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authorLinus Torvalds <torvalds@g5.osdl.org>2006-02-14 13:49:37 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-02-14 13:49:37 -0800
commitf78cf0dc7b7b13d0550d1e02cf221b65969ff926 (patch)
treed2bb41e6edb5f70ccb09ed50f5cfb35eda22f844 /drivers/infiniband/core
parent4cbf8767902c578481ff3df366c77d24fe68fd26 (diff)
parent7d2babc4874825027848db04d11784070da4456d (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
Diffstat (limited to 'drivers/infiniband/core')
-rw-r--r--drivers/infiniband/core/mad.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c
index d393b504bf2..c82f47a66e4 100644
--- a/drivers/infiniband/core/mad.c
+++ b/drivers/infiniband/core/mad.c
@@ -665,7 +665,15 @@ static int handle_outgoing_dr_smp(struct ib_mad_agent_private *mad_agent_priv,
struct ib_wc mad_wc;
struct ib_send_wr *send_wr = &mad_send_wr->send_wr;
- if (!smi_handle_dr_smp_send(smp, device->node_type, port_num)) {
+ /*
+ * Directed route handling starts if the initial LID routed part of
+ * a request or the ending LID routed part of a response is empty.
+ * If we are at the start of the LID routed part, don't update the
+ * hop_ptr or hop_cnt. See section 14.2.2, Vol 1 IB spec.
+ */
+ if ((ib_get_smp_direction(smp) ? smp->dr_dlid : smp->dr_slid) ==
+ IB_LID_PERMISSIVE &&
+ !smi_handle_dr_smp_send(smp, device->node_type, port_num)) {
ret = -EINVAL;
printk(KERN_ERR PFX "Invalid directed route\n");
goto out;