netfilter: nf_tables: add support for matching IPv4 options
This is the kernel change for the overall changes with this description:
Add capability to have rules matching IPv4 options. This is developed
mainly to support dropping of IP packets with loose and/or strict source
route route options.
Signed-off-by: Stephen Suryaputra <ssuryaextr@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
wenxu [Wed, 19 Jun 2019 14:35:07 +0000 (22:35 +0800)]
netfilter: bridge: Fix non-untagged fragment packet
ip netns exec ns1 ip a a dev eth0 10.0.0.7/24
ip netns exec ns2 ip link a link eth0 name vlan type vlan id 200
ip netns exec ns2 ip a a dev vlan 10.0.0.8/24
ip l add dev br0 type bridge vlan_filtering 1
brctl addif br0 veth1
brctl addif br0 veth2
bridge vlan add dev veth1 vid 200 pvid untagged
bridge vlan add dev veth2 vid 200
A two fragment packet sent from ns2 contains the vlan tag 200. In the
bridge conntrack, this packet will defrag to one skb with fraglist.
When the packet is forwarded to ns1 through veth1, the first skb vlan
tag will be cleared by the "untagged" flags. But the vlan tag in the
second skb is still tagged, so the second fragment ends up with tag 200
to ns1. So if the first fragment packet doesn't contain the vlan tag,
all of the remain should not contain vlan tag.
The problem is that it assumes that whenever IPV6 is not a loadable
module, we can call the functions direction. This is clearly
not true when IPV6 is disabled.
There are two other functions defined like this in linux/netfilter_ipv6.h,
so change them all the same way.
Fixes: 764dd163ac92 ("netfilter: nf_conntrack_bridge: add support for IPv6") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
When unregister_net_sysctl_table() is called the ctl_hdr pointer will
obviously be freed and so accessing it righter after is invalid. Fix
this by stashing a pointer to the table we want to free before we
unregister the sysctl header.
Note that syzkaller falsely chased this down to the drm tree so the
Fixes tag that syzkaller requested would be wrong. This commit uses a
different but the correct Fixes tag.
/* Splat */
BUG: KASAN: use-after-free in br_netfilter_sysctl_exit_net
net/bridge/br_netfilter_hooks.c:1121 [inline]
BUG: KASAN: use-after-free in brnf_exit_net+0x38c/0x3a0
net/bridge/br_netfilter_hooks.c:1141
Read of size 8 at addr ffff8880a4078d60 by task kworker/u4:4/8749
Memory state around the buggy address: ffff8880a4078c00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880a4078c80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
> ffff8880a4078d00: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
^ ffff8880a4078d80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880a4078e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
Reported-by: syzbot+43a3fa52c0d9c5c94f41@syzkaller.appspotmail.com Fixes: 22567590b2e6 ("netfilter: bridge: namespace bridge netfilter sysctls") Signed-off-by: Christian Brauner <christian@brauner.io> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Arnd Bergmann [Wed, 19 Jun 2019 12:54:36 +0000 (14:54 +0200)]
netfilter: synproxy: fix building syncookie calls
When either CONFIG_IPV6 or CONFIG_SYN_COOKIES are disabled, the kernel
fails to build:
include/linux/netfilter_ipv6.h:180:9: error: implicit declaration of function '__cookie_v6_init_sequence'
[-Werror,-Wimplicit-function-declaration]
return __cookie_v6_init_sequence(iph, th, mssp);
include/linux/netfilter_ipv6.h:194:9: error: implicit declaration of function '__cookie_v6_check'
[-Werror,-Wimplicit-function-declaration]
return __cookie_v6_check(iph, th, cookie);
net/ipv6/netfilter.c:237:26: error: use of undeclared identifier '__cookie_v6_init_sequence'; did you mean 'cookie_init_sequence'?
net/ipv6/netfilter.c:238:21: error: use of undeclared identifier '__cookie_v6_check'; did you mean '__cookie_v4_check'?
Fix the IS_ENABLED() checks to match the function declaration
and definitions for these.
Fixes: 3006a5224f15 ("netfilter: synproxy: remove module dependency on IPv6 SYNPROXY") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
netfilter: nf_tables: enable set expiration time for set elements
Currently, the expiration of every element in a set or map
is a read-only parameter generated at kernel side.
This change will permit to set a certain expiration date
per element that will be required, for example, during
stateful replication among several nodes.
This patch handles the NFTA_SET_ELEM_EXPIRATION in order
to configure the expiration parameter per element, or
will use the timeout in the case that the expiration
is not set.
Signed-off-by: Laura Garcia Liebana <nevola@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Colin Ian King [Tue, 18 Jun 2019 14:22:44 +0000 (15:22 +0100)]
netfilter: synproxy: ensure zero is returned on non-error return path
Currently functions nf_synproxy_{ipc4|ipv6}_init return an uninitialized
garbage value in variable ret on a successful return. Fix this by
returning zero on success.
Addresses-Coverity: ("Uninitialized scalar variable") Fixes: d7f9b2f18eae ("netfilter: synproxy: extract SYNPROXY infrastructure from {ipt, ip6t}_SYNPROXY") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
netfilter: synproxy: extract SYNPROXY infrastructure from {ipt, ip6t}_SYNPROXY
Add common functions into nf_synproxy_core.c to prepare for nftables support.
The prototypes of the functions used by {ipt, ip6t}_SYNPROXY are in the new
file nf_synproxy.h
Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
netfilter: synproxy: remove module dependency on IPv6 SYNPROXY
This is a prerequisite for the infrastructure module NETFILTER_SYNPROXY.
The new module is needed to avoid duplicated code for the SYNPROXY
nftables support.
Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Merge branch 'master' of git://blackhole.kfki.hu/nf-next
Jozsef Kadlecsik says:
====================
ipset patches for nf-next
- Remove useless memset() calls, nla_parse_nested/nla_parse
erase the tb array properly, from Florent Fourcot.
- Merge the uadd and udel functions, the code is nicer
this way, also from Florent Fourcot.
- Add a missing check for the return value of a
nla_parse[_deprecated] call, from Aditya Pakki.
- Add the last missing check for the return value
of nla_parse[_deprecated] call.
- Fix error path and release the references properly
in set_target_v3_checkentry().
- Fix memory accounting which is reported to userspace
for hash types on resize, from Stefano Brivio.
- Update my email address to kadlec@netfilter.org.
The patch covers all places in the source tree where
my kadlec@blackhole.kfki.hu address could be found.
====================
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Currently, the /proc/sys/net/bridge folder is only created in the initial
network namespace. This patch ensures that the /proc/sys/net/bridge folder
is available in each network namespace if the module is loaded and
disappears from all network namespaces when the module is unloaded.
apply per network namespace. This unblocks some use-cases where users would
like to e.g. not do bridge filtering for bridges in a specific network
namespace while doing so for bridges located in another network namespace.
The netfilter rules are afaict already per network namespace so it should
be safe for users to specify whether bridge devices inside a network
namespace are supposed to go through iptables et al. or not. Also, this can
already be done per-bridge by setting an option for each individual bridge
via Netlink. It should also be possible to do this for all bridges in a
network namespace via sysctls.
Cc: Tyler Hicks <tyhicks@canonical.com> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
netfilter: conntrack: small conntrack lookup optimization
____nf_conntrack_find() performs checks on the conntrack objects in
this order:
1. if (nf_ct_is_expired(ct))
This fetches ct->timeout, in third cache line.
The hnnode that is used to store the list pointers resides in the first
(origin) or second (reply tuple) cache lines.
This test rarely passes, but its necessary to reap obsolete entries.
2. if (nf_ct_is_dying(ct))
This fetches ct->status, also in third cache line.
The test is useless, and can be removed:
Consider:
cpu0 cpu1
ct = ____nf_conntrack_find()
atomic_inc_not_zero(ct) -> ok
nf_ct_key_equal -> ok
is_dying -> DYING bit not set, ok
set_bit(ct, DYING);
... unhash ... etc.
return ct
-> returning a ct with dying bit set, despite
having a test for it.
This (unlikely) case is fine - refcount prevents ct from getting free'd.
3. if (nf_ct_key_equal(h, tuple, zone, net))
nf_ct_key_equal checks in following order:
1. Tuple equal (first or second cacheline)
2. Zone equal (third cacheline)
3. confirmed bit set (->status, third cacheline)
4. net namespace match (third cacheline).
Swapping "timeout" and "cpu" places timeout in the first cacheline.
This has two advantages:
1. For a conntrack that won't even match the original tuple,
we will now only fetch the first and maybe the second cacheline
instead of always accessing the 3rd one as well.
2. in case of TCP ct->timeout changes frequently because we
reduce/increase it when there are packets outstanding in the network.
The first cacheline contains both the reference count and the ct spinlock,
i.e. moving timeout there avoids writes to 3rd cacheline.
The restart sequence in __nf_conntrack_find() is removed, if we found a
candidate, but then fail to increment the refcount or discover the tuple
has changed (object recycling), just pretend we did not find an entry.
A second lookup won't find anything until another CPU adds a new conntrack
with identical tuple into the hash table, which is very unlikely.
We have the confirmation-time checks (when we hold hash lock) that deal
with identical entries and even perform clash resolution in some cases.
Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Stéphane Veyret [Sat, 25 May 2019 13:30:58 +0000 (15:30 +0200)]
netfilter: nft_ct: add ct expectations support
This patch allows to add, list and delete expectations via nft objref
infrastructure and assigning these expectations via nft rule.
This allows manual port triggering when no helper is defined to manage a
specific protocol. For example, if I have an online game which protocol
is based on initial connection to TCP port 9753 of the server, and where
the server opens a connection to port 9876, I can set rules as follow:
Stefano Brivio [Sun, 26 May 2019 21:14:06 +0000 (23:14 +0200)]
ipset: Fix memory accounting for hash types on resize
If a fresh array block is allocated during resize, the current in-memory
set size should be increased by the size of the block, not replaced by it.
Before the fix, adding entries to a hash set type, leading to a table
resize, caused an inconsistent memory size to be reported. This becomes
more obvious when swapping sets with similar sizes:
# cat hash_ip_size.sh
#!/bin/sh
FAIL_RETRIES=10
tries=0
while [ ${tries} -lt ${FAIL_RETRIES} ]; do
ipset create t1 hash:ip
for i in `seq 1 4345`; do
ipset add t1 1.2.$((i / 255)).$((i % 255))
done
t1_init="$(ipset list t1|sed -n 's/Size in memory: \(.*\)/\1/p')"
ipset create t2 hash:ip
for i in `seq 1 4360`; do
ipset add t2 1.2.$((i / 255)).$((i % 255))
done
t2_init="$(ipset list t2|sed -n 's/Size in memory: \(.*\)/\1/p')"
ipset swap t1 t2
t1_swap="$(ipset list t1|sed -n 's/Size in memory: \(.*\)/\1/p')"
t2_swap="$(ipset list t2|sed -n 's/Size in memory: \(.*\)/\1/p')"
Florent Fourcot [Mon, 10 Jun 2019 10:28:58 +0000 (12:28 +0200)]
netfilter: ipset: remove useless memset() calls
One of the memset call is buggy: it does not erase full array, but only pointer size.
Moreover, after a check, first step of nla_parse_nested/nla_parse is to
erase tb array as well. We can remove both calls safely.
Zhiqiang Liu [Wed, 5 Jun 2019 10:49:49 +0000 (18:49 +0800)]
inet_connection_sock: remove unused parameter of reqsk_queue_unlink func
small cleanup: "struct request_sock_queue *queue" parameter of reqsk_queue_unlink
func is never used in the func, so we can remove it.
Signed-off-by: Zhiqiang Liu <liuzhiqiang26@huawei.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Heiner Kallweit [Tue, 4 Jun 2019 21:02:34 +0000 (23:02 +0200)]
net: phy: remove state PHY_FORCING
In the early days of phylib we had a functionality that changed to the
next lower speed in fixed mode if no link was established after a
certain period of time. This functionality has been removed years ago,
and state PHY_FORCING isn't needed any longer. Instead we can go from
UP to RUNNING or NOLINK directly (same as in autoneg mode).
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Zhu Yanjun [Mon, 3 Jun 2019 04:28:01 +0000 (00:28 -0400)]
net: rds: add per rds connection cache statistics
The variable cache_allocs is to indicate how many frags (KiB) are in one
rds connection frag cache.
The command "rds-info -Iv" will output the rds connection cache
statistics as below:
"
RDS IB Connections:
LocalAddr RemoteAddr Tos SL LocalDev RemoteDev
1.1.1.14 1.1.1.14 58 255 fe80::2:c903:a:7a31 fe80::2:c903:a:7a31
send_wr=256, recv_wr=1024, send_sge=8, rdma_mr_max=4096,
rdma_mr_size=257, cache_allocs=12
"
This means that there are about 12KiB frag in this rds connection frag
cache.
Since rds.h in rds-tools is not related with the kernel rds.h, the change
in kernel rds.h does not affect rds-tools.
rds-info in rds-tools 2.0.5 and 2.0.6 is tested with this commit. It works
well.
Signed-off-by: Zhu Yanjun <yanjun.zhu@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 6 Jun 2019 00:03:14 +0000 (17:03 -0700)]
Merge branch 'dwmac-mediatek'
Biao Huang says:
====================
complete dwmac-mediatek driver and fix flow control issue
Changes in v2:
patch#1: there is no extra action in mediatek_dwmac_remove, remove it
v1:
This series mainly complete dwmac-mediatek driver:
1. add power on/off operations for dwmac-mediatek.
2. disable rx watchdog to reduce rx path reponding time.
3. change the default value of tx-frames from 25 to 1, so
ptp4l will test pass by default.
and also fix the issue that flow control won't be disabled any more
once being enabled.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Biao Huang [Mon, 3 Jun 2019 01:58:06 +0000 (09:58 +0800)]
net: stmmac: dwmac4: fix flow control issue
Current dwmac4_flow_ctrl will not clear
GMAC_RX_FLOW_CTRL_RFE/GMAC_RX_FLOW_CTRL_RFE bits,
so MAC hw will keep flow control on although expecting
flow control off by ethtool. Add codes to fix it.
Fixes: 477286b53f55 ("stmmac: add GMAC4 core support") Signed-off-by: Biao Huang <biao.huang@mediatek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Biao Huang [Mon, 3 Jun 2019 01:58:05 +0000 (09:58 +0800)]
net: stmmac: modify default value of tx-frames
the default value of tx-frames is 25, it's too late when
passing tstamp to stack, then the ptp4l will fail:
ptp4l -i eth0 -f gPTP.cfg -m
ptp4l: selected /dev/ptp0 as PTP clock
ptp4l: port 1: INITIALIZING to LISTENING on INITIALIZE
ptp4l: port 0: INITIALIZING to LISTENING on INITIALIZE
ptp4l: port 1: link up
ptp4l: timed out while polling for tx timestamp
ptp4l: increasing tx_timestamp_timeout may correct this issue,
but it is likely caused by a driver bug
ptp4l: port 1: send peer delay response failed
ptp4l: port 1: LISTENING to FAULTY on FAULT_DETECTED (FT_UNSPECIFIED)
ptp4l tests pass when changing the tx-frames from 25 to 1 with
ethtool -C option.
It should be fine to set tx-frames default value to 1, so ptp4l will pass
by default.
Signed-off-by: Biao Huang <biao.huang@mediatek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Biao Huang [Mon, 3 Jun 2019 01:58:04 +0000 (09:58 +0800)]
net: stmmac: dwmac-mediatek: disable rx watchdog
disable rx watchdog for dwmac-mediatek, then the hw will
issue a rx interrupt once receiving a packet, so the responding time
for rx path will be reduced.
Signed-off-by: Biao Huang <biao.huang@mediatek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Lihong Yang [Wed, 5 Jun 2019 19:45:16 +0000 (12:45 -0700)]
i40e: Check and set the PF driver state first in i40e_ndo_set_vf_mac
The PF driver state flag __I40E_VIRTCHNL_OP_PENDING needs to be
checked and set at the beginning of i40e_ndo_set_vf_mac. Otherwise,
if there are error conditions before it, the flag will be cleared
unexpectedly by this function to cause potential race conditions.
Hence move the check to the top of this function.
Signed-off-by: Lihong Yang <lihong.yang@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Lihong Yang [Wed, 5 Jun 2019 19:45:15 +0000 (12:45 -0700)]
i40e: Do not check VF state in i40e_ndo_get_vf_config
The VF configuration returned in i40e_ndo_get_vf_config is
already stored by the PF. There is no dependency on any
specific state of the VF to return the configuration.
Drop the check against I40E_VF_STATE_INIT since it is not
needed.
Signed-off-by: Lihong Yang <lihong.yang@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 5 Jun 2019 23:44:14 +0000 (16:44 -0700)]
Merge branch '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:
====================
10GbE Intel Wired LAN Driver Updates 2019-06-05
This series contains updates to mainly ixgbe, with a few updates to
i40e, net, ice and hns2 driver.
Jan adds support for tracking each queue pair for whether or not AF_XDP
zero copy is enabled. Also updated the ixgbe driver to use the
netdev-provided umems so that we do not need to contain these structures
in our own adapter structure.
William Tu provides two fixes for AF_XDP statistics which were causing
incorrect counts.
Jake reduces the PTP transmit timestamp timeout from 15 seconds to 1 second,
which is still well after the maximum expected delay. Also fixes an
issues with the PTP SDP pin setup which was not properly aligning on a
full second, so updated the code to account for the cyclecounter
multiplier and simplify the code to make the intent of the calculations
more clear. Updated the function header comments to help with the code
documentation. Added support for SDP/PPS output for x550 devices, which
is slightly different than x540 devices that currently have this
support.
Anirudh adds a new define for Link Layer Discovery Protocol to the
networking core, so that drivers do not have to create and use their own
definitions. In addition, update all the drivers currently defining
their own LLDP define to use the new networking core define.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jacob Keller [Fri, 12 Apr 2019 15:33:19 +0000 (08:33 -0700)]
ixgbe: implement support for SDP/PPS output on X550 hardware
Similar to the X540 hardware, enable support for generating a 1pps
output signal on SDP0.
This support is slightly different to the X540 hardware, because of the
register layout changes. First, the system time register is now
represented in 'cycles' and 'billions of cycles'. Second, we need to
also program the TSSDP register, as well as the ESDP register. Third,
the clock output uses only FREQOUT, instead of a full 64bit value for
the output clock period. Finally, we have to use the ST0 bit instead of
the SYNCLK bit in the TSAUXC register.
This support should work even for the hardware with a higher frequency
clock, as it carefully takes into account the multiply and shift of the
cycle counter used.
We also set the pps configuration to 1, since we now support generating
a pulse per second output.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Add a new define ETH_P_LLDP for Link Layer Discovery Protocol (LLDP)
ethertype.
Suggested-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Mon, 8 Apr 2019 23:52:02 +0000 (16:52 -0700)]
ixgbe: add a kernel documentation comment for ixgbe_ptp_get_ts_config
This function was missing a documentation comment. Add one now.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Mon, 8 Apr 2019 23:52:01 +0000 (16:52 -0700)]
ixgbe: use 'cc' instead of 'hw_cc' for local variable
The ixgbe_ptp.c file sometimes uses hw_cc as the local variable for the
cycle counter in ixgbe_ptp_read_X550. However, we use just 'cc' as
a local variable for this by convention else where in the file.
Convert this lone usage of 'hw_cc' into just the shorter 'cc' name to
match the other read functions in the file.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Mon, 8 Apr 2019 23:51:59 +0000 (16:51 -0700)]
ixgbe: fix PTP SDP pin setup on X540 hardware
The function ixgbe_ptp_setup_sdp_X540 attempts to program a software
defined pin, in order to generate a pulse-per-second output on SDP 0.
It does work to generate the output, but does not align the output on
the full second. Additionally, it does not take into account the
cyclecounter multiplier. This leads to somewhat confusing code which is
likely to be incorrect if blindly copied to another hardware type.
Update this code to account for the cyclecounter multiplier, and to
directly use timecounter_read.
This change ensures that the SDP output will align properly on a full
second, and makes the intent of the calculations a bit more clear.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Mon, 8 Apr 2019 23:51:58 +0000 (16:51 -0700)]
ixgbe: reduce PTP Tx timestamp timeout to 1 second
Previously we waited for a whole 15 seconds before we cleared the Tx
timestamp state. This is astronomically long compared to the worst case
timings expected by our devices. In addition, this is longer than the
wait in ptp4l when it detects a fault (caused by missing Tx timestamps).
Thus, reduce the timer to only 1 second, which is well after the maximum
expected delay. This should reduce user frustration when a timestamp
does get dropped for some reason.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
William Tu [Thu, 4 Apr 2019 16:36:55 +0000 (09:36 -0700)]
ixgbe: fix AF_XDP tx packet count
The total_packets count at ixgbe_clean_xdp_tx_irq is
always zero when testing with xdpsock -t -N. Set the gso_segs
to 1 to make the tx packet count correct.
Signed-off-by: William Tu <u9012063@gmail.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
William Tu [Thu, 4 Apr 2019 16:36:54 +0000 (09:36 -0700)]
ixgbe: fix AF_XDP tx byte count
The tx bytecount is done twice. When running
'./xdpsock -t -N -i eth3' and 'ip -s link show dev eth3'
The avg packet size is 120 instead of 60. So remove the
extra one.
Signed-off-by: William Tu <u9012063@gmail.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jan Sokolowski [Fri, 22 Mar 2019 21:16:38 +0000 (14:16 -0700)]
ixgbe: remove umem from adapter
As current implementation of netdev already contains and provides
umems for us, we no longer have the need to contain these
structures in ixgbe_adapter.
Refactor the code to operate on netdev-provided umems.
Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jan Sokolowski [Fri, 22 Mar 2019 21:16:37 +0000 (14:16 -0700)]
ixgbe: add tracking of AF_XDP zero-copy state for each queue pair
Here, we add a bitmap to the ixgbe_adapter that tracks if a
certain queue pair has been "zero-copy enabled" via the ndo_bpf.
The bitmap is used in ixgbe_xsk_umem, and enables zero-copy if
and only if XDP is enabled, the corresponding qid in the bitmap
is set, and the umem is non-NULL;
Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
David S. Miller [Wed, 5 Jun 2019 18:41:59 +0000 (11:41 -0700)]
Merge branch 'r8169-factor-out-firmware-handling'
Heiner Kallweit says:
====================
r8169: factor out firmware handling
Let's factor out firmware handling into a separate source code file.
This simplifies reading the code and makes clearer what the interface
between driver and firmware handling is.
v2:
- fix small whitespace issue in patch 2
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Heiner Kallweit [Wed, 5 Jun 2019 06:02:31 +0000 (08:02 +0200)]
r8169: factor out firmware handling
Let's factor out firmware handling into a separate source code file.
This simplifies reading the code and makes clearer what the interface
between driver and firmware handling is.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
It looks like these 3 source files were meant to be linked together
since 2 of them are library-like functions,
but they are currently being built as 3 loadable modules.
This changes the loadable module name from mtk_eth_soc to mtk_eth.
I didn't see a way to leave it as mtk_eth_soc.
Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Sean Wang <sean.wang@mediatek.com> Cc: John Crispin <blogic@openwrt.org> Cc: Felix Fietkau <nbd@openwrt.org> Cc: Nelson Chang <nelson.chang@mediatek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
====================
net: dsa: mv88e6xxx: support for mv88e6250
This adds support for the mv88e6250 chip. Initially based on the
mv88e6240, this time around, I've been through each ->ops callback and
checked that it makes sense, either replacing with a 6250 specific
variant or dropping it if no equivalent functionality seems to exist
for the 6250. Along the way, I found a few oddities in the existing
code, mostly sent as separate patches/questions.
The one relevant to the 6250 is the ieee_pri_map callback, where the
existing mv88e6085_g1_ieee_pri_map() is actually wrong for many of the
existing users. I've put the mv88e6250_g1_ieee_pri_map() patch first
in case some of the existing chips get switched over to use that and
it is deemed important enough for -stable.
v4:
- fix style issue in 1/10
- add Andrew's reviewed-by to 1,6,7,8,9,10.
v3:
- rebase on top of net-next/master
- add reviewed-bys to patches unchanged from v2 (2,3,4,5)
- add 6250-specific ->ieee_pri_map, ->port_set_speed, ->port_link_state (1,6,7)
- in addition, use mv88e6065_phylink_validate for ->phylink_validate,
and don't implement ->port_get_cmode, ->port_set_jumbo_size,
->port_disable_learn_limit, ->rmu_disable
- drop ptp support
- add patch adding the compatible string to the DT binding (9)
- add small refactoring patch (10)
v2:
- rebase on top of net-next/master
- add reviewed-by to two patches unchanged from v1 (2,3)
- add separate watchdog_ops
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The new mv88e6250_g1_reset() is identical to mv88e6352_g1_reset() except
for the call of mv88e6352_g1_wait_ppu_polling(), so refactor the 6352
version in term of the 6250 one. No functional change.
Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
The mv88e6250 has port_base_addr 0x8 or 0x18 (depending on
configuration pins), so it constitutes a new family and hence needs
its own compatible string.
Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
This adds support for the Marvell 88E6250. I've checked that each
member in the ops-structure makes sense, and basic switchdev
functionality works fine.
It uses the new dual_chip option, and since its port registers start
at SMI address 0x08 or 0x18 (i.e., always sw_addr + 0x08), we need to
introduce a new compatible string in order for the auto-identification
in mv88e6xxx_detect() to work.
The chip has four per port 16-bits statistics registers, two of which
correspond to the existing "sw_in_filtered" and "sw_out_filtered" (but
at offsets 0x13 and 0x10 rather than 0x12 and 0x13, because why should
this be easy...). Wiring up those four statistics seems to require
introducing a STATS_TYPE_PORT_6250 bit or similar, which seems a tad
ugly, so for now this just allows access to the STATS_TYPE_BANK0 ones.
The chip does have ptp support, and the existing
mv88e6352_{gpio,avb,ptp}_ops at first glance seem like they would work
out-of-the-box, but for simplicity (and lack of testing) I'm eliding
this.
Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
net: dsa: mv88e6xxx: implement port_link_state for mv88e6250
The mv88e6250 has a rather different way of reporting the link, speed
and duplex status. A simple difference is that the link bit is bit 12
rather than bit 11 of the port status register.
It gets more complicated for speed and duplex, which do not have
separate fields. Instead, there's a four-bit PortMode field, and
decoding that depends on whether it's a phy or mii port. For the phy
ports, only four of the 16 values have defined meaning; the rest are
called "reserved", so returning {SPEED,DUPLEX}_UNKNOWN seems
reasonable.
For the mii ports, most possible values are documented (0x3 and 0x5
are reserved), but I'm unable to make sense of them all. Since the
bits simply reflect the Px_MODE[3:0] configuration pins, just support
the subset that I'm certain about. Support for other setups can be
added later.
Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
net: dsa: mv88e6xxx: implement port_set_speed for mv88e6250
The data sheet also mentions the possibility of selecting 200 Mbps for
the MII ports (ports 5 and 6) by setting the ForceSpd field to
0x2 (aka MV88E6065_PORT_MAC_CTL_SPEED_200). However, there's a note
that "actual speed is determined by bit 8 above", and flipping back a
page, one finds that bits 13:8 are reserved...
So without further information on what bit 8 means, let's stick to
supporting just 10 and 100 Mbps on all ports.
Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
net: dsa: mv88e6xxx: implement watchdog_ops for mv88e6250
The MV88E6352_G2_WDOG_CTL_* bits almost, but not quite, describe the
watchdog control register on the mv88e6250. Among those actually
referenced in the code, only QC_ENABLE differs (bit 6 rather than bit
5).
Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com> Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
net: dsa: mv88e6xxx: implement vtu_getnext and vtu_loadpurge for mv88e6250
These are almost identical to the 6185 variants, but have fewer bits
for the FID.
Bit 10 of the VTU_OP register (offset 0x05) is the VidPolicy bit,
which one should probably preserve in mv88e6xxx_g1_vtu_op(), instead
of always writing a 0. However, on the 6352 family, that bit is
located at bit 12 in the VTU FID register (offset 0x02), and is always
unconditionally cleared by the mv88e6xxx_g1_vtu_fid_write()
function.
Since nothing in the existing driver seems to know or care about that
bit, it seems reasonable to not add the boilerplate to preserve it for
the 6250 (which would require adding a chip-specific vtu_op function,
or adding chip-quirks to the existing one).
Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com> Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
net: dsa: mv88e6xxx: prepare mv88e6xxx_g1_atu_op() for the mv88e6250
All the currently supported chips have .num_databases either 256 or
4096, so this patch does not change behaviour for any of those. The
mv88e6250, however, has .num_databases == 64, and it does not put the
upper two bits in ATU control 13:12, but rather in ATU Operation
9:8. So change the logic to prepare for supporting mv88e6250.
Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com> Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
net: dsa: mv88e6xxx: introduce support for two chips using direct smi addressing
The 88e6250 (as well as 6220, 6071, 6070, 6020) do not support
multi-chip (indirect) addressing. However, one can still have two of
them on the same mdio bus, since the device only uses 16 of the 32
possible addresses, either addresses 0x00-0x0F or 0x10-0x1F depending
on the ADDR4 pin at reset [since ADDR4 is internally pulled high, the
latter is the default].
In order to prepare for supporting the 88e6250 and friends, introduce
mv88e6xxx_info::dual_chip to allow having a non-zero sw_addr while
still using direct addressing.
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
Quite a few of the existing supported chips that use
mv88e6085_g1_ieee_pri_map as ->ieee_pri_map (including, incidentally,
mv88e6085 itself) actually have a reset value of 0xfa50 in the
G1_IEEE_PRI register.
The data sheet for the mv88e6095, however, does describe a reset value
of 0xfa41.
So rather than changing the value in the existing callback, introduce
a new variant with the 0xfa50 value. That will be used by the upcoming
mv88e6250, and existing chips can be switched over one by one,
preferably double-checking both the data sheet and actual hardware in
each case - if anybody actually feels this is important enough to
care.
Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
Ronak Doshi [Tue, 4 Jun 2019 06:58:38 +0000 (23:58 -0700)]
vmxnet3: turn off lro when rxcsum is disabled
Currently, when rx csum is disabled, vmxnet3 driver does not turn
off lro, which can cause performance issues if user does not turn off
lro explicitly. This patch adds fix_features support which is used to
turn off LRO whenever RXCSUM is disabled.
Signed-off-by: Ronak Doshi <doshir@vmware.com> Acked-by: Rishi Mehta <rmehta@vmware.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 5 Jun 2019 02:26:50 +0000 (19:26 -0700)]
Merge branch 'net-add-struct-nexthop-to-fib-info'
David Ahern says:
====================
net: add struct nexthop to fib{6}_info
Set 10 of 11 to improve route scalability via support for nexthops as
standalone objects for fib entries.
https://lwn.net/Articles/763950/
This sets adds 'struct nexthop' to fib_info and fib6_info. IPv4
already handles multiple fib_nh entries in a single fib_info, so
the conversion to use a nexthop struct is fairly mechanical. IPv6
using a nexthop struct with a fib6_info impacts a lot of core logic
which is built around the assumption of a single, builtin fib6_nh
per fib6_info. To make this easier to review, this set adds
nexthop to fib6_info and adds checks in most places fib6_info is
used. The next set finishes the IPv6 conversion, walking through
the places that need to consider all fib6_nh within a nexthop struct.
Offload drivers - mlx5, mlxsw and rocker - are changed to fail FIB
entries using nexthop objects. That limitation can be removed once
the drivers are updated to properly support separate nexthops.
This set starts by adding accessors for fib_nh and fib_nhs in a
fib_info. This makes it easier to extract the number of nexthops
in the fib entry and a specific fib_nh once the entry references
a struct nexthop. Patch 2 converts more of IPv4 code to use
fib_nh_common allowing a struct nexthop to use a fib6_nh with an
IPv4 entry.
Patches 3 and 4 add 'struct nexthop' to fib{6}_info and update
references to both take a different path when it is set. New
exported functions are added to the nexthop code to validate a
nexthop struct when configured for use with a fib entry. IPv4
is allowed to use a nexthop with either v4 or v6 entries. IPv6
is limited to v6 entries only. In both cases list_heads track
the fib entries using a nexthop struct for fast correlation on
events (e.g., device events or nexthop events like delete or
replace).
The last 3 patches add hooks to drivers listening for FIB
notificationas. All 3 of them reject the routes as unsupported,
returning an error message to the user via extack. For mlxsw
at least this is a stop gap measure until the driver is updated for
proper support.
Functional tests for nexthops have already been committed. Those tests
will be active after the next patch set which makes the code paths
created by this set and the next one live.
Existing code paths moved to the else branch of 'if (f{6}i->nh)' checks
are covered by existing tests under selftests/net.
v3
- remove ip6_create_rt_rcu from ip6_pol_route in patch 4 and use pcpu
routes for REJECT routes with the blackhole nexthop (request from Wei)
v2
- no code changes from v1
- commit messages for first 4 patches updated
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
David Ahern [Tue, 4 Jun 2019 03:19:52 +0000 (20:19 -0700)]
ipv6: Plumb support for nexthop object in a fib6_info
Add struct nexthop and nh_list list_head to fib6_info. nh_list is the
fib6_info side of the nexthop <-> fib_info relationship. Since a fib6_info
referencing a nexthop object can not have 'sibling' entries (the old way
of doing multipath routes), the nh_list is a union with fib6_siblings.
Add f6i_list list_head to 'struct nexthop' to track fib6_info entries
using a nexthop instance. Update __remove_nexthop_fib to walk f6_list
and delete fib entries using the nexthop.
Add a few nexthop helpers for use when a nexthop is added to fib6_info:
- nexthop_fib6_nh - return first fib6_nh in a nexthop object
- fib6_info_nh_dev moved to nexthop.h and updated to use nexthop_fib6_nh
if the fib6_info references a nexthop object
- nexthop_path_fib6_result - similar to ipv4, select a path within a
multipath nexthop object. If the nexthop is a blackhole, set
fib6_result type to RTN_BLACKHOLE, and set the REJECT flag
Update the fib6_info references to check for nh and take a different path
as needed:
- rt6_qualify_for_ecmp - if a fib entry uses a nexthop object it can NOT
be coalesced with other fib entries into a multipath route
- rt6_duplicate_nexthop - use nexthop_cmp if either fib6_info references
a nexthop
- addrconf (host routes), RA's and info entries (anything configured via
ndisc) does not use nexthop objects
- fib6_info_destroy_rcu - put reference to nexthop object
- fib6_purge_rt - drop fib6_info from f6i_list
- fib6_select_path - update to use the new nexthop_path_fib6_result when
fib entry uses a nexthop object
- rt6_device_match - update to catch use of nexthop object as a blackhole
and set fib6_type and flags.
- ip6_route_info_create - don't add space for fib6_nh if fib entry is
going to reference a nexthop object, take a reference to nexthop object,
disallow use of source routing
- rt6_nlmsg_size - add space for RTA_NH_ID
- add rt6_fill_node_nexthop to add nexthop data on a dump
As with ipv4, most of the changes push existing code into the else branch
of whether the fib entry uses a nexthop object.
Update the nexthop code to walk f6i_list on a nexthop deleted to remove
fib entries referencing it.
Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David Ahern [Tue, 4 Jun 2019 03:19:51 +0000 (20:19 -0700)]
ipv4: Plumb support for nexthop object in a fib_info
Add 'struct nexthop' and nh_list list_head to fib_info. nh_list is the
fib_info side of the nexthop <-> fib_info relationship.
Add fi_list list_head to 'struct nexthop' to track fib_info entries
using a nexthop instance. Add __remove_nexthop_fib and add it to
__remove_nexthop to walk the new list_head and mark those fib entries
as dead when the nexthop is deleted.
Add a few nexthop helpers for use when a nexthop is added to fib_info:
- nexthop_cmp to determine if 2 nexthops are the same
- nexthop_path_fib_result to select a path for a multipath
'struct nexthop'
- nexthop_fib_nhc to select a specific fib_nh_common within a
multipath 'struct nexthop'
Update existing fib_info_nhc to use nexthop_fib_nhc if a fib_info uses
a 'struct nexthop', and mark fib_info_nh as only used for the non-nexthop
case.
Update the fib_info functions to check for fi->nh and take a different
path as needed:
- free_fib_info_rcu - put the nexthop object reference
- fib_release_info - remove the fib_info from the nexthop's fi_list
- nh_comp - use nexthop_cmp when either fib_info references a nexthop
object
- fib_info_hashfn - use the nexthop id for the hashing vs the oif of
each fib_nh in a fib_info
- fib_nlmsg_size - add space for the RTA_NH_ID attribute
- fib_create_info - verify nexthop reference can be taken, verify
nexthop spec is valid for fib entry, and add fib_info to fi_list for
a nexthop
- fib_select_multipath - use the new nexthop_path_fib_result to select a
path when nexthop objects are used
- fib_table_lookup - if the 'struct nexthop' is a blackhole nexthop, treat
it the same as a fib entry using 'blackhole'
The bulk of the changes are in fib_semantics.c and most of that is
moving the existing change_nexthops into an else branch.
Update the nexthop code to walk fi_list on a nexthop deleted to remove
fib entries referencing it.
Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David Ahern [Tue, 4 Jun 2019 03:19:50 +0000 (20:19 -0700)]
ipv4: Prepare for fib6_nh from a nexthop object
Convert more IPv4 code to use fib_nh_common over fib_nh to enable routes
to use a fib6_nh based nexthop. In the end, only code not using a
nexthop object in a fib_info should directly access fib_nh in a fib_info
without checking the famiy and going through fib_nh_common. Those
functions will be marked when it is not directly evident.
Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
where fib_info_nh(fi, i) returns fi->fib_nh[nhsel] and fib_info_num_path
returns fi->fib_nhs.
Move the existing fib_info_nhc to nexthop.h and define the new ones
there. A later patch adds a check if a fib_info uses a nexthop object,
and defining the helpers in nexthop.h avoid circular header
dependencies.
After this all remaining open coded references to fi->fib_nhs and
fi->fib_nh are in:
- fib_create_info and helpers used to lookup an existing fib_info
entry, and
- the netdev event functions fib_sync_down_dev and fib_sync_up.
The latter two will not be reused for nexthops, and the fib_create_info
will be updated to handle a nexthop in a fib_info.
Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David Ahern [Tue, 4 Jun 2019 01:37:03 +0000 (18:37 -0700)]
ipv6: Always allocate pcpu memory in a fib6_nh
A recent commit had an unintended side effect with reject routes:
rt6i_pcpu is expected to always be initialized for all fib6_info except
the null entry. The commit mentioned below skips it for reject routes
and ends up leaking references to the loopback device. For example,
ip netns add foo
ip -netns foo li set lo up
ip -netns foo -6 ro add blackhole 2001:db8:1::1
ip netns exec foo ping6 2001:db8:1::1
ip netns del foo
ends up spewing:
unregister_netdevice: waiting for lo to become free. Usage count = 3
The fib_nh_common_init is not needed for reject routes (no ipv4 caching
or encaps), so move the alloc_percpu_gfp after it and adjust the goto label.
Fixes: f40b6ae2b612 ("ipv6: Move pcpu cached routes to fib6_nh") Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 4 Jun 2019 21:49:38 +0000 (14:49 -0700)]
Merge branch 'bond-mpls'
Ariel Levkovich says:
====================
Support MPLS features in bonding and vlan net devices
Netdevice HW MPLS features are not passed from device driver's netdevice to
upper netdevice, specifically VLAN and bonding netdevice which are created
by the kernel when needed.
This prevents enablement and usage of HW offloads, such as TSO and checksumming
for MPLS tagged traffic when running via VLAN or bonding interface.
The patches introduce changes to the initialization steps of the VLAN and bonding
netdevices to inherit the MPLS features from lower netdevices to allow the HW
offloads.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Ariel Levkovich [Mon, 3 Jun 2019 22:36:47 +0000 (22:36 +0000)]
net: vlan: Inherit MPLS features from parent device
During the creation of the VLAN interface net device,
the various device features and offloads are being set based
on the parent device's features.
The code initiates the basic, vlan and encapsulation features
but doesn't address the MPLS features set and they remain blank.
As a result, all device offloads that have significant performance
effect are disabled for MPLS traffic going via this VLAN device such
as checksumming and TSO.
This patch makes sure that MPLS features are also set for the
VLAN device based on the parent which will allow HW offloads of
checksumming and TSO to be performed on MPLS tagged packets.
Signed-off-by: Ariel Levkovich <lariel@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ariel Levkovich [Mon, 3 Jun 2019 22:36:46 +0000 (22:36 +0000)]
net: bonding: Inherit MPLS features from slave devices
When setting the bonding interface net device features,
the kernel code doesn't address the slaves' MPLS features
and doesn't inherit them.
Therefore, HW offloads that enhance performance such as
checksumming and TSO are disabled for MPLS tagged traffic
flowing via the bonding interface.
The patch add the inheritance of the MPLS features from the
slave devices with a similar logic to setting the bonding device's
VLAN and encapsulation features.
CC: Jay Vosburgh <j.vosburgh@gmail.com> CC: Veaceslav Falico <vfalico@gmail.com> CC: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Ariel Levkovich <lariel@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 4 Jun 2019 21:33:50 +0000 (14:33 -0700)]
Merge branch 'net-tls-small-general-improvements'
Jakub Kicinski says:
====================
net/tls: small general improvements
This series cleans up and improves the tls code, mostly the offload
parts.
First a slight performance optimization - avoiding unnecessary re-
-encryption of records in patch 1. Next patch 2 makes the code
more resilient by checking for errors in skb_copy_bits(). Next
commit removes a warning which can be triggered in normal operation,
(especially for devices explicitly making use of the fallback path).
Next two paths change the condition checking around the call to
tls_device_decrypted() to make it easier to extend. Remaining
commits are centered around reorganizing struct tls_context for
better cache utilization.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Mon, 3 Jun 2019 22:17:05 +0000 (15:17 -0700)]
net/tls: don't pass version to tls_advance_record_sn()
All callers pass prot->version as the last parameter
of tls_advance_record_sn(), yet tls_advance_record_sn()
itself needs a pointer to prot. Pass prot from callers.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Mon, 3 Jun 2019 22:17:04 +0000 (15:17 -0700)]
net/tls: reorganize struct tls_context
struct tls_context is slightly badly laid out. If we reorder things
right we can save 16 bytes (320 -> 304) but also make all fast path
data fit into two cache lines (one read only and one read/write,
down from four cache lines).
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Mon, 3 Jun 2019 22:17:03 +0000 (15:17 -0700)]
net/tls: use version from prot
ctx->prot holds the same information as per-direction contexts.
Almost all code gets TLS version from this structure, convert
the last two stragglers, this way we can improve the cache
utilization by moving the per-direction data into cold cache lines.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Mon, 3 Jun 2019 22:17:02 +0000 (15:17 -0700)]
net/tls: don't re-check msg decrypted status in tls_device_decrypted()
tls_device_decrypted() is only called from decrypt_skb_update(),
when ctx->decrypted == false, there is no need to re-check the bit.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Mon, 3 Jun 2019 22:17:01 +0000 (15:17 -0700)]
net/tls: don't look for decrypted frames on non-offloaded sockets
If the RX config of a TLS socket is SW, there is no point iterating
over the fragments and checking if frame is decrypted. It will
always be fully encrypted. Note that in fully encrypted case
the function doesn't actually touch any offload-related state,
so it's safe to call for TLS_SW, today. Soon we will introduce
code which can only be called for offloaded contexts.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Mon, 3 Jun 2019 22:17:00 +0000 (15:17 -0700)]
net/tls: remove false positive warning
It's possible that TCP stack will decide to retransmit a packet
right when that packet's data gets acked, especially in presence
of packet reordering. This means that packets may be in flight,
even though tls_device code has already freed their record state.
Make fill_sg_in() and in turn tls_sw_fallback() not generate a
warning in that case, and quietly proceed to drop such frames.
Make the exit path from tls_sw_fallback() drop monitor friendly,
for users to be able to troubleshoot dropped retransmissions.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Mon, 3 Jun 2019 22:16:59 +0000 (15:16 -0700)]
net/tls: check return values from skb_copy_bits() and skb_store_bits()
In light of recent bugs, we should make a better effort of
checking return values. In theory none of the functions should
fail today.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Mon, 3 Jun 2019 22:16:58 +0000 (15:16 -0700)]
net/tls: fully initialize the msg wrapper skb
If strparser gets cornered into starting a new message from
an sk_buff which already has frags, it will allocate a new
skb to become the "wrapper" around the fragments of the
message.
This new skb does not inherit any metadata fields. In case
of TLS offload this may lead to unnecessarily re-encrypting
the message, as skb->decrypted is not set for the wrapper skb.
Try to be conservative and copy all fields of old skb
strparser's user may reasonably need.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
net: mscc: ocelot: Fix some struct initializations
Clang warns:
drivers/net/ethernet/mscc/ocelot_ace.c:335:37: warning: suggest braces
around initialization of subobject [-Wmissing-braces]
struct ocelot_vcap_u64 payload = { 0 };
^
{}
drivers/net/ethernet/mscc/ocelot_ace.c:336:28: warning: suggest braces
around initialization of subobject [-Wmissing-braces]
struct vcap_data data = { 0 };
^
{}
drivers/net/ethernet/mscc/ocelot_ace.c:683:37: warning: suggest braces
around initialization of subobject [-Wmissing-braces]
struct ocelot_ace_rule del_ace = { 0 };
^
{}
drivers/net/ethernet/mscc/ocelot_ace.c:743:28: warning: suggest braces
around initialization of subobject [-Wmissing-braces]
struct vcap_data data = { 0 };
^
{}
4 warnings generated.
One way to fix these warnings is to add additional braces like Clang
suggests; however, there has been a bit of push back from some
maintainers[1][2], who just prefer memset as it is unambiguous, doesn't
depend on a particular compiler version[3], and properly initializes all
subobjects. Do that here so there are no more warnings.
Fixes: b596229448dd ("net: mscc: ocelot: Add support for tcam") Link: https://github.com/ClangBuiltLinux/linux/issues/505 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This occurs because we hold RTNL mutex, but no rcu read lock.
The second call site holds both, so just switch to the _rtnl variant.
Reported-by: syzbot+bad6e32808a3a97b1515@syzkaller.appspotmail.com Fixes: 2638eb8b50cf ("net: ipv4: provide __rcu annotation for ifa_list") Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
projects / mirror_ubuntu-kernels.git / log