Commit Graph

875104 Commits

Author SHA1 Message Date
Yangbo Lu
400928bf92 net: mscc: ocelot: convert to use ocelot_port_add_txtstamp_skb()
Convert to use ocelot_port_add_txtstamp_skb() for adding skbs which
require TX timestamp into list. Export it so that DSA Felix driver
could reuse it too.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-21 14:39:02 -08:00
Yangbo Lu
e23a7b3e8d net: mscc: ocelot: convert to use ocelot_get_txtstamp()
The method getting TX timestamp by reading timestamp FIFO and
matching skbs list is common for DSA Felix driver too.
So move code out of ocelot_board.c, convert to use
ocelot_get_txtstamp() function and export it.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-21 14:39:02 -08:00
Yangbo Lu
f145922ddc net: mscc: ocelot: export ocelot_hwstamp_get/set functions
Export ocelot_hwstamp_get/set functions so that DSA driver
is able to reuse them.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-21 14:39:02 -08:00
John Fastabend
8163999db4 bpf: skmsg, fix potential psock NULL pointer dereference
Report from Dan Carpenter,

 net/core/skmsg.c:792 sk_psock_write_space()
 error: we previously assumed 'psock' could be null (see line 790)

 net/core/skmsg.c
   789 psock = sk_psock(sk);
   790 if (likely(psock && sk_psock_test_state(psock, SK_PSOCK_TX_ENABLED)))
 Check for NULL
   791 schedule_work(&psock->work);
   792 write_space = psock->saved_write_space;
                     ^^^^^^^^^^^^^^^^^^^^^^^^
   793          rcu_read_unlock();
   794          write_space(sk);

Ensure psock dereference on line 792 only occurs if psock is not null.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: 604326b41a ("bpf, sockmap: convert to generic sk_msg interface")
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-21 13:43:45 -08:00
Jiri Olsa
7599a896f2 audit: Move audit_log_task declaration under CONFIG_AUDITSYSCALL
The 0-DAY found that audit_log_task is not declared under
CONFIG_AUDITSYSCALL which causes compilation error when
it is not defined:

    kernel/bpf/syscall.o: In function `bpf_audit_prog.isra.30':
 >> syscall.c:(.text+0x860): undefined reference to `audit_log_task'

Adding the audit_log_task declaration and stub within
CONFIG_AUDITSYSCALL ifdef.

Fixes: 91e6015b08 ("bpf: Emit audit messages upon successful prog load and unload")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-21 12:14:49 -08:00
Krzysztof Kozlowski
43da14110c net: Fix Kconfig indentation, continued
Adjust indentation from spaces to tab (+optional two spaces) as in
coding style.  This fixes various indentation mixups (seven spaces,
tab+one space, etc).

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-21 12:00:21 -08:00
Krzysztof Kozlowski
5421cf84af drivers: net: Fix Kconfig indentation, continued
Adjust indentation from spaces to tab (+optional two spaces) as in
coding style.  This fixes various indentation mixups (seven spaces,
tab+one space, etc).

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-21 11:54:09 -08:00
Xin Long
1841b98299 lwtunnel: check erspan options before allocating tun_info
As Jakub suggested on another patch, it's better to do the check
on erspan options before allocating memory.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-21 11:47:39 -08:00
Xin Long
7b6a70f737 lwtunnel: be STRICT to validate the new LWTUNNEL_IP(6)_OPTS
LWTUNNEL_IP(6)_OPTS are the new items in ip(6)_tun_policy, which
are parsed by nla_parse_nested_deprecated(). We should check it
strictly by setting .strict_start_type = LWTUNNEL_IP(6)_OPTS.

This patch also adds missing LWTUNNEL_IP6_OPTS in ip6_tun_policy.

Fixes: 4ece477870 ("lwtunnel: add options setting and dumping for geneve")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-21 11:47:23 -08:00
Xin Long
f3bed7f8f9 net: remove the unnecessary strict_start_type in some policies
ct_policy and mpls_policy are parsed with nla_parse_nested(), which
does NL_VALIDATE_STRICT validation, strict_start_type is not needed
to set as it is actually trying to make some attributes parsed with
NL_VALIDATE_STRICT.

This patch is to remove it, and do the same on rtm_nh_policy which
is parsed by nlmsg_parse().

Suggested-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-21 11:46:18 -08:00
David S. Miller
ff998a80c3 Merge branch 'net-sched-support-vxlan-and-erspan-options'
Xin Long says:

====================
net: sched: support vxlan and erspan options

This patchset is to add vxlan and erspan options support in
cls_flower and act_tunnel_key. The form is pretty much like
geneve_opts in:

  https://patchwork.ozlabs.org/patch/935272/
  https://patchwork.ozlabs.org/patch/954564/

but only one option is allowed for vxlan and erspan.

v1->v2:
  - see each patch changelog.
====================

Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-21 11:44:06 -08:00
Xin Long
79b1011cb3 net: sched: allow flower to match erspan options
This patch is to allow matching options in erspan.

The options can be described in the form:
VER:INDEX:DIR:HWID/VER:INDEX_MASK:DIR_MASK:HWID_MASK.
When ver is set to 1, index will be applied while dir
and hwid will be ignored, and when ver is set to 2,
dir and hwid will be used while index will be ignored.

Different from geneve, only one option can be set. And
also, geneve options, vxlan options or erspan options
can't be set at the same time.

  # ip link add name erspan1 type erspan external
  # tc qdisc add dev erspan1 ingress
  # tc filter add dev erspan1 protocol ip parent ffff: \
      flower \
        enc_src_ip 10.0.99.192 \
        enc_dst_ip 10.0.99.193 \
        enc_key_id 11 \
        erspan_opts 1:12:0:0/1:ffff:0:0 \
        ip_proto udp \
        action mirred egress redirect dev eth0

v1->v2:
  - improve some err msgs of extack.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-21 11:44:06 -08:00
Xin Long
d8f9dfae49 net: sched: allow flower to match vxlan options
This patch is to allow matching gbp option in vxlan.

The options can be described in the form GBP/GBP_MASK,
where GBP is represented as a 32bit hexadecimal value.
Different from geneve, only one option can be set. And
also, geneve options and vxlan options can't be set at
the same time.

  # ip link add name vxlan0 type vxlan dstport 0 external
  # tc qdisc add dev vxlan0 ingress
  # tc filter add dev vxlan0 protocol ip parent ffff: \
      flower \
        enc_src_ip 10.0.99.192 \
        enc_dst_ip 10.0.99.193 \
        enc_key_id 11 \
        vxlan_opts 01020304/ffffffff \
        ip_proto udp \
        action mirred egress redirect dev eth0

v1->v2:
  - add .strict_start_type for enc_opts_policy as Jakub noticed.
  - use Duplicate instead of Wrong in err msg for extack as Jakub
    suggested.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-21 11:44:06 -08:00
Xin Long
e20d4ff2ac net: sched: add erspan option support to act_tunnel_key
This patch is to allow setting erspan options using the
act_tunnel_key action. Different from geneve options,
only one option can be set. And also, geneve options,
vxlan options or erspan options can't be set at the
same time.

Options are expressed as ver:index:dir:hwid, when ver
is set to 1, index will be applied while dir and hwid
will be ignored, and when ver is set to 2, dir and
hwid will be used while index will be ignored.

  # ip link add name erspan1 type erspan external
  # tc qdisc add dev eth0 ingress
  # tc filter add dev eth0 protocol ip parent ffff: \
           flower indev eth0 \
              ip_proto udp \
              action tunnel_key \
                  set src_ip 10.0.99.192 \
                  dst_ip 10.0.99.193 \
                  dst_port 6081 \
                  id 11 \
  		erspan_opts 1:2:0:0 \
          action mirred egress redirect dev erspan1

v1->v2:
  - do the validation when dst is not yet allocated as Jakub suggested.
  - use Duplicate instead of Wrong in err msg for extack.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-21 11:44:06 -08:00
Xin Long
fca3f91cc3 net: sched: add vxlan option support to act_tunnel_key
This patch is to allow setting vxlan options using the
act_tunnel_key action. Different from geneve options,
only one option can be set. And also, geneve options
and vxlan options can't be set at the same time.

gbp is the only param for vxlan options:

  # ip link add name vxlan0 type vxlan dstport 0 external
  # tc qdisc add dev eth0 ingress
  # tc filter add dev eth0 protocol ip parent ffff: \
           flower indev eth0 \
              ip_proto udp \
              action tunnel_key \
                  set src_ip 10.0.99.192 \
                  dst_ip 10.0.99.193 \
                  dst_port 6081 \
                  id 11 \
  		  vxlan_opts 01020304 \
          action mirred egress redirect dev vxlan0

v1->v2:
  - add .strict_start_type for enc_opts_policy as Jakub noticed.
  - use Duplicate instead of Wrong in err msg for extack as Jakub
    suggested.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-21 11:44:06 -08:00
Dan Carpenter
0617aa988d octeontx2-af: Fix uninitialized variable in debugfs
If rvu_get_blkaddr() fails, then this rvu_cgx_nix_cuml_stats() returns
zero and we write some uninitialized data into the debugfs output.

On the error paths, the use of the uninitialized "*stat" is harmless,
but it will lead to a Smatch warning (static analysis) and a UBSan
warning (runtime analysis) so we should prevent that as well.

Fixes: f967488d09 ("octeontx2-af: Add per CGX port level NIX Rx/Tx counters")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-21 11:42:19 -08:00
Stefano Garzarella
039fcccaed vsock: avoid to assign transport if its initialization fails
If transport->init() fails, we can't assign the transport to the
socket, because it's not initialized correctly, and any future
calls to the transport callbacks would have an unexpected behavior.

Fixes: c0cfa2d8a7 ("vsock: add multi-transports support")
Reported-and-tested-by: syzbot+e2e5c07bf353b2f79daa@syzkaller.appspotmail.com
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Jorgen Hansen <jhansen@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-21 11:37:16 -08:00
Russell King
f3c9a666b2 net: sfp: soft status and control support
Add support for the soft status and control register, which allows
TX_FAULT and RX_LOS to be monitored and TX_DISABLE to be set.  We
make use of this when the board does not support GPIOs for these
signals.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 22:29:40 -08:00
David S. Miller
9ce33351bd Merge branch 'sfp-quirks'
Russell King says:

====================
Add rudimentary SFP module quirk support

The SFP module EEPROM describes the capabilities of the module, but
doesn't describe the host interface.  We have a certain amount of
guess-work to work out how to configure the host - which works most
of the time.

However, there are some (such as GPON) modules which are able to
support different host interfaces, such as 1000BASE-X and 2500BASE-X.
The module will switch between each mode until it achieves link with
the host.

There is no defined way to describe this in the SFP EEPROM, so we can
only recognise the module and handle it appropriately.  This series
adds the necessary recognition of the modules using a quirk system,
and tweaks the support mask to allow them to link with the host at
2500BASE-X, thereby allowing the user to achieve full line rate.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 22:28:53 -08:00
Russell King
b0eae33b25 net: sfp: add some quirks for GPON modules
Marc Micalizzi reports that Huawei MA5671A and Alcatel/Lucent G-010S-P
modules are capable of 2500base-X, but incorrectly report their
capabilities in the EEPROM.  It seems rather common that GPON modules
mis-report.

Let's fix these modules by adding some quirks.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 22:28:52 -08:00
Russell King
b34bb2cb5b net: sfp: add support for module quirks
Add support for applying module quirks to the list of supported
ethtool link modes.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 22:28:52 -08:00
Hangbin Liu
9bb59a21f5 tcp: warn if offset reach the maxlen limit when using snprintf
snprintf returns the number of chars that would be written, not number
of chars that were actually written. As such, 'offs' may get larger than
'tbl.maxlen', causing the 'tbl.maxlen - offs' being < 0, and since the
parameter is size_t, it would overflow.

Since using scnprintf may hide the limit error, while the buffer is still
enough now, let's just add a WARN_ON_ONCE in case it reach the limit
in future.

v2: Use WARN_ON_ONCE as Jiri and Eric suggested.

Suggested-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 22:23:36 -08:00
wenxu
c0d59da795 ip_gre: Make none-tun-dst gre tunnel store tunnel info as metadat_dst in recv
Currently collect_md gre tunnel will store the tunnel info(metadata_dst)
to skb_dst.
And now the non-tun-dst gre tunnel already can add tunnel header through
lwtunnel.

When received a arp_request on the non-tun-dst gre tunnel. The packet of
arp response will send through the non-tun-dst tunnel without tunnel info
which will lead the arp response packet to be dropped.

If the non-tun-dst gre tunnel also store the tunnel info as metadata_dst,
The arp response packet will set the releted tunnel info in the
iptunnel_metadata_reply.

The following is the test script:

ip netns add cl
ip l add dev vethc type veth peer name eth0 netns cl

ifconfig vethc 172.168.0.7/24 up
ip l add dev tun1000 type gretap key 1000

ip link add user1000 type vrf table 1
ip l set user1000 up
ip l set dev tun1000 master user1000
ifconfig tun1000 10.0.1.1/24 up

ip netns exec cl ifconfig eth0 172.168.0.17/24 up
ip netns exec cl ip l add dev tun type gretap local 172.168.0.17 remote 172.168.0.7 key 1000
ip netns exec cl ifconfig tun 10.0.1.7/24 up
ip r r 10.0.1.7 encap ip id 1000 dst 172.168.0.17 key dev tun1000 table 1

With this patch
ip netns exec cl ping 10.0.1.1 can success

Signed-off-by: wenxu <wenxu@ucloud.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 22:21:30 -08:00
David S. Miller
ee5a489fd9 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:

====================
pull-request: bpf-next 2019-11-20

The following pull-request contains BPF updates for your *net-next* tree.

We've added 81 non-merge commits during the last 17 day(s) which contain
a total of 120 files changed, 4958 insertions(+), 1081 deletions(-).

There are 3 trivial conflicts, resolve it by always taking the chunk from
196e8ca748:

<<<<<<< HEAD
=======
void *bpf_map_area_mmapable_alloc(u64 size, int numa_node);
>>>>>>> 196e8ca748

<<<<<<< HEAD
void *bpf_map_area_alloc(u64 size, int numa_node)
=======
static void *__bpf_map_area_alloc(u64 size, int numa_node, bool mmapable)
>>>>>>> 196e8ca748

<<<<<<< HEAD
        if (size <= (PAGE_SIZE << PAGE_ALLOC_COSTLY_ORDER)) {
=======
        /* kmalloc()'ed memory can't be mmap()'ed */
        if (!mmapable && size <= (PAGE_SIZE << PAGE_ALLOC_COSTLY_ORDER)) {
>>>>>>> 196e8ca748

The main changes are:

1) Addition of BPF trampoline which works as a bridge between kernel functions,
   BPF programs and other BPF programs along with two new use cases: i) fentry/fexit
   BPF programs for tracing with practically zero overhead to call into BPF (as
   opposed to k[ret]probes) and ii) attachment of the former to networking related
   programs to see input/output of networking programs (covering xdpdump use case),
   from Alexei Starovoitov.

2) BPF array map mmap support and use in libbpf for global data maps; also a big
   batch of libbpf improvements, among others, support for reading bitfields in a
   relocatable manner (via libbpf's CO-RE helper API), from Andrii Nakryiko.

3) Extend s390x JIT with usage of relative long jumps and loads in order to lift
   the current 64/512k size limits on JITed BPF programs there, from Ilya Leoshkevich.

4) Add BPF audit support and emit messages upon successful prog load and unload in
   order to have a timeline of events, from Daniel Borkmann and Jiri Olsa.

5) Extension to libbpf and xdpsock sample programs to demo the shared umem mode
   (XDP_SHARED_UMEM) as well as RX-only and TX-only sockets, from Magnus Karlsson.

6) Several follow-up bug fixes for libbpf's auto-pinning code and a new API
   call named bpf_get_link_xdp_info() for retrieving the full set of prog
   IDs attached to XDP, from Toke Høiland-Jørgensen.

7) Add BTF support for array of int, array of struct and multidimensional arrays
   and enable it for skb->cb[] access in kfree_skb test, from Martin KaFai Lau.

8) Fix AF_XDP by using the correct number of channels from ethtool, from Luigi Rizzo.

9) Two fixes for BPF selftest to get rid of a hang in test_tc_tunnel and to avoid
   xdping to be run as standalone, from Jiri Benc.

10) Various BPF selftest fixes when run with latest LLVM trunk, from Yonghong Song.

11) Fix a memory leak in BPF fentry test run data, from Colin Ian King.

12) Various smaller misc cleanups and improvements mostly all over BPF selftests and
    samples, from Daniel T. Lee, Andre Guedes, Anders Roxell, Mao Wenan, Yue Haibing.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 18:11:23 -08:00
Daniel Borkmann
196e8ca748 bpf: Switch bpf_map_{area_alloc,area_mmapable_alloc}() to u64 size
Given we recently extended the original bpf_map_area_alloc() helper in
commit fc9702273e ("bpf: Add mmap() support for BPF_MAP_TYPE_ARRAY"),
we need to apply the same logic as in ff1c08e1f7 ("bpf: Change size
to u64 for bpf_map_{area_alloc, charge_init}()"). To avoid conflicts,
extend it for bpf-next.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-11-20 23:18:58 +01:00
Daniel Borkmann
91e6015b08 bpf: Emit audit messages upon successful prog load and unload
Allow for audit messages to be emitted upon BPF program load and
unload for having a timeline of events. The load itself is in
syscall context, so additional info about the process initiating
the BPF prog creation can be logged and later directly correlated
to the unload event.

The only info really needed from BPF side is the globally unique
prog ID where then audit user space tooling can query / dump all
info needed about the specific BPF program right upon load event
and enrich the record, thus these changes needed here can be kept
small and non-intrusive to the core.

Raw example output:

  # auditctl -D
  # auditctl -a always,exit -F arch=x86_64 -S bpf
  # ausearch --start recent -m 1334
  [...]
  ----
  time->Wed Nov 20 12:45:51 2019
  type=PROCTITLE msg=audit(1574271951.590:8974): proctitle="./test_verifier"
  type=SYSCALL msg=audit(1574271951.590:8974): arch=c000003e syscall=321 success=yes exit=14 a0=5 a1=7ffe2d923e80 a2=78 a3=0 items=0 ppid=742 pid=949 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts0 ses=2 comm="test_verifier" exe="/root/bpf-next/tools/testing/selftests/bpf/test_verifier" subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null)
  type=UNKNOWN[1334] msg=audit(1574271951.590:8974): auid=0 uid=0 gid=0 ses=2 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 pid=949 comm="test_verifier" exe="/root/bpf-next/tools/testing/selftests/bpf/test_verifier" prog-id=3260 event=LOAD
  ----
  time->Wed Nov 20 12:45:51 2019
type=UNKNOWN[1334] msg=audit(1574271951.590:8975): prog-id=3260 event=UNLOAD
  ----
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20191120213816.8186-1-jolsa@kernel.org
2019-11-20 13:44:51 -08:00
David S. Miller
e2193c9334 Merge branch 'r8169-smaller-improvements-to-firmware-handling'
Heiner Kallweit says:

====================
r8169: smaller improvements to firmware handling

This series includes few smaller improvements to firmware handling.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 12:50:25 -08:00
Heiner Kallweit
df0120f12f r8169: add check for PHY_MDIO_CHG to rtl_nic_fw_data_ok
Only values 0 and 1 are currently defined as parameters for
PHY_MDIO_CHG. Instead of silently ignoring unknown values and
misinterpreting the firmware code let's explicitly check.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 12:50:24 -08:00
Heiner Kallweit
cfccde80e8 r8169: use macro FIELD_SIZEOF in definition of FW_OPCODE_SIZE
Using macro FIELD_SIZEOF makes this define easier understandable.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 12:50:24 -08:00
Heiner Kallweit
e20c43dbdf r8169: change mdelay to msleep in rtl_fw_write_firmware
We're not in atomic context here, therefore switch to msleep.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 12:50:24 -08:00
Thomas Bogendoerfer
e2ffe3ff6f net: ipconfig: Wait for deferred device probes
If network device drives are using deferred probing, it was possible
that waiting for devices to show up in ipconfig was already over,
when the device eventually showed up. By calling wait_for_device_probe()
we now make sure deferred probing is done before checking for available
devices.

Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 12:39:53 -08:00
Mao Wenan
2be8ca97d0 vsock/vmci: make vmci_vsock_cb_host_called static
When using make C=2 drivers/misc/vmw_vmci/vmci_driver.o
to compile, below warning can be seen:
drivers/misc/vmw_vmci/vmci_driver.c:33:6: warning:
symbol 'vmci_vsock_cb_host_called' was not declared. Should it be static?

This patch make symbol vmci_vsock_cb_host_called static.

Fixes: b1bba80a43 ("vsock/vmci: register vmci_transport only when VMCI guest/host are active")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Mao Wenan <maowenan@huawei.com>
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 12:39:29 -08:00
David S. Miller
e07e75412b Merge branch 'page_pool-DMA-sync'
Lorenzo Bianconi says:

====================
add DMA-sync-for-device capability to page_pool API

Introduce the possibility to sync DMA memory for device in the page_pool API.
This feature allows to sync proper DMA size and not always full buffer
(dma_sync_single_for_device can be very costly).
Please note DMA-sync-for-CPU is still device driver responsibility.
Relying on page_pool DMA sync mvneta driver improves XDP_DROP pps of
about 170Kpps:

- XDP_DROP DMA sync managed by mvneta driver:	~420Kpps
- XDP_DROP DMA sync managed by page_pool API:	~585Kpps

Do not change naming convention for the moment since the changes will hit other
drivers as well. I will address it in another series.

Changes since v4:
- do not allow the driver to set max_len to 0
- convert PP_FLAG_DMA_MAP/PP_FLAG_DMA_SYNC_DEV to BIT() macro

Changes since v3:
- move dma_sync_for_device before putting the page in ptr_ring in
  __page_pool_recycle_into_ring since ptr_ring can be consumed
  concurrently. Simplify the code moving dma_sync_for_device
  before running __page_pool_recycle_direct/__page_pool_recycle_into_ring

Changes since v2:
- rely on PP_FLAG_DMA_SYNC_DEV flag instead of dma_sync

Changes since v1:
- rename sync in dma_sync
- set dma_sync_size to 0xFFFFFFFF in page_pool_recycle_direct and
  page_pool_put_page routines
- Improve documentation
====================

Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 12:34:37 -08:00
Lorenzo Bianconi
07e13edbb6 net: mvneta: get rid of huge dma sync in mvneta_rx_refill
Get rid of costly dma_sync_single_for_device in mvneta_rx_refill
since now the driver can let page_pool API to manage needed DMA
sync with a proper size.

- XDP_DROP DMA sync managed by mvneta driver:	~420Kpps
- XDP_DROP DMA sync managed by page_pool API:	~585Kpps

Tested-by: Matteo Croce <mcroce@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 12:34:29 -08:00
Lorenzo Bianconi
e68bc75691 net: page_pool: add the possibility to sync DMA memory for device
Introduce the following parameters in order to add the possibility to sync
DMA memory for device before putting allocated pages in the page_pool
caches:
- PP_FLAG_DMA_SYNC_DEV: if set in page_pool_params flags, all pages that
  the driver gets from page_pool will be DMA-synced-for-device according
  to the length provided by the device driver. Please note DMA-sync-for-CPU
  is still device driver responsibility
- offset: DMA address offset where the DMA engine starts copying rx data
- max_len: maximum DMA memory size page_pool is allowed to flush. This
  is currently used in __page_pool_alloc_pages_slow routine when pages
  are allocated from page allocator
These parameters are supposed to be set by device drivers.

This optimization reduces the length of the DMA-sync-for-device.
The optimization is valid because pages are initially
DMA-synced-for-device as defined via max_len. At RX time, the driver
will perform a DMA-sync-for-CPU on the memory for the packet length.
What is important is the memory occupied by packet payload, because
this is the area CPU is allowed to read and modify. As we don't track
cache-lines written into by the CPU, simply use the packet payload length
as dma_sync_size at page_pool recycle time. This also take into account
any tail-extend.

Tested-by: Matteo Croce <mcroce@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 12:34:28 -08:00
Lorenzo Bianconi
f383b29500 net: mvneta: rely on page_pool_recycle_direct in mvneta_run_xdp
Rely on page_pool_recycle_direct and not on xdp_return_buff in
mvneta_run_xdp. This is a preliminary patch to limit the dma sync len
to the one strictly necessary

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 12:34:17 -08:00
Gautam Ramakrishnan
cec2975f2b net: sched: pie: enable timestamp based delay calculation
RFC 8033 suggests an alternative approach to calculate the queue
delay in PIE by using a timestamp on every enqueued packet. This
patch adds an implementation of that approach and sets it as the
default method to calculate queue delay. The previous method (based
on Little's law) to calculate queue delay is set as optional.

Signed-off-by: Gautam Ramakrishnan <gautamramk@gmail.com>
Signed-off-by: Leslie Monis <lesliemonis@gmail.com>
Signed-off-by: Mohit P. Tahiliani <tahiliani@nitk.edu.in>
Acked-by: Dave Taht <dave.taht@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 12:31:45 -08:00
Krzysztof Kozlowski
f01b437d12 isdn: Fix Kconfig indentation
Adjust indentation from spaces to tab (+optional two spaces) as in
coding style with command like:
	$ sed -e 's/^        /\t/' -i */Kconfig

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 12:30:47 -08:00
Krzysztof Kozlowski
041ccdb620 nfc: Fix Kconfig indentation
Adjust indentation from spaces to tab (+optional two spaces) as in
coding style with command like:
	$ sed -e 's/^        /\t/' -i */Kconfig

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 12:30:40 -08:00
David S. Miller
07def46382 Merge branch 'cxgb4-add-TC-MATCHALL-classifier-offload'
Rahul Lakkireddy says:

====================
cxgb4: add TC-MATCHALL classifier offload

This series of patches add support to offload TC-MATCHALL classifier
to hardware to classify all outgoing and incoming traffic on the
underlying port. Only 1 egress and 1 ingress rule each can be
offloaded on the underlying port.

Patch 1 adds support for TC-MATCHALL classifier offload on the egress
side. TC-POLICE is the only action that can be offloaded on the egress
side and is used to rate limit all outgoing traffic to specified max
rate.

Patch 2 adds logic to reject the current rule offload if its priority
conflicts with existing rules in the TCAM.

Patch 3 adds support for TC-MATCHALL classifier offload on the ingress
side. The same set of actions supported by existing TC-FLOWER
classifier offload can be applied on all the incoming traffic.

v5:
- Fixed commit message and comment to include comparison for equal
  priority in patch 2.

v4:
- Removed check in patch 1 to reject police offload if prio is not 1.
- Moved TC_SETUP_BLOCK code to separate function in patch 1.
- Added logic to ensure the prio passed by TC doesn't conflict with
  other rules in TCAM in patch 2.
- Higher index has lower priority than lower index in TCAM. So, rework
  cxgb4_get_free_ftid() to search free index from end of TCAM in
  descending order in patch 2.
- Added check to ensure the matchall rule's prio doesn't conflict with
  other rules in TCAM in patch 3.
- Added logic to fill default mask for VIID, if none has been
  provided, to prevent conflict with duplicate VIID rules in patch 3.
- Used existing variables in private structure to fill VIID info,
  instead of extracting the info manually in patch 3.

v3:
- Added check in patch 1 to reject police offload if prio is not 1.
- Assign block_shared variable only for TC_SETUP_BLOCK in patch 1.

v2:
- Added check to reject flow block sharing for policers in patch 1.
- Removed logic to fetch free index from end of TCAM in patch 2.
  Must maintain the same ordering as in kernel.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 12:05:24 -08:00
Rahul Lakkireddy
21c4c60b76 cxgb4: add TC-MATCHALL classifier ingress offload
Add TC-MATCHALL classifier ingress offload support. The same actions
supported by existing TC-FLOWER offload can be applied to all incoming
traffic on the underlying interface.

Ensure the rule priority doesn't conflict with existing rules in the
TCAM. Only 1 ingress matchall rule can be active at a time on the
underlying interface.

v5:
- No change.

v4:
- Added check to ensure the matchall rule's prio doesn't conflict with
  other rules in TCAM.
- Added logic to fill default mask for VIID, if none has been
  provided, to prevent conflict with duplicate VIID rules.
- Used existing variables in private structure to fill VIID info,
  instead of extracting the info manually.

v3:
- No change.

v2:
- Removed logic to fetch free index from end of TCAM. Must maintain
  same ordering as in kernel.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 12:05:23 -08:00
Rahul Lakkireddy
41ec03e534 cxgb4: check rule prio conflicts before offload
Only offload rule if it satisfies both of the following conditions:
1. The immediate previous rule has priority <= current rule's priority.
2. The immediate next rule has priority >= current rule's priority.

Also rework free entry fetch logic to search from end of TCAM, instead
of beginning, because higher indices have lower priority than lower
indices. This is similar to how TC auto generates priority values.

v5:
- Fixed commit message and comment to include comparison for equal
  priority.

v4:
- Patch added in this version.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 12:05:23 -08:00
Rahul Lakkireddy
4ec4762d8e cxgb4: add TC-MATCHALL classifier egress offload
Add TC-MATCHALL classifier offload with TC-POLICE action applied for
all outgoing traffic on the underlying interface. Split flow block
offload to support both egress and ingress classification.

For example, to rate limit all outgoing traffic to 1 Gbps:

$ tc qdisc add dev enp2s0f4 clsact
$ tc filter add dev enp2s0f4 egress matchall skip_sw \
	action police rate 1Gbit burst 8Kbit

Note that skip_sw is important. Otherwise, both stack and hardware
will end up doing policing. Policing can't be shared across flow
blocks. Only 1 egress matchall rule can be active at a time on the
underlying interface.

v5:
- No change.

v4:
- Removed check to reject police offload if prio is not 1.
- Moved TC_SETUP_BLOCK code to separate function.

v3:
- Added check to reject police offload if prio is not 1.
- Assign block_shared variable only for TC_SETUP_BLOCK.

v2:
- Added check to reject flow block sharing for policers.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 12:05:23 -08:00
David S. Miller
77c05d2f73 Merge branch 'page_pool-API-for-numa-node-change-handling'
Saeed Mahameed says:

====================
page_pool: API for numa node change handling

This series extends page pool API to allow page pool consumers to update
page pool numa node on the fly. This is required since on some systems,
rx rings irqs can migrate between numa nodes, due to irq balancer or user
defined scripts, current page pool has no way to know of such migration
and will keep allocating and holding on to pages from a wrong numa node,
which is bad for the consumer performance.

1) Add API to update numa node id of the page pool
Consumers will call this API to update the page pool numa node id.

2) Don't recycle non-reusable pages:
Page pool will check upon page return whether a page is suitable for
recycling or not.
 2.1) when it belongs to a different num node.
 2.2) when it was allocated under memory pressure.

3) mlx5 will use the new API to update page pool numa id on demand.

The series is a joint work between me and Jonathan, we tested it and it
proved itself worthy to avoid page allocator bottlenecks and improve
packet rate and cpu utilization significantly for the described
scenarios above.

Performance testing:
XDP drop/tx rate and TCP single/multi stream, on mlx5 driver
while migrating rx ring irq from close to far numa:

mlx5 internal page cache was locally disabled to get pure page pool
results.

CPU: Intel(R) Xeon(R) CPU E5-2603 v4 @ 1.70GHz
NIC: Mellanox Technologies MT27700 Family [ConnectX-4] (100G)

XDP Drop/TX single core:
NUMA  | XDP  | Before    | After
---------------------------------------
Close | Drop | 11   Mpps | 10.9 Mpps
Far   | Drop | 4.4  Mpps | 5.8  Mpps

Close | TX   | 6.5 Mpps  | 6.5 Mpps
Far   | TX   | 3.5 Mpps  | 4   Mpps

Improvement is about 30% drop packet rate, 15% tx packet rate for numa
far test.
No degradation for numa close tests.

TCP single/multi cpu/stream:
NUMA  | #cpu | Before  | After
--------------------------------------
Close | 1    | 18 Gbps | 18 Gbps
Far   | 1    | 15 Gbps | 18 Gbps
Close | 12   | 80 Gbps | 80 Gbps
Far   | 12   | 68 Gbps | 80 Gbps

In all test cases we see improvement for the far numa case, and no
impact on the close numa case.

==================

Performance analysis and conclusions by Jesper [1]:
Impact on XDP drop x86_64 is inconclusive and shows only 0.3459ns
slow-down, as this is below measurement accuracy of system.

v2->v3:
 - Rebase on top of latest net-next and Jesper's page pool object
   release patchset [2]
 - No code changes
 - Performance analysis by Jesper added to the cover letter.

v1->v2:
  - Drop last patch, as requested by Ilias and Jesper.
  - Fix documentation's performance numbers order.

[1] https://github.com/xdp-project/xdp-project/blob/master/areas/mem/page_pool04_inflight_changes.org#performance-notes
[2] https://patchwork.ozlabs.org/cover/1192098/
====================

Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 11:47:36 -08:00
Saeed Mahameed
6849c6d86b net/mlx5e: Rx, Update page pool numa node when changed
Once every napi poll cycle, check if numa node is different than
the page pool's numa id, and update it using page_pool_update_nid().

Alternatively, we could have registered an irq affinity change handler,
but page_pool_update_nid() must be called from napi context anyways, so
the handler won't actually help.

Performance testing:
XDP drop/tx rate and TCP single/multi stream, on mlx5 driver
while migrating rx ring irq from close to far numa:

mlx5 internal page cache was locally disabled to get pure page pool
results.

CPU: Intel(R) Xeon(R) CPU E5-2603 v4 @ 1.70GHz
NIC: Mellanox Technologies MT27700 Family [ConnectX-4] (100G)

XDP Drop/TX single core:
NUMA  | XDP  | Before    | After
---------------------------------------
Close | Drop | 11   Mpps | 10.9 Mpps
Far   | Drop | 4.4  Mpps | 5.8  Mpps

Close | TX   | 6.5 Mpps  | 6.5 Mpps
Far   | TX   | 3.5 Mpps  | 4  Mpps

Improvement is about 30% drop packet rate, 15% tx packet rate for numa
far test.
No degradation for numa close tests.

TCP single/multi cpu/stream:
NUMA  | #cpu | Before  | After
--------------------------------------
Close | 1    | 18 Gbps | 18 Gbps
Far   | 1    | 15 Gbps | 18 Gbps
Close | 12   | 80 Gbps | 80 Gbps
Far   | 12   | 68 Gbps | 80 Gbps

In all test cases we see improvement for the far numa case, and no
impact on the close numa case.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 11:47:36 -08:00
Saeed Mahameed
d5394610b1 page_pool: Don't recycle non-reusable pages
A page is NOT reusable when at least one of the following is true:
1) allocated when system was under some pressure. (page_is_pfmemalloc)
2) belongs to a different NUMA node than pool->p.nid.

To update pool->p.nid users should call page_pool_update_nid().

Holding on to such pages in the pool will hurt the consumer performance
when the pool migrates to a different numa node.

Performance testing:
XDP drop/tx rate and TCP single/multi stream, on mlx5 driver
while migrating rx ring irq from close to far numa:

mlx5 internal page cache was locally disabled to get pure page pool
results.

CPU: Intel(R) Xeon(R) CPU E5-2603 v4 @ 1.70GHz
NIC: Mellanox Technologies MT27700 Family [ConnectX-4] (100G)

XDP Drop/TX single core:
NUMA  | XDP  | Before    | After
---------------------------------------
Close | Drop | 11   Mpps | 10.9 Mpps
Far   | Drop | 4.4  Mpps | 5.8  Mpps

Close | TX   | 6.5 Mpps  | 6.5 Mpps
Far   | TX   | 3.5 Mpps  | 4  Mpps

Improvement is about 30% drop packet rate, 15% tx packet rate for numa
far test.
No degradation for numa close tests.

TCP single/multi cpu/stream:
NUMA  | #cpu | Before  | After
--------------------------------------
Close | 1    | 18 Gbps | 18 Gbps
Far   | 1    | 15 Gbps | 18 Gbps
Close | 12   | 80 Gbps | 80 Gbps
Far   | 12   | 68 Gbps | 80 Gbps

In all test cases we see improvement for the far numa case, and no
impact on the close numa case.

The impact of adding a check per page is very negligible, and shows no
performance degradation whatsoever, also functionality wise it seems more
correct and more robust for page pool to verify when pages should be
recycled, since page pool can't guarantee where pages are coming from.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 11:47:36 -08:00
Saeed Mahameed
bc83674870 page_pool: Add API to update numa node
Add page_pool_update_nid() to be called by page pool consumers when they
detect numa node changes.

It will update the page pool nid value to start allocating from the new
effective numa node.

This is to mitigate page pool allocating pages from a wrong numa node,
where the pool was originally allocated, and holding on to pages that
belong to a different numa node, which causes performance degradation.

For pages that are already being consumed and could be returned to the
pool by the consumer, in next patch we will add a check per page to avoid
recycling them back to the pool and return them to the page allocator.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 11:47:36 -08:00
David S. Miller
1f12177b32 Merge branch 'cpsw-switchdev'
Grygorii Strashko says:

====================
net: ethernet: ti: introduce new cpsw switchdev based driver

Thank you All for review of v6.

There are no significant changes in this version, just fixed comments to v6.

--- v6
The major change in this version is DT bindings conversation to json-schema, and
fixed other comments to v5. Also added patch to clean up ALE on init and netif
restart.

--- v5
The major part of work done in this iteration is rebasing on top of net-next
with XDP series from Ivan Khoronzhuk [3], and enable XDP support in the new
CPSW switchdev driver (it was little bit painful ;(). There are mostly no
functional changes in new CPSW driver, just few fixes, sync with old driver
and cleanups/optimizations. So, I've kept rest of cover letter unchanged.

---
This series originally based on work [1][2] done by
Ilias Apalodimas <ilias.apalodimas@linaro.org>.

This the RFC v5 which introduces new CPSW switchdev based driver which is
operating in dual-emac mode by default, thus working as 2 individual
network interfaces. The Switch mode can be enabled by configuring devlink driver
parameter "switch_mode" to 1/true:
	devlink dev param set platform/48484000.switch \
	name switch_mode value 1 cmode runtime
This can be done regardless of the state of Port's netdev devices - UP/DOWN, but
Port's netdev devices have to be in UP before joining the bridge to avoid
overwriting of bridge configuration as CPSW switch driver completely reloads its
configuration when first Port changes its state to UP.
When the both interfaces joined the bridge - CPSW switch driver will start
marking packets with offload_fwd_mark flag unless "ale_bypass=0".
All configuration is implemented via switchdev API.

The previous solution of tracking both Ports joined the bridge
(from netdevice_notifier) proved to be not correct as changing CPSW switch
driver mode required cleanup of ALE table and CPSW settings which happens
while second Port is joined bridge and as result configuration loaded
by bridge for the first Port became corrupted.

The introduction of the new CPSW switchdev based driver (cpsw_new.c) is split
on two parts: Part 1 - basic dual-emac driver; Part 2 switchdev support.
Such approach has simplified code development and testing alot. And, I hope,
it will help with better review.

patches #1 - 5: preparation patches which also moves common code to cpsw_priv.c
patches #6 - 9: Introduce TI CPSW switch driver based on switchdev and new
 DT bindings
patch #10: new CPSW switchdev driver documentation
patch #11: adds DT nodes for new CPSW switchdev driver added for DRA7 SoC
patch #12: adds DT nodes for new cpsw switchdev driver for am571x-idk board
patch #13: enables build of TI CPSW driver

Most of the contents of the previous cover-letter have been added in
new driver documentation, so please refer to that for configuration,
testing and future work.

These patches can be found at (branch contains some additional patches required
for testing on top of net-next):
 https://github.com/grygoriyS/linux.git
 branch: lkml-5.4-switch-tbd-v7

changes in v7:
 - patch 2: added check for devm_kmalloc_array() return value
 - patch 6: fixed comments

changes in v6: https://lkml.org/lkml/2019/11/9/108
 - DT bindings converted to json-schema
 - netdev initialization is split on creation and registration.
   The netdevs registration happens now at the end of the pobe.
 - reworked cpsw_set_pauseparam() to use PHYlib APIs.
 - other comments for v5 fixed

v5: https://patchwork.kernel.org/cover/11208785/
 - rebase on top of net-next with XDP series from Ivan Khoronzhuk [3],
   and enable XDP support in the new CPSW switchdev driver
   cpsw driver (tested XDP_DROP only)
 - sync with old cpsw driver
 - implement comments from  Ivan Khoronzhuk and Rob Herring
 - fixed "NETDEV WATCHDOG: .." warning after interface after interface UP/DOWN,
   missed TX wake in cpsw_adjust_link()

v4: https://patchwork.kernel.org/cover/11010523/
 - finished split of common CPSW code
 - added devlink support
 - changed CPSW mode configuration approach: from netdevice_notifier to devlink
   parameter
 - refactor and clean up ALE changes which allows to modify VLANs/MDBs entries
 - added missed support for port QDISC_CBS and QDISC_MQPRIO
 - the CPSW is split on two parts: basic dual_mac driver and switchdev support
 - added missed callback .ndo_get_port_parent_id()
 - reworked ingress frames marking in switch mode (offload_fwd_mark)
 - applied comments from Andrew Lunn

v3: https://lwn.net/Articles/786677/
Changes in v3:
- alot of work done to split properly common code between legacy and switchdev
  CPSW drivers and clean up code
- CPSW switchdev interface updated to the current LKML switchdev interface
- actually new CPSW switchdev based driver introduced
- optimized dual_mac mode in new driver. Main change is that in promiscuous
mode P0_UNI_FLOOD (both ports) is enabled in addition to ALLMULTI (current
port) instead of ALE_BYPASS.  So, port in non promiscuous mode will keep
possibility of mcast and vlan filtering.
- changed bridge join sequnce: now switch mode will be enabled only when
both ports joined the bridge. CPSW will be switched to dual_mac mode if any
port leave bridge. ALE table is completly cleared and then refiled while
switching to switch mode - this simplidies code a lot, but introduces some
limitation to bridge setup sequence:
 ip link add name br0 type bridge
 ip link set dev br0 type bridge ageing_time 1000
 ip link set dev br0 type bridge vlan_filtering 0 <- disable
 echo 0 > /sys/class/net/br0/bridge/default_vlan

 ip link set dev sw0p1 up <- add ports
 ip link set dev sw0p2 up
 ip link set dev sw0p1 master br0
 ip link set dev sw0p2 master br0

 echo 1 > /sys/class/net/br0/bridge/default_vlan <- enable
 ip link set dev br0 type bridge vlan_filtering 1
 bridge vlan add dev br0 vid 1 pvid untagged self
- STP tested with vlan_filtering 1/0. To make STP work I've had to set
  NO_SA_UPDATE for all slave ports (see comment in code). It also required to
  statically register STP mcast address {0x01, 0x80, 0xc2, 0x0, 0x0, 0x0};
- allowed build both TI_CPSW and TI_CPSW_SWITCHDEV drivers
- PTP can be enabled on both ports in dual_mac mode

[1] https://patchwork.ozlabs.org/cover/929367/
[2] https://patches.linaro.org/cover/136709/
[3] https://patchwork.kernel.org/cover/11035813/
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 11:25:24 -08:00
Grygorii Strashko
3727d259dd arm: omap2plus_defconfig: enable new cpsw switchdev driver
Add CONFIG_TI_CPSW_SWITCHDEV option to enable new cpsw switchdev driver

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 11:25:24 -08:00
Grygorii Strashko
15b991ade4 ARM: dts: am571x-idk: enable for new cpsw switch dev driver
Add DT nodes for new cpsw switchdev driver for am571x-idk board for now to
enable testing of the new solution.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 11:25:24 -08:00