On 2018-03-28 02:14, Linus Torvalds wrote:
On Tue, Mar 27, 2018 at 5:24 PM, Sinan Kaya
wrote:
Basically changing it to
dma_buffer->foo = 1;/* WB */
wmb()
writel_relaxed(KICK, DMA_KICK_REGISTER);/* UC */
mmiowb()
Why?
Why not just remove the wmb(), and keep the
On 2018-03-25 08:06, Belgazal, Netanel wrote:
I think you should either add a parameter to
ena_com_write_sq_doorbell() or add ena_com_write_sq_doorbell_rel().
Right now, you have unused function.
That is true. I got rid of ena_com_write_sq_doorbell_rel.
On 3/20/18, 4:43 AM, "Sinan Kaya" wr
On 2018-03-23 19:58, Jeff Kirsher wrote:
On Fri, 2018-03-23 at 14:53 -0700, Alexander Duyck wrote:
On Fri, Mar 23, 2018 at 11:52 AM, Sinan Kaya
wrote:
> Code includes wmb() followed by writel() in multiple places. writel()
> already has a barrier on some architectures like arm64.
>
> This ends
On 2018-03-21 19:03, Casey Leedom wrote:
[[ Appologies for the DUPLICATE email. I forgot to tell my Mail Agent
to
use Plain Text. -- Casey ]]
I feel very uncomfortable with these proposed changes. Our team is
right
in the middle of trying to tease our way through the various platform
i
On 2018-03-21 17:54, David Miller wrote:
From: Jeff Kirsher
Date: Wed, 21 Mar 2018 14:48:08 -0700
On Wed, 2018-03-21 at 14:56 -0400, Sinan Kaya wrote:
Remove ixgbevf_write_tail() in favor of moving writel() close to
wmb().
Signed-off-by: Sinan Kaya
Reviewed-by: Alexander Duyck
---
drivers
On 2018-03-21 17:48, Jeff Kirsher wrote:
On Wed, 2018-03-21 at 14:56 -0400, Sinan Kaya wrote:
Remove ixgbevf_write_tail() in favor of moving writel() close to
wmb().
Signed-off-by: Sinan Kaya
Reviewed-by: Alexander Duyck
---
drivers/net/ethernet/intel/ixgbevf/ixgbevf.h | 5 -
driver
On 2018-03-14 01:08, Timur Tabi wrote:
On 3/13/18 10:20 PM, Sinan Kaya wrote:
+/* Assumes caller has executed a write barrier to order memory and
device
+ * requests.
+ */
static inline void ixgbevf_write_tail(struct ixgbevf_ring *ring, u32
value)
{
- writel(value, ring->tail);
+
On 2018-03-14 00:12, Jason Gunthorpe wrote:
On Tue, Mar 13, 2018 at 11:20:24PM -0400, Sinan Kaya wrote:
Code includes wmb() followed by writel() in multiple places. writel()
already has a barrier on some architectures like arm64.
This ends up CPU observing two barriers back to back before execu
On 2016-04-18 08:12, Christoph Hellwig wrote:
On Sat, Apr 16, 2016 at 06:23:32PM -0400, Sinan Kaya wrote:
Current code is assuming that the address returned by
dma_alloc_coherent
is a logical address. This is not true on ARM/ARM64 systems.
Can you explain what you mean with a 'logical address
On 2016-04-18 00:00, David Miller wrote:
From: Sinan Kaya
Date: Sat, 16 Apr 2016 18:23:32 -0400
Current code is assuming that the address returned by
dma_alloc_coherent
is a logical address. This is not true on ARM/ARM64 systems. This
patch
replaces dma_alloc_coherent with dma_map_page API. T
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