Author: Bob Sharp <[EMAIL PROTECTED]>
Re-enable multicast and unicast after changing MTU.
Signed-off-by: Bob Sharp <[EMAIL PROTECTED]>
Signed-off-by: Sweta Bhatt <[EMAIL PROTECTED]>
Signed-off-by: Chien Tung <[EMAIL PROTECTED]>
--
drivers/infiniband/hw/nes/nes_nic.c | 20 ++++++++++++++++++++
1 files changed, 20 insertions(+), 0 deletions(-)
diff --git a/drivers/infiniband/hw/nes/nes_nic.c
b/drivers/infiniband/hw/nes/nes_nic.c
index 1b0938c..77e258a 100644
--- a/drivers/infiniband/hw/nes/nes_nic.c
+++ b/drivers/infiniband/hw/nes/nes_nic.c
@@ -918,6 +918,10 @@ static int nes_netdev_change_mtu(struct net_device
*netdev, int new_mtu)
struct nes_device *nesdev = nesvnic->nesdev;
int ret = 0;
u8 jumbomode = 0;
+ u32 nic_active;
+ u32 nic_active_bit;
+ u32 uc_all_active;
+ u32 mc_all_active;
if ((new_mtu < ETH_ZLEN) || (new_mtu > max_mtu))
return -EINVAL;
@@ -931,8 +935,24 @@ static int nes_netdev_change_mtu(struct net_device
*netdev, int new_mtu)
nes_nic_init_timer_defaults(nesdev, jumbomode);
if (netif_running(netdev)) {
+ nic_active_bit = 1 << nesvnic->nic_index;
+ mc_all_active = nes_read_indexed(nesdev,
+ NES_IDX_NIC_MULTICAST_ALL) & nic_active_bit;
+ uc_all_active = nes_read_indexed(nesdev,
+ NES_IDX_NIC_UNICAST_ALL) & nic_active_bit;
+
nes_netdev_stop(netdev);
nes_netdev_open(netdev);
+
+ nic_active = nes_read_indexed(nesdev,
+ NES_IDX_NIC_MULTICAST_ALL);
+ nic_active |= mc_all_active;
+ nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL,
+ nic_active);
+
+ nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL);
+ nic_active |= uc_all_active;
+ nes_write_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL, nic_active);
}
return ret;
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