fmr_pool.c File Reference

#include <linux/errno.h>
#include <linux/spinlock.h>
#include <linux/export.h>
#include <linux/slab.h>
#include <linux/jhash.h>
#include <linux/kthread.h>
#include <rdma/ib_fmr_pool.h>
#include "core_priv.h"

Go to the source code of this file.

Data Structures
struct	ib_fmr_pool

Macros
#define	PFX   "fmr_pool: "

Enumerations
enum	{ IB_FMR_MAX_REMAPS = 32, IB_FMR_HASH_BITS = 8, IB_FMR_HASH_SIZE = 1 << IB_FMR_HASH_BITS, IB_FMR_HASH_MASK = IB_FMR_HASH_SIZE - 1 }

Functions
struct ib_fmr_pool *	ib_create_fmr_pool (struct ib_pd *pd, struct ib_fmr_pool_param *params)
	EXPORT_SYMBOL (ib_create_fmr_pool)
void	ib_destroy_fmr_pool (struct ib_fmr_pool *pool)
	EXPORT_SYMBOL (ib_destroy_fmr_pool)
int	ib_flush_fmr_pool (struct ib_fmr_pool *pool)
	EXPORT_SYMBOL (ib_flush_fmr_pool)
struct ib_pool_fmr *	ib_fmr_pool_map_phys (struct ib_fmr_pool *pool_handle, u64 *page_list, int list_len, u64 io_virtual_address)
	EXPORT_SYMBOL (ib_fmr_pool_map_phys)
int	ib_fmr_pool_unmap (struct ib_pool_fmr *fmr)
	EXPORT_SYMBOL (ib_fmr_pool_unmap)

Macro Definition Documentation

#define PFX   "fmr_pool: "

Definition at line 45 of file fmr_pool.c.

Enumeration Type Documentation

anonymous enum

Enumerator:

IB_FMR_MAX_REMAPS
IB_FMR_HASH_BITS
IB_FMR_HASH_SIZE
IB_FMR_HASH_MASK

Definition at line 47 of file fmr_pool.c.

Function Documentation

EXPORT_SYMBOL

(

ib_create_fmr_pool

)

EXPORT_SYMBOL

(

ib_destroy_fmr_pool

)

EXPORT_SYMBOL

(

ib_flush_fmr_pool

)

EXPORT_SYMBOL

(

ib_fmr_pool_map_phys

)

EXPORT_SYMBOL

(

ib_fmr_pool_unmap

)

struct ib_fmr_pool* ib_create_fmr_pool ( struct ib_pd *  pd, struct ib_fmr_pool_param *  params  )

read

ib_create_fmr_pool - Create an FMR pool :Protection domain for FMRs :FMR pool parameters

Create a pool of FMRs. Return value is pointer to new pool or error code if creation failed.

Definition at line 211 of file fmr_pool.c.

void ib_destroy_fmr_pool

(

struct ib_fmr_pool *

pool

)

ib_destroy_fmr_pool - Free FMR pool :FMR pool to free

Destroy an FMR pool and free all associated resources.

Definition at line 359 of file fmr_pool.c.

int ib_flush_fmr_pool

(

struct ib_fmr_pool *

pool

)

ib_flush_fmr_pool - Invalidate all unmapped FMRs :FMR pool to flush

Ensure that all unmapped FMRs are fully invalidated.

Definition at line 397 of file fmr_pool.c.

struct ib_pool_fmr* ib_fmr_pool_map_phys ( struct ib_fmr_pool *  pool_handle, u64 *  page_list, int  list_len, u64  io_virtual_address  )

read

ib_fmr_pool_map_phys - :FMR pool to allocate FMR from :List of pages to map :Number of pages in :I/O virtual address for new FMR

Map an FMR from an FMR pool.

Definition at line 435 of file fmr_pool.c.

int ib_fmr_pool_unmap

(

struct ib_pool_fmr *

fmr

)

ib_fmr_pool_unmap - Unmap FMR :FMR to unmap

Unmap an FMR. The FMR mapping may remain valid until the FMR is reused (or until ib_flush_fmr_pool() is called).

Definition at line 513 of file fmr_pool.c.