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RDMA/rxe: Optimize the mr pool struct 

Based on the commit c9f4c69583 ("RDMA/rxe: Reverse the sense of
RXE_POOL_NO_ALLOC"), only the mr pool uses the RXE_POOL_ALLOC, As such,
replace this flags with pool type to save memory.

Link: https://lore.kernel.org/r/20220428041028.1363139-1-yanjun.zhu@linux.dev
Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Zhu Yanjun 2022-04-28 00:10:28 -04:00 committed by Jason Gunthorpe
parent db5dfbf5b2
commit 08d709d5e1
2 changed files with 3 additions and 11 deletions
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9
drivers/infiniband/sw/rxe/rxe_pool.c
View File

@ -13,7 +13,6 @@ static const struct rxe_type_info {
size_t size;
size_t elem_offset;
void (*cleanup)(struct rxe_pool_elem *elem);
enum rxe_pool_flags flags;
u32 min_index;
u32 max_index;
u32 max_elem;
@ -73,7 +72,6 @@ static const struct rxe_type_info {
.size = sizeof(struct rxe_mr),
.elem_offset = offsetof(struct rxe_mr, elem),
.cleanup = rxe_mr_cleanup,
.flags = RXE_POOL_ALLOC,
.min_index = RXE_MIN_MR_INDEX,
.max_index = RXE_MAX_MR_INDEX,
.max_elem = RXE_MAX_MR_INDEX - RXE_MIN_MR_INDEX + 1,
@ -101,7 +99,6 @@ void rxe_pool_init(struct rxe_dev *rxe, struct rxe_pool *pool,
pool->max_elem = info->max_elem;
pool->elem_size = ALIGN(info->size, RXE_POOL_ALIGN);
pool->elem_offset = info->elem_offset;
pool->flags = info->flags;
pool->cleanup = info->cleanup;
atomic_set(&pool->num_elem, 0);
@ -122,7 +119,7 @@ void *rxe_alloc(struct rxe_pool *pool)
void *obj;
int err;
if (WARN_ON(!(pool->flags & RXE_POOL_ALLOC)))
if (WARN_ON(!(pool->type == RXE_TYPE_MR)))
return NULL;
if (atomic_inc_return(&pool->num_elem) > pool->max_elem)
@ -156,7 +153,7 @@ int __rxe_add_to_pool(struct rxe_pool *pool, struct rxe_pool_elem *elem)
{
int err;
if (WARN_ON(pool->flags & RXE_POOL_ALLOC))
if (WARN_ON(pool->type == RXE_TYPE_MR))
return -EINVAL;
if (atomic_inc_return(&pool->num_elem) > pool->max_elem)
@ -206,7 +203,7 @@ static void rxe_elem_release(struct kref *kref)
if (pool->cleanup)
pool->cleanup(elem);
if (pool->flags & RXE_POOL_ALLOC)
if (pool->type == RXE_TYPE_MR)
kfree(elem->obj);
atomic_dec(&pool->num_elem);

5
drivers/infiniband/sw/rxe/rxe_pool.h
View File

@ -7,10 +7,6 @@
#ifndef RXE_POOL_H
#define RXE_POOL_H
enum rxe_pool_flags {
RXE_POOL_ALLOC = BIT(1),
};
enum rxe_elem_type {
RXE_TYPE_UC,
RXE_TYPE_PD,
@ -35,7 +31,6 @@ struct rxe_pool {
struct rxe_dev *rxe;
const char *name;
void (*cleanup)(struct rxe_pool_elem *elem);
enum rxe_pool_flags flags;
enum rxe_elem_type type;
unsigned int max_elem;