We're now using isa_virt_to_bus(), and there really
isn't a generic and consistent test for whether a
platform provides this interface or not.
This driver is also for an x86-only device.
Signed-off-by: David S. Miller <davem@davemloft.net>
PTP Hardware Clock devices appear as class devices in sysfs. This patch
changes the registration API to use the parent device, clarifying the
clock's relationship to the underlying device.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Acked-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jeff Kirsher says:
====================
This series contains updates to igb only.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
One-shot mode uses the TCS bit of the status register to discern
whether a transmission was successful or not. On a failed
transmission, the frame is not echoed back.
Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This change is meant to improve performance on systems that do not require
the DMA unmap calls. On those systems we do not need to make use of the
unmap address for Tx or the unmap length so we can drop both thereby
reducing the size of the Tx buffer info structure.
In addition I have changed the logic to check for unmap length instead of
unmap address when checking to see if a buffer needs to be unmapped from
DMA use. The reasons for this change is that on some platforms it is
possible to receive a valid DMA address of 0 from an IOMMU.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Instead of storing the RSS key as a character array we can simplify the
configuration by making it a u32 array. This allows us to just write one
value per register without any unnecessary operations to construct the
value.
This change will produce the same exact key, the only difference is that I
translated the u8 array to a u32 array which will be correctly ordered on
writes to hardware by the cpu_to_le32 operations that are built into the
writel calls.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch cleans up our RSS indirection table configuration so that we
generate the same table regardless of CPU endianness. In addition it
changes the table setup so that instead of doing a modulo based setup it is
instead a divisor based setup. The advantage to this is that we should be
able to take the Rx hash and compute the Rx queue with very little CPU
overhead if needed.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This change makes it so that Tx cleanup is done in a do/while loop instead
of a for loop. The main motivation behind this is the fact that we should
never be invoked with a budget less than 1 so we can skip checking the
budget before processing the first descriptor.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This change removes the code that was doing the NUMA allocations for the
q_vectors, rings, and ring resources. The problem is the logic used assumed
that the NUMA nodes were always interleved and that is not always the case.
At some point I hope to add this functionality back in a more controlled
manner in the future.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Due to a hardware issue, on i210 and i211 parts, the TNCRS statistic
provides an invalid value. This patch changes the update stats function
to increment the stat only for non-i210/i211 parts.
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Adapt the pre-existing and assigned VFs code to the ixgbe way introduced
in commit 9297127b9c.
Instead of searching the enabled VFs we use pci_num_vf to determine enabled VFs.
By comparing to which PF an assigned VF is owned it's possible to decide
whether to leave it enabled or not.
Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
Acked-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Robert Garrett <robertx.e.garrett@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
In case of error, the function clk_get() returns ERR_PTR()
and never returns NULL pointer. The NULL test in the error
handling should be replaced with IS_ERR().
dpatch engine is used to auto generated this patch.
(https://github.com/weiyj/dpatch)
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Rename generic-sounding function dump_mem() to pcan_dump_mem()
so that it does not conflict with the dump_mem() function in
arch/sh/include/asm/kdebug.h.
drivers/net/can/usb/peak_usb/pcan_usb_core.c: error: conflicting types for 'dump_mem': => 56:6
drivers/net/can/usb/peak_usb/pcan_usb_core.h: error: conflicting types for 'dump_mem': => 134:6
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Stephane Grosjean <s.grosjean@peak-system.com>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
[mkl: convert all users of dump_mem(), too]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Adopt pinctrl support to c_can driver based on c_can device
pointer, pinctrl driver configure SoC pins to d_can mode
according to definitions provided in .dts file.
In device specific device tree file 'pinctrl-names = "default";'
and 'pinctrl-0 = <&d_can1_pins>;' needs to add to configure pins
from c_can driver. d_can1_pins node contains the pinmux/config
details of d_can L/H pins.
Signed-off-by: AnilKumar Ch <anilkumar@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Adds suspend resume support to DCAN driver which enables
DCAN power down mode bit (PDR). Then DCAN will ack the local
power-down mode by setting PDA bit in STATUS register.
Signed-off-by: AnilKumar Ch <anilkumar@ti.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Add Runtime PM support to C_CAN/D_CAN controller. The runtime PM
APIs control clocks for C_CAN/D_CAN IP and prevent access to the
register of C_CAN/D_CAN IP when clock is turned off.
Signed-off-by: AnilKumar Ch <anilkumar@ti.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Add device tree support to C_CAN/D_CAN controller and usage details
are added to device tree documentation. Driver was tested on AM335x
EVM.
Signed-off-by: AnilKumar Ch <anilkumar@ti.com>
For the of binding doc:
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Modify c_can device names from *_CAN_DEVTYPE to BOSCH_*_CAN to make
use of same names for array indexes in c_can_id_table[] as well as
device names.
This patch also add indexes to c_can_id_table array.
Signed-off-by: AnilKumar Ch <anilkumar@ti.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Commit eb716c54b1 ("sunbmac: remove
unnecessary setting of skb->dev") caused the local varible 'dev'
in bigmac_init_rings to become unused. And now the compiler
warns about it.
Signed-off-by: David S. Miller <davem@davemloft.net>
On some hw, link is not up during adding iface to team. That causes event
not being sent to userspace and that may cause confusion.
Fix this bug by sending port changed event once it's added to team.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
One of the modes of Huawei E367 has this QMI/wwan interface:
I:* If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=01 Prot=07 Driver=(none)
E: Ad=83(I) Atr=03(Int.) MxPS= 64 Ivl=2ms
E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms
Huawei use subclass and protocol to identify vendor specific
functions, so adding a new vendor rule for this combination.
The Pantech devices UML290 (106c:3718) and P4200 (106c:3721) use
the same subclass to identify the QMI/wwan function. Replace the
existing device specific UML290 entries with generic vendor matching,
adding support for the Pantech P4200.
The ZTE MF683 has 6 vendor specific interfaces, all using
ff/ff/ff for cls/sub/prot. Adding a match on interface #5 which
is a QMI/wwan interface.
Cc: Fangxiaozhi (Franko) <fangxiaozhi@huawei.com>
Cc: Thomas Schäfer <tschaefer@t-online.de>
Cc: Dan Williams <dcbw@redhat.com>
Cc: Shawn J. Goff <shawn7400@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jeff Kirsher says:
====================
This series contains updates to igb and ixgbevf.
v2: updated patch description in 04 patch (ixgbevf: scheduling while
atomic in reset hw path)
...
Akeem G. Abodunrin (1):
igb: Support to enable EEE on all eee_supported devices
Alexander Duyck (2):
igb: Remove artificial restriction on RQDPC stat reading
ixgbevf: Add support for VF API negotiation
John Fastabend (1):
ixgbevf: scheduling while atomic in reset hw path
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove unnecessary temporary variable and #ifdef DEBUG block.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The dbg() USB macro is so old, it predates me. The USB networking drivers are
the last hold-out using this macro, and we want to get rid of it, so replace
the usage of it with the proper netdev_dbg() or dev_dbg() (depending on the
context) calls.
Some places we end up using a local variable for the debug call, so also
convert the other existing dev_* calls to use it as well, to save tiny amounts
of code space.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings says:
====================
1. Extension to PPS/PTP to allow for PHC devices where pulses are
subject to a variable but measurable delay.
2. PPS/PTP/PHC support for Solarflare boards with a timestamping
peripheral.
3. MTD support for updating the timestamping peripheral on those boards.
4. Fix for potential over-length requests to firmware.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This change makes it so that the VF can support the PF/VF API negotiation
protocol. Specifically in this case we are adding support for API 1.0
which will mean that the VF is capable of cleaning up buffers that span
multiple descriptors without triggering an error.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Current implementation enables EEE on only i350 device. This patch enables
EEE on all eee_supported devices. Also, configured LPI clock to keep
running before EEE is enabled on i210 and i211 devices.
Signed-off-by: Akeem G. Abodunrin <akeem.g.abodunrin@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
For some reason the reading of the RQDPC register was being artificially
limited to 4K. Instead of limiting the value we should read the value and
add the full amount. Otherwise this can lead to a misleading number of
dropped packets when the actual value is in fact much higher.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The r8169 driver currently limits the DMA burst for TX to 1024 bytes. I have
a box where this prevents the interface from using the gigabit line to its full
potential. This patch solves the problem by setting TX_DMA_BURST to unlimited.
The box has an ASRock B75M motherboard with on-board RTL8168evl/8111evl
(XID 0c900880). TSO is enabled.
I used netperf (TCP_STREAM test) to measure the dependency of TX throughput
on MTU. I did it for three different values of TX_DMA_BURST ('5'=512, '6'=1024,
'7'=unlimited). This chart shows the results:
http://michich.fedorapeople.org/r8169/r8169-effects-of-TX_DMA_BURST.png
Interesting points:
- With the current DMA burst limit (1024):
- at the default MTU=1500 I get only 842 Mbit/s.
- when going from small MTU, the performance rises monotonically with
increasing MTU only up to a peak at MTU=1076 (908 MBit/s). Then there's
a sudden drop to 762 MBit/s from which the throughput rises monotonically
again with further MTU increases.
- With a smaller DMA burst limit (512):
- there's a similar peak at MTU=1076 and another one at MTU=564.
- With unlimited DMA burst:
- at the default MTU=1500 I get nice 940 Mbit/s.
- the throughput rises monotonically with increasing MTU with no strange
peaks.
Notice that the peaks occur at MTU sizes that are multiples of the DMA burst
limit plus 52. Why 52? Because:
20 (IP header) + 20 (TCP header) + 12 (TCP options) = 52
The Realtek-provided r8168 driver (v8.032.00) uses unlimited TX DMA burst too,
except for CFG_METHOD_1 where the TX DMA burst is set to 512 bytes.
CFG_METHOD_1 appears to be the oldest MAC version of "RTL8168B/8111B",
i.e. RTL_GIGA_MAC_VER_11 in r8169. Not sure if this MAC version really needs
the smaller burst limit, or if any other versions have similar requirements.
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The internal functions for add/deleting addresses don't change
their argument.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When building 64-bit kernel with this driver we get following warnings from
the compiler:
drivers/net/ethernet/i825xx/znet.c: In function ‘hardware_init’:
drivers/net/ethernet/i825xx/znet.c:863:29: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
drivers/net/ethernet/i825xx/znet.c:870:29: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
Fix these by calling isa_virt_to_bus() before passing the pointers to
set_dma_addr().
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
MCDI supports requests up to 252 bytes long, which is only enough to
pass 63 RX queue IDs to MC_CMD_FLUSH_RX_QUEUES. However a VF may have
up to 64 RX queues, and if we try to flush them all we will generate
an over-length request and BUG() in efx_mcdi_copyin(). Currently
all VF drivers limit themselves to 32 RX queues, so reducing the
limit to 63 does no harm.
Also add a BUILD_BUG_ON in efx_mcdi_flush_rxqs() so we remember to
deal with the same problem there if EFX_MAX_CHANNELS is increased.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
On big-endian systems the MTD partition names currently have mangled
subtype numbers and are not recognised by the firmware update tool
(sfupdate).
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Add PTP IEEE-1588 support and make accesible via the PHC subsystem.
This work is based on prior code by Andrew Jackson
Signed-off-by: Stuart Hodgson <smhodgson@solarflare.com>
[bwh:
- Add byte order conversion in efx_ptp_send_times()
- Simplify conversion of PPS event times
- Add the built-in vs module check to CONFIG_SFC_PTP dependencies]
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
The maximum array sizes have been calculated on the basis of a maximum
SDU size of 255 bytes, whereas the actual maximum is 252 bytes.
Constructing a larger SDU will result in a BUG_ON in efx_mcdi_copyin.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Previously I210/I211 followed the same code flow as 82580/I350 for 1588.
However, since the register sets have changed, we must update the
implementation to accommodate the register changes.
Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Acked-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
In rare circumstances, it's possible a descriptor writeback will occur
before a timestamped Tx packet will go out on the wire, leading to the
driver believing the hardware failed to timestamp the packet. Schedule a
work item for 82576 and use the available time sync interrupt registers
on 82580 and above to account for this.
Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Change the name of the adapter in the PTP struct to enable easier
correlation between interface and PTP device.
Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Acked-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Update ethtool_get_ts_info to not report any supported functionality on
82575 and add support for V2 Sync and V2 Delay packets. In the case
where CONFIG_IGB_PTP is not defined, we should be reporting default
values.
v2: Correct the function to return EOPNOTSUPP when there is no PTP support
or the device does not support PTP. Also fix minor whitespace issue.
Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Where possible, move PTP-related functions into igb_ptp.c and update the
names of functions and variables to match the established coding style
in the files and specify that they are PTP-specific.
Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
For users without CONFIG_IGB_PTP=y, we should not be compiling any PTP
code into the driver. Tidy up the wrapping in igb to support this.
Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Acked-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
John W. Linville says:
====================
This is another batch of updates intended for the 3.7 stream.
There are not a lot of large items, but iwlwifi, mwifiex, rt2x00,
ath9k, and brcmfmac all get some attention. Wei Yongjun also provides
a series of small maintenance fixes.
This also includes a pull of the wireless tree in order to satisfy
some prerequisites for later patches.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Noticed that the byte and packet count statistics are under-
counting traffic handled by the DDP offload when there is more
than one DDP completion processed in a single call to
ixgbe_clean_rx_irq. This patch fixes that.
I tried to optimize the setting of the rss value so that it
only would have to be computed once, and only when there is
a DDP completion present.
Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Added the reg_ops file to debugfs with commands to read and write
a register to give users the ability to read and write individual
registers on the fly.
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Added the netdev_ops file to debugfs with a command to call the
ndo_tx_timeout function to give users the ability to simulate a
tx_timeout call made by the kernel.
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
