1/* SPDX-License-Identifier: BSD-3-Clause */
2/* Copyright(c) 2007-2022 Intel Corporation */
3#include "qat_freebsd.h"
4#include <adf_accel_devices.h>
5#include <adf_common_drv.h>
6#include <adf_cfg.h>
7#include "adf_4xxxvf_hw_data.h"
8#include "adf_gen4_hw_data.h"
9#include "adf_fw_counters.h"
10#include "adf_cfg_device.h"
11#include <sys/types.h>
12#include <sys/kernel.h>
13#include <sys/malloc.h>
14#include <machine/bus_dma.h>
15#include <dev/pci/pcireg.h>
16
17static MALLOC_DEFINE(M_QAT_4XXXVF, "qat_4xxxvf", "qat_4xxxvf");
18
19#define ADF_SYSTEM_DEVICE(device_id)                                           \
20	{                                                                      \
21		PCI_VENDOR_ID_INTEL, device_id                                 \
22	}
23
24static const struct pci_device_id adf_pci_tbl[] =
25    { ADF_SYSTEM_DEVICE(ADF_4XXXIOV_PCI_DEVICE_ID),
26      ADF_SYSTEM_DEVICE(ADF_401XXIOV_PCI_DEVICE_ID),
27      {
28	  0,
29      } };
30
31static int
32adf_probe(device_t dev)
33{
34	const struct pci_device_id *id;
35
36	for (id = adf_pci_tbl; id->vendor != 0; id++) {
37		if (pci_get_vendor(dev) == id->vendor &&
38		    pci_get_device(dev) == id->device) {
39			device_set_desc(dev,
40					"Intel " ADF_4XXXVF_DEVICE_NAME
41					" QuickAssist");
42			return BUS_PROBE_GENERIC;
43		}
44	}
45	return ENXIO;
46}
47
48static void
49adf_cleanup_accel(struct adf_accel_dev *accel_dev)
50{
51	struct adf_accel_pci *accel_pci_dev = &accel_dev->accel_pci_dev;
52	struct adf_accel_dev *pf;
53	int i;
54
55	if (accel_dev->dma_tag)
56		bus_dma_tag_destroy(accel_dev->dma_tag);
57
58	for (i = 0; i < ADF_PCI_MAX_BARS; i++) {
59		struct adf_bar *bar = &accel_pci_dev->pci_bars[i];
60
61		if (bar->virt_addr)
62			bus_free_resource(accel_pci_dev->pci_dev,
63					  SYS_RES_MEMORY,
64					  bar->virt_addr);
65	}
66
67	/*
68	 * As adf_clean_hw_data_4xxxiov() will update class index, before
69	 * index is updated, vf must be remove from accel_table.
70	 */
71	pf = adf_devmgr_pci_to_accel_dev(pci_find_pf(accel_pci_dev->pci_dev));
72	adf_devmgr_rm_dev(accel_dev, pf);
73
74	if (accel_dev->hw_device) {
75		switch (pci_get_device(accel_pci_dev->pci_dev)) {
76		case ADF_4XXXIOV_PCI_DEVICE_ID:
77		case ADF_401XXIOV_PCI_DEVICE_ID:
78			adf_clean_hw_data_4xxxiov(accel_dev->hw_device);
79			break;
80		default:
81			break;
82		}
83		free(accel_dev->hw_device, M_QAT_4XXXVF);
84		accel_dev->hw_device = NULL;
85	}
86	adf_cfg_dev_remove(accel_dev);
87}
88
89static int
90adf_attach(device_t dev)
91{
92	struct adf_accel_dev *accel_dev;
93	struct adf_accel_dev *pf;
94	struct adf_accel_pci *accel_pci_dev;
95	struct adf_hw_device_data *hw_data;
96	unsigned int bar_nr;
97	int ret = 0;
98	int rid;
99	struct adf_cfg_device *cfg_dev = NULL;
100
101	accel_dev = device_get_softc(dev);
102	accel_dev->is_vf = true;
103	pf = adf_devmgr_pci_to_accel_dev(pci_find_pf(dev));
104
105	INIT_LIST_HEAD(&accel_dev->crypto_list);
106	accel_pci_dev = &accel_dev->accel_pci_dev;
107	accel_pci_dev->pci_dev = dev;
108
109	if (bus_get_domain(dev, &accel_pci_dev->node) != 0)
110		accel_pci_dev->node = 0;
111
112	/* Add accel device to accel table */
113	if (adf_devmgr_add_dev(accel_dev, pf)) {
114		device_printf(GET_DEV(accel_dev),
115			      "Failed to add new accelerator device.\n");
116		return -EFAULT;
117	}
118	/* Allocate and configure device configuration structure */
119	hw_data = malloc(sizeof(*hw_data), M_QAT_4XXXVF, M_WAITOK | M_ZERO);
120	if (!hw_data) {
121		ret = -ENOMEM;
122		goto out_err;
123	}
124
125	accel_dev->hw_device = hw_data;
126	adf_init_hw_data_4xxxiov(accel_dev->hw_device);
127	accel_pci_dev->revid = pci_get_revid(dev);
128
129	hw_data->fuses = pci_read_config(dev, ADF_4XXXIOV_VFFUSECTL4_OFFSET, 4);
130
131	/* Get Accelerators and Accelerators Engines masks */
132	hw_data->accel_mask = hw_data->get_accel_mask(accel_dev);
133	hw_data->ae_mask = hw_data->get_ae_mask(accel_dev);
134	hw_data->admin_ae_mask = hw_data->ae_mask;
135	accel_pci_dev->sku = hw_data->get_sku(hw_data);
136
137	/* Create device configuration table */
138	ret = adf_cfg_dev_add(accel_dev);
139	if (ret)
140		goto out_err;
141
142	pci_set_max_read_req(dev, 1024);
143
144	ret = bus_dma_tag_create(bus_get_dma_tag(dev),
145				 1,
146				 0,
147				 BUS_SPACE_MAXADDR,
148				 BUS_SPACE_MAXADDR,
149				 NULL,
150				 NULL,
151				 BUS_SPACE_MAXSIZE,
152				 /* BUS_SPACE_UNRESTRICTED */ 1,
153				 BUS_SPACE_MAXSIZE,
154				 0,
155				 NULL,
156				 NULL,
157				 &accel_dev->dma_tag);
158
159	hw_data->accel_capabilities_mask = adf_4xxxvf_get_hw_cap(accel_dev);
160
161	/* Find and map all the device's BARS */
162	/* Logical BARs configuration for 64bit BARs:
163	     bar 0 and 1 - logical BAR0
164	     bar 2 and 3 - logical BAR1
165	     bar 4 and 5 - logical BAR3
166	*/
167	for (bar_nr = 0;
168	     bar_nr < (ADF_PCI_MAX_BARS * 2) && bar_nr < PCIR_MAX_BAR_0;
169	     bar_nr += 2) {
170		struct adf_bar *bar;
171
172		rid = PCIR_BAR(bar_nr);
173		bar = &accel_pci_dev->pci_bars[bar_nr / 2];
174		bar->virt_addr = bus_alloc_resource_any(dev,
175							SYS_RES_MEMORY,
176							&rid,
177							RF_ACTIVE);
178		if (!bar->virt_addr) {
179			device_printf(dev, "Failed to map BAR %d\n", bar_nr);
180			ret = ENXIO;
181			goto out_err;
182		}
183		bar->base_addr = rman_get_start(bar->virt_addr);
184		bar->size = rman_get_size(bar->virt_addr);
185	}
186	pci_enable_busmaster(dev);
187
188	/* Completion for VF2PF request/response message exchange */
189	init_completion(&accel_dev->u1.vf.msg_received);
190	mutex_init(&accel_dev->u1.vf.rpreset_lock);
191
192	ret = hw_data->config_device(accel_dev);
193	if (ret)
194		goto out_err;
195
196	ret = adf_dev_init(accel_dev);
197	if (!ret)
198		ret = adf_dev_start(accel_dev);
199
200	if (ret) {
201		device_printf(
202		    GET_DEV(accel_dev),
203		    "Failed to start - make sure PF enabled services match VF configuration.\n");
204		adf_dev_stop(accel_dev);
205		adf_dev_shutdown(accel_dev);
206		return 0;
207	}
208
209	cfg_dev = accel_dev->cfg->dev;
210	adf_cfg_device_clear(cfg_dev, accel_dev);
211	free(cfg_dev, M_QAT);
212	accel_dev->cfg->dev = NULL;
213
214	return ret;
215
216out_err:
217	adf_cleanup_accel(accel_dev);
218	return ret;
219}
220
221static int
222adf_detach(device_t dev)
223{
224	struct adf_accel_dev *accel_dev = device_get_softc(dev);
225
226	if (!accel_dev) {
227		printf("QAT: Driver removal failed\n");
228		return EFAULT;
229	}
230
231	adf_flush_vf_wq(accel_dev);
232	clear_bit(ADF_STATUS_RESTARTING, &accel_dev->status);
233	adf_dev_stop(accel_dev);
234	adf_dev_shutdown(accel_dev);
235	adf_cleanup_accel(accel_dev);
236	return 0;
237}
238
239static int
240adf_modevent(module_t mod, int type, void *data)
241{
242
243	switch (type) {
244	case MOD_UNLOAD:
245		adf_clean_vf_map(true);
246		return 0;
247	default:
248		return EOPNOTSUPP;
249	}
250}
251
252static device_method_t adf_methods[] = { DEVMETHOD(device_probe, adf_probe),
253					 DEVMETHOD(device_attach, adf_attach),
254					 DEVMETHOD(device_detach, adf_detach),
255
256					 DEVMETHOD_END };
257
258static driver_t adf_driver = { "qat",
259			       adf_methods,
260			       sizeof(struct adf_accel_dev) };
261
262DRIVER_MODULE_ORDERED(qat_4xxxvf,
263		      pci,
264		      adf_driver,
265		      adf_modevent,
266		      NULL,
267		      SI_ORDER_THIRD);
268MODULE_VERSION(qat_4xxxvf, 1);
269MODULE_DEPEND(qat_4xxxvf, qat_common, 1, 1, 1);
270MODULE_DEPEND(qat_4xxxvf, qat_api, 1, 1, 1);
271MODULE_DEPEND(qat_4xxxvf, linuxkpi, 1, 1, 1);
272