> -----Original Message-----
> From: Mingjin Ye <mingjinx...@intel.com>
> Sent: Wednesday, January 3, 2024 6:11 PM
> To: dev@dpdk.org
> Cc: Yang, Qiming <qiming.y...@intel.com>; Ye, MingjinX
> <mingjinx...@intel.com>; Su, Simei <simei...@intel.com>; Wu, Wenjun1
> <wenjun1...@intel.com>; Zhang, Yuying <yuying.zh...@intel.com>; Xing,
> Beilei <beilei.x...@intel.com>; Wu, Jingjing <jingjing...@intel.com>
> Subject: [PATCH v8 2/2] net/iavf: add diagnostic support in TX path
>
> The only way to enable diagnostics for TX paths is to modify the application
> source code. Making it difficult to diagnose faults.
>
> In this patch, the devarg option "mbuf_check" is introduced and the
> parameters are configured to enable the corresponding diagnostics.
>
> supported cases: mbuf, size, segment, offload.
> 1. mbuf: check for corrupted mbuf.
> 2. size: check min/max packet length according to hw spec.
> 3. segment: check number of mbuf segments not exceed hw limitation.
> 4. offload: check any unsupported offload flag.
>
> parameter format: mbuf_check=[mbuf,<case1>,<case2>]
> eg: dpdk-testpmd -a 0000:81:01.0,mbuf_check=[mbuf,size] -- -i
>
> Signed-off-by: Mingjin Ye <mingjinx...@intel.com>
> ---
> v2: Remove call chain.
> ---
> v3: Optimisation implementation.
> ---
> v4: Fix Windows os compilation error.
> ---
> v5: Split Patch.
> ---
> v6: remove strict.
> ---
> v7: Modify the description document.
> ---
> doc/guides/nics/intel_vf.rst | 9 ++++
> drivers/net/iavf/iavf.h | 12 +++++
> drivers/net/iavf/iavf_ethdev.c | 76 ++++++++++++++++++++++++++
> drivers/net/iavf/iavf_rxtx.c | 98 ++++++++++++++++++++++++++++++++++
> drivers/net/iavf/iavf_rxtx.h | 2 +
> 5 files changed, 197 insertions(+)
>
> diff --git a/doc/guides/nics/intel_vf.rst b/doc/guides/nics/intel_vf.rst index
> ad08198f0f..bda6648726 100644
> --- a/doc/guides/nics/intel_vf.rst
> +++ b/doc/guides/nics/intel_vf.rst
> @@ -111,6 +111,15 @@ For more detail on SR-IOV, please refer to the
> following documents:
> by setting the ``devargs`` parameter like ``-a 18:01.0,no-poll-on-link-
> down=1``
> when IAVF is backed by an Intel\ |reg| E810 device or an Intel\ |reg| 700
> Series Ethernet device.
>
> + When IAVF is backed by an Intel\ |reg| E810 device or an Intel\ |reg| 700
> series Ethernet devices.
> + Set the ``devargs`` parameter ``mbuf_check`` to enable TX diagnostics.
> For
> example,
> + ``-a 18:01.0,mbuf_check=mbuf`` or ``-a 18:01.0,mbuf_check=[mbuf,size]``.
> Supported cases:
``-a 18:01.0,mbuf_check=<case>`` or ``-a
18:01.0,mbuf_check=[<case1>,<case2>...]``
> +
> + * mbuf: Check for corrupted mbuf.
> + * size: Check min/max packet length according to hw spec.
> + * segment: Check number of mbuf segments not exceed hw limitation.
> + * offload: Check any unsupported offload flag.
please also describe how to get the error count by xstats_get, a testpmd
command is suggested
Btw, PATCH 1/2 as a fix has been merged seperately, new version can only target
to this patch only.
