diff --git a/drivers/net/ethernet/intel/Kconfig b/drivers/net/ethernet/intel/Kconfig index ed8ea63bb172..0b274d8fa45b 100644 --- a/drivers/net/ethernet/intel/Kconfig +++ b/drivers/net/ethernet/intel/Kconfig @@ -313,6 +313,20 @@ config ICE To compile this driver as a module, choose M here. The module will be called ice. +config ICE_SWITCHDEV + bool "Switchdev Support" + default y + depends on ICE && NET_SWITCHDEV + help + Switchdev support provides internal SRIOV packet steering and switching. + + To enable it on running kernel use devlink tool: + #devlink dev eswitch set pci/0000:XX:XX.X mode switchdev + + Say Y here if you want to use Switchdev in the driver. + + If unsure, say N. + config FM10K tristate "Intel(R) FM10000 Ethernet Switch Host Interface Support" default n diff --git a/drivers/net/ethernet/intel/ice/Makefile b/drivers/net/ethernet/intel/ice/Makefile index 4f538cdf42c1..0545594c80ba 100644 --- a/drivers/net/ethernet/intel/ice/Makefile +++ b/drivers/net/ethernet/intel/ice/Makefile @@ -33,3 +33,4 @@ ice-$(CONFIG_PTP_1588_CLOCK) += ice_ptp.o ice_ptp_hw.o ice-$(CONFIG_DCB) += ice_dcb.o ice_dcb_nl.o ice_dcb_lib.o ice-$(CONFIG_RFS_ACCEL) += ice_arfs.o ice-$(CONFIG_XDP_SOCKETS) += ice_xsk.o +ice-$(CONFIG_ICE_SWITCHDEV) += ice_eswitch.o diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h index 83413772b00c..1657f0cf10b1 100644 --- a/drivers/net/ethernet/intel/ice/ice.h +++ b/drivers/net/ethernet/intel/ice/ice.h @@ -439,6 +439,7 @@ struct ice_pf { struct ice_vsi **vsi; /* VSIs created by the driver */ struct ice_sw *first_sw; /* first switch created by firmware */ + u16 eswitch_mode; /* current mode of eswitch */ /* Virtchnl/SR-IOV config info */ struct ice_vf *vf; u16 num_alloc_vfs; /* actual number of VFs allocated */ diff --git a/drivers/net/ethernet/intel/ice/ice_devlink.c b/drivers/net/ethernet/intel/ice/ice_devlink.c index cae1cd97a1ef..69c9c165f987 100644 --- a/drivers/net/ethernet/intel/ice/ice_devlink.c +++ b/drivers/net/ethernet/intel/ice/ice_devlink.c @@ -4,6 +4,7 @@ #include "ice.h" #include "ice_lib.h" #include "ice_devlink.h" +#include "ice_eswitch.h" #include "ice_fw_update.h" /* context for devlink info version reporting */ @@ -423,6 +424,8 @@ ice_devlink_flash_update(struct devlink *devlink, static const struct devlink_ops ice_devlink_ops = { .supported_flash_update_params = DEVLINK_SUPPORT_FLASH_UPDATE_OVERWRITE_MASK, + .eswitch_mode_get = ice_eswitch_mode_get, + .eswitch_mode_set = ice_eswitch_mode_set, .info_get = ice_devlink_info_get, .flash_update = ice_devlink_flash_update, }; diff --git a/drivers/net/ethernet/intel/ice/ice_eswitch.c b/drivers/net/ethernet/intel/ice/ice_eswitch.c new file mode 100644 index 000000000000..1370c41b77ab --- /dev/null +++ b/drivers/net/ethernet/intel/ice/ice_eswitch.c @@ -0,0 +1,62 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (C) 2019-2021, Intel Corporation. */ + +#include "ice.h" +#include "ice_eswitch.h" +#include "ice_devlink.h" + +/** + * ice_eswitch_mode_set - set new eswitch mode + * @devlink: pointer to devlink structure + * @mode: eswitch mode to switch to + * @extack: pointer to extack structure + */ +int +ice_eswitch_mode_set(struct devlink *devlink, u16 mode, + struct netlink_ext_ack *extack) +{ + struct ice_pf *pf = devlink_priv(devlink); + + if (pf->eswitch_mode == mode) + return 0; + + if (pf->num_alloc_vfs) { + dev_info(ice_pf_to_dev(pf), "Changing eswitch mode is allowed only if there is no VFs created"); + NL_SET_ERR_MSG_MOD(extack, "Changing eswitch mode is allowed only if there is no VFs created"); + return -EOPNOTSUPP; + } + + switch (mode) { + case DEVLINK_ESWITCH_MODE_LEGACY: + dev_info(ice_pf_to_dev(pf), "PF %d changed eswitch mode to legacy", + pf->hw.pf_id); + NL_SET_ERR_MSG_MOD(extack, "Changed eswitch mode to legacy"); + break; + case DEVLINK_ESWITCH_MODE_SWITCHDEV: + { + dev_info(ice_pf_to_dev(pf), "PF %d changed eswitch mode to switchdev", + pf->hw.pf_id); + NL_SET_ERR_MSG_MOD(extack, "Changed eswitch mode to switchdev"); + break; + } + default: + NL_SET_ERR_MSG_MOD(extack, "Unknown eswitch mode"); + return -EINVAL; + } + + pf->eswitch_mode = mode; + return 0; +} + +/** + * ice_eswitch_mode_get - get current eswitch mode + * @devlink: pointer to devlink structure + * @mode: output parameter for current eswitch mode + */ +int ice_eswitch_mode_get(struct devlink *devlink, u16 *mode) +{ + struct ice_pf *pf = devlink_priv(devlink); + + *mode = pf->eswitch_mode; + return 0; +} diff --git a/drivers/net/ethernet/intel/ice/ice_eswitch.h b/drivers/net/ethernet/intel/ice/ice_eswitch.h new file mode 100644 index 000000000000..1964b060562a --- /dev/null +++ b/drivers/net/ethernet/intel/ice/ice_eswitch.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2019-2021, Intel Corporation. */ + +#ifndef _ICE_ESWITCH_H_ +#define _ICE_ESWITCH_H_ + +#include + +#ifdef CONFIG_ICE_SWITCHDEV +int ice_eswitch_mode_get(struct devlink *devlink, u16 *mode); +int +ice_eswitch_mode_set(struct devlink *devlink, u16 mode, + struct netlink_ext_ack *extack); +bool ice_is_eswitch_mode_switchdev(struct ice_pf *pf); +#else /* CONFIG_ICE_SWITCHDEV */ +static inline int +ice_eswitch_mode_get(struct devlink *devlink, u16 *mode) +{ + return DEVLINK_ESWITCH_MODE_LEGACY; +} + +static inline int +ice_eswitch_mode_set(struct devlink *devlink, u16 mode, + struct netlink_ext_ack *extack) +{ + return -EOPNOTSUPP; +} + +static inline bool +ice_is_eswitch_mode_switchdev(struct ice_pf *pf) +{ + return false; +} +#endif /* CONFIG_ICE_SWITCHDEV */ +#endif /* _ICE_ESWITCH_H_ */