diff options
Diffstat (limited to 'ANDROID_3.4.5/tools/virtio')
-rw-r--r-- | ANDROID_3.4.5/tools/virtio/Makefile | 12 | ||||
-rw-r--r-- | ANDROID_3.4.5/tools/virtio/linux/device.h | 2 | ||||
-rw-r--r-- | ANDROID_3.4.5/tools/virtio/linux/hrtimer.h | 0 | ||||
-rw-r--r-- | ANDROID_3.4.5/tools/virtio/linux/module.h | 0 | ||||
-rw-r--r-- | ANDROID_3.4.5/tools/virtio/linux/slab.h | 2 | ||||
-rw-r--r-- | ANDROID_3.4.5/tools/virtio/linux/virtio.h | 218 | ||||
-rw-r--r-- | ANDROID_3.4.5/tools/virtio/vhost_test/Makefile | 2 | ||||
-rw-r--r-- | ANDROID_3.4.5/tools/virtio/vhost_test/vhost_test.c | 1 | ||||
-rw-r--r-- | ANDROID_3.4.5/tools/virtio/virtio_test.c | 265 |
9 files changed, 0 insertions, 502 deletions
diff --git a/ANDROID_3.4.5/tools/virtio/Makefile b/ANDROID_3.4.5/tools/virtio/Makefile deleted file mode 100644 index d1d442ed..00000000 --- a/ANDROID_3.4.5/tools/virtio/Makefile +++ /dev/null @@ -1,12 +0,0 @@ -all: test mod -test: virtio_test -virtio_test: virtio_ring.o virtio_test.o -CFLAGS += -g -O2 -Wall -I. -I ../../usr/include/ -Wno-pointer-sign -fno-strict-overflow -MMD -vpath %.c ../../drivers/virtio -mod: - ${MAKE} -C `pwd`/../.. M=`pwd`/vhost_test -.PHONY: all test mod clean -clean: - ${RM} *.o vhost_test/*.o vhost_test/.*.cmd \ - vhost_test/Module.symvers vhost_test/modules.order *.d --include *.d diff --git a/ANDROID_3.4.5/tools/virtio/linux/device.h b/ANDROID_3.4.5/tools/virtio/linux/device.h deleted file mode 100644 index 4ad7e1df..00000000 --- a/ANDROID_3.4.5/tools/virtio/linux/device.h +++ /dev/null @@ -1,2 +0,0 @@ -#ifndef LINUX_DEVICE_H -#endif diff --git a/ANDROID_3.4.5/tools/virtio/linux/hrtimer.h b/ANDROID_3.4.5/tools/virtio/linux/hrtimer.h deleted file mode 100644 index e69de29b..00000000 --- a/ANDROID_3.4.5/tools/virtio/linux/hrtimer.h +++ /dev/null diff --git a/ANDROID_3.4.5/tools/virtio/linux/module.h b/ANDROID_3.4.5/tools/virtio/linux/module.h deleted file mode 100644 index e69de29b..00000000 --- a/ANDROID_3.4.5/tools/virtio/linux/module.h +++ /dev/null diff --git a/ANDROID_3.4.5/tools/virtio/linux/slab.h b/ANDROID_3.4.5/tools/virtio/linux/slab.h deleted file mode 100644 index 81baeac8..00000000 --- a/ANDROID_3.4.5/tools/virtio/linux/slab.h +++ /dev/null @@ -1,2 +0,0 @@ -#ifndef LINUX_SLAB_H -#endif diff --git a/ANDROID_3.4.5/tools/virtio/linux/virtio.h b/ANDROID_3.4.5/tools/virtio/linux/virtio.h deleted file mode 100644 index 7579f19e..00000000 --- a/ANDROID_3.4.5/tools/virtio/linux/virtio.h +++ /dev/null @@ -1,218 +0,0 @@ -#ifndef LINUX_VIRTIO_H -#define LINUX_VIRTIO_H - -#include <stdbool.h> -#include <stdlib.h> -#include <stddef.h> -#include <stdio.h> -#include <string.h> -#include <assert.h> - -#include <linux/types.h> -#include <errno.h> - -typedef unsigned long long dma_addr_t; - -struct scatterlist { - unsigned long page_link; - unsigned int offset; - unsigned int length; - dma_addr_t dma_address; -}; - -struct page { - unsigned long long dummy; -}; - -#define BUG_ON(__BUG_ON_cond) assert(!(__BUG_ON_cond)) - -/* Physical == Virtual */ -#define virt_to_phys(p) ((unsigned long)p) -#define phys_to_virt(a) ((void *)(unsigned long)(a)) -/* Page address: Virtual / 4K */ -#define virt_to_page(p) ((struct page*)((virt_to_phys(p) / 4096) * \ - sizeof(struct page))) -#define offset_in_page(p) (((unsigned long)p) % 4096) -#define sg_phys(sg) ((sg->page_link & ~0x3) / sizeof(struct page) * 4096 + \ - sg->offset) -static inline void sg_mark_end(struct scatterlist *sg) -{ - /* - * Set termination bit, clear potential chain bit - */ - sg->page_link |= 0x02; - sg->page_link &= ~0x01; -} -static inline void sg_init_table(struct scatterlist *sgl, unsigned int nents) -{ - memset(sgl, 0, sizeof(*sgl) * nents); - sg_mark_end(&sgl[nents - 1]); -} -static inline void sg_assign_page(struct scatterlist *sg, struct page *page) -{ - unsigned long page_link = sg->page_link & 0x3; - - /* - * In order for the low bit stealing approach to work, pages - * must be aligned at a 32-bit boundary as a minimum. - */ - BUG_ON((unsigned long) page & 0x03); - sg->page_link = page_link | (unsigned long) page; -} - -static inline void sg_set_page(struct scatterlist *sg, struct page *page, - unsigned int len, unsigned int offset) -{ - sg_assign_page(sg, page); - sg->offset = offset; - sg->length = len; -} - -static inline void sg_set_buf(struct scatterlist *sg, const void *buf, - unsigned int buflen) -{ - sg_set_page(sg, virt_to_page(buf), buflen, offset_in_page(buf)); -} - -static inline void sg_init_one(struct scatterlist *sg, const void *buf, unsigned int buflen) -{ - sg_init_table(sg, 1); - sg_set_buf(sg, buf, buflen); -} - -typedef __u16 u16; - -typedef enum { - GFP_KERNEL, - GFP_ATOMIC, -} gfp_t; -typedef enum { - IRQ_NONE, - IRQ_HANDLED -} irqreturn_t; - -static inline void *kmalloc(size_t s, gfp_t gfp) -{ - return malloc(s); -} - -static inline void kfree(void *p) -{ - free(p); -} - -#define container_of(ptr, type, member) ({ \ - const typeof( ((type *)0)->member ) *__mptr = (ptr); \ - (type *)( (char *)__mptr - offsetof(type,member) );}) - -#define uninitialized_var(x) x = x - -# ifndef likely -# define likely(x) (__builtin_expect(!!(x), 1)) -# endif -# ifndef unlikely -# define unlikely(x) (__builtin_expect(!!(x), 0)) -# endif - -#define pr_err(format, ...) fprintf (stderr, format, ## __VA_ARGS__) -#ifdef DEBUG -#define pr_debug(format, ...) fprintf (stderr, format, ## __VA_ARGS__) -#else -#define pr_debug(format, ...) do {} while (0) -#endif -#define dev_err(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__) -#define dev_warn(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__) - -/* TODO: empty stubs for now. Broken but enough for virtio_ring.c */ -#define list_add_tail(a, b) do {} while (0) -#define list_del(a) do {} while (0) - -#define BIT_WORD(nr) ((nr) / BITS_PER_LONG) -#define BITS_PER_BYTE 8 -#define BITS_PER_LONG (sizeof(long) * BITS_PER_BYTE) -#define BIT_MASK(nr) (1UL << ((nr) % BITS_PER_LONG)) -/* TODO: Not atomic as it should be: - * we don't use this for anything important. */ -static inline void clear_bit(int nr, volatile unsigned long *addr) -{ - unsigned long mask = BIT_MASK(nr); - unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr); - - *p &= ~mask; -} - -static inline int test_bit(int nr, const volatile unsigned long *addr) -{ - return 1UL & (addr[BIT_WORD(nr)] >> (nr & (BITS_PER_LONG-1))); -} - -/* The only feature we care to support */ -#define virtio_has_feature(dev, feature) \ - test_bit((feature), (dev)->features) -/* end of stubs */ - -struct virtio_device { - void *dev; - unsigned long features[1]; -}; - -struct virtqueue { - /* TODO: commented as list macros are empty stubs for now. - * Broken but enough for virtio_ring.c - * struct list_head list; */ - void (*callback)(struct virtqueue *vq); - const char *name; - struct virtio_device *vdev; - void *priv; -}; - -#define EXPORT_SYMBOL_GPL(__EXPORT_SYMBOL_GPL_name) \ - void __EXPORT_SYMBOL_GPL##__EXPORT_SYMBOL_GPL_name() { \ -} -#define MODULE_LICENSE(__MODULE_LICENSE_value) \ - const char *__MODULE_LICENSE_name = __MODULE_LICENSE_value - -#define CONFIG_SMP - -#if defined(__i386__) || defined(__x86_64__) -#define barrier() asm volatile("" ::: "memory") -#define mb() __sync_synchronize() - -#define smp_mb() mb() -# define smp_rmb() barrier() -# define smp_wmb() barrier() -/* Weak barriers should be used. If not - it's a bug */ -# define rmb() abort() -# define wmb() abort() -#else -#error Please fill in barrier macros -#endif - -/* Interfaces exported by virtio_ring. */ -int virtqueue_add_buf(struct virtqueue *vq, - struct scatterlist sg[], - unsigned int out_num, - unsigned int in_num, - void *data, - gfp_t gfp); - -void virtqueue_kick(struct virtqueue *vq); - -void *virtqueue_get_buf(struct virtqueue *vq, unsigned int *len); - -void virtqueue_disable_cb(struct virtqueue *vq); - -bool virtqueue_enable_cb(struct virtqueue *vq); - -void *virtqueue_detach_unused_buf(struct virtqueue *vq); -struct virtqueue *vring_new_virtqueue(unsigned int num, - unsigned int vring_align, - struct virtio_device *vdev, - bool weak_barriers, - void *pages, - void (*notify)(struct virtqueue *vq), - void (*callback)(struct virtqueue *vq), - const char *name); -void vring_del_virtqueue(struct virtqueue *vq); - -#endif diff --git a/ANDROID_3.4.5/tools/virtio/vhost_test/Makefile b/ANDROID_3.4.5/tools/virtio/vhost_test/Makefile deleted file mode 100644 index a1d35b81..00000000 --- a/ANDROID_3.4.5/tools/virtio/vhost_test/Makefile +++ /dev/null @@ -1,2 +0,0 @@ -obj-m += vhost_test.o -EXTRA_CFLAGS += -Idrivers/vhost diff --git a/ANDROID_3.4.5/tools/virtio/vhost_test/vhost_test.c b/ANDROID_3.4.5/tools/virtio/vhost_test/vhost_test.c deleted file mode 100644 index 18735189..00000000 --- a/ANDROID_3.4.5/tools/virtio/vhost_test/vhost_test.c +++ /dev/null @@ -1 +0,0 @@ -#include "test.c" diff --git a/ANDROID_3.4.5/tools/virtio/virtio_test.c b/ANDROID_3.4.5/tools/virtio/virtio_test.c deleted file mode 100644 index 6bf95f99..00000000 --- a/ANDROID_3.4.5/tools/virtio/virtio_test.c +++ /dev/null @@ -1,265 +0,0 @@ -#define _GNU_SOURCE -#include <getopt.h> -#include <string.h> -#include <poll.h> -#include <sys/eventfd.h> -#include <stdlib.h> -#include <assert.h> -#include <unistd.h> -#include <sys/ioctl.h> -#include <sys/stat.h> -#include <sys/types.h> -#include <fcntl.h> -#include <linux/vhost.h> -#include <linux/virtio.h> -#include <linux/virtio_ring.h> -#include "../../drivers/vhost/test.h" - -struct vq_info { - int kick; - int call; - int num; - int idx; - void *ring; - /* copy used for control */ - struct vring vring; - struct virtqueue *vq; -}; - -struct vdev_info { - struct virtio_device vdev; - int control; - struct pollfd fds[1]; - struct vq_info vqs[1]; - int nvqs; - void *buf; - size_t buf_size; - struct vhost_memory *mem; -}; - -void vq_notify(struct virtqueue *vq) -{ - struct vq_info *info = vq->priv; - unsigned long long v = 1; - int r; - r = write(info->kick, &v, sizeof v); - assert(r == sizeof v); -} - -void vq_callback(struct virtqueue *vq) -{ -} - - -void vhost_vq_setup(struct vdev_info *dev, struct vq_info *info) -{ - struct vhost_vring_state state = { .index = info->idx }; - struct vhost_vring_file file = { .index = info->idx }; - unsigned long long features = dev->vdev.features[0]; - struct vhost_vring_addr addr = { - .index = info->idx, - .desc_user_addr = (uint64_t)(unsigned long)info->vring.desc, - .avail_user_addr = (uint64_t)(unsigned long)info->vring.avail, - .used_user_addr = (uint64_t)(unsigned long)info->vring.used, - }; - int r; - r = ioctl(dev->control, VHOST_SET_FEATURES, &features); - assert(r >= 0); - state.num = info->vring.num; - r = ioctl(dev->control, VHOST_SET_VRING_NUM, &state); - assert(r >= 0); - state.num = 0; - r = ioctl(dev->control, VHOST_SET_VRING_BASE, &state); - assert(r >= 0); - r = ioctl(dev->control, VHOST_SET_VRING_ADDR, &addr); - assert(r >= 0); - file.fd = info->kick; - r = ioctl(dev->control, VHOST_SET_VRING_KICK, &file); - assert(r >= 0); - file.fd = info->call; - r = ioctl(dev->control, VHOST_SET_VRING_CALL, &file); - assert(r >= 0); -} - -static void vq_info_add(struct vdev_info *dev, int num) -{ - struct vq_info *info = &dev->vqs[dev->nvqs]; - int r; - info->idx = dev->nvqs; - info->kick = eventfd(0, EFD_NONBLOCK); - info->call = eventfd(0, EFD_NONBLOCK); - r = posix_memalign(&info->ring, 4096, vring_size(num, 4096)); - assert(r >= 0); - memset(info->ring, 0, vring_size(num, 4096)); - vring_init(&info->vring, num, info->ring, 4096); - info->vq = vring_new_virtqueue(info->vring.num, 4096, &dev->vdev, - true, info->ring, - vq_notify, vq_callback, "test"); - assert(info->vq); - info->vq->priv = info; - vhost_vq_setup(dev, info); - dev->fds[info->idx].fd = info->call; - dev->fds[info->idx].events = POLLIN; - dev->nvqs++; -} - -static void vdev_info_init(struct vdev_info* dev, unsigned long long features) -{ - int r; - memset(dev, 0, sizeof *dev); - dev->vdev.features[0] = features; - dev->vdev.features[1] = features >> 32; - dev->buf_size = 1024; - dev->buf = malloc(dev->buf_size); - assert(dev->buf); - dev->control = open("/dev/vhost-test", O_RDWR); - assert(dev->control >= 0); - r = ioctl(dev->control, VHOST_SET_OWNER, NULL); - assert(r >= 0); - dev->mem = malloc(offsetof(struct vhost_memory, regions) + - sizeof dev->mem->regions[0]); - assert(dev->mem); - memset(dev->mem, 0, offsetof(struct vhost_memory, regions) + - sizeof dev->mem->regions[0]); - dev->mem->nregions = 1; - dev->mem->regions[0].guest_phys_addr = (long)dev->buf; - dev->mem->regions[0].userspace_addr = (long)dev->buf; - dev->mem->regions[0].memory_size = dev->buf_size; - r = ioctl(dev->control, VHOST_SET_MEM_TABLE, dev->mem); - assert(r >= 0); -} - -/* TODO: this is pretty bad: we get a cache line bounce - * for the wait queue on poll and another one on read, - * plus the read which is there just to clear the - * current state. */ -static void wait_for_interrupt(struct vdev_info *dev) -{ - int i; - unsigned long long val; - poll(dev->fds, dev->nvqs, -1); - for (i = 0; i < dev->nvqs; ++i) - if (dev->fds[i].revents & POLLIN) { - read(dev->fds[i].fd, &val, sizeof val); - } -} - -static void run_test(struct vdev_info *dev, struct vq_info *vq, int bufs) -{ - struct scatterlist sl; - long started = 0, completed = 0; - long completed_before; - int r, test = 1; - unsigned len; - long long spurious = 0; - r = ioctl(dev->control, VHOST_TEST_RUN, &test); - assert(r >= 0); - for (;;) { - virtqueue_disable_cb(vq->vq); - completed_before = completed; - do { - if (started < bufs) { - sg_init_one(&sl, dev->buf, dev->buf_size); - r = virtqueue_add_buf(vq->vq, &sl, 1, 0, - dev->buf + started, - GFP_ATOMIC); - if (likely(r >= 0)) { - ++started; - virtqueue_kick(vq->vq); - } - } else - r = -1; - - /* Flush out completed bufs if any */ - if (virtqueue_get_buf(vq->vq, &len)) { - ++completed; - r = 0; - } - - } while (r >= 0); - if (completed == completed_before) - ++spurious; - assert(completed <= bufs); - assert(started <= bufs); - if (completed == bufs) - break; - if (virtqueue_enable_cb(vq->vq)) { - wait_for_interrupt(dev); - } - } - test = 0; - r = ioctl(dev->control, VHOST_TEST_RUN, &test); - assert(r >= 0); - fprintf(stderr, "spurious wakeus: 0x%llx\n", spurious); -} - -const char optstring[] = "h"; -const struct option longopts[] = { - { - .name = "help", - .val = 'h', - }, - { - .name = "event-idx", - .val = 'E', - }, - { - .name = "no-event-idx", - .val = 'e', - }, - { - .name = "indirect", - .val = 'I', - }, - { - .name = "no-indirect", - .val = 'i', - }, - { - } -}; - -static void help() -{ - fprintf(stderr, "Usage: virtio_test [--help]" - " [--no-indirect]" - " [--no-event-idx]" - "\n"); -} - -int main(int argc, char **argv) -{ - struct vdev_info dev; - unsigned long long features = (1ULL << VIRTIO_RING_F_INDIRECT_DESC) | - (1ULL << VIRTIO_RING_F_EVENT_IDX); - int o; - - for (;;) { - o = getopt_long(argc, argv, optstring, longopts, NULL); - switch (o) { - case -1: - goto done; - case '?': - help(); - exit(2); - case 'e': - features &= ~(1ULL << VIRTIO_RING_F_EVENT_IDX); - break; - case 'h': - help(); - goto done; - case 'i': - features &= ~(1ULL << VIRTIO_RING_F_INDIRECT_DESC); - break; - default: - assert(0); - break; - } - } - -done: - vdev_info_init(&dev, features); - vq_info_add(&dev, 256); - run_test(&dev, &dev.vqs[0], 0x100000); - return 0; -} |