Commit Graph

74 Commits

Author SHA1 Message Date
Mike Frysinger 72f49050ba netdev: bfin_mac: document TE setting in RMII modes
The current code sometimes generates build warnings due to how it checks
the silicon revision, so clean it up and properly document things.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-28 22:26:34 -07:00
Joe Perches f767b6df8a netdev: bfin_mac: Remove is_multicast_ether_addr use in netdev_for_each_mc_addr
Remove code that has no effect.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-13 21:48:25 -08:00
Tobias Klauser 1225277169 netdev: bfin_mac: Use is_multicast_ether_addr helper
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-12 18:46:12 -08:00
Mike Frysinger c599bd6b9a netdev: bfin_mac: let boards set vlan masks
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-10 13:31:14 -08:00
Mike Frysinger 5ca1bb5ace netdev: bfin_mac: mark setup_system_regs as static
No need for this to be exported since it is only used in this driver.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-10 13:31:12 -08:00
Mike Frysinger c6dd5098f4 netdev: bfin_mac: clean up printk messages
Use netdev_* and pr_* helper funcs for output rather than printk.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-10 13:31:12 -08:00
Sonic Zhang 02460d0893 netdev: bfin_mac: push settings to platform resources
Move all the pin settings out of the Kconfig and into the platform
resources (MII vs RMII).  This clean up also lets us push out the
phy settings so that board porters may control the layout.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-10-25 04:54:25 -04:00
Linus Torvalds 5f05647dd8 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1699 commits)
  bnx2/bnx2x: Unsupported Ethtool operations should return -EINVAL.
  vlan: Calling vlan_hwaccel_do_receive() is always valid.
  tproxy: use the interface primary IP address as a default value for --on-ip
  tproxy: added IPv6 support to the socket match
  cxgb3: function namespace cleanup
  tproxy: added IPv6 support to the TPROXY target
  tproxy: added IPv6 socket lookup function to nf_tproxy_core
  be2net: Changes to use only priority codes allowed by f/w
  tproxy: allow non-local binds of IPv6 sockets if IP_TRANSPARENT is enabled
  tproxy: added tproxy sockopt interface in the IPV6 layer
  tproxy: added udp6_lib_lookup function
  tproxy: added const specifiers to udp lookup functions
  tproxy: split off ipv6 defragmentation to a separate module
  l2tp: small cleanup
  nf_nat: restrict ICMP translation for embedded header
  can: mcp251x: fix generation of error frames
  can: mcp251x: fix endless loop in interrupt handler if CANINTF_MERRF is set
  can-raw: add msg_flags to distinguish local traffic
  9p: client code cleanup
  rds: make local functions/variables static
  ...

Fix up conflicts in net/core/dev.c, drivers/net/pcmcia/smc91c92_cs.c and
drivers/net/wireless/ath/ath9k/debug.c as per David
2010-10-23 11:47:02 -07:00
David Howells 3dcc1e7f9f Blackfin: Split PLL code from mach-specific cdef headers
Split the PLL control code from the Blackfin machine-specific cdef headers so
that the irqflags functions can be renamed without incurring a header loop.

Signed-off-by: David Howells <dhowells@redhat.com>
2010-10-07 14:08:49 +01:00
Oliver Hartkopp 2244d07bfa net: simplify flags for tx timestamping
This patch removes the abstraction introduced by the union skb_shared_tx in
the shared skb data.

The access of the different union elements at several places led to some
confusion about accessing the shared tx_flags e.g. in skb_orphan_try().

    http://marc.info/?l=linux-netdev&m=128084897415886&w=2

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-19 00:08:30 -07:00
Sonic Zhang 4fcc3d3409 netdev:bfin_mac: reclaim and free tx skb as soon as possible after transfer
SKBs hold onto resources that can't be held indefinitely, such as TCP
socket references and netfilter conntrack state.  So if a packet is left
in TX ring for a long time, there might be a TCP socket that cannot be
closed and freed up.

Current blackfin EMAC driver always reclaim and free used tx skbs in future
transfers. The problem is that future transfer may not come as soon as
possible. This patch start a timer after transfer to reclaim and free skb.
There is nearly no performance drop with this patch.

TX interrupt is not enabled because of a strange behavior of the Blackfin EMAC.
If EMAC TX transfer control is turned on, endless TX interrupts are triggered
no matter if TX DMA is enabled or not. Since DMA walks down the ring automatically,
TX transfer control can't be turned off in the middle. The only way is to disable
TX interrupt completely.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-15 15:04:10 -07:00
Denis Kirjanov 7f267de41f bfin_mac: fix memleak in mii_bus{probe|remove}
Fix memory leak with miibus->irq

Signed-off-by: Denis Kirjanov <dkirjanov@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-23 23:18:32 -07:00
Sonic Zhang 0e995cd3d3 netdev: bfin_mac: check for mii_bus platform data
If the platform data for the mii_bus is missing, gracefully error out
rather than deference NULL pointers.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-17 17:21:01 -07:00
Mike Frysinger 2bfa0f0c9a netdev: bfin_mac: handle timeouts with the MDIO registers gracefully
Have the low level MDIO functions pass back up timeout information so we
don't waste time polling them multiple times when there is a problem, and
so we don't let higher layers think the device is available when it isn't.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-17 17:21:00 -07:00
Sonic Zhang c0da776bde netdev: bfin_mac: use promiscuous flag for promiscuous mode
Rather than using the Receive All Frames (RAF) bit to enable promiscuous
mode, use the Promiscuous (PR) bit.  This lowers overhead at runtime as
we let the hardware process the packets that should actually be checked.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-17 17:21:00 -07:00
Michael Hennerich 53fd3f2829 netdev: bfin_mac: add support for wake-on-lan magic packets
Note that WOL works only in PM Suspend Standby Mode (Sleep Mode).

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-17 17:20:59 -07:00
Sonic Zhang 812a9de715 netdev: bfin_mac: clear RXCKS if hardware generated checksum is not enabled
Otherwise we might be get a setting mismatch from a previous module or
bootloader and what the driver currently expects.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-17 17:20:59 -07:00
Sonic Zhang ad2864d887 netdev: bfin_mac: deduce Ethernet FCS from hardware IP payload checksum
IP checksum is based on 16-bit one's complement algorithm, so to deduce a
value from checksum is equal to add its complement.

Unfortunately, the Blackfin on-chip MAC checksum logic only works when the
IP packet has a header length of 20 bytes.  This is true for most IPv4
packets, but not for IPv6 packets or IPv4 packets which use header options.
So only use the hardware checksum when appropriate.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Jon Kowal <jon.kowal@dspecialists.de>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-17 17:20:58 -07:00
Sonic Zhang f6e1e4f3e5 netdev: bfin_mac: invalid data cache only once for each new rx skb buffer
The skb buffer isn't actually used until we finish transferring and pass
it up to higher layers, so only invalidate the range once before we start
receiving actual data.  This also avoids the problem with data invalidating
on Blackfin systems -- there is no invalidate-only, just invalidate+flush.
So when running in writeback mode, there is the small (but not uncommon)
possibility of the flush overwriting valid DMA-ed data from the cache.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-17 17:20:58 -07:00
Peter Meerwald ec497b32c3 netdev: bfin_mac: handler RX status errors
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-17 17:20:50 -07:00
Barry Song fe92afedee netdev: bfin_mac: add support for IEEE 1588 PTP
Newer on-chip MAC peripherals support IEEE 1588 PTP in the hardware, so
extend the driver to support this functionality.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-17 17:19:40 -07:00
Joe Perches a4b770972b drivers/net: Remove unnecessary returns from void function()s
This patch removes from drivers/net/ all the unnecessary
return; statements that precede the last closing brace of
void functions.

It does not remove the returns that are immediately
preceded by a label as gcc doesn't like that.

It also does not remove null void functions with return.

Done via:
$ grep -rP --include=*.[ch] -l "return;\n}" net/ | \
  xargs perl -i -e 'local $/ ; while (<>) { s/\n[ \t\n]+return;\n}/\n}/g; print; }'

with some cleanups by hand.

Compile tested x86 allmodconfig only.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-14 00:19:28 -07:00
Eric Dumazet 1ae5dc342a net: trans_start cleanups
Now that core network takes care of trans_start updates, dont do it
in drivers themselves, if possible. Drivers can avoid one cache miss
(on dev->trans_start) in their start_xmit() handler.

Exceptions are NETIF_F_LLTX drivers

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-10 05:01:31 -07:00
Jiri Pirko 22bedad3ce net: convert multicast list to list_head
Converts the list and the core manipulating with it to be the same as uc_list.

+uses two functions for adding/removing mc address (normal and "global"
 variant) instead of a function parameter.
+removes dev_mcast.c completely.
+exposes netdev_hw_addr_list_* macros along with __hw_addr_* functions for
 manipulation with lists on a sandbox (used in bonding and 80211 drivers)

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-03 14:22:15 -07:00
Jiri Pirko 0ddf477b8a net: convert multiple drivers to use netdev_for_each_mc_addr, part3
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-22 15:45:51 -08:00
Jiri Pirko 4cd24eaf0c net: use netdev_mc_count and netdev_mc_empty when appropriate
This patch replaces dev->mc_count in all drivers (hopefully I didn't miss
anything). Used spatch and did small tweaks and conding style changes when
it was suitable.

Jirka

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-12 11:38:58 -08:00
Mike Frysinger 98f672ca99 bfin_mac: use the newer CLKBUFOE bit name via asm/dpmc.h
This driver tweaks VR_CTL, so pull in the header for the bit defines.
Also switch to the new define name as the old one has gone away.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-19 01:59:18 -08:00
Joe Perches 8e95a2026f drivers/net: Move && and || to end of previous line
Only files where David Miller is the primary git-signer.
wireless, wimax, ixgbe, etc are not modified.

Compile tested x86 allyesconfig only
Not all files compiled (not x86 compatible)

Added a few > 80 column lines, which I ignored.
Existing checkpatch complaints ignored.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-03 13:18:01 -08:00
Stephen Hemminger 0fc0b732ea netdev: drivers should make ethtool_ops const
No need to put ethtool_ops in data, they should be const.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02 01:03:33 -07:00
Patrick McHardy 6ed106549d net: use NETDEV_TX_OK instead of 0 in ndo_start_xmit() functions
This patch is the result of an automatic spatch transformation to convert
all ndo_start_xmit() return values of 0 to NETDEV_TX_OK.

Some occurences are missed by the automatic conversion, those will be
handled in a seperate patch.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-05 19:16:04 -07:00
David S. Miller b2f8f7525c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/forcedeth.c
2009-06-03 02:43:41 -07:00
Graf Yang 080c82550d netdev: bfin_mac: add Blackfin MII bus to platform bus to allow DSA access
When we register the MII bus to the platfrom bus, the Distributed Switch
Architecture can hook in transparently.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-29 15:49:09 -07:00
Michael Hennerich 015dac8886 netdev: bfin_mac: fix performance issue found by netperf
- Remove dead long delay
- Use proper defines
- Remove broken implementation of the TX DMA Data Alignment TXDWA feature

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-29 15:49:09 -07:00
Sonic Zhang 805a8ab3ce netdev: bfin_mac: fix malformed UDP packet transmission when polling with KGDB
Writes to the DMA descriptors may sit in the internal Blackfin data buffers
and not actually be available when the DMA engine goes to fetch them.  This
does not typically happen, but when dealing with short/fast packets such as
UDP and polling KGDB, this occurs much more frequently.  Same goes for
heavy loads as seen by netperf tests or large scp transfers.  So force the
buffers to drain with SSYNC otherwise we get random malformed packets.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-29 15:49:08 -07:00
Michael Hennerich 91a455f089 netdev: bfin_mac: drop useless IRQF_SHARED from Blackfin EMAC interrupt
The IRQ used by the Blackfin EMAC is internal to the peripheral and cannot
be used to generate any other interrupt, so there is no point in marking it
as IRQF_SHARED.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-29 15:49:07 -07:00
Mike Frysinger b63dc8fef7 bfin_mac: fix build error due to net_device_ops convert
The previous commit "convert to net_device_ops" broke the Blackfin MAC
driver as it declared the new structure before the function it used:
  CC      drivers/net/bfin_mac.o
drivers/net/bfin_mac.c:984: error: ‘bfin_mac_close’ undeclared here (not in a function)
make[1]: *** [drivers/net/bfin_mac.o] Error 1

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-26 20:55:33 -07:00
Alexander Beregalov 149da651bf bfin_mac: convert to net_device_ops
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-14 21:57:03 -07:00
Kay Sievers c23135573f net: struct device - replace bus_id with dev_name(), dev_set_name()
Cc: davem@davemloft.net
Cc: netdev@vger.kernel.org
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
2009-03-24 16:38:22 -07:00
David S. Miller babcda74e9 drivers/net: Kill now superfluous ->last_rx stores.
The generic packet receive code takes care of setting
netdev->last_rx when necessary, for the sake of the
bonding ARP monitor.

Drivers need not do it any more.

Some cases had to be skipped over because the drivers
were making use of the ->last_rx value themselves.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-03 21:11:17 -08:00
Adrian Bunk 0ed0563e14 net/bfin_mac.c MDIO namespace fixes
Commit 2e88810329
(phylib: add mdiobus_{read,write}) causes the
following compile error:

<--  snip  -->

...
  CC      drivers/net/bfin_mac.o
drivers/net/bfin_mac.c:272: error: conflicting types for 'mdiobus_read'
include/linux/phy.h:130: error: previous declaration of 'mdiobus_read' was here
drivers/net/bfin_mac.c:287: error: conflicting types for 'mdiobus_write'
include/linux/phy.h:131: error: previous declaration of 'mdiobus_write' was here
make[3]: *** [drivers/net/bfin_mac.o] Error 1

<--  snip  -->

This patch prefixes the driver functions with bfin_

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-12 21:15:17 -07:00
Lennert Buytenhek 298cf9beb9 phylib: move to dynamic allocation of struct mii_bus
This patch introduces mdiobus_alloc() and mdiobus_free(), and
makes all mdio bus drivers use these functions to allocate their
struct mii_bus'es dynamically.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Andy Fleming <afleming@freescale.com>
2008-10-08 16:29:57 -07:00
Harvey Harrison b39d66a81f drivers/net: replace __FUNCTION__ with __func__
__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:59:00 -04:00
Stephen Hemminger 74dfd9fb0a blackfin_mac: unneeded assignment
skb->dev is set by eth_type_trans already.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-29 18:24:14 -04:00
Michael Hennerich ee02fee8f6 Blackfin EMAC Driver: Functional power management support
Reprogram MAC address after resume from Suspend Mem
(Blackfin Hibernate looses all CORE and SYSTEM register content)

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-29 17:48:35 -04:00
Bryan Wu a50c0c05c3 Blackfin EMAC Driver: enable TXDWA new feature for new silicon (rev > 0.2)
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-29 17:48:32 -04:00
Mike Frysinger d7b843d393 Blackfin EMAC Driver: add proper __devinit/__devexit markings
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-29 17:48:27 -04:00
Anton Vorontsov c8f15686a4 netdev: bunch of drivers: avoid WARN at net/core/dev.c:1328
The drivers were touching net queue before it has been started, so
without this patch, the drivers will potentially WARN at
net/core/dev.c:1328.

I don't have the hardware for the drivers below, so this patch is
untested, and thus should be carefully peer reviewed.

tc35815.c
au1000_eth.c
bfin_mac.c
macb.c
^ The four drivers are using phylib, they're calling netif_start_queue()
in open() callback. So trivially remove netif_tx_schedule_all().
Phylib will handle netif_carrier_*().

cpmac.c
fec_mpc52xx.c
fs_enet/fs_enet-main.c
sh_eth.c
^ The same as above, but these were also needlessly calling
netif_carrier_*() functions. So removed queue calls and also remove
carrier calls, since phylib will handle it. fs_enet-main.c also didn't
call netif_start_queue() at open(), this is fixed now.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-22 15:41:24 -07:00
David S. Miller 263ba3204a netdev: Convert all drivers away from netif_schedule().
They logically all want to trigger a schedule for all device
TX queues.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 19:21:15 -07:00
Huang Weiyi 94a47f4161 Blackfin EMAC Driver: Removed duplicated include <linux/ethtool.h>
Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-22 06:20:11 -04:00
Bryan Wu 679dce39e3 Blackfin EMAC Driver: Initial version of ethtool support
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-04-29 01:56:24 -04:00