root/drivers/crypto/qat/qat_c3xxx/adf_c3xxx_hw_data.c

DEFINITIONS

1. get_accel_mask
2. get_ae_mask
3. get_num_accels
4. get_num_aes
5. get_misc_bar_id
6. get_etr_bar_id
7. get_sram_bar_id
8. get_sku
9. adf_get_arbiter_mapping
10. get_pf2vf_offset
11. get_vintmsk_offset
12. adf_enable_error_correction
13. adf_enable_ints
14. adf_pf_enable_vf2pf_comms
15. adf_init_hw_data_c3xxx
16. adf_clean_hw_data_c3xxx

   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 #include <adf_accel_devices.h>
  48 #include <adf_common_drv.h>
  49 #include <adf_pf2vf_msg.h>
  50 #include "adf_c3xxx_hw_data.h"
  51 
  52 /* Worker thread to service arbiter mappings based on dev SKUs */
  53 static const u32 thrd_to_arb_map_6_me_sku[] = {
  54         0x12222AAA, 0x11222AAA, 0x12222AAA,
  55         0x11222AAA, 0x12222AAA, 0x11222AAA
  56 };
  57 
  58 static struct adf_hw_device_class c3xxx_class = {
  59         .name = ADF_C3XXX_DEVICE_NAME,
  60         .type = DEV_C3XXX,
  61         .instances = 0
  62 };
  63 
  64 static u32 get_accel_mask(u32 fuse)
  65 {
  66         return (~fuse) >> ADF_C3XXX_ACCELERATORS_REG_OFFSET &
  67                 ADF_C3XXX_ACCELERATORS_MASK;
  68 }
  69 
  70 static u32 get_ae_mask(u32 fuse)
  71 {
  72         return (~fuse) & ADF_C3XXX_ACCELENGINES_MASK;
  73 }
  74 
  75 static u32 get_num_accels(struct adf_hw_device_data *self)
  76 {
  77         u32 i, ctr = 0;
  78 
  79         if (!self || !self->accel_mask)
  80                 return 0;
  81 
  82         for (i = 0; i < ADF_C3XXX_MAX_ACCELERATORS; i++) {
  83                 if (self->accel_mask & (1 << i))
  84                         ctr++;
  85         }
  86         return ctr;
  87 }
  88 
  89 static u32 get_num_aes(struct adf_hw_device_data *self)
  90 {
  91         u32 i, ctr = 0;
  92 
  93         if (!self || !self->ae_mask)
  94                 return 0;
  95 
  96         for (i = 0; i < ADF_C3XXX_MAX_ACCELENGINES; i++) {
  97                 if (self->ae_mask & (1 << i))
  98                         ctr++;
  99         }
 100         return ctr;
 101 }
 102 
 103 static u32 get_misc_bar_id(struct adf_hw_device_data *self)
 104 {
 105         return ADF_C3XXX_PMISC_BAR;
 106 }
 107 
 108 static u32 get_etr_bar_id(struct adf_hw_device_data *self)
 109 {
 110         return ADF_C3XXX_ETR_BAR;
 111 }
 112 
 113 static u32 get_sram_bar_id(struct adf_hw_device_data *self)
 114 {
 115         return 0;
 116 }
 117 
 118 static enum dev_sku_info get_sku(struct adf_hw_device_data *self)
 119 {
 120         int aes = get_num_aes(self);
 121 
 122         if (aes == 6)
 123                 return DEV_SKU_4;
 124 
 125         return DEV_SKU_UNKNOWN;
 126 }
 127 
 128 static void adf_get_arbiter_mapping(struct adf_accel_dev *accel_dev,
 129                                     u32 const **arb_map_config)
 130 {
 131         switch (accel_dev->accel_pci_dev.sku) {
 132         case DEV_SKU_4:
 133                 *arb_map_config = thrd_to_arb_map_6_me_sku;
 134                 break;
 135         default:
 136                 dev_err(&GET_DEV(accel_dev),
 137                         "The configuration doesn't match any SKU");
 138                 *arb_map_config = NULL;
 139         }
 140 }
 141 
 142 static u32 get_pf2vf_offset(u32 i)
 143 {
 144         return ADF_C3XXX_PF2VF_OFFSET(i);
 145 }
 146 
 147 static u32 get_vintmsk_offset(u32 i)
 148 {
 149         return ADF_C3XXX_VINTMSK_OFFSET(i);
 150 }
 151 
 152 static void adf_enable_error_correction(struct adf_accel_dev *accel_dev)
 153 {
 154         struct adf_hw_device_data *hw_device = accel_dev->hw_device;
 155         struct adf_bar *misc_bar = &GET_BARS(accel_dev)[ADF_C3XXX_PMISC_BAR];
 156         void __iomem *csr = misc_bar->virt_addr;
 157         unsigned int val, i;
 158 
 159         /* Enable Accel Engine error detection & correction */
 160         for (i = 0; i < hw_device->get_num_aes(hw_device); i++) {
 161                 val = ADF_CSR_RD(csr, ADF_C3XXX_AE_CTX_ENABLES(i));
 162                 val |= ADF_C3XXX_ENABLE_AE_ECC_ERR;
 163                 ADF_CSR_WR(csr, ADF_C3XXX_AE_CTX_ENABLES(i), val);
 164                 val = ADF_CSR_RD(csr, ADF_C3XXX_AE_MISC_CONTROL(i));
 165                 val |= ADF_C3XXX_ENABLE_AE_ECC_PARITY_CORR;
 166                 ADF_CSR_WR(csr, ADF_C3XXX_AE_MISC_CONTROL(i), val);
 167         }
 168 
 169         /* Enable shared memory error detection & correction */
 170         for (i = 0; i < hw_device->get_num_accels(hw_device); i++) {
 171                 val = ADF_CSR_RD(csr, ADF_C3XXX_UERRSSMSH(i));
 172                 val |= ADF_C3XXX_ERRSSMSH_EN;
 173                 ADF_CSR_WR(csr, ADF_C3XXX_UERRSSMSH(i), val);
 174                 val = ADF_CSR_RD(csr, ADF_C3XXX_CERRSSMSH(i));
 175                 val |= ADF_C3XXX_ERRSSMSH_EN;
 176                 ADF_CSR_WR(csr, ADF_C3XXX_CERRSSMSH(i), val);
 177         }
 178 }
 179 
 180 static void adf_enable_ints(struct adf_accel_dev *accel_dev)
 181 {
 182         void __iomem *addr;
 183 
 184         addr = (&GET_BARS(accel_dev)[ADF_C3XXX_PMISC_BAR])->virt_addr;
 185 
 186         /* Enable bundle and misc interrupts */
 187         ADF_CSR_WR(addr, ADF_C3XXX_SMIAPF0_MASK_OFFSET,
 188                    ADF_C3XXX_SMIA0_MASK);
 189         ADF_CSR_WR(addr, ADF_C3XXX_SMIAPF1_MASK_OFFSET,
 190                    ADF_C3XXX_SMIA1_MASK);
 191 }
 192 
 193 static int adf_pf_enable_vf2pf_comms(struct adf_accel_dev *accel_dev)
 194 {
 195         return 0;
 196 }
 197 
 198 void adf_init_hw_data_c3xxx(struct adf_hw_device_data *hw_data)
 199 {
 200         hw_data->dev_class = &c3xxx_class;
 201         hw_data->instance_id = c3xxx_class.instances++;
 202         hw_data->num_banks = ADF_C3XXX_ETR_MAX_BANKS;
 203         hw_data->num_accel = ADF_C3XXX_MAX_ACCELERATORS;
 204         hw_data->num_logical_accel = 1;
 205         hw_data->num_engines = ADF_C3XXX_MAX_ACCELENGINES;
 206         hw_data->tx_rx_gap = ADF_C3XXX_RX_RINGS_OFFSET;
 207         hw_data->tx_rings_mask = ADF_C3XXX_TX_RINGS_MASK;
 208         hw_data->alloc_irq = adf_isr_resource_alloc;
 209         hw_data->free_irq = adf_isr_resource_free;
 210         hw_data->enable_error_correction = adf_enable_error_correction;
 211         hw_data->get_accel_mask = get_accel_mask;
 212         hw_data->get_ae_mask = get_ae_mask;
 213         hw_data->get_num_accels = get_num_accels;
 214         hw_data->get_num_aes = get_num_aes;
 215         hw_data->get_sram_bar_id = get_sram_bar_id;
 216         hw_data->get_etr_bar_id = get_etr_bar_id;
 217         hw_data->get_misc_bar_id = get_misc_bar_id;
 218         hw_data->get_pf2vf_offset = get_pf2vf_offset;
 219         hw_data->get_vintmsk_offset = get_vintmsk_offset;
 220         hw_data->get_sku = get_sku;
 221         hw_data->fw_name = ADF_C3XXX_FW;
 222         hw_data->fw_mmp_name = ADF_C3XXX_MMP;
 223         hw_data->init_admin_comms = adf_init_admin_comms;
 224         hw_data->exit_admin_comms = adf_exit_admin_comms;
 225         hw_data->disable_iov = adf_disable_sriov;
 226         hw_data->send_admin_init = adf_send_admin_init;
 227         hw_data->init_arb = adf_init_arb;
 228         hw_data->exit_arb = adf_exit_arb;
 229         hw_data->get_arb_mapping = adf_get_arbiter_mapping;
 230         hw_data->enable_ints = adf_enable_ints;
 231         hw_data->enable_vf2pf_comms = adf_pf_enable_vf2pf_comms;
 232         hw_data->reset_device = adf_reset_flr;
 233         hw_data->min_iov_compat_ver = ADF_PFVF_COMPATIBILITY_VERSION;
 234 }
 235 
 236 void adf_clean_hw_data_c3xxx(struct adf_hw_device_data *hw_data)
 237 {
 238         hw_data->dev_class->instances--;
 239 }