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authorZhu Lingshan <lingshan.zhu@intel.com>2022-02-22 12:54:28 +0100
committerMichael S. Tsirkin <mst@redhat.com>2022-03-28 22:52:57 +0200
commit6f84622db395456f071910a1851fda66325855bd (patch)
tree2f18dc38986cff0c30f6e825b9a18b16ff94c60a /drivers/vdpa/ifcvf
parentvDPA/ifcvf: implement shared IRQ feature (diff)
downloadlinux-6f84622db395456f071910a1851fda66325855bd.tar.xz
linux-6f84622db395456f071910a1851fda66325855bd.zip
vDPA/ifcvf: cacheline alignment for ifcvf_hw
This commit introduces a new cacheline aligned layout for ifcvf_hw. Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com> Link: https://lore.kernel.org/r/20220222115428.998334-6-lingshan.zhu@intel.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/vdpa/ifcvf')
-rw-r--r--drivers/vdpa/ifcvf/ifcvf_base.c4
-rw-r--r--drivers/vdpa/ifcvf/ifcvf_base.h10
2 files changed, 5 insertions, 9 deletions
diff --git a/drivers/vdpa/ifcvf/ifcvf_base.c b/drivers/vdpa/ifcvf/ifcvf_base.c
index 8aba3ab4a2f3..48c4dadb0c7c 100644
--- a/drivers/vdpa/ifcvf/ifcvf_base.c
+++ b/drivers/vdpa/ifcvf/ifcvf_base.c
@@ -340,10 +340,8 @@ int ifcvf_set_vq_state(struct ifcvf_hw *hw, u16 qid, u16 num)
static int ifcvf_hw_enable(struct ifcvf_hw *hw)
{
struct virtio_pci_common_cfg __iomem *cfg;
- struct ifcvf_adapter *ifcvf;
u32 i;
- ifcvf = vf_to_adapter(hw);
cfg = hw->common_cfg;
for (i = 0; i < hw->nr_vring; i++) {
if (!hw->vring[i].ready)
@@ -366,10 +364,8 @@ static int ifcvf_hw_enable(struct ifcvf_hw *hw)
static void ifcvf_hw_disable(struct ifcvf_hw *hw)
{
- struct virtio_pci_common_cfg __iomem *cfg;
u32 i;
- cfg = hw->common_cfg;
ifcvf_set_config_vector(hw, VIRTIO_MSI_NO_VECTOR);
for (i = 0; i < hw->nr_vring; i++) {
ifcvf_set_vq_vector(hw, i, VIRTIO_MSI_NO_VECTOR);
diff --git a/drivers/vdpa/ifcvf/ifcvf_base.h b/drivers/vdpa/ifcvf/ifcvf_base.h
index dcd31accfce5..115b61f4924b 100644
--- a/drivers/vdpa/ifcvf/ifcvf_base.h
+++ b/drivers/vdpa/ifcvf/ifcvf_base.h
@@ -66,16 +66,18 @@ struct ifcvf_hw {
u8 __iomem *isr;
/* Live migration */
u8 __iomem *lm_cfg;
- u16 nr_vring;
/* Notification bar number */
u8 notify_bar;
+ u8 msix_vector_status;
+ /* virtio-net or virtio-blk device config size */
+ u32 config_size;
/* Notificaiton bar address */
void __iomem *notify_base;
phys_addr_t notify_base_pa;
u32 notify_off_multiplier;
+ u32 dev_type;
u64 req_features;
u64 hw_features;
- u32 dev_type;
struct virtio_pci_common_cfg __iomem *common_cfg;
void __iomem *dev_cfg;
struct vring_info vring[IFCVF_MAX_QUEUES];
@@ -84,9 +86,7 @@ struct ifcvf_hw {
struct vdpa_callback config_cb;
int config_irq;
int vqs_reused_irq;
- /* virtio-net or virtio-blk device config size */
- u32 config_size;
- u8 msix_vector_status;
+ u16 nr_vring;
};
struct ifcvf_adapter {