drv_xgbe_impl.h File Reference

#include <hv/netio_errors.h>
#include <hv/netio_intf.h>
#include <hv/drv_xgbe_intf.h>

Go to the source code of this file.

Data Structures
struct	__netio_packet_queue_t
struct	__netio_buffer_queue_t
struct	__netio_queue_impl_t
struct	__netio_queue_user_impl_t
struct	__netio_send_cmd_t

Macros
#define	LOG2_NUM_GROUPS   (12)
#define	NUM_GROUPS   (1 << LOG2_NUM_GROUPS)
#define	EPP_REQS_PER_TILE   (32)
#define	EDMA_WDS_NO_CSUM   8
#define	EDMA_WDS_CSUM   10
#define	EDMA_WDS_TOTAL   128
#define	SIZE_SMALL   (1)
#define	SIZE_LARGE   (2)
#define	SIZE_JUMBO   (0)
#define	NETIO_NUM_SIZES   3
#define	NETIO_DEFAULT_SMALL_PACKETS   2750
#define	NETIO_DEFAULT_LARGE_PACKETS   2500
#define	NETIO_DEFAULT_JUMBO_PACKETS   250
#define	NETIO_ARENA_SHIFT   24 /* 16 MB */
#define	NETIO_ARENA_SIZE   (1 << NETIO_ARENA_SHIFT)
#define	NETIO_GROUP_CHUNK_SIZE   64
#define	NETIO_BUCKET_CHUNK_SIZE   64
#define	__NETIO_SEND_FLG_ACK   0x1
#define	__NETIO_SEND_FLG_CSUM   0x2
#define	__NETIO_SEND_FLG_COMPLETION   0x4
#define	__NETIO_SEND_FLG_XSEG_SHIFT   3
#define	__NETIO_SEND_FLG_XSEG_WIDTH   2

Typedefs
typedef struct __netio_queue_impl_t	netio_queue_impl_t
typedef struct __netio_queue_user_impl_t	netio_queue_user_impl_t

Macro Definition Documentation

#define __NETIO_SEND_FLG_ACK   0x1

Flags used in two contexts:

• As the "flags" member in the __netio_send_cmd_t, above; used only for netio_pkt_send_{prepare,commit}.
• As part of the flags passed to the various send packet fast I/O calls.Need acknowledgement on this packet. Note that some code in the normal send_pkt fast I/O handler assumes that this is equal to 1.

Definition at line 283 of file drv_xgbe_impl.h.

#define __NETIO_SEND_FLG_COMPLETION   0x4

Get a completion on this packet. Only used with multi-segment sends.

Definition at line 291 of file drv_xgbe_impl.h.

#define __NETIO_SEND_FLG_CSUM   0x2

Do checksum on this packet. (Only used with the __netio_send_cmd_t; normal packet sends use a special fast I/O index to denote checksumming, and multi-segment sends test the checksum descriptor.)

Definition at line 288 of file drv_xgbe_impl.h.

#define __NETIO_SEND_FLG_XSEG_SHIFT   3

Position of the number-of-extra-segments value in the flags word. Only used with multi-segment sends.

Definition at line 295 of file drv_xgbe_impl.h.

#define __NETIO_SEND_FLG_XSEG_WIDTH   2

Width of the number-of-extra-segments value in the flags word.

Definition at line 298 of file drv_xgbe_impl.h.

#define EDMA_WDS_CSUM   10

Words used in an eDMA command with checksum acceleration.

Definition at line 39 of file drv_xgbe_impl.h.

#define EDMA_WDS_NO_CSUM   8

Words used in an eDMA command without checksum acceleration.

Definition at line 37 of file drv_xgbe_impl.h.

#define EDMA_WDS_TOTAL   128

Total available words in the eDMA command FIFO.

Definition at line 41 of file drv_xgbe_impl.h.

#define EPP_REQS_PER_TILE   (32)

Number of output requests we'll buffer per tile.

Definition at line 34 of file drv_xgbe_impl.h.

#define LOG2_NUM_GROUPS   (12)

How many groups we have (log2).

Definition at line 29 of file drv_xgbe_impl.h.

#define NETIO_ARENA_SHIFT   24 /* 16 MB */

Log2 of the size of a memory arena.

Definition at line 74 of file drv_xgbe_impl.h.

#define NETIO_ARENA_SIZE   (1 << NETIO_ARENA_SHIFT)

Size of a memory arena.

Definition at line 76 of file drv_xgbe_impl.h.

#define NETIO_BUCKET_CHUNK_SIZE   64

Max # buckets in one IPP request

Definition at line 256 of file drv_xgbe_impl.h.

#define NETIO_DEFAULT_JUMBO_PACKETS   250

The default number of jumbo packets.

Definition at line 70 of file drv_xgbe_impl.h.

#define NETIO_DEFAULT_LARGE_PACKETS   2500

The default number of large packets.

Definition at line 68 of file drv_xgbe_impl.h.

#define NETIO_DEFAULT_SMALL_PACKETS   2750

The default number of small packets.

Definition at line 66 of file drv_xgbe_impl.h.

#define NETIO_GROUP_CHUNK_SIZE   64

Max # groups in one IPP request

Definition at line 255 of file drv_xgbe_impl.h.

#define NETIO_NUM_SIZES   3

The number of "SIZE_xxx" values.

Definition at line 57 of file drv_xgbe_impl.h.

#define NUM_GROUPS   (1 << LOG2_NUM_GROUPS)

How many groups we have.

Definition at line 31 of file drv_xgbe_impl.h.

#define SIZE_JUMBO   (0)

Jumbo packet queue.

Definition at line 54 of file drv_xgbe_impl.h.

#define SIZE_LARGE   (2)

Large packet queue.

Definition at line 53 of file drv_xgbe_impl.h.

#define SIZE_SMALL   (1)

Small packet queue.

Definition at line 52 of file drv_xgbe_impl.h.

Typedef Documentation

typedef struct __netio_queue_impl_t netio_queue_impl_t

An object for providing Ethernet packets to a process.

typedef struct __netio_queue_user_impl_t netio_queue_user_impl_t

An object for managing the user end of a NetIO queue.