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gerrit-public.fairphone.software / kernel / msm-4.19 / 4f01358e5b8a4b0f67cfc7bf785756193006de96 / . / drivers / net / stmmac / descs.h
blob: 63a03e26469442b77e528027932c9e570a51392b [file] [log] [blame]
Giuseppe Cavallaro47dd7a52009-10-14 15:13:45 -0700[diff] [blame]1/*******************************************************************************
Giuseppe CAVALLARO21d437c2010-01-06 23:07:20 +0000[diff] [blame]2 Header File to describe the DMA descriptors.
3 Enhanced descriptors have been in case of DWMAC1000 Cores.
Giuseppe Cavallaro47dd7a52009-10-14 15:13:45 -0700[diff] [blame]4
5 This program is free software; you can redistribute it and/or modify it
6 under the terms and conditions of the GNU General Public License,
7 version 2, as published by the Free Software Foundation.
8
9 This program is distributed in the hope it will be useful, but WITHOUT
10 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 more details.
13
14 You should have received a copy of the GNU General Public License along with
15 this program; if not, write to the Free Software Foundation, Inc.,
16 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
17
18 The full GNU General Public License is included in this distribution in
19 the file called "COPYING".
20
21 Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
22*******************************************************************************/
23struct dma_desc {
24 /* Receive descriptor */
25 union {
26 struct {
27 /* RDES0 */
28 u32 reserved1:1;
29 u32 crc_error:1;
30 u32 dribbling:1;
31 u32 mii_error:1;
32 u32 receive_watchdog:1;
33 u32 frame_type:1;
34 u32 collision:1;
35 u32 frame_too_long:1;
36 u32 last_descriptor:1;
37 u32 first_descriptor:1;
38 u32 multicast_frame:1;
39 u32 run_frame:1;
40 u32 length_error:1;
41 u32 partial_frame_error:1;
42 u32 descriptor_error:1;
43 u32 error_summary:1;
44 u32 frame_length:14;
45 u32 filtering_fail:1;
46 u32 own:1;
47 /* RDES1 */
48 u32 buffer1_size:11;
49 u32 buffer2_size:11;
50 u32 reserved2:2;
51 u32 second_address_chained:1;
52 u32 end_ring:1;
53 u32 reserved3:5;
54 u32 disable_ic:1;
55 } rx;
56 struct {
57 /* RDES0 */
58 u32 payload_csum_error:1;
59 u32 crc_error:1;
60 u32 dribbling:1;
61 u32 error_gmii:1;
62 u32 receive_watchdog:1;
63 u32 frame_type:1;
64 u32 late_collision:1;
65 u32 ipc_csum_error:1;
66 u32 last_descriptor:1;
67 u32 first_descriptor:1;
68 u32 vlan_tag:1;
69 u32 overflow_error:1;
70 u32 length_error:1;
71 u32 sa_filter_fail:1;
72 u32 descriptor_error:1;
73 u32 error_summary:1;
74 u32 frame_length:14;
75 u32 da_filter_fail:1;
76 u32 own:1;
77 /* RDES1 */
78 u32 buffer1_size:13;
79 u32 reserved1:1;
80 u32 second_address_chained:1;
81 u32 end_ring:1;
82 u32 buffer2_size:13;
83 u32 reserved2:2;
84 u32 disable_ic:1;
85 } erx; /* -- enhanced -- */
86
87 /* Transmit descriptor */
88 struct {
89 /* TDES0 */
90 u32 deferred:1;
91 u32 underflow_error:1;
92 u32 excessive_deferral:1;
93 u32 collision_count:4;
94 u32 heartbeat_fail:1;
95 u32 excessive_collisions:1;
96 u32 late_collision:1;
97 u32 no_carrier:1;
98 u32 loss_carrier:1;
99 u32 reserved1:3;
100 u32 error_summary:1;
101 u32 reserved2:15;
102 u32 own:1;
103 /* TDES1 */
104 u32 buffer1_size:11;
105 u32 buffer2_size:11;
106 u32 reserved3:1;
107 u32 disable_padding:1;
108 u32 second_address_chained:1;
109 u32 end_ring:1;
110 u32 crc_disable:1;
111 u32 reserved4:2;
112 u32 first_segment:1;
113 u32 last_segment:1;
114 u32 interrupt:1;
115 } tx;
116 struct {
117 /* TDES0 */
118 u32 deferred:1;
119 u32 underflow_error:1;
120 u32 excessive_deferral:1;
121 u32 collision_count:4;
122 u32 vlan_frame:1;
123 u32 excessive_collisions:1;
124 u32 late_collision:1;
125 u32 no_carrier:1;
126 u32 loss_carrier:1;
127 u32 payload_error:1;
128 u32 frame_flushed:1;
129 u32 jabber_timeout:1;
130 u32 error_summary:1;
131 u32 ip_header_error:1;
132 u32 time_stamp_status:1;
133 u32 reserved1:2;
134 u32 second_address_chained:1;
135 u32 end_ring:1;
136 u32 checksum_insertion:2;
137 u32 reserved2:1;
138 u32 time_stamp_enable:1;
139 u32 disable_padding:1;
140 u32 crc_disable:1;
141 u32 first_segment:1;
142 u32 last_segment:1;
143 u32 interrupt:1;
144 u32 own:1;
145 /* TDES1 */
146 u32 buffer1_size:13;
147 u32 reserved3:3;
148 u32 buffer2_size:13;
149 u32 reserved4:3;
150 } etx; /* -- enhanced -- */
151 } des01;
152 unsigned int des2;
153 unsigned int des3;
154};
155
156/* Transmit checksum insertion control */
157enum tdes_csum_insertion {
158 cic_disabled = 0, /* Checksum Insertion Control */
159 cic_only_ip = 1, /* Only IP header */
160 cic_no_pseudoheader = 2, /* IP header but pseudoheader
161 * is not calculated */
162 cic_full = 3, /* IP header and pseudoheader */
163};