Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=aeba84a9251968a51fc6faae846518aac4e77565
Commit: aeba84a9251968a51fc6faae846518aac4e77565
Parent: 46f1b3d7aff99ef4c1e729e023b9c8ee51de5973
Author: Sean Hefty <[EMAIL PROTECTED]>
AuthorDate: Thu Apr 5 11:49:21 2007 -0700
Committer: Roland Dreier <[EMAIL PROTECTED]>
CommitDate: Tue Apr 24 16:31:12 2007 -0700
IB/umad: Implement GRH handling for sent/received MADs
We need to set the SGID index for routed MADs and pass received
GRH information to userspace when a MAD is received.
Signed-off-by: Sean Hefty <[EMAIL PROTECTED]>
---
drivers/infiniband/core/user_mad.c | 18 ++++++++++++------
1 files changed, 12 insertions(+), 6 deletions(-)
diff --git a/drivers/infiniband/core/user_mad.c
b/drivers/infiniband/core/user_mad.c
index 2ce3eea..8199b83 100644
--- a/drivers/infiniband/core/user_mad.c
+++ b/drivers/infiniband/core/user_mad.c
@@ -231,12 +231,17 @@ static void recv_handler(struct ib_mad_agent *agent,
packet->mad.hdr.path_bits = mad_recv_wc->wc->dlid_path_bits;
packet->mad.hdr.grh_present = !!(mad_recv_wc->wc->wc_flags & IB_WC_GRH);
if (packet->mad.hdr.grh_present) {
- /* XXX parse GRH */
- packet->mad.hdr.gid_index = 0;
- packet->mad.hdr.hop_limit = 0;
- packet->mad.hdr.traffic_class = 0;
- memset(packet->mad.hdr.gid, 0, 16);
- packet->mad.hdr.flow_label = 0;
+ struct ib_ah_attr ah_attr;
+
+ ib_init_ah_from_wc(agent->device, agent->port_num,
+ mad_recv_wc->wc, mad_recv_wc->recv_buf.grh,
+ &ah_attr);
+
+ packet->mad.hdr.gid_index = ah_attr.grh.sgid_index;
+ packet->mad.hdr.hop_limit = ah_attr.grh.hop_limit;
+ packet->mad.hdr.traffic_class = ah_attr.grh.traffic_class;
+ memcpy(packet->mad.hdr.gid, &ah_attr.grh.dgid, 16);
+ packet->mad.hdr.flow_label =
cpu_to_be32(ah_attr.grh.flow_label);
}
if (queue_packet(file, agent, packet))
@@ -473,6 +478,7 @@ static ssize_t ib_umad_write(struct file *filp, const char
__user *buf,
if (packet->mad.hdr.grh_present) {
ah_attr.ah_flags = IB_AH_GRH;
memcpy(ah_attr.grh.dgid.raw, packet->mad.hdr.gid, 16);
+ ah_attr.grh.sgid_index = packet->mad.hdr.gid_index;
ah_attr.grh.flow_label =
be32_to_cpu(packet->mad.hdr.flow_label);
ah_attr.grh.hop_limit = packet->mad.hdr.hop_limit;
ah_attr.grh.traffic_class = packet->mad.hdr.traffic_class;
-
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