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authorMaher Sanalla <msanalla@nvidia.com>2023-01-22 22:09:40 +0300
committerSaeed Mahameed <saeedm@nvidia.com>2023-02-08 06:01:05 +0300
commitc3bdbaea654d8df39112de33037106134a520dc7 (patch)
tree3967675e8c7d2a18afa82f30b9ce97f0c703c6ae /drivers/net
parent8aa5f171d51c1cb69e5e3106df4dd1a446102823 (diff)
downloadlinux-c3bdbaea654d8df39112de33037106134a520dc7.tar.xz
net/mlx5: Store page counters in a single array
Currently, an independent page counter is used for tracking memory usage for each function type such as VF, PF and host PF (DPU). For better code-readibilty, use a single array that stores the number of allocated memory pages for each function type. Signed-off-by: Maher Sanalla <msanalla@nvidia.com> Reviewed-by: Shay Drory <shayd@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/debugfs.c4
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/ecpf.c2
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c37
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/sriov.c2
4 files changed, 25 insertions, 20 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c b/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c
index 3e232a65a0c3..c3e7c24a0971 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c
@@ -245,8 +245,8 @@ void mlx5_pages_debugfs_init(struct mlx5_core_dev *dev)
pages = dev->priv.dbg.pages_debugfs;
debugfs_create_u32("fw_pages_total", 0400, pages, &dev->priv.fw_pages);
- debugfs_create_u32("fw_pages_vfs", 0400, pages, &dev->priv.vfs_pages);
- debugfs_create_u32("fw_pages_host_pf", 0400, pages, &dev->priv.host_pf_pages);
+ debugfs_create_u32("fw_pages_vfs", 0400, pages, &dev->priv.page_counters[MLX5_VF]);
+ debugfs_create_u32("fw_pages_host_pf", 0400, pages, &dev->priv.page_counters[MLX5_HOST_PF]);
debugfs_create_u32("fw_pages_alloc_failed", 0400, pages, &dev->priv.fw_pages_alloc_failed);
debugfs_create_u32("fw_pages_give_dropped", 0400, pages, &dev->priv.give_pages_dropped);
debugfs_create_u32("fw_pages_reclaim_discard", 0400, pages,
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/ecpf.c b/drivers/net/ethernet/mellanox/mlx5/core/ecpf.c
index 464eb3a18450..cdc87ecae5d3 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/ecpf.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/ecpf.c
@@ -87,7 +87,7 @@ void mlx5_ec_cleanup(struct mlx5_core_dev *dev)
mlx5_host_pf_cleanup(dev);
- err = mlx5_wait_for_pages(dev, &dev->priv.host_pf_pages);
+ err = mlx5_wait_for_pages(dev, &dev->priv.page_counters[MLX5_HOST_PF]);
if (err)
mlx5_core_warn(dev, "Timeout reclaiming external host PF pages err(%d)\n", err);
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
index 60596357bfc7..9f99292ab5ce 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
@@ -74,6 +74,14 @@ static u32 get_function(u16 func_id, bool ec_function)
return (u32)func_id | (ec_function << 16);
}
+static u16 func_id_to_type(struct mlx5_core_dev *dev, u16 func_id, bool ec_function)
+{
+ if (!func_id)
+ return mlx5_core_is_ecpf(dev) && !ec_function ? MLX5_HOST_PF : MLX5_PF;
+
+ return MLX5_VF;
+}
+
static struct rb_root *page_root_per_function(struct mlx5_core_dev *dev, u32 function)
{
struct rb_root *root;
@@ -332,6 +340,7 @@ static int give_pages(struct mlx5_core_dev *dev, u16 func_id, int npages,
u32 out[MLX5_ST_SZ_DW(manage_pages_out)] = {0};
int inlen = MLX5_ST_SZ_BYTES(manage_pages_in);
int notify_fail = event;
+ u16 func_type;
u64 addr;
int err;
u32 *in;
@@ -383,11 +392,9 @@ retry:
goto out_dropped;
}
+ func_type = func_id_to_type(dev, func_id, ec_function);
+ dev->priv.page_counters[func_type] += npages;
dev->priv.fw_pages += npages;
- if (func_id)
- dev->priv.vfs_pages += npages;
- else if (mlx5_core_is_ecpf(dev) && !ec_function)
- dev->priv.host_pf_pages += npages;
mlx5_core_dbg(dev, "npages %d, ec_function %d, func_id 0x%x, err %d\n",
npages, ec_function, func_id, err);
@@ -414,6 +421,7 @@ static void release_all_pages(struct mlx5_core_dev *dev, u16 func_id,
struct rb_root *root;
struct rb_node *p;
int npages = 0;
+ u16 func_type;
root = xa_load(&dev->priv.page_root_xa, function);
if (WARN_ON_ONCE(!root))
@@ -428,11 +436,9 @@ static void release_all_pages(struct mlx5_core_dev *dev, u16 func_id,
free_fwp(dev, fwp, fwp->free_count);
}
+ func_type = func_id_to_type(dev, func_id, ec_function);
+ dev->priv.page_counters[func_type] -= npages;
dev->priv.fw_pages -= npages;
- if (func_id)
- dev->priv.vfs_pages -= npages;
- else if (mlx5_core_is_ecpf(dev) && !ec_function)
- dev->priv.host_pf_pages -= npages;
mlx5_core_dbg(dev, "npages %d, ec_function %d, func_id 0x%x\n",
npages, ec_function, func_id);
@@ -498,6 +504,7 @@ static int reclaim_pages(struct mlx5_core_dev *dev, u16 func_id, int npages,
int outlen = MLX5_ST_SZ_BYTES(manage_pages_out);
u32 in[MLX5_ST_SZ_DW(manage_pages_in)] = {};
int num_claimed;
+ u16 func_type;
u32 *out;
int err;
int i;
@@ -549,11 +556,9 @@ static int reclaim_pages(struct mlx5_core_dev *dev, u16 func_id, int npages,
if (nclaimed)
*nclaimed = num_claimed;
+ func_type = func_id_to_type(dev, func_id, ec_function);
+ dev->priv.page_counters[func_type] -= num_claimed;
dev->priv.fw_pages -= num_claimed;
- if (func_id)
- dev->priv.vfs_pages -= num_claimed;
- else if (mlx5_core_is_ecpf(dev) && !ec_function)
- dev->priv.host_pf_pages -= num_claimed;
out_free:
kvfree(out);
@@ -706,12 +711,12 @@ int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev)
WARN(dev->priv.fw_pages,
"FW pages counter is %d after reclaiming all pages\n",
dev->priv.fw_pages);
- WARN(dev->priv.vfs_pages,
+ WARN(dev->priv.page_counters[MLX5_VF],
"VFs FW pages counter is %d after reclaiming all pages\n",
- dev->priv.vfs_pages);
- WARN(dev->priv.host_pf_pages,
+ dev->priv.page_counters[MLX5_VF]);
+ WARN(dev->priv.page_counters[MLX5_HOST_PF],
"External host PF FW pages counter is %d after reclaiming all pages\n",
- dev->priv.host_pf_pages);
+ dev->priv.page_counters[MLX5_HOST_PF]);
return 0;
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/sriov.c b/drivers/net/ethernet/mellanox/mlx5/core/sriov.c
index c0e6c487c63c..3008e9ce2bbf 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/sriov.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/sriov.c
@@ -147,7 +147,7 @@ mlx5_device_disable_sriov(struct mlx5_core_dev *dev, int num_vfs, bool clear_vf)
mlx5_eswitch_disable_sriov(dev->priv.eswitch, clear_vf);
- if (mlx5_wait_for_pages(dev, &dev->priv.vfs_pages))
+ if (mlx5_wait_for_pages(dev, &dev->priv.page_counters[MLX5_VF]))
mlx5_core_warn(dev, "timeout reclaiming VFs pages\n");
}