Commit 5c665f8c authored by Sameeh Jubran's avatar Sameeh Jubran Committed by David S. Miller
Browse files

net: ena: add support for reporting of packet drops 



1. Add support for getting tx drops from the device and saving them
in the driver.
2. Report tx via netdev stats.

Signed-off-by: default avatarIgor Chauskin <igorch@amazon.com>
Signed-off-by: default avatarGuy Tzalik <gtzalik@amazon.com>
Signed-off-by: default avatarArthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: default avatarSameeh Jubran <sameehj@amazon.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d4a8b3bb

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

+8 −0
Original line number Diff line number Diff line
@@ -404,6 +404,10 @@ struct ena_admin_basic_stats { 
	u32 rx_drops_low;



	u32 rx_drops_high;



	u32 tx_drops_low;



	u32 tx_drops_high;

};



struct ena_admin_acq_get_stats_resp {
@@ -1017,6 +1021,10 @@ struct ena_admin_aenq_keep_alive_desc { 
	u32 rx_drops_low;



	u32 rx_drops_high;



	u32 tx_drops_low;



	u32 tx_drops_high;

};



struct ena_admin_ena_mmio_req_read_less_resp {

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

+6 −0
Original line number Diff line number Diff line
@@ -3172,6 +3172,7 @@ static void ena_get_stats64(struct net_device *netdev, 
	struct ena_ring *rx_ring, *tx_ring;

	unsigned int start;

	u64 rx_drops;

	u64 tx_drops;

	int i;



	if (!test_bit(ENA_FLAG_DEV_UP, &adapter->flags))
@@ -3206,9 +3207,11 @@ static void ena_get_stats64(struct net_device *netdev, 
	do {

		start = u64_stats_fetch_begin_irq(&adapter->syncp);

		rx_drops = adapter->dev_stats.rx_drops;

		tx_drops = adapter->dev_stats.tx_drops;

	} while (u64_stats_fetch_retry_irq(&adapter->syncp, start));



	stats->rx_dropped = rx_drops;

	stats->tx_dropped = tx_drops;



	stats->multicast = 0;

	stats->collisions = 0;
@@ -4517,14 +4520,17 @@ static void ena_keep_alive_wd(void *adapter_data, 
	struct ena_adapter *adapter = (struct ena_adapter *)adapter_data;

	struct ena_admin_aenq_keep_alive_desc *desc;

	u64 rx_drops;

	u64 tx_drops;



	desc = (struct ena_admin_aenq_keep_alive_desc *)aenq_e;

	adapter->last_keep_alive_jiffies = jiffies;



	rx_drops = ((u64)desc->rx_drops_high << 32) | desc->rx_drops_low;

	tx_drops = ((u64)desc->tx_drops_high << 32) | desc->tx_drops_low;



	u64_stats_update_begin(&adapter->syncp);

	adapter->dev_stats.rx_drops = rx_drops;

	adapter->dev_stats.tx_drops = tx_drops;

	u64_stats_update_end(&adapter->syncp);

}

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

+1 −0
Original line number Diff line number Diff line
@@ -334,6 +334,7 @@ struct ena_stats_dev { 
	u64 interface_down;

	u64 admin_q_pause;

	u64 rx_drops;

	u64 tx_drops;

};



enum ena_flags_t {

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