d/numam-dpdk
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

net/virtio: add PCI operation for queue/irq binding

Browse Source 
Add handler in virtio_pci_ops to set queue/irq bind.

Signed-off-by: Jianfeng Tan <jianfeng.tan@intel.com>
Tested-by: Lei Yao <lei.a.yao@intel.com>
Acked-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
This commit is contained in:
Jianfeng Tan 2017-01-17 07:10:24 +00:00 committed by Yuanhan Liu
parent b0caba1a13
commit c49526acec
2 changed files with 26 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
drivers/net/virtio/virtio_pci.c
View File

@ -219,6 +219,19 @@ legacy_set_config_irq(struct virtio_hw *hw, uint16_t vec)
return dst;
}
static uint16_t
legacy_set_queue_irq(struct virtio_hw *hw, struct virtqueue *vq, uint16_t vec)
{
uint16_t dst;
rte_eal_pci_ioport_write(VTPCI_IO(hw), &vq->vq_queue_index, 2,
VIRTIO_PCI_QUEUE_SEL);
rte_eal_pci_ioport_write(VTPCI_IO(hw), &vec, 2,
VIRTIO_MSI_QUEUE_VECTOR);
rte_eal_pci_ioport_read(VTPCI_IO(hw), &dst, 2, VIRTIO_MSI_QUEUE_VECTOR);
return dst;
}
static uint16_t
legacy_get_queue_num(struct virtio_hw *hw, uint16_t queue_id)
{
@ -314,6 +327,7 @@ const struct virtio_pci_ops legacy_ops = {
.set_features = legacy_set_features,
.get_isr = legacy_get_isr,
.set_config_irq = legacy_set_config_irq,
.set_queue_irq = legacy_set_queue_irq,
.get_queue_num = legacy_get_queue_num,
.setup_queue = legacy_setup_queue,
.del_queue = legacy_del_queue,
@ -452,6 +466,14 @@ modern_set_config_irq(struct virtio_hw *hw, uint16_t vec)
return io_read16(&hw->common_cfg->msix_config);
}
static uint16_t
modern_set_queue_irq(struct virtio_hw *hw, struct virtqueue *vq, uint16_t vec)
{
io_write16(vq->vq_queue_index, &hw->common_cfg->queue_select);
io_write16(vec, &hw->common_cfg->queue_msix_vector);
return io_read16(&hw->common_cfg->queue_msix_vector);
}
static uint16_t
modern_get_queue_num(struct virtio_hw *hw, uint16_t queue_id)
{
@ -530,6 +552,7 @@ const struct virtio_pci_ops modern_ops = {
.set_features = modern_set_features,
.get_isr = modern_get_isr,
.set_config_irq = modern_set_config_irq,
.set_queue_irq = modern_set_queue_irq,
.get_queue_num = modern_get_queue_num,
.setup_queue = modern_setup_queue,
.del_queue = modern_del_queue,

3
drivers/net/virtio/virtio_pci.h
View File

@ -235,6 +235,9 @@ struct virtio_pci_ops {
uint16_t (*set_config_irq)(struct virtio_hw *hw, uint16_t vec);
uint16_t (*set_queue_irq)(struct virtio_hw *hw, struct virtqueue *vq,
uint16_t vec);
uint16_t (*get_queue_num)(struct virtio_hw *hw, uint16_t queue_id);
int (*setup_queue)(struct virtio_hw *hw, struct virtqueue *vq);
void (*del_queue)(struct virtio_hw *hw, struct virtqueue *vq);