drivers/net/tulip: fix sparse warning: symbol shadows an earlier one

Impact: Rename a local variable resp. remove a redundant variable and
while being at it use more unform loop constructs.

Fix this sparse warning:
  drivers/net/tulip/de4x5.c:3944:13: warning: symbol 'i' shadows an earlier one
  drivers/net/tulip/de4x5.c:3938:9: originally declared here
  drivers/net/tulip/media.c:72:21: warning: symbol 'i' shadows an earlier one
  drivers/net/tulip/media.c:54:13: originally declared here
  drivers/net/tulip/media.c:134:21: warning: symbol 'i' shadows an earlier one
  drivers/net/tulip/media.c:117:13: originally declared here

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/tulip: fix warning: format not a string literal and no ...

Impact: Use 'static const char[]' instead of 'static char[]' and while
being at it add a KERN_INFO prefix.

Fix this warning:
  drivers/net/tulip/de4x5.c: In function 'de4x5_hw_init':
  drivers/net/tulip/de4x5.c:1268: warning: format not a string literal and no format arguments
  drivers/net/tulip/winbond-840.c: In function 'w840_init':
  drivers/net/tulip/winbond-840.c:1666: warning: format not a string literal and no format arguments

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/tokenring: fix sparse warning: symbol shadows an earlier one

Impact: Remove redundant variables.

Fix this sparse warnings:
  drivers/net/tokenring/lanstreamer.c:619:21: warning: symbol 'i' shadows an earlier one
  drivers/net/tokenring/lanstreamer.c:589:13: originally declared here
  drivers/net/tokenring/madgemc.c:695:34: warning: symbol 'tp' shadows an earlier one
  drivers/net/tokenring/madgemc.c:689:26: originally declared here
  drivers/net/tokenring/olympic.c:702:21: warning: symbol 'i' shadows an earlier one
  drivers/net/tokenring/olympic.c:440:13: originally declared here

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/tokenring: fix warning: format not a string literal and no ...

Impact: Use 'static const char[]' instead of 'static char[]'.

Fix this warnings:
  drivers/net/tokenring/smctr.c:3644: warning: format not a string literal and no format arguments

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/skfp: fix sparse warning: Should it be static?

Impact: Move function declarations to header file.

Fix this sparse warnings:
  drivers/net/skfp/cfm.c:146:6: warning: symbol 'all_selection_criteria' was not declared. Should it be static?
  drivers/net/skfp/drvfbi.c:186:6: warning: symbol 'mac1_irq' was not declared. Should it be static?
  drivers/net/skfp/drvfbi.c:284:6: warning: symbol 'read_address' was not declared. Should it be static?
  drivers/net/skfp/drvfbi.c:323:6: warning: symbol 'init_board' was not declared. Should it be static?
  drivers/net/skfp/fplustm.c:72:24: warning: symbol 'fddi_broadcast' was not declared. Should it be static?
  drivers/net/skfp/fplustm.c:679:6: warning: symbol 'mac2_irq' was not declared. Should it be static?
  drivers/net/skfp/fplustm.c:805:6: warning: symbol 'mac3_irq' was not declared. Should it be static?
  drivers/net/skfp/fplustm.c:856:5: warning: symbol 'init_fplus' was not declared. Should it be static?
  drivers/net/skfp/pcmplc.c:404:6: warning: symbol 'init_plc' was not declared. Should it be static?
  drivers/net/skfp/pcmplc.c:1592:5: warning: symbol 'pcm_status_twisted' was not declared. Should it be static?
  drivers/net/skfp/smtinit.c:68:5: warning: symbol 'init_smt' was not declared. Should it be static?

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/sfc: fix sparse warning: symbol shadows an earlier one

Impact: Move variable declaration as close to their usage as possible.

Fix this sparse warning:
  drivers/net/sfc/tenxpress.c:589:22: warning: symbol 'link_ok' shadows an earlier one
  drivers/net/sfc/tenxpress.c:575:30: originally declared here

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Acked-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/pcmcia: fix warning: format not a string literal and no ...

Impact: Use 'static const char[]' instead of 'static char[]' and while
being at it prefix the message with KERN_INFO.

Fix this warnings:
  drivers/net/pcmcia/axnet_cs.c:1716: warning: format not a string literal and no format arguments

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ixgbe: fix sparse warning: Should it be static?

Impact: Make symbol static.

Fix this sparse warning:
  drivers/net/ixgbe/ixgbe_82598.c:59:5: warning: symbol 'ixgbe_get_pcie_msix_count_82598' was not declared. Should it be static?

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/hamradio: fix sparse warnings: fix signedness

Fix this sparse warnings:
  drivers/net/hamradio/hdlcdrv.c:274:34: warning: incorrect type in argument 2 (different signedness)
  drivers/net/hamradio/hdlcdrv.c:279:47: warning: incorrect type in argument 2 (different signedness)
  drivers/net/hamradio/hdlcdrv.c:288:39: warning: incorrect type in argument 2 (different signedness)
  drivers/net/hamradio/hdlcdrv.c:300:47: warning: incorrect type in argument 2 (different signedness)

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/hamradio: fix sparse warning: symbol shadows an earlier one

Impact: Rename inner scrope variable.

Fix this sparse warning:
  drivers/net/hamradio/yam.c:856:35: warning: symbol 'dev' shadows an earlier one

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/hamradio: fix sparse warning: context imbalance

Impact: Attribute functions with __acquires(...) resp. __releases(...).

Fix this sparse warnings:
  drivers/net/hamradio/bpqether.c:387:13: warning: context imbalance in 'bpq_seq_start' - wrong count at exit
  drivers/net/hamradio/bpqether.c:419:13: warning: context imbalance in 'bpq_seq_stop' - unexpected unlock

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/hamradio: fix warning: format not a string literal and no ...

Impact: Use 'static const char[]' instead of 'static char[]' and while
being at it fix an issue in 'mkiss_init_driver', where in case of an
error the status code was not passed to printk.

Fix this warnings:
  drivers/net/hamradio/6pack.c: In function 'sixpack_init_driver':
  drivers/net/hamradio/6pack.c:802: warning: format not a string literal and no format arguments
  drivers/net/hamradio/bpqether.c: In function 'bpq_init_driver':
  drivers/net/hamradio/bpqether.c:609: warning: format not a string literal and no format arguments
  drivers/net/hamradio/mkiss.c: In function 'mkiss_init_driver':
  drivers/net/hamradio/mkiss.c:988: warning: format not a string literal and no format arguments
  drivers/net/hamradio/mkiss.c:991: warning: format not a string literal and no format arguments
  drivers/net/hamradio/scc.c: In function 'scc_init_driver':
  drivers/net/hamradio/scc.c:2109: warning: format not a string literal and no format arguments
  drivers/net/hamradio/yam.c: In function 'yam_init_driver':
  drivers/net/hamradio/yam.c:1094: warning: format not a string literal and no format arguments

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/e1000e: fix sparse warning: Should it be static?

Impact: Make symbol static.

Fix this sparse warning:
  drivers/net/e1000e/82571.c:1229:5: warning: symbol 'e1000_check_for_serdes_link_82571' was not declared. Should it be static?

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/cxgb3: fix sparse warnings: fix signedness

Fix this sparse warning:
  drivers/net/cxgb3/ael1002.c:1010:60: warning: incorrect type in argument 4 (different signedness)

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Acked-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/cxgb3: fix sparse warning: symbol shadows an earlier one

Impact: Move variable declaration as close to usage as possible.

Fix this sparse warning:
  drivers/net/cxgb3/cxgb3_main.c:1586:21: warning: symbol 'cap' shadows an earlier one

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Acked-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/bonding: fix sparse warning: symbol shadows an earlier one

Impact: Rename function scope variable.

Fix this sparse warning:
  drivers/net/bonding/bond_main.c:4704:13: warning: symbol 'mode' shadows an earlier one
  drivers/net/bonding/bond_main.c:95:13: originally declared here

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/bonding: fix sparse warnings: context imbalance

Impact: Attribute functions with __acquires(...) and/or __releases(...).

Fix this sparse warnings:
  drivers/net/bonding/bond_alb.c:1675:9: warning: context imbalance in 'bond_alb_handle_active_change' - unexpected unlock
  drivers/net/bonding/bond_alb.c:1742:9: warning: context imbalance in 'bond_alb_set_mac_address' - unexpected unlock
  drivers/net/bonding/bond_main.c:1025:17: warning: context imbalance in 'bond_do_fail_over_mac' - unexpected unlock
  drivers/net/bonding/bond_main.c:3195:13: warning: context imbalance in 'bond_info_seq_start' - wrong count at exit
  drivers/net/bonding/bond_main.c:3234:13: warning: context imbalance in 'bond_info_seq_stop' - unexpected unlock

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/atlx: fix sparse warnings: fix signedness

Impact: While being at it: statics do not need to be initialized with 0.

Fix this sparse warnings:
  drivers/net/atlx/atl1.c:109:1: warning: incorrect type in initializer (different signedness)
  drivers/net/atlx/atl2.c:2870:1: warning: incorrect type in initializer (different signedness)
  drivers/net/atlx/atl2.c:2880:1: warning: incorrect type in initializer (different signedness)
  drivers/net/atlx/atl2.c:2894:1: warning: incorrect type in initializer (different signedness)
  drivers/net/atlx/atl2.c:2904:1: warning: incorrect type in initializer (different signedness)
  drivers/net/atlx/atl2.c:2913:1: warning: incorrect type in initializer (different signedness)

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Acked-by: Jay Cliburn <jcliburn@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/atl1e: fix sparse warnings: fix signedness

Fix this sparse warnings:
  drivers/net/atl1e/atl1e_main.c:716:39: warning: incorrect type in argument 2 (different signedness)
  drivers/net/atl1e/atl1e_param.c:57:1: warning: incorrect type in initializer (different signedness)
  drivers/net/atl1e/atl1e_param.c:68:1: warning: incorrect type in initializer (different signedness)
  drivers/net/atl1e/atl1e_param.c:81:1: warning: incorrect type in initializer (different signedness)
  drivers/net/atl1e/atl1e_param.c:92:1: warning: incorrect type in initializer (different signedness)

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/arcnet: fix sparse warning: symbol shadows an earlier one

Impact: Remove redundant inner scope variable.

Fix this sparse warning:
  drivers/net/arcnet/arcnet.c:383:21: warning: symbol 'count' shadows an earlier one
  drivers/net/arcnet/arcnet.c:375:13: originally declared here

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/s2io.c: fix sparse warning: symbol shadows an earlier one

Impact: Remove redundant inner scope variable.

Fix this sparse warning:
  drivers/net/s2io.c:7223:21: warning: symbol 'i' shadows an earlier one
  drivers/net/s2io.c:7184:13: originally declared here

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/r6040.c: fix sparse warning: Using plain integer as NULL pointer

Fix this sparse warnings:
  drivers/net/r6040.c:487:31: warning: Using plain integer as NULL pointer
  drivers/net/r6040.c:492:31: warning: Using plain integer as NULL pointer

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Acked-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ppp*.c: fix sparse warnings: fix signedness

Fix this sparse warnings:
  drivers/net/ppp_generic.c:919:43: warning: incorrect type in argument 1 (different signedness)
  drivers/net/pppoe.c:1195:43: warning: incorrect type in argument 1 (different signedness)
  drivers/net/pppol2tp.c:2666:43: warning: incorrect type in argument 1 (different signedness)

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ni65.c: fix sparse warnings: fix signedness

Fix this sparse warnings:
  drivers/net/ni65.c:488:36: warning: incorrect type in argument 2 (different signedness)

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/lance.c: fix sparse warnings: fix signedness

Impact: Besides from fixing the signedness issue remove some
whitespace to obey to the 80 character limit.

Fix this sparse warnings:
  drivers/net/lance.c:399:19: warning: incorrect type in assignment (different signedness)
  drivers/net/lance.c:654:29: warning: incorrect type in argument 2 (different signedness)

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/niu.c: fix sparse warning: symbol shadows an earlier one

Impact: Move variable declaration to a more inner scope.

Fix this sparse warning:
  drivers/net/niu.c:2399:21: warning: symbol 'err' shadows an earlier one
  drivers/net/niu.c:2287:13: originally declared here

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ns83820.c: fix sparse warnings: fix signedness

Fix this sparse warnings:
  drivers/net/ns83820.c:479:36: warning: incorrect type in argument 2 (different signedness)
  drivers/net/ns83820.c:479:36: warning: incorrect type in argument 2 (different signedness)
  drivers/net/ns83820.c:479:36: warning: incorrect type in argument 2 (different signedness)
  drivers/net/ns83820.c:479:36: warning: incorrect type in argument 2 (different signedness)

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ni65.c: fix sparse warnings: symbol shadows an earlier one

Impact: Remove redundant variable declaration or move them to a more
inner scope.

Fix this sparse warnings:
  drivers/net/ni65.c:900:37: warning: symbol 'p' shadows an earlier one
  drivers/net/ni65.c:874:21: originally declared here
  drivers/net/ni65.c:925:21: warning: symbol 'p' shadows an earlier one
  drivers/net/ni65.c:874:21: originally declared here
  drivers/net/ni65.c:945:29: warning: symbol 'k' shadows an earlier one
  drivers/net/ni65.c:926:15: originally declared here

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/e2100.c: fix sparse warning: symbol shadows an earlier one

Impact: Remove redundant inner scope variable and while being at it
make use of ARRAY_SIZE instead of a hardcoded number.

Fix this sparse warning:
  drivers/net/e2100.c:219:56: warning: symbol 'i' shadows an earlier one
  drivers/net/e2100.c:181:13: originally declared here

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/at1700.c: fix sparse warning: symbol shadows an earlier one

Impact: Move variable declaration to a more inner scope.

Fix this sparse warning:
  drivers/net/at1700.c:846:21: warning: symbol 'i' shadows an earlier one
  drivers/net/at1700.c:831:13: originally declared here

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: replace commatas with semicolons

Impact: syntax fix

Interestingly enough this compiles w/o any complaints:

orphans = percpu_counter_sum_positive(&tcp_orphan_count),
sockets = percpu_counter_sum_positive(&tcp_sockets_allocated),

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

sctp: Inherit all socket options from parent correctly.

During peeloff/accept() sctp needs to save the parent socket state
into the new socket so that any options set on the parent are
inherited by the child socket.  This was found when the
parent/listener socket issues SO_BINDTODEVICE, but the
data was misrouted after a route cache flush.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

sctp: Fix the RTO-doubling on idle-link heartbeats

SCTP incorrectly doubles rto ever time a Hearbeat chunk
is generated.   However RFC 4960 states:

   On an idle destination address that is allowed to heartbeat, it is
   recommended that a HEARTBEAT chunk is sent once per RTO of that
   destination address plus the protocol parameter 'HB.interval', with
   jittering of +/- 50% of the RTO value, and exponential backoff of the
   RTO if the previous HEARTBEAT is unanswered.

Essentially, of if the heartbean is unacknowledged, do we double the RTO.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

sctp: Clean up sctp checksumming code

The sctp crc32c checksum is always generated in little endian.
So, we clean up the code to treat it as little endian and remove
all the __force casts.

Suggested by Herbert Xu.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

sctp: Allow to disable SCTP checksums via module parameter

This is a new version of my patch, now using a module parameter instead
of a sysctl, so that the option is harder to find. Please note that,
once the module is loaded, it is still possible to change the value of
the parameter in /sys/module/sctp/parameters/, which is useful if you
want to do performance comparisons without rebooting.

Computation of SCTP checksums significantly affects the performance of
SCTP. For example, using two dual-Opteron 246 connected using a Gbe
network, it was not possible to achieve more than ~730 Mbps, compared to
941 Mbps after disabling SCTP checksums.
Unfortunately, SCTP checksum offloading in NICs is not commonly
available (yet).

By default, checksums are still enabled, of course.

Signed-off-by: Lucas Nussbaum <lucas.nussbaum@ens-lyon.fr>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

igb: transition driver to only using advanced descriptors

Currently the driver uses advanced descriptors for its main functionality,
but then uses legacy when testing.  This patch changes this so that
advanced descriptors are used throughout and all mentions of legacy
descriptors are removed.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

igb: remove unused defines

This patch removes all of the unused defines from the .h files contained in
igb.  For some defines there was a use and so I plugged them into the correct
locations.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

igb: misc cleanup to combine one if statement

This patch combines a pair of if statements into one.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
CC: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

igb: cleanup incorrect comment and set IP Checksum Enable

IP Checksum enable doesn't need packet split in order to function.  It only
requires the use of advanced descriptors which the current igb driver does.
So we can enable it always without any issues.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

igb: reduce size required to trigger low latency

Update the Adaptive Interrupt Moderation algorithm so that the low latency
state is triggered less easily to prevent high interrupt loads.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

igb: misc whitespace/formatting cleanups

This patch is intended to hold several whitespace, formatting, and
comment cleanups that have been found while cleaning up the igb driver.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

mv643xx_eth: implement Large Receive Offload

Controlled by a compile-time (Kconfig) option for now, since it
isn't a win in all cases.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

mv643xx_eth: allow enabling/disabling tx checksumming via ethtool

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

mv643xx_eth: export rx csum get/set methods via ethtool

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

mv643xx_eth: implement ethtool rx/tx ring size query and resizing

Rename the mp->default_[rt]x_ring_size variables to ->[rt]x_ring_size,
allow them to be read via the standard ethtool ->get_ringparam() op,
and add a ->set_ringparam() op to allow resizing them at run time.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

mv643xx_eth: rework interrupt coalescing, and export via ethtool

This patch:
- increases the precision of the receive/transmit interrupt
  coalescing register value computations by using 64bit temporaries;
- adds functions to read the current hardware coalescing register
  values and convert them back to usecs;
- exports the {get,set} {rx,tx} coal methods via the standard
  ethtool coalescing interface.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

mv643xx_eth: unify ethtool ops for phy'd and phy-less interfaces

It's a waste having two different versions of this structure around
when the differences between ethtool ops for phy'd and phy-less
interfaces are so minor.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/isdn/hardware/mISDN: change type of hfc_jiffies to unsigned long

Jiffies are unsigned long, make sure we fit in jiffies store variable
on archs with bits per long > 32.

Patch suggested by Jiri Slaby.

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/isdn/mISDN: fix sparse warnings: make symbols static

Fix this sparse warnings:
  drivers/isdn/mISDN/clock.c:44:1: warning: symbol 'iclock_lock' was not declared. Should it be static?
  drivers/isdn/mISDN/clock.c:45:9: warning: symbol 'iclock_count' was not declared. Should it be static?
  drivers/isdn/mISDN/clock.c:46:17: warning: symbol 'iclock_tv' was not declared. Should it be static?
  drivers/isdn/mISDN/clock.c:47:9: warning: symbol 'iclock_tv_valid' was not declared. Should it be static?
  drivers/isdn/mISDN/clock.c:48:20: warning: symbol 'iclock_current' was not declared. Should it be static?

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/isdn/hardware/mISDN: fix sparse warnings: make symbols static

Fix this sparse warnings:
  drivers/isdn/hardware/mISDN/hfcpci.c:59:19: warning: symbol 'hfc_tl' was not declared. Should it be static?
  drivers/isdn/hardware/mISDN/hfcpci.c:60:9: warning: symbol 'hfc_jiffies' was not declared. Should it be static?
  drivers/isdn/hardware/mISDN/hfcsusb.h:201:6: warning: symbol 'conf_str' was not declared. Should it be static?
  drivers/isdn/hardware/mISDN/hfcsusb.h:319:12: warning: symbol 'HFC_TE_LAYER1_STATES' was not declared. Should it be static?
  drivers/isdn/hardware/mISDN/hfcsusb.h:331:12: warning: symbol 'HFC_NT_LAYER1_STATES' was not declared. Should it be static?
  drivers/isdn/hardware/mISDN/hfcsusb.c:38:12: warning: symbol 'hfcsusb_rev' was not declared. Should it be static?
  drivers/isdn/hardware/mISDN/hfcsusb.c:978:1: warning: symbol 'fill_isoc_urb' was not declared. Should it be static?
  drivers/isdn/hardware/mISDN/hfcsusb.c:1724:1: warning: symbol 'setup_hfcsusb' was not declared. Should it be static?

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Version

And updating the year

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Clean-up

Whitespaces, empty lines, 80 columns, indentations and removing redundant
parenthesis

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Comments and prints

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Re-arrange module parameters

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Moving includes

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Driver dump

Re-arrange the driver debug print to support the Tx multi-queue and add support
for debug prints at the end of the ring (when start<end)

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Removing unused struct

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Sparse endianity annotation

Resolving the majority of the issues, but there are still some left for future
patches.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Removing redundant macros

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Better struct naming

This is the device info from the chip shared memory - rename to avoid confusion

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Loopback in diag mode

When loading in diag mode, set the device to loopback instead of normal link and
then changing it to loopback mode

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Optimize chip MPS configuration

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Memory clean up on failure

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Using nvram default WoL config

The driver default WoL setting is set to the nvram default value

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: smp_mb and not just smp_rmb

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Increasing FW timeout

When enabling many debug prints, it can take a while before processing an event.
To ease the debug process, allow bigger timeout before giving up

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Returning EBUSY in debug mode as well

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Manual setting for MRRS

Allows better debug capabilities if the user wants to force an MRRS value

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Using registers name

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Pre emphasis configuration

Supporting non-default pre-emphasis settings for the internal and some external
PHYs

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: GMII not SGMII

Fixing the function name

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Removing CL73 code

This code is disabled, so removing it to avoid confusion

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Using the HW 5th lane

This 1G interface (on top of the 4 lanes 10G interface) requires additional
setting to work in CL45

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: EMAC reset

The NIG_ENABLE does not reset the emac. Replace it with explicit reset

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Saving PHY FW version

Some PHYs (like the BCM8726) FW version cannot be read after activating the
PHY, so we need to save this information

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Supporting BCM8481 PHY

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: PHY lock list

Some dual port PHY require HW lock since they are used by both interfaces
(different driver instances). Since this list is getting longer, update a
parameter at load time instead of calculating it on runtime

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Supporting BCM8726 PHY

Also adding the ability to recognize the optic module and disable it if it is
not authorized for safety reasons - since this feature might upset some users
which are willing to take the risk, it is optional and can be disabled by
setting an nvram bit (or a trivial driver patch to set this bit).
This dual port PHY requires special handling if the ports are swapped.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: GPIO accessories

A GPIO is used with the 8726 PHY. Adding the GPIO related functions in this

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Removing redundant device parameters

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Removing the board type

There are too many different board types and this field is not scalable.
Removing it and making decisions according to other fields

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Flow control enhancement

Setting better HW thresholds and enabling FW capabilities for better
enforcement. Also set the HW to more efficiently use the internal buffers if
this is a single port design

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: BW shaper enhancements

Some of the configuration can be set when loading the device and shouldn't be
re-calculated after each link up indication since it is not dependent on the
link speed

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Moving skb_record_rx_queue

Should be called for all incoming packets and not just for GRO packets

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Per queue statistics

Re-ordering the statistics to enhance readability and adding per queue
statistics (available via ethtool -S)

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Removing microcode assertion check

This check is unreliable since latest MC can issue warnings on rare occasions
which are not fatal errors

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Disabling interrupts after iSCSI-boot

Before initializing the chip after iSCSI boot, the interrupts of the function
that was used to boot must be disabled. That means that the driver needs to set
the chip as if it is the iSCSI PCI function - this bug is exposed only with MSI

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: System-page alignment

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: MSI support

Enabling MSI on top of MSI-X and INTA. Also changing the module parameter to
allow choosing INTA or MSI even when MSI-X is available. The default status
block should not be reversed for endianity. Since MSI can issue
re-configuration, the interrupt disable function now requires mmiowb

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: Multi-queue

Adding Tx multi-queue and enabling multi-queue by default

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bnx2x: New FW

This is the FW blob and the relevant definitions without any logic. It
also contains the minimal mandatory code changes to work with this FW
but it does not contain enabling of the new features that this FW
provides.

This FW is needed for:
- More efficient multi-queue
- per queue statistics
- Big-endian issue with MSI
- Improved pause response

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

igb: use timecompare to implement hardware time stamping

Both TX and RX hardware time stamping are implemented.  Due to
hardware limitations it is not possible to verify reliably which
packet was time stamped when multiple were pending for sending; this
could be solved by only allowing one packet marked for hardware time
stamping into the queue (not implemented yet).

RX time stamping relies on the flag in the packet descriptor which
marks packets that were time stamped. In "all packet" mode this flag
is not set. TODO: also support that mode (even though it'll suffer
from race conditions).

Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

igb: stub support for SIOCSHWTSTAMP

Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

igb: access to NIC time

Adds the register definitions and code to read the time
register.

Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: pass new SIOCSHWTSTAMP through to device drivers

Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

ip: support for TX timestamps on UDP and RAW sockets

Instructions for time stamping outgoing packets are take from the
socket layer and later copied into the new skb.

Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: socket infrastructure for SO_TIMESTAMPING

The overlap with the old SO_TIMESTAMP[NS] options is handled so
that time stamping in software (net_enable_timestamp()) is
enabled when SO_TIMESTAMP[NS] and/or SO_TIMESTAMPING_RX_SOFTWARE
is set.  It's disabled if all of these are off.

Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: infrastructure for hardware time stamping

The additional per-packet information (16 bytes for time stamps, 1
byte for flags) is stored for all packets in the skb_shared_info
struct. This implementation detail is hidden from users of that
information via skb_* accessor functions. A separate struct resp.
union is used for the additional information so that it can be
stored/copied easily outside of skb_shared_info.

Compared to previous implementations (reusing the tstamp field
depending on the context, optional additional structures) this
is the simplest solution. It does not extend sk_buff itself.

TX time stamping is implemented in software if the device driver
doesn't support hardware time stamping.

The new semantic for hardware/software time stamping around
ndo_start_xmit() is based on two assumptions about existing
network device drivers which don't support hardware time
stamping and know nothing about it:
 - they leave the new skb_shared_tx unmodified
 - the keep the connection to the originating socket in skb->sk
   alive, i.e., don't call skb_orphan()

Given that skb_shared_tx is new, the first assumption is safe.
The second is only true for some drivers. As a result, software
TX time stamping currently works with the bnx2 driver, but not
with the unmodified igb driver (the two drivers this patch series
was tested with).

Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: new user space API for time stamping of incoming and outgoing packets

User space can request hardware and/or software time stamping.
Reporting of the result(s) via a new control message is enabled
separately for each field in the message because some of the
fields may require additional computation and thus cause overhead.
User space can tell the different kinds of time stamps apart
and choose what suits its needs.

When a TX timestamp operation is requested, the TX skb will be cloned
and the clone will be time stamped (in hardware or software) and added
to the socket error queue of the skb, if the skb has a socket
associated with it.

The actual TX timestamp will reach userspace as a RX timestamp on the
cloned packet. If timestamping is requested and no timestamping is
done in the device driver (potentially this may use hardware
timestamping), it will be done in software after the device's
start_hard_xmit routine.

Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

timecompare: generic infrastructure to map between two time bases

Mapping from a struct timecounter to a time returned by functions like
ktime_get_real() is implemented. This is sufficient to use this code
in a network device driver which wants to support hardware time
stamping and transformation of hardware time stamps to system time.

The interface could have been made more versatile by not depending on
a time counter, but this wasn't done to avoid writing glue code
elsewhere.

The method implemented here is the one used and analyzed under the name
"assisted PTP" in the LCI PTP paper:
http://www.linuxclustersinstitute.org/conferences/archive/2008/PDF/Ohly_92221.pdf

Acked-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>