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  1. 19 Jun, 2019 5 commits
  3. 18 Jun, 2019 24 commits
  5. 17 Jun, 2019 11 commits
    • David S. Miller's avatar
      Merge branch 'UDP-GSO-audit-tests' · f97252a8
      David S. Miller authored 
      Fred Klassen says:

====================
UDP GSO audit tests

Updates to UDP GSO selftests ot optionally stress test CMSG
subsytem, and report the reliability and performance of both
TX Timestamping and ZEROCOPY messages.
====================
Acked-by: default avatarWillem de Bruijn <willemb@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      f97252a8
    • Fred Klassen's avatar
      net/udpgso_bench.sh test fails on error · 4ffc37f5
      Fred Klassen authored 
      Ensure that failure on any individual test results in an overall
failure of the test script.
Signed-off-by: default avatarFred Klassen <fklassen@appneta.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      4ffc37f5
    • Fred Klassen's avatar
      net/udpgso_bench.sh add UDP GSO audit tests · ade90d69
      Fred Klassen authored 
      Audit tests count the total number of messages sent and compares
with total number of CMSG received on error queue. Example:

    udp gso zerocopy timestamp audit
    udp rx:   1599 MB/s  1166414 calls/s
    udp tx:   1615 MB/s    27395 calls/s  27395 msg/s
    udp rx:   1634 MB/s  1192261 calls/s
    udp tx:   1633 MB/s    27699 calls/s  27699 msg/s
    udp rx:   1633 MB/s  1191358 calls/s
    udp tx:   1631 MB/s    27678 calls/s  27678 msg/s
    Summary over 4.000 seconds...
    sum udp tx:   1665 MB/s      82772 calls (27590/s)      82772 msgs (27590/s)
    Tx Timestamps:               82772 received                 0 errors
    Zerocopy acks:               82772 received

Errors are thrown if CMSG count does not equal send count,
example:

    Summary over 4.000 seconds...
    sum tcp tx:   7451 MB/s     493706 calls (123426/s)     493706 msgs (123426/s)
    ./udpgso_bench_tx: Unexpected number of Zerocopy completions:    493706 expected    493704 received

Also reduce individual test time from 4 to 3 seconds so that
overall test time does not increase significantly.

v3: Enhancements as per Willem de Bruijn <willemb@google.com>
    - document -P option for TCP audit
Signed-off-by: default avatarFred Klassen <fklassen@appneta.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      ade90d69
    • Fred Klassen's avatar
      net/udpgso_bench_tx: options to exercise TX CMSG · 79ebc3c2
      Fred Klassen authored 
      This enhancement adds options that facilitate load testing with
additional TX CMSG options, and to optionally print results of
various send CMSG operations.

These options are especially useful in isolating situations
where error-queue messages are lost when combined with other
CMSG operations (e.g. SO_ZEROCOPY).

New options:
    -a - count all CMSG messages and match to sent messages
    -T - add TX CMSG that requests TX software timestamps
    -H - similar to -T except request TX hardware timestamps
    -P - call poll() before reading error queue
    -v - print detailed results

v2: Enhancements as per Willem de Bruijn <willemb@google.com>
    - Updated control and buffer parameters for recvmsg
    - poll() parameter cleanup
    - fail on bad audit results
    - remove TOS options
    - improved reporting

v3: Enhancements as per Willem de Bruijn <willemb@google.com>
    - add SOF_TIMESTAMPING_OPT_TSONLY to eliminate MSG_TRUNC
    - general code cleanup
Signed-off-by: default avatarFred Klassen <fklassen@appneta.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      79ebc3c2
    • Linus Torvalds's avatar
      Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · 29f785ff
      Linus Torvalds authored 
      Pull vfs fixes from Al Viro:
 "MS_MOVE regression fix + breakage in fsmount(2) (also introduced in
  this cycle, along with fsmount(2) itself).

  I'm still digging through the piles of mail, so there might be more
  fixes to follow, but these two are obvious and self-contained, so
  there's no point delaying those..."

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fs/namespace: fix unprivileged mount propagation
  vfs: fsmount: add missing mntget()
      29f785ff
    • David S. Miller's avatar
      Merge branch 'net-ipv4-remove-erroneous-advancement-of-list-pointer' · 4bd366ce
      David S. Miller authored 
      Florian Westphal says:

====================
net: ipv4: remove erroneous advancement of list pointer

Tariq reported a soft lockup on net-next that Mellanox was able to
bisect to 2638eb8b ("net: ipv4: provide __rcu annotation for ifa_list").

While reviewing above patch I found a regression when addresses have a
lifetime specified.

Second patch extends rtnetlink.sh to trigger crash
(without first patch applied).
====================
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      4bd366ce
    • Florian Westphal's avatar
      selftests: rtnetlink: add addresses with fixed life time · 3cfa1488
      Florian Westphal authored 
      This exercises kernel code path that deal with addresses that have
a limited lifetime.

Without previous fix, this triggers following crash on net-next:
 BUG: KASAN: null-ptr-deref in check_lifetime+0x403/0x670
 Read of size 8 at addr 0000000000000010 by task kworker [..]
Signed-off-by: default avatarFlorian Westphal <fw@strlen.de>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      3cfa1488
    • Florian Westphal's avatar
      net: ipv4: remove erroneous advancement of list pointer · 40008e92
      Florian Westphal authored 
      Causes crash when lifetime expires on an adress as garbage is
dereferenced soon after.

This used to look like this:

 for (ifap = &ifa->ifa_dev->ifa_list;
      *ifap != NULL; ifap = &(*ifap)->ifa_next) {
          if (*ifap == ifa) ...

but this was changed to:

struct in_ifaddr *tmp;

ifap = &ifa->ifa_dev->ifa_list;
tmp = rtnl_dereference(*ifap);
while (tmp) {
   tmp = rtnl_dereference(tmp->ifa_next); // Bogus
   if (rtnl_dereference(*ifap) == ifa) {
     ...
   ifap = &tmp->ifa_next;		// Can be NULL
   tmp = rtnl_dereference(*ifap);	// Dereference
   }
}

Remove the bogus assigment/list entry skip.

Fixes: 2638eb8b ("net: ipv4: provide __rcu annotation for ifa_list")
Signed-off-by: default avatarFlorian Westphal <fw@strlen.de>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      40008e92
    • Arnd Bergmann's avatar
      net: dsa: sja1105: fix ptp link error · 78fe8a28
      Arnd Bergmann authored 
      Due to a reversed dependency, it is possible to build
the lower ptp driver as a loadable module and the actual
driver using it as built-in, causing a link error:

drivers/net/dsa/sja1105/sja1105_spi.o: In function `sja1105_static_config_upload':
sja1105_spi.c:(.text+0x6f0): undefined reference to `sja1105_ptp_reset'
drivers/net/dsa/sja1105/sja1105_spi.o:(.data+0x2d4): undefined reference to `sja1105et_ptp_cmd'
drivers/net/dsa/sja1105/sja1105_spi.o:(.data+0x604): undefined reference to `sja1105pqrs_ptp_cmd'
drivers/net/dsa/sja1105/sja1105_main.o: In function `sja1105_remove':
sja1105_main.c:(.text+0x8d4): undefined reference to `sja1105_ptp_clock_unregister'
drivers/net/dsa/sja1105/sja1105_main.o: In function `sja1105_rxtstamp_work':
sja1105_main.c:(.text+0x964): undefined reference to `sja1105_tstamp_reconstruct'
drivers/net/dsa/sja1105/sja1105_main.o: In function `sja1105_setup':
sja1105_main.c:(.text+0xb7c): undefined reference to `sja1105_ptp_clock_register'
drivers/net/dsa/sja1105/sja1105_main.o: In function `sja1105_port_deferred_xmit':
sja1105_main.c:(.text+0x1fa0): undefined reference to `sja1105_ptpegr_ts_poll'
sja1105_main.c:(.text+0x1fc4): undefined reference to `sja1105_tstamp_reconstruct'
drivers/net/dsa/sja1105/sja1105_main.o:(.rodata+0x5b0): undefined reference to `sja1105_get_ts_info'

Change the Makefile logic to always build the ptp module
the same way as the rest. Another option would be to
just add it to the same module and remove the exports,
but I don't know if there was a good reason to keep them
separate.

Fixes: bb77f36a ("net: dsa: sja1105: Add support for the PTP clock")
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      78fe8a28
    • Arnd Bergmann's avatar
      net: stmmac: fix unused-variable warning · c63d1e5c
      Arnd Bergmann authored 
      When building without CONFIG_OF, we get a harmless build warning:

drivers/net/ethernet/stmicro/stmmac/stmmac_main.c: In function 'stmmac_phy_setup':
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:973:22: error: unused variable 'node' [-Werror=unused-variable]
  struct device_node *node = priv->plat->phy_node;

Reword it so we always use the local variable, by making it the
fwnode pointer instead of the device_node.

Fixes: 74371272 ("net: stmmac: Convert to phylink and remove phylib logic")
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      c63d1e5c
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · da0f3820
      Linus Torvalds authored 
      Pull networking fixes from David Miller:
 "Lots of bug fixes here:

   1) Out of bounds access in __bpf_skc_lookup, from Lorenz Bauer.

   2) Fix rate reporting in cfg80211_calculate_bitrate_he(), from John
      Crispin.

   3) Use after free in psock backlog workqueue, from John Fastabend.

   4) Fix source port matching in fdb peer flow rule of mlx5, from Raed
      Salem.

   5) Use atomic_inc_not_zero() in fl6_sock_lookup(), from Eric Dumazet.

   6) Network header needs to be set for packet redirect in nfp, from
      John Hurley.

   7) Fix udp zerocopy refcnt, from Willem de Bruijn.

   8) Don't assume linear buffers in vxlan and geneve error handlers,
      from Stefano Brivio.

   9) Fix TOS matching in mlxsw, from Jiri Pirko.

  10) More SCTP cookie memory leak fixes, from Neil Horman.

  11) Fix VLAN filtering in rtl8366, from Linus Walluij.

  12) Various TCP SACK payload size and fragmentation memory limit fixes
      from Eric Dumazet.

  13) Use after free in pneigh_get_next(), also from Eric Dumazet.

  14) LAPB control block leak fix from Jeremy Sowden"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (145 commits)
  lapb: fixed leak of control-blocks.
  tipc: purge deferredq list for each grp member in tipc_group_delete
  ax25: fix inconsistent lock state in ax25_destroy_timer
  neigh: fix use-after-free read in pneigh_get_next
  tcp: fix compile error if !CONFIG_SYSCTL
  hv_sock: Suppress bogus "may be used uninitialized" warnings
  be2net: Fix number of Rx queues used for flow hashing
  net: handle 802.1P vlan 0 packets properly
  tcp: enforce tcp_min_snd_mss in tcp_mtu_probing()
  tcp: add tcp_min_snd_mss sysctl
  tcp: tcp_fragment() should apply sane memory limits
  tcp: limit payload size of sacked skbs
  Revert "net: phylink: set the autoneg state in phylink_phy_change"
  bpf: fix nested bpf tracepoints with per-cpu data
  bpf: Fix out of bounds memory access in bpf_sk_storage
  vsock/virtio: set SOCK_DONE on peer shutdown
  net: dsa: rtl8366: Fix up VLAN filtering
  net: phylink: set the autoneg state in phylink_phy_change
  net: add high_order_alloc_disable sysctl/static key
  tcp: add tcp_tx_skb_cache sysctl
  ...
      da0f3820
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