On Mon, Nov 23, 2020 at 04:55:26PM +0900, Bongsu Jeon wrote:
> Since S3FWRN82 NFC Chip, The UART interface can be used.
> S3FWRN82 supports I2C and UART interface.
>
> Signed-off-by: Bongsu Jeon
> ---
> .../bindings/net/nfc/samsung,s3fwrn5.yaml | 28 +--
> 1 file changed, 26
Looks good,
Reviewed-by: Christoph Hellwig
On Fri, Nov 20, 2020 at 11:19:34PM +0100, Lorenzo Bianconi wrote:
> Introduce page_pool_put_page_bulk() entry into the API section of
> page_pool.rst
>
> Signed-off-by: Lorenzo Bianconi
> ---
> Documentation/networking/page_pool.rst | 8
> 1 file changed, 8 insertions(+)
>
> diff --git
On Sun, 22 Nov 2020 22:17:16 -0500
Jarod Wilson wrote:
> Have run into a case where bond_option_mode_set() gets called before
> hw_features has been filled in, and very bad things happen when
> netdev_change_features() then gets called, because the empty hw_features
> wipes out almost all feature
On Mon, Nov 23, 2020 at 04:56:58PM +0900, Bongsu Jeon wrote:
> Since S3FWRN82 NFC Chip, The UART interface can be used.
> S3FWRN82 uses NCI protocol and supports I2C and UART interface.
>
> Signed-off-by: Bongsu Jeon
Please start sending emails properly, e.g. with git send-email, so all
your pat
On Fri, Nov 20, 2020 at 4:17 PM wrote:
>
> From: Marek Majtyka
>
> Fix incorrect netdev reference count in xsk_bind operation. Incorrect
> reference count of the device appears when a user calls bind with the
> XDP_ZEROCOPY flag on an interface which does not support zero-copy.
> In such a case,
On Sun, Nov 22, 2020 at 10:55 PM Martin Schiller wrote:
>
> No, they aren't independent. The carrier can only be up if the device /
> interface is UP. And as far as I can see a NETDEV_CHANGE event will also
> only be generated on interfaces that are UP.
>
> So you can be sure, that if there is a N
> On Fri, Nov 20, 2020 at 11:19:34PM +0100, Lorenzo Bianconi wrote:
> > Introduce page_pool_put_page_bulk() entry into the API section of
> > page_pool.rst
> >
> > Signed-off-by: Lorenzo Bianconi
> > ---
> > Documentation/networking/page_pool.rst | 8
> > 1 file changed, 8 insertions(+)
On 2020-11-23 09:31, Xie He wrote:
On Sun, Nov 22, 2020 at 10:55 PM Martin Schiller wrote:
No, they aren't independent. The carrier can only be up if the device
/
interface is UP. And as far as I can see a NETDEV_CHANGE event will
also
only be generated on interfaces that are UP.
So you ca
From: Ionut-robert Aron
Convert fsl,qoriq-mc to YAML in order to automate the verification
process of dts files. In addition, update MAINTAINERS accordingly
and, while at it, add some missing files.
Signed-off-by: Ionut-robert Aron
[laurentiu.tu...@nxp.com: update MINTAINERS, updates & fixes in
Hello Christian,
Quoting Christian Eggers (2020-11-22 09:26:36)
> Use recently introduced PTP_MSGTYPE_SYNC and PTP_MSGTYPE_DELAY_REQ
> defines instead of a driver internal enumeration.
>
> Signed-off-by: Christian Eggers
Reviewed-by: Antoine Tenart
Thanks!
Antoine
> Cc: Quentin Schulz
> Cc:
On Sat, Nov 21, 2020 at 12:10 AM Alexander Duyck
wrote:
>
> On Fri, Nov 20, 2020 at 2:23 AM Xin Long wrote:
> >
> > On Fri, Nov 20, 2020 at 1:24 AM Alexander Duyck
> > wrote:
> > >
> > > On Wed, Nov 18, 2020 at 9:53 PM Xin Long wrote:
> > > >
> > > > On Thu, Nov 19, 2020 at 4:35 AM Alexander Du
Add support for new cable module type DSFP (Dual Small Form-Factor Pluggable
transceiver). DSFP EEPROM memory layout is compatible with CMIS 4.0 spec. Add
CMIS 4.0 module type to UAPI and implement DSFP EEPROM dump in mlx5.
Change log:
v1 -> v2
- Added comments on accessing only the mandatory part
From: Vladyslav Tarasiuk
DSFP is a new cable module type, which EEPROM uses memory layout
described in CMIS 4.0 document. Use corresponding standard value for
userspace ethtool to distinguish DSFP's layout from older standards.
Add DSFP module ID in accordance to SFF-8024.
DSFP module memory ca
From: Vladyslav Tarasiuk
CMIS 4.0 document describes a universal EEPROM memory layout, which is
used for some modules such as DSFP, OSFP and QSFP-DD modules. In order
to distinguish them in userspace from existing standards, add
corresponding values.
CMIS 4.0 EERPOM memory includes mandatory and
Hi,
Ping ...
Any comments?
> -Original Message-
> From: Jianyong Wu
> Sent: Wednesday, November 11, 2020 2:22 PM
> To: netdev@vger.kernel.org; yangbo...@nxp.com; john.stu...@linaro.org;
> t...@linutronix.de; pbonz...@redhat.com; sean.j.christopher...@intel.com;
> m...@kernel.org; richardc
On Mon, Nov 23, 2020 at 1:00 AM Martin Schiller wrote:
>
> AFAIK the carrier can't be up before the device is up. Therefore, there
> will be a NETDEV_CHANGE event after the NETDEV_UP event.
>
> This is what I can see in my tests (with the HDLC interface).
>
> Is the behaviour different for e.g. la
Hi Ezequiel,
Thanks a lot for the fix, I overlooked this when adding devlink support.
On Sat, Nov 21, 2020 at 09:23:36PM -0300, Ezequiel Garcia wrote:
> The dpaa2 driver depends on devlink, so it should select
> NET_DEVLINK in order to fix compile errors, such as:
>
> drivers/net/ethernet/frees
Thu, Nov 19, 2020 at 09:38:34PM CET, edwin.p...@broadcom.com wrote:
>On Sat, Oct 10, 2020 at 3:54 PM Ido Schimmel wrote:
>
>> Add 'ETHTOOL_A_LINKMODES_LANES' attribute and expand 'struct
>> ethtool_link_settings' with lanes field in order to implement a new
>> lanes-selector that will enable the u
On Sun, Nov 22, 2020 at 2:21 PM Li RongQing wrote:
>
> It is possible to fail receiving packets after calling
> xsk_ring_cons__peek, at this condition, cached_cons has
> been advanced, should be cancelled.
Thanks RongQing,
I have needed this myself in various situations, so I think we should
add
> -Original Message-
> From: Michal Kubecek
> Sent: Thursday, October 22, 2020 7:28 PM
> To: Danielle Ratson
> Cc: Jiri Pirko ; Andrew Lunn ; Jakub
> Kicinski ; Ido Schimmel
> ; netdev@vger.kernel.org; da...@davemloft.net; Jiri Pirko
> ; f.faine...@gmail.com; mlxsw
> ; Ido Schimmel ;
Hello,
syzbot found the following issue on:
HEAD commit:b9ad3e9f bonding: wait for sysfs kobject destruction befor..
git tree: net
console output: https://syzkaller.appspot.com/x/log.txt?x=1195c5cd50
kernel config: https://syzkaller.appspot.com/x/.config?x=330f3436df12fd44
dashboar
Hello,
syzbot found the following issue on:
HEAD commit:27bba9c5 Merge tag 'scsi-fixes' of git://git.kernel.org/pu..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=11041f1e50
kernel config: https://syzkaller.appspot.com/x/.config?x=330f3436df12fd44
das
Hello,
syzbot found the following issue on:
HEAD commit:a349e4c6 Merge tag 'xfs-5.10-fixes-7' of git://git.kernel...
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1427b22550
kernel config: https://syzkaller.appspot.com/x/.config?x=330f3436df12fd44
das
On Mon, Nov 23, 2020 at 1:36 AM Xie He wrote:
>
> Some drivers don't support carrier status and will never change it.
> Their carrier status will always be UP. There will not be a
> NETDEV_CHANGE event.
>
> lapbether doesn't change carrier status. I also have my own virtual
> HDLC WAN driver (for
On 11/22/2020 11:12 PM, Randy Dunlap wrote:
Fix build when CONFIG_IPV6 is not enabled by making a function
be built conditionally.
Fixes these build errors and warnings:
../drivers/net/ethernet/mellanox/mlx5/core/en_accel/fs_tcp.c: In function
'accel_fs_tcp_set_ipv6_flow':
../include/net/so
On Sun, Nov 22, 2020 at 10:07 AM Zhu Yanjun wrote:
>
> From: Zhu Yanjun
>
> The function xsk_map_inc always returns zero. As such, changing the
> return type to void and removing the test code.
>
> Signed-off-by: Zhu Yanjun
> Signed-off-by: Zhu Yanjun
> ---
> net/xdp/xsk.c|1 -
> net/x
implement the NCI 2.x initial sequence to support NCI 2.x NFCC.
Since NCI 2.0, CORE_RESET and CORE_INIT sequence have been changed.
If NFCEE supports NCI 2.x, then NCI 2.x initial sequence will work.
In NCI 1.0, Initial sequence and payloads are as below:
(DH) (NFCC)
| -- COR
Mon, Nov 23, 2020 at 03:49:06AM CET, gcher...@marvell.com wrote:
>
>
>> -Original Message-
>> From: Jiri Pirko
>> Sent: Saturday, November 21, 2020 7:44 PM
>> To: George Cherian
>> Cc: netdev@vger.kernel.org; linux-ker...@vger.kernel.org;
>> k...@kernel.org; da...@davemloft.net; Sunil Kov
Hi Jiri,
> -Original Message-
> From: Jiri Pirko
> Sent: Monday, November 23, 2020 3:52 PM
> To: George Cherian
> Cc: netdev@vger.kernel.org; linux-ker...@vger.kernel.org;
> k...@kernel.org; da...@davemloft.net; Sunil Kovvuri Goutham
> ; Linu Cherian ;
> Geethasowjanya Akula ; masahi...@
Workaround to get WiFi working on Xiaomi Poco F1 (sdm845)
phone. We get a non-fatal QMI_ERR_MALFORMED_MSG_V01 error
message in ath10k_qmi_host_cap_send_sync(), but we can still
bring up WiFi services successfully on AOSP if we ignore it.
We suspect either the host cap is not implemented or there
m
Jakub Kicinski writes:
> On Fri, 20 Nov 2020 16:46:51 +0100 Toke Høiland-Jørgensen wrote:
>> Hi Jakub and Jiri
>>
>> I am investigating an error with XDP offload mode, and figured I'd run
>> 'test_offload.py' from selftests. However, I'm unable to get it to run
>> successfully; am I missing some
Andrii Nakryiko writes:
> On Fri, Nov 20, 2020 at 7:49 AM Toke Høiland-Jørgensen
> wrote:
>>
>> Hi Jakub and Jiri
>>
>> I am investigating an error with XDP offload mode, and figured I'd run
>> 'test_offload.py' from selftests. However, I'm unable to get it to run
>> successfully; am I missing
Hi Lizhi,
You didn't send the patch to any mail list, is this intentional?
在 2020/11/23 18:03, lizhi01 写道:
Add gmac driver to support LS7A bridge chip.
Signed-off-by: lizhi01
---
arch/mips/configs/loongson3_defconfig | 4 +-
drivers/net/ethernet/stmicro/stmmac/Kconfig
From: Colin Ian King
There are spelling mistakes in two dev_err messages. Fix them.
Signed-off-by: Colin Ian King
---
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 2 +-
drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 2 +-
2 files changed, 2 insertions(+), 2 deletion
On 2020-11-23 11:08, Xie He wrote:
On Mon, Nov 23, 2020 at 1:36 AM Xie He wrote:
Some drivers don't support carrier status and will never change it.
Their carrier status will always be UP. There will not be a
NETDEV_CHANGE event.
Well, one could argue that we would have to repair these drive
On 2020-11-11 06:22, Jianyong Wu wrote:
ptp_kvm will get this service through SMCC call.
The service offers wall time and cycle count of host to guest.
The caller must specify whether they want the host cycle count
or the difference between host cycle count and cntvoff.
Signed-off-by: Jianyong W
On 2020-11-11 06:22, Jianyong Wu wrote:
Currently, there is no mechanism to keep time sync between guest and
host
in arm/arm64 virtualization environment. Time in guest will drift
compared
with host after boot up as they may both use third party time sources
to correct their time respectively.
On 2020-11-11 06:22, Jianyong Wu wrote:
PTP_KVM implementation depends on hypercall using SMCCC. So we
introduce a new SMCCC service ID. This doc explains how does the
ID define and how does PTP_KVM works on arm/arm64.
Signed-off-by: Jianyong Wu
---
Documentation/virt/kvm/api.rst | 9
> -Original Message-
> From: Magnus Karlsson [mailto:magnus.karls...@gmail.com]
> Sent: Monday, November 23, 2020 5:40 PM
> To: Li,Rongqing
> Cc: Network Development ; bpf
>
> Subject: Re: [PATCH] libbpf: add support for canceling cached_cons advance
>
> On Sun, Nov 22, 2020 at 2:21 PM
On Wed, Nov 18, 2020 at 09:12:57AM -0500, Steven Rostedt wrote:
>
> [ Adding netdev as perhaps someone there knows ]
>
> On Wed, 18 Nov 2020 12:09:59 +0800
> Jason Wang wrote:
>
> > > This CPU0 lock(_xmit_ETHER#2) -> hard IRQ -> lock(console_owner) is
> > > basically
> > > soft IRQ -> lock(_xmit
While booting arm64 kernel the following kernel BUG noticed on several arm64
devices running linux next 20201123 tag kernel.
$ git log --oneline next-20201120..next-20201123 -- kernel/seccomp.c
5c5c5fa055ea Merge remote-tracking branch 'seccomp/for-next/seccomp'
bce6a8cba7bf Merge bra
On Mon, Nov 23, 2020 at 2:38 AM Martin Schiller wrote:
>
> Well, one could argue that we would have to repair these drivers, but I
> don't think that will get us anywhere.
Yeah... One problem I see with the Linux project is the lack of
docs/specs. Often we don't know what is right and what is wro
Mon, Nov 23, 2020 at 11:28:28AM CET, gcher...@marvell.com wrote:
>Hi Jiri,
>
>> -Original Message-
>> From: Jiri Pirko
>> Sent: Monday, November 23, 2020 3:52 PM
>> To: George Cherian
>> Cc: netdev@vger.kernel.org; linux-ker...@vger.kernel.org;
>> k...@kernel.org; da...@davemloft.net; Sun
Hi Abhishek,
> This patch series adds support for a quirk that will power down the
> Bluetooth controller when suspending and power it back up when resuming.
>
> On Marvell SDIO Bluetooth controllers (SD8897 and SD8997), we are seeing
> a large number of suspend failures with the following log me
Hi Wei,
> This commit add the invalid check for connected socket, without it will
> causes the following crash due to sco_pi(sk)->conn being NULL:
>
> KASAN: null-ptr-deref in range [0x0050-0x0057]
> CPU: 3 PID: 4284 Comm: test_sco Not tainted 5.10.0-rc3+ #1
> Hardware nam
On 11/19/20 8:46 PM, Mat Martineau wrote:
> From: Paolo Abeni
>
> Send timely MPTCP-level ack is somewhat difficult when
> the insertion into the msk receive level is performed
> by the worker.
>
> It needs TCP-level dup-ack to notify the MPTCP-level
> ack_seq increase, as both the TCP-level
Hi Wang,
> The pointer 'conn' may be null. Before being used by
> hci_connect_le_scan_cleanup(), The pointer 'conn' must be
> checked whether it is null.
>
> Fixes: 28a667c9c279 ("Bluetooth: advertisement handling in new connect
> procedure")
> Reported-by: Hulk Robot
> Signed-off-by: Wang Hai
Hello,
syzbot found the following issue on:
HEAD commit:c2e7554e Merge tag 'gfs2-v5.10-rc4-fixes' of git://git.ker..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=117f03ba50
kernel config: https://syzkaller.appspot.com/x/.config?x=75292221eb79ace2
das
Hi Sergey,
>>> hci_phy_link_complete_evt() has several duplicate error paths -- consolidate
>>> them, using the *goto* statements.
>>>
>>> Signed-off-by: Sergey Shtylyov
>>>
>>> ---
>>> net/bluetooth/hci_event.c | 16 ++--
>>> 1 file changed, 6 insertions(+), 10 deletions(-)
>> pat
On 2020-11-23 10:44, Marc Zyngier wrote:
On 2020-11-11 06:22, Jianyong Wu wrote:
ptp_kvm will get this service through SMCC call.
The service offers wall time and cycle count of host to guest.
The caller must specify whether they want the host cycle count
or the difference between host cycle cou
On Mon, Nov 23, 2020 at 8:05 PM wrote:
>
> From: Zhu Yanjun
>
> The function xsk_map_inc is a simple wrapper of bpf_map_inc and
> always returns zero. As such, replacing this function with bpf_map_inc
> and removing the test code.
>
> Signed-off-by: Zhu Yanjun
> ---
> net/xdp/xsk.c| 1 -
On 23/11/2020 13:14, Horatiu Vultur wrote:
> Extend MRP to support LC mode(link check) for the interconnect port.
> This applies only to the interconnect ring.
>
> Opposite to RC mode(ring check) the LC mode is using CFM frames to
> detect when the link goes up or down and based on that the usersp
On Mon, Nov 23, 2020 at 1:11 PM Zhu Yanjun wrote:
>
> On Mon, Nov 23, 2020 at 8:05 PM wrote:
> >
> > From: Zhu Yanjun
> >
> > The function xsk_map_inc is a simple wrapper of bpf_map_inc and
> > always returns zero. As such, replacing this function with bpf_map_inc
> > and removing the test code.
On 2020-11-21 01:31, Yonghong Song wrote:
On 11/20/20 5:00 AM, Weqaar Janjua wrote:
This patch set adds AF_XDP selftests based on veth to selftests/bpf.
# Topology:
# -
# ---
# _ | Process | _
# / --- \
# /
Hello:
This patch was applied to bpf/bpf.git (refs/heads/master):
On Fri, 20 Nov 2020 16:14:43 +0100 you wrote:
> From: Marek Majtyka
>
> Fix incorrect netdev reference count in xsk_bind operation. Incorrect
> reference count of the device appears when a user calls bind with the
> XDP_ZEROCOPY
On Sun, Nov 22, 2020 at 11:53:55AM -0800, James Bottomley wrote:
> On Sun, 2020-11-22 at 11:22 -0800, Joe Perches wrote:
> > On Sun, 2020-11-22 at 11:12 -0800, James Bottomley wrote:
> > > On Sun, 2020-11-22 at 10:25 -0800, Joe Perches wrote:
> > > > On Sun, 2020-11-22 at 10:21 -0800, James Bottoml
From: Björn Töpel
Commit 642e450b6b59 ("xsk: Do not discard packet when NETDEV_TX_BUSY")
addressed the problem that packets were discarded from the Tx AF_XDP
ring, when the driver returned NETDEV_TX_BUSY. Part of the fix was
bumping the skbuff reference count, so that the buffer would not be
free
This series converts iproute2 to use libbpf for loading and attaching
BPF programs when it is available. This means that iproute2 will
correctly process BTF information and support the new-style BTF-defined
maps, while keeping compatibility with the old internal map definition
syntax.
This is achi
This patch aim to add basic checking functions for later iproute2
libbpf support.
First we add check_libbpf() in configure to see if we have bpf library
support. By default the system libbpf will be used, but static linking
against a custom libbpf version can be achieved by passing libbpf DESTDIR
There are directly calls in libbpf for bpf program load/attach.
So we could just use two wrapper functions for ipvrf and convert
them with libbpf support.
Function bpf_prog_load() is removed as it's conflict with libbpf
function name.
bpf.c is moved to bpf_legacy.c for later main libbpf support i
This patch converts iproute2 to use libbpf for loading and attaching
BPF programs when it is available, which is started by Toke's
implementation[1]. With libbpf iproute2 could correctly process BTF
information and support the new-style BTF-defined maps, while keeping
compatibility with the old int
Users should try use the new BTF defined maps instead of struct
bpf_elf_map defined maps. The tail call examples are not added yet
as libbpf doesn't currently support declaratively populating tail call
maps.
Reviewed-by: Toke Høiland-Jørgensen
Signed-off-by: Hangbin Liu
---
examples/bpf/README
Reviewed-by: Toke Høiland-Jørgensen
Signed-off-by: Hangbin Liu
---
examples/bpf/README| 14 +-
examples/bpf/{ => legacy}/bpf_cyclic.c | 2 +-
examples/bpf/{ => legacy}/bpf_graft.c | 2 +-
examples/bpf/{ => legacy}/bpf_map_in_map.c | 2 +-
examples/
On Tue, Nov 17, 2020 at 05:47:23PM +0100, Antony Antony wrote:
> redact XFRM SA secret in the netlink response to xfrm_get_sa()
> or dumpall sa.
> Enable lockdown, confidentiality mode, at boot or at run time.
>
> e.g. when enabled:
> cat /sys/kernel/security/lockdown
> none integrity [confidentia
Hi,
I've Cced netdev, maybe other people have an opinion on this too.
On Thu, Nov 19, 2020 at 01:39:29PM -0800, Nic Dade wrote:
> I've been investigating a problem which happens when I use IPsec
> (strongswan in userspace), ESN, the default anti-replay window (32
> seqnums), on a multi-core CPU.
On 2020-11-23 13:20, Björn Töpel wrote:
On 2020-11-21 01:31, Yonghong Song wrote:
On 11/20/20 5:00 AM, Weqaar Janjua wrote:
This patch set adds AF_XDP selftests based on veth to selftests/bpf.
# Topology:
# -
# ---
# _ | Process | _
#
Hi,
2020年11月20日(金) 18:28 Dmytro Shytyi :
>
> Variable SLAAC: SLAAC with prefixes of arbitrary length in PIO (randomly
> generated hostID or stable privacy + privacy extensions).
> The main problem is that SLAAC RA or PD allocates a /64 by the Wireless
> carrier 4G, 5G to a mobile hotspot, however
On 11/19/20 6:37 PM, Roman Gushchin wrote:
Currently bpf is using the memlock rlimit for the memory accounting.
This approach has its downsides and over time has created a significant
amount of problems:
1) The limit is per-user, but because most bpf operations are performed
as root, the lim
On Thu, 19 Nov 2020 at 09:30, Björn Töpel wrote:
>
> This series introduces three new features:
>
> 1. A new "heavy traffic" busy-polling variant that works in concert
>with the existing napi_defer_hard_irqs and gro_flush_timeout knobs.
>
> 2. A new socket option that let a user change the bus
On Mon, Nov 23, 2020 at 8:19 PM Magnus Karlsson
wrote:
>
> On Mon, Nov 23, 2020 at 1:11 PM Zhu Yanjun wrote:
> >
> > On Mon, Nov 23, 2020 at 8:05 PM wrote:
> > >
> > > From: Zhu Yanjun
> > >
> > > The function xsk_map_inc is a simple wrapper of bpf_map_inc and
> > > always returns zero. As such
On 20.11.2020 18:26, Jakub Kicinski wrote:
On Thu, 19 Nov 2020 18:59:48 +0300 Vadim Fedorenko wrote:
In case when tcp socket received FIN after some data and the
parser haven't started before reading data caller will receive
an empty buffer. This behavior differs from plain TCP socket and
leads
Add some file F: matches that is related to page_pool.
Acked-by: Ilias Apalodimas
Signed-off-by: Jesper Dangaard Brouer
---
MAINTAINERS |2 ++
1 file changed, 2 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index f827f504251b..a607ff2156dd 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
On Mon, Nov 23, 2020 at 12:15 PM Naresh Kamboju
wrote:
>
> While booting arm64 kernel the following kernel BUG noticed on several arm64
> devices running linux next 20201123 tag kernel.
>
>
> $ git log --oneline next-20201120..next-20201123 -- kernel/seccomp.c
> 5c5c5fa055ea
On Mon, Nov 23, 2020 at 2:37 PM Zhu Yanjun wrote:
>
> On Mon, Nov 23, 2020 at 8:19 PM Magnus Karlsson
> wrote:
> >
> > On Mon, Nov 23, 2020 at 1:11 PM Zhu Yanjun wrote:
> > >
> > > On Mon, Nov 23, 2020 at 8:05 PM wrote:
> > > >
> > > > From: Zhu Yanjun
> > > >
> > > > The function xsk_map_inc
The IOSM (IPC over Shared Memory) driver is a PCIe host driver implemented
for linux or chrome platform for data exchange over PCIe interface between
Host platform & Intel M.2 Modem. The driver exposes interface conforming to the
MBIM protocol [1]. Any front end application ( eg: Modem Manager) cou
1) Register IOSM driver with kernel to manage Intel WWAN PCIe
device(PCI_VENDOR_ID_INTEL, INTEL_CP_DEVICE_7560_ID).
2) Exposes the EP PCIe device capability to Host PCIe core.
3) Initializes PCIe EP configuration and defines PCIe driver probe, remove
and power management OPS.
4) Allocate and
1) Request interrupt vector, frees allocated resource.
2) Registers IRQ handler.
Signed-off-by: M Chetan Kumar
---
drivers/net/wwan/iosm/iosm_ipc_irq.c | 95
drivers/net/wwan/iosm/iosm_ipc_irq.h | 35 +
2 files changed, 130 insertions(+)
create m
1) Initializes the Scratchpad region for Host-Device communication.
2) Exposes device capabilities like chip info and device execution
stages.
Signed-off-by: M Chetan Kumar
---
drivers/net/wwan/iosm/iosm_ipc_mmio.c | 222 ++
drivers/net/wwan/iosm/iosm_ipc_mmio.
1) Initializes shared memory for host-device communication.
2) Allocate resources required for control & data operations.
3) Transfers the Device IRQ to IPC execution thread.
4) Defines the timer cbs for async events.
Signed-off-by: M Chetan Kumar
---
drivers/net/wwan/iosm/iosm_ipc_imem.c | 1466
Defines pipes & channel configurations like channel type,
pipe mappings, No. of transfer descriptors and transfer
buffer size etc.
Signed-off-by: M Chetan Kumar
---
drivers/net/wwan/iosm/iosm_ipc_chnl_cfg.c | 87 +++
drivers/net/wwan/iosm/iosm_ipc_chnl_cfg.h | 57
Implements a char device for flashing Modem FW image while Device
is in boot rom phase and for collecting traces on modem crash.
Signed-off-by: M Chetan Kumar
---
drivers/net/wwan/iosm/iosm_ipc_sio.c | 188 +++
drivers/net/wwan/iosm/iosm_ipc_sio.h | 72 ++
1) Bottom half(tasklet) for IRQ and task processing.
2) Tasks are processed asynchronous and synchronously.
Signed-off-by: M Chetan Kumar
---
drivers/net/wwan/iosm/iosm_ipc_task_queue.c | 258
drivers/net/wwan/iosm/iosm_ipc_task_queue.h | 46 +
2 files changed,
Implements a char device for MBIM protocol communication &
provides a simple IOCTL for max transfer buffer size
configuration.
Signed-off-by: M Chetan Kumar
---
drivers/net/wwan/iosm/iosm_ipc_mbim.c | 205 ++
drivers/net/wwan/iosm/iosm_ipc_mbim.h | 24
2 fil
1) Defines messaging protocol for handling Transfer Descriptor
in both UL/DL direction.
2) Ring buffer management.
Signed-off-by: M Chetan Kumar
---
drivers/net/wwan/iosm/iosm_ipc_protocol.c | 287 ++
drivers/net/wwan/iosm/iosm_ipc_protocol.h | 219
1) Encode UL packet into datagram.
2) Decode DL datagram and route it to network layer.
3) Supports credit based flow control.
Signed-off-by: M Chetan Kumar
---
drivers/net/wwan/iosm/iosm_ipc_mux_codec.c | 902 +
drivers/net/wwan/iosm/iosm_ipc_mux_codec.h | 194 ++
Implements state machine to handle host & device sleep.
Signed-off-by: M Chetan Kumar
---
drivers/net/wwan/iosm/iosm_ipc_pm.c | 334
drivers/net/wwan/iosm/iosm_ipc_pm.h | 216 +++
2 files changed, 550 insertions(+)
create mode 100644 driv
1) Binds logical channel between host-device for communication.
2) Implements device specific(Char/Net) IO operations.
3) Inject primary BootLoader FW image to modem.
Signed-off-by: M Chetan Kumar
---
drivers/net/wwan/iosm/iosm_ipc_imem_ops.c | 779 ++
drivers/net/wwa
Report modem status via uevent.
Signed-off-by: M Chetan Kumar
---
drivers/net/wwan/iosm/iosm_ipc_uevent.c | 47 +
drivers/net/wwan/iosm/iosm_ipc_uevent.h | 41
2 files changed, 88 insertions(+)
create mode 100644 drivers/net/wwan/iosm
1) Update UL/DL transfer descriptors in message ring.
2) Define message set for pipe/sleep protocol.
Signed-off-by: M Chetan Kumar
---
drivers/net/wwan/iosm/iosm_ipc_protocol_ops.c | 563 ++
drivers/net/wwan/iosm/iosm_ipc_protocol_ops.h | 358
2 files cha
Documents IOSM Driver interface usage.
Signed-off-by: M Chetan Kumar
---
drivers/net/wwan/iosm/README | 126 +++
1 file changed, 126 insertions(+)
create mode 100644 drivers/net/wwan/iosm/README
diff --git a/drivers/net/wwan/iosm/README b/drivers/net/wwa
Establish IP session between host-device & session management.
Signed-off-by: M Chetan Kumar
---
drivers/net/wwan/iosm/iosm_ipc_mux.c | 455 +++
drivers/net/wwan/iosm/iosm_ipc_mux.h | 344 ++
2 files changed, 799 insertions(+)
create mode
1) Kconfig & Makefile changes for IOSM Driver compilation.
2) Modified driver/net Kconfig & Makefile for driver inclusion.
3) Modified MAINTAINER file for IOSM Driver addition.
Signed-off-by: M Chetan Kumar
---
MAINTAINERS| 7 +++
drivers/net/Kconfig| 1 +
d
1) Create net device for data/IP communication.
2) Bind VLAN ID to mux IP session.
3) Implement net device operations.
Signed-off-by: M Chetan Kumar
---
drivers/net/wwan/iosm/iosm_ipc_wwan.c | 674 ++
drivers/net/wwan/iosm/iosm_ipc_wwan.h | 72
2 files chang
On 11/23/20 2:12 PM, Björn Töpel wrote:
From: Björn Töpel
Commit 642e450b6b59 ("xsk: Do not discard packet when NETDEV_TX_BUSY")
addressed the problem that packets were discarded from the Tx AF_XDP
ring, when the driver returned NETDEV_TX_BUSY. Part of the fix was
bumping the skbuff reference c
On Wed, Nov 18, 2020 at 9:25 AM Xuan Zhuo wrote:
>
> I tried to combine cq available and tx writeable, but I found it very
> difficult.
> Sometimes we pay attention to the status of "available" for both, but
> sometimes,
> we may only pay attention to one, such as tx writeable, because we can us
On Sun, Nov 22, 2020 at 11:54 PM Finn Thain wrote:
>
> We should also take into account optimisim about future improvements in
> tooling.
Not sure what you mean here. There is no reliable way to guess what
the intention was with a missing fallthrough, even if you parsed
whitespace and indentation
On 2020-11-23 14:53, Daniel Borkmann wrote:
[...]
Hm, but this way free_on_busy, even though constant, cannot be optimized
away?
Can't you just move the dev_xmit_complete() check out into
dev_direct_xmit()
instead? That way you can just drop the bool, and the below
dev_direct_xmit()
should p
On Wed, Nov 18, 2020 at 9:26 AM Xuan Zhuo wrote:
>
> datagram_poll will judge the current socket status (EPOLLIN, EPOLLOUT)
> based on the traditional socket information (eg: sk_wmem_alloc), but
> this does not apply to xsk. So this patch uses sock_poll_wait instead of
> datagram_poll, and the mas
Calling netdev_increment_features() on upper/master device from
netdev_add_tso_features() implies unintentional clearance of ALL_FOR_ALL
features supported by all slaves. Fix it by passing ALL_FOR_ALL in
addition to ALL_TSO.
Fixes: b0ce3508b25e ("bonding: allow TSO being set on bonding master")
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