mlx5: Basic PCIe side of SR-IOV support.
Reviewed by: hselasky Sponsored by: Mellanox Technologies MFC after: 2 weeks
This commit is contained in:
Konstantin Belousov
parent
b323455767
commit
9dfa078252
@ -45,6 +45,11 @@
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#include <dev/mlx5/mlx5_lib/mlx5.h>
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#include "mlx5_core.h"
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#include "fs_core.h"
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#ifdef PCI_IOV
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#include <sys/nv.h>
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#include <dev/pci/pci_iov.h>
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#include <sys/iov_schema.h>
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#endif
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static const char mlx5_version[] = "Mellanox Core driver "
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DRIVER_VERSION " (" DRIVER_RELDATE ")";
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@ -513,12 +518,13 @@ static int set_hca_ctrl(struct mlx5_core_dev *dev)
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return err;
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}
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static int mlx5_core_enable_hca(struct mlx5_core_dev *dev)
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static int mlx5_core_enable_hca(struct mlx5_core_dev *dev, u16 func_id)
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{
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u32 out[MLX5_ST_SZ_DW(enable_hca_out)] = {0};
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u32 in[MLX5_ST_SZ_DW(enable_hca_in)] = {0};
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MLX5_SET(enable_hca_in, in, opcode, MLX5_CMD_OP_ENABLE_HCA);
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MLX5_SET(enable_hca_in, in, function_id, func_id);
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return mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out));
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}
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@ -853,8 +859,11 @@ mlx5_firmware_update(struct mlx5_core_dev *dev)
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static int mlx5_pci_init(struct mlx5_core_dev *dev, struct mlx5_priv *priv)
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{
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struct pci_dev *pdev = dev->pdev;
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int err = 0;
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device_t bsddev;
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int err;
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pdev = dev->pdev;
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bsddev = pdev->dev.bsddev;
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pci_set_drvdata(dev->pdev, dev);
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strncpy(priv->name, dev_name(&pdev->dev), MLX5_MAX_NAME_LEN);
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priv->name[MLX5_MAX_NAME_LEN - 1] = 0;
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@ -905,6 +914,10 @@ static int mlx5_pci_init(struct mlx5_core_dev *dev, struct mlx5_priv *priv)
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static void mlx5_pci_close(struct mlx5_core_dev *dev, struct mlx5_priv *priv)
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{
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#ifdef PCI_IOV
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if (MLX5_CAP_GEN(dev, eswitch_flow_table))
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pci_iov_detach(dev->pdev->dev.bsddev);
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#endif
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iounmap(dev->iseg);
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release_bar(dev->pdev);
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mlx5_pci_disable_device(dev);
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@ -1035,7 +1048,7 @@ static int mlx5_load_one(struct mlx5_core_dev *dev, struct mlx5_priv *priv,
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goto err_cmd_cleanup;
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}
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err = mlx5_core_enable_hca(dev);
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err = mlx5_core_enable_hca(dev, 0);
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if (err) {
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mlx5_core_err(dev, "enable hca failed\n");
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goto err_cmd_cleanup;
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@ -1295,6 +1308,9 @@ static int init_one(struct pci_dev *pdev,
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struct mlx5_core_dev *dev;
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struct mlx5_priv *priv;
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device_t bsddev = pdev->dev.bsddev;
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#ifdef PCI_IOV
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nvlist_t *pf_schema, *vf_schema;
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#endif
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int i,err;
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struct sysctl_oid *pme_sysctl_node;
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struct sysctl_oid *pme_err_sysctl_node;
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@ -1578,6 +1594,19 @@ static int init_one(struct pci_dev *pdev,
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mlx5_firmware_update(dev);
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#ifdef PCI_IOV
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if (MLX5_CAP_GEN(dev, vport_group_manager)) {
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pf_schema = pci_iov_schema_alloc_node();
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vf_schema = pci_iov_schema_alloc_node();
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err = pci_iov_attach(bsddev, pf_schema, vf_schema);
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if (err != 0) {
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device_printf(bsddev,
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"Failed to initialize SR-IOV support, error %d\n",
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err);
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}
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}
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#endif
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pci_save_state(bsddev);
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return 0;
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@ -1723,6 +1752,54 @@ static const struct pci_error_handlers mlx5_err_handler = {
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.resume = mlx5_pci_resume
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};
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#ifdef PCI_IOV
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static int
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mlx5_iov_init(device_t dev, uint16_t num_vfs, const nvlist_t *pf_config)
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{
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struct pci_dev *pdev;
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struct mlx5_core_dev *core_dev;
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struct mlx5_priv *priv;
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pdev = device_get_softc(dev);
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core_dev = pci_get_drvdata(pdev);
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priv = &core_dev->priv;
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return (0);
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}
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static void
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mlx5_iov_uninit(device_t dev)
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{
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struct pci_dev *pdev;
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struct mlx5_core_dev *core_dev;
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struct mlx5_priv *priv;
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pdev = device_get_softc(dev);
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core_dev = pci_get_drvdata(pdev);
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priv = &core_dev->priv;
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}
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static int
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mlx5_iov_add_vf(device_t dev, uint16_t vfnum, const nvlist_t *vf_config)
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{
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struct pci_dev *pdev;
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struct mlx5_core_dev *core_dev;
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struct mlx5_priv *priv;
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int error;
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pdev = device_get_softc(dev);
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core_dev = pci_get_drvdata(pdev);
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priv = &core_dev->priv;
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error = -mlx5_core_enable_hca(core_dev, vfnum + 1);
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if (error != 0) {
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mlx5_core_err(core_dev, "enabling VF %d failed, error %d\n",
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vfnum, error);
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}
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return (error);
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}
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#endif
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static int mlx5_try_fast_unload(struct mlx5_core_dev *dev)
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{
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bool fast_teardown, force_teardown;
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@ -1857,7 +1934,12 @@ struct pci_driver mlx5_core_driver = {
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.shutdown = shutdown_one,
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.probe = init_one,
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.remove = remove_one,
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.err_handler = &mlx5_err_handler
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.err_handler = &mlx5_err_handler,
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#ifdef PCI_IOV
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.bsd_iov_init = mlx5_iov_init,
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.bsd_iov_uninit = mlx5_iov_uninit,
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.bsd_iov_add_vf = mlx5_iov_add_vf,
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#endif
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};
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static int __init init(void)
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