diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-06 15:30:19 -0500 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-06 15:30:19 -0500 |
commit | abb359450f20c32ae03039d8736f12b1d561caf5 (patch) | |
tree | 6e8723885feb66a138f19f0ff31615dc13a8d859 /tools | |
parent | cb600d2f83c854ec3d6660063e4466431999489b (diff) | |
parent | 4e3dbdb1392a83bd21a6ff8f6bc785495058d37c (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1436 commits)
cassini: Use local-mac-address prom property for Cassini MAC address
net: remove the duplicate #ifdef __KERNEL__
net: bridge: check the length of skb after nf_bridge_maybe_copy_header()
netconsole: clarify stopping message
netconsole: don't announce stopping if nothing happened
cnic: Fix the type field in SPQ messages
netfilter: fix export secctx error handling
netfilter: fix the race when initializing nf_ct_expect_hash_rnd
ipv4: IP defragmentation must be ECN aware
net: r6040: Return proper error for r6040_init_one
dcb: use after free in dcb_flushapp()
dcb: unlock on error in dcbnl_ieee_get()
net: ixp4xx_eth: Return proper error for eth_init_one
include/linux/if_ether.h: Add #define ETH_P_LINK_CTL for HPNA and wlan local tunnel
net: add POLLPRI to sock_def_readable()
af_unix: Avoid socket->sk NULL OOPS in stream connect security hooks.
net_sched: pfifo_head_drop problem
mac80211: remove stray extern
mac80211: implement off-channel TX using hw r-o-c offload
mac80211: implement hardware offload for remain-on-channel
...
Diffstat (limited to 'tools')
-rw-r--r-- | tools/virtio/Makefile | 12 | ||||
-rw-r--r-- | tools/virtio/linux/device.h | 2 | ||||
-rw-r--r-- | tools/virtio/linux/slab.h | 2 | ||||
-rw-r--r-- | tools/virtio/linux/virtio.h | 223 | ||||
-rw-r--r-- | tools/virtio/vhost_test/Makefile | 2 | ||||
-rw-r--r-- | tools/virtio/vhost_test/vhost_test.c | 1 | ||||
-rw-r--r-- | tools/virtio/virtio_test.c | 248 |
7 files changed, 490 insertions, 0 deletions
diff --git a/tools/virtio/Makefile b/tools/virtio/Makefile new file mode 100644 index 000000000000..d1d442ed106a --- /dev/null +++ b/tools/virtio/Makefile | |||
@@ -0,0 +1,12 @@ | |||
1 | all: test mod | ||
2 | test: virtio_test | ||
3 | virtio_test: virtio_ring.o virtio_test.o | ||
4 | CFLAGS += -g -O2 -Wall -I. -I ../../usr/include/ -Wno-pointer-sign -fno-strict-overflow -MMD | ||
5 | vpath %.c ../../drivers/virtio | ||
6 | mod: | ||
7 | ${MAKE} -C `pwd`/../.. M=`pwd`/vhost_test | ||
8 | .PHONY: all test mod clean | ||
9 | clean: | ||
10 | ${RM} *.o vhost_test/*.o vhost_test/.*.cmd \ | ||
11 | vhost_test/Module.symvers vhost_test/modules.order *.d | ||
12 | -include *.d | ||
diff --git a/tools/virtio/linux/device.h b/tools/virtio/linux/device.h new file mode 100644 index 000000000000..4ad7e1df0db5 --- /dev/null +++ b/tools/virtio/linux/device.h | |||
@@ -0,0 +1,2 @@ | |||
1 | #ifndef LINUX_DEVICE_H | ||
2 | #endif | ||
diff --git a/tools/virtio/linux/slab.h b/tools/virtio/linux/slab.h new file mode 100644 index 000000000000..81baeac8ae40 --- /dev/null +++ b/tools/virtio/linux/slab.h | |||
@@ -0,0 +1,2 @@ | |||
1 | #ifndef LINUX_SLAB_H | ||
2 | #endif | ||
diff --git a/tools/virtio/linux/virtio.h b/tools/virtio/linux/virtio.h new file mode 100644 index 000000000000..669bcdd45805 --- /dev/null +++ b/tools/virtio/linux/virtio.h | |||
@@ -0,0 +1,223 @@ | |||
1 | #ifndef LINUX_VIRTIO_H | ||
2 | #define LINUX_VIRTIO_H | ||
3 | |||
4 | #include <stdbool.h> | ||
5 | #include <stdlib.h> | ||
6 | #include <stddef.h> | ||
7 | #include <stdio.h> | ||
8 | #include <string.h> | ||
9 | #include <assert.h> | ||
10 | |||
11 | #include <linux/types.h> | ||
12 | #include <errno.h> | ||
13 | |||
14 | typedef unsigned long long dma_addr_t; | ||
15 | |||
16 | struct scatterlist { | ||
17 | unsigned long page_link; | ||
18 | unsigned int offset; | ||
19 | unsigned int length; | ||
20 | dma_addr_t dma_address; | ||
21 | }; | ||
22 | |||
23 | struct page { | ||
24 | unsigned long long dummy; | ||
25 | }; | ||
26 | |||
27 | #define BUG_ON(__BUG_ON_cond) assert(!(__BUG_ON_cond)) | ||
28 | |||
29 | /* Physical == Virtual */ | ||
30 | #define virt_to_phys(p) ((unsigned long)p) | ||
31 | #define phys_to_virt(a) ((void *)(unsigned long)(a)) | ||
32 | /* Page address: Virtual / 4K */ | ||
33 | #define virt_to_page(p) ((struct page*)((virt_to_phys(p) / 4096) * \ | ||
34 | sizeof(struct page))) | ||
35 | #define offset_in_page(p) (((unsigned long)p) % 4096) | ||
36 | #define sg_phys(sg) ((sg->page_link & ~0x3) / sizeof(struct page) * 4096 + \ | ||
37 | sg->offset) | ||
38 | static inline void sg_mark_end(struct scatterlist *sg) | ||
39 | { | ||
40 | /* | ||
41 | * Set termination bit, clear potential chain bit | ||
42 | */ | ||
43 | sg->page_link |= 0x02; | ||
44 | sg->page_link &= ~0x01; | ||
45 | } | ||
46 | static inline void sg_init_table(struct scatterlist *sgl, unsigned int nents) | ||
47 | { | ||
48 | memset(sgl, 0, sizeof(*sgl) * nents); | ||
49 | sg_mark_end(&sgl[nents - 1]); | ||
50 | } | ||
51 | static inline void sg_assign_page(struct scatterlist *sg, struct page *page) | ||
52 | { | ||
53 | unsigned long page_link = sg->page_link & 0x3; | ||
54 | |||
55 | /* | ||
56 | * In order for the low bit stealing approach to work, pages | ||
57 | * must be aligned at a 32-bit boundary as a minimum. | ||
58 | */ | ||
59 | BUG_ON((unsigned long) page & 0x03); | ||
60 | sg->page_link = page_link | (unsigned long) page; | ||
61 | } | ||
62 | |||
63 | static inline void sg_set_page(struct scatterlist *sg, struct page *page, | ||
64 | unsigned int len, unsigned int offset) | ||
65 | { | ||
66 | sg_assign_page(sg, page); | ||
67 | sg->offset = offset; | ||
68 | sg->length = len; | ||
69 | } | ||
70 | |||
71 | static inline void sg_set_buf(struct scatterlist *sg, const void *buf, | ||
72 | unsigned int buflen) | ||
73 | { | ||
74 | sg_set_page(sg, virt_to_page(buf), buflen, offset_in_page(buf)); | ||
75 | } | ||
76 | |||
77 | static inline void sg_init_one(struct scatterlist *sg, const void *buf, unsigned int buflen) | ||
78 | { | ||
79 | sg_init_table(sg, 1); | ||
80 | sg_set_buf(sg, buf, buflen); | ||
81 | } | ||
82 | |||
83 | typedef __u16 u16; | ||
84 | |||
85 | typedef enum { | ||
86 | GFP_KERNEL, | ||
87 | GFP_ATOMIC, | ||
88 | } gfp_t; | ||
89 | typedef enum { | ||
90 | IRQ_NONE, | ||
91 | IRQ_HANDLED | ||
92 | } irqreturn_t; | ||
93 | |||
94 | static inline void *kmalloc(size_t s, gfp_t gfp) | ||
95 | { | ||
96 | return malloc(s); | ||
97 | } | ||
98 | |||
99 | static inline void kfree(void *p) | ||
100 | { | ||
101 | free(p); | ||
102 | } | ||
103 | |||
104 | #define container_of(ptr, type, member) ({ \ | ||
105 | const typeof( ((type *)0)->member ) *__mptr = (ptr); \ | ||
106 | (type *)( (char *)__mptr - offsetof(type,member) );}) | ||
107 | |||
108 | #define uninitialized_var(x) x = x | ||
109 | |||
110 | # ifndef likely | ||
111 | # define likely(x) (__builtin_expect(!!(x), 1)) | ||
112 | # endif | ||
113 | # ifndef unlikely | ||
114 | # define unlikely(x) (__builtin_expect(!!(x), 0)) | ||
115 | # endif | ||
116 | |||
117 | #define pr_err(format, ...) fprintf (stderr, format, ## __VA_ARGS__) | ||
118 | #ifdef DEBUG | ||
119 | #define pr_debug(format, ...) fprintf (stderr, format, ## __VA_ARGS__) | ||
120 | #else | ||
121 | #define pr_debug(format, ...) do {} while (0) | ||
122 | #endif | ||
123 | #define dev_err(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__) | ||
124 | #define dev_warn(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__) | ||
125 | |||
126 | /* TODO: empty stubs for now. Broken but enough for virtio_ring.c */ | ||
127 | #define list_add_tail(a, b) do {} while (0) | ||
128 | #define list_del(a) do {} while (0) | ||
129 | |||
130 | #define BIT_WORD(nr) ((nr) / BITS_PER_LONG) | ||
131 | #define BITS_PER_BYTE 8 | ||
132 | #define BITS_PER_LONG (sizeof(long) * BITS_PER_BYTE) | ||
133 | #define BIT_MASK(nr) (1UL << ((nr) % BITS_PER_LONG)) | ||
134 | /* TODO: Not atomic as it should be: | ||
135 | * we don't use this for anything important. */ | ||
136 | static inline void clear_bit(int nr, volatile unsigned long *addr) | ||
137 | { | ||
138 | unsigned long mask = BIT_MASK(nr); | ||
139 | unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr); | ||
140 | |||
141 | *p &= ~mask; | ||
142 | } | ||
143 | |||
144 | static inline int test_bit(int nr, const volatile unsigned long *addr) | ||
145 | { | ||
146 | return 1UL & (addr[BIT_WORD(nr)] >> (nr & (BITS_PER_LONG-1))); | ||
147 | } | ||
148 | |||
149 | /* The only feature we care to support */ | ||
150 | #define virtio_has_feature(dev, feature) \ | ||
151 | test_bit((feature), (dev)->features) | ||
152 | /* end of stubs */ | ||
153 | |||
154 | struct virtio_device { | ||
155 | void *dev; | ||
156 | unsigned long features[1]; | ||
157 | }; | ||
158 | |||
159 | struct virtqueue { | ||
160 | /* TODO: commented as list macros are empty stubs for now. | ||
161 | * Broken but enough for virtio_ring.c | ||
162 | * struct list_head list; */ | ||
163 | void (*callback)(struct virtqueue *vq); | ||
164 | const char *name; | ||
165 | struct virtio_device *vdev; | ||
166 | void *priv; | ||
167 | }; | ||
168 | |||
169 | #define EXPORT_SYMBOL_GPL(__EXPORT_SYMBOL_GPL_name) \ | ||
170 | void __EXPORT_SYMBOL_GPL##__EXPORT_SYMBOL_GPL_name() { \ | ||
171 | } | ||
172 | #define MODULE_LICENSE(__MODULE_LICENSE_value) \ | ||
173 | const char *__MODULE_LICENSE_name = __MODULE_LICENSE_value | ||
174 | |||
175 | #define CONFIG_SMP | ||
176 | |||
177 | #if defined(__i386__) || defined(__x86_64__) | ||
178 | #define barrier() asm volatile("" ::: "memory") | ||
179 | #define mb() __sync_synchronize() | ||
180 | |||
181 | #define smp_mb() mb() | ||
182 | # define smp_rmb() barrier() | ||
183 | # define smp_wmb() barrier() | ||
184 | #else | ||
185 | #error Please fill in barrier macros | ||
186 | #endif | ||
187 | |||
188 | /* Interfaces exported by virtio_ring. */ | ||
189 | int virtqueue_add_buf_gfp(struct virtqueue *vq, | ||
190 | struct scatterlist sg[], | ||
191 | unsigned int out_num, | ||
192 | unsigned int in_num, | ||
193 | void *data, | ||
194 | gfp_t gfp); | ||
195 | |||
196 | static inline int virtqueue_add_buf(struct virtqueue *vq, | ||
197 | struct scatterlist sg[], | ||
198 | unsigned int out_num, | ||
199 | unsigned int in_num, | ||
200 | void *data) | ||
201 | { | ||
202 | return virtqueue_add_buf_gfp(vq, sg, out_num, in_num, data, GFP_ATOMIC); | ||
203 | } | ||
204 | |||
205 | void virtqueue_kick(struct virtqueue *vq); | ||
206 | |||
207 | void *virtqueue_get_buf(struct virtqueue *vq, unsigned int *len); | ||
208 | |||
209 | void virtqueue_disable_cb(struct virtqueue *vq); | ||
210 | |||
211 | bool virtqueue_enable_cb(struct virtqueue *vq); | ||
212 | |||
213 | void *virtqueue_detach_unused_buf(struct virtqueue *vq); | ||
214 | struct virtqueue *vring_new_virtqueue(unsigned int num, | ||
215 | unsigned int vring_align, | ||
216 | struct virtio_device *vdev, | ||
217 | void *pages, | ||
218 | void (*notify)(struct virtqueue *vq), | ||
219 | void (*callback)(struct virtqueue *vq), | ||
220 | const char *name); | ||
221 | void vring_del_virtqueue(struct virtqueue *vq); | ||
222 | |||
223 | #endif | ||
diff --git a/tools/virtio/vhost_test/Makefile b/tools/virtio/vhost_test/Makefile new file mode 100644 index 000000000000..a1d35b81b314 --- /dev/null +++ b/tools/virtio/vhost_test/Makefile | |||
@@ -0,0 +1,2 @@ | |||
1 | obj-m += vhost_test.o | ||
2 | EXTRA_CFLAGS += -Idrivers/vhost | ||
diff --git a/tools/virtio/vhost_test/vhost_test.c b/tools/virtio/vhost_test/vhost_test.c new file mode 100644 index 000000000000..18735189e62b --- /dev/null +++ b/tools/virtio/vhost_test/vhost_test.c | |||
@@ -0,0 +1 @@ | |||
#include "test.c" | |||
diff --git a/tools/virtio/virtio_test.c b/tools/virtio/virtio_test.c new file mode 100644 index 000000000000..df0c6d2c3860 --- /dev/null +++ b/tools/virtio/virtio_test.c | |||
@@ -0,0 +1,248 @@ | |||
1 | #define _GNU_SOURCE | ||
2 | #include <getopt.h> | ||
3 | #include <string.h> | ||
4 | #include <poll.h> | ||
5 | #include <sys/eventfd.h> | ||
6 | #include <stdlib.h> | ||
7 | #include <assert.h> | ||
8 | #include <unistd.h> | ||
9 | #include <sys/ioctl.h> | ||
10 | #include <sys/stat.h> | ||
11 | #include <sys/types.h> | ||
12 | #include <fcntl.h> | ||
13 | #include <linux/vhost.h> | ||
14 | #include <linux/virtio.h> | ||
15 | #include <linux/virtio_ring.h> | ||
16 | #include "../../drivers/vhost/test.h" | ||
17 | |||
18 | struct vq_info { | ||
19 | int kick; | ||
20 | int call; | ||
21 | int num; | ||
22 | int idx; | ||
23 | void *ring; | ||
24 | /* copy used for control */ | ||
25 | struct vring vring; | ||
26 | struct virtqueue *vq; | ||
27 | }; | ||
28 | |||
29 | struct vdev_info { | ||
30 | struct virtio_device vdev; | ||
31 | int control; | ||
32 | struct pollfd fds[1]; | ||
33 | struct vq_info vqs[1]; | ||
34 | int nvqs; | ||
35 | void *buf; | ||
36 | size_t buf_size; | ||
37 | struct vhost_memory *mem; | ||
38 | }; | ||
39 | |||
40 | void vq_notify(struct virtqueue *vq) | ||
41 | { | ||
42 | struct vq_info *info = vq->priv; | ||
43 | unsigned long long v = 1; | ||
44 | int r; | ||
45 | r = write(info->kick, &v, sizeof v); | ||
46 | assert(r == sizeof v); | ||
47 | } | ||
48 | |||
49 | void vq_callback(struct virtqueue *vq) | ||
50 | { | ||
51 | } | ||
52 | |||
53 | |||
54 | void vhost_vq_setup(struct vdev_info *dev, struct vq_info *info) | ||
55 | { | ||
56 | struct vhost_vring_state state = { .index = info->idx }; | ||
57 | struct vhost_vring_file file = { .index = info->idx }; | ||
58 | unsigned long long features = dev->vdev.features[0]; | ||
59 | struct vhost_vring_addr addr = { | ||
60 | .index = info->idx, | ||
61 | .desc_user_addr = (uint64_t)(unsigned long)info->vring.desc, | ||
62 | .avail_user_addr = (uint64_t)(unsigned long)info->vring.avail, | ||
63 | .used_user_addr = (uint64_t)(unsigned long)info->vring.used, | ||
64 | }; | ||
65 | int r; | ||
66 | r = ioctl(dev->control, VHOST_SET_FEATURES, &features); | ||
67 | assert(r >= 0); | ||
68 | state.num = info->vring.num; | ||
69 | r = ioctl(dev->control, VHOST_SET_VRING_NUM, &state); | ||
70 | assert(r >= 0); | ||
71 | state.num = 0; | ||
72 | r = ioctl(dev->control, VHOST_SET_VRING_BASE, &state); | ||
73 | assert(r >= 0); | ||
74 | r = ioctl(dev->control, VHOST_SET_VRING_ADDR, &addr); | ||
75 | assert(r >= 0); | ||
76 | file.fd = info->kick; | ||
77 | r = ioctl(dev->control, VHOST_SET_VRING_KICK, &file); | ||
78 | assert(r >= 0); | ||
79 | file.fd = info->call; | ||
80 | r = ioctl(dev->control, VHOST_SET_VRING_CALL, &file); | ||
81 | assert(r >= 0); | ||
82 | } | ||
83 | |||
84 | static void vq_info_add(struct vdev_info *dev, int num) | ||
85 | { | ||
86 | struct vq_info *info = &dev->vqs[dev->nvqs]; | ||
87 | int r; | ||
88 | info->idx = dev->nvqs; | ||
89 | info->kick = eventfd(0, EFD_NONBLOCK); | ||
90 | info->call = eventfd(0, EFD_NONBLOCK); | ||
91 | r = posix_memalign(&info->ring, 4096, vring_size(num, 4096)); | ||
92 | assert(r >= 0); | ||
93 | memset(info->ring, 0, vring_size(num, 4096)); | ||
94 | vring_init(&info->vring, num, info->ring, 4096); | ||
95 | info->vq = vring_new_virtqueue(info->vring.num, 4096, &dev->vdev, info->ring, | ||
96 | vq_notify, vq_callback, "test"); | ||
97 | assert(info->vq); | ||
98 | info->vq->priv = info; | ||
99 | vhost_vq_setup(dev, info); | ||
100 | dev->fds[info->idx].fd = info->call; | ||
101 | dev->fds[info->idx].events = POLLIN; | ||
102 | dev->nvqs++; | ||
103 | } | ||
104 | |||
105 | static void vdev_info_init(struct vdev_info* dev, unsigned long long features) | ||
106 | { | ||
107 | int r; | ||
108 | memset(dev, 0, sizeof *dev); | ||
109 | dev->vdev.features[0] = features; | ||
110 | dev->vdev.features[1] = features >> 32; | ||
111 | dev->buf_size = 1024; | ||
112 | dev->buf = malloc(dev->buf_size); | ||
113 | assert(dev->buf); | ||
114 | dev->control = open("/dev/vhost-test", O_RDWR); | ||
115 | assert(dev->control >= 0); | ||
116 | r = ioctl(dev->control, VHOST_SET_OWNER, NULL); | ||
117 | assert(r >= 0); | ||
118 | dev->mem = malloc(offsetof(struct vhost_memory, regions) + | ||
119 | sizeof dev->mem->regions[0]); | ||
120 | assert(dev->mem); | ||
121 | memset(dev->mem, 0, offsetof(struct vhost_memory, regions) + | ||
122 | sizeof dev->mem->regions[0]); | ||
123 | dev->mem->nregions = 1; | ||
124 | dev->mem->regions[0].guest_phys_addr = (long)dev->buf; | ||
125 | dev->mem->regions[0].userspace_addr = (long)dev->buf; | ||
126 | dev->mem->regions[0].memory_size = dev->buf_size; | ||
127 | r = ioctl(dev->control, VHOST_SET_MEM_TABLE, dev->mem); | ||
128 | assert(r >= 0); | ||
129 | } | ||
130 | |||
131 | /* TODO: this is pretty bad: we get a cache line bounce | ||
132 | * for the wait queue on poll and another one on read, | ||
133 | * plus the read which is there just to clear the | ||
134 | * current state. */ | ||
135 | static void wait_for_interrupt(struct vdev_info *dev) | ||
136 | { | ||
137 | int i; | ||
138 | unsigned long long val; | ||
139 | poll(dev->fds, dev->nvqs, -1); | ||
140 | for (i = 0; i < dev->nvqs; ++i) | ||
141 | if (dev->fds[i].revents & POLLIN) { | ||
142 | read(dev->fds[i].fd, &val, sizeof val); | ||
143 | } | ||
144 | } | ||
145 | |||
146 | static void run_test(struct vdev_info *dev, struct vq_info *vq, int bufs) | ||
147 | { | ||
148 | struct scatterlist sl; | ||
149 | long started = 0, completed = 0; | ||
150 | long completed_before; | ||
151 | int r, test = 1; | ||
152 | unsigned len; | ||
153 | long long spurious = 0; | ||
154 | r = ioctl(dev->control, VHOST_TEST_RUN, &test); | ||
155 | assert(r >= 0); | ||
156 | for (;;) { | ||
157 | virtqueue_disable_cb(vq->vq); | ||
158 | completed_before = completed; | ||
159 | do { | ||
160 | if (started < bufs) { | ||
161 | sg_init_one(&sl, dev->buf, dev->buf_size); | ||
162 | r = virtqueue_add_buf(vq->vq, &sl, 1, 0, | ||
163 | dev->buf + started); | ||
164 | if (likely(r >= 0)) { | ||
165 | ++started; | ||
166 | virtqueue_kick(vq->vq); | ||
167 | } | ||
168 | } else | ||
169 | r = -1; | ||
170 | |||
171 | /* Flush out completed bufs if any */ | ||
172 | if (virtqueue_get_buf(vq->vq, &len)) { | ||
173 | ++completed; | ||
174 | r = 0; | ||
175 | } | ||
176 | |||
177 | } while (r >= 0); | ||
178 | if (completed == completed_before) | ||
179 | ++spurious; | ||
180 | assert(completed <= bufs); | ||
181 | assert(started <= bufs); | ||
182 | if (completed == bufs) | ||
183 | break; | ||
184 | if (virtqueue_enable_cb(vq->vq)) { | ||
185 | wait_for_interrupt(dev); | ||
186 | } | ||
187 | } | ||
188 | test = 0; | ||
189 | r = ioctl(dev->control, VHOST_TEST_RUN, &test); | ||
190 | assert(r >= 0); | ||
191 | fprintf(stderr, "spurious wakeus: 0x%llx\n", spurious); | ||
192 | } | ||
193 | |||
194 | const char optstring[] = "h"; | ||
195 | const struct option longopts[] = { | ||
196 | { | ||
197 | .name = "help", | ||
198 | .val = 'h', | ||
199 | }, | ||
200 | { | ||
201 | .name = "indirect", | ||
202 | .val = 'I', | ||
203 | }, | ||
204 | { | ||
205 | .name = "no-indirect", | ||
206 | .val = 'i', | ||
207 | }, | ||
208 | { | ||
209 | } | ||
210 | }; | ||
211 | |||
212 | static void help() | ||
213 | { | ||
214 | fprintf(stderr, "Usage: virtio_test [--help] [--no-indirect]\n"); | ||
215 | } | ||
216 | |||
217 | int main(int argc, char **argv) | ||
218 | { | ||
219 | struct vdev_info dev; | ||
220 | unsigned long long features = 1ULL << VIRTIO_RING_F_INDIRECT_DESC; | ||
221 | int o; | ||
222 | |||
223 | for (;;) { | ||
224 | o = getopt_long(argc, argv, optstring, longopts, NULL); | ||
225 | switch (o) { | ||
226 | case -1: | ||
227 | goto done; | ||
228 | case '?': | ||
229 | help(); | ||
230 | exit(2); | ||
231 | case 'h': | ||
232 | help(); | ||
233 | goto done; | ||
234 | case 'i': | ||
235 | features &= ~(1ULL << VIRTIO_RING_F_INDIRECT_DESC); | ||
236 | break; | ||
237 | default: | ||
238 | assert(0); | ||
239 | break; | ||
240 | } | ||
241 | } | ||
242 | |||
243 | done: | ||
244 | vdev_info_init(&dev, features); | ||
245 | vq_info_add(&dev, 256); | ||
246 | run_test(&dev, &dev.vqs[0], 0x100000); | ||
247 | return 0; | ||
248 | } | ||