1 | /* |
2 | * Copyright 2008-2015 Freescale Semiconductor Inc. |
3 | * |
4 | * Redistribution and use in source and binary forms, with or without |
5 | * modification, are permitted provided that the following conditions are met: |
6 | * * Redistributions of source code must retain the above copyright |
7 | * notice, this list of conditions and the following disclaimer. |
8 | * * Redistributions in binary form must reproduce the above copyright |
9 | * notice, this list of conditions and the following disclaimer in the |
10 | * documentation and/or other materials provided with the distribution. |
11 | * * Neither the name of Freescale Semiconductor nor the |
12 | * names of its contributors may be used to endorse or promote products |
13 | * derived from this software without specific prior written permission. |
14 | * |
15 | * |
16 | * ALTERNATIVELY, this software may be distributed under the terms of the |
17 | * GNU General Public License ("GPL") as published by the Free Software |
18 | * Foundation, either version 2 of that License or (at your option) any |
19 | * later version. |
20 | * |
21 | * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY |
22 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
23 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
24 | * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY |
25 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
26 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
27 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
28 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
29 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
30 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
31 | */ |
32 | |
33 | /* FM MAC ... */ |
34 | #ifndef __FM_MAC_H |
35 | #define __FM_MAC_H |
36 | |
37 | #include "fman.h" |
38 | |
39 | #include <linux/slab.h> |
40 | #include <linux/phy.h> |
41 | #include <linux/if_ether.h> |
42 | |
43 | struct fman_mac; |
44 | struct mac_device; |
45 | |
46 | /* Ethernet Address */ |
47 | typedef u8 enet_addr_t[ETH_ALEN]; |
48 | |
49 | #define ENET_ADDR_TO_UINT64(_enet_addr) \ |
50 | (u64)(((u64)(_enet_addr)[0] << 40) | \ |
51 | ((u64)(_enet_addr)[1] << 32) | \ |
52 | ((u64)(_enet_addr)[2] << 24) | \ |
53 | ((u64)(_enet_addr)[3] << 16) | \ |
54 | ((u64)(_enet_addr)[4] << 8) | \ |
55 | ((u64)(_enet_addr)[5])) |
56 | |
57 | #define MAKE_ENET_ADDR_FROM_UINT64(_addr64, _enet_addr) \ |
58 | do { \ |
59 | int i; \ |
60 | for (i = 0; i < ETH_ALEN; i++) \ |
61 | (_enet_addr)[i] = \ |
62 | (u8)((_addr64) >> ((5 - i) * 8)); \ |
63 | } while (0) |
64 | |
65 | /* defaults */ |
66 | #define DEFAULT_RESET_ON_INIT false |
67 | |
68 | /* PFC defines */ |
69 | #define FSL_FM_PAUSE_TIME_ENABLE 0xf000 |
70 | #define FSL_FM_PAUSE_TIME_DISABLE 0 |
71 | #define FSL_FM_PAUSE_THRESH_DEFAULT 0 |
72 | |
73 | #define FM_MAC_NO_PFC 0xff |
74 | |
75 | /* HASH defines */ |
76 | #define ETH_HASH_ENTRY_OBJ(ptr) \ |
77 | hlist_entry_safe(ptr, struct eth_hash_entry, node) |
78 | |
79 | /* FM MAC Exceptions */ |
80 | enum fman_mac_exceptions { |
81 | FM_MAC_EX_10G_MDIO_SCAN_EVENT = 0 |
82 | /* 10GEC MDIO scan event interrupt */ |
83 | , FM_MAC_EX_10G_MDIO_CMD_CMPL |
84 | /* 10GEC MDIO command completion interrupt */ |
85 | , FM_MAC_EX_10G_REM_FAULT |
86 | /* 10GEC, mEMAC Remote fault interrupt */ |
87 | , FM_MAC_EX_10G_LOC_FAULT |
88 | /* 10GEC, mEMAC Local fault interrupt */ |
89 | , FM_MAC_EX_10G_TX_ECC_ER |
90 | /* 10GEC, mEMAC Transmit frame ECC error interrupt */ |
91 | , FM_MAC_EX_10G_TX_FIFO_UNFL |
92 | /* 10GEC, mEMAC Transmit FIFO underflow interrupt */ |
93 | , FM_MAC_EX_10G_TX_FIFO_OVFL |
94 | /* 10GEC, mEMAC Transmit FIFO overflow interrupt */ |
95 | , FM_MAC_EX_10G_TX_ER |
96 | /* 10GEC Transmit frame error interrupt */ |
97 | , FM_MAC_EX_10G_RX_FIFO_OVFL |
98 | /* 10GEC, mEMAC Receive FIFO overflow interrupt */ |
99 | , FM_MAC_EX_10G_RX_ECC_ER |
100 | /* 10GEC, mEMAC Receive frame ECC error interrupt */ |
101 | , FM_MAC_EX_10G_RX_JAB_FRM |
102 | /* 10GEC Receive jabber frame interrupt */ |
103 | , FM_MAC_EX_10G_RX_OVRSZ_FRM |
104 | /* 10GEC Receive oversized frame interrupt */ |
105 | , FM_MAC_EX_10G_RX_RUNT_FRM |
106 | /* 10GEC Receive runt frame interrupt */ |
107 | , FM_MAC_EX_10G_RX_FRAG_FRM |
108 | /* 10GEC Receive fragment frame interrupt */ |
109 | , FM_MAC_EX_10G_RX_LEN_ER |
110 | /* 10GEC Receive payload length error interrupt */ |
111 | , FM_MAC_EX_10G_RX_CRC_ER |
112 | /* 10GEC Receive CRC error interrupt */ |
113 | , FM_MAC_EX_10G_RX_ALIGN_ER |
114 | /* 10GEC Receive alignment error interrupt */ |
115 | , FM_MAC_EX_1G_BAB_RX |
116 | /* dTSEC Babbling receive error */ |
117 | , FM_MAC_EX_1G_RX_CTL |
118 | /* dTSEC Receive control (pause frame) interrupt */ |
119 | , FM_MAC_EX_1G_GRATEFUL_TX_STP_COMPLET |
120 | /* dTSEC Graceful transmit stop complete */ |
121 | , FM_MAC_EX_1G_BAB_TX |
122 | /* dTSEC Babbling transmit error */ |
123 | , FM_MAC_EX_1G_TX_CTL |
124 | /* dTSEC Transmit control (pause frame) interrupt */ |
125 | , FM_MAC_EX_1G_TX_ERR |
126 | /* dTSEC Transmit error */ |
127 | , FM_MAC_EX_1G_LATE_COL |
128 | /* dTSEC Late collision */ |
129 | , FM_MAC_EX_1G_COL_RET_LMT |
130 | /* dTSEC Collision retry limit */ |
131 | , FM_MAC_EX_1G_TX_FIFO_UNDRN |
132 | /* dTSEC Transmit FIFO underrun */ |
133 | , FM_MAC_EX_1G_MAG_PCKT |
134 | /* dTSEC Magic Packet detection */ |
135 | , FM_MAC_EX_1G_MII_MNG_RD_COMPLET |
136 | /* dTSEC MII management read completion */ |
137 | , FM_MAC_EX_1G_MII_MNG_WR_COMPLET |
138 | /* dTSEC MII management write completion */ |
139 | , FM_MAC_EX_1G_GRATEFUL_RX_STP_COMPLET |
140 | /* dTSEC Graceful receive stop complete */ |
141 | , FM_MAC_EX_1G_DATA_ERR |
142 | /* dTSEC Internal data error on transmit */ |
143 | , FM_MAC_1G_RX_DATA_ERR |
144 | /* dTSEC Internal data error on receive */ |
145 | , FM_MAC_EX_1G_1588_TS_RX_ERR |
146 | /* dTSEC Time-Stamp Receive Error */ |
147 | , FM_MAC_EX_1G_RX_MIB_CNT_OVFL |
148 | /* dTSEC MIB counter overflow */ |
149 | , FM_MAC_EX_TS_FIFO_ECC_ERR |
150 | /* mEMAC Time-stamp FIFO ECC error interrupt; |
151 | * not supported on T4240/B4860 rev1 chips |
152 | */ |
153 | , FM_MAC_EX_MAGIC_PACKET_INDICATION = FM_MAC_EX_1G_MAG_PCKT |
154 | /* mEMAC Magic Packet Indication Interrupt */ |
155 | }; |
156 | |
157 | struct eth_hash_entry { |
158 | u64 addr; /* Ethernet Address */ |
159 | struct list_head node; |
160 | }; |
161 | |
162 | typedef void (fman_mac_exception_cb)(struct mac_device *dev_id, |
163 | enum fman_mac_exceptions exceptions); |
164 | |
165 | /* FMan MAC config input */ |
166 | struct fman_mac_params { |
167 | /* MAC ID; numbering of dTSEC and 1G-mEMAC: |
168 | * 0 - FM_MAX_NUM_OF_1G_MACS; |
169 | * numbering of 10G-MAC (TGEC) and 10G-mEMAC: |
170 | * 0 - FM_MAX_NUM_OF_10G_MACS |
171 | */ |
172 | u8 mac_id; |
173 | /* A handle to the FM object this port related to */ |
174 | void *fm; |
175 | fman_mac_exception_cb *event_cb; /* MDIO Events Callback Routine */ |
176 | fman_mac_exception_cb *exception_cb;/* Exception Callback Routine */ |
177 | }; |
178 | |
179 | struct eth_hash_t { |
180 | u16 size; |
181 | struct list_head *lsts; |
182 | }; |
183 | |
184 | static inline struct eth_hash_entry |
185 | *dequeue_addr_from_hash_entry(struct list_head *addr_lst) |
186 | { |
187 | struct eth_hash_entry *hash_entry = NULL; |
188 | |
189 | if (!list_empty(head: addr_lst)) { |
190 | hash_entry = ETH_HASH_ENTRY_OBJ(addr_lst->next); |
191 | list_del_init(entry: &hash_entry->node); |
192 | } |
193 | return hash_entry; |
194 | } |
195 | |
196 | static inline void free_hash_table(struct eth_hash_t *hash) |
197 | { |
198 | struct eth_hash_entry *hash_entry; |
199 | int i = 0; |
200 | |
201 | if (hash) { |
202 | if (hash->lsts) { |
203 | for (i = 0; i < hash->size; i++) { |
204 | hash_entry = |
205 | dequeue_addr_from_hash_entry(addr_lst: &hash->lsts[i]); |
206 | while (hash_entry) { |
207 | kfree(objp: hash_entry); |
208 | hash_entry = |
209 | dequeue_addr_from_hash_entry(addr_lst: &hash-> |
210 | lsts[i]); |
211 | } |
212 | } |
213 | |
214 | kfree(objp: hash->lsts); |
215 | } |
216 | |
217 | kfree(objp: hash); |
218 | } |
219 | } |
220 | |
221 | static inline struct eth_hash_t *alloc_hash_table(u16 size) |
222 | { |
223 | u32 i; |
224 | struct eth_hash_t *hash; |
225 | |
226 | /* Allocate address hash table */ |
227 | hash = kmalloc(size: sizeof(*hash), GFP_KERNEL); |
228 | if (!hash) |
229 | return NULL; |
230 | |
231 | hash->size = size; |
232 | |
233 | hash->lsts = kmalloc_array(n: hash->size, size: sizeof(struct list_head), |
234 | GFP_KERNEL); |
235 | if (!hash->lsts) { |
236 | kfree(objp: hash); |
237 | return NULL; |
238 | } |
239 | |
240 | for (i = 0; i < hash->size; i++) |
241 | INIT_LIST_HEAD(list: &hash->lsts[i]); |
242 | |
243 | return hash; |
244 | } |
245 | |
246 | #endif /* __FM_MAC_H */ |
247 | |