CVS log for pvfs2/src/io/bmi/bmi_mx/mx.c
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merge with Orange-Branch

Added prototype for BMI_mx_memalloc to keep compiler from complaining.

Problem:  mx address lookup failed when multiple protocols were used at the same time.
Added key_string() function to parse_peername(), which correctly strips the BMI mx address
from a string containing multiple protocols.
Modified File:
  Tag: Orange-Branch
       src/io/bmi/bmi_mx/mx.c

merge with Orange-Branch

Added unused attribute to several variables and functions to prevent the compiling
from complaining about it.

Merged in changes from Orange-Branch. There were a number of bugs fixed there since this branch was created.

merging Orange Branch changes in

initial merge with Orange-Branch. much will be broken

merge of B2O-Blue-Sync,HEAD,and latest of Orange.

merging bmi-experimental-branch to trunk

commiting changes from merge of Orange and Blue into test branch.

merging multiple NIC bmi_mx support to pvfs-2-8-branch

patch from Kazuki Ohta to support multiple NICs in bmi_mx

unexpected msg class support in bmi_mx; untested.  Uses 8 remaining bits in
match info.

merge from HEAD: http://www.pvfs.org/fisheye/changelog/PVFS/?cs=MAIN:pcarns:20090930154442

merge from HEAD: http://www.pvfs.org/fisheye/changelog/PVFS/?cs=MAIN:atchley:20090727142649

merge from HEAD: http://www.pvfs.org/fisheye/changelog/PVFS/?cs=MAIN:atchley:20090716191227

merge from HEAD: http://www.pvfs.org/fisheye/changelog/PVFS/?cs=MAIN:pcarns:20090714161723

merging in "no polling" flag support from trunk to bmi-experimental-branch

Add a flags field to bmi method ops structure.  BMI_METHOD_FLAG_NO_POLLING
can be used to disable implicit busy polling on a particular BMI method.

merged in changes from summer at LANL

* Replaces unex_txs queue & lock with a done_q & lock for each context
  These queues hold completed expected msgs (rx and tx) as well
  as completed unexpected sends per context. This is what was missing
  and caused the errors. Reported by Kazuki Ohta.

* Adds the completion lock and reference count to serialize accesses
  to MX completion functions to prevent races between BMI_test(),
  BMI_cancel(), BMI_testcontext() and BMI_testunexpected(). These
  now call get_completion_token() and release_completion_token().

* Add bmi_error_code_t to msg context (struct bmx_ctx) to store the
  BMI error code rather than rely on the MX status code which is not
  set in BMI_cancel(), for example.

* Added deq_unex_rx() to return a completed unexpected recv if available.

* Added q_completed() to queue completed messages on the appropriate
  done_q or unexpected rx queue. It stores the MX status and BMI
  error.

* Added deq_completed() to return a completed expected msg or completed
  unexpected send.

* Added complete_ctx() which assigns the out variables and does cleanup.
  This reduces code duplication in BMI_test() and BMI_testcontext().

* Remove unused functions: deq_ctx(), q_unex_ctx(), q_canceled_ctx()

* Combined put_idle_[rx|tx]() into put_idle_ctx()

* Eliminate bmi_mx specific logging (keeps PINT_EVENT_*)

Add yet another argument in the unexpected functions.  The "class" will be
used to differentiate different classes of unexpected messages that arrive
at the same host but destined for separate components.  Default API is
unchanged and assumes PVFS uses class value 0.  No method support yet.

cut non-list versions of send and recv from mx method

When queuing unex rxs and txs, cache their MX status. When dequeuing these,
set the local status variable with the cached info.
Fixes bug reported by Kazuki Ohta in iofwd testing.

patch from Scott Atchley to allow bmi_mx to handle large negative tag values.
Fixes bug reported by Kazuki Ohta in iofwd testing.

MX missed a few changes on hints/event merge

merging hints/events code into trunk.

Added.

reverse merge of trunk changes since branch.

reverse merge latest trunk changes to small-file-branch and update msgpair
usage where needed

Merge from HEAD

Set MX_ZOMBIE_SEND=0 so that sends are acked before completing them.
Disconnect if a message fails for any reason.
Change debug level for messages that are cancelled a second time.

Correct handling of some strings to allow servers to cleanly exit

Patch from HEAD and fixed a bug in pvfs2-genconfig script.

Committing patch from Scott Atchley.  Updates mx address management in
server to server communication case.

reverse merge of latest changes from HEAD to he branch.

Change the debug level of connect failures to not include BMX_DB_WARN

Updated branch with code from HEAD

Remove unused variables

Replace enter and exit debug with macros. Add to more functions

Fix reversed args to qlist_add_tail() when queuing unexpected rxs and txs

Handle MX hostnames that do not include :board. Valid bmi_mx storage paths
now incude either mx://hostname:board:ep_id or mx://hostname:ep_id where
hostname[:board] should match the output of mx_info.

hints and events.

syncing small-file-branch back up with trunk at small-file-branch-point2 tag
(reverse merge)

merge a bunch of fixes made to HEAD since 2.7.0.

Enable server-to-server communications. This patch replaces some magic numbers
with macros, uses the MX session number returned from mx_decompose_endpoint_addr2
to determine is a CONN_REQ requires canceling pending rxs, etc., eliminates
checks to prevent servers from acting as clients, and adds completion queues
for unexpected txs and rxs reaped in the wrong functions (txs in testunexpected
and rxs in testcontext).

Do _not_ call bmi_method_addr_forget_callback()

In BMI_mx_cancel(), if it is a send, try to complete it with mx_test()
before using mx_disconnect(). This allows easier reconnecting between
MX and Open-MX.

Delete unused variables, fix usage of mx_get_endpoint_info() again, fix
incorrent memory accounting when freeing the hostname

Eliminate unneeded strcpy(), fix two small memory leaks, add debug statements
when using bmi_method_addr_[reg|forget]_callback(), fix compiler warnings
when using mx_get_endpoint_addr_context()

Add more debug statements when entering/leaving functions

Modified Files:
	mx.c mx.h
	Add static before each function
	change struct method_addr to struct bmi_method_addr where used

Modified Files:
	mx.c mx.h
	Handle bmi_method_addr_forget_callback() properly

Modified Files:
	mx.c mx.h
	Define BMX_MASK as ~0ULL and replace -1ULL with it

Modified Files:
	mx.c
	Add debug statements when entering more functions and when changing
	peer state

Sam's prelude and scheduler updates

Remove unused ops pointer from method addr structure.

get the bmi prefix in there

fixes to the methods that are loved.

bmi cleanups.

Modified Files:
	mx.c

	The last commit reverted id_gen_fast_* to id_gen_safe_*
	This changes tham back to id_gen_fast_*

Modified Files:
	mx.c mx.h

	Sync with Myricom's svn HEAD

	Increase unexpected messages size from 4KB to 8KB to handle small IO
	Increase large IO buffer size from 1MB to 4MB
	Add buffer handling for unexpected messages to remove malloc for
	    unexpected messages
	Improve error reporting and use BMI errnos
	Move completion of unexpected sends after expected sends/recvs

Replace id_gen_safe with id_gen_fast.  id_gen_safe is only needed for ids that are getting handed back to us through the system interfaces.  If our own internal ids (pointers) are getting corrupted or freed...Hello valgrind!

readme patch from scott.  removed or from match variable.

lets try not waiting for unexpected sends.

add an extra check to allow test to be called repeatedly with a zero timeout as long as requests are completing.

mx fixes

Merge HEAD changes to TAS-branch.

walt3 reverse merge from head includes merges of pw's sm changes (no state declarations), cleanup of state machine code, and other general merging/fixes.

Update migration branch to current CVS version

Sync hint-branch to current CVS version

Initial commit of BMI MX implementation provided by Scott and Myricom.  Thanks Scott!