1 /* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0)
3 * Copyright 2010-2016 Freescale Semiconductor Inc.
12 /* This header declares the driver interface we implement */
15 #include <rte_malloc.h>
16 #include <rte_dpaa_logs.h>
17 #include <rte_string_fns.h>
19 #define QMI_PORT_REGS_OFFSET 0x400
21 /* CCSR map address to access ccsr based register */
23 /* fman version info */
26 u32 fman_dealloc_bufs_mask_hi;
27 u32 fman_dealloc_bufs_mask_lo;
29 int fman_ccsr_map_fd = -1;
30 static COMPAT_LIST_HEAD(__ifs);
32 /* This is the (const) global variable that callers have read-only access to.
33 * Internally, we have read-write access directly to __ifs.
35 const struct list_head *fman_if_list = &__ifs;
38 if_destructor(struct __fman_if *__if)
40 struct fman_if_bpool *bp, *tmpbp;
45 if (__if->__if.mac_type == fman_offline)
48 list_for_each_entry_safe(bp, tmpbp, &__if->__if.bpool_list, node) {
57 fman_get_ip_rev(const struct device_node *fman_node)
59 const uint32_t *fman_addr;
65 fman_addr = of_get_address(fman_node, 0, ®s_size, NULL);
67 pr_err("of_get_address cannot return fman address\n");
70 phys_addr = of_translate_address(fman_node, fman_addr);
72 pr_err("of_translate_address failed\n");
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");
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;
86 _errno = munmap(fman_ccsr_map, regs_size);
88 pr_err("munmap() of FMan ccsr failed");
94 fman_get_mac_index(uint64_t regs_addr_host, uint8_t *mac_idx)
110 switch (regs_addr_host) {
149 fman_if_init(const struct device_node *dpa_node)
151 const char *rprop, *mprop;
153 struct __fman_if *__if;
154 struct fman_if_bpool *bpool;
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;
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;
171 const char *char_prop;
174 if (of_device_is_available(dpa_node) == false)
177 rprop = "fsl,qman-frame-queues-rx";
178 mprop = "fsl,fman-mac";
180 /* Allocate an object for this network interface */
181 __if = rte_malloc(NULL, sizeof(*__if), RTE_CACHE_LINE_SIZE);
183 FMAN_ERR(-ENOMEM, "malloc(%zu)\n", sizeof(*__if));
186 memset(__if, 0, sizeof(*__if));
187 INIT_LIST_HEAD(&__if->__if.bpool_list);
188 strlcpy(__if->node_path, dpa_node->full_name, PATH_MAX - 1);
189 __if->node_path[PATH_MAX - 1] = '\0';
191 /* Obtain the MAC node used by this interface except macless */
192 mac_phandle = of_get_property(dpa_node, mprop, &lenp);
194 FMAN_ERR(-EINVAL, "%s: no %s\n", dname, mprop);
197 assert(lenp == sizeof(phandle));
198 mac_node = of_find_node_by_phandle(*mac_phandle);
200 FMAN_ERR(-ENXIO, "%s: bad 'fsl,fman-mac\n", dname);
203 mname = mac_node->full_name;
205 /* Map the CCSR regs for the MAC node */
206 regs_addr = of_get_address(mac_node, 0, &__if->regs_size, NULL);
208 FMAN_ERR(-EINVAL, "of_get_address(%s)\n", mname);
211 phys_addr = of_translate_address(mac_node, regs_addr);
213 FMAN_ERR(-EINVAL, "of_translate_address(%s, %p)\n",
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);
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);
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);
233 FMAN_ERR(-ENXIO, "of_get_parent(%s)\n", mname);
236 fname = fman_node->full_name;
237 cell_idx = of_get_property(fman_node, "cell-index", &lenp);
239 FMAN_ERR(-ENXIO, "%s: no cell-index)\n", fname);
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;
246 _errno = fman_get_ip_rev(fman_node);
248 FMAN_ERR(-ENXIO, "%s: ip_rev is not available\n",
254 if (fman_ip_rev >= FMAN_V3) {
256 * Set A2V, OVOM, EBD bits in contextA to allow external
257 * buffer deallocation by fman.
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;
263 fman_dealloc_bufs_mask_hi = 0;
264 fman_dealloc_bufs_mask_lo = 0;
266 /* Is the MAC node 1G, 10G? */
267 __if->__if.is_memac = 0;
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",
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;
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;
291 FMAN_ERR(-EINVAL, "%s: unknown MAC type\n", mname);
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.
303 _errno = fman_get_mac_index(regs_addr_host, &__if->__if.mac_idx);
305 FMAN_ERR(-EINVAL, "Invalid register address: %" PRIx64,
310 /* Extract the MAC address for private and shared interfaces */
311 mac_addr = of_get_property(mac_node, "local-mac-address",
314 FMAN_ERR(-EINVAL, "%s: no local-mac-address\n",
318 memcpy(&__if->__if.mac_addr, mac_addr, ETHER_ADDR_LEN);
320 /* Extract the Tx port (it's the second of the two port handles)
321 * and get its channel ID
323 ports_phandle = of_get_property(mac_node, "fsl,port-handles",
326 ports_phandle = of_get_property(mac_node, "fsl,fman-ports",
328 if (!ports_phandle) {
329 FMAN_ERR(-EINVAL, "%s: no fsl,port-handles\n",
333 assert(lenp == (2 * sizeof(phandle)));
334 tx_node = of_find_node_by_phandle(ports_phandle[1]);
336 FMAN_ERR(-ENXIO, "%s: bad fsl,port-handle[1]\n", mname);
339 /* Extract the channel ID (from tx-port-handle) */
340 tx_channel_id = of_get_property(tx_node, "fsl,qman-channel-id",
342 if (!tx_channel_id) {
343 FMAN_ERR(-EINVAL, "%s: no fsl-qman-channel-id\n",
348 rx_node = of_find_node_by_phandle(ports_phandle[0]);
350 FMAN_ERR(-ENXIO, "%s: bad fsl,port-handle[0]\n", mname);
353 regs_addr = of_get_address(rx_node, 0, &__if->regs_size, NULL);
355 FMAN_ERR(-EINVAL, "of_get_address(%s)\n", mname);
358 phys_addr = of_translate_address(rx_node, regs_addr);
360 FMAN_ERR(-EINVAL, "of_translate_address(%s, %p)\n",
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);
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);
377 /* Extract the Rx FQIDs. (Note, the device representation is silly,
378 * there are "counts" that must always be 1.)
380 rx_phandle = of_get_property(dpa_node, rprop, &lenp);
382 FMAN_ERR(-EINVAL, "%s: no fsl,qman-frame-queues-rx\n", dname);
386 assert(lenp == (4 * sizeof(phandle)));
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);
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];
399 /* Extract the Tx FQIDs */
400 tx_phandle = of_get_property(dpa_node,
401 "fsl,qman-frame-queues-tx", &lenp);
403 FMAN_ERR(-EINVAL, "%s: no fsl,qman-frame-queues-tx\n", dname);
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];
419 /* Obtain the buffer pool nodes used by this interface */
420 pools_phandle = of_get_property(dpa_node, "fsl,bman-buffer-pools",
422 if (!pools_phandle) {
423 FMAN_ERR(-EINVAL, "%s: no fsl,bman-buffer-pools\n", dname);
426 /* For each pool, parse the corresponding node and add a pool object
427 * to the interface's "bpool_list"
429 assert(lenp && !(lenp % sizeof(phandle)));
433 uint64_t bpid_host = 0;
434 uint64_t bpool_host[6] = {0};
436 /* Allocate an object for the pool */
437 bpool = rte_malloc(NULL, sizeof(*bpool), RTE_CACHE_LINE_SIZE);
439 FMAN_ERR(-ENOMEM, "malloc(%zu)\n", sizeof(*bpool));
442 /* Find the pool node */
443 pool_node = of_find_node_by_phandle(*pools_phandle);
445 FMAN_ERR(-ENXIO, "%s: bad fsl,bman-buffer-pools\n",
450 pname = pool_node->full_name;
451 /* Extract the BPID property */
452 prop = of_get_property(pool_node, "fsl,bpid", &proplen);
454 FMAN_ERR(-EINVAL, "%s: no fsl,bpid\n", pname);
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
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.
470 prop = of_get_property(pool_node, "fsl,bpool-cfg",
473 prop = of_get_property(pool_node,
474 "fsl,bpool-ethernet-cfg",
477 /* It's OK for there to be no bpool-cfg */
478 bpool->count = bpool->size = bpool->addr = 0;
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
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);
492 bpool->count = ((uint64_t)bpool_host[0] << 32) |
494 bpool->size = ((uint64_t)bpool_host[2] << 32) |
496 bpool->addr = ((uint64_t)bpool_host[4] << 32) |
499 /* Parsing of the pool is complete, add it to the interface
502 list_add_tail(&bpool->node, &__if->__if.bpool_list);
503 lenp -= sizeof(phandle);
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,"
510 dname, __if->__if.tx_channel_id, __if->__if.fman_idx,
513 list_add_tail(&__if->__if.node, &__ifs);
523 const struct device_node *dpa_node;
526 /* If multiple dependencies try to initialise the Fman driver, don't
529 if (fman_ccsr_map_fd != -1)
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;
538 for_each_compatible_node(dpa_node, NULL, "fsl,dpa-ethernet-init") {
539 _errno = fman_if_init(dpa_node);
541 FMAN_ERR(_errno, "if_init(%s)\n", dpa_node->full_name);
555 struct __fman_if *__if, *tmpif;
557 assert(fman_ccsr_map_fd != -1);
559 list_for_each_entry_safe(__if, tmpif, &__ifs, __if.node) {
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);
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);
581 close(fman_ccsr_map_fd);
582 fman_ccsr_map_fd = -1;