Detailed Description
This descriptor is suited for TX and includes the wire length as well as color bits in the first 8 bytes of the descriptor. This allows SW to reduce the frame size before TX by modifying the wire length and it allows reduction of the descriptor length down to only 8 bytes while retaining the possibility to encode TX flags such as txIgnore in the color. The default values for the dynamic parts are:
offset0 = outer L3
offset1 = outer L4
descrFormat = 3
descrLength = 22
Data Structures | |
| struct | NtDyn3Descr_s |
| NT Variable descriptor 3. More... | |
Typedefs | |
| typedef struct NtDyn3Descr_s | NtDyn3Descr_t |
| NT Variable descriptor 3. More... | |
Data Structure Documentation
| struct NtDyn3Descr_s |
NT Variable descriptor 3.
Definition at line 63 of file pktdescr_dyn3.h.
Data Fields | |
| uint64_t | capLength:14 |
| uint64_t | wireLength:14 |
| uint64_t | color_lo:14 |
| uint64_t | rxPort:6 |
| uint64_t | descrFormat:8 |
| uint64_t | descrLength:6 |
| uint64_t | tsColor:1 |
| uint64_t | ntDynDescr:1 |
| uint64_t | timestamp |
| uint64_t | color_hi:28 |
| uint64_t | offset0:10 |
| uint64_t | offset1:10 |
Field Documentation
| uint64_t NtDyn3Descr_s::capLength |
The length of the packet incl. descriptor.
Definition at line 64 of file pktdescr_dyn3.h.
| uint64_t NtDyn3Descr_s::wireLength |
The wire length of the packet.
- Examples:
- net/vlandemo/vlandemo_example.c.
Definition at line 65 of file pktdescr_dyn3.h.
Referenced by main().
| uint64_t NtDyn3Descr_s::color_lo |
Programmable packet color[13:0].
Definition at line 66 of file pktdescr_dyn3.h.
| uint64_t NtDyn3Descr_s::rxPort |
The port that received the frame.
- Examples:
- net/vlandemo/vlandemo_example.c.
Definition at line 67 of file pktdescr_dyn3.h.
Referenced by main().
| uint64_t NtDyn3Descr_s::descrFormat |
The descriptor type.
Definition at line 68 of file pktdescr_dyn3.h.
| uint64_t NtDyn3Descr_s::descrLength |
The length of the descriptor in bytes.
Definition at line 69 of file pktdescr_dyn3.h.
Referenced by _Convert(), and main().
| uint64_t NtDyn3Descr_s::tsColor |
Timestamp color. Reserved for future use.
Definition at line 70 of file pktdescr_dyn3.h.
| uint64_t NtDyn3Descr_s::ntDynDescr |
Set to 1 to identify this descriptor as a
Definition at line 71 of file pktdescr_dyn3.h.
| uint64_t NtDyn3Descr_s::timestamp |
< dynamic descriptor. The time of arrival of the packet.
- Examples:
- net/capfileconvert/capfileconvert_example.c.
Definition at line 73 of file pktdescr_dyn3.h.
Referenced by _Convert().
| uint64_t NtDyn3Descr_s::color_hi |
Programmable packet color[41:14].
Definition at line 74 of file pktdescr_dyn3.h.
| uint64_t NtDyn3Descr_s::offset0 |
Programmable offset into the packet.
Definition at line 75 of file pktdescr_dyn3.h.
| uint64_t NtDyn3Descr_s::offset1 |
Programmable offset into the packet.
Definition at line 76 of file pktdescr_dyn3.h.
Typedef Documentation
| typedef struct NtDyn3Descr_s NtDyn3Descr_t |
NT Variable descriptor 3.