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Date: Tue, 16 Jan 2018 12:20:26 -0500
From: Alexander Aring <aring@...atatu.com>
To: jhs@...atatu.com
Cc: xiyou.wangcong@...il.com, jiri@...nulli.us, davem@...emloft.net,
netdev@...r.kernel.org, kernel@...atatu.com,
Alexander Aring <aring@...atatu.com>,
David Ahern <dsahern@...il.com>
Subject: [PATCH net-next 7/8] net: sched: cls: add extack support for tc_setup_cb_call
This patch adds extack handling for the tc_setup_cb_call function which
is common used by TC classifier implementations.
Cc: David Ahern <dsahern@...il.com>
Signed-off-by: Alexander Aring <aring@...atatu.com>
---
include/net/pkt_cls.h | 3 ++-
net/sched/cls_api.c | 11 ++++++++---
net/sched/cls_bpf.c | 19 +++++++++++--------
net/sched/cls_flower.c | 11 ++++++-----
net/sched/cls_matchall.c | 11 +++++++----
net/sched/cls_u32.c | 20 +++++++++++---------
6 files changed, 45 insertions(+), 30 deletions(-)
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index 03f62be4e57e..991f5011510b 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -577,7 +577,8 @@ tcf_match_indev(struct sk_buff *skb, int ifindex)
#endif /* CONFIG_NET_CLS_IND */
int tc_setup_cb_call(struct tcf_block *block, struct tcf_exts *exts,
- enum tc_setup_type type, void *type_data, bool err_stop);
+ enum tc_setup_type type, void *type_data, bool err_stop,
+ struct netlink_ext_ack *extack);
enum tc_block_command {
TC_BLOCK_BIND,
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 6f9fe99ebe2b..c4484a8341cd 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -1264,21 +1264,26 @@ static int tc_exts_setup_cb_egdev_call(struct tcf_exts *exts,
}
int tc_setup_cb_call(struct tcf_block *block, struct tcf_exts *exts,
- enum tc_setup_type type, void *type_data, bool err_stop)
+ enum tc_setup_type type, void *type_data, bool err_stop,
+ struct netlink_ext_ack *extack)
{
int ok_count;
int ret;
ret = tcf_block_cb_call(block, type, type_data, err_stop);
- if (ret < 0)
+ if (ret < 0) {
+ NL_SET_ERR_MSG(extack, "Failed to inialize tcf block");
return ret;
+ }
ok_count = ret;
if (!exts)
return ok_count;
ret = tc_exts_setup_cb_egdev_call(exts, type, type_data, err_stop);
- if (ret < 0)
+ if (ret < 0) {
+ NL_SET_ERR_MSG(extack, "Failed to inialize tcf block extensions");
return ret;
+ }
ok_count += ret;
return ok_count;
diff --git a/net/sched/cls_bpf.c b/net/sched/cls_bpf.c
index 4e30863723d9..79a07ae405f7 100644
--- a/net/sched/cls_bpf.c
+++ b/net/sched/cls_bpf.c
@@ -147,7 +147,8 @@ static bool cls_bpf_is_ebpf(const struct cls_bpf_prog *prog)
}
static int cls_bpf_offload_cmd(struct tcf_proto *tp, struct cls_bpf_prog *prog,
- struct cls_bpf_prog *oldprog)
+ struct cls_bpf_prog *oldprog,
+ struct netlink_ext_ack *extack)
{
struct tcf_block *block = tp->chain->block;
struct tc_cls_bpf_offload cls_bpf = {};
@@ -167,10 +168,11 @@ static int cls_bpf_offload_cmd(struct tcf_proto *tp, struct cls_bpf_prog *prog,
cls_bpf.exts_integrated = obj->exts_integrated;
cls_bpf.gen_flags = obj->gen_flags;
- err = tc_setup_cb_call(block, NULL, TC_SETUP_CLSBPF, &cls_bpf, skip_sw);
+ err = tc_setup_cb_call(block, NULL, TC_SETUP_CLSBPF, &cls_bpf, skip_sw,
+ extack);
if (prog) {
if (err < 0) {
- cls_bpf_offload_cmd(tp, oldprog, prog);
+ cls_bpf_offload_cmd(tp, oldprog, prog, NULL);
return err;
} else if (err > 0) {
prog->gen_flags |= TCA_CLS_FLAGS_IN_HW;
@@ -184,7 +186,8 @@ static int cls_bpf_offload_cmd(struct tcf_proto *tp, struct cls_bpf_prog *prog,
}
static int cls_bpf_offload(struct tcf_proto *tp, struct cls_bpf_prog *prog,
- struct cls_bpf_prog *oldprog)
+ struct cls_bpf_prog *oldprog,
+ struct netlink_ext_ack *extack)
{
if (prog && oldprog && prog->gen_flags != oldprog->gen_flags)
return -EINVAL;
@@ -196,7 +199,7 @@ static int cls_bpf_offload(struct tcf_proto *tp, struct cls_bpf_prog *prog,
if (!prog && !oldprog)
return 0;
- return cls_bpf_offload_cmd(tp, prog, oldprog);
+ return cls_bpf_offload_cmd(tp, prog, oldprog, extack);
}
static void cls_bpf_stop_offload(struct tcf_proto *tp,
@@ -204,7 +207,7 @@ static void cls_bpf_stop_offload(struct tcf_proto *tp,
{
int err;
- err = cls_bpf_offload_cmd(tp, NULL, prog);
+ err = cls_bpf_offload_cmd(tp, NULL, prog, NULL);
if (err)
pr_err("Stopping hardware offload failed: %d\n", err);
}
@@ -223,7 +226,7 @@ static void cls_bpf_offload_update_stats(struct tcf_proto *tp,
cls_bpf.exts_integrated = prog->exts_integrated;
cls_bpf.gen_flags = prog->gen_flags;
- tc_setup_cb_call(block, NULL, TC_SETUP_CLSBPF, &cls_bpf, false);
+ tc_setup_cb_call(block, NULL, TC_SETUP_CLSBPF, &cls_bpf, false, NULL);
}
static int cls_bpf_init(struct tcf_proto *tp)
@@ -504,7 +507,7 @@ static int cls_bpf_change(struct net *net, struct sk_buff *in_skb,
if (ret < 0)
goto errout_idr;
- ret = cls_bpf_offload(tp, prog, oldprog);
+ ret = cls_bpf_offload(tp, prog, oldprog, extack);
if (ret)
goto errout_parms;
diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
index 9eb552257890..a06a1156b07c 100644
--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -228,13 +228,14 @@ static void fl_hw_destroy_filter(struct tcf_proto *tp, struct cls_fl_filter *f)
cls_flower.cookie = (unsigned long) f;
tc_setup_cb_call(block, &f->exts, TC_SETUP_CLSFLOWER,
- &cls_flower, false);
+ &cls_flower, false, NULL);
}
static int fl_hw_replace_filter(struct tcf_proto *tp,
struct flow_dissector *dissector,
struct fl_flow_key *mask,
- struct cls_fl_filter *f)
+ struct cls_fl_filter *f,
+ struct netlink_ext_ack *extack)
{
struct tc_cls_flower_offload cls_flower = {};
struct tcf_block *block = tp->chain->block;
@@ -251,7 +252,7 @@ static int fl_hw_replace_filter(struct tcf_proto *tp,
cls_flower.classid = f->res.classid;
err = tc_setup_cb_call(block, &f->exts, TC_SETUP_CLSFLOWER,
- &cls_flower, skip_sw);
+ &cls_flower, skip_sw, extack);
if (err < 0) {
fl_hw_destroy_filter(tp, f);
return err;
@@ -277,7 +278,7 @@ static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f)
cls_flower.classid = f->res.classid;
tc_setup_cb_call(block, &f->exts, TC_SETUP_CLSFLOWER,
- &cls_flower, false);
+ &cls_flower, false, NULL);
}
static void __fl_delete(struct tcf_proto *tp, struct cls_fl_filter *f)
@@ -942,7 +943,7 @@ static int fl_change(struct net *net, struct sk_buff *in_skb,
err = fl_hw_replace_filter(tp,
&head->dissector,
&mask.key,
- fnew);
+ fnew, extack);
if (err)
goto errout_idr;
}
diff --git a/net/sched/cls_matchall.c b/net/sched/cls_matchall.c
index 375b6252f29b..2b3e407cc2c7 100644
--- a/net/sched/cls_matchall.c
+++ b/net/sched/cls_matchall.c
@@ -80,12 +80,14 @@ static void mall_destroy_hw_filter(struct tcf_proto *tp,
cls_mall.command = TC_CLSMATCHALL_DESTROY;
cls_mall.cookie = cookie;
- tc_setup_cb_call(block, NULL, TC_SETUP_CLSMATCHALL, &cls_mall, false);
+ tc_setup_cb_call(block, NULL, TC_SETUP_CLSMATCHALL, &cls_mall, false,
+ NULL);
}
static int mall_replace_hw_filter(struct tcf_proto *tp,
struct cls_mall_head *head,
- unsigned long cookie)
+ unsigned long cookie,
+ struct netlink_ext_ack *extack)
{
struct tc_cls_matchall_offload cls_mall = {};
struct tcf_block *block = tp->chain->block;
@@ -98,7 +100,7 @@ static int mall_replace_hw_filter(struct tcf_proto *tp,
cls_mall.cookie = cookie;
err = tc_setup_cb_call(block, NULL, TC_SETUP_CLSMATCHALL,
- &cls_mall, skip_sw);
+ &cls_mall, skip_sw, extack);
if (err < 0) {
mall_destroy_hw_filter(tp, head, cookie);
return err;
@@ -204,7 +206,8 @@ static int mall_change(struct net *net, struct sk_buff *in_skb,
goto err_set_parms;
if (!tc_skip_hw(new->flags)) {
- err = mall_replace_hw_filter(tp, new, (unsigned long)new);
+ err = mall_replace_hw_filter(tp, new, (unsigned long)new,
+ extack);
if (err)
goto err_replace_hw_filter;
}
diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index 78d0a320e7fa..03dc08ab3cf1 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -497,11 +497,11 @@ static void u32_clear_hw_hnode(struct tcf_proto *tp, struct tc_u_hnode *h)
cls_u32.hnode.handle = h->handle;
cls_u32.hnode.prio = h->prio;
- tc_setup_cb_call(block, NULL, TC_SETUP_CLSU32, &cls_u32, false);
+ tc_setup_cb_call(block, NULL, TC_SETUP_CLSU32, &cls_u32, false, NULL);
}
static int u32_replace_hw_hnode(struct tcf_proto *tp, struct tc_u_hnode *h,
- u32 flags)
+ u32 flags, struct netlink_ext_ack *extack)
{
struct tcf_block *block = tp->chain->block;
struct tc_cls_u32_offload cls_u32 = {};
@@ -515,7 +515,8 @@ static int u32_replace_hw_hnode(struct tcf_proto *tp, struct tc_u_hnode *h,
cls_u32.hnode.handle = h->handle;
cls_u32.hnode.prio = h->prio;
- err = tc_setup_cb_call(block, NULL, TC_SETUP_CLSU32, &cls_u32, skip_sw);
+ err = tc_setup_cb_call(block, NULL, TC_SETUP_CLSU32, &cls_u32, skip_sw,
+ extack);
if (err < 0) {
u32_clear_hw_hnode(tp, h);
return err;
@@ -538,11 +539,11 @@ static void u32_remove_hw_knode(struct tcf_proto *tp, u32 handle)
cls_u32.command = TC_CLSU32_DELETE_KNODE;
cls_u32.knode.handle = handle;
- tc_setup_cb_call(block, NULL, TC_SETUP_CLSU32, &cls_u32, false);
+ tc_setup_cb_call(block, NULL, TC_SETUP_CLSU32, &cls_u32, false, NULL);
}
static int u32_replace_hw_knode(struct tcf_proto *tp, struct tc_u_knode *n,
- u32 flags)
+ u32 flags, struct netlink_ext_ack *extack)
{
struct tcf_block *block = tp->chain->block;
struct tc_cls_u32_offload cls_u32 = {};
@@ -565,7 +566,8 @@ static int u32_replace_hw_knode(struct tcf_proto *tp, struct tc_u_knode *n,
if (n->ht_down)
cls_u32.knode.link_handle = n->ht_down->handle;
- err = tc_setup_cb_call(block, NULL, TC_SETUP_CLSU32, &cls_u32, skip_sw);
+ err = tc_setup_cb_call(block, NULL, TC_SETUP_CLSU32, &cls_u32, skip_sw,
+ extack);
if (err < 0) {
u32_remove_hw_knode(tp, n->handle);
return err;
@@ -945,7 +947,7 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
return err;
}
- err = u32_replace_hw_knode(tp, new, flags);
+ err = u32_replace_hw_knode(tp, new, flags, extack);
if (err) {
u32_destroy_key(tp, new, false);
return err;
@@ -992,7 +994,7 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
ht->prio = tp->prio;
idr_init(&ht->handle_idr);
- err = u32_replace_hw_hnode(tp, ht, flags);
+ err = u32_replace_hw_hnode(tp, ht, flags, extack);
if (err) {
idr_remove_ext(&tp_c->handle_idr, handle);
kfree(ht);
@@ -1091,7 +1093,7 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
struct tc_u_knode __rcu **ins;
struct tc_u_knode *pins;
- err = u32_replace_hw_knode(tp, n, flags);
+ err = u32_replace_hw_knode(tp, n, flags, extack);
if (err)
goto errhw;
--
2.11.0
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