Manual Pages for UNIX Operating System command usage for man daplt

Devices                                                 daplt(7D)



NAME
     daplt - Tavor uDAPL service driver

SYNOPSIS
     daplt@0:daplt


DESCRIPTION
     The daplt module is the driver component of the  uDAPL  ser-
     vice  provider for Tavor which implements the provider func-
     tions  of  the  uDAPL  Specification  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 registers, 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 possible 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




SunOS 5.11          Last change: 12 Oct 2004                    1






Devices                                                 daplt(7D)



     See attributes(5) for descriptions of the  following  attri-
     butes:



     ____________________________________________________________
    |       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 5.11          Last change: 12 Oct 2004                    2