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| author | Julian Wiedmann | 2019-04-17 18:17:33 +0200 |
|---|---|---|
| committer | David S. Miller | 2019-04-17 19:33:59 +0200 |
| commit | 73dc2daf110f4a4e777003b22dda09bb40948fc9 (patch) | |
| tree | 49b9f62d80fc361a419002b6d86ced8fe4230017 /drivers/s390/net/qeth_l2_main.c | |
| parent | s390/qeth: add TX multiqueue support for IQD devices (diff) | |
| download | kernel-qcow2-linux-73dc2daf110f4a4e777003b22dda09bb40948fc9.tar.gz kernel-qcow2-linux-73dc2daf110f4a4e777003b22dda09bb40948fc9.tar.xz kernel-qcow2-linux-73dc2daf110f4a4e777003b22dda09bb40948fc9.zip | |
s390/qeth: add TX multiqueue support for OSA devices
This adds trivial support for multiple TX queues on OSA-style devices
(both real HW and z/VM NICs). For now we expose the driver's existing
QoS mechanism via .ndo_select_queue, and adjust the number of available
TX queues when qeth_update_from_chp_desc() detects that the
HW configuration has changed.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/s390/net/qeth_l2_main.c')
| -rw-r--r-- | drivers/s390/net/qeth_l2_main.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index 1491281600c2..7381917f76dd 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -602,7 +602,6 @@ static netdev_tx_t qeth_l2_hard_start_xmit(struct sk_buff *skb, { struct qeth_card *card = dev->ml_priv; 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; @@ -610,14 +609,14 @@ static netdev_tx_t qeth_l2_hard_start_xmit(struct sk_buff *skb, if (IS_IQD(card)) queue = card->qdio.out_qs[qeth_iqd_translate_txq(dev, txq)]; else - queue = qeth_get_tx_queue(card, skb, ipv); + queue = card->qdio.out_qs[txq]; netif_stop_subqueue(dev, txq); if (IS_OSN(card)) rc = qeth_l2_xmit_osn(card, skb, queue); else - rc = qeth_xmit(card, skb, queue, ipv, + rc = qeth_xmit(card, skb, queue, qeth_get_ip_version(skb), qeth_l2_get_cast_type(skb), qeth_l2_fill_header); if (!rc) { @@ -638,8 +637,13 @@ static netdev_tx_t qeth_l2_hard_start_xmit(struct sk_buff *skb, static u16 qeth_l2_select_queue(struct net_device *dev, struct sk_buff *skb, struct net_device *sb_dev) { - return qeth_iqd_select_queue(dev, skb, qeth_l2_get_cast_type(skb), - sb_dev); + struct qeth_card *card = dev->ml_priv; + + if (IS_IQD(card)) + return qeth_iqd_select_queue(dev, skb, + qeth_l2_get_cast_type(skb), + sb_dev); + return qeth_get_priority_queue(card, skb); } static const struct device_type qeth_l2_devtype = { |