From e57285b81a098ed705d683ce94f9abd1cc53438a Mon Sep 17 00:00:00 2001 From: Or Gerlitz Date: Thu, 4 May 2017 16:15:15 +0300 Subject: [PATCH] tc: Reflect HW offload status Currently there is no way of querying whether a filter is offloaded to HW or not when using "both" policy (where none of skip_sw or skip_hw flags are set by user-space). Add two new flags, "in hw" and "not in hw" such that user space can determine if a filter is actually offloaded to hw or not. The "in hw" UAPI semantics was chosen so it's similar to the "skip hw" flag logic. If none of these two flags are set, this signals running over older kernel. Signed-off-by: Or Gerlitz Reviewed-by: Jiri Pirko Reviewed-by: Simon Horman --- tc/f_bpf.c | 5 +++++ tc/f_flower.c | 5 +++++ tc/f_matchall.c | 5 +++++ tc/f_u32.c | 5 +++++ 4 files changed, 20 insertions(+) diff --git a/tc/f_bpf.c b/tc/f_bpf.c index df8a259e1..75c44c06c 100644 --- a/tc/f_bpf.c +++ b/tc/f_bpf.c @@ -210,6 +210,11 @@ static int bpf_print_opt(struct filter_util *qu, FILE *f, fprintf(f, "skip_hw "); if (flags & TCA_CLS_FLAGS_SKIP_SW) fprintf(f, "skip_sw "); + + if (flags & TCA_CLS_FLAGS_IN_HW) + fprintf(f, "in_hw "); + else if (flags & TCA_CLS_FLAGS_NOT_IN_HW) + fprintf(f, "not_in_hw "); } if (tb[TCA_BPF_OPS] && tb[TCA_BPF_OPS_LEN]) diff --git a/tc/f_flower.c b/tc/f_flower.c index 5aac4a083..ebc63ca6b 100644 --- a/tc/f_flower.c +++ b/tc/f_flower.c @@ -1171,6 +1171,11 @@ static int flower_print_opt(struct filter_util *qu, FILE *f, fprintf(f, "\n skip_hw"); if (flags & TCA_CLS_FLAGS_SKIP_SW) fprintf(f, "\n skip_sw"); + + if (flags & TCA_CLS_FLAGS_IN_HW) + fprintf(f, "\n in_hw"); + else if (flags & TCA_CLS_FLAGS_NOT_IN_HW) + fprintf(f, "\n not_in_hw"); } if (tb[TCA_FLOWER_ACT]) diff --git a/tc/f_matchall.c b/tc/f_matchall.c index ac4863083..5a51e7553 100644 --- a/tc/f_matchall.c +++ b/tc/f_matchall.c @@ -137,6 +137,11 @@ static int matchall_print_opt(struct filter_util *qu, FILE *f, fprintf(f, "\n skip_hw"); if (flags & TCA_CLS_FLAGS_SKIP_SW) fprintf(f, "\n skip_sw"); + + if (flags & TCA_CLS_FLAGS_IN_HW) + fprintf(f, "\n in_hw"); + else if (flags & TCA_CLS_FLAGS_NOT_IN_HW) + fprintf(f, "\n not_in_hw"); } if (tb[TCA_MATCHALL_ACT]) diff --git a/tc/f_u32.c b/tc/f_u32.c index 92c1fcd45..ff700e9f4 100644 --- a/tc/f_u32.c +++ b/tc/f_u32.c @@ -1264,6 +1264,11 @@ static int u32_print_opt(struct filter_util *qu, FILE *f, struct rtattr *opt, fprintf(f, "skip_hw "); if (flags & TCA_CLS_FLAGS_SKIP_SW) fprintf(f, "skip_sw "); + + if (flags & TCA_CLS_FLAGS_IN_HW) + fprintf(f, "in_hw "); + else if (flags & TCA_CLS_FLAGS_NOT_IN_HW) + fprintf(f, "not_in_hw "); } if (tb[TCA_U32_PCNT]) { -- 2.47.2