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net/mlx5: fix flow split combined with counter

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Currently, for a flow containing a count action, if flow is split to
sub-flows, a new counter will be created for each sub-flow.
However only the counter created for the last sub-flow will be queried
on flow query and cleared on flow removal.

This behavior is wrong, causing a leak of resources.
Need to create just one counter per flow, and use it for all sub-flows.

This patch adds the required check to make sure a counter is
created just once per flow, and used by all sub-flows.

Fixes: fa2d01c87d ("net/mlx5: support flow aging")
Cc: stable@dpdk.org

Signed-off-by: Dekel Peled <dekelp@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
This commit is contained in:
Dekel Peled 2021-01-17 11:40:46 +02:00 committed by Ferruh Yigit
parent 5f8ae44dd4
commit 63f4d5693e
1 changed files with 15 additions and 10 deletions
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25
drivers/net/mlx5/mlx5_flow_dv.c
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@ -10681,17 +10681,22 @@ flow_dv_translate(struct rte_eth_dev *dev,
handle->dvh.modify_hdr->action;
}
if (action_flags & MLX5_FLOW_ACTION_COUNT) {
flow->counter =
flow_dv_translate_create_counter(dev,
dev_flow, count, age);
if (!flow->counter)
return rte_flow_error_set
/*
* Create one count action, to be used
* by all sub-flows.
*/
if (!flow->counter) {
flow->counter =
flow_dv_translate_create_counter
(dev, dev_flow, count,
age);
if (!flow->counter)
return rte_flow_error_set
(error, rte_errno,
RTE_FLOW_ERROR_TYPE_ACTION,
NULL,
"cannot create counter"
" object.");
RTE_FLOW_ERROR_TYPE_ACTION,
NULL, "cannot create counter"
" object.");
}
dev_flow->dv.actions[actions_n] =
(flow_dv_counter_get_by_idx(dev,
flow->counter, NULL))->action;