net/mlx4_core: ICM pages are allocated on device NUMA node

This is done to optimize FW/HW access to host memory.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.com>
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Reviewed-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 32 insertions, 12 deletions

diff --git a/drivers/net/ethernet/mellanox/mlx4/icm.c b/drivers/net/ethernet/mellanox/mlx4/icm.c
index 31d02649be41..5fbf4924c272 100644
--- a/drivers/net/ethernet/mellanox/mlx4/icm.c
+++ b/drivers/net/ethernet/mellanox/mlx4/icm.c
@@ -93,13 +93,17 @@ void mlx4_free_icm(struct mlx4_dev *dev, struct mlx4_icm *icm, int coherent)
         kfree(icm);
 }
 
-static int mlx4_alloc_icm_pages(struct scatterlist *mem, int order, gfp_t gfp_mask)
+static int mlx4_alloc_icm_pages(struct scatterlist *mem, int order,
+                                gfp_t gfp_mask, int node)
 {
         struct page *page;
 
-        page = alloc_pages(gfp_mask, order);
-        if (!page)
-                return -ENOMEM;
+        page = alloc_pages_node(node, gfp_mask, order);
+        if (!page) {
+                page = alloc_pages(gfp_mask, order);
+                if (!page)
+                        return -ENOMEM;
+        }
 
         sg_set_page(mem, page, PAGE_SIZE << order, 0);
         return 0;
@@ -130,9 +134,15 @@ struct mlx4_icm *mlx4_alloc_icm(struct mlx4_dev *dev, int npages,
         /* We use sg_set_buf for coherent allocs, which assumes low memory */
         BUG_ON(coherent && (gfp_mask & __GFP_HIGHMEM));
 
-        icm = kmalloc(sizeof *icm, gfp_mask & ~(__GFP_HIGHMEM | __GFP_NOWARN));
-        if (!icm)
-                return NULL;
+        icm = kmalloc_node(sizeof(*icm),
+                           gfp_mask & ~(__GFP_HIGHMEM | __GFP_NOWARN),
+                           dev->numa_node);
+        if (!icm) {
+                icm = kmalloc(sizeof(*icm),
+                              gfp_mask & ~(__GFP_HIGHMEM | __GFP_NOWARN));
+                if (!icm)
+                        return NULL;
+        }
 
         icm->refcount = 0;
         INIT_LIST_HEAD(&icm->chunk_list);
@@ -141,10 +151,17 @@ struct mlx4_icm *mlx4_alloc_icm(struct mlx4_dev *dev, int npages,
 
         while (npages > 0) {
                 if (!chunk) {
-                        chunk = kmalloc(sizeof *chunk,
-                                        gfp_mask & ~(__GFP_HIGHMEM | __GFP_NOWARN));
-                        if (!chunk)
-                                goto fail;
+                        chunk = kmalloc_node(sizeof(*chunk),
+                                             gfp_mask & ~(__GFP_HIGHMEM |
+                                                          __GFP_NOWARN),
+                                             dev->numa_node);
+                        if (!chunk) {
+                                chunk = kmalloc(sizeof(*chunk),
+                                                gfp_mask & ~(__GFP_HIGHMEM |
+                                                             __GFP_NOWARN));
+                                if (!chunk)
+                                        goto fail;
+                        }
 
                         sg_init_table(chunk->mem, MLX4_ICM_CHUNK_LEN);
                         chunk->npages = 0;
@@ -161,7 +178,8 @@ struct mlx4_icm *mlx4_alloc_icm(struct mlx4_dev *dev, int npages,
                                                       cur_order, gfp_mask);
                 else
                         ret = mlx4_alloc_icm_pages(&chunk->mem[chunk->npages],
-                                                   cur_order, gfp_mask);
+                                                   cur_order, gfp_mask,
+                                                   dev->numa_node);
 
                 if (ret) {
                         if (--cur_order < 0)
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index 7d2628dfdc29..5789ea2c934d 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -2191,6 +2191,7 @@ static int __mlx4_init_one(struct pci_dev *pdev, int pci_dev_data)
         mutex_init(&priv->bf_mutex);
 
         dev->rev_id = pdev->revision;
+        dev->numa_node = dev_to_node(&pdev->dev);
         /* Detect if this device is a virtual function */
         if (pci_dev_data & MLX4_PCI_DEV_IS_VF) {
                 /* When acting as pf, we normally skip vfs unless explicitly
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index f6f59271f857..4cf0b0153639 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -662,6 +662,7 @@ struct mlx4_dev {
         u8                      rev_id;
         char                    board_id[MLX4_BOARD_ID_LEN];
         int                     num_vfs;
+        int                     numa_node;
         int                     oper_log_mgm_entry_size;
         u64                     regid_promisc_array[MLX4_MAX_PORTS + 1];
         u64                     regid_allmulti_array[MLX4_MAX_PORTS + 1];