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vhost: switch to the new rte_vhost API for GPA translation

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DPDK will deprecate the old API soon.

Change-Id: I0522d47d9cc0b80fb0e2ceb9cc47c45ff51a5077
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/408719
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Dariusz Stojaczyk 2018-04-17 22:30:55 +02:00 committed by Daniel Verkamp
parent 8760280eb3
commit 466eb99e9f
4 changed files with 26 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
lib/vhost/vhost.c
View File

@ -86,9 +86,19 @@ const struct vhost_device_ops g_spdk_vhost_ops = {
static struct spdk_vhost_dev *g_spdk_vhost_devices[MAX_VHOST_DEVICES];
static pthread_mutex_t g_spdk_vhost_mutex = PTHREAD_MUTEX_INITIALIZER;
void *spdk_vhost_gpa_to_vva(struct spdk_vhost_dev *vdev, uint64_t addr)
void *spdk_vhost_gpa_to_vva(struct spdk_vhost_dev *vdev, uint64_t addr, uint64_t len)
{
return (void *)rte_vhost_gpa_to_vva(vdev->mem, addr);
void *vva;
uint64_t newlen;
newlen = len;
vva = (void *)rte_vhost_va_from_guest_pa(vdev->mem, addr, &newlen);
if (newlen != len) {
return NULL;
}
return vva;
}
static void
@ -213,8 +223,9 @@ spdk_vhost_vq_get_desc(struct spdk_vhost_dev *vdev, struct spdk_vhost_virtqueue
if (spdk_vhost_vring_desc_is_indirect(*desc)) {
assert(spdk_vhost_dev_has_feature(vdev, VIRTIO_RING_F_INDIRECT_DESC));
*desc_table = spdk_vhost_gpa_to_vva(vdev, (*desc)->addr);
*desc_table_size = (*desc)->len / sizeof(**desc);
*desc_table = spdk_vhost_gpa_to_vva(vdev, (*desc)->addr,
sizeof(**desc) * *desc_table_size);
*desc = *desc_table;
if (*desc == NULL) {
return -1;
@ -429,7 +440,7 @@ spdk_vhost_vring_desc_to_iov(struct spdk_vhost_dev *vdev, struct iovec *iov,
SPDK_ERRLOG("SPDK_VHOST_IOVS_MAX(%d) reached\n", SPDK_VHOST_IOVS_MAX);
return -1;
}
vva = (uintptr_t)spdk_vhost_gpa_to_vva(vdev, payload);
vva = (uintptr_t)rte_vhost_gpa_to_vva(vdev->mem, payload);
if (vva == 0) {
SPDK_ERRLOG("gpa_to_vva(%p) == NULL\n", (void *)payload);
return -1;
@ -448,7 +459,7 @@ spdk_vhost_vring_desc_to_iov(struct spdk_vhost_dev *vdev, struct iovec *iov,
*/
len = to_boundary;
while (len < remaining) {
if (vva + len != (uintptr_t)spdk_vhost_gpa_to_vva(vdev, payload + len)) {
if (vva + len != (uintptr_t)rte_vhost_gpa_to_vva(vdev->mem, payload + len)) {
break;
}
len += spdk_min(remaining - len, 0x200000);

2
lib/vhost/vhost_internal.h
View File

@ -172,7 +172,7 @@ struct spdk_vhost_dev *spdk_vhost_dev_find(const char *ctrlr_name);
void spdk_vhost_dev_mem_register(struct spdk_vhost_dev *vdev);
void spdk_vhost_dev_mem_unregister(struct spdk_vhost_dev *vdev);
void *spdk_vhost_gpa_to_vva(struct spdk_vhost_dev *vdev, uint64_t addr);
void *spdk_vhost_gpa_to_vva(struct spdk_vhost_dev *vdev, uint64_t addr, uint64_t len);
uint16_t spdk_vhost_vq_avail_ring_get(struct spdk_vhost_virtqueue *vq, uint16_t *reqs,
uint16_t reqs_len);

14
lib/vhost/vhost_scsi.c
View File

@ -185,7 +185,7 @@ eventq_enqueue(struct spdk_vhost_scsi_dev *svdev, unsigned scsi_dev_num, uint32_
goto out;
}
desc_ev = spdk_vhost_gpa_to_vva(&svdev->vdev, desc->addr);
desc_ev = spdk_vhost_gpa_to_vva(&svdev->vdev, desc->addr, sizeof(*desc_ev));
if (desc_ev == NULL) {
SPDK_ERRLOG("Controller %s: Eventq descriptor at index %"PRIu16" points to unmapped guest memory address %p.\n",
svdev->vdev.name, req, (void *)(uintptr_t)desc->addr);
@ -319,7 +319,7 @@ process_ctrl_request(struct spdk_vhost_scsi_task *task)
goto out;
}
ctrl_req = spdk_vhost_gpa_to_vva(vdev, desc->addr);
ctrl_req = spdk_vhost_gpa_to_vva(vdev, desc->addr, sizeof(*ctrl_req));
SPDK_DEBUGLOG(SPDK_LOG_VHOST_SCSI_QUEUE,
"Processing controlq descriptor: desc %d/%p, desc_addr %p, len %d, flags %d, last_used_idx %d; kickfd %d; size %d\n",
@ -340,7 +340,7 @@ process_ctrl_request(struct spdk_vhost_scsi_task *task)
/* Process the TMF request */
switch (ctrl_req->type) {
case VIRTIO_SCSI_T_TMF:
task->tmf_resp = spdk_vhost_gpa_to_vva(vdev, desc->addr);
task->tmf_resp = spdk_vhost_gpa_to_vva(vdev, desc->addr, sizeof(*task->tmf_resp));
if (spdk_unlikely(desc->len < sizeof(struct virtio_scsi_ctrl_tmf_resp) || task->tmf_resp == NULL)) {
SPDK_ERRLOG("%s: TMF response descriptor at index %d points to invalid guest memory region\n",
vdev->name, task->req_idx);
@ -369,7 +369,7 @@ process_ctrl_request(struct spdk_vhost_scsi_task *task)
break;
case VIRTIO_SCSI_T_AN_QUERY:
case VIRTIO_SCSI_T_AN_SUBSCRIBE: {
an_resp = spdk_vhost_gpa_to_vva(vdev, desc->addr);
an_resp = spdk_vhost_gpa_to_vva(vdev, desc->addr, sizeof(*an_resp));
if (spdk_unlikely(desc->len < sizeof(struct virtio_scsi_ctrl_an_resp) || an_resp == NULL)) {
SPDK_WARNLOG("%s: Asynchronous response descriptor points to invalid guest memory region\n",
vdev->name);
@ -418,7 +418,7 @@ task_data_setup(struct spdk_vhost_scsi_task *task,
goto invalid_task;
}
*req = spdk_vhost_gpa_to_vva(vdev, desc->addr);
*req = spdk_vhost_gpa_to_vva(vdev, desc->addr, sizeof(**req));
if (spdk_unlikely(*req == NULL)) {
SPDK_WARNLOG("%s: Request descriptor at index %d points to invalid guest memory region\n",
vdev->name, task->req_idx);
@ -440,7 +440,7 @@ task_data_setup(struct spdk_vhost_scsi_task *task,
/*
* FROM_DEV (READ): [RD_req][WR_resp][WR_buf0]...[WR_bufN]
*/
task->resp = spdk_vhost_gpa_to_vva(vdev, desc->addr);
task->resp = spdk_vhost_gpa_to_vva(vdev, desc->addr, sizeof(*task->resp));
if (spdk_unlikely(desc->len < sizeof(struct virtio_scsi_cmd_resp) || task->resp == NULL)) {
SPDK_WARNLOG("%s: Response descriptor at index %d points to invalid guest memory region\n",
vdev->name, task->req_idx);
@ -510,7 +510,7 @@ task_data_setup(struct spdk_vhost_scsi_task *task,
}
}
task->resp = spdk_vhost_gpa_to_vva(vdev, desc->addr);
task->resp = spdk_vhost_gpa_to_vva(vdev, desc->addr, sizeof(*task->resp));
if (spdk_unlikely(desc->len < sizeof(struct virtio_scsi_cmd_resp) || task->resp == NULL)) {
SPDK_WARNLOG("%s: Response descriptor at index %d points to invalid guest memory region\n",
vdev->name, task->req_idx);

3
test/unit/lib/vhost/test_vhost.c
View File

@ -87,7 +87,8 @@ DEFINE_STUB_V(spdk_vhost_call_external_event, (const char *ctrlr_name, spdk_vhos
DEFINE_STUB(spdk_vhost_dev_has_feature, bool, (struct spdk_vhost_dev *vdev, unsigned feature_id),
false);
DEFINE_STUB(spdk_vhost_vring_desc_has_next, bool, (struct vring_desc *cur_desc), false);
DEFINE_STUB_VP(spdk_vhost_gpa_to_vva, (struct spdk_vhost_dev *vdev, uint64_t addr), {0});
DEFINE_STUB_VP(spdk_vhost_gpa_to_vva, (struct spdk_vhost_dev *vdev, uint64_t addr, uint64_t len),
{0});
DEFINE_STUB(spdk_scsi_dev_get_id, int, (const struct spdk_scsi_dev *dev), {0});
DEFINE_STUB(spdk_json_write_null, int, (struct spdk_json_write_ctx *w), 0);
DEFINE_STUB(spdk_json_write_bool, int, (struct spdk_json_write_ctx *w, bool val), 0);