| /* |
| * talitos - Freescale Integrated Security Engine (SEC) device driver |
| * |
| * Copyright (c) 2008-2011 Freescale Semiconductor, Inc. |
| * |
| * Scatterlist Crypto API glue code copied from files with the following: |
| * Copyright (c) 2006-2007 Herbert Xu <herbert@gondor.apana.org.au> |
| * |
| * Crypto algorithm registration code copied from hifn driver: |
| * 2007+ Copyright (c) Evgeniy Polyakov <johnpol@2ka.mipt.ru> |
| * All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/mod_devicetable.h> |
| #include <linux/device.h> |
| #include <linux/interrupt.h> |
| #include <linux/crypto.h> |
| #include <linux/hw_random.h> |
| #include <linux/of_address.h> |
| #include <linux/of_irq.h> |
| #include <linux/of_platform.h> |
| #include <linux/dma-mapping.h> |
| #include <linux/io.h> |
| #include <linux/spinlock.h> |
| #include <linux/rtnetlink.h> |
| #include <linux/slab.h> |
| |
| #include <crypto/algapi.h> |
| #include <crypto/aes.h> |
| #include <crypto/des.h> |
| #include <crypto/sha.h> |
| #include <crypto/md5.h> |
| #include <crypto/internal/aead.h> |
| #include <crypto/authenc.h> |
| #include <crypto/skcipher.h> |
| #include <crypto/hash.h> |
| #include <crypto/internal/hash.h> |
| #include <crypto/scatterwalk.h> |
| |
| #include "talitos.h" |
| |
| static void to_talitos_ptr(struct talitos_ptr *ptr, dma_addr_t dma_addr, |
| bool is_sec1) |
| { |
| ptr->ptr = cpu_to_be32(lower_32_bits(dma_addr)); |
| if (!is_sec1) |
| ptr->eptr = upper_32_bits(dma_addr); |
| } |
| |
| static void copy_talitos_ptr(struct talitos_ptr *dst_ptr, |
| struct talitos_ptr *src_ptr, bool is_sec1) |
| { |
| dst_ptr->ptr = src_ptr->ptr; |
| if (!is_sec1) |
| dst_ptr->eptr = src_ptr->eptr; |
| } |
| |
| static void to_talitos_ptr_len(struct talitos_ptr *ptr, unsigned int len, |
| bool is_sec1) |
| { |
| if (is_sec1) { |
| ptr->res = 0; |
| ptr->len1 = cpu_to_be16(len); |
| } else { |
| ptr->len = cpu_to_be16(len); |
| } |
| } |
| |
| static unsigned short from_talitos_ptr_len(struct talitos_ptr *ptr, |
| bool is_sec1) |
| { |
| if (is_sec1) |
| return be16_to_cpu(ptr->len1); |
| else |
| return be16_to_cpu(ptr->len); |
| } |
| |
| static void to_talitos_ptr_ext_set(struct talitos_ptr *ptr, u8 val, |
| bool is_sec1) |
| { |
| if (!is_sec1) |
| ptr->j_extent = val; |
| } |
| |
| static void to_talitos_ptr_ext_or(struct talitos_ptr *ptr, u8 val, bool is_sec1) |
| { |
| if (!is_sec1) |
| ptr->j_extent |= val; |
| } |
| |
| /* |
| * map virtual single (contiguous) pointer to h/w descriptor pointer |
| */ |
| static void map_single_talitos_ptr(struct device *dev, |
| struct talitos_ptr *ptr, |
| unsigned int len, void *data, |
| enum dma_data_direction dir) |
| { |
| dma_addr_t dma_addr = dma_map_single(dev, data, len, dir); |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| bool is_sec1 = has_ftr_sec1(priv); |
| |
| to_talitos_ptr_len(ptr, len, is_sec1); |
| to_talitos_ptr(ptr, dma_addr, is_sec1); |
| to_talitos_ptr_ext_set(ptr, 0, is_sec1); |
| } |
| |
| /* |
| * unmap bus single (contiguous) h/w descriptor pointer |
| */ |
| static void unmap_single_talitos_ptr(struct device *dev, |
| struct talitos_ptr *ptr, |
| enum dma_data_direction dir) |
| { |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| bool is_sec1 = has_ftr_sec1(priv); |
| |
| dma_unmap_single(dev, be32_to_cpu(ptr->ptr), |
| from_talitos_ptr_len(ptr, is_sec1), dir); |
| } |
| |
| static int reset_channel(struct device *dev, int ch) |
| { |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| unsigned int timeout = TALITOS_TIMEOUT; |
| bool is_sec1 = has_ftr_sec1(priv); |
| |
| if (is_sec1) { |
| setbits32(priv->chan[ch].reg + TALITOS_CCCR_LO, |
| TALITOS1_CCCR_LO_RESET); |
| |
| while ((in_be32(priv->chan[ch].reg + TALITOS_CCCR_LO) & |
| TALITOS1_CCCR_LO_RESET) && --timeout) |
| cpu_relax(); |
| } else { |
| setbits32(priv->chan[ch].reg + TALITOS_CCCR, |
| TALITOS2_CCCR_RESET); |
| |
| while ((in_be32(priv->chan[ch].reg + TALITOS_CCCR) & |
| TALITOS2_CCCR_RESET) && --timeout) |
| cpu_relax(); |
| } |
| |
| if (timeout == 0) { |
| dev_err(dev, "failed to reset channel %d\n", ch); |
| return -EIO; |
| } |
| |
| /* set 36-bit addressing, done writeback enable and done IRQ enable */ |
| setbits32(priv->chan[ch].reg + TALITOS_CCCR_LO, TALITOS_CCCR_LO_EAE | |
| TALITOS_CCCR_LO_CDWE | TALITOS_CCCR_LO_CDIE); |
| |
| /* and ICCR writeback, if available */ |
| if (priv->features & TALITOS_FTR_HW_AUTH_CHECK) |
| setbits32(priv->chan[ch].reg + TALITOS_CCCR_LO, |
| TALITOS_CCCR_LO_IWSE); |
| |
| return 0; |
| } |
| |
| static int reset_device(struct device *dev) |
| { |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| unsigned int timeout = TALITOS_TIMEOUT; |
| bool is_sec1 = has_ftr_sec1(priv); |
| u32 mcr = is_sec1 ? TALITOS1_MCR_SWR : TALITOS2_MCR_SWR; |
| |
| setbits32(priv->reg + TALITOS_MCR, mcr); |
| |
| while ((in_be32(priv->reg + TALITOS_MCR) & mcr) |
| && --timeout) |
| cpu_relax(); |
| |
| if (priv->irq[1]) { |
| mcr = TALITOS_MCR_RCA1 | TALITOS_MCR_RCA3; |
| setbits32(priv->reg + TALITOS_MCR, mcr); |
| } |
| |
| if (timeout == 0) { |
| dev_err(dev, "failed to reset device\n"); |
| return -EIO; |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * Reset and initialize the device |
| */ |
| static int init_device(struct device *dev) |
| { |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| int ch, err; |
| bool is_sec1 = has_ftr_sec1(priv); |
| |
| /* |
| * Master reset |
| * errata documentation: warning: certain SEC interrupts |
| * are not fully cleared by writing the MCR:SWR bit, |
| * set bit twice to completely reset |
| */ |
| err = reset_device(dev); |
| if (err) |
| return err; |
| |
| err = reset_device(dev); |
| if (err) |
| return err; |
| |
| /* reset channels */ |
| for (ch = 0; ch < priv->num_channels; ch++) { |
| err = reset_channel(dev, ch); |
| if (err) |
| return err; |
| } |
| |
| /* enable channel done and error interrupts */ |
| if (is_sec1) { |
| clrbits32(priv->reg + TALITOS_IMR, TALITOS1_IMR_INIT); |
| clrbits32(priv->reg + TALITOS_IMR_LO, TALITOS1_IMR_LO_INIT); |
| /* disable parity error check in DEU (erroneous? test vect.) */ |
| setbits32(priv->reg_deu + TALITOS_EUICR, TALITOS1_DEUICR_KPE); |
| } else { |
| setbits32(priv->reg + TALITOS_IMR, TALITOS2_IMR_INIT); |
| setbits32(priv->reg + TALITOS_IMR_LO, TALITOS2_IMR_LO_INIT); |
| } |
| |
| /* disable integrity check error interrupts (use writeback instead) */ |
| if (priv->features & TALITOS_FTR_HW_AUTH_CHECK) |
| setbits32(priv->reg_mdeu + TALITOS_EUICR_LO, |
| TALITOS_MDEUICR_LO_ICE); |
| |
| return 0; |
| } |
| |
| /** |
| * talitos_submit - submits a descriptor to the device for processing |
| * @dev: the SEC device to be used |
| * @ch: the SEC device channel to be used |
| * @desc: the descriptor to be processed by the device |
| * @callback: whom to call when processing is complete |
| * @context: a handle for use by caller (optional) |
| * |
| * desc must contain valid dma-mapped (bus physical) address pointers. |
| * callback must check err and feedback in descriptor header |
| * for device processing status. |
| */ |
| int talitos_submit(struct device *dev, int ch, struct talitos_desc *desc, |
| void (*callback)(struct device *dev, |
| struct talitos_desc *desc, |
| void *context, int error), |
| void *context) |
| { |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| struct talitos_request *request; |
| unsigned long flags; |
| int head; |
| bool is_sec1 = has_ftr_sec1(priv); |
| |
| spin_lock_irqsave(&priv->chan[ch].head_lock, flags); |
| |
| if (!atomic_inc_not_zero(&priv->chan[ch].submit_count)) { |
| /* h/w fifo is full */ |
| spin_unlock_irqrestore(&priv->chan[ch].head_lock, flags); |
| return -EAGAIN; |
| } |
| |
| head = priv->chan[ch].head; |
| request = &priv->chan[ch].fifo[head]; |
| |
| /* map descriptor and save caller data */ |
| if (is_sec1) { |
| desc->hdr1 = desc->hdr; |
| desc->next_desc = 0; |
| request->dma_desc = dma_map_single(dev, &desc->hdr1, |
| TALITOS_DESC_SIZE, |
| DMA_BIDIRECTIONAL); |
| } else { |
| request->dma_desc = dma_map_single(dev, desc, |
| TALITOS_DESC_SIZE, |
| DMA_BIDIRECTIONAL); |
| } |
| request->callback = callback; |
| request->context = context; |
| |
| /* increment fifo head */ |
| priv->chan[ch].head = (priv->chan[ch].head + 1) & (priv->fifo_len - 1); |
| |
| smp_wmb(); |
| request->desc = desc; |
| |
| /* GO! */ |
| wmb(); |
| out_be32(priv->chan[ch].reg + TALITOS_FF, |
| upper_32_bits(request->dma_desc)); |
| out_be32(priv->chan[ch].reg + TALITOS_FF_LO, |
| lower_32_bits(request->dma_desc)); |
| |
| spin_unlock_irqrestore(&priv->chan[ch].head_lock, flags); |
| |
| return -EINPROGRESS; |
| } |
| EXPORT_SYMBOL(talitos_submit); |
| |
| /* |
| * process what was done, notify callback of error if not |
| */ |
| static void flush_channel(struct device *dev, int ch, int error, int reset_ch) |
| { |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| struct talitos_request *request, saved_req; |
| unsigned long flags; |
| int tail, status; |
| bool is_sec1 = has_ftr_sec1(priv); |
| |
| spin_lock_irqsave(&priv->chan[ch].tail_lock, flags); |
| |
| tail = priv->chan[ch].tail; |
| while (priv->chan[ch].fifo[tail].desc) { |
| __be32 hdr; |
| |
| request = &priv->chan[ch].fifo[tail]; |
| |
| /* descriptors with their done bits set don't get the error */ |
| rmb(); |
| hdr = is_sec1 ? request->desc->hdr1 : request->desc->hdr; |
| |
| if ((hdr & DESC_HDR_DONE) == DESC_HDR_DONE) |
| status = 0; |
| else |
| if (!error) |
| break; |
| else |
| status = error; |
| |
| dma_unmap_single(dev, request->dma_desc, |
| TALITOS_DESC_SIZE, |
| DMA_BIDIRECTIONAL); |
| |
| /* copy entries so we can call callback outside lock */ |
| saved_req.desc = request->desc; |
| saved_req.callback = request->callback; |
| saved_req.context = request->context; |
| |
| /* release request entry in fifo */ |
| smp_wmb(); |
| request->desc = NULL; |
| |
| /* increment fifo tail */ |
| priv->chan[ch].tail = (tail + 1) & (priv->fifo_len - 1); |
| |
| spin_unlock_irqrestore(&priv->chan[ch].tail_lock, flags); |
| |
| atomic_dec(&priv->chan[ch].submit_count); |
| |
| saved_req.callback(dev, saved_req.desc, saved_req.context, |
| status); |
| /* channel may resume processing in single desc error case */ |
| if (error && !reset_ch && status == error) |
| return; |
| spin_lock_irqsave(&priv->chan[ch].tail_lock, flags); |
| tail = priv->chan[ch].tail; |
| } |
| |
| spin_unlock_irqrestore(&priv->chan[ch].tail_lock, flags); |
| } |
| |
| /* |
| * process completed requests for channels that have done status |
| */ |
| #define DEF_TALITOS1_DONE(name, ch_done_mask) \ |
| static void talitos1_done_##name(unsigned long data) \ |
| { \ |
| struct device *dev = (struct device *)data; \ |
| struct talitos_private *priv = dev_get_drvdata(dev); \ |
| unsigned long flags; \ |
| \ |
| if (ch_done_mask & 0x10000000) \ |
| flush_channel(dev, 0, 0, 0); \ |
| if (priv->num_channels == 1) \ |
| goto out; \ |
| if (ch_done_mask & 0x40000000) \ |
| flush_channel(dev, 1, 0, 0); \ |
| if (ch_done_mask & 0x00010000) \ |
| flush_channel(dev, 2, 0, 0); \ |
| if (ch_done_mask & 0x00040000) \ |
| flush_channel(dev, 3, 0, 0); \ |
| \ |
| out: \ |
| /* At this point, all completed channels have been processed */ \ |
| /* Unmask done interrupts for channels completed later on. */ \ |
| spin_lock_irqsave(&priv->reg_lock, flags); \ |
| clrbits32(priv->reg + TALITOS_IMR, ch_done_mask); \ |
| clrbits32(priv->reg + TALITOS_IMR_LO, TALITOS1_IMR_LO_INIT); \ |
| spin_unlock_irqrestore(&priv->reg_lock, flags); \ |
| } |
| |
| DEF_TALITOS1_DONE(4ch, TALITOS1_ISR_4CHDONE) |
| |
| #define DEF_TALITOS2_DONE(name, ch_done_mask) \ |
| static void talitos2_done_##name(unsigned long data) \ |
| { \ |
| struct device *dev = (struct device *)data; \ |
| struct talitos_private *priv = dev_get_drvdata(dev); \ |
| unsigned long flags; \ |
| \ |
| if (ch_done_mask & 1) \ |
| flush_channel(dev, 0, 0, 0); \ |
| if (priv->num_channels == 1) \ |
| goto out; \ |
| if (ch_done_mask & (1 << 2)) \ |
| flush_channel(dev, 1, 0, 0); \ |
| if (ch_done_mask & (1 << 4)) \ |
| flush_channel(dev, 2, 0, 0); \ |
| if (ch_done_mask & (1 << 6)) \ |
| flush_channel(dev, 3, 0, 0); \ |
| \ |
| out: \ |
| /* At this point, all completed channels have been processed */ \ |
| /* Unmask done interrupts for channels completed later on. */ \ |
| spin_lock_irqsave(&priv->reg_lock, flags); \ |
| setbits32(priv->reg + TALITOS_IMR, ch_done_mask); \ |
| setbits32(priv->reg + TALITOS_IMR_LO, TALITOS2_IMR_LO_INIT); \ |
| spin_unlock_irqrestore(&priv->reg_lock, flags); \ |
| } |
| |
| DEF_TALITOS2_DONE(4ch, TALITOS2_ISR_4CHDONE) |
| DEF_TALITOS2_DONE(ch0_2, TALITOS2_ISR_CH_0_2_DONE) |
| DEF_TALITOS2_DONE(ch1_3, TALITOS2_ISR_CH_1_3_DONE) |
| |
| /* |
| * locate current (offending) descriptor |
| */ |
| static u32 current_desc_hdr(struct device *dev, int ch) |
| { |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| int tail, iter; |
| dma_addr_t cur_desc; |
| |
| cur_desc = ((u64)in_be32(priv->chan[ch].reg + TALITOS_CDPR)) << 32; |
| cur_desc |= in_be32(priv->chan[ch].reg + TALITOS_CDPR_LO); |
| |
| if (!cur_desc) { |
| dev_err(dev, "CDPR is NULL, giving up search for offending descriptor\n"); |
| return 0; |
| } |
| |
| tail = priv->chan[ch].tail; |
| |
| iter = tail; |
| while (priv->chan[ch].fifo[iter].dma_desc != cur_desc) { |
| iter = (iter + 1) & (priv->fifo_len - 1); |
| if (iter == tail) { |
| dev_err(dev, "couldn't locate current descriptor\n"); |
| return 0; |
| } |
| } |
| |
| return priv->chan[ch].fifo[iter].desc->hdr; |
| } |
| |
| /* |
| * user diagnostics; report root cause of error based on execution unit status |
| */ |
| static void report_eu_error(struct device *dev, int ch, u32 desc_hdr) |
| { |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| int i; |
| |
| if (!desc_hdr) |
| desc_hdr = in_be32(priv->chan[ch].reg + TALITOS_DESCBUF); |
| |
| switch (desc_hdr & DESC_HDR_SEL0_MASK) { |
| case DESC_HDR_SEL0_AFEU: |
| dev_err(dev, "AFEUISR 0x%08x_%08x\n", |
| in_be32(priv->reg_afeu + TALITOS_EUISR), |
| in_be32(priv->reg_afeu + TALITOS_EUISR_LO)); |
| break; |
| case DESC_HDR_SEL0_DEU: |
| dev_err(dev, "DEUISR 0x%08x_%08x\n", |
| in_be32(priv->reg_deu + TALITOS_EUISR), |
| in_be32(priv->reg_deu + TALITOS_EUISR_LO)); |
| break; |
| case DESC_HDR_SEL0_MDEUA: |
| case DESC_HDR_SEL0_MDEUB: |
| dev_err(dev, "MDEUISR 0x%08x_%08x\n", |
| in_be32(priv->reg_mdeu + TALITOS_EUISR), |
| in_be32(priv->reg_mdeu + TALITOS_EUISR_LO)); |
| break; |
| case DESC_HDR_SEL0_RNG: |
| dev_err(dev, "RNGUISR 0x%08x_%08x\n", |
| in_be32(priv->reg_rngu + TALITOS_ISR), |
| in_be32(priv->reg_rngu + TALITOS_ISR_LO)); |
| break; |
| case DESC_HDR_SEL0_PKEU: |
| dev_err(dev, "PKEUISR 0x%08x_%08x\n", |
| in_be32(priv->reg_pkeu + TALITOS_EUISR), |
| in_be32(priv->reg_pkeu + TALITOS_EUISR_LO)); |
| break; |
| case DESC_HDR_SEL0_AESU: |
| dev_err(dev, "AESUISR 0x%08x_%08x\n", |
| in_be32(priv->reg_aesu + TALITOS_EUISR), |
| in_be32(priv->reg_aesu + TALITOS_EUISR_LO)); |
| break; |
| case DESC_HDR_SEL0_CRCU: |
| dev_err(dev, "CRCUISR 0x%08x_%08x\n", |
| in_be32(priv->reg_crcu + TALITOS_EUISR), |
| in_be32(priv->reg_crcu + TALITOS_EUISR_LO)); |
| break; |
| case DESC_HDR_SEL0_KEU: |
| dev_err(dev, "KEUISR 0x%08x_%08x\n", |
| in_be32(priv->reg_pkeu + TALITOS_EUISR), |
| in_be32(priv->reg_pkeu + TALITOS_EUISR_LO)); |
| break; |
| } |
| |
| switch (desc_hdr & DESC_HDR_SEL1_MASK) { |
| case DESC_HDR_SEL1_MDEUA: |
| case DESC_HDR_SEL1_MDEUB: |
| dev_err(dev, "MDEUISR 0x%08x_%08x\n", |
| in_be32(priv->reg_mdeu + TALITOS_EUISR), |
| in_be32(priv->reg_mdeu + TALITOS_EUISR_LO)); |
| break; |
| case DESC_HDR_SEL1_CRCU: |
| dev_err(dev, "CRCUISR 0x%08x_%08x\n", |
| in_be32(priv->reg_crcu + TALITOS_EUISR), |
| in_be32(priv->reg_crcu + TALITOS_EUISR_LO)); |
| break; |
| } |
| |
| for (i = 0; i < 8; i++) |
| dev_err(dev, "DESCBUF 0x%08x_%08x\n", |
| in_be32(priv->chan[ch].reg + TALITOS_DESCBUF + 8*i), |
| in_be32(priv->chan[ch].reg + TALITOS_DESCBUF_LO + 8*i)); |
| } |
| |
| /* |
| * recover from error interrupts |
| */ |
| static void talitos_error(struct device *dev, u32 isr, u32 isr_lo) |
| { |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| unsigned int timeout = TALITOS_TIMEOUT; |
| int ch, error, reset_dev = 0; |
| u32 v_lo; |
| bool is_sec1 = has_ftr_sec1(priv); |
| int reset_ch = is_sec1 ? 1 : 0; /* only SEC2 supports continuation */ |
| |
| for (ch = 0; ch < priv->num_channels; ch++) { |
| /* skip channels without errors */ |
| if (is_sec1) { |
| /* bits 29, 31, 17, 19 */ |
| if (!(isr & (1 << (29 + (ch & 1) * 2 - (ch & 2) * 6)))) |
| continue; |
| } else { |
| if (!(isr & (1 << (ch * 2 + 1)))) |
| continue; |
| } |
| |
| error = -EINVAL; |
| |
| v_lo = in_be32(priv->chan[ch].reg + TALITOS_CCPSR_LO); |
| |
| if (v_lo & TALITOS_CCPSR_LO_DOF) { |
| dev_err(dev, "double fetch fifo overflow error\n"); |
| error = -EAGAIN; |
| reset_ch = 1; |
| } |
| if (v_lo & TALITOS_CCPSR_LO_SOF) { |
| /* h/w dropped descriptor */ |
| dev_err(dev, "single fetch fifo overflow error\n"); |
| error = -EAGAIN; |
| } |
| if (v_lo & TALITOS_CCPSR_LO_MDTE) |
| dev_err(dev, "master data transfer error\n"); |
| if (v_lo & TALITOS_CCPSR_LO_SGDLZ) |
| dev_err(dev, is_sec1 ? "pointer not complete error\n" |
| : "s/g data length zero error\n"); |
| if (v_lo & TALITOS_CCPSR_LO_FPZ) |
| dev_err(dev, is_sec1 ? "parity error\n" |
| : "fetch pointer zero error\n"); |
| if (v_lo & TALITOS_CCPSR_LO_IDH) |
| dev_err(dev, "illegal descriptor header error\n"); |
| if (v_lo & TALITOS_CCPSR_LO_IEU) |
| dev_err(dev, is_sec1 ? "static assignment error\n" |
| : "invalid exec unit error\n"); |
| if (v_lo & TALITOS_CCPSR_LO_EU) |
| report_eu_error(dev, ch, current_desc_hdr(dev, ch)); |
| if (!is_sec1) { |
| if (v_lo & TALITOS_CCPSR_LO_GB) |
| dev_err(dev, "gather boundary error\n"); |
| if (v_lo & TALITOS_CCPSR_LO_GRL) |
| dev_err(dev, "gather return/length error\n"); |
| if (v_lo & TALITOS_CCPSR_LO_SB) |
| dev_err(dev, "scatter boundary error\n"); |
| if (v_lo & TALITOS_CCPSR_LO_SRL) |
| dev_err(dev, "scatter return/length error\n"); |
| } |
| |
| flush_channel(dev, ch, error, reset_ch); |
| |
| if (reset_ch) { |
| reset_channel(dev, ch); |
| } else { |
| setbits32(priv->chan[ch].reg + TALITOS_CCCR, |
| TALITOS2_CCCR_CONT); |
| setbits32(priv->chan[ch].reg + TALITOS_CCCR_LO, 0); |
| while ((in_be32(priv->chan[ch].reg + TALITOS_CCCR) & |
| TALITOS2_CCCR_CONT) && --timeout) |
| cpu_relax(); |
| if (timeout == 0) { |
| dev_err(dev, "failed to restart channel %d\n", |
| ch); |
| reset_dev = 1; |
| } |
| } |
| } |
| if (reset_dev || (is_sec1 && isr & ~TALITOS1_ISR_4CHERR) || |
| (!is_sec1 && isr & ~TALITOS2_ISR_4CHERR) || isr_lo) { |
| if (is_sec1 && (isr_lo & TALITOS1_ISR_TEA_ERR)) |
| dev_err(dev, "TEA error: ISR 0x%08x_%08x\n", |
| isr, isr_lo); |
| else |
| dev_err(dev, "done overflow, internal time out, or " |
| "rngu error: ISR 0x%08x_%08x\n", isr, isr_lo); |
| |
| /* purge request queues */ |
| for (ch = 0; ch < priv->num_channels; ch++) |
| flush_channel(dev, ch, -EIO, 1); |
| |
| /* reset and reinitialize the device */ |
| init_device(dev); |
| } |
| } |
| |
| #define DEF_TALITOS1_INTERRUPT(name, ch_done_mask, ch_err_mask, tlet) \ |
| static irqreturn_t talitos1_interrupt_##name(int irq, void *data) \ |
| { \ |
| struct device *dev = data; \ |
| struct talitos_private *priv = dev_get_drvdata(dev); \ |
| u32 isr, isr_lo; \ |
| unsigned long flags; \ |
| \ |
| spin_lock_irqsave(&priv->reg_lock, flags); \ |
| isr = in_be32(priv->reg + TALITOS_ISR); \ |
| isr_lo = in_be32(priv->reg + TALITOS_ISR_LO); \ |
| /* Acknowledge interrupt */ \ |
| out_be32(priv->reg + TALITOS_ICR, isr & (ch_done_mask | ch_err_mask)); \ |
| out_be32(priv->reg + TALITOS_ICR_LO, isr_lo); \ |
| \ |
| if (unlikely(isr & ch_err_mask || isr_lo & TALITOS1_IMR_LO_INIT)) { \ |
| spin_unlock_irqrestore(&priv->reg_lock, flags); \ |
| talitos_error(dev, isr & ch_err_mask, isr_lo); \ |
| } \ |
| else { \ |
| if (likely(isr & ch_done_mask)) { \ |
| /* mask further done interrupts. */ \ |
| setbits32(priv->reg + TALITOS_IMR, ch_done_mask); \ |
| /* done_task will unmask done interrupts at exit */ \ |
| tasklet_schedule(&priv->done_task[tlet]); \ |
| } \ |
| spin_unlock_irqrestore(&priv->reg_lock, flags); \ |
| } \ |
| \ |
| return (isr & (ch_done_mask | ch_err_mask) || isr_lo) ? IRQ_HANDLED : \ |
| IRQ_NONE; \ |
| } |
| |
| DEF_TALITOS1_INTERRUPT(4ch, TALITOS1_ISR_4CHDONE, TALITOS1_ISR_4CHERR, 0) |
| |
| #define DEF_TALITOS2_INTERRUPT(name, ch_done_mask, ch_err_mask, tlet) \ |
| static irqreturn_t talitos2_interrupt_##name(int irq, void *data) \ |
| { \ |
| struct device *dev = data; \ |
| struct talitos_private *priv = dev_get_drvdata(dev); \ |
| u32 isr, isr_lo; \ |
| unsigned long flags; \ |
| \ |
| spin_lock_irqsave(&priv->reg_lock, flags); \ |
| isr = in_be32(priv->reg + TALITOS_ISR); \ |
| isr_lo = in_be32(priv->reg + TALITOS_ISR_LO); \ |
| /* Acknowledge interrupt */ \ |
| out_be32(priv->reg + TALITOS_ICR, isr & (ch_done_mask | ch_err_mask)); \ |
| out_be32(priv->reg + TALITOS_ICR_LO, isr_lo); \ |
| \ |
| if (unlikely(isr & ch_err_mask || isr_lo)) { \ |
| spin_unlock_irqrestore(&priv->reg_lock, flags); \ |
| talitos_error(dev, isr & ch_err_mask, isr_lo); \ |
| } \ |
| else { \ |
| if (likely(isr & ch_done_mask)) { \ |
| /* mask further done interrupts. */ \ |
| clrbits32(priv->reg + TALITOS_IMR, ch_done_mask); \ |
| /* done_task will unmask done interrupts at exit */ \ |
| tasklet_schedule(&priv->done_task[tlet]); \ |
| } \ |
| spin_unlock_irqrestore(&priv->reg_lock, flags); \ |
| } \ |
| \ |
| return (isr & (ch_done_mask | ch_err_mask) || isr_lo) ? IRQ_HANDLED : \ |
| IRQ_NONE; \ |
| } |
| |
| DEF_TALITOS2_INTERRUPT(4ch, TALITOS2_ISR_4CHDONE, TALITOS2_ISR_4CHERR, 0) |
| DEF_TALITOS2_INTERRUPT(ch0_2, TALITOS2_ISR_CH_0_2_DONE, TALITOS2_ISR_CH_0_2_ERR, |
| 0) |
| DEF_TALITOS2_INTERRUPT(ch1_3, TALITOS2_ISR_CH_1_3_DONE, TALITOS2_ISR_CH_1_3_ERR, |
| 1) |
| |
| /* |
| * hwrng |
| */ |
| static int talitos_rng_data_present(struct hwrng *rng, int wait) |
| { |
| struct device *dev = (struct device *)rng->priv; |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| u32 ofl; |
| int i; |
| |
| for (i = 0; i < 20; i++) { |
| ofl = in_be32(priv->reg_rngu + TALITOS_EUSR_LO) & |
| TALITOS_RNGUSR_LO_OFL; |
| if (ofl || !wait) |
| break; |
| udelay(10); |
| } |
| |
| return !!ofl; |
| } |
| |
| static int talitos_rng_data_read(struct hwrng *rng, u32 *data) |
| { |
| struct device *dev = (struct device *)rng->priv; |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| |
| /* rng fifo requires 64-bit accesses */ |
| *data = in_be32(priv->reg_rngu + TALITOS_EU_FIFO); |
| *data = in_be32(priv->reg_rngu + TALITOS_EU_FIFO_LO); |
| |
| return sizeof(u32); |
| } |
| |
| static int talitos_rng_init(struct hwrng *rng) |
| { |
| struct device *dev = (struct device *)rng->priv; |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| unsigned int timeout = TALITOS_TIMEOUT; |
| |
| setbits32(priv->reg_rngu + TALITOS_EURCR_LO, TALITOS_RNGURCR_LO_SR); |
| while (!(in_be32(priv->reg_rngu + TALITOS_EUSR_LO) |
| & TALITOS_RNGUSR_LO_RD) |
| && --timeout) |
| cpu_relax(); |
| if (timeout == 0) { |
| dev_err(dev, "failed to reset rng hw\n"); |
| return -ENODEV; |
| } |
| |
| /* start generating */ |
| setbits32(priv->reg_rngu + TALITOS_EUDSR_LO, 0); |
| |
| return 0; |
| } |
| |
| static int talitos_register_rng(struct device *dev) |
| { |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| int err; |
| |
| priv->rng.name = dev_driver_string(dev), |
| priv->rng.init = talitos_rng_init, |
| priv->rng.data_present = talitos_rng_data_present, |
| priv->rng.data_read = talitos_rng_data_read, |
| priv->rng.priv = (unsigned long)dev; |
| |
| err = hwrng_register(&priv->rng); |
| if (!err) |
| priv->rng_registered = true; |
| |
| return err; |
| } |
| |
| static void talitos_unregister_rng(struct device *dev) |
| { |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| |
| if (!priv->rng_registered) |
| return; |
| |
| hwrng_unregister(&priv->rng); |
| priv->rng_registered = false; |
| } |
| |
| /* |
| * crypto alg |
| */ |
| #define TALITOS_CRA_PRIORITY 3000 |
| /* |
| * Defines a priority for doing AEAD with descriptors type |
| * HMAC_SNOOP_NO_AFEA (HSNA) instead of type IPSEC_ESP |
| */ |
| #define TALITOS_CRA_PRIORITY_AEAD_HSNA (TALITOS_CRA_PRIORITY - 1) |
| #define TALITOS_MAX_KEY_SIZE (AES_MAX_KEY_SIZE + SHA512_BLOCK_SIZE) |
| #define TALITOS_MAX_IV_LENGTH 16 /* max of AES_BLOCK_SIZE, DES3_EDE_BLOCK_SIZE */ |
| |
| struct talitos_ctx { |
| struct device *dev; |
| int ch; |
| __be32 desc_hdr_template; |
| u8 key[TALITOS_MAX_KEY_SIZE]; |
| u8 iv[TALITOS_MAX_IV_LENGTH]; |
| unsigned int keylen; |
| unsigned int enckeylen; |
| unsigned int authkeylen; |
| }; |
| |
| #define HASH_MAX_BLOCK_SIZE SHA512_BLOCK_SIZE |
| #define TALITOS_MDEU_MAX_CONTEXT_SIZE TALITOS_MDEU_CONTEXT_SIZE_SHA384_SHA512 |
| |
| struct talitos_ahash_req_ctx { |
| u32 hw_context[TALITOS_MDEU_MAX_CONTEXT_SIZE / sizeof(u32)]; |
| unsigned int hw_context_size; |
| u8 buf[HASH_MAX_BLOCK_SIZE]; |
| u8 bufnext[HASH_MAX_BLOCK_SIZE]; |
| unsigned int swinit; |
| unsigned int first; |
| unsigned int last; |
| unsigned int to_hash_later; |
| unsigned int nbuf; |
| struct scatterlist bufsl[2]; |
| struct scatterlist *psrc; |
| }; |
| |
| struct talitos_export_state { |
| u32 hw_context[TALITOS_MDEU_MAX_CONTEXT_SIZE / sizeof(u32)]; |
| u8 buf[HASH_MAX_BLOCK_SIZE]; |
| unsigned int swinit; |
| unsigned int first; |
| unsigned int last; |
| unsigned int to_hash_later; |
| unsigned int nbuf; |
| }; |
| |
| static int aead_setkey(struct crypto_aead *authenc, |
| const u8 *key, unsigned int keylen) |
| { |
| struct talitos_ctx *ctx = crypto_aead_ctx(authenc); |
| struct crypto_authenc_keys keys; |
| |
| if (crypto_authenc_extractkeys(&keys, key, keylen) != 0) |
| goto badkey; |
| |
| if (keys.authkeylen + keys.enckeylen > TALITOS_MAX_KEY_SIZE) |
| goto badkey; |
| |
| memcpy(ctx->key, keys.authkey, keys.authkeylen); |
| memcpy(&ctx->key[keys.authkeylen], keys.enckey, keys.enckeylen); |
| |
| ctx->keylen = keys.authkeylen + keys.enckeylen; |
| ctx->enckeylen = keys.enckeylen; |
| ctx->authkeylen = keys.authkeylen; |
| |
| return 0; |
| |
| badkey: |
| crypto_aead_set_flags(authenc, CRYPTO_TFM_RES_BAD_KEY_LEN); |
| return -EINVAL; |
| } |
| |
| /* |
| * talitos_edesc - s/w-extended descriptor |
| * @src_nents: number of segments in input scatterlist |
| * @dst_nents: number of segments in output scatterlist |
| * @icv_ool: whether ICV is out-of-line |
| * @iv_dma: dma address of iv for checking continuity and link table |
| * @dma_len: length of dma mapped link_tbl space |
| * @dma_link_tbl: bus physical address of link_tbl/buf |
| * @desc: h/w descriptor |
| * @link_tbl: input and output h/w link tables (if {src,dst}_nents > 1) (SEC2) |
| * @buf: input and output buffeur (if {src,dst}_nents > 1) (SEC1) |
| * |
| * if decrypting (with authcheck), or either one of src_nents or dst_nents |
| * is greater than 1, an integrity check value is concatenated to the end |
| * of link_tbl data |
| */ |
| struct talitos_edesc { |
| int src_nents; |
| int dst_nents; |
| bool icv_ool; |
| dma_addr_t iv_dma; |
| int dma_len; |
| dma_addr_t dma_link_tbl; |
| struct talitos_desc desc; |
| union { |
| struct talitos_ptr link_tbl[0]; |
| u8 buf[0]; |
| }; |
| }; |
| |
| static void talitos_sg_unmap(struct device *dev, |
| struct talitos_edesc *edesc, |
| struct scatterlist *src, |
| struct scatterlist *dst, |
| unsigned int len, unsigned int offset) |
| { |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| bool is_sec1 = has_ftr_sec1(priv); |
| unsigned int src_nents = edesc->src_nents ? : 1; |
| unsigned int dst_nents = edesc->dst_nents ? : 1; |
| |
| if (is_sec1 && dst && dst_nents > 1) { |
| dma_sync_single_for_device(dev, edesc->dma_link_tbl + offset, |
| len, DMA_FROM_DEVICE); |
| sg_pcopy_from_buffer(dst, dst_nents, edesc->buf + offset, len, |
| offset); |
| } |
| if (src != dst) { |
| if (src_nents == 1 || !is_sec1) |
| dma_unmap_sg(dev, src, src_nents, DMA_TO_DEVICE); |
| |
| if (dst && (dst_nents == 1 || !is_sec1)) |
| dma_unmap_sg(dev, dst, dst_nents, DMA_FROM_DEVICE); |
| } else if (src_nents == 1 || !is_sec1) { |
| dma_unmap_sg(dev, src, src_nents, DMA_BIDIRECTIONAL); |
| } |
| } |
| |
| static void ipsec_esp_unmap(struct device *dev, |
| struct talitos_edesc *edesc, |
| struct aead_request *areq) |
| { |
| struct crypto_aead *aead = crypto_aead_reqtfm(areq); |
| struct talitos_ctx *ctx = crypto_aead_ctx(aead); |
| unsigned int ivsize = crypto_aead_ivsize(aead); |
| |
| if (edesc->desc.hdr & DESC_HDR_TYPE_IPSEC_ESP) |
| unmap_single_talitos_ptr(dev, &edesc->desc.ptr[6], |
| DMA_FROM_DEVICE); |
| unmap_single_talitos_ptr(dev, &edesc->desc.ptr[3], DMA_TO_DEVICE); |
| unmap_single_talitos_ptr(dev, &edesc->desc.ptr[2], DMA_TO_DEVICE); |
| unmap_single_talitos_ptr(dev, &edesc->desc.ptr[0], DMA_TO_DEVICE); |
| |
| talitos_sg_unmap(dev, edesc, areq->src, areq->dst, areq->cryptlen, |
| areq->assoclen); |
| |
| if (edesc->dma_len) |
| dma_unmap_single(dev, edesc->dma_link_tbl, edesc->dma_len, |
| DMA_BIDIRECTIONAL); |
| |
| if (!(edesc->desc.hdr & DESC_HDR_TYPE_IPSEC_ESP)) { |
| unsigned int dst_nents = edesc->dst_nents ? : 1; |
| |
| sg_pcopy_to_buffer(areq->dst, dst_nents, ctx->iv, ivsize, |
| areq->assoclen + areq->cryptlen - ivsize); |
| } |
| } |
| |
| /* |
| * ipsec_esp descriptor callbacks |
| */ |
| static void ipsec_esp_encrypt_done(struct device *dev, |
| struct talitos_desc *desc, void *context, |
| int err) |
| { |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| bool is_sec1 = has_ftr_sec1(priv); |
| struct aead_request *areq = context; |
| struct crypto_aead *authenc = crypto_aead_reqtfm(areq); |
| unsigned int authsize = crypto_aead_authsize(authenc); |
| struct talitos_edesc *edesc; |
| struct scatterlist *sg; |
| void *icvdata; |
| |
| edesc = container_of(desc, struct talitos_edesc, desc); |
| |
| ipsec_esp_unmap(dev, edesc, areq); |
| |
| /* copy the generated ICV to dst */ |
| if (edesc->icv_ool) { |
| if (is_sec1) |
| icvdata = edesc->buf + areq->assoclen + areq->cryptlen; |
| else |
| icvdata = &edesc->link_tbl[edesc->src_nents + |
| edesc->dst_nents + 2]; |
| sg = sg_last(areq->dst, edesc->dst_nents); |
| memcpy((char *)sg_virt(sg) + sg->length - authsize, |
| icvdata, authsize); |
| } |
| |
| kfree(edesc); |
| |
| aead_request_complete(areq, err); |
| } |
| |
| static void ipsec_esp_decrypt_swauth_done(struct device *dev, |
| struct talitos_desc *desc, |
| void *context, int err) |
| { |
| struct aead_request *req = context; |
| struct crypto_aead *authenc = crypto_aead_reqtfm(req); |
| unsigned int authsize = crypto_aead_authsize(authenc); |
| struct talitos_edesc *edesc; |
| struct scatterlist *sg; |
| char *oicv, *icv; |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| bool is_sec1 = has_ftr_sec1(priv); |
| |
| edesc = container_of(desc, struct talitos_edesc, desc); |
| |
| ipsec_esp_unmap(dev, edesc, req); |
| |
| if (!err) { |
| /* auth check */ |
| sg = sg_last(req->dst, edesc->dst_nents ? : 1); |
| icv = (char *)sg_virt(sg) + sg->length - authsize; |
| |
| if (edesc->dma_len) { |
| if (is_sec1) |
| oicv = (char *)&edesc->dma_link_tbl + |
| req->assoclen + req->cryptlen; |
| else |
| oicv = (char *) |
| &edesc->link_tbl[edesc->src_nents + |
| edesc->dst_nents + 2]; |
| if (edesc->icv_ool) |
| icv = oicv + authsize; |
| } else |
| oicv = (char *)&edesc->link_tbl[0]; |
| |
| err = crypto_memneq(oicv, icv, authsize) ? -EBADMSG : 0; |
| } |
| |
| kfree(edesc); |
| |
| aead_request_complete(req, err); |
| } |
| |
| static void ipsec_esp_decrypt_hwauth_done(struct device *dev, |
| struct talitos_desc *desc, |
| void *context, int err) |
| { |
| struct aead_request *req = context; |
| struct talitos_edesc *edesc; |
| |
| edesc = container_of(desc, struct talitos_edesc, desc); |
| |
| ipsec_esp_unmap(dev, edesc, req); |
| |
| /* check ICV auth status */ |
| if (!err && ((desc->hdr_lo & DESC_HDR_LO_ICCR1_MASK) != |
| DESC_HDR_LO_ICCR1_PASS)) |
| err = -EBADMSG; |
| |
| kfree(edesc); |
| |
| aead_request_complete(req, err); |
| } |
| |
| /* |
| * convert scatterlist to SEC h/w link table format |
| * stop at cryptlen bytes |
| */ |
| static int sg_to_link_tbl_offset(struct scatterlist *sg, int sg_count, |
| unsigned int offset, int cryptlen, |
| struct talitos_ptr *link_tbl_ptr) |
| { |
| int n_sg = sg_count; |
| int count = 0; |
| |
| while (cryptlen && sg && n_sg--) { |
| unsigned int len = sg_dma_len(sg); |
| |
| if (offset >= len) { |
| offset -= len; |
| goto next; |
| } |
| |
| len -= offset; |
| |
| if (len > cryptlen) |
| len = cryptlen; |
| |
| to_talitos_ptr(link_tbl_ptr + count, |
| sg_dma_address(sg) + offset, 0); |
| to_talitos_ptr_len(link_tbl_ptr + count, len, 0); |
| to_talitos_ptr_ext_set(link_tbl_ptr + count, 0, 0); |
| count++; |
| cryptlen -= len; |
| offset = 0; |
| |
| next: |
| sg = sg_next(sg); |
| } |
| |
| /* tag end of link table */ |
| if (count > 0) |
| to_talitos_ptr_ext_set(link_tbl_ptr + count - 1, |
| DESC_PTR_LNKTBL_RETURN, 0); |
| |
| return count; |
| } |
| |
| int talitos_sg_map(struct device *dev, struct scatterlist *src, |
| unsigned int len, struct talitos_edesc *edesc, |
| struct talitos_ptr *ptr, |
| int sg_count, unsigned int offset, int tbl_off) |
| { |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| bool is_sec1 = has_ftr_sec1(priv); |
| |
| to_talitos_ptr_len(ptr, len, is_sec1); |
| to_talitos_ptr_ext_set(ptr, 0, is_sec1); |
| |
| if (sg_count == 1) { |
| to_talitos_ptr(ptr, sg_dma_address(src) + offset, is_sec1); |
| return sg_count; |
| } |
| if (is_sec1) { |
| to_talitos_ptr(ptr, edesc->dma_link_tbl + offset, is_sec1); |
| return sg_count; |
| } |
| sg_count = sg_to_link_tbl_offset(src, sg_count, offset, len, |
| &edesc->link_tbl[tbl_off]); |
| if (sg_count == 1) { |
| /* Only one segment now, so no link tbl needed*/ |
| copy_talitos_ptr(ptr, &edesc->link_tbl[tbl_off], is_sec1); |
| return sg_count; |
| } |
| to_talitos_ptr(ptr, edesc->dma_link_tbl + |
| tbl_off * sizeof(struct talitos_ptr), is_sec1); |
| to_talitos_ptr_ext_or(ptr, DESC_PTR_LNKTBL_JUMP, is_sec1); |
| |
| return sg_count; |
| } |
| |
| /* |
| * fill in and submit ipsec_esp descriptor |
| */ |
| static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq, |
| void (*callback)(struct device *dev, |
| struct talitos_desc *desc, |
| void *context, int error)) |
| { |
| struct crypto_aead *aead = crypto_aead_reqtfm(areq); |
| unsigned int authsize = crypto_aead_authsize(aead); |
| struct talitos_ctx *ctx = crypto_aead_ctx(aead); |
| struct device *dev = ctx->dev; |
| struct talitos_desc *desc = &edesc->desc; |
| unsigned int cryptlen = areq->cryptlen; |
| unsigned int ivsize = crypto_aead_ivsize(aead); |
| int tbl_off = 0; |
| int sg_count, ret; |
| int sg_link_tbl_len; |
| bool sync_needed = false; |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| bool is_sec1 = has_ftr_sec1(priv); |
| |
| /* hmac key */ |
| map_single_talitos_ptr(dev, &desc->ptr[0], ctx->authkeylen, &ctx->key, |
| DMA_TO_DEVICE); |
| |
| sg_count = edesc->src_nents ?: 1; |
| if (is_sec1 && sg_count > 1) |
| sg_copy_to_buffer(areq->src, sg_count, edesc->buf, |
| areq->assoclen + cryptlen); |
| else |
| sg_count = dma_map_sg(dev, areq->src, sg_count, |
| (areq->src == areq->dst) ? |
| DMA_BIDIRECTIONAL : DMA_TO_DEVICE); |
| |
| /* hmac data */ |
| ret = talitos_sg_map(dev, areq->src, areq->assoclen, edesc, |
| &desc->ptr[1], sg_count, 0, tbl_off); |
| |
| if (ret > 1) { |
| tbl_off += ret; |
| sync_needed = true; |
| } |
| |
| /* cipher iv */ |
| if (desc->hdr & DESC_HDR_TYPE_IPSEC_ESP) { |
| to_talitos_ptr(&desc->ptr[2], edesc->iv_dma, is_sec1); |
| to_talitos_ptr_len(&desc->ptr[2], ivsize, is_sec1); |
| to_talitos_ptr_ext_set(&desc->ptr[2], 0, is_sec1); |
| } else { |
| to_talitos_ptr(&desc->ptr[3], edesc->iv_dma, is_sec1); |
| to_talitos_ptr_len(&desc->ptr[3], ivsize, is_sec1); |
| to_talitos_ptr_ext_set(&desc->ptr[3], 0, is_sec1); |
| } |
| |
| /* cipher key */ |
| if (desc->hdr & DESC_HDR_TYPE_IPSEC_ESP) |
| map_single_talitos_ptr(dev, &desc->ptr[3], ctx->enckeylen, |
| (char *)&ctx->key + ctx->authkeylen, |
| DMA_TO_DEVICE); |
| else |
| map_single_talitos_ptr(dev, &desc->ptr[2], ctx->enckeylen, |
| (char *)&ctx->key + ctx->authkeylen, |
| DMA_TO_DEVICE); |
| |
| /* |
| * cipher in |
| * map and adjust cipher len to aead request cryptlen. |
| * extent is bytes of HMAC postpended to ciphertext, |
| * typically 12 for ipsec |
| */ |
| to_talitos_ptr_len(&desc->ptr[4], cryptlen, is_sec1); |
| to_talitos_ptr_ext_set(&desc->ptr[4], 0, is_sec1); |
| |
| sg_link_tbl_len = cryptlen; |
| |
| if (desc->hdr & DESC_HDR_TYPE_IPSEC_ESP) { |
| to_talitos_ptr_ext_set(&desc->ptr[4], authsize, is_sec1); |
| |
| if (edesc->desc.hdr & DESC_HDR_MODE1_MDEU_CICV) |
| sg_link_tbl_len += authsize; |
| } |
| |
| sg_count = talitos_sg_map(dev, areq->src, cryptlen, edesc, |
| &desc->ptr[4], sg_count, areq->assoclen, |
| tbl_off); |
| |
| if (sg_count > 1) { |
| tbl_off += sg_count; |
| sync_needed = true; |
| } |
| |
| /* cipher out */ |
| if (areq->src != areq->dst) { |
| sg_count = edesc->dst_nents ? : 1; |
| if (!is_sec1 || sg_count == 1) |
| dma_map_sg(dev, areq->dst, sg_count, DMA_FROM_DEVICE); |
| } |
| |
| sg_count = talitos_sg_map(dev, areq->dst, cryptlen, edesc, |
| &desc->ptr[5], sg_count, areq->assoclen, |
| tbl_off); |
| |
| if (desc->hdr & DESC_HDR_TYPE_IPSEC_ESP) |
| to_talitos_ptr_ext_or(&desc->ptr[5], authsize, is_sec1); |
| |
| if (sg_count > 1) { |
| edesc->icv_ool = true; |
| sync_needed = true; |
| |
| if (desc->hdr & DESC_HDR_TYPE_IPSEC_ESP) { |
| struct talitos_ptr *tbl_ptr = &edesc->link_tbl[tbl_off]; |
| int offset = (edesc->src_nents + edesc->dst_nents + 2) * |
| sizeof(struct talitos_ptr) + authsize; |
| |
| /* Add an entry to the link table for ICV data */ |
| tbl_ptr += sg_count - 1; |
| to_talitos_ptr_ext_set(tbl_ptr, 0, is_sec1); |
| tbl_ptr++; |
| to_talitos_ptr_ext_set(tbl_ptr, DESC_PTR_LNKTBL_RETURN, |
| is_sec1); |
| to_talitos_ptr_len(tbl_ptr, authsize, is_sec1); |
| |
| /* icv data follows link tables */ |
| to_talitos_ptr(tbl_ptr, edesc->dma_link_tbl + offset, |
| is_sec1); |
| } |
| } else { |
| edesc->icv_ool = false; |
| } |
| |
| /* ICV data */ |
| if (!(desc->hdr & DESC_HDR_TYPE_IPSEC_ESP)) { |
| to_talitos_ptr_len(&desc->ptr[6], authsize, is_sec1); |
| to_talitos_ptr(&desc->ptr[6], edesc->dma_link_tbl + |
| areq->assoclen + cryptlen, is_sec1); |
| } |
| |
| /* iv out */ |
| if (desc->hdr & DESC_HDR_TYPE_IPSEC_ESP) |
| map_single_talitos_ptr(dev, &desc->ptr[6], ivsize, ctx->iv, |
| DMA_FROM_DEVICE); |
| |
| if (sync_needed) |
| dma_sync_single_for_device(dev, edesc->dma_link_tbl, |
| edesc->dma_len, |
| DMA_BIDIRECTIONAL); |
| |
| ret = talitos_submit(dev, ctx->ch, desc, callback, areq); |
| if (ret != -EINPROGRESS) { |
| ipsec_esp_unmap(dev, edesc, areq); |
| kfree(edesc); |
| } |
| return ret; |
| } |
| |
| /* |
| * allocate and map the extended descriptor |
| */ |
| static struct talitos_edesc *talitos_edesc_alloc(struct device *dev, |
| struct scatterlist *src, |
| struct scatterlist *dst, |
| u8 *iv, |
| unsigned int assoclen, |
| unsigned int cryptlen, |
| unsigned int authsize, |
| unsigned int ivsize, |
| int icv_stashing, |
| u32 cryptoflags, |
| bool encrypt) |
| { |
| struct talitos_edesc *edesc; |
| int src_nents, dst_nents, alloc_len, dma_len, src_len, dst_len; |
| dma_addr_t iv_dma = 0; |
| gfp_t flags = cryptoflags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL : |
| GFP_ATOMIC; |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| bool is_sec1 = has_ftr_sec1(priv); |
| int max_len = is_sec1 ? TALITOS1_MAX_DATA_LEN : TALITOS2_MAX_DATA_LEN; |
| void *err; |
| |
| if (cryptlen + authsize > max_len) { |
| dev_err(dev, "length exceeds h/w max limit\n"); |
| return ERR_PTR(-EINVAL); |
| } |
| |
| if (ivsize) |
| iv_dma = dma_map_single(dev, iv, ivsize, DMA_TO_DEVICE); |
| |
| if (!dst || dst == src) { |
| src_len = assoclen + cryptlen + authsize; |
| src_nents = sg_nents_for_len(src, src_len); |
| if (src_nents < 0) { |
| dev_err(dev, "Invalid number of src SG.\n"); |
| err = ERR_PTR(-EINVAL); |
| goto error_sg; |
| } |
| src_nents = (src_nents == 1) ? 0 : src_nents; |
| dst_nents = dst ? src_nents : 0; |
| dst_len = 0; |
| } else { /* dst && dst != src*/ |
| src_len = assoclen + cryptlen + (encrypt ? 0 : authsize); |
| src_nents = sg_nents_for_len(src, src_len); |
| if (src_nents < 0) { |
| dev_err(dev, "Invalid number of src SG.\n"); |
| err = ERR_PTR(-EINVAL); |
| goto error_sg; |
| } |
| src_nents = (src_nents == 1) ? 0 : src_nents; |
| dst_len = assoclen + cryptlen + (encrypt ? authsize : 0); |
| dst_nents = sg_nents_for_len(dst, dst_len); |
| if (dst_nents < 0) { |
| dev_err(dev, "Invalid number of dst SG.\n"); |
| err = ERR_PTR(-EINVAL); |
| goto error_sg; |
| } |
| dst_nents = (dst_nents == 1) ? 0 : dst_nents; |
| } |
| |
| /* |
| * allocate space for base edesc plus the link tables, |
| * allowing for two separate entries for AD and generated ICV (+ 2), |
| * and space for two sets of ICVs (stashed and generated) |
| */ |
| alloc_len = sizeof(struct talitos_edesc); |
| if (src_nents || dst_nents) { |
| if (is_sec1) |
| dma_len = (src_nents ? src_len : 0) + |
| (dst_nents ? dst_len : 0); |
| else |
| dma_len = (src_nents + dst_nents + 2) * |
| sizeof(struct talitos_ptr) + authsize * 2; |
| alloc_len += dma_len; |
| } else { |
| dma_len = 0; |
| alloc_len += icv_stashing ? authsize : 0; |
| } |
| |
| edesc = kmalloc(alloc_len, GFP_DMA | flags); |
| if (!edesc) { |
| dev_err(dev, "could not allocate edescriptor\n"); |
| err = ERR_PTR(-ENOMEM); |
| goto error_sg; |
| } |
| |
| edesc->src_nents = src_nents; |
| edesc->dst_nents = dst_nents; |
| edesc->iv_dma = iv_dma; |
| edesc->dma_len = dma_len; |
| if (dma_len) |
| edesc->dma_link_tbl = dma_map_single(dev, &edesc->link_tbl[0], |
| edesc->dma_len, |
| DMA_BIDIRECTIONAL); |
| |
| return edesc; |
| error_sg: |
| if (iv_dma) |
| dma_unmap_single(dev, iv_dma, ivsize, DMA_TO_DEVICE); |
| return err; |
| } |
| |
| static struct talitos_edesc *aead_edesc_alloc(struct aead_request *areq, u8 *iv, |
| int icv_stashing, bool encrypt) |
| { |
| struct crypto_aead *authenc = crypto_aead_reqtfm(areq); |
| unsigned int authsize = crypto_aead_authsize(authenc); |
| struct talitos_ctx *ctx = crypto_aead_ctx(authenc); |
| unsigned int ivsize = crypto_aead_ivsize(authenc); |
| |
| return talitos_edesc_alloc(ctx->dev, areq->src, areq->dst, |
| iv, areq->assoclen, areq->cryptlen, |
| authsize, ivsize, icv_stashing, |
| areq->base.flags, encrypt); |
| } |
| |
| static int aead_encrypt(struct aead_request *req) |
| { |
| struct crypto_aead *authenc = crypto_aead_reqtfm(req); |
| struct talitos_ctx *ctx = crypto_aead_ctx(authenc); |
| struct talitos_edesc *edesc; |
| |
| /* allocate extended descriptor */ |
| edesc = aead_edesc_alloc(req, req->iv, 0, true); |
| if (IS_ERR(edesc)) |
| return PTR_ERR(edesc); |
| |
| /* set encrypt */ |
| edesc->desc.hdr = ctx->desc_hdr_template | DESC_HDR_MODE0_ENCRYPT; |
| |
| return ipsec_esp(edesc, req, ipsec_esp_encrypt_done); |
| } |
| |
| static int aead_decrypt(struct aead_request *req) |
| { |
| struct crypto_aead *authenc = crypto_aead_reqtfm(req); |
| unsigned int authsize = crypto_aead_authsize(authenc); |
| struct talitos_ctx *ctx = crypto_aead_ctx(authenc); |
| struct talitos_private *priv = dev_get_drvdata(ctx->dev); |
| struct talitos_edesc *edesc; |
| struct scatterlist *sg; |
| void *icvdata; |
| |
| req->cryptlen -= authsize; |
| |
| /* allocate extended descriptor */ |
| edesc = aead_edesc_alloc(req, req->iv, 1, false); |
| if (IS_ERR(edesc)) |
| return PTR_ERR(edesc); |
| |
| if ((priv->features & TALITOS_FTR_HW_AUTH_CHECK) && |
| ((!edesc->src_nents && !edesc->dst_nents) || |
| priv->features & TALITOS_FTR_SRC_LINK_TBL_LEN_INCLUDES_EXTENT)) { |
| |
| /* decrypt and check the ICV */ |
| edesc->desc.hdr = ctx->desc_hdr_template | |
| DESC_HDR_DIR_INBOUND | |
| DESC_HDR_MODE1_MDEU_CICV; |
| |
| /* reset integrity check result bits */ |
| edesc->desc.hdr_lo = 0; |
| |
| return ipsec_esp(edesc, req, ipsec_esp_decrypt_hwauth_done); |
| } |
| |
| /* Have to check the ICV with software */ |
| edesc->desc.hdr = ctx->desc_hdr_template | DESC_HDR_DIR_INBOUND; |
| |
| /* stash incoming ICV for later cmp with ICV generated by the h/w */ |
| if (edesc->dma_len) |
| icvdata = (char *)&edesc->link_tbl[edesc->src_nents + |
| edesc->dst_nents + 2]; |
| else |
| icvdata = &edesc->link_tbl[0]; |
| |
| sg = sg_last(req->src, edesc->src_nents ? : 1); |
| |
| memcpy(icvdata, (char *)sg_virt(sg) + sg->length - authsize, authsize); |
| |
| return ipsec_esp(edesc, req, ipsec_esp_decrypt_swauth_done); |
| } |
| |
| static int ablkcipher_setkey(struct crypto_ablkcipher *cipher, |
| const u8 *key, unsigned int keylen) |
| { |
| struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher); |
| |
| if (keylen > TALITOS_MAX_KEY_SIZE) { |
| crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN); |
| return -EINVAL; |
| } |
| |
| memcpy(&ctx->key, key, keylen); |
| ctx->keylen = keylen; |
| |
| return 0; |
| } |
| |
| static void common_nonsnoop_unmap(struct device *dev, |
| struct talitos_edesc *edesc, |
| struct ablkcipher_request *areq) |
| { |
| unmap_single_talitos_ptr(dev, &edesc->desc.ptr[5], DMA_FROM_DEVICE); |
| |
| talitos_sg_unmap(dev, edesc, areq->src, areq->dst, areq->nbytes, 0); |
| unmap_single_talitos_ptr(dev, &edesc->desc.ptr[2], DMA_TO_DEVICE); |
| unmap_single_talitos_ptr(dev, &edesc->desc.ptr[1], DMA_TO_DEVICE); |
| |
| if (edesc->dma_len) |
| dma_unmap_single(dev, edesc->dma_link_tbl, edesc->dma_len, |
| DMA_BIDIRECTIONAL); |
| } |
| |
| static void ablkcipher_done(struct device *dev, |
| struct talitos_desc *desc, void *context, |
| int err) |
| { |
| struct ablkcipher_request *areq = context; |
| struct talitos_edesc *edesc; |
| |
| edesc = container_of(desc, struct talitos_edesc, desc); |
| |
| common_nonsnoop_unmap(dev, edesc, areq); |
| |
| kfree(edesc); |
| |
| areq->base.complete(&areq->base, err); |
| } |
| |
| static int common_nonsnoop(struct talitos_edesc *edesc, |
| struct ablkcipher_request *areq, |
| void (*callback) (struct device *dev, |
| struct talitos_desc *desc, |
| void *context, int error)) |
| { |
| struct crypto_ablkcipher *cipher = crypto_ablkcipher_reqtfm(areq); |
| struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher); |
| struct device *dev = ctx->dev; |
| struct talitos_desc *desc = &edesc->desc; |
| unsigned int cryptlen = areq->nbytes; |
| unsigned int ivsize = crypto_ablkcipher_ivsize(cipher); |
| int sg_count, ret; |
| bool sync_needed = false; |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| bool is_sec1 = has_ftr_sec1(priv); |
| |
| /* first DWORD empty */ |
| desc->ptr[0] = zero_entry; |
| |
| /* cipher iv */ |
| to_talitos_ptr(&desc->ptr[1], edesc->iv_dma, is_sec1); |
| to_talitos_ptr_len(&desc->ptr[1], ivsize, is_sec1); |
| to_talitos_ptr_ext_set(&desc->ptr[1], 0, is_sec1); |
| |
| /* cipher key */ |
| map_single_talitos_ptr(dev, &desc->ptr[2], ctx->keylen, |
| (char *)&ctx->key, DMA_TO_DEVICE); |
| |
| sg_count = edesc->src_nents ?: 1; |
| if (is_sec1 && sg_count > 1) |
| sg_copy_to_buffer(areq->src, sg_count, edesc->buf, |
| cryptlen); |
| else |
| sg_count = dma_map_sg(dev, areq->src, sg_count, |
| (areq->src == areq->dst) ? |
| DMA_BIDIRECTIONAL : DMA_TO_DEVICE); |
| /* |
| * cipher in |
| */ |
| sg_count = talitos_sg_map(dev, areq->src, cryptlen, edesc, |
| &desc->ptr[3], sg_count, 0, 0); |
| if (sg_count > 1) |
| sync_needed = true; |
| |
| /* cipher out */ |
| if (areq->src != areq->dst) { |
| sg_count = edesc->dst_nents ? : 1; |
| if (!is_sec1 || sg_count == 1) |
| dma_map_sg(dev, areq->dst, sg_count, DMA_FROM_DEVICE); |
| } |
| |
| ret = talitos_sg_map(dev, areq->dst, cryptlen, edesc, &desc->ptr[4], |
| sg_count, 0, (edesc->src_nents + 1)); |
| if (ret > 1) |
| sync_needed = true; |
| |
| /* iv out */ |
| map_single_talitos_ptr(dev, &desc->ptr[5], ivsize, ctx->iv, |
| DMA_FROM_DEVICE); |
| |
| /* last DWORD empty */ |
| desc->ptr[6] = zero_entry; |
| |
| if (sync_needed) |
| dma_sync_single_for_device(dev, edesc->dma_link_tbl, |
| edesc->dma_len, DMA_BIDIRECTIONAL); |
| |
| ret = talitos_submit(dev, ctx->ch, desc, callback, areq); |
| if (ret != -EINPROGRESS) { |
| common_nonsnoop_unmap(dev, edesc, areq); |
| kfree(edesc); |
| } |
| return ret; |
| } |
| |
| static struct talitos_edesc *ablkcipher_edesc_alloc(struct ablkcipher_request * |
| areq, bool encrypt) |
| { |
| struct crypto_ablkcipher *cipher = crypto_ablkcipher_reqtfm(areq); |
| struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher); |
| unsigned int ivsize = crypto_ablkcipher_ivsize(cipher); |
| |
| return talitos_edesc_alloc(ctx->dev, areq->src, areq->dst, |
| areq->info, 0, areq->nbytes, 0, ivsize, 0, |
| areq->base.flags, encrypt); |
| } |
| |
| static int ablkcipher_encrypt(struct ablkcipher_request *areq) |
| { |
| struct crypto_ablkcipher *cipher = crypto_ablkcipher_reqtfm(areq); |
| struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher); |
| struct talitos_edesc *edesc; |
| |
| /* allocate extended descriptor */ |
| edesc = ablkcipher_edesc_alloc(areq, true); |
| if (IS_ERR(edesc)) |
| return PTR_ERR(edesc); |
| |
| /* set encrypt */ |
| edesc->desc.hdr = ctx->desc_hdr_template | DESC_HDR_MODE0_ENCRYPT; |
| |
| return common_nonsnoop(edesc, areq, ablkcipher_done); |
| } |
| |
| static int ablkcipher_decrypt(struct ablkcipher_request *areq) |
| { |
| struct crypto_ablkcipher *cipher = crypto_ablkcipher_reqtfm(areq); |
| struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher); |
| struct talitos_edesc *edesc; |
| |
| /* allocate extended descriptor */ |
| edesc = ablkcipher_edesc_alloc(areq, false); |
| if (IS_ERR(edesc)) |
| return PTR_ERR(edesc); |
| |
| edesc->desc.hdr = ctx->desc_hdr_template | DESC_HDR_DIR_INBOUND; |
| |
| return common_nonsnoop(edesc, areq, ablkcipher_done); |
| } |
| |
| static void common_nonsnoop_hash_unmap(struct device *dev, |
| struct talitos_edesc *edesc, |
| struct ahash_request *areq) |
| { |
| struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| bool is_sec1 = has_ftr_sec1(priv); |
| |
| unmap_single_talitos_ptr(dev, &edesc->desc.ptr[5], DMA_FROM_DEVICE); |
| |
| talitos_sg_unmap(dev, edesc, req_ctx->psrc, NULL, 0, 0); |
| |
| /* When using hashctx-in, must unmap it. */ |
| if (from_talitos_ptr_len(&edesc->desc.ptr[1], is_sec1)) |
| unmap_single_talitos_ptr(dev, &edesc->desc.ptr[1], |
| DMA_TO_DEVICE); |
| |
| if (from_talitos_ptr_len(&edesc->desc.ptr[2], is_sec1)) |
| unmap_single_talitos_ptr(dev, &edesc->desc.ptr[2], |
| DMA_TO_DEVICE); |
| |
| if (edesc->dma_len) |
| dma_unmap_single(dev, edesc->dma_link_tbl, edesc->dma_len, |
| DMA_BIDIRECTIONAL); |
| |
| } |
| |
| static void ahash_done(struct device *dev, |
| struct talitos_desc *desc, void *context, |
| int err) |
| { |
| struct ahash_request *areq = context; |
| struct talitos_edesc *edesc = |
| container_of(desc, struct talitos_edesc, desc); |
| struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); |
| |
| if (!req_ctx->last && req_ctx->to_hash_later) { |
| /* Position any partial block for next update/final/finup */ |
| memcpy(req_ctx->buf, req_ctx->bufnext, req_ctx->to_hash_later); |
| req_ctx->nbuf = req_ctx->to_hash_later; |
| } |
| common_nonsnoop_hash_unmap(dev, edesc, areq); |
| |
| kfree(edesc); |
| |
| areq->base.complete(&areq->base, err); |
| } |
| |
| /* |
| * SEC1 doesn't like hashing of 0 sized message, so we do the padding |
| * ourself and submit a padded block |
| */ |
| void talitos_handle_buggy_hash(struct talitos_ctx *ctx, |
| struct talitos_edesc *edesc, |
| struct talitos_ptr *ptr) |
| { |
| static u8 padded_hash[64] = { |
| 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| }; |
| |
| pr_err_once("Bug in SEC1, padding ourself\n"); |
| edesc->desc.hdr &= ~DESC_HDR_MODE0_MDEU_PAD; |
| map_single_talitos_ptr(ctx->dev, ptr, sizeof(padded_hash), |
| (char *)padded_hash, DMA_TO_DEVICE); |
| } |
| |
| static int common_nonsnoop_hash(struct talitos_edesc *edesc, |
| struct ahash_request *areq, unsigned int length, |
| void (*callback) (struct device *dev, |
| struct talitos_desc *desc, |
| void *context, int error)) |
| { |
| struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq); |
| struct talitos_ctx *ctx = crypto_ahash_ctx(tfm); |
| struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); |
| struct device *dev = ctx->dev; |
| struct talitos_desc *desc = &edesc->desc; |
| int ret; |
| bool sync_needed = false; |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| bool is_sec1 = has_ftr_sec1(priv); |
| int sg_count; |
| |
| /* first DWORD empty */ |
| desc->ptr[0] = zero_entry; |
| |
| /* hash context in */ |
| if (!req_ctx->first || req_ctx->swinit) { |
| map_single_talitos_ptr(dev, &desc->ptr[1], |
| req_ctx->hw_context_size, |
| (char *)req_ctx->hw_context, |
| DMA_TO_DEVICE); |
| req_ctx->swinit = 0; |
| } else { |
| desc->ptr[1] = zero_entry; |
| /* Indicate next op is not the first. */ |
| req_ctx->first = 0; |
| } |
| |
| /* HMAC key */ |
| if (ctx->keylen) |
| map_single_talitos_ptr(dev, &desc->ptr[2], ctx->keylen, |
| (char *)&ctx->key, DMA_TO_DEVICE); |
| else |
| desc->ptr[2] = zero_entry; |
| |
| sg_count = edesc->src_nents ?: 1; |
| if (is_sec1 && sg_count > 1) |
| sg_copy_to_buffer(areq->src, sg_count, edesc->buf, length); |
| else |
| sg_count = dma_map_sg(dev, req_ctx->psrc, sg_count, |
| DMA_TO_DEVICE); |
| /* |
| * data in |
| */ |
| sg_count = talitos_sg_map(dev, req_ctx->psrc, length, edesc, |
| &desc->ptr[3], sg_count, 0, 0); |
| if (sg_count > 1) |
| sync_needed = true; |
| |
| /* fifth DWORD empty */ |
| desc->ptr[4] = zero_entry; |
| |
| /* hash/HMAC out -or- hash context out */ |
| if (req_ctx->last) |
| map_single_talitos_ptr(dev, &desc->ptr[5], |
| crypto_ahash_digestsize(tfm), |
| areq->result, DMA_FROM_DEVICE); |
| else |
| map_single_talitos_ptr(dev, &desc->ptr[5], |
| req_ctx->hw_context_size, |
| req_ctx->hw_context, DMA_FROM_DEVICE); |
| |
| /* last DWORD empty */ |
| desc->ptr[6] = zero_entry; |
| |
| if (is_sec1 && from_talitos_ptr_len(&desc->ptr[3], true) == 0) |
| talitos_handle_buggy_hash(ctx, edesc, &desc->ptr[3]); |
| |
| if (sync_needed) |
| dma_sync_single_for_device(dev, edesc->dma_link_tbl, |
| edesc->dma_len, DMA_BIDIRECTIONAL); |
| |
| ret = talitos_submit(dev, ctx->ch, desc, callback, areq); |
| if (ret != -EINPROGRESS) { |
| common_nonsnoop_hash_unmap(dev, edesc, areq); |
| kfree(edesc); |
| } |
| return ret; |
| } |
| |
| static struct talitos_edesc *ahash_edesc_alloc(struct ahash_request *areq, |
| unsigned int nbytes) |
| { |
| struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq); |
| struct talitos_ctx *ctx = crypto_ahash_ctx(tfm); |
| struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); |
| |
| return talitos_edesc_alloc(ctx->dev, req_ctx->psrc, NULL, NULL, 0, |
| nbytes, 0, 0, 0, areq->base.flags, false); |
| } |
| |
| static int ahash_init(struct ahash_request *areq) |
| { |
| struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq); |
| struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); |
| |
| /* Initialize the context */ |
| req_ctx->nbuf = 0; |
| req_ctx->first = 1; /* first indicates h/w must init its context */ |
| req_ctx->swinit = 0; /* assume h/w init of context */ |
| req_ctx->hw_context_size = |
| (crypto_ahash_digestsize(tfm) <= SHA256_DIGEST_SIZE) |
| ? TALITOS_MDEU_CONTEXT_SIZE_MD5_SHA1_SHA256 |
| : TALITOS_MDEU_CONTEXT_SIZE_SHA384_SHA512; |
| |
| return 0; |
| } |
| |
| /* |
| * on h/w without explicit sha224 support, we initialize h/w context |
| * manually with sha224 constants, and tell it to run sha256. |
| */ |
| static int ahash_init_sha224_swinit(struct ahash_request *areq) |
| { |
| struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); |
| |
| ahash_init(areq); |
| req_ctx->swinit = 1;/* prevent h/w initting context with sha256 values*/ |
| |
| req_ctx->hw_context[0] = SHA224_H0; |
| req_ctx->hw_context[1] = SHA224_H1; |
| req_ctx->hw_context[2] = SHA224_H2; |
| req_ctx->hw_context[3] = SHA224_H3; |
| req_ctx->hw_context[4] = SHA224_H4; |
| req_ctx->hw_context[5] = SHA224_H5; |
| req_ctx->hw_context[6] = SHA224_H6; |
| req_ctx->hw_context[7] = SHA224_H7; |
| |
| /* init 64-bit count */ |
| req_ctx->hw_context[8] = 0; |
| req_ctx->hw_context[9] = 0; |
| |
| return 0; |
| } |
| |
| static int ahash_process_req(struct ahash_request *areq, unsigned int nbytes) |
| { |
| struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq); |
| struct talitos_ctx *ctx = crypto_ahash_ctx(tfm); |
| struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); |
| struct talitos_edesc *edesc; |
| unsigned int blocksize = |
| crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm)); |
| unsigned int nbytes_to_hash; |
| unsigned int to_hash_later; |
| unsigned int nsg; |
| int nents; |
| |
| if (!req_ctx->last && (nbytes + req_ctx->nbuf <= blocksize)) { |
| /* Buffer up to one whole block */ |
| nents = sg_nents_for_len(areq->src, nbytes); |
| if (nents < 0) { |
| dev_err(ctx->dev, "Invalid number of src SG.\n"); |
| return nents; |
| } |
| sg_copy_to_buffer(areq->src, nents, |
| req_ctx->buf + req_ctx->nbuf, nbytes); |
| req_ctx->nbuf += nbytes; |
| return 0; |
| } |
| |
| /* At least (blocksize + 1) bytes are available to hash */ |
| nbytes_to_hash = nbytes + req_ctx->nbuf; |
| to_hash_later = nbytes_to_hash & (blocksize - 1); |
| |
| if (req_ctx->last) |
| to_hash_later = 0; |
| else if (to_hash_later) |
| /* There is a partial block. Hash the full block(s) now */ |
| nbytes_to_hash -= to_hash_later; |
| else { |
| /* Keep one block buffered */ |
| nbytes_to_hash -= blocksize; |
| to_hash_later = blocksize; |
| } |
| |
| /* Chain in any previously buffered data */ |
| if (req_ctx->nbuf) { |
| nsg = (req_ctx->nbuf < nbytes_to_hash) ? 2 : 1; |
| sg_init_table(req_ctx->bufsl, nsg); |
| sg_set_buf(req_ctx->bufsl, req_ctx->buf, req_ctx->nbuf); |
| if (nsg > 1) |
| sg_chain(req_ctx->bufsl, 2, areq->src); |
| req_ctx->psrc = req_ctx->bufsl; |
| } else |
| req_ctx->psrc = areq->src; |
| |
| if (to_hash_later) { |
| nents = sg_nents_for_len(areq->src, nbytes); |
| if (nents < 0) { |
| dev_err(ctx->dev, "Invalid number of src SG.\n"); |
| return nents; |
| } |
| sg_pcopy_to_buffer(areq->src, nents, |
| req_ctx->bufnext, |
| to_hash_later, |
| nbytes - to_hash_later); |
| } |
| req_ctx->to_hash_later = to_hash_later; |
| |
| /* Allocate extended descriptor */ |
| edesc = ahash_edesc_alloc(areq, nbytes_to_hash); |
| if (IS_ERR(edesc)) |
| return PTR_ERR(edesc); |
| |
| edesc->desc.hdr = ctx->desc_hdr_template; |
| |
| /* On last one, request SEC to pad; otherwise continue */ |
| if (req_ctx->last) |
| edesc->desc.hdr |= DESC_HDR_MODE0_MDEU_PAD; |
| else |
| edesc->desc.hdr |= DESC_HDR_MODE0_MDEU_CONT; |
| |
| /* request SEC to INIT hash. */ |
| if (req_ctx->first && !req_ctx->swinit) |
| edesc->desc.hdr |= DESC_HDR_MODE0_MDEU_INIT; |
| |
| /* When the tfm context has a keylen, it's an HMAC. |
| * A first or last (ie. not middle) descriptor must request HMAC. |
| */ |
| if (ctx->keylen && (req_ctx->first || req_ctx->last)) |
| edesc->desc.hdr |= DESC_HDR_MODE0_MDEU_HMAC; |
| |
| return common_nonsnoop_hash(edesc, areq, nbytes_to_hash, |
| ahash_done); |
| } |
| |
| static int ahash_update(struct ahash_request *areq) |
| { |
| struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); |
| |
| req_ctx->last = 0; |
| |
| return ahash_process_req(areq, areq->nbytes); |
| } |
| |
| static int ahash_final(struct ahash_request *areq) |
| { |
| struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); |
| |
| req_ctx->last = 1; |
| |
| return ahash_process_req(areq, 0); |
| } |
| |
| static int ahash_finup(struct ahash_request *areq) |
| { |
| struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); |
| |
| req_ctx->last = 1; |
| |
| return ahash_process_req(areq, areq->nbytes); |
| } |
| |
| static int ahash_digest(struct ahash_request *areq) |
| { |
| struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); |
| struct crypto_ahash *ahash = crypto_ahash_reqtfm(areq); |
| |
| ahash->init(areq); |
| req_ctx->last = 1; |
| |
| return ahash_process_req(areq, areq->nbytes); |
| } |
| |
| static int ahash_export(struct ahash_request *areq, void *out) |
| { |
| struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); |
| struct talitos_export_state *export = out; |
| |
| memcpy(export->hw_context, req_ctx->hw_context, |
| req_ctx->hw_context_size); |
| memcpy(export->buf, req_ctx->buf, req_ctx->nbuf); |
| export->swinit = req_ctx->swinit; |
| export->first = req_ctx->first; |
| export->last = req_ctx->last; |
| export->to_hash_later = req_ctx->to_hash_later; |
| export->nbuf = req_ctx->nbuf; |
| |
| return 0; |
| } |
| |
| static int ahash_import(struct ahash_request *areq, const void *in) |
| { |
| struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq); |
| struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq); |
| const struct talitos_export_state *export = in; |
| |
| memset(req_ctx, 0, sizeof(*req_ctx)); |
| req_ctx->hw_context_size = |
| (crypto_ahash_digestsize(tfm) <= SHA256_DIGEST_SIZE) |
| ? TALITOS_MDEU_CONTEXT_SIZE_MD5_SHA1_SHA256 |
| : TALITOS_MDEU_CONTEXT_SIZE_SHA384_SHA512; |
| memcpy(req_ctx->hw_context, export->hw_context, |
| req_ctx->hw_context_size); |
| memcpy(req_ctx->buf, export->buf, export->nbuf); |
| req_ctx->swinit = export->swinit; |
| req_ctx->first = export->first; |
| req_ctx->last = export->last; |
| req_ctx->to_hash_later = export->to_hash_later; |
| req_ctx->nbuf = export->nbuf; |
| |
| return 0; |
| } |
| |
| struct keyhash_result { |
| struct completion completion; |
| int err; |
| }; |
| |
| static void keyhash_complete(struct crypto_async_request *req, int err) |
| { |
| struct keyhash_result *res = req->data; |
| |
| if (err == -EINPROGRESS) |
| return; |
| |
| res->err = err; |
| complete(&res->completion); |
| } |
| |
| static int keyhash(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen, |
| u8 *hash) |
| { |
| struct talitos_ctx *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm)); |
| |
| struct scatterlist sg[1]; |
| struct ahash_request *req; |
| struct keyhash_result hresult; |
| int ret; |
| |
| init_completion(&hresult.completion); |
| |
| req = ahash_request_alloc(tfm, GFP_KERNEL); |
| if (!req) |
| return -ENOMEM; |
| |
| /* Keep tfm keylen == 0 during hash of the long key */ |
| ctx->keylen = 0; |
| ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, |
| keyhash_complete, &hresult); |
| |
| sg_init_one(&sg[0], key, keylen); |
| |
| ahash_request_set_crypt(req, sg, hash, keylen); |
| ret = crypto_ahash_digest(req); |
| switch (ret) { |
| case 0: |
| break; |
| case -EINPROGRESS: |
| case -EBUSY: |
| ret = wait_for_completion_interruptible( |
| &hresult.completion); |
| if (!ret) |
| ret = hresult.err; |
| break; |
| default: |
| break; |
| } |
| ahash_request_free(req); |
| |
| return ret; |
| } |
| |
| static int ahash_setkey(struct crypto_ahash *tfm, const u8 *key, |
| unsigned int keylen) |
| { |
| struct talitos_ctx *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm)); |
| unsigned int blocksize = |
| crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm)); |
| unsigned int digestsize = crypto_ahash_digestsize(tfm); |
| unsigned int keysize = keylen; |
| u8 hash[SHA512_DIGEST_SIZE]; |
| int ret; |
| |
| if (keylen <= blocksize) |
| memcpy(ctx->key, key, keysize); |
| else { |
| /* Must get the hash of the long key */ |
| ret = keyhash(tfm, key, keylen, hash); |
| |
| if (ret) { |
| crypto_ahash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN); |
| return -EINVAL; |
| } |
| |
| keysize = digestsize; |
| memcpy(ctx->key, hash, digestsize); |
| } |
| |
| ctx->keylen = keysize; |
| |
| return 0; |
| } |
| |
| |
| struct talitos_alg_template { |
| u32 type; |
| u32 priority; |
| union { |
| struct crypto_alg crypto; |
| struct ahash_alg hash; |
| struct aead_alg aead; |
| } alg; |
| __be32 desc_hdr_template; |
| }; |
| |
| static struct talitos_alg_template driver_algs[] = { |
| /* AEAD algorithms. These use a single-pass ipsec_esp descriptor */ |
| { .type = CRYPTO_ALG_TYPE_AEAD, |
| .alg.aead = { |
| .base = { |
| .cra_name = "authenc(hmac(sha1),cbc(aes))", |
| .cra_driver_name = "authenc-hmac-sha1-" |
| "cbc-aes-talitos", |
| .cra_blocksize = AES_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_ASYNC, |
| }, |
| .ivsize = AES_BLOCK_SIZE, |
| .maxauthsize = SHA1_DIGEST_SIZE, |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP | |
| DESC_HDR_SEL0_AESU | |
| DESC_HDR_MODE0_AESU_CBC | |
| DESC_HDR_SEL1_MDEUA | |
| DESC_HDR_MODE1_MDEU_INIT | |
| DESC_HDR_MODE1_MDEU_PAD | |
| DESC_HDR_MODE1_MDEU_SHA1_HMAC, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AEAD, |
| .priority = TALITOS_CRA_PRIORITY_AEAD_HSNA, |
| .alg.aead = { |
| .base = { |
| .cra_name = "authenc(hmac(sha1),cbc(aes))", |
| .cra_driver_name = "authenc-hmac-sha1-" |
| "cbc-aes-talitos", |
| .cra_blocksize = AES_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_ASYNC, |
| }, |
| .ivsize = AES_BLOCK_SIZE, |
| .maxauthsize = SHA1_DIGEST_SIZE, |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_HMAC_SNOOP_NO_AFEU | |
| DESC_HDR_SEL0_AESU | |
| DESC_HDR_MODE0_AESU_CBC | |
| DESC_HDR_SEL1_MDEUA | |
| DESC_HDR_MODE1_MDEU_INIT | |
| DESC_HDR_MODE1_MDEU_PAD | |
| DESC_HDR_MODE1_MDEU_SHA1_HMAC, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AEAD, |
| .alg.aead = { |
| .base = { |
| .cra_name = "authenc(hmac(sha1)," |
| "cbc(des3_ede))", |
| .cra_driver_name = "authenc-hmac-sha1-" |
| "cbc-3des-talitos", |
| .cra_blocksize = DES3_EDE_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_ASYNC, |
| }, |
| .ivsize = DES3_EDE_BLOCK_SIZE, |
| .maxauthsize = SHA1_DIGEST_SIZE, |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP | |
| DESC_HDR_SEL0_DEU | |
| DESC_HDR_MODE0_DEU_CBC | |
| DESC_HDR_MODE0_DEU_3DES | |
| DESC_HDR_SEL1_MDEUA | |
| DESC_HDR_MODE1_MDEU_INIT | |
| DESC_HDR_MODE1_MDEU_PAD | |
| DESC_HDR_MODE1_MDEU_SHA1_HMAC, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AEAD, |
| .priority = TALITOS_CRA_PRIORITY_AEAD_HSNA, |
| .alg.aead = { |
| .base = { |
| .cra_name = "authenc(hmac(sha1)," |
| "cbc(des3_ede))", |
| .cra_driver_name = "authenc-hmac-sha1-" |
| "cbc-3des-talitos", |
| .cra_blocksize = DES3_EDE_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_ASYNC, |
| }, |
| .ivsize = DES3_EDE_BLOCK_SIZE, |
| .maxauthsize = SHA1_DIGEST_SIZE, |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_HMAC_SNOOP_NO_AFEU | |
| DESC_HDR_SEL0_DEU | |
| DESC_HDR_MODE0_DEU_CBC | |
| DESC_HDR_MODE0_DEU_3DES | |
| DESC_HDR_SEL1_MDEUA | |
| DESC_HDR_MODE1_MDEU_INIT | |
| DESC_HDR_MODE1_MDEU_PAD | |
| DESC_HDR_MODE1_MDEU_SHA1_HMAC, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AEAD, |
| .alg.aead = { |
| .base = { |
| .cra_name = "authenc(hmac(sha224),cbc(aes))", |
| .cra_driver_name = "authenc-hmac-sha224-" |
| "cbc-aes-talitos", |
| .cra_blocksize = AES_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_ASYNC, |
| }, |
| .ivsize = AES_BLOCK_SIZE, |
| .maxauthsize = SHA224_DIGEST_SIZE, |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP | |
| DESC_HDR_SEL0_AESU | |
| DESC_HDR_MODE0_AESU_CBC | |
| DESC_HDR_SEL1_MDEUA | |
| DESC_HDR_MODE1_MDEU_INIT | |
| DESC_HDR_MODE1_MDEU_PAD | |
| DESC_HDR_MODE1_MDEU_SHA224_HMAC, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AEAD, |
| .priority = TALITOS_CRA_PRIORITY_AEAD_HSNA, |
| .alg.aead = { |
| .base = { |
| .cra_name = "authenc(hmac(sha224),cbc(aes))", |
| .cra_driver_name = "authenc-hmac-sha224-" |
| "cbc-aes-talitos", |
| .cra_blocksize = AES_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_ASYNC, |
| }, |
| .ivsize = AES_BLOCK_SIZE, |
| .maxauthsize = SHA224_DIGEST_SIZE, |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_HMAC_SNOOP_NO_AFEU | |
| DESC_HDR_SEL0_AESU | |
| DESC_HDR_MODE0_AESU_CBC | |
| DESC_HDR_SEL1_MDEUA | |
| DESC_HDR_MODE1_MDEU_INIT | |
| DESC_HDR_MODE1_MDEU_PAD | |
| DESC_HDR_MODE1_MDEU_SHA224_HMAC, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AEAD, |
| .alg.aead = { |
| .base = { |
| .cra_name = "authenc(hmac(sha224)," |
| "cbc(des3_ede))", |
| .cra_driver_name = "authenc-hmac-sha224-" |
| "cbc-3des-talitos", |
| .cra_blocksize = DES3_EDE_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_ASYNC, |
| }, |
| .ivsize = DES3_EDE_BLOCK_SIZE, |
| .maxauthsize = SHA224_DIGEST_SIZE, |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP | |
| DESC_HDR_SEL0_DEU | |
| DESC_HDR_MODE0_DEU_CBC | |
| DESC_HDR_MODE0_DEU_3DES | |
| DESC_HDR_SEL1_MDEUA | |
| DESC_HDR_MODE1_MDEU_INIT | |
| DESC_HDR_MODE1_MDEU_PAD | |
| DESC_HDR_MODE1_MDEU_SHA224_HMAC, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AEAD, |
| .priority = TALITOS_CRA_PRIORITY_AEAD_HSNA, |
| .alg.aead = { |
| .base = { |
| .cra_name = "authenc(hmac(sha224)," |
| "cbc(des3_ede))", |
| .cra_driver_name = "authenc-hmac-sha224-" |
| "cbc-3des-talitos", |
| .cra_blocksize = DES3_EDE_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_ASYNC, |
| }, |
| .ivsize = DES3_EDE_BLOCK_SIZE, |
| .maxauthsize = SHA224_DIGEST_SIZE, |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_HMAC_SNOOP_NO_AFEU | |
| DESC_HDR_SEL0_DEU | |
| DESC_HDR_MODE0_DEU_CBC | |
| DESC_HDR_MODE0_DEU_3DES | |
| DESC_HDR_SEL1_MDEUA | |
| DESC_HDR_MODE1_MDEU_INIT | |
| DESC_HDR_MODE1_MDEU_PAD | |
| DESC_HDR_MODE1_MDEU_SHA224_HMAC, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AEAD, |
| .alg.aead = { |
| .base = { |
| .cra_name = "authenc(hmac(sha256),cbc(aes))", |
| .cra_driver_name = "authenc-hmac-sha256-" |
| "cbc-aes-talitos", |
| .cra_blocksize = AES_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_ASYNC, |
| }, |
| .ivsize = AES_BLOCK_SIZE, |
| .maxauthsize = SHA256_DIGEST_SIZE, |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP | |
| DESC_HDR_SEL0_AESU | |
| DESC_HDR_MODE0_AESU_CBC | |
| DESC_HDR_SEL1_MDEUA | |
| DESC_HDR_MODE1_MDEU_INIT | |
| DESC_HDR_MODE1_MDEU_PAD | |
| DESC_HDR_MODE1_MDEU_SHA256_HMAC, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AEAD, |
| .priority = TALITOS_CRA_PRIORITY_AEAD_HSNA, |
| .alg.aead = { |
| .base = { |
| .cra_name = "authenc(hmac(sha256),cbc(aes))", |
| .cra_driver_name = "authenc-hmac-sha256-" |
| "cbc-aes-talitos", |
| .cra_blocksize = AES_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_ASYNC, |
| }, |
| .ivsize = AES_BLOCK_SIZE, |
| .maxauthsize = SHA256_DIGEST_SIZE, |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_HMAC_SNOOP_NO_AFEU | |
| DESC_HDR_SEL0_AESU | |
| DESC_HDR_MODE0_AESU_CBC | |
| DESC_HDR_SEL1_MDEUA | |
| DESC_HDR_MODE1_MDEU_INIT | |
| DESC_HDR_MODE1_MDEU_PAD | |
| DESC_HDR_MODE1_MDEU_SHA256_HMAC, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AEAD, |
| .alg.aead = { |
| .base = { |
| .cra_name = "authenc(hmac(sha256)," |
| "cbc(des3_ede))", |
| .cra_driver_name = "authenc-hmac-sha256-" |
| "cbc-3des-talitos", |
| .cra_blocksize = DES3_EDE_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_ASYNC, |
| }, |
| .ivsize = DES3_EDE_BLOCK_SIZE, |
| .maxauthsize = SHA256_DIGEST_SIZE, |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP | |
| DESC_HDR_SEL0_DEU | |
| DESC_HDR_MODE0_DEU_CBC | |
| DESC_HDR_MODE0_DEU_3DES | |
| DESC_HDR_SEL1_MDEUA | |
| DESC_HDR_MODE1_MDEU_INIT | |
| DESC_HDR_MODE1_MDEU_PAD | |
| DESC_HDR_MODE1_MDEU_SHA256_HMAC, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AEAD, |
| .priority = TALITOS_CRA_PRIORITY_AEAD_HSNA, |
| .alg.aead = { |
| .base = { |
| .cra_name = "authenc(hmac(sha256)," |
| "cbc(des3_ede))", |
| .cra_driver_name = "authenc-hmac-sha256-" |
| "cbc-3des-talitos", |
| .cra_blocksize = DES3_EDE_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_ASYNC, |
| }, |
| .ivsize = DES3_EDE_BLOCK_SIZE, |
| .maxauthsize = SHA256_DIGEST_SIZE, |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_HMAC_SNOOP_NO_AFEU | |
| DESC_HDR_SEL0_DEU | |
| DESC_HDR_MODE0_DEU_CBC | |
| DESC_HDR_MODE0_DEU_3DES | |
| DESC_HDR_SEL1_MDEUA | |
| DESC_HDR_MODE1_MDEU_INIT | |
| DESC_HDR_MODE1_MDEU_PAD | |
| DESC_HDR_MODE1_MDEU_SHA256_HMAC, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AEAD, |
| .alg.aead = { |
| .base = { |
| .cra_name = "authenc(hmac(sha384),cbc(aes))", |
| .cra_driver_name = "authenc-hmac-sha384-" |
| "cbc-aes-talitos", |
| .cra_blocksize = AES_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_ASYNC, |
| }, |
| .ivsize = AES_BLOCK_SIZE, |
| .maxauthsize = SHA384_DIGEST_SIZE, |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP | |
| DESC_HDR_SEL0_AESU | |
| DESC_HDR_MODE0_AESU_CBC | |
| DESC_HDR_SEL1_MDEUB | |
| DESC_HDR_MODE1_MDEU_INIT | |
| DESC_HDR_MODE1_MDEU_PAD | |
| DESC_HDR_MODE1_MDEUB_SHA384_HMAC, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AEAD, |
| .alg.aead = { |
| .base = { |
| .cra_name = "authenc(hmac(sha384)," |
| "cbc(des3_ede))", |
| .cra_driver_name = "authenc-hmac-sha384-" |
| "cbc-3des-talitos", |
| .cra_blocksize = DES3_EDE_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_ASYNC, |
| }, |
| .ivsize = DES3_EDE_BLOCK_SIZE, |
| .maxauthsize = SHA384_DIGEST_SIZE, |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP | |
| DESC_HDR_SEL0_DEU | |
| DESC_HDR_MODE0_DEU_CBC | |
| DESC_HDR_MODE0_DEU_3DES | |
| DESC_HDR_SEL1_MDEUB | |
| DESC_HDR_MODE1_MDEU_INIT | |
| DESC_HDR_MODE1_MDEU_PAD | |
| DESC_HDR_MODE1_MDEUB_SHA384_HMAC, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AEAD, |
| .alg.aead = { |
| .base = { |
| .cra_name = "authenc(hmac(sha512),cbc(aes))", |
| .cra_driver_name = "authenc-hmac-sha512-" |
| "cbc-aes-talitos", |
| .cra_blocksize = AES_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_ASYNC, |
| }, |
| .ivsize = AES_BLOCK_SIZE, |
| .maxauthsize = SHA512_DIGEST_SIZE, |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP | |
| DESC_HDR_SEL0_AESU | |
| DESC_HDR_MODE0_AESU_CBC | |
| DESC_HDR_SEL1_MDEUB | |
| DESC_HDR_MODE1_MDEU_INIT | |
| DESC_HDR_MODE1_MDEU_PAD | |
| DESC_HDR_MODE1_MDEUB_SHA512_HMAC, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AEAD, |
| .alg.aead = { |
| .base = { |
| .cra_name = "authenc(hmac(sha512)," |
| "cbc(des3_ede))", |
| .cra_driver_name = "authenc-hmac-sha512-" |
| "cbc-3des-talitos", |
| .cra_blocksize = DES3_EDE_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_ASYNC, |
| }, |
| .ivsize = DES3_EDE_BLOCK_SIZE, |
| .maxauthsize = SHA512_DIGEST_SIZE, |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP | |
| DESC_HDR_SEL0_DEU | |
| DESC_HDR_MODE0_DEU_CBC | |
| DESC_HDR_MODE0_DEU_3DES | |
| DESC_HDR_SEL1_MDEUB | |
| DESC_HDR_MODE1_MDEU_INIT | |
| DESC_HDR_MODE1_MDEU_PAD | |
| DESC_HDR_MODE1_MDEUB_SHA512_HMAC, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AEAD, |
| .alg.aead = { |
| .base = { |
| .cra_name = "authenc(hmac(md5),cbc(aes))", |
| .cra_driver_name = "authenc-hmac-md5-" |
| "cbc-aes-talitos", |
| .cra_blocksize = AES_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_ASYNC, |
| }, |
| .ivsize = AES_BLOCK_SIZE, |
| .maxauthsize = MD5_DIGEST_SIZE, |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP | |
| DESC_HDR_SEL0_AESU | |
| DESC_HDR_MODE0_AESU_CBC | |
| DESC_HDR_SEL1_MDEUA | |
| DESC_HDR_MODE1_MDEU_INIT | |
| DESC_HDR_MODE1_MDEU_PAD | |
| DESC_HDR_MODE1_MDEU_MD5_HMAC, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AEAD, |
| .priority = TALITOS_CRA_PRIORITY_AEAD_HSNA, |
| .alg.aead = { |
| .base = { |
| .cra_name = "authenc(hmac(md5),cbc(aes))", |
| .cra_driver_name = "authenc-hmac-md5-" |
| "cbc-aes-talitos", |
| .cra_blocksize = AES_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_ASYNC, |
| }, |
| .ivsize = AES_BLOCK_SIZE, |
| .maxauthsize = MD5_DIGEST_SIZE, |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_HMAC_SNOOP_NO_AFEU | |
| DESC_HDR_SEL0_AESU | |
| DESC_HDR_MODE0_AESU_CBC | |
| DESC_HDR_SEL1_MDEUA | |
| DESC_HDR_MODE1_MDEU_INIT | |
| DESC_HDR_MODE1_MDEU_PAD | |
| DESC_HDR_MODE1_MDEU_MD5_HMAC, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AEAD, |
| .alg.aead = { |
| .base = { |
| .cra_name = "authenc(hmac(md5),cbc(des3_ede))", |
| .cra_driver_name = "authenc-hmac-md5-" |
| "cbc-3des-talitos", |
| .cra_blocksize = DES3_EDE_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_ASYNC, |
| }, |
| .ivsize = DES3_EDE_BLOCK_SIZE, |
| .maxauthsize = MD5_DIGEST_SIZE, |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP | |
| DESC_HDR_SEL0_DEU | |
| DESC_HDR_MODE0_DEU_CBC | |
| DESC_HDR_MODE0_DEU_3DES | |
| DESC_HDR_SEL1_MDEUA | |
| DESC_HDR_MODE1_MDEU_INIT | |
| DESC_HDR_MODE1_MDEU_PAD | |
| DESC_HDR_MODE1_MDEU_MD5_HMAC, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AEAD, |
| .priority = TALITOS_CRA_PRIORITY_AEAD_HSNA, |
| .alg.aead = { |
| .base = { |
| .cra_name = "authenc(hmac(md5),cbc(des3_ede))", |
| .cra_driver_name = "authenc-hmac-md5-" |
| "cbc-3des-talitos", |
| .cra_blocksize = DES3_EDE_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_ASYNC, |
| }, |
| .ivsize = DES3_EDE_BLOCK_SIZE, |
| .maxauthsize = MD5_DIGEST_SIZE, |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_HMAC_SNOOP_NO_AFEU | |
| DESC_HDR_SEL0_DEU | |
| DESC_HDR_MODE0_DEU_CBC | |
| DESC_HDR_MODE0_DEU_3DES | |
| DESC_HDR_SEL1_MDEUA | |
| DESC_HDR_MODE1_MDEU_INIT | |
| DESC_HDR_MODE1_MDEU_PAD | |
| DESC_HDR_MODE1_MDEU_MD5_HMAC, |
| }, |
| /* ABLKCIPHER algorithms. */ |
| { .type = CRYPTO_ALG_TYPE_ABLKCIPHER, |
| .alg.crypto = { |
| .cra_name = "ecb(aes)", |
| .cra_driver_name = "ecb-aes-talitos", |
| .cra_blocksize = AES_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | |
| CRYPTO_ALG_ASYNC, |
| .cra_ablkcipher = { |
| .min_keysize = AES_MIN_KEY_SIZE, |
| .max_keysize = AES_MAX_KEY_SIZE, |
| .ivsize = AES_BLOCK_SIZE, |
| } |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| DESC_HDR_SEL0_AESU, |
| }, |
| { .type = CRYPTO_ALG_TYPE_ABLKCIPHER, |
| .alg.crypto = { |
| .cra_name = "cbc(aes)", |
| .cra_driver_name = "cbc-aes-talitos", |
| .cra_blocksize = AES_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | |
| CRYPTO_ALG_ASYNC, |
| .cra_ablkcipher = { |
| .min_keysize = AES_MIN_KEY_SIZE, |
| .max_keysize = AES_MAX_KEY_SIZE, |
| .ivsize = AES_BLOCK_SIZE, |
| } |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| DESC_HDR_SEL0_AESU | |
| DESC_HDR_MODE0_AESU_CBC, |
| }, |
| { .type = CRYPTO_ALG_TYPE_ABLKCIPHER, |
| .alg.crypto = { |
| .cra_name = "ctr(aes)", |
| .cra_driver_name = "ctr-aes-talitos", |
| .cra_blocksize = AES_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | |
| CRYPTO_ALG_ASYNC, |
| .cra_ablkcipher = { |
| .min_keysize = AES_MIN_KEY_SIZE, |
| .max_keysize = AES_MAX_KEY_SIZE, |
| .ivsize = AES_BLOCK_SIZE, |
| } |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| DESC_HDR_SEL0_AESU | |
| DESC_HDR_MODE0_AESU_CTR, |
| }, |
| { .type = CRYPTO_ALG_TYPE_ABLKCIPHER, |
| .alg.crypto = { |
| .cra_name = "ecb(des)", |
| .cra_driver_name = "ecb-des-talitos", |
| .cra_blocksize = DES_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | |
| CRYPTO_ALG_ASYNC, |
| .cra_ablkcipher = { |
| .min_keysize = DES_KEY_SIZE, |
| .max_keysize = DES_KEY_SIZE, |
| .ivsize = DES_BLOCK_SIZE, |
| } |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| DESC_HDR_SEL0_DEU, |
| }, |
| { .type = CRYPTO_ALG_TYPE_ABLKCIPHER, |
| .alg.crypto = { |
| .cra_name = "cbc(des)", |
| .cra_driver_name = "cbc-des-talitos", |
| .cra_blocksize = DES_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | |
| CRYPTO_ALG_ASYNC, |
| .cra_ablkcipher = { |
| .min_keysize = DES_KEY_SIZE, |
| .max_keysize = DES_KEY_SIZE, |
| .ivsize = DES_BLOCK_SIZE, |
| } |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| DESC_HDR_SEL0_DEU | |
| DESC_HDR_MODE0_DEU_CBC, |
| }, |
| { .type = CRYPTO_ALG_TYPE_ABLKCIPHER, |
| .alg.crypto = { |
| .cra_name = "ecb(des3_ede)", |
| .cra_driver_name = "ecb-3des-talitos", |
| .cra_blocksize = DES3_EDE_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | |
| CRYPTO_ALG_ASYNC, |
| .cra_ablkcipher = { |
| .min_keysize = DES3_EDE_KEY_SIZE, |
| .max_keysize = DES3_EDE_KEY_SIZE, |
| .ivsize = DES3_EDE_BLOCK_SIZE, |
| } |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| DESC_HDR_SEL0_DEU | |
| DESC_HDR_MODE0_DEU_3DES, |
| }, |
| { .type = CRYPTO_ALG_TYPE_ABLKCIPHER, |
| .alg.crypto = { |
| .cra_name = "cbc(des3_ede)", |
| .cra_driver_name = "cbc-3des-talitos", |
| .cra_blocksize = DES3_EDE_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | |
| CRYPTO_ALG_ASYNC, |
| .cra_ablkcipher = { |
| .min_keysize = DES3_EDE_KEY_SIZE, |
| .max_keysize = DES3_EDE_KEY_SIZE, |
| .ivsize = DES3_EDE_BLOCK_SIZE, |
| } |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| DESC_HDR_SEL0_DEU | |
| DESC_HDR_MODE0_DEU_CBC | |
| DESC_HDR_MODE0_DEU_3DES, |
| }, |
| /* AHASH algorithms. */ |
| { .type = CRYPTO_ALG_TYPE_AHASH, |
| .alg.hash = { |
| .halg.digestsize = MD5_DIGEST_SIZE, |
| .halg.statesize = sizeof(struct talitos_export_state), |
| .halg.base = { |
| .cra_name = "md5", |
| .cra_driver_name = "md5-talitos", |
| .cra_blocksize = MD5_HMAC_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_TYPE_AHASH | |
| CRYPTO_ALG_ASYNC, |
| } |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| DESC_HDR_SEL0_MDEUA | |
| DESC_HDR_MODE0_MDEU_MD5, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AHASH, |
| .alg.hash = { |
| .halg.digestsize = SHA1_DIGEST_SIZE, |
| .halg.statesize = sizeof(struct talitos_export_state), |
| .halg.base = { |
| .cra_name = "sha1", |
| .cra_driver_name = "sha1-talitos", |
| .cra_blocksize = SHA1_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_TYPE_AHASH | |
| CRYPTO_ALG_ASYNC, |
| } |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| DESC_HDR_SEL0_MDEUA | |
| DESC_HDR_MODE0_MDEU_SHA1, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AHASH, |
| .alg.hash = { |
| .halg.digestsize = SHA224_DIGEST_SIZE, |
| .halg.statesize = sizeof(struct talitos_export_state), |
| .halg.base = { |
| .cra_name = "sha224", |
| .cra_driver_name = "sha224-talitos", |
| .cra_blocksize = SHA224_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_TYPE_AHASH | |
| CRYPTO_ALG_ASYNC, |
| } |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| DESC_HDR_SEL0_MDEUA | |
| DESC_HDR_MODE0_MDEU_SHA224, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AHASH, |
| .alg.hash = { |
| .halg.digestsize = SHA256_DIGEST_SIZE, |
| .halg.statesize = sizeof(struct talitos_export_state), |
| .halg.base = { |
| .cra_name = "sha256", |
| .cra_driver_name = "sha256-talitos", |
| .cra_blocksize = SHA256_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_TYPE_AHASH | |
| CRYPTO_ALG_ASYNC, |
| } |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| DESC_HDR_SEL0_MDEUA | |
| DESC_HDR_MODE0_MDEU_SHA256, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AHASH, |
| .alg.hash = { |
| .halg.digestsize = SHA384_DIGEST_SIZE, |
| .halg.statesize = sizeof(struct talitos_export_state), |
| .halg.base = { |
| .cra_name = "sha384", |
| .cra_driver_name = "sha384-talitos", |
| .cra_blocksize = SHA384_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_TYPE_AHASH | |
| CRYPTO_ALG_ASYNC, |
| } |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| DESC_HDR_SEL0_MDEUB | |
| DESC_HDR_MODE0_MDEUB_SHA384, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AHASH, |
| .alg.hash = { |
| .halg.digestsize = SHA512_DIGEST_SIZE, |
| .halg.statesize = sizeof(struct talitos_export_state), |
| .halg.base = { |
| .cra_name = "sha512", |
| .cra_driver_name = "sha512-talitos", |
| .cra_blocksize = SHA512_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_TYPE_AHASH | |
| CRYPTO_ALG_ASYNC, |
| } |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| DESC_HDR_SEL0_MDEUB | |
| DESC_HDR_MODE0_MDEUB_SHA512, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AHASH, |
| .alg.hash = { |
| .halg.digestsize = MD5_DIGEST_SIZE, |
| .halg.statesize = sizeof(struct talitos_export_state), |
| .halg.base = { |
| .cra_name = "hmac(md5)", |
| .cra_driver_name = "hmac-md5-talitos", |
| .cra_blocksize = MD5_HMAC_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_TYPE_AHASH | |
| CRYPTO_ALG_ASYNC, |
| } |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| DESC_HDR_SEL0_MDEUA | |
| DESC_HDR_MODE0_MDEU_MD5, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AHASH, |
| .alg.hash = { |
| .halg.digestsize = SHA1_DIGEST_SIZE, |
| .halg.statesize = sizeof(struct talitos_export_state), |
| .halg.base = { |
| .cra_name = "hmac(sha1)", |
| .cra_driver_name = "hmac-sha1-talitos", |
| .cra_blocksize = SHA1_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_TYPE_AHASH | |
| CRYPTO_ALG_ASYNC, |
| } |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| DESC_HDR_SEL0_MDEUA | |
| DESC_HDR_MODE0_MDEU_SHA1, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AHASH, |
| .alg.hash = { |
| .halg.digestsize = SHA224_DIGEST_SIZE, |
| .halg.statesize = sizeof(struct talitos_export_state), |
| .halg.base = { |
| .cra_name = "hmac(sha224)", |
| .cra_driver_name = "hmac-sha224-talitos", |
| .cra_blocksize = SHA224_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_TYPE_AHASH | |
| CRYPTO_ALG_ASYNC, |
| } |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| DESC_HDR_SEL0_MDEUA | |
| DESC_HDR_MODE0_MDEU_SHA224, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AHASH, |
| .alg.hash = { |
| .halg.digestsize = SHA256_DIGEST_SIZE, |
| .halg.statesize = sizeof(struct talitos_export_state), |
| .halg.base = { |
| .cra_name = "hmac(sha256)", |
| .cra_driver_name = "hmac-sha256-talitos", |
| .cra_blocksize = SHA256_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_TYPE_AHASH | |
| CRYPTO_ALG_ASYNC, |
| } |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| DESC_HDR_SEL0_MDEUA | |
| DESC_HDR_MODE0_MDEU_SHA256, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AHASH, |
| .alg.hash = { |
| .halg.digestsize = SHA384_DIGEST_SIZE, |
| .halg.statesize = sizeof(struct talitos_export_state), |
| .halg.base = { |
| .cra_name = "hmac(sha384)", |
| .cra_driver_name = "hmac-sha384-talitos", |
| .cra_blocksize = SHA384_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_TYPE_AHASH | |
| CRYPTO_ALG_ASYNC, |
| } |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| DESC_HDR_SEL0_MDEUB | |
| DESC_HDR_MODE0_MDEUB_SHA384, |
| }, |
| { .type = CRYPTO_ALG_TYPE_AHASH, |
| .alg.hash = { |
| .halg.digestsize = SHA512_DIGEST_SIZE, |
| .halg.statesize = sizeof(struct talitos_export_state), |
| .halg.base = { |
| .cra_name = "hmac(sha512)", |
| .cra_driver_name = "hmac-sha512-talitos", |
| .cra_blocksize = SHA512_BLOCK_SIZE, |
| .cra_flags = CRYPTO_ALG_TYPE_AHASH | |
| CRYPTO_ALG_ASYNC, |
| } |
| }, |
| .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| DESC_HDR_SEL0_MDEUB | |
| DESC_HDR_MODE0_MDEUB_SHA512, |
| } |
| }; |
| |
| struct talitos_crypto_alg { |
| struct list_head entry; |
| struct device *dev; |
| struct talitos_alg_template algt; |
| }; |
| |
| static int talitos_init_common(struct talitos_ctx *ctx, |
| struct talitos_crypto_alg *talitos_alg) |
| { |
| struct talitos_private *priv; |
| |
| /* update context with ptr to dev */ |
| ctx->dev = talitos_alg->dev; |
| |
| /* assign SEC channel to tfm in round-robin fashion */ |
| priv = dev_get_drvdata(ctx->dev); |
| ctx->ch = atomic_inc_return(&priv->last_chan) & |
| (priv->num_channels - 1); |
| |
| /* copy descriptor header template value */ |
| ctx->desc_hdr_template = talitos_alg->algt.desc_hdr_template; |
| |
| /* select done notification */ |
| ctx->desc_hdr_template |= DESC_HDR_DONE_NOTIFY; |
| |
| return 0; |
| } |
| |
| static int talitos_cra_init(struct crypto_tfm *tfm) |
| { |
| struct crypto_alg *alg = tfm->__crt_alg; |
| struct talitos_crypto_alg *talitos_alg; |
| struct talitos_ctx *ctx = crypto_tfm_ctx(tfm); |
| |
| if ((alg->cra_flags & CRYPTO_ALG_TYPE_MASK) == CRYPTO_ALG_TYPE_AHASH) |
| talitos_alg = container_of(__crypto_ahash_alg(alg), |
| struct talitos_crypto_alg, |
| algt.alg.hash); |
| else |
| talitos_alg = container_of(alg, struct talitos_crypto_alg, |
| algt.alg.crypto); |
| |
| return talitos_init_common(ctx, talitos_alg); |
| } |
| |
| static int talitos_cra_init_aead(struct crypto_aead *tfm) |
| { |
| struct aead_alg *alg = crypto_aead_alg(tfm); |
| struct talitos_crypto_alg *talitos_alg; |
| struct talitos_ctx *ctx = crypto_aead_ctx(tfm); |
| |
| talitos_alg = container_of(alg, struct talitos_crypto_alg, |
| algt.alg.aead); |
| |
| return talitos_init_common(ctx, talitos_alg); |
| } |
| |
| static int talitos_cra_init_ahash(struct crypto_tfm *tfm) |
| { |
| struct talitos_ctx *ctx = crypto_tfm_ctx(tfm); |
| |
| talitos_cra_init(tfm); |
| |
| ctx->keylen = 0; |
| crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm), |
| sizeof(struct talitos_ahash_req_ctx)); |
| |
| return 0; |
| } |
| |
| /* |
| * given the alg's descriptor header template, determine whether descriptor |
| * type and primary/secondary execution units required match the hw |
| * capabilities description provided in the device tree node. |
| */ |
| static int hw_supports(struct device *dev, __be32 desc_hdr_template) |
| { |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| int ret; |
| |
| ret = (1 << DESC_TYPE(desc_hdr_template) & priv->desc_types) && |
| (1 << PRIMARY_EU(desc_hdr_template) & priv->exec_units); |
| |
| if (SECONDARY_EU(desc_hdr_template)) |
| ret = ret && (1 << SECONDARY_EU(desc_hdr_template) |
| & priv->exec_units); |
| |
| return ret; |
| } |
| |
| static int talitos_remove(struct platform_device *ofdev) |
| { |
| struct device *dev = &ofdev->dev; |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| struct talitos_crypto_alg *t_alg, *n; |
| int i; |
| |
| list_for_each_entry_safe(t_alg, n, &priv->alg_list, entry) { |
| switch (t_alg->algt.type) { |
| case CRYPTO_ALG_TYPE_ABLKCIPHER: |
| break; |
| case CRYPTO_ALG_TYPE_AEAD: |
| crypto_unregister_aead(&t_alg->algt.alg.aead); |
| case CRYPTO_ALG_TYPE_AHASH: |
| crypto_unregister_ahash(&t_alg->algt.alg.hash); |
| break; |
| } |
| list_del(&t_alg->entry); |
| kfree(t_alg); |
| } |
| |
| if (hw_supports(dev, DESC_HDR_SEL0_RNG)) |
| talitos_unregister_rng(dev); |
| |
| for (i = 0; priv->chan && i < priv->num_channels; i++) |
| kfree(priv->chan[i].fifo); |
| |
| kfree(priv->chan); |
| |
| for (i = 0; i < 2; i++) |
| if (priv->irq[i]) { |
| free_irq(priv->irq[i], dev); |
| irq_dispose_mapping(priv->irq[i]); |
| } |
| |
| tasklet_kill(&priv->done_task[0]); |
| if (priv->irq[1]) |
| tasklet_kill(&priv->done_task[1]); |
| |
| iounmap(priv->reg); |
| |
| kfree(priv); |
| |
| return 0; |
| } |
| |
| static struct talitos_crypto_alg *talitos_alg_alloc(struct device *dev, |
| struct talitos_alg_template |
| *template) |
| { |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| struct talitos_crypto_alg *t_alg; |
| struct crypto_alg *alg; |
| |
| t_alg = kzalloc(sizeof(struct talitos_crypto_alg), GFP_KERNEL); |
| if (!t_alg) |
| return ERR_PTR(-ENOMEM); |
| |
| t_alg->algt = *template; |
| |
| switch (t_alg->algt.type) { |
| case CRYPTO_ALG_TYPE_ABLKCIPHER: |
| alg = &t_alg->algt.alg.crypto; |
| alg->cra_init = talitos_cra_init; |
| alg->cra_type = &crypto_ablkcipher_type; |
| alg->cra_ablkcipher.setkey = ablkcipher_setkey; |
| alg->cra_ablkcipher.encrypt = ablkcipher_encrypt; |
| alg->cra_ablkcipher.decrypt = ablkcipher_decrypt; |
| alg->cra_ablkcipher.geniv = "eseqiv"; |
| break; |
| case CRYPTO_ALG_TYPE_AEAD: |
| alg = &t_alg->algt.alg.aead.base; |
| t_alg->algt.alg.aead.init = talitos_cra_init_aead; |
| t_alg->algt.alg.aead.setkey = aead_setkey; |
| t_alg->algt.alg.aead.encrypt = aead_encrypt; |
| t_alg->algt.alg.aead.decrypt = aead_decrypt; |
| break; |
| case CRYPTO_ALG_TYPE_AHASH: |
| alg = &t_alg->algt.alg.hash.halg.base; |
| alg->cra_init = talitos_cra_init_ahash; |
| alg->cra_type = &crypto_ahash_type; |
| t_alg->algt.alg.hash.init = ahash_init; |
| t_alg->algt.alg.hash.update = ahash_update; |
| t_alg->algt.alg.hash.final = ahash_final; |
| t_alg->algt.alg.hash.finup = ahash_finup; |
| t_alg->algt.alg.hash.digest = ahash_digest; |
| t_alg->algt.alg.hash.setkey = ahash_setkey; |
| t_alg->algt.alg.hash.import = ahash_import; |
| t_alg->algt.alg.hash.export = ahash_export; |
| |
| if (!(priv->features & TALITOS_FTR_HMAC_OK) && |
| !strncmp(alg->cra_name, "hmac", 4)) { |
| kfree(t_alg); |
| return ERR_PTR(-ENOTSUPP); |
| } |
| if (!(priv->features & TALITOS_FTR_SHA224_HWINIT) && |
| (!strcmp(alg->cra_name, "sha224") || |
| !strcmp(alg->cra_name, "hmac(sha224)"))) { |
| t_alg->algt.alg.hash.init = ahash_init_sha224_swinit; |
| t_alg->algt.desc_hdr_template = |
| DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | |
| DESC_HDR_SEL0_MDEUA | |
| DESC_HDR_MODE0_MDEU_SHA256; |
| } |
| break; |
| default: |
| dev_err(dev, "unknown algorithm type %d\n", t_alg->algt.type); |
| kfree(t_alg); |
| return ERR_PTR(-EINVAL); |
| } |
| |
| alg->cra_module = THIS_MODULE; |
| if (t_alg->algt.priority) |
| alg->cra_priority = t_alg->algt.priority; |
| else |
| alg->cra_priority = TALITOS_CRA_PRIORITY; |
| alg->cra_alignmask = 0; |
| alg->cra_ctxsize = sizeof(struct talitos_ctx); |
| alg->cra_flags |= CRYPTO_ALG_KERN_DRIVER_ONLY; |
| |
| t_alg->dev = dev; |
| |
| return t_alg; |
| } |
| |
| static int talitos_probe_irq(struct platform_device *ofdev) |
| { |
| struct device *dev = &ofdev->dev; |
| struct device_node *np = ofdev->dev.of_node; |
| struct talitos_private *priv = dev_get_drvdata(dev); |
| int err; |
| bool is_sec1 = has_ftr_sec1(priv); |
| |
| priv->irq[0] = irq_of_parse_and_map(np, 0); |
| if (!priv->irq[0]) { |
| dev_err(dev, "failed to map irq\n"); |
| return -EINVAL; |
| } |
| if (is_sec1) { |
| err = request_irq(priv->irq[0], talitos1_interrupt_4ch, 0, |
| dev_driver_string(dev), dev); |
| goto primary_out; |
| } |
| |
| priv->irq[1] = irq_of_parse_and_map(np, 1); |
| |
| /* get the primary irq line */ |
| if (!priv->irq[1]) { |
| err = request_irq(priv->irq[0], talitos2_interrupt_4ch, 0, |
| dev_driver_string(dev), dev); |
| goto primary_out; |
| } |
| |
| err = request_irq(priv->irq[0], talitos2_interrupt_ch0_2, 0, |
| dev_driver_string(dev), dev); |
| if (err) |
| goto primary_out; |
| |
| /* get the secondary irq line */ |
| err = request_irq(priv->irq[1], talitos2_interrupt_ch1_3, 0, |
| dev_driver_string(dev), dev); |
| if (err) { |
| dev_err(dev, "failed to request secondary irq\n"); |
| irq_dispose_mapping(priv->irq[1]); |
| priv->irq[1] = 0; |
| } |
| |
| return err; |
| |
| primary_out: |
| if (err) { |
| dev_err(dev, "failed to request primary irq\n"); |
| irq_dispose_mapping(priv->irq[0]); |
| priv->irq[0] = 0; |
| } |
| |
| return err; |
| } |
| |
| static int talitos_probe(struct platform_device *ofdev) |
| { |
| struct device *dev = &ofdev->dev; |
| struct device_node *np = ofdev->dev.of_node; |
| struct talitos_private *priv; |
| const unsigned int *prop; |
| int i, err; |
| int stride; |
| |
| priv = kzalloc(sizeof(struct talitos_private), GFP_KERNEL); |
| if (!priv) |
| return -ENOMEM; |
| |
| INIT_LIST_HEAD(&priv->alg_list); |
| |
| dev_set_drvdata(dev, priv); |
| |
| priv->ofdev = ofdev; |
| |
| spin_lock_init(&priv->reg_lock); |
| |
| priv->reg = of_iomap(np, 0); |
| if (!priv->reg) { |
| dev_err(dev, "failed to of_iomap\n"); |
| err = -ENOMEM; |
| goto err_out; |
| } |
| |
| /* get SEC version capabilities from device tree */ |
| prop = of_get_property(np, "fsl,num-channels", NULL); |
| if (prop) |
| priv->num_channels = *prop; |
| |
| prop = of_get_property(np, "fsl,channel-fifo-len", NULL); |
| if (prop) |
| priv->chfifo_len = *prop; |
| |
| prop = of_get_property(np, "fsl,exec-units-mask", NULL); |
| if (prop) |
| priv->exec_units = *prop; |
| |
| prop = of_get_property(np, "fsl,descriptor-types-mask", NULL); |
| if (prop) |
| priv->desc_types = *prop; |
| |
| if (!is_power_of_2(priv->num_channels) || !priv->chfifo_len || |
| !priv->exec_units || !priv->desc_types) { |
| dev_err(dev, "invalid property data in device tree node\n"); |
| err = -EINVAL; |
| goto err_out; |
| } |
| |
| if (of_device_is_compatible(np, "fsl,sec3.0")) |
| priv->features |= TALITOS_FTR_SRC_LINK_TBL_LEN_INCLUDES_EXTENT; |
| |
| if (of_device_is_compatible(np, "fsl,sec2.1")) |
| priv->features |= TALITOS_FTR_HW_AUTH_CHECK | |
| TALITOS_FTR_SHA224_HWINIT | |
| TALITOS_FTR_HMAC_OK; |
| |
| if (of_device_is_compatible(np, "fsl,sec1.0")) |
| priv->features |= TALITOS_FTR_SEC1; |
| |
| if (of_device_is_compatible(np, "fsl,sec1.2")) { |
| priv->reg_deu = priv->reg + TALITOS12_DEU; |
| priv->reg_aesu = priv->reg + TALITOS12_AESU; |
| priv->reg_mdeu = priv->reg + TALITOS12_MDEU; |
| stride = TALITOS1_CH_STRIDE; |
| } else if (of_device_is_compatible(np, "fsl,sec1.0")) { |
| priv->reg_deu = priv->reg + TALITOS10_DEU; |
| priv->reg_aesu = priv->reg + TALITOS10_AESU; |
| priv->reg_mdeu = priv->reg + TALITOS10_MDEU; |
| priv->reg_afeu = priv->reg + TALITOS10_AFEU; |
| priv->reg_rngu = priv->reg + TALITOS10_RNGU; |
| priv->reg_pkeu = priv->reg + TALITOS10_PKEU; |
| stride = TALITOS1_CH_STRIDE; |
| } else { |
| priv->reg_deu = priv->reg + TALITOS2_DEU; |
| priv->reg_aesu = priv->reg + TALITOS2_AESU; |
| priv->reg_mdeu = priv->reg + TALITOS2_MDEU; |
| priv->reg_afeu = priv->reg + TALITOS2_AFEU; |
| priv->reg_rngu = priv->reg + TALITOS2_RNGU; |
| priv->reg_pkeu = priv->reg + TALITOS2_PKEU; |
| priv->reg_keu = priv->reg + TALITOS2_KEU; |
| priv->reg_crcu = priv->reg + TALITOS2_CRCU; |
| stride = TALITOS2_CH_STRIDE; |
| } |
| |
| err = talitos_probe_irq(ofdev); |
| if (err) |
| goto err_out; |
| |
| if (of_device_is_compatible(np, "fsl,sec1.0")) { |
| tasklet_init(&priv->done_task[0], talitos1_done_4ch, |
| (unsigned long)dev); |
| } else { |
| if (!priv->irq[1]) { |
| tasklet_init(&priv->done_task[0], talitos2_done_4ch, |
| (unsigned long)dev); |
| } else { |
| tasklet_init(&priv->done_task[0], talitos2_done_ch0_2, |
| (unsigned long)dev); |
| tasklet_init(&priv->done_task[1], talitos2_done_ch1_3, |
| (unsigned long)dev); |
| } |
| } |
| |
| priv->chan = kzalloc(sizeof(struct talitos_channel) * |
| priv->num_channels, GFP_KERNEL); |
| if (!priv->chan) { |
| dev_err(dev, "failed to allocate channel management space\n"); |
| err = -ENOMEM; |
| goto err_out; |
| } |
| |
| priv->fifo_len = roundup_pow_of_two(priv->chfifo_len); |
| |
| for (i = 0; i < priv->num_channels; i++) { |
| priv->chan[i].reg = priv->reg + stride * (i + 1); |
| if (!priv->irq[1] || !(i & 1)) |
| priv->chan[i].reg += TALITOS_CH_BASE_OFFSET; |
| |
| spin_lock_init(&priv->chan[i].head_lock); |
| spin_lock_init(&priv->chan[i].tail_lock); |
| |
| priv->chan[i].fifo = kzalloc(sizeof(struct talitos_request) * |
| priv->fifo_len, GFP_KERNEL); |
| if (!priv->chan[i].fifo) { |
| dev_err(dev, "failed to allocate request fifo %d\n", i); |
| err = -ENOMEM; |
| goto err_out; |
| } |
| |
| atomic_set(&priv->chan[i].submit_count, |
| -(priv->chfifo_len - 1)); |
| } |
| |
| dma_set_mask(dev, DMA_BIT_MASK(36)); |
| |
| /* reset and initialize the h/w */ |
| err = init_device(dev); |
| if (err) { |
| dev_err(dev, "failed to initialize device\n"); |
| goto err_out; |
| } |
| |
| /* register the RNG, if available */ |
| if (hw_supports(dev, DESC_HDR_SEL0_RNG)) { |
| err = talitos_register_rng(dev); |
| if (err) { |
| dev_err(dev, "failed to register hwrng: %d\n", err); |
| goto err_out; |
| } else |
| dev_info(dev, "hwrng\n"); |
| } |
| |
| /* register crypto algorithms the device supports */ |
| for (i = 0; i < ARRAY_SIZE(driver_algs); i++) { |
| if (hw_supports(dev, driver_algs[i].desc_hdr_template)) { |
| struct talitos_crypto_alg *t_alg; |
| struct crypto_alg *alg = NULL; |
| |
| t_alg = talitos_alg_alloc(dev, &driver_algs[i]); |
| if (IS_ERR(t_alg)) { |
| err = PTR_ERR(t_alg); |
| if (err == -ENOTSUPP) |
| continue; |
| goto err_out; |
| } |
| |
| switch (t_alg->algt.type) { |
| case CRYPTO_ALG_TYPE_ABLKCIPHER: |
| err = crypto_register_alg( |
| &t_alg->algt.alg.crypto); |
| alg = &t_alg->algt.alg.crypto; |
| break; |
| |
| case CRYPTO_ALG_TYPE_AEAD: |
| err = crypto_register_aead( |
| &t_alg->algt.alg.aead); |
| alg = &t_alg->algt.alg.aead.base; |
| break; |
| |
| case CRYPTO_ALG_TYPE_AHASH: |
| err = crypto_register_ahash( |
| &t_alg->algt.alg.hash); |
| alg = &t_alg->algt.alg.hash.halg.base; |
| break; |
| } |
| if (err) { |
| dev_err(dev, "%s alg registration failed\n", |
| alg->cra_driver_name); |
| kfree(t_alg); |
| } else |
| list_add_tail(&t_alg->entry, &priv->alg_list); |
| } |
| } |
| if (!list_empty(&priv->alg_list)) |
| dev_info(dev, "%s algorithms registered in /proc/crypto\n", |
| (char *)of_get_property(np, "compatible", NULL)); |
| |
| return 0; |
| |
| err_out: |
| talitos_remove(ofdev); |
| |
| return err; |
| } |
| |
| static const struct of_device_id talitos_match[] = { |
| #ifdef CONFIG_CRYPTO_DEV_TALITOS1 |
| { |
| .compatible = "fsl,sec1.0", |
| }, |
| #endif |
| #ifdef CONFIG_CRYPTO_DEV_TALITOS2 |
| { |
| .compatible = "fsl,sec2.0", |
| }, |
| #endif |
| {}, |
| }; |
| MODULE_DEVICE_TABLE(of, talitos_match); |
| |
| static struct platform_driver talitos_driver = { |
| .driver = { |
| .name = "talitos", |
| .of_match_table = talitos_match, |
| }, |
| .probe = talitos_probe, |
| .remove = talitos_remove, |
| }; |
| |
| module_platform_driver(talitos_driver); |
| |
| MODULE_LICENSE("GPL"); |
| MODULE_AUTHOR("Kim Phillips <kim.phillips@freescale.com>"); |
| MODULE_DESCRIPTION("Freescale integrated security engine (SEC) driver"); |
