* - Add indirect descriptors support
* - Maybe do autosense (PAPR seems to mandate it, linux doesn't care)
*/
+
#include "qemu/osdep.h"
-#include "qemu-common.h"
-#include "cpu.h"
-#include "hw/hw.h"
+#include "qemu/module.h"
#include "hw/scsi/scsi.h"
+#include "migration/vmstate.h"
#include "scsi/constants.h"
#include "srp.h"
-#include "hw/qdev.h"
#include "hw/ppc/spapr.h"
#include "hw/ppc/spapr_vio.h"
+#include "hw/qdev-properties.h"
#include "viosrp.h"
#include "trace.h"
#include <libfdt.h>
+#include "qom/object.h"
/*
* Virtual SCSI device
#define VSCSI_MAX_SECTORS 4096
#define VSCSI_REQ_LIMIT 24
+/* Maximum size of a IU payload */
+#define SRP_MAX_IU_DATA_LEN (SRP_MAX_IU_LEN - sizeof(union srp_iu))
#define SRP_RSP_SENSE_DATA_LEN 18
#define SRP_REPORT_LUNS_WLUN 0xc10100000000000ULL
typedef struct vscsi_req {
vscsi_crq crq;
- union viosrp_iu iu;
+ uint8_t viosrp_iu_buf[SRP_MAX_IU_LEN];
/* SCSI request tracking */
SCSIRequest *sreq;
} vscsi_req;
#define TYPE_VIO_SPAPR_VSCSI_DEVICE "spapr-vscsi"
-#define VIO_SPAPR_VSCSI_DEVICE(obj) \
- OBJECT_CHECK(VSCSIState, (obj), TYPE_VIO_SPAPR_VSCSI_DEVICE)
+OBJECT_DECLARE_SIMPLE_TYPE(VSCSIState, VIO_SPAPR_VSCSI_DEVICE)
-typedef struct {
- VIOsPAPRDevice vdev;
+struct VSCSIState {
+ SpaprVioDevice vdev;
SCSIBus bus;
vscsi_req reqs[VSCSI_REQ_LIMIT];
-} VSCSIState;
+};
+
+static union viosrp_iu *req_iu(vscsi_req *req)
+{
+ return (union viosrp_iu *)req->viosrp_iu_buf;
+}
static struct vscsi_req *vscsi_get_req(VSCSIState *s)
{
for (i = 0; i < VSCSI_REQ_LIMIT; i++) {
req = &s->reqs[i];
- if (req->iu.srp.cmd.tag == srp_tag) {
+ if (req_iu(req)->srp.cmd.tag == srp_tag) {
return req;
}
}
{
long rc, rc1;
+ assert(length <= SRP_MAX_IU_LEN);
+
/* First copy the SRP */
rc = spapr_vio_dma_write(&s->vdev, req->crq.s.IU_data_ptr,
- &req->iu, length);
+ &req->viosrp_iu_buf, length);
if (rc) {
fprintf(stderr, "vscsi_send_iu: DMA write failure !\n");
}
req->crq.s.reserved = 0x00;
req->crq.s.timeout = cpu_to_be16(0x0000);
req->crq.s.IU_length = cpu_to_be16(length);
- req->crq.s.IU_data_ptr = req->iu.srp.rsp.tag; /* right byte order */
+ req->crq.s.IU_data_ptr = req_iu(req)->srp.rsp.tag; /* right byte order */
if (rc == 0) {
req->crq.s.status = VIOSRP_OK;
static int vscsi_send_rsp(VSCSIState *s, vscsi_req *req,
uint8_t status, int32_t res_in, int32_t res_out)
{
- union viosrp_iu *iu = &req->iu;
+ union viosrp_iu *iu = req_iu(req);
uint64_t tag = iu->srp.rsp.tag;
int total_len = sizeof(iu->srp.rsp);
uint8_t sol_not = iu->srp.cmd.sol_not;
if (status) {
iu->srp.rsp.sol_not = (sol_not & 0x04) >> 2;
if (req->senselen) {
- req->iu.srp.rsp.flags |= SRP_RSP_FLAG_SNSVALID;
- req->iu.srp.rsp.sense_data_len = cpu_to_be32(req->senselen);
- memcpy(req->iu.srp.rsp.data, req->sense, req->senselen);
- total_len += req->senselen;
+ int sense_data_len = MIN(req->senselen, SRP_MAX_IU_DATA_LEN);
+
+ iu->srp.rsp.flags |= SRP_RSP_FLAG_SNSVALID;
+ iu->srp.rsp.sense_data_len = cpu_to_be32(sense_data_len);
+ memcpy(iu->srp.rsp.data, req->sense, sense_data_len);
+ total_len += sense_data_len;
}
} else {
iu->srp.rsp.sol_not = (sol_not & 0x02) >> 1;
unsigned n, unsigned buf_offset,
struct srp_direct_buf *ret)
{
- struct srp_cmd *cmd = &req->iu.srp.cmd;
+ struct srp_cmd *cmd = &req_iu(req)->srp.cmd;
switch (req->dma_fmt) {
case SRP_NO_DATA_DESC: {
static int vscsi_preprocess_desc(vscsi_req *req)
{
- struct srp_cmd *cmd = &req->iu.srp.cmd;
+ struct srp_cmd *cmd = &req_iu(req)->srp.cmd;
req->cdb_offset = cmd->add_cdb_len & ~3;
}
/* Callback to indicate that the SCSI layer has completed a transfer. */
-static void vscsi_command_complete(SCSIRequest *sreq, uint32_t status, size_t resid)
+static void vscsi_command_complete(SCSIRequest *sreq, size_t resid)
{
VSCSIState *s = VIO_SPAPR_VSCSI_DEVICE(sreq->bus->qbus.parent);
vscsi_req *req = sreq->hba_private;
int32_t res_in = 0, res_out = 0;
- trace_spapr_vscsi_command_complete(sreq->tag, status, req);
+ trace_spapr_vscsi_command_complete(sreq->tag, sreq->status, req);
if (req == NULL) {
fprintf(stderr, "VSCSI: Can't find request for tag 0x%x\n", sreq->tag);
return;
}
- if (status == CHECK_CONDITION) {
+ if (sreq->status == CHECK_CONDITION) {
req->senselen = scsi_req_get_sense(req->sreq, req->sense,
sizeof(req->sense));
trace_spapr_vscsi_command_complete_sense_data1(req->senselen,
req->sense[12], req->sense[13], req->sense[14], req->sense[15]);
}
- trace_spapr_vscsi_command_complete_status(status);
- if (status == 0) {
+ trace_spapr_vscsi_command_complete_status(sreq->status);
+ if (sreq->status == 0) {
/* We handle overflows, not underflows for normal commands,
* but hopefully nobody cares
*/
res_in = req->data_len;
}
}
- vscsi_send_rsp(s, req, status, res_in, res_out);
+ vscsi_send_rsp(s, req, sreq->status, res_in, res_out);
vscsi_put_req(req);
}
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_BUFFER(crq.raw, vscsi_req),
- VMSTATE_BUFFER(iu.srp.reserved, vscsi_req),
+ VMSTATE_BUFFER(viosrp_iu_buf, vscsi_req),
VMSTATE_UINT32(qtag, vscsi_req),
VMSTATE_BOOL(active, vscsi_req),
VMSTATE_UINT32(data_len, vscsi_req),
static void vscsi_process_login(VSCSIState *s, vscsi_req *req)
{
- union viosrp_iu *iu = &req->iu;
+ union viosrp_iu *iu = req_iu(req);
struct srp_login_rsp *rsp = &iu->srp.login_rsp;
uint64_t tag = iu->srp.rsp.tag;
*/
rsp->req_lim_delta = cpu_to_be32(VSCSI_REQ_LIMIT-2);
rsp->tag = tag;
- rsp->max_it_iu_len = cpu_to_be32(sizeof(union srp_iu));
- rsp->max_ti_iu_len = cpu_to_be32(sizeof(union srp_iu));
+ rsp->max_it_iu_len = cpu_to_be32(SRP_MAX_IU_LEN);
+ rsp->max_ti_iu_len = cpu_to_be32(SRP_MAX_IU_LEN);
/* direct and indirect */
rsp->buf_fmt = cpu_to_be16(SRP_BUF_FORMAT_DIRECT | SRP_BUF_FORMAT_INDIRECT);
static void vscsi_inquiry_no_target(VSCSIState *s, vscsi_req *req)
{
- uint8_t *cdb = req->iu.srp.cmd.cdb;
+ uint8_t *cdb = req_iu(req)->srp.cmd.cdb;
uint8_t resp_data[36];
int rc, len, alen;
static int vscsi_queue_cmd(VSCSIState *s, vscsi_req *req)
{
- union srp_iu *srp = &req->iu.srp;
+ union srp_iu *srp = &req_iu(req)->srp;
SCSIDevice *sdev;
int n, lun;
static int vscsi_process_tsk_mgmt(VSCSIState *s, vscsi_req *req)
{
- union viosrp_iu *iu = &req->iu;
+ union viosrp_iu *iu = req_iu(req);
vscsi_req *tmpreq;
int i, lun = 0, resp = SRP_TSK_MGMT_COMPLETE;
SCSIDevice *d;
uint64_t tag = iu->srp.rsp.tag;
uint8_t sol_not = iu->srp.cmd.sol_not;
- fprintf(stderr, "vscsi_process_tsk_mgmt %02x\n",
- iu->srp.tsk_mgmt.tsk_mgmt_func);
-
- d = vscsi_device_find(&s->bus, be64_to_cpu(req->iu.srp.tsk_mgmt.lun), &lun);
+ trace_spapr_vscsi_process_tsk_mgmt(iu->srp.tsk_mgmt.tsk_mgmt_func);
+ d = vscsi_device_find(&s->bus,
+ be64_to_cpu(req_iu(req)->srp.tsk_mgmt.lun), &lun);
if (!d) {
resp = SRP_TSK_MGMT_FIELDS_INVALID;
} else {
break;
}
- tmpreq = vscsi_find_req(s, req->iu.srp.tsk_mgmt.task_tag);
+ tmpreq = vscsi_find_req(s, req_iu(req)->srp.tsk_mgmt.task_tag);
if (tmpreq && tmpreq->sreq) {
assert(tmpreq->sreq->hba_private);
scsi_req_cancel(tmpreq->sreq);
for (i = 0; i < VSCSI_REQ_LIMIT; i++) {
tmpreq = &s->reqs[i];
- if (tmpreq->iu.srp.cmd.lun != req->iu.srp.tsk_mgmt.lun) {
+ if (req_iu(tmpreq)->srp.cmd.lun
+ != req_iu(req)->srp.tsk_mgmt.lun) {
continue;
}
if (!tmpreq->active || !tmpreq->sreq) {
}
/* Compose the response here as */
+ QEMU_BUILD_BUG_ON(SRP_MAX_IU_DATA_LEN < 4);
memset(iu, 0, sizeof(struct srp_rsp) + 4);
iu->srp.rsp.opcode = SRP_RSP;
iu->srp.rsp.req_lim_delta = cpu_to_be32(1);
static int vscsi_handle_srp_req(VSCSIState *s, vscsi_req *req)
{
- union srp_iu *srp = &req->iu.srp;
+ union srp_iu *srp = &req_iu(req)->srp;
int done = 1;
uint8_t opcode = srp->rsp.opcode;
struct mad_adapter_info_data info;
int rc;
- sinfo = &req->iu.mad.adapter_info;
+ sinfo = &req_iu(req)->mad.adapter_info;
#if 0 /* What for ? */
rc = spapr_vio_dma_read(&s->vdev, be64_to_cpu(sinfo->buffer),
uint64_t buffer;
int rc;
- vcap = &req->iu.mad.capabilities;
+ vcap = &req_iu(req)->mad.capabilities;
req_len = len = be16_to_cpu(vcap->common.length);
buffer = be64_to_cpu(vcap->buffer);
if (len > sizeof(cap)) {
static int vscsi_handle_mad_req(VSCSIState *s, vscsi_req *req)
{
- union mad_iu *mad = &req->iu.mad;
+ union mad_iu *mad = &req_iu(req)->mad;
bool request_handled = false;
uint64_t retlen = 0;
* in our 256 bytes IUs. If not we'll have to increase the size
* of the structure.
*/
- if (crq->s.IU_length > sizeof(union viosrp_iu)) {
+ if (crq->s.IU_length > SRP_MAX_IU_LEN) {
fprintf(stderr, "VSCSI: SRP IU too long (%d bytes) !\n",
crq->s.IU_length);
vscsi_put_req(req);
}
/* XXX Handle failure differently ? */
- if (spapr_vio_dma_read(&s->vdev, crq->s.IU_data_ptr, &req->iu,
+ if (spapr_vio_dma_read(&s->vdev, crq->s.IU_data_ptr, &req->viosrp_iu_buf,
crq->s.IU_length)) {
fprintf(stderr, "vscsi_got_payload: DMA read failure !\n");
vscsi_put_req(req);
}
-static int vscsi_do_crq(struct VIOsPAPRDevice *dev, uint8_t *crq_data)
+static int vscsi_do_crq(struct SpaprVioDevice *dev, uint8_t *crq_data)
{
VSCSIState *s = VIO_SPAPR_VSCSI_DEVICE(dev);
vscsi_crq crq;
.load_request = vscsi_load_request,
};
-static void spapr_vscsi_reset(VIOsPAPRDevice *dev)
+static void spapr_vscsi_reset(SpaprVioDevice *dev)
{
VSCSIState *s = VIO_SPAPR_VSCSI_DEVICE(dev);
int i;
}
}
-static void spapr_vscsi_realize(VIOsPAPRDevice *dev, Error **errp)
+static void spapr_vscsi_realize(SpaprVioDevice *dev, Error **errp)
{
VSCSIState *s = VIO_SPAPR_VSCSI_DEVICE(dev);
scsi_bus_new(&s->bus, sizeof(s->bus), DEVICE(dev),
&vscsi_scsi_info, NULL);
+
+ /* ibmvscsi SCSI bus does not allow hotplug. */
+ qbus_set_hotplug_handler(BUS(&s->bus), NULL);
}
-void spapr_vscsi_create(VIOsPAPRBus *bus)
+void spapr_vscsi_create(SpaprVioBus *bus)
{
DeviceState *dev;
- dev = qdev_create(&bus->bus, "spapr-vscsi");
+ dev = qdev_new("spapr-vscsi");
- qdev_init_nofail(dev);
- scsi_bus_legacy_handle_cmdline(&VIO_SPAPR_VSCSI_DEVICE(dev)->bus,
- false);
+ qdev_realize_and_unref(dev, &bus->bus, &error_fatal);
+ scsi_bus_legacy_handle_cmdline(&VIO_SPAPR_VSCSI_DEVICE(dev)->bus);
}
-static int spapr_vscsi_devnode(VIOsPAPRDevice *dev, void *fdt, int node_off)
+static int spapr_vscsi_devnode(SpaprVioDevice *dev, void *fdt, int node_off)
{
int ret;
static void spapr_vscsi_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
- VIOsPAPRDeviceClass *k = VIO_SPAPR_DEVICE_CLASS(klass);
+ SpaprVioDeviceClass *k = VIO_SPAPR_DEVICE_CLASS(klass);
k->realize = spapr_vscsi_realize;
k->reset = spapr_vscsi_reset;
k->dt_compatible = "IBM,v-scsi";
k->signal_mask = 0x00000001;
set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
- dc->props = spapr_vscsi_properties;
+ device_class_set_props(dc, spapr_vscsi_properties);
k->rtce_window_size = 0x10000000;
dc->vmsd = &vmstate_spapr_vscsi;
}
projects / mirror_qemu.git / blobdiff