cregit-Linux how code gets into the kernel

Release 4.18 drivers/net/ethernet/intel/ixgbevf/mbx.h

/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright(c) 1999 - 2018 Intel Corporation. */

#ifndef _IXGBE_MBX_H_

#define _IXGBE_MBX_H_

#include "vf.h"


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

#define IXGBE_ERR_MBX		-100


#define IXGBE_VFMAILBOX		0x002FC

#define IXGBE_VFMBMEM		0x00200

/* Define mailbox register bits */

#define IXGBE_VFMAILBOX_REQ	0x00000001 
/* Request for PF Ready bit */

#define IXGBE_VFMAILBOX_ACK	0x00000002 
/* Ack PF message received */

#define IXGBE_VFMAILBOX_VFU	0x00000004 
/* VF owns the mailbox buffer */

#define IXGBE_VFMAILBOX_PFU	0x00000008 
/* PF owns the mailbox buffer */

#define IXGBE_VFMAILBOX_PFSTS	0x00000010 
/* PF wrote a message in the MB */

#define IXGBE_VFMAILBOX_PFACK	0x00000020 
/* PF ack the previous VF msg */

#define IXGBE_VFMAILBOX_RSTI	0x00000040 
/* PF has reset indication */

#define IXGBE_VFMAILBOX_RSTD	0x00000080 
/* PF has indicated reset done */

#define IXGBE_VFMAILBOX_R2C_BITS 0x000000B0 
/* All read to clear bits */


#define IXGBE_PFMAILBOX(x)	(0x04B00 + (4 * (x)))

#define IXGBE_PFMBMEM(vfn)	(0x13000 + (64 * (vfn)))


#define IXGBE_PFMAILBOX_STS	0x00000001 
/* Initiate message send to VF */

#define IXGBE_PFMAILBOX_ACK	0x00000002 
/* Ack message recv'd from VF */

#define IXGBE_PFMAILBOX_VFU	0x00000004 
/* VF owns the mailbox buffer */

#define IXGBE_PFMAILBOX_PFU	0x00000008 
/* PF owns the mailbox buffer */

#define IXGBE_PFMAILBOX_RVFU	0x00000010 
/* Reset VFU - used when VF stuck */


#define IXGBE_MBVFICR_VFREQ_MASK 0x0000FFFF 
/* bits for VF messages */

#define IXGBE_MBVFICR_VFREQ_VF1	0x00000001 
/* bit for VF 1 message */

#define IXGBE_MBVFICR_VFACK_MASK 0xFFFF0000 
/* bits for VF acks */

#define IXGBE_MBVFICR_VFACK_VF1	0x00010000 
/* bit for VF 1 ack */

/* If it's a IXGBE_VF_* msg then it originates in the VF and is sent to the
 * PF.  The reverse is true if it is IXGBE_PF_*.
 * Message ACK's are the value or'd with 0xF0000000
 */
/* Messages below or'd with this are the ACK */

#define IXGBE_VT_MSGTYPE_ACK	0x80000000
/* Messages below or'd with this are the NACK */

#define IXGBE_VT_MSGTYPE_NACK	0x40000000
/* Indicates that VF is still clear to send requests */

#define IXGBE_VT_MSGTYPE_CTS	0x20000000

#define IXGBE_VT_MSGINFO_SHIFT	16
/* bits 23:16 are used for exra info for certain messages */

#define IXGBE_VT_MSGINFO_MASK	(0xFF << IXGBE_VT_MSGINFO_SHIFT)

/* definitions to support mailbox API version negotiation */

/* each element denotes a version of the API; existing numbers may not
 * change; any additions must go at the end
 */

enum ixgbe_pfvf_api_rev {
	
ixgbe_mbox_api_10,	/* API version 1.0, linux/freebsd VF driver */
	
ixgbe_mbox_api_20,	/* API version 2.0, solaris Phase1 VF driver */
	
ixgbe_mbox_api_11,	/* API version 1.1, linux/freebsd VF driver */
	
ixgbe_mbox_api_12,	/* API version 1.2, linux/freebsd VF driver */
	
ixgbe_mbox_api_13,	/* API version 1.3, linux/freebsd VF driver */
	/* This value should always be last */
	
ixgbe_mbox_api_unknown,	/* indicates that API version is not known */
};

/* mailbox API, legacy requests */

#define IXGBE_VF_RESET		0x01 
/* VF requests reset */

#define IXGBE_VF_SET_MAC_ADDR	0x02 
/* VF requests PF to set MAC addr */

#define IXGBE_VF_SET_MULTICAST	0x03 
/* VF requests PF to set MC addr */

#define IXGBE_VF_SET_VLAN	0x04 
/* VF requests PF to set VLAN */

/* mailbox API, version 1.0 VF requests */

#define IXGBE_VF_SET_LPE	0x05 
/* VF requests PF to set VMOLR.LPE */

#define IXGBE_VF_SET_MACVLAN	0x06 
/* VF requests PF for unicast filter */

#define IXGBE_VF_API_NEGOTIATE	0x08 
/* negotiate API version */

/* mailbox API, version 1.1 VF requests */

#define IXGBE_VF_GET_QUEUE	0x09 
/* get queue configuration */

/* GET_QUEUES return data indices within the mailbox */

#define IXGBE_VF_TX_QUEUES	1 
/* number of Tx queues supported */

#define IXGBE_VF_RX_QUEUES	2 
/* number of Rx queues supported */

#define IXGBE_VF_TRANS_VLAN	3 
/* Indication of port VLAN */

#define IXGBE_VF_DEF_QUEUE	4 
/* Default queue offset */

/* mailbox API, version 1.2 VF requests */

#define IXGBE_VF_GET_RETA	0x0a	
/* VF request for RETA */

#define IXGBE_VF_GET_RSS_KEY	0x0b	
/* get RSS hash key */


#define IXGBE_VF_UPDATE_XCAST_MODE	0x0c

/* length of permanent address message returned from PF */

#define IXGBE_VF_PERMADDR_MSG_LEN	4
/* word in permanent address message with the current multicast type */

#define IXGBE_VF_MC_TYPE_WORD		3


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


#define IXGBE_VF_MBX_INIT_TIMEOUT	2000 
/* number of retries on mailbox */

#define IXGBE_VF_MBX_INIT_DELAY		500  
/* microseconds between retries */

/* forward declaration of the HW struct */
struct ixgbe_hw;

#endif /* _IXGBE_MBX_H_ */

Overall Contributors

PersonTokensPropCommitsCommitProp
Greg Rose21372.20%216.67%
Alexander Duyck5418.31%325.00%
Vladislav Zolotarov144.75%216.67%
Jeff Kirsher72.37%325.00%
Hiroshi Shimamoto41.36%18.33%
Donald Skidmore31.02%18.33%
Total295100.00%12100.00%
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