diff mbox series

[v1,1/2] bus: mhi: host: Import link_id item

Message ID 20240607100114.452979-1-slark_xiao@163.com
State New
Headers show
Series [v1,1/2] bus: mhi: host: Import link_id item | expand

Commit Message

Slark Xiao June 7, 2024, 10:01 a.m. UTC
For SDX72 MBIM mode, it starts data mux id from 112 instead of 0.
This would lead to device can't ping outside successfully.
Also MBIM side would report "bad packet session (112)".
So we add a link id default value for SDX72.

Signed-off-by: Slark Xiao <slark_xiao@163.com>
---
 drivers/bus/mhi/host/pci_generic.c | 3 +++
 include/linux/mhi.h                | 1 +
 2 files changed, 4 insertions(+)

Comments

Slark Xiao June 11, 2024, 1:24 a.m. UTC | #1
+More maintainer to this first patch list.

At 2024-06-07 23:01:00, "Jeffrey Hugo" <quic_jhugo@quicinc.com> wrote:
>$Subject says this is patch 1 of 2, but I don't see a second patch nor a 
>cover letter.
>
>On 6/7/2024 4:01 AM, Slark Xiao wrote:
>> For SDX72 MBIM mode, it starts data mux id from 112 instead of 0.
>> This would lead to device can't ping outside successfully.
>> Also MBIM side would report "bad packet session (112)".
>> So we add a link id default value for SDX72.
>> 
>> Signed-off-by: Slark Xiao <slark_xiao@163.com>
>> ---
>>   drivers/bus/mhi/host/pci_generic.c | 3 +++
>>   include/linux/mhi.h                | 1 +
>>   2 files changed, 4 insertions(+)
>> 
>> diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c
>> index 0b483c7c76a1..1f9de2730766 100644
>> --- a/drivers/bus/mhi/host/pci_generic.c
>> +++ b/drivers/bus/mhi/host/pci_generic.c
>> @@ -53,6 +53,7 @@ struct mhi_pci_dev_info {
>>   	unsigned int dma_data_width;
>>   	unsigned int mru_default;
>>   	bool sideband_wake;
>> +	unsigned int link_default;
>>   };
>>   
>>   #define MHI_CHANNEL_CONFIG_UL(ch_num, ch_name, el_count, ev_ring) \
>> @@ -469,6 +470,7 @@ static const struct mhi_pci_dev_info mhi_foxconn_sdx72_info = {
>>   	.dma_data_width = 32,
>>   	.mru_default = 32768,
>>   	.sideband_wake = false,
>> +	.link_default = 112,
>>   };
>>   
>>   static const struct mhi_channel_config mhi_mv3x_channels[] = {
>> @@ -1035,6 +1037,7 @@ static int mhi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
>>   	mhi_cntrl->runtime_get = mhi_pci_runtime_get;
>>   	mhi_cntrl->runtime_put = mhi_pci_runtime_put;
>>   	mhi_cntrl->mru = info->mru_default;
>> +	mhi_cntrl->link_id = info->link_default;
>>   
>>   	if (info->edl_trigger)
>>   		mhi_cntrl->edl_trigger = mhi_pci_generic_edl_trigger;
>> diff --git a/include/linux/mhi.h b/include/linux/mhi.h
>> index b573f15762f8..4da10b99c96e 100644
>> --- a/include/linux/mhi.h
>> +++ b/include/linux/mhi.h
>> @@ -445,6 +445,7 @@ struct mhi_controller {
>>   	bool wake_set;
>>   	unsigned long irq_flags;
>>   	u32 mru;
>> +	u32 link_id;
>>   };
>>   
>>   /**
>
>None of this is actually used.  Dead code is generally not accepted.
>
>-Jeff
Slark Xiao June 11, 2024, 1:45 a.m. UTC | #2
At 2024-06-11 09:24:07, "Slark Xiao" <slark_xiao@163.com> wrote:
>
>+More maintainer to this first patch list.
>
>At 2024-06-07 23:01:00, "Jeffrey Hugo" <quic_jhugo@quicinc.com> wrote:
>>$Subject says this is patch 1 of 2, but I don't see a second patch nor a 
>>cover letter.
>>
Hi Jeffrey,
I added you in another patch just now. Please help take a view on that.
Thanks.

>>On 6/7/2024 4:01 AM, Slark Xiao wrote:
>>> For SDX72 MBIM mode, it starts data mux id from 112 instead of 0.
>>> This would lead to device can't ping outside successfully.
>>> Also MBIM side would report "bad packet session (112)".
>>> So we add a link id default value for SDX72.
>>> 
>>> Signed-off-by: Slark Xiao <slark_xiao@163.com>
>>> ---
>>>   drivers/bus/mhi/host/pci_generic.c | 3 +++
>>>   include/linux/mhi.h                | 1 +
>>>   2 files changed, 4 insertions(+)
>>> 
>>> diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c
>>> index 0b483c7c76a1..1f9de2730766 100644
>>> --- a/drivers/bus/mhi/host/pci_generic.c
>>> +++ b/drivers/bus/mhi/host/pci_generic.c
>>> @@ -53,6 +53,7 @@ struct mhi_pci_dev_info {
>>>   	unsigned int dma_data_width;
>>>   	unsigned int mru_default;
>>>   	bool sideband_wake;
>>> +	unsigned int link_default;
>>>   };
>>>   
>>>   #define MHI_CHANNEL_CONFIG_UL(ch_num, ch_name, el_count, ev_ring) \
>>> @@ -469,6 +470,7 @@ static const struct mhi_pci_dev_info mhi_foxconn_sdx72_info = {
>>>   	.dma_data_width = 32,
>>>   	.mru_default = 32768,
>>>   	.sideband_wake = false,
>>> +	.link_default = 112,
>>>   };
>>>   
>>>   static const struct mhi_channel_config mhi_mv3x_channels[] = {
>>> @@ -1035,6 +1037,7 @@ static int mhi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
>>>   	mhi_cntrl->runtime_get = mhi_pci_runtime_get;
>>>   	mhi_cntrl->runtime_put = mhi_pci_runtime_put;
>>>   	mhi_cntrl->mru = info->mru_default;
>>> +	mhi_cntrl->link_id = info->link_default;
>>>   
>>>   	if (info->edl_trigger)
>>>   		mhi_cntrl->edl_trigger = mhi_pci_generic_edl_trigger;
>>> diff --git a/include/linux/mhi.h b/include/linux/mhi.h
>>> index b573f15762f8..4da10b99c96e 100644
>>> --- a/include/linux/mhi.h
>>> +++ b/include/linux/mhi.h
>>> @@ -445,6 +445,7 @@ struct mhi_controller {
>>>   	bool wake_set;
>>>   	unsigned long irq_flags;
>>>   	u32 mru;
>>> +	u32 link_id;
>>>   };
>>>   
>>>   /**
>>
>>None of this is actually used.  Dead code is generally not accepted.
>>
>>-Jeff
Manivannan Sadhasivam June 12, 2024, 4:33 a.m. UTC | #3
On Fri, Jun 07, 2024 at 06:01:14PM +0800, Slark Xiao wrote:
> For SDX72 MBIM mode, it starts data mux id from 112 instead of 0.
> This would lead to device can't ping outside successfully.
> Also MBIM side would report "bad packet session (112)".
> So we add a link id default value for SDX72.
> 

link_id is WWAN specific. But what you are passing is essentially 'mux_id', so
just use the actual name.

> Signed-off-by: Slark Xiao <slark_xiao@163.com>
> ---
>  drivers/bus/mhi/host/pci_generic.c | 3 +++
>  include/linux/mhi.h                | 1 +
>  2 files changed, 4 insertions(+)
> 
> diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c
> index 0b483c7c76a1..1f9de2730766 100644
> --- a/drivers/bus/mhi/host/pci_generic.c
> +++ b/drivers/bus/mhi/host/pci_generic.c
> @@ -53,6 +53,7 @@ struct mhi_pci_dev_info {
>  	unsigned int dma_data_width;
>  	unsigned int mru_default;
>  	bool sideband_wake;
> +	unsigned int link_default;
>  };
>  
>  #define MHI_CHANNEL_CONFIG_UL(ch_num, ch_name, el_count, ev_ring) \
> @@ -469,6 +470,7 @@ static const struct mhi_pci_dev_info mhi_foxconn_sdx72_info = {
>  	.dma_data_width = 32,
>  	.mru_default = 32768,
>  	.sideband_wake = false,
> +	.link_default = 112,

Just use 'mux_id' here also.

>  };
>  
>  static const struct mhi_channel_config mhi_mv3x_channels[] = {
> @@ -1035,6 +1037,7 @@ static int mhi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
>  	mhi_cntrl->runtime_get = mhi_pci_runtime_get;
>  	mhi_cntrl->runtime_put = mhi_pci_runtime_put;
>  	mhi_cntrl->mru = info->mru_default;
> +	mhi_cntrl->link_id = info->link_default;
>  
>  	if (info->edl_trigger)
>  		mhi_cntrl->edl_trigger = mhi_pci_generic_edl_trigger;
> diff --git a/include/linux/mhi.h b/include/linux/mhi.h
> index b573f15762f8..4da10b99c96e 100644
> --- a/include/linux/mhi.h
> +++ b/include/linux/mhi.h
> @@ -445,6 +445,7 @@ struct mhi_controller {
>  	bool wake_set;
>  	unsigned long irq_flags;
>  	u32 mru;
> +	u32 link_id;

Add kdoc comment.

- Mani
diff mbox series

Patch

diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c
index 0b483c7c76a1..1f9de2730766 100644
--- a/drivers/bus/mhi/host/pci_generic.c
+++ b/drivers/bus/mhi/host/pci_generic.c
@@ -53,6 +53,7 @@  struct mhi_pci_dev_info {
 	unsigned int dma_data_width;
 	unsigned int mru_default;
 	bool sideband_wake;
+	unsigned int link_default;
 };
 
 #define MHI_CHANNEL_CONFIG_UL(ch_num, ch_name, el_count, ev_ring) \
@@ -469,6 +470,7 @@  static const struct mhi_pci_dev_info mhi_foxconn_sdx72_info = {
 	.dma_data_width = 32,
 	.mru_default = 32768,
 	.sideband_wake = false,
+	.link_default = 112,
 };
 
 static const struct mhi_channel_config mhi_mv3x_channels[] = {
@@ -1035,6 +1037,7 @@  static int mhi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	mhi_cntrl->runtime_get = mhi_pci_runtime_get;
 	mhi_cntrl->runtime_put = mhi_pci_runtime_put;
 	mhi_cntrl->mru = info->mru_default;
+	mhi_cntrl->link_id = info->link_default;
 
 	if (info->edl_trigger)
 		mhi_cntrl->edl_trigger = mhi_pci_generic_edl_trigger;
diff --git a/include/linux/mhi.h b/include/linux/mhi.h
index b573f15762f8..4da10b99c96e 100644
--- a/include/linux/mhi.h
+++ b/include/linux/mhi.h
@@ -445,6 +445,7 @@  struct mhi_controller {
 	bool wake_set;
 	unsigned long irq_flags;
 	u32 mru;
+	u32 link_id;
 };
 
 /**