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net/mlx5: Add explicit bar address field

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Add bar_addr field to store bar-0 address to avoid calling
pci_resource_start with hard-coded bar-0 as parameter.
Also note that different mlx5 device types will have bar_addr
on different bars.

This patch does not change any functionality.

Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Vu Pham <vuhuong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Huy Nguyen 2019-03-29 15:38:01 -07:00 committed by Saeed Mahameed
parent 98a8e6fc48
commit aa8106f137
6 changed files with 11 additions and 10 deletions
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4
drivers/infiniband/hw/mlx5/cmd.c
View File

@ -148,7 +148,7 @@ int mlx5_cmd_alloc_memic(struct mlx5_memic *memic, phys_addr_t *addr,
return ret;
}
*addr = pci_resource_start(dev->pdev, 0) +
*addr = dev->bar_addr +
MLX5_GET64(alloc_memic_out, out, memic_start_addr);
return 0;
@ -167,7 +167,7 @@ int mlx5_cmd_dealloc_memic(struct mlx5_memic *memic, u64 addr, u64 length)
u64 start_page_idx;
int err;
addr -= pci_resource_start(dev->pdev, 0);
addr -= dev->bar_addr;
start_page_idx = (addr - hw_start_addr) >> PAGE_SHIFT;
MLX5_SET(dealloc_memic_in, in, opcode, MLX5_CMD_OP_DEALLOC_MEMIC);

8
drivers/infiniband/hw/mlx5/main.c
View File

@ -1984,7 +1984,7 @@ static phys_addr_t uar_index2pfn(struct mlx5_ib_dev *dev,
fw_uars_per_page = MLX5_CAP_GEN(dev->mdev, uar_4k) ? MLX5_UARS_IN_PAGE : 1;
return (pci_resource_start(dev->mdev->pdev, 0) >> PAGE_SHIFT) + uar_idx / fw_uars_per_page;
return (dev->mdev->bar_addr >> PAGE_SHIFT) + uar_idx / fw_uars_per_page;
}
static int get_command(unsigned long offset)
@ -2174,7 +2174,7 @@ static int dm_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
page_idx + npages)
return -EINVAL;
pfn = ((pci_resource_start(dev->mdev->pdev, 0) +
pfn = ((dev->mdev->bar_addr +
MLX5_CAP64_DEV_MEM(dev->mdev, memic_bar_start_addr)) >>
PAGE_SHIFT) +
page_idx;
@ -2258,7 +2258,7 @@ struct ib_dm *mlx5_ib_alloc_dm(struct ib_device *ibdev,
goto err_free;
start_offset = memic_addr & ~PAGE_MASK;
page_idx = (memic_addr - pci_resource_start(memic->dev->pdev, 0) -
page_idx = (memic_addr - memic->dev->bar_addr -
MLX5_CAP64_DEV_MEM(memic->dev, memic_bar_start_addr)) >>
PAGE_SHIFT;
@ -2301,7 +2301,7 @@ int mlx5_ib_dealloc_dm(struct ib_dm *ibdm)
if (ret)
return ret;
page_idx = (dm->dev_addr - pci_resource_start(memic->dev->pdev, 0) -
page_idx = (dm->dev_addr - memic->dev->bar_addr -
MLX5_CAP64_DEV_MEM(memic->dev, memic_bar_start_addr)) >>
PAGE_SHIFT;
bitmap_clear(to_mucontext(ibdm->uobject->context)->dm_pages,

3
drivers/infiniband/hw/mlx5/mr.c
View File

@ -1232,8 +1232,7 @@ static struct ib_mr *mlx5_ib_get_memic_mr(struct ib_pd *pd, u64 memic_addr,
MLX5_SET64(mkc, mkc, len, length);
MLX5_SET(mkc, mkc, pd, to_mpd(pd)->pdn);
MLX5_SET(mkc, mkc, qpn, 0xffffff);
MLX5_SET64(mkc, mkc, start_addr,
memic_addr - pci_resource_start(dev->mdev->pdev, 0));
MLX5_SET64(mkc, mkc, start_addr, memic_addr - dev->mdev->bar_addr);
err = mlx5_core_create_mkey(mdev, &mr->mmkey, in, inlen);
if (err)

3
drivers/net/ethernet/mellanox/mlx5/core/main.c
View File

@ -739,6 +739,7 @@ static int mlx5_pci_init(struct mlx5_core_dev *dev, struct pci_dev *pdev,
pci_set_drvdata(dev->pdev, dev);
dev->bar_addr = pci_resource_start(pdev, 0);
priv->numa_node = dev_to_node(&dev->pdev->dev);
err = mlx5_pci_enable_device(dev);
@ -766,7 +767,7 @@ static int mlx5_pci_init(struct mlx5_core_dev *dev, struct pci_dev *pdev,
pci_enable_atomic_ops_to_root(pdev, PCI_EXP_DEVCAP2_ATOMIC_COMP128))
mlx5_core_dbg(dev, "Enabling pci atomics failed\n");
dev->iseg_base = pci_resource_start(dev->pdev, 0);
dev->iseg_base = dev->bar_addr;
dev->iseg = ioremap(dev->iseg_base, sizeof(*dev->iseg));
if (!dev->iseg) {
err = -ENOMEM;

2
drivers/net/ethernet/mellanox/mlx5/core/uar.c
View File

@ -79,7 +79,7 @@ static u64 uar2pfn(struct mlx5_core_dev *mdev, u32 index)
else
system_page_index = index;
return (pci_resource_start(mdev->pdev, 0) >> PAGE_SHIFT) + system_page_index;
return (mdev->bar_addr >> PAGE_SHIFT) + system_page_index;
}
static void up_rel_func(struct kref *kref)

1
include/linux/mlx5/driver.h
View File

@ -658,6 +658,7 @@ struct mlx5_core_dev {
u64 sys_image_guid;
phys_addr_t iseg_base;
struct mlx5_init_seg __iomem *iseg;
phys_addr_t bar_addr;
enum mlx5_device_state state;
/* sync interface state */
struct mutex intf_state_mutex;