sunos man page for daplt

daplt(7D)							      Devices								 daplt(7D)

NAME
       daplt - Tavor uDAPL service driver

SYNOPSIS
       daplt@0:daplt

DESCRIPTION
       The daplt module is the driver component of the uDAPL service provider for Tavor which implements the provider functions of the uDAPL Spec-
       ification 1.2 described under libdat(3LIB).

       The daplt module is a child of the IB nexus driver, ib(7D), and layers on top of the Solaris kernel IB Transport Layer, ibtl(7D). The daplt
       driver uses the InfiniBand Transport Framework (IBTF). (See ibtl(7D), ibcm(7D), and ib(7D) to access privileged IB VERBS.)

       The daplt driver copies out various HCA H/W object reference handles, including working and completion queues and User Access Region regis-
       ters, to its own uDAPL service provider library for Tavor. The library can refer back to these object handles and use them  to  mmap(2)	in
       the  mapping  of these H/W queues and registers from the Tavor HCA driver, tavor(7D).  This process enables time-critical non-privileged IB
       VERBS such as send/receive work elements, RDMA read/write and memory window bind, to be invoked	in  the  userland  library  and  performed
       directly  by the firmware or hardware. As a result, OS and network stack are bypassed, achieving true zero data copy with the lowest possi-
       ble latency.

FILES
       /kernel/drv/sparcv9/daplt

	   64-bit SPARC ELF kernel driver

       /kernel/drv/daplt

	   32-bit x86 ELF kernel driver

       /kernel/drv/amd64/daplt

	   64-bit x86 ELF kernel driver

       /kernel/drv/daplt.conf

	   driver configuration file

       /dev/daplt

	   special character device.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Architecture		     |SPARC, x86		   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWdapltr		   |
       +-----------------------------+-----------------------------+

SEE ALSO
       mmap(2), libdat(3LIB), driver.conf(4), attributes(5), ib(7D), ibcm(7D), ibdm(7D), ibtl(7D), tavor(7D)

       uDAPL Specification 1.2

SunOS 5.10							    12 Oct 2004 							 daplt(7D)