diff options
| -rw-r--r-- | drivers/net/hyperv/netvsc.c | 27 | ||||
| -rw-r--r-- | drivers/net/hyperv/rndis_filter.c | 5 |
2 files changed, 18 insertions, 14 deletions
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c index e998e2f7a619..7ab06b338a14 100644 --- a/drivers/net/hyperv/netvsc.c +++ b/drivers/net/hyperv/netvsc.c @@ -1289,6 +1289,21 @@ int netvsc_device_add(struct hv_device *device, */ set_channel_read_mode(device->channel, HV_CALL_ISR); + /* If we're reopening the device we may have multiple queues, fill the + * chn_table with the default channel to use it before subchannels are + * opened. + * Initialize the channel state before we open; + * we can be interrupted as soon as we open the channel. + */ + + for (i = 0; i < VRSS_CHANNEL_MAX; i++) { + struct netvsc_channel *nvchan = &net_device->chan_table[i]; + + nvchan->channel = device->channel; + netif_napi_add(ndev, &nvchan->napi, + netvsc_poll, NAPI_POLL_WEIGHT); + } + /* Open the channel */ ret = vmbus_open(device->channel, ring_size * PAGE_SIZE, ring_size * PAGE_SIZE, NULL, 0, @@ -1303,18 +1318,6 @@ int netvsc_device_add(struct hv_device *device, /* Channel is opened */ netdev_dbg(ndev, "hv_netvsc channel opened successfully\n"); - /* If we're reopening the device we may have multiple queues, fill the - * chn_table with the default channel to use it before subchannels are - * opened. - */ - for (i = 0; i < VRSS_CHANNEL_MAX; i++) { - struct netvsc_channel *nvchan = &net_device->chan_table[i]; - - nvchan->channel = device->channel; - netif_napi_add(ndev, &nvchan->napi, - netvsc_poll, NAPI_POLL_WEIGHT); - } - /* Enable NAPI handler for init callbacks */ napi_enable(&net_device->chan_table[0].napi); diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c index 983582526b37..1e9445bc4539 100644 --- a/drivers/net/hyperv/rndis_filter.c +++ b/drivers/net/hyperv/rndis_filter.c @@ -1007,12 +1007,13 @@ static void netvsc_sc_open(struct vmbus_channel *new_sc) */ set_channel_read_mode(new_sc, HV_CALL_ISR); + /* Set the channel before opening.*/ + nvchan->channel = new_sc; + ret = vmbus_open(new_sc, nvscdev->ring_size * PAGE_SIZE, nvscdev->ring_size * PAGE_SIZE, NULL, 0, netvsc_channel_cb, nvchan); - if (ret == 0) - nvchan->channel = new_sc; napi_enable(&nvchan->napi); |