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rte_eth_bond_pmd.c
3912 lines (3287 loc) · 107 KB
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rte_eth_bond_pmd.c
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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2017 Intel Corporation
*/
#include <stdlib.h>
#include <stdbool.h>
#include <netinet/in.h>
#include <rte_mbuf.h>
#include <rte_malloc.h>
#include <ethdev_driver.h>
#include <ethdev_vdev.h>
#include <rte_tcp.h>
#include <rte_udp.h>
#include <rte_ip.h>
#include <rte_ip_frag.h>
#include <rte_devargs.h>
#include <rte_kvargs.h>
#include <rte_bus_vdev.h>
#include <rte_alarm.h>
#include <rte_cycles.h>
#include <rte_string_fns.h>
#include "rte_eth_bond.h"
#include "eth_bond_private.h"
#include "eth_bond_8023ad_private.h"
#define REORDER_PERIOD_MS 10
#define DEFAULT_POLLING_INTERVAL_10_MS (10)
#define BOND_MAX_MAC_ADDRS 16
#define HASH_L4_PORTS(h) ((h)->src_port ^ (h)->dst_port)
/* Table for statistics in mode 5 TLB */
static uint64_t tlb_last_obytets[RTE_MAX_ETHPORTS];
static inline size_t
get_vlan_offset(struct rte_ether_hdr *eth_hdr, uint16_t *proto)
{
size_t vlan_offset = 0;
if (rte_cpu_to_be_16(RTE_ETHER_TYPE_VLAN) == *proto ||
rte_cpu_to_be_16(RTE_ETHER_TYPE_QINQ) == *proto) {
struct rte_vlan_hdr *vlan_hdr =
(struct rte_vlan_hdr *)(eth_hdr + 1);
vlan_offset = sizeof(struct rte_vlan_hdr);
*proto = vlan_hdr->eth_proto;
if (rte_cpu_to_be_16(RTE_ETHER_TYPE_VLAN) == *proto) {
vlan_hdr = vlan_hdr + 1;
*proto = vlan_hdr->eth_proto;
vlan_offset += sizeof(struct rte_vlan_hdr);
}
}
return vlan_offset;
}
static uint16_t
bond_ethdev_rx_burst(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
{
struct bond_dev_private *internals;
uint16_t num_rx_total = 0;
uint16_t slave_count;
uint16_t active_slave;
int i;
/* Cast to structure, containing bonded device's port id and queue id */
struct bond_rx_queue *bd_rx_q = (struct bond_rx_queue *)queue;
internals = bd_rx_q->dev_private;
slave_count = internals->active_slave_count;
active_slave = bd_rx_q->active_slave;
for (i = 0; i < slave_count && nb_pkts; i++) {
uint16_t num_rx_slave;
/* Offset of pointer to *bufs increases as packets are received
* from other slaves */
num_rx_slave =
rte_eth_rx_burst(internals->active_slaves[active_slave],
bd_rx_q->queue_id,
bufs + num_rx_total, nb_pkts);
num_rx_total += num_rx_slave;
nb_pkts -= num_rx_slave;
if (++active_slave == slave_count)
active_slave = 0;
}
if (++bd_rx_q->active_slave >= slave_count)
bd_rx_q->active_slave = 0;
return num_rx_total;
}
static uint16_t
bond_ethdev_rx_burst_active_backup(void *queue, struct rte_mbuf **bufs,
uint16_t nb_pkts)
{
struct bond_dev_private *internals;
/* Cast to structure, containing bonded device's port id and queue id */
struct bond_rx_queue *bd_rx_q = (struct bond_rx_queue *)queue;
internals = bd_rx_q->dev_private;
return rte_eth_rx_burst(internals->current_primary_port,
bd_rx_q->queue_id, bufs, nb_pkts);
}
static inline uint8_t
is_lacp_packets(uint16_t ethertype, uint8_t subtype, struct rte_mbuf *mbuf)
{
const uint16_t ether_type_slow_be =
rte_be_to_cpu_16(RTE_ETHER_TYPE_SLOW);
return !((mbuf->ol_flags & RTE_MBUF_F_RX_VLAN) ? mbuf->vlan_tci : 0) &&
(ethertype == ether_type_slow_be &&
(subtype == SLOW_SUBTYPE_MARKER || subtype == SLOW_SUBTYPE_LACP));
}
/*****************************************************************************
* Flow director's setup for mode 4 optimization
*/
static struct rte_flow_item_eth flow_item_eth_type_8023ad = {
.dst.addr_bytes = { 0 },
.src.addr_bytes = { 0 },
.type = RTE_BE16(RTE_ETHER_TYPE_SLOW),
};
static struct rte_flow_item_eth flow_item_eth_mask_type_8023ad = {
.dst.addr_bytes = { 0 },
.src.addr_bytes = { 0 },
.type = 0xFFFF,
};
static struct rte_flow_item flow_item_8023ad[] = {
{
.type = RTE_FLOW_ITEM_TYPE_ETH,
.spec = &flow_item_eth_type_8023ad,
.last = NULL,
.mask = &flow_item_eth_mask_type_8023ad,
},
{
.type = RTE_FLOW_ITEM_TYPE_END,
.spec = NULL,
.last = NULL,
.mask = NULL,
}
};
const struct rte_flow_attr flow_attr_8023ad = {
.group = 0,
.priority = 0,
.ingress = 1,
.egress = 0,
.reserved = 0,
};
int
bond_ethdev_8023ad_flow_verify(struct rte_eth_dev *bond_dev,
uint16_t slave_port) {
struct rte_eth_dev_info slave_info;
struct rte_flow_error error;
struct bond_dev_private *internals = bond_dev->data->dev_private;
const struct rte_flow_action_queue lacp_queue_conf = {
.index = 0,
};
const struct rte_flow_action actions[] = {
{
.type = RTE_FLOW_ACTION_TYPE_QUEUE,
.conf = &lacp_queue_conf
},
{
.type = RTE_FLOW_ACTION_TYPE_END,
}
};
int ret = rte_flow_validate(slave_port, &flow_attr_8023ad,
flow_item_8023ad, actions, &error);
if (ret < 0) {
RTE_BOND_LOG(ERR, "%s: %s (slave_port=%d queue_id=%d)",
__func__, error.message, slave_port,
internals->mode4.dedicated_queues.rx_qid);
return -1;
}
ret = rte_eth_dev_info_get(slave_port, &slave_info);
if (ret != 0) {
RTE_BOND_LOG(ERR,
"%s: Error during getting device (port %u) info: %s\n",
__func__, slave_port, strerror(-ret));
return ret;
}
if (slave_info.max_rx_queues < bond_dev->data->nb_rx_queues ||
slave_info.max_tx_queues < bond_dev->data->nb_tx_queues) {
RTE_BOND_LOG(ERR,
"%s: Slave %d capabilities doesn't allow to allocate additional queues",
__func__, slave_port);
return -1;
}
return 0;
}
int
bond_8023ad_slow_pkt_hw_filter_supported(uint16_t port_id) {
struct rte_eth_dev *bond_dev = &rte_eth_devices[port_id];
struct bond_dev_private *internals = bond_dev->data->dev_private;
struct rte_eth_dev_info bond_info;
uint16_t idx;
int ret;
/* Verify if all slaves in bonding supports flow director and */
if (internals->slave_count > 0) {
ret = rte_eth_dev_info_get(bond_dev->data->port_id, &bond_info);
if (ret != 0) {
RTE_BOND_LOG(ERR,
"%s: Error during getting device (port %u) info: %s\n",
__func__, bond_dev->data->port_id,
strerror(-ret));
return ret;
}
internals->mode4.dedicated_queues.rx_qid = bond_info.nb_rx_queues;
internals->mode4.dedicated_queues.tx_qid = bond_info.nb_tx_queues;
for (idx = 0; idx < internals->slave_count; idx++) {
if (bond_ethdev_8023ad_flow_verify(bond_dev,
internals->slaves[idx].port_id) != 0)
return -1;
}
}
return 0;
}
int
bond_ethdev_8023ad_flow_set(struct rte_eth_dev *bond_dev, uint16_t slave_port) {
struct rte_flow_error error;
struct bond_dev_private *internals = bond_dev->data->dev_private;
struct rte_flow_action_queue lacp_queue_conf = {
.index = internals->mode4.dedicated_queues.rx_qid,
};
const struct rte_flow_action actions[] = {
{
.type = RTE_FLOW_ACTION_TYPE_QUEUE,
.conf = &lacp_queue_conf
},
{
.type = RTE_FLOW_ACTION_TYPE_END,
}
};
internals->mode4.dedicated_queues.flow[slave_port] = rte_flow_create(slave_port,
&flow_attr_8023ad, flow_item_8023ad, actions, &error);
if (internals->mode4.dedicated_queues.flow[slave_port] == NULL) {
RTE_BOND_LOG(ERR, "bond_ethdev_8023ad_flow_set: %s "
"(slave_port=%d queue_id=%d)",
error.message, slave_port,
internals->mode4.dedicated_queues.rx_qid);
return -1;
}
return 0;
}
static inline uint16_t
rx_burst_8023ad(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts,
bool dedicated_rxq)
{
/* Cast to structure, containing bonded device's port id and queue id */
struct bond_rx_queue *bd_rx_q = (struct bond_rx_queue *)queue;
struct bond_dev_private *internals = bd_rx_q->dev_private;
struct rte_eth_dev *bonded_eth_dev =
&rte_eth_devices[internals->port_id];
struct rte_ether_addr *bond_mac = bonded_eth_dev->data->mac_addrs;
struct rte_ether_hdr *hdr;
const uint16_t ether_type_slow_be =
rte_be_to_cpu_16(RTE_ETHER_TYPE_SLOW);
uint16_t num_rx_total = 0; /* Total number of received packets */
uint16_t slaves[RTE_MAX_ETHPORTS];
uint16_t slave_count, idx;
uint8_t collecting; /* current slave collecting status */
const uint8_t promisc = rte_eth_promiscuous_get(internals->port_id);
const uint8_t allmulti = rte_eth_allmulticast_get(internals->port_id);
uint8_t subtype;
uint16_t i;
uint16_t j;
uint16_t k;
/* Copy slave list to protect against slave up/down changes during tx
* bursting */
slave_count = internals->active_slave_count;
memcpy(slaves, internals->active_slaves,
sizeof(internals->active_slaves[0]) * slave_count);
idx = bd_rx_q->active_slave;
if (idx >= slave_count) {
bd_rx_q->active_slave = 0;
idx = 0;
}
for (i = 0; i < slave_count && num_rx_total < nb_pkts; i++) {
j = num_rx_total;
collecting = ACTOR_STATE(&bond_mode_8023ad_ports[slaves[idx]],
COLLECTING);
/* Read packets from this slave */
num_rx_total += rte_eth_rx_burst(slaves[idx], bd_rx_q->queue_id,
&bufs[num_rx_total], nb_pkts - num_rx_total);
for (k = j; k < 2 && k < num_rx_total; k++)
rte_prefetch0(rte_pktmbuf_mtod(bufs[k], void *));
/* Handle slow protocol packets. */
while (j < num_rx_total) {
if (j + 3 < num_rx_total)
rte_prefetch0(rte_pktmbuf_mtod(bufs[j + 3], void *));
hdr = rte_pktmbuf_mtod(bufs[j], struct rte_ether_hdr *);
subtype = ((struct slow_protocol_frame *)hdr)->slow_protocol.subtype;
/* Remove packet from array if:
* - it is slow packet but no dedicated rxq is present,
* - slave is not in collecting state,
* - bonding interface is not in promiscuous mode:
* - packet is unicast and address does not match,
* - packet is multicast and bonding interface
* is not in allmulti,
*/
if (unlikely(
(!dedicated_rxq &&
is_lacp_packets(hdr->ether_type, subtype,
bufs[j])) ||
!collecting ||
(!promisc &&
((rte_is_unicast_ether_addr(&hdr->dst_addr) &&
!rte_is_same_ether_addr(bond_mac,
&hdr->dst_addr)) ||
(!allmulti &&
rte_is_multicast_ether_addr(&hdr->dst_addr)))))) {
if (hdr->ether_type == ether_type_slow_be) {
bond_mode_8023ad_handle_slow_pkt(
internals, slaves[idx], bufs[j]);
} else
rte_pktmbuf_free(bufs[j]);
/* Packet is managed by mode 4 or dropped, shift the array */
num_rx_total--;
if (j < num_rx_total) {
memmove(&bufs[j], &bufs[j + 1], sizeof(bufs[0]) *
(num_rx_total - j));
}
} else
j++;
}
if (unlikely(++idx == slave_count))
idx = 0;
}
if (++bd_rx_q->active_slave >= slave_count)
bd_rx_q->active_slave = 0;
return num_rx_total;
}
static uint16_t
bond_ethdev_rx_burst_8023ad(void *queue, struct rte_mbuf **bufs,
uint16_t nb_pkts)
{
return rx_burst_8023ad(queue, bufs, nb_pkts, false);
}
static uint16_t
bond_ethdev_rx_burst_8023ad_fast_queue(void *queue, struct rte_mbuf **bufs,
uint16_t nb_pkts)
{
return rx_burst_8023ad(queue, bufs, nb_pkts, true);
}
#if defined(RTE_LIBRTE_BOND_DEBUG_ALB) || defined(RTE_LIBRTE_BOND_DEBUG_ALB_L1)
uint32_t burstnumberRX;
uint32_t burstnumberTX;
#ifdef RTE_LIBRTE_BOND_DEBUG_ALB
static void
arp_op_name(uint16_t arp_op, char *buf, size_t buf_len)
{
switch (arp_op) {
case RTE_ARP_OP_REQUEST:
strlcpy(buf, "ARP Request", buf_len);
return;
case RTE_ARP_OP_REPLY:
strlcpy(buf, "ARP Reply", buf_len);
return;
case RTE_ARP_OP_REVREQUEST:
strlcpy(buf, "Reverse ARP Request", buf_len);
return;
case RTE_ARP_OP_REVREPLY:
strlcpy(buf, "Reverse ARP Reply", buf_len);
return;
case RTE_ARP_OP_INVREQUEST:
strlcpy(buf, "Peer Identify Request", buf_len);
return;
case RTE_ARP_OP_INVREPLY:
strlcpy(buf, "Peer Identify Reply", buf_len);
return;
default:
break;
}
strlcpy(buf, "Unknown", buf_len);
return;
}
#endif
#define MaxIPv4String 16
static void
ipv4_addr_to_dot(uint32_t be_ipv4_addr, char *buf, uint8_t buf_size)
{
uint32_t ipv4_addr;
ipv4_addr = rte_be_to_cpu_32(be_ipv4_addr);
snprintf(buf, buf_size, "%d.%d.%d.%d", (ipv4_addr >> 24) & 0xFF,
(ipv4_addr >> 16) & 0xFF, (ipv4_addr >> 8) & 0xFF,
ipv4_addr & 0xFF);
}
#define MAX_CLIENTS_NUMBER 128
uint8_t active_clients;
struct client_stats_t {
uint16_t port;
uint32_t ipv4_addr;
uint32_t ipv4_rx_packets;
uint32_t ipv4_tx_packets;
};
struct client_stats_t client_stats[MAX_CLIENTS_NUMBER];
static void
update_client_stats(uint32_t addr, uint16_t port, uint32_t *TXorRXindicator)
{
int i = 0;
for (; i < MAX_CLIENTS_NUMBER; i++) {
if ((client_stats[i].ipv4_addr == addr) && (client_stats[i].port == port)) {
/* Just update RX packets number for this client */
if (TXorRXindicator == &burstnumberRX)
client_stats[i].ipv4_rx_packets++;
else
client_stats[i].ipv4_tx_packets++;
return;
}
}
/* We have a new client. Insert him to the table, and increment stats */
if (TXorRXindicator == &burstnumberRX)
client_stats[active_clients].ipv4_rx_packets++;
else
client_stats[active_clients].ipv4_tx_packets++;
client_stats[active_clients].ipv4_addr = addr;
client_stats[active_clients].port = port;
active_clients++;
}
#ifdef RTE_LIBRTE_BOND_DEBUG_ALB
#define MODE6_DEBUG(info, src_ip, dst_ip, eth_h, arp_op, port, burstnumber) \
rte_log(RTE_LOG_DEBUG, bond_logtype, \
"%s port:%d SrcMAC:" RTE_ETHER_ADDR_PRT_FMT " SrcIP:%s " \
"DstMAC:" RTE_ETHER_ADDR_PRT_FMT " DstIP:%s %s %d\n", \
info, \
port, \
RTE_ETHER_ADDR_BYTES(ð_h->src_addr), \
src_ip, \
RTE_ETHER_ADDR_BYTES(ð_h->dst_addr), \
dst_ip, \
arp_op, ++burstnumber)
#endif
static void
mode6_debug(const char __rte_unused *info,
struct rte_ether_hdr *eth_h, uint16_t port,
uint32_t __rte_unused *burstnumber)
{
struct rte_ipv4_hdr *ipv4_h;
#ifdef RTE_LIBRTE_BOND_DEBUG_ALB
struct rte_arp_hdr *arp_h;
char dst_ip[16];
char ArpOp[24];
char buf[16];
#endif
char src_ip[16];
uint16_t ether_type = eth_h->ether_type;
uint16_t offset = get_vlan_offset(eth_h, ðer_type);
#ifdef RTE_LIBRTE_BOND_DEBUG_ALB
strlcpy(buf, info, 16);
#endif
if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4)) {
ipv4_h = (struct rte_ipv4_hdr *)((char *)(eth_h + 1) + offset);
ipv4_addr_to_dot(ipv4_h->src_addr, src_ip, MaxIPv4String);
#ifdef RTE_LIBRTE_BOND_DEBUG_ALB
ipv4_addr_to_dot(ipv4_h->dst_addr, dst_ip, MaxIPv4String);
MODE6_DEBUG(buf, src_ip, dst_ip, eth_h, "", port, *burstnumber);
#endif
update_client_stats(ipv4_h->src_addr, port, burstnumber);
}
#ifdef RTE_LIBRTE_BOND_DEBUG_ALB
else if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_ARP)) {
arp_h = (struct rte_arp_hdr *)((char *)(eth_h + 1) + offset);
ipv4_addr_to_dot(arp_h->arp_data.arp_sip, src_ip, MaxIPv4String);
ipv4_addr_to_dot(arp_h->arp_data.arp_tip, dst_ip, MaxIPv4String);
arp_op_name(rte_be_to_cpu_16(arp_h->arp_opcode),
ArpOp, sizeof(ArpOp));
MODE6_DEBUG(buf, src_ip, dst_ip, eth_h, ArpOp, port, *burstnumber);
}
#endif
}
#endif
static uint16_t
bond_ethdev_rx_burst_alb(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
{
struct bond_rx_queue *bd_rx_q = (struct bond_rx_queue *)queue;
struct bond_dev_private *internals = bd_rx_q->dev_private;
struct rte_ether_hdr *eth_h;
uint16_t ether_type, offset;
uint16_t nb_recv_pkts;
int i;
nb_recv_pkts = bond_ethdev_rx_burst(queue, bufs, nb_pkts);
for (i = 0; i < nb_recv_pkts; i++) {
eth_h = rte_pktmbuf_mtod(bufs[i], struct rte_ether_hdr *);
ether_type = eth_h->ether_type;
offset = get_vlan_offset(eth_h, ðer_type);
if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_ARP)) {
#if defined(RTE_LIBRTE_BOND_DEBUG_ALB) || defined(RTE_LIBRTE_BOND_DEBUG_ALB_L1)
mode6_debug("RX ARP:", eth_h, bufs[i]->port, &burstnumberRX);
#endif
bond_mode_alb_arp_recv(eth_h, offset, internals);
}
#if defined(RTE_LIBRTE_BOND_DEBUG_ALB) || defined(RTE_LIBRTE_BOND_DEBUG_ALB_L1)
else if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4))
mode6_debug("RX IPv4:", eth_h, bufs[i]->port, &burstnumberRX);
#endif
}
return nb_recv_pkts;
}
static uint16_t
bond_ethdev_tx_burst_round_robin(void *queue, struct rte_mbuf **bufs,
uint16_t nb_pkts)
{
struct bond_dev_private *internals;
struct bond_tx_queue *bd_tx_q;
struct rte_mbuf *slave_bufs[RTE_MAX_ETHPORTS][nb_pkts];
uint16_t slave_nb_pkts[RTE_MAX_ETHPORTS] = { 0 };
uint16_t num_of_slaves;
uint16_t slaves[RTE_MAX_ETHPORTS];
uint16_t num_tx_total = 0, num_tx_slave;
static int slave_idx = 0;
int i, cslave_idx = 0, tx_fail_total = 0;
bd_tx_q = (struct bond_tx_queue *)queue;
internals = bd_tx_q->dev_private;
/* Copy slave list to protect against slave up/down changes during tx
* bursting */
num_of_slaves = internals->active_slave_count;
memcpy(slaves, internals->active_slaves,
sizeof(internals->active_slaves[0]) * num_of_slaves);
if (num_of_slaves < 1)
return num_tx_total;
/* Populate slaves mbuf with which packets are to be sent on it */
for (i = 0; i < nb_pkts; i++) {
cslave_idx = (slave_idx + i) % num_of_slaves;
slave_bufs[cslave_idx][(slave_nb_pkts[cslave_idx])++] = bufs[i];
}
/* increment current slave index so the next call to tx burst starts on the
* next slave */
slave_idx = ++cslave_idx;
/* Send packet burst on each slave device */
for (i = 0; i < num_of_slaves; i++) {
if (slave_nb_pkts[i] > 0) {
num_tx_slave = rte_eth_tx_burst(slaves[i], bd_tx_q->queue_id,
slave_bufs[i], slave_nb_pkts[i]);
/* if tx burst fails move packets to end of bufs */
if (unlikely(num_tx_slave < slave_nb_pkts[i])) {
int tx_fail_slave = slave_nb_pkts[i] - num_tx_slave;
tx_fail_total += tx_fail_slave;
memcpy(&bufs[nb_pkts - tx_fail_total],
&slave_bufs[i][num_tx_slave],
tx_fail_slave * sizeof(bufs[0]));
}
num_tx_total += num_tx_slave;
}
}
return num_tx_total;
}
static uint16_t
bond_ethdev_tx_burst_active_backup(void *queue,
struct rte_mbuf **bufs, uint16_t nb_pkts)
{
struct bond_dev_private *internals;
struct bond_tx_queue *bd_tx_q;
bd_tx_q = (struct bond_tx_queue *)queue;
internals = bd_tx_q->dev_private;
if (internals->active_slave_count < 1)
return 0;
return rte_eth_tx_burst(internals->current_primary_port, bd_tx_q->queue_id,
bufs, nb_pkts);
}
static inline uint16_t
ether_hash(struct rte_ether_hdr *eth_hdr)
{
unaligned_uint16_t *word_src_addr =
(unaligned_uint16_t *)eth_hdr->src_addr.addr_bytes;
unaligned_uint16_t *word_dst_addr =
(unaligned_uint16_t *)eth_hdr->dst_addr.addr_bytes;
return (word_src_addr[0] ^ word_dst_addr[0]) ^
(word_src_addr[1] ^ word_dst_addr[1]) ^
(word_src_addr[2] ^ word_dst_addr[2]);
}
static inline uint32_t
ipv4_hash(struct rte_ipv4_hdr *ipv4_hdr)
{
return ipv4_hdr->src_addr ^ ipv4_hdr->dst_addr;
}
static inline uint32_t
ipv6_hash(struct rte_ipv6_hdr *ipv6_hdr)
{
unaligned_uint32_t *word_src_addr =
(unaligned_uint32_t *)&(ipv6_hdr->src_addr[0]);
unaligned_uint32_t *word_dst_addr =
(unaligned_uint32_t *)&(ipv6_hdr->dst_addr[0]);
return (word_src_addr[0] ^ word_dst_addr[0]) ^
(word_src_addr[1] ^ word_dst_addr[1]) ^
(word_src_addr[2] ^ word_dst_addr[2]) ^
(word_src_addr[3] ^ word_dst_addr[3]);
}
void
burst_xmit_l2_hash(struct rte_mbuf **buf, uint16_t nb_pkts,
uint16_t slave_count, uint16_t *slaves)
{
struct rte_ether_hdr *eth_hdr;
uint32_t hash;
int i;
for (i = 0; i < nb_pkts; i++) {
eth_hdr = rte_pktmbuf_mtod(buf[i], struct rte_ether_hdr *);
hash = ether_hash(eth_hdr);
slaves[i] = (hash ^= hash >> 8) % slave_count;
}
}
void
burst_xmit_l23_hash(struct rte_mbuf **buf, uint16_t nb_pkts,
uint16_t slave_count, uint16_t *slaves)
{
uint16_t i;
struct rte_ether_hdr *eth_hdr;
uint16_t proto;
size_t vlan_offset;
uint32_t hash, l3hash;
for (i = 0; i < nb_pkts; i++) {
eth_hdr = rte_pktmbuf_mtod(buf[i], struct rte_ether_hdr *);
l3hash = 0;
proto = eth_hdr->ether_type;
hash = ether_hash(eth_hdr);
vlan_offset = get_vlan_offset(eth_hdr, &proto);
if (rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4) == proto) {
struct rte_ipv4_hdr *ipv4_hdr = (struct rte_ipv4_hdr *)
((char *)(eth_hdr + 1) + vlan_offset);
l3hash = ipv4_hash(ipv4_hdr);
} else if (rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6) == proto) {
struct rte_ipv6_hdr *ipv6_hdr = (struct rte_ipv6_hdr *)
((char *)(eth_hdr + 1) + vlan_offset);
l3hash = ipv6_hash(ipv6_hdr);
}
hash = hash ^ l3hash;
hash ^= hash >> 16;
hash ^= hash >> 8;
slaves[i] = hash % slave_count;
}
}
void
burst_xmit_l34_hash(struct rte_mbuf **buf, uint16_t nb_pkts,
uint16_t slave_count, uint16_t *slaves)
{
struct rte_ether_hdr *eth_hdr;
uint16_t proto;
size_t vlan_offset;
int i;
struct rte_udp_hdr *udp_hdr;
struct rte_tcp_hdr *tcp_hdr;
uint32_t hash, l3hash, l4hash;
for (i = 0; i < nb_pkts; i++) {
eth_hdr = rte_pktmbuf_mtod(buf[i], struct rte_ether_hdr *);
size_t pkt_end = (size_t)eth_hdr + rte_pktmbuf_data_len(buf[i]);
proto = eth_hdr->ether_type;
vlan_offset = get_vlan_offset(eth_hdr, &proto);
l3hash = 0;
l4hash = 0;
if (rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4) == proto) {
struct rte_ipv4_hdr *ipv4_hdr = (struct rte_ipv4_hdr *)
((char *)(eth_hdr + 1) + vlan_offset);
size_t ip_hdr_offset;
l3hash = ipv4_hash(ipv4_hdr);
/* there is no L4 header in fragmented packet */
if (likely(rte_ipv4_frag_pkt_is_fragmented(ipv4_hdr)
== 0)) {
ip_hdr_offset = (ipv4_hdr->version_ihl
& RTE_IPV4_HDR_IHL_MASK) *
RTE_IPV4_IHL_MULTIPLIER;
if (ipv4_hdr->next_proto_id == IPPROTO_TCP) {
tcp_hdr = (struct rte_tcp_hdr *)
((char *)ipv4_hdr +
ip_hdr_offset);
if ((size_t)tcp_hdr + sizeof(*tcp_hdr)
< pkt_end)
l4hash = HASH_L4_PORTS(tcp_hdr);
} else if (ipv4_hdr->next_proto_id ==
IPPROTO_UDP) {
udp_hdr = (struct rte_udp_hdr *)
((char *)ipv4_hdr +
ip_hdr_offset);
if ((size_t)udp_hdr + sizeof(*udp_hdr)
< pkt_end)
l4hash = HASH_L4_PORTS(udp_hdr);
}
}
} else if (rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6) == proto) {
struct rte_ipv6_hdr *ipv6_hdr = (struct rte_ipv6_hdr *)
((char *)(eth_hdr + 1) + vlan_offset);
l3hash = ipv6_hash(ipv6_hdr);
if (ipv6_hdr->proto == IPPROTO_TCP) {
tcp_hdr = (struct rte_tcp_hdr *)(ipv6_hdr + 1);
l4hash = HASH_L4_PORTS(tcp_hdr);
} else if (ipv6_hdr->proto == IPPROTO_UDP) {
udp_hdr = (struct rte_udp_hdr *)(ipv6_hdr + 1);
l4hash = HASH_L4_PORTS(udp_hdr);
}
}
hash = l3hash ^ l4hash;
hash ^= hash >> 16;
hash ^= hash >> 8;
slaves[i] = hash % slave_count;
}
}
struct bwg_slave {
uint64_t bwg_left_int;
uint64_t bwg_left_remainder;
uint16_t slave;
};
void
bond_tlb_activate_slave(struct bond_dev_private *internals) {
int i;
for (i = 0; i < internals->active_slave_count; i++) {
tlb_last_obytets[internals->active_slaves[i]] = 0;
}
}
static int
bandwidth_cmp(const void *a, const void *b)
{
const struct bwg_slave *bwg_a = a;
const struct bwg_slave *bwg_b = b;
int64_t diff = (int64_t)bwg_b->bwg_left_int - (int64_t)bwg_a->bwg_left_int;
int64_t diff2 = (int64_t)bwg_b->bwg_left_remainder -
(int64_t)bwg_a->bwg_left_remainder;
if (diff > 0)
return 1;
else if (diff < 0)
return -1;
else if (diff2 > 0)
return 1;
else if (diff2 < 0)
return -1;
else
return 0;
}
static void
bandwidth_left(uint16_t port_id, uint64_t load, uint8_t update_idx,
struct bwg_slave *bwg_slave)
{
struct rte_eth_link link_status;
int ret;
ret = rte_eth_link_get_nowait(port_id, &link_status);
if (ret < 0) {
RTE_BOND_LOG(ERR, "Slave (port %u) link get failed: %s",
port_id, rte_strerror(-ret));
return;
}
uint64_t link_bwg = link_status.link_speed * 1000000ULL / 8;
if (link_bwg == 0)
return;
link_bwg = link_bwg * (update_idx+1) * REORDER_PERIOD_MS;
bwg_slave->bwg_left_int = (link_bwg - 1000*load) / link_bwg;
bwg_slave->bwg_left_remainder = (link_bwg - 1000*load) % link_bwg;
}
static void
bond_ethdev_update_tlb_slave_cb(void *arg)
{
struct bond_dev_private *internals = arg;
struct rte_eth_stats slave_stats;
struct bwg_slave bwg_array[RTE_MAX_ETHPORTS];
uint16_t slave_count;
uint64_t tx_bytes;
uint8_t update_stats = 0;
uint16_t slave_id;
uint16_t i;
internals->slave_update_idx++;
if (internals->slave_update_idx >= REORDER_PERIOD_MS)
update_stats = 1;
for (i = 0; i < internals->active_slave_count; i++) {
slave_id = internals->active_slaves[i];
rte_eth_stats_get(slave_id, &slave_stats);
tx_bytes = slave_stats.obytes - tlb_last_obytets[slave_id];
bandwidth_left(slave_id, tx_bytes,
internals->slave_update_idx, &bwg_array[i]);
bwg_array[i].slave = slave_id;
if (update_stats) {
tlb_last_obytets[slave_id] = slave_stats.obytes;
}
}
if (update_stats == 1)
internals->slave_update_idx = 0;
slave_count = i;
qsort(bwg_array, slave_count, sizeof(bwg_array[0]), bandwidth_cmp);
for (i = 0; i < slave_count; i++)
internals->tlb_slaves_order[i] = bwg_array[i].slave;
rte_eal_alarm_set(REORDER_PERIOD_MS * 1000, bond_ethdev_update_tlb_slave_cb,
(struct bond_dev_private *)internals);
}
static uint16_t
bond_ethdev_tx_burst_tlb(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
{
struct bond_tx_queue *bd_tx_q = (struct bond_tx_queue *)queue;
struct bond_dev_private *internals = bd_tx_q->dev_private;
struct rte_eth_dev *primary_port =
&rte_eth_devices[internals->primary_port];
uint16_t num_tx_total = 0;
uint16_t i, j;
uint16_t num_of_slaves = internals->active_slave_count;
uint16_t slaves[RTE_MAX_ETHPORTS];
struct rte_ether_hdr *ether_hdr;
struct rte_ether_addr primary_slave_addr;
struct rte_ether_addr active_slave_addr;
if (num_of_slaves < 1)
return num_tx_total;
memcpy(slaves, internals->tlb_slaves_order,
sizeof(internals->tlb_slaves_order[0]) * num_of_slaves);
rte_ether_addr_copy(primary_port->data->mac_addrs, &primary_slave_addr);
if (nb_pkts > 3) {
for (i = 0; i < 3; i++)
rte_prefetch0(rte_pktmbuf_mtod(bufs[i], void*));
}
for (i = 0; i < num_of_slaves; i++) {
rte_eth_macaddr_get(slaves[i], &active_slave_addr);
for (j = num_tx_total; j < nb_pkts; j++) {
if (j + 3 < nb_pkts)
rte_prefetch0(rte_pktmbuf_mtod(bufs[j+3], void*));
ether_hdr = rte_pktmbuf_mtod(bufs[j],
struct rte_ether_hdr *);
if (rte_is_same_ether_addr(ðer_hdr->src_addr,
&primary_slave_addr))
rte_ether_addr_copy(&active_slave_addr,
ðer_hdr->src_addr);
#if defined(RTE_LIBRTE_BOND_DEBUG_ALB) || defined(RTE_LIBRTE_BOND_DEBUG_ALB_L1)
mode6_debug("TX IPv4:", ether_hdr, slaves[i], &burstnumberTX);
#endif
}
num_tx_total += rte_eth_tx_burst(slaves[i], bd_tx_q->queue_id,
bufs + num_tx_total, nb_pkts - num_tx_total);
if (num_tx_total == nb_pkts)
break;
}
return num_tx_total;
}
void
bond_tlb_disable(struct bond_dev_private *internals)
{
rte_eal_alarm_cancel(bond_ethdev_update_tlb_slave_cb, internals);
}
void
bond_tlb_enable(struct bond_dev_private *internals)
{
bond_ethdev_update_tlb_slave_cb(internals);
}
static uint16_t
bond_ethdev_tx_burst_alb(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
{
struct bond_tx_queue *bd_tx_q = (struct bond_tx_queue *)queue;
struct bond_dev_private *internals = bd_tx_q->dev_private;
struct rte_ether_hdr *eth_h;
uint16_t ether_type, offset;
struct client_data *client_info;
/*
* We create transmit buffers for every slave and one additional to send
* through tlb. In worst case every packet will be send on one port.
*/
struct rte_mbuf *slave_bufs[RTE_MAX_ETHPORTS + 1][nb_pkts];
uint16_t slave_bufs_pkts[RTE_MAX_ETHPORTS + 1] = { 0 };
/*
* We create separate transmit buffers for update packets as they won't
* be counted in num_tx_total.
*/
struct rte_mbuf *update_bufs[RTE_MAX_ETHPORTS][ALB_HASH_TABLE_SIZE];
uint16_t update_bufs_pkts[RTE_MAX_ETHPORTS] = { 0 };