1 files changed, 297 insertions, 0 deletions

diff --git a/drivers/raw/dpaa2_cmdif/dpaa2_cmdif.c b/drivers/raw/dpaa2_cmdif/dpaa2_cmdif.c
new file mode 100644
index 00000000..469960a3
--- /dev/null
+++ b/drivers/raw/dpaa2_cmdif/dpaa2_cmdif.c
@@ -0,0 +1,297 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2018 NXP
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include <stdint.h>
+
+#include <rte_bus_vdev.h>
+#include <rte_atomic.h>
+#include <rte_interrupts.h>
+#include <rte_branch_prediction.h>
+#include <rte_lcore.h>
+
+#include <rte_rawdev.h>
+#include <rte_rawdev_pmd.h>
+
+#include <portal/dpaa2_hw_pvt.h>
+#include <portal/dpaa2_hw_dpio.h>
+#include "dpaa2_cmdif_logs.h"
+#include "rte_pmd_dpaa2_cmdif.h"
+
+/* Dynamic log type identifier */
+int dpaa2_cmdif_logtype;
+
+/* CMDIF driver name */
+#define DPAA2_CMDIF_PMD_NAME dpaa2_dpci
+
+/* CMDIF driver object */
+static struct rte_vdev_driver dpaa2_cmdif_drv;
+
+/*
+ * This API provides the DPCI device ID in 'attr_value'.
+ * The device ID shall be passed by GPP to the AIOP using CMDIF commands.
+ */
+static int
+dpaa2_cmdif_get_attr(struct rte_rawdev *dev,
+		     const char *attr_name,
+		     uint64_t *attr_value)
+{
+	struct dpaa2_dpci_dev *cidev = dev->dev_private;
+
+	DPAA2_CMDIF_FUNC_TRACE();
+
+	RTE_SET_USED(attr_name);
+
+	if (!attr_value) {
+		DPAA2_CMDIF_ERR("Invalid arguments for getting attributes");
+		return -EINVAL;
+	}
+	*attr_value = cidev->dpci_id;
+
+	return 0;
+}
+
+static int
+dpaa2_cmdif_enqueue_bufs(struct rte_rawdev *dev,
+			 struct rte_rawdev_buf **buffers,
+			 unsigned int count,
+			 rte_rawdev_obj_t context)
+{
+	struct dpaa2_dpci_dev *cidev = dev->dev_private;
+	struct rte_dpaa2_cmdif_context *cmdif_send_cnxt;
+	struct dpaa2_queue *txq;
+	struct qbman_fd fd;
+	struct qbman_eq_desc eqdesc;
+	struct qbman_swp *swp;
+	int ret;
+
+	DPAA2_CMDIF_FUNC_TRACE();
+
+	RTE_SET_USED(count);
+
+	if (unlikely(!DPAA2_PER_LCORE_DPIO)) {
+		ret = dpaa2_affine_qbman_swp();
+		if (ret) {
+			DPAA2_CMDIF_ERR("Failure in affining portal\n");
+			return 0;
+		}
+	}
+	swp = DPAA2_PER_LCORE_PORTAL;
+
+	cmdif_send_cnxt = (struct rte_dpaa2_cmdif_context *)(context);
+	txq = &(cidev->tx_queue[cmdif_send_cnxt->priority]);
+
+	/* Prepare enqueue descriptor */
+	qbman_eq_desc_clear(&eqdesc);
+	qbman_eq_desc_set_fq(&eqdesc, txq->fqid);
+	qbman_eq_desc_set_no_orp(&eqdesc, 0);
+	qbman_eq_desc_set_response(&eqdesc, 0, 0);
+
+	/* Set some of the FD parameters to i.
+	 * For performance reasons do not memset
+	 */
+	fd.simple.bpid_offset = 0;
+	fd.simple.ctrl = 0;
+
+	DPAA2_SET_FD_ADDR(&fd, DPAA2_VADDR_TO_IOVA(buffers[0]->buf_addr));
+	DPAA2_SET_FD_LEN(&fd, cmdif_send_cnxt->size);
+	DPAA2_SET_FD_FRC(&fd, cmdif_send_cnxt->frc);
+	DPAA2_SET_FD_FLC(&fd, cmdif_send_cnxt->flc);
+
+	/* Enqueue a packet to the QBMAN */
+	do {
+		ret = qbman_swp_enqueue_multiple(swp, &eqdesc, &fd, NULL, 1);
+		if (ret < 0 && ret != -EBUSY)
+			DPAA2_CMDIF_ERR("Transmit failure with err: %d\n", ret);
+	} while (ret == -EBUSY);
+
+	DPAA2_CMDIF_DP_DEBUG("Successfully transmitted a packet\n");
+
+	return 0;
+}
+
+static int
+dpaa2_cmdif_dequeue_bufs(struct rte_rawdev *dev,
+			 struct rte_rawdev_buf **buffers,
+			 unsigned int count,
+			 rte_rawdev_obj_t context)
+{
+	struct dpaa2_dpci_dev *cidev = dev->dev_private;
+	struct rte_dpaa2_cmdif_context *cmdif_rcv_cnxt;
+	struct dpaa2_queue *rxq;
+	struct qbman_swp *swp;
+	struct qbman_result *dq_storage;
+	const struct qbman_fd *fd;
+	struct qbman_pull_desc pulldesc;
+	uint8_t status;
+	int ret;
+
+	DPAA2_CMDIF_FUNC_TRACE();
+
+	RTE_SET_USED(count);
+
+	if (unlikely(!DPAA2_PER_LCORE_DPIO)) {
+		ret = dpaa2_affine_qbman_swp();
+		if (ret) {
+			DPAA2_CMDIF_ERR("Failure in affining portal\n");
+			return 0;
+		}
+	}
+	swp = DPAA2_PER_LCORE_PORTAL;
+
+	cmdif_rcv_cnxt = (struct rte_dpaa2_cmdif_context *)(context);
+	rxq = &(cidev->rx_queue[cmdif_rcv_cnxt->priority]);
+	dq_storage = rxq->q_storage->dq_storage[0];
+
+	qbman_pull_desc_clear(&pulldesc);
+	qbman_pull_desc_set_fq(&pulldesc, rxq->fqid);
+	qbman_pull_desc_set_numframes(&pulldesc, 1);
+	qbman_pull_desc_set_storage(&pulldesc, dq_storage,
+		(uint64_t)(DPAA2_VADDR_TO_IOVA(dq_storage)), 1);
+
+	while (1) {
+		if (qbman_swp_pull(swp, &pulldesc)) {
+			DPAA2_CMDIF_DP_WARN("VDQ cmd not issued. QBMAN is busy\n");
+			/* Portal was busy, try again */
+			continue;
+		}
+		break;
+	}
+
+	/* Check if previous issued command is completed. */
+	while (!qbman_check_command_complete(dq_storage))
+		;
+	/* Loop until the dq_storage is updated with new token by QBMAN */
+	while (!qbman_result_has_new_result(swp, dq_storage))
+		;
+
+	/* Check for valid frame. */
+	status = (uint8_t)qbman_result_DQ_flags(dq_storage);
+	if (unlikely((status & QBMAN_DQ_STAT_VALIDFRAME) == 0)) {
+		DPAA2_CMDIF_DP_DEBUG("No frame is delivered\n");
+		return 0;
+	}
+
+	fd = qbman_result_DQ_fd(dq_storage);
+
+	buffers[0]->buf_addr = (void *)DPAA2_IOVA_TO_VADDR(
+			DPAA2_GET_FD_ADDR(fd) +	DPAA2_GET_FD_OFFSET(fd));
+	cmdif_rcv_cnxt->size = DPAA2_GET_FD_LEN(fd);
+	cmdif_rcv_cnxt->flc = DPAA2_GET_FD_FLC(fd);
+	cmdif_rcv_cnxt->frc = DPAA2_GET_FD_FRC(fd);
+
+	DPAA2_CMDIF_DP_DEBUG("packet received\n");
+
+	return 1;
+}
+
+static const struct rte_rawdev_ops dpaa2_cmdif_ops = {
+	.attr_get = dpaa2_cmdif_get_attr,
+	.enqueue_bufs = dpaa2_cmdif_enqueue_bufs,
+	.dequeue_bufs = dpaa2_cmdif_dequeue_bufs,
+};
+
+static int
+dpaa2_cmdif_create(const char *name,
+		   struct rte_vdev_device *vdev,
+		   int socket_id)
+{
+	struct rte_rawdev *rawdev;
+	struct dpaa2_dpci_dev *cidev;
+
+	/* Allocate device structure */
+	rawdev = rte_rawdev_pmd_allocate(name, sizeof(struct dpaa2_dpci_dev),
+					 socket_id);
+	if (!rawdev) {
+		DPAA2_CMDIF_ERR("Unable to allocate rawdevice");
+		return -EINVAL;
+	}
+
+	rawdev->dev_ops = &dpaa2_cmdif_ops;
+	rawdev->device = &vdev->device;
+	rawdev->driver_name = vdev->device.driver->name;
+
+	/* For secondary processes, the primary has done all the work */
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+		return 0;
+
+	cidev = rte_dpaa2_alloc_dpci_dev();
+	if (!cidev) {
+		DPAA2_CMDIF_ERR("Unable to allocate CI device");
+		rte_rawdev_pmd_release(rawdev);
+		return -ENODEV;
+	}
+
+	rawdev->dev_private = cidev;
+
+	return 0;
+}
+
+static int
+dpaa2_cmdif_destroy(const char *name)
+{
+	int ret;
+	struct rte_rawdev *rdev;
+
+	rdev = rte_rawdev_pmd_get_named_dev(name);
+	if (!rdev) {
+		DPAA2_CMDIF_ERR("Invalid device name (%s)", name);
+		return -EINVAL;
+	}
+
+	/* The primary process will only free the DPCI device */
+	if (rte_eal_process_type() == RTE_PROC_PRIMARY)
+		rte_dpaa2_free_dpci_dev(rdev->dev_private);
+
+	ret = rte_rawdev_pmd_release(rdev);
+	if (ret)
+		DPAA2_CMDIF_DEBUG("Device cleanup failed");
+
+	return 0;
+}
+
+static int
+dpaa2_cmdif_probe(struct rte_vdev_device *vdev)
+{
+	const char *name;
+	int ret = 0;
+
+	name = rte_vdev_device_name(vdev);
+
+	DPAA2_CMDIF_INFO("Init %s on NUMA node %d", name, rte_socket_id());
+
+	ret = dpaa2_cmdif_create(name, vdev, rte_socket_id());
+
+	return ret;
+}
+
+static int
+dpaa2_cmdif_remove(struct rte_vdev_device *vdev)
+{
+	const char *name;
+	int ret;
+
+	name = rte_vdev_device_name(vdev);
+
+	DPAA2_CMDIF_INFO("Closing %s on NUMA node %d", name, rte_socket_id());
+
+	ret = dpaa2_cmdif_destroy(name);
+
+	return ret;
+}
+
+static struct rte_vdev_driver dpaa2_cmdif_drv = {
+	.probe = dpaa2_cmdif_probe,
+	.remove = dpaa2_cmdif_remove
+};
+
+RTE_PMD_REGISTER_VDEV(DPAA2_CMDIF_PMD_NAME, dpaa2_cmdif_drv);
+
+RTE_INIT(dpaa2_cmdif_init_log)
+{
+	dpaa2_cmdif_logtype = rte_log_register("pmd.raw.dpaa2.cmdif");
+	if (dpaa2_cmdif_logtype >= 0)
+		rte_log_set_level(dpaa2_cmdif_logtype, RTE_LOG_INFO);
+}