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* [dpdk-dev] [PATCH v1] net/iavf: fix reset VF doesn't notify PF to reset
@ 2020-11-05  8:32 Steve Yang
  2020-11-06  2:58 ` Xing, Beilei
  2020-11-09  6:51 ` [dpdk-dev] [PATCH v2 0/2] net/iavf: backported bug fixes from i40evf to iavf Steve Yang
  0 siblings, 2 replies; 12+ messages in thread
From: Steve Yang @ 2020-11-05  8:32 UTC (permalink / raw)
  To: dev; +Cc: qiming.yang, beilei.xing, jingjing.wu, Steve Yang

When VF closed, the VF should notify PF to close/reset relative
resources from PF side.

Check the VF RSS offload flag and ignore relative operation when
iavf hash uninit to avoid reset/close error.

Fixes: 22b123a36d07 ("net/avf: initialize PMD")

Signed-off-by: Steve Yang <stevex.yang@intel.com>
---
 drivers/common/iavf/iavf_prototype.h |  1 +
 drivers/common/iavf/version.map      |  1 +
 drivers/net/iavf/iavf_ethdev.c       | 48 +++++++++++++++++++++++++++-
 drivers/net/iavf/iavf_hash.c         |  9 ++++--
 4 files changed, 55 insertions(+), 4 deletions(-)

diff --git a/drivers/common/iavf/iavf_prototype.h b/drivers/common/iavf/iavf_prototype.h
index f34e77db0f..3998d26dc0 100644
--- a/drivers/common/iavf/iavf_prototype.h
+++ b/drivers/common/iavf/iavf_prototype.h
@@ -83,6 +83,7 @@ void iavf_destroy_spinlock(struct iavf_spinlock *sp);
 __rte_internal
 void iavf_vf_parse_hw_config(struct iavf_hw *hw,
 			     struct virtchnl_vf_resource *msg);
+__rte_internal
 enum iavf_status iavf_vf_reset(struct iavf_hw *hw);
 __rte_internal
 enum iavf_status iavf_aq_send_msg_to_pf(struct iavf_hw *hw,
diff --git a/drivers/common/iavf/version.map b/drivers/common/iavf/version.map
index e0f117197c..6c1427cca4 100644
--- a/drivers/common/iavf/version.map
+++ b/drivers/common/iavf/version.map
@@ -7,6 +7,7 @@ INTERNAL {
 	iavf_set_mac_type;
 	iavf_shutdown_adminq;
 	iavf_vf_parse_hw_config;
+	iavf_vf_reset;
 
 	local: *;
 };
diff --git a/drivers/net/iavf/iavf_ethdev.c b/drivers/net/iavf/iavf_ethdev.c
index 7e3c26a94e..e2498a184e 100644
--- a/drivers/net/iavf/iavf_ethdev.c
+++ b/drivers/net/iavf/iavf_ethdev.c
@@ -1780,6 +1780,34 @@ iavf_init_proto_xtr(struct rte_eth_dev *dev)
 	}
 }
 
+static int
+iavf_reset_vf(struct iavf_hw *hw)
+{
+	int ret;
+	if (iavf_vf_reset(hw) != IAVF_SUCCESS) {
+		PMD_INIT_LOG(ERR, "Reset VF NIC failed");
+		return -1;
+	}
+	/**
+	 * After issuing vf reset command to pf, pf won't necessarily
+	 * reset vf, it depends on what state it exactly is. If it's not
+	 * initialized yet, it won't have vf reset since it's in a certain
+	 * state. If not, it will try to reset. Even vf is reset, pf will
+	 * set I40E_VFGEN_RSTAT to COMPLETE first, then wait 10ms and set
+	 * it to ACTIVE. In this duration, vf may not catch the moment that
+	 * COMPLETE is set. So, for vf, we'll try to wait a long time.
+	 */
+	rte_delay_ms(200);
+
+	ret = iavf_check_vf_reset_done(hw);
+	if (ret) {
+		PMD_INIT_LOG(ERR, "VF is still resetting");
+		return ret;
+	}
+
+	return 0;
+}
+
 static int
 iavf_init_vf(struct rte_eth_dev *dev)
 {
@@ -1814,6 +1842,24 @@ iavf_init_vf(struct rte_eth_dev *dev)
 		goto err;
 	}
 
+	/* Reset VF and wait until it's complete */
+	if (iavf_reset_vf(hw)) {
+		PMD_INIT_LOG(ERR, "reset NIC failed");
+		goto err_aq;
+	}
+
+	/* VF reset, shutdown admin queue and initialize again */
+	if (iavf_shutdown_adminq(hw) != IAVF_SUCCESS) {
+		PMD_INIT_LOG(ERR, "iavf_shutdown_adminq failed");
+		goto err;
+	}
+
+	iavf_init_adminq_parameter(hw);
+	if (iavf_init_adminq(hw) != IAVF_SUCCESS) {
+		PMD_INIT_LOG(ERR, "init_adminq failed");
+		goto err;
+	}
+
 	vf->aq_resp = rte_zmalloc("vf_aq_resp", IAVF_AQ_BUF_SZ, 0);
 	if (!vf->aq_resp) {
 		PMD_INIT_LOG(ERR, "unable to allocate vf_aq_resp memory");
@@ -2050,7 +2096,7 @@ iavf_dev_close(struct rte_eth_dev *dev)
 
 	iavf_flow_flush(dev, NULL);
 	iavf_flow_uninit(adapter);
-
+	iavf_reset_vf(hw);
 	/*
 	 * disable promiscuous mode before reset vf
 	 * it is a workaround solution when work with kernel driver
diff --git a/drivers/net/iavf/iavf_hash.c b/drivers/net/iavf/iavf_hash.c
index 8a5a6bb5a4..d3e9218f75 100644
--- a/drivers/net/iavf/iavf_hash.c
+++ b/drivers/net/iavf/iavf_hash.c
@@ -1093,10 +1093,13 @@ iavf_hash_uninit(struct iavf_adapter *ad)
 	if (vf->vf_reset)
 		return;
 
-	if (iavf_hash_default_set(ad, false))
-		PMD_DRV_LOG(ERR, "fail to delete default RSS");
+	if (vf->vf_res &&
+	    vf->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF) {
+		if (iavf_hash_default_set(ad, false))
+			PMD_DRV_LOG(ERR, "fail to delete default RSS");
 
-	iavf_unregister_parser(&iavf_hash_parser, ad);
+		iavf_unregister_parser(&iavf_hash_parser, ad);
+	}
 }
 
 static void
-- 
2.17.1


^ permalink raw reply	[flat|nested] 12+ messages in thread

end of thread, other threads:[~2020-11-13  7:45 UTC | newest]

Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-11-05  8:32 [dpdk-dev] [PATCH v1] net/iavf: fix reset VF doesn't notify PF to reset Steve Yang
2020-11-06  2:58 ` Xing, Beilei
2020-11-09  6:51 ` [dpdk-dev] [PATCH v2 0/2] net/iavf: backported bug fixes from i40evf to iavf Steve Yang
2020-11-09  6:51   ` [dpdk-dev] [PATCH v2 1/2] net/iavf: fix reset VF doesn't notify PF to reset Steve Yang
2020-11-10  5:56     ` Xing, Beilei
2020-11-09  6:51   ` [dpdk-dev] [PATCH v2 2/2] net/iavf: fix the RSS error when VF port closed Steve Yang
2020-11-12 11:47     ` Zhang, Qi Z
2020-11-13  0:46   ` [dpdk-dev] [PATCH v2 0/2] net/iavf: backported bug fixes from i40evf to iavf Steve Yang
2020-11-13  0:46     ` [dpdk-dev] [PATCH v3 1/2] net/iavf: fix reset VF doesn't notify PF to reset Steve Yang
2020-11-13  7:45       ` Xing, Beilei
2020-11-13  0:46     ` [dpdk-dev] [PATCH v3 2/2] net/iavf: fix the RSS error when VF port closed Steve Yang
2020-11-13  5:38       ` Zhang, Qi Z

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