> -----Original Message-----
> From: dev <[email protected]> On Behalf Of Lijun Ou
> Sent: Thursday, July 9, 2020 9:48 PM
> To: [email protected]; [email protected];
> [email protected]; [email protected];
> [email protected]
> Cc: [email protected]; [email protected]
> Subject: [dpdk-dev] [PATCH] app/testpmd: fix the default RSS key
> configuration
>
> When an user runs a flow create cmd to configure an RSS rule
> without specifying the empty rss actions in testpmd, this mean
> that the flow gets the default RSS functions. However, the
> testpmd is not set the default RSS key incorrectly when RSS key
> is specified in flow create cmd.
Hi Lijun,
I think it works.
When we create an RSS flow rule which doesn't specify any 'rss-hash-key', the
'rss-hash-key' will be updated with the default key.
Step 1:
testpmd> show port 0 rss-hash key
RSS functions:
all ipv4-frag ipv4-other ipv6-frag ipv6-other ip
RSS key:
4439796BB54C5023B675EA5B124F9F30B8A2C03DDFDC4D02A08C9B334AF64A4C05C6FA343958D8557D99583AE138C92E81150366
Step 2:
testpmd> flow create 0 ingress pattern eth / ipv4 / udp / end actions rss types
ipv4-udp end queues end / end
Flow rule #0 created
Step 3:
testpmd> show port 0 rss-hash key
RSS functions:
all ipv4-udp udp
RSS key:
74657374706D6427732064656661756C74205253532068617368206B65792C206F7665727269646520697420666F722062657474
Thanks,
Phil
>
> Now, it uses rte_eth_dev_rss_hash_conf_get to correctly the
> default rss key.
>
> Fixes: ac8d22de2394 ("ethdev: flatten RSS configuration in flow API")
> Cc: [email protected]
>
> Signed-off-by: Lijun Ou <[email protected]>
> ---
> app/test-pmd/cmdline_flow.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/app/test-pmd/cmdline_flow.c b/app/test-pmd/cmdline_flow.c
> index 4e2006c..7eddde4 100644
> --- a/app/test-pmd/cmdline_flow.c
> +++ b/app/test-pmd/cmdline_flow.c
> @@ -4168,6 +4168,7 @@ parse_vc_action_rss(struct context *ctx, const
> struct token *token,
> action_rss_data->queue[i] = i;
> if (!port_id_is_invalid(ctx->port, DISABLED_WARN) &&
> ctx->port != (portid_t)RTE_PORT_ALL) {
> + struct rte_eth_rss_conf rss_conf = {0};
> struct rte_eth_dev_info info;
> int ret2;
>
> @@ -4178,6 +4179,13 @@ parse_vc_action_rss(struct context *ctx, const
> struct token *token,
> action_rss_data->conf.key_len =
> RTE_MIN(sizeof(action_rss_data->key),
> info.hash_key_size);
> +
> + rss_conf.rss_key_len = sizeof(action_rss_data->key);
> + rss_conf.rss_key = action_rss_data->key;
> + ret2 = rte_eth_dev_rss_hash_conf_get(ctx->port,
> &rss_conf);
> + if (ret2 != 0)
> + return ret2;
> + action_rss_data->conf.key = rss_conf.rss_key;
> }
> action->conf = &action_rss_data->conf;
> return ret;
> --
> 2.7.4
