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/*
* Copyright (c) 2014, 2015 Netronome Systems, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* vim:shiftwidth=8:noexpandtab
*
* Netronome network device driver: Control BAR layout
*/
#ifndef _NFP_NET_CTRL_H_
#define _NFP_NET_CTRL_H_
/*
* Configuration BAR size.
*
* The configuration BAR is 8K in size, but on the NFP6000, due to
* THB-350, 32k needs to be reserved.
*/
#ifdef __NFP_IS_6000
#define NFP_NET_CFG_BAR_SZ (32 * 1024)
#else
#define NFP_NET_CFG_BAR_SZ (8 * 1024)
#endif
/* Offset in Freelist buffer where packet starts on RX */
#define NFP_NET_RX_OFFSET 32
/* 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_EX 3
#define NFP_NET_RSS_IPV4_TCP 4
#define NFP_NET_RSS_IPV6_TCP 5
#define NFP_NET_RSS_IPV6_EX_TCP 6
#define NFP_NET_RSS_IPV4_UDP 7
#define NFP_NET_RSS_IPV6_UDP 8
#define NFP_NET_RSS_IPV6_EX_UDP 9
/*
* @NFP_NET_TXR_MAX: Maximum number of TX rings
* @NFP_NET_TXR_MASK: Mask for TX rings
* @NFP_NET_RXR_MAX: Maximum number of RX rings
* @NFP_NET_RXR_MASK: Mask for RX rings
*/
#define NFP_NET_TXR_MAX 64
#define NFP_NET_TXR_MASK (NFP_NET_TXR_MAX - 1)
#define NFP_NET_RXR_MAX 64
#define NFP_NET_RXR_MASK (NFP_NET_RXR_MAX - 1)
/*
* 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
* @NFP_NET_CFG_RXRS_ENABLE: Bitmask of enabled RX rings
* @NFP_NET_CFG_MTU: Set MTU size
* @NFP_NET_CFG_FLBUFSZ: Set freelist buffer size (must be larger than MTU)
* @NFP_NET_CFG_EXN: MSI-X table entry for exceptions
* @NFP_NET_CFG_LSC: MSI-X table entry for link state changes
* @NFP_NET_CFG_MACADDR: MAC address
*
* TODO:
* - define Error details in UPDATE
*/
#define NFP_NET_CFG_CTRL 0x0000
#define NFP_NET_CFG_CTRL_ENABLE (0x1 << 0) /* Global enable */
#define NFP_NET_CFG_CTRL_PROMISC (0x1 << 1) /* Enable Promisc mode */
#define NFP_NET_CFG_CTRL_L2BC (0x1 << 2) /* Allow L2 Broadcast */
#define NFP_NET_CFG_CTRL_L2MC (0x1 << 3) /* Allow L2 Multicast */
#define NFP_NET_CFG_CTRL_RXCSUM (0x1 << 4) /* Enable RX Checksum */
#define NFP_NET_CFG_CTRL_TXCSUM (0x1 << 5) /* Enable TX Checksum */
#define NFP_NET_CFG_CTRL_RXVLAN (0x1 << 6) /* Enable VLAN strip */
#define NFP_NET_CFG_CTRL_TXVLAN (0x1 << 7) /* Enable VLAN insert */
#define NFP_NET_CFG_CTRL_SCATTER (0x1 << 8) /* Scatter DMA */
#define NFP_NET_CFG_CTRL_GATHER (0x1 << 9) /* Gather DMA */
#define NFP_NET_CFG_CTRL_LSO (0x1 << 10) /* LSO/TSO */
#define NFP_NET_CFG_CTRL_RINGCFG (0x1 << 16) /* Ring runtime changes */
#define NFP_NET_CFG_CTRL_RSS (0x1 << 17) /* RSS */
#define NFP_NET_CFG_CTRL_IRQMOD (0x1 << 18) /* Interrupt moderation */
#define NFP_NET_CFG_CTRL_RINGPRIO (0x1 << 19) /* Ring priorities */
#define NFP_NET_CFG_CTRL_MSIXAUTO (0x1 << 20) /* MSI-X auto-masking */
#define NFP_NET_CFG_CTRL_TXRWB (0x1 << 21) /* Write-back of TX ring*/
#define NFP_NET_CFG_CTRL_L2SWITCH (0x1 << 22) /* L2 Switch */
#define NFP_NET_CFG_CTRL_L2SWITCH_LOCAL (0x1 << 23) /* Switch to local */
#define NFP_NET_CFG_CTRL_VXLAN (0x1 << 24) /* Enable VXLAN */
#define NFP_NET_CFG_CTRL_NVGRE (0x1 << 25) /* Enable NVGRE */
#define NFP_NET_CFG_CTRL_MSIX_TX_OFF (0x1 << 26) /* Disable MSIX for TX */
#define NFP_NET_CFG_UPDATE 0x0004
#define NFP_NET_CFG_UPDATE_GEN (0x1 << 0) /* General update */
#define NFP_NET_CFG_UPDATE_RING (0x1 << 1) /* Ring config change */
#define NFP_NET_CFG_UPDATE_RSS (0x1 << 2) /* RSS config change */
#define NFP_NET_CFG_UPDATE_TXRPRIO (0x1 << 3) /* TX Ring prio change */
#define NFP_NET_CFG_UPDATE_RXRPRIO (0x1 << 4) /* RX Ring prio change */
#define NFP_NET_CFG_UPDATE_MSIX (0x1 << 5) /* MSI-X change */
#define NFP_NET_CFG_UPDATE_L2SWITCH (0x1 << 6) /* Switch changes */
#define NFP_NET_CFG_UPDATE_RESET (0x1 << 7) /* Update due to FLR */
#define NFP_NET_CFG_UPDATE_IRQMOD (0x1 << 8) /* IRQ mod change */
#define NFP_NET_CFG_UPDATE_VXLAN (0x1 << 9) /* VXLAN port change */
#define NFP_NET_CFG_UPDATE_ERR (0x1 << 31) /* A error occurred */
#define NFP_NET_CFG_TXRS_ENABLE 0x0008
#define NFP_NET_CFG_RXRS_ENABLE 0x0010
#define NFP_NET_CFG_MTU 0x0018
#define NFP_NET_CFG_FLBUFSZ 0x001c
#define NFP_NET_CFG_EXN 0x001f
#define NFP_NET_CFG_LSC 0x0020
#define NFP_NET_CFG_MACADDR 0x0024
/*
* 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)
* @NFP_NET_MAX_TXRINGS: Maximum number of TX rings
* @NFP_NET_MAX_RXRINGS: Maximum number of RX rings
* @NFP_NET_MAX_MTU: Maximum support MTU
* @NFP_NET_CFG_START_TXQ: Start Queue Control Queue to use for TX (PF only)
* @NFP_NET_CFG_START_RXQ: Start Queue Control Queue to use for RX (PF only)
*
* TODO:
* - define more STS bits
*/
#define NFP_NET_CFG_VERSION 0x0030
#define NFP_NET_CFG_VERSION_RESERVED_MASK (0xff << 24)
#define NFP_NET_CFG_VERSION_CLASS_MASK (0xff << 16)
#define NFP_NET_CFG_VERSION_CLASS(x) (((x) & 0xff) << 16)
#define NFP_NET_CFG_VERSION_CLASS_GENERIC 0
#define NFP_NET_CFG_VERSION_MAJOR_MASK (0xff << 8)
#define NFP_NET_CFG_VERSION_MAJOR(x) (((x) & 0xff) << 8)
#define NFP_NET_CFG_VERSION_MINOR_MASK (0xff << 0)
#define NFP_NET_CFG_VERSION_MINOR(x) (((x) & 0xff) << 0)
#define NFP_NET_CFG_STS 0x0034
#define NFP_NET_CFG_STS_LINK (0x1 << 0) /* Link up or down */
/* Link rate */
#define NFP_NET_CFG_STS_LINK_RATE_SHIFT 1
#define NFP_NET_CFG_STS_LINK_RATE_MASK 0xF
#define NFP_NET_CFG_STS_LINK_RATE_UNSUPPORTED 0
#define NFP_NET_CFG_STS_LINK_RATE_UNKNOWN 1
#define NFP_NET_CFG_STS_LINK_RATE_1G 2
#define NFP_NET_CFG_STS_LINK_RATE_10G 3
#define NFP_NET_CFG_STS_LINK_RATE_25G 4
#define NFP_NET_CFG_STS_LINK_RATE_40G 5
#define NFP_NET_CFG_STS_LINK_RATE_50G 6
#define NFP_NET_CFG_STS_LINK_RATE_100G 7
#define NFP_NET_CFG_CAP 0x0038
#define NFP_NET_CFG_MAX_TXRINGS 0x003c
#define NFP_NET_CFG_MAX_RXRINGS 0x0040
#define NFP_NET_CFG_MAX_MTU 0x0044
/* Next two words are being used by VFs for solving THB350 issue */
#define NFP_NET_CFG_START_TXQ 0x0048
#define NFP_NET_CFG_START_RXQ 0x004c
/*
* NFP-3200 workaround (0x0050 - 0x0058)
* @NFP_NET_CFG_SPARE_ADDR: DMA address for ME code to use (e.g. YDS-155 fix)
*/
#define NFP_NET_CFG_SPARE_ADDR 0x0050
/**
* NFP6000/NFP4000 - Prepend configuration
*/
#define NFP_NET_CFG_RX_OFFSET 0x0050
#define NFP_NET_CFG_RX_OFFSET_DYNAMIC 0 /* Prepend mode */
/**
* Reuse spare address to contain the offset from the start of
* the host buffer where the first byte of the received frame
* will land. Any metadata will come prior to that offset. If the
* value in this field is 0, it means that that the metadata will
* always land starting at the first byte of the host buffer and
* packet data will immediately follow the metadata. As always,
* the RX descriptor indicates the presence or absence of metadata
* along with the length thereof.
*/
#define NFP_NET_CFG_RX_OFFSET_ADDR 0x0050
#define NFP_NET_CFG_VXLAN_PORT 0x0060
#define NFP_NET_CFG_VXLAN_SZ 0x0008
/* Offload definitions */
#define NFP_NET_N_VXLAN_PORTS (NFP_NET_CFG_VXLAN_SZ / sizeof(uint16_t))
/**
* 64B reserved for future use (0x0080 - 0x00c0)
*/
#define NFP_NET_CFG_RESERVED 0x0080
#define NFP_NET_CFG_RESERVED_SZ 0x0040
/*
* 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_ITBL: RSS indirection table
*/
#define NFP_NET_CFG_RSS_BASE 0x0100
#define NFP_NET_CFG_RSS_CTRL NFP_NET_CFG_RSS_BASE
#define NFP_NET_CFG_RSS_MASK (0x7f)
#define NFP_NET_CFG_RSS_MASK_of(_x) ((_x) & 0x7f)
#define NFP_NET_CFG_RSS_IPV4 (1 << 8) /* RSS for IPv4 */
#define NFP_NET_CFG_RSS_IPV6 (1 << 9) /* RSS for IPv6 */
#define NFP_NET_CFG_RSS_IPV4_TCP (1 << 10) /* RSS for IPv4/TCP */
#define NFP_NET_CFG_RSS_IPV4_UDP (1 << 11) /* RSS for IPv4/UDP */
#define NFP_NET_CFG_RSS_IPV6_TCP (1 << 12) /* RSS for IPv6/TCP */
#define NFP_NET_CFG_RSS_IPV6_UDP (1 << 13) /* RSS for IPv6/UDP */
#define NFP_NET_CFG_RSS_TOEPLITZ (1 << 24) /* Use Toeplitz hash */
#define NFP_NET_CFG_RSS_KEY (NFP_NET_CFG_RSS_BASE + 0x4)
#define NFP_NET_CFG_RSS_KEY_SZ 0x28
#define NFP_NET_CFG_RSS_ITBL (NFP_NET_CFG_RSS_BASE + 0x4 + \
NFP_NET_CFG_RSS_KEY_SZ)
#define NFP_NET_CFG_RSS_ITBL_SZ 0x80
/*
* 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)
* @NFP_NET_CFG_TXR_SZ: Per TX ring ring size (1B entries)
* @NFP_NET_CFG_TXR_VEC: Per TX ring MSI-X table entry (1B entries)
* @NFP_NET_CFG_TXR_PRIO: Per TX ring priority (1B entries)
* @NFP_NET_CFG_TXR_IRQ_MOD: Per TX ring interrupt moderation (4B entries)
*/
#define NFP_NET_CFG_TXR_BASE 0x0200
#define NFP_NET_CFG_TXR_ADDR(_x) (NFP_NET_CFG_TXR_BASE + ((_x) * 0x8))
#define NFP_NET_CFG_TXR_WB_ADDR(_x) (NFP_NET_CFG_TXR_BASE + 0x200 + \
((_x) * 0x8))
#define NFP_NET_CFG_TXR_SZ(_x) (NFP_NET_CFG_TXR_BASE + 0x400 + (_x))
#define NFP_NET_CFG_TXR_VEC(_x) (NFP_NET_CFG_TXR_BASE + 0x440 + (_x))
#define NFP_NET_CFG_TXR_PRIO(_x) (NFP_NET_CFG_TXR_BASE + 0x480 + (_x))
#define NFP_NET_CFG_TXR_IRQ_MOD(_x) (NFP_NET_CFG_TXR_BASE + 0x500 + \
((_x) * 0x4))
/*
* RX ring configuration (0x0800 - 0x0c00)
* @NFP_NET_CFG_RXR_BASE: Base offset for RX ring configuration
* @NFP_NET_CFG_RXR_ADDR: Per TX ring DMA address (8B entries)
* @NFP_NET_CFG_RXR_SZ: Per TX ring ring size (1B entries)
* @NFP_NET_CFG_RXR_VEC: Per TX ring MSI-X table entry (1B entries)
* @NFP_NET_CFG_RXR_PRIO: Per TX ring priority (1B entries)
* @NFP_NET_CFG_RXR_IRQ_MOD: Per TX ring interrupt moderation (4B entries)
*/
#define NFP_NET_CFG_RXR_BASE 0x0800
#define NFP_NET_CFG_RXR_ADDR(_x) (NFP_NET_CFG_RXR_BASE + ((_x) * 0x8))
#define NFP_NET_CFG_RXR_SZ(_x) (NFP_NET_CFG_RXR_BASE + 0x200 + (_x))
#define NFP_NET_CFG_RXR_VEC(_x) (NFP_NET_CFG_RXR_BASE + 0x240 + (_x))
#define NFP_NET_CFG_RXR_PRIO(_x) (NFP_NET_CFG_RXR_BASE + 0x280 + (_x))
#define NFP_NET_CFG_RXR_IRQ_MOD(_x) (NFP_NET_CFG_RXR_BASE + 0x300 + \
((_x) * 0x4))
/*
* 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
* corresponding entry is enabled. If the FW generates an interrupt,
* it writes a cause into the corresponding field. This also masks
* the MSI-X entry and the host driver must clear the register to
* re-enable the interrupt.
*/
#define NFP_NET_CFG_ICR_BASE 0x0c00
#define NFP_NET_CFG_ICR(_x) (NFP_NET_CFG_ICR_BASE + (_x))
#define NFP_NET_CFG_ICR_UNMASKED 0x0
#define NFP_NET_CFG_ICR_RXTX 0x1
#define NFP_NET_CFG_ICR_LSC 0x2
/*
* General device stats (0x0d00 - 0x0d90)
* all counters are 64bit.
*/
#define NFP_NET_CFG_STATS_BASE 0x0d00
#define NFP_NET_CFG_STATS_RX_DISCARDS (NFP_NET_CFG_STATS_BASE + 0x00)
#define NFP_NET_CFG_STATS_RX_ERRORS (NFP_NET_CFG_STATS_BASE + 0x08)
#define NFP_NET_CFG_STATS_RX_OCTETS (NFP_NET_CFG_STATS_BASE + 0x10)
#define NFP_NET_CFG_STATS_RX_UC_OCTETS (NFP_NET_CFG_STATS_BASE + 0x18)
#define NFP_NET_CFG_STATS_RX_MC_OCTETS (NFP_NET_CFG_STATS_BASE + 0x20)
#define NFP_NET_CFG_STATS_RX_BC_OCTETS (NFP_NET_CFG_STATS_BASE + 0x28)
#define NFP_NET_CFG_STATS_RX_FRAMES (NFP_NET_CFG_STATS_BASE + 0x30)
#define NFP_NET_CFG_STATS_RX_MC_FRAMES (NFP_NET_CFG_STATS_BASE + 0x38)
#define NFP_NET_CFG_STATS_RX_BC_FRAMES (NFP_NET_CFG_STATS_BASE + 0x40)
#define NFP_NET_CFG_STATS_TX_DISCARDS (NFP_NET_CFG_STATS_BASE + 0x48)
#define NFP_NET_CFG_STATS_TX_ERRORS (NFP_NET_CFG_STATS_BASE + 0x50)
#define NFP_NET_CFG_STATS_TX_OCTETS (NFP_NET_CFG_STATS_BASE + 0x58)
#define NFP_NET_CFG_STATS_TX_UC_OCTETS (NFP_NET_CFG_STATS_BASE + 0x60)
#define NFP_NET_CFG_STATS_TX_MC_OCTETS (NFP_NET_CFG_STATS_BASE + 0x68)
#define NFP_NET_CFG_STATS_TX_BC_OCTETS (NFP_NET_CFG_STATS_BASE + 0x70)
#define NFP_NET_CFG_STATS_TX_FRAMES (NFP_NET_CFG_STATS_BASE + 0x78)
#define NFP_NET_CFG_STATS_TX_MC_FRAMES (NFP_NET_CFG_STATS_BASE + 0x80)
#define NFP_NET_CFG_STATS_TX_BC_FRAMES (NFP_NET_CFG_STATS_BASE + 0x88)
/*
* 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_TXR_STATS_BASE 0x1000
#define NFP_NET_CFG_TXR_STATS(_x) (NFP_NET_CFG_TXR_STATS_BASE + \
((_x) * 0x10))
#define NFP_NET_CFG_RXR_STATS_BASE 0x1400
#define NFP_NET_CFG_RXR_STATS(_x) (NFP_NET_CFG_RXR_STATS_BASE + \
((_x) * 0x10))
#endif /* _NFP_NET_CTRL_H_ */
/*
* Local variables:
* c-file-style: "Linux"
* indent-tabs-mode: t
* End:
*/
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