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Commit 11095fdb authored by Netanel Belgazal's avatar Netanel Belgazal Committed by David S. Miller
Browse files

net: ena: add statistics for missed tx packets 



Add a new statistic to ethtool stats that show the number of packets
without transmit acknowledgement from ENA device.

Signed-off-by: default avatarNetanel Belgazal <netanel@amazon.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8c5c7abd

drivers/net/ethernet/amazon/ena/ena_ethtool.c

+1 −0
Original line number Diff line number Diff line
@@ -81,6 +81,7 @@ static const struct ena_stats ena_stats_tx_strings[] = { 
	ENA_STAT_TX_ENTRY(doorbells),

	ENA_STAT_TX_ENTRY(prepare_ctx_err),

	ENA_STAT_TX_ENTRY(bad_req_id),

	ENA_STAT_TX_ENTRY(missed_tx),

};



static const struct ena_stats ena_stats_rx_strings[] = {

drivers/net/ethernet/amazon/ena/ena_netdev.c

+17 −13
Original line number Diff line number Diff line
@@ -2648,7 +2648,7 @@ static int check_missing_comp_in_queue(struct ena_adapter *adapter, 
	struct ena_tx_buffer *tx_buf;

	unsigned long last_jiffies;

	u32 missed_tx = 0;

	int i;

	int i, rc = 0;



	for (i = 0; i < tx_ring->ring_size; i++) {

		tx_buf = &tx_ring->tx_buffer_info[i];
@@ -2662,6 +2662,8 @@ static int check_missing_comp_in_queue(struct ena_adapter *adapter, 


			tx_buf->print_once = 1;

			missed_tx++;

		}

	}



	if (unlikely(missed_tx > adapter->missing_tx_completion_threshold)) {

		netif_err(adapter, tx_err, adapter->netdev,
@@ -2671,12 +2673,14 @@ static int check_missing_comp_in_queue(struct ena_adapter *adapter, 
		adapter->reset_reason =

			ENA_REGS_RESET_MISS_TX_CMPL;

		set_bit(ENA_FLAG_TRIGGER_RESET, &adapter->flags);

				return -EIO;

			}

		}

		rc = -EIO;

	}



	return 0;

	u64_stats_update_begin(&tx_ring->syncp);

	tx_ring->tx_stats.missed_tx = missed_tx;

	u64_stats_update_end(&tx_ring->syncp);



	return rc;

}



static void check_for_missing_tx_completions(struct ena_adapter *adapter)

drivers/net/ethernet/amazon/ena/ena_netdev.h

+1 −0
Original line number Diff line number Diff line
@@ -185,6 +185,7 @@ struct ena_stats_tx { 
	u64 tx_poll;

	u64 doorbells;

	u64 bad_req_id;

	u64 missed_tx;

};



struct ena_stats_rx {