From: Magnus Karlsson <magnus.karlsson@gmail.com>
To: magnus.karlsson@intel.com, intel-wired-lan@lists.osuosl.org,
anthony.l.nguyen@intel.com, maciej.fijalkowski@intel.com
Cc: netdev@vger.kernel.org, brouer@redhat.com
Subject: [PATCH intel-net v2 3/6] ixgbe: add correct exception tracing for XDP
Date: Mon, 10 May 2021 11:38:51 +0200 [thread overview]
Message-ID: <20210510093854.31652-4-magnus.karlsson@gmail.com> (raw)
In-Reply-To: <20210510093854.31652-1-magnus.karlsson@gmail.com>
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(-)
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:
--
2.29.0
next prev parent reply other threads:[~2021-05-10 9:39 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-10 9:38 [PATCH intel-net v2 0/6] i40e: ice: ixgbe: ixgbevf: igb: igc: add correct exception tracing for XDP Magnus Karlsson
2021-05-10 9:38 ` [PATCH intel-net v2 1/6] i40e: " Magnus Karlsson
2021-05-19 16:12 ` [Intel-wired-lan] " Bhandare, KiranX
2021-05-10 9:38 ` [PATCH intel-net v2 2/6] ice: " Magnus Karlsson
2021-05-19 16:14 ` [Intel-wired-lan] " Bhandare, KiranX
2021-05-10 9:38 ` Magnus Karlsson [this message]
2021-05-28 4:16 ` [Intel-wired-lan] [PATCH intel-net v2 3/6] ixgbe: " Jambekar, Vishakha
2021-05-10 9:38 ` [PATCH intel-net v2 4/6] igb: " Magnus Karlsson
2021-05-21 11:44 ` [Intel-wired-lan] " Jambekar, Vishakha
2021-05-10 9:38 ` [PATCH intel-net v2 5/6] ixgbevf: " Magnus Karlsson
2021-05-21 11:42 ` [Intel-wired-lan] " Jambekar, Vishakha
2021-05-10 9:38 ` [PATCH intel-net v2 6/6] igc: " Magnus Karlsson
2021-05-24 10:05 ` [Intel-wired-lan] " Dvora Fuxbrumer
2021-05-24 10:08 ` Dvora Fuxbrumer
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