[dpdk-dev] [PATCH v4 0/7] new mlx4 datapath bypassing ibverbs

Ferruh Yigit ferruh.yigit at intel.com
Thu Oct 5 20:48:04 CEST 2017

On 10/5/2017 10:33 AM, Ophir Munk wrote:
> 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
> - 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 (6):
>   net/mlx4: add simple Tx bypassing Verbs
>   net/mlx4: restore full Rx support bypassing Verbs
>   net/mlx4: restore Tx gather support
>   net/mlx4: restore Tx checksum offloads
>   net/mlx4: restore Rx offloads
>   net/mlx4: add loopback Tx from VF
> Ophir Munk (1):
>   net/mlx4: restore Rx scatter support

Hi Ophir,

I am a little confused, can you please help me?

Currently both mlx4 and mlx5 should support both rdma-core and MLX-OFED,
is this correct?

When I try to compile these patches with rdma-core, it is giving warning
for shared library [1].

If I try to compile with mlx-ofed, getting missing header error [2].

What is the dependency for mlx4 driver now?

mlx4_rxq.o: In function `mlx4_rxq_setup':
.../dpdk/drivers/net/mlx4/mlx4_rxq.c:393: undefined reference to
mlx4_txq.o: In function `mlx4_txq_setup':
.../dpdk/drivers/net/mlx4/mlx4_txq.c:429: undefined reference to

In file included from .../drivers/net/mlx4/mlx4_flow.c:66:
.../drivers/net/mlx4/mlx4_rxtx.h:43:10: fatal error:
'infiniband/mlx4dv.h' file not found
#include <infiniband/mlx4dv.h>

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