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a6a0974aae
The PF controls the set of queues that the RDMA auxiliary_driver requests
resources from. The set_channel command will alter that pool and trigger a
reconfiguration of the VSI, which breaks RDMA functionality.
Prevent set_channel from executing when RDMA driver bound to auxiliary
device.
Adding a locked variable to pass down the call chain to avoid double
locking the device_lock.
Fixes: 348048e724 ("ice: Implement iidc operations")
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
138 lines
3.8 KiB
C
138 lines
3.8 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_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, bool locked);
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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_tx_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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/**
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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, u8 dcb_tc)
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{
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tlan_ctx->cgd_num = 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 void ice_vsi_set_dcb_tc_cfg(struct ice_vsi *vsi)
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{
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vsi->tc_cfg.ena_tc = ICE_DFLT_TRAFFIC_CLASS;
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vsi->tc_cfg.numtc = 1;
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}
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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_tx_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, bool locked) { }
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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_set_cgd_num(struct ice_tlan_ctx *tlan_ctx, u8 dcb_tc) { }
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#endif /* CONFIG_DCB */
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#endif /* _ICE_DCB_LIB_H_ */
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