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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: BN6PR11MB0017.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 9a4c07f2-4ca7-4fc2-0bca-08d82944cb14 X-MS-Exchange-CrossTenant-originalarrivaltime: 16 Jul 2020 04:57:51.3109 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: KfS6OZBd+VLOT6PLPWiEUK6WujwaRUrLBZ19nvHIVbosx0PQRKWK7RE6k6ArzLmZpo/FBQsAs7h/Y7udnXK9lg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN6PR11MB1570 X-OriginatorOrg: intel.com Subject: Re: [dpdk-dev] [PATCH v5] net/i40e: fix modify the number of qps in VF X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" > -----Original Message----- > From: dev On Behalf Of alvinx.zhang@intel.com > Sent: Thursday, July 16, 2020 12:24 > To: Guo, Jia > Cc: Xing, Beilei ; dev@dpdk.org; Zhang, AlvinX > ; stable@dpdk.org > Subject: [dpdk-dev] [PATCH v5] net/i40e: fix modify the number of qps in = VF Fix and modify are all verbs, I think you want to fix the queue pair modify= process. > From: Alvin Zhang >=20 > If a VF request PF to allocate more number of queue pairs, the PF will fr= ee > the queue pairs which have been allocated and reset the VF. So, VF should > stop to work until all the process is done. This patch modify the process= of > the request queue pairs. To improve efficiency and eliminate code > redundancy, the promiscuous ops were also updated. >=20 > Fixes: c48eb308ed13 ("net/i40e: support VF request more queues") > Cc: stable@dpdk.org >=20 > Signed-off-by: Alvin Zhang > --- >=20 > V2: Update git log and modify codes according to comments. > V3: All the code was refactored. > V4, V5: Modify codes according to comments. > --- > drivers/net/i40e/i40e_ethdev_vf.c | 104 ++++++++++++++++++++----------- > ------- > 1 file changed, 54 insertions(+), 50 deletions(-) >=20 > diff --git a/drivers/net/i40e/i40e_ethdev_vf.c > b/drivers/net/i40e/i40e_ethdev_vf.c > index eca716a..69cab8e 100644 > --- a/drivers/net/i40e/i40e_ethdev_vf.c > +++ b/drivers/net/i40e/i40e_ethdev_vf.c > @@ -91,7 +91,8 @@ static int i40evf_vlan_filter_set(struct rte_eth_dev > *dev, > uint16_t vlan_id, int on); > static int i40evf_vlan_offload_set(struct rte_eth_dev *dev, int mask); = static > void i40evf_dev_close(struct rte_eth_dev *dev); -static int > i40evf_dev_reset(struct rte_eth_dev *dev); > +static int i40evf_dev_reset(struct rte_eth_dev *dev); static int > +i40evf_check_vf_reset_done(struct rte_eth_dev *dev); > static int i40evf_dev_promiscuous_enable(struct rte_eth_dev *dev); stat= ic > int i40evf_dev_promiscuous_disable(struct rte_eth_dev *dev); static int > i40evf_dev_allmulticast_enable(struct rte_eth_dev *dev); @@ -519,10 > +520,19 @@ struct rte_i40evf_xstats_name_off { >=20 > err =3D i40evf_execute_vf_cmd(dev, &args); >=20 > - if (err) > + if (err) { > PMD_DRV_LOG(ERR, "fail to execute command " > "CONFIG_PROMISCUOUS_MODE"); > - return err; > + > + if (err =3D=3D I40E_NOT_SUPPORTED) > + return -ENOTSUP; > + > + return -EAGAIN; > + } > + > + vf->promisc_unicast_enabled =3D enable_unicast; > + vf->promisc_multicast_enabled =3D enable_multicast; > + return 0; > } >=20 > static int > @@ -1081,12 +1091,28 @@ static int i40evf_dev_xstats_get(struct > rte_eth_dev *dev, > args.out_size =3D I40E_AQ_BUF_SZ; >=20 > rte_eal_alarm_cancel(i40evf_dev_alarm_handler, dev); > + > err =3D i40evf_execute_vf_cmd(dev, &args); > - if (err) > + > + rte_eal_alarm_set(I40EVF_ALARM_INTERVAL, > i40evf_dev_alarm_handler, > +dev); > + > + if (err !=3D I40E_SUCCESS) { > PMD_DRV_LOG(ERR, "fail to execute command > OP_REQUEST_QUEUES"); > + return err; > + } > + > + /* The PF will issue a reset to the VF when change the number of > + * queues. The PF will set I40E_VFGEN_RSTAT to COMPLETE first, > then > + * wait 10ms and set it to ACTIVE. In this duration, vf may not catch > + * the moment that COMPLETE is set. So, for vf, we'll try to wait a > + * long time. > + */ > + rte_delay_ms(100); > + > + err =3D i40evf_check_vf_reset_done(dev); > + if (err) > + PMD_DRV_LOG(ERR, "VF is still resetting"); >=20 > - rte_eal_alarm_set(I40EVF_ALARM_INTERVAL, > - i40evf_dev_alarm_handler, dev); > return err; > } >=20 > @@ -1514,7 +1540,7 @@ static int i40evf_dev_xstats_get(struct rte_eth_dev > *dev, > hw->bus.device =3D pci_dev->addr.devid; > hw->bus.func =3D pci_dev->addr.function; > hw->hw_addr =3D (void *)pci_dev->mem_resource[0].addr; > - hw->adapter_stopped =3D 0; > + hw->adapter_stopped =3D 1; > hw->adapter_closed =3D 0; >=20 > /* Pass the information to the rte_eth_dev_close() that it should > also @@ -1610,7 +1636,20 @@ static int eth_i40evf_pci_remove(struct > rte_pci_device *pci_dev) > ad->tx_vec_allowed =3D true; >=20 > if (num_queue_pairs > vf->vsi_res->num_queue_pairs) { > - int ret =3D 0; > + struct i40e_hw *hw; > + int ret; > + > + if (rte_eal_process_type() !=3D RTE_PROC_PRIMARY) { > + PMD_DRV_LOG(ERR, > + "For secondary processes, change queue > pairs is not supported!"); > + return -ENOTSUP; > + } > + > + hw =3D I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private); > + if (!hw->adapter_stopped) { > + PMD_DRV_LOG(ERR, "Device must be stopped > first!"); > + return -EBUSY; > + } >=20 > PMD_DRV_LOG(INFO, "change queue pairs from %u to %u", > vf->vsi_res->num_queue_pairs, > num_queue_pairs); @@ -2182,68 +2221,32 @@ static int > eth_i40evf_pci_remove(struct rte_pci_device *pci_dev) > i40evf_dev_promiscuous_enable(struct rte_eth_dev *dev) { > struct i40e_vf *vf =3D I40EVF_DEV_PRIVATE_TO_VF(dev->data- > >dev_private); > - int ret; > - > - ret =3D i40evf_config_promisc(dev, 1, vf->promisc_multicast_enabled); > - if (ret =3D=3D 0) > - vf->promisc_unicast_enabled =3D TRUE; > - else if (ret =3D=3D I40E_NOT_SUPPORTED) > - ret =3D -ENOTSUP; > - else > - ret =3D -EAGAIN; >=20 > - return ret; > + return i40evf_config_promisc(dev, true, > +vf->promisc_multicast_enabled); > } >=20 > static int > i40evf_dev_promiscuous_disable(struct rte_eth_dev *dev) { > struct i40e_vf *vf =3D I40EVF_DEV_PRIVATE_TO_VF(dev->data- > >dev_private); > - int ret; > - > - ret =3D i40evf_config_promisc(dev, 0, vf->promisc_multicast_enabled); > - if (ret =3D=3D 0) > - vf->promisc_unicast_enabled =3D FALSE; > - else if (ret =3D=3D I40E_NOT_SUPPORTED) > - ret =3D -ENOTSUP; > - else > - ret =3D -EAGAIN; >=20 > - return ret; > + return i40evf_config_promisc(dev, false, > +vf->promisc_multicast_enabled); > } >=20 > static int > i40evf_dev_allmulticast_enable(struct rte_eth_dev *dev) { > struct i40e_vf *vf =3D I40EVF_DEV_PRIVATE_TO_VF(dev->data- > >dev_private); > - int ret; > - > - ret =3D i40evf_config_promisc(dev, vf->promisc_unicast_enabled, 1); > - if (ret =3D=3D 0) > - vf->promisc_multicast_enabled =3D TRUE; > - else if (ret =3D=3D I40E_NOT_SUPPORTED) > - ret =3D -ENOTSUP; > - else > - ret =3D -EAGAIN; >=20 > - return ret; > + return i40evf_config_promisc(dev, vf->promisc_unicast_enabled, > true); > } >=20 > static int > i40evf_dev_allmulticast_disable(struct rte_eth_dev *dev) { > struct i40e_vf *vf =3D I40EVF_DEV_PRIVATE_TO_VF(dev->data- > >dev_private); > - int ret; > - > - ret =3D i40evf_config_promisc(dev, vf->promisc_unicast_enabled, 0); > - if (ret =3D=3D 0) > - vf->promisc_multicast_enabled =3D FALSE; > - else if (ret =3D=3D I40E_NOT_SUPPORTED) > - ret =3D -ENOTSUP; > - else > - ret =3D -EAGAIN; >=20 > - return ret; > + return i40evf_config_promisc(dev, vf->promisc_unicast_enabled, > false); > } >=20 > static int > @@ -2365,8 +2368,9 @@ static int eth_i40evf_pci_remove(struct > rte_pci_device *pci_dev) > * it is a workaround solution when work with kernel driver > * and it is not the normal way > */ > - i40evf_dev_promiscuous_disable(dev); > - i40evf_dev_allmulticast_disable(dev); > + if (vf->promisc_unicast_enabled || vf->promisc_multicast_enabled) > + i40evf_config_promisc(dev, false, false); > + > rte_eal_alarm_cancel(i40evf_dev_alarm_handler, dev); >=20 > i40evf_reset_vf(dev); > -- > 1.8.3.1