diff options
| author |   Luca Boccassi <luca.boccassi@gmail.com> | 2018-11-01 11:59:50 +0000 |
|---|---|---|
| committer | Luca Boccassi <luca.boccassi@gmail.com> | 2018-11-01 12:00:19 +0000 |
| commit | 8d01b9cd70a67cdafd5b965a70420c3bd7fb3f82 (patch) | |
| tree | 208e3bc33c220854d89d010e3abf720a2e62e546 /drivers/common/cpt/cpt_ucode.h | |
| parent | b63264c8342e6a1b6971c79550d2af2024b6a4de (diff) | |
New upstream version 18.11-rc1upstream/18.11-rc1
Change-Id: Iaa71986dd6332e878d8f4bf493101b2bbc6313bb
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>
Diffstat (limited to 'drivers/common/cpt/cpt_ucode.h')
| -rw-r--r-- | drivers/common/cpt/cpt_ucode.h | 3648 |
1 files changed, 3648 insertions, 0 deletions
diff --git a/drivers/common/cpt/cpt_ucode.h b/drivers/common/cpt/cpt_ucode.h new file mode 100644 index 00000000..c5a9f34b --- /dev/null +++ b/drivers/common/cpt/cpt_ucode.h @@ -0,0 +1,3648 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2018 Cavium, Inc + */ + +#ifndef _CPT_UCODE_H_ +#define _CPT_UCODE_H_ +#include <stdbool.h> + +#include "cpt_common.h" +#include "cpt_hw_types.h" +#include "cpt_mcode_defines.h" + +/* + * This file defines functions that are interfaces to microcode spec. + * + */ + +static uint8_t zuc_d[32] = { + 0x44, 0xD7, 0x26, 0xBC, 0x62, 0x6B, 0x13, 0x5E, + 0x57, 0x89, 0x35, 0xE2, 0x71, 0x35, 0x09, 0xAF, + 0x4D, 0x78, 0x2F, 0x13, 0x6B, 0xC4, 0x1A, 0xF1, + 0x5E, 0x26, 0x3C, 0x4D, 0x78, 0x9A, 0x47, 0xAC +}; + +static __rte_always_inline int +cpt_is_algo_supported(struct rte_crypto_sym_xform *xform) +{ + /* + * Microcode only supports the following combination. + * Encryption followed by authentication + * Authentication followed by decryption + */ + if (xform->next) { + if ((xform->type == RTE_CRYPTO_SYM_XFORM_AUTH) && + (xform->next->type == RTE_CRYPTO_SYM_XFORM_CIPHER) && + (xform->next->cipher.op == RTE_CRYPTO_CIPHER_OP_ENCRYPT)) { + /* Unsupported as of now by microcode */ + CPT_LOG_DP_ERR("Unsupported combination"); + return -1; + } + if ((xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER) && + (xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH) && + (xform->cipher.op == RTE_CRYPTO_CIPHER_OP_DECRYPT)) { + /* For GMAC auth there is no cipher operation */ + if (xform->aead.algo != RTE_CRYPTO_AEAD_AES_GCM || + xform->next->auth.algo != + RTE_CRYPTO_AUTH_AES_GMAC) { + /* Unsupported as of now by microcode */ + CPT_LOG_DP_ERR("Unsupported combination"); + return -1; + } + } + } + return 0; +} + +static __rte_always_inline void +gen_key_snow3g(uint8_t *ck, uint32_t *keyx) +{ + int i, base; + + for (i = 0; i < 4; i++) { + base = 4 * i; + keyx[3 - i] = (ck[base] << 24) | (ck[base + 1] << 16) | + (ck[base + 2] << 8) | (ck[base + 3]); + keyx[3 - i] = rte_cpu_to_be_32(keyx[3 - i]); + } +} + +static __rte_always_inline void +cpt_fc_salt_update(void *ctx, + uint8_t *salt) +{ + struct cpt_ctx *cpt_ctx = ctx; + memcpy(&cpt_ctx->fctx.enc.encr_iv, salt, 4); +} + +static __rte_always_inline int +cpt_fc_ciph_validate_key_aes(uint16_t key_len) +{ + switch (key_len) { + case CPT_BYTE_16: + case CPT_BYTE_24: + case CPT_BYTE_32: + return 0; + default: + return -1; + } +} + +static __rte_always_inline int +cpt_fc_ciph_validate_key(cipher_type_t type, struct cpt_ctx *cpt_ctx, + uint16_t key_len) +{ + int fc_type = 0; + switch (type) { + case PASSTHROUGH: + fc_type = FC_GEN; + break; + case DES3_CBC: + case DES3_ECB: + fc_type = FC_GEN; + break; + case AES_CBC: + case AES_ECB: + case AES_CFB: + case AES_CTR: + case AES_GCM: + if (unlikely(cpt_fc_ciph_validate_key_aes(key_len) != 0)) + return -1; + fc_type = FC_GEN; + break; + case AES_XTS: + key_len = key_len / 2; + if (unlikely(key_len == CPT_BYTE_24)) { + CPT_LOG_DP_ERR("Invalid AES key len for XTS"); + return -1; + } + if (unlikely(cpt_fc_ciph_validate_key_aes(key_len) != 0)) + return -1; + fc_type = FC_GEN; + break; + case ZUC_EEA3: + case SNOW3G_UEA2: + if (unlikely(key_len != 16)) + return -1; + /* No support for AEAD yet */ + if (unlikely(cpt_ctx->hash_type)) + return -1; + fc_type = ZUC_SNOW3G; + break; + case KASUMI_F8_CBC: + case KASUMI_F8_ECB: + if (unlikely(key_len != 16)) + return -1; + /* No support for AEAD yet */ + if (unlikely(cpt_ctx->hash_type)) + return -1; + fc_type = KASUMI; + break; + default: + return -1; + } + return fc_type; +} + +static __rte_always_inline void +cpt_fc_ciph_set_key_passthrough(struct cpt_ctx *cpt_ctx, mc_fc_context_t *fctx) +{ + cpt_ctx->enc_cipher = 0; + CPT_P_ENC_CTRL(fctx).enc_cipher = 0; +} + +static __rte_always_inline void +cpt_fc_ciph_set_key_set_aes_key_type(mc_fc_context_t *fctx, uint16_t key_len) +{ + mc_aes_type_t aes_key_type = 0; + switch (key_len) { + case CPT_BYTE_16: + aes_key_type = AES_128_BIT; + break; + case CPT_BYTE_24: + aes_key_type = AES_192_BIT; + break; + case CPT_BYTE_32: + aes_key_type = AES_256_BIT; + break; + default: + /* This should not happen */ + CPT_LOG_DP_ERR("Invalid AES key len"); + return; + } + CPT_P_ENC_CTRL(fctx).aes_key = aes_key_type; +} + +static __rte_always_inline void +cpt_fc_ciph_set_key_snow3g_uea2(struct cpt_ctx *cpt_ctx, uint8_t *key, + uint16_t key_len) +{ + uint32_t keyx[4]; + cpt_ctx->snow3g = 1; + gen_key_snow3g(key, keyx); + memcpy(cpt_ctx->zs_ctx.ci_key, keyx, key_len); + cpt_ctx->fc_type = ZUC_SNOW3G; + cpt_ctx->zsk_flags = 0; +} + +static __rte_always_inline void +cpt_fc_ciph_set_key_zuc_eea3(struct cpt_ctx *cpt_ctx, uint8_t *key, + uint16_t key_len) +{ + cpt_ctx->snow3g = 0; + memcpy(cpt_ctx->zs_ctx.ci_key, key, key_len); + memcpy(cpt_ctx->zs_ctx.zuc_const, zuc_d, 32); + cpt_ctx->fc_type = ZUC_SNOW3G; + cpt_ctx->zsk_flags = 0; +} + +static __rte_always_inline void +cpt_fc_ciph_set_key_kasumi_f8_ecb(struct cpt_ctx *cpt_ctx, uint8_t *key, + uint16_t key_len) +{ + cpt_ctx->k_ecb = 1; + memcpy(cpt_ctx->k_ctx.ci_key, key, key_len); + cpt_ctx->zsk_flags = 0; + cpt_ctx->fc_type = KASUMI; +} + +static __rte_always_inline void +cpt_fc_ciph_set_key_kasumi_f8_cbc(struct cpt_ctx *cpt_ctx, uint8_t *key, + uint16_t key_len) +{ + memcpy(cpt_ctx->k_ctx.ci_key, key, key_len); + cpt_ctx->zsk_flags = 0; + cpt_ctx->fc_type = KASUMI; +} + +static __rte_always_inline int +cpt_fc_ciph_set_key(void *ctx, cipher_type_t type, uint8_t *key, + uint16_t key_len, uint8_t *salt) +{ + struct cpt_ctx *cpt_ctx = ctx; + mc_fc_context_t *fctx = &cpt_ctx->fctx; + uint64_t *ctrl_flags = NULL; + int fc_type; + + /* Validate key before proceeding */ + fc_type = cpt_fc_ciph_validate_key(type, cpt_ctx, key_len); + if (unlikely(fc_type == -1)) + return -1; + + if (fc_type == FC_GEN) { + cpt_ctx->fc_type = FC_GEN; + ctrl_flags = (uint64_t *)&(fctx->enc.enc_ctrl.flags); + *ctrl_flags = rte_be_to_cpu_64(*ctrl_flags); + /* + * We need to always say IV is from DPTR as user can + * sometimes iverride IV per operation. + */ + CPT_P_ENC_CTRL(fctx).iv_source = CPT_FROM_DPTR; + } + + switch (type) { + case PASSTHROUGH: + cpt_fc_ciph_set_key_passthrough(cpt_ctx, fctx); + goto fc_success; + case DES3_CBC: + /* CPT performs DES using 3DES with the 8B DES-key + * replicated 2 more times to match the 24B 3DES-key. + * Eg. If org. key is "0x0a 0x0b", then new key is + * "0x0a 0x0b 0x0a 0x0b 0x0a 0x0b" + */ + if (key_len == 8) { + /* Skipping the first 8B as it will be copied + * in the regular code flow + */ + memcpy(fctx->enc.encr_key+key_len, key, key_len); + memcpy(fctx->enc.encr_key+2*key_len, key, key_len); + } + break; + case DES3_ECB: + /* For DES3_ECB IV need to be from CTX. */ + CPT_P_ENC_CTRL(fctx).iv_source = CPT_FROM_CTX; + break; + case AES_CBC: + case AES_ECB: + case AES_CFB: + case AES_CTR: + cpt_fc_ciph_set_key_set_aes_key_type(fctx, key_len); + break; + case AES_GCM: + /* Even though iv source is from dptr, + * aes_gcm salt is taken from ctx + */ + if (salt) { + memcpy(fctx->enc.encr_iv, salt, 4); + /* Assuming it was just salt update + * and nothing else + */ + if (!key) + goto fc_success; + } + cpt_fc_ciph_set_key_set_aes_key_type(fctx, key_len); + break; + case AES_XTS: + key_len = key_len / 2; + cpt_fc_ciph_set_key_set_aes_key_type(fctx, key_len); + + /* Copy key2 for XTS into ipad */ + memset(fctx->hmac.ipad, 0, sizeof(fctx->hmac.ipad)); + memcpy(fctx->hmac.ipad, &key[key_len], key_len); + break; + case SNOW3G_UEA2: + cpt_fc_ciph_set_key_snow3g_uea2(cpt_ctx, key, key_len); + goto success; + case ZUC_EEA3: + cpt_fc_ciph_set_key_zuc_eea3(cpt_ctx, key, key_len); + goto success; + case KASUMI_F8_ECB: + cpt_fc_ciph_set_key_kasumi_f8_ecb(cpt_ctx, key, key_len); + goto success; + case KASUMI_F8_CBC: + cpt_fc_ciph_set_key_kasumi_f8_cbc(cpt_ctx, key, key_len); + goto success; + default: + break; + } + + /* Only for FC_GEN case */ + + /* For GMAC auth, cipher must be NULL */ + if (cpt_ctx->hash_type != GMAC_TYPE) + CPT_P_ENC_CTRL(fctx).enc_cipher = type; + + memcpy(fctx->enc.encr_key, key, key_len); + +fc_success: + *ctrl_flags = rte_cpu_to_be_64(*ctrl_flags); + +success: + cpt_ctx->enc_cipher = type; + + return 0; +} + +static __rte_always_inline uint32_t +fill_sg_comp(sg_comp_t *list, + uint32_t i, + phys_addr_t dma_addr, + uint32_t size) +{ + sg_comp_t *to = &list[i>>2]; + + to->u.s.len[i%4] = rte_cpu_to_be_16(size); + to->ptr[i%4] = rte_cpu_to_be_64(dma_addr); + i++; + return i; +} + +static __rte_always_inline uint32_t +fill_sg_comp_from_buf(sg_comp_t *list, + uint32_t i, + buf_ptr_t *from) +{ + sg_comp_t *to = &list[i>>2]; + + to->u.s.len[i%4] = rte_cpu_to_be_16(from->size); + to->ptr[i%4] = rte_cpu_to_be_64(from->dma_addr); + i++; + return i; +} + +static __rte_always_inline uint32_t +fill_sg_comp_from_buf_min(sg_comp_t *list, + uint32_t i, + buf_ptr_t *from, + uint32_t *psize) +{ + sg_comp_t *to = &list[i >> 2]; + uint32_t size = *psize; + uint32_t e_len; + + e_len = (size > from->size) ? from->size : size; + to->u.s.len[i % 4] = rte_cpu_to_be_16(e_len); + to->ptr[i % 4] = rte_cpu_to_be_64(from->dma_addr); + *psize -= e_len; + i++; + return i; +} + +/* + * This fills the MC expected SGIO list + * from IOV given by user. + */ +static __rte_always_inline uint32_t +fill_sg_comp_from_iov(sg_comp_t *list, + uint32_t i, + iov_ptr_t *from, uint32_t from_offset, + uint32_t *psize, buf_ptr_t *extra_buf, + uint32_t extra_offset) +{ + int32_t j; + uint32_t extra_len = extra_buf ? extra_buf->size : 0; + uint32_t size = *psize - extra_len; + buf_ptr_t *bufs; + + bufs = from->bufs; + for (j = 0; (j < from->buf_cnt) && size; j++) { + phys_addr_t e_dma_addr; + uint32_t e_len; + sg_comp_t *to = &list[i >> 2]; + + if (!bufs[j].size) + continue; + + if (unlikely(from_offset)) { + if (from_offset >= bufs[j].size) { + from_offset -= bufs[j].size; + continue; + } + e_dma_addr = bufs[j].dma_addr + from_offset; + e_len = (size > (bufs[j].size - from_offset)) ? + (bufs[j].size - from_offset) : size; + from_offset = 0; + } else { + e_dma_addr = bufs[j].dma_addr; + e_len = (size > bufs[j].size) ? + bufs[j].size : size; + } + + to->u.s.len[i % 4] = rte_cpu_to_be_16(e_len); + to->ptr[i % 4] = rte_cpu_to_be_64(e_dma_addr); + + if (extra_len && (e_len >= extra_offset)) { + /* Break the data at given offset */ + uint32_t next_len = e_len - extra_offset; + phys_addr_t next_dma = e_dma_addr + extra_offset; + + if (!extra_offset) { + i--; + } else { + e_len = extra_offset; + size -= e_len; + to->u.s.len[i % 4] = rte_cpu_to_be_16(e_len); + } + + /* Insert extra data ptr */ + if (extra_len) { + i++; + to = &list[i >> 2]; + to->u.s.len[i % 4] = + rte_cpu_to_be_16(extra_buf->size); + to->ptr[i % 4] = + rte_cpu_to_be_64(extra_buf->dma_addr); + + /* size already decremented by extra len */ + } + + /* insert the rest of the data */ + if (next_len) { + i++; + to = &list[i >> 2]; + to->u.s.len[i % 4] = rte_cpu_to_be_16(next_len); + to->ptr[i % 4] = rte_cpu_to_be_64(next_dma); + size -= next_len; + } + extra_len = 0; + + } else { + size -= e_len; + } + if (extra_offset) + extra_offset -= size; + i++; + } + + *psize = size; + return (uint32_t)i; +} + +static __rte_always_inline int +cpt_digest_gen_prep(uint32_t flags, + uint64_t d_lens, + digest_params_t *params, + void *op, + void **prep_req) +{ + struct cpt_request_info *req; + uint32_t size, i; + int32_t m_size; + uint16_t data_len, mac_len, key_len; + auth_type_t hash_type; + buf_ptr_t *meta_p; + struct cpt_ctx *ctx; + sg_comp_t *gather_comp; + sg_comp_t *scatter_comp; + uint8_t *in_buffer; + uint32_t g_size_bytes, s_size_bytes; + uint64_t dptr_dma, rptr_dma; + vq_cmd_word0_t vq_cmd_w0; + vq_cmd_word3_t vq_cmd_w3; + void *c_vaddr, *m_vaddr; + uint64_t c_dma, m_dma; + opcode_info_t opcode; + + if (!params || !params->ctx_buf.vaddr) + return ERR_BAD_INPUT_ARG; + + ctx = params->ctx_buf.vaddr; + meta_p = ¶ms->meta_buf; + + if (!meta_p->vaddr || !meta_p->dma_addr) + return ERR_BAD_INPUT_ARG; + + if (meta_p->size < sizeof(struct cpt_request_info)) + return ERR_BAD_INPUT_ARG; + + m_vaddr = meta_p->vaddr; + m_dma = meta_p->dma_addr; + m_size = meta_p->size; + + /* + * Save initial space that followed app data for completion code & + * alternate completion code to fall in same cache line as app data + */ + m_vaddr = (uint8_t *)m_vaddr + COMPLETION_CODE_SIZE; + m_dma += COMPLETION_CODE_SIZE; + size = (uint8_t *)RTE_PTR_ALIGN((uint8_t *)m_vaddr, 16) - + (uint8_t *)m_vaddr; + c_vaddr = (uint8_t *)m_vaddr + size; + c_dma = m_dma + size; + size += sizeof(cpt_res_s_t); + + m_vaddr = (uint8_t *)m_vaddr + size; + m_dma += size; + m_size -= size; + + req = m_vaddr; + + size = sizeof(struct cpt_request_info); + m_vaddr = (uint8_t *)m_vaddr + size; + m_dma += size; + m_size -= size; + + hash_type = ctx->hash_type; + mac_len = ctx->mac_len; + key_len = ctx->auth_key_len; + data_len = AUTH_DLEN(d_lens); + + /*GP op header */ + vq_cmd_w0.u64 = 0; + vq_cmd_w0.s.param2 = rte_cpu_to_be_16(((uint16_t)hash_type << 8)); + if (ctx->hmac) { + opcode.s.major = CPT_MAJOR_OP_HMAC | CPT_DMA_MODE; + vq_cmd_w0.s.param1 = rte_cpu_to_be_16(key_len); + vq_cmd_w0.s.dlen = + rte_cpu_to_be_16((data_len + ROUNDUP8(key_len))); + } else { + opcode.s.major = CPT_MAJOR_OP_HASH | CPT_DMA_MODE; + vq_cmd_w0.s.param1 = 0; + vq_cmd_w0.s.dlen = rte_cpu_to_be_16(data_len); + } + + opcode.s.minor = 0; + + /* Null auth only case enters the if */ + if (unlikely(!hash_type && !ctx->enc_cipher)) { + opcode.s.major = CPT_MAJOR_OP_MISC; + /* Minor op is passthrough */ + opcode.s.minor = 0x03; + /* Send out completion code only */ + vq_cmd_w0.s.param2 = 0x1; + } + + vq_cmd_w0.s.opcode = rte_cpu_to_be_16(opcode.flags); + + /* DPTR has SG list */ + in_buffer = m_vaddr; + dptr_dma = m_dma; + + ((uint16_t *)in_buffer)[0] = 0; + ((uint16_t *)in_buffer)[1] = 0; + + /* TODO Add error check if space will be sufficient */ + gather_comp = (sg_comp_t *)((uint8_t *)m_vaddr + 8); + + /* + * Input gather list + */ + + i = 0; + + if (ctx->hmac) { + uint64_t k_dma = params->ctx_buf.dma_addr + + offsetof(struct cpt_ctx, auth_key); + /* Key */ + i = fill_sg_comp(gather_comp, i, k_dma, ROUNDUP8(key_len)); + } + + /* input data */ + size = data_len; + if (size) { + i = fill_sg_comp_from_iov(gather_comp, i, params->src_iov, + 0, &size, NULL, 0); + if (size) { + CPT_LOG_DP_DEBUG("Insufficient dst IOV size, short" + " by %dB", size); + return ERR_BAD_INPUT_ARG; + } + } else { + /* + * Looks like we need to support zero data + * gather ptr in case of hash & hmac + */ + i++; + } + ((uint16_t *)in_buffer)[2] = rte_cpu_to_be_16(i); + g_size_bytes = ((i + 3) / 4) * sizeof(sg_comp_t); + + /* + * Output Gather list + */ + + i = 0; + scatter_comp = (sg_comp_t *)((uint8_t *)gather_comp + g_size_bytes); + + if (flags & VALID_MAC_BUF) { + if (params->mac_buf.size < mac_len) + return ERR_BAD_INPUT_ARG; + + size = mac_len; + i = fill_sg_comp_from_buf_min(scatter_comp, i, + ¶ms->mac_buf, &size); + } else { + size = mac_len; + i = fill_sg_comp_from_iov(scatter_comp, i, + params->src_iov, data_len, + &size, NULL, 0); + if (size) { + CPT_LOG_DP_DEBUG("Insufficient dst IOV size, short by" + " %dB", size); + return ERR_BAD_INPUT_ARG; + } + } + + ((uint16_t *)in_buffer)[3] = rte_cpu_to_be_16(i); + s_size_bytes = ((i + 3) / 4) * sizeof(sg_comp_t); + + size = g_size_bytes + s_size_bytes + SG_LIST_HDR_SIZE; + + /* This is DPTR len incase of SG mode */ + vq_cmd_w0.s.dlen = rte_cpu_to_be_16(size); + + m_vaddr = (uint8_t *)m_vaddr + size; + m_dma += size; + m_size -= size; + + /* cpt alternate completion address saved earlier */ + req->alternate_caddr = (uint64_t *)((uint8_t *)c_vaddr - 8); + *req->alternate_caddr = ~((uint64_t)COMPLETION_CODE_INIT); + rptr_dma = c_dma - 8; + + req->ist.ei1 = dptr_dma; + req->ist.ei2 = rptr_dma; + /* First 16-bit swap then 64-bit swap */ + /* TODO: HACK: Reverse the vq_cmd and cpt_req bit field definitions + * to eliminate all the swapping + */ + vq_cmd_w0.u64 = rte_cpu_to_be_64(vq_cmd_w0.u64); + + /* vq command w3 */ + vq_cmd_w3.u64 = 0; + + /* 16 byte aligned cpt res address */ + req->completion_addr = (uint64_t *)((uint8_t *)c_vaddr); + *req->completion_addr = COMPLETION_CODE_INIT; + req->comp_baddr = c_dma; + + /* Fill microcode part of instruction */ + req->ist.ei0 = vq_cmd_w0.u64; + req->ist.ei3 = vq_cmd_w3.u64; + + req->op = op; + + *prep_req = req; + return 0; +} + +static __rte_always_inline int +cpt_enc_hmac_prep(uint32_t flags, + uint64_t d_offs, + uint64_t d_lens, + fc_params_t *fc_params, + void *op, + void **prep_req) +{ + uint32_t iv_offset = 0; + int32_t inputlen, outputlen, enc_dlen, auth_dlen; + struct cpt_ctx *cpt_ctx; + uint32_t cipher_type, hash_type; + uint32_t mac_len, size; + uint8_t iv_len = 16; + struct cpt_request_info *req; + buf_ptr_t *meta_p, *aad_buf = NULL; + uint32_t encr_offset, auth_offset; + uint32_t encr_data_len, auth_data_len, aad_len = 0; + uint32_t passthrough_len = 0; + void *m_vaddr, *offset_vaddr; + uint64_t m_dma, offset_dma, ctx_dma; + vq_cmd_word0_t vq_cmd_w0; + vq_cmd_word3_t vq_cmd_w3; + void *c_vaddr; + uint64_t c_dma; + int32_t m_size; + opcode_info_t opcode; + + meta_p = &fc_params->meta_buf; + m_vaddr = meta_p->vaddr; + m_dma = meta_p->dma_addr; + m_size = meta_p->size; + + encr_offset = ENCR_OFFSET(d_offs); + auth_offset = AUTH_OFFSET(d_offs); + encr_data_len = ENCR_DLEN(d_lens); + auth_data_len = AUTH_DLEN(d_lens); + if (unlikely(flags & VALID_AAD_BUF)) { + /* + * We dont support both aad + * and auth data separately + */ + auth_data_len = 0; + auth_offset = 0; + aad_len = fc_params->aad_buf.size; + aad_buf = &fc_params->aad_buf; + } + cpt_ctx = fc_params->ctx_buf.vaddr; + cipher_type = cpt_ctx->enc_cipher; + hash_type = cpt_ctx->hash_type; + mac_len = cpt_ctx->mac_len; + + /* + * Save initial space that followed app data for completion code & + * alternate completion code to fall in same cache line as app data + */ + m_vaddr = (uint8_t *)m_vaddr + COMPLETION_CODE_SIZE; + m_dma += COMPLETION_CODE_SIZE; + size = (uint8_t *)RTE_PTR_ALIGN((uint8_t *)m_vaddr, 16) - + (uint8_t *)m_vaddr; + + c_vaddr = (uint8_t *)m_vaddr + size; + c_dma = m_dma + size; + size += sizeof(cpt_res_s_t); + + m_vaddr = (uint8_t *)m_vaddr + size; + m_dma += size; + m_size -= size; + + /* start cpt request info struct at 8 byte boundary */ + size = (uint8_t *)RTE_PTR_ALIGN(m_vaddr, 8) - + (uint8_t *)m_vaddr; + + req = (struct cpt_request_info *)((uint8_t *)m_vaddr + size); + + size += sizeof(struct cpt_request_info); + m_vaddr = (uint8_t *)m_vaddr + size; + m_dma += size; + m_size -= size; + + if (hash_type == GMAC_TYPE) + encr_data_len = 0; + + if (unlikely(!(flags & VALID_IV_BUF))) { + iv_len = 0; + iv_offset = ENCR_IV_OFFSET(d_offs); + } + + if (unlikely(flags & VALID_AAD_BUF)) { + /* + * When AAD is given, data above encr_offset is pass through + * Since AAD is given as separate pointer and not as offset, + * this is a special case as we need to fragment input data + * into passthrough + encr_data and then insert AAD in between. + */ + if (hash_type != GMAC_TYPE) { + passthrough_len = encr_offset; + auth_offset = passthrough_len + iv_len; + encr_offset = passthrough_len + aad_len + iv_len; + auth_data_len = aad_len + encr_data_len; + } else { + passthrough_len = 16 + aad_len; + auth_offset = passthrough_len + iv_len; + auth_data_len = aad_len; + } + } else { + encr_offset += iv_len; + auth_offset += iv_len; + } + + /* Encryption */ + opcode.s.major = CPT_MAJOR_OP_FC; + opcode.s.minor = 0; + + auth_dlen = auth_offset + auth_data_len; + enc_dlen = encr_data_len + encr_offset; + if (unlikely(encr_data_len & 0xf)) { + if ((cipher_type == DES3_CBC) || (cipher_type == DES3_ECB)) + enc_dlen = ROUNDUP8(encr_data_len) + encr_offset; + else if (likely((cipher_type == AES_CBC) || + (cipher_type == AES_ECB))) + enc_dlen = ROUNDUP16(encr_data_len) + encr_offset; + } + + if (unlikely(hash_type == GMAC_TYPE)) { + encr_offset = auth_dlen; + enc_dlen = 0; + } + + if (unlikely(auth_dlen > enc_dlen)) { + inputlen = auth_dlen; + outputlen = auth_dlen + mac_len; + } else { + inputlen = enc_dlen; + outputlen = enc_dlen + mac_len; + } + + /* GP op header */ + vq_cmd_w0.u64 = 0; + vq_cmd_w0.s.param1 = rte_cpu_to_be_16(encr_data_len); + vq_cmd_w0.s.param2 = rte_cpu_to_be_16(auth_data_len); + /* + * In 83XX since we have a limitation of + * IV & Offset control word not part of instruction + * and need to be part of Data Buffer, we check if + * head room is there and then only do the Direct mode processing + */ + if (likely((flags & SINGLE_BUF_INPLACE) && + (flags & SINGLE_BUF_HEADTAILROOM))) { + void *dm_vaddr = fc_params->bufs[0].vaddr; + uint64_t dm_dma_addr = fc_params->bufs[0].dma_addr; + /* + * This flag indicates that there is 24 bytes head room and + * 8 bytes tail room available, so that we get to do + * DIRECT MODE with limitation + */ + + offset_vaddr = (uint8_t *)dm_vaddr - OFF_CTRL_LEN - iv_len; + offset_dma = dm_dma_addr - OFF_CTRL_LEN - iv_len; + + /* DPTR */ + req->ist.ei1 = offset_dma; + /* RPTR should just exclude offset control word */ + req->ist.ei2 = dm_dma_addr - iv_len; + req->alternate_caddr = (uint64_t *)((uint8_t *)dm_vaddr + + outputlen - iv_len); + + vq_cmd_w0.s.dlen = rte_cpu_to_be_16(inputlen + OFF_CTRL_LEN); + + vq_cmd_w0.s.opcode = rte_cpu_to_be_16(opcode.flags); + + if (likely(iv_len)) { + uint64_t *dest = (uint64_t *)((uint8_t *)offset_vaddr + + OFF_CTRL_LEN); + uint64_t *src = fc_params->iv_buf; + dest[0] = src[0]; + dest[1] = src[1]; + } + + *(uint64_t *)offset_vaddr = + rte_cpu_to_be_64(((uint64_t)encr_offset << 16) | + ((uint64_t)iv_offset << 8) | + ((uint64_t)auth_offset)); + + } else { + uint32_t i, g_size_bytes, s_size_bytes; + uint64_t dptr_dma, rptr_dma; + sg_comp_t *gather_comp; + sg_comp_t *scatter_comp; + uint8_t *in_buffer; + + /* This falls under strict SG mode */ + offset_vaddr = m_vaddr; + offset_dma = m_dma; + size = OFF_CTRL_LEN + iv_len; + + m_vaddr = (uint8_t *)m_vaddr + size; + m_dma += size; + m_size -= size; + + opcode.s.major |= CPT_DMA_MODE; + + vq_cmd_w0.s.opcode = rte_cpu_to_be_16(opcode.flags); + + if (likely(iv_len)) { + uint64_t *dest = (uint64_t *)((uint8_t *)offset_vaddr + + OFF_CTRL_LEN); + uint64_t *src = fc_params->iv_buf; + dest[0] = src[0]; + dest[1] = src[1]; + } + + *(uint64_t *)offset_vaddr = + rte_cpu_to_be_64(((uint64_t)encr_offset << 16) | + ((uint64_t)iv_offset << 8) | + ((uint64_t)auth_offset)); + + /* DPTR has SG list */ + in_buffer = m_vaddr; + dptr_dma = m_dma; + + ((uint16_t *)in_buffer)[0] = 0; + ((uint16_t *)in_buffer)[1] = 0; + + /* TODO Add error check if space will be sufficient */ + gather_comp = (sg_comp_t *)((uint8_t *)m_vaddr + 8); + + /* + * Input Gather List + */ + + i = 0; + + /* Offset control word that includes iv */ + i = fill_sg_comp(gather_comp, i, offset_dma, + OFF_CTRL_LEN + iv_len); + + /* Add input data */ + size = inputlen - iv_len; + if (likely(size)) { + uint32_t aad_offset = aad_len ? passthrough_len : 0; + + if (unlikely(flags & SINGLE_BUF_INPLACE)) { + i = fill_sg_comp_from_buf_min(gather_comp, i, + fc_params->bufs, + &size); + } else { + i = fill_sg_comp_from_iov(gather_comp, i, + fc_params->src_iov, + 0, &size, + aad_buf, aad_offset); + } + + if (unlikely(size)) { + CPT_LOG_DP_ERR("Insufficient buffer space," + " size %d needed", size); + return ERR_BAD_INPUT_ARG; + } + } + ((uint16_t *)in_buffer)[2] = rte_cpu_to_be_16(i); + g_size_bytes = ((i + 3) / 4) * sizeof(sg_comp_t); + + /* + * Output Scatter list + */ + i = 0; + scatter_comp = + (sg_comp_t *)((uint8_t *)gather_comp + g_size_bytes); + + /* Add IV */ + if (likely(iv_len)) { + i = fill_sg_comp(scatter_comp, i, + offset_dma + OFF_CTRL_LEN, + iv_len); + } + + /* output data or output data + digest*/ + if (unlikely(flags & VALID_MAC_BUF)) { + size = outputlen - iv_len - mac_len; + if (size) { + uint32_t aad_offset = + aad_len ? passthrough_len : 0; + + if (unlikely(flags & SINGLE_BUF_INPLACE)) { + i = fill_sg_comp_from_buf_min( + scatter_comp, + i, + fc_params->bufs, + &size); + } else { + i = fill_sg_comp_from_iov(scatter_comp, + i, + fc_params->dst_iov, + 0, + &size, + aad_buf, + aad_offset); + } + if (size) + return ERR_BAD_INPUT_ARG; + } + /* mac_data */ + if (mac_len) { + i = fill_sg_comp_from_buf(scatter_comp, i, + &fc_params->mac_buf); + } + } else { + /* Output including mac */ + size = outputlen - iv_len; + if (likely(size)) { + uint32_t aad_offset = + aad_len ? passthrough_len : 0; + + if (unlikely(flags & SINGLE_BUF_INPLACE)) { + i = fill_sg_comp_from_buf_min( + scatter_comp, + i, + fc_params->bufs, + &size); + } else { + i = fill_sg_comp_from_iov(scatter_comp, + i, + fc_params->dst_iov, + 0, + &size, + aad_buf, + aad_offset); + } + if (unlikely(size)) { + CPT_LOG_DP_ERR("Insufficient buffer" + " space, size %d needed", + size); + return ERR_BAD_INPUT_ARG; + } + } + } + ((uint16_t *)in_buffer)[3] = rte_cpu_to_be_16(i); + s_size_bytes = ((i + 3) / 4) * sizeof(sg_comp_t); + + size = g_size_bytes + s_size_bytes + SG_LIST_HDR_SIZE; + + /* This is DPTR len incase of SG mode */ + vq_cmd_w0.s.dlen = rte_cpu_to_be_16(size); + + m_vaddr = (uint8_t *)m_vaddr + size; + m_dma += size; + m_size -= size; + + /* cpt alternate completion address saved earlier */ + req->alternate_caddr = (uint64_t *)((uint8_t *)c_vaddr - 8); + *req->alternate_caddr = ~((uint64_t)COMPLETION_CODE_INIT); + rptr_dma = c_dma - 8; + + req->ist.ei1 = dptr_dma; + req->ist.ei2 = rptr_dma; + } + + /* First 16-bit swap then 64-bit swap */ + /* TODO: HACK: Reverse the vq_cmd and cpt_req bit field definitions + * to eliminate all the swapping + */ + vq_cmd_w0.u64 = rte_cpu_to_be_64(vq_cmd_w0.u64); + + ctx_dma = fc_params->ctx_buf.dma_addr + + offsetof(struct cpt_ctx, fctx); + /* vq command w3 */ + vq_cmd_w3.u64 = 0; + vq_cmd_w3.s.grp = 0; + vq_cmd_w3.s.cptr = ctx_dma; + + /* 16 byte aligned cpt res address */ + req->completion_addr = (uint64_t *)((uint8_t *)c_vaddr); + *req->completion_addr = COMPLETION_CODE_INIT; + req->comp_baddr = c_dma; + + /* Fill microcode part of instruction */ + req->ist.ei0 = vq_cmd_w0.u64; + req->ist.ei3 = vq_cmd_w3.u64; + + req->op = op; + + *prep_req = req; + return 0; +} + +static __rte_always_inline int +cpt_dec_hmac_prep(uint32_t flags, + uint64_t d_offs, + uint64_t d_lens, + fc_params_t *fc_params, + void *op, + void **prep_req) +{ + uint32_t iv_offset = 0, size; + int32_t inputlen, outputlen, enc_dlen, auth_dlen; + struct cpt_ctx *cpt_ctx; + int32_t hash_type, mac_len, m_size; + uint8_t iv_len = 16; + struct cpt_request_info *req; + buf_ptr_t *meta_p, *aad_buf = NULL; + uint32_t encr_offset, auth_offset; + uint32_t encr_data_len, auth_data_len, aad_len = 0; + uint32_t passthrough_len = 0; + void *m_vaddr, *offset_vaddr; + uint64_t m_dma, offset_dma, ctx_dma; + opcode_info_t opcode; + vq_cmd_word0_t vq_cmd_w0; + vq_cmd_word3_t vq_cmd_w3; + void *c_vaddr; + uint64_t c_dma; + + meta_p = &fc_params->meta_buf; + m_vaddr = meta_p->vaddr; + m_dma = meta_p->dma_addr; + m_size = meta_p->size; + + encr_offset = ENCR_OFFSET(d_offs); + auth_offset = AUTH_OFFSET(d_offs); + encr_data_len = ENCR_DLEN(d_lens); + auth_data_len = AUTH_DLEN(d_lens); + + if (unlikely(flags & VALID_AAD_BUF)) { + /* + * We dont support both aad + * and auth data separately + */ + auth_data_len = 0; + auth_offset = 0; + aad_len = fc_params->aad_buf.size; + aad_buf = &fc_params->aad_buf; + } + + cpt_ctx = fc_params->ctx_buf.vaddr; + hash_type = cpt_ctx->hash_type; + mac_len = cpt_ctx->mac_len; + + if (hash_type == GMAC_TYPE) + encr_data_len = 0; + + if (unlikely(!(flags & VALID_IV_BUF))) { + iv_len = 0; + iv_offset = ENCR_IV_OFFSET(d_offs); + } + + if (unlikely(flags & VALID_AAD_BUF)) { + /* + * When AAD is given, data above encr_offset is pass through + * Since AAD is given as separate pointer and not as offset, + * this is a special case as we need to fragment input data + * into passthrough + encr_data and then insert AAD in between. + */ + if (hash_type != GMAC_TYPE) { + passthrough_len = encr_offset; + auth_offset = passthrough_len + iv_len; + encr_offset = passthrough_len + aad_len + iv_len; + auth_data_len = aad_len + encr_data_len; + } else { + passthrough_len = 16 + aad_len; + auth_offset = passthrough_len + iv_len; + auth_data_len = aad_len; + } + } else { + encr_offset += iv_len; + auth_offset += iv_len; + } + + /* + * Save initial space that followed app data for completion code & + * alternate completion code to fall in same cache line as app data + */ + m_vaddr = (uint8_t *)m_vaddr + COMPLETION_CODE_SIZE; + m_dma += COMPLETION_CODE_SIZE; + size = (uint8_t *)RTE_PTR_ALIGN((uint8_t *)m_vaddr, 16) - + (uint8_t *)m_vaddr; + c_vaddr = (uint8_t *)m_vaddr + size; + c_dma = m_dma + size; + size += sizeof(cpt_res_s_t); + + m_vaddr = (uint8_t *)m_vaddr + size; + m_dma += size; + m_size -= size; + + /* start cpt request info structure at 8 byte alignment */ + size = (uint8_t *)RTE_PTR_ALIGN(m_vaddr, 8) - + (uint8_t *)m_vaddr; + + req = (struct cpt_request_info *)((uint8_t *)m_vaddr + size); + + size += sizeof(struct cpt_request_info); + m_vaddr = (uint8_t *)m_vaddr + size; + m_dma += size; + m_size -= size; + + /* Decryption */ + opcode.s.major = CPT_MAJOR_OP_FC; + opcode.s.minor = 1; + + enc_dlen = encr_offset + encr_data_len; + auth_dlen = auth_offset + auth_data_len; + + if (auth_dlen > enc_dlen) { + inputlen = auth_dlen + mac_len; + outputlen = auth_dlen; + } else { + inputlen = enc_dlen + mac_len; + outputlen = enc_dlen; + } + + if (hash_type == GMAC_TYPE) + encr_offset = inputlen; + + vq_cmd_w0.u64 = 0; + vq_cmd_w0.s.param1 = rte_cpu_to_be_16(encr_data_len); + vq_cmd_w0.s.param2 = rte_cpu_to_be_16(auth_data_len); + + /* + * In 83XX since we have a limitation of + * IV & Offset control word not part of instruction + * and need to be part of Data Buffer, we check if + * head room is there and then only do the Direct mode processing + */ + if (likely((flags & SINGLE_BUF_INPLACE) && + (flags & SINGLE_BUF_HEADTAILROOM))) { + void *dm_vaddr = fc_params->bufs[0].vaddr; + uint64_t dm_dma_addr = fc_params->bufs[0].dma_addr; + /* + * This flag indicates that there is 24 bytes head room and + * 8 bytes tail room available, so that we get to do + * DIRECT MODE with limitation + */ + + offset_vaddr = (uint8_t *)dm_vaddr - OFF_CTRL_LEN - iv_len; + offset_dma = dm_dma_addr - OFF_CTRL_LEN - iv_len; + req->ist.ei1 = offset_dma; + + /* RPTR should just exclude offset control word */ + req->ist.ei2 = dm_dma_addr - iv_len; + + req->alternate_caddr = (uint64_t *)((uint8_t *)dm_vaddr + + outputlen - iv_len); + /* since this is decryption, + * don't touch the content of + * alternate ccode space as it contains + * hmac. + */ + + vq_cmd_w0.s.dlen = rte_cpu_to_be_16(inputlen + OFF_CTRL_LEN); + + vq_cmd_w0.s.opcode = rte_cpu_to_be_16(opcode.flags); + + if (likely(iv_len)) { + uint64_t *dest = (uint64_t *)((uint8_t *)offset_vaddr + + OFF_CTRL_LEN); + uint64_t *src = fc_params->iv_buf; + dest[0] = src[0]; + dest[1] = src[1]; + } + + *(uint64_t *)offset_vaddr = + rte_cpu_to_be_64(((uint64_t)encr_offset << 16) | + ((uint64_t)iv_offset << 8) | + ((uint64_t)auth_offset)); + + } else { + uint64_t dptr_dma, rptr_dma; + uint32_t g_size_bytes, s_size_bytes; + sg_comp_t *gather_comp; + sg_comp_t *scatter_comp; + uint8_t *in_buffer; + uint8_t i = 0; + + /* This falls under strict SG mode */ + offset_vaddr = m_vaddr; + offset_dma = m_dma; + size = OFF_CTRL_LEN + iv_len; + + m_vaddr = (uint8_t *)m_vaddr + size; + m_dma += size; + m_size -= size; + + opcode.s.major |= CPT_DMA_MODE; + + vq_cmd_w0.s.opcode = rte_cpu_to_be_16(opcode.flags); + + if (likely(iv_len)) { + uint64_t *dest = (uint64_t *)((uint8_t *)offset_vaddr + + OFF_CTRL_LEN); + uint64_t *src = fc_params->iv_buf; + dest[0] = src[0]; + dest[1] = src[1]; + } + + *(uint64_t *)offset_vaddr = + rte_cpu_to_be_64(((uint64_t)encr_offset << 16) | + ((uint64_t)iv_offset << 8) | + ((uint64_t)auth_offset)); + + /* DPTR has SG list */ + in_buffer = m_vaddr; + dptr_dma = m_dma; + + ((uint16_t *)in_buffer)[0] = 0; + ((uint16_t *)in_buffer)[1] = 0; + + /* TODO Add error check if space will be sufficient */ + gather_comp = (sg_comp_t *)((uint8_t *)m_vaddr + 8); + + /* + * Input Gather List + */ + i = 0; + + /* Offset control word that includes iv */ + i = fill_sg_comp(gather_comp, i, offset_dma, + OFF_CTRL_LEN + iv_len); + + /* Add input data */ + if (flags & VALID_MAC_BUF) { + size = inputlen - iv_len - mac_len; + if (size) { + /* input data only */ + if (unlikely(flags & SINGLE_BUF_INPLACE)) { + i = fill_sg_comp_from_buf_min( + gather_comp, i, + fc_params->bufs, + &size); + } else { + uint32_t aad_offset = aad_len ? + passthrough_len : 0; + + i = fill_sg_comp_from_iov(gather_comp, + i, + fc_params->src_iov, + 0, &size, + aad_buf, + aad_offset); + } + if (size) + return ERR_BAD_INPUT_ARG; + } + + /* mac data */ + if (mac_len) { + i = fill_sg_comp_from_buf(gather_comp, i, + &fc_params->mac_buf); + } + } else { + /* input data + mac */ + size = inputlen - iv_len; + if (size) { + if (unlikely(flags & SINGLE_BUF_INPLACE)) { + i = fill_sg_comp_from_buf_min( + gather_comp, i, + fc_params->bufs, + &size); + } else { + uint32_t aad_offset = aad_len ? + passthrough_len : 0; + + if (!fc_params->src_iov) + return ERR_BAD_INPUT_ARG; + + i = fill_sg_comp_from_iov( + gather_comp, i, + fc_params->src_iov, + 0, &size, + aad_buf, + aad_offset); + } + + if (size) + return ERR_BAD_INPUT_ARG; + } + } + ((uint16_t *)in_buffer)[2] = rte_cpu_to_be_16(i); + g_size_bytes = ((i + 3) / 4) * sizeof(sg_comp_t); + + /* + * Output Scatter List + */ + + i = 0; + scatter_comp = + (sg_comp_t *)((uint8_t *)gather_comp + g_size_bytes); + + /* Add iv */ + if (iv_len) { + i = fill_sg_comp(scatter_comp, i, + offset_dma + OFF_CTRL_LEN, + iv_len); + } + + /* Add output data */ + size = outputlen - iv_len; + if (size) { + if (unlikely(flags & SINGLE_BUF_INPLACE)) { + /* handle single buffer here */ + i = fill_sg_comp_from_buf_min(scatter_comp, i, + fc_params->bufs, + &size); + } else { + uint32_t aad_offset = aad_len ? + passthrough_len : 0; + + if (!fc_params->dst_iov) + return ERR_BAD_INPUT_ARG; + + i = fill_sg_comp_from_iov(scatter_comp, i, + fc_params->dst_iov, 0, + &size, aad_buf, + aad_offset); + } + + if (unlikely(size)) + return ERR_BAD_INPUT_ARG; + } + + ((uint16_t *)in_buffer)[3] = rte_cpu_to_be_16(i); + s_size_bytes = ((i + 3) / 4) * sizeof(sg_comp_t); + + size = g_size_bytes + s_size_bytes + SG_LIST_HDR_SIZE; + + /* This is DPTR len incase of SG mode */ + vq_cmd_w0.s.dlen = rte_cpu_to_be_16(size); + + m_vaddr = (uint8_t *)m_vaddr + size; + m_dma += size; + m_size -= size; + + /* cpt alternate completion address saved earlier */ + req->alternate_caddr = (uint64_t *)((uint8_t *)c_vaddr - 8); + *req->alternate_caddr = ~((uint64_t)COMPLETION_CODE_INIT); + rptr_dma = c_dma - 8; + size += COMPLETION_CODE_SIZE; + + req->ist.ei1 = dptr_dma; + req->ist.ei2 = rptr_dma; + } + + /* First 16-bit swap then 64-bit swap */ + /* TODO: HACK: Reverse the vq_cmd and cpt_req bit field definitions + * to eliminate all the swapping + */ + vq_cmd_w0.u64 = rte_cpu_to_be_64(vq_cmd_w0.u64); + + ctx_dma = fc_params->ctx_buf.dma_addr + + offsetof(struct cpt_ctx, fctx); + /* vq command w3 */ + vq_cmd_w3.u64 = 0; + vq_cmd_w3.s.grp = 0; + vq_cmd_w3.s.cptr = ctx_dma; + + /* 16 byte aligned cpt res address */ + req->completion_addr = (uint64_t *)((uint8_t *)c_vaddr); + *req->completion_addr = COMPLETION_CODE_INIT; + req->comp_baddr = c_dma; + + /* Fill microcode part of instruction */ + req->ist.ei0 = vq_cmd_w0.u64; + req->ist.ei3 = vq_cmd_w3.u64; + + req->op = op; + + *prep_req = req; + return 0; +} + +static __rte_always_inline int +cpt_zuc_snow3g_enc_prep(uint32_t req_flags, + uint64_t d_offs, + uint64_t d_lens, + fc_params_t *params, + void *op, + void **prep_req) +{ + uint32_t size; + int32_t inputlen, outputlen; + struct cpt_ctx *cpt_ctx; + uint32_t mac_len = 0; + uint8_t snow3g, j; + struct cpt_request_info *req; + buf_ptr_t *buf_p; + uint32_t encr_offset = 0, auth_offset = 0; + uint32_t encr_data_len = 0, auth_data_len = 0; + int flags, iv_len = 16, m_size; + void *m_vaddr, *c_vaddr; + uint64_t m_dma, c_dma, offset_ctrl; + uint64_t *offset_vaddr, offset_dma; + uint32_t *iv_s, iv[4]; + vq_cmd_word0_t vq_cmd_w0; + vq_cmd_word3_t vq_cmd_w3; + opcode_info_t opcode; + + buf_p = ¶ms->meta_buf; + m_vaddr = buf_p->vaddr; + m_dma = buf_p->dma_addr; + m_size = buf_p->size; + + cpt_ctx = params->ctx_buf.vaddr; + flags = cpt_ctx->zsk_flags; + mac_len = cpt_ctx->mac_len; + snow3g = cpt_ctx->snow3g; + + /* + * Save initial space that followed app data for completion code & + * alternate completion code to fall in same cache line as app data + */ + m_vaddr = (uint8_t *)m_vaddr + COMPLETION_CODE_SIZE; + m_dma += COMPLETION_CODE_SIZE; + size = (uint8_t *)RTE_PTR_ALIGN((uint8_t *)m_vaddr, 16) - + (uint8_t *)m_vaddr; + + c_vaddr = (uint8_t *)m_vaddr + size; + c_dma = m_dma + size; + size += sizeof(cpt_res_s_t); + + m_vaddr = (uint8_t *)m_vaddr + size; + m_dma += size; + m_size -= size; + + /* Reserve memory for cpt request info */ + req = m_vaddr; + + size = sizeof(struct cpt_request_info); + m_vaddr = (uint8_t *)m_vaddr + size; + m_dma += size; + m_size -= size; + + opcode.s.major = CPT_MAJOR_OP_ZUC_SNOW3G; + + /* indicates CPTR ctx, operation type, KEY & IV mode from DPTR */ + opcode.s.minor = ((1 << 6) | (snow3g << 5) | (0 << 4) | + (0 << 3) | (flags & 0x7)); + + if (flags == 0x1) { + /* + * Microcode expects offsets in bytes + * TODO: Rounding off + */ + auth_data_len = AUTH_DLEN(d_lens); + + /* EIA3 or UIA2 */ + auth_offset = AUTH_OFFSET(d_offs); + auth_offset = auth_offset / 8; + + /* consider iv len */ + auth_offset += iv_len; + + inputlen = auth_offset + (RTE_ALIGN(auth_data_len, 8) / 8); + outputlen = mac_len; + + offset_ctrl = rte_cpu_to_be_64((uint64_t)auth_offset); + + } else { + /* EEA3 or UEA2 */ + /* + * Microcode expects offsets in bytes + * TODO: Rounding off + */ + encr_data_len = ENCR_DLEN(d_lens); + + encr_offset = ENCR_OFFSET(d_offs); + encr_offset = encr_offset / 8; + /* consider iv len */ + encr_offset += iv_len; + + inputlen = encr_offset + (RTE_ALIGN(encr_data_len, 8) / 8); + outputlen = inputlen; + + /* iv offset is 0 */ + offset_ctrl = rte_cpu_to_be_64((uint64_t)encr_offset << 16); + } + + /* IV */ + iv_s = (flags == 0x1) ? params->auth_iv_buf : + params->iv_buf; + + if (snow3g) { + /* + * DPDK seems to provide it in form of IV3 IV2 IV1 IV0 + * and BigEndian, MC needs it as IV0 IV1 IV2 IV3 + */ + + for (j = 0; j < 4; j++) + iv[j] = iv_s[3 - j]; + } else { + /* ZUC doesn't need a swap */ + for (j = 0; j < 4; j++) + iv[j] = iv_s[j]; + } + + /* + * GP op header, lengths are expected in bits. + */ + vq_cmd_w0.u64 = 0; + vq_cmd_w0.s.param1 = rte_cpu_to_be_16(encr_data_len); + vq_cmd_w0.s.param2 = rte_cpu_to_be_16(auth_data_len); + + /* + * In 83XX since we have a limitation of + * IV & Offset control word not part of instruction + * and need to be part of Data Buffer, we check if + * head room is there and then only do the Direct mode processing + */ + if (likely((req_flags & SINGLE_BUF_INPLACE) && + (req_flags & SINGLE_BUF_HEADTAILROOM))) { + void *dm_vaddr = params->bufs[0].vaddr; + uint64_t dm_dma_addr = params->bufs[0].dma_addr; + /* + * This flag indicates that there is 24 bytes head room and + * 8 bytes tail room available, so that we get to do + * DIRECT MODE with limitation + */ + + offset_vaddr = (uint64_t *)((uint8_t *)dm_vaddr - + OFF_CTRL_LEN - iv_len); + offset_dma = dm_dma_addr - OFF_CTRL_LEN - iv_len; + + /* DPTR */ + req->ist.ei1 = offset_dma; + /* RPTR should just exclude offset control word */ + req->ist.ei2 = dm_dma_addr - iv_len; + req->alternate_caddr = (uint64_t *)((uint8_t *)dm_vaddr + + outputlen - iv_len); + + vq_cmd_w0.s.dlen = rte_cpu_to_be_16(inputlen + OFF_CTRL_LEN); + + vq_cmd_w0.s.opcode = rte_cpu_to_be_16(opcode.flags); + + if (likely(iv_len)) { + uint32_t *iv_d = (uint32_t *)((uint8_t *)offset_vaddr + + OFF_CTRL_LEN); + memcpy(iv_d, iv, 16); + } + + *offset_vaddr = offset_ctrl; + } else { + uint32_t i, g_size_bytes, s_size_bytes; + uint64_t dptr_dma, rptr_dma; + sg_comp_t *gather_comp; + sg_comp_t *scatter_comp; + uint8_t *in_buffer; + uint32_t *iv_d; + + /* save space for iv */ + offset_vaddr = m_vaddr; + offset_dma = m_dma; + + m_vaddr = (uint8_t *)m_vaddr + OFF_CTRL_LEN + iv_len; + m_dma += OFF_CTRL_LEN + iv_len; + m_size -= OFF_CTRL_LEN + iv_len; + + opcode.s.major |= CPT_DMA_MODE; + + vq_cmd_w0.s.opcode = rte_cpu_to_be_16(opcode.flags); + + /* DPTR has SG list */ + in_buffer = m_vaddr; + dptr_dma = m_dma; + + ((uint16_t *)in_buffer)[0] = 0; + ((uint16_t *)in_buffer)[1] = 0; + + /* TODO Add error check if space will be sufficient */ + gather_comp = (sg_comp_t *)((uint8_t *)m_vaddr + 8); + + /* + * Input Gather List + */ + i = 0; + + /* Offset control word followed by iv */ + + i = fill_sg_comp(gather_comp, i, offset_dma, + OFF_CTRL_LEN + iv_len); + + /* iv offset is 0 */ + *offset_vaddr = offset_ctrl; + + iv_d = (uint32_t *)((uint8_t *)offset_vaddr + OFF_CTRL_LEN); + memcpy(iv_d, iv, 16); + + /* input data */ + size = inputlen - iv_len; + if (size) { + i = fill_sg_comp_from_iov(gather_comp, i, + params->src_iov, + 0, &size, NULL, 0); + if (size) + return ERR_BAD_INPUT_ARG; + } + ((uint16_t *)in_buffer)[2] = rte_cpu_to_be_16(i); + g_size_bytes = ((i + 3) / 4) * sizeof(sg_comp_t); + + /* + * Output Scatter List + */ + + i = 0; + scatter_comp = + (sg_comp_t *)((uint8_t *)gather_comp + g_size_bytes); + + if (flags == 0x1) { + /* IV in SLIST only for EEA3 & UEA2 */ + iv_len = 0; + } + + if (iv_len) { + i = fill_sg_comp(scatter_comp, i, + offset_dma + OFF_CTRL_LEN, iv_len); + } + + /* Add output data */ + if (req_flags & VALID_MAC_BUF) { + size = outputlen - iv_len - mac_len; + if (size) { + i = fill_sg_comp_from_iov(scatter_comp, i, + params->dst_iov, 0, + &size, NULL, 0); + + if (size) + return ERR_BAD_INPUT_ARG; + } + + /* mac data */ + if (mac_len) { + i = fill_sg_comp_from_buf(scatter_comp, i, + ¶ms->mac_buf); + } + } else { + /* Output including mac */ + size = outputlen - iv_len; + if (size) { + i = fill_sg_comp_from_iov(scatter_comp, i, + params->dst_iov, 0, + &size, NULL, 0); + + if (size) + return ERR_BAD_INPUT_ARG; + } + } + ((uint16_t *)in_buffer)[3] = rte_cpu_to_be_16(i); + s_size_bytes = ((i + 3) / 4) * sizeof(sg_comp_t); + + size = g_size_bytes + s_size_bytes + SG_LIST_HDR_SIZE; + + /* This is DPTR len incase of SG mode */ + vq_cmd_w0.s.dlen = rte_cpu_to_be_16(size); + + m_vaddr = (uint8_t *)m_vaddr + size; + m_dma += size; + m_size -= size; + + /* cpt alternate completion address saved earlier */ + req->alternate_caddr = (uint64_t *)((uint8_t *)c_vaddr - 8); + *req->alternate_caddr = ~((uint64_t)COMPLETION_CODE_INIT); + rptr_dma = c_dma - 8; + + req->ist.ei1 = dptr_dma; + req->ist.ei2 = rptr_dma; + } + + /* First 16-bit swap then 64-bit swap */ + /* TODO: HACK: Reverse the vq_cmd and cpt_req bit field definitions + * to eliminate all the swapping + */ + vq_cmd_w0.u64 = rte_cpu_to_be_64(vq_cmd_w0.u64); + + /* vq command w3 */ + vq_cmd_w3.u64 = 0; + vq_cmd_w3.s.grp = 0; + vq_cmd_w3.s.cptr = params->ctx_buf.dma_addr + + offsetof(struct cpt_ctx, zs_ctx); + + /* 16 byte aligned cpt res address */ + req->completion_addr = (uint64_t *)((uint8_t *)c_vaddr); + *req->completion_addr = COMPLETION_CODE_INIT; + req->comp_baddr = c_dma; + + /* Fill microcode part of instruction */ + req->ist.ei0 = vq_cmd_w0.u64; + req->ist.ei3 = vq_cmd_w3.u64; + + req->op = op; + + *prep_req = req; + return 0; +} + +static __rte_always_inline int +cpt_zuc_snow3g_dec_prep(uint32_t req_flags, + uint64_t d_offs, + uint64_t d_lens, + fc_params_t *params, + void *op, + void **prep_req) +{ + uint32_t size; + int32_t inputlen = 0, outputlen; + struct cpt_ctx *cpt_ctx; + uint8_t snow3g, iv_len = 16; + struct cpt_request_info *req; + buf_ptr_t *buf_p; + uint32_t encr_offset; + uint32_t encr_data_len; + int flags, m_size; + void *m_vaddr, *c_vaddr; + uint64_t m_dma, c_dma; + uint64_t *offset_vaddr, offset_dma; + uint32_t *iv_s, iv[4], j; + vq_cmd_word0_t vq_cmd_w0; + vq_cmd_word3_t vq_cmd_w3; + opcode_info_t opcode; + + buf_p = ¶ms->meta_buf; + m_vaddr = buf_p->vaddr; + m_dma = buf_p->dma_addr; + m_size = buf_p->size; + + /* + * Microcode expects offsets in bytes + * TODO: Rounding off + */ + encr_offset = ENCR_OFFSET(d_offs) / 8; + encr_data_len = ENCR_DLEN(d_lens); + + cpt_ctx = params->ctx_buf.vaddr; + flags = cpt_ctx->zsk_flags; + snow3g = cpt_ctx->snow3g; + /* + * Save initial space that followed app data for completion code & + * alternate completion code to fall in same cache line as app data + */ + m_vaddr = (uint8_t *)m_vaddr + COMPLETION_CODE_SIZE; + m_dma += COMPLETION_CODE_SIZE; + size = (uint8_t *)RTE_PTR_ALIGN((uint8_t *)m_vaddr, 16) - + (uint8_t *)m_vaddr; + + c_vaddr = (uint8_t *)m_vaddr + size; + c_dma = m_dma + size; + size += sizeof(cpt_res_s_t); + + m_vaddr = (uint8_t *)m_vaddr + size; + m_dma += size; + m_size -= size; + + /* Reserve memory for cpt request info */ + req = m_vaddr; + + size = sizeof(struct cpt_request_info); + m_vaddr = (uint8_t *)m_vaddr + size; + m_dma += size; + m_size -= size; + + opcode.s.major = CPT_MAJOR_OP_ZUC_SNOW3G; + + /* indicates CPTR ctx, operation type, KEY & IV mode from DPTR */ + opcode.s.minor = ((1 << 6) | (snow3g << 5) | (0 << 4) | + (0 << 3) | (flags & 0x7)); + + /* consider iv len */ + encr_offset += iv_len; + + inputlen = encr_offset + + (RTE_ALIGN(encr_data_len, 8) / 8); + outputlen = inputlen; + + /* IV */ + iv_s = params->iv_buf; + if (snow3g) { + /* + * DPDK seems to provide it in form of IV3 IV2 IV1 IV0 + * and BigEndian, MC needs it as IV0 IV1 IV2 IV3 + */ + + for (j = 0; j < 4; j++) + iv[j] = iv_s[3 - j]; + } else { + /* ZUC doesn't need a swap */ + for (j = 0; j < 4; j++) + iv[j] = iv_s[j]; + } + + /* + * GP op header, lengths are expected in bits. + */ + vq_cmd_w0.u64 = 0; + vq_cmd_w0.s.param1 = rte_cpu_to_be_16(encr_data_len); + + /* + * In 83XX since we have a limitation of + * IV & Offset control word not part of instruction + * and need to be part of Data Buffer, we check if + * head room is there and then only do the Direct mode processing + */ + if (likely((req_flags & SINGLE_BUF_INPLACE) && + (req_flags & SINGLE_BUF_HEADTAILROOM))) { + void *dm_vaddr = params->bufs[0].vaddr; + uint64_t dm_dma_addr = params->bufs[0].dma_addr; + /* + * This flag indicates that there is 24 bytes head room and + * 8 bytes tail room available, so that we get to do + * DIRECT MODE with limitation + */ + + offset_vaddr = (uint64_t *)((uint8_t *)dm_vaddr - + OFF_CTRL_LEN - iv_len); + offset_dma = dm_dma_addr - OFF_CTRL_LEN - iv_len; + + /* DPTR */ + req->ist.ei1 = offset_dma; + /* RPTR should just exclude offset control word */ + req->ist.ei2 = dm_dma_addr - iv_len; + req->alternate_caddr = (uint64_t *)((uint8_t *)dm_vaddr + + outputlen - iv_len); + + vq_cmd_w0.s.dlen = rte_cpu_to_be_16(inputlen + OFF_CTRL_LEN); + + vq_cmd_w0.s.opcode = rte_cpu_to_be_16(opcode.flags); + + if (likely(iv_len)) { + uint32_t *iv_d = (uint32_t *)((uint8_t *)offset_vaddr + + OFF_CTRL_LEN); + memcpy(iv_d, iv, 16); + } + + /* iv offset is 0 */ + *offset_vaddr = rte_cpu_to_be_64((uint64_t)encr_offset << 16); + } else { + uint32_t i, g_size_bytes, s_size_bytes; + uint64_t dptr_dma, rptr_dma; + sg_comp_t *gather_comp; + sg_comp_t *scatter_comp; + uint8_t *in_buffer; + uint32_t *iv_d; + + /* save space for offset and iv... */ + offset_vaddr = m_vaddr; + offset_dma = m_dma; + + m_vaddr = (uint8_t *)m_vaddr + OFF_CTRL_LEN + iv_len; + m_dma += OFF_CTRL_LEN + iv_len; + m_size -= OFF_CTRL_LEN + iv_len; + + opcode.s.major |= CPT_DMA_MODE; + + vq_cmd_w0.s.opcode = rte_cpu_to_be_16(opcode.flags); + + /* DPTR has SG list */ + in_buffer = m_vaddr; + dptr_dma = m_dma; + + ((uint16_t *)in_buffer)[0] = 0; + ((uint16_t *)in_buffer)[1] = 0; + + /* TODO Add error check if space will be sufficient */ + gather_comp = (sg_comp_t *)((uint8_t *)m_vaddr + 8); + + /* + * Input Gather List + */ + i = 0; + + /* Offset control word */ + + /* iv offset is 0 */ + *offset_vaddr = rte_cpu_to_be_64((uint64_t)encr_offset << 16); + + i = fill_sg_comp(gather_comp, i, offset_dma, + OFF_CTRL_LEN + iv_len); + + iv_d = (uint32_t *)((uint8_t *)offset_vaddr + OFF_CTRL_LEN); + memcpy(iv_d, iv, 16); + + /* Add input data */ + size = inputlen - iv_len; + if (size) { + i = fill_sg_comp_from_iov(gather_comp, i, + params->src_iov, + 0, &size, NULL, 0); + if (size) + return ERR_BAD_INPUT_ARG; + } + ((uint16_t *)in_buffer)[2] = rte_cpu_to_be_16(i); + g_size_bytes = ((i + 3) / 4) * sizeof(sg_comp_t); + + /* + * Output Scatter List + */ + + i = 0; + scatter_comp = + (sg_comp_t *)((uint8_t *)gather_comp + g_size_bytes); + + /* IV */ + i = fill_sg_comp(scatter_comp, i, + offset_dma + OFF_CTRL_LEN, + iv_len); + + /* Add output data */ + size = outputlen - iv_len; + if (size) { + i = fill_sg_comp_from_iov(scatter_comp, i, + params->dst_iov, 0, + &size, NULL, 0); + + if (size) + return ERR_BAD_INPUT_ARG; + } + ((uint16_t *)in_buffer)[3] = rte_cpu_to_be_16(i); + s_size_bytes = ((i + 3) / 4) * sizeof(sg_comp_t); + + size = g_size_bytes + s_size_bytes + SG_LIST_HDR_SIZE; + + /* This is DPTR len incase of SG mode */ + vq_cmd_w0.s.dlen = rte_cpu_to_be_16(size); + + m_vaddr = (uint8_t *)m_vaddr + size; + m_dma += size; + m_size -= size; + + /* cpt alternate completion address saved earlier */ + req->alternate_caddr = (uint64_t *)((uint8_t *)c_vaddr - 8); + *req->alternate_caddr = ~((uint64_t)COMPLETION_CODE_INIT); + rptr_dma = c_dma - 8; + + req->ist.ei1 = dptr_dma; + req->ist.ei2 = rptr_dma; + } + + /* First 16-bit swap then 64-bit swap */ + /* TODO: HACK: Reverse the vq_cmd and cpt_req bit field definitions + * to eliminate all the swapping + */ + vq_cmd_w0.u64 = rte_cpu_to_be_64(vq_cmd_w0.u64); + + /* vq command w3 */ + vq_cmd_w3.u64 = 0; + vq_cmd_w3.s.grp = 0; + vq_cmd_w3.s.cptr = params->ctx_buf.dma_addr + + offsetof(struct cpt_ctx, zs_ctx); + + /* 16 byte aligned cpt res address */ + req->completion_addr = (uint64_t *)((uint8_t *)c_vaddr); + *req->completion_addr = COMPLETION_CODE_INIT; + req->comp_baddr = c_dma; + + /* Fill microcode part of instruction */ + req->ist.ei0 = vq_cmd_w0.u64; + req->ist.ei3 = vq_cmd_w3.u64; + + req->op = op; + + *prep_req = req; + return 0; +} + +static __rte_always_inline int +cpt_kasumi_enc_prep(uint32_t req_flags, + uint64_t d_offs, + uint64_t d_lens, + fc_params_t *params, + void *op, + void **prep_req) +{ + uint32_t size; + int32_t inputlen = 0, outputlen = 0; + struct cpt_ctx *cpt_ctx; + uint32_t mac_len = 0; + uint8_t i = 0; + struct cpt_request_info *req; + buf_ptr_t *buf_p; + uint32_t encr_offset, auth_offset; + uint32_t encr_data_len, auth_data_len; + int flags, m_size; + uint8_t *iv_s, *iv_d, iv_len = 8; + uint8_t dir = 0; + void *m_vaddr, *c_vaddr; + uint64_t m_dma, c_dma; + uint64_t *offset_vaddr, offset_dma; + vq_cmd_word0_t vq_cmd_w0; + vq_cmd_word3_t vq_cmd_w3; + opcode_info_t opcode; + uint8_t *in_buffer; + uint32_t g_size_bytes, s_size_bytes; + uint64_t dptr_dma, rptr_dma; + sg_comp_t *gather_comp; + sg_comp_t *scatter_comp; + + buf_p = ¶ms->meta_buf; + m_vaddr = buf_p->vaddr; + m_dma = buf_p->dma_addr; + m_size = buf_p->size; + + encr_offset = ENCR_OFFSET(d_offs) / 8; + auth_offset = AUTH_OFFSET(d_offs) / 8; + encr_data_len = ENCR_DLEN(d_lens); + auth_data_len = AUTH_DLEN(d_lens); + + cpt_ctx = params->ctx_buf.vaddr; + flags = cpt_ctx->zsk_flags; + mac_len = cpt_ctx->mac_len; + + if (flags == 0x0) + iv_s = params->iv_buf; + else + iv_s = params->auth_iv_buf; + + dir = iv_s[8] & 0x1; + + /* + * Save initial space that followed app data for completion code & + * alternate completion code to fall in same cache line as app data + */ + m_vaddr = (uint8_t *)m_vaddr + COMPLETION_CODE_SIZE; + m_dma += COMPLETION_CODE_SIZE; + size = (uint8_t *)RTE_PTR_ALIGN((uint8_t *)m_vaddr, 16) - + (uint8_t *)m_vaddr; + + c_vaddr = (uint8_t *)m_vaddr + size; + c_dma = m_dma + size; + size += sizeof(cpt_res_s_t); + + m_vaddr = (uint8_t *)m_vaddr + size; + m_dma += size; + m_size -= size; + + /* Reserve memory for cpt request info */ + req = m_vaddr; + + size = sizeof(struct cpt_request_info); + m_vaddr = (uint8_t *)m_vaddr + size; + m_dma += size; + m_size -= size; + + opcode.s.major = CPT_MAJOR_OP_KASUMI | CPT_DMA_MODE; + + /* indicates ECB/CBC, direction, ctx from cptr, iv from dptr */ + opcode.s.minor = ((1 << 6) | (cpt_ctx->k_ecb << 5) | + (dir << 4) | (0 << 3) | (flags & 0x7)); + + /* + * GP op header, lengths are expected in bits. + */ + vq_cmd_w0.u64 = 0; + vq_cmd_w0.s.param1 = rte_cpu_to_be_16(encr_data_len); + vq_cmd_w0.s.param2 = rte_cpu_to_be_16(auth_data_len); + vq_cmd_w0.s.opcode = rte_cpu_to_be_16(opcode.flags); + + /* consider iv len */ + if (flags == 0x0) { + encr_offset += iv_len; + auth_offset += iv_len; + } + + /* save space for offset ctrl and iv */ + offset_vaddr = m_vaddr; + offset_dma = m_dma; + + m_vaddr = (uint8_t *)m_vaddr + OFF_CTRL_LEN + iv_len; + m_dma += OFF_CTRL_LEN + iv_len; + m_size -= OFF_CTRL_LEN + iv_len; + + /* DPTR has SG list */ + in_buffer = m_vaddr; + dptr_dma = m_dma; + + ((uint16_t *)in_buffer)[0] = 0; + ((uint16_t *)in_buffer)[1] = 0; + + /* TODO Add error check if space will be sufficient */ + gather_comp = (sg_comp_t *)((uint8_t *)m_vaddr + 8); + + /* + * Input Gather List + */ + i = 0; + + /* Offset control word followed by iv */ + + if (flags == 0x0) { + inputlen = encr_offset + (RTE_ALIGN(encr_data_len, 8) / 8); + outputlen = inputlen; + /* iv offset is 0 */ + *offset_vaddr = rte_cpu_to_be_64((uint64_t)encr_offset << 16); + } else { + inputlen = auth_offset + (RTE_ALIGN(auth_data_len, 8) / 8); + outputlen = mac_len; + /* iv offset is 0 */ + *offset_vaddr = rte_cpu_to_be_64((uint64_t)auth_offset); + } + + i = fill_sg_comp(gather_comp, i, offset_dma, OFF_CTRL_LEN + iv_len); + + /* IV */ + iv_d = (uint8_t *)offset_vaddr + OFF_CTRL_LEN; + memcpy(iv_d, iv_s, iv_len); + + /* input data */ + size = inputlen - iv_len; + if (size) { + i = fill_sg_comp_from_iov(gather_comp, i, + params->src_iov, 0, + &size, NULL, 0); + + if (size) + return ERR_BAD_INPUT_ARG; + } + ((uint16_t *)in_buffer)[2] = rte_cpu_to_be_16(i); + g_size_bytes = ((i + 3) / 4) * sizeof(sg_comp_t); + + /* + * Output Scatter List + */ + + i = 0; + scatter_comp = (sg_comp_t *)((uint8_t *)gather_comp + g_size_bytes); + + if (flags == 0x1) { + /* IV in SLIST only for F8 */ + iv_len = 0; + } + + /* IV */ + if (iv_len) { + i = fill_sg_comp(scatter_comp, i, + offset_dma + OFF_CTRL_LEN, + iv_len); + } + + /* Add output data */ + if (req_flags & VALID_MAC_BUF) { + size = outputlen - iv_len - mac_len; + if (size) { + i = fill_sg_comp_from_iov(scatter_comp, i, + params->dst_iov, 0, + &size, NULL, 0); + + if (size) + return ERR_BAD_INPUT_ARG; + } + + /* mac data */ + if (mac_len) { + i = fill_sg_comp_from_buf(scatter_comp, i, + ¶ms->mac_buf); + } + } else { + /* Output including mac */ + size = outputlen - iv_len; + if (size) { + i = fill_sg_comp_from_iov(scatter_comp, i, + params->dst_iov, 0, + &size, NULL, 0); + + if (size) + return ERR_BAD_INPUT_ARG; + } + } + ((uint16_t *)in_buffer)[3] = rte_cpu_to_be_16(i); + s_size_bytes = ((i + 3) / 4) * sizeof(sg_comp_t); + + size = g_size_bytes + s_size_bytes + SG_LIST_HDR_SIZE; + + /* This is DPTR len incase of SG mode */ + vq_cmd_w0.s.dlen = rte_cpu_to_be_16(size); + + m_vaddr = (uint8_t *)m_vaddr + size; + m_dma += size; + m_size -= size; + + /* cpt alternate completion address saved earlier */ + req->alternate_caddr = (uint64_t *)((uint8_t *)c_vaddr - 8); + *req->alternate_caddr = ~((uint64_t)COMPLETION_CODE_INIT); + rptr_dma = c_dma - 8; + + req->ist.ei1 = dptr_dma; + req->ist.ei2 = rptr_dma; + + /* First 16-bit swap then 64-bit swap */ + /* TODO: HACK: Reverse the vq_cmd and cpt_req bit field definitions + * to eliminate all the swapping + */ + vq_cmd_w0.u64 = rte_cpu_to_be_64(vq_cmd_w0.u64); + + /* vq command w3 */ + vq_cmd_w3.u64 = 0; + vq_cmd_w3.s.grp = 0; + vq_cmd_w3.s.cptr = params->ctx_buf.dma_addr + + offsetof(struct cpt_ctx, k_ctx); + + /* 16 byte aligned cpt res address */ + req->completion_addr = (uint64_t *)((uint8_t *)c_vaddr); + *req->completion_addr = COMPLETION_CODE_INIT; + req->comp_baddr = c_dma; + + /* Fill microcode part of instruction */ + req->ist.ei0 = vq_cmd_w0.u64; + req->ist.ei3 = vq_cmd_w3.u64; + + req->op = op; + + *prep_req = req; + return 0; +} + +static __rte_always_inline int +cpt_kasumi_dec_prep(uint64_t d_offs, + uint64_t d_lens, + fc_params_t *params, + void *op, + void **prep_req) +{ + uint32_t size; + int32_t inputlen = 0, outputlen; + struct cpt_ctx *cpt_ctx; + uint8_t i = 0, iv_len = 8; + struct cpt_request_info *req; + buf_ptr_t *buf_p; + uint32_t encr_offset; + uint32_t encr_data_len; + int flags, m_size; + uint8_t dir = 0; + void *m_vaddr, *c_vaddr; + uint64_t m_dma, c_dma; + uint64_t *offset_vaddr, offset_dma; + vq_cmd_word0_t vq_cmd_w0; + vq_cmd_word3_t vq_cmd_w3; + opcode_info_t opcode; + uint8_t *in_buffer; + uint32_t g_size_bytes, s_size_bytes; + uint64_t dptr_dma, rptr_dma; + sg_comp_t *gather_comp; + sg_comp_t *scatter_comp; + + buf_p = ¶ms->meta_buf; + m_vaddr = buf_p->vaddr; + m_dma = buf_p->dma_addr; + m_size = buf_p->size; + + encr_offset = ENCR_OFFSET(d_offs) / 8; + encr_data_len = ENCR_DLEN(d_lens); + + cpt_ctx = params->ctx_buf.vaddr; + flags = cpt_ctx->zsk_flags; + /* + * Save initial space that followed app data for completion code & + * alternate completion code to fall in same cache line as app data + */ + m_vaddr = (uint8_t *)m_vaddr + COMPLETION_CODE_SIZE; + m_dma += COMPLETION_CODE_SIZE; + size = (uint8_t *)RTE_PTR_ALIGN((uint8_t *)m_vaddr, 16) - + (uint8_t *)m_vaddr; + + c_vaddr = (uint8_t *)m_vaddr + size; + c_dma = m_dma + size; + size += sizeof(cpt_res_s_t); + + m_vaddr = (uint8_t *)m_vaddr + size; + m_dma += size; + m_size -= size; + + /* Reserve memory for cpt request info */ + req = m_vaddr; + + size = sizeof(struct cpt_request_info); + m_vaddr = (uint8_t *)m_vaddr + size; + m_dma += size; + m_size -= size; + + opcode.s.major = CPT_MAJOR_OP_KASUMI | CPT_DMA_MODE; + + /* indicates ECB/CBC, direction, ctx from cptr, iv from dptr */ + opcode.s.minor = ((1 << 6) | (cpt_ctx->k_ecb << 5) | + (dir << 4) | (0 << 3) | (flags & 0x7)); + + /* + * GP op header, lengths are expected in bits. + */ + vq_cmd_w0.u64 = 0; + vq_cmd_w0.s.param1 = rte_cpu_to_be_16(encr_data_len); + vq_cmd_w0.s.opcode = rte_cpu_to_be_16(opcode.flags); + + /* consider iv len */ + encr_offset += iv_len; + + inputlen = iv_len + (RTE_ALIGN(encr_data_len, 8) / 8); + outputlen = inputlen; + + /* save space for offset ctrl & iv */ + offset_vaddr = m_vaddr; + offset_dma = m_dma; + + m_vaddr = (uint8_t *)m_vaddr + OFF_CTRL_LEN + iv_len; + m_dma += OFF_CTRL_LEN + iv_len; + m_size -= OFF_CTRL_LEN + iv_len; + + /* DPTR has SG list */ + in_buffer = m_vaddr; + dptr_dma = m_dma; + + ((uint16_t *)in_buffer)[0] = 0; + ((uint16_t *)in_buffer)[1] = 0; + + /* TODO Add error check if space will be sufficient */ + gather_comp = (sg_comp_t *)((uint8_t *)m_vaddr + 8); + + /* + * Input Gather List + */ + i = 0; + + /* Offset control word followed by iv */ + *offset_vaddr = rte_cpu_to_be_64((uint64_t)encr_offset << 16); + + i = fill_sg_comp(gather_comp, i, offset_dma, OFF_CTRL_LEN + iv_len); + + /* IV */ + memcpy((uint8_t *)offset_vaddr + OFF_CTRL_LEN, + params->iv_buf, iv_len); + + /* Add input data */ + size = inputlen - iv_len; + if (size) { + i = fill_sg_comp_from_iov(gather_comp, i, + params->src_iov, + 0, &size, NULL, 0); + if (size) + return ERR_BAD_INPUT_ARG; + } + ((uint16_t *)in_buffer)[2] = rte_cpu_to_be_16(i); + g_size_bytes = ((i + 3) / 4) * sizeof(sg_comp_t); + + /* + * Output Scatter List + */ + + i = 0; + scatter_comp = (sg_comp_t *)((uint8_t *)gather_comp + g_size_bytes); + + /* IV */ + i = fill_sg_comp(scatter_comp, i, + offset_dma + OFF_CTRL_LEN, + iv_len); + + /* Add output data */ + size = outputlen - iv_len; + if (size) { + i = fill_sg_comp_from_iov(scatter_comp, i, + params->dst_iov, 0, + &size, NULL, 0); + if (size) + return ERR_BAD_INPUT_ARG; + } + ((uint16_t *)in_buffer)[3] = rte_cpu_to_be_16(i); + s_size_bytes = ((i + 3) / 4) * sizeof(sg_comp_t); + + size = g_size_bytes + s_size_bytes + SG_LIST_HDR_SIZE; + + /* This is DPTR len incase of SG mode */ + vq_cmd_w0.s.dlen = rte_cpu_to_be_16(size); + + m_vaddr = (uint8_t *)m_vaddr + size; + m_dma += size; + m_size -= size; + + /* cpt alternate completion address saved earlier */ + req->alternate_caddr = (uint64_t *)((uint8_t *)c_vaddr - 8); + *req->alternate_caddr = ~((uint64_t)COMPLETION_CODE_INIT); + rptr_dma = c_dma - 8; + + req->ist.ei1 = dptr_dma; + req->ist.ei2 = rptr_dma; + + /* First 16-bit swap then 64-bit swap */ + /* TODO: HACK: Reverse the vq_cmd and cpt_req bit field definitions + * to eliminate all the swapping + */ + vq_cmd_w0.u64 = rte_cpu_to_be_64(vq_cmd_w0.u64); + + /* vq command w3 */ + vq_cmd_w3.u64 = 0; + vq_cmd_w3.s.grp = 0; + vq_cmd_w3.s.cptr = params->ctx_buf.dma_addr + + offsetof(struct cpt_ctx, k_ctx); + + /* 16 byte aligned cpt res address */ + req->completion_addr = (uint64_t *)((uint8_t *)c_vaddr); + *req->completion_addr = COMPLETION_CODE_INIT; + req->comp_baddr = c_dma; + + /* Fill microcode part of instruction */ + req->ist.ei0 = vq_cmd_w0.u64; + req->ist.ei3 = vq_cmd_w3.u64; + + req->op = op; + + *prep_req = req; + return 0; +} + +static __rte_always_inline void * +cpt_fc_dec_hmac_prep(uint32_t flags, + uint64_t d_offs, + uint64_t d_lens, + fc_params_t *fc_params, + void *op, int *ret_val) +{ + struct cpt_ctx *ctx = fc_params->ctx_buf.vaddr; + uint8_t fc_type; + void *prep_req = NULL; + int ret; + + fc_type = ctx->fc_type; + + if (likely(fc_type == FC_GEN)) { + ret = cpt_dec_hmac_prep(flags, d_offs, d_lens, + fc_params, op, &prep_req); + } else if (fc_type == ZUC_SNOW3G) { + ret = cpt_zuc_snow3g_dec_prep(flags, d_offs, d_lens, + fc_params, op, &prep_req); + } else if (fc_type == KASUMI) { + ret = cpt_kasumi_dec_prep(d_offs, d_lens, fc_params, op, + &prep_req); + } else { + /* + * For AUTH_ONLY case, + * MC only supports digest generation and verification + * should be done in software by memcmp() + */ + + ret = ERR_EIO; + } + + if (unlikely(!prep_req)) + *ret_val = ret; + return prep_req; +} + +static __rte_always_inline void *__hot +cpt_fc_enc_hmac_prep(uint32_t flags, uint64_t d_offs, uint64_t d_lens, + fc_params_t *fc_params, void *op, int *ret_val) +{ + struct cpt_ctx *ctx = fc_params->ctx_buf.vaddr; + uint8_t fc_type; + void *prep_req = NULL; + int ret; + + fc_type = ctx->fc_type; + + /* Common api for rest of the ops */ + if (likely(fc_type == FC_GEN)) { + ret = cpt_enc_hmac_prep(flags, d_offs, d_lens, + fc_params, op, &prep_req); + } else if (fc_type == ZUC_SNOW3G) { + ret = cpt_zuc_snow3g_enc_prep(flags, d_offs, d_lens, + fc_params, op, &prep_req); + } else if (fc_type == KASUMI) { + ret = cpt_kasumi_enc_prep(flags, d_offs, d_lens, + fc_params, op, &prep_req); + } else if (fc_type == HASH_HMAC) { + ret = cpt_digest_gen_prep(flags, d_lens, fc_params, op, + &prep_req); + } else { + ret = ERR_EIO; + } + + if (unlikely(!prep_req)) + *ret_val = ret; + return prep_req; +} + +static __rte_always_inline int +cpt_fc_auth_set_key(void *ctx, auth_type_t type, uint8_t *key, + uint16_t key_len, uint16_t mac_len) +{ + struct cpt_ctx *cpt_ctx = ctx; + mc_fc_context_t *fctx = &cpt_ctx->fctx; + uint64_t *ctrl_flags = NULL; + + if ((type >= ZUC_EIA3) && (type <= KASUMI_F9_ECB)) { + uint32_t keyx[4]; + + if (key_len != 16) + return -1; + /* No support for AEAD yet */ + if (cpt_ctx->enc_cipher) + return -1; + /* For ZUC/SNOW3G/Kasumi */ + switch (type) { + case SNOW3G_UIA2: + cpt_ctx->snow3g = 1; + gen_key_snow3g(key, keyx); + memcpy(cpt_ctx->zs_ctx.ci_key, keyx, key_len); + cpt_ctx->fc_type = ZUC_SNOW3G; + cpt_ctx->zsk_flags = 0x1; + break; + case ZUC_EIA3: + cpt_ctx->snow3g = 0; + memcpy(cpt_ctx->zs_ctx.ci_key, key, key_len); + memcpy(cpt_ctx->zs_ctx.zuc_const, zuc_d, 32); + cpt_ctx->fc_type = ZUC_SNOW3G; + cpt_ctx->zsk_flags = 0x1; + break; + case KASUMI_F9_ECB: + /* Kasumi ECB mode */ + cpt_ctx->k_ecb = 1; + memcpy(cpt_ctx->k_ctx.ci_key, key, key_len); + cpt_ctx->fc_type = KASUMI; + cpt_ctx->zsk_flags = 0x1; + break; + case KASUMI_F9_CBC: + memcpy(cpt_ctx->k_ctx.ci_key, key, key_len); + cpt_ctx->fc_type = KASUMI; + cpt_ctx->zsk_flags = 0x1; + break; + default: + return -1; + } + cpt_ctx->mac_len = 4; + cpt_ctx->hash_type = type; + return 0; + } + + if (!(cpt_ctx->fc_type == FC_GEN && !type)) { + if (!cpt_ctx->fc_type || !cpt_ctx->enc_cipher) + cpt_ctx->fc_type = HASH_HMAC; + } + + ctrl_flags = (uint64_t *)&fctx->enc.enc_ctrl.flags; + *ctrl_flags = rte_be_to_cpu_64(*ctrl_flags); + + /* For GMAC auth, cipher must be NULL */ + if (type == GMAC_TYPE) + CPT_P_ENC_CTRL(fctx).enc_cipher = 0; + + CPT_P_ENC_CTRL(fctx).hash_type = cpt_ctx->hash_type = type; + CPT_P_ENC_CTRL(fctx).mac_len = cpt_ctx->mac_len = mac_len; + + if (key_len) { + cpt_ctx->hmac = 1; + memset(cpt_ctx->auth_key, 0, sizeof(cpt_ctx->auth_key)); + memcpy(cpt_ctx->auth_key, key, key_len); + cpt_ctx->auth_key_len = key_len; + memset(fctx->hmac.ipad, 0, sizeof(fctx->hmac.ipad)); + memset(fctx->hmac.opad, 0, sizeof(fctx->hmac.opad)); + memcpy(fctx->hmac.opad, key, key_len); + CPT_P_ENC_CTRL(fctx).auth_input_type = 1; + } + *ctrl_flags = rte_cpu_to_be_64(*ctrl_flags); + return 0; +} + +static __rte_always_inline int +fill_sess_aead(struct rte_crypto_sym_xform *xform, + struct cpt_sess_misc *sess) +{ + struct rte_crypto_aead_xform *aead_form; + cipher_type_t enc_type = 0; /* NULL Cipher type */ + auth_type_t auth_type = 0; /* NULL Auth type */ + uint32_t cipher_key_len = 0; + uint8_t zsk_flag = 0, aes_gcm = 0; + aead_form = &xform->aead; + void *ctx; + + if (aead_form->op == RTE_CRYPTO_AEAD_OP_ENCRYPT && + aead_form->algo == RTE_CRYPTO_AEAD_AES_GCM) { + sess->cpt_op |= CPT_OP_CIPHER_ENCRYPT; + sess->cpt_op |= CPT_OP_AUTH_GENERATE; + } else if (aead_form->op == RTE_CRYPTO_AEAD_OP_DECRYPT && + aead_form->algo == RTE_CRYPTO_AEAD_AES_GCM) { + sess->cpt_op |= CPT_OP_CIPHER_DECRYPT; + sess->cpt_op |= CPT_OP_AUTH_VERIFY; + } else { + CPT_LOG_DP_ERR("Unknown cipher operation\n"); + return -1; + } + switch (aead_form->algo) { + case RTE_CRYPTO_AEAD_AES_GCM: + enc_type = AES_GCM; + cipher_key_len = 16; + aes_gcm = 1; + break; + case RTE_CRYPTO_AEAD_AES_CCM: + CPT_LOG_DP_ERR("Crypto: Unsupported cipher algo %u", + aead_form->algo); + return -1; + default: + CPT_LOG_DP_ERR("Crypto: Undefined cipher algo %u specified", + aead_form->algo); + return -1; + } + if (aead_form->key.length < cipher_key_len) { + CPT_LOG_DP_ERR("Invalid cipher params keylen %lu", + (unsigned int long)aead_form->key.length); + return -1; + } + sess->zsk_flag = zsk_flag; + sess->aes_gcm = aes_gcm; + sess->mac_len = aead_form->digest_length; + sess->iv_offset = aead_form->iv.offset; + sess->iv_length = aead_form->iv.length; + sess->aad_length = aead_form->aad_length; + ctx = (void *)((uint8_t *)sess + sizeof(struct cpt_sess_misc)), + + cpt_fc_ciph_set_key(ctx, enc_type, aead_form->key.data, + aead_form->key.length, NULL); + + cpt_fc_auth_set_key(ctx, auth_type, NULL, 0, aead_form->digest_length); + + return 0; +} + +static __rte_always_inline int +fill_sess_cipher(struct rte_crypto_sym_xform *xform, + struct cpt_sess_misc *sess) +{ + struct rte_crypto_cipher_xform *c_form; + cipher_type_t enc_type = 0; /* NULL Cipher type */ + uint32_t cipher_key_len = 0; + uint8_t zsk_flag = 0, aes_gcm = 0, aes_ctr = 0, is_null = 0; + + if (xform->type != RTE_CRYPTO_SYM_XFORM_CIPHER) + return -1; + + c_form = &xform->cipher; + + if (c_form->op == RTE_CRYPTO_CIPHER_OP_ENCRYPT) + sess->cpt_op |= CPT_OP_CIPHER_ENCRYPT; + else if (c_form->op == RTE_CRYPTO_CIPHER_OP_DECRYPT) + sess->cpt_op |= CPT_OP_CIPHER_DECRYPT; + else { + CPT_LOG_DP_ERR("Unknown cipher operation\n"); + return -1; + } + + switch (c_form->algo) { + case RTE_CRYPTO_CIPHER_AES_CBC: + enc_type = AES_CBC; + cipher_key_len = 16; + break; + case RTE_CRYPTO_CIPHER_3DES_CBC: + enc_type = DES3_CBC; + cipher_key_len = 24; + break; + case RTE_CRYPTO_CIPHER_DES_CBC: + /* DES is implemented using 3DES in hardware */ + enc_type = DES3_CBC; + cipher_key_len = 8; + break; + case RTE_CRYPTO_CIPHER_AES_CTR: + enc_type = AES_CTR; + cipher_key_len = 16; + aes_ctr = 1; + break; + case RTE_CRYPTO_CIPHER_NULL: + enc_type = 0; + is_null = 1; + break; + case RTE_CRYPTO_CIPHER_KASUMI_F8: + enc_type = KASUMI_F8_ECB; + cipher_key_len = 16; + zsk_flag = K_F8; + break; + case RTE_CRYPTO_CIPHER_SNOW3G_UEA2: + enc_type = SNOW3G_UEA2; + cipher_key_len = 16; + zsk_flag = ZS_EA; + break; + case RTE_CRYPTO_CIPHER_ZUC_EEA3: + enc_type = ZUC_EEA3; + cipher_key_len = 16; + zsk_flag = ZS_EA; + break; + case RTE_CRYPTO_CIPHER_AES_XTS: + enc_type = AES_XTS; + cipher_key_len = 16; + break; + case RTE_CRYPTO_CIPHER_3DES_ECB: + enc_type = DES3_ECB; + cipher_key_len = 24; + break; + case RTE_CRYPTO_CIPHER_AES_ECB: + enc_type = AES_ECB; + cipher_key_len = 16; + break; + case RTE_CRYPTO_CIPHER_3DES_CTR: + case RTE_CRYPTO_CIPHER_AES_F8: + case RTE_CRYPTO_CIPHER_ARC4: + CPT_LOG_DP_ERR("Crypto: Unsupported cipher algo %u", + c_form->algo); + return -1; + default: + CPT_LOG_DP_ERR("Crypto: Undefined cipher algo %u specified", + c_form->algo); + return -1; + } + + if (c_form->key.length < cipher_key_len) { + CPT_LOG_DP_ERR("Invalid cipher params keylen %lu", + (unsigned long) c_form->key.length); + return -1; + } + + sess->zsk_flag = zsk_flag; + sess->aes_gcm = aes_gcm; + sess->aes_ctr = aes_ctr; + sess->iv_offset = c_form->iv.offset; + sess->iv_length = c_form->iv.length; + sess->is_null = is_null; + + cpt_fc_ciph_set_key(SESS_PRIV(sess), enc_type, c_form->key.data, + c_form->key.length, NULL); + + return 0; +} + +static __rte_always_inline int +fill_sess_auth(struct rte_crypto_sym_xform *xform, + struct cpt_sess_misc *sess) +{ + struct rte_crypto_auth_xform *a_form; + auth_type_t auth_type = 0; /* NULL Auth type */ + uint8_t zsk_flag = 0, aes_gcm = 0, is_null = 0; + + if (xform->type != RTE_CRYPTO_SYM_XFORM_AUTH) + goto error_out; + + a_form = &xform->auth; + + if (a_form->op == RTE_CRYPTO_AUTH_OP_VERIFY) + sess->cpt_op |= CPT_OP_AUTH_VERIFY; + else if (a_form->op == RTE_CRYPTO_AUTH_OP_GENERATE) + sess->cpt_op |= CPT_OP_AUTH_GENERATE; + else { + CPT_LOG_DP_ERR("Unknown auth operation"); + return -1; + } + + if (a_form->key.length > 64) { + CPT_LOG_DP_ERR("Auth key length is big"); + return -1; + } + + switch (a_form->algo) { + case RTE_CRYPTO_AUTH_SHA1_HMAC: + /* Fall through */ + case RTE_CRYPTO_AUTH_SHA1: + auth_type = SHA1_TYPE; + break; + case RTE_CRYPTO_AUTH_SHA256_HMAC: + case RTE_CRYPTO_AUTH_SHA256: + auth_type = SHA2_SHA256; + break; + case RTE_CRYPTO_AUTH_SHA512_HMAC: + case RTE_CRYPTO_AUTH_SHA512: + auth_type = SHA2_SHA512; + break; + case RTE_CRYPTO_AUTH_AES_GMAC: + auth_type = GMAC_TYPE; + aes_gcm = 1; + break; + case RTE_CRYPTO_AUTH_SHA224_HMAC: + case RTE_CRYPTO_AUTH_SHA224: + auth_type = SHA2_SHA224; + break; + case RTE_CRYPTO_AUTH_SHA384_HMAC: + case RTE_CRYPTO_AUTH_SHA384: + auth_type = SHA2_SHA384; + break; + case RTE_CRYPTO_AUTH_MD5_HMAC: + case RTE_CRYPTO_AUTH_MD5: + auth_type = MD5_TYPE; + break; + case RTE_CRYPTO_AUTH_KASUMI_F9: + auth_type = KASUMI_F9_ECB; + /* + * Indicate that direction needs to be taken out + * from end of src + */ + zsk_flag = K_F9; + break; + case RTE_CRYPTO_AUTH_SNOW3G_UIA2: + auth_type = SNOW3G_UIA2; + zsk_flag = ZS_IA; + break; + case RTE_CRYPTO_AUTH_ZUC_EIA3: + auth_type = ZUC_EIA3; + zsk_flag = ZS_IA; + break; + case RTE_CRYPTO_AUTH_NULL: + auth_type = 0; + is_null = 1; + break; + case RTE_CRYPTO_AUTH_AES_XCBC_MAC: + case RTE_CRYPTO_AUTH_AES_CMAC: + case RTE_CRYPTO_AUTH_AES_CBC_MAC: + CPT_LOG_DP_ERR("Crypto: Unsupported hash algo %u", + a_form->algo); + goto error_out; + default: + CPT_LOG_DP_ERR("Crypto: Undefined Hash algo %u specified", + a_form->algo); + goto error_out; + } + + sess->zsk_flag = zsk_flag; + sess->aes_gcm = aes_gcm; + sess->mac_len = a_form->digest_length; + sess->is_null = is_null; + if (zsk_flag) { + sess->auth_iv_offset = a_form->iv.offset; + sess->auth_iv_length = a_form->iv.length; + } + cpt_fc_auth_set_key(SESS_PRIV(sess), auth_type, a_form->key.data, + a_form->key.length, a_form->digest_length); + + return 0; + +error_out: + return -1; +} + +static __rte_always_inline int +fill_sess_gmac(struct rte_crypto_sym_xform *xform, + struct cpt_sess_misc *sess) +{ + struct rte_crypto_auth_xform *a_form; + cipher_type_t enc_type = 0; /* NULL Cipher type */ + auth_type_t auth_type = 0; /* NULL Auth type */ + uint8_t zsk_flag = 0, aes_gcm = 0; + void *ctx; + + if (xform->type != RTE_CRYPTO_SYM_XFORM_AUTH) + return -1; + + a_form = &xform->auth; + + if (a_form->op == RTE_CRYPTO_AUTH_OP_GENERATE) + sess->cpt_op |= CPT_OP_ENCODE; + else if (a_form->op == RTE_CRYPTO_AUTH_OP_VERIFY) + sess->cpt_op |= CPT_OP_DECODE; + else { + CPT_LOG_DP_ERR("Unknown auth operation"); + return -1; + } + + switch (a_form->algo) { + case RTE_CRYPTO_AUTH_AES_GMAC: + enc_type = AES_GCM; + auth_type = GMAC_TYPE; + break; + default: + CPT_LOG_DP_ERR("Crypto: Undefined cipher algo %u specified", + a_form->algo); + return -1; + } + + sess->zsk_flag = zsk_flag; + sess->aes_gcm = aes_gcm; + sess->is_gmac = 1; + sess->iv_offset = a_form->iv.offset; + sess->iv_length = a_form->iv.length; + sess->mac_len = a_form->digest_length; + ctx = (void *)((uint8_t *)sess + sizeof(struct cpt_sess_misc)), + + cpt_fc_ciph_set_key(ctx, enc_type, a_form->key.data, + a_form->key.length, NULL); + cpt_fc_auth_set_key(ctx, auth_type, NULL, 0, a_form->digest_length); + + return 0; +} + +static __rte_always_inline void * +alloc_op_meta(struct rte_mbuf *m_src, + buf_ptr_t *buf, + int32_t len, + struct rte_mempool *cpt_meta_pool) +{ + uint8_t *mdata; + +#ifndef CPT_ALWAYS_USE_SEPARATE_BUF + if (likely(m_src && (m_src->nb_segs == 1))) { + int32_t tailroom; + phys_addr_t mphys; + + /* Check if tailroom is sufficient to hold meta data */ + tailroom = rte_pktmbuf_tailroom(m_src); + if (likely(tailroom > len + 8)) { + mdata = (uint8_t *)m_src->buf_addr + m_src->buf_len; + mphys = m_src->buf_physaddr + m_src->buf_len; + mdata -= len; + mphys -= len; + buf->vaddr = mdata; + buf->dma_addr = mphys; + buf->size = len; + /* Indicate that this is a mbuf allocated mdata */ + mdata = (uint8_t *)((uint64_t)mdata | 1ull); + return mdata; + } + } +#else + RTE_SET_USED(m_src); +#endif + + if (unlikely(rte_mempool_get(cpt_meta_pool, (void **)&mdata) < 0)) + return NULL; + + buf->vaddr = mdata; + buf->dma_addr = rte_mempool_virt2iova(mdata); + buf->size = len; + + return mdata; +} + +/** + * cpt_free_metabuf - free metabuf to mempool. + * @param instance: pointer to instance. + * @param objp: pointer to the metabuf. + */ +static __rte_always_inline void +free_op_meta(void *mdata, struct rte_mempool *cpt_meta_pool) +{ + bool nofree = ((uintptr_t)mdata & 1ull); + + if (likely(nofree)) + return; + rte_mempool_put(cpt_meta_pool, mdata); +} + +static __rte_always_inline uint32_t +prepare_iov_from_pkt(struct rte_mbuf *pkt, + iov_ptr_t *iovec, uint32_t start_offset) +{ + uint16_t index = 0; + void *seg_data = NULL; + phys_addr_t seg_phys; + int32_t seg_size = 0; + + if (!pkt) { + iovec->buf_cnt = 0; + return 0; + } + + if (!start_offset) { + seg_data = rte_pktmbuf_mtod(pkt, void *); + seg_phys = rte_pktmbuf_mtophys(pkt); + seg_size = pkt->data_len; + } else { + while (start_offset >= pkt->data_len) { + start_offset -= pkt->data_len; + pkt = pkt->next; + } + + seg_data = rte_pktmbuf_mtod_offset(pkt, void *, start_offset); + seg_phys = rte_pktmbuf_mtophys_offset(pkt, start_offset); + seg_size = pkt->data_len - start_offset; + if (!seg_size) + return 1; + } + + /* first seg */ + iovec->bufs[index].vaddr = seg_data; + iovec->bufs[index].dma_addr = seg_phys; + iovec->bufs[index].size = seg_size; + index++; + pkt = pkt->next; + + while (unlikely(pkt != NULL)) { + seg_data = rte_pktmbuf_mtod(pkt, void *); + seg_phys = rte_pktmbuf_mtophys(pkt); + seg_size = pkt->data_len; + if (!seg_size) + break; + + iovec->bufs[index].vaddr = seg_data; + iovec->bufs[index].dma_addr = seg_phys; + iovec->bufs[index].size = seg_size; + + index++; + + pkt = pkt->next; + } + + iovec->buf_cnt = index; + return 0; +} + +static __rte_always_inline uint32_t +prepare_iov_from_pkt_inplace(struct rte_mbuf *pkt, + fc_params_t *param, + uint32_t *flags) +{ + uint16_t index = 0; + void *seg_data = NULL; + phys_addr_t seg_phys; + uint32_t seg_size = 0; + iov_ptr_t *iovec; + + seg_data = rte_pktmbuf_mtod(pkt, void *); + seg_phys = rte_pktmbuf_mtophys(pkt); + seg_size = pkt->data_len; + + /* first seg */ + if (likely(!pkt->next)) { + uint32_t headroom, tailroom; + + *flags |= SINGLE_BUF_INPLACE; + headroom = rte_pktmbuf_headroom(pkt); + tailroom = rte_pktmbuf_tailroom(pkt); + if (likely((headroom >= 24) && + (tailroom >= 8))) { + /* In 83XX this is prerequivisit for Direct mode */ + *flags |= SINGLE_BUF_HEADTAILROOM; + } + param->bufs[0].vaddr = seg_data; + param->bufs[0].dma_addr = seg_phys; + param->bufs[0].size = seg_size; + return 0; + } + iovec = param->src_iov; + iovec->bufs[index].vaddr = seg_data; + iovec->bufs[index].dma_addr = seg_phys; + iovec->bufs[index].size = seg_size; + index++; + pkt = pkt->next; + + while (unlikely(pkt != NULL)) { + seg_data = rte_pktmbuf_mtod(pkt, void *); + seg_phys = rte_pktmbuf_mtophys(pkt); + seg_size = pkt->data_len; + + if (!seg_size) + break; + + iovec->bufs[index].vaddr = seg_data; + iovec->bufs[index].dma_addr = seg_phys; + iovec->bufs[index].size = seg_size; + + index++; + + pkt = pkt->next; + } + + iovec->buf_cnt = index; + return 0; +} + +static __rte_always_inline void * +fill_fc_params(struct rte_crypto_op *cop, + struct cpt_sess_misc *sess_misc, + void **mdata_ptr, + int *op_ret) +{ + uint32_t space = 0; + struct rte_crypto_sym_op *sym_op = cop->sym; + void *mdata; + uintptr_t *op; + uint32_t mc_hash_off; + uint32_t flags = 0; + uint64_t d_offs, d_lens; + void *prep_req = NULL; + struct rte_mbuf *m_src, *m_dst; + uint8_t cpt_op = sess_misc->cpt_op; + uint8_t zsk_flag = sess_misc->zsk_flag; + uint8_t aes_gcm = sess_misc->aes_gcm; + uint16_t mac_len = sess_misc->mac_len; +#ifdef CPT_ALWAYS_USE_SG_MODE + uint8_t inplace = 0; +#else + uint8_t inplace = 1; +#endif + fc_params_t fc_params; + char src[SRC_IOV_SIZE]; + char dst[SRC_IOV_SIZE]; + uint32_t iv_buf[4]; + struct cptvf_meta_info *cpt_m_info = + (struct cptvf_meta_info *)(*mdata_ptr); + + if (likely(sess_misc->iv_length)) { + flags |= VALID_IV_BUF; + fc_params.iv_buf = rte_crypto_op_ctod_offset(cop, + uint8_t *, sess_misc->iv_offset); + if (sess_misc->aes_ctr && + unlikely(sess_misc->iv_length != 16)) { + memcpy((uint8_t *)iv_buf, + rte_crypto_op_ctod_offset(cop, + uint8_t *, sess_misc->iv_offset), 12); + iv_buf[3] = rte_cpu_to_be_32(0x1); + fc_params.iv_buf = iv_buf; + } + } + + if (zsk_flag) { + fc_params.auth_iv_buf = rte_crypto_op_ctod_offset(cop, + uint8_t *, + sess_misc->auth_iv_offset); + if (zsk_flag == K_F9) { + CPT_LOG_DP_ERR("Should not reach here for " + "kasumi F9\n"); + } + if (zsk_flag != ZS_EA) + inplace = 0; + } + m_src = sym_op->m_src; + m_dst = sym_op->m_dst; + + if (aes_gcm) { + uint8_t *salt; + uint8_t *aad_data; + uint16_t aad_len; + + d_offs = sym_op->aead.data.offset; + d_lens = sym_op->aead.data.length; + mc_hash_off = sym_op->aead.data.offset + + sym_op->aead.data.length; + + aad_data = sym_op->aead.aad.data; + aad_len = sess_misc->aad_length; + if (likely((aad_data + aad_len) == + rte_pktmbuf_mtod_offset(m_src, + uint8_t *, + sym_op->aead.data.offset))) { + d_offs = (d_offs - aad_len) | (d_offs << 16); + d_lens = (d_lens + aad_len) | (d_lens << 32); + } else { + fc_params.aad_buf.vaddr = sym_op->aead.aad.data; + fc_params.aad_buf.dma_addr = sym_op->aead.aad.phys_addr; + fc_params.aad_buf.size = aad_len; + flags |= VALID_AAD_BUF; + inplace = 0; + d_offs = d_offs << 16; + d_lens = d_lens << 32; + } + + salt = fc_params.iv_buf; + if (unlikely(*(uint32_t *)salt != sess_misc->salt)) { + cpt_fc_salt_update(SESS_PRIV(sess_misc), salt); + sess_misc->salt = *(uint32_t *)salt; + } + fc_params.iv_buf = salt + 4; + if (likely(mac_len)) { + struct rte_mbuf *m = (cpt_op & CPT_OP_ENCODE) ? m_dst : + m_src; + + if (!m) + m = m_src; + + /* hmac immediately following data is best case */ + if (unlikely(rte_pktmbuf_mtod(m, uint8_t *) + + mc_hash_off != + (uint8_t *)sym_op->aead.digest.data)) { + flags |= VALID_MAC_BUF; + fc_params.mac_buf.size = sess_misc->mac_len; + fc_params.mac_buf.vaddr = + sym_op->aead.digest.data; + fc_params.mac_buf.dma_addr = + sym_op->aead.digest.phys_addr; + inplace = 0; + } + } + } else { + d_offs = sym_op->cipher.data.offset; + d_lens = sym_op->cipher.data.length; + mc_hash_off = sym_op->cipher.data.offset + + sym_op->cipher.data.length; + d_offs = (d_offs << 16) | sym_op->auth.data.offset; + d_lens = (d_lens << 32) | sym_op->auth.data.length; + + if (mc_hash_off < (sym_op->auth.data.offset + + sym_op->auth.data.length)){ + mc_hash_off = (sym_op->auth.data.offset + + sym_op->auth.data.length); + } + /* for gmac, salt should be updated like in gcm */ + if (unlikely(sess_misc->is_gmac)) { + uint8_t *salt; + salt = fc_params.iv_buf; + if (unlikely(*(uint32_t *)salt != sess_misc->salt)) { + cpt_fc_salt_update(SESS_PRIV(sess_misc), salt); + sess_misc->salt = *(uint32_t *)salt; + } + fc_params.iv_buf = salt + 4; + } + if (likely(mac_len)) { + struct rte_mbuf *m; + + m = (cpt_op & CPT_OP_ENCODE) ? m_dst : m_src; + if (!m) + m = m_src; + + /* hmac immediately following data is best case */ + if (unlikely(rte_pktmbuf_mtod(m, uint8_t *) + + mc_hash_off != + (uint8_t *)sym_op->auth.digest.data)) { + flags |= VALID_MAC_BUF; + fc_params.mac_buf.size = + sess_misc->mac_len; + fc_params.mac_buf.vaddr = + sym_op->auth.digest.data; + fc_params.mac_buf.dma_addr = + sym_op->auth.digest.phys_addr; + inplace = 0; + } + } + } + fc_params.ctx_buf.vaddr = SESS_PRIV(sess_misc); + fc_params.ctx_buf.dma_addr = sess_misc->ctx_dma_addr; + + if (unlikely(sess_misc->is_null || sess_misc->cpt_op == CPT_OP_DECODE)) + inplace = 0; + + if (likely(!m_dst && inplace)) { + /* Case of single buffer without AAD buf or + * separate mac buf in place and + * not air crypto + */ + fc_params.dst_iov = fc_params.src_iov = (void *)src; + + if (unlikely(prepare_iov_from_pkt_inplace(m_src, + &fc_params, + &flags))) { + CPT_LOG_DP_ERR("Prepare inplace src iov failed"); + *op_ret = -1; + return NULL; + } + + } else { + /* Out of place processing */ + fc_params.src_iov = (void *)src; + fc_params.dst_iov = (void *)dst; + + /* Store SG I/O in the api for reuse */ + if (prepare_iov_from_pkt(m_src, fc_params.src_iov, 0)) { + CPT_LOG_DP_ERR("Prepare src iov failed"); + *op_ret = -1; + return NULL; + } + + if (unlikely(m_dst != NULL)) { + uint32_t pkt_len; + + /* Try to make room as much as src has */ + m_dst = sym_op->m_dst; + pkt_len = rte_pktmbuf_pkt_len(m_dst); + + if (unlikely(pkt_len < rte_pktmbuf_pkt_len(m_src))) { + pkt_len = rte_pktmbuf_pkt_len(m_src) - pkt_len; + if (!rte_pktmbuf_append(m_dst, pkt_len)) { + CPT_LOG_DP_ERR("Not enough space in " + "m_dst %p, need %u" + " more", + m_dst, pkt_len); + return NULL; + } + } + + if (prepare_iov_from_pkt(m_dst, fc_params.dst_iov, 0)) { + CPT_LOG_DP_ERR("Prepare dst iov failed for " + "m_dst %p", m_dst); + return NULL; + } + } else { + fc_params.dst_iov = (void *)src; + } + } + + if (likely(flags & SINGLE_BUF_HEADTAILROOM)) + mdata = alloc_op_meta(m_src, + &fc_params.meta_buf, + cpt_m_info->cptvf_op_sb_mlen, + cpt_m_info->cptvf_meta_pool); + else + mdata = alloc_op_meta(NULL, + &fc_params.meta_buf, + cpt_m_info->cptvf_op_mlen, + cpt_m_info->cptvf_meta_pool); + + if (unlikely(mdata == NULL)) { + CPT_LOG_DP_ERR("Error allocating meta buffer for request"); + return NULL; + } + + op = (uintptr_t *)((uintptr_t)mdata & (uintptr_t)~1ull); + op[0] = (uintptr_t)mdata; + op[1] = (uintptr_t)cop; + op[2] = op[3] = 0; /* Used to indicate auth verify */ + space += 4 * sizeof(uint64_t); + + fc_params.meta_buf.vaddr = (uint8_t *)op + space; + fc_params.meta_buf.dma_addr += space; + fc_params.meta_buf.size -= space; + + /* Finally prepare the instruction */ + if (cpt_op & CPT_OP_ENCODE) + prep_req = cpt_fc_enc_hmac_prep(flags, d_offs, d_lens, + &fc_params, op, op_ret); + else + prep_req = cpt_fc_dec_hmac_prep(flags, d_offs, d_lens, + &fc_params, op, op_ret); + + if (unlikely(!prep_req)) + free_op_meta(mdata, cpt_m_info->cptvf_meta_pool); + *mdata_ptr = mdata; + return prep_req; +} + +static __rte_always_inline void +compl_auth_verify(struct rte_crypto_op *op, + uint8_t *gen_mac, + uint64_t mac_len) +{ + uint8_t *mac; + struct rte_crypto_sym_op *sym_op = op->sym; + + if (sym_op->auth.digest.data) + mac = sym_op->auth.digest.data; + else + mac = rte_pktmbuf_mtod_offset(sym_op->m_src, + uint8_t *, + sym_op->auth.data.length + + sym_op->auth.data.offset); + if (!mac) { + op->status = RTE_CRYPTO_OP_STATUS_ERROR; + return; + } + + if (memcmp(mac, gen_mac, mac_len)) + op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED; + else + op->status = RTE_CRYPTO_OP_STATUS_SUCCESS; +} + +static __rte_always_inline int +instance_session_cfg(struct rte_crypto_sym_xform *xform, void *sess) +{ + struct rte_crypto_sym_xform *chain; + + CPT_PMD_INIT_FUNC_TRACE(); + + if (cpt_is_algo_supported(xform)) + goto err; + + chain = xform; + while (chain) { + switch (chain->type) { + case RTE_CRYPTO_SYM_XFORM_AEAD: + if (fill_sess_aead(chain, sess)) + goto err; + break; + case RTE_CRYPTO_SYM_XFORM_CIPHER: + if (fill_sess_cipher(chain, sess)) + goto err; + break; + case RTE_CRYPTO_SYM_XFORM_AUTH: + if (chain->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC) { + if (fill_sess_gmac(chain, sess)) + goto err; + } else { + if (fill_sess_auth(chain, sess)) + goto err; + } + break; + default: + CPT_LOG_DP_ERR("Invalid crypto xform type"); + break; + } + chain = chain->next; + } + + return 0; + +err: + return -1; +} + +static __rte_always_inline void +find_kasumif9_direction_and_length(uint8_t *src, + uint32_t counter_num_bytes, + uint32_t *addr_length_in_bits, + uint8_t *addr_direction) +{ + uint8_t found = 0; + while (!found && counter_num_bytes > 0) { + counter_num_bytes--; + if (src[counter_num_bytes] == 0x00) + continue; + if (src[counter_num_bytes] == 0x80) { + *addr_direction = src[counter_num_bytes - 1] & 0x1; + *addr_length_in_bits = counter_num_bytes * 8 - 1; + found = 1; + } else { + int i = 0; + uint8_t last_byte = src[counter_num_bytes]; + for (i = 0; i < 8 && found == 0; i++) { + if (last_byte & (1 << i)) { + *addr_direction = (last_byte >> (i+1)) + & 0x1; + if (i != 6) + *addr_length_in_bits = + counter_num_bytes * 8 + + (8 - (i + 2)); + else + *addr_length_in_bits = + counter_num_bytes * 8; + found = 1; + } + } + } + } +} + +/* + * This handles all auth only except AES_GMAC + */ +static __rte_always_inline void * +fill_digest_params(struct rte_crypto_op *cop, + struct cpt_sess_misc *sess, + void **mdata_ptr, + int *op_ret) +{ + uint32_t space = 0; + struct rte_crypto_sym_op *sym_op = cop->sym; + void *mdata; + phys_addr_t mphys; + uint64_t *op; + uint32_t auth_range_off; + uint32_t flags = 0; + uint64_t d_offs = 0, d_lens; + void *prep_req = NULL; + struct rte_mbuf *m_src, *m_dst; + uint16_t auth_op = sess->cpt_op & CPT_OP_AUTH_MASK; + uint8_t zsk_flag = sess->zsk_flag; + uint16_t mac_len = sess->mac_len; + fc_params_t params; + char src[SRC_IOV_SIZE]; + uint8_t iv_buf[16]; + memset(¶ms, 0, sizeof(fc_params_t)); + struct cptvf_meta_info *cpt_m_info = + (struct cptvf_meta_info *)(*mdata_ptr); + + m_src = sym_op->m_src; + + /* For just digest lets force mempool alloc */ + mdata = alloc_op_meta(NULL, ¶ms.meta_buf, cpt_m_info->cptvf_op_mlen, + cpt_m_info->cptvf_meta_pool); + if (mdata == NULL) { + CPT_LOG_DP_ERR("Error allocating meta buffer for request"); + *op_ret = -ENOMEM; + return NULL; + } + + mphys = params.meta_buf.dma_addr; + + op = mdata; + op[0] = (uintptr_t)mdata; + op[1] = (uintptr_t)cop; + op[2] = op[3] = 0; /* Used to indicate auth verify */ + space += 4 * sizeof(uint64_t); + + auth_range_off = sym_op->auth.data.offset; + + flags = VALID_MAC_BUF; + params.src_iov = (void *)src; + if (unlikely(zsk_flag)) { + /* + * Since for Zuc, Kasumi, Snow3g offsets are in bits + * we will send pass through even for auth only case, + * let MC handle it + */ + d_offs = auth_range_off; + auth_range_off = 0; + params.auth_iv_buf = rte_crypto_op_ctod_offset(cop, + uint8_t *, sess->auth_iv_offset); + if (zsk_flag == K_F9) { + uint32_t length_in_bits, num_bytes; + uint8_t *src, direction = 0; + uint32_t counter_num_bytes; + + memcpy(iv_buf, rte_pktmbuf_mtod(cop->sym->m_src, + uint8_t *), 8); + /* + * This is kasumi f9, take direction from + * source buffer + */ + length_in_bits = cop->sym->auth.data.length; + num_bytes = (length_in_bits >> 3); + counter_num_bytes = num_bytes; + src = rte_pktmbuf_mtod(cop->sym->m_src, uint8_t *); + find_kasumif9_direction_and_length(src, + counter_num_bytes, + &length_in_bits, + &direction); + length_in_bits -= 64; + cop->sym->auth.data.offset += 64; + d_offs = cop->sym->auth.data.offset; + auth_range_off = d_offs / 8; + cop->sym->auth.data.length = length_in_bits; + + /* Store it at end of auth iv */ + iv_buf[8] = direction; + params.auth_iv_buf = iv_buf; + } + } + + d_lens = sym_op->auth.data.length; + + params.ctx_buf.vaddr = SESS_PRIV(sess); + params.ctx_buf.dma_addr = sess->ctx_dma_addr; + + if (auth_op == CPT_OP_AUTH_GENERATE) { + if (sym_op->auth.digest.data) { + /* + * Digest to be generated + * in separate buffer + */ + params.mac_buf.size = + sess->mac_len; + params.mac_buf.vaddr = + sym_op->auth.digest.data; + params.mac_buf.dma_addr = + sym_op->auth.digest.phys_addr; + } else { + uint32_t off = sym_op->auth.data.offset + + sym_op->auth.data.length; + int32_t dlen, space; + + m_dst = sym_op->m_dst ? + sym_op->m_dst : sym_op->m_src; + dlen = rte_pktmbuf_pkt_len(m_dst); + + space = off + mac_len - dlen; + if (space > 0) + if (!rte_pktmbuf_append(m_dst, space)) { + CPT_LOG_DP_ERR("Failed to extend " + "mbuf by %uB", space); + goto err; + } + + params.mac_buf.vaddr = + rte_pktmbuf_mtod_offset(m_dst, void *, off); + params.mac_buf.dma_addr = + rte_pktmbuf_mtophys_offset(m_dst, off); + params.mac_buf.size = mac_len; + } + } else { + /* Need space for storing generated mac */ + params.mac_buf.vaddr = (uint8_t *)mdata + space; + params.mac_buf.dma_addr = mphys + space; + params.mac_buf.size = mac_len; + space += RTE_ALIGN_CEIL(mac_len, 8); + op[2] = (uintptr_t)params.mac_buf.vaddr; + op[3] = mac_len; + } + + params.meta_buf.vaddr = (uint8_t *)mdata + space; + params.meta_buf.dma_addr = mphys + space; + params.meta_buf.size -= space; + + /* Out of place processing */ + params.src_iov = (void *)src; + + /*Store SG I/O in the api for reuse */ + if (prepare_iov_from_pkt(m_src, params.src_iov, auth_range_off)) { + CPT_LOG_DP_ERR("Prepare src iov failed"); + *op_ret = -1; + goto err; + } + + prep_req = cpt_fc_enc_hmac_prep(flags, d_offs, d_lens, + ¶ms, op, op_ret); + *mdata_ptr = mdata; + return prep_req; +err: + if (unlikely(!prep_req)) + free_op_meta(mdata, cpt_m_info->cptvf_meta_pool); + return NULL; +} + +#endif /*_CPT_UCODE_H_ */ |