Root/
1 | #ifndef _RDS_RDMA_H |
2 | #define _RDS_RDMA_H |
3 | |
4 | #include <linux/rbtree.h> |
5 | #include <linux/spinlock.h> |
6 | #include <linux/scatterlist.h> |
7 | |
8 | #include "rds.h" |
9 | |
10 | struct rds_mr { |
11 | struct rb_node r_rb_node; |
12 | atomic_t r_refcount; |
13 | u32 r_key; |
14 | |
15 | /* A copy of the creation flags */ |
16 | unsigned int r_use_once:1; |
17 | unsigned int r_invalidate:1; |
18 | unsigned int r_write:1; |
19 | |
20 | /* This is for RDS_MR_DEAD. |
21 | * It would be nice & consistent to make this part of the above |
22 | * bit field here, but we need to use test_and_set_bit. |
23 | */ |
24 | unsigned long r_state; |
25 | struct rds_sock *r_sock; /* back pointer to the socket that owns us */ |
26 | struct rds_transport *r_trans; |
27 | void *r_trans_private; |
28 | }; |
29 | |
30 | /* Flags for mr->r_state */ |
31 | #define RDS_MR_DEAD 0 |
32 | |
33 | struct rds_rdma_op { |
34 | u32 r_key; |
35 | u64 r_remote_addr; |
36 | unsigned int r_write:1; |
37 | unsigned int r_fence:1; |
38 | unsigned int r_notify:1; |
39 | unsigned int r_recverr:1; |
40 | unsigned int r_mapped:1; |
41 | struct rds_notifier *r_notifier; |
42 | unsigned int r_bytes; |
43 | unsigned int r_nents; |
44 | unsigned int r_count; |
45 | struct scatterlist r_sg[0]; |
46 | }; |
47 | |
48 | static inline rds_rdma_cookie_t rds_rdma_make_cookie(u32 r_key, u32 offset) |
49 | { |
50 | return r_key | (((u64) offset) << 32); |
51 | } |
52 | |
53 | static inline u32 rds_rdma_cookie_key(rds_rdma_cookie_t cookie) |
54 | { |
55 | return cookie; |
56 | } |
57 | |
58 | static inline u32 rds_rdma_cookie_offset(rds_rdma_cookie_t cookie) |
59 | { |
60 | return cookie >> 32; |
61 | } |
62 | |
63 | int rds_get_mr(struct rds_sock *rs, char __user *optval, int optlen); |
64 | int rds_get_mr_for_dest(struct rds_sock *rs, char __user *optval, int optlen); |
65 | int rds_free_mr(struct rds_sock *rs, char __user *optval, int optlen); |
66 | void rds_rdma_drop_keys(struct rds_sock *rs); |
67 | int rds_cmsg_rdma_args(struct rds_sock *rs, struct rds_message *rm, |
68 | struct cmsghdr *cmsg); |
69 | int rds_cmsg_rdma_dest(struct rds_sock *rs, struct rds_message *rm, |
70 | struct cmsghdr *cmsg); |
71 | int rds_cmsg_rdma_args(struct rds_sock *rs, struct rds_message *rm, |
72 | struct cmsghdr *cmsg); |
73 | int rds_cmsg_rdma_map(struct rds_sock *rs, struct rds_message *rm, |
74 | struct cmsghdr *cmsg); |
75 | void rds_rdma_free_op(struct rds_rdma_op *ro); |
76 | void rds_rdma_send_complete(struct rds_message *rm, int); |
77 | |
78 | extern void __rds_put_mr_final(struct rds_mr *mr); |
79 | static inline void rds_mr_put(struct rds_mr *mr) |
80 | { |
81 | if (atomic_dec_and_test(&mr->r_refcount)) |
82 | __rds_put_mr_final(mr); |
83 | } |
84 | |
85 | #endif |
86 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9