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/*-
* Copyright (c) 2006 Sam Leffler, Errno Consulting
* 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,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
* redistribution must be conditioned upon including a substantially
* similar Disclaimer requirement for further binary redistribution.
*
* NO WARRANTY
* 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 NONINFRINGEMENT, MERCHANTIBILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
*
* $FreeBSD: release/9.1.0/sys/arm/xscale/ixp425/if_npereg.h 186419 2008-12-23 04:49:01Z sam $
*/
/*
* Copyright (c) 2001-2005, Intel Corporation.
* 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 Intel Corporation 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 OWNER 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.
*/
#ifndef ARM_XSCALE_IF_NPEREG_H
#define ARM_XSCALE_IF_NPEREG_H
/*
* NPE/NPE tx/rx descriptor format. This is just the area
* shared with ucode running in the NPE; the driver-specific
* state is defined in the driver. The shared area must be
* cacheline-aligned. We allocate NPE_MAXSEG "descriptors"
* per buffer; this allows us to do minimal s/g. The number
* of descriptors can be expanded but doing so uses memory
* so should be done with care.
*
* The driver sets up buffers in uncached memory.
*/
#define NPE_MAXSEG 3 /* empirically selected */
struct npehwbuf {
struct { /* NPE shared area, cacheline aligned */
uint32_t next; /* phys addr of next segment */
uint32_t len; /* buffer/segment length (bytes) */
uint32_t data; /* phys addr of data segment */
uint32_t pad[5]; /* pad to cacheline */
} ix_ne[NPE_MAXSEG];
};
#define NPE_FRAME_SIZE_DEFAULT 1536
#define NPE_FRAME_SIZE_MAX (65536-64)
#define NPE_FRAME_SIZE_MIN 64
/*
* Queue Manager-related definitions.
*
* These define the layout of 32-bit Q entries passed
* between the host cpu and the NPE's.
*/
#define NPE_QM_Q_NPE(e) (((e)>>0)&0x3) /* NPE ID */
#define NPE_QM_Q_PORT(e) (((e)>>3)&0x1) /* Port ID */
#define NPE_QM_Q_PRIO(e) (((e)>>0)&0x3) /* 802.1d priority */
#define NPE_QM_Q_ADDR(e) ((e)&0xfffffffe0) /* phys address */
/*
* Host->NPE requests written to the shared mailbox.
* The NPE writes the same value back as an ACK.
*/
#define NPE_GETSTATUS 0x00 /* get firmware revision */
#define NPE_SETPORTADDRESS 0x01 /* set port id and mac address */
#define NPE_GETMACADDRDB 0x02 /* upload filter database */
#define NPE_SETMACADDRDB 0x03 /* download filter database */
#define NPE_GETSTATS 0x04 /* get statistics */
#define NPE_RESETSTATS 0x05 /* reset stats + return result */
#define NPE_SETMAXFRAME 0x06 /* configure max tx/rx frame lengths */
#define NPE_SETRXTAGMODE 0x07 /* configure VLAN rx operating mode */
#define NPE_SETDEFRXVID 0x08 /* set def VLAN tag + traffic class */
#define NPE_SETRXQOSENTRY 0x0b /* map user pri -> QoS class+rx qid */
#define NPE_SETFIREWALLMODE 0x0e /* config firewall services */
#define NPE_SETLOOPBACK 0x12 /* enable/disable loopback */
/* ... XXX more */
#define NPE_MAC_MSGID_SHL 24
#define NPE_MAC_PORTID_SHL 16
/*
* MAC register definitions; see section
* 15.2 of the Intel Developers Manual.
*/
#define NPE_MAC_TX_CNTRL1 0x000
#define NPE_MAC_TX_CNTRL2 0x004
#define NPE_MAC_RX_CNTRL1 0x010
#define NPE_MAC_RX_CNTRL2 0x014
#define NPE_MAC_RANDOM_SEED 0x020
#define NPE_MAC_THRESH_P_EMPTY 0x030
#define NPE_MAC_THRESH_P_FULL 0x038
#define NPE_MAC_BUF_SIZE_TX 0x040
#define NPE_MAC_TX_DEFER 0x050
#define NPE_MAC_RX_DEFER 0x054
#define NPE_MAC_TX_TWO_DEFER_1 0x060
#define NPE_MAC_TX_TWO_DEFER_2 0x064
#define NPE_MAC_SLOT_TIME 0x070
#define NPE_MAC_MDIO_CMD_1 0x080
#define NPE_MAC_MDIO_CMD_2 0x084
#define NPE_MAC_MDIO_CMD_3 0x088
#define NPE_MAC_MDIO_CMD_4 0x08c
#define NPE_MAC_MDIO_STS_1 0x090
#define NPE_MAC_MDIO_STS_2 0x094
#define NPE_MAC_MDIO_STS_3 0x098
#define NPE_MAC_MDIO_STS_4 0x09c
#define NPE_MAC_ADDR_MASK_1 0x0A0
#define NPE_MAC_ADDR_MASK_2 0x0A4
#define NPE_MAC_ADDR_MASK_3 0x0A8
#define NPE_MAC_ADDR_MASK_4 0x0AC
#define NPE_MAC_ADDR_MASK_5 0x0B0
#define NPE_MAC_ADDR_MASK_6 0x0B4
#define NPE_MAC_ADDR_1 0x0C0
#define NPE_MAC_ADDR_2 0x0C4
#define NPE_MAC_ADDR_3 0x0C8
#define NPE_MAC_ADDR_4 0x0CC
#define NPE_MAC_ADDR_5 0x0D0
#define NPE_MAC_ADDR_6 0x0D4
#define NPE_MAC_INT_CLK_THRESH 0x0E0
#define NPE_MAC_UNI_ADDR_1 0x0F0
#define NPE_MAC_UNI_ADDR_2 0x0F4
#define NPE_MAC_UNI_ADDR_3 0x0F8
#define NPE_MAC_UNI_ADDR_4 0x0FC
#define NPE_MAC_UNI_ADDR_5 0x100
#define NPE_MAC_UNI_ADDR_6 0x104
#define NPE_MAC_CORE_CNTRL 0x1FC
#define NPE_MAC_ADDR_MASK(i) (NPE_MAC_ADDR_MASK_1 + ((i)<<2))
#define NPE_MAC_ADDR(i) (NPE_MAC_ADDR_1 + ((i)<<2))
#define NPE_MAC_UNI_ADDR(i) (NPE_MAC_UNI_ADDR_1 + ((i)<<2))
/*
* Bit definitions
*/
/* TX Control Register 1*/
#define NPE_TX_CNTRL1_TX_EN 0x01 /* enable TX engine */
#define NPE_TX_CNTRL1_DUPLEX 0x02 /* select half duplex */
#define NPE_TX_CNTRL1_RETRY 0x04 /* auto-retry on collision */
#define NPE_TX_CNTRL1_PAD_EN 0x08 /* pad frames <64 bytes */
#define NPE_TX_CNTRL1_FCS_EN 0x10 /* append FCS */
#define NPE_TX_CNTRL1_2DEFER 0x20 /* select 2-part deferral */
#define NPE_TX_CNTRL1_RMII 0x40
/* TX Control Register 2 */
#define NPE_TX_CNTRL2_RETRIES_MASK 0xf /* max retry count */
/* RX Control Register 1 */
#define NPE_RX_CNTRL1_RX_EN 0x01 /* enable RX engine */
#define NPE_RX_CNTRL1_PADSTRIP_EN 0x02 /* strip frame padding */
#define NPE_RX_CNTRL1_CRC_EN 0x04 /* include CRC in RX frame */
#define NPE_RX_CNTRL1_PAUSE_EN 0x08 /* detect Pause frames */
#define NPE_RX_CNTRL1_LOOP_EN 0x10 /* loopback tx/rx */
#define NPE_RX_CNTRL1_ADDR_FLTR_EN 0x20 /* enable address filtering */
#define NPE_RX_CNTRL1_RX_RUNT_EN 0x40 /* enable RX of runt frames */
#define NPE_RX_CNTRL1_BCAST_DIS 0x80 /* discard broadcast frames */
/* RX Control Register 2 */
#define NPE_RX_CNTRL2_DEFER_EN 0x01
/* Core Control Register */
#define NPE_CORE_RESET 0x01 /* MAC reset state */
#define NPE_CORE_RX_FIFO_FLUSH 0x02 /* flush RX FIFO */
#define NPE_CORE_TX_FIFO_FLUSH 0x04 /* flush TX FIFO */
#define NPE_CORE_SEND_JAM 0x08 /* send JAM on packet RX */
#define NPE_CORE_MDC_EN 0x10 /* IXP42X drives MDC clock */
/*
* Stat block returned by NPE with NPE_GETSTATS msg.
*/
struct npestats {
uint32_t dot3StatsAlignmentErrors;
uint32_t dot3StatsFCSErrors;
uint32_t dot3StatsInternalMacReceiveErrors;
uint32_t RxOverrunDiscards;
uint32_t RxLearnedEntryDiscards;
uint32_t RxLargeFramesDiscards;
uint32_t RxSTPBlockedDiscards;
uint32_t RxVLANTypeFilterDiscards;
uint32_t RxVLANIdFilterDiscards;
uint32_t RxInvalidSourceDiscards;
uint32_t RxBlackListDiscards;
uint32_t RxWhiteListDiscards;
uint32_t RxUnderflowEntryDiscards;
uint32_t dot3StatsSingleCollisionFrames;
uint32_t dot3StatsMultipleCollisionFrames;
uint32_t dot3StatsDeferredTransmissions;
uint32_t dot3StatsLateCollisions;
uint32_t dot3StatsExcessiveCollisions;
uint32_t dot3StatsInternalMacTransmitErrors;
uint32_t dot3StatsCarrierSenseErrors;
uint32_t TxLargeFrameDiscards;
uint32_t TxVLANIdFilterDiscards;
};
/*
* Default values
*/
#define NPE_MAC_INT_CLK_THRESH_DEFAULT 0x1
#define NPE_MAC_RESET_DELAY 1
/* This value applies to RMII */
#define NPE_MAC_SLOT_TIME_RMII_DEFAULT 0xFF
/*
* MII definitions - these have been verified against the LXT971 and LXT972 PHYs
*/
#define NPE_MII_REG_SHL 16
#define NPE_MII_ADDR_SHL 21
/* NB: shorthands for mii bus mdio routines */
#define NPE_MAC_MDIO_CMD NPE_MAC_MDIO_CMD_1
#define NPE_MAC_MDIO_STS NPE_MAC_MDIO_STS_1
#define NPE_MII_GO (1<<31)
#define NPE_MII_WRITE (1<<26)
#define NPE_MII_TIMEOUT_10TH_SECS 5
#define NPE_MII_10TH_SEC_IN_MILLIS 100
#define NPE_MII_READ_FAIL (1<<31)
#define NPE_MII_PHY_DEF_DELAY 300 /* max delay before link up, etc. */
#define NPE_MII_PHY_NO_DELAY 0x0 /* do not delay */
#define NPE_MII_PHY_NULL 0xff /* PHY is not present */
#define NPE_MII_PHY_DEF_ADDR 0x0 /* default PHY's logical address */
/* Register definition */
#define NPE_MII_CTRL_REG 0x0 /* Control Register */
#define NPE_MII_STAT_REG 0x1 /* Status Register */
#define NPE_MII_PHY_ID1_REG 0x2 /* PHY identifier 1 Register */
#define NPE_MII_PHY_ID2_REG 0x3 /* PHY identifier 2 Register */
#define NPE_MII_AN_ADS_REG 0x4 /* Auto-Negotiation */
/* Advertisement Register */
#define NPE_MII_AN_PRTN_REG 0x5 /* Auto-Negotiation */
/* partner ability Register */
#define NPE_MII_AN_EXP_REG 0x6 /* Auto-Negotiation */
/* Expansion Register */
#define NPE_MII_AN_NEXT_REG 0x7 /* Auto-Negotiation */
/* next-page transmit Register */
#endif /* ARM_XSCALE_IF_NPEREG_H */