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df828598 M |
1 | /* |
2 | * Texas Instruments Ethernet Switch Driver | |
3 | * | |
4 | * Copyright (C) 2012 Texas Instruments | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License as | |
8 | * published by the Free Software Foundation version 2. | |
9 | * | |
10 | * This program is distributed "as is" WITHOUT ANY WARRANTY of any | |
11 | * kind, whether express or implied; without even the implied warranty | |
12 | * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | */ | |
15 | ||
16 | #include <linux/kernel.h> | |
17 | #include <linux/io.h> | |
18 | #include <linux/clk.h> | |
19 | #include <linux/timer.h> | |
20 | #include <linux/module.h> | |
21 | #include <linux/platform_device.h> | |
22 | #include <linux/irqreturn.h> | |
23 | #include <linux/interrupt.h> | |
24 | #include <linux/if_ether.h> | |
25 | #include <linux/etherdevice.h> | |
26 | #include <linux/netdevice.h> | |
2e5b38ab | 27 | #include <linux/net_tstamp.h> |
df828598 M |
28 | #include <linux/phy.h> |
29 | #include <linux/workqueue.h> | |
30 | #include <linux/delay.h> | |
f150bd7f | 31 | #include <linux/pm_runtime.h> |
2eb32b0a M |
32 | #include <linux/of.h> |
33 | #include <linux/of_net.h> | |
34 | #include <linux/of_device.h> | |
3b72c2fe | 35 | #include <linux/if_vlan.h> |
0ba517b1 MP |
36 | #include <linux/mfd/syscon.h> |
37 | #include <linux/regmap.h> | |
df828598 | 38 | |
739683b4 | 39 | #include <linux/pinctrl/consumer.h> |
df828598 | 40 | |
dbe34724 | 41 | #include "cpsw.h" |
df828598 | 42 | #include "cpsw_ale.h" |
2e5b38ab | 43 | #include "cpts.h" |
df828598 M |
44 | #include "davinci_cpdma.h" |
45 | ||
46 | #define CPSW_DEBUG (NETIF_MSG_HW | NETIF_MSG_WOL | \ | |
47 | NETIF_MSG_DRV | NETIF_MSG_LINK | \ | |
48 | NETIF_MSG_IFUP | NETIF_MSG_INTR | \ | |
49 | NETIF_MSG_PROBE | NETIF_MSG_TIMER | \ | |
50 | NETIF_MSG_IFDOWN | NETIF_MSG_RX_ERR | \ | |
51 | NETIF_MSG_TX_ERR | NETIF_MSG_TX_DONE | \ | |
52 | NETIF_MSG_PKTDATA | NETIF_MSG_TX_QUEUED | \ | |
53 | NETIF_MSG_RX_STATUS) | |
54 | ||
55 | #define cpsw_info(priv, type, format, ...) \ | |
56 | do { \ | |
57 | if (netif_msg_##type(priv) && net_ratelimit()) \ | |
58 | dev_info(priv->dev, format, ## __VA_ARGS__); \ | |
59 | } while (0) | |
60 | ||
61 | #define cpsw_err(priv, type, format, ...) \ | |
62 | do { \ | |
63 | if (netif_msg_##type(priv) && net_ratelimit()) \ | |
64 | dev_err(priv->dev, format, ## __VA_ARGS__); \ | |
65 | } while (0) | |
66 | ||
67 | #define cpsw_dbg(priv, type, format, ...) \ | |
68 | do { \ | |
69 | if (netif_msg_##type(priv) && net_ratelimit()) \ | |
70 | dev_dbg(priv->dev, format, ## __VA_ARGS__); \ | |
71 | } while (0) | |
72 | ||
73 | #define cpsw_notice(priv, type, format, ...) \ | |
74 | do { \ | |
75 | if (netif_msg_##type(priv) && net_ratelimit()) \ | |
76 | dev_notice(priv->dev, format, ## __VA_ARGS__); \ | |
77 | } while (0) | |
78 | ||
5c50a856 M |
79 | #define ALE_ALL_PORTS 0x7 |
80 | ||
df828598 M |
81 | #define CPSW_MAJOR_VERSION(reg) (reg >> 8 & 0x7) |
82 | #define CPSW_MINOR_VERSION(reg) (reg & 0xff) | |
83 | #define CPSW_RTL_VERSION(reg) ((reg >> 11) & 0x1f) | |
84 | ||
e90cfac6 RC |
85 | #define CPSW_VERSION_1 0x19010a |
86 | #define CPSW_VERSION_2 0x19010c | |
c193f365 | 87 | #define CPSW_VERSION_3 0x19010f |
926489be | 88 | #define CPSW_VERSION_4 0x190112 |
549985ee RC |
89 | |
90 | #define HOST_PORT_NUM 0 | |
91 | #define SLIVER_SIZE 0x40 | |
92 | ||
93 | #define CPSW1_HOST_PORT_OFFSET 0x028 | |
94 | #define CPSW1_SLAVE_OFFSET 0x050 | |
95 | #define CPSW1_SLAVE_SIZE 0x040 | |
96 | #define CPSW1_CPDMA_OFFSET 0x100 | |
97 | #define CPSW1_STATERAM_OFFSET 0x200 | |
d9718546 | 98 | #define CPSW1_HW_STATS 0x400 |
549985ee RC |
99 | #define CPSW1_CPTS_OFFSET 0x500 |
100 | #define CPSW1_ALE_OFFSET 0x600 | |
101 | #define CPSW1_SLIVER_OFFSET 0x700 | |
102 | ||
103 | #define CPSW2_HOST_PORT_OFFSET 0x108 | |
104 | #define CPSW2_SLAVE_OFFSET 0x200 | |
105 | #define CPSW2_SLAVE_SIZE 0x100 | |
106 | #define CPSW2_CPDMA_OFFSET 0x800 | |
d9718546 | 107 | #define CPSW2_HW_STATS 0x900 |
549985ee RC |
108 | #define CPSW2_STATERAM_OFFSET 0xa00 |
109 | #define CPSW2_CPTS_OFFSET 0xc00 | |
110 | #define CPSW2_ALE_OFFSET 0xd00 | |
111 | #define CPSW2_SLIVER_OFFSET 0xd80 | |
112 | #define CPSW2_BD_OFFSET 0x2000 | |
113 | ||
df828598 M |
114 | #define CPDMA_RXTHRESH 0x0c0 |
115 | #define CPDMA_RXFREE 0x0e0 | |
116 | #define CPDMA_TXHDP 0x00 | |
117 | #define CPDMA_RXHDP 0x20 | |
118 | #define CPDMA_TXCP 0x40 | |
119 | #define CPDMA_RXCP 0x60 | |
120 | ||
df828598 M |
121 | #define CPSW_POLL_WEIGHT 64 |
122 | #define CPSW_MIN_PACKET_SIZE 60 | |
123 | #define CPSW_MAX_PACKET_SIZE (1500 + 14 + 4 + 4) | |
124 | ||
125 | #define RX_PRIORITY_MAPPING 0x76543210 | |
126 | #define TX_PRIORITY_MAPPING 0x33221100 | |
127 | #define CPDMA_TX_PRIORITY_MAP 0x76543210 | |
128 | ||
3b72c2fe M |
129 | #define CPSW_VLAN_AWARE BIT(1) |
130 | #define CPSW_ALE_VLAN_AWARE 1 | |
131 | ||
35717d8d JO |
132 | #define CPSW_FIFO_NORMAL_MODE (0 << 16) |
133 | #define CPSW_FIFO_DUAL_MAC_MODE (1 << 16) | |
134 | #define CPSW_FIFO_RATE_LIMIT_MODE (2 << 16) | |
d9ba8f9e | 135 | |
ff5b8ef2 M |
136 | #define CPSW_INTPACEEN (0x3f << 16) |
137 | #define CPSW_INTPRESCALE_MASK (0x7FF << 0) | |
138 | #define CPSW_CMINTMAX_CNT 63 | |
139 | #define CPSW_CMINTMIN_CNT 2 | |
140 | #define CPSW_CMINTMAX_INTVL (1000 / CPSW_CMINTMIN_CNT) | |
141 | #define CPSW_CMINTMIN_INTVL ((1000 / CPSW_CMINTMAX_CNT) + 1) | |
142 | ||
df828598 M |
143 | #define cpsw_enable_irq(priv) \ |
144 | do { \ | |
145 | u32 i; \ | |
146 | for (i = 0; i < priv->num_irqs; i++) \ | |
147 | enable_irq(priv->irqs_table[i]); \ | |
5f47dfb4 | 148 | } while (0) |
df828598 M |
149 | #define cpsw_disable_irq(priv) \ |
150 | do { \ | |
151 | u32 i; \ | |
152 | for (i = 0; i < priv->num_irqs; i++) \ | |
153 | disable_irq_nosync(priv->irqs_table[i]); \ | |
5f47dfb4 | 154 | } while (0) |
df828598 | 155 | |
d3bb9c58 M |
156 | #define cpsw_slave_index(priv) \ |
157 | ((priv->data.dual_emac) ? priv->emac_port : \ | |
158 | priv->data.active_slave) | |
159 | ||
df828598 M |
160 | static int debug_level; |
161 | module_param(debug_level, int, 0); | |
162 | MODULE_PARM_DESC(debug_level, "cpsw debug level (NETIF_MSG bits)"); | |
163 | ||
164 | static int ale_ageout = 10; | |
165 | module_param(ale_ageout, int, 0); | |
166 | MODULE_PARM_DESC(ale_ageout, "cpsw ale ageout interval (seconds)"); | |
167 | ||
168 | static int rx_packet_max = CPSW_MAX_PACKET_SIZE; | |
169 | module_param(rx_packet_max, int, 0); | |
170 | MODULE_PARM_DESC(rx_packet_max, "maximum receive packet size (bytes)"); | |
171 | ||
996a5c27 | 172 | struct cpsw_wr_regs { |
df828598 M |
173 | u32 id_ver; |
174 | u32 soft_reset; | |
175 | u32 control; | |
176 | u32 int_control; | |
177 | u32 rx_thresh_en; | |
178 | u32 rx_en; | |
179 | u32 tx_en; | |
180 | u32 misc_en; | |
ff5b8ef2 M |
181 | u32 mem_allign1[8]; |
182 | u32 rx_thresh_stat; | |
183 | u32 rx_stat; | |
184 | u32 tx_stat; | |
185 | u32 misc_stat; | |
186 | u32 mem_allign2[8]; | |
187 | u32 rx_imax; | |
188 | u32 tx_imax; | |
189 | ||
df828598 M |
190 | }; |
191 | ||
996a5c27 | 192 | struct cpsw_ss_regs { |
df828598 M |
193 | u32 id_ver; |
194 | u32 control; | |
195 | u32 soft_reset; | |
196 | u32 stat_port_en; | |
197 | u32 ptype; | |
bd357af2 RC |
198 | u32 soft_idle; |
199 | u32 thru_rate; | |
200 | u32 gap_thresh; | |
201 | u32 tx_start_wds; | |
202 | u32 flow_control; | |
203 | u32 vlan_ltype; | |
204 | u32 ts_ltype; | |
205 | u32 dlr_ltype; | |
df828598 M |
206 | }; |
207 | ||
9750a3ad RC |
208 | /* CPSW_PORT_V1 */ |
209 | #define CPSW1_MAX_BLKS 0x00 /* Maximum FIFO Blocks */ | |
210 | #define CPSW1_BLK_CNT 0x04 /* FIFO Block Usage Count (Read Only) */ | |
211 | #define CPSW1_TX_IN_CTL 0x08 /* Transmit FIFO Control */ | |
212 | #define CPSW1_PORT_VLAN 0x0c /* VLAN Register */ | |
213 | #define CPSW1_TX_PRI_MAP 0x10 /* Tx Header Priority to Switch Pri Mapping */ | |
214 | #define CPSW1_TS_CTL 0x14 /* Time Sync Control */ | |
215 | #define CPSW1_TS_SEQ_LTYPE 0x18 /* Time Sync Sequence ID Offset and Msg Type */ | |
216 | #define CPSW1_TS_VLAN 0x1c /* Time Sync VLAN1 and VLAN2 */ | |
217 | ||
218 | /* CPSW_PORT_V2 */ | |
219 | #define CPSW2_CONTROL 0x00 /* Control Register */ | |
220 | #define CPSW2_MAX_BLKS 0x08 /* Maximum FIFO Blocks */ | |
221 | #define CPSW2_BLK_CNT 0x0c /* FIFO Block Usage Count (Read Only) */ | |
222 | #define CPSW2_TX_IN_CTL 0x10 /* Transmit FIFO Control */ | |
223 | #define CPSW2_PORT_VLAN 0x14 /* VLAN Register */ | |
224 | #define CPSW2_TX_PRI_MAP 0x18 /* Tx Header Priority to Switch Pri Mapping */ | |
225 | #define CPSW2_TS_SEQ_MTYPE 0x1c /* Time Sync Sequence ID Offset and Msg Type */ | |
226 | ||
227 | /* CPSW_PORT_V1 and V2 */ | |
228 | #define SA_LO 0x20 /* CPGMAC_SL Source Address Low */ | |
229 | #define SA_HI 0x24 /* CPGMAC_SL Source Address High */ | |
230 | #define SEND_PERCENT 0x28 /* Transmit Queue Send Percentages */ | |
231 | ||
232 | /* CPSW_PORT_V2 only */ | |
233 | #define RX_DSCP_PRI_MAP0 0x30 /* Rx DSCP Priority to Rx Packet Mapping */ | |
234 | #define RX_DSCP_PRI_MAP1 0x34 /* Rx DSCP Priority to Rx Packet Mapping */ | |
235 | #define RX_DSCP_PRI_MAP2 0x38 /* Rx DSCP Priority to Rx Packet Mapping */ | |
236 | #define RX_DSCP_PRI_MAP3 0x3c /* Rx DSCP Priority to Rx Packet Mapping */ | |
237 | #define RX_DSCP_PRI_MAP4 0x40 /* Rx DSCP Priority to Rx Packet Mapping */ | |
238 | #define RX_DSCP_PRI_MAP5 0x44 /* Rx DSCP Priority to Rx Packet Mapping */ | |
239 | #define RX_DSCP_PRI_MAP6 0x48 /* Rx DSCP Priority to Rx Packet Mapping */ | |
240 | #define RX_DSCP_PRI_MAP7 0x4c /* Rx DSCP Priority to Rx Packet Mapping */ | |
241 | ||
242 | /* Bit definitions for the CPSW2_CONTROL register */ | |
243 | #define PASS_PRI_TAGGED (1<<24) /* Pass Priority Tagged */ | |
244 | #define VLAN_LTYPE2_EN (1<<21) /* VLAN LTYPE 2 enable */ | |
245 | #define VLAN_LTYPE1_EN (1<<20) /* VLAN LTYPE 1 enable */ | |
246 | #define DSCP_PRI_EN (1<<16) /* DSCP Priority Enable */ | |
247 | #define TS_320 (1<<14) /* Time Sync Dest Port 320 enable */ | |
248 | #define TS_319 (1<<13) /* Time Sync Dest Port 319 enable */ | |
249 | #define TS_132 (1<<12) /* Time Sync Dest IP Addr 132 enable */ | |
250 | #define TS_131 (1<<11) /* Time Sync Dest IP Addr 131 enable */ | |
251 | #define TS_130 (1<<10) /* Time Sync Dest IP Addr 130 enable */ | |
252 | #define TS_129 (1<<9) /* Time Sync Dest IP Addr 129 enable */ | |
09c55372 GC |
253 | #define TS_TTL_NONZERO (1<<8) /* Time Sync Time To Live Non-zero enable */ |
254 | #define TS_ANNEX_F_EN (1<<6) /* Time Sync Annex F enable */ | |
9750a3ad RC |
255 | #define TS_ANNEX_D_EN (1<<4) /* Time Sync Annex D enable */ |
256 | #define TS_LTYPE2_EN (1<<3) /* Time Sync LTYPE 2 enable */ | |
257 | #define TS_LTYPE1_EN (1<<2) /* Time Sync LTYPE 1 enable */ | |
258 | #define TS_TX_EN (1<<1) /* Time Sync Transmit Enable */ | |
259 | #define TS_RX_EN (1<<0) /* Time Sync Receive Enable */ | |
260 | ||
09c55372 GC |
261 | #define CTRL_V2_TS_BITS \ |
262 | (TS_320 | TS_319 | TS_132 | TS_131 | TS_130 | TS_129 |\ | |
263 | TS_TTL_NONZERO | TS_ANNEX_D_EN | TS_LTYPE1_EN) | |
9750a3ad | 264 | |
09c55372 GC |
265 | #define CTRL_V2_ALL_TS_MASK (CTRL_V2_TS_BITS | TS_TX_EN | TS_RX_EN) |
266 | #define CTRL_V2_TX_TS_BITS (CTRL_V2_TS_BITS | TS_TX_EN) | |
267 | #define CTRL_V2_RX_TS_BITS (CTRL_V2_TS_BITS | TS_RX_EN) | |
268 | ||
269 | ||
270 | #define CTRL_V3_TS_BITS \ | |
271 | (TS_320 | TS_319 | TS_132 | TS_131 | TS_130 | TS_129 |\ | |
272 | TS_TTL_NONZERO | TS_ANNEX_F_EN | TS_ANNEX_D_EN |\ | |
273 | TS_LTYPE1_EN) | |
274 | ||
275 | #define CTRL_V3_ALL_TS_MASK (CTRL_V3_TS_BITS | TS_TX_EN | TS_RX_EN) | |
276 | #define CTRL_V3_TX_TS_BITS (CTRL_V3_TS_BITS | TS_TX_EN) | |
277 | #define CTRL_V3_RX_TS_BITS (CTRL_V3_TS_BITS | TS_RX_EN) | |
9750a3ad RC |
278 | |
279 | /* Bit definitions for the CPSW2_TS_SEQ_MTYPE register */ | |
280 | #define TS_SEQ_ID_OFFSET_SHIFT (16) /* Time Sync Sequence ID Offset */ | |
281 | #define TS_SEQ_ID_OFFSET_MASK (0x3f) | |
282 | #define TS_MSG_TYPE_EN_SHIFT (0) /* Time Sync Message Type Enable */ | |
283 | #define TS_MSG_TYPE_EN_MASK (0xffff) | |
284 | ||
285 | /* The PTP event messages - Sync, Delay_Req, Pdelay_Req, and Pdelay_Resp. */ | |
286 | #define EVENT_MSG_BITS ((1<<0) | (1<<1) | (1<<2) | (1<<3)) | |
df828598 | 287 | |
2e5b38ab RC |
288 | /* Bit definitions for the CPSW1_TS_CTL register */ |
289 | #define CPSW_V1_TS_RX_EN BIT(0) | |
290 | #define CPSW_V1_TS_TX_EN BIT(4) | |
291 | #define CPSW_V1_MSG_TYPE_OFS 16 | |
292 | ||
293 | /* Bit definitions for the CPSW1_TS_SEQ_LTYPE register */ | |
294 | #define CPSW_V1_SEQ_ID_OFS_SHIFT 16 | |
295 | ||
df828598 M |
296 | struct cpsw_host_regs { |
297 | u32 max_blks; | |
298 | u32 blk_cnt; | |
d9ba8f9e | 299 | u32 tx_in_ctl; |
df828598 M |
300 | u32 port_vlan; |
301 | u32 tx_pri_map; | |
302 | u32 cpdma_tx_pri_map; | |
303 | u32 cpdma_rx_chan_map; | |
304 | }; | |
305 | ||
306 | struct cpsw_sliver_regs { | |
307 | u32 id_ver; | |
308 | u32 mac_control; | |
309 | u32 mac_status; | |
310 | u32 soft_reset; | |
311 | u32 rx_maxlen; | |
312 | u32 __reserved_0; | |
313 | u32 rx_pause; | |
314 | u32 tx_pause; | |
315 | u32 __reserved_1; | |
316 | u32 rx_pri_map; | |
317 | }; | |
318 | ||
d9718546 M |
319 | struct cpsw_hw_stats { |
320 | u32 rxgoodframes; | |
321 | u32 rxbroadcastframes; | |
322 | u32 rxmulticastframes; | |
323 | u32 rxpauseframes; | |
324 | u32 rxcrcerrors; | |
325 | u32 rxaligncodeerrors; | |
326 | u32 rxoversizedframes; | |
327 | u32 rxjabberframes; | |
328 | u32 rxundersizedframes; | |
329 | u32 rxfragments; | |
330 | u32 __pad_0[2]; | |
331 | u32 rxoctets; | |
332 | u32 txgoodframes; | |
333 | u32 txbroadcastframes; | |
334 | u32 txmulticastframes; | |
335 | u32 txpauseframes; | |
336 | u32 txdeferredframes; | |
337 | u32 txcollisionframes; | |
338 | u32 txsinglecollframes; | |
339 | u32 txmultcollframes; | |
340 | u32 txexcessivecollisions; | |
341 | u32 txlatecollisions; | |
342 | u32 txunderrun; | |
343 | u32 txcarriersenseerrors; | |
344 | u32 txoctets; | |
345 | u32 octetframes64; | |
346 | u32 octetframes65t127; | |
347 | u32 octetframes128t255; | |
348 | u32 octetframes256t511; | |
349 | u32 octetframes512t1023; | |
350 | u32 octetframes1024tup; | |
351 | u32 netoctets; | |
352 | u32 rxsofoverruns; | |
353 | u32 rxmofoverruns; | |
354 | u32 rxdmaoverruns; | |
355 | }; | |
356 | ||
df828598 | 357 | struct cpsw_slave { |
9750a3ad | 358 | void __iomem *regs; |
df828598 M |
359 | struct cpsw_sliver_regs __iomem *sliver; |
360 | int slave_num; | |
361 | u32 mac_control; | |
362 | struct cpsw_slave_data *data; | |
363 | struct phy_device *phy; | |
d9ba8f9e M |
364 | struct net_device *ndev; |
365 | u32 port_vlan; | |
366 | u32 open_stat; | |
df828598 M |
367 | }; |
368 | ||
9750a3ad RC |
369 | static inline u32 slave_read(struct cpsw_slave *slave, u32 offset) |
370 | { | |
371 | return __raw_readl(slave->regs + offset); | |
372 | } | |
373 | ||
374 | static inline void slave_write(struct cpsw_slave *slave, u32 val, u32 offset) | |
375 | { | |
376 | __raw_writel(val, slave->regs + offset); | |
377 | } | |
378 | ||
df828598 M |
379 | struct cpsw_priv { |
380 | spinlock_t lock; | |
381 | struct platform_device *pdev; | |
382 | struct net_device *ndev; | |
df828598 M |
383 | struct napi_struct napi; |
384 | struct device *dev; | |
385 | struct cpsw_platform_data data; | |
996a5c27 RC |
386 | struct cpsw_ss_regs __iomem *regs; |
387 | struct cpsw_wr_regs __iomem *wr_regs; | |
d9718546 | 388 | u8 __iomem *hw_stats; |
df828598 M |
389 | struct cpsw_host_regs __iomem *host_port_regs; |
390 | u32 msg_enable; | |
e90cfac6 | 391 | u32 version; |
ff5b8ef2 M |
392 | u32 coal_intvl; |
393 | u32 bus_freq_mhz; | |
df828598 M |
394 | int rx_packet_max; |
395 | int host_port; | |
396 | struct clk *clk; | |
397 | u8 mac_addr[ETH_ALEN]; | |
398 | struct cpsw_slave *slaves; | |
399 | struct cpdma_ctlr *dma; | |
400 | struct cpdma_chan *txch, *rxch; | |
401 | struct cpsw_ale *ale; | |
1923d6e4 M |
402 | bool rx_pause; |
403 | bool tx_pause; | |
df828598 M |
404 | /* snapshot of IRQ numbers */ |
405 | u32 irqs_table[4]; | |
406 | u32 num_irqs; | |
a11fbba9 | 407 | bool irq_enabled; |
9232b16d | 408 | struct cpts *cpts; |
d9ba8f9e | 409 | u32 emac_port; |
df828598 M |
410 | }; |
411 | ||
d9718546 M |
412 | struct cpsw_stats { |
413 | char stat_string[ETH_GSTRING_LEN]; | |
414 | int type; | |
415 | int sizeof_stat; | |
416 | int stat_offset; | |
417 | }; | |
418 | ||
419 | enum { | |
420 | CPSW_STATS, | |
421 | CPDMA_RX_STATS, | |
422 | CPDMA_TX_STATS, | |
423 | }; | |
424 | ||
425 | #define CPSW_STAT(m) CPSW_STATS, \ | |
426 | sizeof(((struct cpsw_hw_stats *)0)->m), \ | |
427 | offsetof(struct cpsw_hw_stats, m) | |
428 | #define CPDMA_RX_STAT(m) CPDMA_RX_STATS, \ | |
429 | sizeof(((struct cpdma_chan_stats *)0)->m), \ | |
430 | offsetof(struct cpdma_chan_stats, m) | |
431 | #define CPDMA_TX_STAT(m) CPDMA_TX_STATS, \ | |
432 | sizeof(((struct cpdma_chan_stats *)0)->m), \ | |
433 | offsetof(struct cpdma_chan_stats, m) | |
434 | ||
435 | static const struct cpsw_stats cpsw_gstrings_stats[] = { | |
436 | { "Good Rx Frames", CPSW_STAT(rxgoodframes) }, | |
437 | { "Broadcast Rx Frames", CPSW_STAT(rxbroadcastframes) }, | |
438 | { "Multicast Rx Frames", CPSW_STAT(rxmulticastframes) }, | |
439 | { "Pause Rx Frames", CPSW_STAT(rxpauseframes) }, | |
440 | { "Rx CRC Errors", CPSW_STAT(rxcrcerrors) }, | |
441 | { "Rx Align/Code Errors", CPSW_STAT(rxaligncodeerrors) }, | |
442 | { "Oversize Rx Frames", CPSW_STAT(rxoversizedframes) }, | |
443 | { "Rx Jabbers", CPSW_STAT(rxjabberframes) }, | |
444 | { "Undersize (Short) Rx Frames", CPSW_STAT(rxundersizedframes) }, | |
445 | { "Rx Fragments", CPSW_STAT(rxfragments) }, | |
446 | { "Rx Octets", CPSW_STAT(rxoctets) }, | |
447 | { "Good Tx Frames", CPSW_STAT(txgoodframes) }, | |
448 | { "Broadcast Tx Frames", CPSW_STAT(txbroadcastframes) }, | |
449 | { "Multicast Tx Frames", CPSW_STAT(txmulticastframes) }, | |
450 | { "Pause Tx Frames", CPSW_STAT(txpauseframes) }, | |
451 | { "Deferred Tx Frames", CPSW_STAT(txdeferredframes) }, | |
452 | { "Collisions", CPSW_STAT(txcollisionframes) }, | |
453 | { "Single Collision Tx Frames", CPSW_STAT(txsinglecollframes) }, | |
454 | { "Multiple Collision Tx Frames", CPSW_STAT(txmultcollframes) }, | |
455 | { "Excessive Collisions", CPSW_STAT(txexcessivecollisions) }, | |
456 | { "Late Collisions", CPSW_STAT(txlatecollisions) }, | |
457 | { "Tx Underrun", CPSW_STAT(txunderrun) }, | |
458 | { "Carrier Sense Errors", CPSW_STAT(txcarriersenseerrors) }, | |
459 | { "Tx Octets", CPSW_STAT(txoctets) }, | |
460 | { "Rx + Tx 64 Octet Frames", CPSW_STAT(octetframes64) }, | |
461 | { "Rx + Tx 65-127 Octet Frames", CPSW_STAT(octetframes65t127) }, | |
462 | { "Rx + Tx 128-255 Octet Frames", CPSW_STAT(octetframes128t255) }, | |
463 | { "Rx + Tx 256-511 Octet Frames", CPSW_STAT(octetframes256t511) }, | |
464 | { "Rx + Tx 512-1023 Octet Frames", CPSW_STAT(octetframes512t1023) }, | |
465 | { "Rx + Tx 1024-Up Octet Frames", CPSW_STAT(octetframes1024tup) }, | |
466 | { "Net Octets", CPSW_STAT(netoctets) }, | |
467 | { "Rx Start of Frame Overruns", CPSW_STAT(rxsofoverruns) }, | |
468 | { "Rx Middle of Frame Overruns", CPSW_STAT(rxmofoverruns) }, | |
469 | { "Rx DMA Overruns", CPSW_STAT(rxdmaoverruns) }, | |
470 | { "Rx DMA chan: head_enqueue", CPDMA_RX_STAT(head_enqueue) }, | |
471 | { "Rx DMA chan: tail_enqueue", CPDMA_RX_STAT(tail_enqueue) }, | |
472 | { "Rx DMA chan: pad_enqueue", CPDMA_RX_STAT(pad_enqueue) }, | |
473 | { "Rx DMA chan: misqueued", CPDMA_RX_STAT(misqueued) }, | |
474 | { "Rx DMA chan: desc_alloc_fail", CPDMA_RX_STAT(desc_alloc_fail) }, | |
475 | { "Rx DMA chan: pad_alloc_fail", CPDMA_RX_STAT(pad_alloc_fail) }, | |
476 | { "Rx DMA chan: runt_receive_buf", CPDMA_RX_STAT(runt_receive_buff) }, | |
477 | { "Rx DMA chan: runt_transmit_buf", CPDMA_RX_STAT(runt_transmit_buff) }, | |
478 | { "Rx DMA chan: empty_dequeue", CPDMA_RX_STAT(empty_dequeue) }, | |
479 | { "Rx DMA chan: busy_dequeue", CPDMA_RX_STAT(busy_dequeue) }, | |
480 | { "Rx DMA chan: good_dequeue", CPDMA_RX_STAT(good_dequeue) }, | |
481 | { "Rx DMA chan: requeue", CPDMA_RX_STAT(requeue) }, | |
482 | { "Rx DMA chan: teardown_dequeue", CPDMA_RX_STAT(teardown_dequeue) }, | |
483 | { "Tx DMA chan: head_enqueue", CPDMA_TX_STAT(head_enqueue) }, | |
484 | { "Tx DMA chan: tail_enqueue", CPDMA_TX_STAT(tail_enqueue) }, | |
485 | { "Tx DMA chan: pad_enqueue", CPDMA_TX_STAT(pad_enqueue) }, | |
486 | { "Tx DMA chan: misqueued", CPDMA_TX_STAT(misqueued) }, | |
487 | { "Tx DMA chan: desc_alloc_fail", CPDMA_TX_STAT(desc_alloc_fail) }, | |
488 | { "Tx DMA chan: pad_alloc_fail", CPDMA_TX_STAT(pad_alloc_fail) }, | |
489 | { "Tx DMA chan: runt_receive_buf", CPDMA_TX_STAT(runt_receive_buff) }, | |
490 | { "Tx DMA chan: runt_transmit_buf", CPDMA_TX_STAT(runt_transmit_buff) }, | |
491 | { "Tx DMA chan: empty_dequeue", CPDMA_TX_STAT(empty_dequeue) }, | |
492 | { "Tx DMA chan: busy_dequeue", CPDMA_TX_STAT(busy_dequeue) }, | |
493 | { "Tx DMA chan: good_dequeue", CPDMA_TX_STAT(good_dequeue) }, | |
494 | { "Tx DMA chan: requeue", CPDMA_TX_STAT(requeue) }, | |
495 | { "Tx DMA chan: teardown_dequeue", CPDMA_TX_STAT(teardown_dequeue) }, | |
496 | }; | |
497 | ||
498 | #define CPSW_STATS_LEN ARRAY_SIZE(cpsw_gstrings_stats) | |
499 | ||
df828598 | 500 | #define napi_to_priv(napi) container_of(napi, struct cpsw_priv, napi) |
d9ba8f9e M |
501 | #define for_each_slave(priv, func, arg...) \ |
502 | do { \ | |
6e6ceaed SS |
503 | struct cpsw_slave *slave; \ |
504 | int n; \ | |
d9ba8f9e M |
505 | if (priv->data.dual_emac) \ |
506 | (func)((priv)->slaves + priv->emac_port, ##arg);\ | |
507 | else \ | |
6e6ceaed SS |
508 | for (n = (priv)->data.slaves, \ |
509 | slave = (priv)->slaves; \ | |
510 | n; n--) \ | |
511 | (func)(slave++, ##arg); \ | |
d9ba8f9e M |
512 | } while (0) |
513 | #define cpsw_get_slave_ndev(priv, __slave_no__) \ | |
514 | (priv->slaves[__slave_no__].ndev) | |
515 | #define cpsw_get_slave_priv(priv, __slave_no__) \ | |
516 | ((priv->slaves[__slave_no__].ndev) ? \ | |
517 | netdev_priv(priv->slaves[__slave_no__].ndev) : NULL) \ | |
518 | ||
519 | #define cpsw_dual_emac_src_port_detect(status, priv, ndev, skb) \ | |
520 | do { \ | |
521 | if (!priv->data.dual_emac) \ | |
522 | break; \ | |
523 | if (CPDMA_RX_SOURCE_PORT(status) == 1) { \ | |
524 | ndev = cpsw_get_slave_ndev(priv, 0); \ | |
525 | priv = netdev_priv(ndev); \ | |
526 | skb->dev = ndev; \ | |
527 | } else if (CPDMA_RX_SOURCE_PORT(status) == 2) { \ | |
528 | ndev = cpsw_get_slave_ndev(priv, 1); \ | |
529 | priv = netdev_priv(ndev); \ | |
530 | skb->dev = ndev; \ | |
531 | } \ | |
df828598 | 532 | } while (0) |
d9ba8f9e M |
533 | #define cpsw_add_mcast(priv, addr) \ |
534 | do { \ | |
535 | if (priv->data.dual_emac) { \ | |
536 | struct cpsw_slave *slave = priv->slaves + \ | |
537 | priv->emac_port; \ | |
538 | int slave_port = cpsw_get_slave_port(priv, \ | |
539 | slave->slave_num); \ | |
540 | cpsw_ale_add_mcast(priv->ale, addr, \ | |
541 | 1 << slave_port | 1 << priv->host_port, \ | |
542 | ALE_VLAN, slave->port_vlan, 0); \ | |
543 | } else { \ | |
544 | cpsw_ale_add_mcast(priv->ale, addr, \ | |
545 | ALE_ALL_PORTS << priv->host_port, \ | |
546 | 0, 0, 0); \ | |
547 | } \ | |
548 | } while (0) | |
549 | ||
550 | static inline int cpsw_get_slave_port(struct cpsw_priv *priv, u32 slave_num) | |
551 | { | |
552 | if (priv->host_port == 0) | |
553 | return slave_num + 1; | |
554 | else | |
555 | return slave_num; | |
556 | } | |
df828598 | 557 | |
0cd8f9cc M |
558 | static void cpsw_set_promiscious(struct net_device *ndev, bool enable) |
559 | { | |
560 | struct cpsw_priv *priv = netdev_priv(ndev); | |
561 | struct cpsw_ale *ale = priv->ale; | |
562 | int i; | |
563 | ||
564 | if (priv->data.dual_emac) { | |
565 | bool flag = false; | |
566 | ||
567 | /* Enabling promiscuous mode for one interface will be | |
568 | * common for both the interface as the interface shares | |
569 | * the same hardware resource. | |
570 | */ | |
0d961b3b | 571 | for (i = 0; i < priv->data.slaves; i++) |
0cd8f9cc M |
572 | if (priv->slaves[i].ndev->flags & IFF_PROMISC) |
573 | flag = true; | |
574 | ||
575 | if (!enable && flag) { | |
576 | enable = true; | |
577 | dev_err(&ndev->dev, "promiscuity not disabled as the other interface is still in promiscuity mode\n"); | |
578 | } | |
579 | ||
580 | if (enable) { | |
581 | /* Enable Bypass */ | |
582 | cpsw_ale_control_set(ale, 0, ALE_BYPASS, 1); | |
583 | ||
584 | dev_dbg(&ndev->dev, "promiscuity enabled\n"); | |
585 | } else { | |
586 | /* Disable Bypass */ | |
587 | cpsw_ale_control_set(ale, 0, ALE_BYPASS, 0); | |
588 | dev_dbg(&ndev->dev, "promiscuity disabled\n"); | |
589 | } | |
590 | } else { | |
591 | if (enable) { | |
592 | unsigned long timeout = jiffies + HZ; | |
593 | ||
6f979eb3 LS |
594 | /* Disable Learn for all ports (host is port 0 and slaves are port 1 and up */ |
595 | for (i = 0; i <= priv->data.slaves; i++) { | |
0cd8f9cc M |
596 | cpsw_ale_control_set(ale, i, |
597 | ALE_PORT_NOLEARN, 1); | |
598 | cpsw_ale_control_set(ale, i, | |
599 | ALE_PORT_NO_SA_UPDATE, 1); | |
600 | } | |
601 | ||
602 | /* Clear All Untouched entries */ | |
603 | cpsw_ale_control_set(ale, 0, ALE_AGEOUT, 1); | |
604 | do { | |
605 | cpu_relax(); | |
606 | if (cpsw_ale_control_get(ale, 0, ALE_AGEOUT)) | |
607 | break; | |
608 | } while (time_after(timeout, jiffies)); | |
609 | cpsw_ale_control_set(ale, 0, ALE_AGEOUT, 1); | |
610 | ||
611 | /* Clear all mcast from ALE */ | |
612 | cpsw_ale_flush_multicast(ale, ALE_ALL_PORTS << | |
613 | priv->host_port); | |
614 | ||
615 | /* Flood All Unicast Packets to Host port */ | |
616 | cpsw_ale_control_set(ale, 0, ALE_P0_UNI_FLOOD, 1); | |
617 | dev_dbg(&ndev->dev, "promiscuity enabled\n"); | |
618 | } else { | |
6f979eb3 | 619 | /* Don't Flood All Unicast Packets to Host port */ |
0cd8f9cc M |
620 | cpsw_ale_control_set(ale, 0, ALE_P0_UNI_FLOOD, 0); |
621 | ||
6f979eb3 LS |
622 | /* Enable Learn for all ports (host is port 0 and slaves are port 1 and up */ |
623 | for (i = 0; i <= priv->data.slaves; i++) { | |
0cd8f9cc M |
624 | cpsw_ale_control_set(ale, i, |
625 | ALE_PORT_NOLEARN, 0); | |
626 | cpsw_ale_control_set(ale, i, | |
627 | ALE_PORT_NO_SA_UPDATE, 0); | |
628 | } | |
629 | dev_dbg(&ndev->dev, "promiscuity disabled\n"); | |
630 | } | |
631 | } | |
632 | } | |
633 | ||
5c50a856 M |
634 | static void cpsw_ndo_set_rx_mode(struct net_device *ndev) |
635 | { | |
636 | struct cpsw_priv *priv = netdev_priv(ndev); | |
637 | ||
638 | if (ndev->flags & IFF_PROMISC) { | |
639 | /* Enable promiscuous mode */ | |
0cd8f9cc | 640 | cpsw_set_promiscious(ndev, true); |
1e5c4bc4 | 641 | cpsw_ale_set_allmulti(priv->ale, IFF_ALLMULTI); |
5c50a856 | 642 | return; |
0cd8f9cc M |
643 | } else { |
644 | /* Disable promiscuous mode */ | |
645 | cpsw_set_promiscious(ndev, false); | |
5c50a856 M |
646 | } |
647 | ||
1e5c4bc4 LS |
648 | /* Restore allmulti on vlans if necessary */ |
649 | cpsw_ale_set_allmulti(priv->ale, priv->ndev->flags & IFF_ALLMULTI); | |
650 | ||
5c50a856 M |
651 | /* Clear all mcast from ALE */ |
652 | cpsw_ale_flush_multicast(priv->ale, ALE_ALL_PORTS << priv->host_port); | |
653 | ||
654 | if (!netdev_mc_empty(ndev)) { | |
655 | struct netdev_hw_addr *ha; | |
656 | ||
657 | /* program multicast address list into ALE register */ | |
658 | netdev_for_each_mc_addr(ha, ndev) { | |
d9ba8f9e | 659 | cpsw_add_mcast(priv, (u8 *)ha->addr); |
5c50a856 M |
660 | } |
661 | } | |
662 | } | |
663 | ||
df828598 M |
664 | static void cpsw_intr_enable(struct cpsw_priv *priv) |
665 | { | |
996a5c27 RC |
666 | __raw_writel(0xFF, &priv->wr_regs->tx_en); |
667 | __raw_writel(0xFF, &priv->wr_regs->rx_en); | |
df828598 M |
668 | |
669 | cpdma_ctlr_int_ctrl(priv->dma, true); | |
670 | return; | |
671 | } | |
672 | ||
673 | static void cpsw_intr_disable(struct cpsw_priv *priv) | |
674 | { | |
996a5c27 RC |
675 | __raw_writel(0, &priv->wr_regs->tx_en); |
676 | __raw_writel(0, &priv->wr_regs->rx_en); | |
df828598 M |
677 | |
678 | cpdma_ctlr_int_ctrl(priv->dma, false); | |
679 | return; | |
680 | } | |
681 | ||
1a3b5056 | 682 | static void cpsw_tx_handler(void *token, int len, int status) |
df828598 M |
683 | { |
684 | struct sk_buff *skb = token; | |
685 | struct net_device *ndev = skb->dev; | |
686 | struct cpsw_priv *priv = netdev_priv(ndev); | |
687 | ||
fae50823 M |
688 | /* Check whether the queue is stopped due to stalled tx dma, if the |
689 | * queue is stopped then start the queue as we have free desc for tx | |
690 | */ | |
df828598 | 691 | if (unlikely(netif_queue_stopped(ndev))) |
b56d6b3f | 692 | netif_wake_queue(ndev); |
9232b16d | 693 | cpts_tx_timestamp(priv->cpts, skb); |
8dc43ddc TK |
694 | ndev->stats.tx_packets++; |
695 | ndev->stats.tx_bytes += len; | |
df828598 M |
696 | dev_kfree_skb_any(skb); |
697 | } | |
698 | ||
1a3b5056 | 699 | static void cpsw_rx_handler(void *token, int len, int status) |
df828598 M |
700 | { |
701 | struct sk_buff *skb = token; | |
b4727e69 | 702 | struct sk_buff *new_skb; |
df828598 M |
703 | struct net_device *ndev = skb->dev; |
704 | struct cpsw_priv *priv = netdev_priv(ndev); | |
705 | int ret = 0; | |
706 | ||
d9ba8f9e M |
707 | cpsw_dual_emac_src_port_detect(status, priv, ndev, skb); |
708 | ||
16e5c57d | 709 | if (unlikely(status < 0) || unlikely(!netif_running(ndev))) { |
a0e2c822 M |
710 | bool ndev_status = false; |
711 | struct cpsw_slave *slave = priv->slaves; | |
712 | int n; | |
713 | ||
714 | if (priv->data.dual_emac) { | |
715 | /* In dual emac mode check for all interfaces */ | |
716 | for (n = priv->data.slaves; n; n--, slave++) | |
717 | if (netif_running(slave->ndev)) | |
718 | ndev_status = true; | |
719 | } | |
720 | ||
721 | if (ndev_status && (status >= 0)) { | |
722 | /* The packet received is for the interface which | |
723 | * is already down and the other interface is up | |
724 | * and running, intead of freeing which results | |
725 | * in reducing of the number of rx descriptor in | |
726 | * DMA engine, requeue skb back to cpdma. | |
727 | */ | |
728 | new_skb = skb; | |
729 | goto requeue; | |
730 | } | |
731 | ||
b4727e69 | 732 | /* the interface is going down, skbs are purged */ |
df828598 M |
733 | dev_kfree_skb_any(skb); |
734 | return; | |
735 | } | |
b4727e69 SS |
736 | |
737 | new_skb = netdev_alloc_skb_ip_align(ndev, priv->rx_packet_max); | |
738 | if (new_skb) { | |
df828598 | 739 | skb_put(skb, len); |
9232b16d | 740 | cpts_rx_timestamp(priv->cpts, skb); |
df828598 M |
741 | skb->protocol = eth_type_trans(skb, ndev); |
742 | netif_receive_skb(skb); | |
8dc43ddc TK |
743 | ndev->stats.rx_bytes += len; |
744 | ndev->stats.rx_packets++; | |
b4727e69 | 745 | } else { |
8dc43ddc | 746 | ndev->stats.rx_dropped++; |
b4727e69 | 747 | new_skb = skb; |
df828598 M |
748 | } |
749 | ||
a0e2c822 | 750 | requeue: |
b4727e69 SS |
751 | ret = cpdma_chan_submit(priv->rxch, new_skb, new_skb->data, |
752 | skb_tailroom(new_skb), 0); | |
753 | if (WARN_ON(ret < 0)) | |
754 | dev_kfree_skb_any(new_skb); | |
df828598 M |
755 | } |
756 | ||
757 | static irqreturn_t cpsw_interrupt(int irq, void *dev_id) | |
758 | { | |
759 | struct cpsw_priv *priv = dev_id; | |
fd51cf19 SS |
760 | |
761 | cpsw_intr_disable(priv); | |
a11fbba9 SS |
762 | if (priv->irq_enabled == true) { |
763 | cpsw_disable_irq(priv); | |
764 | priv->irq_enabled = false; | |
765 | } | |
fd51cf19 SS |
766 | |
767 | if (netif_running(priv->ndev)) { | |
df828598 | 768 | napi_schedule(&priv->napi); |
fd51cf19 SS |
769 | return IRQ_HANDLED; |
770 | } | |
771 | ||
772 | priv = cpsw_get_slave_priv(priv, 1); | |
773 | if (!priv) | |
774 | return IRQ_NONE; | |
775 | ||
776 | if (netif_running(priv->ndev)) { | |
777 | napi_schedule(&priv->napi); | |
778 | return IRQ_HANDLED; | |
df828598 | 779 | } |
fd51cf19 | 780 | return IRQ_NONE; |
df828598 M |
781 | } |
782 | ||
df828598 M |
783 | static int cpsw_poll(struct napi_struct *napi, int budget) |
784 | { | |
785 | struct cpsw_priv *priv = napi_to_priv(napi); | |
786 | int num_tx, num_rx; | |
787 | ||
788 | num_tx = cpdma_chan_process(priv->txch, 128); | |
510a1e72 M |
789 | if (num_tx) |
790 | cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX); | |
df828598 | 791 | |
510a1e72 | 792 | num_rx = cpdma_chan_process(priv->rxch, budget); |
df828598 | 793 | if (num_rx < budget) { |
a11fbba9 SS |
794 | struct cpsw_priv *prim_cpsw; |
795 | ||
df828598 M |
796 | napi_complete(napi); |
797 | cpsw_intr_enable(priv); | |
510a1e72 | 798 | cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX); |
a11fbba9 SS |
799 | prim_cpsw = cpsw_get_slave_priv(priv, 0); |
800 | if (prim_cpsw->irq_enabled == false) { | |
a11fbba9 | 801 | prim_cpsw->irq_enabled = true; |
af5c6df7 | 802 | cpsw_enable_irq(priv); |
a11fbba9 | 803 | } |
df828598 M |
804 | } |
805 | ||
510a1e72 M |
806 | if (num_rx || num_tx) |
807 | cpsw_dbg(priv, intr, "poll %d rx, %d tx pkts\n", | |
808 | num_rx, num_tx); | |
809 | ||
df828598 M |
810 | return num_rx; |
811 | } | |
812 | ||
813 | static inline void soft_reset(const char *module, void __iomem *reg) | |
814 | { | |
815 | unsigned long timeout = jiffies + HZ; | |
816 | ||
817 | __raw_writel(1, reg); | |
818 | do { | |
819 | cpu_relax(); | |
820 | } while ((__raw_readl(reg) & 1) && time_after(timeout, jiffies)); | |
821 | ||
822 | WARN(__raw_readl(reg) & 1, "failed to soft-reset %s\n", module); | |
823 | } | |
824 | ||
825 | #define mac_hi(mac) (((mac)[0] << 0) | ((mac)[1] << 8) | \ | |
826 | ((mac)[2] << 16) | ((mac)[3] << 24)) | |
827 | #define mac_lo(mac) (((mac)[4] << 0) | ((mac)[5] << 8)) | |
828 | ||
829 | static void cpsw_set_slave_mac(struct cpsw_slave *slave, | |
830 | struct cpsw_priv *priv) | |
831 | { | |
9750a3ad RC |
832 | slave_write(slave, mac_hi(priv->mac_addr), SA_HI); |
833 | slave_write(slave, mac_lo(priv->mac_addr), SA_LO); | |
df828598 M |
834 | } |
835 | ||
836 | static void _cpsw_adjust_link(struct cpsw_slave *slave, | |
837 | struct cpsw_priv *priv, bool *link) | |
838 | { | |
839 | struct phy_device *phy = slave->phy; | |
840 | u32 mac_control = 0; | |
841 | u32 slave_port; | |
842 | ||
843 | if (!phy) | |
844 | return; | |
845 | ||
846 | slave_port = cpsw_get_slave_port(priv, slave->slave_num); | |
847 | ||
848 | if (phy->link) { | |
849 | mac_control = priv->data.mac_control; | |
850 | ||
851 | /* enable forwarding */ | |
852 | cpsw_ale_control_set(priv->ale, slave_port, | |
853 | ALE_PORT_STATE, ALE_PORT_STATE_FORWARD); | |
854 | ||
855 | if (phy->speed == 1000) | |
856 | mac_control |= BIT(7); /* GIGABITEN */ | |
857 | if (phy->duplex) | |
858 | mac_control |= BIT(0); /* FULLDUPLEXEN */ | |
342b7b74 DM |
859 | |
860 | /* set speed_in input in case RMII mode is used in 100Mbps */ | |
861 | if (phy->speed == 100) | |
862 | mac_control |= BIT(15); | |
a81d8762 M |
863 | else if (phy->speed == 10) |
864 | mac_control |= BIT(18); /* In Band mode */ | |
342b7b74 | 865 | |
1923d6e4 M |
866 | if (priv->rx_pause) |
867 | mac_control |= BIT(3); | |
868 | ||
869 | if (priv->tx_pause) | |
870 | mac_control |= BIT(4); | |
871 | ||
df828598 M |
872 | *link = true; |
873 | } else { | |
874 | mac_control = 0; | |
875 | /* disable forwarding */ | |
876 | cpsw_ale_control_set(priv->ale, slave_port, | |
877 | ALE_PORT_STATE, ALE_PORT_STATE_DISABLE); | |
878 | } | |
879 | ||
880 | if (mac_control != slave->mac_control) { | |
881 | phy_print_status(phy); | |
882 | __raw_writel(mac_control, &slave->sliver->mac_control); | |
883 | } | |
884 | ||
885 | slave->mac_control = mac_control; | |
886 | } | |
887 | ||
888 | static void cpsw_adjust_link(struct net_device *ndev) | |
889 | { | |
890 | struct cpsw_priv *priv = netdev_priv(ndev); | |
891 | bool link = false; | |
892 | ||
893 | for_each_slave(priv, _cpsw_adjust_link, priv, &link); | |
894 | ||
895 | if (link) { | |
896 | netif_carrier_on(ndev); | |
897 | if (netif_running(ndev)) | |
898 | netif_wake_queue(ndev); | |
899 | } else { | |
900 | netif_carrier_off(ndev); | |
901 | netif_stop_queue(ndev); | |
902 | } | |
903 | } | |
904 | ||
ff5b8ef2 M |
905 | static int cpsw_get_coalesce(struct net_device *ndev, |
906 | struct ethtool_coalesce *coal) | |
907 | { | |
908 | struct cpsw_priv *priv = netdev_priv(ndev); | |
909 | ||
910 | coal->rx_coalesce_usecs = priv->coal_intvl; | |
911 | return 0; | |
912 | } | |
913 | ||
914 | static int cpsw_set_coalesce(struct net_device *ndev, | |
915 | struct ethtool_coalesce *coal) | |
916 | { | |
917 | struct cpsw_priv *priv = netdev_priv(ndev); | |
918 | u32 int_ctrl; | |
919 | u32 num_interrupts = 0; | |
920 | u32 prescale = 0; | |
921 | u32 addnl_dvdr = 1; | |
922 | u32 coal_intvl = 0; | |
923 | ||
ff5b8ef2 M |
924 | coal_intvl = coal->rx_coalesce_usecs; |
925 | ||
926 | int_ctrl = readl(&priv->wr_regs->int_control); | |
927 | prescale = priv->bus_freq_mhz * 4; | |
928 | ||
a84bc2a9 M |
929 | if (!coal->rx_coalesce_usecs) { |
930 | int_ctrl &= ~(CPSW_INTPRESCALE_MASK | CPSW_INTPACEEN); | |
931 | goto update_return; | |
932 | } | |
933 | ||
ff5b8ef2 M |
934 | if (coal_intvl < CPSW_CMINTMIN_INTVL) |
935 | coal_intvl = CPSW_CMINTMIN_INTVL; | |
936 | ||
937 | if (coal_intvl > CPSW_CMINTMAX_INTVL) { | |
938 | /* Interrupt pacer works with 4us Pulse, we can | |
939 | * throttle further by dilating the 4us pulse. | |
940 | */ | |
941 | addnl_dvdr = CPSW_INTPRESCALE_MASK / prescale; | |
942 | ||
943 | if (addnl_dvdr > 1) { | |
944 | prescale *= addnl_dvdr; | |
945 | if (coal_intvl > (CPSW_CMINTMAX_INTVL * addnl_dvdr)) | |
946 | coal_intvl = (CPSW_CMINTMAX_INTVL | |
947 | * addnl_dvdr); | |
948 | } else { | |
949 | addnl_dvdr = 1; | |
950 | coal_intvl = CPSW_CMINTMAX_INTVL; | |
951 | } | |
952 | } | |
953 | ||
954 | num_interrupts = (1000 * addnl_dvdr) / coal_intvl; | |
955 | writel(num_interrupts, &priv->wr_regs->rx_imax); | |
956 | writel(num_interrupts, &priv->wr_regs->tx_imax); | |
957 | ||
958 | int_ctrl |= CPSW_INTPACEEN; | |
959 | int_ctrl &= (~CPSW_INTPRESCALE_MASK); | |
960 | int_ctrl |= (prescale & CPSW_INTPRESCALE_MASK); | |
a84bc2a9 M |
961 | |
962 | update_return: | |
ff5b8ef2 M |
963 | writel(int_ctrl, &priv->wr_regs->int_control); |
964 | ||
965 | cpsw_notice(priv, timer, "Set coalesce to %d usecs.\n", coal_intvl); | |
966 | if (priv->data.dual_emac) { | |
967 | int i; | |
968 | ||
969 | for (i = 0; i < priv->data.slaves; i++) { | |
970 | priv = netdev_priv(priv->slaves[i].ndev); | |
971 | priv->coal_intvl = coal_intvl; | |
972 | } | |
973 | } else { | |
974 | priv->coal_intvl = coal_intvl; | |
975 | } | |
976 | ||
977 | return 0; | |
978 | } | |
979 | ||
d9718546 M |
980 | static int cpsw_get_sset_count(struct net_device *ndev, int sset) |
981 | { | |
982 | switch (sset) { | |
983 | case ETH_SS_STATS: | |
984 | return CPSW_STATS_LEN; | |
985 | default: | |
986 | return -EOPNOTSUPP; | |
987 | } | |
988 | } | |
989 | ||
990 | static void cpsw_get_strings(struct net_device *ndev, u32 stringset, u8 *data) | |
991 | { | |
992 | u8 *p = data; | |
993 | int i; | |
994 | ||
995 | switch (stringset) { | |
996 | case ETH_SS_STATS: | |
997 | for (i = 0; i < CPSW_STATS_LEN; i++) { | |
998 | memcpy(p, cpsw_gstrings_stats[i].stat_string, | |
999 | ETH_GSTRING_LEN); | |
1000 | p += ETH_GSTRING_LEN; | |
1001 | } | |
1002 | break; | |
1003 | } | |
1004 | } | |
1005 | ||
1006 | static void cpsw_get_ethtool_stats(struct net_device *ndev, | |
1007 | struct ethtool_stats *stats, u64 *data) | |
1008 | { | |
1009 | struct cpsw_priv *priv = netdev_priv(ndev); | |
1010 | struct cpdma_chan_stats rx_stats; | |
1011 | struct cpdma_chan_stats tx_stats; | |
1012 | u32 val; | |
1013 | u8 *p; | |
1014 | int i; | |
1015 | ||
1016 | /* Collect Davinci CPDMA stats for Rx and Tx Channel */ | |
1017 | cpdma_chan_get_stats(priv->rxch, &rx_stats); | |
1018 | cpdma_chan_get_stats(priv->txch, &tx_stats); | |
1019 | ||
1020 | for (i = 0; i < CPSW_STATS_LEN; i++) { | |
1021 | switch (cpsw_gstrings_stats[i].type) { | |
1022 | case CPSW_STATS: | |
1023 | val = readl(priv->hw_stats + | |
1024 | cpsw_gstrings_stats[i].stat_offset); | |
1025 | data[i] = val; | |
1026 | break; | |
1027 | ||
1028 | case CPDMA_RX_STATS: | |
1029 | p = (u8 *)&rx_stats + | |
1030 | cpsw_gstrings_stats[i].stat_offset; | |
1031 | data[i] = *(u32 *)p; | |
1032 | break; | |
1033 | ||
1034 | case CPDMA_TX_STATS: | |
1035 | p = (u8 *)&tx_stats + | |
1036 | cpsw_gstrings_stats[i].stat_offset; | |
1037 | data[i] = *(u32 *)p; | |
1038 | break; | |
1039 | } | |
1040 | } | |
1041 | } | |
1042 | ||
d9ba8f9e M |
1043 | static int cpsw_common_res_usage_state(struct cpsw_priv *priv) |
1044 | { | |
1045 | u32 i; | |
1046 | u32 usage_count = 0; | |
1047 | ||
1048 | if (!priv->data.dual_emac) | |
1049 | return 0; | |
1050 | ||
1051 | for (i = 0; i < priv->data.slaves; i++) | |
1052 | if (priv->slaves[i].open_stat) | |
1053 | usage_count++; | |
1054 | ||
1055 | return usage_count; | |
1056 | } | |
1057 | ||
1058 | static inline int cpsw_tx_packet_submit(struct net_device *ndev, | |
1059 | struct cpsw_priv *priv, struct sk_buff *skb) | |
1060 | { | |
1061 | if (!priv->data.dual_emac) | |
1062 | return cpdma_chan_submit(priv->txch, skb, skb->data, | |
aef614e1 | 1063 | skb->len, 0); |
d9ba8f9e M |
1064 | |
1065 | if (ndev == cpsw_get_slave_ndev(priv, 0)) | |
1066 | return cpdma_chan_submit(priv->txch, skb, skb->data, | |
aef614e1 | 1067 | skb->len, 1); |
d9ba8f9e M |
1068 | else |
1069 | return cpdma_chan_submit(priv->txch, skb, skb->data, | |
aef614e1 | 1070 | skb->len, 2); |
d9ba8f9e M |
1071 | } |
1072 | ||
1073 | static inline void cpsw_add_dual_emac_def_ale_entries( | |
1074 | struct cpsw_priv *priv, struct cpsw_slave *slave, | |
1075 | u32 slave_port) | |
1076 | { | |
1077 | u32 port_mask = 1 << slave_port | 1 << priv->host_port; | |
1078 | ||
1079 | if (priv->version == CPSW_VERSION_1) | |
1080 | slave_write(slave, slave->port_vlan, CPSW1_PORT_VLAN); | |
1081 | else | |
1082 | slave_write(slave, slave->port_vlan, CPSW2_PORT_VLAN); | |
1083 | cpsw_ale_add_vlan(priv->ale, slave->port_vlan, port_mask, | |
1084 | port_mask, port_mask, 0); | |
1085 | cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast, | |
1086 | port_mask, ALE_VLAN, slave->port_vlan, 0); | |
1087 | cpsw_ale_add_ucast(priv->ale, priv->mac_addr, | |
1088 | priv->host_port, ALE_VLAN, slave->port_vlan); | |
1089 | } | |
1090 | ||
1e7a2e21 | 1091 | static void soft_reset_slave(struct cpsw_slave *slave) |
df828598 M |
1092 | { |
1093 | char name[32]; | |
df828598 | 1094 | |
1e7a2e21 | 1095 | snprintf(name, sizeof(name), "slave-%d", slave->slave_num); |
df828598 | 1096 | soft_reset(name, &slave->sliver->soft_reset); |
1e7a2e21 DM |
1097 | } |
1098 | ||
1099 | static void cpsw_slave_open(struct cpsw_slave *slave, struct cpsw_priv *priv) | |
1100 | { | |
1101 | u32 slave_port; | |
1102 | ||
1103 | soft_reset_slave(slave); | |
df828598 M |
1104 | |
1105 | /* setup priority mapping */ | |
1106 | __raw_writel(RX_PRIORITY_MAPPING, &slave->sliver->rx_pri_map); | |
9750a3ad RC |
1107 | |
1108 | switch (priv->version) { | |
1109 | case CPSW_VERSION_1: | |
1110 | slave_write(slave, TX_PRIORITY_MAPPING, CPSW1_TX_PRI_MAP); | |
1111 | break; | |
1112 | case CPSW_VERSION_2: | |
c193f365 | 1113 | case CPSW_VERSION_3: |
926489be | 1114 | case CPSW_VERSION_4: |
9750a3ad RC |
1115 | slave_write(slave, TX_PRIORITY_MAPPING, CPSW2_TX_PRI_MAP); |
1116 | break; | |
1117 | } | |
df828598 M |
1118 | |
1119 | /* setup max packet size, and mac address */ | |
1120 | __raw_writel(priv->rx_packet_max, &slave->sliver->rx_maxlen); | |
1121 | cpsw_set_slave_mac(slave, priv); | |
1122 | ||
1123 | slave->mac_control = 0; /* no link yet */ | |
1124 | ||
1125 | slave_port = cpsw_get_slave_port(priv, slave->slave_num); | |
1126 | ||
d9ba8f9e M |
1127 | if (priv->data.dual_emac) |
1128 | cpsw_add_dual_emac_def_ale_entries(priv, slave, slave_port); | |
1129 | else | |
1130 | cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast, | |
1131 | 1 << slave_port, 0, 0, ALE_MCAST_FWD_2); | |
df828598 M |
1132 | |
1133 | slave->phy = phy_connect(priv->ndev, slave->data->phy_id, | |
f9a8f83b | 1134 | &cpsw_adjust_link, slave->data->phy_if); |
df828598 M |
1135 | if (IS_ERR(slave->phy)) { |
1136 | dev_err(priv->dev, "phy %s not found on slave %d\n", | |
1137 | slave->data->phy_id, slave->slave_num); | |
1138 | slave->phy = NULL; | |
1139 | } else { | |
1140 | dev_info(priv->dev, "phy found : id is : 0x%x\n", | |
1141 | slave->phy->phy_id); | |
1142 | phy_start(slave->phy); | |
388367a5 M |
1143 | |
1144 | /* Configure GMII_SEL register */ | |
1145 | cpsw_phy_sel(&priv->pdev->dev, slave->phy->interface, | |
1146 | slave->slave_num); | |
df828598 M |
1147 | } |
1148 | } | |
1149 | ||
3b72c2fe M |
1150 | static inline void cpsw_add_default_vlan(struct cpsw_priv *priv) |
1151 | { | |
1152 | const int vlan = priv->data.default_vlan; | |
1153 | const int port = priv->host_port; | |
1154 | u32 reg; | |
1155 | int i; | |
1e5c4bc4 | 1156 | int unreg_mcast_mask; |
3b72c2fe M |
1157 | |
1158 | reg = (priv->version == CPSW_VERSION_1) ? CPSW1_PORT_VLAN : | |
1159 | CPSW2_PORT_VLAN; | |
1160 | ||
1161 | writel(vlan, &priv->host_port_regs->port_vlan); | |
1162 | ||
0237c110 | 1163 | for (i = 0; i < priv->data.slaves; i++) |
3b72c2fe M |
1164 | slave_write(priv->slaves + i, vlan, reg); |
1165 | ||
1e5c4bc4 LS |
1166 | if (priv->ndev->flags & IFF_ALLMULTI) |
1167 | unreg_mcast_mask = ALE_ALL_PORTS; | |
1168 | else | |
1169 | unreg_mcast_mask = ALE_PORT_1 | ALE_PORT_2; | |
1170 | ||
3b72c2fe M |
1171 | cpsw_ale_add_vlan(priv->ale, vlan, ALE_ALL_PORTS << port, |
1172 | ALE_ALL_PORTS << port, ALE_ALL_PORTS << port, | |
1e5c4bc4 | 1173 | unreg_mcast_mask << port); |
3b72c2fe M |
1174 | } |
1175 | ||
df828598 M |
1176 | static void cpsw_init_host_port(struct cpsw_priv *priv) |
1177 | { | |
3b72c2fe | 1178 | u32 control_reg; |
d9ba8f9e | 1179 | u32 fifo_mode; |
3b72c2fe | 1180 | |
df828598 M |
1181 | /* soft reset the controller and initialize ale */ |
1182 | soft_reset("cpsw", &priv->regs->soft_reset); | |
1183 | cpsw_ale_start(priv->ale); | |
1184 | ||
1185 | /* switch to vlan unaware mode */ | |
3b72c2fe M |
1186 | cpsw_ale_control_set(priv->ale, priv->host_port, ALE_VLAN_AWARE, |
1187 | CPSW_ALE_VLAN_AWARE); | |
1188 | control_reg = readl(&priv->regs->control); | |
1189 | control_reg |= CPSW_VLAN_AWARE; | |
1190 | writel(control_reg, &priv->regs->control); | |
d9ba8f9e M |
1191 | fifo_mode = (priv->data.dual_emac) ? CPSW_FIFO_DUAL_MAC_MODE : |
1192 | CPSW_FIFO_NORMAL_MODE; | |
1193 | writel(fifo_mode, &priv->host_port_regs->tx_in_ctl); | |
df828598 M |
1194 | |
1195 | /* setup host port priority mapping */ | |
1196 | __raw_writel(CPDMA_TX_PRIORITY_MAP, | |
1197 | &priv->host_port_regs->cpdma_tx_pri_map); | |
1198 | __raw_writel(0, &priv->host_port_regs->cpdma_rx_chan_map); | |
1199 | ||
1200 | cpsw_ale_control_set(priv->ale, priv->host_port, | |
1201 | ALE_PORT_STATE, ALE_PORT_STATE_FORWARD); | |
1202 | ||
d9ba8f9e M |
1203 | if (!priv->data.dual_emac) { |
1204 | cpsw_ale_add_ucast(priv->ale, priv->mac_addr, priv->host_port, | |
1205 | 0, 0); | |
1206 | cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast, | |
1207 | 1 << priv->host_port, 0, 0, ALE_MCAST_FWD_2); | |
1208 | } | |
df828598 M |
1209 | } |
1210 | ||
aacebbf8 SS |
1211 | static void cpsw_slave_stop(struct cpsw_slave *slave, struct cpsw_priv *priv) |
1212 | { | |
3995d265 SP |
1213 | u32 slave_port; |
1214 | ||
1215 | slave_port = cpsw_get_slave_port(priv, slave->slave_num); | |
1216 | ||
aacebbf8 SS |
1217 | if (!slave->phy) |
1218 | return; | |
1219 | phy_stop(slave->phy); | |
1220 | phy_disconnect(slave->phy); | |
1221 | slave->phy = NULL; | |
3995d265 SP |
1222 | cpsw_ale_control_set(priv->ale, slave_port, |
1223 | ALE_PORT_STATE, ALE_PORT_STATE_DISABLE); | |
aacebbf8 SS |
1224 | } |
1225 | ||
df828598 M |
1226 | static int cpsw_ndo_open(struct net_device *ndev) |
1227 | { | |
1228 | struct cpsw_priv *priv = netdev_priv(ndev); | |
a11fbba9 | 1229 | struct cpsw_priv *prim_cpsw; |
df828598 M |
1230 | int i, ret; |
1231 | u32 reg; | |
1232 | ||
d9ba8f9e M |
1233 | if (!cpsw_common_res_usage_state(priv)) |
1234 | cpsw_intr_disable(priv); | |
df828598 M |
1235 | netif_carrier_off(ndev); |
1236 | ||
f150bd7f | 1237 | pm_runtime_get_sync(&priv->pdev->dev); |
df828598 | 1238 | |
549985ee | 1239 | reg = priv->version; |
df828598 M |
1240 | |
1241 | dev_info(priv->dev, "initializing cpsw version %d.%d (%d)\n", | |
1242 | CPSW_MAJOR_VERSION(reg), CPSW_MINOR_VERSION(reg), | |
1243 | CPSW_RTL_VERSION(reg)); | |
1244 | ||
1245 | /* initialize host and slave ports */ | |
d9ba8f9e M |
1246 | if (!cpsw_common_res_usage_state(priv)) |
1247 | cpsw_init_host_port(priv); | |
df828598 M |
1248 | for_each_slave(priv, cpsw_slave_open, priv); |
1249 | ||
3b72c2fe | 1250 | /* Add default VLAN */ |
e6afea0b M |
1251 | if (!priv->data.dual_emac) |
1252 | cpsw_add_default_vlan(priv); | |
1253 | else | |
1254 | cpsw_ale_add_vlan(priv->ale, priv->data.default_vlan, | |
1255 | ALE_ALL_PORTS << priv->host_port, | |
1256 | ALE_ALL_PORTS << priv->host_port, 0, 0); | |
3b72c2fe | 1257 | |
d9ba8f9e M |
1258 | if (!cpsw_common_res_usage_state(priv)) { |
1259 | /* setup tx dma to fixed prio and zero offset */ | |
1260 | cpdma_control_set(priv->dma, CPDMA_TX_PRIO_FIXED, 1); | |
1261 | cpdma_control_set(priv->dma, CPDMA_RX_BUFFER_OFFSET, 0); | |
df828598 | 1262 | |
d9ba8f9e M |
1263 | /* disable priority elevation */ |
1264 | __raw_writel(0, &priv->regs->ptype); | |
df828598 | 1265 | |
d9ba8f9e M |
1266 | /* enable statistics collection only on all ports */ |
1267 | __raw_writel(0x7, &priv->regs->stat_port_en); | |
df828598 | 1268 | |
1923d6e4 M |
1269 | /* Enable internal fifo flow control */ |
1270 | writel(0x7, &priv->regs->flow_control); | |
1271 | ||
d9ba8f9e M |
1272 | if (WARN_ON(!priv->data.rx_descs)) |
1273 | priv->data.rx_descs = 128; | |
df828598 | 1274 | |
d9ba8f9e M |
1275 | for (i = 0; i < priv->data.rx_descs; i++) { |
1276 | struct sk_buff *skb; | |
df828598 | 1277 | |
d9ba8f9e | 1278 | ret = -ENOMEM; |
aacebbf8 SS |
1279 | skb = __netdev_alloc_skb_ip_align(priv->ndev, |
1280 | priv->rx_packet_max, GFP_KERNEL); | |
d9ba8f9e | 1281 | if (!skb) |
aacebbf8 | 1282 | goto err_cleanup; |
d9ba8f9e | 1283 | ret = cpdma_chan_submit(priv->rxch, skb, skb->data, |
aef614e1 | 1284 | skb_tailroom(skb), 0); |
aacebbf8 SS |
1285 | if (ret < 0) { |
1286 | kfree_skb(skb); | |
1287 | goto err_cleanup; | |
1288 | } | |
d9ba8f9e M |
1289 | } |
1290 | /* continue even if we didn't manage to submit all | |
1291 | * receive descs | |
1292 | */ | |
1293 | cpsw_info(priv, ifup, "submitted %d rx descriptors\n", i); | |
f280e89a M |
1294 | |
1295 | if (cpts_register(&priv->pdev->dev, priv->cpts, | |
1296 | priv->data.cpts_clock_mult, | |
1297 | priv->data.cpts_clock_shift)) | |
1298 | dev_err(priv->dev, "error registering cpts device\n"); | |
1299 | ||
df828598 | 1300 | } |
df828598 | 1301 | |
ff5b8ef2 M |
1302 | /* Enable Interrupt pacing if configured */ |
1303 | if (priv->coal_intvl != 0) { | |
1304 | struct ethtool_coalesce coal; | |
1305 | ||
1306 | coal.rx_coalesce_usecs = (priv->coal_intvl << 4); | |
1307 | cpsw_set_coalesce(ndev, &coal); | |
1308 | } | |
1309 | ||
f63a975e M |
1310 | napi_enable(&priv->napi); |
1311 | cpdma_ctlr_start(priv->dma); | |
1312 | cpsw_intr_enable(priv); | |
1313 | cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX); | |
1314 | cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX); | |
1315 | ||
a11fbba9 SS |
1316 | prim_cpsw = cpsw_get_slave_priv(priv, 0); |
1317 | if (prim_cpsw->irq_enabled == false) { | |
1318 | if ((priv == prim_cpsw) || !netif_running(prim_cpsw->ndev)) { | |
1319 | prim_cpsw->irq_enabled = true; | |
1320 | cpsw_enable_irq(prim_cpsw); | |
1321 | } | |
1322 | } | |
1323 | ||
d9ba8f9e M |
1324 | if (priv->data.dual_emac) |
1325 | priv->slaves[priv->emac_port].open_stat = true; | |
df828598 | 1326 | return 0; |
df828598 | 1327 | |
aacebbf8 SS |
1328 | err_cleanup: |
1329 | cpdma_ctlr_stop(priv->dma); | |
1330 | for_each_slave(priv, cpsw_slave_stop, priv); | |
1331 | pm_runtime_put_sync(&priv->pdev->dev); | |
1332 | netif_carrier_off(priv->ndev); | |
1333 | return ret; | |
df828598 M |
1334 | } |
1335 | ||
1336 | static int cpsw_ndo_stop(struct net_device *ndev) | |
1337 | { | |
1338 | struct cpsw_priv *priv = netdev_priv(ndev); | |
1339 | ||
1340 | cpsw_info(priv, ifdown, "shutting down cpsw device\n"); | |
df828598 M |
1341 | netif_stop_queue(priv->ndev); |
1342 | napi_disable(&priv->napi); | |
1343 | netif_carrier_off(priv->ndev); | |
d9ba8f9e M |
1344 | |
1345 | if (cpsw_common_res_usage_state(priv) <= 1) { | |
f280e89a | 1346 | cpts_unregister(priv->cpts); |
d9ba8f9e M |
1347 | cpsw_intr_disable(priv); |
1348 | cpdma_ctlr_int_ctrl(priv->dma, false); | |
1349 | cpdma_ctlr_stop(priv->dma); | |
1350 | cpsw_ale_stop(priv->ale); | |
1351 | } | |
df828598 | 1352 | for_each_slave(priv, cpsw_slave_stop, priv); |
f150bd7f | 1353 | pm_runtime_put_sync(&priv->pdev->dev); |
d9ba8f9e M |
1354 | if (priv->data.dual_emac) |
1355 | priv->slaves[priv->emac_port].open_stat = false; | |
df828598 M |
1356 | return 0; |
1357 | } | |
1358 | ||
1359 | static netdev_tx_t cpsw_ndo_start_xmit(struct sk_buff *skb, | |
1360 | struct net_device *ndev) | |
1361 | { | |
1362 | struct cpsw_priv *priv = netdev_priv(ndev); | |
1363 | int ret; | |
1364 | ||
1365 | ndev->trans_start = jiffies; | |
1366 | ||
1367 | if (skb_padto(skb, CPSW_MIN_PACKET_SIZE)) { | |
1368 | cpsw_err(priv, tx_err, "packet pad failed\n"); | |
8dc43ddc | 1369 | ndev->stats.tx_dropped++; |
df828598 M |
1370 | return NETDEV_TX_OK; |
1371 | } | |
1372 | ||
9232b16d M |
1373 | if (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP && |
1374 | priv->cpts->tx_enable) | |
2e5b38ab RC |
1375 | skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; |
1376 | ||
1377 | skb_tx_timestamp(skb); | |
1378 | ||
d9ba8f9e | 1379 | ret = cpsw_tx_packet_submit(ndev, priv, skb); |
df828598 M |
1380 | if (unlikely(ret != 0)) { |
1381 | cpsw_err(priv, tx_err, "desc submit failed\n"); | |
1382 | goto fail; | |
1383 | } | |
1384 | ||
fae50823 M |
1385 | /* If there is no more tx desc left free then we need to |
1386 | * tell the kernel to stop sending us tx frames. | |
1387 | */ | |
d35162f8 | 1388 | if (unlikely(!cpdma_check_free_tx_desc(priv->txch))) |
fae50823 M |
1389 | netif_stop_queue(ndev); |
1390 | ||
df828598 M |
1391 | return NETDEV_TX_OK; |
1392 | fail: | |
8dc43ddc | 1393 | ndev->stats.tx_dropped++; |
df828598 M |
1394 | netif_stop_queue(ndev); |
1395 | return NETDEV_TX_BUSY; | |
1396 | } | |
1397 | ||
2e5b38ab RC |
1398 | #ifdef CONFIG_TI_CPTS |
1399 | ||
1400 | static void cpsw_hwtstamp_v1(struct cpsw_priv *priv) | |
1401 | { | |
e86ac13b | 1402 | struct cpsw_slave *slave = &priv->slaves[priv->data.active_slave]; |
2e5b38ab RC |
1403 | u32 ts_en, seq_id; |
1404 | ||
9232b16d | 1405 | if (!priv->cpts->tx_enable && !priv->cpts->rx_enable) { |
2e5b38ab RC |
1406 | slave_write(slave, 0, CPSW1_TS_CTL); |
1407 | return; | |
1408 | } | |
1409 | ||
1410 | seq_id = (30 << CPSW_V1_SEQ_ID_OFS_SHIFT) | ETH_P_1588; | |
1411 | ts_en = EVENT_MSG_BITS << CPSW_V1_MSG_TYPE_OFS; | |
1412 | ||
9232b16d | 1413 | if (priv->cpts->tx_enable) |
2e5b38ab RC |
1414 | ts_en |= CPSW_V1_TS_TX_EN; |
1415 | ||
9232b16d | 1416 | if (priv->cpts->rx_enable) |
2e5b38ab RC |
1417 | ts_en |= CPSW_V1_TS_RX_EN; |
1418 | ||
1419 | slave_write(slave, ts_en, CPSW1_TS_CTL); | |
1420 | slave_write(slave, seq_id, CPSW1_TS_SEQ_LTYPE); | |
1421 | } | |
1422 | ||
1423 | static void cpsw_hwtstamp_v2(struct cpsw_priv *priv) | |
1424 | { | |
d9ba8f9e | 1425 | struct cpsw_slave *slave; |
2e5b38ab RC |
1426 | u32 ctrl, mtype; |
1427 | ||
d9ba8f9e M |
1428 | if (priv->data.dual_emac) |
1429 | slave = &priv->slaves[priv->emac_port]; | |
1430 | else | |
e86ac13b | 1431 | slave = &priv->slaves[priv->data.active_slave]; |
d9ba8f9e | 1432 | |
2e5b38ab | 1433 | ctrl = slave_read(slave, CPSW2_CONTROL); |
09c55372 GC |
1434 | switch (priv->version) { |
1435 | case CPSW_VERSION_2: | |
1436 | ctrl &= ~CTRL_V2_ALL_TS_MASK; | |
2e5b38ab | 1437 | |
09c55372 GC |
1438 | if (priv->cpts->tx_enable) |
1439 | ctrl |= CTRL_V2_TX_TS_BITS; | |
2e5b38ab | 1440 | |
09c55372 GC |
1441 | if (priv->cpts->rx_enable) |
1442 | ctrl |= CTRL_V2_RX_TS_BITS; | |
1443 | break; | |
1444 | case CPSW_VERSION_3: | |
1445 | default: | |
1446 | ctrl &= ~CTRL_V3_ALL_TS_MASK; | |
1447 | ||
1448 | if (priv->cpts->tx_enable) | |
1449 | ctrl |= CTRL_V3_TX_TS_BITS; | |
1450 | ||
1451 | if (priv->cpts->rx_enable) | |
1452 | ctrl |= CTRL_V3_RX_TS_BITS; | |
1453 | break; | |
1454 | } | |
2e5b38ab RC |
1455 | |
1456 | mtype = (30 << TS_SEQ_ID_OFFSET_SHIFT) | EVENT_MSG_BITS; | |
1457 | ||
1458 | slave_write(slave, mtype, CPSW2_TS_SEQ_MTYPE); | |
1459 | slave_write(slave, ctrl, CPSW2_CONTROL); | |
1460 | __raw_writel(ETH_P_1588, &priv->regs->ts_ltype); | |
1461 | } | |
1462 | ||
a5b4145b | 1463 | static int cpsw_hwtstamp_set(struct net_device *dev, struct ifreq *ifr) |
2e5b38ab | 1464 | { |
3177bf6f | 1465 | struct cpsw_priv *priv = netdev_priv(dev); |
9232b16d | 1466 | struct cpts *cpts = priv->cpts; |
2e5b38ab RC |
1467 | struct hwtstamp_config cfg; |
1468 | ||
2ee91e54 | 1469 | if (priv->version != CPSW_VERSION_1 && |
f7d403cb GC |
1470 | priv->version != CPSW_VERSION_2 && |
1471 | priv->version != CPSW_VERSION_3) | |
2ee91e54 BH |
1472 | return -EOPNOTSUPP; |
1473 | ||
2e5b38ab RC |
1474 | if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg))) |
1475 | return -EFAULT; | |
1476 | ||
1477 | /* reserved for future extensions */ | |
1478 | if (cfg.flags) | |
1479 | return -EINVAL; | |
1480 | ||
2ee91e54 | 1481 | if (cfg.tx_type != HWTSTAMP_TX_OFF && cfg.tx_type != HWTSTAMP_TX_ON) |
2e5b38ab | 1482 | return -ERANGE; |
2e5b38ab RC |
1483 | |
1484 | switch (cfg.rx_filter) { | |
1485 | case HWTSTAMP_FILTER_NONE: | |
1486 | cpts->rx_enable = 0; | |
1487 | break; | |
1488 | case HWTSTAMP_FILTER_ALL: | |
1489 | case HWTSTAMP_FILTER_PTP_V1_L4_EVENT: | |
1490 | case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: | |
1491 | case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ: | |
1492 | return -ERANGE; | |
1493 | case HWTSTAMP_FILTER_PTP_V2_L4_EVENT: | |
1494 | case HWTSTAMP_FILTER_PTP_V2_L4_SYNC: | |
1495 | case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ: | |
1496 | case HWTSTAMP_FILTER_PTP_V2_L2_EVENT: | |
1497 | case HWTSTAMP_FILTER_PTP_V2_L2_SYNC: | |
1498 | case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ: | |
1499 | case HWTSTAMP_FILTER_PTP_V2_EVENT: | |
1500 | case HWTSTAMP_FILTER_PTP_V2_SYNC: | |
1501 | case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ: | |
1502 | cpts->rx_enable = 1; | |
1503 | cfg.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT; | |
1504 | break; | |
1505 | default: | |
1506 | return -ERANGE; | |
1507 | } | |
1508 | ||
2ee91e54 BH |
1509 | cpts->tx_enable = cfg.tx_type == HWTSTAMP_TX_ON; |
1510 | ||
2e5b38ab RC |
1511 | switch (priv->version) { |
1512 | case CPSW_VERSION_1: | |
1513 | cpsw_hwtstamp_v1(priv); | |
1514 | break; | |
1515 | case CPSW_VERSION_2: | |
f7d403cb | 1516 | case CPSW_VERSION_3: |
2e5b38ab RC |
1517 | cpsw_hwtstamp_v2(priv); |
1518 | break; | |
1519 | default: | |
2ee91e54 | 1520 | WARN_ON(1); |
2e5b38ab RC |
1521 | } |
1522 | ||
1523 | return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0; | |
1524 | } | |
1525 | ||
a5b4145b BH |
1526 | static int cpsw_hwtstamp_get(struct net_device *dev, struct ifreq *ifr) |
1527 | { | |
1528 | struct cpsw_priv *priv = netdev_priv(dev); | |
1529 | struct cpts *cpts = priv->cpts; | |
1530 | struct hwtstamp_config cfg; | |
1531 | ||
1532 | if (priv->version != CPSW_VERSION_1 && | |
f7d403cb GC |
1533 | priv->version != CPSW_VERSION_2 && |
1534 | priv->version != CPSW_VERSION_3) | |
a5b4145b BH |
1535 | return -EOPNOTSUPP; |
1536 | ||
1537 | cfg.flags = 0; | |
1538 | cfg.tx_type = cpts->tx_enable ? HWTSTAMP_TX_ON : HWTSTAMP_TX_OFF; | |
1539 | cfg.rx_filter = (cpts->rx_enable ? | |
1540 | HWTSTAMP_FILTER_PTP_V2_EVENT : HWTSTAMP_FILTER_NONE); | |
1541 | ||
1542 | return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0; | |
1543 | } | |
1544 | ||
2e5b38ab RC |
1545 | #endif /*CONFIG_TI_CPTS*/ |
1546 | ||
1547 | static int cpsw_ndo_ioctl(struct net_device *dev, struct ifreq *req, int cmd) | |
1548 | { | |
11f2c988 | 1549 | struct cpsw_priv *priv = netdev_priv(dev); |
11f2c988 M |
1550 | int slave_no = cpsw_slave_index(priv); |
1551 | ||
2e5b38ab RC |
1552 | if (!netif_running(dev)) |
1553 | return -EINVAL; | |
1554 | ||
11f2c988 | 1555 | switch (cmd) { |
2e5b38ab | 1556 | #ifdef CONFIG_TI_CPTS |
11f2c988 | 1557 | case SIOCSHWTSTAMP: |
a5b4145b BH |
1558 | return cpsw_hwtstamp_set(dev, req); |
1559 | case SIOCGHWTSTAMP: | |
1560 | return cpsw_hwtstamp_get(dev, req); | |
2e5b38ab | 1561 | #endif |
11f2c988 M |
1562 | } |
1563 | ||
c1b59947 SS |
1564 | if (!priv->slaves[slave_no].phy) |
1565 | return -EOPNOTSUPP; | |
1566 | return phy_mii_ioctl(priv->slaves[slave_no].phy, req, cmd); | |
2e5b38ab RC |
1567 | } |
1568 | ||
df828598 M |
1569 | static void cpsw_ndo_tx_timeout(struct net_device *ndev) |
1570 | { | |
1571 | struct cpsw_priv *priv = netdev_priv(ndev); | |
1572 | ||
1573 | cpsw_err(priv, tx_err, "transmit timeout, restarting dma\n"); | |
8dc43ddc | 1574 | ndev->stats.tx_errors++; |
df828598 M |
1575 | cpsw_intr_disable(priv); |
1576 | cpdma_ctlr_int_ctrl(priv->dma, false); | |
1577 | cpdma_chan_stop(priv->txch); | |
1578 | cpdma_chan_start(priv->txch); | |
1579 | cpdma_ctlr_int_ctrl(priv->dma, true); | |
1580 | cpsw_intr_enable(priv); | |
510a1e72 M |
1581 | cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX); |
1582 | cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX); | |
1583 | ||
df828598 M |
1584 | } |
1585 | ||
dcfd8d58 M |
1586 | static int cpsw_ndo_set_mac_address(struct net_device *ndev, void *p) |
1587 | { | |
1588 | struct cpsw_priv *priv = netdev_priv(ndev); | |
1589 | struct sockaddr *addr = (struct sockaddr *)p; | |
1590 | int flags = 0; | |
1591 | u16 vid = 0; | |
1592 | ||
1593 | if (!is_valid_ether_addr(addr->sa_data)) | |
1594 | return -EADDRNOTAVAIL; | |
1595 | ||
1596 | if (priv->data.dual_emac) { | |
1597 | vid = priv->slaves[priv->emac_port].port_vlan; | |
1598 | flags = ALE_VLAN; | |
1599 | } | |
1600 | ||
1601 | cpsw_ale_del_ucast(priv->ale, priv->mac_addr, priv->host_port, | |
1602 | flags, vid); | |
1603 | cpsw_ale_add_ucast(priv->ale, addr->sa_data, priv->host_port, | |
1604 | flags, vid); | |
1605 | ||
1606 | memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN); | |
1607 | memcpy(ndev->dev_addr, priv->mac_addr, ETH_ALEN); | |
1608 | for_each_slave(priv, cpsw_set_slave_mac, priv); | |
1609 | ||
1610 | return 0; | |
1611 | } | |
1612 | ||
df828598 M |
1613 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1614 | static void cpsw_ndo_poll_controller(struct net_device *ndev) | |
1615 | { | |
1616 | struct cpsw_priv *priv = netdev_priv(ndev); | |
1617 | ||
1618 | cpsw_intr_disable(priv); | |
1619 | cpdma_ctlr_int_ctrl(priv->dma, false); | |
1620 | cpsw_interrupt(ndev->irq, priv); | |
1621 | cpdma_ctlr_int_ctrl(priv->dma, true); | |
1622 | cpsw_intr_enable(priv); | |
510a1e72 M |
1623 | cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX); |
1624 | cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX); | |
1625 | ||
df828598 M |
1626 | } |
1627 | #endif | |
1628 | ||
3b72c2fe M |
1629 | static inline int cpsw_add_vlan_ale_entry(struct cpsw_priv *priv, |
1630 | unsigned short vid) | |
1631 | { | |
1632 | int ret; | |
1e5c4bc4 LS |
1633 | int unreg_mcast_mask; |
1634 | ||
1635 | if (priv->ndev->flags & IFF_ALLMULTI) | |
1636 | unreg_mcast_mask = ALE_ALL_PORTS; | |
1637 | else | |
1638 | unreg_mcast_mask = ALE_PORT_1 | ALE_PORT_2; | |
3b72c2fe M |
1639 | |
1640 | ret = cpsw_ale_add_vlan(priv->ale, vid, | |
1641 | ALE_ALL_PORTS << priv->host_port, | |
1642 | 0, ALE_ALL_PORTS << priv->host_port, | |
1e5c4bc4 | 1643 | unreg_mcast_mask << priv->host_port); |
3b72c2fe M |
1644 | if (ret != 0) |
1645 | return ret; | |
1646 | ||
1647 | ret = cpsw_ale_add_ucast(priv->ale, priv->mac_addr, | |
1648 | priv->host_port, ALE_VLAN, vid); | |
1649 | if (ret != 0) | |
1650 | goto clean_vid; | |
1651 | ||
1652 | ret = cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast, | |
1653 | ALE_ALL_PORTS << priv->host_port, | |
1654 | ALE_VLAN, vid, 0); | |
1655 | if (ret != 0) | |
1656 | goto clean_vlan_ucast; | |
1657 | return 0; | |
1658 | ||
1659 | clean_vlan_ucast: | |
1660 | cpsw_ale_del_ucast(priv->ale, priv->mac_addr, | |
1661 | priv->host_port, ALE_VLAN, vid); | |
1662 | clean_vid: | |
1663 | cpsw_ale_del_vlan(priv->ale, vid, 0); | |
1664 | return ret; | |
1665 | } | |
1666 | ||
1667 | static int cpsw_ndo_vlan_rx_add_vid(struct net_device *ndev, | |
80d5c368 | 1668 | __be16 proto, u16 vid) |
3b72c2fe M |
1669 | { |
1670 | struct cpsw_priv *priv = netdev_priv(ndev); | |
1671 | ||
1672 | if (vid == priv->data.default_vlan) | |
1673 | return 0; | |
1674 | ||
1675 | dev_info(priv->dev, "Adding vlanid %d to vlan filter\n", vid); | |
1676 | return cpsw_add_vlan_ale_entry(priv, vid); | |
1677 | } | |
1678 | ||
1679 | static int cpsw_ndo_vlan_rx_kill_vid(struct net_device *ndev, | |
80d5c368 | 1680 | __be16 proto, u16 vid) |
3b72c2fe M |
1681 | { |
1682 | struct cpsw_priv *priv = netdev_priv(ndev); | |
1683 | int ret; | |
1684 | ||
1685 | if (vid == priv->data.default_vlan) | |
1686 | return 0; | |
1687 | ||
1688 | dev_info(priv->dev, "removing vlanid %d from vlan filter\n", vid); | |
1689 | ret = cpsw_ale_del_vlan(priv->ale, vid, 0); | |
1690 | if (ret != 0) | |
1691 | return ret; | |
1692 | ||
1693 | ret = cpsw_ale_del_ucast(priv->ale, priv->mac_addr, | |
1694 | priv->host_port, ALE_VLAN, vid); | |
1695 | if (ret != 0) | |
1696 | return ret; | |
1697 | ||
1698 | return cpsw_ale_del_mcast(priv->ale, priv->ndev->broadcast, | |
1699 | 0, ALE_VLAN, vid); | |
1700 | } | |
1701 | ||
df828598 M |
1702 | static const struct net_device_ops cpsw_netdev_ops = { |
1703 | .ndo_open = cpsw_ndo_open, | |
1704 | .ndo_stop = cpsw_ndo_stop, | |
1705 | .ndo_start_xmit = cpsw_ndo_start_xmit, | |
dcfd8d58 | 1706 | .ndo_set_mac_address = cpsw_ndo_set_mac_address, |
2e5b38ab | 1707 | .ndo_do_ioctl = cpsw_ndo_ioctl, |
df828598 | 1708 | .ndo_validate_addr = eth_validate_addr, |
5c473ed2 | 1709 | .ndo_change_mtu = eth_change_mtu, |
df828598 | 1710 | .ndo_tx_timeout = cpsw_ndo_tx_timeout, |
5c50a856 | 1711 | .ndo_set_rx_mode = cpsw_ndo_set_rx_mode, |
df828598 M |
1712 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1713 | .ndo_poll_controller = cpsw_ndo_poll_controller, | |
1714 | #endif | |
3b72c2fe M |
1715 | .ndo_vlan_rx_add_vid = cpsw_ndo_vlan_rx_add_vid, |
1716 | .ndo_vlan_rx_kill_vid = cpsw_ndo_vlan_rx_kill_vid, | |
df828598 M |
1717 | }; |
1718 | ||
52c4f0ec M |
1719 | static int cpsw_get_regs_len(struct net_device *ndev) |
1720 | { | |
1721 | struct cpsw_priv *priv = netdev_priv(ndev); | |
1722 | ||
1723 | return priv->data.ale_entries * ALE_ENTRY_WORDS * sizeof(u32); | |
1724 | } | |
1725 | ||
1726 | static void cpsw_get_regs(struct net_device *ndev, | |
1727 | struct ethtool_regs *regs, void *p) | |
1728 | { | |
1729 | struct cpsw_priv *priv = netdev_priv(ndev); | |
1730 | u32 *reg = p; | |
1731 | ||
1732 | /* update CPSW IP version */ | |
1733 | regs->version = priv->version; | |
1734 | ||
1735 | cpsw_ale_dump(priv->ale, reg); | |
1736 | } | |
1737 | ||
df828598 M |
1738 | static void cpsw_get_drvinfo(struct net_device *ndev, |
1739 | struct ethtool_drvinfo *info) | |
1740 | { | |
1741 | struct cpsw_priv *priv = netdev_priv(ndev); | |
7826d43f | 1742 | |
52c4f0ec | 1743 | strlcpy(info->driver, "cpsw", sizeof(info->driver)); |
7826d43f JP |
1744 | strlcpy(info->version, "1.0", sizeof(info->version)); |
1745 | strlcpy(info->bus_info, priv->pdev->name, sizeof(info->bus_info)); | |
52c4f0ec | 1746 | info->regdump_len = cpsw_get_regs_len(ndev); |
df828598 M |
1747 | } |
1748 | ||
1749 | static u32 cpsw_get_msglevel(struct net_device *ndev) | |
1750 | { | |
1751 | struct cpsw_priv *priv = netdev_priv(ndev); | |
1752 | return priv->msg_enable; | |
1753 | } | |
1754 | ||
1755 | static void cpsw_set_msglevel(struct net_device *ndev, u32 value) | |
1756 | { | |
1757 | struct cpsw_priv *priv = netdev_priv(ndev); | |
1758 | priv->msg_enable = value; | |
1759 | } | |
1760 | ||
2e5b38ab RC |
1761 | static int cpsw_get_ts_info(struct net_device *ndev, |
1762 | struct ethtool_ts_info *info) | |
1763 | { | |
1764 | #ifdef CONFIG_TI_CPTS | |
1765 | struct cpsw_priv *priv = netdev_priv(ndev); | |
1766 | ||
1767 | info->so_timestamping = | |
1768 | SOF_TIMESTAMPING_TX_HARDWARE | | |
1769 | SOF_TIMESTAMPING_TX_SOFTWARE | | |
1770 | SOF_TIMESTAMPING_RX_HARDWARE | | |
1771 | SOF_TIMESTAMPING_RX_SOFTWARE | | |
1772 | SOF_TIMESTAMPING_SOFTWARE | | |
1773 | SOF_TIMESTAMPING_RAW_HARDWARE; | |
9232b16d | 1774 | info->phc_index = priv->cpts->phc_index; |
2e5b38ab RC |
1775 | info->tx_types = |
1776 | (1 << HWTSTAMP_TX_OFF) | | |
1777 | (1 << HWTSTAMP_TX_ON); | |
1778 | info->rx_filters = | |
1779 | (1 << HWTSTAMP_FILTER_NONE) | | |
1780 | (1 << HWTSTAMP_FILTER_PTP_V2_EVENT); | |
1781 | #else | |
1782 | info->so_timestamping = | |
1783 | SOF_TIMESTAMPING_TX_SOFTWARE | | |
1784 | SOF_TIMESTAMPING_RX_SOFTWARE | | |
1785 | SOF_TIMESTAMPING_SOFTWARE; | |
1786 | info->phc_index = -1; | |
1787 | info->tx_types = 0; | |
1788 | info->rx_filters = 0; | |
1789 | #endif | |
1790 | return 0; | |
1791 | } | |
1792 | ||
d3bb9c58 M |
1793 | static int cpsw_get_settings(struct net_device *ndev, |
1794 | struct ethtool_cmd *ecmd) | |
1795 | { | |
1796 | struct cpsw_priv *priv = netdev_priv(ndev); | |
1797 | int slave_no = cpsw_slave_index(priv); | |
1798 | ||
1799 | if (priv->slaves[slave_no].phy) | |
1800 | return phy_ethtool_gset(priv->slaves[slave_no].phy, ecmd); | |
1801 | else | |
1802 | return -EOPNOTSUPP; | |
1803 | } | |
1804 | ||
1805 | static int cpsw_set_settings(struct net_device *ndev, struct ethtool_cmd *ecmd) | |
1806 | { | |
1807 | struct cpsw_priv *priv = netdev_priv(ndev); | |
1808 | int slave_no = cpsw_slave_index(priv); | |
1809 | ||
1810 | if (priv->slaves[slave_no].phy) | |
1811 | return phy_ethtool_sset(priv->slaves[slave_no].phy, ecmd); | |
1812 | else | |
1813 | return -EOPNOTSUPP; | |
1814 | } | |
1815 | ||
d8a64420 MU |
1816 | static void cpsw_get_wol(struct net_device *ndev, struct ethtool_wolinfo *wol) |
1817 | { | |
1818 | struct cpsw_priv *priv = netdev_priv(ndev); | |
1819 | int slave_no = cpsw_slave_index(priv); | |
1820 | ||
1821 | wol->supported = 0; | |
1822 | wol->wolopts = 0; | |
1823 | ||
1824 | if (priv->slaves[slave_no].phy) | |
1825 | phy_ethtool_get_wol(priv->slaves[slave_no].phy, wol); | |
1826 | } | |
1827 | ||
1828 | static int cpsw_set_wol(struct net_device *ndev, struct ethtool_wolinfo *wol) | |
1829 | { | |
1830 | struct cpsw_priv *priv = netdev_priv(ndev); | |
1831 | int slave_no = cpsw_slave_index(priv); | |
1832 | ||
1833 | if (priv->slaves[slave_no].phy) | |
1834 | return phy_ethtool_set_wol(priv->slaves[slave_no].phy, wol); | |
1835 | else | |
1836 | return -EOPNOTSUPP; | |
1837 | } | |
1838 | ||
1923d6e4 M |
1839 | static void cpsw_get_pauseparam(struct net_device *ndev, |
1840 | struct ethtool_pauseparam *pause) | |
1841 | { | |
1842 | struct cpsw_priv *priv = netdev_priv(ndev); | |
1843 | ||
1844 | pause->autoneg = AUTONEG_DISABLE; | |
1845 | pause->rx_pause = priv->rx_pause ? true : false; | |
1846 | pause->tx_pause = priv->tx_pause ? true : false; | |
1847 | } | |
1848 | ||
1849 | static int cpsw_set_pauseparam(struct net_device *ndev, | |
1850 | struct ethtool_pauseparam *pause) | |
1851 | { | |
1852 | struct cpsw_priv *priv = netdev_priv(ndev); | |
1853 | bool link; | |
1854 | ||
1855 | priv->rx_pause = pause->rx_pause ? true : false; | |
1856 | priv->tx_pause = pause->tx_pause ? true : false; | |
1857 | ||
1858 | for_each_slave(priv, _cpsw_adjust_link, priv, &link); | |
1859 | ||
1860 | return 0; | |
1861 | } | |
1862 | ||
df828598 M |
1863 | static const struct ethtool_ops cpsw_ethtool_ops = { |
1864 | .get_drvinfo = cpsw_get_drvinfo, | |
1865 | .get_msglevel = cpsw_get_msglevel, | |
1866 | .set_msglevel = cpsw_set_msglevel, | |
1867 | .get_link = ethtool_op_get_link, | |
2e5b38ab | 1868 | .get_ts_info = cpsw_get_ts_info, |
d3bb9c58 M |
1869 | .get_settings = cpsw_get_settings, |
1870 | .set_settings = cpsw_set_settings, | |
ff5b8ef2 M |
1871 | .get_coalesce = cpsw_get_coalesce, |
1872 | .set_coalesce = cpsw_set_coalesce, | |
d9718546 M |
1873 | .get_sset_count = cpsw_get_sset_count, |
1874 | .get_strings = cpsw_get_strings, | |
1875 | .get_ethtool_stats = cpsw_get_ethtool_stats, | |
1923d6e4 M |
1876 | .get_pauseparam = cpsw_get_pauseparam, |
1877 | .set_pauseparam = cpsw_set_pauseparam, | |
d8a64420 MU |
1878 | .get_wol = cpsw_get_wol, |
1879 | .set_wol = cpsw_set_wol, | |
52c4f0ec M |
1880 | .get_regs_len = cpsw_get_regs_len, |
1881 | .get_regs = cpsw_get_regs, | |
df828598 M |
1882 | }; |
1883 | ||
549985ee RC |
1884 | static void cpsw_slave_init(struct cpsw_slave *slave, struct cpsw_priv *priv, |
1885 | u32 slave_reg_ofs, u32 sliver_reg_ofs) | |
df828598 M |
1886 | { |
1887 | void __iomem *regs = priv->regs; | |
1888 | int slave_num = slave->slave_num; | |
1889 | struct cpsw_slave_data *data = priv->data.slave_data + slave_num; | |
1890 | ||
1891 | slave->data = data; | |
549985ee RC |
1892 | slave->regs = regs + slave_reg_ofs; |
1893 | slave->sliver = regs + sliver_reg_ofs; | |
d9ba8f9e | 1894 | slave->port_vlan = data->dual_emac_res_vlan; |
df828598 M |
1895 | } |
1896 | ||
0ba517b1 MP |
1897 | #define AM33XX_CTRL_MAC_LO_REG(id) (0x630 + 0x8 * id) |
1898 | #define AM33XX_CTRL_MAC_HI_REG(id) (0x630 + 0x8 * id + 0x4) | |
1899 | ||
1900 | static int cpsw_am33xx_cm_get_macid(struct device *dev, int slave, | |
1901 | u8 *mac_addr) | |
1902 | { | |
1903 | u32 macid_lo; | |
1904 | u32 macid_hi; | |
1905 | struct regmap *syscon; | |
1906 | ||
1907 | syscon = syscon_regmap_lookup_by_phandle(dev->of_node, "syscon"); | |
1908 | if (IS_ERR(syscon)) { | |
1909 | if (PTR_ERR(syscon) == -ENODEV) | |
1910 | return 0; | |
1911 | return PTR_ERR(syscon); | |
1912 | } | |
1913 | ||
1914 | regmap_read(syscon, AM33XX_CTRL_MAC_LO_REG(slave), &macid_lo); | |
1915 | regmap_read(syscon, AM33XX_CTRL_MAC_HI_REG(slave), &macid_hi); | |
1916 | ||
1917 | mac_addr[5] = (macid_lo >> 8) & 0xff; | |
1918 | mac_addr[4] = macid_lo & 0xff; | |
1919 | mac_addr[3] = (macid_hi >> 24) & 0xff; | |
1920 | mac_addr[2] = (macid_hi >> 16) & 0xff; | |
1921 | mac_addr[1] = (macid_hi >> 8) & 0xff; | |
1922 | mac_addr[0] = macid_hi & 0xff; | |
1923 | ||
1924 | return 0; | |
1925 | } | |
1926 | ||
2eb32b0a M |
1927 | static int cpsw_probe_dt(struct cpsw_platform_data *data, |
1928 | struct platform_device *pdev) | |
1929 | { | |
1930 | struct device_node *node = pdev->dev.of_node; | |
1931 | struct device_node *slave_node; | |
1932 | int i = 0, ret; | |
1933 | u32 prop; | |
1934 | ||
1935 | if (!node) | |
1936 | return -EINVAL; | |
1937 | ||
1938 | if (of_property_read_u32(node, "slaves", &prop)) { | |
88c99ff6 | 1939 | dev_err(&pdev->dev, "Missing slaves property in the DT.\n"); |
2eb32b0a M |
1940 | return -EINVAL; |
1941 | } | |
1942 | data->slaves = prop; | |
1943 | ||
e86ac13b | 1944 | if (of_property_read_u32(node, "active_slave", &prop)) { |
88c99ff6 | 1945 | dev_err(&pdev->dev, "Missing active_slave property in the DT.\n"); |
aa1a15e2 | 1946 | return -EINVAL; |
78ca0b28 | 1947 | } |
e86ac13b | 1948 | data->active_slave = prop; |
78ca0b28 | 1949 | |
00ab94ee | 1950 | if (of_property_read_u32(node, "cpts_clock_mult", &prop)) { |
88c99ff6 | 1951 | dev_err(&pdev->dev, "Missing cpts_clock_mult property in the DT.\n"); |
aa1a15e2 | 1952 | return -EINVAL; |
00ab94ee RC |
1953 | } |
1954 | data->cpts_clock_mult = prop; | |
1955 | ||
1956 | if (of_property_read_u32(node, "cpts_clock_shift", &prop)) { | |
88c99ff6 | 1957 | dev_err(&pdev->dev, "Missing cpts_clock_shift property in the DT.\n"); |
aa1a15e2 | 1958 | return -EINVAL; |
00ab94ee RC |
1959 | } |
1960 | data->cpts_clock_shift = prop; | |
1961 | ||
aa1a15e2 DM |
1962 | data->slave_data = devm_kzalloc(&pdev->dev, data->slaves |
1963 | * sizeof(struct cpsw_slave_data), | |
1964 | GFP_KERNEL); | |
b2adaca9 | 1965 | if (!data->slave_data) |
aa1a15e2 | 1966 | return -ENOMEM; |
2eb32b0a | 1967 | |
2eb32b0a | 1968 | if (of_property_read_u32(node, "cpdma_channels", &prop)) { |
88c99ff6 | 1969 | dev_err(&pdev->dev, "Missing cpdma_channels property in the DT.\n"); |
aa1a15e2 | 1970 | return -EINVAL; |
2eb32b0a M |
1971 | } |
1972 | data->channels = prop; | |
1973 | ||
2eb32b0a | 1974 | if (of_property_read_u32(node, "ale_entries", &prop)) { |
88c99ff6 | 1975 | dev_err(&pdev->dev, "Missing ale_entries property in the DT.\n"); |
aa1a15e2 | 1976 | return -EINVAL; |
2eb32b0a M |
1977 | } |
1978 | data->ale_entries = prop; | |
1979 | ||
2eb32b0a | 1980 | if (of_property_read_u32(node, "bd_ram_size", &prop)) { |
88c99ff6 | 1981 | dev_err(&pdev->dev, "Missing bd_ram_size property in the DT.\n"); |
aa1a15e2 | 1982 | return -EINVAL; |
2eb32b0a M |
1983 | } |
1984 | data->bd_ram_size = prop; | |
1985 | ||
1986 | if (of_property_read_u32(node, "rx_descs", &prop)) { | |
88c99ff6 | 1987 | dev_err(&pdev->dev, "Missing rx_descs property in the DT.\n"); |
aa1a15e2 | 1988 | return -EINVAL; |
2eb32b0a M |
1989 | } |
1990 | data->rx_descs = prop; | |
1991 | ||
1992 | if (of_property_read_u32(node, "mac_control", &prop)) { | |
88c99ff6 | 1993 | dev_err(&pdev->dev, "Missing mac_control property in the DT.\n"); |
aa1a15e2 | 1994 | return -EINVAL; |
2eb32b0a M |
1995 | } |
1996 | data->mac_control = prop; | |
1997 | ||
281abd96 MP |
1998 | if (of_property_read_bool(node, "dual_emac")) |
1999 | data->dual_emac = 1; | |
d9ba8f9e | 2000 | |
549985ee RC |
2001 | /* |
2002 | * Populate all the child nodes here... | |
2003 | */ | |
2004 | ret = of_platform_populate(node, NULL, NULL, &pdev->dev); | |
2005 | /* We do not want to force this, as in some cases may not have child */ | |
2006 | if (ret) | |
88c99ff6 | 2007 | dev_warn(&pdev->dev, "Doesn't have any child node\n"); |
549985ee | 2008 | |
f468b10e | 2009 | for_each_child_of_node(node, slave_node) { |
2eb32b0a | 2010 | struct cpsw_slave_data *slave_data = data->slave_data + i; |
2eb32b0a | 2011 | const void *mac_addr = NULL; |
549985ee RC |
2012 | u32 phyid; |
2013 | int lenp; | |
2014 | const __be32 *parp; | |
2015 | struct device_node *mdio_node; | |
2016 | struct platform_device *mdio; | |
2017 | ||
f468b10e MP |
2018 | /* This is no slave child node, continue */ |
2019 | if (strcmp(slave_node->name, "slave")) | |
2020 | continue; | |
2021 | ||
549985ee | 2022 | parp = of_get_property(slave_node, "phy_id", &lenp); |
ce16294f | 2023 | if ((parp == NULL) || (lenp != (sizeof(void *) * 2))) { |
88c99ff6 | 2024 | dev_err(&pdev->dev, "Missing slave[%d] phy_id property\n", i); |
47276fcc | 2025 | goto no_phy_slave; |
2eb32b0a | 2026 | } |
549985ee RC |
2027 | mdio_node = of_find_node_by_phandle(be32_to_cpup(parp)); |
2028 | phyid = be32_to_cpup(parp+1); | |
2029 | mdio = of_find_device_by_node(mdio_node); | |
60e71ab5 | 2030 | of_node_put(mdio_node); |
6954cc1f | 2031 | if (!mdio) { |
56fdb2e0 | 2032 | dev_err(&pdev->dev, "Missing mdio platform device\n"); |
6954cc1f | 2033 | return -EINVAL; |
f8d56d8f | 2034 | } |
59993f48 JH |
2035 | snprintf(slave_data->phy_id, sizeof(slave_data->phy_id), |
2036 | PHY_ID_FMT, mdio->name, phyid); | |
2eb32b0a | 2037 | |
47276fcc M |
2038 | slave_data->phy_if = of_get_phy_mode(slave_node); |
2039 | if (slave_data->phy_if < 0) { | |
2040 | dev_err(&pdev->dev, "Missing or malformed slave[%d] phy-mode property\n", | |
2041 | i); | |
2042 | return slave_data->phy_if; | |
2043 | } | |
2044 | ||
2045 | no_phy_slave: | |
2eb32b0a | 2046 | mac_addr = of_get_mac_address(slave_node); |
0ba517b1 | 2047 | if (mac_addr) { |
2eb32b0a | 2048 | memcpy(slave_data->mac_addr, mac_addr, ETH_ALEN); |
0ba517b1 MP |
2049 | } else { |
2050 | if (of_machine_is_compatible("ti,am33xx")) { | |
2051 | ret = cpsw_am33xx_cm_get_macid(&pdev->dev, i, | |
2052 | slave_data->mac_addr); | |
2053 | if (ret) | |
2054 | return ret; | |
2055 | } | |
2056 | } | |
d9ba8f9e | 2057 | if (data->dual_emac) { |
91c4166c | 2058 | if (of_property_read_u32(slave_node, "dual_emac_res_vlan", |
d9ba8f9e | 2059 | &prop)) { |
88c99ff6 | 2060 | dev_err(&pdev->dev, "Missing dual_emac_res_vlan in DT.\n"); |
d9ba8f9e | 2061 | slave_data->dual_emac_res_vlan = i+1; |
88c99ff6 GC |
2062 | dev_err(&pdev->dev, "Using %d as Reserved VLAN for %d slave\n", |
2063 | slave_data->dual_emac_res_vlan, i); | |
d9ba8f9e M |
2064 | } else { |
2065 | slave_data->dual_emac_res_vlan = prop; | |
2066 | } | |
2067 | } | |
2068 | ||
2eb32b0a | 2069 | i++; |
3a27bfac M |
2070 | if (i == data->slaves) |
2071 | break; | |
2eb32b0a M |
2072 | } |
2073 | ||
2074 | return 0; | |
2eb32b0a M |
2075 | } |
2076 | ||
d9ba8f9e M |
2077 | static int cpsw_probe_dual_emac(struct platform_device *pdev, |
2078 | struct cpsw_priv *priv) | |
2079 | { | |
2080 | struct cpsw_platform_data *data = &priv->data; | |
2081 | struct net_device *ndev; | |
2082 | struct cpsw_priv *priv_sl2; | |
2083 | int ret = 0, i; | |
2084 | ||
2085 | ndev = alloc_etherdev(sizeof(struct cpsw_priv)); | |
2086 | if (!ndev) { | |
88c99ff6 | 2087 | dev_err(&pdev->dev, "cpsw: error allocating net_device\n"); |
d9ba8f9e M |
2088 | return -ENOMEM; |
2089 | } | |
2090 | ||
2091 | priv_sl2 = netdev_priv(ndev); | |
2092 | spin_lock_init(&priv_sl2->lock); | |
2093 | priv_sl2->data = *data; | |
2094 | priv_sl2->pdev = pdev; | |
2095 | priv_sl2->ndev = ndev; | |
2096 | priv_sl2->dev = &ndev->dev; | |
2097 | priv_sl2->msg_enable = netif_msg_init(debug_level, CPSW_DEBUG); | |
2098 | priv_sl2->rx_packet_max = max(rx_packet_max, 128); | |
2099 | ||
2100 | if (is_valid_ether_addr(data->slave_data[1].mac_addr)) { | |
2101 | memcpy(priv_sl2->mac_addr, data->slave_data[1].mac_addr, | |
2102 | ETH_ALEN); | |
88c99ff6 | 2103 | dev_info(&pdev->dev, "cpsw: Detected MACID = %pM\n", priv_sl2->mac_addr); |
d9ba8f9e M |
2104 | } else { |
2105 | random_ether_addr(priv_sl2->mac_addr); | |
88c99ff6 | 2106 | dev_info(&pdev->dev, "cpsw: Random MACID = %pM\n", priv_sl2->mac_addr); |
d9ba8f9e M |
2107 | } |
2108 | memcpy(ndev->dev_addr, priv_sl2->mac_addr, ETH_ALEN); | |
2109 | ||
2110 | priv_sl2->slaves = priv->slaves; | |
2111 | priv_sl2->clk = priv->clk; | |
2112 | ||
ff5b8ef2 M |
2113 | priv_sl2->coal_intvl = 0; |
2114 | priv_sl2->bus_freq_mhz = priv->bus_freq_mhz; | |
2115 | ||
d9ba8f9e M |
2116 | priv_sl2->regs = priv->regs; |
2117 | priv_sl2->host_port = priv->host_port; | |
2118 | priv_sl2->host_port_regs = priv->host_port_regs; | |
2119 | priv_sl2->wr_regs = priv->wr_regs; | |
d9718546 | 2120 | priv_sl2->hw_stats = priv->hw_stats; |
d9ba8f9e M |
2121 | priv_sl2->dma = priv->dma; |
2122 | priv_sl2->txch = priv->txch; | |
2123 | priv_sl2->rxch = priv->rxch; | |
2124 | priv_sl2->ale = priv->ale; | |
2125 | priv_sl2->emac_port = 1; | |
2126 | priv->slaves[1].ndev = ndev; | |
2127 | priv_sl2->cpts = priv->cpts; | |
2128 | priv_sl2->version = priv->version; | |
2129 | ||
2130 | for (i = 0; i < priv->num_irqs; i++) { | |
2131 | priv_sl2->irqs_table[i] = priv->irqs_table[i]; | |
2132 | priv_sl2->num_irqs = priv->num_irqs; | |
2133 | } | |
f646968f | 2134 | ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; |
d9ba8f9e M |
2135 | |
2136 | ndev->netdev_ops = &cpsw_netdev_ops; | |
7ad24ea4 | 2137 | ndev->ethtool_ops = &cpsw_ethtool_ops; |
d9ba8f9e M |
2138 | netif_napi_add(ndev, &priv_sl2->napi, cpsw_poll, CPSW_POLL_WEIGHT); |
2139 | ||
2140 | /* register the network device */ | |
2141 | SET_NETDEV_DEV(ndev, &pdev->dev); | |
2142 | ret = register_netdev(ndev); | |
2143 | if (ret) { | |
88c99ff6 | 2144 | dev_err(&pdev->dev, "cpsw: error registering net device\n"); |
d9ba8f9e M |
2145 | free_netdev(ndev); |
2146 | ret = -ENODEV; | |
2147 | } | |
2148 | ||
2149 | return ret; | |
2150 | } | |
2151 | ||
663e12e6 | 2152 | static int cpsw_probe(struct platform_device *pdev) |
df828598 | 2153 | { |
d1bd9acf | 2154 | struct cpsw_platform_data *data; |
df828598 M |
2155 | struct net_device *ndev; |
2156 | struct cpsw_priv *priv; | |
2157 | struct cpdma_params dma_params; | |
2158 | struct cpsw_ale_params ale_params; | |
aa1a15e2 DM |
2159 | void __iomem *ss_regs; |
2160 | struct resource *res, *ss_res; | |
549985ee | 2161 | u32 slave_offset, sliver_offset, slave_size; |
df828598 M |
2162 | int ret = 0, i, k = 0; |
2163 | ||
df828598 M |
2164 | ndev = alloc_etherdev(sizeof(struct cpsw_priv)); |
2165 | if (!ndev) { | |
88c99ff6 | 2166 | dev_err(&pdev->dev, "error allocating net_device\n"); |
df828598 M |
2167 | return -ENOMEM; |
2168 | } | |
2169 | ||
2170 | platform_set_drvdata(pdev, ndev); | |
2171 | priv = netdev_priv(ndev); | |
2172 | spin_lock_init(&priv->lock); | |
df828598 M |
2173 | priv->pdev = pdev; |
2174 | priv->ndev = ndev; | |
2175 | priv->dev = &ndev->dev; | |
2176 | priv->msg_enable = netif_msg_init(debug_level, CPSW_DEBUG); | |
2177 | priv->rx_packet_max = max(rx_packet_max, 128); | |
9232b16d | 2178 | priv->cpts = devm_kzalloc(&pdev->dev, sizeof(struct cpts), GFP_KERNEL); |
7dcf313a | 2179 | priv->irq_enabled = true; |
ab8e99d2 | 2180 | if (!priv->cpts) { |
88c99ff6 | 2181 | dev_err(&pdev->dev, "error allocating cpts\n"); |
4d507dff | 2182 | ret = -ENOMEM; |
9232b16d M |
2183 | goto clean_ndev_ret; |
2184 | } | |
df828598 | 2185 | |
1fb19aa7 VH |
2186 | /* |
2187 | * This may be required here for child devices. | |
2188 | */ | |
2189 | pm_runtime_enable(&pdev->dev); | |
2190 | ||
739683b4 M |
2191 | /* Select default pin state */ |
2192 | pinctrl_pm_select_default_state(&pdev->dev); | |
2193 | ||
2eb32b0a | 2194 | if (cpsw_probe_dt(&priv->data, pdev)) { |
88c99ff6 | 2195 | dev_err(&pdev->dev, "cpsw: platform data missing\n"); |
2eb32b0a | 2196 | ret = -ENODEV; |
aa1a15e2 | 2197 | goto clean_runtime_disable_ret; |
2eb32b0a M |
2198 | } |
2199 | data = &priv->data; | |
2200 | ||
df828598 M |
2201 | if (is_valid_ether_addr(data->slave_data[0].mac_addr)) { |
2202 | memcpy(priv->mac_addr, data->slave_data[0].mac_addr, ETH_ALEN); | |
88c99ff6 | 2203 | dev_info(&pdev->dev, "Detected MACID = %pM\n", priv->mac_addr); |
df828598 | 2204 | } else { |
7efd26d0 | 2205 | eth_random_addr(priv->mac_addr); |
88c99ff6 | 2206 | dev_info(&pdev->dev, "Random MACID = %pM\n", priv->mac_addr); |
df828598 M |
2207 | } |
2208 | ||
2209 | memcpy(ndev->dev_addr, priv->mac_addr, ETH_ALEN); | |
2210 | ||
aa1a15e2 DM |
2211 | priv->slaves = devm_kzalloc(&pdev->dev, |
2212 | sizeof(struct cpsw_slave) * data->slaves, | |
2213 | GFP_KERNEL); | |
df828598 | 2214 | if (!priv->slaves) { |
aa1a15e2 DM |
2215 | ret = -ENOMEM; |
2216 | goto clean_runtime_disable_ret; | |
df828598 M |
2217 | } |
2218 | for (i = 0; i < data->slaves; i++) | |
2219 | priv->slaves[i].slave_num = i; | |
2220 | ||
d9ba8f9e M |
2221 | priv->slaves[0].ndev = ndev; |
2222 | priv->emac_port = 0; | |
2223 | ||
aa1a15e2 | 2224 | priv->clk = devm_clk_get(&pdev->dev, "fck"); |
df828598 | 2225 | if (IS_ERR(priv->clk)) { |
aa1a15e2 | 2226 | dev_err(priv->dev, "fck is not found\n"); |
f150bd7f | 2227 | ret = -ENODEV; |
aa1a15e2 | 2228 | goto clean_runtime_disable_ret; |
df828598 | 2229 | } |
ff5b8ef2 M |
2230 | priv->coal_intvl = 0; |
2231 | priv->bus_freq_mhz = clk_get_rate(priv->clk) / 1000000; | |
df828598 | 2232 | |
aa1a15e2 DM |
2233 | ss_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
2234 | ss_regs = devm_ioremap_resource(&pdev->dev, ss_res); | |
2235 | if (IS_ERR(ss_regs)) { | |
2236 | ret = PTR_ERR(ss_regs); | |
2237 | goto clean_runtime_disable_ret; | |
df828598 | 2238 | } |
549985ee | 2239 | priv->regs = ss_regs; |
549985ee | 2240 | priv->host_port = HOST_PORT_NUM; |
df828598 | 2241 | |
f280e89a M |
2242 | /* Need to enable clocks with runtime PM api to access module |
2243 | * registers | |
2244 | */ | |
2245 | pm_runtime_get_sync(&pdev->dev); | |
2246 | priv->version = readl(&priv->regs->id_ver); | |
2247 | pm_runtime_put_sync(&pdev->dev); | |
2248 | ||
aa1a15e2 DM |
2249 | res = platform_get_resource(pdev, IORESOURCE_MEM, 1); |
2250 | priv->wr_regs = devm_ioremap_resource(&pdev->dev, res); | |
2251 | if (IS_ERR(priv->wr_regs)) { | |
2252 | ret = PTR_ERR(priv->wr_regs); | |
2253 | goto clean_runtime_disable_ret; | |
df828598 | 2254 | } |
df828598 M |
2255 | |
2256 | memset(&dma_params, 0, sizeof(dma_params)); | |
549985ee RC |
2257 | memset(&ale_params, 0, sizeof(ale_params)); |
2258 | ||
2259 | switch (priv->version) { | |
2260 | case CPSW_VERSION_1: | |
2261 | priv->host_port_regs = ss_regs + CPSW1_HOST_PORT_OFFSET; | |
d9718546 M |
2262 | priv->cpts->reg = ss_regs + CPSW1_CPTS_OFFSET; |
2263 | priv->hw_stats = ss_regs + CPSW1_HW_STATS; | |
549985ee RC |
2264 | dma_params.dmaregs = ss_regs + CPSW1_CPDMA_OFFSET; |
2265 | dma_params.txhdp = ss_regs + CPSW1_STATERAM_OFFSET; | |
2266 | ale_params.ale_regs = ss_regs + CPSW1_ALE_OFFSET; | |
2267 | slave_offset = CPSW1_SLAVE_OFFSET; | |
2268 | slave_size = CPSW1_SLAVE_SIZE; | |
2269 | sliver_offset = CPSW1_SLIVER_OFFSET; | |
2270 | dma_params.desc_mem_phys = 0; | |
2271 | break; | |
2272 | case CPSW_VERSION_2: | |
c193f365 | 2273 | case CPSW_VERSION_3: |
926489be | 2274 | case CPSW_VERSION_4: |
549985ee | 2275 | priv->host_port_regs = ss_regs + CPSW2_HOST_PORT_OFFSET; |
d9718546 M |
2276 | priv->cpts->reg = ss_regs + CPSW2_CPTS_OFFSET; |
2277 | priv->hw_stats = ss_regs + CPSW2_HW_STATS; | |
549985ee RC |
2278 | dma_params.dmaregs = ss_regs + CPSW2_CPDMA_OFFSET; |
2279 | dma_params.txhdp = ss_regs + CPSW2_STATERAM_OFFSET; | |
2280 | ale_params.ale_regs = ss_regs + CPSW2_ALE_OFFSET; | |
2281 | slave_offset = CPSW2_SLAVE_OFFSET; | |
2282 | slave_size = CPSW2_SLAVE_SIZE; | |
2283 | sliver_offset = CPSW2_SLIVER_OFFSET; | |
2284 | dma_params.desc_mem_phys = | |
aa1a15e2 | 2285 | (u32 __force) ss_res->start + CPSW2_BD_OFFSET; |
549985ee RC |
2286 | break; |
2287 | default: | |
2288 | dev_err(priv->dev, "unknown version 0x%08x\n", priv->version); | |
2289 | ret = -ENODEV; | |
aa1a15e2 | 2290 | goto clean_runtime_disable_ret; |
549985ee RC |
2291 | } |
2292 | for (i = 0; i < priv->data.slaves; i++) { | |
2293 | struct cpsw_slave *slave = &priv->slaves[i]; | |
2294 | cpsw_slave_init(slave, priv, slave_offset, sliver_offset); | |
2295 | slave_offset += slave_size; | |
2296 | sliver_offset += SLIVER_SIZE; | |
2297 | } | |
2298 | ||
df828598 | 2299 | dma_params.dev = &pdev->dev; |
549985ee RC |
2300 | dma_params.rxthresh = dma_params.dmaregs + CPDMA_RXTHRESH; |
2301 | dma_params.rxfree = dma_params.dmaregs + CPDMA_RXFREE; | |
2302 | dma_params.rxhdp = dma_params.txhdp + CPDMA_RXHDP; | |
2303 | dma_params.txcp = dma_params.txhdp + CPDMA_TXCP; | |
2304 | dma_params.rxcp = dma_params.txhdp + CPDMA_RXCP; | |
df828598 M |
2305 | |
2306 | dma_params.num_chan = data->channels; | |
2307 | dma_params.has_soft_reset = true; | |
2308 | dma_params.min_packet_size = CPSW_MIN_PACKET_SIZE; | |
2309 | dma_params.desc_mem_size = data->bd_ram_size; | |
2310 | dma_params.desc_align = 16; | |
2311 | dma_params.has_ext_regs = true; | |
549985ee | 2312 | dma_params.desc_hw_addr = dma_params.desc_mem_phys; |
df828598 M |
2313 | |
2314 | priv->dma = cpdma_ctlr_create(&dma_params); | |
2315 | if (!priv->dma) { | |
2316 | dev_err(priv->dev, "error initializing dma\n"); | |
2317 | ret = -ENOMEM; | |
aa1a15e2 | 2318 | goto clean_runtime_disable_ret; |
df828598 M |
2319 | } |
2320 | ||
2321 | priv->txch = cpdma_chan_create(priv->dma, tx_chan_num(0), | |
2322 | cpsw_tx_handler); | |
2323 | priv->rxch = cpdma_chan_create(priv->dma, rx_chan_num(0), | |
2324 | cpsw_rx_handler); | |
2325 | ||
2326 | if (WARN_ON(!priv->txch || !priv->rxch)) { | |
2327 | dev_err(priv->dev, "error initializing dma channels\n"); | |
2328 | ret = -ENOMEM; | |
2329 | goto clean_dma_ret; | |
2330 | } | |
2331 | ||
df828598 | 2332 | ale_params.dev = &ndev->dev; |
df828598 M |
2333 | ale_params.ale_ageout = ale_ageout; |
2334 | ale_params.ale_entries = data->ale_entries; | |
2335 | ale_params.ale_ports = data->slaves; | |
2336 | ||
2337 | priv->ale = cpsw_ale_create(&ale_params); | |
2338 | if (!priv->ale) { | |
2339 | dev_err(priv->dev, "error initializing ale engine\n"); | |
2340 | ret = -ENODEV; | |
2341 | goto clean_dma_ret; | |
2342 | } | |
2343 | ||
2344 | ndev->irq = platform_get_irq(pdev, 0); | |
2345 | if (ndev->irq < 0) { | |
2346 | dev_err(priv->dev, "error getting irq resource\n"); | |
2347 | ret = -ENOENT; | |
2348 | goto clean_ale_ret; | |
2349 | } | |
2350 | ||
2351 | while ((res = platform_get_resource(priv->pdev, IORESOURCE_IRQ, k))) { | |
c2b32e58 DM |
2352 | if (k >= ARRAY_SIZE(priv->irqs_table)) { |
2353 | ret = -EINVAL; | |
2354 | goto clean_ale_ret; | |
2355 | } | |
2356 | ||
2357 | ret = devm_request_irq(&pdev->dev, res->start, cpsw_interrupt, | |
2358 | 0, dev_name(&pdev->dev), priv); | |
2359 | if (ret < 0) { | |
2360 | dev_err(priv->dev, "error attaching irq (%d)\n", ret); | |
2361 | goto clean_ale_ret; | |
df828598 | 2362 | } |
c2b32e58 DM |
2363 | |
2364 | priv->irqs_table[k] = res->start; | |
df828598 M |
2365 | k++; |
2366 | } | |
2367 | ||
c2b32e58 DM |
2368 | priv->num_irqs = k; |
2369 | ||
f646968f | 2370 | ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; |
df828598 M |
2371 | |
2372 | ndev->netdev_ops = &cpsw_netdev_ops; | |
7ad24ea4 | 2373 | ndev->ethtool_ops = &cpsw_ethtool_ops; |
df828598 M |
2374 | netif_napi_add(ndev, &priv->napi, cpsw_poll, CPSW_POLL_WEIGHT); |
2375 | ||
2376 | /* register the network device */ | |
2377 | SET_NETDEV_DEV(ndev, &pdev->dev); | |
2378 | ret = register_netdev(ndev); | |
2379 | if (ret) { | |
2380 | dev_err(priv->dev, "error registering net device\n"); | |
2381 | ret = -ENODEV; | |
aa1a15e2 | 2382 | goto clean_ale_ret; |
df828598 M |
2383 | } |
2384 | ||
1a3b5056 OJ |
2385 | cpsw_notice(priv, probe, "initialized device (regs %pa, irq %d)\n", |
2386 | &ss_res->start, ndev->irq); | |
df828598 | 2387 | |
d9ba8f9e M |
2388 | if (priv->data.dual_emac) { |
2389 | ret = cpsw_probe_dual_emac(pdev, priv); | |
2390 | if (ret) { | |
2391 | cpsw_err(priv, probe, "error probe slave 2 emac interface\n"); | |
aa1a15e2 | 2392 | goto clean_ale_ret; |
d9ba8f9e M |
2393 | } |
2394 | } | |
2395 | ||
df828598 M |
2396 | return 0; |
2397 | ||
df828598 M |
2398 | clean_ale_ret: |
2399 | cpsw_ale_destroy(priv->ale); | |
2400 | clean_dma_ret: | |
2401 | cpdma_chan_destroy(priv->txch); | |
2402 | cpdma_chan_destroy(priv->rxch); | |
2403 | cpdma_ctlr_destroy(priv->dma); | |
aa1a15e2 | 2404 | clean_runtime_disable_ret: |
f150bd7f | 2405 | pm_runtime_disable(&pdev->dev); |
df828598 | 2406 | clean_ndev_ret: |
d1bd9acf | 2407 | free_netdev(priv->ndev); |
df828598 M |
2408 | return ret; |
2409 | } | |
2410 | ||
030b16a0 M |
2411 | static int cpsw_remove_child_device(struct device *dev, void *c) |
2412 | { | |
2413 | struct platform_device *pdev = to_platform_device(dev); | |
2414 | ||
2415 | of_device_unregister(pdev); | |
2416 | ||
2417 | return 0; | |
2418 | } | |
2419 | ||
663e12e6 | 2420 | static int cpsw_remove(struct platform_device *pdev) |
df828598 M |
2421 | { |
2422 | struct net_device *ndev = platform_get_drvdata(pdev); | |
2423 | struct cpsw_priv *priv = netdev_priv(ndev); | |
2424 | ||
d1bd9acf SS |
2425 | if (priv->data.dual_emac) |
2426 | unregister_netdev(cpsw_get_slave_ndev(priv, 1)); | |
2427 | unregister_netdev(ndev); | |
df828598 | 2428 | |
df828598 M |
2429 | cpsw_ale_destroy(priv->ale); |
2430 | cpdma_chan_destroy(priv->txch); | |
2431 | cpdma_chan_destroy(priv->rxch); | |
2432 | cpdma_ctlr_destroy(priv->dma); | |
f150bd7f | 2433 | pm_runtime_disable(&pdev->dev); |
030b16a0 | 2434 | device_for_each_child(&pdev->dev, NULL, cpsw_remove_child_device); |
d1bd9acf SS |
2435 | if (priv->data.dual_emac) |
2436 | free_netdev(cpsw_get_slave_ndev(priv, 1)); | |
df828598 | 2437 | free_netdev(ndev); |
df828598 M |
2438 | return 0; |
2439 | } | |
2440 | ||
2441 | static int cpsw_suspend(struct device *dev) | |
2442 | { | |
2443 | struct platform_device *pdev = to_platform_device(dev); | |
2444 | struct net_device *ndev = platform_get_drvdata(pdev); | |
b90fc27a | 2445 | struct cpsw_priv *priv = netdev_priv(ndev); |
df828598 | 2446 | |
618073e3 M |
2447 | if (priv->data.dual_emac) { |
2448 | int i; | |
1e7a2e21 | 2449 | |
618073e3 M |
2450 | for (i = 0; i < priv->data.slaves; i++) { |
2451 | if (netif_running(priv->slaves[i].ndev)) | |
2452 | cpsw_ndo_stop(priv->slaves[i].ndev); | |
2453 | soft_reset_slave(priv->slaves + i); | |
2454 | } | |
2455 | } else { | |
2456 | if (netif_running(ndev)) | |
2457 | cpsw_ndo_stop(ndev); | |
2458 | for_each_slave(priv, soft_reset_slave); | |
2459 | } | |
1e7a2e21 | 2460 | |
f150bd7f M |
2461 | pm_runtime_put_sync(&pdev->dev); |
2462 | ||
739683b4 M |
2463 | /* Select sleep pin state */ |
2464 | pinctrl_pm_select_sleep_state(&pdev->dev); | |
2465 | ||
df828598 M |
2466 | return 0; |
2467 | } | |
2468 | ||
2469 | static int cpsw_resume(struct device *dev) | |
2470 | { | |
2471 | struct platform_device *pdev = to_platform_device(dev); | |
2472 | struct net_device *ndev = platform_get_drvdata(pdev); | |
618073e3 | 2473 | struct cpsw_priv *priv = netdev_priv(ndev); |
df828598 | 2474 | |
f150bd7f | 2475 | pm_runtime_get_sync(&pdev->dev); |
739683b4 M |
2476 | |
2477 | /* Select default pin state */ | |
2478 | pinctrl_pm_select_default_state(&pdev->dev); | |
2479 | ||
618073e3 M |
2480 | if (priv->data.dual_emac) { |
2481 | int i; | |
2482 | ||
2483 | for (i = 0; i < priv->data.slaves; i++) { | |
2484 | if (netif_running(priv->slaves[i].ndev)) | |
2485 | cpsw_ndo_open(priv->slaves[i].ndev); | |
2486 | } | |
2487 | } else { | |
2488 | if (netif_running(ndev)) | |
2489 | cpsw_ndo_open(ndev); | |
2490 | } | |
df828598 M |
2491 | return 0; |
2492 | } | |
2493 | ||
2494 | static const struct dev_pm_ops cpsw_pm_ops = { | |
2495 | .suspend = cpsw_suspend, | |
2496 | .resume = cpsw_resume, | |
2497 | }; | |
2498 | ||
2eb32b0a M |
2499 | static const struct of_device_id cpsw_of_mtable[] = { |
2500 | { .compatible = "ti,cpsw", }, | |
2501 | { /* sentinel */ }, | |
2502 | }; | |
4bc21d41 | 2503 | MODULE_DEVICE_TABLE(of, cpsw_of_mtable); |
2eb32b0a | 2504 | |
df828598 M |
2505 | static struct platform_driver cpsw_driver = { |
2506 | .driver = { | |
2507 | .name = "cpsw", | |
df828598 | 2508 | .pm = &cpsw_pm_ops, |
1e5c76d4 | 2509 | .of_match_table = cpsw_of_mtable, |
df828598 M |
2510 | }, |
2511 | .probe = cpsw_probe, | |
663e12e6 | 2512 | .remove = cpsw_remove, |
df828598 M |
2513 | }; |
2514 | ||
2515 | static int __init cpsw_init(void) | |
2516 | { | |
2517 | return platform_driver_register(&cpsw_driver); | |
2518 | } | |
2519 | late_initcall(cpsw_init); | |
2520 | ||
2521 | static void __exit cpsw_exit(void) | |
2522 | { | |
2523 | platform_driver_unregister(&cpsw_driver); | |
2524 | } | |
2525 | module_exit(cpsw_exit); | |
2526 | ||
2527 | MODULE_LICENSE("GPL"); | |
2528 | MODULE_AUTHOR("Cyril Chemparathy <cyril@ti.com>"); | |
2529 | MODULE_AUTHOR("Mugunthan V N <mugunthanvnm@ti.com>"); | |
2530 | MODULE_DESCRIPTION("TI CPSW Ethernet driver"); |