On Sun, 4 Jan 2026 15:13:01 +0200 Gregory Etelson <[email protected]> wrote:
> In some cases application does not need to receive entire packet > from port hardware. > If application could fetch required data only and safely discard the > rest of Rx packet data, that could improve port performance by > reducing PCI bandwidth. > > The RTE_ETH_DEV_DISCARD_RX_DATA device capability flag notifies that > a port hardware supports Rx data discard. > > Signed-off-by: Gregory Etelson <[email protected]> > --- > lib/ethdev/rte_ethdev.h | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/lib/ethdev/rte_ethdev.h b/lib/ethdev/rte_ethdev.h > index a66c2abbdb..10938ddad3 100644 > --- a/lib/ethdev/rte_ethdev.h > +++ b/lib/ethdev/rte_ethdev.h > @@ -2170,6 +2170,8 @@ struct rte_eth_dev_owner { > * PMDs filling the queue xstats themselves should not set this flag > */ > #define RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS RTE_BIT32(6) > +/** Device supports Rx data discard */ > +#define RTE_ETH_DEV_DISCARD_RX_DATA RTE_BIT32(7) > /**@}*/ > > /** Just because HW can do a feature doesn't mean that DPDK has to support it. There needs to be more justification. Why not use a flow rule?
