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numam-dpdk/drivers/net/mlx5/mlx5_flow_dv.c
Viacheslav Ovsiienko 79e35d0d59 net/mlx5: share Direct Rules/Verbs flow related structures 
Direct Rules/Verbs related structures are moved to
the shared context:
  - rx/tx namespaces, shared by master and representors
  - rx/tx flow tables
  - matchers
  - encap/decap action resources
  - flow tags (MARK actions)
  - modify action resources
  - jump tables

Signed-off-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
Acked-by: Shahaf Shuler <shahafs@mellanox.com>
2019-04-05 17:45:22 +02:00

4074 lines
115 KiB
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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright 2018 Mellanox Technologies, Ltd
*/
#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_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 <rte_gre.h>
#include "mlx5.h"
#include "mlx5_defs.h"
#include "mlx5_prm.h"
#include "mlx5_glue.h"
#include "mlx5_flow.h"
#ifdef HAVE_IBV_FLOW_DV_SUPPORT
#ifndef HAVE_IBV_FLOW_DEVX_COUNTERS
#define MLX5DV_FLOW_ACTION_COUNTERS_DEVX 0
#endif
union flow_dv_attr {
struct {
uint32_t valid:1;
uint32_t ipv4:1;
uint32_t ipv6:1;
uint32_t tcp:1;
uint32_t udp:1;
uint32_t reserved:27;
};
uint32_t attr;
};
/**
* Initialize flow attributes structure according to flow items' types.
*
* @param[in] item
* Pointer to item specification.
* @param[out] attr
* Pointer to flow attributes structure.
*/
static void
flow_dv_attr_init(const struct rte_flow_item *item, union flow_dv_attr *attr)
{
for (; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
switch (item->type) {
case RTE_FLOW_ITEM_TYPE_IPV4:
attr->ipv4 = 1;
break;
case RTE_FLOW_ITEM_TYPE_IPV6:
attr->ipv6 = 1;
break;
case RTE_FLOW_ITEM_TYPE_UDP:
attr->udp = 1;
break;
case RTE_FLOW_ITEM_TYPE_TCP:
attr->tcp = 1;
break;
default:
break;
}
}
attr->valid = 1;
}
struct field_modify_info {
uint32_t size; /* Size of field in protocol header, in bytes. */
uint32_t offset; /* Offset of field in protocol header, in bytes. */
enum mlx5_modification_field id;
};
struct field_modify_info modify_eth[] = {
{4, 0, MLX5_MODI_OUT_DMAC_47_16},
{2, 4, MLX5_MODI_OUT_DMAC_15_0},
{4, 6, MLX5_MODI_OUT_SMAC_47_16},
{2, 10, MLX5_MODI_OUT_SMAC_15_0},
{0, 0, 0},
};
struct field_modify_info modify_ipv4[] = {
{1, 8, MLX5_MODI_OUT_IPV4_TTL},
{4, 12, MLX5_MODI_OUT_SIPV4},
{4, 16, MLX5_MODI_OUT_DIPV4},
{0, 0, 0},
};
struct field_modify_info modify_ipv6[] = {
{1, 7, MLX5_MODI_OUT_IPV6_HOPLIMIT},
{4, 8, MLX5_MODI_OUT_SIPV6_127_96},
{4, 12, MLX5_MODI_OUT_SIPV6_95_64},
{4, 16, MLX5_MODI_OUT_SIPV6_63_32},
{4, 20, MLX5_MODI_OUT_SIPV6_31_0},
{4, 24, MLX5_MODI_OUT_DIPV6_127_96},
{4, 28, MLX5_MODI_OUT_DIPV6_95_64},
{4, 32, MLX5_MODI_OUT_DIPV6_63_32},
{4, 36, MLX5_MODI_OUT_DIPV6_31_0},
{0, 0, 0},
};
struct field_modify_info modify_udp[] = {
{2, 0, MLX5_MODI_OUT_UDP_SPORT},
{2, 2, MLX5_MODI_OUT_UDP_DPORT},
{0, 0, 0},
};
struct field_modify_info modify_tcp[] = {
{2, 0, MLX5_MODI_OUT_TCP_SPORT},
{2, 2, MLX5_MODI_OUT_TCP_DPORT},
{0, 0, 0},
};
/**
* Acquire the synchronizing object to protect multithreaded access
* to shared dv context. Lock occurs only if context is actually
* shared, i.e. we have multiport IB device and representors are
* created.
*
* @param[in] dev
* Pointer to the rte_eth_dev structure.
*/
static void
flow_d_shared_lock(struct rte_eth_dev *dev)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_ibv_shared *sh = priv->sh;
if (sh->dv_refcnt > 1) {
int ret;
ret = pthread_mutex_lock(&sh->dv_mutex);
assert(!ret);
(void)ret;
}
}
static void
flow_d_shared_unlock(struct rte_eth_dev *dev)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_ibv_shared *sh = priv->sh;
if (sh->dv_refcnt > 1) {
int ret;
ret = pthread_mutex_unlock(&sh->dv_mutex);
assert(!ret);
(void)ret;
}
}
/**
* Convert modify-header action to DV specification.
*
* @param[in] item
* Pointer to item specification.
* @param[in] field
* Pointer to field modification information.
* @param[in,out] resource
* Pointer to the modify-header resource.
* @param[in] type
* Type of modification.
* @param[out] error
* Pointer to the error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
flow_dv_convert_modify_action(struct rte_flow_item *item,
struct field_modify_info *field,
struct mlx5_flow_dv_modify_hdr_resource *resource,
uint32_t type,
struct rte_flow_error *error)
{
uint32_t i = resource->actions_num;
struct mlx5_modification_cmd *actions = resource->actions;
const uint8_t *spec = item->spec;
const uint8_t *mask = item->mask;
uint32_t set;
while (field->size) {
set = 0;
/* Generate modify command for each mask segment. */
memcpy(&set, &mask[field->offset], field->size);
if (set) {
if (i >= MLX5_MODIFY_NUM)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"too many items to modify");
actions[i].action_type = type;
actions[i].field = field->id;
actions[i].length = field->size ==
4 ? 0 : field->size * 8;
rte_memcpy(&actions[i].data[4 - field->size],
&spec[field->offset], field->size);
actions[i].data0 = rte_cpu_to_be_32(actions[i].data0);
++i;
}
if (resource->actions_num != i)
resource->actions_num = i;
field++;
}
if (!resource->actions_num)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"invalid modification flow item");
return 0;
}
/**
* Convert modify-header set IPv4 address action to DV specification.
*
* @param[in,out] resource
* Pointer to the modify-header resource.
* @param[in] action
* Pointer to action specification.
* @param[out] error
* Pointer to the error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
flow_dv_convert_action_modify_ipv4
(struct mlx5_flow_dv_modify_hdr_resource *resource,
const struct rte_flow_action *action,
struct rte_flow_error *error)
{
const struct rte_flow_action_set_ipv4 *conf =
(const struct rte_flow_action_set_ipv4 *)(action->conf);
struct rte_flow_item item = { .type = RTE_FLOW_ITEM_TYPE_IPV4 };
struct rte_flow_item_ipv4 ipv4;
struct rte_flow_item_ipv4 ipv4_mask;
memset(&ipv4, 0, sizeof(ipv4));
memset(&ipv4_mask, 0, sizeof(ipv4_mask));
if (action->type == RTE_FLOW_ACTION_TYPE_SET_IPV4_SRC) {
ipv4.hdr.src_addr = conf->ipv4_addr;
ipv4_mask.hdr.src_addr = rte_flow_item_ipv4_mask.hdr.src_addr;
} else {
ipv4.hdr.dst_addr = conf->ipv4_addr;
ipv4_mask.hdr.dst_addr = rte_flow_item_ipv4_mask.hdr.dst_addr;
}
item.spec = &ipv4;
item.mask = &ipv4_mask;
return flow_dv_convert_modify_action(&item, modify_ipv4, resource,
MLX5_MODIFICATION_TYPE_SET, error);
}
/**
* Convert modify-header set IPv6 address action to DV specification.
*
* @param[in,out] resource
* Pointer to the modify-header resource.
* @param[in] action
* Pointer to action specification.
* @param[out] error
* Pointer to the error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
flow_dv_convert_action_modify_ipv6
(struct mlx5_flow_dv_modify_hdr_resource *resource,
const struct rte_flow_action *action,
struct rte_flow_error *error)
{
const struct rte_flow_action_set_ipv6 *conf =
(const struct rte_flow_action_set_ipv6 *)(action->conf);
struct rte_flow_item item = { .type = RTE_FLOW_ITEM_TYPE_IPV6 };
struct rte_flow_item_ipv6 ipv6;
struct rte_flow_item_ipv6 ipv6_mask;
memset(&ipv6, 0, sizeof(ipv6));
memset(&ipv6_mask, 0, sizeof(ipv6_mask));
if (action->type == RTE_FLOW_ACTION_TYPE_SET_IPV6_SRC) {
memcpy(&ipv6.hdr.src_addr, &conf->ipv6_addr,
sizeof(ipv6.hdr.src_addr));
memcpy(&ipv6_mask.hdr.src_addr,
&rte_flow_item_ipv6_mask.hdr.src_addr,
sizeof(ipv6.hdr.src_addr));
} else {
memcpy(&ipv6.hdr.dst_addr, &conf->ipv6_addr,
sizeof(ipv6.hdr.dst_addr));
memcpy(&ipv6_mask.hdr.dst_addr,
&rte_flow_item_ipv6_mask.hdr.dst_addr,
sizeof(ipv6.hdr.dst_addr));
}
item.spec = &ipv6;
item.mask = &ipv6_mask;
return flow_dv_convert_modify_action(&item, modify_ipv6, resource,
MLX5_MODIFICATION_TYPE_SET, error);
}
/**
* Convert modify-header set MAC address action to DV specification.
*
* @param[in,out] resource
* Pointer to the modify-header resource.
* @param[in] action
* Pointer to action specification.
* @param[out] error
* Pointer to the error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
flow_dv_convert_action_modify_mac
(struct mlx5_flow_dv_modify_hdr_resource *resource,
const struct rte_flow_action *action,
struct rte_flow_error *error)
{
const struct rte_flow_action_set_mac *conf =
(const struct rte_flow_action_set_mac *)(action->conf);
struct rte_flow_item item = { .type = RTE_FLOW_ITEM_TYPE_ETH };
struct rte_flow_item_eth eth;
struct rte_flow_item_eth eth_mask;
memset(&eth, 0, sizeof(eth));
memset(&eth_mask, 0, sizeof(eth_mask));
if (action->type == RTE_FLOW_ACTION_TYPE_SET_MAC_SRC) {
memcpy(&eth.src.addr_bytes, &conf->mac_addr,
sizeof(eth.src.addr_bytes));
memcpy(&eth_mask.src.addr_bytes,
&rte_flow_item_eth_mask.src.addr_bytes,
sizeof(eth_mask.src.addr_bytes));
} else {
memcpy(&eth.dst.addr_bytes, &conf->mac_addr,
sizeof(eth.dst.addr_bytes));
memcpy(&eth_mask.dst.addr_bytes,
&rte_flow_item_eth_mask.dst.addr_bytes,
sizeof(eth_mask.dst.addr_bytes));
}
item.spec = &eth;
item.mask = &eth_mask;
return flow_dv_convert_modify_action(&item, modify_eth, resource,
MLX5_MODIFICATION_TYPE_SET, error);
}
/**
* Convert modify-header set TP action to DV specification.
*
* @param[in,out] resource
* Pointer to the modify-header resource.
* @param[in] action
* Pointer to action specification.
* @param[in] items
* Pointer to rte_flow_item objects list.
* @param[in] attr
* Pointer to flow attributes structure.
* @param[out] error
* Pointer to the error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
flow_dv_convert_action_modify_tp
(struct mlx5_flow_dv_modify_hdr_resource *resource,
const struct rte_flow_action *action,
const struct rte_flow_item *items,
union flow_dv_attr *attr,
struct rte_flow_error *error)
{
const struct rte_flow_action_set_tp *conf =
(const struct rte_flow_action_set_tp *)(action->conf);
struct rte_flow_item item;
struct rte_flow_item_udp udp;
struct rte_flow_item_udp udp_mask;
struct rte_flow_item_tcp tcp;
struct rte_flow_item_tcp tcp_mask;
struct field_modify_info *field;
if (!attr->valid)
flow_dv_attr_init(items, attr);
if (attr->udp) {
memset(&udp, 0, sizeof(udp));
memset(&udp_mask, 0, sizeof(udp_mask));
if (action->type == RTE_FLOW_ACTION_TYPE_SET_TP_SRC) {
udp.hdr.src_port = conf->port;
udp_mask.hdr.src_port =
rte_flow_item_udp_mask.hdr.src_port;
} else {
udp.hdr.dst_port = conf->port;
udp_mask.hdr.dst_port =
rte_flow_item_udp_mask.hdr.dst_port;
}
item.type = RTE_FLOW_ITEM_TYPE_UDP;
item.spec = &udp;
item.mask = &udp_mask;
field = modify_udp;
}
if (attr->tcp) {
memset(&tcp, 0, sizeof(tcp));
memset(&tcp_mask, 0, sizeof(tcp_mask));
if (action->type == RTE_FLOW_ACTION_TYPE_SET_TP_SRC) {
tcp.hdr.src_port = conf->port;
tcp_mask.hdr.src_port =
rte_flow_item_tcp_mask.hdr.src_port;
} else {
tcp.hdr.dst_port = conf->port;
tcp_mask.hdr.dst_port =
rte_flow_item_tcp_mask.hdr.dst_port;
}
item.type = RTE_FLOW_ITEM_TYPE_TCP;
item.spec = &tcp;
item.mask = &tcp_mask;
field = modify_tcp;
}
return flow_dv_convert_modify_action(&item, field, resource,
MLX5_MODIFICATION_TYPE_SET, error);
}
/**
* Convert modify-header set TTL action to DV specification.
*
* @param[in,out] resource
* Pointer to the modify-header resource.
* @param[in] action
* Pointer to action specification.
* @param[in] items
* Pointer to rte_flow_item objects list.
* @param[in] attr
* Pointer to flow attributes structure.
* @param[out] error
* Pointer to the error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
flow_dv_convert_action_modify_ttl
(struct mlx5_flow_dv_modify_hdr_resource *resource,
const struct rte_flow_action *action,
const struct rte_flow_item *items,
union flow_dv_attr *attr,
struct rte_flow_error *error)
{
const struct rte_flow_action_set_ttl *conf =
(const struct rte_flow_action_set_ttl *)(action->conf);
struct rte_flow_item item;
struct rte_flow_item_ipv4 ipv4;
struct rte_flow_item_ipv4 ipv4_mask;
struct rte_flow_item_ipv6 ipv6;
struct rte_flow_item_ipv6 ipv6_mask;
struct field_modify_info *field;
if (!attr->valid)
flow_dv_attr_init(items, attr);
if (attr->ipv4) {
memset(&ipv4, 0, sizeof(ipv4));
memset(&ipv4_mask, 0, sizeof(ipv4_mask));
ipv4.hdr.time_to_live = conf->ttl_value;
ipv4_mask.hdr.time_to_live = 0xFF;
item.type = RTE_FLOW_ITEM_TYPE_IPV4;
item.spec = &ipv4;
item.mask = &ipv4_mask;
field = modify_ipv4;
}
if (attr->ipv6) {
memset(&ipv6, 0, sizeof(ipv6));
memset(&ipv6_mask, 0, sizeof(ipv6_mask));
ipv6.hdr.hop_limits = conf->ttl_value;
ipv6_mask.hdr.hop_limits = 0xFF;
item.type = RTE_FLOW_ITEM_TYPE_IPV6;
item.spec = &ipv6;
item.mask = &ipv6_mask;
field = modify_ipv6;
}
return flow_dv_convert_modify_action(&item, field, resource,
MLX5_MODIFICATION_TYPE_SET, error);
}
/**
* Convert modify-header decrement TTL action to DV specification.
*
* @param[in,out] resource
* Pointer to the modify-header resource.
* @param[in] action
* Pointer to action specification.
* @param[in] items
* Pointer to rte_flow_item objects list.
* @param[in] attr
* Pointer to flow attributes structure.
* @param[out] error
* Pointer to the error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
flow_dv_convert_action_modify_dec_ttl
(struct mlx5_flow_dv_modify_hdr_resource *resource,
const struct rte_flow_item *items,
union flow_dv_attr *attr,
struct rte_flow_error *error)
{
struct rte_flow_item item;
struct rte_flow_item_ipv4 ipv4;
struct rte_flow_item_ipv4 ipv4_mask;
struct rte_flow_item_ipv6 ipv6;
struct rte_flow_item_ipv6 ipv6_mask;
struct field_modify_info *field;
if (!attr->valid)
flow_dv_attr_init(items, attr);
if (attr->ipv4) {
memset(&ipv4, 0, sizeof(ipv4));
memset(&ipv4_mask, 0, sizeof(ipv4_mask));
ipv4.hdr.time_to_live = 0xFF;
ipv4_mask.hdr.time_to_live = 0xFF;
item.type = RTE_FLOW_ITEM_TYPE_IPV4;
item.spec = &ipv4;
item.mask = &ipv4_mask;
field = modify_ipv4;
}
if (attr->ipv6) {
memset(&ipv6, 0, sizeof(ipv6));
memset(&ipv6_mask, 0, sizeof(ipv6_mask));
ipv6.hdr.hop_limits = 0xFF;
ipv6_mask.hdr.hop_limits = 0xFF;
item.type = RTE_FLOW_ITEM_TYPE_IPV6;
item.spec = &ipv6;
item.mask = &ipv6_mask;
field = modify_ipv6;
}
return flow_dv_convert_modify_action(&item, field, resource,
MLX5_MODIFICATION_TYPE_ADD, error);
}
/**
* Validate META item.
*
* @param[in] dev
* Pointer to the rte_eth_dev structure.
* @param[in] item
* Item specification.
* @param[in] attr
* Attributes of flow that includes this item.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
flow_dv_validate_item_meta(struct rte_eth_dev *dev,
const struct rte_flow_item *item,
const struct rte_flow_attr *attr,
struct rte_flow_error *error)
{
const struct rte_flow_item_meta *spec = item->spec;
const struct rte_flow_item_meta *mask = item->mask;
const struct rte_flow_item_meta nic_mask = {
.data = RTE_BE32(UINT32_MAX)
};
int ret;
uint64_t offloads = dev->data->dev_conf.txmode.offloads;
if (!(offloads & DEV_TX_OFFLOAD_MATCH_METADATA))
return rte_flow_error_set(error, EPERM,
RTE_FLOW_ERROR_TYPE_ITEM,
NULL,
"match on metadata offload "
"configuration is off for this port");
if (!spec)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM_SPEC,
item->spec,
"data cannot be empty");
if (!spec->data)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM_SPEC,
NULL,
"data cannot be zero");
if (!mask)
mask = &rte_flow_item_meta_mask;
ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
(const uint8_t *)&nic_mask,
sizeof(struct rte_flow_item_meta),
error);
if (ret < 0)
return ret;
if (attr->ingress)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
NULL,
"pattern not supported for ingress");
return 0;
}
/**
* Validate count action.
*
* @param[in] dev
* device otr.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
flow_dv_validate_action_count(struct rte_eth_dev *dev,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
if (!priv->config.devx)
goto notsup_err;
#ifdef HAVE_IBV_FLOW_DEVX_COUNTERS
return 0;
#endif
notsup_err:
return rte_flow_error_set
(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL,
"count action not supported");
}
/**
* Validate the L2 encap action.
*
* @param[in] action_flags
* Holds the actions detected until now.
* @param[in] action
* Pointer to the encap action.
* @param[in] attr
* 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.
*/
static int
flow_dv_validate_action_l2_encap(uint64_t action_flags,
const struct rte_flow_action *action,
const struct rte_flow_attr *attr,
struct rte_flow_error *error)
{
if (!(action->conf))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, action,
"configuration cannot be null");
if (action_flags & MLX5_FLOW_ACTION_DROP)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can't drop and encap in same flow");
if (action_flags & (MLX5_FLOW_ENCAP_ACTIONS | MLX5_FLOW_DECAP_ACTIONS))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can only have a single encap or"
" decap action in a flow");
if (attr->ingress)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
NULL,
"encap action not supported for "
"ingress");
return 0;
}
/**
* Validate the L2 decap action.
*
* @param[in] action_flags
* Holds the actions detected until now.
* @param[in] attr
* 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.
*/
static int
flow_dv_validate_action_l2_decap(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 decap in same flow");
if (action_flags & (MLX5_FLOW_ENCAP_ACTIONS | MLX5_FLOW_DECAP_ACTIONS))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can only have a single encap or"
" decap action in a flow");
if (action_flags & MLX5_FLOW_MODIFY_HDR_ACTIONS)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can't have decap action after"
" modify action");
if (attr->egress)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
NULL,
"decap action not supported for "
"egress");
return 0;
}
/**
* Validate the raw encap action.
*
* @param[in] action_flags
* Holds the actions detected until now.
* @param[in] action
* Pointer to the encap action.
* @param[in] attr
* 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.
*/
static int
flow_dv_validate_action_raw_encap(uint64_t action_flags,
const struct rte_flow_action *action,
const struct rte_flow_attr *attr,
struct rte_flow_error *error)
{
if (!(action->conf))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, action,
"configuration cannot be null");
if (action_flags & MLX5_FLOW_ACTION_DROP)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can't drop and encap in same flow");
if (action_flags & MLX5_FLOW_ENCAP_ACTIONS)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can only have a single encap"
" action in a flow");
/* encap without preceding decap is not supported for ingress */
if (attr->ingress && !(action_flags & MLX5_FLOW_ACTION_RAW_DECAP))
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
NULL,
"encap action not supported for "
"ingress");
return 0;
}
/**
* Validate the raw decap action.
*
* @param[in] action_flags
* Holds the actions detected until now.
* @param[in] action
* Pointer to the encap action.
* @param[in] attr
* 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.
*/
static int
flow_dv_validate_action_raw_decap(uint64_t action_flags,
const struct rte_flow_action *action,
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 decap in same flow");
if (action_flags & MLX5_FLOW_ENCAP_ACTIONS)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can't have encap action before"
" decap action");
if (action_flags & MLX5_FLOW_DECAP_ACTIONS)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can only have a single decap"
" action in a flow");
if (action_flags & MLX5_FLOW_MODIFY_HDR_ACTIONS)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can't have decap action after"
" modify action");
/* decap action is valid on egress only if it is followed by encap */
if (attr->egress) {
for (; action->type != RTE_FLOW_ACTION_TYPE_END &&
action->type != RTE_FLOW_ACTION_TYPE_RAW_ENCAP;
action++) {
}
if (action->type != RTE_FLOW_ACTION_TYPE_RAW_ENCAP)
return rte_flow_error_set
(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
NULL, "decap action not supported"
" for egress");
}
return 0;
}
/**
* Find existing encap/decap resource or create and register a new one.
*
* @param dev[in, out]
* Pointer to rte_eth_dev structure.
* @param[in, out] resource
* Pointer to encap/decap resource.
* @parm[in, out] dev_flow
* Pointer to the dev_flow.
* @param[out] error
* pointer to error structure.
*
* @return
* 0 on success otherwise -errno and errno is set.
*/
static int
flow_dv_encap_decap_resource_register
(struct rte_eth_dev *dev,
struct mlx5_flow_dv_encap_decap_resource *resource,
struct mlx5_flow *dev_flow,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_ibv_shared *sh = priv->sh;
struct mlx5_flow_dv_encap_decap_resource *cache_resource;
struct rte_flow *flow = dev_flow->flow;
struct mlx5dv_dr_ns *ns;
resource->flags = flow->group ? 0 : 1;
if (flow->ingress)
ns = sh->rx_ns;
else
ns = sh->tx_ns;
/* Lookup a matching resource from cache. */
LIST_FOREACH(cache_resource, &sh->encaps_decaps, next) {
if (resource->reformat_type == cache_resource->reformat_type &&
resource->ft_type == cache_resource->ft_type &&
resource->flags == cache_resource->flags &&
resource->size == cache_resource->size &&
!memcmp((const void *)resource->buf,
(const void *)cache_resource->buf,
resource->size)) {
DRV_LOG(DEBUG, "encap/decap resource %p: refcnt %d++",
(void *)cache_resource,
rte_atomic32_read(&cache_resource->refcnt));
rte_atomic32_inc(&cache_resource->refcnt);
dev_flow->dv.encap_decap = cache_resource;
return 0;
}
}
/* Register new encap/decap resource. */
cache_resource = rte_calloc(__func__, 1, sizeof(*cache_resource), 0);
if (!cache_resource)
return rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
"cannot allocate resource memory");
*cache_resource = *resource;
cache_resource->verbs_action =
mlx5_glue->dv_create_flow_action_packet_reformat
(sh->ctx, cache_resource->reformat_type,
cache_resource->ft_type, ns, cache_resource->flags,
cache_resource->size,
(cache_resource->size ? cache_resource->buf : NULL));
if (!cache_resource->verbs_action) {
rte_free(cache_resource);
return rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL, "cannot create action");
}
rte_atomic32_init(&cache_resource->refcnt);
rte_atomic32_inc(&cache_resource->refcnt);
LIST_INSERT_HEAD(&sh->encaps_decaps, cache_resource, next);
dev_flow->dv.encap_decap = cache_resource;
DRV_LOG(DEBUG, "new encap/decap resource %p: refcnt %d++",
(void *)cache_resource,
rte_atomic32_read(&cache_resource->refcnt));
return 0;
}
/**
* Find existing table jump resource or create and register a new one.
*
* @param dev[in, out]
* Pointer to rte_eth_dev structure.
* @param[in, out] resource
* Pointer to jump table resource.
* @parm[in, out] dev_flow
* Pointer to the dev_flow.
* @param[out] error
* pointer to error structure.
*
* @return
* 0 on success otherwise -errno and errno is set.
*/
static int
flow_dv_jump_tbl_resource_register
(struct rte_eth_dev *dev,
struct mlx5_flow_dv_jump_tbl_resource *resource,
struct mlx5_flow *dev_flow,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_ibv_shared *sh = priv->sh;
struct mlx5_flow_dv_jump_tbl_resource *cache_resource;
/* Lookup a matching resource from cache. */
LIST_FOREACH(cache_resource, &sh->jump_tbl, next) {
if (resource->tbl == cache_resource->tbl) {
DRV_LOG(DEBUG, "jump table resource resource %p: refcnt %d++",
(void *)cache_resource,
rte_atomic32_read(&cache_resource->refcnt));
rte_atomic32_inc(&cache_resource->refcnt);
dev_flow->dv.jump = cache_resource;
return 0;
}
}
/* Register new jump table resource. */
cache_resource = rte_calloc(__func__, 1, sizeof(*cache_resource), 0);
if (!cache_resource)
return rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
"cannot allocate resource memory");
*cache_resource = *resource;
cache_resource->action =
mlx5_glue->dr_create_flow_action_dest_flow_tbl
(resource->tbl->obj);
if (!cache_resource->action) {
rte_free(cache_resource);
return rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL, "cannot create action");
}
rte_atomic32_init(&cache_resource->refcnt);
rte_atomic32_inc(&cache_resource->refcnt);
LIST_INSERT_HEAD(&sh->jump_tbl, cache_resource, next);
dev_flow->dv.jump = cache_resource;
DRV_LOG(DEBUG, "new jump table resource %p: refcnt %d++",
(void *)cache_resource,
rte_atomic32_read(&cache_resource->refcnt));
return 0;
}
/**
* Get the size of specific rte_flow_item_type
*
* @param[in] item_type
* Tested rte_flow_item_type.
*
* @return
* sizeof struct item_type, 0 if void or irrelevant.
*/
static size_t
flow_dv_get_item_len(const enum rte_flow_item_type item_type)
{
size_t retval;
switch (item_type) {
case RTE_FLOW_ITEM_TYPE_ETH:
retval = sizeof(struct rte_flow_item_eth);
break;
case RTE_FLOW_ITEM_TYPE_VLAN:
retval = sizeof(struct rte_flow_item_vlan);
break;
case RTE_FLOW_ITEM_TYPE_IPV4:
retval = sizeof(struct rte_flow_item_ipv4);
break;
case RTE_FLOW_ITEM_TYPE_IPV6:
retval = sizeof(struct rte_flow_item_ipv6);
break;
case RTE_FLOW_ITEM_TYPE_UDP:
retval = sizeof(struct rte_flow_item_udp);
break;
case RTE_FLOW_ITEM_TYPE_TCP:
retval = sizeof(struct rte_flow_item_tcp);
break;
case RTE_FLOW_ITEM_TYPE_VXLAN:
retval = sizeof(struct rte_flow_item_vxlan);
break;
case RTE_FLOW_ITEM_TYPE_GRE:
retval = sizeof(struct rte_flow_item_gre);
break;
case RTE_FLOW_ITEM_TYPE_NVGRE:
retval = sizeof(struct rte_flow_item_nvgre);
break;
case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
retval = sizeof(struct rte_flow_item_vxlan_gpe);
break;
case RTE_FLOW_ITEM_TYPE_MPLS:
retval = sizeof(struct rte_flow_item_mpls);
break;
case RTE_FLOW_ITEM_TYPE_VOID: /* Fall through. */
default:
retval = 0;
break;
}
return retval;
}
#define MLX5_ENCAP_IPV4_VERSION 0x40
#define MLX5_ENCAP_IPV4_IHL_MIN 0x05
#define MLX5_ENCAP_IPV4_TTL_DEF 0x40
#define MLX5_ENCAP_IPV6_VTC_FLOW 0x60000000
#define MLX5_ENCAP_IPV6_HOP_LIMIT 0xff
#define MLX5_ENCAP_VXLAN_FLAGS 0x08000000
#define MLX5_ENCAP_VXLAN_GPE_FLAGS 0x04
/**
* Convert the encap action data from list of rte_flow_item to raw buffer
*
* @param[in] items
* Pointer to rte_flow_item objects list.
* @param[out] buf
* Pointer to the output buffer.
* @param[out] size
* Pointer to the output buffer size.
* @param[out] error
* Pointer to the error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
flow_dv_convert_encap_data(const struct rte_flow_item *items, uint8_t *buf,
size_t *size, struct rte_flow_error *error)
{
struct ether_hdr *eth = NULL;
struct vlan_hdr *vlan = NULL;
struct ipv4_hdr *ipv4 = NULL;
struct ipv6_hdr *ipv6 = NULL;
struct udp_hdr *udp = NULL;
struct vxlan_hdr *vxlan = NULL;
struct vxlan_gpe_hdr *vxlan_gpe = NULL;
struct gre_hdr *gre = NULL;
size_t len;
size_t temp_size = 0;
if (!items)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
NULL, "invalid empty data");
for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) {
len = flow_dv_get_item_len(items->type);
if (len + temp_size > MLX5_ENCAP_MAX_LEN)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
(void *)items->type,
"items total size is too big"
" for encap action");
rte_memcpy((void *)&buf[temp_size], items->spec, len);
switch (items->type) {
case RTE_FLOW_ITEM_TYPE_ETH:
eth = (struct ether_hdr *)&buf[temp_size];
break;
case RTE_FLOW_ITEM_TYPE_VLAN:
vlan = (struct vlan_hdr *)&buf[temp_size];
if (!eth)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
(void *)items->type,
"eth header not found");
if (!eth->ether_type)
eth->ether_type = RTE_BE16(ETHER_TYPE_VLAN);
break;
case RTE_FLOW_ITEM_TYPE_IPV4:
ipv4 = (struct ipv4_hdr *)&buf[temp_size];
if (!vlan && !eth)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
(void *)items->type,
"neither eth nor vlan"
" header found");
if (vlan && !vlan->eth_proto)
vlan->eth_proto = RTE_BE16(ETHER_TYPE_IPv4);
else if (eth && !eth->ether_type)
eth->ether_type = RTE_BE16(ETHER_TYPE_IPv4);
if (!ipv4->version_ihl)
ipv4->version_ihl = MLX5_ENCAP_IPV4_VERSION |
MLX5_ENCAP_IPV4_IHL_MIN;
if (!ipv4->time_to_live)
ipv4->time_to_live = MLX5_ENCAP_IPV4_TTL_DEF;
break;
case RTE_FLOW_ITEM_TYPE_IPV6:
ipv6 = (struct ipv6_hdr *)&buf[temp_size];
if (!vlan && !eth)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
(void *)items->type,
"neither eth nor vlan"
" header found");
if (vlan && !vlan->eth_proto)
vlan->eth_proto = RTE_BE16(ETHER_TYPE_IPv6);
else if (eth && !eth->ether_type)
eth->ether_type = RTE_BE16(ETHER_TYPE_IPv6);
if (!ipv6->vtc_flow)
ipv6->vtc_flow =
RTE_BE32(MLX5_ENCAP_IPV6_VTC_FLOW);
if (!ipv6->hop_limits)
ipv6->hop_limits = MLX5_ENCAP_IPV6_HOP_LIMIT;
break;
case RTE_FLOW_ITEM_TYPE_UDP:
udp = (struct udp_hdr *)&buf[temp_size];
if (!ipv4 && !ipv6)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
(void *)items->type,
"ip header not found");
if (ipv4 && !ipv4->next_proto_id)
ipv4->next_proto_id = IPPROTO_UDP;
else if (ipv6 && !ipv6->proto)
ipv6->proto = IPPROTO_UDP;
break;
case RTE_FLOW_ITEM_TYPE_VXLAN:
vxlan = (struct vxlan_hdr *)&buf[temp_size];
if (!udp)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
(void *)items->type,
"udp header not found");
if (!udp->dst_port)
udp->dst_port = RTE_BE16(MLX5_UDP_PORT_VXLAN);
if (!vxlan->vx_flags)
vxlan->vx_flags =
RTE_BE32(MLX5_ENCAP_VXLAN_FLAGS);
break;
case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
vxlan_gpe = (struct vxlan_gpe_hdr *)&buf[temp_size];
if (!udp)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
(void *)items->type,
"udp header not found");
if (!vxlan_gpe->proto)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
(void *)items->type,
"next protocol not found");
if (!udp->dst_port)
udp->dst_port =
RTE_BE16(MLX5_UDP_PORT_VXLAN_GPE);
if (!vxlan_gpe->vx_flags)
vxlan_gpe->vx_flags =
MLX5_ENCAP_VXLAN_GPE_FLAGS;
break;
case RTE_FLOW_ITEM_TYPE_GRE:
case RTE_FLOW_ITEM_TYPE_NVGRE:
gre = (struct gre_hdr *)&buf[temp_size];
if (!gre->proto)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
(void *)items->type,
"next protocol not found");
if (!ipv4 && !ipv6)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
(void *)items->type,
"ip header not found");
if (ipv4 && !ipv4->next_proto_id)
ipv4->next_proto_id = IPPROTO_GRE;
else if (ipv6 && !ipv6->proto)
ipv6->proto = IPPROTO_GRE;
break;
case RTE_FLOW_ITEM_TYPE_VOID:
break;
default:
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
(void *)items->type,
"unsupported item type");
break;
}
temp_size += len;
}
*size = temp_size;
return 0;
}
/**
* Convert L2 encap action to DV specification.
*
* @param[in] dev
* Pointer to rte_eth_dev structure.
* @param[in] action
* Pointer to action structure.
* @param[in, out] dev_flow
* Pointer to the mlx5_flow.
* @param[out] error
* Pointer to the error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
flow_dv_create_action_l2_encap(struct rte_eth_dev *dev,
const struct rte_flow_action *action,
struct mlx5_flow *dev_flow,
struct rte_flow_error *error)
{
const struct rte_flow_item *encap_data;
const struct rte_flow_action_raw_encap *raw_encap_data;
struct mlx5_flow_dv_encap_decap_resource res = {
.reformat_type =
MLX5DV_FLOW_ACTION_PACKET_REFORMAT_TYPE_L2_TO_L2_TUNNEL,
.ft_type = MLX5DV_FLOW_TABLE_TYPE_NIC_TX,
};
if (action->type == RTE_FLOW_ACTION_TYPE_RAW_ENCAP) {
raw_encap_data =
(const struct rte_flow_action_raw_encap *)action->conf;
res.size = raw_encap_data->size;
memcpy(res.buf, raw_encap_data->data, res.size);
} else {
if (action->type == RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP)
encap_data =
((const struct rte_flow_action_vxlan_encap *)
action->conf)->definition;
else
encap_data =
((const struct rte_flow_action_nvgre_encap *)
action->conf)->definition;
if (flow_dv_convert_encap_data(encap_data, res.buf,
&res.size, error))
return -rte_errno;
}
if (flow_dv_encap_decap_resource_register(dev, &res, dev_flow, error))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
NULL, "can't create L2 encap action");
return 0;
}
/**
* Convert L2 decap action to DV specification.
*
* @param[in] dev
* Pointer to rte_eth_dev structure.
* @param[in, out] dev_flow
* Pointer to the mlx5_flow.
* @param[out] error
* Pointer to the error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
flow_dv_create_action_l2_decap(struct rte_eth_dev *dev,
struct mlx5_flow *dev_flow,
struct rte_flow_error *error)
{
struct mlx5_flow_dv_encap_decap_resource res = {
.size = 0,
.reformat_type =
MLX5DV_FLOW_ACTION_PACKET_REFORMAT_TYPE_L2_TUNNEL_TO_L2,
.ft_type = MLX5DV_FLOW_TABLE_TYPE_NIC_RX,
};
if (flow_dv_encap_decap_resource_register(dev, &res, dev_flow, error))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
NULL, "can't create L2 decap action");
return 0;
}
/**
* Convert raw decap/encap (L3 tunnel) action to DV specification.
*
* @param[in] dev
* Pointer to rte_eth_dev structure.
* @param[in] action
* Pointer to action structure.
* @param[in, out] dev_flow
* Pointer to the mlx5_flow.
* @param[in] attr
* Pointer to the flow attributes.
* @param[out] error
* Pointer to the error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
flow_dv_create_action_raw_encap(struct rte_eth_dev *dev,
const struct rte_flow_action *action,
struct mlx5_flow *dev_flow,
const struct rte_flow_attr *attr,
struct rte_flow_error *error)
{
const struct rte_flow_action_raw_encap *encap_data;
struct mlx5_flow_dv_encap_decap_resource res;
encap_data = (const struct rte_flow_action_raw_encap *)action->conf;
res.size = encap_data->size;
memcpy(res.buf, encap_data->data, res.size);
res.reformat_type = attr->egress ?
MLX5DV_FLOW_ACTION_PACKET_REFORMAT_TYPE_L2_TO_L3_TUNNEL :
MLX5DV_FLOW_ACTION_PACKET_REFORMAT_TYPE_L3_TUNNEL_TO_L2;
res.ft_type = attr->egress ? MLX5DV_FLOW_TABLE_TYPE_NIC_TX :
MLX5DV_FLOW_TABLE_TYPE_NIC_RX;
if (flow_dv_encap_decap_resource_register(dev, &res, dev_flow, error))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
NULL, "can't create encap action");
return 0;
}
/**
* Validate the modify-header actions.
*
* @param[in] action_flags
* Holds the actions detected until now.
* @param[in] action
* Pointer to the modify action.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
flow_dv_validate_action_modify_hdr(const uint64_t action_flags,
const struct rte_flow_action *action,
struct rte_flow_error *error)
{
if (action->type != RTE_FLOW_ACTION_TYPE_DEC_TTL && !action->conf)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
NULL, "action configuration not set");
if (action_flags & MLX5_FLOW_ENCAP_ACTIONS)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"can't have encap action before"
" modify action");
return 0;
}
/**
* Validate the modify-header MAC address actions.
*
* @param[in] action_flags
* Holds the actions detected until now.
* @param[in] action
* Pointer to the modify action.
* @param[in] item_flags
* Holds the items detected.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
flow_dv_validate_action_modify_mac(const uint64_t action_flags,
const struct rte_flow_action *action,
const uint64_t item_flags,
struct rte_flow_error *error)
{
int ret = 0;
ret = flow_dv_validate_action_modify_hdr(action_flags, action, error);
if (!ret) {
if (!(item_flags & MLX5_FLOW_LAYER_L2))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
NULL,
"no L2 item in pattern");
}
return ret;
}
/**
* Validate the modify-header IPv4 address actions.
*
* @param[in] action_flags
* Holds the actions detected until now.
* @param[in] action
* Pointer to the modify action.
* @param[in] item_flags
* Holds the items detected.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
flow_dv_validate_action_modify_ipv4(const uint64_t action_flags,
const struct rte_flow_action *action,
const uint64_t item_flags,
struct rte_flow_error *error)
{
int ret = 0;
ret = flow_dv_validate_action_modify_hdr(action_flags, action, error);
if (!ret) {
if (!(item_flags & MLX5_FLOW_LAYER_L3_IPV4))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
NULL,
"no ipv4 item in pattern");
}
return ret;
}
/**
* Validate the modify-header IPv6 address actions.
*
* @param[in] action_flags
* Holds the actions detected until now.
* @param[in] action
* Pointer to the modify action.
* @param[in] item_flags
* Holds the items detected.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
flow_dv_validate_action_modify_ipv6(const uint64_t action_flags,
const struct rte_flow_action *action,
const uint64_t item_flags,
struct rte_flow_error *error)
{
int ret = 0;
ret = flow_dv_validate_action_modify_hdr(action_flags, action, error);
if (!ret) {
if (!(item_flags & MLX5_FLOW_LAYER_L3_IPV6))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
NULL,
"no ipv6 item in pattern");
}
return ret;
}
/**
* Validate the modify-header TP actions.
*
* @param[in] action_flags
* Holds the actions detected until now.
* @param[in] action
* Pointer to the modify action.
* @param[in] item_flags
* Holds the items detected.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
flow_dv_validate_action_modify_tp(const uint64_t action_flags,
const struct rte_flow_action *action,
const uint64_t item_flags,
struct rte_flow_error *error)
{
int ret = 0;
ret = flow_dv_validate_action_modify_hdr(action_flags, action, error);
if (!ret) {
if (!(item_flags & MLX5_FLOW_LAYER_L4))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
NULL, "no transport layer "
"in pattern");
}
return ret;
}
/**
* Validate the modify-header TTL actions.
*
* @param[in] action_flags
* Holds the actions detected until now.
* @param[in] action
* Pointer to the modify action.
* @param[in] item_flags
* Holds the items detected.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
flow_dv_validate_action_modify_ttl(const uint64_t action_flags,
const struct rte_flow_action *action,
const uint64_t item_flags,
struct rte_flow_error *error)
{
int ret = 0;
ret = flow_dv_validate_action_modify_hdr(action_flags, action, error);
if (!ret) {
if (!(item_flags & MLX5_FLOW_LAYER_L3))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
NULL,
"no IP protocol in pattern");
}
return ret;
}
/**
* Validate jump action.
*
* @param[in] action
* Pointer to the modify action.
* @param[in] group
* The group of the current flow.
* @param[out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
flow_dv_validate_action_jump(const struct rte_flow_action *action,
uint32_t group,
struct rte_flow_error *error)
{
if (action->type != RTE_FLOW_ACTION_TYPE_JUMP && !action->conf)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
NULL, "action configuration not set");
if (group >= ((const struct rte_flow_action_jump *)action->conf)->group)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"target group must be higher then"
" the current flow group");
return 0;
}
/**
* Find existing modify-header resource or create and register a new one.
*
* @param dev[in, out]
* Pointer to rte_eth_dev structure.
* @param[in, out] resource
* Pointer to modify-header resource.
* @parm[in, out] dev_flow
* Pointer to the dev_flow.
* @param[out] error
* pointer to error structure.
*
* @return
* 0 on success otherwise -errno and errno is set.
*/
static int
flow_dv_modify_hdr_resource_register
(struct rte_eth_dev *dev,
struct mlx5_flow_dv_modify_hdr_resource *resource,
struct mlx5_flow *dev_flow,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_ibv_shared *sh = priv->sh;
struct mlx5_flow_dv_modify_hdr_resource *cache_resource;
struct mlx5dv_dr_ns *ns =
resource->ft_type == MLX5DV_FLOW_TABLE_TYPE_NIC_TX ?
sh->tx_ns : sh->rx_ns;
/* Lookup a matching resource from cache. */
LIST_FOREACH(cache_resource, &sh->modify_cmds, next) {
if (resource->ft_type == cache_resource->ft_type &&
resource->actions_num == cache_resource->actions_num &&
!memcmp((const void *)resource->actions,
(const void *)cache_resource->actions,
(resource->actions_num *
sizeof(resource->actions[0])))) {
DRV_LOG(DEBUG, "modify-header resource %p: refcnt %d++",
(void *)cache_resource,
rte_atomic32_read(&cache_resource->refcnt));
rte_atomic32_inc(&cache_resource->refcnt);
dev_flow->dv.modify_hdr = cache_resource;
return 0;
}
}
/* Register new modify-header resource. */
cache_resource = rte_calloc(__func__, 1, sizeof(*cache_resource), 0);
if (!cache_resource)
return rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
"cannot allocate resource memory");
*cache_resource = *resource;
cache_resource->verbs_action =
mlx5_glue->dv_create_flow_action_modify_header
(sh->ctx, cache_resource->ft_type,
ns, 0,
cache_resource->actions_num *
sizeof(cache_resource->actions[0]),
(uint64_t *)cache_resource->actions);
if (!cache_resource->verbs_action) {
rte_free(cache_resource);
return rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL, "cannot create action");
}
rte_atomic32_init(&cache_resource->refcnt);
rte_atomic32_inc(&cache_resource->refcnt);
LIST_INSERT_HEAD(&sh->modify_cmds, cache_resource, next);
dev_flow->dv.modify_hdr = cache_resource;
DRV_LOG(DEBUG, "new modify-header resource %p: refcnt %d++",
(void *)cache_resource,
rte_atomic32_read(&cache_resource->refcnt));
return 0;
}
/**
* Get or create a flow counter.
*
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in] shared
* Indicate if this counter is shared with other flows.
* @param[in] id
* Counter identifier.
*
* @return
* pointer to flow counter on success, NULL otherwise and rte_errno is set.
*/
static struct mlx5_flow_counter *
flow_dv_counter_new(struct rte_eth_dev *dev, uint32_t shared, uint32_t id)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_flow_counter *cnt = NULL;
struct mlx5_devx_counter_set *dcs = NULL;
int ret;
if (!priv->config.devx) {
ret = -ENOTSUP;
goto error_exit;
}
if (shared) {
LIST_FOREACH(cnt, &priv->flow_counters, next) {
if (cnt->shared && cnt->id == id) {
cnt->ref_cnt++;
return cnt;
}
}
}
cnt = rte_calloc(__func__, 1, sizeof(*cnt), 0);
dcs = rte_calloc(__func__, 1, sizeof(*dcs), 0);
if (!dcs || !cnt) {
ret = -ENOMEM;
goto error_exit;
}
ret = mlx5_devx_cmd_flow_counter_alloc(priv->sh->ctx, dcs);
if (ret)
goto error_exit;
struct mlx5_flow_counter tmpl = {
.shared = shared,
.ref_cnt = 1,
.id = id,
.dcs = dcs,
};
tmpl.action = mlx5_glue->dv_create_flow_action_counter(dcs->obj, 0);
if (!tmpl.action) {
ret = errno;
goto error_exit;
}
*cnt = tmpl;
LIST_INSERT_HEAD(&priv->flow_counters, cnt, next);
return cnt;
error_exit:
rte_free(cnt);
rte_free(dcs);
rte_errno = -ret;
return NULL;
}
/**
* Release a flow counter.
*
* @param[in] counter
* Pointer to the counter handler.
*/
static void
flow_dv_counter_release(struct mlx5_flow_counter *counter)
{
int ret;
if (!counter)
return;
if (--counter->ref_cnt == 0) {
ret = mlx5_devx_cmd_flow_counter_free(counter->dcs->obj);
if (ret)
DRV_LOG(ERR, "Failed to free devx counters, %d", ret);
LIST_REMOVE(counter, next);
rte_free(counter->dcs);
rte_free(counter);
}
}
/**
* 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 dev struct.
* @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.
*/
static int
flow_dv_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;
#ifndef HAVE_MLX5DV_DR
if (attributes->group)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
NULL,
"groups is not supported");
#endif
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->transfer)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
NULL,
"transfer is not supported");
if (!(attributes->egress ^ attributes->ingress))
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR, NULL,
"must specify exactly one of "
"ingress or egress");
return 0;
}
/**
* Internal validation function. For validating both actions and items.
*
* @param[in] dev
* Pointer to the rte_eth_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 int
flow_dv_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;
uint64_t action_flags = 0;
uint64_t item_flags = 0;
uint64_t last_item = 0;
int tunnel = 0;
uint8_t next_protocol = 0xff;
int actions_n = 0;
if (items == NULL)
return -1;
ret = flow_dv_validate_attributes(dev, attr, error);
if (ret < 0)
return ret;
for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) {
tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
switch (items->type) {
case RTE_FLOW_ITEM_TYPE_VOID:
break;
case RTE_FLOW_ITEM_TYPE_ETH:
ret = mlx5_flow_validate_item_eth(items, item_flags,
error);
if (ret < 0)
return ret;
last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L2 :
MLX5_FLOW_LAYER_OUTER_L2;
break;
case RTE_FLOW_ITEM_TYPE_VLAN:
ret = mlx5_flow_validate_item_vlan(items, item_flags,
error);
if (ret < 0)
return ret;
last_item = tunnel ? MLX5_FLOW_LAYER_INNER_VLAN :
MLX5_FLOW_LAYER_OUTER_VLAN;
break;
case RTE_FLOW_ITEM_TYPE_IPV4:
ret = mlx5_flow_validate_item_ipv4(items, item_flags,
NULL, error);
if (ret < 0)
return ret;
last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV4 :
MLX5_FLOW_LAYER_OUTER_L3_IPV4;
if (items->mask != NULL &&
((const struct rte_flow_item_ipv4 *)
items->mask)->hdr.next_proto_id) {
next_protocol =
((const struct rte_flow_item_ipv4 *)
(items->spec))->hdr.next_proto_id;
next_protocol &=
((const struct rte_flow_item_ipv4 *)
(items->mask))->hdr.next_proto_id;
} else {
/* Reset for inner layer. */
next_protocol = 0xff;
}
break;
case RTE_FLOW_ITEM_TYPE_IPV6:
ret = mlx5_flow_validate_item_ipv6(items, item_flags,
NULL, error);
if (ret < 0)
return ret;
last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV6 :
MLX5_FLOW_LAYER_OUTER_L3_IPV6;
if (items->mask != NULL &&
((const struct rte_flow_item_ipv6 *)
items->mask)->hdr.proto) {
next_protocol =
((const struct rte_flow_item_ipv6 *)
items->spec)->hdr.proto;
next_protocol &=
((const struct rte_flow_item_ipv6 *)
items->mask)->hdr.proto;
} else {
/* Reset for inner layer. */
next_protocol = 0xff;
}
break;
case RTE_FLOW_ITEM_TYPE_TCP:
ret = mlx5_flow_validate_item_tcp
(items, item_flags,
next_protocol,
&rte_flow_item_tcp_mask,
error);
if (ret < 0)
return ret;
last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L4_TCP :
MLX5_FLOW_LAYER_OUTER_L4_TCP;
break;
case RTE_FLOW_ITEM_TYPE_UDP:
ret = mlx5_flow_validate_item_udp(items, item_flags,
next_protocol,
error);
if (ret < 0)
return ret;
last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L4_UDP :
MLX5_FLOW_LAYER_OUTER_L4_UDP;
break;
case RTE_FLOW_ITEM_TYPE_GRE:
case RTE_FLOW_ITEM_TYPE_NVGRE:
ret = mlx5_flow_validate_item_gre(items, item_flags,
next_protocol, error);
if (ret < 0)
return ret;
last_item = MLX5_FLOW_LAYER_GRE;
break;
case RTE_FLOW_ITEM_TYPE_VXLAN:
ret = mlx5_flow_validate_item_vxlan(items, item_flags,
error);
if (ret < 0)
return ret;
last_item = MLX5_FLOW_LAYER_VXLAN;
break;
case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
ret = mlx5_flow_validate_item_vxlan_gpe(items,
item_flags, dev,
error);
if (ret < 0)
return ret;
last_item = MLX5_FLOW_LAYER_VXLAN_GPE;
break;
case RTE_FLOW_ITEM_TYPE_MPLS:
ret = mlx5_flow_validate_item_mpls(dev, items,
item_flags,
last_item, error);
if (ret < 0)
return ret;
last_item = MLX5_FLOW_LAYER_MPLS;
break;
case RTE_FLOW_ITEM_TYPE_META:
ret = flow_dv_validate_item_meta(dev, items, attr,
error);
if (ret < 0)
return ret;
last_item = MLX5_FLOW_ITEM_METADATA;
break;
default:
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM,
NULL, "item not supported");
}
item_flags |= last_item;
}
for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
if (actions_n == MLX5_DV_MAX_NUMBER_OF_ACTIONS)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION,
actions, "too many actions");
switch (actions->type) {
case RTE_FLOW_ACTION_TYPE_VOID:
break;
case RTE_FLOW_ACTION_TYPE_FLAG:
ret = mlx5_flow_validate_action_flag(action_flags,
attr, error);
if (ret < 0)
return ret;
action_flags |= MLX5_FLOW_ACTION_FLAG;
++actions_n;
break;
case RTE_FLOW_ACTION_TYPE_MARK:
ret = mlx5_flow_validate_action_mark(actions,
action_flags,
attr, error);
if (ret < 0)
return ret;
action_flags |= MLX5_FLOW_ACTION_MARK;
++actions_n;
break;
case RTE_FLOW_ACTION_TYPE_DROP:
ret = mlx5_flow_validate_action_drop(action_flags,
attr, error);
if (ret < 0)
return ret;
action_flags |= MLX5_FLOW_ACTION_DROP;
++actions_n;
break;
case RTE_FLOW_ACTION_TYPE_QUEUE:
ret = mlx5_flow_validate_action_queue(actions,
action_flags, dev,
attr, error);
if (ret < 0)
return ret;
action_flags |= MLX5_FLOW_ACTION_QUEUE;
++actions_n;
break;
case RTE_FLOW_ACTION_TYPE_RSS:
ret = mlx5_flow_validate_action_rss(actions,
action_flags, dev,
attr, error);
if (ret < 0)
return ret;
action_flags |= MLX5_FLOW_ACTION_RSS;
++actions_n;
break;
case RTE_FLOW_ACTION_TYPE_COUNT:
ret = flow_dv_validate_action_count(dev, error);
if (ret < 0)
return ret;
action_flags |= MLX5_FLOW_ACTION_COUNT;
++actions_n;
break;
case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
ret = flow_dv_validate_action_l2_encap(action_flags,
actions, attr,
error);
if (ret < 0)
return ret;
action_flags |= actions->type ==
RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP ?
MLX5_FLOW_ACTION_VXLAN_ENCAP :
MLX5_FLOW_ACTION_NVGRE_ENCAP;
++actions_n;
break;
case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP:
case RTE_FLOW_ACTION_TYPE_NVGRE_DECAP:
ret = flow_dv_validate_action_l2_decap(action_flags,
attr, error);
if (ret < 0)
return ret;
action_flags |= actions->type ==
RTE_FLOW_ACTION_TYPE_VXLAN_DECAP ?
MLX5_FLOW_ACTION_VXLAN_DECAP :
MLX5_FLOW_ACTION_NVGRE_DECAP;
++actions_n;
break;
case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
ret = flow_dv_validate_action_raw_encap(action_flags,
actions, attr,
error);
if (ret < 0)
return ret;
action_flags |= MLX5_FLOW_ACTION_RAW_ENCAP;
++actions_n;
break;
case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
ret = flow_dv_validate_action_raw_decap(action_flags,
actions, attr,
error);
if (ret < 0)
return ret;
action_flags |= MLX5_FLOW_ACTION_RAW_DECAP;
++actions_n;
break;
case RTE_FLOW_ACTION_TYPE_SET_MAC_SRC:
case RTE_FLOW_ACTION_TYPE_SET_MAC_DST:
ret = flow_dv_validate_action_modify_mac(action_flags,
actions,
item_flags,
error);
if (ret < 0)
return ret;
/* Count all modify-header actions as one action. */
if (!(action_flags & MLX5_FLOW_MODIFY_HDR_ACTIONS))
++actions_n;
action_flags |= actions->type ==
RTE_FLOW_ACTION_TYPE_SET_MAC_SRC ?
MLX5_FLOW_ACTION_SET_MAC_SRC :
MLX5_FLOW_ACTION_SET_MAC_DST;
break;
case RTE_FLOW_ACTION_TYPE_SET_IPV4_SRC:
case RTE_FLOW_ACTION_TYPE_SET_IPV4_DST:
ret = flow_dv_validate_action_modify_ipv4(action_flags,
actions,
item_flags,
error);
if (ret < 0)
return ret;
/* Count all modify-header actions as one action. */
if (!(action_flags & MLX5_FLOW_MODIFY_HDR_ACTIONS))
++actions_n;
action_flags |= actions->type ==
RTE_FLOW_ACTION_TYPE_SET_IPV4_SRC ?
MLX5_FLOW_ACTION_SET_IPV4_SRC :
MLX5_FLOW_ACTION_SET_IPV4_DST;
break;
case RTE_FLOW_ACTION_TYPE_SET_IPV6_SRC:
case RTE_FLOW_ACTION_TYPE_SET_IPV6_DST:
ret = flow_dv_validate_action_modify_ipv6(action_flags,
actions,
item_flags,
error);
if (ret < 0)
return ret;
/* Count all modify-header actions as one action. */
if (!(action_flags & MLX5_FLOW_MODIFY_HDR_ACTIONS))
++actions_n;
action_flags |= actions->type ==
RTE_FLOW_ACTION_TYPE_SET_IPV6_SRC ?
MLX5_FLOW_ACTION_SET_IPV6_SRC :
MLX5_FLOW_ACTION_SET_IPV6_DST;
break;
case RTE_FLOW_ACTION_TYPE_SET_TP_SRC:
case RTE_FLOW_ACTION_TYPE_SET_TP_DST:
ret = flow_dv_validate_action_modify_tp(action_flags,
actions,
item_flags,
error);
if (ret < 0)
return ret;
/* Count all modify-header actions as one action. */
if (!(action_flags & MLX5_FLOW_MODIFY_HDR_ACTIONS))
++actions_n;
action_flags |= actions->type ==
RTE_FLOW_ACTION_TYPE_SET_TP_SRC ?
MLX5_FLOW_ACTION_SET_TP_SRC :
MLX5_FLOW_ACTION_SET_TP_DST;
break;
case RTE_FLOW_ACTION_TYPE_DEC_TTL:
case RTE_FLOW_ACTION_TYPE_SET_TTL:
ret = flow_dv_validate_action_modify_ttl(action_flags,
actions,
item_flags,
error);
if (ret < 0)
return ret;
/* Count all modify-header actions as one action. */
if (!(action_flags & MLX5_FLOW_MODIFY_HDR_ACTIONS))
++actions_n;
action_flags |= actions->type ==
RTE_FLOW_ACTION_TYPE_SET_TTL ?
MLX5_FLOW_ACTION_SET_TTL :
MLX5_FLOW_ACTION_DEC_TTL;
break;
case RTE_FLOW_ACTION_TYPE_JUMP:
ret = flow_dv_validate_action_jump(actions,
attr->group, error);
if (ret)
return ret;
++actions_n;
action_flags |= MLX5_FLOW_ACTION_JUMP;
break;
default:
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION,
actions,
"action not supported");
}
}
if (!(action_flags & MLX5_FLOW_FATE_ACTIONS) && attr->ingress)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, actions,
"no fate action is found");
return 0;
}
/**
* Internal preparation function. Allocates the DV flow size,
* this size is constant.
*
* @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 mlx5_flow object on success,
* otherwise NULL and rte_errno is set.
*/
static struct mlx5_flow *
flow_dv_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)
{
uint32_t size = sizeof(struct mlx5_flow);
struct mlx5_flow *flow;
flow = rte_calloc(__func__, 1, size, 0);
if (!flow) {
rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
"not enough memory to create flow");
return NULL;
}
flow->dv.value.size = MLX5_ST_SZ_DB(fte_match_param);
return flow;
}
#ifndef NDEBUG
/**
* Sanity check for match mask and value. Similar to check_valid_spec() in
* kernel driver. If unmasked bit is present in value, it returns failure.
*
* @param match_mask
* pointer to match mask buffer.
* @param match_value
* pointer to match value buffer.
*
* @return
* 0 if valid, -EINVAL otherwise.
*/
static int
flow_dv_check_valid_spec(void *match_mask, void *match_value)
{
uint8_t *m = match_mask;
uint8_t *v = match_value;
unsigned int i;
for (i = 0; i < MLX5_ST_SZ_DB(fte_match_param); ++i) {
if (v[i] & ~m[i]) {
DRV_LOG(ERR,
"match_value differs from match_criteria"
" %p[%u] != %p[%u]",
match_value, i, match_mask, i);
return -EINVAL;
}
}
return 0;
}
#endif
/**
* Add Ethernet item to matcher and to the value.
*
* @param[in, out] matcher
* Flow matcher.
* @param[in, out] key
* Flow matcher value.
* @param[in] item
* Flow pattern to translate.
* @param[in] inner
* Item is inner pattern.
*/
static void
flow_dv_translate_item_eth(void *matcher, void *key,
const struct rte_flow_item *item, int inner)
{
const struct rte_flow_item_eth *eth_m = item->mask;
const struct rte_flow_item_eth *eth_v = item->spec;
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),
};
void *headers_m;
void *headers_v;
char *l24_v;
unsigned int i;
if (!eth_v)
return;
if (!eth_m)
eth_m = &nic_mask;
if (inner) {
headers_m = MLX5_ADDR_OF(fte_match_param, matcher,
inner_headers);
headers_v = MLX5_ADDR_OF(fte_match_param, key, inner_headers);
} else {
headers_m = MLX5_ADDR_OF(fte_match_param, matcher,
outer_headers);
headers_v = MLX5_ADDR_OF(fte_match_param, key, outer_headers);
}
memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_m, dmac_47_16),
&eth_m->dst, sizeof(eth_m->dst));
/* The value must be in the range of the mask. */
l24_v = MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, dmac_47_16);
for (i = 0; i < sizeof(eth_m->dst); ++i)
l24_v[i] = eth_m->dst.addr_bytes[i] & eth_v->dst.addr_bytes[i];
memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_m, smac_47_16),
&eth_m->src, sizeof(eth_m->src));
l24_v = MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, smac_47_16);
/* The value must be in the range of the mask. */
for (i = 0; i < sizeof(eth_m->dst); ++i)
l24_v[i] = eth_m->src.addr_bytes[i] & eth_v->src.addr_bytes[i];
MLX5_SET(fte_match_set_lyr_2_4, headers_m, ethertype,
rte_be_to_cpu_16(eth_m->type));
l24_v = MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, ethertype);
*(uint16_t *)(l24_v) = eth_m->type & eth_v->type;
}
/**
* Add VLAN item to matcher and to the value.
*
* @param[in, out] matcher
* Flow matcher.
* @param[in, out] key
* Flow matcher value.
* @param[in] item
* Flow pattern to translate.
* @param[in] inner
* Item is inner pattern.
*/
static void
flow_dv_translate_item_vlan(void *matcher, void *key,
const struct rte_flow_item *item,
int inner)
{
const struct rte_flow_item_vlan *vlan_m = item->mask;
const struct rte_flow_item_vlan *vlan_v = item->spec;
const struct rte_flow_item_vlan nic_mask = {
.tci = RTE_BE16(0x0fff),
.inner_type = RTE_BE16(0xffff),
};
void *headers_m;
void *headers_v;
uint16_t tci_m;
uint16_t tci_v;
if (!vlan_v)
return;
if (!vlan_m)
vlan_m = &nic_mask;
if (inner) {
headers_m = MLX5_ADDR_OF(fte_match_param, matcher,
inner_headers);
headers_v = MLX5_ADDR_OF(fte_match_param, key, inner_headers);
} else {
headers_m = MLX5_ADDR_OF(fte_match_param, matcher,
outer_headers);
headers_v = MLX5_ADDR_OF(fte_match_param, key, outer_headers);
}
tci_m = rte_be_to_cpu_16(vlan_m->tci);
tci_v = rte_be_to_cpu_16(vlan_m->tci & vlan_v->tci);
MLX5_SET(fte_match_set_lyr_2_4, headers_m, cvlan_tag, 1);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, cvlan_tag, 1);
MLX5_SET(fte_match_set_lyr_2_4, headers_m, first_vid, tci_m);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, first_vid, tci_v);
MLX5_SET(fte_match_set_lyr_2_4, headers_m, first_cfi, tci_m >> 12);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, first_cfi, tci_v >> 12);
MLX5_SET(fte_match_set_lyr_2_4, headers_m, first_prio, tci_m >> 13);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, first_prio, tci_v >> 13);
}
/**
* Add IPV4 item to matcher and to the value.
*
* @param[in, out] matcher
* Flow matcher.
* @param[in, out] key
* Flow matcher value.
* @param[in] item
* Flow pattern to translate.
* @param[in] inner
* Item is inner pattern.
* @param[in] group
* The group to insert the rule.
*/
static void
flow_dv_translate_item_ipv4(void *matcher, void *key,
const struct rte_flow_item *item,
int inner, uint32_t group)
{
const struct rte_flow_item_ipv4 *ipv4_m = item->mask;
const struct rte_flow_item_ipv4 *ipv4_v = item->spec;
const struct rte_flow_item_ipv4 nic_mask = {
.hdr = {
.src_addr = RTE_BE32(0xffffffff),
.dst_addr = RTE_BE32(0xffffffff),
.type_of_service = 0xff,
.next_proto_id = 0xff,
},
};
void *headers_m;
void *headers_v;
char *l24_m;
char *l24_v;
uint8_t tos;
if (inner) {
headers_m = MLX5_ADDR_OF(fte_match_param, matcher,
inner_headers);
headers_v = MLX5_ADDR_OF(fte_match_param, key, inner_headers);
} else {
headers_m = MLX5_ADDR_OF(fte_match_param, matcher,
outer_headers);
headers_v = MLX5_ADDR_OF(fte_match_param, key, outer_headers);
}
if (group == 0)
MLX5_SET(fte_match_set_lyr_2_4, headers_m, ip_version, 0xf);
else
MLX5_SET(fte_match_set_lyr_2_4, headers_m, ip_version, 0x4);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_version, 4);
if (!ipv4_v)
return;
if (!ipv4_m)
ipv4_m = &nic_mask;
l24_m = MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_m,
dst_ipv4_dst_ipv6.ipv4_layout.ipv4);
l24_v = MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
dst_ipv4_dst_ipv6.ipv4_layout.ipv4);
*(uint32_t *)l24_m = ipv4_m->hdr.dst_addr;
*(uint32_t *)l24_v = ipv4_m->hdr.dst_addr & ipv4_v->hdr.dst_addr;
l24_m = MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_m,
src_ipv4_src_ipv6.ipv4_layout.ipv4);
l24_v = MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
src_ipv4_src_ipv6.ipv4_layout.ipv4);
*(uint32_t *)l24_m = ipv4_m->hdr.src_addr;
*(uint32_t *)l24_v = ipv4_m->hdr.src_addr & ipv4_v->hdr.src_addr;
tos = ipv4_m->hdr.type_of_service & ipv4_v->hdr.type_of_service;
MLX5_SET(fte_match_set_lyr_2_4, headers_m, ip_ecn,
ipv4_m->hdr.type_of_service);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_ecn, tos);
MLX5_SET(fte_match_set_lyr_2_4, headers_m, ip_dscp,
ipv4_m->hdr.type_of_service >> 2);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_dscp, tos >> 2);
MLX5_SET(fte_match_set_lyr_2_4, headers_m, ip_protocol,
ipv4_m->hdr.next_proto_id);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol,
ipv4_v->hdr.next_proto_id & ipv4_m->hdr.next_proto_id);
}
/**
* Add IPV6 item to matcher and to the value.
*
* @param[in, out] matcher
* Flow matcher.
* @param[in, out] key
* Flow matcher value.
* @param[in] item
* Flow pattern to translate.
* @param[in] inner
* Item is inner pattern.
* @param[in] group
* The group to insert the rule.
*/
static void
flow_dv_translate_item_ipv6(void *matcher, void *key,
const struct rte_flow_item *item,
int inner, uint32_t group)
{
const struct rte_flow_item_ipv6 *ipv6_m = item->mask;
const struct rte_flow_item_ipv6 *ipv6_v = item->spec;
const struct rte_flow_item_ipv6 nic_mask = {
.hdr = {
.src_addr =
"\xff\xff\xff\xff\xff\xff\xff\xff"
"\xff\xff\xff\xff\xff\xff\xff\xff",
.dst_addr =
"\xff\xff\xff\xff\xff\xff\xff\xff"
"\xff\xff\xff\xff\xff\xff\xff\xff",
.vtc_flow = RTE_BE32(0xffffffff),
.proto = 0xff,
.hop_limits = 0xff,
},
};
void *headers_m;
void *headers_v;
void *misc_m = MLX5_ADDR_OF(fte_match_param, matcher, misc_parameters);
void *misc_v = MLX5_ADDR_OF(fte_match_param, key, misc_parameters);
char *l24_m;
char *l24_v;
uint32_t vtc_m;
uint32_t vtc_v;
int i;
int size;
if (inner) {
headers_m = MLX5_ADDR_OF(fte_match_param, matcher,
inner_headers);
headers_v = MLX5_ADDR_OF(fte_match_param, key, inner_headers);
} else {
headers_m = MLX5_ADDR_OF(fte_match_param, matcher,
outer_headers);
headers_v = MLX5_ADDR_OF(fte_match_param, key, outer_headers);
}
if (group == 0)
MLX5_SET(fte_match_set_lyr_2_4, headers_m, ip_version, 0xf);
else
MLX5_SET(fte_match_set_lyr_2_4, headers_m, ip_version, 0x6);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_version, 6);
if (!ipv6_v)
return;
if (!ipv6_m)
ipv6_m = &nic_mask;
size = sizeof(ipv6_m->hdr.dst_addr);
l24_m = MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_m,
dst_ipv4_dst_ipv6.ipv6_layout.ipv6);
l24_v = MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
dst_ipv4_dst_ipv6.ipv6_layout.ipv6);
memcpy(l24_m, ipv6_m->hdr.dst_addr, size);
for (i = 0; i < size; ++i)
l24_v[i] = l24_m[i] & ipv6_v->hdr.dst_addr[i];
l24_m = MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_m,
src_ipv4_src_ipv6.ipv6_layout.ipv6);
l24_v = MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
src_ipv4_src_ipv6.ipv6_layout.ipv6);
memcpy(l24_m, ipv6_m->hdr.src_addr, size);
for (i = 0; i < size; ++i)
l24_v[i] = l24_m[i] & ipv6_v->hdr.src_addr[i];
/* TOS. */
vtc_m = rte_be_to_cpu_32(ipv6_m->hdr.vtc_flow);
vtc_v = rte_be_to_cpu_32(ipv6_m->hdr.vtc_flow & ipv6_v->hdr.vtc_flow);
MLX5_SET(fte_match_set_lyr_2_4, headers_m, ip_ecn, vtc_m >> 20);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_ecn, vtc_v >> 20);
MLX5_SET(fte_match_set_lyr_2_4, headers_m, ip_dscp, vtc_m >> 22);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_dscp, vtc_v >> 22);
/* Label. */
if (inner) {
MLX5_SET(fte_match_set_misc, misc_m, inner_ipv6_flow_label,
vtc_m);
MLX5_SET(fte_match_set_misc, misc_v, inner_ipv6_flow_label,
vtc_v);
} else {
MLX5_SET(fte_match_set_misc, misc_m, outer_ipv6_flow_label,
vtc_m);
MLX5_SET(fte_match_set_misc, misc_v, outer_ipv6_flow_label,
vtc_v);
}
/* Protocol. */
MLX5_SET(fte_match_set_lyr_2_4, headers_m, ip_protocol,
ipv6_m->hdr.proto);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol,
ipv6_v->hdr.proto & ipv6_m->hdr.proto);
}
/**
* Add TCP item to matcher and to the value.
*
* @param[in, out] matcher
* Flow matcher.
* @param[in, out] key
* Flow matcher value.
* @param[in] item
* Flow pattern to translate.
* @param[in] inner
* Item is inner pattern.
*/
static void
flow_dv_translate_item_tcp(void *matcher, void *key,
const struct rte_flow_item *item,
int inner)
{
const struct rte_flow_item_tcp *tcp_m = item->mask;
const struct rte_flow_item_tcp *tcp_v = item->spec;
void *headers_m;
void *headers_v;
if (inner) {
headers_m = MLX5_ADDR_OF(fte_match_param, matcher,
inner_headers);
headers_v = MLX5_ADDR_OF(fte_match_param, key, inner_headers);
} else {
headers_m = MLX5_ADDR_OF(fte_match_param, matcher,
outer_headers);
headers_v = MLX5_ADDR_OF(fte_match_param, key, outer_headers);
}
MLX5_SET(fte_match_set_lyr_2_4, headers_m, ip_protocol, 0xff);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, IPPROTO_TCP);
if (!tcp_v)
return;
if (!tcp_m)
tcp_m = &rte_flow_item_tcp_mask;
MLX5_SET(fte_match_set_lyr_2_4, headers_m, tcp_sport,
rte_be_to_cpu_16(tcp_m->hdr.src_port));
MLX5_SET(fte_match_set_lyr_2_4, headers_v, tcp_sport,
rte_be_to_cpu_16(tcp_v->hdr.src_port & tcp_m->hdr.src_port));
MLX5_SET(fte_match_set_lyr_2_4, headers_m, tcp_dport,
rte_be_to_cpu_16(tcp_m->hdr.dst_port));
MLX5_SET(fte_match_set_lyr_2_4, headers_v, tcp_dport,
rte_be_to_cpu_16(tcp_v->hdr.dst_port & tcp_m->hdr.dst_port));
}
/**
* Add UDP item to matcher and to the value.
*
* @param[in, out] matcher
* Flow matcher.
* @param[in, out] key
* Flow matcher value.
* @param[in] item
* Flow pattern to translate.
* @param[in] inner
* Item is inner pattern.
*/
static void
flow_dv_translate_item_udp(void *matcher, void *key,
const struct rte_flow_item *item,
int inner)
{
const struct rte_flow_item_udp *udp_m = item->mask;
const struct rte_flow_item_udp *udp_v = item->spec;
void *headers_m;
void *headers_v;
if (inner) {
headers_m = MLX5_ADDR_OF(fte_match_param, matcher,
inner_headers);
headers_v = MLX5_ADDR_OF(fte_match_param, key, inner_headers);
} else {
headers_m = MLX5_ADDR_OF(fte_match_param, matcher,
outer_headers);
headers_v = MLX5_ADDR_OF(fte_match_param, key, outer_headers);
}
MLX5_SET(fte_match_set_lyr_2_4, headers_m, ip_protocol, 0xff);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, IPPROTO_UDP);
if (!udp_v)
return;
if (!udp_m)
udp_m = &rte_flow_item_udp_mask;
MLX5_SET(fte_match_set_lyr_2_4, headers_m, udp_sport,
rte_be_to_cpu_16(udp_m->hdr.src_port));
MLX5_SET(fte_match_set_lyr_2_4, headers_v, udp_sport,
rte_be_to_cpu_16(udp_v->hdr.src_port & udp_m->hdr.src_port));
MLX5_SET(fte_match_set_lyr_2_4, headers_m, udp_dport,
rte_be_to_cpu_16(udp_m->hdr.dst_port));
MLX5_SET(fte_match_set_lyr_2_4, headers_v, udp_dport,
rte_be_to_cpu_16(udp_v->hdr.dst_port & udp_m->hdr.dst_port));
}
/**
* Add GRE item to matcher and to the value.
*
* @param[in, out] matcher
* Flow matcher.
* @param[in, out] key
* Flow matcher value.
* @param[in] item
* Flow pattern to translate.
* @param[in] inner
* Item is inner pattern.
*/
static void
flow_dv_translate_item_gre(void *matcher, void *key,
const struct rte_flow_item *item,
int inner)
{
const struct rte_flow_item_gre *gre_m = item->mask;
const struct rte_flow_item_gre *gre_v = item->spec;
void *headers_m;
void *headers_v;
void *misc_m = MLX5_ADDR_OF(fte_match_param, matcher, misc_parameters);
void *misc_v = MLX5_ADDR_OF(fte_match_param, key, misc_parameters);
if (inner) {
headers_m = MLX5_ADDR_OF(fte_match_param, matcher,
inner_headers);
headers_v = MLX5_ADDR_OF(fte_match_param, key, inner_headers);
} else {
headers_m = MLX5_ADDR_OF(fte_match_param, matcher,
outer_headers);
headers_v = MLX5_ADDR_OF(fte_match_param, key, outer_headers);
}
MLX5_SET(fte_match_set_lyr_2_4, headers_m, ip_protocol, 0xff);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, IPPROTO_GRE);
if (!gre_v)
return;
if (!gre_m)
gre_m = &rte_flow_item_gre_mask;
MLX5_SET(fte_match_set_misc, misc_m, gre_protocol,
rte_be_to_cpu_16(gre_m->protocol));
MLX5_SET(fte_match_set_misc, misc_v, gre_protocol,
rte_be_to_cpu_16(gre_v->protocol & gre_m->protocol));
}
/**
* Add NVGRE item to matcher and to the value.
*
* @param[in, out] matcher
* Flow matcher.
* @param[in, out] key
* Flow matcher value.
* @param[in] item
* Flow pattern to translate.
* @param[in] inner
* Item is inner pattern.
*/
static void
flow_dv_translate_item_nvgre(void *matcher, void *key,
const struct rte_flow_item *item,
int inner)
{
const struct rte_flow_item_nvgre *nvgre_m = item->mask;
const struct rte_flow_item_nvgre *nvgre_v = item->spec;
void *misc_m = MLX5_ADDR_OF(fte_match_param, matcher, misc_parameters);
void *misc_v = MLX5_ADDR_OF(fte_match_param, key, misc_parameters);
const char *tni_flow_id_m = (const char *)nvgre_m->tni;
const char *tni_flow_id_v = (const char *)nvgre_v->tni;
char *gre_key_m;
char *gre_key_v;
int size;
int i;
flow_dv_translate_item_gre(matcher, key, item, inner);
if (!nvgre_v)
return;
if (!nvgre_m)
nvgre_m = &rte_flow_item_nvgre_mask;
size = sizeof(nvgre_m->tni) + sizeof(nvgre_m->flow_id);
gre_key_m = MLX5_ADDR_OF(fte_match_set_misc, misc_m, gre_key_h);
gre_key_v = MLX5_ADDR_OF(fte_match_set_misc, misc_v, gre_key_h);
memcpy(gre_key_m, tni_flow_id_m, size);
for (i = 0; i < size; ++i)
gre_key_v[i] = gre_key_m[i] & tni_flow_id_v[i];
}
/**
* Add VXLAN item to matcher and to the value.
*
* @param[in, out] matcher
* Flow matcher.
* @param[in, out] key
* Flow matcher value.
* @param[in] item
* Flow pattern to translate.
* @param[in] inner
* Item is inner pattern.
*/
static void
flow_dv_translate_item_vxlan(void *matcher, void *key,
const struct rte_flow_item *item,
int inner)
{
const struct rte_flow_item_vxlan *vxlan_m = item->mask;
const struct rte_flow_item_vxlan *vxlan_v = item->spec;
void *headers_m;
void *headers_v;
void *misc_m = MLX5_ADDR_OF(fte_match_param, matcher, misc_parameters);
void *misc_v = MLX5_ADDR_OF(fte_match_param, key, misc_parameters);
char *vni_m;
char *vni_v;
uint16_t dport;
int size;
int i;
if (inner) {
headers_m = MLX5_ADDR_OF(fte_match_param, matcher,
inner_headers);
headers_v = MLX5_ADDR_OF(fte_match_param, key, inner_headers);
} else {
headers_m = MLX5_ADDR_OF(fte_match_param, matcher,
outer_headers);
headers_v = MLX5_ADDR_OF(fte_match_param, key, outer_headers);
}
dport = item->type == RTE_FLOW_ITEM_TYPE_VXLAN ?
MLX5_UDP_PORT_VXLAN : MLX5_UDP_PORT_VXLAN_GPE;
if (!MLX5_GET16(fte_match_set_lyr_2_4, headers_v, udp_dport)) {
MLX5_SET(fte_match_set_lyr_2_4, headers_m, udp_dport, 0xFFFF);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, udp_dport, dport);
}
if (!vxlan_v)
return;
if (!vxlan_m)
vxlan_m = &rte_flow_item_vxlan_mask;
size = sizeof(vxlan_m->vni);
vni_m = MLX5_ADDR_OF(fte_match_set_misc, misc_m, vxlan_vni);
vni_v = MLX5_ADDR_OF(fte_match_set_misc, misc_v, vxlan_vni);
memcpy(vni_m, vxlan_m->vni, size);
for (i = 0; i < size; ++i)
vni_v[i] = vni_m[i] & vxlan_v->vni[i];
}
/**
* Add MPLS item to matcher and to the value.
*
* @param[in, out] matcher
* Flow matcher.
* @param[in, out] key
* Flow matcher value.
* @param[in] item
* Flow pattern to translate.
* @param[in] prev_layer
* The protocol layer indicated in previous item.
* @param[in] inner
* Item is inner pattern.
*/
static void
flow_dv_translate_item_mpls(void *matcher, void *key,
const struct rte_flow_item *item,
uint64_t prev_layer,
int inner)
{
const uint32_t *in_mpls_m = item->mask;
const uint32_t *in_mpls_v = item->spec;
uint32_t *out_mpls_m = 0;
uint32_t *out_mpls_v = 0;
void *misc_m = MLX5_ADDR_OF(fte_match_param, matcher, misc_parameters);
void *misc_v = MLX5_ADDR_OF(fte_match_param, key, misc_parameters);
void *misc2_m = MLX5_ADDR_OF(fte_match_param, matcher,
misc_parameters_2);
void *misc2_v = MLX5_ADDR_OF(fte_match_param, key, misc_parameters_2);
void *headers_m = MLX5_ADDR_OF(fte_match_param, matcher, outer_headers);
void *headers_v = MLX5_ADDR_OF(fte_match_param, key, outer_headers);
switch (prev_layer) {
case MLX5_FLOW_LAYER_OUTER_L4_UDP:
MLX5_SET(fte_match_set_lyr_2_4, headers_m, udp_dport, 0xffff);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, udp_dport,
MLX5_UDP_PORT_MPLS);
break;
case MLX5_FLOW_LAYER_GRE:
MLX5_SET(fte_match_set_misc, misc_m, gre_protocol, 0xffff);
MLX5_SET(fte_match_set_misc, misc_v, gre_protocol,
ETHER_TYPE_MPLS);
break;
default:
MLX5_SET(fte_match_set_lyr_2_4, headers_m, ip_protocol, 0xff);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol,
IPPROTO_MPLS);
break;
}
if (!in_mpls_v)
return;
if (!in_mpls_m)
in_mpls_m = (const uint32_t *)&rte_flow_item_mpls_mask;
switch (prev_layer) {
case MLX5_FLOW_LAYER_OUTER_L4_UDP:
out_mpls_m =
(uint32_t *)MLX5_ADDR_OF(fte_match_set_misc2, misc2_m,
outer_first_mpls_over_udp);
out_mpls_v =
(uint32_t *)MLX5_ADDR_OF(fte_match_set_misc2, misc2_v,
outer_first_mpls_over_udp);
break;
case MLX5_FLOW_LAYER_GRE:
out_mpls_m =
(uint32_t *)MLX5_ADDR_OF(fte_match_set_misc2, misc2_m,
outer_first_mpls_over_gre);
out_mpls_v =
(uint32_t *)MLX5_ADDR_OF(fte_match_set_misc2, misc2_v,
outer_first_mpls_over_gre);
break;
default:
/* Inner MPLS not over GRE is not supported. */
if (!inner) {
out_mpls_m =
(uint32_t *)MLX5_ADDR_OF(fte_match_set_misc2,
misc2_m,
outer_first_mpls);
out_mpls_v =
(uint32_t *)MLX5_ADDR_OF(fte_match_set_misc2,
misc2_v,
outer_first_mpls);
}
break;
}
if (out_mpls_m && out_mpls_v) {
*out_mpls_m = *in_mpls_m;
*out_mpls_v = *in_mpls_v & *in_mpls_m;
}
}
/**
* Add META item to matcher
*
* @param[in, out] matcher
* Flow matcher.
* @param[in, out] key
* Flow matcher value.
* @param[in] item
* Flow pattern to translate.
* @param[in] inner
* Item is inner pattern.
*/
static void
flow_dv_translate_item_meta(void *matcher, void *key,
const struct rte_flow_item *item)
{
const struct rte_flow_item_meta *meta_m;
const struct rte_flow_item_meta *meta_v;
void *misc2_m =
MLX5_ADDR_OF(fte_match_param, matcher, misc_parameters_2);
void *misc2_v =
MLX5_ADDR_OF(fte_match_param, key, misc_parameters_2);
meta_m = (const void *)item->mask;
if (!meta_m)
meta_m = &rte_flow_item_meta_mask;
meta_v = (const void *)item->spec;
if (meta_v) {
MLX5_SET(fte_match_set_misc2, misc2_m, metadata_reg_a,
rte_be_to_cpu_32(meta_m->data));
MLX5_SET(fte_match_set_misc2, misc2_v, metadata_reg_a,
rte_be_to_cpu_32(meta_v->data & meta_m->data));
}
}
static uint32_t matcher_zero[MLX5_ST_SZ_DW(fte_match_param)] = { 0 };
#define HEADER_IS_ZERO(match_criteria, headers) \
!(memcmp(MLX5_ADDR_OF(fte_match_param, match_criteria, headers), \
matcher_zero, MLX5_FLD_SZ_BYTES(fte_match_param, headers))) \
/**
* Calculate flow matcher enable bitmap.
*
* @param match_criteria
* Pointer to flow matcher criteria.
*
* @return
* Bitmap of enabled fields.
*/
static uint8_t
flow_dv_matcher_enable(uint32_t *match_criteria)
{
uint8_t match_criteria_enable;
match_criteria_enable =
(!HEADER_IS_ZERO(match_criteria, outer_headers)) <<
MLX5_MATCH_CRITERIA_ENABLE_OUTER_BIT;
match_criteria_enable |=
(!HEADER_IS_ZERO(match_criteria, misc_parameters)) <<
MLX5_MATCH_CRITERIA_ENABLE_MISC_BIT;
match_criteria_enable |=
(!HEADER_IS_ZERO(match_criteria, inner_headers)) <<
MLX5_MATCH_CRITERIA_ENABLE_INNER_BIT;
match_criteria_enable |=
(!HEADER_IS_ZERO(match_criteria, misc_parameters_2)) <<
MLX5_MATCH_CRITERIA_ENABLE_MISC2_BIT;
#ifdef HAVE_MLX5DV_DR
match_criteria_enable |=
(!HEADER_IS_ZERO(match_criteria, misc_parameters_3)) <<
MLX5_MATCH_CRITERIA_ENABLE_MISC3_BIT;
#endif
return match_criteria_enable;
}
/**
* Get a flow table.
*
* @param dev[in, out]
* Pointer to rte_eth_dev structure.
* @param[in] table_id
* Table id to use.
* @param[in] egress
* Direction of the table.
* @param[out] error
* pointer to error structure.
*
* @return
* Returns tables resource based on the index, NULL in case of failed.
*/
static struct mlx5_flow_tbl_resource *
flow_dv_tbl_resource_get(struct rte_eth_dev *dev,
uint32_t table_id, uint8_t egress,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_ibv_shared *sh = priv->sh;
struct mlx5_flow_tbl_resource *tbl;
#ifdef HAVE_MLX5DV_DR
if (egress) {
tbl = &sh->tx_tbl[table_id];
if (!tbl->obj)
tbl->obj = mlx5_glue->dr_create_flow_tbl
(sh->tx_ns, table_id);
} else {
tbl = &sh->rx_tbl[table_id];
if (!tbl->obj)
tbl->obj = mlx5_glue->dr_create_flow_tbl
(sh->rx_ns, table_id);
}
if (!tbl->obj) {
rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL, "cannot create table");
return NULL;
}
rte_atomic32_inc(&tbl->refcnt);
return tbl;
#else
(void)error;
(void)tbl;
if (egress)
return &sh->tx_tbl[table_id];
else
return &sh->rx_tbl[table_id];
#endif
}
/**
* Release a flow table.
*
* @param[in] tbl
* Table resource to be released.
*
* @return
* Returns 0 if table was released, else return 1;
*/
static int
flow_dv_tbl_resource_release(struct mlx5_flow_tbl_resource *tbl)
{
if (!tbl)
return 0;
if (rte_atomic32_dec_and_test(&tbl->refcnt)) {
mlx5_glue->dr_destroy_flow_tbl(tbl->obj);
tbl->obj = NULL;
return 0;
}
return 1;
}
/**
* Register the flow matcher.
*
* @param dev[in, out]
* Pointer to rte_eth_dev structure.
* @param[in, out] matcher
* Pointer to flow matcher.
* @parm[in, out] dev_flow
* Pointer to the dev_flow.
* @param[out] error
* pointer to error structure.
*
* @return
* 0 on success otherwise -errno and errno is set.
*/
static int
flow_dv_matcher_register(struct rte_eth_dev *dev,
struct mlx5_flow_dv_matcher *matcher,
struct mlx5_flow *dev_flow,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_ibv_shared *sh = priv->sh;
struct mlx5_flow_dv_matcher *cache_matcher;
struct mlx5dv_flow_matcher_attr dv_attr = {
.type = IBV_FLOW_ATTR_NORMAL,
.match_mask = (void *)&matcher->mask,
};
struct mlx5_flow_tbl_resource *tbl = NULL;
/* Lookup from cache. */
LIST_FOREACH(cache_matcher, &sh->matchers, next) {
if (matcher->crc == cache_matcher->crc &&
matcher->priority == cache_matcher->priority &&
matcher->egress == cache_matcher->egress &&
matcher->group == cache_matcher->group &&
!memcmp((const void *)matcher->mask.buf,
(const void *)cache_matcher->mask.buf,
cache_matcher->mask.size)) {
DRV_LOG(DEBUG,
"priority %hd use %s matcher %p: refcnt %d++",
cache_matcher->priority,
cache_matcher->egress ? "tx" : "rx",
(void *)cache_matcher,
rte_atomic32_read(&cache_matcher->refcnt));
rte_atomic32_inc(&cache_matcher->refcnt);
dev_flow->dv.matcher = cache_matcher;
return 0;
}
}
/* Register new matcher. */
cache_matcher = rte_calloc(__func__, 1, sizeof(*cache_matcher), 0);
if (!cache_matcher)
return rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
"cannot allocate matcher memory");
tbl = flow_dv_tbl_resource_get(dev, matcher->group * MLX5_GROUP_FACTOR,
matcher->egress, error);
if (!tbl) {
rte_free(cache_matcher);
return rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL, "cannot create table");
}
*cache_matcher = *matcher;
dv_attr.match_criteria_enable =
flow_dv_matcher_enable(cache_matcher->mask.buf);
dv_attr.priority = matcher->priority;
if (matcher->egress)
dv_attr.flags |= IBV_FLOW_ATTR_FLAGS_EGRESS;
cache_matcher->matcher_object =
mlx5_glue->dv_create_flow_matcher(sh->ctx, &dv_attr, tbl->obj);
if (!cache_matcher->matcher_object) {
rte_free(cache_matcher);
#ifdef HAVE_MLX5DV_DR
flow_dv_tbl_resource_release(tbl);
#endif
return rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL, "cannot create matcher");
}
rte_atomic32_inc(&cache_matcher->refcnt);
LIST_INSERT_HEAD(&sh->matchers, cache_matcher, next);
dev_flow->dv.matcher = cache_matcher;
DRV_LOG(DEBUG, "priority %hd new %s matcher %p: refcnt %d",
cache_matcher->priority,
cache_matcher->egress ? "tx" : "rx", (void *)cache_matcher,
rte_atomic32_read(&cache_matcher->refcnt));
rte_atomic32_inc(&tbl->refcnt);
return 0;
}
/**
* Add source vport match to the specified matcher.
*
* @param[in, out] matcher
* Flow matcher.
* @param[in, out] key
* Flow matcher value.
* @param[in] port
* Source vport value to match
* @param[in] mask
* Mask
*/
static void
flow_dv_translate_source_vport(void *matcher, void *key,
int16_t port, uint16_t mask)
{
void *misc_m = MLX5_ADDR_OF(fte_match_param, matcher, misc_parameters);
void *misc_v = MLX5_ADDR_OF(fte_match_param, key, misc_parameters);
MLX5_SET(fte_match_set_misc, misc_m, source_port, mask);
MLX5_SET(fte_match_set_misc, misc_v, source_port, port);
}
/**
* Find existing tag resource or create and register a new one.
*
* @param dev[in, out]
* Pointer to rte_eth_dev structure.
* @param[in, out] resource
* Pointer to tag resource.
* @parm[in, out] dev_flow
* Pointer to the dev_flow.
* @param[out] error
* pointer to error structure.
*
* @return
* 0 on success otherwise -errno and errno is set.
*/
static int
flow_dv_tag_resource_register
(struct rte_eth_dev *dev,
struct mlx5_flow_dv_tag_resource *resource,
struct mlx5_flow *dev_flow,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_ibv_shared *sh = priv->sh;
struct mlx5_flow_dv_tag_resource *cache_resource;
/* Lookup a matching resource from cache. */
LIST_FOREACH(cache_resource, &sh->tags, next) {
if (resource->tag == cache_resource->tag) {
DRV_LOG(DEBUG, "tag resource %p: refcnt %d++",
(void *)cache_resource,
rte_atomic32_read(&cache_resource->refcnt));
rte_atomic32_inc(&cache_resource->refcnt);
dev_flow->flow->tag_resource = cache_resource;
return 0;
}
}
/* Register new resource. */
cache_resource = rte_calloc(__func__, 1, sizeof(*cache_resource), 0);
if (!cache_resource)
return rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
"cannot allocate resource memory");
*cache_resource = *resource;
cache_resource->action = mlx5_glue->dv_create_flow_action_tag
(resource->tag);
if (!cache_resource->action) {
rte_free(cache_resource);
return rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL, "cannot create action");
}
rte_atomic32_init(&cache_resource->refcnt);
rte_atomic32_inc(&cache_resource->refcnt);
LIST_INSERT_HEAD(&sh->tags, cache_resource, next);
dev_flow->flow->tag_resource = cache_resource;
DRV_LOG(DEBUG, "new tag resource %p: refcnt %d++",
(void *)cache_resource,
rte_atomic32_read(&cache_resource->refcnt));
return 0;
}
/**
* Release the tag.
*
* @param dev
* Pointer to Ethernet device.
* @param flow
* Pointer to mlx5_flow.
*
* @return
* 1 while a reference on it exists, 0 when freed.
*/
static int
flow_dv_tag_release(struct rte_eth_dev *dev,
struct mlx5_flow_dv_tag_resource *tag)
{
assert(tag);
DRV_LOG(DEBUG, "port %u tag %p: refcnt %d--",
dev->data->port_id, (void *)tag,
rte_atomic32_read(&tag->refcnt));
if (rte_atomic32_dec_and_test(&tag->refcnt)) {
claim_zero(mlx5_glue->destroy_flow_action(tag->action));
LIST_REMOVE(tag, next);
DRV_LOG(DEBUG, "port %u tag %p: removed",
dev->data->port_id, (void *)tag);
rte_free(tag);
return 0;
}
return 1;
}
/**
* Fill the flow with DV spec.
*
* @param[in] dev
* Pointer to rte_eth_dev structure.
* @param[in, out] dev_flow
* Pointer to the sub 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 int
flow_dv_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)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct rte_flow *flow = dev_flow->flow;
uint64_t item_flags = 0;
uint64_t last_item = 0;
uint64_t action_flags = 0;
uint64_t priority = attr->priority;
struct mlx5_flow_dv_matcher matcher = {
.mask = {
.size = sizeof(matcher.mask.buf),
},
};
int actions_n = 0;
bool actions_end = false;
struct mlx5_flow_dv_modify_hdr_resource res = {
.ft_type = attr->egress ? MLX5DV_FLOW_TABLE_TYPE_NIC_TX :
MLX5DV_FLOW_TABLE_TYPE_NIC_RX
};
union flow_dv_attr flow_attr = { .attr = 0 };
struct mlx5_flow_dv_tag_resource tag_resource;
if (priority == MLX5_FLOW_PRIO_RSVD)
priority = priv->config.flow_prio - 1;
for (; !actions_end ; actions++) {
const struct rte_flow_action_queue *queue;
const struct rte_flow_action_rss *rss;
const struct rte_flow_action *action = actions;
const struct rte_flow_action_count *count = action->conf;
const uint8_t *rss_key;
const struct rte_flow_action_jump *jump_data;
struct mlx5_flow_dv_jump_tbl_resource jump_tbl_resource;
struct mlx5_flow_tbl_resource *tbl;
switch (actions->type) {
case RTE_FLOW_ACTION_TYPE_VOID:
break;
case RTE_FLOW_ACTION_TYPE_FLAG:
tag_resource.tag =
mlx5_flow_mark_set(MLX5_FLOW_MARK_DEFAULT);
if (!flow->tag_resource)
if (flow_dv_tag_resource_register
(dev, &tag_resource, dev_flow, error))
return errno;
dev_flow->dv.actions[actions_n++] =
flow->tag_resource->action;
action_flags |= MLX5_FLOW_ACTION_FLAG;
break;
case RTE_FLOW_ACTION_TYPE_MARK:
tag_resource.tag = mlx5_flow_mark_set
(((const struct rte_flow_action_mark *)
(actions->conf))->id);
if (!flow->tag_resource)
if (flow_dv_tag_resource_register
(dev, &tag_resource, dev_flow, error))
return errno;
dev_flow->dv.actions[actions_n++] =
flow->tag_resource->action;
action_flags |= MLX5_FLOW_ACTION_MARK;
break;
case RTE_FLOW_ACTION_TYPE_DROP:
action_flags |= MLX5_FLOW_ACTION_DROP;
break;
case RTE_FLOW_ACTION_TYPE_QUEUE:
queue = actions->conf;
flow->rss.queue_num = 1;
(*flow->queue)[0] = queue->index;
action_flags |= MLX5_FLOW_ACTION_QUEUE;
break;
case RTE_FLOW_ACTION_TYPE_RSS:
rss = actions->conf;
if (flow->queue)
memcpy((*flow->queue), rss->queue,
rss->queue_num * sizeof(uint16_t));
flow->rss.queue_num = rss->queue_num;
/* NULL RSS key indicates default RSS key. */
rss_key = !rss->key ? rss_hash_default_key : rss->key;
memcpy(flow->key, rss_key, MLX5_RSS_HASH_KEY_LEN);
/* RSS type 0 indicates default RSS type ETH_RSS_IP. */
flow->rss.types = !rss->types ? ETH_RSS_IP : rss->types;
flow->rss.level = rss->level;
action_flags |= MLX5_FLOW_ACTION_RSS;
break;
case RTE_FLOW_ACTION_TYPE_COUNT:
if (!priv->config.devx) {
rte_errno = ENOTSUP;
goto cnt_err;
}
flow->counter = flow_dv_counter_new(dev, count->shared,
count->id);
if (flow->counter == NULL)
goto cnt_err;
dev_flow->dv.actions[actions_n++] =
flow->counter->action;
action_flags |= MLX5_FLOW_ACTION_COUNT;
break;
cnt_err:
if (rte_errno == ENOTSUP)
return rte_flow_error_set
(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL,
"count action not supported");
else
return rte_flow_error_set
(error, rte_errno,
RTE_FLOW_ERROR_TYPE_ACTION,
action,
"cannot create counter"
" object.");
case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
if (flow_dv_create_action_l2_encap(dev, actions,
dev_flow, error))
return -rte_errno;
dev_flow->dv.actions[actions_n++] =
dev_flow->dv.encap_decap->verbs_action;
action_flags |= actions->type ==
RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP ?
MLX5_FLOW_ACTION_VXLAN_ENCAP :
MLX5_FLOW_ACTION_NVGRE_ENCAP;
break;
case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP:
case RTE_FLOW_ACTION_TYPE_NVGRE_DECAP:
if (flow_dv_create_action_l2_decap(dev, dev_flow,
error))
return -rte_errno;
dev_flow->dv.actions[actions_n++] =
dev_flow->dv.encap_decap->verbs_action;
action_flags |= actions->type ==
RTE_FLOW_ACTION_TYPE_VXLAN_DECAP ?
MLX5_FLOW_ACTION_VXLAN_DECAP :
MLX5_FLOW_ACTION_NVGRE_DECAP;
break;
case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
/* Handle encap with preceding decap. */
if (action_flags & MLX5_FLOW_ACTION_RAW_DECAP) {
if (flow_dv_create_action_raw_encap
(dev, actions, dev_flow, attr, error))
return -rte_errno;
dev_flow->dv.actions[actions_n++] =
dev_flow->dv.encap_decap->verbs_action;
} else {
/* Handle encap without preceding decap. */
if (flow_dv_create_action_l2_encap(dev, actions,
dev_flow,
error))
return -rte_errno;
dev_flow->dv.actions[actions_n++] =
dev_flow->dv.encap_decap->verbs_action;
}
action_flags |= MLX5_FLOW_ACTION_RAW_ENCAP;
break;
case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
/* Check if this decap is followed by encap. */
for (; action->type != RTE_FLOW_ACTION_TYPE_END &&
action->type != RTE_FLOW_ACTION_TYPE_RAW_ENCAP;
action++) {
}
/* Handle decap only if it isn't followed by encap. */
if (action->type != RTE_FLOW_ACTION_TYPE_RAW_ENCAP) {
if (flow_dv_create_action_l2_decap(dev,
dev_flow,
error))
return -rte_errno;
dev_flow->dv.actions[actions_n++] =
dev_flow->dv.encap_decap->verbs_action;
}
/* If decap is followed by encap, handle it at encap. */
action_flags |= MLX5_FLOW_ACTION_RAW_DECAP;
break;
case RTE_FLOW_ACTION_TYPE_JUMP:
jump_data = action->conf;
tbl = flow_dv_tbl_resource_get(dev, jump_data->group *
MLX5_GROUP_FACTOR,
attr->egress, error);
if (!tbl)
return rte_flow_error_set
(error, errno,
RTE_FLOW_ERROR_TYPE_ACTION,
NULL,
"cannot create jump action.");
jump_tbl_resource.tbl = tbl;
if (flow_dv_jump_tbl_resource_register
(dev, &jump_tbl_resource, dev_flow, error)) {
flow_dv_tbl_resource_release(tbl);
return rte_flow_error_set
(error, errno,
RTE_FLOW_ERROR_TYPE_ACTION,
NULL,
"cannot create jump action.");
}
dev_flow->dv.actions[actions_n++] =
dev_flow->dv.jump->action;
action_flags |= MLX5_FLOW_ACTION_JUMP;
break;
case RTE_FLOW_ACTION_TYPE_SET_MAC_SRC:
case RTE_FLOW_ACTION_TYPE_SET_MAC_DST:
if (flow_dv_convert_action_modify_mac(&res, actions,
error))
return -rte_errno;
action_flags |= actions->type ==
RTE_FLOW_ACTION_TYPE_SET_MAC_SRC ?
MLX5_FLOW_ACTION_SET_MAC_SRC :
MLX5_FLOW_ACTION_SET_MAC_DST;
break;
case RTE_FLOW_ACTION_TYPE_SET_IPV4_SRC:
case RTE_FLOW_ACTION_TYPE_SET_IPV4_DST:
if (flow_dv_convert_action_modify_ipv4(&res, actions,
error))
return -rte_errno;
action_flags |= actions->type ==
RTE_FLOW_ACTION_TYPE_SET_IPV4_SRC ?
MLX5_FLOW_ACTION_SET_IPV4_SRC :
MLX5_FLOW_ACTION_SET_IPV4_DST;
break;
case RTE_FLOW_ACTION_TYPE_SET_IPV6_SRC:
case RTE_FLOW_ACTION_TYPE_SET_IPV6_DST:
if (flow_dv_convert_action_modify_ipv6(&res, actions,
error))
return -rte_errno;
action_flags |= actions->type ==
RTE_FLOW_ACTION_TYPE_SET_IPV6_SRC ?
MLX5_FLOW_ACTION_SET_IPV6_SRC :
MLX5_FLOW_ACTION_SET_IPV6_DST;
break;
case RTE_FLOW_ACTION_TYPE_SET_TP_SRC:
case RTE_FLOW_ACTION_TYPE_SET_TP_DST:
if (flow_dv_convert_action_modify_tp(&res, actions,
items, &flow_attr,
error))
return -rte_errno;
action_flags |= actions->type ==
RTE_FLOW_ACTION_TYPE_SET_TP_SRC ?
MLX5_FLOW_ACTION_SET_TP_SRC :
MLX5_FLOW_ACTION_SET_TP_DST;
break;
case RTE_FLOW_ACTION_TYPE_DEC_TTL:
if (flow_dv_convert_action_modify_dec_ttl(&res, items,
&flow_attr,
error))
return -rte_errno;
action_flags |= MLX5_FLOW_ACTION_DEC_TTL;
break;
case RTE_FLOW_ACTION_TYPE_SET_TTL:
if (flow_dv_convert_action_modify_ttl(&res, actions,
items, &flow_attr,
error))
return -rte_errno;
action_flags |= MLX5_FLOW_ACTION_SET_TTL;
break;
case RTE_FLOW_ACTION_TYPE_END:
actions_end = true;
if (action_flags & MLX5_FLOW_MODIFY_HDR_ACTIONS) {
/* create modify action if needed. */
if (flow_dv_modify_hdr_resource_register
(dev, &res,
dev_flow,
error))
return -rte_errno;
dev_flow->dv.actions[actions_n++] =
dev_flow->dv.modify_hdr->verbs_action;
}
break;
default:
break;
}
}
dev_flow->dv.actions_n = actions_n;
flow->actions = action_flags;
if (attr->ingress && !attr->transfer &&
(priv->representor || priv->master)) {
/* It was validated - we support unidirection flows only. */
assert(!attr->egress);
/*
* Add matching on source vport index only
* for ingress rules in E-Switch configurations.
*/
flow_dv_translate_source_vport(matcher.mask.buf,
dev_flow->dv.value.buf,
priv->vport_id,
0xffff);
}
for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) {
int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
void *match_mask = matcher.mask.buf;
void *match_value = dev_flow->dv.value.buf;
switch (items->type) {
case RTE_FLOW_ITEM_TYPE_ETH:
flow_dv_translate_item_eth(match_mask, match_value,
items, tunnel);
matcher.priority = MLX5_PRIORITY_MAP_L2;
last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L2 :
MLX5_FLOW_LAYER_OUTER_L2;
break;
case RTE_FLOW_ITEM_TYPE_VLAN:
flow_dv_translate_item_vlan(match_mask, match_value,
items, tunnel);
matcher.priority = MLX5_PRIORITY_MAP_L2;
last_item = tunnel ? (MLX5_FLOW_LAYER_INNER_L2 |
MLX5_FLOW_LAYER_INNER_VLAN) :
(MLX5_FLOW_LAYER_OUTER_L2 |
MLX5_FLOW_LAYER_OUTER_VLAN);
break;
case RTE_FLOW_ITEM_TYPE_IPV4:
flow_dv_translate_item_ipv4(match_mask, match_value,
items, tunnel, attr->group);
matcher.priority = MLX5_PRIORITY_MAP_L3;
dev_flow->dv.hash_fields |=
mlx5_flow_hashfields_adjust
(dev_flow, tunnel,
MLX5_IPV4_LAYER_TYPES,
MLX5_IPV4_IBV_RX_HASH);
last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV4 :
MLX5_FLOW_LAYER_OUTER_L3_IPV4;
break;
case RTE_FLOW_ITEM_TYPE_IPV6:
flow_dv_translate_item_ipv6(match_mask, match_value,
items, tunnel, attr->group);
matcher.priority = MLX5_PRIORITY_MAP_L3;
dev_flow->dv.hash_fields |=
mlx5_flow_hashfields_adjust
(dev_flow, tunnel,
MLX5_IPV6_LAYER_TYPES,
MLX5_IPV6_IBV_RX_HASH);
last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV6 :
MLX5_FLOW_LAYER_OUTER_L3_IPV6;
break;
case RTE_FLOW_ITEM_TYPE_TCP:
flow_dv_translate_item_tcp(match_mask, match_value,
items, tunnel);
matcher.priority = MLX5_PRIORITY_MAP_L4;
dev_flow->dv.hash_fields |=
mlx5_flow_hashfields_adjust
(dev_flow, tunnel, ETH_RSS_TCP,
IBV_RX_HASH_SRC_PORT_TCP |
IBV_RX_HASH_DST_PORT_TCP);
last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L4_TCP :
MLX5_FLOW_LAYER_OUTER_L4_TCP;
break;
case RTE_FLOW_ITEM_TYPE_UDP:
flow_dv_translate_item_udp(match_mask, match_value,
items, tunnel);
matcher.priority = MLX5_PRIORITY_MAP_L4;
dev_flow->dv.hash_fields |=
mlx5_flow_hashfields_adjust
(dev_flow, tunnel, ETH_RSS_UDP,
IBV_RX_HASH_SRC_PORT_UDP |
IBV_RX_HASH_DST_PORT_UDP);
last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L4_UDP :
MLX5_FLOW_LAYER_OUTER_L4_UDP;
break;
case RTE_FLOW_ITEM_TYPE_GRE:
flow_dv_translate_item_gre(match_mask, match_value,
items, tunnel);
last_item = MLX5_FLOW_LAYER_GRE;
break;
case RTE_FLOW_ITEM_TYPE_NVGRE:
flow_dv_translate_item_nvgre(match_mask, match_value,
items, tunnel);
last_item = MLX5_FLOW_LAYER_GRE;
break;
case RTE_FLOW_ITEM_TYPE_VXLAN:
flow_dv_translate_item_vxlan(match_mask, match_value,
items, tunnel);
last_item = MLX5_FLOW_LAYER_VXLAN;
break;
case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
flow_dv_translate_item_vxlan(match_mask, match_value,
items, tunnel);
last_item = MLX5_FLOW_LAYER_VXLAN_GPE;
break;
case RTE_FLOW_ITEM_TYPE_MPLS:
flow_dv_translate_item_mpls(match_mask, match_value,
items, last_item, tunnel);
last_item = MLX5_FLOW_LAYER_MPLS;
break;
case RTE_FLOW_ITEM_TYPE_META:
flow_dv_translate_item_meta(match_mask, match_value,
items);
last_item = MLX5_FLOW_ITEM_METADATA;
break;
default:
break;
}
item_flags |= last_item;
}
assert(!flow_dv_check_valid_spec(matcher.mask.buf,
dev_flow->dv.value.buf));
dev_flow->layers = item_flags;
/* Register matcher. */
matcher.crc = rte_raw_cksum((const void *)matcher.mask.buf,
matcher.mask.size);
matcher.priority = mlx5_flow_adjust_priority(dev, priority,
matcher.priority);
matcher.egress = attr->egress;
matcher.group = attr->group;
if (flow_dv_matcher_register(dev, &matcher, dev_flow, error))
return -rte_errno;
return 0;
}
/**
* Apply the flow to the NIC.
*
* @param[in] dev
* Pointer to the 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 int
flow_dv_apply(struct rte_eth_dev *dev, struct rte_flow *flow,
struct rte_flow_error *error)
{
struct mlx5_flow_dv *dv;
struct mlx5_flow *dev_flow;
int n;
int err;
LIST_FOREACH(dev_flow, &flow->dev_flows, next) {
dv = &dev_flow->dv;
n = dv->actions_n;
if (flow->actions & MLX5_FLOW_ACTION_DROP) {
dv->hrxq = mlx5_hrxq_drop_new(dev);
if (!dv->hrxq) {
rte_flow_error_set
(error, errno,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
"cannot get drop hash queue");
goto error;
}
dv->actions[n++] =
mlx5_glue->dv_create_flow_action_dest_ibv_qp
(dv->hrxq->qp);
} else if (flow->actions &
(MLX5_FLOW_ACTION_QUEUE | MLX5_FLOW_ACTION_RSS)) {
struct mlx5_hrxq *hrxq;
hrxq = mlx5_hrxq_get(dev, flow->key,
MLX5_RSS_HASH_KEY_LEN,
dv->hash_fields,
(*flow->queue),
flow->rss.queue_num);
if (!hrxq)
hrxq = mlx5_hrxq_new
(dev, flow->key, MLX5_RSS_HASH_KEY_LEN,
dv->hash_fields, (*flow->queue),
flow->rss.queue_num,
!!(dev_flow->layers &
MLX5_FLOW_LAYER_TUNNEL));
if (!hrxq) {
rte_flow_error_set
(error, rte_errno,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
"cannot get hash queue");
goto error;
}
dv->hrxq = hrxq;
dv->actions[n++] =
mlx5_glue->dv_create_flow_action_dest_ibv_qp
(dv->hrxq->qp);
}
dv->flow =
mlx5_glue->dv_create_flow(dv->matcher->matcher_object,
(void *)&dv->value, n,
dv->actions);
if (!dv->flow) {
rte_flow_error_set(error, errno,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL,
"hardware refuses to create flow");
goto error;
}
}
return 0;
error:
err = rte_errno; /* Save rte_errno before cleanup. */
LIST_FOREACH(dev_flow, &flow->dev_flows, next) {
struct mlx5_flow_dv *dv = &dev_flow->dv;
if (dv->hrxq) {
if (flow->actions & MLX5_FLOW_ACTION_DROP)
mlx5_hrxq_drop_release(dev);
else
mlx5_hrxq_release(dev, dv->hrxq);
dv->hrxq = NULL;
}
}
rte_errno = err; /* Restore rte_errno. */
return -rte_errno;
}
/**
* Release the flow matcher.
*
* @param dev
* Pointer to Ethernet device.
* @param flow
* Pointer to mlx5_flow.
*
* @return
* 1 while a reference on it exists, 0 when freed.
*/
static int
flow_dv_matcher_release(struct rte_eth_dev *dev,
struct mlx5_flow *flow)
{
struct mlx5_flow_dv_matcher *matcher = flow->dv.matcher;
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_ibv_shared *sh = priv->sh;
struct mlx5_flow_tbl_resource *tbl;
assert(matcher->matcher_object);
DRV_LOG(DEBUG, "port %u matcher %p: refcnt %d--",
dev->data->port_id, (void *)matcher,
rte_atomic32_read(&matcher->refcnt));
if (rte_atomic32_dec_and_test(&matcher->refcnt)) {
claim_zero(mlx5_glue->dv_destroy_flow_matcher
(matcher->matcher_object));
LIST_REMOVE(matcher, next);
if (matcher->egress)
tbl = &sh->tx_tbl[matcher->group];
else
tbl = &sh->rx_tbl[matcher->group];
flow_dv_tbl_resource_release(tbl);
rte_free(matcher);
DRV_LOG(DEBUG, "port %u matcher %p: removed",
dev->data->port_id, (void *)matcher);
return 0;
}
return 1;
}
/**
* Release an encap/decap resource.
*
* @param flow
* Pointer to mlx5_flow.
*
* @return
* 1 while a reference on it exists, 0 when freed.
*/
static int
flow_dv_encap_decap_resource_release(struct mlx5_flow *flow)
{
struct mlx5_flow_dv_encap_decap_resource *cache_resource =
flow->dv.encap_decap;
assert(cache_resource->verbs_action);
DRV_LOG(DEBUG, "encap/decap resource %p: refcnt %d--",
(void *)cache_resource,
rte_atomic32_read(&cache_resource->refcnt));
if (rte_atomic32_dec_and_test(&cache_resource->refcnt)) {
claim_zero(mlx5_glue->destroy_flow_action
(cache_resource->verbs_action));
LIST_REMOVE(cache_resource, next);
rte_free(cache_resource);
DRV_LOG(DEBUG, "encap/decap resource %p: removed",
(void *)cache_resource);
return 0;
}
return 1;
}
/**
* Release an jump to table action resource.
*
* @param flow
* Pointer to mlx5_flow.
*
* @return
* 1 while a reference on it exists, 0 when freed.
*/
static int
flow_dv_jump_tbl_resource_release(struct mlx5_flow *flow)
{
struct mlx5_flow_dv_jump_tbl_resource *cache_resource =
flow->dv.jump;
assert(cache_resource->action);
DRV_LOG(DEBUG, "jump table resource %p: refcnt %d--",
(void *)cache_resource,
rte_atomic32_read(&cache_resource->refcnt));
if (rte_atomic32_dec_and_test(&cache_resource->refcnt)) {
claim_zero(mlx5_glue->destroy_flow_action
(cache_resource->action));
LIST_REMOVE(cache_resource, next);
flow_dv_tbl_resource_release(cache_resource->tbl);
rte_free(cache_resource);
DRV_LOG(DEBUG, "jump table resource %p: removed",
(void *)cache_resource);
return 0;
}
return 1;
}
/**
* Release a modify-header resource.
*
* @param flow
* Pointer to mlx5_flow.
*
* @return
* 1 while a reference on it exists, 0 when freed.
*/
static int
flow_dv_modify_hdr_resource_release(struct mlx5_flow *flow)
{
struct mlx5_flow_dv_modify_hdr_resource *cache_resource =
flow->dv.modify_hdr;
assert(cache_resource->verbs_action);
DRV_LOG(DEBUG, "modify-header resource %p: refcnt %d--",
(void *)cache_resource,
rte_atomic32_read(&cache_resource->refcnt));
if (rte_atomic32_dec_and_test(&cache_resource->refcnt)) {
claim_zero(mlx5_glue->destroy_flow_action
(cache_resource->verbs_action));
LIST_REMOVE(cache_resource, next);
rte_free(cache_resource);
DRV_LOG(DEBUG, "modify-header resource %p: removed",
(void *)cache_resource);
return 0;
}
return 1;
}
/**
* Remove the flow from the NIC but keeps it in memory.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in, out] flow
* Pointer to flow structure.
*/
static void
flow_dv_remove(struct rte_eth_dev *dev, struct rte_flow *flow)
{
struct mlx5_flow_dv *dv;
struct mlx5_flow *dev_flow;
if (!flow)
return;
LIST_FOREACH(dev_flow, &flow->dev_flows, next) {
dv = &dev_flow->dv;
if (dv->flow) {
claim_zero(mlx5_glue->dv_destroy_flow(dv->flow));
dv->flow = NULL;
}
if (dv->hrxq) {
if (flow->actions & MLX5_FLOW_ACTION_DROP)
mlx5_hrxq_drop_release(dev);
else
mlx5_hrxq_release(dev, dv->hrxq);
dv->hrxq = NULL;
}
}
}
/**
* Remove the flow from the NIC and the memory.
*
* @param[in] dev
* Pointer to the Ethernet device structure.
* @param[in, out] flow
* Pointer to flow structure.
*/
static void
flow_dv_destroy(struct rte_eth_dev *dev, struct rte_flow *flow)
{
struct mlx5_flow *dev_flow;
if (!flow)
return;
flow_dv_remove(dev, flow);
if (flow->counter) {
flow_dv_counter_release(flow->counter);
flow->counter = NULL;
}
if (flow->tag_resource) {
flow_dv_tag_release(dev, flow->tag_resource);
flow->tag_resource = NULL;
}
while (!LIST_EMPTY(&flow->dev_flows)) {
dev_flow = LIST_FIRST(&flow->dev_flows);
LIST_REMOVE(dev_flow, next);
if (dev_flow->dv.matcher)
flow_dv_matcher_release(dev, dev_flow);
if (dev_flow->dv.encap_decap)
flow_dv_encap_decap_resource_release(dev_flow);
if (dev_flow->dv.modify_hdr)
flow_dv_modify_hdr_resource_release(dev_flow);
if (dev_flow->dv.jump)
flow_dv_jump_tbl_resource_release(dev_flow);
rte_free(dev_flow);
}
}
/**
* Query a dv flow rule for its statistics via devx.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] flow
* Pointer to the sub flow.
* @param[out] data
* data retrieved by the query.
* @param[out] error
* Perform verbose error reporting if not NULL.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
flow_dv_query_count(struct rte_eth_dev *dev, struct rte_flow *flow,
void *data, struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct rte_flow_query_count *qc = data;
uint64_t pkts = 0;
uint64_t bytes = 0;
int err;
if (!priv->config.devx)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL,
"counters are not supported");
if (flow->counter) {
err = mlx5_devx_cmd_flow_counter_query
(flow->counter->dcs,
qc->reset, &pkts, &bytes);
if (err)
return rte_flow_error_set
(error, err,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL,
"cannot read counters");
qc->hits_set = 1;
qc->bytes_set = 1;
qc->hits = pkts - flow->counter->hits;
qc->bytes = bytes - flow->counter->bytes;
if (qc->reset) {
flow->counter->hits = pkts;
flow->counter->bytes = bytes;
}
return 0;
}
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL,
"counters are not available");
}
/**
* Query a flow.
*
* @see rte_flow_query()
* @see rte_flow_ops
*/
static int
flow_dv_query(struct rte_eth_dev *dev,
struct rte_flow *flow __rte_unused,
const struct rte_flow_action *actions __rte_unused,
void *data __rte_unused,
struct rte_flow_error *error __rte_unused)
{
int ret = -EINVAL;
for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
switch (actions->type) {
case RTE_FLOW_ACTION_TYPE_VOID:
break;
case RTE_FLOW_ACTION_TYPE_COUNT:
ret = flow_dv_query_count(dev, flow, data, error);
break;
default:
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION,
actions,
"action not supported");
}
}
return ret;
}
/*
* Mutex-protected thunk to flow_dv_translate().
*/
static int
flow_d_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)
{
int ret;
flow_d_shared_lock(dev);
ret = flow_dv_translate(dev, dev_flow, attr, items, actions, error);
flow_d_shared_unlock(dev);
return ret;
}
/*
* Mutex-protected thunk to flow_dv_apply().
*/
static int
flow_d_apply(struct rte_eth_dev *dev,
struct rte_flow *flow,
struct rte_flow_error *error)
{
int ret;
flow_d_shared_lock(dev);
ret = flow_dv_apply(dev, flow, error);
flow_d_shared_unlock(dev);
return ret;
}
/*
* Mutex-protected thunk to flow_dv_remove().
*/
static void
flow_d_remove(struct rte_eth_dev *dev, struct rte_flow *flow)
{
flow_d_shared_lock(dev);
flow_dv_remove(dev, flow);
flow_d_shared_unlock(dev);
}
/*
* Mutex-protected thunk to flow_dv_destroy().
*/
static void
flow_d_destroy(struct rte_eth_dev *dev, struct rte_flow *flow)
{
flow_d_shared_lock(dev);
flow_dv_destroy(dev, flow);
flow_d_shared_unlock(dev);
}
const struct mlx5_flow_driver_ops mlx5_flow_dv_drv_ops = {
.validate = flow_dv_validate,
.prepare = flow_dv_prepare,
.translate = flow_d_translate,
.apply = flow_d_apply,
.remove = flow_d_remove,
.destroy = flow_d_destroy,
.query = flow_dv_query,
};
#endif /* HAVE_IBV_FLOW_DV_SUPPORT */
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