From: Parav Pandit parav@nvidia.com
[ Upstream commit ba5d8f72b82cc197355c9340ef89dab813815865 ]
When ECPF is a page supplier, reclaim pages missed to honor the ec_function bit provided by the firmware. It always used the ec_function to true during driver unload flow for ECPF. This is incorrect.
Honor the ec_function bit provided by device during page allocation request event.
Fixes: d6945242f45d ("net/mlx5: Hold pages RB tree per VF") Signed-off-by: Parav Pandit parav@nvidia.com Signed-off-by: Daniel Jurgens danielj@nvidia.com Signed-off-by: Saeed Mahameed saeedm@nvidia.com Signed-off-by: Sasha Levin sashal@kernel.org --- .../ethernet/mellanox/mlx5/core/pagealloc.c | 22 ++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c index 64d4e7125e9bb..95dc67fb30015 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c @@ -82,6 +82,16 @@ static u16 func_id_to_type(struct mlx5_core_dev *dev, u16 func_id, bool ec_funct return func_id <= mlx5_core_max_vfs(dev) ? MLX5_VF : MLX5_SF; }
+static u32 mlx5_get_ec_function(u32 function) +{ + return function >> 16; +} + +static u32 mlx5_get_func_id(u32 function) +{ + return function & 0xffff; +} + static struct rb_root *page_root_per_function(struct mlx5_core_dev *dev, u32 function) { struct rb_root *root; @@ -665,20 +675,22 @@ static int optimal_reclaimed_pages(void) }
static int mlx5_reclaim_root_pages(struct mlx5_core_dev *dev, - struct rb_root *root, u16 func_id) + struct rb_root *root, u32 function) { u64 recl_pages_to_jiffies = msecs_to_jiffies(mlx5_tout_ms(dev, RECLAIM_PAGES)); unsigned long end = jiffies + recl_pages_to_jiffies;
while (!RB_EMPTY_ROOT(root)) { + u32 ec_function = mlx5_get_ec_function(function); + u32 function_id = mlx5_get_func_id(function); int nclaimed; int err;
- err = reclaim_pages(dev, func_id, optimal_reclaimed_pages(), - &nclaimed, false, mlx5_core_is_ecpf(dev)); + err = reclaim_pages(dev, function_id, optimal_reclaimed_pages(), + &nclaimed, false, ec_function); if (err) { - mlx5_core_warn(dev, "failed reclaiming pages (%d) for func id 0x%x\n", - err, func_id); + mlx5_core_warn(dev, "reclaim_pages err (%d) func_id=0x%x ec_func=0x%x\n", + err, function_id, ec_function); return err; }