2a87bd73e5
Implement code to handle submission of APP TLV's containing DSCP to TC mapping. The first such mapping received on an interface will cause that PF to switch to L3 DSCP QoS mode, apply the default config for that mode, and apply the received mapping. Only one such mapping will be allowed per DSCP value, and when the last DSCP mapping is deleted, the PF will switch back into L2 VLAN QoS mode, applying the appropriate default QoS settings. L3 DSCP QoS mode will only be allowed in SW DCBx mode, in other words, when the FW LLDP engine is disabled. Commands that break this mutual exclusivity will be blocked. Co-developed-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Signed-off-by: Dave Ertman <david.m.ertman@intel.com> Tested-by: Gurucharan G <gurucharanx.g@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
137 lines
3.9 KiB
C
137 lines
3.9 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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int ice_dcb_sw_dflt_cfg(struct ice_pf *pf, bool ets_willing, bool locked);
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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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void ice_vsi_set_dcb_tc_cfg(struct ice_vsi *vsi);
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bool ice_is_pfc_causing_hung_q(struct ice_pf *pf, unsigned int txqueue);
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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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void
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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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/**
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* ice_find_q_in_range
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* @low: start of queue range for a TC i.e. offset of TC
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* @high: start of queue for next TC
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* @tx_q: hung_queue/tx_queue
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*
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* finds if queue 'tx_q' falls between the two offsets of any given TC
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*/
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static inline bool ice_find_q_in_range(u16 low, u16 high, unsigned int tx_q)
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{
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return (tx_q >= low) && (tx_q < high);
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}
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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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static inline bool ice_is_dcb_active(struct ice_pf *pf)
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{
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return (test_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags) ||
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test_bit(ICE_FLAG_DCB_ENA, pf->flags));
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}
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static inline u8 ice_get_pfc_mode(struct ice_pf *pf)
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{
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return pf->hw.port_info->qos_cfg.local_dcbx_cfg.pfc_mode;
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}
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#else
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static inline void ice_dcb_rebuild(struct ice_pf *pf) { }
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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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static inline bool ice_is_dcb_active(struct ice_pf __always_unused *pf)
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{
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return false;
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}
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static inline bool
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ice_is_pfc_causing_hung_q(struct ice_pf __always_unused *pf,
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unsigned int __always_unused txqueue)
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{
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return false;
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}
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static inline u8 ice_get_pfc_mode(struct ice_pf *pf)
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{
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return 0;
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}
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static inline void ice_pf_dcb_recfg(struct ice_pf *pf) { }
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static inline void ice_vsi_cfg_dcb_rings(struct ice_vsi *vsi) { }
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static inline void ice_update_dcb_stats(struct ice_pf *pf) { }
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static inline void
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ice_dcb_process_lldp_set_mib_change(struct ice_pf *pf, struct ice_rq_event_info *event) { }
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static inline void ice_vsi_cfg_netdev_tc(struct ice_vsi *vsi, u8 ena_tc) { }
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static inline void ice_set_cgd_num(struct ice_tlan_ctx *tlan_ctx, struct ice_ring *ring) { }
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#endif /* CONFIG_DCB */
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#endif /* _ICE_DCB_LIB_H_ */
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