diff options
Diffstat (limited to 'drivers/net/ethernet/sfc')
| -rw-r--r-- | drivers/net/ethernet/sfc/ef10.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c index 5d46d155b64..2f77359607d 100644 --- a/drivers/net/ethernet/sfc/ef10.c +++ b/drivers/net/ethernet/sfc/ef10.c @@ -1766,6 +1766,8 @@ static int efx_ef10_handle_rx_event(struct efx_channel *channel, ((1 << ESF_DZ_RX_DSC_PTR_LBITS_WIDTH) - 1)); if (n_descs != rx_queue->scatter_n + 1) { + struct efx_ef10_nic_data *nic_data = efx->nic_data; + /* detect rx abort */ if (unlikely(n_descs == rx_queue->scatter_n)) { WARN_ON(rx_bytes != 0); @@ -1773,10 +1775,13 @@ static int efx_ef10_handle_rx_event(struct efx_channel *channel, return 0; } - if (unlikely(rx_queue->scatter_n != 0)) { - /* Scattered packet completions cannot be - * merged, so something has gone wrong. - */ + /* Check that RX completion merging is valid, i.e. + * the current firmware supports it and this is a + * non-scattered packet. + */ + if (!(nic_data->datapath_caps & + (1 << MC_CMD_GET_CAPABILITIES_OUT_RX_BATCHING_LBN)) || + rx_queue->scatter_n != 0 || rx_cont) { efx_ef10_handle_rx_bad_lbits( rx_queue, next_ptr_lbits, (rx_queue->removed_count + |