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Date: Fri, 4 Mar 2022 17:06:12 +0800
From: Zhou Wang <wangzhou1@...ilicon.com>
To: Shameer Kolothum <shameerali.kolothum.thodi@...wei.com>,
<kvm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-crypto@...r.kernel.org>
CC: <linux-pci@...r.kernel.org>, <alex.williamson@...hat.com>,
<jgg@...dia.com>, <cohuck@...hat.com>, <mgurtovoy@...dia.com>,
<yishaih@...dia.com>, <linuxarm@...wei.com>,
<liulongfang@...wei.com>, <prime.zeng@...ilicon.com>,
<jonathan.cameron@...wei.com>
Subject: Re: [PATCH v8 2/9] crypto: hisilicon/qm: Move few definitions to
common header
> From: Longfang Liu <liulongfang@...wei.com>>
> Move Doorbell and Mailbox definitions to common header file.
> Also export QM mailbox functions.
>
> This will be useful when we introduce VFIO PCI HiSilicon ACC live
> migration driver.
>
> Signed-off-by: Longfang Liu <liulongfang@...wei.com>
> Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@...wei.com>
Looks good to me, so:
Acked-by: Zhou Wang <wangzhou1@...ilicon.com>
Thanks,
Zhou
> ---
> drivers/crypto/hisilicon/qm.c | 58 +++++++++++------------------------
> include/linux/hisi_acc_qm.h | 38 +++++++++++++++++++++++
> 2 files changed, 56 insertions(+), 40 deletions(-)
>
> diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c
> index ed23e1d3fa27..c88e013371af 100644
> --- a/drivers/crypto/hisilicon/qm.c
> +++ b/drivers/crypto/hisilicon/qm.c
> @@ -33,23 +33,6 @@
> #define QM_ABNORMAL_EVENT_IRQ_VECTOR 3
>
> /* mailbox */
> -#define QM_MB_CMD_SQC 0x0
> -#define QM_MB_CMD_CQC 0x1
> -#define QM_MB_CMD_EQC 0x2
> -#define QM_MB_CMD_AEQC 0x3
> -#define QM_MB_CMD_SQC_BT 0x4
> -#define QM_MB_CMD_CQC_BT 0x5
> -#define QM_MB_CMD_SQC_VFT_V2 0x6
> -#define QM_MB_CMD_STOP_QP 0x8
> -#define QM_MB_CMD_SRC 0xc
> -#define QM_MB_CMD_DST 0xd
> -
> -#define QM_MB_CMD_SEND_BASE 0x300
> -#define QM_MB_EVENT_SHIFT 8
> -#define QM_MB_BUSY_SHIFT 13
> -#define QM_MB_OP_SHIFT 14
> -#define QM_MB_CMD_DATA_ADDR_L 0x304
> -#define QM_MB_CMD_DATA_ADDR_H 0x308
> #define QM_MB_PING_ALL_VFS 0xffff
> #define QM_MB_CMD_DATA_SHIFT 32
> #define QM_MB_CMD_DATA_MASK GENMASK(31, 0)
> @@ -103,19 +86,12 @@
> #define QM_DB_CMD_SHIFT_V1 16
> #define QM_DB_INDEX_SHIFT_V1 32
> #define QM_DB_PRIORITY_SHIFT_V1 48
> -#define QM_DOORBELL_SQ_CQ_BASE_V2 0x1000
> -#define QM_DOORBELL_EQ_AEQ_BASE_V2 0x2000
> #define QM_QUE_ISO_CFG_V 0x0030
> #define QM_PAGE_SIZE 0x0034
> #define QM_QUE_ISO_EN 0x100154
> #define QM_CAPBILITY 0x100158
> #define QM_QP_NUN_MASK GENMASK(10, 0)
> #define QM_QP_DB_INTERVAL 0x10000
> -#define QM_QP_MAX_NUM_SHIFT 11
> -#define QM_DB_CMD_SHIFT_V2 12
> -#define QM_DB_RAND_SHIFT_V2 16
> -#define QM_DB_INDEX_SHIFT_V2 32
> -#define QM_DB_PRIORITY_SHIFT_V2 48
>
> #define QM_MEM_START_INIT 0x100040
> #define QM_MEM_INIT_DONE 0x100044
> @@ -693,7 +669,7 @@ static void qm_mb_pre_init(struct qm_mailbox *mailbox, u8 cmd,
> }
>
> /* return 0 mailbox ready, -ETIMEDOUT hardware timeout */
> -static int qm_wait_mb_ready(struct hisi_qm *qm)
> +int hisi_qm_wait_mb_ready(struct hisi_qm *qm)
> {
> u32 val;
>
> @@ -701,6 +677,7 @@ static int qm_wait_mb_ready(struct hisi_qm *qm)
> val, !((val >> QM_MB_BUSY_SHIFT) &
> 0x1), POLL_PERIOD, POLL_TIMEOUT);
> }
> +EXPORT_SYMBOL_GPL(hisi_qm_wait_mb_ready);
>
> /* 128 bit should be written to hardware at one time to trigger a mailbox */
> static void qm_mb_write(struct hisi_qm *qm, const void *src)
> @@ -726,14 +703,14 @@ static void qm_mb_write(struct hisi_qm *qm, const void *src)
>
> static int qm_mb_nolock(struct hisi_qm *qm, struct qm_mailbox *mailbox)
> {
> - if (unlikely(qm_wait_mb_ready(qm))) {
> + if (unlikely(hisi_qm_wait_mb_ready(qm))) {
> dev_err(&qm->pdev->dev, "QM mailbox is busy to start!\n");
> goto mb_busy;
> }
>
> qm_mb_write(qm, mailbox);
>
> - if (unlikely(qm_wait_mb_ready(qm))) {
> + if (unlikely(hisi_qm_wait_mb_ready(qm))) {
> dev_err(&qm->pdev->dev, "QM mailbox operation timeout!\n");
> goto mb_busy;
> }
> @@ -745,8 +722,8 @@ static int qm_mb_nolock(struct hisi_qm *qm, struct qm_mailbox *mailbox)
> return -EBUSY;
> }
>
> -static int qm_mb(struct hisi_qm *qm, u8 cmd, dma_addr_t dma_addr, u16 queue,
> - bool op)
> +int hisi_qm_mb(struct hisi_qm *qm, u8 cmd, dma_addr_t dma_addr, u16 queue,
> + bool op)
> {
> struct qm_mailbox mailbox;
> int ret;
> @@ -762,6 +739,7 @@ static int qm_mb(struct hisi_qm *qm, u8 cmd, dma_addr_t dma_addr, u16 queue,
>
> return ret;
> }
> +EXPORT_SYMBOL_GPL(hisi_qm_mb);
>
> static void qm_db_v1(struct hisi_qm *qm, u16 qn, u8 cmd, u16 index, u8 priority)
> {
> @@ -1351,7 +1329,7 @@ static int qm_get_vft_v2(struct hisi_qm *qm, u32 *base, u32 *number)
> u64 sqc_vft;
> int ret;
>
> - ret = qm_mb(qm, QM_MB_CMD_SQC_VFT_V2, 0, 0, 1);
> + ret = hisi_qm_mb(qm, QM_MB_CMD_SQC_VFT_V2, 0, 0, 1);
> if (ret)
> return ret;
>
> @@ -1725,12 +1703,12 @@ static int dump_show(struct hisi_qm *qm, void *info,
>
> static int qm_dump_sqc_raw(struct hisi_qm *qm, dma_addr_t dma_addr, u16 qp_id)
> {
> - return qm_mb(qm, QM_MB_CMD_SQC, dma_addr, qp_id, 1);
> + return hisi_qm_mb(qm, QM_MB_CMD_SQC, dma_addr, qp_id, 1);
> }
>
> static int qm_dump_cqc_raw(struct hisi_qm *qm, dma_addr_t dma_addr, u16 qp_id)
> {
> - return qm_mb(qm, QM_MB_CMD_CQC, dma_addr, qp_id, 1);
> + return hisi_qm_mb(qm, QM_MB_CMD_CQC, dma_addr, qp_id, 1);
> }
>
> static int qm_sqc_dump(struct hisi_qm *qm, const char *s)
> @@ -1842,7 +1820,7 @@ static int qm_eqc_aeqc_dump(struct hisi_qm *qm, char *s, size_t size,
> if (IS_ERR(xeqc))
> return PTR_ERR(xeqc);
>
> - ret = qm_mb(qm, cmd, xeqc_dma, 0, 1);
> + ret = hisi_qm_mb(qm, cmd, xeqc_dma, 0, 1);
> if (ret)
> goto err_free_ctx;
>
> @@ -2495,7 +2473,7 @@ static int qm_ping_pf(struct hisi_qm *qm, u64 cmd)
>
> static int qm_stop_qp(struct hisi_qp *qp)
> {
> - return qm_mb(qp->qm, QM_MB_CMD_STOP_QP, 0, qp->qp_id, 0);
> + return hisi_qm_mb(qp->qm, QM_MB_CMD_STOP_QP, 0, qp->qp_id, 0);
> }
>
> static int qm_set_msi(struct hisi_qm *qm, bool set)
> @@ -2763,7 +2741,7 @@ static int qm_sq_ctx_cfg(struct hisi_qp *qp, int qp_id, u32 pasid)
> return -ENOMEM;
> }
>
> - ret = qm_mb(qm, QM_MB_CMD_SQC, sqc_dma, qp_id, 0);
> + ret = hisi_qm_mb(qm, QM_MB_CMD_SQC, sqc_dma, qp_id, 0);
> dma_unmap_single(dev, sqc_dma, sizeof(struct qm_sqc), DMA_TO_DEVICE);
> kfree(sqc);
>
> @@ -2804,7 +2782,7 @@ static int qm_cq_ctx_cfg(struct hisi_qp *qp, int qp_id, u32 pasid)
> return -ENOMEM;
> }
>
> - ret = qm_mb(qm, QM_MB_CMD_CQC, cqc_dma, qp_id, 0);
> + ret = hisi_qm_mb(qm, QM_MB_CMD_CQC, cqc_dma, qp_id, 0);
> dma_unmap_single(dev, cqc_dma, sizeof(struct qm_cqc), DMA_TO_DEVICE);
> kfree(cqc);
>
> @@ -3655,7 +3633,7 @@ static int qm_eq_ctx_cfg(struct hisi_qm *qm)
> return -ENOMEM;
> }
>
> - ret = qm_mb(qm, QM_MB_CMD_EQC, eqc_dma, 0, 0);
> + ret = hisi_qm_mb(qm, QM_MB_CMD_EQC, eqc_dma, 0, 0);
> dma_unmap_single(dev, eqc_dma, sizeof(struct qm_eqc), DMA_TO_DEVICE);
> kfree(eqc);
>
> @@ -3684,7 +3662,7 @@ static int qm_aeq_ctx_cfg(struct hisi_qm *qm)
> return -ENOMEM;
> }
>
> - ret = qm_mb(qm, QM_MB_CMD_AEQC, aeqc_dma, 0, 0);
> + ret = hisi_qm_mb(qm, QM_MB_CMD_AEQC, aeqc_dma, 0, 0);
> dma_unmap_single(dev, aeqc_dma, sizeof(struct qm_aeqc), DMA_TO_DEVICE);
> kfree(aeqc);
>
> @@ -3723,11 +3701,11 @@ static int __hisi_qm_start(struct hisi_qm *qm)
> if (ret)
> return ret;
>
> - ret = qm_mb(qm, QM_MB_CMD_SQC_BT, qm->sqc_dma, 0, 0);
> + ret = hisi_qm_mb(qm, QM_MB_CMD_SQC_BT, qm->sqc_dma, 0, 0);
> if (ret)
> return ret;
>
> - ret = qm_mb(qm, QM_MB_CMD_CQC_BT, qm->cqc_dma, 0, 0);
> + ret = hisi_qm_mb(qm, QM_MB_CMD_CQC_BT, qm->cqc_dma, 0, 0);
> if (ret)
> return ret;
>
> diff --git a/include/linux/hisi_acc_qm.h b/include/linux/hisi_acc_qm.h
> index 3068093229a5..6a6477c34666 100644
> --- a/include/linux/hisi_acc_qm.h
> +++ b/include/linux/hisi_acc_qm.h
> @@ -34,6 +34,40 @@
> #define QM_WUSER_M_CFG_ENABLE 0x1000a8
> #define WUSER_M_CFG_ENABLE 0xffffffff
>
> +/* mailbox */
> +#define QM_MB_CMD_SQC 0x0
> +#define QM_MB_CMD_CQC 0x1
> +#define QM_MB_CMD_EQC 0x2
> +#define QM_MB_CMD_AEQC 0x3
> +#define QM_MB_CMD_SQC_BT 0x4
> +#define QM_MB_CMD_CQC_BT 0x5
> +#define QM_MB_CMD_SQC_VFT_V2 0x6
> +#define QM_MB_CMD_STOP_QP 0x8
> +#define QM_MB_CMD_SRC 0xc
> +#define QM_MB_CMD_DST 0xd
> +
> +#define QM_MB_CMD_SEND_BASE 0x300
> +#define QM_MB_EVENT_SHIFT 8
> +#define QM_MB_BUSY_SHIFT 13
> +#define QM_MB_OP_SHIFT 14
> +#define QM_MB_CMD_DATA_ADDR_L 0x304
> +#define QM_MB_CMD_DATA_ADDR_H 0x308
> +#define QM_MB_MAX_WAIT_CNT 6000
> +
> +/* doorbell */
> +#define QM_DOORBELL_CMD_SQ 0
> +#define QM_DOORBELL_CMD_CQ 1
> +#define QM_DOORBELL_CMD_EQ 2
> +#define QM_DOORBELL_CMD_AEQ 3
> +
> +#define QM_DOORBELL_SQ_CQ_BASE_V2 0x1000
> +#define QM_DOORBELL_EQ_AEQ_BASE_V2 0x2000
> +#define QM_QP_MAX_NUM_SHIFT 11
> +#define QM_DB_CMD_SHIFT_V2 12
> +#define QM_DB_RAND_SHIFT_V2 16
> +#define QM_DB_INDEX_SHIFT_V2 32
> +#define QM_DB_PRIORITY_SHIFT_V2 48
> +
> /* qm cache */
> #define QM_CACHE_CTL 0x100050
> #define SQC_CACHE_ENABLE BIT(0)
> @@ -414,6 +448,10 @@ pci_ers_result_t hisi_qm_dev_slot_reset(struct pci_dev *pdev);
> void hisi_qm_reset_prepare(struct pci_dev *pdev);
> void hisi_qm_reset_done(struct pci_dev *pdev);
>
> +int hisi_qm_wait_mb_ready(struct hisi_qm *qm);
> +int hisi_qm_mb(struct hisi_qm *qm, u8 cmd, dma_addr_t dma_addr, u16 queue,
> + bool op);
> +
> struct hisi_acc_sgl_pool;
> struct hisi_acc_hw_sgl *hisi_acc_sg_buf_map_to_hw_sgl(struct device *dev,
> struct scatterlist *sgl, struct hisi_acc_sgl_pool *pool,
>
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