/* SPDX-License-Identifier: BSD-3-Clause
- * Copyright(c) 2010-2014 Intel Corporation
+ * Copyright(c) 2010-2018 Intel Corporation
*/
#include <inttypes.h>
/* check start VA */
if (addr < map->addr || addr >= map_va_end)
continue;
- /* check if IOVA end is within boundaries */
- if (va_end <= map->addr || va_end >= map_va_end)
+ /* check if VA end is within boundaries */
+ if (va_end <= map->addr || va_end > map_va_end)
continue;
- /* check start PA */
+ /* check start IOVA */
if (iova < map->iova || iova >= map_iova_end)
continue;
/* check if IOVA end is within boundaries */
- if (iova_end <= map->iova || iova_end >= map_iova_end)
+ if (iova_end <= map->iova || iova_end > map_iova_end)
continue;
/* we've found our map */
}
int
-vfio_get_group_fd(int iommu_group_no)
+rte_vfio_get_group_fd(int iommu_group_num)
{
int i;
int vfio_group_fd;
char filename[PATH_MAX];
struct vfio_group *cur_grp;
+ struct rte_mp_msg mp_req, *mp_rep;
+ struct rte_mp_reply mp_reply;
+ struct timespec ts = {.tv_sec = 5, .tv_nsec = 0};
+ struct vfio_mp_param *p = (struct vfio_mp_param *)mp_req.param;
/* check if we already have the group descriptor open */
for (i = 0; i < VFIO_MAX_GROUPS; i++)
- if (vfio_cfg.vfio_groups[i].group_no == iommu_group_no)
+ if (vfio_cfg.vfio_groups[i].group_num == iommu_group_num)
return vfio_cfg.vfio_groups[i].fd;
/* Lets see first if there is room for a new group */
/* Now lets get an index for the new group */
for (i = 0; i < VFIO_MAX_GROUPS; i++)
- if (vfio_cfg.vfio_groups[i].group_no == -1) {
+ if (vfio_cfg.vfio_groups[i].group_num == -1) {
cur_grp = &vfio_cfg.vfio_groups[i];
break;
}
if (internal_config.process_type == RTE_PROC_PRIMARY) {
/* try regular group format */
snprintf(filename, sizeof(filename),
- VFIO_GROUP_FMT, iommu_group_no);
+ VFIO_GROUP_FMT, iommu_group_num);
vfio_group_fd = open(filename, O_RDWR);
if (vfio_group_fd < 0) {
/* if file not found, it's not an error */
/* special case: try no-IOMMU path as well */
snprintf(filename, sizeof(filename),
- VFIO_NOIOMMU_GROUP_FMT, iommu_group_no);
+ VFIO_NOIOMMU_GROUP_FMT,
+ iommu_group_num);
vfio_group_fd = open(filename, O_RDWR);
if (vfio_group_fd < 0) {
if (errno != ENOENT) {
/* noiommu group found */
}
- cur_grp->group_no = iommu_group_no;
+ cur_grp->group_num = iommu_group_num;
cur_grp->fd = vfio_group_fd;
vfio_cfg.vfio_active_groups++;
return vfio_group_fd;
}
/* if we're in a secondary process, request group fd from the primary
- * process via our socket
+ * process via mp channel.
*/
- else {
- int socket_fd, ret;
-
- socket_fd = vfio_mp_sync_connect_to_primary();
-
- if (socket_fd < 0) {
- RTE_LOG(ERR, EAL, " cannot connect to primary process!\n");
- return -1;
- }
- if (vfio_mp_sync_send_request(socket_fd, SOCKET_REQ_GROUP) < 0) {
- RTE_LOG(ERR, EAL, " cannot request container fd!\n");
- close(socket_fd);
- return -1;
- }
- if (vfio_mp_sync_send_request(socket_fd, iommu_group_no) < 0) {
- RTE_LOG(ERR, EAL, " cannot send group number!\n");
- close(socket_fd);
- return -1;
- }
- ret = vfio_mp_sync_receive_request(socket_fd);
- switch (ret) {
- case SOCKET_NO_FD:
- close(socket_fd);
- return 0;
- case SOCKET_OK:
- vfio_group_fd = vfio_mp_sync_receive_fd(socket_fd);
- /* if we got the fd, store it and return it */
- if (vfio_group_fd > 0) {
- close(socket_fd);
- cur_grp->group_no = iommu_group_no;
- cur_grp->fd = vfio_group_fd;
- vfio_cfg.vfio_active_groups++;
- return vfio_group_fd;
- }
- /* fall-through on error */
- default:
- RTE_LOG(ERR, EAL, " cannot get container fd!\n");
- close(socket_fd);
- return -1;
+ p->req = SOCKET_REQ_GROUP;
+ p->group_num = iommu_group_num;
+ strcpy(mp_req.name, EAL_VFIO_MP);
+ mp_req.len_param = sizeof(*p);
+ mp_req.num_fds = 0;
+
+ vfio_group_fd = -1;
+ if (rte_mp_request_sync(&mp_req, &mp_reply, &ts) == 0 &&
+ mp_reply.nb_received == 1) {
+ mp_rep = &mp_reply.msgs[0];
+ p = (struct vfio_mp_param *)mp_rep->param;
+ if (p->result == SOCKET_OK && mp_rep->num_fds == 1) {
+ cur_grp->group_num = iommu_group_num;
+ vfio_group_fd = mp_rep->fds[0];
+ cur_grp->fd = vfio_group_fd;
+ vfio_cfg.vfio_active_groups++;
+ } else if (p->result == SOCKET_NO_FD) {
+ RTE_LOG(ERR, EAL, " bad VFIO group fd\n");
+ vfio_group_fd = 0;
}
+ free(mp_reply.msgs);
}
- return -1;
+
+ if (vfio_group_fd < 0)
+ RTE_LOG(ERR, EAL, " cannot request group fd\n");
+ return vfio_group_fd;
}
rte_vfio_clear_group(int vfio_group_fd)
{
int i;
- int socket_fd, ret;
+ struct rte_mp_msg mp_req, *mp_rep;
+ struct rte_mp_reply mp_reply;
+ struct timespec ts = {.tv_sec = 5, .tv_nsec = 0};
+ struct vfio_mp_param *p = (struct vfio_mp_param *)mp_req.param;
if (internal_config.process_type == RTE_PROC_PRIMARY) {
i = get_vfio_group_idx(vfio_group_fd);
if (i < 0)
return -1;
- vfio_cfg.vfio_groups[i].group_no = -1;
+ vfio_cfg.vfio_groups[i].group_num = -1;
vfio_cfg.vfio_groups[i].fd = -1;
vfio_cfg.vfio_groups[i].devices = 0;
vfio_cfg.vfio_active_groups--;
return 0;
}
- /* This is just for SECONDARY processes */
- socket_fd = vfio_mp_sync_connect_to_primary();
-
- if (socket_fd < 0) {
- RTE_LOG(ERR, EAL, " cannot connect to primary process!\n");
- return -1;
- }
-
- if (vfio_mp_sync_send_request(socket_fd, SOCKET_CLR_GROUP) < 0) {
- RTE_LOG(ERR, EAL, " cannot request container fd!\n");
- close(socket_fd);
- return -1;
- }
+ p->req = SOCKET_CLR_GROUP;
+ p->group_num = vfio_group_fd;
+ strcpy(mp_req.name, EAL_VFIO_MP);
+ mp_req.len_param = sizeof(*p);
+ mp_req.num_fds = 0;
+
+ if (rte_mp_request_sync(&mp_req, &mp_reply, &ts) == 0 &&
+ mp_reply.nb_received == 1) {
+ mp_rep = &mp_reply.msgs[0];
+ p = (struct vfio_mp_param *)mp_rep->param;
+ if (p->result == SOCKET_OK) {
+ free(mp_reply.msgs);
+ return 0;
+ } else if (p->result == SOCKET_NO_FD)
+ RTE_LOG(ERR, EAL, " BAD VFIO group fd!\n");
+ else
+ RTE_LOG(ERR, EAL, " no such VFIO group fd!\n");
- if (vfio_mp_sync_send_request(socket_fd, vfio_group_fd) < 0) {
- RTE_LOG(ERR, EAL, " cannot send group fd!\n");
- close(socket_fd);
- return -1;
+ free(mp_reply.msgs);
}
- ret = vfio_mp_sync_receive_request(socket_fd);
- switch (ret) {
- case SOCKET_NO_FD:
- RTE_LOG(ERR, EAL, " BAD VFIO group fd!\n");
- close(socket_fd);
- break;
- case SOCKET_OK:
- close(socket_fd);
- return 0;
- case SOCKET_ERR:
- RTE_LOG(ERR, EAL, " Socket error\n");
- close(socket_fd);
- break;
- default:
- RTE_LOG(ERR, EAL, " UNKNOWN reply, %d\n", ret);
- close(socket_fd);
- }
return -1;
}
.argsz = sizeof(group_status)
};
int vfio_group_fd;
- int iommu_group_no;
+ int iommu_group_num;
int i, ret;
/* get group number */
- ret = vfio_get_group_no(sysfs_base, dev_addr, &iommu_group_no);
+ ret = rte_vfio_get_group_num(sysfs_base, dev_addr, &iommu_group_num);
if (ret == 0) {
RTE_LOG(WARNING, EAL, " %s not managed by VFIO driver, skipping\n",
dev_addr);
return -1;
/* get the actual group fd */
- vfio_group_fd = vfio_get_group_fd(iommu_group_no);
+ vfio_group_fd = rte_vfio_get_group_fd(iommu_group_num);
if (vfio_group_fd < 0)
return -1;
* functionality.
*/
if (internal_config.process_type == RTE_PROC_PRIMARY &&
- vfio_cfg.vfio_active_groups == 1) {
+ vfio_cfg.vfio_active_groups == 1 &&
+ vfio_group_device_count(vfio_group_fd) == 0) {
const struct vfio_iommu_type *t;
/* select an IOMMU type which we will be using */
.argsz = sizeof(group_status)
};
int vfio_group_fd;
- int iommu_group_no;
+ int iommu_group_num;
int ret;
/* we don't want any DMA mapping messages to come while we're detaching
rte_rwlock_read_lock(mem_lock);
/* get group number */
- ret = vfio_get_group_no(sysfs_base, dev_addr, &iommu_group_no);
+ ret = rte_vfio_get_group_num(sysfs_base, dev_addr, &iommu_group_num);
if (ret <= 0) {
RTE_LOG(WARNING, EAL, " %s not managed by VFIO driver\n",
dev_addr);
}
/* get the actual group fd */
- vfio_group_fd = vfio_get_group_fd(iommu_group_no);
+ vfio_group_fd = rte_vfio_get_group_fd(iommu_group_num);
if (vfio_group_fd <= 0) {
- RTE_LOG(INFO, EAL, "vfio_get_group_fd failed for %s\n",
+ RTE_LOG(INFO, EAL, "rte_vfio_get_group_fd failed for %s\n",
dev_addr);
ret = -1;
goto out;
for (i = 0; i < VFIO_MAX_GROUPS; i++) {
vfio_cfg.vfio_groups[i].fd = -1;
- vfio_cfg.vfio_groups[i].group_no = -1;
+ vfio_cfg.vfio_groups[i].group_num = -1;
vfio_cfg.vfio_groups[i].devices = 0;
}
return 0;
}
- vfio_cfg.vfio_container_fd = vfio_get_container_fd();
+ vfio_cfg.vfio_container_fd = rte_vfio_get_container_fd();
/* check if we have VFIO driver enabled */
if (vfio_cfg.vfio_container_fd != -1) {
}
int
-vfio_get_container_fd(void)
+rte_vfio_get_container_fd(void)
{
int ret, vfio_container_fd;
+ struct rte_mp_msg mp_req, *mp_rep;
+ struct rte_mp_reply mp_reply;
+ struct timespec ts = {.tv_sec = 5, .tv_nsec = 0};
+ struct vfio_mp_param *p = (struct vfio_mp_param *)mp_req.param;
+
/* if we're in a primary process, try to open the container */
if (internal_config.process_type == RTE_PROC_PRIMARY) {
}
return vfio_container_fd;
- } else {
- /*
- * if we're in a secondary process, request container fd from the
- * primary process via our socket
- */
- int socket_fd;
-
- socket_fd = vfio_mp_sync_connect_to_primary();
- if (socket_fd < 0) {
- RTE_LOG(ERR, EAL, " cannot connect to primary process!\n");
- return -1;
- }
- if (vfio_mp_sync_send_request(socket_fd, SOCKET_REQ_CONTAINER) < 0) {
- RTE_LOG(ERR, EAL, " cannot request container fd!\n");
- close(socket_fd);
- return -1;
- }
- vfio_container_fd = vfio_mp_sync_receive_fd(socket_fd);
- if (vfio_container_fd < 0) {
- RTE_LOG(ERR, EAL, " cannot get container fd!\n");
- close(socket_fd);
- return -1;
+ }
+ /*
+ * if we're in a secondary process, request container fd from the
+ * primary process via mp channel
+ */
+ p->req = SOCKET_REQ_CONTAINER;
+ strcpy(mp_req.name, EAL_VFIO_MP);
+ mp_req.len_param = sizeof(*p);
+ mp_req.num_fds = 0;
+
+ vfio_container_fd = -1;
+ if (rte_mp_request_sync(&mp_req, &mp_reply, &ts) == 0 &&
+ mp_reply.nb_received == 1) {
+ mp_rep = &mp_reply.msgs[0];
+ p = (struct vfio_mp_param *)mp_rep->param;
+ if (p->result == SOCKET_OK && mp_rep->num_fds == 1) {
+ free(mp_reply.msgs);
+ return mp_rep->fds[0];
}
- close(socket_fd);
- return vfio_container_fd;
+ free(mp_reply.msgs);
}
+ RTE_LOG(ERR, EAL, " cannot request container fd\n");
return -1;
}
int
-vfio_get_group_no(const char *sysfs_base,
- const char *dev_addr, int *iommu_group_no)
+rte_vfio_get_group_num(const char *sysfs_base,
+ const char *dev_addr, int *iommu_group_num)
{
char linkname[PATH_MAX];
char filename[PATH_MAX];
errno = 0;
group_tok = tok[ret - 1];
end = group_tok;
- *iommu_group_no = strtol(group_tok, &end, 10);
+ *iommu_group_num = strtol(group_tok, &end, 10);
if ((end != group_tok && *end != '\0') || errno != 0) {
RTE_LOG(ERR, EAL, " %s error parsing IOMMU number!\n", dev_addr);
return -1;
return -1;
}
-#endif
+int
+rte_vfio_setup_device(__rte_unused const char *sysfs_base,
+ __rte_unused const char *dev_addr,
+ __rte_unused int *vfio_dev_fd,
+ __rte_unused struct vfio_device_info *device_info)
+{
+ return -1;
+}
+
+int
+rte_vfio_release_device(__rte_unused const char *sysfs_base,
+ __rte_unused const char *dev_addr, __rte_unused int fd)
+{
+ return -1;
+}
+
+int
+rte_vfio_enable(__rte_unused const char *modname)
+{
+ return -1;
+}
+
+int
+rte_vfio_is_enabled(__rte_unused const char *modname)
+{
+ return -1;
+}
+
+int
+rte_vfio_noiommu_is_enabled(void)
+{
+ return -1;
+}
+
+int
+rte_vfio_clear_group(__rte_unused int vfio_group_fd)
+{
+ return -1;
+}
+
+int __rte_experimental
+rte_vfio_get_group_num(__rte_unused const char *sysfs_base,
+ __rte_unused const char *dev_addr,
+ __rte_unused int *iommu_group_num)
+{
+ return -1;
+}
+
+int __rte_experimental
+rte_vfio_get_container_fd(void)
+{
+ return -1;
+}
+
+int __rte_experimental
+rte_vfio_get_group_fd(__rte_unused int iommu_group_num)
+{
+ return -1;
+}
+
+#endif /* VFIO_PRESENT */
git.droids-corp.org / dpdk.git / blobdiff