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;
711 enum { MVPP21, MVPP22 } hw_version;
716 struct mvpp2_pcpu_stats {
730 /* Per-port registers' base address */
733 struct mvpp2_rx_queue **rxqs;
734 struct mvpp2_tx_queue **txqs;
738 u32 pending_cause_rx;
740 /* Per-CPU port control */
741 struct mvpp2_port_pcpu __percpu *pcpu;
748 struct mvpp2_pcpu_stats __percpu *stats;
750 struct phy_device *phy_dev;
751 phy_interface_t phy_interface;
759 struct mvpp2_bm_pool *pool_long;
760 struct mvpp2_bm_pool *pool_short;
762 /* Index of first port's physical RXQ */
765 u8 dev_addr[ETH_ALEN];
768 /* The mvpp2_tx_desc and mvpp2_rx_desc structures describe the
769 * layout of the transmit and reception DMA descriptors, and their
770 * layout is therefore defined by the hardware design
773 #define MVPP2_TXD_L3_OFF_SHIFT 0
774 #define MVPP2_TXD_IP_HLEN_SHIFT 8
775 #define MVPP2_TXD_L4_CSUM_FRAG BIT(13)
776 #define MVPP2_TXD_L4_CSUM_NOT BIT(14)
777 #define MVPP2_TXD_IP_CSUM_DISABLE BIT(15)
778 #define MVPP2_TXD_PADDING_DISABLE BIT(23)
779 #define MVPP2_TXD_L4_UDP BIT(24)
780 #define MVPP2_TXD_L3_IP6 BIT(26)
781 #define MVPP2_TXD_L_DESC BIT(28)
782 #define MVPP2_TXD_F_DESC BIT(29)
784 #define MVPP2_RXD_ERR_SUMMARY BIT(15)
785 #define MVPP2_RXD_ERR_CODE_MASK (BIT(13) | BIT(14))
786 #define MVPP2_RXD_ERR_CRC 0x0
787 #define MVPP2_RXD_ERR_OVERRUN BIT(13)
788 #define MVPP2_RXD_ERR_RESOURCE (BIT(13) | BIT(14))
789 #define MVPP2_RXD_BM_POOL_ID_OFFS 16
790 #define MVPP2_RXD_BM_POOL_ID_MASK (BIT(16) | BIT(17) | BIT(18))
791 #define MVPP2_RXD_HWF_SYNC BIT(21)
792 #define MVPP2_RXD_L4_CSUM_OK BIT(22)
793 #define MVPP2_RXD_IP4_HEADER_ERR BIT(24)
794 #define MVPP2_RXD_L4_TCP BIT(25)
795 #define MVPP2_RXD_L4_UDP BIT(26)
796 #define MVPP2_RXD_L3_IP4 BIT(28)
797 #define MVPP2_RXD_L3_IP6 BIT(30)
798 #define MVPP2_RXD_BUF_HDR BIT(31)
800 /* HW TX descriptor for PPv2.1 */
801 struct mvpp21_tx_desc {
802 u32 command; /* Options used by HW for packet transmitting.*/
803 u8 packet_offset; /* the offset from the buffer beginning */
804 u8 phys_txq; /* destination queue ID */
805 u16 data_size; /* data size of transmitted packet in bytes */
806 u32 buf_dma_addr; /* physical addr of transmitted buffer */
807 u32 buf_cookie; /* cookie for access to TX buffer in tx path */
808 u32 reserved1[3]; /* hw_cmd (for future use, BM, PON, PNC) */
809 u32 reserved2; /* reserved (for future use) */
812 /* HW RX descriptor for PPv2.1 */
813 struct mvpp21_rx_desc {
814 u32 status; /* info about received packet */
815 u16 reserved1; /* parser_info (for future use, PnC) */
816 u16 data_size; /* size of received packet in bytes */
817 u32 buf_dma_addr; /* physical address of the buffer */
818 u32 buf_cookie; /* cookie for access to RX buffer in rx path */
819 u16 reserved2; /* gem_port_id (for future use, PON) */
820 u16 reserved3; /* csum_l4 (for future use, PnC) */
821 u8 reserved4; /* bm_qset (for future use, BM) */
823 u16 reserved6; /* classify_info (for future use, PnC) */
824 u32 reserved7; /* flow_id (for future use, PnC) */
828 /* Opaque type used by the driver to manipulate the HW TX and RX
831 struct mvpp2_tx_desc {
833 struct mvpp21_tx_desc pp21;
837 struct mvpp2_rx_desc {
839 struct mvpp21_rx_desc pp21;
843 /* Per-CPU Tx queue control */
844 struct mvpp2_txq_pcpu {
847 /* Number of Tx DMA descriptors in the descriptor ring */
850 /* Number of currently used Tx DMA descriptor in the
855 /* Number of Tx DMA descriptors reserved for each CPU */
858 /* Index of last TX DMA descriptor that was inserted */
861 /* Index of the TX DMA descriptor to be cleaned up */
865 struct mvpp2_tx_queue {
866 /* Physical number of this Tx queue */
869 /* Logical number of this Tx queue */
872 /* Number of Tx DMA descriptors in the descriptor ring */
875 /* Number of currently used Tx DMA descriptor in the descriptor ring */
878 /* Per-CPU control of physical Tx queues */
879 struct mvpp2_txq_pcpu __percpu *pcpu;
883 /* Virtual address of thex Tx DMA descriptors array */
884 struct mvpp2_tx_desc *descs;
886 /* DMA address of the Tx DMA descriptors array */
887 dma_addr_t descs_dma;
889 /* Index of the last Tx DMA descriptor */
892 /* Index of the next Tx DMA descriptor to process */
893 int next_desc_to_proc;
896 struct mvpp2_rx_queue {
897 /* RX queue number, in the range 0-31 for physical RXQs */
900 /* Num of rx descriptors in the rx descriptor ring */
906 /* Virtual address of the RX DMA descriptors array */
907 struct mvpp2_rx_desc *descs;
909 /* DMA address of the RX DMA descriptors array */
910 dma_addr_t descs_dma;
912 /* Index of the last RX DMA descriptor */
915 /* Index of the next RX DMA descriptor to process */
916 int next_desc_to_proc;
918 /* ID of port to which physical RXQ is mapped */
921 /* Port's logic RXQ number to which physical RXQ is mapped */
925 union mvpp2_prs_tcam_entry {
926 u32 word[MVPP2_PRS_TCAM_WORDS];
927 u8 byte[MVPP2_PRS_TCAM_WORDS * 4];
930 union mvpp2_prs_sram_entry {
931 u32 word[MVPP2_PRS_SRAM_WORDS];
932 u8 byte[MVPP2_PRS_SRAM_WORDS * 4];
935 struct mvpp2_prs_entry {
937 union mvpp2_prs_tcam_entry tcam;
938 union mvpp2_prs_sram_entry sram;
941 struct mvpp2_prs_shadow {
948 /* User defined offset */
956 struct mvpp2_cls_flow_entry {
958 u32 data[MVPP2_CLS_FLOWS_TBL_DATA_WORDS];
961 struct mvpp2_cls_lookup_entry {
967 struct mvpp2_bm_pool {
968 /* Pool number in the range 0-7 */
970 enum mvpp2_bm_type type;
972 /* Buffer Pointers Pool External (BPPE) size */
974 /* Number of buffers for this pool */
976 /* Pool buffer size */
981 /* BPPE virtual base address */
982 unsigned long *virt_addr;
983 /* BPPE DMA base address */
986 /* Ports using BM pool */
989 /* Occupied buffers indicator */
993 /* Static declaractions */
995 /* Number of RXQs used by single port */
996 static int rxq_number = MVPP2_DEFAULT_RXQ;
997 /* Number of TXQs used by single port */
998 static int txq_number = MVPP2_DEFAULT_TXQ;
1000 #define MVPP2_DRIVER_NAME "mvpp2"
1001 #define MVPP2_DRIVER_VERSION "1.0"
1004 * U-Boot internal data, mostly uncached buffers for descriptors and data
1006 struct buffer_location {
1007 struct mvpp2_tx_desc *aggr_tx_descs;
1008 struct mvpp2_tx_desc *tx_descs;
1009 struct mvpp2_rx_desc *rx_descs;
1010 unsigned long *bm_pool[MVPP2_BM_POOLS_NUM];
1011 unsigned long *rx_buffer[MVPP2_BM_LONG_BUF_NUM];
1016 * All 4 interfaces use the same global buffer, since only one interface
1017 * can be enabled at once
1019 static struct buffer_location buffer_loc;
1022 * Page table entries are set to 1MB, or multiples of 1MB
1023 * (not < 1MB). driver uses less bd's so use 1MB bdspace.
1025 #define BD_SPACE (1 << 20)
1027 /* Utility/helper methods */
1029 static void mvpp2_write(struct mvpp2 *priv, u32 offset, u32 data)
1031 writel(data, priv->base + offset);
1034 static u32 mvpp2_read(struct mvpp2 *priv, u32 offset)
1036 return readl(priv->base + offset);
1039 static void mvpp2_txdesc_dma_addr_set(struct mvpp2_port *port,
1040 struct mvpp2_tx_desc *tx_desc,
1041 dma_addr_t dma_addr)
1043 tx_desc->pp21.buf_dma_addr = dma_addr;
1046 static void mvpp2_txdesc_size_set(struct mvpp2_port *port,
1047 struct mvpp2_tx_desc *tx_desc,
1050 tx_desc->pp21.data_size = size;
1053 static void mvpp2_txdesc_txq_set(struct mvpp2_port *port,
1054 struct mvpp2_tx_desc *tx_desc,
1057 tx_desc->pp21.phys_txq = txq;
1060 static void mvpp2_txdesc_cmd_set(struct mvpp2_port *port,
1061 struct mvpp2_tx_desc *tx_desc,
1062 unsigned int command)
1064 tx_desc->pp21.command = command;
1067 static void mvpp2_txdesc_offset_set(struct mvpp2_port *port,
1068 struct mvpp2_tx_desc *tx_desc,
1069 unsigned int offset)
1071 tx_desc->pp21.packet_offset = offset;
1074 static dma_addr_t mvpp2_rxdesc_dma_addr_get(struct mvpp2_port *port,
1075 struct mvpp2_rx_desc *rx_desc)
1077 return rx_desc->pp21.buf_dma_addr;
1080 static unsigned long mvpp2_rxdesc_cookie_get(struct mvpp2_port *port,
1081 struct mvpp2_rx_desc *rx_desc)
1083 return rx_desc->pp21.buf_cookie;
1086 static size_t mvpp2_rxdesc_size_get(struct mvpp2_port *port,
1087 struct mvpp2_rx_desc *rx_desc)
1089 return rx_desc->pp21.data_size;
1092 static u32 mvpp2_rxdesc_status_get(struct mvpp2_port *port,
1093 struct mvpp2_rx_desc *rx_desc)
1095 return rx_desc->pp21.status;
1098 static void mvpp2_txq_inc_get(struct mvpp2_txq_pcpu *txq_pcpu)
1100 txq_pcpu->txq_get_index++;
1101 if (txq_pcpu->txq_get_index == txq_pcpu->size)
1102 txq_pcpu->txq_get_index = 0;
1105 /* Get number of physical egress port */
1106 static inline int mvpp2_egress_port(struct mvpp2_port *port)
1108 return MVPP2_MAX_TCONT + port->id;
1111 /* Get number of physical TXQ */
1112 static inline int mvpp2_txq_phys(int port, int txq)
1114 return (MVPP2_MAX_TCONT + port) * MVPP2_MAX_TXQ + txq;
1117 /* Parser configuration routines */
1119 /* Update parser tcam and sram hw entries */
1120 static int mvpp2_prs_hw_write(struct mvpp2 *priv, struct mvpp2_prs_entry *pe)
1124 if (pe->index > MVPP2_PRS_TCAM_SRAM_SIZE - 1)
1127 /* Clear entry invalidation bit */
1128 pe->tcam.word[MVPP2_PRS_TCAM_INV_WORD] &= ~MVPP2_PRS_TCAM_INV_MASK;
1130 /* Write tcam index - indirect access */
1131 mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, pe->index);
1132 for (i = 0; i < MVPP2_PRS_TCAM_WORDS; i++)
1133 mvpp2_write(priv, MVPP2_PRS_TCAM_DATA_REG(i), pe->tcam.word[i]);
1135 /* Write sram index - indirect access */
1136 mvpp2_write(priv, MVPP2_PRS_SRAM_IDX_REG, pe->index);
1137 for (i = 0; i < MVPP2_PRS_SRAM_WORDS; i++)
1138 mvpp2_write(priv, MVPP2_PRS_SRAM_DATA_REG(i), pe->sram.word[i]);
1143 /* Read tcam entry from hw */
1144 static int mvpp2_prs_hw_read(struct mvpp2 *priv, struct mvpp2_prs_entry *pe)
1148 if (pe->index > MVPP2_PRS_TCAM_SRAM_SIZE - 1)
1151 /* Write tcam index - indirect access */
1152 mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, pe->index);
1154 pe->tcam.word[MVPP2_PRS_TCAM_INV_WORD] = mvpp2_read(priv,
1155 MVPP2_PRS_TCAM_DATA_REG(MVPP2_PRS_TCAM_INV_WORD));
1156 if (pe->tcam.word[MVPP2_PRS_TCAM_INV_WORD] & MVPP2_PRS_TCAM_INV_MASK)
1157 return MVPP2_PRS_TCAM_ENTRY_INVALID;
1159 for (i = 0; i < MVPP2_PRS_TCAM_WORDS; i++)
1160 pe->tcam.word[i] = mvpp2_read(priv, MVPP2_PRS_TCAM_DATA_REG(i));
1162 /* Write sram index - indirect access */
1163 mvpp2_write(priv, MVPP2_PRS_SRAM_IDX_REG, pe->index);
1164 for (i = 0; i < MVPP2_PRS_SRAM_WORDS; i++)
1165 pe->sram.word[i] = mvpp2_read(priv, MVPP2_PRS_SRAM_DATA_REG(i));
1170 /* Invalidate tcam hw entry */
1171 static void mvpp2_prs_hw_inv(struct mvpp2 *priv, int index)
1173 /* Write index - indirect access */
1174 mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, index);
1175 mvpp2_write(priv, MVPP2_PRS_TCAM_DATA_REG(MVPP2_PRS_TCAM_INV_WORD),
1176 MVPP2_PRS_TCAM_INV_MASK);
1179 /* Enable shadow table entry and set its lookup ID */
1180 static void mvpp2_prs_shadow_set(struct mvpp2 *priv, int index, int lu)
1182 priv->prs_shadow[index].valid = true;
1183 priv->prs_shadow[index].lu = lu;
1186 /* Update ri fields in shadow table entry */
1187 static void mvpp2_prs_shadow_ri_set(struct mvpp2 *priv, int index,
1188 unsigned int ri, unsigned int ri_mask)
1190 priv->prs_shadow[index].ri_mask = ri_mask;
1191 priv->prs_shadow[index].ri = ri;
1194 /* Update lookup field in tcam sw entry */
1195 static void mvpp2_prs_tcam_lu_set(struct mvpp2_prs_entry *pe, unsigned int lu)
1197 int enable_off = MVPP2_PRS_TCAM_EN_OFFS(MVPP2_PRS_TCAM_LU_BYTE);
1199 pe->tcam.byte[MVPP2_PRS_TCAM_LU_BYTE] = lu;
1200 pe->tcam.byte[enable_off] = MVPP2_PRS_LU_MASK;
1203 /* Update mask for single port in tcam sw entry */
1204 static void mvpp2_prs_tcam_port_set(struct mvpp2_prs_entry *pe,
1205 unsigned int port, bool add)
1207 int enable_off = MVPP2_PRS_TCAM_EN_OFFS(MVPP2_PRS_TCAM_PORT_BYTE);
1210 pe->tcam.byte[enable_off] &= ~(1 << port);
1212 pe->tcam.byte[enable_off] |= 1 << port;
1215 /* Update port map in tcam sw entry */
1216 static void mvpp2_prs_tcam_port_map_set(struct mvpp2_prs_entry *pe,
1219 unsigned char port_mask = MVPP2_PRS_PORT_MASK;
1220 int enable_off = MVPP2_PRS_TCAM_EN_OFFS(MVPP2_PRS_TCAM_PORT_BYTE);
1222 pe->tcam.byte[MVPP2_PRS_TCAM_PORT_BYTE] = 0;
1223 pe->tcam.byte[enable_off] &= ~port_mask;
1224 pe->tcam.byte[enable_off] |= ~ports & MVPP2_PRS_PORT_MASK;
1227 /* Obtain port map from tcam sw entry */
1228 static unsigned int mvpp2_prs_tcam_port_map_get(struct mvpp2_prs_entry *pe)
1230 int enable_off = MVPP2_PRS_TCAM_EN_OFFS(MVPP2_PRS_TCAM_PORT_BYTE);
1232 return ~(pe->tcam.byte[enable_off]) & MVPP2_PRS_PORT_MASK;
1235 /* Set byte of data and its enable bits in tcam sw entry */
1236 static void mvpp2_prs_tcam_data_byte_set(struct mvpp2_prs_entry *pe,
1237 unsigned int offs, unsigned char byte,
1238 unsigned char enable)
1240 pe->tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE(offs)] = byte;
1241 pe->tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE_EN(offs)] = enable;
1244 /* Get byte of data and its enable bits from tcam sw entry */
1245 static void mvpp2_prs_tcam_data_byte_get(struct mvpp2_prs_entry *pe,
1246 unsigned int offs, unsigned char *byte,
1247 unsigned char *enable)
1249 *byte = pe->tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE(offs)];
1250 *enable = pe->tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE_EN(offs)];
1253 /* Set ethertype in tcam sw entry */
1254 static void mvpp2_prs_match_etype(struct mvpp2_prs_entry *pe, int offset,
1255 unsigned short ethertype)
1257 mvpp2_prs_tcam_data_byte_set(pe, offset + 0, ethertype >> 8, 0xff);
1258 mvpp2_prs_tcam_data_byte_set(pe, offset + 1, ethertype & 0xff, 0xff);
1261 /* Set bits in sram sw entry */
1262 static void mvpp2_prs_sram_bits_set(struct mvpp2_prs_entry *pe, int bit_num,
1265 pe->sram.byte[MVPP2_BIT_TO_BYTE(bit_num)] |= (val << (bit_num % 8));
1268 /* Clear bits in sram sw entry */
1269 static void mvpp2_prs_sram_bits_clear(struct mvpp2_prs_entry *pe, int bit_num,
1272 pe->sram.byte[MVPP2_BIT_TO_BYTE(bit_num)] &= ~(val << (bit_num % 8));
1275 /* Update ri bits in sram sw entry */
1276 static void mvpp2_prs_sram_ri_update(struct mvpp2_prs_entry *pe,
1277 unsigned int bits, unsigned int mask)
1281 for (i = 0; i < MVPP2_PRS_SRAM_RI_CTRL_BITS; i++) {
1282 int ri_off = MVPP2_PRS_SRAM_RI_OFFS;
1284 if (!(mask & BIT(i)))
1288 mvpp2_prs_sram_bits_set(pe, ri_off + i, 1);
1290 mvpp2_prs_sram_bits_clear(pe, ri_off + i, 1);
1292 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_RI_CTRL_OFFS + i, 1);
1296 /* Update ai bits in sram sw entry */
1297 static void mvpp2_prs_sram_ai_update(struct mvpp2_prs_entry *pe,
1298 unsigned int bits, unsigned int mask)
1301 int ai_off = MVPP2_PRS_SRAM_AI_OFFS;
1303 for (i = 0; i < MVPP2_PRS_SRAM_AI_CTRL_BITS; i++) {
1305 if (!(mask & BIT(i)))
1309 mvpp2_prs_sram_bits_set(pe, ai_off + i, 1);
1311 mvpp2_prs_sram_bits_clear(pe, ai_off + i, 1);
1313 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_AI_CTRL_OFFS + i, 1);
1317 /* Read ai bits from sram sw entry */
1318 static int mvpp2_prs_sram_ai_get(struct mvpp2_prs_entry *pe)
1321 int ai_off = MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_AI_OFFS);
1322 int ai_en_off = ai_off + 1;
1323 int ai_shift = MVPP2_PRS_SRAM_AI_OFFS % 8;
1325 bits = (pe->sram.byte[ai_off] >> ai_shift) |
1326 (pe->sram.byte[ai_en_off] << (8 - ai_shift));
1331 /* In sram sw entry set lookup ID field of the tcam key to be used in the next
1334 static void mvpp2_prs_sram_next_lu_set(struct mvpp2_prs_entry *pe,
1337 int sram_next_off = MVPP2_PRS_SRAM_NEXT_LU_OFFS;
1339 mvpp2_prs_sram_bits_clear(pe, sram_next_off,
1340 MVPP2_PRS_SRAM_NEXT_LU_MASK);
1341 mvpp2_prs_sram_bits_set(pe, sram_next_off, lu);
1344 /* In the sram sw entry set sign and value of the next lookup offset
1345 * and the offset value generated to the classifier
1347 static void mvpp2_prs_sram_shift_set(struct mvpp2_prs_entry *pe, int shift,
1352 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_SHIFT_SIGN_BIT, 1);
1355 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_SHIFT_SIGN_BIT, 1);
1359 pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_SHIFT_OFFS)] =
1360 (unsigned char)shift;
1362 /* Reset and set operation */
1363 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_SHIFT_OFFS,
1364 MVPP2_PRS_SRAM_OP_SEL_SHIFT_MASK);
1365 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_OP_SEL_SHIFT_OFFS, op);
1367 /* Set base offset as current */
1368 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_BASE_OFFS, 1);
1371 /* In the sram sw entry set sign and value of the user defined offset
1372 * generated to the classifier
1374 static void mvpp2_prs_sram_offset_set(struct mvpp2_prs_entry *pe,
1375 unsigned int type, int offset,
1380 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_UDF_SIGN_BIT, 1);
1381 offset = 0 - offset;
1383 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_UDF_SIGN_BIT, 1);
1387 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_UDF_OFFS,
1388 MVPP2_PRS_SRAM_UDF_MASK);
1389 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_UDF_OFFS, offset);
1390 pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_UDF_OFFS +
1391 MVPP2_PRS_SRAM_UDF_BITS)] &=
1392 ~(MVPP2_PRS_SRAM_UDF_MASK >> (8 - (MVPP2_PRS_SRAM_UDF_OFFS % 8)));
1393 pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_UDF_OFFS +
1394 MVPP2_PRS_SRAM_UDF_BITS)] |=
1395 (offset >> (8 - (MVPP2_PRS_SRAM_UDF_OFFS % 8)));
1397 /* Set offset type */
1398 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_UDF_TYPE_OFFS,
1399 MVPP2_PRS_SRAM_UDF_TYPE_MASK);
1400 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_UDF_TYPE_OFFS, type);
1402 /* Set offset operation */
1403 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS,
1404 MVPP2_PRS_SRAM_OP_SEL_UDF_MASK);
1405 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS, op);
1407 pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS +
1408 MVPP2_PRS_SRAM_OP_SEL_UDF_BITS)] &=
1409 ~(MVPP2_PRS_SRAM_OP_SEL_UDF_MASK >>
1410 (8 - (MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS % 8)));
1412 pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS +
1413 MVPP2_PRS_SRAM_OP_SEL_UDF_BITS)] |=
1414 (op >> (8 - (MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS % 8)));
1416 /* Set base offset as current */
1417 mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_BASE_OFFS, 1);
1420 /* Find parser flow entry */
1421 static struct mvpp2_prs_entry *mvpp2_prs_flow_find(struct mvpp2 *priv, int flow)
1423 struct mvpp2_prs_entry *pe;
1426 pe = kzalloc(sizeof(*pe), GFP_KERNEL);
1429 mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_FLOWS);
1431 /* Go through the all entires with MVPP2_PRS_LU_FLOWS */
1432 for (tid = MVPP2_PRS_TCAM_SRAM_SIZE - 1; tid >= 0; tid--) {
1435 if (!priv->prs_shadow[tid].valid ||
1436 priv->prs_shadow[tid].lu != MVPP2_PRS_LU_FLOWS)
1440 mvpp2_prs_hw_read(priv, pe);
1441 bits = mvpp2_prs_sram_ai_get(pe);
1443 /* Sram store classification lookup ID in AI bits [5:0] */
1444 if ((bits & MVPP2_PRS_FLOW_ID_MASK) == flow)
1452 /* Return first free tcam index, seeking from start to end */
1453 static int mvpp2_prs_tcam_first_free(struct mvpp2 *priv, unsigned char start,
1461 if (end >= MVPP2_PRS_TCAM_SRAM_SIZE)
1462 end = MVPP2_PRS_TCAM_SRAM_SIZE - 1;
1464 for (tid = start; tid <= end; tid++) {
1465 if (!priv->prs_shadow[tid].valid)
1472 /* Enable/disable dropping all mac da's */
1473 static void mvpp2_prs_mac_drop_all_set(struct mvpp2 *priv, int port, bool add)
1475 struct mvpp2_prs_entry pe;
1477 if (priv->prs_shadow[MVPP2_PE_DROP_ALL].valid) {
1478 /* Entry exist - update port only */
1479 pe.index = MVPP2_PE_DROP_ALL;
1480 mvpp2_prs_hw_read(priv, &pe);
1482 /* Entry doesn't exist - create new */
1483 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1484 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC);
1485 pe.index = MVPP2_PE_DROP_ALL;
1487 /* Non-promiscuous mode for all ports - DROP unknown packets */
1488 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_DROP_MASK,
1489 MVPP2_PRS_RI_DROP_MASK);
1491 mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
1492 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
1494 /* Update shadow table */
1495 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC);
1497 /* Mask all ports */
1498 mvpp2_prs_tcam_port_map_set(&pe, 0);
1501 /* Update port mask */
1502 mvpp2_prs_tcam_port_set(&pe, port, add);
1504 mvpp2_prs_hw_write(priv, &pe);
1507 /* Set port to promiscuous mode */
1508 static void mvpp2_prs_mac_promisc_set(struct mvpp2 *priv, int port, bool add)
1510 struct mvpp2_prs_entry pe;
1512 /* Promiscuous mode - Accept unknown packets */
1514 if (priv->prs_shadow[MVPP2_PE_MAC_PROMISCUOUS].valid) {
1515 /* Entry exist - update port only */
1516 pe.index = MVPP2_PE_MAC_PROMISCUOUS;
1517 mvpp2_prs_hw_read(priv, &pe);
1519 /* Entry doesn't exist - create new */
1520 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1521 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC);
1522 pe.index = MVPP2_PE_MAC_PROMISCUOUS;
1524 /* Continue - set next lookup */
1525 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_DSA);
1527 /* Set result info bits */
1528 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L2_UCAST,
1529 MVPP2_PRS_RI_L2_CAST_MASK);
1531 /* Shift to ethertype */
1532 mvpp2_prs_sram_shift_set(&pe, 2 * ETH_ALEN,
1533 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
1535 /* Mask all ports */
1536 mvpp2_prs_tcam_port_map_set(&pe, 0);
1538 /* Update shadow table */
1539 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC);
1542 /* Update port mask */
1543 mvpp2_prs_tcam_port_set(&pe, port, add);
1545 mvpp2_prs_hw_write(priv, &pe);
1548 /* Accept multicast */
1549 static void mvpp2_prs_mac_multi_set(struct mvpp2 *priv, int port, int index,
1552 struct mvpp2_prs_entry pe;
1553 unsigned char da_mc;
1555 /* Ethernet multicast address first byte is
1556 * 0x01 for IPv4 and 0x33 for IPv6
1558 da_mc = (index == MVPP2_PE_MAC_MC_ALL) ? 0x01 : 0x33;
1560 if (priv->prs_shadow[index].valid) {
1561 /* Entry exist - update port only */
1563 mvpp2_prs_hw_read(priv, &pe);
1565 /* Entry doesn't exist - create new */
1566 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1567 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC);
1570 /* Continue - set next lookup */
1571 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_DSA);
1573 /* Set result info bits */
1574 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L2_MCAST,
1575 MVPP2_PRS_RI_L2_CAST_MASK);
1577 /* Update tcam entry data first byte */
1578 mvpp2_prs_tcam_data_byte_set(&pe, 0, da_mc, 0xff);
1580 /* Shift to ethertype */
1581 mvpp2_prs_sram_shift_set(&pe, 2 * ETH_ALEN,
1582 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
1584 /* Mask all ports */
1585 mvpp2_prs_tcam_port_map_set(&pe, 0);
1587 /* Update shadow table */
1588 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC);
1591 /* Update port mask */
1592 mvpp2_prs_tcam_port_set(&pe, port, add);
1594 mvpp2_prs_hw_write(priv, &pe);
1597 /* Parser per-port initialization */
1598 static void mvpp2_prs_hw_port_init(struct mvpp2 *priv, int port, int lu_first,
1599 int lu_max, int offset)
1604 val = mvpp2_read(priv, MVPP2_PRS_INIT_LOOKUP_REG);
1605 val &= ~MVPP2_PRS_PORT_LU_MASK(port);
1606 val |= MVPP2_PRS_PORT_LU_VAL(port, lu_first);
1607 mvpp2_write(priv, MVPP2_PRS_INIT_LOOKUP_REG, val);
1609 /* Set maximum number of loops for packet received from port */
1610 val = mvpp2_read(priv, MVPP2_PRS_MAX_LOOP_REG(port));
1611 val &= ~MVPP2_PRS_MAX_LOOP_MASK(port);
1612 val |= MVPP2_PRS_MAX_LOOP_VAL(port, lu_max);
1613 mvpp2_write(priv, MVPP2_PRS_MAX_LOOP_REG(port), val);
1615 /* Set initial offset for packet header extraction for the first
1618 val = mvpp2_read(priv, MVPP2_PRS_INIT_OFFS_REG(port));
1619 val &= ~MVPP2_PRS_INIT_OFF_MASK(port);
1620 val |= MVPP2_PRS_INIT_OFF_VAL(port, offset);
1621 mvpp2_write(priv, MVPP2_PRS_INIT_OFFS_REG(port), val);
1624 /* Default flow entries initialization for all ports */
1625 static void mvpp2_prs_def_flow_init(struct mvpp2 *priv)
1627 struct mvpp2_prs_entry pe;
1630 for (port = 0; port < MVPP2_MAX_PORTS; port++) {
1631 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1632 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
1633 pe.index = MVPP2_PE_FIRST_DEFAULT_FLOW - port;
1635 /* Mask all ports */
1636 mvpp2_prs_tcam_port_map_set(&pe, 0);
1639 mvpp2_prs_sram_ai_update(&pe, port, MVPP2_PRS_FLOW_ID_MASK);
1640 mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_DONE_BIT, 1);
1642 /* Update shadow table and hw entry */
1643 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_FLOWS);
1644 mvpp2_prs_hw_write(priv, &pe);
1648 /* Set default entry for Marvell Header field */
1649 static void mvpp2_prs_mh_init(struct mvpp2 *priv)
1651 struct mvpp2_prs_entry pe;
1653 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1655 pe.index = MVPP2_PE_MH_DEFAULT;
1656 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MH);
1657 mvpp2_prs_sram_shift_set(&pe, MVPP2_MH_SIZE,
1658 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
1659 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_MAC);
1661 /* Unmask all ports */
1662 mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
1664 /* Update shadow table and hw entry */
1665 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MH);
1666 mvpp2_prs_hw_write(priv, &pe);
1669 /* Set default entires (place holder) for promiscuous, non-promiscuous and
1670 * multicast MAC addresses
1672 static void mvpp2_prs_mac_init(struct mvpp2 *priv)
1674 struct mvpp2_prs_entry pe;
1676 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1678 /* Non-promiscuous mode for all ports - DROP unknown packets */
1679 pe.index = MVPP2_PE_MAC_NON_PROMISCUOUS;
1680 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC);
1682 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_DROP_MASK,
1683 MVPP2_PRS_RI_DROP_MASK);
1684 mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
1685 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
1687 /* Unmask all ports */
1688 mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
1690 /* Update shadow table and hw entry */
1691 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC);
1692 mvpp2_prs_hw_write(priv, &pe);
1694 /* place holders only - no ports */
1695 mvpp2_prs_mac_drop_all_set(priv, 0, false);
1696 mvpp2_prs_mac_promisc_set(priv, 0, false);
1697 mvpp2_prs_mac_multi_set(priv, MVPP2_PE_MAC_MC_ALL, 0, false);
1698 mvpp2_prs_mac_multi_set(priv, MVPP2_PE_MAC_MC_IP6, 0, false);
1701 /* Match basic ethertypes */
1702 static int mvpp2_prs_etype_init(struct mvpp2 *priv)
1704 struct mvpp2_prs_entry pe;
1707 /* Ethertype: PPPoE */
1708 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
1709 MVPP2_PE_LAST_FREE_TID);
1713 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1714 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
1717 mvpp2_prs_match_etype(&pe, 0, PROT_PPP_SES);
1719 mvpp2_prs_sram_shift_set(&pe, MVPP2_PPPOE_HDR_SIZE,
1720 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
1721 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_PPPOE);
1722 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_PPPOE_MASK,
1723 MVPP2_PRS_RI_PPPOE_MASK);
1725 /* Update shadow table and hw entry */
1726 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
1727 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
1728 priv->prs_shadow[pe.index].finish = false;
1729 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_PPPOE_MASK,
1730 MVPP2_PRS_RI_PPPOE_MASK);
1731 mvpp2_prs_hw_write(priv, &pe);
1733 /* Ethertype: ARP */
1734 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
1735 MVPP2_PE_LAST_FREE_TID);
1739 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1740 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
1743 mvpp2_prs_match_etype(&pe, 0, PROT_ARP);
1745 /* Generate flow in the next iteration*/
1746 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
1747 mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
1748 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_ARP,
1749 MVPP2_PRS_RI_L3_PROTO_MASK);
1751 mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
1753 MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
1755 /* Update shadow table and hw entry */
1756 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
1757 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
1758 priv->prs_shadow[pe.index].finish = true;
1759 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_ARP,
1760 MVPP2_PRS_RI_L3_PROTO_MASK);
1761 mvpp2_prs_hw_write(priv, &pe);
1763 /* Ethertype: LBTD */
1764 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
1765 MVPP2_PE_LAST_FREE_TID);
1769 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1770 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
1773 mvpp2_prs_match_etype(&pe, 0, MVPP2_IP_LBDT_TYPE);
1775 /* Generate flow in the next iteration*/
1776 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
1777 mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
1778 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_CPU_CODE_RX_SPEC |
1779 MVPP2_PRS_RI_UDF3_RX_SPECIAL,
1780 MVPP2_PRS_RI_CPU_CODE_MASK |
1781 MVPP2_PRS_RI_UDF3_MASK);
1783 mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
1785 MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
1787 /* Update shadow table and hw entry */
1788 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
1789 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
1790 priv->prs_shadow[pe.index].finish = true;
1791 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_CPU_CODE_RX_SPEC |
1792 MVPP2_PRS_RI_UDF3_RX_SPECIAL,
1793 MVPP2_PRS_RI_CPU_CODE_MASK |
1794 MVPP2_PRS_RI_UDF3_MASK);
1795 mvpp2_prs_hw_write(priv, &pe);
1797 /* Ethertype: IPv4 without options */
1798 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
1799 MVPP2_PE_LAST_FREE_TID);
1803 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1804 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
1807 mvpp2_prs_match_etype(&pe, 0, PROT_IP);
1808 mvpp2_prs_tcam_data_byte_set(&pe, MVPP2_ETH_TYPE_LEN,
1809 MVPP2_PRS_IPV4_HEAD | MVPP2_PRS_IPV4_IHL,
1810 MVPP2_PRS_IPV4_HEAD_MASK |
1811 MVPP2_PRS_IPV4_IHL_MASK);
1813 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP4);
1814 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP4,
1815 MVPP2_PRS_RI_L3_PROTO_MASK);
1816 /* Skip eth_type + 4 bytes of IP header */
1817 mvpp2_prs_sram_shift_set(&pe, MVPP2_ETH_TYPE_LEN + 4,
1818 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
1820 mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
1822 MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
1824 /* Update shadow table and hw entry */
1825 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
1826 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
1827 priv->prs_shadow[pe.index].finish = false;
1828 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_IP4,
1829 MVPP2_PRS_RI_L3_PROTO_MASK);
1830 mvpp2_prs_hw_write(priv, &pe);
1832 /* Ethertype: IPv4 with options */
1833 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
1834 MVPP2_PE_LAST_FREE_TID);
1840 /* Clear tcam data before updating */
1841 pe.tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE(MVPP2_ETH_TYPE_LEN)] = 0x0;
1842 pe.tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE_EN(MVPP2_ETH_TYPE_LEN)] = 0x0;
1844 mvpp2_prs_tcam_data_byte_set(&pe, MVPP2_ETH_TYPE_LEN,
1845 MVPP2_PRS_IPV4_HEAD,
1846 MVPP2_PRS_IPV4_HEAD_MASK);
1848 /* Clear ri before updating */
1849 pe.sram.word[MVPP2_PRS_SRAM_RI_WORD] = 0x0;
1850 pe.sram.word[MVPP2_PRS_SRAM_RI_CTRL_WORD] = 0x0;
1851 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP4_OPT,
1852 MVPP2_PRS_RI_L3_PROTO_MASK);
1854 /* Update shadow table and hw entry */
1855 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
1856 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
1857 priv->prs_shadow[pe.index].finish = false;
1858 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_IP4_OPT,
1859 MVPP2_PRS_RI_L3_PROTO_MASK);
1860 mvpp2_prs_hw_write(priv, &pe);
1862 /* Ethertype: IPv6 without options */
1863 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
1864 MVPP2_PE_LAST_FREE_TID);
1868 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1869 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
1872 mvpp2_prs_match_etype(&pe, 0, PROT_IPV6);
1874 /* Skip DIP of IPV6 header */
1875 mvpp2_prs_sram_shift_set(&pe, MVPP2_ETH_TYPE_LEN + 8 +
1876 MVPP2_MAX_L3_ADDR_SIZE,
1877 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
1878 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP6);
1879 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP6,
1880 MVPP2_PRS_RI_L3_PROTO_MASK);
1882 mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
1884 MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
1886 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
1887 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
1888 priv->prs_shadow[pe.index].finish = false;
1889 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_IP6,
1890 MVPP2_PRS_RI_L3_PROTO_MASK);
1891 mvpp2_prs_hw_write(priv, &pe);
1893 /* Default entry for MVPP2_PRS_LU_L2 - Unknown ethtype */
1894 memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
1895 mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
1896 pe.index = MVPP2_PE_ETH_TYPE_UN;
1898 /* Unmask all ports */
1899 mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
1901 /* Generate flow in the next iteration*/
1902 mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
1903 mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
1904 mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_UN,
1905 MVPP2_PRS_RI_L3_PROTO_MASK);
1906 /* Set L3 offset even it's unknown L3 */
1907 mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
1909 MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
1911 /* Update shadow table and hw entry */
1912 mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
1913 priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
1914 priv->prs_shadow[pe.index].finish = true;
1915 mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_UN,
1916 MVPP2_PRS_RI_L3_PROTO_MASK);
1917 mvpp2_prs_hw_write(priv, &pe);
1922 /* Parser default initialization */
1923 static int mvpp2_prs_default_init(struct udevice *dev,
1928 /* Enable tcam table */
1929 mvpp2_write(priv, MVPP2_PRS_TCAM_CTRL_REG, MVPP2_PRS_TCAM_EN_MASK);
1931 /* Clear all tcam and sram entries */
1932 for (index = 0; index < MVPP2_PRS_TCAM_SRAM_SIZE; index++) {
1933 mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, index);
1934 for (i = 0; i < MVPP2_PRS_TCAM_WORDS; i++)
1935 mvpp2_write(priv, MVPP2_PRS_TCAM_DATA_REG(i), 0);
1937 mvpp2_write(priv, MVPP2_PRS_SRAM_IDX_REG, index);
1938 for (i = 0; i < MVPP2_PRS_SRAM_WORDS; i++)
1939 mvpp2_write(priv, MVPP2_PRS_SRAM_DATA_REG(i), 0);
1942 /* Invalidate all tcam entries */
1943 for (index = 0; index < MVPP2_PRS_TCAM_SRAM_SIZE; index++)
1944 mvpp2_prs_hw_inv(priv, index);
1946 priv->prs_shadow = devm_kcalloc(dev, MVPP2_PRS_TCAM_SRAM_SIZE,
1947 sizeof(struct mvpp2_prs_shadow),
1949 if (!priv->prs_shadow)
1952 /* Always start from lookup = 0 */
1953 for (index = 0; index < MVPP2_MAX_PORTS; index++)
1954 mvpp2_prs_hw_port_init(priv, index, MVPP2_PRS_LU_MH,
1955 MVPP2_PRS_PORT_LU_MAX, 0);
1957 mvpp2_prs_def_flow_init(priv);
1959 mvpp2_prs_mh_init(priv);
1961 mvpp2_prs_mac_init(priv);
1963 err = mvpp2_prs_etype_init(priv);
1970 /* Compare MAC DA with tcam entry data */
1971 static bool mvpp2_prs_mac_range_equals(struct mvpp2_prs_entry *pe,
1972 const u8 *da, unsigned char *mask)
1974 unsigned char tcam_byte, tcam_mask;
1977 for (index = 0; index < ETH_ALEN; index++) {
1978 mvpp2_prs_tcam_data_byte_get(pe, index, &tcam_byte, &tcam_mask);
1979 if (tcam_mask != mask[index])
1982 if ((tcam_mask & tcam_byte) != (da[index] & mask[index]))
1989 /* Find tcam entry with matched pair <MAC DA, port> */
1990 static struct mvpp2_prs_entry *
1991 mvpp2_prs_mac_da_range_find(struct mvpp2 *priv, int pmap, const u8 *da,
1992 unsigned char *mask, int udf_type)
1994 struct mvpp2_prs_entry *pe;
1997 pe = kzalloc(sizeof(*pe), GFP_KERNEL);
2000 mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_MAC);
2002 /* Go through the all entires with MVPP2_PRS_LU_MAC */
2003 for (tid = MVPP2_PE_FIRST_FREE_TID;
2004 tid <= MVPP2_PE_LAST_FREE_TID; tid++) {
2005 unsigned int entry_pmap;
2007 if (!priv->prs_shadow[tid].valid ||
2008 (priv->prs_shadow[tid].lu != MVPP2_PRS_LU_MAC) ||
2009 (priv->prs_shadow[tid].udf != udf_type))
2013 mvpp2_prs_hw_read(priv, pe);
2014 entry_pmap = mvpp2_prs_tcam_port_map_get(pe);
2016 if (mvpp2_prs_mac_range_equals(pe, da, mask) &&
2025 /* Update parser's mac da entry */
2026 static int mvpp2_prs_mac_da_accept(struct mvpp2 *priv, int port,
2027 const u8 *da, bool add)
2029 struct mvpp2_prs_entry *pe;
2030 unsigned int pmap, len, ri;
2031 unsigned char mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
2034 /* Scan TCAM and see if entry with this <MAC DA, port> already exist */
2035 pe = mvpp2_prs_mac_da_range_find(priv, (1 << port), da, mask,
2036 MVPP2_PRS_UDF_MAC_DEF);
2043 /* Create new TCAM entry */
2044 /* Find first range mac entry*/
2045 for (tid = MVPP2_PE_FIRST_FREE_TID;
2046 tid <= MVPP2_PE_LAST_FREE_TID; tid++)
2047 if (priv->prs_shadow[tid].valid &&
2048 (priv->prs_shadow[tid].lu == MVPP2_PRS_LU_MAC) &&
2049 (priv->prs_shadow[tid].udf ==
2050 MVPP2_PRS_UDF_MAC_RANGE))
2053 /* Go through the all entries from first to last */
2054 tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
2059 pe = kzalloc(sizeof(*pe), GFP_KERNEL);
2062 mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_MAC);
2065 /* Mask all ports */
2066 mvpp2_prs_tcam_port_map_set(pe, 0);
2069 /* Update port mask */
2070 mvpp2_prs_tcam_port_set(pe, port, add);
2072 /* Invalidate the entry if no ports are left enabled */
2073 pmap = mvpp2_prs_tcam_port_map_get(pe);
2079 mvpp2_prs_hw_inv(priv, pe->index);
2080 priv->prs_shadow[pe->index].valid = false;
2085 /* Continue - set next lookup */
2086 mvpp2_prs_sram_next_lu_set(pe, MVPP2_PRS_LU_DSA);
2088 /* Set match on DA */
2091 mvpp2_prs_tcam_data_byte_set(pe, len, da[len], 0xff);
2093 /* Set result info bits */
2094 ri = MVPP2_PRS_RI_L2_UCAST | MVPP2_PRS_RI_MAC_ME_MASK;
2096 mvpp2_prs_sram_ri_update(pe, ri, MVPP2_PRS_RI_L2_CAST_MASK |
2097 MVPP2_PRS_RI_MAC_ME_MASK);
2098 mvpp2_prs_shadow_ri_set(priv, pe->index, ri, MVPP2_PRS_RI_L2_CAST_MASK |
2099 MVPP2_PRS_RI_MAC_ME_MASK);
2101 /* Shift to ethertype */
2102 mvpp2_prs_sram_shift_set(pe, 2 * ETH_ALEN,
2103 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
2105 /* Update shadow table and hw entry */
2106 priv->prs_shadow[pe->index].udf = MVPP2_PRS_UDF_MAC_DEF;
2107 mvpp2_prs_shadow_set(priv, pe->index, MVPP2_PRS_LU_MAC);
2108 mvpp2_prs_hw_write(priv, pe);
2115 static int mvpp2_prs_update_mac_da(struct mvpp2_port *port, const u8 *da)
2119 /* Remove old parser entry */
2120 err = mvpp2_prs_mac_da_accept(port->priv, port->id, port->dev_addr,
2125 /* Add new parser entry */
2126 err = mvpp2_prs_mac_da_accept(port->priv, port->id, da, true);
2130 /* Set addr in the device */
2131 memcpy(port->dev_addr, da, ETH_ALEN);
2136 /* Set prs flow for the port */
2137 static int mvpp2_prs_def_flow(struct mvpp2_port *port)
2139 struct mvpp2_prs_entry *pe;
2142 pe = mvpp2_prs_flow_find(port->priv, port->id);
2144 /* Such entry not exist */
2146 /* Go through the all entires from last to first */
2147 tid = mvpp2_prs_tcam_first_free(port->priv,
2148 MVPP2_PE_LAST_FREE_TID,
2149 MVPP2_PE_FIRST_FREE_TID);
2153 pe = kzalloc(sizeof(*pe), GFP_KERNEL);
2157 mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_FLOWS);
2161 mvpp2_prs_sram_ai_update(pe, port->id, MVPP2_PRS_FLOW_ID_MASK);
2162 mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_LU_DONE_BIT, 1);
2164 /* Update shadow table */
2165 mvpp2_prs_shadow_set(port->priv, pe->index, MVPP2_PRS_LU_FLOWS);
2168 mvpp2_prs_tcam_port_map_set(pe, (1 << port->id));
2169 mvpp2_prs_hw_write(port->priv, pe);
2175 /* Classifier configuration routines */
2177 /* Update classification flow table registers */
2178 static void mvpp2_cls_flow_write(struct mvpp2 *priv,
2179 struct mvpp2_cls_flow_entry *fe)
2181 mvpp2_write(priv, MVPP2_CLS_FLOW_INDEX_REG, fe->index);
2182 mvpp2_write(priv, MVPP2_CLS_FLOW_TBL0_REG, fe->data[0]);
2183 mvpp2_write(priv, MVPP2_CLS_FLOW_TBL1_REG, fe->data[1]);
2184 mvpp2_write(priv, MVPP2_CLS_FLOW_TBL2_REG, fe->data[2]);
2187 /* Update classification lookup table register */
2188 static void mvpp2_cls_lookup_write(struct mvpp2 *priv,
2189 struct mvpp2_cls_lookup_entry *le)
2193 val = (le->way << MVPP2_CLS_LKP_INDEX_WAY_OFFS) | le->lkpid;
2194 mvpp2_write(priv, MVPP2_CLS_LKP_INDEX_REG, val);
2195 mvpp2_write(priv, MVPP2_CLS_LKP_TBL_REG, le->data);
2198 /* Classifier default initialization */
2199 static void mvpp2_cls_init(struct mvpp2 *priv)
2201 struct mvpp2_cls_lookup_entry le;
2202 struct mvpp2_cls_flow_entry fe;
2205 /* Enable classifier */
2206 mvpp2_write(priv, MVPP2_CLS_MODE_REG, MVPP2_CLS_MODE_ACTIVE_MASK);
2208 /* Clear classifier flow table */
2209 memset(&fe.data, 0, MVPP2_CLS_FLOWS_TBL_DATA_WORDS);
2210 for (index = 0; index < MVPP2_CLS_FLOWS_TBL_SIZE; index++) {
2212 mvpp2_cls_flow_write(priv, &fe);
2215 /* Clear classifier lookup table */
2217 for (index = 0; index < MVPP2_CLS_LKP_TBL_SIZE; index++) {
2220 mvpp2_cls_lookup_write(priv, &le);
2223 mvpp2_cls_lookup_write(priv, &le);
2227 static void mvpp2_cls_port_config(struct mvpp2_port *port)
2229 struct mvpp2_cls_lookup_entry le;
2232 /* Set way for the port */
2233 val = mvpp2_read(port->priv, MVPP2_CLS_PORT_WAY_REG);
2234 val &= ~MVPP2_CLS_PORT_WAY_MASK(port->id);
2235 mvpp2_write(port->priv, MVPP2_CLS_PORT_WAY_REG, val);
2237 /* Pick the entry to be accessed in lookup ID decoding table
2238 * according to the way and lkpid.
2240 le.lkpid = port->id;
2244 /* Set initial CPU queue for receiving packets */
2245 le.data &= ~MVPP2_CLS_LKP_TBL_RXQ_MASK;
2246 le.data |= port->first_rxq;
2248 /* Disable classification engines */
2249 le.data &= ~MVPP2_CLS_LKP_TBL_LOOKUP_EN_MASK;
2251 /* Update lookup ID table entry */
2252 mvpp2_cls_lookup_write(port->priv, &le);
2255 /* Set CPU queue number for oversize packets */
2256 static void mvpp2_cls_oversize_rxq_set(struct mvpp2_port *port)
2260 mvpp2_write(port->priv, MVPP2_CLS_OVERSIZE_RXQ_LOW_REG(port->id),
2261 port->first_rxq & MVPP2_CLS_OVERSIZE_RXQ_LOW_MASK);
2263 mvpp2_write(port->priv, MVPP2_CLS_SWFWD_P2HQ_REG(port->id),
2264 (port->first_rxq >> MVPP2_CLS_OVERSIZE_RXQ_LOW_BITS));
2266 val = mvpp2_read(port->priv, MVPP2_CLS_SWFWD_PCTRL_REG);
2267 val |= MVPP2_CLS_SWFWD_PCTRL_MASK(port->id);
2268 mvpp2_write(port->priv, MVPP2_CLS_SWFWD_PCTRL_REG, val);
2271 /* Buffer Manager configuration routines */
2274 static int mvpp2_bm_pool_create(struct udevice *dev,
2276 struct mvpp2_bm_pool *bm_pool, int size)
2280 bm_pool->virt_addr = buffer_loc.bm_pool[bm_pool->id];
2281 bm_pool->dma_addr = (dma_addr_t)buffer_loc.bm_pool[bm_pool->id];
2282 if (!bm_pool->virt_addr)
2285 if (!IS_ALIGNED((unsigned long)bm_pool->virt_addr,
2286 MVPP2_BM_POOL_PTR_ALIGN)) {
2287 dev_err(&pdev->dev, "BM pool %d is not %d bytes aligned\n",
2288 bm_pool->id, MVPP2_BM_POOL_PTR_ALIGN);
2292 mvpp2_write(priv, MVPP2_BM_POOL_BASE_REG(bm_pool->id),
2294 mvpp2_write(priv, MVPP2_BM_POOL_SIZE_REG(bm_pool->id), size);
2296 val = mvpp2_read(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id));
2297 val |= MVPP2_BM_START_MASK;
2298 mvpp2_write(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id), val);
2300 bm_pool->type = MVPP2_BM_FREE;
2301 bm_pool->size = size;
2302 bm_pool->pkt_size = 0;
2303 bm_pool->buf_num = 0;
2308 /* Set pool buffer size */
2309 static void mvpp2_bm_pool_bufsize_set(struct mvpp2 *priv,
2310 struct mvpp2_bm_pool *bm_pool,
2315 bm_pool->buf_size = buf_size;
2317 val = ALIGN(buf_size, 1 << MVPP2_POOL_BUF_SIZE_OFFSET);
2318 mvpp2_write(priv, MVPP2_POOL_BUF_SIZE_REG(bm_pool->id), val);
2321 /* Free all buffers from the pool */
2322 static void mvpp2_bm_bufs_free(struct udevice *dev, struct mvpp2 *priv,
2323 struct mvpp2_bm_pool *bm_pool)
2325 bm_pool->buf_num = 0;
2329 static int mvpp2_bm_pool_destroy(struct udevice *dev,
2331 struct mvpp2_bm_pool *bm_pool)
2335 mvpp2_bm_bufs_free(dev, priv, bm_pool);
2336 if (bm_pool->buf_num) {
2337 dev_err(dev, "cannot free all buffers in pool %d\n", bm_pool->id);
2341 val = mvpp2_read(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id));
2342 val |= MVPP2_BM_STOP_MASK;
2343 mvpp2_write(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id), val);
2348 static int mvpp2_bm_pools_init(struct udevice *dev,
2352 struct mvpp2_bm_pool *bm_pool;
2354 /* Create all pools with maximum size */
2355 size = MVPP2_BM_POOL_SIZE_MAX;
2356 for (i = 0; i < MVPP2_BM_POOLS_NUM; i++) {
2357 bm_pool = &priv->bm_pools[i];
2359 err = mvpp2_bm_pool_create(dev, priv, bm_pool, size);
2361 goto err_unroll_pools;
2362 mvpp2_bm_pool_bufsize_set(priv, bm_pool, 0);
2367 dev_err(&pdev->dev, "failed to create BM pool %d, size %d\n", i, size);
2368 for (i = i - 1; i >= 0; i--)
2369 mvpp2_bm_pool_destroy(dev, priv, &priv->bm_pools[i]);
2373 static int mvpp2_bm_init(struct udevice *dev, struct mvpp2 *priv)
2377 for (i = 0; i < MVPP2_BM_POOLS_NUM; i++) {
2378 /* Mask BM all interrupts */
2379 mvpp2_write(priv, MVPP2_BM_INTR_MASK_REG(i), 0);
2380 /* Clear BM cause register */
2381 mvpp2_write(priv, MVPP2_BM_INTR_CAUSE_REG(i), 0);
2384 /* Allocate and initialize BM pools */
2385 priv->bm_pools = devm_kcalloc(dev, MVPP2_BM_POOLS_NUM,
2386 sizeof(struct mvpp2_bm_pool), GFP_KERNEL);
2387 if (!priv->bm_pools)
2390 err = mvpp2_bm_pools_init(dev, priv);
2396 /* Attach long pool to rxq */
2397 static void mvpp2_rxq_long_pool_set(struct mvpp2_port *port,
2398 int lrxq, int long_pool)
2403 /* Get queue physical ID */
2404 prxq = port->rxqs[lrxq]->id;
2406 val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(prxq));
2407 val &= ~MVPP2_RXQ_POOL_LONG_MASK;
2408 val |= ((long_pool << MVPP2_RXQ_POOL_LONG_OFFS) &
2409 MVPP2_RXQ_POOL_LONG_MASK);
2411 mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(prxq), val);
2414 /* Set pool number in a BM cookie */
2415 static inline u32 mvpp2_bm_cookie_pool_set(u32 cookie, int pool)
2419 bm = cookie & ~(0xFF << MVPP2_BM_COOKIE_POOL_OFFS);
2420 bm |= ((pool & 0xFF) << MVPP2_BM_COOKIE_POOL_OFFS);
2425 /* Get pool number from a BM cookie */
2426 static inline int mvpp2_bm_cookie_pool_get(unsigned long cookie)
2428 return (cookie >> MVPP2_BM_COOKIE_POOL_OFFS) & 0xFF;
2431 /* Release buffer to BM */
2432 static inline void mvpp2_bm_pool_put(struct mvpp2_port *port, int pool,
2433 dma_addr_t buf_dma_addr,
2434 unsigned long buf_phys_addr)
2436 /* MVPP2_BM_VIRT_RLS_REG is not interpreted by HW, and simply
2437 * returned in the "cookie" field of the RX
2438 * descriptor. Instead of storing the virtual address, we
2439 * store the physical address
2441 mvpp2_write(port->priv, MVPP2_BM_VIRT_RLS_REG, buf_phys_addr);
2442 mvpp2_write(port->priv, MVPP2_BM_PHY_RLS_REG(pool), buf_dma_addr);
2445 /* Refill BM pool */
2446 static void mvpp2_pool_refill(struct mvpp2_port *port, u32 bm,
2447 dma_addr_t dma_addr,
2448 phys_addr_t phys_addr)
2450 int pool = mvpp2_bm_cookie_pool_get(bm);
2452 mvpp2_bm_pool_put(port, pool, dma_addr, phys_addr);
2455 /* Allocate buffers for the pool */
2456 static int mvpp2_bm_bufs_add(struct mvpp2_port *port,
2457 struct mvpp2_bm_pool *bm_pool, int buf_num)
2462 (buf_num + bm_pool->buf_num > bm_pool->size)) {
2463 netdev_err(port->dev,
2464 "cannot allocate %d buffers for pool %d\n",
2465 buf_num, bm_pool->id);
2469 for (i = 0; i < buf_num; i++) {
2470 mvpp2_bm_pool_put(port, bm_pool->id,
2471 (dma_addr_t)buffer_loc.rx_buffer[i],
2472 (unsigned long)buffer_loc.rx_buffer[i]);
2476 /* Update BM driver with number of buffers added to pool */
2477 bm_pool->buf_num += i;
2478 bm_pool->in_use_thresh = bm_pool->buf_num / 4;
2483 /* Notify the driver that BM pool is being used as specific type and return the
2484 * pool pointer on success
2486 static struct mvpp2_bm_pool *
2487 mvpp2_bm_pool_use(struct mvpp2_port *port, int pool, enum mvpp2_bm_type type,
2490 struct mvpp2_bm_pool *new_pool = &port->priv->bm_pools[pool];
2493 if (new_pool->type != MVPP2_BM_FREE && new_pool->type != type) {
2494 netdev_err(port->dev, "mixing pool types is forbidden\n");
2498 if (new_pool->type == MVPP2_BM_FREE)
2499 new_pool->type = type;
2501 /* Allocate buffers in case BM pool is used as long pool, but packet
2502 * size doesn't match MTU or BM pool hasn't being used yet
2504 if (((type == MVPP2_BM_SWF_LONG) && (pkt_size > new_pool->pkt_size)) ||
2505 (new_pool->pkt_size == 0)) {
2508 /* Set default buffer number or free all the buffers in case
2509 * the pool is not empty
2511 pkts_num = new_pool->buf_num;
2513 pkts_num = type == MVPP2_BM_SWF_LONG ?
2514 MVPP2_BM_LONG_BUF_NUM :
2515 MVPP2_BM_SHORT_BUF_NUM;
2517 mvpp2_bm_bufs_free(NULL,
2518 port->priv, new_pool);
2520 new_pool->pkt_size = pkt_size;
2522 /* Allocate buffers for this pool */
2523 num = mvpp2_bm_bufs_add(port, new_pool, pkts_num);
2524 if (num != pkts_num) {
2525 dev_err(dev, "pool %d: %d of %d allocated\n",
2526 new_pool->id, num, pkts_num);
2531 mvpp2_bm_pool_bufsize_set(port->priv, new_pool,
2532 MVPP2_RX_BUF_SIZE(new_pool->pkt_size));
2537 /* Initialize pools for swf */
2538 static int mvpp2_swf_bm_pool_init(struct mvpp2_port *port)
2542 if (!port->pool_long) {
2544 mvpp2_bm_pool_use(port, MVPP2_BM_SWF_LONG_POOL(port->id),
2547 if (!port->pool_long)
2550 port->pool_long->port_map |= (1 << port->id);
2552 for (rxq = 0; rxq < rxq_number; rxq++)
2553 mvpp2_rxq_long_pool_set(port, rxq, port->pool_long->id);
2559 /* Port configuration routines */
2561 static void mvpp2_port_mii_set(struct mvpp2_port *port)
2565 val = readl(port->base + MVPP2_GMAC_CTRL_2_REG);
2567 switch (port->phy_interface) {
2568 case PHY_INTERFACE_MODE_SGMII:
2569 val |= MVPP2_GMAC_INBAND_AN_MASK;
2571 case PHY_INTERFACE_MODE_RGMII:
2572 val |= MVPP2_GMAC_PORT_RGMII_MASK;
2574 val &= ~MVPP2_GMAC_PCS_ENABLE_MASK;
2577 writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
2580 static void mvpp2_port_fc_adv_enable(struct mvpp2_port *port)
2584 val = readl(port->base + MVPP2_GMAC_AUTONEG_CONFIG);
2585 val |= MVPP2_GMAC_FC_ADV_EN;
2586 writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
2589 static void mvpp2_port_enable(struct mvpp2_port *port)
2593 val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
2594 val |= MVPP2_GMAC_PORT_EN_MASK;
2595 val |= MVPP2_GMAC_MIB_CNTR_EN_MASK;
2596 writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
2599 static void mvpp2_port_disable(struct mvpp2_port *port)
2603 val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
2604 val &= ~(MVPP2_GMAC_PORT_EN_MASK);
2605 writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
2608 /* Set IEEE 802.3x Flow Control Xon Packet Transmission Mode */
2609 static void mvpp2_port_periodic_xon_disable(struct mvpp2_port *port)
2613 val = readl(port->base + MVPP2_GMAC_CTRL_1_REG) &
2614 ~MVPP2_GMAC_PERIODIC_XON_EN_MASK;
2615 writel(val, port->base + MVPP2_GMAC_CTRL_1_REG);
2618 /* Configure loopback port */
2619 static void mvpp2_port_loopback_set(struct mvpp2_port *port)
2623 val = readl(port->base + MVPP2_GMAC_CTRL_1_REG);
2625 if (port->speed == 1000)
2626 val |= MVPP2_GMAC_GMII_LB_EN_MASK;
2628 val &= ~MVPP2_GMAC_GMII_LB_EN_MASK;
2630 if (port->phy_interface == PHY_INTERFACE_MODE_SGMII)
2631 val |= MVPP2_GMAC_PCS_LB_EN_MASK;
2633 val &= ~MVPP2_GMAC_PCS_LB_EN_MASK;
2635 writel(val, port->base + MVPP2_GMAC_CTRL_1_REG);
2638 static void mvpp2_port_reset(struct mvpp2_port *port)
2642 val = readl(port->base + MVPP2_GMAC_CTRL_2_REG) &
2643 ~MVPP2_GMAC_PORT_RESET_MASK;
2644 writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
2646 while (readl(port->base + MVPP2_GMAC_CTRL_2_REG) &
2647 MVPP2_GMAC_PORT_RESET_MASK)
2651 /* Change maximum receive size of the port */
2652 static inline void mvpp2_gmac_max_rx_size_set(struct mvpp2_port *port)
2656 val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
2657 val &= ~MVPP2_GMAC_MAX_RX_SIZE_MASK;
2658 val |= (((port->pkt_size - MVPP2_MH_SIZE) / 2) <<
2659 MVPP2_GMAC_MAX_RX_SIZE_OFFS);
2660 writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
2663 /* Set defaults to the MVPP2 port */
2664 static void mvpp2_defaults_set(struct mvpp2_port *port)
2666 int tx_port_num, val, queue, ptxq, lrxq;
2668 /* Configure port to loopback if needed */
2669 if (port->flags & MVPP2_F_LOOPBACK)
2670 mvpp2_port_loopback_set(port);
2672 /* Update TX FIFO MIN Threshold */
2673 val = readl(port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
2674 val &= ~MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK;
2675 /* Min. TX threshold must be less than minimal packet length */
2676 val |= MVPP2_GMAC_TX_FIFO_MIN_TH_MASK(64 - 4 - 2);
2677 writel(val, port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
2679 /* Disable Legacy WRR, Disable EJP, Release from reset */
2680 tx_port_num = mvpp2_egress_port(port);
2681 mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG,
2683 mvpp2_write(port->priv, MVPP2_TXP_SCHED_CMD_1_REG, 0);
2685 /* Close bandwidth for all queues */
2686 for (queue = 0; queue < MVPP2_MAX_TXQ; queue++) {
2687 ptxq = mvpp2_txq_phys(port->id, queue);
2688 mvpp2_write(port->priv,
2689 MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(ptxq), 0);
2692 /* Set refill period to 1 usec, refill tokens
2693 * and bucket size to maximum
2695 mvpp2_write(port->priv, MVPP2_TXP_SCHED_PERIOD_REG, 0xc8);
2696 val = mvpp2_read(port->priv, MVPP2_TXP_SCHED_REFILL_REG);
2697 val &= ~MVPP2_TXP_REFILL_PERIOD_ALL_MASK;
2698 val |= MVPP2_TXP_REFILL_PERIOD_MASK(1);
2699 val |= MVPP2_TXP_REFILL_TOKENS_ALL_MASK;
2700 mvpp2_write(port->priv, MVPP2_TXP_SCHED_REFILL_REG, val);
2701 val = MVPP2_TXP_TOKEN_SIZE_MAX;
2702 mvpp2_write(port->priv, MVPP2_TXP_SCHED_TOKEN_SIZE_REG, val);
2704 /* Set MaximumLowLatencyPacketSize value to 256 */
2705 mvpp2_write(port->priv, MVPP2_RX_CTRL_REG(port->id),
2706 MVPP2_RX_USE_PSEUDO_FOR_CSUM_MASK |
2707 MVPP2_RX_LOW_LATENCY_PKT_SIZE(256));
2709 /* Enable Rx cache snoop */
2710 for (lrxq = 0; lrxq < rxq_number; lrxq++) {
2711 queue = port->rxqs[lrxq]->id;
2712 val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(queue));
2713 val |= MVPP2_SNOOP_PKT_SIZE_MASK |
2714 MVPP2_SNOOP_BUF_HDR_MASK;
2715 mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(queue), val);
2719 /* Enable/disable receiving packets */
2720 static void mvpp2_ingress_enable(struct mvpp2_port *port)
2725 for (lrxq = 0; lrxq < rxq_number; lrxq++) {
2726 queue = port->rxqs[lrxq]->id;
2727 val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(queue));
2728 val &= ~MVPP2_RXQ_DISABLE_MASK;
2729 mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(queue), val);
2733 static void mvpp2_ingress_disable(struct mvpp2_port *port)
2738 for (lrxq = 0; lrxq < rxq_number; lrxq++) {
2739 queue = port->rxqs[lrxq]->id;
2740 val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(queue));
2741 val |= MVPP2_RXQ_DISABLE_MASK;
2742 mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(queue), val);
2746 /* Enable transmit via physical egress queue
2747 * - HW starts take descriptors from DRAM
2749 static void mvpp2_egress_enable(struct mvpp2_port *port)
2753 int tx_port_num = mvpp2_egress_port(port);
2755 /* Enable all initialized TXs. */
2757 for (queue = 0; queue < txq_number; queue++) {
2758 struct mvpp2_tx_queue *txq = port->txqs[queue];
2760 if (txq->descs != NULL)
2761 qmap |= (1 << queue);
2764 mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num);
2765 mvpp2_write(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG, qmap);
2768 /* Disable transmit via physical egress queue
2769 * - HW doesn't take descriptors from DRAM
2771 static void mvpp2_egress_disable(struct mvpp2_port *port)
2775 int tx_port_num = mvpp2_egress_port(port);
2777 /* Issue stop command for active channels only */
2778 mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num);
2779 reg_data = (mvpp2_read(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG)) &
2780 MVPP2_TXP_SCHED_ENQ_MASK;
2782 mvpp2_write(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG,
2783 (reg_data << MVPP2_TXP_SCHED_DISQ_OFFSET));
2785 /* Wait for all Tx activity to terminate. */
2788 if (delay >= MVPP2_TX_DISABLE_TIMEOUT_MSEC) {
2789 netdev_warn(port->dev,
2790 "Tx stop timed out, status=0x%08x\n",
2797 /* Check port TX Command register that all
2798 * Tx queues are stopped
2800 reg_data = mvpp2_read(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG);
2801 } while (reg_data & MVPP2_TXP_SCHED_ENQ_MASK);
2804 /* Rx descriptors helper methods */
2806 /* Get number of Rx descriptors occupied by received packets */
2808 mvpp2_rxq_received(struct mvpp2_port *port, int rxq_id)
2810 u32 val = mvpp2_read(port->priv, MVPP2_RXQ_STATUS_REG(rxq_id));
2812 return val & MVPP2_RXQ_OCCUPIED_MASK;
2815 /* Update Rx queue status with the number of occupied and available
2816 * Rx descriptor slots.
2819 mvpp2_rxq_status_update(struct mvpp2_port *port, int rxq_id,
2820 int used_count, int free_count)
2822 /* Decrement the number of used descriptors and increment count
2823 * increment the number of free descriptors.
2825 u32 val = used_count | (free_count << MVPP2_RXQ_NUM_NEW_OFFSET);
2827 mvpp2_write(port->priv, MVPP2_RXQ_STATUS_UPDATE_REG(rxq_id), val);
2830 /* Get pointer to next RX descriptor to be processed by SW */
2831 static inline struct mvpp2_rx_desc *
2832 mvpp2_rxq_next_desc_get(struct mvpp2_rx_queue *rxq)
2834 int rx_desc = rxq->next_desc_to_proc;
2836 rxq->next_desc_to_proc = MVPP2_QUEUE_NEXT_DESC(rxq, rx_desc);
2837 prefetch(rxq->descs + rxq->next_desc_to_proc);
2838 return rxq->descs + rx_desc;
2841 /* Set rx queue offset */
2842 static void mvpp2_rxq_offset_set(struct mvpp2_port *port,
2843 int prxq, int offset)
2847 /* Convert offset from bytes to units of 32 bytes */
2848 offset = offset >> 5;
2850 val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(prxq));
2851 val &= ~MVPP2_RXQ_PACKET_OFFSET_MASK;
2854 val |= ((offset << MVPP2_RXQ_PACKET_OFFSET_OFFS) &
2855 MVPP2_RXQ_PACKET_OFFSET_MASK);
2857 mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(prxq), val);
2860 /* Obtain BM cookie information from descriptor */
2861 static u32 mvpp2_bm_cookie_build(struct mvpp2_port *port,
2862 struct mvpp2_rx_desc *rx_desc)
2864 int cpu = smp_processor_id();
2867 pool = (mvpp2_rxdesc_status_get(port, rx_desc) &
2868 MVPP2_RXD_BM_POOL_ID_MASK) >>
2869 MVPP2_RXD_BM_POOL_ID_OFFS;
2871 return ((pool & 0xFF) << MVPP2_BM_COOKIE_POOL_OFFS) |
2872 ((cpu & 0xFF) << MVPP2_BM_COOKIE_CPU_OFFS);
2875 /* Tx descriptors helper methods */
2877 /* Get number of Tx descriptors waiting to be transmitted by HW */
2878 static int mvpp2_txq_pend_desc_num_get(struct mvpp2_port *port,
2879 struct mvpp2_tx_queue *txq)
2883 mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
2884 val = mvpp2_read(port->priv, MVPP2_TXQ_PENDING_REG);
2886 return val & MVPP2_TXQ_PENDING_MASK;
2889 /* Get pointer to next Tx descriptor to be processed (send) by HW */
2890 static struct mvpp2_tx_desc *
2891 mvpp2_txq_next_desc_get(struct mvpp2_tx_queue *txq)
2893 int tx_desc = txq->next_desc_to_proc;
2895 txq->next_desc_to_proc = MVPP2_QUEUE_NEXT_DESC(txq, tx_desc);
2896 return txq->descs + tx_desc;
2899 /* Update HW with number of aggregated Tx descriptors to be sent */
2900 static void mvpp2_aggr_txq_pend_desc_add(struct mvpp2_port *port, int pending)
2902 /* aggregated access - relevant TXQ number is written in TX desc */
2903 mvpp2_write(port->priv, MVPP2_AGGR_TXQ_UPDATE_REG, pending);
2906 /* Get number of sent descriptors and decrement counter.
2907 * The number of sent descriptors is returned.
2910 static inline int mvpp2_txq_sent_desc_proc(struct mvpp2_port *port,
2911 struct mvpp2_tx_queue *txq)
2915 /* Reading status reg resets transmitted descriptor counter */
2916 val = mvpp2_read(port->priv, MVPP2_TXQ_SENT_REG(txq->id));
2918 return (val & MVPP2_TRANSMITTED_COUNT_MASK) >>
2919 MVPP2_TRANSMITTED_COUNT_OFFSET;
2922 static void mvpp2_txq_sent_counter_clear(void *arg)
2924 struct mvpp2_port *port = arg;
2927 for (queue = 0; queue < txq_number; queue++) {
2928 int id = port->txqs[queue]->id;
2930 mvpp2_read(port->priv, MVPP2_TXQ_SENT_REG(id));
2934 /* Set max sizes for Tx queues */
2935 static void mvpp2_txp_max_tx_size_set(struct mvpp2_port *port)
2938 int txq, tx_port_num;
2940 mtu = port->pkt_size * 8;
2941 if (mtu > MVPP2_TXP_MTU_MAX)
2942 mtu = MVPP2_TXP_MTU_MAX;
2944 /* WA for wrong Token bucket update: Set MTU value = 3*real MTU value */
2947 /* Indirect access to registers */
2948 tx_port_num = mvpp2_egress_port(port);
2949 mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num);
2952 val = mvpp2_read(port->priv, MVPP2_TXP_SCHED_MTU_REG);
2953 val &= ~MVPP2_TXP_MTU_MAX;
2955 mvpp2_write(port->priv, MVPP2_TXP_SCHED_MTU_REG, val);
2957 /* TXP token size and all TXQs token size must be larger that MTU */
2958 val = mvpp2_read(port->priv, MVPP2_TXP_SCHED_TOKEN_SIZE_REG);
2959 size = val & MVPP2_TXP_TOKEN_SIZE_MAX;
2962 val &= ~MVPP2_TXP_TOKEN_SIZE_MAX;
2964 mvpp2_write(port->priv, MVPP2_TXP_SCHED_TOKEN_SIZE_REG, val);
2967 for (txq = 0; txq < txq_number; txq++) {
2968 val = mvpp2_read(port->priv,
2969 MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(txq));
2970 size = val & MVPP2_TXQ_TOKEN_SIZE_MAX;
2974 val &= ~MVPP2_TXQ_TOKEN_SIZE_MAX;
2976 mvpp2_write(port->priv,
2977 MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(txq),
2983 /* Free Tx queue skbuffs */
2984 static void mvpp2_txq_bufs_free(struct mvpp2_port *port,
2985 struct mvpp2_tx_queue *txq,
2986 struct mvpp2_txq_pcpu *txq_pcpu, int num)
2990 for (i = 0; i < num; i++)
2991 mvpp2_txq_inc_get(txq_pcpu);
2994 static inline struct mvpp2_rx_queue *mvpp2_get_rx_queue(struct mvpp2_port *port,
2997 int queue = fls(cause) - 1;
2999 return port->rxqs[queue];
3002 static inline struct mvpp2_tx_queue *mvpp2_get_tx_queue(struct mvpp2_port *port,
3005 int queue = fls(cause) - 1;
3007 return port->txqs[queue];
3010 /* Rx/Tx queue initialization/cleanup methods */
3012 /* Allocate and initialize descriptors for aggr TXQ */
3013 static int mvpp2_aggr_txq_init(struct udevice *dev,
3014 struct mvpp2_tx_queue *aggr_txq,
3015 int desc_num, int cpu,
3018 /* Allocate memory for TX descriptors */
3019 aggr_txq->descs = buffer_loc.aggr_tx_descs;
3020 aggr_txq->descs_dma = (dma_addr_t)buffer_loc.aggr_tx_descs;
3021 if (!aggr_txq->descs)
3024 /* Make sure descriptor address is cache line size aligned */
3025 BUG_ON(aggr_txq->descs !=
3026 PTR_ALIGN(aggr_txq->descs, MVPP2_CPU_D_CACHE_LINE_SIZE));
3028 aggr_txq->last_desc = aggr_txq->size - 1;
3030 /* Aggr TXQ no reset WA */
3031 aggr_txq->next_desc_to_proc = mvpp2_read(priv,
3032 MVPP2_AGGR_TXQ_INDEX_REG(cpu));
3034 /* Set Tx descriptors queue starting address */
3035 /* indirect access */
3036 mvpp2_write(priv, MVPP2_AGGR_TXQ_DESC_ADDR_REG(cpu),
3037 aggr_txq->descs_dma);
3038 mvpp2_write(priv, MVPP2_AGGR_TXQ_DESC_SIZE_REG(cpu), desc_num);
3043 /* Create a specified Rx queue */
3044 static int mvpp2_rxq_init(struct mvpp2_port *port,
3045 struct mvpp2_rx_queue *rxq)
3048 rxq->size = port->rx_ring_size;
3050 /* Allocate memory for RX descriptors */
3051 rxq->descs = buffer_loc.rx_descs;
3052 rxq->descs_dma = (dma_addr_t)buffer_loc.rx_descs;
3056 BUG_ON(rxq->descs !=
3057 PTR_ALIGN(rxq->descs, MVPP2_CPU_D_CACHE_LINE_SIZE));
3059 rxq->last_desc = rxq->size - 1;
3061 /* Zero occupied and non-occupied counters - direct access */
3062 mvpp2_write(port->priv, MVPP2_RXQ_STATUS_REG(rxq->id), 0);
3064 /* Set Rx descriptors queue starting address - indirect access */
3065 mvpp2_write(port->priv, MVPP2_RXQ_NUM_REG, rxq->id);
3066 mvpp2_write(port->priv, MVPP2_RXQ_DESC_ADDR_REG, rxq->descs_dma);
3067 mvpp2_write(port->priv, MVPP2_RXQ_DESC_SIZE_REG, rxq->size);
3068 mvpp2_write(port->priv, MVPP2_RXQ_INDEX_REG, 0);
3071 mvpp2_rxq_offset_set(port, rxq->id, NET_SKB_PAD);
3073 /* Add number of descriptors ready for receiving packets */
3074 mvpp2_rxq_status_update(port, rxq->id, 0, rxq->size);
3079 /* Push packets received by the RXQ to BM pool */
3080 static void mvpp2_rxq_drop_pkts(struct mvpp2_port *port,
3081 struct mvpp2_rx_queue *rxq)
3085 rx_received = mvpp2_rxq_received(port, rxq->id);
3089 for (i = 0; i < rx_received; i++) {
3090 struct mvpp2_rx_desc *rx_desc = mvpp2_rxq_next_desc_get(rxq);
3091 u32 bm = mvpp2_bm_cookie_build(port, rx_desc);
3093 mvpp2_pool_refill(port, bm,
3094 mvpp2_rxdesc_dma_addr_get(port, rx_desc),
3095 mvpp2_rxdesc_cookie_get(port, rx_desc));
3097 mvpp2_rxq_status_update(port, rxq->id, rx_received, rx_received);
3100 /* Cleanup Rx queue */
3101 static void mvpp2_rxq_deinit(struct mvpp2_port *port,
3102 struct mvpp2_rx_queue *rxq)
3104 mvpp2_rxq_drop_pkts(port, rxq);
3108 rxq->next_desc_to_proc = 0;
3111 /* Clear Rx descriptors queue starting address and size;
3112 * free descriptor number
3114 mvpp2_write(port->priv, MVPP2_RXQ_STATUS_REG(rxq->id), 0);
3115 mvpp2_write(port->priv, MVPP2_RXQ_NUM_REG, rxq->id);
3116 mvpp2_write(port->priv, MVPP2_RXQ_DESC_ADDR_REG, 0);
3117 mvpp2_write(port->priv, MVPP2_RXQ_DESC_SIZE_REG, 0);
3120 /* Create and initialize a Tx queue */
3121 static int mvpp2_txq_init(struct mvpp2_port *port,
3122 struct mvpp2_tx_queue *txq)
3125 int cpu, desc, desc_per_txq, tx_port_num;
3126 struct mvpp2_txq_pcpu *txq_pcpu;
3128 txq->size = port->tx_ring_size;
3130 /* Allocate memory for Tx descriptors */
3131 txq->descs = buffer_loc.tx_descs;
3132 txq->descs_dma = (dma_addr_t)buffer_loc.tx_descs;
3136 /* Make sure descriptor address is cache line size aligned */
3137 BUG_ON(txq->descs !=
3138 PTR_ALIGN(txq->descs, MVPP2_CPU_D_CACHE_LINE_SIZE));
3140 txq->last_desc = txq->size - 1;
3142 /* Set Tx descriptors queue starting address - indirect access */
3143 mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
3144 mvpp2_write(port->priv, MVPP2_TXQ_DESC_ADDR_REG, txq->descs_dma);
3145 mvpp2_write(port->priv, MVPP2_TXQ_DESC_SIZE_REG, txq->size &
3146 MVPP2_TXQ_DESC_SIZE_MASK);
3147 mvpp2_write(port->priv, MVPP2_TXQ_INDEX_REG, 0);
3148 mvpp2_write(port->priv, MVPP2_TXQ_RSVD_CLR_REG,
3149 txq->id << MVPP2_TXQ_RSVD_CLR_OFFSET);
3150 val = mvpp2_read(port->priv, MVPP2_TXQ_PENDING_REG);
3151 val &= ~MVPP2_TXQ_PENDING_MASK;
3152 mvpp2_write(port->priv, MVPP2_TXQ_PENDING_REG, val);
3154 /* Calculate base address in prefetch buffer. We reserve 16 descriptors
3155 * for each existing TXQ.
3156 * TCONTS for PON port must be continuous from 0 to MVPP2_MAX_TCONT
3157 * GBE ports assumed to be continious from 0 to MVPP2_MAX_PORTS
3160 desc = (port->id * MVPP2_MAX_TXQ * desc_per_txq) +
3161 (txq->log_id * desc_per_txq);
3163 mvpp2_write(port->priv, MVPP2_TXQ_PREF_BUF_REG,
3164 MVPP2_PREF_BUF_PTR(desc) | MVPP2_PREF_BUF_SIZE_16 |
3165 MVPP2_PREF_BUF_THRESH(desc_per_txq/2));
3167 /* WRR / EJP configuration - indirect access */
3168 tx_port_num = mvpp2_egress_port(port);
3169 mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num);
3171 val = mvpp2_read(port->priv, MVPP2_TXQ_SCHED_REFILL_REG(txq->log_id));
3172 val &= ~MVPP2_TXQ_REFILL_PERIOD_ALL_MASK;
3173 val |= MVPP2_TXQ_REFILL_PERIOD_MASK(1);
3174 val |= MVPP2_TXQ_REFILL_TOKENS_ALL_MASK;
3175 mvpp2_write(port->priv, MVPP2_TXQ_SCHED_REFILL_REG(txq->log_id), val);
3177 val = MVPP2_TXQ_TOKEN_SIZE_MAX;
3178 mvpp2_write(port->priv, MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(txq->log_id),
3181 for_each_present_cpu(cpu) {
3182 txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
3183 txq_pcpu->size = txq->size;
3189 /* Free allocated TXQ resources */
3190 static void mvpp2_txq_deinit(struct mvpp2_port *port,
3191 struct mvpp2_tx_queue *txq)
3195 txq->next_desc_to_proc = 0;
3198 /* Set minimum bandwidth for disabled TXQs */
3199 mvpp2_write(port->priv, MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(txq->id), 0);
3201 /* Set Tx descriptors queue starting address and size */
3202 mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
3203 mvpp2_write(port->priv, MVPP2_TXQ_DESC_ADDR_REG, 0);
3204 mvpp2_write(port->priv, MVPP2_TXQ_DESC_SIZE_REG, 0);
3207 /* Cleanup Tx ports */
3208 static void mvpp2_txq_clean(struct mvpp2_port *port, struct mvpp2_tx_queue *txq)
3210 struct mvpp2_txq_pcpu *txq_pcpu;
3211 int delay, pending, cpu;
3214 mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
3215 val = mvpp2_read(port->priv, MVPP2_TXQ_PREF_BUF_REG);
3216 val |= MVPP2_TXQ_DRAIN_EN_MASK;
3217 mvpp2_write(port->priv, MVPP2_TXQ_PREF_BUF_REG, val);
3219 /* The napi queue has been stopped so wait for all packets
3220 * to be transmitted.
3224 if (delay >= MVPP2_TX_PENDING_TIMEOUT_MSEC) {
3225 netdev_warn(port->dev,
3226 "port %d: cleaning queue %d timed out\n",
3227 port->id, txq->log_id);
3233 pending = mvpp2_txq_pend_desc_num_get(port, txq);
3236 val &= ~MVPP2_TXQ_DRAIN_EN_MASK;
3237 mvpp2_write(port->priv, MVPP2_TXQ_PREF_BUF_REG, val);
3239 for_each_present_cpu(cpu) {
3240 txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
3242 /* Release all packets */
3243 mvpp2_txq_bufs_free(port, txq, txq_pcpu, txq_pcpu->count);
3246 txq_pcpu->count = 0;
3247 txq_pcpu->txq_put_index = 0;
3248 txq_pcpu->txq_get_index = 0;
3252 /* Cleanup all Tx queues */
3253 static void mvpp2_cleanup_txqs(struct mvpp2_port *port)
3255 struct mvpp2_tx_queue *txq;
3259 val = mvpp2_read(port->priv, MVPP2_TX_PORT_FLUSH_REG);
3261 /* Reset Tx ports and delete Tx queues */
3262 val |= MVPP2_TX_PORT_FLUSH_MASK(port->id);
3263 mvpp2_write(port->priv, MVPP2_TX_PORT_FLUSH_REG, val);
3265 for (queue = 0; queue < txq_number; queue++) {
3266 txq = port->txqs[queue];
3267 mvpp2_txq_clean(port, txq);
3268 mvpp2_txq_deinit(port, txq);
3271 mvpp2_txq_sent_counter_clear(port);
3273 val &= ~MVPP2_TX_PORT_FLUSH_MASK(port->id);
3274 mvpp2_write(port->priv, MVPP2_TX_PORT_FLUSH_REG, val);
3277 /* Cleanup all Rx queues */
3278 static void mvpp2_cleanup_rxqs(struct mvpp2_port *port)
3282 for (queue = 0; queue < rxq_number; queue++)
3283 mvpp2_rxq_deinit(port, port->rxqs[queue]);
3286 /* Init all Rx queues for port */
3287 static int mvpp2_setup_rxqs(struct mvpp2_port *port)
3291 for (queue = 0; queue < rxq_number; queue++) {
3292 err = mvpp2_rxq_init(port, port->rxqs[queue]);
3299 mvpp2_cleanup_rxqs(port);
3303 /* Init all tx queues for port */
3304 static int mvpp2_setup_txqs(struct mvpp2_port *port)
3306 struct mvpp2_tx_queue *txq;
3309 for (queue = 0; queue < txq_number; queue++) {
3310 txq = port->txqs[queue];
3311 err = mvpp2_txq_init(port, txq);
3316 mvpp2_txq_sent_counter_clear(port);
3320 mvpp2_cleanup_txqs(port);
3325 static void mvpp2_link_event(struct mvpp2_port *port)
3327 struct phy_device *phydev = port->phy_dev;
3328 int status_change = 0;
3332 if ((port->speed != phydev->speed) ||
3333 (port->duplex != phydev->duplex)) {
3336 val = readl(port->base + MVPP2_GMAC_AUTONEG_CONFIG);
3337 val &= ~(MVPP2_GMAC_CONFIG_MII_SPEED |
3338 MVPP2_GMAC_CONFIG_GMII_SPEED |
3339 MVPP2_GMAC_CONFIG_FULL_DUPLEX |
3340 MVPP2_GMAC_AN_SPEED_EN |
3341 MVPP2_GMAC_AN_DUPLEX_EN);
3344 val |= MVPP2_GMAC_CONFIG_FULL_DUPLEX;
3346 if (phydev->speed == SPEED_1000)
3347 val |= MVPP2_GMAC_CONFIG_GMII_SPEED;
3348 else if (phydev->speed == SPEED_100)
3349 val |= MVPP2_GMAC_CONFIG_MII_SPEED;
3351 writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
3353 port->duplex = phydev->duplex;
3354 port->speed = phydev->speed;
3358 if (phydev->link != port->link) {
3359 if (!phydev->link) {
3364 port->link = phydev->link;
3368 if (status_change) {
3370 val = readl(port->base + MVPP2_GMAC_AUTONEG_CONFIG);
3371 val |= (MVPP2_GMAC_FORCE_LINK_PASS |
3372 MVPP2_GMAC_FORCE_LINK_DOWN);
3373 writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
3374 mvpp2_egress_enable(port);
3375 mvpp2_ingress_enable(port);
3377 mvpp2_ingress_disable(port);
3378 mvpp2_egress_disable(port);
3383 /* Main RX/TX processing routines */
3385 /* Display more error info */
3386 static void mvpp2_rx_error(struct mvpp2_port *port,
3387 struct mvpp2_rx_desc *rx_desc)
3389 u32 status = mvpp2_rxdesc_status_get(port, rx_desc);
3390 size_t sz = mvpp2_rxdesc_size_get(port, rx_desc);
3392 switch (status & MVPP2_RXD_ERR_CODE_MASK) {
3393 case MVPP2_RXD_ERR_CRC:
3394 netdev_err(port->dev, "bad rx status %08x (crc error), size=%zu\n",
3397 case MVPP2_RXD_ERR_OVERRUN:
3398 netdev_err(port->dev, "bad rx status %08x (overrun error), size=%zu\n",
3401 case MVPP2_RXD_ERR_RESOURCE:
3402 netdev_err(port->dev, "bad rx status %08x (resource error), size=%zu\n",
3408 /* Reuse skb if possible, or allocate a new skb and add it to BM pool */
3409 static int mvpp2_rx_refill(struct mvpp2_port *port,
3410 struct mvpp2_bm_pool *bm_pool,
3411 u32 bm, dma_addr_t dma_addr)
3413 mvpp2_pool_refill(port, bm, dma_addr, (unsigned long)dma_addr);
3417 /* Set hw internals when starting port */
3418 static void mvpp2_start_dev(struct mvpp2_port *port)
3420 mvpp2_gmac_max_rx_size_set(port);
3421 mvpp2_txp_max_tx_size_set(port);
3423 mvpp2_port_enable(port);
3426 /* Set hw internals when stopping port */
3427 static void mvpp2_stop_dev(struct mvpp2_port *port)
3429 /* Stop new packets from arriving to RXQs */
3430 mvpp2_ingress_disable(port);
3432 mvpp2_egress_disable(port);
3433 mvpp2_port_disable(port);
3436 static int mvpp2_phy_connect(struct udevice *dev, struct mvpp2_port *port)
3438 struct phy_device *phy_dev;
3440 if (!port->init || port->link == 0) {
3441 phy_dev = phy_connect(port->priv->bus, port->phyaddr, dev,
3442 port->phy_interface);
3443 port->phy_dev = phy_dev;
3445 netdev_err(port->dev, "cannot connect to phy\n");
3448 phy_dev->supported &= PHY_GBIT_FEATURES;
3449 phy_dev->advertising = phy_dev->supported;
3451 port->phy_dev = phy_dev;
3456 phy_config(phy_dev);
3457 phy_startup(phy_dev);
3458 if (!phy_dev->link) {
3459 printf("%s: No link\n", phy_dev->dev->name);
3465 mvpp2_egress_enable(port);
3466 mvpp2_ingress_enable(port);
3472 static int mvpp2_open(struct udevice *dev, struct mvpp2_port *port)
3474 unsigned char mac_bcast[ETH_ALEN] = {
3475 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
3478 err = mvpp2_prs_mac_da_accept(port->priv, port->id, mac_bcast, true);
3480 netdev_err(dev, "mvpp2_prs_mac_da_accept BC failed\n");
3483 err = mvpp2_prs_mac_da_accept(port->priv, port->id,
3484 port->dev_addr, true);
3486 netdev_err(dev, "mvpp2_prs_mac_da_accept MC failed\n");
3489 err = mvpp2_prs_def_flow(port);
3491 netdev_err(dev, "mvpp2_prs_def_flow failed\n");
3495 /* Allocate the Rx/Tx queues */
3496 err = mvpp2_setup_rxqs(port);
3498 netdev_err(port->dev, "cannot allocate Rx queues\n");
3502 err = mvpp2_setup_txqs(port);
3504 netdev_err(port->dev, "cannot allocate Tx queues\n");
3508 err = mvpp2_phy_connect(dev, port);
3512 mvpp2_link_event(port);
3514 mvpp2_start_dev(port);
3519 /* No Device ops here in U-Boot */
3521 /* Driver initialization */
3523 static void mvpp2_port_power_up(struct mvpp2_port *port)
3525 mvpp2_port_mii_set(port);
3526 mvpp2_port_periodic_xon_disable(port);
3527 mvpp2_port_fc_adv_enable(port);
3528 mvpp2_port_reset(port);
3531 /* Initialize port HW */
3532 static int mvpp2_port_init(struct udevice *dev, struct mvpp2_port *port)
3534 struct mvpp2 *priv = port->priv;
3535 struct mvpp2_txq_pcpu *txq_pcpu;
3536 int queue, cpu, err;
3538 if (port->first_rxq + rxq_number > MVPP2_RXQ_TOTAL_NUM)
3542 mvpp2_egress_disable(port);
3543 mvpp2_port_disable(port);
3545 port->txqs = devm_kcalloc(dev, txq_number, sizeof(*port->txqs),
3550 /* Associate physical Tx queues to this port and initialize.
3551 * The mapping is predefined.
3553 for (queue = 0; queue < txq_number; queue++) {
3554 int queue_phy_id = mvpp2_txq_phys(port->id, queue);
3555 struct mvpp2_tx_queue *txq;
3557 txq = devm_kzalloc(dev, sizeof(*txq), GFP_KERNEL);
3561 txq->pcpu = devm_kzalloc(dev, sizeof(struct mvpp2_txq_pcpu),
3566 txq->id = queue_phy_id;
3567 txq->log_id = queue;
3568 txq->done_pkts_coal = MVPP2_TXDONE_COAL_PKTS_THRESH;
3569 for_each_present_cpu(cpu) {
3570 txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
3571 txq_pcpu->cpu = cpu;
3574 port->txqs[queue] = txq;
3577 port->rxqs = devm_kcalloc(dev, rxq_number, sizeof(*port->rxqs),
3582 /* Allocate and initialize Rx queue for this port */
3583 for (queue = 0; queue < rxq_number; queue++) {
3584 struct mvpp2_rx_queue *rxq;
3586 /* Map physical Rx queue to port's logical Rx queue */
3587 rxq = devm_kzalloc(dev, sizeof(*rxq), GFP_KERNEL);
3590 /* Map this Rx queue to a physical queue */
3591 rxq->id = port->first_rxq + queue;
3592 rxq->port = port->id;
3593 rxq->logic_rxq = queue;
3595 port->rxqs[queue] = rxq;
3598 /* Configure Rx queue group interrupt for this port */
3599 mvpp2_write(priv, MVPP2_ISR_RXQ_GROUP_REG(port->id), CONFIG_MV_ETH_RXQ);
3601 /* Create Rx descriptor rings */
3602 for (queue = 0; queue < rxq_number; queue++) {
3603 struct mvpp2_rx_queue *rxq = port->rxqs[queue];
3605 rxq->size = port->rx_ring_size;
3606 rxq->pkts_coal = MVPP2_RX_COAL_PKTS;
3607 rxq->time_coal = MVPP2_RX_COAL_USEC;
3610 mvpp2_ingress_disable(port);
3612 /* Port default configuration */
3613 mvpp2_defaults_set(port);
3615 /* Port's classifier configuration */
3616 mvpp2_cls_oversize_rxq_set(port);
3617 mvpp2_cls_port_config(port);
3619 /* Provide an initial Rx packet size */
3620 port->pkt_size = MVPP2_RX_PKT_SIZE(PKTSIZE_ALIGN);
3622 /* Initialize pools for swf */
3623 err = mvpp2_swf_bm_pool_init(port);
3630 /* Ports initialization */
3631 static int mvpp2_port_probe(struct udevice *dev,
3632 struct mvpp2_port *port,
3635 int *next_first_rxq)
3640 const char *phy_mode_str;
3642 int priv_common_regs_num = 2;
3645 phy_node = fdtdec_lookup_phandle(gd->fdt_blob, port_node, "phy");
3647 dev_err(&pdev->dev, "missing phy\n");
3651 phy_mode_str = fdt_getprop(gd->fdt_blob, port_node, "phy-mode", NULL);
3653 phy_mode = phy_get_interface_by_name(phy_mode_str);
3654 if (phy_mode == -1) {
3655 dev_err(&pdev->dev, "incorrect phy mode\n");
3659 id = fdtdec_get_int(gd->fdt_blob, port_node, "port-id", -1);
3661 dev_err(&pdev->dev, "missing port-id value\n");
3665 phyaddr = fdtdec_get_int(gd->fdt_blob, phy_node, "reg", 0);
3669 port->first_rxq = *next_first_rxq;
3670 port->phy_node = phy_node;
3671 port->phy_interface = phy_mode;
3672 port->phyaddr = phyaddr;
3674 port->base = (void __iomem *)dev_get_addr_index(dev->parent,
3675 priv_common_regs_num
3677 if (IS_ERR(port->base))
3678 return PTR_ERR(port->base);
3680 port->tx_ring_size = MVPP2_MAX_TXD;
3681 port->rx_ring_size = MVPP2_MAX_RXD;
3683 err = mvpp2_port_init(dev, port);
3685 dev_err(&pdev->dev, "failed to init port %d\n", id);
3688 mvpp2_port_power_up(port);
3690 /* Increment the first Rx queue number to be used by the next port */
3691 *next_first_rxq += CONFIG_MV_ETH_RXQ;
3692 priv->port_list[id] = port;
3696 /* Initialize decoding windows */
3697 static void mvpp2_conf_mbus_windows(const struct mbus_dram_target_info *dram,
3703 for (i = 0; i < 6; i++) {
3704 mvpp2_write(priv, MVPP2_WIN_BASE(i), 0);
3705 mvpp2_write(priv, MVPP2_WIN_SIZE(i), 0);
3708 mvpp2_write(priv, MVPP2_WIN_REMAP(i), 0);
3713 for (i = 0; i < dram->num_cs; i++) {
3714 const struct mbus_dram_window *cs = dram->cs + i;
3716 mvpp2_write(priv, MVPP2_WIN_BASE(i),
3717 (cs->base & 0xffff0000) | (cs->mbus_attr << 8) |
3718 dram->mbus_dram_target_id);
3720 mvpp2_write(priv, MVPP2_WIN_SIZE(i),
3721 (cs->size - 1) & 0xffff0000);
3723 win_enable |= (1 << i);
3726 mvpp2_write(priv, MVPP2_BASE_ADDR_ENABLE, win_enable);
3729 /* Initialize Rx FIFO's */
3730 static void mvpp2_rx_fifo_init(struct mvpp2 *priv)
3734 for (port = 0; port < MVPP2_MAX_PORTS; port++) {
3735 mvpp2_write(priv, MVPP2_RX_DATA_FIFO_SIZE_REG(port),
3736 MVPP2_RX_FIFO_PORT_DATA_SIZE);
3737 mvpp2_write(priv, MVPP2_RX_ATTR_FIFO_SIZE_REG(port),
3738 MVPP2_RX_FIFO_PORT_ATTR_SIZE);
3741 mvpp2_write(priv, MVPP2_RX_MIN_PKT_SIZE_REG,
3742 MVPP2_RX_FIFO_PORT_MIN_PKT);
3743 mvpp2_write(priv, MVPP2_RX_FIFO_INIT_REG, 0x1);
3746 /* Initialize network controller common part HW */
3747 static int mvpp2_init(struct udevice *dev, struct mvpp2 *priv)
3749 const struct mbus_dram_target_info *dram_target_info;
3753 /* Checks for hardware constraints (U-Boot uses only one rxq) */
3754 if ((rxq_number > MVPP2_MAX_RXQ) || (txq_number > MVPP2_MAX_TXQ)) {
3755 dev_err(&pdev->dev, "invalid queue size parameter\n");
3759 /* MBUS windows configuration */
3760 dram_target_info = mvebu_mbus_dram_info();
3761 if (dram_target_info)
3762 mvpp2_conf_mbus_windows(dram_target_info, priv);
3764 /* Disable HW PHY polling */
3765 val = readl(priv->lms_base + MVPP2_PHY_AN_CFG0_REG);
3766 val |= MVPP2_PHY_AN_STOP_SMI0_MASK;
3767 writel(val, priv->lms_base + MVPP2_PHY_AN_CFG0_REG);
3769 /* Allocate and initialize aggregated TXQs */
3770 priv->aggr_txqs = devm_kcalloc(dev, num_present_cpus(),
3771 sizeof(struct mvpp2_tx_queue),
3773 if (!priv->aggr_txqs)
3776 for_each_present_cpu(i) {
3777 priv->aggr_txqs[i].id = i;
3778 priv->aggr_txqs[i].size = MVPP2_AGGR_TXQ_SIZE;
3779 err = mvpp2_aggr_txq_init(dev, &priv->aggr_txqs[i],
3780 MVPP2_AGGR_TXQ_SIZE, i, priv);
3786 mvpp2_rx_fifo_init(priv);
3788 /* Reset Rx queue group interrupt configuration */
3789 for (i = 0; i < MVPP2_MAX_PORTS; i++)
3790 mvpp2_write(priv, MVPP2_ISR_RXQ_GROUP_REG(i),
3793 writel(MVPP2_EXT_GLOBAL_CTRL_DEFAULT,
3794 priv->lms_base + MVPP2_MNG_EXTENDED_GLOBAL_CTRL_REG);
3796 /* Allow cache snoop when transmiting packets */
3797 mvpp2_write(priv, MVPP2_TX_SNOOP_REG, 0x1);
3799 /* Buffer Manager initialization */
3800 err = mvpp2_bm_init(dev, priv);
3804 /* Parser default initialization */
3805 err = mvpp2_prs_default_init(dev, priv);
3809 /* Classifier default initialization */
3810 mvpp2_cls_init(priv);
3815 /* SMI / MDIO functions */
3817 static int smi_wait_ready(struct mvpp2 *priv)
3819 u32 timeout = MVPP2_SMI_TIMEOUT;
3822 /* wait till the SMI is not busy */
3824 /* read smi register */
3825 smi_reg = readl(priv->lms_base + MVPP2_SMI);
3826 if (timeout-- == 0) {
3827 printf("Error: SMI busy timeout\n");
3830 } while (smi_reg & MVPP2_SMI_BUSY);
3836 * mpp2_mdio_read - miiphy_read callback function.
3838 * Returns 16bit phy register value, or 0xffff on error
3840 static int mpp2_mdio_read(struct mii_dev *bus, int addr, int devad, int reg)
3842 struct mvpp2 *priv = bus->priv;
3846 /* check parameters */
3847 if (addr > MVPP2_PHY_ADDR_MASK) {
3848 printf("Error: Invalid PHY address %d\n", addr);
3852 if (reg > MVPP2_PHY_REG_MASK) {
3853 printf("Err: Invalid register offset %d\n", reg);
3857 /* wait till the SMI is not busy */
3858 if (smi_wait_ready(priv) < 0)
3861 /* fill the phy address and regiser offset and read opcode */
3862 smi_reg = (addr << MVPP2_SMI_DEV_ADDR_OFFS)
3863 | (reg << MVPP2_SMI_REG_ADDR_OFFS)
3864 | MVPP2_SMI_OPCODE_READ;
3866 /* write the smi register */
3867 writel(smi_reg, priv->lms_base + MVPP2_SMI);
3869 /* wait till read value is ready */
3870 timeout = MVPP2_SMI_TIMEOUT;
3873 /* read smi register */
3874 smi_reg = readl(priv->lms_base + MVPP2_SMI);
3875 if (timeout-- == 0) {
3876 printf("Err: SMI read ready timeout\n");
3879 } while (!(smi_reg & MVPP2_SMI_READ_VALID));
3881 /* Wait for the data to update in the SMI register */
3882 for (timeout = 0; timeout < MVPP2_SMI_TIMEOUT; timeout++)
3885 return readl(priv->lms_base + MVPP2_SMI) & MVPP2_SMI_DATA_MASK;
3889 * mpp2_mdio_write - miiphy_write callback function.
3891 * Returns 0 if write succeed, -EINVAL on bad parameters
3894 static int mpp2_mdio_write(struct mii_dev *bus, int addr, int devad, int reg,
3897 struct mvpp2 *priv = bus->priv;
3900 /* check parameters */
3901 if (addr > MVPP2_PHY_ADDR_MASK) {
3902 printf("Error: Invalid PHY address %d\n", addr);
3906 if (reg > MVPP2_PHY_REG_MASK) {
3907 printf("Err: Invalid register offset %d\n", reg);
3911 /* wait till the SMI is not busy */
3912 if (smi_wait_ready(priv) < 0)
3915 /* fill the phy addr and reg offset and write opcode and data */
3916 smi_reg = value << MVPP2_SMI_DATA_OFFS;
3917 smi_reg |= (addr << MVPP2_SMI_DEV_ADDR_OFFS)
3918 | (reg << MVPP2_SMI_REG_ADDR_OFFS);
3919 smi_reg &= ~MVPP2_SMI_OPCODE_READ;
3921 /* write the smi register */
3922 writel(smi_reg, priv->lms_base + MVPP2_SMI);
3927 static int mvpp2_recv(struct udevice *dev, int flags, uchar **packetp)
3929 struct mvpp2_port *port = dev_get_priv(dev);
3930 struct mvpp2_rx_desc *rx_desc;
3931 struct mvpp2_bm_pool *bm_pool;
3932 dma_addr_t dma_addr;
3934 int pool, rx_bytes, err;
3936 struct mvpp2_rx_queue *rxq;
3937 u32 cause_rx_tx, cause_rx, cause_misc;
3940 cause_rx_tx = mvpp2_read(port->priv,
3941 MVPP2_ISR_RX_TX_CAUSE_REG(port->id));
3942 cause_rx_tx &= ~MVPP2_CAUSE_TXQ_OCCUP_DESC_ALL_MASK;
3943 cause_misc = cause_rx_tx & MVPP2_CAUSE_MISC_SUM_MASK;
3944 if (!cause_rx_tx && !cause_misc)
3947 cause_rx = cause_rx_tx & MVPP2_CAUSE_RXQ_OCCUP_DESC_ALL_MASK;
3949 /* Process RX packets */
3950 cause_rx |= port->pending_cause_rx;
3951 rxq = mvpp2_get_rx_queue(port, cause_rx);
3953 /* Get number of received packets and clamp the to-do */
3954 rx_received = mvpp2_rxq_received(port, rxq->id);
3956 /* Return if no packets are received */
3960 rx_desc = mvpp2_rxq_next_desc_get(rxq);
3961 rx_status = mvpp2_rxdesc_status_get(port, rx_desc);
3962 rx_bytes = mvpp2_rxdesc_size_get(port, rx_desc);
3963 rx_bytes -= MVPP2_MH_SIZE;
3964 dma_addr = mvpp2_rxdesc_dma_addr_get(port, rx_desc);
3966 bm = mvpp2_bm_cookie_build(port, rx_desc);
3967 pool = mvpp2_bm_cookie_pool_get(bm);
3968 bm_pool = &port->priv->bm_pools[pool];
3970 /* In case of an error, release the requested buffer pointer
3971 * to the Buffer Manager. This request process is controlled
3972 * by the hardware, and the information about the buffer is
3973 * comprised by the RX descriptor.
3975 if (rx_status & MVPP2_RXD_ERR_SUMMARY) {
3976 mvpp2_rx_error(port, rx_desc);
3977 /* Return the buffer to the pool */
3978 mvpp2_pool_refill(port, bm, dma_addr, dma_addr);
3982 err = mvpp2_rx_refill(port, bm_pool, bm, dma_addr);
3984 netdev_err(port->dev, "failed to refill BM pools\n");
3988 /* Update Rx queue management counters */
3990 mvpp2_rxq_status_update(port, rxq->id, 1, 1);
3992 /* give packet to stack - skip on first n bytes */
3993 data = (u8 *)dma_addr + 2 + 32;
3999 * No cache invalidation needed here, since the rx_buffer's are
4000 * located in a uncached memory region
4008 static void mvpp2_txq_drain(struct mvpp2_port *port, struct mvpp2_tx_queue *txq,
4013 mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
4014 val = mvpp2_read(port->priv, MVPP2_TXQ_PREF_BUF_REG);
4016 val |= MVPP2_TXQ_DRAIN_EN_MASK;
4018 val &= ~MVPP2_TXQ_DRAIN_EN_MASK;
4019 mvpp2_write(port->priv, MVPP2_TXQ_PREF_BUF_REG, val);
4022 static int mvpp2_send(struct udevice *dev, void *packet, int length)
4024 struct mvpp2_port *port = dev_get_priv(dev);
4025 struct mvpp2_tx_queue *txq, *aggr_txq;
4026 struct mvpp2_tx_desc *tx_desc;
4030 txq = port->txqs[0];
4031 aggr_txq = &port->priv->aggr_txqs[smp_processor_id()];
4033 /* Get a descriptor for the first part of the packet */
4034 tx_desc = mvpp2_txq_next_desc_get(aggr_txq);
4035 mvpp2_txdesc_txq_set(port, tx_desc, txq->id);
4036 mvpp2_txdesc_size_set(port, tx_desc, length);
4037 mvpp2_txdesc_offset_set(port, tx_desc,
4038 (dma_addr_t)packet & MVPP2_TX_DESC_ALIGN);
4039 mvpp2_txdesc_dma_addr_set(port, tx_desc,
4040 (dma_addr_t)packet & ~MVPP2_TX_DESC_ALIGN);
4041 /* First and Last descriptor */
4042 mvpp2_txdesc_cmd_set(port, tx_desc,
4043 MVPP2_TXD_L4_CSUM_NOT | MVPP2_TXD_IP_CSUM_DISABLE
4044 | MVPP2_TXD_F_DESC | MVPP2_TXD_L_DESC);
4047 flush_dcache_range((unsigned long)packet,
4048 (unsigned long)packet + ALIGN(length, PKTALIGN));
4050 /* Enable transmit */
4052 mvpp2_aggr_txq_pend_desc_add(port, 1);
4054 mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
4058 if (timeout++ > 10000) {
4059 printf("timeout: packet not sent from aggregated to phys TXQ\n");
4062 tx_done = mvpp2_txq_pend_desc_num_get(port, txq);
4065 /* Enable TXQ drain */
4066 mvpp2_txq_drain(port, txq, 1);
4070 if (timeout++ > 10000) {
4071 printf("timeout: packet not sent\n");
4074 tx_done = mvpp2_txq_sent_desc_proc(port, txq);
4077 /* Disable TXQ drain */
4078 mvpp2_txq_drain(port, txq, 0);
4083 static int mvpp2_start(struct udevice *dev)
4085 struct eth_pdata *pdata = dev_get_platdata(dev);
4086 struct mvpp2_port *port = dev_get_priv(dev);
4088 /* Load current MAC address */
4089 memcpy(port->dev_addr, pdata->enetaddr, ETH_ALEN);
4091 /* Reconfigure parser accept the original MAC address */
4092 mvpp2_prs_update_mac_da(port, port->dev_addr);
4094 mvpp2_port_power_up(port);
4096 mvpp2_open(dev, port);
4101 static void mvpp2_stop(struct udevice *dev)
4103 struct mvpp2_port *port = dev_get_priv(dev);
4105 mvpp2_stop_dev(port);
4106 mvpp2_cleanup_rxqs(port);
4107 mvpp2_cleanup_txqs(port);
4110 static int mvpp2_probe(struct udevice *dev)
4112 struct mvpp2_port *port = dev_get_priv(dev);
4113 struct mvpp2 *priv = dev_get_priv(dev->parent);
4116 /* Initialize network controller */
4117 err = mvpp2_init(dev, priv);
4119 dev_err(&pdev->dev, "failed to initialize controller\n");
4123 return mvpp2_port_probe(dev, port, dev_of_offset(dev), priv,
4124 &buffer_loc.first_rxq);
4127 static const struct eth_ops mvpp2_ops = {
4128 .start = mvpp2_start,
4134 static struct driver mvpp2_driver = {
4137 .probe = mvpp2_probe,
4139 .priv_auto_alloc_size = sizeof(struct mvpp2_port),
4140 .platdata_auto_alloc_size = sizeof(struct eth_pdata),
4144 * Use a MISC device to bind the n instances (child nodes) of the
4145 * network base controller in UCLASS_ETH.
4147 static int mvpp2_base_probe(struct udevice *dev)
4149 struct mvpp2 *priv = dev_get_priv(dev);
4150 struct mii_dev *bus;
4155 /* Save hw-version */
4156 priv->hw_version = dev_get_driver_data(dev);
4159 * U-Boot special buffer handling:
4161 * Allocate buffer area for descs and rx_buffers. This is only
4162 * done once for all interfaces. As only one interface can
4163 * be active. Make this area DMA-safe by disabling the D-cache
4166 /* Align buffer area for descs and rx_buffers to 1MiB */
4167 bd_space = memalign(1 << MMU_SECTION_SHIFT, BD_SPACE);
4168 mmu_set_region_dcache_behaviour((unsigned long)bd_space,
4169 BD_SPACE, DCACHE_OFF);
4171 buffer_loc.aggr_tx_descs = (struct mvpp2_tx_desc *)bd_space;
4172 size += MVPP2_AGGR_TXQ_SIZE * MVPP2_DESC_ALIGNED_SIZE;
4174 buffer_loc.tx_descs =
4175 (struct mvpp2_tx_desc *)((unsigned long)bd_space + size);
4176 size += MVPP2_MAX_TXD * MVPP2_DESC_ALIGNED_SIZE;
4178 buffer_loc.rx_descs =
4179 (struct mvpp2_rx_desc *)((unsigned long)bd_space + size);
4180 size += MVPP2_MAX_RXD * MVPP2_DESC_ALIGNED_SIZE;
4182 for (i = 0; i < MVPP2_BM_POOLS_NUM; i++) {
4183 buffer_loc.bm_pool[i] =
4184 (unsigned long *)((unsigned long)bd_space + size);
4185 size += MVPP2_BM_POOL_SIZE_MAX * sizeof(u32);
4188 for (i = 0; i < MVPP2_BM_LONG_BUF_NUM; i++) {
4189 buffer_loc.rx_buffer[i] =
4190 (unsigned long *)((unsigned long)bd_space + size);
4191 size += RX_BUFFER_SIZE;
4194 /* Save base addresses for later use */
4195 priv->base = (void *)dev_get_addr_index(dev, 0);
4196 if (IS_ERR(priv->base))
4197 return PTR_ERR(priv->base);
4199 priv->lms_base = (void *)dev_get_addr_index(dev, 1);
4200 if (IS_ERR(priv->lms_base))
4201 return PTR_ERR(priv->lms_base);
4203 /* Finally create and register the MDIO bus driver */
4206 printf("Failed to allocate MDIO bus\n");
4210 bus->read = mpp2_mdio_read;
4211 bus->write = mpp2_mdio_write;
4212 snprintf(bus->name, sizeof(bus->name), dev->name);
4213 bus->priv = (void *)priv;
4216 return mdio_register(bus);
4219 static int mvpp2_base_bind(struct udevice *parent)
4221 const void *blob = gd->fdt_blob;
4222 int node = dev_of_offset(parent);
4223 struct uclass_driver *drv;
4224 struct udevice *dev;
4225 struct eth_pdata *plat;
4230 /* Lookup eth driver */
4231 drv = lists_uclass_lookup(UCLASS_ETH);
4233 puts("Cannot find eth driver\n");
4237 fdt_for_each_subnode(subnode, blob, node) {
4238 /* Skip disabled ports */
4239 if (!fdtdec_get_is_enabled(blob, subnode))
4242 plat = calloc(1, sizeof(*plat));
4246 id = fdtdec_get_int(blob, subnode, "port-id", -1);
4248 name = calloc(1, 16);
4249 sprintf(name, "mvpp2-%d", id);
4251 /* Create child device UCLASS_ETH and bind it */
4252 device_bind(parent, &mvpp2_driver, name, plat, subnode, &dev);
4253 dev_set_of_offset(dev, subnode);
4259 static const struct udevice_id mvpp2_ids[] = {
4261 .compatible = "marvell,armada-375-pp2",
4267 U_BOOT_DRIVER(mvpp2_base) = {
4268 .name = "mvpp2_base",
4270 .of_match = mvpp2_ids,
4271 .bind = mvpp2_base_bind,
4272 .probe = mvpp2_base_probe,
4273 .priv_auto_alloc_size = sizeof(struct mvpp2),