[dpdk-stable] [PATCH] net/ice: retry getting VF VSI map after it fails
dapengx.yu at intel.com
dapengx.yu at intel.com
Tue Sep 14 05:08:58 CEST 2021
From: Dapeng Yu <dapengx.yu at intel.com>
The request of getting VF VSI map request may fail when DCF is busy,
this patch adds retry mechanism to make it able to succeed.
Fixes: b09d34ac8584 ("net/ice: fix flow redirector")
Cc: stable at dpdk.org
Signed-off-by: Dapeng Yu <dapengx.yu at intel.com>
---
drivers/net/ice/ice_dcf.c | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ice/ice_dcf.c b/drivers/net/ice/ice_dcf.c
index 38e9a84698..043bd48192 100644
--- a/drivers/net/ice/ice_dcf.c
+++ b/drivers/net/ice/ice_dcf.c
@@ -534,6 +534,7 @@ int
ice_dcf_handle_vsi_update_event(struct ice_dcf_hw *hw)
{
struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(hw->eth_dev);
+ int i = 0;
int err = 0;
rte_spinlock_lock(&hw->vc_cmd_send_lock);
@@ -541,8 +542,18 @@ ice_dcf_handle_vsi_update_event(struct ice_dcf_hw *hw)
rte_intr_disable(&pci_dev->intr_handle);
ice_dcf_disable_irq0(hw);
- if (ice_dcf_get_vf_resource(hw) || ice_dcf_get_vf_vsi_map(hw) < 0)
- err = -1;
+ do {
+ if (ice_dcf_get_vf_resource(hw) ||
+ ice_dcf_get_vf_vsi_map(hw) < 0) {
+ err = -1;
+ goto again;
+ } else {
+ err = 0;
+ break;
+ }
+again:
+ rte_delay_ms(ICE_DCF_ARQ_CHECK_TIME);
+ } while (i++ < ICE_DCF_ARQ_MAX_RETRIES);
rte_intr_enable(&pci_dev->intr_handle);
ice_dcf_enable_irq0(hw);
--
2.27.0
More information about the stable
mailing list