[dpdk-dev] [PATCH] net/i40e: fix SFP I X722 with FW4.16

[Zhang, Qi Z]

> -----Original Message-----
> From: dev <dev-bounces at dpdk.org> On Behalf Of Zhang, Qi Z
> Sent: Wednesday, January 13, 2021 12:09 PM
> To: Weifeng Li <liweifeng96 at 126.com>; Xing, Beilei <beilei.xing at intel.com>;
> Guo, Jia <jia.guo at intel.com>
> Cc: dev at dpdk.org; stable at dpdk.org
> Subject: Re: [dpdk-dev] [PATCH] net/i40e: fix SFP I X722 with FW4.16
> 
> 
> 
> > -----Original Message-----
> > From: dev <dev-bounces at dpdk.org> On Behalf Of Weifeng Li
> > Sent: Sunday, January 10, 2021 4:34 PM
> > To: Xing, Beilei <beilei.xing at intel.com>; Guo, Jia <jia.guo at intel.com>
> > Cc: dev at dpdk.org; Weifeng Li <liweifeng96 at 126.com>; stable at dpdk.org
> > Subject: [dpdk-dev] [PATCH] net/i40e: fix SFP I X722 with FW4.16
> >
> > When NVM API version is 1.7 or above adminq operation to set TPID is
> > set as supported. This cause using adminq instead of registers.
> > For SFP_I_X722 FW4.16, reported NVM API version is 1.8, and this cause
> > adminq operation to set as supported but it is not supported on FW4.16
> > Additional check added for SFP_I_X722 to not enable adminq operation.
> 
> The commit log can be simplified to
> Disable "802.1ad frames ability" for SFP_I_X722 as it does not support.
> 
> >
> > Fixes: 9efa8d28b4da ("net/i40e: fix SFP X722 with FW4.16")
> > Cc: stable at dpdk.org
> >
> > Signed-off-by: Weifeng Li <liweifeng96 at 126.com>
> > ---
> >  drivers/net/i40e/i40e_ethdev.c | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/net/i40e/i40e_ethdev.c
> > b/drivers/net/i40e/i40e_ethdev.c index 1462248..a07879c 100644
> > --- a/drivers/net/i40e/i40e_ethdev.c
> > +++ b/drivers/net/i40e/i40e_ethdev.c
> > @@ -1550,7 +1550,8 @@ eth_i40e_dev_init(struct rte_eth_dev *dev, void
> > *init_params __rte_unused)
> >  		return -EIO;
> >  	}
> >  	/* Firmware of SFP x722 does not support adminq option */
> 
> This is not the problem of you patch, but the comment is totally misleading,
> what does "adminq option" means?
> could you help to correct in v2?, I40E_HW_FLAG_802_1AD_CAPABLE should
> means"802.1ad frames ability"
> 
> > -	if (hw->device_id == I40E_DEV_ID_SFP_X722)
> > +	if (hw->device_id == I40E_DEV_ID_SFP_X722 ||
> > +		hw->device_id == I40E_DEV_ID_SFP_I_X722)
> >  		hw->flags &= ~I40E_HW_FLAG_802_1AD_CAPABLE;
> >
> >  	PMD_INIT_LOG(INFO, "FW %d.%d API %d.%d NVM %02d.%02d.%02d
> eetrack
> > %04x",
> > --
> > 2.9.5

As the patch looks OK, I have applied to dpdk-next-net-intel with above comment be captured.

Thanks
Qi