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dpctl: Properly reflect a rule's offloaded to HW state

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Previously, any rule that is offloaded via a netdev, not necessarily
to the HW, would be reported as "offloaded". This patch fixes this
misalignment, and introduces the 'dp' state, as follows:

rule is in HW via TC offload  -> offloaded=yes dp:tc
rule is in not HW over TC DP  -> offloaded=no  dp:tc
rule is in not HW over OVS DP -> offloaded=no  dp:ovs

To achieve this, the flows's 'offloaded' flag was encapsulated in a new
attrs struct, which contains the offloaded state of the flow and the
DP layer the flow is handled in, and instead of setting the flow's
'offloaded' state based solely on the type of dump it was acquired
via, for netdev flows it now sends the new attrs struct to be
collected along with the rest of the flow via the netdev, allowing
it to be set per flow.

For TC offloads, the offloaded state is set based on the 'in_hw' and
'not_in_hw' flags received from the TC as part of the flower. If no
such flag was received, due to lack of kernel support, it defaults
to true.

Signed-off-by: Gavi Teitz <gavi@mellanox.com>
Acked-by: Roi Dayan <roid@mellanox.com>
[simon: resolved conflict in lib/dpctl.man]
Signed-off-by: Simon Horman <simon.horman@netronome.com>
This commit is contained in:
Gavi Teitz
2018-06-07 09:36:59 +03:00
committed by Simon Horman
parent 21aade70f3
commit d63ca5329f
12 changed files with 105 additions and 37 deletions
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23
lib/tc.c
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@@ -458,6 +458,28 @@ nl_parse_flower_ip(struct nlattr **attrs, struct tc_flower *flower) {
}
}
static enum tc_offloaded_state
nl_get_flower_offloaded_state(struct nlattr **attrs)
{
uint32_t flower_flags = 0;
if (attrs[TCA_FLOWER_FLAGS]) {
flower_flags = nl_attr_get_u32(attrs[TCA_FLOWER_FLAGS]);
if (flower_flags & TCA_CLS_FLAGS_NOT_IN_HW) {
return TC_OFFLOADED_STATE_NOT_IN_HW;
} else if (flower_flags & TCA_CLS_FLAGS_IN_HW) {
return TC_OFFLOADED_STATE_IN_HW;
}
}
return TC_OFFLOADED_STATE_UNDEFINED;
}
static void
nl_parse_flower_flags(struct nlattr **attrs, struct tc_flower *flower)
{
flower->offloaded_state = nl_get_flower_offloaded_state(attrs);
}
static const struct nl_policy pedit_policy[] = {
[TCA_PEDIT_PARMS_EX] = { .type = NL_A_UNSPEC,
.min_len = sizeof(struct tc_pedit),
@@ -942,6 +964,7 @@ nl_parse_flower_options(struct nlattr *nl_options, struct tc_flower *flower)
nl_parse_flower_vlan(attrs, flower);
nl_parse_flower_ip(attrs, flower);
nl_parse_flower_tunnel(attrs, flower);
nl_parse_flower_flags(attrs, flower);
return nl_parse_flower_actions(attrs, flower);
}