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List:       linux-rdma
Subject:    Re: [PATCH v1 for-next 0/7] Add support for multicast loopback prevention to mlx4
From:       Doug Ledford <dledford () redhat ! com>
Date:       2015-09-29 18:24:26
Message-ID: 560AD75A.7080700 () redhat ! com
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On 09/21/2015 10:24 AM, eran ben elisha wrote:
> On Thu, Aug 20, 2015 at 5:34 PM, Eran Ben Elisha <eranbe@mellanox.com> wrote:
>> Hi Doug,
>>
>> This patch-set adds a new  implementation for multicast loopback prevention for
>> mlx4 driver.  The current implementation is very limited, especially if link
>> layer is Ethernet. The new implementation is based on HW feature of dropping
>> incoming multicast packets if the sender QP counter index is equal to the
>> receiver counter index.
>>
>> Patch 0001 extends ib_uverbs_create_qp in order to allow receiving the
>> multicast loopback flag at create flags.
>> Patch 0002 adds an infrastructure for the counters' loopback prevention in the
>> mlx4_core.
>> Patch 0003 modifies mlx4_en QPs to use the new loopback prevention mode.
>> Patches 0004-0006 implements this feature for mlx4_ib driver.
>> Patch 0007 allows setting IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK in create_flag
>> field both from uverbs and ib_create_qp.
>>
>> Changes from v0:
>>   Move loopback assignment outside the for loop according to Yuval's comment
>>   rebase over to-be-rebased/for-4.3
>>
>>
>> Thanks,
>> Eran.
>>
>> Eran Ben Elisha (5):
>>   IB/core: Extend ib_uverbs_create_qp
>>   IB/core: Allow setting create flags in QP init attribute
>>   IB/mlx4: Add IB counters table
>>   IB/mlx4: Add counter based implementation for QP multicast loopback
>>     block
>>   IB/mlx4: Add support for blocking multicast loopback QP creation user
>>     flag
>>
>> Maor Gottlieb (2):
>>   net/mlx4_core: Add support for filtering multicast loopback
>>   net/mlx4_en: Implement mcast loopback prevention for ETH qps
> 
> Hi Doug,
> This version sits in the mailing list for a month with no comment.
> It has been tested by Christoph Lameter.
> When do you plan to take it into your tree?

I'm getting ready to tackle the for-next backlog.

> Eran.
> 
>>
>>  drivers/infiniband/core/uverbs.h                   |   1 +
>>  drivers/infiniband/core/uverbs_cmd.c               | 259 +++++++++++++++------
>>  drivers/infiniband/core/uverbs_main.c              |   1 +
>>  drivers/infiniband/hw/mlx4/mad.c                   |  25 +-
>>  drivers/infiniband/hw/mlx4/main.c                  |  66 ++++--
>>  drivers/infiniband/hw/mlx4/mlx4_ib.h               |  10 +-
>>  drivers/infiniband/hw/mlx4/qp.c                    |  88 ++++++-
>>  drivers/net/ethernet/mellanox/mlx4/en_main.c       |  22 ++
>>  drivers/net/ethernet/mellanox/mlx4/en_resources.c  |  25 ++
>>  drivers/net/ethernet/mellanox/mlx4/fw.c            |   6 +
>>  drivers/net/ethernet/mellanox/mlx4/mlx4_en.h       |   3 +-
>>  drivers/net/ethernet/mellanox/mlx4/qp.c            |  19 +-
>>  .../net/ethernet/mellanox/mlx4/resource_tracker.c  |  30 ++-
>>  include/linux/mlx4/device.h                        |   2 +
>>  include/linux/mlx4/qp.h                            |  24 +-
>>  include/uapi/rdma/ib_user_verbs.h                  |  26 +++
>>  16 files changed, 498 insertions(+), 109 deletions(-)
>>
>> --
>> 1.8.3.1
>>
>> --
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> 


-- 
Doug Ledford <dledford@redhat.com>
              GPG KeyID: 0E572FDD



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