[dpdk-dev] [PATCH 1/1] net/i40e: enable auto link update for XXV710

Zhang, Qi Z qi.z.zhang at intel.com
Wed Nov 30 03:26:31 CET 2016


Hi Ferruh:

> -----Original Message-----
> From: Yigit, Ferruh
> Sent: Wednesday, November 30, 2016 1:46 AM
> To: Zhang, Qi Z <qi.z.zhang at intel.com>; Wu, Jingjing <jingjing.wu at intel.com>;
> Zhang, Helin <helin.zhang at intel.com>
> Cc: dev at dpdk.org
> Subject: Re: [dpdk-dev] [PATCH 1/1] net/i40e: enable auto link update for
> XXV710
> 
> Hi Qi,
> 
> On 11/24/2016 11:43 PM, Qi Zhang wrote:
> > This patch remove the limitation that XXV710 device does
> 
> XXV710 is 25G device, and support added in 16.11 (please correct me if this is
> wrong.), but I can't find any DPDK documentation for this device.
> 
> Can you please add some documentation, at least to http://dpdk.org/doc/nics
> and http://dpdk.org/doc/guides/nics/i40e.html
> in a different patch?

For 16.11, since XXV710 is not officially supported, so they are missing in document.
For 17.02 this will be updated. Thanks for remind.
> 
> > not support auto link update.
> 
> Can you please add more details that why we can remove the limitation now?
Ok, will update in v2.
> 
> >
> > Signed-off-by: Qi Zhang <qi.z.zhang at intel.com>
> > ---
> >  drivers/net/i40e/i40e_ethdev.c | 8 ++++----
> >  1 file changed, 4 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/net/i40e/i40e_ethdev.c
> > b/drivers/net/i40e/i40e_ethdev.c index 67778ba..b7a916d 100644
> > --- a/drivers/net/i40e/i40e_ethdev.c
> > +++ b/drivers/net/i40e/i40e_ethdev.c
> > @@ -1628,6 +1628,8 @@ i40e_phy_conf_link(struct i40e_hw *hw,
> >
> >  	/* use get_phy_abilities_resp value for the rest */
> >  	phy_conf.phy_type = phy_ab.phy_type;
> > +	phy_conf.phy_type_ext = phy_ab.phy_type_ext;
> > +	phy_conf.fec_config = phy_ab.mod_type_ext;
> 
> And these changes look like called for all device types, just to double check, are
> these 25G specific?

Actually only XXV710 need this two lines, but base on firmware engineer's input, 
this could be implemented in generic way since no impact for other i40e devices.
> 
> >  	phy_conf.eee_capability = phy_ab.eee_capability;
> >  	phy_conf.eeer = phy_ab.eeer_val;
> >  	phy_conf.low_power_ctrl = phy_ab.d3_lpan; @@ -1653,8 +1655,7 @@
> > i40e_apply_link_speed(struct rte_eth_dev *dev)
> >  	struct rte_eth_conf *conf = &dev->data->dev_conf;
> >
> >  	speed = i40e_parse_link_speeds(conf->link_speeds);
> > -	if (!I40E_PHY_TYPE_SUPPORT_25G(hw->phy.phy_types))
> > -		abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
> > +	abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
> >  	if (!(conf->link_speeds & ETH_LINK_SPEED_FIXED))
> >  		abilities |= I40E_AQ_PHY_AN_ENABLED;
> >  	abilities |= I40E_AQ_PHY_LINK_ENABLED; @@ -1990,8 +1991,7 @@
> > i40e_dev_set_link_down(struct rte_eth_dev *dev)
> >  	uint8_t abilities = 0;
> >  	struct i40e_hw *hw =
> I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
> >
> > -	if (!I40E_PHY_TYPE_SUPPORT_25G(hw->phy.phy_types))
> > -		abilities = I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
> > +	abilities = I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
> >  	return i40e_phy_conf_link(hw, abilities, speed);  }
> >
> >
Thanks!
Qi


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