diff options
| author | Govindarajulu Varadarajan <_govind@gmx.com> | 2015-10-01 14:18:47 +0530 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-10-05 03:51:35 -0700 |
| commit | 937317c7c1097aa878a5000e3aab616eb5c590c0 (patch) | |
| tree | 8360a5079b034204940f3adc686f8a7b543ef34b /drivers/net/ethernet/cisco/enic/enic_main.c | |
| parent | cc809237e1f215141165f221ad729803d88bcbbe (diff) | |
| download | op-kernel-dev-937317c7c1097aa878a5000e3aab616eb5c590c0.zip op-kernel-dev-937317c7c1097aa878a5000e3aab616eb5c590c0.tar.gz | |
enic: do hang reset only in case of tx timeout
The current code invokes hang reset in case of error interrupt. We should
hang reset only in case of tx timeout. This because of the way hang reset
is implemented in firmware. Hang reset takes more firmware resources than
soft reset. Adaptor does not generate error interrupt in case of tx
timeout.
Hang reset only in case of tx timeout, in .ndo_tx_timeout. Do soft reset
otherwise. Introduce deferred work, enic_tx_hang_reset, to do hang reset.
Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/cisco/enic/enic_main.c')
| -rw-r--r-- | drivers/net/ethernet/cisco/enic/enic_main.c | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c index 0b54429..0c22fd0 100644 --- a/drivers/net/ethernet/cisco/enic/enic_main.c +++ b/drivers/net/ethernet/cisco/enic/enic_main.c @@ -808,7 +808,7 @@ static void enic_set_rx_mode(struct net_device *netdev) static void enic_tx_timeout(struct net_device *netdev) { struct enic *enic = netdev_priv(netdev); - schedule_work(&enic->reset); + schedule_work(&enic->tx_hang_reset); } static int enic_set_vf_mac(struct net_device *netdev, int vf, u8 *mac) @@ -1928,6 +1928,19 @@ static int enic_dev_open(struct enic *enic) return err; } +static int enic_dev_soft_reset(struct enic *enic) +{ + int err; + + err = enic_dev_wait(enic->vdev, vnic_dev_soft_reset, + vnic_dev_soft_reset_done, 0); + if (err) + netdev_err(enic->netdev, "vNIC soft reset failed, err %d\n", + err); + + return err; +} + static int enic_dev_hang_reset(struct enic *enic) { int err; @@ -2064,6 +2077,26 @@ static void enic_reset(struct work_struct *work) rtnl_lock(); spin_lock(&enic->enic_api_lock); + enic_stop(enic->netdev); + enic_dev_soft_reset(enic); + enic_reset_addr_lists(enic); + enic_init_vnic_resources(enic); + enic_set_rss_nic_cfg(enic); + enic_dev_set_ig_vlan_rewrite_mode(enic); + enic_open(enic->netdev); + spin_unlock(&enic->enic_api_lock); + call_netdevice_notifiers(NETDEV_REBOOT, enic->netdev); + + rtnl_unlock(); +} + +static void enic_tx_hang_reset(struct work_struct *work) +{ + struct enic *enic = container_of(work, struct enic, tx_hang_reset); + + rtnl_lock(); + + spin_lock(&enic->enic_api_lock); enic_dev_hang_notify(enic); enic_stop(enic->netdev); enic_dev_hang_reset(enic); @@ -2587,6 +2620,7 @@ static int enic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) enic_set_rx_coal_setting(enic); INIT_WORK(&enic->reset, enic_reset); + INIT_WORK(&enic->tx_hang_reset, enic_tx_hang_reset); INIT_WORK(&enic->change_mtu_work, enic_change_mtu_work); for (i = 0; i < enic->wq_count; i++) |
