diff options
| author | Florian Fainelli <f.fainelli@gmail.com> | 2017-01-20 11:08:26 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-01-22 16:56:06 -0500 |
| commit | 7b78be48a8eb6c34e4e1b1581eceff4074bb4bf1 (patch) | |
| tree | 3ebb082f364d287932652fda80230dfa253bc580 /drivers/net/ethernet/broadcom/bcmsysport.c | |
| parent | 9ca677b1bd8979f9a7702db5ed4028e4b8b232e8 (diff) | |
| download | linux-7b78be48a8eb6c34e4e1b1581eceff4074bb4bf1.tar.bz2 | |
net: systemport: Dynamically allocate number of TX rings
In preparation for adding SYSTEMPORT Lite, which has twice as less transmit
queues than SYSTEMPORT make sure we do allocate TX rings based on the
systemport,txq property to get an appropriate memory footprint.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/broadcom/bcmsysport.c')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bcmsysport.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c index 744ed6ddaf37..31bb2c3696ec 100644 --- a/drivers/net/ethernet/broadcom/bcmsysport.c +++ b/drivers/net/ethernet/broadcom/bcmsysport.c @@ -1752,6 +1752,10 @@ static int bcm_sysport_probe(struct platform_device *pdev) if (of_property_read_u32(dn, "systemport,num-rxq", &rxq)) rxq = 1; + /* Sanity check the number of transmit queues */ + if (!txq || txq > TDMA_NUM_RINGS) + return -EINVAL; + dev = alloc_etherdev_mqs(sizeof(*priv), txq, rxq); if (!dev) return -ENOMEM; @@ -1759,6 +1763,13 @@ static int bcm_sysport_probe(struct platform_device *pdev) /* Initialize private members */ priv = netdev_priv(dev); + /* Allocate number of TX rings */ + priv->tx_rings = devm_kcalloc(&pdev->dev, txq, + sizeof(struct bcm_sysport_tx_ring), + GFP_KERNEL); + if (!priv->tx_rings) + return -ENOMEM; + priv->irq0 = platform_get_irq(pdev, 0); priv->irq1 = platform_get_irq(pdev, 1); priv->wol_irq = platform_get_irq(pdev, 2); |