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SubjectRe:Re: [PATCH net v2] For default mechanism, product would use default MRU 3500 if they didn't define it. But for Foxconn SDX55, there is a known issue which MRU 3500 would lead to data connection lost. So we align it with Qualcomm default MRU settings.






At 2022-01-17 16:44:32, "Manivannan Sadhasivam" <mani@kernel.org> wrote:
>On Mon, Jan 17, 2022 at 04:16:44PM +0800, Slark Xiao wrote:
>> Fixes: 5c2c85315948 ("bus: mhi: pci-generic: configurable network interface MRU")
>
>You have messed up the patch subject, please fix it. Also, the correct fixes tag
>should be the one added the Foxconn modem support, precisely "aac426562f56".
>
Yes, sorry for this mistake.
>One more thing, please make sure this MRU value works well for other Foxconn
>modems supported by this config.
>
I am sure this would work for all our device. BTW, I want to add this mru_default to
cinterion-mv31 PRODUCT. Shall I use v3 or create a new version for that? It's confirmed
that this change could help fix issue on that product.
>> Signed-off-by: Slark Xiao <slark_xiao@163.com>
>
>You should have added my Reviewed-by tag too...
Shall I add reviewd-by tag if I add changes on MV31 product?
>
>Thanks,
>Mani
>
>>
>> ---
>> v2: Add Fixes tag
>> ---
>> drivers/bus/mhi/pci_generic.c | 1 +
>> 1 file changed, 1 insertion(+)
>>
>> diff --git a/drivers/bus/mhi/pci_generic.c b/drivers/bus/mhi/pci_generic.c
>> index 3a258a677df8..74e8fc342cfd 100644
>> --- a/drivers/bus/mhi/pci_generic.c
>> +++ b/drivers/bus/mhi/pci_generic.c
>> @@ -366,6 +366,7 @@ static const struct mhi_pci_dev_info mhi_foxconn_sdx55_info = {
>> .config = &modem_foxconn_sdx55_config,
>> .bar_num = MHI_PCI_DEFAULT_BAR_NUM,
>> .dma_data_width = 32,
>> + .mru_default = 32768,
>> .sideband_wake = false,
>> };
>>
>> --
>> 2.25.1
>>
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