diff options
| author | Vladimir Oltean <vladimir.oltean@nxp.com> | 2022-07-31 15:41:05 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-08-04 05:20:12 +0300 |
| commit | 06799a9085e12a778fe2851db550ab5911ad28fe (patch) | |
| tree | ef4ea93c41d047816fe97ce25ec2d9f7a40130dd /include/net | |
| parent | f86d1fbbe7858884d6754534a0afbb74fc30bc26 (diff) | |
| download | linux-06799a9085e12a778fe2851db550ab5911ad28fe.tar.xz | |
net: bonding: replace dev_trans_start() with the jiffies of the last ARP/NS
The bonding driver piggybacks on time stamps kept by the network stack
for the purpose of the netdev TX watchdog, and this is problematic
because it does not work with NETIF_F_LLTX devices.
It is hard to say why the driver looks at dev_trans_start() of the
slave->dev, considering that this is updated even by non-ARP/NS probes
sent by us, and even by traffic not sent by us at all (for example PTP
on physical slave devices). ARP monitoring in active-backup mode appears
to still work even if we track only the last TX time of actual ARP
probes.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/bonding.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/include/net/bonding.h b/include/net/bonding.h index 6e78d657aa05..afd606df149a 100644 --- a/include/net/bonding.h +++ b/include/net/bonding.h @@ -161,8 +161,9 @@ struct slave { struct net_device *dev; /* first - useful for panic debug */ struct bonding *bond; /* our master */ int delay; - /* all three in jiffies */ + /* all 4 in jiffies */ unsigned long last_link_up; + unsigned long last_tx; unsigned long last_rx; unsigned long target_last_arp_rx[BOND_MAX_ARP_TARGETS]; s8 link; /* one of BOND_LINK_XXXX */ @@ -540,6 +541,16 @@ static inline unsigned long slave_last_rx(struct bonding *bond, return slave->last_rx; } +static inline void slave_update_last_tx(struct slave *slave) +{ + WRITE_ONCE(slave->last_tx, jiffies); +} + +static inline unsigned long slave_last_tx(struct slave *slave) +{ + return READ_ONCE(slave->last_tx); +} + #ifdef CONFIG_NET_POLL_CONTROLLER static inline netdev_tx_t bond_netpoll_send_skb(const struct slave *slave, struct sk_buff *skb) |