[PATCH v11 0/4] net/zxdh: optimize Rx/Tx path performance

[Stephen Hemminger]

On Wed, 19 Aug 2026 17:52:59 +0800
Junlong Wang <wang.junlong1 at zte.com.cn> wrote:

> v11:
>   - Restructure queue types for cache locality and dead-code removal (patch 2/4),
>     optimize the packed-ring Rx path with a single-segment fast path,
>     MTU/scatter refactor, and xstats cleanup (patch 3/4), and rework the
>     packed-ring Tx flush with per-descriptor mbuf free, walk budget, and
>     masked prefetch index (patch 4/4).


Mostly ready, one more item flagged by AI review.
Sorry, for the typical AI flowery language here...



One item remains:

Warning -- patch 3/4 adds "uint64_t offloads;" to struct
zxdh_virtnet_rx (zxdh_rxtx.h). Patch 4/4's commit message says it
"drop[s] the unused uint64_t offloads field from struct
zxdh_virtnet_rx," but 4/4 never touches zxdh_rxtx.h -- the field is
still in the tree at the end of the series. It has no readers or
writers anywhere in the driver. Since patch 2/4 reorganised these
structs specifically for cache locality, please either drop the
field where it's introduced (3/4) or actually remove it in 4/4 so
the commit log matches the diff.