[net PATCH] fib_trie: Correct /proc/net/route off by one error

canonical.com> Reported-by: Jason Baron <jba...@akamai.com> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- net/ipv4/fib_trie.c | 21 + 1 file changed, 9 insertions(+), 12 deletions(-) diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c i

Re: [PATCH net] fib_trie: correct /proc/net/route for large read buffer

On Fri, Nov 4, 2016 at 12:07 PM, Jason Baron <jba...@akamai.com> wrote: > > > On 11/04/2016 02:43 PM, Alexander Duyck wrote: >> >> On Fri, Nov 4, 2016 at 7:45 AM, Jason Baron <jba...@akamai.com> wrote: >>> >>> From: Jason Baron <jba...@akamai

Re: [PATCH net] fib_trie: correct /proc/net/route for large read buffer

er than iter->pos. > > Fix by properly handling the iter->pos == pos case. > > Fixes: 25b97c016b26 ("ipv4: off-by-one in continuation handling in > /proc/net/route") > Cc: Andy Whitcroft <a...@canonical.com> > Cc: Alexander Duyck <alexander.h.du...@intel.com&

Re: [PATCH] e1000e: free IRQ when the link is up or down

On Wed, Nov 2, 2016 at 2:08 PM, Tyler Baicar wrote: > Move IRQ free code so that it will happen regardless of the > link state. Currently the e1000e driver only releases its IRQ > if the link is up. This is not sufficient because it is > possible for a link to go down

[mm PATCH v2 22/26] arch/xtensa: Add option to skip DMA sync as a part of mapping

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it via a sync_for_cpu or sync_for_device call. Cc: Max Filippov <jcmvb...@gmail.com> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com&g

[mm PATCH v2 21/26] arch/tile: Add option to skip DMA sync as a part of map and unmap

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it via a sync_for_cpu or sync_for_device call. Cc: Chris Metcalf <cmetc...@mellanox.com> Signed-off-by: Alexander Duyck <alexander.h.du...@

[mm PATCH v2 11/26] arch/m68k: Add option to skip DMA sync as a part of mapping

ed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- arch/m68k/kernel/dma.c |8 +++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/arch/m68k/kernel/dma.c b/arch/m68k/kernel/dma.c index 8cf97cb..0707006 100644 --- a/arch/m68k/kernel/dma.c +++ b/arch/m68k/kernel/dma.c @@ -

[mm PATCH v2 10/26] arch/hexagon: Add option to skip DMA sync as a part of mapping

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it later via a sync_for_cpu or sync_for_device call. Cc: Richard Kuo <r...@codeaurora.org> Cc: linux-hexa...@vger.kernel.org Signed-off-by: Alexander

[mm PATCH v2 09/26] arch/frv: Add option to skip sync on DMA map

The use of DMA_ATTR_SKIP_CPU_SYNC was not consistent across all of the DMA APIs in the arch/arm folder. This change is meant to correct that so that we get consistent behavior. Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- arch/frv/mb93090-mb00/pci-dma-nommu.c

[mm PATCH v2 08/26] arch/c6x: Add option to skip sync on DMA map and unmap

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it later via a sync_for_cpu or sync_for_device call. Acked-by: Mark Salter <msal...@redhat.com> Signed-off-by: Alexander Duyck <alexander.h.du...@

[mm PATCH v2 04/26] arch/arc: Add option to skip sync on DMA mapping

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it later via a sync_for_cpu or sync_for_device call. Acked-by: Vineet Gupta <vgu...@synopsys.com> Signed-off-by: Alexander Duyck <alexa

[mm PATCH v2 14/26] arch/mips: Add option to skip DMA sync as a part of map and unmap

x-m...@linux-mips.org Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- arch/mips/loongson64/common/dma-swiotlb.c |2 +- arch/mips/mm/dma-default.c|8 +--- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/arch/mips/loongson64/common/dma-swio

[mm PATCH v2 19/26] arch/sh: Add option to skip DMA sync as a part of mapping

t; Cc: linux...@vger.kernel.org Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- arch/sh/kernel/dma-nommu.c |7 +-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/arch/sh/kernel/dma-nommu.c b/arch/sh/kernel/dma-nommu.c index eadb669..47fee3b 100644 --- a/arch/sh/kernel

[mm PATCH v2 20/26] arch/sparc: Add option to skip DMA sync as a part of map and unmap

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it via a sync_for_cpu or sync_for_device call. Cc: "David S. Miller" <da...@davemloft.net> Cc: sparcli...@vger.kernel.org Signed-off-by:

[mm PATCH v2 16/26] arch/openrisc: Add option to skip DMA sync as a part of mapping

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it via a sync_for_cpu or sync_for_device call. Cc: Jonas Bonn <jo...@southpole.se> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com&g

[mm PATCH v2 12/26] arch/metag: Add option to skip DMA sync as a part of map and unmap

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it via a sync_for_cpu or sync_for_device call. Cc: James Hogan <james.ho...@imgtec.com> Cc: linux-me...@vger.kernel.org Signed-off-by: Alexander

[mm PATCH v2 18/26] arch/powerpc: Add option to skip DMA sync as a part of mapping

Cc: Michael Ellerman <m...@ellerman.id.au> Cc: linuxppc-...@lists.ozlabs.org Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- arch/powerpc/kernel/dma.c |9 - 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/ke

[mm PATCH v2 03/26] swiotlb: Add support for DMA_ATTR_SKIP_CPU_SYNC

d.w...@oracle.com> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- v1: Found different fix for avoiding lines longer than 80 characters Dropped code that moved section to a label at end of function. Split out mapping error fix to separate patch. drivers/xen/swiotlb-

[mm PATCH v2 13/26] arch/microblaze: Add option to skip DMA sync as a part of map and unmap

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it via a sync_for_cpu or sync_for_device call. Cc: Michal Simek <mon...@monstr.eu> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com&g

[mm PATCH v2 05/26] arch/arm: Add option to skip sync on DMA map and unmap

The use of DMA_ATTR_SKIP_CPU_SYNC was not consistent across all of the DMA APIs in the arch/arm folder. This change is meant to correct that so that we get consistent behavior. Cc: Russell King <li...@armlinux.org.uk> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> -

[mm PATCH v2 25/26] igb: Update driver to make use of DMA_ATTR_SKIP_CPU_SYNC

to before we perform the prefetch and allocate the skbuff so that we can actually make use of it. Acked-by: Jeff Kirsher <jeffrey.t.kirs...@intel.com> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- drivers/net/ethernet/intel/igb/igb_main.c | 53 ++--

[mm PATCH v2 26/26] igb: Update code to better handle incrementing page count

. In addition if we eventually move this over to using build_skb the gains will be more noticeable. Acked-by: Jeff Kirsher <jeffrey.t.kirs...@intel.com> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- drivers/net/ethernet/intel/igb/igb.h |7 ++- drivers/net/et

[mm PATCH v2 23/26] dma: Add calls for dma_map_page_attrs and dma_unmap_page_attrs

taking care of the sync_for_cpu and sync_for_device from the driver there isn't much need to handle this in the map/unmap calls as well. Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- include/linux/dma-mapping.h | 20 +--- 1 file changed, 13 insertions

[mm PATCH v2 00/26] Add support for DMA writable pages being writable by the network stack

Acked-by Submitting patches to mm instead of net-next --- Alexander Duyck (26): swiotlb: Drop unused functions swiotlb_map_sg and swiotlb_unmap_sg swiotlb-xen: Enforce return of DMA_ERROR_CODE in mapping function swiotlb: Add support for DMA_ATTR_SKIP_CPU_SYNC arch/arc

[mm PATCH v2 24/26] mm: Add support for releasing multiple instances of a page

having to do any workarounds for the fact that there is no function that frees multiple references. Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- include/linux/gfp.h |2 ++ mm/page_alloc.c | 14 ++ 2 files changed, 16 insertions(+) diff --git a/include

[mm PATCH v2 17/26] arch/parisc: Add option to skip DMA sync as a part of map and unmap

x.de> Cc: linux-par...@vger.kernel.org Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- arch/parisc/kernel/pci-dma.c | 20 +++- 1 file changed, 15 insertions(+), 5 deletions(-) diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c index 02d9ed

[mm PATCH v2 02/26] swiotlb-xen: Enforce return of DMA_ERROR_CODE in mapping function

as the default is to compare the return value against DMA_ERROR_CODE if no function is defined. Cc: Konrad Rzeszutek Wilk <konrad.w...@oracle.com> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- v1: Added this patch which was part of an earlier patch. arch/

[mm PATCH v2 15/26] arch/nios2: Add option to skip DMA sync as a part of map and unmap

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it via a sync_for_cpu or sync_for_device call. Cc: Ley Foon Tan <lf...@altera.com> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com&g

[mm PATCH v2 01/26] swiotlb: Drop unused functions swiotlb_map_sg and swiotlb_unmap_sg

There are no users for swiotlb_map_sg or swiotlb_unmap_sg so we might as well just drop them. Cc: Konrad Rzeszutek Wilk <konrad.w...@oracle.com> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- v2: Added swiotlb_unmap_sg to functions dropped. include/linux/swio

[mm PATCH v2 06/26] arch/avr32: Add option to skip sync on DMA map

The use of DMA_ATTR_SKIP_CPU_SYNC was not consistent across all of the DMA APIs in the arch/arm folder. This change is meant to correct that so that we get consistent behavior. Acked-by: Hans-Christian Noren Egtvedt <egtv...@samfundet.no> Signed-off-by: Alexander Duyck <alexa

[mm PATCH v2 07/26] arch/blackfin: Add option to skip sync on DMA map

The use of DMA_ATTR_SKIP_CPU_SYNC was not consistent across all of the DMA APIs in the arch/arm folder. This change is meant to correct that so that we get consistent behavior. Cc: Steven Miao <real...@gmail.com> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- a

Re: [PATCH net-next RFC WIP] Patch for XDP support for virtio_net

700 >> >> > On 16-10-27 07:10 PM, David Miller wrote: >> >> From: Alexander Duyck <alexander.du...@gmail.com> >> >> Date: Thu, 27 Oct 2016 18:43:59 -0700 >> >> >> >>> On Thu, Oct 27, 2016 at 6:35 PM, David Miller <da...@davem

Re: [E1000-devel] ixgbe 4.4.6 detected crash

On Tue, Nov 1, 2016 at 8:16 AM, Matias Vara wrote: > Hi everyone, I am facing an issue with the ixgbe 10G Network card version > 4.4.6. I am in XenServer which is based on CentOS and the issue only appers > on FCOE machines. I am getting the following message during crash:

Re: [net-next PATCH RFC 04/26] arch/arm: Add option to skip sync on DMA map and unmap

On Mon, Oct 31, 2016 at 3:20 AM, Russell King - ARM Linux <li...@armlinux.org.uk> wrote: > On Mon, Oct 24, 2016 at 08:04:47AM -0400, Alexander Duyck wrote: >> The use of DMA_ATTR_SKIP_CPU_SYNC was not consistent across all of the DMA >> APIs in the arch/arm folder. This chang

[net-next PATCH v2 4/4] net: Add support for XPS with QoS via traffic classes

class via mqprio and then configure the XPS mapping for those queues so that the traffic flows can avoid head-of-line blocking between the individual CPUs if so desired. Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- v2: Mostly for loop updates based on changes in p

[net-next PATCH v2 3/4] net: Refactor removal of queues from XPS map and apply on num_tc changes

-by: Alexander Duyck <alexander.h.du...@intel.com> --- v2: Replaced do/while with for loop Changed order for remove_xps_queue_cpu loop Updated i to reflect count, j to be temporary offset Updated test to check for i < 0 instead of i < offset net/core/

[net-next PATCH v2 2/4] net: Add sysfs value to determine queue traffic class

traffic class into another. Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- v2: Added this patch to the series. include/linux/netdevice.h |1 + net/core/dev.c| 17 + net/core/net-sysfs.c | 20 +++- 3 files chang

[net-next PATCH v2 1/4] net: Move functions for configuring traffic classes out of inline headers

The functions for configuring the traffic class to queue mappings have other effects that need to be addressed. Instead of trying to export a bunch of new functions just relocate the functions so that we can instrument them directly with the functionality they will need. Signed-off-by: Alexander

[net-next PATCH v2 0/4] Add support for XPS when using DCB

with for loop Cleaned up several other for for loops throughout the patch --- Alexander Duyck (4): net: Move functions for configuring traffic classes out of inline headers net: Add sysfs value to determine queue traffic class net: Refactor removal of queues from XPS map

Re: [PATCH net-next RFC WIP] Patch for XDP support for virtio_net

On Fri, Oct 28, 2016 at 11:22 AM, Alexei Starovoitov <alexei.starovoi...@gmail.com> wrote: > On Fri, Oct 28, 2016 at 05:18:12PM +0100, Jakub Kicinski wrote: >> On Fri, 28 Oct 2016 08:56:35 -0700, John Fastabend wrote: >> > On 16-10-27 07:10 PM, David Miller wrote: >

Re: [net-next PATCH 03/27] swiotlb: Add support for DMA_ATTR_SKIP_CPU_SYNC

On Fri, Oct 28, 2016 at 10:34 AM, Konrad Rzeszutek Wilk <konrad.w...@oracle.com> wrote: > On Tue, Oct 25, 2016 at 11:37:03AM -0400, Alexander Duyck wrote: >> As a first step to making DMA_ATTR_SKIP_CPU_SYNC apply to architectures >> beyond just ARM I need to make i

Re: [net-next PATCH 00/27] Add support for DMA writable pages being writable by the network stack

On Tue, Oct 25, 2016 at 8:36 AM, Alexander Duyck <alexander.h.du...@intel.com> wrote: > The first 22 patches in the set add support for the DMA attribute > DMA_ATTR_SKIP_CPU_SYNC on multiple platforms/architectures. This is needed > so that we can flag the calls to dma_map/unmap_

Re: [Intel-wired-lan] [net-next PATCH 3/3] net: Add support for XPS with QoS via traffic classes

On Thu, Oct 27, 2016 at 7:38 PM, Tom Herbert <t...@herbertland.com> wrote: > On Thu, Oct 27, 2016 at 8:40 AM, Alexander Duyck > <alexander.h.du...@intel.com> wrote: >> This patch adds support for setting and using XPS when QoS via traffic >> classes is enabled. W

Re: [PATCH net-next RFC WIP] Patch for XDP support for virtio_net

On Thu, Oct 27, 2016 at 6:35 PM, David Miller wrote: > From: "Michael S. Tsirkin" > Date: Fri, 28 Oct 2016 01:25:48 +0300 > >> On Thu, Oct 27, 2016 at 05:42:18PM -0400, David Miller wrote: >>> From: "Michael S. Tsirkin" >>> Date: Fri, 28

[net-next PATCH 3/3] net: Add support for XPS with QoS via traffic classes

class via mqprio and then configure the XPS mapping for those queues so that the traffic flows can avoid head-of-line blocking between the individual CPUs if so desired. Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- include/linux/netdevice.h |5 +- net/core

[net-next PATCH 0/3] Add support for XPS when using DCB

classes and allows us to do a lookup per traffic class for a given CPU. To guarantee the isolation I invalidate the XPS map for any queues that are moved from one traffic class to another, or if we change the number of traffic classes. --- Alexander Duyck (3): net: Move functions

[net-next PATCH 2/3] net: Refactor removal of queues from XPS map and apply on num_tc changes

-by: Alexander Duyck <alexander.h.du...@intel.com> --- net/core/dev.c | 79 1 file changed, 56 insertions(+), 23 deletions(-) diff --git a/net/core/dev.c b/net/core/dev.c index d4d45bf..d124081 100644 --- a/net/core/dev.c +++ b/ne

[net-next PATCH 1/3] net: Move functions for configuring traffic classes out of inline headers

The functions for configuring the traffic class to queue mappings have other effects that need to be addressed. Instead of trying to export a bunch of new functions just relocate the functions so that we can instrument them directly with the functionality they will need. Signed-off-by: Alexander

Re: [PATCH net] arch/powerpc: Update parameters for csum_tcpudp_magic & csum_tcpudp_nofold

> > Fixes: 01cfbad "ipv4: Update parameters for csum_tcpudp_magic to their > original types" > Cc: Alexander Duyck <adu...@mirantis.com> > Signed-off-by: Ivan Vecera <ivec...@redhat.com> Acked-by: Alexander Duyck <alexander.h.du...@intel.com> > --- >

[net-next PATCH 05/27] arch/arm: Add option to skip sync on DMA map and unmap

The use of DMA_ATTR_SKIP_CPU_SYNC was not consistent across all of the DMA APIs in the arch/arm folder. This change is meant to correct that so that we get consistent behavior. Cc: Russell King <li...@armlinux.org.uk> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> -

[net-next PATCH 04/27] arch/arc: Add option to skip sync on DMA mapping

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it later via a sync_for_cpu or sync_for_device call. Cc: Vineet Gupta <vgu...@synopsys.com> Cc: linux-snps-...@lists.infradead.org Signed-off-by: Ale

[net-next PATCH 07/27] arch/blackfin: Add option to skip sync on DMA map

The use of DMA_ATTR_SKIP_CPU_SYNC was not consistent across all of the DMA APIs in the arch/arm folder. This change is meant to correct that so that we get consistent behavior. Cc: Steven Miao <real...@gmail.com> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- a

[net-next PATCH 22/27] arch/xtensa: Add option to skip DMA sync as a part of mapping

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it via a sync_for_cpu or sync_for_device call. Cc: Max Filippov <jcmvb...@gmail.com> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com&g

[net-next PATCH 01/27] swiotlb: Drop unused function swiotlb_map_sg

There are no users for swiotlb_map_sg so we might as well just drop it. Acked-by: Konrad Rzeszutek Wilk <konrad.w...@oracle.com> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- include/linux/swiotlb.h |4 lib/swiotlb.c |8 2 files

[net-next PATCH 03/27] swiotlb: Add support for DMA_ATTR_SKIP_CPU_SYNC

d.w...@oracle.com> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- drivers/xen/swiotlb-xen.c | 11 +++--- include/linux/swiotlb.h |6 -- lib/swiotlb.c | 48 +++-- 3 files changed, 40 insertions(+), 25 deleti

[net-next PATCH 23/27] dma: Add calls for dma_map_page_attrs and dma_unmap_page_attrs

taking care of the sync_for_cpu and sync_for_device from the driver there isn't much need to handle this in the map/unmap calls as well. Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- include/linux/dma-mapping.h | 20 +--- 1 file changed, 13 insertions

[net-next PATCH 24/27] mm: Add support for releasing multiple instances of a page

having to do any workarounds for the fact that there is no function that frees multiple references. Cc: linux...@kvack.org Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- include/linux/gfp.h |2 ++ mm/page_alloc.c | 14 ++ 2 files changed, 16 insertions(+)

[net-next PATCH 08/27] arch/c6x: Add option to skip sync on DMA map and unmap

; Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- arch/c6x/kernel/dma.c | 14 ++ 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/arch/c6x/kernel/dma.c b/arch/c6x/kernel/dma.c index db4a6a3..6752df3 100644 --- a/arch/c6x/kernel/dma.c +++ b/arch/c6x/kernel/dma.

[net-next PATCH 18/27] arch/powerpc: Add option to skip DMA sync as a part of mapping

Cc: Michael Ellerman <m...@ellerman.id.au> Cc: linuxppc-...@lists.ozlabs.org Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- arch/powerpc/kernel/dma.c |9 - 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/ke

[net-next PATCH 20/27] arch/sparc: Add option to skip DMA sync as a part of map and unmap

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it via a sync_for_cpu or sync_for_device call. Cc: "David S. Miller" <da...@davemloft.net> Cc: sparcli...@vger.kernel.org Signed-off-by:

[net-next PATCH 21/27] arch/tile: Add option to skip DMA sync as a part of map and unmap

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it via a sync_for_cpu or sync_for_device call. Cc: Chris Metcalf <cmetc...@mellanox.com> Signed-off-by: Alexander Duyck <alexander.h.du...@

[net-next PATCH 15/27] arch/nios2: Add option to skip DMA sync as a part of map and unmap

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it via a sync_for_cpu or sync_for_device call. Cc: Ley Foon Tan <lf...@altera.com> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com&g

[net-next PATCH 19/27] arch/sh: Add option to skip DMA sync as a part of mapping

t; Cc: linux...@vger.kernel.org Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- arch/sh/kernel/dma-nommu.c |7 +-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/arch/sh/kernel/dma-nommu.c b/arch/sh/kernel/dma-nommu.c index eadb669..47fee3b 100644 --- a/arch/sh/kernel

[net-next PATCH 13/27] arch/microblaze: Add option to skip DMA sync as a part of map and unmap

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it via a sync_for_cpu or sync_for_device call. Cc: Michal Simek <mon...@monstr.eu> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com&g

[net-next PATCH 00/27] Add support for DMA writable pages being writable by the network stack

-by for patches that were acked and not changed --- Alexander Duyck (27): swiotlb: Drop unused function swiotlb_map_sg swiotlb-xen: Enforce return of DMA_ERROR_CODE in mapping function swiotlb: Add support for DMA_ATTR_SKIP_CPU_SYNC arch/arc: Add option to skip sync on DMA mapping

[net-next PATCH 10/27] arch/hexagon: Add option to skip DMA sync as a part of mapping

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it later via a sync_for_cpu or sync_for_device call. Cc: Richard Kuo <r...@codeaurora.org> Cc: linux-hexa...@vger.kernel.org Signed-off-by: Alexander

[net-next PATCH 09/27] arch/frv: Add option to skip sync on DMA map

The use of DMA_ATTR_SKIP_CPU_SYNC was not consistent across all of the DMA APIs in the arch/arm folder. This change is meant to correct that so that we get consistent behavior. Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- arch/frv/mb93090-mb00/pci-dma-nommu.c

[net-next PATCH 11/27] arch/m68k: Add option to skip DMA sync as a part of mapping

ed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- arch/m68k/kernel/dma.c |8 +++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/arch/m68k/kernel/dma.c b/arch/m68k/kernel/dma.c index 8cf97cb..0707006 100644 --- a/arch/m68k/kernel/dma.c +++ b/arch/m68k/kernel/dma.c @@ -

[net-next PATCH 17/27] arch/parisc: Add option to skip DMA sync as a part of map and unmap

x.de> Cc: linux-par...@vger.kernel.org Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- arch/parisc/kernel/pci-dma.c | 20 +++- 1 file changed, 15 insertions(+), 5 deletions(-) diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c index 02d9ed

[net-next PATCH 12/27] arch/metag: Add option to skip DMA sync as a part of map and unmap

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it via a sync_for_cpu or sync_for_device call. Cc: James Hogan <james.ho...@imgtec.com> Cc: linux-me...@vger.kernel.org Signed-off-by: Alexander

[net-next PATCH 14/27] arch/mips: Add option to skip DMA sync as a part of map and unmap

x-m...@linux-mips.org Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- arch/mips/loongson64/common/dma-swiotlb.c |2 +- arch/mips/mm/dma-default.c|8 +--- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/arch/mips/loongson64/common/dma-swio

[net-next PATCH 06/27] arch/avr32: Add option to skip sync on DMA map

The use of DMA_ATTR_SKIP_CPU_SYNC was not consistent across all of the DMA APIs in the arch/arm folder. This change is meant to correct that so that we get consistent behavior. Acked-by: Hans-Christian Noren Egtvedt <egtv...@samfundet.no> Signed-off-by: Alexander Duyck <alexa

[net-next PATCH 26/27] igb: Update code to better handle incrementing page count

. In addition if we eventually move this over to using build_skb the gains will be more noticeable. Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- drivers/net/ethernet/intel/igb/igb.h |7 ++- drivers/net/ethernet/intel/igb/igb_main.c | 24 +

[net-next PATCH 27/27] igb: Revert "igb: Revert support for build_skb in igb"

b overhead and padding offset. Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- drivers/net/ethernet/intel/igb/igb.h | 29 ++ drivers/net/ethernet/intel/igb/igb_main.c | 130 ++--- 2 files changed, 142 insertions(+), 17 deletions(-) diff --g

[net-next PATCH 16/27] arch/openrisc: Add option to skip DMA sync as a part of mapping

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it via a sync_for_cpu or sync_for_device call. Cc: Jonas Bonn <jo...@southpole.se> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com&g

[net-next PATCH 25/27] igb: Update driver to make use of DMA_ATTR_SKIP_CPU_SYNC

to before we perform the prefetch and allocate the skbuff so that we can actually make use of it. Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- drivers/net/ethernet/intel/igb/igb_main.c | 53 ++--- 1 file changed, 33 insertions(+), 20 deletions(-)

[net-next PATCH 02/27] swiotlb-xen: Enforce return of DMA_ERROR_CODE in mapping function

as the default is to compare the return value against DMA_ERROR_CODE if no function is defined. Cc: Konrad Rzeszutek Wilk <konrad.w...@oracle.com> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- arch/arm/xen/mm.c |1 - arch/x86/xen/pci-swiotlb-xen.c |1 -

Re: [net-next PATCH RFC 19/26] arch/sparc: Add option to skip DMA sync as a part of map and unmap

On Mon, Oct 24, 2016 at 11:27 AM, David Miller <da...@davemloft.net> wrote: > From: Alexander Duyck <alexander.h.du...@intel.com> > Date: Mon, 24 Oct 2016 08:06:07 -0400 > >> This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to >> avoid

Re: [net-next PATCH RFC 02/26] swiotlb: Add support for DMA_ATTR_SKIP_CPU_SYNC

On Mon, Oct 24, 2016 at 11:09 AM, Konrad Rzeszutek Wilk <konrad.w...@oracle.com> wrote: > On Mon, Oct 24, 2016 at 08:04:37AM -0400, Alexander Duyck wrote: >> As a first step to making DMA_ATTR_SKIP_CPU_SYNC apply to architectures >> beyond just ARM I need to make i

[net-next PATCH RFC 19/26] arch/sparc: Add option to skip DMA sync as a part of map and unmap

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it via a sync_for_cpu or sync_for_device call. Cc: "David S. Miller" <da...@davemloft.net> Cc: sparcli...@vger.kernel.org Signed-off-by:

[net-next PATCH RFC 23/26] mm: Add support for releasing multiple instances of a page

having to do any workarounds for the fact that there is no function that frees multiple references. Cc: linux...@kvack.org Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- include/linux/gfp.h |2 ++ mm/page_alloc.c | 14 ++ 2 files changed, 16 insertions(+)

[net-next PATCH RFC 26/26] igb: Revert "igb: Revert support for build_skb in igb"

b overhead and padding offset. Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- drivers/net/ethernet/intel/igb/igb.h | 29 ++ drivers/net/ethernet/intel/igb/igb_main.c | 130 ++--- 2 files changed, 142 insertions(+), 17 deletions(-) diff --g

[net-next PATCH RFC 22/26] dma: Add calls for dma_map_page_attrs and dma_unmap_page_attrs

taking care of the sync_for_cpu and sync_for_device from the driver there isn't much need to handle this in the map/unmap calls as well. Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- include/linux/dma-mapping.h | 20 +--- 1 file changed, 13 insertions

[net-next PATCH RFC 20/26] arch/tile: Add option to skip DMA sync as a part of map and unmap

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it via a sync_for_cpu or sync_for_device call. Cc: Chris Metcalf <cmetc...@mellanox.com> Signed-off-by: Alexander Duyck <alexander.h.du...@

[net-next PATCH RFC 24/26] igb: Update driver to make use of DMA_ATTR_SKIP_CPU_SYNC

to before we perform the prefetch and allocate the skbuff so that we can actually make use of it. Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- drivers/net/ethernet/intel/igb/igb_main.c | 53 ++--- 1 file changed, 33 insertions(+), 20 deletions(-)

[net-next PATCH RFC 15/26] arch/openrisc: Add option to skip DMA sync as a part of mapping

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it via a sync_for_cpu or sync_for_device call. Cc: Jonas Bonn <jo...@southpole.se> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com&g

[net-next PATCH RFC 09/26] arch/hexagon: Add option to skip DMA sync as a part of mapping

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it later via a sync_for_cpu or sync_for_device call. Cc: Richard Kuo <r...@codeaurora.org> Cc: linux-hexa...@vger.kernel.org Signed-off-by: Alexander

[net-next PATCH RFC 08/26] arch/frv: Add option to skip sync on DMA map

The use of DMA_ATTR_SKIP_CPU_SYNC was not consistent across all of the DMA APIs in the arch/arm folder. This change is meant to correct that so that we get consistent behavior. Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- arch/frv/mb93090-mb00/pci-dma-nommu.c

[net-next PATCH RFC 21/26] arch/xtensa: Add option to skip DMA sync as a part of mapping

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it via a sync_for_cpu or sync_for_device call. Cc: Max Filippov <jcmvb...@gmail.com> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com&g

[net-next PATCH RFC 25/26] igb: Update code to better handle incrementing page count

. In addition if we eventually move this over to using build_skb the gains will be more noticeable. Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- drivers/net/ethernet/intel/igb/igb.h |7 ++- drivers/net/ethernet/intel/igb/igb_main.c | 24 +

[net-next PATCH RFC 00/26] Add support for DMA writable pages being writable by the network stack

it to this patch set. If needed I can look into breaking this into a smaller set of patches but this set is all that should be needed to then start looking at putting together a DMA page pool per device which I know is something Jesper has been working on. --- Alexander Duyck (26): swiotlb

[net-next PATCH RFC 02/26] swiotlb: Add support for DMA_ATTR_SKIP_CPU_SYNC

d.w...@oracle.com> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- drivers/xen/swiotlb-xen.c | 40 ++ include/linux/swiotlb.h |6 -- lib/swiotlb.c | 48 +++-- 3 files

[net-next PATCH RFC 13/26] arch/mips: Add option to skip DMA sync as a part of map and unmap

x-m...@linux-mips.org Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- arch/mips/loongson64/common/dma-swiotlb.c |2 +- arch/mips/mm/dma-default.c|8 +--- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/arch/mips/loongson64/common/dma-swio

[net-next PATCH RFC 01/26] swiotlb: Drop unused function swiotlb_map_sg

There are no users for swiotlb_map_sg so we might as well just drop it. Cc: Konrad Rzeszutek Wilk <konrad.w...@oracle.com> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- include/linux/swiotlb.h |4 lib/swiotlb.c |8 2 files changed,

[net-next PATCH RFC 10/26] arch/m68k: Add option to skip DMA sync as a part of mapping

ed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- arch/m68k/kernel/dma.c |8 +++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/arch/m68k/kernel/dma.c b/arch/m68k/kernel/dma.c index 8cf97cb..0707006 100644 --- a/arch/m68k/kernel/dma.c +++ b/arch/m68k/kernel/dma.c @@ -

[net-next PATCH RFC 07/26] arch/c6x: Add option to skip sync on DMA map and unmap

6x-...@linux-c6x.org Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- arch/c6x/kernel/dma.c | 16 +++- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/arch/c6x/kernel/dma.c b/arch/c6x/kernel/dma.c index db4a6a3..d28df74 100644 --- a/arch/c6x/kerne

[net-next PATCH RFC 06/26] arch/blackfin: Add option to skip sync on DMA map

The use of DMA_ATTR_SKIP_CPU_SYNC was not consistent across all of the DMA APIs in the arch/arm folder. This change is meant to correct that so that we get consistent behavior. Cc: Steven Miao <real...@gmail.com> Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- a

[net-next PATCH RFC 05/26] arch/avr32: Add option to skip sync on DMA map

; Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- arch/avr32/mm/dma-coherent.c |7 ++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/avr32/mm/dma-coherent.c b/arch/avr32/mm/dma-coherent.c index 58610d0..54534e5 100644 --- a/arch/avr32/mm/dma-coherent.c +++ b

[net-next PATCH RFC 03/26] arch/arc: Add option to skip sync on DMA mapping

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it later via a sync_for_cpu or sync_for_device call. Cc: Vineet Gupta <vgu...@synopsys.com> Cc: linux-snps-...@lists.infradead.org Signed-off-by: Ale

[net-next PATCH RFC 17/26] arch/powerpc: Add option to skip DMA sync as a part of mapping

Cc: Michael Ellerman <m...@ellerman.id.au> Cc: linuxppc-...@lists.ozlabs.org Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> --- arch/powerpc/kernel/dma.c |9 - 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/ke

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