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
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
/*
* Copyright 2008 Cisco Systems, Inc. All rights reserved.
* Copyright 2007 Nuova Systems, Inc. All rights reserved.
*
* This program is free software; you may redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* 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 _CQ_ENET_DESC_H_
#define _CQ_ENET_DESC_H_
#include "cq_desc.h"
/* Ethernet completion queue descriptor: 16B */
struct cq_enet_wq_desc {
__le16 completed_index;
__le16 q_number;
u8 reserved[11];
u8 type_color;
};
static inline void cq_enet_wq_desc_dec(struct cq_enet_wq_desc *desc,
u8 *type, u8 *color, u16 *q_number, u16 *completed_index)
{
cq_desc_dec((struct cq_desc *)desc, type,
color, q_number, completed_index);
}
/* Completion queue descriptor: Ethernet receive queue, 16B */
struct cq_enet_rq_desc {
__le16 completed_index_flags;
__le16 q_number_rss_type_flags;
__le32 rss_hash;
__le16 bytes_written_flags;
__le16 vlan;
__le16 checksum_fcoe;
u8 flags;
u8 type_color;
};
#define CQ_ENET_RQ_DESC_FLAGS_INGRESS_PORT (0x1 << 12)
#define CQ_ENET_RQ_DESC_FLAGS_FCOE (0x1 << 13)
#define CQ_ENET_RQ_DESC_FLAGS_EOP (0x1 << 14)
#define CQ_ENET_RQ_DESC_FLAGS_SOP (0x1 << 15)
#define CQ_ENET_RQ_DESC_RSS_TYPE_BITS 4
#define CQ_ENET_RQ_DESC_RSS_TYPE_MASK \
((1 << CQ_ENET_RQ_DESC_RSS_TYPE_BITS) - 1)
#define CQ_ENET_RQ_DESC_RSS_TYPE_NONE 0
#define CQ_ENET_RQ_DESC_RSS_TYPE_IPv4 1
#define CQ_ENET_RQ_DESC_RSS_TYPE_TCP_IPv4 2
#define CQ_ENET_RQ_DESC_RSS_TYPE_IPv6 3
#define CQ_ENET_RQ_DESC_RSS_TYPE_TCP_IPv6 4
#define CQ_ENET_RQ_DESC_RSS_TYPE_IPv6_EX 5
#define CQ_ENET_RQ_DESC_RSS_TYPE_TCP_IPv6_EX 6
#define CQ_ENET_RQ_DESC_FLAGS_CSUM_NOT_CALC (0x1 << 14)
#define CQ_ENET_RQ_DESC_BYTES_WRITTEN_BITS 14
#define CQ_ENET_RQ_DESC_BYTES_WRITTEN_MASK \
((1 << CQ_ENET_RQ_DESC_BYTES_WRITTEN_BITS) - 1)
#define CQ_ENET_RQ_DESC_FLAGS_TRUNCATED (0x1 << 14)
#define CQ_ENET_RQ_DESC_FLAGS_VLAN_STRIPPED (0x1 << 15)
#define CQ_ENET_RQ_DESC_FCOE_SOF_BITS 4
#define CQ_ENET_RQ_DESC_FCOE_SOF_MASK \
((1 << CQ_ENET_RQ_DESC_FCOE_SOF_BITS) - 1)
#define CQ_ENET_RQ_DESC_FCOE_EOF_BITS 8
#define CQ_ENET_RQ_DESC_FCOE_EOF_MASK \
((1 << CQ_ENET_RQ_DESC_FCOE_EOF_BITS) - 1)
#define CQ_ENET_RQ_DESC_FCOE_EOF_SHIFT 8
#define CQ_ENET_RQ_DESC_FLAGS_TCP_UDP_CSUM_OK (0x1 << 0)
#define CQ_ENET_RQ_DESC_FCOE_FC_CRC_OK (0x1 << 0)
#define CQ_ENET_RQ_DESC_FLAGS_UDP (0x1 << 1)
#define CQ_ENET_RQ_DESC_FCOE_ENC_ERROR (0x1 << 1)
#define CQ_ENET_RQ_DESC_FLAGS_TCP (0x1 << 2)
#define CQ_ENET_RQ_DESC_FLAGS_IPV4_CSUM_OK (0x1 << 3)
#define CQ_ENET_RQ_DESC_FLAGS_IPV6 (0x1 << 4)
#define CQ_ENET_RQ_DESC_FLAGS_IPV4 (0x1 << 5)
#define CQ_ENET_RQ_DESC_FLAGS_IPV4_FRAGMENT (0x1 << 6)
#define CQ_ENET_RQ_DESC_FLAGS_FCS_OK (0x1 << 7)
static inline void cq_enet_rq_desc_dec(struct cq_enet_rq_desc *desc,
u8 *type, u8 *color, u16 *q_number, u16 *completed_index,
u8 *ingress_port, u8 *fcoe, u8 *eop, u8 *sop, u8 *rss_type,
u8 *csum_not_calc, u32 *rss_hash, u16 *bytes_written, u8 *packet_error,
u8 *vlan_stripped, u16 *vlan, u16 *checksum, u8 *fcoe_sof,
u8 *fcoe_fc_crc_ok, u8 *fcoe_enc_error, u8 *fcoe_eof,
u8 *tcp_udp_csum_ok, u8 *udp, u8 *tcp, u8 *ipv4_csum_ok,
u8 *ipv6, u8 *ipv4, u8 *ipv4_fragment, u8 *fcs_ok)
{
u16 completed_index_flags = le16_to_cpu(desc->completed_index_flags);
u16 q_number_rss_type_flags =
le16_to_cpu(desc->q_number_rss_type_flags);
u16 bytes_written_flags = le16_to_cpu(desc->bytes_written_flags);
cq_desc_dec((struct cq_desc *)desc, type,
color, q_number, completed_index);
*ingress_port = (completed_index_flags &
CQ_ENET_RQ_DESC_FLAGS_INGRESS_PORT) ? 1 : 0;
*fcoe = (completed_index_flags & CQ_ENET_RQ_DESC_FLAGS_FCOE) ?
1 : 0;
*eop = (completed_index_flags & CQ_ENET_RQ_DESC_FLAGS_EOP) ?
1 : 0;
*sop = (completed_index_flags & CQ_ENET_RQ_DESC_FLAGS_SOP) ?
1 : 0;
*rss_type = (u8)((q_number_rss_type_flags >> CQ_DESC_Q_NUM_BITS) &
CQ_ENET_RQ_DESC_RSS_TYPE_MASK);
*csum_not_calc = (q_number_rss_type_flags &
CQ_ENET_RQ_DESC_FLAGS_CSUM_NOT_CALC) ? 1 : 0;
*rss_hash = le32_to_cpu(desc->rss_hash);
*bytes_written = bytes_written_flags &
CQ_ENET_RQ_DESC_BYTES_WRITTEN_MASK;
*packet_error = (bytes_written_flags &
CQ_ENET_RQ_DESC_FLAGS_TRUNCATED) ? 1 : 0;
*vlan_stripped = (bytes_written_flags &
CQ_ENET_RQ_DESC_FLAGS_VLAN_STRIPPED) ? 1 : 0;
*vlan = le16_to_cpu(desc->vlan);
if (*fcoe) {
*fcoe_sof = (u8)(le16_to_cpu(desc->checksum_fcoe) &
CQ_ENET_RQ_DESC_FCOE_SOF_MASK);
*fcoe_fc_crc_ok = (desc->flags &
CQ_ENET_RQ_DESC_FCOE_FC_CRC_OK) ? 1 : 0;
*fcoe_enc_error = (desc->flags &
CQ_ENET_RQ_DESC_FCOE_ENC_ERROR) ? 1 : 0;
*fcoe_eof = (u8)((desc->checksum_fcoe >>
CQ_ENET_RQ_DESC_FCOE_EOF_SHIFT) &
CQ_ENET_RQ_DESC_FCOE_EOF_MASK);
*checksum = 0;
} else {
*fcoe_sof = 0;
*fcoe_fc_crc_ok = 0;
*fcoe_enc_error = 0;
*fcoe_eof = 0;
*checksum = le16_to_cpu(desc->checksum_fcoe);
}
*tcp_udp_csum_ok =
(desc->flags & CQ_ENET_RQ_DESC_FLAGS_TCP_UDP_CSUM_OK) ? 1 : 0;
*udp = (desc->flags & CQ_ENET_RQ_DESC_FLAGS_UDP) ? 1 : 0;
*tcp = (desc->flags & CQ_ENET_RQ_DESC_FLAGS_TCP) ? 1 : 0;
*ipv4_csum_ok =
(desc->flags & CQ_ENET_RQ_DESC_FLAGS_IPV4_CSUM_OK) ? 1 : 0;
*ipv6 = (desc->flags & CQ_ENET_RQ_DESC_FLAGS_IPV6) ? 1 : 0;
*ipv4 = (desc->flags & CQ_ENET_RQ_DESC_FLAGS_IPV4) ? 1 : 0;
*ipv4_fragment =
(desc->flags & CQ_ENET_RQ_DESC_FLAGS_IPV4_FRAGMENT) ? 1 : 0;
*fcs_ok = (desc->flags & CQ_ENET_RQ_DESC_FLAGS_FCS_OK) ? 1 : 0;
}
#endif /* _CQ_ENET_DESC_H_ */
|
