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Date: Thu, 9 Jun 2022 20:31:18 +0800
From: Weili Qian <qianweili@...wei.com>
To: <herbert@...dor.apana.org.au>
CC: <linux-kernel@...r.kernel.org>, <linux-crypto@...r.kernel.org>,
<wangzhou1@...ilicon.com>, <liulongfang@...wei.com>
Subject: [PATCH 2/3] crypto: hisilicon/qm - move alloc qm->wq to qm.c
Before stopping the function, the driver needs to flush all the remaining
work about event irq. Therefore, accelerator drivers use a private
workqueue(qm->wq) to handle event irq instead of the system workqueue.
This patch moves alloc workqueue from sec_main.c and zip_main.c to qm.c.
Signed-off-by: Weili Qian <qianweili@...wei.com>
---
drivers/crypto/hisilicon/qm.c | 35 +++++++++++++++++-------
drivers/crypto/hisilicon/sec2/sec_main.c | 24 +---------------
drivers/crypto/hisilicon/zip/zip_main.c | 17 +-----------
3 files changed, 27 insertions(+), 49 deletions(-)
diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c
index 903896ab5be5..f8d36b68494e 100644
--- a/drivers/crypto/hisilicon/qm.c
+++ b/drivers/crypto/hisilicon/qm.c
@@ -959,10 +959,7 @@ static irqreturn_t do_qm_irq(int irq, void *data)
struct hisi_qm *qm = (struct hisi_qm *)data;
/* the workqueue created by device driver of QM */
- if (qm->wq)
- queue_work(qm->wq, &qm->work);
- else
- schedule_work(&qm->work);
+ queue_work(qm->wq, &qm->work);
return IRQ_HANDLED;
}
@@ -3134,11 +3131,8 @@ static int qm_stop_qp_nolock(struct hisi_qp *qp)
if (ret)
dev_err(dev, "Failed to drain out data for stopping!\n");
- if (qp->qm->wq)
- flush_workqueue(qp->qm->wq);
- else
- flush_work(&qp->qm->work);
+ flush_workqueue(qp->qm->wq);
if (unlikely(qp->is_resetting && atomic_read(&qp->qp_status.used)))
qp_stop_fail_cb(qp);
@@ -3672,6 +3666,11 @@ static void qm_last_regs_uninit(struct hisi_qm *qm)
debug->qm_last_words = NULL;
}
+static void hisi_qm_unint_work(struct hisi_qm *qm)
+{
+ destroy_workqueue(qm->wq);
+}
+
static void hisi_qm_memory_uninit(struct hisi_qm *qm)
{
struct device *dev = &qm->pdev->dev;
@@ -3698,6 +3697,7 @@ void hisi_qm_uninit(struct hisi_qm *qm)
qm_last_regs_uninit(qm);
qm_cmd_uninit(qm);
+ hisi_qm_unint_work(qm);
down_write(&qm->qps_lock);
if (!qm_avail_state(qm, QM_CLOSE)) {
@@ -6022,7 +6022,7 @@ static int hisi_qm_pci_init(struct hisi_qm *qm)
return ret;
}
-static void hisi_qm_init_work(struct hisi_qm *qm)
+static int hisi_qm_init_work(struct hisi_qm *qm)
{
INIT_WORK(&qm->work, qm_work_process);
if (qm->fun_type == QM_HW_PF)
@@ -6030,6 +6030,16 @@ static void hisi_qm_init_work(struct hisi_qm *qm)
if (qm->ver > QM_HW_V2)
INIT_WORK(&qm->cmd_process, qm_cmd_process);
+
+ qm->wq = alloc_workqueue("%s", WQ_HIGHPRI | WQ_MEM_RECLAIM |
+ WQ_UNBOUND, num_online_cpus(),
+ pci_name(qm->pdev));
+ if (!qm->wq) {
+ pci_err(qm->pdev, "failed to alloc workqueue!\n");
+ return -ENOMEM;
+ }
+
+ return 0;
}
static int hisi_qp_alloc_memory(struct hisi_qm *qm)
@@ -6180,7 +6190,10 @@ int hisi_qm_init(struct hisi_qm *qm)
if (ret)
goto err_alloc_uacce;
- hisi_qm_init_work(qm);
+ ret = hisi_qm_init_work(qm);
+ if (ret)
+ goto err_free_qm_memory;
+
qm_cmd_init(qm);
atomic_set(&qm->status.flags, QM_INIT);
@@ -6188,6 +6201,8 @@ int hisi_qm_init(struct hisi_qm *qm)
return 0;
+err_free_qm_memory:
+ hisi_qm_memory_uninit(qm);
err_alloc_uacce:
if (qm->use_sva) {
uacce_remove(qm->uacce);
diff --git a/drivers/crypto/hisilicon/sec2/sec_main.c b/drivers/crypto/hisilicon/sec2/sec_main.c
index 4d85d2cbf376..bdb690aaed12 100644
--- a/drivers/crypto/hisilicon/sec2/sec_main.c
+++ b/drivers/crypto/hisilicon/sec2/sec_main.c
@@ -1002,8 +1002,6 @@ static int sec_pf_probe_init(struct sec_dev *sec)
static int sec_qm_init(struct hisi_qm *qm, struct pci_dev *pdev)
{
- int ret;
-
qm->pdev = pdev;
qm->ver = pdev->revision;
qm->algs = "cipher\ndigest\naead";
@@ -1029,25 +1027,7 @@ static int sec_qm_init(struct hisi_qm *qm, struct pci_dev *pdev)
qm->qp_num = SEC_QUEUE_NUM_V1 - SEC_PF_DEF_Q_NUM;
}
- /*
- * WQ_HIGHPRI: SEC request must be low delayed,
- * so need a high priority workqueue.
- * WQ_UNBOUND: SEC task is likely with long
- * running CPU intensive workloads.
- */
- qm->wq = alloc_workqueue("%s", WQ_HIGHPRI | WQ_MEM_RECLAIM |
- WQ_UNBOUND, num_online_cpus(),
- pci_name(qm->pdev));
- if (!qm->wq) {
- pci_err(qm->pdev, "fail to alloc workqueue\n");
- return -ENOMEM;
- }
-
- ret = hisi_qm_init(qm);
- if (ret)
- destroy_workqueue(qm->wq);
-
- return ret;
+ return hisi_qm_init(qm);
}
static void sec_qm_uninit(struct hisi_qm *qm)
@@ -1078,8 +1058,6 @@ static int sec_probe_init(struct sec_dev *sec)
static void sec_probe_uninit(struct hisi_qm *qm)
{
hisi_qm_dev_err_uninit(qm);
-
- destroy_workqueue(qm->wq);
}
static void sec_iommu_used_check(struct sec_dev *sec)
diff --git a/drivers/crypto/hisilicon/zip/zip_main.c b/drivers/crypto/hisilicon/zip/zip_main.c
index 9c925e9c0a2d..c3303d99acac 100644
--- a/drivers/crypto/hisilicon/zip/zip_main.c
+++ b/drivers/crypto/hisilicon/zip/zip_main.c
@@ -990,8 +990,6 @@ static int hisi_zip_pf_probe_init(struct hisi_zip *hisi_zip)
static int hisi_zip_qm_init(struct hisi_qm *qm, struct pci_dev *pdev)
{
- int ret;
-
qm->pdev = pdev;
qm->ver = pdev->revision;
if (pdev->revision >= QM_HW_V3)
@@ -1021,25 +1019,12 @@ static int hisi_zip_qm_init(struct hisi_qm *qm, struct pci_dev *pdev)
qm->qp_num = HZIP_QUEUE_NUM_V1 - HZIP_PF_DEF_Q_NUM;
}
- qm->wq = alloc_workqueue("%s", WQ_HIGHPRI | WQ_MEM_RECLAIM |
- WQ_UNBOUND, num_online_cpus(),
- pci_name(qm->pdev));
- if (!qm->wq) {
- pci_err(qm->pdev, "fail to alloc workqueue\n");
- return -ENOMEM;
- }
-
- ret = hisi_qm_init(qm);
- if (ret)
- destroy_workqueue(qm->wq);
-
- return ret;
+ return hisi_qm_init(qm);
}
static void hisi_zip_qm_uninit(struct hisi_qm *qm)
{
hisi_qm_uninit(qm);
- destroy_workqueue(qm->wq);
}
static int hisi_zip_probe_init(struct hisi_zip *hisi_zip)
--
2.33.0
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