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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>
This commit is contained in:
Paolo Bonzini 2011-08-13 15:44:45 +02:00 committed by Kevin Wolf
parent 3c2f7c12c2
commit afd4030c16
7 changed files with 39 additions and 32 deletions
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7
hw/esp.c
View File

@ -720,7 +720,10 @@ void esp_init(target_phys_addr_t espaddr, int it_shift,
*dma_enable = qdev_get_gpio_in(dev, 1);
}
static const struct SCSIBusOps esp_scsi_ops = {
static const struct SCSIBusInfo esp_scsi_info = {
.tcq = false,
.ndev = ESP_MAX_DEVS,
.transfer_data = esp_transfer_data,
.complete = esp_command_complete,
.cancel = esp_request_cancelled
@ -740,7 +743,7 @@ static int esp_init1(SysBusDevice *dev)
qdev_init_gpio_in(&dev->qdev, esp_gpio_demux, 2);
scsi_bus_new(&s->bus, &dev->qdev, 0, ESP_MAX_DEVS, &esp_scsi_ops);
scsi_bus_new(&s->bus, &dev->qdev, &esp_scsi_info);
return scsi_bus_legacy_handle_cmdline(&s->bus);
}

9
hw/lsi53c895a.c
View File

@ -1686,7 +1686,7 @@ static void lsi_reg_writeb(LSIState *s, int offset, uint8_t val)
DeviceState *dev;
int id;
for (id = 0; id < s->bus.ndev; id++) {
for (id = 0; id < LSI_MAX_DEVS; id++) {
if (s->bus.devs[id]) {
dev = &s->bus.devs[id]->qdev;
dev->info->reset(dev);
@ -2091,7 +2091,10 @@ static int lsi_scsi_uninit(PCIDevice *d)
return 0;
}
static const struct SCSIBusOps lsi_scsi_ops = {
static const struct SCSIBusInfo lsi_scsi_info = {
.tcq = true,
.ndev = LSI_MAX_DEVS,
.transfer_data = lsi_transfer_data,
.complete = lsi_command_complete,
.cancel = lsi_request_cancelled
@ -2118,7 +2121,7 @@ static int lsi_scsi_init(PCIDevice *dev)
pci_register_bar(&s->dev, 2, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->ram_io);
QTAILQ_INIT(&s->queue);
scsi_bus_new(&s->bus, &dev->qdev, 1, LSI_MAX_DEVS, &lsi_scsi_ops);
scsi_bus_new(&s->bus, &dev->qdev, &lsi_scsi_info);
if (!dev->qdev.hotplugged) {
return scsi_bus_legacy_handle_cmdline(&s->bus);
}

27
hw/scsi-bus.c
View File

@ -24,14 +24,11 @@ static struct BusInfo scsi_bus_info = {
static int next_scsi_bus;
/* Create a scsi bus, and attach devices to it. */
void scsi_bus_new(SCSIBus *bus, DeviceState *host, int tcq, int ndev,
const SCSIBusOps *ops)
void scsi_bus_new(SCSIBus *bus, DeviceState *host, const SCSIBusInfo *info)
{
qbus_create_inplace(&bus->qbus, &scsi_bus_info, host, NULL);
bus->busnr = next_scsi_bus++;
bus->tcq = tcq;
bus->ndev = ndev;
bus->ops = ops;
bus->info = info;
bus->qbus.allow_hotplug = 1;
}
@ -43,12 +40,12 @@ static int scsi_qdev_init(DeviceState *qdev, DeviceInfo *base)
int rc = -1;
if (dev->id == -1) {
for (dev->id = 0; dev->id < bus->ndev; dev->id++) {
for (dev->id = 0; dev->id < bus->info->ndev; dev->id++) {
if (bus->devs[dev->id] == NULL)
break;
}
}
if (dev->id >= bus->ndev) {
if (dev->id >= bus->info->ndev) {
error_report("bad scsi device id: %d", dev->id);
goto err;
}
@ -120,7 +117,7 @@ int scsi_bus_legacy_handle_cmdline(SCSIBus *bus)
int res = 0, unit;
loc_push_none(&loc);
for (unit = 0; unit < bus->ndev; unit++) {
for (unit = 0; unit < bus->info->ndev; unit++) {
dinfo = drive_get(IF_SCSI, bus->busnr, unit);
if (dinfo == NULL) {
continue;
@ -265,7 +262,7 @@ static bool scsi_target_emulate_inquiry(SCSITargetReq *r)
r->buf[2] = 5; /* Version */
r->buf[3] = 2 | 0x10; /* HiSup, response data format */
r->buf[4] = r->len - 5; /* Additional Length = (Len - 1) - 4 */
r->buf[7] = 0x10 | (r->req.bus->tcq ? 0x02 : 0); /* Sync, TCQ. */
r->buf[7] = 0x10 | (r->req.bus->info->tcq ? 0x02 : 0); /* Sync, TCQ. */
memcpy(&r->buf[8], "QEMU ", 8);
memcpy(&r->buf[16], "QEMU TARGET ", 16);
strncpy((char *) &r->buf[32], QEMU_VERSION, 4);
@ -1062,7 +1059,7 @@ void scsi_req_continue(SCSIRequest *req)
void scsi_req_data(SCSIRequest *req, int len)
{
trace_scsi_req_data(req->dev->id, req->lun, req->tag, len);
req->bus->ops->transfer_data(req, len);
req->bus->info->transfer_data(req, len);
}
void scsi_req_print(SCSIRequest *req)
@ -1121,7 +1118,7 @@ void scsi_req_complete(SCSIRequest *req, int status)
scsi_req_ref(req);
scsi_req_dequeue(req);
req->bus->ops->complete(req, req->status);
req->bus->info->complete(req, req->status);
scsi_req_unref(req);
}
@ -1132,8 +1129,8 @@ void scsi_req_cancel(SCSIRequest *req)
}
scsi_req_ref(req);
scsi_req_dequeue(req);
if (req->bus->ops->cancel) {
req->bus->ops->cancel(req);
if (req->bus->info->cancel) {
req->bus->info->cancel(req);
}
scsi_req_unref(req);
}
@ -1164,13 +1161,13 @@ static char *scsibus_get_fw_dev_path(DeviceState *dev)
char path[100];
int i;
for (i = 0; i < bus->ndev; i++) {
for (i = 0; i < bus->info->ndev; i++) {
if (bus->devs[i] == d) {
break;
}
}
assert(i != bus->ndev);
assert(i != bus->info->ndev);
snprintf(path, sizeof(path), "%s@%x", qdev_fw_name(dev), i);

2
hw/scsi-disk.c
View File

@ -564,7 +564,7 @@ static int scsi_disk_emulate_inquiry(SCSIRequest *req, uint8_t *outbuf)
}
/* Sync data transfer and TCQ. */
outbuf[7] = 0x10 | (req->bus->tcq ? 0x02 : 0);
outbuf[7] = 0x10 | (req->bus->info->tcq ? 0x02 : 0);
return buflen;
}

11
hw/scsi.h
View File

@ -9,7 +9,7 @@
#define SCSI_CMD_BUF_SIZE 16
typedef struct SCSIBus SCSIBus;
typedef struct SCSIBusOps SCSIBusOps;
typedef struct SCSIBusInfo SCSIBusInfo;
typedef struct SCSICommand SCSICommand;
typedef struct SCSIDevice SCSIDevice;
typedef struct SCSIDeviceInfo SCSIDeviceInfo;
@ -97,7 +97,8 @@ struct SCSIDeviceInfo {
SCSIReqOps reqops;
};
struct SCSIBusOps {
struct SCSIBusInfo {
int tcq, ndev;
void (*transfer_data)(SCSIRequest *req, uint32_t arg);
void (*complete)(SCSIRequest *req, uint32_t arg);
void (*cancel)(SCSIRequest *req);
@ -108,14 +109,12 @@ struct SCSIBus {
int busnr;
SCSISense unit_attention;
int tcq, ndev;
const SCSIBusOps *ops;
const SCSIBusInfo *info;
SCSIDevice *devs[MAX_SCSI_DEVS];
};
void scsi_bus_new(SCSIBus *bus, DeviceState *host, int tcq, int ndev,
const SCSIBusOps *ops);
void scsi_bus_new(SCSIBus *bus, DeviceState *host, const SCSIBusInfo *info);
void scsi_qdev_register(SCSIDeviceInfo *info);
static inline SCSIBus *scsi_bus_from_device(SCSIDevice *d)

8
hw/spapr_vscsi.c
View File

@ -862,7 +862,10 @@ static int vscsi_do_crq(struct VIOsPAPRDevice *dev, uint8_t *crq_data)
return 0;
}
static const struct SCSIBusOps vscsi_scsi_ops = {
static const struct SCSIBusInfo vscsi_scsi_info = {
.tcq = true,
.ndev = VSCSI_REQ_LIMIT,
.transfer_data = vscsi_transfer_data,
.complete = vscsi_command_complete,
.cancel = vscsi_request_cancelled
@ -883,8 +886,7 @@ static int spapr_vscsi_init(VIOsPAPRDevice *dev)
dev->crq.SendFunc = vscsi_do_crq;
scsi_bus_new(&s->bus, &dev->qdev, 1, VSCSI_REQ_LIMIT,
&vscsi_scsi_ops);
scsi_bus_new(&s->bus, &dev->qdev, &vscsi_scsi_info);
if (!dev->qdev.hotplugged) {
scsi_bus_legacy_handle_cmdline(&s->bus);
}

7
hw/usb-msd.c
View File

@ -495,7 +495,10 @@ static void usb_msd_password_cb(void *opaque, int err)
qdev_unplug(&s->dev.qdev);
}
static const struct SCSIBusOps usb_msd_scsi_ops = {
static const struct SCSIBusInfo usb_msd_scsi_info = {
.tcq = false,
.ndev = 1,
.transfer_data = usb_msd_transfer_data,
.complete = usb_msd_command_complete,
.cancel = usb_msd_request_cancelled
@ -536,7 +539,7 @@ static int usb_msd_initfn(USBDevice *dev)
}
usb_desc_init(dev);
scsi_bus_new(&s->bus, &s->dev.qdev, 0, 1, &usb_msd_scsi_ops);
scsi_bus_new(&s->bus, &s->dev.qdev, &usb_msd_scsi_info);
s->scsi_dev = scsi_bus_legacy_add_drive(&s->bus, bs, 0, !!s->removable);
if (!s->scsi_dev) {
return -1;