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Signed-off-by: Ankur Dwivedi Signed-off-by: Murthy NSSR Signed-off-by: Nithin Dabilpuram Signed-off-by: Ragothaman Jayaraman Signed-off-by: Srisivasubramanian Srinivasan --- drivers/crypto/cpt/base/cpt_ops.c | 215 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 215 insertions(+) diff --git a/drivers/crypto/cpt/base/cpt_ops.c b/drivers/crypto/cpt/base/cpt_ops.c index 15c3413..eb25607 100644 --- a/drivers/crypto/cpt/base/cpt_ops.c +++ b/drivers/crypto/cpt/base/cpt_ops.c @@ -450,6 +450,218 @@ int32_t cpt_fc_get_ctx_len(void) return (uint32_t)i; } +static int +cpt_digest_gen_prep(uint32_t flags, + uint64_t d_offs, + uint64_t d_lens, + digest_params_t *params, + void *op, + void **prep_req) +{ + cpt_request_info_t *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; + + (void)d_offs; + 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(cpt_request_info_t)) + 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(cpt_request_info_t); + m_vaddr = (uint8_t *)m_vaddr + size; + m_dma += size; + m_size -= size; + + /* Initialising ctrl and opcode fields */ + + req->dma_mode = CTRL_DMA_MODE_SGIO; + req->se_req = SE_CORE_REQ; + + 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 = htobe16(((uint16_t)hash_type << 8)); + if (ctx->hmac) { + opcode.s.major = MAJOR_OP_HMAC | DMA_MODE; + vq_cmd_w0.s.param1 = htobe16(key_len); + vq_cmd_w0.s.dlen = htobe16((data_len + ROUNDUP8(key_len))); + } else { + opcode.s.major = MAJOR_OP_HASH | DMA_MODE; + vq_cmd_w0.s.param1 = 0; + vq_cmd_w0.s.dlen = htobe16(data_len); + } + + opcode.s.minor = 0; + + vq_cmd_w0.s.opcode = htobe16(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, + ctx->auth_key, 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) { + PMD_TX_LOG(DEBUG, "Insufficient dst IOV size, short by" + " %dB\n", 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] = htobe16(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) { + PMD_TX_LOG(DEBUG, "Insufficient dst IOV size, short by" + " %dB\n", size); + return ERR_BAD_INPUT_ARG; + } + } + + ((uint16_t *)in_buffer)[3] = htobe16(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 = htobe16(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 = htobe64(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; + +#ifdef CPTVF_STRICT_PARAM_CHECK + if (!(m_size >= 0)) + abort(); +#endif + *prep_req = req; + return 0; +} + static inline int __attribute__((always_inline)) cpt_enc_hmac_prep(uint32_t flags, uint64_t d_offs, @@ -2531,6 +2743,9 @@ static inline int __attribute__((always_inline)) } 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_offs, d_lens, + fc_params, op, &prep_req); } else { ret = ERR_EIO; }