Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 373 insertions, 0 deletions

diff --git a/Documentation/networking/eql.rst b/Documentation/networking/eql.rst
new file mode 100644
index 000000000..a628c4c81
--- /dev/null
+++ b/Documentation/networking/eql.rst
@@ -0,0 +1,373 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+==========================================
+EQL Driver: Serial IP Load Balancing HOWTO
+==========================================
+
+  Simon "Guru Aleph-Null" Janes, simon@ncm.com
+
+  v1.1, February 27, 1995
+
+  This is the manual for the EQL device driver. EQL is a software device
+  that lets you load-balance IP serial links (SLIP or uncompressed PPP)
+  to increase your bandwidth. It will not reduce your latency (i.e. ping
+  times) except in the case where you already have lots of traffic on
+  your link, in which it will help them out. This driver has been tested
+  with the 1.1.75 kernel, and is known to have patched cleanly with
+  1.1.86.  Some testing with 1.1.92 has been done with the v1.1 patch
+  which was only created to patch cleanly in the very latest kernel
+  source trees. (Yes, it worked fine.)
+
+1. Introduction
+===============
+
+  Which is worse? A huge fee for a 56K leased line or two phone lines?
+  It's probably the former.  If you find yourself craving more bandwidth,
+  and have a ISP that is flexible, it is now possible to bind modems
+  together to work as one point-to-point link to increase your
+  bandwidth.  All without having to have a special black box on either
+  side.
+
+
+  The eql driver has only been tested with the Livingston PortMaster-2e
+  terminal server. I do not know if other terminal servers support load-
+  balancing, but I do know that the PortMaster does it, and does it
+  almost as well as the eql driver seems to do it (-- Unfortunately, in
+  my testing so far, the Livingston PortMaster 2e's load-balancing is a
+  good 1 to 2 KB/s slower than the test machine working with a 28.8 Kbps
+  and 14.4 Kbps connection.  However, I am not sure that it really is
+  the PortMaster, or if it's Linux's TCP drivers. I'm told that Linux's
+  TCP implementation is pretty fast though.--)
+
+
+  I suggest to ISPs out there that it would probably be fair to charge
+  a load-balancing client 75% of the cost of the second line and 50% of
+  the cost of the third line etc...
+
+
+  Hey, we can all dream you know...
+
+
+2. Kernel Configuration
+=======================
+
+  Here I describe the general steps of getting a kernel up and working
+  with the eql driver.	From patching, building, to installing.
+
+
+2.1. Patching The Kernel
+------------------------
+
+  If you do not have or cannot get a copy of the kernel with the eql
+  driver folded into it, get your copy of the driver from
+  ftp://slaughter.ncm.com/pub/Linux/LOAD_BALANCING/eql-1.1.tar.gz.
+  Unpack this archive someplace obvious like /usr/local/src/.  It will
+  create the following files::
+
+       -rw-r--r-- guru/ncm	198 Jan 19 18:53 1995 eql-1.1/NO-WARRANTY
+       -rw-r--r-- guru/ncm	30620 Feb 27 21:40 1995 eql-1.1/eql-1.1.patch
+       -rwxr-xr-x guru/ncm	16111 Jan 12 22:29 1995 eql-1.1/eql_enslave
+       -rw-r--r-- guru/ncm	2195 Jan 10 21:48 1995 eql-1.1/eql_enslave.c
+
+  Unpack a recent kernel (something after 1.1.92) someplace convenient
+  like say /usr/src/linux-1.1.92.eql. Use symbolic links to point
+  /usr/src/linux to this development directory.
+
+
+  Apply the patch by running the commands::
+
+       cd /usr/src
+       patch </usr/local/src/eql-1.1/eql-1.1.patch
+
+
+2.2. Building The Kernel
+------------------------
+
+  After patching the kernel, run make config and configure the kernel
+  for your hardware.
+
+
+  After configuration, make and install according to your habit.
+
+
+3. Network Configuration
+========================
+
+  So far, I have only used the eql device with the DSLIP SLIP connection
+  manager by Matt Dillon (-- "The man who sold his soul to code so much
+  so quickly."--) .  How you configure it for other "connection"
+  managers is up to you.  Most other connection managers that I've seen
+  don't do a very good job when it comes to handling more than one
+  connection.
+
+
+3.1. /etc/rc.d/rc.inet1
+-----------------------
+
+  In rc.inet1, ifconfig the eql device to the IP address you usually use
+  for your machine, and the MTU you prefer for your SLIP lines.	One
+  could argue that MTU should be roughly half the usual size for two
+  modems, one-third for three, one-fourth for four, etc...  But going
+  too far below 296 is probably overkill. Here is an example ifconfig
+  command that sets up the eql device::
+
+       ifconfig eql 198.67.33.239 mtu 1006
+
+  Once the eql device is up and running, add a static default route to
+  it in the routing table using the cool new route syntax that makes
+  life so much easier::
+
+       route add default eql
+
+
+3.2. Enslaving Devices By Hand
+------------------------------
+
+  Enslaving devices by hand requires two utility programs: eql_enslave
+  and eql_emancipate (-- eql_emancipate hasn't been written because when
+  an enslaved device "dies", it is automatically taken out of the queue.
+  I haven't found a good reason to write it yet... other than for
+  completeness, but that isn't a good motivator is it?--)
+
+
+  The syntax for enslaving a device is "eql_enslave <master-name>
+  <slave-name> <estimated-bps>".  Here are some example enslavings::
+
+       eql_enslave eql sl0 28800
+       eql_enslave eql ppp0 14400
+       eql_enslave eql sl1 57600
+
+  When you want to free a device from its life of slavery, you can
+  either down the device with ifconfig (eql will automatically bury the
+  dead slave and remove it from its queue) or use eql_emancipate to free
+  it. (-- Or just ifconfig it down, and the eql driver will take it out
+  for you.--)::
+
+       eql_emancipate eql sl0
+       eql_emancipate eql ppp0
+       eql_emancipate eql sl1
+
+
+3.3. DSLIP Configuration for the eql Device
+-------------------------------------------
+
+  The general idea is to bring up and keep up as many SLIP connections
+  as you need, automatically.
+
+
+3.3.1.  /etc/slip/runslip.conf
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+  Here is an example runslip.conf::
+
+	  name		sl-line-1
+	  enabled
+	  baud		38400
+	  mtu		576
+	  ducmd		-e /etc/slip/dialout/cua2-288.xp -t 9
+	  command	 eql_enslave eql $interface 28800
+	  address	 198.67.33.239
+	  line		/dev/cua2
+
+	  name		sl-line-2
+	  enabled
+	  baud		38400
+	  mtu		576
+	  ducmd		-e /etc/slip/dialout/cua3-288.xp -t 9
+	  command	 eql_enslave eql $interface 28800
+	  address	 198.67.33.239
+	  line		/dev/cua3
+
+
+3.4. Using PPP and the eql Device
+---------------------------------
+
+  I have not yet done any load-balancing testing for PPP devices, mainly
+  because I don't have a PPP-connection manager like SLIP has with
+  DSLIP. I did find a good tip from LinuxNET:Billy for PPP performance:
+  make sure you have asyncmap set to something so that control
+  characters are not escaped.
+
+
+  I tried to fix up a PPP script/system for redialing lost PPP
+  connections for use with the eql driver the weekend of Feb 25-26 '95
+  (Hereafter known as the 8-hour PPP Hate Festival).  Perhaps later this
+  year.
+
+
+4. About the Slave Scheduler Algorithm
+======================================
+
+  The slave scheduler probably could be replaced with a dozen other
+  things and push traffic much faster.	The formula in the current set
+  up of the driver was tuned to handle slaves with wildly different
+  bits-per-second "priorities".
+
+
+  All testing I have done was with two 28.8 V.FC modems, one connecting
+  at 28800 bps or slower, and the other connecting at 14400 bps all the
+  time.
+
+
+  One version of the scheduler was able to push 5.3 K/s through the
+  28800 and 14400 connections, but when the priorities on the links were
+  very wide apart (57600 vs. 14400) the "faster" modem received all
+  traffic and the "slower" modem starved.
+
+
+5. Testers' Reports
+===================
+
+  Some people have experimented with the eql device with newer
+  kernels (than 1.1.75).  I have since updated the driver to patch
+  cleanly in newer kernels because of the removal of the old "slave-
+  balancing" driver config option.
+
+
+  -  icee from LinuxNET patched 1.1.86 without any rejects and was able
+     to boot the kernel and enslave a couple of ISDN PPP links.
+
+5.1. Randolph Bentson's Test Report
+-----------------------------------
+
+  ::
+
+    From bentson@grieg.seaslug.org Wed Feb  8 19:08:09 1995
+    Date: Tue, 7 Feb 95 22:57 PST
+    From: Randolph Bentson <bentson@grieg.seaslug.org>
+    To: guru@ncm.com
+    Subject: EQL driver tests
+
+
+    I have been checking out your eql driver.  (Nice work, that!)
+    Although you may already done this performance testing, here
+    are some data I've discovered.
+
+    Randolph Bentson
+    bentson@grieg.seaslug.org
+
+------------------------------------------------------------------
+
+
+  A pseudo-device driver, EQL, written by Simon Janes, can be used
+  to bundle multiple SLIP connections into what appears to be a
+  single connection.  This allows one to improve dial-up network
+  connectivity gradually, without having to buy expensive DSU/CSU
+  hardware and services.
+
+  I have done some testing of this software, with two goals in
+  mind: first, to ensure it actually works as described and
+  second, as a method of exercising my device driver.
+
+  The following performance measurements were derived from a set
+  of SLIP connections run between two Linux systems (1.1.84) using
+  a 486DX2/66 with a Cyclom-8Ys and a 486SLC/40 with a Cyclom-16Y.
+  (Ports 0,1,2,3 were used.  A later configuration will distribute
+  port selection across the different Cirrus chips on the boards.)
+  Once a link was established, I timed a binary ftp transfer of
+  289284 bytes of data.	If there were no overhead (packet headers,
+  inter-character and inter-packet delays, etc.) the transfers
+  would take the following times::
+
+      bits/sec	seconds
+      345600	8.3
+      234600	12.3
+      172800	16.7
+      153600	18.8
+      76800	37.6
+      57600	50.2
+      38400	75.3
+      28800	100.4
+      19200	150.6
+      9600	301.3
+
+  A single line running at the lower speeds and with large packets
+  comes to within 2% of this.  Performance is limited for the higher
+  speeds (as predicted by the Cirrus databook) to an aggregate of
+  about 160 kbits/sec.	The next round of testing will distribute
+  the load across two or more Cirrus chips.
+
+  The good news is that one gets nearly the full advantage of the
+  second, third, and fourth line's bandwidth.  (The bad news is
+  that the connection establishment seemed fragile for the higher
+  speeds.  Once established, the connection seemed robust enough.)
+
+  ======  ========	===  ========   ======= ======= ===
+  #lines  speed		mtu  seconds	theory  actual  %of
+	  kbit/sec	     duration	speed	speed	max
+  ======  ========	===  ========   ======= ======= ===
+  3	  115200	900	_	345600
+  3	  115200	400	18.1	345600  159825  46
+  2	  115200	900	_	230400
+  2	  115200	600	18.1	230400  159825  69
+  2	  115200	400	19.3	230400  149888  65
+  4	  57600		900	_	234600
+  4	  57600		600	_	234600
+  4	  57600		400	_	234600
+  3	  57600		600	20.9	172800  138413  80
+  3	  57600		900	21.2	172800  136455  78
+  3	  115200	600	21.7	345600  133311  38
+  3	  57600		400	22.5	172800  128571  74
+  4	  38400		900	25.2	153600  114795  74
+  4	  38400		600	26.4	153600  109577  71
+  4	  38400		400	27.3	153600  105965  68
+  2	  57600		900	29.1	115200  99410.3 86
+  1	  115200	900	30.7	115200  94229.3 81
+  2	  57600		600	30.2	115200  95789.4 83
+  3	  38400		900	30.3	115200  95473.3 82
+  3	  38400		600	31.2	115200  92719.2 80
+  1	  115200	600	31.3	115200  92423	80
+  2	  57600		400	32.3	115200  89561.6 77
+  1	  115200	400	32.8	115200  88196.3 76
+  3	  38400		400	33.5	115200  86353.4 74
+  2	  38400		900	43.7	76800	66197.7 86
+  2	  38400		600	44	76800	65746.4 85
+  2	  38400		400	47.2	76800	61289	79
+  4	  19200		900	50.8	76800	56945.7 74
+  4	  19200		400	53.2	76800	54376.7 70
+  4	  19200		600	53.7	76800	53870.4 70
+  1	  57600		900	54.6	57600	52982.4 91
+  1	  57600		600	56.2	57600	51474	89
+  3	  19200		900	60.5	57600	47815.5 83
+  1	  57600		400	60.2	57600	48053.8 83
+  3	  19200		600	62	57600	46658.7 81
+  3	  19200		400	64.7	57600	44711.6 77
+  1	  38400		900	79.4	38400	36433.8 94
+  1	  38400		600	82.4	38400	35107.3 91
+  2	  19200		900	84.4	38400	34275.4 89
+  1	  38400		400	86.8	38400	33327.6 86
+  2	  19200		600	87.6	38400	33023.3 85
+  2	  19200		400	91.2	38400	31719.7 82
+  4	  9600		900	94.7	38400	30547.4 79
+  4	  9600		400	106	38400	27290.9 71
+  4	  9600		600	110	38400	26298.5 68
+  3	  9600		900	118	28800	24515.6 85
+  3	  9600		600	120	28800	24107	83
+  3	  9600		400	131	28800	22082.7 76
+  1	  19200		900	155	19200	18663.5 97
+  1	  19200		600	161	19200	17968	93
+  1	  19200		400	170	19200	17016.7 88
+  2	  9600		600	176	19200	16436.6 85
+  2	  9600		900	180	19200	16071.3 83
+  2	  9600		400	181	19200	15982.5 83
+  1	  9600		900	305	9600	9484.72 98
+  1	  9600		600	314	9600	9212.87 95
+  1	  9600		400	332	9600	8713.37 90
+  ======  ========	===  ========   ======= ======= ===
+
+5.2. Anthony Healy's Report
+---------------------------
+
+  ::
+
+    Date: Mon, 13 Feb 1995 16:17:29 +1100 (EST)
+    From: Antony Healey <ahealey@st.nepean.uws.edu.au>
+    To: Simon Janes <guru@ncm.com>
+    Subject: Re: Load Balancing
+
+    Hi Simon,
+	  I've installed your patch and it works great. I have trialed
+	  it over twin SL/IP lines, just over null modems, but I was
+	  able to data at over 48Kb/s [ISDN link -Simon]. I managed a
+	  transfer of up to 7.5 Kbyte/s on one go, but averaged around
+	  6.4 Kbyte/s, which I think is pretty cool.  :)