Hi Paul and Jake,
Please see inline.
> On Nov 1, 2024, at 11:53 PM, Paul Menzel <pmen...@molgen.mpg.de> wrote:
>
> Dear Jacob,
>
>
> Thank you for the patch.
>
> Am 02.11.24 um 00:05 schrieb Jacob Keller:
>> The ixgbe PF driver logs an info message when a VF attempts to negotiate an
>> API version which it does not support:
>> VF 0 requested invalid api version 6
>> The ixgbevf driver attempts to load with mailbox API v1.5, which is
>> required for best compatibility with other hosts such as the ESX VMWare PF.
>> The Linux PF only supports API v1.4, and does not currently have support
>> for the v1.5 API.
>> The logged message can confuse users, as the v1.5 API is valid, but just
>> happens to not currently be supported by the Linux PF.
>> Downgrade the info message to a debug message, and fix the language to
>> use 'unsupported' instead of 'invalid' to improve message clarity.
>> Long term, we should investigate whether the improvements in the v1.5 API
>> make sense for the Linux PF, and if so implement them properly. This may
>> require yet another API version to resolve issues with negotiating IPSEC
>> offload support.
>
> It’d be great if you described the exact test setup for how to reproduce it.
It could be easily reproduced by running
echo 1 > /sys/class/net/<NIC name>device/sriov_numvfs
>
>> Reported-by: Yifei Liu <yifei.l....@oracle.com>
>
> Do you have an Link: for this report?
Hope this link could help:
https://patchwork.kernel.org/project/netdevbpf/patch/20240301235837.3741422-1-yifei.l....@oracle.com/
>
>> Signed-off-by: Jacob Keller <jacob.e.kel...@intel.com>
>> Reviewed-by: Przemek Kitszel <przemyslaw.kits...@intel.com>
>> ---
>> drivers/net/ethernet/intel/ixgbe/ixgbe_common.h | 2 ++
>> drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c | 2 +-
>> 2 files changed, 3 insertions(+), 1 deletion(-)
>> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.h
>> b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.h
>> index 6493abf189de..6639069ad528 100644
>> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.h
>> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.h
>> @@ -194,6 +194,8 @@ u32 ixgbe_read_reg(struct ixgbe_hw *hw, u32 reg);
>> dev_err(&adapter->pdev->dev, format, ## arg)
>> #define e_dev_notice(format, arg...) \
>> dev_notice(&adapter->pdev->dev, format, ## arg)
>> +#define e_dbg(msglvl, format, arg...) \
>> + netif_dbg(adapter, msglvl, adapter->netdev, format, ## arg)
>> #define e_info(msglvl, format, arg...) \
>> netif_info(adapter, msglvl, adapter->netdev, format, ## arg)
>> #define e_err(msglvl, format, arg...) \
>> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
>> b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
>> index e71715f5da22..20415c1238ef 100644
>> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
>> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
>> @@ -1047,7 +1047,7 @@ static int ixgbe_negotiate_vf_api(struct ixgbe_adapter
>> *adapter,
>> break;
>> }
>> - e_info(drv, "VF %d requested invalid api version %u\n", vf, api);
>> + e_dbg(drv, "VF %d requested unsupported api version %u\n", vf, api);
>
> Is there a way to translate `api` to the API version scheme used in the
> commit message? So, 1.5 instead of 6? Maybe also add, that only the v1.4 API
> is supported?
>
>> return -1;
>> }
>
>
> Kind regards,
>
> Paul
Thanks
Yifei
