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Commit 5dbe477b authored by Himansu Nayak's avatar Himansu Nayak
Browse files

msm_ipa: new structure for tunnel design for uC 



1. structures for tunnels according to new HPS.
2. Action to taken per vlan mapped to each pdn.
3. structure for untag pppoe packet over eogre.
4. structure for single tag packet over eogre.
5. structure for double tag + pppoe packet over
   mpls tunnel.
6. new ioctl structure for uC.

Change-Id: I7c7769c42070c91bc595baff662f2430d12b0da7
Signed-off-by: default avatarHimansu Nayak <quic_himansu@quicinc.com>
parent 2cf7f335

include/uapi/linux/msm_ipa.h

+108 −0
Original line number Diff line number Diff line
@@ -152,6 +152,8 @@ 
#define IPA_IOCTL_SET_EXT_ROUTER_MODE           95

#define IPA_IOCTL_ADD_DEL_DSCP_PCP_MAPPING      96

#define IPA_IOCTL_SEND_VLAN_MUXID_MAPPING       97

#define IPA_IOCTL_SEND_TUNNEL_TEMPLATE_INFO       98

#define IPA_IOCTL_QUERY_TUNNEL_FEATURE       99

/**

 * max size of the header to be inserted

 */
@@ -1776,6 +1778,104 @@ struct ipa_ioc_mux_mapping_table { 
	struct singletag_mux_map_entry map_entries[MAX_VLAN_CONFIGURE];

};



/* Feature Type Supported Design*/

/* Cache all Design Support with Regular HPS for both EoGRE and MPLSoGRE tunnel */

#define DEFAULT_FEATURE 0x00

/* EoGRE to support Single Tag packet with new HPS */

#define SINGLE_TAG_FEATURE 0x01

/* MPLSoGRE to support Double Tag packet with new HPS */

#define DOUBLE_TAG_FEATURE 0x02

/* EoGRE to support UnTag packet with new HPS */

#define UNTAG_FEATURE 0x03



/* l2 header is adjusted for every hwp_pkt_next_action */

/* uc evaluate l2 header length and send packet to exception */

#define SW_PATH_ADJ_L2_EXCEPTION 0x00

/* uc evaluate l2 header length and send packet to 2nd pass */

#define HW_PATH_ADJ_L2_RESUME_2ND_PASS 0x01

/* uc evaluate l2 header length, update the metadata and send packet to 2nd pass */

#define HW_PATH_ADJ_L2_METADATA_UPDATE_RESUME_2ND_PASS 0x02

/* uc evaluate l2 header length, add outer header and send packet to 2nd pass */

#define HW_PATH_ADJ_L2_ADD_TUNNEL_RESUME_2ND_PASS 0x03

/* uc evaluate l2 header, update metadata, add outer header and send packet to 2nd pass */

#define HW_PATH_ADJ_L2_ADD_TUNNEL_WITH_METADATA_UPDATE_RESUME_2ND_PASS 0x04



/* untagged packet configuration */

struct untag_pkt_config_t {

	/* packet action that should follow untag packet */

	uint32_t action_configured;

	/* pdn from which untag packet should transfer */

	uint8_t mux_id;

	/* flag if 1=>pkt_with_option_hdr 0=>pkt_without_option_hdr */

	uint8_t is_v6_options_hdr_present;

	uint16_t pad0; /*for alignment*/

	/* lower 32 bit of tunnel header address */

	uint32_t *tunnel_template_addr;

	uint32_t pad1; /*for alignment*/

} __packed;





/* vlanid - action - tunnel_id - mux_id */

struct singletag_mux_mapping_table_t {

	/* multi tunnel purpose */

	uint16_t vlan_id_start;

	uint16_t vlan_id_end;

	uint32_t action_configured;

	/* pdn from which untag packet should transfer */

	uint8_t mux_id;

	/* flag if 1=>pkt_with_option_hdr 0=>pkt_without_option_hdr */

	uint8_t is_v6_options_hdr_present;

	uint16_t pad0; /*for alignment*/

	uint32_t *tunnel_template_addr;

} __packed;



struct doubletag_mux_mapping_table_t {

	/* multi tunnel purpose */

	uint16_t stag_id_start;

	uint16_t stag_id_end;

	uint16_t ctag_id_start;

	uint16_t ctag_id_end;

	uint32_t action_configured;

	/* pdn from which untag packet should transfer */

	uint8_t mux_id;

	/* flag if 1=>pkt_with_option_hdr 0=>pkt_without_option_hdr */

	uint8_t is_v6_options_hdr_present;

	uint16_t pad0; /*for alignment*/

	uint32_t *tunnel_template_addr;

	uint32_t pad1; /*for alignment*/

} __packed;



/* max template side pass to uc */

#define MAX_TEMPLATE_SIZE 64

/* max number of tunnel to support ie: per PDN two tunnel (2*8)*/

#define MAX_TUNNEL_SUPPORT 16



/* configuration table */

struct tunnel_protocols_config_table_t {

	struct untag_pkt_config_t untagged_mapping_table;

	uint8_t num_of_single_tag_configs;

	uint8_t pad0; /*for alignment*/

	uint16_t pad1; /*for alignment*/

	uint32_t pad2; /*for alignment*/

	/* table for single tag pkt */

	struct singletag_mux_mapping_table_t singletag_mux_mapping_table[MAX_TUNNEL_SUPPORT];

	uint8_t num_of_double_tag_configs;

	uint8_t pad3; /*for alignment*/

	uint16_t pad4; /*for alignment*/

	uint32_t pad5; /*for alignment*/

	/* table for double tag pkt */

	struct doubletag_mux_mapping_table_t doubletag_mux_mapping_table[MAX_TUNNEL_SUPPORT];

};



/* ioctl tunnel configuration table */



struct ipa_ioc_tunnel_template_info {

	uint8_t template_header[MAX_TEMPLATE_SIZE];

	uint32_t template_len;

	uint32_t template_type;

	/*tunnel configuration table*/

	struct tunnel_protocols_config_table_t tunnel_config;

};



/**

 * struct ipa_exception
@@ -4103,6 +4203,14 @@ struct ipa_ioc_dscp_pcp_map_info { 
				IPA_IOCTL_SEND_VLAN_MUXID_MAPPING, \

				struct ipa_ioc_mux_mapping_table)



#define IPA_IOC_SEND_TUNNEL_TEMPLATE_INFO _IOW(IPA_IOC_MAGIC, \

				IPA_IOCTL_SEND_TUNNEL_TEMPLATE_INFO, \

				struct ipa_ioc_tunnel_template_info)





#define IPA_IOC_QUERY_TUNNEL_FEATURE _IOW(IPA_IOC_MAGIC, \

				IPA_IOCTL_QUERY_TUNNEL_FEATURE, \

				uint8_t)



/*

 * unique magic number of the Tethering bridge ioctls