On Tue 01 Dec 2020 at 04:52, Jakub Kicinski wrote:
> On Fri, 27 Nov 2020 17:12:05 +0200 Vlad Buslov wrote:
>> @@ -2262,7 +2260,7 @@ static int tc_del_tfilter(struct sk_buff *skb, struct
>> nlmsghdr *n,
>>
>> if (prio == 0) {
>> tfilter_notify_chain(net, skb, block, q, parent,
The timestamp fields should be copied to new skb too in
A-050385 workaround for later TX timestamping handling.
Fixes: 3c68b8fffb48 ("dpaa_eth: FMan erratum A050385 workaround")
Signed-off-by: Yangbo Lu
---
drivers/net/ethernet/freescale/dpaa/dpaa_eth.c | 10 +-
1 file changed, 9 inserti
发件人: syzbot
发送时间: 2020年11月30日 23:31
收件人: andreyk...@google.com; da...@davemloft.net; k...@kernel.org;
kv...@codeaurora.org; linux-ker...@vger.kernel.org; linux-...@vger.kernel.org;
linux-wirel...@vger.kernel.org; netdev@vger.kernel.org;
syzkaller-b...@
On Mon, Nov 30, 2020 at 05:52:48PM -0800, Jakub Kicinski wrote:
> On Sat, 21 Nov 2020 18:09:41 +0200 Ido Schimmel wrote:
> > + Florian
> >
> > On Thu, Oct 29, 2020 at 05:36:19PM +, Aleksandr Nogikh wrote:
> > > From: Aleksandr Nogikh
> > >
> > > Remote KCOV coverage collection enables covera
> From: sven.auha...@voleatech.de
> Sent: Wednesday, November 11, 2020 10:35 PM
> To: Nguyen, Anthony L ; Fijalkowski, Maciej
> ; k...@kernel.org
> Cc: da...@davemloft.net; intel-wired-...@lists.osuosl.org;
> netdev@vger.kernel.org; nhor...@redhat.com; sassm...@redhat.com;
> Penigalapati, Sandeep
On 11/30/20 7:55 PM, Andrii Nakryiko wrote:
Building on top of two previous patch sets ([0] and not yet landed [1]), this
patch sets extends kernel and libbpf with support for attaching BTF-powered
raw tracepoint (tp_btf) and tracing (fentry/fexit/fmod_ret/lsm) BPF programs
to BPF hooks define
On 2020-11-30 11:04, Dan Carpenter wrote:
From: "kiyin(尹亮)"
The .x25_addr[] address comes from the user and is not necessarily
NUL terminated. This leads to a couple problems. The first problem is
that the strlen() in x25_bind() can read beyond the end of the buffer.
The second problem is mo
On 2020/11/30 下午3:07, Yongji Xie wrote:
Thanks for adding me, Jason!
Now I'm working on a v2 patchset for VDUSE (vDPA Device in Userspace)
[1]. This tool is very useful for the vduse device. So I'm considering
integrating this into my v2 patchset. But there is one problem：
In this tool, vdpa
ETHTOOL_GMODULEINFO request success indicates that SFP cage is present.
Failure of ETHTOOL_GMODULEEEPROM is most likely because SFP module is
not plugged in. Add an indication to the user as to what might be the
reason for the failure.
Signed-off-by: Baruch Siach
---
ethtool.c | 1 +
1 file chan
Gustavo,
> This series aims to fix almost all remaining fall-through warnings in
> order to enable -Wimplicit-fallthrough for Clang.
Applied 20-22,54,120-124 to 5.11/scsi-staging, thanks.
--
Martin K. Petersen Oracle Linux Engineering
> -Original Message-
> From: George Cherian
> Sent: Tuesday, December 1, 2020 10:49 AM
> To: 'Jakub Kicinski'
> Cc: 'netdev@vger.kernel.org' ; 'linux-
> ker...@vger.kernel.org' ;
> 'da...@davemloft.net' ; Sunil Kovvuri Goutham
> ; Linu Cherian ;
> Geethasowjanya Akula ; 'masahi...@kerne
Jakub,
> -Original Message-
> From: George Cherian
> Sent: Tuesday, December 1, 2020 9:06 AM
> To: Jakub Kicinski
> Cc: netdev@vger.kernel.org; linux-ker...@vger.kernel.org;
> da...@davemloft.net; Sunil Kovvuri Goutham ;
> Linu Cherian ; Geethasowjanya Akula
> ; masahi...@kernel.org;
> wi
Add another CO-RE relocation test for kernel module relocations. This time for
tp_btf with direct memory reads.
Signed-off-by: Andrii Nakryiko
---
.../selftests/bpf/prog_tests/core_reloc.c | 3 +-
.../bpf/progs/test_core_reloc_module.c| 32 ++-
2 files changed, 33 in
Pahole currently isn't able to generate BTF for static functions in kernel
modules, so make sure traced sidecar function is global.
Signed-off-by: Andrii Nakryiko
---
tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools
Add new selftest checking attachment of fentry/fexit/fmod_ret (and raw
tracepoint ones for completeness) BPF programs to kernel module function.
Signed-off-by: Andrii Nakryiko
---
.../selftests/bpf/prog_tests/module_attach.c | 53 +++
.../selftests/bpf/progs/test_module_attach.c |
Building on top of two previous patch sets ([0] and not yet landed [1]), this
patch sets extends kernel and libbpf with support for attaching BTF-powered
raw tracepoint (tp_btf) and tracing (fentry/fexit/fmod_ret/lsm) BPF programs
to BPF hooks defined in kernel modules.
Kernel UAPI for BPF_PROG_LO
Teach libbpf to search for BTF types in kernel modules for tracing BPF
programs. This allows attachment of raw_tp/fentry/fexit/fmod_ret/etc BPF
program types to tracepoints and functions in kernel modules.
Signed-off-by: Andrii Nakryiko
---
tools/lib/bpf/bpf.c | 1 +
tools/lib/bpf
Remove a permeating assumption thoughout BPF verifier of vmlinux BTF. Instead,
wherever BTF type IDs are involved, also track the instance of struct btf that
goes along with the type ID. This allows to gradually add support for kernel
module BTFs and using/tracking module types across BPF helper ca
Refactor low-level API for BPF program loading to not rely on public API
types. This allows painless extension without constant efforts to cleverly not
break backwards compatibility.
Signed-off-by: Andrii Nakryiko
---
tools/lib/bpf/bpf.c | 100 ++--
tools/
Add ability for user-space programs to specify non-vmlinux BTF when attaching
BTF-powered BPF programs: raw_tp, fentry/fexit/fmod_ret, LSM, etc. For this,
add attach_btf_obj_id field which contains BTF object ID for either vmlinux or
module. For backwards compatibility (and simplicity) reasons, 0 d
Having real btf_data_size stored in struct module is benefitial to quickly
determine which kernel modules have associated BTF object and which don't.
There is no harm in keeping this info, as opposed to keeping invalid pointer.
Fixes: 607c543f939d ("bpf: Sanitize BTF data pointer after module is l
Add a self-tests validating libbpf is able to perform CO-RE relocations
against the type defined in kernel module BTF. if bpf_testmod.o is not
supported by the kernel (e.g., due to version mismatch), skip tests, instead
of failing.
Signed-off-by: Andrii Nakryiko
---
.../selftests/bpf/prog_tests/
Add bpf_testmod module, which is conceptually out-of-tree module and provides
ways for selftests/bpf to test various kernel module-related functionality:
raw tracepoint, fentry/fexit/fmod_ret, etc. This module will be auto-loaded by
test_progs test runner and expected by some of selftests to be pre
Previously skipped sub-tests would be counted as passing with ":OK" appened
in the log. Change that to be accounted as ":SKIP".
Signed-off-by: Andrii Nakryiko
---
tools/testing/selftests/bpf/test_progs.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/tools/testing/self
Refactor CO-RE relocation candidate search to not expect a single BTF, rather
return all candidate types with their corresponding BTF objects. This will
allow to extend CO-RE relocations to accommodate kernel module BTFs.
Acked-by: Martin KaFai Lau
Signed-off-by: Andrii Nakryiko
---
tools/lib/b
Teach libbpf to search for candidate types for CO-RE relocations across kernel
modules BTFs, in addition to vmlinux BTF. If at least one candidate type is
found in vmlinux BTF, kernel module BTFs are not iterated. If vmlinux BTF has
no matching candidates, then find all kernel module BTFs and searc
Implement libbpf support for performing CO-RE relocations against types in
kernel module BTFs, in addition to existing vmlinux BTF support.
This is a first step towards fully supporting kernel module BTFs. Subsequent
patch sets will expand kernel and libbpf sides to allow using other
BTF-powered c
__module_address() needs to be called with preemption disabled or with
module_mutex taken. preempt_disable() is enough for read-only uses, which is
what this fix does. Also, module_put() does internal check for NULL, so drop
it as well.
Fixes: a38d1107f937 ("bpf: support raw tracepoints in modules
Add a btf_get_from_fd() helper, which constructs struct btf from in-kernel BTF
data by FD. This is used for loading module BTFs.
Signed-off-by: Andrii Nakryiko
---
tools/lib/bpf/btf.c | 61 +++--
tools/lib/bpf/libbpf_internal.h | 1 +
2 files changed, 36
Hi Jakub,
> -Original Message-
> From: Jakub Kicinski
> Sent: Tuesday, December 1, 2020 7:59 AM
> To: George Cherian
> Cc: netdev@vger.kernel.org; linux-ker...@vger.kernel.org;
> da...@davemloft.net; Sunil Kovvuri Goutham ;
> Linu Cherian ; Geethasowjanya Akula
> ; masahi...@kernel.org;
On Mon, 30 Nov 2020 13:53:02 +0100 Marc Kleine-Budde wrote:
> Hello Jakub, hello David,
>
> here's a pull request of 5 patches for net/master.
>
> The first patch is by me an target the tcan4x5x bindings for the m_can driver.
> It fixes the error path in the tcan4x5x_can_probe() function.
>
> Th
On Mon, 30 Nov 2020 15:14:18 +0100 Marc Kleine-Budde wrote:
> Hello Jakub, hello David,
>
> here's a pull request of 14 patches for net-next/master.
>
> Gustavo A. R. Silva's patch for the pcan_usb driver fixes fall-through
> warnings
> for Clang.
>
> The next 5 patches target the mcp251xfd dr
> On Mon, Nov 30, 2020 at 2:16 PM Limonciello, Mario
> wrote:
> >
> > >
> > > Generally the use of module parameters and sysfs usage are frowned
> > > upon.
> >
> > I was trying to build on the existing module parameters that existed
> > already for e1000e. So I guess I would ask, why are those
On Fri, 27 Nov 2020 08:57:34 -0800 t...@redhat.com wrote:
> From: Tom Rix
>
> The macro use will already have a semicolon.
>
> Signed-off-by: Tom Rix
This one looks fine, applied, thanks.
On Fri, 27 Nov 2020 08:55:50 -0800 t...@redhat.com wrote:
> From: Tom Rix
>
> The macro use will already have a semicolon.
>
> Signed-off-by: Tom Rix
> ---
> drivers/net/ethernet/brocade/bna/bna_hw_defs.h | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net
On Fri, 27 Nov 2020 17:12:05 +0200 Vlad Buslov wrote:
> @@ -2262,7 +2260,7 @@ static int tc_del_tfilter(struct sk_buff *skb, struct
> nlmsghdr *n,
>
> if (prio == 0) {
> tfilter_notify_chain(net, skb, block, q, parent, n,
> - chain, RTM_DELTFI
On Fri, 27 Nov 2020 22:36:31 +0900 bongsu.je...@gmail.com wrote:
> From: Bongsu Jeon
>
> 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.
>
>
On Fri, 27 Nov 2020 11:10:21 +0100 Paolo Abeni wrote:
> The current locking schema used to protect the MPTCP data-path
> requires the usage of the MPTCP workqueue to process the incoming
> data, depending on trylock result.
>
> The above poses scalability limits and introduces random delays
> in M
On Thu, 26 Nov 2020 13:52:46 +0100 Sven Eckelmann wrote:
> It was observed that sending data via batadv over vxlan (on top of
> wireguard) reduced the performance massively compared to raw ethernet or
> batadv on raw ethernet. A check of perf data showed that the
> vxlan_build_skb was calling all t
On Thu, 26 Nov 2020 19:32:50 +0530 George Cherian wrote:
> Add health reporters for RVU NPA block.
> NPA Health reporters handle following HW event groups
> - GENERAL events
> - ERROR events
> - RAS events
> - RVU event
> An event counter per event is maintained in SW.
>
> Output:
> # devlink
On Thu, 26 Nov 2020 19:32:49 +0530 George Cherian wrote:
> Add devlink support to AF driver. Basic devlink support is added.
> Currently info_get is the only supported devlink ops.
>
> devlink ouptput looks like this
> # devlink dev
> pci/0002:01:00.0
> # devlink dev info
> pci/0002:01:00.0:
>
On Sat, 21 Nov 2020 18:09:41 +0200 Ido Schimmel wrote:
> + Florian
>
> On Thu, Oct 29, 2020 at 05:36:19PM +, Aleksandr Nogikh wrote:
> > From: Aleksandr Nogikh
> >
> > Remote KCOV coverage collection enables coverage-guided fuzzing of the
> > code that is not reachable during normal system c
Hello:
This patch was applied to netdev/net.git (refs/heads/master):
On Thu, 26 Nov 2020 03:19:14 +0530 you wrote:
> there is kernel panic in inet_twsk_free() while chtls
> module unload when socket is in TIME_WAIT state because
> sk_prot_creator was not preserved on connection socket.
>
> Fixes
Hi Tobias,
On Mon, Nov 30, 2020 at 03:06:08PM +0100, Tobias Waldekranz wrote:
> Monitor the following events and notify the driver when:
>
> - A DSA port joins/leaves a LAG.
> - A LAG, made up of DSA ports, joins/leaves a bridge.
> - A DSA port in a LAG is enabled/disabled (enabled meaning
> "d
On Sat, 28 Nov 2020 23:59:57 +0100 Maciej Fijalkowski wrote:
> On Wed, Nov 25, 2020 at 06:53:29PM +0200, Camelia Groza wrote:
> > Enable XDP support for the QorIQ DPAA1 platforms.
> >
> > Implement all the current actions (DROP, ABORTED, PASS, TX, REDIRECT). No
> > Tx batching is added at this tim
On Mon, Nov 30, 2020 at 4:07 PM Prankur gupta wrote:
>
> Adds a new bpf_setsockopt for TCP sockets, TCP_BPF_WINDOW_CLAMP,
> which sets the maximum receiver window size. It will be useful for
> limiting receiver window based on RTT.
>
> Signed-off-by: Prankur gupta
> ---
> net/core/filter.c | 8 +
On Mon, 30 Nov 2020 16:27:47 +0300 Denis Kirjanov wrote:
> in the case of the socket which is bound to an adress
> there is no sense to create a path in the next attempts
>
> here is a program that shows the issue:
>
> int main()
> {
> int s;
> struct sockaddr_un a;
>
> s = socket(AF
Although there is platform issue of runtime suspend support
on CNP, it would be more flexible to let the user decide whether
to disable runtime or not because:
1. This can be done in userspace via
echo on > /sys/devices/pci\:00/\:00\:1f.d/power/control
2. More and more NICs would support
The NIC is put in runtime suspend status when there is no cable connected.
As a result, it is safe to keep non-wakeup NIC in runtime suspended during
s2ram because the system does not rely on the NIC plug event nor WoL to wake
up the system. Besides that, unlike the s2idle, s2ram does not need to
m
On Mon, Nov 30, 2020 at 3:04 PM Andrii Nakryiko
wrote:
>
> No more holes, but the same overall size. Does that work?
Thanks. That's a good idea.
The NIC is put in runtime suspend status when there is no cable connected.
As a result, it is safe to keep non-wakeup NIC in runtime suspended during
s2ram because the system does not rely on the NIC plug event nor WoL to wake
up the system. Besides that, unlike the s2idle, s2ram does not need to
m
Hi Loic,
On 11/30/20 10:22 AM, Loic Poulain wrote:
On Sat, 28 Nov 2020 at 04:26, Hemant Kumar wrote:
This MHI client driver allows userspace clients to transfer
raw data between MHI device and host using standard file operations.
Driver instantiates UCI device object which is associated to de
On 11/23/20 5:23 PM, Stephen Suryaputra wrote:
> Hi,
>
> I'm running into a problem with lladdr pinging all-host mcast all nodes
> addr. The ping intially works but after cycling the interface that
> receives the ping, the echo request packet causes a neigh solicitation
> being sent on a different
On Mon, 30 Nov 2020 13:07:22 -0600 Thomas Falcon wrote:
> This series resolves a few issues in the ibmvnic driver's
> RX buffer and TX completion processing. The first patch
> includes memory barriers to synchronize queue descriptor
> reads. The second patch fixes a memory leak that could
> occur i
Hi Mani,
On 11/27/20 10:11 PM, Manivannan Sadhasivam wrote:
Hi Hemant,
On Fri, Nov 27, 2020 at 07:26:06PM -0800, Hemant Kumar wrote:
This MHI client driver allows userspace clients to transfer
raw data between MHI device and host using standard file operations.
Driver instantiates UCI device o
On Mon, 30 Nov 2020 13:29:04 -0800 Tony Nguyen wrote:
> From: Mario Limonciello
>
> S0ix for GBE flows are needed for allowing the system to get into deepest
> power state, but these require coordination of components outside of
> control of Linux kernel. For systems that have confirmed to coord
> Hi Microchip,
>
> as ACL based blocking of PTP traffic seems not to work, I tried to install MAC
> based static lookup rules on the switch I successfully managed to block other
> non-PTP traffic, but for PTP the lookup table entry (see below) seems not to
> work. Incoming SYNC messages on port a
Starting with IPA v4.5, IP payload checksum offload is implemented
differently.
Prior to v4.5, the IPA hardware appends an rmnet_map_dl_csum_trailer
structure to each packet if checksum offload is enabled in the
download direction (modem->AP). In the upload direction (AP->modem)
a rmnet_map_ul_cs
This series includes one changed destined for a central header file
and a second (dependent on the first) that applies to the IPA driver.
If these should be posted a different way, please let me know.
The first patch introduces a new data structure defining the format
of a header that's used for "
Define a new rmnet_map_v5_csum_header structure type. It will be
used for inline checksum offload, supported with version 5 of the
QMAP protocol.
Signed-off-by: Alex Elder
---
include/linux/if_rmnet.h | 30 ++
1 file changed, 30 insertions(+)
diff --git a/include/li
On Mon, 30 Nov 2020 23:59:39 +0100
Petr Machata wrote:
> +char *sprint_size(__u32 sz, char *buf)
> +{
> + size_t len = SPRINT_BSIZE - 1;
> + double tmp = sz;
> +
> + if (sz >= 1024*1024 && fabs(1024*1024*rint(tmp/(1024*1024)) - sz) <
> 1024)
> + snprintf(buf, len, "%gMb",
On Mon, 30 Nov 2020 23:59:38 +0100
Petr Machata wrote:
> The functions print_rate() and sprint_rate() are useful for formatting
> rate-like values. The DCB tool would find these useful in the maxrate
> subtool. However, the current interface to these functions uses a global
> variable use_iec as
Add a self-tests validating libbpf is able to perform CO-RE relocations
against the type defined in kernel module BTF. if bpf_testmod.o is not
supported by the kernel (e.g., due to version mismatch), skip tests, instead
of failing.
Signed-off-by: Andrii Nakryiko
---
.../selftests/bpf/prog_tests/
Add bpf_testmod module, which is conceptually out-of-tree module and provides
ways for selftests/bpf to test various kernel module-related functionality:
raw tracepoint, fentry/fexit/fmod_ret, etc. This module will be auto-loaded by
test_progs test runner and expected by some of selftests to be pre
Previously skipped sub-tests would be counted as passing with ":OK" appened
in the log. Change that to be accounted as ":SKIP".
Signed-off-by: Andrii Nakryiko
---
tools/testing/selftests/bpf/test_progs.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/tools/testing/self
Teach libbpf to search for candidate types for CO-RE relocations across kernel
modules BTFs, in addition to vmlinux BTF. If at least one candidate type is
found in vmlinux BTF, kernel module BTFs are not iterated. If vmlinux BTF has
no matching candidates, then find all kernel module BTFs and searc
Refactor CO-RE relocation candidate search to not expect a single BTF, rather
return all candidate types with their corresponding BTF objects. This will
allow to extend CO-RE relocations to accommodate kernel module BTFs.
Acked-by: Martin KaFai Lau
Signed-off-by: Andrii Nakryiko
---
tools/lib/b
__module_address() needs to be called with preemption disabled or with
module_mutex taken. preempt_disable() is enough for read-only uses, which is
what this fix does. Also, module_put() does internal check for NULL, so drop
it as well.
Fixes: a38d1107f937 ("bpf: support raw tracepoints in modules
Add a btf_get_from_fd() helper, which constructs struct btf from in-kernel BTF
data by FD. This is used for loading module BTFs.
Signed-off-by: Andrii Nakryiko
---
tools/lib/bpf/btf.c | 61 +++--
tools/lib/bpf/libbpf_internal.h | 1 +
2 files changed, 36
Implement libbpf support for performing CO-RE relocations against types in
kernel module BTFs, in addition to existing vmlinux BTF support.
This is a first step towards fully supporting kernel module BTFs. Subsequent
patch sets will expand kernel and libbpf sides to allow using other
BTF-powered c
Remove memory allocation fail messages where the OOM stack
trace will make it obvious which allocation request failed.
Signed-off-by: Shannon Nelson
---
drivers/net/ethernet/pensando/ionic/ionic_dev.c | 2 +-
drivers/net/ethernet/pensando/ionic/ionic_lif.c | 8 +++-
drivers/net/ethernet/pe
Order of operations is slightly more correct in the driver
to change the netdev->mtu after the queues have been stopped
rather than before.
Signed-off-by: Shannon Nelson
---
drivers/net/ethernet/pensando/ionic/ionic_lif.c | 6 --
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/
These are a pair of small code cleanups.
Shannon Nelson (2):
ionic: remove some unnecessary oom messages
ionic: change mtu after queues are stopped
drivers/net/ethernet/pensando/ionic/ionic_dev.c | 2 +-
drivers/net/ethernet/pensando/ionic/ionic_lif.c | 14 +++---
drivers/net/ethe
On Mon, Nov 30, 2020 at 05:58:17PM -0600, George McCollister wrote:
> On Mon, Nov 30, 2020 at 5:50 PM Vladimir Oltean wrote:
> >
> > On Mon, Nov 30, 2020 at 10:52:35AM -0600, George McCollister wrote:
> > > Another possible option could be replacing for_each_netdev_rcu with
> > > for_each_netdev_s
On Mon, Nov 30, 2020 at 2:41 PM Toke Høiland-Jørgensen wrote:
>
> Andrii Nakryiko writes:
>
> > On Mon, Nov 30, 2020 at 7:42 AM Toke Høiland-Jørgensen
> > wrote:
> >>
> >> The kernel feature probing results in 'errno' being set if the probing
> >> fails (as is often the case). This can stick ar
On Tue, Nov 17, 2020 at 02:15:54PM -0600, Dan Murphy wrote:
> The DP83TD510 is a 10M single twisted pair Ethernet PHY
>
> Signed-off-by: Dan Murphy
> ---
> .../devicetree/bindings/net/ti,dp83td510.yaml | 64 +++
> 1 file changed, 64 insertions(+)
> create mode 100644 Documentati
Adding selftests for new added functionality to set TCP_WINDOW_CLAMP
from bpf setsockopt.
Signed-off-by: Prankur gupta
---
tools/testing/selftests/bpf/bpf_tcp_helpers.h | 1 +
.../selftests/bpf/prog_tests/tcpbpf_user.c| 4 +++
.../selftests/bpf/progs/test_tcpbpf_kern.c| 33
This patch contains support to set tcp window_field field from bpf setsockops.
Prankur gupta (2):
bpf: Adds support for setting window clamp
selftests/bpf: Add Userspace tests for TCP_WINDOW_CLAMP
net/core/filter.c | 8 +
tools/testing/selftests/bpf/bpf_tcp_h
Adds a new bpf_setsockopt for TCP sockets, TCP_BPF_WINDOW_CLAMP,
which sets the maximum receiver window size. It will be useful for
limiting receiver window based on RTT.
Signed-off-by: Prankur gupta
---
net/core/filter.c | 8
1 file changed, 8 insertions(+)
diff --git a/net/core/filte
On Tue, Nov 17, 2020 at 02:15:53PM -0600, Dan Murphy wrote:
> Per the 802.3cg spec the 10base T1L can operate at 2 different
> differential voltages 1v p2p and 2.4v p2p. The abiility of the PHY to
1.1V?
> drive that output is dependent on the PHY's on board power supply.
> This common feature is
On Mon, Nov 30, 2020 at 09:29:02PM +0100, Paolo Bonzini wrote:
On 30/11/20 20:44, Mike Christie wrote:
I have never seen a public/open-source vhost-scsi testsuite.
For patch 23 (the one that adds the lun reset support which is built on
patch 22), we can't add it to stable right now if you wante
On Mon, Nov 30, 2020 at 5:50 PM Vladimir Oltean wrote:
>
> On Mon, Nov 30, 2020 at 10:52:35AM -0600, George McCollister wrote:
> > Another possible option could be replacing for_each_netdev_rcu with
> > for_each_netdev_srcu and using list_for_each_entry_srcu (though it's
> > currently used nowhere
On Mon, Nov 30, 2020 at 10:52:35AM -0600, George McCollister wrote:
> Another possible option could be replacing for_each_netdev_rcu with
> for_each_netdev_srcu and using list_for_each_entry_srcu (though it's
> currently used nowhere else in the kernel). Has anyone considered
> using sleepable RCUs
On Fri, 27 Nov 2020, Paolo Abeni wrote:
Extending the data_lock scope in mptcp_incoming_option
we can use that to protect both snd_una and wnd_end.
In the typical case, we will have a single atomic op instead of 2
Acked-by: Florian Westphal
Signed-off-by: Paolo Abeni
---
net/mptcp/mptcp_diag.
On Fri, 27 Nov 2020, Paolo Abeni wrote:
Move the TX skbs allocation in mptcp_sendmsg() scope,
and tentatively pre-allocate a skbs number proportional
to the sendmsg() length.
Use the ssk tx skb cache to prevent the subflow allocation.
This allows removing the msk skb extension cache and will
m
On Fri, 27 Nov 2020, Paolo Abeni wrote:
We have some tasks triggered by the subflow receive path
which require to access the msk socket status, specifically:
mptcp_clean_una() and mptcp_push_pending()
We have almost everything in place to defer to the msk
release_cb such tasks when the msk sock
On Fri, 27 Nov 2020, Paolo Abeni wrote:
Such spinlock is currently used only to protect the 'owned'
flag inside the socket lock itself. With this patch, we extend
its scope to protect the whole msk receive path and
sk_forward_memory.
Given the above, we can always move data into the msk receive
On Fri, 27 Nov 2020, Paolo Abeni wrote:
This allows invoking an additional callback under the
socket spin lock.
Will be used by the next patches to avoid additional
spin lock contention.
Acked-by: Florian Westphal
Signed-off-by: Paolo Abeni
---
include/net/sock.h | 1 +
net/core/sock.c
On Fri, 27 Nov 2020, Paolo Abeni wrote:
This leverages the previous commit to reserve the wmem
required for the sendmsg() operation when the msk socket
lock is first acquired.
Some heuristics are used to get a reasonable [over] estimation of
the whole memory required. If we can't forward alloc s
> > A thought: Shouldn't the initialization of slave_dev->max_mtu in
> > dsa_slave_create() be capped by master->max_mtu minus tag overhead?
>
> Talk to Andrew:
> https://www.spinics.net/lists/netdev/msg645810.html
Yes, this is historic. DSA started life with Marvell switches
connected to Marvell
IPA v4.5 introduces a new unified timer architecture driven on the
19.2 MHz SoC crystal oscillator (XO). It is independent of the IPA
core clock and avoids some duplication.
Lower-resolution time stamps are derived from this by using only the
high-order bits of the 19.2 MHz Qtime clock. And time
Change aggr_time_limit_encoded() to properly calculate the
aggregation time limit to use for IPA v4.5.
Older IPA versions program the AGGR_GRANULARITY field of the
of the COUNTER_CFG register to set the granularity of the
aggregation timer, which we configure to be 500 microseconds.
Instead, IPA
Extend ipa_reg_init_hol_block_timer_val() so it properly calculates
the head-of-line block timeout to use for IPA v4.5.
Introduce hol_block_timer_qtime_val() to compute the value to use
for IPA v4.5, where Qtime is used as the basis of the timer. Call
that function from hol_block_timer_val() for
This series updates some IPA register definitions that change in
substantive ways for IPA v4.5.
One register defines parameters used by an endpoint to aggregate
multiple packets into a buffer. The size and position of most
fields in that register have changed with this new hardware version,
and c
IPA v4.5 significantly changes the format of the configuration
register used for endpoint aggregation. The AGGR_BYTE_LIMIT field
is now larger, and the positions of other fields are shifted. This
complicates the way we have to access this register because functions
like u32_encode_bits() require
Refactor action flags according to recommended kernel upstream naming using
TCA_ACT_ prefix. Implement support for new action terse dump flag.
Vlad Buslov (2):
tc: use TCA_ACT_ prefix for action flags
tc: implement support for action terse dump
include/uapi/linux/rtnetlink.h | 12 +++
Implement support for action terse dump using new TCA_ACT_FLAG_TERSE_DUMP
value of TCA_ROOT_FLAGS tlv. Set the flag when user requested it with
following example CLI (-br for 'brief'):
$ tc -s -br actions ls action tunnel_key
total acts 2
action order 0: tunnel_key index 1
A
Use TCA_ACT_FLAG_LARGE_DUMP_ON alias according to new preferred naming for
action flags.
Signed-off-by: Vlad Buslov
---
include/uapi/linux/rtnetlink.h | 12 +++-
tc/m_action.c | 4 ++--
2 files changed, 9 insertions(+), 7 deletions(-)
diff --git a/include/uapi/linux/rt
Hello:
This series was applied to bpf/bpf-next.git (refs/heads/master):
On Mon, 30 Nov 2020 19:51:55 +0100 you 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_tim
Stephen Hemminger writes:
> Gcc-10 complains about referencing a zero size array.
> This occurs because the array of keys is actually in the following
> structure which is part of the overall selector.
>
> The original code was safe, but better to just use the key
> array directly.
>
> Fixes: 2
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