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From 724d67b36f9e6bbbfac88b29fee019c05284a888 Mon Sep 17 00:00:00 2001
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From: Kamal Heib <kheib@redhat.com>
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Date: Thu, 9 Nov 2017 04:44:32 -0500
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Subject: [PATCH] tc: Reflect HW offload status
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Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1456539
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commit e57285b81a098ed705d683ce94f9abd1cc53438a
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Author: Or Gerlitz <ogerlitz@mellanox.com>
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Date: Thu May 4 16:15:15 2017 +0300
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tc: Reflect HW offload status
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Currently there is no way of querying whether a filter is
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offloaded to HW or not when using "both" policy (where none
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of skip_sw or skip_hw flags are set by user-space).
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Add two new flags, "in hw" and "not in hw" such that user
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space can determine if a filter is actually offloaded to
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hw or not. The "in hw" UAPI semantics was chosen so it's
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similar to the "skip hw" flag logic.
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If none of these two flags are set, this signals running
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over older kernel.
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Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
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Reviewed-by: Jiri Pirko <jiri@mellanox.com>
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Reviewed-by: Simon Horman <simon.horman@netronome.com>
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Signed-off-by: Kamal Heib <kheib@redhat.com>
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---
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tc/f_bpf.c | 5 +++++
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tc/f_flower.c | 5 +++++
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tc/f_matchall.c | 5 +++++
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tc/f_u32.c | 5 +++++
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4 files changed, 20 insertions(+)
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diff --git a/tc/f_bpf.c b/tc/f_bpf.c
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index df8a259..75c44c0 100644
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--- a/tc/f_bpf.c
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+++ b/tc/f_bpf.c
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@@ -210,6 +210,11 @@ static int bpf_print_opt(struct filter_util *qu, FILE *f,
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fprintf(f, "skip_hw ");
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if (flags & TCA_CLS_FLAGS_SKIP_SW)
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fprintf(f, "skip_sw ");
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+
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+ if (flags & TCA_CLS_FLAGS_IN_HW)
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+ fprintf(f, "in_hw ");
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+ else if (flags & TCA_CLS_FLAGS_NOT_IN_HW)
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+ fprintf(f, "not_in_hw ");
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}
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if (tb[TCA_BPF_OPS] && tb[TCA_BPF_OPS_LEN])
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diff --git a/tc/f_flower.c b/tc/f_flower.c
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index 5aac4a0..ebc63ca 100644
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--- a/tc/f_flower.c
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+++ b/tc/f_flower.c
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@@ -1171,6 +1171,11 @@ static int flower_print_opt(struct filter_util *qu, FILE *f,
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fprintf(f, "\n skip_hw");
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if (flags & TCA_CLS_FLAGS_SKIP_SW)
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fprintf(f, "\n skip_sw");
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+
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+ if (flags & TCA_CLS_FLAGS_IN_HW)
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+ fprintf(f, "\n in_hw");
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+ else if (flags & TCA_CLS_FLAGS_NOT_IN_HW)
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+ fprintf(f, "\n not_in_hw");
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}
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if (tb[TCA_FLOWER_ACT])
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diff --git a/tc/f_matchall.c b/tc/f_matchall.c
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index ac48630..5a51e75 100644
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--- a/tc/f_matchall.c
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+++ b/tc/f_matchall.c
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@@ -137,6 +137,11 @@ static int matchall_print_opt(struct filter_util *qu, FILE *f,
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fprintf(f, "\n skip_hw");
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if (flags & TCA_CLS_FLAGS_SKIP_SW)
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fprintf(f, "\n skip_sw");
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+
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+ if (flags & TCA_CLS_FLAGS_IN_HW)
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+ fprintf(f, "\n in_hw");
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+ else if (flags & TCA_CLS_FLAGS_NOT_IN_HW)
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+ fprintf(f, "\n not_in_hw");
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}
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if (tb[TCA_MATCHALL_ACT])
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diff --git a/tc/f_u32.c b/tc/f_u32.c
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index 92c1fcd..ff700e9 100644
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--- a/tc/f_u32.c
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+++ b/tc/f_u32.c
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@@ -1264,6 +1264,11 @@ static int u32_print_opt(struct filter_util *qu, FILE *f, struct rtattr *opt,
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fprintf(f, "skip_hw ");
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if (flags & TCA_CLS_FLAGS_SKIP_SW)
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fprintf(f, "skip_sw ");
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+
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+ if (flags & TCA_CLS_FLAGS_IN_HW)
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+ fprintf(f, "in_hw ");
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+ else if (flags & TCA_CLS_FLAGS_NOT_IN_HW)
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+ fprintf(f, "not_in_hw ");
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}
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if (tb[TCA_U32_PCNT]) {
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--
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1.8.3.1
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