VMXNET3_RING_SIZE_ALIGN
#define VMXNET3_RING_SIZE_MASK (VMXNET3_RING_SIZE_ALIGN - 1)
sz = adapter->rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN;
VMXNET3_RING_SIZE_ALIGN) != 0)
sz = adapter->rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN;