1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2019 Intel Corporation
5 #include <rte_cycles.h>
6 #include <rte_bus_pci.h>
7 #include <rte_string_fns.h>
8 #include <rte_rawdev_pmd.h>
10 #include "rte_ioat_rawdev.h"
12 /* Dynamic log type identifier */
15 static struct rte_pci_driver ioat_pmd_drv;
17 #define IOAT_VENDOR_ID 0x8086
18 #define IOAT_DEVICE_ID_SKX 0x2021
19 #define IOAT_DEVICE_ID_BDX0 0x6f20
20 #define IOAT_DEVICE_ID_BDX1 0x6f21
21 #define IOAT_DEVICE_ID_BDX2 0x6f22
22 #define IOAT_DEVICE_ID_BDX3 0x6f23
23 #define IOAT_DEVICE_ID_BDX4 0x6f24
24 #define IOAT_DEVICE_ID_BDX5 0x6f25
25 #define IOAT_DEVICE_ID_BDX6 0x6f26
26 #define IOAT_DEVICE_ID_BDX7 0x6f27
27 #define IOAT_DEVICE_ID_BDXE 0x6f2E
28 #define IOAT_DEVICE_ID_BDXF 0x6f2F
29 #define IOAT_DEVICE_ID_ICX 0x0b00
31 #define IOAT_PMD_LOG(level, fmt, args...) rte_log(RTE_LOG_ ## level, \
32 ioat_pmd_logtype, "%s(): " fmt "\n", __func__, ##args)
34 #define IOAT_PMD_DEBUG(fmt, args...) IOAT_PMD_LOG(DEBUG, fmt, ## args)
35 #define IOAT_PMD_INFO(fmt, args...) IOAT_PMD_LOG(INFO, fmt, ## args)
36 #define IOAT_PMD_ERR(fmt, args...) IOAT_PMD_LOG(ERR, fmt, ## args)
37 #define IOAT_PMD_WARN(fmt, args...) IOAT_PMD_LOG(WARNING, fmt, ## args)
39 #define DESC_SZ sizeof(struct rte_ioat_generic_hw_desc)
40 #define COMPLETION_SZ sizeof(__m128i)
43 ioat_dev_configure(const struct rte_rawdev *dev, rte_rawdev_obj_t config)
45 struct rte_ioat_rawdev_config *params = config;
46 struct rte_ioat_rawdev *ioat = dev->dev_private;
47 char mz_name[RTE_MEMZONE_NAMESIZE];
56 if (params->ring_size > 4096 || params->ring_size < 64 ||
57 !rte_is_power_of_2(params->ring_size))
60 ioat->ring_size = params->ring_size;
61 if (ioat->desc_ring != NULL) {
62 rte_memzone_free(ioat->desc_mz);
63 ioat->desc_ring = NULL;
67 /* allocate one block of memory for both descriptors
68 * and completion handles.
70 snprintf(mz_name, sizeof(mz_name), "rawdev%u_desc_ring", dev->dev_id);
71 ioat->desc_mz = rte_memzone_reserve(mz_name,
72 (DESC_SZ + COMPLETION_SZ) * ioat->ring_size,
73 dev->device->numa_node, RTE_MEMZONE_IOVA_CONTIG);
74 if (ioat->desc_mz == NULL)
76 ioat->desc_ring = ioat->desc_mz->addr;
77 ioat->hdls = (void *)&ioat->desc_ring[ioat->ring_size];
79 ioat->ring_addr = ioat->desc_mz->iova;
81 /* configure descriptor ring - each one points to next */
82 for (i = 0; i < ioat->ring_size; i++) {
83 ioat->desc_ring[i].next = ioat->ring_addr +
84 (((i + 1) % ioat->ring_size) * DESC_SZ);
91 ioat_dev_start(struct rte_rawdev *dev)
93 struct rte_ioat_rawdev *ioat = dev->dev_private;
95 if (ioat->ring_size == 0 || ioat->desc_ring == NULL)
98 /* inform hardware of where the descriptor ring is */
99 ioat->regs->chainaddr = ioat->ring_addr;
100 /* inform hardware of where to write the status/completions */
101 ioat->regs->chancmp = ioat->status_addr;
103 /* prime the status register to be set to the last element */
104 ioat->status = ioat->ring_addr + ((ioat->ring_size - 1) * DESC_SZ);
109 ioat_dev_stop(struct rte_rawdev *dev)
115 ioat_dev_info_get(struct rte_rawdev *dev, rte_rawdev_obj_t dev_info)
117 struct rte_ioat_rawdev_config *cfg = dev_info;
118 struct rte_ioat_rawdev *ioat = dev->dev_private;
121 cfg->ring_size = ioat->ring_size;
124 static const char * const xstat_names[] = {
125 "failed_enqueues", "successful_enqueues",
126 "copies_started", "copies_completed"
130 ioat_xstats_get(const struct rte_rawdev *dev, const unsigned int ids[],
131 uint64_t values[], unsigned int n)
133 const struct rte_ioat_rawdev *ioat = dev->dev_private;
136 for (i = 0; i < n; i++) {
138 case 0: values[i] = ioat->enqueue_failed; break;
139 case 1: values[i] = ioat->enqueued; break;
140 case 2: values[i] = ioat->started; break;
141 case 3: values[i] = ioat->completed; break;
142 default: values[i] = 0; break;
149 ioat_xstats_get_names(const struct rte_rawdev *dev,
150 struct rte_rawdev_xstats_name *names,
156 if (size < RTE_DIM(xstat_names))
157 return RTE_DIM(xstat_names);
159 for (i = 0; i < RTE_DIM(xstat_names); i++)
160 strlcpy(names[i].name, xstat_names[i], sizeof(names[i]));
162 return RTE_DIM(xstat_names);
166 ioat_xstats_reset(struct rte_rawdev *dev, const uint32_t *ids, uint32_t nb_ids)
168 struct rte_ioat_rawdev *ioat = dev->dev_private;
172 ioat->enqueue_failed = 0;
179 for (i = 0; i < nb_ids; i++) {
182 ioat->enqueue_failed = 0;
194 IOAT_PMD_WARN("Invalid xstat id - cannot reset value");
202 extern int ioat_rawdev_test(uint16_t dev_id);
205 ioat_rawdev_create(const char *name, struct rte_pci_device *dev)
207 static const struct rte_rawdev_ops ioat_rawdev_ops = {
208 .dev_configure = ioat_dev_configure,
209 .dev_start = ioat_dev_start,
210 .dev_stop = ioat_dev_stop,
211 .dev_info_get = ioat_dev_info_get,
212 .xstats_get = ioat_xstats_get,
213 .xstats_get_names = ioat_xstats_get_names,
214 .xstats_reset = ioat_xstats_reset,
215 .dev_selftest = ioat_rawdev_test,
218 struct rte_rawdev *rawdev = NULL;
219 struct rte_ioat_rawdev *ioat = NULL;
220 const struct rte_memzone *mz = NULL;
221 char mz_name[RTE_MEMZONE_NAMESIZE];
226 IOAT_PMD_ERR("Invalid name of the device!");
231 /* Allocate device structure */
232 rawdev = rte_rawdev_pmd_allocate(name, sizeof(struct rte_ioat_rawdev),
233 dev->device.numa_node);
234 if (rawdev == NULL) {
235 IOAT_PMD_ERR("Unable to allocate raw device");
240 snprintf(mz_name, sizeof(mz_name), "rawdev%u_private", rawdev->dev_id);
241 mz = rte_memzone_reserve(mz_name, sizeof(struct rte_ioat_rawdev),
242 dev->device.numa_node, RTE_MEMZONE_IOVA_CONTIG);
244 IOAT_PMD_ERR("Unable to reserve memzone for private data\n");
249 rawdev->dev_private = mz->addr;
250 rawdev->dev_ops = &ioat_rawdev_ops;
251 rawdev->device = &dev->device;
252 rawdev->driver_name = dev->device.driver->name;
254 ioat = rawdev->dev_private;
255 ioat->rawdev = rawdev;
257 ioat->regs = dev->mem_resource[0].addr;
259 ioat->desc_ring = NULL;
260 ioat->status_addr = ioat->mz->iova +
261 offsetof(struct rte_ioat_rawdev, status);
263 /* do device initialization - reset and set error behaviour */
264 if (ioat->regs->chancnt != 1)
265 IOAT_PMD_ERR("%s: Channel count == %d\n", __func__,
266 ioat->regs->chancnt);
268 if (ioat->regs->chanctrl & 0x100) { /* locked by someone else */
269 IOAT_PMD_WARN("%s: Channel appears locked\n", __func__);
270 ioat->regs->chanctrl = 0;
273 ioat->regs->chancmd = RTE_IOAT_CHANCMD_SUSPEND;
275 ioat->regs->chancmd = RTE_IOAT_CHANCMD_RESET;
277 while (ioat->regs->chancmd & RTE_IOAT_CHANCMD_RESET) {
278 ioat->regs->chainaddr = 0;
280 if (++retry >= 200) {
281 IOAT_PMD_ERR("%s: cannot reset device. CHANCMD=0x%"PRIx8", CHANSTS=0x%"PRIx64", CHANERR=0x%"PRIx32"\n",
285 ioat->regs->chanerr);
289 ioat->regs->chanctrl = RTE_IOAT_CHANCTRL_ANY_ERR_ABORT_EN |
290 RTE_IOAT_CHANCTRL_ERR_COMPLETION_EN;
296 rte_rawdev_pmd_release(rawdev);
302 ioat_rawdev_destroy(const char *name)
305 struct rte_rawdev *rdev;
308 IOAT_PMD_ERR("Invalid device name");
312 rdev = rte_rawdev_pmd_get_named_dev(name);
314 IOAT_PMD_ERR("Invalid device name (%s)", name);
318 if (rdev->dev_private != NULL) {
319 struct rte_ioat_rawdev *ioat = rdev->dev_private;
320 rdev->dev_private = NULL;
321 rte_memzone_free(ioat->desc_mz);
322 rte_memzone_free(ioat->mz);
325 /* rte_rawdev_close is called by pmd_release */
326 ret = rte_rawdev_pmd_release(rdev);
328 IOAT_PMD_DEBUG("Device cleanup failed");
334 ioat_rawdev_probe(struct rte_pci_driver *drv, struct rte_pci_device *dev)
340 rte_pci_device_name(&dev->addr, name, sizeof(name));
341 IOAT_PMD_INFO("Init %s on NUMA node %d", name, dev->device.numa_node);
343 dev->device.driver = &drv->driver;
344 ret = ioat_rawdev_create(name, dev);
349 ioat_rawdev_remove(struct rte_pci_device *dev)
354 rte_pci_device_name(&dev->addr, name, sizeof(name));
356 IOAT_PMD_INFO("Closing %s on NUMA node %d",
357 name, dev->device.numa_node);
359 ret = ioat_rawdev_destroy(name);
363 static const struct rte_pci_id pci_id_ioat_map[] = {
364 { RTE_PCI_DEVICE(IOAT_VENDOR_ID, IOAT_DEVICE_ID_SKX) },
365 { RTE_PCI_DEVICE(IOAT_VENDOR_ID, IOAT_DEVICE_ID_BDX0) },
366 { RTE_PCI_DEVICE(IOAT_VENDOR_ID, IOAT_DEVICE_ID_BDX1) },
367 { RTE_PCI_DEVICE(IOAT_VENDOR_ID, IOAT_DEVICE_ID_BDX2) },
368 { RTE_PCI_DEVICE(IOAT_VENDOR_ID, IOAT_DEVICE_ID_BDX3) },
369 { RTE_PCI_DEVICE(IOAT_VENDOR_ID, IOAT_DEVICE_ID_BDX4) },
370 { RTE_PCI_DEVICE(IOAT_VENDOR_ID, IOAT_DEVICE_ID_BDX5) },
371 { RTE_PCI_DEVICE(IOAT_VENDOR_ID, IOAT_DEVICE_ID_BDX6) },
372 { RTE_PCI_DEVICE(IOAT_VENDOR_ID, IOAT_DEVICE_ID_BDX7) },
373 { RTE_PCI_DEVICE(IOAT_VENDOR_ID, IOAT_DEVICE_ID_BDXE) },
374 { RTE_PCI_DEVICE(IOAT_VENDOR_ID, IOAT_DEVICE_ID_BDXF) },
375 { RTE_PCI_DEVICE(IOAT_VENDOR_ID, IOAT_DEVICE_ID_ICX) },
376 { .vendor_id = 0, /* sentinel */ },
379 static struct rte_pci_driver ioat_pmd_drv = {
380 .id_table = pci_id_ioat_map,
381 .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
382 .probe = ioat_rawdev_probe,
383 .remove = ioat_rawdev_remove,
386 RTE_PMD_REGISTER_PCI(IOAT_PMD_RAWDEV_NAME, ioat_pmd_drv);
387 RTE_PMD_REGISTER_PCI_TABLE(IOAT_PMD_RAWDEV_NAME, pci_id_ioat_map);
388 RTE_PMD_REGISTER_KMOD_DEP(IOAT_PMD_RAWDEV_NAME, "* igb_uio | uio_pci_generic");
390 RTE_INIT(ioat_pmd_init_log)
392 ioat_pmd_logtype = rte_log_register(IOAT_PMD_LOG_NAME);
393 if (ioat_pmd_logtype >= 0)
394 rte_log_set_level(ioat_pmd_logtype, RTE_LOG_INFO);