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authorNogah Frankel <nogahf@mellanox.com>2018-01-14 14:33:15 +0300
committerDavid S. Miller <davem@davemloft.net>2018-01-14 20:21:11 +0300
commit7fdb61b44c0c95d00f6c856d9fb61a9f647bc85f (patch)
tree1ba0edfd18a405ae1e3c3be4f58fc54fc93cbe8f /include/net/pkt_cls.h
parent48276a296a27a85c4c220d0a313c06711ea0cfcf (diff)
downloadlinux-7fdb61b44c0c95d00f6c856d9fb61a9f647bc85f.tar.xz
net: sch: prio: Add offload ability to PRIO qdisc
Add the ability to offload PRIO qdisc by using ndo_setup_tc. There are three commands for PRIO offloading: * TC_PRIO_REPLACE: handles set and tune * TC_PRIO_DESTROY: handles qdisc destroy * TC_PRIO_STATS: updates the qdiscs counters (given as reference) Like RED qdisc, the indication of whether PRIO is being offloaded is being set and updated as part of the dump function. It is so because the driver could decide to offload or not based on the qdisc parent, which could change without notifying the qdisc. Signed-off-by: Nogah Frankel <nogahf@mellanox.com> Reviewed-by: Yuval Mintz <yuvalm@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/pkt_cls.h')
-rw-r--r--include/net/pkt_cls.h25
1 files changed, 25 insertions, 0 deletions
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index 0d1343cba84c..9c341f003091 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -761,4 +761,29 @@ struct tc_red_qopt_offload {
};
};
+enum tc_prio_command {
+ TC_PRIO_REPLACE,
+ TC_PRIO_DESTROY,
+ TC_PRIO_STATS,
+};
+
+struct tc_prio_qopt_offload_params {
+ int bands;
+ u8 priomap[TC_PRIO_MAX + 1];
+ /* In case that a prio qdisc is offloaded and now is changed to a
+ * non-offloadedable config, it needs to update the backlog & qlen
+ * values to negate the HW backlog & qlen values (and only them).
+ */
+ struct gnet_stats_queue *qstats;
+};
+
+struct tc_prio_qopt_offload {
+ enum tc_prio_command command;
+ u32 handle;
+ u32 parent;
+ union {
+ struct tc_prio_qopt_offload_params replace_params;
+ struct tc_qopt_offload_stats stats;
+ };
+};
#endif