diff mbox series

[1/7] fpga: wrap the write_init() op

Message ID 20210607172402.2938697-2-trix@redhat.com (mailing list archive)
State New, archived
Headers show
Series fpga: wrappers for fpga_manager_ops | expand

Commit Message

Tom Rix June 7, 2021, 5:23 p.m. UTC
From: Tom Rix <trix@redhat.com>

The board should not be required to provide a
write_init() op if there is nothing for it do.
So add a wrapper and move the op checking.
Default to success.

Signed-off-by: Tom Rix <trix@redhat.com>
---
 drivers/fpga/fpga-mgr.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

Comments

Moritz Fischer June 7, 2021, 10:36 p.m. UTC | #1
On Mon, Jun 07, 2021 at 10:23:56AM -0700, trix@redhat.com wrote:
> From: Tom Rix <trix@redhat.com>
> 
> The board should not be required to provide a
Nit: Can you turn these into for whole series:
A FPGA Manager should not be ...

> write_init() op if there is nothing for it do.
> So add a wrapper and move the op checking.
> Default to success.
> 
> Signed-off-by: Tom Rix <trix@redhat.com>
> ---
>  drivers/fpga/fpga-mgr.c | 14 +++++++++++---
>  1 file changed, 11 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/fpga/fpga-mgr.c b/drivers/fpga/fpga-mgr.c
> index b85bc47c91a9..24547e36a56d 100644
> --- a/drivers/fpga/fpga-mgr.c
> +++ b/drivers/fpga/fpga-mgr.c
> @@ -69,6 +69,14 @@ void fpga_image_info_free(struct fpga_image_info *info)
>  }
>  EXPORT_SYMBOL_GPL(fpga_image_info_free);
>  
> +static int fpga_mgr_write_init(struct fpga_manager *mgr,
> +			       struct fpga_image_info *info,
> +			       const char *buf, size_t count)
> +{
> +	if (mgr->mops && mgr->mops->write_init)
> +		return  mgr->mops->write_init(mgr, info, buf, count);
> +	return 0;
> +}
>  /*
>   * Call the low level driver's write_init function.  This will do the
>   * device-specific things to get the FPGA into the state where it is ready to
> @@ -83,9 +91,9 @@ static int fpga_mgr_write_init_buf(struct fpga_manager *mgr,
>  
>  	mgr->state = FPGA_MGR_STATE_WRITE_INIT;
>  	if (!mgr->mops->initial_header_size)
> -		ret = mgr->mops->write_init(mgr, info, NULL, 0);
> +		ret = fpga_mgr_write_init(mgr, info, NULL, 0);
>  	else
> -		ret = mgr->mops->write_init(
> +		ret = fpga_mgr_write_init(
>  		    mgr, info, buf, min(mgr->mops->initial_header_size, count));
>  
>  	if (ret) {
> @@ -569,7 +577,7 @@ struct fpga_manager *fpga_mgr_create(struct device *dev, const char *name,
>  	int id, ret;
>  
>  	if (!mops || !mops->write_complete || !mops->state ||
> -	    !mops->write_init || (!mops->write && !mops->write_sg) ||
> +	    (!mops->write && !mops->write_sg) ||
>  	    (mops->write && mops->write_sg)) {
>  		dev_err(dev, "Attempt to register without fpga_manager_ops\n");
>  		return NULL;
> -- 
> 2.26.3
> 

Can you change the subjects to "fpga: fpga-mgr: ..."

Otherwise series looks good.

- Moritz
Martin Hundebøll June 8, 2021, 6:23 a.m. UTC | #2
On 08/06/2021 00.36, Moritz Fischer wrote:
> On Mon, Jun 07, 2021 at 10:23:56AM -0700, trix@redhat.com wrote:
>> From: Tom Rix <trix@redhat.com>
>>
>> The board should not be required to provide a
> Nit: Can you turn these into for whole series:
> A FPGA Manager should not be ...

Nit nit: should be:
An FPGA Manager should not be ...

// Martin

> 
>> write_init() op if there is nothing for it do.
>> So add a wrapper and move the op checking.
>> Default to success.
>>
>> Signed-off-by: Tom Rix <trix@redhat.com>
>> ---
>>   drivers/fpga/fpga-mgr.c | 14 +++++++++++---
>>   1 file changed, 11 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/fpga/fpga-mgr.c b/drivers/fpga/fpga-mgr.c
>> index b85bc47c91a9..24547e36a56d 100644
>> --- a/drivers/fpga/fpga-mgr.c
>> +++ b/drivers/fpga/fpga-mgr.c
>> @@ -69,6 +69,14 @@ void fpga_image_info_free(struct fpga_image_info *info)
>>   }
>>   EXPORT_SYMBOL_GPL(fpga_image_info_free);
>>   
>> +static int fpga_mgr_write_init(struct fpga_manager *mgr,
>> +			       struct fpga_image_info *info,
>> +			       const char *buf, size_t count)
>> +{
>> +	if (mgr->mops && mgr->mops->write_init)
>> +		return  mgr->mops->write_init(mgr, info, buf, count);
>> +	return 0;
>> +}
>>   /*
>>    * Call the low level driver's write_init function.  This will do the
>>    * device-specific things to get the FPGA into the state where it is ready to
>> @@ -83,9 +91,9 @@ static int fpga_mgr_write_init_buf(struct fpga_manager *mgr,
>>   
>>   	mgr->state = FPGA_MGR_STATE_WRITE_INIT;
>>   	if (!mgr->mops->initial_header_size)
>> -		ret = mgr->mops->write_init(mgr, info, NULL, 0);
>> +		ret = fpga_mgr_write_init(mgr, info, NULL, 0);
>>   	else
>> -		ret = mgr->mops->write_init(
>> +		ret = fpga_mgr_write_init(
>>   		    mgr, info, buf, min(mgr->mops->initial_header_size, count));
>>   
>>   	if (ret) {
>> @@ -569,7 +577,7 @@ struct fpga_manager *fpga_mgr_create(struct device *dev, const char *name,
>>   	int id, ret;
>>   
>>   	if (!mops || !mops->write_complete || !mops->state ||
>> -	    !mops->write_init || (!mops->write && !mops->write_sg) ||
>> +	    (!mops->write && !mops->write_sg) ||
>>   	    (mops->write && mops->write_sg)) {
>>   		dev_err(dev, "Attempt to register without fpga_manager_ops\n");
>>   		return NULL;
>> -- 
>> 2.26.3
>>
> 
> Can you change the subjects to "fpga: fpga-mgr: ..."
> 
> Otherwise series looks good.
> 
> - Moritz
>
Tom Rix June 8, 2021, 1:55 p.m. UTC | #3
On 6/7/21 3:36 PM, Moritz Fischer wrote:
> On Mon, Jun 07, 2021 at 10:23:56AM -0700, trix@redhat.com wrote:
>> From: Tom Rix <trix@redhat.com>
>>
>> The board should not be required to provide a
> Nit: Can you turn these into for whole series:
> A FPGA Manager should not be ...

ok

>
>> write_init() op if there is nothing for it do.
>> So add a wrapper and move the op checking.
>> Default to success.
>>
>> Signed-off-by: Tom Rix <trix@redhat.com>
>> ---
>>   drivers/fpga/fpga-mgr.c | 14 +++++++++++---
>>   1 file changed, 11 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/fpga/fpga-mgr.c b/drivers/fpga/fpga-mgr.c
>> index b85bc47c91a9..24547e36a56d 100644
>> --- a/drivers/fpga/fpga-mgr.c
>> +++ b/drivers/fpga/fpga-mgr.c
>> @@ -69,6 +69,14 @@ void fpga_image_info_free(struct fpga_image_info *info)
>>   }
>>   EXPORT_SYMBOL_GPL(fpga_image_info_free);
>>   
>> +static int fpga_mgr_write_init(struct fpga_manager *mgr,
>> +			       struct fpga_image_info *info,
>> +			       const char *buf, size_t count)
>> +{
>> +	if (mgr->mops && mgr->mops->write_init)
>> +		return  mgr->mops->write_init(mgr, info, buf, count);
>> +	return 0;
>> +}
>>   /*
>>    * Call the low level driver's write_init function.  This will do the
>>    * device-specific things to get the FPGA into the state where it is ready to
>> @@ -83,9 +91,9 @@ static int fpga_mgr_write_init_buf(struct fpga_manager *mgr,
>>   
>>   	mgr->state = FPGA_MGR_STATE_WRITE_INIT;
>>   	if (!mgr->mops->initial_header_size)
>> -		ret = mgr->mops->write_init(mgr, info, NULL, 0);
>> +		ret = fpga_mgr_write_init(mgr, info, NULL, 0);
>>   	else
>> -		ret = mgr->mops->write_init(
>> +		ret = fpga_mgr_write_init(
>>   		    mgr, info, buf, min(mgr->mops->initial_header_size, count));
>>   
>>   	if (ret) {
>> @@ -569,7 +577,7 @@ struct fpga_manager *fpga_mgr_create(struct device *dev, const char *name,
>>   	int id, ret;
>>   
>>   	if (!mops || !mops->write_complete || !mops->state ||
>> -	    !mops->write_init || (!mops->write && !mops->write_sg) ||
>> +	    (!mops->write && !mops->write_sg) ||
>>   	    (mops->write && mops->write_sg)) {
>>   		dev_err(dev, "Attempt to register without fpga_manager_ops\n");
>>   		return NULL;
>> -- 
>> 2.26.3
>>
> Can you change the subjects to "fpga: fpga-mgr: ..."

ok

I know this varies widely, but..

each 'bla:' is a subdir bla/

In the next patchset to reorganize around a subdir structure, there are 
a few infrastructure files that i think could go into a fpga/fpga-mgr/

fpga-bridge.c  fpga-mgr.c  fpga-region.c  of-fpga-region.c

These are the only unmoved files in the patchset.

I was not sure about moving them so I left them alone.

Tom

>
> Otherwise series looks good.
>
> - Moritz
>
Tom Rix June 8, 2021, 7:05 p.m. UTC | #4
On 6/7/21 11:23 PM, Martin Hundebøll wrote:
>
>
> On 08/06/2021 00.36, Moritz Fischer wrote:
>> On Mon, Jun 07, 2021 at 10:23:56AM -0700, trix@redhat.com wrote:
>>> From: Tom Rix <trix@redhat.com>
>>>
>>> The board should not be required to provide a
>> Nit: Can you turn these into for whole series:
>> A FPGA Manager should not be ...
>
> Nit nit: should be:
> An FPGA Manager should not be ...
>
> // Martin

ok.

I went down a rabbit hole on this one, looks fine.

Tom

>
>>
>>> write_init() op if there is nothing for it do.
>>> So add a wrapper and move the op checking.
>>> Default to success.
>>>
>>> Signed-off-by: Tom Rix <trix@redhat.com>
>>> ---
>>>   drivers/fpga/fpga-mgr.c | 14 +++++++++++---
>>>   1 file changed, 11 insertions(+), 3 deletions(-)
>>>
>>> diff --git a/drivers/fpga/fpga-mgr.c b/drivers/fpga/fpga-mgr.c
>>> index b85bc47c91a9..24547e36a56d 100644
>>> --- a/drivers/fpga/fpga-mgr.c
>>> +++ b/drivers/fpga/fpga-mgr.c
>>> @@ -69,6 +69,14 @@ void fpga_image_info_free(struct fpga_image_info 
>>> *info)
>>>   }
>>>   EXPORT_SYMBOL_GPL(fpga_image_info_free);
>>>   +static int fpga_mgr_write_init(struct fpga_manager *mgr,
>>> +                   struct fpga_image_info *info,
>>> +                   const char *buf, size_t count)
>>> +{
>>> +    if (mgr->mops && mgr->mops->write_init)
>>> +        return  mgr->mops->write_init(mgr, info, buf, count);
>>> +    return 0;
>>> +}
>>>   /*
>>>    * Call the low level driver's write_init function.  This will do the
>>>    * device-specific things to get the FPGA into the state where it 
>>> is ready to
>>> @@ -83,9 +91,9 @@ static int fpga_mgr_write_init_buf(struct 
>>> fpga_manager *mgr,
>>>         mgr->state = FPGA_MGR_STATE_WRITE_INIT;
>>>       if (!mgr->mops->initial_header_size)
>>> -        ret = mgr->mops->write_init(mgr, info, NULL, 0);
>>> +        ret = fpga_mgr_write_init(mgr, info, NULL, 0);
>>>       else
>>> -        ret = mgr->mops->write_init(
>>> +        ret = fpga_mgr_write_init(
>>>               mgr, info, buf, min(mgr->mops->initial_header_size, 
>>> count));
>>>         if (ret) {
>>> @@ -569,7 +577,7 @@ struct fpga_manager *fpga_mgr_create(struct 
>>> device *dev, const char *name,
>>>       int id, ret;
>>>         if (!mops || !mops->write_complete || !mops->state ||
>>> -        !mops->write_init || (!mops->write && !mops->write_sg) ||
>>> +        (!mops->write && !mops->write_sg) ||
>>>           (mops->write && mops->write_sg)) {
>>>           dev_err(dev, "Attempt to register without 
>>> fpga_manager_ops\n");
>>>           return NULL;
>>> -- 
>>> 2.26.3
>>>
>>
>> Can you change the subjects to "fpga: fpga-mgr: ..."
>>
>> Otherwise series looks good.
>>
>> - Moritz
>>
>
diff mbox series

Patch

diff --git a/drivers/fpga/fpga-mgr.c b/drivers/fpga/fpga-mgr.c
index b85bc47c91a9..24547e36a56d 100644
--- a/drivers/fpga/fpga-mgr.c
+++ b/drivers/fpga/fpga-mgr.c
@@ -69,6 +69,14 @@  void fpga_image_info_free(struct fpga_image_info *info)
 }
 EXPORT_SYMBOL_GPL(fpga_image_info_free);
 
+static int fpga_mgr_write_init(struct fpga_manager *mgr,
+			       struct fpga_image_info *info,
+			       const char *buf, size_t count)
+{
+	if (mgr->mops && mgr->mops->write_init)
+		return  mgr->mops->write_init(mgr, info, buf, count);
+	return 0;
+}
 /*
  * Call the low level driver's write_init function.  This will do the
  * device-specific things to get the FPGA into the state where it is ready to
@@ -83,9 +91,9 @@  static int fpga_mgr_write_init_buf(struct fpga_manager *mgr,
 
 	mgr->state = FPGA_MGR_STATE_WRITE_INIT;
 	if (!mgr->mops->initial_header_size)
-		ret = mgr->mops->write_init(mgr, info, NULL, 0);
+		ret = fpga_mgr_write_init(mgr, info, NULL, 0);
 	else
-		ret = mgr->mops->write_init(
+		ret = fpga_mgr_write_init(
 		    mgr, info, buf, min(mgr->mops->initial_header_size, count));
 
 	if (ret) {
@@ -569,7 +577,7 @@  struct fpga_manager *fpga_mgr_create(struct device *dev, const char *name,
 	int id, ret;
 
 	if (!mops || !mops->write_complete || !mops->state ||
-	    !mops->write_init || (!mops->write && !mops->write_sg) ||
+	    (!mops->write && !mops->write_sg) ||
 	    (mops->write && mops->write_sg)) {
 		dev_err(dev, "Attempt to register without fpga_manager_ops\n");
 		return NULL;