[net-next PATCH v9 04/11] octeontx2-pf: Add basic net_device_ops

Geetha sowjanya
2024-07-12T17:55:45Z

Implements basic set of net_device_ops.

Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Reviewed-by: Simon Horman <horms@kernel.org>
---
.../net/ethernet/marvell/octeontx2/nic/rep.c | 46 +++++++++++++++++++
1 file changed, 46 insertions(+)

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/rep.c b/drivers/net/ethernet/marvell/octeontx2/nic/rep.c
index 6ea5b4904a7c..a021350fe83a 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/rep.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/rep.c
@@ -28,6 +28,51 @@ MODULE_DESCRIPTION(DRV_STRING);
MODULE_LICENSE("GPL");
MODULE_DEVICE_TABLE(pci, rvu_rep_id_table);

+static netdev_tx_t rvu_rep_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct rep_dev *rep = netdev_priv(dev);
+ struct otx2_nic *pf = rep->mdev;
+ struct otx2_snd_queue *sq;
+ struct netdev_queue *txq;
+
+ sq = &pf->qset.sq[rep->rep_id];
+ txq = netdev_get_tx_queue(dev, 0);
+
+ if (!otx2_sq_append_skb(pf, txq, sq, skb, rep->rep_id)) {
+ netif_tx_stop_queue(txq);
+
+ /* Check again, in case SQBs got freed up */
+ smp_mb();
+ if (((sq->num_sqbs - *sq->aura_fc_addr) * sq->sqe_per_sqb)
+ > sq->sqe_thresh)
+ netif_tx_wake_queue(txq);
+
+ return NETDEV_TX_BUSY;
+ }
+ return NETDEV_TX_OK;
+}
+
+static int rvu_rep_open(struct net_device *dev)
+{
+ netif_carrier_on(dev);
+ netif_tx_start_all_queues(dev);
+ return 0;
+}
+
+static int rvu_rep_stop(struct net_device *dev)
+{
+ netif_carrier_off(dev);
+ netif_tx_disable(dev);
+
+ return 0;
+}
+
+static const struct net_device_ops rvu_rep_netdev_ops = {
+ .ndo_open = rvu_rep_open,
+ .ndo_stop = rvu_rep_stop,
+ .ndo_start_xmit = rvu_rep_xmit,
+};
+
static int rvu_rep_napi_init(struct otx2_nic *priv,
struct netlink_ext_ack *extack)
{
@@ -156,6 +201,7 @@ int rvu_rep_create(struct otx2_nic *priv, struct netlink_ext_ack *extack)

ndev->min_mtu = OTX2_MIN_MTU;
ndev->max_mtu = priv->hw.max_mtu;
+ ndev->netdev_ops = &rvu_rep_netdev_ops;
pcifunc = priv->rep_pf_map[rep_id];
rep->pcifunc = pcifunc;

--
2.25.1