/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
/* Copyright (C) 2015-2018 Netronome Systems, Inc. */
-/*
- * nfp_net_ctrl.h
+/* nfp_net_ctrl.h
* Netronome network device driver: Control BAR layout
* Authors: Jakub Kicinski <jakub.kicinski@netronome.com>
* Jason McMullan <jason.mcmullan@netronome.com>
#include <linux/types.h>
-/**
- * Configuration BAR size.
+/* Configuration BAR size.
*
* The configuration BAR is 8K in size, but due to
* THB-350, 32k needs to be reserved.
*/
#define NFP_NET_CFG_BAR_SZ (32 * 1024)
-/**
- * Offset in Freelist buffer where packet starts on RX
- */
+/* Offset in Freelist buffer where packet starts on RX */
#define NFP_NET_RX_OFFSET 32
-/**
- * LSO parameters
+/* LSO parameters
* %NFP_NET_LSO_MAX_HDR_SZ: Maximum header size supported for LSO frames
* %NFP_NET_LSO_MAX_SEGS: Maximum number of segments LSO frame can produce
*/
#define NFP_NET_LSO_MAX_HDR_SZ 255
#define NFP_NET_LSO_MAX_SEGS 64
-/**
- * Prepend field types
- */
+/* Prepend field types */
#define NFP_NET_META_FIELD_SIZE 4
#define NFP_NET_META_HASH 1 /* next field carries hash type */
#define NFP_NET_META_MARK 2
#define NFP_META_PORT_ID_CTRL ~0U
-/**
- * Hash type pre-pended when a RSS hash was computed
- */
+/* Hash type pre-pended when a RSS hash was computed */
#define NFP_NET_RSS_NONE 0
#define NFP_NET_RSS_IPV4 1
#define NFP_NET_RSS_IPV6 2
#define NFP_NET_RSS_IPV6_UDP 8
#define NFP_NET_RSS_IPV6_EX_UDP 9
-/**
- * Ring counts
+/* Ring counts
* %NFP_NET_TXR_MAX: Maximum number of TX rings
* %NFP_NET_RXR_MAX: Maximum number of RX rings
*/
#define NFP_NET_TXR_MAX 64
#define NFP_NET_RXR_MAX 64
-/**
- * Read/Write config words (0x0000 - 0x002c)
+/* Read/Write config words (0x0000 - 0x002c)
* %NFP_NET_CFG_CTRL: Global control
* %NFP_NET_CFG_UPDATE: Indicate which fields are updated
* %NFP_NET_CFG_TXRS_ENABLE: Bitmask of enabled TX rings
#define NFP_NET_CFG_LSC 0x0020
#define NFP_NET_CFG_MACADDR 0x0024
-/**
- * Read-only words (0x0030 - 0x0050):
+/* Read-only words (0x0030 - 0x0050):
* %NFP_NET_CFG_VERSION: Firmware version number
* %NFP_NET_CFG_STS: Status
* %NFP_NET_CFG_CAP: Capabilities (same bits as %NFP_NET_CFG_CTRL)
#define NFP_NET_CFG_START_TXQ 0x0048
#define NFP_NET_CFG_START_RXQ 0x004c
-/**
- * Prepend configuration
+/* Prepend configuration
*/
#define NFP_NET_CFG_RX_OFFSET 0x0050
#define NFP_NET_CFG_RX_OFFSET_DYNAMIC 0 /* Prepend mode */
-/**
- * RSS capabilities
+/* RSS capabilities
* %NFP_NET_CFG_RSS_CAP_HFUNC: supported hash functions (same bits as
* %NFP_NET_CFG_RSS_HFUNC)
*/
#define NFP_NET_CFG_RSS_CAP 0x0054
#define NFP_NET_CFG_RSS_CAP_HFUNC 0xff000000
-/**
- * TLV area start
+/* TLV area start
* %NFP_NET_CFG_TLV_BASE: start anchor of the TLV area
*/
#define NFP_NET_CFG_TLV_BASE 0x0058
-/**
- * VXLAN/UDP encap configuration
+/* VXLAN/UDP encap configuration
* %NFP_NET_CFG_VXLAN_PORT: Base address of table of tunnels' UDP dst ports
* %NFP_NET_CFG_VXLAN_SZ: Size of the UDP port table in bytes
*/
#define NFP_NET_CFG_VXLAN_PORT 0x0060
#define NFP_NET_CFG_VXLAN_SZ 0x0008
-/**
- * BPF section
+/* BPF section
* %NFP_NET_CFG_BPF_ABI: BPF ABI version
* %NFP_NET_CFG_BPF_CAP: BPF capabilities
* %NFP_NET_CFG_BPF_MAX_LEN: Maximum size of JITed BPF code in bytes
#define NFP_NET_CFG_BPF_CFG_MASK 7ULL
#define NFP_NET_CFG_BPF_ADDR_MASK (~NFP_NET_CFG_BPF_CFG_MASK)
-/**
- * 40B reserved for future use (0x0098 - 0x00c0)
+/* 40B reserved for future use (0x0098 - 0x00c0)
*/
#define NFP_NET_CFG_RESERVED 0x0098
#define NFP_NET_CFG_RESERVED_SZ 0x0028
-/**
- * RSS configuration (0x0100 - 0x01ac):
+/* RSS configuration (0x0100 - 0x01ac):
* Used only when NFP_NET_CFG_CTRL_RSS is enabled
* %NFP_NET_CFG_RSS_CFG: RSS configuration word
* %NFP_NET_CFG_RSS_KEY: RSS "secret" key
NFP_NET_CFG_RSS_KEY_SZ)
#define NFP_NET_CFG_RSS_ITBL_SZ 0x80
-/**
- * TX ring configuration (0x200 - 0x800)
+/* TX ring configuration (0x200 - 0x800)
* %NFP_NET_CFG_TXR_BASE: Base offset for TX ring configuration
* %NFP_NET_CFG_TXR_ADDR: Per TX ring DMA address (8B entries)
* %NFP_NET_CFG_TXR_WB_ADDR: Per TX ring write back DMA address (8B entries)
#define NFP_NET_CFG_TXR_IRQ_MOD(_x) (NFP_NET_CFG_TXR_BASE + 0x500 + \
((_x) * 0x4))
-/**
- * RX ring configuration (0x0800 - 0x0c00)
+/* RX ring configuration (0x0800 - 0x0c00)
* %NFP_NET_CFG_RXR_BASE: Base offset for RX ring configuration
* %NFP_NET_CFG_RXR_ADDR: Per RX ring DMA address (8B entries)
* %NFP_NET_CFG_RXR_SZ: Per RX ring ring size (1B entries)
#define NFP_NET_CFG_RXR_IRQ_MOD(_x) (NFP_NET_CFG_RXR_BASE + 0x300 + \
((_x) * 0x4))
-/**
- * Interrupt Control/Cause registers (0x0c00 - 0x0d00)
+/* Interrupt Control/Cause registers (0x0c00 - 0x0d00)
* These registers are only used when MSI-X auto-masking is not
* enabled (%NFP_NET_CFG_CTRL_MSIXAUTO not set). The array is index
* by MSI-X entry and are 1B in size. If an entry is zero, the
#define NFP_NET_CFG_ICR_RXTX 0x1
#define NFP_NET_CFG_ICR_LSC 0x2
-/**
- * General device stats (0x0d00 - 0x0d90)
+/* General device stats (0x0d00 - 0x0d90)
* all counters are 64bit.
*/
#define NFP_NET_CFG_STATS_BASE 0x0d00
#define NFP_NET_CFG_STATS_APP3_FRAMES (NFP_NET_CFG_STATS_BASE + 0xc0)
#define NFP_NET_CFG_STATS_APP3_BYTES (NFP_NET_CFG_STATS_BASE + 0xc8)
-/**
- * Per ring stats (0x1000 - 0x1800)
+/* Per ring stats (0x1000 - 0x1800)
* options, 64bit per entry
* %NFP_NET_CFG_TXR_STATS: TX ring statistics (Packet and Byte count)
* %NFP_NET_CFG_RXR_STATS: RX ring statistics (Packet and Byte count)
#define NFP_NET_CFG_RXR_STATS(_x) (NFP_NET_CFG_RXR_STATS_BASE + \
((_x) * 0x10))
-/**
- * General use mailbox area (0x1800 - 0x19ff)
+/* General use mailbox area (0x1800 - 0x19ff)
* 4B used for update command and 4B return code
* followed by a max of 504B of variable length value
*/
#define NFP_NET_CFG_MBOX_CMD_PCI_DSCP_PRIOMAP_SET 5
#define NFP_NET_CFG_MBOX_CMD_TLV_CMSG 6
-/**
- * VLAN filtering using general use mailbox
+/* VLAN filtering using general use mailbox
* %NFP_NET_CFG_VLAN_FILTER: Base address of VLAN filter mailbox
* %NFP_NET_CFG_VLAN_FILTER_VID: VLAN ID to filter
* %NFP_NET_CFG_VLAN_FILTER_PROTO: VLAN proto to filter
#define NFP_NET_CFG_VLAN_FILTER_PROTO (NFP_NET_CFG_VLAN_FILTER + 2)
#define NFP_NET_CFG_VLAN_FILTER_SZ 0x0004
-/**
- * TLV capabilities
+/* TLV capabilities
* %NFP_NET_CFG_TLV_TYPE: Offset of type within the TLV
* %NFP_NET_CFG_TLV_TYPE_REQUIRED: Driver must be able to parse the TLV
* %NFP_NET_CFG_TLV_LENGTH: Offset of length within the TLV
#define NFP_NET_CFG_TLV_HEADER_TYPE 0x7fff0000
#define NFP_NET_CFG_TLV_HEADER_LENGTH 0x0000ffff
-/**
- * Capability TLV types
+/* Capability TLV types
*
* %NFP_NET_CFG_TLV_TYPE_UNKNOWN:
* Special TLV type to catch bugs, should never be encountered. Drivers should
struct device;
-/**
- * struct nfp_net_tlv_caps - parsed control BAR TLV capabilities
+/* struct nfp_net_tlv_caps - parsed control BAR TLV capabilities
* @me_freq_mhz: ME clock_freq (MHz)
* @mbox_off: vNIC mailbox area offset
* @mbox_len: vNIC mailbox area length
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