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numam-dpdk/drivers/net/hns3/hns3_fdir.c
Chengwen Feng 1bdcca8006 net/hns3: fix flow director lock 
Currently, the fdir lock was used to protect concurrent access in
multiple processes, it has the following problems:
1) Lack of protection for fdir reset recover.
2) Only part of data is protected, eg. the filterlist is not protected.

We use the following scheme:
1) Del the fdir lock.
2) Add a flow lock and provides rte flow driver ops API-level
   protection.
3) Declare support RTE_ETH_DEV_FLOW_OPS_THREAD_SAFE.

Fixes: fcba820d9b ("net/hns3: support flow director")
Cc: stable@dpdk.org

Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
2021-04-20 02:40:43 +02:00

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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2018-2021 HiSilicon Limited.
*/
#include <ethdev_driver.h>
#include <rte_hash.h>
#include <rte_hash_crc.h>
#include <rte_io.h>
#include <rte_malloc.h>
#include "hns3_ethdev.h"
#include "hns3_logs.h"
#define HNS3_VLAN_TAG_TYPE_NONE 0
#define HNS3_VLAN_TAG_TYPE_TAG2 1
#define HNS3_VLAN_TAG_TYPE_TAG1 2
#define HNS3_VLAN_TAG_TYPE_TAG1_2 3
#define HNS3_PF_ID_S 0
#define HNS3_PF_ID_M GENMASK(2, 0)
#define HNS3_VF_ID_S 3
#define HNS3_VF_ID_M GENMASK(10, 3)
#define HNS3_PORT_TYPE_B 11
#define HNS3_NETWORK_PORT_ID_S 0
#define HNS3_NETWORK_PORT_ID_M GENMASK(3, 0)
#define HNS3_FD_EPORT_SW_EN_B 0
#define HNS3_FD_AD_DATA_S 32
#define HNS3_FD_AD_DROP_B 0
#define HNS3_FD_AD_DIRECT_QID_B 1
#define HNS3_FD_AD_QID_S 2
#define HNS3_FD_AD_QID_M GENMASK(11, 2)
#define HNS3_FD_AD_USE_COUNTER_B 12
#define HNS3_FD_AD_COUNTER_NUM_S 13
#define HNS3_FD_AD_COUNTER_NUM_M GENMASK(19, 13)
#define HNS3_FD_AD_NXT_STEP_B 20
#define HNS3_FD_AD_NXT_KEY_S 21
#define HNS3_FD_AD_NXT_KEY_M GENMASK(25, 21)
#define HNS3_FD_AD_WR_RULE_ID_B 0
#define HNS3_FD_AD_RULE_ID_S 1
#define HNS3_FD_AD_RULE_ID_M GENMASK(12, 1)
#define HNS3_FD_AD_QUEUE_REGION_EN_B 16
#define HNS3_FD_AD_QUEUE_REGION_SIZE_S 17
#define HNS3_FD_AD_QUEUE_REGION_SIZE_M GENMASK(20, 17)
#define HNS3_FD_AD_COUNTER_HIGH_BIT 7
#define HNS3_FD_AD_COUNTER_HIGH_BIT_B 26
#define HNS3_FD_AD_QUEUE_ID_HIGH_BIT 10
#define HNS3_FD_AD_QUEUE_ID_HIGH_BIT_B 21
enum HNS3_PORT_TYPE {
HOST_PORT,
NETWORK_PORT
};
enum HNS3_FD_MODE {
HNS3_FD_MODE_DEPTH_2K_WIDTH_400B_STAGE_1,
HNS3_FD_MODE_DEPTH_1K_WIDTH_400B_STAGE_2,
HNS3_FD_MODE_DEPTH_4K_WIDTH_200B_STAGE_1,
HNS3_FD_MODE_DEPTH_2K_WIDTH_200B_STAGE_2,
};
enum HNS3_FD_KEY_TYPE {
HNS3_FD_KEY_BASE_ON_PTYPE,
HNS3_FD_KEY_BASE_ON_TUPLE,
};
enum HNS3_FD_META_DATA {
PACKET_TYPE_ID,
IP_FRAGEMENT,
ROCE_TYPE,
NEXT_KEY,
VLAN_NUMBER,
SRC_VPORT,
DST_VPORT,
TUNNEL_PACKET,
MAX_META_DATA,
};
struct key_info {
uint8_t key_type;
uint8_t key_length;
};
static const struct key_info meta_data_key_info[] = {
{PACKET_TYPE_ID, 6},
{IP_FRAGEMENT, 1},
{ROCE_TYPE, 1},
{NEXT_KEY, 5},
{VLAN_NUMBER, 2},
{SRC_VPORT, 12},
{DST_VPORT, 12},
{TUNNEL_PACKET, 1},
};
static const struct key_info tuple_key_info[] = {
{OUTER_DST_MAC, 48},
{OUTER_SRC_MAC, 48},
{OUTER_VLAN_TAG_FST, 16},
{OUTER_VLAN_TAG_SEC, 16},
{OUTER_ETH_TYPE, 16},
{OUTER_L2_RSV, 16},
{OUTER_IP_TOS, 8},
{OUTER_IP_PROTO, 8},
{OUTER_SRC_IP, 32},
{OUTER_DST_IP, 32},
{OUTER_L3_RSV, 16},
{OUTER_SRC_PORT, 16},
{OUTER_DST_PORT, 16},
{OUTER_L4_RSV, 32},
{OUTER_TUN_VNI, 24},
{OUTER_TUN_FLOW_ID, 8},
{INNER_DST_MAC, 48},
{INNER_SRC_MAC, 48},
{INNER_VLAN_TAG1, 16},
{INNER_VLAN_TAG2, 16},
{INNER_ETH_TYPE, 16},
{INNER_L2_RSV, 16},
{INNER_IP_TOS, 8},
{INNER_IP_PROTO, 8},
{INNER_SRC_IP, 32},
{INNER_DST_IP, 32},
{INNER_L3_RSV, 16},
{INNER_SRC_PORT, 16},
{INNER_DST_PORT, 16},
{INNER_SCTP_TAG, 32},
};
#define MAX_KEY_LENGTH 400
#define MAX_200B_KEY_LENGTH 200
#define MAX_META_DATA_LENGTH 16
#define MAX_KEY_DWORDS DIV_ROUND_UP(MAX_KEY_LENGTH / HNS3_BITS_PER_BYTE, 4)
#define MAX_KEY_BYTES (MAX_KEY_DWORDS * 4)
enum HNS3_FD_PACKET_TYPE {
NIC_PACKET,
ROCE_PACKET,
};
/* For each bit of TCAM entry, it uses a pair of 'x' and
* 'y' to indicate which value to match, like below:
* ----------------------------------
* | bit x | bit y | search value |
* ----------------------------------
* | 0 | 0 | always hit |
* ----------------------------------
* | 1 | 0 | match '0' |
* ----------------------------------
* | 0 | 1 | match '1' |
* ----------------------------------
* | 1 | 1 | invalid |
* ----------------------------------
* Then for input key(k) and mask(v), we can calculate the value by
* the formulae:
* x = (~k) & v
* y = k & v
*/
#define calc_x(x, k, v) ((x) = (~(k) & (v)))
#define calc_y(y, k, v) ((y) = ((k) & (v)))
struct hns3_fd_tcam_config_1_cmd {
uint8_t stage;
uint8_t xy_sel;
uint8_t port_info;
uint8_t rsv1[1];
rte_le32_t index;
uint8_t entry_vld;
uint8_t rsv2[7];
uint8_t tcam_data[8];
};
struct hns3_fd_tcam_config_2_cmd {
uint8_t tcam_data[24];
};
struct hns3_fd_tcam_config_3_cmd {
uint8_t tcam_data[20];
uint8_t rsv[4];
};
struct hns3_get_fd_mode_cmd {
uint8_t mode;
uint8_t enable;
uint8_t rsv[22];
};
struct hns3_get_fd_allocation_cmd {
rte_le32_t stage1_entry_num;
rte_le32_t stage2_entry_num;
rte_le16_t stage1_counter_num;
rte_le16_t stage2_counter_num;
uint8_t rsv[12];
};
struct hns3_set_fd_key_config_cmd {
uint8_t stage;
uint8_t key_select;
uint8_t inner_sipv6_word_en;
uint8_t inner_dipv6_word_en;
uint8_t outer_sipv6_word_en;
uint8_t outer_dipv6_word_en;
uint8_t rsv1[2];
rte_le32_t tuple_mask;
rte_le32_t meta_data_mask;
uint8_t rsv2[8];
};
struct hns3_fd_ad_config_cmd {
uint8_t stage;
uint8_t rsv1[3];
rte_le32_t index;
rte_le64_t ad_data;
uint8_t rsv2[8];
};
struct hns3_fd_get_cnt_cmd {
uint8_t stage;
uint8_t rsv1[3];
rte_le16_t index;
uint8_t rsv2[2];
rte_le64_t value;
uint8_t rsv3[8];
};
static int hns3_get_fd_mode(struct hns3_hw *hw, uint8_t *fd_mode)
{
struct hns3_get_fd_mode_cmd *req;
struct hns3_cmd_desc desc;
int ret;
hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_FD_MODE_CTRL, true);
req = (struct hns3_get_fd_mode_cmd *)desc.data;
ret = hns3_cmd_send(hw, &desc, 1);
if (ret) {
hns3_err(hw, "Get fd mode fail, ret=%d", ret);
return ret;
}
*fd_mode = req->mode;
return ret;
}
static int hns3_get_fd_allocation(struct hns3_hw *hw,
uint32_t *stage1_entry_num,
uint32_t *stage2_entry_num,
uint16_t *stage1_counter_num,
uint16_t *stage2_counter_num)
{
struct hns3_get_fd_allocation_cmd *req;
struct hns3_cmd_desc desc;
int ret;
hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_FD_GET_ALLOCATION, true);
req = (struct hns3_get_fd_allocation_cmd *)desc.data;
ret = hns3_cmd_send(hw, &desc, 1);
if (ret) {
hns3_err(hw, "Query fd allocation fail, ret=%d", ret);
return ret;
}
*stage1_entry_num = rte_le_to_cpu_32(req->stage1_entry_num);
*stage2_entry_num = rte_le_to_cpu_32(req->stage2_entry_num);
*stage1_counter_num = rte_le_to_cpu_16(req->stage1_counter_num);
*stage2_counter_num = rte_le_to_cpu_16(req->stage2_counter_num);
return ret;
}
static int hns3_set_fd_key_config(struct hns3_adapter *hns)
{
struct hns3_set_fd_key_config_cmd *req;
struct hns3_fd_key_cfg *key_cfg;
struct hns3_pf *pf = &hns->pf;
struct hns3_hw *hw = &hns->hw;
struct hns3_cmd_desc desc;
int ret;
hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_FD_KEY_CONFIG, false);
req = (struct hns3_set_fd_key_config_cmd *)desc.data;
key_cfg = &pf->fdir.fd_cfg.key_cfg[HNS3_FD_STAGE_1];
req->stage = HNS3_FD_STAGE_1;
req->key_select = key_cfg->key_sel;
req->inner_sipv6_word_en = key_cfg->inner_sipv6_word_en;
req->inner_dipv6_word_en = key_cfg->inner_dipv6_word_en;
req->outer_sipv6_word_en = key_cfg->outer_sipv6_word_en;
req->outer_dipv6_word_en = key_cfg->outer_dipv6_word_en;
req->tuple_mask = rte_cpu_to_le_32(~key_cfg->tuple_active);
req->meta_data_mask = rte_cpu_to_le_32(~key_cfg->meta_data_active);
ret = hns3_cmd_send(hw, &desc, 1);
if (ret)
hns3_err(hw, "Set fd key fail, ret=%d", ret);
return ret;
}
int hns3_init_fd_config(struct hns3_adapter *hns)
{
struct hns3_pf *pf = &hns->pf;
struct hns3_hw *hw = &hns->hw;
struct hns3_fd_key_cfg *key_cfg;
int ret;
ret = hns3_get_fd_mode(hw, &pf->fdir.fd_cfg.fd_mode);
if (ret)
return ret;
switch (pf->fdir.fd_cfg.fd_mode) {
case HNS3_FD_MODE_DEPTH_2K_WIDTH_400B_STAGE_1:
pf->fdir.fd_cfg.max_key_length = MAX_KEY_LENGTH;
break;
case HNS3_FD_MODE_DEPTH_4K_WIDTH_200B_STAGE_1:
pf->fdir.fd_cfg.max_key_length = MAX_200B_KEY_LENGTH;
hns3_warn(hw, "Unsupported tunnel filter in 4K*200Bit");
break;
default:
hns3_err(hw, "Unsupported flow director mode %u",
pf->fdir.fd_cfg.fd_mode);
return -EOPNOTSUPP;
}
key_cfg = &pf->fdir.fd_cfg.key_cfg[HNS3_FD_STAGE_1];
key_cfg->key_sel = HNS3_FD_KEY_BASE_ON_TUPLE;
key_cfg->inner_sipv6_word_en = IPV6_ADDR_WORD_MASK;
key_cfg->inner_dipv6_word_en = IPV6_ADDR_WORD_MASK;
key_cfg->outer_sipv6_word_en = 0;
key_cfg->outer_dipv6_word_en = 0;
key_cfg->tuple_active = BIT(INNER_VLAN_TAG1) | BIT(INNER_ETH_TYPE) |
BIT(INNER_IP_PROTO) | BIT(INNER_IP_TOS) |
BIT(INNER_SRC_IP) | BIT(INNER_DST_IP) |
BIT(INNER_SRC_PORT) | BIT(INNER_DST_PORT);
/* If use max 400bit key, we can support tuples for ether type */
if (pf->fdir.fd_cfg.max_key_length == MAX_KEY_LENGTH) {
key_cfg->tuple_active |=
BIT(INNER_DST_MAC) | BIT(INNER_SRC_MAC) |
BIT(OUTER_SRC_PORT) | BIT(INNER_SCTP_TAG) |
BIT(OUTER_DST_PORT) | BIT(INNER_VLAN_TAG2) |
BIT(OUTER_TUN_VNI) | BIT(OUTER_TUN_FLOW_ID) |
BIT(OUTER_ETH_TYPE) | BIT(OUTER_IP_PROTO);
}
/* roce_type is used to filter roce frames
* dst_vport is used to specify the rule
*/
key_cfg->meta_data_active = BIT(DST_VPORT) | BIT(TUNNEL_PACKET) |
BIT(VLAN_NUMBER);
ret = hns3_get_fd_allocation(hw,
&pf->fdir.fd_cfg.rule_num[HNS3_FD_STAGE_1],
&pf->fdir.fd_cfg.rule_num[HNS3_FD_STAGE_2],
&pf->fdir.fd_cfg.cnt_num[HNS3_FD_STAGE_1],
&pf->fdir.fd_cfg.cnt_num[HNS3_FD_STAGE_2]);
if (ret)
return ret;
return hns3_set_fd_key_config(hns);
}
static int hns3_fd_tcam_config(struct hns3_hw *hw, bool sel_x, int loc,
uint8_t *key, bool is_add)
{
#define FD_TCAM_CMD_NUM 3
struct hns3_fd_tcam_config_1_cmd *req1;
struct hns3_fd_tcam_config_2_cmd *req2;
struct hns3_fd_tcam_config_3_cmd *req3;
struct hns3_cmd_desc desc[FD_TCAM_CMD_NUM];
int len;
int ret;
hns3_cmd_setup_basic_desc(&desc[0], HNS3_OPC_FD_TCAM_OP, false);
desc[0].flag |= rte_cpu_to_le_16(HNS3_CMD_FLAG_NEXT);
hns3_cmd_setup_basic_desc(&desc[1], HNS3_OPC_FD_TCAM_OP, false);
desc[1].flag |= rte_cpu_to_le_16(HNS3_CMD_FLAG_NEXT);
hns3_cmd_setup_basic_desc(&desc[2], HNS3_OPC_FD_TCAM_OP, false);
req1 = (struct hns3_fd_tcam_config_1_cmd *)desc[0].data;
req2 = (struct hns3_fd_tcam_config_2_cmd *)desc[1].data;
req3 = (struct hns3_fd_tcam_config_3_cmd *)desc[2].data;
req1->stage = HNS3_FD_STAGE_1;
req1->xy_sel = sel_x ? 1 : 0;
hns3_set_bit(req1->port_info, HNS3_FD_EPORT_SW_EN_B, 0);
req1->index = rte_cpu_to_le_32(loc);
req1->entry_vld = sel_x ? is_add : 0;
if (key) {
len = sizeof(req1->tcam_data);
memcpy(req1->tcam_data, key, len);
key += len;
len = sizeof(req2->tcam_data);
memcpy(req2->tcam_data, key, len);
key += len;
len = sizeof(req3->tcam_data);
memcpy(req3->tcam_data, key, len);
}
ret = hns3_cmd_send(hw, desc, FD_TCAM_CMD_NUM);
if (ret)
hns3_err(hw, "Config tcam key fail, ret=%d loc=%d add=%d",
ret, loc, is_add);
return ret;
}
static int hns3_fd_ad_config(struct hns3_hw *hw, int loc,
struct hns3_fd_ad_data *action)
{
struct hns3_fd_ad_config_cmd *req;
struct hns3_cmd_desc desc;
uint64_t ad_data = 0;
int ret;
hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_FD_AD_OP, false);
req = (struct hns3_fd_ad_config_cmd *)desc.data;
req->index = rte_cpu_to_le_32(loc);
req->stage = HNS3_FD_STAGE_1;
hns3_set_bit(ad_data, HNS3_FD_AD_WR_RULE_ID_B,
action->write_rule_id_to_bd);
hns3_set_field(ad_data, HNS3_FD_AD_RULE_ID_M, HNS3_FD_AD_RULE_ID_S,
action->rule_id);
if (action->nb_queues > 1) {
hns3_set_bit(ad_data, HNS3_FD_AD_QUEUE_REGION_EN_B, 1);
hns3_set_field(ad_data, HNS3_FD_AD_QUEUE_REGION_SIZE_M,
HNS3_FD_AD_QUEUE_REGION_SIZE_S,
rte_log2_u32(action->nb_queues));
}
/* set extend bit if counter_id is in [128 ~ 255] */
if (action->counter_id & BIT(HNS3_FD_AD_COUNTER_HIGH_BIT))
hns3_set_bit(ad_data, HNS3_FD_AD_COUNTER_HIGH_BIT_B, 1);
/* set extend bit if queue id > 1024 */
if (action->queue_id & BIT(HNS3_FD_AD_QUEUE_ID_HIGH_BIT))
hns3_set_bit(ad_data, HNS3_FD_AD_QUEUE_ID_HIGH_BIT_B, 1);
ad_data <<= HNS3_FD_AD_DATA_S;
hns3_set_bit(ad_data, HNS3_FD_AD_DROP_B, action->drop_packet);
if (action->nb_queues == 1)
hns3_set_bit(ad_data, HNS3_FD_AD_DIRECT_QID_B, 1);
hns3_set_field(ad_data, HNS3_FD_AD_QID_M, HNS3_FD_AD_QID_S,
action->queue_id);
hns3_set_bit(ad_data, HNS3_FD_AD_USE_COUNTER_B, action->use_counter);
hns3_set_field(ad_data, HNS3_FD_AD_COUNTER_NUM_M,
HNS3_FD_AD_COUNTER_NUM_S, action->counter_id);
hns3_set_bit(ad_data, HNS3_FD_AD_NXT_STEP_B, action->use_next_stage);
hns3_set_field(ad_data, HNS3_FD_AD_NXT_KEY_M, HNS3_FD_AD_NXT_KEY_S,
action->next_input_key);
req->ad_data = rte_cpu_to_le_64(ad_data);
ret = hns3_cmd_send(hw, &desc, 1);
if (ret)
hns3_err(hw, "Config fd ad fail, ret=%d loc=%d", ret, loc);
return ret;
}
static inline void hns3_fd_convert_mac(uint8_t *key, uint8_t *mask,
uint8_t *mac_x, uint8_t *mac_y)
{
uint8_t tmp;
int i;
for (i = 0; i < RTE_ETHER_ADDR_LEN; i++) {
tmp = RTE_ETHER_ADDR_LEN - 1 - i;
calc_x(mac_x[tmp], key[i], mask[i]);
calc_y(mac_y[tmp], key[i], mask[i]);
}
}
static void hns3_fd_convert_int16(uint32_t tuple, struct hns3_fdir_rule *rule,
uint8_t *val_x, uint8_t *val_y)
{
uint16_t tmp_x_s;
uint16_t tmp_y_s;
uint16_t mask;
uint16_t key;
switch (tuple) {
case OUTER_SRC_PORT:
key = rule->key_conf.spec.outer_src_port;
mask = rule->key_conf.mask.outer_src_port;
break;
case OUTER_DST_PORT:
key = rule->key_conf.spec.tunnel_type;
mask = rule->key_conf.mask.tunnel_type;
break;
case OUTER_ETH_TYPE:
key = rule->key_conf.spec.outer_ether_type;
mask = rule->key_conf.mask.outer_ether_type;
break;
case INNER_SRC_PORT:
key = rule->key_conf.spec.src_port;
mask = rule->key_conf.mask.src_port;
break;
case INNER_DST_PORT:
key = rule->key_conf.spec.dst_port;
mask = rule->key_conf.mask.dst_port;
break;
case INNER_VLAN_TAG1:
key = rule->key_conf.spec.vlan_tag1;
mask = rule->key_conf.mask.vlan_tag1;
break;
case INNER_VLAN_TAG2:
key = rule->key_conf.spec.vlan_tag2;
mask = rule->key_conf.mask.vlan_tag2;
break;
default:
/* INNER_ETH_TYPE: */
key = rule->key_conf.spec.ether_type;
mask = rule->key_conf.mask.ether_type;
break;
}
calc_x(tmp_x_s, key, mask);
calc_y(tmp_y_s, key, mask);
val_x[0] = rte_cpu_to_le_16(tmp_x_s) & 0xFF;
val_x[1] = rte_cpu_to_le_16(tmp_x_s) >> HNS3_BITS_PER_BYTE;
val_y[0] = rte_cpu_to_le_16(tmp_y_s) & 0xFF;
val_y[1] = rte_cpu_to_le_16(tmp_y_s) >> HNS3_BITS_PER_BYTE;
}
static inline void hns3_fd_convert_int32(uint32_t key, uint32_t mask,
uint8_t *val_x, uint8_t *val_y)
{
uint32_t tmp_x_l;
uint32_t tmp_y_l;
calc_x(tmp_x_l, key, mask);
calc_y(tmp_y_l, key, mask);
memcpy(val_x, &tmp_x_l, sizeof(tmp_x_l));
memcpy(val_y, &tmp_y_l, sizeof(tmp_y_l));
}
static bool hns3_fd_convert_tuple(struct hns3_hw *hw,
uint32_t tuple, uint8_t *key_x,
uint8_t *key_y, struct hns3_fdir_rule *rule)
{
struct hns3_fdir_key_conf *key_conf;
int tmp;
int i;
if ((rule->input_set & BIT(tuple)) == 0)
return true;
key_conf = &rule->key_conf;
switch (tuple) {
case INNER_DST_MAC:
hns3_fd_convert_mac(key_conf->spec.dst_mac,
key_conf->mask.dst_mac, key_x, key_y);
break;
case INNER_SRC_MAC:
hns3_fd_convert_mac(key_conf->spec.src_mac,
key_conf->mask.src_mac, key_x, key_y);
break;
case OUTER_SRC_PORT:
case OUTER_DST_PORT:
case OUTER_ETH_TYPE:
case INNER_SRC_PORT:
case INNER_DST_PORT:
case INNER_VLAN_TAG1:
case INNER_VLAN_TAG2:
case INNER_ETH_TYPE:
hns3_fd_convert_int16(tuple, rule, key_x, key_y);
break;
case INNER_SRC_IP:
hns3_fd_convert_int32(key_conf->spec.src_ip[IP_ADDR_KEY_ID],
key_conf->mask.src_ip[IP_ADDR_KEY_ID],
key_x, key_y);
break;
case INNER_DST_IP:
hns3_fd_convert_int32(key_conf->spec.dst_ip[IP_ADDR_KEY_ID],
key_conf->mask.dst_ip[IP_ADDR_KEY_ID],
key_x, key_y);
break;
case INNER_SCTP_TAG:
hns3_fd_convert_int32(key_conf->spec.sctp_tag,
key_conf->mask.sctp_tag, key_x, key_y);
break;
case OUTER_TUN_VNI:
for (i = 0; i < VNI_OR_TNI_LEN; i++) {
tmp = VNI_OR_TNI_LEN - 1 - i;
calc_x(key_x[tmp],
key_conf->spec.outer_tun_vni[i],
key_conf->mask.outer_tun_vni[i]);
calc_y(key_y[tmp],
key_conf->spec.outer_tun_vni[i],
key_conf->mask.outer_tun_vni[i]);
}
break;
case OUTER_TUN_FLOW_ID:
calc_x(*key_x, key_conf->spec.outer_tun_flow_id,
key_conf->mask.outer_tun_flow_id);
calc_y(*key_y, key_conf->spec.outer_tun_flow_id,
key_conf->mask.outer_tun_flow_id);
break;
case INNER_IP_TOS:
calc_x(*key_x, key_conf->spec.ip_tos, key_conf->mask.ip_tos);
calc_y(*key_y, key_conf->spec.ip_tos, key_conf->mask.ip_tos);
break;
case OUTER_IP_PROTO:
calc_x(*key_x, key_conf->spec.outer_proto,
key_conf->mask.outer_proto);
calc_y(*key_y, key_conf->spec.outer_proto,
key_conf->mask.outer_proto);
break;
case INNER_IP_PROTO:
calc_x(*key_x, key_conf->spec.ip_proto,
key_conf->mask.ip_proto);
calc_y(*key_y, key_conf->spec.ip_proto,
key_conf->mask.ip_proto);
break;
default:
hns3_warn(hw, "not support tuple of (%u)", tuple);
break;
}
return true;
}
static uint32_t hns3_get_port_number(uint8_t pf_id, uint8_t vf_id)
{
uint32_t port_number = 0;
hns3_set_field(port_number, HNS3_PF_ID_M, HNS3_PF_ID_S, pf_id);
hns3_set_field(port_number, HNS3_VF_ID_M, HNS3_VF_ID_S, vf_id);
hns3_set_bit(port_number, HNS3_PORT_TYPE_B, HOST_PORT);
return port_number;
}
static void hns3_fd_convert_meta_data(struct hns3_fd_key_cfg *cfg,
uint8_t vf_id,
struct hns3_fdir_rule *rule,
uint8_t *key_x, uint8_t *key_y)
{
uint16_t meta_data = 0;
uint32_t port_number;
uint8_t cur_pos = 0;
uint8_t tuple_size;
uint8_t shift_bits;
uint32_t tmp_x;
uint32_t tmp_y;
uint8_t i;
for (i = 0; i < MAX_META_DATA; i++) {
if ((cfg->meta_data_active & BIT(i)) == 0)
continue;
tuple_size = meta_data_key_info[i].key_length;
if (i == TUNNEL_PACKET) {
hns3_set_bit(meta_data, cur_pos,
rule->key_conf.spec.tunnel_type ? 1 : 0);
cur_pos += tuple_size;
} else if (i == VLAN_NUMBER) {
uint32_t vlan_tag;
uint8_t vlan_num;
if (rule->key_conf.spec.tunnel_type == 0)
vlan_num = rule->key_conf.vlan_num;
else
vlan_num = rule->key_conf.outer_vlan_num;
if (vlan_num == 1)
vlan_tag = HNS3_VLAN_TAG_TYPE_TAG1;
else if (vlan_num == VLAN_TAG_NUM_MAX)
vlan_tag = HNS3_VLAN_TAG_TYPE_TAG1_2;
else
vlan_tag = HNS3_VLAN_TAG_TYPE_NONE;
hns3_set_field(meta_data,
GENMASK(cur_pos + tuple_size,
cur_pos), cur_pos, vlan_tag);
cur_pos += tuple_size;
} else if (i == DST_VPORT) {
port_number = hns3_get_port_number(0, vf_id);
hns3_set_field(meta_data,
GENMASK(cur_pos + tuple_size, cur_pos),
cur_pos, port_number);
cur_pos += tuple_size;
}
}
calc_x(tmp_x, meta_data, 0xFFFF);
calc_y(tmp_y, meta_data, 0xFFFF);
shift_bits = sizeof(meta_data) * HNS3_BITS_PER_BYTE - cur_pos;
tmp_x = rte_cpu_to_le_32(tmp_x << shift_bits);
tmp_y = rte_cpu_to_le_32(tmp_y << shift_bits);
key_x[0] = tmp_x & 0xFF;
key_x[1] = (tmp_x >> HNS3_BITS_PER_BYTE) & 0xFF;
key_y[0] = tmp_y & 0xFF;
key_y[1] = (tmp_y >> HNS3_BITS_PER_BYTE) & 0xFF;
}
/* A complete key is combined with meta data key and tuple key.
* Meta data key is stored at the MSB region, and tuple key is stored at
* the LSB region, unused bits will be filled 0.
*/
static int hns3_config_key(struct hns3_adapter *hns,
struct hns3_fdir_rule *rule)
{
struct hns3_pf *pf = &hns->pf;
struct hns3_hw *hw = &hns->hw;
struct hns3_fd_key_cfg *key_cfg;
uint8_t *cur_key_x;
uint8_t *cur_key_y;
uint8_t key_x[MAX_KEY_BYTES] __rte_aligned(4);
uint8_t key_y[MAX_KEY_BYTES] __rte_aligned(4);
uint8_t vf_id = rule->vf_id;
uint8_t meta_data_region;
uint8_t tuple_size;
uint8_t i;
int ret;
memset(key_x, 0, sizeof(key_x));
memset(key_y, 0, sizeof(key_y));
cur_key_x = key_x;
cur_key_y = key_y;
key_cfg = &pf->fdir.fd_cfg.key_cfg[HNS3_FD_STAGE_1];
for (i = 0; i < MAX_TUPLE; i++) {
bool tuple_valid;
tuple_size = tuple_key_info[i].key_length / HNS3_BITS_PER_BYTE;
if (key_cfg->tuple_active & BIT(i)) {
tuple_valid = hns3_fd_convert_tuple(hw, i, cur_key_x,
cur_key_y, rule);
if (tuple_valid) {
cur_key_x += tuple_size;
cur_key_y += tuple_size;
}
}
}
meta_data_region = pf->fdir.fd_cfg.max_key_length / HNS3_BITS_PER_BYTE -
MAX_META_DATA_LENGTH / HNS3_BITS_PER_BYTE;
hns3_fd_convert_meta_data(key_cfg, vf_id, rule,
key_x + meta_data_region,
key_y + meta_data_region);
ret = hns3_fd_tcam_config(hw, false, rule->location, key_y, true);
if (ret) {
hns3_err(hw, "Config fd key_y fail, loc=%u, ret=%d",
rule->queue_id, ret);
return ret;
}
ret = hns3_fd_tcam_config(hw, true, rule->location, key_x, true);
if (ret)
hns3_err(hw, "Config fd key_x fail, loc=%u, ret=%d",
rule->queue_id, ret);
return ret;
}
static int hns3_config_action(struct hns3_hw *hw, struct hns3_fdir_rule *rule)
{
struct hns3_fd_ad_data ad_data;
ad_data.ad_id = rule->location;
if (rule->action == HNS3_FD_ACTION_DROP_PACKET) {
ad_data.drop_packet = true;
ad_data.queue_id = 0;
ad_data.nb_queues = 0;
} else {
ad_data.drop_packet = false;
ad_data.queue_id = rule->queue_id;
ad_data.nb_queues = rule->nb_queues;
}
if (unlikely(rule->flags & HNS3_RULE_FLAG_COUNTER)) {
ad_data.use_counter = true;
ad_data.counter_id = rule->act_cnt.id;
} else {
ad_data.use_counter = false;
ad_data.counter_id = 0;
}
if (unlikely(rule->flags & HNS3_RULE_FLAG_FDID))
ad_data.rule_id = rule->fd_id;
else
ad_data.rule_id = rule->location;
ad_data.use_next_stage = false;
ad_data.next_input_key = 0;
ad_data.write_rule_id_to_bd = true;
return hns3_fd_ad_config(hw, ad_data.ad_id, &ad_data);
}
static int hns3_fd_clear_all_rules(struct hns3_hw *hw, uint32_t rule_num)
{
uint32_t i;
int ret;
for (i = 0; i < rule_num; i++) {
ret = hns3_fd_tcam_config(hw, true, i, NULL, false);
if (ret)
return ret;
}
return 0;
}
int hns3_fdir_filter_init(struct hns3_adapter *hns)
{
struct hns3_pf *pf = &hns->pf;
struct hns3_fdir_info *fdir_info = &pf->fdir;
uint32_t rule_num = fdir_info->fd_cfg.rule_num[HNS3_FD_STAGE_1];
char fdir_hash_name[RTE_HASH_NAMESIZE];
struct rte_hash_parameters fdir_hash_params = {
.name = fdir_hash_name,
.entries = rule_num,
.key_len = sizeof(struct hns3_fdir_key_conf),
.hash_func = rte_hash_crc,
.hash_func_init_val = 0,
};
int ret;
ret = hns3_fd_clear_all_rules(&hns->hw, rule_num);
if (ret) {
PMD_INIT_LOG(ERR, "Clear all fd rules fail! ret = %d", ret);
return ret;
}
fdir_hash_params.socket_id = rte_socket_id();
TAILQ_INIT(&fdir_info->fdir_list);
snprintf(fdir_hash_name, RTE_HASH_NAMESIZE, "%s", hns->hw.data->name);
fdir_info->hash_handle = rte_hash_create(&fdir_hash_params);
if (fdir_info->hash_handle == NULL) {
PMD_INIT_LOG(ERR, "Create FDIR hash handle fail!");
return -EINVAL;
}
fdir_info->hash_map = rte_zmalloc("hns3 FDIR hash",
rule_num *
sizeof(struct hns3_fdir_rule_ele *),
0);
if (fdir_info->hash_map == NULL) {
PMD_INIT_LOG(ERR, "Allocate memory for FDIR hash map fail!");
rte_hash_free(fdir_info->hash_handle);
return -ENOMEM;
}
return 0;
}
void hns3_fdir_filter_uninit(struct hns3_adapter *hns)
{
struct hns3_pf *pf = &hns->pf;
struct hns3_fdir_info *fdir_info = &pf->fdir;
struct hns3_fdir_rule_ele *fdir_filter;
if (fdir_info->hash_map) {
rte_free(fdir_info->hash_map);
fdir_info->hash_map = NULL;
}
if (fdir_info->hash_handle) {
rte_hash_free(fdir_info->hash_handle);
fdir_info->hash_handle = NULL;
}
fdir_filter = TAILQ_FIRST(&fdir_info->fdir_list);
while (fdir_filter) {
TAILQ_REMOVE(&fdir_info->fdir_list, fdir_filter, entries);
hns3_fd_tcam_config(&hns->hw, true,
fdir_filter->fdir_conf.location, NULL,
false);
rte_free(fdir_filter);
fdir_filter = TAILQ_FIRST(&fdir_info->fdir_list);
}
}
/*
* Find a key in the hash table.
* @return
* - Zero and positive values are key location.
* - -EINVAL if the parameters are invalid.
* - -ENOENT if the key is not found.
*/
static int hns3_fdir_filter_lookup(struct hns3_fdir_info *fdir_info,
struct hns3_fdir_key_conf *key)
{
hash_sig_t sig;
int ret;
sig = rte_hash_crc(key, sizeof(*key), 0);
ret = rte_hash_lookup_with_hash(fdir_info->hash_handle, key, sig);
return ret;
}
static int hns3_insert_fdir_filter(struct hns3_hw *hw,
struct hns3_fdir_info *fdir_info,
struct hns3_fdir_rule_ele *fdir_filter)
{
struct hns3_fdir_key_conf *key;
hash_sig_t sig;
int ret;
key = &fdir_filter->fdir_conf.key_conf;
sig = rte_hash_crc(key, sizeof(*key), 0);
ret = rte_hash_add_key_with_hash(fdir_info->hash_handle, key, sig);
if (ret < 0) {
hns3_err(hw, "Hash table full? err:%d(%s)!", ret,
strerror(-ret));
return ret;
}
fdir_info->hash_map[ret] = fdir_filter;
TAILQ_INSERT_TAIL(&fdir_info->fdir_list, fdir_filter, entries);
return ret;
}
static int hns3_remove_fdir_filter(struct hns3_hw *hw,
struct hns3_fdir_info *fdir_info,
struct hns3_fdir_key_conf *key)
{
struct hns3_fdir_rule_ele *fdir_filter;
hash_sig_t sig;
int ret;
sig = rte_hash_crc(key, sizeof(*key), 0);
ret = rte_hash_del_key_with_hash(fdir_info->hash_handle, key, sig);
if (ret < 0) {
hns3_err(hw, "Delete hash key fail ret=%d", ret);
return ret;
}
fdir_filter = fdir_info->hash_map[ret];
fdir_info->hash_map[ret] = NULL;
TAILQ_REMOVE(&fdir_info->fdir_list, fdir_filter, entries);
rte_free(fdir_filter);
return 0;
}
int hns3_fdir_filter_program(struct hns3_adapter *hns,
struct hns3_fdir_rule *rule, bool del)
{
struct hns3_pf *pf = &hns->pf;
struct hns3_fdir_info *fdir_info = &pf->fdir;
struct hns3_fdir_rule_ele *node;
struct hns3_hw *hw = &hns->hw;
int ret;
if (del) {
ret = hns3_fd_tcam_config(hw, true, rule->location, NULL,
false);
if (ret)
hns3_err(hw, "Failed to delete fdir: %u src_ip:%x "
"dst_ip:%x src_port:%u dst_port:%u ret = %d",
rule->location,
rule->key_conf.spec.src_ip[IP_ADDR_KEY_ID],
rule->key_conf.spec.dst_ip[IP_ADDR_KEY_ID],
rule->key_conf.spec.src_port,
rule->key_conf.spec.dst_port, ret);
else
hns3_remove_fdir_filter(hw, fdir_info, &rule->key_conf);
return ret;
}
ret = hns3_fdir_filter_lookup(fdir_info, &rule->key_conf);
if (ret >= 0) {
hns3_err(hw, "Conflict with existing fdir loc: %d", ret);
return -EINVAL;
}
node = rte_zmalloc("hns3 fdir rule", sizeof(struct hns3_fdir_rule_ele),
0);
if (node == NULL) {
hns3_err(hw, "Failed to allocate fdir_rule memory");
return -ENOMEM;
}
rte_memcpy(&node->fdir_conf, rule, sizeof(struct hns3_fdir_rule));
ret = hns3_insert_fdir_filter(hw, fdir_info, node);
if (ret < 0) {
rte_free(node);
return ret;
}
rule->location = ret;
node->fdir_conf.location = ret;
ret = hns3_config_action(hw, rule);
if (!ret)
ret = hns3_config_key(hns, rule);
if (ret) {
hns3_err(hw, "Failed to config fdir: %u src_ip:%x dst_ip:%x "
"src_port:%u dst_port:%u ret = %d",
rule->location,
rule->key_conf.spec.src_ip[IP_ADDR_KEY_ID],
rule->key_conf.spec.dst_ip[IP_ADDR_KEY_ID],
rule->key_conf.spec.src_port,
rule->key_conf.spec.dst_port, ret);
(void)hns3_remove_fdir_filter(hw, fdir_info, &rule->key_conf);
}
return ret;
}
/* remove all the flow director filters */
int hns3_clear_all_fdir_filter(struct hns3_adapter *hns)
{
struct hns3_pf *pf = &hns->pf;
struct hns3_fdir_info *fdir_info = &pf->fdir;
struct hns3_fdir_rule_ele *fdir_filter;
struct hns3_hw *hw = &hns->hw;
int ret = 0;
/* flush flow director */
rte_hash_reset(fdir_info->hash_handle);
fdir_filter = TAILQ_FIRST(&fdir_info->fdir_list);
while (fdir_filter) {
TAILQ_REMOVE(&fdir_info->fdir_list, fdir_filter, entries);
ret += hns3_fd_tcam_config(hw, true,
fdir_filter->fdir_conf.location,
NULL, false);
rte_free(fdir_filter);
fdir_filter = TAILQ_FIRST(&fdir_info->fdir_list);
}
if (ret) {
hns3_err(hw, "Fail to delete FDIR filter, ret = %d", ret);
ret = -EIO;
}
return ret;
}
int hns3_restore_all_fdir_filter(struct hns3_adapter *hns)
{
struct hns3_pf *pf = &hns->pf;
struct hns3_fdir_info *fdir_info = &pf->fdir;
struct hns3_fdir_rule_ele *fdir_filter;
struct hns3_hw *hw = &hns->hw;
bool err = false;
int ret;
/*
* This API is called in the reset recovery process, the parent function
* must hold hw->lock.
* There maybe deadlock if acquire hw->flows_lock directly because rte
* flow driver ops first acquire hw->flows_lock and then may acquire
* hw->lock.
* So here first release the hw->lock and then acquire the
* hw->flows_lock to avoid deadlock.
*/
rte_spinlock_unlock(&hw->lock);
pthread_mutex_lock(&hw->flows_lock);
TAILQ_FOREACH(fdir_filter, &fdir_info->fdir_list, entries) {
ret = hns3_config_action(hw, &fdir_filter->fdir_conf);
if (!ret)
ret = hns3_config_key(hns, &fdir_filter->fdir_conf);
if (ret) {
err = true;
if (ret == -EBUSY)
break;
}
}
pthread_mutex_unlock(&hw->flows_lock);
rte_spinlock_lock(&hw->lock);
if (err) {
hns3_err(hw, "Fail to restore FDIR filter, ret = %d", ret);
return -EIO;
}
return 0;
}
int hns3_get_count(struct hns3_hw *hw, uint32_t id, uint64_t *value)
{
struct hns3_fd_get_cnt_cmd *req;
struct hns3_cmd_desc desc;
int ret;
hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_FD_COUNTER_OP, true);
req = (struct hns3_fd_get_cnt_cmd *)desc.data;
req->stage = HNS3_FD_STAGE_1;
req->index = rte_cpu_to_le_32(id);
ret = hns3_cmd_send(hw, &desc, 1);
if (ret) {
hns3_err(hw, "Read counter fail, ret=%d", ret);
return ret;
}
*value = req->value;
return ret;
}
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