--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2017 Marvell International Ltd.
+ * Copyright(c) 2017 Semihalf.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of the copyright holder nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <rte_common.h>
+#include <rte_hexdump.h>
+#include <rte_cryptodev.h>
+#include <rte_cryptodev_pmd.h>
+#include <rte_bus_vdev.h>
+#include <rte_malloc.h>
+#include <rte_cpuflags.h>
+
+#include "rte_mrvl_pmd_private.h"
+
+#define MRVL_MUSDK_DMA_MEMSIZE 41943040
+
+static uint8_t cryptodev_driver_id;
+
+/**
+ * Flag if particular crypto algorithm is supported by PMD/MUSDK.
+ *
+ * The idea is to have Not Supported value as default (0).
+ * This way we need only to define proper map sizes,
+ * non-initialized entries will be by default not supported.
+ */
+enum algo_supported {
+ ALGO_NOT_SUPPORTED = 0,
+ ALGO_SUPPORTED = 1,
+};
+
+/** Map elements for cipher mapping.*/
+struct cipher_params_mapping {
+ enum algo_supported supported; /**< On/Off switch */
+ enum sam_cipher_alg cipher_alg; /**< Cipher algorithm */
+ enum sam_cipher_mode cipher_mode; /**< Cipher mode */
+ unsigned int max_key_len; /**< Maximum key length (in bytes)*/
+}
+/* We want to squeeze in multiple maps into the cache line. */
+__rte_aligned(32);
+
+/** Map elements for auth mapping.*/
+struct auth_params_mapping {
+ enum algo_supported supported; /**< On/off switch */
+ enum sam_auth_alg auth_alg; /**< Auth algorithm */
+}
+/* We want to squeeze in multiple maps into the cache line. */
+__rte_aligned(32);
+
+/**
+ * Map of supported cipher algorithms.
+ */
+static const
+struct cipher_params_mapping cipher_map[RTE_CRYPTO_CIPHER_LIST_END] = {
+ [RTE_CRYPTO_CIPHER_3DES_CBC] = {
+ .supported = ALGO_SUPPORTED,
+ .cipher_alg = SAM_CIPHER_3DES,
+ .cipher_mode = SAM_CIPHER_CBC,
+ .max_key_len = BITS2BYTES(192) },
+ [RTE_CRYPTO_CIPHER_3DES_CTR] = {
+ .supported = ALGO_SUPPORTED,
+ .cipher_alg = SAM_CIPHER_3DES,
+ .cipher_mode = SAM_CIPHER_CTR,
+ .max_key_len = BITS2BYTES(192) },
+ [RTE_CRYPTO_CIPHER_3DES_ECB] = {
+ .supported = ALGO_SUPPORTED,
+ .cipher_alg = SAM_CIPHER_3DES,
+ .cipher_mode = SAM_CIPHER_ECB,
+ .max_key_len = BITS2BYTES(192) },
+ [RTE_CRYPTO_CIPHER_AES_CBC] = {
+ .supported = ALGO_SUPPORTED,
+ .cipher_alg = SAM_CIPHER_AES,
+ .cipher_mode = SAM_CIPHER_CBC,
+ .max_key_len = BITS2BYTES(256) },
+ [RTE_CRYPTO_CIPHER_AES_CTR] = {
+ .supported = ALGO_SUPPORTED,
+ .cipher_alg = SAM_CIPHER_AES,
+ .cipher_mode = SAM_CIPHER_CTR,
+ .max_key_len = BITS2BYTES(256) },
+};
+
+/**
+ * Map of supported auth algorithms.
+ */
+static const
+struct auth_params_mapping auth_map[RTE_CRYPTO_AUTH_LIST_END] = {
+ [RTE_CRYPTO_AUTH_MD5_HMAC] = {
+ .supported = ALGO_SUPPORTED,
+ .auth_alg = SAM_AUTH_HMAC_MD5 },
+ [RTE_CRYPTO_AUTH_MD5] = {
+ .supported = ALGO_SUPPORTED,
+ .auth_alg = SAM_AUTH_HASH_MD5 },
+ [RTE_CRYPTO_AUTH_SHA1_HMAC] = {
+ .supported = ALGO_SUPPORTED,
+ .auth_alg = SAM_AUTH_HMAC_SHA1 },
+ [RTE_CRYPTO_AUTH_SHA1] = {
+ .supported = ALGO_SUPPORTED,
+ .auth_alg = SAM_AUTH_HASH_SHA1 },
+ [RTE_CRYPTO_AUTH_SHA224] = {
+ .supported = ALGO_SUPPORTED,
+ .auth_alg = SAM_AUTH_HASH_SHA2_224 },
+ [RTE_CRYPTO_AUTH_SHA256_HMAC] = {
+ .supported = ALGO_SUPPORTED,
+ .auth_alg = SAM_AUTH_HMAC_SHA2_256 },
+ [RTE_CRYPTO_AUTH_SHA256] = {
+ .supported = ALGO_SUPPORTED,
+ .auth_alg = SAM_AUTH_HASH_SHA2_256 },
+ [RTE_CRYPTO_AUTH_SHA384_HMAC] = {
+ .supported = ALGO_SUPPORTED,
+ .auth_alg = SAM_AUTH_HMAC_SHA2_384 },
+ [RTE_CRYPTO_AUTH_SHA384] = {
+ .supported = ALGO_SUPPORTED,
+ .auth_alg = SAM_AUTH_HASH_SHA2_384 },
+ [RTE_CRYPTO_AUTH_SHA512_HMAC] = {
+ .supported = ALGO_SUPPORTED,
+ .auth_alg = SAM_AUTH_HMAC_SHA2_512 },
+ [RTE_CRYPTO_AUTH_SHA512] = {
+ .supported = ALGO_SUPPORTED,
+ .auth_alg = SAM_AUTH_HASH_SHA2_512 },
+ [RTE_CRYPTO_AUTH_AES_GMAC] = {
+ .supported = ALGO_SUPPORTED,
+ .auth_alg = SAM_AUTH_AES_GMAC },
+};
+
+/**
+ * Map of supported aead algorithms.
+ */
+static const
+struct cipher_params_mapping aead_map[RTE_CRYPTO_AEAD_LIST_END] = {
+ [RTE_CRYPTO_AEAD_AES_GCM] = {
+ .supported = ALGO_SUPPORTED,
+ .cipher_alg = SAM_CIPHER_AES,
+ .cipher_mode = SAM_CIPHER_GCM,
+ .max_key_len = BITS2BYTES(256) },
+};
+
+/*
+ *-----------------------------------------------------------------------------
+ * Forward declarations.
+ *-----------------------------------------------------------------------------
+ */
+static int cryptodev_mrvl_crypto_uninit(struct rte_vdev_device *vdev);
+
+/*
+ *-----------------------------------------------------------------------------
+ * Session Preparation.
+ *-----------------------------------------------------------------------------
+ */
+
+/**
+ * Get xform chain order.
+ *
+ * @param xform Pointer to configuration structure chain for crypto operations.
+ * @returns Order of crypto operations.
+ */
+static enum mrvl_crypto_chain_order
+mrvl_crypto_get_chain_order(const struct rte_crypto_sym_xform *xform)
+{
+ /* Currently, Marvell supports max 2 operations in chain */
+ if (xform->next != NULL && xform->next->next != NULL)
+ return MRVL_CRYPTO_CHAIN_NOT_SUPPORTED;
+
+ if (xform->next != NULL) {
+ if ((xform->type == RTE_CRYPTO_SYM_XFORM_AUTH) &&
+ (xform->next->type == RTE_CRYPTO_SYM_XFORM_CIPHER))
+ return MRVL_CRYPTO_CHAIN_AUTH_CIPHER;
+
+ if ((xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER) &&
+ (xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH))
+ return MRVL_CRYPTO_CHAIN_CIPHER_AUTH;
+ } else {
+ if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH)
+ return MRVL_CRYPTO_CHAIN_AUTH_ONLY;
+
+ if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER)
+ return MRVL_CRYPTO_CHAIN_CIPHER_ONLY;
+
+ if (xform->type == RTE_CRYPTO_SYM_XFORM_AEAD)
+ return MRVL_CRYPTO_CHAIN_COMBINED;
+ }
+ return MRVL_CRYPTO_CHAIN_NOT_SUPPORTED;
+}
+
+/**
+ * Set session parameters for cipher part.
+ *
+ * @param sess Crypto session pointer.
+ * @param cipher_xform Pointer to configuration structure for cipher operations.
+ * @returns 0 in case of success, negative value otherwise.
+ */
+static int
+mrvl_crypto_set_cipher_session_parameters(struct mrvl_crypto_session *sess,
+ const struct rte_crypto_sym_xform *cipher_xform)
+{
+ /* Make sure we've got proper struct */
+ if (cipher_xform->type != RTE_CRYPTO_SYM_XFORM_CIPHER) {
+ MRVL_CRYPTO_LOG_ERR("Wrong xform struct provided!");
+ return -EINVAL;
+ }
+
+ /* See if map data is present and valid */
+ if ((cipher_xform->cipher.algo > RTE_DIM(cipher_map)) ||
+ (cipher_map[cipher_xform->cipher.algo].supported
+ != ALGO_SUPPORTED)) {
+ MRVL_CRYPTO_LOG_ERR("Cipher algorithm not supported!");
+ return -EINVAL;
+ }
+
+ sess->cipher_iv_offset = cipher_xform->cipher.iv.offset;
+
+ sess->sam_sess_params.dir =
+ (cipher_xform->cipher.op == RTE_CRYPTO_CIPHER_OP_ENCRYPT) ?
+ SAM_DIR_ENCRYPT : SAM_DIR_DECRYPT;
+ sess->sam_sess_params.cipher_alg =
+ cipher_map[cipher_xform->cipher.algo].cipher_alg;
+ sess->sam_sess_params.cipher_mode =
+ cipher_map[cipher_xform->cipher.algo].cipher_mode;
+
+ /* Assume IV will be passed together with data. */
+ sess->sam_sess_params.cipher_iv = NULL;
+
+ /* Get max key length. */
+ if (cipher_xform->cipher.key.length >
+ cipher_map[cipher_xform->cipher.algo].max_key_len) {
+ MRVL_CRYPTO_LOG_ERR("Wrong key length!");
+ return -EINVAL;
+ }
+
+ sess->sam_sess_params.cipher_key_len = cipher_xform->cipher.key.length;
+ sess->sam_sess_params.cipher_key = cipher_xform->cipher.key.data;
+
+ return 0;
+}
+
+/**
+ * Set session parameters for authentication part.
+ *
+ * @param sess Crypto session pointer.
+ * @param auth_xform Pointer to configuration structure for auth operations.
+ * @returns 0 in case of success, negative value otherwise.
+ */
+static int
+mrvl_crypto_set_auth_session_parameters(struct mrvl_crypto_session *sess,
+ const struct rte_crypto_sym_xform *auth_xform)
+{
+ /* Make sure we've got proper struct */
+ if (auth_xform->type != RTE_CRYPTO_SYM_XFORM_AUTH) {
+ MRVL_CRYPTO_LOG_ERR("Wrong xform struct provided!");
+ return -EINVAL;
+ }
+
+ /* See if map data is present and valid */
+ if ((auth_xform->auth.algo > RTE_DIM(auth_map)) ||
+ (auth_map[auth_xform->auth.algo].supported != ALGO_SUPPORTED)) {
+ MRVL_CRYPTO_LOG_ERR("Auth algorithm not supported!");
+ return -EINVAL;
+ }
+
+ sess->sam_sess_params.dir =
+ (auth_xform->auth.op == RTE_CRYPTO_AUTH_OP_GENERATE) ?
+ SAM_DIR_ENCRYPT : SAM_DIR_DECRYPT;
+ sess->sam_sess_params.auth_alg =
+ auth_map[auth_xform->auth.algo].auth_alg;
+ sess->sam_sess_params.u.basic.auth_icv_len =
+ auth_xform->auth.digest_length;
+ /* auth_key must be NULL if auth algorithm does not use HMAC */
+ sess->sam_sess_params.auth_key = auth_xform->auth.key.length ?
+ auth_xform->auth.key.data : NULL;
+ sess->sam_sess_params.auth_key_len = auth_xform->auth.key.length;
+
+ return 0;
+}
+
+/**
+ * Set session parameters for aead part.
+ *
+ * @param sess Crypto session pointer.
+ * @param aead_xform Pointer to configuration structure for aead operations.
+ * @returns 0 in case of success, negative value otherwise.
+ */
+static int
+mrvl_crypto_set_aead_session_parameters(struct mrvl_crypto_session *sess,
+ const struct rte_crypto_sym_xform *aead_xform)
+{
+ /* Make sure we've got proper struct */
+ if (aead_xform->type != RTE_CRYPTO_SYM_XFORM_AEAD) {
+ MRVL_CRYPTO_LOG_ERR("Wrong xform struct provided!");
+ return -EINVAL;
+ }
+
+ /* See if map data is present and valid */
+ if ((aead_xform->aead.algo > RTE_DIM(aead_map)) ||
+ (aead_map[aead_xform->aead.algo].supported
+ != ALGO_SUPPORTED)) {
+ MRVL_CRYPTO_LOG_ERR("AEAD algorithm not supported!");
+ return -EINVAL;
+ }
+
+ sess->sam_sess_params.dir =
+ (aead_xform->aead.op == RTE_CRYPTO_AEAD_OP_ENCRYPT) ?
+ SAM_DIR_ENCRYPT : SAM_DIR_DECRYPT;
+ sess->sam_sess_params.cipher_alg =
+ aead_map[aead_xform->aead.algo].cipher_alg;
+ sess->sam_sess_params.cipher_mode =
+ aead_map[aead_xform->aead.algo].cipher_mode;
+
+ /* Assume IV will be passed together with data. */
+ sess->sam_sess_params.cipher_iv = NULL;
+
+ /* Get max key length. */
+ if (aead_xform->aead.key.length >
+ aead_map[aead_xform->aead.algo].max_key_len) {
+ MRVL_CRYPTO_LOG_ERR("Wrong key length!");
+ return -EINVAL;
+ }
+
+ sess->sam_sess_params.cipher_key = aead_xform->aead.key.data;
+ sess->sam_sess_params.cipher_key_len = aead_xform->aead.key.length;
+
+ if (sess->sam_sess_params.cipher_mode == SAM_CIPHER_GCM)
+ sess->sam_sess_params.auth_alg = SAM_AUTH_AES_GCM;
+
+ sess->sam_sess_params.u.basic.auth_icv_len =
+ aead_xform->aead.digest_length;
+
+ sess->sam_sess_params.u.basic.auth_aad_len =
+ aead_xform->aead.aad_length;
+
+ return 0;
+}
+
+/**
+ * Parse crypto transform chain and setup session parameters.
+ *
+ * @param dev Pointer to crypto device
+ * @param sess Poiner to crypto session
+ * @param xform Pointer to configuration structure chain for crypto operations.
+ * @returns 0 in case of success, negative value otherwise.
+ */
+int
+mrvl_crypto_set_session_parameters(struct mrvl_crypto_session *sess,
+ const struct rte_crypto_sym_xform *xform)
+{
+ const struct rte_crypto_sym_xform *cipher_xform = NULL;
+ const struct rte_crypto_sym_xform *auth_xform = NULL;
+ const struct rte_crypto_sym_xform *aead_xform = NULL;
+
+ /* Filter out spurious/broken requests */
+ if (xform == NULL)
+ return -EINVAL;
+
+ sess->chain_order = mrvl_crypto_get_chain_order(xform);
+ switch (sess->chain_order) {
+ case MRVL_CRYPTO_CHAIN_CIPHER_AUTH:
+ cipher_xform = xform;
+ auth_xform = xform->next;
+ break;
+ case MRVL_CRYPTO_CHAIN_AUTH_CIPHER:
+ auth_xform = xform;
+ cipher_xform = xform->next;
+ break;
+ case MRVL_CRYPTO_CHAIN_CIPHER_ONLY:
+ cipher_xform = xform;
+ break;
+ case MRVL_CRYPTO_CHAIN_AUTH_ONLY:
+ auth_xform = xform;
+ break;
+ case MRVL_CRYPTO_CHAIN_COMBINED:
+ aead_xform = xform;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if ((cipher_xform != NULL) &&
+ (mrvl_crypto_set_cipher_session_parameters(
+ sess, cipher_xform) < 0)) {
+ MRVL_CRYPTO_LOG_ERR("Invalid/unsupported cipher parameters");
+ return -EINVAL;
+ }
+
+ if ((auth_xform != NULL) &&
+ (mrvl_crypto_set_auth_session_parameters(
+ sess, auth_xform) < 0)) {
+ MRVL_CRYPTO_LOG_ERR("Invalid/unsupported auth parameters");
+ return -EINVAL;
+ }
+
+ if ((aead_xform != NULL) &&
+ (mrvl_crypto_set_aead_session_parameters(
+ sess, aead_xform) < 0)) {
+ MRVL_CRYPTO_LOG_ERR("Invalid/unsupported aead parameters");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ * Process Operations
+ *-----------------------------------------------------------------------------
+ */
+
+/**
+ * Prepare a single request.
+ *
+ * This function basically translates DPDK crypto request into one
+ * understandable by MUDSK's SAM. If this is a first request in a session,
+ * it starts the session.
+ *
+ * @param request Pointer to pre-allocated && reset request buffer [Out].
+ * @param src_bd Pointer to pre-allocated source descriptor [Out].
+ * @param dst_bd Pointer to pre-allocated destination descriptor [Out].
+ * @param op Pointer to DPDK crypto operation struct [In].
+ */
+static inline int
+mrvl_request_prepare(struct sam_cio_op_params *request,
+ struct sam_buf_info *src_bd,
+ struct sam_buf_info *dst_bd,
+ struct rte_crypto_op *op)
+{
+ struct mrvl_crypto_session *sess;
+ struct rte_mbuf *dst_mbuf;
+ uint8_t *digest;
+
+ if (unlikely(op->sess_type == RTE_CRYPTO_OP_SESSIONLESS)) {
+ MRVL_CRYPTO_LOG_ERR("MRVL CRYPTO PMD only supports session "
+ "oriented requests, op (%p) is sessionless.",
+ op);
+ return -EINVAL;
+ }
+
+ sess = (struct mrvl_crypto_session *)get_session_private_data(
+ op->sym->session, cryptodev_driver_id);
+ if (unlikely(sess == NULL)) {
+ MRVL_CRYPTO_LOG_ERR("Session was not created for this device");
+ return -EINVAL;
+ }
+
+ /*
+ * If application delivered us null dst buffer, it means it expects
+ * us to deliver the result in src buffer.
+ */
+ dst_mbuf = op->sym->m_dst ? op->sym->m_dst : op->sym->m_src;
+
+ request->sa = sess->sam_sess;
+ request->cookie = op;
+
+ /* Single buffers only, sorry. */
+ request->num_bufs = 1;
+ request->src = src_bd;
+ src_bd->vaddr = rte_pktmbuf_mtod(op->sym->m_src, void *);
+ src_bd->paddr = rte_pktmbuf_iova(op->sym->m_src);
+ src_bd->len = rte_pktmbuf_data_len(op->sym->m_src);
+
+ /* Empty source. */
+ if (rte_pktmbuf_data_len(op->sym->m_src) == 0) {
+ /* EIP does not support 0 length buffers. */
+ MRVL_CRYPTO_LOG_ERR("Buffer length == 0 not supported!");
+ return -1;
+ }
+
+ /* Empty destination. */
+ if (rte_pktmbuf_data_len(dst_mbuf) == 0) {
+ /* Make dst buffer fit at least source data. */
+ if (rte_pktmbuf_append(dst_mbuf,
+ rte_pktmbuf_data_len(op->sym->m_src)) == NULL) {
+ MRVL_CRYPTO_LOG_ERR("Unable to set big enough dst buffer!");
+ return -1;
+ }
+ }
+
+ request->dst = dst_bd;
+ dst_bd->vaddr = rte_pktmbuf_mtod(dst_mbuf, void *);
+ dst_bd->paddr = rte_pktmbuf_iova(dst_mbuf);
+
+ /*
+ * We can use all available space in dst_mbuf,
+ * not only what's used currently.
+ */
+ dst_bd->len = dst_mbuf->buf_len - rte_pktmbuf_headroom(dst_mbuf);
+
+ if (sess->chain_order == MRVL_CRYPTO_CHAIN_COMBINED) {
+ request->cipher_len = op->sym->aead.data.length;
+ request->cipher_offset = op->sym->aead.data.offset;
+ request->cipher_iv = rte_crypto_op_ctod_offset(op, uint8_t *,
+ sess->cipher_iv_offset);
+
+ request->auth_aad = op->sym->aead.aad.data;
+ request->auth_offset = request->cipher_offset;
+ request->auth_len = request->cipher_len;
+ } else {
+ request->cipher_len = op->sym->cipher.data.length;
+ request->cipher_offset = op->sym->cipher.data.offset;
+ request->cipher_iv = rte_crypto_op_ctod_offset(op, uint8_t *,
+ sess->cipher_iv_offset);
+
+ request->auth_offset = op->sym->auth.data.offset;
+ request->auth_len = op->sym->auth.data.length;
+ }
+
+ digest = sess->chain_order == MRVL_CRYPTO_CHAIN_COMBINED ?
+ op->sym->aead.digest.data : op->sym->auth.digest.data;
+ if (digest == NULL) {
+ /* No auth - no worry. */
+ return 0;
+ }
+
+ request->auth_icv_offset = request->auth_offset + request->auth_len;
+
+ /*
+ * EIP supports only scenarios where ICV(digest buffer) is placed at
+ * auth_icv_offset. Any other placement means risking errors.
+ */
+ if (sess->sam_sess_params.dir == SAM_DIR_ENCRYPT) {
+ /*
+ * This should be the most common case anyway,
+ * EIP will overwrite DST buffer at auth_icv_offset.
+ */
+ if (rte_pktmbuf_mtod_offset(
+ dst_mbuf, uint8_t *,
+ request->auth_icv_offset) == digest) {
+ return 0;
+ }
+ } else {/* sess->sam_sess_params.dir == SAM_DIR_DECRYPT */
+ /*
+ * EIP will look for digest at auth_icv_offset
+ * offset in SRC buffer.
+ */
+ if (rte_pktmbuf_mtod_offset(
+ op->sym->m_src, uint8_t *,
+ request->auth_icv_offset) == digest) {
+ return 0;
+ }
+ }
+
+ /*
+ * If we landed here it means that digest pointer is
+ * at different than expected place.
+ */
+ return -1;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ * PMD Framework handlers
+ *-----------------------------------------------------------------------------
+ */
+
+/**
+ * Enqueue burst.
+ *
+ * @param queue_pair Pointer to queue pair.
+ * @param ops Pointer to ops requests array.
+ * @param nb_ops Number of elements in ops requests array.
+ * @returns Number of elements consumed from ops.
+ */
+static uint16_t
+mrvl_crypto_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops,
+ uint16_t nb_ops)
+{
+ uint16_t iter_ops = 0;
+ uint16_t to_enq = 0;
+ uint16_t consumed = 0;
+ int ret;
+ struct sam_cio_op_params requests[nb_ops];
+ /*
+ * DPDK uses single fragment buffers, so we can KISS descriptors.
+ * SAM does not store bd pointers, so on-stack scope will be enough.
+ */
+ struct sam_buf_info src_bd[nb_ops];
+ struct sam_buf_info dst_bd[nb_ops];
+ struct mrvl_crypto_qp *qp = (struct mrvl_crypto_qp *)queue_pair;
+
+ if (nb_ops == 0)
+ return 0;
+
+ /* Prepare the burst. */
+ memset(&requests, 0, sizeof(requests));
+
+ /* Iterate through */
+ for (; iter_ops < nb_ops; ++iter_ops) {
+ if (mrvl_request_prepare(&requests[iter_ops],
+ &src_bd[iter_ops],
+ &dst_bd[iter_ops],
+ ops[iter_ops]) < 0) {
+ MRVL_CRYPTO_LOG_ERR(
+ "Error while parameters preparation!");
+ qp->stats.enqueue_err_count++;
+ ops[iter_ops]->status = RTE_CRYPTO_OP_STATUS_ERROR;
+
+ /*
+ * Number of handled ops is increased
+ * (even if the result of handling is error).
+ */
+ ++consumed;
+ break;
+ }
+
+ ops[iter_ops]->status =
+ RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
+
+ /* Increase the number of ops to enqueue. */
+ ++to_enq;
+ } /* for (; iter_ops < nb_ops;... */
+
+ if (to_enq > 0) {
+ /* Send the burst */
+ ret = sam_cio_enq(qp->cio, requests, &to_enq);
+ consumed += to_enq;
+ if (ret < 0) {
+ /*
+ * Trust SAM that in this case returned value will be at
+ * some point correct (now it is returned unmodified).
+ */
+ qp->stats.enqueue_err_count += to_enq;
+ for (iter_ops = 0; iter_ops < to_enq; ++iter_ops)
+ ops[iter_ops]->status =
+ RTE_CRYPTO_OP_STATUS_ERROR;
+ }
+ }
+
+ qp->stats.enqueued_count += to_enq;
+ return consumed;
+}
+
+/**
+ * Dequeue burst.
+ *
+ * @param queue_pair Pointer to queue pair.
+ * @param ops Pointer to ops requests array.
+ * @param nb_ops Number of elements in ops requests array.
+ * @returns Number of elements dequeued.
+ */
+static uint16_t
+mrvl_crypto_pmd_dequeue_burst(void *queue_pair,
+ struct rte_crypto_op **ops,
+ uint16_t nb_ops)
+{
+ int ret;
+ struct mrvl_crypto_qp *qp = queue_pair;
+ struct sam_cio *cio = qp->cio;
+ struct sam_cio_op_result results[nb_ops];
+ uint16_t i;
+
+ ret = sam_cio_deq(cio, results, &nb_ops);
+ if (ret < 0) {
+ /* Count all dequeued as error. */
+ qp->stats.dequeue_err_count += nb_ops;
+
+ /* But act as they were dequeued anyway*/
+ qp->stats.dequeued_count += nb_ops;
+
+ return 0;
+ }
+
+ /* Unpack and check results. */
+ for (i = 0; i < nb_ops; ++i) {
+ ops[i] = results[i].cookie;
+
+ switch (results[i].status) {
+ case SAM_CIO_OK:
+ ops[i]->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
+ break;
+ case SAM_CIO_ERR_ICV:
+ MRVL_CRYPTO_LOG_DBG("CIO returned SAM_CIO_ERR_ICV.");
+ ops[i]->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
+ break;
+ default:
+ MRVL_CRYPTO_LOG_DBG(
+ "CIO returned Error: %d", results[i].status);
+ ops[i]->status = RTE_CRYPTO_OP_STATUS_ERROR;
+ break;
+ }
+ }
+
+ qp->stats.dequeued_count += nb_ops;
+ return nb_ops;
+}
+
+/**
+ * Create a new crypto device.
+ *
+ * @param name Driver name.
+ * @param vdev Pointer to device structure.
+ * @param init_params Pointer to initialization parameters.
+ * @returns 0 in case of success, negative value otherwise.
+ */
+static int
+cryptodev_mrvl_crypto_create(const char *name,
+ struct rte_vdev_device *vdev,
+ struct rte_cryptodev_pmd_init_params *init_params)
+{
+ struct rte_cryptodev *dev;
+ struct mrvl_crypto_private *internals;
+ struct sam_init_params sam_params;
+ int ret;
+
+ dev = rte_cryptodev_pmd_create(name, &vdev->device, init_params);
+ if (dev == NULL) {
+ MRVL_CRYPTO_LOG_ERR("failed to create cryptodev vdev");
+ goto init_error;
+ }
+
+ dev->driver_id = cryptodev_driver_id;
+ dev->dev_ops = rte_mrvl_crypto_pmd_ops;
+
+ /* Register rx/tx burst functions for data path. */
+ dev->enqueue_burst = mrvl_crypto_pmd_enqueue_burst;
+ dev->dequeue_burst = mrvl_crypto_pmd_dequeue_burst;
+
+ dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
+ RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
+ RTE_CRYPTODEV_FF_HW_ACCELERATED;
+
+ /* Set vector instructions mode supported */
+ internals = dev->data->dev_private;
+
+ internals->max_nb_qpairs = init_params->max_nb_queue_pairs;
+ internals->max_nb_sessions = init_params->max_nb_sessions;
+
+ /*
+ * ret == -EEXIST is correct, it means DMA
+ * has been already initialized.
+ */
+ ret = mv_sys_dma_mem_init(MRVL_MUSDK_DMA_MEMSIZE);
+ if (ret < 0) {
+ if (ret != -EEXIST)
+ return ret;
+
+ MRVL_CRYPTO_LOG_INFO(
+ "DMA memory has been already initialized by a different driver.");
+ }
+
+ sam_params.max_num_sessions = internals->max_nb_sessions;
+
+ return sam_init(&sam_params);
+
+init_error:
+ MRVL_CRYPTO_LOG_ERR(
+ "driver %s: %s failed", init_params->name, __func__);
+
+ cryptodev_mrvl_crypto_uninit(vdev);
+ return -EFAULT;
+}
+
+/**
+ * Initialize the crypto device.
+ *
+ * @param vdev Pointer to device structure.
+ * @returns 0 in case of success, negative value otherwise.
+ */
+static int
+cryptodev_mrvl_crypto_init(struct rte_vdev_device *vdev)
+{
+ struct rte_cryptodev_pmd_init_params init_params = { };
+ const char *name, *args;
+ int ret;
+
+ name = rte_vdev_device_name(vdev);
+ if (name == NULL)
+ return -EINVAL;
+ args = rte_vdev_device_args(vdev);
+
+ init_params.private_data_size = sizeof(struct mrvl_crypto_private);
+ init_params.max_nb_queue_pairs = sam_get_num_inst() * SAM_HW_RING_NUM;
+ init_params.max_nb_sessions =
+ RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS;
+ init_params.socket_id = rte_socket_id();
+
+ ret = rte_cryptodev_pmd_parse_input_args(&init_params, args);
+ if (ret) {
+ RTE_LOG(ERR, PMD,
+ "Failed to parse initialisation arguments[%s]\n",
+ args);
+ return -EINVAL;
+ }
+
+ return cryptodev_mrvl_crypto_create(name, vdev, &init_params);
+}
+
+/**
+ * Uninitialize the crypto device
+ *
+ * @param vdev Pointer to device structure.
+ * @returns 0 in case of success, negative value otherwise.
+ */
+static int
+cryptodev_mrvl_crypto_uninit(struct rte_vdev_device *vdev)
+{
+ struct rte_cryptodev *cryptodev;
+ const char *name = rte_vdev_device_name(vdev);
+
+ if (name == NULL)
+ return -EINVAL;
+
+ RTE_LOG(INFO, PMD,
+ "Closing Marvell crypto device %s on numa socket %u\n",
+ name, rte_socket_id());
+
+ sam_deinit();
+
+ cryptodev = rte_cryptodev_pmd_get_named_dev(name);
+ if (cryptodev == NULL)
+ return -ENODEV;
+
+ return rte_cryptodev_pmd_destroy(cryptodev);
+}
+
+/**
+ * Basic driver handlers for use in the constructor.
+ */
+static struct rte_vdev_driver cryptodev_mrvl_pmd_drv = {
+ .probe = cryptodev_mrvl_crypto_init,
+ .remove = cryptodev_mrvl_crypto_uninit
+};
+
+static struct cryptodev_driver mrvl_crypto_drv;
+
+/* Register the driver in constructor. */
+RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_MRVL_PMD, cryptodev_mrvl_pmd_drv);
+RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_MRVL_PMD,
+ "max_nb_queue_pairs=<int> "
+ "max_nb_sessions=<int> "
+ "socket_id=<int>");
+RTE_PMD_REGISTER_CRYPTO_DRIVER(mrvl_crypto_drv, cryptodev_mrvl_pmd_drv,
+ cryptodev_driver_id);
Code Review / deb_dpdk.git / blobdiff