I'm not an expert on this, but it looks about right. You can take a
look at build_skb() or __build_skb(). It shows the fields that needs
to be set before passing to netif_receive_skb/netif_rx.
On Fri, May 11, 2018 at 6:56 PM, Jason A. Donenfeld wrote:
> Hey Netdev,
>
> A UDP skb comes in via the
On 11 May 2018 at 14:41, Martin KaFai Lau wrote:
> On Fri, May 11, 2018 at 02:08:01PM -0700, Joe Stringer wrote:
>> On 10 May 2018 at 22:00, Martin KaFai Lau wrote:
>> > On Wed, May 09, 2018 at 02:07:05PM -0700, Joe Stringer wrote:
>> >> This patch adds a new BPF helper function, sk_lookup() whic
On 2018/5/12 0:58, Santosh Shilimkar wrote:
On 5/11/2018 12:48 AM, Yanjun Zhu wrote:
On 2018/5/11 13:20, DaeRyong Jeong wrote:
We report the crash: KASAN: null-ptr-deref Read in rds_ib_get_mr
Note that this bug is previously reported by syzkaller.
https://syzkaller.appspot.com/bug?id=0bb56
On Fri, May 11, 2018 at 5:10 PM David Miller wrote:
> I guess this is my reward for trying to break the monotony of
> pull requests :-)
I actually went back and checked a few older pull requests to see if this
had been going on for a while and I just hadn't noticed.
It just took me by surprise
The libbpf.h file in samples is clashing with libbpf's header.
Since it only includes a subset of filter.h instruction helpers
rename it to bpf_insn.h. Drop the unnecessary include of bpf/bpf.h.
Signed-off-by: Jakub Kicinski
---
samples/bpf/{libbpf.h => bpf_insn.h}| 8 +++-
samples/bpf/
There are many ways users may compile samples, some of them got
broken by commit 5f9380572b4b ("samples: bpf: compile and link
against full libbpf"). Improve path resolution and make libbpf
building a dependency of source files to force its build.
Samples should now again build with any of:
cd s
Hi!
Following patches address build issues after recent move to libbpf.
For out-of-tree builds we would see the following error:
gcc: error: samples/bpf/../../tools/lib/bpf/libbpf.a: No such file or directory
Mini-library called libbpf.h in samples is renamed to bpf_insn.h,
using linux/filter.h
There are two files in the tree called libbpf.h which is becoming
problematic. Most samples don't actually need the local libbpf.h
they simply include it to get to bpf/bpf.h. Include bpf/bpf.h
directly instead.
Signed-off-by: Jakub Kicinski
---
samples/bpf/bpf_load.c
Make complains that it doesn't know how to make libbpf.a:
scripts/Makefile.host:106: target 'samples/bpf/../../tools/lib/bpf/libbpf.a'
doesn't match the target pattern
Now that we have it as a dependency of the sources simply add libbpf.a
to libraries not objects.
Signed-off-by: Jakub Kicinski
From: Linus Torvalds
Date: Fri, 11 May 2018 14:25:59 -0700
> David, is there something you want to tell us?
>
> Drugs are bad, m'kay..
I guess this is my reward for trying to break the monotony of
pull requests :-)
From: Florian Fainelli
Date: Fri, 11 May 2018 16:38:02 -0700
> David, please discard that for now, the IPv4 part is correct, but I am
> not fixing the bug correctly for the IPv6 part. v2 coming some time next
> week. Thank you!
Ok.
On 05/11/2018 04:24 PM, Florian Fainelli wrote:
> When we let the kernel pick up a rule location with RX_CLS_LOC_ANY, we
> would be able to overwrite the last rules because of a number of issues:
>
> - the IPv4 code path would not be checking that rule_index is within
> bounds, the IPv6 code pat
--
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This struct will hold all the context used during the outq flush, so we
don't have to pass lots of pointers all around.
Checked on x86_64, the compiler inlines all these functions and there is no
derreference added because of the struct.
Marcelo Ricardo Leitner (3):
sctp: add sctp_flush_ctx, a
A collection of fixups from previous patches, left for later to not
introduce unnecessary changes while moving code around.
Signed-off-by: Marcelo Ricardo Leitner
---
net/sctp/outqueue.c | 20 +++-
1 file changed, 7 insertions(+), 13 deletions(-)
diff --git a/net/sctp/outqueue.c
Pre-compute these so the compiler won't reload them (due to
no-strict-aliasing).
Signed-off-by: Marcelo Ricardo Leitner
---
net/sctp/outqueue.c | 99 -
1 file changed, 45 insertions(+), 54 deletions(-)
diff --git a/net/sctp/outqueue.c b/net/sc
With this struct we avoid passing lots of variables around and taking care
of updating the current transport/packet.
Signed-off-by: Marcelo Ricardo Leitner
---
net/sctp/outqueue.c | 182 +---
1 file changed, 88 insertions(+), 94 deletions(-)
diff
When we let the kernel pick up a rule location with RX_CLS_LOC_ANY, we
would be able to overwrite the last rules because of a number of issues:
- the IPv4 code path would not be checking that rule_index is within
bounds, the IPv6 code path would only be checking the second index and
not the fi
Remove an inner one, which tended to be error prone due to the cascading
and it can be replaced by a simple if ().
Rework the outer one so that the actual flush code is not inside it. Now
we first validate if we can or cannot send data, return if not, and then
the flush code.
Suggested-by: Xin Lo
To the new sctp_outq_flush_data. Again, smaller functions and with well
defined objectives.
Signed-off-by: Marcelo Ricardo Leitner
---
net/sctp/outqueue.c | 144 ++--
1 file changed, 73 insertions(+), 71 deletions(-)
diff --git a/net/sctp/outqueue
We had two spots doing such complex operation and they were very close to
each other, a bit more tailored to here or there.
This patch unifies these under the same function,
sctp_outq_select_transport, which knows how to handle control chunks and
original transmissions (but not retransmissions).
To the new sctp_outq_flush_transports.
Comment on Nagle is outdated and removed. Nagle is performed earlier, while
checking if the chunk fits the packet: if the outq length is not enough to
fill the packet, it returns SCTP_XMIT_DELAY.
So by when it gets to sctp_outq_flush_transports, it has to go
Retransmissions may be triggered when in user context, so lets make use
of gfp.
Signed-off-by: Marcelo Ricardo Leitner
---
net/sctp/outqueue.c | 17 +
1 file changed, 9 insertions(+), 8 deletions(-)
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index
e867bde0b2d93f730f
Named sctp_outq_flush_ctrl and, with that, keep the contexts contained.
One small fix embedded is the reset of one_packet at every iteration.
This allows bundling of some control chunks in case they were preceded by
another control chunk that cannot be bundled.
Other than this, it has the same be
This patch renames current sctp_outq_flush_rtx to __sctp_outq_flush_rtx
and create a new sctp_outq_flush_rtx, with the code that was on
sctp_outq_flush. Again, the idea is to have functions with small and
defined objectives.
Yes, there is an open-coded path selection in the now sctp_outq_flush_rtx
Factor out the code for generating singletons. It's used only once, but
helps to keep the context contained.
The const variables are to ease the reading of subsequent calls in there.
Signed-off-by: Marcelo Ricardo Leitner
---
net/sctp/outqueue.c | 22 +++---
1 file changed, 15 i
Currently sctp_outq_flush does many different things and arguably
unrelated, such as doing transport selection and outq dequeueing.
This patchset refactors it into smaller and more dedicated functions.
The end behavior should be the same.
The next patchset will rework the function parameters.
Ma
On Thu, May 10, 2018 at 8:51 PM, Eric Dumazet wrote:
>
>
> On 05/10/2018 05:38 PM, Sean Tranchetti wrote:
>> Using GSO in the UDP path on a device with
>> scatter-gather netdevice feature disabled will result in a kernel
>> panic with the following call stack:
>>
>> This panic is the result of all
Hey Netdev,
A UDP skb comes in via the encap_rcv interface. I do a lot of wild
things to the bytes in the skb -- change where the head starts, modify
a few fragments, decrypt some stuff, trim off some things at the end,
etc. In other words, I'm decapsulating the skb in a pretty intense
way. I bene
Hi Andrew,
On Fri, May 11, 2018 at 09:24:46PM +0200, Andrew Lunn wrote:
> > I could reorder the probe function a little to initialize the PHY before
> > performing the MAC reset, drop this patch and the AR803X hibernation
> > stuff from patch 2 if you like. But again, I can't actually test the
> >
On 2018-05-10 17:21, Richard Guy Briggs wrote:
> On 2018-05-09 11:13, Paul Moore wrote:
> > On Fri, May 4, 2018 at 4:54 PM, Richard Guy Briggs wrote:
> > > Recognizing that the loginuid is an internal audit value, use an access
> > > function to retrieve the audit loginuid value for the task rathe
Debabrata Banerjee wrote:
>In a mixed environment it may be difficult to tell if your hardware
>support carrier, if it does not it can always report true. With a new
>use_carrier option of 2, we can check both carrier and link status
>sequentially, instead of one or the other
What do you
Hi Finn,
Am 11.05.2018 um 22:06 schrieb Finn Thain:
>> You would have to be careful not to overwrite a pdev->dev.dma_mask and
>> pdev->dev.dma_coherent_mask that might have been set in a platform
>> device passed via platform_device_register here. Coldfire is the only
>> m68k platform currently
Debabrata Banerjee wrote:
>The rx load balancing provided by balance-alb is not mutually
>exclusive with using hashing for tx selection, and should provide a decent
>speed increase because this eliminates spinlocks and cache contention.
>
>Signed-off-by: Debabrata Banerjee
>---
> drivers/net/bon
On Thu, May 10, 2018 at 6:09 PM, wrote:
> From: Gao Feng
>
> The skb flow limit is implemented for each CPU independently. In the
> current codes, the function skb_flow_limit gets the softnet_data by
> this_cpu_ptr. But the target cpu of enqueue_to_backlog would be not
> the current cpu when ena
On Thu, 10 May 2018 10:24:39 -0700, Jakub Kicinski wrote:
> samples/bpf currently cherry-picks object files from tools/lib/bpf
> to link against. Just compile the full library and link statically
> against it.
>
> Signed-off-by: Jakub Kicinski
> Reviewed-by: Quentin Monnet
Looks like this brea
On Fri, May 11, 2018 at 02:08:01PM -0700, Joe Stringer wrote:
> On 10 May 2018 at 22:00, Martin KaFai Lau wrote:
> > On Wed, May 09, 2018 at 02:07:05PM -0700, Joe Stringer wrote:
> >> This patch adds a new BPF helper function, sk_lookup() which allows BPF
> >> programs to find out if there is a so
Banerjee, Debabrata wrote:
>> From: Jay Vosburgh [mailto:jay.vosbu...@canonical.com]
>> Debabrata Banerjee wrote:
>
>> >- if
>> (!ether_addr_equal_64bits(rx_hash_table[index].mac_dst,
>> >-mac_bcast) &&
>> >-
>> !i
David, is there something you want to tell us?
Drugs are bad, m'kay..
Linus
On Fri, May 11, 2018 at 2:00 PM David Miller wrote:
> "from Kevin Easton", "Thanks to Bhadram Varka", "courtesy of Gustavo A.
> R. Silva", "To Eric Dumazet we are most grateful for this fix", "This
> fi
> From: Jay Vosburgh [mailto:jay.vosbu...@canonical.com]
> Debabrata Banerjee wrote:
> >-if
> (!ether_addr_equal_64bits(rx_hash_table[index].mac_dst,
> >- mac_bcast) &&
> >-
> !is_zero_ether_addr(rx_hash_table[ind
All Marvell switch families except 88E6390 have direct registers in
Global 1 for IEEE and IP priorities override mapping. The 88E6390 uses
indirect tables instead.
Add .ieee_pri_map and .ip_pri_map ops to distinct that and call them
from a mv88e6xxx_pri_setup helper. Only non-6390 are concerned AT
The mv88e6xxx driver is still writing arbitrary registers at setup time,
e.g. priority override bits. Add ops for them and provide specific setup
functions for priority and stats before getting rid of the erroneous
mv88e6xxx_g1_setup code, as previously done with Global 2.
Vivien Didelot (3):
ne
The Marvell 88E6390 model has its histogram mode bits moved in the
Global 1 Control 2 register. Use the previously introduced
mv88e6xxx_g1_ctl2_mask helper to set them.
At the same time complete the documentation of the said register.
Signed-off-by: Vivien Didelot
---
drivers/net/dsa/mv88e6xxx/
Now that the Global 1 specific setup function only setup the statistics
unit, kill it in favor of a mv88e6xxx_stats_setup function.
Signed-off-by: Vivien Didelot
---
drivers/net/dsa/mv88e6xxx/chip.c | 27 ++-
1 file changed, 10 insertions(+), 17 deletions(-)
diff --git a
On Fri, 11 May 2018 20:12:12 +0200 Jesper Dangaard Brouer
wrote:
> diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
> index 03ed492c4e14..debdb6286170 100644
> --- a/include/linux/netdevice.h
> +++ b/include/linux/netdevice.h
> @@ -1185,9 +1185,13 @@ struct dev_ifalias {
> *
On 10 May 2018 at 22:00, Martin KaFai Lau wrote:
> On Wed, May 09, 2018 at 02:07:05PM -0700, Joe Stringer wrote:
>> This patch adds a new BPF helper function, sk_lookup() which allows BPF
>> programs to find out if there is a socket listening on this host, and
>> returns a socket pointer which the
1) Verify lengths of keys provided by the user is AF_KEY, from
Kevin Easton.
2) Add device ID for BCM89610 PHY. Thanks to Bhadram Varka.
3) Add Spectre guards to some ATM code, courtesy of Gustavo
A. R. Silva.
4) Fix infinite loop in NSH protocol code. To Eric Dumazet
we are most gra
Debabrata Banerjee wrote:
>Replace homegrown mac addr checks with faster defs from etherdevice.h
>
>Signed-off-by: Debabrata Banerjee
>---
> drivers/net/bonding/bond_alb.c | 28 +---
> 1 file changed, 9 insertions(+), 19 deletions(-)
>
>diff --git a/drivers/net/bonding/bon
On Fri, May 11, 2018 at 12:08:33PM -0700, Eric Dumazet wrote:
>
>
> On 05/11/2018 11:41 AM, Marcelo Ricardo Leitner wrote:
>
> > But calling ip6_xmit with rcu_read_lock is expected. tcp stack also
> > does it.
> > Thus I think this is more of an issue with IPv6 stack. If a host has
> > an extensive
From: Roman Mashak
Date: Fri, 11 May 2018 14:35:33 -0400
> When application fails to pass flags in netlink TLV when replacing
> existing skbmod action, the kernel will leak refcnt:
>
> $ tc actions get action skbmod index 1
> total acts 0
>
> action order 0: skbmod pipe set smac 00:11:2
From: Dan Murphy
Date: Fri, 11 May 2018 13:08:19 -0500
> Add support for the DP83811 phy.
>
> The DP83811 supports both rgmii and sgmii interfaces.
> There are 2 part numbers for this the DP83TC811R does not
> reliably support the SGMII interface but the DP83TC811S will.
>
> There is not a way
From: Jiri Pirko
Date: Fri, 11 May 2018 17:45:32 +0200
> From: Jiri Pirko
>
> In case modules are not configured, error out when tp->ops is null
> and prevent later null pointer dereference.
>
> Fixes: 33a48927c193 ("sched: push TC filter protocol creation into a separate
> function")
> Signe
From: Ganesh Goudar
Date: Fri, 11 May 2018 18:34:43 +0530
> From: Arjun Vynipadath
>
> adapter->rawf_cnt was not initialized, thereby
> ndo_udp_tunnel_{add/del} was returning immediately
> without initializing {vxlan/geneve}_port.
> Also initializes mps_encap_entry refcnt.
>
> Fixes: 846eac3fc
From: Ganesh Goudar
Date: Fri, 11 May 2018 18:35:33 +0530
> set cntrl bits to indicate whether inner header checksum
> needs to be calculated whenever the packet is an encapsulated
> packet and enable supported encap features.
>
> Fixes: d0a1299c6bf7 ("cxgb4: add support for vxlan segmentation o
From: Ganesh Goudar
Date: Fri, 11 May 2018 18:36:16 +0530
> do not sleep while adding or deleting udp tunnel.
>
> Fixes: 846eac3fccec ("cxgb4: implement udp tunnel callbacks")
> Signed-off-by: Ganesh Goudar
Applied.
From: Ganesh Goudar
Date: Fri, 11 May 2018 18:37:34 +0530
> Add 0x50ad device id for new T5 card.
>
> Signed-off-by: Ganesh Goudar
Applied.
From: Tonghao Zhang
Date: Fri, 11 May 2018 02:52:32 -0700
> The method ndo_start_xmit is defined as returning a
> netdev_tx_t, which is a typedef for an enum type,
> but the implementation in this driver returns an int.
>
> Signed-off-by: Tonghao Zhang
Applied to net-next
From: Tonghao Zhang
Date: Fri, 11 May 2018 02:53:11 -0700
> Use the skb_get_queue_mapping, skb_set_queue_mapping
> and skb_rx_queue_recorded for skb queue_mapping in bonding
> driver, but not use it directly.
>
> Signed-off-by: Tonghao Zhang
Applied to net-next
From: Tonghao Zhang
Date: Fri, 11 May 2018 02:53:12 -0700
> Signed-off-by: Tonghao Zhang
Applied to net-next.
From: William Tu
Date: Fri, 11 May 2018 05:49:47 -0700
> Currently the truncated bit is set only when 1) the mirrored packet
> is larger than mtu and 2) the ipv4 packet tot_len is larger than
> the actual skb->len. This patch adds another case for detecting
> whether ipv6 packet is truncated or
On Fri, 2018-05-11 at 20:15 +0300, Alexey Kodanev wrote:
> Commit d452930fd3b9 ("selinux: Add SCTP support") breaks
> compatibility
> with the old programs that can pass sockaddr_in structure with
> AF_UNSPEC
> and INADDR_ANY to bind(). As a result, bind() returns EAFNOSUPPORT
> error.
> This was f
From: Ido Schimmel
Date: Fri, 11 May 2018 11:57:29 +0300
> Petr says:
>
> This patch set fixes a couple of nits in mlxsw's SPAN implementation:
> two counts of inaccurate variable name and one count of unsuitable error
> code, fixed, respectively, in patches #1 and #2.
Series applied, thanks.
From: Yoshihiro Shimoda
Date: Fri, 11 May 2018 12:18:56 +0900
> Add documentation for r8a77990 compatible string to renesas ravb device
> tree bindings documentation.
>
> Signed-off-by: Yoshihiro Shimoda
I'm assuming this isn't targetted at one of my trees. Just FYI.
From: Jeff Kirsher
Date: Fri, 11 May 2018 12:47:18 -0700
> This series contains fixes to the ice, ixgbe and ixgbevf drivers.
...
> The following are changes since commit
> 5ae4bbf76928b401fe467e837073d939300adbf0:
> Merge tag 'mlx5-fixes-2018-05-10' of
> git://git.kernel.org/pub/scm/linux/ke
From: David Howells
Date: Thu, 10 May 2018 23:45:17 +0100
> Here are three fixes for AF_RXRPC and two tracepoints that were useful for
> finding them:
...
> The patches are tagged here:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git
> rxrpc-fixes-20180510
P
From: Roman Mashak
Date: Fri, 11 May 2018 10:55:09 -0400
> When application fails to pass flags in netlink TLV for a new skbedit action,
> the kernel results in the following oops:
...
> The caller calls action's ->init() and passes pointer to "struct tc_action
> *a",
> which later may be initi
Series of fixes to how rlb updates are handled, code cleanup, allowing
higher performance tx hashing in balance-alb mode, and reliability of
link up/down monitoring.
Debabrata Banerjee (4):
bonding: don't queue up extraneous rlb updates
bonding: use common mac addr checks
bonding: allow use
From: Wenwen Wang
Date: Sat, 5 May 2018 14:32:46 -0500
> To avoid such issues, this patch adds a check after the second copy in the
> function diva_xdi_write(). If the adapter number is not equal to the one
> obtained in the first copy, (-4) will be returned to divas_write(), which
> will then r
In a mixed environment it may be difficult to tell if your hardware
support carrier, if it does not it can always report true. With a new
use_carrier option of 2, we can check both carrier and link status
sequentially, instead of one or the other
Signed-off-by: Debabrata Banerjee
---
Documentati
From: Emil Tantilov
Add check for unsupported module and return the error code.
This fixes a Coverity hit due to unused return status from setup_sfp.
Signed-off-by: Emil Tantilov
Tested-by: Andrew Bowers
Signed-off-by: Jeff Kirsher
---
drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 3 +++
1
From: Jeff Shaw
Prior to this commit, the rq_last_status was only set when hardware
responded with an error. This leads to rq_last_status being invalid
in the future when hardware eventually responds without error. This
commit resolves the issue by unconditionally setting rq_last_status
with the
From: Luc Van Oostenryck
The method ndo_start_xmit() is defined as returning an 'netdev_tx_t',
which is a typedef for an enum type, but the implementation in this
driver returns an 'int'.
Fix this by returning 'netdev_tx_t' in this driver too.
Signed-off-by: Luc Van Oostenryck
Tested-by: Andre
From: Colin Ian King
The error clean up path kfree's adapter->ipsec and should be
instead kfree'ing ipsec. Fix this. Also, the err1 error exit path
does not need to kfree ipsec because this failure path was for
the failed allocation of ipsec.
Detected by CoverityScan, CID#146424 ("Resource Leak
arps for incomplete entries can't be sent anyway.
Signed-off-by: Debabrata Banerjee
---
drivers/net/bonding/bond_alb.c | 18 --
1 file changed, 12 insertions(+), 6 deletions(-)
diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index 5eb0df2e5464..c2f6c
This series contains fixes to the ice, ixgbe and ixgbevf drivers.
Jeff Shaw provides a fix to ensure rq_last_status gets set, whether or
not the hardware responds with an error in the ice driver.
Emil adds a check for unsupported module during the reset routine for
ixgbe.
Luc Van Oostenryck fixe
The rx load balancing provided by balance-alb is not mutually
exclusive with using hashing for tx selection, and should provide a decent
speed increase because this eliminates spinlocks and cache contention.
Signed-off-by: Debabrata Banerjee
---
drivers/net/bonding/bond_alb.c | 20 ++
Replace homegrown mac addr checks with faster defs from etherdevice.h
Signed-off-by: Debabrata Banerjee
---
drivers/net/bonding/bond_alb.c | 28 +---
1 file changed, 9 insertions(+), 19 deletions(-)
diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_a
> I could reorder the probe function a little to initialize the PHY before
> performing the MAC reset, drop this patch and the AR803X hibernation
> stuff from patch 2 if you like. But again, I can't actually test the
> result on the affected hardware.
Hi Paul
I don't like a MAC driver poking arou
When a system is under memory presure (high usage with fragments),
the original 256KB ICM chunk allocations will likely trigger kernel
memory management to enter slow path doing memory compact/migration
ops in order to complete high order memory allocations.
When that happens, user processes calli
On 5/11/2018 3:27 AM, Håkon Bugge wrote:
On 11 May 2018, at 01:31, Qing Huang wrote:
When a system is under memory presure (high usage with fragments),
the original 256KB ICM chunk allocations will likely trigger kernel
memory management to enter slow path doing memory compact/migration
ops in
From: Andrew Lunn
Date: Fri, 11 May 2018 21:10:11 +0200
> Humm, i thought i had given one. But i cannot find it in the mail
> archive. Going senile :-(
You aren't going senile, there is just are a huge number of patches
being submitted since net-next openned up.
On 05/11/2018 11:08 AM, Dan Murphy wrote:
> Add support for the DP83811 phy.
>
> The DP83811 supports both rgmii and sgmii interfaces.
> There are 2 part numbers for this the DP83TC811R does not
> reliably support the SGMII interface but the DP83TC811S will.
>
> There is not a way to differentiat
On Fri, May 11, 2018 at 01:51:28PM -0500, Dan Murphy wrote:
> Andrew
>
> On 05/11/2018 01:30 PM, Andrew Lunn wrote:
> > On Fri, May 11, 2018 at 01:08:19PM -0500, Dan Murphy wrote:
> >> Add support for the DP83811 phy.
> >>
> >> The DP83811 supports both rgmii and sgmii interfaces.
> >> There are 2
On Fri, May 11, 2018 at 11:35 AM, Roman Mashak wrote:
> When application fails to pass flags in netlink TLV when replacing
> existing skbmod action, the kernel will leak refcnt:
>
> $ tc actions get action skbmod index 1
> total acts 0
>
> action order 0: skbmod pipe set smac 00:11:22:33:4
On 05/11/2018 11:41 AM, Marcelo Ricardo Leitner wrote:
> But calling ip6_xmit with rcu_read_lock is expected. tcp stack also
> does it.
> Thus I think this is more of an issue with IPv6 stack. If a host has
> an extensive ip6tables ruleset, it probably generates this more
> easily.
>
>>> sctp_
Andrew
On 05/11/2018 01:30 PM, Andrew Lunn wrote:
> On Fri, May 11, 2018 at 01:08:19PM -0500, Dan Murphy wrote:
>> Add support for the DP83811 phy.
>>
>> The DP83811 supports both rgmii and sgmii interfaces.
>> There are 2 part numbers for this the DP83TC811R does not
>> reliably support the SGMII
On Fri, May 11, 2018 at 12:00:38PM +0200, Dmitry Vyukov wrote:
> On Mon, Apr 30, 2018 at 8:09 PM, syzbot
> wrote:
> > Hello,
> >
> > syzbot found the following crash on:
> >
> > HEAD commit:5d1365940a68 Merge
> > git://git.kernel.org/pub/scm/linux/kerne...
> > git tree: net-next
> > cons
On Fri, May 11, 2018 at 11:25:02AM -0700, Paul Burton wrote:
> Hi Andrew,
>
> On Fri, May 11, 2018 at 02:26:19AM +0200, Andrew Lunn wrote:
> > On Thu, May 10, 2018 at 04:16:52PM -0700, Paul Burton wrote:
> > > From: Andrew Lunn
> > >
> > > On some boards, this PHY has a problem when it hibernate
Hi Andrew,
On Fri, May 11, 2018 at 02:26:19AM +0200, Andrew Lunn wrote:
> On Thu, May 10, 2018 at 04:16:52PM -0700, Paul Burton wrote:
> > From: Andrew Lunn
> >
> > On some boards, this PHY has a problem when it hibernates. Export this
> > function to a board can register a PHY fixup to disable
When application fails to pass flags in netlink TLV when replacing
existing skbmod action, the kernel will leak refcnt:
$ tc actions get action skbmod index 1
total acts 0
action order 0: skbmod pipe set smac 00:11:22:33:44:55
index 1 ref 1 bind 0
For example, at this point a bu
On Sat, May 05, 2018 at 10:59:02AM -0700, syzbot wrote:
> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit:c1c07416cdd4 Merge tag 'kbuild-fixes-v4.17' of git://git.k..
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=12164c9780
> kernel
On Fri, May 11, 2018 at 01:08:19PM -0500, Dan Murphy wrote:
> Add support for the DP83811 phy.
>
> The DP83811 supports both rgmii and sgmii interfaces.
> There are 2 part numbers for this the DP83TC811R does not
> reliably support the SGMII interface but the DP83TC811S will.
>
> There is not a w
On Fri, May 11, 2018 at 10:49:25AM +0800, Jason Wang wrote:
> We used to initialize ptr_ring during TUNSETIFF, this is because its
> size depends on the tx_queue_len of netdevice. And we try to clean it
> up when socket were detached from netdevice. A race were spotted when
> trying to do uninit du
Functionality is the same, but the ndo_xdp_xmit call is now
simply invoked from inside the devmap.c code.
V2: Fix compile issue reported by kbuild test robot
Signed-off-by: Jesper Dangaard Brouer
---
include/linux/bpf.h| 14 +++---
include/trace/events/xdp.h |9 -
This patchset change ndo_xdp_xmit API to take a bulk of xdp frames.
When kernel is compiled with CONFIG_RETPOLINE, every indirect function
pointer (branch) call hurts performance. For XDP this have a huge
negative performance impact.
This patchset reduce the needed (indirect) calls to ndo_xdp_xmi
Like cpumap create queue for xdp frames that will be bulked. For now,
this patch simply invoke ndo_xdp_xmit foreach frame. This happens,
either when the map flush operation is envoked, or when the limit
DEV_MAP_BULK_SIZE is reached.
Signed-off-by: Jesper Dangaard Brouer
---
kernel/bpf/devmap.c
This patch change the API for ndo_xdp_xmit to support bulking
xdp_frames.
When kernel is compiled with CONFIG_RETPOLINE, XDP sees a huge slowdown.
Most of the slowdown is caused by DMA API indirect function calls, but
also the net_device->ndo_xdp_xmit() call.
Benchmarked patch with CONFIG_RETPOLI
Notice how this allow us get XDP statistic without affecting the XDP
performance, as tracepoint is no-longer activated on a per packet basis.
The xdp_monitor sample/tool is updated to use this new tracepoint.
Signed-off-by: Jesper Dangaard Brouer
---
include/linux/bpf.h|6 -
On Mon, May 07, 2018 at 03:39:19PM -0700, Randy Dunlap wrote:
> Hi,
>
> On 05/07/2018 03:10 PM, Sridhar Samudrala wrote:
> >
> > Signed-off-by: Sridhar Samudrala
> > ---
> > MAINTAINERS|7 +
> > include/linux/netdevice.h | 16 +
> > include/net/net_failover.h | 52 +++
>
Add support for the DP83811 phy.
The DP83811 supports both rgmii and sgmii interfaces.
There are 2 part numbers for this the DP83TC811R does not
reliably support the SGMII interface but the DP83TC811S will.
There is not a way to differentiate these parts from the
hardware or register set. So thi
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