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igb: add correct exception tracing for XDP 

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: 9cbc948b5a ("igb: add XDP support")
Reported-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Tested-by: Vishakha Jambekar <vishakha.jambekar@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Magnus Karlsson 2021-05-10 11:38:52 +02:00 committed by Tony Nguyen
parent 8281356b1c
commit 74431c40b9
1 changed files with 6 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/net/ethernet/intel/igb/igb_main.c
View File

@ -8394,18 +8394,20 @@ static struct sk_buff *igb_run_xdp(struct igb_adapter *adapter,
break;
case XDP_TX:
result = igb_xdp_xmit_back(adapter, xdp);
if (result == IGB_XDP_CONSUMED)
goto out_failure;
break;
case XDP_REDIRECT:
err = xdp_do_redirect(adapter->netdev, xdp, xdp_prog);
if (!err)
result = IGB_XDP_REDIR;
else
result = IGB_XDP_CONSUMED;
if (err)
goto out_failure;
result = IGB_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;
case XDP_DROP: