[dpdk-dev] [PATCH 19/32] net/dpaa2: adding eth ops to dpaa2

[Ferruh Yigit]

On 12/4/2016 6:17 PM, Hemant Agrawal wrote:
> Signed-off-by: Hemant Agrawal <hemant.agrawal at nxp.com>
> ---
>  drivers/net/dpaa2/base/dpaa2_hw_dpni.h |  50 +++++++++++++
>  drivers/net/dpaa2/dpaa2_ethdev.c       | 130 ++++++++++++++++++++++++++++++++-
>  2 files changed, 179 insertions(+), 1 deletion(-)
>  create mode 100644 drivers/net/dpaa2/base/dpaa2_hw_dpni.h
> 
> diff --git a/drivers/net/dpaa2/base/dpaa2_hw_dpni.h b/drivers/net/dpaa2/base/dpaa2_hw_dpni.h
> new file mode 100644
> index 0000000..1b655e4
> --- /dev/null
> +++ b/drivers/net/dpaa2/base/dpaa2_hw_dpni.h
> @@ -0,0 +1,50 @@
> +/*-
> + *   BSD LICENSE
> + *
> + *   Copyright (c) 2016 Freescale Semiconductor, Inc. All rights reserved.
> + *   Copyright (c) 2016 NXP. 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 Freescale Semiconductor, Inc 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.
> + */
> +
> +#ifndef _DPAA2_HW_DPNI_H_
> +#define _DPAA2_HW_DPNI_H_
> +
> +#include <fsl_dpni.h>
> +#include <fsl_mc_sys.h>
> +/*! Global MCP list */
> +extern void *(*mcp_ptr_list);

extern keyword not needed.

> +
> +
> +struct dpaa2_dev_priv {

Any reason this is not in dpaa2_ethdev.h but in a new header file, since
this looks like ethernet device private data. Just asking.

> +	void *hw;
> +	int32_t hw_id;
> +	uint16_t token;
> +
> +	uint8_t flags; /*dpaa2 config flags */
> +};
> +#endif /* _DPAA2_DPNI_H_ */
> diff --git a/drivers/net/dpaa2/dpaa2_ethdev.c b/drivers/net/dpaa2/dpaa2_ethdev.c
> index 17dfff6..daf59c1 100644
> --- a/drivers/net/dpaa2/dpaa2_ethdev.c
> +++ b/drivers/net/dpaa2/dpaa2_ethdev.c
> @@ -43,12 +43,140 @@
>  #include <rte_kvargs.h>
>  #include <rte_dev.h>
>  #include <rte_ethdev.h>
> +#include <rte_dpaa2.h>
>  
> +#include <dpaa2_logs.h>
> +#include <base/dpaa2_hw_dpni.h>
>  /* DPDK Interfaces */
>  #include <dpaa2_ethdev.h>
>  
> +static int
> +dpaa2_eth_dev_configure(struct rte_eth_dev *dev)
> +{
> +	struct rte_eth_dev_data *data = dev->data;
> +	struct rte_eth_conf *eth_conf = &data->dev_conf;
> +
> +	PMD_INIT_FUNC_TRACE();
> +
> +	/* Check for correct configuration */
> +	if (eth_conf->rxmode.mq_mode != ETH_MQ_RX_RSS &&
> +	    data->nb_rx_queues > 1) {
> +		PMD_INIT_LOG(ERR, "Distribution is not enabled, "
> +			    "but Rx queues more than 1\n");
> +		return -1;
> +	}
> +
> +	return 0;
> +}
> +
> +static int
> +dpaa2_dev_start(struct rte_eth_dev *dev)
> +{
> +	struct dpaa2_dev_priv *priv = dev->data->dev_private;
> +	struct fsl_mc_io *dpni = (struct fsl_mc_io *)priv->hw;
> +	int ret;
> +
> +	PMD_INIT_FUNC_TRACE();
> +
> +	ret = dpni_enable(dpni, CMD_PRI_LOW, priv->token);
> +	if (ret) {
> +		PMD_INIT_LOG(ERR, "Failure %d in enabling dpni %d device\n",
> +			     ret, priv->hw_id);
> +		return ret;
> +	}
> +
> +	return 0;
> +}
> +
> +/**
> + *  This routine disables all traffic on the adapter by issuing a
> + *  global reset on the MAC.
> + */
> +static void
> +dpaa2_dev_stop(struct rte_eth_dev *dev)
> +{
> +	struct dpaa2_dev_priv *priv = dev->data->dev_private;
> +	struct fsl_mc_io *dpni = (struct fsl_mc_io *)priv->hw;
> +	int ret;
> +
> +	PMD_INIT_FUNC_TRACE();
> +
> +	ret = dpni_disable(dpni, CMD_PRI_LOW, priv->token);
> +	if (ret) {
> +		PMD_INIT_LOG(ERR, "Failure (ret %d) in disabling dpni %d dev\n",
> +			     ret, priv->hw_id);
> +		return;
> +	}
> +}
> +
> +static void
> +dpaa2_dev_close(struct rte_eth_dev *dev)
> +{
> +	struct dpaa2_dev_priv *priv = dev->data->dev_private;
> +	struct fsl_mc_io *dpni = (struct fsl_mc_io *)priv->hw;
> +	int ret;
> +
> +	PMD_INIT_FUNC_TRACE();
> +
> +	/* Clean the device first */
> +	ret = dpni_reset(dpni, CMD_PRI_LOW, priv->token);
> +	if (ret) {
> +		PMD_INIT_LOG(ERR, "Failure cleaning dpni device with"
> +			     " error code %d\n", ret);
> +		return;
> +	}
> +}
> +
> +static struct eth_dev_ops dpaa2_ethdev_ops = {
> +	.dev_configure	  = dpaa2_eth_dev_configure,
> +	.dev_start	      = dpaa2_dev_start,
> +	.dev_stop	      = dpaa2_dev_stop,
> +	.dev_close	      = dpaa2_dev_close,
> +};
> +
>  int
> -dpaa2_dev_init(struct rte_eth_dev *eth_dev __rte_unused)
> +dpaa2_dev_init(struct rte_eth_dev *eth_dev)
>  {
> +	struct rte_device *dev = eth_dev->device;
> +	struct rte_dpaa2_device *dpaa2_dev;
> +	struct fsl_mc_io *dpni_dev;
> +	struct dpaa2_dev_priv *priv = eth_dev->data->dev_private;
> +	int ret, hw_id;
> +
> +	PMD_INIT_FUNC_TRACE();
> +
> +	/* For secondary processes, the primary has done all the work */
> +	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
> +		return 0;
> +
> +	dpaa2_dev = container_of(dev, struct rte_dpaa2_device, device);
> +
> +	hw_id = dpaa2_dev->object_id;
> +
> +	dpni_dev = (struct fsl_mc_io *)malloc(sizeof(struct fsl_mc_io));
> +	if (!dpni_dev) {
> +		PMD_INIT_LOG(ERR, "malloc failed for dpni device\n");
> +		return -1;
> +	}
> +
> +	dpni_dev->regs = mcp_ptr_list[0];
> +	ret = dpni_open(dpni_dev, CMD_PRI_LOW, hw_id, &priv->token);
> +	if (ret) {
> +		PMD_INIT_LOG(ERR, "Failure in opening dpni@%d device with"
> +			" error code %d\n", hw_id, ret);
> +		return -1;
> +	}
> +
> +	/* Clean the device first */
> +	ret = dpni_reset(dpni_dev, CMD_PRI_LOW, priv->token);
> +	if (ret) {
> +		PMD_INIT_LOG(ERR, "Failure cleaning dpni@%d device with"
> +			" error code %d\n", hw_id, ret);
> +		return -1;
> +	}

Is rte_eth_copy_pci_info() equivalent something required here, to set
some default values?

> +
> +	priv->hw = dpni_dev;
> +	priv->hw_id = hw_id;
> +	eth_dev->dev_ops = &dpaa2_ethdev_ops;
>  	return 0;
>  }
>