1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*******************************************************************************
3 Header File to describe the DMA descriptors and related definitions.
4 This is for DWMAC100 and 1000 cores.
7 Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
8 *******************************************************************************/
13 #include <linux/bitops.h>
15 /* Normal receive descriptor defines */
18 #define RDES0_PAYLOAD_CSUM_ERR BIT(0)
19 #define RDES0_CRC_ERROR BIT(1)
20 #define RDES0_DRIBBLING BIT(2)
21 #define RDES0_MII_ERROR BIT(3)
22 #define RDES0_RECEIVE_WATCHDOG BIT(4)
23 #define RDES0_FRAME_TYPE BIT(5)
24 #define RDES0_COLLISION BIT(6)
25 #define RDES0_IPC_CSUM_ERROR BIT(7)
26 #define RDES0_LAST_DESCRIPTOR BIT(8)
27 #define RDES0_FIRST_DESCRIPTOR BIT(9)
28 #define RDES0_VLAN_TAG BIT(10)
29 #define RDES0_OVERFLOW_ERROR BIT(11)
30 #define RDES0_LENGTH_ERROR BIT(12)
31 #define RDES0_SA_FILTER_FAIL BIT(13)
32 #define RDES0_DESCRIPTOR_ERROR BIT(14)
33 #define RDES0_ERROR_SUMMARY BIT(15)
34 #define RDES0_FRAME_LEN_MASK GENMASK(29, 16)
35 #define RDES0_FRAME_LEN_SHIFT 16
36 #define RDES0_DA_FILTER_FAIL BIT(30)
37 #define RDES0_OWN BIT(31)
39 #define RDES1_BUFFER1_SIZE_MASK GENMASK(10, 0)
40 #define RDES1_BUFFER2_SIZE_MASK GENMASK(21, 11)
41 #define RDES1_BUFFER2_SIZE_SHIFT 11
42 #define RDES1_SECOND_ADDRESS_CHAINED BIT(24)
43 #define RDES1_END_RING BIT(25)
44 #define RDES1_DISABLE_IC BIT(31)
46 /* Enhanced receive descriptor defines */
48 /* RDES0 (similar to normal RDES) */
49 #define ERDES0_RX_MAC_ADDR BIT(0)
51 /* RDES1: completely differ from normal desc definitions */
52 #define ERDES1_BUFFER1_SIZE_MASK GENMASK(12, 0)
53 #define ERDES1_SECOND_ADDRESS_CHAINED BIT(14)
54 #define ERDES1_END_RING BIT(15)
55 #define ERDES1_BUFFER2_SIZE_MASK GENMASK(28, 16)
56 #define ERDES1_BUFFER2_SIZE_SHIFT 16
57 #define ERDES1_DISABLE_IC BIT(31)
59 /* Normal transmit descriptor defines */
61 #define TDES0_DEFERRED BIT(0)
62 #define TDES0_UNDERFLOW_ERROR BIT(1)
63 #define TDES0_EXCESSIVE_DEFERRAL BIT(2)
64 #define TDES0_COLLISION_COUNT_MASK GENMASK(6, 3)
65 #define TDES0_VLAN_FRAME BIT(7)
66 #define TDES0_EXCESSIVE_COLLISIONS BIT(8)
67 #define TDES0_LATE_COLLISION BIT(9)
68 #define TDES0_NO_CARRIER BIT(10)
69 #define TDES0_LOSS_CARRIER BIT(11)
70 #define TDES0_PAYLOAD_ERROR BIT(12)
71 #define TDES0_FRAME_FLUSHED BIT(13)
72 #define TDES0_JABBER_TIMEOUT BIT(14)
73 #define TDES0_ERROR_SUMMARY BIT(15)
74 #define TDES0_IP_HEADER_ERROR BIT(16)
75 #define TDES0_TIME_STAMP_STATUS BIT(17)
76 #define TDES0_OWN ((u32)BIT(31)) /* silence sparse */
78 #define TDES1_BUFFER1_SIZE_MASK GENMASK(10, 0)
79 #define TDES1_BUFFER2_SIZE_MASK GENMASK(21, 11)
80 #define TDES1_BUFFER2_SIZE_SHIFT 11
81 #define TDES1_TIME_STAMP_ENABLE BIT(22)
82 #define TDES1_DISABLE_PADDING BIT(23)
83 #define TDES1_SECOND_ADDRESS_CHAINED BIT(24)
84 #define TDES1_END_RING BIT(25)
85 #define TDES1_CRC_DISABLE BIT(26)
86 #define TDES1_CHECKSUM_INSERTION_MASK GENMASK(28, 27)
87 #define TDES1_CHECKSUM_INSERTION_SHIFT 27
88 #define TDES1_FIRST_SEGMENT BIT(29)
89 #define TDES1_LAST_SEGMENT BIT(30)
90 #define TDES1_INTERRUPT BIT(31)
92 /* Enhanced transmit descriptor defines */
94 #define ETDES0_DEFERRED BIT(0)
95 #define ETDES0_UNDERFLOW_ERROR BIT(1)
96 #define ETDES0_EXCESSIVE_DEFERRAL BIT(2)
97 #define ETDES0_COLLISION_COUNT_MASK GENMASK(6, 3)
98 #define ETDES0_VLAN_FRAME BIT(7)
99 #define ETDES0_EXCESSIVE_COLLISIONS BIT(8)
100 #define ETDES0_LATE_COLLISION BIT(9)
101 #define ETDES0_NO_CARRIER BIT(10)
102 #define ETDES0_LOSS_CARRIER BIT(11)
103 #define ETDES0_PAYLOAD_ERROR BIT(12)
104 #define ETDES0_FRAME_FLUSHED BIT(13)
105 #define ETDES0_JABBER_TIMEOUT BIT(14)
106 #define ETDES0_ERROR_SUMMARY BIT(15)
107 #define ETDES0_IP_HEADER_ERROR BIT(16)
108 #define ETDES0_TIME_STAMP_STATUS BIT(17)
109 #define ETDES0_SECOND_ADDRESS_CHAINED BIT(20)
110 #define ETDES0_END_RING BIT(21)
111 #define ETDES0_CHECKSUM_INSERTION_MASK GENMASK(23, 22)
112 #define ETDES0_CHECKSUM_INSERTION_SHIFT 22
113 #define ETDES0_TIME_STAMP_ENABLE BIT(25)
114 #define ETDES0_DISABLE_PADDING BIT(26)
115 #define ETDES0_CRC_DISABLE BIT(27)
116 #define ETDES0_FIRST_SEGMENT BIT(28)
117 #define ETDES0_LAST_SEGMENT BIT(29)
118 #define ETDES0_INTERRUPT BIT(30)
119 #define ETDES0_OWN ((u32)BIT(31)) /* silence sparse */
121 #define ETDES1_BUFFER1_SIZE_MASK GENMASK(12, 0)
122 #define ETDES1_BUFFER2_SIZE_MASK GENMASK(28, 16)
123 #define ETDES1_BUFFER2_SIZE_SHIFT 16
125 /* Extended Receive descriptor definitions */
126 #define ERDES4_IP_PAYLOAD_TYPE_MASK GENMASK(6, 2)
127 #define ERDES4_IP_HDR_ERR BIT(3)
128 #define ERDES4_IP_PAYLOAD_ERR BIT(4)
129 #define ERDES4_IP_CSUM_BYPASSED BIT(5)
130 #define ERDES4_IPV4_PKT_RCVD BIT(6)
131 #define ERDES4_IPV6_PKT_RCVD BIT(7)
132 #define ERDES4_MSG_TYPE_MASK GENMASK(11, 8)
133 #define ERDES4_PTP_FRAME_TYPE BIT(12)
134 #define ERDES4_PTP_VER BIT(13)
135 #define ERDES4_TIMESTAMP_DROPPED BIT(14)
136 #define ERDES4_AV_PKT_RCVD BIT(16)
137 #define ERDES4_AV_TAGGED_PKT_RCVD BIT(17)
138 #define ERDES4_VLAN_TAG_PRI_VAL_MASK GENMASK(20, 18)
139 #define ERDES4_L3_FILTER_MATCH BIT(24)
140 #define ERDES4_L4_FILTER_MATCH BIT(25)
141 #define ERDES4_L3_L4_FILT_NO_MATCH_MASK GENMASK(27, 26)
143 /* Extended RDES4 message type definitions */
144 #define RDES_EXT_NO_PTP 0x0
145 #define RDES_EXT_SYNC 0x1
146 #define RDES_EXT_FOLLOW_UP 0x2
147 #define RDES_EXT_DELAY_REQ 0x3
148 #define RDES_EXT_DELAY_RESP 0x4
149 #define RDES_EXT_PDELAY_REQ 0x5
150 #define RDES_EXT_PDELAY_RESP 0x6
151 #define RDES_EXT_PDELAY_FOLLOW_UP 0x7
152 #define RDES_PTP_ANNOUNCE 0x8
153 #define RDES_PTP_MANAGEMENT 0x9
154 #define RDES_PTP_SIGNALING 0xa
155 #define RDES_PTP_PKT_RESERVED_TYPE 0xf
157 /* Basic descriptor structure for normal and alternate descriptors */
165 /* Extended descriptor structure (e.g. >= databook 3.50a) */
166 struct dma_extended_desc {
167 struct dma_desc basic; /* Basic descriptors */
168 __le32 des4; /* Extended Status */
169 __le32 des5; /* Reserved */
170 __le32 des6; /* Tx/Rx Timestamp Low */
171 __le32 des7; /* Tx/Rx Timestamp High */
174 /* Enhanced descriptor for TBS */
180 struct dma_desc basic;
183 /* Transmit checksum insertion control */
184 #define TX_CIC_FULL 3 /* Include IP header and pseudoheader */
186 #endif /* __DESCS_H__ */