// SPDX-License-Identifier: GPL-2.0 /* Copyright(c) 2007 - 2018 Intel Corporation. */ #include "e1000_mbx.h" /** * igb_read_mbx - Reads a message from the mailbox * @hw: pointer to the HW structure * @msg: The message buffer * @size: Length of buffer * @mbx_id: id of mailbox to read * @unlock: skip locking or not * * returns SUCCESS if it successfully read message from buffer **/ s32 igb_read_mbx(struct e1000_hw *hw, u32 *msg, u16 size, u16 mbx_id, bool unlock) { … } /** * igb_write_mbx - Write a message to the mailbox * @hw: pointer to the HW structure * @msg: The message buffer * @size: Length of buffer * @mbx_id: id of mailbox to write * * returns SUCCESS if it successfully copied message into the buffer **/ s32 igb_write_mbx(struct e1000_hw *hw, u32 *msg, u16 size, u16 mbx_id) { … } /** * igb_check_for_msg - checks to see if someone sent us mail * @hw: pointer to the HW structure * @mbx_id: id of mailbox to check * * returns SUCCESS if the Status bit was found or else ERR_MBX **/ s32 igb_check_for_msg(struct e1000_hw *hw, u16 mbx_id) { … } /** * igb_check_for_ack - checks to see if someone sent us ACK * @hw: pointer to the HW structure * @mbx_id: id of mailbox to check * * returns SUCCESS if the Status bit was found or else ERR_MBX **/ s32 igb_check_for_ack(struct e1000_hw *hw, u16 mbx_id) { … } /** * igb_check_for_rst - checks to see if other side has reset * @hw: pointer to the HW structure * @mbx_id: id of mailbox to check * * returns SUCCESS if the Status bit was found or else ERR_MBX **/ s32 igb_check_for_rst(struct e1000_hw *hw, u16 mbx_id) { … } /** * igb_unlock_mbx - unlock the mailbox * @hw: pointer to the HW structure * @mbx_id: id of mailbox to check * * returns SUCCESS if the mailbox was unlocked or else ERR_MBX **/ s32 igb_unlock_mbx(struct e1000_hw *hw, u16 mbx_id) { … } /** * igb_poll_for_msg - Wait for message notification * @hw: pointer to the HW structure * @mbx_id: id of mailbox to write * * returns SUCCESS if it successfully received a message notification **/ static s32 igb_poll_for_msg(struct e1000_hw *hw, u16 mbx_id) { … } /** * igb_poll_for_ack - Wait for message acknowledgement * @hw: pointer to the HW structure * @mbx_id: id of mailbox to write * * returns SUCCESS if it successfully received a message acknowledgement **/ static s32 igb_poll_for_ack(struct e1000_hw *hw, u16 mbx_id) { … } /** * igb_read_posted_mbx - Wait for message notification and receive message * @hw: pointer to the HW structure * @msg: The message buffer * @size: Length of buffer * @mbx_id: id of mailbox to write * * returns SUCCESS if it successfully received a message notification and * copied it into the receive buffer. **/ static s32 igb_read_posted_mbx(struct e1000_hw *hw, u32 *msg, u16 size, u16 mbx_id) { … } /** * igb_write_posted_mbx - Write a message to the mailbox, wait for ack * @hw: pointer to the HW structure * @msg: The message buffer * @size: Length of buffer * @mbx_id: id of mailbox to write * * returns SUCCESS if it successfully copied message into the buffer and * received an ack to that message within delay * timeout period **/ static s32 igb_write_posted_mbx(struct e1000_hw *hw, u32 *msg, u16 size, u16 mbx_id) { … } static s32 igb_check_for_bit_pf(struct e1000_hw *hw, u32 mask) { … } /** * igb_check_for_msg_pf - checks to see if the VF has sent mail * @hw: pointer to the HW structure * @vf_number: the VF index * * returns SUCCESS if the VF has set the Status bit or else ERR_MBX **/ static s32 igb_check_for_msg_pf(struct e1000_hw *hw, u16 vf_number) { … } /** * igb_check_for_ack_pf - checks to see if the VF has ACKed * @hw: pointer to the HW structure * @vf_number: the VF index * * returns SUCCESS if the VF has set the Status bit or else ERR_MBX **/ static s32 igb_check_for_ack_pf(struct e1000_hw *hw, u16 vf_number) { … } /** * igb_check_for_rst_pf - checks to see if the VF has reset * @hw: pointer to the HW structure * @vf_number: the VF index * * returns SUCCESS if the VF has set the Status bit or else ERR_MBX **/ static s32 igb_check_for_rst_pf(struct e1000_hw *hw, u16 vf_number) { … } /** * igb_obtain_mbx_lock_pf - obtain mailbox lock * @hw: pointer to the HW structure * @vf_number: the VF index * * return SUCCESS if we obtained the mailbox lock **/ static s32 igb_obtain_mbx_lock_pf(struct e1000_hw *hw, u16 vf_number) { … } /** * igb_release_mbx_lock_pf - release mailbox lock * @hw: pointer to the HW structure * @vf_number: the VF index * * return SUCCESS if we released the mailbox lock **/ static s32 igb_release_mbx_lock_pf(struct e1000_hw *hw, u16 vf_number) { … } /** * igb_write_mbx_pf - Places a message in the mailbox * @hw: pointer to the HW structure * @msg: The message buffer * @size: Length of buffer * @vf_number: the VF index * * returns SUCCESS if it successfully copied message into the buffer **/ static s32 igb_write_mbx_pf(struct e1000_hw *hw, u32 *msg, u16 size, u16 vf_number) { … } /** * igb_read_mbx_pf - Read a message from the mailbox * @hw: pointer to the HW structure * @msg: The message buffer * @size: Length of buffer * @vf_number: the VF index * @unlock: unlock the mailbox when done? * * This function copies a message from the mailbox buffer to the caller's * memory buffer. The presumption is that the caller knows that there was * a message due to a VF request so no polling for message is needed. **/ static s32 igb_read_mbx_pf(struct e1000_hw *hw, u32 *msg, u16 size, u16 vf_number, bool unlock) { … } /** * igb_init_mbx_params_pf - set initial values for pf mailbox * @hw: pointer to the HW structure * * Initializes the hw->mbx struct to correct values for pf mailbox */ s32 igb_init_mbx_params_pf(struct e1000_hw *hw) { … }
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