diff options
| author | Ido Schimmel | 2022-04-07 10:35:27 +0300 |
|---|---|---|
| committer | David S. Miller | 2022-04-08 13:45:43 +0100 |
| commit | b50e462bc22df4488ec04d85606646e3db5952b8 (patch) | |
| tree | 3e3c6063f3bd4daa7721d1b2976bb6bc2f41e71c | |
| parent | bf3b99e4f9ce52e8da6158894be5679d1217082b (diff) | |
net/sched: act_police: Add extack messages for offload failure
For better error reporting to user space, add extack messages when
police action offload fails.
Example:
# echo 1 > /sys/kernel/tracing/events/netlink/netlink_extack/enable
# tc filter add dev dummy0 ingress pref 1 proto all matchall skip_sw action police rate 100Mbit burst 10000
Error: cls_matchall: Failed to setup flow action.
We have an error talking to the kernel
# cat /sys/kernel/tracing/trace_pipe
tc-182 [000] b..1. 21.592969: netlink_extack: msg=act_police: Offload not supported when conform/exceed action is "reclassify"
tc-182 [000] ..... 21.592982: netlink_extack: msg=cls_matchall: Failed to setup flow action
# tc filter add dev dummy0 ingress pref 1 proto all matchall skip_sw action police rate 100Mbit burst 10000 conform-exceed drop/continue
Error: cls_matchall: Failed to setup flow action.
We have an error talking to the kernel
# cat /sys/kernel/tracing/trace_pipe
tc-184 [000] b..1. 38.882579: netlink_extack: msg=act_police: Offload not supported when conform/exceed action is "continue"
tc-184 [000] ..... 38.882593: netlink_extack: msg=cls_matchall: Failed to setup flow action
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/sched/act_police.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/net/sched/act_police.c b/net/sched/act_police.c index 77c17e9b46d1..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; @@ -430,12 +431,20 @@ 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; @@ -467,14 +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; |