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path: root/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
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Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c')
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c58
1 files changed, 34 insertions, 24 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
index eb956ce904bc..c0656d4782e1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
@@ -58,7 +58,7 @@ struct fw_page {
struct rb_node rb_node;
u64 addr;
struct page *page;
- u16 func_id;
+ u32 function;
unsigned long bitmask;
struct list_head list;
unsigned free_count;
@@ -74,12 +74,17 @@ enum {
MLX5_NUM_4K_IN_PAGE = PAGE_SIZE / MLX5_ADAPTER_PAGE_SIZE,
};
-static struct rb_root *page_root_per_func_id(struct mlx5_core_dev *dev, u16 func_id)
+static u32 get_function(u16 func_id, bool ec_function)
+{
+ return (u32)func_id | (ec_function << 16);
+}
+
+static struct rb_root *page_root_per_function(struct mlx5_core_dev *dev, u32 function)
{
struct rb_root *root;
int err;
- root = xa_load(&dev->priv.page_root_xa, func_id);
+ root = xa_load(&dev->priv.page_root_xa, function);
if (root)
return root;
@@ -87,7 +92,7 @@ static struct rb_root *page_root_per_func_id(struct mlx5_core_dev *dev, u16 func
if (!root)
return ERR_PTR(-ENOMEM);
- err = xa_insert(&dev->priv.page_root_xa, func_id, root, GFP_KERNEL);
+ err = xa_insert(&dev->priv.page_root_xa, function, root, GFP_KERNEL);
if (err) {
kfree(root);
return ERR_PTR(err);
@@ -98,7 +103,7 @@ static struct rb_root *page_root_per_func_id(struct mlx5_core_dev *dev, u16 func
return root;
}
-static int insert_page(struct mlx5_core_dev *dev, u64 addr, struct page *page, u16 func_id)
+static int insert_page(struct mlx5_core_dev *dev, u64 addr, struct page *page, u32 function)
{
struct rb_node *parent = NULL;
struct rb_root *root;
@@ -107,7 +112,7 @@ static int insert_page(struct mlx5_core_dev *dev, u64 addr, struct page *page, u
struct fw_page *tfp;
int i;
- root = page_root_per_func_id(dev, func_id);
+ root = page_root_per_function(dev, function);
if (IS_ERR(root))
return PTR_ERR(root);
@@ -130,7 +135,7 @@ static int insert_page(struct mlx5_core_dev *dev, u64 addr, struct page *page, u
nfp->addr = addr;
nfp->page = page;
- nfp->func_id = func_id;
+ nfp->function = function;
nfp->free_count = MLX5_NUM_4K_IN_PAGE;
for (i = 0; i < MLX5_NUM_4K_IN_PAGE; i++)
set_bit(i, &nfp->bitmask);
@@ -143,14 +148,14 @@ static int insert_page(struct mlx5_core_dev *dev, u64 addr, struct page *page, u
}
static struct fw_page *find_fw_page(struct mlx5_core_dev *dev, u64 addr,
- u32 func_id)
+ u32 function)
{
struct fw_page *result = NULL;
struct rb_root *root;
struct rb_node *tmp;
struct fw_page *tfp;
- root = xa_load(&dev->priv.page_root_xa, func_id);
+ root = xa_load(&dev->priv.page_root_xa, function);
if (WARN_ON_ONCE(!root))
return NULL;
@@ -194,14 +199,14 @@ static int mlx5_cmd_query_pages(struct mlx5_core_dev *dev, u16 *func_id,
return err;
}
-static int alloc_4k(struct mlx5_core_dev *dev, u64 *addr, u16 func_id)
+static int alloc_4k(struct mlx5_core_dev *dev, u64 *addr, u32 function)
{
struct fw_page *fp = NULL;
struct fw_page *iter;
unsigned n;
list_for_each_entry(iter, &dev->priv.free_list, list) {
- if (iter->func_id != func_id)
+ if (iter->function != function)
continue;
fp = iter;
}
@@ -231,7 +236,7 @@ static void free_fwp(struct mlx5_core_dev *dev, struct fw_page *fwp,
{
struct rb_root *root;
- root = xa_load(&dev->priv.page_root_xa, fwp->func_id);
+ root = xa_load(&dev->priv.page_root_xa, fwp->function);
if (WARN_ON_ONCE(!root))
return;
@@ -244,12 +249,12 @@ static void free_fwp(struct mlx5_core_dev *dev, struct fw_page *fwp,
kfree(fwp);
}
-static void free_4k(struct mlx5_core_dev *dev, u64 addr, u32 func_id)
+static void free_4k(struct mlx5_core_dev *dev, u64 addr, u32 function)
{
struct fw_page *fwp;
int n;
- fwp = find_fw_page(dev, addr & MLX5_U64_4K_PAGE_MASK, func_id);
+ fwp = find_fw_page(dev, addr & MLX5_U64_4K_PAGE_MASK, function);
if (!fwp) {
mlx5_core_warn_rl(dev, "page not found\n");
return;
@@ -263,7 +268,7 @@ static void free_4k(struct mlx5_core_dev *dev, u64 addr, u32 func_id)
list_add(&fwp->list, &dev->priv.free_list);
}
-static int alloc_system_page(struct mlx5_core_dev *dev, u16 func_id)
+static int alloc_system_page(struct mlx5_core_dev *dev, u32 function)
{
struct device *device = mlx5_core_dma_dev(dev);
int nid = dev_to_node(device);
@@ -291,7 +296,7 @@ map:
goto map;
}
- err = insert_page(dev, addr, page, func_id);
+ err = insert_page(dev, addr, page, function);
if (err) {
mlx5_core_err(dev, "failed to track allocated page\n");
dma_unmap_page(device, addr, PAGE_SIZE, DMA_BIDIRECTIONAL);
@@ -328,6 +333,7 @@ static void page_notify_fail(struct mlx5_core_dev *dev, u16 func_id,
static int give_pages(struct mlx5_core_dev *dev, u16 func_id, int npages,
int notify_fail, bool ec_function)
{
+ u32 function = get_function(func_id, ec_function);
u32 out[MLX5_ST_SZ_DW(manage_pages_out)] = {0};
int inlen = MLX5_ST_SZ_BYTES(manage_pages_in);
u64 addr;
@@ -345,10 +351,10 @@ static int give_pages(struct mlx5_core_dev *dev, u16 func_id, int npages,
for (i = 0; i < npages; i++) {
retry:
- err = alloc_4k(dev, &addr, func_id);
+ err = alloc_4k(dev, &addr, function);
if (err) {
if (err == -ENOMEM)
- err = alloc_system_page(dev, func_id);
+ err = alloc_system_page(dev, function);
if (err)
goto out_4k;
@@ -384,7 +390,7 @@ retry:
out_4k:
for (i--; i >= 0; i--)
- free_4k(dev, MLX5_GET64(manage_pages_in, in, pas[i]), func_id);
+ free_4k(dev, MLX5_GET64(manage_pages_in, in, pas[i]), function);
out_free:
kvfree(in);
if (notify_fail)
@@ -392,14 +398,15 @@ out_free:
return err;
}
-static void release_all_pages(struct mlx5_core_dev *dev, u32 func_id,
+static void release_all_pages(struct mlx5_core_dev *dev, u16 func_id,
bool ec_function)
{
+ u32 function = get_function(func_id, ec_function);
struct rb_root *root;
struct rb_node *p;
int npages = 0;
- root = xa_load(&dev->priv.page_root_xa, func_id);
+ root = xa_load(&dev->priv.page_root_xa, function);
if (WARN_ON_ONCE(!root))
return;
@@ -446,6 +453,7 @@ static int reclaim_pages_cmd(struct mlx5_core_dev *dev,
struct rb_root *root;
struct fw_page *fwp;
struct rb_node *p;
+ bool ec_function;
u32 func_id;
u32 npages;
u32 i = 0;
@@ -456,8 +464,9 @@ static int reclaim_pages_cmd(struct mlx5_core_dev *dev,
/* No hard feelings, we want our pages back! */
npages = MLX5_GET(manage_pages_in, in, input_num_entries);
func_id = MLX5_GET(manage_pages_in, in, function_id);
+ ec_function = MLX5_GET(manage_pages_in, in, embedded_cpu_function);
- root = xa_load(&dev->priv.page_root_xa, func_id);
+ root = xa_load(&dev->priv.page_root_xa, get_function(func_id, ec_function));
if (WARN_ON_ONCE(!root))
return -EEXIST;
@@ -473,9 +482,10 @@ static int reclaim_pages_cmd(struct mlx5_core_dev *dev,
return 0;
}
-static int reclaim_pages(struct mlx5_core_dev *dev, u32 func_id, int npages,
+static int reclaim_pages(struct mlx5_core_dev *dev, u16 func_id, int npages,
int *nclaimed, bool ec_function)
{
+ u32 function = get_function(func_id, ec_function);
int outlen = MLX5_ST_SZ_BYTES(manage_pages_out);
u32 in[MLX5_ST_SZ_DW(manage_pages_in)] = {};
int num_claimed;
@@ -514,7 +524,7 @@ static int reclaim_pages(struct mlx5_core_dev *dev, u32 func_id, int npages,
}
for (i = 0; i < num_claimed; i++)
- free_4k(dev, MLX5_GET64(manage_pages_out, out, pas[i]), func_id);
+ free_4k(dev, MLX5_GET64(manage_pages_out, out, pas[i]), function);
if (nclaimed)
*nclaimed = num_claimed;
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