[dpdk-dev] [PATCH] net/ice: add support for Auxiliary IP Offset Rx descriptor

[Wang, Haiyue]

> -----Original Message-----
> From: Guo, Junfeng <junfeng.guo at intel.com>
> Sent: Wednesday, August 26, 2020 11:22
> To: Zhang, Qi Z <qi.z.zhang at intel.com>; Wu, Jingjing <jingjing.wu at intel.com>; Xing, Beilei
> <beilei.xing at intel.com>
> Cc: dev at dpdk.org; Wang, Haiyue <haiyue.wang at intel.com>; Guo, Junfeng <junfeng.guo at intel.com>
> Subject: [PATCH] net/ice: add support for Auxiliary IP Offset Rx descriptor
> 
> Add RXDID #25 to support Auxiliary IP Offset Rx descriptor, including
> 	FlexiMD.4: Outer/Single IPv4 Header offset
> 	FlexiMD.5: Outer/Single IPv6 Header offset
> And parse the valid IP Offset into mbuf by flexible descriptor
> section via devargs "proto_xtr" with "proto_xtr=ip_offset".
> 
> This patch depends on:
> commit e0c8ed904083 (net/ice: optimize the FlexiMD hardware check)
> 
> Signed-off-by: Junfeng Guo <junfeng.guo at intel.com>
> ---
>  doc/guides/nics/ice.rst                 | 14 ++++-
>  drivers/net/ice/base/ice_lan_tx_rx.h    |  1 +
>  drivers/net/ice/ice_ethdev.c            | 10 +++-
>  drivers/net/ice/ice_ethdev.h            |  1 +
>  drivers/net/ice/ice_rxtx.c              | 77 +++++++++++++++++--------
>  drivers/net/ice/rte_pmd_ice.h           | 13 +++++
>  drivers/net/ice/rte_pmd_ice_version.map |  1 +
>  7 files changed, 90 insertions(+), 27 deletions(-)
> 

[...]

> +		/**
> +		 * No need to check XTR_MD.#_VLD bit in Status/Error fields for
> +		 * Protocol Offset according to CPK HAS 7.9.8.
> +		 */

These comments are no need, since HAS doc session is internal information, and the
code is clean enough: if (chk_valid) ... else...

> +		if (rte_le_to_cpu_16(desc->flex_ts.flex.aux0) != 0xFFFF)
> +			metadata = rte_le_to_cpu_16(desc->flex_ts.flex.aux0);
> +		else if (rte_le_to_cpu_16(desc->flex_ts.flex.aux1) != 0xFFFF)
> +			metadata = rte_le_to_cpu_16(desc->flex_ts.flex.aux1);

Others,

Acked-by: Haiyue Wang <haiyue.wang at intel.com>

> 2.25.1