glusterfs.git/transport/ib-verbs/src/ib-verbs.c, branch v3.7dev

structuring of protocol - 2

2010-05-04T06:40:05+00:00

* 'transports/' and 'auth/' moved to xlators/protocol/
* transport.{c,h}, authenticate.{c,h}, protocol.h moved to
    xlators/protocol/lib/src/

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

Memory accounting changes

2010-04-23T13:32:52+00:00

Memory accounting Changes. Thanks to Vinayak Hegde and Csaba Henk for their
contributions.

Signed-off-by: Vijay Bellur 
Signed-off-by: Anand V. Avati 

BUG: 329 (Replacing memory allocation functions with mem-type functions)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=329

Hardcoded infiniband port is now handled dynamically by searching for active ports.

2010-03-31T16:29:36+00:00

* If user specifies a port then that port will be used regardless of which port is active.
* If user doesn't specify any port then any one of the active ports is used.

Signed-off-by: Harshavardhana 
Signed-off-by: Anand V. Avati 

BUG: 793 (Infiniband port handling should be dynamic by picking up from active ports)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=793

transport/ib-verbs: assign to qpreg before accessing it in __ib_verbs_lookup_peer.

2009-11-19T10:57:45+00:00

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

BUG: 381 (glusterfs crash in ib-verbs)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=381

transport/ib-verbs: fix race-condition resulting in freeing of transport while it was still being used.

2009-11-16T08:41:36+00:00

- while handling a failed work completion status, the transport is
    disconnected. But further down in the code, the transport is still
    used. There can be a possibility that transport might've been freed
    by the time control reaches this point. More detailed description of
    events leading to this situation can be found at
    http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=381

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

BUG: 381 (glusterfs crash in ib-verbs)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=381

transport/ib-verbs: synchronize ib_verbs_recv_completion_proc with ib_verbs_receive so that the former doesn't overwrite the pointer from which latter reads.

2009-11-16T08:41:32+00:00

- There can be a condition wherein,
    1. the thread executing ib_verbs_recv_completion_proc (thr 1) stores the
       buffer pointer and notifies the upper translators about a POLLIN event.
    2. the thread waiting for events on socket (thr 2) calls transport_receive,
       but in ib_verbs_receive it has not still read the data.
    3. thr 1 receives work completion event for another work request and
       overwrites the buffer pointer.
    4. thr 2 reads from the new pointer there by missing the data stored in
       buffer pointed by pointer which got overwritten.

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

BUG: 382 (Data can be lost before it is read in ib_verbs_receive.)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=382

Changed occurrences of Z Research to Gluster.

2009-10-07T10:54:49+00:00

Signed-off-by: Anand V. Avati

transport/ib-verbs: initialize fini member of new-transports created during accepting client connections.

2009-09-15T06:33:04+00:00

- This bug used to cause a memory leak of 2 * sizeof(ib_verbs_private_t) for each new client connection.

Signed-off-by: Anand V. Avati 

BUG: 259 (Memory leak on server side when there are large number of disconnections from clients)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=259

ib-verbs: handle failure of ibv_create_qp gracefully.

2009-09-02T17:30:15+00:00

Signed-off-by: Anand V. Avati 

BUG: 217 (crash in ib_verbs_create_qp)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=217

increased ib-verbs buffer size

2009-08-05T00:07:04+00:00

Noticed that in few cases, where ib-verbs doesn't handle a bigger
sized buffer to be sent across, which happens without problem in
tcp. Caused frame losses in the case where server's reply msg was
bigger, hence the msg got dropped at the server end. With this patch
ib-verbs buffer size is fixed to 512KB. (4 x page-size)

Signed-off-by: Anand V. Avati 

BUG: 190 (missing frames due to larger reply message size.. (ib-verbs))
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=190