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From: Ori Kam <orika@mellanox.com>
To: jerinj@marvell.com, xiang.w.wang@intel.com
Cc: dev@dpdk.org, pbhagavatula@marvell.com, shahafs@mellanox.com,
	hemant.agrawal@nxp.com, opher@mellanox.com, alexr@mellanox.com,
	dovrat@marvell.com, pkapoor@marvell.com, nipun.gupta@nxp.com,
	bruce.richardson@intel.com, yang.a.hong@intel.com,
	harry.chang@intel.com, gu.jian1@zte.com.cn,
	shanjiangh@chinatelecom.cn, zhangy.yun@chinatelecom.cn,
	lixingfu@huachentel.com, wushuai@inspur.com,
	yuyingxia@yxlink.com, fanchenggang@sunyainfo.com,
	davidfgao@tencent.com, liuzhong1@chinaunicom.cn,
	zhaoyong11@huawei.com, oc@yunify.com, jim@netgate.com,
	hongjun.ni@intel.com, j.bromhead@titan-ic.com, deri@ntop.org,
	fc@napatech.com, arthur.su@lionic.com, thomas@monjalon.net,
	orika@mellanox.com, Parav Pandit <parav@mellanox.com>
Subject: [dpdk-dev] [PATCH v2 3/4] regexdev: add regexdev core functions
Date: Fri, 17 Apr 2020 12:43:36 +0000
Message-ID: <1587127417-82492-4-git-send-email-orika@mellanox.com> (raw)
In-Reply-To: <1587127417-82492-1-git-send-email-orika@mellanox.com>

This commit introduce the API that is needed by the RegEx devices in
order to work with the RegEX lib.

During the probe of a RegEx device, the device should configure itself,
and allocate the resources it requires.
On completion of the device init, it should call the
rte_regex_dev_register in order to register itself as a RegEx device.

Signed-off-by: Ori Kam <orika@mellanox.com>
Signed-off-by: Parav Pandit <parav@mellanox.com>
---
v2:
* Changes resulted from previous patch update.
---
 config/common_base                        |   3 +-
 config/meson.build                        |   1 +
 lib/librte_regexdev/Makefile              |   1 +
 lib/librte_regexdev/meson.build           |   5 +-
 lib/librte_regexdev/rte_regexdev.c        | 115 +++++++++++++++++++++++++++++-
 lib/librte_regexdev/rte_regexdev.h        |   7 ++
 lib/librte_regexdev/rte_regexdev_core.h   |  16 ++++-
 lib/librte_regexdev/rte_regexdev_driver.h |  50 +++++++++++++
 meson_options.txt                         |   2 +
 9 files changed, 196 insertions(+), 4 deletions(-)
 create mode 100644 lib/librte_regexdev/rte_regexdev_driver.h

diff --git a/config/common_base b/config/common_base
index 0fc450f..005cb11 100644
--- a/config/common_base
+++ b/config/common_base
@@ -826,9 +826,10 @@ CONFIG_RTE_LIBRTE_PMD_OCTEONTX2_EP_RAWDEV=y
 CONFIG_RTE_LIBRTE_PMD_NTB_RAWDEV=y
 
 #
-# Compile regex device support
+# Compile RexEx device support
 #
 CONFIG_RTE_LIBRTE_REGEXDEV=y
+CONFIG_RTE_MAX_REGEXDEV_DEVS=32
 
 #
 # Compile librte_ring
diff --git a/config/meson.build b/config/meson.build
index 5842134..16dfa74 100644
--- a/config/meson.build
+++ b/config/meson.build
@@ -221,6 +221,7 @@ endforeach
 dpdk_conf.set('RTE_MAX_LCORE', get_option('max_lcores'))
 dpdk_conf.set('RTE_MAX_NUMA_NODES', get_option('max_numa_nodes'))
 dpdk_conf.set('RTE_MAX_ETHPORTS', get_option('max_ethports'))
+dpdk_conf.set('RTE_MAX_REGEXDEV_DEVS', get_option('max_regexdev_devs'))
 dpdk_conf.set('RTE_LIBEAL_USE_HPET', get_option('use_hpet'))
 # values which have defaults which may be overridden
 dpdk_conf.set('RTE_MAX_VFIO_GROUPS', 64)
diff --git a/lib/librte_regexdev/Makefile b/lib/librte_regexdev/Makefile
index 9012d29..6ba09f0 100644
--- a/lib/librte_regexdev/Makefile
+++ b/lib/librte_regexdev/Makefile
@@ -25,6 +25,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_REGEXDEV) := rte_regexdev.c
 # export include files
 SYMLINK-$(CONFIG_RTE_LIBRTE_REGEXDEV)-include += rte_regexdev.h
 SYMLINK-$(CONFIG_RTE_LIBRTE_REGEXDEV)-include += rte_regexdev_core.h
+SYMLINK-$(CONFIG_RTE_LIBRTE_REGEXDEV)-include += rte_regexdev_driver.h
 
 # versioning export map
 EXPORT_MAP := rte_regexdev_version.map
diff --git a/lib/librte_regexdev/meson.build b/lib/librte_regexdev/meson.build
index 1816754..719ee82 100644
--- a/lib/librte_regexdev/meson.build
+++ b/lib/librte_regexdev/meson.build
@@ -1,7 +1,10 @@
 # SPDX-License-Identifier: BSD-3-Clause
 # Copyright(c) 2020 Mellanox Corporation
 
+name = 'regexdev'
 allow_experimental_apis = true
 sources = files('rte_regexdev.c')
-headers = files('rte_regexdev.h', 'rte_regexdev_core.h')
+headers = files('rte_regexdev.h',
+	'rte_regexdev_core.h',
+	'rte_regexdev_driver.h')
 deps += ['mbuf']
diff --git a/lib/librte_regexdev/rte_regexdev.c b/lib/librte_regexdev/rte_regexdev.c
index b901877..10adc54 100644
--- a/lib/librte_regexdev/rte_regexdev.c
+++ b/lib/librte_regexdev/rte_regexdev.c
@@ -3,4 +3,117 @@
  * Copyright(C) 2020 Mellanox International Ltd.
  */
 
-#include <rte_regexdev.h>
+#include <string.h>
+
+#include <rte_memory.h>
+#include <rte_memcpy.h>
+#include <rte_memzone.h>
+#include <rte_string_fns.h>
+
+#include "rte_regexdev.h"
+#include "rte_regexdev_core.h"
+#include "rte_regexdev_driver.h"
+
+static const char *MZ_RTE_REGEXDEV_DATA = "rte_regexdev_data";
+static struct rte_regexdev regex_devices[RTE_MAX_REGEXDEV_DEVS];
+/* Shared memory between primary and secondary processes. */
+static struct {
+	struct rte_regexdev_data data[RTE_MAX_REGEXDEV_DEVS];
+} *rte_regexdev_shared_data;
+
+int rte_regexdev_logtype;
+
+static uint16_t
+regexdev_find_free_dev(void)
+{
+	uint16_t i;
+
+	for (i = 0; i < RTE_MAX_REGEXDEV_DEVS; i++) {
+		if (regex_devices[i].state == RTE_REGEXDEV_UNUSED)
+			return i;
+	}
+	return RTE_MAX_REGEXDEV_DEVS;
+}
+
+static struct rte_regexdev*
+regexdev_allocated(const char *name)
+{
+	uint16_t i;
+
+	for (i = 0; i < RTE_MAX_REGEXDEV_DEVS; i++) {
+		if (regex_devices[i].state != RTE_REGEXDEV_UNUSED)
+			if (!strcmp(name, regex_devices[i].data->dev_name))
+				return &regex_devices[i];
+	}
+	return NULL;
+}
+
+static int
+regexdev_shared_data_prepare(void)
+{
+	const unsigned int flags = 0;
+	const struct rte_memzone *mz;
+
+	if (rte_regexdev_shared_data == NULL) {
+		/* Allocate port data and ownership shared memory. */
+		mz = rte_memzone_reserve(MZ_RTE_REGEXDEV_DATA,
+					 sizeof(*rte_regexdev_shared_data),
+					 rte_socket_id(), flags);
+		if (mz == NULL)
+			return -ENOMEM;
+
+		rte_regexdev_shared_data = mz->addr;
+		memset(rte_regexdev_shared_data->data, 0,
+		       sizeof(rte_regexdev_shared_data->data));
+	}
+	return 0;
+}
+
+struct rte_regexdev *
+rte_regexdev_register(const char *name)
+{
+	uint16_t dev_id;
+	size_t name_len;
+	struct rte_regexdev *dev;
+
+	name_len = strnlen(name, RTE_REGEXDEV_NAME_MAX_LEN);
+	if (name_len == 0) {
+		RTE_REGEXDEV_LOG(ERR, "Zero length RegEx device name\n");
+		return NULL;
+	}
+	if (name_len >= RTE_REGEXDEV_NAME_MAX_LEN) {
+		RTE_REGEXDEV_LOG(ERR, "RegEx device name is too long\n");
+		return NULL;
+	}
+	dev = regexdev_allocated(name);
+	if (dev != NULL) {
+		RTE_REGEXDEV_LOG(ERR, "RegEx device already allocated\n");
+		return NULL;
+	}
+	dev_id = regexdev_find_free_dev();
+	if (dev_id == RTE_MAX_REGEXDEV_DEVS) {
+		RTE_REGEXDEV_LOG
+			(ERR, "Reached maximum number of RegEx devices\n");
+		return NULL;
+	}
+	if (regexdev_shared_data_prepare() < 0) {
+		RTE_REGEXDEV_LOG(ERR, "Cannot allocate RegEx shared data\n");
+		return NULL;
+	}
+
+	dev = &regex_devices[dev_id];
+	dev->state = RTE_REGEXDEV_REGISTERED;
+	if (dev->data == NULL)
+		dev->data = &rte_regexdev_shared_data->data[dev_id];
+	else
+		memset(dev->data, 1, sizeof(*dev->data));
+	dev->data->dev_id = dev_id;
+	strlcpy(dev->data->dev_name, name, sizeof(dev->data->dev_name));
+	return dev;
+}
+
+void
+rte_regexdev_unregister(struct rte_regexdev *dev)
+{
+	dev->state = RTE_REGEXDEV_UNUSED;
+}
diff --git a/lib/librte_regexdev/rte_regexdev.h b/lib/librte_regexdev/rte_regexdev.h
index bbc56f9..1e1ba8b 100644
--- a/lib/librte_regexdev/rte_regexdev.h
+++ b/lib/librte_regexdev/rte_regexdev.h
@@ -206,6 +206,13 @@
 #include <rte_mbuf.h>
 #include <rte_memory.h>
 
+#define RTE_REGEXDEV_NAME_MAX_LEN RTE_DEV_NAME_MAX_LEN
+
+extern int rte_regexdev_logtype;
+
+#define RTE_REGEXDEV_LOG(level, ...) \
+	rte_log(RTE_LOG_ ## level, rte_regexdev_logtype, "" __VA_ARGS__)
+
 /**
  * @warning
  * @b EXPERIMENTAL: this API may change without prior notice.
diff --git a/lib/librte_regexdev/rte_regexdev_core.h b/lib/librte_regexdev/rte_regexdev_core.h
index fb7a27e..baded23 100644
--- a/lib/librte_regexdev/rte_regexdev_core.h
+++ b/lib/librte_regexdev/rte_regexdev_core.h
@@ -126,7 +126,18 @@ struct rte_regexdev_ops {
 	regexdev_dump_t dev_dump;
 };
 
-#define RTE_REGEXDEV_NAME_MAX_LEN
+/**
+ * @internal
+ * Possible states of a RegEx device.
+ */
+enum rte_regexdev_state {
+	RTE_REGEXDEV_UNUSED = 0, /**< Device is unused. */
+	RTE_REGEXDEV_REGISTERED,
+	/**< Device is registered, but not ready to be used. */
+	RTE_REGEXDEV_READY,
+	/**< Device is ready for use. This is set by the PMD. */
+};
+
 /**
  * @internal
  * The data part, with no function pointers, associated with each RegEx device.
@@ -136,6 +147,8 @@ struct rte_regexdev_ops {
  */
 struct rte_regexdev_data {
 	void *dev_private; /**< PMD-specific private data. */
+	char dev_name[RTE_REGEXDEV_NAME_MAX_LEN]; /**< Unique identifier name */
+	uint16_t dev_id; /**< Device [external]  identifier. */
 } __rte_cache_aligned;
 
 /**
@@ -154,6 +167,7 @@ struct rte_regexdev {
 	const struct rte_regexdev_ops *dev_ops;
 	/**< Functions exported by PMD */
 	struct rte_device *device; /**< Backing device */
+	enum rte_regexdev_state state; /**< The device state. */
 	struct rte_regexdev_data *data;  /**< Pointer to device data. */
 } __rte_cache_aligned;
 
diff --git a/lib/librte_regexdev/rte_regexdev_driver.h b/lib/librte_regexdev/rte_regexdev_driver.h
new file mode 100644
index 0000000..6a510d2
--- /dev/null
+++ b/lib/librte_regexdev/rte_regexdev_driver.h
@@ -0,0 +1,50 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2020 Mellanox Corporation
+ */
+
+#ifndef _RTE_REGEXDEV_DRIVER_H_
+#define _RTE_REGEXDEV_DRIVER_H_
+
+/**
+ * @file
+ *
+ * RTE RegEx Device PMD API
+ *
+ * APIs that are used by the RegEx drivers, to comunicate with the
+ * RegEx lib.
+ */
+
+#include "rte_regexdev.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @internal
+ * Register a RegEx device slot for a RegEx device and return the
+ * pointer to that slot.
+ *
+ * @param name
+ *   RegEx device name.
+ *
+ * @return
+ *   A pointer to the RegEx device slot case of success,
+ *   NULL otherwise.
+ */
+struct rte_regexdev *rte_regexdev_register(const char *name);
+
+/**
+ * @internal
+ * Unregister the specified regexdev port.
+ *
+ * @param dev
+ *   Device to be released.
+ */
+void rte_regexdev_unregister(struct rte_regexdev *dev);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_REGEXDEV_DRIVER_H_ */
diff --git a/meson_options.txt b/meson_options.txt
index 9e4923a..7e54d8a 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -30,6 +30,8 @@ option('max_lcores', type: 'integer', value: 128,
 	description: 'maximum number of cores/threads supported by EAL')
 option('max_numa_nodes', type: 'integer', value: 4,
 	description: 'maximum number of NUMA nodes supported by EAL')
+option('max_regexdev_devs', type: 'integer', value: 32,
+	description: 'maximum number of RegEx devices')
 option('tests', type: 'boolean', value: true,
 	description: 'build unit tests')
 option('use_hpet', type: 'boolean', value: false,
-- 
1.8.3.1


  parent reply	other threads:[~2020-04-17 12:44 UTC|newest]

Thread overview: 96+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-29  6:47 [dpdk-dev] [PATCH v1 0/4] add RegEx class Ori Kam
2020-03-29  6:47 ` [dpdk-dev] [PATCH v1 1/4] regexdev: introduce regexdev subsystem Ori Kam
2020-04-04 15:04   ` [dpdk-dev] [EXT] " Pavan Nikhilesh Bhagavatula
2020-04-05 15:03     ` Ori Kam
2020-03-29  6:47 ` [dpdk-dev] [PATCH v1 2/4] regexdev: add regex core h file Ori Kam
     [not found]   ` <DM5PR18MB221411AAEAFFA9D9F373292BC6C20@DM5PR18MB2214.namprd18.prod.outlook.com>
2020-04-07  8:53     ` Guy Kaneti
2020-04-07 16:16       ` Ori Kam
2020-04-07 16:27         ` Jerin Jacob
2020-04-08  7:37           ` Ori Kam
2020-04-08  7:48             ` Jerin Jacob
2020-04-08  8:31               ` Ori Kam
2020-04-08  8:38                 ` Jerin Jacob
2020-04-08  9:51                   ` Ori Kam
2020-03-29  6:47 ` [dpdk-dev] [PATCH v1 3/4] regexdev: add regexdev core functions Ori Kam
2020-04-04 15:01   ` [dpdk-dev] [EXT] " Pavan Nikhilesh Bhagavatula
2020-04-05 15:05     ` Ori Kam
2020-04-05 17:10       ` Pavan Nikhilesh Bhagavatula
2020-04-05 20:02         ` Ori Kam
2020-04-06 12:48           ` Pavan Nikhilesh Bhagavatula
2020-04-06 13:29             ` Thomas Monjalon
2020-04-06 13:38               ` Jerin Jacob
2020-04-06 19:11                 ` Ori Kam
2020-04-07  5:49                   ` Jerin Jacob
2020-04-07  6:46                     ` Ori Kam
2020-04-07  7:22                       ` Jerin Jacob
2020-04-07 12:27                     ` Thomas Monjalon
2020-04-07 12:54                       ` Jerin Jacob
2020-04-07 14:21                   ` Guy Kaneti
2020-04-07 16:28                     ` Ori Kam
2020-04-07 16:37                       ` Guy Kaneti
2020-04-08  6:52                         ` Ori Kam
2020-04-08  8:39               ` Ori Kam
2020-04-19 10:38                 ` Guy Kaneti
2020-04-22 21:36                   ` Ori Kam
2020-04-08  9:41             ` Ori Kam
2020-03-29  6:47 ` [dpdk-dev] [PATCH v1 4/4] regexdev: implement regex rte level functions Ori Kam
2020-04-04 14:27   ` [dpdk-dev] [EXT] " Pavan Nikhilesh Bhagavatula
2020-04-05 15:04     ` Ori Kam
2020-04-05 16:48       ` Pavan Nikhilesh Bhagavatula
2020-04-05 19:46         ` Ori Kam
2020-04-06 11:16       ` Thomas Monjalon
2020-04-06 12:33         ` Pavan Nikhilesh Bhagavatula
2020-04-06 13:14           ` Thomas Monjalon
2020-04-06 13:20             ` Jerin Jacob
2020-04-06 13:22             ` Pavan Nikhilesh Bhagavatula
2020-04-06 13:36               ` Thomas Monjalon
2020-04-06 13:50                 ` Pavan Nikhilesh Bhagavatula
2020-04-06 14:00                   ` Thomas Monjalon
2020-04-06 18:53                     ` Ori Kam
2020-04-04 13:06 ` [dpdk-dev] [EXT] [PATCH v1 0/4] add RegEx class Pavan Nikhilesh Bhagavatula
2020-04-05 15:03   ` Ori Kam
2020-04-17 12:43 ` [dpdk-dev] [PATCH v2 " Ori Kam
2020-04-17 12:43   ` [dpdk-dev] [PATCH v2 1/4] regexdev: introduce regexdev subsystem Ori Kam
2020-04-17 12:43   ` [dpdk-dev] [PATCH v2 2/4] regexdev: add regex core h file Ori Kam
2020-04-20 10:48     ` Guy Kaneti
2020-04-20 15:49       ` Ori Kam
2020-04-17 12:43   ` Ori Kam [this message]
2020-04-17 12:43   ` [dpdk-dev] [PATCH v2 4/4] regexdev: implement regex rte level functions Ori Kam
2020-04-21 11:12     ` Guy Kaneti
2020-04-21 11:20       ` Ori Kam
2020-04-21 11:36     ` Guy Kaneti
2020-04-22 20:33       ` Ori Kam
2020-05-07  9:45 ` [dpdk-dev] [PATCH v3 0/4] add RegEx class Ori Kam
2020-05-07  9:45   ` [dpdk-dev] [PATCH v3 1/4] regexdev: introduce regexdev subsystem Ori Kam
2020-06-21 11:18     ` Ori Kam
2020-06-30 19:57       ` Ori Kam
2020-05-07  9:45   ` [dpdk-dev] [PATCH v3 2/4] regexdev: add regex core h file Ori Kam
2020-06-03  6:47     ` [dpdk-dev] [EXT] " Guy Kaneti
2020-05-07  9:45   ` [dpdk-dev] [PATCH v3 3/4] regexdev: add regexdev core functions Ori Kam
2020-06-03  6:57     ` [dpdk-dev] [EXT] " Guy Kaneti
2020-05-07  9:45   ` [dpdk-dev] [PATCH v3 4/4] regexdev: implement regex rte level functions Ori Kam
2020-06-03  6:59     ` [dpdk-dev] [EXT] " Guy Kaneti
2020-06-28 13:45     ` Guy Kaneti
2020-06-28 14:10       ` Ori Kam
2020-05-24 20:24   ` [dpdk-dev] [PATCH v3 0/4] add RegEx class Ori Kam
2020-07-02  7:45 ` [dpdk-dev] [PATCH v4 " Ori Kam
2020-07-02  7:46   ` [dpdk-dev] [PATCH v4 1/4] regexdev: introduce regexdev subsystem Ori Kam
2020-07-05 21:18     ` Thomas Monjalon
2020-07-06  7:02       ` Ori Kam
2020-07-02  7:46   ` [dpdk-dev] [PATCH v4 2/4] regexdev: add regex core h file Ori Kam
2020-07-02  7:46   ` [dpdk-dev] [PATCH v4 3/4] regexdev: add regexdev core functions Ori Kam
2020-07-05 21:08     ` Thomas Monjalon
2020-07-06  6:07       ` Ori Kam
2020-07-06  7:03         ` Thomas Monjalon
2020-07-06  8:00           ` Bruce Richardson
2020-07-02  7:46   ` [dpdk-dev] [PATCH v4 4/4] regexdev: implement regex rte level functions Ori Kam
2020-07-05 21:21   ` [dpdk-dev] [PATCH v4 0/4] add RegEx class Thomas Monjalon
2020-07-06  7:03     ` Ori Kam
2020-07-06 17:36 ` [dpdk-dev] [PATCH v5 " Ori Kam
2020-07-06 17:36   ` [dpdk-dev] [PATCH v5 1/4] regexdev: introduce regexdev subsystem Ori Kam
2020-07-06 19:38     ` Thomas Monjalon
2020-09-11 12:46     ` David Marchand
2020-07-06 17:36   ` [dpdk-dev] [PATCH v5 2/4] regexdev: add regex core h file Ori Kam
2020-07-06 17:36   ` [dpdk-dev] [PATCH v5 3/4] regexdev: add regexdev core functions Ori Kam
2020-07-06 17:36   ` [dpdk-dev] [PATCH v5 4/4] regexdev: implement regex rte level functions Ori Kam
2020-07-06 22:30   ` [dpdk-dev] [PATCH v5 0/4] add RegEx class Thomas Monjalon

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	public-inbox-index dev

Example config snippet for mirrors.
Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git