dpdk/0082-net-hns3-fix-flow-counter-value.patch
speech_white 3a8995b1ad Update DPDK baseline version
Update DPDK version from 19.11 to 20.11 and also support
hns3 PMD for Kunpeng 920 and Kunpeng 930.

Signed-off-by: speech_white <humin29@huawei.com>
2021-06-28 00:52:34 +00:00

54 lines
1.7 KiB
Diff

From c75bc1ba60e3af6a8751048a912a01175d940833 Mon Sep 17 00:00:00 2001
From: Chengwen Feng <fengchengwen@huawei.com>
Date: Wed, 31 Mar 2021 18:01:40 +0800
Subject: [PATCH 082/189] net/hns3: fix flow counter value
User could create flow rules with specified counter by the action of
RTE_FLOW_ACTION_TYPE_COUNT, but the counter may retain the original
value when create.
This patch fix the bug by read the counter when creating the rule
because the counter is read-clear.
Fixes: fcba820d9b9e ("net/hns3: support flow director")
Cc: stable@dpdk.org
Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
---
drivers/net/hns3/hns3_flow.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/net/hns3/hns3_flow.c b/drivers/net/hns3/hns3_flow.c
index a016857..3cca416 100644
--- a/drivers/net/hns3/hns3_flow.c
+++ b/drivers/net/hns3/hns3_flow.c
@@ -158,7 +158,10 @@ hns3_counter_new(struct rte_eth_dev *dev, uint32_t shared, uint32_t id,
{
struct hns3_adapter *hns = dev->data->dev_private;
struct hns3_pf *pf = &hns->pf;
+ struct hns3_hw *hw = &hns->hw;
struct hns3_flow_counter *cnt;
+ uint64_t value;
+ int ret;
cnt = hns3_counter_lookup(dev, id);
if (cnt) {
@@ -171,6 +174,13 @@ hns3_counter_new(struct rte_eth_dev *dev, uint32_t shared, uint32_t id,
return 0;
}
+ /* Clear the counter by read ops because the counter is read-clear */
+ ret = hns3_get_count(hw, id, &value);
+ if (ret)
+ return rte_flow_error_set(error, EIO,
+ RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
+ "Clear counter failed!");
+
cnt = rte_zmalloc("hns3 counter", sizeof(*cnt), 0);
if (cnt == NULL)
return rte_flow_error_set(error, ENOMEM,
--
2.7.4