Only 128 buffer descriptors are supported in the core. Limit the
number in case we have more memory.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch enabled the ethoc to allocate system memory as buffer
when there is no dedicated buffer memory.

Some hardware designs may not have dedicated buffer memory such as
on chip or off chip SRAM. In this case, only one memory resource is
supplied in the platform data instead of two. Then a DMA buffer can
be allocated from system memory and used for the transfer.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The packet buffer is allocated at 4 bytes boundary, but the IP header
length and version bits is located at byte 14. These bit fields access
as 32 bits word and caused exception on processors that do not support
unaligned access.

The patch adds 2 bytes offset to make the bit fields word aligned.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The pointer address in buffer descriptors is physical address. The
pointer that processor used to access packet is virtual address.

Though the higher bits of pointer address used by the MAC may be
truncated to zero in special case, it is not always true in larger
designs.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

It should be max() instead of min(). Use 1/4 of available
descriptors for tx, and there should be at least 2 tx
descriptors.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

in update_rx_stats() the RX_OVERLEN bit is set twice, replace it by RX_RUNT.
in au1000_rx() the RX_MISSED_FRAME bit was tested a few lines earlier already
Signed-off-by: NRoel Kluin <roel.kluin@gmail.com>
Acked-by: NManuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The closing parenthesis was not on the right location.
Signed-off-by: NRoel Kluin <roel.kluin@gmail.com>
Acked-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Not all pasemi mac interfaces can have a phy attached.
For example, XAUI has no phy and phydev is NULL for it.
In this case ethtool get settings causes kernel crash.
Fix it by returning -EOPNOTSUPP if there's no PHY attached.
Signed-off-by: NValentine Barshak <vbarshak@ru.mvista.com>
Acked-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

I was getting ribbed about this earlier, so I figured I'd make it
official.  Add myself as the maintainer of the drop monitor bits, so
people don't just gripe at Dave when it breaks (I'm sure it will never
break, but just in case :) ).
Signed-off-by: NNeil Horman <nhorman@tuxdriver.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Felix Radensky noted that chip resets were generating stack trace dumps.
This is because the driver is attempting to acquire the mdio bus mutex
while holding the tp->lock spinlock.  The fix is to change the code such
that every phy access takes the tp->lock spinlock instead.
Signed-off-by: NMatt Carlson <mcarlson@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This fixes a bug with arp_notify.

If arp_notify is enabled, kernel will crash if address is changed
and no IP address is assigned.
  http://bugzilla.kernel.org/show_bug.cgi?id=14330Reported-by: NHannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: NStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add kerneldoc comments to some functions in the Gigaset driver.

Impact: documentation
Signed-off-by: NTilman Schmidt <tilman@imap.cc>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Dump payload data consistently only when DEBUG_STREAM_DUMP debug bit
is set.

Impact: debugging aid
Signed-off-by: NTilman Schmidt <tilman@imap.cc>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

When the Gigaset base stops responding, try resetting the USB
connection to recover.

Impact: error handling improvement
Signed-off-by: NTilman Schmidt <tilman@imap.cc>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Clear out pending command that got rejected with 'ERROR' response.
This fixes the bug where unloading the driver module would hang
with the message: "gigaset: not searching scheduled commands: busy"
after a device communication error.

Impact: error handling bugfix
Signed-off-by: NTilman Schmidt <tilman@imap.cc>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Mention in the driver load announcement whether the driver was built
with debugging messages enabled, to facilitate support.

Impact: informational message
Signed-off-by: NTilman Schmidt <tilman@imap.cc>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Don't drop the remainder of an URB if an isochronous frame has an error.

Impact: error handling improvement
Signed-off-by: NTilman Schmidt <tilman@imap.cc>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The code of the Gigaset driver assumes that sk_buff-s coming
from the ISDN4Linux subsystem are always linear. Explicitly
calling skb_linearize() is cheap if they are, but much more
robust in case they ever aren't.

Impact: robustness improvement
Signed-off-by: NTilman Schmidt <tilman@imap.cc>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signal D channel disconnect in a few cases where it was missed,
including when an incoming call is disconnected before it was
accepted.

Impact: error handling improvement
Signed-off-by: NTilman Schmidt <tilman@imap.cc>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Being able to change the debugmode module parameter of capidrv on the
fly is quite useful for debugging and doesn't do any harm.
Signed-off-by: NTilman Schmidt <tilman@imap.cc>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

In several places, capidrv sends a CAPI message to the ISDN
device and then updates its internal state accordingly.
If the response message from the device arrives before the
state is updated, it may be rejected or processed incorrectly.
Avoid these races by updating the state before emitting the
message.

Impact: bugfix
Signed-off-by: NTilman Schmidt <tilman@imap.cc>
Acked-by: NKarsten Keil <keil@b1-systems.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Info values in the 0x00xx range are defined in the CAPI standard
as "Informational, message processed successfully". Therefore a
CONNECT_B3_CONF message with an Info value in that range should
open an NCCI just as with Info==0.

Impact: minor bugfix
Signed-off-by: NTilman Schmidt <tilman@imap.cc>
Acked-by: NKarsten Keil <keil@b1-systems.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

- Note that send_message() may be called in interrupt context.
- Describe the storage of CAPI messages and payload data in SKBs.
- Add more details to the description of the _cmsg structure.
- Describe kernelcapi debugging output.

Impact: documentation
Signed-off-by: NTilman Schmidt <tilman@imap.cc>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This is a fix for a bug which was a result of wrong use of checksum offload flag.
The status of tx-checksumming was not changed from on to off
after a 'ethtool -K <ifname> tx off' operation.
Use the proper checksum offload flag NETIF_F_HW_CSUM instead of
NETIF_F_IP_CSUM and NETIF_F_IPV6_CSUM.
Patch is against net-2.6 tree.
Signed-off-by: NAjit Khaparde <ajitk@serverengines.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

MCC_STATUS_NOT_SUPPORTED should be decimal 66 not hex 66.
This patch fixes this typo. Patch against net-2.6 tree.
Signed-off-by: NAjit Khaparde <ajitk@serverengines.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

While updating the statistics to be passed via the get_stats,
tx multicast frames were being accounted instead of rx multicast frames.
This patch fixes the bug. This patch is against the net-2.6 tree.
Signed-off-by: NAjit Khaparde <ajitk@serverengines.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Get rid of spinlock and private mutex usage for exclusive access to the
HW semaphore register.  rtnl_lock already creates exclusive access to
this register in all driver API.
Add rtnl to firmware worker threads that also use the HW semaphore register.
Signed-off-by: NRon Mercer <ron.mercer@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Check that we are not already polling firmware events before we queue the
firmware event worker, then disable firmware interrupts.
Otherwise we can queue the same event multiple times.
Signed-off-by: NRon Mercer <ron.mercer@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NRon Mercer <ron.mercer@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Commit 7069331d (connector: Provide the sender's credentials to the
callback, 2009-10-02) changed callbacks to take two arguments but missed
this one.

drivers/connector/cn_proc.c: In function ‘cn_proc_init’:
drivers/connector/cn_proc.c:263: warning: passing argument 3 of
‘cn_add_callback’ from incompatible pointer type
Signed-off-by: NStephen Boyd <bebarino@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

A number of drivers (recently including cfg80211-based ones)
assume that all wireless handlers, including statistics, can
sleep and they often also implicitly assume that the rtnl is
held around their invocation. This is almost always true now
except when reading from sysfs:

  BUG: sleeping function called from invalid context at kernel/mutex.c:280
  in_atomic(): 1, irqs_disabled(): 0, pid: 10450, name: head
  2 locks held by head/10450:
   #0:  (&buffer->mutex){+.+.+.}, at: [<c10ceb99>] sysfs_read_file+0x24/0xf4
   #1:  (dev_base_lock){++.?..}, at: [<c12844ee>] wireless_show+0x1a/0x4c
  Pid: 10450, comm: head Not tainted 2.6.32-rc3 #1
  Call Trace:
   [<c102301c>] __might_sleep+0xf0/0xf7
   [<c1324355>] mutex_lock_nested+0x1a/0x33
   [<f8cea53b>] wdev_lock+0xd/0xf [cfg80211]
   [<f8cea58f>] cfg80211_wireless_stats+0x45/0x12d [cfg80211]
   [<c13118d6>] get_wireless_stats+0x16/0x1c
   [<c12844fe>] wireless_show+0x2a/0x4c

Fix this by using the rtnl instead of dev_base_lock.
Reported-by: NMiles Lane <miles.lane@gmail.com>
Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch fixes a bug that got introduced in commit 76998bc7.
During preparation of mcc wrb, req was being wrongly overwritten
and the flash operation was failing.
Signed-off-by: NAjit Khaparde <ajitk@serverengines.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

pcnet_cs,serial_cs:
  
add cis of National Semicondoctor's lan&modem mulitifunction pcmcia card,
NE2K, tamarack ethernet card,
and some serial card(COMpad2, COMpad4).
Signed-off-by: NKen Kawasaki <ken_kawasaki@spring.nifty.jp>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The following user-space program fails to compile:

    #include <linux/socket.h>
    #include <sys/socket.h>
    int main() { return 0; }

The reason is that <linux/socket.h> tests __GLIBC__ to decide whether it
should define various structures and macros that are now defined for
user-space by <sys/socket.h>, but __GLIBC__ is not defined if no libc
headers have yet been included.

It seems safe to drop support for libc 5 now.
Signed-off-by: NBen Hutchings <ben@decadent.org.uk>
Signed-off-by: NBastian Blank <waldi@debian.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Commit fd29cf72 (pktgen: convert to use ktime_t)
inadvertantly converted "delay" parameter from nanosec to microsec.
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

It is not currently possible to instruct pktgen to use one selected tx queue.

When Robert added multiqueue support in commit 45b270f8, he added
an interval (queue_map_min, queue_map_max), and his code doesnt take
into account the case of min = max, to select one tx queue exactly.

I suspect a high performance setup on a eight txqueue device wants
to use exactly eight cpus, and assign one tx queue to each sender.

This patchs makes pktgen select the right tx queue, not the first one.

Also updates Documentation to reflect Robert changes.
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: NRobert Olsson <robert.olsson@its.uu.se>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

There appears to have been a mixup in the max supported jumbo frame size
between 82574 and 82583 which ended up disabling jumbo frames on the 82574
as a result.  This patch swaps the two so that this issue is resolved.

This patch fixes http://bugzilla.kernel.org/show_bug.cgi?id=14261Signed-off-by: NAlexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adds device support for the 82599 based X520 10GbE
Dual Port KX4 Mezzanine card.

Signed-off-by: Don Skidmore<donald.c.skidmore@intel.com>
Acked-by: NPeter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch will add support for the 82599 Dual port Backplane
device (0x10f8).  This device has the ability to link in serial (KR) and
parallel (KX4/KX) modes, depending on what the switch capabilities are in
the blade chassis.
Signed-off-by: NDon Skidmore <donald.c.skidmore@intel.com>
Acked-by: NPeter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>