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cc2a9d6c03
In cases when VF sends malformed packets that are classified as malicious, it can cause Tx queue to freeze as a result of Malicious Driver Detection event. Such malformed packets can appear as a result of a faulty userspace app running on VF. This frozen queue can be stuck for several minutes being unusable. User might prefer to immediately bring the VF back to operational state after such event, which can be done by automatically resetting the VF which caused MDD. This is already implemented for Rx events (mdd-auto-reset-vf flag private flag needs to be set). Extend the VF auto reset to also cover Tx MDD events. When any MDD event occurs on VF (Tx or Rx) and the mdd-auto-reset-vf private flag is set, perform a graceful VF reset to quickly bring it back to operational state. Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Co-developed-by: Liang-Min Wang <liang-min.wang@intel.com> Signed-off-by: Liang-Min Wang <liang-min.wang@intel.com> Signed-off-by: Marcin Szycik <marcin.szycik@linux.intel.com> Reviewed-by: Simon Horman <horms@kernel.org> Tested-by: Rafal Romanowski <rafal.romanowski@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
160 lines
4.6 KiB
C
160 lines
4.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright (c) 2018, Intel Corporation. */
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#ifndef _ICE_SRIOV_H_
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#define _ICE_SRIOV_H_
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#include "ice_virtchnl_fdir.h"
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#include "ice_vf_lib.h"
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#include "ice_virtchnl.h"
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/* Static VF transaction/status register def */
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#define VF_DEVICE_STATUS 0xAA
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#define VF_TRANS_PENDING_M 0x20
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/* wait defines for polling PF_PCI_CIAD register status */
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#define ICE_PCI_CIAD_WAIT_COUNT 100
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#define ICE_PCI_CIAD_WAIT_DELAY_US 1
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/* VF resource constraints */
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#define ICE_MIN_QS_PER_VF 1
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#define ICE_NONQ_VECS_VF 1
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#define ICE_NUM_VF_MSIX_MED 17
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#define ICE_NUM_VF_MSIX_SMALL 5
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#define ICE_NUM_VF_MSIX_MULTIQ_MIN 3
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#define ICE_MIN_INTR_PER_VF (ICE_MIN_QS_PER_VF + 1)
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#define ICE_MAX_VF_RESET_TRIES 40
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#define ICE_MAX_VF_RESET_SLEEP_MS 20
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#ifdef CONFIG_PCI_IOV
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void ice_process_vflr_event(struct ice_pf *pf);
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int ice_sriov_configure(struct pci_dev *pdev, int num_vfs);
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int ice_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac);
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int
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ice_get_vf_cfg(struct net_device *netdev, int vf_id, struct ifla_vf_info *ivi);
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void ice_free_vfs(struct ice_pf *pf);
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void ice_restore_all_vfs_msi_state(struct ice_pf *pf);
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int
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ice_set_vf_port_vlan(struct net_device *netdev, int vf_id, u16 vlan_id, u8 qos,
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__be16 vlan_proto);
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int
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ice_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
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int max_tx_rate);
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int ice_set_vf_trust(struct net_device *netdev, int vf_id, bool trusted);
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int ice_set_vf_link_state(struct net_device *netdev, int vf_id, int link_state);
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int ice_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool ena);
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void ice_calc_vf_reg_idx(struct ice_vf *vf, struct ice_q_vector *q_vector);
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int
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ice_get_vf_stats(struct net_device *netdev, int vf_id,
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struct ifla_vf_stats *vf_stats);
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void
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ice_vf_lan_overflow_event(struct ice_pf *pf, struct ice_rq_event_info *event);
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void ice_print_vfs_mdd_events(struct ice_pf *pf);
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void ice_print_vf_rx_mdd_event(struct ice_vf *vf);
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void ice_print_vf_tx_mdd_event(struct ice_vf *vf);
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bool
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ice_vc_validate_pattern(struct ice_vf *vf, struct virtchnl_proto_hdrs *proto);
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u32 ice_sriov_get_vf_total_msix(struct pci_dev *pdev);
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int ice_sriov_set_msix_vec_count(struct pci_dev *vf_dev, int msix_vec_count);
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#else /* CONFIG_PCI_IOV */
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static inline void ice_process_vflr_event(struct ice_pf *pf) { }
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static inline void ice_free_vfs(struct ice_pf *pf) { }
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static inline
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void ice_vf_lan_overflow_event(struct ice_pf *pf, struct ice_rq_event_info *event) { }
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static inline void ice_print_vfs_mdd_events(struct ice_pf *pf) { }
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static inline void ice_print_vf_rx_mdd_event(struct ice_vf *vf) { }
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static inline void ice_print_vf_tx_mdd_event(struct ice_vf *vf) { }
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static inline void ice_restore_all_vfs_msi_state(struct ice_pf *pf) { }
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static inline int
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ice_sriov_configure(struct pci_dev __always_unused *pdev,
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int __always_unused num_vfs)
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{
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return -EOPNOTSUPP;
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}
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static inline int
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ice_set_vf_mac(struct net_device __always_unused *netdev,
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int __always_unused vf_id, u8 __always_unused *mac)
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{
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return -EOPNOTSUPP;
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}
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static inline int
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ice_get_vf_cfg(struct net_device __always_unused *netdev,
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int __always_unused vf_id,
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struct ifla_vf_info __always_unused *ivi)
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{
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return -EOPNOTSUPP;
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}
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static inline int
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ice_set_vf_trust(struct net_device __always_unused *netdev,
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int __always_unused vf_id, bool __always_unused trusted)
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{
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return -EOPNOTSUPP;
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}
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static inline int
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ice_set_vf_port_vlan(struct net_device __always_unused *netdev,
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int __always_unused vf_id, u16 __always_unused vid,
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u8 __always_unused qos, __be16 __always_unused v_proto)
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{
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return -EOPNOTSUPP;
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}
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static inline int
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ice_set_vf_spoofchk(struct net_device __always_unused *netdev,
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int __always_unused vf_id, bool __always_unused ena)
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{
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return -EOPNOTSUPP;
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}
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static inline int
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ice_set_vf_link_state(struct net_device __always_unused *netdev,
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int __always_unused vf_id, int __always_unused link_state)
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{
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return -EOPNOTSUPP;
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}
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static inline int
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ice_set_vf_bw(struct net_device __always_unused *netdev,
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int __always_unused vf_id, int __always_unused min_tx_rate,
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int __always_unused max_tx_rate)
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{
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return -EOPNOTSUPP;
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}
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static inline void
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ice_calc_vf_reg_idx(struct ice_vf __always_unused *vf,
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struct ice_q_vector __always_unused *q_vector)
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{
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}
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static inline int
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ice_get_vf_stats(struct net_device __always_unused *netdev,
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int __always_unused vf_id,
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struct ifla_vf_stats __always_unused *vf_stats)
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{
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return -EOPNOTSUPP;
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}
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static inline u32 ice_sriov_get_vf_total_msix(struct pci_dev *pdev)
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{
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return 0;
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}
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static inline int
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ice_sriov_set_msix_vec_count(struct pci_dev *vf_dev, int msix_vec_count)
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{
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return -EOPNOTSUPP;
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}
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#endif /* CONFIG_PCI_IOV */
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#endif /* _ICE_SRIOV_H_ */
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