[Bug 1409904] Re: Needed patches for IB: Support for Flow Steering and Offload Support

[Rafael David Tinoco]

libmthca1 (new version: 1.0.6-1ubuntu2) (depends: libibverbs1 >=
1.1.7-1ubuntu2)

** Patch added: "trusty_libmthca_1.0.6-1ubuntu2.debdiff"
   https://bugs.launchpad.net/ubuntu/+source/libibverbs/+bug/1409904/+attachment/4386843/+files/trusty_libmthca_1.0.6-1ubuntu2.debdiff

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Title:
  Needed patches for IB: Support for Flow Steering and Offload Support

Status in libibverbs package in Ubuntu:
  In Progress

Bug description:
  [Impact]

  Trusty:

  * Today's libibverbs is missing important code for arm64 moonshot project.
  * Today's libmlx4 is missing important code for arm64 moonshot project.
    - Flow steering control for Openstack enablement on IPoIB
    - Offload support flags (for performance)
  * Today's tgt is suffering from the lack of iSER support (LP: #1445038).
  * qpid-cpp depends on ruby1.8 and should depend on ruby1.9 (LP: #1367255).

  Collateral Impact:

  - srptools
  - rdmacm-utils
  - perftest
  - librdmawrap2
  - libopenmpi1.6
  - libnes1
  - libmthca1
  - libmlx5-1
  - libipathverbs1
  - libibcm1
  - libcxgb3-1
  - ibverbs-utils
  - glusterfs-common
  - fio
  - libtotem-pg5
  - librdmacm1

  * libibverbs was re-factored and all rdepends should follow the ABI.
  * ALL SRUs should be done AT ONCE together because of ABI dependency.

  Utopic:

  *

  Vivid:

  *

  [ Test Case ]

  * libibverbs and libmlx4 are being tested by Mellanox (who better ?)
  * tgt test case can be seen in LP: #1445038

  Collateral Test Case:

  * Will test IB and iSER functionality with a PPA devoted to all these
  fixes.

  [Regression Potential]

  * Only for InfiniBand users who might rely on libibverbs and its rdepends.
  * Today's libibverbs, libmlx4, isc-dhcp and tgt (iser) had issues with IB.

  Other Cases to justify such SRU:
   - LP: #1401575 (dup: #1445038) - iSER not working in Trusty
   - LP: #1445038 - TGT does not support ISER discovery
   - LP: #1443648 - iSER logouts cause kernel panic in 3.13
   - LP: #1401141 - ISC DHCP server does not work with InfiniBand
   - LP: #1367255 - qpid-cpp depends on ruby1.8 and should depend on ruby1.9

  [Other Info]

  * Trusty will be fully IB compatible and fixed per Mellanox request.
  * Please do consider this as SRU and NOT as a -backports request.
  * Any doubt please contact: Rafael Tinoco <rafael.tinoco at canonical.com>

  ORIGINAL BUG DESCRIPTION:

  Mellanox is requesting Canonical and Ubuntu Community for some patches
  to be backported from upstream to libibverbs and libmlx4 in order to
  have their HW proper supported in Trusty, Utopic and Vivid. There are
  in charge of testing those packages and providing proper verification.

  The following patch list is needed:

  ******

  - libibverbs:

  Description: Add checksum offload support capability flag
  Origin: https://patchwork.kernel.org/patch/5572101/

  Description: Add general definitions to support uverbs extensions
  Origin: upstream, commit: cbf2a35162afcc9e97870b7b18d6477133a8dfa2

  Description: Add receive flow steering support
  Origin: upstream, commit: 389de6a6ef4ed90615629a9eed7f9f17bedf47e3

  Description: Infrastructure to support verbs extensions
  Origin: upstream, commit: 6be16586e081728a28fc41ce2fcc41867b7375ec

  - libmlx4:

  Description: Remove compatibility with libibverbs < 1.1.7-1ubuntu1
  Origin: upstream, commit: bcc5d064268073cb996bdbac1ae36728db3b2c96

  Description: Update to use libiverbs extension support
  Origin: upstream, commit: d00cfeb15ef4516539725b2f6c7d992e7201e13d

  Description: Add receive flow steering support
  Origin: upstream, commit: 1b6875d4c2cba3b751ad0b4286cf52b6a22bff97

  Description: Add support for IBV_SEND_IP_CSUM for posted send work-requests.
  Origin: https://patchwork.kernel.org/patch/5572111/

  ******

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