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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 | /* This file is provided under a dual BSD/GPLv2 license. When using or redistributing this file, you may do so under either license. GPL LICENSE SUMMARY Copyright(c) 2014 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms of version 2 of the GNU General Public License as published by the Free Software Foundation. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. Contact Information: qat-linux@intel.com BSD LICENSE Copyright(c) 2014 Intel Corporation. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of Intel Corporation nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/pci.h> #include <linux/init.h> #include <linux/types.h> #include <linux/fs.h> #include <linux/slab.h> #include <linux/errno.h> #include <linux/device.h> #include <linux/dma-mapping.h> #include <linux/platform_device.h> #include <linux/workqueue.h> #include <linux/io.h> #include <adf_accel_devices.h> #include <adf_common_drv.h> #include <adf_cfg.h> #include "adf_dh895xccvf_hw_data.h" #define ADF_SYSTEM_DEVICE(device_id) \ {PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)} static const struct pci_device_id adf_pci_tbl[] = { ADF_SYSTEM_DEVICE(ADF_DH895XCCIOV_PCI_DEVICE_ID), {0,} }; MODULE_DEVICE_TABLE(pci, adf_pci_tbl); static int adf_probe(struct pci_dev *dev, const struct pci_device_id *ent); static void adf_remove(struct pci_dev *dev); static struct pci_driver adf_driver = { .id_table = adf_pci_tbl, .name = ADF_DH895XCCVF_DEVICE_NAME, .probe = adf_probe, .remove = adf_remove, }; static void adf_cleanup_pci_dev(struct adf_accel_dev *accel_dev) { pci_release_regions(accel_dev->accel_pci_dev.pci_dev); pci_disable_device(accel_dev->accel_pci_dev.pci_dev); } static void adf_cleanup_accel(struct adf_accel_dev *accel_dev) { struct adf_accel_pci *accel_pci_dev = &accel_dev->accel_pci_dev; struct adf_accel_dev *pf; int i; for (i = 0; i < ADF_PCI_MAX_BARS; i++) { struct adf_bar *bar = &accel_pci_dev->pci_bars[i]; if (bar->virt_addr) pci_iounmap(accel_pci_dev->pci_dev, bar->virt_addr); } if (accel_dev->hw_device) { switch (accel_pci_dev->pci_dev->device) { case ADF_DH895XCCIOV_PCI_DEVICE_ID: adf_clean_hw_data_dh895xcciov(accel_dev->hw_device); break; default: break; } kfree(accel_dev->hw_device); accel_dev->hw_device = NULL; } adf_cfg_dev_remove(accel_dev); debugfs_remove(accel_dev->debugfs_dir); pf = adf_devmgr_pci_to_accel_dev(accel_pci_dev->pci_dev->physfn); adf_devmgr_rm_dev(accel_dev, pf); } static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { struct adf_accel_dev *accel_dev; struct adf_accel_dev *pf; struct adf_accel_pci *accel_pci_dev; struct adf_hw_device_data *hw_data; char name[ADF_DEVICE_NAME_LENGTH]; unsigned int i, bar_nr; unsigned long bar_mask; int ret; switch (ent->device) { case ADF_DH895XCCIOV_PCI_DEVICE_ID: break; default: dev_err(&pdev->dev, "Invalid device 0x%x.\n", ent->device); return -ENODEV; } accel_dev = kzalloc_node(sizeof(*accel_dev), GFP_KERNEL, dev_to_node(&pdev->dev)); if (!accel_dev) return -ENOMEM; accel_dev->is_vf = true; pf = adf_devmgr_pci_to_accel_dev(pdev->physfn); accel_pci_dev = &accel_dev->accel_pci_dev; accel_pci_dev->pci_dev = pdev; /* Add accel device to accel table */ if (adf_devmgr_add_dev(accel_dev, pf)) { dev_err(&pdev->dev, "Failed to add new accelerator device.\n"); kfree(accel_dev); return -EFAULT; } INIT_LIST_HEAD(&accel_dev->crypto_list); accel_dev->owner = THIS_MODULE; /* Allocate and configure device configuration structure */ hw_data = kzalloc_node(sizeof(*hw_data), GFP_KERNEL, dev_to_node(&pdev->dev)); if (!hw_data) { ret = -ENOMEM; goto out_err; } accel_dev->hw_device = hw_data; adf_init_hw_data_dh895xcciov(accel_dev->hw_device); /* Get Accelerators and Accelerators Engines masks */ hw_data->accel_mask = hw_data->get_accel_mask(hw_data->fuses); hw_data->ae_mask = hw_data->get_ae_mask(hw_data->fuses); accel_pci_dev->sku = hw_data->get_sku(hw_data); /* Create dev top level debugfs entry */ snprintf(name, sizeof(name), "%s%s_%02x:%02d.%d", ADF_DEVICE_NAME_PREFIX, hw_data->dev_class->name, pdev->bus->number, PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn)); accel_dev->debugfs_dir = debugfs_create_dir(name, NULL); /* Create device configuration table */ ret = adf_cfg_dev_add(accel_dev); if (ret) goto out_err; /* enable PCI device */ if (pci_enable_device(pdev)) { ret = -EFAULT; goto out_err; } /* set dma identifier */ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) { if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))) { dev_err(&pdev->dev, "No usable DMA configuration\n"); ret = -EFAULT; goto out_err_disable; } else { pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); } } else { pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); } if (pci_request_regions(pdev, ADF_DH895XCCVF_DEVICE_NAME)) { ret = -EFAULT; goto out_err_disable; } /* Find and map all the device's BARS */ i = 0; bar_mask = pci_select_bars(pdev, IORESOURCE_MEM); for_each_set_bit(bar_nr, &bar_mask, ADF_PCI_MAX_BARS * 2) { struct adf_bar *bar = &accel_pci_dev->pci_bars[i++]; bar->base_addr = pci_resource_start(pdev, bar_nr); if (!bar->base_addr) break; bar->size = pci_resource_len(pdev, bar_nr); bar->virt_addr = pci_iomap(accel_pci_dev->pci_dev, bar_nr, 0); if (!bar->virt_addr) { dev_err(&pdev->dev, "Failed to map BAR %d\n", bar_nr); ret = -EFAULT; goto out_err_free_reg; } } pci_set_master(pdev); /* Completion for VF2PF request/response message exchange */ init_completion(&accel_dev->vf.iov_msg_completion); ret = qat_crypto_dev_config(accel_dev); if (ret) goto out_err_free_reg; ret = adf_dev_init(accel_dev); if (ret) goto out_err_dev_shutdown; set_bit(ADF_STATUS_PF_RUNNING, &accel_dev->status); ret = adf_dev_start(accel_dev); if (ret) goto out_err_dev_stop; return ret; out_err_dev_stop: adf_dev_stop(accel_dev); out_err_dev_shutdown: adf_dev_shutdown(accel_dev); out_err_free_reg: pci_release_regions(accel_pci_dev->pci_dev); out_err_disable: pci_disable_device(accel_pci_dev->pci_dev); out_err: adf_cleanup_accel(accel_dev); kfree(accel_dev); return ret; } static void adf_remove(struct pci_dev *pdev) { struct adf_accel_dev *accel_dev = adf_devmgr_pci_to_accel_dev(pdev); if (!accel_dev) { pr_err("QAT: Driver removal failed\n"); return; } adf_dev_stop(accel_dev); adf_dev_shutdown(accel_dev); adf_cleanup_accel(accel_dev); adf_cleanup_pci_dev(accel_dev); kfree(accel_dev); } static int __init adfdrv_init(void) { request_module("intel_qat"); if (pci_register_driver(&adf_driver)) { pr_err("QAT: Driver initialization failed\n"); return -EFAULT; } return 0; } static void __exit adfdrv_release(void) { pci_unregister_driver(&adf_driver); adf_clean_vf_map(true); } module_init(adfdrv_init); module_exit(adfdrv_release); MODULE_LICENSE("Dual BSD/GPL"); MODULE_AUTHOR("Intel"); MODULE_DESCRIPTION("Intel(R) QuickAssist Technology"); MODULE_VERSION(ADF_DRV_VERSION); |