[openib-general] [PATCH] [MAD] changes to ib_create_send_mad

Thu May 5 11:48:08 PDT 2005

Sean Hefty wrote:
> Hal Rosenstock wrote:
> 
>> On PayloadLength, single segment sends are fine. It is multisegment
>> sends which seem wrong to me.
>>
>> Case 1: ib_create_send_mad with hdr_len 0x38 data_len 0x278
>>         paylen_newwin stored in header is 0x28C which seems correct
>>         this creates 4 segments
>>         1-3 segments paylen_newwin is 0x6E0, 4th segment is 0x34
>>
>> Case 2: ib_create_send_mad with hdr_len 0x38 data_len 0x620
>>         paylen_newwin stored in header is 0x634 which seems correct
>>         this creates 8 segments
>>         1-7 segments paylen_newwin is 0x6E0, 4th segment is 0xBC
>>
>> Last paylen_newwin in both cases appears to me to be correct but the 
>> paylen_newwin in the 1-n segments (0x6E0) seems wrong to me.

Err... I spoke too soon.  Here's what I see on both the send and receive 
side:  Using SA class,

hdr_len = 56, data_len = 632 (x278)
1st payload: 0x370, last: 0x34

hdr_len = 56, data_len = 1568 (x620)
1st payload: 0x6e0, last: 0xbc

The middle segments in both cases equal the 1st payload, which is what I 
would expect.  The payload values in both cases are correct.

- Sean

Output from the two runs below...

  grmpp: sent: 1, received: 0
  grmpp: starting client
  Madeye:sent GMP
  MAD version....0x1
  Class..........0x3 (Subnet admin.)
  Class version..0x2
  Method.........0x1 (Get)
  Status.........0x00
  Class specific.0x00
  Trans ID.......0x2a7bcba09000000
  Attr ID........0x35
  Attr modifier..0x0000
  Madeye:recv GMP
  MAD version....0x1
  Class..........0x3 (Subnet admin.)
  Class version..0x2
  Method.........0x81 (Get response)
  Status.........0x00
  Class specific.0x00
  Trans ID.......0x2a7bcba09000000
  Attr ID........0x35
  Attr modifier..0x0000
  Madeye:sent GMP
  MAD version....0x1
  Class..........0x3 (Subnet admin.)
  Class version..0x1
  Method.........0x12 (Get table)
  Status.........0x00
  Class specific.0x00
  Trans ID.......0xf000000
  Attr ID........0x00
  Attr modifier..0x0000
  RMPP version...0x1
  RMPP type......0x1 (Data)
  RMPP RRespTime.0x0
  RMPP flags.....0x3 (Active - First)
  RMPP status....0x0
  Seg number.....0x0001
  Payload len....0x0370
  Madeye:recv GMP
  MAD version....0x1
  Class..........0x3 (Subnet admin.)
  Class version..0x1
  Method.........0x92 (Get table response)
  Status.........0x00
  Class specific.0x00
  Trans ID.......0xf000000
  Attr ID........0x00
  Attr modifier..0x0000
  RMPP version...0x1
  RMPP type......0x2 (Ack)
  RMPP RRespTime.0x0
  RMPP flags.....0x1 (Active)
  RMPP status....0x0
  Seg number.....0x0001
  New window.....0x0041
  Madeye:sent GMP
  MAD version....0x1
  Class..........0x3 (Subnet admin.)
  Class version..0x1
  Method.........0x12 (Get table)
  Status.........0x00
  Class specific.0x00
  Trans ID.......0xf000000
  Attr ID........0x00
  Attr modifier..0x0000
  RMPP version...0x1
  RMPP type......0x1 (Data)
  RMPP RRespTime.0x0
  RMPP flags.....0x1 (Active)
  RMPP status....0x0
  Seg number.....0x0002
  Payload len....0x0370
  Madeye:sent GMP
  MAD version....0x1
  Class..........0x3 (Subnet admin.)
  Class version..0x1
  Method.........0x12 (Get table)
  Status.........0x00
  Class specific.0x00
  Trans ID.......0xf000000
  Attr ID........0x00
  Attr modifier..0x0000
  RMPP version...0x1
  RMPP type......0x1 (Data)
  RMPP RRespTime.0x0
  RMPP flags.....0x1 (Active)
  RMPP status....0x0
  Seg number.....0x0003
  Payload len....0x0370
  Madeye:sent GMP
  MAD version....0x1
  Class..........0x3 (Subnet admin.)
  Class version..0x1
  Method.........0x12 (Get table)
  Status.........0x00
  Class specific.0x00
  Trans ID.......0xf000000
  Attr ID........0x00
  Attr modifier..0x0000
  RMPP version...0x1
  RMPP type......0x1 (Data)
  RMPP RRespTime.0x0
  RMPP flags.....0x5 (Active - Last)
  RMPP status....0x0
  Seg number.....0x0004
  Payload len....0x0034
  Madeye:recv GMP
  MAD version....0x1
  Class..........0x3 (Subnet admin.)
  Class version..0x1
  Method.........0x92 (Get table response)
  Status.........0x00
  Class specific.0x00
  Trans ID.......0xf000000
  Attr ID........0x00
  Attr modifier..0x0000
  RMPP version...0x1
  RMPP type......0x2 (Ack)
  RMPP RRespTime.0x0
  RMPP flags.....0x1 (Active)
  RMPP status....0x0
  Seg number.....0x0004
  New window.....0x0041
  grmpp: test time: 1000 us
  grmpp: test complete

  grmpp: sent: 1, received: 0
  grmpp: starting client
  Madeye:sent GMP
  MAD version....0x1
  Class..........0x3 (Subnet admin.)
  Class version..0x2
  Method.........0x1 (Get)
  Status.........0x00
  Class specific.0x00
  Trans ID.......0x3a7bcba09000000
  Attr ID........0x35
  Attr modifier..0x0000
  Madeye:recv GMP
  MAD version....0x1
  Class..........0x3 (Subnet admin.)
  Class version..0x2
  Method.........0x81 (Get response)
  Status.........0x00
  Class specific.0x00
  Trans ID.......0x3a7bcba09000000
  Attr ID........0x35
  Attr modifier..0x0000
  Madeye:sent GMP
  MAD version....0x1
  Class..........0x3 (Subnet admin.)
  Class version..0x1
  Method.........0x12 (Get table)
  Status.........0x00
  Class specific.0x00
  Trans ID.......0x10000000
  Attr ID........0x00
  Attr modifier..0x0000
  RMPP version...0x1
  RMPP type......0x1 (Data)
  RMPP RRespTime.0x0
  RMPP flags.....0x3 (Active - First)
  RMPP status....0x0
  Seg number.....0x0001
  Payload len....0x06e0
  Madeye:recv GMP
  MAD version....0x1
  Class..........0x3 (Subnet admin.)
  Class version..0x1
  Method.........0x92 (Get table response)
  Status.........0x00
  Class specific.0x00
  Trans ID.......0x10000000
  Attr ID........0x00
  Attr modifier..0x0000
  RMPP version...0x1
  RMPP type......0x2 (Ack)
  RMPP RRespTime.0x0
  RMPP flags.....0x1 (Active)
  RMPP status....0x0
  Seg number.....0x0001
  New window.....0x0041
  Madeye:sent GMP
  MAD version....0x1
  Class..........0x3 (Subnet admin.)
  Class version..0x1
  Method.........0x12 (Get table)
  Status.........0x00
  Class specific.0x00
  Trans ID.......0x10000000
  Attr ID........0x00
  Attr modifier..0x0000
  RMPP version...0x1
  RMPP type......0x1 (Data)
  RMPP RRespTime.0x0
  RMPP flags.....0x1 (Active)
  RMPP status....0x0
  Seg number.....0x0002
  Payload len....0x06e0
  Madeye:sent GMP
  MAD version....0x1
  Class..........0x3 (Subnet admin.)
  Class version..0x1
  Method.........0x12 (Get table)
  Status.........0x00
  Class specific.0x00
  Trans ID.......0x10000000
  Attr ID........0x00
  Attr modifier..0x0000
  RMPP version...0x1
  RMPP type......0x1 (Data)
  RMPP RRespTime.0x0
  RMPP flags.....0x1 (Active)
  RMPP status....0x0
  Seg number.....0x0003
  Payload len....0x06e0
  Madeye:sent GMP
  MAD version....0x1
  Class..........0x3 (Subnet admin.)
  Class version..0x1
  Method.........0x12 (Get table)
  Status.........0x00
  Class specific.0x00
  Trans ID.......0x10000000
  Attr ID........0x00
  Attr modifier..0x0000
  RMPP version...0x1
  RMPP type......0x1 (Data)
  RMPP RRespTime.0x0
  RMPP flags.....0x1 (Active)
  RMPP status....0x0
  Seg number.....0x0004
  Payload len....0x06e0
  Madeye:sent GMP
  MAD version....0x1
  Class..........0x3 (Subnet admin.)
  Class version..0x1
  Method.........0x12 (Get table)
  Status.........0x00
  Class specific.0x00
  Trans ID.......0x10000000
  Attr ID........0x00
  Attr modifier..0x0000
  RMPP version...0x1
  RMPP type......0x1 (Data)
  RMPP RRespTime.0x0
  RMPP flags.....0x1 (Active)
  RMPP status....0x0
  Seg number.....0x0005
  Payload len....0x06e0
  Madeye:sent GMP
  MAD version....0x1
  Class..........0x3 (Subnet admin.)
  Class version..0x1
  Method.........0x12 (Get table)
  Status.........0x00
  Class specific.0x00
  Trans ID.......0x10000000
  Attr ID........0x00
  Attr modifier..0x0000
  RMPP version...0x1
  RMPP type......0x1 (Data)
  RMPP RRespTime.0x0
  RMPP flags.....0x1 (Active)
  RMPP status....0x0
  Seg number.....0x0006
  Payload len....0x06e0
  Madeye:sent GMP
  MAD version....0x1
  Class..........0x3 (Subnet admin.)
  Class version..0x1
  Method.........0x12 (Get table)
  Status.........0x00
  Class specific.0x00
  Trans ID.......0x10000000
  Attr ID........0x00
  Attr modifier..0x0000
  RMPP version...0x1
  RMPP type......0x1 (Data)
  RMPP RRespTime.0x0
  RMPP flags.....0x1 (Active)
  RMPP status....0x0
  Seg number.....0x0007
  Payload len....0x06e0
  Madeye:sent GMP
  MAD version....0x1
  Class..........0x3 (Subnet admin.)
  Class version..0x1
  Method.........0x12 (Get table)
  Status.........0x00
  Class specific.0x00
  Trans ID.......0x10000000
  Attr ID........0x00
  Attr modifier..0x0000
  RMPP version...0x1
  RMPP type......0x1 (Data)
  RMPP RRespTime.0x0
  RMPP flags.....0x5 (Active - Last)
  RMPP status....0x0
  Seg number.....0x0008
  Payload len....0x00bc
  Madeye:recv GMP
  MAD version....0x1
  Class..........0x3 (Subnet admin.)
  Class version..0x1
  Method.........0x92 (Get table response)
  Status.........0x00
  Class specific.0x00
  Trans ID.......0x10000000
  Attr ID........0x00
  Attr modifier..0x0000
  RMPP version...0x1
  RMPP type......0x2 (Ack)
  RMPP RRespTime.0x0
  RMPP flags.....0x1 (Active)
  RMPP status....0x0
  Seg number.....0x0008
  New window.....0x0041
  grmpp: test time: 1000 us
  grmpp: test complete