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74d7b9a832
freebsd/sys/dev/et/if_etreg.h
Pyun YongHyeon 5d384a0de9 Announce flow control ability to PHY driver and enable RX flow 
control.  Controller does not automatically generate pause frames
based on number of available RX buffers so it's very hard to
know when driver should generate XON frame in time.  The only
mechanism driver can detect low number of RX buffer condition is
ET_INTR_RXRING0_LOW or ET_INTR_RXRING1_LOW interrupt.  This
interrupt is generated whenever controller notices the number of
available RX buffers are lower than pre-programmed value(
ET_RX_RING0_MINCNT and ET_RX_RING1_MINCNT register).  This scheme
does not provide a way to detect when controller sees enough number
of RX buffers again such that efficient generation of XON/XOFF
frame is not easy.

While here, add more flow control related register definition.
2011-12-09 19:10:38 +00:00

419 lines
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/*-
* Copyright (c) 2007 Sepherosa Ziehau. All rights reserved.
*
* This code is derived from software contributed to The DragonFly Project
* by Sepherosa Ziehau <sepherosa@gmail.com>
*
* 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 DragonFly Project 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 HOLDERS 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.
*
* $DragonFly: src/sys/dev/netif/et/if_etreg.h,v 1.3 2007/10/23 14:28:42 sephe Exp $
* $FreeBSD$
*/
#ifndef _IF_ETREG_H
#define _IF_ETREG_H
#define ET_MEM_TXSIZE_EX 182
#define ET_MEM_RXSIZE_MIN 608
#define ET_MEM_RXSIZE_DEFAULT 11216
#define ET_MEM_SIZE 16384
#define ET_MEM_UNIT 16
/*
* PCI registers
*
* ET_PCIV_ACK_LATENCY_{128,256} are from
* PCI EXPRESS BASE SPECIFICATION, REV. 1.0a, Table 3-5
*
* ET_PCIV_REPLAY_TIMER_{128,256} are from
* PCI EXPRESS BASE SPECIFICATION, REV. 1.0a, Table 3-4
*/
#define ET_PCIR_DEVICE_CAPS 0x4C
#define ET_PCIM_DEVICE_CAPS_MAX_PLSZ 0x7 /* Max playload size */
#define ET_PCIV_DEVICE_CAPS_PLSZ_128 0x0
#define ET_PCIV_DEVICE_CAPS_PLSZ_256 0x1
#define ET_PCIR_DEVICE_CTRL 0x50
#define ET_PCIM_DEVICE_CTRL_MAX_RRSZ 0x7000 /* Max read request size */
#define ET_PCIV_DEVICE_CTRL_RRSZ_2K 0x4000
#define ET_PCIR_MAC_ADDR0 0xA4
#define ET_PCIR_MAC_ADDR1 0xA8
#define ET_PCIR_EEPROM_STATUS 0xB2 /* XXX undocumented */
#define ET_PCIM_EEPROM_STATUS_ERROR 0x4C
#define ET_PCIR_ACK_LATENCY 0xC0
#define ET_PCIV_ACK_LATENCY_128 237
#define ET_PCIV_ACK_LATENCY_256 416
#define ET_PCIR_REPLAY_TIMER 0xC2
#define ET_REPLAY_TIMER_RX_L0S_ADJ 250 /* XXX infered from default */
#define ET_PCIV_REPLAY_TIMER_128 (711 + ET_REPLAY_TIMER_RX_L0S_ADJ)
#define ET_PCIV_REPLAY_TIMER_256 (1248 + ET_REPLAY_TIMER_RX_L0S_ADJ)
#define ET_PCIR_L0S_L1_LATENCY 0xCF
/*
* CSR
*/
#define ET_TXQUEUE_START 0x0000
#define ET_TXQUEUE_END 0x0004
#define ET_RXQUEUE_START 0x0008
#define ET_RXQUEUE_END 0x000C
#define ET_QUEUE_ADDR(addr) (((addr) / ET_MEM_UNIT) - 1)
#define ET_QUEUE_ADDR_START 0
#define ET_QUEUE_ADDR_END ET_QUEUE_ADDR(ET_MEM_SIZE)
#define ET_PM 0x0010
#define EM_PM_GIGEPHY_ENB 0x00000001
#define ET_PM_SYSCLK_GATE 0x00000008
#define ET_PM_TXCLK_GATE 0x00000010
#define ET_PM_RXCLK_GATE 0x00000020
#define ET_PM_PHY_SW_COMA 0x00000040
#define ET_INTR_STATUS 0x0018
#define ET_INTR_MASK 0x001C
#define ET_SWRST 0x0028
#define ET_SWRST_TXDMA 0x00000001
#define ET_SWRST_RXDMA 0x00000002
#define ET_SWRST_TXMAC 0x00000004
#define ET_SWRST_RXMAC 0x00000008
#define ET_SWRST_MAC 0x00000010
#define ET_SWRST_MAC_STAT 0x00000020
#define ET_SWRST_MMC 0x00000040
#define ET_SWRST_SELFCLR_DISABLE 0x80000000
#define ET_MSI_CFG 0x0030
#define ET_LOOPBACK 0x0034
#define ET_TIMER 0x0038
#define ET_TXDMA_CTRL 0x1000
#define ET_TXDMA_CTRL_HALT 0x00000001
#define ET_TXDMA_CTRL_CACHE_THR_MASK 0x000000F0
#define ET_TXDMA_CTRL_SINGLE_EPKT 0x00000100 /* ??? */
#define ET_TX_RING_HI 0x1004
#define ET_TX_RING_LO 0x1008
#define ET_TX_RING_CNT 0x100C
#define ET_TX_STATUS_HI 0x101C
#define ET_TX_STATUS_LO 0x1020
#define ET_TX_READY_POS 0x1024
#define ET_TX_READY_POS_INDEX_MASK 0x000003FF
#define ET_TX_READY_POS_WRAP 0x00000400
#define ET_TX_DONE_POS 0x1060
#define ET_TX_DONE_POS_INDEX_MASK 0x0000003FF
#define ET_TX_DONE_POS_WRAP 0x000000400
#define ET_RXDMA_CTRL 0x2000
#define ET_RXDMA_CTRL_HALT 0x00000001
#define ET_RXDMA_CTRL_RING0_SIZE_MASK 0x00000300
#define ET_RXDMA_CTRL_RING0_128 0x00000000 /* 127 */
#define ET_RXDMA_CTRL_RING0_256 0x00000100 /* 255 */
#define ET_RXDMA_CTRL_RING0_512 0x00000200 /* 511 */
#define ET_RXDMA_CTRL_RING0_1024 0x00000300 /* 1023 */
#define ET_RXDMA_CTRL_RING0_ENABLE 0x00000400
#define ET_RXDMA_CTRL_RING1_SIZE_MASK 0x00001800
#define ET_RXDMA_CTRL_RING1_2048 0x00000000 /* 2047 */
#define ET_RXDMA_CTRL_RING1_4096 0x00000800 /* 4095 */
#define ET_RXDMA_CTRL_RING1_8192 0x00001000 /* 8191 */
#define ET_RXDMA_CTRL_RING1_16384 0x00001800 /* 16383 (9022?) */
#define ET_RXDMA_CTRL_RING1_ENABLE 0x00002000
#define ET_RXDMA_CTRL_HALTED 0x00020000
#define ET_RX_STATUS_LO 0x2004
#define ET_RX_STATUS_HI 0x2008
#define ET_RX_INTR_NPKTS 0x200C
#define ET_RX_INTR_DELAY 0x2010
#define ET_RXSTAT_LO 0x2020
#define ET_RXSTAT_HI 0x2024
#define ET_RXSTAT_CNT 0x2028
#define ET_RXSTAT_POS 0x2030
#define ET_RXSTAT_POS_INDEX_MASK 0x00000FFF
#define ET_RXSTAT_POS_WRAP 0x00001000
#define ET_RXSTAT_MINCNT 0x2038
#define ET_RX_RING0_LO 0x203C
#define ET_RX_RING0_HI 0x2040
#define ET_RX_RING0_CNT 0x2044
#define ET_RX_RING0_POS 0x204C
#define ET_RX_RING0_POS_INDEX_MASK 0x000003FF
#define ET_RX_RING0_POS_WRAP 0x00000400
#define ET_RX_RING0_MINCNT 0x2054
#define ET_RX_RING1_LO 0x2058
#define ET_RX_RING1_HI 0x205C
#define ET_RX_RING1_CNT 0x2060
#define ET_RX_RING1_POS 0x2068
#define ET_RX_RING1_POS_INDEX 0x000003FF
#define ET_RX_RING1_POS_WRAP 0x00000400
#define ET_RX_RING1_MINCNT 0x2070
#define ET_TXMAC_CTRL 0x3000
#define ET_TXMAC_CTRL_ENABLE 0x00000001
#define ET_TXMAC_CTRL_FC_DISABLE 0x00000008
#define ET_TXMAC_FLOWCTRL 0x3010
#define ET_TXMAC_FLOWCTRL_CFPT_MASK 0x0000FFFF
#define ET_TXMAC_FLOWCTRL_CFEP_MASK 0xFFFF0000
#define ET_TXMAC_FLOWCTRL_CFPT_SHIFT 0
#define ET_TXMAC_BP_CTRL 0x3020
#define ET_TXMAC_BP_CTRL_XONXOFF 0x00000001
#define ET_TXMAC_BP_CTRL_REQ 0x00000002
#define ET_RXMAC_CTRL 0x4000
#define ET_RXMAC_CTRL_ENABLE 0x00000001
#define ET_RXMAC_CTRL_NO_PKTFILT 0x00000004
#define ET_RXMAC_CTRL_WOL_DISABLE 0x00000008
#define ET_WOL_CRC 0x4004
#define ET_WOL_SA_LO 0x4010
#define ET_WOL_SA_HI 0x4014
#define ET_WOL_MASK 0x4018
#define ET_UCAST_FILTADDR1 0x4068
#define ET_UCAST_FILTADDR2 0x406C
#define ET_UCAST_FILTADDR3 0x4070
#define ET_MULTI_HASH 0x4074
#define ET_PKTFILT 0x4084
#define ET_PKTFILT_BCAST 0x00000001
#define ET_PKTFILT_MCAST 0x00000002
#define ET_PKTFILT_UCAST 0x00000004
#define ET_PKTFILT_FRAG 0x00000008
#define ET_PKTFILT_MINLEN_MASK 0x007F0000
#define ET_PKTFILT_MINLEN_SHIFT 16
#define ET_RXMAC_MC_SEGSZ 0x4088
#define ET_RXMAC_MC_SEGSZ_ENABLE 0x00000001
#define ET_RXMAC_MC_SEGSZ_FC 0x00000002
#define ET_RXMAC_MC_SEGSZ_MAX_MASK 0x000003FC
#define ET_RXMAC_SEGSZ(segsz) ((segsz) / ET_MEM_UNIT)
#define ET_RXMAC_CUT_THRU_FRMLEN 8074
#define ET_RXMAC_MC_WATERMARK 0x408C
#define ET_RXMAC_SPACE_AVL 0x4094
#define ET_RXMAC_MGT 0x4098
#define ET_RXMAC_MGT_PASS_ECRC 0x00000010
#define ET_RXMAC_MGT_PASS_ELEN 0x00000020
#define ET_RXMAC_MGT_PASS_ETRUNC 0x00010000
#define ET_RXMAC_MGT_CHECK_PKT 0x00020000
#define ET_MAC_CFG1 0x5000
#define ET_MAC_CFG1_TXEN 0x00000001
#define ET_MAC_CFG1_SYNC_TXEN 0x00000002
#define ET_MAC_CFG1_RXEN 0x00000004
#define ET_MAC_CFG1_SYNC_RXEN 0x00000008
#define ET_MAC_CFG1_TXFLOW 0x00000010
#define ET_MAC_CFG1_RXFLOW 0x00000020
#define ET_MAC_CFG1_LOOPBACK 0x00000100
#define ET_MAC_CFG1_RST_TXFUNC 0x00010000
#define ET_MAC_CFG1_RST_RXFUNC 0x00020000
#define ET_MAC_CFG1_RST_TXMC 0x00040000
#define ET_MAC_CFG1_RST_RXMC 0x00080000
#define ET_MAC_CFG1_SIM_RST 0x40000000
#define ET_MAC_CFG1_SOFT_RST 0x80000000
#define ET_MAC_CFG2 0x5004
#define ET_MAC_CFG2_FDX 0x00000001
#define ET_MAC_CFG2_CRC 0x00000002
#define ET_MAC_CFG2_PADCRC 0x00000004
#define ET_MAC_CFG2_LENCHK 0x00000010
#define ET_MAC_CFG2_BIGFRM 0x00000020
#define ET_MAC_CFG2_MODE_MII 0x00000100
#define ET_MAC_CFG2_MODE_GMII 0x00000200
#define ET_MAC_CFG2_PREAMBLE_LEN_MASK 0x0000F000
#define ET_MAC_CFG2_PREAMBLE_LEN_SHIFT 12
#define ET_IPG 0x5008
#define ET_IPG_B2B_MASK 0x0000007F
#define ET_IPG_MINIFG_MASK 0x0000FF00
#define ET_IPG_NONB2B_2_MASK 0x007F0000
#define ET_IPG_NONB2B_1_MASK 0x7F000000
#define ET_IPG_B2B_SHIFT 0
#define ET_IPG_MINIFG_SHIFT 8
#define ET_IPG_NONB2B_2_SHIFT 16
#define ET_IPG_NONB2B_1_SHIFT 24
#define ET_MAC_HDX 0x500C
#define ET_MAC_HDX_COLLWIN_MASK 0x000003FF
#define ET_MAC_HDX_REXMIT_MAX_MASK 0x0000F000
#define ET_MAC_HDX_EXC_DEFER 0x00010000
#define ET_MAC_HDX_NOBACKOFF 0x00020000
#define ET_MAC_HDX_BP_NOBACKOFF 0x00040000
#define ET_MAC_HDX_ALT_BEB 0x00080000
#define ET_MAC_HDX_ALT_BEB_TRUNC_MASK 0x00F00000
#define ET_MAC_HDX_COLLWIN_SHIFT 0
#define ET_MAC_HDX_REXMIT_MAX_SHIFT 12
#define ET_MAC_HDX_ALT_BEB_TRUNC_SHIFT 20
#define ET_MAX_FRMLEN 0x5010
#define ET_MII_CFG 0x5020
#define ET_MII_CFG_CLKRST 0x00000007
#define ET_MII_CFG_PREAMBLE_SUP 0x00000010
#define ET_MII_CFG_SCAN_AUTOINC 0x00000020
#define ET_MII_CFG_RST 0x80000000
#define ET_MII_CMD 0x5024
#define ET_MII_CMD_READ 0x00000001
#define ET_MII_ADDR 0x5028
#define ET_MII_ADDR_REG_MASK 0x0000001F
#define ET_MII_ADDR_PHY_MASK 0x00001F00
#define ET_MII_ADDR_REG_SHIFT 0
#define ET_MII_ADDR_PHY_SHIFT 8
#define ET_MII_CTRL 0x502C
#define ET_MII_CTRL_VALUE_MASK 0x0000FFFF
#define ET_MII_CTRL_VALUE_SHIFT 0
#define ET_MII_STAT 0x5030
#define ET_MII_STAT_VALUE_MASK 0x0000FFFF
#define ET_MII_IND 0x5034
#define ET_MII_IND_BUSY 0x00000001
#define ET_MII_IND_INVALID 0x00000004
#define ET_MAC_CTRL 0x5038
#define ET_MAC_CTRL_MODE_MII 0x01000000
#define ET_MAC_CTRL_LHDX 0x02000000
#define ET_MAC_CTRL_GHDX 0x04000000
#define ET_MAC_ADDR1 0x5040
#define ET_MAC_ADDR2 0x5044
/* MAC statistics counters. */
#define ET_STAT_PKTS_64 0x6080
#define ET_STAT_PKTS_65_127 0x6084
#define ET_STAT_PKTS_128_255 0x6088
#define ET_STAT_PKTS_256_511 0x608C
#define ET_STAT_PKTS_512_1023 0x6090
#define ET_STAT_PKTS_1024_1518 0x6094
#define ET_STAT_PKTS_1519_1522 0x6098
#define ET_STAT_RX_BYTES 0x609C
#define ET_STAT_RX_FRAMES 0x60A0
#define ET_STAT_RX_CRC_ERR 0x60A4
#define ET_STAT_RX_MCAST 0x60A8
#define ET_STAT_RX_BCAST 0x60AC
#define ET_STAT_RX_CTL 0x60B0
#define ET_STAT_RX_PAUSE 0x60B4
#define ET_STAT_RX_UNKNOWN_CTL 0x60B8
#define ET_STAT_RX_ALIGN_ERR 0x60BC
#define ET_STAT_RX_LEN_ERR 0x60C0
#define ET_STAT_RX_CODE_ERR 0x60C4
#define ET_STAT_RX_CS_ERR 0x60C8
#define ET_STAT_RX_RUNT 0x60CC
#define ET_STAT_RX_OVERSIZE 0x60D0
#define ET_STAT_RX_FRAG 0x60D4
#define ET_STAT_RX_JABBER 0x60D8
#define ET_STAT_RX_DROP 0x60DC
#define ET_STAT_TX_BYTES 0x60E0
#define ET_STAT_TX_FRAMES 0x60E4
#define ET_STAT_TX_MCAST 0x60E8
#define ET_STAT_TX_BCAST 0x60EC
#define ET_STAT_TX_PAUSE 0x60F0
#define ET_STAT_TX_DEFER 0x60F4
#define ET_STAT_TX_EXCESS_DEFER 0x60F8
#define ET_STAT_TX_SINGLE_COL 0x60FC
#define ET_STAT_TX_MULTI_COL 0x6100
#define ET_STAT_TX_LATE_COL 0x6104
#define ET_STAT_TX_EXCESS_COL 0x6108
#define ET_STAT_TX_TOTAL_COL 0x610C
#define ET_STAT_TX_PAUSE_HONOR 0x6110
#define ET_STAT_TX_DROP 0x6114
#define ET_STAT_TX_JABBER 0x6118
#define ET_STAT_TX_CRC_ERR 0x611C
#define ET_STAT_TX_CTL 0x6120
#define ET_STAT_TX_OVERSIZE 0x6124
#define ET_STAT_TX_UNDERSIZE 0x6128
#define ET_STAT_TX_FRAG 0x612C
#define ET_MMC_CTRL 0x7000
#define ET_MMC_CTRL_ENABLE 0x00000001
#define ET_MMC_CTRL_ARB_DISABLE 0x00000002
#define ET_MMC_CTRL_RXMAC_DISABLE 0x00000004
#define ET_MMC_CTRL_TXMAC_DISABLE 0x00000008
#define ET_MMC_CTRL_TXDMA_DISABLE 0x00000010
#define ET_MMC_CTRL_RXDMA_DISABLE 0x00000020
#define ET_MMC_CTRL_FORCE_CE 0x00000040
/*
* Interrupts
*/
#define ET_INTR_TXDMA 0x00000008
#define ET_INTR_TXDMA_ERROR 0x00000010
#define ET_INTR_RXDMA 0x00000020
#define ET_INTR_RXRING0_LOW 0x00000040
#define ET_INTR_RXRING1_LOW 0x00000080
#define ET_INTR_RXSTAT_LOW 0x00000100
#define ET_INTR_RXDMA_ERROR 0x00000200
#define ET_INTR_TIMER 0x00004000
#define ET_INTR_WOL 0x00008000
#define ET_INTR_PHY 0x00010000
#define ET_INTR_TXMAC 0x00020000
#define ET_INTR_RXMAC 0x00040000
#define ET_INTR_MAC_STATS 0x00080000
#define ET_INTR_SLAVE_TO 0x00100000
#define ET_INTRS \
(ET_INTR_TXDMA | ET_INTR_RXDMA | ET_INTR_TIMER | \
ET_INTR_TXDMA_ERROR | ET_INTR_RXDMA_ERROR)
/*
* RX ring position uses same layout
*/
#define ET_RX_RING_POS_INDEX_MASK 0x000003FF
#define ET_RX_RING_POS_WRAP 0x00000400
/*
* PCI IDs
*/
#define PCI_VENDOR_LUCENT 0x11C1
#define PCI_PRODUCT_LUCENT_ET1310 0xED00 /* ET1310 10/100/1000M Ethernet */
#define PCI_PRODUCT_LUCENT_ET1310_FAST 0xED01 /* ET1310 10/100M Ethernet */
#endif /* !_IF_ETREG_H */
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