static u16 netvsc_select_queue(struct net_device *ndev, struct sk_buff *skb)
#endif
{
struct net_device_context *net_device_ctx = netdev_priv(ndev);
struct netvsc_device *nvsc_dev = net_device_ctx->nvdev;
struct sock *sk = skb->sk;
int q_idx = sk_tx_queue_get(sk);
if (q_idx < 0 || skb->ooo_okay ||
q_idx >= ndev->real_num_tx_queues) {
u16 hash = __skb_tx_hash(ndev, skb, VRSS_SEND_TAB_SIZE);
int new_idx;
new_idx = nvsc_dev->send_table[hash]
% nvsc_dev->num_chn;
if (q_idx != new_idx && sk &&
sk_fullsock(sk) && rcu_access_pointer(sk->sk_dst_cache))
sk_tx_queue_set(sk, new_idx);
q_idx = new_idx;
}
if (unlikely(!nvsc_dev->chan_table[q_idx].channel))
q_idx = 0;
return q_idx;
}
u16 mpodp_select_queue(struct net_device *dev, struct sk_buff *skb
#if (LINUX_VERSION_CODE > KERNEL_VERSION (3, 13, 0))
, void *accel_priv, select_queue_fallback_t fallback
#endif
)
{
int txq;
txq = (skb_rx_queue_recorded(skb)
? skb_get_rx_queue(skb)
: smp_processor_id());
txq = txq % dev->real_num_tx_queues;
return txq;
#if (LINUX_VERSION_CODE > KERNEL_VERSION (3, 13, 0))
return fallback(dev, skb) % dev->real_num_tx_queues;
#else
return __skb_tx_hash(dev, skb, dev->real_num_tx_queues);
#endif
}
/*
* Select queue for transmit.
*
* If a valid queue has already been assigned, then use that.
* Otherwise compute tx queue based on hash and the send table.
*
* This is basically similar to default (__netdev_pick_tx) with the added step
* of using the host send_table when no other queue has been assigned.
*
* TODO support XPS - but get_xps_queue not exported
*/
static u16 netvsc_select_queue(struct net_device *ndev, struct sk_buff *skb,
void *accel_priv, select_queue_fallback_t fallback)
{
struct net_device_context *net_device_ctx = netdev_priv(ndev);
unsigned int num_tx_queues = ndev->real_num_tx_queues;
struct sock *sk = skb->sk;
int q_idx = sk_tx_queue_get(sk);
if (q_idx < 0 || skb->ooo_okay || q_idx >= num_tx_queues) {
u16 hash = __skb_tx_hash(ndev, skb, VRSS_SEND_TAB_SIZE);
int new_idx;
new_idx = net_device_ctx->tx_send_table[hash] % num_tx_queues;
if (q_idx != new_idx && sk &&
sk_fullsock(sk) && rcu_access_pointer(sk->sk_dst_cache))
sk_tx_queue_set(sk, new_idx);
q_idx = new_idx;
}
return q_idx;
}
