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authorLaurent Vivier <lvivier@redhat.com>2024-11-22 17:43:34 +0100
committerStefano Brivio <sbrivio@redhat.com>2024-11-27 16:47:32 +0100
commit28997fcb29b560fc0dcfd91bad5eece3ded5eb72 (patch)
tree34aad38ecc628c37bb88413a3c809498c45ae9cb /packet.h
parentb2e62f7e85ac77a91daf5d77b7f32198ef0e59c2 (diff)
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vhost-user: add vhost-user
add virtio and vhost-user functions to connect with QEMU. $ ./passt --vhost-user and # qemu-system-x86_64 ... -m 4G \ -object memory-backend-memfd,id=memfd0,share=on,size=4G \ -numa node,memdev=memfd0 \ -chardev socket,id=chr0,path=/tmp/passt_1.socket \ -netdev vhost-user,id=netdev0,chardev=chr0 \ -device virtio-net,mac=9a:2b:2c:2d:2e:2f,netdev=netdev0 \ ... Signed-off-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> [sbrivio: as suggested by lvivier, include <netinet/if_ether.h> before including <linux/if_ether.h> as C libraries such as musl __UAPI_DEF_ETHHDR in <netinet/if_ether.h> if they already have a definition of struct ethhdr] Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Diffstat (limited to 'packet.h')
-rw-r--r--packet.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/packet.h b/packet.h
index 8377dcf..3f70e94 100644
--- a/packet.h
+++ b/packet.h
@@ -8,8 +8,10 @@
/**
* struct pool - Generic pool of packets stored in a buffer
- * @buf: Buffer storing packet descriptors
- * @buf_size: Total size of buffer
+ * @buf: Buffer storing packet descriptors,
+ * a struct vu_dev_region array for passt vhost-user mode
+ * @buf_size: Total size of buffer,
+ * 0 for passt vhost-user mode
* @size: Number of usable descriptors for the pool
* @count: Number of used descriptors for the pool
* @pkt: Descriptors: see macros below
@@ -22,6 +24,8 @@ struct pool {
struct iovec pkt[1];
};
+int vu_packet_check_range(void *buf, size_t offset, size_t len,
+ const char *start);
void packet_add_do(struct pool *p, size_t len, const char *start,
const char *func, int line);
void *packet_get_do(const struct pool *p, const size_t idx,