Date: Wed, 18 Mar 2020 22:43:39 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r359104 - head/sys/dev/mlx5/mlx5_core Message-ID: <202003182243.02IMhdiQ072033@repo.freebsd.org>
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Author: kib Date: Wed Mar 18 22:43:39 2020 New Revision: 359104 URL: https://svnweb.freebsd.org/changeset/base/359104 Log: mlx5: Read number of VF ports from the SR-IOV cap. Reviewed by: hselasky Sponsored by: Mellanox Technologies MFC after: 2 weeks Modified: head/sys/dev/mlx5/mlx5_core/eswitch.h head/sys/dev/mlx5/mlx5_core/mlx5_eswitch.c head/sys/dev/mlx5/mlx5_core/mlx5_main.c Modified: head/sys/dev/mlx5/mlx5_core/eswitch.h ============================================================================== --- head/sys/dev/mlx5/mlx5_core/eswitch.h Wed Mar 18 22:40:26 2020 (r359103) +++ head/sys/dev/mlx5/mlx5_core/eswitch.h Wed Mar 18 22:43:39 2020 (r359104) @@ -152,7 +152,7 @@ struct mlx5_esw_vport_info { }; /* E-Switch API */ -int mlx5_eswitch_init(struct mlx5_core_dev *dev); +int mlx5_eswitch_init(struct mlx5_core_dev *dev, int total_vports); void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw); void mlx5_eswitch_vport_event(struct mlx5_eswitch *esw, struct mlx5_eqe *eqe); int mlx5_eswitch_enable_sriov(struct mlx5_eswitch *esw, int nvfs); Modified: head/sys/dev/mlx5/mlx5_core/mlx5_eswitch.c ============================================================================== --- head/sys/dev/mlx5/mlx5_core/mlx5_eswitch.c Wed Mar 18 22:40:26 2020 (r359103) +++ head/sys/dev/mlx5/mlx5_core/mlx5_eswitch.c Wed Mar 18 22:43:39 2020 (r359104) @@ -1081,10 +1081,9 @@ void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *e esw_enable_vport(esw, 0, UC_ADDR_CHANGE); } -int mlx5_eswitch_init(struct mlx5_core_dev *dev) +int mlx5_eswitch_init(struct mlx5_core_dev *dev, int total_vports) { int l2_table_size = 1 << MLX5_CAP_GEN(dev, log_max_l2_table); - int total_vports = 1; struct mlx5_eswitch *esw; int vport_num; int err; Modified: head/sys/dev/mlx5/mlx5_core/mlx5_main.c ============================================================================== --- head/sys/dev/mlx5/mlx5_core/mlx5_main.c Wed Mar 18 22:40:26 2020 (r359103) +++ head/sys/dev/mlx5/mlx5_core/mlx5_main.c Wed Mar 18 22:43:39 2020 (r359104) @@ -1317,6 +1317,7 @@ static int init_one(struct pci_dev *pdev, device_t bsddev = pdev->dev.bsddev; #ifdef PCI_IOV nvlist_t *pf_schema, *vf_schema; + int num_vfs, sriov_pos; #endif int i,err; struct sysctl_oid *pme_sysctl_node; @@ -1603,7 +1604,14 @@ static int init_one(struct pci_dev *pdev, #ifdef PCI_IOV if (MLX5_CAP_GEN(dev, vport_group_manager)) { - err = mlx5_eswitch_init(dev); + if (pci_find_extcap(bsddev, PCIZ_SRIOV, &sriov_pos) == 0) { + num_vfs = pci_read_config(bsddev, sriov_pos + + PCIR_SRIOV_TOTAL_VFS, 2); + } else { + mlx5_core_err(dev, "cannot find SR-IOV PCIe cap\n"); + num_vfs = 0; + } + err = mlx5_eswitch_init(dev, 1 + num_vfs); if (err == 0) { pf_schema = pci_iov_schema_alloc_node(); vf_schema = pci_iov_schema_alloc_node(); @@ -1780,6 +1788,10 @@ mlx5_iov_init(device_t dev, uint16_t num_vfs, const nv core_dev = pci_get_drvdata(pdev); priv = &core_dev->priv; + if (priv->eswitch == NULL) + return (ENXIO); + if (priv->eswitch->total_vports < num_vfs + 1) + num_vfs = priv->eswitch->total_vports - 1; err = mlx5_eswitch_enable_sriov(priv->eswitch, num_vfs); return (-err); } @@ -1811,6 +1823,9 @@ mlx5_iov_add_vf(device_t dev, uint16_t vfnum, const nv pdev = device_get_softc(dev); core_dev = pci_get_drvdata(pdev); priv = &core_dev->priv; + + if (vfnum + 1 >= priv->eswitch->total_vports) + return (ENXIO); if (nvlist_exists_binary(vf_config, iov_mac_addr_name)) { mac = nvlist_get_binary(vf_config, iov_mac_addr_name,
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