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-rw-r--r--include/net/act_api.h3
-rw-r--r--include/net/pkt_cls.h6
-rw-r--r--include/net/tc_act/tc_gact.h15
-rw-r--r--include/net/tc_act/tc_skbedit.h12
-rw-r--r--net/sched/act_api.c4
-rw-r--r--net/sched/act_csum.c3
-rw-r--r--net/sched/act_ct.c3
-rw-r--r--net/sched/act_gact.c13
-rw-r--r--net/sched/act_gate.c3
-rw-r--r--net/sched/act_mirred.c4
-rw-r--r--net/sched/act_mpls.c10
-rw-r--r--net/sched/act_pedit.c4
-rw-r--r--net/sched/act_police.c20
-rw-r--r--net/sched/act_sample.c3
-rw-r--r--net/sched/act_skbedit.c10
-rw-r--r--net/sched/act_tunnel_key.c4
-rw-r--r--net/sched/act_vlan.c4
-rw-r--r--net/sched/cls_api.c22
-rw-r--r--net/sched/cls_flower.c14
-rw-r--r--net/sched/cls_matchall.c19
20 files changed, 128 insertions, 48 deletions
diff --git a/include/net/act_api.h b/include/net/act_api.h
index 3049cb69c025..9cf6870b526e 100644
--- a/include/net/act_api.h
+++ b/include/net/act_api.h
@@ -134,7 +134,8 @@ struct tc_action_ops {
(*get_psample_group)(const struct tc_action *a,
tc_action_priv_destructor *destructor);
int (*offload_act_setup)(struct tc_action *act, void *entry_data,
- u32 *index_inc, bool bind);
+ u32 *index_inc, bool bind,
+ struct netlink_ext_ack *extack);
};
struct tc_action_net {
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index a3b57a93228a..8cf001aed858 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -547,10 +547,12 @@ tcf_match_indev(struct sk_buff *skb, int ifindex)
}
int tc_setup_offload_action(struct flow_action *flow_action,
- const struct tcf_exts *exts);
+ const struct tcf_exts *exts,
+ struct netlink_ext_ack *extack);
void tc_cleanup_offload_action(struct flow_action *flow_action);
int tc_setup_action(struct flow_action *flow_action,
- struct tc_action *actions[]);
+ struct tc_action *actions[],
+ struct netlink_ext_ack *extack);
int tc_setup_cb_call(struct tcf_block *block, enum tc_setup_type type,
void *type_data, bool err_stop, bool rtnl_held);
diff --git a/include/net/tc_act/tc_gact.h b/include/net/tc_act/tc_gact.h
index eb8f01c819e6..832efd40e023 100644
--- a/include/net/tc_act/tc_gact.h
+++ b/include/net/tc_act/tc_gact.h
@@ -59,4 +59,19 @@ static inline u32 tcf_gact_goto_chain_index(const struct tc_action *a)
return READ_ONCE(a->tcfa_action) & TC_ACT_EXT_VAL_MASK;
}
+static inline bool is_tcf_gact_continue(const struct tc_action *a)
+{
+ return __is_tcf_gact_act(a, TC_ACT_UNSPEC, false);
+}
+
+static inline bool is_tcf_gact_reclassify(const struct tc_action *a)
+{
+ return __is_tcf_gact_act(a, TC_ACT_RECLASSIFY, false);
+}
+
+static inline bool is_tcf_gact_pipe(const struct tc_action *a)
+{
+ return __is_tcf_gact_act(a, TC_ACT_PIPE, false);
+}
+
#endif /* __NET_TC_GACT_H */
diff --git a/include/net/tc_act/tc_skbedit.h b/include/net/tc_act/tc_skbedit.h
index 00bfee70609e..cab8229b9bed 100644
--- a/include/net/tc_act/tc_skbedit.h
+++ b/include/net/tc_act/tc_skbedit.h
@@ -94,4 +94,16 @@ static inline u32 tcf_skbedit_priority(const struct tc_action *a)
return priority;
}
+/* Return true iff action is queue_mapping */
+static inline bool is_tcf_skbedit_queue_mapping(const struct tc_action *a)
+{
+ return is_tcf_skbedit_with_flag(a, SKBEDIT_F_QUEUE_MAPPING);
+}
+
+/* Return true iff action is inheritdsfield */
+static inline bool is_tcf_skbedit_inheritdsfield(const struct tc_action *a)
+{
+ return is_tcf_skbedit_with_flag(a, SKBEDIT_F_INHERITDSFIELD);
+}
+
#endif /* __NET_TC_SKBEDIT_H */
diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index 4f51094da9da..da9733da9868 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -195,7 +195,7 @@ static int offload_action_init(struct flow_offload_action *fl_action,
if (act->ops->offload_act_setup) {
spin_lock_bh(&act->tcfa_lock);
err = act->ops->offload_act_setup(act, fl_action, NULL,
- false);
+ false, extack);
spin_unlock_bh(&act->tcfa_lock);
return err;
}
@@ -271,7 +271,7 @@ static int tcf_action_offload_add_ex(struct tc_action *action,
if (err)
goto fl_err;
- err = tc_setup_action(&fl_action->action, actions);
+ err = tc_setup_action(&fl_action->action, actions, extack);
if (err) {
NL_SET_ERR_MSG_MOD(extack,
"Failed to setup tc actions for offload");
diff --git a/net/sched/act_csum.c b/net/sched/act_csum.c
index e0f515b774ca..22847ee009ef 100644
--- a/net/sched/act_csum.c
+++ b/net/sched/act_csum.c
@@ -696,7 +696,8 @@ static size_t tcf_csum_get_fill_size(const struct tc_action *act)
}
static int tcf_csum_offload_act_setup(struct tc_action *act, void *entry_data,
- u32 *index_inc, bool bind)
+ u32 *index_inc, bool bind,
+ struct netlink_ext_ack *extack)
{
if (bind) {
struct flow_action_entry *entry = entry_data;
diff --git a/net/sched/act_ct.c b/net/sched/act_ct.c
index b1f502fce595..8af9d6e5ba61 100644
--- a/net/sched/act_ct.c
+++ b/net/sched/act_ct.c
@@ -1584,7 +1584,8 @@ static void tcf_stats_update(struct tc_action *a, u64 bytes, u64 packets,
}
static int tcf_ct_offload_act_setup(struct tc_action *act, void *entry_data,
- u32 *index_inc, bool bind)
+ u32 *index_inc, bool bind,
+ struct netlink_ext_ack *extack)
{
if (bind) {
struct flow_action_entry *entry = entry_data;
diff --git a/net/sched/act_gact.c b/net/sched/act_gact.c
index bde6a6c01e64..ac29d1065232 100644
--- a/net/sched/act_gact.c
+++ b/net/sched/act_gact.c
@@ -253,7 +253,8 @@ static size_t tcf_gact_get_fill_size(const struct tc_action *act)
}
static int tcf_gact_offload_act_setup(struct tc_action *act, void *entry_data,
- u32 *index_inc, bool bind)
+ u32 *index_inc, bool bind,
+ struct netlink_ext_ack *extack)
{
if (bind) {
struct flow_action_entry *entry = entry_data;
@@ -267,7 +268,17 @@ static int tcf_gact_offload_act_setup(struct tc_action *act, void *entry_data,
} else if (is_tcf_gact_goto_chain(act)) {
entry->id = FLOW_ACTION_GOTO;
entry->chain_index = tcf_gact_goto_chain_index(act);
+ } else if (is_tcf_gact_continue(act)) {
+ NL_SET_ERR_MSG_MOD(extack, "Offload of \"continue\" action is not supported");
+ return -EOPNOTSUPP;
+ } else if (is_tcf_gact_reclassify(act)) {
+ NL_SET_ERR_MSG_MOD(extack, "Offload of \"reclassify\" action is not supported");
+ return -EOPNOTSUPP;
+ } else if (is_tcf_gact_pipe(act)) {
+ NL_SET_ERR_MSG_MOD(extack, "Offload of \"pipe\" action is not supported");
+ return -EOPNOTSUPP;
} else {
+ NL_SET_ERR_MSG_MOD(extack, "Unsupported generic action offload");
return -EOPNOTSUPP;
}
*index_inc = 1;
diff --git a/net/sched/act_gate.c b/net/sched/act_gate.c
index d56e73843a4b..fd5155274733 100644
--- a/net/sched/act_gate.c
+++ b/net/sched/act_gate.c
@@ -619,7 +619,8 @@ static int tcf_gate_get_entries(struct flow_action_entry *entry,
}
static int tcf_gate_offload_act_setup(struct tc_action *act, void *entry_data,
- u32 *index_inc, bool bind)
+ u32 *index_inc, bool bind,
+ struct netlink_ext_ack *extack)
{
int err;
diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c
index 39acd1d18609..ebb92fb072ab 100644
--- a/net/sched/act_mirred.c
+++ b/net/sched/act_mirred.c
@@ -460,7 +460,8 @@ static void tcf_offload_mirred_get_dev(struct flow_action_entry *entry,
}
static int tcf_mirred_offload_act_setup(struct tc_action *act, void *entry_data,
- u32 *index_inc, bool bind)
+ u32 *index_inc, bool bind,
+ struct netlink_ext_ack *extack)
{
if (bind) {
struct flow_action_entry *entry = entry_data;
@@ -478,6 +479,7 @@ static int tcf_mirred_offload_act_setup(struct tc_action *act, void *entry_data,
entry->id = FLOW_ACTION_MIRRED_INGRESS;
tcf_offload_mirred_get_dev(entry, act);
} else {
+ NL_SET_ERR_MSG_MOD(extack, "Unsupported mirred offload");
return -EOPNOTSUPP;
}
*index_inc = 1;
diff --git a/net/sched/act_mpls.c b/net/sched/act_mpls.c
index b9ff3459fdab..adabeccb63e1 100644
--- a/net/sched/act_mpls.c
+++ b/net/sched/act_mpls.c
@@ -385,7 +385,8 @@ static int tcf_mpls_search(struct net *net, struct tc_action **a, u32 index)
}
static int tcf_mpls_offload_act_setup(struct tc_action *act, void *entry_data,
- u32 *index_inc, bool bind)
+ u32 *index_inc, bool bind,
+ struct netlink_ext_ack *extack)
{
if (bind) {
struct flow_action_entry *entry = entry_data;
@@ -410,7 +411,14 @@ static int tcf_mpls_offload_act_setup(struct tc_action *act, void *entry_data,
entry->mpls_mangle.bos = tcf_mpls_bos(act);
entry->mpls_mangle.ttl = tcf_mpls_ttl(act);
break;
+ case TCA_MPLS_ACT_DEC_TTL:
+ NL_SET_ERR_MSG_MOD(extack, "Offload not supported when \"dec_ttl\" option is used");
+ return -EOPNOTSUPP;
+ case TCA_MPLS_ACT_MAC_PUSH:
+ NL_SET_ERR_MSG_MOD(extack, "Offload not supported when \"mac_push\" option is used");
+ return -EOPNOTSUPP;
default:
+ NL_SET_ERR_MSG_MOD(extack, "Unsupported MPLS mode offload");
return -EOPNOTSUPP;
}
*index_inc = 1;
diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c
index 31fcd279c177..e01ef7f109f4 100644
--- a/net/sched/act_pedit.c
+++ b/net/sched/act_pedit.c
@@ -488,7 +488,8 @@ static int tcf_pedit_search(struct net *net, struct tc_action **a, u32 index)
}
static int tcf_pedit_offload_act_setup(struct tc_action *act, void *entry_data,
- u32 *index_inc, bool bind)
+ u32 *index_inc, bool bind,
+ struct netlink_ext_ack *extack)
{
if (bind) {
struct flow_action_entry *entry = entry_data;
@@ -503,6 +504,7 @@ static int tcf_pedit_offload_act_setup(struct tc_action *act, void *entry_data,
entry->id = FLOW_ACTION_ADD;
break;
default:
+ NL_SET_ERR_MSG_MOD(extack, "Unsupported pedit command offload");
return -EOPNOTSUPP;
}
entry->mangle.htype = tcf_pedit_htype(act, k);
diff --git a/net/sched/act_police.c b/net/sched/act_police.c
index f4d917705263..79c8901f66ab 100644
--- a/net/sched/act_police.c
+++ b/net/sched/act_police.c
@@ -419,7 +419,8 @@ static int tcf_police_search(struct net *net, struct tc_action **a, u32 index)
return tcf_idr_search(tn, a, index);
}
-static int tcf_police_act_to_flow_act(int tc_act, u32 *extval)
+static int tcf_police_act_to_flow_act(int tc_act, u32 *extval,
+ struct netlink_ext_ack *extack)
{
int act_id = -EOPNOTSUPP;
@@ -430,19 +431,28 @@ static int tcf_police_act_to_flow_act(int tc_act, u32 *extval)
act_id = FLOW_ACTION_DROP;
else if (tc_act == TC_ACT_PIPE)
act_id = FLOW_ACTION_PIPE;
+ else if (tc_act == TC_ACT_RECLASSIFY)
+ NL_SET_ERR_MSG_MOD(extack, "Offload not supported when conform/exceed action is \"reclassify\"");
+ else
+ NL_SET_ERR_MSG_MOD(extack, "Unsupported conform/exceed action offload");
} else if (TC_ACT_EXT_CMP(tc_act, TC_ACT_GOTO_CHAIN)) {
act_id = FLOW_ACTION_GOTO;
*extval = tc_act & TC_ACT_EXT_VAL_MASK;
} else if (TC_ACT_EXT_CMP(tc_act, TC_ACT_JUMP)) {
act_id = FLOW_ACTION_JUMP;
*extval = tc_act & TC_ACT_EXT_VAL_MASK;
+ } else if (tc_act == TC_ACT_UNSPEC) {
+ NL_SET_ERR_MSG_MOD(extack, "Offload not supported when conform/exceed action is \"continue\"");
+ } else {
+ NL_SET_ERR_MSG_MOD(extack, "Unsupported conform/exceed action offload");
}
return act_id;
}
static int tcf_police_offload_act_setup(struct tc_action *act, void *entry_data,
- u32 *index_inc, bool bind)
+ u32 *index_inc, bool bind,
+ struct netlink_ext_ack *extack)
{
if (bind) {
struct flow_action_entry *entry = entry_data;
@@ -466,14 +476,16 @@ static int tcf_police_offload_act_setup(struct tc_action *act, void *entry_data,
entry->police.mtu = tcf_police_tcfp_mtu(act);
act_id = tcf_police_act_to_flow_act(police->tcf_action,
- &entry->police.exceed.extval);
+ &entry->police.exceed.extval,
+ extack);
if (act_id < 0)
return act_id;
entry->police.exceed.act_id = act_id;
act_id = tcf_police_act_to_flow_act(p->tcfp_result,
- &entry->police.notexceed.extval);
+ &entry->police.notexceed.extval,
+ extack);
if (act_id < 0)
return act_id;
diff --git a/net/sched/act_sample.c b/net/sched/act_sample.c
index 9a22cdda6bbd..2f7f5e44d28c 100644
--- a/net/sched/act_sample.c
+++ b/net/sched/act_sample.c
@@ -291,7 +291,8 @@ static void tcf_offload_sample_get_group(struct flow_action_entry *entry,
}
static int tcf_sample_offload_act_setup(struct tc_action *act, void *entry_data,
- u32 *index_inc, bool bind)
+ u32 *index_inc, bool bind,
+ struct netlink_ext_ack *extack)
{
if (bind) {
struct flow_action_entry *entry = entry_data;
diff --git a/net/sched/act_skbedit.c b/net/sched/act_skbedit.c
index ceba11b198bb..92d0dc754207 100644
--- a/net/sched/act_skbedit.c
+++ b/net/sched/act_skbedit.c
@@ -328,7 +328,8 @@ static size_t tcf_skbedit_get_fill_size(const struct tc_action *act)
}
static int tcf_skbedit_offload_act_setup(struct tc_action *act, void *entry_data,
- u32 *index_inc, bool bind)
+ u32 *index_inc, bool bind,
+ struct netlink_ext_ack *extack)
{
if (bind) {
struct flow_action_entry *entry = entry_data;
@@ -342,7 +343,14 @@ static int tcf_skbedit_offload_act_setup(struct tc_action *act, void *entry_data
} else if (is_tcf_skbedit_priority(act)) {
entry->id = FLOW_ACTION_PRIORITY;
entry->priority = tcf_skbedit_priority(act);
+ } else if (is_tcf_skbedit_queue_mapping(act)) {
+ NL_SET_ERR_MSG_MOD(extack, "Offload not supported when \"queue_mapping\" option is used");
+ return -EOPNOTSUPP;
+ } else if (is_tcf_skbedit_inheritdsfield(act)) {
+ NL_SET_ERR_MSG_MOD(extack, "Offload not supported when \"inheritdsfield\" option is used");
+ return -EOPNOTSUPP;
} else {
+ NL_SET_ERR_MSG_MOD(extack, "Unsupported skbedit option offload");
return -EOPNOTSUPP;
}
*index_inc = 1;
diff --git a/net/sched/act_tunnel_key.c b/net/sched/act_tunnel_key.c
index 23aba03d26a8..856dc23cef8c 100644
--- a/net/sched/act_tunnel_key.c
+++ b/net/sched/act_tunnel_key.c
@@ -808,7 +808,8 @@ static int tcf_tunnel_encap_get_tunnel(struct flow_action_entry *entry,
static int tcf_tunnel_key_offload_act_setup(struct tc_action *act,
void *entry_data,
u32 *index_inc,
- bool bind)
+ bool bind,
+ struct netlink_ext_ack *extack)
{
int err;
@@ -823,6 +824,7 @@ static int tcf_tunnel_key_offload_act_setup(struct tc_action *act,
} else if (is_tcf_tunnel_release(act)) {
entry->id = FLOW_ACTION_TUNNEL_DECAP;
} else {
+ NL_SET_ERR_MSG_MOD(extack, "Unsupported tunnel key mode offload");
return -EOPNOTSUPP;
}
*index_inc = 1;
diff --git a/net/sched/act_vlan.c b/net/sched/act_vlan.c
index 883454c4f921..68b5e772386a 100644
--- a/net/sched/act_vlan.c
+++ b/net/sched/act_vlan.c
@@ -369,7 +369,8 @@ static size_t tcf_vlan_get_fill_size(const struct tc_action *act)
}
static int tcf_vlan_offload_act_setup(struct tc_action *act, void *entry_data,
- u32 *index_inc, bool bind)
+ u32 *index_inc, bool bind,
+ struct netlink_ext_ack *extack)
{
if (bind) {
struct flow_action_entry *entry = entry_data;
@@ -398,6 +399,7 @@ static int tcf_vlan_offload_act_setup(struct tc_action *act, void *entry_data,
tcf_vlan_push_eth(entry->vlan_push_eth.src, entry->vlan_push_eth.dst, act);
break;
default:
+ NL_SET_ERR_MSG_MOD(extack, "Unsupported vlan action mode offload");
return -EOPNOTSUPP;
}
*index_inc = 1;
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 2957f8f5cea7..d8a22bedd026 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -3513,20 +3513,25 @@ EXPORT_SYMBOL(tc_cleanup_offload_action);
static int tc_setup_offload_act(struct tc_action *act,
struct flow_action_entry *entry,
- u32 *index_inc)
+ u32 *index_inc,
+ struct netlink_ext_ack *extack)
{
#ifdef CONFIG_NET_CLS_ACT
- if (act->ops->offload_act_setup)
- return act->ops->offload_act_setup(act, entry, index_inc, true);
- else
+ if (act->ops->offload_act_setup) {
+ return act->ops->offload_act_setup(act, entry, index_inc, true,
+ extack);
+ } else {
+ NL_SET_ERR_MSG(extack, "Action does not support offload");
return -EOPNOTSUPP;
+ }
#else
return 0;
#endif
}
int tc_setup_action(struct flow_action *flow_action,
- struct tc_action *actions[])
+ struct tc_action *actions[],
+ struct netlink_ext_ack *extack)
{
int i, j, index, err = 0;
struct tc_action *act;
@@ -3551,7 +3556,7 @@ int tc_setup_action(struct flow_action *flow_action,
entry->hw_stats = tc_act_hw_stats(act->hw_stats);
entry->hw_index = act->tcfa_index;
index = 0;
- err = tc_setup_offload_act(act, entry, &index);
+ err = tc_setup_offload_act(act, entry, &index, extack);
if (!err)
j += index;
else
@@ -3570,13 +3575,14 @@ err_out_locked:
}
int tc_setup_offload_action(struct flow_action *flow_action,
- const struct tcf_exts *exts)
+ const struct tcf_exts *exts,
+ struct netlink_ext_ack *extack)
{
#ifdef CONFIG_NET_CLS_ACT
if (!exts)
return 0;
- return tc_setup_action(flow_action, exts->actions);
+ return tc_setup_action(flow_action, exts->actions, extack);
#else
return 0;
#endif
diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
index c80fc49c0da1..87e030dfc328 100644
--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -464,14 +464,12 @@ static int fl_hw_replace_filter(struct tcf_proto *tp,
cls_flower.rule->match.key = &f->mkey;
cls_flower.classid = f->res.classid;
- err = tc_setup_offload_action(&cls_flower.rule->action, &f->exts);
+ err = tc_setup_offload_action(&cls_flower.rule->action, &f->exts,
+ cls_flower.common.extack);
if (err) {
kfree(cls_flower.rule);
- if (skip_sw) {
- NL_SET_ERR_MSG_MOD(extack, "Failed to setup flow action");
- return err;
- }
- return 0;
+
+ return skip_sw ? err : 0;
}
err = tc_setup_cb_add(block, tp, TC_SETUP_CLSFLOWER, &cls_flower,
@@ -2354,11 +2352,11 @@ static int fl_reoffload(struct tcf_proto *tp, bool add, flow_setup_cb_t *cb,
cls_flower.rule->match.mask = &f->mask->key;
cls_flower.rule->match.key = &f->mkey;
- err = tc_setup_offload_action(&cls_flower.rule->action, &f->exts);
+ err = tc_setup_offload_action(&cls_flower.rule->action, &f->exts,
+ cls_flower.common.extack);
if (err) {
kfree(cls_flower.rule);
if (tc_skip_sw(f->flags)) {
- NL_SET_ERR_MSG_MOD(extack, "Failed to setup flow action");
__fl_put(f);
return err;
}
diff --git a/net/sched/cls_matchall.c b/net/sched/cls_matchall.c
index ca5670fd5228..06cf22adbab7 100644
--- a/net/sched/cls_matchall.c
+++ b/net/sched/cls_matchall.c
@@ -97,16 +97,13 @@ static int mall_replace_hw_filter(struct tcf_proto *tp,
cls_mall.command = TC_CLSMATCHALL_REPLACE;
cls_mall.cookie = cookie;
- err = tc_setup_offload_action(&cls_mall.rule->action, &head->exts);
+ err = tc_setup_offload_action(&cls_mall.rule->action, &head->exts,
+ cls_mall.common.extack);
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;
+ return skip_sw ? err : 0;
}
err = tc_setup_cb_add(block, tp, TC_SETUP_CLSMATCHALL, &cls_mall,
@@ -302,14 +299,12 @@ static int mall_reoffload(struct tcf_proto *tp, bool add, flow_setup_cb_t *cb,
TC_CLSMATCHALL_REPLACE : TC_CLSMATCHALL_DESTROY;
cls_mall.cookie = (unsigned long)head;
- err = tc_setup_offload_action(&cls_mall.rule->action, &head->exts);
+ err = tc_setup_offload_action(&cls_mall.rule->action, &head->exts,
+ cls_mall.common.extack);
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;
- }
- return 0;
+
+ return add && tc_skip_sw(head->flags) ? err : 0;
}
err = tc_setup_cb_reoffload(block, tp, add, cb, TC_SETUP_CLSMATCHALL,