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liquidio: update VF's netdev->max_mtu if there's a change in PF's MTU 

A VF's MTU is capped at the parent PF's MTU.  So if there's a change in the
PF's MTU, then update the VF's netdev->max_mtu.

Also remove duplicate log messages for MTU change.

Signed-off-by: Veerasenareddy Burru <veerasenareddy.burru@cavium.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Veerasenareddy Burru 2017-08-15 16:26:22 -07:00 committed by David S. Miller
parent 5022111ecb
commit 251564f601
2 changed files with 6 additions and 6 deletions
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3
drivers/net/ethernet/cavium/liquidio/lio_core.c
View File

@ -165,9 +165,6 @@ void liquidio_link_ctrl_cmd_completion(void *nctrl_ptr)
/* If command is successful, change the MTU. */
netif_info(lio, probe, lio->netdev, "MTU Changed from %d to %d\n",
netdev->mtu, nctrl->ncmd.s.param1);
dev_info(&oct->pci_dev->dev, "%s MTU Changed from %d to %d\n",
netdev->name, netdev->mtu,
nctrl->ncmd.s.param1);
netdev->mtu = nctrl->ncmd.s.param1;
queue_delayed_work(lio->link_status_wq.wq,
&lio->link_status_wq.wk.work, 0);

9
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c
View File

@ -630,6 +630,12 @@ static void update_link_status(struct net_device *netdev,
txqs_stop(netdev);
}
if (lio->linfo.link.s.mtu != netdev->max_mtu) {
dev_info(&oct->pci_dev->dev, "Max MTU Changed from %d to %d\n",
netdev->max_mtu, lio->linfo.link.s.mtu);
netdev->max_mtu = lio->linfo.link.s.mtu;
}
if (lio->linfo.link.s.mtu < netdev->mtu) {
dev_warn(&oct->pci_dev->dev,
"PF has changed the MTU for gmx port. Reducing the mtu from %d to %d\n",
@ -1539,14 +1545,11 @@ static struct net_device_stats *liquidio_get_stats(struct net_device *netdev)
static int liquidio_change_mtu(struct net_device *netdev, int new_mtu)
{
struct lio *lio = GET_LIO(netdev);
struct octeon_device *oct = lio->oct_dev;
lio->mtu = new_mtu;
netif_info(lio, probe, lio->netdev, "MTU Changed from %d to %d\n",
netdev->mtu, new_mtu);
dev_info(&oct->pci_dev->dev, "%s MTU Changed from %d to %d\n",
netdev->name, netdev->mtu, new_mtu);
netdev->mtu = new_mtu;