diff options
Diffstat (limited to 'drivers/net/hyperv/netvsc.c')
| -rw-r--r-- | drivers/net/hyperv/netvsc.c | 53 |
1 files changed, 4 insertions, 49 deletions
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c index b6ac152a9bd..bab627f261c 100644 --- a/drivers/net/hyperv/netvsc.c +++ b/drivers/net/hyperv/netvsc.c @@ -603,12 +603,10 @@ static void netvsc_receive(struct hv_device *device, struct vmtransfer_page_packet_header *vmxferpage_packet; struct nvsp_message *nvsp_packet; struct hv_netvsc_packet *netvsc_packet = NULL; - unsigned long start; - unsigned long end, end_virtual; /* struct netvsc_driver *netvscDriver; */ struct xferpage_packet *xferpage_packet = NULL; - int i, j; - int count = 0, bytes_remain = 0; + int i; + int count = 0; unsigned long flags; struct net_device *ndev; @@ -717,53 +715,10 @@ static void netvsc_receive(struct hv_device *device, netvsc_packet->completion.recv.recv_completion_tid = vmxferpage_packet->d.trans_id; + netvsc_packet->data = (void *)((unsigned long)net_device-> + recv_buf + vmxferpage_packet->ranges[i].byte_offset); netvsc_packet->total_data_buflen = vmxferpage_packet->ranges[i].byte_count; - netvsc_packet->page_buf_cnt = 1; - - netvsc_packet->page_buf[0].len = - vmxferpage_packet->ranges[i].byte_count; - - start = virt_to_phys((void *)((unsigned long)net_device-> - recv_buf + vmxferpage_packet->ranges[i].byte_offset)); - - netvsc_packet->page_buf[0].pfn = start >> PAGE_SHIFT; - end_virtual = (unsigned long)net_device->recv_buf - + vmxferpage_packet->ranges[i].byte_offset - + vmxferpage_packet->ranges[i].byte_count - 1; - end = virt_to_phys((void *)end_virtual); - - /* Calculate the page relative offset */ - netvsc_packet->page_buf[0].offset = - vmxferpage_packet->ranges[i].byte_offset & - (PAGE_SIZE - 1); - if ((end >> PAGE_SHIFT) != (start >> PAGE_SHIFT)) { - /* Handle frame across multiple pages: */ - netvsc_packet->page_buf[0].len = - (netvsc_packet->page_buf[0].pfn << - PAGE_SHIFT) - + PAGE_SIZE - start; - bytes_remain = netvsc_packet->total_data_buflen - - netvsc_packet->page_buf[0].len; - for (j = 1; j < NETVSC_PACKET_MAXPAGE; j++) { - netvsc_packet->page_buf[j].offset = 0; - if (bytes_remain <= PAGE_SIZE) { - netvsc_packet->page_buf[j].len = - bytes_remain; - bytes_remain = 0; - } else { - netvsc_packet->page_buf[j].len = - PAGE_SIZE; - bytes_remain -= PAGE_SIZE; - } - netvsc_packet->page_buf[j].pfn = - virt_to_phys((void *)(end_virtual - - bytes_remain)) >> PAGE_SHIFT; - netvsc_packet->page_buf_cnt++; - if (bytes_remain == 0) - break; - } - } /* Pass it to the upper layer */ rndis_filter_receive(device, netvsc_packet); |