diff options
| author |   Julian Wiedmann <jwi@linux.ibm.com> | 2019-08-23 11:48:49 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-08-24 16:39:18 -0700 |
| commit | eeac0e20a173dd9407e7092b3ddb45917249d68d (patch) | |
| tree | 2a139d635184a695d9dab34e440d36d578727280 /drivers/s390/net/qeth_l3_main.c | |
| parent | s390/qdio: let drivers opt-out from Output Queue scanning (diff) | |
| download | linux-dev-eeac0e20a173dd9407e7092b3ddb45917249d68d.tar.xz linux-dev-eeac0e20a173dd9407e7092b3ddb45917249d68d.zip | |
s390/qeth: collect accurate TX statistics
This consolidates the SW statistics code, and improves it to
(1) account for the header overhead of each segment on a TSO skb,
(2) count dangling packets as in-error (during eg. shutdown), and
(3) only count offloads when the skb was successfully transmitted.
We also count each segment of an TSO skb as one packet - except for
tx_dropped, to be consistent with dev->tx_dropped.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | drivers/s390/net/qeth_l3_main.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index 54799fe6a700..d7bfc7a0e4c0 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -1957,7 +1957,6 @@ static void qeth_l3_fill_header(struct qeth_qdio_out_q *queue, /* some HW requires combined L3+L4 csum offload: */ if (ipv == 4) hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_HDR_REQ; - QETH_TXQ_STAT_INC(queue, skbs_csum); } } @@ -2044,9 +2043,10 @@ static netdev_tx_t qeth_l3_hard_start_xmit(struct sk_buff *skb, u16 txq = skb_get_queue_mapping(skb); int ipv = qeth_get_ip_version(skb); struct qeth_qdio_out_q *queue; - int tx_bytes = skb->len; int rc; + if (!skb_is_gso(skb)) + qdisc_skb_cb(skb)->pkt_len = skb->len; if (IS_IQD(card)) { queue = card->qdio.out_qs[qeth_iqd_translate_txq(dev, txq)]; @@ -2069,11 +2069,8 @@ static netdev_tx_t qeth_l3_hard_start_xmit(struct sk_buff *skb, else rc = qeth_xmit(card, skb, queue, ipv, qeth_l3_fill_header); - if (!rc) { - QETH_TXQ_STAT_INC(queue, tx_packets); - QETH_TXQ_STAT_ADD(queue, tx_bytes, tx_bytes); + if (!rc) return NETDEV_TX_OK; - } tx_drop: QETH_TXQ_STAT_INC(queue, tx_dropped); |