On Mon, Feb 06, 2023 at 12:19:21PM +0200, Vladimir Oltean wrote: > Yikes, ran git format-patch one patch too soon. There's also a hidden, > bonus patch "12/11" below. Doesn't affect first 11 patches in any way, > though. Here it is. > > From f7f10232622309d66a7a1ae1932d0c081936d546 Mon Sep 17 00:00:00 2001 > From: Vladimir Oltean <vladimir.oltean@xxxxxxx> > Date: Tue, 25 Oct 2022 02:32:24 +0300 > Subject: [RFC PATCH net-next 12/12] net: enetc: add support for XDP_TX > with zero-copy XDP sockets > > Add support for the case when the BPF program attached to a ring with an > XSK pool returns the XDP_TX verdict. The frame needs to go back on the > interface it came from. > > No dma_map or dma_sync_for_device is necessary, just a small impedance > matching logic with the XDP_TX procedure we have in place for non-XSK, > since the data structures are different (xdp_buff vs xdp_frame; cannot > have multi-buffer with XSK). > > In the TX confirmation routine, just release the RX buffer (as opposed > to non-XSK XDP_TX). Recycling might be possible, but I haven't > experimented with it. ugh premature response on 10/11. > > Signed-off-by: Vladimir Oltean <vladimir.oltean@xxxxxxx> > --- > drivers/net/ethernet/freescale/enetc/enetc.c | 35 ++++++++++++++++++-- > drivers/net/ethernet/freescale/enetc/enetc.h | 1 + > 2 files changed, 34 insertions(+), 2 deletions(-)
