According to the logical layering of UADK, the device driver has been updated from the previous fixed binding HiSilicon accelerator to the dynamic registration method through the algorithm linked list method.

After the update, it can support the use of instruction acceleration and third-party device drivers.

Signed-off-by: Longfang Liu liulongfang@huawei.com --- Makefile.am | 4 +- include/wd_alg.h | 95 ++++++++++++++ include/wd_alg_common.h | 1 + libwd.map | 8 ++ wd_alg.c | 265 ++++++++++++++++++++++++++++++++++++++++ 5 files changed, 371 insertions(+), 2 deletions(-) create mode 100644 include/wd_alg.h create mode 100644 wd_alg.c

diff --git a/Makefile.am b/Makefile.am index ee8454b..1ea6d6b 100644 --- a/Makefile.am +++ b/Makefile.am @@ -33,7 +33,7 @@ AM_CFLAGS+= -DUADK_RELEASED_TIME=""Released ${MONTH} ${DAY}, ${YEAR}"" pkginclude_HEADERS = include/wd.h include/wd_cipher.h include/wd_aead.h \ include/wd_comp.h include/wd_dh.h include/wd_digest.h \ include/wd_rsa.h include/uacce.h include/wd_alg_common.h \ - include/wd_ecc.h include/wd_sched.h + include/wd_ecc.h include/wd_sched.h include/wd_alg.h

nobase_pkginclude_HEADERS = v1/wd.h v1/wd_cipher.h v1/wd_aead.h v1/uacce.h v1/wd_dh.h \ v1/wd_digest.h v1/wd_rsa.h v1/wd_bmm.h @@ -41,7 +41,7 @@ nobase_pkginclude_HEADERS = v1/wd.h v1/wd_cipher.h v1/wd_aead.h v1/uacce.h v1/wd lib_LTLIBRARIES=libwd.la libwd_comp.la libwd_crypto.la libhisi_zip.la \ libhisi_hpre.la libhisi_sec.la

-libwd_la_SOURCES=wd.c wd_mempool.c wd.h \ +libwd_la_SOURCES=wd.c wd_mempool.c wd.h wd_alg.c wd_alg.h \ v1/wd.c v1/wd.h v1/wd_adapter.c v1/wd_adapter.h \ v1/wd_rng.c v1/wd_rng.h \ v1/wd_rsa.c v1/wd_rsa.h \ diff --git a/include/wd_alg.h b/include/wd_alg.h new file mode 100644 index 0000000..e369021 --- /dev/null +++ b/include/wd_alg.h @@ -0,0 +1,95 @@ +// SPDX-License-Identifier: Apache-2.0 +/* + * Copyright 2022 Huawei Technologies Co.,Ltd. All rights reserved. + */ + +#ifndef __WD_ALG_H +#define __WD_ALG_H +#include <errno.h> +#include <fcntl.h> +#include <stdbool.h> +#include <stdint.h> +#include <stdio.h> +#include <string.h> +#include <syslog.h> +#include <unistd.h> +#include <asm/types.h> + +#ifdef __cplusplus +extern "C" { +#endif + +#define handle_t uintptr_t +enum alg_priority { + UADK_ALG_SOFT = 0x0, + UADK_ALG_CE_INSTR = 0x1, + UADK_ALG_SVE_INSTR = 0x2, + UADK_ALG_HW = 0x3 +}; + +/* + * @drv_name: name of the current device driver + * @alg_name: name of the algorithm supported by the driver + * @priority: priority of the type of algorithm supported by the driver + * @queue_num: number of device queues required by the device to + * execute the algorithm business + * @op_type_num: number of modes in which the device executes the + * algorithm business and requires queues to be executed separately + * @priv_size: parameter memory size passed between the internal + * interfaces of the driver + * @fallback: soft calculation driver handle when performing soft + * calculation supplement + * @init: callback interface for initializing device drivers + * @exit: callback interface for destroying device drivers + * @send: callback interface used to send task packets to + * hardware devices. + * @recv: callback interface used to retrieve the calculation + * result of the task packets from the hardware device. + * @get_usage: callback interface used to obtain the + * utilization rate of hardware devices. + */ +struct wd_alg_driver { + const char *drv_name; + const char *alg_name; + int priority; + int queue_num; + int op_type_num; + int priv_size; + handle_t fallback; + + int (*init)(void *conf, void *priv); + void (*exit)(void *priv); + int (*send)(handle_t ctx, void *drv_msg); + int (*recv)(handle_t ctx, void *drv_msg); + int (*get_usage)(void *param); +}; + +int wd_alg_driver_register(struct wd_alg_driver *drv); +void wd_alg_driver_unregister(struct wd_alg_driver *drv); + +struct wd_alg_list { + const char *alg_name; + const char *drv_name; + int priority; + bool available; + int refcnt; + + struct wd_alg_driver *drv; + struct wd_alg_list *next; +}; + +struct wd_alg_driver *wd_request_drv(const char *alg_name, bool hw_mask); +void wd_release_drv(struct wd_alg_driver *drv); + +bool wd_drv_alg_support(const char *alg_name, + struct wd_alg_driver *drv); +void wd_enable_drv(struct wd_alg_driver *drv); +void wd_disable_drv(struct wd_alg_driver *drv); + +struct wd_alg_list *wd_get_alg_head(void); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/include/wd_alg_common.h b/include/wd_alg_common.h index 56539cc..d04b046 100644 --- a/include/wd_alg_common.h +++ b/include/wd_alg_common.h @@ -10,6 +10,7 @@ #include <pthread.h> #include <stdbool.h> #include "wd.h" +#include "wd_alg.h"

#ifdef __cplusplus extern "C" { diff --git a/libwd.map b/libwd.map index 459f9ba..5522ec0 100644 --- a/libwd.map +++ b/libwd.map @@ -41,5 +41,13 @@ global: wd_add_dev_to_list; wd_find_dev_by_numa;

+ wd_alg_driver_register; + wd_alg_driver_unregister; + wd_request_drv; + wd_release_drv; + wd_drv_alg_support; + wd_enable_drv; + wd_disable_drv; + wd_get_alg_head; local: *; }; diff --git a/wd_alg.c b/wd_alg.c new file mode 100644 index 0000000..197af6f --- /dev/null +++ b/wd_alg.c @@ -0,0 +1,265 @@ +/* SPDX-License-Identifier: Apache-2.0 */ +/* + * Copyright 2022 Huawei Technologies Co.,Ltd. All rights reserved. + */ + +#define _GNU_SOURCE +#include <ctype.h> +#include <dirent.h> +#include <errno.h> +#include <stdbool.h> +#include <stdlib.h> +#include <string.h> +#include <pthread.h> + +#include "wd.h" +#include "wd_alg.h" + +#define SYS_CLASS_DIR "/sys/class/uacce" +static struct wd_alg_list alg_list_head; +static struct wd_alg_list *alg_list_tail = &alg_list_head; + +static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; + +static bool wd_check_accel_dev(const char *drv_name) +{ + struct dirent *dev_dir; + DIR *wd_class; + + wd_class = opendir(SYS_CLASS_DIR); + if (!wd_class) { + WD_ERR("UADK framework isn't enabled in system!\n"); + return NULL; + } + + while ((dev_dir = readdir(wd_class)) != NULL) { + if (!strncmp(dev_dir->d_name, ".", LINUX_CRTDIR_SIZE) || + !strncmp(dev_dir->d_name, "..", LINUX_PRTDIR_SIZE)) + continue; + + if (!strncmp(dev_dir->d_name, drv_name, strlen(drv_name))) { + closedir(wd_class); + return true; + } + } + closedir(wd_class); + + return false; +} + +int wd_alg_driver_register(struct wd_alg_driver *drv) +{ + struct wd_alg_list *new_alg; + + if (!drv) { + WD_ERR("invalid: register drv is NULL!\n"); + return -WD_EINVAL; + } + + new_alg = calloc(1, sizeof(struct wd_alg_list)); + if (!new_alg) { + WD_ERR("failed to alloc alg driver memory!\n"); + return -WD_ENOMEM; + } + + new_alg->alg_name = drv->alg_name; + new_alg->drv_name = drv->drv_name; + new_alg->priority = drv->priority; + new_alg->drv = drv; + new_alg->refcnt = 0; + new_alg->next = NULL; + + if (drv->priority == UADK_ALG_HW) { + /* If not find dev, remove this driver node */ + new_alg->available = wd_check_accel_dev(drv->drv_name); + if (!new_alg->available) { + free(new_alg); + WD_ERR("failed to find alg driver's device!\n"); + return -WD_ENODEV; + } + } else { + /* Should find the CPU if not support SVE or CE */ + new_alg->available = true; + } + + pthread_mutex_lock(&mutex); + alg_list_tail->next = new_alg; + alg_list_tail = new_alg; + pthread_mutex_unlock(&mutex); + + return 0; +} + +void wd_alg_driver_unregister(struct wd_alg_driver *drv) +{ + struct wd_alg_list *npre = &alg_list_head; + struct wd_alg_list *pnext = npre->next; + + /* Alg driver list has no drivers */ + if (!pnext || !drv) + return; + + pthread_mutex_lock(&mutex); + while (pnext) { + if (!strcmp(drv->alg_name, pnext->alg_name) && + !strcmp(drv->drv_name, pnext->drv_name) && + drv->priority == pnext->priority) { + break; + } + npre = pnext; + pnext = pnext->next; + } + + /* The current algorithm is not registered */ + if (!pnext) { + pthread_mutex_unlock(&mutex); + return; + } + + /* Used to locate the problem and ensure symmetrical use driver */ + if (pnext->refcnt > 0) + WD_ERR("driver<%s> still in used: %d\n", pnext->drv_name, pnext->refcnt); + + if (pnext == alg_list_tail) + alg_list_tail = npre; + + npre->next = pnext->next; + free(pnext); + pthread_mutex_unlock(&mutex); +} + +struct wd_alg_list *wd_get_alg_head(void) +{ + return &alg_list_head; +} + +bool wd_drv_alg_support(const char *alg_name, + struct wd_alg_driver *drv) +{ + struct wd_alg_list *head = &alg_list_head; + struct wd_alg_list *pnext = head->next; + + while (pnext) { + if (!strcmp(alg_name, pnext->alg_name) && + !strcmp(drv->drv_name, pnext->drv_name)) { + return true; + } + pnext = pnext->next; + } + + return false; +} + +void wd_enable_drv(struct wd_alg_driver *drv) +{ + struct wd_alg_list *head = &alg_list_head; + struct wd_alg_list *pnext = head->next; + + if (!pnext || !drv) + return; + + pthread_mutex_lock(&mutex); + while (pnext) { + if (!strcmp(drv->alg_name, pnext->alg_name) && + !strcmp(drv->drv_name, pnext->drv_name) && + drv->priority == pnext->priority) { + break; + } + pnext = pnext->next; + } + + if (drv->priority == UADK_ALG_HW) { + /* If not find dev, remove this driver node */ + pnext->available = wd_check_accel_dev(drv->drv_name); + } else { + /* Should find the CPU if not support SVE or CE */ + pnext->available = true; + } + pthread_mutex_unlock(&mutex); +} + +void wd_disable_drv(struct wd_alg_driver *drv) +{ + struct wd_alg_list *head = &alg_list_head; + struct wd_alg_list *pnext = head->next; + + if (!pnext || !drv) + return; + + pthread_mutex_lock(&mutex); + while (pnext) { + if (!strcmp(drv->alg_name, pnext->alg_name) && + !strcmp(drv->drv_name, pnext->drv_name) && + drv->priority == pnext->priority) { + break; + } + pnext = pnext->next; + } + + pnext->available = false; + pthread_mutex_unlock(&mutex); +} + +struct wd_alg_driver *wd_request_drv(const char *alg_name, bool hw_mask) +{ + struct wd_alg_list *head = &alg_list_head; + struct wd_alg_list *pnext = head->next; + struct wd_alg_list *select_node = NULL; + struct wd_alg_driver *drv = NULL; + int tmp_priority = -1; + + if (!pnext || !alg_name) { + WD_ERR("invalid: request alg param is error!\n"); + return NULL; + } + + /* Check the list to get an best driver */ + pthread_mutex_lock(&mutex); + while (pnext) { + /* hw_mask true mean not to used hardware dev */ + if (hw_mask && pnext->drv->priority == UADK_ALG_HW) { + pnext = pnext->next; + continue; + } + + if (!strcmp(alg_name, pnext->alg_name) && pnext->available && + pnext->drv->priority > tmp_priority) { + tmp_priority = pnext->drv->priority; + select_node = pnext; + drv = pnext->drv; + } + pnext = pnext->next; + } + + if (select_node) + select_node->refcnt++; + pthread_mutex_unlock(&mutex); + + return drv; +} + +void wd_release_drv(struct wd_alg_driver *drv) +{ + struct wd_alg_list *head = &alg_list_head; + struct wd_alg_list *pnext = head->next; + struct wd_alg_list *select_node = NULL; + + if (!pnext || !drv) + return; + + pthread_mutex_lock(&mutex); + while (pnext) { + if (!strcmp(drv->alg_name, pnext->alg_name) && + !strcmp(drv->drv_name, pnext->drv_name) && + drv->priority == pnext->priority) { + select_node = pnext; + break; + } + pnext = pnext->next; + } + + if (select_node && select_node->refcnt > 0) + select_node->refcnt--; + pthread_mutex_unlock(&mutex); +} +

After the dynamic loading function is added, device resource initialization, driver acquisition, and scheduler initialization functions need to be extracted into the public framework.

so that the algorithm can quickly adapt to the dynamic loading function internally.

Signed-off-by: Longfang Liu liulongfang@huawei.com --- include/wd_alg_common.h | 10 + include/wd_util.h | 63 ++++- wd_comp.c | 2 +- wd_util.c | 549 +++++++++++++++++++++++++++++++++++++++- 4 files changed, 620 insertions(+), 4 deletions(-)

diff --git a/include/wd_alg_common.h b/include/wd_alg_common.h index d04b046..31208ad 100644 --- a/include/wd_alg_common.h +++ b/include/wd_alg_common.h @@ -28,6 +28,13 @@ extern "C" { #define CTX_TYPE_INVALID 9999 #define POLL_TIME 1000

+enum alg_task_type { + TASK_MIX = 0x0, + TASK_HW, + TASK_INSTR, + TASK_MAX_TYPE, +}; + enum wd_ctx_mode { CTX_MODE_SYNC = 0, CTX_MODE_ASYNC, @@ -130,6 +137,9 @@ struct wd_sched { handle_t h_sched_ctx; };

+typedef int (*wd_alg_init)(struct wd_ctx_config *config, struct wd_sched *sched); +typedef int (*wd_alg_poll_ctx)(__u32 idx, __u32 expt, __u32 *count); + struct wd_datalist { void *data; __u32 len; diff --git a/include/wd_util.h b/include/wd_util.h index d4b2814..a730f36 100644 --- a/include/wd_util.h +++ b/include/wd_util.h @@ -117,9 +117,12 @@ struct wd_msg_handle { struct wd_init_attrs { __u32 sched_type; char *alg; + struct wd_alg_driver *driver; struct wd_sched *sched; struct wd_ctx_params *ctx_params; struct wd_ctx_config *ctx_config; + wd_alg_init alg_init; + wd_alg_poll_ctx alg_poll_ctx; };

/* @@ -415,13 +418,69 @@ static inline void wd_alg_clear_init(enum wd_status *status) }

/** - * wd_alg_pre_init() - Request the ctxs and initialize the sched_domain + * wd_ctx_param_init() - Initialize the current device driver according + * to the obtained queue resource and the applied driver. + * @config: device resources requested by the current algorithm. + * @driver: device driver for the current algorithm application. + * @drv_priv: the parameter pointer of the current device driver. + * + * Return 0 if succeed and other error number if fail. + */ +int wd_ctx_param_init(struct wd_ctx_params *ctx_params, + struct wd_ctx_params *user_ctx_params, + struct wd_ctx_nums *ctx_set_num, + struct wd_alg_driver *driver, int max_op_type); + +/** + * wd_alg_attrs_init() - Request the ctxs and initialize the sched_domain * with the given devices list, ctxs number and numa mask. * @attrs: the algorithm initialization parameters. * * Return device if succeed and other error number if fail. */ -int wd_alg_pre_init(struct wd_init_attrs *attrs); +int wd_alg_attrs_init(struct wd_init_attrs *attrs); +void wd_alg_attrs_uninit(struct wd_init_attrs *attrs); + +/** + * wd_alg_drv_bind() - Request the ctxs and initialize the sched_domain + * with the given devices list, ctxs number and numa mask. + * @task_type: the type of task specified by the current algorithm. + * @alg_name: the name of the algorithm specified by the task. + * + * Return device driver if succeed and other NULL if fail. + */ +struct wd_alg_driver *wd_alg_drv_bind(int task_type, char *alg_name); +void wd_alg_drv_unbind(struct wd_alg_driver *drv); + +/** + * wd_alg_init_driver() - Initialize the current device driver according + * to the obtained queue resource and the applied driver. + * @config: device resources requested by the current algorithm. + * @driver: device driver for the current algorithm application. + * @drv_priv: the parameter pointer of the current device driver. + * + * Return 0 if succeed and other error number if fail. + */ +int wd_alg_init_driver(struct wd_ctx_config_internal *config, + struct wd_alg_driver *driver, void **drv_priv); +void wd_alg_uninit_driver(struct wd_ctx_config_internal *config, + struct wd_alg_driver *driver, void **drv_priv); + +/** + * wd_dlopen_drv() - Open the dynamic library file of the device driver. + * @cust_lib_dir: the file path of the dynamic library file. + */ +void *wd_dlopen_drv(const char *cust_lib_dir); +void wd_dlclose_drv(void *dlh_list); + +/** + * wd_get_lib_file_path() - Find the path of the dynamic library file in + * the current system. + * @lib_file: the name of the library file. + * @lib_path: the found dynamic library file path. + * @is_dir: Specify whether to query the file dir or the file path. + */ +int wd_get_lib_file_path(char *lib_file, char *lib_path, bool is_dir);

/** * wd_dfx_msg_cnt() - Message counter interface for ctx diff --git a/wd_comp.c b/wd_comp.c index cca6eb9..ecfa573 100644 --- a/wd_comp.c +++ b/wd_comp.c @@ -248,7 +248,7 @@ int wd_comp_init2_(char *alg, __u32 sched_type, int task_type, struct wd_ctx_par wd_comp_sched->name = SCHED_RR_NAME; wd_comp_init_attrs.sched = wd_comp_sched;

- ret = wd_alg_pre_init(&wd_comp_init_attrs); + ret = wd_alg_attrs_init(&wd_comp_init_attrs); if (ret) goto out_freesched;

diff --git a/wd_util.c b/wd_util.c index 433dd56..dab4fc8 100644 --- a/wd_util.c +++ b/wd_util.c @@ -5,6 +5,8 @@ */

#define _GNU_SOURCE +#include <dirent.h> +#include <dlfcn.h> #include <pthread.h> #include <semaphore.h> #include <string.h> @@ -23,6 +25,8 @@ #define WD_INIT_SLEEP_UTIME 1000 #define WD_INIT_RETRY_TIMES 10000

+#define DEF_DRV_LIB_FILE "libwd.so" + struct msg_pool { /* message array allocated dynamically */ void *msgs; @@ -64,6 +68,72 @@ struct async_task_queue { int (*alg_poll_ctx)(__u32, __u32, __u32 *); };

+struct drv_lib_list { + void *dlhandle; + struct drv_lib_list *next; +}; + +struct acc_alg_item { + char *name; + char *algtype; +}; + +static struct acc_alg_item alg_options[] = { + {"zlib", "zlib-deflate"}, + {"gzip", "gzip"}, + {"deflate", "deflate"}, + {"lz77_zstd", "lz77_zstd"}, + + {"rsa", "rsa"}, + {"dh", "dh"}, + {"ecdh", "ecdh"}, + {"x25519", "x25519"}, + {"x448", "x448"}, + {"ecdsa", "ecdsa"}, + {"sm2", "sm2"}, + + {"ecb(aes)", "cipher"}, + {"cbc(aes)", "cipher"}, + {"xts(aes)", "cipher"}, + {"ofb(aes)", "cipher"}, + {"cfb(aes)", "cipher"}, + {"ctr(aes)", "cipher"}, + {"cbc-cs1(aes)", "cipher"}, + {"cbc-cs2(aes)", "cipher"}, + {"cbc-cs3(aes)", "cipher"}, + {"ecb(sm4)", "cipher"}, + {"xts(sm4)", "cipher"}, + {"cbc(sm4)", "cipher"}, + {"ofb(sm4)", "cipher"}, + {"cfb(sm4)", "cipher"}, + {"ctr(sm4)", "cipher"}, + {"cbc-cs1(sm4)", "cipher"}, + {"cbc-cs2(sm4)", "cipher"}, + {"cbc-cs3(sm4)", "cipher"}, + {"ecb(des)", "cipher"}, + {"cbc(des)", "cipher"}, + {"ecb(des3_ede)", "cipher"}, + {"cbc(des3_ede)", "cipher"}, + + {"ccm(aes)", "aead"}, + {"gcm(aes)", "aead"}, + {"ccm(sm4)", "aead"}, + {"gcm(sm4)", "aead"}, + {"authenc(hmac(sha256),cbc(aes))", "aead"}, + {"authenc(hmac(sha256),cbc(sm4))", "aead"}, + + {"sm3", "digest"}, + {"md5", "digest"}, + {"sha1", "digest"}, + {"sha256", "digest"}, + {"sha224", "digest"}, + {"sha384", "digest"}, + {"sha512", "digest"}, + {"sha512-224", "digest"}, + {"sha512-256", "digest"}, + {"", ""} +}; + static void clone_ctx_to_internal(struct wd_ctx *ctx, struct wd_ctx_internal *ctx_in) { @@ -1779,6 +1849,358 @@ int wd_init_param_check(struct wd_ctx_config *config, struct wd_sched *sched) return 0; }

+static void wd_get_alg_type(const char *alg_name, char *alg_type) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(alg_options); i++) { + if (strcmp(alg_name, alg_options[i].name) == 0) { + (void)strcpy(alg_type, alg_options[i].algtype); + break; + } + } +} + +/** + * There are many other .so files in this file directory (/root/lib/), + * and it is necessary to screen out valid uadk driver files + * through this function. + */ +static int file_check_valid(char *lib_file) +{ +#define FILE_HEAD_SZ 4 +#define FILE_TAIL_SZ 4 + int file_len = strlen(lib_file); + char file_head[FILE_HEAD_SZ] = "lib"; + char file_tail[FILE_TAIL_SZ] = ".so"; + int i, j; + + /* Lib file name is libxx_xxx.so */ + for (i = 0; i < FILE_HEAD_SZ - 1; i++) { + if (lib_file[i] != file_head[i]) + return -EINVAL; + } + + for (i = file_len - (FILE_TAIL_SZ - 1), j = 0; + i < file_len && j < FILE_TAIL_SZ; i++, j++) { + if (lib_file[i] != file_tail[j]) + return -EINVAL; + } + + return 0; +} + +static int wd_alg_init_fallback(struct wd_alg_driver *fb_driver) +{ + if (!fb_driver->init) { + WD_ERR("soft sec driver have no init interface.\n"); + return -WD_EINVAL; + } + + fb_driver->init(NULL, NULL); + + return 0; +} + +static void wd_alg_uninit_fallback(struct wd_alg_driver *fb_driver) +{ + if (!fb_driver->exit) { + WD_ERR("soft sec driver have no exit interface.\n"); + return; + } + + fb_driver->exit(NULL); +} + +int wd_alg_init_driver(struct wd_ctx_config_internal *config, + struct wd_alg_driver *driver, void **drv_priv) +{ + void *priv; + int ret; + + /* Init ctx related resources in specific driver */ + priv = calloc(1, driver->priv_size); + if (!priv) + return -WD_ENOMEM; + + if (!driver->init) { + driver->fallback = 0; + WD_ERR("driver have no init interface.\n"); + ret = -WD_EINVAL; + goto err_alloc; + } + + ret = driver->init(config, priv); + if (ret < 0) { + WD_ERR("driver init failed.\n"); + goto err_alloc; + } + + if (driver->fallback) { + ret = wd_alg_init_fallback((struct wd_alg_driver *)driver->fallback); + if (ret) { + driver->fallback = 0; + WD_ERR("soft alg driver init failed.\n"); + } + } + *drv_priv = priv; + + return 0; + +err_alloc: + free(priv); + return ret; +} + +void wd_alg_uninit_driver(struct wd_ctx_config_internal *config, + struct wd_alg_driver *driver, void **drv_priv) +{ + void *priv = *drv_priv; + + driver->exit(priv); + /* Ctx config just need clear once */ + if (driver->priority == UADK_ALG_HW) + wd_clear_ctx_config(config); + + if (driver->fallback) + wd_alg_uninit_fallback((struct wd_alg_driver *)driver->fallback); + + if (priv) { + free(priv); + priv = NULL; + } +} + +void wd_dlclose_drv(void *dlh_list) +{ + struct drv_lib_list *dlhead = (struct drv_lib_list *)dlh_list; + struct drv_lib_list *dlnode; + + if (!dlhead) { + WD_INFO("driver so file list is empty.\n"); + return; + } + + while (dlhead) { + dlnode = dlhead; + dlhead = dlhead->next; + dlclose(dlnode); + free(dlnode); + } +} + +static void add_lib_to_list(struct drv_lib_list *head, + struct drv_lib_list *node) +{ + struct drv_lib_list *tmp = head; + + while (tmp->next) + tmp = tmp->next; + + tmp->next = node; +} + +int wd_ctx_param_init(struct wd_ctx_params *ctx_params, + struct wd_ctx_params *user_ctx_params, + struct wd_ctx_nums *ctx_set_num, + struct wd_alg_driver *driver, int max_op_type) +{ + int i; + + if (!user_ctx_params) { + ctx_params->bmp = NULL; + ctx_params->ctx_set_num = ctx_set_num; + ctx_params->op_type_num = driver->op_type_num; + if (ctx_params->op_type_num > max_op_type) { + WD_ERR("fail to check driver op type numbers.\n"); + return -WD_EAGAIN; + } + + for (i = 0; i < ctx_params->op_type_num; i++) { + ctx_set_num[i].sync_ctx_num = driver->queue_num; + ctx_set_num[i].async_ctx_num = driver->queue_num; + } + } else { + ctx_params->bmp = user_ctx_params->bmp; + ctx_params->ctx_set_num = user_ctx_params->ctx_set_num; + ctx_params->op_type_num = user_ctx_params->op_type_num; + if (ctx_params->op_type_num > max_op_type) { + WD_ERR("fail to check user op type numbers.\n"); + return -WD_EINVAL; + } + } + + return 0; +} + +static void dladdr_empty(void) {} +int wd_get_lib_file_path(char *lib_file, char *lib_path, bool is_dir) +{ + char file_path[PATH_STR_SIZE] = {0}; + Dl_info file_info; + int len, rc, i; + + /* Get libwd.so file's system path */ + rc = dladdr((void *)dladdr_empty, &file_info); + if (!rc) { + WD_ERR("fail to get lib file path.\n"); + return -WD_EINVAL; + } + strncpy(file_path, file_info.dli_fname, PATH_STR_SIZE - 1); + + /* Clear the file path's tail file name */ + len = strlen(file_path) - 1; + for (i = len; i >= 0; i--) { + if (file_path[i] == '/') { + memset(&file_path[i], 0, PATH_STR_SIZE - i + 1); + break; + } + } + + if (is_dir) { + (void)snprintf(lib_path, PATH_STR_SIZE, "%s", file_path); + return 0; + } + + len = snprintf(lib_path, PATH_STR_SIZE, "%s/%s", file_path, lib_file); + if (len < 0) + return -WD_EINVAL; + + return 0; +} + +void *wd_dlopen_drv(const char *cust_lib_dir) +{ + typedef int (*alg_ops)(struct wd_alg_driver *drv); + struct drv_lib_list *node, *head = NULL; + char lib_dir_path[PATH_STR_SIZE] = {0}; + char lib_path[PATH_STR_SIZE] = {0}; + struct dirent *lib_dir; + alg_ops dl_func = NULL; + DIR *wd_dir; + int ret; + + if (!cust_lib_dir) { + ret = wd_get_lib_file_path(NULL, lib_dir_path, true); + if (ret) + return NULL; + } else { + (void)snprintf(lib_path, PATH_STR_SIZE, "%s/%s", cust_lib_dir, DEF_DRV_LIB_FILE); + ret = access(lib_path, F_OK); + if (ret) + return NULL; + + strncpy(lib_dir_path, cust_lib_dir, PATH_STR_SIZE - 1); + } + + wd_dir = opendir(lib_dir_path); + if (!wd_dir) { + WD_ERR("UADK driver lib dir: %s not exist!\n", lib_dir_path); + return NULL; + } + + while ((lib_dir = readdir(wd_dir)) != NULL) { + if (!strncmp(lib_dir->d_name, ".", LINUX_CRTDIR_SIZE) || + !strncmp(lib_dir->d_name, "..", LINUX_PRTDIR_SIZE)) + continue; + + ret = file_check_valid(lib_dir->d_name); + if (ret) + continue; + + node = calloc(1, sizeof(*node)); + if (!node) + goto free_list; + + ret = snprintf(lib_path, PATH_STR_SIZE, "%s/%s", lib_dir_path, lib_dir->d_name); + if (ret < 0) + goto free_node; + + node->dlhandle = dlopen(lib_path, RTLD_NOW); + if (!node->dlhandle) { + free(node); + /* there are many other files need to skip */ + continue; + } + + dl_func = dlsym(node->dlhandle, "wd_alg_driver_register"); + if (dl_func == NULL) { + dlclose(node->dlhandle); + free(node); + continue; + } + + if (!head) + head = node; + else + add_lib_to_list(head, node); + } + closedir(wd_dir); + + return (void *)head; + +free_node: + free(node); +free_list: + closedir(wd_dir); + wd_dlclose_drv(head); + return NULL; +} + +struct wd_alg_driver *wd_alg_drv_bind(int task_type, char *alg_name) +{ + struct wd_alg_driver *set_driver = NULL; + struct wd_alg_driver *drv; + + /* Get alg driver and dev name */ + switch (task_type) { + case TASK_INSTR: + drv = wd_request_drv(alg_name, true); + if (!drv) { + WD_ERR("no soft %s driver support\n", alg_name); + return NULL; + } + set_driver = drv; + set_driver->fallback = 0; + break; + case TASK_HW: + case TASK_MIX: + drv = wd_request_drv(alg_name, false); + if (!drv) { + WD_ERR("no HW %s driver support\n", alg_name); + return NULL; + } + set_driver = drv; + set_driver->fallback = 0; + if (task_type == TASK_MIX) { + drv = wd_request_drv(alg_name, true); + if (!drv) { + set_driver->fallback = 0; + WD_ERR("no soft %s driver support\n", alg_name); + } else { + set_driver->fallback = (handle_t)drv; + WD_ERR("successful to get soft driver\n"); + } + } + break; + } + + return set_driver; +} + +void wd_alg_drv_unbind(struct wd_alg_driver *drv) +{ + struct wd_alg_driver *fb_drv = NULL; + + if (!drv) + return; + + fb_drv = (struct wd_alg_driver *)drv->fallback; + if (fb_drv) + wd_release_drv(fb_drv); + wd_release_drv(drv); +} + bool wd_alg_try_init(enum wd_status *status) { enum wd_status expected; @@ -1960,7 +2382,7 @@ free_ctxs: return ret; }

-int wd_alg_pre_init(struct wd_init_attrs *attrs) +static int wd_alg_ctx_init(struct wd_init_attrs *attrs) { struct wd_ctx_config *ctx_config = attrs->ctx_config; struct wd_ctx_params *ctx_params = attrs->ctx_params; @@ -2034,3 +2456,128 @@ out_freelist:

return ret; } + +static void wd_alg_ctx_uninit(struct wd_ctx_config *ctx_config) +{ + int i; + + for (i = 0; i < ctx_config->ctx_num; i++) + if (ctx_config->ctxs[i].ctx) { + wd_release_ctx(ctx_config->ctxs[i].ctx); + ctx_config->ctxs[i].ctx = 0; + } + + free(ctx_config->ctxs); +} + +int wd_alg_attrs_init(struct wd_init_attrs *attrs) +{ + wd_alg_poll_ctx alg_poll_func = attrs->alg_poll_ctx; + wd_alg_init alg_init_func = attrs->alg_init; + __u32 sched_type = attrs->sched_type; + struct wd_ctx_config *ctx_config = NULL; + struct wd_sched *alg_sched = NULL; + char alg_type[WD_NAME_SIZE]; + char *alg = attrs->alg; + int driver_type = UADK_ALG_HW; + int ret; + + if (!attrs->ctx_params) + return -WD_EINVAL; + + if (attrs->driver) + driver_type = attrs->driver->priority; + + switch (driver_type) { + case UADK_ALG_SOFT: + case UADK_ALG_CE_INSTR: + /* No need to alloc resource */ + if (sched_type != SCHED_POLICY_NONE) + return -WD_EINVAL; + + alg_sched = wd_sched_rr_alloc(SCHED_POLICY_NONE, 1, 1, alg_poll_func); + if (!alg_sched) { + WD_ERR("fail to alloc scheduler\n"); + return -WD_EINVAL; + } + attrs->sched = alg_sched; + + ret = wd_sched_rr_instance(alg_sched, NULL); + if (ret) { + WD_ERR("fail to instance scheduler\n"); + goto out_freesched; + } + break; + case UADK_ALG_SVE_INSTR: + /* Todo lock cpu core */ + if (sched_type != SCHED_POLICY_SINGLE) + return -WD_EINVAL; + + alg_sched = wd_sched_rr_alloc(SCHED_POLICY_SINGLE, 1, 1, alg_poll_func); + if (!alg_sched) { + WD_ERR("fail to alloc scheduler\n"); + return -WD_EINVAL; + } + attrs->sched = alg_sched; + + ret = wd_sched_rr_instance(alg_sched, NULL); + if (ret) { + WD_ERR("fail to instance scheduler\n"); + goto out_freesched; + } + break; + case UADK_ALG_HW: + wd_get_alg_type(alg, alg_type); + attrs->alg = alg_type; + + ctx_config = calloc(1, sizeof(*ctx_config)); + if (!ctx_config) { + WD_ERR("fail to alloc ctx config\n"); + return -WD_ENOMEM; + } + attrs->ctx_config = ctx_config; + + alg_sched = wd_sched_rr_alloc(sched_type, attrs->ctx_params->op_type_num, + numa_max_node() + 1, alg_poll_func); + if (!alg_sched) { + WD_ERR("fail to instance scheduler\n"); + ret = -WD_EINVAL; + goto out_ctx_config; + } + attrs->sched = alg_sched; + + ret = wd_alg_ctx_init(attrs); + if (ret) { + WD_ERR("fail to init ctx\n"); + goto out_freesched; + } + + ret = alg_init_func(ctx_config, alg_sched); + if (ret) + goto out_pre_init; + } + + return 0; + +out_pre_init: + wd_alg_ctx_uninit(ctx_config); +out_freesched: + wd_sched_rr_release(alg_sched); +out_ctx_config: + if (ctx_config) + free(ctx_config); + return ret; +} + +void wd_alg_attrs_uninit(struct wd_init_attrs *attrs) +{ + struct wd_ctx_config *ctx_config = attrs->ctx_config; + struct wd_sched *alg_sched = attrs->sched; + + if (ctx_config) { + wd_alg_ctx_uninit(ctx_config); + free(ctx_config); + } + wd_sched_rr_release(alg_sched); +} +

After adding the zip module of the init2 interface, combine its initialization part with dynamic loading, and transform the HiSilicon driver of zip, and use the dynamic loading function to realize the connection between the driver and the algorithm layer.

Signed-off-by: Longfang Liu liulongfang@huawei.com --- drv/hisi_comp.c | 59 +++++++-- include/drv/wd_comp_drv.h | 27 ----- wd_comp.c | 243 ++++++++++++++++++++------------------ 3 files changed, 175 insertions(+), 154 deletions(-)

diff --git a/drv/hisi_comp.c b/drv/hisi_comp.c index 2eede39..01e2ad8 100644 --- a/drv/hisi_comp.c +++ b/drv/hisi_comp.c @@ -13,7 +13,7 @@

#define ZLIB_HEADER "\x78\x9c" #define ZLIB_HEADER_SZ 2 - +#define ZIP_CTX_Q_NUM_DEF 1 /* * We use a extra field for gzip block length. So the fourth byte is \x04. * This is necessary because our software don't know the size of block when @@ -771,8 +771,9 @@ static void hisi_zip_sqe_ops_adapt(handle_t h_qp) } }

-static int hisi_zip_init(struct wd_ctx_config_internal *config, void *priv) +static int hisi_zip_init(void *conf, void *priv) { + struct wd_ctx_config_internal *config = conf; struct hisi_zip_ctx *zip_ctx = (struct hisi_zip_ctx *)priv; struct hisi_qm_priv qm_priv; handle_t h_qp = 0; @@ -1055,14 +1056,50 @@ static int hisi_zip_comp_recv(handle_t ctx, void *comp_msg) return parse_zip_sqe(qp, &sqe, recv_msg); }

-struct wd_comp_driver hisi_zip = { - .drv_name = "hisi_zip", - .alg_name = "zlib\ngzip\ndeflate\nlz77_zstd", - .drv_ctx_size = sizeof(struct hisi_zip_ctx), - .init = hisi_zip_init, - .exit = hisi_zip_exit, - .comp_send = hisi_zip_comp_send, - .comp_recv = hisi_zip_comp_recv, +#define GEN_ZIP_ALG_DRIVER(zip_alg_name) \ +{\ + .drv_name = "hisi_zip",\ + .alg_name = zip_alg_name,\ + .priority = UADK_ALG_HW,\ + .priv_size = sizeof(struct hisi_zip_ctx),\ + .queue_num = ZIP_CTX_Q_NUM_DEF,\ + .op_type_num = 2,\ + .fallback = 0,\ + .init = hisi_zip_init,\ + .exit = hisi_zip_exit,\ + .send = hisi_zip_comp_send,\ + .recv = hisi_zip_comp_recv,\ +} + +static struct wd_alg_driver zip_alg_driver[] = { + GEN_ZIP_ALG_DRIVER("zlib"), + GEN_ZIP_ALG_DRIVER("gzip"), + + GEN_ZIP_ALG_DRIVER("deflate"), + GEN_ZIP_ALG_DRIVER("lz77_zstd"), };

-WD_COMP_SET_DRIVER(hisi_zip); +static void __attribute__((constructor)) hisi_zip_probe(void) +{ + int alg_num = ARRAY_SIZE(zip_alg_driver); + int i, ret; + + WD_INFO("Info: register ZIP alg drivers!\n"); + + for (i = 0; i < alg_num; i++) { + ret = wd_alg_driver_register(&zip_alg_driver[i]); + if (ret) + WD_ERR("Error: register ZIP %s failed!\n", + zip_alg_driver[i].alg_name); + } +} + +static void __attribute__((destructor)) hisi_zip_remove(void) +{ + int alg_num = ARRAY_SIZE(zip_alg_driver); + int i; + + for (i = 0; i < alg_num; i++) + wd_alg_driver_unregister(&zip_alg_driver[i]); +} + diff --git a/include/drv/wd_comp_drv.h b/include/drv/wd_comp_drv.h index 4aeaee4..213cf2d 100644 --- a/include/drv/wd_comp_drv.h +++ b/include/drv/wd_comp_drv.h @@ -55,35 +55,8 @@ struct wd_comp_msg { __u32 tag; };

-struct wd_comp_driver { - const char *drv_name; - const char *alg_name; - __u32 drv_ctx_size; - int (*init)(struct wd_ctx_config_internal *config, void *priv); - void (*exit)(void *priv); - int (*comp_send)(handle_t ctx, void *comp_msg); - int (*comp_recv)(handle_t ctx, void *comp_msg); -}; - -void wd_comp_set_driver(struct wd_comp_driver *drv); -struct wd_comp_driver *wd_comp_get_driver(void); - struct wd_comp_msg *wd_comp_get_msg(__u32 idx, __u32 tag);

-#ifdef WD_STATIC_DRV -#define WD_COMP_SET_DRIVER(drv) \ -struct wd_comp_driver *wd_comp_get_driver(void) \ -{ \ - return &drv; \ -} -#else -#define WD_COMP_SET_DRIVER(drv) \ -static void __attribute__((constructor)) set_comp_driver(void) \ -{ \ - wd_comp_set_driver(&(drv)); \ -} -#endif - #ifdef __cplusplus } #endif diff --git a/wd_comp.c b/wd_comp.c index ecfa573..b7e0eb7 100644 --- a/wd_comp.c +++ b/wd_comp.c @@ -19,8 +19,6 @@ #define HW_CTX_SIZE (64 * 1024) #define STREAM_CHUNK (128 * 1024)

-#define SCHED_RR_NAME "sched_rr" - #define swap_byte(x) \ ((((x) & 0x000000ff) << 24) | \ (((x) & 0x0000ff00) << 8) | \ @@ -42,56 +40,61 @@ struct wd_comp_sess {

struct wd_comp_setting { enum wd_status status; - enum wd_status status2; struct wd_ctx_config_internal config; struct wd_sched sched; - struct wd_comp_driver *driver; + struct wd_async_msg_pool pool; + struct wd_alg_driver *driver; void *priv; void *dlhandle; - struct wd_async_msg_pool pool; + void *dlh_list; } wd_comp_setting;

struct wd_env_config wd_comp_env_config; - static struct wd_init_attrs wd_comp_init_attrs; -static struct wd_ctx_config wd_comp_ctx; -static struct wd_sched *wd_comp_sched; - -static struct wd_ctx_nums wd_comp_ctx_num[] = { - {1, 1}, {1, 1}, {} -};

-static struct wd_ctx_params wd_comp_ctx_params = { - .op_type_num = WD_DIR_MAX, - .ctx_set_num = wd_comp_ctx_num, - .bmp = NULL, -}; - -#ifdef WD_STATIC_DRV -static void wd_comp_set_static_drv(void) +static void wd_comp_close_driver(void) { - wd_comp_setting.driver = wd_comp_get_driver(); - if (!wd_comp_setting.driver) - WD_ERR("failed to get driver!\n"); + if (wd_comp_setting.dlhandle) { + wd_release_drv(wd_comp_setting.driver); + dlclose(wd_comp_setting.dlhandle); + wd_comp_setting.dlhandle = NULL; + } } -#else -static void __attribute__((constructor)) wd_comp_open_driver(void) + +static int wd_comp_open_driver(void) { - wd_comp_setting.dlhandle = dlopen("libhisi_zip.so", RTLD_NOW); - if (!wd_comp_setting.dlhandle) + struct wd_alg_driver *driver = NULL; + char lib_path[PATH_STR_SIZE]; + const char *alg_name = "zlib"; + int ret; + + /* + * Compatible with the normal acquisition of device + * drivers in the init interface + */ + if (wd_comp_setting.dlh_list) + return 0; + + ret = wd_get_lib_file_path("libhisi_zip.so", lib_path, false); + if (ret) + return ret; + + wd_comp_setting.dlhandle = dlopen(lib_path, RTLD_NOW); + if (!wd_comp_setting.dlhandle) { WD_ERR("failed to open libhisi_zip.so, %s\n", dlerror()); -} + return -WD_EINVAL; + }

-static void __attribute__((destructor)) wd_comp_close_driver(void) -{ - if (wd_comp_setting.dlhandle) - dlclose(wd_comp_setting.dlhandle); -} -#endif + driver = wd_request_drv(alg_name, false); + if (!driver) { + wd_comp_close_driver(); + WD_ERR("failed to get %s driver support\n", alg_name); + return -WD_EINVAL; + }

-void wd_comp_set_driver(struct wd_comp_driver *drv) -{ - wd_comp_setting.driver = drv; + wd_comp_setting.driver = driver; + + return 0; }

static void wd_comp_clear_status(void) @@ -101,13 +104,8 @@ static void wd_comp_clear_status(void)

static int wd_comp_init_nolock(struct wd_ctx_config *config, struct wd_sched *sched) { - void *priv; int ret;

- ret = wd_init_param_check(config, sched); - if (ret) - return ret; - ret = wd_set_epoll_en("WD_COMP_EPOLL_EN", &wd_comp_setting.config.epoll_en); if (ret < 0) @@ -120,19 +118,6 @@ static int wd_comp_init_nolock(struct wd_ctx_config *config, struct wd_sched *sc ret = wd_init_sched(&wd_comp_setting.sched, sched); if (ret < 0) goto out_clear_ctx_config; - /* - * Fix me: ctx could be passed into wd_comp_set_static_drv to help to - * choose static compiled vendor driver. For dynamic vendor driver, - * wd_comp_open_driver will be called in the process of opening - * libwd_comp.so to load related driver dynamic library. Vendor driver - * pointer will be passed to wd_comp_setting.driver in the process of - * opening of vendor driver dynamic library. A configure file could be - * introduced to help to define which vendor driver lib should be - * loaded. - */ -#ifdef WD_STATIC_DRV - wd_comp_set_static_drv(); -#endif

/* fix me: sadly find we allocate async pool for every ctx */ ret = wd_init_async_request_pool(&wd_comp_setting.pool, @@ -141,24 +126,14 @@ static int wd_comp_init_nolock(struct wd_ctx_config *config, struct wd_sched *sc if (ret < 0) goto out_clear_sched;

- /* init ctx related resources in specific driver */ - priv = calloc(1, wd_comp_setting.driver->drv_ctx_size); - if (!priv) { - ret = -WD_ENOMEM; + ret = wd_alg_init_driver(&wd_comp_setting.config, + wd_comp_setting.driver, + &wd_comp_setting.priv); + if (ret) goto out_clear_pool; - } - wd_comp_setting.priv = priv; - ret = wd_comp_setting.driver->init(&wd_comp_setting.config, priv); - if (ret < 0) { - WD_ERR("failed to do driver init, ret = %d!\n", ret); - goto out_free_priv; - }

return 0;

-out_free_priv: - free(priv); - wd_comp_setting.priv = NULL; out_clear_pool: wd_uninit_async_request_pool(&wd_comp_setting.pool); out_clear_sched: @@ -175,16 +150,14 @@ static void wd_comp_uninit_nolock(void) if (!priv) return;

- wd_comp_setting.driver->exit(priv); - free(priv); - wd_comp_setting.priv = NULL; - /* uninit async request pool */ wd_uninit_async_request_pool(&wd_comp_setting.pool);

/* unset config, sched, driver */ wd_clear_sched(&wd_comp_setting.sched); - wd_clear_ctx_config(&wd_comp_setting.config); + + wd_alg_uninit_driver(&wd_comp_setting.config, + wd_comp_setting.driver, &priv); }

int wd_comp_init(struct wd_ctx_config *config, struct wd_sched *sched) @@ -198,28 +171,43 @@ int wd_comp_init(struct wd_ctx_config *config, struct wd_sched *sched) if (!flag) return 0;

+ ret = wd_init_param_check(config, sched); + if (ret) + goto out_clear_init; + + ret = wd_comp_open_driver(); + if (ret) + goto out_clear_init; + ret = wd_comp_init_nolock(config, sched); - if (ret) { - wd_alg_clear_init(&wd_comp_setting.status); - goto out; - } + if (ret) + goto out_clear_driver;

wd_alg_set_init(&wd_comp_setting.status);

-out: + return 0; + +out_clear_driver: + wd_comp_close_driver(); +out_clear_init: + wd_alg_clear_init(&wd_comp_setting.status); return ret; }

void wd_comp_uninit(void) { wd_comp_uninit_nolock(); + + wd_comp_close_driver(); wd_alg_clear_init(&wd_comp_setting.status); }

int wd_comp_init2_(char *alg, __u32 sched_type, int task_type, struct wd_ctx_params *ctx_params) { + struct wd_ctx_nums comp_ctx_num[WD_DIR_MAX] = {0}; + struct wd_ctx_params comp_ctx_params; + int ret = 0; bool flag; - int ret;

pthread_atfork(NULL, NULL, wd_comp_clear_status);

@@ -227,61 +215,84 @@ int wd_comp_init2_(char *alg, __u32 sched_type, int task_type, struct wd_ctx_par if (!flag) return 0;

- if (!alg) { - WD_ERR("invalid: alg is NULL!\n"); + if (!alg || sched_type > SCHED_POLICY_BUTT || + task_type < 0 || task_type > TASK_MAX_TYPE) { + WD_ERR("invalid: input param is wrong!\n"); ret = -WD_EINVAL; goto out_uninit; }

- wd_comp_init_attrs.alg = alg; - wd_comp_init_attrs.sched_type = sched_type; + /* + * Driver lib file path could set by env param. + * than open tham by wd_dlopen_drv() + * use NULL means dynamic query path + */ + wd_comp_setting.dlh_list = wd_dlopen_drv(NULL); + if (!wd_comp_setting.dlh_list) { + WD_ERR("fail to open driver lib files.\n"); + goto out_uninit; + }

- wd_comp_init_attrs.ctx_params = ctx_params ? ctx_params : &wd_comp_ctx_params; - wd_comp_init_attrs.ctx_config = &wd_comp_ctx; +res_retry: + memset(&wd_comp_setting.config, 0, sizeof(struct wd_ctx_config_internal));

- wd_comp_sched = wd_sched_rr_alloc(sched_type, wd_comp_init_attrs.ctx_params->op_type_num, - numa_max_node() + 1, wd_comp_poll_ctx); - if (!wd_comp_sched) { - ret = -WD_EINVAL; - goto out_uninit; + /* Get alg driver and dev name */ + wd_comp_setting.driver = wd_alg_drv_bind(task_type, alg); + if (!wd_comp_setting.driver) { + WD_ERR("fail to bind a valid driver.\n"); + goto out_dlopen; } - wd_comp_sched->name = SCHED_RR_NAME; - wd_comp_init_attrs.sched = wd_comp_sched;

- ret = wd_alg_attrs_init(&wd_comp_init_attrs); - if (ret) - goto out_freesched; + ret = wd_ctx_param_init(&comp_ctx_params, ctx_params, + comp_ctx_num, wd_comp_setting.driver, + WD_DIR_MAX); + if (ret) { + if (ret == -WD_EAGAIN) { + wd_disable_drv(wd_comp_setting.driver); + wd_alg_drv_unbind(wd_comp_setting.driver); + goto res_retry; + } + goto out_driver; + }

- ret = wd_comp_init_nolock(&wd_comp_ctx, wd_comp_sched); - if (ret) - goto out_freesched; + wd_comp_init_attrs.alg = alg; + wd_comp_init_attrs.sched_type = sched_type; + wd_comp_init_attrs.driver = wd_comp_setting.driver; + wd_comp_init_attrs.ctx_params = &comp_ctx_params; + wd_comp_init_attrs.alg_init = wd_comp_init_nolock; + wd_comp_init_attrs.alg_poll_ctx = wd_comp_poll_ctx; + ret = wd_alg_attrs_init(&wd_comp_init_attrs); + if (ret) { + if (ret == -WD_ENODEV) { + wd_disable_drv(wd_comp_setting.driver); + wd_alg_drv_unbind(wd_comp_setting.driver); + goto res_retry; + } + WD_ERR("fail to init alg attrs.\n"); + goto out_driver; + }

wd_alg_set_init(&wd_comp_setting.status);

return 0;

-out_freesched: - wd_sched_rr_release(wd_comp_sched); - +out_driver: + wd_alg_drv_unbind(wd_comp_setting.driver); +out_dlopen: + wd_dlclose_drv(wd_comp_setting.dlh_list); out_uninit: wd_alg_clear_init(&wd_comp_setting.status); - return ret; }

void wd_comp_uninit2(void) { - int i; - wd_comp_uninit_nolock();

- for (i = 0; i < wd_comp_ctx.ctx_num; i++) - if (wd_comp_ctx.ctxs[i].ctx) { - wd_release_ctx(wd_comp_ctx.ctxs[i].ctx); - wd_comp_ctx.ctxs[i].ctx = 0; - } - - wd_sched_rr_release(wd_comp_sched); + wd_alg_attrs_uninit(&wd_comp_init_attrs); + wd_alg_drv_unbind(wd_comp_setting.driver); + wd_dlclose_drv(wd_comp_setting.dlh_list); + wd_comp_setting.dlh_list = NULL; wd_alg_clear_init(&wd_comp_setting.status); }

@@ -315,7 +326,7 @@ int wd_comp_poll_ctx(__u32 idx, __u32 expt, __u32 *count) ctx = config->ctxs + idx;

do { - ret = wd_comp_setting.driver->comp_recv(ctx->ctx, &resp_msg); + ret = wd_comp_setting.driver->recv(ctx->ctx, &resp_msg); if (unlikely(ret < 0)) { if (ret == -WD_HW_EACCESS) WD_ERR("wd comp recv hw error!\n"); @@ -546,8 +557,8 @@ static int wd_comp_sync_job(struct wd_comp_sess *sess, wd_dfx_msg_cnt(config->msg_cnt, WD_CTX_CNT_NUM, idx); ctx = config->ctxs + idx;

- msg_handle.send = wd_comp_setting.driver->comp_send; - msg_handle.recv = wd_comp_setting.driver->comp_recv; + msg_handle.send = wd_comp_setting.driver->send; + msg_handle.recv = wd_comp_setting.driver->recv;

pthread_spin_lock(&ctx->lock); ret = wd_handle_msg_sync(&msg_handle, ctx->ctx, msg, @@ -806,7 +817,7 @@ int wd_do_comp_async(handle_t h_sess, struct wd_comp_req *req) msg->tag = tag; msg->stream_mode = WD_COMP_STATELESS;

- ret = wd_comp_setting.driver->comp_send(ctx->ctx, msg); + ret = wd_comp_setting.driver->send(ctx->ctx, msg); if (unlikely(ret < 0)) { WD_ERR("wd comp send error, ret = %d!\n", ret); goto fail_with_msg;

On 2023/1/6 11:43, Yang Shen Wrote:

在 2022/12/27 16:52, Longfang Liu 写道:

...

According to the logical layering of UADK, the device driver has been updated from the previous fixed binding HiSilicon accelerator to the dynamic registration method through the algorithm linked list method.

After the update, it can support the use of instruction acceleration and third-party device drivers.

Signed-off-by: Longfang Liu liulongfang@huawei.com

Makefile.am             |   4 +-   include/wd_alg.h        |  95 ++++++++++++++   include/wd_alg_common.h |   1 +   libwd.map               |   8 ++   wd_alg.c                | 265 ++++++++++++++++++++++++++++++++++++++++   5 files changed, 371 insertions(+), 2 deletions(-)   create mode 100644 include/wd_alg.h   create mode 100644 wd_alg.c

diff --git a/Makefile.am b/Makefile.am index ee8454b..1ea6d6b 100644 --- a/Makefile.am +++ b/Makefile.am @@ -33,7 +33,7 @@ AM_CFLAGS+= -DUADK_RELEASED_TIME=""Released ${MONTH} ${DAY}, ${YEAR}""   pkginclude_HEADERS = include/wd.h include/wd_cipher.h include/wd_aead.h \             include/wd_comp.h include/wd_dh.h include/wd_digest.h \             include/wd_rsa.h  include/uacce.h include/wd_alg_common.h \ -          include/wd_ecc.h include/wd_sched.h +          include/wd_ecc.h include/wd_sched.h include/wd_alg.h     nobase_pkginclude_HEADERS = v1/wd.h v1/wd_cipher.h v1/wd_aead.h v1/uacce.h v1/wd_dh.h \                v1/wd_digest.h v1/wd_rsa.h v1/wd_bmm.h @@ -41,7 +41,7 @@ nobase_pkginclude_HEADERS = v1/wd.h v1/wd_cipher.h v1/wd_aead.h v1/uacce.h v1/wd   lib_LTLIBRARIES=libwd.la libwd_comp.la libwd_crypto.la libhisi_zip.la \           libhisi_hpre.la libhisi_sec.la   -libwd_la_SOURCES=wd.c wd_mempool.c wd.h        \ +libwd_la_SOURCES=wd.c wd_mempool.c wd.h    wd_alg.c wd_alg.h    \            v1/wd.c v1/wd.h v1/wd_adapter.c v1/wd_adapter.h \            v1/wd_rng.c v1/wd_rng.h    \            v1/wd_rsa.c v1/wd_rsa.h    \ diff --git a/include/wd_alg.h b/include/wd_alg.h new file mode 100644 index 0000000..e369021 --- /dev/null +++ b/include/wd_alg.h @@ -0,0 +1,95 @@ +// SPDX-License-Identifier: Apache-2.0 +/*

• • Copyright 2022 Huawei Technologies Co.,Ltd. All rights reserved.

Now is 2023~ :)

OK,It need to modify.

...

• */

+#ifndef __WD_ALG_H +#define __WD_ALG_H +#include <errno.h> +#include <fcntl.h> +#include <stdbool.h> +#include <stdint.h> +#include <stdio.h> +#include <string.h> +#include <syslog.h> +#include <unistd.h> +#include <asm/types.h>

+#ifdef __cplusplus +extern "C" { +#endif

+#define handle_t uintptr_t +enum alg_priority { +    UADK_ALG_SOFT = 0x0, +    UADK_ALG_CE_INSTR     = 0x1, +    UADK_ALG_SVE_INSTR     = 0x2, +    UADK_ALG_HW    = 0x3 +};

Attention the align.

Ok,

...

+/*

/**

...

• • @drv_name: name of the current device driver
• • @alg_name: name of the algorithm supported by the driver
• • @priority: priority of the type of algorithm supported by the driver
• • @queue_num: number of device queues required by the device to
• *         execute the algorithm business

First, maybe ctx_num is better for UADK has no idea about queue. And then, I have a little doubt about the meaning. Do you use it for the device available ctxs?

If ctx_params is empty, use this as the base ctx amount.

...

• • @op_type_num: number of modes in which the device executes the
• *         algorithm business and requires queues to be executed separately
• • @priv_size: parameter memory size passed between the internal
• *         interfaces of the driver
• • @fallback: soft calculation driver handle when performing soft
• *         calculation supplement
• • @init: callback interface for initializing device drivers
• • @exit: callback interface for destroying device drivers
• • @send: callback interface used to send task packets to
• *        hardware devices.
• • @recv: callback interface used to retrieve the calculation
• *        result of the task   packets from the hardware device.
• • @get_usage: callback interface used to obtain the
• *        utilization rate of hardware devices.
• */

A little advice: 'hardware' is unnecessary.

OK,

...

+struct wd_alg_driver { +    const char    *drv_name; +    const char    *alg_name; +    int    priority; +    int    queue_num; +    int    op_type_num; +    int    priv_size; +    handle_t fallback;

+    int (*init)(void *conf, void *priv); +    void (*exit)(void *priv); +    int (*send)(handle_t ctx, void *drv_msg); +    int (*recv)(handle_t ctx, void *drv_msg); +    int  (*get_usage)(void *param); +};

Attention the align again.

OK,

...

+int wd_alg_driver_register(struct wd_alg_driver *drv); +void wd_alg_driver_unregister(struct wd_alg_driver *drv);

+struct wd_alg_list { +    const char    *alg_name; +    const char    *drv_name; +    int    priority; +    bool    available; +    int    refcnt;

+    struct wd_alg_driver *drv; +    struct wd_alg_list *next; +};

adjust the sort.

OK,

...

+struct wd_alg_driver *wd_request_drv(const char    *alg_name, bool hw_mask); +void wd_release_drv(struct wd_alg_driver *drv);

+bool wd_drv_alg_support(const char *alg_name, +    struct wd_alg_driver *drv); +void wd_enable_drv(struct wd_alg_driver *drv); +void wd_disable_drv(struct wd_alg_driver *drv);

+struct wd_alg_list *wd_get_alg_head(void);

+#ifdef __cplusplus +} +#endif

+#endif diff --git a/include/wd_alg_common.h b/include/wd_alg_common.h index 56539cc..d04b046 100644 --- a/include/wd_alg_common.h +++ b/include/wd_alg_common.h @@ -10,6 +10,7 @@   #include <pthread.h>   #include <stdbool.h>   #include "wd.h" +#include "wd_alg.h"     #ifdef __cplusplus   extern "C" { diff --git a/libwd.map b/libwd.map index 459f9ba..5522ec0 100644 --- a/libwd.map +++ b/libwd.map @@ -41,5 +41,13 @@ global:       wd_add_dev_to_list;       wd_find_dev_by_numa;   +    wd_alg_driver_register; +    wd_alg_driver_unregister; +    wd_request_drv; +    wd_release_drv; +    wd_drv_alg_support; +    wd_enable_drv; +    wd_disable_drv; +    wd_get_alg_head;   local: *;   }; diff --git a/wd_alg.c b/wd_alg.c new file mode 100644 index 0000000..197af6f --- /dev/null +++ b/wd_alg.c @@ -0,0 +1,265 @@ +/* SPDX-License-Identifier: Apache-2.0 */ +/*

• • Copyright 2022 Huawei Technologies Co.,Ltd. All rights reserved.
• */

+#define _GNU_SOURCE +#include <ctype.h> +#include <dirent.h> +#include <errno.h> +#include <stdbool.h> +#include <stdlib.h> +#include <string.h> +#include <pthread.h>

+#include "wd.h" +#include "wd_alg.h"

+#define SYS_CLASS_DIR            "/sys/class/uacce" +static struct wd_alg_list alg_list_head; +static struct wd_alg_list *alg_list_tail = &alg_list_head;

+static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;

+static bool wd_check_accel_dev(const char *drv_name)

Do you mean dev_name?

In this framework, drv_name and dev_name need to be consistent, here we can change it to dev_name.

...

+{ +    struct dirent *dev_dir; +    DIR *wd_class;

+    wd_class = opendir(SYS_CLASS_DIR); +    if (!wd_class) { +        WD_ERR("UADK framework isn't enabled in system!\n"); +        return NULL;

return false

OK,

...

+    }

+    while ((dev_dir = readdir(wd_class)) != NULL) { +        if (!strncmp(dev_dir->d_name, ".", LINUX_CRTDIR_SIZE) || +             !strncmp(dev_dir->d_name, "..", LINUX_PRTDIR_SIZE)) +            continue;

+        if (!strncmp(dev_dir->d_name, drv_name, strlen(drv_name))) { +            closedir(wd_class); +            return true; +        } +    } +    closedir(wd_class);

+    return false; +}

+int wd_alg_driver_register(struct wd_alg_driver *drv) +{ +    struct wd_alg_list *new_alg;

+    if (!drv) { +        WD_ERR("invalid: register drv is NULL!\n"); +        return -WD_EINVAL; +    }

+    new_alg = calloc(1, sizeof(struct wd_alg_list)); +    if (!new_alg) { +        WD_ERR("failed to alloc alg driver memory!\n"); +        return -WD_ENOMEM; +    }

+    new_alg->alg_name = drv->alg_name; +    new_alg->drv_name = drv->drv_name; +    new_alg->priority = drv->priority; +    new_alg->drv = drv; +    new_alg->refcnt = 0; +    new_alg->next = NULL;

+    if (drv->priority == UADK_ALG_HW) { +        /* If not find dev, remove this driver node */ +        new_alg->available = wd_check_accel_dev(drv->drv_name); +        if (!new_alg->available) { +            free(new_alg); +            WD_ERR("failed to find alg driver's device!\n"); +            return -WD_ENODEV; +        } +    } else { +        /* Should find the CPU if not support SVE or CE */ +        new_alg->available = true; +    }

+    pthread_mutex_lock(&mutex); +    alg_list_tail->next = new_alg; +    alg_list_tail = new_alg; +    pthread_mutex_unlock(&mutex);

+    return 0; +}

+void wd_alg_driver_unregister(struct wd_alg_driver *drv) +{ +    struct wd_alg_list *npre = &alg_list_head; +    struct wd_alg_list *pnext = npre->next;

+    /* Alg driver list has no drivers */ +    if (!pnext || !drv) +        return;

+    pthread_mutex_lock(&mutex); +    while (pnext) { +        if (!strcmp(drv->alg_name, pnext->alg_name) && +             !strcmp(drv->drv_name, pnext->drv_name) && +             drv->priority == pnext->priority) { +            break; +        } +        npre = pnext; +        pnext = pnext->next; +    }

+    /* The current algorithm is not registered */ +    if (!pnext) { +        pthread_mutex_unlock(&mutex); +        return; +    }

+    /* Used to locate the problem and ensure symmetrical use driver */ +    if (pnext->refcnt > 0) +        WD_ERR("driver<%s> still in used: %d\n", pnext->drv_name, pnext->refcnt);

+    if (pnext == alg_list_tail) +        alg_list_tail = npre;

+    npre->next = pnext->next; +    free(pnext); +    pthread_mutex_unlock(&mutex); +}

+struct wd_alg_list *wd_get_alg_head(void) +{ +    return &alg_list_head; +}

+bool wd_drv_alg_support(const char *alg_name, +    struct wd_alg_driver *drv) +{ +    struct wd_alg_list *head = &alg_list_head; +    struct wd_alg_list *pnext = head->next;

+    while (pnext) { +        if (!strcmp(alg_name, pnext->alg_name) && +             !strcmp(drv->drv_name, pnext->drv_name)) {

Does priority need to check?

There is no need to check priority here, because it is used to match whether the current driver can support the current algorithm. The driver is already queried.

Thanks, Longfang.

...

+            return true; +        } +        pnext = pnext->next; +    }

+    return false; +}

+void wd_enable_drv(struct wd_alg_driver *drv) +{ +    struct wd_alg_list *head = &alg_list_head; +    struct wd_alg_list *pnext = head->next;

+    if (!pnext || !drv) +        return;

+    pthread_mutex_lock(&mutex); +    while (pnext) { +        if (!strcmp(drv->alg_name, pnext->alg_name) && +             !strcmp(drv->drv_name, pnext->drv_name) && +             drv->priority == pnext->priority) { +            break; +        } +        pnext = pnext->next; +    }

+    if (drv->priority == UADK_ALG_HW) { +        /* If not find dev, remove this driver node */ +        pnext->available = wd_check_accel_dev(drv->drv_name); +    } else { +        /* Should find the CPU if not support SVE or CE */ +        pnext->available = true; +    } +    pthread_mutex_unlock(&mutex); +}

+void wd_disable_drv(struct wd_alg_driver *drv) +{ +    struct wd_alg_list *head = &alg_list_head; +    struct wd_alg_list *pnext = head->next;

+    if (!pnext || !drv) +        return;

+    pthread_mutex_lock(&mutex); +    while (pnext) { +        if (!strcmp(drv->alg_name, pnext->alg_name) && +             !strcmp(drv->drv_name, pnext->drv_name) && +             drv->priority == pnext->priority) { +            break; +        } +        pnext = pnext->next; +    }

+    pnext->available = false; +    pthread_mutex_unlock(&mutex); +}

+struct wd_alg_driver *wd_request_drv(const char *alg_name, bool hw_mask) +{ +    struct wd_alg_list *head = &alg_list_head; +    struct wd_alg_list *pnext = head->next; +    struct wd_alg_list *select_node = NULL; +    struct wd_alg_driver *drv = NULL; +    int tmp_priority = -1;

+    if (!pnext || !alg_name) { +        WD_ERR("invalid: request alg param is error!\n"); +        return NULL; +    }

+    /* Check the list to get an best driver */ +    pthread_mutex_lock(&mutex); +    while (pnext) { +        /* hw_mask true mean not to used hardware dev */ +        if (hw_mask && pnext->drv->priority == UADK_ALG_HW) { +            pnext = pnext->next; +            continue; +        }

+        if (!strcmp(alg_name, pnext->alg_name) && pnext->available && +              pnext->drv->priority > tmp_priority) { +            tmp_priority = pnext->drv->priority; +            select_node = pnext; +            drv = pnext->drv; +        } +        pnext = pnext->next; +    }

+    if (select_node) +        select_node->refcnt++; +    pthread_mutex_unlock(&mutex);

+    return drv; +}

+void wd_release_drv(struct wd_alg_driver *drv) +{ +    struct wd_alg_list *head = &alg_list_head; +    struct wd_alg_list *pnext = head->next; +    struct wd_alg_list *select_node = NULL;

+    if (!pnext || !drv) +        return;

+    pthread_mutex_lock(&mutex); +    while (pnext) { +        if (!strcmp(drv->alg_name, pnext->alg_name) && +            !strcmp(drv->drv_name, pnext->drv_name) && +            drv->priority == pnext->priority) { +            select_node = pnext; +            break; +        } +        pnext = pnext->next; +    }

+    if (select_node && select_node->refcnt > 0) +        select_node->refcnt--; +    pthread_mutex_unlock(&mutex); +}

---

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