Refactor several ixgbe driver operations to check whether the netdev they operate on is enabled. This will allow the system to get synchronized, for example, during the PCI resets.
Signed-off-by: Sergey Temerkhanov <[email protected]> Reviewed-by: Aleksandr Loktionov <[email protected]> --- drivers/net/ethernet/intel/ixgbe/ixgbe.h | 5 +++ .../net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c | 13 +++++-- .../net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 34 ++++++++++++------- drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c | 20 ++++++++--- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 22 +++++++----- drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c | 4 +-- 6 files changed, 69 insertions(+), 29 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h index 594ccb28da20..e801433c5db8 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h @@ -955,6 +955,11 @@ extern char ixgbe_driver_name[]; extern char ixgbe_default_device_descr[]; #endif /* IXGBE_FCOE */ +static inline bool ixgbe_netif_running(struct net_device *netdev) +{ + return netif_running(netdev) && netif_device_present(netdev); +} + int ixgbe_open(struct net_device *netdev); int ixgbe_close(struct net_device *netdev); void ixgbe_up(struct ixgbe_adapter *adapter); diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c index 382d097e4b11..7c7408d32742 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c @@ -277,17 +277,23 @@ static void ixgbe_dcbnl_get_pfc_cfg(struct net_device *netdev, int priority, static void ixgbe_dcbnl_devreset(struct net_device *dev) { struct ixgbe_adapter *adapter = ixgbe_from_netdev(dev); + bool running; + + if (!netif_device_present(dev)) + return; + + running = ixgbe_netif_running(dev); while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state)) usleep_range(1000, 2000); - if (netif_running(dev)) + if (running) dev->netdev_ops->ndo_stop(dev); ixgbe_clear_interrupt_scheme(adapter); ixgbe_init_interrupt_scheme(adapter); - if (netif_running(dev)) + if (running) dev->netdev_ops->ndo_open(dev); clear_bit(__IXGBE_RESETTING, &adapter->state); @@ -515,6 +521,9 @@ static int ixgbe_dcbnl_ieee_setets(struct net_device *dev, if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE)) return -EINVAL; + if (!netif_device_present(dev)) + return -ENETDOWN; + if (!adapter->ixgbe_ieee_ets) { adapter->ixgbe_ieee_ets = kmalloc_obj(struct ieee_ets); if (!adapter->ixgbe_ieee_ets) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c index 36e43b5e88d1..02aff411426d 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c @@ -466,6 +466,9 @@ static int ixgbe_set_link_ksettings(struct net_device *netdev, u32 advertised, old; int err = 0; + if (!netif_device_present(netdev)) + return -ENETDOWN; + if ((hw->phy.media_type == ixgbe_media_type_copper) || (hw->phy.multispeed_fiber)) { /* @@ -576,9 +579,9 @@ static void ixgbe_set_pauseparam_finalize(struct net_device *netdev, /* If the thing changed then we'll update and use new autoneg. */ if (memcmp(fc, &hw->fc, sizeof(*fc))) { hw->fc = *fc; - if (netif_running(netdev)) + if (ixgbe_netif_running(netdev)) ixgbe_reinit_locked(adapter); - else + else if (netif_device_present(netdev)) ixgbe_reset(adapter); } } @@ -1266,7 +1269,7 @@ static int ixgbe_set_ringparam(struct net_device *netdev, while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state)) usleep_range(1000, 2000); - if (!netif_running(adapter->netdev)) { + if (!ixgbe_netif_running(adapter->netdev)) { for (i = 0; i < adapter->num_tx_queues; i++) adapter->tx_ring[i]->count = new_tx_count; for (i = 0; i < adapter->num_xdp_queues; i++) @@ -2249,10 +2252,11 @@ static void ixgbe_diag_test(struct net_device *netdev, struct ethtool_test *eth_test, u64 *data) { struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev); - bool if_running = netif_running(netdev); + bool if_running = ixgbe_netif_running(netdev); - if (ixgbe_removed(adapter->hw.hw_addr)) { - e_err(hw, "Adapter removed - test blocked\n"); + if (ixgbe_removed(adapter->hw.hw_addr) || + !netif_device_present(netdev)) { + e_err(hw, "Adapter removed or detached - test blocked\n"); data[0] = 1; data[1] = 1; data[2] = 1; @@ -2466,7 +2470,7 @@ static int ixgbe_nway_reset(struct net_device *netdev) { struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev); - if (netif_running(netdev)) + if (ixgbe_netif_running(netdev)) ixgbe_reinit_locked(adapter); return 0; @@ -2650,7 +2654,8 @@ static int ixgbe_set_coalesce(struct net_device *netdev, else /* rx only or mixed */ q_vector->itr = rx_itr_param; - ixgbe_write_eitr(q_vector); + if (netif_device_present(netdev)) + ixgbe_write_eitr(q_vector); } /* @@ -3694,6 +3699,9 @@ static int ixgbe_set_eee_e610(struct net_device *netdev, kedata->eee_enabled) return -EOPNOTSUPP; + if (!netif_device_present(netdev)) + return -ENETDOWN; + hw->phy.eee_speeds_advertised = kedata->eee_enabled ? hw->phy.eee_speeds_supported : 0; @@ -3709,9 +3717,9 @@ static int ixgbe_set_eee_e610(struct net_device *netdev, else adapter->flags2 &= ~IXGBE_FLAG2_EEE_ENABLED; - if (netif_running(netdev)) + if (ixgbe_netif_running(netdev)) ixgbe_reinit_locked(adapter); - else + else if (netif_device_present(netdev)) ixgbe_reset(adapter); return 0; @@ -3793,9 +3801,9 @@ static int ixgbe_set_eee(struct net_device *netdev, struct ethtool_keee *edata) } /* reset link */ - if (netif_running(netdev)) + if (ixgbe_netif_running(netdev)) ixgbe_reinit_locked(adapter); - else + else if (netif_device_present(netdev)) ixgbe_reset(adapter); return 0; @@ -3851,7 +3859,7 @@ static int ixgbe_set_priv_flags(struct net_device *netdev, u32 priv_flags) adapter->flags2 = flags2; /* reset interface to repopulate queues */ - if (netif_running(netdev)) + if (ixgbe_netif_running(netdev)) ixgbe_reinit_locked(adapter); } diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c index e338ff0e6522..a22c20c73cdc 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c @@ -853,6 +853,10 @@ int ixgbe_fcoe_enable(struct net_device *netdev) { struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev); struct ixgbe_fcoe *fcoe = &adapter->fcoe; + bool running; + + if (!netif_device_present(netdev)) + return -ENETDOWN; atomic_inc(&fcoe->refcnt); @@ -862,12 +866,14 @@ int ixgbe_fcoe_enable(struct net_device *netdev) if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) return -EINVAL; + running = ixgbe_netif_running(netdev); + e_info(drv, "Enabling FCoE offload features.\n"); if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) e_warn(probe, "Enabling FCoE on PF will disable legacy VFs\n"); - if (netif_running(netdev)) + if (running) netdev->netdev_ops->ndo_stop(netdev); /* Allocate per CPU memory to track DDP pools */ @@ -882,7 +888,7 @@ int ixgbe_fcoe_enable(struct net_device *netdev) ixgbe_clear_interrupt_scheme(adapter); ixgbe_init_interrupt_scheme(adapter); - if (netif_running(netdev)) + if (running) netdev->netdev_ops->ndo_open(netdev); return 0; @@ -899,6 +905,10 @@ int ixgbe_fcoe_enable(struct net_device *netdev) int ixgbe_fcoe_disable(struct net_device *netdev) { struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev); + bool running; + + if (!netif_device_present(netdev)) + return -ENETDOWN; if (!atomic_dec_and_test(&adapter->fcoe.refcnt)) return -EINVAL; @@ -906,8 +916,10 @@ int ixgbe_fcoe_disable(struct net_device *netdev) if (!(adapter->flags & IXGBE_FLAG_FCOE_ENABLED)) return -EINVAL; + running = ixgbe_netif_running(netdev); + e_info(drv, "Disabling FCoE offload features.\n"); - if (netif_running(netdev)) + if (running) netdev->netdev_ops->ndo_stop(netdev); /* Free per CPU memory to track DDP pools */ @@ -923,7 +935,7 @@ int ixgbe_fcoe_disable(struct net_device *netdev) ixgbe_clear_interrupt_scheme(adapter); ixgbe_init_interrupt_scheme(adapter); - if (netif_running(netdev)) + if (running) netdev->netdev_ops->ndo_open(netdev); return 0; diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 2ac274c73d61..42dac766c907 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -7420,7 +7420,7 @@ static int ixgbe_change_mtu(struct net_device *netdev, int new_mtu) /* must set new MTU before calling down or up */ WRITE_ONCE(netdev->mtu, new_mtu); - if (netif_running(netdev)) + if (ixgbe_netif_running(netdev)) ixgbe_reinit_locked(adapter); return 0; @@ -9917,6 +9917,7 @@ int ixgbe_setup_tc(struct net_device *dev, u8 tc) { struct ixgbe_adapter *adapter = ixgbe_from_netdev(dev); struct ixgbe_hw *hw = &adapter->hw; + bool running = ixgbe_netif_running(dev); /* Hardware supports up to 8 traffic classes */ if (tc > adapter->dcb_cfg.num_tcs.pg_tcs) @@ -9929,7 +9930,10 @@ int ixgbe_setup_tc(struct net_device *dev, u8 tc) * match packet buffer alignment. Unfortunately, the * hardware is not flexible enough to do this dynamically. */ - if (netif_running(dev)) + if (!netif_device_present(dev)) + return -ENETDOWN; + + if (running) ixgbe_close(dev); else ixgbe_reset(adapter); @@ -9942,7 +9946,7 @@ int ixgbe_setup_tc(struct net_device *dev, u8 tc) e_warn(probe, "DCB is not supported with XDP\n"); ixgbe_init_interrupt_scheme(adapter); - if (netif_running(dev)) + if (running) ixgbe_open(dev); return -EINVAL; } @@ -9977,7 +9981,7 @@ int ixgbe_setup_tc(struct net_device *dev, u8 tc) ixgbe_defrag_macvlan_pools(dev); - if (netif_running(dev)) + if (running) return ixgbe_open(dev); return 0; @@ -10503,9 +10507,9 @@ void ixgbe_do_reset(struct net_device *netdev) { struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev); - if (netif_running(netdev)) + if (ixgbe_netif_running(netdev)) ixgbe_reinit_locked(adapter); - else + else if (netif_device_present(netdev)) ixgbe_reset(adapter); } @@ -10837,7 +10841,7 @@ static void *ixgbe_fwd_add(struct net_device *pdev, struct net_device *vdev) accel->pool = pool; accel->netdev = vdev; - if (!netif_running(pdev)) + if (!ixgbe_netif_running(pdev)) return accel; err = ixgbe_fwd_ring_up(adapter, accel); @@ -10968,8 +10972,10 @@ static int ixgbe_xdp_setup(struct net_device *dev, struct bpf_prog *prog) synchronize_rcu(); err = ixgbe_setup_tc(dev, adapter->hw_tcs); - if (err) + if (err) { + xchg(&adapter->xdp_prog, old_prog); return -EINVAL; + } if (!prog) xdp_features_clear_redirect_target(dev); } else { diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c index 89f96c463f02..02820982b202 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c @@ -39,7 +39,7 @@ static int ixgbe_xsk_pool_enable(struct ixgbe_adapter *adapter, if (err) return err; - if_running = netif_running(adapter->netdev) && + if_running = ixgbe_netif_running(adapter->netdev) && ixgbe_enabled_xdp_adapter(adapter); if (if_running) @@ -71,7 +71,7 @@ static int ixgbe_xsk_pool_disable(struct ixgbe_adapter *adapter, u16 qid) if (!pool) return -EINVAL; - if_running = netif_running(adapter->netdev) && + if_running = ixgbe_netif_running(adapter->netdev) && ixgbe_enabled_xdp_adapter(adapter); if (if_running) -- 2.53.0
