This patch enables software (and phy device) time stamping. Software
time stamping using the SO_TIMESTAMPING API was tested and found to be
working on the LITE5200B board.

Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch enables software (and phy device) time stamping. Since this MAC
is based on phylib, adding the hooks makes hardware time stamping in the
phy possible.

Compile tested only.

Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch enables software (and phy device) time stamping. Since this
MAC uses phylib, adding the hooks make hardware time stamping in the phy
possible.

Compile tested only.

Cc: John Linn <john.linn@xilinx.com>
Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch enables software (and phy device) time stamping. This file is
included by drivers/net/ax88796.c, which is based on phylib. So, this
patch makes hardware time stamping in the PHY possible.

Compile tested only.
Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Signed-off-by: David S. Miller <davem@davemloft.net>

Ethernet MAC drivers based on phylib (but not using NAPI) can
enable hardware time stamping in phy devices by calling netif_rx()
conditionally based on a call to skb_defer_rx_timestamp().

This commit exports that function so that drivers calling it may
be compiled as modules.
Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Signed-off-by: David S. Miller <davem@davemloft.net>

stats_lock is non useless, lets remove it.

Also, ndo_get_stats64() doesnt have to clear the stats, caller takes
care of this.

Note: folding 32bit fields in 64bit one is problematic when one of 32bit
values wraps : SNMP reader will see a ~2^32 back change in a 64bit
value. A future patch should fix this.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Stephen Hemminger <shemminger@vyatta.com>
CC: Andrew Gallatin <gallatin@myri.com>
CC: Brice Goglin <brice@myri.com>
Acked-by: Jon Mason <mason@myri.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Remove the myri_sbus driver. Why?
* There is no possibility of ethernet mode on this adapter, so it's
  Myrinet only.
* It won't inter-op with modern versions of Myrinet, and thus can only
  work with legacy adapters.
* There are no in-kernel Linux drivers for the PCI version of this
  adapter, so it only can work on ~15 year old Sun hardware.

It's long in the tooth, let's take it to the knackers.
Signed-off-by: Jon Mason <mason@myri.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

If a client issues a DHCPREQUEST for renewal, the packet is dropped
if the old destination (the old gateway for the client) TQ is smaller
than the current best gateway TQ less GW_THRESHOLD
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Sven Eckelmann <sven@narfation.org>

In case of new default gw, changing the default gw or deleting the default gw a
uevent is triggered with type=gw, action=add/change/del and
data={GW_ORIG_ADDRESS} (if any).
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Sven Eckelmann <sven@narfation.org>

The gateway election mechanism has been a little revised. Now the
gw_election is trigered by an atomic_t flag (gw_reselect) which is set
to 1 in case of election needed, avoding to set curr_gw to NULL.
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Sven Eckelmann <sven@narfation.org>

Using throw_uevent() is now possible to trigger uevent signal that can
be recognised in userspace. Uevents will be triggered through the
/devices/virtual/net/{MESH_IFACE} kobject.

A triggered uevent has three properties:
- type: the event class. Who generates the event (only 'gw' is currently
  defined). Corresponds to the BATTYPE uevent variable.
- action: the associated action with the event ('add'/'change'/'del' are
  currently defined). Corresponds to the BATACTION uevent variable.
- data: any useful data for the userspace. Corresponds to the BATDATA
  uevent variable.
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Sven Eckelmann <sven@narfation.org>

The local and the global translation-tables are now lock free and rcu
protected.
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Acked-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Sven Eckelmann <sven@narfation.org>

With the current client announcement implementation, in case of roaming,
an update is triggered on the new AP serving the client. At that point
the new information is spread around by means of the OGM broadcasting
mechanism. Until this operations is not executed, no node is able to
correctly route traffic towards the client. This obviously causes packet
drops and introduces a delay in the time needed by the client to recover
its connections.

A new packet type called ROAMING_ADVERTISEMENT is added to account this
issue.

This message is sent in case of roaming from the new AP serving the
client to the old one and will contain the client MAC address. In this
way an out-of-OGM update is immediately committed, so that the old node
can update its global translation table. Traffic reaching this node will
then be redirected to the correct destination utilising the fresher
information. Thus reducing the packet drops and the connection recovery
delay.
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Sven Eckelmann <sven@narfation.org>

The client announcement mechanism informs every mesh node in the network
of any connected non-mesh client, in order to find the path towards that
client from any given point in the mesh.

The old implementation was based on the simple idea of appending a data
buffer to each OGM containing all the client MAC addresses the node is
serving. All other nodes can populate their global translation tables
(table which links client MAC addresses to node addresses) using this
MAC address buffer and linking it to the node's address contained in the
OGM. A node that wants to contact a client has to lookup the node the
client is connected to and its address in the global translation table.

It is easy to understand that this implementation suffers from several
issues:
 - big overhead (each and every OGM contains the entire list of
   connected clients)
 - high latencies for client route updates due to long OGM trip time and
   OGM losses

The new implementation addresses these issues by appending client
changes (new client joined or a client left) to the OGM instead of
filling it with all the client addresses each time. In this way nodes
can modify their global tables by means of "updates", thus reducing the
overhead within the OGMs.

To keep the entire network in sync each node maintains a translation
table version number (ttvn) and a translation table checksum. These
values are spread with the OGM to allow all the network participants to
determine whether or not they need to update their translation table
information.

When a translation table lookup is performed in order to send a packet
to a client attached to another node, the destination's ttvn is added to
the payload packet. Forwarding nodes can compare the packet's ttvn with
their destination's ttvn (this node could have a fresher information
than the source) and re-route the packet if necessary. This greatly
reduces the packet loss of clients roaming from one AP to the next.
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Sven Eckelmann <sven@narfation.org>

The amount of duplicated code in the receive and routing code can be
reduced when all headers provide the packet type, version and ttl in the
same first bytes.
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Sven Eckelmann <sven@narfation.org>

char was used in different places to store information without really
using the characteristics of that data type or by ignoring the fact that
char has not a well defined signedness.
Signed-off-by: Sven Eckelmann <sven@narfation.org>

count_real_packets() in batman-adv assumes char is signed, and returns -1
through it:

net/batman-adv/routing.c: In function 'receive_bat_packet':
net/batman-adv/routing.c:739: warning: comparison is always false due to limited range of data type

Use int instead.
Signed-off-by: David Howells <dhowells@redhat.com>
[sven@narfation.org: Rebase on top of current version]
Signed-off-by: Sven Eckelmann <sven@narfation.org>

interface_tx is not used outside of soft-interface.c and thus doesn't
need to be declared inside soft-interface.h
Signed-off-by: Sven Eckelmann <sven@narfation.org>

compare_orig is only used in context of orig_node which is managed
inside originator.c. It is not necessary to keep that function inside
the header originator.h.
Signed-off-by: Sven Eckelmann <sven@narfation.org>

Using 64bit stats on 32bit arches must use a synchronization or readers
can get transient values.

Fixes bug introduced in commit 6311cc44 (veth: convert to 64 bit
statistics)
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Made necessary by commit a6b7a407 ("net: remove
interrupt.h inclusion from netdevice.h").

Fixes these build errors:

drivers/staging/brcm80211/brcmfmac/dhd_linux.c:1212:3: error: implicit declaration of function 'in_interrupt'
drivers/staging/brcm80211/brcmfmac/dhd_linux.c:1390:4: error: implicit declaration of function 'tasklet_schedule'
drivers/staging/brcm80211/brcmfmac/dhd_linux.c:1988:3: error: implicit declaration of function 'tasklet_init'
drivers/staging/brcm80211/brcmfmac/dhd_linux.c:2288:5: error: implicit declaration of function 'tasklet_kill'
drivers/staging/brcm80211/brcmfmac/dhd_linux.c:232:24: error: field 'tasklet' has incomplete type
drivers/staging/brcm80211/brcmfmac/wl_iw.c:3670:2: error: implicit declaration of function 'in_interrupt'
drivers/staging/brcm80211/brcmsmac/wl_mac80211.c:1349:3: error: implicit declaration of function 'free_irq'
drivers/staging/brcm80211/brcmsmac/wl_mac80211.c:1352:2: error: implicit declaration of function 'tasklet_kill'
drivers/staging/brcm80211/brcmsmac/wl_mac80211.c:1538:4: error: implicit declaration of function 'tasklet_schedule'
drivers/staging/brcm80211/brcmsmac/wl_mac80211.c:765:2: error: implicit declaration of function 'tasklet_init'
drivers/staging/brcm80211/brcmsmac/wl_mac80211.c:817:2: error: implicit declaration of function 'request_irq'
drivers/staging/brcm80211/brcmsmac/wl_mac80211.c:817:31: error: 'IRQF_SHARED' undeclared (first use in this function)
drivers/staging/brcm80211/brcmsmac/wl_mac80211.h:65:24: error: field 'tasklet' has incomplete type
drivers/staging/rtl8187se/ieee80211/ieee80211.h:994:24: error: field 'ps_task' has incomplete type
drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c:1790:3: error: implicit declaration of function 'tasklet_schedule'
drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c:2590:2: error: implicit declaration of function 'tasklet_init'
drivers/staging/rtl8187se/r8180.h:461:24: error: field 'irq_rx_tasklet' has incomplete type
drivers/staging/rtl8187se/r8180_core.c:2764:2: error: implicit declaration of function 'tasklet_init'
drivers/staging/rtl8187se/r8180_core.c:2954:2: error: implicit declaration of function 'request_irq'
drivers/staging/rtl8187se/r8180_core.c:2954:55: error: 'IRQF_SHARED' undeclared (first use in this function)
drivers/staging/rtl8187se/r8180_core.c:3641:4: error: implicit declaration of function 'free_irq'
drivers/staging/rtl8187se/r8180_core.c:4026:3: error: implicit declaration of function 'tasklet_schedule'
drivers/staging/rtl8192e/ieee80211/ieee80211.h:2000:24: error: field 'ps_task' has incomplete type
drivers/staging/rtl8192e/r8192E.h:909:24: error: field 'irq_rx_tasklet' has incomplete type
drivers/staging/rtl8192e/r8192E.h:910:24: error: field 'irq_tx_tasklet' has incomplete type
drivers/staging/rtl8192e/r8192E.h:911:31: error: field 'irq_prepare_beacon_tasklet' has incomplete type
drivers/staging/rtl8192e/r8192E_core.c:2008:2: error: implicit declaration of function 'tasklet_init'
drivers/staging/rtl8192e/r8192E_core.c:2412:54: error: 'IRQF_SHARED' undeclared (first use in this function)
drivers/staging/rtl8192e/r8192E_core.c:2412:9: error: implicit declaration of function 'request_irq'
drivers/staging/rtl8192e/r8192E_core.c:4640:4: error: implicit declaration of function 'free_irq'
drivers/staging/rtl8192e/r8192E_core.c:620:2: error: implicit declaration of function 'synchronize_irq'
drivers/staging/rtl8192e/r8192E_core.c:913:3: error: implicit declaration of function 'tasklet_schedule'
drivers/staging/rtl8192u/ieee80211/ieee80211.h:1993:24: error: field 'ps_task' has incomplete type
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Signed-off-by: David S. Miller <davem@davemloft.net>

The comment for the skb_tx_timestamp() function suggests calling it just
after a buffer is released to the hardware for transmission. However,
for drivers that free the buffer in an ISR, this produces a race between
the time stamp code and the ISR. This commit changes the comment to advise
placing the call just before handing the buffer over to the hardware.
Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Signed-off-by: David S. Miller <davem@davemloft.net>

Firmware checking is only performed when the firmware is loaded
instead of each time the driver inits the phy.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>

The new firmware format adds versioning as firmware for a specific
chipset appears to be subject to change. Current "legacy" format is
still supported.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>

No functional difference.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>

Compile tested.
remove unnecessary code that matches this coccinelle pattern
	if (...)
		return ret;
	return ret;
Signed-off-by: Greg Dietsche <Gregory.Dietsche@cuw.edu>
Signed-off-by: David S. Miller <davem@conan.davemloft.net>

Compile tested.
remove unnecessary code that matches this coccinelle pattern
	if (...)
		return ret;
	return ret;
Signed-off-by: Greg Dietsche <Gregory.Dietsche@cuw.edu>
Signed-off-by: David S. Miller <davem@conan.davemloft.net>

Since printk_ratelimit() shouldn't be used anymore (see comment in
include/linux/printk.h), replace it with printk_ratelimited()
Signed-off-by: Manuel Zerpies <manuel.f.zerpies@ww.stud.uni-erlangen.de>
Signed-off-by: David S. Miller <davem@conan.davemloft.net>

Since printk_ratelimit() shouldn't be used anymore (see comment in
include/linux/printk.h), replace it with printk_ratelimited().
Signed-off-by: Manuel Zerpies <manuel.f.zerpies@ww.stud.uni-erlangen.de>
Signed-off-by: David S. Miller <davem@conan.davemloft.net>

In c7ac8679 "rtnetlink: Compute and store minimum ifinfo dump
size", we moved the allocation under the lock so we need to unlock
on error path.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@conan.davemloft.net>

Use the current logging styles.

Add #define DEBUG to get same output for <foo>_dbg messages.
Convert a few bare printks to pr_err.

Fix a likely copy/paste defect where a test was done with RX values:
        if (num_rx_qs > MAX_RX_QS) {
but TX limits were emitted:
        printk(KERN_ERR "num_rx_qs(=%d) greater than MAX_RX_QS(=%d)\n",
                              num_tx_qs, MAX_TX_QS);
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@conan.davemloft.net>

Unnecessary casts of void * clutter the code.

These are the remainder casts after several specific
patches to remove netdev_priv and dev_priv.

Done via coccinelle script:

$ cat cast_void_pointer.cocci
@@
type T;
T *pt;
void *pv;
@@

- pt = (T *)pv;
+ pt = pv;
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@conan.davemloft.net>