Introduce a set of helpers to make it easy to add support for qevents into
qdisc.
The idea behind this is that qevent types will be generally reused between
qdiscs, rather than each having a completely idiosyncratic set of qevents.
The qevent module holds functions for parsing, dumping and formatting of
these common qevent types, and for dispatch to the appropriate set of
handlers based on the qevent name.
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
Current police action must set 'rate' and 'burst'. 'mtu' parameter
set the max frame size and could be set alone without 'rate' and 'burst'
in some situation. Offloading to hardware for example, 'mtu' could limit
the flow max frame size.
Signed-off-by: Po Liu <po.liu@nxp.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
Change the double quotes to single quotes in fprintf message to make it
more readable.
Signed-off-by: Po Liu <po.liu@nxp.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
Following inclusion in net-next, extend rtnl_rtprot_tab and rt_protos
to support Keepalived.
Signed-off-by: Alexandre Cassen <acassen@gmail.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
Parav Pandit says:
====================
Currently ip link set dev <pfndev> vf <vf_num> <param> <value> has
few below limitations.
1. Command is limited to set VF parameters only.
It cannot set the default MAC address for the PCI PF.
2. It can be set only on system where PCI SR-IOV is supported.
In smartnic based system, eswitch of a NIC resides on a different
embedded cpu which has the VF and PF representors for the SR-IOV
support on a host system in which this smartnic is plugged-in.
3. It cannot setup the function attributes of sub-function described
in detail in comprehensive RFC [1] and [2].
This series covers the first small part to let user query and set MAC
address (hardware address) of a PCI PF/VF which is represented by
devlink port.
[1] https://lore.kernel.org/netdev/20200519092258.GF4655@nanopsycho/
[2] https://marc.info/?l=linux-netdev&m=158555928517777&w=2
====================
Signed-off-by: David Ahern <dsahern@kernel.org>
Support setting devlink port function hardware address.
Example of a PCI VF port which supports a port function:
Set hardware address of the VF's port function.
$ devlink port show pci/0000:06:00.0/2
pci/0000:06:00.0/2: type eth netdev enp6s0pf0vf1 flavour pcivf pfnum 0 vfnum 1
function:
hw_addr 00:00:00:00:00:00
$ devlink port function set pci/0000:06:00.0/2 hw_addr 00:11:22:33:44:55
$ devlink port show pci/0000:06:00.0/2
pci/0000:06:00.0/2: type eth netdev enp6s0pf0vf1 flavour pcivf pfnum 0 vfnum 1
function:
hw_addr 00:11:22:33:44:55
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
Add support to query the hardware address of function represented
by devlink port function.
Example of a PCI VF port which supports a port function:
$ devlink port show pci/0000:06:00.0/2
pci/0000:06:00.0/2: type eth netdev enp6s0pf0vf1 flavour pcivf pfnum 0 vfnum 1
function:
hw_addr 00:11:22:33:44:66
$ devlink port show pci/0000:06:00.0/2 -jp
{
"port": {
"pci/0000:06:00.0/2": {
"type": "eth",
"netdev": "enp6s0pf0vf1",
"flavour": "pcivf",
"pfnum": 0,
"vfnum": 1,
"function": {
"hw_addr": "00:11:22:33:44:66"
}
}
}
}
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
To reuse print routines for port function in subsequent patch, move
print routine specific to devlink device at start of the file.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
This patch adds support to assign a nexthop group
id to an fdb entry.
$bridge fdb add 02:02:00:00:00:13 dev vx10 nhid 102 self
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
This patch adds support to add and delete
ecmp nexthops of type fdb. Such nexthops can
be linked to vxlan fdb entries.
$ip nexthop add id 12 via 172.16.1.2 fdb
$ip nexthop add id 13 via 172.16.1.3 fdb
$ip nexthop add id 102 group 12/13 fdb
$bridge fdb add 02:02:00:00:00:13 dev vx10 nhid 102 self
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
Actually display that deletions are happening
when monitoring nexthops.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
optimistic DAD is controllable via sysctl for an interface
or all interfaces on the system. This would affect addresses
added by the kernel only.
Recent kernels, however, have enabled support for adding optimistic
address via userspace. This plumbs that support.
Signed-off-by: David Ahern <dsahern@gmail.com>
This creates a nice systematic way to check that the various flags are
mutable from userspace and that the address family is valid.
Mutability properties are preserved to avoid introducing any behavioral
change in this CL. However, previously, immutable flags were ignored and
fell through to this confusing error:
Error: either "local" is duplicate, or "dadfailed" is a garbage.
But now, they just warn more explicitly:
Warning: dadfailed option is not mutable from userspace
Signed-off-by: David Ahern <dsahern@gmail.com>
Have print_tm() dump firstuse value along with install, lastuse
and expires.
v2: Resubmit after 'master' merged into next
Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
gcc v9.3.1 reports:
bpf.c: In function ‘bpf_get_work_dir’:
bpf.c:784:49: warning: ‘snprintf’ output may be truncated before the last format character [-Wformat-truncation=]
784 | snprintf(bpf_wrk_dir, sizeof(bpf_wrk_dir), "%s/", mnt);
| ^
bpf.c:784:2: note: ‘snprintf’ output between 2 and 4097 bytes into a destination of size 4096
784 | snprintf(bpf_wrk_dir, sizeof(bpf_wrk_dir), "%s/", mnt);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Fix this simply checking snprintf return code and properly handling the error.
Fixes: e42256699c ("bpf: make tc's bpf loader generic and move into lib")
Signed-off-by: Andrea Claudi <aclaudi@redhat.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
This reverts commit c0325b0638.
It introduces a segfault in bpf_make_custom_path() when custom pinning is used.
This happens because asprintf allocates exactly the space needed to hold a
string in the buffer passed as its first argument, but if this buffer is later
used in strcat() or similar we have a buffer overrun.
As the aim of commit c0325b0638 is simply to fix a compiler warning, it
seems safe and reasonable to revert it.
Fixes: c0325b0638 ("bpf: replace snprintf with asprintf when dealing with long buffers")
Reported-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Andrea Claudi <aclaudi@redhat.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
This commit allows printing the statistics of a broadcast-receiver link
using the same tipc command, but with additional 'link' options:
$ tipc link stat show --help
Usage: tipc link stat show [ link { LINK | SUBSTRING | all } ]
With:
+ 'LINK' : print the stats of the specific link 'LINK';
+ 'SUBSTRING' : print the stats of all the links having the 'SUBSTRING'
in name;
+ 'all' : print all the links' stats incl. the broadcast-receiver
ones;
Also, a link stats can be reset in the usual way by specifying the link
name in command.
For example:
$ tipc l st sh l br
Link <broadcast-link>
Window:50 packets
RX packets:0 fragments:0/0 bundles:0/0
TX packets:5011125 fragments:4968774/149643 bundles:38402/307061
RX naks:781484 defs:0 dups:0
TX naks:0 acks:0 retrans:330259
Congestion link:50657 Send queue max:0 avg:0
Link <broadcast-link:1001001>
Window:50 packets
RX packets:95146 fragments:95040/1980 bundles:1/2
TX packets:0 fragments:0/0 bundles:0/0
RX naks:380938 defs:83962 dups:403
TX naks:8362 acks:0 retrans:170662
Congestion link:0 Send queue max:0 avg:0
Link <broadcast-link:1001002>
Window:50 packets
RX packets:0 fragments:0/0 bundles:0/0
TX packets:0 fragments:0/0 bundles:0/0
RX naks:400546 defs:0 dups:0
TX naks:0 acks:0 retrans:159597
Congestion link:0 Send queue max:0 avg:0
$ tipc l st sh l 1001002
Link <1001003:data0-1001002:data0>
ACTIVE MTU:1500 Priority:10 Tolerance:1500 ms Window:50 packets
RX packets:99546 fragments:0/0 bundles:33/877
TX packets:629 fragments:0/0 bundles:35/828
TX profile sample:8 packets average:390 octets
0-64:75% -256:0% -1024:0% -4096:25% -16384:0% -32768:0% -66000:0%
RX states:488714 probes:7397 naks:0 defs:4 dups:5
TX states:27734 probes:18016 naks:5 acks:2305 retrans:0
Congestion link:0 Send queue max:0 avg:0
Link <broadcast-link:1001002>
Window:50 packets
RX packets:0 fragments:0/0 bundles:0/0
TX packets:0 fragments:0/0 bundles:0/0
RX naks:400546 defs:0 dups:0
TX naks:0 acks:0 retrans:159597
Congestion link:0 Send queue max:0 avg:0
$ tipc l st re l broadcast-link:1001002
$ tipc l st sh l broadcast-link:1001002
Link <broadcast-link:1001002>
Window:50 packets
RX packets:0 fragments:0/0 bundles:0/0
TX packets:0 fragments:0/0 bundles:0/0
RX naks:0 defs:0 dups:0
TX naks:0 acks:0 retrans:0
Congestion link:0 Send queue max:0 avg:0
Acked-by: Ying Xue <ying.xue@windriver.com>
Acked-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: Tuong Lien <tuong.t.lien@dektech.com.au>
Signed-off-by: David Ahern <dsahern@gmail.com>
This patch adds support for rpl segment routing settings.
Example:
ip -n ns0 -6 route add 2001::3 encap rpl segs \
fe80::c8fe:beef:cafe:cafe,fe80::c8fe:beef:cafe:beef dev lowpan0
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
Report tcf_t values in seconds, not jiffies, in JSON format as it is now
for stdout.
v2: use PRINT_ANY, drop the useless casts and fix the style (Stephen Hemminger)
Fixes: 2704bd6255 ("tc: jsonify actions core")
Cc: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Provide a sanity check that will make sure whether queues count/offset
pair count will not exceed the actual number of TCs being created.
Example command that is invalid because there are 4 count/offset pairs
whereas num_tc is only 2.
# tc qdisc add dev enp96s0f0 root mqprio num_tc 2 map 0 0 0 0 1 1 1 1
queues 4@0 4@4 4@8 4@12 hw 1 mode channel
Store the parsed count/offset pair count onto a dedicated variable that
will be compared against opt.num_tc after all of the command line
arguments were parsed. Bail out if this count is higher than opt.num_tc
and let user know about it.
Drivers were swallowing such commands as they were iterating over
count/offset pairs where num_tc was used as a delimiter, so this is not
a big deal, but better catch such misconfiguration at the command line
argument parsing level.
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
As noted by David Ahern, now if some bytecode filter is not supported
by running kernel printed error message is not clear. This patch is attempt to
detect such case and print correct message. This is done by providing checking
function for new filter types. As example check function for cgroup filter
is implemented. It sends correct lightweight request (idiag_states = 0)
with zero cgroup condition to the kernel and checks returned errno. If filter
is not supported EINVAL is returned. Result of checking is cached to
avoid extra checks if several same filters are specified.
Signed-off-by: Dmitry Yakunin <zeil@yandex-team.ru>
Signed-off-by: David Ahern <dsahern@gmail.com>
This patch introduces two new features: obtaining cgroup information and
filtering sockets by cgroups. These features work based on cgroup v2 ID
field in the socket (kernel should be compiled with CONFIG_SOCK_CGROUP_DATA).
Cgroup information can be obtained by specifying --cgroup flag and now contains
only pathname. For faster pathname lookups cgroup cache is implemented. This
cache is filled on ss startup and missed entries are resolved and saved
on the fly.
Cgroup filter extends EXPRESSION and allows to specify cgroup pathname
(relative or absolute) to obtain sockets attached only to this cgroup.
Filter syntax: ss [ cgroup PATHNAME ]
Examples:
ss -a cgroup /sys/fs/cgroup/unified (or ss -a cgroup .)
ss -a cgroup /sys/fs/cgroup/unified/cgroup1 (or ss -a cgroup cgroup1)
v2:
- style fixes (David Ahern)
Signed-off-by: Dmitry Yakunin <zeil@yandex-team.ru>
Signed-off-by: David Ahern <dsahern@gmail.com>
This patch prepares infrastructure for matching sockets by cgroups.
Two helper functions are added for transformation between cgroup v2 ID
and pathname. Cgroup v2 cache is implemented as hash table indexed by ID.
This cache is needed for faster lookups of socket cgroup.
v2:
- style fixes (David Ahern)
Signed-off-by: Dmitry Yakunin <zeil@yandex-team.ru>
Signed-off-by: David Ahern <dsahern@gmail.com>
Introduce a ingress frame gate control flow action.
Tc gate action does the work like this:
Assume there is a gate allow specified ingress frames can pass at
specific time slot, and also drop at specific time slot. Tc filter
chooses the ingress frames, and tc gate action would specify what slot
does these frames can be passed to device and what time slot would be
dropped.
Tc gate action would provide an entry list to tell how much time gate
keep open and how much time gate keep state close. Gate action also
assign a start time to tell when the entry list start. Then driver would
repeat the gate entry list cyclically.
For the software simulation, gate action require the user assign a time
clock type.
Below is the setting example in user space. Tc filter a stream source ip
address is 192.168.0.20 and gate action own two time slots. One is last
200ms gate open let frame pass another is last 100ms gate close let
frames dropped.
# tc qdisc add dev eth0 ingress
# tc filter add dev eth0 parent ffff: protocol ip \
flower src_ip 192.168.0.20 \
action gate index 2 clockid CLOCK_TAI \
sched-entry open 200000000ns -1 8000000b \
sched-entry close 100000000ns
# tc chain del dev eth0 ingress chain 0
"sched-entry" follow the name taprio style. Gate state is
"open"/"close". Follow the period nanosecond. Then next -1 is internal
priority value means which ingress queue should put to. "-1" means
wildcard. The last value optional specifies the maximum number of
MSDU octets that are permitted to pass the gate during the specified
time interval, the overlimit frames would be dropped.
Below example shows filtering a stream with destination mac address is
10:00:80:00:00:00 and ip type is ICMP, follow the action gate. The gate
action would run with one close time slot which means always keep close.
The time cycle is total 200000000ns. The base-time would calculate by:
1357000000000 + (N + 1) * cycletime
When the total value is the future time, it will be the start time.
The cycletime here would be 200000000ns for this case.
#tc filter add dev eth0 parent ffff: protocol ip \
flower skip_hw ip_proto icmp dst_mac 10:00:80:00:00:00 \
action gate index 12 base-time 1357000000000ns \
sched-entry CLOSE 200000000ns \
clockid CLOCK_TAI
Signed-off-by: Po Liu <Po.Liu@nxp.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
My latest patch missed the fact that this file got JSON support.
Also fixes a spelling error added during JSON change.
Fixes: be9ca9d541 ("tc: fq: add timer_slack parameter")
Fixes: d15e2bfc04 ("tc: fq: add support for JSON output")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Display kilobit with the standard suffix.
Add comment to describe where data rate suffixes come from.
Add support for terrabit.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Make ID argument optional and read the snapshot info
that kernel sends us.
$ devlink region new netdevsim/netdevsim1/dummy
netdevsim/netdevsim1/dummy: snapshot 0
$ devlink -jp region new netdevsim/netdevsim1/dummy
{
"regions": {
"netdevsim/netdevsim1/dummy": {
"snapshot": [ 1 ]
}
}
}
$ devlink region show netdevsim/netdevsim1/dummy
netdevsim/netdevsim1/dummy: size 32768 snapshot [0 1]
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
Also use 'g' specifier instead of 'f' to remove trailing zeros,
and increase precision.
Examples of output :
Before After
8.0Kbps 8Kbps
9.9Mbps 9.92Mbps
55001Mbps 55Gbps
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Import rpl.h and rpl_iptunnel.h as of kernel commit:
354d86141796 ("Merge branch 'net-reduce-dynamic-lockdep-keys'")
Signed-off-by: David Ahern <dsahern@gmail.com>
When outputting in normal mode, forward the return value from
color_fprintf().
Signed-off-by: Benjamin Poirier <bpoirier@cumulusnetworks.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Consider this configuration:
ip link add br0 type bridge
ip link add vx0 type vxlan dstport 4789 external
ip link set dev vx0 master br0
bridge vlan del vid 1 dev vx0
ip link add vx1 type vxlan dstport 4790 external
ip link set dev vx1 master br0
root@vsid:/src/iproute2# ./bridge/bridge vlan
port vlan-id
br0 1 PVID Egress Untagged
vx0 None
vx1 1 PVID Egress Untagged
root@vsid:/src/iproute2#
Note the useless and inconsistent empty lines.
root@vsid:/src/iproute2# ./bridge/bridge vlan tunnelshow
port vlan-id tunnel-id
br0
vx0 None
vx1
What's the difference between "None" and ""?
root@vsid:/src/iproute2# ./bridge/bridge -j -p vlan tunnelshow
[ {
"ifname": "br0",
"tunnels": [ ]
},{
"ifname": "vx1",
"tunnels": [ ]
} ]
Why does vx0 appear in normal output and not json output?
Why output an empty list for br0 and vx1?
Fix these inconsistencies and avoid outputting entries with no values. This
makes the behavior consistent with other iproute2 commands, for example
`ip -6 addr`: if an interface doesn't have any ipv6 addresses, it is not
part of the listing.
Fixes: 8652eeb3ab ("bridge: vlan: support for per vlan tunnel info")
Signed-off-by: Benjamin Poirier <bpoirier@cumulusnetworks.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Fixes: 7abf5de677 ("bridge: vlan: add support to display per-vlan statistics")
Signed-off-by: Benjamin Poirier <bpoirier@cumulusnetworks.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Fix singular vs plural. Add a hyphen to clarify that each of those are
single fields.
Signed-off-by: Benjamin Poirier <bpoirier@cumulusnetworks.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
