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numam-dpdk/drivers/net/hns3/hns3_flow.c
Wei Hu (Xavier) c37ca66f2b net/hns3: support RSS 
This patch adds support for RSS of hns3 PMD driver. It included the
follow functions:
In file hns3_rss.c:
1) Set/query hash key, rss_hf by .rss_hash_update/.rss_hash_conf_get ops
   callback functions.
2) Set/query redirection table by .reta_update/.reta_query. ops callback
   functions.
3) Set/query hash algorithm by .filter_ctrl ops callback function when
   the 'filter_type' is RTE_ETH_FILTER_HASH.

In file hns3_flow.c:
1) Set hash key, rss_hf, redirection table and algorithm by .create ops
   callback function.
2) Disable RSS by .destroy or .flush ops callback function.
3) Check the effectiveness of the RSS's configuration by .validate ops
   callback function.

Signed-off-by: Hao Chen <chenhao164@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Chunsong Feng <fengchunsong@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
Signed-off-by: Huisong Li <lihuisong@huawei.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2019-10-07 15:00:56 +02:00

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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2018-2019 Hisilicon Limited.
*/
#include <stdbool.h>
#include <sys/queue.h>
#include <rte_flow_driver.h>
#include <rte_io.h>
#include <rte_malloc.h>
#include "hns3_ethdev.h"
#include "hns3_logs.h"
/* Default default keys */
static uint8_t hns3_hash_key[] = {
0x6D, 0x5A, 0x56, 0xDA, 0x25, 0x5B, 0x0E, 0xC2,
0x41, 0x67, 0x25, 0x3D, 0x43, 0xA3, 0x8F, 0xB0,
0xD0, 0xCA, 0x2B, 0xCB, 0xAE, 0x7B, 0x30, 0xB4,
0x77, 0xCB, 0x2D, 0xA3, 0x80, 0x30, 0xF2, 0x0C,
0x6A, 0x42, 0xB7, 0x3B, 0xBE, 0xAC, 0x01, 0xFA
};
static const uint8_t full_mask[VNI_OR_TNI_LEN] = { 0xFF, 0xFF, 0xFF };
static const uint8_t zero_mask[VNI_OR_TNI_LEN] = { 0x00, 0x00, 0x00 };
/* Special Filter id for non-specific packet flagging. Don't change value */
#define HNS3_MAX_FILTER_ID 0x0FFF
#define ETHER_TYPE_MASK 0xFFFF
#define IPPROTO_MASK 0xFF
#define TUNNEL_TYPE_MASK 0xFFFF
#define HNS3_TUNNEL_TYPE_VXLAN 0x12B5
#define HNS3_TUNNEL_TYPE_VXLAN_GPE 0x12B6
#define HNS3_TUNNEL_TYPE_GENEVE 0x17C1
#define HNS3_TUNNEL_TYPE_NVGRE 0x6558
static enum rte_flow_item_type first_items[] = {
RTE_FLOW_ITEM_TYPE_ETH,
RTE_FLOW_ITEM_TYPE_IPV4,
RTE_FLOW_ITEM_TYPE_IPV6,
RTE_FLOW_ITEM_TYPE_TCP,
RTE_FLOW_ITEM_TYPE_UDP,
RTE_FLOW_ITEM_TYPE_SCTP,
RTE_FLOW_ITEM_TYPE_ICMP,
RTE_FLOW_ITEM_TYPE_NVGRE,
RTE_FLOW_ITEM_TYPE_VXLAN,
RTE_FLOW_ITEM_TYPE_GENEVE,
RTE_FLOW_ITEM_TYPE_VXLAN_GPE,
RTE_FLOW_ITEM_TYPE_MPLS
};
static enum rte_flow_item_type L2_next_items[] = {
RTE_FLOW_ITEM_TYPE_VLAN,
RTE_FLOW_ITEM_TYPE_IPV4,
RTE_FLOW_ITEM_TYPE_IPV6
};
static enum rte_flow_item_type L3_next_items[] = {
RTE_FLOW_ITEM_TYPE_TCP,
RTE_FLOW_ITEM_TYPE_UDP,
RTE_FLOW_ITEM_TYPE_SCTP,
RTE_FLOW_ITEM_TYPE_NVGRE,
RTE_FLOW_ITEM_TYPE_ICMP
};
static enum rte_flow_item_type L4_next_items[] = {
RTE_FLOW_ITEM_TYPE_VXLAN,
RTE_FLOW_ITEM_TYPE_GENEVE,
RTE_FLOW_ITEM_TYPE_VXLAN_GPE,
RTE_FLOW_ITEM_TYPE_MPLS
};
static enum rte_flow_item_type tunnel_next_items[] = {
RTE_FLOW_ITEM_TYPE_ETH,
RTE_FLOW_ITEM_TYPE_VLAN
};
struct items_step_mngr {
enum rte_flow_item_type *items;
int count;
};
static inline void
net_addr_to_host(uint32_t *dst, const rte_be32_t *src, size_t len)
{
size_t i;
for (i = 0; i < len; i++)
dst[i] = rte_be_to_cpu_32(src[i]);
}
static inline const struct rte_flow_action *
find_rss_action(const struct rte_flow_action actions[])
{
const struct rte_flow_action *next = &actions[0];
for (; next->type != RTE_FLOW_ACTION_TYPE_END; next++) {
if (next->type == RTE_FLOW_ACTION_TYPE_RSS)
return next;
}
return NULL;
}
static inline struct hns3_flow_counter *
hns3_counter_lookup(struct rte_eth_dev *dev, uint32_t id)
{
struct hns3_adapter *hns = dev->data->dev_private;
struct hns3_pf *pf = &hns->pf;
struct hns3_flow_counter *cnt;
LIST_FOREACH(cnt, &pf->flow_counters, next) {
if (cnt->id == id)
return cnt;
}
return NULL;
}
static int
hns3_counter_new(struct rte_eth_dev *dev, uint32_t shared, uint32_t id,
struct rte_flow_error *error)
{
struct hns3_adapter *hns = dev->data->dev_private;
struct hns3_pf *pf = &hns->pf;
struct hns3_flow_counter *cnt;
cnt = hns3_counter_lookup(dev, id);
if (cnt) {
if (!cnt->shared || cnt->shared != shared)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION,
cnt,
"Counter id is used,shared flag not match");
cnt->ref_cnt++;
return 0;
}
cnt = rte_zmalloc("hns3 counter", sizeof(*cnt), 0);
if (cnt == NULL)
return rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_ACTION, cnt,
"Alloc mem for counter failed");
cnt->id = id;
cnt->shared = shared;
cnt->ref_cnt = 1;
cnt->hits = 0;
LIST_INSERT_HEAD(&pf->flow_counters, cnt, next);
return 0;
}
static int
hns3_counter_query(struct rte_eth_dev *dev, struct rte_flow *flow,
struct rte_flow_query_count *qc,
struct rte_flow_error *error)
{
struct hns3_adapter *hns = dev->data->dev_private;
struct hns3_flow_counter *cnt;
uint64_t value;
int ret;
/* FDIR is available only in PF driver */
if (hns->is_vf)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
"Fdir is not supported in VF");
cnt = hns3_counter_lookup(dev, flow->counter_id);
if (cnt == NULL)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
"Can't find counter id");
ret = hns3_get_count(&hns->hw, flow->counter_id, &value);
if (ret) {
rte_flow_error_set(error, -ret,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL, "Read counter fail.");
return ret;
}
qc->hits_set = 1;
qc->hits = value;
return 0;
}
static int
hns3_counter_release(struct rte_eth_dev *dev, uint32_t id)
{
struct hns3_adapter *hns = dev->data->dev_private;
struct hns3_hw *hw = &hns->hw;
struct hns3_flow_counter *cnt;
cnt = hns3_counter_lookup(dev, id);
if (cnt == NULL) {
hns3_err(hw, "Can't find available counter to release");
return -EINVAL;
}
cnt->ref_cnt--;
if (cnt->ref_cnt == 0) {
LIST_REMOVE(cnt, next);
rte_free(cnt);
}
return 0;
}
static void
hns3_counter_flush(struct rte_eth_dev *dev)
{
struct hns3_adapter *hns = dev->data->dev_private;
struct hns3_pf *pf = &hns->pf;
struct hns3_flow_counter *cnt_ptr;
cnt_ptr = LIST_FIRST(&pf->flow_counters);
while (cnt_ptr) {
LIST_REMOVE(cnt_ptr, next);
rte_free(cnt_ptr);
cnt_ptr = LIST_FIRST(&pf->flow_counters);
}
}
static int
hns3_handle_action_queue(struct rte_eth_dev *dev,
const struct rte_flow_action *action,
struct hns3_fdir_rule *rule,
struct rte_flow_error *error)
{
struct hns3_adapter *hns = dev->data->dev_private;
struct hns3_hw *hw = &hns->hw;
const struct rte_flow_action_queue *queue;
queue = (const struct rte_flow_action_queue *)action->conf;
if (queue->index >= hw->data->nb_rx_queues)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, action,
"Invalid queue ID in PF");
rule->queue_id = queue->index;
rule->action = HNS3_FD_ACTION_ACCEPT_PACKET;
return 0;
}
/*
* Parse actions structure from the provided pattern.
* The pattern is validated as the items are copied.
*
* @param actions[in]
* @param rule[out]
* NIC specfilc actions derived from the actions.
* @param error[out]
*/
static int
hns3_handle_actions(struct rte_eth_dev *dev,
const struct rte_flow_action actions[],
struct hns3_fdir_rule *rule, struct rte_flow_error *error)
{
struct hns3_adapter *hns = dev->data->dev_private;
const struct rte_flow_action_count *act_count;
const struct rte_flow_action_mark *mark;
struct hns3_pf *pf = &hns->pf;
uint32_t counter_num;
int ret;
for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
switch (actions->type) {
case RTE_FLOW_ACTION_TYPE_QUEUE:
ret = hns3_handle_action_queue(dev, actions, rule,
error);
if (ret)
return ret;
break;
case RTE_FLOW_ACTION_TYPE_DROP:
rule->action = HNS3_FD_ACTION_DROP_PACKET;
break;
case RTE_FLOW_ACTION_TYPE_MARK:
mark =
(const struct rte_flow_action_mark *)actions->conf;
if (mark->id >= HNS3_MAX_FILTER_ID)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
actions,
"Invalid Mark ID");
rule->fd_id = mark->id;
rule->flags |= HNS3_RULE_FLAG_FDID;
break;
case RTE_FLOW_ACTION_TYPE_FLAG:
rule->fd_id = HNS3_MAX_FILTER_ID;
rule->flags |= HNS3_RULE_FLAG_FDID;
break;
case RTE_FLOW_ACTION_TYPE_COUNT:
act_count =
(const struct rte_flow_action_count *)actions->conf;
counter_num = pf->fdir.fd_cfg.cnt_num[HNS3_FD_STAGE_1];
if (act_count->id >= counter_num)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
actions,
"Invalid counter id");
rule->act_cnt = *act_count;
rule->flags |= HNS3_RULE_FLAG_COUNTER;
break;
case RTE_FLOW_ACTION_TYPE_VOID:
break;
default:
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION,
NULL, "Unsupported action");
}
}
return 0;
}
/* Parse to get the attr and action info of flow director rule. */
static int
hns3_check_attr(const struct rte_flow_attr *attr, struct rte_flow_error *error)
{
if (!attr->ingress)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
attr, "Ingress can't be zero");
if (attr->egress)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
attr, "Not support egress");
if (attr->transfer)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
attr, "No support for transfer");
if (attr->priority)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
attr, "Not support priority");
if (attr->group)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
attr, "Not support group");
return 0;
}
static int
hns3_parse_eth(const struct rte_flow_item *item,
struct hns3_fdir_rule *rule, struct rte_flow_error *error)
{
const struct rte_flow_item_eth *eth_spec;
const struct rte_flow_item_eth *eth_mask;
if (item->spec == NULL && item->mask)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Can't configure FDIR with mask but without spec");
/* Only used to describe the protocol stack. */
if (item->spec == NULL && item->mask == NULL)
return 0;
if (item->mask) {
eth_mask = item->mask;
if (eth_mask->type) {
hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
rule->key_conf.mask.ether_type =
rte_be_to_cpu_16(eth_mask->type);
}
if (!rte_is_zero_ether_addr(&eth_mask->src)) {
hns3_set_bit(rule->input_set, INNER_SRC_MAC, 1);
memcpy(rule->key_conf.mask.src_mac,
eth_mask->src.addr_bytes, RTE_ETHER_ADDR_LEN);
}
if (!rte_is_zero_ether_addr(&eth_mask->dst)) {
hns3_set_bit(rule->input_set, INNER_DST_MAC, 1);
memcpy(rule->key_conf.mask.dst_mac,
eth_mask->dst.addr_bytes, RTE_ETHER_ADDR_LEN);
}
}
eth_spec = item->spec;
rule->key_conf.spec.ether_type = rte_be_to_cpu_16(eth_spec->type);
memcpy(rule->key_conf.spec.src_mac, eth_spec->src.addr_bytes,
RTE_ETHER_ADDR_LEN);
memcpy(rule->key_conf.spec.dst_mac, eth_spec->dst.addr_bytes,
RTE_ETHER_ADDR_LEN);
return 0;
}
static int
hns3_parse_vlan(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
struct rte_flow_error *error)
{
const struct rte_flow_item_vlan *vlan_spec;
const struct rte_flow_item_vlan *vlan_mask;
if (item->spec == NULL && item->mask)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Can't configure FDIR with mask but without spec");
rule->key_conf.vlan_num++;
if (rule->key_conf.vlan_num > VLAN_TAG_NUM_MAX)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Vlan_num is more than 2");
/* Only used to describe the protocol stack. */
if (item->spec == NULL && item->mask == NULL)
return 0;
if (item->mask) {
vlan_mask = item->mask;
if (vlan_mask->tci) {
if (rule->key_conf.vlan_num == 1) {
hns3_set_bit(rule->input_set, INNER_VLAN_TAG1,
1);
rule->key_conf.mask.vlan_tag1 =
rte_be_to_cpu_16(vlan_mask->tci);
} else {
hns3_set_bit(rule->input_set, INNER_VLAN_TAG2,
1);
rule->key_conf.mask.vlan_tag2 =
rte_be_to_cpu_16(vlan_mask->tci);
}
}
}
vlan_spec = item->spec;
if (rule->key_conf.vlan_num == 1)
rule->key_conf.spec.vlan_tag1 =
rte_be_to_cpu_16(vlan_spec->tci);
else
rule->key_conf.spec.vlan_tag2 =
rte_be_to_cpu_16(vlan_spec->tci);
return 0;
}
static int
hns3_parse_ipv4(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
struct rte_flow_error *error)
{
const struct rte_flow_item_ipv4 *ipv4_spec;
const struct rte_flow_item_ipv4 *ipv4_mask;
if (item->spec == NULL && item->mask)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Can't configure FDIR with mask but without spec");
hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
rule->key_conf.spec.ether_type = RTE_ETHER_TYPE_IPV4;
rule->key_conf.mask.ether_type = ETHER_TYPE_MASK;
/* Only used to describe the protocol stack. */
if (item->spec == NULL && item->mask == NULL)
return 0;
if (item->mask) {
ipv4_mask = item->mask;
if (ipv4_mask->hdr.total_length ||
ipv4_mask->hdr.packet_id ||
ipv4_mask->hdr.fragment_offset ||
ipv4_mask->hdr.time_to_live ||
ipv4_mask->hdr.hdr_checksum) {
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"Only support src & dst ip,tos,proto in IPV4");
}
if (ipv4_mask->hdr.src_addr) {
hns3_set_bit(rule->input_set, INNER_SRC_IP, 1);
rule->key_conf.mask.src_ip[IP_ADDR_KEY_ID] =
rte_be_to_cpu_32(ipv4_mask->hdr.src_addr);
}
if (ipv4_mask->hdr.dst_addr) {
hns3_set_bit(rule->input_set, INNER_DST_IP, 1);
rule->key_conf.mask.dst_ip[IP_ADDR_KEY_ID] =
rte_be_to_cpu_32(ipv4_mask->hdr.dst_addr);
}
if (ipv4_mask->hdr.type_of_service) {
hns3_set_bit(rule->input_set, INNER_IP_TOS, 1);
rule->key_conf.mask.ip_tos =
ipv4_mask->hdr.type_of_service;
}
if (ipv4_mask->hdr.next_proto_id) {
hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
rule->key_conf.mask.ip_proto =
ipv4_mask->hdr.next_proto_id;
}
}
ipv4_spec = item->spec;
rule->key_conf.spec.src_ip[IP_ADDR_KEY_ID] =
rte_be_to_cpu_32(ipv4_spec->hdr.src_addr);
rule->key_conf.spec.dst_ip[IP_ADDR_KEY_ID] =
rte_be_to_cpu_32(ipv4_spec->hdr.dst_addr);
rule->key_conf.spec.ip_tos = ipv4_spec->hdr.type_of_service;
rule->key_conf.spec.ip_proto = ipv4_spec->hdr.next_proto_id;
return 0;
}
static int
hns3_parse_ipv6(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
struct rte_flow_error *error)
{
const struct rte_flow_item_ipv6 *ipv6_spec;
const struct rte_flow_item_ipv6 *ipv6_mask;
if (item->spec == NULL && item->mask)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Can't configure FDIR with mask but without spec");
hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
rule->key_conf.spec.ether_type = RTE_ETHER_TYPE_IPV6;
rule->key_conf.mask.ether_type = ETHER_TYPE_MASK;
/* Only used to describe the protocol stack. */
if (item->spec == NULL && item->mask == NULL)
return 0;
if (item->mask) {
ipv6_mask = item->mask;
if (ipv6_mask->hdr.vtc_flow ||
ipv6_mask->hdr.payload_len || ipv6_mask->hdr.hop_limits) {
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"Only support src & dst ip,proto in IPV6");
}
net_addr_to_host(rule->key_conf.mask.src_ip,
(const rte_be32_t *)ipv6_mask->hdr.src_addr,
IP_ADDR_LEN);
net_addr_to_host(rule->key_conf.mask.dst_ip,
(const rte_be32_t *)ipv6_mask->hdr.dst_addr,
IP_ADDR_LEN);
rule->key_conf.mask.ip_proto = ipv6_mask->hdr.proto;
if (rule->key_conf.mask.src_ip[IP_ADDR_KEY_ID])
hns3_set_bit(rule->input_set, INNER_SRC_IP, 1);
if (rule->key_conf.mask.dst_ip[IP_ADDR_KEY_ID])
hns3_set_bit(rule->input_set, INNER_DST_IP, 1);
if (ipv6_mask->hdr.proto)
hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
}
ipv6_spec = item->spec;
net_addr_to_host(rule->key_conf.spec.src_ip,
(const rte_be32_t *)ipv6_spec->hdr.src_addr,
IP_ADDR_LEN);
net_addr_to_host(rule->key_conf.spec.dst_ip,
(const rte_be32_t *)ipv6_spec->hdr.dst_addr,
IP_ADDR_LEN);
rule->key_conf.spec.ip_proto = ipv6_spec->hdr.proto;
return 0;
}
static int
hns3_parse_tcp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
struct rte_flow_error *error)
{
const struct rte_flow_item_tcp *tcp_spec;
const struct rte_flow_item_tcp *tcp_mask;
if (item->spec == NULL && item->mask)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Can't configure FDIR with mask but without spec");
hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
rule->key_conf.spec.ip_proto = IPPROTO_TCP;
rule->key_conf.mask.ip_proto = IPPROTO_MASK;
/* Only used to describe the protocol stack. */
if (item->spec == NULL && item->mask == NULL)
return 0;
if (item->mask) {
tcp_mask = item->mask;
if (tcp_mask->hdr.sent_seq ||
tcp_mask->hdr.recv_ack ||
tcp_mask->hdr.data_off ||
tcp_mask->hdr.tcp_flags ||
tcp_mask->hdr.rx_win ||
tcp_mask->hdr.cksum || tcp_mask->hdr.tcp_urp) {
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"Only support src & dst port in TCP");
}
if (tcp_mask->hdr.src_port) {
hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
rule->key_conf.mask.src_port =
rte_be_to_cpu_16(tcp_mask->hdr.src_port);
}
if (tcp_mask->hdr.dst_port) {
hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
rule->key_conf.mask.dst_port =
rte_be_to_cpu_16(tcp_mask->hdr.dst_port);
}
}
tcp_spec = item->spec;
rule->key_conf.spec.src_port = rte_be_to_cpu_16(tcp_spec->hdr.src_port);
rule->key_conf.spec.dst_port = rte_be_to_cpu_16(tcp_spec->hdr.dst_port);
return 0;
}
static int
hns3_parse_udp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
struct rte_flow_error *error)
{
const struct rte_flow_item_udp *udp_spec;
const struct rte_flow_item_udp *udp_mask;
if (item->spec == NULL && item->mask)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Can't configure FDIR with mask but without spec");
hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
rule->key_conf.spec.ip_proto = IPPROTO_UDP;
rule->key_conf.mask.ip_proto = IPPROTO_MASK;
/* Only used to describe the protocol stack. */
if (item->spec == NULL && item->mask == NULL)
return 0;
if (item->mask) {
udp_mask = item->mask;
if (udp_mask->hdr.dgram_len || udp_mask->hdr.dgram_cksum) {
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"Only support src & dst port in UDP");
}
if (udp_mask->hdr.src_port) {
hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
rule->key_conf.mask.src_port =
rte_be_to_cpu_16(udp_mask->hdr.src_port);
}
if (udp_mask->hdr.dst_port) {
hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
rule->key_conf.mask.dst_port =
rte_be_to_cpu_16(udp_mask->hdr.dst_port);
}
}
udp_spec = item->spec;
rule->key_conf.spec.src_port = rte_be_to_cpu_16(udp_spec->hdr.src_port);
rule->key_conf.spec.dst_port = rte_be_to_cpu_16(udp_spec->hdr.dst_port);
return 0;
}
static int
hns3_parse_sctp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
struct rte_flow_error *error)
{
const struct rte_flow_item_sctp *sctp_spec;
const struct rte_flow_item_sctp *sctp_mask;
if (item->spec == NULL && item->mask)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Can't configure FDIR with mask but without spec");
hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
rule->key_conf.spec.ip_proto = IPPROTO_SCTP;
rule->key_conf.mask.ip_proto = IPPROTO_MASK;
/* Only used to describe the protocol stack. */
if (item->spec == NULL && item->mask == NULL)
return 0;
if (item->mask) {
sctp_mask = item->mask;
if (sctp_mask->hdr.cksum)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"Only support src & dst port in SCTP");
if (sctp_mask->hdr.src_port) {
hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
rule->key_conf.mask.src_port =
rte_be_to_cpu_16(sctp_mask->hdr.src_port);
}
if (sctp_mask->hdr.dst_port) {
hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
rule->key_conf.mask.dst_port =
rte_be_to_cpu_16(sctp_mask->hdr.dst_port);
}
if (sctp_mask->hdr.tag) {
hns3_set_bit(rule->input_set, INNER_SCTP_TAG, 1);
rule->key_conf.mask.sctp_tag =
rte_be_to_cpu_32(sctp_mask->hdr.tag);
}
}
sctp_spec = item->spec;
rule->key_conf.spec.src_port =
rte_be_to_cpu_16(sctp_spec->hdr.src_port);
rule->key_conf.spec.dst_port =
rte_be_to_cpu_16(sctp_spec->hdr.dst_port);
rule->key_conf.spec.sctp_tag = rte_be_to_cpu_32(sctp_spec->hdr.tag);
return 0;
}
/*
* Check items before tunnel, save inner configs to outer configs,and clear
* inner configs.
* The key consists of two parts: meta_data and tuple keys.
* Meta data uses 15 bits, including vlan_num(2bit), des_port(12bit) and tunnel
* packet(1bit).
* Tuple keys uses 384bit, including ot_dst-mac(48bit), ot_dst-port(16bit),
* ot_tun_vni(24bit), ot_flow_id(8bit), src-mac(48bit), dst-mac(48bit),
* src-ip(32/128bit), dst-ip(32/128bit), src-port(16bit), dst-port(16bit),
* tos(8bit), ether-proto(16bit), ip-proto(8bit), vlantag1(16bit),
* Vlantag2(16bit) and sctp-tag(32bit).
*/
static int
hns3_handle_tunnel(const struct rte_flow_item *item,
struct hns3_fdir_rule *rule, struct rte_flow_error *error)
{
/* check eth config */
if (rule->input_set & (BIT(INNER_SRC_MAC) | BIT(INNER_DST_MAC)))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item, "Outer eth mac is unsupported");
if (rule->input_set & BIT(INNER_ETH_TYPE)) {
hns3_set_bit(rule->input_set, OUTER_ETH_TYPE, 1);
rule->key_conf.spec.outer_ether_type =
rule->key_conf.spec.ether_type;
rule->key_conf.mask.outer_ether_type =
rule->key_conf.mask.ether_type;
hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 0);
rule->key_conf.spec.ether_type = 0;
rule->key_conf.mask.ether_type = 0;
}
/* check vlan config */
if (rule->input_set & (BIT(INNER_VLAN_TAG1) | BIT(INNER_VLAN_TAG2)))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"Outer vlan tags is unsupported");
/* clear vlan_num for inner vlan select */
rule->key_conf.outer_vlan_num = rule->key_conf.vlan_num;
rule->key_conf.vlan_num = 0;
/* check L3 config */
if (rule->input_set &
(BIT(INNER_SRC_IP) | BIT(INNER_DST_IP) | BIT(INNER_IP_TOS)))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item, "Outer ip is unsupported");
if (rule->input_set & BIT(INNER_IP_PROTO)) {
hns3_set_bit(rule->input_set, OUTER_IP_PROTO, 1);
rule->key_conf.spec.outer_proto = rule->key_conf.spec.ip_proto;
rule->key_conf.mask.outer_proto = rule->key_conf.mask.ip_proto;
hns3_set_bit(rule->input_set, INNER_IP_PROTO, 0);
rule->key_conf.spec.ip_proto = 0;
rule->key_conf.mask.ip_proto = 0;
}
/* check L4 config */
if (rule->input_set & BIT(INNER_SCTP_TAG))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Outer sctp tag is unsupported");
if (rule->input_set & BIT(INNER_SRC_PORT)) {
hns3_set_bit(rule->input_set, OUTER_SRC_PORT, 1);
rule->key_conf.spec.outer_src_port =
rule->key_conf.spec.src_port;
rule->key_conf.mask.outer_src_port =
rule->key_conf.mask.src_port;
hns3_set_bit(rule->input_set, INNER_SRC_PORT, 0);
rule->key_conf.spec.src_port = 0;
rule->key_conf.mask.src_port = 0;
}
if (rule->input_set & BIT(INNER_DST_PORT)) {
hns3_set_bit(rule->input_set, INNER_DST_PORT, 0);
rule->key_conf.spec.dst_port = 0;
rule->key_conf.mask.dst_port = 0;
}
return 0;
}
static int
hns3_parse_vxlan(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
struct rte_flow_error *error)
{
const struct rte_flow_item_vxlan *vxlan_spec;
const struct rte_flow_item_vxlan *vxlan_mask;
if (item->spec == NULL && item->mask)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Can't configure FDIR with mask but without spec");
else if (item->spec && (item->mask == NULL))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Tunnel packets must configure with mask");
hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
rule->key_conf.mask.tunnel_type = TUNNEL_TYPE_MASK;
if (item->type == RTE_FLOW_ITEM_TYPE_VXLAN)
rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_VXLAN;
else
rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_VXLAN_GPE;
/* Only used to describe the protocol stack. */
if (item->spec == NULL && item->mask == NULL)
return 0;
vxlan_mask = item->mask;
vxlan_spec = item->spec;
if (vxlan_mask->flags)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Flags is not supported in VxLAN");
/* VNI must be totally masked or not. */
if (memcmp(vxlan_mask->vni, full_mask, VNI_OR_TNI_LEN) &&
memcmp(vxlan_mask->vni, zero_mask, VNI_OR_TNI_LEN))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"VNI must be totally masked or not in VxLAN");
if (vxlan_mask->vni[0]) {
hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
memcpy(rule->key_conf.mask.outer_tun_vni, vxlan_mask->vni,
VNI_OR_TNI_LEN);
}
memcpy(rule->key_conf.spec.outer_tun_vni, vxlan_spec->vni,
VNI_OR_TNI_LEN);
return 0;
}
static int
hns3_parse_nvgre(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
struct rte_flow_error *error)
{
const struct rte_flow_item_nvgre *nvgre_spec;
const struct rte_flow_item_nvgre *nvgre_mask;
if (item->spec == NULL && item->mask)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Can't configure FDIR with mask but without spec");
else if (item->spec && (item->mask == NULL))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Tunnel packets must configure with mask");
hns3_set_bit(rule->input_set, OUTER_IP_PROTO, 1);
rule->key_conf.spec.outer_proto = IPPROTO_GRE;
rule->key_conf.mask.outer_proto = IPPROTO_MASK;
hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_NVGRE;
rule->key_conf.mask.tunnel_type = ~HNS3_TUNNEL_TYPE_NVGRE;
/* Only used to describe the protocol stack. */
if (item->spec == NULL && item->mask == NULL)
return 0;
nvgre_mask = item->mask;
nvgre_spec = item->spec;
if (nvgre_mask->protocol || nvgre_mask->c_k_s_rsvd0_ver)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Ver/protocal is not supported in NVGRE");
/* TNI must be totally masked or not. */
if (memcmp(nvgre_mask->tni, full_mask, VNI_OR_TNI_LEN) &&
memcmp(nvgre_mask->tni, zero_mask, VNI_OR_TNI_LEN))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"TNI must be totally masked or not in NVGRE");
if (nvgre_mask->tni[0]) {
hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
memcpy(rule->key_conf.mask.outer_tun_vni, nvgre_mask->tni,
VNI_OR_TNI_LEN);
}
memcpy(rule->key_conf.spec.outer_tun_vni, nvgre_spec->tni,
VNI_OR_TNI_LEN);
if (nvgre_mask->flow_id) {
hns3_set_bit(rule->input_set, OUTER_TUN_FLOW_ID, 1);
rule->key_conf.mask.outer_tun_flow_id = nvgre_mask->flow_id;
}
rule->key_conf.spec.outer_tun_flow_id = nvgre_spec->flow_id;
return 0;
}
static int
hns3_parse_geneve(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
struct rte_flow_error *error)
{
const struct rte_flow_item_geneve *geneve_spec;
const struct rte_flow_item_geneve *geneve_mask;
if (item->spec == NULL && item->mask)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Can't configure FDIR with mask but without spec");
else if (item->spec && (item->mask == NULL))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Tunnel packets must configure with mask");
hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_GENEVE;
rule->key_conf.mask.tunnel_type = TUNNEL_TYPE_MASK;
/* Only used to describe the protocol stack. */
if (item->spec == NULL && item->mask == NULL)
return 0;
geneve_mask = item->mask;
geneve_spec = item->spec;
if (geneve_mask->ver_opt_len_o_c_rsvd0 || geneve_mask->protocol)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Ver/protocal is not supported in GENEVE");
/* VNI must be totally masked or not. */
if (memcmp(geneve_mask->vni, full_mask, VNI_OR_TNI_LEN) &&
memcmp(geneve_mask->vni, zero_mask, VNI_OR_TNI_LEN))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"VNI must be totally masked or not in GENEVE");
if (geneve_mask->vni[0]) {
hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
memcpy(rule->key_conf.mask.outer_tun_vni, geneve_mask->vni,
VNI_OR_TNI_LEN);
}
memcpy(rule->key_conf.spec.outer_tun_vni, geneve_spec->vni,
VNI_OR_TNI_LEN);
return 0;
}
static int
hns3_parse_tunnel(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
struct rte_flow_error *error)
{
int ret;
switch (item->type) {
case RTE_FLOW_ITEM_TYPE_VXLAN:
case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
ret = hns3_parse_vxlan(item, rule, error);
break;
case RTE_FLOW_ITEM_TYPE_NVGRE:
ret = hns3_parse_nvgre(item, rule, error);
break;
case RTE_FLOW_ITEM_TYPE_GENEVE:
ret = hns3_parse_geneve(item, rule, error);
break;
default:
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_HANDLE,
NULL, "Unsupported tunnel type!");
}
if (ret)
return ret;
return hns3_handle_tunnel(item, rule, error);
}
static int
hns3_parse_normal(const struct rte_flow_item *item,
struct hns3_fdir_rule *rule,
struct items_step_mngr *step_mngr,
struct rte_flow_error *error)
{
int ret;
switch (item->type) {
case RTE_FLOW_ITEM_TYPE_ETH:
ret = hns3_parse_eth(item, rule, error);
step_mngr->items = L2_next_items;
step_mngr->count = ARRAY_SIZE(L2_next_items);
break;
case RTE_FLOW_ITEM_TYPE_VLAN:
ret = hns3_parse_vlan(item, rule, error);
step_mngr->items = L2_next_items;
step_mngr->count = ARRAY_SIZE(L2_next_items);
break;
case RTE_FLOW_ITEM_TYPE_IPV4:
ret = hns3_parse_ipv4(item, rule, error);
step_mngr->items = L3_next_items;
step_mngr->count = ARRAY_SIZE(L3_next_items);
break;
case RTE_FLOW_ITEM_TYPE_IPV6:
ret = hns3_parse_ipv6(item, rule, error);
step_mngr->items = L3_next_items;
step_mngr->count = ARRAY_SIZE(L3_next_items);
break;
case RTE_FLOW_ITEM_TYPE_TCP:
ret = hns3_parse_tcp(item, rule, error);
step_mngr->items = L4_next_items;
step_mngr->count = ARRAY_SIZE(L4_next_items);
break;
case RTE_FLOW_ITEM_TYPE_UDP:
ret = hns3_parse_udp(item, rule, error);
step_mngr->items = L4_next_items;
step_mngr->count = ARRAY_SIZE(L4_next_items);
break;
case RTE_FLOW_ITEM_TYPE_SCTP:
ret = hns3_parse_sctp(item, rule, error);
step_mngr->items = L4_next_items;
step_mngr->count = ARRAY_SIZE(L4_next_items);
break;
default:
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_HANDLE,
NULL, "Unsupported normal type!");
}
return ret;
}
static int
hns3_validate_item(const struct rte_flow_item *item,
struct items_step_mngr step_mngr,
struct rte_flow_error *error)
{
int i;
if (item->last)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, item,
"Not supported last point for range");
for (i = 0; i < step_mngr.count; i++) {
if (item->type == step_mngr.items[i])
break;
}
if (i == step_mngr.count) {
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item, "Inval or missing item");
}
return 0;
}
static inline bool
is_tunnel_packet(enum rte_flow_item_type type)
{
if (type == RTE_FLOW_ITEM_TYPE_VXLAN_GPE ||
type == RTE_FLOW_ITEM_TYPE_VXLAN ||
type == RTE_FLOW_ITEM_TYPE_NVGRE ||
type == RTE_FLOW_ITEM_TYPE_GENEVE ||
type == RTE_FLOW_ITEM_TYPE_MPLS)
return true;
return false;
}
/*
* Parse the rule to see if it is a IP or MAC VLAN flow director rule.
* And get the flow director filter info BTW.
* UDP/TCP/SCTP PATTERN:
* The first not void item can be ETH or IPV4 or IPV6
* The second not void item must be IPV4 or IPV6 if the first one is ETH.
* The next not void item could be UDP or TCP or SCTP (optional)
* The next not void item could be RAW (for flexbyte, optional)
* The next not void item must be END.
* A Fuzzy Match pattern can appear at any place before END.
* Fuzzy Match is optional for IPV4 but is required for IPV6
* MAC VLAN PATTERN:
* The first not void item must be ETH.
* The second not void item must be MAC VLAN.
* The next not void item must be END.
* ACTION:
* The first not void action should be QUEUE or DROP.
* The second not void optional action should be MARK,
* mark_id is a uint32_t number.
* The next not void action should be END.
* UDP/TCP/SCTP pattern example:
* ITEM Spec Mask
* ETH NULL NULL
* IPV4 src_addr 192.168.1.20 0xFFFFFFFF
* dst_addr 192.167.3.50 0xFFFFFFFF
* UDP/TCP/SCTP src_port 80 0xFFFF
* dst_port 80 0xFFFF
* END
* MAC VLAN pattern example:
* ITEM Spec Mask
* ETH dst_addr
{0xAC, 0x7B, 0xA1, {0xFF, 0xFF, 0xFF,
0x2C, 0x6D, 0x36} 0xFF, 0xFF, 0xFF}
* MAC VLAN tci 0x2016 0xEFFF
* END
* Other members in mask and spec should set to 0x00.
* Item->last should be NULL.
*/
static int
hns3_parse_fdir_filter(struct rte_eth_dev *dev,
const struct rte_flow_item pattern[],
const struct rte_flow_action actions[],
struct hns3_fdir_rule *rule,
struct rte_flow_error *error)
{
struct hns3_adapter *hns = dev->data->dev_private;
const struct rte_flow_item *item;
struct items_step_mngr step_mngr;
int ret;
/* FDIR is available only in PF driver */
if (hns->is_vf)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
"Fdir not supported in VF");
if (dev->data->dev_conf.fdir_conf.mode != RTE_FDIR_MODE_PERFECT)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM_NUM, NULL,
"fdir_conf.mode isn't perfect");
step_mngr.items = first_items;
step_mngr.count = ARRAY_SIZE(first_items);
for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
if (item->type == RTE_FLOW_ITEM_TYPE_VOID)
continue;
ret = hns3_validate_item(item, step_mngr, error);
if (ret)
return ret;
if (is_tunnel_packet(item->type)) {
ret = hns3_parse_tunnel(item, rule, error);
if (ret)
return ret;
step_mngr.items = tunnel_next_items;
step_mngr.count = ARRAY_SIZE(tunnel_next_items);
} else {
ret = hns3_parse_normal(item, rule, &step_mngr, error);
if (ret)
return ret;
}
}
return hns3_handle_actions(dev, actions, rule, error);
}
void
hns3_filterlist_init(struct rte_eth_dev *dev)
{
struct hns3_process_private *process_list = dev->process_private;
TAILQ_INIT(&process_list->fdir_list);
TAILQ_INIT(&process_list->filter_rss_list);
TAILQ_INIT(&process_list->flow_list);
}
static void
hns3_filterlist_flush(struct rte_eth_dev *dev)
{
struct hns3_process_private *process_list = dev->process_private;
struct hns3_fdir_rule_ele *fdir_rule_ptr;
struct hns3_rss_conf_ele *rss_filter_ptr;
struct hns3_flow_mem *flow_node;
fdir_rule_ptr = TAILQ_FIRST(&process_list->fdir_list);
while (fdir_rule_ptr) {
TAILQ_REMOVE(&process_list->fdir_list, fdir_rule_ptr, entries);
rte_free(fdir_rule_ptr);
fdir_rule_ptr = TAILQ_FIRST(&process_list->fdir_list);
}
rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
while (rss_filter_ptr) {
TAILQ_REMOVE(&process_list->filter_rss_list, rss_filter_ptr,
entries);
rte_free(rss_filter_ptr);
rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
}
flow_node = TAILQ_FIRST(&process_list->flow_list);
while (flow_node) {
TAILQ_REMOVE(&process_list->flow_list, flow_node, entries);
rte_free(flow_node->flow);
rte_free(flow_node);
flow_node = TAILQ_FIRST(&process_list->flow_list);
}
}
static bool
hns3_action_rss_same(const struct rte_flow_action_rss *comp,
const struct rte_flow_action_rss *with)
{
return (comp->func == with->func &&
comp->level == with->level &&
comp->types == with->types &&
comp->key_len == with->key_len &&
comp->queue_num == with->queue_num &&
!memcmp(comp->key, with->key, with->key_len) &&
!memcmp(comp->queue, with->queue,
sizeof(*with->queue) * with->queue_num));
}
static int
hns3_rss_conf_copy(struct hns3_rss_conf *out,
const struct rte_flow_action_rss *in)
{
if (in->key_len > RTE_DIM(out->key) ||
in->queue_num > RTE_DIM(out->queue))
return -EINVAL;
if (in->key == NULL && in->key_len)
return -EINVAL;
out->conf = (struct rte_flow_action_rss) {
.func = in->func,
.level = in->level,
.types = in->types,
.key_len = in->key_len,
.queue_num = in->queue_num,
};
out->conf.queue =
memcpy(out->queue, in->queue,
sizeof(*in->queue) * in->queue_num);
if (in->key)
out->conf.key = memcpy(out->key, in->key, in->key_len);
return 0;
}
/*
* This function is used to parse rss action validatation.
*/
static int
hns3_parse_rss_filter(struct rte_eth_dev *dev,
const struct rte_flow_action *actions,
struct rte_flow_error *error)
{
struct hns3_adapter *hns = dev->data->dev_private;
struct hns3_hw *hw = &hns->hw;
struct hns3_rss_conf *rss_conf = &hw->rss_info;
const struct rte_flow_action_rss *rss;
const struct rte_flow_action *act;
uint32_t act_index = 0;
uint64_t flow_types;
uint16_t n;
NEXT_ITEM_OF_ACTION(act, actions, act_index);
/* Get configuration args from APP cmdline input */
rss = act->conf;
if (rss == NULL || rss->queue_num == 0) {
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
act, "no valid queues");
}
for (n = 0; n < rss->queue_num; n++) {
if (rss->queue[n] < dev->data->nb_rx_queues)
continue;
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
act,
"queue id > max number of queues");
}
/* Parse flow types of RSS */
if (!(rss->types & HNS3_ETH_RSS_SUPPORT) && rss->types)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
act,
"Flow types is unsupported by "
"hns3's RSS");
flow_types = rss->types & HNS3_ETH_RSS_SUPPORT;
if (flow_types != rss->types)
hns3_warn(hw, "RSS flow types(%" PRIx64 ") include unsupported "
"flow types", rss->types);
/* Parse RSS related parameters from RSS configuration */
switch (rss->func) {
case RTE_ETH_HASH_FUNCTION_DEFAULT:
case RTE_ETH_HASH_FUNCTION_TOEPLITZ:
case RTE_ETH_HASH_FUNCTION_SIMPLE_XOR:
break;
default:
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION, act,
"input RSS hash functions are not supported");
}
if (rss->level)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION, act,
"a nonzero RSS encapsulation level is not supported");
if (rss->key_len && rss->key_len != RTE_DIM(rss_conf->key))
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION, act,
"RSS hash key must be exactly 40 bytes");
if (rss->queue_num > RTE_DIM(rss_conf->queue))
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION, act,
"too many queues for RSS context");
act_index++;
/* Check if the next not void action is END */
NEXT_ITEM_OF_ACTION(act, actions, act_index);
if (act->type != RTE_FLOW_ACTION_TYPE_END) {
memset(rss_conf, 0, sizeof(struct hns3_rss_conf));
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
act, "Not supported action.");
}
return 0;
}
static int
hns3_disable_rss(struct hns3_hw *hw)
{
int ret;
/* Redirected the redirection table to queue 0 */
ret = hns3_rss_reset_indir_table(hw);
if (ret)
return ret;
/* Disable RSS */
hw->rss_info.conf.types = 0;
return 0;
}
static void
hns3_parse_rss_key(struct hns3_hw *hw, struct rte_flow_action_rss *rss_conf)
{
if (rss_conf->key == NULL ||
rss_conf->key_len < HNS3_RSS_KEY_SIZE) {
hns3_info(hw, "Default RSS hash key to be set");
rss_conf->key = hns3_hash_key;
rss_conf->key_len = HNS3_RSS_KEY_SIZE;
}
}
static int
hns3_parse_rss_algorithm(struct hns3_hw *hw, enum rte_eth_hash_function *func,
uint8_t *hash_algo)
{
enum rte_eth_hash_function algo_func = *func;
switch (algo_func) {
case RTE_ETH_HASH_FUNCTION_DEFAULT:
/* Keep *hash_algo as what it used to be */
algo_func = hw->rss_info.conf.func;
break;
case RTE_ETH_HASH_FUNCTION_TOEPLITZ:
*hash_algo = HNS3_RSS_HASH_ALGO_TOEPLITZ;
break;
case RTE_ETH_HASH_FUNCTION_SIMPLE_XOR:
*hash_algo = HNS3_RSS_HASH_ALGO_SIMPLE;
break;
default:
hns3_err(hw, "Invalid RSS algorithm configuration(%u)",
algo_func);
return -EINVAL;
}
*func = algo_func;
return 0;
}
static int
hns3_hw_rss_hash_set(struct hns3_hw *hw, struct rte_flow_action_rss *rss_config)
{
uint8_t hash_algo =
(hw->rss_info.conf.func == RTE_ETH_HASH_FUNCTION_TOEPLITZ ?
HNS3_RSS_HASH_ALGO_TOEPLITZ : HNS3_RSS_HASH_ALGO_SIMPLE);
struct hns3_rss_tuple_cfg *tuple;
int ret;
/* Parse hash key */
hns3_parse_rss_key(hw, rss_config);
/* Parse hash algorithm */
ret = hns3_parse_rss_algorithm(hw, &rss_config->func, &hash_algo);
if (ret)
return ret;
ret = hns3_set_rss_algo_key(hw, hash_algo, rss_config->key);
if (ret)
return ret;
/* Update algorithm of hw */
hw->rss_info.conf.func = rss_config->func;
/* Set flow type supported */
tuple = &hw->rss_info.rss_tuple_sets;
ret = hns3_set_rss_tuple_by_rss_hf(hw, tuple, rss_config->types);
if (ret)
hns3_err(hw, "Update RSS tuples by rss hf failed %d", ret);
return ret;
}
static int
hns3_update_indir_table(struct rte_eth_dev *dev,
const struct rte_flow_action_rss *conf, uint16_t num)
{
struct hns3_adapter *hns = dev->data->dev_private;
struct hns3_hw *hw = &hns->hw;
uint8_t indir_tbl[HNS3_RSS_IND_TBL_SIZE];
uint16_t j, allow_rss_queues;
uint8_t queue_id;
uint32_t i;
if (num == 0) {
hns3_err(hw, "No PF queues are configured to enable RSS");
return -ENOTSUP;
}
allow_rss_queues = RTE_MIN(dev->data->nb_rx_queues, hw->rss_size_max);
/* Fill in redirection table */
memcpy(indir_tbl, hw->rss_info.rss_indirection_tbl,
HNS3_RSS_IND_TBL_SIZE);
for (i = 0, j = 0; i < HNS3_RSS_IND_TBL_SIZE; i++, j++) {
j %= num;
if (conf->queue[j] >= allow_rss_queues) {
hns3_err(hw, "Invalid queue id(%u) to be set in "
"redirection table, max number of rss "
"queues: %u", conf->queue[j],
allow_rss_queues);
return -EINVAL;
}
queue_id = conf->queue[j];
indir_tbl[i] = queue_id;
}
return hns3_set_rss_indir_table(hw, indir_tbl, HNS3_RSS_IND_TBL_SIZE);
}
static int
hns3_config_rss_filter(struct rte_eth_dev *dev,
const struct hns3_rss_conf *conf, bool add)
{
struct hns3_adapter *hns = dev->data->dev_private;
struct hns3_hw *hw = &hns->hw;
struct hns3_rss_conf *rss_info;
uint64_t flow_types;
uint16_t num;
int ret;
struct rte_flow_action_rss rss_flow_conf = {
.func = conf->conf.func,
.level = conf->conf.level,
.types = conf->conf.types,
.key_len = conf->conf.key_len,
.queue_num = conf->conf.queue_num,
.key = conf->conf.key_len ?
(void *)(uintptr_t)conf->conf.key : NULL,
.queue = conf->conf.queue,
};
/* The types is Unsupported by hns3' RSS */
if (!(rss_flow_conf.types & HNS3_ETH_RSS_SUPPORT) &&
rss_flow_conf.types) {
hns3_err(hw,
"Flow types(%" PRIx64 ") is unsupported by hns3's RSS",
rss_flow_conf.types);
return -EINVAL;
}
/* Filter the unsupported flow types */
flow_types = rss_flow_conf.types & HNS3_ETH_RSS_SUPPORT;
if (flow_types != rss_flow_conf.types)
hns3_warn(hw, "modified RSS types based on hardware support, "
"requested:%" PRIx64 " configured:%" PRIx64,
rss_flow_conf.types, flow_types);
/* Update the useful flow types */
rss_flow_conf.types = flow_types;
if ((rss_flow_conf.types & ETH_RSS_PROTO_MASK) == 0)
return hns3_disable_rss(hw);
rss_info = &hw->rss_info;
if (!add) {
if (hns3_action_rss_same(&rss_info->conf, &rss_flow_conf)) {
ret = hns3_disable_rss(hw);
if (ret) {
hns3_err(hw, "RSS disable failed(%d)", ret);
return ret;
}
memset(rss_info, 0, sizeof(struct hns3_rss_conf));
return 0;
}
return -EINVAL;
}
/* Get rx queues num */
num = dev->data->nb_rx_queues;
/* Set rx queues to use */
num = RTE_MIN(num, rss_flow_conf.queue_num);
if (rss_flow_conf.queue_num > num)
hns3_warn(hw, "Config queue numbers %u are beyond the scope of truncated",
rss_flow_conf.queue_num);
hns3_info(hw, "Max of contiguous %u PF queues are configured", num);
rte_spinlock_lock(&hw->lock);
/* Update redirection talbe of rss */
ret = hns3_update_indir_table(dev, &rss_flow_conf, num);
if (ret)
goto rss_config_err;
/* Set hash algorithm and flow types by the user's config */
ret = hns3_hw_rss_hash_set(hw, &rss_flow_conf);
if (ret)
goto rss_config_err;
ret = hns3_rss_conf_copy(rss_info, &rss_flow_conf);
if (ret) {
hns3_err(hw, "RSS config init fail(%d)", ret);
goto rss_config_err;
}
rss_config_err:
rte_spinlock_unlock(&hw->lock);
return ret;
}
/* Remove the rss filter */
static int
hns3_clear_rss_filter(struct rte_eth_dev *dev)
{
struct hns3_adapter *hns = dev->data->dev_private;
struct hns3_hw *hw = &hns->hw;
if (hw->rss_info.conf.queue_num == 0)
return 0;
return hns3_config_rss_filter(dev, &hw->rss_info, false);
}
static int
hns3_flow_parse_rss(struct rte_eth_dev *dev,
const struct hns3_rss_conf *conf, bool add)
{
struct hns3_adapter *hns = dev->data->dev_private;
struct hns3_hw *hw = &hns->hw;
bool ret;
/* Action rss same */
ret = hns3_action_rss_same(&hw->rss_info.conf, &conf->conf);
if (ret) {
hns3_err(hw, "Enter duplicate RSS configuration : %d", ret);
return -EINVAL;
}
return hns3_config_rss_filter(dev, conf, add);
}
static int
hns3_flow_args_check(const struct rte_flow_attr *attr,
const struct rte_flow_item pattern[],
const struct rte_flow_action actions[],
struct rte_flow_error *error)
{
if (pattern == NULL)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM_NUM,
NULL, "NULL pattern.");
if (actions == NULL)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_NUM,
NULL, "NULL action.");
if (attr == NULL)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ATTR,
NULL, "NULL attribute.");
return hns3_check_attr(attr, error);
}
/*
* Check if the flow rule is supported by hns3.
* It only checkes the format. Don't guarantee the rule can be programmed into
* the HW. Because there can be no enough room for the rule.
*/
static int
hns3_flow_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
const struct rte_flow_item pattern[],
const struct rte_flow_action actions[],
struct rte_flow_error *error)
{
struct hns3_fdir_rule fdir_rule;
int ret;
ret = hns3_flow_args_check(attr, pattern, actions, error);
if (ret)
return ret;
if (find_rss_action(actions))
return hns3_parse_rss_filter(dev, actions, error);
memset(&fdir_rule, 0, sizeof(struct hns3_fdir_rule));
return hns3_parse_fdir_filter(dev, pattern, actions, &fdir_rule, error);
}
/*
* Create or destroy a flow rule.
* Theorically one rule can match more than one filters.
* We will let it use the filter which it hitt first.
* So, the sequence matters.
*/
static struct rte_flow *
hns3_flow_create(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
const struct rte_flow_item pattern[],
const struct rte_flow_action actions[],
struct rte_flow_error *error)
{
struct hns3_process_private *process_list = dev->process_private;
struct hns3_adapter *hns = dev->data->dev_private;
struct hns3_hw *hw = &hns->hw;
const struct hns3_rss_conf *rss_conf;
struct hns3_fdir_rule_ele *fdir_rule_ptr;
struct hns3_rss_conf_ele *rss_filter_ptr;
struct hns3_flow_mem *flow_node;
const struct rte_flow_action *act;
struct rte_flow *flow;
struct hns3_fdir_rule fdir_rule;
int ret;
ret = hns3_flow_args_check(attr, pattern, actions, error);
if (ret)
return NULL;
flow = rte_zmalloc("hns3 flow", sizeof(struct rte_flow), 0);
if (flow == NULL) {
rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
"Failed to allocate flow memory");
return NULL;
}
flow_node = rte_zmalloc("hns3 flow node",
sizeof(struct hns3_flow_mem), 0);
if (flow_node == NULL) {
rte_flow_error_set(error, ENOMEM,
RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
"Failed to allocate flow list memory");
rte_free(flow);
return NULL;
}
flow_node->flow = flow;
TAILQ_INSERT_TAIL(&process_list->flow_list, flow_node, entries);
act = find_rss_action(actions);
if (act) {
rss_conf = act->conf;
ret = hns3_flow_parse_rss(dev, rss_conf, true);
if (ret)
goto err;
rss_filter_ptr = rte_zmalloc("hns3 rss filter",
sizeof(struct hns3_rss_conf_ele),
0);
if (rss_filter_ptr == NULL) {
hns3_err(hw,
"Failed to allocate hns3_rss_filter memory");
ret = -ENOMEM;
goto err;
}
memcpy(&rss_filter_ptr->filter_info, rss_conf,
sizeof(struct hns3_rss_conf));
TAILQ_INSERT_TAIL(&process_list->filter_rss_list,
rss_filter_ptr, entries);
flow->rule = rss_filter_ptr;
flow->filter_type = RTE_ETH_FILTER_HASH;
return flow;
}
memset(&fdir_rule, 0, sizeof(struct hns3_fdir_rule));
ret = hns3_parse_fdir_filter(dev, pattern, actions, &fdir_rule, error);
if (ret)
goto out;
if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER) {
ret = hns3_counter_new(dev, fdir_rule.act_cnt.shared,
fdir_rule.act_cnt.id, error);
if (ret)
goto out;
flow->counter_id = fdir_rule.act_cnt.id;
}
ret = hns3_fdir_filter_program(hns, &fdir_rule, false);
if (!ret) {
fdir_rule_ptr = rte_zmalloc("hns3 fdir rule",
sizeof(struct hns3_fdir_rule_ele),
0);
if (fdir_rule_ptr == NULL) {
hns3_err(hw, "Failed to allocate fdir_rule memory");
ret = -ENOMEM;
goto err_fdir;
}
memcpy(&fdir_rule_ptr->fdir_conf, &fdir_rule,
sizeof(struct hns3_fdir_rule));
TAILQ_INSERT_TAIL(&process_list->fdir_list,
fdir_rule_ptr, entries);
flow->rule = fdir_rule_ptr;
flow->filter_type = RTE_ETH_FILTER_FDIR;
return flow;
}
err_fdir:
if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER)
hns3_counter_release(dev, fdir_rule.act_cnt.id);
err:
rte_flow_error_set(error, -ret, RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
"Failed to create flow");
out:
TAILQ_REMOVE(&process_list->flow_list, flow_node, entries);
rte_free(flow_node);
rte_free(flow);
return NULL;
}
/* Destroy a flow rule on hns3. */
static int
hns3_flow_destroy(struct rte_eth_dev *dev, struct rte_flow *flow,
struct rte_flow_error *error)
{
struct hns3_process_private *process_list = dev->process_private;
struct hns3_adapter *hns = dev->data->dev_private;
struct hns3_fdir_rule_ele *fdir_rule_ptr;
struct hns3_rss_conf_ele *rss_filter_ptr;
struct hns3_flow_mem *flow_node;
struct hns3_hw *hw = &hns->hw;
enum rte_filter_type filter_type;
struct hns3_fdir_rule fdir_rule;
int ret;
if (flow == NULL)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_HANDLE,
flow, "Flow is NULL");
filter_type = flow->filter_type;
switch (filter_type) {
case RTE_ETH_FILTER_FDIR:
fdir_rule_ptr = (struct hns3_fdir_rule_ele *)flow->rule;
memcpy(&fdir_rule, &fdir_rule_ptr->fdir_conf,
sizeof(struct hns3_fdir_rule));
ret = hns3_fdir_filter_program(hns, &fdir_rule, true);
if (ret)
return rte_flow_error_set(error, EIO,
RTE_FLOW_ERROR_TYPE_HANDLE,
flow,
"Destroy FDIR fail.Try again");
if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER)
hns3_counter_release(dev, fdir_rule.act_cnt.id);
TAILQ_REMOVE(&process_list->fdir_list, fdir_rule_ptr, entries);
rte_free(fdir_rule_ptr);
fdir_rule_ptr = NULL;
break;
case RTE_ETH_FILTER_HASH:
rss_filter_ptr = (struct hns3_rss_conf_ele *)flow->rule;
ret = hns3_config_rss_filter(dev, &hw->rss_info, false);
if (ret)
return rte_flow_error_set(error, EIO,
RTE_FLOW_ERROR_TYPE_HANDLE,
flow,
"Destroy RSS fail.Try again");
TAILQ_REMOVE(&process_list->filter_rss_list, rss_filter_ptr,
entries);
rte_free(rss_filter_ptr);
rss_filter_ptr = NULL;
break;
default:
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_HANDLE, flow,
"Unsupported filter type");
}
TAILQ_FOREACH(flow_node, &process_list->flow_list, entries) {
if (flow_node->flow == flow) {
TAILQ_REMOVE(&process_list->flow_list, flow_node,
entries);
rte_free(flow_node);
flow_node = NULL;
break;
}
}
rte_free(flow);
flow = NULL;
return 0;
}
/* Destroy all flow rules associated with a port on hns3. */
static int
hns3_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error)
{
struct hns3_adapter *hns = dev->data->dev_private;
int ret;
/* FDIR is available only in PF driver */
if (!hns->is_vf) {
ret = hns3_clear_all_fdir_filter(hns);
if (ret) {
rte_flow_error_set(error, ret,
RTE_FLOW_ERROR_TYPE_HANDLE,
NULL, "Failed to flush rule");
return ret;
}
hns3_counter_flush(dev);
}
ret = hns3_clear_rss_filter(dev);
if (ret)
return ret;
hns3_filterlist_flush(dev);
return 0;
}
/* Query an existing flow rule. */
static int
hns3_flow_query(struct rte_eth_dev *dev, struct rte_flow *flow,
const struct rte_flow_action *actions, void *data,
struct rte_flow_error *error)
{
struct rte_flow_query_count *qc;
int ret;
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:
qc = (struct rte_flow_query_count *)data;
ret = hns3_counter_query(dev, flow, qc, error);
if (ret)
return ret;
break;
default:
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION,
actions,
"Query action only support count");
}
}
return 0;
}
static const struct rte_flow_ops hns3_flow_ops = {
.validate = hns3_flow_validate,
.create = hns3_flow_create,
.destroy = hns3_flow_destroy,
.flush = hns3_flow_flush,
.query = hns3_flow_query,
.isolate = NULL,
};
/*
* The entry of flow API.
* @param dev
* Pointer to Ethernet device.
* @return
* 0 on success, a negative errno value otherwise is set.
*/
int
hns3_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
enum rte_filter_op filter_op, void *arg)
{
struct hns3_hw *hw;
int ret = 0;
if (dev == NULL)
return -EINVAL;
hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
switch (filter_type) {
case RTE_ETH_FILTER_GENERIC:
if (filter_op != RTE_ETH_FILTER_GET)
return -EINVAL;
if (hw->adapter_state >= HNS3_NIC_CLOSED)
return -ENODEV;
*(const void **)arg = &hns3_flow_ops;
break;
default:
hns3_err(hw, "Filter type (%d) not supported", filter_type);
ret = -EOPNOTSUPP;
break;
}
return ret;
}
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