dpdk: DPDK 20.05 iavf fdir bug-fix patch cherry pick

After VF reset, FDIR rule still takes effect. To solve the issue,
this patch adds to flush all flows before flow uninit. VIRTCHNL
sends message to PF by Admin Queue, so flow flush should be implemented
before Admin Queue shut down.

Type: fix

Signed-off-by: Chenmin Sun <chenmin.sun@intel.com>
Change-Id: I8ba0db7cd7646eaabd5745f74952016b0b968bbb

diff --git a/build/external/patches/dpdk_20.02/0018-net-iavf-fix-VF-reset-for-flow-director-rule.patch b/build/external/patches/dpdk_20.02/0018-net-iavf-fix-VF-reset-for-flow-director-rule.patch
new file mode 100644 (file)
index 0000000..13ac0ae
--- /dev/null
+++ b/build/external/patches/dpdk_20.02/0018-net-iavf-fix-VF-reset-for-flow-director-rule.patch
@@ -0,0 +1,70 @@
+From ada64daa1a5b5745263b4f265f5b927194219e74 Mon Sep 17 00:00:00 2001
+From: Simei Su <simei.su@intel.com>
+Date: Tue, 28 Apr 2020 13:49:19 +0800
+Subject: [DPDK] net/iavf: fix VF reset for flow director rule
+
+After VF reset, FDIR rule still takes effect. To solve the issue,
+this patch adds to flush all flows before flow uninit. VIRTCHNL
+sends message to PF by Admin Queue, so flow flush should be implemented
+before Admin Queue shut down.
+
+Fixes: ff2d0c345c3b ("net/iavf: support generic flow API")
+
+Signed-off-by: Simei Su <simei.su@intel.com>
+Acked-by: Xiaolong Ye <xiaolong.ye@intel.com>
+---
+ drivers/net/iavf/iavf_ethdev.c       | 1 +
+ drivers/net/iavf/iavf_generic_flow.c | 4 +---
+ drivers/net/iavf/iavf_generic_flow.h | 2 ++
+ 3 files changed, 4 insertions(+), 3 deletions(-)
+
+diff --git a/drivers/net/iavf/iavf_ethdev.c b/drivers/net/iavf/iavf_ethdev.c
+index 117fbc5f7..e09efffd1 100644
+--- a/drivers/net/iavf/iavf_ethdev.c
++++ b/drivers/net/iavf/iavf_ethdev.c
+@@ -1431,6 +1431,7 @@ iavf_dev_close(struct rte_eth_dev *dev)
+               IAVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
+ 
+       iavf_dev_stop(dev);
++      iavf_flow_flush(dev, NULL);
+       iavf_shutdown_adminq(hw);
+       /* disable uio intr before callback unregister */
+       rte_intr_disable(intr_handle);
+diff --git a/drivers/net/iavf/iavf_generic_flow.c b/drivers/net/iavf/iavf_generic_flow.c
+index bca1ffeb3..8c66ac8f2 100644
+--- a/drivers/net/iavf/iavf_generic_flow.c
++++ b/drivers/net/iavf/iavf_generic_flow.c
+@@ -34,8 +34,6 @@ static struct rte_flow *iavf_flow_create(struct rte_eth_dev *dev,
+ static int iavf_flow_destroy(struct rte_eth_dev *dev,
+               struct rte_flow *flow,
+               struct rte_flow_error *error);
+-static int iavf_flow_flush(struct rte_eth_dev *dev,
+-              struct rte_flow_error *error);
+ static int iavf_flow_query(struct rte_eth_dev *dev,
+               struct rte_flow *flow,
+               const struct rte_flow_action *actions,
+@@ -966,7 +964,7 @@ iavf_flow_destroy(struct rte_eth_dev *dev,
+       return ret;
+ }
+ 
+-static int
++int
+ iavf_flow_flush(struct rte_eth_dev *dev,
+               struct rte_flow_error *error)
+ {
+diff --git a/drivers/net/iavf/iavf_generic_flow.h b/drivers/net/iavf/iavf_generic_flow.h
+index c41ca1bd9..978d0716b 100644
+--- a/drivers/net/iavf/iavf_generic_flow.h
++++ b/drivers/net/iavf/iavf_generic_flow.h
+@@ -306,6 +306,8 @@ struct iavf_flow_parser_node {
+ void iavf_register_flow_engine(struct iavf_flow_engine *engine);
+ int iavf_flow_init(struct iavf_adapter *ad);
+ void iavf_flow_uninit(struct iavf_adapter *ad);
++int iavf_flow_flush(struct rte_eth_dev *dev,
++              struct rte_flow_error *error);
+ int iavf_register_parser(struct iavf_flow_parser *parser,
+                        struct iavf_adapter *ad);
+ void iavf_unregister_parser(struct iavf_flow_parser *parser,
+-- 
+2.17.1
+