[PATCH] crypto: hisilicon/qm - fix the qos value initialization

From: y00501072
Date: Sat Sep 17 2022 - 06:10:06 EST


From: Kai Ye <yekai13@xxxxxxxxxx>

The default qos value is not initialized when sriov is repeatedly enabled
and disabled. So add the vf qos value initialized in the sriov enable
process.

Signed-off-by: Kai Ye <yekai13@xxxxxxxxxx>
---
drivers/crypto/hisilicon/qm.c | 22 +++++++++++++++-------
1 file changed, 15 insertions(+), 7 deletions(-)

diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c
index 30fdf0673f00..8b387de69d22 100644
--- a/drivers/crypto/hisilicon/qm.c
+++ b/drivers/crypto/hisilicon/qm.c
@@ -4801,6 +4801,14 @@ void hisi_qm_debug_regs_clear(struct hisi_qm *qm)
}
EXPORT_SYMBOL_GPL(hisi_qm_debug_regs_clear);

+static void hisi_qm_init_vf_qos(struct hisi_qm *qm, int total_func)
+{
+ int i;
+
+ for (i = 1; i <= total_func; i++)
+ qm->factor[i].func_qos = QM_QOS_MAX_VAL;
+}
+
/**
* hisi_qm_sriov_enable() - enable virtual functions
* @pdev: the PCIe device
@@ -4834,6 +4842,10 @@ int hisi_qm_sriov_enable(struct pci_dev *pdev, int max_vfs)
}

num_vfs = max_vfs;
+
+ if (test_bit(QM_SUPPORT_FUNC_QOS, &qm->caps))
+ hisi_qm_init_vf_qos(qm, num_vfs);
+
ret = qm_vf_q_assign(qm, num_vfs);
if (ret) {
pci_err(pdev, "Can't assign queues for VF!\n");
@@ -4869,7 +4881,6 @@ EXPORT_SYMBOL_GPL(hisi_qm_sriov_enable);
int hisi_qm_sriov_disable(struct pci_dev *pdev, bool is_frozen)
{
struct hisi_qm *qm = pci_get_drvdata(pdev);
- int total_vfs = pci_sriov_get_totalvfs(qm->pdev);
int ret;

if (pci_vfs_assigned(pdev)) {
@@ -4884,9 +4895,6 @@ int hisi_qm_sriov_disable(struct pci_dev *pdev, bool is_frozen)
}

pci_disable_sriov(pdev);
- /* clear vf function shaper configure array */
- if (test_bit(QM_SUPPORT_FUNC_QOS, &qm->caps))
- memset(qm->factor + 1, 0, sizeof(struct qm_shaper_factor) * total_vfs);

ret = qm_clear_vft_config(qm);
if (ret)
@@ -6297,7 +6305,7 @@ static int hisi_qp_alloc_memory(struct hisi_qm *qm)
static int hisi_qm_memory_init(struct hisi_qm *qm)
{
struct device *dev = &qm->pdev->dev;
- int ret, total_func, i;
+ int ret, total_func;
size_t off = 0;

if (test_bit(QM_SUPPORT_FUNC_QOS, &qm->caps)) {
@@ -6306,8 +6314,8 @@ static int hisi_qm_memory_init(struct hisi_qm *qm)
if (!qm->factor)
return -ENOMEM;

- for (i = 0; i < total_func; i++)
- qm->factor[i].func_qos = QM_QOS_MAX_VAL;
+ /* Only the PF value needs to be initialized */
+ qm->factor[0].func_qos = QM_QOS_MAX_VAL;
}

#define QM_INIT_BUF(qm, type, num) do { \
--
2.17.1