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RDMA/nes: Fix VLAN support

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We need to account for the VLAN header size in nes_netdev_change_mtu()
and nes_netdev_init().  Also, add spin lock/unlock during VLAN RX
registration so only one process can assign VLAN group for a given
interface at a time.

Signed-off-by: Chien Tung <ctung@neteffect.com>
Signed-off-by: Glenn Streiff <gstreiff@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Chien Tung 2008-02-15 21:00:36 -06:00 committed by Roland Dreier
parent 11e0704b7e
commit edd2fd643c
1 changed files with 8 additions and 2 deletions
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10
drivers/infiniband/hw/nes/nes_nic.c
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@ -932,7 +932,7 @@ static int nes_netdev_change_mtu(struct net_device *netdev, int new_mtu)
return -EINVAL;
netdev->mtu = new_mtu;
nesvnic->max_frame_size = new_mtu+ETH_HLEN;
nesvnic->max_frame_size = new_mtu + VLAN_ETH_HLEN;
if (netdev->mtu > 1500) {
jumbomode=1;
@ -1494,10 +1494,15 @@ static void nes_netdev_vlan_rx_register(struct net_device *netdev, struct vlan_g
{
struct nes_vnic *nesvnic = netdev_priv(netdev);
struct nes_device *nesdev = nesvnic->nesdev;
struct nes_adapter *nesadapter = nesdev->nesadapter;
u32 u32temp;
unsigned long flags;
spin_lock_irqsave(&nesadapter->phy_lock, flags);
nesvnic->vlan_grp = grp;
nes_debug(NES_DBG_NETDEV, "%s: %s\n", __func__, netdev->name);
/* Enable/Disable VLAN Stripping */
u32temp = nes_read_indexed(nesdev, NES_IDX_PCIX_DIAG);
if (grp)
@ -1506,6 +1511,7 @@ static void nes_netdev_vlan_rx_register(struct net_device *netdev, struct vlan_g
u32temp |= 0x02000000;
nes_write_indexed(nesdev, NES_IDX_PCIX_DIAG, u32temp);
spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
}
@ -1564,7 +1570,7 @@ struct net_device *nes_netdev_init(struct nes_device *nesdev,
nesvnic->msg_enable = netif_msg_init(debug, default_msg);
nesvnic->netdev_index = nesdev->netdev_count;
nesvnic->perfect_filter_index = nesdev->nesadapter->netdev_count;
nesvnic->max_frame_size = netdev->mtu+netdev->hard_header_len;
nesvnic->max_frame_size = netdev->mtu + netdev->hard_header_len + VLAN_HLEN;
curr_qp_map = nic_qp_mapping_per_function[PCI_FUNC(nesdev->pcidev->devfn)];
nesvnic->nic.qp_id = curr_qp_map[nesdev->netdev_count].qpid;