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76abb5d675
linux/drivers
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Sean Anderson 76abb5d675 net: xilinx: axienet: Add statistics support 
Add support for reading the statistics counters, if they are enabled.
The counters may be 64-bit, but we can't detect this statically as
there's no ability bit for it and the counters are read-only. Therefore,
we assume the counters are 32-bits by default. To ensure we don't miss
an overflow, we read all counters at 13-second intervals. This should be
often enough to ensure the bytes counters don't wrap at 2.5 Gbit/s.

Another complication is that the counters may be reset when the device
is reset (depending on configuration). To ensure the counters persist
across link up/down (including suspend/resume), we maintain our own
versions along with the last counter value we saw. Because we might wait
up to 100 ms for the reset to complete, we use a mutex to protect
writing hw_stats. We can't sleep in ndo_get_stats64, so we use a seqlock
to protect readers.

We don't bother disabling the refresh work when we detect 64-bit
counters. This is because the reset issue requires us to read
hw_stat_base and reset_in_progress anyway, which would still require the
seqcount. And I don't think skipping the task is worth the extra
bookkeeping.

We can't use the byte counters for either get_stats64 or
get_eth_mac_stats. This is because the byte counters include everything
in the frame (destination address to FCS, inclusive). But
rtnl_link_stats64 wants bytes excluding the FCS, and
ethtool_eth_mac_stats wants to exclude the L2 overhead (addresses and
length/type). It might be possible to calculate the byte values Linux
expects based on the frame counters, but I think it is simpler to use
the existing software counters.

get_ethtool_stats is implemented for nonstandard statistics. This
includes the aforementioned byte counters, VLAN and PFC frame
counters, and user-defined (e.g. with custom RTL) counters.

Signed-off-by: Sean Anderson <sean.anderson@linux.dev>
Link: https://patch.msgid.link/20240820175343.760389-3-sean.anderson@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-21 17:49:20 -07:00
..
accel
accessibility
acpi RISC-V Patches for the 6.11 Merge Window, Part 2 2024-07-27 10:14:34 -07:00
amba
android binder_alloc: Fix sleeping function called from invalid context 2024-07-31 13:48:25 +02:00
ata Revert "ata: libata-scsi: Honor the D_SENSE bit for CK_COND=1 and no error" 2024-08-14 15:49:37 +02:00
atm atm: idt77252: prevent use after free in dequeue_rx() 2024-08-12 10:41:44 +01:00
auxdisplay auxdisplay updates for v6.11 2024-07-26 11:04:28 -07:00
base driver core: Fix uevent_show() vs driver detach race 2024-07-31 14:41:44 +02:00
bcma
block block-6.11-20240726 2024-07-27 15:28:53 -07:00
bluetooth Bluetooth: hci_qca: fix a NULL-pointer derefence at shutdown 2024-08-07 16:35:53 -04:00
bus Devicetree fixes for 6.11, part 1 2024-07-27 12:46:16 -07:00
cache cache: StarFive: Require a 64-bit system 2024-08-01 07:15:02 -07:00
cdrom sysctl: treewide: constify the ctl_table argument of proc_handlers 2024-07-24 20:59:29 +02:00
cdx
char char: add missing NetWinder MODULE_DESCRIPTION() macros 2024-07-31 13:47:45 +02:00
clk Devicetree fixes for 6.11, part 1 2024-07-27 12:46:16 -07:00
clocksource of: remove internal arguments from of_property_for_each_u32() 2024-07-25 06:53:47 -05:00
comedi
connector
counter Char/Misc and other driver changes for 6.11-rc1 2024-07-19 15:55:08 -07:00
cpufreq cpufreq: intel_pstate: Update Balance performance EPP for Emerald Rapids 2024-08-02 14:40:13 +02:00
cpuidle
crypto ARM: 2024-07-20 12:41:03 -07:00
cxl CXL for v6.11 merge window 2024-07-28 09:33:28 -07:00
dax Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
dca Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
devfreq
dio dio: Have dio_bus_match() callback take a const * 2024-07-10 15:38:14 +02:00
dma Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
dma-buf - 875fa64577da ("mm/hugetlb_vmemmap: fix race with speculative PFN 2024-07-21 17:15:46 -07:00
dpll
edac minmax: make generic MIN() and MAX() macros available everywhere 2024-07-28 15:49:18 -07:00
eisa
extcon
firewire Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
firmware ARM updates for v6.11-rc1 2024-07-29 10:33:51 -07:00
fpga Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
fsi fsi: add missing MODULE_DESCRIPTION() macros 2024-07-31 13:40:00 +02:00
gnss
gpio gpio fixes for v6.11-rc1 2024-07-27 12:54:06 -07:00
gpu Merge tag 'drm-intel-fixes-2024-08-08' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes 2024-08-09 17:16:29 +10:00
greybus Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
hid for-linus-2024072901 2024-07-29 13:07:05 -07:00
hsi Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
hte
hv Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
hwmon minmax: make generic MIN() and MAX() macros available everywhere 2024-07-28 15:49:18 -07:00
hwspinlock
hwtracing Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
i2c Two fixes on the Qualcomm GENI I2C controller are cleaning up the 2024-08-09 15:28:08 +02:00
i3c I3C for 6.11 2024-07-27 10:53:06 -07:00
idle
iio of: remove internal arguments from of_property_for_each_u32() 2024-07-25 06:53:47 -05:00
infiniband IOMMU Updates for Linux v6.11 2024-07-19 09:59:58 -07:00
input Input: MT - limit max slots 2024-07-29 10:44:48 -07:00
interconnect Char/Misc and other driver changes for 6.11-rc1 2024-07-19 15:55:08 -07:00
iommu IOMMU Fixes for Linux v6.11-rc1 2024-07-27 12:39:55 -07:00
ipack
irqchip irqchip/riscv-aplic: Retrigger MSI interrupt on source configuration 2024-08-10 10:42:04 +02:00
isdn mISDN: Fix a use after free in hfcmulti_tx() 2024-07-25 08:05:05 -07:00
leds - Core Frameworks 2024-07-17 17:51:30 -07:00
macintosh sysctl: treewide: constify the ctl_table argument of proc_handlers 2024-07-25 12:58:36 -07:00
mailbox mailbox: mtk-cmdq: Move devm_mbox_controller_register() after devm_pm_runtime_enable() 2024-07-19 21:25:23 -05:00
mcb Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
md minmax: add a few more MIN_T/MAX_T users 2024-07-28 13:41:14 -07:00
media media fixes for v6.11-rc4 2024-08-15 10:23:19 -07:00
memory
memstick Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
message
mfd Devicetree fixes for 6.11, part 1 2024-07-27 12:46:16 -07:00
misc misc: mrvl-cn10k-dpi: add PCI_IOV dependency 2024-07-31 13:47:27 +02:00
mmc Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
most Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
mtd This pull request contains updates (actually, just fixes) for UBI and UBIFS: 2024-07-28 11:51:51 -07:00
mux
net net: xilinx: axienet: Add statistics support 2024-08-21 17:49:20 -07:00
nfc nfc: pn533: Avoid -Wflex-array-member-not-at-end warnings 2024-08-21 17:15:43 -07:00
ntb Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
nubus
nvdimm Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
nvme nvme: reorganize nvme_ns_head fields 2024-07-31 07:40:10 -07:00
nvmem Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
of IOMMU Updates for Linux v6.11 2024-07-19 09:59:58 -07:00
opp Merge branches 'pm-opp' and 'pm-tools' 2024-07-15 18:55:14 +02:00
parisc
parport sysctl: treewide: constify the ctl_table argument of proc_handlers 2024-07-25 12:58:36 -07:00
pci PCI: pciehp: Retain Power Indicator bits for userspace indicators 2024-08-01 12:58:03 -05:00
pcmcia Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
peci Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
perf perf: riscv: Fix selecting counters in legacy mode 2024-08-01 07:15:13 -07:00
phy phy-for-6.11 2024-07-24 13:11:28 -07:00
pinctrl of: remove internal arguments from of_property_for_each_u32() 2024-07-25 06:53:47 -05:00
platform platform-drivers-x86 for v6.11-3 2024-08-12 08:21:52 -07:00
pmdomain mdomain: Merge branch fixes into next 2024-07-09 13:12:41 +02:00
pnp
power Power Supply Fixes for 6.11 cycle 2024-08-07 09:45:21 -07:00
powercap
pps Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
ps3
ptp Networking changes for 6.11. Not much excitement - a handful of large 2024-07-16 19:28:34 -07:00
pwm of: remove internal arguments from of_property_for_each_u32() 2024-07-25 06:53:47 -05:00
rapidio
ras - The AMD memory controllers data fabric version 4.5 supports 2024-07-15 18:20:24 -07:00
regulator regulator: Fixes for v6.11 2024-07-27 12:27:52 -07:00
remoteproc rpmsg updates for v6.11 2024-07-23 13:41:59 -07:00
reset Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
rpmsg Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
rtc rtc: stm32: add new st,stm32mp25-rtc compatible and check RIF configuration 2024-07-10 17:15:33 +02:00
s390 s390/cio: Add missing MODULE_DESCRIPTION() macros 2024-07-31 16:30:20 +02:00
sbus sbus: add missing MODULE_DESCRIPTION() macros 2024-07-11 15:42:03 +02:00
scsi SCSI fixes on 20240811 2024-08-11 09:28:04 -07:00
sh
siox Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
slimbus Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
soc Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
soundwire Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
spi spi: spi-fsl-lpspi: Fix scldiv calculation 2024-08-07 23:45:12 +01:00
spmi spmi: pmic-arb: add missing newline in dev_err format strings 2024-07-31 13:49:28 +02:00
ssb
staging media fixes for v6.11-rc4 2024-08-15 10:23:19 -07:00
target
tc
tee Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
thermal Merge branch 'thermal-intel' 2024-07-31 12:31:27 +02:00
thunderbolt Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
tty tty: vt: conmakehash: cope with abs_srctree no longer in env 2024-07-31 12:31:32 +02:00
ufs scsi: ufs: core: Fix hba->last_dme_cmd_tstamp timestamp updating logic 2024-08-01 21:59:00 -04:00
uio
usb usb: typec: ucsi: Fix a deadlock in ucsi_send_command_common() 2024-08-07 12:48:30 +02:00
vdpa virtio: fixes 2024-07-29 12:53:37 -07:00
vfio Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
vhost Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-08-08 14:04:17 -07:00
video - 875fa64577da ("mm/hugetlb_vmemmap: fix race with speculative PFN 2024-07-21 17:15:46 -07:00
virt ARM: 2024-07-20 12:41:03 -07:00
virtio virtio: allow driver to disable the configure change notification 2024-08-15 19:14:19 -07:00
w1
watchdog linux-watchdog 6.11-rc1 tag 2024-07-25 10:18:35 -07:00
xen Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
zorro Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
Kconfig
Makefile