LXR linux/drivers/net/ethernet/intel/ixgbe/ixgbe

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/* Copyright(c) 1999 - 2018 Intel Corporation. */
   3
   4#ifndef _IXGBE_MBX_H_
   5#define _IXGBE_MBX_H_
   6
   7#include "ixgbe_type.h"
   8
   9#define IXGBE_VFMAILBOX_SIZE        16 /* 16 32 bit words - 64 bytes */
  10#define IXGBE_ERR_MBX               -100
  11
  12#define IXGBE_VFMAILBOX             0x002FC
  13#define IXGBE_VFMBMEM               0x00200
  14
  15#define IXGBE_PFMAILBOX_STS   0x00000001 /* Initiate message send to VF */
  16#define IXGBE_PFMAILBOX_ACK   0x00000002 /* Ack message recv'd from VF */
  17#define IXGBE_PFMAILBOX_VFU   0x00000004 /* VF owns the mailbox buffer */
  18#define IXGBE_PFMAILBOX_PFU   0x00000008 /* PF owns the mailbox buffer */
  19#define IXGBE_PFMAILBOX_RVFU  0x00000010 /* Reset VFU - used when VF stuck */
  20
  21#define IXGBE_MBVFICR_VFREQ_MASK 0x0000FFFF /* bits for VF messages */
  22#define IXGBE_MBVFICR_VFREQ_VF1  0x00000001 /* bit for VF 1 message */
  23#define IXGBE_MBVFICR_VFACK_MASK 0xFFFF0000 /* bits for VF acks */
  24#define IXGBE_MBVFICR_VFACK_VF1  0x00010000 /* bit for VF 1 ack */
  25
  26
  27/* If it's a IXGBE_VF_* msg then it originates in the VF and is sent to the
  28 * PF.  The reverse is true if it is IXGBE_PF_*.
  29 * Message ACK's are the value or'd with 0xF0000000
  30 */
  31#define IXGBE_VT_MSGTYPE_ACK      0x80000000  /* Messages below or'd with
  32                                               * this are the ACK */
  33#define IXGBE_VT_MSGTYPE_NACK     0x40000000  /* Messages below or'd with
  34                                               * this are the NACK */
  35#define IXGBE_VT_MSGTYPE_CTS      0x20000000  /* Indicates that VF is still
  36                                                 clear to send requests */
  37#define IXGBE_VT_MSGINFO_SHIFT    16
  38/* bits 23:16 are used for exra info for certain messages */
  39#define IXGBE_VT_MSGINFO_MASK     (0xFF << IXGBE_VT_MSGINFO_SHIFT)
  40
  41/* definitions to support mailbox API version negotiation */
  42
  43/*
  44 * Each element denotes a version of the API; existing numbers may not
  45 * change; any additions must go at the end
  46 */
  47enum ixgbe_pfvf_api_rev {
  48        ixgbe_mbox_api_10,      /* API version 1.0, linux/freebsd VF driver */
  49        ixgbe_mbox_api_20,      /* API version 2.0, solaris Phase1 VF driver */
  50        ixgbe_mbox_api_11,      /* API version 1.1, linux/freebsd VF driver */
  51        ixgbe_mbox_api_12,      /* API version 1.2, linux/freebsd VF driver */
  52        ixgbe_mbox_api_13,      /* API version 1.3, linux/freebsd VF driver */
  53        ixgbe_mbox_api_14,      /* API version 1.4, linux/freebsd VF driver */
  54        /* This value should always be last */
  55        ixgbe_mbox_api_unknown, /* indicates that API version is not known */
  56};
  57
  58/* mailbox API, legacy requests */
  59#define IXGBE_VF_RESET            0x01 /* VF requests reset */
  60#define IXGBE_VF_SET_MAC_ADDR     0x02 /* VF requests PF to set MAC addr */
  61#define IXGBE_VF_SET_MULTICAST    0x03 /* VF requests PF to set MC addr */
  62#define IXGBE_VF_SET_VLAN         0x04 /* VF requests PF to set VLAN */
  63
  64/* mailbox API, version 1.0 VF requests */
  65#define IXGBE_VF_SET_LPE        0x05 /* VF requests PF to set VMOLR.LPE */
  66#define IXGBE_VF_SET_MACVLAN    0x06 /* VF requests PF for unicast filter */
  67#define IXGBE_VF_API_NEGOTIATE  0x08 /* negotiate API version */
  68
  69/* mailbox API, version 1.1 VF requests */
  70#define IXGBE_VF_GET_QUEUES     0x09 /* get queue configuration */
  71
  72/* GET_QUEUES return data indices within the mailbox */
  73#define IXGBE_VF_TX_QUEUES      1       /* number of Tx queues supported */
  74#define IXGBE_VF_RX_QUEUES      2       /* number of Rx queues supported */
  75#define IXGBE_VF_TRANS_VLAN     3       /* Indication of port vlan */
  76#define IXGBE_VF_DEF_QUEUE      4       /* Default queue offset */
  77
  78/* mailbox API, version 1.2 VF requests */
  79#define IXGBE_VF_GET_RETA       0x0a    /* VF request for RETA */
  80#define IXGBE_VF_GET_RSS_KEY    0x0b    /* get RSS key */
  81
  82#define IXGBE_VF_UPDATE_XCAST_MODE      0x0c
  83
  84/* mailbox API, version 1.4 VF requests */
  85#define IXGBE_VF_IPSEC_ADD      0x0d
  86#define IXGBE_VF_IPSEC_DEL      0x0e
  87
  88/* length of permanent address message returned from PF */
  89#define IXGBE_VF_PERMADDR_MSG_LEN 4
  90/* word in permanent address message with the current multicast type */
  91#define IXGBE_VF_MC_TYPE_WORD     3
  92
  93#define IXGBE_PF_CONTROL_MSG      0x0100 /* PF control message */
  94
  95#define IXGBE_VF_MBX_INIT_TIMEOUT 2000 /* number of retries on mailbox */
  96#define IXGBE_VF_MBX_INIT_DELAY   500  /* microseconds between retries */
  97
  98s32 ixgbe_read_mbx(struct ixgbe_hw *, u32 *, u16, u16);
  99s32 ixgbe_write_mbx(struct ixgbe_hw *, u32 *, u16, u16);
 100s32 ixgbe_check_for_msg(struct ixgbe_hw *, u16);
 101s32 ixgbe_check_for_ack(struct ixgbe_hw *, u16);
 102s32 ixgbe_check_for_rst(struct ixgbe_hw *, u16);
 103#ifdef CONFIG_PCI_IOV
 104void ixgbe_init_mbx_params_pf(struct ixgbe_hw *);
 105#endif /* CONFIG_PCI_IOV */
 106
 107extern const struct ixgbe_mbx_operations mbx_ops_generic;
 108
 109#endif /* _IXGBE_MBX_H_ */
 110