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

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Message-ID: <20190320175011.GA27156@kudzu.us>
Date:   Wed, 20 Mar 2019 13:50:12 -0400
From:   Jon Mason <jdmason@...zu.us>
To:     "Mehta, Sanju" <Sanju.Mehta@....com>
Cc:     "S-k, Shyam-sundar" <Shyam-sundar.S-k@....com>,
        "dave.jiang@...el.com" <dave.jiang@...el.com>,
        "allenbh@...il.com" <allenbh@...il.com>,
        "linux-ntb@...glegroups.com" <linux-ntb@...glegroups.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
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 <sanju.mehta@....com>
> 
> 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 <sanju.mehta@....com>

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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