From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Nikita V. Shirokov" Subject: [PATCH bpf-next v3 04/11] bpf: make bnxt compatible w/ bpf_xdp_adjust_tail Date: Tue, 17 Apr 2018 21:42:16 -0700 Message-ID: <20180418044223.17685-5-tehnerd@tehnerd.com> References: <20180418044223.17685-1-tehnerd@tehnerd.com> Cc: netdev@vger.kernel.org, "Nikita V. Shirokov" To: Alexei Starovoitov , Daniel Borkmann , Michael Chan Return-path: Received: from mail-pl0-f68.google.com ([209.85.160.68]:38427 "EHLO mail-pl0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753931AbeDRNWK (ORCPT ); Wed, 18 Apr 2018 09:22:10 -0400 Received: by mail-pl0-f68.google.com with SMTP id c7-v6so1118606plr.5 for ; Wed, 18 Apr 2018 06:22:09 -0700 (PDT) In-Reply-To: <20180418044223.17685-1-tehnerd@tehnerd.com> Sender: netdev-owner@vger.kernel.org List-ID: w/ bpf_xdp_adjust_tail helper xdp's data_end pointer could be changed as well (only "decrease" of pointer's location is going to be supported). changing of this pointer will change packet's size. for bnxt driver we will just calculate packet's length unconditionally Acked-by: Alexei Starovoitov Signed-off-by: Nikita V. Shirokov --- drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c index 1389ab5e05df..1f0e872d0667 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c @@ -113,10 +113,10 @@ bool bnxt_rx_xdp(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, u16 cons, if (tx_avail != bp->tx_ring_size) *event &= ~BNXT_RX_EVENT; + *len = xdp.data_end - xdp.data; if (orig_data != xdp.data) { offset = xdp.data - xdp.data_hard_start; *data_ptr = xdp.data_hard_start + offset; - *len = xdp.data_end - xdp.data; } switch (act) { case XDP_PASS: -- 2.15.1