search for: total_packets

Hi all I''m hacking on a netback trying to identify whether TLB flushes causes heavy performance penalty on Tx path. The hack is quite nasty (you would not want to know, trust me). Basically what is doesn''t is, 1) alter network protocol to pass along mfns instead of grant references, 2) when the backend sees a new mfn, map it RO and cache it in its own address space. With this

...c irqreturn_t ixgbe_msix_clean_rx(i r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues); for (i = 0; i < q_vector->rxr_count; i++) { rx_ring = &(adapter->rx_ring[r_idx]); + if (!rx_ring->active) + continue; rx_ring->total_bytes = 0; rx_ring->total_packets = 0; #ifndef CONFIG_IXGBE_NAPI @@ -1501,6 +1559,8 @@ static irqreturn_t ixgbe_msix_clean_rx(i r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues); rx_ring = &(adapter->rx_ring[r_idx]); + if (!rx_ring->active) + return IRQ_HANDLED; /* disable interrupts on this...