On Wed, Jul 29, 2026 at 03:52:22PM -0700, Haiyang Zhang wrote:
> From: Haiyang Zhang <[email protected]>
>
> To support up to 8 packets per CQE, put two packet lengths and
> hash values into one PPI entry by using the reserved fields.
> Update ethtool handlers to set this feature.
> Update per queue stat to show the coalesced CQE counters.
> This feature is supported on NIC hardware showing the relevant
> PF flag.
>
> Signed-off-by: Haiyang Zhang <[email protected]>
> ---
> drivers/net/ethernet/microsoft/mana/mana_en.c | 137 ++++++++++++------
> .../ethernet/microsoft/mana/mana_ethtool.c | 30 +++-
> include/net/mana/gdma.h | 4 +
> include/net/mana/mana.h | 43 ++++--
> 4 files changed, 150 insertions(+), 64 deletions(-)
>
> diff --git a/drivers/net/ethernet/microsoft/mana/mana_en.c
> b/drivers/net/ethernet/microsoft/mana/mana_en.c
> index a8c329bdbacf..720d22e6aea9 100644
> --- a/drivers/net/ethernet/microsoft/mana/mana_en.c
> +++ b/drivers/net/ethernet/microsoft/mana/mana_en.c
> @@ -1241,6 +1241,9 @@ int mana_gd_query_device_cfg(struct gdma_context *gc,
> u32 proto_major_ver,
[...]
>
> +static void mana_process_one_rx_pkt(struct device *dev, struct mana_rxq *rxq,
> + struct mana_rxcomp_oob *oob,
> + u32 pktlen, u32 pkt_hash)
> +{
> + struct mana_recv_buf_oob *rxbuf_oob;
> + struct net_device *ndev = rxq->ndev;
> + void *old_buf = NULL;
> + bool old_fp;
> +
> + rxbuf_oob = &rxq->rx_oobs[rxq->buf_index];
> + WARN_ON_ONCE(rxbuf_oob->wqe_inf.wqe_size_in_bu != 1);
> +
> + if (unlikely(pktlen > rxq->datasize)) {
> + /* Increase it even if mana_rx_skb() isn't called. */
> + rxq->rx_cq.work_done++;
> +
> + ++ndev->stats.rx_dropped;
It looks like this code was moved from mana_process_rx_cqe, so this is prob
out of scope, but I saw this and was wondering if maybe rx_length_errors is more
appropriate?
from if_link.h:
* @rx_length_errors: Number of packets dropped due to invalid length.
* Part of aggregate "frame" errors in `/proc/net/dev`.
