1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
|
/*
* Copyright (c) 2016 Chelsio Communications, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __LIBCXGB_CM_H__
#define __LIBCXGB_CM_H__
#include <net/tcp.h>
#include <cxgb4.h>
#include <t4_msg.h>
#include <l2t.h>
void
cxgb_get_4tuple(struct cpl_pass_accept_req *, enum chip_type,
int *, __u8 *, __u8 *, __be16 *, __be16 *);
struct dst_entry *
cxgb_find_route(struct cxgb4_lld_info *,
struct net_device *(*)(struct net_device *),
__be32, __be32, __be16, __be16, u8);
struct dst_entry *
cxgb_find_route6(struct cxgb4_lld_info *,
struct net_device *(*)(struct net_device *),
__u8 *, __u8 *, __be16, __be16, u8, __u32);
/* Returns whether a CPL status conveys negative advice.
*/
static inline bool cxgb_is_neg_adv(unsigned int status)
{
return status == CPL_ERR_RTX_NEG_ADVICE ||
status == CPL_ERR_PERSIST_NEG_ADVICE ||
status == CPL_ERR_KEEPALV_NEG_ADVICE;
}
static inline void
cxgb_best_mtu(const unsigned short *mtus, unsigned short mtu,
unsigned int *idx, int use_ts, int ipv6)
{
unsigned short hdr_size = (ipv6 ?
sizeof(struct ipv6hdr) :
sizeof(struct iphdr)) +
sizeof(struct tcphdr) +
(use_ts ?
round_up(TCPOLEN_TIMESTAMP, 4) : 0);
unsigned short data_size = mtu - hdr_size;
cxgb4_best_aligned_mtu(mtus, hdr_size, data_size, 8, idx);
}
static inline u32 cxgb_compute_wscale(u32 win)
{
u32 wscale = 0;
while (wscale < 14 && (65535 << wscale) < win)
wscale++;
return wscale;
}
static inline void
cxgb_mk_tid_release(struct sk_buff *skb, u32 len, u32 tid, u16 chan)
{
struct cpl_tid_release *req;
req = (struct cpl_tid_release *)__skb_put(skb, len);
memset(req, 0, len);
INIT_TP_WR(req, tid);
OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_TID_RELEASE, tid));
set_wr_txq(skb, CPL_PRIORITY_SETUP, chan);
}
static inline void
cxgb_mk_close_con_req(struct sk_buff *skb, u32 len, u32 tid, u16 chan,
void *handle, arp_err_handler_t handler)
{
struct cpl_close_con_req *req;
req = (struct cpl_close_con_req *)__skb_put(skb, len);
memset(req, 0, len);
INIT_TP_WR(req, tid);
OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_CLOSE_CON_REQ, tid));
set_wr_txq(skb, CPL_PRIORITY_DATA, chan);
t4_set_arp_err_handler(skb, handle, handler);
}
static inline void
cxgb_mk_abort_req(struct sk_buff *skb, u32 len, u32 tid, u16 chan,
void *handle, arp_err_handler_t handler)
{
struct cpl_abort_req *req;
req = (struct cpl_abort_req *)__skb_put(skb, len);
memset(req, 0, len);
INIT_TP_WR(req, tid);
OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ABORT_REQ, tid));
req->cmd = CPL_ABORT_SEND_RST;
set_wr_txq(skb, CPL_PRIORITY_DATA, chan);
t4_set_arp_err_handler(skb, handle, handler);
}
static inline void
cxgb_mk_abort_rpl(struct sk_buff *skb, u32 len, u32 tid, u16 chan)
{
struct cpl_abort_rpl *rpl;
rpl = (struct cpl_abort_rpl *)__skb_put(skb, len);
memset(rpl, 0, len);
INIT_TP_WR(rpl, tid);
OPCODE_TID(rpl) = cpu_to_be32(MK_OPCODE_TID(CPL_ABORT_RPL, tid));
rpl->cmd = CPL_ABORT_NO_RST;
set_wr_txq(skb, CPL_PRIORITY_DATA, chan);
}
#endif
|
