2 * Driver for Marvell PPv2 network controller for Armada 375 SoC.
4 * Copyright (C) 2014 Marvell
6 * Marcin Wojtas <mw@semihalf.com>
9 * Copyright (C) 2016 Stefan Roese <sr@denx.de>
11 * This file is licensed under the terms of the GNU General Public
12 * License version 2. This program is licensed "as is" without any
13 * warranty of any kind, whether express or implied.
18 #include <dm/device-internal.h>
25 #include <linux/errno.h>
29 #include <asm/arch/cpu.h>
30 #include <asm/arch/soc.h>
31 #include <linux/compat.h>
32 #include <linux/mbus.h>
34 DECLARE_GLOBAL_DATA_PTR;
36 /* Some linux -> U-Boot compatibility stuff */
37 #define netdev_err(dev, fmt, args...) \
39 #define netdev_warn(dev, fmt, args...) \
41 #define netdev_info(dev, fmt, args...) \
43 #define netdev_dbg(dev, fmt, args...) \
46 #define ETH_ALEN 6 /* Octets in one ethernet addr */
48 #define __verify_pcpu_ptr(ptr) \
50 const void __percpu *__vpp_verify = (typeof((ptr) + 0))NULL; \
54 #define VERIFY_PERCPU_PTR(__p) \
56 __verify_pcpu_ptr(__p); \
57 (typeof(*(__p)) __kernel __force *)(__p); \
60 #define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); VERIFY_PERCPU_PTR(ptr); })
61 #define smp_processor_id() 0
62 #define num_present_cpus() 1
63 #define for_each_present_cpu(cpu) \
64 for ((cpu) = 0; (cpu) < 1; (cpu)++)
66 #define NET_SKB_PAD max(32, MVPP2_CPU_D_CACHE_LINE_SIZE)
68 #define CONFIG_NR_CPUS 1
69 #define ETH_HLEN ETHER_HDR_SIZE /* Total octets in header */
71 /* 2(HW hdr) 14(MAC hdr) 4(CRC) 32(extra for cache prefetch) */
72 #define WRAP (2 + ETH_HLEN + 4 + 32)
74 #define RX_BUFFER_SIZE (ALIGN(MTU + WRAP, ARCH_DMA_MINALIGN))
76 #define MVPP2_SMI_TIMEOUT 10000
78 /* RX Fifo Registers */
79 #define MVPP2_RX_DATA_FIFO_SIZE_REG(port) (0x00 + 4 * (port))
80 #define MVPP2_RX_ATTR_FIFO_SIZE_REG(port) (0x20 + 4 * (port))
81 #define MVPP2_RX_MIN_PKT_SIZE_REG 0x60
82 #define MVPP2_RX_FIFO_INIT_REG 0x64
84 /* RX DMA Top Registers */
85 #define MVPP2_RX_CTRL_REG(port) (0x140 + 4 * (port))
86 #define MVPP2_RX_LOW_LATENCY_PKT_SIZE(s) (((s) & 0xfff) << 16)
87 #define MVPP2_RX_USE_PSEUDO_FOR_CSUM_MASK BIT(31)
88 #define MVPP2_POOL_BUF_SIZE_REG(pool) (0x180 + 4 * (pool))
89 #define MVPP2_POOL_BUF_SIZE_OFFSET 5
90 #define MVPP2_RXQ_CONFIG_REG(rxq) (0x800 + 4 * (rxq))
91 #define MVPP2_SNOOP_PKT_SIZE_MASK 0x1ff
92 #define MVPP2_SNOOP_BUF_HDR_MASK BIT(9)
93 #define MVPP2_RXQ_POOL_SHORT_OFFS 20
94 #define MVPP2_RXQ_POOL_SHORT_MASK 0x700000
95 #define MVPP2_RXQ_POOL_LONG_OFFS 24
96 #define MVPP2_RXQ_POOL_LONG_MASK 0x7000000
97 #define MVPP2_RXQ_PACKET_OFFSET_OFFS 28
98 #define MVPP2_RXQ_PACKET_OFFSET_MASK 0x70000000
99 #define MVPP2_RXQ_DISABLE_MASK BIT(31)
101 /* Parser Registers */
102 #define MVPP2_PRS_INIT_LOOKUP_REG 0x1000
103 #define MVPP2_PRS_PORT_LU_MAX 0xf
104 #define MVPP2_PRS_PORT_LU_MASK(port) (0xff << ((port) * 4))
105 #define MVPP2_PRS_PORT_LU_VAL(port, val) ((val) << ((port) * 4))
106 #define MVPP2_PRS_INIT_OFFS_REG(port) (0x1004 + ((port) & 4))
107 #define MVPP2_PRS_INIT_OFF_MASK(port) (0x3f << (((port) % 4) * 8))
108 #define MVPP2_PRS_INIT_OFF_VAL(port, val) ((val) << (((port) % 4) * 8))
109 #define MVPP2_PRS_MAX_LOOP_REG(port) (0x100c + ((port) & 4))
110 #define MVPP2_PRS_MAX_LOOP_MASK(port) (0xff << (((port) % 4) * 8))
111 #define MVPP2_PRS_MAX_LOOP_VAL(port, val) ((val) << (((port) % 4) * 8))
112 #define MVPP2_PRS_TCAM_IDX_REG 0x1100
113 #define MVPP2_PRS_TCAM_DATA_REG(idx) (0x1104 + (idx) * 4)
114 #define MVPP2_PRS_TCAM_INV_MASK BIT(31)
115 #define MVPP2_PRS_SRAM_IDX_REG 0x1200
116 #define MVPP2_PRS_SRAM_DATA_REG(idx) (0x1204 + (idx) * 4)
117 #define MVPP2_PRS_TCAM_CTRL_REG 0x1230
118 #define MVPP2_PRS_TCAM_EN_MASK BIT(0)
120 /* Classifier Registers */
121 #define MVPP2_CLS_MODE_REG 0x1800
122 #define MVPP2_CLS_MODE_ACTIVE_MASK BIT(0)
123 #define MVPP2_CLS_PORT_WAY_REG 0x1810
124 #define MVPP2_CLS_PORT_WAY_MASK(port) (1 << (port))
125 #define MVPP2_CLS_LKP_INDEX_REG 0x1814
126 #define MVPP2_CLS_LKP_INDEX_WAY_OFFS 6
127 #define MVPP2_CLS_LKP_TBL_REG 0x1818
128 #define MVPP2_CLS_LKP_TBL_RXQ_MASK 0xff
129 #define MVPP2_CLS_LKP_TBL_LOOKUP_EN_MASK BIT(25)
130 #define MVPP2_CLS_FLOW_INDEX_REG 0x1820
131 #define MVPP2_CLS_FLOW_TBL0_REG 0x1824
132 #define MVPP2_CLS_FLOW_TBL1_REG 0x1828
133 #define MVPP2_CLS_FLOW_TBL2_REG 0x182c
134 #define MVPP2_CLS_OVERSIZE_RXQ_LOW_REG(port) (0x1980 + ((port) * 4))
135 #define MVPP2_CLS_OVERSIZE_RXQ_LOW_BITS 3
136 #define MVPP2_CLS_OVERSIZE_RXQ_LOW_MASK 0x7
137 #define MVPP2_CLS_SWFWD_P2HQ_REG(port) (0x19b0 + ((port) * 4))
138 #define MVPP2_CLS_SWFWD_PCTRL_REG 0x19d0
139 #define MVPP2_CLS_SWFWD_PCTRL_MASK(port) (1 << (port))
141 /* Descriptor Manager Top Registers */
142 #define MVPP2_RXQ_NUM_REG 0x2040
143 #define MVPP2_RXQ_DESC_ADDR_REG 0x2044
144 #define MVPP2_RXQ_DESC_SIZE_REG 0x2048
145 #define MVPP2_RXQ_DESC_SIZE_MASK 0x3ff0
146 #define MVPP2_RXQ_STATUS_UPDATE_REG(rxq) (0x3000 + 4 * (rxq))
147 #define MVPP2_RXQ_NUM_PROCESSED_OFFSET 0
148 #define MVPP2_RXQ_NUM_NEW_OFFSET 16
149 #define MVPP2_RXQ_STATUS_REG(rxq) (0x3400 + 4 * (rxq))
150 #define MVPP2_RXQ_OCCUPIED_MASK 0x3fff
151 #define MVPP2_RXQ_NON_OCCUPIED_OFFSET 16
152 #define MVPP2_RXQ_NON_OCCUPIED_MASK 0x3fff0000
153 #define MVPP2_RXQ_THRESH_REG 0x204c
154 #define MVPP2_OCCUPIED_THRESH_OFFSET 0
155 #define MVPP2_OCCUPIED_THRESH_MASK 0x3fff
156 #define MVPP2_RXQ_INDEX_REG 0x2050
157 #define MVPP2_TXQ_NUM_REG 0x2080
158 #define MVPP2_TXQ_DESC_ADDR_REG 0x2084
159 #define MVPP2_TXQ_DESC_SIZE_REG 0x2088
160 #define MVPP2_TXQ_DESC_SIZE_MASK 0x3ff0
161 #define MVPP2_AGGR_TXQ_UPDATE_REG 0x2090
162 #define MVPP2_TXQ_THRESH_REG 0x2094
163 #define MVPP2_TRANSMITTED_THRESH_OFFSET 16
164 #define MVPP2_TRANSMITTED_THRESH_MASK 0x3fff0000
165 #define MVPP2_TXQ_INDEX_REG 0x2098
166 #define MVPP2_TXQ_PREF_BUF_REG 0x209c
167 #define MVPP2_PREF_BUF_PTR(desc) ((desc) & 0xfff)
168 #define MVPP2_PREF_BUF_SIZE_4 (BIT(12) | BIT(13))
169 #define MVPP2_PREF_BUF_SIZE_16 (BIT(12) | BIT(14))
170 #define MVPP2_PREF_BUF_THRESH(val) ((val) << 17)
171 #define MVPP2_TXQ_DRAIN_EN_MASK BIT(31)
172 #define MVPP2_TXQ_PENDING_REG 0x20a0
173 #define MVPP2_TXQ_PENDING_MASK 0x3fff
174 #define MVPP2_TXQ_INT_STATUS_REG 0x20a4
175 #define MVPP2_TXQ_SENT_REG(txq) (0x3c00 + 4 * (txq))
176 #define MVPP2_TRANSMITTED_COUNT_OFFSET 16
177 #define MVPP2_TRANSMITTED_COUNT_MASK 0x3fff0000
178 #define MVPP2_TXQ_RSVD_REQ_REG 0x20b0
179 #define MVPP2_TXQ_RSVD_REQ_Q_OFFSET 16
180 #define MVPP2_TXQ_RSVD_RSLT_REG 0x20b4
181 #define MVPP2_TXQ_RSVD_RSLT_MASK 0x3fff
182 #define MVPP2_TXQ_RSVD_CLR_REG 0x20b8
183 #define MVPP2_TXQ_RSVD_CLR_OFFSET 16
184 #define MVPP2_AGGR_TXQ_DESC_ADDR_REG(cpu) (0x2100 + 4 * (cpu))
185 #define MVPP2_AGGR_TXQ_DESC_SIZE_REG(cpu) (0x2140 + 4 * (cpu))
186 #define MVPP2_AGGR_TXQ_DESC_SIZE_MASK 0x3ff0
187 #define MVPP2_AGGR_TXQ_STATUS_REG(cpu) (0x2180 + 4 * (cpu))
188 #define MVPP2_AGGR_TXQ_PENDING_MASK 0x3fff
189 #define MVPP2_AGGR_TXQ_INDEX_REG(cpu) (0x21c0 + 4 * (cpu))
191 /* MBUS bridge registers */
192 #define MVPP2_WIN_BASE(w) (0x4000 + ((w) << 2))
193 #define MVPP2_WIN_SIZE(w) (0x4020 + ((w) << 2))
194 #define MVPP2_WIN_REMAP(w) (0x4040 + ((w) << 2))
195 #define MVPP2_BASE_ADDR_ENABLE 0x4060
197 /* Interrupt Cause and Mask registers */
198 #define MVPP2_ISR_RX_THRESHOLD_REG(rxq) (0x5200 + 4 * (rxq))
199 #define MVPP2_ISR_RXQ_GROUP_REG(rxq) (0x5400 + 4 * (rxq))
200 #define MVPP2_ISR_ENABLE_REG(port) (0x5420 + 4 * (port))
201 #define MVPP2_ISR_ENABLE_INTERRUPT(mask) ((mask) & 0xffff)
202 #define MVPP2_ISR_DISABLE_INTERRUPT(mask) (((mask) << 16) & 0xffff0000)
203 #define MVPP2_ISR_RX_TX_CAUSE_REG(port) (0x5480 + 4 * (port))
204 #define MVPP2_CAUSE_RXQ_OCCUP_DESC_ALL_MASK 0xffff
205 #define MVPP2_CAUSE_TXQ_OCCUP_DESC_ALL_MASK 0xff0000
206 #define MVPP2_CAUSE_RX_FIFO_OVERRUN_MASK BIT(24)
207 #define MVPP2_CAUSE_FCS_ERR_MASK BIT(25)
208 #define MVPP2_CAUSE_TX_FIFO_UNDERRUN_MASK BIT(26)
209 #define MVPP2_CAUSE_TX_EXCEPTION_SUM_MASK BIT(29)
210 #define MVPP2_CAUSE_RX_EXCEPTION_SUM_MASK BIT(30)
211 #define MVPP2_CAUSE_MISC_SUM_MASK BIT(31)
212 #define MVPP2_ISR_RX_TX_MASK_REG(port) (0x54a0 + 4 * (port))
213 #define MVPP2_ISR_PON_RX_TX_MASK_REG 0x54bc
214 #define MVPP2_PON_CAUSE_RXQ_OCCUP_DESC_ALL_MASK 0xffff
215 #define MVPP2_PON_CAUSE_TXP_OCCUP_DESC_ALL_MASK 0x3fc00000
216 #define MVPP2_PON_CAUSE_MISC_SUM_MASK BIT(31)
217 #define MVPP2_ISR_MISC_CAUSE_REG 0x55b0
219 /* Buffer Manager registers */
220 #define MVPP2_BM_POOL_BASE_REG(pool) (0x6000 + ((pool) * 4))
221 #define MVPP2_BM_POOL_BASE_ADDR_MASK 0xfffff80
222 #define MVPP2_BM_POOL_SIZE_REG(pool) (0x6040 + ((pool) * 4))
223 #define MVPP2_BM_POOL_SIZE_MASK 0xfff0
224 #define MVPP2_BM_POOL_READ_PTR_REG(pool) (0x6080 + ((pool) * 4))
225 #define MVPP2_BM_POOL_GET_READ_PTR_MASK 0xfff0
226 #define MVPP2_BM_POOL_PTRS_NUM_REG(pool) (0x60c0 + ((pool) * 4))
227 #define MVPP2_BM_POOL_PTRS_NUM_MASK 0xfff0
228 #define MVPP2_BM_BPPI_READ_PTR_REG(pool) (0x6100 + ((pool) * 4))
229 #define MVPP2_BM_BPPI_PTRS_NUM_REG(pool) (0x6140 + ((pool) * 4))
230 #define MVPP2_BM_BPPI_PTR_NUM_MASK 0x7ff
231 #define MVPP2_BM_BPPI_PREFETCH_FULL_MASK BIT(16)
232 #define MVPP2_BM_POOL_CTRL_REG(pool) (0x6200 + ((pool) * 4))
233 #define MVPP2_BM_START_MASK BIT(0)
234 #define MVPP2_BM_STOP_MASK BIT(1)
235 #define MVPP2_BM_STATE_MASK BIT(4)
236 #define MVPP2_BM_LOW_THRESH_OFFS 8
237 #define MVPP2_BM_LOW_THRESH_MASK 0x7f00
238 #define MVPP2_BM_LOW_THRESH_VALUE(val) ((val) << \
239 MVPP2_BM_LOW_THRESH_OFFS)
240 #define MVPP2_BM_HIGH_THRESH_OFFS 16
241 #define MVPP2_BM_HIGH_THRESH_MASK 0x7f0000
242 #define MVPP2_BM_HIGH_THRESH_VALUE(val) ((val) << \
243 MVPP2_BM_HIGH_THRESH_OFFS)
244 #define MVPP2_BM_INTR_CAUSE_REG(pool) (0x6240 + ((pool) * 4))
245 #define MVPP2_BM_RELEASED_DELAY_MASK BIT(0)
246 #define MVPP2_BM_ALLOC_FAILED_MASK BIT(1)
247 #define MVPP2_BM_BPPE_EMPTY_MASK BIT(2)
248 #define MVPP2_BM_BPPE_FULL_MASK BIT(3)
249 #define MVPP2_BM_AVAILABLE_BP_LOW_MASK BIT(4)
250 #define MVPP2_BM_INTR_MASK_REG(pool) (0x6280 + ((pool) * 4))
251 #define MVPP2_BM_PHY_ALLOC_REG(pool) (0x6400 + ((pool) * 4))
252 #define MVPP2_BM_PHY_ALLOC_GRNTD_MASK BIT(0)
253 #define MVPP2_BM_VIRT_ALLOC_REG 0x6440
254 #define MVPP2_BM_PHY_RLS_REG(pool) (0x6480 + ((pool) * 4))
255 #define MVPP2_BM_PHY_RLS_MC_BUFF_MASK BIT(0)
256 #define MVPP2_BM_PHY_RLS_PRIO_EN_MASK BIT(1)
257 #define MVPP2_BM_PHY_RLS_GRNTD_MASK BIT(2)
258 #define MVPP2_BM_VIRT_RLS_REG 0x64c0
259 #define MVPP2_BM_MC_RLS_REG 0x64c4
260 #define MVPP2_BM_MC_ID_MASK 0xfff
261 #define MVPP2_BM_FORCE_RELEASE_MASK BIT(12)
263 /* TX Scheduler registers */
264 #define MVPP2_TXP_SCHED_PORT_INDEX_REG 0x8000
265 #define MVPP2_TXP_SCHED_Q_CMD_REG 0x8004
266 #define MVPP2_TXP_SCHED_ENQ_MASK 0xff
267 #define MVPP2_TXP_SCHED_DISQ_OFFSET 8
268 #define MVPP2_TXP_SCHED_CMD_1_REG 0x8010
269 #define MVPP2_TXP_SCHED_PERIOD_REG 0x8018
270 #define MVPP2_TXP_SCHED_MTU_REG 0x801c
271 #define MVPP2_TXP_MTU_MAX 0x7FFFF
272 #define MVPP2_TXP_SCHED_REFILL_REG 0x8020
273 #define MVPP2_TXP_REFILL_TOKENS_ALL_MASK 0x7ffff
274 #define MVPP2_TXP_REFILL_PERIOD_ALL_MASK 0x3ff00000
275 #define MVPP2_TXP_REFILL_PERIOD_MASK(v) ((v) << 20)
276 #define MVPP2_TXP_SCHED_TOKEN_SIZE_REG 0x8024
277 #define MVPP2_TXP_TOKEN_SIZE_MAX 0xffffffff
278 #define MVPP2_TXQ_SCHED_REFILL_REG(q) (0x8040 + ((q) << 2))
279 #define MVPP2_TXQ_REFILL_TOKENS_ALL_MASK 0x7ffff
280 #define MVPP2_TXQ_REFILL_PERIOD_ALL_MASK 0x3ff00000
281 #define MVPP2_TXQ_REFILL_PERIOD_MASK(v) ((v) << 20)
282 #define MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(q) (0x8060 + ((q) << 2))
283 #define MVPP2_TXQ_TOKEN_SIZE_MAX 0x7fffffff
284 #define MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(q) (0x8080 + ((q) << 2))
285 #define MVPP2_TXQ_TOKEN_CNTR_MAX 0xffffffff
287 /* TX general registers */
288 #define MVPP2_TX_SNOOP_REG 0x8800
289 #define MVPP2_TX_PORT_FLUSH_REG 0x8810
290 #define MVPP2_TX_PORT_FLUSH_MASK(port) (1 << (port))
293 #define MVPP2_SRC_ADDR_MIDDLE 0x24
294 #define MVPP2_SRC_ADDR_HIGH 0x28
295 #define MVPP2_PHY_AN_CFG0_REG 0x34
296 #define MVPP2_PHY_AN_STOP_SMI0_MASK BIT(7)
297 #define MVPP2_MNG_EXTENDED_GLOBAL_CTRL_REG 0x305c
298 #define MVPP2_EXT_GLOBAL_CTRL_DEFAULT 0x27
300 /* Per-port registers */
301 #define MVPP2_GMAC_CTRL_0_REG 0x0
302 #define MVPP2_GMAC_PORT_EN_MASK BIT(0)
303 #define MVPP2_GMAC_MAX_RX_SIZE_OFFS 2
304 #define MVPP2_GMAC_MAX_RX_SIZE_MASK 0x7ffc
305 #define MVPP2_GMAC_MIB_CNTR_EN_MASK BIT(15)
306 #define MVPP2_GMAC_CTRL_1_REG 0x4
307 #define MVPP2_GMAC_PERIODIC_XON_EN_MASK BIT(1)
308 #define MVPP2_GMAC_GMII_LB_EN_MASK BIT(5)
309 #define MVPP2_GMAC_PCS_LB_EN_BIT 6
310 #define MVPP2_GMAC_PCS_LB_EN_MASK BIT(6)
311 #define MVPP2_GMAC_SA_LOW_OFFS 7
312 #define MVPP2_GMAC_CTRL_2_REG 0x8
313 #define MVPP2_GMAC_INBAND_AN_MASK BIT(0)
314 #define MVPP2_GMAC_PCS_ENABLE_MASK BIT(3)
315 #define MVPP2_GMAC_PORT_RGMII_MASK BIT(4)
316 #define MVPP2_GMAC_PORT_RESET_MASK BIT(6)
317 #define MVPP2_GMAC_AUTONEG_CONFIG 0xc
318 #define MVPP2_GMAC_FORCE_LINK_DOWN BIT(0)
319 #define MVPP2_GMAC_FORCE_LINK_PASS BIT(1)
320 #define MVPP2_GMAC_CONFIG_MII_SPEED BIT(5)
321 #define MVPP2_GMAC_CONFIG_GMII_SPEED BIT(6)
322 #define MVPP2_GMAC_AN_SPEED_EN BIT(7)
323 #define MVPP2_GMAC_FC_ADV_EN BIT(9)
324 #define MVPP2_GMAC_CONFIG_FULL_DUPLEX BIT(12)
325 #define MVPP2_GMAC_AN_DUPLEX_EN BIT(13)
326 #define MVPP2_GMAC_PORT_FIFO_CFG_1_REG 0x1c
327 #define MVPP2_GMAC_TX_FIFO_MIN_TH_OFFS 6
328 #define MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK 0x1fc0
329 #define MVPP2_GMAC_TX_FIFO_MIN_TH_MASK(v) (((v) << 6) & \
330 MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK)
332 #define MVPP2_CAUSE_TXQ_SENT_DESC_ALL_MASK 0xff
334 /* Descriptor ring Macros */
335 #define MVPP2_QUEUE_NEXT_DESC(q, index) \
336 (((index) < (q)->last_desc) ? ((index) + 1) : 0)
338 /* SMI: 0xc0054 -> offset 0x54 to lms_base */
339 #define MVPP2_SMI 0x0054
340 #define MVPP2_PHY_REG_MASK 0x1f
341 /* SMI register fields */
342 #define MVPP2_SMI_DATA_OFFS 0 /* Data */
343 #define MVPP2_SMI_DATA_MASK (0xffff << MVPP2_SMI_DATA_OFFS)
344 #define MVPP2_SMI_DEV_ADDR_OFFS 16 /* PHY device address */
345 #define MVPP2_SMI_REG_ADDR_OFFS 21 /* PHY device reg addr*/
346 #define MVPP2_SMI_OPCODE_OFFS 26 /* Write/Read opcode */
347 #define MVPP2_SMI_OPCODE_READ (1 << MVPP2_SMI_OPCODE_OFFS)
348 #define MVPP2_SMI_READ_VALID (1 << 27) /* Read Valid */
349 #define MVPP2_SMI_BUSY (1 << 28) /* Busy */
351 #define MVPP2_PHY_ADDR_MASK 0x1f
352 #define MVPP2_PHY_REG_MASK 0x1f
354 /* Various constants */
357 #define MVPP2_TXDONE_COAL_PKTS_THRESH 15
358 #define MVPP2_TXDONE_HRTIMER_PERIOD_NS 1000000UL
359 #define MVPP2_RX_COAL_PKTS 32
360 #define MVPP2_RX_COAL_USEC 100
362 /* The two bytes Marvell header. Either contains a special value used
363 * by Marvell switches when a specific hardware mode is enabled (not
364 * supported by this driver) or is filled automatically by zeroes on
365 * the RX side. Those two bytes being at the front of the Ethernet
366 * header, they allow to have the IP header aligned on a 4 bytes
367 * boundary automatically: the hardware skips those two bytes on its
370 #define MVPP2_MH_SIZE 2
371 #define MVPP2_ETH_TYPE_LEN 2
372 #define MVPP2_PPPOE_HDR_SIZE 8
373 #define MVPP2_VLAN_TAG_LEN 4
375 /* Lbtd 802.3 type */
376 #define MVPP2_IP_LBDT_TYPE 0xfffa
378 #define MVPP2_CPU_D_CACHE_LINE_SIZE 32
379 #define MVPP2_TX_CSUM_MAX_SIZE 9800
381 /* Timeout constants */
382 #define MVPP2_TX_DISABLE_TIMEOUT_MSEC 1000
383 #define MVPP2_TX_PENDING_TIMEOUT_MSEC 1000
385 #define MVPP2_TX_MTU_MAX 0x7ffff
387 /* Maximum number of T-CONTs of PON port */
388 #define MVPP2_MAX_TCONT 16
390 /* Maximum number of supported ports */
391 #define MVPP2_MAX_PORTS 4
393 /* Maximum number of TXQs used by single port */
394 #define MVPP2_MAX_TXQ 8
396 /* Maximum number of RXQs used by single port */
397 #define MVPP2_MAX_RXQ 8
399 /* Default number of TXQs in use */
400 #define MVPP2_DEFAULT_TXQ 1
402 /* Dfault number of RXQs in use */
403 #define MVPP2_DEFAULT_RXQ 1
404 #define CONFIG_MV_ETH_RXQ 8 /* increment by 8 */
406 /* Total number of RXQs available to all ports */
407 #define MVPP2_RXQ_TOTAL_NUM (MVPP2_MAX_PORTS * MVPP2_MAX_RXQ)
409 /* Max number of Rx descriptors */
410 #define MVPP2_MAX_RXD 16
412 /* Max number of Tx descriptors */
413 #define MVPP2_MAX_TXD 16
415 /* Amount of Tx descriptors that can be reserved at once by CPU */
416 #define MVPP2_CPU_DESC_CHUNK 64
418 /* Max number of Tx descriptors in each aggregated queue */
419 #define MVPP2_AGGR_TXQ_SIZE 256
421 /* Descriptor aligned size */
422 #define MVPP2_DESC_ALIGNED_SIZE 32
424 /* Descriptor alignment mask */
425 #define MVPP2_TX_DESC_ALIGN (MVPP2_DESC_ALIGNED_SIZE - 1)
427 /* RX FIFO constants */
428 #define MVPP2_RX_FIFO_PORT_DATA_SIZE 0x2000
429 #define MVPP2_RX_FIFO_PORT_ATTR_SIZE 0x80
430 #define MVPP2_RX_FIFO_PORT_MIN_PKT 0x80
432 /* RX buffer constants */
433 #define MVPP2_SKB_SHINFO_SIZE \
436 #define MVPP2_RX_PKT_SIZE(mtu) \
437 ALIGN((mtu) + MVPP2_MH_SIZE + MVPP2_VLAN_TAG_LEN + \
438 ETH_HLEN + ETH_FCS_LEN, MVPP2_CPU_D_CACHE_LINE_SIZE)
440 #define MVPP2_RX_BUF_SIZE(pkt_size) ((pkt_size) + NET_SKB_PAD)
441 #define MVPP2_RX_TOTAL_SIZE(buf_size) ((buf_size) + MVPP2_SKB_SHINFO_SIZE)
442 #define MVPP2_RX_MAX_PKT_SIZE(total_size) \
443 ((total_size) - NET_SKB_PAD - MVPP2_SKB_SHINFO_SIZE)
445 #define MVPP2_BIT_TO_BYTE(bit) ((bit) / 8)
447 /* IPv6 max L3 address size */
448 #define MVPP2_MAX_L3_ADDR_SIZE 16
451 #define MVPP2_F_LOOPBACK BIT(0)
453 /* Marvell tag types */
454 enum mvpp2_tag_type {
455 MVPP2_TAG_TYPE_NONE = 0,
456 MVPP2_TAG_TYPE_MH = 1,
457 MVPP2_TAG_TYPE_DSA = 2,
458 MVPP2_TAG_TYPE_EDSA = 3,
459 MVPP2_TAG_TYPE_VLAN = 4,
460 MVPP2_TAG_TYPE_LAST = 5
463 /* Parser constants */
464 #define MVPP2_PRS_TCAM_SRAM_SIZE 256
465 #define MVPP2_PRS_TCAM_WORDS 6
466 #define MVPP2_PRS_SRAM_WORDS 4
467 #define MVPP2_PRS_FLOW_ID_SIZE 64
468 #define MVPP2_PRS_FLOW_ID_MASK 0x3f
469 #define MVPP2_PRS_TCAM_ENTRY_INVALID 1
470 #define MVPP2_PRS_TCAM_DSA_TAGGED_BIT BIT(5)
471 #define MVPP2_PRS_IPV4_HEAD 0x40
472 #define MVPP2_PRS_IPV4_HEAD_MASK 0xf0
473 #define MVPP2_PRS_IPV4_MC 0xe0
474 #define MVPP2_PRS_IPV4_MC_MASK 0xf0
475 #define MVPP2_PRS_IPV4_BC_MASK 0xff
476 #define MVPP2_PRS_IPV4_IHL 0x5
477 #define MVPP2_PRS_IPV4_IHL_MASK 0xf
478 #define MVPP2_PRS_IPV6_MC 0xff
479 #define MVPP2_PRS_IPV6_MC_MASK 0xff
480 #define MVPP2_PRS_IPV6_HOP_MASK 0xff
481 #define MVPP2_PRS_TCAM_PROTO_MASK 0xff
482 #define MVPP2_PRS_TCAM_PROTO_MASK_L 0x3f
483 #define MVPP2_PRS_DBL_VLANS_MAX 100
486 * - lookup ID - 4 bits
488 * - additional information - 1 byte
489 * - header data - 8 bytes
490 * The fields are represented by MVPP2_PRS_TCAM_DATA_REG(5)->(0).
492 #define MVPP2_PRS_AI_BITS 8
493 #define MVPP2_PRS_PORT_MASK 0xff
494 #define MVPP2_PRS_LU_MASK 0xf
495 #define MVPP2_PRS_TCAM_DATA_BYTE(offs) \
496 (((offs) - ((offs) % 2)) * 2 + ((offs) % 2))
497 #define MVPP2_PRS_TCAM_DATA_BYTE_EN(offs) \
498 (((offs) * 2) - ((offs) % 2) + 2)
499 #define MVPP2_PRS_TCAM_AI_BYTE 16
500 #define MVPP2_PRS_TCAM_PORT_BYTE 17
501 #define MVPP2_PRS_TCAM_LU_BYTE 20
502 #define MVPP2_PRS_TCAM_EN_OFFS(offs) ((offs) + 2)
503 #define MVPP2_PRS_TCAM_INV_WORD 5
504 /* Tcam entries ID */
505 #define MVPP2_PE_DROP_ALL 0
506 #define MVPP2_PE_FIRST_FREE_TID 1
507 #define MVPP2_PE_LAST_FREE_TID (MVPP2_PRS_TCAM_SRAM_SIZE - 31)
508 #define MVPP2_PE_IP6_EXT_PROTO_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 30)
509 #define MVPP2_PE_MAC_MC_IP6 (MVPP2_PRS_TCAM_SRAM_SIZE - 29)
510 #define MVPP2_PE_IP6_ADDR_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 28)
511 #define MVPP2_PE_IP4_ADDR_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 27)
512 #define MVPP2_PE_LAST_DEFAULT_FLOW (MVPP2_PRS_TCAM_SRAM_SIZE - 26)
513 #define MVPP2_PE_FIRST_DEFAULT_FLOW (MVPP2_PRS_TCAM_SRAM_SIZE - 19)
514 #define MVPP2_PE_EDSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 18)
515 #define MVPP2_PE_EDSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 17)
516 #define MVPP2_PE_DSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 16)
517 #define MVPP2_PE_DSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 15)
518 #define MVPP2_PE_ETYPE_EDSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 14)
519 #define MVPP2_PE_ETYPE_EDSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 13)
520 #define MVPP2_PE_ETYPE_DSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 12)
521 #define MVPP2_PE_ETYPE_DSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 11)
522 #define MVPP2_PE_MH_DEFAULT (MVPP2_PRS_TCAM_SRAM_SIZE - 10)
523 #define MVPP2_PE_DSA_DEFAULT (MVPP2_PRS_TCAM_SRAM_SIZE - 9)
524 #define MVPP2_PE_IP6_PROTO_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 8)
525 #define MVPP2_PE_IP4_PROTO_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 7)
526 #define MVPP2_PE_ETH_TYPE_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 6)
527 #define MVPP2_PE_VLAN_DBL (MVPP2_PRS_TCAM_SRAM_SIZE - 5)
528 #define MVPP2_PE_VLAN_NONE (MVPP2_PRS_TCAM_SRAM_SIZE - 4)
529 #define MVPP2_PE_MAC_MC_ALL (MVPP2_PRS_TCAM_SRAM_SIZE - 3)
530 #define MVPP2_PE_MAC_PROMISCUOUS (MVPP2_PRS_TCAM_SRAM_SIZE - 2)
531 #define MVPP2_PE_MAC_NON_PROMISCUOUS (MVPP2_PRS_TCAM_SRAM_SIZE - 1)
534 * The fields are represented by MVPP2_PRS_TCAM_DATA_REG(3)->(0).
536 #define MVPP2_PRS_SRAM_RI_OFFS 0
537 #define MVPP2_PRS_SRAM_RI_WORD 0
538 #define MVPP2_PRS_SRAM_RI_CTRL_OFFS 32
539 #define MVPP2_PRS_SRAM_RI_CTRL_WORD 1
540 #define MVPP2_PRS_SRAM_RI_CTRL_BITS 32
541 #define MVPP2_PRS_SRAM_SHIFT_OFFS 64
542 #define MVPP2_PRS_SRAM_SHIFT_SIGN_BIT 72
543 #define MVPP2_PRS_SRAM_UDF_OFFS 73
544 #define MVPP2_PRS_SRAM_UDF_BITS 8
545 #define MVPP2_PRS_SRAM_UDF_MASK 0xff
546 #define MVPP2_PRS_SRAM_UDF_SIGN_BIT 81
547 #define MVPP2_PRS_SRAM_UDF_TYPE_OFFS 82
548 #define MVPP2_PRS_SRAM_UDF_TYPE_MASK 0x7
549 #define MVPP2_PRS_SRAM_UDF_TYPE_L3 1
550 #define MVPP2_PRS_SRAM_UDF_TYPE_L4 4
551 #define MVPP2_PRS_SRAM_OP_SEL_SHIFT_OFFS 85
552 #define MVPP2_PRS_SRAM_OP_SEL_SHIFT_MASK 0x3
553 #define MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD 1
554 #define MVPP2_PRS_SRAM_OP_SEL_SHIFT_IP4_ADD 2
555 #define MVPP2_PRS_SRAM_OP_SEL_SHIFT_IP6_ADD 3
556 #define MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS 87
557 #define MVPP2_PRS_SRAM_OP_SEL_UDF_BITS 2
558 #define MVPP2_PRS_SRAM_OP_SEL_UDF_MASK 0x3
559 #define MVPP2_PRS_SRAM_OP_SEL_UDF_ADD 0
560 #define MVPP2_PRS_SRAM_OP_SEL_UDF_IP4_ADD 2
561 #define MVPP2_PRS_SRAM_OP_SEL_UDF_IP6_ADD 3
562 #define MVPP2_PRS_SRAM_OP_SEL_BASE_OFFS 89
563 #define MVPP2_PRS_SRAM_AI_OFFS 90
564 #define MVPP2_PRS_SRAM_AI_CTRL_OFFS 98
565 #define MVPP2_PRS_SRAM_AI_CTRL_BITS 8
566 #define MVPP2_PRS_SRAM_AI_MASK 0xff
567 #define MVPP2_PRS_SRAM_NEXT_LU_OFFS 106
568 #define MVPP2_PRS_SRAM_NEXT_LU_MASK 0xf
569 #define MVPP2_PRS_SRAM_LU_DONE_BIT 110
570 #define MVPP2_PRS_SRAM_LU_GEN_BIT 111
572 /* Sram result info bits assignment */
573 #define MVPP2_PRS_RI_MAC_ME_MASK 0x1
574 #define MVPP2_PRS_RI_DSA_MASK 0x2
575 #define MVPP2_PRS_RI_VLAN_MASK (BIT(2) | BIT(3))
576 #define MVPP2_PRS_RI_VLAN_NONE 0x0
577 #define MVPP2_PRS_RI_VLAN_SINGLE BIT(2)
578 #define MVPP2_PRS_RI_VLAN_DOUBLE BIT(3)
579 #define MVPP2_PRS_RI_VLAN_TRIPLE (BIT(2) | BIT(3))
580 #define MVPP2_PRS_RI_CPU_CODE_MASK 0x70
581 #define MVPP2_PRS_RI_CPU_CODE_RX_SPEC BIT(4)
582 #define MVPP2_PRS_RI_L2_CAST_MASK (BIT(9) | BIT(10))
583 #define MVPP2_PRS_RI_L2_UCAST 0x0
584 #define MVPP2_PRS_RI_L2_MCAST BIT(9)
585 #define MVPP2_PRS_RI_L2_BCAST BIT(10)
586 #define MVPP2_PRS_RI_PPPOE_MASK 0x800
587 #define MVPP2_PRS_RI_L3_PROTO_MASK (BIT(12) | BIT(13) | BIT(14))
588 #define MVPP2_PRS_RI_L3_UN 0x0
589 #define MVPP2_PRS_RI_L3_IP4 BIT(12)
590 #define MVPP2_PRS_RI_L3_IP4_OPT BIT(13)
591 #define MVPP2_PRS_RI_L3_IP4_OTHER (BIT(12) | BIT(13))
592 #define MVPP2_PRS_RI_L3_IP6 BIT(14)
593 #define MVPP2_PRS_RI_L3_IP6_EXT (BIT(12) | BIT(14))
594 #define MVPP2_PRS_RI_L3_ARP (BIT(13) | BIT(14))
595 #define MVPP2_PRS_RI_L3_ADDR_MASK (BIT(15) | BIT(16))
596 #define MVPP2_PRS_RI_L3_UCAST 0x0
597 #define MVPP2_PRS_RI_L3_MCAST BIT(15)
598 #define MVPP2_PRS_RI_L3_BCAST (BIT(15) | BIT(16))
599 #define MVPP2_PRS_RI_IP_FRAG_MASK 0x20000
600 #define MVPP2_PRS_RI_UDF3_MASK 0x300000
601 #define MVPP2_PRS_RI_UDF3_RX_SPECIAL BIT(21)
602 #define MVPP2_PRS_RI_L4_PROTO_MASK 0x1c00000
603 #define MVPP2_PRS_RI_L4_TCP BIT(22)
604 #define MVPP2_PRS_RI_L4_UDP BIT(23)
605 #define MVPP2_PRS_RI_L4_OTHER (BIT(22) | BIT(23))
606 #define MVPP2_PRS_RI_UDF7_MASK 0x60000000
607 #define MVPP2_PRS_RI_UDF7_IP6_LITE BIT(29)
608 #define MVPP2_PRS_RI_DROP_MASK 0x80000000
610 /* Sram additional info bits assignment */
611 #define MVPP2_PRS_IPV4_DIP_AI_BIT BIT(0)
612 #define MVPP2_PRS_IPV6_NO_EXT_AI_BIT BIT(0)
613 #define MVPP2_PRS_IPV6_EXT_AI_BIT BIT(1)
614 #define MVPP2_PRS_IPV6_EXT_AH_AI_BIT BIT(2)
615 #define MVPP2_PRS_IPV6_EXT_AH_LEN_AI_BIT BIT(3)
616 #define MVPP2_PRS_IPV6_EXT_AH_L4_AI_BIT BIT(4)
617 #define MVPP2_PRS_SINGLE_VLAN_AI 0
618 #define MVPP2_PRS_DBL_VLAN_AI_BIT BIT(7)
621 #define MVPP2_PRS_TAGGED true
622 #define MVPP2_PRS_UNTAGGED false
623 #define MVPP2_PRS_EDSA true
624 #define MVPP2_PRS_DSA false
626 /* MAC entries, shadow udf */
628 MVPP2_PRS_UDF_MAC_DEF,
629 MVPP2_PRS_UDF_MAC_RANGE,
630 MVPP2_PRS_UDF_L2_DEF,
631 MVPP2_PRS_UDF_L2_DEF_COPY,
632 MVPP2_PRS_UDF_L2_USER,
636 enum mvpp2_prs_lookup {
650 enum mvpp2_prs_l3_cast {
651 MVPP2_PRS_L3_UNI_CAST,
652 MVPP2_PRS_L3_MULTI_CAST,
653 MVPP2_PRS_L3_BROAD_CAST
656 /* Classifier constants */
657 #define MVPP2_CLS_FLOWS_TBL_SIZE 512
658 #define MVPP2_CLS_FLOWS_TBL_DATA_WORDS 3
659 #define MVPP2_CLS_LKP_TBL_SIZE 64
662 #define MVPP2_BM_POOLS_NUM 1
663 #define MVPP2_BM_LONG_BUF_NUM 16
664 #define MVPP2_BM_SHORT_BUF_NUM 16
665 #define MVPP2_BM_POOL_SIZE_MAX (16*1024 - MVPP2_BM_POOL_PTR_ALIGN/4)
666 #define MVPP2_BM_POOL_PTR_ALIGN 128
667 #define MVPP2_BM_SWF_LONG_POOL(port) 0
669 /* BM cookie (32 bits) definition */
670 #define MVPP2_BM_COOKIE_POOL_OFFS 8
671 #define MVPP2_BM_COOKIE_CPU_OFFS 24
673 /* BM short pool packet size
674 * These value assure that for SWF the total number
675 * of bytes allocated for each buffer will be 512
677 #define MVPP2_BM_SHORT_PKT_SIZE MVPP2_RX_MAX_PKT_SIZE(512)
687 /* Shared Packet Processor resources */
689 /* Shared registers' base addresses */
691 void __iomem *lms_base;
693 /* List of pointers to port structures */
694 struct mvpp2_port **port_list;
696 /* Aggregated TXQs */
697 struct mvpp2_tx_queue *aggr_txqs;
700 struct mvpp2_bm_pool *bm_pools;
702 /* PRS shadow table */
703 struct mvpp2_prs_shadow *prs_shadow;
704 /* PRS auxiliary table for double vlan entries control */
705 bool *prs_double_vlans;
713 struct mvpp2_pcpu_stats {
727 /* Per-port registers' base address */
730 struct mvpp2_rx_queue **rxqs;
731 struct mvpp2_tx_queue **txqs;
735 u32 pending_cause_rx;
737 /* Per-CPU port control */
738 struct mvpp2_port_pcpu __percpu *pcpu;
745 struct mvpp2_pcpu_stats __percpu *stats;
747 struct phy_device *phy_dev;
748 phy_interface_t phy_interface;
756 struct mvpp2_bm_pool *pool_long;
757 struct mvpp2_bm_pool *pool_short;
759 /* Index of first port's physical RXQ */
762 u8 dev_addr[ETH_ALEN];
765 /* The mvpp2_tx_desc and mvpp2_rx_desc structures describe the
766 * layout of the transmit and reception DMA descriptors, and their
767 * layout is therefore defined by the hardware design
770 #define MVPP2_TXD_L3_OFF_SHIFT 0
771 #define MVPP2_TXD_IP_HLEN_SHIFT 8
772 #define MVPP2_TXD_L4_CSUM_FRAG BIT(13)
773 #define MVPP2_TXD_L4_CSUM_NOT BIT(14)
774 #define MVPP2_TXD_IP_CSUM_DISABLE BIT(15)
775 #define MVPP2_TXD_PADDING_DISABLE BIT(23)
776 #define MVPP2_TXD_L4_UDP BIT(24)
777 #define MVPP2_TXD_L3_IP6 BIT(26)
778 #define MVPP2_TXD_L_DESC BIT(28)
779 #define MVPP2_TXD_F_DESC BIT(29)
781 #define MVPP2_RXD_ERR_SUMMARY BIT(15)
782 #define MVPP2_RXD_ERR_CODE_MASK (BIT(13) | BIT(14))
783 #define MVPP2_RXD_ERR_CRC 0x0
784 #define MVPP2_RXD_ERR_OVERRUN BIT(13)
785 #define MVPP2_RXD_ERR_RESOURCE (BIT(13) | BIT(14))
786 #define MVPP2_RXD_BM_POOL_ID_OFFS 16
787 #define MVPP2_RXD_BM_POOL_ID_MASK (BIT(16) | BIT(17) | BIT(18))
788 #define MVPP2_RXD_HWF_SYNC BIT(21)
789 #define MVPP2_RXD_L4_CSUM_OK BIT(22)
790 #define MVPP2_RXD_IP4_HEADER_ERR BIT(24)
791 #define MVPP2_RXD_L4_TCP BIT(25)
792 #define MVPP2_RXD_L4_UDP BIT(26)
793 #define MVPP2_RXD_L3_IP4 BIT(28)
794 #define MVPP2_RXD_L3_IP6 BIT(30)
795 #define MVPP2_RXD_BUF_HDR BIT(31)
797 struct mvpp2_tx_desc {
798 u32 command; /* Options used by HW for packet transmitting.*/
799 u8 packet_offset; /* the offset from the buffer beginning */
800 u8 phys_txq; /* destination queue ID */
801 u16 data_size; /* data size of transmitted packet in bytes */
802 u32 buf_dma_addr; /* physical addr of transmitted buffer */
803 u32 buf_cookie; /* cookie for access to TX buffer in tx path */
804 u32 reserved1[3]; /* hw_cmd (for future use, BM, PON, PNC) */
805 u32 reserved2; /* reserved (for future use) */
808 struct mvpp2_rx_desc {
809 u32 status; /* info about received packet */
810 u16 reserved1; /* parser_info (for future use, PnC) */
811 u16 data_size; /* size of received packet in bytes */
812 u32 buf_dma_addr; /* physical address of the buffer */
813 u32 buf_cookie; /* cookie for access to RX buffer in rx path */
814 u16 reserved2; /* gem_port_id (for future use, PON) */
815 u16 reserved3; /* csum_l4 (for future use, PnC) */
816 u8 reserved4; /* bm_qset (for future use, BM) */
818 u16 reserved6; /* classify_info (for future use, PnC) */
819 u32 reserved7; /* flow_id (for future use, PnC) */
823 /* Per-CPU Tx queue control */
824 struct mvpp2_txq_pcpu {
827 /* Number of Tx DMA descriptors in the descriptor ring */
830 /* Number of currently used Tx DMA descriptor in the
835 /* Number of Tx DMA descriptors reserved for each CPU */
838 /* Index of last TX DMA descriptor that was inserted */
841 /* Index of the TX DMA descriptor to be cleaned up */
845 struct mvpp2_tx_queue {
846 /* Physical number of this Tx queue */
849 /* Logical number of this Tx queue */
852 /* Number of Tx DMA descriptors in the descriptor ring */
855 /* Number of currently used Tx DMA descriptor in the descriptor ring */
858 /* Per-CPU control of physical Tx queues */
859 struct mvpp2_txq_pcpu __percpu *pcpu;
863 /* Virtual address of thex Tx DMA descriptors array */
864 struct mvpp2_tx_desc *descs;
866 /* DMA address of the Tx DMA descriptors array */
867 dma_addr_t descs_dma;
869 /* Index of the last Tx DMA descriptor */
872 /* Index of the next Tx DMA descriptor to process */
873 int next_desc_to_proc;
876 struct mvpp2_rx_queue {
877 /* RX queue number, in the range 0-31 for physical RXQs */
880 /* Num of rx descriptors in the rx descriptor ring */
886 /* Virtual address of the RX DMA descriptors array */
887 struct mvpp2_rx_desc *descs;
889 /* DMA address of the RX DMA descriptors array */
890 dma_addr_t descs_dma;
892 /* Index of the last RX DMA descriptor */
895 /* Index of the next RX DMA descriptor to process */
896 int next_desc_to_proc;
898 /* ID of port to which physical RXQ is mapped */
901 /* Port's logic RXQ number to which physical RXQ is mapped */
905 union mvpp2_prs_tcam_entry {
906 u32 word[MVPP2_PRS_TCAM_WORDS];
907 u8 byte[MVPP2_PRS_TCAM_WORDS * 4];
910 union mvpp2_prs_sram_entry {
911 u32 word[MVPP2_PRS_SRAM_WORDS];
912 u8 byte[MVPP2_PRS_SRAM_WORDS * 4];
915 struct mvpp2_prs_entry {
917 union mvpp2_prs_tcam_entry tcam;
918 union mvpp2_prs_sram_entry sram;
921 struct mvpp2_prs_shadow {
928 /* User defined offset */
936 struct mvpp2_cls_flow_entry {
938 u32 data[MVPP2_CLS_FLOWS_TBL_DATA_WORDS];
941 struct mvpp2_cls_lookup_entry {
947 struct mvpp2_bm_pool {
948 /* Pool number in the range 0-7 */
950 enum mvpp2_bm_type type;
952 /* Buffer Pointers Pool External (BPPE) size */
954 /* Number of buffers for this pool */
956 /* Pool buffer size */
961 /* BPPE virtual base address */
962 unsigned long *virt_addr;
963 /* BPPE DMA base address */
966 /* Ports using BM pool */
969 /* Occupied buffers indicator */
973 /* Static declaractions */
975 /* Number of RXQs used by single port */
976 static int rxq_number = MVPP2_DEFAULT_RXQ;
977 /* Number of TXQs used by single port */
978 static int txq_number = MVPP2_DEFAULT_TXQ;
980 #define MVPP2_DRIVER_NAME "mvpp2"
981 #define MVPP2_DRIVER_VERSION "1.0"
984 * U-Boot internal data, mostly uncached buffers for descriptors and data
986 struct buffer_location {
987 struct mvpp2_tx_desc *aggr_tx_descs;
988 struct mvpp2_tx_desc *tx_descs;
989 struct mvpp2_rx_desc *rx_descs;
990 unsigned long *bm_pool[MVPP2_BM_POOLS_NUM];
991 unsigned long *rx_buffer[MVPP2_BM_LONG_BUF_NUM];
996 * All 4 interfaces use the same global buffer, since only one interface
997 * can be enabled at once
999 static struct buffer_location buffer_loc;
1002 * Page table entries are set to 1MB, or multiples of 1MB
1003 * (not < 1MB). driver uses less bd's so use 1MB bdspace.
1005 #define BD_SPACE (1 << 20)
1007 /* Utility/helper methods */
1009 static void mvpp2_write(struct mvpp2 *priv, u32 offset, u32 data)
1011 writel(data, priv->base + offset);
1014 static u32 mvpp2_read(struct mvpp2 *priv, u32 offset)
1016 return readl(priv->base + offset);
1019 static void mvpp2_txq_inc_get(struct mvpp2_txq_pcpu *txq_pcpu)
1021 txq_pcpu->txq_get_index++;
1022 if (txq_pcpu->txq_get_index == txq_pcpu->size)
1023 txq_pcpu->txq_get_index = 0;
1026 /* Get number of physical egress port */
1027 static inline int mvpp2_egress_port(struct mvpp2_port *port)
1029 return MVPP2_MAX_TCONT + port->id;
1032 /* Get number of physical TXQ */
1033 static inline int mvpp2_txq_phys(int port, int txq)
1035 return (MVPP2_MAX_TCONT + port) * MVPP2_MAX_TXQ + txq;
1038 /* Parser configuration routines */
1040 /* Update parser tcam and sram hw entries */
1041 static int mvpp2_prs_hw_write(struct mvpp2 *priv, struct mvpp2_prs_entry *pe)
1045 if (pe->index > MVPP2_PRS_TCAM_SRAM_SIZE - 1)
1048 /* Clear entry invalidation bit */
1049 pe->tcam.word[MVPP2_PRS_TCAM_INV_WORD] &= ~MVPP2_PRS_TCAM_INV_MASK;
1051 /* Write tcam index - indirect access */
1052 mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, pe->index);
1053 for (i = 0; i < MVPP2_PRS_TCAM_WORDS; i++)
1054 mvpp2_write(priv, MVPP2_PRS_TCAM_DATA_REG(i), pe->tcam.word[i]);
1056 /* Write sram index - indirect access */
1057 mvpp2_write(priv, MVPP2_PRS_SRAM_IDX_REG, pe->index);
1058 for (i = 0; i < MVPP2_PRS_SRAM_WORDS; i++)
1059 mvpp2_write(priv, MVPP2_PRS_SRAM_DATA_REG(i), pe->sram.word[i]);
1064 /* Read tcam entry from hw */
1065 static int mvpp2_prs_hw_read(struct mvpp2 *priv, struct mvpp2_prs_entry *pe)
1069 if (pe->index > MVPP2_PRS_TCAM_SRAM_SIZE - 1)
1072 /* Write tcam index - indirect access */
1073 mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, pe->index);
1075 pe->tcam.word[MVPP2_PRS_TCAM_INV_WORD] = mvpp2_read(priv,
1076 MVPP2_PRS_TCAM_DATA_REG(MVPP2_PRS_TCAM_INV_WORD));
1077 if (pe->tcam.word[MVPP2_PRS_TCAM_INV_WORD] & MVPP2_PRS_TCAM_INV_MASK)
1078 return MVPP2_PRS_TCAM_ENTRY_INVALID;
1080 for (i = 0; i < MVPP2_PRS_TCAM_WORDS; i++)
1081 pe->tcam.word[i] = mvpp2_read(priv, MVPP2_PRS_TCAM_DATA_REG(i));
1083 /* Write sram index - indirect access */
1084 mvpp2_write(priv, MVPP2_PRS_SRAM_IDX_REG, pe->index);
1085 for (i = 0; i < MVPP2_PRS_SRAM_WORDS; i++)
1086 pe->sram.word[i] = mvpp2_read(priv, MVPP2_PRS_SRAM_DATA_REG(i));
1091 /* Invalidate tcam hw entry */
1092 static void mvpp2_prs_hw_inv(struct mvpp2 *priv, int index)
1094 /* Write index - indirect access */
1095 mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, index);
1096 mvpp2_write(priv, MVPP2_PRS_TCAM_DATA_REG(MVPP2_PRS_TCAM_INV_WORD),
1097 MVPP2_PRS_TCAM_INV_MASK);
1100 /* Enable shadow table entry and set its lookup ID */
1101 static void mvpp2_prs_shadow_set(struct mvpp2 *priv, int index, int lu)
1103 priv->prs_shadow[index].valid = true;
1104 priv->prs_shadow[index].lu = lu;
1107 /* Update ri fields in shadow table entry */
1108 static void mvpp2_prs_shadow_ri_set(struct mvpp2 *priv, int index,
1109 unsigned int ri, unsigned int ri_mask)
1111 priv->prs_shadow[index].ri_mask = ri_mask;
1112 priv->prs_shadow[index].ri = ri;
1115 /* Update lookup field in tcam sw entry */
1116 static void mvpp2_prs_tcam_lu_set(struct mvpp2_prs_entry *pe, unsigned int lu)
1118 int enable_off = MVPP2_PRS_TCAM_EN_OFFS(MVPP2_PRS_TCAM_LU_BYTE);
1120 pe->tcam.byte[MVPP2_PRS_TCAM_LU_BYTE] = lu;
1121 pe->tcam.byte[enable_off] = MVPP2_PRS_LU_MASK;
1124 /* Update mask for single port in tcam sw entry */
1125 static void mvpp2_prs_tcam_port_set(struct mvpp2_prs_entry *pe,
1126 unsigned int port, bool add)
1128 int enable_off = MVPP2_PRS_TCAM_EN_OFFS(MVPP2_PRS_TCAM_PORT_BYTE);
1131 pe->tcam.byte[enable_off] &= ~(1 << port);
1133 pe->tcam.byte[enable_off] |= 1 << port;
1136 /* Update port map in tcam sw entry */
1137 static void mvpp2_prs_tcam_port_map_set(struct mvpp2_prs_entry *pe,
1140 unsigned char port_mask = MVPP2_PRS_PORT_MASK;
1141 int enable_off = MVPP2_PRS_TCAM_EN_OFFS(MVPP2_PRS_TCAM_PORT_BYTE);
1143 pe->tcam.byte[MVPP2_PRS_TCAM_PORT_BYTE] = 0;
1144 pe->tcam.byte[enable_off] &= ~port_mask;
1145 pe->tcam.byte[enable_off] |= ~ports & MVPP2_PRS_PORT_MASK;
1148 /* Obtain port map from tcam sw entry */
1149 static unsigned int mvpp2_prs_tcam_port_map_get(struct mvpp2_prs_entry *pe)
1151 int enable_off = MVPP2_PRS_TCAM_EN_OFFS(MVPP2_PRS_TCAM_PORT_BYTE);
1153 return ~(pe->tcam.byte[enable_off]) & MVPP2_PRS_PORT_MASK;
1156 /* Set byte of data and its enable bits in tcam sw entry */
1157 static void mvpp2_prs_tcam_data_byte_set(struct mvpp2_prs_entry *pe,
1158 unsigned int offs, unsigned char byte,
1159 unsigned char enable)
1161 pe->tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE(offs)] = byte;
1162 pe->tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE_EN(offs)] = enable;
1165 /* Get byte of data and its enable bits from tcam sw entry */
1166 static void mvpp2_prs_tcam_data_byte_get(struct mvpp2_prs_entry *pe,
1167 unsigned int offs, unsigned char *byte,
1168 unsigned char *enable)
1170 *byte = pe->tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE(offs)];
1171 *enable = pe->tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE_EN(offs)];
1174 /* Set ethertype in tcam sw entry */
1175 static void mvpp2_prs_match_etype(struct mvpp2_prs_entry *pe, int offset,
1176 unsigned short ethertype)
1178 mvpp2_prs_tcam_data_byte_set(pe, offset + 0, ethertype >> 8, 0xff);
1179 mvpp2_prs_tcam_data_byte_set(pe, offset + 1, ethertype & 0xff, 0xff);
1182 /* Set bits in sram sw entry */
1183 static void mvpp2_prs_sram_bits_set(struct mvpp2_prs_entry *pe, int bit_num,
1186 pe->sram.byte[MVPP2_BIT_TO_BYTE(bit_num)] |= (val << (bit_num % 8));
1189 /* Clear bits in sram sw entry */
1190 static void mvpp2_prs_sram_bits_clear(struct mvpp2_prs_entry *pe, int bit_num,
1193 pe->sram.byte[MVPP2_BIT_TO_BYTE(bit_num)] &= ~(val << (bit_num % 8));
1196 /* Update ri bits in sram sw entry */
1197 static void mvpp2_prs_sram_ri_update(struct mvpp2_prs_entry *pe,
1198 unsigned int bits, unsigned int mask)
1202 for (i = 0; i < MVPP2_PRS_SRAM_RI_CTRL_BITS; i++) {
1203 int ri_off = MVPP2_PRS_SRAM_RI_OFFS;
1205 if (!(mask & BIT(i)))
1209 mvpp2_prs_sram_bits_set(pe, ri_off + i, 1);
1211 mvpp2_prs_sram_bits_clear(pe, ri_off + i, 1);
1213 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_RI_CTRL_OFFS + i, 1);
1217 /* Update ai bits in sram sw entry */
1218 static void mvpp2_prs_sram_ai_update(struct mvpp2_prs_entry *pe,
1219 unsigned int bits, unsigned int mask)
1222 int ai_off = MVPP2_PRS_SRAM_AI_OFFS;
1224 for (i = 0; i < MVPP2_PRS_SRAM_AI_CTRL_BITS; i++) {
1226 if (!(mask & BIT(i)))
1230 mvpp2_prs_sram_bits_set(pe, ai_off + i, 1);
1232 mvpp2_prs_sram_bits_clear(pe, ai_off + i, 1);
1234 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_AI_CTRL_OFFS + i, 1);
1238 /* Read ai bits from sram sw entry */
1239 static int mvpp2_prs_sram_ai_get(struct mvpp2_prs_entry *pe)
1242 int ai_off = MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_AI_OFFS);
1243 int ai_en_off = ai_off + 1;
1244 int ai_shift = MVPP2_PRS_SRAM_AI_OFFS % 8;
1246 bits = (pe->sram.byte[ai_off] >> ai_shift) |
1247 (pe->sram.byte[ai_en_off] << (8 - ai_shift));
1252 /* In sram sw entry set lookup ID field of the tcam key to be used in the next
1255 static void mvpp2_prs_sram_next_lu_set(struct mvpp2_prs_entry *pe,
1258 int sram_next_off = MVPP2_PRS_SRAM_NEXT_LU_OFFS;
1260 mvpp2_prs_sram_bits_clear(pe, sram_next_off,
1261 MVPP2_PRS_SRAM_NEXT_LU_MASK);
1262 mvpp2_prs_sram_bits_set(pe, sram_next_off, lu);
1265 /* In the sram sw entry set sign and value of the next lookup offset
1266 * and the offset value generated to the classifier
1268 static void mvpp2_prs_sram_shift_set(struct mvpp2_prs_entry *pe, int shift,
1273 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_SHIFT_SIGN_BIT, 1);
1276 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_SHIFT_SIGN_BIT, 1);
1280 pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_SHIFT_OFFS)] =
1281 (unsigned char)shift;
1283 /* Reset and set operation */
1284 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_SHIFT_OFFS,
1285 MVPP2_PRS_SRAM_OP_SEL_SHIFT_MASK);
1286 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_OP_SEL_SHIFT_OFFS, op);
1288 /* Set base offset as current */
1289 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_BASE_OFFS, 1);
1292 /* In the sram sw entry set sign and value of the user defined offset
1293 * generated to the classifier
1295 static void mvpp2_prs_sram_offset_set(struct mvpp2_prs_entry *pe,
1296 unsigned int type, int offset,
1301 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_UDF_SIGN_BIT, 1);
1302 offset = 0 - offset;
1304 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_UDF_SIGN_BIT, 1);
1308 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_UDF_OFFS,
1309 MVPP2_PRS_SRAM_UDF_MASK);
1310 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_UDF_OFFS, offset);
1311 pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_UDF_OFFS +
1312 MVPP2_PRS_SRAM_UDF_BITS)] &=
1313 ~(MVPP2_PRS_SRAM_UDF_MASK >> (8 - (MVPP2_PRS_SRAM_UDF_OFFS % 8)));
1314 pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_UDF_OFFS +
1315 MVPP2_PRS_SRAM_UDF_BITS)] |=
1316 (offset >> (8 - (MVPP2_PRS_SRAM_UDF_OFFS % 8)));
1318 /* Set offset type */
1319 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_UDF_TYPE_OFFS,
1320 MVPP2_PRS_SRAM_UDF_TYPE_MASK);
1321 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_UDF_TYPE_OFFS, type);
1323 /* Set offset operation */
1324 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS,
1325 MVPP2_PRS_SRAM_OP_SEL_UDF_MASK);
1326 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS, op);
1328 pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS +
1329 MVPP2_PRS_SRAM_OP_SEL_UDF_BITS)] &=
1330 ~(MVPP2_PRS_SRAM_OP_SEL_UDF_MASK >>
1331 (8 - (MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS % 8)));
1333 pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS +
1334 MVPP2_PRS_SRAM_OP_SEL_UDF_BITS)] |=
1335 (op >> (8 - (MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS % 8)));
1337 /* Set base offset as current */
1338 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_BASE_OFFS, 1);
1341 /* Find parser flow entry */
1342 static struct mvpp2_prs_entry *mvpp2_prs_flow_find(struct mvpp2 *priv, int flow)
1344 struct mvpp2_prs_entry *pe;
1347 pe = kzalloc(sizeof(*pe), GFP_KERNEL);
1350 mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_FLOWS);
1352 /* Go through the all entires with MVPP2_PRS_LU_FLOWS */
1353 for (tid = MVPP2_PRS_TCAM_SRAM_SIZE - 1; tid >= 0; tid--) {
1356 if (!priv->prs_shadow[tid].valid ||
1357 priv->prs_shadow[tid].lu != MVPP2_PRS_LU_FLOWS)
1361 mvpp2_prs_hw_read(priv, pe);
1362 bits = mvpp2_prs_sram_ai_get(pe);
1364 /* Sram store classification lookup ID in AI bits [5:0] */
1365 if ((bits & MVPP2_PRS_FLOW_ID_MASK) == flow)
1373 /* Return first free tcam index, seeking from start to end */
1374 static int mvpp2_prs_tcam_first_free(struct mvpp2 *priv, unsigned char start,
1382 if (end >= MVPP2_PRS_TCAM_SRAM_SIZE)
1383 end = MVPP2_PRS_TCAM_SRAM_SIZE - 1;
1385 for (tid = start; tid <= end; tid++) {
1386 if (!priv->prs_shadow[tid].valid)
1393 /* Enable/disable dropping all mac da's */
1394 static void mvpp2_prs_mac_drop_all_set(struct mvpp2 *priv, int port, bool add)
1396 struct mvpp2_prs_entry pe;
1398 if (priv->prs_shadow[MVPP2_PE_DROP_ALL].valid) {
1399 /* Entry exist - update port only */
1400 pe.index = MVPP2_PE_DROP_ALL;
1401 mvpp2_prs_hw_read(priv, &pe);
1403 /* Entry doesn't exist - create new */
1404 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1405 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC);
1406 pe.index = MVPP2_PE_DROP_ALL;
1408 /* Non-promiscuous mode for all ports - DROP unknown packets */
1409 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_DROP_MASK,
1410 MVPP2_PRS_RI_DROP_MASK);
1412 mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
1413 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
1415 /* Update shadow table */
1416 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC);
1418 /* Mask all ports */
1419 mvpp2_prs_tcam_port_map_set(&pe, 0);
1422 /* Update port mask */
1423 mvpp2_prs_tcam_port_set(&pe, port, add);
1425 mvpp2_prs_hw_write(priv, &pe);
1428 /* Set port to promiscuous mode */
1429 static void mvpp2_prs_mac_promisc_set(struct mvpp2 *priv, int port, bool add)
1431 struct mvpp2_prs_entry pe;
1433 /* Promiscuous mode - Accept unknown packets */
1435 if (priv->prs_shadow[MVPP2_PE_MAC_PROMISCUOUS].valid) {
1436 /* Entry exist - update port only */
1437 pe.index = MVPP2_PE_MAC_PROMISCUOUS;
1438 mvpp2_prs_hw_read(priv, &pe);
1440 /* Entry doesn't exist - create new */
1441 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1442 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC);
1443 pe.index = MVPP2_PE_MAC_PROMISCUOUS;
1445 /* Continue - set next lookup */
1446 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_DSA);
1448 /* Set result info bits */
1449 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L2_UCAST,
1450 MVPP2_PRS_RI_L2_CAST_MASK);
1452 /* Shift to ethertype */
1453 mvpp2_prs_sram_shift_set(&pe, 2 * ETH_ALEN,
1454 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
1456 /* Mask all ports */
1457 mvpp2_prs_tcam_port_map_set(&pe, 0);
1459 /* Update shadow table */
1460 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC);
1463 /* Update port mask */
1464 mvpp2_prs_tcam_port_set(&pe, port, add);
1466 mvpp2_prs_hw_write(priv, &pe);
1469 /* Accept multicast */
1470 static void mvpp2_prs_mac_multi_set(struct mvpp2 *priv, int port, int index,
1473 struct mvpp2_prs_entry pe;
1474 unsigned char da_mc;
1476 /* Ethernet multicast address first byte is
1477 * 0x01 for IPv4 and 0x33 for IPv6
1479 da_mc = (index == MVPP2_PE_MAC_MC_ALL) ? 0x01 : 0x33;
1481 if (priv->prs_shadow[index].valid) {
1482 /* Entry exist - update port only */
1484 mvpp2_prs_hw_read(priv, &pe);
1486 /* Entry doesn't exist - create new */
1487 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1488 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC);
1491 /* Continue - set next lookup */
1492 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_DSA);
1494 /* Set result info bits */
1495 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L2_MCAST,
1496 MVPP2_PRS_RI_L2_CAST_MASK);
1498 /* Update tcam entry data first byte */
1499 mvpp2_prs_tcam_data_byte_set(&pe, 0, da_mc, 0xff);
1501 /* Shift to ethertype */
1502 mvpp2_prs_sram_shift_set(&pe, 2 * ETH_ALEN,
1503 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
1505 /* Mask all ports */
1506 mvpp2_prs_tcam_port_map_set(&pe, 0);
1508 /* Update shadow table */
1509 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC);
1512 /* Update port mask */
1513 mvpp2_prs_tcam_port_set(&pe, port, add);
1515 mvpp2_prs_hw_write(priv, &pe);
1518 /* Parser per-port initialization */
1519 static void mvpp2_prs_hw_port_init(struct mvpp2 *priv, int port, int lu_first,
1520 int lu_max, int offset)
1525 val = mvpp2_read(priv, MVPP2_PRS_INIT_LOOKUP_REG);
1526 val &= ~MVPP2_PRS_PORT_LU_MASK(port);
1527 val |= MVPP2_PRS_PORT_LU_VAL(port, lu_first);
1528 mvpp2_write(priv, MVPP2_PRS_INIT_LOOKUP_REG, val);
1530 /* Set maximum number of loops for packet received from port */
1531 val = mvpp2_read(priv, MVPP2_PRS_MAX_LOOP_REG(port));
1532 val &= ~MVPP2_PRS_MAX_LOOP_MASK(port);
1533 val |= MVPP2_PRS_MAX_LOOP_VAL(port, lu_max);
1534 mvpp2_write(priv, MVPP2_PRS_MAX_LOOP_REG(port), val);
1536 /* Set initial offset for packet header extraction for the first
1539 val = mvpp2_read(priv, MVPP2_PRS_INIT_OFFS_REG(port));
1540 val &= ~MVPP2_PRS_INIT_OFF_MASK(port);
1541 val |= MVPP2_PRS_INIT_OFF_VAL(port, offset);
1542 mvpp2_write(priv, MVPP2_PRS_INIT_OFFS_REG(port), val);
1545 /* Default flow entries initialization for all ports */
1546 static void mvpp2_prs_def_flow_init(struct mvpp2 *priv)
1548 struct mvpp2_prs_entry pe;
1551 for (port = 0; port < MVPP2_MAX_PORTS; port++) {
1552 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1553 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
1554 pe.index = MVPP2_PE_FIRST_DEFAULT_FLOW - port;
1556 /* Mask all ports */
1557 mvpp2_prs_tcam_port_map_set(&pe, 0);
1560 mvpp2_prs_sram_ai_update(&pe, port, MVPP2_PRS_FLOW_ID_MASK);
1561 mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_DONE_BIT, 1);
1563 /* Update shadow table and hw entry */
1564 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_FLOWS);
1565 mvpp2_prs_hw_write(priv, &pe);
1569 /* Set default entry for Marvell Header field */
1570 static void mvpp2_prs_mh_init(struct mvpp2 *priv)
1572 struct mvpp2_prs_entry pe;
1574 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1576 pe.index = MVPP2_PE_MH_DEFAULT;
1577 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MH);
1578 mvpp2_prs_sram_shift_set(&pe, MVPP2_MH_SIZE,
1579 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
1580 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_MAC);
1582 /* Unmask all ports */
1583 mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
1585 /* Update shadow table and hw entry */
1586 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MH);
1587 mvpp2_prs_hw_write(priv, &pe);
1590 /* Set default entires (place holder) for promiscuous, non-promiscuous and
1591 * multicast MAC addresses
1593 static void mvpp2_prs_mac_init(struct mvpp2 *priv)
1595 struct mvpp2_prs_entry pe;
1597 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1599 /* Non-promiscuous mode for all ports - DROP unknown packets */
1600 pe.index = MVPP2_PE_MAC_NON_PROMISCUOUS;
1601 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC);
1603 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_DROP_MASK,
1604 MVPP2_PRS_RI_DROP_MASK);
1605 mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
1606 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
1608 /* Unmask all ports */
1609 mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
1611 /* Update shadow table and hw entry */
1612 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC);
1613 mvpp2_prs_hw_write(priv, &pe);
1615 /* place holders only - no ports */
1616 mvpp2_prs_mac_drop_all_set(priv, 0, false);
1617 mvpp2_prs_mac_promisc_set(priv, 0, false);
1618 mvpp2_prs_mac_multi_set(priv, MVPP2_PE_MAC_MC_ALL, 0, false);
1619 mvpp2_prs_mac_multi_set(priv, MVPP2_PE_MAC_MC_IP6, 0, false);
1622 /* Match basic ethertypes */
1623 static int mvpp2_prs_etype_init(struct mvpp2 *priv)
1625 struct mvpp2_prs_entry pe;
1628 /* Ethertype: PPPoE */
1629 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
1630 MVPP2_PE_LAST_FREE_TID);
1634 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1635 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
1638 mvpp2_prs_match_etype(&pe, 0, PROT_PPP_SES);
1640 mvpp2_prs_sram_shift_set(&pe, MVPP2_PPPOE_HDR_SIZE,
1641 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
1642 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_PPPOE);
1643 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_PPPOE_MASK,
1644 MVPP2_PRS_RI_PPPOE_MASK);
1646 /* Update shadow table and hw entry */
1647 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
1648 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
1649 priv->prs_shadow[pe.index].finish = false;
1650 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_PPPOE_MASK,
1651 MVPP2_PRS_RI_PPPOE_MASK);
1652 mvpp2_prs_hw_write(priv, &pe);
1654 /* Ethertype: ARP */
1655 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
1656 MVPP2_PE_LAST_FREE_TID);
1660 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1661 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
1664 mvpp2_prs_match_etype(&pe, 0, PROT_ARP);
1666 /* Generate flow in the next iteration*/
1667 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
1668 mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
1669 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_ARP,
1670 MVPP2_PRS_RI_L3_PROTO_MASK);
1672 mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
1674 MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
1676 /* Update shadow table and hw entry */
1677 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
1678 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
1679 priv->prs_shadow[pe.index].finish = true;
1680 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_ARP,
1681 MVPP2_PRS_RI_L3_PROTO_MASK);
1682 mvpp2_prs_hw_write(priv, &pe);
1684 /* Ethertype: LBTD */
1685 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
1686 MVPP2_PE_LAST_FREE_TID);
1690 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1691 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
1694 mvpp2_prs_match_etype(&pe, 0, MVPP2_IP_LBDT_TYPE);
1696 /* Generate flow in the next iteration*/
1697 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
1698 mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
1699 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_CPU_CODE_RX_SPEC |
1700 MVPP2_PRS_RI_UDF3_RX_SPECIAL,
1701 MVPP2_PRS_RI_CPU_CODE_MASK |
1702 MVPP2_PRS_RI_UDF3_MASK);
1704 mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
1706 MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
1708 /* Update shadow table and hw entry */
1709 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
1710 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
1711 priv->prs_shadow[pe.index].finish = true;
1712 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_CPU_CODE_RX_SPEC |
1713 MVPP2_PRS_RI_UDF3_RX_SPECIAL,
1714 MVPP2_PRS_RI_CPU_CODE_MASK |
1715 MVPP2_PRS_RI_UDF3_MASK);
1716 mvpp2_prs_hw_write(priv, &pe);
1718 /* Ethertype: IPv4 without options */
1719 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
1720 MVPP2_PE_LAST_FREE_TID);
1724 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1725 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
1728 mvpp2_prs_match_etype(&pe, 0, PROT_IP);
1729 mvpp2_prs_tcam_data_byte_set(&pe, MVPP2_ETH_TYPE_LEN,
1730 MVPP2_PRS_IPV4_HEAD | MVPP2_PRS_IPV4_IHL,
1731 MVPP2_PRS_IPV4_HEAD_MASK |
1732 MVPP2_PRS_IPV4_IHL_MASK);
1734 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP4);
1735 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP4,
1736 MVPP2_PRS_RI_L3_PROTO_MASK);
1737 /* Skip eth_type + 4 bytes of IP header */
1738 mvpp2_prs_sram_shift_set(&pe, MVPP2_ETH_TYPE_LEN + 4,
1739 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
1741 mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
1743 MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
1745 /* Update shadow table and hw entry */
1746 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
1747 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
1748 priv->prs_shadow[pe.index].finish = false;
1749 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_IP4,
1750 MVPP2_PRS_RI_L3_PROTO_MASK);
1751 mvpp2_prs_hw_write(priv, &pe);
1753 /* Ethertype: IPv4 with options */
1754 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
1755 MVPP2_PE_LAST_FREE_TID);
1761 /* Clear tcam data before updating */
1762 pe.tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE(MVPP2_ETH_TYPE_LEN)] = 0x0;
1763 pe.tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE_EN(MVPP2_ETH_TYPE_LEN)] = 0x0;
1765 mvpp2_prs_tcam_data_byte_set(&pe, MVPP2_ETH_TYPE_LEN,
1766 MVPP2_PRS_IPV4_HEAD,
1767 MVPP2_PRS_IPV4_HEAD_MASK);
1769 /* Clear ri before updating */
1770 pe.sram.word[MVPP2_PRS_SRAM_RI_WORD] = 0x0;
1771 pe.sram.word[MVPP2_PRS_SRAM_RI_CTRL_WORD] = 0x0;
1772 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP4_OPT,
1773 MVPP2_PRS_RI_L3_PROTO_MASK);
1775 /* Update shadow table and hw entry */
1776 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
1777 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
1778 priv->prs_shadow[pe.index].finish = false;
1779 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_IP4_OPT,
1780 MVPP2_PRS_RI_L3_PROTO_MASK);
1781 mvpp2_prs_hw_write(priv, &pe);
1783 /* Ethertype: IPv6 without options */
1784 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
1785 MVPP2_PE_LAST_FREE_TID);
1789 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1790 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
1793 mvpp2_prs_match_etype(&pe, 0, PROT_IPV6);
1795 /* Skip DIP of IPV6 header */
1796 mvpp2_prs_sram_shift_set(&pe, MVPP2_ETH_TYPE_LEN + 8 +
1797 MVPP2_MAX_L3_ADDR_SIZE,
1798 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
1799 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP6);
1800 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP6,
1801 MVPP2_PRS_RI_L3_PROTO_MASK);
1803 mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
1805 MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
1807 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
1808 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
1809 priv->prs_shadow[pe.index].finish = false;
1810 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_IP6,
1811 MVPP2_PRS_RI_L3_PROTO_MASK);
1812 mvpp2_prs_hw_write(priv, &pe);
1814 /* Default entry for MVPP2_PRS_LU_L2 - Unknown ethtype */
1815 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1816 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
1817 pe.index = MVPP2_PE_ETH_TYPE_UN;
1819 /* Unmask all ports */
1820 mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
1822 /* Generate flow in the next iteration*/
1823 mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
1824 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
1825 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_UN,
1826 MVPP2_PRS_RI_L3_PROTO_MASK);
1827 /* Set L3 offset even it's unknown L3 */
1828 mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
1830 MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
1832 /* Update shadow table and hw entry */
1833 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
1834 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
1835 priv->prs_shadow[pe.index].finish = true;
1836 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_UN,
1837 MVPP2_PRS_RI_L3_PROTO_MASK);
1838 mvpp2_prs_hw_write(priv, &pe);
1843 /* Parser default initialization */
1844 static int mvpp2_prs_default_init(struct udevice *dev,
1849 /* Enable tcam table */
1850 mvpp2_write(priv, MVPP2_PRS_TCAM_CTRL_REG, MVPP2_PRS_TCAM_EN_MASK);
1852 /* Clear all tcam and sram entries */
1853 for (index = 0; index < MVPP2_PRS_TCAM_SRAM_SIZE; index++) {
1854 mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, index);
1855 for (i = 0; i < MVPP2_PRS_TCAM_WORDS; i++)
1856 mvpp2_write(priv, MVPP2_PRS_TCAM_DATA_REG(i), 0);
1858 mvpp2_write(priv, MVPP2_PRS_SRAM_IDX_REG, index);
1859 for (i = 0; i < MVPP2_PRS_SRAM_WORDS; i++)
1860 mvpp2_write(priv, MVPP2_PRS_SRAM_DATA_REG(i), 0);
1863 /* Invalidate all tcam entries */
1864 for (index = 0; index < MVPP2_PRS_TCAM_SRAM_SIZE; index++)
1865 mvpp2_prs_hw_inv(priv, index);
1867 priv->prs_shadow = devm_kcalloc(dev, MVPP2_PRS_TCAM_SRAM_SIZE,
1868 sizeof(struct mvpp2_prs_shadow),
1870 if (!priv->prs_shadow)
1873 /* Always start from lookup = 0 */
1874 for (index = 0; index < MVPP2_MAX_PORTS; index++)
1875 mvpp2_prs_hw_port_init(priv, index, MVPP2_PRS_LU_MH,
1876 MVPP2_PRS_PORT_LU_MAX, 0);
1878 mvpp2_prs_def_flow_init(priv);
1880 mvpp2_prs_mh_init(priv);
1882 mvpp2_prs_mac_init(priv);
1884 err = mvpp2_prs_etype_init(priv);
1891 /* Compare MAC DA with tcam entry data */
1892 static bool mvpp2_prs_mac_range_equals(struct mvpp2_prs_entry *pe,
1893 const u8 *da, unsigned char *mask)
1895 unsigned char tcam_byte, tcam_mask;
1898 for (index = 0; index < ETH_ALEN; index++) {
1899 mvpp2_prs_tcam_data_byte_get(pe, index, &tcam_byte, &tcam_mask);
1900 if (tcam_mask != mask[index])
1903 if ((tcam_mask & tcam_byte) != (da[index] & mask[index]))
1910 /* Find tcam entry with matched pair <MAC DA, port> */
1911 static struct mvpp2_prs_entry *
1912 mvpp2_prs_mac_da_range_find(struct mvpp2 *priv, int pmap, const u8 *da,
1913 unsigned char *mask, int udf_type)
1915 struct mvpp2_prs_entry *pe;
1918 pe = kzalloc(sizeof(*pe), GFP_KERNEL);
1921 mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_MAC);
1923 /* Go through the all entires with MVPP2_PRS_LU_MAC */
1924 for (tid = MVPP2_PE_FIRST_FREE_TID;
1925 tid <= MVPP2_PE_LAST_FREE_TID; tid++) {
1926 unsigned int entry_pmap;
1928 if (!priv->prs_shadow[tid].valid ||
1929 (priv->prs_shadow[tid].lu != MVPP2_PRS_LU_MAC) ||
1930 (priv->prs_shadow[tid].udf != udf_type))
1934 mvpp2_prs_hw_read(priv, pe);
1935 entry_pmap = mvpp2_prs_tcam_port_map_get(pe);
1937 if (mvpp2_prs_mac_range_equals(pe, da, mask) &&
1946 /* Update parser's mac da entry */
1947 static int mvpp2_prs_mac_da_accept(struct mvpp2 *priv, int port,
1948 const u8 *da, bool add)
1950 struct mvpp2_prs_entry *pe;
1951 unsigned int pmap, len, ri;
1952 unsigned char mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
1955 /* Scan TCAM and see if entry with this <MAC DA, port> already exist */
1956 pe = mvpp2_prs_mac_da_range_find(priv, (1 << port), da, mask,
1957 MVPP2_PRS_UDF_MAC_DEF);
1964 /* Create new TCAM entry */
1965 /* Find first range mac entry*/
1966 for (tid = MVPP2_PE_FIRST_FREE_TID;
1967 tid <= MVPP2_PE_LAST_FREE_TID; tid++)
1968 if (priv->prs_shadow[tid].valid &&
1969 (priv->prs_shadow[tid].lu == MVPP2_PRS_LU_MAC) &&
1970 (priv->prs_shadow[tid].udf ==
1971 MVPP2_PRS_UDF_MAC_RANGE))
1974 /* Go through the all entries from first to last */
1975 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
1980 pe = kzalloc(sizeof(*pe), GFP_KERNEL);
1983 mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_MAC);
1986 /* Mask all ports */
1987 mvpp2_prs_tcam_port_map_set(pe, 0);
1990 /* Update port mask */
1991 mvpp2_prs_tcam_port_set(pe, port, add);
1993 /* Invalidate the entry if no ports are left enabled */
1994 pmap = mvpp2_prs_tcam_port_map_get(pe);
2000 mvpp2_prs_hw_inv(priv, pe->index);
2001 priv->prs_shadow[pe->index].valid = false;
2006 /* Continue - set next lookup */
2007 mvpp2_prs_sram_next_lu_set(pe, MVPP2_PRS_LU_DSA);
2009 /* Set match on DA */
2012 mvpp2_prs_tcam_data_byte_set(pe, len, da[len], 0xff);
2014 /* Set result info bits */
2015 ri = MVPP2_PRS_RI_L2_UCAST | MVPP2_PRS_RI_MAC_ME_MASK;
2017 mvpp2_prs_sram_ri_update(pe, ri, MVPP2_PRS_RI_L2_CAST_MASK |
2018 MVPP2_PRS_RI_MAC_ME_MASK);
2019 mvpp2_prs_shadow_ri_set(priv, pe->index, ri, MVPP2_PRS_RI_L2_CAST_MASK |
2020 MVPP2_PRS_RI_MAC_ME_MASK);
2022 /* Shift to ethertype */
2023 mvpp2_prs_sram_shift_set(pe, 2 * ETH_ALEN,
2024 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
2026 /* Update shadow table and hw entry */
2027 priv->prs_shadow[pe->index].udf = MVPP2_PRS_UDF_MAC_DEF;
2028 mvpp2_prs_shadow_set(priv, pe->index, MVPP2_PRS_LU_MAC);
2029 mvpp2_prs_hw_write(priv, pe);
2036 static int mvpp2_prs_update_mac_da(struct mvpp2_port *port, const u8 *da)
2040 /* Remove old parser entry */
2041 err = mvpp2_prs_mac_da_accept(port->priv, port->id, port->dev_addr,
2046 /* Add new parser entry */
2047 err = mvpp2_prs_mac_da_accept(port->priv, port->id, da, true);
2051 /* Set addr in the device */
2052 memcpy(port->dev_addr, da, ETH_ALEN);
2057 /* Set prs flow for the port */
2058 static int mvpp2_prs_def_flow(struct mvpp2_port *port)
2060 struct mvpp2_prs_entry *pe;
2063 pe = mvpp2_prs_flow_find(port->priv, port->id);
2065 /* Such entry not exist */
2067 /* Go through the all entires from last to first */
2068 tid = mvpp2_prs_tcam_first_free(port->priv,
2069 MVPP2_PE_LAST_FREE_TID,
2070 MVPP2_PE_FIRST_FREE_TID);
2074 pe = kzalloc(sizeof(*pe), GFP_KERNEL);
2078 mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_FLOWS);
2082 mvpp2_prs_sram_ai_update(pe, port->id, MVPP2_PRS_FLOW_ID_MASK);
2083 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_LU_DONE_BIT, 1);
2085 /* Update shadow table */
2086 mvpp2_prs_shadow_set(port->priv, pe->index, MVPP2_PRS_LU_FLOWS);
2089 mvpp2_prs_tcam_port_map_set(pe, (1 << port->id));
2090 mvpp2_prs_hw_write(port->priv, pe);
2096 /* Classifier configuration routines */
2098 /* Update classification flow table registers */
2099 static void mvpp2_cls_flow_write(struct mvpp2 *priv,
2100 struct mvpp2_cls_flow_entry *fe)
2102 mvpp2_write(priv, MVPP2_CLS_FLOW_INDEX_REG, fe->index);
2103 mvpp2_write(priv, MVPP2_CLS_FLOW_TBL0_REG, fe->data[0]);
2104 mvpp2_write(priv, MVPP2_CLS_FLOW_TBL1_REG, fe->data[1]);
2105 mvpp2_write(priv, MVPP2_CLS_FLOW_TBL2_REG, fe->data[2]);
2108 /* Update classification lookup table register */
2109 static void mvpp2_cls_lookup_write(struct mvpp2 *priv,
2110 struct mvpp2_cls_lookup_entry *le)
2114 val = (le->way << MVPP2_CLS_LKP_INDEX_WAY_OFFS) | le->lkpid;
2115 mvpp2_write(priv, MVPP2_CLS_LKP_INDEX_REG, val);
2116 mvpp2_write(priv, MVPP2_CLS_LKP_TBL_REG, le->data);
2119 /* Classifier default initialization */
2120 static void mvpp2_cls_init(struct mvpp2 *priv)
2122 struct mvpp2_cls_lookup_entry le;
2123 struct mvpp2_cls_flow_entry fe;
2126 /* Enable classifier */
2127 mvpp2_write(priv, MVPP2_CLS_MODE_REG, MVPP2_CLS_MODE_ACTIVE_MASK);
2129 /* Clear classifier flow table */
2130 memset(&fe.data, 0, MVPP2_CLS_FLOWS_TBL_DATA_WORDS);
2131 for (index = 0; index < MVPP2_CLS_FLOWS_TBL_SIZE; index++) {
2133 mvpp2_cls_flow_write(priv, &fe);
2136 /* Clear classifier lookup table */
2138 for (index = 0; index < MVPP2_CLS_LKP_TBL_SIZE; index++) {
2141 mvpp2_cls_lookup_write(priv, &le);
2144 mvpp2_cls_lookup_write(priv, &le);
2148 static void mvpp2_cls_port_config(struct mvpp2_port *port)
2150 struct mvpp2_cls_lookup_entry le;
2153 /* Set way for the port */
2154 val = mvpp2_read(port->priv, MVPP2_CLS_PORT_WAY_REG);
2155 val &= ~MVPP2_CLS_PORT_WAY_MASK(port->id);
2156 mvpp2_write(port->priv, MVPP2_CLS_PORT_WAY_REG, val);
2158 /* Pick the entry to be accessed in lookup ID decoding table
2159 * according to the way and lkpid.
2161 le.lkpid = port->id;
2165 /* Set initial CPU queue for receiving packets */
2166 le.data &= ~MVPP2_CLS_LKP_TBL_RXQ_MASK;
2167 le.data |= port->first_rxq;
2169 /* Disable classification engines */
2170 le.data &= ~MVPP2_CLS_LKP_TBL_LOOKUP_EN_MASK;
2172 /* Update lookup ID table entry */
2173 mvpp2_cls_lookup_write(port->priv, &le);
2176 /* Set CPU queue number for oversize packets */
2177 static void mvpp2_cls_oversize_rxq_set(struct mvpp2_port *port)
2181 mvpp2_write(port->priv, MVPP2_CLS_OVERSIZE_RXQ_LOW_REG(port->id),
2182 port->first_rxq & MVPP2_CLS_OVERSIZE_RXQ_LOW_MASK);
2184 mvpp2_write(port->priv, MVPP2_CLS_SWFWD_P2HQ_REG(port->id),
2185 (port->first_rxq >> MVPP2_CLS_OVERSIZE_RXQ_LOW_BITS));
2187 val = mvpp2_read(port->priv, MVPP2_CLS_SWFWD_PCTRL_REG);
2188 val |= MVPP2_CLS_SWFWD_PCTRL_MASK(port->id);
2189 mvpp2_write(port->priv, MVPP2_CLS_SWFWD_PCTRL_REG, val);
2192 /* Buffer Manager configuration routines */
2195 static int mvpp2_bm_pool_create(struct udevice *dev,
2197 struct mvpp2_bm_pool *bm_pool, int size)
2201 bm_pool->virt_addr = buffer_loc.bm_pool[bm_pool->id];
2202 bm_pool->dma_addr = (dma_addr_t)buffer_loc.bm_pool[bm_pool->id];
2203 if (!bm_pool->virt_addr)
2206 if (!IS_ALIGNED((unsigned long)bm_pool->virt_addr,
2207 MVPP2_BM_POOL_PTR_ALIGN)) {
2208 dev_err(&pdev->dev, "BM pool %d is not %d bytes aligned\n",
2209 bm_pool->id, MVPP2_BM_POOL_PTR_ALIGN);
2213 mvpp2_write(priv, MVPP2_BM_POOL_BASE_REG(bm_pool->id),
2215 mvpp2_write(priv, MVPP2_BM_POOL_SIZE_REG(bm_pool->id), size);
2217 val = mvpp2_read(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id));
2218 val |= MVPP2_BM_START_MASK;
2219 mvpp2_write(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id), val);
2221 bm_pool->type = MVPP2_BM_FREE;
2222 bm_pool->size = size;
2223 bm_pool->pkt_size = 0;
2224 bm_pool->buf_num = 0;
2229 /* Set pool buffer size */
2230 static void mvpp2_bm_pool_bufsize_set(struct mvpp2 *priv,
2231 struct mvpp2_bm_pool *bm_pool,
2236 bm_pool->buf_size = buf_size;
2238 val = ALIGN(buf_size, 1 << MVPP2_POOL_BUF_SIZE_OFFSET);
2239 mvpp2_write(priv, MVPP2_POOL_BUF_SIZE_REG(bm_pool->id), val);
2242 /* Free all buffers from the pool */
2243 static void mvpp2_bm_bufs_free(struct udevice *dev, struct mvpp2 *priv,
2244 struct mvpp2_bm_pool *bm_pool)
2246 bm_pool->buf_num = 0;
2250 static int mvpp2_bm_pool_destroy(struct udevice *dev,
2252 struct mvpp2_bm_pool *bm_pool)
2256 mvpp2_bm_bufs_free(dev, priv, bm_pool);
2257 if (bm_pool->buf_num) {
2258 dev_err(dev, "cannot free all buffers in pool %d\n", bm_pool->id);
2262 val = mvpp2_read(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id));
2263 val |= MVPP2_BM_STOP_MASK;
2264 mvpp2_write(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id), val);
2269 static int mvpp2_bm_pools_init(struct udevice *dev,
2273 struct mvpp2_bm_pool *bm_pool;
2275 /* Create all pools with maximum size */
2276 size = MVPP2_BM_POOL_SIZE_MAX;
2277 for (i = 0; i < MVPP2_BM_POOLS_NUM; i++) {
2278 bm_pool = &priv->bm_pools[i];
2280 err = mvpp2_bm_pool_create(dev, priv, bm_pool, size);
2282 goto err_unroll_pools;
2283 mvpp2_bm_pool_bufsize_set(priv, bm_pool, 0);
2288 dev_err(&pdev->dev, "failed to create BM pool %d, size %d\n", i, size);
2289 for (i = i - 1; i >= 0; i--)
2290 mvpp2_bm_pool_destroy(dev, priv, &priv->bm_pools[i]);
2294 static int mvpp2_bm_init(struct udevice *dev, struct mvpp2 *priv)
2298 for (i = 0; i < MVPP2_BM_POOLS_NUM; i++) {
2299 /* Mask BM all interrupts */
2300 mvpp2_write(priv, MVPP2_BM_INTR_MASK_REG(i), 0);
2301 /* Clear BM cause register */
2302 mvpp2_write(priv, MVPP2_BM_INTR_CAUSE_REG(i), 0);
2305 /* Allocate and initialize BM pools */
2306 priv->bm_pools = devm_kcalloc(dev, MVPP2_BM_POOLS_NUM,
2307 sizeof(struct mvpp2_bm_pool), GFP_KERNEL);
2308 if (!priv->bm_pools)
2311 err = mvpp2_bm_pools_init(dev, priv);
2317 /* Attach long pool to rxq */
2318 static void mvpp2_rxq_long_pool_set(struct mvpp2_port *port,
2319 int lrxq, int long_pool)
2324 /* Get queue physical ID */
2325 prxq = port->rxqs[lrxq]->id;
2327 val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(prxq));
2328 val &= ~MVPP2_RXQ_POOL_LONG_MASK;
2329 val |= ((long_pool << MVPP2_RXQ_POOL_LONG_OFFS) &
2330 MVPP2_RXQ_POOL_LONG_MASK);
2332 mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(prxq), val);
2335 /* Set pool number in a BM cookie */
2336 static inline u32 mvpp2_bm_cookie_pool_set(u32 cookie, int pool)
2340 bm = cookie & ~(0xFF << MVPP2_BM_COOKIE_POOL_OFFS);
2341 bm |= ((pool & 0xFF) << MVPP2_BM_COOKIE_POOL_OFFS);
2346 /* Get pool number from a BM cookie */
2347 static inline int mvpp2_bm_cookie_pool_get(unsigned long cookie)
2349 return (cookie >> MVPP2_BM_COOKIE_POOL_OFFS) & 0xFF;
2352 /* Release buffer to BM */
2353 static inline void mvpp2_bm_pool_put(struct mvpp2_port *port, int pool,
2354 dma_addr_t buf_dma_addr,
2355 unsigned long buf_virt_addr)
2357 mvpp2_write(port->priv, MVPP2_BM_VIRT_RLS_REG, buf_virt_addr);
2358 mvpp2_write(port->priv, MVPP2_BM_PHY_RLS_REG(pool), buf_dma_addr);
2361 /* Refill BM pool */
2362 static void mvpp2_pool_refill(struct mvpp2_port *port, u32 bm,
2363 dma_addr_t dma_addr,
2366 int pool = mvpp2_bm_cookie_pool_get(bm);
2368 mvpp2_bm_pool_put(port, pool, dma_addr, cookie);
2371 /* Allocate buffers for the pool */
2372 static int mvpp2_bm_bufs_add(struct mvpp2_port *port,
2373 struct mvpp2_bm_pool *bm_pool, int buf_num)
2378 (buf_num + bm_pool->buf_num > bm_pool->size)) {
2379 netdev_err(port->dev,
2380 "cannot allocate %d buffers for pool %d\n",
2381 buf_num, bm_pool->id);
2385 for (i = 0; i < buf_num; i++) {
2386 mvpp2_bm_pool_put(port, bm_pool->id,
2387 (dma_addr_t)buffer_loc.rx_buffer[i],
2388 (unsigned long)buffer_loc.rx_buffer[i]);
2392 /* Update BM driver with number of buffers added to pool */
2393 bm_pool->buf_num += i;
2394 bm_pool->in_use_thresh = bm_pool->buf_num / 4;
2399 /* Notify the driver that BM pool is being used as specific type and return the
2400 * pool pointer on success
2402 static struct mvpp2_bm_pool *
2403 mvpp2_bm_pool_use(struct mvpp2_port *port, int pool, enum mvpp2_bm_type type,
2406 struct mvpp2_bm_pool *new_pool = &port->priv->bm_pools[pool];
2409 if (new_pool->type != MVPP2_BM_FREE && new_pool->type != type) {
2410 netdev_err(port->dev, "mixing pool types is forbidden\n");
2414 if (new_pool->type == MVPP2_BM_FREE)
2415 new_pool->type = type;
2417 /* Allocate buffers in case BM pool is used as long pool, but packet
2418 * size doesn't match MTU or BM pool hasn't being used yet
2420 if (((type == MVPP2_BM_SWF_LONG) && (pkt_size > new_pool->pkt_size)) ||
2421 (new_pool->pkt_size == 0)) {
2424 /* Set default buffer number or free all the buffers in case
2425 * the pool is not empty
2427 pkts_num = new_pool->buf_num;
2429 pkts_num = type == MVPP2_BM_SWF_LONG ?
2430 MVPP2_BM_LONG_BUF_NUM :
2431 MVPP2_BM_SHORT_BUF_NUM;
2433 mvpp2_bm_bufs_free(NULL,
2434 port->priv, new_pool);
2436 new_pool->pkt_size = pkt_size;
2438 /* Allocate buffers for this pool */
2439 num = mvpp2_bm_bufs_add(port, new_pool, pkts_num);
2440 if (num != pkts_num) {
2441 dev_err(dev, "pool %d: %d of %d allocated\n",
2442 new_pool->id, num, pkts_num);
2447 mvpp2_bm_pool_bufsize_set(port->priv, new_pool,
2448 MVPP2_RX_BUF_SIZE(new_pool->pkt_size));
2453 /* Initialize pools for swf */
2454 static int mvpp2_swf_bm_pool_init(struct mvpp2_port *port)
2458 if (!port->pool_long) {
2460 mvpp2_bm_pool_use(port, MVPP2_BM_SWF_LONG_POOL(port->id),
2463 if (!port->pool_long)
2466 port->pool_long->port_map |= (1 << port->id);
2468 for (rxq = 0; rxq < rxq_number; rxq++)
2469 mvpp2_rxq_long_pool_set(port, rxq, port->pool_long->id);
2475 /* Port configuration routines */
2477 static void mvpp2_port_mii_set(struct mvpp2_port *port)
2481 val = readl(port->base + MVPP2_GMAC_CTRL_2_REG);
2483 switch (port->phy_interface) {
2484 case PHY_INTERFACE_MODE_SGMII:
2485 val |= MVPP2_GMAC_INBAND_AN_MASK;
2487 case PHY_INTERFACE_MODE_RGMII:
2488 val |= MVPP2_GMAC_PORT_RGMII_MASK;
2490 val &= ~MVPP2_GMAC_PCS_ENABLE_MASK;
2493 writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
2496 static void mvpp2_port_fc_adv_enable(struct mvpp2_port *port)
2500 val = readl(port->base + MVPP2_GMAC_AUTONEG_CONFIG);
2501 val |= MVPP2_GMAC_FC_ADV_EN;
2502 writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
2505 static void mvpp2_port_enable(struct mvpp2_port *port)
2509 val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
2510 val |= MVPP2_GMAC_PORT_EN_MASK;
2511 val |= MVPP2_GMAC_MIB_CNTR_EN_MASK;
2512 writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
2515 static void mvpp2_port_disable(struct mvpp2_port *port)
2519 val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
2520 val &= ~(MVPP2_GMAC_PORT_EN_MASK);
2521 writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
2524 /* Set IEEE 802.3x Flow Control Xon Packet Transmission Mode */
2525 static void mvpp2_port_periodic_xon_disable(struct mvpp2_port *port)
2529 val = readl(port->base + MVPP2_GMAC_CTRL_1_REG) &
2530 ~MVPP2_GMAC_PERIODIC_XON_EN_MASK;
2531 writel(val, port->base + MVPP2_GMAC_CTRL_1_REG);
2534 /* Configure loopback port */
2535 static void mvpp2_port_loopback_set(struct mvpp2_port *port)
2539 val = readl(port->base + MVPP2_GMAC_CTRL_1_REG);
2541 if (port->speed == 1000)
2542 val |= MVPP2_GMAC_GMII_LB_EN_MASK;
2544 val &= ~MVPP2_GMAC_GMII_LB_EN_MASK;
2546 if (port->phy_interface == PHY_INTERFACE_MODE_SGMII)
2547 val |= MVPP2_GMAC_PCS_LB_EN_MASK;
2549 val &= ~MVPP2_GMAC_PCS_LB_EN_MASK;
2551 writel(val, port->base + MVPP2_GMAC_CTRL_1_REG);
2554 static void mvpp2_port_reset(struct mvpp2_port *port)
2558 val = readl(port->base + MVPP2_GMAC_CTRL_2_REG) &
2559 ~MVPP2_GMAC_PORT_RESET_MASK;
2560 writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
2562 while (readl(port->base + MVPP2_GMAC_CTRL_2_REG) &
2563 MVPP2_GMAC_PORT_RESET_MASK)
2567 /* Change maximum receive size of the port */
2568 static inline void mvpp2_gmac_max_rx_size_set(struct mvpp2_port *port)
2572 val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
2573 val &= ~MVPP2_GMAC_MAX_RX_SIZE_MASK;
2574 val |= (((port->pkt_size - MVPP2_MH_SIZE) / 2) <<
2575 MVPP2_GMAC_MAX_RX_SIZE_OFFS);
2576 writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
2579 /* Set defaults to the MVPP2 port */
2580 static void mvpp2_defaults_set(struct mvpp2_port *port)
2582 int tx_port_num, val, queue, ptxq, lrxq;
2584 /* Configure port to loopback if needed */
2585 if (port->flags & MVPP2_F_LOOPBACK)
2586 mvpp2_port_loopback_set(port);
2588 /* Update TX FIFO MIN Threshold */
2589 val = readl(port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
2590 val &= ~MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK;
2591 /* Min. TX threshold must be less than minimal packet length */
2592 val |= MVPP2_GMAC_TX_FIFO_MIN_TH_MASK(64 - 4 - 2);
2593 writel(val, port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
2595 /* Disable Legacy WRR, Disable EJP, Release from reset */
2596 tx_port_num = mvpp2_egress_port(port);
2597 mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG,
2599 mvpp2_write(port->priv, MVPP2_TXP_SCHED_CMD_1_REG, 0);
2601 /* Close bandwidth for all queues */
2602 for (queue = 0; queue < MVPP2_MAX_TXQ; queue++) {
2603 ptxq = mvpp2_txq_phys(port->id, queue);
2604 mvpp2_write(port->priv,
2605 MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(ptxq), 0);
2608 /* Set refill period to 1 usec, refill tokens
2609 * and bucket size to maximum
2611 mvpp2_write(port->priv, MVPP2_TXP_SCHED_PERIOD_REG, 0xc8);
2612 val = mvpp2_read(port->priv, MVPP2_TXP_SCHED_REFILL_REG);
2613 val &= ~MVPP2_TXP_REFILL_PERIOD_ALL_MASK;
2614 val |= MVPP2_TXP_REFILL_PERIOD_MASK(1);
2615 val |= MVPP2_TXP_REFILL_TOKENS_ALL_MASK;
2616 mvpp2_write(port->priv, MVPP2_TXP_SCHED_REFILL_REG, val);
2617 val = MVPP2_TXP_TOKEN_SIZE_MAX;
2618 mvpp2_write(port->priv, MVPP2_TXP_SCHED_TOKEN_SIZE_REG, val);
2620 /* Set MaximumLowLatencyPacketSize value to 256 */
2621 mvpp2_write(port->priv, MVPP2_RX_CTRL_REG(port->id),
2622 MVPP2_RX_USE_PSEUDO_FOR_CSUM_MASK |
2623 MVPP2_RX_LOW_LATENCY_PKT_SIZE(256));
2625 /* Enable Rx cache snoop */
2626 for (lrxq = 0; lrxq < rxq_number; lrxq++) {
2627 queue = port->rxqs[lrxq]->id;
2628 val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(queue));
2629 val |= MVPP2_SNOOP_PKT_SIZE_MASK |
2630 MVPP2_SNOOP_BUF_HDR_MASK;
2631 mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(queue), val);
2635 /* Enable/disable receiving packets */
2636 static void mvpp2_ingress_enable(struct mvpp2_port *port)
2641 for (lrxq = 0; lrxq < rxq_number; lrxq++) {
2642 queue = port->rxqs[lrxq]->id;
2643 val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(queue));
2644 val &= ~MVPP2_RXQ_DISABLE_MASK;
2645 mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(queue), val);
2649 static void mvpp2_ingress_disable(struct mvpp2_port *port)
2654 for (lrxq = 0; lrxq < rxq_number; lrxq++) {
2655 queue = port->rxqs[lrxq]->id;
2656 val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(queue));
2657 val |= MVPP2_RXQ_DISABLE_MASK;
2658 mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(queue), val);
2662 /* Enable transmit via physical egress queue
2663 * - HW starts take descriptors from DRAM
2665 static void mvpp2_egress_enable(struct mvpp2_port *port)
2669 int tx_port_num = mvpp2_egress_port(port);
2671 /* Enable all initialized TXs. */
2673 for (queue = 0; queue < txq_number; queue++) {
2674 struct mvpp2_tx_queue *txq = port->txqs[queue];
2676 if (txq->descs != NULL)
2677 qmap |= (1 << queue);
2680 mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num);
2681 mvpp2_write(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG, qmap);
2684 /* Disable transmit via physical egress queue
2685 * - HW doesn't take descriptors from DRAM
2687 static void mvpp2_egress_disable(struct mvpp2_port *port)
2691 int tx_port_num = mvpp2_egress_port(port);
2693 /* Issue stop command for active channels only */
2694 mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num);
2695 reg_data = (mvpp2_read(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG)) &
2696 MVPP2_TXP_SCHED_ENQ_MASK;
2698 mvpp2_write(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG,
2699 (reg_data << MVPP2_TXP_SCHED_DISQ_OFFSET));
2701 /* Wait for all Tx activity to terminate. */
2704 if (delay >= MVPP2_TX_DISABLE_TIMEOUT_MSEC) {
2705 netdev_warn(port->dev,
2706 "Tx stop timed out, status=0x%08x\n",
2713 /* Check port TX Command register that all
2714 * Tx queues are stopped
2716 reg_data = mvpp2_read(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG);
2717 } while (reg_data & MVPP2_TXP_SCHED_ENQ_MASK);
2720 /* Rx descriptors helper methods */
2722 /* Get number of Rx descriptors occupied by received packets */
2724 mvpp2_rxq_received(struct mvpp2_port *port, int rxq_id)
2726 u32 val = mvpp2_read(port->priv, MVPP2_RXQ_STATUS_REG(rxq_id));
2728 return val & MVPP2_RXQ_OCCUPIED_MASK;
2731 /* Update Rx queue status with the number of occupied and available
2732 * Rx descriptor slots.
2735 mvpp2_rxq_status_update(struct mvpp2_port *port, int rxq_id,
2736 int used_count, int free_count)
2738 /* Decrement the number of used descriptors and increment count
2739 * increment the number of free descriptors.
2741 u32 val = used_count | (free_count << MVPP2_RXQ_NUM_NEW_OFFSET);
2743 mvpp2_write(port->priv, MVPP2_RXQ_STATUS_UPDATE_REG(rxq_id), val);
2746 /* Get pointer to next RX descriptor to be processed by SW */
2747 static inline struct mvpp2_rx_desc *
2748 mvpp2_rxq_next_desc_get(struct mvpp2_rx_queue *rxq)
2750 int rx_desc = rxq->next_desc_to_proc;
2752 rxq->next_desc_to_proc = MVPP2_QUEUE_NEXT_DESC(rxq, rx_desc);
2753 prefetch(rxq->descs + rxq->next_desc_to_proc);
2754 return rxq->descs + rx_desc;
2757 /* Set rx queue offset */
2758 static void mvpp2_rxq_offset_set(struct mvpp2_port *port,
2759 int prxq, int offset)
2763 /* Convert offset from bytes to units of 32 bytes */
2764 offset = offset >> 5;
2766 val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(prxq));
2767 val &= ~MVPP2_RXQ_PACKET_OFFSET_MASK;
2770 val |= ((offset << MVPP2_RXQ_PACKET_OFFSET_OFFS) &
2771 MVPP2_RXQ_PACKET_OFFSET_MASK);
2773 mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(prxq), val);
2776 /* Obtain BM cookie information from descriptor */
2777 static u32 mvpp2_bm_cookie_build(struct mvpp2_rx_desc *rx_desc)
2779 int pool = (rx_desc->status & MVPP2_RXD_BM_POOL_ID_MASK) >>
2780 MVPP2_RXD_BM_POOL_ID_OFFS;
2781 int cpu = smp_processor_id();
2783 return ((pool & 0xFF) << MVPP2_BM_COOKIE_POOL_OFFS) |
2784 ((cpu & 0xFF) << MVPP2_BM_COOKIE_CPU_OFFS);
2787 /* Tx descriptors helper methods */
2789 /* Get number of Tx descriptors waiting to be transmitted by HW */
2790 static int mvpp2_txq_pend_desc_num_get(struct mvpp2_port *port,
2791 struct mvpp2_tx_queue *txq)
2795 mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
2796 val = mvpp2_read(port->priv, MVPP2_TXQ_PENDING_REG);
2798 return val & MVPP2_TXQ_PENDING_MASK;
2801 /* Get pointer to next Tx descriptor to be processed (send) by HW */
2802 static struct mvpp2_tx_desc *
2803 mvpp2_txq_next_desc_get(struct mvpp2_tx_queue *txq)
2805 int tx_desc = txq->next_desc_to_proc;
2807 txq->next_desc_to_proc = MVPP2_QUEUE_NEXT_DESC(txq, tx_desc);
2808 return txq->descs + tx_desc;
2811 /* Update HW with number of aggregated Tx descriptors to be sent */
2812 static void mvpp2_aggr_txq_pend_desc_add(struct mvpp2_port *port, int pending)
2814 /* aggregated access - relevant TXQ number is written in TX desc */
2815 mvpp2_write(port->priv, MVPP2_AGGR_TXQ_UPDATE_REG, pending);
2818 /* Get number of sent descriptors and decrement counter.
2819 * The number of sent descriptors is returned.
2822 static inline int mvpp2_txq_sent_desc_proc(struct mvpp2_port *port,
2823 struct mvpp2_tx_queue *txq)
2827 /* Reading status reg resets transmitted descriptor counter */
2828 val = mvpp2_read(port->priv, MVPP2_TXQ_SENT_REG(txq->id));
2830 return (val & MVPP2_TRANSMITTED_COUNT_MASK) >>
2831 MVPP2_TRANSMITTED_COUNT_OFFSET;
2834 static void mvpp2_txq_sent_counter_clear(void *arg)
2836 struct mvpp2_port *port = arg;
2839 for (queue = 0; queue < txq_number; queue++) {
2840 int id = port->txqs[queue]->id;
2842 mvpp2_read(port->priv, MVPP2_TXQ_SENT_REG(id));
2846 /* Set max sizes for Tx queues */
2847 static void mvpp2_txp_max_tx_size_set(struct mvpp2_port *port)
2850 int txq, tx_port_num;
2852 mtu = port->pkt_size * 8;
2853 if (mtu > MVPP2_TXP_MTU_MAX)
2854 mtu = MVPP2_TXP_MTU_MAX;
2856 /* WA for wrong Token bucket update: Set MTU value = 3*real MTU value */
2859 /* Indirect access to registers */
2860 tx_port_num = mvpp2_egress_port(port);
2861 mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num);
2864 val = mvpp2_read(port->priv, MVPP2_TXP_SCHED_MTU_REG);
2865 val &= ~MVPP2_TXP_MTU_MAX;
2867 mvpp2_write(port->priv, MVPP2_TXP_SCHED_MTU_REG, val);
2869 /* TXP token size and all TXQs token size must be larger that MTU */
2870 val = mvpp2_read(port->priv, MVPP2_TXP_SCHED_TOKEN_SIZE_REG);
2871 size = val & MVPP2_TXP_TOKEN_SIZE_MAX;
2874 val &= ~MVPP2_TXP_TOKEN_SIZE_MAX;
2876 mvpp2_write(port->priv, MVPP2_TXP_SCHED_TOKEN_SIZE_REG, val);
2879 for (txq = 0; txq < txq_number; txq++) {
2880 val = mvpp2_read(port->priv,
2881 MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(txq));
2882 size = val & MVPP2_TXQ_TOKEN_SIZE_MAX;
2886 val &= ~MVPP2_TXQ_TOKEN_SIZE_MAX;
2888 mvpp2_write(port->priv,
2889 MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(txq),
2895 /* Free Tx queue skbuffs */
2896 static void mvpp2_txq_bufs_free(struct mvpp2_port *port,
2897 struct mvpp2_tx_queue *txq,
2898 struct mvpp2_txq_pcpu *txq_pcpu, int num)
2902 for (i = 0; i < num; i++)
2903 mvpp2_txq_inc_get(txq_pcpu);
2906 static inline struct mvpp2_rx_queue *mvpp2_get_rx_queue(struct mvpp2_port *port,
2909 int queue = fls(cause) - 1;
2911 return port->rxqs[queue];
2914 static inline struct mvpp2_tx_queue *mvpp2_get_tx_queue(struct mvpp2_port *port,
2917 int queue = fls(cause) - 1;
2919 return port->txqs[queue];
2922 /* Rx/Tx queue initialization/cleanup methods */
2924 /* Allocate and initialize descriptors for aggr TXQ */
2925 static int mvpp2_aggr_txq_init(struct udevice *dev,
2926 struct mvpp2_tx_queue *aggr_txq,
2927 int desc_num, int cpu,
2930 /* Allocate memory for TX descriptors */
2931 aggr_txq->descs = buffer_loc.aggr_tx_descs;
2932 aggr_txq->descs_dma = (dma_addr_t)buffer_loc.aggr_tx_descs;
2933 if (!aggr_txq->descs)
2936 /* Make sure descriptor address is cache line size aligned */
2937 BUG_ON(aggr_txq->descs !=
2938 PTR_ALIGN(aggr_txq->descs, MVPP2_CPU_D_CACHE_LINE_SIZE));
2940 aggr_txq->last_desc = aggr_txq->size - 1;
2942 /* Aggr TXQ no reset WA */
2943 aggr_txq->next_desc_to_proc = mvpp2_read(priv,
2944 MVPP2_AGGR_TXQ_INDEX_REG(cpu));
2946 /* Set Tx descriptors queue starting address */
2947 /* indirect access */
2948 mvpp2_write(priv, MVPP2_AGGR_TXQ_DESC_ADDR_REG(cpu),
2949 aggr_txq->descs_dma);
2950 mvpp2_write(priv, MVPP2_AGGR_TXQ_DESC_SIZE_REG(cpu), desc_num);
2955 /* Create a specified Rx queue */
2956 static int mvpp2_rxq_init(struct mvpp2_port *port,
2957 struct mvpp2_rx_queue *rxq)
2960 rxq->size = port->rx_ring_size;
2962 /* Allocate memory for RX descriptors */
2963 rxq->descs = buffer_loc.rx_descs;
2964 rxq->descs_dma = (dma_addr_t)buffer_loc.rx_descs;
2968 BUG_ON(rxq->descs !=
2969 PTR_ALIGN(rxq->descs, MVPP2_CPU_D_CACHE_LINE_SIZE));
2971 rxq->last_desc = rxq->size - 1;
2973 /* Zero occupied and non-occupied counters - direct access */
2974 mvpp2_write(port->priv, MVPP2_RXQ_STATUS_REG(rxq->id), 0);
2976 /* Set Rx descriptors queue starting address - indirect access */
2977 mvpp2_write(port->priv, MVPP2_RXQ_NUM_REG, rxq->id);
2978 mvpp2_write(port->priv, MVPP2_RXQ_DESC_ADDR_REG, rxq->descs_dma);
2979 mvpp2_write(port->priv, MVPP2_RXQ_DESC_SIZE_REG, rxq->size);
2980 mvpp2_write(port->priv, MVPP2_RXQ_INDEX_REG, 0);
2983 mvpp2_rxq_offset_set(port, rxq->id, NET_SKB_PAD);
2985 /* Add number of descriptors ready for receiving packets */
2986 mvpp2_rxq_status_update(port, rxq->id, 0, rxq->size);
2991 /* Push packets received by the RXQ to BM pool */
2992 static void mvpp2_rxq_drop_pkts(struct mvpp2_port *port,
2993 struct mvpp2_rx_queue *rxq)
2997 rx_received = mvpp2_rxq_received(port, rxq->id);
3001 for (i = 0; i < rx_received; i++) {
3002 struct mvpp2_rx_desc *rx_desc = mvpp2_rxq_next_desc_get(rxq);
3003 u32 bm = mvpp2_bm_cookie_build(rx_desc);
3005 mvpp2_pool_refill(port, bm, rx_desc->buf_dma_addr,
3006 rx_desc->buf_cookie);
3008 mvpp2_rxq_status_update(port, rxq->id, rx_received, rx_received);
3011 /* Cleanup Rx queue */
3012 static void mvpp2_rxq_deinit(struct mvpp2_port *port,
3013 struct mvpp2_rx_queue *rxq)
3015 mvpp2_rxq_drop_pkts(port, rxq);
3019 rxq->next_desc_to_proc = 0;
3022 /* Clear Rx descriptors queue starting address and size;
3023 * free descriptor number
3025 mvpp2_write(port->priv, MVPP2_RXQ_STATUS_REG(rxq->id), 0);
3026 mvpp2_write(port->priv, MVPP2_RXQ_NUM_REG, rxq->id);
3027 mvpp2_write(port->priv, MVPP2_RXQ_DESC_ADDR_REG, 0);
3028 mvpp2_write(port->priv, MVPP2_RXQ_DESC_SIZE_REG, 0);
3031 /* Create and initialize a Tx queue */
3032 static int mvpp2_txq_init(struct mvpp2_port *port,
3033 struct mvpp2_tx_queue *txq)
3036 int cpu, desc, desc_per_txq, tx_port_num;
3037 struct mvpp2_txq_pcpu *txq_pcpu;
3039 txq->size = port->tx_ring_size;
3041 /* Allocate memory for Tx descriptors */
3042 txq->descs = buffer_loc.tx_descs;
3043 txq->descs_dma = (dma_addr_t)buffer_loc.tx_descs;
3047 /* Make sure descriptor address is cache line size aligned */
3048 BUG_ON(txq->descs !=
3049 PTR_ALIGN(txq->descs, MVPP2_CPU_D_CACHE_LINE_SIZE));
3051 txq->last_desc = txq->size - 1;
3053 /* Set Tx descriptors queue starting address - indirect access */
3054 mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
3055 mvpp2_write(port->priv, MVPP2_TXQ_DESC_ADDR_REG, txq->descs_dma);
3056 mvpp2_write(port->priv, MVPP2_TXQ_DESC_SIZE_REG, txq->size &
3057 MVPP2_TXQ_DESC_SIZE_MASK);
3058 mvpp2_write(port->priv, MVPP2_TXQ_INDEX_REG, 0);
3059 mvpp2_write(port->priv, MVPP2_TXQ_RSVD_CLR_REG,
3060 txq->id << MVPP2_TXQ_RSVD_CLR_OFFSET);
3061 val = mvpp2_read(port->priv, MVPP2_TXQ_PENDING_REG);
3062 val &= ~MVPP2_TXQ_PENDING_MASK;
3063 mvpp2_write(port->priv, MVPP2_TXQ_PENDING_REG, val);
3065 /* Calculate base address in prefetch buffer. We reserve 16 descriptors
3066 * for each existing TXQ.
3067 * TCONTS for PON port must be continuous from 0 to MVPP2_MAX_TCONT
3068 * GBE ports assumed to be continious from 0 to MVPP2_MAX_PORTS
3071 desc = (port->id * MVPP2_MAX_TXQ * desc_per_txq) +
3072 (txq->log_id * desc_per_txq);
3074 mvpp2_write(port->priv, MVPP2_TXQ_PREF_BUF_REG,
3075 MVPP2_PREF_BUF_PTR(desc) | MVPP2_PREF_BUF_SIZE_16 |
3076 MVPP2_PREF_BUF_THRESH(desc_per_txq/2));
3078 /* WRR / EJP configuration - indirect access */
3079 tx_port_num = mvpp2_egress_port(port);
3080 mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num);
3082 val = mvpp2_read(port->priv, MVPP2_TXQ_SCHED_REFILL_REG(txq->log_id));
3083 val &= ~MVPP2_TXQ_REFILL_PERIOD_ALL_MASK;
3084 val |= MVPP2_TXQ_REFILL_PERIOD_MASK(1);
3085 val |= MVPP2_TXQ_REFILL_TOKENS_ALL_MASK;
3086 mvpp2_write(port->priv, MVPP2_TXQ_SCHED_REFILL_REG(txq->log_id), val);
3088 val = MVPP2_TXQ_TOKEN_SIZE_MAX;
3089 mvpp2_write(port->priv, MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(txq->log_id),
3092 for_each_present_cpu(cpu) {
3093 txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
3094 txq_pcpu->size = txq->size;
3100 /* Free allocated TXQ resources */
3101 static void mvpp2_txq_deinit(struct mvpp2_port *port,
3102 struct mvpp2_tx_queue *txq)
3106 txq->next_desc_to_proc = 0;
3109 /* Set minimum bandwidth for disabled TXQs */
3110 mvpp2_write(port->priv, MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(txq->id), 0);
3112 /* Set Tx descriptors queue starting address and size */
3113 mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
3114 mvpp2_write(port->priv, MVPP2_TXQ_DESC_ADDR_REG, 0);
3115 mvpp2_write(port->priv, MVPP2_TXQ_DESC_SIZE_REG, 0);
3118 /* Cleanup Tx ports */
3119 static void mvpp2_txq_clean(struct mvpp2_port *port, struct mvpp2_tx_queue *txq)
3121 struct mvpp2_txq_pcpu *txq_pcpu;
3122 int delay, pending, cpu;
3125 mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
3126 val = mvpp2_read(port->priv, MVPP2_TXQ_PREF_BUF_REG);
3127 val |= MVPP2_TXQ_DRAIN_EN_MASK;
3128 mvpp2_write(port->priv, MVPP2_TXQ_PREF_BUF_REG, val);
3130 /* The napi queue has been stopped so wait for all packets
3131 * to be transmitted.
3135 if (delay >= MVPP2_TX_PENDING_TIMEOUT_MSEC) {
3136 netdev_warn(port->dev,
3137 "port %d: cleaning queue %d timed out\n",
3138 port->id, txq->log_id);
3144 pending = mvpp2_txq_pend_desc_num_get(port, txq);
3147 val &= ~MVPP2_TXQ_DRAIN_EN_MASK;
3148 mvpp2_write(port->priv, MVPP2_TXQ_PREF_BUF_REG, val);
3150 for_each_present_cpu(cpu) {
3151 txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
3153 /* Release all packets */
3154 mvpp2_txq_bufs_free(port, txq, txq_pcpu, txq_pcpu->count);
3157 txq_pcpu->count = 0;
3158 txq_pcpu->txq_put_index = 0;
3159 txq_pcpu->txq_get_index = 0;
3163 /* Cleanup all Tx queues */
3164 static void mvpp2_cleanup_txqs(struct mvpp2_port *port)
3166 struct mvpp2_tx_queue *txq;
3170 val = mvpp2_read(port->priv, MVPP2_TX_PORT_FLUSH_REG);
3172 /* Reset Tx ports and delete Tx queues */
3173 val |= MVPP2_TX_PORT_FLUSH_MASK(port->id);
3174 mvpp2_write(port->priv, MVPP2_TX_PORT_FLUSH_REG, val);
3176 for (queue = 0; queue < txq_number; queue++) {
3177 txq = port->txqs[queue];
3178 mvpp2_txq_clean(port, txq);
3179 mvpp2_txq_deinit(port, txq);
3182 mvpp2_txq_sent_counter_clear(port);
3184 val &= ~MVPP2_TX_PORT_FLUSH_MASK(port->id);
3185 mvpp2_write(port->priv, MVPP2_TX_PORT_FLUSH_REG, val);
3188 /* Cleanup all Rx queues */
3189 static void mvpp2_cleanup_rxqs(struct mvpp2_port *port)
3193 for (queue = 0; queue < rxq_number; queue++)
3194 mvpp2_rxq_deinit(port, port->rxqs[queue]);
3197 /* Init all Rx queues for port */
3198 static int mvpp2_setup_rxqs(struct mvpp2_port *port)
3202 for (queue = 0; queue < rxq_number; queue++) {
3203 err = mvpp2_rxq_init(port, port->rxqs[queue]);
3210 mvpp2_cleanup_rxqs(port);
3214 /* Init all tx queues for port */
3215 static int mvpp2_setup_txqs(struct mvpp2_port *port)
3217 struct mvpp2_tx_queue *txq;
3220 for (queue = 0; queue < txq_number; queue++) {
3221 txq = port->txqs[queue];
3222 err = mvpp2_txq_init(port, txq);
3227 mvpp2_txq_sent_counter_clear(port);
3231 mvpp2_cleanup_txqs(port);
3236 static void mvpp2_link_event(struct mvpp2_port *port)
3238 struct phy_device *phydev = port->phy_dev;
3239 int status_change = 0;
3243 if ((port->speed != phydev->speed) ||
3244 (port->duplex != phydev->duplex)) {
3247 val = readl(port->base + MVPP2_GMAC_AUTONEG_CONFIG);
3248 val &= ~(MVPP2_GMAC_CONFIG_MII_SPEED |
3249 MVPP2_GMAC_CONFIG_GMII_SPEED |
3250 MVPP2_GMAC_CONFIG_FULL_DUPLEX |
3251 MVPP2_GMAC_AN_SPEED_EN |
3252 MVPP2_GMAC_AN_DUPLEX_EN);
3255 val |= MVPP2_GMAC_CONFIG_FULL_DUPLEX;
3257 if (phydev->speed == SPEED_1000)
3258 val |= MVPP2_GMAC_CONFIG_GMII_SPEED;
3259 else if (phydev->speed == SPEED_100)
3260 val |= MVPP2_GMAC_CONFIG_MII_SPEED;
3262 writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
3264 port->duplex = phydev->duplex;
3265 port->speed = phydev->speed;
3269 if (phydev->link != port->link) {
3270 if (!phydev->link) {
3275 port->link = phydev->link;
3279 if (status_change) {
3281 val = readl(port->base + MVPP2_GMAC_AUTONEG_CONFIG);
3282 val |= (MVPP2_GMAC_FORCE_LINK_PASS |
3283 MVPP2_GMAC_FORCE_LINK_DOWN);
3284 writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
3285 mvpp2_egress_enable(port);
3286 mvpp2_ingress_enable(port);
3288 mvpp2_ingress_disable(port);
3289 mvpp2_egress_disable(port);
3294 /* Main RX/TX processing routines */
3296 /* Display more error info */
3297 static void mvpp2_rx_error(struct mvpp2_port *port,
3298 struct mvpp2_rx_desc *rx_desc)
3300 u32 status = rx_desc->status;
3302 switch (status & MVPP2_RXD_ERR_CODE_MASK) {
3303 case MVPP2_RXD_ERR_CRC:
3304 netdev_err(port->dev, "bad rx status %08x (crc error), size=%d\n",
3305 status, rx_desc->data_size);
3307 case MVPP2_RXD_ERR_OVERRUN:
3308 netdev_err(port->dev, "bad rx status %08x (overrun error), size=%d\n",
3309 status, rx_desc->data_size);
3311 case MVPP2_RXD_ERR_RESOURCE:
3312 netdev_err(port->dev, "bad rx status %08x (resource error), size=%d\n",
3313 status, rx_desc->data_size);
3318 /* Reuse skb if possible, or allocate a new skb and add it to BM pool */
3319 static int mvpp2_rx_refill(struct mvpp2_port *port,
3320 struct mvpp2_bm_pool *bm_pool,
3321 u32 bm, dma_addr_t dma_addr)
3323 mvpp2_pool_refill(port, bm, dma_addr, (unsigned long)dma_addr);
3327 /* Set hw internals when starting port */
3328 static void mvpp2_start_dev(struct mvpp2_port *port)
3330 mvpp2_gmac_max_rx_size_set(port);
3331 mvpp2_txp_max_tx_size_set(port);
3333 mvpp2_port_enable(port);
3336 /* Set hw internals when stopping port */
3337 static void mvpp2_stop_dev(struct mvpp2_port *port)
3339 /* Stop new packets from arriving to RXQs */
3340 mvpp2_ingress_disable(port);
3342 mvpp2_egress_disable(port);
3343 mvpp2_port_disable(port);
3346 static int mvpp2_phy_connect(struct udevice *dev, struct mvpp2_port *port)
3348 struct phy_device *phy_dev;
3350 if (!port->init || port->link == 0) {
3351 phy_dev = phy_connect(port->priv->bus, port->phyaddr, dev,
3352 port->phy_interface);
3353 port->phy_dev = phy_dev;
3355 netdev_err(port->dev, "cannot connect to phy\n");
3358 phy_dev->supported &= PHY_GBIT_FEATURES;
3359 phy_dev->advertising = phy_dev->supported;
3361 port->phy_dev = phy_dev;
3366 phy_config(phy_dev);
3367 phy_startup(phy_dev);
3368 if (!phy_dev->link) {
3369 printf("%s: No link\n", phy_dev->dev->name);
3375 mvpp2_egress_enable(port);
3376 mvpp2_ingress_enable(port);
3382 static int mvpp2_open(struct udevice *dev, struct mvpp2_port *port)
3384 unsigned char mac_bcast[ETH_ALEN] = {
3385 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
3388 err = mvpp2_prs_mac_da_accept(port->priv, port->id, mac_bcast, true);
3390 netdev_err(dev, "mvpp2_prs_mac_da_accept BC failed\n");
3393 err = mvpp2_prs_mac_da_accept(port->priv, port->id,
3394 port->dev_addr, true);
3396 netdev_err(dev, "mvpp2_prs_mac_da_accept MC failed\n");
3399 err = mvpp2_prs_def_flow(port);
3401 netdev_err(dev, "mvpp2_prs_def_flow failed\n");
3405 /* Allocate the Rx/Tx queues */
3406 err = mvpp2_setup_rxqs(port);
3408 netdev_err(port->dev, "cannot allocate Rx queues\n");
3412 err = mvpp2_setup_txqs(port);
3414 netdev_err(port->dev, "cannot allocate Tx queues\n");
3418 err = mvpp2_phy_connect(dev, port);
3422 mvpp2_link_event(port);
3424 mvpp2_start_dev(port);
3429 /* No Device ops here in U-Boot */
3431 /* Driver initialization */
3433 static void mvpp2_port_power_up(struct mvpp2_port *port)
3435 mvpp2_port_mii_set(port);
3436 mvpp2_port_periodic_xon_disable(port);
3437 mvpp2_port_fc_adv_enable(port);
3438 mvpp2_port_reset(port);
3441 /* Initialize port HW */
3442 static int mvpp2_port_init(struct udevice *dev, struct mvpp2_port *port)
3444 struct mvpp2 *priv = port->priv;
3445 struct mvpp2_txq_pcpu *txq_pcpu;
3446 int queue, cpu, err;
3448 if (port->first_rxq + rxq_number > MVPP2_RXQ_TOTAL_NUM)
3452 mvpp2_egress_disable(port);
3453 mvpp2_port_disable(port);
3455 port->txqs = devm_kcalloc(dev, txq_number, sizeof(*port->txqs),
3460 /* Associate physical Tx queues to this port and initialize.
3461 * The mapping is predefined.
3463 for (queue = 0; queue < txq_number; queue++) {
3464 int queue_phy_id = mvpp2_txq_phys(port->id, queue);
3465 struct mvpp2_tx_queue *txq;
3467 txq = devm_kzalloc(dev, sizeof(*txq), GFP_KERNEL);
3471 txq->pcpu = devm_kzalloc(dev, sizeof(struct mvpp2_txq_pcpu),
3476 txq->id = queue_phy_id;
3477 txq->log_id = queue;
3478 txq->done_pkts_coal = MVPP2_TXDONE_COAL_PKTS_THRESH;
3479 for_each_present_cpu(cpu) {
3480 txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
3481 txq_pcpu->cpu = cpu;
3484 port->txqs[queue] = txq;
3487 port->rxqs = devm_kcalloc(dev, rxq_number, sizeof(*port->rxqs),
3492 /* Allocate and initialize Rx queue for this port */
3493 for (queue = 0; queue < rxq_number; queue++) {
3494 struct mvpp2_rx_queue *rxq;
3496 /* Map physical Rx queue to port's logical Rx queue */
3497 rxq = devm_kzalloc(dev, sizeof(*rxq), GFP_KERNEL);
3500 /* Map this Rx queue to a physical queue */
3501 rxq->id = port->first_rxq + queue;
3502 rxq->port = port->id;
3503 rxq->logic_rxq = queue;
3505 port->rxqs[queue] = rxq;
3508 /* Configure Rx queue group interrupt for this port */
3509 mvpp2_write(priv, MVPP2_ISR_RXQ_GROUP_REG(port->id), CONFIG_MV_ETH_RXQ);
3511 /* Create Rx descriptor rings */
3512 for (queue = 0; queue < rxq_number; queue++) {
3513 struct mvpp2_rx_queue *rxq = port->rxqs[queue];
3515 rxq->size = port->rx_ring_size;
3516 rxq->pkts_coal = MVPP2_RX_COAL_PKTS;
3517 rxq->time_coal = MVPP2_RX_COAL_USEC;
3520 mvpp2_ingress_disable(port);
3522 /* Port default configuration */
3523 mvpp2_defaults_set(port);
3525 /* Port's classifier configuration */
3526 mvpp2_cls_oversize_rxq_set(port);
3527 mvpp2_cls_port_config(port);
3529 /* Provide an initial Rx packet size */
3530 port->pkt_size = MVPP2_RX_PKT_SIZE(PKTSIZE_ALIGN);
3532 /* Initialize pools for swf */
3533 err = mvpp2_swf_bm_pool_init(port);
3540 /* Ports initialization */
3541 static int mvpp2_port_probe(struct udevice *dev,
3542 struct mvpp2_port *port,
3545 int *next_first_rxq)
3550 const char *phy_mode_str;
3552 int priv_common_regs_num = 2;
3555 phy_node = fdtdec_lookup_phandle(gd->fdt_blob, port_node, "phy");
3557 dev_err(&pdev->dev, "missing phy\n");
3561 phy_mode_str = fdt_getprop(gd->fdt_blob, port_node, "phy-mode", NULL);
3563 phy_mode = phy_get_interface_by_name(phy_mode_str);
3564 if (phy_mode == -1) {
3565 dev_err(&pdev->dev, "incorrect phy mode\n");
3569 id = fdtdec_get_int(gd->fdt_blob, port_node, "port-id", -1);
3571 dev_err(&pdev->dev, "missing port-id value\n");
3575 phyaddr = fdtdec_get_int(gd->fdt_blob, phy_node, "reg", 0);
3579 port->first_rxq = *next_first_rxq;
3580 port->phy_node = phy_node;
3581 port->phy_interface = phy_mode;
3582 port->phyaddr = phyaddr;
3584 port->base = (void __iomem *)dev_get_addr_index(dev->parent,
3585 priv_common_regs_num
3587 if (IS_ERR(port->base))
3588 return PTR_ERR(port->base);
3590 port->tx_ring_size = MVPP2_MAX_TXD;
3591 port->rx_ring_size = MVPP2_MAX_RXD;
3593 err = mvpp2_port_init(dev, port);
3595 dev_err(&pdev->dev, "failed to init port %d\n", id);
3598 mvpp2_port_power_up(port);
3600 /* Increment the first Rx queue number to be used by the next port */
3601 *next_first_rxq += CONFIG_MV_ETH_RXQ;
3602 priv->port_list[id] = port;
3606 /* Initialize decoding windows */
3607 static void mvpp2_conf_mbus_windows(const struct mbus_dram_target_info *dram,
3613 for (i = 0; i < 6; i++) {
3614 mvpp2_write(priv, MVPP2_WIN_BASE(i), 0);
3615 mvpp2_write(priv, MVPP2_WIN_SIZE(i), 0);
3618 mvpp2_write(priv, MVPP2_WIN_REMAP(i), 0);
3623 for (i = 0; i < dram->num_cs; i++) {
3624 const struct mbus_dram_window *cs = dram->cs + i;
3626 mvpp2_write(priv, MVPP2_WIN_BASE(i),
3627 (cs->base & 0xffff0000) | (cs->mbus_attr << 8) |
3628 dram->mbus_dram_target_id);
3630 mvpp2_write(priv, MVPP2_WIN_SIZE(i),
3631 (cs->size - 1) & 0xffff0000);
3633 win_enable |= (1 << i);
3636 mvpp2_write(priv, MVPP2_BASE_ADDR_ENABLE, win_enable);
3639 /* Initialize Rx FIFO's */
3640 static void mvpp2_rx_fifo_init(struct mvpp2 *priv)
3644 for (port = 0; port < MVPP2_MAX_PORTS; port++) {
3645 mvpp2_write(priv, MVPP2_RX_DATA_FIFO_SIZE_REG(port),
3646 MVPP2_RX_FIFO_PORT_DATA_SIZE);
3647 mvpp2_write(priv, MVPP2_RX_ATTR_FIFO_SIZE_REG(port),
3648 MVPP2_RX_FIFO_PORT_ATTR_SIZE);
3651 mvpp2_write(priv, MVPP2_RX_MIN_PKT_SIZE_REG,
3652 MVPP2_RX_FIFO_PORT_MIN_PKT);
3653 mvpp2_write(priv, MVPP2_RX_FIFO_INIT_REG, 0x1);
3656 /* Initialize network controller common part HW */
3657 static int mvpp2_init(struct udevice *dev, struct mvpp2 *priv)
3659 const struct mbus_dram_target_info *dram_target_info;
3663 /* Checks for hardware constraints (U-Boot uses only one rxq) */
3664 if ((rxq_number > MVPP2_MAX_RXQ) || (txq_number > MVPP2_MAX_TXQ)) {
3665 dev_err(&pdev->dev, "invalid queue size parameter\n");
3669 /* MBUS windows configuration */
3670 dram_target_info = mvebu_mbus_dram_info();
3671 if (dram_target_info)
3672 mvpp2_conf_mbus_windows(dram_target_info, priv);
3674 /* Disable HW PHY polling */
3675 val = readl(priv->lms_base + MVPP2_PHY_AN_CFG0_REG);
3676 val |= MVPP2_PHY_AN_STOP_SMI0_MASK;
3677 writel(val, priv->lms_base + MVPP2_PHY_AN_CFG0_REG);
3679 /* Allocate and initialize aggregated TXQs */
3680 priv->aggr_txqs = devm_kcalloc(dev, num_present_cpus(),
3681 sizeof(struct mvpp2_tx_queue),
3683 if (!priv->aggr_txqs)
3686 for_each_present_cpu(i) {
3687 priv->aggr_txqs[i].id = i;
3688 priv->aggr_txqs[i].size = MVPP2_AGGR_TXQ_SIZE;
3689 err = mvpp2_aggr_txq_init(dev, &priv->aggr_txqs[i],
3690 MVPP2_AGGR_TXQ_SIZE, i, priv);
3696 mvpp2_rx_fifo_init(priv);
3698 /* Reset Rx queue group interrupt configuration */
3699 for (i = 0; i < MVPP2_MAX_PORTS; i++)
3700 mvpp2_write(priv, MVPP2_ISR_RXQ_GROUP_REG(i),
3703 writel(MVPP2_EXT_GLOBAL_CTRL_DEFAULT,
3704 priv->lms_base + MVPP2_MNG_EXTENDED_GLOBAL_CTRL_REG);
3706 /* Allow cache snoop when transmiting packets */
3707 mvpp2_write(priv, MVPP2_TX_SNOOP_REG, 0x1);
3709 /* Buffer Manager initialization */
3710 err = mvpp2_bm_init(dev, priv);
3714 /* Parser default initialization */
3715 err = mvpp2_prs_default_init(dev, priv);
3719 /* Classifier default initialization */
3720 mvpp2_cls_init(priv);
3725 /* SMI / MDIO functions */
3727 static int smi_wait_ready(struct mvpp2 *priv)
3729 u32 timeout = MVPP2_SMI_TIMEOUT;
3732 /* wait till the SMI is not busy */
3734 /* read smi register */
3735 smi_reg = readl(priv->lms_base + MVPP2_SMI);
3736 if (timeout-- == 0) {
3737 printf("Error: SMI busy timeout\n");
3740 } while (smi_reg & MVPP2_SMI_BUSY);
3746 * mpp2_mdio_read - miiphy_read callback function.
3748 * Returns 16bit phy register value, or 0xffff on error
3750 static int mpp2_mdio_read(struct mii_dev *bus, int addr, int devad, int reg)
3752 struct mvpp2 *priv = bus->priv;
3756 /* check parameters */
3757 if (addr > MVPP2_PHY_ADDR_MASK) {
3758 printf("Error: Invalid PHY address %d\n", addr);
3762 if (reg > MVPP2_PHY_REG_MASK) {
3763 printf("Err: Invalid register offset %d\n", reg);
3767 /* wait till the SMI is not busy */
3768 if (smi_wait_ready(priv) < 0)
3771 /* fill the phy address and regiser offset and read opcode */
3772 smi_reg = (addr << MVPP2_SMI_DEV_ADDR_OFFS)
3773 | (reg << MVPP2_SMI_REG_ADDR_OFFS)
3774 | MVPP2_SMI_OPCODE_READ;
3776 /* write the smi register */
3777 writel(smi_reg, priv->lms_base + MVPP2_SMI);
3779 /* wait till read value is ready */
3780 timeout = MVPP2_SMI_TIMEOUT;
3783 /* read smi register */
3784 smi_reg = readl(priv->lms_base + MVPP2_SMI);
3785 if (timeout-- == 0) {
3786 printf("Err: SMI read ready timeout\n");
3789 } while (!(smi_reg & MVPP2_SMI_READ_VALID));
3791 /* Wait for the data to update in the SMI register */
3792 for (timeout = 0; timeout < MVPP2_SMI_TIMEOUT; timeout++)
3795 return readl(priv->lms_base + MVPP2_SMI) & MVPP2_SMI_DATA_MASK;
3799 * mpp2_mdio_write - miiphy_write callback function.
3801 * Returns 0 if write succeed, -EINVAL on bad parameters
3804 static int mpp2_mdio_write(struct mii_dev *bus, int addr, int devad, int reg,
3807 struct mvpp2 *priv = bus->priv;
3810 /* check parameters */
3811 if (addr > MVPP2_PHY_ADDR_MASK) {
3812 printf("Error: Invalid PHY address %d\n", addr);
3816 if (reg > MVPP2_PHY_REG_MASK) {
3817 printf("Err: Invalid register offset %d\n", reg);
3821 /* wait till the SMI is not busy */
3822 if (smi_wait_ready(priv) < 0)
3825 /* fill the phy addr and reg offset and write opcode and data */
3826 smi_reg = value << MVPP2_SMI_DATA_OFFS;
3827 smi_reg |= (addr << MVPP2_SMI_DEV_ADDR_OFFS)
3828 | (reg << MVPP2_SMI_REG_ADDR_OFFS);
3829 smi_reg &= ~MVPP2_SMI_OPCODE_READ;
3831 /* write the smi register */
3832 writel(smi_reg, priv->lms_base + MVPP2_SMI);
3837 static int mvpp2_recv(struct udevice *dev, int flags, uchar **packetp)
3839 struct mvpp2_port *port = dev_get_priv(dev);
3840 struct mvpp2_rx_desc *rx_desc;
3841 struct mvpp2_bm_pool *bm_pool;
3842 dma_addr_t dma_addr;
3844 int pool, rx_bytes, err;
3846 struct mvpp2_rx_queue *rxq;
3847 u32 cause_rx_tx, cause_rx, cause_misc;
3850 cause_rx_tx = mvpp2_read(port->priv,
3851 MVPP2_ISR_RX_TX_CAUSE_REG(port->id));
3852 cause_rx_tx &= ~MVPP2_CAUSE_TXQ_OCCUP_DESC_ALL_MASK;
3853 cause_misc = cause_rx_tx & MVPP2_CAUSE_MISC_SUM_MASK;
3854 if (!cause_rx_tx && !cause_misc)
3857 cause_rx = cause_rx_tx & MVPP2_CAUSE_RXQ_OCCUP_DESC_ALL_MASK;
3859 /* Process RX packets */
3860 cause_rx |= port->pending_cause_rx;
3861 rxq = mvpp2_get_rx_queue(port, cause_rx);
3863 /* Get number of received packets and clamp the to-do */
3864 rx_received = mvpp2_rxq_received(port, rxq->id);
3866 /* Return if no packets are received */
3870 rx_desc = mvpp2_rxq_next_desc_get(rxq);
3871 rx_status = rx_desc->status;
3872 rx_bytes = rx_desc->data_size - MVPP2_MH_SIZE;
3873 dma_addr = rx_desc->buf_dma_addr;
3875 bm = mvpp2_bm_cookie_build(rx_desc);
3876 pool = mvpp2_bm_cookie_pool_get(bm);
3877 bm_pool = &port->priv->bm_pools[pool];
3879 /* In case of an error, release the requested buffer pointer
3880 * to the Buffer Manager. This request process is controlled
3881 * by the hardware, and the information about the buffer is
3882 * comprised by the RX descriptor.
3884 if (rx_status & MVPP2_RXD_ERR_SUMMARY) {
3885 mvpp2_rx_error(port, rx_desc);
3886 /* Return the buffer to the pool */
3887 mvpp2_pool_refill(port, bm, rx_desc->buf_dma_addr,
3888 rx_desc->buf_cookie);
3892 err = mvpp2_rx_refill(port, bm_pool, bm, dma_addr);
3894 netdev_err(port->dev, "failed to refill BM pools\n");
3898 /* Update Rx queue management counters */
3900 mvpp2_rxq_status_update(port, rxq->id, 1, 1);
3902 /* give packet to stack - skip on first n bytes */
3903 data = (u8 *)dma_addr + 2 + 32;
3909 * No cache invalidation needed here, since the rx_buffer's are
3910 * located in a uncached memory region
3918 static void mvpp2_txq_drain(struct mvpp2_port *port, struct mvpp2_tx_queue *txq,
3923 mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
3924 val = mvpp2_read(port->priv, MVPP2_TXQ_PREF_BUF_REG);
3926 val |= MVPP2_TXQ_DRAIN_EN_MASK;
3928 val &= ~MVPP2_TXQ_DRAIN_EN_MASK;
3929 mvpp2_write(port->priv, MVPP2_TXQ_PREF_BUF_REG, val);
3932 static int mvpp2_send(struct udevice *dev, void *packet, int length)
3934 struct mvpp2_port *port = dev_get_priv(dev);
3935 struct mvpp2_tx_queue *txq, *aggr_txq;
3936 struct mvpp2_tx_desc *tx_desc;
3940 txq = port->txqs[0];
3941 aggr_txq = &port->priv->aggr_txqs[smp_processor_id()];
3943 /* Get a descriptor for the first part of the packet */
3944 tx_desc = mvpp2_txq_next_desc_get(aggr_txq);
3945 tx_desc->phys_txq = txq->id;
3946 tx_desc->data_size = length;
3947 tx_desc->packet_offset = (unsigned long)packet & MVPP2_TX_DESC_ALIGN;
3948 tx_desc->buf_dma_addr = (unsigned long)packet & ~MVPP2_TX_DESC_ALIGN;
3949 /* First and Last descriptor */
3950 tx_desc->command = MVPP2_TXD_L4_CSUM_NOT | MVPP2_TXD_IP_CSUM_DISABLE
3951 | MVPP2_TXD_F_DESC | MVPP2_TXD_L_DESC;
3954 flush_dcache_range((unsigned long)packet,
3955 (unsigned long)packet + ALIGN(length, PKTALIGN));
3957 /* Enable transmit */
3959 mvpp2_aggr_txq_pend_desc_add(port, 1);
3961 mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
3965 if (timeout++ > 10000) {
3966 printf("timeout: packet not sent from aggregated to phys TXQ\n");
3969 tx_done = mvpp2_txq_pend_desc_num_get(port, txq);
3972 /* Enable TXQ drain */
3973 mvpp2_txq_drain(port, txq, 1);
3977 if (timeout++ > 10000) {
3978 printf("timeout: packet not sent\n");
3981 tx_done = mvpp2_txq_sent_desc_proc(port, txq);
3984 /* Disable TXQ drain */
3985 mvpp2_txq_drain(port, txq, 0);
3990 static int mvpp2_start(struct udevice *dev)
3992 struct eth_pdata *pdata = dev_get_platdata(dev);
3993 struct mvpp2_port *port = dev_get_priv(dev);
3995 /* Load current MAC address */
3996 memcpy(port->dev_addr, pdata->enetaddr, ETH_ALEN);
3998 /* Reconfigure parser accept the original MAC address */
3999 mvpp2_prs_update_mac_da(port, port->dev_addr);
4001 mvpp2_port_power_up(port);
4003 mvpp2_open(dev, port);
4008 static void mvpp2_stop(struct udevice *dev)
4010 struct mvpp2_port *port = dev_get_priv(dev);
4012 mvpp2_stop_dev(port);
4013 mvpp2_cleanup_rxqs(port);
4014 mvpp2_cleanup_txqs(port);
4017 static int mvpp2_probe(struct udevice *dev)
4019 struct mvpp2_port *port = dev_get_priv(dev);
4020 struct mvpp2 *priv = dev_get_priv(dev->parent);
4023 /* Initialize network controller */
4024 err = mvpp2_init(dev, priv);
4026 dev_err(&pdev->dev, "failed to initialize controller\n");
4030 return mvpp2_port_probe(dev, port, dev_of_offset(dev), priv,
4031 &buffer_loc.first_rxq);
4034 static const struct eth_ops mvpp2_ops = {
4035 .start = mvpp2_start,
4041 static struct driver mvpp2_driver = {
4044 .probe = mvpp2_probe,
4046 .priv_auto_alloc_size = sizeof(struct mvpp2_port),
4047 .platdata_auto_alloc_size = sizeof(struct eth_pdata),
4051 * Use a MISC device to bind the n instances (child nodes) of the
4052 * network base controller in UCLASS_ETH.
4054 static int mvpp2_base_probe(struct udevice *dev)
4056 struct mvpp2 *priv = dev_get_priv(dev);
4057 struct mii_dev *bus;
4063 * U-Boot special buffer handling:
4065 * Allocate buffer area for descs and rx_buffers. This is only
4066 * done once for all interfaces. As only one interface can
4067 * be active. Make this area DMA-safe by disabling the D-cache
4070 /* Align buffer area for descs and rx_buffers to 1MiB */
4071 bd_space = memalign(1 << MMU_SECTION_SHIFT, BD_SPACE);
4072 mmu_set_region_dcache_behaviour((unsigned long)bd_space,
4073 BD_SPACE, DCACHE_OFF);
4075 buffer_loc.aggr_tx_descs = (struct mvpp2_tx_desc *)bd_space;
4076 size += MVPP2_AGGR_TXQ_SIZE * MVPP2_DESC_ALIGNED_SIZE;
4078 buffer_loc.tx_descs =
4079 (struct mvpp2_tx_desc *)((unsigned long)bd_space + size);
4080 size += MVPP2_MAX_TXD * MVPP2_DESC_ALIGNED_SIZE;
4082 buffer_loc.rx_descs =
4083 (struct mvpp2_rx_desc *)((unsigned long)bd_space + size);
4084 size += MVPP2_MAX_RXD * MVPP2_DESC_ALIGNED_SIZE;
4086 for (i = 0; i < MVPP2_BM_POOLS_NUM; i++) {
4087 buffer_loc.bm_pool[i] =
4088 (unsigned long *)((unsigned long)bd_space + size);
4089 size += MVPP2_BM_POOL_SIZE_MAX * sizeof(u32);
4092 for (i = 0; i < MVPP2_BM_LONG_BUF_NUM; i++) {
4093 buffer_loc.rx_buffer[i] =
4094 (unsigned long *)((unsigned long)bd_space + size);
4095 size += RX_BUFFER_SIZE;
4098 /* Save base addresses for later use */
4099 priv->base = (void *)dev_get_addr_index(dev, 0);
4100 if (IS_ERR(priv->base))
4101 return PTR_ERR(priv->base);
4103 priv->lms_base = (void *)dev_get_addr_index(dev, 1);
4104 if (IS_ERR(priv->lms_base))
4105 return PTR_ERR(priv->lms_base);
4107 /* Finally create and register the MDIO bus driver */
4110 printf("Failed to allocate MDIO bus\n");
4114 bus->read = mpp2_mdio_read;
4115 bus->write = mpp2_mdio_write;
4116 snprintf(bus->name, sizeof(bus->name), dev->name);
4117 bus->priv = (void *)priv;
4120 return mdio_register(bus);
4123 static int mvpp2_base_bind(struct udevice *parent)
4125 const void *blob = gd->fdt_blob;
4126 int node = dev_of_offset(parent);
4127 struct uclass_driver *drv;
4128 struct udevice *dev;
4129 struct eth_pdata *plat;
4134 /* Lookup eth driver */
4135 drv = lists_uclass_lookup(UCLASS_ETH);
4137 puts("Cannot find eth driver\n");
4141 fdt_for_each_subnode(subnode, blob, node) {
4142 /* Skip disabled ports */
4143 if (!fdtdec_get_is_enabled(blob, subnode))
4146 plat = calloc(1, sizeof(*plat));
4150 id = fdtdec_get_int(blob, subnode, "port-id", -1);
4152 name = calloc(1, 16);
4153 sprintf(name, "mvpp2-%d", id);
4155 /* Create child device UCLASS_ETH and bind it */
4156 device_bind(parent, &mvpp2_driver, name, plat, subnode, &dev);
4157 dev_set_of_offset(dev, subnode);
4163 static const struct udevice_id mvpp2_ids[] = {
4164 { .compatible = "marvell,armada-375-pp2" },
4168 U_BOOT_DRIVER(mvpp2_base) = {
4169 .name = "mvpp2_base",
4171 .of_match = mvpp2_ids,
4172 .bind = mvpp2_base_bind,
4173 .probe = mvpp2_base_probe,
4174 .priv_auto_alloc_size = sizeof(struct mvpp2),