From a24b4c6e9aab4f39982d40cfeb7c142e93310f8b Mon Sep 17 00:00:00 2001 From: Maciej Fijalkowski Date: Tue, 31 Jan 2023 21:45:06 +0100 Subject: ice: xsk: Do not convert to buff to frame for XDP_TX Let us store pointer to xdp_buff that came from xsk_buff_pool on tx_buf so that it will be possible to recycle it via xsk_buff_free() on Tx cleaning side. This way it is not necessary to do expensive copy to another xdp_buff backed by a newly allocated page. Signed-off-by: Maciej Fijalkowski Signed-off-by: Daniel Borkmann Reviewed-by: Alexander Lobakin Link: https://lore.kernel.org/bpf/20230131204506.219292-14-maciej.fijalkowski@intel.com --- drivers/net/ethernet/intel/ice/ice_txrx_lib.c | 22 ++++------------------ 1 file changed, 4 insertions(+), 18 deletions(-) (limited to 'drivers/net/ethernet/intel/ice/ice_txrx_lib.c') diff --git a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c index 3dcc40b96b58..9bbed3f14e42 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c @@ -275,7 +275,10 @@ static u32 ice_clean_xdp_irq(struct ice_tx_ring *xdp_ring) /* count head + frags */ ready_frames -= frags + 1; - ice_clean_xdp_tx_buf(xdp_ring, tx_buf); + if (xdp_ring->xsk_pool) + xsk_buff_free(tx_buf->xdp); + else + ice_clean_xdp_tx_buf(xdp_ring, tx_buf); ntc++; if (ntc == cnt) ntc = 0; @@ -407,23 +410,6 @@ int ice_xmit_xdp_ring(struct xdp_frame *xdpf, struct ice_tx_ring *xdp_ring) return __ice_xmit_xdp_ring(&xdp, xdp_ring); } -/** - * ice_xmit_xdp_buff - convert an XDP buffer to an XDP frame and send it - * @xdp: XDP buffer - * @xdp_ring: XDP Tx ring - * - * Returns negative on failure, 0 on success. - */ -int ice_xmit_xdp_buff(struct xdp_buff *xdp, struct ice_tx_ring *xdp_ring) -{ - struct xdp_frame *xdpf = xdp_convert_buff_to_frame(xdp); - - if (unlikely(!xdpf)) - return ICE_XDP_CONSUMED; - - return ice_xmit_xdp_ring(xdpf, xdp_ring); -} - /** * ice_finalize_xdp_rx - Bump XDP Tx tail and/or flush redirect map * @xdp_ring: XDP ring -- cgit v1.2.3-70-g09d2