A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 18:51:56 -04:00
Code Issues Projects Releases Packages Wiki Activity

IB/core: Initialize UD header structure with IP and UDP headers

Browse source 
ib_ud_header_init() is used to format InfiniBand headers
in a buffer up to (but not with) BTH. For RoCE UDP ENCAP it is
required that this function would be able to build also IP and UDP
headers.

Signed-off-by: Moni Shoua <[email protected]>
Signed-off-by: Matan Barak <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>
This commit is contained in:
Moni Shoua 2015-12-23 14:56:56 +02:00 • committed by Doug Ledford
commit 25f40220e5
4 changed files with 188 additions and 21 deletions
Download patch file Download diff file Expand all files Collapse all files

45
include/rdma/ib_pack.h
View file

@ -41,6 +41,8 @@ enum {
IB_ETH_BYTES = 14,
IB_VLAN_BYTES = 4,
IB_GRH_BYTES = 40,
IB_IP4_BYTES = 20,
IB_UDP_BYTES = 8,
IB_BTH_BYTES = 12,
IB_DETH_BYTES = 8
};
@ -223,6 +225,27 @@ struct ib_unpacked_eth {
__be16 type;
};
struct ib_unpacked_ip4 {
u8 ver;
u8 hdr_len;
u8 tos;
__be16 tot_len;
__be16 id;
__be16 frag_off;
u8 ttl;
u8 protocol;
__be16 check;
__be32 saddr;
__be32 daddr;
};
struct ib_unpacked_udp {
__be16 sport;
__be16 dport;
__be16 length;
__be16 csum;
};
struct ib_unpacked_vlan {
__be16 tag;
__be16 type;
@ -237,6 +260,10 @@ struct ib_ud_header {
struct ib_unpacked_vlan vlan;
int grh_present;
struct ib_unpacked_grh grh;
int ipv4_present;
struct ib_unpacked_ip4 ip4;
int udp_present;
struct ib_unpacked_udp udp;
struct ib_unpacked_bth bth;
struct ib_unpacked_deth deth;
int immediate_present;
@ -253,13 +280,17 @@ void ib_unpack(const struct ib_field *desc,
void *buf,
void *structure);
void ib_ud_header_init(int payload_bytes,
int lrh_present,
int eth_present,
int vlan_present,
int grh_present,
int immediate_present,
struct ib_ud_header *header);
__be16 ib_ud_ip4_csum(struct ib_ud_header *header);
int ib_ud_header_init(int payload_bytes,
int lrh_present,
int eth_present,
int vlan_present,
int grh_present,
int ip_version,
int udp_present,
int immediate_present,
struct ib_ud_header *header);
int ib_ud_header_pack(struct ib_ud_header *header,
void *buf);