Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1 | /* |
| 2 | * talitos - Freescale Integrated Security Engine (SEC) device driver |
| 3 | * |
Kim Phillips | 5228f0f | 2011-07-15 11:21:38 +0800 | [diff] [blame] | 4 | * Copyright (c) 2008-2011 Freescale Semiconductor, Inc. |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 5 | * |
| 6 | * Scatterlist Crypto API glue code copied from files with the following: |
| 7 | * Copyright (c) 2006-2007 Herbert Xu <herbert@gondor.apana.org.au> |
| 8 | * |
| 9 | * Crypto algorithm registration code copied from hifn driver: |
| 10 | * 2007+ Copyright (c) Evgeniy Polyakov <johnpol@2ka.mipt.ru> |
| 11 | * All rights reserved. |
| 12 | * |
| 13 | * This program is free software; you can redistribute it and/or modify |
| 14 | * it under the terms of the GNU General Public License as published by |
| 15 | * the Free Software Foundation; either version 2 of the License, or |
| 16 | * (at your option) any later version. |
| 17 | * |
| 18 | * This program is distributed in the hope that it will be useful, |
| 19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 21 | * GNU General Public License for more details. |
| 22 | * |
| 23 | * You should have received a copy of the GNU General Public License |
| 24 | * along with this program; if not, write to the Free Software |
| 25 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 26 | */ |
| 27 | |
| 28 | #include <linux/kernel.h> |
| 29 | #include <linux/module.h> |
| 30 | #include <linux/mod_devicetable.h> |
| 31 | #include <linux/device.h> |
| 32 | #include <linux/interrupt.h> |
| 33 | #include <linux/crypto.h> |
| 34 | #include <linux/hw_random.h> |
Rob Herring | 5af5073 | 2013-09-17 14:28:33 -0500 | [diff] [blame] | 35 | #include <linux/of_address.h> |
| 36 | #include <linux/of_irq.h> |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 37 | #include <linux/of_platform.h> |
| 38 | #include <linux/dma-mapping.h> |
| 39 | #include <linux/io.h> |
| 40 | #include <linux/spinlock.h> |
| 41 | #include <linux/rtnetlink.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 42 | #include <linux/slab.h> |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 43 | |
| 44 | #include <crypto/algapi.h> |
| 45 | #include <crypto/aes.h> |
Lee Nipper | 3952f17 | 2008-07-10 18:29:18 +0800 | [diff] [blame] | 46 | #include <crypto/des.h> |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 47 | #include <crypto/sha.h> |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 48 | #include <crypto/md5.h> |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 49 | #include <crypto/aead.h> |
| 50 | #include <crypto/authenc.h> |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 51 | #include <crypto/skcipher.h> |
Lee Nipper | acbf7c62 | 2010-05-19 19:19:33 +1000 | [diff] [blame] | 52 | #include <crypto/hash.h> |
| 53 | #include <crypto/internal/hash.h> |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 54 | #include <crypto/scatterwalk.h> |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 55 | |
| 56 | #include "talitos.h" |
| 57 | |
Kim Phillips | 81eb024 | 2009-08-13 11:51:51 +1000 | [diff] [blame] | 58 | static void to_talitos_ptr(struct talitos_ptr *talitos_ptr, dma_addr_t dma_addr) |
| 59 | { |
| 60 | talitos_ptr->ptr = cpu_to_be32(lower_32_bits(dma_addr)); |
Kim Phillips | a752447 | 2010-09-23 15:56:38 +0800 | [diff] [blame] | 61 | talitos_ptr->eptr = upper_32_bits(dma_addr); |
Kim Phillips | 81eb024 | 2009-08-13 11:51:51 +1000 | [diff] [blame] | 62 | } |
| 63 | |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 64 | /* |
| 65 | * map virtual single (contiguous) pointer to h/w descriptor pointer |
| 66 | */ |
| 67 | static void map_single_talitos_ptr(struct device *dev, |
| 68 | struct talitos_ptr *talitos_ptr, |
| 69 | unsigned short len, void *data, |
| 70 | unsigned char extent, |
| 71 | enum dma_data_direction dir) |
| 72 | { |
Kim Phillips | 81eb024 | 2009-08-13 11:51:51 +1000 | [diff] [blame] | 73 | dma_addr_t dma_addr = dma_map_single(dev, data, len, dir); |
| 74 | |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 75 | talitos_ptr->len = cpu_to_be16(len); |
Kim Phillips | 81eb024 | 2009-08-13 11:51:51 +1000 | [diff] [blame] | 76 | to_talitos_ptr(talitos_ptr, dma_addr); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 77 | talitos_ptr->j_extent = extent; |
| 78 | } |
| 79 | |
| 80 | /* |
| 81 | * unmap bus single (contiguous) h/w descriptor pointer |
| 82 | */ |
| 83 | static void unmap_single_talitos_ptr(struct device *dev, |
| 84 | struct talitos_ptr *talitos_ptr, |
| 85 | enum dma_data_direction dir) |
| 86 | { |
| 87 | dma_unmap_single(dev, be32_to_cpu(talitos_ptr->ptr), |
| 88 | be16_to_cpu(talitos_ptr->len), dir); |
| 89 | } |
| 90 | |
| 91 | static int reset_channel(struct device *dev, int ch) |
| 92 | { |
| 93 | struct talitos_private *priv = dev_get_drvdata(dev); |
| 94 | unsigned int timeout = TALITOS_TIMEOUT; |
| 95 | |
Kim Phillips | ad42d5f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 96 | setbits32(priv->chan[ch].reg + TALITOS_CCCR, TALITOS_CCCR_RESET); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 97 | |
Kim Phillips | ad42d5f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 98 | while ((in_be32(priv->chan[ch].reg + TALITOS_CCCR) & TALITOS_CCCR_RESET) |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 99 | && --timeout) |
| 100 | cpu_relax(); |
| 101 | |
| 102 | if (timeout == 0) { |
| 103 | dev_err(dev, "failed to reset channel %d\n", ch); |
| 104 | return -EIO; |
| 105 | } |
| 106 | |
Kim Phillips | 81eb024 | 2009-08-13 11:51:51 +1000 | [diff] [blame] | 107 | /* set 36-bit addressing, done writeback enable and done IRQ enable */ |
Kim Phillips | ad42d5f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 108 | setbits32(priv->chan[ch].reg + TALITOS_CCCR_LO, TALITOS_CCCR_LO_EAE | |
Kim Phillips | 81eb024 | 2009-08-13 11:51:51 +1000 | [diff] [blame] | 109 | TALITOS_CCCR_LO_CDWE | TALITOS_CCCR_LO_CDIE); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 110 | |
Kim Phillips | fe5720e | 2008-10-12 20:33:14 +0800 | [diff] [blame] | 111 | /* and ICCR writeback, if available */ |
| 112 | if (priv->features & TALITOS_FTR_HW_AUTH_CHECK) |
Kim Phillips | ad42d5f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 113 | setbits32(priv->chan[ch].reg + TALITOS_CCCR_LO, |
Kim Phillips | fe5720e | 2008-10-12 20:33:14 +0800 | [diff] [blame] | 114 | TALITOS_CCCR_LO_IWSE); |
| 115 | |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 116 | return 0; |
| 117 | } |
| 118 | |
| 119 | static int reset_device(struct device *dev) |
| 120 | { |
| 121 | struct talitos_private *priv = dev_get_drvdata(dev); |
| 122 | unsigned int timeout = TALITOS_TIMEOUT; |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 123 | u32 mcr = TALITOS_MCR_SWR; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 124 | |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 125 | setbits32(priv->reg + TALITOS_MCR, mcr); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 126 | |
| 127 | while ((in_be32(priv->reg + TALITOS_MCR) & TALITOS_MCR_SWR) |
| 128 | && --timeout) |
| 129 | cpu_relax(); |
| 130 | |
Kim Phillips | 2cdba3c | 2011-12-12 14:59:11 -0600 | [diff] [blame] | 131 | if (priv->irq[1]) { |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 132 | mcr = TALITOS_MCR_RCA1 | TALITOS_MCR_RCA3; |
| 133 | setbits32(priv->reg + TALITOS_MCR, mcr); |
| 134 | } |
| 135 | |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 136 | if (timeout == 0) { |
| 137 | dev_err(dev, "failed to reset device\n"); |
| 138 | return -EIO; |
| 139 | } |
| 140 | |
| 141 | return 0; |
| 142 | } |
| 143 | |
| 144 | /* |
| 145 | * Reset and initialize the device |
| 146 | */ |
| 147 | static int init_device(struct device *dev) |
| 148 | { |
| 149 | struct talitos_private *priv = dev_get_drvdata(dev); |
| 150 | int ch, err; |
| 151 | |
| 152 | /* |
| 153 | * Master reset |
| 154 | * errata documentation: warning: certain SEC interrupts |
| 155 | * are not fully cleared by writing the MCR:SWR bit, |
| 156 | * set bit twice to completely reset |
| 157 | */ |
| 158 | err = reset_device(dev); |
| 159 | if (err) |
| 160 | return err; |
| 161 | |
| 162 | err = reset_device(dev); |
| 163 | if (err) |
| 164 | return err; |
| 165 | |
| 166 | /* reset channels */ |
| 167 | for (ch = 0; ch < priv->num_channels; ch++) { |
| 168 | err = reset_channel(dev, ch); |
| 169 | if (err) |
| 170 | return err; |
| 171 | } |
| 172 | |
| 173 | /* enable channel done and error interrupts */ |
| 174 | setbits32(priv->reg + TALITOS_IMR, TALITOS_IMR_INIT); |
| 175 | setbits32(priv->reg + TALITOS_IMR_LO, TALITOS_IMR_LO_INIT); |
| 176 | |
Kim Phillips | fe5720e | 2008-10-12 20:33:14 +0800 | [diff] [blame] | 177 | /* disable integrity check error interrupts (use writeback instead) */ |
| 178 | if (priv->features & TALITOS_FTR_HW_AUTH_CHECK) |
| 179 | setbits32(priv->reg + TALITOS_MDEUICR_LO, |
| 180 | TALITOS_MDEUICR_LO_ICE); |
| 181 | |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 182 | return 0; |
| 183 | } |
| 184 | |
| 185 | /** |
| 186 | * talitos_submit - submits a descriptor to the device for processing |
| 187 | * @dev: the SEC device to be used |
Kim Phillips | 5228f0f | 2011-07-15 11:21:38 +0800 | [diff] [blame] | 188 | * @ch: the SEC device channel to be used |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 189 | * @desc: the descriptor to be processed by the device |
| 190 | * @callback: whom to call when processing is complete |
| 191 | * @context: a handle for use by caller (optional) |
| 192 | * |
| 193 | * desc must contain valid dma-mapped (bus physical) address pointers. |
| 194 | * callback must check err and feedback in descriptor header |
| 195 | * for device processing status. |
| 196 | */ |
Horia Geanta | 865d506 | 2012-07-03 19:16:52 +0300 | [diff] [blame] | 197 | int talitos_submit(struct device *dev, int ch, struct talitos_desc *desc, |
| 198 | void (*callback)(struct device *dev, |
| 199 | struct talitos_desc *desc, |
| 200 | void *context, int error), |
| 201 | void *context) |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 202 | { |
| 203 | struct talitos_private *priv = dev_get_drvdata(dev); |
| 204 | struct talitos_request *request; |
Kim Phillips | 5228f0f | 2011-07-15 11:21:38 +0800 | [diff] [blame] | 205 | unsigned long flags; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 206 | int head; |
| 207 | |
Kim Phillips | 4b992628 | 2009-08-13 11:50:38 +1000 | [diff] [blame] | 208 | spin_lock_irqsave(&priv->chan[ch].head_lock, flags); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 209 | |
Kim Phillips | 4b992628 | 2009-08-13 11:50:38 +1000 | [diff] [blame] | 210 | if (!atomic_inc_not_zero(&priv->chan[ch].submit_count)) { |
Kim Phillips | ec6644d | 2008-07-17 20:16:40 +0800 | [diff] [blame] | 211 | /* h/w fifo is full */ |
Kim Phillips | 4b992628 | 2009-08-13 11:50:38 +1000 | [diff] [blame] | 212 | spin_unlock_irqrestore(&priv->chan[ch].head_lock, flags); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 213 | return -EAGAIN; |
| 214 | } |
| 215 | |
Kim Phillips | 4b992628 | 2009-08-13 11:50:38 +1000 | [diff] [blame] | 216 | head = priv->chan[ch].head; |
| 217 | request = &priv->chan[ch].fifo[head]; |
Kim Phillips | ec6644d | 2008-07-17 20:16:40 +0800 | [diff] [blame] | 218 | |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 219 | /* map descriptor and save caller data */ |
| 220 | request->dma_desc = dma_map_single(dev, desc, sizeof(*desc), |
| 221 | DMA_BIDIRECTIONAL); |
| 222 | request->callback = callback; |
| 223 | request->context = context; |
| 224 | |
| 225 | /* increment fifo head */ |
Kim Phillips | 4b992628 | 2009-08-13 11:50:38 +1000 | [diff] [blame] | 226 | priv->chan[ch].head = (priv->chan[ch].head + 1) & (priv->fifo_len - 1); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 227 | |
| 228 | smp_wmb(); |
| 229 | request->desc = desc; |
| 230 | |
| 231 | /* GO! */ |
| 232 | wmb(); |
Kim Phillips | ad42d5f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 233 | out_be32(priv->chan[ch].reg + TALITOS_FF, |
| 234 | upper_32_bits(request->dma_desc)); |
| 235 | out_be32(priv->chan[ch].reg + TALITOS_FF_LO, |
Kim Phillips | a752447 | 2010-09-23 15:56:38 +0800 | [diff] [blame] | 236 | lower_32_bits(request->dma_desc)); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 237 | |
Kim Phillips | 4b992628 | 2009-08-13 11:50:38 +1000 | [diff] [blame] | 238 | spin_unlock_irqrestore(&priv->chan[ch].head_lock, flags); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 239 | |
| 240 | return -EINPROGRESS; |
| 241 | } |
Horia Geanta | 865d506 | 2012-07-03 19:16:52 +0300 | [diff] [blame] | 242 | EXPORT_SYMBOL(talitos_submit); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 243 | |
| 244 | /* |
| 245 | * process what was done, notify callback of error if not |
| 246 | */ |
| 247 | static void flush_channel(struct device *dev, int ch, int error, int reset_ch) |
| 248 | { |
| 249 | struct talitos_private *priv = dev_get_drvdata(dev); |
| 250 | struct talitos_request *request, saved_req; |
| 251 | unsigned long flags; |
| 252 | int tail, status; |
| 253 | |
Kim Phillips | 4b992628 | 2009-08-13 11:50:38 +1000 | [diff] [blame] | 254 | spin_lock_irqsave(&priv->chan[ch].tail_lock, flags); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 255 | |
Kim Phillips | 4b992628 | 2009-08-13 11:50:38 +1000 | [diff] [blame] | 256 | tail = priv->chan[ch].tail; |
| 257 | while (priv->chan[ch].fifo[tail].desc) { |
| 258 | request = &priv->chan[ch].fifo[tail]; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 259 | |
| 260 | /* descriptors with their done bits set don't get the error */ |
| 261 | rmb(); |
Lee Nipper | ca38a81 | 2008-12-20 17:09:25 +1100 | [diff] [blame] | 262 | if ((request->desc->hdr & DESC_HDR_DONE) == DESC_HDR_DONE) |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 263 | status = 0; |
Lee Nipper | ca38a81 | 2008-12-20 17:09:25 +1100 | [diff] [blame] | 264 | else |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 265 | if (!error) |
| 266 | break; |
| 267 | else |
| 268 | status = error; |
| 269 | |
| 270 | dma_unmap_single(dev, request->dma_desc, |
Kim Phillips | e938e46 | 2009-03-29 15:53:23 +0800 | [diff] [blame] | 271 | sizeof(struct talitos_desc), |
| 272 | DMA_BIDIRECTIONAL); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 273 | |
| 274 | /* copy entries so we can call callback outside lock */ |
| 275 | saved_req.desc = request->desc; |
| 276 | saved_req.callback = request->callback; |
| 277 | saved_req.context = request->context; |
| 278 | |
| 279 | /* release request entry in fifo */ |
| 280 | smp_wmb(); |
| 281 | request->desc = NULL; |
| 282 | |
| 283 | /* increment fifo tail */ |
Kim Phillips | 4b992628 | 2009-08-13 11:50:38 +1000 | [diff] [blame] | 284 | priv->chan[ch].tail = (tail + 1) & (priv->fifo_len - 1); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 285 | |
Kim Phillips | 4b992628 | 2009-08-13 11:50:38 +1000 | [diff] [blame] | 286 | spin_unlock_irqrestore(&priv->chan[ch].tail_lock, flags); |
Kim Phillips | ec6644d | 2008-07-17 20:16:40 +0800 | [diff] [blame] | 287 | |
Kim Phillips | 4b992628 | 2009-08-13 11:50:38 +1000 | [diff] [blame] | 288 | atomic_dec(&priv->chan[ch].submit_count); |
Kim Phillips | ec6644d | 2008-07-17 20:16:40 +0800 | [diff] [blame] | 289 | |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 290 | saved_req.callback(dev, saved_req.desc, saved_req.context, |
| 291 | status); |
| 292 | /* channel may resume processing in single desc error case */ |
| 293 | if (error && !reset_ch && status == error) |
| 294 | return; |
Kim Phillips | 4b992628 | 2009-08-13 11:50:38 +1000 | [diff] [blame] | 295 | spin_lock_irqsave(&priv->chan[ch].tail_lock, flags); |
| 296 | tail = priv->chan[ch].tail; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 297 | } |
| 298 | |
Kim Phillips | 4b992628 | 2009-08-13 11:50:38 +1000 | [diff] [blame] | 299 | spin_unlock_irqrestore(&priv->chan[ch].tail_lock, flags); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 300 | } |
| 301 | |
| 302 | /* |
| 303 | * process completed requests for channels that have done status |
| 304 | */ |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 305 | #define DEF_TALITOS_DONE(name, ch_done_mask) \ |
| 306 | static void talitos_done_##name(unsigned long data) \ |
| 307 | { \ |
| 308 | struct device *dev = (struct device *)data; \ |
| 309 | struct talitos_private *priv = dev_get_drvdata(dev); \ |
Horia Geanta | 511d63c | 2012-03-30 17:49:53 +0300 | [diff] [blame] | 310 | unsigned long flags; \ |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 311 | \ |
| 312 | if (ch_done_mask & 1) \ |
| 313 | flush_channel(dev, 0, 0, 0); \ |
| 314 | if (priv->num_channels == 1) \ |
| 315 | goto out; \ |
| 316 | if (ch_done_mask & (1 << 2)) \ |
| 317 | flush_channel(dev, 1, 0, 0); \ |
| 318 | if (ch_done_mask & (1 << 4)) \ |
| 319 | flush_channel(dev, 2, 0, 0); \ |
| 320 | if (ch_done_mask & (1 << 6)) \ |
| 321 | flush_channel(dev, 3, 0, 0); \ |
| 322 | \ |
| 323 | out: \ |
| 324 | /* At this point, all completed channels have been processed */ \ |
| 325 | /* Unmask done interrupts for channels completed later on. */ \ |
Horia Geanta | 511d63c | 2012-03-30 17:49:53 +0300 | [diff] [blame] | 326 | spin_lock_irqsave(&priv->reg_lock, flags); \ |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 327 | setbits32(priv->reg + TALITOS_IMR, ch_done_mask); \ |
| 328 | setbits32(priv->reg + TALITOS_IMR_LO, TALITOS_IMR_LO_INIT); \ |
Horia Geanta | 511d63c | 2012-03-30 17:49:53 +0300 | [diff] [blame] | 329 | spin_unlock_irqrestore(&priv->reg_lock, flags); \ |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 330 | } |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 331 | DEF_TALITOS_DONE(4ch, TALITOS_ISR_4CHDONE) |
| 332 | DEF_TALITOS_DONE(ch0_2, TALITOS_ISR_CH_0_2_DONE) |
| 333 | DEF_TALITOS_DONE(ch1_3, TALITOS_ISR_CH_1_3_DONE) |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 334 | |
| 335 | /* |
| 336 | * locate current (offending) descriptor |
| 337 | */ |
Kim Phillips | 3e721ae | 2011-10-21 15:20:28 +0200 | [diff] [blame] | 338 | static u32 current_desc_hdr(struct device *dev, int ch) |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 339 | { |
| 340 | struct talitos_private *priv = dev_get_drvdata(dev); |
Horia Geanta | b62ffd8 | 2013-11-13 12:20:37 +0200 | [diff] [blame] | 341 | int tail, iter; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 342 | dma_addr_t cur_desc; |
| 343 | |
Horia Geanta | b62ffd8 | 2013-11-13 12:20:37 +0200 | [diff] [blame] | 344 | cur_desc = ((u64)in_be32(priv->chan[ch].reg + TALITOS_CDPR)) << 32; |
| 345 | cur_desc |= in_be32(priv->chan[ch].reg + TALITOS_CDPR_LO); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 346 | |
Horia Geanta | b62ffd8 | 2013-11-13 12:20:37 +0200 | [diff] [blame] | 347 | if (!cur_desc) { |
| 348 | dev_err(dev, "CDPR is NULL, giving up search for offending descriptor\n"); |
| 349 | return 0; |
| 350 | } |
| 351 | |
| 352 | tail = priv->chan[ch].tail; |
| 353 | |
| 354 | iter = tail; |
| 355 | while (priv->chan[ch].fifo[iter].dma_desc != cur_desc) { |
| 356 | iter = (iter + 1) & (priv->fifo_len - 1); |
| 357 | if (iter == tail) { |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 358 | dev_err(dev, "couldn't locate current descriptor\n"); |
Kim Phillips | 3e721ae | 2011-10-21 15:20:28 +0200 | [diff] [blame] | 359 | return 0; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 360 | } |
| 361 | } |
| 362 | |
Horia Geanta | b62ffd8 | 2013-11-13 12:20:37 +0200 | [diff] [blame] | 363 | return priv->chan[ch].fifo[iter].desc->hdr; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 364 | } |
| 365 | |
| 366 | /* |
| 367 | * user diagnostics; report root cause of error based on execution unit status |
| 368 | */ |
Kim Phillips | 3e721ae | 2011-10-21 15:20:28 +0200 | [diff] [blame] | 369 | static void report_eu_error(struct device *dev, int ch, u32 desc_hdr) |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 370 | { |
| 371 | struct talitos_private *priv = dev_get_drvdata(dev); |
| 372 | int i; |
| 373 | |
Kim Phillips | 3e721ae | 2011-10-21 15:20:28 +0200 | [diff] [blame] | 374 | if (!desc_hdr) |
Kim Phillips | ad42d5f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 375 | desc_hdr = in_be32(priv->chan[ch].reg + TALITOS_DESCBUF); |
Kim Phillips | 3e721ae | 2011-10-21 15:20:28 +0200 | [diff] [blame] | 376 | |
| 377 | switch (desc_hdr & DESC_HDR_SEL0_MASK) { |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 378 | case DESC_HDR_SEL0_AFEU: |
| 379 | dev_err(dev, "AFEUISR 0x%08x_%08x\n", |
| 380 | in_be32(priv->reg + TALITOS_AFEUISR), |
| 381 | in_be32(priv->reg + TALITOS_AFEUISR_LO)); |
| 382 | break; |
| 383 | case DESC_HDR_SEL0_DEU: |
| 384 | dev_err(dev, "DEUISR 0x%08x_%08x\n", |
| 385 | in_be32(priv->reg + TALITOS_DEUISR), |
| 386 | in_be32(priv->reg + TALITOS_DEUISR_LO)); |
| 387 | break; |
| 388 | case DESC_HDR_SEL0_MDEUA: |
| 389 | case DESC_HDR_SEL0_MDEUB: |
| 390 | dev_err(dev, "MDEUISR 0x%08x_%08x\n", |
| 391 | in_be32(priv->reg + TALITOS_MDEUISR), |
| 392 | in_be32(priv->reg + TALITOS_MDEUISR_LO)); |
| 393 | break; |
| 394 | case DESC_HDR_SEL0_RNG: |
| 395 | dev_err(dev, "RNGUISR 0x%08x_%08x\n", |
| 396 | in_be32(priv->reg + TALITOS_RNGUISR), |
| 397 | in_be32(priv->reg + TALITOS_RNGUISR_LO)); |
| 398 | break; |
| 399 | case DESC_HDR_SEL0_PKEU: |
| 400 | dev_err(dev, "PKEUISR 0x%08x_%08x\n", |
| 401 | in_be32(priv->reg + TALITOS_PKEUISR), |
| 402 | in_be32(priv->reg + TALITOS_PKEUISR_LO)); |
| 403 | break; |
| 404 | case DESC_HDR_SEL0_AESU: |
| 405 | dev_err(dev, "AESUISR 0x%08x_%08x\n", |
| 406 | in_be32(priv->reg + TALITOS_AESUISR), |
| 407 | in_be32(priv->reg + TALITOS_AESUISR_LO)); |
| 408 | break; |
| 409 | case DESC_HDR_SEL0_CRCU: |
| 410 | dev_err(dev, "CRCUISR 0x%08x_%08x\n", |
| 411 | in_be32(priv->reg + TALITOS_CRCUISR), |
| 412 | in_be32(priv->reg + TALITOS_CRCUISR_LO)); |
| 413 | break; |
| 414 | case DESC_HDR_SEL0_KEU: |
| 415 | dev_err(dev, "KEUISR 0x%08x_%08x\n", |
| 416 | in_be32(priv->reg + TALITOS_KEUISR), |
| 417 | in_be32(priv->reg + TALITOS_KEUISR_LO)); |
| 418 | break; |
| 419 | } |
| 420 | |
Kim Phillips | 3e721ae | 2011-10-21 15:20:28 +0200 | [diff] [blame] | 421 | switch (desc_hdr & DESC_HDR_SEL1_MASK) { |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 422 | case DESC_HDR_SEL1_MDEUA: |
| 423 | case DESC_HDR_SEL1_MDEUB: |
| 424 | dev_err(dev, "MDEUISR 0x%08x_%08x\n", |
| 425 | in_be32(priv->reg + TALITOS_MDEUISR), |
| 426 | in_be32(priv->reg + TALITOS_MDEUISR_LO)); |
| 427 | break; |
| 428 | case DESC_HDR_SEL1_CRCU: |
| 429 | dev_err(dev, "CRCUISR 0x%08x_%08x\n", |
| 430 | in_be32(priv->reg + TALITOS_CRCUISR), |
| 431 | in_be32(priv->reg + TALITOS_CRCUISR_LO)); |
| 432 | break; |
| 433 | } |
| 434 | |
| 435 | for (i = 0; i < 8; i++) |
| 436 | dev_err(dev, "DESCBUF 0x%08x_%08x\n", |
Kim Phillips | ad42d5f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 437 | in_be32(priv->chan[ch].reg + TALITOS_DESCBUF + 8*i), |
| 438 | in_be32(priv->chan[ch].reg + TALITOS_DESCBUF_LO + 8*i)); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 439 | } |
| 440 | |
| 441 | /* |
| 442 | * recover from error interrupts |
| 443 | */ |
Kim Phillips | 5e718a0 | 2011-12-12 14:59:12 -0600 | [diff] [blame] | 444 | static void talitos_error(struct device *dev, u32 isr, u32 isr_lo) |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 445 | { |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 446 | struct talitos_private *priv = dev_get_drvdata(dev); |
| 447 | unsigned int timeout = TALITOS_TIMEOUT; |
| 448 | int ch, error, reset_dev = 0, reset_ch = 0; |
Kim Phillips | 40405f1 | 2008-10-12 20:19:35 +0800 | [diff] [blame] | 449 | u32 v, v_lo; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 450 | |
| 451 | for (ch = 0; ch < priv->num_channels; ch++) { |
| 452 | /* skip channels without errors */ |
| 453 | if (!(isr & (1 << (ch * 2 + 1)))) |
| 454 | continue; |
| 455 | |
| 456 | error = -EINVAL; |
| 457 | |
Kim Phillips | ad42d5f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 458 | v = in_be32(priv->chan[ch].reg + TALITOS_CCPSR); |
| 459 | v_lo = in_be32(priv->chan[ch].reg + TALITOS_CCPSR_LO); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 460 | |
| 461 | if (v_lo & TALITOS_CCPSR_LO_DOF) { |
| 462 | dev_err(dev, "double fetch fifo overflow error\n"); |
| 463 | error = -EAGAIN; |
| 464 | reset_ch = 1; |
| 465 | } |
| 466 | if (v_lo & TALITOS_CCPSR_LO_SOF) { |
| 467 | /* h/w dropped descriptor */ |
| 468 | dev_err(dev, "single fetch fifo overflow error\n"); |
| 469 | error = -EAGAIN; |
| 470 | } |
| 471 | if (v_lo & TALITOS_CCPSR_LO_MDTE) |
| 472 | dev_err(dev, "master data transfer error\n"); |
| 473 | if (v_lo & TALITOS_CCPSR_LO_SGDLZ) |
| 474 | dev_err(dev, "s/g data length zero error\n"); |
| 475 | if (v_lo & TALITOS_CCPSR_LO_FPZ) |
| 476 | dev_err(dev, "fetch pointer zero error\n"); |
| 477 | if (v_lo & TALITOS_CCPSR_LO_IDH) |
| 478 | dev_err(dev, "illegal descriptor header error\n"); |
| 479 | if (v_lo & TALITOS_CCPSR_LO_IEU) |
| 480 | dev_err(dev, "invalid execution unit error\n"); |
| 481 | if (v_lo & TALITOS_CCPSR_LO_EU) |
Kim Phillips | 3e721ae | 2011-10-21 15:20:28 +0200 | [diff] [blame] | 482 | report_eu_error(dev, ch, current_desc_hdr(dev, ch)); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 483 | if (v_lo & TALITOS_CCPSR_LO_GB) |
| 484 | dev_err(dev, "gather boundary error\n"); |
| 485 | if (v_lo & TALITOS_CCPSR_LO_GRL) |
| 486 | dev_err(dev, "gather return/length error\n"); |
| 487 | if (v_lo & TALITOS_CCPSR_LO_SB) |
| 488 | dev_err(dev, "scatter boundary error\n"); |
| 489 | if (v_lo & TALITOS_CCPSR_LO_SRL) |
| 490 | dev_err(dev, "scatter return/length error\n"); |
| 491 | |
| 492 | flush_channel(dev, ch, error, reset_ch); |
| 493 | |
| 494 | if (reset_ch) { |
| 495 | reset_channel(dev, ch); |
| 496 | } else { |
Kim Phillips | ad42d5f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 497 | setbits32(priv->chan[ch].reg + TALITOS_CCCR, |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 498 | TALITOS_CCCR_CONT); |
Kim Phillips | ad42d5f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 499 | setbits32(priv->chan[ch].reg + TALITOS_CCCR_LO, 0); |
| 500 | while ((in_be32(priv->chan[ch].reg + TALITOS_CCCR) & |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 501 | TALITOS_CCCR_CONT) && --timeout) |
| 502 | cpu_relax(); |
| 503 | if (timeout == 0) { |
| 504 | dev_err(dev, "failed to restart channel %d\n", |
| 505 | ch); |
| 506 | reset_dev = 1; |
| 507 | } |
| 508 | } |
| 509 | } |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 510 | if (reset_dev || isr & ~TALITOS_ISR_4CHERR || isr_lo) { |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 511 | dev_err(dev, "done overflow, internal time out, or rngu error: " |
| 512 | "ISR 0x%08x_%08x\n", isr, isr_lo); |
| 513 | |
| 514 | /* purge request queues */ |
| 515 | for (ch = 0; ch < priv->num_channels; ch++) |
| 516 | flush_channel(dev, ch, -EIO, 1); |
| 517 | |
| 518 | /* reset and reinitialize the device */ |
| 519 | init_device(dev); |
| 520 | } |
| 521 | } |
| 522 | |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 523 | #define DEF_TALITOS_INTERRUPT(name, ch_done_mask, ch_err_mask, tlet) \ |
| 524 | static irqreturn_t talitos_interrupt_##name(int irq, void *data) \ |
| 525 | { \ |
| 526 | struct device *dev = data; \ |
| 527 | struct talitos_private *priv = dev_get_drvdata(dev); \ |
| 528 | u32 isr, isr_lo; \ |
Horia Geanta | 511d63c | 2012-03-30 17:49:53 +0300 | [diff] [blame] | 529 | unsigned long flags; \ |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 530 | \ |
Horia Geanta | 511d63c | 2012-03-30 17:49:53 +0300 | [diff] [blame] | 531 | spin_lock_irqsave(&priv->reg_lock, flags); \ |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 532 | isr = in_be32(priv->reg + TALITOS_ISR); \ |
| 533 | isr_lo = in_be32(priv->reg + TALITOS_ISR_LO); \ |
| 534 | /* Acknowledge interrupt */ \ |
| 535 | out_be32(priv->reg + TALITOS_ICR, isr & (ch_done_mask | ch_err_mask)); \ |
| 536 | out_be32(priv->reg + TALITOS_ICR_LO, isr_lo); \ |
| 537 | \ |
Horia Geanta | 511d63c | 2012-03-30 17:49:53 +0300 | [diff] [blame] | 538 | if (unlikely(isr & ch_err_mask || isr_lo)) { \ |
| 539 | spin_unlock_irqrestore(&priv->reg_lock, flags); \ |
| 540 | talitos_error(dev, isr & ch_err_mask, isr_lo); \ |
| 541 | } \ |
| 542 | else { \ |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 543 | if (likely(isr & ch_done_mask)) { \ |
| 544 | /* mask further done interrupts. */ \ |
| 545 | clrbits32(priv->reg + TALITOS_IMR, ch_done_mask); \ |
| 546 | /* done_task will unmask done interrupts at exit */ \ |
| 547 | tasklet_schedule(&priv->done_task[tlet]); \ |
| 548 | } \ |
Horia Geanta | 511d63c | 2012-03-30 17:49:53 +0300 | [diff] [blame] | 549 | spin_unlock_irqrestore(&priv->reg_lock, flags); \ |
| 550 | } \ |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 551 | \ |
| 552 | return (isr & (ch_done_mask | ch_err_mask) || isr_lo) ? IRQ_HANDLED : \ |
| 553 | IRQ_NONE; \ |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 554 | } |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 555 | DEF_TALITOS_INTERRUPT(4ch, TALITOS_ISR_4CHDONE, TALITOS_ISR_4CHERR, 0) |
| 556 | DEF_TALITOS_INTERRUPT(ch0_2, TALITOS_ISR_CH_0_2_DONE, TALITOS_ISR_CH_0_2_ERR, 0) |
| 557 | DEF_TALITOS_INTERRUPT(ch1_3, TALITOS_ISR_CH_1_3_DONE, TALITOS_ISR_CH_1_3_ERR, 1) |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 558 | |
| 559 | /* |
| 560 | * hwrng |
| 561 | */ |
| 562 | static int talitos_rng_data_present(struct hwrng *rng, int wait) |
| 563 | { |
| 564 | struct device *dev = (struct device *)rng->priv; |
| 565 | struct talitos_private *priv = dev_get_drvdata(dev); |
| 566 | u32 ofl; |
| 567 | int i; |
| 568 | |
| 569 | for (i = 0; i < 20; i++) { |
| 570 | ofl = in_be32(priv->reg + TALITOS_RNGUSR_LO) & |
| 571 | TALITOS_RNGUSR_LO_OFL; |
| 572 | if (ofl || !wait) |
| 573 | break; |
| 574 | udelay(10); |
| 575 | } |
| 576 | |
| 577 | return !!ofl; |
| 578 | } |
| 579 | |
| 580 | static int talitos_rng_data_read(struct hwrng *rng, u32 *data) |
| 581 | { |
| 582 | struct device *dev = (struct device *)rng->priv; |
| 583 | struct talitos_private *priv = dev_get_drvdata(dev); |
| 584 | |
| 585 | /* rng fifo requires 64-bit accesses */ |
| 586 | *data = in_be32(priv->reg + TALITOS_RNGU_FIFO); |
| 587 | *data = in_be32(priv->reg + TALITOS_RNGU_FIFO_LO); |
| 588 | |
| 589 | return sizeof(u32); |
| 590 | } |
| 591 | |
| 592 | static int talitos_rng_init(struct hwrng *rng) |
| 593 | { |
| 594 | struct device *dev = (struct device *)rng->priv; |
| 595 | struct talitos_private *priv = dev_get_drvdata(dev); |
| 596 | unsigned int timeout = TALITOS_TIMEOUT; |
| 597 | |
| 598 | setbits32(priv->reg + TALITOS_RNGURCR_LO, TALITOS_RNGURCR_LO_SR); |
| 599 | while (!(in_be32(priv->reg + TALITOS_RNGUSR_LO) & TALITOS_RNGUSR_LO_RD) |
| 600 | && --timeout) |
| 601 | cpu_relax(); |
| 602 | if (timeout == 0) { |
| 603 | dev_err(dev, "failed to reset rng hw\n"); |
| 604 | return -ENODEV; |
| 605 | } |
| 606 | |
| 607 | /* start generating */ |
| 608 | setbits32(priv->reg + TALITOS_RNGUDSR_LO, 0); |
| 609 | |
| 610 | return 0; |
| 611 | } |
| 612 | |
| 613 | static int talitos_register_rng(struct device *dev) |
| 614 | { |
| 615 | struct talitos_private *priv = dev_get_drvdata(dev); |
| 616 | |
| 617 | priv->rng.name = dev_driver_string(dev), |
| 618 | priv->rng.init = talitos_rng_init, |
| 619 | priv->rng.data_present = talitos_rng_data_present, |
| 620 | priv->rng.data_read = talitos_rng_data_read, |
| 621 | priv->rng.priv = (unsigned long)dev; |
| 622 | |
| 623 | return hwrng_register(&priv->rng); |
| 624 | } |
| 625 | |
| 626 | static void talitos_unregister_rng(struct device *dev) |
| 627 | { |
| 628 | struct talitos_private *priv = dev_get_drvdata(dev); |
| 629 | |
| 630 | hwrng_unregister(&priv->rng); |
| 631 | } |
| 632 | |
| 633 | /* |
| 634 | * crypto alg |
| 635 | */ |
| 636 | #define TALITOS_CRA_PRIORITY 3000 |
Horia Geanta | 357fb60 | 2012-07-03 19:16:53 +0300 | [diff] [blame] | 637 | #define TALITOS_MAX_KEY_SIZE 96 |
Lee Nipper | 3952f17 | 2008-07-10 18:29:18 +0800 | [diff] [blame] | 638 | #define TALITOS_MAX_IV_LENGTH 16 /* max of AES_BLOCK_SIZE, DES3_EDE_BLOCK_SIZE */ |
Lee Nipper | 70bcaca | 2008-07-03 19:08:46 +0800 | [diff] [blame] | 639 | |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 640 | #define MD5_BLOCK_SIZE 64 |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 641 | |
| 642 | struct talitos_ctx { |
| 643 | struct device *dev; |
Kim Phillips | 5228f0f | 2011-07-15 11:21:38 +0800 | [diff] [blame] | 644 | int ch; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 645 | __be32 desc_hdr_template; |
| 646 | u8 key[TALITOS_MAX_KEY_SIZE]; |
Lee Nipper | 70bcaca | 2008-07-03 19:08:46 +0800 | [diff] [blame] | 647 | u8 iv[TALITOS_MAX_IV_LENGTH]; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 648 | unsigned int keylen; |
| 649 | unsigned int enckeylen; |
| 650 | unsigned int authkeylen; |
| 651 | unsigned int authsize; |
| 652 | }; |
| 653 | |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 654 | #define HASH_MAX_BLOCK_SIZE SHA512_BLOCK_SIZE |
| 655 | #define TALITOS_MDEU_MAX_CONTEXT_SIZE TALITOS_MDEU_CONTEXT_SIZE_SHA384_SHA512 |
| 656 | |
| 657 | struct talitos_ahash_req_ctx { |
Kim Phillips | 60f208d7 | 2010-05-19 19:21:53 +1000 | [diff] [blame] | 658 | u32 hw_context[TALITOS_MDEU_MAX_CONTEXT_SIZE / sizeof(u32)]; |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 659 | unsigned int hw_context_size; |
| 660 | u8 buf[HASH_MAX_BLOCK_SIZE]; |
| 661 | u8 bufnext[HASH_MAX_BLOCK_SIZE]; |
Kim Phillips | 60f208d7 | 2010-05-19 19:21:53 +1000 | [diff] [blame] | 662 | unsigned int swinit; |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 663 | unsigned int first; |
| 664 | unsigned int last; |
| 665 | unsigned int to_hash_later; |
Lee Nipper | 5e833bc | 2010-06-16 15:29:15 +1000 | [diff] [blame] | 666 | u64 nbuf; |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 667 | struct scatterlist bufsl[2]; |
| 668 | struct scatterlist *psrc; |
| 669 | }; |
| 670 | |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 671 | static int aead_setauthsize(struct crypto_aead *authenc, |
| 672 | unsigned int authsize) |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 673 | { |
| 674 | struct talitos_ctx *ctx = crypto_aead_ctx(authenc); |
| 675 | |
| 676 | ctx->authsize = authsize; |
| 677 | |
| 678 | return 0; |
| 679 | } |
| 680 | |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 681 | static int aead_setkey(struct crypto_aead *authenc, |
| 682 | const u8 *key, unsigned int keylen) |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 683 | { |
| 684 | struct talitos_ctx *ctx = crypto_aead_ctx(authenc); |
Mathias Krause | c306a98 | 2013-10-15 13:49:34 +0200 | [diff] [blame] | 685 | struct crypto_authenc_keys keys; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 686 | |
Mathias Krause | c306a98 | 2013-10-15 13:49:34 +0200 | [diff] [blame] | 687 | if (crypto_authenc_extractkeys(&keys, key, keylen) != 0) |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 688 | goto badkey; |
| 689 | |
Mathias Krause | c306a98 | 2013-10-15 13:49:34 +0200 | [diff] [blame] | 690 | if (keys.authkeylen + keys.enckeylen > TALITOS_MAX_KEY_SIZE) |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 691 | goto badkey; |
| 692 | |
Mathias Krause | c306a98 | 2013-10-15 13:49:34 +0200 | [diff] [blame] | 693 | memcpy(ctx->key, keys.authkey, keys.authkeylen); |
| 694 | memcpy(&ctx->key[keys.authkeylen], keys.enckey, keys.enckeylen); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 695 | |
Mathias Krause | c306a98 | 2013-10-15 13:49:34 +0200 | [diff] [blame] | 696 | ctx->keylen = keys.authkeylen + keys.enckeylen; |
| 697 | ctx->enckeylen = keys.enckeylen; |
| 698 | ctx->authkeylen = keys.authkeylen; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 699 | |
| 700 | return 0; |
| 701 | |
| 702 | badkey: |
| 703 | crypto_aead_set_flags(authenc, CRYPTO_TFM_RES_BAD_KEY_LEN); |
| 704 | return -EINVAL; |
| 705 | } |
| 706 | |
| 707 | /* |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 708 | * talitos_edesc - s/w-extended descriptor |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 709 | * @assoc_nents: number of segments in associated data scatterlist |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 710 | * @src_nents: number of segments in input scatterlist |
| 711 | * @dst_nents: number of segments in output scatterlist |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 712 | * @assoc_chained: whether assoc is chained or not |
Horia Geanta | 2a1cfe4 | 2012-08-02 17:16:39 +0300 | [diff] [blame] | 713 | * @src_chained: whether src is chained or not |
| 714 | * @dst_chained: whether dst is chained or not |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 715 | * @iv_dma: dma address of iv for checking continuity and link table |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 716 | * @dma_len: length of dma mapped link_tbl space |
| 717 | * @dma_link_tbl: bus physical address of link_tbl |
| 718 | * @desc: h/w descriptor |
| 719 | * @link_tbl: input and output h/w link tables (if {src,dst}_nents > 1) |
| 720 | * |
| 721 | * if decrypting (with authcheck), or either one of src_nents or dst_nents |
| 722 | * is greater than 1, an integrity check value is concatenated to the end |
| 723 | * of link_tbl data |
| 724 | */ |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 725 | struct talitos_edesc { |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 726 | int assoc_nents; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 727 | int src_nents; |
| 728 | int dst_nents; |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 729 | bool assoc_chained; |
Horia Geanta | 2a1cfe4 | 2012-08-02 17:16:39 +0300 | [diff] [blame] | 730 | bool src_chained; |
| 731 | bool dst_chained; |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 732 | dma_addr_t iv_dma; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 733 | int dma_len; |
| 734 | dma_addr_t dma_link_tbl; |
| 735 | struct talitos_desc desc; |
| 736 | struct talitos_ptr link_tbl[0]; |
| 737 | }; |
| 738 | |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 739 | static int talitos_map_sg(struct device *dev, struct scatterlist *sg, |
| 740 | unsigned int nents, enum dma_data_direction dir, |
Horia Geanta | 2a1cfe4 | 2012-08-02 17:16:39 +0300 | [diff] [blame] | 741 | bool chained) |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 742 | { |
| 743 | if (unlikely(chained)) |
| 744 | while (sg) { |
| 745 | dma_map_sg(dev, sg, 1, dir); |
| 746 | sg = scatterwalk_sg_next(sg); |
| 747 | } |
| 748 | else |
| 749 | dma_map_sg(dev, sg, nents, dir); |
| 750 | return nents; |
| 751 | } |
| 752 | |
| 753 | static void talitos_unmap_sg_chain(struct device *dev, struct scatterlist *sg, |
| 754 | enum dma_data_direction dir) |
| 755 | { |
| 756 | while (sg) { |
| 757 | dma_unmap_sg(dev, sg, 1, dir); |
| 758 | sg = scatterwalk_sg_next(sg); |
| 759 | } |
| 760 | } |
| 761 | |
| 762 | static void talitos_sg_unmap(struct device *dev, |
| 763 | struct talitos_edesc *edesc, |
| 764 | struct scatterlist *src, |
| 765 | struct scatterlist *dst) |
| 766 | { |
| 767 | unsigned int src_nents = edesc->src_nents ? : 1; |
| 768 | unsigned int dst_nents = edesc->dst_nents ? : 1; |
| 769 | |
| 770 | if (src != dst) { |
Horia Geanta | 2a1cfe4 | 2012-08-02 17:16:39 +0300 | [diff] [blame] | 771 | if (edesc->src_chained) |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 772 | talitos_unmap_sg_chain(dev, src, DMA_TO_DEVICE); |
| 773 | else |
| 774 | dma_unmap_sg(dev, src, src_nents, DMA_TO_DEVICE); |
| 775 | |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 776 | if (dst) { |
Horia Geanta | 2a1cfe4 | 2012-08-02 17:16:39 +0300 | [diff] [blame] | 777 | if (edesc->dst_chained) |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 778 | talitos_unmap_sg_chain(dev, dst, |
| 779 | DMA_FROM_DEVICE); |
| 780 | else |
| 781 | dma_unmap_sg(dev, dst, dst_nents, |
| 782 | DMA_FROM_DEVICE); |
| 783 | } |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 784 | } else |
Horia Geanta | 2a1cfe4 | 2012-08-02 17:16:39 +0300 | [diff] [blame] | 785 | if (edesc->src_chained) |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 786 | talitos_unmap_sg_chain(dev, src, DMA_BIDIRECTIONAL); |
| 787 | else |
| 788 | dma_unmap_sg(dev, src, src_nents, DMA_BIDIRECTIONAL); |
| 789 | } |
| 790 | |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 791 | static void ipsec_esp_unmap(struct device *dev, |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 792 | struct talitos_edesc *edesc, |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 793 | struct aead_request *areq) |
| 794 | { |
| 795 | unmap_single_talitos_ptr(dev, &edesc->desc.ptr[6], DMA_FROM_DEVICE); |
| 796 | unmap_single_talitos_ptr(dev, &edesc->desc.ptr[3], DMA_TO_DEVICE); |
| 797 | unmap_single_talitos_ptr(dev, &edesc->desc.ptr[2], DMA_TO_DEVICE); |
| 798 | unmap_single_talitos_ptr(dev, &edesc->desc.ptr[0], DMA_TO_DEVICE); |
| 799 | |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 800 | if (edesc->assoc_chained) |
| 801 | talitos_unmap_sg_chain(dev, areq->assoc, DMA_TO_DEVICE); |
Horia Geanta | 935e99a | 2013-11-19 14:57:49 +0200 | [diff] [blame] | 802 | else if (areq->assoclen) |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 803 | /* assoc_nents counts also for IV in non-contiguous cases */ |
| 804 | dma_unmap_sg(dev, areq->assoc, |
| 805 | edesc->assoc_nents ? edesc->assoc_nents - 1 : 1, |
| 806 | DMA_TO_DEVICE); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 807 | |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 808 | talitos_sg_unmap(dev, edesc, areq->src, areq->dst); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 809 | |
| 810 | if (edesc->dma_len) |
| 811 | dma_unmap_single(dev, edesc->dma_link_tbl, edesc->dma_len, |
| 812 | DMA_BIDIRECTIONAL); |
| 813 | } |
| 814 | |
| 815 | /* |
| 816 | * ipsec_esp descriptor callbacks |
| 817 | */ |
| 818 | static void ipsec_esp_encrypt_done(struct device *dev, |
| 819 | struct talitos_desc *desc, void *context, |
| 820 | int err) |
| 821 | { |
| 822 | struct aead_request *areq = context; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 823 | struct crypto_aead *authenc = crypto_aead_reqtfm(areq); |
| 824 | struct talitos_ctx *ctx = crypto_aead_ctx(authenc); |
Kim Phillips | 19bbbc6 | 2009-03-29 15:53:59 +0800 | [diff] [blame] | 825 | struct talitos_edesc *edesc; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 826 | struct scatterlist *sg; |
| 827 | void *icvdata; |
| 828 | |
Kim Phillips | 19bbbc6 | 2009-03-29 15:53:59 +0800 | [diff] [blame] | 829 | edesc = container_of(desc, struct talitos_edesc, desc); |
| 830 | |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 831 | ipsec_esp_unmap(dev, edesc, areq); |
| 832 | |
| 833 | /* copy the generated ICV to dst */ |
Horia Geanta | 6054250 | 2012-08-02 17:16:37 +0300 | [diff] [blame] | 834 | if (edesc->dst_nents) { |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 835 | icvdata = &edesc->link_tbl[edesc->src_nents + |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 836 | edesc->dst_nents + 2 + |
| 837 | edesc->assoc_nents]; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 838 | sg = sg_last(areq->dst, edesc->dst_nents); |
| 839 | memcpy((char *)sg_virt(sg) + sg->length - ctx->authsize, |
| 840 | icvdata, ctx->authsize); |
| 841 | } |
| 842 | |
| 843 | kfree(edesc); |
| 844 | |
| 845 | aead_request_complete(areq, err); |
| 846 | } |
| 847 | |
Kim Phillips | fe5720e | 2008-10-12 20:33:14 +0800 | [diff] [blame] | 848 | static void ipsec_esp_decrypt_swauth_done(struct device *dev, |
Kim Phillips | e938e46 | 2009-03-29 15:53:23 +0800 | [diff] [blame] | 849 | struct talitos_desc *desc, |
| 850 | void *context, int err) |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 851 | { |
| 852 | struct aead_request *req = context; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 853 | struct crypto_aead *authenc = crypto_aead_reqtfm(req); |
| 854 | struct talitos_ctx *ctx = crypto_aead_ctx(authenc); |
Kim Phillips | 19bbbc6 | 2009-03-29 15:53:59 +0800 | [diff] [blame] | 855 | struct talitos_edesc *edesc; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 856 | struct scatterlist *sg; |
| 857 | void *icvdata; |
| 858 | |
Kim Phillips | 19bbbc6 | 2009-03-29 15:53:59 +0800 | [diff] [blame] | 859 | edesc = container_of(desc, struct talitos_edesc, desc); |
| 860 | |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 861 | ipsec_esp_unmap(dev, edesc, req); |
| 862 | |
| 863 | if (!err) { |
| 864 | /* auth check */ |
| 865 | if (edesc->dma_len) |
| 866 | icvdata = &edesc->link_tbl[edesc->src_nents + |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 867 | edesc->dst_nents + 2 + |
| 868 | edesc->assoc_nents]; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 869 | else |
| 870 | icvdata = &edesc->link_tbl[0]; |
| 871 | |
| 872 | sg = sg_last(req->dst, edesc->dst_nents ? : 1); |
| 873 | err = memcmp(icvdata, (char *)sg_virt(sg) + sg->length - |
| 874 | ctx->authsize, ctx->authsize) ? -EBADMSG : 0; |
| 875 | } |
| 876 | |
| 877 | kfree(edesc); |
| 878 | |
| 879 | aead_request_complete(req, err); |
| 880 | } |
| 881 | |
Kim Phillips | fe5720e | 2008-10-12 20:33:14 +0800 | [diff] [blame] | 882 | static void ipsec_esp_decrypt_hwauth_done(struct device *dev, |
Kim Phillips | e938e46 | 2009-03-29 15:53:23 +0800 | [diff] [blame] | 883 | struct talitos_desc *desc, |
| 884 | void *context, int err) |
Kim Phillips | fe5720e | 2008-10-12 20:33:14 +0800 | [diff] [blame] | 885 | { |
| 886 | struct aead_request *req = context; |
Kim Phillips | 19bbbc6 | 2009-03-29 15:53:59 +0800 | [diff] [blame] | 887 | struct talitos_edesc *edesc; |
| 888 | |
| 889 | edesc = container_of(desc, struct talitos_edesc, desc); |
Kim Phillips | fe5720e | 2008-10-12 20:33:14 +0800 | [diff] [blame] | 890 | |
| 891 | ipsec_esp_unmap(dev, edesc, req); |
| 892 | |
| 893 | /* check ICV auth status */ |
Kim Phillips | e938e46 | 2009-03-29 15:53:23 +0800 | [diff] [blame] | 894 | if (!err && ((desc->hdr_lo & DESC_HDR_LO_ICCR1_MASK) != |
| 895 | DESC_HDR_LO_ICCR1_PASS)) |
| 896 | err = -EBADMSG; |
Kim Phillips | fe5720e | 2008-10-12 20:33:14 +0800 | [diff] [blame] | 897 | |
| 898 | kfree(edesc); |
| 899 | |
| 900 | aead_request_complete(req, err); |
| 901 | } |
| 902 | |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 903 | /* |
| 904 | * convert scatterlist to SEC h/w link table format |
| 905 | * stop at cryptlen bytes |
| 906 | */ |
Lee Nipper | 70bcaca | 2008-07-03 19:08:46 +0800 | [diff] [blame] | 907 | static int sg_to_link_tbl(struct scatterlist *sg, int sg_count, |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 908 | int cryptlen, struct talitos_ptr *link_tbl_ptr) |
| 909 | { |
Lee Nipper | 70bcaca | 2008-07-03 19:08:46 +0800 | [diff] [blame] | 910 | int n_sg = sg_count; |
| 911 | |
| 912 | while (n_sg--) { |
Kim Phillips | 81eb024 | 2009-08-13 11:51:51 +1000 | [diff] [blame] | 913 | to_talitos_ptr(link_tbl_ptr, sg_dma_address(sg)); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 914 | link_tbl_ptr->len = cpu_to_be16(sg_dma_len(sg)); |
| 915 | link_tbl_ptr->j_extent = 0; |
| 916 | link_tbl_ptr++; |
| 917 | cryptlen -= sg_dma_len(sg); |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 918 | sg = scatterwalk_sg_next(sg); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 919 | } |
| 920 | |
Lee Nipper | 70bcaca | 2008-07-03 19:08:46 +0800 | [diff] [blame] | 921 | /* adjust (decrease) last one (or two) entry's len to cryptlen */ |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 922 | link_tbl_ptr--; |
Kim Phillips | c0e741d | 2008-07-17 20:20:59 +0800 | [diff] [blame] | 923 | while (be16_to_cpu(link_tbl_ptr->len) <= (-cryptlen)) { |
Lee Nipper | 70bcaca | 2008-07-03 19:08:46 +0800 | [diff] [blame] | 924 | /* Empty this entry, and move to previous one */ |
| 925 | cryptlen += be16_to_cpu(link_tbl_ptr->len); |
| 926 | link_tbl_ptr->len = 0; |
| 927 | sg_count--; |
| 928 | link_tbl_ptr--; |
| 929 | } |
Wei Yongjun | 7291a93 | 2012-09-28 12:52:25 +0800 | [diff] [blame] | 930 | be16_add_cpu(&link_tbl_ptr->len, cryptlen); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 931 | |
| 932 | /* tag end of link table */ |
| 933 | link_tbl_ptr->j_extent = DESC_PTR_LNKTBL_RETURN; |
Lee Nipper | 70bcaca | 2008-07-03 19:08:46 +0800 | [diff] [blame] | 934 | |
| 935 | return sg_count; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 936 | } |
| 937 | |
| 938 | /* |
| 939 | * fill in and submit ipsec_esp descriptor |
| 940 | */ |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 941 | static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq, |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 942 | u64 seq, void (*callback) (struct device *dev, |
| 943 | struct talitos_desc *desc, |
| 944 | void *context, int error)) |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 945 | { |
| 946 | struct crypto_aead *aead = crypto_aead_reqtfm(areq); |
| 947 | struct talitos_ctx *ctx = crypto_aead_ctx(aead); |
| 948 | struct device *dev = ctx->dev; |
| 949 | struct talitos_desc *desc = &edesc->desc; |
| 950 | unsigned int cryptlen = areq->cryptlen; |
| 951 | unsigned int authsize = ctx->authsize; |
Kim Phillips | e41256f | 2009-08-13 11:49:06 +1000 | [diff] [blame] | 952 | unsigned int ivsize = crypto_aead_ivsize(aead); |
Kim Phillips | fa86a26 | 2008-07-17 20:20:06 +0800 | [diff] [blame] | 953 | int sg_count, ret; |
Kim Phillips | fe5720e | 2008-10-12 20:33:14 +0800 | [diff] [blame] | 954 | int sg_link_tbl_len; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 955 | |
| 956 | /* hmac key */ |
| 957 | map_single_talitos_ptr(dev, &desc->ptr[0], ctx->authkeylen, &ctx->key, |
| 958 | 0, DMA_TO_DEVICE); |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 959 | |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 960 | /* hmac data */ |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 961 | desc->ptr[1].len = cpu_to_be16(areq->assoclen + ivsize); |
| 962 | if (edesc->assoc_nents) { |
| 963 | int tbl_off = edesc->src_nents + edesc->dst_nents + 2; |
| 964 | struct talitos_ptr *tbl_ptr = &edesc->link_tbl[tbl_off]; |
| 965 | |
| 966 | to_talitos_ptr(&desc->ptr[1], edesc->dma_link_tbl + tbl_off * |
| 967 | sizeof(struct talitos_ptr)); |
| 968 | desc->ptr[1].j_extent = DESC_PTR_LNKTBL_JUMP; |
| 969 | |
| 970 | /* assoc_nents - 1 entries for assoc, 1 for IV */ |
| 971 | sg_count = sg_to_link_tbl(areq->assoc, edesc->assoc_nents - 1, |
| 972 | areq->assoclen, tbl_ptr); |
| 973 | |
| 974 | /* add IV to link table */ |
| 975 | tbl_ptr += sg_count - 1; |
| 976 | tbl_ptr->j_extent = 0; |
| 977 | tbl_ptr++; |
| 978 | to_talitos_ptr(tbl_ptr, edesc->iv_dma); |
| 979 | tbl_ptr->len = cpu_to_be16(ivsize); |
| 980 | tbl_ptr->j_extent = DESC_PTR_LNKTBL_RETURN; |
| 981 | |
| 982 | dma_sync_single_for_device(dev, edesc->dma_link_tbl, |
| 983 | edesc->dma_len, DMA_BIDIRECTIONAL); |
| 984 | } else { |
Horia Geanta | 935e99a | 2013-11-19 14:57:49 +0200 | [diff] [blame] | 985 | if (areq->assoclen) |
| 986 | to_talitos_ptr(&desc->ptr[1], |
| 987 | sg_dma_address(areq->assoc)); |
| 988 | else |
| 989 | to_talitos_ptr(&desc->ptr[1], edesc->iv_dma); |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 990 | desc->ptr[1].j_extent = 0; |
| 991 | } |
| 992 | |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 993 | /* cipher iv */ |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 994 | to_talitos_ptr(&desc->ptr[2], edesc->iv_dma); |
| 995 | desc->ptr[2].len = cpu_to_be16(ivsize); |
| 996 | desc->ptr[2].j_extent = 0; |
| 997 | /* Sync needed for the aead_givencrypt case */ |
| 998 | dma_sync_single_for_device(dev, edesc->iv_dma, ivsize, DMA_TO_DEVICE); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 999 | |
| 1000 | /* cipher key */ |
| 1001 | map_single_talitos_ptr(dev, &desc->ptr[3], ctx->enckeylen, |
| 1002 | (char *)&ctx->key + ctx->authkeylen, 0, |
| 1003 | DMA_TO_DEVICE); |
| 1004 | |
| 1005 | /* |
| 1006 | * cipher in |
| 1007 | * map and adjust cipher len to aead request cryptlen. |
| 1008 | * extent is bytes of HMAC postpended to ciphertext, |
| 1009 | * typically 12 for ipsec |
| 1010 | */ |
| 1011 | desc->ptr[4].len = cpu_to_be16(cryptlen); |
| 1012 | desc->ptr[4].j_extent = authsize; |
| 1013 | |
Kim Phillips | e938e46 | 2009-03-29 15:53:23 +0800 | [diff] [blame] | 1014 | sg_count = talitos_map_sg(dev, areq->src, edesc->src_nents ? : 1, |
| 1015 | (areq->src == areq->dst) ? DMA_BIDIRECTIONAL |
| 1016 | : DMA_TO_DEVICE, |
Horia Geanta | 2a1cfe4 | 2012-08-02 17:16:39 +0300 | [diff] [blame] | 1017 | edesc->src_chained); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1018 | |
| 1019 | if (sg_count == 1) { |
Kim Phillips | 81eb024 | 2009-08-13 11:51:51 +1000 | [diff] [blame] | 1020 | to_talitos_ptr(&desc->ptr[4], sg_dma_address(areq->src)); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1021 | } else { |
Kim Phillips | fe5720e | 2008-10-12 20:33:14 +0800 | [diff] [blame] | 1022 | sg_link_tbl_len = cryptlen; |
| 1023 | |
Kim Phillips | 962a9c9 | 2009-03-29 15:54:30 +0800 | [diff] [blame] | 1024 | if (edesc->desc.hdr & DESC_HDR_MODE1_MDEU_CICV) |
Kim Phillips | fe5720e | 2008-10-12 20:33:14 +0800 | [diff] [blame] | 1025 | sg_link_tbl_len = cryptlen + authsize; |
Kim Phillips | e938e46 | 2009-03-29 15:53:23 +0800 | [diff] [blame] | 1026 | |
Kim Phillips | fe5720e | 2008-10-12 20:33:14 +0800 | [diff] [blame] | 1027 | sg_count = sg_to_link_tbl(areq->src, sg_count, sg_link_tbl_len, |
Lee Nipper | 70bcaca | 2008-07-03 19:08:46 +0800 | [diff] [blame] | 1028 | &edesc->link_tbl[0]); |
| 1029 | if (sg_count > 1) { |
| 1030 | desc->ptr[4].j_extent |= DESC_PTR_LNKTBL_JUMP; |
Kim Phillips | 81eb024 | 2009-08-13 11:51:51 +1000 | [diff] [blame] | 1031 | to_talitos_ptr(&desc->ptr[4], edesc->dma_link_tbl); |
Kim Phillips | e938e46 | 2009-03-29 15:53:23 +0800 | [diff] [blame] | 1032 | dma_sync_single_for_device(dev, edesc->dma_link_tbl, |
| 1033 | edesc->dma_len, |
| 1034 | DMA_BIDIRECTIONAL); |
Lee Nipper | 70bcaca | 2008-07-03 19:08:46 +0800 | [diff] [blame] | 1035 | } else { |
| 1036 | /* Only one segment now, so no link tbl needed */ |
Kim Phillips | 81eb024 | 2009-08-13 11:51:51 +1000 | [diff] [blame] | 1037 | to_talitos_ptr(&desc->ptr[4], |
| 1038 | sg_dma_address(areq->src)); |
Lee Nipper | 70bcaca | 2008-07-03 19:08:46 +0800 | [diff] [blame] | 1039 | } |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1040 | } |
| 1041 | |
| 1042 | /* cipher out */ |
| 1043 | desc->ptr[5].len = cpu_to_be16(cryptlen); |
| 1044 | desc->ptr[5].j_extent = authsize; |
| 1045 | |
Kim Phillips | e938e46 | 2009-03-29 15:53:23 +0800 | [diff] [blame] | 1046 | if (areq->src != areq->dst) |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1047 | sg_count = talitos_map_sg(dev, areq->dst, |
| 1048 | edesc->dst_nents ? : 1, |
Horia Geanta | 2a1cfe4 | 2012-08-02 17:16:39 +0300 | [diff] [blame] | 1049 | DMA_FROM_DEVICE, edesc->dst_chained); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1050 | |
| 1051 | if (sg_count == 1) { |
Kim Phillips | 81eb024 | 2009-08-13 11:51:51 +1000 | [diff] [blame] | 1052 | to_talitos_ptr(&desc->ptr[5], sg_dma_address(areq->dst)); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1053 | } else { |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1054 | int tbl_off = edesc->src_nents + 1; |
| 1055 | struct talitos_ptr *tbl_ptr = &edesc->link_tbl[tbl_off]; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1056 | |
Kim Phillips | 81eb024 | 2009-08-13 11:51:51 +1000 | [diff] [blame] | 1057 | to_talitos_ptr(&desc->ptr[5], edesc->dma_link_tbl + |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1058 | tbl_off * sizeof(struct talitos_ptr)); |
Kim Phillips | fe5720e | 2008-10-12 20:33:14 +0800 | [diff] [blame] | 1059 | sg_count = sg_to_link_tbl(areq->dst, sg_count, cryptlen, |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1060 | tbl_ptr); |
Kim Phillips | fe5720e | 2008-10-12 20:33:14 +0800 | [diff] [blame] | 1061 | |
Lee Nipper | f3c85bc | 2008-07-30 16:26:57 +0800 | [diff] [blame] | 1062 | /* Add an entry to the link table for ICV data */ |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1063 | tbl_ptr += sg_count - 1; |
| 1064 | tbl_ptr->j_extent = 0; |
| 1065 | tbl_ptr++; |
| 1066 | tbl_ptr->j_extent = DESC_PTR_LNKTBL_RETURN; |
| 1067 | tbl_ptr->len = cpu_to_be16(authsize); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1068 | |
| 1069 | /* icv data follows link tables */ |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1070 | to_talitos_ptr(tbl_ptr, edesc->dma_link_tbl + |
| 1071 | (tbl_off + edesc->dst_nents + 1 + |
| 1072 | edesc->assoc_nents) * |
Kim Phillips | 81eb024 | 2009-08-13 11:51:51 +1000 | [diff] [blame] | 1073 | sizeof(struct talitos_ptr)); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1074 | desc->ptr[5].j_extent |= DESC_PTR_LNKTBL_JUMP; |
| 1075 | dma_sync_single_for_device(ctx->dev, edesc->dma_link_tbl, |
| 1076 | edesc->dma_len, DMA_BIDIRECTIONAL); |
| 1077 | } |
| 1078 | |
| 1079 | /* iv out */ |
| 1080 | map_single_talitos_ptr(dev, &desc->ptr[6], ivsize, ctx->iv, 0, |
| 1081 | DMA_FROM_DEVICE); |
| 1082 | |
Kim Phillips | 5228f0f | 2011-07-15 11:21:38 +0800 | [diff] [blame] | 1083 | ret = talitos_submit(dev, ctx->ch, desc, callback, areq); |
Kim Phillips | fa86a26 | 2008-07-17 20:20:06 +0800 | [diff] [blame] | 1084 | if (ret != -EINPROGRESS) { |
| 1085 | ipsec_esp_unmap(dev, edesc, areq); |
| 1086 | kfree(edesc); |
| 1087 | } |
| 1088 | return ret; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1089 | } |
| 1090 | |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1091 | /* |
| 1092 | * derive number of elements in scatterlist |
| 1093 | */ |
Horia Geanta | 2a1cfe4 | 2012-08-02 17:16:39 +0300 | [diff] [blame] | 1094 | static int sg_count(struct scatterlist *sg_list, int nbytes, bool *chained) |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1095 | { |
| 1096 | struct scatterlist *sg = sg_list; |
| 1097 | int sg_nents = 0; |
| 1098 | |
Horia Geanta | 2a1cfe4 | 2012-08-02 17:16:39 +0300 | [diff] [blame] | 1099 | *chained = false; |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1100 | while (nbytes > 0) { |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1101 | sg_nents++; |
| 1102 | nbytes -= sg->length; |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1103 | if (!sg_is_last(sg) && (sg + 1)->length == 0) |
Horia Geanta | 2a1cfe4 | 2012-08-02 17:16:39 +0300 | [diff] [blame] | 1104 | *chained = true; |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1105 | sg = scatterwalk_sg_next(sg); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1106 | } |
| 1107 | |
| 1108 | return sg_nents; |
| 1109 | } |
| 1110 | |
| 1111 | /* |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 1112 | * allocate and map the extended descriptor |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1113 | */ |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1114 | static struct talitos_edesc *talitos_edesc_alloc(struct device *dev, |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1115 | struct scatterlist *assoc, |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1116 | struct scatterlist *src, |
| 1117 | struct scatterlist *dst, |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1118 | u8 *iv, |
| 1119 | unsigned int assoclen, |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1120 | unsigned int cryptlen, |
| 1121 | unsigned int authsize, |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1122 | unsigned int ivsize, |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1123 | int icv_stashing, |
Horia Geanta | 62293a3 | 2013-11-28 15:11:17 +0200 | [diff] [blame] | 1124 | u32 cryptoflags, |
| 1125 | bool encrypt) |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1126 | { |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 1127 | struct talitos_edesc *edesc; |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1128 | int assoc_nents = 0, src_nents, dst_nents, alloc_len, dma_len; |
| 1129 | bool assoc_chained = false, src_chained = false, dst_chained = false; |
| 1130 | dma_addr_t iv_dma = 0; |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1131 | gfp_t flags = cryptoflags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL : |
Kim Phillips | 586725f | 2008-07-17 20:19:18 +0800 | [diff] [blame] | 1132 | GFP_ATOMIC; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1133 | |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1134 | if (cryptlen + authsize > TALITOS_MAX_DATA_LEN) { |
| 1135 | dev_err(dev, "length exceeds h/w max limit\n"); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1136 | return ERR_PTR(-EINVAL); |
| 1137 | } |
| 1138 | |
Horia Geanta | 935e99a | 2013-11-19 14:57:49 +0200 | [diff] [blame] | 1139 | if (ivsize) |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1140 | iv_dma = dma_map_single(dev, iv, ivsize, DMA_TO_DEVICE); |
| 1141 | |
Horia Geanta | 935e99a | 2013-11-19 14:57:49 +0200 | [diff] [blame] | 1142 | if (assoclen) { |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1143 | /* |
| 1144 | * Currently it is assumed that iv is provided whenever assoc |
| 1145 | * is. |
| 1146 | */ |
| 1147 | BUG_ON(!iv); |
| 1148 | |
| 1149 | assoc_nents = sg_count(assoc, assoclen, &assoc_chained); |
| 1150 | talitos_map_sg(dev, assoc, assoc_nents, DMA_TO_DEVICE, |
| 1151 | assoc_chained); |
| 1152 | assoc_nents = (assoc_nents == 1) ? 0 : assoc_nents; |
| 1153 | |
| 1154 | if (assoc_nents || sg_dma_address(assoc) + assoclen != iv_dma) |
| 1155 | assoc_nents = assoc_nents ? assoc_nents + 1 : 2; |
| 1156 | } |
| 1157 | |
Horia Geanta | 62293a3 | 2013-11-28 15:11:17 +0200 | [diff] [blame] | 1158 | if (!dst || dst == src) { |
| 1159 | src_nents = sg_count(src, cryptlen + authsize, &src_chained); |
| 1160 | src_nents = (src_nents == 1) ? 0 : src_nents; |
| 1161 | dst_nents = dst ? src_nents : 0; |
| 1162 | } else { /* dst && dst != src*/ |
| 1163 | src_nents = sg_count(src, cryptlen + (encrypt ? 0 : authsize), |
| 1164 | &src_chained); |
| 1165 | src_nents = (src_nents == 1) ? 0 : src_nents; |
| 1166 | dst_nents = sg_count(dst, cryptlen + (encrypt ? authsize : 0), |
| 1167 | &dst_chained); |
| 1168 | dst_nents = (dst_nents == 1) ? 0 : dst_nents; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1169 | } |
| 1170 | |
| 1171 | /* |
| 1172 | * allocate space for base edesc plus the link tables, |
Lee Nipper | f3c85bc | 2008-07-30 16:26:57 +0800 | [diff] [blame] | 1173 | * allowing for two separate entries for ICV and generated ICV (+ 2), |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1174 | * and the ICV data itself |
| 1175 | */ |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 1176 | alloc_len = sizeof(struct talitos_edesc); |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1177 | if (assoc_nents || src_nents || dst_nents) { |
| 1178 | dma_len = (src_nents + dst_nents + 2 + assoc_nents) * |
| 1179 | sizeof(struct talitos_ptr) + authsize; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1180 | alloc_len += dma_len; |
| 1181 | } else { |
| 1182 | dma_len = 0; |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1183 | alloc_len += icv_stashing ? authsize : 0; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1184 | } |
| 1185 | |
Kim Phillips | 586725f | 2008-07-17 20:19:18 +0800 | [diff] [blame] | 1186 | edesc = kmalloc(alloc_len, GFP_DMA | flags); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1187 | if (!edesc) { |
Horia Geanta | 935e99a | 2013-11-19 14:57:49 +0200 | [diff] [blame] | 1188 | if (assoc_chained) |
| 1189 | talitos_unmap_sg_chain(dev, assoc, DMA_TO_DEVICE); |
| 1190 | else if (assoclen) |
| 1191 | dma_unmap_sg(dev, assoc, |
| 1192 | assoc_nents ? assoc_nents - 1 : 1, |
| 1193 | DMA_TO_DEVICE); |
| 1194 | |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1195 | if (iv_dma) |
| 1196 | dma_unmap_single(dev, iv_dma, ivsize, DMA_TO_DEVICE); |
Horia Geanta | 935e99a | 2013-11-19 14:57:49 +0200 | [diff] [blame] | 1197 | |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1198 | dev_err(dev, "could not allocate edescriptor\n"); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1199 | return ERR_PTR(-ENOMEM); |
| 1200 | } |
| 1201 | |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1202 | edesc->assoc_nents = assoc_nents; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1203 | edesc->src_nents = src_nents; |
| 1204 | edesc->dst_nents = dst_nents; |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1205 | edesc->assoc_chained = assoc_chained; |
Horia Geanta | 2a1cfe4 | 2012-08-02 17:16:39 +0300 | [diff] [blame] | 1206 | edesc->src_chained = src_chained; |
| 1207 | edesc->dst_chained = dst_chained; |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1208 | edesc->iv_dma = iv_dma; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1209 | edesc->dma_len = dma_len; |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 1210 | if (dma_len) |
| 1211 | edesc->dma_link_tbl = dma_map_single(dev, &edesc->link_tbl[0], |
| 1212 | edesc->dma_len, |
| 1213 | DMA_BIDIRECTIONAL); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1214 | |
| 1215 | return edesc; |
| 1216 | } |
| 1217 | |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1218 | static struct talitos_edesc *aead_edesc_alloc(struct aead_request *areq, u8 *iv, |
Horia Geanta | 62293a3 | 2013-11-28 15:11:17 +0200 | [diff] [blame] | 1219 | int icv_stashing, bool encrypt) |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1220 | { |
| 1221 | struct crypto_aead *authenc = crypto_aead_reqtfm(areq); |
| 1222 | struct talitos_ctx *ctx = crypto_aead_ctx(authenc); |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1223 | unsigned int ivsize = crypto_aead_ivsize(authenc); |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1224 | |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1225 | return talitos_edesc_alloc(ctx->dev, areq->assoc, areq->src, areq->dst, |
| 1226 | iv, areq->assoclen, areq->cryptlen, |
| 1227 | ctx->authsize, ivsize, icv_stashing, |
Horia Geanta | 62293a3 | 2013-11-28 15:11:17 +0200 | [diff] [blame] | 1228 | areq->base.flags, encrypt); |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1229 | } |
| 1230 | |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 1231 | static int aead_encrypt(struct aead_request *req) |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1232 | { |
| 1233 | struct crypto_aead *authenc = crypto_aead_reqtfm(req); |
| 1234 | struct talitos_ctx *ctx = crypto_aead_ctx(authenc); |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 1235 | struct talitos_edesc *edesc; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1236 | |
| 1237 | /* allocate extended descriptor */ |
Horia Geanta | 62293a3 | 2013-11-28 15:11:17 +0200 | [diff] [blame] | 1238 | edesc = aead_edesc_alloc(req, req->iv, 0, true); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1239 | if (IS_ERR(edesc)) |
| 1240 | return PTR_ERR(edesc); |
| 1241 | |
| 1242 | /* set encrypt */ |
Lee Nipper | 70bcaca | 2008-07-03 19:08:46 +0800 | [diff] [blame] | 1243 | edesc->desc.hdr = ctx->desc_hdr_template | DESC_HDR_MODE0_ENCRYPT; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1244 | |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1245 | return ipsec_esp(edesc, req, 0, ipsec_esp_encrypt_done); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1246 | } |
| 1247 | |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 1248 | static int aead_decrypt(struct aead_request *req) |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1249 | { |
| 1250 | struct crypto_aead *authenc = crypto_aead_reqtfm(req); |
| 1251 | struct talitos_ctx *ctx = crypto_aead_ctx(authenc); |
| 1252 | unsigned int authsize = ctx->authsize; |
Kim Phillips | fe5720e | 2008-10-12 20:33:14 +0800 | [diff] [blame] | 1253 | struct talitos_private *priv = dev_get_drvdata(ctx->dev); |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 1254 | struct talitos_edesc *edesc; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1255 | struct scatterlist *sg; |
| 1256 | void *icvdata; |
| 1257 | |
| 1258 | req->cryptlen -= authsize; |
| 1259 | |
| 1260 | /* allocate extended descriptor */ |
Horia Geanta | 62293a3 | 2013-11-28 15:11:17 +0200 | [diff] [blame] | 1261 | edesc = aead_edesc_alloc(req, req->iv, 1, false); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1262 | if (IS_ERR(edesc)) |
| 1263 | return PTR_ERR(edesc); |
| 1264 | |
Kim Phillips | fe5720e | 2008-10-12 20:33:14 +0800 | [diff] [blame] | 1265 | if ((priv->features & TALITOS_FTR_HW_AUTH_CHECK) && |
Kim Phillips | e938e46 | 2009-03-29 15:53:23 +0800 | [diff] [blame] | 1266 | ((!edesc->src_nents && !edesc->dst_nents) || |
| 1267 | priv->features & TALITOS_FTR_SRC_LINK_TBL_LEN_INCLUDES_EXTENT)) { |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1268 | |
Kim Phillips | fe5720e | 2008-10-12 20:33:14 +0800 | [diff] [blame] | 1269 | /* decrypt and check the ICV */ |
Kim Phillips | e938e46 | 2009-03-29 15:53:23 +0800 | [diff] [blame] | 1270 | edesc->desc.hdr = ctx->desc_hdr_template | |
| 1271 | DESC_HDR_DIR_INBOUND | |
Kim Phillips | fe5720e | 2008-10-12 20:33:14 +0800 | [diff] [blame] | 1272 | DESC_HDR_MODE1_MDEU_CICV; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1273 | |
Kim Phillips | fe5720e | 2008-10-12 20:33:14 +0800 | [diff] [blame] | 1274 | /* reset integrity check result bits */ |
| 1275 | edesc->desc.hdr_lo = 0; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1276 | |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1277 | return ipsec_esp(edesc, req, 0, ipsec_esp_decrypt_hwauth_done); |
Kim Phillips | fe5720e | 2008-10-12 20:33:14 +0800 | [diff] [blame] | 1278 | } |
Kim Phillips | e938e46 | 2009-03-29 15:53:23 +0800 | [diff] [blame] | 1279 | |
| 1280 | /* Have to check the ICV with software */ |
| 1281 | edesc->desc.hdr = ctx->desc_hdr_template | DESC_HDR_DIR_INBOUND; |
| 1282 | |
| 1283 | /* stash incoming ICV for later cmp with ICV generated by the h/w */ |
| 1284 | if (edesc->dma_len) |
| 1285 | icvdata = &edesc->link_tbl[edesc->src_nents + |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1286 | edesc->dst_nents + 2 + |
| 1287 | edesc->assoc_nents]; |
Kim Phillips | e938e46 | 2009-03-29 15:53:23 +0800 | [diff] [blame] | 1288 | else |
| 1289 | icvdata = &edesc->link_tbl[0]; |
| 1290 | |
| 1291 | sg = sg_last(req->src, edesc->src_nents ? : 1); |
| 1292 | |
| 1293 | memcpy(icvdata, (char *)sg_virt(sg) + sg->length - ctx->authsize, |
| 1294 | ctx->authsize); |
| 1295 | |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1296 | return ipsec_esp(edesc, req, 0, ipsec_esp_decrypt_swauth_done); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1297 | } |
| 1298 | |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 1299 | static int aead_givencrypt(struct aead_givcrypt_request *req) |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1300 | { |
| 1301 | struct aead_request *areq = &req->areq; |
| 1302 | struct crypto_aead *authenc = crypto_aead_reqtfm(areq); |
| 1303 | struct talitos_ctx *ctx = crypto_aead_ctx(authenc); |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 1304 | struct talitos_edesc *edesc; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1305 | |
| 1306 | /* allocate extended descriptor */ |
Horia Geanta | 62293a3 | 2013-11-28 15:11:17 +0200 | [diff] [blame] | 1307 | edesc = aead_edesc_alloc(areq, req->giv, 0, true); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1308 | if (IS_ERR(edesc)) |
| 1309 | return PTR_ERR(edesc); |
| 1310 | |
| 1311 | /* set encrypt */ |
Lee Nipper | 70bcaca | 2008-07-03 19:08:46 +0800 | [diff] [blame] | 1312 | edesc->desc.hdr = ctx->desc_hdr_template | DESC_HDR_MODE0_ENCRYPT; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1313 | |
| 1314 | memcpy(req->giv, ctx->iv, crypto_aead_ivsize(authenc)); |
Kim Phillips | ba95487 | 2008-09-14 13:41:19 -0700 | [diff] [blame] | 1315 | /* avoid consecutive packets going out with same IV */ |
| 1316 | *(__be64 *)req->giv ^= cpu_to_be64(req->seq); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1317 | |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1318 | return ipsec_esp(edesc, areq, req->seq, ipsec_esp_encrypt_done); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1319 | } |
| 1320 | |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1321 | static int ablkcipher_setkey(struct crypto_ablkcipher *cipher, |
| 1322 | const u8 *key, unsigned int keylen) |
| 1323 | { |
| 1324 | struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher); |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1325 | |
| 1326 | memcpy(&ctx->key, key, keylen); |
| 1327 | ctx->keylen = keylen; |
| 1328 | |
| 1329 | return 0; |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1330 | } |
| 1331 | |
| 1332 | static void common_nonsnoop_unmap(struct device *dev, |
| 1333 | struct talitos_edesc *edesc, |
| 1334 | struct ablkcipher_request *areq) |
| 1335 | { |
| 1336 | unmap_single_talitos_ptr(dev, &edesc->desc.ptr[5], DMA_FROM_DEVICE); |
| 1337 | unmap_single_talitos_ptr(dev, &edesc->desc.ptr[2], DMA_TO_DEVICE); |
| 1338 | unmap_single_talitos_ptr(dev, &edesc->desc.ptr[1], DMA_TO_DEVICE); |
| 1339 | |
| 1340 | talitos_sg_unmap(dev, edesc, areq->src, areq->dst); |
| 1341 | |
| 1342 | if (edesc->dma_len) |
| 1343 | dma_unmap_single(dev, edesc->dma_link_tbl, edesc->dma_len, |
| 1344 | DMA_BIDIRECTIONAL); |
| 1345 | } |
| 1346 | |
| 1347 | static void ablkcipher_done(struct device *dev, |
| 1348 | struct talitos_desc *desc, void *context, |
| 1349 | int err) |
| 1350 | { |
| 1351 | struct ablkcipher_request *areq = context; |
Kim Phillips | 19bbbc6 | 2009-03-29 15:53:59 +0800 | [diff] [blame] | 1352 | struct talitos_edesc *edesc; |
| 1353 | |
| 1354 | edesc = container_of(desc, struct talitos_edesc, desc); |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1355 | |
| 1356 | common_nonsnoop_unmap(dev, edesc, areq); |
| 1357 | |
| 1358 | kfree(edesc); |
| 1359 | |
| 1360 | areq->base.complete(&areq->base, err); |
| 1361 | } |
| 1362 | |
| 1363 | static int common_nonsnoop(struct talitos_edesc *edesc, |
| 1364 | struct ablkcipher_request *areq, |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1365 | void (*callback) (struct device *dev, |
| 1366 | struct talitos_desc *desc, |
| 1367 | void *context, int error)) |
| 1368 | { |
| 1369 | struct crypto_ablkcipher *cipher = crypto_ablkcipher_reqtfm(areq); |
| 1370 | struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher); |
| 1371 | struct device *dev = ctx->dev; |
| 1372 | struct talitos_desc *desc = &edesc->desc; |
| 1373 | unsigned int cryptlen = areq->nbytes; |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1374 | unsigned int ivsize = crypto_ablkcipher_ivsize(cipher); |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1375 | int sg_count, ret; |
| 1376 | |
| 1377 | /* first DWORD empty */ |
| 1378 | desc->ptr[0].len = 0; |
Kim Phillips | 81eb024 | 2009-08-13 11:51:51 +1000 | [diff] [blame] | 1379 | to_talitos_ptr(&desc->ptr[0], 0); |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1380 | desc->ptr[0].j_extent = 0; |
| 1381 | |
| 1382 | /* cipher iv */ |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1383 | to_talitos_ptr(&desc->ptr[1], edesc->iv_dma); |
| 1384 | desc->ptr[1].len = cpu_to_be16(ivsize); |
| 1385 | desc->ptr[1].j_extent = 0; |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1386 | |
| 1387 | /* cipher key */ |
| 1388 | map_single_talitos_ptr(dev, &desc->ptr[2], ctx->keylen, |
| 1389 | (char *)&ctx->key, 0, DMA_TO_DEVICE); |
| 1390 | |
| 1391 | /* |
| 1392 | * cipher in |
| 1393 | */ |
| 1394 | desc->ptr[3].len = cpu_to_be16(cryptlen); |
| 1395 | desc->ptr[3].j_extent = 0; |
| 1396 | |
| 1397 | sg_count = talitos_map_sg(dev, areq->src, edesc->src_nents ? : 1, |
| 1398 | (areq->src == areq->dst) ? DMA_BIDIRECTIONAL |
| 1399 | : DMA_TO_DEVICE, |
Horia Geanta | 2a1cfe4 | 2012-08-02 17:16:39 +0300 | [diff] [blame] | 1400 | edesc->src_chained); |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1401 | |
| 1402 | if (sg_count == 1) { |
Kim Phillips | 81eb024 | 2009-08-13 11:51:51 +1000 | [diff] [blame] | 1403 | to_talitos_ptr(&desc->ptr[3], sg_dma_address(areq->src)); |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1404 | } else { |
| 1405 | sg_count = sg_to_link_tbl(areq->src, sg_count, cryptlen, |
| 1406 | &edesc->link_tbl[0]); |
| 1407 | if (sg_count > 1) { |
Kim Phillips | 81eb024 | 2009-08-13 11:51:51 +1000 | [diff] [blame] | 1408 | to_talitos_ptr(&desc->ptr[3], edesc->dma_link_tbl); |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1409 | desc->ptr[3].j_extent |= DESC_PTR_LNKTBL_JUMP; |
Kim Phillips | e938e46 | 2009-03-29 15:53:23 +0800 | [diff] [blame] | 1410 | dma_sync_single_for_device(dev, edesc->dma_link_tbl, |
| 1411 | edesc->dma_len, |
| 1412 | DMA_BIDIRECTIONAL); |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1413 | } else { |
| 1414 | /* Only one segment now, so no link tbl needed */ |
Kim Phillips | 81eb024 | 2009-08-13 11:51:51 +1000 | [diff] [blame] | 1415 | to_talitos_ptr(&desc->ptr[3], |
| 1416 | sg_dma_address(areq->src)); |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1417 | } |
| 1418 | } |
| 1419 | |
| 1420 | /* cipher out */ |
| 1421 | desc->ptr[4].len = cpu_to_be16(cryptlen); |
| 1422 | desc->ptr[4].j_extent = 0; |
| 1423 | |
| 1424 | if (areq->src != areq->dst) |
| 1425 | sg_count = talitos_map_sg(dev, areq->dst, |
| 1426 | edesc->dst_nents ? : 1, |
Horia Geanta | 2a1cfe4 | 2012-08-02 17:16:39 +0300 | [diff] [blame] | 1427 | DMA_FROM_DEVICE, edesc->dst_chained); |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1428 | |
| 1429 | if (sg_count == 1) { |
Kim Phillips | 81eb024 | 2009-08-13 11:51:51 +1000 | [diff] [blame] | 1430 | to_talitos_ptr(&desc->ptr[4], sg_dma_address(areq->dst)); |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1431 | } else { |
| 1432 | struct talitos_ptr *link_tbl_ptr = |
| 1433 | &edesc->link_tbl[edesc->src_nents + 1]; |
| 1434 | |
Kim Phillips | 81eb024 | 2009-08-13 11:51:51 +1000 | [diff] [blame] | 1435 | to_talitos_ptr(&desc->ptr[4], edesc->dma_link_tbl + |
| 1436 | (edesc->src_nents + 1) * |
| 1437 | sizeof(struct talitos_ptr)); |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1438 | desc->ptr[4].j_extent |= DESC_PTR_LNKTBL_JUMP; |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1439 | sg_count = sg_to_link_tbl(areq->dst, sg_count, cryptlen, |
| 1440 | link_tbl_ptr); |
| 1441 | dma_sync_single_for_device(ctx->dev, edesc->dma_link_tbl, |
| 1442 | edesc->dma_len, DMA_BIDIRECTIONAL); |
| 1443 | } |
| 1444 | |
| 1445 | /* iv out */ |
| 1446 | map_single_talitos_ptr(dev, &desc->ptr[5], ivsize, ctx->iv, 0, |
| 1447 | DMA_FROM_DEVICE); |
| 1448 | |
| 1449 | /* last DWORD empty */ |
| 1450 | desc->ptr[6].len = 0; |
Kim Phillips | 81eb024 | 2009-08-13 11:51:51 +1000 | [diff] [blame] | 1451 | to_talitos_ptr(&desc->ptr[6], 0); |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1452 | desc->ptr[6].j_extent = 0; |
| 1453 | |
Kim Phillips | 5228f0f | 2011-07-15 11:21:38 +0800 | [diff] [blame] | 1454 | ret = talitos_submit(dev, ctx->ch, desc, callback, areq); |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1455 | if (ret != -EINPROGRESS) { |
| 1456 | common_nonsnoop_unmap(dev, edesc, areq); |
| 1457 | kfree(edesc); |
| 1458 | } |
| 1459 | return ret; |
| 1460 | } |
| 1461 | |
Kim Phillips | e938e46 | 2009-03-29 15:53:23 +0800 | [diff] [blame] | 1462 | static struct talitos_edesc *ablkcipher_edesc_alloc(struct ablkcipher_request * |
Horia Geanta | 62293a3 | 2013-11-28 15:11:17 +0200 | [diff] [blame] | 1463 | areq, bool encrypt) |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1464 | { |
| 1465 | struct crypto_ablkcipher *cipher = crypto_ablkcipher_reqtfm(areq); |
| 1466 | struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher); |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1467 | unsigned int ivsize = crypto_ablkcipher_ivsize(cipher); |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1468 | |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1469 | return talitos_edesc_alloc(ctx->dev, NULL, areq->src, areq->dst, |
| 1470 | areq->info, 0, areq->nbytes, 0, ivsize, 0, |
Horia Geanta | 62293a3 | 2013-11-28 15:11:17 +0200 | [diff] [blame] | 1471 | areq->base.flags, encrypt); |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1472 | } |
| 1473 | |
| 1474 | static int ablkcipher_encrypt(struct ablkcipher_request *areq) |
| 1475 | { |
| 1476 | struct crypto_ablkcipher *cipher = crypto_ablkcipher_reqtfm(areq); |
| 1477 | struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher); |
| 1478 | struct talitos_edesc *edesc; |
| 1479 | |
| 1480 | /* allocate extended descriptor */ |
Horia Geanta | 62293a3 | 2013-11-28 15:11:17 +0200 | [diff] [blame] | 1481 | edesc = ablkcipher_edesc_alloc(areq, true); |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1482 | if (IS_ERR(edesc)) |
| 1483 | return PTR_ERR(edesc); |
| 1484 | |
| 1485 | /* set encrypt */ |
| 1486 | edesc->desc.hdr = ctx->desc_hdr_template | DESC_HDR_MODE0_ENCRYPT; |
| 1487 | |
Kim Phillips | febec54 | 2011-07-15 11:21:39 +0800 | [diff] [blame] | 1488 | return common_nonsnoop(edesc, areq, ablkcipher_done); |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1489 | } |
| 1490 | |
| 1491 | static int ablkcipher_decrypt(struct ablkcipher_request *areq) |
| 1492 | { |
| 1493 | struct crypto_ablkcipher *cipher = crypto_ablkcipher_reqtfm(areq); |
| 1494 | struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher); |
| 1495 | struct talitos_edesc *edesc; |
| 1496 | |
| 1497 | /* allocate extended descriptor */ |
Horia Geanta | 62293a3 | 2013-11-28 15:11:17 +0200 | [diff] [blame] | 1498 | edesc = ablkcipher_edesc_alloc(areq, false); |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1499 | if (IS_ERR(edesc)) |
| 1500 | return PTR_ERR(edesc); |
| 1501 | |
| 1502 | edesc->desc.hdr = ctx->desc_hdr_template | DESC_HDR_DIR_INBOUND; |
| 1503 | |
Kim Phillips | febec54 | 2011-07-15 11:21:39 +0800 | [diff] [blame] | 1504 | return common_nonsnoop(edesc, areq, ablkcipher_done); |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 1505 | } |
| 1506 | |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 1507 | static void common_nonsnoop_hash_unmap(struct device *dev, |
| 1508 | struct talitos_edesc *edesc, |
| 1509 | struct ahash_request *areq) |
| 1510 | { |
| 1511 | struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); |
| 1512 | |
| 1513 | unmap_single_talitos_ptr(dev, &edesc->desc.ptr[5], DMA_FROM_DEVICE); |
| 1514 | |
| 1515 | /* When using hashctx-in, must unmap it. */ |
| 1516 | if (edesc->desc.ptr[1].len) |
| 1517 | unmap_single_talitos_ptr(dev, &edesc->desc.ptr[1], |
| 1518 | DMA_TO_DEVICE); |
| 1519 | |
| 1520 | if (edesc->desc.ptr[2].len) |
| 1521 | unmap_single_talitos_ptr(dev, &edesc->desc.ptr[2], |
| 1522 | DMA_TO_DEVICE); |
| 1523 | |
| 1524 | talitos_sg_unmap(dev, edesc, req_ctx->psrc, NULL); |
| 1525 | |
| 1526 | if (edesc->dma_len) |
| 1527 | dma_unmap_single(dev, edesc->dma_link_tbl, edesc->dma_len, |
| 1528 | DMA_BIDIRECTIONAL); |
| 1529 | |
| 1530 | } |
| 1531 | |
| 1532 | static void ahash_done(struct device *dev, |
| 1533 | struct talitos_desc *desc, void *context, |
| 1534 | int err) |
| 1535 | { |
| 1536 | struct ahash_request *areq = context; |
| 1537 | struct talitos_edesc *edesc = |
| 1538 | container_of(desc, struct talitos_edesc, desc); |
| 1539 | struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); |
| 1540 | |
| 1541 | if (!req_ctx->last && req_ctx->to_hash_later) { |
| 1542 | /* Position any partial block for next update/final/finup */ |
| 1543 | memcpy(req_ctx->buf, req_ctx->bufnext, req_ctx->to_hash_later); |
Lee Nipper | 5e833bc | 2010-06-16 15:29:15 +1000 | [diff] [blame] | 1544 | req_ctx->nbuf = req_ctx->to_hash_later; |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 1545 | } |
| 1546 | common_nonsnoop_hash_unmap(dev, edesc, areq); |
| 1547 | |
| 1548 | kfree(edesc); |
| 1549 | |
| 1550 | areq->base.complete(&areq->base, err); |
| 1551 | } |
| 1552 | |
| 1553 | static int common_nonsnoop_hash(struct talitos_edesc *edesc, |
| 1554 | struct ahash_request *areq, unsigned int length, |
| 1555 | void (*callback) (struct device *dev, |
| 1556 | struct talitos_desc *desc, |
| 1557 | void *context, int error)) |
| 1558 | { |
| 1559 | struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq); |
| 1560 | struct talitos_ctx *ctx = crypto_ahash_ctx(tfm); |
| 1561 | struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); |
| 1562 | struct device *dev = ctx->dev; |
| 1563 | struct talitos_desc *desc = &edesc->desc; |
| 1564 | int sg_count, ret; |
| 1565 | |
| 1566 | /* first DWORD empty */ |
| 1567 | desc->ptr[0] = zero_entry; |
| 1568 | |
Kim Phillips | 60f208d7 | 2010-05-19 19:21:53 +1000 | [diff] [blame] | 1569 | /* hash context in */ |
| 1570 | if (!req_ctx->first || req_ctx->swinit) { |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 1571 | map_single_talitos_ptr(dev, &desc->ptr[1], |
| 1572 | req_ctx->hw_context_size, |
| 1573 | (char *)req_ctx->hw_context, 0, |
| 1574 | DMA_TO_DEVICE); |
Kim Phillips | 60f208d7 | 2010-05-19 19:21:53 +1000 | [diff] [blame] | 1575 | req_ctx->swinit = 0; |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 1576 | } else { |
| 1577 | desc->ptr[1] = zero_entry; |
| 1578 | /* Indicate next op is not the first. */ |
| 1579 | req_ctx->first = 0; |
| 1580 | } |
| 1581 | |
| 1582 | /* HMAC key */ |
| 1583 | if (ctx->keylen) |
| 1584 | map_single_talitos_ptr(dev, &desc->ptr[2], ctx->keylen, |
| 1585 | (char *)&ctx->key, 0, DMA_TO_DEVICE); |
| 1586 | else |
| 1587 | desc->ptr[2] = zero_entry; |
| 1588 | |
| 1589 | /* |
| 1590 | * data in |
| 1591 | */ |
| 1592 | desc->ptr[3].len = cpu_to_be16(length); |
| 1593 | desc->ptr[3].j_extent = 0; |
| 1594 | |
| 1595 | sg_count = talitos_map_sg(dev, req_ctx->psrc, |
| 1596 | edesc->src_nents ? : 1, |
Horia Geanta | 2a1cfe4 | 2012-08-02 17:16:39 +0300 | [diff] [blame] | 1597 | DMA_TO_DEVICE, edesc->src_chained); |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 1598 | |
| 1599 | if (sg_count == 1) { |
| 1600 | to_talitos_ptr(&desc->ptr[3], sg_dma_address(req_ctx->psrc)); |
| 1601 | } else { |
| 1602 | sg_count = sg_to_link_tbl(req_ctx->psrc, sg_count, length, |
| 1603 | &edesc->link_tbl[0]); |
| 1604 | if (sg_count > 1) { |
| 1605 | desc->ptr[3].j_extent |= DESC_PTR_LNKTBL_JUMP; |
| 1606 | to_talitos_ptr(&desc->ptr[3], edesc->dma_link_tbl); |
| 1607 | dma_sync_single_for_device(ctx->dev, |
| 1608 | edesc->dma_link_tbl, |
| 1609 | edesc->dma_len, |
| 1610 | DMA_BIDIRECTIONAL); |
| 1611 | } else { |
| 1612 | /* Only one segment now, so no link tbl needed */ |
| 1613 | to_talitos_ptr(&desc->ptr[3], |
| 1614 | sg_dma_address(req_ctx->psrc)); |
| 1615 | } |
| 1616 | } |
| 1617 | |
| 1618 | /* fifth DWORD empty */ |
| 1619 | desc->ptr[4] = zero_entry; |
| 1620 | |
| 1621 | /* hash/HMAC out -or- hash context out */ |
| 1622 | if (req_ctx->last) |
| 1623 | map_single_talitos_ptr(dev, &desc->ptr[5], |
| 1624 | crypto_ahash_digestsize(tfm), |
| 1625 | areq->result, 0, DMA_FROM_DEVICE); |
| 1626 | else |
| 1627 | map_single_talitos_ptr(dev, &desc->ptr[5], |
| 1628 | req_ctx->hw_context_size, |
| 1629 | req_ctx->hw_context, 0, DMA_FROM_DEVICE); |
| 1630 | |
| 1631 | /* last DWORD empty */ |
| 1632 | desc->ptr[6] = zero_entry; |
| 1633 | |
Kim Phillips | 5228f0f | 2011-07-15 11:21:38 +0800 | [diff] [blame] | 1634 | ret = talitos_submit(dev, ctx->ch, desc, callback, areq); |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 1635 | if (ret != -EINPROGRESS) { |
| 1636 | common_nonsnoop_hash_unmap(dev, edesc, areq); |
| 1637 | kfree(edesc); |
| 1638 | } |
| 1639 | return ret; |
| 1640 | } |
| 1641 | |
| 1642 | static struct talitos_edesc *ahash_edesc_alloc(struct ahash_request *areq, |
| 1643 | unsigned int nbytes) |
| 1644 | { |
| 1645 | struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq); |
| 1646 | struct talitos_ctx *ctx = crypto_ahash_ctx(tfm); |
| 1647 | struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); |
| 1648 | |
Horia Geanta | 79fd31d | 2012-08-02 17:16:40 +0300 | [diff] [blame] | 1649 | return talitos_edesc_alloc(ctx->dev, NULL, req_ctx->psrc, NULL, NULL, 0, |
Horia Geanta | 62293a3 | 2013-11-28 15:11:17 +0200 | [diff] [blame] | 1650 | nbytes, 0, 0, 0, areq->base.flags, false); |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 1651 | } |
| 1652 | |
| 1653 | static int ahash_init(struct ahash_request *areq) |
| 1654 | { |
| 1655 | struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq); |
| 1656 | struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); |
| 1657 | |
| 1658 | /* Initialize the context */ |
Lee Nipper | 5e833bc | 2010-06-16 15:29:15 +1000 | [diff] [blame] | 1659 | req_ctx->nbuf = 0; |
Kim Phillips | 60f208d7 | 2010-05-19 19:21:53 +1000 | [diff] [blame] | 1660 | req_ctx->first = 1; /* first indicates h/w must init its context */ |
| 1661 | req_ctx->swinit = 0; /* assume h/w init of context */ |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 1662 | req_ctx->hw_context_size = |
| 1663 | (crypto_ahash_digestsize(tfm) <= SHA256_DIGEST_SIZE) |
| 1664 | ? TALITOS_MDEU_CONTEXT_SIZE_MD5_SHA1_SHA256 |
| 1665 | : TALITOS_MDEU_CONTEXT_SIZE_SHA384_SHA512; |
| 1666 | |
| 1667 | return 0; |
| 1668 | } |
| 1669 | |
Kim Phillips | 60f208d7 | 2010-05-19 19:21:53 +1000 | [diff] [blame] | 1670 | /* |
| 1671 | * on h/w without explicit sha224 support, we initialize h/w context |
| 1672 | * manually with sha224 constants, and tell it to run sha256. |
| 1673 | */ |
| 1674 | static int ahash_init_sha224_swinit(struct ahash_request *areq) |
| 1675 | { |
| 1676 | struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); |
| 1677 | |
| 1678 | ahash_init(areq); |
| 1679 | req_ctx->swinit = 1;/* prevent h/w initting context with sha256 values*/ |
| 1680 | |
Kim Phillips | a752447 | 2010-09-23 15:56:38 +0800 | [diff] [blame] | 1681 | req_ctx->hw_context[0] = SHA224_H0; |
| 1682 | req_ctx->hw_context[1] = SHA224_H1; |
| 1683 | req_ctx->hw_context[2] = SHA224_H2; |
| 1684 | req_ctx->hw_context[3] = SHA224_H3; |
| 1685 | req_ctx->hw_context[4] = SHA224_H4; |
| 1686 | req_ctx->hw_context[5] = SHA224_H5; |
| 1687 | req_ctx->hw_context[6] = SHA224_H6; |
| 1688 | req_ctx->hw_context[7] = SHA224_H7; |
Kim Phillips | 60f208d7 | 2010-05-19 19:21:53 +1000 | [diff] [blame] | 1689 | |
| 1690 | /* init 64-bit count */ |
| 1691 | req_ctx->hw_context[8] = 0; |
| 1692 | req_ctx->hw_context[9] = 0; |
| 1693 | |
| 1694 | return 0; |
| 1695 | } |
| 1696 | |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 1697 | static int ahash_process_req(struct ahash_request *areq, unsigned int nbytes) |
| 1698 | { |
| 1699 | struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq); |
| 1700 | struct talitos_ctx *ctx = crypto_ahash_ctx(tfm); |
| 1701 | struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); |
| 1702 | struct talitos_edesc *edesc; |
| 1703 | unsigned int blocksize = |
| 1704 | crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm)); |
| 1705 | unsigned int nbytes_to_hash; |
| 1706 | unsigned int to_hash_later; |
Lee Nipper | 5e833bc | 2010-06-16 15:29:15 +1000 | [diff] [blame] | 1707 | unsigned int nsg; |
Horia Geanta | 2a1cfe4 | 2012-08-02 17:16:39 +0300 | [diff] [blame] | 1708 | bool chained; |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 1709 | |
Lee Nipper | 5e833bc | 2010-06-16 15:29:15 +1000 | [diff] [blame] | 1710 | if (!req_ctx->last && (nbytes + req_ctx->nbuf <= blocksize)) { |
| 1711 | /* Buffer up to one whole block */ |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 1712 | sg_copy_to_buffer(areq->src, |
| 1713 | sg_count(areq->src, nbytes, &chained), |
Lee Nipper | 5e833bc | 2010-06-16 15:29:15 +1000 | [diff] [blame] | 1714 | req_ctx->buf + req_ctx->nbuf, nbytes); |
| 1715 | req_ctx->nbuf += nbytes; |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 1716 | return 0; |
| 1717 | } |
| 1718 | |
Lee Nipper | 5e833bc | 2010-06-16 15:29:15 +1000 | [diff] [blame] | 1719 | /* At least (blocksize + 1) bytes are available to hash */ |
| 1720 | nbytes_to_hash = nbytes + req_ctx->nbuf; |
| 1721 | to_hash_later = nbytes_to_hash & (blocksize - 1); |
| 1722 | |
| 1723 | if (req_ctx->last) |
| 1724 | to_hash_later = 0; |
| 1725 | else if (to_hash_later) |
| 1726 | /* There is a partial block. Hash the full block(s) now */ |
| 1727 | nbytes_to_hash -= to_hash_later; |
| 1728 | else { |
| 1729 | /* Keep one block buffered */ |
| 1730 | nbytes_to_hash -= blocksize; |
| 1731 | to_hash_later = blocksize; |
| 1732 | } |
| 1733 | |
| 1734 | /* Chain in any previously buffered data */ |
| 1735 | if (req_ctx->nbuf) { |
| 1736 | nsg = (req_ctx->nbuf < nbytes_to_hash) ? 2 : 1; |
| 1737 | sg_init_table(req_ctx->bufsl, nsg); |
| 1738 | sg_set_buf(req_ctx->bufsl, req_ctx->buf, req_ctx->nbuf); |
| 1739 | if (nsg > 1) |
| 1740 | scatterwalk_sg_chain(req_ctx->bufsl, 2, areq->src); |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 1741 | req_ctx->psrc = req_ctx->bufsl; |
Lee Nipper | 5e833bc | 2010-06-16 15:29:15 +1000 | [diff] [blame] | 1742 | } else |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 1743 | req_ctx->psrc = areq->src; |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 1744 | |
Lee Nipper | 5e833bc | 2010-06-16 15:29:15 +1000 | [diff] [blame] | 1745 | if (to_hash_later) { |
| 1746 | int nents = sg_count(areq->src, nbytes, &chained); |
Akinobu Mita | d052572 | 2013-07-08 16:01:55 -0700 | [diff] [blame] | 1747 | sg_pcopy_to_buffer(areq->src, nents, |
Lee Nipper | 5e833bc | 2010-06-16 15:29:15 +1000 | [diff] [blame] | 1748 | req_ctx->bufnext, |
| 1749 | to_hash_later, |
| 1750 | nbytes - to_hash_later); |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 1751 | } |
Lee Nipper | 5e833bc | 2010-06-16 15:29:15 +1000 | [diff] [blame] | 1752 | req_ctx->to_hash_later = to_hash_later; |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 1753 | |
Lee Nipper | 5e833bc | 2010-06-16 15:29:15 +1000 | [diff] [blame] | 1754 | /* Allocate extended descriptor */ |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 1755 | edesc = ahash_edesc_alloc(areq, nbytes_to_hash); |
| 1756 | if (IS_ERR(edesc)) |
| 1757 | return PTR_ERR(edesc); |
| 1758 | |
| 1759 | edesc->desc.hdr = ctx->desc_hdr_template; |
| 1760 | |
| 1761 | /* On last one, request SEC to pad; otherwise continue */ |
| 1762 | if (req_ctx->last) |
| 1763 | edesc->desc.hdr |= DESC_HDR_MODE0_MDEU_PAD; |
| 1764 | else |
| 1765 | edesc->desc.hdr |= DESC_HDR_MODE0_MDEU_CONT; |
| 1766 | |
Kim Phillips | 60f208d7 | 2010-05-19 19:21:53 +1000 | [diff] [blame] | 1767 | /* request SEC to INIT hash. */ |
| 1768 | if (req_ctx->first && !req_ctx->swinit) |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 1769 | edesc->desc.hdr |= DESC_HDR_MODE0_MDEU_INIT; |
| 1770 | |
| 1771 | /* When the tfm context has a keylen, it's an HMAC. |
| 1772 | * A first or last (ie. not middle) descriptor must request HMAC. |
| 1773 | */ |
| 1774 | if (ctx->keylen && (req_ctx->first || req_ctx->last)) |
| 1775 | edesc->desc.hdr |= DESC_HDR_MODE0_MDEU_HMAC; |
| 1776 | |
| 1777 | return common_nonsnoop_hash(edesc, areq, nbytes_to_hash, |
| 1778 | ahash_done); |
| 1779 | } |
| 1780 | |
| 1781 | static int ahash_update(struct ahash_request *areq) |
| 1782 | { |
| 1783 | struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); |
| 1784 | |
| 1785 | req_ctx->last = 0; |
| 1786 | |
| 1787 | return ahash_process_req(areq, areq->nbytes); |
| 1788 | } |
| 1789 | |
| 1790 | static int ahash_final(struct ahash_request *areq) |
| 1791 | { |
| 1792 | struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); |
| 1793 | |
| 1794 | req_ctx->last = 1; |
| 1795 | |
| 1796 | return ahash_process_req(areq, 0); |
| 1797 | } |
| 1798 | |
| 1799 | static int ahash_finup(struct ahash_request *areq) |
| 1800 | { |
| 1801 | struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); |
| 1802 | |
| 1803 | req_ctx->last = 1; |
| 1804 | |
| 1805 | return ahash_process_req(areq, areq->nbytes); |
| 1806 | } |
| 1807 | |
| 1808 | static int ahash_digest(struct ahash_request *areq) |
| 1809 | { |
| 1810 | struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); |
Kim Phillips | 60f208d7 | 2010-05-19 19:21:53 +1000 | [diff] [blame] | 1811 | struct crypto_ahash *ahash = crypto_ahash_reqtfm(areq); |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 1812 | |
Kim Phillips | 60f208d7 | 2010-05-19 19:21:53 +1000 | [diff] [blame] | 1813 | ahash->init(areq); |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 1814 | req_ctx->last = 1; |
| 1815 | |
| 1816 | return ahash_process_req(areq, areq->nbytes); |
| 1817 | } |
| 1818 | |
Lee Nipper | 79b3a41 | 2011-11-21 16:13:25 +0800 | [diff] [blame] | 1819 | struct keyhash_result { |
| 1820 | struct completion completion; |
| 1821 | int err; |
| 1822 | }; |
| 1823 | |
| 1824 | static void keyhash_complete(struct crypto_async_request *req, int err) |
| 1825 | { |
| 1826 | struct keyhash_result *res = req->data; |
| 1827 | |
| 1828 | if (err == -EINPROGRESS) |
| 1829 | return; |
| 1830 | |
| 1831 | res->err = err; |
| 1832 | complete(&res->completion); |
| 1833 | } |
| 1834 | |
| 1835 | static int keyhash(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen, |
| 1836 | u8 *hash) |
| 1837 | { |
| 1838 | struct talitos_ctx *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm)); |
| 1839 | |
| 1840 | struct scatterlist sg[1]; |
| 1841 | struct ahash_request *req; |
| 1842 | struct keyhash_result hresult; |
| 1843 | int ret; |
| 1844 | |
| 1845 | init_completion(&hresult.completion); |
| 1846 | |
| 1847 | req = ahash_request_alloc(tfm, GFP_KERNEL); |
| 1848 | if (!req) |
| 1849 | return -ENOMEM; |
| 1850 | |
| 1851 | /* Keep tfm keylen == 0 during hash of the long key */ |
| 1852 | ctx->keylen = 0; |
| 1853 | ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, |
| 1854 | keyhash_complete, &hresult); |
| 1855 | |
| 1856 | sg_init_one(&sg[0], key, keylen); |
| 1857 | |
| 1858 | ahash_request_set_crypt(req, sg, hash, keylen); |
| 1859 | ret = crypto_ahash_digest(req); |
| 1860 | switch (ret) { |
| 1861 | case 0: |
| 1862 | break; |
| 1863 | case -EINPROGRESS: |
| 1864 | case -EBUSY: |
| 1865 | ret = wait_for_completion_interruptible( |
| 1866 | &hresult.completion); |
| 1867 | if (!ret) |
| 1868 | ret = hresult.err; |
| 1869 | break; |
| 1870 | default: |
| 1871 | break; |
| 1872 | } |
| 1873 | ahash_request_free(req); |
| 1874 | |
| 1875 | return ret; |
| 1876 | } |
| 1877 | |
| 1878 | static int ahash_setkey(struct crypto_ahash *tfm, const u8 *key, |
| 1879 | unsigned int keylen) |
| 1880 | { |
| 1881 | struct talitos_ctx *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm)); |
| 1882 | unsigned int blocksize = |
| 1883 | crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm)); |
| 1884 | unsigned int digestsize = crypto_ahash_digestsize(tfm); |
| 1885 | unsigned int keysize = keylen; |
| 1886 | u8 hash[SHA512_DIGEST_SIZE]; |
| 1887 | int ret; |
| 1888 | |
| 1889 | if (keylen <= blocksize) |
| 1890 | memcpy(ctx->key, key, keysize); |
| 1891 | else { |
| 1892 | /* Must get the hash of the long key */ |
| 1893 | ret = keyhash(tfm, key, keylen, hash); |
| 1894 | |
| 1895 | if (ret) { |
| 1896 | crypto_ahash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN); |
| 1897 | return -EINVAL; |
| 1898 | } |
| 1899 | |
| 1900 | keysize = digestsize; |
| 1901 | memcpy(ctx->key, hash, digestsize); |
| 1902 | } |
| 1903 | |
| 1904 | ctx->keylen = keysize; |
| 1905 | |
| 1906 | return 0; |
| 1907 | } |
| 1908 | |
| 1909 | |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1910 | struct talitos_alg_template { |
Lee Nipper | d5e4aae | 2010-05-19 19:18:38 +1000 | [diff] [blame] | 1911 | u32 type; |
| 1912 | union { |
| 1913 | struct crypto_alg crypto; |
Lee Nipper | acbf7c62 | 2010-05-19 19:19:33 +1000 | [diff] [blame] | 1914 | struct ahash_alg hash; |
Lee Nipper | d5e4aae | 2010-05-19 19:18:38 +1000 | [diff] [blame] | 1915 | } alg; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1916 | __be32 desc_hdr_template; |
| 1917 | }; |
| 1918 | |
| 1919 | static struct talitos_alg_template driver_algs[] = { |
Horia Geanta | 991155b | 2013-03-20 16:31:38 +0200 | [diff] [blame] | 1920 | /* AEAD algorithms. These use a single-pass ipsec_esp descriptor */ |
Lee Nipper | d5e4aae | 2010-05-19 19:18:38 +1000 | [diff] [blame] | 1921 | { .type = CRYPTO_ALG_TYPE_AEAD, |
| 1922 | .alg.crypto = { |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 1923 | .cra_name = "authenc(hmac(sha1),cbc(aes))", |
| 1924 | .cra_driver_name = "authenc-hmac-sha1-cbc-aes-talitos", |
| 1925 | .cra_blocksize = AES_BLOCK_SIZE, |
| 1926 | .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC, |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 1927 | .cra_aead = { |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 1928 | .ivsize = AES_BLOCK_SIZE, |
| 1929 | .maxauthsize = SHA1_DIGEST_SIZE, |
| 1930 | } |
| 1931 | }, |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 1932 | .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP | |
| 1933 | DESC_HDR_SEL0_AESU | |
| 1934 | DESC_HDR_MODE0_AESU_CBC | |
| 1935 | DESC_HDR_SEL1_MDEUA | |
| 1936 | DESC_HDR_MODE1_MDEU_INIT | |
| 1937 | DESC_HDR_MODE1_MDEU_PAD | |
| 1938 | DESC_HDR_MODE1_MDEU_SHA1_HMAC, |
Lee Nipper | 70bcaca | 2008-07-03 19:08:46 +0800 | [diff] [blame] | 1939 | }, |
Lee Nipper | d5e4aae | 2010-05-19 19:18:38 +1000 | [diff] [blame] | 1940 | { .type = CRYPTO_ALG_TYPE_AEAD, |
| 1941 | .alg.crypto = { |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 1942 | .cra_name = "authenc(hmac(sha1),cbc(des3_ede))", |
| 1943 | .cra_driver_name = "authenc-hmac-sha1-cbc-3des-talitos", |
| 1944 | .cra_blocksize = DES3_EDE_BLOCK_SIZE, |
| 1945 | .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC, |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 1946 | .cra_aead = { |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 1947 | .ivsize = DES3_EDE_BLOCK_SIZE, |
| 1948 | .maxauthsize = SHA1_DIGEST_SIZE, |
| 1949 | } |
| 1950 | }, |
Lee Nipper | 70bcaca | 2008-07-03 19:08:46 +0800 | [diff] [blame] | 1951 | .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP | |
| 1952 | DESC_HDR_SEL0_DEU | |
| 1953 | DESC_HDR_MODE0_DEU_CBC | |
| 1954 | DESC_HDR_MODE0_DEU_3DES | |
| 1955 | DESC_HDR_SEL1_MDEUA | |
| 1956 | DESC_HDR_MODE1_MDEU_INIT | |
| 1957 | DESC_HDR_MODE1_MDEU_PAD | |
| 1958 | DESC_HDR_MODE1_MDEU_SHA1_HMAC, |
Lee Nipper | 3952f17 | 2008-07-10 18:29:18 +0800 | [diff] [blame] | 1959 | }, |
Horia Geanta | 357fb60 | 2012-07-03 19:16:53 +0300 | [diff] [blame] | 1960 | { .type = CRYPTO_ALG_TYPE_AEAD, |
| 1961 | .alg.crypto = { |
| 1962 | .cra_name = "authenc(hmac(sha224),cbc(aes))", |
| 1963 | .cra_driver_name = "authenc-hmac-sha224-cbc-aes-talitos", |
| 1964 | .cra_blocksize = AES_BLOCK_SIZE, |
| 1965 | .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC, |
Horia Geanta | 357fb60 | 2012-07-03 19:16:53 +0300 | [diff] [blame] | 1966 | .cra_aead = { |
Horia Geanta | 357fb60 | 2012-07-03 19:16:53 +0300 | [diff] [blame] | 1967 | .ivsize = AES_BLOCK_SIZE, |
| 1968 | .maxauthsize = SHA224_DIGEST_SIZE, |
| 1969 | } |
| 1970 | }, |
| 1971 | .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP | |
| 1972 | DESC_HDR_SEL0_AESU | |
| 1973 | DESC_HDR_MODE0_AESU_CBC | |
| 1974 | DESC_HDR_SEL1_MDEUA | |
| 1975 | DESC_HDR_MODE1_MDEU_INIT | |
| 1976 | DESC_HDR_MODE1_MDEU_PAD | |
| 1977 | DESC_HDR_MODE1_MDEU_SHA224_HMAC, |
| 1978 | }, |
| 1979 | { .type = CRYPTO_ALG_TYPE_AEAD, |
| 1980 | .alg.crypto = { |
| 1981 | .cra_name = "authenc(hmac(sha224),cbc(des3_ede))", |
| 1982 | .cra_driver_name = "authenc-hmac-sha224-cbc-3des-talitos", |
| 1983 | .cra_blocksize = DES3_EDE_BLOCK_SIZE, |
| 1984 | .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC, |
Horia Geanta | 357fb60 | 2012-07-03 19:16:53 +0300 | [diff] [blame] | 1985 | .cra_aead = { |
Horia Geanta | 357fb60 | 2012-07-03 19:16:53 +0300 | [diff] [blame] | 1986 | .ivsize = DES3_EDE_BLOCK_SIZE, |
| 1987 | .maxauthsize = SHA224_DIGEST_SIZE, |
| 1988 | } |
| 1989 | }, |
| 1990 | .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP | |
| 1991 | DESC_HDR_SEL0_DEU | |
| 1992 | DESC_HDR_MODE0_DEU_CBC | |
| 1993 | DESC_HDR_MODE0_DEU_3DES | |
| 1994 | DESC_HDR_SEL1_MDEUA | |
| 1995 | DESC_HDR_MODE1_MDEU_INIT | |
| 1996 | DESC_HDR_MODE1_MDEU_PAD | |
| 1997 | DESC_HDR_MODE1_MDEU_SHA224_HMAC, |
| 1998 | }, |
Lee Nipper | d5e4aae | 2010-05-19 19:18:38 +1000 | [diff] [blame] | 1999 | { .type = CRYPTO_ALG_TYPE_AEAD, |
| 2000 | .alg.crypto = { |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 2001 | .cra_name = "authenc(hmac(sha256),cbc(aes))", |
| 2002 | .cra_driver_name = "authenc-hmac-sha256-cbc-aes-talitos", |
| 2003 | .cra_blocksize = AES_BLOCK_SIZE, |
| 2004 | .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC, |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 2005 | .cra_aead = { |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 2006 | .ivsize = AES_BLOCK_SIZE, |
| 2007 | .maxauthsize = SHA256_DIGEST_SIZE, |
| 2008 | } |
| 2009 | }, |
Lee Nipper | 3952f17 | 2008-07-10 18:29:18 +0800 | [diff] [blame] | 2010 | .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP | |
| 2011 | DESC_HDR_SEL0_AESU | |
| 2012 | DESC_HDR_MODE0_AESU_CBC | |
| 2013 | DESC_HDR_SEL1_MDEUA | |
| 2014 | DESC_HDR_MODE1_MDEU_INIT | |
| 2015 | DESC_HDR_MODE1_MDEU_PAD | |
| 2016 | DESC_HDR_MODE1_MDEU_SHA256_HMAC, |
| 2017 | }, |
Lee Nipper | d5e4aae | 2010-05-19 19:18:38 +1000 | [diff] [blame] | 2018 | { .type = CRYPTO_ALG_TYPE_AEAD, |
| 2019 | .alg.crypto = { |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 2020 | .cra_name = "authenc(hmac(sha256),cbc(des3_ede))", |
| 2021 | .cra_driver_name = "authenc-hmac-sha256-cbc-3des-talitos", |
| 2022 | .cra_blocksize = DES3_EDE_BLOCK_SIZE, |
| 2023 | .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC, |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 2024 | .cra_aead = { |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 2025 | .ivsize = DES3_EDE_BLOCK_SIZE, |
| 2026 | .maxauthsize = SHA256_DIGEST_SIZE, |
| 2027 | } |
| 2028 | }, |
Lee Nipper | 3952f17 | 2008-07-10 18:29:18 +0800 | [diff] [blame] | 2029 | .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP | |
| 2030 | DESC_HDR_SEL0_DEU | |
| 2031 | DESC_HDR_MODE0_DEU_CBC | |
| 2032 | DESC_HDR_MODE0_DEU_3DES | |
| 2033 | DESC_HDR_SEL1_MDEUA | |
| 2034 | DESC_HDR_MODE1_MDEU_INIT | |
| 2035 | DESC_HDR_MODE1_MDEU_PAD | |
| 2036 | DESC_HDR_MODE1_MDEU_SHA256_HMAC, |
| 2037 | }, |
Lee Nipper | d5e4aae | 2010-05-19 19:18:38 +1000 | [diff] [blame] | 2038 | { .type = CRYPTO_ALG_TYPE_AEAD, |
| 2039 | .alg.crypto = { |
Horia Geanta | 357fb60 | 2012-07-03 19:16:53 +0300 | [diff] [blame] | 2040 | .cra_name = "authenc(hmac(sha384),cbc(aes))", |
| 2041 | .cra_driver_name = "authenc-hmac-sha384-cbc-aes-talitos", |
| 2042 | .cra_blocksize = AES_BLOCK_SIZE, |
| 2043 | .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC, |
Horia Geanta | 357fb60 | 2012-07-03 19:16:53 +0300 | [diff] [blame] | 2044 | .cra_aead = { |
Horia Geanta | 357fb60 | 2012-07-03 19:16:53 +0300 | [diff] [blame] | 2045 | .ivsize = AES_BLOCK_SIZE, |
| 2046 | .maxauthsize = SHA384_DIGEST_SIZE, |
| 2047 | } |
| 2048 | }, |
| 2049 | .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP | |
| 2050 | DESC_HDR_SEL0_AESU | |
| 2051 | DESC_HDR_MODE0_AESU_CBC | |
| 2052 | DESC_HDR_SEL1_MDEUB | |
| 2053 | DESC_HDR_MODE1_MDEU_INIT | |
| 2054 | DESC_HDR_MODE1_MDEU_PAD | |
| 2055 | DESC_HDR_MODE1_MDEUB_SHA384_HMAC, |
| 2056 | }, |
| 2057 | { .type = CRYPTO_ALG_TYPE_AEAD, |
| 2058 | .alg.crypto = { |
| 2059 | .cra_name = "authenc(hmac(sha384),cbc(des3_ede))", |
| 2060 | .cra_driver_name = "authenc-hmac-sha384-cbc-3des-talitos", |
| 2061 | .cra_blocksize = DES3_EDE_BLOCK_SIZE, |
| 2062 | .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC, |
Horia Geanta | 357fb60 | 2012-07-03 19:16:53 +0300 | [diff] [blame] | 2063 | .cra_aead = { |
Horia Geanta | 357fb60 | 2012-07-03 19:16:53 +0300 | [diff] [blame] | 2064 | .ivsize = DES3_EDE_BLOCK_SIZE, |
| 2065 | .maxauthsize = SHA384_DIGEST_SIZE, |
| 2066 | } |
| 2067 | }, |
| 2068 | .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP | |
| 2069 | DESC_HDR_SEL0_DEU | |
| 2070 | DESC_HDR_MODE0_DEU_CBC | |
| 2071 | DESC_HDR_MODE0_DEU_3DES | |
| 2072 | DESC_HDR_SEL1_MDEUB | |
| 2073 | DESC_HDR_MODE1_MDEU_INIT | |
| 2074 | DESC_HDR_MODE1_MDEU_PAD | |
| 2075 | DESC_HDR_MODE1_MDEUB_SHA384_HMAC, |
| 2076 | }, |
| 2077 | { .type = CRYPTO_ALG_TYPE_AEAD, |
| 2078 | .alg.crypto = { |
| 2079 | .cra_name = "authenc(hmac(sha512),cbc(aes))", |
| 2080 | .cra_driver_name = "authenc-hmac-sha512-cbc-aes-talitos", |
| 2081 | .cra_blocksize = AES_BLOCK_SIZE, |
| 2082 | .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC, |
Horia Geanta | 357fb60 | 2012-07-03 19:16:53 +0300 | [diff] [blame] | 2083 | .cra_aead = { |
Horia Geanta | 357fb60 | 2012-07-03 19:16:53 +0300 | [diff] [blame] | 2084 | .ivsize = AES_BLOCK_SIZE, |
| 2085 | .maxauthsize = SHA512_DIGEST_SIZE, |
| 2086 | } |
| 2087 | }, |
| 2088 | .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP | |
| 2089 | DESC_HDR_SEL0_AESU | |
| 2090 | DESC_HDR_MODE0_AESU_CBC | |
| 2091 | DESC_HDR_SEL1_MDEUB | |
| 2092 | DESC_HDR_MODE1_MDEU_INIT | |
| 2093 | DESC_HDR_MODE1_MDEU_PAD | |
| 2094 | DESC_HDR_MODE1_MDEUB_SHA512_HMAC, |
| 2095 | }, |
| 2096 | { .type = CRYPTO_ALG_TYPE_AEAD, |
| 2097 | .alg.crypto = { |
| 2098 | .cra_name = "authenc(hmac(sha512),cbc(des3_ede))", |
| 2099 | .cra_driver_name = "authenc-hmac-sha512-cbc-3des-talitos", |
| 2100 | .cra_blocksize = DES3_EDE_BLOCK_SIZE, |
| 2101 | .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC, |
Horia Geanta | 357fb60 | 2012-07-03 19:16:53 +0300 | [diff] [blame] | 2102 | .cra_aead = { |
Horia Geanta | 357fb60 | 2012-07-03 19:16:53 +0300 | [diff] [blame] | 2103 | .ivsize = DES3_EDE_BLOCK_SIZE, |
| 2104 | .maxauthsize = SHA512_DIGEST_SIZE, |
| 2105 | } |
| 2106 | }, |
| 2107 | .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP | |
| 2108 | DESC_HDR_SEL0_DEU | |
| 2109 | DESC_HDR_MODE0_DEU_CBC | |
| 2110 | DESC_HDR_MODE0_DEU_3DES | |
| 2111 | DESC_HDR_SEL1_MDEUB | |
| 2112 | DESC_HDR_MODE1_MDEU_INIT | |
| 2113 | DESC_HDR_MODE1_MDEU_PAD | |
| 2114 | DESC_HDR_MODE1_MDEUB_SHA512_HMAC, |
| 2115 | }, |
| 2116 | { .type = CRYPTO_ALG_TYPE_AEAD, |
| 2117 | .alg.crypto = { |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 2118 | .cra_name = "authenc(hmac(md5),cbc(aes))", |
| 2119 | .cra_driver_name = "authenc-hmac-md5-cbc-aes-talitos", |
| 2120 | .cra_blocksize = AES_BLOCK_SIZE, |
| 2121 | .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC, |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 2122 | .cra_aead = { |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 2123 | .ivsize = AES_BLOCK_SIZE, |
| 2124 | .maxauthsize = MD5_DIGEST_SIZE, |
| 2125 | } |
| 2126 | }, |
Lee Nipper | 3952f17 | 2008-07-10 18:29:18 +0800 | [diff] [blame] | 2127 | .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP | |
| 2128 | DESC_HDR_SEL0_AESU | |
| 2129 | DESC_HDR_MODE0_AESU_CBC | |
| 2130 | DESC_HDR_SEL1_MDEUA | |
| 2131 | DESC_HDR_MODE1_MDEU_INIT | |
| 2132 | DESC_HDR_MODE1_MDEU_PAD | |
| 2133 | DESC_HDR_MODE1_MDEU_MD5_HMAC, |
| 2134 | }, |
Lee Nipper | d5e4aae | 2010-05-19 19:18:38 +1000 | [diff] [blame] | 2135 | { .type = CRYPTO_ALG_TYPE_AEAD, |
| 2136 | .alg.crypto = { |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 2137 | .cra_name = "authenc(hmac(md5),cbc(des3_ede))", |
| 2138 | .cra_driver_name = "authenc-hmac-md5-cbc-3des-talitos", |
| 2139 | .cra_blocksize = DES3_EDE_BLOCK_SIZE, |
| 2140 | .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC, |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 2141 | .cra_aead = { |
Lee Nipper | 56af8cd | 2009-03-29 15:50:50 +0800 | [diff] [blame] | 2142 | .ivsize = DES3_EDE_BLOCK_SIZE, |
| 2143 | .maxauthsize = MD5_DIGEST_SIZE, |
| 2144 | } |
| 2145 | }, |
Lee Nipper | 3952f17 | 2008-07-10 18:29:18 +0800 | [diff] [blame] | 2146 | .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP | |
| 2147 | DESC_HDR_SEL0_DEU | |
| 2148 | DESC_HDR_MODE0_DEU_CBC | |
| 2149 | DESC_HDR_MODE0_DEU_3DES | |
| 2150 | DESC_HDR_SEL1_MDEUA | |
| 2151 | DESC_HDR_MODE1_MDEU_INIT | |
| 2152 | DESC_HDR_MODE1_MDEU_PAD | |
| 2153 | DESC_HDR_MODE1_MDEU_MD5_HMAC, |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 2154 | }, |
| 2155 | /* ABLKCIPHER algorithms. */ |
Lee Nipper | d5e4aae | 2010-05-19 19:18:38 +1000 | [diff] [blame] | 2156 | { .type = CRYPTO_ALG_TYPE_ABLKCIPHER, |
| 2157 | .alg.crypto = { |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 2158 | .cra_name = "cbc(aes)", |
| 2159 | .cra_driver_name = "cbc-aes-talitos", |
| 2160 | .cra_blocksize = AES_BLOCK_SIZE, |
| 2161 | .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | |
| 2162 | CRYPTO_ALG_ASYNC, |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 2163 | .cra_ablkcipher = { |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 2164 | .min_keysize = AES_MIN_KEY_SIZE, |
| 2165 | .max_keysize = AES_MAX_KEY_SIZE, |
| 2166 | .ivsize = AES_BLOCK_SIZE, |
| 2167 | } |
| 2168 | }, |
| 2169 | .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| 2170 | DESC_HDR_SEL0_AESU | |
| 2171 | DESC_HDR_MODE0_AESU_CBC, |
| 2172 | }, |
Lee Nipper | d5e4aae | 2010-05-19 19:18:38 +1000 | [diff] [blame] | 2173 | { .type = CRYPTO_ALG_TYPE_ABLKCIPHER, |
| 2174 | .alg.crypto = { |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 2175 | .cra_name = "cbc(des3_ede)", |
| 2176 | .cra_driver_name = "cbc-3des-talitos", |
| 2177 | .cra_blocksize = DES3_EDE_BLOCK_SIZE, |
| 2178 | .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | |
| 2179 | CRYPTO_ALG_ASYNC, |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 2180 | .cra_ablkcipher = { |
Lee Nipper | 4de9d0b | 2009-03-29 15:52:32 +0800 | [diff] [blame] | 2181 | .min_keysize = DES3_EDE_KEY_SIZE, |
| 2182 | .max_keysize = DES3_EDE_KEY_SIZE, |
| 2183 | .ivsize = DES3_EDE_BLOCK_SIZE, |
| 2184 | } |
| 2185 | }, |
| 2186 | .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| 2187 | DESC_HDR_SEL0_DEU | |
| 2188 | DESC_HDR_MODE0_DEU_CBC | |
| 2189 | DESC_HDR_MODE0_DEU_3DES, |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 2190 | }, |
| 2191 | /* AHASH algorithms. */ |
| 2192 | { .type = CRYPTO_ALG_TYPE_AHASH, |
| 2193 | .alg.hash = { |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 2194 | .halg.digestsize = MD5_DIGEST_SIZE, |
| 2195 | .halg.base = { |
| 2196 | .cra_name = "md5", |
| 2197 | .cra_driver_name = "md5-talitos", |
| 2198 | .cra_blocksize = MD5_BLOCK_SIZE, |
| 2199 | .cra_flags = CRYPTO_ALG_TYPE_AHASH | |
| 2200 | CRYPTO_ALG_ASYNC, |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 2201 | } |
| 2202 | }, |
| 2203 | .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| 2204 | DESC_HDR_SEL0_MDEUA | |
| 2205 | DESC_HDR_MODE0_MDEU_MD5, |
| 2206 | }, |
| 2207 | { .type = CRYPTO_ALG_TYPE_AHASH, |
| 2208 | .alg.hash = { |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 2209 | .halg.digestsize = SHA1_DIGEST_SIZE, |
| 2210 | .halg.base = { |
| 2211 | .cra_name = "sha1", |
| 2212 | .cra_driver_name = "sha1-talitos", |
| 2213 | .cra_blocksize = SHA1_BLOCK_SIZE, |
| 2214 | .cra_flags = CRYPTO_ALG_TYPE_AHASH | |
| 2215 | CRYPTO_ALG_ASYNC, |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 2216 | } |
| 2217 | }, |
| 2218 | .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| 2219 | DESC_HDR_SEL0_MDEUA | |
| 2220 | DESC_HDR_MODE0_MDEU_SHA1, |
| 2221 | }, |
| 2222 | { .type = CRYPTO_ALG_TYPE_AHASH, |
| 2223 | .alg.hash = { |
Kim Phillips | 60f208d7 | 2010-05-19 19:21:53 +1000 | [diff] [blame] | 2224 | .halg.digestsize = SHA224_DIGEST_SIZE, |
| 2225 | .halg.base = { |
| 2226 | .cra_name = "sha224", |
| 2227 | .cra_driver_name = "sha224-talitos", |
| 2228 | .cra_blocksize = SHA224_BLOCK_SIZE, |
| 2229 | .cra_flags = CRYPTO_ALG_TYPE_AHASH | |
| 2230 | CRYPTO_ALG_ASYNC, |
Kim Phillips | 60f208d7 | 2010-05-19 19:21:53 +1000 | [diff] [blame] | 2231 | } |
| 2232 | }, |
| 2233 | .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| 2234 | DESC_HDR_SEL0_MDEUA | |
| 2235 | DESC_HDR_MODE0_MDEU_SHA224, |
| 2236 | }, |
| 2237 | { .type = CRYPTO_ALG_TYPE_AHASH, |
| 2238 | .alg.hash = { |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 2239 | .halg.digestsize = SHA256_DIGEST_SIZE, |
| 2240 | .halg.base = { |
| 2241 | .cra_name = "sha256", |
| 2242 | .cra_driver_name = "sha256-talitos", |
| 2243 | .cra_blocksize = SHA256_BLOCK_SIZE, |
| 2244 | .cra_flags = CRYPTO_ALG_TYPE_AHASH | |
| 2245 | CRYPTO_ALG_ASYNC, |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 2246 | } |
| 2247 | }, |
| 2248 | .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| 2249 | DESC_HDR_SEL0_MDEUA | |
| 2250 | DESC_HDR_MODE0_MDEU_SHA256, |
| 2251 | }, |
| 2252 | { .type = CRYPTO_ALG_TYPE_AHASH, |
| 2253 | .alg.hash = { |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 2254 | .halg.digestsize = SHA384_DIGEST_SIZE, |
| 2255 | .halg.base = { |
| 2256 | .cra_name = "sha384", |
| 2257 | .cra_driver_name = "sha384-talitos", |
| 2258 | .cra_blocksize = SHA384_BLOCK_SIZE, |
| 2259 | .cra_flags = CRYPTO_ALG_TYPE_AHASH | |
| 2260 | CRYPTO_ALG_ASYNC, |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 2261 | } |
| 2262 | }, |
| 2263 | .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| 2264 | DESC_HDR_SEL0_MDEUB | |
| 2265 | DESC_HDR_MODE0_MDEUB_SHA384, |
| 2266 | }, |
| 2267 | { .type = CRYPTO_ALG_TYPE_AHASH, |
| 2268 | .alg.hash = { |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 2269 | .halg.digestsize = SHA512_DIGEST_SIZE, |
| 2270 | .halg.base = { |
| 2271 | .cra_name = "sha512", |
| 2272 | .cra_driver_name = "sha512-talitos", |
| 2273 | .cra_blocksize = SHA512_BLOCK_SIZE, |
| 2274 | .cra_flags = CRYPTO_ALG_TYPE_AHASH | |
| 2275 | CRYPTO_ALG_ASYNC, |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 2276 | } |
| 2277 | }, |
| 2278 | .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| 2279 | DESC_HDR_SEL0_MDEUB | |
| 2280 | DESC_HDR_MODE0_MDEUB_SHA512, |
| 2281 | }, |
Lee Nipper | 79b3a41 | 2011-11-21 16:13:25 +0800 | [diff] [blame] | 2282 | { .type = CRYPTO_ALG_TYPE_AHASH, |
| 2283 | .alg.hash = { |
Lee Nipper | 79b3a41 | 2011-11-21 16:13:25 +0800 | [diff] [blame] | 2284 | .halg.digestsize = MD5_DIGEST_SIZE, |
| 2285 | .halg.base = { |
| 2286 | .cra_name = "hmac(md5)", |
| 2287 | .cra_driver_name = "hmac-md5-talitos", |
| 2288 | .cra_blocksize = MD5_BLOCK_SIZE, |
| 2289 | .cra_flags = CRYPTO_ALG_TYPE_AHASH | |
| 2290 | CRYPTO_ALG_ASYNC, |
Lee Nipper | 79b3a41 | 2011-11-21 16:13:25 +0800 | [diff] [blame] | 2291 | } |
| 2292 | }, |
| 2293 | .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| 2294 | DESC_HDR_SEL0_MDEUA | |
| 2295 | DESC_HDR_MODE0_MDEU_MD5, |
| 2296 | }, |
| 2297 | { .type = CRYPTO_ALG_TYPE_AHASH, |
| 2298 | .alg.hash = { |
Lee Nipper | 79b3a41 | 2011-11-21 16:13:25 +0800 | [diff] [blame] | 2299 | .halg.digestsize = SHA1_DIGEST_SIZE, |
| 2300 | .halg.base = { |
| 2301 | .cra_name = "hmac(sha1)", |
| 2302 | .cra_driver_name = "hmac-sha1-talitos", |
| 2303 | .cra_blocksize = SHA1_BLOCK_SIZE, |
| 2304 | .cra_flags = CRYPTO_ALG_TYPE_AHASH | |
| 2305 | CRYPTO_ALG_ASYNC, |
Lee Nipper | 79b3a41 | 2011-11-21 16:13:25 +0800 | [diff] [blame] | 2306 | } |
| 2307 | }, |
| 2308 | .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| 2309 | DESC_HDR_SEL0_MDEUA | |
| 2310 | DESC_HDR_MODE0_MDEU_SHA1, |
| 2311 | }, |
| 2312 | { .type = CRYPTO_ALG_TYPE_AHASH, |
| 2313 | .alg.hash = { |
Lee Nipper | 79b3a41 | 2011-11-21 16:13:25 +0800 | [diff] [blame] | 2314 | .halg.digestsize = SHA224_DIGEST_SIZE, |
| 2315 | .halg.base = { |
| 2316 | .cra_name = "hmac(sha224)", |
| 2317 | .cra_driver_name = "hmac-sha224-talitos", |
| 2318 | .cra_blocksize = SHA224_BLOCK_SIZE, |
| 2319 | .cra_flags = CRYPTO_ALG_TYPE_AHASH | |
| 2320 | CRYPTO_ALG_ASYNC, |
Lee Nipper | 79b3a41 | 2011-11-21 16:13:25 +0800 | [diff] [blame] | 2321 | } |
| 2322 | }, |
| 2323 | .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| 2324 | DESC_HDR_SEL0_MDEUA | |
| 2325 | DESC_HDR_MODE0_MDEU_SHA224, |
| 2326 | }, |
| 2327 | { .type = CRYPTO_ALG_TYPE_AHASH, |
| 2328 | .alg.hash = { |
Lee Nipper | 79b3a41 | 2011-11-21 16:13:25 +0800 | [diff] [blame] | 2329 | .halg.digestsize = SHA256_DIGEST_SIZE, |
| 2330 | .halg.base = { |
| 2331 | .cra_name = "hmac(sha256)", |
| 2332 | .cra_driver_name = "hmac-sha256-talitos", |
| 2333 | .cra_blocksize = SHA256_BLOCK_SIZE, |
| 2334 | .cra_flags = CRYPTO_ALG_TYPE_AHASH | |
| 2335 | CRYPTO_ALG_ASYNC, |
Lee Nipper | 79b3a41 | 2011-11-21 16:13:25 +0800 | [diff] [blame] | 2336 | } |
| 2337 | }, |
| 2338 | .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| 2339 | DESC_HDR_SEL0_MDEUA | |
| 2340 | DESC_HDR_MODE0_MDEU_SHA256, |
| 2341 | }, |
| 2342 | { .type = CRYPTO_ALG_TYPE_AHASH, |
| 2343 | .alg.hash = { |
Lee Nipper | 79b3a41 | 2011-11-21 16:13:25 +0800 | [diff] [blame] | 2344 | .halg.digestsize = SHA384_DIGEST_SIZE, |
| 2345 | .halg.base = { |
| 2346 | .cra_name = "hmac(sha384)", |
| 2347 | .cra_driver_name = "hmac-sha384-talitos", |
| 2348 | .cra_blocksize = SHA384_BLOCK_SIZE, |
| 2349 | .cra_flags = CRYPTO_ALG_TYPE_AHASH | |
| 2350 | CRYPTO_ALG_ASYNC, |
Lee Nipper | 79b3a41 | 2011-11-21 16:13:25 +0800 | [diff] [blame] | 2351 | } |
| 2352 | }, |
| 2353 | .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| 2354 | DESC_HDR_SEL0_MDEUB | |
| 2355 | DESC_HDR_MODE0_MDEUB_SHA384, |
| 2356 | }, |
| 2357 | { .type = CRYPTO_ALG_TYPE_AHASH, |
| 2358 | .alg.hash = { |
Lee Nipper | 79b3a41 | 2011-11-21 16:13:25 +0800 | [diff] [blame] | 2359 | .halg.digestsize = SHA512_DIGEST_SIZE, |
| 2360 | .halg.base = { |
| 2361 | .cra_name = "hmac(sha512)", |
| 2362 | .cra_driver_name = "hmac-sha512-talitos", |
| 2363 | .cra_blocksize = SHA512_BLOCK_SIZE, |
| 2364 | .cra_flags = CRYPTO_ALG_TYPE_AHASH | |
| 2365 | CRYPTO_ALG_ASYNC, |
Lee Nipper | 79b3a41 | 2011-11-21 16:13:25 +0800 | [diff] [blame] | 2366 | } |
| 2367 | }, |
| 2368 | .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| 2369 | DESC_HDR_SEL0_MDEUB | |
| 2370 | DESC_HDR_MODE0_MDEUB_SHA512, |
| 2371 | } |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2372 | }; |
| 2373 | |
| 2374 | struct talitos_crypto_alg { |
| 2375 | struct list_head entry; |
| 2376 | struct device *dev; |
Lee Nipper | acbf7c62 | 2010-05-19 19:19:33 +1000 | [diff] [blame] | 2377 | struct talitos_alg_template algt; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2378 | }; |
| 2379 | |
| 2380 | static int talitos_cra_init(struct crypto_tfm *tfm) |
| 2381 | { |
| 2382 | struct crypto_alg *alg = tfm->__crt_alg; |
Kim Phillips | 19bbbc6 | 2009-03-29 15:53:59 +0800 | [diff] [blame] | 2383 | struct talitos_crypto_alg *talitos_alg; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2384 | struct talitos_ctx *ctx = crypto_tfm_ctx(tfm); |
Kim Phillips | 5228f0f | 2011-07-15 11:21:38 +0800 | [diff] [blame] | 2385 | struct talitos_private *priv; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2386 | |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 2387 | if ((alg->cra_flags & CRYPTO_ALG_TYPE_MASK) == CRYPTO_ALG_TYPE_AHASH) |
| 2388 | talitos_alg = container_of(__crypto_ahash_alg(alg), |
| 2389 | struct talitos_crypto_alg, |
| 2390 | algt.alg.hash); |
| 2391 | else |
| 2392 | talitos_alg = container_of(alg, struct talitos_crypto_alg, |
| 2393 | algt.alg.crypto); |
Kim Phillips | 19bbbc6 | 2009-03-29 15:53:59 +0800 | [diff] [blame] | 2394 | |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2395 | /* update context with ptr to dev */ |
| 2396 | ctx->dev = talitos_alg->dev; |
Kim Phillips | 19bbbc6 | 2009-03-29 15:53:59 +0800 | [diff] [blame] | 2397 | |
Kim Phillips | 5228f0f | 2011-07-15 11:21:38 +0800 | [diff] [blame] | 2398 | /* assign SEC channel to tfm in round-robin fashion */ |
| 2399 | priv = dev_get_drvdata(ctx->dev); |
| 2400 | ctx->ch = atomic_inc_return(&priv->last_chan) & |
| 2401 | (priv->num_channels - 1); |
| 2402 | |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2403 | /* copy descriptor header template value */ |
Lee Nipper | acbf7c62 | 2010-05-19 19:19:33 +1000 | [diff] [blame] | 2404 | ctx->desc_hdr_template = talitos_alg->algt.desc_hdr_template; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2405 | |
Kim Phillips | 602dba5 | 2011-07-15 11:21:39 +0800 | [diff] [blame] | 2406 | /* select done notification */ |
| 2407 | ctx->desc_hdr_template |= DESC_HDR_DONE_NOTIFY; |
| 2408 | |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 2409 | return 0; |
| 2410 | } |
| 2411 | |
| 2412 | static int talitos_cra_init_aead(struct crypto_tfm *tfm) |
| 2413 | { |
| 2414 | struct talitos_ctx *ctx = crypto_tfm_ctx(tfm); |
| 2415 | |
| 2416 | talitos_cra_init(tfm); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2417 | |
| 2418 | /* random first IV */ |
Lee Nipper | 70bcaca | 2008-07-03 19:08:46 +0800 | [diff] [blame] | 2419 | get_random_bytes(ctx->iv, TALITOS_MAX_IV_LENGTH); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2420 | |
| 2421 | return 0; |
| 2422 | } |
| 2423 | |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 2424 | static int talitos_cra_init_ahash(struct crypto_tfm *tfm) |
| 2425 | { |
| 2426 | struct talitos_ctx *ctx = crypto_tfm_ctx(tfm); |
| 2427 | |
| 2428 | talitos_cra_init(tfm); |
| 2429 | |
| 2430 | ctx->keylen = 0; |
| 2431 | crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm), |
| 2432 | sizeof(struct talitos_ahash_req_ctx)); |
| 2433 | |
| 2434 | return 0; |
| 2435 | } |
| 2436 | |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2437 | /* |
| 2438 | * given the alg's descriptor header template, determine whether descriptor |
| 2439 | * type and primary/secondary execution units required match the hw |
| 2440 | * capabilities description provided in the device tree node. |
| 2441 | */ |
| 2442 | static int hw_supports(struct device *dev, __be32 desc_hdr_template) |
| 2443 | { |
| 2444 | struct talitos_private *priv = dev_get_drvdata(dev); |
| 2445 | int ret; |
| 2446 | |
| 2447 | ret = (1 << DESC_TYPE(desc_hdr_template) & priv->desc_types) && |
| 2448 | (1 << PRIMARY_EU(desc_hdr_template) & priv->exec_units); |
| 2449 | |
| 2450 | if (SECONDARY_EU(desc_hdr_template)) |
| 2451 | ret = ret && (1 << SECONDARY_EU(desc_hdr_template) |
| 2452 | & priv->exec_units); |
| 2453 | |
| 2454 | return ret; |
| 2455 | } |
| 2456 | |
Grant Likely | 2dc1158 | 2010-08-06 09:25:50 -0600 | [diff] [blame] | 2457 | static int talitos_remove(struct platform_device *ofdev) |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2458 | { |
| 2459 | struct device *dev = &ofdev->dev; |
| 2460 | struct talitos_private *priv = dev_get_drvdata(dev); |
| 2461 | struct talitos_crypto_alg *t_alg, *n; |
| 2462 | int i; |
| 2463 | |
| 2464 | list_for_each_entry_safe(t_alg, n, &priv->alg_list, entry) { |
Lee Nipper | acbf7c62 | 2010-05-19 19:19:33 +1000 | [diff] [blame] | 2465 | switch (t_alg->algt.type) { |
| 2466 | case CRYPTO_ALG_TYPE_ABLKCIPHER: |
| 2467 | case CRYPTO_ALG_TYPE_AEAD: |
| 2468 | crypto_unregister_alg(&t_alg->algt.alg.crypto); |
| 2469 | break; |
| 2470 | case CRYPTO_ALG_TYPE_AHASH: |
| 2471 | crypto_unregister_ahash(&t_alg->algt.alg.hash); |
| 2472 | break; |
| 2473 | } |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2474 | list_del(&t_alg->entry); |
| 2475 | kfree(t_alg); |
| 2476 | } |
| 2477 | |
| 2478 | if (hw_supports(dev, DESC_HDR_SEL0_RNG)) |
| 2479 | talitos_unregister_rng(dev); |
| 2480 | |
Kim Phillips | 4b992628 | 2009-08-13 11:50:38 +1000 | [diff] [blame] | 2481 | for (i = 0; i < priv->num_channels; i++) |
Kim Phillips | 0b79824 | 2010-09-23 15:56:08 +0800 | [diff] [blame] | 2482 | kfree(priv->chan[i].fifo); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2483 | |
Kim Phillips | 4b992628 | 2009-08-13 11:50:38 +1000 | [diff] [blame] | 2484 | kfree(priv->chan); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2485 | |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 2486 | for (i = 0; i < 2; i++) |
Kim Phillips | 2cdba3c | 2011-12-12 14:59:11 -0600 | [diff] [blame] | 2487 | if (priv->irq[i]) { |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 2488 | free_irq(priv->irq[i], dev); |
| 2489 | irq_dispose_mapping(priv->irq[i]); |
| 2490 | } |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2491 | |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 2492 | tasklet_kill(&priv->done_task[0]); |
Kim Phillips | 2cdba3c | 2011-12-12 14:59:11 -0600 | [diff] [blame] | 2493 | if (priv->irq[1]) |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 2494 | tasklet_kill(&priv->done_task[1]); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2495 | |
| 2496 | iounmap(priv->reg); |
| 2497 | |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2498 | kfree(priv); |
| 2499 | |
| 2500 | return 0; |
| 2501 | } |
| 2502 | |
| 2503 | static struct talitos_crypto_alg *talitos_alg_alloc(struct device *dev, |
| 2504 | struct talitos_alg_template |
| 2505 | *template) |
| 2506 | { |
Kim Phillips | 60f208d7 | 2010-05-19 19:21:53 +1000 | [diff] [blame] | 2507 | struct talitos_private *priv = dev_get_drvdata(dev); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2508 | struct talitos_crypto_alg *t_alg; |
| 2509 | struct crypto_alg *alg; |
| 2510 | |
| 2511 | t_alg = kzalloc(sizeof(struct talitos_crypto_alg), GFP_KERNEL); |
| 2512 | if (!t_alg) |
| 2513 | return ERR_PTR(-ENOMEM); |
| 2514 | |
Lee Nipper | acbf7c62 | 2010-05-19 19:19:33 +1000 | [diff] [blame] | 2515 | t_alg->algt = *template; |
| 2516 | |
| 2517 | switch (t_alg->algt.type) { |
| 2518 | case CRYPTO_ALG_TYPE_ABLKCIPHER: |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 2519 | alg = &t_alg->algt.alg.crypto; |
| 2520 | alg->cra_init = talitos_cra_init; |
Kim Phillips | d4cd328 | 2012-08-08 20:32:00 -0500 | [diff] [blame] | 2521 | alg->cra_type = &crypto_ablkcipher_type; |
Kim Phillips | b286e00 | 2012-08-08 20:33:34 -0500 | [diff] [blame] | 2522 | alg->cra_ablkcipher.setkey = ablkcipher_setkey; |
| 2523 | alg->cra_ablkcipher.encrypt = ablkcipher_encrypt; |
| 2524 | alg->cra_ablkcipher.decrypt = ablkcipher_decrypt; |
| 2525 | alg->cra_ablkcipher.geniv = "eseqiv"; |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 2526 | break; |
Lee Nipper | acbf7c62 | 2010-05-19 19:19:33 +1000 | [diff] [blame] | 2527 | case CRYPTO_ALG_TYPE_AEAD: |
| 2528 | alg = &t_alg->algt.alg.crypto; |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 2529 | alg->cra_init = talitos_cra_init_aead; |
Kim Phillips | d4cd328 | 2012-08-08 20:32:00 -0500 | [diff] [blame] | 2530 | alg->cra_type = &crypto_aead_type; |
Kim Phillips | b286e00 | 2012-08-08 20:33:34 -0500 | [diff] [blame] | 2531 | alg->cra_aead.setkey = aead_setkey; |
| 2532 | alg->cra_aead.setauthsize = aead_setauthsize; |
| 2533 | alg->cra_aead.encrypt = aead_encrypt; |
| 2534 | alg->cra_aead.decrypt = aead_decrypt; |
| 2535 | alg->cra_aead.givencrypt = aead_givencrypt; |
| 2536 | alg->cra_aead.geniv = "<built-in>"; |
Lee Nipper | acbf7c62 | 2010-05-19 19:19:33 +1000 | [diff] [blame] | 2537 | break; |
| 2538 | case CRYPTO_ALG_TYPE_AHASH: |
| 2539 | alg = &t_alg->algt.alg.hash.halg.base; |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 2540 | alg->cra_init = talitos_cra_init_ahash; |
Kim Phillips | d4cd328 | 2012-08-08 20:32:00 -0500 | [diff] [blame] | 2541 | alg->cra_type = &crypto_ahash_type; |
Kim Phillips | b286e00 | 2012-08-08 20:33:34 -0500 | [diff] [blame] | 2542 | t_alg->algt.alg.hash.init = ahash_init; |
| 2543 | t_alg->algt.alg.hash.update = ahash_update; |
| 2544 | t_alg->algt.alg.hash.final = ahash_final; |
| 2545 | t_alg->algt.alg.hash.finup = ahash_finup; |
| 2546 | t_alg->algt.alg.hash.digest = ahash_digest; |
| 2547 | t_alg->algt.alg.hash.setkey = ahash_setkey; |
| 2548 | |
Lee Nipper | 79b3a41 | 2011-11-21 16:13:25 +0800 | [diff] [blame] | 2549 | if (!(priv->features & TALITOS_FTR_HMAC_OK) && |
Kim Phillips | 0b2730d | 2011-12-12 14:59:10 -0600 | [diff] [blame] | 2550 | !strncmp(alg->cra_name, "hmac", 4)) { |
| 2551 | kfree(t_alg); |
Lee Nipper | 79b3a41 | 2011-11-21 16:13:25 +0800 | [diff] [blame] | 2552 | return ERR_PTR(-ENOTSUPP); |
Kim Phillips | 0b2730d | 2011-12-12 14:59:10 -0600 | [diff] [blame] | 2553 | } |
Kim Phillips | 60f208d7 | 2010-05-19 19:21:53 +1000 | [diff] [blame] | 2554 | if (!(priv->features & TALITOS_FTR_SHA224_HWINIT) && |
Lee Nipper | 79b3a41 | 2011-11-21 16:13:25 +0800 | [diff] [blame] | 2555 | (!strcmp(alg->cra_name, "sha224") || |
| 2556 | !strcmp(alg->cra_name, "hmac(sha224)"))) { |
Kim Phillips | 60f208d7 | 2010-05-19 19:21:53 +1000 | [diff] [blame] | 2557 | t_alg->algt.alg.hash.init = ahash_init_sha224_swinit; |
| 2558 | t_alg->algt.desc_hdr_template = |
| 2559 | DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| 2560 | DESC_HDR_SEL0_MDEUA | |
| 2561 | DESC_HDR_MODE0_MDEU_SHA256; |
| 2562 | } |
Lee Nipper | 497f2e6 | 2010-05-19 19:20:36 +1000 | [diff] [blame] | 2563 | break; |
Kim Phillips | 1d11911 | 2010-09-23 15:55:27 +0800 | [diff] [blame] | 2564 | default: |
| 2565 | dev_err(dev, "unknown algorithm type %d\n", t_alg->algt.type); |
| 2566 | return ERR_PTR(-EINVAL); |
Lee Nipper | acbf7c62 | 2010-05-19 19:19:33 +1000 | [diff] [blame] | 2567 | } |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2568 | |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2569 | alg->cra_module = THIS_MODULE; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2570 | alg->cra_priority = TALITOS_CRA_PRIORITY; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2571 | alg->cra_alignmask = 0; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2572 | alg->cra_ctxsize = sizeof(struct talitos_ctx); |
Nikos Mavrogiannopoulos | d912bb7 | 2011-11-01 13:39:56 +0100 | [diff] [blame] | 2573 | alg->cra_flags |= CRYPTO_ALG_KERN_DRIVER_ONLY; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2574 | |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2575 | t_alg->dev = dev; |
| 2576 | |
| 2577 | return t_alg; |
| 2578 | } |
| 2579 | |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 2580 | static int talitos_probe_irq(struct platform_device *ofdev) |
| 2581 | { |
| 2582 | struct device *dev = &ofdev->dev; |
| 2583 | struct device_node *np = ofdev->dev.of_node; |
| 2584 | struct talitos_private *priv = dev_get_drvdata(dev); |
| 2585 | int err; |
| 2586 | |
| 2587 | priv->irq[0] = irq_of_parse_and_map(np, 0); |
Kim Phillips | 2cdba3c | 2011-12-12 14:59:11 -0600 | [diff] [blame] | 2588 | if (!priv->irq[0]) { |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 2589 | dev_err(dev, "failed to map irq\n"); |
| 2590 | return -EINVAL; |
| 2591 | } |
| 2592 | |
| 2593 | priv->irq[1] = irq_of_parse_and_map(np, 1); |
| 2594 | |
| 2595 | /* get the primary irq line */ |
Kim Phillips | 2cdba3c | 2011-12-12 14:59:11 -0600 | [diff] [blame] | 2596 | if (!priv->irq[1]) { |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 2597 | err = request_irq(priv->irq[0], talitos_interrupt_4ch, 0, |
| 2598 | dev_driver_string(dev), dev); |
| 2599 | goto primary_out; |
| 2600 | } |
| 2601 | |
| 2602 | err = request_irq(priv->irq[0], talitos_interrupt_ch0_2, 0, |
| 2603 | dev_driver_string(dev), dev); |
| 2604 | if (err) |
| 2605 | goto primary_out; |
| 2606 | |
| 2607 | /* get the secondary irq line */ |
| 2608 | err = request_irq(priv->irq[1], talitos_interrupt_ch1_3, 0, |
| 2609 | dev_driver_string(dev), dev); |
| 2610 | if (err) { |
| 2611 | dev_err(dev, "failed to request secondary irq\n"); |
| 2612 | irq_dispose_mapping(priv->irq[1]); |
Kim Phillips | 2cdba3c | 2011-12-12 14:59:11 -0600 | [diff] [blame] | 2613 | priv->irq[1] = 0; |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 2614 | } |
| 2615 | |
| 2616 | return err; |
| 2617 | |
| 2618 | primary_out: |
| 2619 | if (err) { |
| 2620 | dev_err(dev, "failed to request primary irq\n"); |
| 2621 | irq_dispose_mapping(priv->irq[0]); |
Kim Phillips | 2cdba3c | 2011-12-12 14:59:11 -0600 | [diff] [blame] | 2622 | priv->irq[0] = 0; |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 2623 | } |
| 2624 | |
| 2625 | return err; |
| 2626 | } |
| 2627 | |
Grant Likely | 1c48a5c | 2011-02-17 02:43:24 -0700 | [diff] [blame] | 2628 | static int talitos_probe(struct platform_device *ofdev) |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2629 | { |
| 2630 | struct device *dev = &ofdev->dev; |
Grant Likely | 61c7a08 | 2010-04-13 16:12:29 -0700 | [diff] [blame] | 2631 | struct device_node *np = ofdev->dev.of_node; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2632 | struct talitos_private *priv; |
| 2633 | const unsigned int *prop; |
| 2634 | int i, err; |
| 2635 | |
| 2636 | priv = kzalloc(sizeof(struct talitos_private), GFP_KERNEL); |
| 2637 | if (!priv) |
| 2638 | return -ENOMEM; |
| 2639 | |
Kevin Hao | f3de9cb | 2014-01-28 20:17:23 +0800 | [diff] [blame] | 2640 | INIT_LIST_HEAD(&priv->alg_list); |
| 2641 | |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2642 | dev_set_drvdata(dev, priv); |
| 2643 | |
| 2644 | priv->ofdev = ofdev; |
| 2645 | |
Horia Geanta | 511d63c | 2012-03-30 17:49:53 +0300 | [diff] [blame] | 2646 | spin_lock_init(&priv->reg_lock); |
| 2647 | |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 2648 | err = talitos_probe_irq(ofdev); |
| 2649 | if (err) |
| 2650 | goto err_out; |
| 2651 | |
Kim Phillips | 2cdba3c | 2011-12-12 14:59:11 -0600 | [diff] [blame] | 2652 | if (!priv->irq[1]) { |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 2653 | tasklet_init(&priv->done_task[0], talitos_done_4ch, |
| 2654 | (unsigned long)dev); |
| 2655 | } else { |
| 2656 | tasklet_init(&priv->done_task[0], talitos_done_ch0_2, |
| 2657 | (unsigned long)dev); |
| 2658 | tasklet_init(&priv->done_task[1], talitos_done_ch1_3, |
| 2659 | (unsigned long)dev); |
| 2660 | } |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2661 | |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2662 | priv->reg = of_iomap(np, 0); |
| 2663 | if (!priv->reg) { |
| 2664 | dev_err(dev, "failed to of_iomap\n"); |
| 2665 | err = -ENOMEM; |
| 2666 | goto err_out; |
| 2667 | } |
| 2668 | |
| 2669 | /* get SEC version capabilities from device tree */ |
| 2670 | prop = of_get_property(np, "fsl,num-channels", NULL); |
| 2671 | if (prop) |
| 2672 | priv->num_channels = *prop; |
| 2673 | |
| 2674 | prop = of_get_property(np, "fsl,channel-fifo-len", NULL); |
| 2675 | if (prop) |
| 2676 | priv->chfifo_len = *prop; |
| 2677 | |
| 2678 | prop = of_get_property(np, "fsl,exec-units-mask", NULL); |
| 2679 | if (prop) |
| 2680 | priv->exec_units = *prop; |
| 2681 | |
| 2682 | prop = of_get_property(np, "fsl,descriptor-types-mask", NULL); |
| 2683 | if (prop) |
| 2684 | priv->desc_types = *prop; |
| 2685 | |
| 2686 | if (!is_power_of_2(priv->num_channels) || !priv->chfifo_len || |
| 2687 | !priv->exec_units || !priv->desc_types) { |
| 2688 | dev_err(dev, "invalid property data in device tree node\n"); |
| 2689 | err = -EINVAL; |
| 2690 | goto err_out; |
| 2691 | } |
| 2692 | |
Lee Nipper | f3c85bc | 2008-07-30 16:26:57 +0800 | [diff] [blame] | 2693 | if (of_device_is_compatible(np, "fsl,sec3.0")) |
| 2694 | priv->features |= TALITOS_FTR_SRC_LINK_TBL_LEN_INCLUDES_EXTENT; |
| 2695 | |
Kim Phillips | fe5720e | 2008-10-12 20:33:14 +0800 | [diff] [blame] | 2696 | if (of_device_is_compatible(np, "fsl,sec2.1")) |
Kim Phillips | 60f208d7 | 2010-05-19 19:21:53 +1000 | [diff] [blame] | 2697 | priv->features |= TALITOS_FTR_HW_AUTH_CHECK | |
Lee Nipper | 79b3a41 | 2011-11-21 16:13:25 +0800 | [diff] [blame] | 2698 | TALITOS_FTR_SHA224_HWINIT | |
| 2699 | TALITOS_FTR_HMAC_OK; |
Kim Phillips | fe5720e | 2008-10-12 20:33:14 +0800 | [diff] [blame] | 2700 | |
Kim Phillips | 4b992628 | 2009-08-13 11:50:38 +1000 | [diff] [blame] | 2701 | priv->chan = kzalloc(sizeof(struct talitos_channel) * |
| 2702 | priv->num_channels, GFP_KERNEL); |
| 2703 | if (!priv->chan) { |
| 2704 | dev_err(dev, "failed to allocate channel management space\n"); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2705 | err = -ENOMEM; |
| 2706 | goto err_out; |
| 2707 | } |
| 2708 | |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 2709 | for (i = 0; i < priv->num_channels; i++) { |
| 2710 | priv->chan[i].reg = priv->reg + TALITOS_CH_STRIDE * (i + 1); |
Kim Phillips | 2cdba3c | 2011-12-12 14:59:11 -0600 | [diff] [blame] | 2711 | if (!priv->irq[1] || !(i & 1)) |
Kim Phillips | c3e337f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 2712 | priv->chan[i].reg += TALITOS_CH_BASE_OFFSET; |
| 2713 | } |
Kim Phillips | ad42d5f | 2011-11-21 16:13:27 +0800 | [diff] [blame] | 2714 | |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2715 | for (i = 0; i < priv->num_channels; i++) { |
Kim Phillips | 4b992628 | 2009-08-13 11:50:38 +1000 | [diff] [blame] | 2716 | spin_lock_init(&priv->chan[i].head_lock); |
| 2717 | spin_lock_init(&priv->chan[i].tail_lock); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2718 | } |
| 2719 | |
| 2720 | priv->fifo_len = roundup_pow_of_two(priv->chfifo_len); |
| 2721 | |
| 2722 | for (i = 0; i < priv->num_channels; i++) { |
Kim Phillips | 4b992628 | 2009-08-13 11:50:38 +1000 | [diff] [blame] | 2723 | priv->chan[i].fifo = kzalloc(sizeof(struct talitos_request) * |
| 2724 | priv->fifo_len, GFP_KERNEL); |
| 2725 | if (!priv->chan[i].fifo) { |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2726 | dev_err(dev, "failed to allocate request fifo %d\n", i); |
| 2727 | err = -ENOMEM; |
| 2728 | goto err_out; |
| 2729 | } |
| 2730 | } |
| 2731 | |
Kim Phillips | ec6644d | 2008-07-17 20:16:40 +0800 | [diff] [blame] | 2732 | for (i = 0; i < priv->num_channels; i++) |
Kim Phillips | 4b992628 | 2009-08-13 11:50:38 +1000 | [diff] [blame] | 2733 | atomic_set(&priv->chan[i].submit_count, |
| 2734 | -(priv->chfifo_len - 1)); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2735 | |
Kim Phillips | 81eb024 | 2009-08-13 11:51:51 +1000 | [diff] [blame] | 2736 | dma_set_mask(dev, DMA_BIT_MASK(36)); |
| 2737 | |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2738 | /* reset and initialize the h/w */ |
| 2739 | err = init_device(dev); |
| 2740 | if (err) { |
| 2741 | dev_err(dev, "failed to initialize device\n"); |
| 2742 | goto err_out; |
| 2743 | } |
| 2744 | |
| 2745 | /* register the RNG, if available */ |
| 2746 | if (hw_supports(dev, DESC_HDR_SEL0_RNG)) { |
| 2747 | err = talitos_register_rng(dev); |
| 2748 | if (err) { |
| 2749 | dev_err(dev, "failed to register hwrng: %d\n", err); |
| 2750 | goto err_out; |
| 2751 | } else |
| 2752 | dev_info(dev, "hwrng\n"); |
| 2753 | } |
| 2754 | |
| 2755 | /* register crypto algorithms the device supports */ |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2756 | for (i = 0; i < ARRAY_SIZE(driver_algs); i++) { |
| 2757 | if (hw_supports(dev, driver_algs[i].desc_hdr_template)) { |
| 2758 | struct talitos_crypto_alg *t_alg; |
Lee Nipper | acbf7c62 | 2010-05-19 19:19:33 +1000 | [diff] [blame] | 2759 | char *name = NULL; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2760 | |
| 2761 | t_alg = talitos_alg_alloc(dev, &driver_algs[i]); |
| 2762 | if (IS_ERR(t_alg)) { |
| 2763 | err = PTR_ERR(t_alg); |
Kim Phillips | 0b2730d | 2011-12-12 14:59:10 -0600 | [diff] [blame] | 2764 | if (err == -ENOTSUPP) |
Lee Nipper | 79b3a41 | 2011-11-21 16:13:25 +0800 | [diff] [blame] | 2765 | continue; |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2766 | goto err_out; |
| 2767 | } |
| 2768 | |
Lee Nipper | acbf7c62 | 2010-05-19 19:19:33 +1000 | [diff] [blame] | 2769 | switch (t_alg->algt.type) { |
| 2770 | case CRYPTO_ALG_TYPE_ABLKCIPHER: |
| 2771 | case CRYPTO_ALG_TYPE_AEAD: |
| 2772 | err = crypto_register_alg( |
| 2773 | &t_alg->algt.alg.crypto); |
| 2774 | name = t_alg->algt.alg.crypto.cra_driver_name; |
| 2775 | break; |
| 2776 | case CRYPTO_ALG_TYPE_AHASH: |
| 2777 | err = crypto_register_ahash( |
| 2778 | &t_alg->algt.alg.hash); |
| 2779 | name = |
| 2780 | t_alg->algt.alg.hash.halg.base.cra_driver_name; |
| 2781 | break; |
| 2782 | } |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2783 | if (err) { |
| 2784 | dev_err(dev, "%s alg registration failed\n", |
Lee Nipper | acbf7c62 | 2010-05-19 19:19:33 +1000 | [diff] [blame] | 2785 | name); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2786 | kfree(t_alg); |
Horia Geanta | 991155b | 2013-03-20 16:31:38 +0200 | [diff] [blame] | 2787 | } else |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2788 | list_add_tail(&t_alg->entry, &priv->alg_list); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2789 | } |
| 2790 | } |
Kim Phillips | 5b859b6e | 2011-11-21 16:13:26 +0800 | [diff] [blame] | 2791 | if (!list_empty(&priv->alg_list)) |
| 2792 | dev_info(dev, "%s algorithms registered in /proc/crypto\n", |
| 2793 | (char *)of_get_property(np, "compatible", NULL)); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2794 | |
| 2795 | return 0; |
| 2796 | |
| 2797 | err_out: |
| 2798 | talitos_remove(ofdev); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2799 | |
| 2800 | return err; |
| 2801 | } |
| 2802 | |
Márton Németh | 6c3f975 | 2010-01-17 21:54:01 +1100 | [diff] [blame] | 2803 | static const struct of_device_id talitos_match[] = { |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2804 | { |
| 2805 | .compatible = "fsl,sec2.0", |
| 2806 | }, |
| 2807 | {}, |
| 2808 | }; |
| 2809 | MODULE_DEVICE_TABLE(of, talitos_match); |
| 2810 | |
Grant Likely | 1c48a5c | 2011-02-17 02:43:24 -0700 | [diff] [blame] | 2811 | static struct platform_driver talitos_driver = { |
Grant Likely | 4018294 | 2010-04-13 16:13:02 -0700 | [diff] [blame] | 2812 | .driver = { |
| 2813 | .name = "talitos", |
Grant Likely | 4018294 | 2010-04-13 16:13:02 -0700 | [diff] [blame] | 2814 | .of_match_table = talitos_match, |
| 2815 | }, |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2816 | .probe = talitos_probe, |
Al Viro | 596f103 | 2008-11-22 17:34:24 +0000 | [diff] [blame] | 2817 | .remove = talitos_remove, |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2818 | }; |
| 2819 | |
Axel Lin | 741e8c2 | 2011-11-26 21:26:19 +0800 | [diff] [blame] | 2820 | module_platform_driver(talitos_driver); |
Kim Phillips | 9c4a796 | 2008-06-23 19:50:15 +0800 | [diff] [blame] | 2821 | |
| 2822 | MODULE_LICENSE("GPL"); |
| 2823 | MODULE_AUTHOR("Kim Phillips <kim.phillips@freescale.com>"); |
| 2824 | MODULE_DESCRIPTION("Freescale integrated security engine (SEC) driver"); |