diff options
Diffstat (limited to 'vnet')
| -rw-r--r-- | vnet/vnet/devices/dpdk/dpdk.h | 1 | ||||
| -rw-r--r-- | vnet/vnet/devices/dpdk/vhost_user.c | 35 |
2 files changed, 36 insertions, 0 deletions
diff --git a/vnet/vnet/devices/dpdk/dpdk.h b/vnet/vnet/devices/dpdk/dpdk.h index 8cd344cff16..116be3632fd 100644 --- a/vnet/vnet/devices/dpdk/dpdk.h +++ b/vnet/vnet/devices/dpdk/dpdk.h @@ -170,6 +170,7 @@ typedef struct { #endif u64 region_addr[VHOST_MEMORY_MAX_NREGIONS]; u32 region_fd[VHOST_MEMORY_MAX_NREGIONS]; + u64 region_offset[VHOST_MEMORY_MAX_NREGIONS]; } dpdk_vu_intf_t; typedef void (*dpdk_flowcontrol_callback_t) (vlib_main_t *vm, diff --git a/vnet/vnet/devices/dpdk/vhost_user.c b/vnet/vnet/devices/dpdk/vhost_user.c index 92b5d0e5e02..fd1bd221062 100644 --- a/vnet/vnet/devices/dpdk/vhost_user.c +++ b/vnet/vnet/devices/dpdk/vhost_user.c @@ -527,8 +527,12 @@ dpdk_vhost_user_set_mem_table(u32 hw_if_index, vhost_user_memory_t * vum, int fd mapped_address += vum->regions[i].mmap_offset; vui->region_addr[i] = mapped_address; vui->region_fd[i] = fd[i]; + vui->region_offset[i] = vum->regions[i].mmap_offset; mem->regions[i].address_offset = mapped_address - mem->regions[i].guest_phys_address; + DBG_SOCK("map memory region %d addr 0x%lx off 0x%lx len 0x%lx", + i, vui->region_addr[i], vui->region_offset[i], mapped_size); + if (vum->regions[i].guest_phys_addr == 0) { mem->base_address = vum->regions[i].userspace_addr; mem->mapped_address = mem->regions[i].address_offset; @@ -913,6 +917,36 @@ dpdk_vhost_user_vui_register(vlib_main_t * vm, dpdk_device_t *xd) xd->vlib_sw_if_index); } +static void dpdk_unmap_all_mem_regions(dpdk_device_t * xd) +{ + int i, r; + dpdk_vu_intf_t *vui = xd->vu_intf; + struct virtio_memory * mem = xd->vu_vhost_dev.mem; + + for (i=0; i<mem->nregions; i++) { + if (vui->region_addr[i] != -1) { + + long page_sz = get_huge_page_size(vui->region_fd[i]); + + ssize_t map_sz = (mem->regions[i].memory_size + + vui->region_offset[i] + page_sz) & ~(page_sz - 1); + + r = munmap((void *)(vui->region_addr[i] - vui->region_offset[i]), map_sz); + + DBG_SOCK("unmap memory region %d addr 0x%lx off 0x%lx len 0x%lx page_sz 0x%x", + i, vui->region_addr[i], vui->region_offset[i], map_sz, page_sz); + + vui->region_addr[i]= -1; + + if (r == -1) { + clib_warning("failed to unmap memory region (errno %d)", errno); + } + close(vui->region_fd[i]); + } + } + mem->nregions = 0; +} + static inline void dpdk_vhost_user_if_disconnect(dpdk_device_t * xd) { @@ -934,6 +968,7 @@ dpdk_vhost_user_if_disconnect(dpdk_device_t * xd) vui->unix_fd = -1; vui->is_up = 0; + dpdk_unmap_all_mem_regions(xd); DBG_SOCK("interface ifindex %d disconnected", xd->vlib_sw_if_index); } |