xref: /kernel/linux/linux-6.6/drivers/net/ethernet/intel/igb/e1000_mbx.h

/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright(c) 2007 - 2018 Intel Corporation. */

#ifndef _E1000_MBX_H_
#define _E1000_MBX_H_

#include "e1000_hw.h"

#define E1000_P2VMAILBOX_STS	0x00000001 /* Initiate message send to VF */
#define E1000_P2VMAILBOX_ACK	0x00000002 /* Ack message recv'd from VF */
#define E1000_P2VMAILBOX_VFU	0x00000004 /* VF owns the mailbox buffer */
#define E1000_P2VMAILBOX_PFU	0x00000008 /* PF owns the mailbox buffer */
#define E1000_P2VMAILBOX_RVFU	0x00000010 /* Reset VFU - used when VF stuck */

#define E1000_MBVFICR_VFREQ_MASK	0x000000FF /* bits for VF messages */
#define E1000_MBVFICR_VFREQ_VF1		0x00000001 /* bit for VF 1 message */
#define E1000_MBVFICR_VFACK_MASK	0x00FF0000 /* bits for VF acks */
#define E1000_MBVFICR_VFACK_VF1		0x00010000 /* bit for VF 1 ack */

#define E1000_VFMAILBOX_SIZE	16 /* 16 32 bit words - 64 bytes */

/* If it's a E1000_VF_* msg then it originates in the VF and is sent to the
 * PF.  The reverse is true if it is E1000_PF_*.
 * Message ACK's are the value or'd with 0xF0000000
 */
/* Messages below or'd with this are the ACK */
#define E1000_VT_MSGTYPE_ACK	0x80000000
/* Messages below or'd with this are the NACK */
#define E1000_VT_MSGTYPE_NACK	0x40000000
/* Indicates that VF is still clear to send requests */
#define E1000_VT_MSGTYPE_CTS	0x20000000
#define E1000_VT_MSGINFO_SHIFT	16
/* bits 23:16 are used for exra info for certain messages */
#define E1000_VT_MSGINFO_MASK	(0xFF << E1000_VT_MSGINFO_SHIFT)

#define E1000_VF_RESET		0x01 /* VF requests reset */
#define E1000_VF_SET_MAC_ADDR	0x02 /* VF requests to set MAC addr */
/* VF requests to clear all unicast MAC filters */
#define E1000_VF_MAC_FILTER_CLR	(0x01 << E1000_VT_MSGINFO_SHIFT)
/* VF requests to add unicast MAC filter */
#define E1000_VF_MAC_FILTER_ADD	(0x02 << E1000_VT_MSGINFO_SHIFT)
#define E1000_VF_SET_MULTICAST	0x03 /* VF requests to set MC addr */
#define E1000_VF_SET_VLAN	0x04 /* VF requests to set VLAN */
#define E1000_VF_SET_LPE	0x05 /* VF requests to set VMOLR.LPE */
#define E1000_VF_SET_PROMISC	0x06 /*VF requests to clear VMOLR.ROPE/MPME*/
#define E1000_VF_SET_PROMISC_MULTICAST	(0x02 << E1000_VT_MSGINFO_SHIFT)

#define E1000_PF_CONTROL_MSG	0x0100 /* PF control message */

s32 igb_read_mbx(struct e1000_hw *hw, u32 *msg, u16 size, u16 mbx_id,
		 bool unlock);
s32 igb_write_mbx(struct e1000_hw *hw, u32 *msg, u16 size, u16 mbx_id);
s32 igb_check_for_msg(struct e1000_hw *hw, u16 mbx_id);
s32 igb_check_for_ack(struct e1000_hw *hw, u16 mbx_id);
s32 igb_check_for_rst(struct e1000_hw *hw, u16 mbx_id);
s32 igb_unlock_mbx(struct e1000_hw *hw, u16 mbx_id);
s32 igb_init_mbx_params_pf(struct e1000_hw *hw);

#endif /* _E1000_MBX_H_ */