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: 0ba40af963f0 ("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>

diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
index fa47c14..ba26bb3 100644 (file)
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
@@ -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;