2019-02-15 15:42:15

by Mehta, Sanju

Subject: [PATCH 1/4] NTB: ntb_perf: Increased the number of message retries to 1000

From: Sanjay R Mehta <[email protected]>

while waiting for the peer ntb_perf to initialize scratchpad
registers, local side ntb_perf might have already exhausted the
maximum number of retries which is currently set to 500. To avoid
this and to give little more time to the peer ntb_perf for scratchpad
initialization, increased the number of retries to 1000

Signed-off-by: Sanjay R Mehta <[email protected]>
---
drivers/ntb/test/ntb_perf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ntb/test/ntb_perf.c b/drivers/ntb/test/ntb_perf.c
index 2a9d6b0..a828d0e 100644
--- a/drivers/ntb/test/ntb_perf.c
+++ b/drivers/ntb/test/ntb_perf.c
@@ -100,7 +100,7 @@ MODULE_DESCRIPTION("PCIe NTB Performance Measurement Tool");
#define DMA_TRIES 100
#define DMA_MDELAY 10

-#define MSG_TRIES 500
+#define MSG_TRIES 1000
#define MSG_UDELAY_LOW 1000
#define MSG_UDELAY_HIGH 2000

--
2.7.4

2019-03-20 17:52:48

by Jon Mason

Subject: Re: [PATCH 1/4] NTB: ntb_perf: Increased the number of message retries to 1000

On Fri, Feb 15, 2019 at 09:20:07AM +0000, Mehta, Sanju wrote:
> From: Sanjay R Mehta <[email protected]>
>
> while waiting for the peer ntb_perf to initialize scratchpad
> registers, local side ntb_perf might have already exhausted the
> maximum number of retries which is currently set to 500. To avoid
> this and to give little more time to the peer ntb_perf for scratchpad
> initialization, increased the number of retries to 1000
>
> Signed-off-by: Sanjay R Mehta <[email protected]>

Series applied to my ntb branch.

Thanks,
Jon


> ---
> drivers/ntb/test/ntb_perf.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/ntb/test/ntb_perf.c b/drivers/ntb/test/ntb_perf.c
> index 2a9d6b0..a828d0e 100644
> --- a/drivers/ntb/test/ntb_perf.c
> +++ b/drivers/ntb/test/ntb_perf.c
> @@ -100,7 +100,7 @@ MODULE_DESCRIPTION("PCIe NTB Performance Measurement Tool");
> #define DMA_TRIES 100
> #define DMA_MDELAY 10
>
> -#define MSG_TRIES 500
> +#define MSG_TRIES 1000
> #define MSG_UDELAY_LOW 1000
> #define MSG_UDELAY_HIGH 2000
>
> --
> 2.7.4
>
> --
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2019-05-20 14:56:57

by Sanjay R Mehta

Subject: Re: [PATCH 1/4] NTB: ntb_perf: Increased the number of message retries to 1000

On 3/20/2019 11:20 PM, Jon Mason wrote:
> On Fri, Feb 15, 2019 at 09:20:07AM +0000, Mehta, Sanju wrote:
>> From: Sanjay R Mehta <[email protected]>
>>
>> while waiting for the peer ntb_perf to initialize scratchpad
>> registers, local side ntb_perf might have already exhausted the
>> maximum number of retries which is currently set to 500. To avoid
>> this and to give little more time to the peer ntb_perf for scratchpad
>> initialization, increased the number of retries to 1000
>>
>> Signed-off-by: Sanjay R Mehta <[email protected]>
> Series applied to my ntb branch.

Hi Jon,

The above patch series is not visible in 5.2-rc1 branch. Please let me know when I can expect them in upstream kernel.

Thanks & Regards,

Sanjay Mehta

>
> Thanks,
> Jon
>
>
>> ---
>> drivers/ntb/test/ntb_perf.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/ntb/test/ntb_perf.c b/drivers/ntb/test/ntb_perf.c
>> index 2a9d6b0..a828d0e 100644
>> --- a/drivers/ntb/test/ntb_perf.c
>> +++ b/drivers/ntb/test/ntb_perf.c
>> @@ -100,7 +100,7 @@ MODULE_DESCRIPTION("PCIe NTB Performance Measurement Tool");
>> #define DMA_TRIES 100
>> #define DMA_MDELAY 10
>>
>> -#define MSG_TRIES 500
>> +#define MSG_TRIES 1000
>> #define MSG_UDELAY_LOW 1000
>> #define MSG_UDELAY_HIGH 2000
>>
>> --
>> 2.7.4
>>
>> --
>> You received this message because you are subscribed to the Google Groups "linux-ntb" group.
>> To unsubscribe from this group and stop receiving emails from it, send an email to [email protected].
>> To post to this group, send email to [email protected].
>> To view this discussion on the web visit https://groups.google.com/d/msgid/linux-ntb/1550222279-27216-1-git-send-email-Sanju.Mehta%40amd.com.
>> For more options, visit https://groups.google.com/d/optout.