h the new r->prod.tail.
I added a read barrier in the case where __IS_SC is passed to
__rte_ring_move_cons_head(). I also fixed __rte_ring_move_prod_head()
to avoid similar problems with a single producer.
Cc: sta...@dpdk.org
Signed-off-by: Takeshi Yoshimura
---
lib/librte_ring/rte_ring_ge
Allow mapping MSIX BAR",
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/vfio/pci/vfio_pci.c?h=v4.18-rc3&id=a32295c612c57990d17fb0f41e7134394b2f35f6
Fixes: 90a1633b2347 ("eal/linux: allow to map BARs with MSI-X tables")
Signed-off-by: Takeshi Yos
Allow mapping MSIX BAR",
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
commit/id=a32295c612c57990d17fb0f41e7134394b2f35f6
Fixes: 90a1633b2347 ("eal/linux: allow to map BARs with MSI-X tables")
Signed-off-by: Takeshi Yoshimura
---
Fixed checkpatch warnings
d
5f6
Fixes: 90a1633b2347 ("eal/linux: allow to map BARs with MSI-X tables")
Signed-off-by: Takeshi Yoshimura
---
Thanks, Anatoly.
I updated the patch not to affect behaviors of older Linux and
other environments as well as possible. This patch adds another
chance to mmap BAR0.
I noticed th
ring as another patch.
2018-07-13 2:08 GMT+09:00 Jerin Jacob :
> -Original Message-
>> Date: Thu, 12 Jul 2018 11:44:14 +0900
>> From: Takeshi Yoshimura
>> To: dev@dpdk.org
>> Cc: Takeshi Yoshimura , sta...@dpdk.org, Takeshi
>> Yoshimura
>> Subject: [d
2018-07-13 20:08 GMT+09:00 Burakov, Anatoly :
> On 13-Jul-18 12:00 PM, Burakov, Anatoly wrote:
>>
>> On 13-Jul-18 11:11 AM, Takeshi Yoshimura wrote:
>>>
>>> The workaround of BAR0 mapping gives up and immediately returns an
>>> error if it cannot map
5f6
Fixes: 90a1633b2347 ("eal/linux: allow to map BARs with MSI-X tables")
Signed-off-by: Takeshi Yoshimura
---
drivers/bus/pci/linux/pci_vfio.c | 92 ++--
1 file changed, 51 insertions(+), 41 deletions(-)
diff --git a/drivers/bus/pci/linux/pci_vfio.c b/d
tps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
commit/?id=a32295c612c57990d17fb0f41e7134394b2f35f6
Fixes: 90a1633b2347 ("eal/linux: allow to map BARs with MSI-X tables")
Signed-off-by: Takeshi Yoshimura
Reviewed-by: Anatoly Burakov
---
Thanks, Anatoly.
I updated th
2018-07-30 20:17 GMT+09:00 Anatoly Burakov :
> Currently, DPDK will skip mapping some areas (or even an entire BAR)
> if MSI-X happens to be in it but is smaller than page address.
>
> Kernels 4.16+ will allow mapping MSI-X BARs [1], and will report this
> as a capability flag. Capability flags the
2018-07-31 20:28 GMT+09:00 Anatoly Burakov :
> Currently, DPDK will skip mapping some areas (or even an entire BAR)
> if MSI-X table happens to be in them but is smaller than page size.
>
> Kernels 4.16+ will allow mapping MSI-X BARs [1], and will report this
> as a capability flag. Capability flag
a639085938 ("vfio: allow to map other memory regions")
Signed-off-by: Takeshi Yoshimura
---
lib/librte_eal/linuxapp/eal/eal_vfio.c | 23 +++
1 file changed, 15 insertions(+), 8 deletions(-)
diff --git a/lib/librte_eal/linuxapp/eal/eal_vfio.c
b/lib/librte_eal/linuxapp/
a639085938 ("vfio: allow to map other memory regions")
Signed-off-by: Takeshi Yoshimura
---
lib/librte_eal/linuxapp/eal/eal_vfio.c | 23 +++
1 file changed, 15 insertions(+), 8 deletions(-)
diff --git a/lib/librte_eal/linuxapp/eal/eal_vfio.c
b/lib/librte_eal/linuxapp/
a639085938 ("vfio: allow to map other memory regions")
Cc: sta...@dpdk.org
Signed-off-by: Takeshi Yoshimura
---
v2: Added Cc in message
lib/librte_eal/linuxapp/eal/eal_vfio.c | 23 +++
1 file changed, 15 insertions(+), 8 deletions(-)
diff --git a/lib/librte_eal/lin
ter the window creation. This patch
fixes to retry only different page levels.
Fixes: e072d16f8920 ("vfio: fix expanding DMA area in ppc64le")
Fixes: db90b4969e2e ("vfio: retry creating sPAPR DMA window")
Signed-off-by: Takeshi Yoshimura
---
lib/librte_eal/linux/eal/eal_vf
ode if
ddw is not supported.
Fixes: db90b4969e2e ("vfio: retry creating sPAPR DMA window")
Signed-off-by: Takeshi Yoshimura
---
lib/librte_eal/linux/eal/eal_vfio.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/lib/librte_eal/linux/eal/eal_vfio.c
b/lib/librte_eal/linux/eal/eal
r.
I also fixed the order of ioctl for unregister and unmap. The ioctl
for unregister sometimes report device busy errors due to the
existence of mapped area.
Signed-off-by: Takeshi Yoshimura
---
lib/librte_eal/linux/eal/eal_vfio.c | 99 +++--
1 file changed, 67 insertions(+
because current ppc driver does not support VA
mode.
Theoretically, ppc can support VA mode, but I suspect that ppc with
VA mode may have performance issues to create a big DMA window
(VA often uses higher addresses than PA). So, I didn't change the
code to check device capability in ppc.
Si
sPAPR allows only page_shift from VFIO_IOMMU_SPAPR_TCE_GET_INFO ioctl.
However, Linux 4.17 or before returns incorrect page_shift for Power9.
I added the code for retrying creation of sPAPR DMA window.
Signed-off-by: Takeshi Yoshimura
---
lib/librte_eal/linux/eal/eal_vfio.c | 26
ioctl
for unregister sometimes report device busy errors due to the
existence of mapped area.
Signed-off-by: Takeshi Yoshimura
---
lib/librte_eal/linux/eal/eal_vfio.c | 154 +++-
1 file changed, 103 insertions(+), 51 deletions(-)
diff --git a/lib/librte_eal/linux/eal/eal
ioctl
for unregister sometimes report device busy errors due to the
existence of mapped area.
Signed-off-by: Takeshi Yoshimura
---
lib/librte_eal/linux/eal/eal_vfio.c | 154 +++-
1 file changed, 103 insertions(+), 51 deletions(-)
diff --git a/lib/librte_eal/linux/eal/eal
ioctl
for unregister sometimes report device busy errors due to the
existence of mapped area.
Signed-off-by: Takeshi Yoshimura
---
lib/librte_eal/linux/eal/eal_vfio.c | 154 +++-
1 file changed, 103 insertions(+), 51 deletions(-)
diff --git a/lib/librte_eal/linux/eal/eal
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