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OpenCloudOS-Kernel
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Clément Léger 753a026cfe net: ocelot: add FDMA support 
Ethernet frames can be extracted or injected autonomously to or from
the device’s DDR3/DDR3L memory and/or PCIe memory space. Linked list
data structures in memory are used for injecting or extracting Ethernet
frames. The FDMA generates interrupts when frame extraction or
injection is done and when the linked lists need updating.

The FDMA is shared between all the ethernet ports of the switch and
uses a linked list of descriptors (DCB) to inject and extract packets.
Before adding descriptors, the FDMA channels must be stopped. It would
be inefficient to do that each time a descriptor would be added so the
channels are restarted only once they stopped.

Both channels uses ring-like structure to feed the DCBs to the FDMA.
head and tail are never touched by hardware and are completely handled
by the driver. On top of that, page recycling has been added and is
mostly taken from gianfar driver.

Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Co-developed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Clément Léger <clement.leger@bootlin.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 		2021-12-10 20:56:58 -08:00
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accessibility
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acpi Merge branch 'acpi-properties' 2021-11-26 19:45:31 +01:00
amba ARM: 9119/1: amba: Properly handle device probe without IRQ domain 2021-10-19 10:30:53 +01:00
android binder: fix test regression due to sender_euid change 2021-11-17 16:08:52 +01:00
ata ata: replace snprintf in show functions with sysfs_emit 2021-12-02 13:13:45 +09:00
atm
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auxdisplay auxdisplay: cfag12864bfb: code indent should use tabs where possible 2021-10-22 00:13:16 +02:00
base regmap: allow to define reg_update_bits for no bus configuration 2021-11-15 13:27:13 +00:00
bcma pci-v5.16-changes 2021-11-06 14:36:12 -07:00
block block-5.16-2021-12-03 2021-12-04 08:38:25 -08:00
bluetooth bluetooth-next pull request for net-next: 2021-11-17 14:52:44 +00:00
bus - Config updates for BMIPS platform 2021-11-13 09:11:33 -08:00
cdrom for-5.16/cdrom-2021-10-29 2021-11-01 10:09:14 -07:00
char parisc architecture bug and warning fixes for kernel v5.16-rc4 2021-12-05 12:58:18 -08:00
clk Devicetree fixes for v5.16, take 1: 2021-11-14 11:11:51 -08:00
clocksource ARM: 2021-11-02 11:24:14 -07:00
comedi comedi: dt9812: fix DMA buffers on stack 2021-10-30 10:54:47 +02:00
connector
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counter counter: Fix use-after-free race condition for events_queue_size write 2021-10-21 13:02:47 +02:00
cpufreq cpufreq: Fix a comment in cpufreq_policy_free 2021-12-01 20:02:11 +01:00
cpuidle ARM: SoC drivers for 5.16 2021-11-03 17:00:52 -07:00
crypto pci-v5.16-changes 2021-11-06 14:36:12 -07:00
cxl cxl for v5.16 2021-11-08 11:49:48 -08:00
dax
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dca
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devfreq Merge branches 'pm-opp' and 'pm-cpufreq' 2021-11-10 14:06:51 +01:00
dio
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dma dmaengine updates for v5.16-rc1 2021-11-10 11:47:55 -08:00
dma-buf dma-buf: system_heap: Use 'for_each_sgtable_sg' in pages free flow 2021-12-01 15:30:10 +05:30
edac - amd64_edac: Add support for three-rank interleaving mode which is 2021-11-01 15:02:49 -07:00
eisa
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extcon extcon: usbc-tusb320: Add support for TUSB320L 2021-10-27 14:13:39 +09:00
firewire SCSI misc on 20211105 2021-11-05 08:42:02 -07:00
firmware firmware: smccc: Fix check for ARCH_SOC_ID not implemented 2021-11-22 11:42:59 +01:00
fpga
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fsi fsi: sbefifo: Use interruptible mutex locking 2021-10-22 09:54:33 +10:30
gnss
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gpio gpio: rockchip: needs GENERIC_IRQ_CHIP to fix build errors 2021-11-16 09:41:44 +01:00
gpu Networking fixes for 5.16-rc5, including fixes from bpf, can and netfilter. 2021-12-09 11:26:44 -08:00
greybus
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hid HID: Ignore battery for Elan touchscreen on Asus UX550VE 2021-12-08 18:16:07 +01:00
hsi HSI changes for the 5.16 series 2021-11-04 13:56:55 -07:00
hv Drivers: hv: balloon: Use VMBUS_RING_SIZE() wrapper for dm_ring_size 2021-11-15 12:35:56 +00:00
hwmon Merge branch 'akpm' (patches from Andrew) 2021-11-06 14:08:17 -07:00
hwspinlock
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hwtracing coresight: trbe: Work around write to out of range 2021-10-27 11:46:01 -06:00
i2c i2c: rk3x: Handle a spurious start completion interrupt flag 2021-11-30 22:38:15 +01:00
i3c
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idle
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iio chrome platform changes for 5.16 2021-11-10 11:36:43 -08:00
infiniband Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-11-26 13:45:19 -08:00
input xen: add "not_essential" flag to struct xenbus_driver 2021-11-23 13:41:29 -06:00
interconnect
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iommu iommu/vt-d: Fix unmap_pages support 2021-11-26 22:54:47 +01:00
ipack
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irqchip irqchip/sifive-plic: Fixup EOI failed when masked 2021-11-12 16:09:51 +00:00
isdn mISDN: Fix return values of the probe function 2021-10-19 13:09:28 +01:00
leds leds: trigger: Disable CPU trigger on PREEMPT_RT 2021-10-13 20:07:57 +02:00
macintosh Merge branch 'akpm' (patches from Andrew) 2021-11-06 14:08:17 -07:00
mailbox mailbox: imx: support i.MX8ULP S4 MU 2021-10-29 23:03:09 -05:00
mcb
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md for-5.16/drivers-2021-11-09 2021-11-09 11:24:08 -08:00
media media fixes for v5.16-rc3 2021-11-22 14:58:57 -08:00
memory memory: mtk-smi: Fix a null dereference for the ostd 2021-11-25 14:46:00 +01:00
memstick memstick: r592: Fix a UAF bug when removing the driver 2021-10-19 13:04:42 +02:00
message pci-v5.16-changes 2021-11-06 14:36:12 -07:00
mfd chrome platform changes for 5.16 2021-11-10 11:36:43 -08:00
misc mei: bus: add client dma interface 2021-11-26 18:31:46 +02:00
mmc mmc: spi: Add device-tree SPI IDs 2021-11-23 12:32:28 +01:00
most most: fix control-message timeouts 2021-10-26 19:12:01 +02:00
mtd mtd: dataflash: Add device-tree SPI IDs 2021-12-03 14:33:59 +01:00
mux mux: add support for delay after muxing 2021-10-21 20:02:42 +01:00
net net: ocelot: add FDMA support 2021-12-10 20:56:58 -08:00
nfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-11-26 13:45:19 -08:00
ntb
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nubus
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nvdimm libnvdimm for v5.16 2021-11-10 10:56:02 -08:00
nvme nvmet: use IOCB_NOWAIT only if the filesystem supports it 2021-11-25 15:02:40 +01:00
nvmem Merge 5.15-rc6 into char-misc-next 2021-10-18 09:29:27 +02:00
of Devicetree fixes for v5.16, take 1: 2021-11-14 11:11:51 -08:00
opp
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parisc
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parport
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pci Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf 2021-12-08 16:06:44 -08:00
pcmcia pcmcia: hide the MAC address helpers if !NET 2021-11-22 14:02:52 +00:00
perf ACPI updates for 5.16-rc1 2021-11-02 15:58:39 -07:00
phy phy: marvell: phy-mvebu-cp110-comphy: add support for 5gbase-r 2021-11-23 12:14:48 +00:00
pinctrl pinctrl: qcom: sm8350: Correct UFS and SDC offsets 2021-11-16 02:19:15 +01:00
platform platform-drivers-x86 for v5.16-3 2021-12-07 10:10:20 -08:00
pnp
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power power: supply: bq25890: Fix initial setting of the F_CONV_RATE field 2021-11-02 16:48:47 +01:00
powercap powercap: DTPM: Drop unused local variable from init_dtpm() 2021-12-03 17:51:59 +01:00
pps
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ps3
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ptp ptp: ocp: Fix a couple NULL vs IS_ERR() checks 2021-11-18 12:12:55 +00:00
pwm pwm: vt8500: Rename pwm_busy_wait() to make it obviously driver-specific 2021-11-05 11:57:13 +01:00
rapidio rapidio: avoid bogus __alloc_size warning 2021-11-06 13:30:33 -07:00
ras
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regulator - Remove Drivers 2021-11-08 12:07:52 -08:00
remoteproc remoteproc: Remove vdev_to_rvdev and vdev_to_rproc from remoteproc API 2021-10-15 09:49:55 -05:00
reset ARM: SoC drivers for 5.16 2021-11-03 17:00:52 -07:00
rpmsg remoteproc updates for v5.16 2021-11-10 09:07:26 -08:00
rtc RTC for 5.16 2021-11-12 11:44:31 -08:00
s390 s390/qeth: remove check for packing mode in qeth_check_outbound_queue() 2021-12-07 22:01:03 -08:00
sbus
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scsi SCSI fixes on 20211204 2021-12-04 08:28:42 -08:00
sh
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siox
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slimbus
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soc Merge branch 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2021-11-10 16:15:54 -08:00
soundwire soundwire: qcom: add debugfs entry for soundwire register dump 2021-10-20 20:54:59 +05:30
spi spi: Fixes for v5.16 2021-11-18 14:35:41 -08:00
spmi
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ssb ssb: Use dev_driver_string() instead of pci_dev->driver->name 2021-10-12 17:50:12 -05:00
staging Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-11-26 13:45:19 -08:00
target scsi: target: configfs: Delete unnecessary checks for NULL 2021-11-18 23:07:02 -05:00
tc
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tee optee: fix kfree NULL pointer 2021-11-16 14:41:23 +01:00
thermal Merge branch 'thermal-int340x' 2021-11-18 20:40:28 +01:00
thunderbolt thunderbolt: Changes for v5.16 merge window 2021-10-25 13:17:29 +02:00
tty TTY/Serial fixes for 5.16-rc4 2021-12-05 09:13:20 -08:00
uio Drivers: hv: vmbus: Mark vmbus ring buffer visible to host in Isolation VM 2021-10-28 11:22:23 +00:00
usb Networking fixes for 5.16-rc5, including fixes from bpf, can and netfilter. 2021-12-09 11:26:44 -08:00
vdpa vdpa_sim: avoid putting an uninitialized iova_domain 2021-11-24 19:00:29 -05:00
vfio vfio/pci: Fix OpRegion read 2021-11-30 11:41:49 -07:00
vhost vhost-vdpa: clean irqs before reseting vdpa device 2021-11-24 19:00:28 -05:00
video TTY/Serial fixes for 5.16-rc4 2021-12-05 09:13:20 -08:00
virt
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virtio Revert "virtio_ring: validate used buffer length" 2021-11-24 18:47:27 -05:00
visorbus
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vlynq
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vme
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w1
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watchdog linux-watchdog 5.16-rc1 tag 2021-11-10 09:41:22 -08:00
xen xen: detect uninitialized xenbus in xenbus_init 2021-11-24 08:55:15 -06:00
zorro
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Kconfig
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Makefile
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