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e800654e85
Use struct ice_adapter to hold shared PTP data and control PTP related actions instead of auxbus. This allows significant code simplification and faster access to the container fields used in the PTP support code. Move the PTP port list to the ice_adapter container to simplify the code and avoid race conditions which could occur due to the synchronous nature of the initialization/access and certain memory saving can be achieved by moving PTP data into the ice_adapter itself. Signed-off-by: Sergey Temerkhanov <sergey.temerkhanov@intel.com> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Reviewed-by: Simon Horman <horms@kernel.org> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/* SPDX-FileCopyrightText: Copyright Red Hat */
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#ifndef _ICE_ADAPTER_H_
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#define _ICE_ADAPTER_H_
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#include <linux/types.h>
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#include <linux/spinlock_types.h>
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#include <linux/refcount_types.h>
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struct pci_dev;
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struct ice_pf;
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/**
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* struct ice_port_list - data used to store the list of adapter ports
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*
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* This structure contains data used to maintain a list of adapter ports
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*
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* @ports: list of ports
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* @lock: protect access to the ports list
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*/
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struct ice_port_list {
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struct list_head ports;
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/* To synchronize the ports list operations */
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struct mutex lock;
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};
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/**
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* struct ice_adapter - PCI adapter resources shared across PFs
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* @ptp_gltsyn_time_lock: Spinlock protecting access to the GLTSYN_TIME
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* register of the PTP clock.
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* @refcount: Reference count. struct ice_pf objects hold the references.
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* @ctrl_pf: Control PF of the adapter
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* @ports: Ports list
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*/
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struct ice_adapter {
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refcount_t refcount;
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/* For access to the GLTSYN_TIME register */
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spinlock_t ptp_gltsyn_time_lock;
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struct ice_pf *ctrl_pf;
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struct ice_port_list ports;
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};
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struct ice_adapter *ice_adapter_get(const struct pci_dev *pdev);
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void ice_adapter_put(const struct pci_dev *pdev);
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#endif /* _ICE_ADAPTER_H */
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