Re: [dpdk-dev] [PATCH v2 2/4] raw/ifpga/base: free resources when destroying ifpga device

["Zhang, Qi Z" <qi.z.zhang@intel.com>]

> -----Original Message-----
> From: dev <dev-bounces@dpdk.org> On Behalf Of Xu, Rosen
> Sent: Tuesday, September 29, 2020 9:43 AM
> To: Zhang, Tianfei <tianfei.zhang@intel.com>; dev@dpdk.org; Huang, Wei
> <wei.huang@intel.com>
> Subject: Re: [dpdk-dev] [PATCH v2 2/4] raw/ifpga/base: free resources when
> destroying ifpga device
> 
> Hi,
> 
> > -----Original Message-----
> > From: Zhang, Tianfei <tianfei.zhang@intel.com>
> > Sent: Monday, September 28, 2020 9:40
> > To: dev@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Huang, Wei
> > <wei.huang@intel.com>
> > Cc: Zhang, Tianfei <tianfei.zhang@intel.com>
> > Subject: [PATCH v2 2/4] raw/ifpga/base: free resources when destroying
> > ifpga device
> >
> > From: Wei Huang <wei.huang@intel.com>
> >
> > Add two functions to complete the resources free work, one is
> > ifpga_adapter_destroy(), the other is ifpga_bus_uinit().
> > Then call opae_adapter_destroy() in ifpga_rawdev_destroy().
> >
> > Additional modifiction is removing opae_adapter_free() from
> > ifpga_rawdev_destroy() because opae adapter will be released in
> > rte_rawdev_pmd_release().
> >
> > Signed-off-by: Wei Huang <wei.huang@intel.com>
> > Signed-off-by: Tianfei zhang <tianfei.zhang@intel.com>
> > ---
> >  drivers/raw/ifpga/base/ifpga_api.c       | 12 ++++++++++++
> >  drivers/raw/ifpga/base/ifpga_enumerate.c | 16 ++++++++++++++++
> > drivers/raw/ifpga/base/ifpga_enumerate.h |  1 +
> >  drivers/raw/ifpga/ifpga_rawdev.c         |  8 ++++++--
> >  4 files changed, 35 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/raw/ifpga/base/ifpga_api.c
> > b/drivers/raw/ifpga/base/ifpga_api.c
> > index 6dbd7159e..1ff57fa18 100644
> > --- a/drivers/raw/ifpga/base/ifpga_api.c
> > +++ b/drivers/raw/ifpga/base/ifpga_api.c
> > @@ -330,8 +330,20 @@ static int ifpga_adapter_enumerate(struct
> > opae_adapter *adapter)
> >  	return -ENOMEM;
> >  }
> >
> > +static void ifpga_adapter_destroy(struct opae_adapter *adapter) {
> > +	struct ifpga_fme_hw *fme;
> > +
> > +	if (adapter && adapter->mgr && adapter->mgr->data) {
> > +		fme = (struct ifpga_fme_hw *)adapter->mgr->data;
> > +		if (fme->parent)
> > +			ifpga_bus_uinit(fme->parent);
> > +	}
> > +}
> > +
> >  struct opae_adapter_ops ifpga_adapter_ops = {
> >  	.enumerate = ifpga_adapter_enumerate,
> > +	.destroy = ifpga_adapter_destroy,
> >  };
> >
> >  /**
> > diff --git a/drivers/raw/ifpga/base/ifpga_enumerate.c
> > b/drivers/raw/ifpga/base/ifpga_enumerate.c
> > index b8846e373..48b8af458 100644
> > --- a/drivers/raw/ifpga/base/ifpga_enumerate.c
> > +++ b/drivers/raw/ifpga/base/ifpga_enumerate.c
> > @@ -722,3 +722,19 @@ int ifpga_bus_init(struct ifpga_hw *hw)
> >
> >  	return 0;
> >  }
> > +
> > +int ifpga_bus_uinit(struct ifpga_hw *hw) {
> > +	int i;
> > +	struct ifpga_port_hw *port;
> > +
> > +	if (hw) {
> > +		fme_hw_uinit(&hw->fme);
> > +		for (i = 0; i < MAX_FPGA_PORT_NUM; i++) {
> > +			port = &hw->port[i];
> > +			port_hw_uinit(port);
> > +		}
> > +	}
> > +
> > +	return 0;
> > +}
> > diff --git a/drivers/raw/ifpga/base/ifpga_enumerate.h
> > b/drivers/raw/ifpga/base/ifpga_enumerate.h
> > index 14131e320..95ed594cd 100644
> > --- a/drivers/raw/ifpga/base/ifpga_enumerate.h
> > +++ b/drivers/raw/ifpga/base/ifpga_enumerate.h
> > @@ -6,6 +6,7 @@
> >  #define _IFPGA_ENUMERATE_H_
> >
> >  int ifpga_bus_init(struct ifpga_hw *hw);
> > +int ifpga_bus_uinit(struct ifpga_hw *hw);
> >  int ifpga_bus_enumerate(struct ifpga_hw *hw);
> >
> >  #endif /* _IFPGA_ENUMERATE_H_ */
> > diff --git a/drivers/raw/ifpga/ifpga_rawdev.c
> > b/drivers/raw/ifpga/ifpga_rawdev.c
> > index 374a7ff1d..98b02b5fa 100644
> > --- a/drivers/raw/ifpga/ifpga_rawdev.c
> > +++ b/drivers/raw/ifpga/ifpga_rawdev.c
> > @@ -1535,6 +1535,7 @@ ifpga_rawdev_destroy(struct rte_pci_device
> > *pci_dev)
> >  	char name[RTE_RAWDEV_NAME_MAX_LEN];
> >  	struct opae_adapter *adapter;
> >  	struct opae_manager *mgr;
> > +	struct ifpga_rawdev *dev;
> >
> >  	if (!pci_dev) {
> >  		IFPGA_RAWDEV_PMD_ERR("Invalid pci_dev of the device!"); @@
> -1554,6
> > +1555,9 @@ ifpga_rawdev_destroy(struct rte_pci_device
> > *pci_dev)
> >  		IFPGA_RAWDEV_PMD_ERR("Invalid device name (%s)", name);
> >  		return -EINVAL;
> >  	}
> > +	dev = ifpga_rawdev_get(rawdev);
> > +	if (dev)
> > +		dev->rawdev = NULL;
> >
> >  	adapter = ifpga_rawdev_get_priv(rawdev);
> >  	if (!adapter)
> > @@ -1564,11 +1568,11 @@ ifpga_rawdev_destroy(struct rte_pci_device
> > *pci_dev)
> >  		return -ENODEV;
> >
> >  	if (ifpga_unregister_msix_irq(IFPGA_FME_IRQ, 0,
> > -				fme_interrupt_handler, mgr))
> > +				fme_interrupt_handler, mgr) < 0)
> >  		return -EINVAL;
> >
> > +	opae_adapter_destroy(adapter);
> >  	opae_adapter_data_free(adapter->data);
> > -	opae_adapter_free(adapter);
> >
> >  	/* rte_rawdev_close is called by pmd_release */
> >  	ret = rte_rawdev_pmd_release(rawdev);
> > --
> > 2.17.1
> 
> Acked-by: Rosen Xu <rosen.xu@intel.com>

Applied to dpdk-next-net-intel.

Thanks
Qi