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Diffstat (limited to 'drivers/scsi/fnic/cq_enet_desc.h')
-rw-r--r--drivers/scsi/fnic/cq_enet_desc.h167
1 files changed, 167 insertions, 0 deletions
diff --git a/drivers/scsi/fnic/cq_enet_desc.h b/drivers/scsi/fnic/cq_enet_desc.h
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+++ b/drivers/scsi/fnic/cq_enet_desc.h
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1/*
2 * Copyright 2008 Cisco Systems, Inc. All rights reserved.
3 * Copyright 2007 Nuova Systems, Inc. All rights reserved.
4 *
5 * This program is free software; you may redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; version 2 of the License.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
10 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
11 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
12 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
13 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
14 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
15 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
16 * SOFTWARE.
17 */
18#ifndef _CQ_ENET_DESC_H_
19#define _CQ_ENET_DESC_H_
20
21#include "cq_desc.h"
22
23/* Ethernet completion queue descriptor: 16B */
24struct cq_enet_wq_desc {
25 __le16 completed_index;
26 __le16 q_number;
27 u8 reserved[11];
28 u8 type_color;
29};
30
31static inline void cq_enet_wq_desc_dec(struct cq_enet_wq_desc *desc,
32 u8 *type, u8 *color, u16 *q_number, u16 *completed_index)
33{
34 cq_desc_dec((struct cq_desc *)desc, type,
35 color, q_number, completed_index);
36}
37
38/* Completion queue descriptor: Ethernet receive queue, 16B */
39struct cq_enet_rq_desc {
40 __le16 completed_index_flags;
41 __le16 q_number_rss_type_flags;
42 __le32 rss_hash;
43 __le16 bytes_written_flags;
44 __le16 vlan;
45 __le16 checksum_fcoe;
46 u8 flags;
47 u8 type_color;
48};
49
50#define CQ_ENET_RQ_DESC_FLAGS_INGRESS_PORT (0x1 << 12)
51#define CQ_ENET_RQ_DESC_FLAGS_FCOE (0x1 << 13)
52#define CQ_ENET_RQ_DESC_FLAGS_EOP (0x1 << 14)
53#define CQ_ENET_RQ_DESC_FLAGS_SOP (0x1 << 15)
54
55#define CQ_ENET_RQ_DESC_RSS_TYPE_BITS 4
56#define CQ_ENET_RQ_DESC_RSS_TYPE_MASK \
57 ((1 << CQ_ENET_RQ_DESC_RSS_TYPE_BITS) - 1)
58#define CQ_ENET_RQ_DESC_RSS_TYPE_NONE 0
59#define CQ_ENET_RQ_DESC_RSS_TYPE_IPv4 1
60#define CQ_ENET_RQ_DESC_RSS_TYPE_TCP_IPv4 2
61#define CQ_ENET_RQ_DESC_RSS_TYPE_IPv6 3
62#define CQ_ENET_RQ_DESC_RSS_TYPE_TCP_IPv6 4
63#define CQ_ENET_RQ_DESC_RSS_TYPE_IPv6_EX 5
64#define CQ_ENET_RQ_DESC_RSS_TYPE_TCP_IPv6_EX 6
65
66#define CQ_ENET_RQ_DESC_FLAGS_CSUM_NOT_CALC (0x1 << 14)
67
68#define CQ_ENET_RQ_DESC_BYTES_WRITTEN_BITS 14
69#define CQ_ENET_RQ_DESC_BYTES_WRITTEN_MASK \
70 ((1 << CQ_ENET_RQ_DESC_BYTES_WRITTEN_BITS) - 1)
71#define CQ_ENET_RQ_DESC_FLAGS_TRUNCATED (0x1 << 14)
72#define CQ_ENET_RQ_DESC_FLAGS_VLAN_STRIPPED (0x1 << 15)
73
74#define CQ_ENET_RQ_DESC_FCOE_SOF_BITS 4
75#define CQ_ENET_RQ_DESC_FCOE_SOF_MASK \
76 ((1 << CQ_ENET_RQ_DESC_FCOE_SOF_BITS) - 1)
77#define CQ_ENET_RQ_DESC_FCOE_EOF_BITS 8
78#define CQ_ENET_RQ_DESC_FCOE_EOF_MASK \
79 ((1 << CQ_ENET_RQ_DESC_FCOE_EOF_BITS) - 1)
80#define CQ_ENET_RQ_DESC_FCOE_EOF_SHIFT 8
81
82#define CQ_ENET_RQ_DESC_FLAGS_TCP_UDP_CSUM_OK (0x1 << 0)
83#define CQ_ENET_RQ_DESC_FCOE_FC_CRC_OK (0x1 << 0)
84#define CQ_ENET_RQ_DESC_FLAGS_UDP (0x1 << 1)
85#define CQ_ENET_RQ_DESC_FCOE_ENC_ERROR (0x1 << 1)
86#define CQ_ENET_RQ_DESC_FLAGS_TCP (0x1 << 2)
87#define CQ_ENET_RQ_DESC_FLAGS_IPV4_CSUM_OK (0x1 << 3)
88#define CQ_ENET_RQ_DESC_FLAGS_IPV6 (0x1 << 4)
89#define CQ_ENET_RQ_DESC_FLAGS_IPV4 (0x1 << 5)
90#define CQ_ENET_RQ_DESC_FLAGS_IPV4_FRAGMENT (0x1 << 6)
91#define CQ_ENET_RQ_DESC_FLAGS_FCS_OK (0x1 << 7)
92
93static inline void cq_enet_rq_desc_dec(struct cq_enet_rq_desc *desc,
94 u8 *type, u8 *color, u16 *q_number, u16 *completed_index,
95 u8 *ingress_port, u8 *fcoe, u8 *eop, u8 *sop, u8 *rss_type,
96 u8 *csum_not_calc, u32 *rss_hash, u16 *bytes_written, u8 *packet_error,
97 u8 *vlan_stripped, u16 *vlan, u16 *checksum, u8 *fcoe_sof,
98 u8 *fcoe_fc_crc_ok, u8 *fcoe_enc_error, u8 *fcoe_eof,
99 u8 *tcp_udp_csum_ok, u8 *udp, u8 *tcp, u8 *ipv4_csum_ok,
100 u8 *ipv6, u8 *ipv4, u8 *ipv4_fragment, u8 *fcs_ok)
101{
102 u16 completed_index_flags = le16_to_cpu(desc->completed_index_flags);
103 u16 q_number_rss_type_flags =
104 le16_to_cpu(desc->q_number_rss_type_flags);
105 u16 bytes_written_flags = le16_to_cpu(desc->bytes_written_flags);
106
107 cq_desc_dec((struct cq_desc *)desc, type,
108 color, q_number, completed_index);
109
110 *ingress_port = (completed_index_flags &
111 CQ_ENET_RQ_DESC_FLAGS_INGRESS_PORT) ? 1 : 0;
112 *fcoe = (completed_index_flags & CQ_ENET_RQ_DESC_FLAGS_FCOE) ?
113 1 : 0;
114 *eop = (completed_index_flags & CQ_ENET_RQ_DESC_FLAGS_EOP) ?
115 1 : 0;
116 *sop = (completed_index_flags & CQ_ENET_RQ_DESC_FLAGS_SOP) ?
117 1 : 0;
118
119 *rss_type = (u8)((q_number_rss_type_flags >> CQ_DESC_Q_NUM_BITS) &
120 CQ_ENET_RQ_DESC_RSS_TYPE_MASK);
121 *csum_not_calc = (q_number_rss_type_flags &
122 CQ_ENET_RQ_DESC_FLAGS_CSUM_NOT_CALC) ? 1 : 0;
123
124 *rss_hash = le32_to_cpu(desc->rss_hash);
125
126 *bytes_written = bytes_written_flags &
127 CQ_ENET_RQ_DESC_BYTES_WRITTEN_MASK;
128 *packet_error = (bytes_written_flags &
129 CQ_ENET_RQ_DESC_FLAGS_TRUNCATED) ? 1 : 0;
130 *vlan_stripped = (bytes_written_flags &
131 CQ_ENET_RQ_DESC_FLAGS_VLAN_STRIPPED) ? 1 : 0;
132
133 *vlan = le16_to_cpu(desc->vlan);
134
135 if (*fcoe) {
136 *fcoe_sof = (u8)(le16_to_cpu(desc->checksum_fcoe) &
137 CQ_ENET_RQ_DESC_FCOE_SOF_MASK);
138 *fcoe_fc_crc_ok = (desc->flags &
139 CQ_ENET_RQ_DESC_FCOE_FC_CRC_OK) ? 1 : 0;
140 *fcoe_enc_error = (desc->flags &
141 CQ_ENET_RQ_DESC_FCOE_ENC_ERROR) ? 1 : 0;
142 *fcoe_eof = (u8)((desc->checksum_fcoe >>
143 CQ_ENET_RQ_DESC_FCOE_EOF_SHIFT) &
144 CQ_ENET_RQ_DESC_FCOE_EOF_MASK);
145 *checksum = 0;
146 } else {
147 *fcoe_sof = 0;
148 *fcoe_fc_crc_ok = 0;
149 *fcoe_enc_error = 0;
150 *fcoe_eof = 0;
151 *checksum = le16_to_cpu(desc->checksum_fcoe);
152 }
153
154 *tcp_udp_csum_ok =
155 (desc->flags & CQ_ENET_RQ_DESC_FLAGS_TCP_UDP_CSUM_OK) ? 1 : 0;
156 *udp = (desc->flags & CQ_ENET_RQ_DESC_FLAGS_UDP) ? 1 : 0;
157 *tcp = (desc->flags & CQ_ENET_RQ_DESC_FLAGS_TCP) ? 1 : 0;
158 *ipv4_csum_ok =
159 (desc->flags & CQ_ENET_RQ_DESC_FLAGS_IPV4_CSUM_OK) ? 1 : 0;
160 *ipv6 = (desc->flags & CQ_ENET_RQ_DESC_FLAGS_IPV6) ? 1 : 0;
161 *ipv4 = (desc->flags & CQ_ENET_RQ_DESC_FLAGS_IPV4) ? 1 : 0;
162 *ipv4_fragment =
163 (desc->flags & CQ_ENET_RQ_DESC_FLAGS_IPV4_FRAGMENT) ? 1 : 0;
164 *fcs_ok = (desc->flags & CQ_ENET_RQ_DESC_FLAGS_FCS_OK) ? 1 : 0;
165}
166
167#endif /* _CQ_ENET_DESC_H_ */
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-28 07:44:30 -0500