diff options
| author |   Arjun Vynipadath <arjun@chelsio.com> | 2018-03-01 15:01:04 +0530 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-03-04 18:11:30 -0500 |
| commit | 0913667ab3ad9e6c1797384410a0755757bcee55 (patch) | |
| tree | 04764cc55956e1fb9f3f0e7bc79e049d26183847 /drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c | |
| parent | Merge branch 'dsa-serdes-stats' (diff) | |
| download | linux-dev-0913667ab3ad9e6c1797384410a0755757bcee55.tar.xz linux-dev-0913667ab3ad9e6c1797384410a0755757bcee55.zip | |
cxgb4vf: Forcefully link up virtual interfaces
The Virtual Interfaces are connected to an internal switch on the chip
which allows VIs attached to the same port to talk to each other even
when the port link is down. As a result, we generally want to always
report a VI's link as being "up".
Based on the original work by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Arjun Vynipadath <arjun@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c index b7e79e64d2ed..361de86b65b9 100644 --- a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c @@ -155,8 +155,6 @@ void t4vf_os_link_changed(struct adapter *adapter, int pidx, int link_ok) const char *fc; const struct port_info *pi = netdev_priv(dev); - netif_carrier_on(dev); - switch (pi->link_cfg.speed) { case 100: s = "100Mbps"; @@ -202,7 +200,6 @@ void t4vf_os_link_changed(struct adapter *adapter, int pidx, int link_ok) netdev_info(dev, "link up, %s, full-duplex, %s PAUSE\n", s, fc); } else { - netif_carrier_off(dev); netdev_info(dev, "link down\n"); } } @@ -278,6 +275,17 @@ static int link_start(struct net_device *dev) */ if (ret == 0) ret = t4vf_enable_vi(pi->adapter, pi->viid, true, true); + + /* The Virtual Interfaces are connected to an internal switch on the + * chip which allows VIs attached to the same port to talk to each + * other even when the port link is down. As a result, we generally + * want to always report a VI's link as being "up", provided there are + * no errors in enabling vi. + */ + + if (ret == 0) + netif_carrier_on(dev); + return ret; } |