| Message ID | 1626770097-56989-1-git-send-email-moyufeng@huawei.com |
|---|---|
| State | New |
| Headers | show |
| Series | [RFC] net: hns3: add a module parameter wq_unbound | expand |
On Tue, Jul 20, 2021 at 04:34:57PM +0800, Yufeng Mo wrote: > To meet the requirements of different scenarios, the WQ_UNBOUND > flag of the workqueue is transferred as a module parameter. Users > can flexibly configure the usage mode as required. > > Signed-off-by: Yufeng Mo <moyufeng@huawei.com> > --- > drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 10 +++++++++- > drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 10 +++++++++- > 2 files changed, 18 insertions(+), 2 deletions(-) > > diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c > index dd3354a..9816592 100644 > --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c > +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c > @@ -76,6 +76,10 @@ static struct hnae3_ae_algo ae_algo; > > static struct workqueue_struct *hclge_wq; > > +static unsigned int wq_unbound; > +module_param(wq_unbound, uint, 0400); > +MODULE_PARM_DESC(wq_unbound, "Specifies WQ_UNBOUND flag for the workqueue, non-zero value takes effect"); Nice, but no. We don't like module parameters for such a basic thing. Somehow all other NIC drivers in the world works without it and hns3 will success too. Thanks > + > static const struct pci_device_id ae_algo_pci_tbl[] = { > {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_GE), 0}, > {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_25GE), 0}, > @@ -12936,7 +12940,11 @@ static int hclge_init(void) > { > pr_info("%s is initializing\n", HCLGE_NAME); > > - hclge_wq = alloc_workqueue("%s", 0, 0, HCLGE_NAME); > + if (wq_unbound) > + hclge_wq = alloc_workqueue("%s", WQ_UNBOUND, 0, HCLGE_NAME); > + else > + hclge_wq = alloc_workqueue("%s", 0, 0, HCLGE_NAME); > + > if (!hclge_wq) { > pr_err("%s: failed to create workqueue\n", HCLGE_NAME); > return -ENOMEM; > diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c > index 52eaf82..85f6772 100644 > --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c > +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c > @@ -21,6 +21,10 @@ static struct hnae3_ae_algo ae_algovf; > > static struct workqueue_struct *hclgevf_wq; > > +static unsigned int wq_unbound; > +module_param(wq_unbound, uint, 0400); > +MODULE_PARM_DESC(wq_unbound, "Specifies WQ_UNBOUND flag for the workqueue, non-zero value takes effect"); > + > static const struct pci_device_id ae_algovf_pci_tbl[] = { > {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_VF), 0}, > {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_RDMA_DCB_PFC_VF), > @@ -3855,7 +3859,11 @@ static int hclgevf_init(void) > { > pr_info("%s is initializing\n", HCLGEVF_NAME); > > - hclgevf_wq = alloc_workqueue("%s", 0, 0, HCLGEVF_NAME); > + if (wq_unbound) > + hclgevf_wq = alloc_workqueue("%s", WQ_UNBOUND, 0, HCLGEVF_NAME); > + else > + hclgevf_wq = alloc_workqueue("%s", 0, 0, HCLGEVF_NAME); > + > if (!hclgevf_wq) { > pr_err("%s: failed to create workqueue\n", HCLGEVF_NAME); > return -ENOMEM; > -- > 2.8.1 >
On 2021/7/20 17:01, Leon Romanovsky wrote: > On Tue, Jul 20, 2021 at 04:34:57PM +0800, Yufeng Mo wrote: >> To meet the requirements of different scenarios, the WQ_UNBOUND >> flag of the workqueue is transferred as a module parameter. Users >> can flexibly configure the usage mode as required. >> >> Signed-off-by: Yufeng Mo <moyufeng@huawei.com> >> --- >> drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 10 +++++++++- >> drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 10 +++++++++- >> 2 files changed, 18 insertions(+), 2 deletions(-) >> >> diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c >> index dd3354a..9816592 100644 >> --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c >> +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c >> @@ -76,6 +76,10 @@ static struct hnae3_ae_algo ae_algo; >> >> static struct workqueue_struct *hclge_wq; >> >> +static unsigned int wq_unbound; >> +module_param(wq_unbound, uint, 0400); >> +MODULE_PARM_DESC(wq_unbound, "Specifies WQ_UNBOUND flag for the workqueue, non-zero value takes effect"); > > Nice, but no. We don't like module parameters for such a basic thing. > Somehow all other NIC drivers in the world works without it and hns3 > will success too. > > Thanks > Thanks for your comments. I'll change it to WQ_UNBOUND mode fixedly for more reasonable workqueue scheduling in complex scenarios. Thanks >> + >> static const struct pci_device_id ae_algo_pci_tbl[] = { >> {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_GE), 0}, >> {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_25GE), 0}, >> @@ -12936,7 +12940,11 @@ static int hclge_init(void) >> { >> pr_info("%s is initializing\n", HCLGE_NAME); >> >> - hclge_wq = alloc_workqueue("%s", 0, 0, HCLGE_NAME); >> + if (wq_unbound) >> + hclge_wq = alloc_workqueue("%s", WQ_UNBOUND, 0, HCLGE_NAME); >> + else >> + hclge_wq = alloc_workqueue("%s", 0, 0, HCLGE_NAME); >> + >> if (!hclge_wq) { >> pr_err("%s: failed to create workqueue\n", HCLGE_NAME); >> return -ENOMEM; >> diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c >> index 52eaf82..85f6772 100644 >> --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c >> +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c >> @@ -21,6 +21,10 @@ static struct hnae3_ae_algo ae_algovf; >> >> static struct workqueue_struct *hclgevf_wq; >> >> +static unsigned int wq_unbound; >> +module_param(wq_unbound, uint, 0400); >> +MODULE_PARM_DESC(wq_unbound, "Specifies WQ_UNBOUND flag for the workqueue, non-zero value takes effect"); >> + >> static const struct pci_device_id ae_algovf_pci_tbl[] = { >> {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_VF), 0}, >> {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_RDMA_DCB_PFC_VF), >> @@ -3855,7 +3859,11 @@ static int hclgevf_init(void) >> { >> pr_info("%s is initializing\n", HCLGEVF_NAME); >> >> - hclgevf_wq = alloc_workqueue("%s", 0, 0, HCLGEVF_NAME); >> + if (wq_unbound) >> + hclgevf_wq = alloc_workqueue("%s", WQ_UNBOUND, 0, HCLGEVF_NAME); >> + else >> + hclgevf_wq = alloc_workqueue("%s", 0, 0, HCLGEVF_NAME); >> + >> if (!hclgevf_wq) { >> pr_err("%s: failed to create workqueue\n", HCLGEVF_NAME); >> return -ENOMEM; >> -- >> 2.8.1 >> > . >
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c index dd3354a..9816592 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -76,6 +76,10 @@ static struct hnae3_ae_algo ae_algo; static struct workqueue_struct *hclge_wq; +static unsigned int wq_unbound; +module_param(wq_unbound, uint, 0400); +MODULE_PARM_DESC(wq_unbound, "Specifies WQ_UNBOUND flag for the workqueue, non-zero value takes effect"); + static const struct pci_device_id ae_algo_pci_tbl[] = { {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_GE), 0}, {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_25GE), 0}, @@ -12936,7 +12940,11 @@ static int hclge_init(void) { pr_info("%s is initializing\n", HCLGE_NAME); - hclge_wq = alloc_workqueue("%s", 0, 0, HCLGE_NAME); + if (wq_unbound) + hclge_wq = alloc_workqueue("%s", WQ_UNBOUND, 0, HCLGE_NAME); + else + hclge_wq = alloc_workqueue("%s", 0, 0, HCLGE_NAME); + if (!hclge_wq) { pr_err("%s: failed to create workqueue\n", HCLGE_NAME); return -ENOMEM; diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c index 52eaf82..85f6772 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c @@ -21,6 +21,10 @@ static struct hnae3_ae_algo ae_algovf; static struct workqueue_struct *hclgevf_wq; +static unsigned int wq_unbound; +module_param(wq_unbound, uint, 0400); +MODULE_PARM_DESC(wq_unbound, "Specifies WQ_UNBOUND flag for the workqueue, non-zero value takes effect"); + static const struct pci_device_id ae_algovf_pci_tbl[] = { {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_VF), 0}, {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_RDMA_DCB_PFC_VF), @@ -3855,7 +3859,11 @@ static int hclgevf_init(void) { pr_info("%s is initializing\n", HCLGEVF_NAME); - hclgevf_wq = alloc_workqueue("%s", 0, 0, HCLGEVF_NAME); + if (wq_unbound) + hclgevf_wq = alloc_workqueue("%s", WQ_UNBOUND, 0, HCLGEVF_NAME); + else + hclgevf_wq = alloc_workqueue("%s", 0, 0, HCLGEVF_NAME); + if (!hclgevf_wq) { pr_err("%s: failed to create workqueue\n", HCLGEVF_NAME); return -ENOMEM;
To meet the requirements of different scenarios, the WQ_UNBOUND flag of the workqueue is transferred as a module parameter. Users can flexibly configure the usage mode as required. Signed-off-by: Yufeng Mo <moyufeng@huawei.com> --- drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 10 +++++++++- drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 10 +++++++++- 2 files changed, 18 insertions(+), 2 deletions(-)