linux_dsm_epyc7002/Documentation/networking
Linus Torvalds 9a12efc5e0 Kbuild updates for v4.20 (2nd)
- clean-up leftovers in Kconfig files
 
 - remove stale oldnoconfig and silentoldconfig targets
 
 - remove unneeded cc-fullversion and cc-name variables
 
 - improve merge_config script to allow overriding option prefix
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJb3VOnAAoJED2LAQed4NsGivsP/1AJVqIrfPFP0ESn0o9RCA8a
 8tBVsdc/c9lE7XX48NSVYt0hmRIfh003t0B5R9jM2MAKaa2rsz6gGwyZZ68oV/aI
 jr56STToJ3WLbNQ8zIc3hkZdM+45FbDNEnwZLNpKaHZtufGZtHYXIAhWYAOU8xWJ
 qon8H5aeTbA1n02WDUYg4C/PO3KzMngv7E3RcuokZUzUOqwwCdSrDmfVY3pGR07G
 hX0UU8DxV0iZFwuy0B0mVWP0CUsLlaAVvU8Rj9aQrbmWTTt5TW03ZQW/3NCME1EJ
 0mJw70nDO5n5nVKEc2O9OBD1kMhchagTIJT9dtPzt4CWDB54ptvPta/2Y5w6n8Qu
 oqMaM99hxjD0ogSWV3uG2YnmAiQoN600EvAmbzzf7U4WbybmrUJJCpbOvmBa7aCl
 10Mz45xTQYOMLnfMJB8czOuW5YxnCcTe+3K+bk4nPsWB3rGQbQmdZqkhG3sp/MuB
 dANaj2QqkcF5HZpKMDIqrx9GyGNOkD/E48eRyfyjUtIx0O9WH5wMNuvJbomUmH2S
 m1oEsFOxw0KM+06pH933fNxziUxUHcded2fC3Caz17yLuTuPnRBoh2dME8w3Csub
 X6MHaG4Q+1hOfHrvk8zo/06gYgOZacl4MeF0Gq0VzZHu9FZELZ29ff/MsLT98ynN
 3MvlO1dI3Ht4uJes6kFO
 =pZIk
 -----END PGP SIGNATURE-----

Merge tag 'kbuild-v4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

 - clean-up leftovers in Kconfig files

 - remove stale oldnoconfig and silentoldconfig targets

 - remove unneeded cc-fullversion and cc-name variables

 - improve merge_config script to allow overriding option prefix

* tag 'kbuild-v4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: remove cc-name variable
  kbuild: replace cc-name test with CONFIG_CC_IS_CLANG
  merge_config.sh: Allow to define config prefix
  kbuild: remove unused cc-fullversion variable
  kconfig: remove silentoldconfig target
  kconfig: remove oldnoconfig target
  powerpc: PCI_MSI needs PCI
  powerpc: remove CONFIG_MCA leftovers
  powerpc: remove CONFIG_PCI_QSPAN
  scsi: aha152x: rename the PCMCIA define
2018-11-03 10:47:33 -07:00
..
caif
dpaa2
dsa
mac80211_hwsim
3c509.txt
6lowpan.txt
6pack.txt
af_xdp.rst bpf: typo fix in Documentation/networking/af_xdp.rst 2018-10-05 00:11:24 +02:00
alias.rst
altera_tse.txt
arcnet-hardware.txt
arcnet.txt
atm.txt
ax25.txt
batman-adv.rst
baycom.txt
bonding.txt
bridge.rst
can_ucan_protocol.rst
can.rst
cdc_mbim.txt
checksum-offloads.txt
conf.py
cops.txt
cs89x0.txt
cxacru-cf.py
cxacru.txt
cxgb.txt
dccp.txt
dctcp.txt
de4x5.txt
decnet.txt
defza.txt FDDI: defza: Add support for DEC FDDIcontroller 700 TURBOchannel adapter 2018-10-15 21:46:06 -07:00
devlink-params-bnxt.txt devlink: Add Documentation/networking/devlink-params-bnxt.txt 2018-10-04 13:49:43 -07:00
devlink-params.txt devlink: Add Documentation/networking/devlink-params.txt 2018-10-04 13:49:43 -07:00
dl2k.txt
dm9000.txt
dmfe.txt
dns_resolver.txt
dpaa.txt
driver.txt
e100.rst Documentation: e100, e1000: Add missing SPDX header 2018-10-18 12:15:27 -07:00
e1000.rst Documentation: e100, e1000: Add missing SPDX header 2018-10-18 12:15:27 -07:00
e1000e.rst Documentation: intel: Convert to RST format 2018-10-18 12:41:29 -07:00
ena.txt
eql.txt
failover.rst
fib_trie.txt
filter.txt bpf, doc: Document Jump X addressing mode 2018-10-08 10:20:56 +02:00
fm10k.rst Documentation: fm10k: Add kernel documentation 2018-10-18 12:39:39 -07:00
fore200e.txt
framerelay.txt
gen_stats.txt
generic_netlink.txt
generic-hdlc.txt
gianfar.txt
gtp.txt
hinic.txt
i40e.rst Documentation: intel: Convert to RST format 2018-10-18 12:41:29 -07:00
iavf.rst Documentation: intel: Convert to RST format 2018-10-18 12:41:29 -07:00
ice.rst kconfig: remove silentoldconfig target 2018-11-02 00:15:25 +09:00
ieee802154.txt
igb.rst Documentation: intel: Convert to RST format 2018-10-18 12:41:29 -07:00
igbvf.rst Documentation: intel: Convert to RST format 2018-10-18 12:41:29 -07:00
ila.txt
index.rst Documentation: intel: Convert to RST format 2018-10-18 12:41:29 -07:00
ip_dynaddr.txt
ip-sysctl.txt Documentation: ip-sysctl.txt: Document tcp_fwmark_accept 2018-10-29 20:41:52 -07:00
ipddp.txt
iphase.txt
ipsec.txt
ipv6.txt
ipvlan.txt
ipvs-sysctl.txt
ixgb.rst Documentation: intel: Convert to RST format 2018-10-18 12:41:29 -07:00
ixgbe.rst Documentation: intel: Convert to RST format 2018-10-18 12:41:29 -07:00
ixgbevf.rst Documentation: intel: Convert to RST format 2018-10-18 12:41:29 -07:00
kapi.rst
kcm.txt
l2tp.txt
lapb-module.txt
LICENSE.qla3xxx
LICENSE.qlcnic
LICENSE.qlge
ltpc.txt
mac80211-auth-assoc-deauth.txt
mac80211-injection.txt
mpls-sysctl.txt
msg_zerocopy.rst
multiqueue.txt
net_dim.txt
net_failover.rst
netconsole.txt
netdev-FAQ.rst
netdev-features.txt
netdevices.txt
netfilter-sysctl.txt
netif-msg.txt
netvsc.txt
nf_conntrack-sysctl.txt
nf_flowtable.txt
nfc.txt
openvswitch.txt
operstates.txt
packet_mmap.txt
phonet.txt
phy.txt
pktgen.txt
PLIP.txt
ppp_generic.txt
proc_net_tcp.txt
radiotap-headers.txt
ray_cs.txt
rds.txt
README.ipw2100
README.ipw2200
README.sb1000
regulatory.txt
rmnet.txt
rxrpc.txt rxrpc: Allow the reply time to be obtained on a client call 2018-10-04 09:54:29 +01:00
s2io.txt
scaling.txt
sctp.txt
secid.txt
seg6-sysctl.txt
segmentation-offloads.txt
skfp.txt
smc9.txt
spider_net.txt
stmmac.txt
strparser.txt
switchdev.txt
tc-actions-env-rules.txt
tcp-thin.txt
team.txt
ti-cpsw.txt
timestamping.txt
tlan.txt
tls.txt
tproxy.txt
tuntap.txt
udplite.txt
vortex.txt
vrf.txt
vxge.txt
vxlan.txt
x25-iface.txt
x25.txt
xfrm_device.txt
xfrm_proc.txt
xfrm_sync.txt
xfrm_sysctl.txt
z8530book.rst
z8530drv.txt

sb1000 is a module network device driver for the General Instrument (also known
as NextLevel) SURFboard1000 internal cable modem board.  This is an ISA card
which is used by a number of cable TV companies to provide cable modem access.
It's a one-way downstream-only cable modem, meaning that your upstream net link
is provided by your regular phone modem.

This driver was written by Franco Venturi <fventuri@mediaone.net>.  He deserves
a great deal of thanks for this wonderful piece of code!

-----------------------------------------------------------------------------

Support for this device is now a part of the standard Linux kernel.  The
driver source code file is drivers/net/sb1000.c.  In addition to this
you will need:

1.) The "cmconfig" program.  This is a utility which supplements "ifconfig"
to configure the cable modem and network interface (usually called "cm0");
and

2.) Several PPP scripts which live in /etc/ppp to make connecting via your
cable modem easy.

   These utilities can be obtained from:

      http://www.jacksonville.net/~fventuri/

   in Franco's original source code distribution .tar.gz file.  Support for
   the sb1000 driver can be found at:

      http://web.archive.org/web/*/http://home.adelphia.net/~siglercm/sb1000.html
      http://web.archive.org/web/*/http://linuxpower.cx/~cable/

   along with these utilities.

3.) The standard isapnp tools.  These are necessary to configure your SB1000
card at boot time (or afterwards by hand) since it's a PnP card.

   If you don't have these installed as a standard part of your Linux
   distribution, you can find them at:

      http://www.roestock.demon.co.uk/isapnptools/

   or check your Linux distribution binary CD or their web site.  For help with
   isapnp, pnpdump, or /etc/isapnp.conf, go to:

      http://www.roestock.demon.co.uk/isapnptools/isapnpfaq.html

-----------------------------------------------------------------------------

To make the SB1000 card work, follow these steps:

1.) Run `make config', or `make menuconfig', or `make xconfig', whichever
you prefer, in the top kernel tree directory to set up your kernel
configuration.  Make sure to say "Y" to "Prompt for development drivers"
and to say "M" to the sb1000 driver.  Also say "Y" or "M" to all the standard
networking questions to get TCP/IP and PPP networking support.

2.) *BEFORE* you build the kernel, edit drivers/net/sb1000.c.  Make sure
to redefine the value of READ_DATA_PORT to match the I/O address used
by isapnp to access your PnP cards.  This is the value of READPORT in
/etc/isapnp.conf or given by the output of pnpdump.

3.) Build and install the kernel and modules as usual.

4.) Boot your new kernel following the usual procedures.

5.) Set up to configure the new SB1000 PnP card by capturing the output
of "pnpdump" to a file and editing this file to set the correct I/O ports,
IRQ, and DMA settings for all your PnP cards.  Make sure none of the settings
conflict with one another.  Then test this configuration by running the
"isapnp" command with your new config file as the input.  Check for
errors and fix as necessary.  (As an aside, I use I/O ports 0x110 and
0x310 and IRQ 11 for my SB1000 card and these work well for me.  YMMV.)
Then save the finished config file as /etc/isapnp.conf for proper configuration
on subsequent reboots.

6.) Download the original file sb1000-1.1.2.tar.gz from Franco's site or one of
the others referenced above.  As root, unpack it into a temporary directory and
do a `make cmconfig' and then `install -c cmconfig /usr/local/sbin'.  Don't do
`make install' because it expects to find all the utilities built and ready for
installation, not just cmconfig.

7.) As root, copy all the files under the ppp/ subdirectory in Franco's
tar file into /etc/ppp, being careful not to overwrite any files that are
already in there.  Then modify ppp@gi-on to set the correct login name,
phone number, and frequency for the cable modem.  Also edit pap-secrets
to specify your login name and password and any site-specific information
you need.

8.) Be sure to modify /etc/ppp/firewall to use ipchains instead of
the older ipfwadm commands from the 2.0.x kernels.  There's a neat utility to
convert ipfwadm commands to ipchains commands:

   http://users.dhp.com/~whisper/ipfwadm2ipchains/

You may also wish to modify the firewall script to implement a different
firewalling scheme.

9.) Start the PPP connection via the script /etc/ppp/ppp@gi-on.  You must be
root to do this.  It's better to use a utility like sudo to execute
frequently used commands like this with root permissions if possible.  If you
connect successfully the cable modem interface will come up and you'll see a
driver message like this at the console:

         cm0: sb1000 at (0x110,0x310), csn 1, S/N 0x2a0d16d8, IRQ 11.
         sb1000.c:v1.1.2 6/01/98 (fventuri@mediaone.net)

The "ifconfig" command should show two new interfaces, ppp0 and cm0.
The command "cmconfig cm0" will give you information about the cable modem
interface.

10.) Try pinging a site via `ping -c 5 www.yahoo.com', for example.  You should
see packets received.

11.) If you can't get site names (like www.yahoo.com) to resolve into
IP addresses (like 204.71.200.67), be sure your /etc/resolv.conf file
has no syntax errors and has the right nameserver IP addresses in it.
If this doesn't help, try something like `ping -c 5 204.71.200.67' to
see if the networking is running but the DNS resolution is where the
problem lies.

12.) If you still have problems, go to the support web sites mentioned above
and read the information and documentation there.

-----------------------------------------------------------------------------

Common problems:

1.) Packets go out on the ppp0 interface but don't come back on the cm0
interface.  It looks like I'm connected but I can't even ping any
numerical IP addresses.  (This happens predominantly on Debian systems due
to a default boot-time configuration script.)

Solution -- As root `echo 0 > /proc/sys/net/ipv4/conf/cm0/rp_filter' so it
can share the same IP address as the ppp0 interface.  Note that this
command should probably be added to the /etc/ppp/cablemodem script
*right*between* the "/sbin/ifconfig" and "/sbin/cmconfig" commands.
You may need to do this to /proc/sys/net/ipv4/conf/ppp0/rp_filter as well.
If you do this to /proc/sys/net/ipv4/conf/default/rp_filter on each reboot
(in rc.local or some such) then any interfaces can share the same IP
addresses.

2.) I get "unresolved symbol" error messages on executing `insmod sb1000.o'.

Solution -- You probably have a non-matching kernel source tree and
/usr/include/linux and /usr/include/asm header files.  Make sure you
install the correct versions of the header files in these two directories.
Then rebuild and reinstall the kernel.

3.) When isapnp runs it reports an error, and my SB1000 card isn't working.

Solution -- There's a problem with later versions of isapnp using the "(CHECK)"
option in the lines that allocate the two I/O addresses for the SB1000 card.
This first popped up on RH 6.0.  Delete "(CHECK)" for the SB1000 I/O addresses.
Make sure they don't conflict with any other pieces of hardware first!  Then
rerun isapnp and go from there.

4.) I can't execute the /etc/ppp/ppp@gi-on file.

Solution -- As root do `chmod ug+x /etc/ppp/ppp@gi-on'.

5.) The firewall script isn't working (with 2.2.x and higher kernels).

Solution -- Use the ipfwadm2ipchains script referenced above to convert the
/etc/ppp/firewall script from the deprecated ipfwadm commands to ipchains.

6.) I'm getting *tons* of firewall deny messages in the /var/kern.log,
/var/messages, and/or /var/syslog files, and they're filling up my /var
partition!!!

Solution -- First, tell your ISP that you're receiving DoS (Denial of Service)
and/or portscanning (UDP connection attempts) attacks!  Look over the deny
messages to figure out what the attack is and where it's coming from.  Next,
edit /etc/ppp/cablemodem and make sure the ",nobroadcast" option is turned on
to the "cmconfig" command (uncomment that line).  If you're not receiving these
denied packets on your broadcast interface (IP address xxx.yyy.zzz.255
typically), then someone is attacking your machine in particular.  Be careful
out there....

7.) Everything seems to work fine but my computer locks up after a while
(and typically during a lengthy download through the cable modem)!

Solution -- You may need to add a short delay in the driver to 'slow down' the
SURFboard because your PC might not be able to keep up with the transfer rate
of the SB1000. To do this, it's probably best to download Franco's
sb1000-1.1.2.tar.gz archive and build and install sb1000.o manually.  You'll
want to edit the 'Makefile' and look for the 'SB1000_DELAY'
define.  Uncomment those 'CFLAGS' lines (and comment out the default ones)
and try setting the delay to something like 60 microseconds with:
'-DSB1000_DELAY=60'.  Then do `make' and as root `make install' and try
it out.  If it still doesn't work or you like playing with the driver, you may
try other numbers.  Remember though that the higher the delay, the slower the
driver (which slows down the rest of the PC too when it is actively
used). Thanks to Ed Daiga for this tip!

-----------------------------------------------------------------------------

Credits:  This README came from Franco Venturi's original README file which is
still supplied with his driver .tar.gz archive.  I and all other sb1000 users
owe Franco a tremendous "Thank you!"  Additional thanks goes to Carl Patten
and Ralph Bonnell who are now managing the Linux SB1000 web site, and to
the SB1000 users who reported and helped debug the common problems listed
above.


					Clemmitt Sigler
					csigler@vt.edu