accel: Do not refer to the "framework" as "engine"

The word engine was both used (interchangeably with module) to refer to
the things that plug into the framework and to the framework itself.
This patch eliminates all use of the word engine that meant the
framework. It leaves uses of the word that meant "module".

Change-Id: I6b9b50e2f045ac39f2a74d0152ee8d6269be4bd1
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13918
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Reviewed-by: Shuhei Matsumoto <smatsumoto@nvidia.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>

autotest.sh

@@ -161,7 +161,7 @@ if [ $SPDK_RUN_FUNCTIONAL_TEST -eq 1 ]; then
 	run_test "dpdk_mem_utility" test/dpdk_memory_utility/test_dpdk_mem_info.sh
 	run_test "event" test/event/event.sh
 	run_test "thread" test/thread/thread.sh
-	run_test "accel_engine" test/accel_engine/accel_engine.sh
+	run_test "accel" test/accel/accel.sh
 
 	if [ $SPDK_TEST_BLOCKDEV -eq 1 ]; then
 		run_test "blockdev_general" test/bdev/blockdev.sh

examples/accel/perf/accel_perf.c

@@ -628,7 +628,7 @@ _init_thread(void *arg1)
 	worker->next = g_workers;
 	g_workers = worker;
 	pthread_mutex_unlock(&g_workers_lock);
-	worker->ch = spdk_accel_engine_get_io_channel();
+	worker->ch = spdk_accel_get_io_channel();
 	if (worker->ch == NULL) {
 		fprintf(stderr, "Unable to get an accel channel\n");
 		goto error;

include/spdk/accel.h

@@ -4,11 +4,11 @@
  */
 
 /** \file
- * Acceleration engine abstraction layer
+ * Acceleration Framework
  */
 
-#ifndef SPDK_ACCEL_ENGINE_H
-#define SPDK_ACCEL_ENGINE_H
+#ifndef SPDK_ACCEL_H
+#define SPDK_ACCEL_H
 
 #include "spdk/stdinc.h"
 
@@ -40,35 +40,35 @@ enum accel_opcode {
 typedef void (*spdk_accel_completion_cb)(void *ref, int status);
 
 /**
- * Acceleration engine finish callback.
+ * Acceleration framework finish callback.
  *
  * \param cb_arg Callback argument.
  */
 typedef void (*spdk_accel_fini_cb)(void *cb_arg);
 
 /**
- * Initialize the acceleration engine.
+ * Initialize the acceleration framework.
  *
  * \return 0 on success.
  */
-int spdk_accel_engine_initialize(void);
+int spdk_accel_initialize(void);
 
 /**
- * Close the acceleration engine.
+ * Close the acceleration framework.
  *
  * \param cb_fn Called when the close operation completes.
  * \param cb_arg Argument passed to the callback function.
  */
-void spdk_accel_engine_finish(spdk_accel_fini_cb cb_fn, void *cb_arg);
+void spdk_accel_finish(spdk_accel_fini_cb cb_fn, void *cb_arg);
 
 /**
- * Get the I/O channel registered on the acceleration engine.
+ * Get an I/O channel for the acceleration framework.
  *
- * This I/O channel is used to submit copy request.
+ * This I/O channel is used to submit requests.
  *
  * \return a pointer to the I/O channel on success, or NULL on failure.
  */
-struct spdk_io_channel *spdk_accel_engine_get_io_channel(void);
+struct spdk_io_channel *spdk_accel_get_io_channel(void);
 
 /**
  * Submit a copy request.

lib/accel/Makefile

@@ -11,7 +11,7 @@ SO_MINOR := 0
 SO_SUFFIX := $(SO_VER).$(SO_MINOR)
 
 LIBNAME = accel
-C_SRCS = accel_engine.c accel_engine_rpc.c accel_sw.c
+C_SRCS = accel.c accel_rpc.c accel_sw.c
 
 SPDK_MAP_FILE = $(abspath $(CURDIR)/spdk_accel.map)
 

lib/accel/accel.c

@@ -17,7 +17,7 @@
 #include "spdk/crc32.h"
 #include "spdk/util.h"
 
-/* Accelerator Engine Framework: The following provides a top level
+/* Accelerator Framework: The following provides a top level
  * generic API for the accelerator functions defined here. Modules,
  * such as the one in /module/accel/ioat, supply the implementation
  * with the exception of the pure software implementation contained
@@ -483,7 +483,7 @@ spdk_accel_module_list_add(struct spdk_accel_module_if *accel_module)
 
 /* Framework level channel create callback. */
 static int
-accel_engine_create_cb(void *io_device, void *ctx_buf)
+accel_create_channel(void *io_device, void *ctx_buf)
 {
 	struct accel_io_channel	*accel_ch = ctx_buf;
 	struct spdk_accel_task *accel_task;
@@ -523,7 +523,7 @@ err:
 
 /* Framework level channel destroy callback. */
 static void
-accel_engine_destroy_cb(void *io_device, void *ctx_buf)
+accel_destroy_channel(void *io_device, void *ctx_buf)
 {
 	struct accel_io_channel	*accel_ch = ctx_buf;
 	int i;
@@ -538,13 +538,13 @@ accel_engine_destroy_cb(void *io_device, void *ctx_buf)
 }
 
 struct spdk_io_channel *
-spdk_accel_engine_get_io_channel(void)
+spdk_accel_get_io_channel(void)
 {
 	return spdk_get_io_channel(&spdk_accel_module_list);
 }
 
 static void
-accel_engine_module_initialize(void)
+accel_module_initialize(void)
 {
 	struct spdk_accel_module_if *accel_engine_module;
 
@@ -554,13 +554,13 @@ accel_engine_module_initialize(void)
 }
 
 int
-spdk_accel_engine_initialize(void)
+spdk_accel_initialize(void)
 {
 	enum accel_opcode op;
 	struct spdk_accel_module_if *accel_module = NULL;
 
 	g_engine_started = true;
-	accel_engine_module_initialize();
+	accel_module_initialize();
 
 	/* Create our priority global map of opcodes to engines, we populate starting
 	 * with the software engine (guaranteed to be first on the list) and then
@@ -599,17 +599,17 @@ spdk_accel_engine_initialize(void)
 	}
 #endif
 	/*
-	 * We need a unique identifier for the accel engine framework, so use the
+	 * We need a unique identifier for the accel framework, so use the
 	 * spdk_accel_module_list address for this purpose.
 	 */
-	spdk_io_device_register(&spdk_accel_module_list, accel_engine_create_cb, accel_engine_destroy_cb,
-				sizeof(struct accel_io_channel), "accel_module");
+	spdk_io_device_register(&spdk_accel_module_list, accel_create_channel, accel_destroy_channel,
+				sizeof(struct accel_io_channel), "accel");
 
 	return 0;
 }
 
 static void
-accel_engine_module_finish_cb(void)
+accel_module_finish_cb(void)
 {
 	spdk_accel_fini_cb cb_fn = g_fini_cb_fn;
 
@@ -646,7 +646,7 @@ spdk_accel_module_finish(void)
 	}
 
 	if (!g_accel_engine_module) {
-		accel_engine_module_finish_cb();
+		accel_module_finish_cb();
 		return;
 	}
 
@@ -658,7 +658,7 @@ spdk_accel_module_finish(void)
 }
 
 void
-spdk_accel_engine_finish(spdk_accel_fini_cb cb_fn, void *cb_arg)
+spdk_accel_finish(spdk_accel_fini_cb cb_fn, void *cb_arg)
 {
 	enum accel_opcode op;
 

lib/accel/spdk_accel.map

@@ -2,9 +2,9 @@
 	global:
 
 	# public functions
-	spdk_accel_engine_initialize;
-	spdk_accel_engine_finish;
-	spdk_accel_engine_get_io_channel;
+	spdk_accel_initialize;
+	spdk_accel_finish;
+	spdk_accel_get_io_channel;
 	spdk_accel_submit_copy;
 	spdk_accel_submit_dualcast;
 	spdk_accel_submit_compare;

lib/nvmf/tcp.c

@@ -1313,7 +1313,7 @@ nvmf_tcp_poll_group_create(struct spdk_nvmf_transport *transport,
 		}
 	}
 
-	tgroup->accel_channel = spdk_accel_engine_get_io_channel();
+	tgroup->accel_channel = spdk_accel_get_io_channel();
 	if (spdk_unlikely(!tgroup->accel_channel)) {
 		SPDK_ERRLOG("Cannot create accel_channel for tgroup=%p\n", tgroup);
 		goto cleanup;

module/bdev/malloc/bdev_malloc.c

@@ -478,9 +478,9 @@ malloc_create_channel_cb(void *io_device, void *ctx)
 {
 	struct malloc_channel *ch = ctx;
 
-	ch->accel_channel = spdk_accel_engine_get_io_channel();
+	ch->accel_channel = spdk_accel_get_io_channel();
 	if (!ch->accel_channel) {
-		SPDK_ERRLOG("Failed to get accel engine's IO channel\n");
+		SPDK_ERRLOG("Failed to get accel framework's IO channel\n");
 		return -ENOMEM;
 	}
 

module/bdev/nvme/bdev_nvme.c

@@ -2426,7 +2426,7 @@ bdev_nvme_create_poll_group_cb(void *io_device, void *ctx_buf)
 		return -1;
 	}
 
-	group->accel_channel = spdk_accel_engine_get_io_channel();
+	group->accel_channel = spdk_accel_get_io_channel();
 	if (!group->accel_channel) {
 		spdk_nvme_poll_group_destroy(group->group);
 		SPDK_ERRLOG("Cannot get the accel_channel for bdev nvme polling group=%p\n",

module/event/subsystems/accel/accel.c

@@ -11,31 +11,31 @@
 #include "spdk/env.h"
 
 static void
-accel_engine_subsystem_initialize(void)
+accel_subsystem_initialize(void)
 {
 	int rc;
 
-	rc = spdk_accel_engine_initialize();
+	rc = spdk_accel_initialize();
 
 	spdk_subsystem_init_next(rc);
 }
 
 static void
-accel_engine_subsystem_finish_done(void *cb_arg)
+accel_subsystem_finish_done(void *cb_arg)
 {
 	spdk_subsystem_fini_next();
 }
 
 static void
-accel_engine_subsystem_finish(void)
+accel_subsystem_finish(void)
 {
-	spdk_accel_engine_finish(accel_engine_subsystem_finish_done, NULL);
+	spdk_accel_finish(accel_subsystem_finish_done, NULL);
 }
 
 static struct spdk_subsystem g_spdk_subsystem_accel = {
 	.name = "accel",
-	.init = accel_engine_subsystem_initialize,
-	.fini = accel_engine_subsystem_finish,
+	.init = accel_subsystem_initialize,
+	.fini = accel_subsystem_finish,
 	.write_config_json = spdk_accel_write_config_json,
 };
 

test/accel/accel.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+
+testdir=$(readlink -f $(dirname $0))
+rootdir=$(readlink -f $testdir/../..)
+source $rootdir/test/common/autotest_common.sh
+
+#Run through all SW ops with defaults for a quick sanity check
+#To save time, only use verification case
+run_test "accel" $SPDK_EXAMPLE_DIR/accel_perf -t 1 -w crc32c -y
+run_test "accel" $SPDK_EXAMPLE_DIR/accel_perf -t 1 -w crc32c -y -C 2
+run_test "accel" $SPDK_EXAMPLE_DIR/accel_perf -t 1 -w copy -y
+run_test "accel" $SPDK_EXAMPLE_DIR/accel_perf -t 1 -w fill -y
+run_test "accel" $SPDK_EXAMPLE_DIR/accel_perf -t 1 -w copy_crc32c -y
+run_test "accel" $SPDK_EXAMPLE_DIR/accel_perf -t 1 -w copy_crc32c -y -C 2
+run_test "accel" $SPDK_EXAMPLE_DIR/accel_perf -t 1 -w dualcast -y
+run_test "accel" $SPDK_EXAMPLE_DIR/accel_perf -t 1 -w compare -y

test/accel_engine/accel_engine.sh

@@ -1,16 +0,0 @@
-#!/usr/bin/env bash
-
-testdir=$(readlink -f $(dirname $0))
-rootdir=$(readlink -f $testdir/../..)
-source $rootdir/test/common/autotest_common.sh
-
-#Run through all SW ops with defaults for a quick sanity check
-#To save time, only use verification case
-run_test "accel_engine" $SPDK_EXAMPLE_DIR/accel_perf -t 1 -w crc32c -y
-run_test "accel_engine" $SPDK_EXAMPLE_DIR/accel_perf -t 1 -w crc32c -y -C 2
-run_test "accel_engine" $SPDK_EXAMPLE_DIR/accel_perf -t 1 -w copy -y
-run_test "accel_engine" $SPDK_EXAMPLE_DIR/accel_perf -t 1 -w fill -y
-run_test "accel_engine" $SPDK_EXAMPLE_DIR/accel_perf -t 1 -w copy_crc32c -y
-run_test "accel_engine" $SPDK_EXAMPLE_DIR/accel_perf -t 1 -w copy_crc32c -y -C 2
-run_test "accel_engine" $SPDK_EXAMPLE_DIR/accel_perf -t 1 -w dualcast -y
-run_test "accel_engine" $SPDK_EXAMPLE_DIR/accel_perf -t 1 -w compare -y

test/unit/lib/accel/accel.c/Makefile

@@ -5,6 +5,6 @@
 
 SPDK_ROOT_DIR := $(abspath $(CURDIR)/../../../../..)
 
-TEST_FILE = accel_engine_ut.c
+TEST_FILE = accel_ut.c
 
 include $(SPDK_ROOT_DIR)/mk/spdk.unittest.mk

test/unit/lib/accel/accel.c/accel_ut.c

@@ -9,7 +9,7 @@
 #include "spdk_internal/accel_engine.h"
 #include "thread/thread_internal.h"
 #include "common/lib/test_env.c"
-#include "accel/accel_engine.c"
+#include "accel/accel.c"
 #include "accel/accel_sw.c"
 #include "unit/lib/json_mock.c"
 

test/unit/lib/bdev/nvme/bdev_nvme.c/bdev_nvme_ut.c

@@ -57,7 +57,7 @@ spdk_nvme_ctrlr_get_memory_domains(const struct spdk_nvme_ctrlr *ctrlr,
 }
 
 struct spdk_io_channel *
-spdk_accel_engine_get_io_channel(void)
+spdk_accel_get_io_channel(void)
 {
 	return spdk_get_io_channel(g_accel_p);
 }

test/unit/lib/nvmf/tcp.c/tcp_ut.c

@@ -217,7 +217,7 @@ DEFINE_STUB(spdk_bdev_reset, int, (struct spdk_bdev_desc *desc, struct spdk_io_c
 DEFINE_STUB_V(spdk_bdev_free_io, (struct spdk_bdev_io *bdev_io));
 
 struct spdk_io_channel *
-spdk_accel_engine_get_io_channel(void)
+spdk_accel_get_io_channel(void)
 {
 	return spdk_get_io_channel(g_accel_p);
 }

test/unit/unittest.sh

@@ -219,7 +219,7 @@ if [ $(uname -s) = Linux ]; then
 	run_test "unittest_ftl" unittest_ftl
 fi
 
-run_test "unittest_accel" $valgrind $testdir/lib/accel/accel.c/accel_engine_ut
+run_test "unittest_accel" $valgrind $testdir/lib/accel/accel.c/accel_ut
 run_test "unittest_ioat" $valgrind $testdir/lib/ioat/ioat.c/ioat_ut
 if grep -q '#define SPDK_CONFIG_IDXD 1' $rootdir/include/spdk/config.h; then
 	run_test "unittest_idxd_user" $valgrind $testdir/lib/idxd/idxd_user.c/idxd_user_ut