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/*
* Copyright (c) 2019 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef NETDEV_LINUX_PRIVATE_H
#define NETDEV_LINUX_PRIVATE_H 1
#include <linux/filter.h>
#include <linux/gen_stats.h>
#include <linux/if_ether.h>
#include <linux/if_tun.h>
#include <linux/types.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
#include <stdint.h>
#include <stdbool.h>
#include "dp-packet.h"
#include "netdev-afxdp.h"
#include "netdev-afxdp-pool.h"
#include "netdev-provider.h"
#include "netdev-vport.h"
#include "openvswitch/thread.h"
#include "ovs-atomic.h"
#include "timer.h"
struct netdev;
/* The maximum packet length is 16 bits */
#define LINUX_RXQ_TSO_MAX_LEN 65535
struct netdev_rxq_linux {
struct netdev_rxq up;
bool is_tap;
int fd;
struct dp_packet *aux_bufs[NETDEV_MAX_BURST]; /* Preallocated TSO
packets. */
};
int netdev_linux_construct(struct netdev *);
void netdev_linux_run(const struct netdev_class *);
int get_stats_via_netlink(const struct netdev *netdev_,
struct netdev_stats *stats);
struct netdev_linux {
struct netdev up;
/* Protects all members below. */
struct ovs_mutex mutex;
unsigned int cache_valid;
bool miimon; /* Link status of last poll. */
long long int miimon_interval; /* Miimon Poll rate. Disabled if <= 0. */
struct timer miimon_timer;
int netnsid; /* Network namespace ID. */
/* The following are figured out "on demand" only. They are only valid
* when the corresponding VALID_* bit in 'cache_valid' is set. */
int ifindex;
struct eth_addr etheraddr;
int mtu;
unsigned int ifi_flags;
long long int carrier_resets;
uint32_t kbits_rate; /* Policing data - kbps */
uint32_t kbits_burst;
uint32_t kpkts_rate; /* Policing data - kpps */
uint32_t kpkts_burst;
int vport_stats_error; /* Cached error code from vport_get_stats().
0 or an errno value. */
int netdev_mtu_error; /* Cached error code from SIOCGIFMTU
* or SIOCSIFMTU.
*/
int ether_addr_error; /* Cached error code from set/get etheraddr. */
int netdev_policing_error; /* Cached error code from set policing. */
int get_features_error; /* Cached error code from ETHTOOL_GSET. */
int get_ifindex_error; /* Cached error code from SIOCGIFINDEX. */
enum netdev_features current; /* Cached from ETHTOOL_GSET. */
enum netdev_features advertised; /* Cached from ETHTOOL_GSET. */
enum netdev_features supported; /* Cached from ETHTOOL_GSET. */
struct ethtool_drvinfo drvinfo; /* Cached from ETHTOOL_GDRVINFO. */
struct tc *tc;
/* For devices of class netdev_tap_class only. */
int tap_fd;
bool present; /* If the device is present in the namespace */
uint64_t tx_dropped; /* tap device can drop if the iface is down */
uint64_t rx_dropped; /* Packets dropped while recv from kernel. */
/* LAG information. */
bool is_lag_master; /* True if the netdev is a LAG master. */
int numa_id; /* NUMA node id. */
#ifdef HAVE_AF_XDP
/* AF_XDP information. */
struct xsk_socket_info **xsks;
int requested_n_rxq;
enum afxdp_mode xdp_mode; /* Configured AF_XDP mode. */
enum afxdp_mode requested_xdp_mode; /* Requested AF_XDP mode. */
enum afxdp_mode xdp_mode_in_use; /* Effective AF_XDP mode. */
bool use_need_wakeup;
bool requested_need_wakeup;
struct netdev_afxdp_tx_lock *tx_locks; /* Array of locks for TX queues. */
#endif
};
static bool
is_netdev_linux_class(const struct netdev_class *netdev_class)
{
return netdev_class->run == netdev_linux_run;
}
static struct netdev_linux *
netdev_linux_cast(const struct netdev *netdev)
{
ovs_assert(is_netdev_linux_class(netdev_get_class(netdev)));
return CONTAINER_OF(netdev, struct netdev_linux, up);
}
static struct netdev_rxq_linux *
netdev_rxq_linux_cast(const struct netdev_rxq *rx)
{
ovs_assert(is_netdev_linux_class(netdev_get_class(rx->netdev)));
return CONTAINER_OF(rx, struct netdev_rxq_linux, up);
}
#endif /* netdev-linux-private.h */
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