glusterfs.git/rpc/rpc-transport/rdma/src, branch v3.1.4qa3

rpc-transport/rdma: handle cases where peer is NULL in send_completion.

2011-03-12T13:10:39+00:00

- There can be valid cases where peer is NULL - For eg., race b/w pollin
    received on handshake socket and as a result transport getting disconnected
    and handling of a send/recv completion on the same qp for some previous
    read/write - in send/recv_completion_process. Hence we should be checking
    for a valid peer pointer before accessing it.

Signed-off-by: Raghavendra G 
Signed-off-by: Vijay Bellur 

BUG: 2514 ()
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2514

rdma : prevent confusing logs when both 'poll_in' and 'poll_err' are received.

2010-12-28T04:51:11+00:00

Signed-off-by: Amar Tumballi 
Signed-off-by: Anand V. Avati 

BUG: 875 (Implement a new protocol to provide proper backward/forward compatibility)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=875

rpc-transport/rdma: QP configuration changes.

2010-12-13T04:07:45+00:00

- set send and recv count to 4K.
  - set max_send_sge of QP to 2 since for msgs of type RDMA_NOMSG, there
    can be two vectors - rpc header and message from program.

Signed-off-by: Raghavendra G 
Signed-off-by: Anand V. Avati 

BUG: 2197 (applications running on large number of clients simultaneously result in ibv_post_send errors on server.)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2197

rpc-transport/rdma: add informative debug messages when posting of send requests fail.

2010-12-13T04:07:39+00:00

Signed-off-by: Raghavendra G 
Signed-off-by: Anand V. Avati 

BUG: 2197 (applications running on large number of clients simultaneously result in ibv_post_send errors on server.)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2197

rpc-transport: don't merge payload iobuf and iobuf which holds program header into single iobref.

2010-11-25T08:34:09+00:00

- io-cache holds a reference on iobref passed from transport layer. Hence,
   two iobufs are accounted instead of one in calculated used cache size.

Signed-off-by: Raghavendra G 
Signed-off-by: Anand V. Avati 

BUG: 2135 ()
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2135

rpc-transport/rdma: set the default quota of recv buffers to 128.

2010-11-09T10:12:11+00:00

- since quota is returned once the reply is recieved, 32 is too less value.

Signed-off-by: Raghavendra G 
Signed-off-by: Anand V. Avati 

BUG: 2060 (Infiniteband errors on large file find)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2060

rpc-transport/rdma: create request_context only if message contains read chunks or write chunks.

2010-11-08T04:15:13+00:00

Signed-off-by: Raghavendra G 
Signed-off-by: Anand V. Avati 

BUG: 1992 (glusterd crashed while submitting a callback.)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1992

rpc-transport/rdma: Fix 2KB as threshold size for msgs that can be transferred inline.

2010-11-08T04:15:08+00:00

- Any fop/mop that can result a reply whose size is greater than this threshold
    allocates and submits a buffer along with the request to receive reply.

Signed-off-by: Raghavendra G 
Signed-off-by: Anand V. Avati 

BUG: 513 (Introduce 0 copy rdma)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=513

rpc-transport/rdma: increment post->ctx.count in a loop doint rdma_read.

2010-11-08T04:15:02+00:00

- incrementing by the number of read chunks even before doing rdma read will
    cause issues since post->ctx.count is used while posting rdma read.

Signed-off-by: Raghavendra G 
Signed-off-by: Anand V. Avati 

BUG: 1877 (data corruption while running arequal.)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1877

rpc-transport: fix race-condition between rdma-read completion and updating the count of number of vectors to be passed to rpc.

2010-10-29T10:42:22+00:00

- If rdma read completes before incrementing the vector count, the count
    value sent to rpc will be improper. For fops like write, this may result
    in missing out a vector to be written, thereby causing data corruption.

Signed-off-by: Raghavendra G 
Signed-off-by: Anand V. Avati 

BUG: 1877 (data corruption while running arequal.)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1877