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vDPA/ifcvf: decouple config space ops from the adapter 

commit af8eb69a62 upstream.

This commit decopules the config space ops from the
adapter layer, so these functions can be invoked
once the device is probed.

Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Cc: stable@vger.kernel.org
Message-Id: <20221125145724.1129962-3-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Zhu Lingshan 2022-11-25 22:57:14 +08:00 committed by Greg Kroah-Hartman
parent 447d1c9abc
commit 50da55ec0f
1 changed files with 5 additions and 16 deletions
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21
drivers/vdpa/ifcvf/ifcvf_base.c
View File

@ -10,11 +10,6 @@
#include "ifcvf_base.h"
struct ifcvf_adapter *vf_to_adapter(struct ifcvf_hw *hw)
{
return container_of(hw, struct ifcvf_adapter, vf);
}
u16 ifcvf_set_vq_vector(struct ifcvf_hw *hw, u16 qid, int vector)
{
struct virtio_pci_common_cfg __iomem *cfg = hw->common_cfg;
@ -37,8 +32,6 @@ u16 ifcvf_set_config_vector(struct ifcvf_hw *hw, int vector)
static void __iomem *get_cap_addr(struct ifcvf_hw *hw,
struct virtio_pci_cap *cap)
{
struct ifcvf_adapter *ifcvf;
struct pci_dev *pdev;
u32 length, offset;
u8 bar;
@ -46,17 +39,14 @@ static void __iomem *get_cap_addr(struct ifcvf_hw *hw,
offset = le32_to_cpu(cap->offset);
bar = cap->bar;
ifcvf= vf_to_adapter(hw);
pdev = ifcvf->pdev;
if (bar >= IFCVF_PCI_MAX_RESOURCE) {
IFCVF_DBG(pdev,
IFCVF_DBG(hw->pdev,
"Invalid bar number %u to get capabilities\n", bar);
return NULL;
}
if (offset + length > pci_resource_len(pdev, bar)) {
IFCVF_DBG(pdev,
if (offset + length > pci_resource_len(hw->pdev, bar)) {
IFCVF_DBG(hw->pdev,
"offset(%u) + len(%u) overflows bar%u's capability\n",
offset, length, bar);
return NULL;
@ -92,6 +82,7 @@ int ifcvf_init_hw(struct ifcvf_hw *hw, struct pci_dev *pdev)
IFCVF_ERR(pdev, "Failed to read PCI capability list\n");
return -EIO;
}
hw->pdev = pdev;
while (pos) {
ret = ifcvf_read_config_range(pdev, (u32 *)&cap,
@ -230,13 +221,11 @@ int ifcvf_verify_min_features(struct ifcvf_hw *hw, u64 features)
u32 ifcvf_get_config_size(struct ifcvf_hw *hw)
{
struct ifcvf_adapter *adapter;
u32 net_config_size = sizeof(struct virtio_net_config);
u32 blk_config_size = sizeof(struct virtio_blk_config);
u32 cap_size = hw->cap_dev_config_size;
u32 config_size;
adapter = vf_to_adapter(hw);
/* If the onboard device config space size is greater than
* the size of struct virtio_net/blk_config, only the spec
* implementing contents size is returned, this is very
@ -251,7 +240,7 @@ u32 ifcvf_get_config_size(struct ifcvf_hw *hw)
break;
default:
config_size = 0;
IFCVF_ERR(adapter->pdev, "VIRTIO ID %u not supported\n", hw->dev_type);
IFCVF_ERR(hw->pdev, "VIRTIO ID %u not supported\n", hw->dev_type);
}
return config_size;