1 /* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0)
3 * Copyright 2010-2016 Freescale Semiconductor Inc.
4 * Copyright 2017-2020 NXP
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_name, dpa_node->name, IF_NAME_MAX_LEN - 1);
189 __if->node_name[IF_NAME_MAX_LEN - 1] = '\0';
190 strlcpy(__if->node_path, dpa_node->full_name, PATH_MAX - 1);
191 __if->node_path[PATH_MAX - 1] = '\0';
193 /* Obtain the MAC node used by this interface except macless */
194 mac_phandle = of_get_property(dpa_node, mprop, &lenp);
196 FMAN_ERR(-EINVAL, "%s: no %s\n", dname, mprop);
199 assert(lenp == sizeof(phandle));
200 mac_node = of_find_node_by_phandle(*mac_phandle);
202 FMAN_ERR(-ENXIO, "%s: bad 'fsl,fman-mac\n", dname);
205 mname = mac_node->full_name;
207 /* Map the CCSR regs for the MAC node */
208 regs_addr = of_get_address(mac_node, 0, &__if->regs_size, NULL);
210 FMAN_ERR(-EINVAL, "of_get_address(%s)\n", mname);
213 phys_addr = of_translate_address(mac_node, regs_addr);
215 FMAN_ERR(-EINVAL, "of_translate_address(%s, %p)\n",
219 __if->ccsr_map = mmap(NULL, __if->regs_size,
220 PROT_READ | PROT_WRITE, MAP_SHARED,
221 fman_ccsr_map_fd, phys_addr);
222 if (__if->ccsr_map == MAP_FAILED) {
223 FMAN_ERR(-errno, "mmap(0x%"PRIx64")\n", phys_addr);
226 na = of_n_addr_cells(mac_node);
227 /* Get rid of endianness (issues). Convert to host byte order */
228 regs_addr_host = of_read_number(regs_addr, na);
231 /* Get the index of the Fman this i/f belongs to */
232 fman_node = of_get_parent(mac_node);
233 na = of_n_addr_cells(mac_node);
235 FMAN_ERR(-ENXIO, "of_get_parent(%s)\n", mname);
238 fname = fman_node->full_name;
239 cell_idx = of_get_property(fman_node, "cell-index", &lenp);
241 FMAN_ERR(-ENXIO, "%s: no cell-index)\n", fname);
244 assert(lenp == sizeof(*cell_idx));
245 cell_idx_host = of_read_number(cell_idx, lenp / sizeof(phandle));
246 __if->__if.fman_idx = cell_idx_host;
248 _errno = fman_get_ip_rev(fman_node);
250 FMAN_ERR(-ENXIO, "%s: ip_rev is not available\n",
256 if (fman_ip_rev >= FMAN_V3) {
258 * Set A2V, OVOM, EBD bits in contextA to allow external
259 * buffer deallocation by fman.
261 fman_dealloc_bufs_mask_hi = FMAN_V3_CONTEXTA_EN_A2V |
262 FMAN_V3_CONTEXTA_EN_OVOM;
263 fman_dealloc_bufs_mask_lo = FMAN_V3_CONTEXTA_EN_EBD;
265 fman_dealloc_bufs_mask_hi = 0;
266 fman_dealloc_bufs_mask_lo = 0;
268 /* Is the MAC node 1G, 2.5G, 10G? */
269 __if->__if.is_memac = 0;
271 if (of_device_is_compatible(mac_node, "fsl,fman-1g-mac"))
272 __if->__if.mac_type = fman_mac_1g;
273 else if (of_device_is_compatible(mac_node, "fsl,fman-10g-mac"))
274 __if->__if.mac_type = fman_mac_10g;
275 else if (of_device_is_compatible(mac_node, "fsl,fman-memac")) {
276 __if->__if.is_memac = 1;
277 char_prop = of_get_property(mac_node, "phy-connection-type",
280 printf("memac: unknown MII type assuming 1G\n");
281 /* Right now forcing memac to 1g in case of error*/
282 __if->__if.mac_type = fman_mac_1g;
284 if (strstr(char_prop, "sgmii-2500"))
285 __if->__if.mac_type = fman_mac_2_5g;
286 else if (strstr(char_prop, "sgmii"))
287 __if->__if.mac_type = fman_mac_1g;
288 else if (strstr(char_prop, "rgmii")) {
289 __if->__if.mac_type = fman_mac_1g;
290 __if->__if.is_rgmii = 1;
291 } else if (strstr(char_prop, "xgmii"))
292 __if->__if.mac_type = fman_mac_10g;
295 FMAN_ERR(-EINVAL, "%s: unknown MAC type\n", mname);
300 * For MAC ports, we cannot rely on cell-index. In
301 * T2080, two of the 10G ports on single FMAN have same
302 * duplicate cell-indexes as the other two 10G ports on
303 * same FMAN. Hence, we now rely upon addresses of the
304 * ports from device tree to deduce the index.
307 _errno = fman_get_mac_index(regs_addr_host, &__if->__if.mac_idx);
309 FMAN_ERR(-EINVAL, "Invalid register address: %" PRIx64,
314 /* Extract the MAC address for private and shared interfaces */
315 mac_addr = of_get_property(mac_node, "local-mac-address",
318 FMAN_ERR(-EINVAL, "%s: no local-mac-address\n",
322 memcpy(&__if->__if.mac_addr, mac_addr, ETHER_ADDR_LEN);
324 /* Extract the Tx port (it's the second of the two port handles)
325 * and get its channel ID
327 ports_phandle = of_get_property(mac_node, "fsl,port-handles",
330 ports_phandle = of_get_property(mac_node, "fsl,fman-ports",
332 if (!ports_phandle) {
333 FMAN_ERR(-EINVAL, "%s: no fsl,port-handles\n",
337 assert(lenp == (2 * sizeof(phandle)));
338 tx_node = of_find_node_by_phandle(ports_phandle[1]);
340 FMAN_ERR(-ENXIO, "%s: bad fsl,port-handle[1]\n", mname);
343 /* Extract the channel ID (from tx-port-handle) */
344 tx_channel_id = of_get_property(tx_node, "fsl,qman-channel-id",
346 if (!tx_channel_id) {
347 FMAN_ERR(-EINVAL, "%s: no fsl-qman-channel-id\n",
352 rx_node = of_find_node_by_phandle(ports_phandle[0]);
354 FMAN_ERR(-ENXIO, "%s: bad fsl,port-handle[0]\n", mname);
357 regs_addr = of_get_address(rx_node, 0, &__if->regs_size, NULL);
359 FMAN_ERR(-EINVAL, "of_get_address(%s)\n", mname);
362 phys_addr = of_translate_address(rx_node, regs_addr);
364 FMAN_ERR(-EINVAL, "of_translate_address(%s, %p)\n",
368 __if->bmi_map = mmap(NULL, __if->regs_size,
369 PROT_READ | PROT_WRITE, MAP_SHARED,
370 fman_ccsr_map_fd, phys_addr);
371 if (__if->bmi_map == MAP_FAILED) {
372 FMAN_ERR(-errno, "mmap(0x%"PRIx64")\n", phys_addr);
376 /* No channel ID for MAC-less */
377 assert(lenp == sizeof(*tx_channel_id));
378 na = of_n_addr_cells(mac_node);
379 __if->__if.tx_channel_id = of_read_number(tx_channel_id, na);
381 /* Extract the Rx FQIDs. (Note, the device representation is silly,
382 * there are "counts" that must always be 1.)
384 rx_phandle = of_get_property(dpa_node, rprop, &lenp);
386 FMAN_ERR(-EINVAL, "%s: no fsl,qman-frame-queues-rx\n", dname);
390 assert(lenp == (4 * sizeof(phandle)));
392 na = of_n_addr_cells(mac_node);
393 /* Get rid of endianness (issues). Convert to host byte order */
394 rx_phandle_host[0] = of_read_number(&rx_phandle[0], na);
395 rx_phandle_host[1] = of_read_number(&rx_phandle[1], na);
396 rx_phandle_host[2] = of_read_number(&rx_phandle[2], na);
397 rx_phandle_host[3] = of_read_number(&rx_phandle[3], na);
399 assert((rx_phandle_host[1] == 1) && (rx_phandle_host[3] == 1));
400 __if->__if.fqid_rx_err = rx_phandle_host[0];
401 __if->__if.fqid_rx_def = rx_phandle_host[2];
403 /* Extract the Tx FQIDs */
404 tx_phandle = of_get_property(dpa_node,
405 "fsl,qman-frame-queues-tx", &lenp);
407 FMAN_ERR(-EINVAL, "%s: no fsl,qman-frame-queues-tx\n", dname);
411 assert(lenp == (4 * sizeof(phandle)));
412 /*TODO: Fix for other cases also */
413 na = of_n_addr_cells(mac_node);
414 /* Get rid of endianness (issues). Convert to host byte order */
415 tx_phandle_host[0] = of_read_number(&tx_phandle[0], na);
416 tx_phandle_host[1] = of_read_number(&tx_phandle[1], na);
417 tx_phandle_host[2] = of_read_number(&tx_phandle[2], na);
418 tx_phandle_host[3] = of_read_number(&tx_phandle[3], na);
419 assert((tx_phandle_host[1] == 1) && (tx_phandle_host[3] == 1));
420 __if->__if.fqid_tx_err = tx_phandle_host[0];
421 __if->__if.fqid_tx_confirm = tx_phandle_host[2];
423 /* Obtain the buffer pool nodes used by this interface */
424 pools_phandle = of_get_property(dpa_node, "fsl,bman-buffer-pools",
426 if (!pools_phandle) {
427 FMAN_ERR(-EINVAL, "%s: no fsl,bman-buffer-pools\n", dname);
430 /* For each pool, parse the corresponding node and add a pool object
431 * to the interface's "bpool_list"
433 assert(lenp && !(lenp % sizeof(phandle)));
437 uint64_t bpid_host = 0;
438 uint64_t bpool_host[6] = {0};
440 /* Allocate an object for the pool */
441 bpool = rte_malloc(NULL, sizeof(*bpool), RTE_CACHE_LINE_SIZE);
443 FMAN_ERR(-ENOMEM, "malloc(%zu)\n", sizeof(*bpool));
446 /* Find the pool node */
447 pool_node = of_find_node_by_phandle(*pools_phandle);
449 FMAN_ERR(-ENXIO, "%s: bad fsl,bman-buffer-pools\n",
454 pname = pool_node->full_name;
455 /* Extract the BPID property */
456 prop = of_get_property(pool_node, "fsl,bpid", &proplen);
458 FMAN_ERR(-EINVAL, "%s: no fsl,bpid\n", pname);
462 assert(proplen == sizeof(*prop));
463 na = of_n_addr_cells(mac_node);
464 /* Get rid of endianness (issues).
465 * Convert to host byte-order
467 bpid_host = of_read_number(prop, na);
468 bpool->bpid = bpid_host;
469 /* Extract the cfg property (count/size/addr). "fsl,bpool-cfg"
470 * indicates for the Bman driver to seed the pool.
471 * "fsl,bpool-ethernet-cfg" is used by the network driver. The
472 * two are mutually exclusive, so check for either of them.
474 prop = of_get_property(pool_node, "fsl,bpool-cfg",
477 prop = of_get_property(pool_node,
478 "fsl,bpool-ethernet-cfg",
481 /* It's OK for there to be no bpool-cfg */
482 bpool->count = bpool->size = bpool->addr = 0;
484 assert(proplen == (6 * sizeof(*prop)));
485 na = of_n_addr_cells(mac_node);
486 /* Get rid of endianness (issues).
487 * Convert to host byte order
489 bpool_host[0] = of_read_number(&prop[0], na);
490 bpool_host[1] = of_read_number(&prop[1], na);
491 bpool_host[2] = of_read_number(&prop[2], na);
492 bpool_host[3] = of_read_number(&prop[3], na);
493 bpool_host[4] = of_read_number(&prop[4], na);
494 bpool_host[5] = of_read_number(&prop[5], na);
496 bpool->count = ((uint64_t)bpool_host[0] << 32) |
498 bpool->size = ((uint64_t)bpool_host[2] << 32) |
500 bpool->addr = ((uint64_t)bpool_host[4] << 32) |
503 /* Parsing of the pool is complete, add it to the interface
506 list_add_tail(&bpool->node, &__if->__if.bpool_list);
507 lenp -= sizeof(phandle);
511 /* Parsing of the network interface is complete, add it to the list */
512 DPAA_BUS_LOG(DEBUG, "Found %s, Tx Channel = %x, FMAN = %x,"
514 dname, __if->__if.tx_channel_id, __if->__if.fman_idx,
517 list_add_tail(&__if->__if.node, &__ifs);
527 const struct device_node *dpa_node;
530 /* If multiple dependencies try to initialise the Fman driver, don't
533 if (fman_ccsr_map_fd != -1)
536 fman_ccsr_map_fd = open(FMAN_DEVICE_PATH, O_RDWR);
537 if (unlikely(fman_ccsr_map_fd < 0)) {
538 DPAA_BUS_LOG(ERR, "Unable to open (/dev/mem)");
539 return fman_ccsr_map_fd;
542 for_each_compatible_node(dpa_node, NULL, "fsl,dpa-ethernet-init") {
543 _errno = fman_if_init(dpa_node);
545 FMAN_ERR(_errno, "if_init(%s)\n", dpa_node->full_name);
559 struct __fman_if *__if, *tmpif;
561 assert(fman_ccsr_map_fd != -1);
563 list_for_each_entry_safe(__if, tmpif, &__ifs, __if.node) {
566 /* disable Rx and Tx */
567 if ((__if->__if.mac_type == fman_mac_1g) &&
568 (!__if->__if.is_memac))
569 out_be32(__if->ccsr_map + 0x100,
570 in_be32(__if->ccsr_map + 0x100) & ~(u32)0x5);
572 out_be32(__if->ccsr_map + 8,
573 in_be32(__if->ccsr_map + 8) & ~(u32)3);
574 /* release the mapping */
575 _errno = munmap(__if->ccsr_map, __if->regs_size);
576 if (unlikely(_errno < 0))
577 fprintf(stderr, "%s:%d:%s(): munmap() = %d (%s)\n",
578 __FILE__, __LINE__, __func__,
579 -errno, strerror(errno));
580 printf("Tearing down %s\n", __if->node_path);
581 list_del(&__if->__if.node);
585 close(fman_ccsr_map_fd);
586 fman_ccsr_map_fd = -1;