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rdma: fix bug related to ring buffer

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Fix a bug that caused some input packets to be dropped due to errors of
the type 'ip4 length > l2 length'. The change is related to the second
call to the rdma_device_input_bufs() function that happens when the end
of the ring buffer is reached.

Type: fix
Change-Id: I332d69ab22242b3443a0baca6e5dd86349a54765
Signed-off-by: Elias Rudberg <elias.rudberg@bahnhof.net>
(cherry picked from commit e5ecf3ea4b456afb710f4ed903cd7e4c1ae87859)
This commit is contained in:
Elias Rudberg
2020-02-18 12:12:25 +01:00
committed by Dave Wallace
parent 6f171a7756
commit 8e50e48f4d
1 changed files with 2 additions and 2 deletions
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4
src/plugins/rdma/input.c
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@ -318,8 +318,8 @@ rdma_device_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
&bt);
if (n_tail < n_rx_packets)
n_rx_bytes +=
rdma_device_input_bufs (vm, rd, &to_next[n_tail], &rxq->bufs[0], wc,
n_rx_packets - n_tail, &bt);
rdma_device_input_bufs (vm, rd, &to_next[n_tail], &rxq->bufs[0],
&wc[n_tail], n_rx_packets - n_tail, &bt);
rdma_device_input_ethernet (vm, node, rd, next_index);
vlib_put_next_frame (vm, node, next_index, n_left_to_next - n_rx_packets);