linux.git/net/rds/threads.c, branch v4.13

rds: tcp: various endian-ness fixes

2017-06-16T16:45:15+00:00

Found when testing between sparc and x86 machines on different
subnets, so the address comparison patterns hit the corner cases and
brought out some bugs fixed by this patch.

Signed-off-by: Sowmini Varadhan 
Tested-by: Imanti Mendez 
Acked-by: Santosh Shilimkar 
Signed-off-by: David S. Miller

rds: tcp: canonical connection order for all paths with index > 0

2017-04-03T02:41:00+00:00

The rds_connect_worker() has a bug in the check that enforces the
canonical connection order described in the comments of
rds_tcp_state_change(). The intention is to make sure that all
the multipath connections are always initiated by the smaller IP
address via rds_start_mprds. To achieve this, rds_connection_worker
should check that cp_index > 0.

Signed-off-by: Sowmini Varadhan 
Acked-by: Santosh Shilimkar 
Signed-off-by: David S. Miller

rds: Remove duplicate prefix from rds_conn_path_error use

2016-10-17T15:07:22+00:00

rds_conn_path_error already prefixes "RDS:" to the output.

Signed-off-by: Joe Perches 
Acked-by: Sowmini Varadhan 
Acked-by: Santosh Shilimkar 
Signed-off-by: David S. Miller

RDS: TCP: Enable multipath RDS for TCP

2016-07-15T18:36:58+00:00

Use RDS probe-ping to compute how many paths may be used with
the peer, and to synchronously start the multiple paths. If mprds is
supported, hash outgoing traffic to one of multiple paths in rds_sendmsg()
when multipath RDS is supported by the transport.

CC: Santosh Shilimkar 
Signed-off-by: Sowmini Varadhan 
Acked-by: Santosh Shilimkar 
Signed-off-by: David S. Miller

RDS: TCP: Simplify reconnect to avoid duelling reconnnect attempts

2016-07-01T20:45:17+00:00

When reconnecting, the peer with the smaller IP address will initiate
the reconnect, to avoid needless duelling SYN issues.

Acked-by: Santosh Shilimkar 
Signed-off-by: Sowmini Varadhan 
Signed-off-by: David S. Miller

RDS: TCP: Hooks to set up a single connection path

2016-07-01T20:45:17+00:00

This patch adds ->conn_path_connect callbacks in the rds_transport
that are used to set up a single connection path.

Acked-by: Santosh Shilimkar 
Signed-off-by: Sowmini Varadhan 
Signed-off-by: David S. Miller

RDS: TCP: make receive path use the rds_conn_path

2016-07-01T20:45:17+00:00

The ->sk_user_data contains a pointer to the rds_conn_path
for the socket. Use this consistently in the rds_tcp_data_ready
callbacks to get the rds_conn_path for rds_recv_incoming.

Acked-by: Santosh Shilimkar 
Signed-off-by: Sowmini Varadhan 
Signed-off-by: David S. Miller

RDS: Update rds_conn_shutdown to work with rds_conn_path

2016-06-15T06:50:44+00:00

This commit changes rds_conn_shutdown to take a rds_conn_path *
argument, allowing it to shutdown paths other than c_path[0] for
MP-capable transports.

Signed-off-by: Sowmini Varadhan 
Signed-off-by: David S. Miller

RDS: Add rds_conn_path_error()

2016-06-15T06:50:43+00:00

rds_conn_path_error() is the MP-aware analog of rds_conn_error,
to be used by multipath-capable callers.

Signed-off-by: Sowmini Varadhan 
Signed-off-by: David S. Miller

RDS: Pass rds_conn_path to rds_send_xmit()

2016-06-15T06:50:43+00:00

Pass a struct rds_conn_path to rds_send_xmit so that MP capable
transports can transmit packets on something other than c_path[0].
The eventual goal for MP capable transports is to hash the rds
socket to a path based on the bound local address/port, and use
this path as the argument to rds_send_xmit()

Signed-off-by: Sowmini Varadhan 
Signed-off-by: David S. Miller