1 files changed, 31 insertions, 1 deletions

diff --git a/drivers/net/tulip/tulip.h b/drivers/net/tulip/tulip.h
index 19abbc36b60a..0afa2d4f9472 100644
--- a/drivers/net/tulip/tulip.h
+++ b/drivers/net/tulip/tulip.h
@@ -201,8 +201,38 @@ enum desc_status_bits {
         DescStartPkt = 0x20000000,
         DescEndRing  = 0x02000000,
         DescUseLink  = 0x01000000,
-        RxDescFatalErr = 0x008000,
+
+        /*
+         * Error summary flag is logical or of 'CRC Error', 'Collision Seen',
+         * 'Frame Too Long', 'Runt' and 'Descriptor Error' flags generated
+         * within tulip chip.
+         */
+        RxDescErrorSummary = 0x8000,
+        RxDescCRCError = 0x0002,
+        RxDescCollisionSeen = 0x0040,
+
+        /*
+         * 'Frame Too Long' flag is set if packet length including CRC exceeds
+         * 1518.  However, a full sized VLAN tagged frame is 1522 bytes
+         * including CRC.
+         *
+         * The tulip chip does not block oversized frames, and if this flag is
+         * set on a receive descriptor it does not indicate the frame has been
+         * truncated.  The receive descriptor also includes the actual length.
+         * Therefore we can safety ignore this flag and check the length
+         * ourselves.
+         */
+        RxDescFrameTooLong = 0x0080,
+        RxDescRunt = 0x0800,
+        RxDescDescErr = 0x4000,
         RxWholePkt   = 0x00000300,
+        /*
+         * Top three bits of 14 bit frame length (status bits 27-29) should
+         * never be set as that would make frame over 2047 bytes. The Receive
+         * Watchdog flag (bit 4) may indicate the length is over 2048 and the
+         * length field is invalid.
+         */
+        RxLengthOver2047 = 0x38000010
 };