[go: nahoru, domu]

1/*
2  This file is provided under a dual BSD/GPLv2 license.  When using or
3  redistributing this file, you may do so under either license.
4
5  GPL LICENSE SUMMARY
6  Copyright(c) 2014 Intel Corporation.
7  This program is free software; you can redistribute it and/or modify
8  it under the terms of version 2 of the GNU General Public License as
9  published by the Free Software Foundation.
10
11  This program is distributed in the hope that it will be useful, but
12  WITHOUT ANY WARRANTY; without even the implied warranty of
13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  General Public License for more details.
15
16  Contact Information:
17  qat-linux@intel.com
18
19  BSD LICENSE
20  Copyright(c) 2014 Intel Corporation.
21  Redistribution and use in source and binary forms, with or without
22  modification, are permitted provided that the following conditions
23  are met:
24
25    * Redistributions of source code must retain the above copyright
26      notice, this list of conditions and the following disclaimer.
27    * Redistributions in binary form must reproduce the above copyright
28      notice, this list of conditions and the following disclaimer in
29      the documentation and/or other materials provided with the
30      distribution.
31    * Neither the name of Intel Corporation nor the names of its
32      contributors may be used to endorse or promote products derived
33      from this software without specific prior written permission.
34
35  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
36  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
37  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
38  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
39  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
42  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
43  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
44  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
45  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
46*/
47#ifndef ADF_ACCEL_DEVICES_H_
48#define ADF_ACCEL_DEVICES_H_
49#include <linux/module.h>
50#include <linux/atomic.h>
51#include <linux/list.h>
52#include <linux/proc_fs.h>
53#include <linux/io.h>
54#include "adf_cfg_common.h"
55
56#define PCI_VENDOR_ID_INTEL 0x8086
57#define ADF_DH895XCC_DEVICE_NAME "dh895xcc"
58#define ADF_DH895XCC_PCI_DEVICE_ID 0x435
59#define ADF_DH895XCC_PMISC_BAR 1
60#define ADF_DH895XCC_ETR_BAR 2
61#define ADF_PCI_MAX_BARS 3
62#define ADF_DEVICE_NAME_LENGTH 32
63#define ADF_ETR_MAX_RINGS_PER_BANK 16
64#define ADF_MAX_MSIX_VECTOR_NAME 16
65#define ADF_DEVICE_NAME_PREFIX "qat_"
66
67enum adf_accel_capabilities {
68	ADF_ACCEL_CAPABILITIES_NULL = 0,
69	ADF_ACCEL_CAPABILITIES_CRYPTO_SYMMETRIC = 1,
70	ADF_ACCEL_CAPABILITIES_CRYPTO_ASYMMETRIC = 2,
71	ADF_ACCEL_CAPABILITIES_CIPHER = 4,
72	ADF_ACCEL_CAPABILITIES_AUTHENTICATION = 8,
73	ADF_ACCEL_CAPABILITIES_COMPRESSION = 32,
74	ADF_ACCEL_CAPABILITIES_LZS_COMPRESSION = 64,
75	ADF_ACCEL_CAPABILITIES_RANDOM_NUMBER = 128
76};
77
78struct adf_bar {
79	resource_size_t base_addr;
80	void __iomem *virt_addr;
81	resource_size_t size;
82} __packed;
83
84struct adf_accel_msix {
85	struct msix_entry *entries;
86	char **names;
87} __packed;
88
89struct adf_accel_pci {
90	struct pci_dev *pci_dev;
91	struct adf_accel_msix msix_entries;
92	struct adf_bar pci_bars[ADF_PCI_MAX_BARS];
93	uint8_t revid;
94	uint8_t sku;
95} __packed;
96
97enum dev_state {
98	DEV_DOWN = 0,
99	DEV_UP
100};
101
102enum dev_sku_info {
103	DEV_SKU_1 = 0,
104	DEV_SKU_2,
105	DEV_SKU_3,
106	DEV_SKU_4,
107	DEV_SKU_UNKNOWN,
108};
109
110static inline const char *get_sku_info(enum dev_sku_info info)
111{
112	switch (info) {
113	case DEV_SKU_1:
114		return "SKU1";
115	case DEV_SKU_2:
116		return "SKU2";
117	case DEV_SKU_3:
118		return "SKU3";
119	case DEV_SKU_4:
120		return "SKU4";
121	case DEV_SKU_UNKNOWN:
122	default:
123		break;
124	}
125	return "Unknown SKU";
126}
127
128struct adf_hw_device_class {
129	const char *name;
130	const enum adf_device_type type;
131	uint32_t instances;
132} __packed;
133
134struct adf_cfg_device_data;
135struct adf_accel_dev;
136struct adf_etr_data;
137struct adf_etr_ring_data;
138
139struct adf_hw_device_data {
140	struct adf_hw_device_class *dev_class;
141	uint32_t (*get_accel_mask)(uint32_t fuse);
142	uint32_t (*get_ae_mask)(uint32_t fuse);
143	uint32_t (*get_misc_bar_id)(struct adf_hw_device_data *self);
144	uint32_t (*get_etr_bar_id)(struct adf_hw_device_data *self);
145	uint32_t (*get_num_aes)(struct adf_hw_device_data *self);
146	uint32_t (*get_num_accels)(struct adf_hw_device_data *self);
147	enum dev_sku_info (*get_sku)(struct adf_hw_device_data *self);
148	void (*hw_arb_ring_enable)(struct adf_etr_ring_data *ring);
149	void (*hw_arb_ring_disable)(struct adf_etr_ring_data *ring);
150	int (*alloc_irq)(struct adf_accel_dev *accel_dev);
151	void (*free_irq)(struct adf_accel_dev *accel_dev);
152	void (*enable_error_correction)(struct adf_accel_dev *accel_dev);
153	const char *fw_name;
154	uint32_t pci_dev_id;
155	uint32_t fuses;
156	uint32_t accel_capabilities_mask;
157	uint16_t accel_mask;
158	uint16_t ae_mask;
159	uint16_t tx_rings_mask;
160	uint8_t tx_rx_gap;
161	uint8_t instance_id;
162	uint8_t num_banks;
163	uint8_t num_accel;
164	uint8_t num_logical_accel;
165	uint8_t num_engines;
166} __packed;
167
168/* CSR write macro */
169#define ADF_CSR_WR(csr_base, csr_offset, val) \
170	__raw_writel(val, csr_base + csr_offset)
171
172/* CSR read macro */
173#define ADF_CSR_RD(csr_base, csr_offset) __raw_readl(csr_base + csr_offset)
174
175#define GET_DEV(accel_dev) ((accel_dev)->accel_pci_dev.pci_dev->dev)
176#define GET_BARS(accel_dev) ((accel_dev)->accel_pci_dev.pci_bars)
177#define GET_HW_DATA(accel_dev) (accel_dev->hw_device)
178#define GET_MAX_BANKS(accel_dev) (GET_HW_DATA(accel_dev)->num_banks)
179#define GET_MAX_ACCELENGINES(accel_dev) (GET_HW_DATA(accel_dev)->num_engines)
180#define accel_to_pci_dev(accel_ptr) accel_ptr->accel_pci_dev.pci_dev
181
182struct adf_admin_comms;
183struct icp_qat_fw_loader_handle;
184struct adf_fw_loader_data {
185	struct icp_qat_fw_loader_handle *fw_loader;
186	const struct firmware *uof_fw;
187};
188
189struct adf_accel_dev {
190	struct adf_etr_data *transport;
191	struct adf_hw_device_data *hw_device;
192	struct adf_cfg_device_data *cfg;
193	struct adf_fw_loader_data *fw_loader;
194	struct adf_admin_comms *admin;
195	struct list_head crypto_list;
196	unsigned long status;
197	atomic_t ref_count;
198	struct dentry *debugfs_dir;
199	struct list_head list;
200	struct module *owner;
201	struct adf_accel_pci accel_pci_dev;
202	uint8_t accel_id;
203} __packed;
204#endif
205