dev, dev_flow, attr,
buf->entry[i].pattern,
actions, error);
if (ret < 0)
goto error;
}
if (dev->data->dev_started) {
ret = flow_drv_apply(dev, flow, error);
if (ret < 0)
goto error;
}
TAILQ_INSERT_TAIL(list, flow, next);
flow_rxq_flags_set(dev, flow);
return flow;
error:
ret = rte_errno; /* Save rte_errno before cleanup. */
assert(flow);
flow_drv_destroy(dev, flow);
rte_free(flow);
rte_errno = ret; /* Restore rte_errno. */
return NULL;
}
/**
* Create a flow.
*
* @see rte_flow_create()
* @see rte_flow_ops
*/
struct rte_flow *
mlx5_flow_create(struct rte_eth_dev *dev,
const struct rte_flow_attr *attr,
const struct rte_flow_item items[],
const struct rte_flow_action actions[],
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
return 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
flow_list_destroy(struct rte_eth_dev *dev, struct mlx5_flows *list,
struct rte_flow *flow)
{
/*
* Update RX queue flags only if port is started, otherwise it is
* already clean.
*/
if (dev->data->dev_started)
flow_rxq_flags_trim(dev, flow);
flow_drv_destroy(dev, flow);
TAILQ_REMOVE(list, flow, next);
rte_free(flow->fdir);
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);
flow_list_destroy(dev, list, flow);
}
}
/**
* 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 rte_flow *flow;
TAILQ_FOREACH_REVERSE(flow, list, mlx5_flows, next)
flow_drv_remove(dev, flow);
flow_rxq_flags_clear(dev);
}
/**
* 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 rte_flow *flow;
struct rte_flow_error error;
int ret = 0;
TAILQ_FOREACH(flow, list, next) {
ret = flow_drv_apply(dev, flow, &error);
if (ret < 0)
goto error;
flow_rxq_flags_set(dev, flow);
}
return 0;
error:
ret = rte_errno; /* Save rte_errno before cleanup. */
mlx5_flow_stop(dev, list);
rte_errno = ret; /* Restore rte_errno. */
return -rte_errno;
}
/**
* Verify the flow list is empty
*
* @param dev
* Pointer to Ethernet device.
*
* @return the number of flows not released.
*/
int
mlx5_flow_verify(struct rte_eth_dev *dev)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct rte_flow *flow;
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 mlx5_priv *priv = dev->data->dev_private;
const struct rte_flow_attr attr = {
.ingress = 1,
.priority = MLX5_FLOW_PRIO_RSVD,
};
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 || !priv->rxqs_n) {
return 0;
}
for (i = 0; i != priv->reta_idx_n; ++i)
queue[i] = (*priv->reta_idx)[i];
flow = 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 mlx5_priv *priv = dev->data->dev_private;
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 mlx5_priv *priv = dev->data->dev_private;
mlx5_flow_list_flush(dev, &priv->flows);
return 0;
}
/**
* Isolated mode.
*
* @see rte_flow_isolate()
* @see rte_flow_ops
*/
int
mlx5_flow_isolate(struct rte_eth_dev *dev,
int enable,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
if (dev->data->dev_started) {
rte_flow_error_set(error, EBUSY,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL,
"port must be stopped first");
return -rte_errno;
}
priv->isolated = !!enable;
if (enable)
dev->dev_ops = &mlx5_dev_ops_isolate;
else
dev->dev_ops = &mlx5_dev_ops;
return 0;
}
/**
* Query a flow.
*
* @see rte_flow_query()
* @see rte_flow_ops
*/
static int
flow_drv_query(struct rte_eth_dev *dev,
struct rte_flow *flow,
const struct rte_flow_action *actions,
void *data,
struct rte_flow_error *error)
{
const struct mlx5_flow_driver_ops *fops;
enum mlx5_flow_drv_type ftype = flow->drv_type;
assert(ftype > MLX5_FLOW_TYPE_MIN && ftype < MLX5_FLOW_TYPE_MAX);
fops = flow_get_drv_ops(ftype);
return fops->query(dev, flow, actions, data, error);
}
/**
* Query a flow.
*
* @see rte_flow_query()
* @see rte_flow_ops
*/
int
mlx5_flow_query(struct rte_eth_dev *dev,
struct rte_flow *flow,
const struct rte_flow_action *actions,
void *data,
struct rte_flow_error *error)
{
int ret;
ret = flow_drv_query(dev, flow, actions, data, error);
if (ret < 0)
return ret;
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
flow_fdir_filter_convert(struct rte_eth_dev *dev,
const struct rte_eth_fdir_filter *fdir_filter,
struct mlx5_fdir *attributes)
{
struct mlx5_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 rte_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,
};
attributes->l3_mask.ipv4.hdr = (struct rte_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 rte_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 rte_udp_hdr){
.src_port = input->flow.udp4_flow.src_port,
.dst_port = input->flow.udp4_flow.dst_port,
};
attributes->l4_mask.udp.hdr = (struct rte_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 rte_tcp_hdr){
.src_port = input->flow.tcp4_flow.src_port,
.dst_port = input->flow.tcp4_flow.dst_port,
};
attributes->l4_mask.tcp.hdr = (struct rte_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 rte_udp_hdr){
.src_port = input->flow.udp6_flow.src_port,
.dst_port = input->flow.udp6_flow.dst_port,
};
attributes->l4_mask.udp.hdr = (struct rte_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 rte_tcp_hdr){
.src_port = input->flow.tcp6_flow.src_port,
.dst_port = input->flow.tcp6_flow.dst_port,
};
attributes->l4_mask.tcp.hdr = (struct rte_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;
}
#define FLOW_FDIR_CMP(f1, f2, fld) \
memcmp(&(f1)->fld, &(f2)->fld, sizeof(f1->fld))
/**
* Compare two FDIR flows. If items and actions are identical, the two flows are
* regarded as same.
*
* @param dev
* Pointer to Ethernet device.
* @param f1
* FDIR flow to compare.
* @param f2
* FDIR flow to compare.
*
* @return
* Zero on match, 1 otherwise.
*/
static int
flow_fdir_cmp(const struct mlx5_fdir *f1, const struct mlx5_fdir *f2)
{
if (FLOW_FDIR_CMP(f1, f2, attr) ||
FLOW_FDIR_CMP(f1, f2, l2) ||
FLOW_FDIR_CMP(f1, f2, l2_mask) ||
FLOW_FDIR_CMP(f1, f2, l3) ||
FLOW_FDIR_CMP(f1, f2, l3_mask) ||
FLOW_FDIR_CMP(f1, f2, l4) ||
FLOW_FDIR_CMP(f1, f2, l4_mask) ||
FLOW_FDIR_CMP(f1, f2, actions[0].type))
return 1;
if (f1->actions[0].type == RTE_FLOW_ACTION_TYPE_QUEUE &&
FLOW_FDIR_CMP(f1, f2, queue))
return 1;
return 0;
}
/**
* Search device flow list to find out a matched FDIR flow.
*
* @param dev
* Pointer to Ethernet device.
* @param fdir_flow
* FDIR flow to lookup.
*
* @return
* Pointer of flow if found, NULL otherwise.
*/
static struct rte_flow *
flow_fdir_filter_lookup(struct rte_eth_dev *dev, struct mlx5_fdir *fdir_flow)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct rte_flow *flow = NULL;
assert(fdir_flow);
TAILQ_FOREACH(flow, &priv->flows, next) {
if (flow->fdir && !flow_fdir_cmp(flow->fdir, fdir_flow)) {
DRV_LOG(DEBUG, "port %u found FDIR flow %p",
dev->data->port_id, (void *)flow);
break;
}
}
return flow;
}
/**
* 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
flow_fdir_filter_add(struct rte_eth_dev *dev,
const struct rte_eth_fdir_filter *fdir_filter)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_fdir *fdir_flow;
struct rte_flow *flow;
int ret;
fdir_flow = rte_zmalloc(__func__, sizeof(*fdir_flow), 0);
if (!fdir_flow) {
rte_errno = ENOMEM;
return -rte_errno;
}
ret = flow_fdir_filter_convert(dev, fdir_filter, fdir_flow);
if (ret)
goto error;
flow = flow_fdir_filter_lookup(dev, fdir_flow);
if (flow) {
rte_errno = EEXIST;
goto error;
}
flow = flow_list_create(dev, &priv->flows, &fdir_flow->attr,
fdir_flow->items, fdir_flow->actions, NULL);
if (!flow)
goto error;
assert(!flow->fdir);
flow->fdir = fdir_flow;
DRV_LOG(DEBUG, "port %u created FDIR flow %p",
dev->data->port_id, (void *)flow);
return 0;
error:
rte_free(fdir_flow);
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
flow_fdir_filter_delete(struct rte_eth_dev *dev,
const struct rte_eth_fdir_filter *fdir_filter)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct rte_flow *flow;
struct mlx5_fdir fdir_flow = {
.attr.group = 0,
};
int ret;
ret = flow_fdir_filter_convert(dev, fdir_filter, &fdir_flow);
if (ret)
return -rte_errno;
flow = flow_fdir_filter_lookup(dev, &fdir_flow);
if (!flow) {
rte_errno = ENOENT;
return -rte_errno;
}
flow_list_destroy(dev, &priv->flows, flow);
DRV_LOG(DEBUG, "port %u deleted FDIR flow %p",
dev->data->port_id, (void *)flow);
return 0;
}
/**
* 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
flow_fdir_filter_update(struct rte_eth_dev *dev,
const struct rte_eth_fdir_filter *fdir_filter)
{
int ret;
ret = flow_fdir_filter_delete(dev, fdir_filter);
if (ret)
return ret;
return flow_fdir_filter_add(dev, fdir_filter);
}
/**
* Flush all filters.
*
* @param dev
* Pointer to Ethernet device.
*/
static void
flow_fdir_filter_flush(struct rte_eth_dev *dev)
{
struct mlx5_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
flow_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
flow_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 flow_fdir_filter_add(dev, arg);
case RTE_ETH_FILTER_UPDATE:
return flow_fdir_filter_update(dev, arg);
case RTE_ETH_FILTER_DELETE:
return flow_fdir_filter_delete(dev, arg);
case RTE_ETH_FILTER_FLUSH:
flow_fdir_filter_flush(dev);
break;
case RTE_ETH_FILTER_INFO:
flow_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 flow_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;
}
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