forked from kevintraynor/dpdk-stable-queue-1811
/
mlx5_flow_dv.c
8284 lines (7965 loc) · 238 KB
/
mlx5_flow_dv.c
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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>
#include <unistd.h>
/* Verbs header. */
/* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */
#ifdef PEDANTIC
#pragma GCC diagnostic ignored "-Wpedantic"
#endif
#include <infiniband/verbs.h>
#ifdef PEDANTIC
#pragma GCC diagnostic error "-Wpedantic"
#endif
#include <rte_common.h>
#include <rte_ether.h>
#include <rte_ethdev_driver.h>
#include <rte_flow.h>
#include <rte_flow_driver.h>
#include <rte_malloc.h>
#include <rte_ip.h>
#include <rte_gre.h>
#include <rte_vxlan.h>
#include "mlx5.h"
#include "mlx5_defs.h"
#include "mlx5_glue.h"
#include "mlx5_flow.h"
#include "mlx5_prm.h"
#include "mlx5_rxtx.h"
#ifdef HAVE_IBV_FLOW_DV_SUPPORT
#ifndef HAVE_IBV_FLOW_DEVX_COUNTERS
#define MLX5DV_FLOW_ACTION_COUNTERS_DEVX 0
#endif
#ifndef HAVE_MLX5DV_DR_ESWITCH
#ifndef MLX5DV_FLOW_TABLE_TYPE_FDB
#define MLX5DV_FLOW_TABLE_TYPE_FDB 0
#endif
#endif
#ifndef HAVE_MLX5DV_DR
#define MLX5DV_DR_ACTION_FLAGS_ROOT_LEVEL 1
#endif
/* VLAN header definitions */
#define MLX5DV_FLOW_VLAN_PCP_SHIFT 13
#define MLX5DV_FLOW_VLAN_PCP_MASK (0x7 << MLX5DV_FLOW_VLAN_PCP_SHIFT)
#define MLX5DV_FLOW_VLAN_VID_MASK 0x0fff
#define MLX5DV_FLOW_VLAN_PCP_MASK_BE RTE_BE16(MLX5DV_FLOW_VLAN_PCP_MASK)
#define MLX5DV_FLOW_VLAN_VID_MASK_BE RTE_BE16(MLX5DV_FLOW_VLAN_VID_MASK)
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;
}
/**
* Convert rte_mtr_color to mlx5 color.
*
* @param[in] rcol
* rte_mtr_color.
*
* @return
* mlx5 color.
*/
static int
rte_col_2_mlx5_col(enum rte_color rcol)
{
switch (rcol) {
case RTE_COLOR_GREEN:
return MLX5_FLOW_COLOR_GREEN;
case RTE_COLOR_YELLOW:
return MLX5_FLOW_COLOR_YELLOW;
case RTE_COLOR_RED:
return MLX5_FLOW_COLOR_RED;
default:
break;
}
return MLX5_FLOW_COLOR_UNDEFINED;
}
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_vlan_out_first_vid[] = {
/* Size in bits !!! */
{12, 0, MLX5_MODI_OUT_FIRST_VID},
{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},
{4, 4, MLX5_MODI_OUT_TCP_SEQ_NUM},
{4, 8, MLX5_MODI_OUT_TCP_ACK_NUM},
{0, 0, 0},
};
static void
mlx5_flow_tunnel_ip_check(const struct rte_flow_item *item __rte_unused,
uint8_t next_protocol, uint64_t *item_flags,
int *tunnel)
{
assert(item->type == RTE_FLOW_ITEM_TYPE_IPV4 ||
item->type == RTE_FLOW_ITEM_TYPE_IPV6);
if (next_protocol == IPPROTO_IPIP) {
*item_flags |= MLX5_FLOW_LAYER_IPIP;
*tunnel = 1;
}
if (next_protocol == IPPROTO_IPV6) {
*item_flags |= MLX5_FLOW_LAYER_IPV6_ENCAP;
*tunnel = 1;
}
}
/**
* 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_dv_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_dv_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;
}
}
/* Update VLAN's VID/PCP based on input rte_flow_action.
*
* @param[in] action
* Pointer to struct rte_flow_action.
* @param[out] vlan
* Pointer to struct rte_vlan_hdr.
*/
static void
mlx5_update_vlan_vid_pcp(const struct rte_flow_action *action,
struct rte_vlan_hdr *vlan)
{
uint16_t vlan_tci;
if (action->type == RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP) {
vlan_tci =
((const struct rte_flow_action_of_set_vlan_pcp *)
action->conf)->vlan_pcp;
vlan_tci = vlan_tci << MLX5DV_FLOW_VLAN_PCP_SHIFT;
vlan->vlan_tci &= ~MLX5DV_FLOW_VLAN_PCP_MASK;
vlan->vlan_tci |= vlan_tci;
} else if (action->type == RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID) {
vlan->vlan_tci &= ~MLX5DV_FLOW_VLAN_VID_MASK;
vlan->vlan_tci |= rte_be_to_cpu_16
(((const struct rte_flow_action_of_set_vlan_vid *)
action->conf)->vlan_vid);
}
}
/**
* Fetch 1, 2, 3 or 4 byte field from the byte array
* and return as unsigned integer in host-endian format.
*
* @param[in] data
* Pointer to data array.
* @param[in] size
* Size of field to extract.
*
* @return
* converted field in host endian format.
*/
static inline uint32_t
flow_dv_fetch_field(const uint8_t *data, uint32_t size)
{
uint32_t ret;
switch (size) {
case 1:
ret = *data;
break;
case 2:
ret = rte_be_to_cpu_16(*(const unaligned_uint16_t *)data);
break;
case 3:
ret = rte_be_to_cpu_16(*(const unaligned_uint16_t *)data);
ret = (ret << 8) | *(data + sizeof(uint16_t));
break;
case 4:
ret = rte_be_to_cpu_32(*(const unaligned_uint32_t *)data);
break;
default:
assert(false);
ret = 0;
break;
}
return ret;
}
/**
* Convert modify-header action to DV specification.
*
* Data length of each action is determined by provided field description
* and the item mask. Data bit offset and width of each action is determined
* by provided item mask.
*
* @param[in] item
* Pointer to item specification.
* @param[in] field
* Pointer to field modification information.
* For MLX5_MODIFICATION_TYPE_SET specifies destination field.
* For MLX5_MODIFICATION_TYPE_ADD specifies destination field.
* For MLX5_MODIFICATION_TYPE_COPY specifies source field.
* @param[in] dcopy
* Destination field info for MLX5_MODIFICATION_TYPE_COPY in @type.
* Negative offset value sets the same offset as source offset.
* size field is ignored, value is taken from source field.
* @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 field_modify_info *dcopy,
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;
/*
* The item and mask are provided in big-endian format.
* The fields should be presented as in big-endian format either.
* Mask must be always present, it defines the actual field width.
*/
assert(item->mask);
assert(field->size);
do {
unsigned int size_b;
unsigned int off_b;
uint32_t mask;
uint32_t data;
if (i >= MLX5_MODIFY_NUM)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"too many items to modify");
/* Fetch variable byte size mask from the array. */
mask = flow_dv_fetch_field((const uint8_t *)item->mask +
field->offset, field->size);
if (!mask) {
++field;
continue;
}
/* Deduce actual data width in bits from mask value. */
off_b = rte_bsf32(mask);
size_b = sizeof(uint32_t) * CHAR_BIT -
off_b - __builtin_clz(mask);
assert(size_b);
size_b = size_b == sizeof(uint32_t) * CHAR_BIT ? 0 : size_b;
actions[i].action_type = type;
actions[i].field = field->id;
actions[i].offset = off_b;
actions[i].length = size_b;
/* Convert entire record to expected big-endian format. */
actions[i].data0 = rte_cpu_to_be_32(actions[i].data0);
if (type == MLX5_MODIFICATION_TYPE_COPY) {
assert(dcopy);
actions[i].dst_field = dcopy->id;
actions[i].dst_offset =
(int)dcopy->offset < 0 ? off_b : dcopy->offset;
/* Convert entire record to big-endian format. */
actions[i].data1 = rte_cpu_to_be_32(actions[i].data1);
} else {
assert(item->spec);
data = flow_dv_fetch_field((const uint8_t *)item->spec +
field->offset, field->size);
/* Shift out the trailing masked bits from data. */
data = (data & mask) >> off_b;
actions[i].data1 = rte_cpu_to_be_32(data);
}
++i;
++field;
} while (field->size);
resource->actions_num = i;
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, NULL, 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, NULL, 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(ð, 0, sizeof(eth));
memset(ð_mask, 0, sizeof(eth_mask));
if (action->type == RTE_FLOW_ACTION_TYPE_SET_MAC_SRC) {
memcpy(ð.src.addr_bytes, &conf->mac_addr,
sizeof(eth.src.addr_bytes));
memcpy(ð_mask.src.addr_bytes,
&rte_flow_item_eth_mask.src.addr_bytes,
sizeof(eth_mask.src.addr_bytes));
} else {
memcpy(ð.dst.addr_bytes, &conf->mac_addr,
sizeof(eth.dst.addr_bytes));
memcpy(ð_mask.dst.addr_bytes,
&rte_flow_item_eth_mask.dst.addr_bytes,
sizeof(eth_mask.dst.addr_bytes));
}
item.spec = ð
item.mask = ð_mask;
return flow_dv_convert_modify_action(&item, modify_eth, NULL, resource,
MLX5_MODIFICATION_TYPE_SET, error);
}
/**
* Convert modify-header set VLAN VID 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_vlan_vid
(struct mlx5_flow_dv_modify_hdr_resource *resource,
const struct rte_flow_action *action,
struct rte_flow_error *error)
{
const struct rte_flow_action_of_set_vlan_vid *conf =
(const struct rte_flow_action_of_set_vlan_vid *)(action->conf);
int i = resource->actions_num;
struct mlx5_modification_cmd *actions = &resource->actions[i];
struct field_modify_info *field = modify_vlan_out_first_vid;
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 = MLX5_MODIFICATION_TYPE_SET;
actions[i].field = field->id;
actions[i].length = field->size;
actions[i].offset = field->offset;
actions[i].data0 = rte_cpu_to_be_32(actions[i].data0);
actions[i].data1 = conf->vlan_vid;
actions[i].data1 = actions[i].data1 << 16;
resource->actions_num = ++i;
return 0;
}
/**
* 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, NULL, 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, NULL, 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, NULL, resource,
MLX5_MODIFICATION_TYPE_ADD, error);
}
/**
* Convert modify-header increment/decrement TCP Sequence number
* 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_tcp_seq
(struct mlx5_flow_dv_modify_hdr_resource *resource,
const struct rte_flow_action *action,
struct rte_flow_error *error)
{
const rte_be32_t *conf = (const rte_be32_t *)(action->conf);
uint64_t value = rte_be_to_cpu_32(*conf);
struct rte_flow_item item;
struct rte_flow_item_tcp tcp;
struct rte_flow_item_tcp tcp_mask;
memset(&tcp, 0, sizeof(tcp));
memset(&tcp_mask, 0, sizeof(tcp_mask));
if (action->type == RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ)
/*
* The HW has no decrement operation, only increment operation.
* To simulate decrement X from Y using increment operation
* we need to add UINT32_MAX X times to Y.
* Each adding of UINT32_MAX decrements Y by 1.
*/
value *= UINT32_MAX;
tcp.hdr.sent_seq = rte_cpu_to_be_32((uint32_t)value);
tcp_mask.hdr.sent_seq = RTE_BE32(UINT32_MAX);
item.type = RTE_FLOW_ITEM_TYPE_TCP;
item.spec = &tcp;
item.mask = &tcp_mask;
return flow_dv_convert_modify_action(&item, modify_tcp, NULL, resource,
MLX5_MODIFICATION_TYPE_ADD, error);
}
/**
* Convert modify-header increment/decrement TCP Acknowledgment number
* 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_tcp_ack
(struct mlx5_flow_dv_modify_hdr_resource *resource,
const struct rte_flow_action *action,
struct rte_flow_error *error)
{
const rte_be32_t *conf = (const rte_be32_t *)(action->conf);
uint64_t value = rte_be_to_cpu_32(*conf);
struct rte_flow_item item;
struct rte_flow_item_tcp tcp;
struct rte_flow_item_tcp tcp_mask;
memset(&tcp, 0, sizeof(tcp));
memset(&tcp_mask, 0, sizeof(tcp_mask));
if (action->type == RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK)
/*
* The HW has no decrement operation, only increment operation.
* To simulate decrement X from Y using increment operation
* we need to add UINT32_MAX X times to Y.
* Each adding of UINT32_MAX decrements Y by 1.
*/
value *= UINT32_MAX;
tcp.hdr.recv_ack = rte_cpu_to_be_32((uint32_t)value);
tcp_mask.hdr.recv_ack = RTE_BE32(UINT32_MAX);
item.type = RTE_FLOW_ITEM_TYPE_TCP;
item.spec = &tcp;
item.mask = &tcp_mask;
return flow_dv_convert_modify_action(&item, modify_tcp, NULL, resource,
MLX5_MODIFICATION_TYPE_ADD, error);
}
static enum mlx5_modification_field reg_to_field[] = {
[REG_NONE] = MLX5_MODI_OUT_NONE,
[REG_A] = MLX5_MODI_META_DATA_REG_A,
[REG_B] = MLX5_MODI_META_DATA_REG_B,
[REG_C_0] = MLX5_MODI_META_REG_C_0,
[REG_C_1] = MLX5_MODI_META_REG_C_1,
[REG_C_2] = MLX5_MODI_META_REG_C_2,
[REG_C_3] = MLX5_MODI_META_REG_C_3,
[REG_C_4] = MLX5_MODI_META_REG_C_4,
[REG_C_5] = MLX5_MODI_META_REG_C_5,
[REG_C_6] = MLX5_MODI_META_REG_C_6,
[REG_C_7] = MLX5_MODI_META_REG_C_7,
};
/**
* Convert register set 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_set_reg
(struct mlx5_flow_dv_modify_hdr_resource *resource,
const struct rte_flow_action *action,
struct rte_flow_error *error)
{
const struct mlx5_rte_flow_action_set_tag *conf = action->conf;
struct mlx5_modification_cmd *actions = resource->actions;
uint32_t i = resource->actions_num;
if (i >= MLX5_MODIFY_NUM)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"too many items to modify");
assert(conf->id != REG_NONE);
assert(conf->id < RTE_DIM(reg_to_field));
actions[i].action_type = MLX5_MODIFICATION_TYPE_SET;
actions[i].field = reg_to_field[conf->id];
actions[i].data0 = rte_cpu_to_be_32(actions[i].data0);
actions[i].data1 = rte_cpu_to_be_32(conf->data);
++i;
resource->actions_num = i;
if (!resource->actions_num)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, NULL,
"invalid modification flow item");
return 0;
}
/**
* Convert SET_TAG action to DV specification.
*
* @param[in] dev
* Pointer to the rte_eth_dev structure.
* @param[in,out] resource
* Pointer to the modify-header resource.
* @param[in] conf
* 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_set_tag
(struct rte_eth_dev *dev,
struct mlx5_flow_dv_modify_hdr_resource *resource,
const struct rte_flow_action_set_tag *conf,
struct rte_flow_error *error)
{
rte_be32_t data = rte_cpu_to_be_32(conf->data);
rte_be32_t mask = rte_cpu_to_be_32(conf->mask);
struct rte_flow_item item = {
.spec = &data,
.mask = &mask,
};
struct field_modify_info reg_c_x[] = {
[1] = {0, 0, 0},
};
enum mlx5_modification_field reg_type;
int ret;
ret = mlx5_flow_get_reg_id(dev, MLX5_APP_TAG, conf->index, error);
if (ret < 0)
return ret;
assert(ret != REG_NONE);
assert((unsigned int)ret < RTE_DIM(reg_to_field));
reg_type = reg_to_field[ret];
assert(reg_type > 0);
reg_c_x[0] = (struct field_modify_info){4, 0, reg_type};
return flow_dv_convert_modify_action(&item, reg_c_x, NULL, resource,
MLX5_MODIFICATION_TYPE_SET, error);
}
/**
* Convert internal COPY_REG action to DV specification.
*
* @param[in] dev
* Pointer to the rte_eth_dev structure.
* @param[in,out] res
* 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_copy_mreg(struct rte_eth_dev *dev,
struct mlx5_flow_dv_modify_hdr_resource *res,
const struct rte_flow_action *action,
struct rte_flow_error *error)
{
const struct mlx5_flow_action_copy_mreg *conf = action->conf;
rte_be32_t mask = RTE_BE32(UINT32_MAX);
struct rte_flow_item item = {
.spec = NULL,
.mask = &mask,
};
struct field_modify_info reg_src[] = {
{4, 0, reg_to_field[conf->src]},
{0, 0, 0},
};
struct field_modify_info reg_dst = {
.offset = 0,
.id = reg_to_field[conf->dst],
};
/* Adjust reg_c[0] usage according to reported mask. */
if (conf->dst == REG_C_0 || conf->src == REG_C_0) {
struct mlx5_priv *priv = dev->data->dev_private;
uint32_t reg_c0 = priv->sh->dv_regc0_mask;