Re: [PATCH v6 0/5] new mlx4 datapath bypassing ibverbs

[gowrishankar muthukrishnan <gowrishankar.m@linux.vnet.ibm.com>]

On Tuesday 24 October 2017 11:59 AM, gowrishankar muthukrishnan wrote:
> Hi Adrien,
> I am trying to compile mlx4 (and later to try mlx5) pmd in RHEL 7.4 
> (ppc64le) without Mellanox OFED,
> using current master (which has below patch series).
>
> As I do so, I hit with below compile error:
>
>   dpdk/drivers/net/mlx4/mlx4.c:53:31: fatal error: 
> infiniband/mlx4dv.h: No such file or directory
>    #include <infiniband/mlx4dv.h>
>                                  ^
>   compilation terminated.
>   make[6]: *** [mlx4.o] Error 1
>
> I tried to find rpm for this directverbs include, but I could not. 
> Could you advice if I have to install any additional rpm in RHEL 7.4 ?
> To note, I have rdma-core and libibverbs installed.
>

I see we need rdma-core v15 atleast for mlx5 pmd (where as the version 
available in RHEL 7.4 is v13).

   https://patchwork.kernel.org/patch/9937201/

Similar dependency might be there for mlx4 as well. So I think it is not 
possible to compile it in RHEL 7.4 without dependent
rpms upgraded.

> Thanks,
> Gowrishankar
>
>
> On Thursday 12 October 2017 05:59 PM, Adrien Mazarguil wrote:
>> Hopefully the last iteration for this series.
>>
>> v6 (Adrien):
>> - Updated features documentation (mlx4.ini) in the relevant patches.
>> - Rebased on the latest changes brought by RSS support v2 series.
>>
>> v5 (Ophir & Adrien):
>> - Merged Rx scatter/Tx gather code back into individual Rx/Tx commits
>>    for consistency due to a couple of issues with gather-less Tx.
>> - Rebased on top of the latest mlx4 control path changes (RSS support).
>>
>> v4 (Ophir):
>> - Split "net/mlx4: restore Rx scatter support" commit from "net/mlx4:
>>    restore full Rx support bypassing Verbs" commit
>>
>> v3 (Adrien):
>> - Drop a few unrelated or unnecessary changes such as the removal of
>>    MLX4_PMD_TX_MP_CACHE.
>> - Move device checksum support detection code to its previous location.
>> - Fix include guard in mlx4_prm.h.
>> - Reorder #includes alphabetically.
>> - Replace MLX4_TRANSPOSE() macro with documented inline function.
>> - Remove extra spaces and blank lines.
>> - Use uint8_t * instead of char * for buffers.
>> - Replace mlx4_get_cqe() macro with a documented inline function.
>> - Replace several unsigned int with uint32_t.
>> - Add consistency to field names (sge_n => sges_n).
>> - Make mbuf size checks in RX queue setup function similar to mlx5.
>> - Update various comments.
>> - Fix indentation.
>> - Replace run-time endian conversion with static ones where possible.
>> - Reorder fields in struct rxq and struct txq for consistency, remove
>>    one level of unnecessary inner structures.
>> - Fix memory leak on Tx bounce buffer.
>> - Update commit logs.
>> - Fix remaining checkpatch warnings.
>>
>> v2 (Matan):
>> Rearange patches.
>> Semantics.
>> Enhancements.
>> Fix compilation issues.
>>
>> Moti Haimovsky (5):
>>    net/mlx4: add Tx bypassing Verbs
>>    net/mlx4: add Rx bypassing Verbs
>>    net/mlx4: restore Tx checksum offloads
>>    net/mlx4: restore Rx offloads
>>    net/mlx4: add loopback Tx from VF
>>
>>   doc/guides/nics/features/mlx4.ini |   6 +
>>   drivers/net/mlx4/mlx4.c           |  11 +
>>   drivers/net/mlx4/mlx4.h           |   2 +
>>   drivers/net/mlx4/mlx4_ethdev.c    |  10 +
>>   drivers/net/mlx4/mlx4_prm.h       | 151 +++++++
>>   drivers/net/mlx4/mlx4_rxq.c       | 156 +++++--
>>   drivers/net/mlx4/mlx4_rxtx.c      | 768 
>> ++++++++++++++++++++++++---------
>>   drivers/net/mlx4/mlx4_rxtx.h      |  54 +--
>>   drivers/net/mlx4/mlx4_txq.c       |  63 +++
>>   9 files changed, 948 insertions(+), 273 deletions(-)
>>   create mode 100644 drivers/net/mlx4/mlx4_prm.h
>>
>
>