diff mbox series

[RESEND,PATCHv1] fpga: stratix10-soc: make FPGA task un-interruptible

Message ID 1595607009-2065-1-git-send-email-richard.gong@linux.intel.com (mailing list archive)
State Mainlined, archived
Headers show
Series [RESEND,PATCHv1] fpga: stratix10-soc: make FPGA task un-interruptible | expand

Commit Message

Richard Gong July 24, 2020, 4:10 p.m. UTC 
From: Richard Gong <richard.gong@intel.com>

When CTRL+C occurs during the process of FPGA reconfiguration, the FPGA
reconfiguration process stops and the user can't perform a new FPGA
reconfiguration properly.

Set FPGA task to be not interruptible so that the user can properly
perform FPGA reconfiguration after CTRL+C event.

Signed-off-by: Richard Gong <richard.gong@intel.com>
Reviewed-by: Tom Rix <trix@redhat.com>
---
 drivers/fpga/stratix10-soc.c | 23 +++--------------------
 1 file changed, 3 insertions(+), 20 deletions(-)

Comments

Moritz Fischer Aug. 4, 2020, 4:43 p.m. UTC | #1 
On Fri, Jul 24, 2020 at 11:10:09AM -0500, richard.gong@linux.intel.com wrote:
> From: Richard Gong <richard.gong@intel.com>
> 
> When CTRL+C occurs during the process of FPGA reconfiguration, the FPGA
> reconfiguration process stops and the user can't perform a new FPGA
> reconfiguration properly.
> 
> Set FPGA task to be not interruptible so that the user can properly
> perform FPGA reconfiguration after CTRL+C event.
> 
> Signed-off-by: Richard Gong <richard.gong@intel.com>
> Reviewed-by: Tom Rix <trix@redhat.com>
> ---
>  drivers/fpga/stratix10-soc.c | 23 +++--------------------
>  1 file changed, 3 insertions(+), 20 deletions(-)
> 
> diff --git a/drivers/fpga/stratix10-soc.c b/drivers/fpga/stratix10-soc.c
> index 44b7c56..657a70c 100644
> --- a/drivers/fpga/stratix10-soc.c
> +++ b/drivers/fpga/stratix10-soc.c
> @@ -196,17 +196,13 @@ static int s10_ops_write_init(struct fpga_manager *mgr,
>  	if (ret < 0)
>  		goto init_done;
>  
> -	ret = wait_for_completion_interruptible_timeout(
> +	ret = wait_for_completion_timeout(
>  		&priv->status_return_completion, S10_RECONFIG_TIMEOUT);
>  	if (!ret) {
>  		dev_err(dev, "timeout waiting for RECONFIG_REQUEST\n");
>  		ret = -ETIMEDOUT;
>  		goto init_done;
>  	}
> -	if (ret < 0) {
> -		dev_err(dev, "error (%d) waiting for RECONFIG_REQUEST\n", ret);
> -		goto init_done;
> -	}
>  
>  	ret = 0;
>  	if (!test_and_clear_bit(SVC_STATUS_OK, &priv->status)) {
> @@ -318,7 +314,7 @@ static int s10_ops_write(struct fpga_manager *mgr, const char *buf,
>  		 */
>  		wait_status = 1; /* not timed out */
>  		if (!priv->status)
> -			wait_status = wait_for_completion_interruptible_timeout(
> +			wait_status = wait_for_completion_timeout(
>  				&priv->status_return_completion,
>  				S10_BUFFER_TIMEOUT);
>  
> @@ -340,13 +336,6 @@ static int s10_ops_write(struct fpga_manager *mgr, const char *buf,
>  			ret = -ETIMEDOUT;
>  			break;
>  		}
> -		if (wait_status < 0) {
> -			ret = wait_status;
> -			dev_err(dev,
> -				"error (%d) waiting for svc layer buffers\n",
> -				ret);
> -			break;
> -		}
>  	}
>  
>  	if (!s10_free_buffers(mgr))
> @@ -372,7 +361,7 @@ static int s10_ops_write_complete(struct fpga_manager *mgr,
>  		if (ret < 0)
>  			break;
>  
> -		ret = wait_for_completion_interruptible_timeout(
> +		ret = wait_for_completion_timeout(
>  			&priv->status_return_completion, timeout);
>  		if (!ret) {
>  			dev_err(dev,
> @@ -380,12 +369,6 @@ static int s10_ops_write_complete(struct fpga_manager *mgr,
>  			ret = -ETIMEDOUT;
>  			break;
>  		}
> -		if (ret < 0) {
> -			dev_err(dev,
> -				"error (%d) waiting for RECONFIG_COMPLETED\n",
> -				ret);
> -			break;
> -		}
>  		/* Not error or timeout, so ret is # of jiffies until timeout */
>  		timeout = ret;
>  		ret = 0;
> -- 
> 2.7.4
> 

Sorry that one slipped through the cracks, will apply to for-next.

Thanks!
Richard Gong Aug. 4, 2020, 6:04 p.m. UTC | #2 
Hi Moritz,

No problem.

Thanks you very much for applying patch to the next!

Regards,
Richard

On 8/4/20 11:43 AM, Moritz Fischer wrote:
> On Fri, Jul 24, 2020 at 11:10:09AM -0500, richard.gong@linux.intel.com wrote:
>> From: Richard Gong <richard.gong@intel.com>
>>
>> When CTRL+C occurs during the process of FPGA reconfiguration, the FPGA
>> reconfiguration process stops and the user can't perform a new FPGA
>> reconfiguration properly.
>>
>> Set FPGA task to be not interruptible so that the user can properly
>> perform FPGA reconfiguration after CTRL+C event.
>>
>> Signed-off-by: Richard Gong <richard.gong@intel.com>
>> Reviewed-by: Tom Rix <trix@redhat.com>
>> ---
>>   drivers/fpga/stratix10-soc.c | 23 +++--------------------
>>   1 file changed, 3 insertions(+), 20 deletions(-)
>>
>> diff --git a/drivers/fpga/stratix10-soc.c b/drivers/fpga/stratix10-soc.c
>> index 44b7c56..657a70c 100644
>> --- a/drivers/fpga/stratix10-soc.c
>> +++ b/drivers/fpga/stratix10-soc.c
>> @@ -196,17 +196,13 @@ static int s10_ops_write_init(struct fpga_manager *mgr,
>>   	if (ret < 0)
>>   		goto init_done;
>>   
>> -	ret = wait_for_completion_interruptible_timeout(
>> +	ret = wait_for_completion_timeout(
>>   		&priv->status_return_completion, S10_RECONFIG_TIMEOUT);
>>   	if (!ret) {
>>   		dev_err(dev, "timeout waiting for RECONFIG_REQUEST\n");
>>   		ret = -ETIMEDOUT;
>>   		goto init_done;
>>   	}
>> -	if (ret < 0) {
>> -		dev_err(dev, "error (%d) waiting for RECONFIG_REQUEST\n", ret);
>> -		goto init_done;
>> -	}
>>   
>>   	ret = 0;
>>   	if (!test_and_clear_bit(SVC_STATUS_OK, &priv->status)) {
>> @@ -318,7 +314,7 @@ static int s10_ops_write(struct fpga_manager *mgr, const char *buf,
>>   		 */
>>   		wait_status = 1; /* not timed out */
>>   		if (!priv->status)
>> -			wait_status = wait_for_completion_interruptible_timeout(
>> +			wait_status = wait_for_completion_timeout(
>>   				&priv->status_return_completion,
>>   				S10_BUFFER_TIMEOUT);
>>   
>> @@ -340,13 +336,6 @@ static int s10_ops_write(struct fpga_manager *mgr, const char *buf,
>>   			ret = -ETIMEDOUT;
>>   			break;
>>   		}
>> -		if (wait_status < 0) {
>> -			ret = wait_status;
>> -			dev_err(dev,
>> -				"error (%d) waiting for svc layer buffers\n",
>> -				ret);
>> -			break;
>> -		}
>>   	}
>>   
>>   	if (!s10_free_buffers(mgr))
>> @@ -372,7 +361,7 @@ static int s10_ops_write_complete(struct fpga_manager *mgr,
>>   		if (ret < 0)
>>   			break;
>>   
>> -		ret = wait_for_completion_interruptible_timeout(
>> +		ret = wait_for_completion_timeout(
>>   			&priv->status_return_completion, timeout);
>>   		if (!ret) {
>>   			dev_err(dev,
>> @@ -380,12 +369,6 @@ static int s10_ops_write_complete(struct fpga_manager *mgr,
>>   			ret = -ETIMEDOUT;
>>   			break;
>>   		}
>> -		if (ret < 0) {
>> -			dev_err(dev,
>> -				"error (%d) waiting for RECONFIG_COMPLETED\n",
>> -				ret);
>> -			break;
>> -		}
>>   		/* Not error or timeout, so ret is # of jiffies until timeout */
>>   		timeout = ret;
>>   		ret = 0;
>> -- 
>> 2.7.4
>>
> 
> Sorry that one slipped through the cracks, will apply to for-next.
> 
> Thanks!
>
diff mbox series

Patch

diff --git a/drivers/fpga/stratix10-soc.c b/drivers/fpga/stratix10-soc.c
index 44b7c56..657a70c 100644
--- a/drivers/fpga/stratix10-soc.c
+++ b/drivers/fpga/stratix10-soc.c
@@ -196,17 +196,13 @@  static int s10_ops_write_init(struct fpga_manager *mgr,
 	if (ret < 0)
 		goto init_done;
 
-	ret = wait_for_completion_interruptible_timeout(
+	ret = wait_for_completion_timeout(
 		&priv->status_return_completion, S10_RECONFIG_TIMEOUT);
 	if (!ret) {
 		dev_err(dev, "timeout waiting for RECONFIG_REQUEST\n");
 		ret = -ETIMEDOUT;
 		goto init_done;
 	}
-	if (ret < 0) {
-		dev_err(dev, "error (%d) waiting for RECONFIG_REQUEST\n", ret);
-		goto init_done;
-	}
 
 	ret = 0;
 	if (!test_and_clear_bit(SVC_STATUS_OK, &priv->status)) {
@@ -318,7 +314,7 @@  static int s10_ops_write(struct fpga_manager *mgr, const char *buf,
 		 */
 		wait_status = 1; /* not timed out */
 		if (!priv->status)
-			wait_status = wait_for_completion_interruptible_timeout(
+			wait_status = wait_for_completion_timeout(
 				&priv->status_return_completion,
 				S10_BUFFER_TIMEOUT);
 
@@ -340,13 +336,6 @@  static int s10_ops_write(struct fpga_manager *mgr, const char *buf,
 			ret = -ETIMEDOUT;
 			break;
 		}
-		if (wait_status < 0) {
-			ret = wait_status;
-			dev_err(dev,
-				"error (%d) waiting for svc layer buffers\n",
-				ret);
-			break;
-		}
 	}
 
 	if (!s10_free_buffers(mgr))
@@ -372,7 +361,7 @@  static int s10_ops_write_complete(struct fpga_manager *mgr,
 		if (ret < 0)
 			break;
 
-		ret = wait_for_completion_interruptible_timeout(
+		ret = wait_for_completion_timeout(
 			&priv->status_return_completion, timeout);
 		if (!ret) {
 			dev_err(dev,
@@ -380,12 +369,6 @@  static int s10_ops_write_complete(struct fpga_manager *mgr,
 			ret = -ETIMEDOUT;
 			break;
 		}
-		if (ret < 0) {
-			dev_err(dev,
-				"error (%d) waiting for RECONFIG_COMPLETED\n",
-				ret);
-			break;
-		}
 		/* Not error or timeout, so ret is # of jiffies until timeout */
 		timeout = ret;
 		ret = 0;