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mcctrl: thread pool based system call offload handling

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This commit is contained in:
Balazs Gerofi
2016-08-08 19:43:05 +09:00
parent 5fbeee953a
commit fb84d4ef11
8 changed files with 395 additions and 222 deletions
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40
executer/kernel/mcctrl/mcctrl.h
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@ -41,6 +41,7 @@
#include <ikc/master.h>
#include <ihk/msr.h>
#include <linux/semaphore.h>
#include <linux/rwlock.h>
#include <linux/threads.h>
#include "sysfs.h"
@ -154,8 +155,11 @@ struct syscall_params {
struct wait_queue_head_list_node {
struct list_head list;
wait_queue_head_t wq_syscall;
int pid;
struct task_struct *task;
/* Denotes an exclusive wait for requester TID rtid */
int rtid;
int req;
struct ikc_scd_packet packet;
};
struct mcctrl_channel {
@ -163,15 +167,29 @@ struct mcctrl_channel {
struct syscall_params param;
struct ikc_scd_init_param init;
void *dma_buf;
struct list_head wq_list;
ihk_spinlock_t wq_list_lock;
};
struct mcctrl_per_thread_data {
struct list_head hash;
struct task_struct *task;
void *data;
};
#define MCCTRL_PER_THREAD_DATA_HASH_SHIFT 8
#define MCCTRL_PER_THREAD_DATA_HASH_SIZE (1 << MCCTRL_PER_THREAD_DATA_HASH_SHIFT)
#define MCCTRL_PER_THREAD_DATA_HASH_MASK (MCCTRL_PER_THREAD_DATA_HASH_SIZE - 1)
struct mcctrl_per_proc_data {
struct list_head list;
int pid;
unsigned long rpgtable; /* per process, not per OS */
struct list_head wq_list;
struct list_head wq_list_exact;
ihk_spinlock_t wq_list_lock;
struct list_head per_thread_data_hash[MCCTRL_PER_THREAD_DATA_HASH_SIZE];
rwlock_t per_thread_data_hash_lock[MCCTRL_PER_THREAD_DATA_HASH_SIZE];
};
struct sysfsm_req {
@ -273,12 +291,16 @@ int mcctrl_ikc_is_valid_thread(ihk_os_t os, int cpu);
ihk_os_t osnum_to_os(int n);
/* syscall.c */
int init_peer_channel_registry(struct mcctrl_usrdata *ud);
void destroy_peer_channel_registry(struct mcctrl_usrdata *ud);
int register_peer_channel(struct mcctrl_usrdata *ud, void *key, struct mcctrl_channel *ch);
int deregister_peer_channel(struct mcctrl_usrdata *ud, void *key, struct mcctrl_channel *ch);
struct mcctrl_channel *get_peer_channel(struct mcctrl_usrdata *ud, void *key);
int __do_in_kernel_syscall(ihk_os_t os, struct mcctrl_channel *c, struct syscall_request *sc);
struct mcctrl_per_proc_data *mcctrl_get_per_proc_data(
struct mcctrl_usrdata *ud,
int pid);
int mcctrl_add_per_thread_data(struct mcctrl_per_proc_data* ppd,
struct task_struct *task, void *data);
int mcctrl_delete_per_thread_data(struct mcctrl_per_proc_data* ppd,
struct task_struct *task);
struct mcctrl_per_thread_data *mcctrl_get_per_thread_data(
struct mcctrl_per_proc_data *ppd, struct task_struct *task);
#define PROCFS_NAME_MAX 1000