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rmnet_core: Add support for TSO

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This adds support for the new transmit offload header as well as
the handling needed for it in the core driver.

CRs-Fixed: 2810638
Change-Id: I8ce2e0772209faf3d585e7d9d8d56eceb695d586
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
This commit is contained in:
Subash Abhinov Kasiviswanathan
2020-12-16 23:50:03 -07:00
parent 4c8ad36ec7
commit dad91a4eff
5 changed files with 75 additions and 4 deletions
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14
core/rmnet_map.h
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@@ -48,6 +48,7 @@ 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_TSO = 0x3,
RMNET_MAP_HEADER_TYPE_ENUM_LENGTH
};
@@ -111,6 +112,16 @@ struct rmnet_map_v5_coal_header {
struct rmnet_map_v5_nl_pair nl_pairs[RMNET_MAP_V5_MAX_NLOS];
} __aligned(1);
struct rmnet_map_v5_tso_header {
u8 next_hdr:1;
u8 header_type:7;
u8 hw_reserved:5;
u8 priority:1;
u8 zero_csum:1;
u8 ip_id_cfg:1;
__be16 segment_size;
} __aligned(1);
/* QMAP v4 headers */
struct rmnet_map_dl_csum_trailer {
u8 reserved1;
@@ -280,4 +291,7 @@ int rmnet_map_dl_ind_register(struct rmnet_port *port,
int rmnet_map_dl_ind_deregister(struct rmnet_port *port,
struct rmnet_map_dl_ind *dl_ind);
void rmnet_map_cmd_exit(struct rmnet_port *port);
void rmnet_map_send_agg_skb(struct rmnet_port *port, unsigned long flags);
int rmnet_map_add_tso_header(struct sk_buff *skb, struct rmnet_port *port,
struct net_device *orig_dev);
#endif /* _RMNET_MAP_H_ */