diff options
| author |   Jiri Pirko <jiri@mellanox.com> | 2018-07-23 09:23:11 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-07-23 20:44:12 -0700 |
| commit | 34738452739069947e528123810533f28dd8332b (patch) | |
| tree | 88487b361927f0dfa69ebce3d952accdc7c9879f | |
| parent | net: sched: cls_flower: implement chain templates (diff) | |
| download | linux-dev-34738452739069947e528123810533f28dd8332b.tar.xz linux-dev-34738452739069947e528123810533f28dd8332b.zip | |
net: sched: cls_flower: propagate chain teplate creation and destruction to drivers
Introduce a couple of flower offload commands in order to propagate
template creation/destruction events down to device drivers.
Drivers may use this information to prepare HW in an optimal way
for future filter insertions.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/net/pkt_cls.h | 2 | ||||
| -rw-r--r-- | net/sched/cls_flower.c | 39 |
2 files changed, 41 insertions, 0 deletions
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h index 4f405ca8346f..a3101582f642 100644 --- a/include/net/pkt_cls.h +++ b/include/net/pkt_cls.h @@ -721,6 +721,8 @@ enum tc_fl_command { TC_CLSFLOWER_REPLACE, TC_CLSFLOWER_DESTROY, TC_CLSFLOWER_STATS, + TC_CLSFLOWER_TMPLT_CREATE, + TC_CLSFLOWER_TMPLT_DESTROY, }; struct tc_cls_flower_offload { diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c index f0c80758a594..6ccf60364297 100644 --- a/net/sched/cls_flower.c +++ b/net/sched/cls_flower.c @@ -1194,6 +1194,42 @@ static int fl_reoffload(struct tcf_proto *tp, bool add, tc_setup_cb_t *cb, return 0; } +static void fl_hw_create_tmplt(struct tcf_chain *chain, + struct fl_flow_tmplt *tmplt) +{ + struct tc_cls_flower_offload cls_flower = {}; + struct tcf_block *block = chain->block; + struct tcf_exts dummy_exts = { 0, }; + + cls_flower.common.chain_index = chain->index; + cls_flower.command = TC_CLSFLOWER_TMPLT_CREATE; + cls_flower.cookie = (unsigned long) tmplt; + cls_flower.dissector = &tmplt->dissector; + cls_flower.mask = &tmplt->mask; + cls_flower.key = &tmplt->dummy_key; + cls_flower.exts = &dummy_exts; + + /* We don't care if driver (any of them) fails to handle this + * call. It serves just as a hint for it. + */ + tc_setup_cb_call(block, NULL, TC_SETUP_CLSFLOWER, + &cls_flower, false); +} + +static void fl_hw_destroy_tmplt(struct tcf_chain *chain, + struct fl_flow_tmplt *tmplt) +{ + struct tc_cls_flower_offload cls_flower = {}; + struct tcf_block *block = chain->block; + + cls_flower.common.chain_index = chain->index; + cls_flower.command = TC_CLSFLOWER_TMPLT_DESTROY; + cls_flower.cookie = (unsigned long) tmplt; + + tc_setup_cb_call(block, NULL, TC_SETUP_CLSFLOWER, + &cls_flower, false); +} + static void *fl_tmplt_create(struct net *net, struct tcf_chain *chain, struct nlattr **tca, struct netlink_ext_ack *extack) @@ -1224,6 +1260,8 @@ static void *fl_tmplt_create(struct net *net, struct tcf_chain *chain, fl_init_dissector(&tmplt->dissector, &tmplt->mask); + fl_hw_create_tmplt(chain, tmplt); + return tmplt; errout_tmplt: @@ -1237,6 +1275,7 @@ static void fl_tmplt_destroy(void *tmplt_priv) { struct fl_flow_tmplt *tmplt = tmplt_priv; + fl_hw_destroy_tmplt(tmplt->chain, tmplt); kfree(tmplt); } |