From: Damian Nowak Date: Wed, 3 Jul 2019 11:15:53 +0000 (+0200) Subject: crypto/qat: extend support for digest-encrypted auth-cipher X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=40002f6c2a24;p=dpdk.git crypto/qat: extend support for digest-encrypted auth-cipher This patch adds condition to be met when using out-of-place auth-cipher operations. It checks if the digest location overlaps with the data to be encrypted or decrypted and if so, treats as a digest-encrypted case. Patch adds checking, if the digest is being encrypted or decrypted partially and extends PMD buffers accordingly. It also adds feature flag for QuickAssist Technology to emphasize it's support for digest appended auth-cipher operations. Signed-off-by: Damian Nowak Acked-by: Fiona Trahe --- diff --git a/doc/guides/cryptodevs/features/qat.ini b/doc/guides/cryptodevs/features/qat.ini index e8f9060905..0832e59240 100644 --- a/doc/guides/cryptodevs/features/qat.ini +++ b/doc/guides/cryptodevs/features/qat.ini @@ -12,6 +12,7 @@ OOP SGL In SGL Out = Y OOP SGL In LB Out = Y OOP LB In SGL Out = Y OOP LB In LB Out = Y +Digest encrypted = Y ; ; Supported crypto algorithms of the 'qat' crypto driver. diff --git a/doc/guides/rel_notes/release_19_08.rst b/doc/guides/rel_notes/release_19_08.rst index fd3b4b6313..53aead7b1e 100644 --- a/doc/guides/rel_notes/release_19_08.rst +++ b/doc/guides/rel_notes/release_19_08.rst @@ -139,6 +139,11 @@ New Features (Programmable Acceleration Card) N3000. See the :doc:`../bbdevs/fpga_lte_fec` BBDEV guide for more details on this new driver. +* **Updated the QuickAssist Technology (QAT) symmetric crypto PMD.** + + Added support for digest-encrypted cases where digest is appended + to the data. + * **Added Intel QuickData Technology PMD** The PMD for Intel\ |reg| QuickData Technology, part of diff --git a/drivers/crypto/qat/qat_sym.c b/drivers/crypto/qat/qat_sym.c index 7515a55d02..2dc0614928 100644 --- a/drivers/crypto/qat/qat_sym.c +++ b/drivers/crypto/qat/qat_sym.c @@ -156,8 +156,9 @@ qat_sym_build_request(void *in_op, uint8_t *out_msg, uint32_t auth_len = 0, auth_ofs = 0; uint32_t min_ofs = 0; uint64_t src_buf_start = 0, dst_buf_start = 0; + uint64_t digest_start = 0; uint8_t do_sgl = 0; - uint8_t wireless_auth = 0, in_place = 1; + uint8_t in_place = 1; struct rte_crypto_op *op = (struct rte_crypto_op *)in_op; struct qat_sym_op_cookie *cookie = (struct qat_sym_op_cookie *)op_cookie; @@ -270,7 +271,6 @@ qat_sym_build_request(void *in_op, uint8_t *out_msg, } auth_ofs = op->sym->auth.data.offset >> 3; auth_len = op->sym->auth.data.length >> 3; - wireless_auth = 1; auth_param->u1.aad_adr = rte_crypto_op_ctophys_offset(op, @@ -493,6 +493,53 @@ qat_sym_build_request(void *in_op, uint8_t *out_msg, (cipher_param->cipher_offset + cipher_param->cipher_length) : (auth_param->auth_off + auth_param->auth_len); + if (do_auth && do_cipher) { + if (do_sgl) { + uint32_t remaining_off = auth_param->auth_off + + auth_param->auth_len; + struct rte_mbuf *sgl_buf = + (in_place ? + op->sym->m_src : op->sym->m_dst); + while (remaining_off >= rte_pktmbuf_data_len( + sgl_buf)) { + remaining_off -= rte_pktmbuf_data_len( + sgl_buf); + sgl_buf = sgl_buf->next; + } + digest_start = (uint64_t)rte_pktmbuf_iova_offset( + sgl_buf, remaining_off); + } else { + digest_start = (in_place ? + src_buf_start : dst_buf_start) + + auth_param->auth_off + auth_param->auth_len; + } + /* Handle cases of auth-gen-then-cipher and + * cipher-decrypt-then-auth-verify with digest encrypted + */ + if ((auth_param->auth_off + auth_param->auth_len < + cipher_param->cipher_offset + + cipher_param->cipher_length) && + (op->sym->auth.digest.phys_addr == + digest_start)) { + /* Handle partial digest encryption */ + if (cipher_param->cipher_offset + + cipher_param->cipher_length < + auth_param->auth_off + + auth_param->auth_len + + ctx->digest_length) + qat_req->comn_mid.dst_length = + qat_req->comn_mid.src_length = + auth_param->auth_off + + auth_param->auth_len + + ctx->digest_length; + struct icp_qat_fw_comn_req_hdr *header = + &qat_req->comn_hdr; + ICP_QAT_FW_LA_DIGEST_IN_BUFFER_SET( + header->serv_specif_flags, + ICP_QAT_FW_LA_DIGEST_IN_BUFFER); + } + } + if (do_sgl) { ICP_QAT_FW_COMN_PTR_TYPE_SET(qat_req->comn_hdr.comn_req_flags, @@ -535,18 +582,6 @@ qat_sym_build_request(void *in_op, uint8_t *out_msg, } else { qat_req->comn_mid.src_data_addr = src_buf_start; qat_req->comn_mid.dest_data_addr = dst_buf_start; - /* handle case of auth-gen-then-cipher with digest encrypted */ - if (wireless_auth && in_place && - (op->sym->auth.digest.phys_addr == - src_buf_start + auth_ofs + auth_len) && - (auth_ofs + auth_len + ctx->digest_length <= - cipher_ofs + cipher_len)) { - struct icp_qat_fw_comn_req_hdr *header = - &qat_req->comn_hdr; - ICP_QAT_FW_LA_DIGEST_IN_BUFFER_SET( - header->serv_specif_flags, - ICP_QAT_FW_LA_DIGEST_IN_BUFFER); - } } #if RTE_LOG_DP_LEVEL >= RTE_LOG_DEBUG diff --git a/drivers/crypto/qat/qat_sym_pmd.c b/drivers/crypto/qat/qat_sym_pmd.c index af212704b4..71f21ceb25 100644 --- a/drivers/crypto/qat/qat_sym_pmd.c +++ b/drivers/crypto/qat/qat_sym_pmd.c @@ -278,7 +278,8 @@ qat_sym_dev_create(struct qat_pci_device *qat_pci_dev) RTE_CRYPTODEV_FF_OOP_SGL_IN_SGL_OUT | RTE_CRYPTODEV_FF_OOP_SGL_IN_LB_OUT | RTE_CRYPTODEV_FF_OOP_LB_IN_SGL_OUT | - RTE_CRYPTODEV_FF_OOP_LB_IN_LB_OUT; + RTE_CRYPTODEV_FF_OOP_LB_IN_LB_OUT | + RTE_CRYPTODEV_FF_DIGEST_ENCRYPTED; internals = cryptodev->data->dev_private; internals->qat_dev = qat_pci_dev;