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| author |   Julian Wiedmann <jwi@linux.ibm.com> | 2021-06-11 09:33:33 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-06-11 12:49:15 -0700 |
| commit | e872d0c1249be74a65723664a329ef5a9113cc40 (patch) | |
| tree | e6052b3a4b601bcc4ef15f4e5ffcc9a74eb20201 | |
| parent | Merge branch 'sja1110-dsa-tagging' (diff) | |
| download | linux-dev-e872d0c1249be74a65723664a329ef5a9113cc40.tar.xz linux-dev-e872d0c1249be74a65723664a329ef5a9113cc40.zip | |
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: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/s390/net/qeth_core.h | 1 | ||||
| -rw-r--r-- | drivers/s390/net/qeth_core_main.c | 4 | ||||
| -rw-r--r-- | drivers/s390/net/qeth_ethtool.c | 1 |
3 files changed, 5 insertions, 1 deletions
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h index fd9b869d278e..3a49ef8dd906 100644 --- a/drivers/s390/net/qeth_core.h +++ b/drivers/s390/net/qeth_core.h @@ -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; diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index a1f08e9aa064..9085f22ca34c 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -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); diff --git a/drivers/s390/net/qeth_ethtool.c b/drivers/s390/net/qeth_ethtool.c index 3a51bbff0ffe..190dac2065df 100644 --- a/drivers/s390/net/qeth_ethtool.c +++ b/drivers/s390/net/qeth_ethtool.c @@ -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), }; |