--- /dev/null
+/*
+ * QEMU PowerPC pSeries Logical Partition (aka sPAPR) hardware System Emulator
+ *
+ * PAPR Virtual SCSI, aka ibmvscsi
+ *
+ * Copyright (c) 2010,2011 Benjamin Herrenschmidt, IBM Corporation.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * TODO:
+ *
+ * - Cleanups :-)
+ * - Sort out better how to assign devices to VSCSI instances
+ * - Fix residual counts
+ * - Add indirect descriptors support
+ * - Maybe do autosense (PAPR seems to mandate it, linux doesn't care)
+ */
+#include "hw/hw.h"
+#include "hw/scsi/scsi.h"
+#include "block/scsi.h"
+#include "srp.h"
+#include "hw/qdev.h"
+#include "hw/ppc/spapr.h"
+#include "hw/ppc/spapr_vio.h"
+#include "viosrp.h"
+
+#include <libfdt.h>
+
+/*#define DEBUG_VSCSI*/
+
+#ifdef DEBUG_VSCSI
+#define DPRINTF(fmt, ...) \
+ do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0)
+#else
+#define DPRINTF(fmt, ...) \
+ do { } while (0)
+#endif
+
+/*
+ * Virtual SCSI device
+ */
+
+/* Random numbers */
+#define VSCSI_MAX_SECTORS 4096
+#define VSCSI_REQ_LIMIT 24
+
+#define SRP_RSP_SENSE_DATA_LEN 18
+
+#define SRP_REPORT_LUNS_WLUN 0xc10100000000000ULL
+
+typedef union vscsi_crq {
+ struct viosrp_crq s;
+ uint8_t raw[16];
+} vscsi_crq;
+
+typedef struct vscsi_req {
+ vscsi_crq crq;
+ union viosrp_iu iu;
+
+ /* SCSI request tracking */
+ SCSIRequest *sreq;
+ uint32_t qtag; /* qemu tag != srp tag */
+ bool active;
+ bool writing;
+ bool dma_error;
+ uint32_t data_len;
+ uint32_t senselen;
+ uint8_t sense[SCSI_SENSE_BUF_SIZE];
+
+ /* RDMA related bits */
+ uint8_t dma_fmt;
+ uint16_t local_desc;
+ uint16_t total_desc;
+ uint16_t cdb_offset;
+ uint16_t cur_desc_num;
+ uint16_t cur_desc_offset;
+} 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)
+
+typedef struct {
+ VIOsPAPRDevice vdev;
+ SCSIBus bus;
+ vscsi_req reqs[VSCSI_REQ_LIMIT];
+} VSCSIState;
+
+static struct vscsi_req *vscsi_get_req(VSCSIState *s)
+{
+ vscsi_req *req;
+ int i;
+
+ for (i = 0; i < VSCSI_REQ_LIMIT; i++) {
+ req = &s->reqs[i];
+ if (!req->active) {
+ memset(req, 0, sizeof(*req));
+ req->qtag = i;
+ req->active = 1;
+ return req;
+ }
+ }
+ return NULL;
+}
+
+static struct vscsi_req *vscsi_find_req(VSCSIState *s, uint64_t srp_tag)
+{
+ vscsi_req *req;
+ int i;
+
+ for (i = 0; i < VSCSI_REQ_LIMIT; i++) {
+ req = &s->reqs[i];
+ if (req->iu.srp.cmd.tag == srp_tag) {
+ return req;
+ }
+ }
+ return NULL;
+}
+
+static void vscsi_put_req(vscsi_req *req)
+{
+ if (req->sreq != NULL) {
+ scsi_req_unref(req->sreq);
+ }
+ req->sreq = NULL;
+ req->active = 0;
+}
+
+static SCSIDevice *vscsi_device_find(SCSIBus *bus, uint64_t srp_lun, int *lun)
+{
+ int channel = 0, id = 0;
+
+retry:
+ switch (srp_lun >> 62) {
+ case 0:
+ if ((srp_lun >> 56) != 0) {
+ channel = (srp_lun >> 56) & 0x3f;
+ id = (srp_lun >> 48) & 0xff;
+ srp_lun <<= 16;
+ goto retry;
+ }
+ *lun = (srp_lun >> 48) & 0xff;
+ break;
+
+ case 1:
+ *lun = (srp_lun >> 48) & 0x3fff;
+ break;
+ case 2:
+ channel = (srp_lun >> 53) & 0x7;
+ id = (srp_lun >> 56) & 0x3f;
+ *lun = (srp_lun >> 48) & 0x1f;
+ break;
+ case 3:
+ *lun = -1;
+ return NULL;
+ default:
+ abort();
+ }
+
+ return scsi_device_find(bus, channel, id, *lun);
+}
+
+static int vscsi_send_iu(VSCSIState *s, vscsi_req *req,
+ uint64_t length, uint8_t format)
+{
+ long rc, rc1;
+
+ /* First copy the SRP */
+ rc = spapr_vio_dma_write(&s->vdev, req->crq.s.IU_data_ptr,
+ &req->iu, length);
+ if (rc) {
+ fprintf(stderr, "vscsi_send_iu: DMA write failure !\n");
+ }
+
+ req->crq.s.valid = 0x80;
+ req->crq.s.format = format;
+ 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 */
+
+ if (rc == 0) {
+ req->crq.s.status = VIOSRP_OK;
+ } else {
+ req->crq.s.status = VIOSRP_ADAPTER_FAIL;
+ }
+
+ rc1 = spapr_vio_send_crq(&s->vdev, req->crq.raw);
+ if (rc1) {
+ fprintf(stderr, "vscsi_send_iu: Error sending response\n");
+ return rc1;
+ }
+
+ return rc;
+}
+
+static void vscsi_makeup_sense(VSCSIState *s, vscsi_req *req,
+ uint8_t key, uint8_t asc, uint8_t ascq)
+{
+ req->senselen = SRP_RSP_SENSE_DATA_LEN;
+
+ /* Valid bit and 'current errors' */
+ req->sense[0] = (0x1 << 7 | 0x70);
+ /* Sense key */
+ req->sense[2] = key;
+ /* Additional sense length */
+ req->sense[7] = 0xa; /* 10 bytes */
+ /* Additional sense code */
+ req->sense[12] = asc;
+ req->sense[13] = ascq;
+}
+
+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;
+ uint64_t tag = iu->srp.rsp.tag;
+ int total_len = sizeof(iu->srp.rsp);
+ uint8_t sol_not = iu->srp.cmd.sol_not;
+
+ DPRINTF("VSCSI: Sending resp status: 0x%x, "
+ "res_in: %d, res_out: %d\n", status, res_in, res_out);
+
+ memset(iu, 0, sizeof(struct srp_rsp));
+ iu->srp.rsp.opcode = SRP_RSP;
+ iu->srp.rsp.req_lim_delta = cpu_to_be32(1);
+ iu->srp.rsp.tag = tag;
+
+ /* Handle residuals */
+ if (res_in < 0) {
+ iu->srp.rsp.flags |= SRP_RSP_FLAG_DIUNDER;
+ res_in = -res_in;
+ } else if (res_in) {
+ iu->srp.rsp.flags |= SRP_RSP_FLAG_DIOVER;
+ }
+ if (res_out < 0) {
+ iu->srp.rsp.flags |= SRP_RSP_FLAG_DOUNDER;
+ res_out = -res_out;
+ } else if (res_out) {
+ iu->srp.rsp.flags |= SRP_RSP_FLAG_DOOVER;
+ }
+ iu->srp.rsp.data_in_res_cnt = cpu_to_be32(res_in);
+ iu->srp.rsp.data_out_res_cnt = cpu_to_be32(res_out);
+
+ /* We don't do response data */
+ /* iu->srp.rsp.flags &= ~SRP_RSP_FLAG_RSPVALID; */
+ iu->srp.rsp.resp_data_len = cpu_to_be32(0);
+
+ /* Handle success vs. failure */
+ iu->srp.rsp.status = status;
+ 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;
+ }
+ } else {
+ iu->srp.rsp.sol_not = (sol_not & 0x02) >> 1;
+ }
+
+ vscsi_send_iu(s, req, total_len, VIOSRP_SRP_FORMAT);
+ return 0;
+}
+
+static inline struct srp_direct_buf vscsi_swap_desc(struct srp_direct_buf desc)
+{
+ desc.va = be64_to_cpu(desc.va);
+ desc.len = be32_to_cpu(desc.len);
+ return desc;
+}
+
+static int vscsi_fetch_desc(VSCSIState *s, struct vscsi_req *req,
+ unsigned n, unsigned buf_offset,
+ struct srp_direct_buf *ret)
+{
+ struct srp_cmd *cmd = &req->iu.srp.cmd;
+
+ switch (req->dma_fmt) {
+ case SRP_NO_DATA_DESC: {
+ DPRINTF("VSCSI: no data descriptor\n");
+ return 0;
+ }
+ case SRP_DATA_DESC_DIRECT: {
+ memcpy(ret, cmd->add_data + req->cdb_offset, sizeof(*ret));
+ assert(req->cur_desc_num == 0);
+ DPRINTF("VSCSI: direct segment\n");
+ break;
+ }
+ case SRP_DATA_DESC_INDIRECT: {
+ struct srp_indirect_buf *tmp = (struct srp_indirect_buf *)
+ (cmd->add_data + req->cdb_offset);
+ if (n < req->local_desc) {
+ *ret = tmp->desc_list[n];
+ DPRINTF("VSCSI: indirect segment local tag=0x%x desc#%d/%d\n",
+ req->qtag, n, req->local_desc);
+
+ } else if (n < req->total_desc) {
+ int rc;
+ struct srp_direct_buf tbl_desc = vscsi_swap_desc(tmp->table_desc);
+ unsigned desc_offset = n * sizeof(struct srp_direct_buf);
+
+ if (desc_offset >= tbl_desc.len) {
+ DPRINTF("VSCSI: #%d is ouf of range (%d bytes)\n",
+ n, desc_offset);
+ return -1;
+ }
+ rc = spapr_vio_dma_read(&s->vdev, tbl_desc.va + desc_offset,
+ ret, sizeof(struct srp_direct_buf));
+ if (rc) {
+ DPRINTF("VSCSI: spapr_vio_dma_read -> %d reading ext_desc\n",
+ rc);
+ return -1;
+ }
+ DPRINTF("VSCSI: indirect segment ext. tag=0x%x desc#%d/%d { va=%"PRIx64" len=%x }\n",
+ req->qtag, n, req->total_desc, tbl_desc.va, tbl_desc.len);
+ } else {
+ DPRINTF("VSCSI: Out of descriptors !\n");
+ return 0;
+ }
+ break;
+ }
+ default:
+ fprintf(stderr, "VSCSI: Unknown format %x\n", req->dma_fmt);
+ return -1;
+ }
+
+ *ret = vscsi_swap_desc(*ret);
+ if (buf_offset > ret->len) {
+ DPRINTF(" offset=%x is out of a descriptor #%d boundary=%x\n",
+ buf_offset, req->cur_desc_num, ret->len);
+ return -1;
+ }
+ ret->va += buf_offset;
+ ret->len -= buf_offset;
+
+ DPRINTF(" cur=%d offs=%x ret { va=%"PRIx64" len=%x }\n",
+ req->cur_desc_num, req->cur_desc_offset, ret->va, ret->len);
+
+ return ret->len ? 1 : 0;
+}
+
+static int vscsi_srp_direct_data(VSCSIState *s, vscsi_req *req,
+ uint8_t *buf, uint32_t len)
+{
+ struct srp_direct_buf md;
+ uint32_t llen;
+ int rc = 0;
+
+ rc = vscsi_fetch_desc(s, req, req->cur_desc_num, req->cur_desc_offset, &md);
+ if (rc < 0) {
+ return -1;
+ } else if (rc == 0) {
+ return 0;
+ }
+
+ llen = MIN(len, md.len);
+ if (llen) {
+ if (req->writing) { /* writing = to device = reading from memory */
+ rc = spapr_vio_dma_read(&s->vdev, md.va, buf, llen);
+ } else {
+ rc = spapr_vio_dma_write(&s->vdev, md.va, buf, llen);
+ }
+ }
+
+ if (rc) {
+ return -1;
+ }
+ req->cur_desc_offset += llen;
+
+ return llen;
+}
+
+static int vscsi_srp_indirect_data(VSCSIState *s, vscsi_req *req,
+ uint8_t *buf, uint32_t len)
+{
+ struct srp_direct_buf md;
+ int rc = 0;
+ uint32_t llen, total = 0;
+
+ DPRINTF("VSCSI: indirect segment 0x%x bytes\n", len);
+
+ /* While we have data ... */
+ while (len) {
+ rc = vscsi_fetch_desc(s, req, req->cur_desc_num, req->cur_desc_offset, &md);
+ if (rc < 0) {
+ return -1;
+ } else if (rc == 0) {
+ break;
+ }
+
+ /* Perform transfer */
+ llen = MIN(len, md.len);
+ if (req->writing) { /* writing = to device = reading from memory */
+ rc = spapr_vio_dma_read(&s->vdev, md.va, buf, llen);
+ } else {
+ rc = spapr_vio_dma_write(&s->vdev, md.va, buf, llen);
+ }
+ if (rc) {
+ DPRINTF("VSCSI: spapr_vio_dma_r/w(%d) -> %d\n", req->writing, rc);
+ break;
+ }
+ DPRINTF("VSCSI: data: %02x %02x %02x %02x...\n",
+ buf[0], buf[1], buf[2], buf[3]);
+
+ len -= llen;
+ buf += llen;
+
+ total += llen;
+
+ /* Update current position in the current descriptor */
+ req->cur_desc_offset += llen;
+ if (md.len == llen) {
+ /* Go to the next descriptor if the current one finished */
+ ++req->cur_desc_num;
+ req->cur_desc_offset = 0;
+ }
+ }
+
+ return rc ? -1 : total;
+}
+
+static int vscsi_srp_transfer_data(VSCSIState *s, vscsi_req *req,
+ int writing, uint8_t *buf, uint32_t len)
+{
+ int err = 0;
+
+ switch (req->dma_fmt) {
+ case SRP_NO_DATA_DESC:
+ DPRINTF("VSCSI: no data desc transfer, skipping 0x%x bytes\n", len);
+ break;
+ case SRP_DATA_DESC_DIRECT:
+ err = vscsi_srp_direct_data(s, req, buf, len);
+ break;
+ case SRP_DATA_DESC_INDIRECT:
+ err = vscsi_srp_indirect_data(s, req, buf, len);
+ break;
+ }
+ return err;
+}
+
+/* Bits from linux srp */
+static int data_out_desc_size(struct srp_cmd *cmd)
+{
+ int size = 0;
+ uint8_t fmt = cmd->buf_fmt >> 4;
+
+ switch (fmt) {
+ case SRP_NO_DATA_DESC:
+ break;
+ case SRP_DATA_DESC_DIRECT:
+ size = sizeof(struct srp_direct_buf);
+ break;
+ case SRP_DATA_DESC_INDIRECT:
+ size = sizeof(struct srp_indirect_buf) +
+ sizeof(struct srp_direct_buf)*cmd->data_out_desc_cnt;
+ break;
+ default:
+ break;
+ }
+ return size;
+}
+
+static int vscsi_preprocess_desc(vscsi_req *req)
+{
+ struct srp_cmd *cmd = &req->iu.srp.cmd;
+
+ req->cdb_offset = cmd->add_cdb_len & ~3;
+
+ if (req->writing) {
+ req->dma_fmt = cmd->buf_fmt >> 4;
+ } else {
+ req->cdb_offset += data_out_desc_size(cmd);
+ req->dma_fmt = cmd->buf_fmt & ((1U << 4) - 1);
+ }
+
+ switch (req->dma_fmt) {
+ case SRP_NO_DATA_DESC:
+ break;
+ case SRP_DATA_DESC_DIRECT:
+ req->total_desc = req->local_desc = 1;
+ break;
+ case SRP_DATA_DESC_INDIRECT: {
+ struct srp_indirect_buf *ind_tmp = (struct srp_indirect_buf *)
+ (cmd->add_data + req->cdb_offset);
+
+ req->total_desc = be32_to_cpu(ind_tmp->table_desc.len) /
+ sizeof(struct srp_direct_buf);
+ req->local_desc = req->writing ? cmd->data_out_desc_cnt :
+ cmd->data_in_desc_cnt;
+ break;
+ }
+ default:
+ fprintf(stderr,
+ "vscsi_preprocess_desc: Unknown format %x\n", req->dma_fmt);
+ return -1;
+ }
+
+ return 0;
+}
+
+/* Callback to indicate that the SCSI layer has completed a transfer. */
+static void vscsi_transfer_data(SCSIRequest *sreq, uint32_t len)
+{
+ VSCSIState *s = VIO_SPAPR_VSCSI_DEVICE(sreq->bus->qbus.parent);
+ vscsi_req *req = sreq->hba_private;
+ uint8_t *buf;
+ int rc = 0;
+
+ DPRINTF("VSCSI: SCSI xfer complete tag=0x%x len=0x%x, req=%p\n",
+ sreq->tag, len, req);
+ if (req == NULL) {
+ fprintf(stderr, "VSCSI: Can't find request for tag 0x%x\n", sreq->tag);
+ return;
+ }
+
+ if (len) {
+ buf = scsi_req_get_buf(sreq);
+ rc = vscsi_srp_transfer_data(s, req, req->writing, buf, len);
+ }
+ if (rc < 0) {
+ fprintf(stderr, "VSCSI: RDMA error rc=%d!\n", rc);
+ req->dma_error = true;
+ scsi_req_cancel(req->sreq);
+ return;
+ }
+
+ /* Start next chunk */
+ req->data_len -= rc;
+ scsi_req_continue(sreq);
+}
+
+/* Callback to indicate that the SCSI layer has completed a transfer. */
+static void vscsi_command_complete(SCSIRequest *sreq, uint32_t status, 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;
+
+ DPRINTF("VSCSI: SCSI cmd complete, tag=0x%x status=0x%x, req=%p\n",
+ sreq->tag, status, req);
+ if (req == NULL) {
+ fprintf(stderr, "VSCSI: Can't find request for tag 0x%x\n", sreq->tag);
+ return;
+ }
+
+ if (status == CHECK_CONDITION) {
+ req->senselen = scsi_req_get_sense(req->sreq, req->sense,
+ sizeof(req->sense));
+ DPRINTF("VSCSI: Sense data, %d bytes:\n", req->senselen);
+ DPRINTF(" %02x %02x %02x %02x %02x %02x %02x %02x\n",
+ req->sense[0], req->sense[1], req->sense[2], req->sense[3],
+ req->sense[4], req->sense[5], req->sense[6], req->sense[7]);
+ DPRINTF(" %02x %02x %02x %02x %02x %02x %02x %02x\n",
+ req->sense[8], req->sense[9], req->sense[10], req->sense[11],
+ req->sense[12], req->sense[13], req->sense[14], req->sense[15]);
+ }
+
+ DPRINTF("VSCSI: Command complete err=%d\n", status);
+ if (status == 0) {
+ /* We handle overflows, not underflows for normal commands,
+ * but hopefully nobody cares
+ */
+ if (req->writing) {
+ res_out = req->data_len;
+ } else {
+ res_in = req->data_len;
+ }
+ }
+ vscsi_send_rsp(s, req, status, res_in, res_out);
+ vscsi_put_req(req);
+}
+
+static void vscsi_request_cancelled(SCSIRequest *sreq)
+{
+ vscsi_req *req = sreq->hba_private;
+
+ if (req->dma_error) {
+ VSCSIState *s = VIO_SPAPR_VSCSI_DEVICE(sreq->bus->qbus.parent);
+
+ vscsi_makeup_sense(s, req, HARDWARE_ERROR, 0, 0);
+ vscsi_send_rsp(s, req, CHECK_CONDITION, 0, 0);
+ }
+ vscsi_put_req(req);
+}
+
+static const VMStateDescription vmstate_spapr_vscsi_req = {
+ .name = "spapr_vscsi_req",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_BUFFER(crq.raw, vscsi_req),
+ VMSTATE_BUFFER(iu.srp.reserved, vscsi_req),
+ VMSTATE_UINT32(qtag, vscsi_req),
+ VMSTATE_BOOL(active, vscsi_req),
+ VMSTATE_UINT32(data_len, vscsi_req),
+ VMSTATE_BOOL(writing, vscsi_req),
+ VMSTATE_UINT32(senselen, vscsi_req),
+ VMSTATE_BUFFER(sense, vscsi_req),
+ VMSTATE_UINT8(dma_fmt, vscsi_req),
+ VMSTATE_UINT16(local_desc, vscsi_req),
+ VMSTATE_UINT16(total_desc, vscsi_req),
+ VMSTATE_UINT16(cdb_offset, vscsi_req),
+ /*Restart SCSI request from the beginning for now */
+ /*VMSTATE_UINT16(cur_desc_num, vscsi_req),
+ VMSTATE_UINT16(cur_desc_offset, vscsi_req),*/
+ VMSTATE_END_OF_LIST()
+ },
+};
+
+static void vscsi_save_request(QEMUFile *f, SCSIRequest *sreq)
+{
+ vscsi_req *req = sreq->hba_private;
+ assert(req->active);
+
+ vmstate_save_state(f, &vmstate_spapr_vscsi_req, req, NULL);
+
+ DPRINTF("VSCSI: saving tag=%u, current desc#%d, offset=%x\n",
+ req->qtag, req->cur_desc_num, req->cur_desc_offset);
+}
+
+static void *vscsi_load_request(QEMUFile *f, SCSIRequest *sreq)
+{
+ SCSIBus *bus = sreq->bus;
+ VSCSIState *s = VIO_SPAPR_VSCSI_DEVICE(bus->qbus.parent);
+ vscsi_req *req;
+ int rc;
+
+ assert(sreq->tag < VSCSI_REQ_LIMIT);
+ req = &s->reqs[sreq->tag];
+ assert(!req->active);
+
+ memset(req, 0, sizeof(*req));
+ rc = vmstate_load_state(f, &vmstate_spapr_vscsi_req, req, 1);
+ if (rc) {
+ fprintf(stderr, "VSCSI: failed loading request tag#%u\n", sreq->tag);
+ return NULL;
+ }
+ assert(req->active);
+
+ req->sreq = scsi_req_ref(sreq);
+
+ DPRINTF("VSCSI: restoring tag=%u, current desc#%d, offset=%x\n",
+ req->qtag, req->cur_desc_num, req->cur_desc_offset);
+
+ return req;
+}
+
+static void vscsi_process_login(VSCSIState *s, vscsi_req *req)
+{
+ union viosrp_iu *iu = &req->iu;
+ struct srp_login_rsp *rsp = &iu->srp.login_rsp;
+ uint64_t tag = iu->srp.rsp.tag;
+
+ DPRINTF("VSCSI: Got login, sendin response !\n");
+
+ /* TODO handle case that requested size is wrong and
+ * buffer format is wrong
+ */
+ memset(iu, 0, sizeof(struct srp_login_rsp));
+ rsp->opcode = SRP_LOGIN_RSP;
+ /* Don't advertise quite as many request as we support to
+ * keep room for management stuff etc...
+ */
+ 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));
+ /* direct and indirect */
+ rsp->buf_fmt = cpu_to_be16(SRP_BUF_FORMAT_DIRECT | SRP_BUF_FORMAT_INDIRECT);
+
+ vscsi_send_iu(s, req, sizeof(*rsp), VIOSRP_SRP_FORMAT);
+}
+
+static void vscsi_inquiry_no_target(VSCSIState *s, vscsi_req *req)
+{
+ uint8_t *cdb = req->iu.srp.cmd.cdb;
+ uint8_t resp_data[36];
+ int rc, len, alen;
+
+ /* We dont do EVPD. Also check that page_code is 0 */
+ if ((cdb[1] & 0x01) || cdb[2] != 0) {
+ /* Send INVALID FIELD IN CDB */
+ vscsi_makeup_sense(s, req, ILLEGAL_REQUEST, 0x24, 0);
+ vscsi_send_rsp(s, req, CHECK_CONDITION, 0, 0);
+ return;
+ }
+ alen = cdb[3];
+ alen = (alen << 8) | cdb[4];
+ len = MIN(alen, 36);
+
+ /* Fake up inquiry using PQ=3 */
+ memset(resp_data, 0, 36);
+ resp_data[0] = 0x7f; /* Not capable of supporting a device here */
+ resp_data[2] = 0x06; /* SPS-4 */
+ resp_data[3] = 0x02; /* Resp data format */
+ resp_data[4] = 36 - 5; /* Additional length */
+ resp_data[7] = 0x10; /* Sync transfers */
+ memcpy(&resp_data[16], "QEMU EMPTY ", 16);
+ memcpy(&resp_data[8], "QEMU ", 8);
+
+ req->writing = 0;
+ vscsi_preprocess_desc(req);
+ rc = vscsi_srp_transfer_data(s, req, 0, resp_data, len);
+ if (rc < 0) {
+ vscsi_makeup_sense(s, req, HARDWARE_ERROR, 0, 0);
+ vscsi_send_rsp(s, req, CHECK_CONDITION, 0, 0);
+ } else {
+ vscsi_send_rsp(s, req, 0, 36 - rc, 0);
+ }
+}
+
+static void vscsi_report_luns(VSCSIState *s, vscsi_req *req)
+{
+ BusChild *kid;
+ int i, len, n, rc;
+ uint8_t *resp_data;
+ bool found_lun0;
+
+ n = 0;
+ found_lun0 = false;
+ QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
+ SCSIDevice *dev = SCSI_DEVICE(kid->child);
+
+ n += 8;
+ if (dev->channel == 0 && dev->id == 0 && dev->lun == 0) {
+ found_lun0 = true;
+ }
+ }
+ if (!found_lun0) {
+ n += 8;
+ }
+ len = n+8;
+
+ resp_data = g_malloc0(len);
+ memset(resp_data, 0, len);
+ stl_be_p(resp_data, n);
+ i = found_lun0 ? 8 : 16;
+ QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
+ DeviceState *qdev = kid->child;
+ SCSIDevice *dev = SCSI_DEVICE(qdev);
+
+ if (dev->id == 0 && dev->channel == 0) {
+ resp_data[i] = 0; /* Use simple LUN for 0 (SAM5 4.7.7.1) */
+ } else {
+ resp_data[i] = (2 << 6); /* Otherwise LUN addressing (4.7.7.4) */
+ }
+ resp_data[i] |= dev->id;
+ resp_data[i+1] = (dev->channel << 5);
+ resp_data[i+1] |= dev->lun;
+ i += 8;
+ }
+
+ vscsi_preprocess_desc(req);
+ rc = vscsi_srp_transfer_data(s, req, 0, resp_data, len);
+ g_free(resp_data);
+ if (rc < 0) {
+ vscsi_makeup_sense(s, req, HARDWARE_ERROR, 0, 0);
+ vscsi_send_rsp(s, req, CHECK_CONDITION, 0, 0);
+ } else {
+ vscsi_send_rsp(s, req, 0, len - rc, 0);
+ }
+}
+
+static int vscsi_queue_cmd(VSCSIState *s, vscsi_req *req)
+{
+ union srp_iu *srp = &req->iu.srp;
+ SCSIDevice *sdev;
+ int n, lun;
+
+ if ((srp->cmd.lun == 0 || be64_to_cpu(srp->cmd.lun) == SRP_REPORT_LUNS_WLUN)
+ && srp->cmd.cdb[0] == REPORT_LUNS) {
+ vscsi_report_luns(s, req);
+ return 0;
+ }
+
+ sdev = vscsi_device_find(&s->bus, be64_to_cpu(srp->cmd.lun), &lun);
+ if (!sdev) {
+ DPRINTF("VSCSI: Command for lun %08" PRIx64 " with no drive\n",
+ be64_to_cpu(srp->cmd.lun));
+ if (srp->cmd.cdb[0] == INQUIRY) {
+ vscsi_inquiry_no_target(s, req);
+ } else {
+ vscsi_makeup_sense(s, req, ILLEGAL_REQUEST, 0x24, 0x00);
+ vscsi_send_rsp(s, req, CHECK_CONDITION, 0, 0);
+ } return 1;
+ }
+
+ req->sreq = scsi_req_new(sdev, req->qtag, lun, srp->cmd.cdb, req);
+ n = scsi_req_enqueue(req->sreq);
+
+ DPRINTF("VSCSI: Queued command tag 0x%x CMD 0x%x=%s LUN %d ret: %d\n",
+ req->qtag, srp->cmd.cdb[0], scsi_command_name(srp->cmd.cdb[0]),
+ lun, n);
+
+ if (n) {
+ /* Transfer direction must be set before preprocessing the
+ * descriptors
+ */
+ req->writing = (n < 1);
+
+ /* Preprocess RDMA descriptors */
+ vscsi_preprocess_desc(req);
+
+ /* Get transfer direction and initiate transfer */
+ if (n > 0) {
+ req->data_len = n;
+ } else if (n < 0) {
+ req->data_len = -n;
+ }
+ scsi_req_continue(req->sreq);
+ }
+ /* Don't touch req here, it may have been recycled already */
+
+ return 0;
+}
+
+static int vscsi_process_tsk_mgmt(VSCSIState *s, vscsi_req *req)
+{
+ union viosrp_iu *iu = &req->iu;
+ 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);
+ if (!d) {
+ resp = SRP_TSK_MGMT_FIELDS_INVALID;
+ } else {
+ switch (iu->srp.tsk_mgmt.tsk_mgmt_func) {
+ case SRP_TSK_ABORT_TASK:
+ if (d->lun != lun) {
+ resp = SRP_TSK_MGMT_FIELDS_INVALID;
+ break;
+ }
+
+ tmpreq = vscsi_find_req(s, req->iu.srp.tsk_mgmt.task_tag);
+ if (tmpreq && tmpreq->sreq) {
+ assert(tmpreq->sreq->hba_private);
+ scsi_req_cancel(tmpreq->sreq);
+ }
+ break;
+
+ case SRP_TSK_LUN_RESET:
+ if (d->lun != lun) {
+ resp = SRP_TSK_MGMT_FIELDS_INVALID;
+ break;
+ }
+
+ qdev_reset_all(&d->qdev);
+ break;
+
+ case SRP_TSK_ABORT_TASK_SET:
+ case SRP_TSK_CLEAR_TASK_SET:
+ if (d->lun != lun) {
+ resp = SRP_TSK_MGMT_FIELDS_INVALID;
+ break;
+ }
+
+ for (i = 0; i < VSCSI_REQ_LIMIT; i++) {
+ tmpreq = &s->reqs[i];
+ if (tmpreq->iu.srp.cmd.lun != req->iu.srp.tsk_mgmt.lun) {
+ continue;
+ }
+ if (!tmpreq->active || !tmpreq->sreq) {
+ continue;
+ }
+ assert(tmpreq->sreq->hba_private);
+ scsi_req_cancel(tmpreq->sreq);
+ }
+ break;
+
+ case SRP_TSK_CLEAR_ACA:
+ resp = SRP_TSK_MGMT_NOT_SUPPORTED;
+ break;
+
+ default:
+ resp = SRP_TSK_MGMT_FIELDS_INVALID;
+ break;
+ }
+ }
+
+ /* Compose the response here as */
+ memset(iu, 0, sizeof(struct srp_rsp) + 4);
+ iu->srp.rsp.opcode = SRP_RSP;
+ iu->srp.rsp.req_lim_delta = cpu_to_be32(1);
+ iu->srp.rsp.tag = tag;
+ iu->srp.rsp.flags |= SRP_RSP_FLAG_RSPVALID;
+ iu->srp.rsp.resp_data_len = cpu_to_be32(4);
+ if (resp) {
+ iu->srp.rsp.sol_not = (sol_not & 0x04) >> 2;
+ } else {
+ iu->srp.rsp.sol_not = (sol_not & 0x02) >> 1;
+ }
+
+ iu->srp.rsp.status = GOOD;
+ iu->srp.rsp.data[3] = resp;
+
+ vscsi_send_iu(s, req, sizeof(iu->srp.rsp) + 4, VIOSRP_SRP_FORMAT);
+
+ return 1;
+}
+
+static int vscsi_handle_srp_req(VSCSIState *s, vscsi_req *req)
+{
+ union srp_iu *srp = &req->iu.srp;
+ int done = 1;
+ uint8_t opcode = srp->rsp.opcode;
+
+ switch (opcode) {
+ case SRP_LOGIN_REQ:
+ vscsi_process_login(s, req);
+ break;
+ case SRP_TSK_MGMT:
+ done = vscsi_process_tsk_mgmt(s, req);
+ break;
+ case SRP_CMD:
+ done = vscsi_queue_cmd(s, req);
+ break;
+ case SRP_LOGIN_RSP:
+ case SRP_I_LOGOUT:
+ case SRP_T_LOGOUT:
+ case SRP_RSP:
+ case SRP_CRED_REQ:
+ case SRP_CRED_RSP:
+ case SRP_AER_REQ:
+ case SRP_AER_RSP:
+ fprintf(stderr, "VSCSI: Unsupported opcode %02x\n", opcode);
+ break;
+ default:
+ fprintf(stderr, "VSCSI: Unknown type %02x\n", opcode);
+ }
+
+ return done;
+}
+
+static int vscsi_send_adapter_info(VSCSIState *s, vscsi_req *req)
+{
+ struct viosrp_adapter_info *sinfo;
+ struct mad_adapter_info_data info;
+ int rc;
+
+ sinfo = &req->iu.mad.adapter_info;
+
+#if 0 /* What for ? */
+ rc = spapr_vio_dma_read(&s->vdev, be64_to_cpu(sinfo->buffer),
+ &info, be16_to_cpu(sinfo->common.length));
+ if (rc) {
+ fprintf(stderr, "vscsi_send_adapter_info: DMA read failure !\n");
+ }
+#endif
+ memset(&info, 0, sizeof(info));
+ strcpy(info.srp_version, SRP_VERSION);
+ memcpy(info.partition_name, "qemu", sizeof("qemu"));
+ info.partition_number = cpu_to_be32(0);
+ info.mad_version = cpu_to_be32(1);
+ info.os_type = cpu_to_be32(2);
+ info.port_max_txu[0] = cpu_to_be32(VSCSI_MAX_SECTORS << 9);
+
+ rc = spapr_vio_dma_write(&s->vdev, be64_to_cpu(sinfo->buffer),
+ &info, be16_to_cpu(sinfo->common.length));
+ if (rc) {
+ fprintf(stderr, "vscsi_send_adapter_info: DMA write failure !\n");
+ }
+
+ sinfo->common.status = rc ? cpu_to_be32(1) : 0;
+
+ return vscsi_send_iu(s, req, sizeof(*sinfo), VIOSRP_MAD_FORMAT);
+}
+
+static int vscsi_send_capabilities(VSCSIState *s, vscsi_req *req)
+{
+ struct viosrp_capabilities *vcap;
+ struct capabilities cap = { };
+ uint16_t len, req_len;
+ uint64_t buffer;
+ int rc;
+
+ vcap = &req->iu.mad.capabilities;
+ req_len = len = be16_to_cpu(vcap->common.length);
+ buffer = be64_to_cpu(vcap->buffer);
+ if (len > sizeof(cap)) {
+ fprintf(stderr, "vscsi_send_capabilities: capabilities size mismatch !\n");
+
+ /*
+ * Just read and populate the structure that is known.
+ * Zero rest of the structure.
+ */
+ len = sizeof(cap);
+ }
+ rc = spapr_vio_dma_read(&s->vdev, buffer, &cap, len);
+ if (rc) {
+ fprintf(stderr, "vscsi_send_capabilities: DMA read failure !\n");
+ }
+
+ /*
+ * Current implementation does not suppport any migration or
+ * reservation capabilities. Construct the response telling the
+ * guest not to use them.
+ */
+ cap.flags = 0;
+ cap.migration.ecl = 0;
+ cap.reserve.type = 0;
+ cap.migration.common.server_support = 0;
+ cap.reserve.common.server_support = 0;
+
+ rc = spapr_vio_dma_write(&s->vdev, buffer, &cap, len);
+ if (rc) {
+ fprintf(stderr, "vscsi_send_capabilities: DMA write failure !\n");
+ }
+ if (req_len > len) {
+ /*
+ * Being paranoid and lets not worry about the error code
+ * here. Actual write of the cap is done above.
+ */
+ spapr_vio_dma_set(&s->vdev, (buffer + len), 0, (req_len - len));
+ }
+ vcap->common.status = rc ? cpu_to_be32(1) : 0;
+ return vscsi_send_iu(s, req, sizeof(*vcap), VIOSRP_MAD_FORMAT);
+}
+
+static int vscsi_handle_mad_req(VSCSIState *s, vscsi_req *req)
+{
+ union mad_iu *mad = &req->iu.mad;
+ bool request_handled = false;
+ uint64_t retlen = 0;
+
+ switch (be32_to_cpu(mad->empty_iu.common.type)) {
+ case VIOSRP_EMPTY_IU_TYPE:
+ fprintf(stderr, "Unsupported EMPTY MAD IU\n");
+ retlen = sizeof(mad->empty_iu);
+ break;
+ case VIOSRP_ERROR_LOG_TYPE:
+ fprintf(stderr, "Unsupported ERROR LOG MAD IU\n");
+ retlen = sizeof(mad->error_log);
+ break;
+ case VIOSRP_ADAPTER_INFO_TYPE:
+ vscsi_send_adapter_info(s, req);
+ request_handled = true;
+ break;
+ case VIOSRP_HOST_CONFIG_TYPE:
+ retlen = sizeof(mad->host_config);
+ break;
+ case VIOSRP_CAPABILITIES_TYPE:
+ vscsi_send_capabilities(s, req);
+ request_handled = true;
+ break;
+ default:
+ fprintf(stderr, "VSCSI: Unknown MAD type %02x\n",
+ be32_to_cpu(mad->empty_iu.common.type));
+ /*
+ * PAPR+ says that "The length field is set to the length
+ * of the data structure(s) used in the command".
+ * As we did not recognize the request type, put zero there.
+ */
+ retlen = 0;
+ }
+
+ if (!request_handled) {
+ mad->empty_iu.common.status = cpu_to_be16(VIOSRP_MAD_NOT_SUPPORTED);
+ vscsi_send_iu(s, req, retlen, VIOSRP_MAD_FORMAT);
+ }
+
+ return 1;
+}
+
+static void vscsi_got_payload(VSCSIState *s, vscsi_crq *crq)
+{
+ vscsi_req *req;
+ int done;
+
+ req = vscsi_get_req(s);
+ if (req == NULL) {
+ fprintf(stderr, "VSCSI: Failed to get a request !\n");
+ return;
+ }
+
+ /* We only support a limited number of descriptors, we know
+ * the ibmvscsi driver uses up to 10 max, so it should fit
+ * 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)) {
+ fprintf(stderr, "VSCSI: SRP IU too long (%d bytes) !\n",
+ crq->s.IU_length);
+ vscsi_put_req(req);
+ return;
+ }
+
+ /* XXX Handle failure differently ? */
+ if (spapr_vio_dma_read(&s->vdev, crq->s.IU_data_ptr, &req->iu,
+ crq->s.IU_length)) {
+ fprintf(stderr, "vscsi_got_payload: DMA read failure !\n");
+ vscsi_put_req(req);
+ return;
+ }
+ memcpy(&req->crq, crq, sizeof(vscsi_crq));
+
+ if (crq->s.format == VIOSRP_MAD_FORMAT) {
+ done = vscsi_handle_mad_req(s, req);
+ } else {
+ done = vscsi_handle_srp_req(s, req);
+ }
+
+ if (done) {
+ vscsi_put_req(req);
+ }
+}
+
+
+static int vscsi_do_crq(struct VIOsPAPRDevice *dev, uint8_t *crq_data)
+{
+ VSCSIState *s = VIO_SPAPR_VSCSI_DEVICE(dev);
+ vscsi_crq crq;
+
+ memcpy(crq.raw, crq_data, 16);
+ crq.s.timeout = be16_to_cpu(crq.s.timeout);
+ crq.s.IU_length = be16_to_cpu(crq.s.IU_length);
+ crq.s.IU_data_ptr = be64_to_cpu(crq.s.IU_data_ptr);
+
+ DPRINTF("VSCSI: do_crq %02x %02x ...\n", crq.raw[0], crq.raw[1]);
+
+ switch (crq.s.valid) {
+ case 0xc0: /* Init command/response */
+
+ /* Respond to initialization request */
+ if (crq.s.format == 0x01) {
+ memset(crq.raw, 0, 16);
+ crq.s.valid = 0xc0;
+ crq.s.format = 0x02;
+ spapr_vio_send_crq(dev, crq.raw);
+ }
+
+ /* Note that in hotplug cases, we might get a 0x02
+ * as a result of us emitting the init request
+ */
+
+ break;
+ case 0xff: /* Link event */
+
+ /* Not handled for now */
+
+ break;
+ case 0x80: /* Payloads */
+ switch (crq.s.format) {
+ case VIOSRP_SRP_FORMAT: /* AKA VSCSI request */
+ case VIOSRP_MAD_FORMAT: /* AKA VSCSI response */
+ vscsi_got_payload(s, &crq);
+ break;
+ case VIOSRP_OS400_FORMAT:
+ case VIOSRP_AIX_FORMAT:
+ case VIOSRP_LINUX_FORMAT:
+ case VIOSRP_INLINE_FORMAT:
+ fprintf(stderr, "vscsi_do_srq: Unsupported payload format %02x\n",
+ crq.s.format);
+ break;
+ default:
+ fprintf(stderr, "vscsi_do_srq: Unknown payload format %02x\n",
+ crq.s.format);
+ }
+ break;
+ default:
+ fprintf(stderr, "vscsi_do_crq: unknown CRQ %02x %02x ...\n",
+ crq.raw[0], crq.raw[1]);
+ };
+
+ return 0;
+}
+
+static const struct SCSIBusInfo vscsi_scsi_info = {
+ .tcq = true,
+ .max_channel = 7, /* logical unit addressing format */
+ .max_target = 63,
+ .max_lun = 31,
+
+ .transfer_data = vscsi_transfer_data,
+ .complete = vscsi_command_complete,
+ .cancel = vscsi_request_cancelled,
+ .save_request = vscsi_save_request,
+ .load_request = vscsi_load_request,
+};
+
+static void spapr_vscsi_reset(VIOsPAPRDevice *dev)
+{
+ VSCSIState *s = VIO_SPAPR_VSCSI_DEVICE(dev);
+ int i;
+
+ memset(s->reqs, 0, sizeof(s->reqs));
+ for (i = 0; i < VSCSI_REQ_LIMIT; i++) {
+ s->reqs[i].qtag = i;
+ }
+}
+
+static void spapr_vscsi_realize(VIOsPAPRDevice *dev, Error **errp)
+{
+ VSCSIState *s = VIO_SPAPR_VSCSI_DEVICE(dev);
+
+ dev->crq.SendFunc = vscsi_do_crq;
+
+ scsi_bus_new(&s->bus, sizeof(s->bus), DEVICE(dev),
+ &vscsi_scsi_info, NULL);
+ if (!dev->qdev.hotplugged) {
+ scsi_bus_legacy_handle_cmdline(&s->bus, errp);
+ }
+}
+
+void spapr_vscsi_create(VIOsPAPRBus *bus)
+{
+ DeviceState *dev;
+
+ dev = qdev_create(&bus->bus, "spapr-vscsi");
+
+ qdev_init_nofail(dev);
+}
+
+static int spapr_vscsi_devnode(VIOsPAPRDevice *dev, void *fdt, int node_off)
+{
+ int ret;
+
+ ret = fdt_setprop_cell(fdt, node_off, "#address-cells", 2);
+ if (ret < 0) {
+ return ret;
+ }
+
+ ret = fdt_setprop_cell(fdt, node_off, "#size-cells", 0);
+ if (ret < 0) {
+ return ret;
+ }
+
+ return 0;
+}
+
+static Property spapr_vscsi_properties[] = {
+ DEFINE_SPAPR_PROPERTIES(VSCSIState, vdev),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static const VMStateDescription vmstate_spapr_vscsi = {
+ .name = "spapr_vscsi",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_SPAPR_VIO(vdev, VSCSIState),
+ /* VSCSI state */
+ /* ???? */
+
+ VMSTATE_END_OF_LIST()
+ },
+};
+
+static void spapr_vscsi_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ VIOsPAPRDeviceClass *k = VIO_SPAPR_DEVICE_CLASS(klass);
+
+ k->realize = spapr_vscsi_realize;
+ k->reset = spapr_vscsi_reset;
+ k->devnode = spapr_vscsi_devnode;
+ k->dt_name = "v-scsi";
+ k->dt_type = "vscsi";
+ k->dt_compatible = "IBM,v-scsi";
+ k->signal_mask = 0x00000001;
+ set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
+ dc->props = spapr_vscsi_properties;
+ k->rtce_window_size = 0x10000000;
+ dc->vmsd = &vmstate_spapr_vscsi;
+}
+
+static const TypeInfo spapr_vscsi_info = {
+ .name = TYPE_VIO_SPAPR_VSCSI_DEVICE,
+ .parent = TYPE_VIO_SPAPR_DEVICE,
+ .instance_size = sizeof(VSCSIState),
+ .class_init = spapr_vscsi_class_init,
+};
+
+static void spapr_vscsi_register_types(void)
+{
+ type_register_static(&spapr_vscsi_info);
+}
+
+type_init(spapr_vscsi_register_types)
Code Review / kvmfornfv.git / blobdiff