Dynamic Packet Descriptor 4

Reference Documentation

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Intel® PAC
Napatech SmartNIC
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Reference Information
Napatech Software Suite: Dynamic Packet Descriptor 4

Detailed Description

This descriptor provides the option to have the 64-bit correlation key in the color1 field, alternatively (the default) 32-bits color and 32-bits hash value can be provided in color1. The color0 field contains the lower 8 bits of the color when the color1 field is used for correlation key, otherwise (the default) color0 contains the outer protocol number The default values for the dynamic parts are:

offset0 = outer L3
offset1 = outer L4
color0 = outer Protocol / Next Header field
color1[31:0] = color value
color1[63:32] = hash value
descrLength = 24

Data Structures

struct  NtDyn4Descr_s
 NT Variable descriptor 4. More...
 

Typedefs

typedef struct NtDyn4Descr_s NtDyn4Descr_t
 NT Variable descriptor 4. More...
 

Data Structure Documentation

struct NtDyn4Descr_s

NT Variable descriptor 4.

Examples:
net/capfileconvert/capfileconvert_example.c.

Definition at line 65 of file pktdescr_dyn4.h.

Data Fields

uint64_t capLength:14
 
uint64_t offset0:10
 
uint64_t offset1:10
 
uint64_t color0:8
 
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 color1
 

Field Documentation

uint64_t NtDyn4Descr_s::capLength

The length of the packet incl. descriptor.

Definition at line 67 of file pktdescr_dyn4.h.

uint64_t NtDyn4Descr_s::offset0

Programmable offset into the packet. Default is outer L3.

Definition at line 68 of file pktdescr_dyn4.h.

Referenced by taskReceiverMiss().

uint64_t NtDyn4Descr_s::offset1

Programmable offset into the packet. Default is outer L4.

Definition at line 69 of file pktdescr_dyn4.h.

Referenced by taskReceiverMiss().

uint64_t NtDyn4Descr_s::color0

Programmable packet color[8:0].

Definition at line 70 of file pktdescr_dyn4.h.

Referenced by taskReceiverMiss().

uint64_t NtDyn4Descr_s::rxPort

The port that received the frame.

Definition at line 71 of file pktdescr_dyn4.h.

uint64_t NtDyn4Descr_s::descrFormat

The descriptor type.

Definition at line 72 of file pktdescr_dyn4.h.

uint64_t NtDyn4Descr_s::descrLength

The length of the descriptor in bytes.

Examples:
net/capfileconvert/capfileconvert_example.c.

Definition at line 73 of file pktdescr_dyn4.h.

Referenced by _Convert(), and taskReceiverMiss().

uint64_t NtDyn4Descr_s::tsColor

Timestamp color. Reserved for future use.

Definition at line 74 of file pktdescr_dyn4.h.

uint64_t NtDyn4Descr_s::ntDynDescr

Set to 1 to identify this descriptor as a dynamic descriptor.

Definition at line 75 of file pktdescr_dyn4.h.

uint64_t NtDyn4Descr_s::timestamp

The time of arrival of the packet.

Examples:
net/capfileconvert/capfileconvert_example.c.

Definition at line 76 of file pktdescr_dyn4.h.

Referenced by _Convert().

uint64_t NtDyn4Descr_s::color1

Programmable packet color[31:0] and hash[63:32].

Definition at line 77 of file pktdescr_dyn4.h.

Typedef Documentation

typedef struct NtDyn4Descr_s NtDyn4Descr_t

NT Variable descriptor 4.