diff options
| author |   Ralph Campbell <ralphc@pathscale.com> | 2006-02-03 14:28:48 -0800 |
|---|---|---|
| committer |   Roland Dreier <rolandd@cisco.com> | 2006-02-03 14:28:48 -0800 |
| commit | 8cf3f04f45694db0699f608c0e3fb550c607cc88 (patch) | |
| tree | aab58ffbfc1650e66251b46eb1e4bef24ec82ec4 /drivers/infiniband/core/mad.c | |
| parent | [PATCH] kernel-doc: clean up the script (whitespace) (diff) | |
| download | linux-dev-8cf3f04f45694db0699f608c0e3fb550c607cc88.tar.xz linux-dev-8cf3f04f45694db0699f608c0e3fb550c607cc88.zip | |
IB/mad: Handle DR SMPs with a LID routed part
Fix handling of directed route SMPs with a beginning or ending LID
routed part.
Signed-off-by: Ralph Campbell <ralphc@pathscale.com>
Signed-off-by: Hal Rosenstock <halr@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/core/mad.c')
| -rw-r--r-- | drivers/infiniband/core/mad.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c index d393b504bf26..c82f47a66e48 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; |