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[v3,next,S32,03/13] i40e: Move HW flush

Message ID 1459508173-22777-4-git-send-email-harshitha.ramamurthy@intel.com
State Accepted
Delegated to: Jeff Kirsher
Headers show

Commit Message

Harshitha Ramamurthy April 1, 2016, 10:56 a.m. UTC 
From: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>

This patch moves the HW flush routine to the end of the reset flow,
after the completion of writing to the device VFLR registers- the
benefit is to avoid problems in the passthrough routines.

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Change-ID: Ieb56866f21895e6c1fc514b7328c3df79807a57c
---
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 1 +
 1 file changed, 1 insertion(+)

Comments

Bowers, AndrewX April 5, 2016, 7:45 p.m. UTC | #1 
> -----Original Message-----
> From: Intel-wired-lan [mailto:intel-wired-lan-bounces@lists.osuosl.org] On
> Behalf Of Harshitha Ramamurthy
> Sent: Friday, April 01, 2016 3:56 AM
> To: intel-wired-lan@lists.osuosl.org
> Subject: [Intel-wired-lan] [v3 next PATCH S32 03/13] i40e: Move HW flush
> 
> From: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
> 
> This patch moves the HW flush routine to the end of the reset flow, after the
> completion of writing to the device VFLR registers- the benefit is to avoid
> problems in the passthrough routines.
> 
> Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
> Change-ID: Ieb56866f21895e6c1fc514b7328c3df79807a57c
> ---
>  drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 1 +
>  1 file changed, 1 insertion(+)

Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Reset functions normally
diff mbox

Patch

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 9924503..f2a9c14 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -941,6 +941,7 @@  void i40e_reset_vf(struct i40e_vf *vf, bool flr)
 	reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32;
 	bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32;
 	wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
+	i40e_flush(hw);
 
 	if (i40e_quiesce_vf_pci(vf))
 		dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",