esp: split esp code into generic chip emulation and sysbus layer

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

esp: use hba_private field instead of a complex cast

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

esp: support future change of chip_id

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

esp: implement Reset ATN command

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

esp: implement Disable selection command

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

esp: delay Transfer Information command if dma is not enabled

The same mechanism is already in place for some select commands.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by:

esp: delay Transfer Information command if dma is not enabled

The same mechanism is already in place for some select commands.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

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esp: execute select commands immediately when it is a non-dma command

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

scsi: pass residual amount to command_complete

With the upcoming sglist support, HBAs will not see any transfer_data
call and will not have a way to detect short transfers. So pass the
residual amo

scsi: pass residual amount to command_complete

With the upcoming sglist support, HBAs will not see any transfer_data
call and will not have a way to detect short transfers. So pass the
residual amount of data upon command completion.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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qom: Unify type registration

Replace device_init() with generalized type_init().

While at it, unify naming convention: type_init([$prefix_]register_types)
Also, type_init() is a function, so add pr

qom: Unify type registration

Replace device_init() with generalized type_init().

While at it, unify naming convention: type_init([$prefix_]register_types)
Also, type_init() is a function, so add preceding blank line where
necessary and don't put a semicolon after the closing brace.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Cc: Anthony Liguori <anthony@codemonkey.ws>
Cc: malc <av1474@comtv.ru>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

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qdev: register all types natively through QEMU Object Model

This was done in a mostly automated fashion. I did it in three steps and then
rebased it into a single step which avoids repeatedly touch

qdev: register all types natively through QEMU Object Model

This was done in a mostly automated fashion. I did it in three steps and then
rebased it into a single step which avoids repeatedly touching every file in
the tree.

The first step was a sed-based addition of the parent type to the subclass
registration functions.

The second step was another sed-based removal of subclass registration functions
while also adding virtual functions from the base class into a class_init
function as appropriate.

Finally, a python script was used to convert the DeviceInfo structures and
qdev_register_subclass functions to TypeInfo structures, class_init functions,
and type_register_static calls.

We are almost fully converted to QOM after this commit.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

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sysbus: apic: ioapic: convert to QEMU Object Model

This converts three devices because apic and ioapic are subclasses of sysbus.
Converting subclasses independently of their base class is prohibitiv

sysbus: apic: ioapic: convert to QEMU Object Model

This converts three devices because apic and ioapic are subclasses of sysbus.
Converting subclasses independently of their base class is prohibitively hard.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

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sysbus: rename sysbus_init_mmio_region() to sysbus_init_mmio()

Signed-off-by: Avi Kivity <avi@redhat.com>

esp: convert to memory API

[benoit: fix]

Signed-off-by: Benoit Canet <benoit.canet@gmail.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

scsi: add channel to addressing

This also requires little more than adding the new argument to
scsi_device_find, and the qdev property. All devices by default
end up on channel 0.

Signed-off-by: P

scsi: add channel to addressing

This also requires little more than adding the new argument to
scsi_device_find, and the qdev property. All devices by default
end up on channel 0.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

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scsi: allow arbitrary LUNs

This only requires changes in two places: in SCSIBus, we need to look
for a free LUN if somebody creates a device with a pre-existing scsi-id
but the default LUN (-1, mean

scsi: allow arbitrary LUNs

This only requires changes in two places: in SCSIBus, we need to look
for a free LUN if somebody creates a device with a pre-existing scsi-id
but the default LUN (-1, meaning "search for a free spot"); in vSCSI,
we need to actually parse the LUN according to the SCSI spec.

For vSCSI, max_target/max_lun are set according to the logical unit
addressing format in SAM.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

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scsi: remove devs array from SCSIBus

Change the devs array into a linked list, and add a scsi_device_find
function to navigate the children list instead. This lets the SCSI
bus use more complex add

scsi: remove devs array from SCSIBus

Change the devs array into a linked list, and add a scsi_device_find
function to navigate the children list instead. This lets the SCSI
bus use more complex addressing, and HBAs can talk to the correct device
when there are multiple LUNs per target.

scsi_device_find may return another LUN on the same target if none is
found that matches exactly.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

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scsi: move tcq/ndev to SCSIBusOps (now SCSIBusInfo)

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

ESP: convert to trace framework

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

esp: avoid structure holes spotted by pahole

Report from pahole on amd64 host:
struct ESPState {
SysBusDevice busdev; /* 0 5648 */
/* --- cacheline 88 boundary (56

esp: avoid structure holes spotted by pahole

Report from pahole on amd64 host:
struct ESPState {
SysBusDevice busdev; /* 0 5648 */
/* --- cacheline 88 boundary (5632 bytes) was 16 bytes ago --- */
uint32_t it_shift; /* 5648 4 */

/* XXX 4 bytes hole, try to pack */

qemu_irq irq; /* 5656 8 */
uint8_t rregs[16]; /* 5664 16 */
uint8_t wregs[16]; /* 5680 16 */
/* --- cacheline 89 boundary (5696 bytes) --- */
int32_t ti_size; /* 5696 4 */
uint32_t ti_rptr; /* 5700 4 */
uint32_t ti_wptr; /* 5704 4 */
uint8_t ti_buf[16]; /* 5708 16 */
uint32_t status; /* 5724 4 */
uint32_t dma; /* 5728 4 */

/* XXX 4 bytes hole, try to pack */

SCSIBus bus; /* 5736 2120 */
/* --- cacheline 122 boundary (7808 bytes) was 48 bytes ago --- */
SCSIDevice * current_dev; /* 7856 8 */
SCSIRequest * current_req; /* 7864 8 */
/* --- cacheline 123 boundary (7872 bytes) --- */
uint8_t cmdbuf[16]; /* 7872 16 */
uint32_t cmdlen; /* 7888 4 */
uint32_t do_cmd; /* 7892 4 */
uint32_t dma_left; /* 7896 4 */
uint32_t dma_counter; /* 7900 4 */
uint8_t * async_buf; /* 7904 8 */
uint32_t async_len; /* 7912 4 */

/* XXX 4 bytes hole, try to pack */

ESPDMAMemoryReadWriteFunc dma_memory_read; /* 7920 8 */
ESPDMAMemoryReadWriteFunc dma_memory_write; /* 7928 8 */
/* --- cacheline 124 boundary (7936 bytes) --- */
void * dma_opaque; /* 7936 8 */
int dma_enabled; /* 7944 4 */

/* XXX 4 bytes hole, try to pack */

void (*dma_cb)(ESPState *); /* 7952 8 */

/* size: 7960, cachelines: 125 */
/* sum members: 7944, holes: 4, sum holes: 16 */
/* last cacheline: 24 bytes */
}; /* definitions: 1 */

Fix by rearranging the structure to avoid padding.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

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scsi: pass cdb already to scsi_req_new

Right now the CDB is not passed to the SCSIBus until scsi_req_enqueue.
Passing it to scsi_req_new will let scsi_req_new dispatch common requests
through differ

scsi: pass cdb already to scsi_req_new

Right now the CDB is not passed to the SCSIBus until scsi_req_enqueue.
Passing it to scsi_req_new will let scsi_req_new dispatch common requests
through different reqops.

Moving the memcpy to scsi_req_new is a hack that will go away as
soon as scsi_req_new will also take care of the parsing.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

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scsi: Add 'hba_private' to SCSIRequest

'tag' is just an abstraction to identify the command
from the driver. So we should make that explicit by
replacing 'tag' with a driver-defined pointer 'hba_pri

scsi: Add 'hba_private' to SCSIRequest

'tag' is just an abstraction to identify the command
from the driver. So we should make that explicit by
replacing 'tag' with a driver-defined pointer 'hba_private'.
This saves the lookup for driver handling several commands
in parallel.
'tag' is still being kept for tracing purposes.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

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esp: cancel current request only if some request is in flight

This bug was introduced in 94d3f98a3f3caddd7875f9a11776daeb84962a7b:
scsi_cancel_io was checking if some request was pending before tryi

esp: cancel current request only if some request is in flight

This bug was introduced in 94d3f98a3f3caddd7875f9a11776daeb84962a7b:
scsi_cancel_io was checking if some request was pending before trying
to cancel it, while scsi_req_cancel always cancels the request.

This may lead to a crash of Qemu due to dereferencing a NULL pointer,
as exhibited by NetBSD 5.1 installer on MIPS Magnum emulation.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

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esp: correctly fill bus id with requested lun

This bug showed up after 1455084ea2c48abf23c4e4e15e378ee43457f381, and
may be seen only on operating systems *not* using DMA to give commands
to SCSI ad

esp: correctly fill bus id with requested lun

This bug showed up after 1455084ea2c48abf23c4e4e15e378ee43457f381, and
may be seen only on operating systems *not* using DMA to give commands
to SCSI adapter.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

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scsi: rename arguments to the new callbacks

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>

scsi: split command_complete callback in two

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>