a29a912d44
Validate the inputs for SW DCB config received either via lldptool or pcap file. And don't apply DCB for bad bandwidth inputs. Without this patch, any config having bad inputs will cause the loss of link making PF unusable even after driver reload. Recoverable only via system reboot. Signed-off-by: Avinash Dayanand <avinash.dayanand@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
89 lines
2.6 KiB
C
89 lines
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright (c) 2019, Intel Corporation. */
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#ifndef _ICE_DCB_LIB_H_
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#define _ICE_DCB_LIB_H_
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#include "ice.h"
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#include "ice_base.h"
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#include "ice_lib.h"
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#ifdef CONFIG_DCB
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#define ICE_TC_MAX_BW 100 /* Default Max BW percentage */
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#define ICE_DCB_HW_CHG_RST 0 /* DCB configuration changed with reset */
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#define ICE_DCB_NO_HW_CHG 1 /* DCB configuration did not change */
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#define ICE_DCB_HW_CHG 2 /* DCB configuration changed, no reset */
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void ice_dcb_rebuild(struct ice_pf *pf);
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u8 ice_dcb_get_ena_tc(struct ice_dcbx_cfg *dcbcfg);
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u8 ice_dcb_get_num_tc(struct ice_dcbx_cfg *dcbcfg);
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u8 ice_dcb_get_tc(struct ice_vsi *vsi, int queue_index);
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int
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ice_pf_dcb_cfg(struct ice_pf *pf, struct ice_dcbx_cfg *new_cfg, bool locked);
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int ice_dcb_bwchk(struct ice_pf *pf, struct ice_dcbx_cfg *dcbcfg);
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void ice_pf_dcb_recfg(struct ice_pf *pf);
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void ice_vsi_cfg_dcb_rings(struct ice_vsi *vsi);
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int ice_init_pf_dcb(struct ice_pf *pf, bool locked);
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void ice_update_dcb_stats(struct ice_pf *pf);
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int
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ice_tx_prepare_vlan_flags_dcb(struct ice_ring *tx_ring,
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struct ice_tx_buf *first);
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void
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ice_dcb_process_lldp_set_mib_change(struct ice_pf *pf,
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struct ice_rq_event_info *event);
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void ice_vsi_cfg_netdev_tc(struct ice_vsi *vsi, u8 ena_tc);
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static inline void
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ice_set_cgd_num(struct ice_tlan_ctx *tlan_ctx, struct ice_ring *ring)
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{
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tlan_ctx->cgd_num = ring->dcb_tc;
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}
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#else
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#define ice_dcb_rebuild(pf) do {} while (0)
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static inline u8 ice_dcb_get_ena_tc(struct ice_dcbx_cfg __always_unused *dcbcfg)
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{
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return ICE_DFLT_TRAFFIC_CLASS;
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}
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static inline u8 ice_dcb_get_num_tc(struct ice_dcbx_cfg __always_unused *dcbcfg)
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{
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return 1;
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}
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static inline u8
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ice_dcb_get_tc(struct ice_vsi __always_unused *vsi,
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int __always_unused queue_index)
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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_init_pf_dcb(struct ice_pf *pf, bool __always_unused locked)
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{
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dev_dbg(ice_pf_to_dev(pf), "DCB not supported\n");
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return -EOPNOTSUPP;
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}
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static inline int
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ice_pf_dcb_cfg(struct ice_pf __always_unused *pf,
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struct ice_dcbx_cfg __always_unused *new_cfg,
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bool __always_unused locked)
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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_tx_prepare_vlan_flags_dcb(struct ice_ring __always_unused *tx_ring,
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struct ice_tx_buf __always_unused *first)
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{
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return 0;
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}
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#define ice_update_dcb_stats(pf) do {} while (0)
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#define ice_pf_dcb_recfg(pf) do {} while (0)
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#define ice_vsi_cfg_dcb_rings(vsi) do {} while (0)
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#define ice_dcb_process_lldp_set_mib_change(pf, event) do {} while (0)
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#define ice_set_cgd_num(tlan_ctx, ring) do {} while (0)
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#define ice_vsi_cfg_netdev_tc(vsi, ena_tc) do {} while (0)
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#endif /* CONFIG_DCB */
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#endif /* _ICE_DCB_LIB_H_ */
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