diff options
Diffstat (limited to 'drivers/infiniband/ulp/ipoib/ipoib_ib.c')
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_ib.c | 87 |
1 files changed, 69 insertions, 18 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c index 68d72c6f7ffb..c1aad06eb4e9 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c @@ -448,6 +448,13 @@ int ipoib_ib_dev_open(struct net_device *dev) struct ipoib_dev_priv *priv = netdev_priv(dev); int ret; + if (ib_find_pkey(priv->ca, priv->port, priv->pkey, &priv->pkey_index)) { + ipoib_warn(priv, "P_Key 0x%04x not found\n", priv->pkey); + clear_bit(IPOIB_PKEY_ASSIGNED, &priv->flags); + return -1; + } + set_bit(IPOIB_PKEY_ASSIGNED, &priv->flags); + ret = ipoib_init_qp(dev); if (ret) { ipoib_warn(priv, "ipoib_init_qp returned %d\n", ret); @@ -457,14 +464,14 @@ int ipoib_ib_dev_open(struct net_device *dev) ret = ipoib_ib_post_receives(dev); if (ret) { ipoib_warn(priv, "ipoib_ib_post_receives returned %d\n", ret); - ipoib_ib_dev_stop(dev); + ipoib_ib_dev_stop(dev, 1); return -1; } ret = ipoib_cm_dev_open(dev); if (ret) { - ipoib_warn(priv, "ipoib_ib_post_receives returned %d\n", ret); - ipoib_ib_dev_stop(dev); + ipoib_warn(priv, "ipoib_cm_dev_open returned %d\n", ret); + ipoib_ib_dev_stop(dev, 1); return -1; } @@ -516,7 +523,7 @@ int ipoib_ib_dev_down(struct net_device *dev, int flush) if (!test_bit(IPOIB_PKEY_ASSIGNED, &priv->flags)) { mutex_lock(&pkey_mutex); set_bit(IPOIB_PKEY_STOP, &priv->flags); - cancel_delayed_work(&priv->pkey_task); + cancel_delayed_work(&priv->pkey_poll_task); mutex_unlock(&pkey_mutex); if (flush) flush_workqueue(ipoib_workqueue); @@ -543,7 +550,7 @@ static int recvs_pending(struct net_device *dev) return pending; } -int ipoib_ib_dev_stop(struct net_device *dev) +int ipoib_ib_dev_stop(struct net_device *dev, int flush) { struct ipoib_dev_priv *priv = netdev_priv(dev); struct ib_qp_attr qp_attr; @@ -629,7 +636,8 @@ timeout: /* Wait for all AHs to be reaped */ set_bit(IPOIB_STOP_REAPER, &priv->flags); cancel_delayed_work(&priv->ah_reap_task); - flush_workqueue(ipoib_workqueue); + if (flush) + flush_workqueue(ipoib_workqueue); begin = jiffies; @@ -673,13 +681,24 @@ int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port) return 0; } -void ipoib_ib_dev_flush(struct work_struct *work) +static void __ipoib_ib_dev_flush(struct ipoib_dev_priv *priv, int pkey_event) { - struct ipoib_dev_priv *cpriv, *priv = - container_of(work, struct ipoib_dev_priv, flush_task); + struct ipoib_dev_priv *cpriv; struct net_device *dev = priv->dev; + u16 new_index; + + mutex_lock(&priv->vlan_mutex); - if (!test_bit(IPOIB_FLAG_INITIALIZED, &priv->flags) ) { + /* + * Flush any child interfaces too -- they might be up even if + * the parent is down. + */ + list_for_each_entry(cpriv, &priv->child_intfs, list) + __ipoib_ib_dev_flush(cpriv, pkey_event); + + mutex_unlock(&priv->vlan_mutex); + + if (!test_bit(IPOIB_FLAG_INITIALIZED, &priv->flags)) { ipoib_dbg(priv, "Not flushing - IPOIB_FLAG_INITIALIZED not set.\n"); return; } @@ -689,10 +708,32 @@ void ipoib_ib_dev_flush(struct work_struct *work) return; } + if (pkey_event) { + if (ib_find_pkey(priv->ca, priv->port, priv->pkey, &new_index)) { + clear_bit(IPOIB_PKEY_ASSIGNED, &priv->flags); + ipoib_ib_dev_down(dev, 0); + ipoib_pkey_dev_delay_open(dev); + return; + } + set_bit(IPOIB_PKEY_ASSIGNED, &priv->flags); + + /* restart QP only if P_Key index is changed */ + if (new_index == priv->pkey_index) { + ipoib_dbg(priv, "Not flushing - P_Key index not changed.\n"); + return; + } + priv->pkey_index = new_index; + } + ipoib_dbg(priv, "flushing\n"); ipoib_ib_dev_down(dev, 0); + if (pkey_event) { + ipoib_ib_dev_stop(dev, 0); + ipoib_ib_dev_open(dev); + } + /* * The device could have been brought down between the start and when * we get here, don't bring it back up if it's not configured up @@ -701,14 +742,24 @@ void ipoib_ib_dev_flush(struct work_struct *work) ipoib_ib_dev_up(dev); ipoib_mcast_restart_task(&priv->restart_task); } +} - mutex_lock(&priv->vlan_mutex); +void ipoib_ib_dev_flush(struct work_struct *work) +{ + struct ipoib_dev_priv *priv = + container_of(work, struct ipoib_dev_priv, flush_task); - /* Flush any child interfaces too */ - list_for_each_entry(cpriv, &priv->child_intfs, list) - ipoib_ib_dev_flush(&cpriv->flush_task); + ipoib_dbg(priv, "Flushing %s\n", priv->dev->name); + __ipoib_ib_dev_flush(priv, 0); +} - mutex_unlock(&priv->vlan_mutex); +void ipoib_pkey_event(struct work_struct *work) +{ + struct ipoib_dev_priv *priv = + container_of(work, struct ipoib_dev_priv, pkey_event_task); + + ipoib_dbg(priv, "Flushing %s and restarting its QP\n", priv->dev->name); + __ipoib_ib_dev_flush(priv, 1); } void ipoib_ib_dev_cleanup(struct net_device *dev) @@ -736,7 +787,7 @@ void ipoib_ib_dev_cleanup(struct net_device *dev) void ipoib_pkey_poll(struct work_struct *work) { struct ipoib_dev_priv *priv = - container_of(work, struct ipoib_dev_priv, pkey_task.work); + container_of(work, struct ipoib_dev_priv, pkey_poll_task.work); struct net_device *dev = priv->dev; ipoib_pkey_dev_check_presence(dev); @@ -747,7 +798,7 @@ void ipoib_pkey_poll(struct work_struct *work) mutex_lock(&pkey_mutex); if (!test_bit(IPOIB_PKEY_STOP, &priv->flags)) queue_delayed_work(ipoib_workqueue, - &priv->pkey_task, + &priv->pkey_poll_task, HZ); mutex_unlock(&pkey_mutex); } @@ -766,7 +817,7 @@ int ipoib_pkey_dev_delay_open(struct net_device *dev) mutex_lock(&pkey_mutex); clear_bit(IPOIB_PKEY_STOP, &priv->flags); queue_delayed_work(ipoib_workqueue, - &priv->pkey_task, + &priv->pkey_poll_task, HZ); mutex_unlock(&pkey_mutex); return 1; |