IB_ACCESS_REMOTE_READ |\
IB_ZERO_BASED)
+#define mlx5_update_odp_stats(mr, counter_name, value) \
+ atomic64_add(value, &((mr)->odp_stats.counter_name))
+
struct mlx5_ib_mr {
struct ib_mr ibmr;
void *descs;
wait_queue_head_t q_leaf_free;
struct mlx5_async_work cb_work;
atomic_t num_pending_prefetch;
+ struct ib_odp_counters odp_stats;
};
static inline bool is_odp_mr(struct mlx5_ib_mr *mr)
const u64 umr_block_mask = (MLX5_UMR_MTT_ALIGNMENT /
sizeof(struct mlx5_mtt)) - 1;
u64 idx = 0, blk_start_idx = 0;
+ u64 invalidations = 0;
int in_block = 0;
u64 addr;
blk_start_idx = idx;
in_block = 1;
}
+
+ /* Count page invalidations */
+ invalidations += idx - blk_start_idx + 1;
} else {
u64 umr_offset = idx & umr_block_mask;
MLX5_IB_UPD_XLT_ZAP |
MLX5_IB_UPD_XLT_ATOMIC);
mutex_unlock(&umem_odp->umem_mutex);
+
+ mlx5_update_odp_stats(mr, invalidations, invalidations);
+
/*
* We are now sure that the device will not access the
* memory. We can safely unmap it, and mark it as dirty if
ib_umem_odp_unmap_dma_pages(umem_odp, start, end);
+
if (unlikely(!umem_odp->npages && mr->parent &&
!umem_odp->dying)) {
WRITE_ONCE(umem_odp->dying, 1);
if (ret < 0)
goto srcu_unlock;
+ /*
+ * When prefetching a page, page fault is generated
+ * in order to bring the page to the main memory.
+ * In the current flow, page faults are being counted.
+ */
+ mlx5_update_odp_stats(mr, faults, ret);
+
npages += ret;
ret = 0;
break;
struct net_device *netdev, void *param);
};
+struct ib_odp_counters {
+ atomic64_t faults;
+ atomic64_t invalidations;
+};
+
struct ib_counters {
struct ib_device *device;
struct ib_uobject *uobject;