netdev - Re: [PATCH net-next 3/3] net: amd-xgbe: Disable the CDR workaround path for Yellow Carp Devices

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Date:   Mon, 20 Dec 2021 19:23:40 +0530
From:   Raju Rangoju <Raju.Rangoju@....com>
To:     Tom Lendacky <thomas.lendacky@....com>,
        Raju Rangoju <rrangoju@....com>, davem@...emloft.net,
        kuba@...nel.org
Cc:     netdev@...r.kernel.org, Shyam-sundar.S-k@....com,
        Sudheesh.Mavila@....com
Subject: Re: [PATCH net-next 3/3] net: amd-xgbe: Disable the CDR workaround
 path for Yellow Carp Devices



On 17/12/2021 20:00, Tom Lendacky wrote:
> On 12/17/21 5:15 AM, Raju Rangoju wrote:
>> From: Raju Rangoju <Raju.Rangoju@....com>
>>
>> Yellow Carp Ethernet devices do not require
>> Autonegotiation CDR workaround, hence disable the same.
>>
>> Co-developed-by: Shyam Sundar S K <Shyam-sundar.S-k@....com>
>> Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@....com>
>> Signed-off-by: Raju Rangoju <Raju.Rangoju@....com>
>> ---
>>   drivers/net/ethernet/amd/xgbe/xgbe-pci.c | 6 ++++--
>>   1 file changed, 4 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-pci.c 
>> b/drivers/net/ethernet/amd/xgbe/xgbe-pci.c
>> index 39e606c4d653..50ffaf30f3c7 100644
>> --- a/drivers/net/ethernet/amd/xgbe/xgbe-pci.c
>> +++ b/drivers/net/ethernet/amd/xgbe/xgbe-pci.c
>> @@ -281,6 +281,8 @@ static int xgbe_pci_probe(struct pci_dev *pdev, 
>> const struct pci_device_id *id)
>>           } else if (rdev->device == 0x14b5) {
>>               pdata->xpcs_window_def_reg = PCS_V2_YC_WINDOW_DEF;
>>               pdata->xpcs_window_sel_reg = PCS_V2_YC_WINDOW_SELECT;
> 
> Just add a blank line in between here so that the comment stands out a 
> bit more.
> 

Hi Tom, Sure, I'll fix it in next version.

Thanks,
Raju

> Thanks,
> Tom
> 
>> +            /* Yellow Carp devices do not need cdr workaround */
>> +            pdata->vdata->an_cdr_workaround = 0;
>>           }
>>       } else {
>>           pdata->xpcs_window_def_reg = PCS_V2_WINDOW_DEF;
>> @@ -464,7 +466,7 @@ static int __maybe_unused xgbe_pci_resume(struct 
>> device *dev)
>>       return ret;
>>   }
>> -static const struct xgbe_version_data xgbe_v2a = {
>> +static struct xgbe_version_data xgbe_v2a = {
>>       .init_function_ptrs_phy_impl    = xgbe_init_function_ptrs_phy_v2,
>>       .xpcs_access            = XGBE_XPCS_ACCESS_V2,
>>       .mmc_64bit            = 1,
>> @@ -479,7 +481,7 @@ static const struct xgbe_version_data xgbe_v2a = {
>>       .an_cdr_workaround        = 1,
>>   };
>> -static const struct xgbe_version_data xgbe_v2b = {
>> +static struct xgbe_version_data xgbe_v2b = {
>>       .init_function_ptrs_phy_impl    = xgbe_init_function_ptrs_phy_v2,
>>       .xpcs_access            = XGBE_XPCS_ACCESS_V2,
>>       .mmc_64bit            = 1,
>>