On Thu, Dec 3, 2015 at 6:08 AM, <> wrote:
> From: Madalin Bucur
>
> This patch series adds the Ethernet driver for the Freescale
> QorIQ Data Path Acceleration Architecture (DPAA).
Please fix your git-send-email configuration, so that your emails are
formatted properly. This is the From: header
e6500 has threads but does not have TLB write conditional. Thus,
the hugetlb code needs to take the same lock that the normal TLB miss
handlers take, to ensure that the tlbsx and tlbwe are atomic.
Signed-off-by: Scott Wood
---
v2: Fix trailing whitespace
arch/powerpc/mm/hugetlbpage-book3e.c |
e6500 has threads but does not have TLB write conditional. Thus,
the hugetlb code needs to take the same lock that the normal TLB miss
handlers take, to ensure that the tlbsx and tlbwe are atomic.
Signed-off-by: Scott Wood
---
arch/powerpc/mm/hugetlbpage-book3e.c | 46 ++
From: Joe Perches
Date: Fri, 04 Dec 2015 12:00:35 -0800
> On Fri, 2015-12-04 at 14:55 -0500, David Miller wrote:
>> From: Madalin Bucur
>> Date: Thu, 3 Dec 2015 15:49:43 +0200
>>
>> > @@ -0,0 +1,22 @@
>> > +menuconfig FSL_DPAA_ETH
>> > + tristate "DPAA Ethernet"
>> > + depends on FSL_SO
On Fri, 2015-12-04 at 14:55 -0500, David Miller wrote:
> From: Madalin Bucur
> Date: Thu, 3 Dec 2015 15:49:43 +0200
>
> > @@ -0,0 +1,22 @@
> > +menuconfig FSL_DPAA_ETH
> > + tristate "DPAA Ethernet"
> > + depends on FSL_SOC && FSL_BMAN && FSL_QMAN && FSL_FMAN
> > + select PHYLIB
> > +
From: Madalin Bucur
Date: Thu, 3 Dec 2015 15:49:43 +0200
> @@ -0,0 +1,22 @@
> +menuconfig FSL_DPAA_ETH
> + tristate "DPAA Ethernet"
> + depends on FSL_SOC && FSL_BMAN && FSL_QMAN && FSL_FMAN
> + select PHYLIB
> + select FSL_FMAN_MAC
I do not see the FSL_FMAN_MAC Kconfig symbol de
On Fri, 2015-12-04 at 11:04 +0300, Denis Kirjanov wrote:
> On 12/3/15, Scott Wood wrote:
> > On Wed, 2015-12-02 at 15:12 +0300, Denis Kirjanov wrote:
> > > On 11/20/15, Chenhui Zhao wrote:
> > > > On e6500, in the case of cpu hotplug, either thread in one core
> > > > may be the first thread init
On Friday 04 December 2015 17:30:31 Al Viro wrote:
> On Fri, Dec 04, 2015 at 06:13:54PM +0100, Arnd Bergmann wrote:
>
> > Yes, I think that would be best. Do you want me to send that patch, or do
> > you prefer to do it yourself? In theory that patch should also go into
> > stable
> > kernels, bu
On Fri, Dec 04, 2015 at 06:13:54PM +0100, Arnd Bergmann wrote:
> Yes, I think that would be best. Do you want me to send that patch, or do
> you prefer to do it yourself? In theory that patch should also go into stable
> kernels, but I suspect nobody who still owns a machine that is able to run
>
On Friday 04 December 2015 15:21:33 Al Viro wrote:
> On Fri, Dec 04, 2015 at 10:16:50AM +0100, Arnd Bergmann wrote:
>
> > I don't remember why we put in fasync support, but I have checked the libspe
> > implementation and found that it doesn't use it (not a big surprise there).
> > It always uses
On Fri, Dec 04, 2015 at 04:27:09PM +0100, Petr Mladek wrote:
> On Tue 2015-12-01 23:44:37, Russell King - ARM Linux wrote:
> > On Fri, Nov 27, 2015 at 12:09:30PM +0100, Petr Mladek wrote:
> > > What we can do, though, is to zap all printk locks. We already do this
> > > when a printk recursion is d
On Fri, 04 Dec 2015 18:02:58 +0100,
Jens Axboe wrote:
>
> On 12/04/2015 09:59 AM, Takashi Iwai wrote:
> > On Wed, 25 Nov 2015 20:01:47 +0100,
> > Hannes Reinecke wrote:
> >>
> >> On 11/25/2015 07:01 PM, Mike Snitzer wrote:
> >>> On Wed, Nov 25 2015 at 4:04am -0500,
> >>> Hannes Reinecke wrote:
>
On Wed, Nov 18 2015 at 09:46:38 PM, Michael Ellerman
wrote:
> In order to check for overlapping reserved memory regions, we first need
> to sort the array of memory regions. This is implemented using sort(),
> and a custom comparison function __rmem_cmp().
>
> Unfortunatley __rmem_cmp() doesn't w
On 12/04/2015 09:59 AM, Takashi Iwai wrote:
On Wed, 25 Nov 2015 20:01:47 +0100,
Hannes Reinecke wrote:
On 11/25/2015 07:01 PM, Mike Snitzer wrote:
On Wed, Nov 25 2015 at 4:04am -0500,
Hannes Reinecke wrote:
On 11/20/2015 04:28 PM, Ewan Milne wrote:
On Fri, 2015-11-20 at 15:55 +0100, Hanne
On Wed, 25 Nov 2015 20:01:47 +0100,
Hannes Reinecke wrote:
>
> On 11/25/2015 07:01 PM, Mike Snitzer wrote:
> > On Wed, Nov 25 2015 at 4:04am -0500,
> > Hannes Reinecke wrote:
> >
> >> On 11/20/2015 04:28 PM, Ewan Milne wrote:
> >>> On Fri, 2015-11-20 at 15:55 +0100, Hannes Reinecke wrote:
>
On Wed 2015-12-02 00:24:49, Jiri Kosina wrote:
> On Fri, 27 Nov 2015, Petr Mladek wrote:
>
> > MN10300 has its own implementation for entering and exiting NMI
> > handlers. It does not call nmi_enter() and nmi_exit(). Please, find
> > below an updated patch that adds printk_nmi_enter() and
> >
On Wed 2015-12-02 16:20:41, David Laight wrote:
> From: yalin wang
> > Sent: 30 November 2015 16:42
> > > On Nov 27, 2015, at 19:09, Petr Mladek wrote:
> > >
> > > Testing has shown that the backtrace sometimes does not fit
> > > into the 4kB temporary buffer that is used in NMI context.
> > >
> >
Using -mprofile-kernel on early boot code not only confuses the
checker but is also useless, as the infrastructure is not yet in
place. Proceed like with -pg (remove it from CFLAGS), equally with
time.o and ftrace itself.
* arch/powerpc/kernel/Makefile:
- remove -mprofile-kernel from low lev
On Wed 2015-12-02 13:45:16, Michael Ellerman wrote:
> On Fri, 2015-11-27 at 12:09 +0100, Petr Mladek wrote:
>
> > printk() takes some locks and could not be used a safe way in NMI
> > context.
> >
> > The chance of a deadlock is real especially when printing
> > stacks from all CPUs. This particu
Signed-off-by: Torsten Duwe
---
arch/powerpc/Kconfig | 5 +
arch/powerpc/kernel/Makefile | 1 +
2 files changed, 6 insertions(+)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 89b1a2a..62a3f54 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -163,6 +163
* create the appropriate files+functions
arch/powerpc/include/asm/livepatch.h
klp_check_compiler_support,
klp_arch_set_pc
arch/powerpc/kernel/livepatch.c with a stub for
klp_write_module_reloc
This is architecture-independent work in progress.
* introduce a f
This patch complements the "notrace" attribute for selected functions.
It adds -mprofile-kernel to the cc flags to be stripped from the command
line for code-patching.o and feature-fixups.o, in addition to "-pg"
Signed-off-by: Torsten Duwe
---
arch/powerpc/lib/Makefile | 4 ++--
1 file changed,
At least POWER7/8 have MMUs that don't completely autoload;
a normal, recoverable memory fault might pass through these functions.
If a dynamic tracer function causes such a fault, any of these functions
being traced with -mprofile-kernel may cause an endless recursion.
Signed-off-by: Torsten Duwe
* Makefile:
- globally use -mprofile-kernel in case it's configured
and available.
* arch/powerpc/Kconfig / kernel/trace/Kconfig:
- declare that ppc64le HAVE_MPROFILE_KERNEL and
HAVE_DYNAMIC_FTRACE_WITH_REGS, and use it.
Signed-off-by: Torsten Duwe
---
arch/powerpc/Kconfi
Convert ppc's arch_ftrace_update_code from its own function copy
to use the generic default functionality (without stop_machine --
our instructions are properly aligned and the replacements atomic ;)
With this we gain error checking and the much-needed function_trace_op
handling.
Signed-off-by: T
Implement FTRACE_WITH_REGS for powerpc64, on ELF ABI v2.
Initial work started by Vojtech Pavlik, used with permission.
* arch/powerpc/kernel/entry_64.S:
- Implement an effective ftrace_caller that works from
within the kernel binary as well as from modules.
* arch/powerpc/kernel/ftra
The gcc switch -mprofile-kernel, available for ppc64 on gcc > 4.8.5,
allows to call _mcount very early in the function, which low-level
ASM code and code patching functions need to consider.
Especially the link register and the parameter registers are still
alive and not yet saved into a new stack
On Tue 2015-12-01 23:44:37, Russell King - ARM Linux wrote:
> On Fri, Nov 27, 2015 at 12:09:30PM +0100, Petr Mladek wrote:
> > What we can do, though, is to zap all printk locks. We already do this
> > when a printk recursion is detected. This should be safe because
> > the system is crashing and t
Changes since v4:
* change comment style in entry_64.S to C89
(nobody is using assembler syntax comments there).
* the bool function restore_r2 shouldn't return 2,
that's a little confusing.
* Test whether the compiler supports -mprofile-kernel
and only then define CC_USING_MPROFI
On Fri, Dec 04, 2015 at 10:16:50AM +0100, Arnd Bergmann wrote:
> I don't remember why we put in fasync support, but I have checked the libspe
> implementation and found that it doesn't use it (not a big surprise there).
> It always uses epoll() to get notifications from spufs, and based on your
>
On Tue, Dec 01, 2015 at 12:44:15PM +0100, Christophe Leroy wrote:
> This patch adds the following algorithms to the talitos driver:
> * ecb(aes)
> * ctr(aes)
> * ecb(des)
> * cbc(des)
> * ecb(des3_ede)
>
> Signed-off-by: Christophe Leroy
Patch applied. Thanks.
--
Email: Herbert Xu
Home Page:
There is no need to worry about module and __init text disappearing
case, because that ftrace has a module notifier that is called when
a module is being unloaded and before the text goes away and this
code grabs the ftrace_lock mutex and removes the module functions
from the ftrace list, such that
Fix the following similar misleading comments of ftrace for arch
ia64/metag/powerpc/sh/x86:
Note: Due to modules and __init, code can
disappear and change, we need to protect against faulting
as well as code changing. We do this by using the
probe_kernel_* functions.
No real locking needed, th
> +/* PHY Control Register */
> +#define PHY_CR_PHY_RESET 0x8000
> +#define PHY_CR_SPEED0 0x2000
> +#define PHY_CR_ANE 0x1000
> +#define PHY_CR_RESET_AN0x0200
> +#define PHY_CR_FULLDUPLEX 0x0100
> +#define PHY_CR_SPEED1 0x0040
Reuse defines
From: Madalin Bucur
This patch series adds the Ethernet driver for the Freescale
QorIQ Data Path Acceleration Architecture (DPAA).
This version includes changes following the feedback received
on previous versions from Eric Dumazet, Bob Cochran, Joe Perches,
Paul Bolle, Joakim Tjernlund, Scott W
From: Madalin Bucur
Allow the selection of the transmission queue based on the CPU id.
The DPAA Ethernet driver defines a ndo_select_queue() callback for
optimal selection of the egress FQ. That will override the XPS support
for this netdevice and should provide a certain increase in performance.
From: Madalin Bucur
Add a series of counters to be exported through ethtool:
- add detailed counters for reception errors;
- add detailed counters for QMan enqueue reject events;
- count the number of fragmented skbs received from the stack;
- count all frames received on the Tx confirmation path
From: Madalin Bucur
Add support for basic ethtool operations.
Signed-off-by: Madalin Bucur
---
drivers/net/ethernet/freescale/dpaa/Makefile | 2 +-
.../net/ethernet/freescale/dpaa/dpaa_eth_common.c | 2 +
.../net/ethernet/freescale/dpaa/dpaa_eth_common.h | 3 +
drivers/net/ethern
From: Madalin Bucur
Introduce managed counterparts for alloc_percpu() and free_percpu().
Add devm_alloc_percpu() and devm_free_percpu() into the managed
interfaces list.
Signed-off-by: Madalin Bucur
Tested-by: Madalin-Cristian Bucur
---
Documentation/driver-model/devres.txt | 4 +++
drivers/
From: Madalin Bucur
Export Frame Queue and Buffer Pool IDs through sysfs.
Signed-off-by: Madalin Bucur
---
drivers/net/ethernet/freescale/dpaa/Makefile | 2 +-
drivers/net/ethernet/freescale/dpaa/dpaa_eth.c | 2 +
drivers/net/ethernet/freescale/dpaa/dpaa_eth.h | 3 +
.../ne
From: Madalin Bucur
Add trace points on the hot processing path.
Signed-off-by: Ruxandra Ioana Radulescu
---
drivers/net/ethernet/freescale/dpaa/Makefile | 1 +
drivers/net/ethernet/freescale/dpaa/dpaa_eth.c | 12 ++
drivers/net/ethernet/freescale/dpaa/dpaa_eth.h | 4 +
.../
From: Madalin Bucur
This introduces the Freescale Data Path Acceleration Architecture
(DPAA) Ethernet driver (dpaa_eth) that builds upon the DPAA QMan,
BMan, PAMU and FMan drivers to deliver Ethernet connectivity on
the Freescale DPAA QorIQ platforms.
Signed-off-by: Madalin Bucur
---
drivers/n
From: Madalin Bucur
Add support for Scatter/Gather (S/G) frames. The FMan can place
the frame content into multiple buffers and provide a S/G Table
(SGT) into one first buffer with references to the others.
Signed-off-by: Madalin Bucur
---
.../net/ethernet/freescale/dpaa/dpaa_eth_common.c |
On Tue, 2015-12-01 at 16:08 +1100, Rashmica Gupta wrote:
> This test does a fork syscall inside a transaction. Basic sniff test
> to see
> if we can enter the kernel during a transaction.
Can you add this description to the top of the test case as well?
Mikey
>
> Signed-off-by: Rashmica Gupta
On Friday 04 December 2015 06:38:25 Al Viro wrote:
> On cross-builds the __poll_t annotations had caught something interesting:
> void spufs_mfc_callback(struct spu *spu)
> {
>
> mask = 0;
> if (free_elements & 0x)
> mask |= POL
On Thu, Dec 03, 2015 at 05:24:45PM +0100, Petr Mladek wrote:
> > +++ b/arch/powerpc/include/asm/livepatch.h
> > @@ -0,0 +1,45 @@
> [...]
> > +#include
> > +#include
> > +
> > +#ifdef CONFIG_LIVEPATCH
> > +static inline int klp_check_compiler_support(void)
> > +{
> > +#if !defined(_CALL_ELF) || _C
On Thu, Dec 03, 2015 at 05:20:08PM +0100, Petr Mladek wrote:
>
> IMHO, we should not define CC_USING_MPROFILE_KERNEL if it is not
> supported by the compiler.
Yes, true.
> I took inspiration from the CC_USING_FENTRY handling in
> linux/Makefile. The following code worked for me:
>
> CC_USING_MPRO
On 12/3/15, Scott Wood wrote:
> On Wed, 2015-12-02 at 15:12 +0300, Denis Kirjanov wrote:
>> On 11/20/15, Chenhui Zhao wrote:
>> > On e6500, in the case of cpu hotplug, either thread in one core
>> > may be the first thread initilzing the TLB1. The subsequent threads
>> > must not setup it again.
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