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_rawdev_pmd.h>
9 #include "rte_ioat_rawdev.h"
11 /* Dynamic log type identifier */
14 static struct rte_pci_driver ioat_pmd_drv;
16 #define IOAT_VENDOR_ID 0x8086
17 #define IOAT_DEVICE_ID_SKX 0x2021
18 #define IOAT_DEVICE_ID_BDX0 0x6f20
19 #define IOAT_DEVICE_ID_BDX1 0x6f21
20 #define IOAT_DEVICE_ID_BDX2 0x6f22
21 #define IOAT_DEVICE_ID_BDX3 0x6f23
22 #define IOAT_DEVICE_ID_BDX4 0x6f24
23 #define IOAT_DEVICE_ID_BDX5 0x6f25
24 #define IOAT_DEVICE_ID_BDX6 0x6f26
25 #define IOAT_DEVICE_ID_BDX7 0x6f27
26 #define IOAT_DEVICE_ID_BDXE 0x6f2E
27 #define IOAT_DEVICE_ID_BDXF 0x6f2F
29 #define IOAT_PMD_LOG(level, fmt, args...) rte_log(RTE_LOG_ ## level, \
30 ioat_pmd_logtype, "%s(): " fmt "\n", __func__, ##args)
32 #define IOAT_PMD_DEBUG(fmt, args...) IOAT_PMD_LOG(DEBUG, fmt, ## args)
33 #define IOAT_PMD_INFO(fmt, args...) IOAT_PMD_LOG(INFO, fmt, ## args)
34 #define IOAT_PMD_ERR(fmt, args...) IOAT_PMD_LOG(ERR, fmt, ## args)
35 #define IOAT_PMD_WARN(fmt, args...) IOAT_PMD_LOG(WARNING, fmt, ## args)
38 ioat_rawdev_create(const char *name, struct rte_pci_device *dev)
40 static const struct rte_rawdev_ops ioat_rawdev_ops = {
43 struct rte_rawdev *rawdev = NULL;
44 struct rte_ioat_rawdev *ioat = NULL;
45 const struct rte_memzone *mz = NULL;
46 char mz_name[RTE_MEMZONE_NAMESIZE];
51 IOAT_PMD_ERR("Invalid name of the device!");
56 /* Allocate device structure */
57 rawdev = rte_rawdev_pmd_allocate(name, sizeof(struct rte_ioat_rawdev),
58 dev->device.numa_node);
60 IOAT_PMD_ERR("Unable to allocate raw device");
65 snprintf(mz_name, sizeof(mz_name), "rawdev%u_private", rawdev->dev_id);
66 mz = rte_memzone_reserve(mz_name, sizeof(struct rte_ioat_rawdev),
67 dev->device.numa_node, RTE_MEMZONE_IOVA_CONTIG);
69 IOAT_PMD_ERR("Unable to reserve memzone for private data\n");
74 rawdev->dev_private = mz->addr;
75 rawdev->dev_ops = &ioat_rawdev_ops;
76 rawdev->device = &dev->device;
77 rawdev->driver_name = dev->device.driver->name;
79 ioat = rawdev->dev_private;
80 ioat->rawdev = rawdev;
82 ioat->regs = dev->mem_resource[0].addr;
84 ioat->desc_ring = NULL;
85 ioat->status_addr = ioat->mz->iova +
86 offsetof(struct rte_ioat_rawdev, status);
88 /* do device initialization - reset and set error behaviour */
89 if (ioat->regs->chancnt != 1)
90 IOAT_PMD_ERR("%s: Channel count == %d\n", __func__,
93 if (ioat->regs->chanctrl & 0x100) { /* locked by someone else */
94 IOAT_PMD_WARN("%s: Channel appears locked\n", __func__);
95 ioat->regs->chanctrl = 0;
98 ioat->regs->chancmd = RTE_IOAT_CHANCMD_SUSPEND;
100 ioat->regs->chancmd = RTE_IOAT_CHANCMD_RESET;
102 while (ioat->regs->chancmd & RTE_IOAT_CHANCMD_RESET) {
103 ioat->regs->chainaddr = 0;
105 if (++retry >= 200) {
106 IOAT_PMD_ERR("%s: cannot reset device. CHANCMD=0x%"PRIx8", CHANSTS=0x%"PRIx64", CHANERR=0x%"PRIx32"\n",
110 ioat->regs->chanerr);
114 ioat->regs->chanctrl = RTE_IOAT_CHANCTRL_ANY_ERR_ABORT_EN |
115 RTE_IOAT_CHANCTRL_ERR_COMPLETION_EN;
121 rte_rawdev_pmd_release(rawdev);
127 ioat_rawdev_destroy(const char *name)
130 struct rte_rawdev *rdev;
133 IOAT_PMD_ERR("Invalid device name");
137 rdev = rte_rawdev_pmd_get_named_dev(name);
139 IOAT_PMD_ERR("Invalid device name (%s)", name);
143 if (rdev->dev_private != NULL) {
144 struct rte_ioat_rawdev *ioat = rdev->dev_private;
145 rdev->dev_private = NULL;
146 rte_memzone_free(ioat->mz);
149 /* rte_rawdev_close is called by pmd_release */
150 ret = rte_rawdev_pmd_release(rdev);
152 IOAT_PMD_DEBUG("Device cleanup failed");
158 ioat_rawdev_probe(struct rte_pci_driver *drv, struct rte_pci_device *dev)
164 rte_pci_device_name(&dev->addr, name, sizeof(name));
165 IOAT_PMD_INFO("Init %s on NUMA node %d", name, dev->device.numa_node);
167 dev->device.driver = &drv->driver;
168 ret = ioat_rawdev_create(name, dev);
173 ioat_rawdev_remove(struct rte_pci_device *dev)
178 rte_pci_device_name(&dev->addr, name, sizeof(name));
180 IOAT_PMD_INFO("Closing %s on NUMA node %d",
181 name, dev->device.numa_node);
183 ret = ioat_rawdev_destroy(name);
187 static const struct rte_pci_id pci_id_ioat_map[] = {
188 { RTE_PCI_DEVICE(IOAT_VENDOR_ID, IOAT_DEVICE_ID_SKX) },
189 { RTE_PCI_DEVICE(IOAT_VENDOR_ID, IOAT_DEVICE_ID_BDX0) },
190 { RTE_PCI_DEVICE(IOAT_VENDOR_ID, IOAT_DEVICE_ID_BDX1) },
191 { RTE_PCI_DEVICE(IOAT_VENDOR_ID, IOAT_DEVICE_ID_BDX2) },
192 { RTE_PCI_DEVICE(IOAT_VENDOR_ID, IOAT_DEVICE_ID_BDX3) },
193 { RTE_PCI_DEVICE(IOAT_VENDOR_ID, IOAT_DEVICE_ID_BDX4) },
194 { RTE_PCI_DEVICE(IOAT_VENDOR_ID, IOAT_DEVICE_ID_BDX5) },
195 { RTE_PCI_DEVICE(IOAT_VENDOR_ID, IOAT_DEVICE_ID_BDX6) },
196 { RTE_PCI_DEVICE(IOAT_VENDOR_ID, IOAT_DEVICE_ID_BDX7) },
197 { RTE_PCI_DEVICE(IOAT_VENDOR_ID, IOAT_DEVICE_ID_BDXE) },
198 { RTE_PCI_DEVICE(IOAT_VENDOR_ID, IOAT_DEVICE_ID_BDXF) },
199 { .vendor_id = 0, /* sentinel */ },
202 static struct rte_pci_driver ioat_pmd_drv = {
203 .id_table = pci_id_ioat_map,
204 .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC |
205 RTE_PCI_DRV_IOVA_AS_VA,
206 .probe = ioat_rawdev_probe,
207 .remove = ioat_rawdev_remove,
210 RTE_PMD_REGISTER_PCI(IOAT_PMD_RAWDEV_NAME, ioat_pmd_drv);
211 RTE_PMD_REGISTER_PCI_TABLE(IOAT_PMD_RAWDEV_NAME, pci_id_ioat_map);
212 RTE_PMD_REGISTER_KMOD_DEP(IOAT_PMD_RAWDEV_NAME, "* igb_uio | uio_pci_generic");
214 RTE_INIT(ioat_pmd_init_log)
216 ioat_pmd_logtype = rte_log_register(IOAT_PMD_LOG_NAME);
217 if (ioat_pmd_logtype >= 0)
218 rte_log_set_level(ioat_pmd_logtype, RTE_LOG_INFO);