diff options
| -rw-r--r-- | drivers/vdpa/pds/debugfs.c | 2 | ||||
| -rw-r--r-- | drivers/vdpa/pds/vdpa_dev.c | 30 | ||||
| -rw-r--r-- | drivers/vdpa/pds/vdpa_dev.h | 4 |
3 files changed, 23 insertions, 13 deletions
diff --git a/drivers/vdpa/pds/debugfs.c b/drivers/vdpa/pds/debugfs.c index 21a0dc0cb607..754ccb7a6666 100644 --- a/drivers/vdpa/pds/debugfs.c +++ b/drivers/vdpa/pds/debugfs.c @@ -224,8 +224,6 @@ static int config_show(struct seq_file *seq, void *v) seq_printf(seq, "dev_status: %#x\n", status); print_status_bits(seq, status); - seq_printf(seq, "req_features: %#llx\n", pdsv->req_features); - print_feature_bits_all(seq, pdsv->req_features); driver_features = vp_modern_get_driver_features(&pdsv->vdpa_aux->vd_mdev); seq_printf(seq, "driver_features: %#llx\n", driver_features); print_feature_bits_all(seq, driver_features); diff --git a/drivers/vdpa/pds/vdpa_dev.c b/drivers/vdpa/pds/vdpa_dev.c index e2e99bb0be2b..5b566e0eef0a 100644 --- a/drivers/vdpa/pds/vdpa_dev.c +++ b/drivers/vdpa/pds/vdpa_dev.c @@ -318,6 +318,7 @@ static int pds_vdpa_set_driver_features(struct vdpa_device *vdpa_dev, u64 featur struct device *dev = &pdsv->vdpa_dev.dev; u64 driver_features; u64 nego_features; + u64 hw_features; u64 missing; if (!(features & BIT_ULL(VIRTIO_F_ACCESS_PLATFORM)) && features) { @@ -325,21 +326,26 @@ static int pds_vdpa_set_driver_features(struct vdpa_device *vdpa_dev, u64 featur return -EOPNOTSUPP; } - pdsv->req_features = features; - /* Check for valid feature bits */ - nego_features = features & le64_to_cpu(pdsv->vdpa_aux->ident.hw_features); - missing = pdsv->req_features & ~nego_features; + nego_features = features & pdsv->supported_features; + missing = features & ~nego_features; if (missing) { dev_err(dev, "Can't support all requested features in %#llx, missing %#llx features\n", - pdsv->req_features, missing); + features, missing); return -EOPNOTSUPP; } + pdsv->negotiated_features = nego_features; + driver_features = pds_vdpa_get_driver_features(vdpa_dev); dev_dbg(dev, "%s: %#llx => %#llx\n", __func__, driver_features, nego_features); + /* if we're faking the F_MAC, strip it before writing to device */ + hw_features = le64_to_cpu(pdsv->vdpa_aux->ident.hw_features); + if (!(hw_features & BIT_ULL(VIRTIO_NET_F_MAC))) + nego_features &= ~BIT_ULL(VIRTIO_NET_F_MAC); + if (driver_features == nego_features) return 0; @@ -352,7 +358,7 @@ static u64 pds_vdpa_get_driver_features(struct vdpa_device *vdpa_dev) { struct pds_vdpa_device *pdsv = vdpa_to_pdsv(vdpa_dev); - return vp_modern_get_driver_features(&pdsv->vdpa_aux->vd_mdev); + return pdsv->negotiated_features; } static void pds_vdpa_set_config_cb(struct vdpa_device *vdpa_dev, @@ -564,7 +570,7 @@ static int pds_vdpa_dev_add(struct vdpa_mgmt_dev *mdev, const char *name, if (add_config->mask & BIT_ULL(VDPA_ATTR_DEV_FEATURES)) { u64 unsupp_features = - add_config->device_features & ~mgmt->supported_features; + add_config->device_features & ~pdsv->supported_features; if (unsupp_features) { dev_err(dev, "Unsupported features: %#llx\n", unsupp_features); @@ -615,7 +621,8 @@ static int pds_vdpa_dev_add(struct vdpa_mgmt_dev *mdev, const char *name, } /* Set a mac, either from the user config if provided - * or set a random mac if default is 00:..:00 + * or use the device's mac if not 00:..:00 + * or set a random mac */ if (add_config->mask & BIT_ULL(VDPA_ATTR_DEV_NET_CFG_MACADDR)) { ether_addr_copy(pdsv->mac, add_config->net.mac); @@ -624,7 +631,8 @@ static int pds_vdpa_dev_add(struct vdpa_mgmt_dev *mdev, const char *name, vc = pdsv->vdpa_aux->vd_mdev.device; memcpy_fromio(pdsv->mac, vc->mac, sizeof(pdsv->mac)); - if (is_zero_ether_addr(pdsv->mac)) { + if (is_zero_ether_addr(pdsv->mac) && + (pdsv->supported_features & BIT_ULL(VIRTIO_NET_F_MAC))) { eth_random_addr(pdsv->mac); dev_info(dev, "setting random mac %pM\n", pdsv->mac); } @@ -752,6 +760,10 @@ int pds_vdpa_get_mgmt_info(struct pds_vdpa_aux *vdpa_aux) mgmt->id_table = pds_vdpa_id_table; mgmt->device = dev; mgmt->supported_features = le64_to_cpu(vdpa_aux->ident.hw_features); + + /* advertise F_MAC even if the device doesn't */ + mgmt->supported_features |= BIT_ULL(VIRTIO_NET_F_MAC); + mgmt->config_attr_mask = BIT_ULL(VDPA_ATTR_DEV_NET_CFG_MACADDR); mgmt->config_attr_mask |= BIT_ULL(VDPA_ATTR_DEV_NET_CFG_MAX_VQP); mgmt->config_attr_mask |= BIT_ULL(VDPA_ATTR_DEV_FEATURES); diff --git a/drivers/vdpa/pds/vdpa_dev.h b/drivers/vdpa/pds/vdpa_dev.h index cf02df287fc4..d984ba24a7da 100644 --- a/drivers/vdpa/pds/vdpa_dev.h +++ b/drivers/vdpa/pds/vdpa_dev.h @@ -35,8 +35,8 @@ struct pds_vdpa_device { struct pds_vdpa_aux *vdpa_aux; struct pds_vdpa_vq_info vqs[PDS_VDPA_MAX_QUEUES]; - u64 supported_features; /* specified device features */ - u64 req_features; /* features requested by vdpa */ + u64 supported_features; /* supported device features */ + u64 negotiated_features; /* negotiated features */ u8 vdpa_index; /* rsvd for future subdevice use */ u8 num_vqs; /* num vqs in use */ u8 mac[ETH_ALEN]; /* mac selected when the device was added */ |