Yannick Vignon
084a1858e2
net: stmmac: Do not enable RX FIFO overflow interrupts ...
[ Upstream commit 8a7cb245cf28cb3e541e0d6c8624b95d079e155b ]
The RX FIFO overflows when the system is not able to process all received
packets and they start accumulating (first in the DMA queue in memory,
then in the FIFO). An interrupt is then raised for each overflowing packet
and handled in stmmac_interrupt(). This is counter-productive, since it
brings the system (or more likely, one CPU core) to its knees to process
the FIFO overflow interrupts.
stmmac_interrupt() handles overflow interrupts by writing the rx tail ptr
into the corresponding hardware register (according to the MAC spec, this
has the effect of restarting the MAC DMA). However, without freeing any rx
descriptors, the DMA stops right away, and another overflow interrupt is
raised as the FIFO overflows again. Since the DMA is already restarted at
the end of stmmac_rx_refill() after freeing descriptors, disabling FIFO
overflow interrupts and the corresponding handling code has no side effect,
and eliminates the interrupt storm when the RX FIFO overflows.
Signed-off-by: Yannick Vignon <yannick.vignon@nxp.com>
Link: https://lore.kernel.org/r/20210506143312.20784-1-yannick.vignon@oss.nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-05-22 11:38:30 +02:00
ACPI: scan: Fix a memory leak in an error handling path
2021-05-19 10:08:30 +02:00
ata: libahci_platform: fix IRQ check
2021-05-14 09:44:24 +02:00
atm: idt77252: fix null-ptr-dereference
2021-03-30 14:35:21 +02:00
PM: runtime: Fix unpaired parent child_count for force_resume
2021-05-19 10:08:20 +02:00
nbd: Fix NULL pointer in flush_workqueue
2021-05-19 10:08:30 +02:00
bus: qcom: Put child node before return
2021-05-14 09:44:19 +02:00
tpm, tpm_tis: Reserve locality in tpm_tis_resume()
2021-05-19 10:08:20 +02:00
clk: exynos7: Mark aclk_fsys1_200 as critical
2021-05-19 10:08:33 +02:00
counter: stm32-timer-cnt: fix ceiling miss-alignment with reload register
2021-04-14 08:24:09 +02:00
cpufreq: armada-37xx: Fix determining base CPU frequency
2021-05-14 09:44:21 +02:00
crypto: qat - Fix a double free in adf_create_ring
2021-05-14 09:44:20 +02:00
PM / devfreq: Use more accurate returned new_freq as resume_freq
2021-05-14 09:44:20 +02:00
dmaengine: dw-edma: Fix crash on loading/unloading driver
2021-05-22 11:38:28 +02:00
extcon: arizona: Fix various races on driver unbind
2021-05-11 14:04:09 +02:00
firewire: nosy: Fix a use-after-free bug in nosy_ioctl()
2021-04-07 14:47:43 +02:00
firmware: qcom-scm: Fix QCOM_SCM configuration
2021-05-14 09:44:22 +02:00
gpiolib: acpi: Add quirk to ignore EC wakeups on Dell Venue 10 Pro 5055
2021-05-22 11:38:29 +02:00
drm/amd/display: Fix two cursor duplication when using overlay
2021-05-22 11:38:29 +02:00
HID: plantronics: Workaround for double volume key presses
2021-05-14 09:44:26 +02:00
HSI: core: fix resource leaks in hsi_add_client_from_dt()
2021-05-14 09:44:25 +02:00
Drivers: hv: vmbus: Increase wait time for VMbus unload
2021-05-14 09:44:22 +02:00
hwmon: (occ) Fix poll rate limiting
2021-05-19 10:08:30 +02:00
intel_th: pci: Add Alder Lake-M support
2021-05-11 14:04:15 +02:00
i2c: bail out early when RDWR parameters are wrong
2021-05-19 10:08:21 +02:00
Revert "i3c master: fix missing destroy_workqueue() on error in i3c_master_register"
2021-05-14 09:44:15 +02:00
iio: tsl2583: Fix division by a zero lux_val
2021-05-19 10:08:31 +02:00
RDMA/bnxt_re: Fix a double free in bnxt_qplib_alloc_res
2021-05-14 09:44:32 +02:00
Input: silead - add workaround for x86 BIOS-es which bring the chip up in a stuck state
2021-05-22 11:38:28 +02:00
interconnect: core: fix error return code of icc_link_destroy()
2021-04-16 11:46:37 +02:00
iommu/amd: Remove performance counter pre-initialization test
2021-05-19 10:08:22 +02:00
irqchip/gic-v3: Fix OF_BAD_ADDR error handling
2021-05-14 09:44:20 +02:00
isdn: capi: fix mismatched prototypes
2021-05-22 11:38:27 +02:00
md: Fix missing unused status line of /proc/mdstat
2021-05-14 09:44:13 +02:00
media: v4l2-ctrls.c: fix race condition in hdl->requests list
2021-05-14 09:44:24 +02:00
memory: pl353: fix mask of ECC page_size config register
2021-05-14 09:44:19 +02:00
mfd: stm32-timers: Avoid clearing auto reload register
2021-05-14 09:44:25 +02:00
kgdb: fix gcc-11 warning on indentation
2021-05-22 11:38:27 +02:00
mmc: sdhci-pci: Add PCI IDs for Intel LKF
2021-05-11 14:04:10 +02:00
mtd: rawnand: gpmi: Fix a double free in gpmi_nand_init
2021-05-14 09:44:20 +02:00
net: stmmac: Do not enable RX FIFO overflow interrupts
2021-05-22 11:38:30 +02:00
nfc: pn533: prevent potential memory corruption
2021-05-14 09:44:27 +02:00
libnvdimm/region: Fix nvdimm_has_flush() to handle ND_REGION_ASYNC
2021-04-21 12:56:16 +02:00
nvme: do not try to reconfigure APST when the controller is not live
2021-05-19 10:08:33 +02:00
Revert "fdt: Properly handle "no-map" field in the memory region"
2021-05-14 09:44:33 +02:00
ACPI / hotplug / PCI: Fix reference count leak in enable_slot()
2021-05-22 11:38:28 +02:00
perf/arm_pmu_platform: Fix error handling
2021-05-11 14:04:06 +02:00
phy: marvell: ARMADA375_USBCLUSTER_PHY should not default to y, unconditionally
2021-05-14 09:44:19 +02:00
pinctrl: ingenic: Improve unreachable code generation
2021-05-22 11:38:27 +02:00
platform/x86: pmc_atom: Match all Beckhoff Automation baytrail boards with critclk_systems DMI table
2021-05-14 09:44:22 +02:00
power: supply: s3c_adc_battery: fix possible use-after-free in s3c_adc_bat_remove()
2021-05-11 14:04:11 +02:00
RAS/CEC: Correct ce_add_elem()'s returned values
2021-04-14 08:24:18 +02:00
regulator: bd9571mwv: Fix AVS and DVFS voltage range
2021-04-14 08:24:13 +02:00
rpmsg: qcom_glink_native: fix error return code of qcom_glink_rx_data()
2021-05-19 10:08:25 +02:00
rtc: ds1307: Fix wday settings for rx8130
2021-05-19 10:08:26 +02:00
scsi: lpfc: Fix illegal memory access on Abort IOCBs
2021-05-22 11:38:29 +02:00
soc: aspeed: fix a ternary sign expansion bug
2021-05-14 09:44:23 +02:00
soundwire: stream: fix memory leak in stream config error path
2021-05-14 09:44:19 +02:00
spi: fsl-lpspi: Fix PM reference leak in lpspi_prepare_xfer_hardware()
2021-05-14 09:44:21 +02:00
media: omap4iss: return error code when omap4iss_get() failed
2021-05-14 09:44:23 +02:00
scsi: target: tcmu: Return from tcmu_handle_completions() if cmd_id not found
2021-05-22 11:38:29 +02:00
tee: optee: do not check memref size on return from Secure World
2021-05-11 14:04:06 +02:00
thermal/core/fair share: Lock the thermal zone while looping over instances
2021-05-19 10:08:32 +02:00
serial: core: return early on unsupported ioctls
2021-05-14 09:44:22 +02:00
usb: sl811-hcd: improve misleading indentation
2021-05-22 11:38:27 +02:00
vfio/mdev: Do not allow a mdev_type to have a NULL parent pointer
2021-05-14 09:44:24 +02:00
vhost: Fix vhost_vq_reset()
2021-04-07 14:47:39 +02:00
fbdev: zero-fill colormap in fbcmap.c
2021-05-11 14:04:04 +02:00
xen/events: fix setting irq affinity
2021-04-16 11:46:39 +02:00
084a1858e2