2021-06-07 17:26:35

by Tom Rix

[permalink] [raw]
Subject: [PATCH 1/7] fpga: wrap the write_init() op

From: Tom Rix <[email protected]>

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 <[email protected]>
---
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


2021-06-07 22:39:49

by Moritz Fischer

[permalink] [raw]
Subject: Re: [PATCH 1/7] fpga: wrap the write_init() op

On Mon, Jun 07, 2021 at 10:23:56AM -0700, [email protected] wrote:
> From: Tom Rix <[email protected]>
>
> 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 <[email protected]>
> ---
> 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

2021-06-08 06:25:07

by Martin Hundebøll

[permalink] [raw]
Subject: Re: [PATCH 1/7] fpga: wrap the write_init() op



On 08/06/2021 00.36, Moritz Fischer wrote:
> On Mon, Jun 07, 2021 at 10:23:56AM -0700, [email protected] wrote:
>> From: Tom Rix <[email protected]>
>>
>> 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 <[email protected]>
>> ---
>> 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
>

2021-06-08 19:21:56

by Tom Rix

[permalink] [raw]
Subject: Re: [PATCH 1/7] fpga: wrap the write_init() op


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, [email protected] wrote:
>>> From: Tom Rix <[email protected]>
>>>
>>> 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 <[email protected]>
>>> ---
>>>   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
>>
>

2021-06-09 02:57:22

by Tom Rix

[permalink] [raw]
Subject: Re: [PATCH 1/7] fpga: wrap the write_init() op


On 6/7/21 3:36 PM, Moritz Fischer wrote:
> On Mon, Jun 07, 2021 at 10:23:56AM -0700, [email protected] wrote:
>> From: Tom Rix <[email protected]>
>>
>> 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 <[email protected]>
>> ---
>> 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
>