* [PATCHv2] fpga: stratix10-soc: remove the pre-set reconfiguration condition
@ 2020-05-15 14:35 richard.gong
2020-05-29 13:15 ` Richard Gong
0 siblings, 1 reply; 5+ messages in thread
From: richard.gong @ 2020-05-15 14:35 UTC (permalink / raw)
To: mdf; +Cc: linux-fpga, linux-kernel, dinguyen, richard.gong, Richard Gong
From: Richard Gong <richard.gong@intel.com>
The reconfiguration mode is pre-set by driver as the full reconfiguration.
As a result, user have to change code and recompile the drivers if he or
she wants to perform a partial reconfiguration. Removing the pre-set
reconfiguration condition so that user can select full or partial
reconfiguration via overlay device tree without recompiling the drivers.
Also add an error message if the configuration request is failure.
Signed-off-by: Richard Gong <richard.gong@intel.com>
---
v2: define and use constant values
---
drivers/fpga/stratix10-soc.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/fpga/stratix10-soc.c b/drivers/fpga/stratix10-soc.c
index 44b7c56..4d52a80 100644
--- a/drivers/fpga/stratix10-soc.c
+++ b/drivers/fpga/stratix10-soc.c
@@ -14,9 +14,13 @@
/*
* FPGA programming requires a higher level of privilege (EL3), per the SoC
* design.
+ * SoC firmware supports full and partial reconfiguration.
*/
#define NUM_SVC_BUFS 4
#define SVC_BUF_SIZE SZ_512K
+#define FULL_RECONFIG_FLAG 0
+#define PARTIAL_RECONFIG_FLAG 1
+
/* Indicates buffer is in use if set */
#define SVC_BUF_LOCK 0
@@ -182,12 +186,12 @@ static int s10_ops_write_init(struct fpga_manager *mgr,
uint i;
int ret;
- ctype.flags = 0;
if (info->flags & FPGA_MGR_PARTIAL_RECONFIG) {
dev_dbg(dev, "Requesting partial reconfiguration.\n");
- ctype.flags |= BIT(COMMAND_RECONFIG_FLAG_PARTIAL);
+ ctype.flags = PARTIAL_RECONFIG_FLAG;
} else {
dev_dbg(dev, "Requesting full reconfiguration.\n");
+ ctype.flags = FULL_RECONFIG_FLAG;
}
reinit_completion(&priv->status_return_completion);
@@ -210,6 +214,7 @@ static int s10_ops_write_init(struct fpga_manager *mgr,
ret = 0;
if (!test_and_clear_bit(SVC_STATUS_OK, &priv->status)) {
+ dev_err(dev, "RECONFIG_REQUEST failed\n");
ret = -ETIMEDOUT;
goto init_done;
}
--
2.7.4
^ permalink raw reply related [flat|nested] 5+ messages in thread* Re: [PATCHv2] fpga: stratix10-soc: remove the pre-set reconfiguration condition
2020-05-15 14:35 [PATCHv2] fpga: stratix10-soc: remove the pre-set reconfiguration condition richard.gong
@ 2020-05-29 13:15 ` Richard Gong
2020-05-29 16:18 ` Russ Weight
2020-05-31 19:49 ` Moritz Fischer
0 siblings, 2 replies; 5+ messages in thread
From: Richard Gong @ 2020-05-29 13:15 UTC (permalink / raw)
To: mdf; +Cc: linux-fpga, linux-kernel, dinguyen, Richard Gong
Hi Moritz,
Sorry for asking.
When you get chance, can you review my version 2 patch submitted on
05/15/20?
Regards,
Richard
On 5/15/20 9:35 AM, richard.gong@linux.intel.com wrote:
> From: Richard Gong <richard.gong@intel.com>
>
> The reconfiguration mode is pre-set by driver as the full reconfiguration.
> As a result, user have to change code and recompile the drivers if he or
> she wants to perform a partial reconfiguration. Removing the pre-set
> reconfiguration condition so that user can select full or partial
> reconfiguration via overlay device tree without recompiling the drivers.
>
> Also add an error message if the configuration request is failure.
>
> Signed-off-by: Richard Gong <richard.gong@intel.com>
> ---
> v2: define and use constant values
> ---
> drivers/fpga/stratix10-soc.c | 9 +++++++--
> 1 file changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/fpga/stratix10-soc.c b/drivers/fpga/stratix10-soc.c
> index 44b7c56..4d52a80 100644
> --- a/drivers/fpga/stratix10-soc.c
> +++ b/drivers/fpga/stratix10-soc.c
> @@ -14,9 +14,13 @@
> /*
> * FPGA programming requires a higher level of privilege (EL3), per the SoC
> * design.
> + * SoC firmware supports full and partial reconfiguration.
> */
> #define NUM_SVC_BUFS 4
> #define SVC_BUF_SIZE SZ_512K
> +#define FULL_RECONFIG_FLAG 0
> +#define PARTIAL_RECONFIG_FLAG 1
> +
>
> /* Indicates buffer is in use if set */
> #define SVC_BUF_LOCK 0
> @@ -182,12 +186,12 @@ static int s10_ops_write_init(struct fpga_manager *mgr,
> uint i;
> int ret;
>
> - ctype.flags = 0;
> if (info->flags & FPGA_MGR_PARTIAL_RECONFIG) {
> dev_dbg(dev, "Requesting partial reconfiguration.\n");
> - ctype.flags |= BIT(COMMAND_RECONFIG_FLAG_PARTIAL);
> + ctype.flags = PARTIAL_RECONFIG_FLAG;
> } else {
> dev_dbg(dev, "Requesting full reconfiguration.\n");
> + ctype.flags = FULL_RECONFIG_FLAG;
> }
>
> reinit_completion(&priv->status_return_completion);
> @@ -210,6 +214,7 @@ static int s10_ops_write_init(struct fpga_manager *mgr,
>
> ret = 0;
> if (!test_and_clear_bit(SVC_STATUS_OK, &priv->status)) {
> + dev_err(dev, "RECONFIG_REQUEST failed\n");
> ret = -ETIMEDOUT;
> goto init_done;
> }
>
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [PATCHv2] fpga: stratix10-soc: remove the pre-set reconfiguration condition
2020-05-29 13:15 ` Richard Gong
@ 2020-05-29 16:18 ` Russ Weight
2020-05-31 19:49 ` Moritz Fischer
1 sibling, 0 replies; 5+ messages in thread
From: Russ Weight @ 2020-05-29 16:18 UTC (permalink / raw)
To: Richard Gong, mdf; +Cc: linux-fpga, linux-kernel, dinguyen, Richard Gong
Minor comment below.
- Russ
On 5/29/20 6:15 AM, Richard Gong wrote:
> Hi Moritz,
>
> Sorry for asking.
>
> When you get chance, can you review my version 2 patch submitted on
> 05/15/20?
>
> Regards,
> Richard
>
> On 5/15/20 9:35 AM, richard.gong@linux.intel.com wrote:
>> From: Richard Gong <richard.gong@intel.com>
>>
>> The reconfiguration mode is pre-set by driver as the full
>> reconfiguration.
>> As a result, user have to change code and recompile the drivers if he or
>> she wants to perform a partial reconfiguration. Removing the pre-set
>> reconfiguration condition so that user can select full or partial
>> reconfiguration via overlay device tree without recompiling the drivers.
>>
>> Also add an error message if the configuration request is failure.
s/is failure/fails/
>>
>> Signed-off-by: Richard Gong <richard.gong@intel.com>
>> ---
>> v2: define and use constant values
>> ---
>> drivers/fpga/stratix10-soc.c | 9 +++++++--
>> 1 file changed, 7 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/fpga/stratix10-soc.c b/drivers/fpga/stratix10-soc.c
>> index 44b7c56..4d52a80 100644
>> --- a/drivers/fpga/stratix10-soc.c
>> +++ b/drivers/fpga/stratix10-soc.c
>> @@ -14,9 +14,13 @@
>> /*
>> * FPGA programming requires a higher level of privilege (EL3), per
>> the SoC
>> * design.
>> + * SoC firmware supports full and partial reconfiguration.
>> */
>> #define NUM_SVC_BUFS 4
>> #define SVC_BUF_SIZE SZ_512K
>> +#define FULL_RECONFIG_FLAG 0
>> +#define PARTIAL_RECONFIG_FLAG 1
>> +
>> /* Indicates buffer is in use if set */
>> #define SVC_BUF_LOCK 0
>> @@ -182,12 +186,12 @@ static int s10_ops_write_init(struct
>> fpga_manager *mgr,
>> uint i;
>> int ret;
>> - ctype.flags = 0;
>> if (info->flags & FPGA_MGR_PARTIAL_RECONFIG) {
>> dev_dbg(dev, "Requesting partial reconfiguration.\n");
>> - ctype.flags |= BIT(COMMAND_RECONFIG_FLAG_PARTIAL);
>> + ctype.flags = PARTIAL_RECONFIG_FLAG;
>> } else {
>> dev_dbg(dev, "Requesting full reconfiguration.\n");
>> + ctype.flags = FULL_RECONFIG_FLAG;
>> }
>> reinit_completion(&priv->status_return_completion);
>> @@ -210,6 +214,7 @@ static int s10_ops_write_init(struct fpga_manager
>> *mgr,
>> ret = 0;
>> if (!test_and_clear_bit(SVC_STATUS_OK, &priv->status)) {
>> + dev_err(dev, "RECONFIG_REQUEST failed\n");
>> ret = -ETIMEDOUT;
>> goto init_done;
>> }
>>
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [PATCHv2] fpga: stratix10-soc: remove the pre-set reconfiguration condition
2020-05-29 13:15 ` Richard Gong
2020-05-29 16:18 ` Russ Weight
@ 2020-05-31 19:49 ` Moritz Fischer
2020-06-01 14:44 ` Richard Gong
1 sibling, 1 reply; 5+ messages in thread
From: Moritz Fischer @ 2020-05-31 19:49 UTC (permalink / raw)
To: Richard Gong; +Cc: mdf, linux-fpga, linux-kernel, dinguyen, Richard Gong
On Fri, May 29, 2020 at 08:15:15AM -0500, Richard Gong wrote:
> Hi Moritz,
>
> Sorry for asking.
>
> When you get chance, can you review my version 2 patch submitted on
> 05/15/20?
>
> Regards,
> Richard
>
> On 5/15/20 9:35 AM, richard.gong@linux.intel.com wrote:
> > From: Richard Gong <richard.gong@intel.com>
> >
> > The reconfiguration mode is pre-set by driver as the full reconfiguration.
> > As a result, user have to change code and recompile the drivers if he or
> > she wants to perform a partial reconfiguration. Removing the pre-set
> > reconfiguration condition so that user can select full or partial
> > reconfiguration via overlay device tree without recompiling the drivers.
Can you help me understand? See comment below, I'm not sure how this
change changes the behavior.
> >
> > Also add an error message if the configuration request is failure.
> >
> > Signed-off-by: Richard Gong <richard.gong@intel.com>
> > ---
> > v2: define and use constant values
> > ---
> > drivers/fpga/stratix10-soc.c | 9 +++++++--
> > 1 file changed, 7 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/fpga/stratix10-soc.c b/drivers/fpga/stratix10-soc.c
> > index 44b7c56..4d52a80 100644
> > --- a/drivers/fpga/stratix10-soc.c
> > +++ b/drivers/fpga/stratix10-soc.c
> > @@ -14,9 +14,13 @@
> > /*
> > * FPGA programming requires a higher level of privilege (EL3), per the SoC
> > * design.
> > + * SoC firmware supports full and partial reconfiguration.
Consider:
"The SoC firmware supports full and partial reconfiguration."
> > */
> > #define NUM_SVC_BUFS 4
> > #define SVC_BUF_SIZE SZ_512K
> > +#define FULL_RECONFIG_FLAG 0
> > +#define PARTIAL_RECONFIG_FLAG 1
> > +
> > /* Indicates buffer is in use if set */
> > #define SVC_BUF_LOCK 0
> > @@ -182,12 +186,12 @@ static int s10_ops_write_init(struct fpga_manager *mgr,
> > uint i;
> > int ret;
> > - ctype.flags = 0;
> > if (info->flags & FPGA_MGR_PARTIAL_RECONFIG) {
> > dev_dbg(dev, "Requesting partial reconfiguration.\n");
> > - ctype.flags |= BIT(COMMAND_RECONFIG_FLAG_PARTIAL);
> > + ctype.flags = PARTIAL_RECONFIG_FLAG;
> > } else {
> > dev_dbg(dev, "Requesting full reconfiguration.\n");
> > + ctype.flags = FULL_RECONFIG_FLAG;
> > }
Am I missing something here: Doesn't this do the same as before?
Before:
If info->flags & FPGA_MGR_PARTIAL_RECONFIG -> ctype.flags = 0 |
BIT(COMMAND_RECONFIG_FLAG_PARTIAL) -> 1
and ctype->flags = FULL_RECONFIG -> 0 else.
Now:
If info->flags & FPGA_MGR_PARTIAL_RECONFIG -> ctype.flags = PARTIAL_RECONFIG_FLAG -> 1
ctype->flags = FULL_REECONFIG_FLAG -> 0 else.
Am I missing something here? If I don't set the flag for partial
reconfig I'd end up with full reconfiguration in both cases?
If I do set the flag, I get partial reconfiguration in both cases?
> > reinit_completion(&priv->status_return_completion);
> > @@ -210,6 +214,7 @@ static int s10_ops_write_init(struct fpga_manager *mgr,
> > ret = 0;
> > if (!test_and_clear_bit(SVC_STATUS_OK, &priv->status)) {
> > + dev_err(dev, "RECONFIG_REQUEST failed\n");
> > ret = -ETIMEDOUT;
> > goto init_done;
> > }
> >
Thanks,
Moritz
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [PATCHv2] fpga: stratix10-soc: remove the pre-set reconfiguration condition
2020-05-31 19:49 ` Moritz Fischer
@ 2020-06-01 14:44 ` Richard Gong
0 siblings, 0 replies; 5+ messages in thread
From: Richard Gong @ 2020-06-01 14:44 UTC (permalink / raw)
To: Moritz Fischer; +Cc: linux-fpga, linux-kernel, dinguyen, Richard Gong
Hi Moritz,
On 5/31/20 2:49 PM, Moritz Fischer wrote:
> On Fri, May 29, 2020 at 08:15:15AM -0500, Richard Gong wrote:
>> Hi Moritz,
>>
>> Sorry for asking.
>>
>> When you get chance, can you review my version 2 patch submitted on
>> 05/15/20?
>>
>> Regards,
>> Richard
>>
>> On 5/15/20 9:35 AM, richard.gong@linux.intel.com wrote:
>>> From: Richard Gong <richard.gong@intel.com>
>>>
>>> The reconfiguration mode is pre-set by driver as the full reconfiguration.
>>> As a result, user have to change code and recompile the drivers if he or
>>> she wants to perform a partial reconfiguration. Removing the pre-set
>>> reconfiguration condition so that user can select full or partial
>>> reconfiguration via overlay device tree without recompiling the drivers.
>
> Can you help me understand? See comment below, I'm not sure how this
> change changes the behavior.
Flag COMMAND_RECONFIG_FLAG_PARTIAL is defined in Intel service layer
driver (include/linux/firmware/intel/stratix10-svc-client.h) and the
default value is zero. It is obvious that COMMAND_RECONFIG_FLAG_PARTIAL
should be set to 1 to support partial reconfiguration.
Please discard this FPGA patch, I will submit a patch on Intel service
layer driver.
Regards,
Richard
>>>
>>> Also add an error message if the configuration request is failure.
>>>
>>> Signed-off-by: Richard Gong <richard.gong@intel.com>
>>> ---
>>> v2: define and use constant values
>>> ---
>>> drivers/fpga/stratix10-soc.c | 9 +++++++--
>>> 1 file changed, 7 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/drivers/fpga/stratix10-soc.c b/drivers/fpga/stratix10-soc.c
>>> index 44b7c56..4d52a80 100644
>>> --- a/drivers/fpga/stratix10-soc.c
>>> +++ b/drivers/fpga/stratix10-soc.c
>>> @@ -14,9 +14,13 @@
>>> /*
>>> * FPGA programming requires a higher level of privilege (EL3), per the SoC
>>> * design.
>>> + * SoC firmware supports full and partial reconfiguration.
> Consider:
> "The SoC firmware supports full and partial reconfiguration."
>>> */
>>> #define NUM_SVC_BUFS 4
>>> #define SVC_BUF_SIZE SZ_512K
>>> +#define FULL_RECONFIG_FLAG 0
>>> +#define PARTIAL_RECONFIG_FLAG 1
>>> +
>>> /* Indicates buffer is in use if set */
>>> #define SVC_BUF_LOCK 0
>>> @@ -182,12 +186,12 @@ static int s10_ops_write_init(struct fpga_manager *mgr,
>>> uint i;
>>> int ret;
>>> - ctype.flags = 0;
>>> if (info->flags & FPGA_MGR_PARTIAL_RECONFIG) {
>>> dev_dbg(dev, "Requesting partial reconfiguration.\n");
>>> - ctype.flags |= BIT(COMMAND_RECONFIG_FLAG_PARTIAL);
>>> + ctype.flags = PARTIAL_RECONFIG_FLAG;
>>> } else {
>>> dev_dbg(dev, "Requesting full reconfiguration.\n");
>>> + ctype.flags = FULL_RECONFIG_FLAG;
>>> }
> Am I missing something here: Doesn't this do the same as before?
>
> Before:
> If info->flags & FPGA_MGR_PARTIAL_RECONFIG -> ctype.flags = 0 |
> BIT(COMMAND_RECONFIG_FLAG_PARTIAL) -> 1
> and ctype->flags = FULL_RECONFIG -> 0 else.
>
> Now:
> If info->flags & FPGA_MGR_PARTIAL_RECONFIG -> ctype.flags = PARTIAL_RECONFIG_FLAG -> 1
> ctype->flags = FULL_REECONFIG_FLAG -> 0 else.
>
> Am I missing something here? If I don't set the flag for partial
> reconfig I'd end up with full reconfiguration in both cases?
> If I do set the flag, I get partial reconfiguration in both cases?
>
>>> reinit_completion(&priv->status_return_completion);
>>> @@ -210,6 +214,7 @@ static int s10_ops_write_init(struct fpga_manager *mgr,
>>> ret = 0;
>>> if (!test_and_clear_bit(SVC_STATUS_OK, &priv->status)) {
>>> + dev_err(dev, "RECONFIG_REQUEST failed\n");
>>> ret = -ETIMEDOUT;
>>> goto init_done;
>>> }
>>>
>
> Thanks,
> Moritz
>
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2020-06-01 14:29 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2020-05-15 14:35 [PATCHv2] fpga: stratix10-soc: remove the pre-set reconfiguration condition richard.gong
2020-05-29 13:15 ` Richard Gong
2020-05-29 16:18 ` Russ Weight
2020-05-31 19:49 ` Moritz Fischer
2020-06-01 14:44 ` Richard Gong
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