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Sebastian Bauer 7c48b95df4 ohci: Clear the interrupt counter for erroneous transfers 
This is mandated by the ohci specification. It tells at 6.4.4 on page 104
that for transfer descriptors that are retired with an error the done
queue interrupt counter is cleared as if the interrupt delay field of the
descriptions were zero.

Before this change, error conditions were handled similarly to the
successful condition which is especially troublesome for control transfers.
Some drivers (e.g., the AmigaOS-one) as well as the example code in the
spec, set the setup stage with an interrupt delay of seven (which means no
interrupt). This is fine under normal conditions, because one usually
doesn't want to be notified about the completion of this stage. However, if
an error occurs in this stage, these drivers will not get notified with the
current implementation. The fix addresses this by following the spec more
closely. Also, otherwise, the ability to set interrupt delay to seven would
be useless.

Note that Linux drivers that I looked at don't seem to be affected as they
set six as the interrupt delay presumably for the reason that they won't
get notified otherwise.

Signed-off-by: Sebastian Bauer <mail@sebastianbauer.info>
Message-id: 20180729191928.11254-1-mail@sebastianbauer.info
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-08-21 10:25:22 +02:00
..
9pfs 9p: darwin: Explicitly cast comparisons of mode_t with -1 2018-06-29 12:32:10 +02:00
acpi nvdimm: make persistence option symbolic 2018-06-11 22:19:57 +03:00
adc Include qapi/error.h exactly where needed 2018-02-09 13:50:17 +01:00
alpha hw/alpha: Use the IEC binary prefix definitions 2018-07-02 15:41:14 +02:00
arm hw/dma/pl080: Don't use CPU address space for DMA accesses 2018-08-20 11:24:33 +01:00
audio audio/hda: Fix migration 2018-07-24 17:02:02 +01:00
block block: Remove deprecated -drive option serial 2018-08-15 12:50:39 +02:00
bt hw/bt: Replace fprintf(stderr, "*\n" with error_report() 2018-01-22 09:51:00 +01:00
char imx_serial: Generate interrupt on receive data ready if enabled 2018-08-20 11:24:31 +01:00
core sysbus: always allow explicit_ofw_unit_address() to override address generation 2018-08-16 22:27:43 -03:00
cpu hw/*/realview: Fix introspection problem with 'realview_mpcore' & 'realview_gic' 2018-07-17 13:12:49 +01:00
cris hw/cris: Use the IEC binary prefix definitions 2018-07-02 15:41:15 +02:00
display virtio-gpu: fix crashes upon warm reboot with vga mode 2018-08-07 15:03:58 +01:00
dma hw/dma/pl080: Remove hw_error() if DMA is enabled 2018-08-20 11:24:33 +01:00
gpio hw/i2c: Use DeviceClass::realize instead of I2CSlaveClass::init 2018-06-01 15:14:31 +02:00
hppa hw/hppa: Use the IEC binary prefix definitions 2018-07-02 15:41:14 +02:00
i2c ppc4xx_i2c: Rewrite to model hardware more closely 2018-07-03 09:56:52 +10:00
i386 pc: acpi: fix memory hotplug regression by reducing stub SRAT entry size 2018-08-03 11:35:21 +03:00
ide block: Remove deprecated -drive option serial 2018-08-15 12:50:39 +02:00
input hw/input/tsc2005: Convert a fprintf() call to trace events 2018-06-29 15:04:18 +01:00
intc nvic: Expose NMI line 2018-08-20 11:24:33 +01:00
ipack hw/ipack: Use the IEC binary prefix definitions 2018-07-02 15:41:12 +02:00
ipmi object: fix OBJ_PROP_LINK_UNREF_ON_RELEASE ambivalence 2018-06-12 12:07:30 +02:00
isa hw/isa/smc37c669: Change the parallel I/O base to 378H 2018-06-16 19:46:54 -10:00
lm32 hw/lm32: Use the IEC binary prefix definitions 2018-07-02 15:41:15 +02:00
m68k hw/m68k: Use the IEC binary prefix definitions 2018-07-02 15:41:14 +02:00
mem pc-dimm: get_memory_region() will not fail after realize 2018-06-28 19:05:34 +02:00
microblaze hw/microblaze/xlnx-zynqmp-pmu: Fix introspection problem in 'xlnx, zynqmp-pmu-soc' 2018-07-23 15:21:25 +01:00
mips * IEC units series (Philippe) 2018-07-02 19:07:19 +01:00
misc hw/misc: Remove mmio_interface device 2018-08-20 11:24:32 +01:00
moxie Change references to serial_hds[] to serial_hd() 2018-04-26 13:57:00 +01:00
net e1000e: Prevent MSI/MSI-X storms 2018-07-20 08:30:48 +08:00
nios2 hw/nios2: Use the IEC binary prefix definitions 2018-07-02 15:41:15 +02:00
nvram fw_cfg: ignore suffixes in the bootdevice list dependent on machine class 2018-08-16 22:27:43 -03:00
openrisc Change references to serial_hds[] to serial_hd() 2018-04-26 13:57:00 +01:00
pci virtio,vhost,pci,pc: features, cleanups 2018-03-20 15:48:34 +00:00
pci-bridge virtio,vhost,pci,pc: features, fixes and cleanups 2018-02-13 16:33:31 +00:00
pci-host hw/ppc: Use the IEC binary prefix definitions 2018-07-02 15:41:16 +02:00
pcmcia
ppc fw_cfg: ignore suffixes in the bootdevice list dependent on machine class 2018-08-16 22:27:43 -03:00
rdma config: split PVRDMA from RDMA 2018-08-18 18:01:34 +03:00
riscv spike: Fix crash when introspecting the device 2018-07-19 09:05:48 -07:00
s390x s390x: remove 's390-squash-mcss' option 2018-08-20 14:18:49 +02:00
scsi block: Remove deprecated -drive option serial 2018-08-15 12:50:39 +02:00
sd sdhci: add i.MX SD Stable Clock bit 2018-08-20 11:24:32 +01:00
sh4 hw/sh4: Use the IEC binary prefix definitions 2018-07-02 15:41:15 +02:00
smbios hw/smbios: Use the IEC binary prefix definitions 2018-07-02 15:41:12 +02:00
sparc * IEC units series (Philippe) 2018-07-02 19:07:19 +01:00
sparc64 * IEC units series (Philippe) 2018-07-02 19:07:19 +01:00
ssi hw/ssi/xilinx_spips: Remove unneeded MMIO request_ptr code 2018-08-20 11:24:32 +01:00
timer hw/timer/m48t59: Move away from old_mmio accessors 2018-08-20 11:24:33 +01:00
tpm tpm: extend TPM TIS with state migration support 2018-05-24 12:07:04 -04:00
tricore hw/tricore: Use the IEC binary prefix definitions 2018-07-02 15:41:14 +02:00
unicore32 hw/input/i8042: Extract declarations from i386/pc.h into input/i8042.h 2018-03-12 16:12:48 +01:00
usb ohci: Clear the interrupt counter for erroneous transfers 2018-08-21 10:25:22 +02:00
vfio vfio/ccw/pci: Allow devices to opt-in for ballooning 2018-08-17 09:27:16 -06:00
virtio kvm: Use inhibit to prevent ballooning without synchronous mmu 2018-08-17 09:27:15 -06:00
watchdog hw/watchdog/cmsdk_apb_watchdog: Implement CMSDK APB watchdog module 2018-08-20 11:24:33 +01:00
xen xen: Don't use memory_region_init_ram_nomigrate() in pci_assign_dev_load_option_rom() 2018-06-22 13:28:42 +01:00
xenpv hw/xen: Use the IEC binary prefix definitions 2018-07-02 15:41:13 +02:00
xtensa hw/xtensa: Use the IEC binary prefix definitions 2018-07-02 15:41:14 +02:00
Makefile.objs hw: allow compiling out SCSI 2018-06-01 15:14:31 +02:00