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Wed, 17 Jul 2019 06:01:47 +0000 From: "Hyong Youb Kim (hyonkim)" To: Nithin Dabilpuram , David Marchand , Thomas Monjalon , "Ferruh Yigit" , Igor Russkikh , Pavel Belous , Allain Legacy , Matt Peters , "Ravi Kumar" , Rasesh Mody , Shahed Shaikh , Wenzhuo Lu , Qi Zhang , Xiao Wang , Beilei Xing , Jingjing Wu , Qiming Yang , Konstantin Ananyev , Alejandro Lucero , Andrew Rybchenko , Maxime Coquelin , Tiwei Bie , Zhihong Wang , "Yong Wang" CC: "jerinj@marvell.com" , "John Daley (johndale)" , "dev@dpdk.org" Thread-Topic: [RFC PATCH v3 3/3] drivers/net: use unmask API in interrupt handlers Thread-Index: AQHVO/XTka6U9siSAE21qK+CB2h8LabOULmg Date: Wed, 17 Jul 2019 06:01:47 +0000 Message-ID: References: <20190716164424.16776-1-ndabilpuram@marvell.com> <20190716164424.16776-3-ndabilpuram@marvell.com> In-Reply-To: <20190716164424.16776-3-ndabilpuram@marvell.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=hyonkim@cisco.com; 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DIR:OUT; SFP:1101; SCL:1; SRVR:MWHPR11MB1837; H:MWHPR11MB1839.namprd11.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:1; received-spf: None (protection.outlook.com: cisco.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: +lvwsUVKiOfE01xeOqI4YYvx/BeD4evMNTeeGuK5vSs094W/g3SjwhK7JPw9F+Uw680BStwJElD7umMQLgWHNfveRPdewN1dCEGRSqhW/WW78iwStRgdiJE8DwrR2NEfUjkI6kdoK+Y5RliQXo6r70lVirNQ4pZr8hrdOzYaL0nIArjC3CrLSHNosnsYwTqFuo4+y4G3LfvtgeLlReiY7b/AItwRzO+/Vyutl6XWv3Cbn+X9iE/WRQgISGTmhLqTWWjQzgdun+SmILgd7OunFwsvL/P4gPyk2d9tCIZl/EdY+824nwEGyHeCqTNQSIz197neQlhbN+epQHqjkLMAX6oBEQnWHnFK56j/2aP5iOh8j7MHNX9i7pvU7apyGKTIXFXkvvoJBSzics5ondwrikNhAHoNzvsD0QT9ysUYnm0= Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: 0a3cb5d9-ec57-42f7-8aea-08d70a7c4102 X-MS-Exchange-CrossTenant-originalarrivaltime: 17 Jul 2019 06:01:47.5960 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 5ae1af62-9505-4097-a69a-c1553ef7840e X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: hyonkim@cisco.com X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR11MB1837 X-OriginatorOrg: cisco.com X-Outbound-SMTP-Client: 173.37.102.16, xch-rcd-006.cisco.com X-Outbound-Node: rcdn-core-12.cisco.com Subject: Re: [dpdk-dev] [RFC PATCH v3 3/3] drivers/net: use unmask API in interrupt handlers 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: Nithin Dabilpuram > Sent: Wednesday, July 17, 2019 1:44 AM [...] > Subject: [RFC PATCH v3 3/3] drivers/net: use unmask API in interrupt > handlers >=20 > Replace rte_intr_enable() with rte_intr_unmask() API > for unmasking in interrupt handlers and rx_queue_intr_enable() > in callbacks of PMD's whose original intent was to unmask interrupts > after handling is completed if device is backed by UIO, IGB_UIO or > VFIO(with INTx). >=20 > Signed-off-by: Nithin Dabilpuram > --- >=20 > v3: > * Change all PMD's that use rte_intr_enable() in > rx_queue_intr_enable() or in irq handler to use > new unmask api. >=20 > drivers/net/atlantic/atl_ethdev.c | 2 +- > drivers/net/avp/avp_ethdev.c | 2 +- > drivers/net/axgbe/axgbe_ethdev.c | 4 ++-- > drivers/net/bnx2x/bnx2x_ethdev.c | 2 +- > drivers/net/e1000/em_ethdev.c | 4 ++-- > drivers/net/e1000/igb_ethdev.c | 6 +++--- > drivers/net/fm10k/fm10k_ethdev.c | 6 +++--- > drivers/net/i40e/i40e_ethdev.c | 2 +- > drivers/net/iavf/iavf_ethdev.c | 2 +- > drivers/net/ice/ice_ethdev.c | 4 ++-- > drivers/net/ixgbe/ixgbe_ethdev.c | 6 +++--- > drivers/net/nfp/nfp_net.c | 2 +- > drivers/net/qede/qede_ethdev.c | 8 ++++---- > drivers/net/sfc/sfc_intr.c | 4 ++-- > drivers/net/virtio/virtio_ethdev.c | 16 +++++++++++++++- > drivers/net/vmxnet3/vmxnet3_ethdev.c | 2 +- > 16 files changed, 43 insertions(+), 29 deletions(-) >=20 [...] > diff --git a/drivers/net/nfp/nfp_net.c b/drivers/net/nfp/nfp_net.c > index 1a7aa17..5484d31 100644 > --- a/drivers/net/nfp/nfp_net.c > +++ b/drivers/net/nfp/nfp_net.c > @@ -1412,7 +1412,7 @@ nfp_net_irq_unmask(struct rte_eth_dev *dev) > if (hw->ctrl & NFP_NET_CFG_CTRL_MSIXAUTO) { > /* If MSI-X auto-masking is used, clear the entry */ > rte_wmb(); > - rte_intr_enable(&pci_dev->intr_handle); > + rte_intr_unmask(&pci_dev->intr_handle); I mentioned this part earlier. The comment suggests the driver really needs to clear Mask bit in MSI-X Table, if MSI-X is used? rte_intr_unmask() + vfio-pci does not do that. The maintainers should say something.. [...] > diff --git a/drivers/net/qede/qede_ethdev.c > b/drivers/net/qede/qede_ethdev.c > index 82363e6..6648139 100644 > --- a/drivers/net/qede/qede_ethdev.c > +++ b/drivers/net/qede/qede_ethdev.c > @@ -248,8 +248,8 @@ qede_interrupt_handler_intx(void *param) > if (status & 0x1) { > qede_interrupt_action(ECORE_LEADING_HWFN(edev)); >=20 > - if (rte_intr_enable(eth_dev->intr_handle)) > - DP_ERR(edev, "rte_intr_enable failed\n"); > + if (rte_intr_unmask(eth_dev->intr_handle)) > + DP_ERR(edev, "rte_intr_unmask failed\n"); > } > } >=20 > @@ -261,8 +261,8 @@ qede_interrupt_handler(void *param) > struct ecore_dev *edev =3D &qdev->edev; >=20 > qede_interrupt_action(ECORE_LEADING_HWFN(edev)); > - if (rte_intr_enable(eth_dev->intr_handle)) > - DP_ERR(edev, "rte_intr_enable failed\n"); > + if (rte_intr_unmask(eth_dev->intr_handle)) > + DP_ERR(edev, "rte_intr_unmask failed\n"); > } I thought you were going to remove rte_intr_enable from this handler altogether. [...] Thanks. -Hyong