ifcvf: implement config interrupt in IFCVF (e7991f37) · Commits · 戴 / test

drivers/vdpa/ifcvf/ifcvf_base.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -185,6 +185,9 @@ void ifcvf_set_status(struct ifcvf_hw *hw, u8 status)

		void ifcvf_reset(struct ifcvf_hw *hw)
		{
		hw->config_cb.callback = NULL;
		hw->config_cb.private = NULL;

		ifcvf_set_status(hw, 0);
		/* flush set_status, make sure VF is stopped, reset */
		ifcvf_get_status(hw);

+4 −0

Original line number	Diff line number	Diff line
		@@ -27,6 +27,7 @@
		((1ULL << VIRTIO_NET_F_MAC) \| \
		(1ULL << VIRTIO_F_ANY_LAYOUT) \| \
		(1ULL << VIRTIO_F_VERSION_1) \| \
		(1ULL << VIRTIO_NET_F_STATUS) \| \
		(1ULL << VIRTIO_F_ORDER_PLATFORM) \| \
		(1ULL << VIRTIO_F_IOMMU_PLATFORM) \| \
		(1ULL << VIRTIO_NET_F_MRG_RXBUF))
		@@ -81,6 +82,9 @@ struct ifcvf_hw {
		void __iomem *net_cfg;
		struct vring_info vring[IFCVF_MAX_QUEUE_PAIRS * 2];
		void __iomem * const *base;
		char config_msix_name[256];
		struct vdpa_callback config_cb;

		};

		struct ifcvf_adapter {

+22 −1

Original line number	Diff line number	Diff line
		@@ -18,6 +18,16 @@
		#define DRIVER_AUTHOR "Intel Corporation"
		#define IFCVF_DRIVER_NAME "ifcvf"

		static irqreturn_t ifcvf_config_changed(int irq, void *arg)
		{
		struct ifcvf_hw *vf = arg;

		if (vf->config_cb.callback)
		return vf->config_cb.callback(vf->config_cb.private);

		return IRQ_HANDLED;
		}

		static irqreturn_t ifcvf_intr_handler(int irq, void *arg)
		{
		struct vring_info *vring = arg;
		@@ -59,6 +69,14 @@ static int ifcvf_request_irq(struct ifcvf_adapter *adapter)
		return ret;
		}

		snprintf(vf->config_msix_name, 256, "ifcvf[%s]-config\n",
		pci_name(pdev));
		vector = 0;
		irq = pci_irq_vector(pdev, vector);
		ret = devm_request_irq(&pdev->dev, irq,
		ifcvf_config_changed, 0,
		vf->config_msix_name, vf);

		for (i = 0; i < IFCVF_MAX_QUEUE_PAIRS * 2; i++) {
		snprintf(vf->vring[i].msix_name, 256, "ifcvf[%s]-%d\n",
		pci_name(pdev), i);
		@@ -328,7 +346,10 @@ static void ifcvf_vdpa_set_config(struct vdpa_device *vdpa_dev,
		static void ifcvf_vdpa_set_config_cb(struct vdpa_device *vdpa_dev,
		struct vdpa_callback *cb)
		{
		/* We don't support config interrupt */
		struct ifcvf_hw *vf = vdpa_to_vf(vdpa_dev);

		vf->config_cb.callback = cb->callback;
		vf->config_cb.private = cb->private;
		}

		/*