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11fdf7f2 TL |
1 | /* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0) |
2 | * | |
3 | * Copyright 2010-2016 Freescale Semiconductor Inc. | |
4 | * Copyright 2017 NXP | |
5 | * | |
6 | */ | |
7 | ||
8 | #include <sys/types.h> | |
9 | #include <sys/ioctl.h> | |
10 | #include <ifaddrs.h> | |
11 | ||
12 | /* This header declares the driver interface we implement */ | |
13 | #include <fman.h> | |
14 | #include <of.h> | |
9f95a23c | 15 | #include <rte_malloc.h> |
11fdf7f2 | 16 | #include <rte_dpaa_logs.h> |
9f95a23c | 17 | #include <rte_string_fns.h> |
11fdf7f2 TL |
18 | |
19 | #define QMI_PORT_REGS_OFFSET 0x400 | |
20 | ||
21 | /* CCSR map address to access ccsr based register */ | |
22 | void *fman_ccsr_map; | |
23 | /* fman version info */ | |
24 | u16 fman_ip_rev; | |
25 | static int get_once; | |
26 | u32 fman_dealloc_bufs_mask_hi; | |
27 | u32 fman_dealloc_bufs_mask_lo; | |
28 | ||
29 | int fman_ccsr_map_fd = -1; | |
30 | static COMPAT_LIST_HEAD(__ifs); | |
31 | ||
32 | /* This is the (const) global variable that callers have read-only access to. | |
33 | * Internally, we have read-write access directly to __ifs. | |
34 | */ | |
35 | const struct list_head *fman_if_list = &__ifs; | |
36 | ||
37 | static void | |
38 | if_destructor(struct __fman_if *__if) | |
39 | { | |
40 | struct fman_if_bpool *bp, *tmpbp; | |
41 | ||
42 | if (!__if) | |
43 | return; | |
44 | ||
45 | if (__if->__if.mac_type == fman_offline) | |
46 | goto cleanup; | |
47 | ||
48 | list_for_each_entry_safe(bp, tmpbp, &__if->__if.bpool_list, node) { | |
49 | list_del(&bp->node); | |
50 | free(bp); | |
51 | } | |
52 | cleanup: | |
53 | free(__if); | |
54 | } | |
55 | ||
56 | static int | |
57 | fman_get_ip_rev(const struct device_node *fman_node) | |
58 | { | |
59 | const uint32_t *fman_addr; | |
60 | uint64_t phys_addr; | |
61 | uint64_t regs_size; | |
62 | uint32_t ip_rev_1; | |
63 | int _errno; | |
64 | ||
65 | fman_addr = of_get_address(fman_node, 0, ®s_size, NULL); | |
66 | if (!fman_addr) { | |
67 | pr_err("of_get_address cannot return fman address\n"); | |
68 | return -EINVAL; | |
69 | } | |
70 | phys_addr = of_translate_address(fman_node, fman_addr); | |
71 | if (!phys_addr) { | |
72 | pr_err("of_translate_address failed\n"); | |
73 | return -EINVAL; | |
74 | } | |
75 | fman_ccsr_map = mmap(NULL, regs_size, PROT_READ | PROT_WRITE, | |
76 | MAP_SHARED, fman_ccsr_map_fd, phys_addr); | |
77 | if (fman_ccsr_map == MAP_FAILED) { | |
78 | pr_err("Can not map FMan ccsr base"); | |
79 | return -EINVAL; | |
80 | } | |
81 | ||
82 | ip_rev_1 = in_be32(fman_ccsr_map + FMAN_IP_REV_1); | |
83 | fman_ip_rev = (ip_rev_1 & FMAN_IP_REV_1_MAJOR_MASK) >> | |
84 | FMAN_IP_REV_1_MAJOR_SHIFT; | |
85 | ||
86 | _errno = munmap(fman_ccsr_map, regs_size); | |
87 | if (_errno) | |
88 | pr_err("munmap() of FMan ccsr failed"); | |
89 | ||
90 | return 0; | |
91 | } | |
92 | ||
93 | static int | |
94 | fman_get_mac_index(uint64_t regs_addr_host, uint8_t *mac_idx) | |
95 | { | |
96 | int ret = 0; | |
97 | ||
98 | /* | |
99 | * MAC1 : E_0000h | |
100 | * MAC2 : E_2000h | |
101 | * MAC3 : E_4000h | |
102 | * MAC4 : E_6000h | |
103 | * MAC5 : E_8000h | |
104 | * MAC6 : E_A000h | |
105 | * MAC7 : E_C000h | |
106 | * MAC8 : E_E000h | |
107 | * MAC9 : F_0000h | |
108 | * MAC10: F_2000h | |
109 | */ | |
110 | switch (regs_addr_host) { | |
111 | case 0xE0000: | |
112 | *mac_idx = 1; | |
113 | break; | |
114 | case 0xE2000: | |
115 | *mac_idx = 2; | |
116 | break; | |
117 | case 0xE4000: | |
118 | *mac_idx = 3; | |
119 | break; | |
120 | case 0xE6000: | |
121 | *mac_idx = 4; | |
122 | break; | |
123 | case 0xE8000: | |
124 | *mac_idx = 5; | |
125 | break; | |
126 | case 0xEA000: | |
127 | *mac_idx = 6; | |
128 | break; | |
129 | case 0xEC000: | |
130 | *mac_idx = 7; | |
131 | break; | |
132 | case 0xEE000: | |
133 | *mac_idx = 8; | |
134 | break; | |
135 | case 0xF0000: | |
136 | *mac_idx = 9; | |
137 | break; | |
138 | case 0xF2000: | |
139 | *mac_idx = 10; | |
140 | break; | |
141 | default: | |
142 | ret = -EINVAL; | |
143 | } | |
144 | ||
145 | return ret; | |
146 | } | |
147 | ||
148 | static int | |
149 | fman_if_init(const struct device_node *dpa_node) | |
150 | { | |
151 | const char *rprop, *mprop; | |
152 | uint64_t phys_addr; | |
153 | struct __fman_if *__if; | |
154 | struct fman_if_bpool *bpool; | |
155 | ||
156 | const phandle *mac_phandle, *ports_phandle, *pools_phandle; | |
157 | const phandle *tx_channel_id = NULL, *mac_addr, *cell_idx; | |
158 | const phandle *rx_phandle, *tx_phandle; | |
159 | uint64_t tx_phandle_host[4] = {0}; | |
160 | uint64_t rx_phandle_host[4] = {0}; | |
161 | uint64_t regs_addr_host = 0; | |
162 | uint64_t cell_idx_host = 0; | |
163 | ||
164 | const struct device_node *mac_node = NULL, *tx_node; | |
165 | const struct device_node *pool_node, *fman_node, *rx_node; | |
166 | const uint32_t *regs_addr = NULL; | |
167 | const char *mname, *fname; | |
168 | const char *dname = dpa_node->full_name; | |
169 | size_t lenp; | |
170 | int _errno; | |
171 | const char *char_prop; | |
172 | uint32_t na; | |
173 | ||
174 | if (of_device_is_available(dpa_node) == false) | |
175 | return 0; | |
176 | ||
177 | rprop = "fsl,qman-frame-queues-rx"; | |
178 | mprop = "fsl,fman-mac"; | |
179 | ||
180 | /* Allocate an object for this network interface */ | |
9f95a23c | 181 | __if = rte_malloc(NULL, sizeof(*__if), RTE_CACHE_LINE_SIZE); |
11fdf7f2 TL |
182 | if (!__if) { |
183 | FMAN_ERR(-ENOMEM, "malloc(%zu)\n", sizeof(*__if)); | |
184 | goto err; | |
185 | } | |
186 | memset(__if, 0, sizeof(*__if)); | |
187 | INIT_LIST_HEAD(&__if->__if.bpool_list); | |
9f95a23c | 188 | strlcpy(__if->node_path, dpa_node->full_name, PATH_MAX - 1); |
11fdf7f2 TL |
189 | __if->node_path[PATH_MAX - 1] = '\0'; |
190 | ||
191 | /* Obtain the MAC node used by this interface except macless */ | |
192 | mac_phandle = of_get_property(dpa_node, mprop, &lenp); | |
193 | if (!mac_phandle) { | |
194 | FMAN_ERR(-EINVAL, "%s: no %s\n", dname, mprop); | |
195 | goto err; | |
196 | } | |
197 | assert(lenp == sizeof(phandle)); | |
198 | mac_node = of_find_node_by_phandle(*mac_phandle); | |
199 | if (!mac_node) { | |
200 | FMAN_ERR(-ENXIO, "%s: bad 'fsl,fman-mac\n", dname); | |
201 | goto err; | |
202 | } | |
203 | mname = mac_node->full_name; | |
204 | ||
205 | /* Map the CCSR regs for the MAC node */ | |
206 | regs_addr = of_get_address(mac_node, 0, &__if->regs_size, NULL); | |
207 | if (!regs_addr) { | |
208 | FMAN_ERR(-EINVAL, "of_get_address(%s)\n", mname); | |
209 | goto err; | |
210 | } | |
211 | phys_addr = of_translate_address(mac_node, regs_addr); | |
212 | if (!phys_addr) { | |
213 | FMAN_ERR(-EINVAL, "of_translate_address(%s, %p)\n", | |
214 | mname, regs_addr); | |
215 | goto err; | |
216 | } | |
217 | __if->ccsr_map = mmap(NULL, __if->regs_size, | |
218 | PROT_READ | PROT_WRITE, MAP_SHARED, | |
219 | fman_ccsr_map_fd, phys_addr); | |
220 | if (__if->ccsr_map == MAP_FAILED) { | |
221 | FMAN_ERR(-errno, "mmap(0x%"PRIx64")\n", phys_addr); | |
222 | goto err; | |
223 | } | |
224 | na = of_n_addr_cells(mac_node); | |
225 | /* Get rid of endianness (issues). Convert to host byte order */ | |
226 | regs_addr_host = of_read_number(regs_addr, na); | |
227 | ||
228 | ||
229 | /* Get the index of the Fman this i/f belongs to */ | |
230 | fman_node = of_get_parent(mac_node); | |
231 | na = of_n_addr_cells(mac_node); | |
232 | if (!fman_node) { | |
233 | FMAN_ERR(-ENXIO, "of_get_parent(%s)\n", mname); | |
234 | goto err; | |
235 | } | |
236 | fname = fman_node->full_name; | |
237 | cell_idx = of_get_property(fman_node, "cell-index", &lenp); | |
238 | if (!cell_idx) { | |
239 | FMAN_ERR(-ENXIO, "%s: no cell-index)\n", fname); | |
240 | goto err; | |
241 | } | |
242 | assert(lenp == sizeof(*cell_idx)); | |
243 | cell_idx_host = of_read_number(cell_idx, lenp / sizeof(phandle)); | |
244 | __if->__if.fman_idx = cell_idx_host; | |
245 | if (!get_once) { | |
246 | _errno = fman_get_ip_rev(fman_node); | |
247 | if (_errno) { | |
248 | FMAN_ERR(-ENXIO, "%s: ip_rev is not available\n", | |
249 | fname); | |
250 | goto err; | |
251 | } | |
252 | } | |
253 | ||
254 | if (fman_ip_rev >= FMAN_V3) { | |
255 | /* | |
256 | * Set A2V, OVOM, EBD bits in contextA to allow external | |
257 | * buffer deallocation by fman. | |
258 | */ | |
259 | fman_dealloc_bufs_mask_hi = FMAN_V3_CONTEXTA_EN_A2V | | |
260 | FMAN_V3_CONTEXTA_EN_OVOM; | |
261 | fman_dealloc_bufs_mask_lo = FMAN_V3_CONTEXTA_EN_EBD; | |
262 | } else { | |
263 | fman_dealloc_bufs_mask_hi = 0; | |
264 | fman_dealloc_bufs_mask_lo = 0; | |
265 | } | |
266 | /* Is the MAC node 1G, 10G? */ | |
267 | __if->__if.is_memac = 0; | |
268 | ||
269 | if (of_device_is_compatible(mac_node, "fsl,fman-1g-mac")) | |
270 | __if->__if.mac_type = fman_mac_1g; | |
271 | else if (of_device_is_compatible(mac_node, "fsl,fman-10g-mac")) | |
272 | __if->__if.mac_type = fman_mac_10g; | |
273 | else if (of_device_is_compatible(mac_node, "fsl,fman-memac")) { | |
274 | __if->__if.is_memac = 1; | |
275 | char_prop = of_get_property(mac_node, "phy-connection-type", | |
276 | NULL); | |
277 | if (!char_prop) { | |
278 | printf("memac: unknown MII type assuming 1G\n"); | |
279 | /* Right now forcing memac to 1g in case of error*/ | |
280 | __if->__if.mac_type = fman_mac_1g; | |
281 | } else { | |
282 | if (strstr(char_prop, "sgmii")) | |
283 | __if->__if.mac_type = fman_mac_1g; | |
284 | else if (strstr(char_prop, "rgmii")) { | |
285 | __if->__if.mac_type = fman_mac_1g; | |
286 | __if->__if.is_rgmii = 1; | |
287 | } else if (strstr(char_prop, "xgmii")) | |
288 | __if->__if.mac_type = fman_mac_10g; | |
289 | } | |
290 | } else { | |
291 | FMAN_ERR(-EINVAL, "%s: unknown MAC type\n", mname); | |
292 | goto err; | |
293 | } | |
294 | ||
295 | /* | |
296 | * For MAC ports, we cannot rely on cell-index. In | |
297 | * T2080, two of the 10G ports on single FMAN have same | |
298 | * duplicate cell-indexes as the other two 10G ports on | |
299 | * same FMAN. Hence, we now rely upon addresses of the | |
300 | * ports from device tree to deduce the index. | |
301 | */ | |
302 | ||
303 | _errno = fman_get_mac_index(regs_addr_host, &__if->__if.mac_idx); | |
304 | if (_errno) { | |
305 | FMAN_ERR(-EINVAL, "Invalid register address: %" PRIx64, | |
306 | regs_addr_host); | |
307 | goto err; | |
308 | } | |
309 | ||
310 | /* Extract the MAC address for private and shared interfaces */ | |
311 | mac_addr = of_get_property(mac_node, "local-mac-address", | |
312 | &lenp); | |
313 | if (!mac_addr) { | |
314 | FMAN_ERR(-EINVAL, "%s: no local-mac-address\n", | |
315 | mname); | |
316 | goto err; | |
317 | } | |
318 | memcpy(&__if->__if.mac_addr, mac_addr, ETHER_ADDR_LEN); | |
319 | ||
320 | /* Extract the Tx port (it's the second of the two port handles) | |
321 | * and get its channel ID | |
322 | */ | |
323 | ports_phandle = of_get_property(mac_node, "fsl,port-handles", | |
324 | &lenp); | |
325 | if (!ports_phandle) | |
326 | ports_phandle = of_get_property(mac_node, "fsl,fman-ports", | |
327 | &lenp); | |
328 | if (!ports_phandle) { | |
329 | FMAN_ERR(-EINVAL, "%s: no fsl,port-handles\n", | |
330 | mname); | |
331 | goto err; | |
332 | } | |
333 | assert(lenp == (2 * sizeof(phandle))); | |
334 | tx_node = of_find_node_by_phandle(ports_phandle[1]); | |
335 | if (!tx_node) { | |
336 | FMAN_ERR(-ENXIO, "%s: bad fsl,port-handle[1]\n", mname); | |
337 | goto err; | |
338 | } | |
339 | /* Extract the channel ID (from tx-port-handle) */ | |
340 | tx_channel_id = of_get_property(tx_node, "fsl,qman-channel-id", | |
341 | &lenp); | |
342 | if (!tx_channel_id) { | |
343 | FMAN_ERR(-EINVAL, "%s: no fsl-qman-channel-id\n", | |
344 | tx_node->full_name); | |
345 | goto err; | |
346 | } | |
347 | ||
348 | rx_node = of_find_node_by_phandle(ports_phandle[0]); | |
349 | if (!rx_node) { | |
350 | FMAN_ERR(-ENXIO, "%s: bad fsl,port-handle[0]\n", mname); | |
351 | goto err; | |
352 | } | |
353 | regs_addr = of_get_address(rx_node, 0, &__if->regs_size, NULL); | |
354 | if (!regs_addr) { | |
355 | FMAN_ERR(-EINVAL, "of_get_address(%s)\n", mname); | |
356 | goto err; | |
357 | } | |
358 | phys_addr = of_translate_address(rx_node, regs_addr); | |
359 | if (!phys_addr) { | |
360 | FMAN_ERR(-EINVAL, "of_translate_address(%s, %p)\n", | |
361 | mname, regs_addr); | |
362 | goto err; | |
363 | } | |
364 | __if->bmi_map = mmap(NULL, __if->regs_size, | |
365 | PROT_READ | PROT_WRITE, MAP_SHARED, | |
366 | fman_ccsr_map_fd, phys_addr); | |
367 | if (__if->bmi_map == MAP_FAILED) { | |
368 | FMAN_ERR(-errno, "mmap(0x%"PRIx64")\n", phys_addr); | |
369 | goto err; | |
370 | } | |
371 | ||
372 | /* No channel ID for MAC-less */ | |
373 | assert(lenp == sizeof(*tx_channel_id)); | |
374 | na = of_n_addr_cells(mac_node); | |
375 | __if->__if.tx_channel_id = of_read_number(tx_channel_id, na); | |
376 | ||
377 | /* Extract the Rx FQIDs. (Note, the device representation is silly, | |
378 | * there are "counts" that must always be 1.) | |
379 | */ | |
380 | rx_phandle = of_get_property(dpa_node, rprop, &lenp); | |
381 | if (!rx_phandle) { | |
382 | FMAN_ERR(-EINVAL, "%s: no fsl,qman-frame-queues-rx\n", dname); | |
383 | goto err; | |
384 | } | |
385 | ||
386 | assert(lenp == (4 * sizeof(phandle))); | |
387 | ||
388 | na = of_n_addr_cells(mac_node); | |
389 | /* Get rid of endianness (issues). Convert to host byte order */ | |
390 | rx_phandle_host[0] = of_read_number(&rx_phandle[0], na); | |
391 | rx_phandle_host[1] = of_read_number(&rx_phandle[1], na); | |
392 | rx_phandle_host[2] = of_read_number(&rx_phandle[2], na); | |
393 | rx_phandle_host[3] = of_read_number(&rx_phandle[3], na); | |
394 | ||
395 | assert((rx_phandle_host[1] == 1) && (rx_phandle_host[3] == 1)); | |
396 | __if->__if.fqid_rx_err = rx_phandle_host[0]; | |
397 | __if->__if.fqid_rx_def = rx_phandle_host[2]; | |
398 | ||
399 | /* Extract the Tx FQIDs */ | |
400 | tx_phandle = of_get_property(dpa_node, | |
401 | "fsl,qman-frame-queues-tx", &lenp); | |
402 | if (!tx_phandle) { | |
403 | FMAN_ERR(-EINVAL, "%s: no fsl,qman-frame-queues-tx\n", dname); | |
404 | goto err; | |
405 | } | |
406 | ||
407 | assert(lenp == (4 * sizeof(phandle))); | |
408 | /*TODO: Fix for other cases also */ | |
409 | na = of_n_addr_cells(mac_node); | |
410 | /* Get rid of endianness (issues). Convert to host byte order */ | |
411 | tx_phandle_host[0] = of_read_number(&tx_phandle[0], na); | |
412 | tx_phandle_host[1] = of_read_number(&tx_phandle[1], na); | |
413 | tx_phandle_host[2] = of_read_number(&tx_phandle[2], na); | |
414 | tx_phandle_host[3] = of_read_number(&tx_phandle[3], na); | |
415 | assert((tx_phandle_host[1] == 1) && (tx_phandle_host[3] == 1)); | |
416 | __if->__if.fqid_tx_err = tx_phandle_host[0]; | |
417 | __if->__if.fqid_tx_confirm = tx_phandle_host[2]; | |
418 | ||
419 | /* Obtain the buffer pool nodes used by this interface */ | |
420 | pools_phandle = of_get_property(dpa_node, "fsl,bman-buffer-pools", | |
421 | &lenp); | |
422 | if (!pools_phandle) { | |
423 | FMAN_ERR(-EINVAL, "%s: no fsl,bman-buffer-pools\n", dname); | |
424 | goto err; | |
425 | } | |
426 | /* For each pool, parse the corresponding node and add a pool object | |
427 | * to the interface's "bpool_list" | |
428 | */ | |
429 | assert(lenp && !(lenp % sizeof(phandle))); | |
430 | while (lenp) { | |
431 | size_t proplen; | |
432 | const phandle *prop; | |
433 | uint64_t bpid_host = 0; | |
434 | uint64_t bpool_host[6] = {0}; | |
435 | const char *pname; | |
436 | /* Allocate an object for the pool */ | |
9f95a23c | 437 | bpool = rte_malloc(NULL, sizeof(*bpool), RTE_CACHE_LINE_SIZE); |
11fdf7f2 TL |
438 | if (!bpool) { |
439 | FMAN_ERR(-ENOMEM, "malloc(%zu)\n", sizeof(*bpool)); | |
440 | goto err; | |
441 | } | |
442 | /* Find the pool node */ | |
443 | pool_node = of_find_node_by_phandle(*pools_phandle); | |
444 | if (!pool_node) { | |
445 | FMAN_ERR(-ENXIO, "%s: bad fsl,bman-buffer-pools\n", | |
446 | dname); | |
9f95a23c | 447 | rte_free(bpool); |
11fdf7f2 TL |
448 | goto err; |
449 | } | |
450 | pname = pool_node->full_name; | |
451 | /* Extract the BPID property */ | |
452 | prop = of_get_property(pool_node, "fsl,bpid", &proplen); | |
453 | if (!prop) { | |
454 | FMAN_ERR(-EINVAL, "%s: no fsl,bpid\n", pname); | |
9f95a23c | 455 | rte_free(bpool); |
11fdf7f2 TL |
456 | goto err; |
457 | } | |
458 | assert(proplen == sizeof(*prop)); | |
459 | na = of_n_addr_cells(mac_node); | |
460 | /* Get rid of endianness (issues). | |
461 | * Convert to host byte-order | |
462 | */ | |
463 | bpid_host = of_read_number(prop, na); | |
464 | bpool->bpid = bpid_host; | |
465 | /* Extract the cfg property (count/size/addr). "fsl,bpool-cfg" | |
466 | * indicates for the Bman driver to seed the pool. | |
467 | * "fsl,bpool-ethernet-cfg" is used by the network driver. The | |
468 | * two are mutually exclusive, so check for either of them. | |
469 | */ | |
470 | prop = of_get_property(pool_node, "fsl,bpool-cfg", | |
471 | &proplen); | |
472 | if (!prop) | |
473 | prop = of_get_property(pool_node, | |
474 | "fsl,bpool-ethernet-cfg", | |
475 | &proplen); | |
476 | if (!prop) { | |
477 | /* It's OK for there to be no bpool-cfg */ | |
478 | bpool->count = bpool->size = bpool->addr = 0; | |
479 | } else { | |
480 | assert(proplen == (6 * sizeof(*prop))); | |
481 | na = of_n_addr_cells(mac_node); | |
482 | /* Get rid of endianness (issues). | |
483 | * Convert to host byte order | |
484 | */ | |
485 | bpool_host[0] = of_read_number(&prop[0], na); | |
486 | bpool_host[1] = of_read_number(&prop[1], na); | |
487 | bpool_host[2] = of_read_number(&prop[2], na); | |
488 | bpool_host[3] = of_read_number(&prop[3], na); | |
489 | bpool_host[4] = of_read_number(&prop[4], na); | |
490 | bpool_host[5] = of_read_number(&prop[5], na); | |
491 | ||
492 | bpool->count = ((uint64_t)bpool_host[0] << 32) | | |
493 | bpool_host[1]; | |
494 | bpool->size = ((uint64_t)bpool_host[2] << 32) | | |
495 | bpool_host[3]; | |
496 | bpool->addr = ((uint64_t)bpool_host[4] << 32) | | |
497 | bpool_host[5]; | |
498 | } | |
499 | /* Parsing of the pool is complete, add it to the interface | |
500 | * list. | |
501 | */ | |
502 | list_add_tail(&bpool->node, &__if->__if.bpool_list); | |
503 | lenp -= sizeof(phandle); | |
504 | pools_phandle++; | |
505 | } | |
506 | ||
507 | /* Parsing of the network interface is complete, add it to the list */ | |
508 | DPAA_BUS_LOG(DEBUG, "Found %s, Tx Channel = %x, FMAN = %x," | |
509 | "Port ID = %x", | |
510 | dname, __if->__if.tx_channel_id, __if->__if.fman_idx, | |
511 | __if->__if.mac_idx); | |
512 | ||
513 | list_add_tail(&__if->__if.node, &__ifs); | |
514 | return 0; | |
515 | err: | |
516 | if_destructor(__if); | |
517 | return _errno; | |
518 | } | |
519 | ||
520 | int | |
521 | fman_init(void) | |
522 | { | |
523 | const struct device_node *dpa_node; | |
524 | int _errno; | |
525 | ||
526 | /* If multiple dependencies try to initialise the Fman driver, don't | |
527 | * panic. | |
528 | */ | |
529 | if (fman_ccsr_map_fd != -1) | |
530 | return 0; | |
531 | ||
532 | fman_ccsr_map_fd = open(FMAN_DEVICE_PATH, O_RDWR); | |
533 | if (unlikely(fman_ccsr_map_fd < 0)) { | |
534 | DPAA_BUS_LOG(ERR, "Unable to open (/dev/mem)"); | |
535 | return fman_ccsr_map_fd; | |
536 | } | |
537 | ||
538 | for_each_compatible_node(dpa_node, NULL, "fsl,dpa-ethernet-init") { | |
539 | _errno = fman_if_init(dpa_node); | |
540 | if (_errno) { | |
541 | FMAN_ERR(_errno, "if_init(%s)\n", dpa_node->full_name); | |
542 | goto err; | |
543 | } | |
544 | } | |
545 | ||
546 | return 0; | |
547 | err: | |
548 | fman_finish(); | |
549 | return _errno; | |
550 | } | |
551 | ||
552 | void | |
553 | fman_finish(void) | |
554 | { | |
555 | struct __fman_if *__if, *tmpif; | |
556 | ||
557 | assert(fman_ccsr_map_fd != -1); | |
558 | ||
559 | list_for_each_entry_safe(__if, tmpif, &__ifs, __if.node) { | |
560 | int _errno; | |
561 | ||
562 | /* disable Rx and Tx */ | |
563 | if ((__if->__if.mac_type == fman_mac_1g) && | |
564 | (!__if->__if.is_memac)) | |
565 | out_be32(__if->ccsr_map + 0x100, | |
566 | in_be32(__if->ccsr_map + 0x100) & ~(u32)0x5); | |
567 | else | |
568 | out_be32(__if->ccsr_map + 8, | |
569 | in_be32(__if->ccsr_map + 8) & ~(u32)3); | |
570 | /* release the mapping */ | |
571 | _errno = munmap(__if->ccsr_map, __if->regs_size); | |
572 | if (unlikely(_errno < 0)) | |
573 | fprintf(stderr, "%s:%d:%s(): munmap() = %d (%s)\n", | |
574 | __FILE__, __LINE__, __func__, | |
575 | -errno, strerror(errno)); | |
576 | printf("Tearing down %s\n", __if->node_path); | |
577 | list_del(&__if->__if.node); | |
9f95a23c | 578 | rte_free(__if); |
11fdf7f2 TL |
579 | } |
580 | ||
581 | close(fman_ccsr_map_fd); | |
582 | fman_ccsr_map_fd = -1; | |
583 | } |