Merge pull request ofiwg#1951 from a-ilango/master

verbs/RDM: Update Readme, news and man pages.

NEWS.md

@@ -113,6 +113,12 @@ alternatives to validating your installation.
 - Support the case where the user creates only a send or recv queue for the
   endpoint.
 - Fix an issue where RMA reads were not working on iWARP cards.
+- verbs/RDM
+  - Add support for RMA operations.
+  - Add support for fi_cq_sread and fi_cq_sreadfrom
+  - Rework connection management to make it work with fabtests and also allow
+    connection to self.
+  - Other bug fixes and performance improvements.
 
 v1.2.0, Thu Jan 7, 2016
 =======================

README.md

@@ -230,3 +230,23 @@ provider will not be built. If `<directory>` is specified, then check in the
 directory and check for `libnl` version 3. If version 3 is not found, then
 check for version 1. If no `<directory>` argument is specified, then this
 option is redundant with `--with-usnic`.
+
+### verbs
+
+***
+
+The verbs provider enables applications using OFI to be run over any verbs
+hardware (Infiniband, iWarp, etc). It uses the Linux Verbs API for network
+transport and provides a translation of OFI calls to appropriate verbs API calls.
+It uses librdmacm for communication management and libibverbs for other control
+and data transfer operations.
+
+See the `fi_verbs(7)` man page for more details.
+
+#### Dependencies
+
+- The verbs provider requires libibverbs (v1.1.8 or newer) and librdmacm (v1.0.16
+  or newer). If you are compiling Libfabric from source and want to enable verbs
+  support, you will also need the matching header files for the above two libraries.
+  If the libraries and header files are not in default paths, specify them in CFLAGS,
+  LDFLAGS and LD_LIBRARY_PATH environment variables.

man/fi_verbs.7.md

@@ -22,7 +22,7 @@ and data transfer operations.
 The verbs provider supports a subset of OFI features.
 
 *Endpoint types*
-: FI_EP_MSG, FI_EP_RDM (Experimental support for only FI_TAGGED interface).
+: FI_EP_MSG, FI_EP_RDM (Experimental support FI_TAGGED and FI_RMA interfaces).
 
 *Endpoint capabilities*
 : FI_MSG, FI_RMA, FI_ATOMIC.
@@ -72,6 +72,14 @@ The verbs provider supports a subset of OFI features.
 : Application has to make sure CQs are not overrun as this cannot be detected
   by the provider.
 
+*RDM*
+: The RDM support for verbs have the following limitations:
+  * iWARP is not supported yet.
+  * Supports iovs of only size 1.
+  * Max data transfer size is 1 GB
+  * Not thread safe.
+  * Data and flags arguments are ignored
+
 # SEE ALSO
 
 [`fabric`(7)](fabric.7.html),