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virtio_net: allocate queues, read macaddress, handle ioctl.

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This commit is contained in:
Jérôme Duval 2013-09-14 18:01:41 +02:00
parent d038239669
commit 4b308f30ca
1 changed files with 106 additions and 3 deletions
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109
src/add-ons/kernel/drivers/network/virtio/virtio_net.cpp
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@ -7,10 +7,14 @@
#include <ethernet.h>
#include <virtio.h>
#include <net/if_media.h>
#include <new>
#include "ether_driver.h"
#define ETHER_ADDR_LEN ETHER_ADDRESS_LENGTH
#include "virtio_net.h"
#define MAX_FRAME_SIZE 1536
#define VIRTIO_NET_DRIVER_MODULE_NAME "drivers/network/virtio_net/driver_v1"
#define VIRTIO_NET_DEVICE_MODULE_NAME "drivers/network/virtio_net/device_v1"
@ -24,6 +28,15 @@ typedef struct {
uint32 features;
uint32 pairs_count;
::virtio_queue* receive_queues;
::virtio_queue* send_queues;
bool nonblocking;
uint32 maxframesize;
uint8 macaddr[6];
} virtio_net_driver_info;
@ -120,8 +133,41 @@ virtio_net_init_device(void* _info, void** _cookie)
info->virtio->negociate_features(info->virtio_device,
0 /* */, &info->features, &get_feature_name);
if ((info->features & VIRTIO_NET_F_MQ) != 0
&& info->virtio->read_device_config(info->virtio_device,
offsetof(struct virtio_net_config, max_virtqueue_pairs),
&info->pairs_count, sizeof(info->pairs_count)) == B_OK) {
system_info sysinfo;
if (get_system_info(&sysinfo) == B_OK
&& info->pairs_count > sysinfo.cpu_count) {
info->pairs_count = sysinfo.cpu_count;
}
} else
info->pairs_count = 1;
// TODO read config
// TODO alloc queues and setup interrupts
uint32 queueCount = info->pairs_count * 2;
if ((info->features & VIRTIO_NET_F_CTRL_VQ) != 0)
queueCount++;
::virtio_queue virtioQueues[queueCount];
status_t status = info->virtio->alloc_queues(info->virtio_device, queueCount,
virtioQueues);
if (status != B_OK) {
ERROR("queue allocation failed (%s)\n", strerror(status));
return status;
}
info->receive_queues = new(std::nothrow) virtio_queue[info->pairs_count];
info->send_queues = new(std::nothrow) virtio_queue[info->pairs_count];
if (info->receive_queues == NULL || info->receive_queues == NULL)
return B_NO_MEMORY;
for (uint32 i = 0; i < info->pairs_count; i++) {
info->receive_queues[i] = virtioQueues[i * 2];
info->send_queues[i] = virtioQueues[i * 2 + 1];
}
// TODO setup interrupts
*_cookie = info;
return B_OK;
@ -147,8 +193,16 @@ virtio_net_open(void* _info, const char* path, int openMode, void** _cookie)
if (handle == NULL)
return B_NO_MEMORY;
info->nonblocking = (openMode & O_NONBLOCK) != 0;
info->maxframesize = MAX_FRAME_SIZE;
handle->info = info;
if ((info->features & VIRTIO_NET_F_MAC) != 0) {
info->virtio->read_device_config(info->virtio_device,
offsetof(struct virtio_net_config, mac),
&info->macaddr, sizeof(info->macaddr));
}
*_cookie = handle;
return B_OK;
}
@ -203,11 +257,60 @@ virtio_net_ioctl(void* cookie, uint32 op, void* buffer, size_t length)
virtio_net_handle* handle = (virtio_net_handle*)cookie;
virtio_net_driver_info* info = handle->info;
TRACE("ioctl(op = %ld)\n", op);
TRACE("ioctl(op = %lx)\n", op);
switch (op) {
case ETHER_GETADDR:
TRACE("ioctl: get macaddr\n");
memcpy(buffer, &info->macaddr, sizeof(info->macaddr));
return B_OK;
case ETHER_INIT:
TRACE("ioctl: init\n");
return B_OK;
case ETHER_GETFRAMESIZE:
TRACE("ioctl: get frame size\n");
*(uint32*)buffer = info->maxframesize;
return B_OK;
case ETHER_SETPROMISC:
TRACE("ioctl: set promisc\n");
break;
case ETHER_NONBLOCK:
info->nonblocking = *(int32 *)buffer == 0;
TRACE("ioctl: non blocking ? %s\n", info->nonblocking ? "yes" : "no");
return B_OK;
case ETHER_ADDMULTI:
TRACE("ioctl: add multicast\n");
break;
case ETHER_GET_LINK_STATE:
{
TRACE("ioctl: get link state\n");
ether_link_state_t state;
uint16 status = VIRTIO_NET_S_LINK_UP;
if ((info->features & VIRTIO_NET_F_STATUS) != 0) {
info->virtio->read_device_config(info->virtio_device,
offsetof(struct virtio_net_config, status),
&status, sizeof(status));
}
state.media = ((status & VIRTIO_NET_S_LINK_UP) != 0 ? IFM_ACTIVE : 0)
| IFM_ETHER | IFM_FULL_DUPLEX | IFM_10G_T;
state.speed = 10000000000ULL;
state.quality = 1000;
return user_memcpy(buffer, &state, sizeof(ether_link_state_t));
}
default:
ERROR("ioctl: unknown message %" B_PRIx32 "\n", op);
break;
}
return B_DEV_INVALID_IOCTL;
}