On 2/3/2017 2:11 PM, Eric Dumazet wrote:
Transmit completion might happen on another cpu, regardless of ldom.
Therefore you need smp_rmb() here ( like mellanox/mlx4/en_tx.c) , or
even smp_mb() as bnx2x does.
dma_rmb() is never used in this context.
In that case, it looks like there are a co
On Fri, 2017-02-03 at 13:20 -0800, Shannon Nelson wrote:
> On 2/3/2017 9:56 AM, Eric Dumazet wrote:
> > On Fri, 2017-02-03 at 09:42 -0800, Shannon Nelson wrote:
> >> In order to allow the underlying LDC and outstanding memory operations
> >> to potentially catch up with the driver's Tx requests, ad
From: Shannon Nelson
Date: Fri, 3 Feb 2017 13:20:43 -0800
> On 2/3/2017 9:56 AM, Eric Dumazet wrote:
>> On Fri, 2017-02-03 at 09:42 -0800, Shannon Nelson wrote:
>>> In order to allow the underlying LDC and outstanding memory operations
>>> to potentially catch up with the driver's Tx requests, ad
On 2/3/2017 9:56 AM, Eric Dumazet wrote:
On Fri, 2017-02-03 at 09:42 -0800, Shannon Nelson wrote:
In order to allow the underlying LDC and outstanding memory operations
to potentially catch up with the driver's Tx requests, add a memory
barrier before checking again for available tx descriptors.
On Fri, 2017-02-03 at 09:42 -0800, Shannon Nelson wrote:
> In order to allow the underlying LDC and outstanding memory operations
> to potentially catch up with the driver's Tx requests, add a memory
> barrier before checking again for available tx descriptors.
>
> Signed-off-by: Shannon Nelson
>
In order to allow the underlying LDC and outstanding memory operations
to potentially catch up with the driver's Tx requests, add a memory
barrier before checking again for available tx descriptors.
Signed-off-by: Shannon Nelson
---
drivers/net/ethernet/sun/sunvnet_common.c |1 +
1 files cha
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