From: Tejasree Kondoj Date: Fri, 25 Jun 2021 05:56:28 +0000 (+0530) Subject: crypto/cnxk: add KASUMI decryption X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=546dff20a034bf75478c2a46904ffc06c0aab918;p=dpdk.git crypto/cnxk: add KASUMI decryption Add KASUMI decrypt support. Signed-off-by: Ankur Dwivedi Signed-off-by: Anoob Joseph Signed-off-by: Archana Muniganti Signed-off-by: Tejasree Kondoj Acked-by: Akhil Goyal --- diff --git a/doc/guides/cryptodevs/features/cn10k.ini b/doc/guides/cryptodevs/features/cn10k.ini index a90421a2fb..c6115350fa 100644 --- a/doc/guides/cryptodevs/features/cn10k.ini +++ b/doc/guides/cryptodevs/features/cn10k.ini @@ -30,6 +30,7 @@ AES CTR (256) = Y AES XTS (128) = Y AES XTS (256) = Y DES CBC = Y +KASUMI F8 = Y SNOW3G UEA2 = Y ZUC EEA3 = Y diff --git a/doc/guides/cryptodevs/features/cn9k.ini b/doc/guides/cryptodevs/features/cn9k.ini index fb0c09bd8b..e833dc0645 100644 --- a/doc/guides/cryptodevs/features/cn9k.ini +++ b/doc/guides/cryptodevs/features/cn9k.ini @@ -30,6 +30,7 @@ AES CTR (256) = Y AES XTS (128) = Y AES XTS (256) = Y DES CBC = Y +KASUMI F8 = Y SNOW3G UEA2 = Y ZUC EEA3 = Y diff --git a/drivers/crypto/cnxk/cnxk_se.h b/drivers/crypto/cnxk/cnxk_se.h index 34907c6450..b1337cc618 100644 --- a/drivers/crypto/cnxk/cnxk_se.h +++ b/drivers/crypto/cnxk/cnxk_se.h @@ -1474,6 +1474,137 @@ cpt_kasumi_enc_prep(uint32_t req_flags, uint64_t d_offs, uint64_t d_lens, return 0; } +static __rte_always_inline int +cpt_kasumi_dec_prep(uint64_t d_offs, uint64_t d_lens, + struct roc_se_fc_params *params, struct cpt_inst_s *inst) +{ + void *m_vaddr = params->meta_buf.vaddr; + uint32_t size; + int32_t inputlen = 0, outputlen; + struct roc_se_ctx *se_ctx; + uint8_t i = 0, iv_len = 8; + uint32_t encr_offset; + uint32_t encr_data_len; + int flags; + uint8_t dir = 0; + uint64_t *offset_vaddr; + union cpt_inst_w4 cpt_inst_w4; + uint8_t *in_buffer; + uint32_t g_size_bytes, s_size_bytes; + struct roc_se_sglist_comp *gather_comp; + struct roc_se_sglist_comp *scatter_comp; + + encr_offset = ROC_SE_ENCR_OFFSET(d_offs) / 8; + encr_data_len = ROC_SE_ENCR_DLEN(d_lens); + + se_ctx = params->ctx_buf.vaddr; + flags = se_ctx->zsk_flags; + + cpt_inst_w4.u64 = 0; + cpt_inst_w4.s.opcode_major = ROC_SE_MAJOR_OP_KASUMI | ROC_SE_DMA_MODE; + + /* indicates ECB/CBC, direction, ctx from cptr, iv from dptr */ + cpt_inst_w4.s.opcode_minor = ((1 << 6) | (se_ctx->k_ecb << 5) | + (dir << 4) | (0 << 3) | (flags & 0x7)); + + /* + * GP op header, lengths are expected in bits. + */ + cpt_inst_w4.s.param1 = encr_data_len; + + /* 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; + + m_vaddr = (uint8_t *)m_vaddr + ROC_SE_OFF_CTRL_LEN + iv_len; + + /* DPTR has SG list */ + in_buffer = m_vaddr; + + ((uint16_t *)in_buffer)[0] = 0; + ((uint16_t *)in_buffer)[1] = 0; + + /* TODO Add error check if space will be sufficient */ + gather_comp = (struct roc_se_sglist_comp *)((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); + if (unlikely((encr_offset >> 16))) { + plt_dp_err("Offset not supported"); + plt_dp_err("enc_offset: %d", encr_offset); + return -1; + } + + i = fill_sg_comp(gather_comp, i, (uint64_t)offset_vaddr, + ROC_SE_OFF_CTRL_LEN + iv_len); + + /* IV */ + memcpy((uint8_t *)offset_vaddr + ROC_SE_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 (unlikely(size)) { + plt_dp_err("Insufficient buffer space," + " size %d needed", + size); + return -1; + } + } + ((uint16_t *)in_buffer)[2] = rte_cpu_to_be_16(i); + g_size_bytes = ((i + 3) / 4) * sizeof(struct roc_se_sglist_comp); + + /* + * Output Scatter List + */ + + i = 0; + scatter_comp = (struct roc_se_sglist_comp *)((uint8_t *)gather_comp + + g_size_bytes); + + /* IV */ + i = fill_sg_comp(scatter_comp, i, + (uint64_t)offset_vaddr + ROC_SE_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 (unlikely(size)) { + plt_dp_err("Insufficient buffer space," + " size %d needed", + size); + return -1; + } + } + ((uint16_t *)in_buffer)[3] = rte_cpu_to_be_16(i); + s_size_bytes = ((i + 3) / 4) * sizeof(struct roc_se_sglist_comp); + + size = g_size_bytes + s_size_bytes + ROC_SE_SG_LIST_HDR_SIZE; + + /* This is DPTR len in case of SG mode */ + cpt_inst_w4.s.dlen = size; + + inst->dptr = (uint64_t)in_buffer; + inst->w4.u64 = cpt_inst_w4.u64; + + return 0; +} + static __rte_always_inline int cpt_fc_dec_hmac_prep(uint32_t flags, uint64_t d_offs, uint64_t d_lens, struct roc_se_fc_params *fc_params, @@ -1490,6 +1621,8 @@ cpt_fc_dec_hmac_prep(uint32_t flags, uint64_t d_offs, uint64_t d_lens, } else if (fc_type == ROC_SE_PDCP) { ret = cpt_zuc_snow3g_dec_prep(flags, d_offs, d_lens, fc_params, inst); + } else if (fc_type == ROC_SE_KASUMI) { + ret = cpt_kasumi_dec_prep(d_offs, d_lens, fc_params, inst); } return ret; }