Fab Tillier wrote: >> Fab & community, >> Are you good with this patch to allow simultaneous IBAT device >> access from user mode? > > Looks very reasonable to me, I'm surprised we've never run into this > issue before...
OK, thanks; will commit. Case addressed is some (>2) MPI ranks @ a single node all attempting to access the IBAT device. We were seeing E_PENDING being returned. > > -Fab > >> >> Thanks, >> >> Stan. >> >> >> --- C:/Documents and Settings/scsmith/Local Settings/Temp/ibat.cpp- >> revBASE.svn000.tmp.cpp Mon Aug 17 14:33:47 2009 >> +++ C:/Documents and Settings/scsmith/My Documents/openIB- >> windows/SVN/gen1/branches/WOF2-1/core/ibat/user/ibat.cpp Mon >> Aug 17 14:01:18 2009 @@ -98,7 +98,7 @@ >> return E_INVALIDARG; >> >> H hIbatDev = CreateFileW( IBAT_WIN32_NAME, >> - MAXIMUM_ALLOWED, 0, NULL, >> + MAXIMUM_ALLOWED,(FILE_SHARE_READ|FILE_SHARE_WRITE), NULL, >> OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL ); >> if( hIbatDev == INVALID_HANDLE_VALUE ) >> return HRESULT_FROM_WIN32( GetLastError() ); @@ -306,7 >> +306,7 @@ return E_NOTIMPL; >> >> H hIbatDev = CreateFileW( IBAT_WIN32_NAME, >> - MAXIMUM_ALLOWED, 0, NULL, >> + MAXIMUM_ALLOWED,(FILE_SHARE_READ|FILE_SHARE_WRITE), NULL, >> OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL ); >> if( hIbatDev == INVALID_HANDLE_VALUE ) >> return HRESULT_FROM_WIN32( GetLastError() ); _______________________________________________ ofw mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/ofw
