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2020-03-31hw/net: Make NetCanReceive() return a booleanPhilippe Mathieu-Daudé1-5/+3
The NetCanReceive handler return whether the device can or can not receive new packets. Make it obvious by returning a boolean type. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Jason Wang <jasowang@redhat.com>
2020-03-17hw/net: Use memory_region_init_rom() with read-only regionsPhilippe Mathieu-Daudé1-3/+2
This commit was produced with the Coccinelle script scripts/coccinelle/memory-region-housekeeping.cocci. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-03-09dp8393x: Mask EOL bit from descriptor addresses, take 2Finn Thain1-2/+2
A portion of a recent patch got lost due to a merge snafu. That patch is now commit 88f632fbb1 ("dp8393x: Mask EOL bit from descriptor addresses"). This patch restores the portion that got lost. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <alpine.LNX.2.22.394.2003041421280.12@nippy.intranet> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-03-03dp8393x: Don't stop reception upon RBE interrupt assertionFinn Thain1-13/+22
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>
2020-03-03dp8393x: Don't reset Silicon Revision registerFinn Thain1-1/+1
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>
2020-03-03dp8393x: Always update RRA pointers and sequence numbersFinn Thain1-5/+7
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>
2020-03-03dp8393x: Clear descriptor in_use field to release packetFinn Thain1-0/+10
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>
2020-03-03dp8393x: Pad frames to word or long word boundaryFinn Thain1-11/+28
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>
2020-03-03dp8393x: Use long-word-aligned RRA pointers in 32-bit modeFinn Thain1-2/+6
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>
2020-03-03dp8393x: Don't clobber packet checksumFinn Thain1-0/+1
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>
2020-03-03dp8393x: Implement packet size limit and RBAE interruptFinn Thain1-0/+9
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>
2020-03-03dp8393x: Clear RRRA command register bit only when appropriateFinn Thain1-4/+3
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>
2020-03-03dp8393x: Update LLFA and CRDA registers from rx descriptorFinn Thain1-4/+7
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>
2020-03-03dp8393x: Have dp8393x_receive() return the packet sizeFinn Thain1-4/+5
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>
2020-03-03dp8393x: Clean up endianness hacksFinn Thain1-11/+6
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>
2020-03-03dp8393x: Always use 32-bit accessesFinn Thain1-18/+29
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>
2020-03-02dp8393x: Mask EOL bit from descriptor addressesFinn Thain1-6/+11
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>
2020-02-20Avoid address_space_rw() with a constant is_write argumentPeter Maydell1-33/+37
The address_space_rw() function allows either reads or writes depending on the is_write argument passed to it; this is useful when the direction of the access is determined programmatically (as for instance when handling the KVM_EXIT_MMIO exit reason). Under the hood it just calls either address_space_write() or address_space_read_full(). We also use it a lot with a constant is_write argument, though, which has two issues: * when reading "address_space_rw(..., 1)" this is less immediately clear to the reader as being a write than "address_space_write(...)" * calling address_space_rw() bypasses the optimization in address_space_read() that fast-paths reads of a fixed length This commit was produced with the included Coccinelle script scripts/coccinelle/exec_rw_const.cocci. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Reviewed-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Message-Id: <20200218112457.22712-1-peter.maydell@linaro.org> [PMD: Update macvm_set_cr0() reported by Laurent Vivier] Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-02-20Let address_space_rw() calls pass a boolean 'is_write' argumentPhilippe Mathieu-Daudé1-13/+14
Since its introduction in commit ac1970fbe8, address_space_rw() takes a boolean 'is_write' argument. Fix the codebase by using an explicit boolean type. This commit was produced with the included Coccinelle script scripts/coccinelle/exec_rw_const. Inspired-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-02-20Remove unnecessary cast when using the address_space APIPhilippe Mathieu-Daudé1-14/+14
This commit was produced with the included Coccinelle script scripts/coccinelle/exec_rw_const. Two lines in hw/net/dp8393x.c that Coccinelle produced that were over 80 characters were re-wrapped by hand. Suggested-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-02-20hw/net: Avoid casting non-const pointer, use address_space_write()Philippe Mathieu-Daudé1-2/+1
The NetReceive prototype gets a const buffer: typedef ssize_t (NetReceive)(NetClientState *, const uint8_t *, size_t); We already have the address_space_write() method to write a const buffer to an address space. Use it to avoid: hw/net/i82596.c: In function ‘i82596_receive’: hw/net/i82596.c:644:54: error: passing argument 4 of ‘address_space_rw’ discards ‘const’ qualifier from pointer target type [-Werror=discarded-qualifiers] This commit was produced with the included Coccinelle script scripts/coccinelle/exec_rw_const. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-01-24qdev: set properties with device_class_set_props()Marc-André Lureau1-1/+1
The following patch will need to handle properties registration during class_init time. Let's use a device_class_set_props() setter. spatch --macro-file scripts/cocci-macro-file.h --sp-file ./scripts/coccinelle/qdev-set-props.cocci --keep-comments --in-place --dir . @@ typedef DeviceClass; DeviceClass *d; expression val; @@ - d->props = val + device_class_set_props(d, val) Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20200110153039.1379601-20-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-07dp8393x: replace PROP_PTR with PROP_LINKMarc-André Lureau1-4/+3
Link property is the correct way to pass a MemoryRegion to a device for DMA purposes. Sidenote: as a sysbus device, this remains non-usercreatable even though we can drop the specific flag here. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Tested-by: Laurent Vivier <laurent@vivier.eu>
2019-11-08dp8393x: fix dp8393x_receive()Laurent Vivier1-3/+9
RXpkt.in_use is always 16 bit wide, but when the bus access mode is 32bit and the endianness is big, we must access the second word and not the first. This patch adjusts the offset according to the size and endianness. This fixes DHCP for Q800 guest. Fixes: be9208419865 ("dp8393x: manage big endian bus") Signed-off-by: Laurent Vivier <laurent@vivier.eu> Tested-by: Hervé Poussineau <hpoussin@reactos.org> Message-Id: <20191106112341.23735-3-laurent@vivier.eu>
2019-11-08dp8393x: put the DMA buffer in the state structureLaurent Vivier1-55/+50
Move it from the stack. It's only 24 bytes, and this simplifies the dp8393x_get()/ dp8393x_put() interface. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Hervé Poussineau <hpoussin@reactos.org> Message-Id: <20191106112341.23735-2-laurent@vivier.eu>
2019-10-28dp8393x: manage big endian busLaurent Vivier1-31/+57
This is needed by Quadra 800, this card can run on little-endian or big-endian bus. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Tested-by: Hervé Poussineau <hpoussin@reactos.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Hervé Poussineau <hpoussin@reactos.org> Message-Id: <20191026164546.30020-5-laurent@vivier.eu>
2019-08-16Include hw/qdev-properties.h lessMarkus Armbruster1-0/+1
In my "build everything" tree, changing hw/qdev-properties.h triggers a recompile of some 2700 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h). Many places including hw/qdev-properties.h (directly or via hw/qdev.h) actually need only hw/qdev-core.h. Include hw/qdev-core.h there instead. hw/qdev.h is actually pointless: all it does is include hw/qdev-core.h and hw/qdev-properties.h, which in turn includes hw/qdev-core.h. Replace the remaining uses of hw/qdev.h by hw/qdev-properties.h. While there, delete a few superfluous inclusions of hw/qdev-core.h. Touching hw/qdev-properties.h now recompiles some 1200 objects. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: "Daniel P. Berrangé" <berrange@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Message-Id: <20190812052359.30071-22-armbru@redhat.com>
2019-08-16Include migration/vmstate.h lessMarkus Armbruster1-0/+1
In my "build everything" tree, changing migration/vmstate.h triggers a recompile of some 2700 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h). hw/hw.h supposedly includes it for convenience. Several other headers include it just to get VMStateDescription. The previous commit made that unnecessary. Include migration/vmstate.h only where it's still needed. Touching it now recompiles only some 1600 objects. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20190812052359.30071-16-armbru@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-08-16Include hw/irq.h a lot lessMarkus Armbruster1-0/+1
In my "build everything" tree, changing hw/irq.h triggers a recompile of some 5400 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h). hw/hw.h supposedly includes it for convenience. Several other headers include it just to get qemu_irq and.or qemu_irq_handler. Move the qemu_irq and qemu_irq_handler typedefs from hw/irq.h to qemu/typedefs.h, and then include hw/irq.h only where it's still needed. Touching it now recompiles only some 500 objects. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20190812052359.30071-13-armbru@redhat.com>
2019-06-12Include qemu/module.h where needed, drop it from qemu-common.hMarkus Armbruster1-0/+1
Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190523143508.25387-4-armbru@redhat.com> [Rebased with conflicts resolved automatically, except for hw/usb/dev-hub.c hw/misc/exynos4210_rng.c hw/misc/bcm2835_rng.c hw/misc/aspeed_scu.c hw/display/virtio-vga.c hw/arm/stm32f205_soc.c; ui/cocoa.m fixed up]
2019-03-07hw: Remove unused 'hw/devices.h' includePhilippe Mathieu-Daudé1-1/+0
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: BALATON Zoltan <balaton@eik.bme.hu> Tested-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-07-09hw/net/dp8393x: don't make prom region 'nomigrate'Peter Maydell1-1/+1
Currently we use memory_region_init_rom_nomigrate() to create the "dp3893x-prom" memory region, and we don't manually register it with vmstate_register_ram(). This currently means that its contents are migrated but as a ram block whose name is the empty string; in future it may mean they are not migrated at all. Use memory_region_init_ram() instead. Note that this is a a cross-version migration compatibility break for the MIPS "magnum" and "pica61" machines. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Aleksandar Markovic <aleksandar.markovic@wavecomp.com> Message-id: 20180706174309.27110-1-peter.maydell@linaro.org
2017-07-14memory: Rename memory_region_init_ram() to memory_region_init_ram_nomigrate()Peter Maydell1-1/+1
Rename memory_region_init_ram() to memory_region_init_ram_nomigrate(). This leaves the way clear for us to provide a memory_region_init_ram() which does handle migration. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-id: 1499438577-7674-4-git-send-email-peter.maydell@linaro.org
2017-05-17qdev: Replace cannot_instantiate_with_device_add_yet with !user_creatableEduardo Habkost1-1/+1
cannot_instantiate_with_device_add_yet was introduced by commit efec3dd631d94160288392721a5f9c39e50fb2bc to replace no_user. It was supposed to be a temporary measure. When it was introduced, we had 54 cannot_instantiate_with_device_add_yet=true lines in the code. Today (3 years later) this number has not shrunk: we now have 57 cannot_instantiate_with_device_add_yet=true lines. I think it is safe to say it is not a temporary measure, and we won't see the flag go away soon. Instead of a long field name that misleads people to believe it is temporary, replace it a shorter and less misleading field: user_creatable. Except for code comments, changes were generated using the following Coccinelle patch: @@ expression DC; @@ ( -DC->cannot_instantiate_with_device_add_yet = false; +DC->user_creatable = true; | -DC->cannot_instantiate_with_device_add_yet = true; +DC->user_creatable = false; ) @@ typedef ObjectClass; expression dc; identifier class, data; @@ static void device_class_init(ObjectClass *class, void *data) { ... dc->hotpluggable = true; +dc->user_creatable = true; ... } @@ @@ struct DeviceClass { ... -bool cannot_instantiate_with_device_add_yet; +bool user_creatable; ... } @@ expression DC; @@ ( -!DC->cannot_instantiate_with_device_add_yet +DC->user_creatable | -DC->cannot_instantiate_with_device_add_yet +!DC->user_creatable ) Cc: Alistair Francis <alistair.francis@xilinx.com> Cc: Laszlo Ersek <lersek@redhat.com> Cc: Marcel Apfelbaum <marcel@redhat.com> Cc: Markus Armbruster <armbru@redhat.com> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: Thomas Huth <thuth@redhat.com> Acked-by: Alistair Francis <alistair.francis@xilinx.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Acked-by: Marcel Apfelbaum <marcel@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Message-Id: <20170503203604.31462-2-ehabkost@redhat.com> [ehabkost: kept "TODO remove once we're there" comment] Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-01-20hw/net/dp8393x: Avoid unintentional sign extensions on addressesPeter Maydell1-27/+68
The dp8393x has several 32-bit values which are formed by concatenating two 16 bit device register values. Attempting to do these inline with ((s->reg[HI] << 16) | s->reg[LO]) can result in an unintended sign extension because "x << 16" is of type 'int' even though s->reg is unsigned, and so if the expression is used in a context where it is cast to uint64_t the value is incorrectly sign-extended. Fix this by using accessor functions with a uint32_t return type; this also makes the code a bit easier to read. This should fix Coverity issues 1307765, 1307766, 1307767, 1307768. (To avoid having a ctda read function only used in a DPRINTF, we move the DPRINTF down slightly so it can use the ttda function.) Reviewed-by: Laurent Vivier <laurent@vivier.eu> Tested-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Hervé Poussineau <hpoussin@reactos.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-07-19qapi: Change Netdev into a flat unionEric Blake1-1/+1
This is a mostly-mechanical conversion that creates a new flat union 'Netdev' QAPI type that covers all the branches of the former 'NetClientOptions' simple union, where the branches are now listed in a new 'NetClientDriver' enum rather than generated from the simple union. The existence of a flat union has no change to the command line syntax accepted for new code, and will make it possible for a future patch to switch the QMP command to parse a boxed union for no change to valid QMP; but it does have some ripple effect on the C code when dealing with the new types. While making the conversion, note that the 'NetLegacy' type remains unchanged: it applies only to legacy command line options, and will not be ported to QMP, so it should remain a wrapper around a simple union; to avoid confusion, the type named 'NetClientOptions' is now gone, and we introduce 'NetLegacyOptions' in its place. Then, in the C code, we convert from NetLegacy to Netdev as soon as possible, so that the bulk of the net stack only has to deal with one QAPI type, not two. Note that since the old legacy code always rejected 'hubport', we can just omit that branch from the new 'NetLegacyOptions' simple union. Based on an idea originally by Zoltán Kővágó <DirtY.iCE.hu@gmail.com>: Message-Id: <01a527fbf1a5de880091f98cf011616a78adeeee.1441627176.git.DirtY.iCE.hu@gmail.com> although the sed script in that patch no longer applies due to other changes in the tree since then, and I also did some manual cleanups (such as fixing whitespace to keep checkpatch happy). Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <1468468228-27827-13-git-send-email-eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> [Fixup from Eric squashed in] Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-03-22Replaced get_tick_per_sec() by NANOSECONDS_PER_SECONDRutuja Shah1-1/+1
This patch replaces get_ticks_per_sec() calls with the macro NANOSECONDS_PER_SECOND. Also, as there are no callers, get_ticks_per_sec() is then removed. This replacement improves the readability and understandability of code. For example, timer_mod(fdctrl->result_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + (get_ticks_per_sec() / 50)); NANOSECONDS_PER_SECOND makes it obvious that qemu_clock_get_ns matches the unit of the expression on the right side of the plus. Signed-off-by: Rutuja Shah <rutu.shah.26@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-22include/qemu/osdep.h: Don't include qapi/error.hMarkus Armbruster1-0/+1
Commit 57cb38b included qapi/error.h into qemu/osdep.h to get the Error typedef. Since then, we've moved to include qemu/osdep.h everywhere. Its file comment explains: "To avoid getting into possible circular include dependencies, this file should not include any other QEMU headers, with the exceptions of config-host.h, compiler.h, os-posix.h and os-win32.h, all of which are doing a similar job to this file and are under similar constraints." qapi/error.h doesn't do a similar job, and it doesn't adhere to similar constraints: it includes qapi-types.h. That's in excess of 100KiB of crap most .c files don't actually need. Add the typedef to qemu/typedefs.h, and include that instead of qapi/error.h. Include qapi/error.h in .c files that need it and don't get it now. Include qapi-types.h in qom/object.h for uint16List. Update scripts/clean-includes accordingly. Update it further to match reality: replace config.h by config-target.h, add sysemu/os-posix.h, sysemu/os-win32.h. Update the list of includes in the qemu/osdep.h comment quoted above similarly. This reduces the number of objects depending on qapi/error.h from "all of them" to less than a third. Unfortunately, the number depending on qapi-types.h shrinks only a little. More work is needed for that one. Signed-off-by: Markus Armbruster <armbru@redhat.com> [Fix compilation without the spice devel packages. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-01-29hw/net: Clean up includesPeter Maydell1-0/+1
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1453832250-766-19-git-send-email-peter.maydell@linaro.org
2015-07-28net/dp8393x: do not use memory_region_init_rom_device with NULLHervé Poussineau1-2/+8
Replace memory_region_init_rom_device() with memory_region_init_ram() and memory_region_set_readonly(). This fixes a guest-triggerable QEMU crash when guest tries to write to PROM. Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> [leon.alrae@imgtec.com: shorten subject length] Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-07-28net/dp8393x: remove check of runt packetsHervé Poussineau1-5/+0
Ethernet requires that messages are at least 64 bytes on the wire. This limitation does not exist on emulation (no wire message), so remove the check. Netcard is now able to receive small network packets. Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-07-28net/dp8393x: disable user creationHervé Poussineau1-0/+2
Netcard needs an address space to write data to, which can't be specified on command line. This fixes a crash when user starts QEMU with "-device dp8393x" Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-07-27dp8393x: Flush packets when link comes upFam Zheng1-0/+8
.can_receive callback changes semantics that once return 0, backend will try sending again until explicitly flushed, change the device to meet that. dp8393x_can_receive checks SONIC_CR_RXEN bit in SONIC_CR register and SONIC_ISR_RBE bit in SONIC_ISR register, try flushing the queue when either bit is being updated. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Jason Wang <jasowang@redhat.com> Message-id: 1436955553-22791-12-git-send-email-famz@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-06-11net/dp8393x: fix hardware resetHervé Poussineau1-0/+1
Documentation is not clear of what happens when doing a hardware reset, but firmware expect all registers to be zero unless specified otherwise. This fixes reboot on MIPS Magnum. Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-06-11net/dp8393x: correctly reset in_use fieldHervé Poussineau1-1/+1
Don't write more than the field width, which is always 16 bit. Fixes network in NetBSD 5.1/arc Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-06-11net/dp8393x: add load/save supportHervé Poussineau1-0/+12
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-06-11net/dp8393x: add PROM to store MAC addressHervé Poussineau1-0/+18
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-06-11net/dp8393x: QOM'ifyHervé Poussineau1-26/+57
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-06-11net/dp8393x: use dp8393x_ prefix for all functionsHervé Poussineau1-39/+41
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-06-11net/dp8393x: do not use old_mmio accessesHervé Poussineau1-85/+29
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
generated by cgit v1.1 at 2024-12-28 01:36:53 +0000