Dean Nelson [Thu, 25 Aug 2011 14:39:24 +0000 (14:39 +0000)]
e1000: save skb counts in TX to avoid cache misses
Virtual Machines with emulated e1000 network adapter running on Parallels'
server were seeing kernel panics due to the e1000 driver dereferencing an
unexpected NULL pointer retrieved from buffer_info->skb.
The problem has been addressed for the e1000e driver, but not for the e1000.
Since the two drivers share similar code in the affected area, a port of the
following e1000e driver commit solves the issue for the e1000 driver:
e1000e: save skb counts in TX to avoid cache misses
In e1000_tx_map, precompute number of segements and bytecounts which
are derived from fields in skb; these are stored in buffer_info. When
cleaning tx in e1000_clean_tx_irq use the values in the associated
buffer_info for statistics counting, this eliminates cache misses
on skb fields.
Signed-off-by: Dean Nelson <dnelson@redhat.com> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Yaniv Rosner [Tue, 23 Aug 2011 06:33:24 +0000 (06:33 +0000)]
bnx2x: Add new PHY BCM54616
The BCM54616 PHY is very similar to the 54618SE, only without EEE support, which will not be activated due to querying the actual PHY type.
This check is already done by reading a dedicated PHY register.
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>
Michal Schmidt [Tue, 23 Aug 2011 06:15:32 +0000 (06:15 +0000)]
bnx2x: resurrect RX hashing
bnx2x used to be able to set rxhash, but this was lost in the conversion
to hw_features (commit 66371c441).
Restore it and enable it by default.
Signed-off-by: Michal Schmidt <mschmidt@redhat.com> CC: Vladislav Zolotarov <vladz@broadcom.com> CC: Eilon Greenstein <eilong@broadcom.com> CC: Dmitry Kravkov <dmitry@broadcom.com> CC: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
Ian Campbell [Wed, 24 Aug 2011 22:28:15 +0000 (22:28 +0000)]
fcoe: convert to SKB paged frag API.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Robert Love <robert.w.love@intel.com> Cc: "James E.J. Bottomley" <JBottomley@parallels.com> Cc: devel@open-fcoe.org Cc: linux-scsi@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
Ian Campbell [Wed, 24 Aug 2011 22:28:13 +0000 (22:28 +0000)]
bnx2x: convert to SKB paged frag API.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Eilon Greenstein <eilong@broadcom.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
Ian Campbell [Wed, 24 Aug 2011 22:28:12 +0000 (22:28 +0000)]
bnx2: convert to SKB paged frag API.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Michael Chan <mchan@broadcom.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
Ian Campbell [Wed, 24 Aug 2011 22:28:11 +0000 (22:28 +0000)]
tg3: convert to SKB paged frag API.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Matt Carlson <mcarlson@broadcom.com> Cc: Michael Chan <mchan@broadcom.com> Cc: netdev@vger.kernel.org Cc: devicetree-discuss@lists.ozlabs.org Signed-off-by: David S. Miller <davem@davemloft.net>
Ian Campbell [Wed, 24 Aug 2011 22:28:10 +0000 (22:28 +0000)]
IPoIB: convert to SKB paged frag API.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Roland Dreier <roland@kernel.org> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Cc: linux-rdma@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
Ian Campbell [Wed, 24 Aug 2011 22:28:09 +0000 (22:28 +0000)]
IB: nes: convert to SKB paged frag API.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Faisal Latif <faisal.latif@intel.com> Cc: Roland Dreier <roland@kernel.org> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Cc: linux-rdma@vger.kernel.org Cc: netdev@vger.kernel.org Acked-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ian Campbell [Wed, 24 Aug 2011 22:28:08 +0000 (22:28 +0000)]
IB: amso1100: convert to SKB paged frag API.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Tom Tucker <tom@opengridcomputing.com> Cc: Steve Wise <swise@opengridcomputing.com> Cc: Roland Dreier <roland@kernel.org> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Cc: linux-rdma@vger.kernel.org Cc: netdev@vger.kernel.org Acked-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ian Campbell [Wed, 24 Aug 2011 22:28:07 +0000 (22:28 +0000)]
atm: convert to SKB paged frag API.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Chas Williams <chas@cmf.nrl.navy.mil> Cc: linux-atm-general@lists.sourceforge.net Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Wed, 24 Aug 2011 18:46:06 +0000 (18:46 +0000)]
headers, can: Add missing #include to <linux/can/bcm.h>
<linux/can/bcm.h> uses type canid_t, defined in <linux/can.h>.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Tim Chen [Mon, 22 Aug 2011 14:57:26 +0000 (14:57 +0000)]
Scm: Remove unnecessary pid & credential references in Unix socket's send and receive path
Patch series 109f6e39..7361c36c back in 2.6.36 added functionality to
allow credentials to work across pid namespaces for packets sent via
UNIX sockets. However, the atomic reference counts on pid and
credentials caused plenty of cache bouncing when there are numerous
threads of the same pid sharing a UNIX socket. This patch mitigates the
problem by eliminating extraneous reference counts on pid and
credentials on both send and receive path of UNIX sockets. I found a 2x
improvement in hackbench's threaded case.
On the receive path in unix_dgram_recvmsg, currently there is an
increment of reference count on pid and credentials in scm_set_cred.
Then there are two decrement of the reference counts. Once in scm_recv
and once when skb_free_datagram call skb->destructor function
unix_destruct_scm. One pair of increment and decrement of ref count on
pid and credentials can be eliminated from the receive path. Until we
destroy the skb, we already set a reference when we created the skb on
the send side.
On the send path, there are two increments of ref count on pid and
credentials, once in scm_send and once in unix_scm_to_skb. Then there
is a decrement of the reference counts in scm_destroy's call to
scm_destroy_cred at the end of unix_dgram_sendmsg functions. One pair
of increment and decrement of the reference counts can be removed so we
only need to increment the ref counts once.
By incorporating these changes, for hackbench running on a 4 socket
NHM-EX machine with 40 cores, the execution of hackbench on
50 groups of 20 threads sped up by factor of 2.
Hackbench command used for testing:
./hackbench 50 thread 2000
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This patch implements Proportional Rate Reduction (PRR) for TCP.
PRR is an algorithm that determines TCP's sending rate in fast
recovery. PRR avoids excessive window reductions and aims for
the actual congestion window size at the end of recovery to be as
close as possible to the window determined by the congestion control
algorithm. PRR also improves accuracy of the amount of data sent
during loss recovery.
The patch implements the recommended flavor of PRR called PRR-SSRB
(Proportional rate reduction with slow start reduction bound) and
replaces the existing rate halving algorithm. PRR improves upon the
existing Linux fast recovery under a number of conditions including:
1) burst losses where the losses implicitly reduce the amount of
outstanding data (pipe) below the ssthresh value selected by the
congestion control algorithm and,
2) losses near the end of short flows where application runs out of
data to send.
As an example, with the existing rate halving implementation a single
loss event can cause a connection carrying short Web transactions to
go into the slow start mode after the recovery. This is because during
recovery Linux pulls the congestion window down to packets_in_flight+1
on every ACK. A short Web response often runs out of new data to send
and its pipe reduces to zero by the end of recovery when all its packets
are drained from the network. Subsequent HTTP responses using the same
connection will have to slow start to raise cwnd to ssthresh. PRR on
the other hand aims for the cwnd to be as close as possible to ssthresh
by the end of recovery.
A description of PRR and a discussion of its performance can be found at
the following links:
- IETF Draft:
http://tools.ietf.org/html/draft-mathis-tcpm-proportional-rate-reduction-01
- IETF Slides:
http://www.ietf.org/proceedings/80/slides/tcpm-6.pdf
http://tools.ietf.org/agenda/81/slides/tcpm-2.pdf
- Paper to appear in Internet Measurements Conference (IMC) 2011:
Improving TCP Loss Recovery
Nandita Dukkipati, Matt Mathis, Yuchung Cheng
Signed-off-by: Nandita Dukkipati <nanditad@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
1) Blocks can be configured with non-static frame-size.
2) Read/poll is at a block-level(as opposed to packet-level).
3) Added poll timeout to avoid indefinite user-space wait on idle links.
4) Added user-configurable knobs:
4.1) block::timeout.
4.2) tpkt_hdr::sk_rxhash.
Changes:
C1) tpacket_rcv()
C1.1) packet_current_frame() is replaced by packet_current_rx_frame()
The bulk of the processing is then moved in the following chain:
packet_current_rx_frame()
__packet_lookup_frame_in_block
fill_curr_block()
or
retire_current_block
dispatch_next_block
or
return NULL(queue is plugged/paused)
Signed-off-by: Chetan Loke <loke.chetan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This patch provides base support for transmission of IPv6 packets as
well as the formation of IPv6 link-local addresses and statelessly
autoconfigured addresses on top of IEEE 802.15.4 networks.
For more information please look at the RFC4944 "Compression Format
for IPv6 Datagrams in Low Power and Losst Networks (6LoWPAN).
Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ian Campbell [Mon, 22 Aug 2011 23:45:01 +0000 (23:45 +0000)]
net: xfrm: convert to SKB frag APIs
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
Ian Campbell [Mon, 22 Aug 2011 23:44:58 +0000 (23:44 +0000)]
net: convert core to skb paged frag APIs
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: "Michał Mirosław" <mirq-linux@rere.qmqm.pl> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
Sathya Perla [Mon, 22 Aug 2011 19:41:53 +0000 (19:41 +0000)]
be2net: fix erx->rx_drops_no_frags wrap around
The rx_drops_no_frags HW counter for RSS rings is 16bits in HW and can
wraparound often. Maintain a 32-bit accumulator in the driver to prevent
frequent wraparound.
Also, incorporated Eric's feedback to use ACCESS_ONCE() for the accumulator
write.
Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Sathya Perla [Mon, 22 Aug 2011 19:41:51 +0000 (19:41 +0000)]
be2net: Fix race in posting rx buffers.
There is a possibility of be_post_rx_frags() being called simultaneously from
both be_worker() (when rx_post_starved) and be_poll_rx() (when rxq->used is 0).
This can be avoided by posting rx buffers only when some completions have been
reaped.
Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Wed, 24 Aug 2011 10:41:19 +0000 (10:41 +0000)]
rps: support IPIP encapsulation
Skip IPIP header to get proper layer-4 information.
Like GRE tunnels, this only works if rxhash is not already provided by
the device itself (ethtool -K ethX rxhash off), to allow kernel compute
a software rxhash.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ian Campbell [Fri, 19 Aug 2011 06:25:00 +0000 (06:25 +0000)]
net: add APIs for manipulating skb page fragments.
The primary aim is to add skb_frag_(ref|unref) in order to remove the use of
bare get/put_page on SKB pages fragments and to isolate users from subsequent
changes to the skb_frag_t data structure.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: "Michał Mirosław" <mirq-linux@rere.qmqm.pl> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Mon, 22 Aug 2011 19:43:22 +0000 (12:43 -0700)]
net: vlan: goto another_round instead of calling __netif_receive_skb
Now, when vlan tag on untagged in non-accelerated path is stripped from
skb, headers are reset right away. Benefit from that and avoid calling
__netif_receive_skb recursivelly and just use another_round.
Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jesper Juhl [Mon, 22 Aug 2011 18:30:38 +0000 (11:30 -0700)]
net/wan/hdlc_ppp: use break in switch
We'll either hit one of the case labels or the default in the switch
and in all cases do we then 'goto out' and we also have a 'goto out'
after the switch that is redundant. Change to just use break in the
case statements and leave the 'goto out' after the lop for everyone to
hit.
Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: David S. Miller <davem@davemloft.net>
batman-adv: print client flags in the local/global transtables output
Since clients can have several flags on or off, this patches make them
appear in the local/global transtable output so that they can be checked
for debugging purposes.
Signed-off-by: Antonio Quartulli <ordex@autistici.org> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
batman-adv: hash_add() has to discriminate on the return value
hash_add() returns 0 on success while returns -1 either on error and on
entry already present. The caller could use such information to select
its behaviour. For this reason it is useful that hash_add() returns -1
in case on error and returns 1 in case of entry already present.
Signed-off-by: Antonio Quartulli <ordex@autistici.org> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
This change allows to get driver specific debug messages output
providing a module parameter. As far as the maximum level of verbosity
is too high, it is demoted by default.
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Matt Carlson [Fri, 19 Aug 2011 13:58:24 +0000 (13:58 +0000)]
tg3: Update version to 3.120
This patch updates the tg3 version to 3.120.
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 [Fri, 19 Aug 2011 13:58:23 +0000 (13:58 +0000)]
tg3: Add external loopback support to selftest
This patch adds external loopback support to tg3's ethtool selftest.
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 [Fri, 19 Aug 2011 13:58:22 +0000 (13:58 +0000)]
tg3: Restructure tg3_test_loopback
The tg3_test_loopback() function is starting to get more complicated as
more loopback tests are added. This patch cleans up the code.
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 [Fri, 19 Aug 2011 13:58:21 +0000 (13:58 +0000)]
tg3: Pull phy int lpbk setup into separate func
This patch pulls out the internal phy loopback setup code into a
separate function. This cleans up the loopback test code and makes it
available for NETIF_F_LOOPBACK support later.
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 [Fri, 19 Aug 2011 13:58:20 +0000 (13:58 +0000)]
tg3: Consilidate MAC loopback code
The driver puts the device into MAC loopback in two places in the
driver. This patch consolidates the code into a single routine.
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 [Fri, 19 Aug 2011 13:58:19 +0000 (13:58 +0000)]
tg3: Remove dead code
Now that CPMU devices don't do MAC loopback, all the CPMU power saving
mode adjustments are unneeded. This patch removes the dead code.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Duyck [Wed, 29 Jun 2011 05:43:22 +0000 (05:43 +0000)]
ixgbe: Cleanup FCOE and VLAN handling in xmit_frame_ring
This change is meant to further cleanup the transmit path by streamlining
some of the VLAN and FCOE/DCB tasks in the transmit path. In addition it
adds code for support software VLANs in the event that they are used in
conjunction with DCB and/or FCOE.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Alexander Duyck [Fri, 15 Jul 2011 02:31:30 +0000 (02:31 +0000)]
ixgbe: replace reference to CONFIG_FCOE with IXGBE_FCOE
CONFIG_FCOE is not the correct define to check since it is possible for it
to be CONFIG_FCOE_MODULE, as such the reference to it should be replaced
with IXGBE_FCOE.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Alexander Duyck [Fri, 15 Jul 2011 02:31:25 +0000 (02:31 +0000)]
ixgbe: Refactor transmit map and cleanup routines
This patch implements a partial refactor of the TX map/queue and cleanup
routines. It merges the map and queue functionality and as a result
improves the transmit performance by avoiding unnecessary reads from memory.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Amir Hanania [Thu, 28 Apr 2011 08:47:23 +0000 (08:47 +0000)]
ixgbe - DDP last user buffer - error to warn
Change the error message in the last DDP user buffer to warn_once
Signed-off-by: Amir Hanania <amir.hanania@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Sorin Dumitru <sdumitru@ixiacom.com> Signed-off-by: Daniel Baluta <dbaluta@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Bruce Allan [Fri, 29 Jul 2011 05:53:12 +0000 (05:53 +0000)]
e1000e: bump driver version number
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Bruce Allan [Fri, 22 Jul 2011 06:21:46 +0000 (06:21 +0000)]
e1000e: convert driver to use extended descriptors
Some features currently not supported by the driver (e.g. RSS) require the
use of extended descriptors, but the driver is setup to only use legacy
descriptors in all modes except for when jumbo frames are enabled on some
parts. Convert the driver to always use extended descriptors in order to
enable the forthcoming support of these other features.
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>
Changli Gao [Fri, 19 Aug 2011 05:07:54 +0000 (22:07 -0700)]
net: rps: support 802.1Q
For the 802.1Q packets, if the NIC doesn't support hw-accel-vlan-rx, RPS
won't inspect the internal 4 tuples to generate skb->rxhash, so this kind
of traffic can't get any benefit from RPS.
This patch adds the support for 802.1Q to RPS.
Signed-off-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Michal Schmidt [Fri, 19 Aug 2011 04:51:01 +0000 (21:51 -0700)]
bnx2x: downgrade Max BW error message to debug
There are valid configurations where Max BW is configured to zero for
some VNs.
Print the message only if debugging is enabled and do not call the
configuration "illegal".
[v2: use DP(), not BNX2X_DBG_ERR(); recommended by Eilon Greenstein.]
Signed-off-by: Michal Schmidt <mschmidt@redhat.com> Acked-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
The conversion was incomplete so that even if the driver was added to
the .config it wasn't built, but there were no errors). In this commit
we also update the various defconfigs that use EMAC to use the new
Kconfig symbol, and explicitly add the NET_VENDOR_IBM guard.
We do not explicitly select the Kconfig dependencies, as this would force
EMAC on. Doing it in the defconfig allows more flexibility.
Tested on a canyondlands board.
Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Fri, 19 Aug 2011 04:29:27 +0000 (21:29 -0700)]
vlan: reset headers on accel emulation path
It's after all necessary to do reset headers here. The reason is we
cannot depend that it gets reseted in __netif_receive_skb once skb is
reinjected. For incoming vlanids without vlan_dev, vlan_do_receive()
returns false with skb != NULL and __netif_reveive_skb continues, skb is
not reinjected.
This might be good material for 3.0-stable as well
Reported-by: Mike Auty <mike.auty@gmail.com> Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 18 Aug 2011 06:50:37 +0000 (23:50 -0700)]
forcedeth: call vlan_mode only if hw supports vlans
If hw does not support vlans, dont call nv_vlan_mode because it has no point.
I believe that this should fix issues on older non-vlan supportive
chips (like Ingo has).
Reported-ty: Ingo Molnar <mingo@elte.hu> Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
holt@sgi.com [Tue, 16 Aug 2011 17:32:24 +0000 (17:32 +0000)]
flexcan: Add flexcan device support for p1010rdb.
Allow the p1010 processor to select the flexcan network driver.
Signed-off-by: Robin Holt <holt@sgi.com> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>, Acked-by: Wolfgang Grandegger <wg@grandegger.com>, Cc: U Bhaskar-B22300 <B22300@freescale.com> Cc: socketcan-core@lists.berlios.de, Cc: netdev@vger.kernel.org, Cc: PPC list <linuxppc-dev@lists.ozlabs.org> Cc: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: David S. Miller <davem@davemloft.net>
holt@sgi.com [Tue, 16 Aug 2011 17:32:23 +0000 (17:32 +0000)]
flexcan: Prefer device tree clock frequency if available.
If our CAN device's device tree node has a clock-frequency property,
then use that value for the can devices clock frequency. If not, fall
back to asking the platform/mach code for the clock frequency associated
with the flexcan device.
Signed-off-by: Robin Holt <holt@sgi.com> Acked-by: Wolfgang Grandegger <wg@grandegger.com>, Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Marc Kleine-Budde <mkl@pengutronix.de>, Cc: U Bhaskar-B22300 <B22300@freescale.com> Cc: Scott Wood <scottwood@freescale.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: socketcan-core@lists.berlios.de, Cc: netdev@vger.kernel.org, Cc: PPC list <linuxppc-dev@lists.ozlabs.org> Cc: devicetree-discuss@lists.ozlabs.org Signed-off-by: David S. Miller <davem@davemloft.net>
holt@sgi.com [Tue, 16 Aug 2011 17:32:22 +0000 (17:32 +0000)]
flexcan: Add of_match to platform_device definition.
On powerpc, the OpenFirmware devices are not matched without specifying
an of_match array. Introduce that array as that is used for matching
on the Freescale P1010 processor.
Signed-off-by: Robin Holt <holt@sgi.com> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Acked-by: Wolfgang Grandegger <wg@grandegger.com> Cc: U Bhaskar-B22300 <B22300@freescale.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: socketcan-core@lists.berlios.de Cc: netdev@vger.kernel.org Cc: PPC list <linuxppc-dev@lists.ozlabs.org> Cc: devicetree-discuss@lists.ozlabs.org Signed-off-by: David S. Miller <davem@davemloft.net>
holt@sgi.com [Tue, 16 Aug 2011 17:32:21 +0000 (17:32 +0000)]
flexcan: Fix up fsl-flexcan device tree binding.
This patch cleans up the documentation of the device-tree binding for
the Flexcan devices on Freescale's PowerPC and ARM cores. Extra
properties are not used by the driver so we are removing them.
Signed-off-by: Robin Holt <holt@sgi.com> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>, Acked-by: Wolfgang Grandegger <wg@grandegger.com>, Cc: U Bhaskar-B22300 <B22300@freescale.com> Cc: Scott Wood <scottwood@freescale.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: socketcan-core@lists.berlios.de, Cc: netdev@vger.kernel.org, Cc: PPC list <linuxppc-dev@lists.ozlabs.org> Cc: devicetree-discuss@lists.ozlabs.org Signed-off-by: David S. Miller <davem@davemloft.net>
holt@sgi.com [Tue, 16 Aug 2011 17:32:20 +0000 (17:32 +0000)]
flexcan: Abstract off read/write for big/little endian.
Make flexcan driver handle register reads in the appropriate endianess.
This was a basic search and replace and then define some inlines.
Signed-off-by: Robin Holt <holt@sgi.com> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Acked-by: Wolfgang Grandegger <wg@grandegger.com> Cc: U Bhaskar-B22300 <B22300@freescale.com> Cc: socketcan-core@lists.berlios.de Cc: netdev@vger.kernel.org Cc: PPC list <linuxppc-dev@lists.ozlabs.org> Signed-off-by: David S. Miller <davem@davemloft.net>
holt@sgi.com [Tue, 16 Aug 2011 17:32:19 +0000 (17:32 +0000)]
flexcan: Remove #include <mach/clock.h>
powerpc does not have a mach-####/clock.h. When testing, I found neither
arm nor powerpc needed the mach/clock.h at all so I removed it.
Signed-off-by: Robin Holt <holt@sgi.com> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Acked-by: Wolfgang Grandegger <wg@grandegger.com> Cc: U Bhaskar-B22300 <B22300@freescale.com> Cc: socketcan-core@lists.berlios.de Cc: netdev@vger.kernel.org Cc: PPC list <linuxppc-dev@lists.ozlabs.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Tue, 16 Aug 2011 06:29:00 +0000 (06:29 +0000)]
net: introduce IFF_UNICAST_FLT private flag
Use IFF_UNICAST_FTL to find out if driver handles unicast address
filtering. In case it does not, promisc mode is entered.
Patch also fixes following drivers:
stmmac, niu: support uc filtering and yet it propagated
ndo_set_multicast_list
bna, benet, pxa168_eth, ks8851, ks8851_mll, ksz884x : has set
ndo_set_rx_mode but do not support uc filtering
Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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