324 lines
15 KiB
C
324 lines
15 KiB
C
/*
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* Copyright (C) 2015 Netronome Systems, Inc.
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*
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* This software is dual licensed under the GNU General License Version 2,
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* June 1991 as shown in the file COPYING in the top-level directory of this
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* source tree or the BSD 2-Clause License provided below. You have the
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* option to license this software under the complete terms of either license.
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*
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* The BSD 2-Clause License:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* 1. Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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/*
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* nfp_net_ctrl.h
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* Netronome network device driver: Control BAR layout
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* Authors: Jakub Kicinski <jakub.kicinski@netronome.com>
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* Jason McMullan <jason.mcmullan@netronome.com>
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* Rolf Neugebauer <rolf.neugebauer@netronome.com>
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* Brad Petrus <brad.petrus@netronome.com>
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*/
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#ifndef _NFP_NET_CTRL_H_
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#define _NFP_NET_CTRL_H_
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/* IMPORTANT: This header file is shared with the FW,
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* no OS specific constructs, please!
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*/
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/**
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* Configuration BAR size.
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*
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* The configuration BAR is 8K in size, but on the NFP6000, due to
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* THB-350, 32k needs to be reserved.
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*/
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#define NFP_NET_CFG_BAR_SZ (32 * 1024)
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/**
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* Offset in Freelist buffer where packet starts on RX
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*/
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#define NFP_NET_RX_OFFSET 32
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/**
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* Maximum header size supported for LSO frames
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*/
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#define NFP_NET_LSO_MAX_HDR_SZ 255
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/**
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* Hash type pre-pended when a RSS hash was computed
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*/
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#define NFP_NET_RSS_NONE 0
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#define NFP_NET_RSS_IPV4 1
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#define NFP_NET_RSS_IPV6 2
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#define NFP_NET_RSS_IPV6_EX 3
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#define NFP_NET_RSS_IPV4_TCP 4
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#define NFP_NET_RSS_IPV6_TCP 5
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#define NFP_NET_RSS_IPV6_EX_TCP 6
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#define NFP_NET_RSS_IPV4_UDP 7
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#define NFP_NET_RSS_IPV6_UDP 8
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#define NFP_NET_RSS_IPV6_EX_UDP 9
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/**
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* @NFP_NET_TXR_MAX: Maximum number of TX rings
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* @NFP_NET_TXR_MASK: Mask for TX rings
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* @NFP_NET_RXR_MAX: Maximum number of RX rings
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* @NFP_NET_RXR_MASK: Mask for RX rings
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*/
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#define NFP_NET_TXR_MAX 64
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#define NFP_NET_TXR_MASK (NFP_NET_TXR_MAX - 1)
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#define NFP_NET_RXR_MAX 64
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#define NFP_NET_RXR_MASK (NFP_NET_RXR_MAX - 1)
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/**
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* Read/Write config words (0x0000 - 0x002c)
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* @NFP_NET_CFG_CTRL: Global control
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* @NFP_NET_CFG_UPDATE: Indicate which fields are updated
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* @NFP_NET_CFG_TXRS_ENABLE: Bitmask of enabled TX rings
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* @NFP_NET_CFG_RXRS_ENABLE: Bitmask of enabled RX rings
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* @NFP_NET_CFG_MTU: Set MTU size
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* @NFP_NET_CFG_FLBUFSZ: Set freelist buffer size (must be larger than MTU)
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* @NFP_NET_CFG_EXN: MSI-X table entry for exceptions
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* @NFP_NET_CFG_LSC: MSI-X table entry for link state changes
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* @NFP_NET_CFG_MACADDR: MAC address
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*
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* TODO:
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* - define Error details in UPDATE
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*/
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#define NFP_NET_CFG_CTRL 0x0000
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#define NFP_NET_CFG_CTRL_ENABLE (0x1 << 0) /* Global enable */
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#define NFP_NET_CFG_CTRL_PROMISC (0x1 << 1) /* Enable Promisc mode */
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#define NFP_NET_CFG_CTRL_L2BC (0x1 << 2) /* Allow L2 Broadcast */
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#define NFP_NET_CFG_CTRL_L2MC (0x1 << 3) /* Allow L2 Multicast */
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#define NFP_NET_CFG_CTRL_RXCSUM (0x1 << 4) /* Enable RX Checksum */
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#define NFP_NET_CFG_CTRL_TXCSUM (0x1 << 5) /* Enable TX Checksum */
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#define NFP_NET_CFG_CTRL_RXVLAN (0x1 << 6) /* Enable VLAN strip */
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#define NFP_NET_CFG_CTRL_TXVLAN (0x1 << 7) /* Enable VLAN insert */
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#define NFP_NET_CFG_CTRL_SCATTER (0x1 << 8) /* Scatter DMA */
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#define NFP_NET_CFG_CTRL_GATHER (0x1 << 9) /* Gather DMA */
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#define NFP_NET_CFG_CTRL_LSO (0x1 << 10) /* LSO/TSO */
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#define NFP_NET_CFG_CTRL_RINGCFG (0x1 << 16) /* Ring runtime changes */
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#define NFP_NET_CFG_CTRL_RSS (0x1 << 17) /* RSS */
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#define NFP_NET_CFG_CTRL_IRQMOD (0x1 << 18) /* Interrupt moderation */
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#define NFP_NET_CFG_CTRL_RINGPRIO (0x1 << 19) /* Ring priorities */
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#define NFP_NET_CFG_CTRL_MSIXAUTO (0x1 << 20) /* MSI-X auto-masking */
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#define NFP_NET_CFG_CTRL_TXRWB (0x1 << 21) /* Write-back of TX ring*/
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#define NFP_NET_CFG_CTRL_L2SWITCH (0x1 << 22) /* L2 Switch */
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#define NFP_NET_CFG_CTRL_L2SWITCH_LOCAL (0x1 << 23) /* Switch to local */
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#define NFP_NET_CFG_CTRL_VXLAN (0x1 << 24) /* VXLAN tunnel support */
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#define NFP_NET_CFG_CTRL_NVGRE (0x1 << 25) /* NVGRE tunnel support */
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#define NFP_NET_CFG_UPDATE 0x0004
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#define NFP_NET_CFG_UPDATE_GEN (0x1 << 0) /* General update */
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#define NFP_NET_CFG_UPDATE_RING (0x1 << 1) /* Ring config change */
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#define NFP_NET_CFG_UPDATE_RSS (0x1 << 2) /* RSS config change */
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#define NFP_NET_CFG_UPDATE_TXRPRIO (0x1 << 3) /* TX Ring prio change */
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#define NFP_NET_CFG_UPDATE_RXRPRIO (0x1 << 4) /* RX Ring prio change */
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#define NFP_NET_CFG_UPDATE_MSIX (0x1 << 5) /* MSI-X change */
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#define NFP_NET_CFG_UPDATE_L2SWITCH (0x1 << 6) /* Switch changes */
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#define NFP_NET_CFG_UPDATE_RESET (0x1 << 7) /* Update due to FLR */
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#define NFP_NET_CFG_UPDATE_IRQMOD (0x1 << 8) /* IRQ mod change */
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#define NFP_NET_CFG_UPDATE_VXLAN (0x1 << 9) /* VXLAN port change */
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#define NFP_NET_CFG_UPDATE_ERR (0x1 << 31) /* A error occurred */
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#define NFP_NET_CFG_TXRS_ENABLE 0x0008
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#define NFP_NET_CFG_RXRS_ENABLE 0x0010
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#define NFP_NET_CFG_MTU 0x0018
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#define NFP_NET_CFG_FLBUFSZ 0x001c
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#define NFP_NET_CFG_EXN 0x001f
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#define NFP_NET_CFG_LSC 0x0020
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#define NFP_NET_CFG_MACADDR 0x0024
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/**
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* Read-only words (0x0030 - 0x0050):
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* @NFP_NET_CFG_VERSION: Firmware version number
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* @NFP_NET_CFG_STS: Status
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* @NFP_NET_CFG_CAP: Capabilities (same bits as @NFP_NET_CFG_CTRL)
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* @NFP_NET_MAX_TXRINGS: Maximum number of TX rings
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* @NFP_NET_MAX_RXRINGS: Maximum number of RX rings
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* @NFP_NET_MAX_MTU: Maximum support MTU
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* @NFP_NET_CFG_START_TXQ: Start Queue Control Queue to use for TX (PF only)
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* @NFP_NET_CFG_START_RXQ: Start Queue Control Queue to use for RX (PF only)
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*
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* TODO:
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* - define more STS bits
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*/
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#define NFP_NET_CFG_VERSION 0x0030
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#define NFP_NET_CFG_VERSION_RESERVED_MASK (0xff << 24)
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#define NFP_NET_CFG_VERSION_CLASS_MASK (0xff << 16)
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#define NFP_NET_CFG_VERSION_CLASS(x) (((x) & 0xff) << 16)
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#define NFP_NET_CFG_VERSION_CLASS_GENERIC 0
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#define NFP_NET_CFG_VERSION_MAJOR_MASK (0xff << 8)
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#define NFP_NET_CFG_VERSION_MAJOR(x) (((x) & 0xff) << 8)
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#define NFP_NET_CFG_VERSION_MINOR_MASK (0xff << 0)
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#define NFP_NET_CFG_VERSION_MINOR(x) (((x) & 0xff) << 0)
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#define NFP_NET_CFG_STS 0x0034
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#define NFP_NET_CFG_STS_LINK (0x1 << 0) /* Link up or down */
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#define NFP_NET_CFG_CAP 0x0038
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#define NFP_NET_CFG_MAX_TXRINGS 0x003c
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#define NFP_NET_CFG_MAX_RXRINGS 0x0040
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#define NFP_NET_CFG_MAX_MTU 0x0044
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/* Next two words are being used by VFs for solving THB350 issue */
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#define NFP_NET_CFG_START_TXQ 0x0048
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#define NFP_NET_CFG_START_RXQ 0x004c
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/**
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* NFP-3200 workaround (0x0050 - 0x0058)
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* @NFP_NET_CFG_SPARE_ADDR: DMA address for ME code to use (e.g. YDS-155 fix)
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*/
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#define NFP_NET_CFG_SPARE_ADDR 0x0050
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/**
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* NFP6000/NFP4000 - Prepend configuration
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*/
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#define NFP_NET_CFG_RX_OFFSET 0x0050
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#define NFP_NET_CFG_RX_OFFSET_DYNAMIC 0 /* Prepend mode */
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/**
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* NFP6000/NFP4000 - VXLAN/UDP encap configuration
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* @NFP_NET_CFG_VXLAN_PORT: Base address of table of tunnels' UDP dst ports
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* @NFP_NET_CFG_VXLAN_SZ: Size of the UDP port table in bytes
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*/
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#define NFP_NET_CFG_VXLAN_PORT 0x0060
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#define NFP_NET_CFG_VXLAN_SZ 0x0008
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/**
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* 64B reserved for future use (0x0080 - 0x00c0)
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*/
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#define NFP_NET_CFG_RESERVED 0x0080
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#define NFP_NET_CFG_RESERVED_SZ 0x0040
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/**
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* RSS configuration (0x0100 - 0x01ac):
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* Used only when NFP_NET_CFG_CTRL_RSS is enabled
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* @NFP_NET_CFG_RSS_CFG: RSS configuration word
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* @NFP_NET_CFG_RSS_KEY: RSS "secret" key
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* @NFP_NET_CFG_RSS_ITBL: RSS indirection table
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*/
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#define NFP_NET_CFG_RSS_BASE 0x0100
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#define NFP_NET_CFG_RSS_CTRL NFP_NET_CFG_RSS_BASE
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#define NFP_NET_CFG_RSS_MASK (0x7f)
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#define NFP_NET_CFG_RSS_MASK_of(_x) ((_x) & 0x7f)
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#define NFP_NET_CFG_RSS_IPV4 (1 << 8) /* RSS for IPv4 */
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#define NFP_NET_CFG_RSS_IPV6 (1 << 9) /* RSS for IPv6 */
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#define NFP_NET_CFG_RSS_IPV4_TCP (1 << 10) /* RSS for IPv4/TCP */
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#define NFP_NET_CFG_RSS_IPV4_UDP (1 << 11) /* RSS for IPv4/UDP */
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#define NFP_NET_CFG_RSS_IPV6_TCP (1 << 12) /* RSS for IPv6/TCP */
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#define NFP_NET_CFG_RSS_IPV6_UDP (1 << 13) /* RSS for IPv6/UDP */
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#define NFP_NET_CFG_RSS_TOEPLITZ (1 << 24) /* Use Toeplitz hash */
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#define NFP_NET_CFG_RSS_KEY (NFP_NET_CFG_RSS_BASE + 0x4)
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#define NFP_NET_CFG_RSS_KEY_SZ 0x28
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#define NFP_NET_CFG_RSS_ITBL (NFP_NET_CFG_RSS_BASE + 0x4 + \
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NFP_NET_CFG_RSS_KEY_SZ)
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#define NFP_NET_CFG_RSS_ITBL_SZ 0x80
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/**
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* TX ring configuration (0x200 - 0x800)
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* @NFP_NET_CFG_TXR_BASE: Base offset for TX ring configuration
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* @NFP_NET_CFG_TXR_ADDR: Per TX ring DMA address (8B entries)
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* @NFP_NET_CFG_TXR_WB_ADDR: Per TX ring write back DMA address (8B entries)
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* @NFP_NET_CFG_TXR_SZ: Per TX ring ring size (1B entries)
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* @NFP_NET_CFG_TXR_VEC: Per TX ring MSI-X table entry (1B entries)
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* @NFP_NET_CFG_TXR_PRIO: Per TX ring priority (1B entries)
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* @NFP_NET_CFG_TXR_IRQ_MOD: Per TX ring interrupt moderation packet
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*/
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#define NFP_NET_CFG_TXR_BASE 0x0200
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#define NFP_NET_CFG_TXR_ADDR(_x) (NFP_NET_CFG_TXR_BASE + ((_x) * 0x8))
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#define NFP_NET_CFG_TXR_WB_ADDR(_x) (NFP_NET_CFG_TXR_BASE + 0x200 + \
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((_x) * 0x8))
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#define NFP_NET_CFG_TXR_SZ(_x) (NFP_NET_CFG_TXR_BASE + 0x400 + (_x))
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#define NFP_NET_CFG_TXR_VEC(_x) (NFP_NET_CFG_TXR_BASE + 0x440 + (_x))
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#define NFP_NET_CFG_TXR_PRIO(_x) (NFP_NET_CFG_TXR_BASE + 0x480 + (_x))
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#define NFP_NET_CFG_TXR_IRQ_MOD(_x) (NFP_NET_CFG_TXR_BASE + 0x500 + \
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((_x) * 0x4))
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/**
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* RX ring configuration (0x0800 - 0x0c00)
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* @NFP_NET_CFG_RXR_BASE: Base offset for RX ring configuration
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* @NFP_NET_CFG_RXR_ADDR: Per RX ring DMA address (8B entries)
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* @NFP_NET_CFG_RXR_SZ: Per RX ring ring size (1B entries)
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* @NFP_NET_CFG_RXR_VEC: Per RX ring MSI-X table entry (1B entries)
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* @NFP_NET_CFG_RXR_PRIO: Per RX ring priority (1B entries)
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* @NFP_NET_CFG_RXR_IRQ_MOD: Per RX ring interrupt moderation (4B entries)
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*/
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#define NFP_NET_CFG_RXR_BASE 0x0800
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#define NFP_NET_CFG_RXR_ADDR(_x) (NFP_NET_CFG_RXR_BASE + ((_x) * 0x8))
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#define NFP_NET_CFG_RXR_SZ(_x) (NFP_NET_CFG_RXR_BASE + 0x200 + (_x))
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#define NFP_NET_CFG_RXR_VEC(_x) (NFP_NET_CFG_RXR_BASE + 0x240 + (_x))
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#define NFP_NET_CFG_RXR_PRIO(_x) (NFP_NET_CFG_RXR_BASE + 0x280 + (_x))
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#define NFP_NET_CFG_RXR_IRQ_MOD(_x) (NFP_NET_CFG_RXR_BASE + 0x300 + \
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((_x) * 0x4))
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/**
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* Interrupt Control/Cause registers (0x0c00 - 0x0d00)
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* These registers are only used when MSI-X auto-masking is not
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* enabled (@NFP_NET_CFG_CTRL_MSIXAUTO not set). The array is index
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* by MSI-X entry and are 1B in size. If an entry is zero, the
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* corresponding entry is enabled. If the FW generates an interrupt,
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* it writes a cause into the corresponding field. This also masks
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* the MSI-X entry and the host driver must clear the register to
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* re-enable the interrupt.
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*/
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#define NFP_NET_CFG_ICR_BASE 0x0c00
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#define NFP_NET_CFG_ICR(_x) (NFP_NET_CFG_ICR_BASE + (_x))
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#define NFP_NET_CFG_ICR_UNMASKED 0x0
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#define NFP_NET_CFG_ICR_RXTX 0x1
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#define NFP_NET_CFG_ICR_LSC 0x2
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/**
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* General device stats (0x0d00 - 0x0d90)
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* all counters are 64bit.
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*/
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#define NFP_NET_CFG_STATS_BASE 0x0d00
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#define NFP_NET_CFG_STATS_RX_DISCARDS (NFP_NET_CFG_STATS_BASE + 0x00)
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#define NFP_NET_CFG_STATS_RX_ERRORS (NFP_NET_CFG_STATS_BASE + 0x08)
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#define NFP_NET_CFG_STATS_RX_OCTETS (NFP_NET_CFG_STATS_BASE + 0x10)
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#define NFP_NET_CFG_STATS_RX_UC_OCTETS (NFP_NET_CFG_STATS_BASE + 0x18)
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#define NFP_NET_CFG_STATS_RX_MC_OCTETS (NFP_NET_CFG_STATS_BASE + 0x20)
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#define NFP_NET_CFG_STATS_RX_BC_OCTETS (NFP_NET_CFG_STATS_BASE + 0x28)
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#define NFP_NET_CFG_STATS_RX_FRAMES (NFP_NET_CFG_STATS_BASE + 0x30)
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#define NFP_NET_CFG_STATS_RX_MC_FRAMES (NFP_NET_CFG_STATS_BASE + 0x38)
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#define NFP_NET_CFG_STATS_RX_BC_FRAMES (NFP_NET_CFG_STATS_BASE + 0x40)
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#define NFP_NET_CFG_STATS_TX_DISCARDS (NFP_NET_CFG_STATS_BASE + 0x48)
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#define NFP_NET_CFG_STATS_TX_ERRORS (NFP_NET_CFG_STATS_BASE + 0x50)
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#define NFP_NET_CFG_STATS_TX_OCTETS (NFP_NET_CFG_STATS_BASE + 0x58)
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#define NFP_NET_CFG_STATS_TX_UC_OCTETS (NFP_NET_CFG_STATS_BASE + 0x60)
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#define NFP_NET_CFG_STATS_TX_MC_OCTETS (NFP_NET_CFG_STATS_BASE + 0x68)
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#define NFP_NET_CFG_STATS_TX_BC_OCTETS (NFP_NET_CFG_STATS_BASE + 0x70)
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#define NFP_NET_CFG_STATS_TX_FRAMES (NFP_NET_CFG_STATS_BASE + 0x78)
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#define NFP_NET_CFG_STATS_TX_MC_FRAMES (NFP_NET_CFG_STATS_BASE + 0x80)
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#define NFP_NET_CFG_STATS_TX_BC_FRAMES (NFP_NET_CFG_STATS_BASE + 0x88)
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/**
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* Per ring stats (0x1000 - 0x1800)
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* options, 64bit per entry
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* @NFP_NET_CFG_TXR_STATS: TX ring statistics (Packet and Byte count)
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* @NFP_NET_CFG_RXR_STATS: RX ring statistics (Packet and Byte count)
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*/
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#define NFP_NET_CFG_TXR_STATS_BASE 0x1000
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#define NFP_NET_CFG_TXR_STATS(_x) (NFP_NET_CFG_TXR_STATS_BASE + \
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((_x) * 0x10))
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#define NFP_NET_CFG_RXR_STATS_BASE 0x1400
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#define NFP_NET_CFG_RXR_STATS(_x) (NFP_NET_CFG_RXR_STATS_BASE + \
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((_x) * 0x10))
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#endif /* _NFP_NET_CTRL_H_ */
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