Commit Graph

64688 Commits

Author SHA1 Message Date
Jes Sorensen
dc254ca411 rtl8xxxu: Do not mask RF registers to 6 bits
Newer chips have RF registers beyond the original 0x3f address.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:42 +02:00
Jes Sorensen
a9ffa615aa rtl8xxxu: Remove unused len/cnt variables from rtl8xxxu_rx_complete()
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:41 +02:00
Jes Sorensen
796c554257 rtl8xxxu: Remove unused mgmt variable from rtl8xxxu_rx_complete()
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:41 +02:00
Jes Sorensen
53b381c4d7 rtl8xxxu: Set correct bit to reset MCU IO wrapper
All chips, except for 8812 require BIT(0) for resetting the MCU IO
wrapper. 8723b requires a more complicated reset sequence, so it will
need a custom reset function.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:40 +02:00
Jes Sorensen
a26703f39d rtl8xxxu: rtl8xxxu_set_linktype(): Be consistent aboutregister size REG_MSR
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:39 +02:00
Bruno Randolf
c85ea1156d rtl8xxxu: Enable data frame reception in rtl8xxxu_start
mac80211 documentation says, the ieee80211_ops.start callback "must turn on
frame reception (for possibly enabled monitor interfaces.)". If not a single
monitor interface does not receive data frames.

Similarly we should not change the data reception based on the association
state.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:38 +02:00
Jes Sorensen
755bda116e rtl8xxxu: Fix 80 character per line issue
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:37 +02:00
Jes Sorensen
124bc63c99 rtl8xxxu: Remove duplicate USB ID
Reported-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:36 +02:00
Bruno Randolf
b40027ba8d rtl8xxxu: Document REG_RXFLTMAP registers
Add comments describing how REG_RXFLTMAP0, REG_RXFLTMAP1 and REG_RXFLTMAP2
work.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:36 +02:00
Bruno Randolf
3bed4bfa51 rtl8xxxu: Enable monitor mode by handling filters
Monitor mode is enabled by handling the filter flags we get from mac80211 in
rtl8xxxu_configure_filter() and writing them to the RCR register.

By handling the filters, we can also stop setting the BSSID filters in the
association event.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:35 +02:00
Jes Sorensen
56e4374a5e rtl8xxxu: Fix cosmetics to quiet down checkpatch police
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:34 +02:00
Jakub Sitnicki
38451998fb rtl8xxxu: Use REG_EFUSE_TEST register only on multifunctional devices
rtl8192cu driver doesn't read/write the REG_EFUSE_TEST register.
Neither does the rtl8188eu driver.  Do it only for multifunc devices
RTL8723AU/RTL8723BU.

Signed-off-by: Jakub Sitnicki <jsitnicki@gmail.com>
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:33 +02:00
Jes Sorensen
e5c447ccf8 rtl8xxxu: Remove unused clutter for handling recursive calls to rtl8xxxu_init_device()
This was a leftover from the vendor driver that was never utilized.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:32 +02:00
Jes Sorensen
ce6f2e3669 rtl8xxxu: Add REG_OFDM0_RX_D_SYNC_PATH definitions
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:31 +02:00
Jes Sorensen
29c2139cd0 rtl8xxxu: Add mbox extension register definitions for 8723B
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:30 +02:00
Jes Sorensen
af9e4d6d9d rtl8xxxu: Add definitions for antenna selection registers for 8723BU
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:29 +02:00
Jes Sorensen
d48fe60e06 rtl8xxxu: Implement rtl8xxxu_reset_8051()
We need to reset the 8051 in order for it to launch the fw on the
rtl8192eu.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:28 +02:00
Tobias Klauser
98e27cbd94 rtl8xxxu: Check return value of kmemdup()
In rtl8xxxu_load_firmware() check the return value of kmemdup() and
error out with -ENOMEM in case of NULL to prevent a NULL pointer
dereference.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:27 +02:00
Tobias Klauser
c1edece3c2 rtl8xxxu: Fix typo in Kconfig help text
Fix spelling of "benefits".

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:27 +02:00
Jes Sorensen
22229fcb48 rtl8xxxu: Add more RCR bits
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:26 +02:00
Jes Sorensen
cecfd3cb29 rtl8xxxu: Add REG_TX_REPORT_* defines
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:25 +02:00
Jes Sorensen
f076977537 rtl8xxxu: Define SYS_CFG_SW_OFFLOAD_EN
This is needed for chips with IOL support.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:24 +02:00
Jes Sorensen
0635f8cede rtl8xxxu: Add RQPN_[NE]PQ_SHIFT values
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:23 +02:00
Jes Sorensen
216202ae20 rtl8xxxu: If fw running in RAM, reset the 8051 before trying to download a new one
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:22 +02:00
Jes Sorensen
ef1c049931 rtl8xxxu: rtl8xxxu_download_firmware(): Cosmetic cleanups
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:21 +02:00
Jes Sorensen
43154f6fd4 rtl8xxxu: Minor cleanup to rtl8xxxu_download_firmware()
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-25 11:55:20 +02:00
Diego Viola
ee50c130c8 net: jme: fix suspend/resume on JMC260
The JMC260 network card fails to suspend/resume because the call to
jme_start_irq() was too early, moving the call to jme_start_irq() after
the call to jme_reset_link() makes it work.

Prior this change suspend/resume would fail unless /sys/power/pm_async=0
was explicitly specified.

Relevant bug report: https://bugzilla.kernel.org/show_bug.cgi?id=112351

Signed-off-by: Diego Viola <diego.viola@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-24 23:58:21 -05:00
Guillaume Nault
555d5b70f1 ppp: clarify parsing of user supplied data in ppp_set_compress()
* Split big conditional statement.
  * Check (data.length <= CCP_MAX_OPTION_LENGTH) only once.
  * Don't read ccp_option[1] if not initialised.

Reading uninitialised ccp_option[1] was harmless, because this could
only happen when data.length was 0 or 1. So even then, we couldn't pass
the (ccp_option[1] < 2 || ccp_option[1] > data.length) test anyway.

Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-24 23:52:51 -05:00
Arnd Bergmann
4fee7dab07 bnx2x: add a separate GENEVE Kconfig symbol
When CONFIG_GENEVE is built as a loadable module, and bnx2x is built-in,
we get this link error:

drivers/net/built-in.o: In function `bnx2x_open':
:(.text+0x33322): undefined reference to `geneve_get_rx_port'
drivers/net/built-in.o: In function `bnx2x_sp_rtnl_task':
:(.text+0x3e632): undefined reference to `geneve_get_rx_port'

This avoids the problem by adding a separate Kconfig symbol named
CONFIG_BNX2X_GENEVE that is only enabled when the code is
reachable from the driver.

This is the same trick that BNX2X does for VXLAN support, and
is similar to how I40E handles both.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 883ce97d25 ("bnx2x: Add Geneve inner-RSS support")
Acked-By: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-24 22:48:54 -05:00
Stefan Assmann
46eafa59e1 igb: call ndo_stop() instead of dev_close() when running offline selftest
Calling dev_close() causes IFF_UP to be cleared which will remove the
interfaces routes and some addresses. That's probably not what the user
intended when running the offline selftest. Besides this does not happen
if the interface is brought down before the test, so the current
behaviour is inconsistent.
Instead call the net_device_ops ndo_stop function directly and avoid
touching IFF_UP at all.

Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-02-24 15:54:39 -08:00
Corinna Vinschen
030f9f5264 igb: Fix VLAN tag stripping on Intel i350
Problem: When switching off VLAN offloading on an i350, the VLAN
interface gets unusable.  For testing, set up a VLAN on an i350
and some remote machine, e.g.:

  $ ip link add link eth0 name eth0.42 type vlan id 42
  $ ip addr add 192.168.42.1/24 dev eth0.42
  $ ip link set dev eth0.42 up

Offloading is switched on by default:

  $ ethtool -k eth0 | grep vlan-offload
  rx-vlan-offload: on
  tx-vlan-offload: on

  $ ping -c 3 -I eth0.42 192.168.42.2
  [...works as usual...]

Now switch off VLAN offloading and try again:

  $ ethtool -K eth0 rxvlan off
  Actual changes:
  rx-vlan-offload: off
  tx-vlan-offload: off [requested on]
  $ ping -c 3 -I eth0.42 192.168.42.2
  PING 192.168.42.2 (192.168.42.2) from 192.168.42.1 eth0.42: 56(84) bytes of da
ta.

  --- 192.168.42.2 ping statistics ---
  3 packets transmitted, 0 received, 100% packet loss, time 1999ms

I can only reproduce it on an i350, the above works fine on a 82580.

While inspecting the igb source, I came across the code in igb_set_vmolr
which sets the E1000_VMOLR_STRVLAN/E1000_DVMOLR_STRVLAN flags once and
for all, and in all of the igb code there's no other place where the
STRVLAN is set or cleared.  Thus, VLAN stripping is enabled in igb
unconditionally, independently of the offloading setting.

I compared that to the latest Intel igb-5.3.3.5 driver from
http://sourceforge.net/projects/e1000/ which in fact sets and clears the
STRVLAN flag independently from igb_set_vmolr in its own function
igb_set_vf_vlan_strip, depending on the vlan settings.

So I included the STRVLAN handling from the igb-5.3.3.5 driver into our
current igb driver and tested the above scenario again.  This time ping
still works after switching off VLAN offloading.

Tested on i350, with and without addtional VFs, as well as on 82580
successfully.

Signed-off-by: Corinna Vinschen <vinschen@redhat.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-02-24 15:50:40 -08:00
Jon Maxwell
cc54a59ae6 igbvf: remove "link is Up" message when registering mcast address
A similar issue was addressed a few years ago in the following thread:

http://www.spinics.net/lists/netdev/msg245877.html

At that time there were concerns that removing this statement may cause other
side effects. However the submitter addressed those concerns. But the dialogue
went cold. We have a new case where a customers application is registering and
un-registering multicast addresses every few seconds. This is leading to many
"Link is Up" messages in the logs as a result of the
"netif_carrier_off(netdev)" statement called by igbvf_msix_other(). Also on
some kernels it is interfering with the bonding driver causing it to failover
and subsequently affecting connectivity.

The Sourgeforge driver does not make this call and is therefore not affected.
If there were any side effects I would expect that driver to also be affected.
I have tested re-loading the igbvf driver and downing the adapter with the PF
entity on the host where the VM has this patch. When I bring it back up again
connectivity is restored as expected. Therefore I request that this patch gets
submitted.

Signed-off-by: Jon Maxwell <jmaxwell37@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-02-24 15:45:50 -08:00
Alexander Duyck
ea6ce6024f igbvf: Add support for generic Tx checksums
This patch adds support for generic Tx checksums to the igbvf driver.  It
turns out this is actually pretty easy after going over the datasheet as we
were doing a number of steps we didn't need to.

In order to perform a Tx checksum for an L4 header we need to fill in the
following fields in the Tx descriptor:
  MACLEN (maximum of 127), retrieved from:
		skb_network_offset()
  IPLEN  (maximum of 511), retrieved from:
		skb_checksum_start_offset() - skb_network_offset()
  TUCMD.L4T indicates offset and if checksum or crc32c, based on:
		skb->csum_offset

The added advantage to doing this is that we can support inner checksum
offloads for tunnels and MPLS while still being able to transparently
insert VLAN tags.

I also took the opportunity to clean-up many of the feature flag
configuration bits to make them a bit more consistent between drivers.  In
the case of the VF drivers this meant adding support for SCTP CRCs, and
inner checksum offloads for MPLS and various tunnel types.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-02-24 15:42:33 -08:00
Alexander Duyck
6e03370088 igb: Add support for generic Tx checksums
This patch adds support for generic Tx checksums to the igb driver.  It
turns out this is actually pretty easy after going over the datasheet as we
were doing a number of steps we didn't need to.

In order to perform a Tx checksum for an L4 header we need to fill in the
following fields in the Tx descriptor:
  MACLEN (maximum of 127), retrieved from:
		skb_network_offset()
  IPLEN  (maximum of 511), retrieved from:
		skb_checksum_start_offset() - skb_network_offset()
  TUCMD.L4T indicates offset and if checksum or crc32c, based on:
		skb->csum_offset

The added advantage to doing this is that we can support inner checksum
offloads for tunnels and MPLS while still being able to transparently
insert VLAN tags.

I also took the opportunity to clean-up many of the feature flag
configuration bits to make them a bit more consistent between drivers.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-02-24 15:32:42 -08:00
Todd Fujinaka
c883de9fd7 igb: rename igb define to be more generic
E1000_MRQC_ENABLE_RSS_4Q enables 4 and 8 queues depending on the part
so rename to be generic.

Similarly, E1000_MRQC_ENABLE_VMDQ_RSS_2Q has no numeric meaning so
rename to be more generic.

Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-02-24 15:29:16 -08:00
Roland Hii
569f3b3d4e igb: add conditions for I210 to generate periodic clock output
In general case the maximum supported half cycle time of the synchronized
output clock is 70msec. Slower half cycle time than 70msec can be
programmed also as long as the output clock is synchronized to whole
seconds, useful specifically for generating a 1Hz clock.

Permitted values for the clock half cycle time are: 125,000,000 decimal,
250,000,000 decimal and 500,000,000 decimal (equals to 125msec, 250msec
and 500msec respectively).

Before this patch, only the half cycle time of less than or equal to 70msec
uses the I210 clock output function. This patch adds additional conditions
when half cycle time is equal to 125msec or 250msec or 500msec to use
clock output function.

Under other conditions, interrupt driven target time output events method
is still used to generate the desired clock output.

Signed-off-by: Roland Hii <roland.king.guan.hii@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-02-24 15:18:53 -08:00
Todd Fujinaka
5e350b9260 igb: enable WoL for OEM devices regardless of EEPROM setting
Override EEPROM settings for specific OEM devices.

Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-02-24 15:14:32 -08:00
Julia Lawall
5b70e4a12a igb: constify e1000_phy_operations structure
This e1000_phy_operations structure is never modified, so declare it as
const.  Other structures of this type are already const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-02-24 15:11:07 -08:00
Takuma Ueba
b72f3f7200 igb: When GbE link up, wait for Remote receiver status condition
I210 device IPv6 autoconf test sometimes fails,
because DAD NS for link-local is not transmitted.
This packet is silently dropped.
This problem is seen only GbE environment.

igb_watchdog_task link up detection continues to the following process.
The following cases are observed:
1.PHY 1000BASE-T Status Register Remote receiver status bit is NG.
(NG status becomes OK after about 200 - 700ms)
2.In this case, the transfer packet is silently dropped.

1000BASE-T Status register
[Expected]: 0x3800 or 0x7800
[problem occurred]: 0x2800 or 0x6800
Frequency of occurrence: approx 1/10 - 1/40 observed

In order to avoid this problem,
wait until 1000BASE-T Status register "Remote receiver status OK"

After applying this patch, at least 400 runs succeed with no problems.

Signed-off-by: Takuma Ueba <t.ueba11@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-02-24 14:56:42 -08:00
Raanan Avargil
9cd34b3a1c e1000e: Initial support for KabeLake
i219 (4) and i219 (5) are the next LOM generations that will be
available on the next Intel platform (KabeLake).
This patch provides the initial support for the devices.

Signed-off-by: Raanan Avargil <raanan.avargil@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-02-24 14:53:30 -08:00
Raanan Avargil
c5c6d07761 e1000e: Clear ULP configuration register on ULP exit
There have been bugs caused by HW ULP configuration settings not being
properly cleared after cable connect in V-Pro capable systems.
This caused HW to get out of sync occasionally.
The fix ensures that ULP settings are cleared in HW after
LAN cable re-connect.

Signed-off-by: Raanan Avargil <raanan.avargil@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-02-24 14:50:21 -08:00
Raanan Avargil
c26f40daf4 e1000e: Set HW FIFO minimum pointer gap for non-gig speeds
Based on feedback from HW team, the configured value of the internal PHY
HW FIFO pointer gap was incorrect for non-gig speeds.
This patch provides the correct configuration.

Signed-off-by: Raanan Avargil <raanan.avargil@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-02-24 14:47:12 -08:00
Raanan Avargil
74f31299a4 e1000e: Increase PHY PLL clock gate timing
Several packet loss issues were reported for which the root cause for
them was an incorrect configuration of internal HW PHY clock gating
mechanism by SW.
This patch provides the correct mechanism.

Signed-off-by: Raanan Avargil <raanan.avargil@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-02-24 14:44:01 -08:00
Raanan Avargil
6721e9d568 e1000e: Increase ULP timer
Due to system level changes introduced in Skylake, ULP exit takes
significantly longer to occur.  Therefore, driver must wait longer for.

Signed-off-by: Raanan Avargil <raanan.avargil@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-02-24 14:40:50 -08:00
Claudiu Manoil
48963b4492 gianfar: Remove redundant ops for do_tstamp from xmit()
Timestamp BD status updates that can be merged into the
same "do_tstamp" block, no need for extra save/restore
to the BD area.  The code is more readable too.

Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-24 16:55:58 -05:00
Claudiu Manoil
42f397adfc gianfar: Use skb_frag_t pointers inside xmit()
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-24 16:55:58 -05:00
Claudiu Manoil
e19d0839e7 gianfar: Map head TxBD first
Move the mapping of the head BD before the mapping of fragments.
The TOE (h/w offload) decision logic block can be also moved up
(as the TOE flag belongs to the head BD), resulting in more
localized code (TOE logic vs BD mapping code blocks).
Note that, for this h/w, the R (status) bit for the head BD of a S/G
frame needs to be written last for a reliable transmission.
For the fragmented skb case, a local variable is used to temporarily
store the status info of the first BD, replacing a BD status read.
A merge of 2 "if(do_tstamp)" blocks was also possible.

Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-24 16:55:58 -05:00
Rafał Miłecki
9e4e6206c6 bgmac: support Ethernet device on BCM47094 SoC
It needs very similar workarounds to the one on BCM4707. It was tested
on D-Link DIR-885L home router.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-24 15:33:58 -05:00
ajit.khaparde@broadcom.com
127bfce541 be2net: Fix a UE caused by passing large frames to the ASIC
In QnQ configurations like Flex-10 where the VLANs are inserted by the
ASIC, on rare occasions the HW is encountering a scenario where the
final frame length ends to be greater than what the ASIC can support.

This is because when the TXULP pulls the TX WRB to check the length
of the frame to be transmitted it also adds the size of VLANs to be
inserted by the HW to the length of the frame indicated in the WRB,
which in some cases fails the range check.  This causes a UE.

Avoid this by trimming the skb length to accommodate the VLAN insertion.

Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-24 15:25:19 -05:00
ajit.khaparde@broadcom.com
b0fd2eb28b be2net: Declare some u16 fields as u32 to improve performance
When 16-bit integers are loaded on CPUs with high order native
register sizes, the CPU could use some extra ops before using them.
And currently some of the frequently used fields in the driver like
the producer and consumer indices of the queues are declared as u16.

This patch declares such fields as u32.  With this change we see the
64-byte packets per second numbers improve by about 4%.

Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-24 15:25:19 -05:00