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net/sched: use the hardware intermediate representation for matchall

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Extends matchall offload to make use of the hardware intermediate
representation. More specifically, this patch moves the native TC
actions in cls_matchall offload to the newer flow_action
representation. This ultimately allows us to avoid a direct
dependency on native TC actions for matchall.

Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pieter Jansen van Vuuren 2019-05-04 04:46:17 -07:00 committed by David S. Miller
parent a7a7be6087
commit f00cbf1968
2 changed files with 34 additions and 0 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

1
include/net/pkt_cls.h
View file

@ -789,6 +789,7 @@ enum tc_matchall_command {
struct tc_cls_matchall_offload { struct tc_cls_matchall_offload {
struct tc_cls_common_offload common; struct tc_cls_common_offload common;
enum tc_matchall_command command; enum tc_matchall_command command;
struct flow_rule *rule;
struct tcf_exts *exts; struct tcf_exts *exts;
unsigned long cookie; unsigned long cookie;
}; };

33
net/sched/cls_matchall.c
View file

@ -89,12 +89,30 @@ static int mall_replace_hw_filter(struct tcf_proto *tp,
bool skip_sw = tc_skip_sw(head->flags); bool skip_sw = tc_skip_sw(head->flags);
int err; int err;
cls_mall.rule = flow_rule_alloc(tcf_exts_num_actions(&head->exts));
if (!cls_mall.rule)
return -ENOMEM;
tc_cls_common_offload_init(&cls_mall.common, tp, head->flags, extack); tc_cls_common_offload_init(&cls_mall.common, tp, head->flags, extack);
cls_mall.command = TC_CLSMATCHALL_REPLACE; cls_mall.command = TC_CLSMATCHALL_REPLACE;
cls_mall.exts = &head->exts; cls_mall.exts = &head->exts;
cls_mall.cookie = cookie; cls_mall.cookie = cookie;
err = tc_setup_flow_action(&cls_mall.rule->action, &head->exts);
if (err) {
kfree(cls_mall.rule);
mall_destroy_hw_filter(tp, head, cookie, NULL);
if (skip_sw)
NL_SET_ERR_MSG_MOD(extack, "Failed to setup flow action");
else
err = 0;
return err;
}
err = tc_setup_cb_call(block, TC_SETUP_CLSMATCHALL, &cls_mall, skip_sw); err = tc_setup_cb_call(block, TC_SETUP_CLSMATCHALL, &cls_mall, skip_sw);
kfree(cls_mall.rule);
if (err < 0) { if (err < 0) {
mall_destroy_hw_filter(tp, head, cookie, NULL); mall_destroy_hw_filter(tp, head, cookie, NULL);
return err; return err;
@ -272,13 +290,28 @@ static int mall_reoffload(struct tcf_proto *tp, bool add, tc_setup_cb_t *cb,
if (tc_skip_hw(head->flags)) if (tc_skip_hw(head->flags))
return 0; return 0;
cls_mall.rule = flow_rule_alloc(tcf_exts_num_actions(&head->exts));
if (!cls_mall.rule)
return -ENOMEM;
tc_cls_common_offload_init(&cls_mall.common, tp, head->flags, extack); tc_cls_common_offload_init(&cls_mall.common, tp, head->flags, extack);
cls_mall.command = add ? cls_mall.command = add ?
TC_CLSMATCHALL_REPLACE : TC_CLSMATCHALL_DESTROY; TC_CLSMATCHALL_REPLACE : TC_CLSMATCHALL_DESTROY;
cls_mall.exts = &head->exts; cls_mall.exts = &head->exts;
cls_mall.cookie = (unsigned long)head; cls_mall.cookie = (unsigned long)head;
err = tc_setup_flow_action(&cls_mall.rule->action, &head->exts);
if (err) {
kfree(cls_mall.rule);
if (add && tc_skip_sw(head->flags)) {
NL_SET_ERR_MSG_MOD(extack, "Failed to setup flow action");
return err;
}
}
err = cb(TC_SETUP_CLSMATCHALL, &cls_mall, cb_priv); err = cb(TC_SETUP_CLSMATCHALL, &cls_mall, cb_priv);
kfree(cls_mall.rule);
if (err) { if (err) {
if (add && tc_skip_sw(head->flags)) if (add && tc_skip_sw(head->flags))
return err; return err;