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Tue, 25 Apr 2023 16:26:22 -0500 To: , , , , , Subject: [PATCH v4 virtio 06/10] pds_vdpa: virtio bar setup for vdpa Date: Tue, 25 Apr 2023 14:25:58 -0700 Message-ID: <20230425212602.1157-7-shannon.nelson@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230425212602.1157-1-shannon.nelson@amd.com> References: <20230425212602.1157-1-shannon.nelson@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6NAM11FT090:EE_|SJ0PR12MB5440:EE_ X-MS-Office365-Filtering-Correlation-Id: c8cd6442-6586-4582-a7e2-08db45d3b83c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" Prep and use the "modern" virtio bar utilities to get our virtio config space ready. Signed-off-by: Shannon Nelson --- drivers/vdpa/pds/aux_drv.c | 25 +++++++++++++++++++++++++ drivers/vdpa/pds/aux_drv.h | 3 +++ 2 files changed, 28 insertions(+) diff --git a/drivers/vdpa/pds/aux_drv.c b/drivers/vdpa/pds/aux_drv.c index aa748cf55d2b..0c4a135b1484 100644 --- a/drivers/vdpa/pds/aux_drv.c +++ b/drivers/vdpa/pds/aux_drv.c @@ -4,6 +4,7 @@ #include #include #include +#include #include #include @@ -19,12 +20,22 @@ static const struct auxiliary_device_id pds_vdpa_id_table[] = { {}, }; +static int pds_vdpa_device_id_check(struct pci_dev *pdev) +{ + if (pdev->device != PCI_DEVICE_ID_PENSANDO_VDPA_VF || + pdev->vendor != PCI_VENDOR_ID_PENSANDO) + return -ENODEV; + + return PCI_DEVICE_ID_PENSANDO_VDPA_VF; +} + static int pds_vdpa_probe(struct auxiliary_device *aux_dev, const struct auxiliary_device_id *id) { struct pds_auxiliary_dev *padev = container_of(aux_dev, struct pds_auxiliary_dev, aux_dev); + struct device *dev = &aux_dev->dev; struct pds_vdpa_aux *vdpa_aux; int err; @@ -41,8 +52,21 @@ static int pds_vdpa_probe(struct auxiliary_device *aux_dev, if (err) goto err_free_mem; + /* Find the virtio configuration */ + vdpa_aux->vd_mdev.pci_dev = padev->vf_pdev; + vdpa_aux->vd_mdev.device_id_check = pds_vdpa_device_id_check; + vdpa_aux->vd_mdev.dma_mask = DMA_BIT_MASK(PDS_CORE_ADDR_LEN); + err = vp_modern_probe(&vdpa_aux->vd_mdev); + if (err) { + dev_err(dev, "Unable to probe for virtio configuration: %pe\n", + ERR_PTR(err)); + goto err_free_mgmt_info; + } + return 0; +err_free_mgmt_info: + pci_free_irq_vectors(padev->vf_pdev); err_free_mem: kfree(vdpa_aux); auxiliary_set_drvdata(aux_dev, NULL); @@ -55,6 +79,7 @@ static void pds_vdpa_remove(struct auxiliary_device *aux_dev) struct pds_vdpa_aux *vdpa_aux = auxiliary_get_drvdata(aux_dev); struct device *dev = &aux_dev->dev; + vp_modern_remove(&vdpa_aux->vd_mdev); pci_free_irq_vectors(vdpa_aux->padev->vf_pdev); kfree(vdpa_aux); diff --git a/drivers/vdpa/pds/aux_drv.h b/drivers/vdpa/pds/aux_drv.h index dcec782e79eb..99e0ff340bfa 100644 --- a/drivers/vdpa/pds/aux_drv.h +++ b/drivers/vdpa/pds/aux_drv.h @@ -4,6 +4,8 @@ #ifndef _AUX_DRV_H_ #define _AUX_DRV_H_ +#include + #define PDS_VDPA_DRV_DESCRIPTION "AMD/Pensando vDPA VF Device Driver" #define PDS_VDPA_DRV_NAME KBUILD_MODNAME @@ -16,6 +18,7 @@ struct pds_vdpa_aux { int vf_id; struct dentry *dentry; + struct virtio_pci_modern_device vd_mdev; int nintrs; }; -- 2.17.1 _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization