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nfp: use correct index to mask link state irq 

We were using an incorrect define to get the irq vector number.
NFP_NET_CFG_LSC is a control BAR offset, LSC interrupt vector
index is called NFP_NET_IRQ_LSC_IDX.  For machines with less
than 30 CPUs this meant that we were disabling/enabling IRQ 0.
For bigger hosts we were just playing with the 31st RX/TX
interrupt.

Fixes: 0ba40af963 ("nfp: move link state interrupt request/free calls")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2016-06-16 14:42:50 +01:00 committed by David S. Miller
parent d5d8760b78
commit ce449ba77a
1 changed files with 3 additions and 3 deletions
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6
drivers/net/ethernet/netronome/nfp/nfp_net_common.c
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@ -2015,7 +2015,7 @@ static void nfp_net_open_stack(struct nfp_net *nn)
netif_tx_wake_all_queues(nn->netdev);
enable_irq(nn->irq_entries[NFP_NET_CFG_LSC].vector);
enable_irq(nn->irq_entries[NFP_NET_IRQ_LSC_IDX].vector);
nfp_net_read_link_status(nn);
}
@ -2044,7 +2044,7 @@ static int nfp_net_netdev_open(struct net_device *netdev)
NFP_NET_IRQ_LSC_IDX, nn->lsc_handler);
if (err)
goto err_free_exn;
disable_irq(nn->irq_entries[NFP_NET_CFG_LSC].vector);
disable_irq(nn->irq_entries[NFP_NET_IRQ_LSC_IDX].vector);
nn->rx_rings = kcalloc(nn->num_rx_rings, sizeof(*nn->rx_rings),
GFP_KERNEL);
@ -2133,7 +2133,7 @@ static void nfp_net_close_stack(struct nfp_net *nn)
{
unsigned int r;
disable_irq(nn->irq_entries[NFP_NET_CFG_LSC].vector);
disable_irq(nn->irq_entries[NFP_NET_IRQ_LSC_IDX].vector);
netif_carrier_off(nn->netdev);
nn->link_up = false;