Broadcom NetXtreme/NetLink BCM5718 Series Programmer's Manual page 159

BCM5718 Programmer's Guide
Bit # Flag Name
4 PTP Status[0]
5 BD_FLAG_JUMBO_RING
6 BD_FLAG_VLAN_TAG
7 RSS_HASH_TYPE
8
9 PTP Status[1]
10 BD_FLAG_FRAME_HAS_ERROR An error was detected by the NIC. The detected error type is set in
11 Reserved
12 IP_CHECKSUM
13 TCP_UDP_CHECKSUM
14 TCP_UDP_IS_TCP
15 IPV6_PACKET
Broadcom
®
January 29, 2016 • 5718-PG108-R
Table 46: Receive Return Ring RBD Flags (Cont.)
Flag Description
Bit{[9][4]} makes up this 2-bit field
00: Not a PTP packet
01: PTP v1 (UDP) packet Time Stamped
10: PTP v2 (L2) packet Time Stamped
11: PTP packet, but not time stamped
Indicates that this packet came from the Jumbo Receive Ring, not
the Standard Receive Ring (for receive BDs only). This must be set
by the driver, it is just copied through opaquely by the NMIC
firmware.
The frame associated with this buffer descriptor has an 802.1Q
VLAN tag associated with it.
Hash type of the receive packet. It indicates which hash_type was
used on the receive packet if multiple hash type are defined.
See bit [4]
the Error_Flag word of the receive buffer descriptor.
Indicates that the IP Checksum field is valid.
Indicates that the TCP_UDP_Checksum field is valid.
Indicates that this frame has a TCP packet in it.
Indicates that this frame has an IPv6 packet in it.
Receive Time Stamp and Sequence ID Registers
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