From: Rupert Dance Date: Mon, 23 Nov 2015 15:09:27 +0000 (-0800) Subject: Updated RN for uDAPL version 2.1.7 X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=2712522858724db63e6397dbcb01a653d2d9fab8;p=~tnikolova%2Fdocs%2F.git Updated RN for uDAPL version 2.1.7 Signed-off-by: Rupert Dance --- diff --git a/release_notes/uDAPL_release_notes.txt b/release_notes/uDAPL_release_notes.txt index 1520684..7d065c2 100644 --- a/release_notes/uDAPL_release_notes.txt +++ b/release_notes/uDAPL_release_notes.txt @@ -1,20 +1,36 @@ - Release Notes for - OFED 3.18 DAPL Release 2.1.5 - June 2015 + README/Release Notes + OFED 3.18 DAPL Release 2.1.7 + Sept 2015 User space libraries/utilities for Direct Access Transport (DAT) v2.0. DAT is a transport-independent, platform-independent Application Programming Interface that supports RDMA (remote direct memory access) devices. Note: v1.2 is no longer supported and will not be included with OFED releases - MIC support has been added in dapl-2.1.0, see README.mcm for build and install details. - - MIC support is provided with the new MCM provider and MPXYD service. + MIC support is provided with the new MCM provider and MPXYD service, since dapl-2.1.0. MCM requires the Intel(R) MPSS 3.x (YOCTO) release for Linux to be installed on your system. MPSS 3.x for Linux can be downloaded from: http://software.intel.com/mic-developer For latest documentation and packages: //www.openfabrics.org/downloads/dapl/ + ================= + 1.0 Release Notes + ================= + + dapl-2.1.7 changes include dtest improvement and CCL Proxy P2P inline support: + + - Add dtest -W option for rdma write pinpong test, + new options with -W include -a (all data sizes) -i (incremental size) + - CCL Proxy small message latency improvment with Proxy2Proxy inline support + for message sizes < 96 bytes, reduces MPI pingpong single byte latency + for MFO devices by 27%. + + dapl-2.1.6 changes include MIC support for full offload mode + + - Add support for Truescale qib devices with no CCL Direct verbs support on MIC. + - Enhancement for inside the box transfers without IB adapter via ibscif. + - Add DAPL_NETWORK_NODES, DAPL_NETWORK_PPN environment variables. + dapl-2.1.5 changes include improvements for large scale UD communication management: - AH caching, reduced memory footprint (grows as needed) @@ -24,29 +40,10 @@ Tested on 1200n 28ppn cluster, AlltoAll Intel MPI, UD mode. Both static and dynamic modes, over 500m UD QP connections. - - dapl-2.1.5 ChangeLog - --------------- - dat.conf: update comments regarding versions - dtest: add logging of provider private data size with -v - scm: remove use of msg.resv field for process id logging - cma: report correct CM req private data size on query - mpxyd: memset ib_wr structure before post_send on WC and WR requests - mcm: add HST side provider support for device without inline data capability - ucm: CM changes for UD extended port space and indexer - ucm: add device support for new port space hash table - ucm: allocate/free AH hash table for UD endpoint types - ucm: check for AH caching when destroying via UD extension - ucm: optimizations for large scale UD communication management - mpxyd: use wr opcode instead of wc opcode to support logging on error cases - mcm: HST->MXS mode, using RDMA_WRITE_WITH_IMM, fails with dtest -w - dapl: aarch64 support for linux - dapltest: add scripts to dist, set default device to IPoIB - mpxyd: add wc_flags to proxy work completions - - Build Notes: - ------------ + ========== + 2.0 BUILD: + ========== # NON_DEBUG build/install example for x86_64, OFED targets ./configure --prefix /usr --sysconf=/etc --libdir /usr/lib64 LDFLAGS=-L/usr/lib64 CPPFLAGS="-I/usr/include" @@ -60,8 +57,9 @@ ./configure --prefix /usr --sysconf=/etc --libdir /usr/lib64 LDFLAGS=-L/usr/lib64 CPPFLAGS="-I/usr/include -DDAPL_COUNTERS" make install - Provider descriptions and PROS/CONS (cma, scm, ucm) - --------------------------------------------------- + ========================================================= + 3.0 Provider descriptions and CM results (cma, scm, ucm): + ========================================================= 1. CMA - uses OFA rdma_cm to setup QP's. IPoIB, ARP, and SA queries required. @@ -155,21 +153,23 @@ 16 Connect times (1120): Total 0.0630 per 0.0001 CPS=17765.12 32 Connect times (4800): Total 0.2632 per 0.0001 CPS=18236.54 - BKM for build and running new DAPL library on your cluster without any impact on existing OFED install: - ------------------------------------------------------------------------------------------------------- - + =================================================================================================== + 4.0 BKM for installing new DAPL library on your cluster without any impact on existing OFED install: + ==================================================================================================== + Note: example for user /home/user1, (assumes /home/user1 is exported) and MLX4 adapter, port 1 - Download latest 2.1.x package: http://www.openfabrics.org/downloads/dapl/dapl-2.1.5.tar.gz + Download latest 2.1.x package: http://www.openfabrics.org/downloads/dapl/dapl-2.1.6.tar.gz untar in /home/user1 - cd /home/user1/dapl-2.1.5 + cd /home/user1/dapl-2.1.6 ./configure LDFLAGS=-L/usr/lib64 CPPFLAGS="-I/usr/include" make Create /home/user1/dat.conf with following 3 lines. (entries with path to new libraries): ofa-v2-mlx4_0-1u u2.0 nonthreadsafe default /home/user1/dapl-2.1.5/dapl/udapl/.libs/libdaploucm.so.2 dapl.2.0 "mlx4_0 1" "" + ofa-v2-mlx4_0-1m u2.0 nonthreadsafe default /home/user1/dapl-2.1.5/dapl/udapl/.libs/libdaplomcm.so.2 dapl.2.0 "mlx4_0 1" "" ofa-v2-mlx4_0-1 u2.0 nonthreadsafe default /home/user1/dapl-2.1.5/dapl/udapl/.libs/libdaploscm.so.2 dapl.2.0 "mlx4_0 1" "" ofa-v2-ib0 u2.0 nonthreadsafe default /home/user1/dapl-2.1.5/dapl/udapl/.libs/libdaplcma.so.1 dapl.2.0 "ib0 0" "" @@ -178,22 +178,28 @@ setenv DAT_OVERRIDE=/home/user1/dat.conf setenv LD_LIBRARY_PATH=/home/user1/dapl-2.1.5/dapl/udapl/.libs:$LD_LIBRARY_PATH - If running Intel MPI and uDAPL socket cm, set the following: + If running Intel MPI and uDAPL IB UD cm, set the following (recommended): - setenv I_MPI_DAPL_PROVIDER=ofa-v2-mlx4_0-1 + setenv I_MPI_DAPL_PROVIDER=ofa-v2-mlx4_0-1u + + If running Intel MPI and uDAPL IB mcm with MIC, set the following: - or if running Intel MPI and uDAPL IB UD cm, set the following (recommended): + setenv I_MPI_DAPL_PROVIDER=ofa-v2-mlx4_0-1m + + If running Intel MPI and uDAPL socket cm, set the following: - setenv I_MPI_DAPL_PROVIDER=ofa-v2-mlx4_0-1u + setenv I_MPI_DAPL_PROVIDER=ofa-v2-mlx4_0-1 - or if running Intel MPI and uDAPL rdma_cm, set the following: + + If running Intel MPI and uDAPL rdma_cm, set the following: setenv I_MPI_DAPL_PROVIDER=ofa-v2-ib0 - uDAPL MCM Provider and MPXYD Daemon (CCL-proxy) - ================================================= - + ============================================================ + 5.0 MCM Provider, MPXYD Daemon (CCL-proxy) Build and Install + ============================================================ + MCM is a new uDAPL provider that is an extension to standard DAT 2.0 libraries. The purpose of this service is to proxy RDMA writes from the MIC to the HOST to improve large IO performance. The provider will support MIC to MIC, HOST to HOST, and MIC to HOST environments. The mcm client will NOT use MPXYD when running on the host. @@ -201,7 +207,7 @@ host side libraries and daemon service. The MIC libraries must be built and moved over to MIC adapter. This verion is currently included with MPSS and all libraries and services will be installed by default. - Current release package: dapl-2.1.5.tar.gz + Current release package: dapl-2.1.6.tar.gz * Sample host build from source package (ofed must be installed) @@ -211,7 +217,7 @@ * Sample host rpmbuild/update from release tarball, /root: - rpmbuild -ta dapl-2.1.5.tar.gz + rpmbuild -ta dapl-2.1.6.tar.gz rpm -U /root/rpmbuild/RPMS/x86_64/dapl* * Sample MIC build from source package for MPSS 3.x (MPSS must be installed) @@ -223,8 +229,7 @@ make install copy /opt/dapl/mic/* files out to all MIC cards - - + * Cluster deployment (1) Build once on the head or on one of the nodes (with MPSS) as described in the above steps. @@ -266,21 +271,6 @@ Check for dapl overlay micctrl --config - - * Use the MCM provider with Intel MPI 5.0 greater for best out of box experiences. - - (1) Recommended settings: - - export I_MPI_MIC=1 - export I_MPI_DEBUG=2 - export I_MPI_FALLBACK=0 - export I_MPI_MIC_DAPL_DIRECT_COPY_THRESHOLD=8192,262144 - - With these settings on MIC, messages less than 8192 bytes will be sent via pre-registered buffers; messages - between 8192 and 262144 bytes will be sent via the Rendezvous protocol throught the first provider; and - larger messages will be sent via the Rendezvous protocol through the second provider. Fine tune these - two sizes for the best performance. - * Setup for non-root CCL Proxy testing, MPXYD running as process with different service port from your /home directory: Using build instructions above, change prefix as follow and "make install": @@ -305,7 +295,7 @@ export DAPL_MCM_PORT_ID=1068 - * Notes + * Notes (1) Modify "/etc/mpxyd.conf" to change the settings for the proxy. Especially, try different values of "buffer_segment_size" for performance tuning. Use a smaller value for "buffer_pool_mb" @@ -318,10 +308,518 @@ host-originated writes (e.g. for debugging purpose). To do this, set the environment variable "DAPL_MCM_ALWAYS_PROXY=1". This variable applies to the provider, not the proxy. - ==================================================================================================== + (3) Use the MCM provider with Intel MPI 5.1 or greater for best out of box experiences with MIC. - Summary of Fixes/Changes: - ------------------------- + Recommended settings: + + export I_MPI_MIC=1 + export I_MPI_DEBUG=2 + export I_MPI_FALLBACK=0 + + (4) Server Platform Notes: + + For optimal CCL Proxy performance, installed on Intel® Xeon® Processor E5-26xx v2 and v3 platforms, + please update to the latest platform BIOS and set the following Processor, Power, and Memory settings. + + https://downloadcenter.intel.com/default.aspx + + [BIOS::Advanced::Processor Configuration] + Intel(R) QPI Frequency Select=Auto Max + Intel(R) Turbo Boost Technology=Enabled + Enhanced Intel SpeedStep(R) Tech=Enabled + Processor C3=Disabled + Processor C6=Enabled + Intel(R) Virtualization Technology=Disabled + Intel(R) VT for Directed I/O=Disabled + Direct Cache Access (DCA)=Enabled + Extended ATR=0x01 + + [BIOS::Advanced::Power & Performance] + CPU Power and Performance Policy=Performance + + [BIOS::Advanced::Memory Configuration::Memory RAS and Performance Configuration] + Select Memory RAS Configuration=Maximum Performance + NUMA Optimized=Enabled + + ==================================================================== + 6.0 Mellanox Fabric Collective Accelerator (FCA) build for Intel MPI + ==================================================================== + + 1) Download latest package: http://www.openfabrics.org/downloads/dapl/dapl-2.x.x.tar.gz + + 2) Build/Install with collectives configured for fca type: + + ./configure --enable-coll-type=fca --disable-mcm --prefix=/usr + LDFLAGS=-L/opt/mellanox/fca/lib + CPPFLAGS=-I/opt/mellanox/fca/include + make install + + If an uDAPL provider with collective support is installed as an additional package, + while another uDAPL provider also exists in a system, LD_LIBRARY_PATH environment + variable should be updated to include the path to the newly installed DAPL package. + + 3) Set following MPI variables: + + export FCA_MGR_HOME=/opt/mellanox/fca + export FCA_HOME=/opt/mellanox/fca + export I_MPI_DAPL_COLLECTIVES=all + export I_MPI_FABRICS=dapl + export I_MPI_FALLBACK_DEVICE=off + + ============================= + 7.0 Environment Variables + ============================= + + - IB UD options using UCM provider, large scale settings (Xeon) + + export DAPL_NETWORK_NODES= /* set to active nodes on network for CM */ + export DAPL_NETWORK_PPN= /* set to active processes per node for CM */ + + /* The following will be adjusted by provider based on NODES, PPN */ + export DAPL_UCM_REP_TIME=8000 /* REQUEST timer, waiting on REPLY, msecs, default = 800 */ + export DAPL_UCM_RTU_TIME=8000 /* REPLY timer, waiting for RTU in msecs, default=400 */ + export DAPL_UCM_RETRY=7 /* REQUEST & REPLY retries, default = 7 */ + export DAPL_UCM_QP_SIZE=4000 /* CM req/reply work queue size, default = 500 entries */ + export DAPL_UCM_CQ_SIZE=4000 /* CM req/reply completion queue size, default = 500 entries */ + export DAPL_UCM_TX_BURST=100 /* CM signal rate on send messages */ + export DAPL_UCM_ENTRY_BITS=11 /* default = 11-bit, 2KB entries, allocation blocks */; + export DAPL_UCM_ARRAY_BITS=18 /* default = 18 bit, 256KB total */ + + - IB RC options using SCM provider + + export DAPL_SCM_NETDEV=ib0 /* default is first non-loopback netdev */ + + - Other IB settings for all providers: + + export DAPL_MAX_INLINE=64 /* IB RC inline optimization, best small msg latency, def=64 */ + export DAPL_ACK_RETRY=7 /* IB RC Ack retry count, default 7 */ + export DAPL_ACK_TIMER=20 /* IB RC Ack retry timer, 5 bits, 4.096us*2^ack_timer. 16== 268ms, 20==4.2s */ + export DAPL_IB_MTU=2048 /* IB MTU size, default = 2048 */ + export DAPL_RNR_TIMER=12 /* 5 bits, 12 =.64ms, 28 =163ms, 31 =491ms */ + export DAPL_RNR_RETRY=7 /* 3 bits, 7 == infinite */ + export DAPL_IB_PKEY= 0 /* override IB partition key, default is pkey index 0 */ + export DAPL_IB_SL=0 /* override IB Sevice level, default = 0 */ + + - Other options: + export DAPL_WR_MAX=500 /* used to reduce max qp depth on all IB providers, default = dev attributes */ + + Debug logging and Counter settings ( --enable-counters) + + export DAPL_DBG_SYS_MEM=10 /* threshold for low sys memory warning, def = 10 percent */ + export DAPL_DBG_TYPE=0x0000003 /* set log, monitor, and error checking, default = warnings and errors */ + + DAPL_DBG_TYPE bit settings as follow: + + DAPL_DBG_TYPE_ERR = 0x0001, + DAPL_DBG_TYPE_WARN = 0x0002, + DAPL_DBG_TYPE_EVD = 0x0004, + DAPL_DBG_TYPE_CM = 0x0008, + DAPL_DBG_TYPE_EP = 0x0010, + DAPL_DBG_TYPE_UTIL = 0x0020, + DAPL_DBG_TYPE_CALLBACK = 0x0040, + DAPL_DBG_TYPE_DTO_COMP_ERR = 0x0080, + DAPL_DBG_TYPE_API = 0x0100, + DAPL_DBG_TYPE_RTN = 0x0200, + DAPL_DBG_TYPE_EXCEPTION = 0x0400, + DAPL_DBG_TYPE_SRQ = 0x0800, + DAPL_DBG_TYPE_CNTR = 0x1000, + DAPL_DBG_TYPE_CM_LIST = 0x2000, + DAPL_DBG_TYPE_THREAD = 0x4000, + DAPL_DBG_TYPE_CM_EST = 0x8000, + DAPL_DBG_TYPE_CM_WARN = 0x10000, + DAPL_DBG_TYPE_EXTENSION = 0x20000, + DAPL_DBG_TYPE_CM_STATS = 0x40000, + DAPL_DBG_TYPE_CM_ERRS = 0x80000, /* print any cm errors on device close */ + DAPL_DBG_TYPE_LINK_ERRS = 0x100000, /* print any link errors on device close */ + DAPL_DBG_TYPE_LINK_WARN = 0x200000, /* print any link warning on device close */ + DAPL_DBG_TYPE_DIAG_ERRS = 0x400000, /* print any diag_counter errors on dev close */ + DAPL_DBG_TYPE_SYS_WARN = 0x800000, /* print low mem warning during alloc, reg_mem */ + DAPL_DBG_TYPE_VER = 0x1000000, /* print dapl ver and build date during dev open */ + + ============================= + 9.0 SAMPLE uDAPL APPLICATION: + ============================= + + There are 2 sample programs, with manpages, provided with this package. + + (dapl/test/dtest/) + + NAME + dtest - simple uDAPL send/receive and RDMA test + + SYNOPSIS + dtest [-P provider] [-b buf size] [-B burst count][-v] [-c] [-p] [-d] [-s] + + dtest [-P provider] [-b buf size] [-B burst count][-v] [-c] [-p] [-d] [-h HOSTNAME] + + DESCRIPTION + dtest is a simple test used to exercise and verify the uDAPL interfaces. At least two instantia- + tions of the test must be run. One acts as the server and the other the client. The server side of + the test, once invoked listens for connection requests, until timing out or killed. Upon receipt + of a cd connection request, the connection is established, the server and client sides exchange + information necessary to perform RDMA writes and reads. + + OPTIONS + -P=PROVIDER + use PROVIDER to specify uDAPL interface using /etc/dat.conf (default OpenIB-cma) + + -b=BUFFER_SIZE + use buffer size BUFFER_SIZE for RDMA(default 64) + + -B=BURST_COUNT + use busrt count BURST_COUNT for interations (default 10) + + -v, verbose output(default off) + + -c, use consumer notification events (default off) + + -p, use polling (default wait for event) + + -d, delay in seconds before close (default off) + + -s, run as server (default - run as server) + + -h=HOSTNAME + use HOSTNAME to specify server hostname or IP address (default - none) + + EXAMPLES + dtest -P OpenIB-cma -v -s + Starts a server process with debug verbosity using provider OpenIB-cma. + + dtest -P OpenIB-cma -h server1-ib0 + + Starts a client process, using OpenIB-cma provider to connect to hostname server1-ib0. + + SEE ALSO + dapltest(1) + + AUTHORS + Arlin Davis + + + BUGS + + /dapl/test/dapltest/ + + NAME + dapltest - test for the Direct Access Programming Library (DAPL) + + DESCRIPTION + Dapltest is a set of tests developed to exercise, characterize, and verify the DAPL interfaces + during development and porting. At least two instantiations of the test must be run. One acts as + the server, fielding requests and spawning server-side test threads as needed. Other client invo- + cations connect to the server and issue test requests. The server side of the test, once invoked, + listens continuously for client connection requests, until quit or killed. Upon receipt of a con- + nection request, the connection is established, the server and client sides swap version numbers + to verify that they are able to communicate, and the client sends the test request to the server. + If the version numbers match, and the test request is well-formed, the server spawns the threads + needed to run the test before awaiting further connections. + + USAGE + dapltest [ -f script_file_name ] [ -T S|Q|T|P|L ] [ -D device_name ] [ -d ] [ -R HT|LL|EC|PM|BE ] + + With no arguments, dapltest runs as a server using default values, and loops accepting requests + from clients. + + The -f option allows all arguments to be placed in a file, to ease test automation. + + The following arguments are common to all tests: + + [ -T S|Q|T|P|L ] + Test function to be performed: + + S - server loop + + Q - quit, client requests that server wait for any outstanding tests to complete, then + clean up and exit + + T - transaction test, transfers data between client and server + + P - performance test, times DTO operations + + L - limit test, exhausts various resources, runs in client w/o server interaction + Default: S + + [ -D device_name ] + Specifies the interface adapter name as documented in the /etc/dat.conf static configura- + tion file. This name corresponds to the provider library to open. Default: none + + [ -d ] Enables extra debug verbosity, primarily tracing of the various DAPL operations as they + progress. Repeating this parameter increases debug spew. Errors encountered result in the + test spewing some explanatory text and stopping; this flag provides more detail about what + lead up to the error. Default: zero + + [ -R BE ] + Indicate the quality of service (QoS) desired. Choices are: + + HT - high throughput + + LL - low latency + + EC - economy (neither HT nor LL) + + PM - premium + + BE - best effort Default: BE + + Usage - Quit test client + + dapltest [Common_Args] [ -s server_name ] + + Quit testing (-T Q) connects to the server to ask it to clean up and + exit (after it waits for any outstanding test runs to complete). + In addition to being more polite than simply killing the server, + this test exercises the DAPL object teardown code paths. + There is only one argument other than those supported by all tests: + + -s server_name Specifies the name of the server interface. + No default. + + Usage - Transaction test client + + dapltest [Common_Args] [ -s server_name ] + [ -t threads ] [ -w endpoints ] [ -i iterations ] [ -Q ] + [ -V ] [ -P ] OPclient OPserver [ op3, + + Transaction testing (-T T) transfers a variable amount of data between + client and server. The data transfer can be described as a sequence of + individual operations; that entire sequence is transferred ’iterations’ + times by each thread over all of its endpoint(s). + + The following parameters determine the behavior of the transaction test: + + -s server_name Specifies the name or IP address of the server interface. + No default. + + [ -t threads ] Specify the number of threads to be used. + Default: 1 + + [ -w endpoints ] Specify the number of connected endpoints per thread. + Default: 1 + + [ -i iterations ] Specify the number of times the entire sequence + of data transfers will be made over each endpoint. + Default: 1000 + + [ -Q ] Funnel completion events into a CNO. + Default: use EVDs + + [ -V ] Validate the data being transferred. + Default: ignore the data + + [ -P ] Turn on DTO completion polling + Default: off + + OP1 OP2 [ OP3, ... ] + A single transaction (OPx) consists of: + + server|client Indicates who initiates the + data transfer. + + SR|RR|RW Indicates the type of transfer: + SR send/recv + RR RDMA read + RW RDMA write + Defaults: none + + [ seg_size [ num_segs ] ] + : + + Indicates the amount and format + of the data to be transferred. + Default: 4096 1 + (i.e., 1 4KB buffer) + + [ -f ] For SR transfers only, indicates + that a client’s send transfer + completion should be reaped when + the next recv completion is reaped. + Sends and receives must be paired + (one client, one server, and in that + order) for this option to be used. + Restrictions: + + Due to the flow control algorithm used by the transaction test, there + must be at least one SR OP for both the client and the server. + + Requesting data validation (-V) causes the test to automatically append + three OPs to those specified. These additional operations provide + synchronization points during each iteration, at which all user-specified + transaction buffers are checked. These three appended operations satisfy + the "one SR in each direction" requirement. + + The transaction OP list is printed out if -d is supplied. + + Usage - Performance test client + + dapltest [Common_Args] -s server_name [ -m p|b ] + [ -i iterations ] [ -p pipeline ] OP + + Performance testing (-T P) times the transfer of an operation. + The operation is posted ’iterations’ times. + + The following parameters determine the behavior of the transaction test: + + -s server_name Specifies the name or IP address of the server interface. + No default. + + -m b|p Used to choose either blocking (b) or polling (p) + Default: blocking (b) + [ -i iterations ] Specify the number of times the entire sequence + of data transfers will be made over each endpoint. + Default: 1000 + + [ -p pipeline ] Specify the pipline length, valid arguments are in + the range [0,MAX_SEND_DTOS]. If a value greater than + MAX_SEND_DTOS is requested the value will be + adjusted down to MAX_SEND_DTOS. + Default: MAX_SEND_DTOS + + OP Specifies the operation as follow: + + RR|RW Indicates the type of transfer: + RR RDMA read + RW RDMA write + Defaults: none + + [ seg_size [ num_segs ] ] + Indicates the amount and format + of the data to be transferred. + Default: 4096 1 + (i.e., 1 4KB buffer) + Usage - Limit test client + + Limit testing (-T L) neither requires nor connects to any server + instance. The client runs one or more tests which attempt to + exhaust various resources to determine DAPL limits and exercise + DAPL error paths. If no arguments are given, all tests are run. + + Limit testing creates the sequence of DAT objects needed to + move data back and forth, attempting to find the limits supported + for the DAPL object requested. For example, if the LMR creation + limit is being examined, the test will create a set of + {IA, PZ, CNO, EVD, EP} before trying to run dat_lmr_create() to + failure using that set of DAPL objects. The ’width’ parameter + can be used to control how many of these parallel DAPL object + sets are created before beating upon the requested constructor. + Use of -m limits the number of dat_*_create() calls that will + be attempted, which can be helpful if the DAPL in use supports + essentailly unlimited numbers of some objects. + The limit test arguments are: + + [ -m maximum ] Specify the maximum number of dapl_*_create() + attempts. + Default: run to object creation failure + + [ -w width ] Specify the number of DAPL object sets to + create while initializing. + Default: 1 + + [ limit_ia ] Attempt to exhaust dat_ia_open() + + [ limit_pz ] Attempt to exhaust dat_pz_create() + + [ limit_cno ] Attempt to exhaust dat_cno_create() + + [ limit_evd ] Attempt to exhaust dat_evd_create() + + [ limit_ep ] Attempt to exhaust dat_ep_create() + + [ limit_rsp ] Attempt to exhaust dat_rsp_create() + + [ limit_psp ] Attempt to exhaust dat_psp_create() + + [ limit_lmr ] Attempt to exhaust dat_lmr_create(4KB) + + [ limit_rpost ] Attempt to exhaust dat_ep_post_recv(4KB) + + [ limit_size_lmr ] Probe maximum size dat_lmr_create() + + Default: run all tests + EXAMPLES + dapltest -T S -d -D OpenIB-cma + + Starts a server process with debug verbosity. + + dapltest -T T -d -s host1-ib0 -D OpenIB-cma -i 100 client SR 4096 2 server SR 4096 2 + + Runs a transaction test, with both sides + sending one buffer with two 4KB segments, + one hundred times. + + dapltest -T P -d -s host1-ib0 -D OpenIB-cma -i 100 SR 4096 2 + + Runs a performance test, with the client + sending one buffer with two 4KB segments, + one hundred times. + + dapltest -T Q -s host1-ib0 -D OpenIB-cma + + Asks the server to clean up and exit. + + dapltest -T L -D OpenIB-cma -d -w 16 -m 1000 + + Runs all of the limit tests, setting up + 16 complete sets of DAPL objects, and + creating at most a thousand instances + when trying to exhaust resources. + + dapltest -T T -V -d -t 2 -w 4 -i 55555 -s linux3 -D OpenIB-cma client RW 4096 1 server RW 2048 4 + client SR 1024 4 server SR 4096 2 client SR 1024 3 -f server SR 2048 1 -f + + Runs a more complicated transaction test, + with two thread using four EPs each, + sending a more complicated buffer pattern + for a larger number of iterations, + validating the data received. + + ============================= + 9.0 Summary of Fixes/Changes: + ============================= + + Release 2.1.7 (OFED 3.18-1 GA) + dtest: add -a -i options, all data sizes, incremental size + dapl: Fix segfault while freeing qp + mpxyd: add P2P inline support for data size <= 96 bytes + dtest: change rdma_write_ping_pong so client is always last receiver + ucm: add DAPL_NETWORK_PROCESS_NUM option for total ranks + ucm: fca create group incorrectly using IB addr instead of socket address. + ucm: fca_comm_destroy called with NULL + dtest: add -W option for rdma write pinpong, similiar to ib_write_lat + docs: update release notes for collective build + mpxyd: reduce log level for rcv message flush + dapltest: dapltest with no argument not working in ppc64 arch + + Release 2.1.6 (OFED 3.18-1) + ucm: add cluster size environments to adjust CM timers + mpxyd: proxy_in data transfers can improperly start before RTU received + mcm: forward open/query for MFO devices in query only mode + mpxyd: byte swap incorrect on WRC wr_len + dtest: remove ERR message from flush QP function + dapltest: Quit command with "-n port" number will core dump + config: update dat.conf for MFO qib devices, 2 adapters/ports + mpxyd: add MFO support on proxy side + mcm: add MFO proxy commands, device, and CM support + mcm: add MFO support to openib_common code base + mcm: add full offload (MFO) mode to provider to support qib on MIC + dtest: pre-allocated buffer too small for RMR, DTO ops timeout + mpxyd: fix buffer initialization when no-inline support is active + mpxyd: reduce log level on qp_flush to CM level + mcm: intra-node proxy missing LID setup on rejects + mcm: add intra-node support via ibscif device and mcm provider + mcm: provide MIC address info with proxy device open + mcm: add device info to non-debug log + common: add DAPL_DTO_TYPE_EXTENSION_IMM for rdma_write_imm DTO type checking + mpxyd: fix up some of the PI logging + dtest: modify rdma_write_with_msg to support uni-direction streaming + mcm,mpxyd: fix dreq processing to defer QP flush when proxy WRs still pending + mpxyd: update byte_len and comp_cnt for PO to remote HST communications + mcm: bug fixes for non-inline devices + mcm: return CM_rej with CM_req_in errors + mpxyd,mcm: RDMA write with immed data not signaled on request side + mcm: add WC opcode and wc_flags in debug log message + mpxyd: set options bug fix for mcm_ib_inline + Update release notes with latest CM times Release 2.1.5 (OFED 3.18 RC3) update release notes, readme @@ -581,1382 +1079,3 @@ ibal: sync QP destruction and device close ucm: remove unnecessary debug warning in async callback - v1.2 Package: - - Release 1.2.19 fixes (OFED 1.5.2 GA): - - common, cma: disconnect and cleanup CR linkings after DTO error on EP - common: race conditions with DTO error, disconnect and dapl_reset_ep - common: add new dapl_os_sleep_usec() function - configure: need a false conditional for verbs attr.link_layer member check - config: add conditional check for new verbs port_attr.link_layer - cma, scm: new provider entries for Mellanox RDMA over Ethernet device for uDAPL v1.2 - cma: memory leak of verbs CQ and completion channels created during dat_ia_open - cma: memory leak of FD's (pipe) created during dat_evd_create - - ---- HISTORY ----------- - - OFED 1.5.1 RELEASE NOTES - uDAPL v1 (1.2.16-1) and v2 (2.0.27-1) - - ---------------- - - * New Features (v2 only) - UCM provider with IB UD based CM per process. - More scalable then rdma_cm (cma) or socket cm (scm). - ---------------- - - * Bug Fixes - - V2.0 Package - - Release 2.0.27 - windows: add scm makefile - windows does not require rdma_cma_abi.h, move the include from common code - windows patch to fix IB_INVALID_HANDLE name collision - scm: dat_ep_connect fails on 32bit servers - undefined symbol: dapls_print_cm_list - cleanup CM object lock before freeing CM object memory - destroy verbs completion channels created via ia_open or ep_create. - package: update Copyright file and include the 3 license files in distribution - common: when copying private_data out of rdma_cm events, use the - cma: fix referencing freed address - dapl: move close device after async thread is done - - Release 2.0.26 - openib_common: add check for both gid and global routing in RTR - openib_common: remote memory read privilege set multi times - ucm, scm: DAPL_GLOBAL_ROUTING enabled causes segv - - Release 2.0.25 - winof scm: initialize opt for NODELAY setsockopt - winof cma: windows definition for EADDRNOTAVAIL missing - scm: client side setsockopt NODELAY fails if data arrives before setting - cma: setup_listener Cannot assign requested address - common: seg fault in dapl_evd_wait with multi-thread application using CNO's. - ucm: inbound DREQ/DREP handshake should transition QP. - winof: Remove duplicate include of comp_channel.cpp from cm.c as it is - included in opensm_ucb/device.c. - - Release 2.0.24 - winof: Utilize WinOF version of inet_ntop() for Windows OSes which do not - support inet_ntop(). - ucm: windows build issue with new CQ completion channel - winof: add ucm provider to windows build - winof: add missing build files for ibal, scm - scm: connection peer resets under heavy load, incorrect event on error - ucm: increase default reply and rtu timeout values. - ucm: change some debug message levels and add check for valid UD REPLY during retries. - ucm: increase timers during subsequent retries - ucm, scm: address handles need destroyed when freeing Endpoints with UD QP's. - openib_common: ignore pd free errors, clear pd_handle and return. - ucm: using UD type QP's, ucm reports wrong reject event when user rejects AH resolution request. - ucm, scm, cma: Fix CNO support on DTO type EVD's - ucm: fix lock init bug in ucm_cm_find - ucm: fix build problem with latest windows ucm changes - ucm: The HCA should not be closed until all resources have been released. - ucm: Fix build warning when compiling on 32-bit systems. - ucm: Trying to deregister the same memory region twice leads to an - dat: reduce debug message level when parsing for location of dat.conf - ucm: update ucm provider for windows environment - ucm: add timer/retry CM logic to the ucm provider - - Release 2.0.23 - cma: cannot reuse the cm_id and qp for new connection, must reallocate a new one. - scm, cma: update DAPL cm protocol revision with latest address/port changes - ucm: modify IB address format to align better with sockaddr_in6 - Add definition for getpid similar to that used by the other dtest apps. - WinOF provides a common implementation of gettimeofday that should - The completion manager was updated to provide an abstraction that - dtestcm: remove IB verb definitions - dtest, dtestx: remove IB verb definitions - scm: tighten up socket options to insure similiar behavior on Windows and Linux. - cma: improve serialization of destroy and event processing - scm: improve serialization of destroy and state changes - common: no cleanup/release code for timer thread - scm, cma: dapli_thread doesn't always get teminated on library close. - ucm: tighten up locking with CM processing, state changes - ucm: For UD type QP's, return CR p_data with CONN_EST event on passive side. - ucm: cleanup extra cr/lf - ucm: fix issues with UD QP's. - winof: Convert windows version of dapl and dat libaries to use private heaps. - dtest, dtestx: modifications for UD QP testing with ucm provider. - scm, ucm: UD QP support was broken when porting to common openib code base. - cma: cleanup warning with unused local variable, ret, in disconnect - cma: remove debug message after rdma_disconnect failure - scm: socket errno check needs O/S dependent wrapper - dapltest: update script files for WinOF - cma: conditional check for new rdma_cm definition. - - Release 2.0.22 - dapltest: add mdep processor yield and use with dapltest - ucm: Add new provider using a DAPL based IB-UD cm mechanism for MPI implementations. - - Release 2.0.21 - scm: Fix disconnect. QP's need to move to ERROR state in - modify dtest.c to cleanup CNO wait code and consolidate into - CNO events, once triggered will not be returned during the cno wait. - CNO support broken in both CMA and SCM providers. - common osd: include winsock2.h for IPv6 definitions. - common osd: include w2tcpip.h for sockaddr_in6 definitions. - DAPL introduced the concept of directly waiting on the CQ for - dapltest: Implement a malloc() threshold for the completion reaping. - scm: handle connected state when freeing CM objects - scm, dtest: changes for winof gettimeofday and FD_SETSIZE settings. - scm: set TCP_NODELAY sockopt on the server side for sends. - remove obsolete files in dapl/udapl source tree - dtestcm: add UD type QP option to test - scm: destroy QP called before disconnect - cma: add support for rdma_cm TIME_WAIT event. - scm: remove old udapl_scm code replaced by openib_scm. - winof: fix issues after consolidating cma, scm code base. - cma: lock held when exiting as a result of a rdma_create_event_channel failure. - windows: all dlist functions have been moved to the header file. - dtestcm windows: add build infrastructure for new dtestcm test suite - openib_common: reorganize code base to share common mem, cq, qp, dto functions - scm: fixes and optimizations for connection scaling - scm: double the default fd_set_size - scm: EP reference in CR should be cleared during ep_destroy - dtestx: fix conn establishment event checking - dtestcm: new test to measure dapl connection rates. - - Release 2.0.20 - common,scm: add debug capabilities to print in-process CM lists - scm: disconnect EP before cleaning up orphaned CR's during dat_ep_free - dapltest: windows scripts updated - scm: private data is not handled properly via CR rejects. - scm: cleanup orphaned UD CR's when destroying the EP - scm: provider specific query for default UD MTU is wrong. - scm: update CM code to shutdown before closing socket - dapltest: windows script dt-cli.bat updated - dapl/windows cma provider: add support for network devices based on index - openib: remove 1st gen provider, replaced with openib_cma and openib_scm - dapltest: update windows script files - dapltest: windows batch files in sripts directory - windows_osd/linux_osd: new dapl_os_gettid macro to return thread id - windows: missing build files for common and udapl sub-directories - windows: add build files for openib_scm, remove /Wp64 build option. - scm: multi-hca CM processing broken. Need cr thread wakeup mechanism per HCA. - dtest: add connection timers on client side - linux_osd: use pthread_self instead of getpid for debug messages - windows ibal-scm: dapl/dirs file needs updated to remove ibal-scm - - v1.2 Package: - - Release 1.2.16 - package: update Copyright file and include the 3 license files in distribution - cma: max sge incorrectly decremented during ibv_device_query - - Release 1.2.15 - dtest, dapltest: conflict with dapl-2 utils package, change to dapl1, dapltest1 - scm: fix compiler warning, unused variable - - ---------------- - - * BKM for running new DAPL library on your cluster without any impact on existing OFED installation: - - Note: example for user /home/user1, (assumes /home/user1 is exported) and MLX4 adapter, port 1 - - Download latest 2.x package: http://www.openfabrics.org/downloads/dapl/dapl-2.0.25.tar.gz - - untar in /home/user1 - cd /home/user1/dapl-2.0.25 - ./configure && make (build on node with OFED 1.3 or higher installed, dependency on verb/rdma_cm libraries) - - create /home/user1/dat.conf with following 3 lines. (entries with path to new libraries): - - ofa-v2-ib0 u2.0 nonthreadsafe default /home/user1/dapl-2.0.19/dapl/udapl/.libs/libdaplcma.so.1 dapl.2.0 "ib0 0" "" - ofa-v2-mlx4_0-1 u2.0 nonthreadsafe default /home/user1/dapl-2.0.19/dapl/udapl/.libs/libdaploscm.so.2 dapl.2.0 "mlx4_0 1" "" - ofa-v2-mlx4_0-1u u2.0 nonthreadsafe default /home/user1/dapl-2.0.19/dapl/udapl/.libs/libdaploucm.so.2 dapl.2.0 "mlx4_0 1" "" - - Run uDAPL application or an MPI that uses uDAPL, with (assuming MLX4 connectx adapters) following: - - setenv DAT_OVERRIDE=/home/user1/dat.conf - - If running Intel MPI and uDAPL socket cm, set the following: - - setenv I_MPI_DEVICE=rdssm:ofa-v2-mlx4_0-1 - - or if running Intel MPI and uDAPL IB UD cm, set the following: - - setenv I_MPI_DEVICE=rdssm:ofa-v2-mlx4_0-1u - - or if running Intel MPI and uDAPL rdma_cm, set the following: - - setenv I_MPI_DEVICE=rdssm:ofa-v2-ib0 - -------------------------- - - OFED 1.4.1 RELEASE NOTES - - NEW SINCE OFED 1.4 - new versions of uDAPL v1 (1.2.14-1) and v2 (2.0.19-1) - - * New Features - optional counters, must be configured/built with -DDAPL_COUNTERS - - * Bug Fixes - - v2 - scm, cma: dat max_lmr_block_size is 32 bit, verbs max_mr_size is 64 bit - v2 - scm, cma: use direct SGE mappings from dat_lmr_triplet to ibv_sge - v2 - dtest: add flush EVD call after data transfer errors - v2 - scm: increase default MTU size from 1024 to 2048 - v2 - dapltest: reset server listen ports to avoid collisions during long runs - v2 - dapltest: avoid duplicating ports, increment based on ep/thread count - v2 - dapltest: fix assumptions that multiple EP's will connect in order - v2 - common: sync missing with when removing items off of EVD pending queue - v2 - scm: reduce open time with thread start up - v2 - scm: getsockopt optlen needs initialized to size of optval - v2 - scm: cr_thread cleanup - v2 - OFED and WinOF code sync - v2 - scm: remove unnecessary query gid/lid from connection phase code. - v2 - scm: add optional 64-bit counters, build with -DDAPL_COUNTERS. - v1,v2 - spec files missing Requires(post) statements for sed/coreutils - v1,v2 - dtest/dapltest: use $(top_builddir) for .la files during test builds - v1,v2 - scm: remove unecessary thread when using direct objects - v1,v2 - Fix SuSE 11 build issues, asm/atomic.h no longer exists - - * Build Notes: - - # NON_DEBUG build/install example for x86_64, OFED targets - ./configure --prefix /usr --sysconf=/etc --libdir /usr/lib64 LDFLAGS=-L/usr/lib64 CPPFLAGS="-I/usr/include" - make install - - # DEBUG build/install example for x86_64, using OFED targets - ./configure --enable-debug --prefix /usr --sysconf=/etc --libdir /usr/lib64 LDFLAGS=-L/usr/lib64 CPPFLAGS="-I/usr/include" - make install - - # COUNTERS build/install example for x86_64, using OFED targets - ./configure --prefix /usr --sysconf=/etc --libdir /usr/lib64 LDFLAGS=-L/usr/lib64 CPPFLAGS="-I/usr/include -DDAPL_COUNTERS" - make install - - * BKM for running new DAPL library on your cluster without any impact on existing OFED installation: - - Note: example for user /home/user1, (assumes /home/user1 is exported) and MLX4 adapter, port 1 - - Download latest 2.x package: http://www.openfabrics.org/downloads/dapl/dapl-2.0.19.tar.gz - - untar in /home/user1 - cd /home/user1/dapl-2.0.19 - ./configure && make (build on node with OFED 1.3 or higher installed, dependency on verb/rdma_cm libraries) - - create /home/user1/dat.conf with following 2 lines. (entries with path to new libraries): - - ofa-v2-ib0 u2.0 nonthreadsafe default /home/user1/dapl-2.0.19/dapl/udapl/.libs/libdaplcma.so.1 dapl.2.0 "ib0 0" "" - ofa-v2-mlx4_0-1 u2.0 nonthreadsafe default /home/user1/dapl-2.0.19/dapl/udapl/.libs/libdaploscm.so.2 dapl.2.0 "mlx4_0 1" "" - - Run uDAPL application or an MPI that uses uDAPL, with (assuming MLX4 connectx adapters) following: - - setenv DAT_OVERRIDE=/home/user1/dat.conf - - If running Intel MPI and uDAPL socket cm, set the following: - - setenv I_MPI_DEVICE=rdssm:ofa-v2-mlx4_0-1 - - if running Intel MPI and uDAPL rdma_cm, set the following: - - setenv I_MPI_DEVICE=rdssm:ofa-v2-ib0 - -------------------------- - - OFED 1.4 RELEASE NOTES - - NEW SINCE OFED 1.3.1 - new versions of uDAPL v1 (1.2.12-1) and v2 (2.0.15-1) - - * New Features - - 1. The new socket CM provider, introduced in 1.2.8 and 2.0.11 packages, - assumes homogeneous cluster and will setup the QP's based on local HCA port - attributes and exchanges QP information via socket's using the hostname of - each node. IPoIB and rdma_cm are NOT required for this provider. QP attributes - can be adjusted via the following environment parameters: - - DAPL_ACK_TIMER (default=16 5 bits, 4.096us*2^ack_timer. 16 == 268ms) - DAPL_ACK_RETRY (default=7 3 bits, 7 * 268ms = 1.8 seconds) - DAPL_RNR_TIMER (default=12 5 bits, 12 == 64ms, 28 == 163ms, 31 == 491ms) - DAPL_RNR_RETRY (default=7 3 bits, 7 == infinite) - DAPL_IB_MTU (default=1024 limited to active MTU max) - - The new socket cm entries in /etc/dat.conf provide a link to the actual HCA - device and port. Example v1 and v2 entries for a Mellanox connectx device, port 1: - - OpenIB-mlx4_0-1 u1.2 nonthreadsafe default libdaplscm.so.1 dapl.1.2 "mlx4_0 1" "" - ofa-v2-mlx4_0-1 u2.0 nonthreadsafe default libdaploscm.so.2 dapl.2.0 "mlx4_0 1" "" - - This new socket cm provider, was successfully tested on the TATA CRL cluster - (#8 on Top500) with Intel MPI, achieving a HPLinpack score of 132.8TFlops on - 1798 nodes, 14384 cores at ~76.9% of peak. DAPL_ACK_TIMER was increased to 21 - for this scale. - - 2. New v2 definitions for IB unreliable datagram extension (only supported in - scm provider, libdaploscm.so.2) - - Extended EP dat_service_type, with DAT_IB_SERVICE_TYPE_UD - Add IB extension call dat_ib_post_send_ud(). - Add address handle definition for UD calls. - Add IB event definitions to provide remote AH via connect and connect requests - See dtestx (-d) source for example usage model - - * Bug Fixes - - v1,v2 - dapltest: trans test moves to cleanup stage before rdma_read processing is complete - v1,v2 - Fix static registration (dat.conf) to include sysconfdir override - v1,v2 - dat.conf: add default iwarp entry for eth2 - v1,v2 - dapl: adjust max_rdma_read_iov to 1 for iWARP devices - v1,v2 - dtest: reduce default IOV's for ep_create to support iWARP - v1,v2 - dtest: fix 32-bit build issues - v1,v2 - build: $(DESTDIR) prepend needed on install hooks for dat.conf - v2 - scm: UD shares EP;s which requires serialization - v2 - dapl: fixes for IB UD extensions in common code and socket cm provider. - v2 - dapl: add provider specific attribute query option for IB UD MTU size - v2 - dapl build: add correct CFLAGS, set non-debug build by default for v2 - v2 - dtestx: fix stack corruption problem with hostname strcpy - v2 - dapl extension: dapli_post_ext should always allocate cookie for requests. - v2 - dapltest: manpage - rdma write example incorrect - v1,v2 - dat, dapl, dtest, dapltest, providers: fix compiler warnings in dat common code - v1,v2 - dapl cma: debug message during query needs definition for inet_ntoa - v1,v2 - dapl scm: fix corner case that delivers duplicate disconnect events - v1,v2 - dat: include stddef.h for NULL definition in dat_platform_specific.h - v1,v2 - dapl: add debug messages during async and overflow events - v1,v2 - dapltest: add check for duplicate disconnect events in transaction test - v1,v2 - dapl scm: use correct device attribute for max_rdma_read_out, max_qp_init_rd_atom - v1,v2 - dapl scm: change IB RC qp inline and timer defaults. - v1,v2 - dapl scm: add mtu adjustments via environment, default = 1024. - v1,v2 - dapl scm: change connect and accept to non-blocking to avoid blocking user thread. - v1,v2 - dapl scm: update max_rdma_read_iov, max_rdma_write_iov EP attributes during query - v1,v2 - dat: allow TYPE_ERR messages to be turned off with DAT_DBG_TYPE - v1,v2 - dapl: remove needless terminating 0 in dto_op_str functions. - v1,v2 - dat: remove reference to doc/dat.conf in makefile.am - v1,v2 - dapl scm: fix ibv_destroy_cq busy error condition during dat_evd_free. - v1,v2 - dapl scm: add stdout logging for uname and gethostbyname errors during open. - v1,v2 - dapl scm: support global routing and set mtu based on active_mtu - v1,v2 - dapl: add opcode to string function to report opcode during failures. - v1,v2 - dapl: remove unused iov buffer allocation on the endpoint - v1,v2 - dapl: endpoint pending request count is wrong - -------------------------- - - OFED 1.3.1 RELEASE NOTES - - NEW SINCE OFED 1.3 - new versions of uDAPL v1 (1.2.7-1) and v2 (2.0.9-1) - - * New Features - None - - * Bug Fixes - v2 - add private data exchange with reject - v1,v2 - better error reporting in non-debug builds - v1,v2 - update only OFA entries in dat.conf, cooperate with non-ofa providers - v1,v2 - support for zero byte operations, iov==NULL - v1,v2 - multi-transport support for inline data and private data differences - v1,v2 - fix memory leaks and other reported bugs since OFED 1.3 - v1,v2 - dtest,dtestx,dapltest build issues on RHEL5.1 - v1,v2 - long delay during dat_ia_open when DNS not configured - v1,v2 - use rdma_read_in/out from ep_attr per consumer instead of HCA max - -------------------------- - - OFED 1.3 RELEASE NOTES - - NEW SINCE OFED 1.2 - - * New Features - - 1. Add v2.0 library support for new 2.0 API Specification - 2. Separate v1.2 library release to co-exist with v2.0 libraries. - 3. New dat.conf with both 1.2 and 2.0 support - 4. New v2.0 dtestx utilities to test IB extensions - - * Bug Fixes - - v1.2 and v2.0 - - uDAT: static/dynamic registry parsing fixes - - uDAPL: provider fixes for dat_psp_create_any - - dtest/dapltest: change default provider names to sync with dat.conf - - openib_cma: issues with destroy_cm_id and init/resp exchange - - dapltest: use gettimeofday instead of get_cycles for better portability - - dapltest: endian issue with mem_handle, mem_address - - dapltest fix to include inet_ntoa definitions - - fix build problems on 32-bit and 64-bit PowerPC - - cleanup packaging - - v2.0 - - set default config options to match spec file, --enable-debug --enable-ext-type=ib - - use unique devel target names, libdat2.so, /usr/include/dat2 - - dtestx fix memory leak, freeaddrinfo after getaddrinfo - - Fix for IB extended DTO cookie deallocation on inbound rdma_Write_immed - - WinOF: Update OFED code base to include WinOF changes, work from same code base - - WinOF: add DAT_API definition, __stdcall for windows, nothing for linux - - dtest: add dat_evd_query to check correct size - - openib_cma: add macro to convert SID to PORT - - dtest: endian support for exchanging RMR info - - openib_cma: lower default settings, inline and RDMA init/resp - - openib_cma: missing ia_query for max_iov_segments_per_rdma_write - - v1.2 - - openib_cma: turn down dbg noise level on rejects - - dtest: typo in memset - - - BUILD: v1 and v2 uDAPL source install/build instructions (redhat example): - - # cd to distribution SRPMS directory - cd /tmp/OFED-1.3/SRPMS - rpm -i dapl-1.2*.rpm - rpm -i dapl-2.0*.rpm - cd /usr/src/redhat/SOURCES - tar zxf dapl-1.2*.tgz - tar zxf dapl-2.0*.tgz - - # NON_DEBUG build example for x86_64, using OFED targets - - ./configure --prefix /usr --sysconf=/etc --libdir /usr/lib64 - LDFLAGS=-L/usr/lib64 CPPFLAGS="-I/usr/include" - - # build and install - - make - make install - - # DEBUG build example for x86_64, using OFED targets - - ./configure --enable-debug --prefix /usr --sysconf=/etc --libdir /usr/lib64 - LDFLAGS=-L/usr/lib64 CPPFLAGS="-I/usr/include" - - # build and install - - make - make install - - # DEBUG messages: set environment variable DAPL_DBG_TYPE, default - mapping is 0x0003 - - DAPL_DBG_TYPE_ERR = 0x0001, - DAPL_DBG_TYPE_WARN = 0x0002, - DAPL_DBG_TYPE_EVD = 0x0004, - DAPL_DBG_TYPE_CM = 0x0008, - DAPL_DBG_TYPE_EP = 0x0010, - DAPL_DBG_TYPE_UTIL = 0x0020, - DAPL_DBG_TYPE_CALLBACK = 0x0040, - DAPL_DBG_TYPE_DTO_COMP_ERR= 0x0080, - DAPL_DBG_TYPE_API = 0x0100, - DAPL_DBG_TYPE_RTN = 0x0200, - DAPL_DBG_TYPE_EXCEPTION = 0x0400, - DAPL_DBG_TYPE_SRQ = 0x0800, - DAPL_DBG_TYPE_CNTR = 0x1000 - -------------------------- - - OFED 1.2 RELEASE NOTES - - NEW SINCE Gamma 3.2 and OFED 1.1 - - * New Features - - 1. Added dtest and dapltest to the openfabrics build and utils rpm. - Includes manpages. - 2. Added following enviroment variables to configure connection management - timers (default settings) for larger clusters: - - DAPL_CM_ARP_TIMEOUT_MS 4000 - DAPL_CM_ARP_RETRY_COUNT 15 - DAPL_CM_ROUTE_TIMEOUT_MS 4000 - DAPL_CM_ROUTE_RETRY_COUNT 15 - - * Bug Fixes - - + Added support for new ib verbs client register event. No extra - processing required at the uDAPL level. - + Fix some issues supporting create qp without recv cq handle or - recv qp resources. IB verbs assume a recv_cq handle and uDAPL - dapl_ep_create assumes there is always recv_sge resources specified. - + Fix some timeout and long disconnect delay issues discovered during - scale-out testing. Added support to retry rdma_cm address and route - resolution with configuration options. Provide a disconnect call - when receiving the disconnect request to guarantee a disconnect reply - and event on the remote side. The rdma_disconnect was not being called - from dat_ep_disconnect() as a result of the state changing - to DISCONNECTED in the event callback. - + Changes to support exchanging and validation of the device - responder_resources and the initiator_depth during conn establishment - + Fix some build issues with dapltest on 32 bit arch, and on ia64 SUSE arch - + Add support for multiple IB devices to dat.conf to support IPoIB HA failover - + Fix atomic operation build problem with ia64 and RHEL5. - + Add support to return local and remote port information with dat_ep_query - + Cleanup RPM specfile for the dapl package, move to 1.2-1 release. - - NEW SINCE Gamma 3.1 and OFED 1.0 - - * BUG FIXES - - + Update obsolete CLK_TCK to CLOCKS_PER_SEC - + Fill out some unitialized fields in the ia_attr structure returned by - dat_ia_query(). - + Update dtest to support multiple segments on rdma write and change - makefile to use OpenIB-cma by default. - + Add support for dat_evd_set_unwaitable on a DTO evd in openib_cma - provider - + Added errno reporting (message and return codes) during open to help - diagnose create thread issues. - + Fix some suspicious inline assembly EIEIO_ON_SMP and ISYNC_ON_SMP - + Fix IA64 build problems - + Lower the reject debug message level so we don't see warnings when - consumers reject. - + Added support for active side TIMED_OUT event from a provider. - + Fix bug in dapls_ib_get_dat_event() call after adding new unreachable - event. - + Update for new rdma_create_id() function signature. - + Set max rdma read per EP attributes - + Report the proper error and timeout events. - + Socket CM fix to guard against using a loopback address as the local - device address. - + Use the uCM set_option feature to adjust connect request timeout - retry values. - + Fix to disallow any event after a disconnect event. - - * OFED 1.1 uDAPL source build instructions: - - cd /usr/local/ofed/src/openib-1.1/src/userspace/dapl - - # NON_DEBUG build configuration - - ./configure --disable-libcheck --prefix /usr/local/ofed - --libdir /usr/local/ofed/lib64 LDFLAGS=-L/usr/local/ofed/lib64 - CPPFLAGS="-I../libibverbs/include -I../librdmacm/include" - - # build and install - - make - make install - - # DEBUG build configuration - - ./configure --disable-libcheck --enable-debug --prefix /usr/local/ofed - --libdir /usr/local/ofed/lib64 LDFLAGS=-L/usr/local/ofed/lib64 - CPPFLAGS="-I../libibverbs/include -I../librdmacm/include" - - # build and install - - make - make install - - # DEBUG messages: set environment variable DAPL_DBG_TYPE, default - mapping is 0x0003 - - DAPL_DBG_TYPE_ERR = 0x0001, - DAPL_DBG_TYPE_WARN = 0x0002, - DAPL_DBG_TYPE_EVD = 0x0004, - DAPL_DBG_TYPE_CM = 0x0008, - DAPL_DBG_TYPE_EP = 0x0010, - DAPL_DBG_TYPE_UTIL = 0x0020, - DAPL_DBG_TYPE_CALLBACK = 0x0040, - DAPL_DBG_TYPE_DTO_COMP_ERR= 0x0080, - DAPL_DBG_TYPE_API = 0x0100, - DAPL_DBG_TYPE_RTN = 0x0200, - DAPL_DBG_TYPE_EXCEPTION = 0x0400, - DAPL_DBG_TYPE_SRQ = 0x0800, - DAPL_DBG_TYPE_CNTR = 0x1000 - - - Note: The udapl provider library libdaplscm.so is untested and - unsupported, thus customers should not use it. - It will be removed in the next OFED release. - - DAPL GAMMA 3.1 RELEASE NOTES - - This release of the DAPL reference implementation - is timed to coincide with the first release of the - Open Fabrics (www.openfabrics.org) software stack. - This release adds support for this new stack, which - is now the native Linux RDMA stack. - - This release also adds a new licensing option. In - addition to the Common Public License and BSD License, - the code can now be licensed under the terms of the GNU - General Public License (GPL) version 2. - - NEW SINCE Gamma 3.0 - - - GPL v2 added as a licensing option - - OpenFabrics (aka OpenIB) gen2 verbs support - - dapltest support for Solaris 10 - - * BUG FIXES - - + Fixed a disconnect event processing race - + Fix to destroy all QPs on IA close - + Removed compiler warnings - + Removed unused variables - + And many more... - - DAPL GAMMA 3.0 RELEASE NOTES - - This is the first release based on version 1.2 of the spec. There - are some components, such a shared receive queues (SRQs), which - are not implemented yet. - - Once again there were numerous bug fixes submitted by the - DAPL community. - - NEW SINCE Beta 2.06 - - - DAT 1.2 headers - - DAT_IA_HANDLEs implemented as small integers - - Changed default device name to be "ia0a" - - Initial support for Linux 2.6.X kernels - - Updates to the OpenIB gen 1 provider - - * BUG FIXES - - + Updated Makefile for differentiation between OS releases. - + Updated atomic routines to use appropriate API - + Removed unnecessary assert from atomic_dec. - + Fixed bugs when freeing a PSP. - + Fixed error codes returned by the DAT static registry. - + Kernel updates for dat_strerror. - + Cleaned up the transport layer/adapter interface to use DAPL - types rather than transport types. - + Fixed ring buffer reallocation. - + Removed old test/udapl/dapltest directory. - + Fixed DAT_IA_HANDLE translation (from pointer to int and - vice versa) on 64-bit platforms. - - DAP BETA 2.06 RELEASE NOTES - - We are not planning any further releases of the Beta series, - which are based on the 1.1 version of the spec. There may be - further releases for bug fixes, but we anticipate the DAPL - community to move to the new 1.2 version of the spec and the - changes mandated in the reference implementation. - - The biggest item in this release is the first inclusion of the - OpenIB Gen 1 provider, an item generating a lot of interest in - the IB community. This implementation has graciously been - provided by the Mellanox team. The kdapl implementation is in - progress, and we imagine work will soon begin on Gen 2. - - There are also a handful of bug fixes available, as well as a long - awaited update to the endpoint design document. - - NEW SINCE Beta 2.05 - - - OpenIB gen 1 provider support has been added - - Added dapls_evd_post_generic_event(), routine to post generic - event types as requested by some providers. Also cleaned up - error reporting. - - Updated the endpoint design document in the doc/ directory. - - * BUG FIXES - - + Cleaned up memory leak on close by freeing the HCA structure; - + Removed bogus #defs for rdtsc calls on IA64. - + Changed daptest thread types to use internal types for - portability & correctness - + Various 64 bit enhancements & updates - + Fixes to conformance test that were defining CONN_QUAL twice - and using it in different ways - + Cleaned up private data handling in ep_connect & provider - support: we now avoid extra copy in connect code; reduced - stack requirements by using private_data structure in the EP; - removed provider variable. - + Fixed problem in the dat conformance test where cno_wait would - attempt to dereference a timer value and SEGV. - + Removed old vestiges of depricated POLLING_COMPLETIONS - conditionals. - - DAPL BETA 2.05 RELEASE NOTES - - This was to be a very minor release, the primary change was - going to be the new wording of the DAT license as contained in - the header for all source files. But the interest and - development occurring in DAPL provided some extra bug fixes, and - some new functionality that has been requested for a while. - - First, you may notice that every single source file was - changed. If you read the release notes from DAPL BETA 2.04, you - were warned this would happen. There was a legal issue with the - wording in the header, the end result was that every source file - was required to change the word 'either of' to 'both'. We've - been putting this change off as long as possible, but we wanted - to do it in a clean drop before we start working on DAT 1.2 - changes in the reference implementation, just to keep things - reasonably sane. - - kdapltest has enabled three of the subtests supported by - dapltest. The Performance test in particular has been very - useful to dapltest in getting minima and maxima. The Limit test - pushes the limits by allocating the maximum number of specific - resources. And the FFT tests are also available. - - Most vendors have supported shared memory regions for a while, - several of which have asked the reference implementation team to - provide a common implementation. Shared memory registration has - been tested on ibapi, and compiled into vapi. Both InfiniBand - providers have the restriction that a memory region must be - created before it can be shared; not all RDMA APIs are this way, - several allow you to declare a memory region shared when it is - registered. Hence, details of the implementation are hidden in - the provider layer, rather than forcing other APIs to do - something strange. - - This release also contains some changes that will allow dapl to - work on Opteron processors, as well as some preliminary support - for Power PC architecture. These features are not well tested - and may be incomplete at this time. - - Finally, we have been asked several times over the course of the - project for a canonical interface between the common and - provider layers. This release includes a dummy provider to meet - that need. Anyone should be able to download the release and do - a: - make VERBS=DUMMY - - And have a cleanly compiled dapl library. This will be useful - both to those porting new transport providers, as well as those - going to new machines. - - The DUMMY provider has been compiled on both Linux and Windows - machines. - - - NEW SINCE Beta 2.4 - - kdapltest enhancements: - * Limit subtests now work - * Performance subtests now work. - * FFT tests now work. - - - The VAPI headers have been refreshed by Mellanox - - - Initial Opteron and PPC support. - - - Atomic data types now have consistent treatment, allowing us to - use native data types other than integers. The Linux kdapl - uses atomic_t, allowing dapl to use the kernel macros and - eliminate the assembly code in dapl_osd.h - - - The license language was updated per the direction of the - DAT Collaborative. This two word change affected the header - of every file in the tree. - - - SHARED memory regions are now supported. - - - Initial support for the TOPSPIN provider. - - - Added a dummy provider, essentially the NULL provider. It's - purpose is to aid in porting and to clarify exactly what is - expected in a provider implementation. - - - Removed memory allocation from the DTO path for VAPI - - - cq_resize will now allow the CQ to be resized smaller. Not all - providers support this, but it's a provider problem, not a - limitation of the common code. - - * BUG FIXES - - + Removed spurious lock in dapl_evd_connection_callb.c that - would have caused a deadlock. - + The Async EVD was getting torn down too early, potentially - causing lost errors. Has been moved later in the teardown - process. - + kDAPL replaced mem_map_reserve() with newer SetPageReserved() - for better Linux integration. - + kdapltest no longer allocate large print buffers on the stack, - is more careful to ensure buffers don't overflow. - + Put dapl_os_dbg_print() under DAPL_DBG conditional, it is - supposed to go away in a production build. - + dapltest protocol version has been bumped to reflect the - change in the Service ID. - + Corrected several instances of routines that did not adhere - to the DAT 1.1 error code scheme. - + Cleaned up vapi ib_reject_connection to pass DAT types rather - than provider specific types. Also cleaned up naming interface - declarations and their use in vapi_cm.c; fixed incorrect - #ifdef for naming. - + Initialize missing uDAPL provider attr, pz_support. - + Changes for better layering: first, moved - dapl_lmr_convert_privileges to the provider layer as memory - permissions are clearly transport specific and are not always - defined in an integer bitfield; removed common routines for - lmr and rmr. Second, move init and release setup/teardown - routines into adapter_util.h, which defined the provider - interface. - + Cleaned up the HCA name cruft that allowed different types - of names such as strings or ints to be dealt with in common - code; but all names are presented by the dat_registry as - strings, so pushed conversions down to the provider - level. Greatly simplifies names. - + Changed deprecated true/false to DAT_TRUE/DAT_FALSE. - + Removed old IB_HCA_NAME type in favor of char *. - + Fixed race condition in kdapltest's use of dat_evd_dequeue. - + Changed cast for SERVER_PORT_NUMBER to DAT_CONN_QUAL as it - should be. - + Small code reorg to put the CNO into the EVD when it is - allocated, which simplifies things. - + Removed gratuitous ib_hca_port_t and ib_send_op_type_t types, - replaced with standard int. - + Pass a pointer to cqe debug routine, not a structure. Some - clean up of data types. - + kdapl threads now invoke reparent_to_init() on exit to allow - threads to get cleaned up. - - - - DAPL BETA 2.04 RELEASE NOTES - - The big changes for this release involve a more strict adherence - to the original dapl architecture. Originally, only InfiniBand - providers were available, so allowing various data types and - event codes to show through into common code wasn't a big deal. - - But today, there are an increasing number of providers available - on a number of transports. Requiring an IP iWarp provider to - match up to InfiniBand events is silly, for example. - - Restructuring the code allows more flexibility in providing an - implementation. - - There are also a large number of bug fixes available in this - release, particularly in kdapl related code. - - Be warned that the next release will change every file in the - tree as we move to the newly approved DAT license. This is a - small change, but all files are affected. - - Future releases will also support to the soon to be ratified DAT - 1.2 specification. - - This release has benefited from many bug reports and fixes from - a number of individuals and companies. On behalf of the DAPL - community, thank you! - - - NEW SINCE Beta 2.3 - - - Made several changes to be more rigorous on the layering - design of dapl. The intent is to make it easier for non - InfiniBand transports to use dapl. These changes include: - - * Revamped the ib_hca_open/close code to use an hca_ptr - rather than an ib_handle, giving the transport layer more - flexibility in assigning transport handles and resources. - - * Removed the CQD calls, they are specific to the IBM API; - folded this functionality into the provider open/close calls. - - * Moved VAPI, IBAPI transport specific items into a transport - structure placed inside of the HCA structure. Also updated - routines using these fields to use the new location. Cleaned - up provider knobs that have been exposed for too long. - - * Changed a number of provider routines to use DAPL structure - pointers rather than exposing provider handles & values. Moved - provider specific items out of common code, including provider - data types (e.g. ib_uint32_t). - - * Pushed provider completion codes and type back into the - provider layer. We no longer use EVD or CM completion types at - the common layer, instead we obtain the appropriate DAT type - from the provider and process only DAT types. - - * Change private_data handling such that we can now accommodate - variable length private data. - - - Remove DAT 1.0 cruft from the DAT header files. - - - Better spec compliance in headers and various routines. - - - Major updates to the VAPI implementation from - Mellanox. Includes initial kdapl implementation - - - Move kdapl platform specific support for hash routines into - OSD file. - - - Cleanups to make the code more readable, including comments - and certain variable and structure names. - - - Fixed CM_BUSTED code so that it works again: very useful for - new dapl ports where infrastructure is lacking. Also made - some fixes for IBHOSTS_NAMING conditional code. - - - Added DAPL_MERGE_CM_DTO as a compile time switch to support - EVD stream merging of CM and DTO events. Default is off. - - - 'Quit' test ported to kdapltest - - - uDAPL now builds on Linux 2.6 platform (SuSE 9.1). - - - kDAPL now builds for a larger range of Linux kernels, but - still lacks 2.6 support. - - - Added shared memory ID to LMR structure. Shared memory is - still not fully supported in the reference implementation, but - the common code will appear soon. - - * Bug fixes - - Various Makefiles fixed to use the correct dat registry - library in its new location (as of Beta 2.03) - - Simple reorg of dat headers files to be consistent with - the spec. - - fixed bug in vapi_dto.h recv macro where we could have an - uninitialized pointer. - - Simple fix in dat_dr.c to initialize a variable early in the - routine before errors occur. - - Removed private data pointers from a CONNECTED event, as - there should be no private data here. - - dat_strerror no longer returns an uninitialized pointer if - the error code is not recognized. - - dat_dup_connect() will reject 0 timeout values, per the - spec. - - Removed unused internal_hca_names parameter from - ib_enum_hcas() interface. - - Use a temporary DAT_EVENT for kdapl up-calls rather than - making assumptions about the current event queue. - - Relocated some platform dependent code to an OSD file. - - Eliminated several #ifdefs in .c files. - - Inserted a missing unlock() on an error path. - - Added bounds checking on size of private data to make sure - we don't overrun the buffer - - Fixed a kdapltest problem that caused a machine to panic if - the user hit ^C - - kdapltest now uses spin locks more appropriate for their - context, e.g. spin_lock_bh or spin_lock_irq. Under a - conditional. - - Fixed kdapltest loops that drain EVDs so they don't go into - endless loops. - - Fixed bug in dapl_llist_add_entry link list code. - - Better error reporting from provider code. - - Handle case of user trying to reap DTO completions on an - EP that has been freed. - - No longer hold lock when ep_free() calls into provider layer - - Fixed cr_accept() to not have an extra copy of - private_data. - - Verify private_data pointers before using them, avoid - panic. - - Fixed memory leak in kdapltest where print buffers were not - getting reclaimed. - - - - DAPL BETA 2.03 RELEASE NOTES - - There are some prominent features in this release: - 1) dapltest/kdapltest. The dapltest test program has been - rearchitected such that a kernel version is now available - to test with kdapl. The most obvious change is a new - directory structure that more closely matches other core - dapl software. But there are a large number of changes - throughout the source files to accommodate both the - differences in udapl/kdapl interfaces, but also more mundane - things such as printing. - - The new dapltest is in the tree at ./test/dapltest, while the - old remains at ./test/udapl/dapltest. For this release, we - have maintained both versions. In a future release, perhaps - the next release, the old dapltest directory will be - removed. Ongoing development will only occur in the new tree. - - 2) DAT 1.1 compliance. The DAT Collaborative has been busy - finalizing the 1.1 revision of the spec. The header files - have been reviewed and posted on the DAT Collaborative web - site, they are now in full compliance. - - The reference implementation has been at a 1.1 level for a - while. The current implementation has some features that will - be part of the 1.2 DAT specification, but only in places - where full compatibility can be maintained. - - 3) The DAT Registry has undergone some positive changes for - robustness and support of more platforms. It now has the - ability to support several identical provider names - simultaneously, which enables the same dat.conf file to - support multiple platforms. The registry will open each - library and return when successful. For example, a dat.conf - file may contain multiple provider names for ex0a, each - pointing to a different library that may represent different - platforms or vendors. This simplifies distribution into - different environments by enabling the use of common - dat.conf files. - - In addition, there are a large number of bug fixes throughout - the code. Bug reports and fixes have come from a number of - companies. - - Also note that the Release notes are cleaned up, no longer - containing the complete text of previous releases. - - * EVDs no longer support DTO and CONNECTION event types on the - same EVD. NOTE: The problem is maintaining the event ordering - between two channels such that no DTO completes before a - connection is received; and no DTO completes after a - disconnect is received. For 90% of the cases this can be made - to work, but the remaining 10% will cause serious performance - degradation to get right. - - NEW SINCE Beta 2.2 - - * DAT 1.1 spec compliance. This includes some new types, error - codes, and moving structures around in the header files, - among other things. Note the Class bits of dat_error.h have - returned to a #define (from an enum) to cover the broadest - range of platforms. - - * Several additions for robustness, including handle and - pointer checking, better argument checking, state - verification, etc. Better recovery from error conditions, - and some assert()s have been replaced with 'if' statements to - handle the error. - - * EVDs now maintain the actual queue length, rather than the - requested amount. Both the DAT spec and IB (and other - transports) allow the underlying implementation to provide - more CQ entries than requested. - - Requests for the same number of entries contained by an EVD - return immediate success. - - * kDAPL enhancements: - - module parameters & OS support calls updated to work with - more recent Linux kernels. - - kDAPL build options changes to match the Linux kernel, vastly - reducing the size and making it more robust. - - kDAPL unload now works properly - - kDAPL takes a reference on the provider driver when it - obtains a verbs vector, to prevent an accidental unload - - Cleaned out all of the uDAPL cruft from the linux/osd files. - - * New dapltest (see above). - - * Added a new I/O trace facility, enabling a developer to debug - all I/O that are in progress or recently completed. Default - is OFF in the build. - - * 0 timeout connections now refused, per the spec. - - * Moved the remaining uDAPL specific files from the common/ - directory to udapl/. Also removed udapl files from the kdapl - build. - - * Bug fixes - - Better error reporting from provider layer - - Fixed race condition on reference counts for posting DTO - ops. - - Use DAT_COMPLETION_SUPPRESS_FLAG to suppress successful - completion of dapl_rmr_bind (instead of - DAT_COMPLEITON_UNSIGNALLED, which is for non-notification - completion). - - Verify psp_flags value per the spec - - Bug in psp_create_any() checking psp_flags fixed - - Fixed type of flags in ib_disconnect from - DAT_COMPLETION_FLAGS to DAT_CLOSE_FLAGS - - Removed hard coded check for ASYNC_EVD. Placed all EVD - prevention in evd_stream_merging_supported array, and - prevent ASYNC_EVD from being created by an app. - - ep_free() fixed to comply with the spec - - Replaced various printfs with dbg_log statements - - Fixed kDAPL interaction with the Linux kernel - - Corrected phy_register protottype - - Corrected kDAPL wait/wakeup synchronization - - Fixed kDAPL evd_kcreate() such that it no longer depends - on uDAPL only code. - - dapl_provider.h had wrong guard #def: changed DAT_PROVIDER_H - to DAPL_PROVIDER_H - - removed extra (and bogus) call to dapls_ib_completion_notify() - in evd_kcreate.c - - Inserted missing error code assignment in - dapls_rbuf_realloc() - - When a CONNECTED event arrives, make sure we are ready for - it, else something bad may have happened to the EP and we - just return; this replaces an explicit check for a single - error condition, replacing it with the general check for the - state capable of dealing with the request. - - Better context pointer verification. Removed locks around - call to ib_disconnect on an error path, which would result - in a deadlock. Added code for BROKEN events. - - Brought the vapi code more up to date: added conditional - compile switches, removed obsolete __ActivePort, deal - with 0 length DTO - - Several dapltest fixes to bring the code up to the 1.1 - specification. - - Fixed mismatched dalp_os_dbg_print() #else dapl_Dbg_Print(); - the latter was replaced with the former. - - ep_state_subtype() now includes UNCONNECTED. - - Added some missing ibapi error codes. - - - - NEW SINCE Beta 2.1 - - * Changes for Erratta and 1.1 Spec - - Removed DAT_NAME_NOT_FOUND, per DAT erratta - - EVD's with DTO and CONNECTION flags set no longer valid. - - Removed DAT_IS_SUCCESS macro - - Moved provider attribute structures from vendor files to udat.h - and kdat.h - - kdapl UPCALL_OBJECT now passed by reference - - * Completed dat_strerr return strings - - * Now support interrupted system calls - - * dapltest now used dat_strerror for error reporting. - - * Large number of files were formatted to meet project standard, - very cosmetic changes but improves readability and - maintainability. Also cleaned up a number of comments during - this effort. - - * dat_registry and RPM file changes (contributed by Steffen Persvold): - - Renamed the RPM name of the registry to be dat-registry - (renamed the .spec file too, some cvs add/remove needed) - - Added the ability to create RPMs as normal user (using - temporal paths), works on SuSE, Fedora, and RedHat. - - 'make rpm' now works even if you didn't build first. - - Changed to using the GNU __attribute__((constructor)) and - __attribute__((destructor)) on the dat_init functions, dat_init - and dat_fini. The old -init and -fini options to LD makes - applications crash on some platforms (Fedora for example). - - Added support for 64 bit platforms. - - Added code to allow multiple provider names in the registry, - primarily to support ia32 and ia64 libraries simultaneously. - Provider names are now kept in a list, the first successful - library open will be the provider. - - * Added initial infrastructure for DAPL_DCNTR, a feature that - will aid in debug and tuning of a dapl implementation. Partial - implementation only at this point. - - * Bug fixes - - Prevent debug messages from crashing dapl in EVD completions by - verifying the error code to ensure data is valid. - - Verify CNO before using it to clean up in evd_free() - - CNO timeouts now return correct error codes, per the spec. - - cr_accept now complies with the spec concerning connection - requests that go away before the accept is invoked. - - Verify valid EVD before posting connection evens on active side - of a connection. EP locking also corrected. - - Clean up of dapltest Makefile, no longer need to declare - DAT_THREADSAFE - - Fixed check of EP states to see if we need to disconnect an - IA is closed. - - ep_free() code reworked such that we can properly close a - connection pending EP. - - Changed disconnect processing to comply with the spec: user will - see a BROKEN event, not DISCONNECTED. - - If we get a DTO error, issue a disconnect to let the CM and - the user know the EP state changed to disconnect; checked IBA - spec to make sure we disconnect on correct error codes. - - ep_disconnect now properly deals with abrupt disconnects on the - active side of a connection. - - PSP now created in the correct state for psp_create_any(), making - it usable. - - dapl_evd_resize() now returns correct status, instead of always - DAT_NOT_IMPLEMENTED. - - dapl_evd_modify_cno() does better error checking before invoking - the provider layer, avoiding bugs. - - Simple change to allow dapl_evd_modify_cno() to set the CNO to - NULL, per the spec. - - Added required locking around call to dapl_sp_remove_cr. - - - Fixed problems related to dapl_ep_free: the new - disconnect(abrupt) allows us to do a more immediate teardown of - connections, removing the need for the MAGIC_EP_EXIT magic - number/state, which has been removed. Mmuch cleanup of paths, - and made more robust. - - Made changes to meet the spec, uDAPL 1.1 6.3.2.3: CNO is - triggered if there are waiters when the last EVD is removed - or when the IA is freed. - - Added code to deal with the provider synchronously telling us - a connection is unreachable, and generate the appropriate - event. - - Changed timer routine type from unsigned long to uintptr_t - to better fit with machine architectures. - - ep.param data now initialized in ep_create, not ep_alloc. - - Or Gerlitz provided updates to Mellanox files for evd_resize, - fw attributes, many others. Also implemented changes for correct - sizes on REP side of a connection request. - - - - NEW SINCE Beta 2.0 - - * dat_echo now DAT 1.1 compliant. Various small enhancements. - - * Revamped atomic_inc/dec to be void, the return value was never - used. This allows kdapl to use Linux kernel equivalents, and - is a small performance advantage. - - * kDAPL: dapl_evd_modify_upcall implemented and tested. - - * kDAPL: physical memory registration implemented and tested. - - * uDAPL now builds cleanly for non-debug versions. - - * Default RDMA credits increased to 8. - - * Default ACK_TIMEOUT now a reasonable value (2 sec vs old 2 - months). - - * Cleaned up dat_error.h, now 1.1 compliant in comments. - - * evd_resize initial implementation. Untested. - - * Bug fixes - - __KDAPL__ is defined in kdat_config.h, so apps don't need - to define it. - - Changed include file ordering in kdat.h to put kdat_config.h - first. - - resolved connection/tear-down race on the client side. - - kDAPL timeouts now scaled properly; fixed 3 orders of - magnitude difference. - - kDAPL EVD callbacks now get invoked for all completions; old - code would drop them in heavy utilization. - - Fixed error path in kDAPL evd creation, so we no longer - leak CNOs. - - create_psp_any returns correct error code if it can't create - a connection qualifier. - - lock fix in ibapi disconnect code. - - kDAPL INFINITE waits now work properly (non connection - waits) - - kDAPL driver unload now works properly - - dapl_lmr_[k]create now returns 1.1 error codes - - ibapi routines now return DAT 1.1 error codes - - - - NEW SINCE Beta 1.10 - - * kDAPL is now part of the DAPL distribution. See the release - notes above. - - The kDAPL 1.1 spec is now contained in the doc/ subdirectory. - - * Several files have been moved around as part of the kDAPL - checkin. Some files that were previously in udapl/ are now - in common/, some in common are now in udapl/. The goal was - to make sure files are properly located and make sense for - the build. - - * Source code formatting changes for consistency. - - * Bug fixes - - dapl_evd_create() was comparing the wrong bit combinations, - allowing bogus EVDs to be created. - - Removed code that swallowed zero length I/O requests, which - are allowed by the spec and are useful to applications. - - Locking in dapli_get_sp_ep was asymmetric; fixed it so the - routine will take and release the lock. Cosmetic change. - - dapl_get_consuemr_context() will now verify the pointer - argument 'context' is not NULL. - - - OBTAIN THE CODE - - To obtain the tree for your local machine you can check it - out of the source repository using CVS tools. CVS is common - on Unix systems and available as freeware on Windows machines. - The command to anonymously obtain the source code from - Source Forge (with no password) is: - - cvs -d:pserver:anonymous@cvs.dapl.sourceforge.net:/cvsroot/dapl login - cvs -z3 -d:pserver:anonymous@cvs.dapl.sourceforge.net:/cvsroot/dapl co . - - When prompted for a password, simply press the Enter key. - - Source Forge also contains explicit directions on how to become - a developer, as well as how to use different CVS commands. You may - also browse the source code using the URL: - - http://svn.sourceforge.net/viewvc/dapl/trunk/ - - SYSTEM REQUIREMENTS - - This project has been implemented on Red Hat Linux 7.3, SuSE - SLES 8, 9, and 10, Windows 2000, RHEL 3.0, 4.0 and 5.0 and a few - other Linux distrubutions. The structure of the code is designed - to allow other operating systems to easily be adapted. - - The DAPL team has used Mellanox Tavor based InfiniBand HCAs for - development, and continues with this platform. Our HCAs use the - IB verbs API submitted by IBM. Mellanox has contributed an - adapter layer using their VAPI verbs API. Either platform is - available to any group considering DAPL work. The structure of - the uDAPL source allows other provider API sets to be easily - integrated. - - The development team uses any one of three topologies: two HCAs - in a single machine; a single HCA in each of two machines; and - most commonly, a switch. Machines connected to a switch may have - more than one HCA. - - The DAPL Plugfest revealed that switches and HCAs available from - most vendors will interoperate with little trouble, given the - most recent releases of software. The dapl reference team makes - no recommendation on HCA or switch vendors. - - Explicit machine configurations are available upon request. - - IN THE TREE - - The DAPL tree contains source code for the uDAPL and kDAPL - implementations, and also includes tests and documentation. - - Included documentation has the base level API of the - providers: OpenFabrics, IBM Access, and Mellanox Verbs API. Also - included are a growing number of DAPL design documents which - lead the reader through specific DAPL subsystems. More - design documents are in progress and will appear in the tree in - the near future. - - A small number of test applications and a unit test framework - are also included. dapltest is the primary testing application - used by the DAPL team, it is capable of simulating a variety of - loads and exercises a large number of interfaces. Full - documentation is included for each of the tests. - - Recently, the dapl conformance test has been added to the source - repository. The test provides coverage of the most common - interfaces, doing both positive and negative testing. Vendors - providing DAPL implementation are strongly encouraged to run - this set of tests. - - MAKEFILE NOTES - - There are a number #ifdef's in the code that were necessary - during early development. They are disappearing as we - have time to take advantage of features and work available from - newer releases of provider software. These #ifdefs are not - documented as the intent is to remove them as soon as possible. - - CONTRIBUTIONS - - As is common to Source Forge projects, there are a small number - of developers directly associated with the source tree and having - privileges to change the tree. Requested updates, changes, bug - fixes, enhancements, or contributions should be sent to - James Lentini at jlentinit@netapp.com for review. We welcome your - contributions and expect the quality of the project will - improve thanks to your help. - - The core DAPL team is: - - James Lentini - Arlin Davis - Steve Sears - - ... with contributions from a number of excellent engineers in - various companies contributing to the open source effort. - - - ONGOING WORK - - Not all of the DAPL spec is implemented at this time. - Functionality such as shared memory will probably not be - implemented by the reference implementation (there is a write up - on this in the doc/ area), and there are yet various cases where - work remains to be done. And of course, not all of the - implemented functionality has been tested yet. The DAPL team - continues to develop and test the tree with the intent of - completing the specification and delivering a robust and useful - implementation. - - -The DAPL Team -