netdev - Re: [PATCH v2 net-next] bnxt: add dma mapping attributes

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Message-ID: <CACKFLimzVSgb92EmiZ44Xr7G=Xi8FD+wrs7dgY6jg8vdVMBOSA@mail.gmail.com>
Date:   Tue, 9 May 2017 19:16:37 -0700
From:   Michael Chan <michael.chan@...adcom.com>
To:     Shannon Nelson <shannon.nelson@...cle.com>
Cc:     David Miller <davem@...emloft.net>,
        Netdev <netdev@...r.kernel.org>, sparclinux@...r.kernel.org
Subject: Re: [PATCH v2 net-next] bnxt: add dma mapping attributes

On Tue, May 9, 2017 at 6:30 PM, Shannon Nelson
<shannon.nelson@...cle.com> wrote:
> On the SPARC platform we need to use the DMA_ATTR_WEAK_ORDERING attribute
> in our Rx path dma mapping in order to get the expected performance out
> of the receive path.  Adding it to the Tx path has little effect, so
> that's not a part of this patch.
>
> Signed-off-by: Shannon Nelson <shannon.nelson@...cle.com>
> Reviewed-by: Tushar Dave <tushar.n.dave@...cle.com>
> Reviewed-by: Tom Saeger <tom.saeger@...cle.com>
> ---
> v2: simplify by getting rid of the driver-specific ifdef and define

Acked-by: Michael Chan <michael.chan@...adcom.com>