[dpdk-dev] [PATCH v2] net/i40e: extend VF reset waiting time

[Wenjun Wu]

When resetting VF, VF will issue reset command to PF, wait a
fixed amount of time, and assume VF reset is done. However,
due to the change of dpdk related library content, the original
delay is not enough. When we use DPDK PF instead of kernel PF,
it may cause VF start error.

This patch extend VF reset waiting time from 200ms to 500ms so that
VF can start normally when using DPDK PF and DPDK VF in most cases.

Signed-off-by: Wenjun Wu <wenjun1...@intel.com>
---
 drivers/net/i40e/i40e_ethdev_vf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/i40e/i40e_ethdev_vf.c 
b/drivers/net/i40e/i40e_ethdev_vf.c
index 3c258ba7cf..aeb6816b9f 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -1236,7 +1236,7 @@ i40evf_reset_vf(struct rte_eth_dev *dev)
          * 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);
+       rte_delay_ms(500);
 
        ret = i40evf_check_vf_reset_done(dev);
        if (ret) {
-- 
2.25.1