o Loop 10 times with delay of 1 ms to rcv packet.
o Print garbage packet.
o Try send/receive MAX(16) packet, instead of exit from test,
if a packet is not received.
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Mon, 4 Oct 2010 05:17:54 +0000 (22:17 -0700)]
net: introduce DST_NOCACHE flag
While doing stress tests with IP route cache disabled, and multi queue
devices, I noticed a very high contention on one rwlock used in
neighbour code.
When many cpus are trying to send frames (possibly using a high
performance multiqueue device) to the same neighbour, they fight for the
neigh->lock rwlock in order to call neigh_hh_init(), and fight on
hh->hh_refcnt (a pair of atomic_inc/atomic_dec_and_test())
But we dont need to call neigh_hh_init() for dst that are used only
once. It costs four atomic operations at least, on two contended cache
lines, plus the high contention on neigh->lock rwlock.
Introduce a new dst flag, DST_NOCACHE, that is set when dst was not
inserted in route cache.
With the stress test bench, sending 160000000 frames on one neighbour,
results are :
Before patch:
real 2m28.406s
user 0m11.781s
sys 36m17.964s
After patch:
real 1m26.532s
user 0m12.185s
sys 20m3.903s
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Sathya Perla [Mon, 4 Oct 2010 05:12:27 +0000 (22:12 -0700)]
be2net: add multiple RX queue support
This patch adds multiple RX queue support to be2net. There are
upto 4 extra rx-queues per port into which TCP/UDP traffic can be hashed into.
Some of the ethtool stats are now displayed on a per queue basis.
Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ursula Braun [Fri, 1 Oct 2010 02:51:13 +0000 (02:51 +0000)]
qeth: tagging with VLAN-ID 0
This patch adapts qeth to handle tagged frames with VLAN-ID 0 and
with or without priority information in the tag. It enables qeth to
receive priority-tagged frames on a base interface, for example from
z/OS, without configuring an additional VLAN interface.
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Remove a bogus PCI function number check from the driver's .remove
method that causes pci_release_regions not to be called for function 0
if additional functions are attached and one of them is used as primary.
Signed-off-by: Dimitris Michailidis <dm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This code does not call deinit_card(card); in an error case, as done in
other error-handling code in the same function. But actually, the called
function init_sram can only return 0, so there is no need for the error
check at all.
init_sram is also given a void return type, and its single return statement
at the end of the function is dropped.
A simplified version of the sematic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
ERROR: trailing statements should be on next line
#23: FILE: drivers/net/tulip/de4x5.c:5477:
+ if (copy_to_user(ioc->data, tmp.lval, ioc->len)) return -EFAULT;
total: 1 errors, 0 warnings, 8 lines checked
./patches/drivers-net-tulip-de4x5c-fix-copy-length-in-de4x5_ioctl.patch has style problems, please review. If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.
Please run checkpatch prior to sending patches
Cc: Dan Rosenberg <dan.j.rosenberg@gmail.com> Cc: Grant Grundler <grundler@parisc-linux.org> Cc: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Dan Rosenberg [Fri, 1 Oct 2010 11:51:47 +0000 (11:51 +0000)]
sctp: Fix out-of-bounds reading in sctp_asoc_get_hmac()
The sctp_asoc_get_hmac() function iterates through a peer's hmac_ids
array and attempts to ensure that only a supported hmac entry is
returned. The current code fails to do this properly - if the last id
in the array is out of range (greater than SCTP_AUTH_HMAC_ID_MAX), the
id integer remains set after exiting the loop, and the address of an
out-of-bounds entry will be returned and subsequently used in the parent
function, causing potentially ugly memory corruption. This patch resets
the id integer to 0 on encountering an invalid id so that NULL will be
returned after finishing the loop if no valid ids are found.
Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com> Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Dan Rosenberg [Fri, 1 Oct 2010 11:16:58 +0000 (11:16 +0000)]
sctp: prevent reading out-of-bounds memory
Two user-controlled allocations in SCTP are subsequently dereferenced as
sockaddr structs, without checking if the dereferenced struct members fall
beyond the end of the allocated chunk. There doesn't appear to be any
information leakage here based on how these members are used and
additional checking, but it's still worth fixing.
[akpm@linux-foundation.org: remove unfashionable newlines, fix gmail tab->space conversion] Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com> Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com> Cc: David Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
David Stevens [Thu, 30 Sep 2010 14:29:40 +0000 (14:29 +0000)]
ipv4: correct IGMP behavior on v3 query during v2-compatibility mode
A recent patch to allow IGMPv2 responses to IGMPv3 queries
bypasses length checks for valid query lengths, incorrectly
resets the v2_seen timer, and does not support IGMPv1.
The following patch responds with a v2 report as required
by IGMPv2 while correcting the other problems introduced
by the patch.
Signed-Off-By: David L Stevens <dlstevens@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Sun, 3 Oct 2010 15:42:05 +0000 (15:42 +0000)]
netdev: Depend on INET before selecting INET_LRO
Since 'select' ignores dependencies, drivers that select INET_LRO must
depend on INET. This fixes the broken configuration reported in
<http://article.gmane.org/gmane.linux.kernel/825646>.
Reported-by: Subrata Modak <subrata@linux.vnet.ibm.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
LRO is now deprecated in favour of GRO, and only a few drivers use it,
so it is desirable to build it as a module in distribution kernels.
The original change to prevent building it as a module was made in an
attempt to avoid the case where some dependents are set to y and some
to m, and INET_LRO can be set to m rather than y. However, the
Kconfig system will reliably set INET_LRO=y in this case.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
Nagendra Tomar [Sat, 2 Oct 2010 23:45:06 +0000 (23:45 +0000)]
net: Fix the condition passed to sk_wait_event()
This patch fixes the condition (3rd arg) passed to sk_wait_event() in
sk_stream_wait_memory(). The incorrect check in sk_stream_wait_memory()
causes the following soft lockup in tcp_sendmsg() when the global tcp
memory pool has exhausted.
What is happening is, that the sk_wait_event() condition passed from
sk_stream_wait_memory() evaluates to true for the case of tcp global memory
exhaustion. This is because both sk_stream_memory_free() and vm_wait are true
which causes sk_wait_event() to *not* call schedule_timeout().
Hence sk_stream_wait_memory() returns immediately to the caller w/o sleeping.
This causes the caller to again try allocation, which again fails and again
calls sk_stream_wait_memory(), and so on.
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com> Signed-off-by: Roopa Prabhu <roprabhu@cisco.com> Signed-off-by: David Wang <dwang2@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com> Signed-off-by: Roopa Prabhu <roprabhu@cisco.com> Signed-off-by: David Wang <dwang2@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com> Signed-off-by: Roopa Prabhu <roprabhu@cisco.com> Signed-off-by: David Wang <dwang2@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
isdn/gigaset: improve bas_gigaset USB error reporting
Rephrase some USB error messages to make them clearer and more consistent.
Downgrade some warning messages that may occur during normal operation to
debug messages.
Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
Rework the handling of USB errors in interrupt input reads
to clear halts correctly, delay URB resubmission after errors,
limit retries, and improve error recovery.
Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
Use setup_timer() and mod_timer() instead of direct assignment to
timer structure members, simplify the argument of one timer routine,
and make extra sure all timers are stopped during suspend.
Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
In transparent data reception, avoid a NULL pointer dereference
in case an skbuff cannot be allocated, remove an inappropriate
call to the HDLC flush routine, and correct the accounting of
received bytes for continued buffers.
Signed-off-by: Tilman Schmidt <tilman@imap.cc> CC: stable <stable@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
isdn/gigaset: fix bas_gigaset AT read error handling
Rework the handling of USB errors in AT response reads
to fix a possible infinite retry loop and a memory leak,
and silence a few overly verbose kernel messages.
Signed-off-by: Tilman Schmidt <tilman@imap.cc> CC: stable <stable@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Matt Carlson [Thu, 30 Sep 2010 10:34:37 +0000 (10:34 +0000)]
tg3: Update version to 3.114
This patch updates the tg3 version to 3.114.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Matt Carlson [Thu, 30 Sep 2010 10:34:36 +0000 (10:34 +0000)]
tg3: Add extend rx ring sizes for 5717 and 5719
This patch increases the rx ring sizes for those asic revs that support
them.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Matt Carlson [Thu, 30 Sep 2010 10:34:35 +0000 (10:34 +0000)]
tg3: Prepare for larger rx ring sizes
This patch adds two new variables to track the size of the standard and
jumbo rx producer ring sizes. The code is then pivoted to these
variables from preprocessor constants.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Matt Carlson [Thu, 30 Sep 2010 10:34:34 +0000 (10:34 +0000)]
tg3: Futureproof the loopback test
There are other multiqueue modes 5717 and 5719 devices can assume. This
patch makes sure that the loopback test is safe, should those other
modes be enabled in the future.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Matt Carlson [Thu, 30 Sep 2010 10:34:33 +0000 (10:34 +0000)]
tg3: Cleanup missing VPD partno section
This patch cleans up the default VPD partno section. New entries for
5717 asic rev devices were also added.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Matt Carlson [Thu, 30 Sep 2010 10:34:32 +0000 (10:34 +0000)]
tg3: Remove 5724 device ID
This product was never released to the public.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Matt Carlson [Thu, 30 Sep 2010 10:34:31 +0000 (10:34 +0000)]
tg3: 5719: Prevent tx data corruption
This patch enables a bit that prevents read DMA overflows and adjusts
the txmbuf margin from the hardware default. The combination of these
modifications prevents a tx data corruption issue we were seeing on the
5719.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Matt Carlson [Thu, 30 Sep 2010 10:34:30 +0000 (10:34 +0000)]
tg3: Fix potential netpoll crash
Up until now the tg3 driver would call netif_napi_add() for the maximum
number of NAPI instances the driver could use. The problem is that
netpoll could call tg3_poll() on instances that are not active. The net
effect is that the driver will crash attempting to dereference
uninitialized pointers.
The fix is to only allocate as many NAPI instances as the driver would
use in tg3_open() and deleted them in tg3_close().
Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Thu, 30 Sep 2010 03:33:58 +0000 (03:33 +0000)]
ipv4: rcu conversion in ip_route_output_slow
ip_route_output_slow() is enclosed in an rcu_read_lock() protected
section, so that no references are taken/released on device, thanks to
__ip_dev_find() & dev_get_by_index_rcu()
Tested with ip route cache disabled, and a stress test :
Eric Dumazet [Thu, 30 Sep 2010 03:31:56 +0000 (03:31 +0000)]
ipv4: introduce __ip_dev_find()
ip_dev_find(net, addr) finds a device given an IPv4 source address and
takes a reference on it.
Introduce __ip_dev_find(), taking a third argument, to optionally take
the device reference. Callers not asking the reference to be taken
should be in an rcu_read_lock() protected section.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Thu, 30 Sep 2010 02:16:44 +0000 (02:16 +0000)]
vlan: dont drop packets from unknown vlans in promiscuous mode
Roger Luethi noticed packets for unknown VLANs getting silently dropped
even in promiscuous mode.
Check for promiscuous mode in __vlan_hwaccel_rx() and vlan_gro_common()
before drops.
As suggested by Patrick, mark such packets to have skb->pkt_type set to
PACKET_OTHERHOST to make sure they are dropped by IP stack.
Reported-by: Roger Luethi <rl@hellgate.ch> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Bruce Allan [Wed, 29 Sep 2010 21:39:37 +0000 (21:39 +0000)]
e1000e: 82579 performance improvements
The initial support for 82579 was tuned poorly for performance. Adjust the
packet buffer allocation appropriately for both standard and jumbo frames;
and for jumbo frames increase the receive descriptor pre-fetch, disable
adaptive interrupt moderation and set the DMA latency tolerance.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Most e1000e parts support batching writebacks. The problem with this is
that when some of the TADV or TIDV timers are not set, Tx can sit forever.
This is solved in this patch with write flushes using the Flush Partial
Descriptors (FPD) bit in TIDV and RDTR.
This improves bus utilization and removes partial writes on e1000e,
particularly from 82571 parts in S5500 chipset based machines.
Only ES2LAN and 82571/2 parts are included in this optimization, to reduce
testing load.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Emil Tantilov [Wed, 29 Sep 2010 21:35:23 +0000 (21:35 +0000)]
ixgbe: fix link issues and panic with shared interrupts for 82598
Fix possible panic/hang with shared Legacy interrupts by not enabling
interrupts when interface is down.
Also fixes an intermittent link by enabling LSC upon exit from ixgbe_intr()
This patch adds flags to ixgbe_irq_enable() to allow for some flexibility
when enabling interrupts.
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Stephen Ko <stephen.s.ko@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Phonet: restore flow control credits when sending fails
Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Kumar Sanghvi <kumar.sanghvi@stericsson.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Philip Rakity <prakity@marvell.com> Signed-off-by: Sachin Sanap <ssanap@marvell.com> Signed-off-by: Mark Brown <markb@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ondrej Zary [Tue, 28 Sep 2010 08:46:17 +0000 (08:46 +0000)]
de2104x: remove experimental status
It should be ready after 8 years...remove the experimental dependency.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Acked-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ondrej Zary [Tue, 28 Sep 2010 08:18:55 +0000 (08:18 +0000)]
de2104x: disable media debug messages by default
Print media debug messages only when HW debug is enabled.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Acked-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Gallatin [Tue, 28 Sep 2010 08:13:12 +0000 (08:13 +0000)]
myri10ge: DCA update (resubmit)
This patch contains the following DCA improvements to myri10ge:
1) Finally move myri10ge to use dca3 API
2) Disable PCIe relaxed ordering when enabling DCA on
myri10ge. This provides a performance boost on Nehalem
based Xeons
3) Make sure to properly initialize NIC's DCA state when it is enabled,
rather than giving the NIC a bogus tag (0) and waiting for
the first received packet to trigger an update. Not using a
real tag can cause hardware exceptions on some motherboards
when a CPU socket is empty.
3) Always update the cached CPU when our interrupt affinity changes
so as to avoid excessive calls to dca3_get_tag()
Signed-off-by: Andrew Gallatin <gallatin@myri.com> Signed-off-by: Loic Prylli <loic@myri.com> Signed-off-by: David S. Miller <davem@davemloft.net>
um: Proper Fix for f25c80a4: remove duplicate structure field initialization
uml_net_set_mac() was broken and luckily it was never used, before.
What it was trying to do is spin_lock before memcopy the mac address.
Linus attempted to fix it in assumption that someone decided the
lock was needed. But since it was never ever used at all, and was
just dead code, I think we can assume that it is not needed, after
all.
On the other hand patch [f25c80a4] was trying to use eth_mac_addr()
in eth_configure(), *which was the real fallout*. Because of state
checks done inside eth_mac_addr() the address was never set. I have
not reintroduced the memcpy wrapper, but I've put a comment for future
cats.
The code now is back to exactly as it was before [f25c80a4]. With
the cleanup applied. If the spin_lock is indeed needed then a contender
should supply a test case that fails, then fix it with the proper
locking, as a separate unrelated patch.
CC: Julia Lawall <julia@diku.dk> CC: David S. Miller <davem@davemloft.net> CC: Andrew Morton <akpm@linux-foundation.org> CC: Al Viro <viro@ZenIV.linux.org.uk> Tested-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: David S. Miller <davem@davemloft.net>
AnyIP is the capability to receive packets and establish incoming
connections on IPs we have not explicitly configured on the machine.
An example use case is to configure a machine to accept all incoming
traffic on eth0, and leave the policy of whether traffic for a given IP
should be delivered to the machine up to the load balancer.
Can be setup as follows:
ip -6 rule from all iif eth0 lookup 200
ip -6 route add local default dev lo table 200
(in this case for all IPv6 addresses)
Signed-off-by: Maciej Żenczykowski <maze@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Herbert [Sun, 23 May 2010 19:54:12 +0000 (19:54 +0000)]
ipv4: Allow configuring subnets as local addresses
This patch allows a host to be configured to respond to any address in
a specified range as if it were local, without actually needing to
configure the address on an interface. This is done through routing
table configuration. For instance, to configure a host to respond
to any address in 10.1/16 received on eth0 as a local address we can do:
ip rule add from all iif eth0 lookup 200
ip route add local 10.1/16 dev lo proto kernel scope host src 127.0.0.1 table 200
This host is now reachable by any 10.1/16 address (route lookup on
input for packets received on eth0 can find the route). On output, the
rule will not be matched so that this host can still send packets to
10.1/16 (not sent on loopback). Presumably, external routing can be
configured to make sense out of this.
To make this work, we needed to modify the logic in finding the
interface which is assigned a given source address for output
(dev_ip_find). We perform a normal fib_lookup instead of just a
lookup on the local table, and in the lookup we ignore the input
interface for matching.
This patch is useful to implement IP-anycast for subnets of virtual
addresses.
Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 29 Sep 2010 05:37:56 +0000 (22:37 -0700)]
ip_gre: Fix dependencies wrt. ipv6.
The GRE tunnel driver needs to invoke icmpv6 helpers in the
ipv6 stack when ipv6 support is enabled.
Therefore if IPV6 is enabled, we have to enforce that GRE's
enabling (modular or static) matches that of ipv6.
Reported-by: Patrick McHardy <kaber@trash.net> Reported-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
net-2.6: SYN retransmits: Add new parameter to retransmits_timed_out()
Fixes kernel Bugzilla Bug 18952
This patch adds a syn_set parameter to the retransmits_timed_out()
routine and updates its callers. If not set, TCP_RTO_MIN is taken
as the calculation basis as before. If set, TCP_TIMEOUT_INIT is
used instead, so that sysctl_syn_retries represents the actual
amount of SYN retransmissions in case no SYNACKs are received when
establishing a new connection.
Signed-off-by: Damian Lukowski <damian@tvk.rwth-aachen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
The WMM parameter configuration function (ieee80211_sta_wmm_params) only
configures the WMM parameters to the driver is the wmm_last_param_set
counter value is changed by the AP.
The wmm_last_param_set is initialized to -1 on association in order to ensure
the configuration is made to the driver at least once on association, but
currently this initialization is done *after* the WMM parameter configuration
function was called.
This leads to unreliability in the driver getting properly configured on first
association (depending on what counter value the AP happens to use.) When
disassociating (the wmm default parameters are configured to the driver) and
then reassociating, due to the above the WMM configuration is not set to the
driver at all.
On drivers without beacon filtering the problem is corrected by later beacons,
but on drivers with beacon filtering the WMM will remain permanently incorrectly
configured.
Fix this by moving the initialization of wmm_last_param_set to -1 before
ieee80211_sta_wmm_params is called on association.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Tue, 28 Sep 2010 10:53:14 +0000 (12:53 +0200)]
cfg80211: always set IBSS basic rates
IBSS started from wireless extensions is currently
missing basic rate configuration, fix this by moving
the code to generate the default to the common code
that gets invoked for both nl80211 and wext.
Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Bruno Randolf [Mon, 27 Sep 2010 04:02:40 +0000 (13:02 +0900)]
ath5k: Fix bitmasks and typos for PCU Diagnostic register
As reported by Ryan Niemi, some bitmasks in the register definition for the PCU
Diagnostic register (DIAG_SW) were missing a zero at the end. While at it fix
some typos and add more comments.
Signed-off-by: Bruno Randolf <br1@einfach.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Bruno Randolf [Mon, 27 Sep 2010 03:22:26 +0000 (12:22 +0900)]
ath5k: Increase "fudge" for beacon timers
We use FUDGE to make sure the next TBTT is ahead of the current TU.
Since we later substract AR5K_TUNE_SW_BEACON_RESP (10) in the timer
configuration we need to make sure it is bigger than that.
Signed-off-by: Bruno Randolf <br1@einfach.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Bruno Randolf [Mon, 27 Sep 2010 03:22:21 +0000 (12:22 +0900)]
ath5k: Check and fix ATIM window
This patch adds sanity-checks for the beacon timers and especially the ATIM
window to ath5k. It is basically the same what i did for madwifi two years ago
and fixes a problem in IBSS mode which has been described as "ramping" pings.
See the code comments for a more detailed description and these links:
David Miller complained about the driver's excessive use
of variables in __packed structs. While I did not fully
agree with his sole "performance" argument on all accounts.
I do see some room for improvement in hot-paths on
architectures without an efficient access to unaligned
elements.
This first patch (dare I say?) optimizes an important tx
hot-path in the driver: carl9170_tx_prepare.
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch removes some cruft, which survived
the RFC review phase.
Originally, carl9170_tx_ampdu_queue erroneously
dropped a lot of frames. As a result the ampdu
scheduler bogged down quite frequently and the
affected BA session timed out.
However this bug has been fixed and the WA and
its debugfs counter is no longer useful.
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
802.11n-2009 demands in 11.2.1: "
When a STA enters normal (non-APSD) PS mode, any downlink
Block ACK agreement without an associated schedule is
suspended for the duration of this PS mode."
The operative word is "suspended" and not terminated.
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
mac80211: fix offchannel assumption upon association
Association is dealt with as an atomic offchannel operation,
we do this because we don't know we are associated until we
get the associatin response from the AP. When we do get the
associatin response though we were never clearing the offchannel
state. This has a few implications, we told drivers we were
still offchannel, and the first configured TX power for the
channel does not take into account any power constraints.
For ath9k this meant ANI calibration would not start upon
association, and we'd have to wait until the first bgscan
to be triggered. There may be other issues this resolves
but I'm too lazy to comb the code to check.
Cc: stable@kernel.org Cc: Amod Bodas <amod.bodas@atheros.com> Cc: Vasanth Thiagarajan <vasanth.thiagarajan@atheros.com> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
iwl3945: queue the right work if the scan needs to be aborted
iwl3945's scan_completed calls into the mac80211 stack which triggers a
warn on if there is no scan outstanding.
This can be avoided by not calling scan_completed but abort_scan in
iwl3945_request_scan in the done: branch of the function which is used
as an error out.
The done: branch seems to be an error-out branch, as, for example, if
iwl_is_ready(priv) returns false the done: branch is executed.
NOTE:
I'm not familiar with the driver at all.
I just quickly scanned as a reaction to
https://bugzilla.kernel.org/show_bug.cgi?id=17722
the users of scan_completed in the iwl3945 driver and noted the odd
discrepancy between the comment above this instance and the comment in
mac80211 scan_completed function.
Signed-off-by: Florian Mickler <florian@mickler.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Randy Dunlap [Tue, 28 Sep 2010 17:34:27 +0000 (10:34 -0700)]
pch_gbe: add header files
Fix build errors, more header files needed.
drivers/net/pch_gbe/pch_gbe_main.c:965: error: implicit declaration of function 'tcp_hdr'
drivers/net/pch_gbe/pch_gbe_main.c:965: error: invalid type argument of '->' (have 'int')
drivers/net/pch_gbe/pch_gbe_main.c:968: error: invalid type argument of '->' (have 'int')
drivers/net/pch_gbe/pch_gbe_main.c:976: error: implicit declaration of function 'udp_hdr'
drivers/net/pch_gbe/pch_gbe_main.c:976: error: invalid type argument of '->' (have 'int')
drivers/net/pch_gbe/pch_gbe_main.c:980: error: invalid type argument of '->' (have 'int')
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
John W. Linville [Mon, 27 Sep 2010 18:00:51 +0000 (14:00 -0400)]
wl12xx: fix separate-object-folder builds
Make this go away (happens when building with a separate object
directory):
Assembler messages:
Fatal error: can't create drivers/net/wireless/wl12xx/.tmp_wl12xx_platform_data.o: No such file or directory
drivers/net/wireless/wl12xx/wl12xx_platform_data.c: In function 'wl12xx_get_platform_data':
drivers/net/wireless/wl12xx/wl12xx_platform_data.c:28: error: cannot open drivers/net/wireless/wl12xx/.tmp_wl12xx_platform_data.gcno
drivers/net/wireless/wl12xx/wl12xx_platform_data.c:28: confused by earlier errors, bailing out
Signed-off-by: John W. Linville <linville@tuxdriver.com> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Documentation: Update Phonet doc for Pipe Controller implementation
Updates the Phonet document with description related to Pipe controller
implementation
Signed-off-by: Kumar Sanghvi <kumar.sanghvi@stericsson.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
projects / linux-beck.git / log