David S. Miller [Fri, 6 Jun 2014 19:55:37 +0000 (12:55 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/jkirsher/net-next
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates 2014-06-06
This series contains updates to i40e and i40evf.
Shannon sets the lan_veb index when the Virtual Ethernet Bridge (VEB) is
created for the basic LAN device and its Virtual Switch Interfaces (VSIs).
Also adds the VEB/VSI statistics in the ethtool stats output. Increases the
reset wait time because the original time was too optimistic and resets
were failing after EMPR. This won't delay the actual wait, just allows
us to poll more times as needed. He fixes the attempted removal of the
HMC space and unhook IRQs when a reset recovery fails because the HMC space
never got setup and IRQs are already unhooked in the first place, so the
removal is not necessary.
Jesse adds a log message for pre-production hardware so that the user is
notified that there may be issues with the hardware, yet does not prevent
the user from using the hardware. Add the printing of link messages
in the i40e driver like all the other Intel Ethernet drivers.
Mitch makes log message changes to i40evf to prevent confusion by making
the most common messages less scary by lowering them to a less terrifying
log level. This is due to the fact that depending on the timing of what
the PF driver is doing, it may take a few tries before the VF driver is able
to communicate with the PF driver on init or reset recovery.
Kamil provides a change to prevent the driver from getting into a endless
loop while trying to send GetVersion AQ command, since BO silicon blocks
AQ registers when in Blank Flash mode. So introduce a simple check for a
correct value in one of the AQ registers to be sure that AQ was configured
correctly.
Matt adds a function which indicates our intention to enable or disable a
particular transmit queue. Also adds a function to notify the device's
transmit unit that we are about to enable or disable a transmit queue.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Catherine Sullivan [Wed, 23 Apr 2014 04:50:17 +0000 (04:50 +0000)]
i40e/i40evf: Bump build version
Bump i40e to 0.4.3 and i40evf to 0.9.27.
Change-ID: I4141e9f8615bdcfa3b1b5ecbc2ac62603a03b7ad
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Shannon Nelson [Wed, 23 Apr 2014 04:50:16 +0000 (04:50 +0000)]
i40e: remove irqs only when they are set up
Use an extra state variable to keep track of when the IRQs are fully
set up. This keeps us from trying to unhook IRQs that already were
left unhooked in a failed reset recovery, e.g. when firmware is broken.
Change-ID: I073eb081e4ef8aedcbdf1ee0717c0ed64fa172f2
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Shannon Nelson [Wed, 23 Apr 2014 04:50:13 +0000 (04:50 +0000)]
i40e: don't remove HMC that doesn't exist
If a reset recovery failed (e.g. firmware is broken), the HMC space won't
get set up. We don't need to try to delete it if it didn't get set up.
This stops some needless error messages when we already know we need to
just tear things down.
Change-ID: Iac600481765e20b136052b43a544e55d7870268b
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jesse Brandeburg [Wed, 23 Apr 2014 04:50:12 +0000 (04:50 +0000)]
i40e: print full link message
The i40e driver should print link messages like all the
other Intel Ethernet drivers.
Change-ID: Ia88bdb96794e17a3962fcea94db176de01f921f7
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Shannon Nelson [Wed, 23 Apr 2014 04:50:09 +0000 (04:50 +0000)]
i40e: add xcast stats for port
Add the missing unicast, multicast, and broadcast stats for the port.
Change-ID: Ifc366d7b7745f70eaac9d00eeb0694eb9ec076a9
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Shannon Nelson [Wed, 23 Apr 2014 04:50:07 +0000 (04:50 +0000)]
i40e: add vsi x-cast stats
Add VSI HW stats for unicast, multicast, and broadcast for Rx and Tx.
Stop printing the netdev multicast value because it doesn't include Tx
and would be confusing.
Change-ID: I08278b6657e7c838fd29a4a1f305f78fe1b150be
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Shannon Nelson [Wed, 23 Apr 2014 04:50:06 +0000 (04:50 +0000)]
i40e: increase reset wait time
The wait time was originally too optimistic and the resets were failing
after EMPR. This increases the loop count to wait considerably longer.
This won't delay the actual wait longer than really needed, just allows
us to poll more times as needed.
Change-ID: If7b96f55cc25b8d06cbbe8665259d250188c53d7
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Matt Jared [Wed, 23 Apr 2014 04:50:03 +0000 (04:50 +0000)]
i40e/i40evf: add Tx pre queue disable function
Add a function which indicates our intention to enable or disable a particular
Tx queue. Also add a function to notify the device's Tx unit that we're about
to enable or disable a Tx queue.
Change-ID: I6adf3cbb5bb3e3c984d1ec969e06577c19ef296d
Signed-off-by: Matt Jared <matthew.a.jared@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Kamil Krawczyk [Wed, 23 Apr 2014 04:50:02 +0000 (04:50 +0000)]
i40e/i40evf: check AQ register for valid data
B0 Si blocks AQ registers when in Blank Flash mode - write is dropped,
read gives 0xDEADBEEF. Introduce a simple check for a correct value in one
of the AQ registers to be sure that AQ was configured correctly.
Without this check we get into an endless loop while trying to send
GetVersion AQ cmd.
Change-ID: I00102b8c5fa6c16d14289be677aafadf87f10f0d
Signed-off-by: Kamil Krawczyk <kamil.krawczyk@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Mitch Williams [Wed, 23 Apr 2014 04:50:00 +0000 (04:50 +0000)]
i40evf: make messages less dire
Depending on the timing of what the PF driver is doing, it make take a
few tries before the VF driver is able to communicate with the PF driver
on init or reset recovery. In order to prevent confusion, make the most
common messages less scary by lowering them to a less terrifying log
level and indicate that the driver will retry.
Change-ID: I1ec22aa59a68f4469aabe14775a1bfc1ab4b7f2f
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jesse Brandeburg [Wed, 23 Apr 2014 04:49:57 +0000 (04:49 +0000)]
i40e: print message for pre-production hardware
The driver and hardware are not expected to work correctly
with revision_id 0 hardware. Don't prevent the user from
using it, but be sure to print a warning.
Change-ID: I3712d34752bfad458078a5f35dfd0aa0ae9fd20e
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Shannon Nelson [Wed, 23 Apr 2014 04:49:55 +0000 (04:49 +0000)]
i40e: add VEB stats to ethtool
Print the VEB statistics in the ethtool stats output.
Change-ID: Ic93d4c3922345c43e4cfd7f7e7a906844dd2f49f
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Shannon Nelson [Wed, 23 Apr 2014 04:49:54 +0000 (04:49 +0000)]
i40e: set lan_veb index
When the VEB is created for the basic LAN device and its VSIs, we need to
set the tracking lan_veb index for later use.
Change-ID: I66bb74993bbda3621ca557437cb4b3517f9b315b
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Sven Wegener [Thu, 29 May 2014 20:27:06 +0000 (20:27 +0000)]
ipv6: Shrink udp_v6_mcast_next() to one socket variable
To avoid the confusion of having two variables, shrink the function to
only use the parameter variable for looping.
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 5 Jun 2014 23:22:02 +0000 (16:22 -0700)]
Merge git://git./linux/kernel/git/davem/net
Conflicts:
drivers/net/xen-netback/netback.c
net/core/filter.c
A filter bug fix overlapped some cleanups and a conversion
over to some new insn generation macros.
A xen-netback bug fix overlapped the addition of multi-queue
support.
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexei Starovoitov [Thu, 5 Jun 2014 21:39:36 +0000 (14:39 -0700)]
net: filter: fix SKF_AD_PKTTYPE extension on big-endian
BPF classic->internal converter broke SKF_AD_PKTTYPE extension, since
pkt_type_offset() was failing to find skb->pkt_type field which is defined as:
__u8 pkt_type:3,
fclone:2,
ipvs_property:1,
peeked:1,
nf_trace:1;
Fix it by searching for 3 most significant bits and shift them by 5 at run-time
Fixes:
bd4cf0ed331a ("net: filter: rework/optimize internal BPF interpreter's instruction set")
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Tested-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Konrad Zapalowicz [Thu, 5 Jun 2014 18:27:42 +0000 (20:27 +0200)]
net: phy: fix sparse warning in fixed.c
This commit fixes the following sparse warning:
drivers/net/phy/fixed.c:207
- warning: symbol 'fixed_phy_del' was not declared.
Should it be static?
by adding symbol definition to the phy_fixed.h API file. It is ok to do
because the function in question is an exported symbol.
Signed-off-by: Konrad Zapalowicz <bergo.torino@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 5 Jun 2014 22:37:00 +0000 (15:37 -0700)]
Merge branch 'systemport-next'
Florian Fainelli says:
====================
net: systemport: misc fixes
This patch series contains some misc fixes for the SYSTEMPORT driver.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Thu, 5 Jun 2014 17:22:18 +0000 (10:22 -0700)]
net: systemport: start with carrier off
The SYSTEMPORT driver uses libphy to determine the carrier state, so
make sure we start with a carrier off until libphy has completed the
link training process.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Thu, 5 Jun 2014 17:22:17 +0000 (10:22 -0700)]
net: systemport: fix comment about HW prepending 2bytes
The comment about how the hardware prepends 2bytes to align the IP
header on a 4-byte boundary was not correct, fix that.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Thu, 5 Jun 2014 17:22:16 +0000 (10:22 -0700)]
net: systemport: correctly check for RX_STATUS_OVFLOW flag
We were missing an and comparison with status to check whether
RX_STATUS_OVFLOW is asserted or not in the per-packet status word, fix
that.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Thu, 5 Jun 2014 17:22:15 +0000 (10:22 -0700)]
net: systemport: fix transmit locking scheme
Our transmit locking scheme did not account for the TX ring full
interrupt. If a TX ring full interrupt fires while we are attempting to
transmit, we will cause a deadlock to occur. Fix this by making sure
that we properly disable interrupts while acquiring the spinlock.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 5 Jun 2014 22:35:04 +0000 (15:35 -0700)]
Merge git://git./linux/kernel/git/pablo/nf-next
Pablo Neira Ayuso says:
====================
Netfilter/nf_tables fixes for net-next
This patchset contains fixes for recent updates available in your
net-next, they are:
1) Fix double memory allocation for accounting objects that results
in a leak, this slipped through with the new quota extension,
patch from Mathieu Poirier.
2) Fix broken ordering when adding set element transactions.
3) Make sure that objects are released in reverse order in the abort
path, to avoid possible use-after-free when accessing dependencies.
4) Allow to delete several objects (as long as dependencies are
fulfilled) by using one batch. This includes changes in the use
counter semantics of the nf_tables objects.
5) Fix illegal sleeping allocation from rcu callback.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 5 Jun 2014 22:26:58 +0000 (15:26 -0700)]
Merge branch 'amd-xgbe'
Tom Lendacky says:
====================
amd-xgbe: AMD 10Gb Ethernet driver
The following series implements support for the new AMD 10Gb Ethernet
driver (amd-xgbe). It includes the 10Gb Ethernet driver as well as
a 10Gb Ethernet PHY driver.
This patch series is based on net-next.
Changes in V3:
- Add OF dependency to the phylib driver configuration
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Lendacky, Thomas [Thu, 5 Jun 2014 14:15:24 +0000 (09:15 -0500)]
amd-xgbe: Maintainer information
This patch adds the maintainer information for the AMD 10GbE
platform driver.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Lendacky, Thomas [Thu, 5 Jun 2014 14:15:18 +0000 (09:15 -0500)]
amd-xgbe: Configuration and build support
This patch provides the Kconfig and Makefile changes needed
to configure and build the AMD 10GbE platform driver and the
AMD 10GbE phylib driver.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Lendacky, Thomas [Thu, 5 Jun 2014 14:15:12 +0000 (09:15 -0500)]
amd-xgbe: Initial AMD 10GbE phylib driver
This patch provides the initial phylib driver in support
of the AMD 10GbE device.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Lendacky, Thomas [Thu, 5 Jun 2014 14:15:06 +0000 (09:15 -0500)]
amd-xgbe: Initial AMD 10GbE platform driver
This patch provides the initial platform driver for the AMD
10GbE device.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Lendacky, Thomas [Thu, 5 Jun 2014 14:15:00 +0000 (09:15 -0500)]
amd-xgbe: AMD 10GbE device bindings documentation
This patch provides the documentation of the device bindings
for the AMD 10GbE platform driver.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Toshiaki Makita [Thu, 5 Jun 2014 11:53:32 +0000 (20:53 +0900)]
bridge: Fix incorrect judgment of promisc
br_manage_promisc() incorrectly expects br_auto_port() to return only 0
or 1, while it actually returns flags, i.e., a subset of BR_AUTO_MASK.
Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
Amos Kong [Thu, 5 Jun 2014 03:01:22 +0000 (11:01 +0800)]
hplance: fix ram size in comment
drivers/net/ethernet/amd/hplance.h:
#define HPLANCE_MEMOFF 0x8000 /* struct lance_init_block */
#define HPLANCE_NVRAMOFF 0xC008 /* etheraddress as one *nibble* per byte */
The offset of RAM start is 0x8000, the offset of RAM end is 0xC008,
so the RAM size is 16392 bytes.
Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Amos Kong [Thu, 5 Jun 2014 03:01:21 +0000 (11:01 +0800)]
mvme147: fix ram size in comment
The order of ram pages is 3, so the ram size is 2^3 * 4K = 32K.
Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 5 Jun 2014 22:12:16 +0000 (15:12 -0700)]
Merge branch 'dm9000-next'
Andrew Ruder says:
====================
miscellaneous dm9000 driver fixes
This is a collection of changes discovered while bringing a PXA270 based board
(Arcom ZEUS) with a Davicom DM9000A/B up to a more recent kernel (from 2.6.xx).
This addresses all of my earlier issues (August 2013) listed here:
http://marc.info/?l=linux-netdev&m=
137598605603324&w=2
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Ruder [Wed, 4 Jun 2014 22:28:49 +0000 (17:28 -0500)]
dm9000: avoid sleeping in dm9000_timeout callback
On the DM9000B, dm9000_msleep() is called during the dm9000_timeout()
routine. Since dm9000_timeout() holds the main spinlock through the
entire routine, mdelay() needs to be used rather than msleep().
Furthermore, the mutex_lock()/mutex_unlock() should be avoided so as to
not sleep with spinlocks held.
Signed-off-by: Andrew Ruder <andrew.ruder@elecsyscorp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Ruder [Wed, 4 Jun 2014 22:28:48 +0000 (17:28 -0500)]
dm9000: handle initial link status
On the DM9000A/DM9000B force the initial check of the link status. The
DM9000A/B has a link status changed event and this interrupt bit isn't
always set out of reset when a cable is plugged in. This results in the
driver not seeing the cable attached link status until the cable is
removed and plugged in again.
Signed-off-by: Andrew Ruder <andrew.ruder@elecsyscorp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Ruder [Wed, 4 Jun 2014 22:28:47 +0000 (17:28 -0500)]
dm9000: remove redundant ISR status clear
Since dm9000_interrupt() is already reading/clearing every set bit in
DM9000_ISR, this additional clear in dm9000_rx() (which is only called
by dm9000_interrupt()) is unnecessary and can be removed.
Signed-off-by: Andrew Ruder <andrew.ruder@elecsyscorp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Ruder [Wed, 4 Jun 2014 22:28:46 +0000 (17:28 -0500)]
dm9000: clean up edge-triggered irq compatibility
DM9000 uses level-triggered interrupts. Some systems (PXA270) only
support edge-triggered interrupts on GPIOs. Some changes are necessary
to ensure that interrupts are not triggered while the GPIO interrupt is
masked or we will miss the interrupt forever.
* Make some helper functions called dm9000_mask_interrupts() and
dm9000_unmask_interrupts() for readability.
* dm9000_init_dm9000(): ensure that this function always leaves interrupts
masked regardless of the state when it entered the function. This is
primarily to support the situation in dm9000_open where the logic used
to go:
dm9000_open()
dm9000_init_dm9000()
unmask interrupts
request_irq()
If an interrupt occurred between unmasking the interrupt and
requesting the irq, it would be missed forever as the edge event would
never be seen by the GPIO hardware in the PXA270. This allows us to
change the logic to:
dm9000_open()
dm9000_init_dm9000()
dm9000_mask_interrupts()
request_irq()
dm9000_unmask_interrupts()
* dm9000_timeout(), dm9000_drv_resume(): Add the missing
dm9000_unmask_interrupts() now required by the change above.
* dm9000_shutdown(): Use mask helper function
* dm9000_interrupt(): Use mask/unmask helper functions
Signed-off-by: Andrew Ruder <andrew.ruder@elecsyscorp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Ruder [Wed, 4 Jun 2014 22:28:45 +0000 (17:28 -0500)]
dm9000: clean up reset code
* Change a hard-coded 0x3 to NCR_RST | NCR_MAC_LBK in dm9000_reset
* Every single place where dm9000_init_dm9000 was ran, a dm9000_reset
was called immediately before-hand. Bring dm9000_reset into
dm9000_init_dm9000.
* The following commit updated the dm9000_probe reset routine to use NCR_RST
| NCR_MAC_LBK:
6741f40 DM9000B: driver initialization upgrade
and a later commit added a bug-fix to always reset the chip twice:
09ee9f8 dm9000: Implement full reset of DM9000 network device
Unfortunately, since the changes in
6741f40 were made by replacing the
dm9000_probe dm9000_reset with the adjusted iow(), the changes in
09ee9f8 were not incorporated into the dm9000_probe reset.
Furthermore, it bypassed the requisite reset-delay causing some boards
to get at least one "read wrong id ..." dev_err message during
dm9000_probe.
Signed-off-by: Andrew Ruder <andrew.ruder@elecsyscorp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Ruder [Wed, 4 Jun 2014 22:28:44 +0000 (17:28 -0500)]
dm9000: acquire irq flags from device tree
The DM9000 supports both active high interrupts and active low interrupts.
This is configured via the attached EEPROM. In the device-tree case, make sure
that the DM9000 driver passes the correct flags to request_irq.
Signed-off-by: Andrew Ruder <andrew.ruder@elecsyscorp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Zoltan Kiss [Wed, 4 Jun 2014 18:58:51 +0000 (19:58 +0100)]
xen-netback: Fix handling of skbs requiring too many slots
A recent commit (a02eb4 "xen-netback: worse-case estimate in xenvif_rx_action is
underestimating") capped the slot estimation to MAX_SKB_FRAGS, but that triggers
the next BUG_ON a few lines down, as the packet consumes more slots than
estimated.
This patch introduces full_coalesce on the skb callback buffer, which is used in
start_new_rx_buffer() to decide whether netback needs coalescing more
aggresively. By doing that, no packet should need more than
(XEN_NETIF_MAX_TX_SIZE + 1) / PAGE_SIZE data slots (excluding the optional GSO
slot, it doesn't carry data, therefore irrelevant in this case), as the provided
buffers are fully utilized.
Signed-off-by: Zoltan Kiss <zoltan.kiss@citrix.com>
Cc: Paul Durrant <paul.durrant@citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Paul Durrant <paul.durrant@gmail.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Rajesh Borundia [Wed, 4 Jun 2014 07:40:54 +0000 (03:40 -0400)]
qlcnic: Initialize mailbox cmd structure to zero
o Uninitialzed fields in mailbox command structure
caused commands to time out randomly due to garbage
values so initialize it to zero.
Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Simon Horman [Tue, 3 Jun 2014 23:53:17 +0000 (08:53 +0900)]
MPLS: Use mpls_features to activate software MPLS GSO segmentation
If an MPLS packet requires segmentation then use mpls_features
to determine if the software implementation should be used.
As no driver advertises MPLS GSO segmentation this will always be
the case.
I had not noticed that this was necessary before as software MPLS GSO
segmentation was already being used in my test environment. I believe that
the reason for that is the skbs in question always had fragments and the
driver I used does not advertise NETIF_F_FRAGLIST (which seems to be the
case for most drivers). Thus software segmentation was activated by
skb_gso_ok().
This introduces the overhead of an extra call to skb_network_protocol()
in the case where where CONFIG_NET_MPLS_GSO is set and
skb->ip_summed == CHECKSUM_NONE.
Thanks to Jesse Gross for prompting me to investigate this.
Signed-off-by: Simon Horman <horms@verge.net.au>
Acked-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fabio Estevam [Tue, 3 Jun 2014 22:55:38 +0000 (19:55 -0300)]
gianfar: Call netif_carrier_off() prior to registration
Quoting David Miller:
"At the moment you call register_netdev() the device is visible, notifications
are sent to userspace, and userland tools can try to bring the interface up
and see the incorrect link state, before you do the netif_carrier_off().
Said another way, between the register_netdev() and netif_carrier_off() call,
userspace can see the device in an inconsistent state."
So call netif_carrier_off() prior to register_netdev().
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 5 Jun 2014 20:04:31 +0000 (13:04 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/jkirsher/net-next
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates 2014-06-05
This series contains updates to i40e and i40evf.
Jesse fixes an issue reported by Dave Jones where a couple of FD checks
ended up using bitwise OR where it should have been bitwise AND.
Neerav removes unused defines and macros for receive LRO. Fix the driver
from allowing the user to set a larger MTU size that the hardware was
being configured to support. Refactors send version which moves code in
two places into a small helper function.
Kamil modifies register diagnostics since register ranges can vary among
the different NVMs to avoid false test results. So now we try to identify
the full range and use it for a register test and if we fail to define the
proper register range, we will only test the first register from that
group. Then removes the check for large buffer since this was added in the
case this structure changed in the future, since the AQ definition is now
mature enough that this check is no longer necessary.
Mitch fixes i40evf driver to allocate descriptors in groups of 32 since the
hardware requires it. Also fixes a crash when the ring size changed because
it would change the count before deallocating resources, causing the driver
to either free nonexistent buffers or leak leftover buffers. Fixed the
driver to notify the VF for all types of resets so the VF can attempt a
graceful reinit.
Shannon refactors stats collection to create a unifying stats update routine
to call the various stat collection routines. Removes rx_errors and
rx_missed stats since they were removed from the chip design. Added
missing VSI statistics that the hardware offers but are not apart of the
standard netdev stats.
v2: dropped patch "i40e: Allow disabling of DCB via debugfs" from Neerav
based on feedback from David Miller.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Shannon Nelson [Wed, 23 Apr 2014 04:50:20 +0000 (04:50 +0000)]
i40e: add missing VSI statistics
Add a couple more statistics that the hardware offers but aren't part
of the standard netdev stats.
Change-ID: I201db2898f2c284aee3d9631470bc5edd349e9a5
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Shannon Nelson [Wed, 23 Apr 2014 04:50:19 +0000 (04:50 +0000)]
i40e/i40evf: remove rx_errors and rx_missed
The rx_errors (GLV_REPC) and rx_missed (GLV_RMPC) were removed
from the chip design.
Change-ID: Ifdeb69c90feac64ec95c36d3d32c75e3a06de3b7
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Shannon Nelson [Wed, 23 Apr 2014 04:50:18 +0000 (04:50 +0000)]
i40e: refactor stats collection
Pull the PF stat collection out of the VSI collection routine, and
add a unifying stats update routine to call the various stat collection
routines.
Change-ID: I224192455bb3a6e5dc0a426935e67dffc123e306
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jesse Brandeburg [Wed, 23 Apr 2014 04:50:15 +0000 (04:50 +0000)]
i40e: refactor send version
This change moves some common code in two places into a
small helper function, and corrects a bug in one of the
two places in the process.
Change-ID: If3bba7152b240f13a7881eb0e8a781655fa66ce7
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Kamil Krawczyk [Wed, 23 Apr 2014 04:50:14 +0000 (04:50 +0000)]
i40e/i40evf: VEB structure added, GTIME macro update
Structure for VEB context added. Update macro for
transition from ms to GTIME (us) time units.
Change-ID: Ib3a19587b4cf355348655df8f60c6f37bb1497a3
Signed-off-by: Kamil Krawczyk <kamil.krawczyk@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Mitch Williams [Wed, 23 Apr 2014 04:50:11 +0000 (04:50 +0000)]
i40e: notify VF of all types of resets
Currently, the PF driver only notifies the VFs for PF reset events.
Instead, notify the VFs for all types of resets, so they can attempt a
graceful reinit.
Change-ID: I03eb7afde25727198ef620f8b4e78bb667a11370
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Mitch Williams [Thu, 24 Apr 2014 06:41:37 +0000 (06:41 +0000)]
i40evf: fix crash when changing ring sizes
i40evf_set_ringparam was broken in several ways. First, it only changed
the size of the first ring, and second, changing the ring size would
often result in a panic because it would change the count before
deallocating resources, causing the driver to either free nonexistent
buffers, or leak leftover buffers.
Fix this by storing the descriptor count in the adapter structure, and
updating the count for each ring each time we allocate them. This
ensures that we always free the right size ring, and always end up with
the requested count when the device is (re)opened.
Change-ID: I298396cd3d452ba8509d9f2d33a93f25868a9a55
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Mitch Williams [Wed, 23 Apr 2014 04:50:08 +0000 (04:50 +0000)]
i40evf: set descriptor multiple to 32
Hardware requires descriptors to be allocated in groups of 32.
Change-ID: I752ccc96769d1bd8d3018c004b8aeff464045bf2
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jesse Brandeburg [Wed, 23 Apr 2014 04:50:05 +0000 (04:50 +0000)]
i40e: clamp jumbo frame size
The driver was allowing the user to set larger size MTU
than the hardware was being configured to support.
The driver was already using VLAN_HLEN when setting the
hardware max receivable frame size, so just add it to the
netdev MTU set entry point as well.
Change-ID: Ie20e2a35d04f8c411253e255bea79ca69aaeaea3
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jesse Brandeburg [Wed, 23 Apr 2014 04:50:04 +0000 (04:50 +0000)]
i40e/i40evf: remove unused RX_LRO define
Remove unused defines and macros for RX_LRO.
Change-ID: I8ca6715edfa62b56837417a1c4ff68c2345dab6e
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Kamil Krawczyk [Wed, 23 Apr 2014 04:49:58 +0000 (04:49 +0000)]
i40e: remove check for large buffer
We introduced this check in case this structure changed in the future,
the AQ definition is now mature enough that this check is no longer necessary.
Change-ID: Ic66321d0a08557dc9d8cb84029185352cb534330
Signed-off-by: Kamil Krawczyk <kamil.krawczyk@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Kamil Krawczyk [Wed, 23 Apr 2014 04:49:56 +0000 (04:49 +0000)]
i40e: Rework register diagnostic
Register range, being subject to register diagnostic, can vary among
different NVMs. We will try to identify the full range and use it for
a register test. This is needed to avoid false test results. If we fail
to define the proper register range we will test only the first register
from that group.
Change-ID: Ieee7173c719733b61d3733177a94dc557eb7b3fd
Signed-off-by: Kamil Krawczyk <kamil.krawczyk@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jesse Brandeburg [Wed, 16 Apr 2014 01:21:40 +0000 (01:21 +0000)]
i40e: don't use OR to check a value
A couple of FD checks ended up using bitwise OR to check
a value, which ends up always being evaluated to true.
This should fix the issue. Thanks to DaveJ for noticing
and reporting the issue!
CC: Dave Jones <davej@redhat.com>
Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
WANG Cong [Mon, 2 Jun 2014 23:12:02 +0000 (16:12 -0700)]
ipv4: use skb frags api in udp4_hwcsum()
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
WANG Cong [Mon, 2 Jun 2014 22:55:22 +0000 (15:55 -0700)]
net: use the new API kvfree()
It is available since v3.15-rc5.
Cc: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Manuel Schölling [Sat, 31 May 2014 21:37:40 +0000 (23:37 +0200)]
dns_resolver: Do not accept domain names longer than 255 chars
According to RFC1035 "[...] the total length of a domain name (i.e.,
label octets and label length octets) is restricted to 255 octets or
less."
Signed-off-by: Manuel Schölling <manuel.schoelling@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 5 Jun 2014 06:13:49 +0000 (23:13 -0700)]
Merge branch 'isdn-capi'
Tilman Schmidt says:
====================
ISDN patches for net-next (v2)
Here's v2 of the series of patches for the ISDN CAPI subsystem
prepared by Paul Bolle and reviewed by yours truly. It reflects
GregKH's review, resulting in a substantial simplification.
Please merge via net-next.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Paul Bolle [Sun, 1 Jun 2014 21:47:24 +0000 (23:47 +0200)]
isdn/capi: fix (middleware) device nodes
Since v2.4 the capi driver used the following device nodes if
"middleware" support was enabled:
/dev/capi20
/dev/capi/0
/dev/capi/1
[...]
/dev/capi20 is a character device node. /dev/capi/0 (and up) are tty
device nodes (with a different major).
This device node (naming) scheme is not documented anywhere, as far as I
know. It was originally provided by the capifs pseudo filesystem (before
udev became available). It is required for example by the pppd
capiplugin. It was supported until a few years ago. But a number of
developments broke it:
- v2.6.6 (May 2004) renamed /dev/capi20 to /dev/capi and removed the
"/" from the name of capi's tty driver. The explanation of the patch
that did this included two examples of udev rules "to restore the old
namespace";
- either udev 154 (May 2010) or udev 179 (January 2012) stopped
allowing to rename device nodes, and thus the ability to have
/dev/capi20 appear instead of /dev/capi and /dev/capi/0 (and up)
instead of /dev/capi0 (and up);
- v3.0 (July 2011) also removed capifs. That disabled another method to
create the /dev/capi/0 (and up) device nodes.
So now users need to manually tweak their setup (eg, create /dev/capi/
and fill that with symlinks) to get things working. This is all rather
hacky and only discoverable by searching the web. Fix all this by
renaming /dev/capi back to /dev/capi20, and by setting the name of the
"capi_nc" tty driver to "capi!" so the tty device nodes appear as
/dev/capi/0 (and up).
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Paul Bolle [Sun, 1 Jun 2014 21:47:24 +0000 (23:47 +0200)]
isdn/capi: Make verbose reporting depend on capidrv
The Kconfig symbol ISDN_DRV_AVMB1_VERBOSE_REASON is only used for
capi_info2str(). That function is only used in capidrv.c. So setting it
without setting ISDN_CAPI_CAPIDRV is pointless. Make it depend on
ISDN_CAPI_CAPIDRV, rename it to ISDN_CAPI_CAPIDRV_VERBOSE and put its
entry after ISDN_CAPI_CAPIDRV's entry.
Since this symbol seems to be primarily used for debugging, keep it off
by default. By now the last users of capidrv hopefully know all they
need to know about the reasons for disconnecting.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
Paul Bolle [Sun, 1 Jun 2014 21:47:24 +0000 (23:47 +0200)]
isdn/capi: move capi_info2str to capidrv.c
capi_info2str() is apparently meant to be of general utility. It is
actually only used in capidrv.c. So move it from capiutil.c to
capidrv.c and (obviously) stop exporting it.
And, since we're touching this, merge the two versions of this
function.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 5 Jun 2014 05:52:31 +0000 (22:52 -0700)]
Merge branch 'inet_csums'
Tom Herbert says:
====================
net: Support checksum in UDP
This patch series adds support for using checksums in UDP tunnels. With
this it is possible that two or more checksums may be set within the
same packet and we would like to do that efficiently.
This series also creates some new helper functions to be used by various
tunnel protocol implementations.
v2: Fixed indentation in tcp_v6_send_check arguments.
v3: Move udp_set_csum and udp6_set_csum to be not inlined
Also have this functions call with a nocheck boolean argument
instead of passing a sock structure.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Herbert [Thu, 5 Jun 2014 00:20:29 +0000 (17:20 -0700)]
vxlan: Add support for UDP checksums (v4 sending, v6 zero csums)
Added VXLAN link configuration for sending UDP checksums, and allowing
TX and RX of UDP6 checksums.
Also, call common iptunnel_handle_offloads and added GSO support for
checksums.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Herbert [Thu, 5 Jun 2014 00:20:23 +0000 (17:20 -0700)]
gre: Call gso_make_checksum
Call gso_make_checksum. This should have the benefit of using a
checksum that may have been previously computed for the packet.
This also adds NETIF_F_GSO_GRE_CSUM to differentiate devices that
offload GRE GSO with and without the GRE checksum offloaed.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Herbert [Thu, 5 Jun 2014 00:20:16 +0000 (17:20 -0700)]
net: Add GSO support for UDP tunnels with checksum
Added a new netif feature for GSO_UDP_TUNNEL_CSUM. This indicates
that a device is capable of computing the UDP checksum in the
encapsulating header of a UDP tunnel.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Herbert [Thu, 5 Jun 2014 00:20:09 +0000 (17:20 -0700)]
tcp: Call gso_make_checksum
Call common gso_make_checksum when calculating checksum for a
TCP GSO segment.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Herbert [Thu, 5 Jun 2014 00:20:02 +0000 (17:20 -0700)]
net: Support for multiple checksums with gso
When creating a GSO packet segment we may need to set more than
one checksum in the packet (for instance a TCP checksum and
UDP checksum for VXLAN encapsulation). To be efficient, we want
to do checksum calculation for any part of the packet at most once.
This patch adds csum_start offset to skb_gso_cb. This tracks the
starting offset for skb->csum which is initially set in skb_segment.
When a protocol needs to compute a transport checksum it calls
gso_make_checksum which computes the checksum value from the start
of transport header to csum_start and then adds in skb->csum to get
the full checksum. skb->csum and csum_start are then updated to reflect
the checksum of the resultant packet starting from the transport header.
This patch also adds a flag to skbuff, encap_hdr_csum, which is set
in *gso_segment fucntions to indicate that a tunnel protocol needs
checksum calculation
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Herbert [Thu, 5 Jun 2014 00:19:56 +0000 (17:19 -0700)]
l2tp: call udp{6}_set_csum
Call common functions to set checksum for UDP tunnel.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Herbert [Thu, 5 Jun 2014 00:19:48 +0000 (17:19 -0700)]
udp: Generic functions to set checksum
Added udp_set_csum and udp6_set_csum functions to set UDP checksums
in packets. These are for simple UDP packets such as those that might
be created in UDP tunnels.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sven Wegener [Thu, 29 May 2014 20:27:05 +0000 (20:27 +0000)]
ipv6: Fix regression caused by
efe4208 in udp_v6_mcast_next()
Commit
efe4208 ("ipv6: make lookups simpler and faster") introduced a
regression in udp_v6_mcast_next(), resulting in multicast packets not
reaching the destination sockets under certain conditions.
The packet's IPv6 addresses are wrongly compared to the IPv6 addresses
from the function's socket argument, which indicates the starting point
for looping, instead of the loop variable. If the addresses from the
first socket do not match the packet's addresses, no socket in the list
will match.
Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 4 Jun 2014 22:14:17 +0000 (15:14 -0700)]
Merge branch 'bonding-macvlan'
Vlad Yasevich says:
====================
Fix support for macvlan devices on top bonding
Currently, macvlan devices do not work well over bond interfaces.
Everything works well, untill a failover is triggered in the bond
device and then macvlan becomes unreachble untill arp entries
are flushed. This series adds needed functionality to
handle correct notifications and update switches with mac addresses
assigned to macvlans.
The first patch simply addes IFF_UNICAST_FLT flag to bonds since they
already correctly manage the unicast filter list of the slaves, so
we might as well prevent the bond from needlessly going into promiscuous
mode.
The second patch adds notifier handler to macvlan to trigger correct
ARP notifications.
The third patch adds handling for TLB and RLB modes that use special
ETH_P_LOOPBACK type packets to teach switch about mac addresses.
It also allow ARPs for the macvlan mac addresses to be handled by
RLB mode.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Vlad Yasevich [Wed, 4 Jun 2014 20:23:38 +0000 (16:23 -0400)]
bonding: Support macvlans on top of tlb/rlb mode bonds
To make TLB mode work, the patch allows learning packets
to be sent using mac addresses assigned to macvlan devices,
also taking into an account vlans that may be between the
bond and macvlan device.
To make RLB work, all we have to do is accept ARP packets
for addresses added to the bond dev->uc list. Since RLB
mode will take care to update the peers directly with
correct mac addresses, learning packets for these addresses
do not have be send to switch.
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vlad Yasevich [Wed, 4 Jun 2014 20:23:37 +0000 (16:23 -0400)]
macvlan: Support bonding events
Bonding and team drivers generate specific events during failover
that trigger switch updates. When a macvlan device is configured
on top of bonding, we want switches to learn about the macvlan
devices as well. This patch adds a handler to macvlan driver to
propagate these events to all macvlan devices. We let the generic
inetdev event handler do the work.
This allows macvlan to operated correctly over active-backup
mode bond.
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vlad Yasevich [Wed, 4 Jun 2014 20:23:36 +0000 (16:23 -0400)]
bonding: Turn on IFF_UNICAST_FLT on bond devices
Bonding devices manage the unicast filters of the underlying
interfaces, but do not turn on IFF_UNICAST_FLT flag. Thus
anytime a unicast address is added to the bond, the bond is
places in promiscuous mode.
Turn on IFF_UNICAST_FLT on the bond device so that the bond does
not go into promiscuous mode needlesly. If an underlying device
does not support unicast filtering, that device will automaticall
enter promiscuous mode already.
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sasha Levin [Wed, 4 Jun 2014 22:02:32 +0000 (18:02 -0400)]
net: Revert "fib_trie: use seq_file_net rather than seq->private"
This reverts commit
30f38d2fdd79f13fc929489f7e6e517b4a4bfe63.
fib_triestat is surrounded by a big lie: while it claims that it's a
seq_file (fib_triestat_seq_open, fib_triestat_seq_show), it isn't:
static const struct file_operations fib_triestat_fops = {
.owner = THIS_MODULE,
.open = fib_triestat_seq_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release_net,
};
Yes, fib_triestat is just a regular file.
A small detail (assuming CONFIG_NET_NS=y) is that while for seq_files
you could do seq_file_net() to get the net ptr, doing so for a regular
file would be wrong and would dereference an invalid pointer.
The fib_triestat lie claimed a victim, and trying to show the file would
be bad for the kernel. This patch just reverts the issue and fixes
fib_triestat, which still needs a rewrite to either be a seq_file or
stop claiming it is.
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Antonio Ospite [Wed, 4 Jun 2014 12:03:47 +0000 (14:03 +0200)]
trivial: drivers/net/ethernet/nvidia/forcedeth.c: fix typo s/SUBSTRACT1/SUBTRACT1/
Signed-off-by: Antonio Ospite <ao2@ao2.it>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Alexander Gordeev <agordeev@redhat.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Xiubo Li [Wed, 4 Jun 2014 08:49:16 +0000 (16:49 +0800)]
gianfar: Fix the section mismatch warnings.
Building with CONFIG_DEBUG_SECTION_MISMATCH enabled, the following
WARNING is occured:
LD drivers/net/built-in.o
WARNING: drivers/net/built-in.o(.text+0xcd4c): Section mismatch in
reference from the function gfar_probe() to the function
.init.text:gfar_init_addr_hash_table()
The function gfar_probe() references
the function __init gfar_init_addr_hash_table().
This is often because gfar_probe lacks a __init
annotation or the annotation of gfar_init_addr_hash_table is wrong.
Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 4 Jun 2014 21:48:30 +0000 (14:48 -0700)]
Merge branch 'xen-netback-netfront-multiqueue'
Wei Liu says:
====================
This is rebased version of Andrew's V8 patch series. The original cover letter:
--------------------
xen-net{back, front}: Multiple transmit and receive queues
This patch series implements multiple transmit and receive queues (i.e.
multiple shared rings) for the xen virtual network interfaces.
The series is split up as follows:
- Patch 1 brings the 'grant_copy_op' array back into struct xenvif, in
preparation for multi-queue support. See the patch itself for more details.
- Patches 2 and 4 factor out the queue-specific data for netback and
netfront respectively, and modify the rest of the code to use these
as appropriate.
- Patches 3 and 5 introduce new XenStore keys to negotiate and use
multiple shared rings and event channels, and code to connect these
as appropriate.
- Patch 6 documents the XenStore keys required for the new feature
in include/xen/interface/io/netif.h
All other transmit and receive processing remains unchanged, i.e. there
is a kthread per queue and a NAPI context per queue.
The performance of these patches has been analysed in detail, with
results available at:
http://wiki.xenproject.org/wiki/Xen-netback_and_xen-netfront_multi-queue_performance_testing
To summarise:
* Using multiple queues allows a VM to transmit at line rate on a 10
Gbit/s NIC, compared with a maximum aggregate throughput of 6 Gbit/s
with a single queue.
* For intra-host VM--VM traffic, eight queues provide 171% of the
throughput of a single queue; almost 12 Gbit/s instead of 6 Gbit/s.
* There is a corresponding increase in total CPU usage, i.e. this is a
scaling out over available resources, not an efficiency improvement.
* Results depend on the availability of sufficient CPUs, as well as the
distribution of interrupts and the distribution of TCP streams across
the queues.
Queue selection is currently achieved via an L4 hash on the packet (i.e.
TCP src/dst port, IP src/dst address) and is not negotiated between the
frontend and backend, since only one option exists. Future patches to
support other frontends (particularly Windows) will need to add some
capability to negotiate not only the hash algorithm selection, but also
allow the frontend to specify some parameters to this.
Note that queue selection is a decision by the transmitting system about
which queue to use for a particular packet. In general, the algorithm
may differ between the frontend and the backend with no adverse effects.
Queue-specific XenStore entries for ring references and event channels
are stored hierarchically, i.e. under .../queue-N/... where N varies
from 0 to one less than the requested number of queues (inclusive). If
only one queue is requested, it falls back to the flat structure where
the ring references and event channels are written at the same level as
other vif information.
V8:
- Squash the queue error handling code into patch 3.
- Update the documentation (patch 6) according to comments on the
equivalent patch to Xen.
V7:
- Rebase on latest net-next, which includes the netback grant mapping
patch series from Zoltan Kiss
- Reduce QUEUE_NAME_SIZE by 1 to avoid double-counting the trailing '\0'
- Simplify the queue hashing by using (hash % num_queues) instead of
multiply & shift.
- Add ratelimited warning for invalid queue selection.
- Fix error handling to correctly tear down already setup queues.
- Use dev->real_num_tx_queues instead of separately maintaining a
count of the number of queues.
V6:
- Use 'max_queues' as the module param. name for both netback and netfront.
V5:
- Fix bug in xenvif_free() that could lead to an attempt to transmit an
skb after the queue structures had been freed.
- Improve the XenStore protocol documentation in netif.h.
- Fix IRQ_NAME_SIZE double-accounting for null terminator.
- Move rx_gso_checksum_fixup stat into struct xenvif_stats (per-queue).
- Don't initialise a local variable that is set in both branches (xspath).
V4:
- Add MODULE_PARM_DESC() for the multi-queue parameters for netback
and netfront modules.
- Move del_timer_sync() in netfront to after unregister_netdev, which
restores the order in which these functions were called before applying
these patches.
V3:
- Further indentation and style fixups.
V2:
- Rebase onto net-next.
- Change queue->number to queue->id.
- Add atomic operations around the small number of stats variables that
are not queue-specific or per-cpu.
- Fixup formatting and style issues.
- XenStore protocol changes documented in netif.h.
- Default max. number of queues to num_online_cpus().
- Check requested number of queues does not exceed maximum.
--------------------
I rebased this on top of net-next. No functional change is introduced. The
patch that needed some extra care was "xen-netback: Factor queue-specific data
into queue struct" because it clashed with a fix introduced in net. A simple
test of creating guest, iperf, then shutting down guest worked as expected.
The last patch fixes a minor problem that queue name is not initialised in
xen-netfront, resulting in names like "-tx" "-rx" in /proc/interrupt.
Changes since v9 (no functional change introduced):
* include commit summary in the commit message of first patch
* fold David Vrabel's Reviewed-by into last patch
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Wei Liu [Wed, 4 Jun 2014 09:30:47 +0000 (10:30 +0100)]
xen-netfront: initialise queue name in xennet_init_queue
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew J. Bennieston [Wed, 4 Jun 2014 09:30:46 +0000 (10:30 +0100)]
xen-net{back, front}: Document multi-queue feature in netif.h
Document the multi-queue feature in terms of XenStore keys to be written
by the backend and by the frontend.
Signed-off-by: Andrew J. Bennieston <andrew.bennieston@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew J. Bennieston [Wed, 4 Jun 2014 09:30:45 +0000 (10:30 +0100)]
xen-netfront: Add support for multiple queues
Build on the refactoring of the previous patch to implement multiple
queues between xen-netfront and xen-netback.
Check XenStore for multi-queue support, and set up the rings and event
channels accordingly.
Write ring references and event channels to XenStore in a queue
hierarchy if appropriate, or flat when using only one queue.
Update the xennet_select_queue() function to choose the queue on which
to transmit a packet based on the skb hash result.
Signed-off-by: Andrew J. Bennieston <andrew.bennieston@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew J. Bennieston [Wed, 4 Jun 2014 09:30:44 +0000 (10:30 +0100)]
xen-netfront: Factor queue-specific data into queue struct.
In preparation for multi-queue support in xen-netfront, move the
queue-specific data from struct netfront_info to struct netfront_queue,
and update the rest of the code to use this.
Also adds loops over queues where appropriate, even though only one is
configured at this point, and uses alloc_etherdev_mq() and the
corresponding multi-queue netif wake/start/stop functions in preparation
for multiple active queues.
Finally, implements a trivial queue selection function suitable for
ndo_select_queue, which simply returns 0, selecting the first (and
only) queue.
Signed-off-by: Andrew J. Bennieston <andrew.bennieston@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew J. Bennieston [Wed, 4 Jun 2014 09:30:43 +0000 (10:30 +0100)]
xen-netback: Add support for multiple queues
Builds on the refactoring of the previous patch to implement multiple
queues between xen-netfront and xen-netback.
Writes the maximum supported number of queues into XenStore, and reads
the values written by the frontend to determine how many queues to use.
Ring references and event channels are read from XenStore on a per-queue
basis and rings are connected accordingly.
Also adds code to handle the cleanup of any already initialised queues
if the initialisation of a subsequent queue fails.
Signed-off-by: Andrew J. Bennieston <andrew.bennieston@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Wei Liu [Wed, 4 Jun 2014 09:30:42 +0000 (10:30 +0100)]
xen-netback: Factor queue-specific data into queue struct
In preparation for multi-queue support in xen-netback, move the
queue-specific data from struct xenvif into struct xenvif_queue, and
update the rest of the code to use this.
Also adds loops over queues where appropriate, even though only one is
configured at this point, and uses alloc_netdev_mq() and the
corresponding multi-queue netif wake/start/stop functions in preparation
for multiple active queues.
Finally, implements a trivial queue selection function suitable for
ndo_select_queue, which simply returns 0 for a single queue and uses
skb_get_hash() to compute the queue index otherwise.
Signed-off-by: Andrew J. Bennieston <andrew.bennieston@citrix.com>
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew J. Bennieston [Wed, 4 Jun 2014 09:30:41 +0000 (10:30 +0100)]
xen-netback: Move grant_copy_op array back into struct xenvif.
This array was allocated separately in commit
ac3d5ac2 ("xen-netback:
fix guest-receive-side array sizes") due to it being very large, and a
struct xenvif is allocated as the netdev_priv part of a struct
net_device, i.e. via kmalloc() but falling back to vmalloc() if the
initial alloc. fails.
In preparation for the multi-queue patches, where this array becomes
part of struct xenvif_queue and is always allocated through vzalloc(),
move this back into the struct xenvif.
Signed-off-by: Andrew J. Bennieston <andrew.bennieston@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 4 Jun 2014 21:40:17 +0000 (14:40 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/jkirsher/net-next
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates
This series contains updates to e1000, igb and ixgbe.
Emil provides his version 2 fix for the detection of SFP+ capable interfaces.
In cases where the driver is loaded while there are no SFP+ modules in cage,
the interface was not being detected as SFP capable. Resolve the issue by
identifying interfaces with no PHY type set as SFP capable which allows the
driver to detect the SFP module when the interface is brought up. In this
version 2 of the patch, the 82599 specific check was removed since we only
have 82598 devices that are SFP capable.
Jacob removes the including of the export header in the ixgbe PTP core, since
it is not needed. Renames igb_ptp_enable() to igb_ptp_feature_enable() to
better reflect the actual functions purpose.
Todd fixes the ethtool loopback test for i354 backplane devices since we
do not know what PHY is to be used for the devices, use MAC loopback for
ethtool tests. Todd also sets the packet buffer size register defaults for
i210 devices.
Yongjian Xu removes the check for skb->len being negative or zero since there
is never a case where it would be zero or negative for e1000.
Manuel Schölling updates e1000 to use the time_after() helper function.
v2: Fix indentation on wrapped line in patch 3 of the series based on
feedback from David Miller
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Manuel Schölling [Fri, 23 May 2014 18:04:17 +0000 (18:04 +0000)]
e1000: Use time_after() for time comparison
To be future-proof and for better readability the time comparisons are modified
to use time_after() instead of plain, error-prone math.
Signed-off-by: Manuel Schölling <manuel.schoelling@gmx.de>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Yongjian Xu [Tue, 20 May 2014 08:22:50 +0000 (08:22 +0000)]
e1000: remove the check: skb->len<=0
There is no case skb->len would be 0 or 'negative'.
Remove the check.
Signed-off-by: Yongjian Xu <xuyongjiande@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Todd Fujinaka [Thu, 29 May 2014 05:47:26 +0000 (05:47 +0000)]
igb: add defaults for i210 TX/RX PBSIZE
Set the defaults on probe for the packet buffer size registers for the
i210.
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>
Todd Fujinaka [Thu, 29 May 2014 05:45:15 +0000 (05:45 +0000)]
igb: use mac loopback for i354 backplane
We can't know what PHY is to be used for i354 backplane, so use MAC
loopback for ethtool tests.
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>
Jacob Keller [Fri, 16 May 2014 07:21:13 +0000 (07:21 +0000)]
igb: rename igb_ptp_enable to igb_ptp_feature_enable
The name igb_ptp_enable is not synonymous with the purpose of this
function, so rename it to better explain its purpose.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Fri, 23 May 2014 08:18:13 +0000 (08:18 +0000)]
ixgbe: remove linux/export.h header from ixgbe_ptp.c
We don't need this header file, so we shouldn't be including it.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Emil Tantilov [Thu, 15 May 2014 07:16:53 +0000 (07:16 +0000)]
ixgbe: fix detection of SFP+ capable interfaces
In cases where the driver is loaded while there are no SFP+ modules in
the cage the interface was not being detected as SFP capable. To account
for this the driver called identify_sfp in ixgbe_get_settings to make
sure the data is correct. However when there is no SFP+ module in the cage
the driver waits for the I2C reads to time out which can take more than a
second and will cause issues with tools (like net-snmp) that may poll
for that information.
This patch resolves the issue by identifying interfaces with no PHY
type set as SFP capable which allows the driver to detect the SFP module
when the interface is brought up. As result of this we can also remove the
identify_sfp call from ixgbe_get_settings.
v2: remove the 82599 specific check since we have 82598 devices that are SFP
capable.
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
David S. Miller [Wed, 4 Jun 2014 06:32:12 +0000 (23:32 -0700)]
Merge git://git./linux/kernel/git/davem/net
Conflicts:
include/net/inetpeer.h
net/ipv6/output_core.c
Changes in net were fixing bugs in code removed in net-next.
Signed-off-by: David S. Miller <davem@davemloft.net>
Sergei Shtylyov [Tue, 3 Jun 2014 19:42:26 +0000 (23:42 +0400)]
sh_eth: fix SH7619/771x support
Commit
4a55530f38e4 (net: sh_eth: modify the definitions of register) managed
to leave out the E-DMAC register entries in sh_eth_offset_fast_sh3_sh2[], thus
totally breaking SH7619/771x support. Add the missing entries using the data
from before that commit.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Dooks [Tue, 3 Jun 2014 11:21:13 +0000 (12:21 +0100)]
sh_eth: use RNC mode for packet reception
The current behaviour of the sh_eth driver is not to use the RNC bit
for the receive ring. This means that every packet recieved is not only
generating an IRQ but it also stops the receive ring DMA as well until
the driver re-enables it after unloading the packet.
This means that a number of the following errors are generated due to
the receive packet FIFO overflowing due to nowhere to put packets:
net eth0: Receive FIFO Overflow
Since feedback from Yoshihiro Shimoda shows that every supported LSI
for this driver should have the bit enabled it seems the best way is
to remove the RMCR default value from the per-system data and just
write it when initialising the RMCR value. This is discussed in
the message (http://www.spinics.net/lists/netdev/msg284912.html).
I have tested the RMCR_RNC configuration with NFS root filesystem and
the driver has not failed yet. There are further test reports from
Sergei Shtylov and others for both the R8A7790 and R8A7791.
There is also feedback fron Cao Minh Hiep[1] which reports the
same issue in (http://comments.gmane.org/gmane.linux.network/316285)
showing this fixes issues with losing UDP datagrams under iperf.
Tested-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>