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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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939463016b
This commit changes the data receiver repath behavior to occur after receiving a single duplicate. This can help recover ACK connectivity quicker if a TLP was sent along a nonworking path. For instance, consider the case where we have an initially nonworking forward path and reverse path and subsequently switch to only working forward paths. Before this patch we would have the following behavior. +---------+--------+--------+----------+----------+----------+ | Event | For FL | Rev FL | FP Works | RP Works | Data Del | +---------+--------+--------+----------+----------+----------+ | Initial | A | 1 | N | N | 0 | +---------+--------+--------+----------+----------+----------+ | TLP | A | 1 | N | N | 0 | +---------+--------+--------+----------+----------+----------+ | RTO 1 | B | 1 | Y | N | 1 | +---------+--------+--------+----------+----------+----------+ | RTO 2 | C | 1 | Y | N | 2 | +---------+--------+--------+----------+----------+----------+ | RTO 3 | D | 2 | Y | Y | 3 | +---------+--------+--------+----------+----------+----------+ This patch gets rid of at least RTO 3, avoiding additional unnecessary repaths of a working forward path to a (potentially) nonworking one. In addition, this commit changes the behavior to avoid repathing upon rx of duplicate data if the local endpoint is in CA_Loss (in which case the RTOs will already be changing the outgoing flowlabel). Signed-off-by: David Morley <morleyd@google.com> Signed-off-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: Yuchung Cheng <ycheng@google.com> Tested-by: David Morley <morleyd@google.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
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| 6lowpan | ||
| 9p | ||
| 802 | ||
| 8021q | ||
| appletalk | ||
| atm | ||
| ax25 | ||
| batman-adv | ||
| bluetooth | ||
| bpf | ||
| bpfilter | ||
| bridge | ||
| caif | ||
| can | ||
| ceph | ||
| core | ||
| dcb | ||
| dccp | ||
| devlink | ||
| dns_resolver | ||
| dsa | ||
| ethernet | ||
| ethtool | ||
| handshake | ||
| hsr | ||
| ieee802154 | ||
| ife | ||
| ipv4 | ||
| ipv6 | ||
| iucv | ||
| kcm | ||
| key | ||
| l2tp | ||
| l3mdev | ||
| lapb | ||
| llc | ||
| mac80211 | ||
| mac802154 | ||
| mctp | ||
| mpls | ||
| mptcp | ||
| ncsi | ||
| netfilter | ||
| netlabel | ||
| netlink | ||
| netrom | ||
| nfc | ||
| nsh | ||
| openvswitch | ||
| packet | ||
| phonet | ||
| psample | ||
| qrtr | ||
| rds | ||
| rfkill | ||
| rose | ||
| rxrpc | ||
| sched | ||
| sctp | ||
| smc | ||
| strparser | ||
| sunrpc | ||
| switchdev | ||
| tipc | ||
| tls | ||
| unix | ||
| vmw_vsock | ||
| wireless | ||
| x25 | ||
| xdp | ||
| xfrm | ||
| compat.c | ||
| devres.c | ||
| Kconfig | ||
| Kconfig.debug | ||
| Makefile | ||
| socket.c | ||
| sysctl_net.c | ||