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Message-Id: <7b0077b34eebcffa477371bed10567ec34c97b6d.1638781506.git.leonro@nvidia.com>
Date: Mon, 6 Dec 2021 11:10:52 +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 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 | 26 ++++----
drivers/infiniband/hw/mlx5/mr.c | 88 ++++++++++++++--------------
drivers/infiniband/hw/mlx5/odp.c | 8 +--
include/linux/mlx5/driver.h | 4 +-
5 files changed, 66 insertions(+), 64 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 7dcc9e69a649..54a5c4bc2919 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -753,13 +753,13 @@ 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.
- * - pending is the number of MRs currently being created
+ * - pending is the number of mkeys currently being created
*/
- u32 total_mrs;
+ u32 total_mkeys;
u32 limit;
u32 pending;
@@ -781,7 +781,7 @@ 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;
@@ -1085,7 +1085,7 @@ 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;
@@ -1332,15 +1332,15 @@ 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, bool force);
+struct mlx5_ib_mr *mlx5_mkey_cache_alloc(struct mlx5_ib_dev *dev, int *in,
+ int inlen, unsigned int ndescs,
+ unsigned int access_mode, bool force);
int mlx5_ib_check_mr_status(struct ib_mr *ibmr, u32 check_mask,
struct ib_mr_status *mr_status);
@@ -1364,7 +1364,7 @@ int mlx5r_odp_create_eq(struct mlx5_ib_dev *dev, struct mlx5_ib_pf_eq *eq);
void mlx5_ib_odp_cleanup_one(struct mlx5_ib_dev *ibdev);
int __init mlx5_ib_odp_init(void);
void mlx5_ib_odp_cleanup(void);
-int mlx5_odp_init_mr_cache_entry(struct mlx5_ib_dev *dev);
+int mlx5_odp_init_mkey_cache_entry(struct mlx5_ib_dev *dev);
void mlx5_odp_populate_xlt(void *xlt, size_t idx, size_t nentries,
struct mlx5_ib_mr *mr, int flags);
@@ -1383,7 +1383,7 @@ static inline int mlx5r_odp_create_eq(struct mlx5_ib_dev *dev,
static inline void mlx5_ib_odp_cleanup_one(struct mlx5_ib_dev *ibdev) {}
static inline int mlx5_ib_odp_init(void) { return 0; }
static inline void mlx5_ib_odp_cleanup(void) {}
-static inline int mlx5_odp_init_mr_cache_entry(struct mlx5_ib_dev *dev)
+static inline int mlx5_odp_init_mkey_cache_entry(struct mlx5_ib_dev *dev)
{
return 0;
}
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index 29888a426b33..11e797e27873 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)
xa_mk_value(mkey_out->mkey), GFP_ATOMIC);
WARN_ON(xa_ent != NULL);
ent->pending--;
- 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);
@@ -279,15 +279,15 @@ static void remove_cache_mr_locked(struct mlx5_cache_ent *ent)
xa_ent = __xa_store(&ent->mkeys, --ent->stored, NULL, GFP_KERNEL);
WARN_ON(xa_ent == NULL || xa_is_err(xa_ent));
WARN_ON(__xa_erase(&ent->mkeys, --ent->reserved) != NULL);
- ent->total_mrs--;
+ ent->total_mkeys--;
xa_unlock_irq(&ent->mkeys);
mlx5_core_destroy_mkey(ent->dev->mdev, (u32)xa_to_value(xa_ent));
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;
@@ -327,22 +327,22 @@ 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);
@@ -361,7 +361,7 @@ 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;
@@ -392,7 +392,7 @@ 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;
@@ -421,7 +421,7 @@ 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;
@@ -477,7 +477,7 @@ 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);
@@ -553,7 +553,8 @@ static void cache_work_func(struct work_struct *work)
__cache_work_func(ent);
}
-static struct mlx5_cache_ent *ent_search(struct mlx5_mr_cache *cache, void *mkc)
+static struct mlx5_cache_ent *ent_search(struct mlx5_mkey_cache *cache,
+ void *mkc)
{
struct rb_node *node = cache->cache_root.rb_node;
int size = MLX5_ST_SZ_BYTES(mkc);
@@ -588,9 +589,9 @@ static int get_mkc_octo_size(unsigned int access_mode, unsigned int ndescs)
}
}
-struct mlx5_ib_mr *mlx5_mr_cache_alloc(struct mlx5_ib_dev *dev, int *in,
- int inlen, unsigned int ndescs,
- unsigned int access_mode, bool force)
+struct mlx5_ib_mr *mlx5_mkey_cache_alloc(struct mlx5_ib_dev *dev, int *in,
+ int inlen, unsigned int ndescs,
+ unsigned int access_mode, bool force)
{
struct mlx5_cache_ent *ent = NULL;
struct mlx5_ib_mr *mr;
@@ -645,7 +646,7 @@ struct mlx5_ib_mr *mlx5_mr_cache_alloc(struct mlx5_ib_dev *dev, int *in,
WRITE_ONCE(ent->dev->cache.last_add, jiffies);
xa_lock_irq(&ent->mkeys);
- ent->total_mrs++;
+ ent->total_mkeys++;
} else {
xa_ent = __xa_store(&ent->mkeys, --ent->stored,
NULL, GFP_KERNEL);
@@ -656,7 +657,7 @@ struct mlx5_ib_mr *mlx5_mr_cache_alloc(struct mlx5_ib_dev *dev, int *in,
mr->mmkey.key = (u32)xa_to_value(xa_ent);
}
if (ent->is_tmp) {
- ent->total_mrs--;
+ ent->total_mkeys--;
queue_delayed_work(dev->cache.wq,
&dev->cache.remove_ent_dwork,
msecs_to_jiffies(30 * 1000));
@@ -684,7 +685,7 @@ 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->cache_ent;
@@ -704,13 +705,13 @@ static void clean_keys(struct mlx5_ib_dev *dev, struct mlx5_cache_ent *ent)
xa_for_each(&ent->mkeys, index, entry) {
xa_lock_irq(&ent->mkeys);
__xa_erase(&ent->mkeys, index);
- ent->total_mrs--;
+ ent->total_mkeys--;
xa_unlock_irq(&ent->mkeys);
mlx5_core_destroy_mkey(dev->mdev, (u32)xa_to_value(entry));
}
}
-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;
@@ -722,7 +723,7 @@ 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)
@@ -743,7 +744,7 @@ static void delay_time_func(struct timer_list *t)
WRITE_ONCE(dev->fill_delay, 0);
}
-static int ent_insert(struct mlx5_mr_cache *cache, struct mlx5_cache_ent *ent)
+static int ent_insert(struct mlx5_mkey_cache *cache, struct mlx5_cache_ent *ent)
{
struct rb_node **new = &cache->cache_root.rb_node, *parent = NULL;
int size = MLX5_ST_SZ_BYTES(mkc);
@@ -812,11 +813,12 @@ 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) {
@@ -825,7 +827,7 @@ 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->is_tmp || ent->total_mkeys != ent->stored) {
xa_unlock_irq(&ent->mkeys);
mutex_lock(&cache->cache_lock);
continue;
@@ -842,9 +844,9 @@ 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;
struct mlx5_cache_ent *ent;
int order, err;
@@ -869,7 +871,7 @@ 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)) {
@@ -878,7 +880,7 @@ int mlx5_mr_cache_init(struct mlx5_ib_dev *dev)
}
if (cache->maintained_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);
@@ -889,11 +891,11 @@ 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;
@@ -913,7 +915,7 @@ 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);
@@ -991,10 +993,10 @@ 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;
}
@@ -1116,7 +1118,7 @@ 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(
+ mr = mlx5_mkey_cache_alloc(
dev, in, inlen, ndescs, MLX5_MKC_ACCESS_MODE_MTT,
!mlx5_ib_can_reconfig_with_umr(dev, access_flags, 0));
if (IS_ERR(mr)) {
@@ -2115,7 +2117,7 @@ create_tmp_cache_ent(struct mlx5_ib_dev *dev, void *mkc, unsigned int ndescs)
static void tmp_cache_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;
@@ -2150,7 +2152,7 @@ static void tmp_cache_mkey(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr)
mutex_unlock(&cache->cache_lock);
return;
}
- ent->total_mrs++;
+ ent->total_mkeys++;
xa_unlock_irq(&ent->mkeys);
queue_delayed_work(cache->wq, &cache->remove_ent_dwork,
msecs_to_jiffies(30 * 1000));
@@ -2209,7 +2211,7 @@ int mlx5_ib_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata)
if (mr->cache_ent) {
if (revoke_mr(mr) || push_reserve_mkey(mr->cache_ent)) {
xa_lock_irq(&mr->cache_ent->mkeys);
- mr->cache_ent->total_mrs--;
+ mr->cache_ent->total_mkeys--;
xa_unlock_irq(&mr->cache_ent->mkeys);
mr->cache_ent = NULL;
}
@@ -2232,7 +2234,7 @@ int mlx5_ib_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata)
}
if (mr->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 3d86a448ec97..25328abaedc9 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, true);
+ mr = mlx5_mkey_cache_alloc(dev, in, inlen, MLX5_IMR_MTT_ENTRIES,
+ MLX5_MKC_ACCESS_MODE_MTT, true);
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, true);
+ imr = mlx5_mkey_cache_alloc(dev, in, inlen, mlx5_imr_ksm_entries,
+ MLX5_MKC_ACCESS_MODE_KSM, true);
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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