New upstream version 18.08upstream/18.08

Change-Id: I32fdf5e5016556d9c0a6d88ddaf1fc468961790a
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>

1 files changed, 331 insertions, 0 deletions

diff --git a/drivers/crypto/qat/qat_sym_pmd.c b/drivers/crypto/qat/qat_sym_pmd.c
new file mode 100644
index 00000000..96f442e8
--- /dev/null
+++ b/drivers/crypto/qat/qat_sym_pmd.c
@@ -0,0 +1,331 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2015-2018 Intel Corporation
+ */
+
+#include <rte_bus_pci.h>
+#include <rte_common.h>
+#include <rte_dev.h>
+#include <rte_malloc.h>
+#include <rte_pci.h>
+#include <rte_cryptodev_pmd.h>
+
+#include "qat_logs.h"
+#include "qat_sym.h"
+#include "qat_sym_session.h"
+#include "qat_sym_pmd.h"
+
+uint8_t cryptodev_qat_driver_id;
+
+static const struct rte_cryptodev_capabilities qat_gen1_sym_capabilities[] = {
+	QAT_BASE_GEN1_SYM_CAPABILITIES,
+	RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
+};
+
+static const struct rte_cryptodev_capabilities qat_gen2_sym_capabilities[] = {
+	QAT_BASE_GEN1_SYM_CAPABILITIES,
+	QAT_EXTRA_GEN2_SYM_CAPABILITIES,
+	RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
+};
+
+static int qat_sym_qp_release(struct rte_cryptodev *dev,
+	uint16_t queue_pair_id);
+
+static int qat_sym_dev_config(__rte_unused struct rte_cryptodev *dev,
+		__rte_unused struct rte_cryptodev_config *config)
+{
+	return 0;
+}
+
+static int qat_sym_dev_start(__rte_unused struct rte_cryptodev *dev)
+{
+	return 0;
+}
+
+static void qat_sym_dev_stop(__rte_unused struct rte_cryptodev *dev)
+{
+	return;
+}
+
+static int qat_sym_dev_close(struct rte_cryptodev *dev)
+{
+	int i, ret;
+
+	for (i = 0; i < dev->data->nb_queue_pairs; i++) {
+		ret = qat_sym_qp_release(dev, i);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+
+static void qat_sym_dev_info_get(struct rte_cryptodev *dev,
+			struct rte_cryptodev_info *info)
+{
+	struct qat_sym_dev_private *internals = dev->data->dev_private;
+	const struct qat_qp_hw_data *sym_hw_qps =
+		qat_gen_config[internals->qat_dev->qat_dev_gen]
+			      .qp_hw_data[QAT_SERVICE_SYMMETRIC];
+
+	if (info != NULL) {
+		info->max_nb_queue_pairs =
+			qat_qps_per_service(sym_hw_qps, QAT_SERVICE_SYMMETRIC);
+		info->feature_flags = dev->feature_flags;
+		info->capabilities = internals->qat_dev_capabilities;
+		info->driver_id = cryptodev_qat_driver_id;
+		/* No limit of number of sessions */
+		info->sym.max_nb_sessions = 0;
+	}
+}
+
+static void qat_sym_stats_get(struct rte_cryptodev *dev,
+		struct rte_cryptodev_stats *stats)
+{
+	struct qat_common_stats qat_stats = {0};
+	struct qat_sym_dev_private *qat_priv;
+
+	if (stats == NULL || dev == NULL) {
+		QAT_LOG(ERR, "invalid ptr: stats %p, dev %p", stats, dev);
+		return;
+	}
+	qat_priv = dev->data->dev_private;
+
+	qat_stats_get(qat_priv->qat_dev, &qat_stats, QAT_SERVICE_SYMMETRIC);
+	stats->enqueued_count = qat_stats.enqueued_count;
+	stats->dequeued_count = qat_stats.dequeued_count;
+	stats->enqueue_err_count = qat_stats.enqueue_err_count;
+	stats->dequeue_err_count = qat_stats.dequeue_err_count;
+}
+
+static void qat_sym_stats_reset(struct rte_cryptodev *dev)
+{
+	struct qat_sym_dev_private *qat_priv;
+
+	if (dev == NULL) {
+		QAT_LOG(ERR, "invalid cryptodev ptr %p", dev);
+		return;
+	}
+	qat_priv = dev->data->dev_private;
+
+	qat_stats_reset(qat_priv->qat_dev, QAT_SERVICE_SYMMETRIC);
+
+}
+
+static int qat_sym_qp_release(struct rte_cryptodev *dev, uint16_t queue_pair_id)
+{
+	struct qat_sym_dev_private *qat_private = dev->data->dev_private;
+
+	QAT_LOG(DEBUG, "Release sym qp %u on device %d",
+				queue_pair_id, dev->data->dev_id);
+
+	qat_private->qat_dev->qps_in_use[QAT_SERVICE_SYMMETRIC][queue_pair_id]
+						= NULL;
+
+	return qat_qp_release((struct qat_qp **)
+			&(dev->data->queue_pairs[queue_pair_id]));
+}
+
+static int qat_sym_qp_setup(struct rte_cryptodev *dev, uint16_t qp_id,
+	const struct rte_cryptodev_qp_conf *qp_conf,
+	int socket_id, struct rte_mempool *session_pool __rte_unused)
+{
+	struct qat_qp *qp;
+	int ret = 0;
+	uint32_t i;
+	struct qat_qp_config qat_qp_conf;
+
+	struct qat_qp **qp_addr =
+			(struct qat_qp **)&(dev->data->queue_pairs[qp_id]);
+	struct qat_sym_dev_private *qat_private = dev->data->dev_private;
+	const struct qat_qp_hw_data *sym_hw_qps =
+			qat_gen_config[qat_private->qat_dev->qat_dev_gen]
+				      .qp_hw_data[QAT_SERVICE_SYMMETRIC];
+	const struct qat_qp_hw_data *qp_hw_data = sym_hw_qps + qp_id;
+
+	/* If qp is already in use free ring memory and qp metadata. */
+	if (*qp_addr != NULL) {
+		ret = qat_sym_qp_release(dev, qp_id);
+		if (ret < 0)
+			return ret;
+	}
+	if (qp_id >= qat_qps_per_service(sym_hw_qps, QAT_SERVICE_SYMMETRIC)) {
+		QAT_LOG(ERR, "qp_id %u invalid for this device", qp_id);
+		return -EINVAL;
+	}
+
+	qat_qp_conf.hw = qp_hw_data;
+	qat_qp_conf.build_request = qat_sym_build_request;
+	qat_qp_conf.cookie_size = sizeof(struct qat_sym_op_cookie);
+	qat_qp_conf.nb_descriptors = qp_conf->nb_descriptors;
+	qat_qp_conf.socket_id = socket_id;
+	qat_qp_conf.service_str = "sym";
+
+	ret = qat_qp_setup(qat_private->qat_dev, qp_addr, qp_id, &qat_qp_conf);
+	if (ret != 0)
+		return ret;
+
+	/* store a link to the qp in the qat_pci_device */
+	qat_private->qat_dev->qps_in_use[QAT_SERVICE_SYMMETRIC][qp_id]
+							= *qp_addr;
+
+	qp = (struct qat_qp *)*qp_addr;
+
+	for (i = 0; i < qp->nb_descriptors; i++) {
+
+		struct qat_sym_op_cookie *cookie =
+				qp->op_cookies[i];
+
+		cookie->qat_sgl_src_phys_addr =
+				rte_mempool_virt2iova(cookie) +
+				offsetof(struct qat_sym_op_cookie,
+				qat_sgl_src);
+
+		cookie->qat_sgl_dst_phys_addr =
+				rte_mempool_virt2iova(cookie) +
+				offsetof(struct qat_sym_op_cookie,
+				qat_sgl_dst);
+	}
+
+	return ret;
+}
+
+static struct rte_cryptodev_ops crypto_qat_ops = {
+
+		/* Device related operations */
+		.dev_configure		= qat_sym_dev_config,
+		.dev_start		= qat_sym_dev_start,
+		.dev_stop		= qat_sym_dev_stop,
+		.dev_close		= qat_sym_dev_close,
+		.dev_infos_get		= qat_sym_dev_info_get,
+
+		.stats_get		= qat_sym_stats_get,
+		.stats_reset		= qat_sym_stats_reset,
+		.queue_pair_setup	= qat_sym_qp_setup,
+		.queue_pair_release	= qat_sym_qp_release,
+		.queue_pair_count	= NULL,
+
+		/* Crypto related operations */
+		.sym_session_get_size	= qat_sym_session_get_private_size,
+		.sym_session_configure	= qat_sym_session_configure,
+		.sym_session_clear	= qat_sym_session_clear
+};
+
+static uint16_t
+qat_sym_pmd_enqueue_op_burst(void *qp, struct rte_crypto_op **ops,
+		uint16_t nb_ops)
+{
+	return qat_enqueue_op_burst(qp, (void **)ops, nb_ops);
+}
+
+static uint16_t
+qat_sym_pmd_dequeue_op_burst(void *qp, struct rte_crypto_op **ops,
+		uint16_t nb_ops)
+{
+	return qat_dequeue_op_burst(qp, (void **)ops, nb_ops);
+}
+
+/* An rte_driver is needed in the registration of both the device and the driver
+ * with cryptodev.
+ * The actual qat pci's rte_driver can't be used as its name represents
+ * the whole pci device with all services. Think of this as a holder for a name
+ * for the crypto part of the pci device.
+ */
+static const char qat_sym_drv_name[] = RTE_STR(CRYPTODEV_NAME_QAT_SYM_PMD);
+static const struct rte_driver cryptodev_qat_sym_driver = {
+	.name = qat_sym_drv_name,
+	.alias = qat_sym_drv_name
+};
+
+int
+qat_sym_dev_create(struct qat_pci_device *qat_pci_dev)
+{
+	struct rte_cryptodev_pmd_init_params init_params = {
+			.name = "",
+			.socket_id = qat_pci_dev->pci_dev->device.numa_node,
+			.private_data_size = sizeof(struct qat_sym_dev_private)
+	};
+	char name[RTE_CRYPTODEV_NAME_MAX_LEN];
+	struct rte_cryptodev *cryptodev;
+	struct qat_sym_dev_private *internals;
+
+	snprintf(name, RTE_CRYPTODEV_NAME_MAX_LEN, "%s_%s",
+			qat_pci_dev->name, "sym");
+	QAT_LOG(DEBUG, "Creating QAT SYM device %s", name);
+
+	/* Populate subset device to use in cryptodev device creation */
+	qat_pci_dev->sym_rte_dev.driver = &cryptodev_qat_sym_driver;
+	qat_pci_dev->sym_rte_dev.numa_node =
+				qat_pci_dev->pci_dev->device.numa_node;
+	qat_pci_dev->sym_rte_dev.devargs = NULL;
+
+	cryptodev = rte_cryptodev_pmd_create(name,
+			&(qat_pci_dev->sym_rte_dev), &init_params);
+
+	if (cryptodev == NULL)
+		return -ENODEV;
+
+	qat_pci_dev->sym_rte_dev.name = cryptodev->data->name;
+	cryptodev->driver_id = cryptodev_qat_driver_id;
+	cryptodev->dev_ops = &crypto_qat_ops;
+
+	cryptodev->enqueue_burst = qat_sym_pmd_enqueue_op_burst;
+	cryptodev->dequeue_burst = qat_sym_pmd_dequeue_op_burst;
+
+	cryptodev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
+			RTE_CRYPTODEV_FF_HW_ACCELERATED |
+			RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
+			RTE_CRYPTODEV_FF_IN_PLACE_SGL |
+			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;
+
+	internals = cryptodev->data->dev_private;
+	internals->qat_dev = qat_pci_dev;
+	qat_pci_dev->sym_dev = internals;
+
+	internals->sym_dev_id = cryptodev->data->dev_id;
+	switch (qat_pci_dev->qat_dev_gen) {
+	case QAT_GEN1:
+		internals->qat_dev_capabilities = qat_gen1_sym_capabilities;
+		break;
+	case QAT_GEN2:
+		internals->qat_dev_capabilities = qat_gen2_sym_capabilities;
+		break;
+	default:
+		internals->qat_dev_capabilities = qat_gen2_sym_capabilities;
+		QAT_LOG(DEBUG,
+			"QAT gen %d capabilities unknown, default to GEN2",
+					qat_pci_dev->qat_dev_gen);
+		break;
+	}
+
+	QAT_LOG(DEBUG, "Created QAT SYM device %s as cryptodev instance %d",
+			cryptodev->data->name, internals->sym_dev_id);
+	return 0;
+}
+
+int
+qat_sym_dev_destroy(struct qat_pci_device *qat_pci_dev)
+{
+	struct rte_cryptodev *cryptodev;
+
+	if (qat_pci_dev == NULL)
+		return -ENODEV;
+	if (qat_pci_dev->sym_dev == NULL)
+		return 0;
+
+	/* free crypto device */
+	cryptodev = rte_cryptodev_pmd_get_dev(qat_pci_dev->sym_dev->sym_dev_id);
+	rte_cryptodev_pmd_destroy(cryptodev);
+	qat_pci_dev->sym_rte_dev.name = NULL;
+	qat_pci_dev->sym_dev = NULL;
+
+	return 0;
+}
+
+
+static struct cryptodev_driver qat_crypto_drv;
+RTE_PMD_REGISTER_CRYPTO_DRIVER(qat_crypto_drv,
+		cryptodev_qat_sym_driver,
+		cryptodev_qat_driver_id);