diff options
| author | Wyborny, Carolyn <carolyn.wyborny@intel.com> | 2017-03-28 08:00:48 -0700 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2017-03-29 02:23:00 -0700 |
| commit | d08a9f6cd1c8fc58fd57724f45841f77e49e1fa3 (patch) | |
| tree | 160a206b2fc491d841b88de59edec50f0728b632 | |
| parent | dab86afdbbd1bc5d5a89b67ed141d2f46c3b4191 (diff) | |
i40e: fix for queue timing delays
This patch adds a delay to Rx queue disables to accommodate HW needs.
v2: Added missing check for disable only, additional details on the
need for the ugly delay and fixed spacing on comment.
Change-ID: I2864ca667ce5dcc2cc44f8718113b719742a46a1
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_main.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 1f89e416156d..a0506e28d167 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -4067,6 +4067,12 @@ static int i40e_vsi_control_rx(struct i40e_vsi *vsi, bool enable) } } + /* Due to HW errata, on Rx disable only, the register can indicate done + * before it really is. Needs 50ms to be sure + */ + if (!enable) + mdelay(50); + return ret; } |