#include "netdev-provider.h"
#include "netdev-vport.h"
#include "netlink.h"
+#include "netlink-notifier.h"
#include "netlink-socket.h"
#include "ofpbuf.h"
#include "openflow/openflow.h"
#include "packets.h"
#include "poll-loop.h"
-#include "rtnetlink.h"
#include "rtnetlink-link.h"
#include "socket-util.h"
#include "shash.h"
#define ADVERTISED_Asym_Pause (1 << 14)
#endif
+/* These were introduced in Linux 2.6.24, so they might be missing if we
+ * have old headers. */
+#ifndef ETHTOOL_GFLAGS
+#define ETHTOOL_GFLAGS 0x00000025 /* Get flags bitmap(ethtool_value) */
+#endif
+#ifndef ETHTOOL_SFLAGS
+#define ETHTOOL_SFLAGS 0x00000026 /* Set flags bitmap(ethtool_value) */
+#endif
+
/* This was introduced in Linux 2.6.25, so it might be missing if we have old
* headers. */
#ifndef TC_RTAB_SIZE
#define TC_RTAB_SIZE 1024
#endif
-static struct rtnetlink_notifier netdev_linux_cache_notifier;
+static struct nln_notifier netdev_linux_cache_notifier;
static int cache_notifier_refcount;
enum {
/* Creates system and internal devices. */
static int
-netdev_linux_create(const struct netdev_class *class,
- const char *name, const struct shash *args,
- struct netdev_dev **netdev_devp)
+netdev_linux_create(const struct netdev_class *class, const char *name,
+ struct netdev_dev **netdev_devp)
{
struct netdev_dev_linux *netdev_dev;
int error;
- if (!shash_is_empty(args)) {
- VLOG_WARN("%s: arguments for %s devices should be empty",
- name, class->type);
- }
-
if (!cache_notifier_refcount) {
error = rtnetlink_link_notifier_register(&netdev_linux_cache_notifier,
netdev_linux_cache_cb, NULL);
netdev_dev = xzalloc(sizeof *netdev_dev);
netdev_dev->change_seq = 1;
- netdev_dev_init(&netdev_dev->netdev_dev, name, args, class);
+ netdev_dev_init(&netdev_dev->netdev_dev, name, class);
*netdev_devp = &netdev_dev->netdev_dev;
return 0;
* be unavailable to other reads for tap devices. */
static int
netdev_linux_create_tap(const struct netdev_class *class OVS_UNUSED,
- const char *name, const struct shash *args,
- struct netdev_dev **netdev_devp)
+ const char *name, struct netdev_dev **netdev_devp)
{
struct netdev_dev_linux *netdev_dev;
struct tap_state *state;
struct ifreq ifr;
int error;
- if (!shash_is_empty(args)) {
- VLOG_WARN("%s: arguments for TAP devices should be empty", name);
- }
-
netdev_dev = xzalloc(sizeof *netdev_dev);
state = &netdev_dev->state.tap;
goto error;
}
- netdev_dev_init(&netdev_dev->netdev_dev, name, args, &netdev_tap_class);
+ netdev_dev_init(&netdev_dev->netdev_dev, name, &netdev_tap_class);
*netdev_devp = &netdev_dev->netdev_dev;
return 0;
return 0;
}
+/* Sets the maximum size of transmitted (MTU) for given device using linux
+ * networking ioctl interface.
+ */
+static int
+netdev_linux_set_mtu(const struct netdev *netdev_, int mtu)
+{
+ struct netdev_dev_linux *netdev_dev =
+ netdev_dev_linux_cast(netdev_get_dev(netdev_));
+ struct ifreq ifr;
+ int error;
+
+ ifr.ifr_mtu = mtu;
+ error = netdev_linux_do_ioctl(netdev_get_name(netdev_), &ifr,
+ SIOCSIFMTU, "SIOCSIFMTU");
+ if (error) {
+ return error;
+ }
+
+ netdev_dev->mtu = ifr.ifr_mtu;
+ netdev_dev->cache_valid |= VALID_MTU;
+ return 0;
+}
+
/* Returns the ifindex of 'netdev', if successful, as a positive number.
* On failure, returns a negative errno value. */
static int
\
CREATE, \
netdev_linux_destroy, \
+ NULL, /* get_config */ \
NULL, /* set_config */ \
- NULL, /* config_equal */ \
\
netdev_linux_open, \
netdev_linux_close, \
netdev_linux_set_etheraddr, \
netdev_linux_get_etheraddr, \
netdev_linux_get_mtu, \
+ netdev_linux_set_mtu, \
netdev_linux_get_ifindex, \
netdev_linux_get_carrier, \
netdev_linux_set_miimon_interval, \
int error;
int mtu;
- netdev_get_mtu(netdev, &mtu);
- if (mtu == INT_MAX) {
+ error = netdev_get_mtu(netdev, &mtu);
+ if (error) {
VLOG_WARN_RL(&rl, "cannot set up HTB on device %s that lacks MTU",
netdev_get_name(netdev));
- return EINVAL;
+ return error;
}
memset(&opt, 0, sizeof opt);
const char *max_rate_s = shash_find_data(details, "max-rate");
const char *burst_s = shash_find_data(details, "burst");
const char *priority_s = shash_find_data(details, "priority");
- int mtu;
+ int mtu, error;
- netdev_get_mtu(netdev, &mtu);
- if (mtu == INT_MAX) {
+ error = netdev_get_mtu(netdev, &mtu);
+ if (error) {
VLOG_WARN_RL(&rl, "cannot parse HTB class on device %s that lacks MTU",
netdev_get_name(netdev));
- return EINVAL;
+ return error;
}
/* HTB requires at least an mtu sized min-rate to send any traffic even
}
}
+/* Modifies the 'flag' bit in ethtool's flags field for 'netdev'. If
+ * 'enable' is true, the bit is set. Otherwise, it is cleared. */
+int
+netdev_linux_ethtool_set_flag(struct netdev *netdev, uint32_t flag,
+ const char *flag_name, bool enable)
+{
+ const char *netdev_name = netdev_get_name(netdev);
+ struct ethtool_value evalue;
+ uint32_t new_flags;
+ int error;
+
+ memset(&evalue, 0, sizeof evalue);
+ error = netdev_linux_do_ethtool(netdev_name,
+ (struct ethtool_cmd *)&evalue,
+ ETHTOOL_GFLAGS, "ETHTOOL_GFLAGS");
+ if (error) {
+ return error;
+ }
+
+ evalue.data = new_flags = (evalue.data & ~flag) | (enable ? flag : 0);
+ error = netdev_linux_do_ethtool(netdev_name,
+ (struct ethtool_cmd *)&evalue,
+ ETHTOOL_SFLAGS, "ETHTOOL_SFLAGS");
+ if (error) {
+ return error;
+ }
+
+ memset(&evalue, 0, sizeof evalue);
+ error = netdev_linux_do_ethtool(netdev_name,
+ (struct ethtool_cmd *)&evalue,
+ ETHTOOL_GFLAGS, "ETHTOOL_GFLAGS");
+ if (error) {
+ return error;
+ }
+
+ if (new_flags != evalue.data) {
+ VLOG_WARN_RL(&rl, "attempt to %s ethtool %s flag on network "
+ "device %s failed", enable ? "enable" : "disable",
+ flag_name, netdev_name);
+ return EOPNOTSUPP;
+ }
+
+ return 0;
+}
+
static int
netdev_linux_do_ioctl(const char *name, struct ifreq *ifr, int cmd,
const char *cmd_name)
projects / openvswitch / blobdiff