diff options
| author |   Michael S. Tsirkin <mst@dev.mellanox.co.il> | 2007-05-24 18:32:46 +0300 |
|---|---|---|
| committer |   Roland Dreier <rolandd@cisco.com> | 2007-05-24 14:02:40 -0700 |
| commit | 2dfbfc37121d307e1f1d24c2979382cb17b19347 (patch) | |
| tree | b301f2f55738bb6ec9621fbe81161d93701c6bcf /drivers/infiniband/ulp/ipoib | |
| parent | IPoIB/cm: Fix timeout check in ipoib_cm_dev_stop() (diff) | |
| download | linux-dev-2dfbfc37121d307e1f1d24c2979382cb17b19347.tar.xz linux-dev-2dfbfc37121d307e1f1d24c2979382cb17b19347.zip | |
IPoIB/cm: Drain cq in ipoib_cm_dev_stop()
Since NAPI polling is disabled while ipoib_cm_dev_stop() is running,
ipoib_cm_dev_stop() must poll the CQ itself in order to see the
packets draining.
Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/ulp/ipoib')
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib.h | 1 | ||||
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_cm.c | 1 | ||||
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_ib.c | 31 |
3 files changed, 21 insertions, 12 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h index a0b3782c7625..158759e28a5b 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib.h +++ b/drivers/infiniband/ulp/ipoib/ipoib.h @@ -429,6 +429,7 @@ int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey); void ipoib_pkey_poll(struct work_struct *work); int ipoib_pkey_dev_delay_open(struct net_device *dev); +void ipoib_drain_cq(struct net_device *dev); #ifdef CONFIG_INFINIBAND_IPOIB_CM diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c index e8fcd628be73..f133b56fd978 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c @@ -726,6 +726,7 @@ void ipoib_cm_dev_stop(struct net_device *dev) } spin_unlock_irq(&priv->lock); msleep(1); + ipoib_drain_cq(dev); spin_lock_irq(&priv->lock); } diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c index c1aad06eb4e9..8404f05b2b6e 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c @@ -550,13 +550,30 @@ static int recvs_pending(struct net_device *dev) return pending; } +void ipoib_drain_cq(struct net_device *dev) +{ + struct ipoib_dev_priv *priv = netdev_priv(dev); + int i, n; + do { + n = ib_poll_cq(priv->cq, IPOIB_NUM_WC, priv->ibwc); + for (i = 0; i < n; ++i) { + if (priv->ibwc[i].wr_id & IPOIB_CM_OP_SRQ) + ipoib_cm_handle_rx_wc(dev, priv->ibwc + i); + else if (priv->ibwc[i].wr_id & IPOIB_OP_RECV) + ipoib_ib_handle_rx_wc(dev, priv->ibwc + i); + else + ipoib_ib_handle_tx_wc(dev, priv->ibwc + i); + } + } while (n == IPOIB_NUM_WC); +} + 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; unsigned long begin; struct ipoib_tx_buf *tx_req; - int i, n; + int i; clear_bit(IPOIB_FLAG_INITIALIZED, &priv->flags); netif_poll_disable(dev); @@ -611,17 +628,7 @@ int ipoib_ib_dev_stop(struct net_device *dev, int flush) goto timeout; } - do { - n = ib_poll_cq(priv->cq, IPOIB_NUM_WC, priv->ibwc); - for (i = 0; i < n; ++i) { - if (priv->ibwc[i].wr_id & IPOIB_CM_OP_SRQ) - ipoib_cm_handle_rx_wc(dev, priv->ibwc + i); - else if (priv->ibwc[i].wr_id & IPOIB_OP_RECV) - ipoib_ib_handle_rx_wc(dev, priv->ibwc + i); - else - ipoib_ib_handle_tx_wc(dev, priv->ibwc + i); - } - } while (n == IPOIB_NUM_WC); + ipoib_drain_cq(dev); msleep(1); } |