1 files changed, 531 insertions, 0 deletions

diff --git a/drivers/crypto/octeontx/otx_cryptodev_ops.c b/drivers/crypto/octeontx/otx_cryptodev_ops.c
new file mode 100644
index 00000000..23f96591
--- /dev/null
+++ b/drivers/crypto/octeontx/otx_cryptodev_ops.c
@@ -0,0 +1,531 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Cavium, Inc
+ */
+
+#include <rte_alarm.h>
+#include <rte_bus_pci.h>
+#include <rte_cryptodev.h>
+#include <rte_cryptodev_pmd.h>
+#include <rte_malloc.h>
+
+#include "cpt_pmd_logs.h"
+#include "cpt_pmd_ops_helper.h"
+#include "cpt_ucode.h"
+#include "cpt_request_mgr.h"
+
+#include "otx_cryptodev.h"
+#include "otx_cryptodev_capabilities.h"
+#include "otx_cryptodev_hw_access.h"
+#include "otx_cryptodev_ops.h"
+
+static int otx_cryptodev_probe_count;
+static rte_spinlock_t otx_probe_count_lock = RTE_SPINLOCK_INITIALIZER;
+
+static struct rte_mempool *otx_cpt_meta_pool;
+static int otx_cpt_op_mlen;
+static int otx_cpt_op_sb_mlen;
+
+/* Forward declarations */
+
+static int
+otx_cpt_que_pair_release(struct rte_cryptodev *dev, uint16_t que_pair_id);
+
+/*
+ * Initializes global variables used by fast-path code
+ *
+ * @return
+ *   - 0 on success, errcode on error
+ */
+static int
+init_global_resources(void)
+{
+	/* Get meta len for scatter gather mode */
+	otx_cpt_op_mlen = cpt_pmd_ops_helper_get_mlen_sg_mode();
+
+	/* Extra 4B saved for future considerations */
+	otx_cpt_op_mlen += 4 * sizeof(uint64_t);
+
+	otx_cpt_meta_pool = rte_mempool_create("cpt_metabuf-pool", 4096 * 16,
+					       otx_cpt_op_mlen, 512, 0,
+					       NULL, NULL, NULL, NULL,
+					       SOCKET_ID_ANY, 0);
+	if (!otx_cpt_meta_pool) {
+		CPT_LOG_ERR("cpt metabuf pool not created");
+		return -ENOMEM;
+	}
+
+	/* Get meta len for direct mode */
+	otx_cpt_op_sb_mlen = cpt_pmd_ops_helper_get_mlen_direct_mode();
+
+	/* Extra 4B saved for future considerations */
+	otx_cpt_op_sb_mlen += 4 * sizeof(uint64_t);
+
+	return 0;
+}
+
+void
+cleanup_global_resources(void)
+{
+	/* Take lock */
+	rte_spinlock_lock(&otx_probe_count_lock);
+
+	/* Decrement the cryptodev count */
+	otx_cryptodev_probe_count--;
+
+	/* Free buffers */
+	if (otx_cpt_meta_pool && otx_cryptodev_probe_count == 0)
+		rte_mempool_free(otx_cpt_meta_pool);
+
+	/* Free lock */
+	rte_spinlock_unlock(&otx_probe_count_lock);
+}
+
+/* Alarm routines */
+
+static void
+otx_cpt_alarm_cb(void *arg)
+{
+	struct cpt_vf *cptvf = arg;
+	otx_cpt_poll_misc(cptvf);
+	rte_eal_alarm_set(CPT_INTR_POLL_INTERVAL_MS * 1000,
+			  otx_cpt_alarm_cb, cptvf);
+}
+
+static int
+otx_cpt_periodic_alarm_start(void *arg)
+{
+	return rte_eal_alarm_set(CPT_INTR_POLL_INTERVAL_MS * 1000,
+				 otx_cpt_alarm_cb, arg);
+}
+
+static int
+otx_cpt_periodic_alarm_stop(void *arg)
+{
+	return rte_eal_alarm_cancel(otx_cpt_alarm_cb, arg);
+}
+
+/* PMD ops */
+
+static int
+otx_cpt_dev_config(struct rte_cryptodev *dev __rte_unused,
+		   struct rte_cryptodev_config *config __rte_unused)
+{
+	CPT_PMD_INIT_FUNC_TRACE();
+	return 0;
+}
+
+static int
+otx_cpt_dev_start(struct rte_cryptodev *c_dev)
+{
+	void *cptvf = c_dev->data->dev_private;
+
+	CPT_PMD_INIT_FUNC_TRACE();
+
+	return otx_cpt_start_device(cptvf);
+}
+
+static void
+otx_cpt_dev_stop(struct rte_cryptodev *c_dev)
+{
+	void *cptvf = c_dev->data->dev_private;
+
+	CPT_PMD_INIT_FUNC_TRACE();
+
+	otx_cpt_stop_device(cptvf);
+}
+
+static int
+otx_cpt_dev_close(struct rte_cryptodev *c_dev)
+{
+	void *cptvf = c_dev->data->dev_private;
+	int i, ret;
+
+	CPT_PMD_INIT_FUNC_TRACE();
+
+	for (i = 0; i < c_dev->data->nb_queue_pairs; i++) {
+		ret = otx_cpt_que_pair_release(c_dev, i);
+		if (ret)
+			return ret;
+	}
+
+	otx_cpt_periodic_alarm_stop(cptvf);
+	otx_cpt_deinit_device(cptvf);
+
+	return 0;
+}
+
+static void
+otx_cpt_dev_info_get(struct rte_cryptodev *dev, struct rte_cryptodev_info *info)
+{
+	CPT_PMD_INIT_FUNC_TRACE();
+	if (info != NULL) {
+		info->max_nb_queue_pairs = CPT_NUM_QS_PER_VF;
+		info->feature_flags = dev->feature_flags;
+		info->capabilities = otx_get_capabilities();
+		info->sym.max_nb_sessions = 0;
+		info->driver_id = otx_cryptodev_driver_id;
+		info->min_mbuf_headroom_req = OTX_CPT_MIN_HEADROOM_REQ;
+		info->min_mbuf_tailroom_req = OTX_CPT_MIN_TAILROOM_REQ;
+	}
+}
+
+static void
+otx_cpt_stats_get(struct rte_cryptodev *dev __rte_unused,
+		  struct rte_cryptodev_stats *stats __rte_unused)
+{
+	CPT_PMD_INIT_FUNC_TRACE();
+}
+
+static void
+otx_cpt_stats_reset(struct rte_cryptodev *dev __rte_unused)
+{
+	CPT_PMD_INIT_FUNC_TRACE();
+}
+
+static int
+otx_cpt_que_pair_setup(struct rte_cryptodev *dev,
+		       uint16_t que_pair_id,
+		       const struct rte_cryptodev_qp_conf *qp_conf,
+		       int socket_id __rte_unused,
+		       struct rte_mempool *session_pool __rte_unused)
+{
+	void *cptvf = dev->data->dev_private;
+	struct cpt_instance *instance = NULL;
+	struct rte_pci_device *pci_dev;
+	int ret = -1;
+
+	CPT_PMD_INIT_FUNC_TRACE();
+
+	if (dev->data->queue_pairs[que_pair_id] != NULL) {
+		ret = otx_cpt_que_pair_release(dev, que_pair_id);
+		if (ret)
+			return ret;
+	}
+
+	if (qp_conf->nb_descriptors > DEFAULT_CMD_QLEN) {
+		CPT_LOG_INFO("Number of descriptors too big %d, using default "
+			     "queue length of %d", qp_conf->nb_descriptors,
+			     DEFAULT_CMD_QLEN);
+	}
+
+	pci_dev = RTE_DEV_TO_PCI(dev->device);
+
+	if (pci_dev->mem_resource[0].addr == NULL) {
+		CPT_LOG_ERR("PCI mem address null");
+		return -EIO;
+	}
+
+	ret = otx_cpt_get_resource(cptvf, 0, &instance);
+	if (ret != 0) {
+		CPT_LOG_ERR("Error getting instance handle from device %s : "
+			    "ret = %d", dev->data->name, ret);
+		return ret;
+	}
+
+	instance->queue_id = que_pair_id;
+	dev->data->queue_pairs[que_pair_id] = instance;
+
+	return 0;
+}
+
+static int
+otx_cpt_que_pair_release(struct rte_cryptodev *dev, uint16_t que_pair_id)
+{
+	struct cpt_instance *instance = dev->data->queue_pairs[que_pair_id];
+	int ret;
+
+	CPT_PMD_INIT_FUNC_TRACE();
+
+	ret = otx_cpt_put_resource(instance);
+	if (ret != 0) {
+		CPT_LOG_ERR("Error putting instance handle of device %s : "
+			    "ret = %d", dev->data->name, ret);
+		return ret;
+	}
+
+	dev->data->queue_pairs[que_pair_id] = NULL;
+
+	return 0;
+}
+
+static unsigned int
+otx_cpt_get_session_size(struct rte_cryptodev *dev __rte_unused)
+{
+	return cpt_get_session_size();
+}
+
+static void
+otx_cpt_session_init(void *sym_sess, uint8_t driver_id)
+{
+	struct rte_cryptodev_sym_session *sess = sym_sess;
+	struct cpt_sess_misc *cpt_sess =
+	 (struct cpt_sess_misc *) get_sym_session_private_data(sess, driver_id);
+
+	CPT_PMD_INIT_FUNC_TRACE();
+	cpt_sess->ctx_dma_addr = rte_mempool_virt2iova(cpt_sess) +
+			sizeof(struct cpt_sess_misc);
+}
+
+static int
+otx_cpt_session_cfg(struct rte_cryptodev *dev,
+		    struct rte_crypto_sym_xform *xform,
+		    struct rte_cryptodev_sym_session *sess,
+		    struct rte_mempool *mempool)
+{
+	struct rte_crypto_sym_xform *chain;
+	void *sess_private_data = NULL;
+
+	CPT_PMD_INIT_FUNC_TRACE();
+
+	if (cpt_is_algo_supported(xform))
+		goto err;
+
+	if (unlikely(sess == NULL)) {
+		CPT_LOG_ERR("invalid session struct");
+		return -EINVAL;
+	}
+
+	if (rte_mempool_get(mempool, &sess_private_data)) {
+		CPT_LOG_ERR("Could not allocate sess_private_data");
+		return -ENOMEM;
+	}
+
+	chain = xform;
+	while (chain) {
+		switch (chain->type) {
+		case RTE_CRYPTO_SYM_XFORM_AEAD:
+			if (fill_sess_aead(chain, sess_private_data))
+				goto err;
+			break;
+		case RTE_CRYPTO_SYM_XFORM_CIPHER:
+			if (fill_sess_cipher(chain, sess_private_data))
+				goto err;
+			break;
+		case RTE_CRYPTO_SYM_XFORM_AUTH:
+			if (chain->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC) {
+				if (fill_sess_gmac(chain, sess_private_data))
+					goto err;
+			} else {
+				if (fill_sess_auth(chain, sess_private_data))
+					goto err;
+			}
+			break;
+		default:
+			CPT_LOG_ERR("Invalid crypto xform type");
+			break;
+		}
+		chain = chain->next;
+	}
+	set_sym_session_private_data(sess, dev->driver_id, sess_private_data);
+	otx_cpt_session_init(sess, dev->driver_id);
+	return 0;
+
+err:
+	if (sess_private_data)
+		rte_mempool_put(mempool, sess_private_data);
+	return -EPERM;
+}
+
+static void
+otx_cpt_session_clear(struct rte_cryptodev *dev,
+		  struct rte_cryptodev_sym_session *sess)
+{
+	void *sess_priv = get_sym_session_private_data(sess, dev->driver_id);
+
+	CPT_PMD_INIT_FUNC_TRACE();
+	if (sess_priv) {
+		memset(sess_priv, 0, otx_cpt_get_session_size(dev));
+		struct rte_mempool *sess_mp = rte_mempool_from_obj(sess_priv);
+		set_sym_session_private_data(sess, dev->driver_id, NULL);
+		rte_mempool_put(sess_mp, sess_priv);
+	}
+}
+
+static uint16_t
+otx_cpt_pkt_enqueue(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
+{
+	struct cpt_instance *instance = (struct cpt_instance *)qptr;
+	uint16_t count = 0;
+	int ret;
+	struct cpt_vf *cptvf = (struct cpt_vf *)instance;
+	struct pending_queue *pqueue = &cptvf->pqueue;
+
+	count = DEFAULT_CMD_QLEN - pqueue->pending_count;
+	if (nb_ops > count)
+		nb_ops = count;
+
+	count = 0;
+	while (likely(count < nb_ops)) {
+		ret = cpt_pmd_crypto_operation(instance, ops[count], pqueue,
+						otx_cryptodev_driver_id);
+		if (unlikely(ret))
+			break;
+		count++;
+	}
+	otx_cpt_ring_dbell(instance, count);
+	return count;
+}
+
+static uint16_t
+otx_cpt_pkt_dequeue(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
+{
+	struct cpt_instance *instance = (struct cpt_instance *)qptr;
+	struct cpt_vf *cptvf = (struct cpt_vf *)instance;
+	struct pending_queue *pqueue = &cptvf->pqueue;
+	uint16_t nb_completed, i = 0;
+	uint8_t compcode[nb_ops];
+
+	nb_completed = cpt_dequeue_burst(instance, nb_ops,
+					 (void **)ops, compcode, pqueue);
+	while (likely(i < nb_completed)) {
+		struct rte_crypto_op *cop;
+		void *metabuf;
+		uintptr_t *rsp;
+		uint8_t status;
+
+		rsp = (void *)ops[i];
+		status = compcode[i];
+		if (likely((i + 1) < nb_completed))
+			rte_prefetch0(ops[i+1]);
+		metabuf = (void *)rsp[0];
+		cop = (void *)rsp[1];
+
+		ops[i] = cop;
+
+		if (likely(status == 0)) {
+			if (likely(!rsp[2]))
+				cop->status =
+					RTE_CRYPTO_OP_STATUS_SUCCESS;
+			else
+				compl_auth_verify(cop, (uint8_t *)rsp[2],
+						  rsp[3]);
+		} else if (status == ERR_GC_ICV_MISCOMPARE) {
+			/*auth data mismatch */
+			cop->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
+		} else {
+			cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
+		}
+		free_op_meta(metabuf, cptvf->meta_info.cptvf_meta_pool);
+		i++;
+	}
+	return nb_completed;
+}
+
+static struct rte_cryptodev_ops cptvf_ops = {
+	/* Device related operations */
+	.dev_configure = otx_cpt_dev_config,
+	.dev_start = otx_cpt_dev_start,
+	.dev_stop = otx_cpt_dev_stop,
+	.dev_close = otx_cpt_dev_close,
+	.dev_infos_get = otx_cpt_dev_info_get,
+
+	.stats_get = otx_cpt_stats_get,
+	.stats_reset = otx_cpt_stats_reset,
+	.queue_pair_setup = otx_cpt_que_pair_setup,
+	.queue_pair_release = otx_cpt_que_pair_release,
+	.queue_pair_count = NULL,
+
+	/* Crypto related operations */
+	.sym_session_get_size = otx_cpt_get_session_size,
+	.sym_session_configure = otx_cpt_session_cfg,
+	.sym_session_clear = otx_cpt_session_clear
+};
+
+static void
+otx_cpt_common_vars_init(struct cpt_vf *cptvf)
+{
+	cptvf->meta_info.cptvf_meta_pool = otx_cpt_meta_pool;
+	cptvf->meta_info.cptvf_op_mlen = otx_cpt_op_mlen;
+	cptvf->meta_info.cptvf_op_sb_mlen = otx_cpt_op_sb_mlen;
+}
+
+int
+otx_cpt_dev_create(struct rte_cryptodev *c_dev)
+{
+	struct rte_pci_device *pdev = RTE_DEV_TO_PCI(c_dev->device);
+	struct cpt_vf *cptvf = NULL;
+	void *reg_base;
+	char dev_name[32];
+	int ret;
+
+	if (pdev->mem_resource[0].phys_addr == 0ULL)
+		return -EIO;
+
+	/* for secondary processes, we don't initialise any further as primary
+	 * has already done this work.
+	 */
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+		return 0;
+
+	cptvf = rte_zmalloc_socket("otx_cryptodev_private_mem",
+			sizeof(struct cpt_vf), RTE_CACHE_LINE_SIZE,
+			rte_socket_id());
+
+	if (cptvf == NULL) {
+		CPT_LOG_ERR("Cannot allocate memory for device private data");
+		return -ENOMEM;
+	}
+
+	snprintf(dev_name, 32, "%02x:%02x.%x",
+			pdev->addr.bus, pdev->addr.devid, pdev->addr.function);
+
+	reg_base = pdev->mem_resource[0].addr;
+	if (!reg_base) {
+		CPT_LOG_ERR("Failed to map BAR0 of %s", dev_name);
+		ret = -ENODEV;
+		goto fail;
+	}
+
+	ret = otx_cpt_hw_init(cptvf, pdev, reg_base, dev_name);
+	if (ret) {
+		CPT_LOG_ERR("Failed to init cptvf %s", dev_name);
+		ret = -EIO;
+		goto fail;
+	}
+
+	/* Start off timer for mailbox interrupts */
+	otx_cpt_periodic_alarm_start(cptvf);
+
+	rte_spinlock_lock(&otx_probe_count_lock);
+	if (!otx_cryptodev_probe_count) {
+		ret = init_global_resources();
+		if (ret) {
+			rte_spinlock_unlock(&otx_probe_count_lock);
+			goto init_fail;
+		}
+	}
+	otx_cryptodev_probe_count++;
+	rte_spinlock_unlock(&otx_probe_count_lock);
+
+	/* Initialize data path variables used by common code */
+	otx_cpt_common_vars_init(cptvf);
+
+	c_dev->dev_ops = &cptvf_ops;
+
+	c_dev->enqueue_burst = otx_cpt_pkt_enqueue;
+	c_dev->dequeue_burst = otx_cpt_pkt_dequeue;
+
+	c_dev->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_LB_OUT |
+			RTE_CRYPTODEV_FF_OOP_SGL_IN_SGL_OUT;
+
+	/* Save dev private data */
+	c_dev->data->dev_private = cptvf;
+
+	return 0;
+
+init_fail:
+	otx_cpt_periodic_alarm_stop(cptvf);
+	otx_cpt_deinit_device(cptvf);
+
+fail:
+	if (cptvf) {
+		/* Free private data allocated */
+		rte_free(cptvf);
+	}
+
+	return ret;
+}