redonkable/remarkable-linux
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net/mlx4_core: ICM pages are allocated on device NUMA node

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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>
This commit is contained in:
Eugenia Emantayev 2013-11-07 12:19:53 +02:00 committed by David S. Miller
parent 41d942d56c
commit 6e7136ed77
3 changed files with 32 additions and 12 deletions
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42
drivers/net/ethernet/mellanox/mlx4/icm.c
View file

@ -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)

1
drivers/net/ethernet/mellanox/mlx4/main.c
View file

@ -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

1
include/linux/mlx4/device.h
View file

@ -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];