diff mbox series

[v2] net/ice: retry getting VF VSI map after it fails

Message ID 20210924080820.1110722-1-dapengx.yu@intel.com (mailing list archive)
State Accepted
Delegated to: Qi Zhang
Headers show
Series [v2] net/ice: retry getting VF VSI map after it fails | expand

Checks

Context Check Description
ci/iol-testing warning apply patch failure
ci/github-robot: build success github build: passed
ci/intel-Testing success Testing PASS
ci/Intel-compilation success Compilation OK
ci/checkpatch success coding style OK

Commit Message

Yu, DapengX Sept. 24, 2021, 8:08 a.m. UTC
From: Dapeng Yu <dapengx.yu@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@dpdk.org

Signed-off-by: Dapeng Yu <dapengx.yu@intel.com>
---
V2:
* Remove goto 
---
 drivers/net/ice/ice_dcf.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

Comments

Wang, Haiyue Sept. 24, 2021, 8:23 a.m. UTC | #1
> -----Original Message-----
> From: Yu, DapengX <dapengx.yu@intel.com>
> Sent: Friday, September 24, 2021 16:08
> To: Yang, Qiming <qiming.yang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>
> Cc: dev@dpdk.org; Wang, Haiyue <haiyue.wang@intel.com>; Yu, DapengX <dapengx.yu@intel.com>;
> stable@dpdk.org
> Subject: [PATCH v2] net/ice: retry getting VF VSI map after it fails
> 
> From: Dapeng Yu <dapengx.yu@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@dpdk.org
> 
> Signed-off-by: Dapeng Yu <dapengx.yu@intel.com>
> ---
> V2:
> * Remove goto
> ---
>  drivers/net/ice/ice_dcf.c | 17 ++++++++++++++---
>  1 file changed, 14 insertions(+), 3 deletions(-)
> 

Acked-by: Haiyue Wang <haiyue.wang@intel.com>

> --
> 2.27.0
Zhang, Qi Z Sept. 28, 2021, 4:58 a.m. UTC | #2
> -----Original Message-----
> From: Wang, Haiyue <haiyue.wang@intel.com>
> Sent: Friday, September 24, 2021 4:24 PM
> To: Yu, DapengX <dapengx.yu@intel.com>; Yang, Qiming
> <qiming.yang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>
> Cc: dev@dpdk.org; stable@dpdk.org
> Subject: RE: [PATCH v2] net/ice: retry getting VF VSI map after it fails
> 
> > -----Original Message-----
> > From: Yu, DapengX <dapengx.yu@intel.com>
> > Sent: Friday, September 24, 2021 16:08
> > To: Yang, Qiming <qiming.yang@intel.com>; Zhang, Qi Z
> > <qi.z.zhang@intel.com>
> > Cc: dev@dpdk.org; Wang, Haiyue <haiyue.wang@intel.com>; Yu, DapengX
> > <dapengx.yu@intel.com>; stable@dpdk.org
> > Subject: [PATCH v2] net/ice: retry getting VF VSI map after it fails
> >
> > From: Dapeng Yu <dapengx.yu@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@dpdk.org
> >
> > Signed-off-by: Dapeng Yu <dapengx.yu@intel.com>
> > ---
> > V2:
> > * Remove goto
> > ---
> >  drivers/net/ice/ice_dcf.c | 17 ++++++++++++++---
> >  1 file changed, 14 insertions(+), 3 deletions(-)
> >
> 
> Acked-by: Haiyue Wang <haiyue.wang@intel.com>

Applied to dpdk-next-net-intel.

Thanks
Qi
> 
> > --
> > 2.27.0
>
diff mbox series

Patch

diff --git a/drivers/net/ice/ice_dcf.c b/drivers/net/ice/ice_dcf.c
index 38e9a84698..c9c01a14e3 100644
--- a/drivers/net/ice/ice_dcf.c
+++ b/drivers/net/ice/ice_dcf.c
@@ -534,15 +534,26 @@  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 err = 0;
+	int i = 0;
+	int err = -1;
 
 	rte_spinlock_lock(&hw->vc_cmd_send_lock);
 
 	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;
+	for (;;) {
+		if (ice_dcf_get_vf_resource(hw) == 0 &&
+		    ice_dcf_get_vf_vsi_map(hw) >= 0) {
+			err = 0;
+			break;
+		}
+
+		if (++i >= ICE_DCF_ARQ_MAX_RETRIES)
+			break;
+
+		rte_delay_ms(ICE_DCF_ARQ_CHECK_TIME);
+	}
 
 	rte_intr_enable(&pci_dev->intr_handle);
 	ice_dcf_enable_irq0(hw);