Hi Jakub
On Fri, 6 Oct 2023 15:08:10 -0700
Jakub Kicinski wrote:
> On Thu, 28 Sep 2023 09:06:42 +0200 Herve Codina wrote:
> > +menu "Framer Subsystem"
> > +
> > +config GENERIC_FRAMER
> > + bool "Framer Core"
> > + help
> > + Generic Framer support.
> > + A framer is a component in c
Hello Pingfan,
With this patch series applied, the kdump kernel fails to boot on
powerpc with nr_cpus=1.
Console logs:
---
[root]# echo c > /proc/sysrq-trigger
[ 74.783235] sysrq: Trigger a crash
[ 74.783244] Kernel panic - not syncing: sysrq triggered crash
[ 74.783252
On 09/10/23 5:00 pm, Pingfan Liu wrote:
If the boot_cpuid is smaller than nr_cpus, it requires extra effort to
ensure the boot_cpu is in cpu_present_mask. This can be achieved by
reserving the last quota for the boot cpu.
Note: the restriction on nr_cpus will be lifted with more effort in the
Hi Jakub,
On Fri, 6 Oct 2023 15:02:52 -0700
Jakub Kicinski wrote:
> On Thu, 28 Sep 2023 09:06:44 +0200 Herve Codina wrote:
> > + for (i = 0; i < count; i++) {
> > + (audio_devs + i)->name = "framer-codec";
> > + (audio_devs + i)->of_compatible = compatible;
> > +
Hello Pingfan,
With this patch series applied, the kdump kernel fails to boot on
powerpc with nr_cpus=1.
Console logs:
---
[root]# echo c > /proc/sysrq-trigger
[ 74.783235] sysrq: Trigger a crash
[ 74.783244] Kernel panic - not syncing: sysrq triggered crash
[ 74.783252
On Mon, Oct 09, 2023 at 11:18:45PM +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann
>
> After the vga console no longer relies on global screen_info, there are
> only two remaining use cases:
>
> - on the x86 architecture, it is used for multiple boot methods
>(bzImage, EFI, Xen, kexec) to
Hi Arnd,
On Mon, Oct 9, 2023 at 11:19 PM Arnd Bergmann wrote:
> From: Arnd Bergmann
>
> The list of dependencies here is phrased as an opt-out, but this is missing
> a lot of architectures that don't actually support VGA consoles, and some
> of the entries are stale:
>
> - powerpc used to suppo
On 09/10/23 5:00 pm, Pingfan Liu wrote:
*** Idea ***
For kexec -p, the boot cpu can be not the cpu0, this causes the problem
of allocating memory for paca_ptrs[]. However, in theory, there is no
requirement to assign cpu's logical id as its present sequence in the
device tree. But there is som
Christophe Leroy writes:
> Booting mpc85xx_defconfig kernel on QEMU leads to:
What machine/CPU model are you using for that?
I tried ppce500/e500 and that is working OK for me, ie. boots to
userspace and I see math instructions being emulated via the emulated
stats.
cheers
> Bad trap at PC: fe
Le 10/10/2023 à 12:45, Michael Ellerman a écrit :
> Christophe Leroy writes:
>> Booting mpc85xx_defconfig kernel on QEMU leads to:
>
> What machine/CPU model are you using for that?
If I remember correctly, it was machine mpc8544ds.
Christophe
>
> I tried ppce500/e500 and that is working OK
Eddie James writes:
> On 10/9/23 08:14, Michael Ellerman wrote:
>> Eddie James writes:
>>> Hi,
>>>
>>> I'm attempting to run linux 6.1 on my FSP2, but my kernel crashes
>>> attempting to get into userspace. The init script works, but the first
>>> binary (mount) I run results in oops. Can anyone
Christophe Leroy writes:
> Le 09/10/2023 à 17:12, Eddie James a écrit :
>>
>> On 10/9/23 08:14, Michael Ellerman wrote:
>>> Eddie James writes:
Hi,
I'm attempting to run linux 6.1 on my FSP2, but my kernel crashes
attempting to get into userspace. The init script works, but t
On 09/10/2023 16:37, Christian Marangi wrote:
Now that napi_schedule return a bool, we can drop napi_reschedule that
does the same exact function. The function comes from a very old commit
bfe13f54f502 ("ibm_emac: Convert to use napi_struct independent of struct
net_device") and the purpose is
On 09/10/23 10:30 am, Athira Rajeev wrote:
Simple expression parser test fails in powerpc as below:
4: Simple expression parser
test child forked, pid 170385
Using CPUID 004e2102
division by zero
syntax error
syntax error
FAILED tests/expr.c:65 parse test fail
Eddie reported that newer kernels were crashing during boot on his 476
FSP2 system:
kernel tried to execute user page (b7ee2000) - exploit attempt? (uid: 0)
BUG: Unable to handle kernel instruction fetch
Faulting instruction address: 0xb7ee2000
Oops: Kernel access of bad area, sig: 11 [#1]
On Mon, Oct 09, 2023 at 11:18:36PM +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann
>
> v3 changelog
>
> No real changes, just rebased for context changes, and picked up the Acks.
>
> This now conflicts with the ia64 removal and introduces one new dependency
> on IA64, but that is harmless and
https://bugzilla.kernel.org/show_bug.cgi?id=216156
--- Comment #15 from Michael Ellerman (mich...@ellerman.id.au) ---
Yeah, facepalm. Calling kmemleak_no_scan() later doesn't help, because it's the
early allocation that is ignored, leading to the warning.
So we can just drop the call to kmemleak_
On Tue, Oct 10, 2023 at 01:48:07PM +0200, Daniel Vetter wrote:
> On Mon, Oct 09, 2023 at 11:18:36PM +0200, Arnd Bergmann wrote:
> > From: Arnd Bergmann
> >
> > v3 changelog
> >
> > No real changes, just rebased for context changes, and picked up the Acks.
> >
> > This now conflicts with the ia6
Le 10/10/2023 à 13:47, Michael Ellerman a écrit :
> Eddie reported that newer kernels were crashing during boot on his 476
> FSP2 system:
>
>kernel tried to execute user page (b7ee2000) - exploit attempt? (uid: 0)
>BUG: Unable to handle kernel instruction fetch
>Faulting instruction
On Wed, Sep 27, 2023 at 02:46:21PM +0200, Manivannan Sadhasivam wrote:
> On Tue, Sep 26, 2023 at 10:04:45AM -0400, Frank Li wrote:
> > From: Guanhua Gao
> >
> > Set DMA mask and coherent DMA mask to enable 64-bit addressing.
> >
> > Signed-off-by: Guanhua Gao
> > Signed-off-by: Hou Zhiqiang
>
On Wed, Oct 04, 2023 at 10:23:51AM -0400, Frank Li wrote:
> On Fri, Sep 15, 2023 at 02:43:05PM -0400, Frank Li wrote:
> > ls1021a add suspend/resume support.
> >
> > Signed-off-by: Frank Li
> > ---
>
> ping
>
> Frank
Ping
Frank
>
> > drivers/pci/controller/dwc/pci-layerscape.c | 88 +++
On Tue, 26 Sep 2023 10:04:45 -0400, Frank Li wrote:
> Set DMA mask and coherent DMA mask to enable 64-bit addressing.
>
>
Read this:
https://lore.kernel.org/linux-pci/20171026223701.ga25...@bhelgaas-glaptop.roam.corp.google.com
Find the issue with the commit log (that I fixed).
This does not a
On Tue, Oct 10, 2023 at 10:20:12AM -0400, Frank Li wrote:
> On Wed, Oct 04, 2023 at 10:23:51AM -0400, Frank Li wrote:
> > On Fri, Sep 15, 2023 at 02:43:05PM -0400, Frank Li wrote:
> > > ls1021a add suspend/resume support.
> > >
> > > Signed-off-by: Frank Li
> > > ---
> >
> > ping
> >
> > Frank
On Tue, Oct 10, 2023 at 05:44:23PM +0200, Lorenzo Pieralisi wrote:
> On Tue, 26 Sep 2023 10:04:45 -0400, Frank Li wrote:
> > Set DMA mask and coherent DMA mask to enable 64-bit addressing.
> >
> >
>
> Read this:
> https://lore.kernel.org/linux-pci/20171026223701.ga25...@bhelgaas-glaptop.roam.cor
This series adds support for SBI debug console extension in KVM RISC-V
and Linux RISC-V.
To try these patches with KVM RISC-V, use KVMTOOL from riscv_sbi_dbcn_v1
branch at: https://github.com/avpatel/kvmtool.git
These patches can also be found in the riscv_sbi_dbcn_v1 branch at:
https://github.co
We add SBI debug console extension related defines/enum to the
asm/sbi.h header.
Signed-off-by: Anup Patel
---
arch/riscv/include/asm/sbi.h | 7 +++
1 file changed, 7 insertions(+)
diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h
index 5b4a1bf5f439..12dfda6bb924 1006
We will be implementing SBI DBCN extension for KVM RISC-V so let
us change the KVM RISC-V SBI specification version to v2.0.
Signed-off-by: Anup Patel
---
arch/riscv/include/asm/kvm_vcpu_sbi.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/riscv/include/asm/kvm_vcpu_sbi
The SBI DBCN extension needs to be emulated in user-space so let
us forward console_puts() call to user-space.
Signed-off-by: Anup Patel
---
arch/riscv/include/asm/kvm_vcpu_sbi.h | 1 +
arch/riscv/include/uapi/asm/kvm.h | 1 +
arch/riscv/kvm/vcpu_sbi.c | 4
arch/riscv/kvm
We extend the existing RISC-V SBI earlycon support to use the new
RISC-V SBI debug console extension.
Signed-off-by: Anup Patel
---
drivers/tty/serial/Kconfig | 2 +-
drivers/tty/serial/earlycon-riscv-sbi.c | 35 ++---
2 files changed, 32 insertions(+), 5 deleti
From: Atish Patra
RISC-V SBI specification supports advanced debug console
support via SBI DBCN extension.
Extend the HVC SBI driver to support it.
Signed-off-by: Atish Patra
Signed-off-by: Anup Patel
---
drivers/tty/hvc/Kconfig | 2 +-
drivers/tty/hvc/hvc_riscv_sbi.c | 80 +
Let us enable SBI based earlycon support in defconfigs for both RV32
and RV64 so that "earlycon=sbi" can be used again.
Signed-off-by: Anup Patel
---
arch/riscv/configs/defconfig | 1 +
arch/riscv/configs/rv32_defconfig | 1 +
2 files changed, 2 insertions(+)
diff --git a/arch/riscv/config
On Tue, Oct 10, 2023 at 10:35:02PM +0530, Anup Patel wrote:
> --- a/drivers/tty/hvc/hvc_riscv_sbi.c
> +++ b/drivers/tty/hvc/hvc_riscv_sbi.c
> @@ -15,6 +15,7 @@
>
> #include "hvc_console.h"
>
> +#ifdef CONFIG_RISCV_SBI_V01
Please no #ifdef in a .c file, that's not a good style for Linux code a
On Tue, Oct 10, 2023 at 10:34:59PM +0530, Anup Patel wrote:
> We will be implementing SBI DBCN extension for KVM RISC-V so let
> us change the KVM RISC-V SBI specification version to v2.0.
>
> Signed-off-by: Anup Patel
> ---
> arch/riscv/include/asm/kvm_vcpu_sbi.h | 2 +-
> 1 file changed, 1 ins
On Tue, Oct 10, 2023 at 10:35:00PM +0530, Anup Patel wrote:
> The SBI DBCN extension needs to be emulated in user-space
Why?
> so let
> us forward console_puts() call to user-space.
What could go wrong!
Why does userspace have to get involved in a console message? Why is
this needed at all? T
On Tue, Oct 10, 2023 at 10:35:01PM +0530, Anup Patel wrote:
> We extend the existing RISC-V SBI earlycon support to use the new
> RISC-V SBI debug console extension.
>
> Signed-off-by: Anup Patel
> ---
> drivers/tty/serial/Kconfig | 2 +-
> drivers/tty/serial/earlycon-riscv-sbi.c |
Le 28/09/2023 à 21:48, Hari Bathini a écrit :
> patch_instruction() entails setting up pte, patching the instruction,
> clearing the pte and flushing the tlb. If multiple instructions need
> to be patched, every instruction would have to go through the above
> drill unnecessarily. Instead, introd
https://bugzilla.kernel.org/show_bug.cgi?id=216156
--- Comment #16 from Erhard F. (erhar...@mailbox.org) ---
Your newest patch fixes the issue. Thanks!
--
You may reply to this email to add a comment.
You are receiving this mail because:
You are watching the assignee of the bug.
On Tue, 03 Oct 2023 13:13:09 -0500, Rob Herring wrote:
> (Got a bunch of bounces on the first try. Something weird going on with
> the To header best I can tell. Retrying with git-send-email instead of
> b4.)
>
> This is a series is part of ongoing clean-ups related to device
> matching and DT rel
On Wed, 04 Oct 2023 10:58:04 -0500, Rob Herring wrote:
> (trimmed the recipient list due to bounces on v1)
>
> This is a series is part of ongoing clean-ups related to device
> matching and DT related implicit includes. Essentially of_device.h has
> a bunch of implicit includes and generally isn't
On Fri, 06 Oct 2023 15:09:09 -0500, Rob Herring wrote:
> (trimmed the recipient list due to bounces on v1)
>
> This is a series is part of ongoing clean-ups related to device
> matching and DT related implicit includes. Essentially of_device.h has
> a bunch of implicit includes and generally isn't
_passthru:1;
+ unsigned int scan_complete:1;
int scan_timeout;
int events_to_log;
#define IBMVFC_AE_LINKUP 0x0001
---
base-commit: b6f2e063017b92491976a40c32a0e4b3c13e7d2f
change-id: 20231010-ibmvfc-fix-bitfields-type-971a07c64ec6
Best regards,
--
Nathan Chancellor
d int do_enquiry:1;
> + unsigned int aborting_passthru:1;
> + unsigned int scan_complete:1;
> int scan_timeout;
> int events_to_log;
> #define IBMVFC_AE_LINKUP 0x0001
>
> ---
> base-commit: b6f2e063017b92491976a40c32a0e4b3c13e7d2f
> change-id: 20231010-ibmvfc-fix-bitfields-type-971a07c64ec6
>
> Best regards,
> --
> Nathan Chancellor
>
>
--
Thanks,
~Nick Desaulniers
: eddc90ea2af5933249ea1a78119f2c8ef8d07156
patch link:
https://lore.kernel.org/r/20231006-papr-sys_rtas-vs-lockdown-v1-5-3a36bfb66e2e%40linux.ibm.com
patch subject: [PATCH 5/7] powerpc/pseries/papr-sysparm: expose chardev API to
user space
config: powerpc64-randconfig-002-20231010
(https://download.01.org
Hi Sourabh,
kernel test robot noticed the following build errors:
[auto build test ERROR on powerpc/next]
[also build test ERROR on powerpc/fixes linus/master v6.6-rc5 next-20231010]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to
On Mon, Oct 02, 2023 at 01:30:35PM +0200, Joel Granados via B4 Relay wrote:
> V3:
> * Removed the ia64 patch to avoid conflicts with the ia64 removal
> * Rebased onto v6.6-rc4
> * Kept/added the trailing comma for the ctl_table arrays. This was a comment
> that we received "drivers/*" patch set.
On Mon, Oct 02, 2023 at 10:55:17AM +0200, Joel Granados via B4 Relay wrote:
> Changes in v2:
> - Left the dangling comma in the ctl_table arrays.
> - Link to v1:
> https://lore.kernel.org/r/20230928-jag-sysctl_remove_empty_elem_drivers-v1-0-e59120fca...@samsung.com
Thanks! Pushed onto sysctl-next
On Mon, Oct 09, 2023 at 11:19:57PM +, Justin Stitt wrote:
> `strncpy` is deprecated for use on NUL-terminated destination strings
> [1] and as such we should prefer more robust and less ambiguous string
> interfaces.
>
> NUL-padding is not required as the buffer is already memset to 0:
> |
On Tue, Oct 10, 2023 at 02:38:40PM +0530, Sourabh Jain wrote:
> Hello Pingfan,
>
> >
> > With this patch series applied, the kdump kernel fails to boot on
> > powerpc with nr_cpus=1.
> >
> > Console logs:
> > ---
> > [root]# echo c > /proc/sysrq-trigger
> > [ 74.783235] sysrq:
On Tue, Oct 10, 2023 at 01:56:13PM +0530, Hari Bathini wrote:
>
>
> On 09/10/23 5:00 pm, Pingfan Liu wrote:
> > If the boot_cpuid is smaller than nr_cpus, it requires extra effort to
> > ensure the boot_cpu is in cpu_present_mask. This can be achieved by
> > reserving the last quota for the boot
On Tue, Oct 10, 2023 at 04:07:00PM +0530, Hari Bathini wrote:
>
>
> On 09/10/23 5:00 pm, Pingfan Liu wrote:
> > *** Idea ***
> > For kexec -p, the boot cpu can be not the cpu0, this causes the problem
> > of allocating memory for paca_ptrs[]. However, in theory, there is no
> > requirement to ass
gcc
arc allnoconfig gcc
arc allyesconfig gcc
arc defconfig gcc
arc randconfig-001-20231010 gcc
arm allmodconfig
Sparse reports an endian mismatch in hvc_get_chars().
At first it seemed like the retbuf should be __be64[], but actually
retbuf holds serialized registers returned by the hypervisor call, so
it's correctly CPU endian typed.
Instead, it is the be64_to_cpu() that's misleading. The intent is to do
Sparse reports an invalid endian cast here. The code is written for
big endian platforms, so le32_to_cpu() acts as a byte reversal.
This file is checked by sparse on a little endian build though, so
replace the reverse function with the dedicated swab32() function to
better express the intent of t
Sparse reports a size mismatch in the endian swap. The Opal
implementation[1] passes the value as a __be64, and the receiving
variable out_qsize is a u64, so the use of be32_to_cpu() appears to be
an error.
[1]: https://github.com/open-power/skiboot/blob/80e2b1dc73/hw/xive.c#L3854
Fixes: 88ec6b93
There are many Sparse warnings in the kernel, including the powerpc
directory. This series provides fixes for some low-hanging fruit found
when trying to triage the warnings earlier this year. It addresses about
100 warnings (many have the same root cause).
I know there's concerns about making it
Sparse reports several uses of 0 for pointer arguments and comparisons.
Replace with NULL to better convey the intent. Remove entirely if a
comparison to follow the kernel style of implicit boolean conversions.
Signed-off-by: Benjamin Gray
---
arch/powerpc/kernel/setup_64.c| 2 +-
arch/p
Sparse reports several function implementations annotated with extern.
This is clearly incorrect, likely just copied from an actual extern
declaration in another file.
Fix the sparse warnings by removing extern.
Signed-off-by: Benjamin Gray
---
arch/powerpc/kernel/iommu.c | 8
arc
Sparse reports an endian mismatch with args to opal_int_get_xirr().
Checking the skiboot source[1] shows the function takes a __be32*
(as expected), so update the function declaration to reflect this.
[1]: https://github.com/open-power/skiboot/blob/80e2b1dc73/hw/xive.c#L3479
Signed-off-by: Benjam
Sparse reports dereferencing an __iomem pointer. These routines
are clearly low level handlers for IO memory, so force cast away
the __iomem annotation to tell sparse the dereferences are safe.
Signed-off-by: Benjamin Gray
---
arch/powerpc/kernel/io.c | 12 ++--
1 file changed, 6 inserti
Sparse reports a warning when casting to an int. There is no need to
cast in the first place, so drop them.
Signed-off-by: Benjamin Gray
---
arch/powerpc/kernel/eeh_driver.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/kernel/eeh_driver.c b/arch/powerpc/ke
Sparse reports dereference of a __user pointer. copy_mc_to_user() takes
a __user pointer, verifies it, then calls the generic copy routine
copy_mc_generic().
As we have verified the pointer, cast out the __user annotation when
passing to copy_mc_generic().
Signed-off-by: Benjamin Gray
---
arch/
Sparse reports an endianness error with the else case of
val = (cpu_endian ? be64_to_cpu(reg_entry->reg_val) :
(u64)(reg_entry->reg_val));
This is a safe operation because the code is explicitly working with
dynamic endianness, so add the __force annotation to tell Sparse to
ignore it.
Sparse reports endianness mismatches in the KVM shared regs getter and
setter helpers.
This code has dynamic endianness behind a safe interface, so a force is
warranted here to tell sparse this is OK.
Signed-off-by: Benjamin Gray
---
arch/powerpc/include/asm/kvm_ppc.h | 8
1 file chang
On 10/9/23 1:09 PM, Nathan Lynch wrote:
Hi Haren,
Haren Myneni writes:
The hypervisor returns migration failure if all VAS windows are not
closed. During pre-migration stage, vas_migration_handler() sets
migration_in_progress flag and closes all windows from the list.
The allocate VAS windo
On Tue, Oct 10, 2023 at 10:42 PM Greg Kroah-Hartman
wrote:
>
> On Tue, Oct 10, 2023 at 10:35:02PM +0530, Anup Patel wrote:
> > --- a/drivers/tty/hvc/hvc_riscv_sbi.c
> > +++ b/drivers/tty/hvc/hvc_riscv_sbi.c
> > @@ -15,6 +15,7 @@
> >
> > #include "hvc_console.h"
> >
> > +#ifdef CONFIG_RISCV_SBI_V0
On Tue, Oct 10, 2023 at 10:46 PM Greg Kroah-Hartman
wrote:
>
> On Tue, Oct 10, 2023 at 10:35:01PM +0530, Anup Patel wrote:
> > We extend the existing RISC-V SBI earlycon support to use the new
> > RISC-V SBI debug console extension.
> >
> > Signed-off-by: Anup Patel
> > ---
> > drivers/tty/seria
Hi,
I have a system where I need to handle an HDLC interface and some audio
data.
The HDLC data are transferred using a TDM bus on which a PEF2256
(E1/T1 framer) is present. The PEF2256 transfers data from/to the TDM
bus to/from the E1 line. This PEF2256 is connected to a PowerQUICC SoC
for the c
Running sparse (make C=1) on qmc.c raises a lot of warning such as:
...
warning: incorrect type in assignment (different address spaces)
expected struct cpm_buf_desc [usertype] *[noderef] __iomem bd
got struct cpm_buf_desc [noderef] [usertype] __iomem *txbd_free
...
Indeed, some va
Running sparse (make C=1) on tsa.c raises a lot of warning such as:
--- 8< ---
warning: incorrect type in assignment (different address spaces)
expected void *[noderef] si_regs
got void [noderef] __iomem *
--- 8< ---
Indeed, some variable were declared 'type *__iomem var' instead o
The qmc_chan_reset_rx() set the is_rx_stopped flag. This leads to an
inconsistent state in the following sequence.
qmc_chan_stop()
qmc_chan_reset()
Indeed, after the qmc_chan_reset() call, the channel must still be
stopped. Only a qmc_chan_start() call can move the channel from stopped
stat
In HDLC mode, some status flags related to the data read transfer can be
set by the hardware and need to be known by a QMC consumer for further
analysis.
Extend the API in order to provide these transfer status flags at the
read complete() call.
In TRANSPARENT mode, these flags have no meaning. K
The inline function specifier is present on some functions but it is
better to let the compiler decide inlining or not these functions.
Remove inline specifiers.
Fixes: 3178d58e0b97 ("soc: fsl: cpm1: Add support for QMC")
Signed-off-by: Herve Codina
Suggested-by: Andrew Lunn
Reviewed-by: Christ
The given example mentions the 'fsl,mode' property whereas the
correct property name, the one described, is 'fsl,operational-mode'.
Fix the example to use the correct property name.
Fixes: a9b121327c93 ("dt-bindings: soc: fsl: cpm_qe: Add QMC controller")
Signed-off-by: Herve Codina
Acked-by: Co
Additional properties in child node should not be allowed.
Prevent them adding 'additionalProperties: false'
Signed-off-by: Herve Codina
Acked-by: Conor Dooley
Acked-by: Rob Herring
---
.../devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-scc-qmc.yaml | 1 +
1 file changed, 1 insertion(+)
dif
The QMC (QUICC mutichannel controller) is a controller present in some
PowerQUICC SoC such as MPC885.
The QMC HDLC uses the QMC controller to transfer HDLC data.
Additionally, a framer can be connected to the QMC HDLC.
If present, this framer is the interface between the TDM bus used by the
QMC HD
QMC child devices support is needed to avoid orphan DT nodes that use a
simple DT phandle to reference a QMC channel.
Allow to instantiate child devices and also extend the API to get the
qmc_chan using a child device.
Signed-off-by: Herve Codina
---
drivers/soc/fsl/qe/qmc.c | 91 ++
The QMC HDLC driver provides support for HDLC using the QMC (QUICC
Multichannel Controller) to transfer the HDLC data.
Signed-off-by: Herve Codina
Reviewed-by: Christophe Leroy
---
drivers/net/wan/Kconfig| 12 +
drivers/net/wan/Makefile | 1 +
drivers/net/wan/fsl_qmc_hdlc.c | 4
After contributing the driver, add myself as the maintainer for the
Freescale QMC HDLC driver.
Signed-off-by: Herve Codina
---
MAINTAINERS | 7 +++
1 file changed, 7 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 90f13281d297..8b987f2c8633 100644
--- a/MAINTAINERS
+++ b/MAINTAIN
Available timeslots masks define timeslots available for the related
channel. These timeslots are defined by the QMC binding.
Timeslots used are initialized to available timeslots but can be a
subset of available timeslots.
This prepares the dynamic timeslots management (ie. changing timeslots
at
qmc_setup_tsa* are called once at initialisation.
They initialize the QMC TSA table.
In order to introduce setup function later on for dynamic timeslots
management, rename the function to avoid later confusion.
Signed-off-by: Herve Codina
Reviewed-by: Christophe Leroy
---
drivers/soc/fsl/qe/qmc
Introduce the qmc_chan_setup_tsa* functions to setup entries related
to the given channel.
Use them during QMC channels setup.
Signed-off-by: Herve Codina
Reviewed-by: Christophe Leroy
---
drivers/soc/fsl/qe/qmc.c | 161 ++-
1 file changed, 125 insertions(+),
The newly introduced qmc_chan_setup_tsa* functions check that the
channel entries are not already used.
These checks are also performed by qmc_check_chans() and are no more
needed.
Remove them from qmc_check_chans().
Signed-off-by: Herve Codina
Reviewed-by: Christophe Leroy
---
drivers/soc/fsl
The timeslots checked in qmc_check_chans() are the timeslots used.
With the introduction of the available timeslots, the used timeslots
are a subset of the available timeslots. The timeslots checked during
the qmc_check_chans() call should be the available ones.
Simply update and check the availab
In order to allow runtime timeslot route changes, disabling channel TSA
entries needs to be supported.
Add support for this new feature.
Signed-off-by: Herve Codina
Reviewed-by: Christophe Leroy
---
drivers/soc/fsl/qe/qmc.c | 20 +++-
1 file changed, 11 insertions(+), 9 deletio
The Tx and Rx entries for a given channel are set in one function.
In order to modify Rx entries and Tx entries independently of one other,
split this function in one for the Rx part and one for the Tx part.
Signed-off-by: Herve Codina
Reviewed-by: Christophe Leroy
---
drivers/soc/fsl/qe/qmc.c
In order to support runtime timeslot route changes, some operations will
be different according the routing table used (common Rx and Tx table or
one table for Rx and one for Tx).
The is_tsa_64rxtx flag is introduced to avoid extra computation to
determine the table format each time we need it.
It
In order to support runtime timeslot route changes, enable the
channel timeslot entries at channel start() and disable them at
channel stop().
Signed-off-by: Herve Codina
Reviewed-by: Christophe Leroy
---
drivers/soc/fsl/qe/qmc.c | 175 ---
1 file changed, 16
Timeslots setting is done at channel start() and stop().
There is no more need to do that during setup_chan().
Simply remove timeslot setting from setup_chan().
Signed-off-by: Herve Codina
Reviewed-by: Christophe Leroy
---
drivers/soc/fsl/qe/qmc.c | 28
1 file chan
Introduce qmc_chan_{get,set}_ts_info() function to allow timeslots
modification at runtime.
The modification is provided using qmc_chan_set_ts_info() and will be
applied on next qmc_chan_start().
qmc_chan_set_ts_info() must be called with the channel rx and/or tx
stopped.
Signed-off-by: Herve Cod
QMC channels support runtime timeslots changes but nothing is done at
the QMC HDLC driver to handle these changes.
Use existing IFACE ioctl in order to configure the timeslots to use.
Signed-off-by: Herve Codina
Reviewed-by: Christophe Leroy
---
drivers/net/wan/fsl_qmc_hdlc.c | 169 +++
A framer is a component in charge of an E1/T1 line interface.
Connected usually to a TDM bus, it converts TDM frames to/from E1/T1
frames. It also provides information related to the E1/T1 line.
The framer framework provides a set of APIs for the framer drivers
(framer provider) to create/destroy
The Lantiq PEF2256 is a framer and line interface component designed to
fulfill all required interfacing between an analog E1/T1/J1 line and the
digital PCM system highway/H.100 bus.
Signed-off-by: Herve Codina
Reviewed-by: Christophe Leroy
Reviewed-by: Rob Herring
---
.../bindings/net/lantiq,
The Lantiq PEF2256 is a framer and line interface component designed to
fulfill all required interfacing between an analog E1/T1/J1 line and the
digital PCM system highway/H.100 bus.
Signed-off-by: Herve Codina
Reviewed-by: Christophe Leroy
Reviewed-by: Linus Walleij
---
drivers/net/wan/framer
The Lantiq PEF2256 is a framer and line interface component designed to
fulfill all required interfacing between an analog E1/T1/J1 line and the
digital PCM system highway/H.100 bus.
This kind of component can be found in old telecommunication system.
It was used to digital transmission of many si
After contributing the driver, add myself as the maintainer for the
Lantiq PEF2256 driver.
Signed-off-by: Herve Codina
Reviewed-by: Christophe Leroy
---
MAINTAINERS | 8
1 file changed, 8 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 8b987f2c8633..d8f2433e326e 100644
---
The framer codec interacts with a framer.
It allows to use some of the framer timeslots as audio channels to
transport audio data over the framer E1/T1/J1 lines.
It also reports line carrier detection events through the ALSA jack
detection feature.
Signed-off-by: Herve Codina
Reviewed-by: Christo
Add framer support in the fsl_qmc_hdlc driver in order to be able to
signal carrier changes to the network stack based on the framer status
Also use this framer to provide information related to the E1/T1 line
interface on IF_GET_IFACE and configure the line interface according to
IF_IFACE_{E1,T1}
On Tue, Oct 10, 2023 at 10:43 PM Greg Kroah-Hartman
wrote:
>
> On Tue, Oct 10, 2023 at 10:34:59PM +0530, Anup Patel wrote:
> > We will be implementing SBI DBCN extension for KVM RISC-V so let
> > us change the KVM RISC-V SBI specification version to v2.0.
> >
> > Signed-off-by: Anup Patel
> > ---
Since commit d3c511ac1d72 ("powerpc/cpm: Remove
!CONFIG_PPC_CPM_NEW_BINDING code") cpm_dp...() macros have no added
value anymore.
Last user of those macros were fixed by commit 5e6cb39a256d ("net:
fs_enet: Use cpm_muram_xxx() functions instead of cpm_dpxxx() macros")
Remove them.
Signed-off-by:
On Tue, Oct 10, 2023 at 10:45 PM Greg Kroah-Hartman
wrote:
>
> On Tue, Oct 10, 2023 at 10:35:00PM +0530, Anup Patel wrote:
> > The SBI DBCN extension needs to be emulated in user-space
>
> Why?
The SBI debug console is similar to a console port available to
KVM Guest so the KVM user space tool (i
1 - 100 of 101 matches
Mail list logo
