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path: root/drivers/infiniband/hw/mthca/mthca_mad.c
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Diffstat (limited to 'drivers/infiniband/hw/mthca/mthca_mad.c')
-rw-r--r--drivers/infiniband/hw/mthca/mthca_mad.c25
1 files changed, 19 insertions, 6 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_mad.c b/drivers/infiniband/hw/mthca/mthca_mad.c
index 640449582aba..5648659ff0b0 100644
--- a/drivers/infiniband/hw/mthca/mthca_mad.c
+++ b/drivers/infiniband/hw/mthca/mthca_mad.c
@@ -104,7 +104,8 @@ static void update_sm_ah(struct mthca_dev *dev,
*/
static void smp_snoop(struct ib_device *ibdev,
u8 port_num,
- struct ib_mad *mad)
+ struct ib_mad *mad,
+ u16 prev_lid)
{
struct ib_event event;
@@ -114,6 +115,7 @@ static void smp_snoop(struct ib_device *ibdev,
if (mad->mad_hdr.attr_id == IB_SMP_ATTR_PORT_INFO) {
struct ib_port_info *pinfo =
(struct ib_port_info *) ((struct ib_smp *) mad)->data;
+ u16 lid = be16_to_cpu(pinfo->lid);
mthca_update_rate(to_mdev(ibdev), port_num);
update_sm_ah(to_mdev(ibdev), port_num,
@@ -123,12 +125,15 @@ static void smp_snoop(struct ib_device *ibdev,
event.device = ibdev;
event.element.port_num = port_num;
- if (pinfo->clientrereg_resv_subnetto & 0x80)
+ if (pinfo->clientrereg_resv_subnetto & 0x80) {
event.event = IB_EVENT_CLIENT_REREGISTER;
- else
- event.event = IB_EVENT_LID_CHANGE;
+ ib_dispatch_event(&event);
+ }
- ib_dispatch_event(&event);
+ if (prev_lid != lid) {
+ event.event = IB_EVENT_LID_CHANGE;
+ ib_dispatch_event(&event);
+ }
}
if (mad->mad_hdr.attr_id == IB_SMP_ATTR_PKEY_TABLE) {
@@ -196,6 +201,8 @@ int mthca_process_mad(struct ib_device *ibdev,
int err;
u8 status;
u16 slid = in_wc ? in_wc->slid : be16_to_cpu(IB_LID_PERMISSIVE);
+ u16 prev_lid = 0;
+ struct ib_port_attr pattr;
/* Forward locally generated traps to the SM */
if (in_mad->mad_hdr.method == IB_MGMT_METHOD_TRAP &&
@@ -233,6 +240,12 @@ int mthca_process_mad(struct ib_device *ibdev,
return IB_MAD_RESULT_SUCCESS;
} else
return IB_MAD_RESULT_SUCCESS;
+ if ((in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED ||
+ in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) &&
+ in_mad->mad_hdr.method == IB_MGMT_METHOD_SET &&
+ in_mad->mad_hdr.attr_id == IB_SMP_ATTR_PORT_INFO &&
+ !ib_query_port(ibdev, port_num, &pattr))
+ prev_lid = pattr.lid;
err = mthca_MAD_IFC(to_mdev(ibdev),
mad_flags & IB_MAD_IGNORE_MKEY,
@@ -252,7 +265,7 @@ int mthca_process_mad(struct ib_device *ibdev,
}
if (!out_mad->mad_hdr.status) {
- smp_snoop(ibdev, port_num, in_mad);
+ smp_snoop(ibdev, port_num, in_mad, prev_lid);
node_desc_override(ibdev, out_mad);
}