drivers/net/ethernet: Fix (nearly-)kernel-doc comments for various functions

Fix incorrect start markers, wrapped summary lines, missing section
breaks, incorrect separators, and some name mismatches.  Delete
a few that are content-free.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index a166efc..ca477e8 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -2159,7 +2159,7 @@
 }
 
 /**
- * @e1000_alloc_ring - allocate memory for a ring structure
+ * e1000_alloc_ring_dma - allocate memory for a ring structure
  **/
 static int e1000_alloc_ring_dma(struct e1000_adapter *adapter,
 				struct e1000_ring *ring)