NVME_REG_CC
writel(fdev->cc_reg, fdev->bar + NVME_REG_CC);
fdev->cc_reg = readl(fdev->bar + NVME_REG_CC);
*(u32 *)(buf + NVME_REG_CC) = readl(bar + NVME_REG_CC);
ret = ctrl->ops->reg_write32(ctrl, NVME_REG_CC, ctrl->ctrl_config);
ret = ctrl->ops->reg_write32(ctrl, NVME_REG_CC, ctrl->ctrl_config);
ret = ctrl->ops->reg_write32(ctrl, NVME_REG_CC, ctrl->ctrl_config);
case NVME_REG_CC:
case NVME_REG_CC:
nvmet_pci_epf_bar_write32(ctrl, NVME_REG_CC, ctrl->cc);
nvmet_pci_epf_bar_write32(ctrl, NVME_REG_CC, ctrl->cc);
new_cc = nvmet_pci_epf_bar_read32(ctrl, NVME_REG_CC);
bar = pci_iomap(dev, 0, NVME_REG_CC + sizeof(cfg));
cfg = readl(bar + NVME_REG_CC);
writel(cfg, bar + NVME_REG_CC);