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From: Steve Hodgson <shodgson@solarflare.com>
Currently we initiate MAC stats DMA and busy-wait for completion when
stats are requested. We can improve on this with a periodic timer to
initiate and poll for stats, and opportunistically poll when stats are
requested.
Since efx_nic::stats_disable_count and efx_stats_{disable,enable}()
are Falcon-specific, rename them and move them accordingly.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Although efx_init_port() is only called at probe time and so cannot
race with port reconfiguration, most of the functions it calls can
expect to be called with the MAC lock held.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Avoid overrunning the hardware limit of 4 concurrent RX queue flushes.
Expand the queue flush state to support this. Make similar changes to
TX flushing to keep the code symmetric.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Put all static information in struct falcon_board_type and replace it
with a pointer in struct falcon_board. Simplify probing aocordingly.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Although all the defined fields in these registers are within 32 bits,
they are architecturally defined as 128-bit like most other Falcon
registers. In particular, we must use efx_reado() to ensure proper
locking when reading MD_STAT_REG.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
These were accidentally undersized by a factor of 2, which limited
performance.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In order to support all three modes of macvlan at
runtime, extend the existing netlink protocol
to allow choosing the mode per macvlan slave
interface.
This depends on a matching patch to iproute2
in order to become accessible in user land.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This allows each macvlan slave device to be in one
of three modes, depending on the use case:
MACVLAN_PRIVATE:
The device never communicates with any other device
on the same upper_dev. This even includes frames
coming back from a reflective relay, where supported
by the adjacent bridge.
MACVLAN_VEPA:
The new Virtual Ethernet Port Aggregator (VEPA) mode,
we assume that the adjacent bridge returns all frames
where both source and destination are local to the
macvlan port, i.e. the bridge is set up as a reflective
relay.
Broadcast frames coming in from the upper_dev get
flooded to all macvlan interfaces in VEPA mode.
We never deliver any frames locally.
MACVLAN_BRIDGE:
We provide the behavior of a simple bridge between
different macvlan interfaces on the same port. Frames
from one interface to another one get delivered directly
and are not sent out externally. Broadcast frames get
flooded to all other bridge ports and to the external
interface, but when they come back from a reflective
relay, we don't deliver them again.
Since we know all the MAC addresses, the macvlan bridge
mode does not require learning or STP like the bridge
module does.
Based on an earlier patch "macvlan: Reflect macvlan packets
meant for other macvlan devices" by Eric Biederman.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Patrick McHardy <kaber@trash.net>
Cc: Eric Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We have very similar code for rx statistics in
two places in the macvlan driver, with a third
one being added in the next patch.
Consolidate them into one function to improve
overall readability of the driver.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
The veth driver contains code to forward an skb
from the start_xmit function of one network
device into the receive path of another device.
Moving that code into a common location lets us
reuse the code for direct forwarding of data
between macvlan ports, and possibly in other
drivers.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
The velocity hardware can handle up to 7 memory segments. This can be
turned on and off via ethtool. The support was removed in commit
83c98a8cd04dd0f848574370594886ba3bf56750
but is re-enabled and cleaned up here. It's off by default.
Signed-off-by: Simon Kagstrom <simon.kagstrom@netinsight.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
The VIA driver has changed the default for the DMA_LENGTH_DEF parameter.
Together with adaptive interrupt supression and NAPI support, this
improves performance quite a bit
Signed-off-by: Simon Kagstrom <simon.kagstrom@netinsight.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds NAPI support for VIA velocity. The new velocity_poll
function also pairs tx/rx handling twice which improves perforamance on
some workloads (e.g., netperf UDP_STREAM) significantly (that part is
from the VIA driver).
Signed-off-by: Simon Kagstrom <simon.kagstrom@netinsight.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
(Partially from the upstream VIA driver). Tweaking the number of
frames-per-interrupt and timer-until-interrupt can reduce the amount of
CPU work quite a lot.
Signed-off-by: Simon Kagstrom <simon.kagstrom@netinsight.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
(From the VIA driver). The current code does not guarantee 64-byte
alignment since it simply does
int add = skb->data & 63;
skb->data += add;
(via skb_reserve). So for example, if the skb->data address would be
0x10, this would result in 32-byte alignment (0x10 + 0x10).
Correct by adding
64 - (skb->data & 63)
instead.
Signed-off-by: Simon Kagstrom <simon.kagstrom@netinsight.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
As side effect, consume less stack.
-rtl8169_get_mac_version [vmlinux]: 432
-rtl8169_init_one [vmlinux]: 376
+rtl8169_init_one [vmlinux]: 136
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Generated with the following semantic patch
@@
struct net *n1;
struct net *n2;
@@
- n1 == n2
+ net_eq(n1, n2)
@@
struct net *n1;
struct net *n2;
@@
- n1 != n2
+ !net_eq(n1, n2)
applied over {include,net,drivers/net}.
Signed-off-by: Octavian Purdila <opurdila@ixiacom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Define name tables for these enumerations in a similar way as for
loopback. Move the loopback name table together with them.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
All files that include ethtool.h, rx.h or tx.h are also including
efx.h, and there is no good reason to separate out the few
declarations they contain. Therefore fold them into efx.h.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
At some point these casts were used to remove const qualification, but
they are now unneeded.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is preparation for moving Falcon-specific state required by other
Falcon-specific code.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Rename struct efx_board to struct falcon_board.
Introduce and use inline function to look up board info from struct
efx_nic, in preparation for moving it.
Move board init and fini calls into NIC probe and remove functions.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
efx_board::init_leds was introduced as a second stage of
initialisation because of the inter-dependency between the board and
PHY. We want to move board initialisation into NIC probing, which is
too early to use MDIO, so SFN4111T initialisation also needs to be
split.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Only some PHYs have firmware support for a LED blink mode, so we
currently blink the others in a timer function. Since all PHYs have
simple on and off modes, we don't gain anything by using multiple
blink implementations. Also, since we have a process context there
is no need to use a timer.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This removes the need to use a label and goto, and makes the two
branches mirror each other more closely.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This function no longer has any common cleanup code.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Finish the job by removing the structure member.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Copied from original one-line patch here:
http://bugzilla.kernel.org/show_bug.cgi?id=14267#c26
(This is for 2.6.33 and beyond, where the bool was changed to a flag by
"cfg80211: convert bools into flags". -- JWL)
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Stall workaround doesn't work with bcm4320a devices like with bcm4320b.
This workaround actually causes more stalls/device freeze on bcm4320a.
Therefore disable stall workaround by default.
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
rndis_query_oid overwrites *len which stores buffer size to return full size
of received command and then uses *len with memcpy to fill buffer with
command.
Ofcourse memcpy should be done before replacing buffer size.
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Current blinking rate is calculated based on the difference between
current tx/rx byte counts and priv->led_tpt.
priv->led_tpt should not get reset in iwl_leds_init(), this function can be
called by bring interface "up" or "down", or when uCode sysassert occurred.
resetting the led_tpt parameter will introduce incorrect led blinking behavior.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Change error message for command queue full
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Acked-by: Ben Cahill <ben.m.cahill@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
To help iwlagn uCode debugging, event log will dump to syslog when driver
detect uCode error occurred, but this only happen when compile with
CONFIG_IWLWIFI_DEBUG and debug flag is enabled; which is not always
the case. Also, there is another problem, if the flag is set, the entire
event log buffer will be dump to syslog, it can flood the syslog and
make it very difficult to debug the problem.
Change the default to only dump last 20 entries of event log to syslog
unless the following condition meets:
1. both compile with CONFIG_IWLWIFI_DEBUG and debug flag
is enabled, and then dump the entire event buffer to syslog.
2. dump event log request from debugfs
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Acked-by: Ben Cahill <ben.m.cahill@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
When we get a state change of associated or not, we need to tell the
ucode via the RX_ON command using the filter flags. This will prevent
the ucode from sending any packets when not associated, specifically not
sending NULL QOS packets after a deauthentication which causes the AP to
repeatedly send deauth's in some situations.
Signed-off-by: Jay Sternberg <jay.e.sternberg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
