Commit 24cfa8c7 authored by Shannon Nelson's avatar Shannon Nelson Committed by David S. Miller
Browse files

ionic: add Rx dropped packet counter 



Add a counter for packets dropped by the driver, typically
for bad size or a receive error seen by the device.

Signed-off-by: default avatarShannon Nelson <snelson@pensando.io>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 3daca28f

drivers/net/ethernet/pensando/ionic/ionic_lif.h

+1 −0
Original line number Diff line number Diff line
@@ -37,6 +37,7 @@ struct ionic_rx_stats { 
	u64 csum_complete;

	u64 csum_error;

	u64 buffers_posted;

	u64 dropped;

};



#define IONIC_QCQ_F_INITED		BIT(0)

drivers/net/ethernet/pensando/ionic/ionic_stats.c

+1 −0
Original line number Diff line number Diff line
@@ -39,6 +39,7 @@ static const struct ionic_stat_desc ionic_rx_stats_desc[] = { 
	IONIC_RX_STAT_DESC(csum_none),

	IONIC_RX_STAT_DESC(csum_complete),

	IONIC_RX_STAT_DESC(csum_error),

	IONIC_RX_STAT_DESC(dropped),

};



static const struct ionic_stat_desc ionic_txq_stats_desc[] = {

drivers/net/ethernet/pensando/ionic/ionic_txrx.c

+9 −3
Original line number Diff line number Diff line
@@ -152,12 +152,16 @@ static void ionic_rx_clean(struct ionic_queue *q, struct ionic_desc_info *desc_i 
	stats = q_to_rx_stats(q);

	netdev = q->lif->netdev;



	if (comp->status)

	if (comp->status) {

		stats->dropped++;

		return;

	}



	/* no packet processing while resetting */

	if (unlikely(test_bit(IONIC_LIF_QUEUE_RESET, q->lif->state)))

	if (unlikely(test_bit(IONIC_LIF_QUEUE_RESET, q->lif->state))) {

		stats->dropped++;

		return;

	}



	stats->pkts++;

	stats->bytes += le16_to_cpu(comp->len);
@@ -167,8 +171,10 @@ static void ionic_rx_clean(struct ionic_queue *q, struct ionic_desc_info *desc_i 
	else

		skb = ionic_rx_frags(q, desc_info, cq_info);



	if (unlikely(!skb))

	if (unlikely(!skb)) {

		stats->dropped++;

		return;

	}



	skb_record_rx_queue(skb, q->index);