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Message-Id: <28648c91910327fe712f9f178e80948ecc2224c4.1640862842.git.leonro@nvidia.com>
Date: Thu, 30 Dec 2021 13:23:24 +0200
From: Leon Romanovsky <leon@...nel.org>
To: Jason Gunthorpe <jgg@...dia.com>
Cc: Aharon Landau <aharonl@...dia.com>, linux-kernel@...r.kernel.org,
linux-rdma@...r.kernel.org
Subject: [PATCH rdma-next v1 7/7] RDMA/mlx5: Rename the mkey cache variables and functions
From: Aharon Landau <aharonl@...dia.com>
After replacing the MR cache with an Mkey cache, rename the variables
and functions to fit the new meaning.
Signed-off-by: Aharon Landau <aharonl@...dia.com>
Signed-off-by: Leon Romanovsky <leonro@...dia.com>
---
drivers/infiniband/hw/mlx5/main.c | 4 +-
drivers/infiniband/hw/mlx5/mlx5_ib.h | 20 +++---
drivers/infiniband/hw/mlx5/mr.c | 97 ++++++++++++++--------------
drivers/infiniband/hw/mlx5/odp.c | 8 +--
include/linux/mlx5/driver.h | 4 +-
5 files changed, 67 insertions(+), 66 deletions(-)
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 5ec8bd2f0b2f..74f32b563109 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -4034,7 +4034,7 @@ static void mlx5_ib_stage_pre_ib_reg_umr_cleanup(struct mlx5_ib_dev *dev)
{
int err;
- err = mlx5_mr_cache_cleanup(dev);
+ err = mlx5_mkey_cache_cleanup(dev);
if (err)
mlx5_ib_warn(dev, "mr cache cleanup failed\n");
@@ -4131,7 +4131,7 @@ static int mlx5_ib_stage_post_ib_reg_umr_init(struct mlx5_ib_dev *dev)
dev->umrc.pd = pd;
sema_init(&dev->umrc.sem, MAX_UMR_WR);
- ret = mlx5_mr_cache_init(dev);
+ ret = mlx5_mkey_cache_init(dev);
if (ret) {
mlx5_ib_warn(dev, "mr cache init failed %d\n", ret);
goto error_4;
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index 8ebe1edce190..93065492dcb8 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -752,12 +752,12 @@ struct mlx5_cache_ent {
u8 fill_to_high_water:1;
/*
- * - total_mrs is available_mrs plus all in use MRs that could be
+ * - total_mkeys is stored mkeys plus all in use mkeys that could be
* returned to the cache.
- * - limit is the low water mark for available_mrs, 2* limit is the
+ * - limit is the low water mark for available_mkeys, 2 * limit is the
* upper water mark.
*/
- u32 total_mrs;
+ u32 total_mkeys;
u32 limit;
/* Statistics */
@@ -778,7 +778,7 @@ struct mlx5_async_create_mkey {
u32 mkey;
};
-struct mlx5_mr_cache {
+struct mlx5_mkey_cache {
struct workqueue_struct *wq;
struct rb_root cache_root;
struct mutex cache_lock;
@@ -1081,7 +1081,7 @@ struct mlx5_ib_dev {
struct mlx5_ib_resources devr;
atomic_t mkey_var;
- struct mlx5_mr_cache cache;
+ struct mlx5_mkey_cache cache;
struct timer_list delay_timer;
/* Prevents soft lock on massive reg MRs */
struct mutex slow_path_mutex;
@@ -1328,15 +1328,15 @@ void mlx5_ib_populate_pas(struct ib_umem *umem, size_t page_size, __be64 *pas,
u64 access_flags);
void mlx5_ib_copy_pas(u64 *old, u64 *new, int step, int num);
int mlx5_ib_get_cqe_size(struct ib_cq *ibcq);
-int mlx5_mr_cache_init(struct mlx5_ib_dev *dev);
-int mlx5_mr_cache_cleanup(struct mlx5_ib_dev *dev);
+int mlx5_mkey_cache_init(struct mlx5_ib_dev *dev);
+int mlx5_mkey_cache_cleanup(struct mlx5_ib_dev *dev);
int mlx5_acc_flags_to_ent_flags(struct mlx5_ib_dev *dev, int access_flags);
void mlx5_set_cache_mkc(struct mlx5_ib_dev *dev, void *mkc, int access_flags,
unsigned int access_mode, unsigned int page_shift);
-struct mlx5_ib_mr *mlx5_mr_cache_alloc(struct mlx5_ib_dev *dev, int *in,
- int inlen, unsigned int ndescs,
- unsigned int access_mode);
+struct mlx5_ib_mr *mlx5_mkey_cache_alloc(struct mlx5_ib_dev *dev, int *in,
+ int inlen, unsigned int ndescs,
+ unsigned int access_mode);
int mlx5_ib_check_mr_status(struct ib_mr *ibmr, u32 check_mask,
struct ib_mr_status *mr_status);
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index 43e993b360d8..827de5fa244d 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -123,7 +123,7 @@ mlx5_ib_create_mkey_cb(struct mlx5_ib_dev *dev, u32 *mkey,
create_mkey_callback, context);
}
-static int mr_cache_max_order(struct mlx5_ib_dev *dev);
+static int mkey_cache_max_order(struct mlx5_ib_dev *dev);
static void queue_adjust_cache_locked(struct mlx5_cache_ent *ent);
static bool umr_can_use_indirect_mkey(struct mlx5_ib_dev *dev)
@@ -169,7 +169,7 @@ static void create_mkey_callback(int status, struct mlx5_async_work *context)
GFP_ATOMIC);
WARN_ON(old != NULL);
ent->stored++;
- ent->total_mrs++;
+ ent->total_mkeys++;
/* If we are doing fill_to_high_water then keep going. */
queue_adjust_cache_locked(ent);
xa_unlock_irqrestore(&ent->mkeys, flags);
@@ -300,7 +300,7 @@ static int add_keys(struct mlx5_cache_ent *ent, unsigned int num)
return err;
}
-static void remove_cache_mr_locked(struct mlx5_cache_ent *ent)
+static void remove_cache_mkey_locked(struct mlx5_cache_ent *ent)
{
void *old, *xa_mkey;
@@ -313,15 +313,15 @@ static void remove_cache_mr_locked(struct mlx5_cache_ent *ent)
ent->reserved--;
old = __xa_erase(&ent->mkeys, ent->reserved);
WARN_ON(old != NULL);
- ent->total_mrs--;
+ ent->total_mkeys--;
xa_unlock_irq(&ent->mkeys);
mlx5_core_destroy_mkey(ent->dev->mdev, (u32)xa_to_value(xa_mkey));
xa_lock_irq(&ent->mkeys);
}
-static int resize_available_mrs(struct mlx5_cache_ent *ent, unsigned int target,
- bool limit_fill)
- __acquires(&ent->lock) __releases(&ent->lock)
+static int resize_available_mkeys(struct mlx5_cache_ent *ent,
+ unsigned int target, bool limit_fill)
+ __acquires(&ent->lock) __releases(&ent->lock)
{
int err;
@@ -344,7 +344,7 @@ static int resize_available_mrs(struct mlx5_cache_ent *ent, unsigned int target,
} else
return 0;
} else {
- remove_cache_mr_locked(ent);
+ remove_cache_mkey_locked(ent);
}
}
}
@@ -361,22 +361,22 @@ static ssize_t size_write(struct file *filp, const char __user *buf,
return err;
/*
- * Target is the new value of total_mrs the user requests, however we
+ * Target is the new value of total_mkeys the user requests, however we
* cannot free MRs that are in use. Compute the target value for
- * available_mrs.
+ * available_mkeys.
*/
xa_lock_irq(&ent->mkeys);
- if (target < ent->total_mrs - ent->stored) {
+ if (target < ent->total_mkeys - ent->stored) {
err = -EINVAL;
goto err_unlock;
}
- target = target - (ent->total_mrs - ent->stored);
+ target = target - (ent->total_mkeys - ent->stored);
if (target < ent->limit || target > ent->limit*2) {
err = -EINVAL;
goto err_unlock;
}
- err = resize_available_mrs(ent, target, false);
+ err = resize_available_mkeys(ent, target, false);
if (err)
goto err_unlock;
xa_unlock_irq(&ent->mkeys);
@@ -395,7 +395,7 @@ static ssize_t size_read(struct file *filp, char __user *buf, size_t count,
char lbuf[20];
int err;
- err = snprintf(lbuf, sizeof(lbuf), "%d\n", ent->total_mrs);
+ err = snprintf(lbuf, sizeof(lbuf), "%d\n", ent->total_mkeys);
if (err < 0)
return err;
@@ -426,7 +426,7 @@ static ssize_t limit_write(struct file *filp, const char __user *buf,
*/
xa_lock_irq(&ent->mkeys);
ent->limit = var;
- err = resize_available_mrs(ent, 0, true);
+ err = resize_available_mkeys(ent, 0, true);
xa_unlock_irq(&ent->mkeys);
if (err)
return err;
@@ -454,7 +454,7 @@ static const struct file_operations limit_fops = {
.read = limit_read,
};
-static bool someone_adding(struct mlx5_mr_cache *cache)
+static bool someone_adding(struct mlx5_mkey_cache *cache)
{
struct mlx5_cache_ent *ent;
struct rb_node *node;
@@ -510,7 +510,7 @@ static void queue_adjust_cache_locked(struct mlx5_cache_ent *ent)
static void __cache_work_func(struct mlx5_cache_ent *ent)
{
struct mlx5_ib_dev *dev = ent->dev;
- struct mlx5_mr_cache *cache = &dev->cache;
+ struct mlx5_mkey_cache *cache = &dev->cache;
int err;
xa_lock_irq(&ent->mkeys);
@@ -563,7 +563,7 @@ static void __cache_work_func(struct mlx5_cache_ent *ent)
goto out;
if (need_delay)
queue_delayed_work(cache->wq, &ent->dwork, 300 * HZ);
- remove_cache_mr_locked(ent);
+ remove_cache_mkey_locked(ent);
queue_adjust_cache_locked(ent);
}
out:
@@ -586,7 +586,7 @@ static void cache_work_func(struct work_struct *work)
__cache_work_func(ent);
}
-static int mlx5_cache_ent_insert_locked(struct mlx5_mr_cache *cache,
+static int mlx5_cache_ent_insert_locked(struct mlx5_mkey_cache *cache,
struct mlx5_cache_ent *ent)
{
struct rb_node **new = &cache->cache_root.rb_node, *parent = NULL;
@@ -621,7 +621,7 @@ static int mlx5_cache_ent_insert_locked(struct mlx5_mr_cache *cache,
}
static struct mlx5_cache_ent *
-mlx5_cache_find_smallest_ent(struct mlx5_mr_cache *cache, void *mkc,
+mlx5_cache_find_smallest_ent(struct mlx5_mkey_cache *cache, void *mkc,
unsigned int lower_bound, unsigned int upper_bound)
{
struct rb_node *node = cache->cache_root.rb_node;
@@ -675,7 +675,7 @@ static void mlx5_ent_get_mkey_locked(struct mlx5_cache_ent *ent,
if (!ent->is_tmp)
mr->mmkey.cache_ent = ent;
else {
- ent->total_mrs--;
+ ent->total_mkeys--;
cancel_delayed_work(&ent->dev->cache.remove_ent_dwork);
queue_delayed_work(ent->dev->cache.wq,
&ent->dev->cache.remove_ent_dwork,
@@ -683,7 +683,7 @@ static void mlx5_ent_get_mkey_locked(struct mlx5_cache_ent *ent,
}
}
-static bool mlx5_cache_get_mkey(struct mlx5_mr_cache *cache, void *mkc,
+static bool mlx5_cache_get_mkey(struct mlx5_mkey_cache *cache, void *mkc,
unsigned int ndescs, struct mlx5_ib_mr *mr)
{
size_t size = MLX5_ST_SZ_BYTES(mkc);
@@ -734,9 +734,9 @@ static bool mlx5_cache_get_mkey(struct mlx5_mr_cache *cache, void *mkc,
return false;
}
-struct mlx5_ib_mr *mlx5_mr_cache_alloc(struct mlx5_ib_dev *dev, int *in,
- int inlen, unsigned int ndescs,
- unsigned int access_mode)
+struct mlx5_ib_mr *mlx5_mkey_cache_alloc(struct mlx5_ib_dev *dev, int *in,
+ int inlen, unsigned int ndescs,
+ unsigned int access_mode)
{
struct mlx5_ib_mr *mr;
void *mkc;
@@ -770,7 +770,7 @@ struct mlx5_ib_mr *mlx5_mr_cache_alloc(struct mlx5_ib_dev *dev, int *in,
return ERR_PTR(err);
}
-static void mlx5_mr_cache_free(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr)
+static void mlx5_mkey_cache_free(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr)
{
struct mlx5_cache_ent *ent = mr->mmkey.cache_ent;
void *old;
@@ -794,7 +794,7 @@ static void clean_keys(struct mlx5_ib_dev *dev, struct mlx5_cache_ent *ent)
ent->stored--;
xa_mkey = __xa_erase(&ent->mkeys, ent->stored);
WARN_ON(xa_mkey == NULL);
- ent->total_mrs--;
+ ent->total_mkeys--;
xa_unlock_irq(&ent->mkeys);
mlx5_core_destroy_mkey(dev->mdev, (u32)xa_to_value(xa_mkey));
xa_lock_irq(&ent->mkeys);
@@ -802,7 +802,7 @@ static void clean_keys(struct mlx5_ib_dev *dev, struct mlx5_cache_ent *ent)
xa_unlock_irq(&ent->mkeys);
}
-static void mlx5_mr_cache_debugfs_cleanup(struct mlx5_ib_dev *dev)
+static void mlx5_mkey_cache_debugfs_cleanup(struct mlx5_ib_dev *dev)
{
if (!mlx5_debugfs_root || dev->is_rep)
return;
@@ -814,7 +814,7 @@ static void mlx5_mr_cache_debugfs_cleanup(struct mlx5_ib_dev *dev)
static void mlx5_cache_ent_debugfs_init(struct mlx5_ib_dev *dev,
struct mlx5_cache_ent *ent, int order)
{
- struct mlx5_mr_cache *cache = &dev->cache;
+ struct mlx5_mkey_cache *cache = &dev->cache;
struct dentry *dir;
if (!mlx5_debugfs_root || dev->is_rep)
@@ -876,11 +876,12 @@ static struct mlx5_cache_ent *mlx5_ib_create_cache_ent(struct mlx5_ib_dev *dev,
static void remove_ent_work_func(struct work_struct *work)
{
- struct mlx5_mr_cache *cache;
+ struct mlx5_mkey_cache *cache;
struct mlx5_cache_ent *ent;
struct rb_node *cur;
- cache = container_of(work, struct mlx5_mr_cache, remove_ent_dwork.work);
+ cache = container_of(work, struct mlx5_mkey_cache,
+ remove_ent_dwork.work);
mutex_lock(&cache->cache_lock);
cur = rb_last(&cache->cache_root);
while (cur) {
@@ -889,8 +890,8 @@ static void remove_ent_work_func(struct work_struct *work)
mutex_unlock(&cache->cache_lock);
xa_lock_irq(&ent->mkeys);
- if (!ent->is_tmp || ent->total_mrs != ent->stored) {
- if (ent->total_mrs != ent->stored)
+ if (!ent->is_tmp || ent->total_mkeys != ent->stored) {
+ if (ent->total_mkeys != ent->stored)
queue_delayed_work(cache->wq,
&cache->remove_ent_dwork,
msecs_to_jiffies(30 * 1000));
@@ -910,9 +911,9 @@ static void remove_ent_work_func(struct work_struct *work)
mutex_unlock(&cache->cache_lock);
}
-int mlx5_mr_cache_init(struct mlx5_ib_dev *dev)
+int mlx5_mkey_cache_init(struct mlx5_ib_dev *dev)
{
- struct mlx5_mr_cache *cache = &dev->cache;
+ struct mlx5_mkey_cache *cache = &dev->cache;
bool can_use_cache, need_cache;
struct mlx5_cache_ent *ent;
int order, err;
@@ -937,7 +938,7 @@ int mlx5_mr_cache_init(struct mlx5_ib_dev *dev)
mlx5_cmd_init_async_ctx(dev->mdev, &dev->async_ctx);
timer_setup(&dev->delay_timer, delay_time_func, 0);
- for (order = 2; order < MAX_MR_CACHE_ENTRIES + 2; order++) {
+ for (order = 2; order < MAX_MKEY_CACHE_ENTRIES + 2; order++) {
ent = mlx5_ib_create_cache_ent(dev, order);
if (IS_ERR(ent)) {
@@ -946,7 +947,7 @@ int mlx5_mr_cache_init(struct mlx5_ib_dev *dev)
}
if (can_use_cache && need_cache &&
- order <= mr_cache_max_order(dev)) {
+ order <= mkey_cache_max_order(dev)) {
ent->limit =
dev->mdev->profile.mr_cache[order - 2].limit;
xa_lock_irq(&ent->mkeys);
@@ -957,11 +958,11 @@ int mlx5_mr_cache_init(struct mlx5_ib_dev *dev)
return 0;
err:
- mlx5_mr_cache_cleanup(dev);
+ mlx5_mkey_cache_cleanup(dev);
return err;
}
-int mlx5_mr_cache_cleanup(struct mlx5_ib_dev *dev)
+int mlx5_mkey_cache_cleanup(struct mlx5_ib_dev *dev)
{
struct rb_root *root = &dev->cache.cache_root;
struct mlx5_cache_ent *ent;
@@ -981,7 +982,7 @@ int mlx5_mr_cache_cleanup(struct mlx5_ib_dev *dev)
cancel_delayed_work_sync(&ent->dwork);
}
- mlx5_mr_cache_debugfs_cleanup(dev);
+ mlx5_mkey_cache_debugfs_cleanup(dev);
mlx5_cmd_cleanup_async_ctx(&dev->async_ctx);
node = rb_first(root);
@@ -1059,10 +1060,10 @@ static int get_octo_len(u64 addr, u64 len, int page_shift)
return (npages + 1) / 2;
}
-static int mr_cache_max_order(struct mlx5_ib_dev *dev)
+static int mkey_cache_max_order(struct mlx5_ib_dev *dev)
{
if (MLX5_CAP_GEN(dev->mdev, umr_extended_translation_offset))
- return MAX_MR_CACHE_ENTRIES + 2;
+ return MAX_MKEY_CACHE_ENTRIES + 2;
return MLX5_MAX_UMR_SHIFT;
}
@@ -1184,8 +1185,8 @@ static struct mlx5_ib_mr *alloc_cacheable_mr(struct ib_pd *pd,
mlx5_acc_flags_to_ent_flags(dev, access_flags),
MLX5_MKC_ACCESS_MODE_MTT, PAGE_SHIFT);
- mr = mlx5_mr_cache_alloc(dev, in, inlen, ndescs,
- MLX5_MKC_ACCESS_MODE_MTT);
+ mr = mlx5_mkey_cache_alloc(dev, in, inlen, ndescs,
+ MLX5_MKC_ACCESS_MODE_MTT);
if (IS_ERR(mr)) {
kfree(in);
return mr;
@@ -2173,7 +2174,7 @@ static struct mlx5_cache_ent *mlx5_cache_create_tmp_ent(struct mlx5_ib_dev *dev,
static void mlx5_cache_tmp_push_mkey(struct mlx5_ib_dev *dev,
struct mlx5_ib_mr *mr)
{
- struct mlx5_mr_cache *cache = &dev->cache;
+ struct mlx5_mkey_cache *cache = &dev->cache;
struct ib_umem *umem = mr->umem;
struct mlx5_cache_ent *ent;
void *mkc;
@@ -2207,7 +2208,7 @@ static void mlx5_cache_tmp_push_mkey(struct mlx5_ib_dev *dev,
mutex_unlock(&cache->cache_lock);
return;
}
- ent->total_mrs++;
+ ent->total_mkeys++;
xa_unlock_irq(&ent->mkeys);
cancel_delayed_work(&cache->remove_ent_dwork);
queue_delayed_work(cache->wq, &cache->remove_ent_dwork,
@@ -2267,7 +2268,7 @@ int mlx5_ib_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata)
if (mr->mmkey.cache_ent) {
if (revoke_mr(mr) || push_reserve_mkey(mr->mmkey.cache_ent)) {
xa_lock_irq(&mr->mmkey.cache_ent->mkeys);
- mr->mmkey.cache_ent->total_mrs--;
+ mr->mmkey.cache_ent->total_mkeys--;
xa_unlock_irq(&mr->mmkey.cache_ent->mkeys);
mr->mmkey.cache_ent = NULL;
}
@@ -2290,7 +2291,7 @@ int mlx5_ib_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata)
}
if (mr->mmkey.cache_ent)
- mlx5_mr_cache_free(dev, mr);
+ mlx5_mkey_cache_free(dev, mr);
else
mlx5_free_priv_descs(mr);
diff --git a/drivers/infiniband/hw/mlx5/odp.c b/drivers/infiniband/hw/mlx5/odp.c
index 89aaf783fe25..ddb5f77905d5 100644
--- a/drivers/infiniband/hw/mlx5/odp.c
+++ b/drivers/infiniband/hw/mlx5/odp.c
@@ -434,8 +434,8 @@ static struct mlx5_ib_mr *implicit_get_child_mr(struct mlx5_ib_mr *imr,
mlx5_acc_flags_to_ent_flags(dev, imr->access_flags),
MLX5_MKC_ACCESS_MODE_MTT, PAGE_SHIFT);
- mr = mlx5_mr_cache_alloc(dev, in, inlen, MLX5_IMR_MTT_ENTRIES,
- MLX5_MKC_ACCESS_MODE_MTT);
+ mr = mlx5_mkey_cache_alloc(dev, in, inlen, MLX5_IMR_MTT_ENTRIES,
+ MLX5_MKC_ACCESS_MODE_MTT);
if (IS_ERR(mr)) {
ib_umem_odp_release(odp);
kfree(in);
@@ -528,8 +528,8 @@ struct mlx5_ib_mr *mlx5_ib_alloc_implicit_mr(struct mlx5_ib_pd *pd,
mlx5_acc_flags_to_ent_flags(dev, access_flags),
MLX5_MKC_ACCESS_MODE_KSM, PAGE_SHIFT);
- imr = mlx5_mr_cache_alloc(dev, in, inlen, mlx5_imr_ksm_entries,
- MLX5_MKC_ACCESS_MODE_KSM);
+ imr = mlx5_mkey_cache_alloc(dev, in, inlen, mlx5_imr_ksm_entries,
+ MLX5_MKC_ACCESS_MODE_KSM);
if (IS_ERR(imr)) {
ib_umem_odp_release(umem_odp);
kfree(in);
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index c33f71134136..51b30c11116e 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -699,7 +699,7 @@ enum {
};
enum {
- MAX_MR_CACHE_ENTRIES = 21,
+ MAX_MKEY_CACHE_ENTRIES = 21,
};
struct mlx5_profile {
@@ -708,7 +708,7 @@ struct mlx5_profile {
struct {
int size;
int limit;
- } mr_cache[MAX_MR_CACHE_ENTRIES];
+ } mr_cache[MAX_MKEY_CACHE_ENTRIES];
};
struct mlx5_hca_cap {
--
2.33.1
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