| Message ID | 20210510093854.31652-4-magnus.karlsson@gmail.com |
|---|---|
| State | New |
| Headers | show |
| Series | i40e: ice: ixgbe: ixgbevf: igb: igc: add correct exception tracing for XDP | expand |
> -----Original Message----- > From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf Of > Magnus Karlsson > Sent: Monday, May 10, 2021 3:09 PM > To: Karlsson, Magnus <magnus.karlsson@intel.com>; intel-wired- > lan@lists.osuosl.org; Nguyen, Anthony L <anthony.l.nguyen@intel.com>; > Fijalkowski, Maciej <maciej.fijalkowski@intel.com> > Cc: netdev@vger.kernel.org; brouer@redhat.com > Subject: [Intel-wired-lan] [PATCH intel-net v2 3/6] ixgbe: add correct > exception tracing for XDP > > From: Magnus Karlsson <magnus.karlsson@intel.com> > > Add missing exception tracing to XDP when a number of different errors can > occur. The support was only partial. Several errors where not logged which > would confuse the user quite a lot not knowing where and why the packets > disappeared. > > Fixes: 33fdc82f0883 ("ixgbe: add support for XDP_TX action") > Fixes: d0bcacd0a130 ("ixgbe: add AF_XDP zero-copy Rx support") > Reported-by: Jesper Dangaard Brouer <brouer@redhat.com> > Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> > --- > drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 16 ++++++++-------- > drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c | 14 ++++++++------ > 2 files changed, 16 insertions(+), 14 deletions(-) > Tested-by: Vishakha Jambekar<vishakha.jambekar@intel.com>
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index c5ec17d19c59..2ac5b82676f3 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -2213,23 +2213,23 @@ static struct sk_buff *ixgbe_run_xdp(struct ixgbe_adapter *adapter, break; case XDP_TX: xdpf = xdp_convert_buff_to_frame(xdp); - if (unlikely(!xdpf)) { - result = IXGBE_XDP_CONSUMED; - break; - } + if (unlikely(!xdpf)) + goto out_failure; result = ixgbe_xmit_xdp_ring(adapter, xdpf); + if (result == IXGBE_XDP_CONSUMED) + goto out_failure; break; case XDP_REDIRECT: err = xdp_do_redirect(adapter->netdev, xdp, xdp_prog); - if (!err) - result = IXGBE_XDP_REDIR; - else - result = IXGBE_XDP_CONSUMED; + if (err) + goto out_failure; + result = IXGBE_XDP_REDIR; break; default: bpf_warn_invalid_xdp_action(act); fallthrough; case XDP_ABORTED: +out_failure: trace_xdp_exception(rx_ring->netdev, xdp_prog, act); fallthrough; /* handle aborts by dropping packet */ case XDP_DROP: diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c index 91ad5b902673..f72d2978263b 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c @@ -106,9 +106,10 @@ static int ixgbe_run_xdp_zc(struct ixgbe_adapter *adapter, if (likely(act == XDP_REDIRECT)) { err = xdp_do_redirect(rx_ring->netdev, xdp, xdp_prog); - result = !err ? IXGBE_XDP_REDIR : IXGBE_XDP_CONSUMED; + if (err) + goto out_failure; rcu_read_unlock(); - return result; + return IXGBE_XDP_REDIR; } switch (act) { @@ -116,16 +117,17 @@ static int ixgbe_run_xdp_zc(struct ixgbe_adapter *adapter, break; case XDP_TX: xdpf = xdp_convert_buff_to_frame(xdp); - if (unlikely(!xdpf)) { - result = IXGBE_XDP_CONSUMED; - break; - } + if (unlikely(!xdpf)) + goto out_failure; result = ixgbe_xmit_xdp_ring(adapter, xdpf); + if (result == IXGBE_XDP_CONSUMED) + goto out_failure; break; default: bpf_warn_invalid_xdp_action(act); fallthrough; case XDP_ABORTED: +out_failure: trace_xdp_exception(rx_ring->netdev, xdp_prog, act); fallthrough; /* handle aborts by dropping packet */ case XDP_DROP: