ring.c File Reference

#include <kernel/cpu/syscall.h>
#include <kernel/fs/file_table.h>
#include <kernel/fs/path.h>
#include <kernel/io/ring.h>
#include <kernel/io/irp.h>
#include <kernel/log/log.h>
#include <kernel/log/panic.h>
#include <kernel/mem/paging_types.h>
#include <kernel/mem/pmm.h>
#include <kernel/mem/vmm.h>
#include <kernel/proc/process.h>
#include <kernel/sched/clock.h>
#include <errno.h>
#include <sys/ioring.h>
#include <sys/list.h>
#include <time.h>

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Data Structures
struct	ioring_ctx_notify_ctx_t

Functions
static uint64_t	ioring_ctx_acquire (ioring_ctx_t *ctx)
static void	ioring_ctx_release (ioring_ctx_t *ctx)
static uint64_t	ioring_ctx_map (ioring_ctx_t *ctx, process_t *process, ioring_id_t id, ioring_t *userRing, void *address, size_t sentries, size_t centries)
static uint64_t	ioring_ctx_unmap (ioring_ctx_t *ctx)
static uint64_t	ioring_ctx_avail_cqes (ioring_ctx_t *ctx)
void	ioring_ctx_init (ioring_ctx_t *ctx)
	Initialize a I/O context.
void	ioring_ctx_deinit (ioring_ctx_t *ctx)
	Deinitialize a I/O context.
static void	ioring_ctx_dispatch (irp_t *irp)
static void	ioring_ctx_complete (irp_t *irp, void *_ptr)
static uint64_t	nop_cancel (irp_t *irp)
static uint64_t	ioring_ctx_sqe_pop (ioring_ctx_t *ctx, ioring_ctx_notify_ctx_t *notify)
uint64_t	ioring_ctx_notify (ioring_ctx_t *ctx, size_t amount, size_t wait)
	Notify the context of new SQEs.
	SYSCALL_DEFINE (SYS_SETUP, ioring_id_t, ioring_t *userRing, void *address, size_t sentries, size_t centries)
	SYSCALL_DEFINE (SYS_TEARDOWN, uint64_t, ioring_id_t id)
	SYSCALL_DEFINE (SYS_ENTER, uint64_t, ioring_id_t id, size_t amount, size_t wait)

Function Documentation

ioring_ctx_acquire()

static uint64_t ioring_ctx_acquire ( ioring_ctx_t *  ctx )

inlinestatic

Definition at line 19 of file ring.c.

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ioring_ctx_release()

static void ioring_ctx_release ( ioring_ctx_t *  ctx )

inlinestatic

Definition at line 30 of file ring.c.

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ioring_ctx_map()

static uint64_t ioring_ctx_map ( ioring_ctx_t *  ctx, process_t *  process, ioring_id_t  id, ioring_t *  userRing, void *  address, size_t  sentries, size_t  centries  )

inlinestatic

Definition at line 35 of file ring.c.

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ioring_ctx_unmap()

static uint64_t ioring_ctx_unmap ( ioring_ctx_t *  ctx )

inlinestatic

Definition at line 126 of file ring.c.

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ioring_ctx_avail_cqes()

static uint64_t ioring_ctx_avail_cqes ( ioring_ctx_t *  ctx )

inlinestatic

Definition at line 138 of file ring.c.

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ioring_ctx_dispatch()

static void ioring_ctx_dispatch ( irp_t *  irp )

static

Definition at line 251 of file ring.c.

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ioring_ctx_complete()

static void ioring_ctx_complete ( irp_t *  irp, void *  _ptr  )

static

Todo:

Handle overflow properly.

Definition at line 188 of file ring.c.

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nop_cancel()

static uint64_t nop_cancel ( irp_t *  irp )

static

Definition at line 245 of file ring.c.

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ioring_ctx_sqe_pop()

static uint64_t ioring_ctx_sqe_pop ( ioring_ctx_t *  ctx, ioring_ctx_notify_ctx_t *  notify  )

static

Definition at line 306 of file ring.c.

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SYSCALL_DEFINE() [1/3]

SYSCALL_DEFINE	(	SYS_SETUP	,
		ioring_id_t	,
		ioring_t *	userRing,
		void *	address,
		size_t	sentries,
		size_t	centries
	)

Definition at line 405 of file ring.c.

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SYSCALL_DEFINE() [2/3]

SYSCALL_DEFINE	(	SYS_TEARDOWN	,
		uint64_t	,
		ioring_id_t	id
	)

Definition at line 443 of file ring.c.

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SYSCALL_DEFINE() [3/3]

SYSCALL_DEFINE	(	SYS_ENTER	,
		uint64_t	,
		ioring_id_t	id,
		size_t	amount,
		size_t	wait
	)

Definition at line 483 of file ring.c.

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