Commit e872d0c1 authored by Julian Wiedmann's avatar Julian Wiedmann Committed by David S. Miller
Browse files

s390/qeth: count TX completion interrupts 



While the qdio layer already tracks the number of HW interrupts for a
device, there's value in understanding how many of them have been
raised due to our TX completion logic.

Signed-off-by: default avatarJulian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e5b0a1b7

drivers/s390/net/qeth_core.h

+1 −0
Original line number Diff line number Diff line
@@ -483,6 +483,7 @@ struct qeth_out_q_stats { 
	u64 stopped;

	u64 doorbell;

	u64 coal_frames;

	u64 completion_irq;

	u64 completion_yield;

	u64 completion_timer;

drivers/s390/net/qeth_core_main.c

+3 −1
Original line number Diff line number Diff line
@@ -1400,8 +1400,10 @@ static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, 
	int i;



	/* is PCI flag set on buffer? */

	if (buf->buffer->element[0].sflags & SBAL_SFLAGS0_PCI_REQ)

	if (buf->buffer->element[0].sflags & SBAL_SFLAGS0_PCI_REQ) {

		atomic_dec(&queue->set_pci_flags_count);

		QETH_TXQ_STAT_INC(queue, completion_irq);

	}



	qeth_tx_complete_buf(buf, error, budget);

drivers/s390/net/qeth_ethtool.c

+1 −0
Original line number Diff line number Diff line
@@ -41,6 +41,7 @@ static const struct qeth_stats txq_stats[] = { 
	QETH_TXQ_STAT("Queue stopped", stopped),

	QETH_TXQ_STAT("Doorbell", doorbell),

	QETH_TXQ_STAT("IRQ for frames", coal_frames),

	QETH_TXQ_STAT("Completion IRQ", completion_irq),

	QETH_TXQ_STAT("Completion yield", completion_yield),

	QETH_TXQ_STAT("Completion timer", completion_timer),

};