Commit cf8167ec authored by Longfang Liu's avatar Longfang Liu Committed by Zheng Zengkai
Browse files

vfio/hisilicon: modify QM for live migration driver 

driver inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I473Q4?from=project-issue



----------------------------------------------------------------------

Add device status recording function for accelerator live migration driver.

Signed-off-by: default avatarLongfang Liu <liulongfang@huawei.com>
Reviewed-by: default avatarHao Fang <fanghao11@huawei.com>
Reviewed-by: default avatarMingqiang Ling <lingmingqiang@huawei.com>
Signed-off-by: default avatarZheng Zengkai <zhengzengkai@huawei.com>
parent 58754e77

drivers/crypto/hisilicon/qm.c

+15 −0
Original line number Diff line number Diff line
@@ -3266,6 +3266,13 @@ static int hisi_qp_memory_init(struct hisi_qm *qm, size_t dma_size, int id) 
	return 0;

}



static void hisi_qm_set_state(struct hisi_qm *qm, enum vf_state state)

{

	/* set vf driver state */

	if (qm->ver > QM_HW_V2)

		writel(state, qm->io_base + QM_VF_STATE);

}



static void hisi_qm_pre_init(struct hisi_qm *qm)

{

	struct pci_dev *pdev = qm->pdev;
@@ -3365,6 +3372,8 @@ void hisi_qm_uninit(struct hisi_qm *qm) 
				  qm->qdma.va, qm->qdma.dma);

	}



	hisi_qm_set_state(qm, VF_NOT_READY);



	qm_irq_unregister(qm);

	hisi_qm_pci_uninit(qm);

	uacce_remove(qm->uacce);
@@ -3578,6 +3587,8 @@ int hisi_qm_start(struct hisi_qm *qm) 
	if (!ret)

		atomic_set(&qm->status.flags, QM_START);



	hisi_qm_set_state(qm, VF_READY);



err_unlock:

	up_write(&qm->qps_lock);

	return ret;
@@ -3672,6 +3683,8 @@ int hisi_qm_stop(struct hisi_qm *qm, enum qm_stop_reason r) 
	struct device *dev = &qm->pdev->dev;

	int ret = 0;



	hisi_qm_set_state(qm, VF_PREPARE);



	down_write(&qm->qps_lock);



	qm->status.stop_reason = r;
@@ -5640,6 +5653,8 @@ static int hisi_qm_pci_init(struct hisi_qm *qm) 
		goto err_get_pci_res;

	pci_set_master(pdev);



	hisi_qm_set_state(qm, VF_PREPARE);



	if (!qm->ops->get_irq_num) {

		ret = -EOPNOTSUPP;

		goto err_get_pci_res;

drivers/crypto/hisilicon/qm.h

+7 −0
Original line number Diff line number Diff line
@@ -80,6 +80,7 @@ 
#define QM_SHAPER_CFG			0x100164

#define QM_SHAPER_ENABLE		BIT(30)

#define QM_SHAPER_TYPE1_OFFSET		10

#define QM_VF_STATE			0x0060



/* page number for queue file region */

#define QM_DOORBELL_PAGE_NR		1
@@ -109,6 +110,12 @@ enum qp_state { 
	QP_CLOSE,

};



enum vf_state {

	VF_READY = 0x0,

	VF_NOT_READY,

	VF_PREPARE,

};



enum qm_hw_ver {

	QM_HW_UNKNOWN = -1,

	QM_HW_V1 = 0x20,