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Commit 6eaa043b authored by Sean Tranchetti's avatar Sean Tranchetti
Browse files

net: qualcomm: rmnet: Add QMAPv5 header definitions 



Adds definitions for new QMAPv5 checksum offload and coalescing headers,
as well as changing the main QMAP header definition to support these
additional headers.

Change-Id: I62fdf6d8d35e8788b089156703fdf3a1d6367e5b
Acked-by: default avatarRyan Chapman <rchapman@qti.qualcomm.com>
Signed-off-by: default avatarSean Tranchetti <stranche@codeaurora.org>
parent d26883bc

drivers/net/ethernet/qualcomm/rmnet/rmnet_map.h

+61 −1
Original line number Diff line number Diff line
@@ -3,6 +3,8 @@ 


#ifndef _RMNET_MAP_H_

#define _RMNET_MAP_H_



#include <linux/skbuff.h>

#include "rmnet_config.h"



struct rmnet_map_control_command {
@@ -33,14 +35,72 @@ enum rmnet_map_commands { 
	RMNET_MAP_COMMAND_ENUM_LENGTH

};



enum rmnet_map_v5_header_type {

	RMNET_MAP_HEADER_TYPE_UNKNOWN,

	RMNET_MAP_HEADER_TYPE_COALESCING = 0x1,

	RMNET_MAP_HEADER_TYPE_CSUM_OFFLOAD = 0x2,

	RMNET_MAP_HEADER_TYPE_ENUM_LENGTH

};



enum rmnet_map_v5_close_type {

	RMNET_MAP_COAL_CLOSE_NON_COAL,

	RMNET_MAP_COAL_CLOSE_IP_MISS,

	RMNET_MAP_COAL_CLOSE_TRANS_MISS,

	RMNET_MAP_COAL_CLOSE_HW,

	RMNET_MAP_COAL_CLOSE_COAL,

};



enum rmnet_map_v5_close_value {

	RMNET_MAP_COAL_CLOSE_HW_NL,

	RMNET_MAP_COAL_CLOSE_HW_PKT,

	RMNET_MAP_COAL_CLOSE_HW_BYTE,

	RMNET_MAP_COAL_CLOSE_HW_TIME,

	RMNET_MAP_COAL_CLOSE_HW_EVICT,

};



/* Main QMAP header */

struct rmnet_map_header {

	u8  pad_len:6;

	u8  reserved_bit:1;

	u8  next_hdr:1;

	u8  cd_bit:1;

	u8  mux_id;

	__be16 pkt_len;

}  __aligned(1);



/* QMAP v5 headers */

struct rmnet_map_v5_csum_header {

	u8  next_hdr:1;

	u8  header_type:7;

	u8  hw_reserved:7;

	u8  csum_valid_required:1;

	__be16 reserved;

} __aligned(1);



struct rmnet_map_v5_nl_pair {

	__be16 pkt_len;

	u8  csum_error_bitmap;

	u8  num_packets;

} __aligned(1);



/* NLO: Number-length object */

#define RMNET_MAP_V5_MAX_NLOS         (6)

#define RMNET_MAP_V5_MAX_PACKETS      (48)



struct rmnet_map_v5_coal_header {

	u8  next_hdr:1;

	u8  header_type:7;

	u8  reserved1:4;

	u8  num_nlos:3;

	u8  csum_valid:1;

	u8  close_type:4;

	u8  close_value:4;

	u8  reserved2:4;

	u8  virtual_channel_id:4;



	struct rmnet_map_v5_nl_pair nl_pairs[RMNET_MAP_V5_MAX_NLOS];

} __aligned(1);



/* QMAP v4 headers */

struct rmnet_map_dl_csum_trailer {

	u8  reserved1;

	u8  valid:1;

include/uapi/linux/if_link.h

+3 −0
Original line number Diff line number Diff line
@@ -984,6 +984,9 @@ enum { 
#define RMNET_FLAGS_INGRESS_MAP_COMMANDS          (1U << 1)

#define RMNET_FLAGS_INGRESS_MAP_CKSUMV4           (1U << 2)

#define RMNET_FLAGS_EGRESS_MAP_CKSUMV4            (1U << 3)

#define RMNET_FLAGS_INGRESS_COALESCE              (1U << 4)

#define RMNET_FLAGS_INGRESS_MAP_CKSUMV5           (1U << 5)

#define RMNET_FLAGS_EGRESS_MAP_CKSUMV5            (1U << 6)



enum {

	IFLA_RMNET_UNSPEC,