Eric Dumazet [Tue, 30 Nov 2010 21:45:56 +0000 (21:45 +0000)]
filter: add SKF_AD_RXHASH and SKF_AD_CPU
Add SKF_AD_RXHASH and SKF_AD_CPU to filter ancillary mechanism,
to be able to build advanced filters.
This can help spreading packets on several sockets with a fast
selection, after RPS dispatch to N cpus for example, or to catch a
percentage of flows in one queue.
tcpdump -s 500 "cpu = 1" :
[0] ld CPU
[1] jeq #1 jt 2 jf 3
[2] ret #500
[3] ret #0
# take 12.5 % of flows (average)
tcpdump -s 1000 "rxhash & 7 = 2" :
[0] ld RXHASH
[1] and #7
[2] jeq #2 jt 3 jf 4
[3] ret #1000
[4] ret #0
Joe Perches [Tue, 30 Nov 2010 08:18:44 +0000 (08:18 +0000)]
ehea: Use the standard logging functions
Remove ehea_error, ehea_info and ehea_debug macros.
Use pr_fmt, pr_<level>, netdev_<level> and netif_<level> as appropriate.
Fix messages to use trailing "\n", some messages had an extra one
as the old ehea_<level> macros added a trailing "\n".
Coalesced long format strings.
Michał Mirosław [Tue, 30 Nov 2010 06:38:00 +0000 (06:38 +0000)]
net: Fix too optimistic NETIF_F_HW_CSUM features
NETIF_F_HW_CSUM is a superset of NETIF_F_IP_CSUM+NETIF_F_IPV6_CSUM, but
some drivers miss the difference. Fix this and also fix UFO dependency
on checksumming offload as it makes the same mistake in assumptions.
Alexey Orishko [Mon, 29 Nov 2010 23:23:28 +0000 (23:23 +0000)]
USB CDC NCM host driver
The patch provides USB CDC NCM host driver support in the Linux Kernel.
Changes:
drivers/net/usb/cdc_ncm.c:
- initial submission of the CDC NCM host driver;
- verified on Intel 32/64 bit, Intel Atom, ST-Ericsson U8500 (ARM)
- throughput measured over 100 Mbits duplex;
- driver supports 16-bit NTB format only, but it is more than enough for
transfers up to 64K;
- driver can handle up to 32 datagrams in received NTB;
- timer is used to collect several packets in Tx direction
drivers/net/usb/Kconfig:
- a new entry to compile CDC NCM host driver
drivers/net/usb/Makefile:
- a new entry to compile CDC NCM host driver
Alexey Orishko [Mon, 29 Nov 2010 23:23:27 +0000 (23:23 +0000)]
usbnet: changes for upcoming cdc_ncm driver
Changes:
include/linux/usb/usbnet.h:
- a new flag to indicate driver's capability to accumulate IP packets in Tx
direction and extract several packets from single skb in Rx direction.
drivers/net/usb/usbnet.c:
- the procedure of counting packets in usbnet was updated due to the
accumulating of IP packets in the driver
- no short packets are sent if indicated by the flag in driver_info
structure
Matt Carlson [Mon, 6 Dec 2010 08:28:52 +0000 (08:28 +0000)]
tg3: Minor EEE code tweaks
The first hunk of this patch makes sure that the driver checks for the
appropriate preconditions before checking if EEE negotiation succeeded.
More specifically the link needs to be full duplex for EEE to be
enabled.
The second and third hunks of this patch fix a bug where the eee
advertisement register would be programmed with extra bits set.
The fourth hunk of this patch makes sure the EEE capability flag is not
set for 5718 A0 devices and that the device is not a serdes device.
None of these modifications are strictly necessary. The driver /
hardware still does the right thing. They are submitted primarily for
correctness.
Matt Carlson [Mon, 6 Dec 2010 08:28:51 +0000 (08:28 +0000)]
tg3: Fix 57765 EEE support
EEE support in the 57765 internal phy will not enable after a phy reset
unless it sees that EEE is supported in the MAC. This patch moves the
code that programs the CPMU EEE registers to a place before the phy
reset.
Matt Carlson [Mon, 6 Dec 2010 08:28:50 +0000 (08:28 +0000)]
tg3: Move EEE definitions into mdio.h
In commit 52b02d04c801fff51ca49ad033210846d1713253 entitled "tg3: Add
EEE support", Ben Hutchings had commented that the EEE advertisement
register will be in a standard location. This patch moves that
definition into mdio.h and changes the code to use it.
Matt Carlson [Mon, 6 Dec 2010 08:28:49 +0000 (08:28 +0000)]
tg3: Raise the jumbo frame BD flag threshold
The current transmit routines set the jumbo frame BD flag too
aggressively. This can reduce performance for common cases. This patch
raises the jumbo flag threshold to 1518, up from 1500.
Changli Gao [Mon, 29 Nov 2010 22:48:46 +0000 (22:48 +0000)]
net: don't reallocate skb->head unless the current one hasn't the needed extra size or is shared
skb head being allocated by kmalloc(), it might be larger than what
actually requested because of discrete kmem caches sizes. Before
reallocating a new skb head, check if the current one has the needed
extra size.
Don Skidmore [Fri, 3 Dec 2010 03:31:51 +0000 (03:31 +0000)]
ixgbe: fix link behavior for SFP+ when driver is brought down
We have had several requests to have ifconfig down command disable
the SFP+ laser and thus make link go down. Likewise on ifconfig up
the laser would be enabled and link would come up. This patch enables
that behavior.
Ben Hutchings [Thu, 2 Dec 2010 13:47:01 +0000 (13:47 +0000)]
sfc: Remove broken automatic fallback for invalid Falcon chip/board config
If the Falcon board config is invalid, we cannot proceed - we do not
have a valid board type to pass to falcon_probe_board(), and if we
kluge that to work with an unknown board then other initialisation
code will crash.
Steve Hodgson [Thu, 2 Dec 2010 13:46:55 +0000 (13:46 +0000)]
sfc: Fix event based MCDI completion and MC REBOOT/CMDDONE ordering issue
The mcfw *never* sends CMDDONE when rebooting. Changing this so that it always
sends CMDDONE *before* REBOOT is easy on Siena, but it's not obvious that we
could guarantee to be able to implement this on future hardware.
Given this, I'm less convinced that the protocol should be changed.
To reiterate the failure mode: The driver sees this:
issue command
receive REBOOT event
Was that reboot event sent before the command was issued, or in
response to the command? If the former then there will be a subsequent
CMDDONE event, if the latter, then there will be no CMDDONE event.
Options to resolve this are:
1. REBOOT always completes an outstanding mcdi request, and we set
the credits count to ignore a subsequent CMDDONE event with
mismatching seqno.
2. REBOOT never completes an outstanding mcdi request. If there is
no CMDDONE event then we rely on the mcdi timeout code to complete
the outstanding request, incurring a 10s delay.
I'd argue that (2) is tidier, but that incurring a 10s delay is a little
needless. Let's go with (1).
Ben Hutchings [Thu, 2 Dec 2010 13:46:37 +0000 (13:46 +0000)]
sfc: Clear RXIN_SEL when soft-resetting QT2025C
When we enable PMA/PMD loopback this automatically sets RXIN_SEL
(inverse polarity for RXIN). We need to clear that bit during the
soft-reset sequence, as it is not done automatically.
Ben Hutchings [Thu, 2 Dec 2010 13:46:24 +0000 (13:46 +0000)]
sfc: Distinguish critical and non-critical over-temperature conditions
Set both the 'maximum' and critical temperature limits for LM87
hardware monitors on Falcon boards. Do not shut down a port until the
critical temperature is reached, but warn as soon as the 'maximum'
temperature is reached.
Ben Hutchings [Thu, 2 Dec 2010 13:46:09 +0000 (13:46 +0000)]
sfc: Reduce log level for MCDI error response in efx_mcdi_rpc()
Some errors are expected, e.g. when sending new commands to an MC
running old firmware. Only the caller of efx_mcdi_rpc() can decide
what is a real error. Therefore log the error responses with
netif_dbg().
Allan Stephens [Tue, 30 Nov 2010 12:01:02 +0000 (12:01 +0000)]
tipc: Eliminate obsolete native API forwarding routines
Moves the content of each native API message forwarding routine
into the sole routine that calls it, since the forwarding routines
no longer be called in isolation. Also removes code in each routine
that altered the outgoing message's importance level since this is
now no longer possible.
The previous function mapping (parent function, and child API) was
as follows:
tipc_send2name
\--tipc_forward2name
tipc_send2port
\--tipc_forward2port
tipc_send_buf2port
\--tipc_forward_buf2port
After this commit, the children don't exist and their functionality
is completely in the respective parent.
Allan Stephens [Tue, 30 Nov 2010 12:00:58 +0000 (12:00 +0000)]
tipc: Remove support for TIPC mode change callback
Eliminates support for the callback routine invoked when TIPC
changes its mode of operation from inactive to standalone or from
standalone to networked. This callback was part of TIPC's obsolete
native API and is not used by TIPC internally.
Allan Stephens [Tue, 30 Nov 2010 12:00:57 +0000 (12:00 +0000)]
tipc: Delete useless function prototypes
Removes several function declarations that aren't used anywhere,
either because they reference routines that no longer exist or
because all users of the function reference it after it has already
been defined.
Allan Stephens [Tue, 30 Nov 2010 12:00:54 +0000 (12:00 +0000)]
tipc: Remove obsolete inclusions of header files
Gets rid of #include statements that are no longer required as a
result of the merging of obsolete native API header file content
into other TIPC include files.
Allan Stephens [Tue, 30 Nov 2010 12:00:53 +0000 (12:00 +0000)]
tipc: Remove obsolete native API files and exports
As part of the removal of TIPC's native API support it is no longer
necessary for TIPC to export symbols for routines that can be called
by kernel-based applications, nor for it to have header files that
kernel-based applications can include to access the declarations for
those routines. This commit eliminates the exporting of symbols by
TIPC and migrates the contents of each obsolete native API include
file into its corresponding non-native API equivalent.
The code which was migrated in this commit was migrated intact, in
that there are no technical changes combined with the relocation.
Tomoya [Mon, 29 Nov 2010 18:19:52 +0000 (18:19 +0000)]
can: EG20T PCH: Delete unnecessary spin_lock
Delete unnecessary spin_lock for accessing Message Object.
Since all message objects are divided into tx/rx area completely,
spin_lock processing is unnecessary.
Tomoya [Mon, 29 Nov 2010 18:11:52 +0000 (18:11 +0000)]
can: EG20T PCH: Separate Interface Register(IF1/IF2)
CAN register of Intel PCH EG20T has 2 sets of interface register.
To reduce whole of code size, separate interface register.
As a result, the number of function also can be reduced.
David S. Miller [Thu, 2 Dec 2010 20:14:29 +0000 (12:14 -0800)]
tcp: Add timewait recycling bits to ipv6 connect code.
This will also improve handling of ipv6 tcp socket request
backlog when syncookies are not enabled. When backlog
becomes very deep, last quarter of backlog is limited to
validated destinations. Previously only ipv4 implemented
this logic, but now ipv6 does too.
Now we are only one step away from enabling timewait
recycling for ipv6, and that step is simply filling in
the implementation of tcp_v6_get_peer() and
tcp_v6_tw_get_peer().
If ipip is built as a module the 'ip tunnel add' command would fail because
the ipip module was not being autoloaded. Adding an alias for
the tunl0 device name cause dev_load() to autoload it when needed.
If gre is built as a module the 'ip tunnel add' command would fail because
the ip_gre module was not being autoloaded. Adding an alias for
the gre0 device name cause dev_load() to autoload it when needed.
Dmitry Kravkov [Wed, 1 Dec 2010 20:39:28 +0000 (12:39 -0800)]
bnx2x: Add Nic partitioning mode (57712 devices)
NIC partitioning is another flavor of multi function - having few
PCI functions share the same physical port. Unlike the currently
supported mode of multi-function which depends on the switch
configuration and uses outer-VLAN, the NPAR mode is switch independent
and uses the MAC addresses to distribute incoming packets to the different
functions. This patch adds the specific HW setting of the NPAR mode
and some distinctions between switch dependent (SD) and
switch independent (SI) multi-function (MF) modes where the configuration
is not the same.
David S. Miller [Mon, 29 Nov 2010 21:37:14 +0000 (13:37 -0800)]
inet: Turn ->remember_stamp into ->get_peer in connection AF ops.
Then we can make a completely generic tcp_remember_stamp()
that uses ->get_peer() as a helper, minimizing the AF specific
code and minimizing the eventual code duplication when we implement
the ipv6 side of TW recycling.
Shan Wei [Mon, 29 Nov 2010 00:14:58 +0000 (00:14 +0000)]
sctp: kill unused macros in head file
1. SCTP_CMD_NUM_VERBS,SCTP_CMD_MAX
These two macros have never been used for several years since v2.6.12-rc2.
2.sctp_port_rover,sctp_port_alloc_lock
The commit 063930 abandoned global variables of port_rover and port_alloc_lock,
but still keep two macros to refer to them.
So, remove them now.
Tom Herbert [Fri, 26 Nov 2010 08:36:09 +0000 (08:36 +0000)]
xps: Add CONFIG_XPS
This patch adds XPS_CONFIG option to enable and disable XPS. This is
done in the same manner as RPS_CONFIG. This is also fixes build
failure in XPS code when SMP is not enabled.
Ursula Braun [Fri, 26 Nov 2010 02:41:19 +0000 (02:41 +0000)]
qeth: enable interface setup if LAN is offline
Device initialization of a qeth device contains a STARTLAN step.
This step may fail, if cable is not yet plugged in. The qeth device
stays in state HARDSETUP until cable is plugged in. This prevents
further preparational initialization steps of the qeth device and
its network interface. This patch makes sure initialization of qeth
device continues, even though cable is not yet plugged in.
Once carrier is available, qeth is notified, triggers a recovery
which results in a working network interface.
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