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Date: Wed, 31 May 2017 20:40:03 +0530
From: Jerin Jacob <jerin.jacob@caviumnetworks.com>
To: Nipun Gupta <nipun.gupta@nxp.com>
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Subject: Re: [dpdk-dev] [PATCH 10/20] event/dpaa2: add initialization of
event device
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-----Original Message-----
> Date: Thu, 25 May 2017 23:37:41 +0530
> From: Nipun Gupta <nipun.gupta@nxp.com>
> To: dev@dpdk.org
> CC: hemant.agrawal@nxp.com, jerin.jacob@caviumnetworks.com,
> harry.van.haaren@intel.com, bruce.richardson@intel.com,
> gage.eads@intel.com, shreyansh.jain@nxp.com, Nipun Gupta
> <nipun.gupta@nxp.com>
> Subject: [PATCH 10/20] event/dpaa2: add initialization of event device
> X-Mailer: git-send-email 1.9.1
>
> Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
> ---
> drivers/event/dpaa2/dpaa2_eventdev.c | 153 ++++++++++++++++++++++++++++++++++-
> drivers/event/dpaa2/dpaa2_eventdev.h | 22 +++++
> 2 files changed, 171 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/event/dpaa2/dpaa2_eventdev.c b/drivers/event/dpaa2/dpaa2_eventdev.c
> index 191901e..7fa17f2 100644
> --- a/drivers/event/dpaa2/dpaa2_eventdev.c
> +++ b/drivers/event/dpaa2/dpaa2_eventdev.c
> @@ -30,17 +30,164 @@
> * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
> */
>
> +#include <assert.h>
> +#include <stdio.h>
> +#include <stdbool.h>
> +#include <errno.h>
> +#include <stdint.h>
> +#include <string.h>
> +#include <stdint.h>
> +#include <sys/epoll.h>
> +
> +#include <rte_byteorder.h>
> +#include <rte_common.h>
> +#include <rte_debug.h>
> +#include <rte_dev.h>
> #include <rte_eal.h>
> +#include <rte_log.h>
> +#include <rte_memory.h>
> +#include <rte_memzone.h>
> +#include <rte_malloc.h>
> +#include <rte_pci.h>
> +#include <rte_lcore.h>
> #include <rte_vdev.h>
> +#include <rte_fslmc.h>
> +#include <rte_atomic.h>
Maintain alphabetical order in header inclusion.
>
> +#include <fslmc_vfio.h>
> +#include <dpaa2_hw_pvt.h>
> +#include <dpaa2_hw_mempool.h>
> +#include <dpaa2_hw_dpio.h>
> #include "dpaa2_eventdev.h"
> +#include <portal/dpaa2_hw_pvt.h>
> +#include <mc/fsl_dpci.h>
> +
> +/* Clarifications
> + * Evendev = SoC Instance
> + * Eventport = DPIO Instance
> + * Eventqueue = DPCON Instance
> + * 1 Eventdev can have N Eventqueue
> + * Soft Event Flow is DPCI Instance
> + */
> +
> +static uint16_t
> +dpaa2_eventdev_enqueue_burst(void *port, const struct rte_event ev[],
> + uint16_t nb_events)
> +{
> + RTE_SET_USED(port);
> + RTE_SET_USED(ev);
> + RTE_SET_USED(nb_events);
> +
> + return 0;
> +}
> +
> +static uint16_t
> +dpaa2_eventdev_enqueue(void *port, const struct rte_event *ev)
> +{
> + return dpaa2_eventdev_enqueue_burst(port, ev, 1);
> +}
> +
> +static uint16_t
> +dpaa2_eventdev_dequeue_burst(void *port, struct rte_event ev[],
> + uint16_t nb_events, uint64_t timeout_ticks)
> +{
> + RTE_SET_USED(port);
> + RTE_SET_USED(ev);
> + RTE_SET_USED(nb_events);
> + RTE_SET_USED(timeout_ticks);
> +
> + return 0;
> +}
> +
> +static uint16_t
> +dpaa2_eventdev_dequeue(void *port, struct rte_event *ev,
> + uint64_t timeout_ticks)
> +{
> + return dpaa2_eventdev_dequeue_burst(port, ev, 1, timeout_ticks);
> +}
> +
> +static const struct rte_eventdev_ops dpaa2_eventdev_ops;
> +
> +static int
> +dpaa2_eventdev_setup_dpci(struct dpaa2_dpci_dev *dpci_dev,
> + struct dpaa2_dpcon_dev *dpcon_dev)
> +{
> + struct dpci_rx_queue_cfg rx_queue_cfg;
> + int ret, i;
> +
> + /*Do settings to get the frame on a DPCON object*/
> + rx_queue_cfg.options = DPCI_QUEUE_OPT_DEST;
> + rx_queue_cfg.dest_cfg.dest_type = DPCI_DEST_DPCON;
> + rx_queue_cfg.dest_cfg.dest_id = dpcon_dev->dpcon_id;
> + rx_queue_cfg.dest_cfg.priority = DPAA2_EVENT_DEFAULT_DPCI_PRIO;
> +
> + for (i = 0 ; i < DPAA2_EVENT_DPCI_MAX_QUEUES; i++) {
> + rx_queue_cfg.user_ctx = (uint64_t)(&dpci_dev->queue[i]);
> + ret = dpci_set_rx_queue(&dpci_dev->dpci,
> + CMD_PRI_LOW,
> + dpci_dev->token, i,
> + &rx_queue_cfg);
> + if (ret) {
> + PMD_DRV_LOG(ERR, PMD,
> + "set_rx_q failed with err code: %d", ret);
> + return ret;
> + }
> + }
> + return 0;
> +}
>
> static int
> dpaa2_eventdev_create(const char *name)
> {
> - RTE_SET_USED(name);
> + struct rte_eventdev *eventdev;
> + struct dpaa2_eventdev *priv;
> + struct dpaa2_dpcon_dev *dpcon_dev = NULL;
> + struct dpaa2_dpci_dev *dpci_dev = NULL;
> + int ret;
> +
> + eventdev = rte_event_pmd_vdev_init(name,
> + sizeof(struct dpaa2_eventdev),
> + rte_socket_id());
> + if (eventdev == NULL) {
> + PMD_DRV_ERR("Failed to create eventdev vdev %s", name);
> + goto fail;
> + }
> +
> + eventdev->dev_ops = &dpaa2_eventdev_ops;
> + eventdev->schedule = NULL;
> + eventdev->enqueue = dpaa2_eventdev_enqueue;
> + eventdev->enqueue_burst = dpaa2_eventdev_enqueue_burst;
> + eventdev->dequeue = dpaa2_eventdev_dequeue;
> + eventdev->dequeue_burst = dpaa2_eventdev_dequeue_burst;
If it makes senses, you can return from here if its in multi process mode.
> +
> + priv = eventdev->data->dev_private;
> + priv->max_event_queues = 0;
> +
> + do {
> + dpcon_dev = rte_dpaa2_alloc_dpcon_dev();
> + if (!dpcon_dev)
> + break;
> + priv->evq_info[priv->max_event_queues].dpcon = dpcon_dev;
> +
> + dpci_dev = rte_dpaa2_alloc_dpci_dev();
> + if (!dpci_dev) {
> + rte_dpaa2_free_dpcon_dev(dpcon_dev);
> + break;
> + }
> + priv->evq_info[priv->max_event_queues].dpci = dpci_dev;
> +
> + ret = dpaa2_eventdev_setup_dpci(dpci_dev, dpcon_dev);
> + if (ret) {
> + PMD_DRV_LOG(ERR, PMD,
> + "dpci setup failed with err code: %d", ret);
> + return ret;
> + }
> + priv->max_event_queues++;
> + } while (dpcon_dev && dpci_dev);
>
> return 0;
> +fail:
> + return -EFAULT;
> }
>
> static int
> @@ -61,9 +208,7 @@
> name = rte_vdev_device_name(vdev);
> PMD_DRV_LOG(INFO, "Closing %s", name);
>
> - RTE_SET_USED(name);
> -
> - return 0;
> + return rte_event_pmd_vdev_uninit(name);
> }