unsigned int count;
};
+struct vnic_intr_coal_timer_info {
+ u32 mul;
+ u32 div;
+ u32 max_usec;
+};
+
struct vnic_dev {
void *priv;
struct pci_dev *pdev;
enum vnic_proxy_type proxy;
u32 proxy_index;
u64 args[VNIC_DEVCMD_NARGS];
+ struct vnic_intr_coal_timer_info intr_coal_timer_info;
};
#define VNIC_MAX_RES_HDR_SIZE \
return vnic_dev_cmd(vdev, CMD_DEINIT, &a0, &a1, wait);
}
+void vnic_dev_intr_coal_timer_info_default(struct vnic_dev *vdev)
+{
+ /* Default: hardware intr coal timer is in units of 1.5 usecs */
+ vdev->intr_coal_timer_info.mul = 2;
+ vdev->intr_coal_timer_info.div = 3;
+ vdev->intr_coal_timer_info.max_usec =
+ vnic_dev_intr_coal_timer_hw_to_usec(vdev, 0xffff);
+}
+
+int vnic_dev_intr_coal_timer_info(struct vnic_dev *vdev)
+{
+ int wait = 1000;
+ int err;
+
+ memset(vdev->args, 0, sizeof(vdev->args));
+
+ err = _vnic_dev_cmd(vdev, CMD_INTR_COAL_CONVERT, wait);
+
+ /* Use defaults when firmware doesn't support the devcmd at all or
+ * supports it for only specific hardware
+ */
+ if ((err == ERR_ECMDUNKNOWN) ||
+ (!err && !(vdev->args[0] && vdev->args[1] && vdev->args[2]))) {
+ pr_warning("Using default conversion factor for "
+ "interrupt coalesce timer\n");
+ vnic_dev_intr_coal_timer_info_default(vdev);
+ return 0;
+ }
+
+ vdev->intr_coal_timer_info.mul = (u32) vdev->args[0];
+ vdev->intr_coal_timer_info.div = (u32) vdev->args[1];
+ vdev->intr_coal_timer_info.max_usec = (u32) vdev->args[2];
+
+ return err;
+}
+
int vnic_dev_link_status(struct vnic_dev *vdev)
{
if (!vnic_dev_notify_ready(vdev))
return vdev->intr_mode;
}
+u32 vnic_dev_intr_coal_timer_usec_to_hw(struct vnic_dev *vdev, u32 usec)
+{
+ return (usec * vdev->intr_coal_timer_info.mul) /
+ vdev->intr_coal_timer_info.div;
+}
+
+u32 vnic_dev_intr_coal_timer_hw_to_usec(struct vnic_dev *vdev, u32 hw_cycles)
+{
+ return (hw_cycles * vdev->intr_coal_timer_info.div) /
+ vdev->intr_coal_timer_info.mul;
+}
+
+u32 vnic_dev_get_intr_coal_timer_max(struct vnic_dev *vdev)
+{
+ return vdev->intr_coal_timer_info.max_usec;
+}
+
void vnic_dev_unregister(struct vnic_dev *vdev)
{
if (vdev) {