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ice, xsk: Move Rx allocation out of while-loop

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Instead doing the check for allocation in each loop, move it outside
the while loop and do it every NAPI loop.

This change boosts the xdpsock rxdrop scenario with 15% more
packets-per-second.

Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Link: https://lore.kernel.org/r/20201211085410.59350-1-bjorn.topel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Björn Töpel 2020-12-11 09:54:10 +01:00 committed by Jakub Kicinski
parent bb7eae6dd2
commit 5bb0c4b5eb
1 changed files with 3 additions and 6 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

9
drivers/net/ethernet/intel/ice/ice_xsk.c
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@ -570,12 +570,6 @@ int ice_clean_rx_irq_zc(struct ice_ring *rx_ring, int budget)
u16 vlan_tag = 0;
u8 rx_ptype;
if (cleaned_count >= ICE_RX_BUF_WRITE) {
failure |= ice_alloc_rx_bufs_zc(rx_ring,
cleaned_count);
cleaned_count = 0;
}
rx_desc = ICE_RX_DESC(rx_ring, rx_ring->next_to_clean);
stat_err_bits = BIT(ICE_RX_FLEX_DESC_STATUS0_DD_S);
@ -642,6 +636,9 @@ int ice_clean_rx_irq_zc(struct ice_ring *rx_ring, int budget)
ice_receive_skb(rx_ring, skb, vlan_tag);
}
if (cleaned_count >= ICE_RX_BUF_WRITE)
failure = !ice_alloc_rx_bufs_zc(rx_ring, cleaned_count);
ice_finalize_xdp_rx(rx_ring, xdp_xmit);
ice_update_rx_ring_stats(rx_ring, total_rx_packets, total_rx_bytes);