The "again" assignment is meaningless before g_assert_not_reached.
In addition, the break statements no longer needs to be after
g_assert_not_reached.
Clang static code analyzer show warning:
hw/usb/hcd-ehci.c:2108:13: warning: Value stored to 'again' is never read
again = -1;
^ ~~
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200226084647.20636-13-kuhn.chenqun@huawei.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Currently usb-serial devices are unable to send data into guests with
the xhci controller. Data is copied into the usb-serial's buffer, but
it is not sent into the guest. Data coming out of the guest works
properly. usb-serial devices work properly with ehci.
Have usb-serial call usb_wakeup() when receiving data from the chardev.
This seems to notify the xhci controller and fix inbound data flow.
Also add USB_CFG_ATT_WAKEUP to the device's bmAttributes. This matches
a real FTDI serial adapter's bmAttributes.
Signed-off-by: Jason Andryuk <jandryuk@gmail.com>
Message-id: 20200306140917.26726-1-jandryuk@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Mapping object-add to the command line as is doesn't result in nice
syntax because of the nesting introduced with 'props'. This becomes
nicer and more consistent with device_add and netdev_add when we accept
properties for the object on the top level instead.
'props' is still accepted after this patch, but marked as deprecated.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200224143008.13362-8-kwolf@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Merge remote-tracking branch 'remotes/stefanberger/tags/pull-tpm-2020-03-04-2' into staging
Merge tpm 2020/03/04 v2
# gpg: Signature made Thu 05 Mar 2020 17:21:05 GMT
# gpg: using RSA key B818B9CADF9089C2D5CEC66B75AD65802A0B4211
# gpg: Good signature from "Stefan Berger <stefanb@linux.vnet.ibm.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: B818 B9CA DF90 89C2 D5CE C66B 75AD 6580 2A0B 4211
* remotes/stefanberger/tags/pull-tpm-2020-03-04-2:
test: tpm-tis: Add Sysbus TPM-TIS device test
test: tpm-tis: Get prepared to share tests between ISA and sysbus devices
test: tpm: pass optional machine options to swtpm test functions
docs/specs/tpm: Document TPM_TIS sysbus device for ARM
hw/arm/virt: vTPM support
tpm: Add the SysBus TPM TIS device
tpm: Separate TPM_TIS and TPM_TIS_ISA configs
tpm: Separate tpm_tis common functions from isa code
tpm: Use TPMState as a common struct
tpm: rename TPM_TIS into TPM_TIS_ISA
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Let the TPM TIS SYSBUS device be dynamically instantiable
in ARM virt. A device tree node is dynamically created
(TPM via MMIO).
The TPM Physical Presence interface (PPI) is not supported.
To run with the swtmp TPM emulator, the qemu command line must
be augmented with:
-chardev socket,id=chrtpm,path=swtpm-sock \
-tpmdev emulator,id=tpm0,chardev=chrtpm \
-device tpm-tis-device,tpmdev=tpm0 \
swtpm/libtpms command line example:
swtpm socket --tpm2 -t -d --tpmstate dir=/tmp/tpm \
--ctrl type=unixio,path=swtpm-sock
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Message-id: 20200305165149.618-7-eric.auger@redhat.com
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Introduce the tpm-tis-device which is a sysbus device
and is bound to be used on ARM.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Message-id: 20200305165149.618-6-eric.auger@redhat.com
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Let's separate the compilation of tpm_tis_common.c from
the compilation of tpm_tis_isa.c
The common part will be also compiled along with the
tpm_tis_sysbus device.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Message-id: 20200305165149.618-5-eric.auger@redhat.com
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Move the device agnostic code into tpm_tis_common.c and
put the ISA device specific code into tpm_tis_isa.c
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Message-id: 20200305165149.618-4-eric.auger@redhat.com
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
As we plan to introduce a SysBus TPM TIS device, let's
make the TPMState a common struct usable by both the
ISADevice and the SysBusDevice. TPMStateISA embeds the
struct and inherits from the ISADevice.
The prototype of functions bound to be used by both
the ISA and SysBus devices is changed to take TPMState
handle.
A bunch of structs also are renamed to be specialized
for the ISA device. Besides those transformations, no
functional change is expected.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Message-id: 20200305165149.618-3-eric.auger@redhat.com
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
As we plan to introduce a sysbus TPM_TIS, let's rename
TPM_TIS into TPM_TIS_ISA.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Message-id: 20200305165149.618-2-eric.auger@redhat.com
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
The Cubieboard machine does not support the -bios argument.
Report an error when -bios is used and exit immediately.
Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Message-id: 20200227220149.6845-5-nieklinnenbank@gmail.com
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The Cubieboard contains either 512MiB or 1GiB of onboard RAM [1].
Prevent changing RAM to a different size which could break user programs.
[1] http://linux-sunxi.org/Cubieboard
Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Message-id: 20200227220149.6845-4-nieklinnenbank@gmail.com
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The Cubieboard has an ARM Cortex-A8. Instead of simply ignoring a
bogus -cpu option provided by the user, give them an error message so
they know their command line is wrong.
Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Message-id: 20200227220149.6845-3-nieklinnenbank@gmail.com
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: tweaked commit message]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The Cubieboard is a singleboard computer with an Allwinner A10 System-on-Chip [1].
As documented in the Allwinner A10 User Manual V1.5 [2], the SoC has an ARM
Cortex-A8 processor. Currently the Cubieboard machine definition specifies the
ARM Cortex-A9 in its description and as the default CPU.
This patch corrects the Cubieboard machine definition to use the ARM Cortex-A8.
The only user-visible effect is that our textual description of the
machine was wrong, because hw/arm/allwinner-a10.c always creates a
Cortex-A8 CPU regardless of the default value in the MachineClass struct.
[1] http://docs.cubieboard.org/products/start#cubieboard1
[2] https://linux-sunxi.org/File:Allwinner_A10_User_manual_V1.5.pdf
Fixes: 8a863c8120
Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Message-id: 20200227220149.6845-2-nieklinnenbank@gmail.com
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[note in commit message that the bug didn't have much visible effect]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
There are some memleaks when we call 'device_list_properties'. This patch move timer_new from init into realize to fix it.
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Pan Nengyuan <pannengyuan@huawei.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20200227025055.14341-7-pannengyuan@huawei.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
There are some memleaks when we call 'device_list_properties'. This patch move timer_new from init into realize to fix it.
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Pan Nengyuan <pannengyuan@huawei.com>
Message-id: 20200227025055.14341-5-pannengyuan@huawei.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
There are some memleaks when we call 'device_list_properties'. This patch move timer_new from init into realize to fix it.
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Pan Nengyuan <pannengyuan@huawei.com>
Message-id: 20200227025055.14341-4-pannengyuan@huawei.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
There are some memleaks when we call 'device_list_properties'. This patch move timer_new from init into realize to fix it.
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Pan Nengyuan <pannengyuan@huawei.com>
Message-id: 20200227025055.14341-3-pannengyuan@huawei.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We only build the little-endian softmmu configurations. Checking
for big endian is pointless, remove the unused code.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We only build the little-endian softmmu configurations. Checking
for big endian is pointless, remove the unused code.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We only build the little-endian softmmu configurations. Checking
for big endian is pointless, remove the unused code.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We only build the little-endian softmmu configurations. Checking
for big endian is pointless, remove the unused code.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
As the Connex and Verdex machines only boot in little-endian,
we can simplify the code.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The smmu_find_smmu_pcibus() function was introduced (in commit
cac994ef43) in a code format that could return an incorrect
pointer, which was then fixed by the previous commit.
We could have avoided this by writing the if() statement
differently. Do it now, in case this function is re-used.
The code is easier to review (harder to miss bugs).
Acked-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Make sure a null SMMUPciBus is returned in case we were
not able to identify a pci bus matching the @bus_num.
This matches the fix done on intel iommu in commit:
a2e1cd41cc
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-Id: <20200226172628.17449-1-eric.auger@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Generate xlnx-versal-virt zdma FDT nodes.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Reviewed-by: KONRAD Frederic <frederic.konrad@adacore.com>
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add support for the Versal LPD ADMAs.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Reviewed-by: KONRAD Frederic <frederic.konrad@adacore.com>
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Version: GnuPG v1
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Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging
# gpg: Signature made Tue 03 Mar 2020 10:06:06 GMT
# gpg: using RSA key EF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>" [marginal]
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 215D 46F4 8246 689E C77F 3562 EF04 965B 398D 6211
* remotes/jasowang/tags/net-pull-request: (23 commits)
l2tpv3: fix RFC number typo in qemu-options.hx
colo: Update Documentation for continuous replication
net/filter.c: Add Options to insert filters anywhere in the filter list
tests/test-replication.c: Add test for for secondary node continuing replication
block/replication.c: Ignore requests after failover
hw: net: cadence_gem: Fix build errors in DB_PRINT()
NetRxPkt: fix hash calculation of IPV6 TCP
NetRxPkt: Introduce support for additional hash types
e1000e: Avoid hw_error if legacy mode used
dp8393x: Don't stop reception upon RBE interrupt assertion
dp8393x: Don't reset Silicon Revision register
dp8393x: Always update RRA pointers and sequence numbers
dp8393x: Clear descriptor in_use field to release packet
dp8393x: Pad frames to word or long word boundary
dp8393x: Use long-word-aligned RRA pointers in 32-bit mode
dp8393x: Don't clobber packet checksum
dp8393x: Implement packet size limit and RBAE interrupt
dp8393x: Clear RRRA command register bit only when appropriate
dp8393x: Update LLFA and CRDA registers from rx descriptor
dp8393x: Have dp8393x_receive() return the packet size
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This pull request is almost entirely an implementation of the draft hypervisor
extension. This extension is still in draft and is expected to have
incompatible changes before being frozen, but we've had good luck managing
other RISC-V draft extensions in QEMU so far.
Additionally, there's a fix to PCI addressing and some improvements to the
M-mode timer.
This boots linux and passes make check for me.
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Merge remote-tracking branch 'remotes/palmer/tags/riscv-for-master-5.0-sf3' into staging
RISC-V Patches for the 5.0 Soft Freeze, Part 3
This pull request is almost entirely an implementation of the draft hypervisor
extension. This extension is still in draft and is expected to have
incompatible changes before being frozen, but we've had good luck managing
other RISC-V draft extensions in QEMU so far.
Additionally, there's a fix to PCI addressing and some improvements to the
M-mode timer.
This boots linux and passes make check for me.
# gpg: Signature made Tue 03 Mar 2020 00:23:20 GMT
# gpg: using RSA key 2B3C3747446843B24A943A7A2E1319F35FBB1889
# gpg: issuer "palmer@dabbelt.com"
# gpg: Good signature from "Palmer Dabbelt <palmer@dabbelt.com>" [unknown]
# gpg: aka "Palmer Dabbelt <palmer@sifive.com>" [unknown]
# gpg: aka "Palmer Dabbelt <palmerdabbelt@google.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 00CE 76D1 8349 60DF CE88 6DF8 EF4C A150 2CCB AB41
# Subkey fingerprint: 2B3C 3747 4468 43B2 4A94 3A7A 2E13 19F3 5FBB 1889
* remotes/palmer/tags/riscv-for-master-5.0-sf3: (38 commits)
hw/riscv: Provide rdtime callback for TCG in CLINT emulation
target/riscv: Emulate TIME CSRs for privileged mode
riscv: virt: Allow PCI address 0
target/riscv: Allow enabling the Hypervisor extension
target/riscv: Add the MSTATUS_MPV_ISSET helper macro
target/riscv: Add support for the 32-bit MSTATUSH CSR
target/riscv: Set htval and mtval2 on execptions
target/riscv: Raise the new execptions when 2nd stage translation fails
target/riscv: Implement second stage MMU
target/riscv: Allow specifying MMU stage
target/riscv: Respect MPRV and SPRV for floating point ops
target/riscv: Mark both sstatus and msstatus_hs as dirty
target/riscv: Disable guest FP support based on virtual status
target/riscv: Only set TB flags with FP status if enabled
target/riscv: Remove the hret instruction
target/riscv: Add hfence instructions
target/riscv: Add Hypervisor trap return support
target/riscv: Add hypvervisor trap support
target/riscv: Generate illegal instruction on WFI when V=1
target/ricsv: Flush the TLB on virtulisation mode changes
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
When CADENCE_GEM_ERR_DEBUG is turned on, there are several
compilation errors in DB_PRINT(). Fix them.
While we are here, update to use appropriate modifiers in
the same DB_PRINT() call.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
When requested to calculate the hash for TCPV6 packet,
ignore overrides of source and destination addresses
in in extension headers.
Use these overrides when new hash type NetPktRssIpV6TcpEx
requested.
Use this type in e1000e hash calculation for IPv6 TCP, which
should take in account overrides of the addresses.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Dmitry Fleytman <dmitry.fleytman@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Add support for following hash types:
IPV6 TCP with extension headers
IPV4 UDP
IPV6 UDP
IPV6 UDP with extension headers
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Acked-by: Dmitry Fleytman <dmitry.fleytman@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1787142
The emulation issues hw_error if PSRCTL register
is written, for example, with zero value.
Such configuration does not present any problem when
DTYP bits of RCTL register define legacy format of
transfer descriptors. Current commit discards check
for BSIZE0 and BSIZE1 when legacy mode used.
Acked-by: Dmitry Fleytman <dmitry.fleytman@gmail.com>
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Section 3.4.7 of the datasheet explains that,
The RBE bit in the Interrupt Status register is set when the
SONIC finishes using the second to last receive buffer and reads
the last RRA descriptor. Actually, the SONIC is not truly out of
resources, but gives the system an early warning of an impending
out of resources condition.
RBE does not mean actual receive buffer exhaustion, and reception should
not be stopped. This is important because Linux will not check and clear
the RBE interrupt until it receives another packet. But that won't
happen if can_receive returns false. This bug causes the SONIC to become
deaf (until reset).
Fix this with a new flag to indicate actual receive buffer exhaustion.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Jason Wang <jasowang@redhat.com>
The jazzsonic driver in Linux uses the Silicon Revision register value
to probe the chip. The driver fails unless the SR register contains 4.
Unfortunately, reading this register in QEMU usually returns 0 because
the s->regs[] array gets wiped after a software reset.
Fixes: bd8f1ebce4 ("net/dp8393x: fix hardware reset")
Suggested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Jason Wang <jasowang@redhat.com>
These operations need to take place regardless of whether or not
rx descriptors have been used up (that is, EOL flag was observed).
The algorithm is now the same for a packet that was withheld as for
a packet that was not.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Jason Wang <jasowang@redhat.com>
When the SONIC receives a packet into the last available descriptor, it
retains ownership of that descriptor for as long as necessary.
Section 3.4.7 of the datasheet says,
When the system appends more descriptors, the SONIC releases ownership
of the descriptor after writing 0000h to the RXpkt.in_use field.
The packet can now be processed by the host, so raise a PKTRX interrupt,
just like the normal case.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Jason Wang <jasowang@redhat.com>
The existing code has a bug where the Remaining Buffer Word Count (RBWC)
is calculated with a truncating division, which gives the wrong result
for odd-sized packets.
Section 1.4.1 of the datasheet says,
Once the end of the packet has been reached, the serializer will
fill out the last word (16-bit mode) or long word (32-bit mode)
if the last byte did not end on a word or long word boundary
respectively. The fill byte will be 0FFh.
Implement buffer padding so that buffer limits are correctly enforced.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Section 3.4.1 of the datasheet says,
The alignment of the RRA is confined to either word or long word
boundaries, depending upon the data width mode. In 16-bit mode,
the RRA must be aligned to a word boundary (A0 is always zero)
and in 32-bit mode, the RRA is aligned to a long word boundary
(A0 and A1 are always zero).
This constraint has been implemented for 16-bit mode; implement it
for 32-bit mode too.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
A received packet consumes pkt_size bytes in the buffer and the frame
checksum that's appended to it consumes another 4 bytes. The Receive
Buffer Address register takes the former quantity into account but
not the latter. So the next packet written to the buffer overwrites
the frame checksum. Fix this.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Add a bounds check to prevent a large packet from causing a buffer
overflow. This is defensive programming -- I haven't actually tried
sending an oversized packet or a jumbo ethernet frame.
The SONIC handles packets that are too big for the buffer by raising
the RBAE interrupt and dropping them. Linux uses that interrupt to
count dropped packets.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Jason Wang <jasowang@redhat.com>
It doesn't make sense to clear the command register bit unless the
command was actually issued.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Follow the algorithm given in the National Semiconductor DP83932C
datasheet in section 3.4.7:
At the next reception, the SONIC re-reads the last RXpkt.link field,
and updates its CRDA register to point to the next descriptor.
The chip is designed to allow the host to provide a new list of
descriptors in this way.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This function re-uses its 'size' argument as a scratch variable.
Instead, declare a local 'size' variable for that purpose so that the
function result doesn't get messed up.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Jason Wang <jasowang@redhat.com>
According to the datasheet, section 3.4.4, "in 32-bit mode ... the SONIC
always writes long words".
Therefore, use the same technique for the 'in_use' field that is used
everywhere else, and write the full long word.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
The DP83932 and DP83934 have 32 data lines. The datasheet says,
Data Bus: These bidirectional lines are used to transfer data on the
system bus. When the SONIC is a bus master, 16-bit data is transferred
on D15-D0 and 32-bit data is transferred on D31-D0. When the SONIC is
accessed as a slave, register data is driven onto lines D15-D0.
D31-D16 are held TRI-STATE if SONIC is in 16-bit mode. If SONIC is in
32-bit mode, they are driven, but invalid.
Always use 32-bit accesses both as bus master and bus slave.
Force the MSW to zero in bus master mode.
This gets the Linux 'jazzsonic' driver working, and avoids the need for
prior hacks to make the NetBSD 'sn' driver work.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Jason Wang <jasowang@redhat.com>
The Least Significant bit of a descriptor address register is used as
an EOL flag. It has to be masked when the register value is to be used
as an actual address for copying memory around. But when the registers
are to be updated the EOL bit should not be masked.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Map qxl rom read-only into the guest, so the guest can't tamper with the
content. qxl has a shadow copy of the rom to deal with that, but the
shadow doesn't cover the mode list. A privilidged user in the guest can
manipulate the mode list and that to trick qemu into oob reads, leading
to a DoS via segfault if that read access happens to hit unmapped memory.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200225055920.17261-2-kraxel@redhat.com
To calculate screen size in centimeters we should calculate:
pixels/dpi*2.54
but not
pixels*dpi/2540
Using wrong formula we actually get 65 DPI and very small fonts.
Signed-off-by: Anton V. Boyarshinov <boyarsh@altlinux.org>
Message-id: 20200226122054.366b9cda@table.localdomain
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
