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alx: enable multiple tx queues 

Enable multiple tx queues by default based on the number of online cpus. The
hardware supports up to four tx queues.

Based on the downstream driver at github.com/qca/alx

Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
zero-colors
Tobias Regnery 2016-11-15 12:43:16 +01:00 committed by David S. Miller
parent f58e0f7747
commit d768319cd4
1 changed files with 6 additions and 2 deletions
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8
drivers/net/ethernet/atheros/alx/main.c
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@ -834,7 +834,7 @@ static bool alx_enable_msix(struct alx_priv *alx)
{
int i, err, num_vec, num_txq, num_rxq;
num_txq = 1;
num_txq = min_t(int, num_online_cpus(), ALX_MAX_TX_QUEUES);
num_rxq = 1;
num_vec = max_t(int, num_txq, num_rxq) + 1;
@ -1241,6 +1241,9 @@ static int __alx_open(struct alx_priv *alx, bool resume)
if (err)
goto out_free_rings;
netif_set_real_num_tx_queues(alx->dev, alx->num_txq);
netif_set_real_num_rx_queues(alx->dev, alx->num_rxq);
/* clear old interrupts */
alx_write_mem32(&alx->hw, ALX_ISR, ~(u32)ALX_ISR_DIS);
@ -1749,7 +1752,8 @@ static int alx_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
goto out_pci_release;
}
netdev = alloc_etherdev(sizeof(*alx));
netdev = alloc_etherdev_mqs(sizeof(*alx),
ALX_MAX_TX_QUEUES, 1);
if (!netdev) {
err = -ENOMEM;
goto out_pci_release;