On 7/2/18, David Miller wrote:
> From: Li RongQing
> Date: Mon, 2 Jul 2018 19:41:43 +0800
>
>> After 07d78363dcffd [net: Convert NAPI gro list into a small hash table]
>> there is 8 hash buckets, which allow more flows to be held for merging.
>>
>> keep each as original list length, so increase
On Mon, 2018-07-02 at 09:40 -0600, David Ahern wrote:
> On 7/2/18 9:11 AM, Edward Cree wrote:
> > This patch series adds the capability for the network stack to receive a
> > list of packets and process them as a unit, rather than handling each
> > packet singly in sequence. This is done by
After commit b6c5734db070 ("sctp: fix the handling of ICMP Frag Needed
for too small MTUs"), sctp_transport_update_pmtu would refetch pathmtu
from the dst and set it to transport's pathmtu without any check.
The new pathmtu may be lower than MINSEGMENT if the dst is obsolete and
updated by
On Jul 2 22:49, Heiner Kallweit wrote:
> Network core refuses to change mac address because flag
> IFF_LIVE_ADDR_CHANGE isn't set. Set this missing flag.
>
> Fixes: 1f7aa2bc268e ("r8169: simplify rtl_set_mac_address")
> Reported-by: Corinna Vinschen
> Signed-off-by: Heiner Kallweit
> ---
>
Add support to iproute2 for port isolation config and selftests for it.
Nikolay Aleksandrov (2):
selftests: forwarding: lib: extract ping and ping6 so they can be
reused
selftests: forwarding: test for bridge port isolation
.../net/forwarding/bridge_port_isolation.sh| 151
On Mon, Jul 02, 2018 at 04:14:12PM +0100, Edward Cree wrote:
> Also involved adding a way to run a netfilter hook over a list of packets.
> Rather than attempting to make netfilter know about lists (which would be
> a major project in itself) we just let it call the regular okfn (in this
> case
On Mon, Jul 2, 2018 at 11:12 PM, David Ahern wrote:
> On 7/2/18 12:30 AM, Xin Long wrote:
>> +ping_ipv4()
>> +{
>> + sysctl_set net.ipv4.icmp_echo_ignore_broadcasts 0
>> + bc_forwarding_disable
>> + ping_test $h1 198.51.100.255
>> +
>> + iptables -A INPUT -i vrf-r1 -p icmp -j DROP
On Mon, Jul 02, 2018 at 06:21:10PM +0800, Xin Long wrote:
> Now dscp and flowlabel are set from sock when sending the packets,
> but being multi-homing, sctp also supports for dscp and flowlabel
> per transport, which is described in section 8.1.12 in RFC6458.
>
> v1->v2:
> - define
On Mon, Jul 2, 2018 at 11:05 PM, David Ahern wrote:
> On 7/2/18 12:30 AM, Xin Long wrote:
>> @@ -2143,6 +2149,10 @@ static int devinet_conf_proc(struct ctl_table *ctl,
>> int write,
>> if ((new_value == 0) && (old_value != 0))
>>
Extract ping and ping6 command execution so the return value can be
checked by the caller, this is needed for port isolation tests that are
intended to fail.
Signed-off-by: Nikolay Aleksandrov
---
tools/testing/selftests/net/forwarding/lib.sh | 22 --
1 file changed, 16
This patch adds support for the new isolated port option which, if set,
would allow the isolated ports to communicate only with non-isolated
ports and the bridge device. The option can be set via the bridge or ip
link type bridge_slave commands, e.g.:
$ ip link set dev eth0 type bridge_slave
This test checks if the bridge port isolation feature works as expected
by performing ping/ping6 tests between hosts that are isolated (should
not work) and between an isolated and non-isolated hosts (should work).
Same test is performed for flooding from and to isolated and
non-isolated ports.
Example output is of tos and ttl.
Befoe this fix the format used %x caused output of the pointer
instead of the intended string created in the out variable.
Fixes: e28b88a464c4 ("tc: jsonify flower filter")
Signed-off-by: Roi Dayan
---
tc/f_flower.c | 2 +-
1 file changed, 1 insertion(+), 1
Pablo Neira Ayuso wrote:
> On Mon, Jul 02, 2018 at 04:14:12PM +0100, Edward Cree wrote:
> > Also involved adding a way to run a netfilter hook over a list of packets.
> > Rather than attempting to make netfilter know about lists (which would be
> > a major project in itself) we just let it call
Hi David,
The following pull-request contains BPF updates for your *net-next* tree.
The main changes are:
1) Various improvements to bpftool and libbpf, that is, bpftool build
speed improvements, missing BPF program types added for detection
by section name, ability to load programs from
On Tue, Jun 26, 2018 at 07:46:11PM -0700, Saeed Mahameed wrote:
> The idea from this patch is to define a well known structure for XDP meta
> data fields format and offset placement inside the xdp data meta buffer.
>
> For that driver will need some static information to know what to
> provide
On Tue, Jul 03, 2018 at 04:30:47PM +0800, Xin Long wrote:
> After commit b6c5734db070 ("sctp: fix the handling of ICMP Frag Needed
> for too small MTUs"), sctp_transport_update_pmtu would refetch pathmtu
> from the dst and set it to transport's pathmtu without any check.
>
> The new pathmtu may
On Tue, Jul 03, 2018 at 10:19:09PM +0900, Taehee Yoo wrote:
>
> diff --git a/lib/rhashtable.c b/lib/rhashtable.c
> index 0e04947..8ea27fa 100644
> --- a/lib/rhashtable.c
> +++ b/lib/rhashtable.c
> @@ -1134,6 +1134,7 @@ void rhashtable_free_and_destroy(struct rhashtable *ht,
>
I'm seeing problems with tunnelled traffic with Mellanox Technologies MT27710
Family [ConnectX-4 Lx] using vanilla driver from linux 4.4.y
Packets with payload bigger than 116 bytes are not exmited.
Smaller packets and normal ipv6 works fine.
In linux 4.9, 4.14 and out-of-tree driver
From: Edward Cree
Date: Mon, 2 Jul 2018 16:11:36 +0100
> This patch series adds the capability for the network stack to receive a
> list of packets and process them as a unit, rather than handling each
> packet singly in sequence. This is done by factoring out the existing
> datapath code at
A commandline like 'tc -d class show dev dev-name' does not
display value of prio and quantum option when we use htb qdisc.
This patch fixes the bug.
Signed-off-by: Fumihiko Kakuma
---
tc/q_htb.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/tc/q_htb.c b/tc/q_htb.c
On Tue, Jul 3, 2018 at 4:14 PM Taran Lynn wrote:
>
> Hello,
> I'm new to linux development and am working on creating a qdisc module,
> similar to those under net/sched/sch_*.c. Currently I'm stuck on two
> things.
>
> 1. What's the best way to set the maximum bit rate?
> 2. How do I determine
From: Li RongQing
Date: Tue, 3 Jul 2018 14:21:48 +0800
> On 7/2/18, David Miller wrote:
>> From: Li RongQing
>> Date: Mon, 2 Jul 2018 19:41:43 +0800
>>
>>> After 07d78363dcffd [net: Convert NAPI gro list into a small hash table]
>>> there is 8 hash buckets, which allow more flows to be held
On Tue, Jul 3, 2018 at 6:36 AM Wei Yongjun wrote:
>
> 'keys_ex' is malloced by tcf_pedit_keys_ex_parse() in tcf_pedit_init()
> but not all of the error handle path free it, this may cause memory
> leak. This patch fix it.
>
> Fixes: 71d0ed7079df ("net/act_pedit: Support using offset relative to
On Tue, Jul 3, 2018 at 8:33 PM fumihiko kakuma wrote:
>
> A commandline like 'tc -d class show dev dev-name' does not
> display value of prio and quantum option when we use htb qdisc.
> This patch fixes the bug.
>
> Signed-off-by: Fumihiko Kakuma
Good catch!
Acked-by: Cong Wang
bpf_prog_load() is a very useful helper but it doesn't give us full
flexibility of modifying the BPF objects before loading. Open code
bpf_prog_load() in bpftool so we can add extra logic in following
commits.
Signed-off-by: Jakub Kicinski
Reviewed-by: Quentin Monnet
---
Add map parameter to prog load which will allow reuse of existing
maps instead of creating new ones.
Signed-off-by: Jakub Kicinski
Reviewed-by: Quentin Monnet
---
.../bpftool/Documentation/bpftool-prog.rst| 20 ++-
tools/bpf/bpftool/bash-completion/bpftool | 67 +++-
Add helper to libbpf for recognizing maps which should not have
ifindex set when program is loaded. These maps only contain
host metadata and therefore are not marked for offload, e.g.
the perf event map.
Use this helper in bpf_prog_load_xattr().
Signed-off-by: Jakub Kicinski
Reviewed-by:
More advanced applications may want to only replace programs without
destroying associated maps. Allow libbpf users to achieve that.
Instead of always creating all of the maps at load time, expose to
users an API to reconstruct the map object from already existing
map.
The map parameters are
Currently the test only checks errors, not warnings, so save typing
and prefix the extack messages with "Error:" inside the check helper.
Signed-off-by: Jakub Kicinski
Reviewed-by: Quentin Monnet
---
tools/testing/selftests/bpf/test_offload.py | 8
1 file changed, 4 insertions(+), 4
Add a new macro for printing more informative message than straight
usage() when parameters are missing, and use it for prog do_load().
Save the object and pin path argument to variables for clarity.
Signed-off-by: Jakub Kicinski
Reviewed-by: Quentin Monnet
---
tools/bpf/bpftool/main.h | 15
Extend the bpftool prog load command to also accept "dev"
parameter, which will allow us to load programs onto devices.
Signed-off-by: Jakub Kicinski
Reviewed-by: Quentin Monnet
---
.../bpftool/Documentation/bpftool-prog.rst| 6 ++--
tools/bpf/bpftool/bash-completion/bpftool | 23
libbpf can guess program type based on ELF section names. As libbpf
becomes more popular its association between section name strings and
types becomes more of a standard. Allow libbpf users to use the same
logic for matching strings to types, e.g. when the string originates
from command line.
Trivial removal of duplicated "mode" in error message.
Signed-off-by: Jakub Kicinski
Reviewed-by: Quentin Monnet
---
tools/testing/selftests/bpf/test_offload.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/bpf/test_offload.py
Similarly to bpf_prog_load() users of bpf_object__open() may need
to specify the expected program type. Program type is needed at
open to avoid the kernel version check for program types which don't
require it.
Signed-off-by: Jakub Kicinski
Reviewed-by: Quentin Monnet
---
Hi!
This series starts with two minor clean ups to test_offload.py
selftest script.
The next 9 patches extend the abilities of bpftool prog load
beyond the simple cgroup use cases. Three new parameters are
added:
- type - allows specifying program type, independent of how
code
Sometimes program section names don't match with libbpf's expectation.
In particular XDP's default section names differ between libbpf and
iproute2. Allow users to pass program type on command line. Name
the types like the libbpf expected section names.
Signed-off-by: Jakub Kicinski
On Tue, 2018-07-03 at 16:01 -0700, Alexei Starovoitov wrote:
> On Tue, Jun 26, 2018 at 07:46:11PM -0700, Saeed Mahameed wrote:
> > The idea from this patch is to define a well known structure for
> > XDP meta
> > data fields format and offset placement inside the xdp data meta
> > buffer.
> >
> >
From: Wang Dongsheng
Date: Sun, 1 Jul 2018 23:15:46 -0700
> The m88e1121 LED default configuration does not apply m88e151x.
> So add a function to relpace m88e1121 LED configuration.
>
> Signed-off-by: Wang Dongsheng
Applid, thank you.
From: Petr Machata
Date: Mon, 02 Jul 2018 19:58:44 +0200
> This patchset adds two more tests where the mirror-to-gretap has a
> bridge in underlay packet path, without a VLAN above or below that
> bridge.
>
> In patch #1, a non-VLAN-filtering bridge is tested.
>
> In patch #2, a VLAN-filtering
On 07/03/2018 10:28 PM, Alexei Starovoitov wrote:
> On Sun, Jul 01, 2018 at 11:33:58AM -0500, Mauricio Vasquez wrote:
>> On 06/30/2018 06:20 PM, Daniel Borkmann wrote:
>>> On 06/29/2018 02:48 PM, Mauricio Vasquez B wrote:
Decrement the number of elements in the map in case the allocation
Make this function retrieve what it needs from the Tx ring being
addressed since it already relies on what had been saved on it before.
Also, since this function will be used by the upcoming Launchtime
patches rename it to better reflect its intention. Note that
Launchtime is not part of what
Split code into a separate function (igb_offload_apply()) that will be
used by ETF offload implementation.
Signed-off-by: Jesus Sanchez-Palencia
---
drivers/net/ethernet/intel/igb/igb_main.c | 23 ++-
1 file changed, 14 insertions(+), 9 deletions(-)
diff --git
Implement HW offload support for SO_TXTIME through igb's Launchtime
feature. This is done by extending igb_setup_tc() so it supports
TC_SETUP_QDISC_ETF and configuring i210 so time based transmit
arbitration is enabled.
The FQTSS transmission mode added before is extended so strict
priority (SP)
Currently the data transmission arbitration algorithm - DataTranARB
field on TQAVCTRL reg - is always set to CBS when the Tx mode is
changed from legacy to 'Qav' mode.
Make that configuration a bit more granular in preparation for the
upcoming Launchtime enabling patches, since CBS and Launchtime
Add infra so etf qdisc supports HW offload of time-based transmission.
For hw offload, the time sorted list is still used, so packets are
dequeued always in order of txtime.
Example:
$ tc qdisc replace dev enp2s0 parent root handle 100 mqprio num_tc 3 \
map 2 2 1 0 2 2 2 2 2 2 2 2 2
From: Vinicius Costa Gomes
The ETF (Earliest TxTime First) qdisc uses the information added
earlier in this series (the socket option SO_TXTIME and the new
role of sk_buff->tstamp) to schedule packets transmission based
on absolute time.
For some workloads, just bandwidth enforcement is not
From: Richard Cochran
For raw layer-2 packets, copy the desired future transmit time from
the CMSG cookie into the skb.
Signed-off-by: Richard Cochran
Signed-off-by: Jesus Sanchez-Palencia
---
net/packet/af_packet.c | 6 ++
1 file changed, 6 insertions(+)
diff --git
Use the socket error queue for reporting dropped packets if the
socket has enabled that feature through the SO_TXTIME API.
Packets are dropped either on enqueue() if they aren't accepted by the
qdisc or on dequeue() if the system misses their deadline. Those are
reported as different errors so
This is done in preparation for the upcoming time based transmission
patchset. Now that skb->tstamp will be used to hold packet's txtime,
we must ensure that it is being cleared when traversing namespaces.
Also, doing that from skb_scrub_packet() before the early return would
break our feature
Add a struct sockcm_cookie parameter to ip6_setup_cork() so
we can easily re-use the transmit_time field from struct inet_cork
for most paths, by copying the timestamp from the CMSG cookie.
This is later copied into the skb during __ip6_make_skb().
For the raw fast path, also pass the
Currently, skb_tx_timestamp() is being called before the Tx
descriptors are prepared in igb_xmit_frame_ring(), which happens
during either the igb_tso() or igb_tx_csum() calls.
Given that now the skb->tstamp might be used to carry the timestamp
for SO_TXTIME, we must only call skb_tx_timestamp()
From: Vinicius Costa Gomes
This adds 'qdisc_watchdog_init_clockid()' that allows a clockid to be
passed, this allows other time references to be used when scheduling
the Qdisc to run.
Signed-off-by: Vinicius Costa Gomes
---
include/net/pkt_sched.h | 2 ++
net/sched/sch_api.c | 11
Currently also the pause flags are removed from phydev->supported because
they're not included in PHY_DEFAULT_FEATURES. I don't think this is
intended, especially when considering that this function can be called
via phy_set_max_speed() anywhere in a driver. Change the masking to mask
out only the
On Sun, Jul 01, 2018 at 11:33:58AM -0500, Mauricio Vasquez wrote:
>
> On 06/30/2018 06:20 PM, Daniel Borkmann wrote:
> > On 06/29/2018 02:48 PM, Mauricio Vasquez B wrote:
> > > Decrement the number of elements in the map in case the allocation
> > > of a new node fails.
> > >
> > >
From: David Ahern
NetworkManager likes to manage linklocal prefix routes and does so with
the NLM_F_APPEND flag, breaking attempts to simplify the IPv6 route
code and by extension enable multipath routes with device only nexthops.
Revert f34436a43092 and these followup patches:
6eba08c3626b
From: Vinicius Costa Gomes
The "Earliest TxTime First" (ETF) queueing discipline allows precise
control of the transmission time of packets by providing a sorted
time-based scheduling of packets.
The syntax is:
tc qdisc add dev DEV parent NODE etf delta
clockid [offload]
This should come from the next uapi headers update.
Sending it now just as a convenience so anyone can build tc with etf
and taprio support.
Signed-off-by: Jesus Sanchez-Palencia
---
include/uapi/linux/pkt_sched.h | 21 +
1 file changed, 21 insertions(+)
diff --git
From: Richard Cochran
This patch introduces SO_TXTIME. User space enables this option in
order to pass a desired future transmit time in a CMSG when calling
sendmsg(2). The argument to this socket option is a 8-bytes long struct
provided by the uapi header net_tstamp.h defined as:
struct
Changes since v1:
- moved struct sock_txtime from socket.h to uapi net_tstamp.h;
- sk_clockid was changed from u16 to u8;
- sk_txtime_flags was changed from u16 to a u8 bit field in struct sock;
- the socket option flags are now validated in sock_setsockopt();
- added
Add a transmit_time field to struct inet_cork, then copy the
timestamp from the CMSG cookie at ip_setup_cork() so we can
safely copy it into the skb later during __ip_make_skb().
For the raw fast path, just perform the copy at raw_send_hdrinc().
Signed-off-by: Richard Cochran
Signed-off-by:
On Mon, 2018-07-02 at 10:01 +0200, Daniel Borkmann wrote:
> On 06/27/2018 07:55 PM, Saeed Mahameed wrote:
> > On Wed, 2018-06-27 at 16:15 +0200, Jesper Dangaard Brouer wrote:
> > > On Tue, 26 Jun 2018 19:46:11 -0700
> > > Saeed Mahameed wrote:
> > >
> > > > diff --git a/include/net/xdp.h
Hello,
I'm new to linux development and am working on creating a qdisc module,
similar to those under net/sched/sch_*.c. Currently I'm stuck on two
things.
1. What's the best way to set the maximum bit rate?
2. How do I determine the RTT for packets?
For (1) I'm currently tracking the number of
On 7/3/18 7:43 AM, Ido Schimmel wrote:
> On Mon, Jul 02, 2018 at 03:03:12PM -0700, dsah...@kernel.org wrote:
>> From: David Ahern
>>
>> NetworkManager likes to manage linklocal prefix routes and does so with
>> the NLM_F_APPEND flag, breaking attempts to simplify the IPv6 route
>> code and by
From: Daniel Borkmann
Date: Tue, 3 Jul 2018 23:18:13 +0200
> The following pull-request contains BPF updates for your *net-next* tree.
>
> The main changes are:
...
> Please consider pulling these changes from:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git
Pulled,
On Mon, Jul 02, 2018 at 03:03:12PM -0700, dsah...@kernel.org wrote:
> From: David Ahern
>
> NetworkManager likes to manage linklocal prefix routes and does so with
> the NLM_F_APPEND flag, breaking attempts to simplify the IPv6 route
> code and by extension enable multipath routes with device
From: Igor Russkikh
Date: Mon, 2 Jul 2018 17:03:34 +0300
> In this patchset Anton Mikaev and I added some useful ethtool operations:
> - ring size changes
> - link renegotioation
> - flow control management
>
> The patch also improves init/deinit sequence.
>
> V3 changes:
> - After review and
From: Heiner Kallweit
Date: Mon, 2 Jul 2018 22:49:35 +0200
> Network core refuses to change mac address because flag
> IFF_LIVE_ADDR_CHANGE isn't set. Set this missing flag.
>
> Fixes: 1f7aa2bc268e ("r8169: simplify rtl_set_mac_address")
> Reported-by: Corinna Vinschen
> Signed-off-by: Heiner
In certain conditions, the device may not be able to link in gigabit mode. This
software workaround ensures that the device will not enter the failure state.
Fixes: d0cad871703b898a442e4049c532ec39168e5b57 ("SMSC75XX USB 2.0 Gigabit
Ethernet Devices")
Signed-off-by: Yuiko Oshino
---
On 06/30/2018 04:50 PM, David Miller wrote:
From: Ka-Cheong Poon
Date: Wed, 27 Jun 2018 03:23:27 -0700
This patch changes the internal representation of an IP address to use
struct in6_addr. IPv4 address is stored as an IPv4 mapped address.
All the functions which take an IP address as
On 06/30/2018 03:51 PM, John Fastabend wrote:
> The current code, in the error path of sock_hash_ctx_update_elem,
> checks if the sock has a psock in the user data and if so decrements
> the reference count of the psock. However, if the error happens early
> in the error path we may have never
On Mon, Jul 2, 2018 at 7:49 PM Yuchung Cheng wrote:
>
> On Mon, Jul 2, 2018 at 2:39 PM, Lawrence Brakmo wrote:
> >
> > DCTCP depends on the CA_EVENT_NON_DELAYED_ACK and CA_EVENT_DELAYED_ACK
> > notifications to keep track if it needs to send an ACK for packets that
> > were received with a
rhashtable_free_and_destroy() cancels re-hash deferred work
then walks and destroys elements. at this moment, some elements can be
still in future_tbl. that elements are not destroyed.
test case:
nft_rhash_destroy() calls rhashtable_free_and_destroy() to destroy
all elements of sets before
From: Rishabh Bhatnagar
Date: Mon, 2 Jul 2018 09:35:34 -0700
> In file lib/rhashtable.c line 777, skip variable is assigned to
> itself. The following error was observed:
>
> lib/rhashtable.c:777:41: warning: explicitly assigning value of
> variable of type 'int' to itself [-Wself-assign]
On 7/2/18, 5:52 PM, "netdev-ow...@vger.kernel.org on behalf of Neal Cardwell"
wrote:
On Mon, Jul 2, 2018 at 5:39 PM Lawrence Brakmo wrote:
>
> When have observed high tail latencies when using DCTCP for RPCs as
> compared to using Cubic. For example, in one setup there are 2
'keys_ex' is malloced by tcf_pedit_keys_ex_parse() in tcf_pedit_init()
but not all of the error handle path free it, this may cause memory
leak. This patch fix it.
Fixes: 71d0ed7079df ("net/act_pedit: Support using offset relative to the
conventional network headers")
Signed-off-by: Wei Yongjun
On 7/2/18, 4:50 PM, "Yuchung Cheng" wrote:
On Mon, Jul 2, 2018 at 2:39 PM, Lawrence Brakmo wrote:
>
> DCTCP depends on the CA_EVENT_NON_DELAYED_ACK and CA_EVENT_DELAYED_ACK
> notifications to keep track if it needs to send an ACK for packets that
> were received with a
On 07/02/2018 02:31 PM, Heiner Kallweit wrote:
> On 02.07.2018 23:20, Andrew Lunn wrote:
>> On Mon, Jul 02, 2018 at 09:37:08PM +0200, Heiner Kallweit wrote:
>>> Change rtl_speed_down() to use phylib.
>>>
>>> Signed-off-by: Heiner Kallweit
>>> ---
>>> drivers/net/ethernet/realtek/r8169.c | 33
On 07/02/2018 02:15 PM, Heiner Kallweit wrote:
> On 02.07.2018 23:02, Andrew Lunn wrote:
>>> +static int r8169_mdio_read_reg(struct mii_bus *mii_bus, int phyaddr, int
>>> phyreg)
>>> +{
>>> + struct rtl8169_private *tp = mii_bus->priv;
>>> +
>>> + return rtl_readphy(tp, phyreg);
>>
>> So
On 07/02/2018 02:24 PM, Heiner Kallweit wrote:
> On 02.07.2018 23:06, Andrew Lunn wrote:
>>> static void r8168_pll_power_down(struct rtl8169_private *tp)
>>> {
>>> if (r8168_check_dash(tp))
>>> @@ -4510,7 +4469,8 @@ static void r8168_pll_power_down(struct
>>> rtl8169_private *tp)
>>>
On Tue, Jul 3, 2018 at 11:10 AM Lawrence Brakmo wrote:
>
> On 7/2/18, 5:52 PM, "netdev-ow...@vger.kernel.org on behalf of Neal Cardwell"
> wrote:
>
> On Mon, Jul 2, 2018 at 5:39 PM Lawrence Brakmo wrote:
> >
> > When have observed high tail latencies when using DCTCP for RPCs as
>
On 7/3/18, 6:15 AM, "Neal Cardwell" wrote:
On Mon, Jul 2, 2018 at 7:49 PM Yuchung Cheng wrote:
>
> On Mon, Jul 2, 2018 at 2:39 PM, Lawrence Brakmo wrote:
> >
> > DCTCP depends on the CA_EVENT_NON_DELAYED_ACK and CA_EVENT_DELAYED_ACK
> > notifications to keep track if it
On Tue, Jun 12, 2018 at 8:18 AM, Alexander Duyck
wrote:
> This patch series is meant to allow support for the L2 forward offload, aka
> MACVLAN offload without the need for using ndo_select_queue.
>
> The existing solution currently requires that we use ndo_select_queue in
> the transmit path if
When have observed high tail latencies when using DCTCP for RPCs as
compared to using Cubic. For example, in one setup there are 2 hosts
sending to a 3rd one, with each sender having 3 flows (1 stream,
1 1MB back-to-back RPCs and 1 10KB back-to-back RPCs). The following
table shows the 99% and
We observed high 99 and 99.9% latencies when doing RPCs with DCTCP. The
problem is triggered when the last packet of a request arrives CE
marked. The reply will carry the ECE mark causing TCP to shrink its cwnd
to 1 (because there are no packets in flight). When the 1st packet of
the next request
DCTCP depends on the CA_EVENT_NON_DELAYED_ACK and CA_EVENT_DELAYED_ACK
notifications to keep track if it needs to send an ACK for packets that
were received with a particular ECN state but whose ACK was delayed.
Under some circumstances, for example when a delayed ACK is sent with a
data packet,
On 7/3/18 5:36 AM, Xin Long wrote:
> On Mon, Jul 2, 2018 at 11:12 PM, David Ahern wrote:
>> On 7/2/18 12:30 AM, Xin Long wrote:
>>> +ping_ipv4()
>>> +{
>>> + sysctl_set net.ipv4.icmp_echo_ignore_broadcasts 0
>>> + bc_forwarding_disable
>>> + ping_test $h1 198.51.100.255
>>> +
>>> +
On 03.07.2018 18:42, Florian Fainelli wrote:
>
>
> On 07/02/2018 02:15 PM, Heiner Kallweit wrote:
>> On 02.07.2018 23:02, Andrew Lunn wrote:
+static int r8169_mdio_read_reg(struct mii_bus *mii_bus, int phyaddr, int
phyreg)
+{
+ struct rtl8169_private *tp = mii_bus->priv;
On 03.07.2018 18:44, Florian Fainelli wrote:
>
>
> On 07/02/2018 02:24 PM, Heiner Kallweit wrote:
>> On 02.07.2018 23:06, Andrew Lunn wrote:
static void r8168_pll_power_down(struct rtl8169_private *tp)
{
if (r8168_check_dash(tp))
@@ -4510,7 +4469,8 @@ static void
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