Commit Graph

967266 Commits

Author SHA1 Message Date
Ido Schimmel
ca787e0b93 ipv4: Set nexthop flags in a more consistent way
Be more consistent about the way in which the nexthop flags are set and
set them in one go.

Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20201110102553.1924232-1-idosch@idosch.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-11 17:45:55 -08:00
Andrew Lunn
0575bedd6a drivers: net: sky2: Fix -Wstringop-truncation with W=1
In function ‘strncpy’,
    inlined from ‘sky2_name’ at drivers/net/ethernet/marvell/sky2.c:4903:3,
    inlined from ‘sky2_probe’ at drivers/net/ethernet/marvell/sky2.c:5049:2:
./include/linux/string.h:297:30: warning: ‘__builtin_strncpy’ specified bound 16 equals destination size [-Wstringop-truncation]

None of the device names are 16 characters long, so it was never an
issue. But replace the strncpy with an snprintf() to prevent the
theoretical overflow.

Suggested-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Link: https://lore.kernel.org/r/20201110023222.1479398-1-andrew@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-11 17:42:24 -08:00
Kurt Kanzenbach
2492ae6bee MAINTAINERS: Add entry for Hirschmann Hellcreek Switch Driver
Add myself to cover the Hirschmann Hellcreek TSN Ethernet Switch Driver.

Suggested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20201110071829.7467-1-kurt@linutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-11 17:28:20 -08:00
Jakub Kicinski
fc8f29b35c Merge branch 'net-evaluate-net-ipvX-conf-all-sysctls'
Vincent Bernat says:

====================
net: evaluate net.ipvX.conf.all.* sysctls

Some per-interface sysctls are ignoring the "all" variant. This
patchset fixes some of them when such a sysctl is handled as a
boolean. This includes:

 - net.ipvX.conf.all.disable_policy
 - net.ipvX.conf.all.disable_policy.disable_xfrm
 - net.ipv4.conf.all.proxy_arp_pvlan
 - net.ipvX.conf.all.ignore_routes_with_linkdown

Two sysctls are still ignoring the "all" variant as it wouldn't make
much sense for them:

 - net.ipv4.conf.all.tag
 - net.ipv4.conf.all.medium_id

Ideally, the "all" variant should be removed, but there is no simple
alternative to DEVINET_SYSCTL_* macros that would allow one to not
expose and "all" entry.
====================

Link: https://lore.kernel.org/r/20201107193515.1469030-1-vincent@bernat.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-11 16:42:33 -08:00
Vincent Bernat
62679a8d3a net: evaluate net.ipvX.conf.all.disable_policy and disable_xfrm
The disable_policy and disable_xfrm are a per-interface sysctl to
disable IPsec policy or encryption on an interface. However, while a
"all" variant is exposed, it was a noop since it was never evaluated.
We use the usual "or" logic for this kind of sysctls.

Signed-off-by: Vincent Bernat <vincent@bernat.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-11 16:41:31 -08:00
Vincent Bernat
1af5318c00 net: evaluate net.ipv4.conf.all.proxy_arp_pvlan
Introduced in 65324144b5, the "proxy_arp_vlan" sysctl is a
per-interface sysctl to tune proxy ARP support for private VLANs.
While the "all" variant is exposed, it was a noop and never evaluated.
We use the usual "or" logic for this kind of sysctls.

Fixes: 65324144b5 ("net: RFC3069, private VLAN proxy arp support")
Signed-off-by: Vincent Bernat <vincent@bernat.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-11 16:41:31 -08:00
Vincent Bernat
c0c5a60f0f net: evaluate net.ipvX.conf.all.ignore_routes_with_linkdown
Introduced in 0eeb075fad, the "ignore_routes_with_linkdown" sysctl
ignores a route whose interface is down. It is provided as a
per-interface sysctl. However, while a "all" variant is exposed, it
was a noop since it was never evaluated. We use the usual "or" logic
for this kind of sysctls.

Tested with:

    ip link add type veth # veth0 + veth1
    ip link add type veth # veth1 + veth2
    ip link set up dev veth0
    ip link set up dev veth1 # link-status paired with veth0
    ip link set up dev veth2
    ip link set up dev veth3 # link-status paired with veth2

    # First available path
    ip -4 addr add 203.0.113.${uts#H}/24 dev veth0
    ip -6 addr add 2001:db8:1::${uts#H}/64 dev veth0

    # Second available path
    ip -4 addr add 192.0.2.${uts#H}/24 dev veth2
    ip -6 addr add 2001:db8:2::${uts#H}/64 dev veth2

    # More specific route through first path
    ip -4 route add 198.51.100.0/25 via 203.0.113.254 # via veth0
    ip -6 route add 2001:db8:3::/56 via 2001:db8:1::ff # via veth0

    # Less specific route through second path
    ip -4 route add 198.51.100.0/24 via 192.0.2.254 # via veth2
    ip -6 route add 2001:db8:3::/48 via 2001:db8:2::ff # via veth2

    # H1: enable on "all"
    # H2: enable on "veth0"
    for v in ipv4 ipv6; do
      case $uts in
        H1)
          sysctl -qw net.${v}.conf.all.ignore_routes_with_linkdown=1
          ;;
        H2)
          sysctl -qw net.${v}.conf.veth0.ignore_routes_with_linkdown=1
          ;;
      esac
    done

    set -xe
    # When veth0 is up, best route is through veth0
    ip -o route get 198.51.100.1 | grep -Fw veth0
    ip -o route get 2001:db8:3::1 | grep -Fw veth0

    # When veth0 is down, best route should be through veth2 on H1/H2,
    # but on veth0 on H2
    ip link set down dev veth1 # down veth0
    ip route show
    [ $uts != H3 ] || ip -o route get 198.51.100.1 | grep -Fw veth0
    [ $uts != H3 ] || ip -o route get 2001:db8:3::1 | grep -Fw veth0
    [ $uts = H3 ] || ip -o route get 198.51.100.1 | grep -Fw veth2
    [ $uts = H3 ] || ip -o route get 2001:db8:3::1 | grep -Fw veth2

Without this patch, the two last lines would fail on H1 (the one using
the "all" sysctl). With the patch, everything succeeds as expected.

Also document the sysctl in `ip-sysctl.rst`.

Fixes: 0eeb075fad ("net: ipv4 sysctl option to ignore routes when nexthop link is down")
Signed-off-by: Vincent Bernat <vincent@bernat.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-11 16:41:30 -08:00
Jakub Kicinski
c079fe2480 Merge branch 'net-qrtr-add-distant-node-support'
Loic Poulain says:

====================
net: qrtr: Add distant node support

QRTR protocol allows a node to communicate with an other non-immediate
node via an intermdediate immediate node acting as a 'bridge':

node-0 <=> node-1 <=> node-2

This is currently not supported in this upstream version and this
series aim to fix that.

This series is V2 because changes 1, 2 and 3 have already been submitted
separately on LKML.

Changes in v2:
- Add reviewed-by tags from Bjorn and Mani
- Fixing checkpatch issue reported by Jakub
====================

Link: https://lore.kernel.org/r/1604684010-24090-1-git-send-email-loic.poulain@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-11 15:29:37 -08:00
Loic Poulain
90829f07ba net: qrtr: Release distant nodes along the bridge node
Distant QRTR nodes can be accessed via an other node that acts as
a bridge. When the a QRTR endpoint associated to a bridge node is
released, all the linked distant nodes should also be released.

This patch fixes endpoint release by:
- Submitting QRTR BYE message locally on behalf of all the nodes
accessible through the endpoint.
- Removing all the routable node IDs from radix tree pointing to
the released node endpoint.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-11 15:29:34 -08:00
Loic Poulain
f7dec6cb91 net: qrtr: Add GFP flags parameter to qrtr_alloc_ctrl_packet
This will be requested for allocating control packet in atomic context.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-11 15:29:34 -08:00
Loic Poulain
0baa99ee35 net: qrtr: Allow non-immediate node routing
In order to reach non-immediate remote node services that are
accessed through an intermediate node, the route to the remote
node needs to be saved.

E.g for a [node1 <=> node2 <=> node3] network
- node2 forwards node3 service to node1
- node1 must save node2 as route for reaching node3

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-11 15:29:34 -08:00
Loic Poulain
87f547c108 net: qrtr: Allow forwarded services
A remote endpoint (immediate neighbors node) can forward services
from other nodes (non-immadiate), in that case ctrl packet node ID
(offering distant service) can differ from the qrtr source node
(forwarding the packet).

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-11 15:29:34 -08:00
Loic Poulain
ae068f561b net: qrtr: Fix port ID for control messages
The port ID for control messages was uncorrectly set with broadcast
node ID value, causing message to be dropped on remote side since
not passing packet filtering (cb->dst_port != QRTR_PORT_CTRL).

Fixes: d27e77a3de ("net: qrtr: Reset the node and port ID of broadcast messages")
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-11 15:29:34 -08:00
Jisheng Zhang
a884915f4c net: stmmac: dwc-qos: Change the dwc_eth_dwmac_data's .probe prototype
The return pointer of dwc_eth_dwmac_data's .probe isn't used, and
"probe" usually return int, so change the prototype to follow standard
way. Secondly, it can simplify the tegra_eqos_probe() code.

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Link: https://lore.kernel.org/r/20201109160440.3a736ee3@xhacker.debian
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-11 15:15:02 -08:00
Ioana Ciornei
214c798ba1 net: phy: aquantia: do not return an error on clearing pending IRQs
The referenced commit added in .config_intr() the part of code which upon
configuration of the IRQ state it also clears up any pending IRQ. If
there were actually pending IRQs, a read on the IRQ status register will
return something non zero. This should not result in the callback
returning an error.

Fix this by returning an error only when the result of the
phy_read_mmd() is negative.

Fixes: e11ef96d44 ("net: phy: aquantia: remove the use of .ack_interrupt()")
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Tested-by: Camelia Groza <camelia.groza@nxp.com>
Link: https://lore.kernel.org/r/20201109154601.3812574-1-ciorneiioana@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-11 14:09:54 -08:00
Jakub Kicinski
8ed1045bb8 Merge branch 'net-ipa-little-fixes'
Alex Elder says:

====================
net: ipa: little fixes

This series adds a few small fixes to the IPA code.

The first patch appeared in a different form in June, and got some
pushback from David because he felt a problem that can be caught at
build time *should* be caught at build time.
  https://lore.kernel.org/netdev/20200610195332.2612233-1-elder@linaro.org/
I agree with that, but in this case the "problem" was never actually
a problem.  There's a little more explanation on the patch, but
basically now we remove the BUILD_BUG_ON() call entirely.

The second deletes a line of code that isn't needed.

The third converts a warning message to be a debug, as requested by
Stephen Boyd.

And the last one just gets rid of an error message that would be
output after a different message had already reported a problem.
====================

Link: https://lore.kernel.org/r/20201109165635.5449-1-elder@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-11 14:07:03 -08:00
Alex Elder
bf795af1d4 net: ipa: drop an error message
There is no need for gsi_modem_channel_halt() to report an error,
because gsi_generic_command() will already have done that if the
command times out.  So get rid of the extra message.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-11 14:07:00 -08:00
Alex Elder
2c642c48b3 net: ipa: change a warning to debug
When we determine from hardware what the size of IPA memory is
we compare it against what we learned about it from DT.

If DT defines a region that's larger than actual memory, we use the
smaller actual size and issue a warning.

If DT defines a smaller region than actual memory we issue a warning
too.  But in this case the difference is harmless; so rather than
issuing a warning, just provide a debug message instead.

Reorder these checks so the one that matters more is done first.

Reported-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-11 14:07:00 -08:00
Alex Elder
49e3aeeb21 net: ipa: get rid of a useless line of code
Delete a spurious line of code in ipa_hardware_config().  It reads a
register value then ignores the value, so is completely unnecessary.

Add a missing word in a comment.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-11 14:07:00 -08:00
Alex Elder
5b8b2262b3 net: ipa: don't break build on large transaction size
The following call in ipa_validate_build() is erroneous:

    BUILD_BUG_ON(sizeof(struct gsi_trans) > 128);

The fact is, it is not a bug for the size of a GSI transaction to be
bigger than 128 bytes.  The correct operation of the driver is not
dependent on the size of this structure.  The only consequence of
the transaction being large is that the amount of memory required
is larger.

The problem this was trying to flag is that a *slight* increase in
the size of this structure will have a disproportionate effect on
the amount of memory used.  E.g. if the structure grew to 132 bytes
the memory requirement for the transaction arrays would be about
double.

With various debugging build flags enabled, the size grows to 160
bytes.  But there's no reason to treat that as a build-time bug.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-11 14:07:00 -08:00
Jakub Kicinski
70408949a3 Merge branch 'inet-prevent-skb-changes-in-udp-4-6-_lib_lookup_skb'
Eric Dumazet says:

====================
inet: prevent skb changes in udp{4|6}_lib_lookup_skb()

This came while reviewing Alexander Lobakin patch against UDP GRO:

We want to make sure skb wont be changed by these helpers
while it is owned by GRO stack.
====================

Link: https://lore.kernel.org/r/20201109231349.20946-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-10 17:57:20 -08:00
Eric Dumazet
7b58e63e74 inet: udp{4|6}_lib_lookup_skb() skb argument is const
The skb is needed only to fetch the keys for the lookup.

Both functions are used from GRO stack, we do not want
accidental modification of the skb.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Alexander Lobakin <alobakin@pm.me>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-10 17:57:14 -08:00
Eric Dumazet
d6bb2d1e86 inet: constify inet_sdif() argument
inet_sdif() does not modify the skb.

This will permit propagating the const qualifier in
udp{4|6}_lib_lookup_skb() functions.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Alexander Lobakin <alobakin@pm.me>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-10 17:56:54 -08:00
Colin Ian King
2776d2320a net: dsa: fix unintended sign extension on a u16 left shift
The left shift of u16 variable high is promoted to the type int and
then sign extended to a 64 bit u64 value.  If the top bit of high is
set then the upper 32 bits of the result end up being set by the
sign extension. Fix this by explicitly casting the value in high to
a u64 before left shifting by 16 places.

Also, remove the initialisation of variable value to 0 at the start
of each loop iteration as the value is never read and hence the
assignment it is redundant.

Addresses-Coverity: ("Unintended sign extension")
Fixes: e4b27ebc78 ("net: dsa: Add DSA driver for Hirschmann Hellcreek switches")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Kurt Kanzenbach <kurt@linutronix.de>
Link: https://lore.kernel.org/r/20201109124008.2079873-1-colin.king@canonical.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-10 17:46:20 -08:00
Menglong Dong
e5a4b17da1 net: sched: fix misspellings using misspell-fixer tool
Some typos are found out by misspell-fixer tool:

$ misspell-fixer -rnv ./net/sched/
./net/sched/act_api.c:686
./net/sched/act_bpf.c:68
./net/sched/cls_rsvp.h:241
./net/sched/em_cmp.c:44
./net/sched/sch_pie.c:408

Fix typos found by misspell-fixer.

Signed-off-by: Menglong Dong <dong.menglong@zte.com.cn>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/r/5fa8e9d4.1c69fb81.5d889.5c64@mx.google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-10 17:00:28 -08:00
Kaixu Xia
1aa844b921 net: pch_gbe: remove unneeded variable retval in __pch_gbe_suspend
Fix the following coccicheck warning:

./drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c:2415:5-11: Unneeded variable: "retval". Return "0" on line 2435

Reported-by: Tosk Robot <tencent_os_robot@tencent.com>
Signed-off-by: Kaixu Xia <kaixuxia@tencent.com>
Link: https://lore.kernel.org/r/1604837580-12419-1-git-send-email-kaixuxia@tencent.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-10 15:26:31 -08:00
Kaixu Xia
3ec94da976 net: atlantic: Remove unnecessary conversion to bool
The '!=' expression itself is bool, no need to convert it to bool.
Fix the following coccicheck warning:

./drivers/net/ethernet/aquantia/atlantic/aq_nic.c:1477:34-39: WARNING: conversion to bool not needed here

Reported-by: Tosk Robot <tencent_os_robot@tencent.com>
Signed-off-by: Kaixu Xia <kaixuxia@tencent.com>
Link: https://lore.kernel.org/r/1604797919-10157-1-git-send-email-kaixuxia@tencent.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-10 15:24:49 -08:00
Menglong Dong
30e2379e82 net: ipv4: remove redundant initialization in inet_rtm_deladdr
The initialization for 'err' with '-EINVAL' is redundant and
can be removed, as it is updated soon.

Changes since v1:
- Remove redundant empty line

Signed-off-by: Menglong Dong <dong.menglong@zte.com.cn>
Link: https://lore.kernel.org/r/20201108010541.12432-1-dong.menglong@zte.com.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-10 15:22:05 -08:00
Guillaume Nault
1ccd58331f selftests: disable rp_filter when testing bareudp
Some systems have rp_filter=1 as default configuration. This breaks
bareudp.sh as the intermediate namespaces handle part of the routing
with regular IPv4 routes but the reverse path is done with tc
(flower/tunnel_key/mirred).

Signed-off-by: Guillaume Nault <gnault@redhat.com>
Link: https://lore.kernel.org/r/28140b7d20161e4f766b558018fe2718f9bc1117.1604767577.git.gnault@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-10 15:14:19 -08:00
Alexander Lobakin
8be33ecfc1 net: skb_vlan_untag(): don't reset transport offset if set by GRO layer
Similar to commit fda55eca5a
("net: introduce skb_transport_header_was_set()"), avoid resetting
transport offsets that were already set by GRO layer. This not only
mirrors the behavior of __netif_receive_skb_core(), but also makes
sense when it comes to UDP GSO fraglists forwarding: transport offset
of such skbs is set only once by GRO receive callback and remains
untouched and correct up to the xmitting driver in 1:1 case, but
becomes junk after untagging in ingress VLAN case and breaks UDP
GSO offload. This does not happen after this change, and all types
of forwarding of UDP GSO fraglists work as expected.

Since v1 [1]:
 - keep the code 1:1 with __netif_receive_skb_core() (Jakub).

[1] https://lore.kernel.org/netdev/zYurwsZRN7BkqSoikWQLVqHyxz18h4LhHU4NFa2Vw@cp4-web-038.plabs.ch

Signed-off-by: Alexander Lobakin <alobakin@pm.me>
Link: https://lore.kernel.org/r/7JgIkgEztzt0W6ZtC9V9Cnk5qfkrUFYcpN871syCi8@cp4-web-040.plabs.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-09 20:03:55 -08:00
Jakub Kicinski
52643b7832 Merge branch 'net-add-and-use-dev_get_tstats64'
Heiner Kallweit says:

====================
net: add and use dev_get_tstats64

It's a frequent pattern to use netdev->stats for the less frequently
accessed counters and per-cpu counters for the frequently accessed
counters (rx/tx bytes/packets). Add a default ndo_get_stats64()
implementation for this use case. Subsequently switch more drivers
to use this pattern.

v2:
- add patches for replacing ip_tunnel_get_stats64
  Requested additional migrations will come in a separate series.

v3:
- add atomic_long_t member rx_frame_errors in patch 3 for making
  counter updates atomic
====================

Link: https://lore.kernel.org/r/99273e2f-c218-cd19-916e-9161d8ad8c56@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-09 17:50:33 -08:00
Heiner Kallweit
682036b2b9 net: remove ip_tunnel_get_stats64
After having migrated all users remove ip_tunnel_get_stats64().

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-09 17:50:28 -08:00
Heiner Kallweit
98d7fc4638 ipv4/ipv6: switch to dev_get_tstats64
Replace ip_tunnel_get_stats64() with the new identical core function
dev_get_tstats64().

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-09 17:50:28 -08:00
Heiner Kallweit
8f3feb2420 vti: switch to dev_get_tstats64
Replace ip_tunnel_get_stats64() with the new identical core function
dev_get_tstats64().

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-09 17:50:28 -08:00
Heiner Kallweit
42f9e5f0c6 wireguard: switch to dev_get_tstats64
Replace ip_tunnel_get_stats64() with the new identical core function
dev_get_tstats64().

Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-09 17:50:28 -08:00
Heiner Kallweit
250f19c751 gtp: switch to dev_get_tstats64
Replace ip_tunnel_get_stats64() with the new identical core function
dev_get_tstats64().

Acked-by: Harald Welte <laforge@gnumonks.org>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-09 17:50:28 -08:00
Heiner Kallweit
b220a4a79c net: switch to dev_get_tstats64
Replace ip_tunnel_get_stats64() with the new identical core function
dev_get_tstats64().

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-09 17:50:28 -08:00
Heiner Kallweit
6b840a04fe ip6_tunnel: use ip_tunnel_get_stats64 as ndo_get_stats64 callback
Switch ip6_tunnel to the standard statistics pattern:
- use dev->stats for the less frequently accessed counters
- use dev->tstats for the frequently accessed counters

An additional benefit is that we now have 64bit statistics also on
32bit systems.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-09 17:50:28 -08:00
Heiner Kallweit
497a5757ce tun: switch to net core provided statistics counters
Switch tun to the standard statistics pattern:
- use netdev->stats for the less frequently accessed counters
- use netdev->tstats for the frequently accessed per-cpu counters

v3:
- add atomic_long_t member rx_frame_errors for making counter updates
  atomic

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-09 17:50:28 -08:00
Heiner Kallweit
6a90062879 net: dsa: use net core stats64 handling
Use netdev->tstats instead of a member of dsa_slave_priv for storing
a pointer to the per-cpu counters. This allows us to use core
functionality for statistics handling.

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-09 17:50:27 -08:00
Heiner Kallweit
a18394269f net: core: add dev_get_tstats64 as a ndo_get_stats64 implementation
It's a frequent pattern to use netdev->stats for the less frequently
accessed counters and per-cpu counters for the frequently accessed
counters (rx/tx bytes/packets). Add a default ndo_get_stats64()
implementation for this use case.

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-09 17:50:27 -08:00
Tobias Waldekranz
ca4d632aef net: dsa: mv88e6xxx: Export VTU as devlink region
Export the raw VTU data and related registers in a devlink region so
that it can be inspected from userspace and compared to the current
bridge configuration.

Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20201109082927.8684-1-tobias@waldekranz.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-09 17:43:22 -08:00
Jisheng Zhang
8b7e0a01df net: phy: microchip_t1: Don't set .config_aneg
The .config_aneg in microchip_t1 is genphy_config_aneg, so it's not
needed, because the phy core will call genphy_config_aneg() if the
.config_aneg is NULL.

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20201109091605.3951c969@xhacker.debian
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-09 17:41:17 -08:00
Kaixu Xia
785d21b826 net/mlx4: Assign boolean values to a bool variable
Fix the following coccinelle warnings:

./drivers/net/ethernet/mellanox/mlx4/en_rx.c:687:1-17: WARNING: Assignment of 0/1 to bool variable

Reported-by: Tosk Robot <tencent_os_robot@tencent.com>
Signed-off-by: Kaixu Xia <kaixuxia@tencent.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://lore.kernel.org/r/1604732038-6057-1-git-send-email-kaixuxia@tencent.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-09 17:37:53 -08:00
Menglong Dong
6e822c2c29 net: udp: remove redundant initialization in udp_dump_one
The initialization for 'err' with '-EINVAL' is redundant and
can be removed, as it is updated soon and not used.

Signed-off-by: Menglong Dong <dong.menglong@zte.com.cn>
Link: https://lore.kernel.org/r/1604644960-48378-2-git-send-email-dong.menglong@zte.com.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-09 16:42:49 -08:00
Menglong Dong
cffb8f6177 net: udp: remove redundant initialization in udp_send_skb
The initialization for 'err' with 0 is redundant and can be removed,
as it is updated by ip_send_skb and not used before that.

Signed-off-by: Menglong Dong <dong.menglong@zte.com.cn>
Link: https://lore.kernel.org/r/1604644960-48378-4-git-send-email-dong.menglong@zte.com.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-09 16:42:34 -08:00
Horatiu Vultur
0169b82054 bridge: mrp: Use hlist_head instead of list_head for mrp
Replace list_head with hlist_head for MRP list under the bridge.
There is no need for a circular list when a linear list will work.
This will also decrease the size of 'struct net_bridge'.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Link: https://lore.kernel.org/r/20201106215049.1448185-1-horatiu.vultur@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-09 16:42:12 -08:00
Jakub Kicinski
084d0c13a4 Merge branch 'net-packet-make-packet_fanout-arr-size-configurable-up-to-64k'
Tanner Love says:

====================
net/packet: make packet_fanout.arr size configurable up to 64K

First patch makes the change; second patch adds unit tests.
====================

Link: https://lore.kernel.org/r/20201106180741.2839668-1-tannerlove.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-09 16:41:45 -08:00
Tanner Love
1db32acfde selftests/net: test max_num_members, fanout_args in psock_fanout
Add an additional control test that verifies:
-specifying two different max_num_members values fails
-specifying max_num_members > PACKET_FANOUT_MAX fails

In datapath tests, set max_num_members to PACKET_FANOUT_MAX.

Signed-off-by: Tanner Love <tannerlove@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-09 16:41:40 -08:00
Tanner Love
9c661b0b85 net/packet: make packet_fanout.arr size configurable up to 64K
One use case of PACKET_FANOUT is lockless reception with one socket
per CPU. 256 is a practical limit on increasingly many machines.

Increase PACKET_FANOUT_MAX to 64K. Expand setsockopt PACKET_FANOUT to
take an extra argument max_num_members. Also explicitly define a
fanout_args struct, instead of implicitly casting to an integer. This
documents the API and simplifies the control flow.

If max_num_members is not specified or is set to 0, then 256 is used,
same as before.

Signed-off-by: Tanner Love <tannerlove@google.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-09 16:41:40 -08:00