2 * Copyright (c) 2018, 2019 Mellanox Technologies, Ltd. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 #include <sys/cdefs.h>
27 __FBSDID("$FreeBSD$");
29 #include <sys/param.h>
30 #include <sys/systm.h>
32 #include <sys/fcntl.h>
33 #include <dev/mlx5/driver.h>
34 #include <dev/mlx5/device.h>
35 #include <dev/mlx5/port.h>
36 #include <dev/mlx5/mlx5_core/mlx5_core.h>
37 #include <dev/mlx5/mlx5io.h>
38 #include <dev/mlx5/diagnostics.h>
40 static MALLOC_DEFINE(M_MLX5_DUMP, "MLX5DUMP", "MLX5 Firmware dump");
43 mlx5_fwdump_getsize(const struct mlx5_crspace_regmap *rege)
45 const struct mlx5_crspace_regmap *r;
48 for (sz = 0, r = rege; r->cnt != 0; r++)
54 mlx5_fwdump_destroy_dd(struct mlx5_core_dev *mdev)
57 mtx_assert(&mdev->dump_lock, MA_OWNED);
58 free(mdev->dump_data, M_MLX5_DUMP);
59 mdev->dump_data = NULL;
63 mlx5_fwdump_prep(struct mlx5_core_dev *mdev)
68 u32 addr, in, out, next_addr;
70 mdev->dump_data = NULL;
71 error = mlx5_vsc_find_cap(mdev);
73 /* Inability to create a firmware dump is not fatal. */
75 "Failed to find vendor-specific capability, error %d\n",
79 error = mlx5_vsc_lock(mdev);
82 error = mlx5_vsc_set_space(mdev, MLX5_VSC_DOMAIN_SCAN_CRSPACE);
84 mlx5_core_warn(mdev, "VSC scan space is not supported\n");
87 dev = mdev->pdev->dev.bsddev;
88 vsc_addr = mdev->vsc_addr;
90 mlx5_core_warn(mdev, "Cannot read VSC, no address\n");
95 for (sz = 1, addr = 0;;) {
96 MLX5_VSC_SET(vsc_addr, &in, address, addr);
97 pci_write_config(dev, vsc_addr + MLX5_VSC_ADDR_OFFSET, in, 4);
98 error = mlx5_vsc_wait_on_flag(mdev, 1);
101 "Failed waiting for read complete flag, error %d addr %#x\n",
105 pci_read_config(dev, vsc_addr + MLX5_VSC_DATA_OFFSET, 4);
106 out = pci_read_config(dev, vsc_addr + MLX5_VSC_ADDR_OFFSET, 4);
107 next_addr = MLX5_VSC_GET(vsc_addr, &out, address);
108 if (next_addr == 0 || next_addr == addr)
110 if (next_addr != addr + 4)
114 mdev->dump_rege = malloc(sz * sizeof(struct mlx5_crspace_regmap),
115 M_MLX5_DUMP, M_WAITOK | M_ZERO);
117 for (i = 0, addr = 0;;) {
119 mdev->dump_rege[i].cnt++;
120 MLX5_VSC_SET(vsc_addr, &in, address, addr);
121 pci_write_config(dev, vsc_addr + MLX5_VSC_ADDR_OFFSET, in, 4);
122 error = mlx5_vsc_wait_on_flag(mdev, 1);
125 "Failed waiting for read complete flag, error %d addr %#x\n",
127 free(mdev->dump_rege, M_MLX5_DUMP);
128 mdev->dump_rege = NULL;
131 pci_read_config(dev, vsc_addr + MLX5_VSC_DATA_OFFSET, 4);
132 out = pci_read_config(dev, vsc_addr + MLX5_VSC_ADDR_OFFSET, 4);
133 next_addr = MLX5_VSC_GET(vsc_addr, &out, address);
134 if (next_addr == 0 || next_addr == addr)
136 if (next_addr != addr + 4)
137 mdev->dump_rege[++i].addr = next_addr;
141 ("inconsistent hw crspace reads: sz %u i %u addr %#lx",
142 sz, i, (unsigned long)addr));
144 mdev->dump_size = mlx5_fwdump_getsize(mdev->dump_rege);
145 mdev->dump_data = malloc(mdev->dump_size * sizeof(uint32_t),
146 M_MLX5_DUMP, M_WAITOK | M_ZERO);
147 mdev->dump_valid = false;
148 mdev->dump_copyout = false;
151 mlx5_vsc_unlock(mdev);
155 mlx5_fwdump(struct mlx5_core_dev *mdev)
157 const struct mlx5_crspace_regmap *r;
161 mlx5_core_info(mdev, "Issuing FW dump\n");
162 mtx_lock(&mdev->dump_lock);
163 if (mdev->dump_data == NULL) {
167 if (mdev->dump_valid) {
170 "Only one FW dump can be captured aborting FW dump\n");
175 /* mlx5_vsc already warns, be silent. */
176 error = mlx5_vsc_lock(mdev);
179 error = mlx5_vsc_set_space(mdev, MLX5_VSC_DOMAIN_PROTECTED_CRSPACE);
182 for (i = 0, r = mdev->dump_rege; r->cnt != 0; r++) {
183 for (ri = 0; ri < r->cnt; ri++) {
184 error = mlx5_vsc_read(mdev, r->addr + ri * 4,
185 &mdev->dump_data[i]);
191 mdev->dump_valid = true;
193 mlx5_vsc_unlock(mdev);
195 mtx_unlock(&mdev->dump_lock);
200 mlx5_fwdump_clean(struct mlx5_core_dev *mdev)
203 mtx_lock(&mdev->dump_lock);
204 while (mdev->dump_copyout)
205 msleep(&mdev->dump_copyout, &mdev->dump_lock, 0, "mlx5fwc", 0);
206 mlx5_fwdump_destroy_dd(mdev);
207 mtx_unlock(&mdev->dump_lock);
208 free(mdev->dump_rege, M_MLX5_DUMP);
212 mlx5_fwdump_reset(struct mlx5_core_dev *mdev)
217 mtx_lock(&mdev->dump_lock);
218 if (mdev->dump_data != NULL) {
219 while (mdev->dump_copyout) {
220 msleep(&mdev->dump_copyout, &mdev->dump_lock,
223 mdev->dump_valid = false;
227 mtx_unlock(&mdev->dump_lock);
232 mlx5_dbsf_to_core(const struct mlx5_tool_addr *devaddr,
233 struct mlx5_core_dev **mdev)
236 struct pci_dev *pdev;
238 dev = pci_find_dbsf(devaddr->domain, devaddr->bus, devaddr->slot,
242 if (device_get_devclass(dev) != mlx5_core_driver.bsdclass)
244 pdev = device_get_softc(dev);
245 *mdev = pci_get_drvdata(pdev);
252 mlx5_fwdump_copyout(struct mlx5_core_dev *mdev, struct mlx5_fwdump_get *fwg)
254 const struct mlx5_crspace_regmap *r;
255 struct mlx5_fwdump_reg rv, *urv;
259 mtx_lock(&mdev->dump_lock);
260 if (mdev->dump_data == NULL) {
261 mtx_unlock(&mdev->dump_lock);
264 if (fwg->buf == NULL) {
265 fwg->reg_filled = mdev->dump_size;
266 mtx_unlock(&mdev->dump_lock);
269 if (!mdev->dump_valid) {
270 mtx_unlock(&mdev->dump_lock);
273 mdev->dump_copyout = true;
274 mtx_unlock(&mdev->dump_lock);
277 for (i = 0, r = mdev->dump_rege; r->cnt != 0; r++) {
278 for (ri = 0; ri < r->cnt; ri++) {
279 if (i >= fwg->reg_cnt)
281 rv.addr = r->addr + ri * 4;
282 rv.val = mdev->dump_data[i];
283 error = copyout(&rv, urv, sizeof(rv));
292 mtx_lock(&mdev->dump_lock);
293 mdev->dump_copyout = false;
294 wakeup(&mdev->dump_copyout);
295 mtx_unlock(&mdev->dump_lock);
300 mlx5_fw_reset(struct mlx5_core_dev *mdev)
305 error = -mlx5_set_mfrl_reg(mdev, MLX5_FRL_LEVEL3);
307 dev = mdev->pdev->dev.bsddev;
309 bus = device_get_parent(dev);
310 error = BUS_RESET_CHILD(device_get_parent(bus), bus,
318 mlx5_eeprom_copyout(struct mlx5_core_dev *dev, struct mlx5_eeprom_get *eeprom_info)
320 struct mlx5_eeprom eeprom;
323 eeprom.i2c_addr = MLX5_I2C_ADDR_LOW;
324 eeprom.device_addr = 0;
325 eeprom.page_num = MLX5_EEPROM_LOW_PAGE;
326 eeprom.page_valid = 0;
328 /* Read three first bytes to get important info */
329 error = mlx5_get_eeprom_info(dev, &eeprom);
332 "Failed reading EEPROM initial information\n");
335 eeprom_info->eeprom_info_page_valid = eeprom.page_valid;
336 eeprom_info->eeprom_info_out_len = eeprom.len;
338 if (eeprom_info->eeprom_info_buf == NULL)
341 * Allocate needed length buffer and additional space for
344 eeprom.data = malloc(eeprom.len + MLX5_EEPROM_PAGE_LENGTH,
345 M_MLX5_EEPROM, M_WAITOK | M_ZERO);
347 /* Read the whole eeprom information */
348 error = mlx5_get_eeprom(dev, &eeprom);
350 mlx5_core_err(dev, "Failed reading EEPROM error = %d\n",
354 * Continue printing partial information in case of
358 error = copyout(eeprom.data, eeprom_info->eeprom_info_buf,
360 free(eeprom.data, M_MLX5_EEPROM);
366 mlx5_ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag,
369 struct mlx5_core_dev *mdev;
370 struct mlx5_fwdump_get *fwg;
371 struct mlx5_tool_addr *devaddr;
372 struct mlx5_fw_update *fu;
373 struct firmware fake_fw;
374 struct mlx5_eeprom_get *eeprom_info;
379 case MLX5_FWDUMP_GET:
380 if ((fflag & FREAD) == 0) {
384 fwg = (struct mlx5_fwdump_get *)data;
385 devaddr = &fwg->devaddr;
386 error = mlx5_dbsf_to_core(devaddr, &mdev);
389 error = mlx5_fwdump_copyout(mdev, fwg);
391 case MLX5_FWDUMP_RESET:
392 if ((fflag & FWRITE) == 0) {
396 devaddr = (struct mlx5_tool_addr *)data;
397 error = mlx5_dbsf_to_core(devaddr, &mdev);
399 error = mlx5_fwdump_reset(mdev);
401 case MLX5_FWDUMP_FORCE:
402 if ((fflag & FWRITE) == 0) {
406 devaddr = (struct mlx5_tool_addr *)data;
407 error = mlx5_dbsf_to_core(devaddr, &mdev);
410 error = mlx5_fwdump(mdev);
413 if ((fflag & FWRITE) == 0) {
417 fu = (struct mlx5_fw_update *)data;
418 if (fu->img_fw_data_len > 10 * 1024 * 1024) {
422 devaddr = &fu->devaddr;
423 error = mlx5_dbsf_to_core(devaddr, &mdev);
426 bzero(&fake_fw, sizeof(fake_fw));
427 fake_fw.name = "umlx_fw_up";
428 fake_fw.datasize = fu->img_fw_data_len;
430 fake_fw.data = (void *)kmem_malloc(fu->img_fw_data_len,
432 if (fake_fw.data == NULL) {
436 error = copyin(fu->img_fw_data, __DECONST(void *, fake_fw.data),
437 fu->img_fw_data_len);
439 error = -mlx5_firmware_flash(mdev, &fake_fw);
440 kmem_free((vm_offset_t)fake_fw.data, fu->img_fw_data_len);
443 if ((fflag & FWRITE) == 0) {
447 devaddr = (struct mlx5_tool_addr *)data;
448 error = mlx5_dbsf_to_core(devaddr, &mdev);
451 error = mlx5_fw_reset(mdev);
453 case MLX5_EEPROM_GET:
454 if ((fflag & FREAD) == 0) {
458 eeprom_info = (struct mlx5_eeprom_get *)data;
459 devaddr = &eeprom_info->devaddr;
460 error = mlx5_dbsf_to_core(devaddr, &mdev);
463 error = mlx5_eeprom_copyout(mdev, eeprom_info);
472 static struct cdevsw mlx5_ctl_devsw = {
473 .d_version = D_VERSION,
474 .d_ioctl = mlx5_ctl_ioctl,
477 static struct cdev *mlx5_ctl_dev;
482 struct make_dev_args mda;
485 make_dev_args_init(&mda);
486 mda.mda_flags = MAKEDEV_WAITOK | MAKEDEV_CHECKNAME;
487 mda.mda_devsw = &mlx5_ctl_devsw;
488 mda.mda_uid = UID_ROOT;
489 mda.mda_gid = GID_OPERATOR;
491 error = make_dev_s(&mda, &mlx5_ctl_dev, "mlx5ctl");
499 if (mlx5_ctl_dev != NULL)
500 destroy_dev(mlx5_ctl_dev);