Re: [PATCH 02/10] crypto/caam_jr: introduce basic driver

[Akhil Goyal <akhil.goyal@nxp.com>]

Hi Gagan,

On 9/13/2018 11:38 AM, Gagandeep Singh wrote:

> From: Hemant Agrawal <hemant.agrawal@nxp.com>
>
> This patch introduces basic support for caam_jr crypto driver.
>
> Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
> Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
> ---
>   config/common_base                            |   8 +
>   config/common_linuxapp                        |   1 +
>   config/defconfig_arm64-dpaa-linuxapp-gcc      |   4 +
>   drivers/crypto/Makefile                       |   1 +
>   drivers/crypto/caam_jr/Makefile               |  40 +++++
>   drivers/crypto/caam_jr/caam_jr.c              | 157 ++++++++++++++++++
>   drivers/crypto/caam_jr/caam_jr_log.h          |  42 +++++
>   drivers/crypto/caam_jr/meson.build            |  11 ++
>   .../caam_jr/rte_pmd_caam_jr_version.map       |   4 +
>   drivers/crypto/meson.build                    |   2 +-
>   10 files changed, 269 insertions(+), 1 deletion(-)
>   create mode 100644 drivers/crypto/caam_jr/Makefile
>   create mode 100644 drivers/crypto/caam_jr/caam_jr.c
>   create mode 100644 drivers/crypto/caam_jr/caam_jr_log.h
>   create mode 100644 drivers/crypto/caam_jr/meson.build
>   create mode 100644 drivers/crypto/caam_jr/rte_pmd_caam_jr_version.map
>
> diff --git a/config/common_base b/config/common_base
> index 4bcbaf923..a73f063d1 100644
> --- a/config/common_base
> +++ b/config/common_base
> @@ -479,6 +479,14 @@ CONFIG_RTE_CRYPTO_MAX_DEVS=64
>   CONFIG_RTE_LIBRTE_PMD_ARMV8_CRYPTO=n
>   CONFIG_RTE_LIBRTE_PMD_ARMV8_CRYPTO_DEBUG=n
>   
> +#
> +# Compile NXP CAAM JR crypto Driver
> +#
> +CONFIG_RTE_LIBRTE_PMD_CAAM_JR=n
> +CONFIG_RTE_LIBRTE_PMD_CAAM_JR_BE=n
> +CONFIG_RTE_LIBRTE_PMD_CAAM_JR_DEBUG=n

Do you really need DEBUG?

> +CONFIG_RTE_CAAM_JR_PMD_MAX_NB_SESSIONS=2048

MAX_NB_SESSIONS is no more used in any of the drivers.

Do you have a limitation in your hardware?

> +
>   #
>   # Compile NXP DPAA2 crypto sec driver for CAAM HW
>   #
> diff --git a/config/common_linuxapp b/config/common_linuxapp
> index 9c5ea9d89..c1c7c4287 100644
> --- a/config/common_linuxapp
> +++ b/config/common_linuxapp
> @@ -35,6 +35,7 @@ CONFIG_RTE_LIBRTE_DPAA_MEMPOOL=y
>   CONFIG_RTE_LIBRTE_DPAA_PMD=y
>   CONFIG_RTE_LIBRTE_PMD_DPAA_EVENTDEV=y
>   CONFIG_RTE_LIBRTE_PMD_DPAA_SEC=y
> +CONFIG_RTE_LIBRTE_PMD_CAAM_JR=y
>   
>   # NXP FSLMC BUS and DPAA2 drivers
>   CONFIG_RTE_LIBRTE_FSLMC_BUS=y
> diff --git a/config/defconfig_arm64-dpaa-linuxapp-gcc b/config/defconfig_arm64-dpaa-linuxapp-gcc
> index c47aec0a6..e5343f7a9 100644
> --- a/config/defconfig_arm64-dpaa-linuxapp-gcc
> +++ b/config/defconfig_arm64-dpaa-linuxapp-gcc
> @@ -21,3 +21,7 @@ CONFIG_RTE_PKTMBUF_HEADROOM=128
>   # NXP DPAA Bus
>   CONFIG_RTE_LIBRTE_DPAA_DEBUG_DRIVER=n
>   CONFIG_RTE_LIBRTE_DPAA_HWDEBUG=n
> +
> +# NXP CAAM_JR driver
> +CONFIG_RTE_LIBRTE_PMD_CAAM_JR=y
> +CONFIG_RTE_LIBRTE_PMD_CAAM_JR_BE=y
> diff --git a/drivers/crypto/Makefile b/drivers/crypto/Makefile
> index c480cbd37..e3711d703 100644
> --- a/drivers/crypto/Makefile
> +++ b/drivers/crypto/Makefile
> @@ -6,6 +6,7 @@ include $(RTE_SDK)/mk/rte.vars.mk
>   DIRS-$(CONFIG_RTE_LIBRTE_PMD_AESNI_GCM) += aesni_gcm
>   DIRS-$(CONFIG_RTE_LIBRTE_PMD_AESNI_MB) += aesni_mb
>   DIRS-$(CONFIG_RTE_LIBRTE_PMD_ARMV8_CRYPTO) += armv8
> +DIRS-$(CONFIG_RTE_LIBRTE_PMD_CAAM_JR) += caam_jr
>   DIRS-$(CONFIG_RTE_LIBRTE_PMD_CCP) += ccp
>   DIRS-$(CONFIG_RTE_LIBRTE_PMD_OPENSSL) += openssl
>   DIRS-$(CONFIG_RTE_LIBRTE_PMD_CRYPTO_SCHEDULER) += scheduler
> diff --git a/drivers/crypto/caam_jr/Makefile b/drivers/crypto/caam_jr/Makefile
> new file mode 100644
> index 000000000..46d752af7
> --- /dev/null
> +++ b/drivers/crypto/caam_jr/Makefile
> @@ -0,0 +1,40 @@
> +# SPDX-License-Identifier: BSD-3-Clause
> +# Copyright 2017 NXP
> +
> +include $(RTE_SDK)/mk/rte.vars.mk
> +
> +#
> +# library name
> +#
> +LIB = librte_pmd_caam_jr.a
> +
> +# build flags
> +CFLAGS += -DALLOW_EXPERIMENTAL_API
> +CFLAGS += -D _GNU_SOURCE
> +ifeq ($(CONFIG_RTE_LIBRTE_CAAM_JR_DEBUG),y)
> +CFLAGS += -O0 -g
> +CFLAGS += "-Wno-error"
> +else
> +CFLAGS += -O3
> +CFLAGS += $(WERROR_FLAGS)
> +endif
> +
> +CFLAGS += -I$(RTE_SDK)/drivers/crypto/caam_jr
> +CFLAGS += -I$(RTE_SDK)/lib/librte_eal/common/include
> +CFLAGS += -I$(RTE_SDK)/lib/librte_eal/linuxapp/eal
> +
> +# versioning export map
> +EXPORT_MAP := rte_pmd_caam_jr_version.map
> +
> +# library version
> +LIBABIVER := 1
> +
> +# library source files
> +SRCS-$(CONFIG_RTE_LIBRTE_PMD_CAAM_JR) += caam_jr.c
> +# library dependencies
> +
> +LDLIBS += -lrte_eal -lrte_mbuf -lrte_mempool -lrte_ring
> +LDLIBS += -lrte_cryptodev
> +LDLIBS += -lrte_bus_vdev
> +
> +include $(RTE_SDK)/mk/rte.lib.mk
> diff --git a/drivers/crypto/caam_jr/caam_jr.c b/drivers/crypto/caam_jr/caam_jr.c
> new file mode 100644
> index 000000000..68779cba5
> --- /dev/null
> +++ b/drivers/crypto/caam_jr/caam_jr.c
> @@ -0,0 +1,157 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright 2017-2018 NXP
> + */
> +
> +#include <fcntl.h>
> +#include <unistd.h>
> +#include <sched.h>
> +#include <net/if.h>
> +
> +#include <rte_byteorder.h>
> +#include <rte_common.h>
> +#include <rte_cryptodev_pmd.h>
> +#include <rte_crypto.h>
> +#include <rte_cryptodev.h>
> +#include <rte_bus_vdev.h>
> +#include <rte_malloc.h>
> +#include <rte_security_driver.h>
> +#include <rte_hexdump.h>
> +
> +#include <caam_jr_log.h>
> +
> +#define CRYPTODEV_NAME_CAAM_JR_PMD	crypto_caam_jr
> +static uint8_t cryptodev_driver_id;
> +int caam_jr_logtype;
> +
> +
> +/*
> + * @brief Release the resources used by the SEC user space driver.
> + *
> + * Reset and release SEC's job rings indicated by the User Application at
> + * init_job_ring() and free any memory allocated internally.
> + * Call once during application tear down.
> + *
> + * @note In case there are any descriptors in-flight (descriptors received by
> + * SEC driver for processing and for which no response was yet provided to UA),
> + * the descriptors are discarded without any notifications to User Application.
> + *
> + * @retval ::0			is returned for a successful execution
> + * @retval ::-1		is returned if SEC driver release is in progress
> + */
> +
> +static int
> +caam_jr_dev_uninit(struct rte_cryptodev *dev)
> +{
> +
> +	if (dev == NULL)
> +		return -ENODEV;
> +
> +
> +	CAAM_JR_INFO("Closing DPAA_SEC device %s", dev->data->name);
> +
> +
> +	return 0;
> +}

remove extra spacing.

> +
> +static int
> +caam_jr_dev_init(const char *name,
> +			 struct rte_vdev_device *vdev,
> +			 struct rte_cryptodev_pmd_init_params *init_params)
> +{
> +	struct rte_cryptodev *dev;
> +
> +	PMD_INIT_FUNC_TRACE();
> +
> +	dev = rte_cryptodev_pmd_create(name, &vdev->device, init_params);
> +	if (dev == NULL) {
> +		CAAM_JR_ERR("failed to create cryptodev vdev");
> +		goto cleanup;
> +	}
> +
> +	dev->driver_id = cryptodev_driver_id;
> +	dev->dev_ops = NULL;
> +
> +	/* For secondary processes, we don't initialise any further as primary
> +	 * has already done this work. Only check we don't need a different
> +	 * RX function
> +	 */
> +	if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
> +		CAAM_JR_WARN("Device already init by primary process");
> +		return 0;
> +	}
> +
> +	RTE_LOG(INFO, PMD, "%s cryptodev init\n", dev->data->name);
> +
> +	return 0;
> +
> +cleanup:
> +	CAAM_JR_ERR("driver %s: cryptodev_caam_jr_create failed",
> +			init_params->name);
> +
> +	return -ENXIO;
> +}
> +
> +/** Initialise CAAM JR crypto device */
> +static int
> +cryptodev_caam_jr_probe(struct rte_vdev_device *vdev)
> +{
> +	struct rte_cryptodev_pmd_init_params init_params = {
> +		"",
> +		128,
> +		rte_socket_id(),
> +		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS
> +	};
> +	const char *name;
> +	const char *input_args;
> +
> +	name = rte_vdev_device_name(vdev);
> +	if (name == NULL)
> +		return -EINVAL;
> +
> +	input_args = rte_vdev_device_args(vdev);
> +	rte_cryptodev_pmd_parse_input_args(&init_params, input_args);
> +
> +	return caam_jr_dev_init(name, vdev, &init_params);
> +}
> +
> +/** Uninitialise CAAM JR crypto device */
> +static int
> +cryptodev_caam_jr_remove(struct rte_vdev_device *vdev)
> +{
> +	struct rte_cryptodev *cryptodev;
> +	const char *name;
> +
> +	name = rte_vdev_device_name(vdev);
> +	if (name == NULL)
> +		return -EINVAL;
> +
> +	cryptodev = rte_cryptodev_pmd_get_named_dev(name);
> +	if (cryptodev == NULL)
> +		return -ENODEV;
> +
> +	caam_jr_dev_uninit(cryptodev);
> +
> +	return rte_cryptodev_pmd_destroy(cryptodev);
> +}
> +
> +static struct rte_vdev_driver cryptodev_caam_jr_drv = {
> +	.probe = cryptodev_caam_jr_probe,
> +	.remove = cryptodev_caam_jr_remove
> +};
> +
> +static struct cryptodev_driver caam_jr_crypto_drv;
> +
> +RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_CAAM_JR_PMD, cryptodev_caam_jr_drv);
> +RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_CAAM_JR_PMD,
> +	"max_nb_queue_pairs=<int>"
> +	"max_nb_sessions=<int>"

max_nb_sessions may not be needed

> +	"socket_id=<int>");
> +RTE_PMD_REGISTER_CRYPTO_DRIVER(caam_jr_crypto_drv, cryptodev_caam_jr_drv.driver,
> +		cryptodev_driver_id);
> +
> +RTE_INIT(caam_jr_init_log)
> +{
> +	caam_jr_logtype = rte_log_register("pmd.crypto.caam");
> +	if (caam_jr_logtype >= 0)
> +		rte_log_set_level(caam_jr_logtype, RTE_LOG_NOTICE);
> +}