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authorYosef Etigin <yosefe@voltaire.com>2007-05-19 08:51:54 -0700
committerRoland Dreier <rolandd@cisco.com>2007-05-19 08:51:54 -0700
commit26bbf13ce1ca21ec69175bcc4b995cb8ffdf8593 (patch)
tree4bcad0db9ad75fe820c4f7f31155d984a03d2a7a /drivers/infiniband/ulp/ipoib/ipoib_verbs.c
parent1af4c435f3ab9cdf72ce86c35a455c8bef1d6536 (diff)
downloadlinux-26bbf13ce1ca21ec69175bcc4b995cb8ffdf8593.tar.bz2
IPoIB: Handle P_Key table reordering
SM reconfiguration or failover possibly causes a shuffling of the values in the P_Key table. Right now, IPoIB only queries for the P_Key index once when it creates the device QP, and hence there are problems if the index of a P_Key value changes. Fix this by using the PKEY_CHANGE event to trigger a recheck of the P_Key index. Signed-off-by: Yosef Etigin <yosefe@voltaire.com> Acked-by: Michael S. Tsirkin <mst@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/ulp/ipoib/ipoib_verbs.c')
-rw-r--r--drivers/infiniband/ulp/ipoib/ipoib_verbs.c38
1 files changed, 15 insertions, 23 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_verbs.c b/drivers/infiniband/ulp/ipoib/ipoib_verbs.c
index 5c3c6a43a52b..791252621b26 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_verbs.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_verbs.c
@@ -33,8 +33,6 @@
* $Id: ipoib_verbs.c 1349 2004-12-16 21:09:43Z roland $
*/
-#include <rdma/ib_cache.h>
-
#include "ipoib.h"
int ipoib_mcast_attach(struct net_device *dev, u16 mlid, union ib_gid *mgid)
@@ -49,7 +47,7 @@ int ipoib_mcast_attach(struct net_device *dev, u16 mlid, union ib_gid *mgid)
if (!qp_attr)
goto out;
- if (ib_find_cached_pkey(priv->ca, priv->port, priv->pkey, &pkey_index)) {
+ if (ib_find_pkey(priv->ca, priv->port, priv->pkey, &pkey_index)) {
clear_bit(IPOIB_PKEY_ASSIGNED, &priv->flags);
ret = -ENXIO;
goto out;
@@ -94,26 +92,16 @@ int ipoib_init_qp(struct net_device *dev)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
int ret;
- u16 pkey_index;
struct ib_qp_attr qp_attr;
int attr_mask;
- /*
- * Search through the port P_Key table for the requested pkey value.
- * The port has to be assigned to the respective IB partition in
- * advance.
- */
- ret = ib_find_cached_pkey(priv->ca, priv->port, priv->pkey, &pkey_index);
- if (ret) {
- clear_bit(IPOIB_PKEY_ASSIGNED, &priv->flags);
- return ret;
- }
- set_bit(IPOIB_PKEY_ASSIGNED, &priv->flags);
+ if (!test_bit(IPOIB_PKEY_ASSIGNED, &priv->flags))
+ return -1;
qp_attr.qp_state = IB_QPS_INIT;
qp_attr.qkey = 0;
qp_attr.port_num = priv->port;
- qp_attr.pkey_index = pkey_index;
+ qp_attr.pkey_index = priv->pkey_index;
attr_mask =
IB_QP_QKEY |
IB_QP_PORT |
@@ -259,14 +247,18 @@ void ipoib_event(struct ib_event_handler *handler,
struct ipoib_dev_priv *priv =
container_of(handler, struct ipoib_dev_priv, event_handler);
- if ((record->event == IB_EVENT_PORT_ERR ||
- record->event == IB_EVENT_PKEY_CHANGE ||
- record->event == IB_EVENT_PORT_ACTIVE ||
- record->event == IB_EVENT_LID_CHANGE ||
- record->event == IB_EVENT_SM_CHANGE ||
- record->event == IB_EVENT_CLIENT_REREGISTER) &&
- record->element.port_num == priv->port) {
+ if (record->element.port_num != priv->port)
+ return;
+
+ if (record->event == IB_EVENT_PORT_ERR ||
+ record->event == IB_EVENT_PORT_ACTIVE ||
+ record->event == IB_EVENT_LID_CHANGE ||
+ record->event == IB_EVENT_SM_CHANGE ||
+ record->event == IB_EVENT_CLIENT_REREGISTER) {
ipoib_dbg(priv, "Port state change event\n");
queue_work(ipoib_workqueue, &priv->flush_task);
+ } else if (record->event == IB_EVENT_PKEY_CHANGE) {
+ ipoib_dbg(priv, "P_Key change event on port:%d\n", priv->port);
+ queue_work(ipoib_workqueue, &priv->pkey_event_task);
}
}