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To: Ferruh Yigit <ferruh.yigit@intel.com>, <dev@dpdk.org>
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CC: <thomas.monjalon@6wind.com>, <bruce.richardson@intel.com>,
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From: Hemant Agrawal <hemant.agrawal@nxp.com>
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Date: Wed, 7 Dec 2016 12:27:38 +0530
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Subject: Re: [dpdk-dev] [PATCH 10/32] net/dpaa2: introducing dpaa2 bus
driver for fsl-mc bus
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On 12/7/2016 1:19 AM, Ferruh Yigit wrote:
> On 12/4/2016 6:17 PM, Hemant Agrawal wrote:
>> The DPAA2 bus driver is a rte_bus driver which scans the fsl-mc bus.
>>
>> Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
>> ---
>> drivers/net/Makefile | 2 +-
>> drivers/net/dpaa2/Makefile | 60 ++++++++++++++
>> drivers/net/dpaa2/dpaa2_bus.c | 99 +++++++++++++++++++++++
>> drivers/net/dpaa2/rte_dpaa2.h | 121 ++++++++++++++++++++++++++++
>> drivers/net/dpaa2/rte_pmd_dpaa2_version.map | 4 +
>> mk/rte.app.mk | 1 +
>> 6 files changed, 286 insertions(+), 1 deletion(-)
>> create mode 100644 drivers/net/dpaa2/Makefile
>> create mode 100644 drivers/net/dpaa2/dpaa2_bus.c
>> create mode 100644 drivers/net/dpaa2/rte_dpaa2.h
>> create mode 100644 drivers/net/dpaa2/rte_pmd_dpaa2_version.map
>>
>> diff --git a/drivers/net/Makefile b/drivers/net/Makefile
>> index bc93230..2bcf67b 100644
>> --- a/drivers/net/Makefile
>> +++ b/drivers/net/Makefile
>> @@ -55,7 +55,7 @@ DIRS-$(CONFIG_RTE_LIBRTE_THUNDERX_NICVF_PMD) += thunderx
>> DIRS-$(CONFIG_RTE_LIBRTE_VIRTIO_PMD) += virtio
>> DIRS-$(CONFIG_RTE_LIBRTE_VMXNET3_PMD) += vmxnet3
>> DIRS-$(CONFIG_RTE_LIBRTE_PMD_XENVIRT) += xenvirt
>> -
>> +DIRS-$(CONFIG_RTE_LIBRTE_DPAA2_PMD) += dpaa2
>
> Add as alphabetically sorted manner please.
>
>> ifeq ($(CONFIG_RTE_LIBRTE_VHOST),y)
>> DIRS-$(CONFIG_RTE_LIBRTE_PMD_VHOST) += vhost
>> endif # $(CONFIG_RTE_LIBRTE_VHOST)
>> diff --git a/drivers/net/dpaa2/Makefile b/drivers/net/dpaa2/Makefile
>> new file mode 100644
>> index 0000000..a99ce22
>> --- /dev/null
>> +++ b/drivers/net/dpaa2/Makefile
>> @@ -0,0 +1,60 @@
>> +# BSD LICENSE
>> +#
>> +# 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 NXP 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.
>> +
>> +include $(RTE_SDK)/mk/rte.vars.mk
>> +
>> +#
>> +# library name
>> +#
>> +LIB = librte_pmd_dpaa2.a
>> +
>> +CFLAGS += -O3
>> +CFLAGS += $(WERROR_FLAGS)
>> +
>> +CFLAGS += -I$(RTE_SDK)/drivers/net/dpaa2
>> +CFLAGS += -I$(RTE_SDK)/lib/librte_eal/common/
>> +CFLAGS += -I$(RTE_SDK)/lib/librte_eal/linuxapp/eal
>
> Last two shouldn't be required.
>
>> +
>> +# versioning export map
>> +EXPORT_MAP := rte_pmd_dpaa2_version.map
>> +
>> +# library version
>> +LIBABIVER := 1
>> +
>> +
>> +# Interfaces with DPDK
>> +SRCS-$(CONFIG_RTE_LIBRTE_DPAA2_PMD) += dpaa2_bus.c
>> +
>> +# library dependencies
>> +DEPDIRS-y += lib/librte_eal
>> +DEPDIRS-y += drivers/common/dpaa/mc
>> +DEPDIRS-y += drivers/common/dpaa/qbman
>
> Again for consistency, DEPDIRS-$(CONFIG_RTE_LIBRTE_DPAA2_PMD) +=
>
agree, will fix it in v2
>> +
>> +include $(RTE_SDK)/mk/rte.lib.mk
>> diff --git a/drivers/net/dpaa2/dpaa2_bus.c b/drivers/net/dpaa2/dpaa2_bus.c
>> new file mode 100644
>> index 0000000..571066c
>> --- /dev/null
>> +++ b/drivers/net/dpaa2/dpaa2_bus.c
>> @@ -0,0 +1,99 @@
>> +/*-
>> + * BSD LICENSE
>> + *
>> + * 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 NXP 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.
>> + */
>> +
>> +#include <string.h>
>> +#include <dirent.h>
>> +
>> +#include <rte_log.h>
>> +#include <rte_bus.h>
>> +#include <rte_dpaa2.h>
>> +#include <rte_eal_memconfig.h>
>> +#include <rte_malloc.h>
>> +#include <rte_devargs.h>
>> +#include <rte_memcpy.h>
>> +#include <rte_ethdev.h>
>> +
>> +#include "eal_filesystem.h"
>> +#include "eal_private.h"
>> +
>> +void
>> +rte_dpaa2_register(struct rte_dpaa2_driver *driver)
>> +{
>> + struct rte_bus *bus;
>> +
>> + bus = rte_eal_get_bus("dpaa2");
>> + if (!bus) {
>> + RTE_LOG(ERR, EAL, "DPAA2 bus not registered\n");
>> + return;
>> + }
>> +
>> + rte_eal_bus_add_driver(bus, &driver->driver);
>> +}
>> +
>> +void
>> +rte_dpaa2_unregister(struct rte_dpaa2_driver *driver)
>> +{
>> + struct rte_bus *bus;
>> +
>> + bus = driver->driver.bus;
>> + if (!bus) {
>> + RTE_LOG(ERR, EAL, "Unable to find bus for device\n");
>> + return;
>> + }
>> +
>> + rte_eal_bus_remove_driver(&driver->driver);
>> +}
>> +
>> +int rte_dpaa2_probe(struct rte_driver *driver __rte_unused,
>> + struct rte_device *device __rte_unused)
>> +{
>> + return 0;
>> +}
>> +
>> +int rte_dpaa2_scan(struct rte_bus *bus_d __rte_unused)
>> +{
>> + return 0;
>> +}
>> +
>> +int rte_dpaa2_match(struct rte_driver *driver __rte_unused,
>> + struct rte_device *device __rte_unused)
>> +{
>> + return 0;
>> +}
>> +
>> +struct rte_bus dpaa2_bus = {
>> + .scan = rte_dpaa2_scan,
>> + .match = rte_dpaa2_match,
>> + .probe = rte_dpaa2_probe,
>> +};
>> +
>> +RTE_REGISTER_BUS(dpaa2, dpaa2_bus);
>> diff --git a/drivers/net/dpaa2/rte_dpaa2.h b/drivers/net/dpaa2/rte_dpaa2.h
>> new file mode 100644
>> index 0000000..b36eed8
>> --- /dev/null
>> +++ b/drivers/net/dpaa2/rte_dpaa2.h
>> @@ -0,0 +1,121 @@
>> +/*-
>> + * BSD LICENSE
>> + *
>> + * 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 NXP 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 _RTE_DPAA2_H_
>> +#define _RTE_DPAA2_H_
>> +
>> +/**
>> + * @file
>> + *
>> + * RTE DPAA2 Interface
>> + */
>> +
>> +#ifdef __cplusplus
>> +extern "C" {
>> +#endif
>> +
>> +#include <stdio.h>
>> +#include <stdlib.h>
>> +#include <limits.h>
>> +#include <errno.h>
>> +#include <sys/queue.h>
>> +#include <stdint.h>
>> +#include <inttypes.h>
>> +
>> +#include <rte_debug.h>
>> +#include <rte_interrupts.h>
>> +#include <rte_dev.h>
>> +
>> +
>> +struct rte_dpaa2_driver;
>> +/**
>> + * A structure describing a DPAA2 device.
>> + */
>> +struct rte_dpaa2_device {
>> + TAILQ_ENTRY(rte_dpaa2_device) next; /**< Next probed DPAA2 device. */
>> + struct rte_device device; /**< Inherit core device */
>> + uint16_t dev_type; /**< Device Type */
>> + uint16_t object_id; /**< DPAA2 Object ID */
>> + struct rte_intr_handle intr_handle; /**< Interrupt handle */
>> + struct rte_dpaa2_driver *driver; /**< Associated driver */
>> +};
>> +
>> +/**
>> + * A structure describing a DPAA2 driver.
>> + */
>> +struct rte_dpaa2_driver {
>> + TAILQ_ENTRY(rte_dpaa2_driver) next; /**< Next in list. */
>> + struct rte_driver driver; /**< Inherit core driver. */
>> + uint32_t drv_flags; /**< Flags contolling handling of device. */
>> +};
>> +
>> +/**
>> + * Register a DPAA2 driver.
>> + *
>> + * @param driver
>> + * A pointer to a rte_dpaa2_driver structure describing the driver
>> + * to be registered.
>> + */
>> +void rte_dpaa2_register(struct rte_dpaa2_driver *driver);
>> +
>> +/**
>> + * Unregister a DPAA2 driver.
>> + *
>> + * @param driver
>> + * A pointer to a rte_dpaa2_driver structure describing the driver
>> + * to be unregistered.
>> + */
>> +void rte_dpaa2_unregister(struct rte_dpaa2_driver *driver);
>> +
>> +/**
>> + *
>> + */
>> +int rte_dpaa2_probe(struct rte_driver *driver, struct rte_device *device);
>> +int rte_dpaa2_match(struct rte_driver *driver, struct rte_device *device);
>> +int rte_dpaa2_scan(struct rte_bus *bus);
>
> Shouldn't these functions be static?
agree, will fix it in v2
>
>> +
>> +/** Helper for DPAA2 device registration from driver (eth, crypto) instance */
>> +#define RTE_PMD_REGISTER_DPAA2(nm, dpaa2_drv) \
>> +RTE_INIT(dpaa2initfn_ ##nm); \
>> +static void dpaa2initfn_ ##nm(void) \
>> +{\
>> + (dpaa2_drv).driver.name = RTE_STR(nm);\
>> + rte_dpaa2_register(&dpaa2_drv); \
>> +} \
>> +RTE_PMD_EXPORT_NAME(nm, __COUNTER__)
>> +
>> +
>> +#ifdef __cplusplus
>> +}
>> +#endif
>> +
>> +#endif /* _RTE_DPAA2_H_ */
>> diff --git a/drivers/net/dpaa2/rte_pmd_dpaa2_version.map b/drivers/net/dpaa2/rte_pmd_dpaa2_version.map
>> new file mode 100644
>> index 0000000..31eca32
>> --- /dev/null
>> +++ b/drivers/net/dpaa2/rte_pmd_dpaa2_version.map
>> @@ -0,0 +1,4 @@
>> +DPDK_17.02 {
>> +
>> + local: *;
>> +};
>> diff --git a/mk/rte.app.mk b/mk/rte.app.mk
>> index f75f0e2..9e1c17c 100644
>> --- a/mk/rte.app.mk
>> +++ b/mk/rte.app.mk
>> @@ -101,6 +101,7 @@ _LDLIBS-$(CONFIG_RTE_LIBRTE_CFGFILE) += -lrte_cfgfile
>>
>> _LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_BOND) += -lrte_pmd_bond
>> _LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_XENVIRT) += -lrte_pmd_xenvirt -lxenstore
>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_DPAA2_PMD) += -lrte_pmd_dpaa2 -ldpaa2_mc -ldpaa2_qbman
>
> This should go within no shared library case (below), in a sorted manner
> please.
>
ok, will fix it in v2
> btw, for shared compilation, PMDs loaded dynamically, as plugins. For
> dpaa case, there will be multiple libraries, not if it will work with
> multiple -d params for each lib, it worth testing.
>
I will look into it.
>>
>> ifeq ($(CONFIG_RTE_BUILD_SHARED_LIB),n)
>> # plugins (link only if static libraries)
>>
>
>