Tested-by: Mei,JianweiX < jianweix....@intel.com>
-----Original Message-----
From: dev <dev-boun...@dpdk.org> On Behalf Of yanx...@intel.com
Sent: Wednesday, September 9, 2020 6:47 AM
To: Zhang, Qi Z <qi.z.zh...@intel.com>; Guo, Jia <jia....@intel.com>
Cc: dev@dpdk.org; Fu, YanX <yanx...@intel.com>; sta...@dpdk.org
Subject: [dpdk-dev] [PATCH v1 1/1] net/ice: fix link status down
From: FuYanX <yanx...@intel.com>
Add delay to ensure that the hardware FLR is completed.
Fixes: f9cf4f864150 (net/ice: support device initialization)
Cc: sta...@dpdk.org
Signed-off-by: FuYanX <yanx...@intel.com>
---
drivers/net/ice/ice_ethdev.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c index
8d435e889..20bd85e62 100644
--- a/drivers/net/ice/ice_ethdev.c
+++ b/drivers/net/ice/ice_ethdev.c
@@ -2176,6 +2176,11 @@ ice_dev_init(struct rte_eth_dev *dev)
ice_init_controlq_parameter(hw);
+ /* The driver e.g. vfio-pci may triggle a FLR reset.
+ * The operating system is required by PCIe specification to wait 100 ms
+ * before it can assume that the FLR sequence is completed by hardware.
+ */
+ rte_delay_ms(100);
ret = ice_init_hw(hw);
if (ret) {
PMD_INIT_LOG(ERR, "Failed to initialize HW");
--
2.25.1
