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linux/drivers/net/cassini.h
Richard Mortimer 4e3dbdb139 cassini: Use local-mac-address prom property for Cassini MAC address 
Fallback on the local-mac-address prom property if the Cassini device
does not have an address programmed in the VPD ROM. This uses the same
technique as implemented by the sungem driver.

The problem was reported by Frans van Berckel using Debian kernel 2.6.34-7
on Sun Fire V440. udev was assigning a new eth<n> device name on each reboot
because the cassini driver was using a random MAC address.

Fix tested on 2.6.34-7 and 2.6.37 Sun Fire V440. Compile tested against
2.6.36 davem/sparc-2.6.git

Reported-by: Frans van Berckel <fberckel@xs4all.nl>
Tested-by: Frans van Berckel <fberckel@xs4all.nl>
Reviewed-by: Julian Calaby <julian.calaby@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Richard Mortimer <richm@oldelvet.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-06 11:50:30 -08:00

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/* $Id: cassini.h,v 1.16 2004/08/17 21:15:16 zaumen Exp $
* cassini.h: Definitions for Sun Microsystems Cassini(+) ethernet driver.
*
* Copyright (C) 2004 Sun Microsystems Inc.
* Copyright (c) 2003 Adrian Sun (asun@darksunrising.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
* vendor id: 0x108E (Sun Microsystems, Inc.)
* device id: 0xabba (Cassini)
* revision ids: 0x01 = Cassini
* 0x02 = Cassini rev 2
* 0x10 = Cassini+
* 0x11 = Cassini+ 0.2u
*
* vendor id: 0x100b (National Semiconductor)
* device id: 0x0035 (DP83065/Saturn)
* revision ids: 0x30 = Saturn B2
*
* rings are all offset from 0.
*
* there are two clock domains:
* PCI: 33/66MHz clock
* chip: 125MHz clock
*/
#ifndef _CASSINI_H
#define _CASSINI_H
/* cassini register map: 2M memory mapped in 32-bit memory space accessible as
* 32-bit words. there is no i/o port access. REG_ addresses are
* shared between cassini and cassini+. REG_PLUS_ addresses only
* appear in cassini+. REG_MINUS_ addresses only appear in cassini.
*/
#define CAS_ID_REV2 0x02
#define CAS_ID_REVPLUS 0x10
#define CAS_ID_REVPLUS02u 0x11
#define CAS_ID_REVSATURNB2 0x30
/** global resources **/
/* this register sets the weights for the weighted round robin arbiter. e.g.,
* if rx weight == 1 and tx weight == 0, rx == 2x tx transfer credit
* for its next turn to access the pci bus.
* map: 0x0 = x1, 0x1 = x2, 0x2 = x4, 0x3 = x8
* DEFAULT: 0x0, SIZE: 5 bits
*/
#define REG_CAWR 0x0004 /* core arbitration weight */
#define CAWR_RX_DMA_WEIGHT_SHIFT 0
#define CAWR_RX_DMA_WEIGHT_MASK 0x03 /* [0:1] */
#define CAWR_TX_DMA_WEIGHT_SHIFT 2
#define CAWR_TX_DMA_WEIGHT_MASK 0x0C /* [3:2] */
#define CAWR_RR_DIS 0x10 /* [4] */
/* if enabled, BIM can send bursts across PCI bus > cacheline size. burst
* sizes determined by length of packet or descriptor transfer and the
* max length allowed by the target.
* DEFAULT: 0x0, SIZE: 1 bit
*/
#define REG_INF_BURST 0x0008 /* infinite burst enable reg */
#define INF_BURST_EN 0x1 /* enable */
/* top level interrupts [0-9] are auto-cleared to 0 when the status
* register is read. second level interrupts [13 - 18] are cleared at
* the source. tx completion register 3 is replicated in [19 - 31]
* DEFAULT: 0x00000000, SIZE: 29 bits
*/
#define REG_INTR_STATUS 0x000C /* interrupt status register */
#define INTR_TX_INTME 0x00000001 /* frame w/ INT ME desc bit set
xferred from host queue to
TX FIFO */
#define INTR_TX_ALL 0x00000002 /* all xmit frames xferred into
TX FIFO. i.e.,
TX Kick == TX complete. if
PACED_MODE set, then TX FIFO
also empty */
#define INTR_TX_DONE 0x00000004 /* any frame xferred into tx
FIFO */
#define INTR_TX_TAG_ERROR 0x00000008 /* TX FIFO tag framing
corrupted. FATAL ERROR */
#define INTR_RX_DONE 0x00000010 /* at least 1 frame xferred
from RX FIFO to host mem.
RX completion reg updated.
may be delayed by recv
intr blanking. */
#define INTR_RX_BUF_UNAVAIL 0x00000020 /* no more receive buffers.
RX Kick == RX complete */
#define INTR_RX_TAG_ERROR 0x00000040 /* RX FIFO tag framing
corrupted. FATAL ERROR */
#define INTR_RX_COMP_FULL 0x00000080 /* no more room in completion
ring to post descriptors.
RX complete head incr to
almost reach RX complete
tail */
#define INTR_RX_BUF_AE 0x00000100 /* less than the
programmable threshold #
of free descr avail for
hw use */
#define INTR_RX_COMP_AF 0x00000200 /* less than the
programmable threshold #
of descr spaces for hw
use in completion descr
ring */
#define INTR_RX_LEN_MISMATCH 0x00000400 /* len field from MAC !=
len of non-reassembly pkt
from fifo during DMA or
header parser provides TCP
header and payload size >
MAC packet size.
FATAL ERROR */
#define INTR_SUMMARY 0x00001000 /* summary interrupt bit. this
bit will be set if an interrupt
generated on the pci bus. useful
when driver is polling for
interrupts */
#define INTR_PCS_STATUS 0x00002000 /* PCS interrupt status register */
#define INTR_TX_MAC_STATUS 0x00004000 /* TX MAC status register has at
least 1 unmasked interrupt set */
#define INTR_RX_MAC_STATUS 0x00008000 /* RX MAC status register has at
least 1 unmasked interrupt set */
#define INTR_MAC_CTRL_STATUS 0x00010000 /* MAC control status register has
at least 1 unmasked interrupt
set */
#define INTR_MIF_STATUS 0x00020000 /* MIF status register has at least
1 unmasked interrupt set */
#define INTR_PCI_ERROR_STATUS 0x00040000 /* PCI error status register in the
BIF has at least 1 unmasked
interrupt set */
#define INTR_TX_COMP_3_MASK 0xFFF80000 /* mask for TX completion
3 reg data */
#define INTR_TX_COMP_3_SHIFT 19
#define INTR_ERROR_MASK (INTR_MIF_STATUS | INTR_PCI_ERROR_STATUS | \
INTR_PCS_STATUS | INTR_RX_LEN_MISMATCH | \
INTR_TX_MAC_STATUS | INTR_RX_MAC_STATUS | \
INTR_TX_TAG_ERROR | INTR_RX_TAG_ERROR | \
INTR_MAC_CTRL_STATUS)
/* determines which status events will cause an interrupt. layout same
* as REG_INTR_STATUS.
* DEFAULT: 0xFFFFFFFF, SIZE: 16 bits
*/
#define REG_INTR_MASK 0x0010 /* Interrupt mask */
/* top level interrupt bits that are cleared during read of REG_INTR_STATUS_ALIAS.
* useful when driver is polling for interrupts. layout same as REG_INTR_MASK.
* DEFAULT: 0x00000000, SIZE: 12 bits
*/
#define REG_ALIAS_CLEAR 0x0014 /* alias clear mask
(used w/ status alias) */
/* same as REG_INTR_STATUS except that only bits cleared are those selected by
* REG_ALIAS_CLEAR
* DEFAULT: 0x00000000, SIZE: 29 bits
*/
#define REG_INTR_STATUS_ALIAS 0x001C /* interrupt status alias
(selective clear) */
/* DEFAULT: 0x0, SIZE: 3 bits */
#define REG_PCI_ERR_STATUS 0x1000 /* PCI error status */
#define PCI_ERR_BADACK 0x01 /* reserved in Cassini+.
set if no ACK64# during ABS64 cycle
in Cassini. */
#define PCI_ERR_DTRTO 0x02 /* delayed xaction timeout. set if
no read retry after 2^15 clocks */
#define PCI_ERR_OTHER 0x04 /* other PCI errors */
#define PCI_ERR_BIM_DMA_WRITE 0x08 /* BIM received 0 count DMA write req.
unused in Cassini. */
#define PCI_ERR_BIM_DMA_READ 0x10 /* BIM received 0 count DMA read req.
unused in Cassini. */
#define PCI_ERR_BIM_DMA_TIMEOUT 0x20 /* BIM received 255 retries during
DMA. unused in cassini. */
/* mask for PCI status events that will set PCI_ERR_STATUS. if cleared, event
* causes an interrupt to be generated.
* DEFAULT: 0x7, SIZE: 3 bits
*/
#define REG_PCI_ERR_STATUS_MASK 0x1004 /* PCI Error status mask */
/* used to configure PCI related parameters that are not in PCI config space.
* DEFAULT: 0bxx000, SIZE: 5 bits
*/
#define REG_BIM_CFG 0x1008 /* BIM Configuration */
#define BIM_CFG_RESERVED0 0x001 /* reserved */
#define BIM_CFG_RESERVED1 0x002 /* reserved */
#define BIM_CFG_64BIT_DISABLE 0x004 /* disable 64-bit mode */
#define BIM_CFG_66MHZ 0x008 /* (ro) 1 = 66MHz, 0 = < 66MHz */
#define BIM_CFG_32BIT 0x010 /* (ro) 1 = 32-bit slot, 0 = 64-bit */
#define BIM_CFG_DPAR_INTR_ENABLE 0x020 /* detected parity err enable */
#define BIM_CFG_RMA_INTR_ENABLE 0x040 /* master abort intr enable */
#define BIM_CFG_RTA_INTR_ENABLE 0x080 /* target abort intr enable */
#define BIM_CFG_RESERVED2 0x100 /* reserved */
#define BIM_CFG_BIM_DISABLE 0x200 /* stop BIM DMA. use before global
reset. reserved in Cassini. */
#define BIM_CFG_BIM_STATUS 0x400 /* (ro) 1 = BIM DMA suspended.
reserved in Cassini. */
#define BIM_CFG_PERROR_BLOCK 0x800 /* block PERR# to pci bus. def: 0.
reserved in Cassini. */
/* DEFAULT: 0x00000000, SIZE: 32 bits */
#define REG_BIM_DIAG 0x100C /* BIM Diagnostic */
#define BIM_DIAG_MSTR_SM_MASK 0x3FFFFF00 /* PCI master controller state
machine bits [21:0] */
#define BIM_DIAG_BRST_SM_MASK 0x7F /* PCI burst controller state
machine bits [6:0] */
/* writing to SW_RESET_TX and SW_RESET_RX will issue a global
* reset. poll until TX and RX read back as 0's for completion.
*/
#define REG_SW_RESET 0x1010 /* Software reset */
#define SW_RESET_TX 0x00000001 /* reset TX DMA engine. poll until
cleared to 0. */
#define SW_RESET_RX 0x00000002 /* reset RX DMA engine. poll until
cleared to 0. */
#define SW_RESET_RSTOUT 0x00000004 /* force RSTOUT# pin active (low).
resets PHY and anything else
connected to RSTOUT#. RSTOUT#
is also activated by local PCI
reset when hot-swap is being
done. */
#define SW_RESET_BLOCK_PCS_SLINK 0x00000008 /* if a global reset is done with
this bit set, PCS and SLINK
modules won't be reset.
i.e., link won't drop. */
#define SW_RESET_BREQ_SM_MASK 0x00007F00 /* breq state machine [6:0] */
#define SW_RESET_PCIARB_SM_MASK 0x00070000 /* pci arbitration state bits:
0b000: ARB_IDLE1
0b001: ARB_IDLE2
0b010: ARB_WB_ACK
0b011: ARB_WB_WAT
0b100: ARB_RB_ACK
0b101: ARB_RB_WAT
0b110: ARB_RB_END
0b111: ARB_WB_END */
#define SW_RESET_RDPCI_SM_MASK 0x00300000 /* read pci state bits:
0b00: RD_PCI_WAT
0b01: RD_PCI_RDY
0b11: RD_PCI_ACK */
#define SW_RESET_RDARB_SM_MASK 0x00C00000 /* read arbitration state bits:
0b00: AD_IDL_RX
0b01: AD_ACK_RX
0b10: AD_ACK_TX
0b11: AD_IDL_TX */
#define SW_RESET_WRPCI_SM_MASK 0x06000000 /* write pci state bits
0b00: WR_PCI_WAT
0b01: WR_PCI_RDY
0b11: WR_PCI_ACK */
#define SW_RESET_WRARB_SM_MASK 0x38000000 /* write arbitration state bits:
0b000: ARB_IDLE1
0b001: ARB_IDLE2
0b010: ARB_TX_ACK
0b011: ARB_TX_WAT
0b100: ARB_RX_ACK
0b110: ARB_RX_WAT */
/* Cassini only. 64-bit register used to check PCI datapath. when read,
* value written has both lower and upper 32-bit halves rotated to the right
* one bit position. e.g., FFFFFFFF FFFFFFFF -> 7FFFFFFF 7FFFFFFF
*/
#define REG_MINUS_BIM_DATAPATH_TEST 0x1018 /* Cassini: BIM datapath test
Cassini+: reserved */
/* output enables are provided for each device's chip select and for the rest
* of the outputs from cassini to its local bus devices. two sw programmable
* bits are connected to general purpus control/status bits.
* DEFAULT: 0x7
*/
#define REG_BIM_LOCAL_DEV_EN 0x1020 /* BIM local device
output EN. default: 0x7 */
#define BIM_LOCAL_DEV_PAD 0x01 /* address bus, RW signal, and
OE signal output enable on the
local bus interface. these
are shared between both local
bus devices. tristate when 0. */
#define BIM_LOCAL_DEV_PROM 0x02 /* PROM chip select */
#define BIM_LOCAL_DEV_EXT 0x04 /* secondary local bus device chip
select output enable */
#define BIM_LOCAL_DEV_SOFT_0 0x08 /* sw programmable ctrl bit 0 */
#define BIM_LOCAL_DEV_SOFT_1 0x10 /* sw programmable ctrl bit 1 */
#define BIM_LOCAL_DEV_HW_RESET 0x20 /* internal hw reset. Cassini+ only. */
/* access 24 entry BIM read and write buffers. put address in REG_BIM_BUFFER_ADDR
* and read/write from/to it REG_BIM_BUFFER_DATA_LOW and _DATA_HI.
* _DATA_HI should be the last access of the sequence.
* DEFAULT: undefined
*/
#define REG_BIM_BUFFER_ADDR 0x1024 /* BIM buffer address. for
purposes. */
#define BIM_BUFFER_ADDR_MASK 0x3F /* index (0 - 23) of buffer */
#define BIM_BUFFER_WR_SELECT 0x40 /* write buffer access = 1
read buffer access = 0 */
/* DEFAULT: undefined */
#define REG_BIM_BUFFER_DATA_LOW 0x1028 /* BIM buffer data low */
#define REG_BIM_BUFFER_DATA_HI 0x102C /* BIM buffer data high */
/* set BIM_RAM_BIST_START to start built-in self test for BIM read buffer.
* bit auto-clears when done with status read from _SUMMARY and _PASS bits.
*/
#define REG_BIM_RAM_BIST 0x102C /* BIM RAM (read buffer) BIST
control/status */
#define BIM_RAM_BIST_RD_START 0x01 /* start BIST for BIM read buffer */
#define BIM_RAM_BIST_WR_START 0x02 /* start BIST for BIM write buffer.
Cassini only. reserved in
Cassini+. */
#define BIM_RAM_BIST_RD_PASS 0x04 /* summary BIST pass status for read
buffer. */
#define BIM_RAM_BIST_WR_PASS 0x08 /* summary BIST pass status for write
buffer. Cassini only. reserved
in Cassini+. */
#define BIM_RAM_BIST_RD_LOW_PASS 0x10 /* read low bank passes BIST */
#define BIM_RAM_BIST_RD_HI_PASS 0x20 /* read high bank passes BIST */
#define BIM_RAM_BIST_WR_LOW_PASS 0x40 /* write low bank passes BIST.
Cassini only. reserved in
Cassini+. */
#define BIM_RAM_BIST_WR_HI_PASS 0x80 /* write high bank passes BIST.
Cassini only. reserved in
Cassini+. */
/* ASUN: i'm not sure what this does as it's not in the spec.
* DEFAULT: 0xFC
*/
#define REG_BIM_DIAG_MUX 0x1030 /* BIM diagnostic probe mux
select register */
/* enable probe monitoring mode and select data appearing on the P_A* bus. bit
* values for _SEL_HI_MASK and _SEL_LOW_MASK:
* 0x0: internal probe[7:0] (pci arb state, wtc empty w, wtc full w, wtc empty w,
* wtc empty r, post pci)
* 0x1: internal probe[15:8] (pci wbuf comp, pci wpkt comp, pci rbuf comp,
* pci rpkt comp, txdma wr req, txdma wr ack,
* txdma wr rdy, txdma wr xfr done)
* 0x2: internal probe[23:16] (txdma rd req, txdma rd ack, txdma rd rdy, rxdma rd,
* rd arb state, rd pci state)
* 0x3: internal probe[31:24] (rxdma req, rxdma ack, rxdma rdy, wrarb state,
* wrpci state)
* 0x4: pci io probe[7:0] 0x5: pci io probe[15:8]
* 0x6: pci io probe[23:16] 0x7: pci io probe[31:24]
* 0x8: pci io probe[39:32] 0x9: pci io probe[47:40]
* 0xa: pci io probe[55:48] 0xb: pci io probe[63:56]
* the following are not available in Cassini:
* 0xc: rx probe[7:0] 0xd: tx probe[7:0]
* 0xe: hp probe[7:0] 0xf: mac probe[7:0]
*/
#define REG_PLUS_PROBE_MUX_SELECT 0x1034 /* Cassini+: PROBE MUX SELECT */
#define PROBE_MUX_EN 0x80000000 /* allow probe signals to be
driven on local bus P_A[15:0]
for debugging */
#define PROBE_MUX_SUB_MUX_MASK 0x0000FF00 /* select sub module probe signals:
0x03 = mac[1:0]
0x0C = rx[1:0]
0x30 = tx[1:0]
0xC0 = hp[1:0] */
#define PROBE_MUX_SEL_HI_MASK 0x000000F0 /* select which module to appear
on P_A[15:8]. see above for
values. */
#define PROBE_MUX_SEL_LOW_MASK 0x0000000F /* select which module to appear
on P_A[7:0]. see above for
values. */
/* values mean the same thing as REG_INTR_MASK excep that it's for INTB.
DEFAULT: 0x1F */
#define REG_PLUS_INTR_MASK_1 0x1038 /* Cassini+: interrupt mask
register 2 for INTB */
#define REG_PLUS_INTRN_MASK(x) (REG_PLUS_INTR_MASK_1 + ((x) - 1)*16)
/* bits correspond to both _MASK and _STATUS registers. _ALT corresponds to
* all of the alternate (2-4) INTR registers while _1 corresponds to only
* _MASK_1 and _STATUS_1 registers.
* DEFAULT: 0x7 for MASK registers, 0x0 for ALIAS_CLEAR registers
*/
#define INTR_RX_DONE_ALT 0x01
#define INTR_RX_COMP_FULL_ALT 0x02
#define INTR_RX_COMP_AF_ALT 0x04
#define INTR_RX_BUF_UNAVAIL_1 0x08
#define INTR_RX_BUF_AE_1 0x10 /* almost empty */
#define INTRN_MASK_RX_EN 0x80
#define INTRN_MASK_CLEAR_ALL (INTR_RX_DONE_ALT | \
INTR_RX_COMP_FULL_ALT | \
INTR_RX_COMP_AF_ALT | \
INTR_RX_BUF_UNAVAIL_1 | \
INTR_RX_BUF_AE_1)
#define REG_PLUS_INTR_STATUS_1 0x103C /* Cassini+: interrupt status
register 2 for INTB. default: 0x1F */
#define REG_PLUS_INTRN_STATUS(x) (REG_PLUS_INTR_STATUS_1 + ((x) - 1)*16)
#define INTR_STATUS_ALT_INTX_EN 0x80 /* generate INTX when one of the
flags are set. enables desc ring. */
#define REG_PLUS_ALIAS_CLEAR_1 0x1040 /* Cassini+: alias clear mask
register 2 for INTB */
#define REG_PLUS_ALIASN_CLEAR(x) (REG_PLUS_ALIAS_CLEAR_1 + ((x) - 1)*16)
#define REG_PLUS_INTR_STATUS_ALIAS_1 0x1044 /* Cassini+: interrupt status
register alias 2 for INTB */
#define REG_PLUS_INTRN_STATUS_ALIAS(x) (REG_PLUS_INTR_STATUS_ALIAS_1 + ((x) - 1)*16)
#define REG_SATURN_PCFG 0x106c /* pin configuration register for
integrated macphy */
#define SATURN_PCFG_TLA 0x00000001 /* 1 = phy actled */
#define SATURN_PCFG_FLA 0x00000002 /* 1 = phy link10led */
#define SATURN_PCFG_CLA 0x00000004 /* 1 = phy link100led */
#define SATURN_PCFG_LLA 0x00000008 /* 1 = phy link1000led */
#define SATURN_PCFG_RLA 0x00000010 /* 1 = phy duplexled */
#define SATURN_PCFG_PDS 0x00000020 /* phy debug mode.
0 = normal */
#define SATURN_PCFG_MTP 0x00000080 /* test point select */
#define SATURN_PCFG_GMO 0x00000100 /* GMII observe. 1 =
GMII on SERDES pins for
monitoring. */
#define SATURN_PCFG_FSI 0x00000200 /* 1 = freeze serdes/gmii. all
pins configed as outputs.
for power saving when using
internal phy. */
#define SATURN_PCFG_LAD 0x00000800 /* 0 = mac core led ctrl
polarity from strapping
value.
1 = mac core led ctrl
polarity active low. */
/** transmit dma registers **/
#define MAX_TX_RINGS_SHIFT 2
#define MAX_TX_RINGS (1 << MAX_TX_RINGS_SHIFT)
#define MAX_TX_RINGS_MASK (MAX_TX_RINGS - 1)
/* TX configuration.
* descr ring sizes size = 32 * (1 << n), n < 9. e.g., 0x8 = 8k. default: 0x8
* DEFAULT: 0x3F000001
*/
#define REG_TX_CFG 0x2004 /* TX config */
#define TX_CFG_DMA_EN 0x00000001 /* enable TX DMA. if cleared, DMA
will stop after xfer of current
buffer has been completed. */
#define TX_CFG_FIFO_PIO_SEL 0x00000002 /* TX DMA FIFO can be
accessed w/ FIFO addr
and data registers.
TX DMA should be
disabled. */
#define TX_CFG_DESC_RING0_MASK 0x0000003C /* # desc entries in
ring 1. */
#define TX_CFG_DESC_RING0_SHIFT 2
#define TX_CFG_DESC_RINGN_MASK(a) (TX_CFG_DESC_RING0_MASK << (a)*4)
#define TX_CFG_DESC_RINGN_SHIFT(a) (TX_CFG_DESC_RING0_SHIFT + (a)*4)
#define TX_CFG_PACED_MODE 0x00100000 /* TX_ALL only set after
TX FIFO becomes empty.
if 0, TX_ALL set
if descr queue empty. */
#define TX_CFG_DMA_RDPIPE_DIS 0x01000000 /* always set to 1 */
#define TX_CFG_COMPWB_Q1 0x02000000 /* completion writeback happens at
the end of every packet kicked
through Q1. */
#define TX_CFG_COMPWB_Q2 0x04000000 /* completion writeback happens at
the end of every packet kicked
through Q2. */
#define TX_CFG_COMPWB_Q3 0x08000000 /* completion writeback happens at
the end of every packet kicked
through Q3 */
#define TX_CFG_COMPWB_Q4 0x10000000 /* completion writeback happens at
the end of every packet kicked
through Q4 */
#define TX_CFG_INTR_COMPWB_DIS 0x20000000 /* disable pre-interrupt completion
writeback */
#define TX_CFG_CTX_SEL_MASK 0xC0000000 /* selects tx test port
connection
0b00: tx mac req,
tx mac retry req,
tx ack and tx tag.
0b01: txdma rd req,
txdma rd ack,
txdma rd rdy,
txdma rd type0
0b11: txdma wr req,
txdma wr ack,
txdma wr rdy,
txdma wr xfr done. */
#define TX_CFG_CTX_SEL_SHIFT 30
/* 11-bit counters that point to next location in FIFO to be loaded/retrieved.
* used for diagnostics only.
*/
#define REG_TX_FIFO_WRITE_PTR 0x2014 /* TX FIFO write pointer */
#define REG_TX_FIFO_SHADOW_WRITE_PTR 0x2018 /* TX FIFO shadow write
pointer. temp hold reg.
diagnostics only. */
#define REG_TX_FIFO_READ_PTR 0x201C /* TX FIFO read pointer */
#define REG_TX_FIFO_SHADOW_READ_PTR 0x2020 /* TX FIFO shadow read
pointer */
/* (ro) 11-bit up/down counter w/ # of frames currently in TX FIFO */
#define REG_TX_FIFO_PKT_CNT 0x2024 /* TX FIFO packet counter */
/* current state of all state machines in TX */
#define REG_TX_SM_1 0x2028 /* TX state machine reg #1 */
#define TX_SM_1_CHAIN_MASK 0x000003FF /* chaining state machine */
#define TX_SM_1_CSUM_MASK 0x00000C00 /* checksum state machine */
#define TX_SM_1_FIFO_LOAD_MASK 0x0003F000 /* FIFO load state machine.
= 0x01 when TX disabled. */
#define TX_SM_1_FIFO_UNLOAD_MASK 0x003C0000 /* FIFO unload state machine */
#define TX_SM_1_CACHE_MASK 0x03C00000 /* desc. prefetch cache controller
state machine */
#define TX_SM_1_CBQ_ARB_MASK 0xF8000000 /* CBQ arbiter state machine */
#define REG_TX_SM_2 0x202C /* TX state machine reg #2 */
#define TX_SM_2_COMP_WB_MASK 0x07 /* completion writeback sm */
#define TX_SM_2_SUB_LOAD_MASK 0x38 /* sub load state machine */
#define TX_SM_2_KICK_MASK 0xC0 /* kick state machine */
/* 64-bit pointer to the transmit data buffer. only the 50 LSB are incremented
* while the upper 23 bits are taken from the TX descriptor
*/
#define REG_TX_DATA_PTR_LOW 0x2030 /* TX data pointer low */
#define REG_TX_DATA_PTR_HI 0x2034 /* TX data pointer high */
/* 13 bit registers written by driver w/ descriptor value that follows
* last valid xmit descriptor. kick # and complete # values are used by
* the xmit dma engine to control tx descr fetching. if > 1 valid
* tx descr is available within the cache line being read, cassini will
* internally cache up to 4 of them. 0 on reset. _KICK = rw, _COMP = ro.
*/
#define REG_TX_KICK0 0x2038 /* TX kick reg #1 */
#define REG_TX_KICKN(x) (REG_TX_KICK0 + (x)*4)
#define REG_TX_COMP0 0x2048 /* TX completion reg #1 */
#define REG_TX_COMPN(x) (REG_TX_COMP0 + (x)*4)
/* values of TX_COMPLETE_1-4 are written. each completion register
* is 2bytes in size and contiguous. 8B allocation w/ 8B alignment.
* NOTE: completion reg values are only written back prior to TX_INTME and
* TX_ALL interrupts. at all other times, the most up-to-date index values
* should be obtained from the REG_TX_COMPLETE_# registers.
* here's the layout:
* offset from base addr completion # byte
* 0 TX_COMPLETE_1_MSB
* 1 TX_COMPLETE_1_LSB
* 2 TX_COMPLETE_2_MSB
* 3 TX_COMPLETE_2_LSB
* 4 TX_COMPLETE_3_MSB
* 5 TX_COMPLETE_3_LSB
* 6 TX_COMPLETE_4_MSB
* 7 TX_COMPLETE_4_LSB
*/
#define TX_COMPWB_SIZE 8
#define REG_TX_COMPWB_DB_LOW 0x2058 /* TX completion write back
base low */
#define REG_TX_COMPWB_DB_HI 0x205C /* TX completion write back
base high */
#define TX_COMPWB_MSB_MASK 0x00000000000000FFULL
#define TX_COMPWB_MSB_SHIFT 0
#define TX_COMPWB_LSB_MASK 0x000000000000FF00ULL
#define TX_COMPWB_LSB_SHIFT 8
#define TX_COMPWB_NEXT(x) ((x) >> 16)
/* 53 MSB used as base address. 11 LSB assumed to be 0. TX desc pointer must
* be 2KB-aligned. */
#define REG_TX_DB0_LOW 0x2060 /* TX descriptor base low #1 */
#define REG_TX_DB0_HI 0x2064 /* TX descriptor base hi #1 */
#define REG_TX_DBN_LOW(x) (REG_TX_DB0_LOW + (x)*8)
#define REG_TX_DBN_HI(x) (REG_TX_DB0_HI + (x)*8)
/* 16-bit registers hold weights for the weighted round-robin of the
* four CBQ TX descr rings. weights correspond to # bytes xferred from
* host to TXFIFO in a round of WRR arbitration. can be set
* dynamically with new weights set upon completion of the current
* packet transfer from host memory to TXFIFO. a dummy write to any of
* these registers causes a queue1 pre-emption with all historical bw
* deficit data reset to 0 (useful when congestion requires a
* pre-emption/re-allocation of network bandwidth
*/
#define REG_TX_MAXBURST_0 0x2080 /* TX MaxBurst #1 */
#define REG_TX_MAXBURST_1 0x2084 /* TX MaxBurst #2 */
#define REG_TX_MAXBURST_2 0x2088 /* TX MaxBurst #3 */
#define REG_TX_MAXBURST_3 0x208C /* TX MaxBurst #4 */
/* diagnostics access to any TX FIFO location. every access is 65
* bits. _DATA_LOW = 32 LSB, _DATA_HI_T1/T0 = 32 MSB. _TAG = tag bit.
* writing _DATA_HI_T0 sets tag bit low, writing _DATA_HI_T1 sets tag
* bit high. TX_FIFO_PIO_SEL must be set for TX FIFO PIO access. if
* TX FIFO data integrity is desired, TX DMA should be
* disabled. _DATA_HI_Tx should be the last access of the sequence.
*/
#define REG_TX_FIFO_ADDR 0x2104 /* TX FIFO address */
#define REG_TX_FIFO_TAG 0x2108 /* TX FIFO tag */
#define REG_TX_FIFO_DATA_LOW 0x210C /* TX FIFO data low */
#define REG_TX_FIFO_DATA_HI_T1 0x2110 /* TX FIFO data high t1 */
#define REG_TX_FIFO_DATA_HI_T0 0x2114 /* TX FIFO data high t0 */
#define REG_TX_FIFO_SIZE 0x2118 /* (ro) TX FIFO size = 0x090 = 9KB */
/* 9-bit register controls BIST of TX FIFO. bit set indicates that the BIST
* passed for the specified memory
*/
#define REG_TX_RAMBIST 0x211C /* TX RAMBIST control/status */
#define TX_RAMBIST_STATE 0x01C0 /* progress state of RAMBIST
controller state machine */
#define TX_RAMBIST_RAM33A_PASS 0x0020 /* RAM33A passed */
#define TX_RAMBIST_RAM32A_PASS 0x0010 /* RAM32A passed */
#define TX_RAMBIST_RAM33B_PASS 0x0008 /* RAM33B passed */
#define TX_RAMBIST_RAM32B_PASS 0x0004 /* RAM32B passed */
#define TX_RAMBIST_SUMMARY 0x0002 /* all RAM passed */
#define TX_RAMBIST_START 0x0001 /* write 1 to start BIST. self
clears on completion. */
/** receive dma registers **/
#define MAX_RX_DESC_RINGS 2
#define MAX_RX_COMP_RINGS 4
/* receive DMA channel configuration. default: 0x80910
* free ring size = (1 << n)*32 -> [32 - 8k]
* completion ring size = (1 << n)*128 -> [128 - 32k], n < 9
* DEFAULT: 0x80910
*/
#define REG_RX_CFG 0x4000 /* RX config */
#define RX_CFG_DMA_EN 0x00000001 /* enable RX DMA. 0 stops
channel as soon as current
frame xfer has completed.
driver should disable MAC
for 200ms before disabling
RX */
#define RX_CFG_DESC_RING_MASK 0x0000001E /* # desc entries in RX
free desc ring.
def: 0x8 = 8k */
#define RX_CFG_DESC_RING_SHIFT 1
#define RX_CFG_COMP_RING_MASK 0x000001E0 /* # desc entries in RX complete
ring. def: 0x8 = 32k */
#define RX_CFG_COMP_RING_SHIFT 5
#define RX_CFG_BATCH_DIS 0x00000200 /* disable receive desc
batching. def: 0x0 =
enabled */
#define RX_CFG_SWIVEL_MASK 0x00001C00 /* byte offset of the 1st
data byte of the packet
w/in 8 byte boundares.
this swivels the data
DMA'ed to header
buffers, jumbo buffers
when header split is not
requested and MTU sized
buffers. def: 0x2 */
#define RX_CFG_SWIVEL_SHIFT 10
/* cassini+ only */
#define RX_CFG_DESC_RING1_MASK 0x000F0000 /* # of desc entries in
RX free desc ring 2.
def: 0x8 = 8k */
#define RX_CFG_DESC_RING1_SHIFT 16
/* the page size register allows cassini chips to do the following with
* received data:
* [--------------------------------------------------------------] page
* [off][buf1][pad][off][buf2][pad][off][buf3][pad][off][buf4][pad]
* |--------------| = PAGE_SIZE_BUFFER_STRIDE
* page = PAGE_SIZE
* offset = PAGE_SIZE_MTU_OFF
* for the above example, MTU_BUFFER_COUNT = 4.
* NOTE: as is apparent, you need to ensure that the following holds:
* MTU_BUFFER_COUNT <= PAGE_SIZE/PAGE_SIZE_BUFFER_STRIDE
* DEFAULT: 0x48002002 (8k pages)
*/
#define REG_RX_PAGE_SIZE 0x4004 /* RX page size */
#define RX_PAGE_SIZE_MASK 0x00000003 /* size of pages pointed to
by receive descriptors.
if jumbo buffers are
supported the page size
should not be < 8k.
0b00 = 2k, 0b01 = 4k
0b10 = 8k, 0b11 = 16k
DEFAULT: 8k */
#define RX_PAGE_SIZE_SHIFT 0
#define RX_PAGE_SIZE_MTU_COUNT_MASK 0x00007800 /* # of MTU buffers the hw
packs into a page.
DEFAULT: 4 */
#define RX_PAGE_SIZE_MTU_COUNT_SHIFT 11
#define RX_PAGE_SIZE_MTU_STRIDE_MASK 0x18000000 /* # of bytes that separate
each MTU buffer +
offset from each
other.
0b00 = 1k, 0b01 = 2k
0b10 = 4k, 0b11 = 8k
DEFAULT: 0x1 */
#define RX_PAGE_SIZE_MTU_STRIDE_SHIFT 27
#define RX_PAGE_SIZE_MTU_OFF_MASK 0xC0000000 /* offset in each page that
hw writes the MTU buffer
into.
0b00 = 0,
0b01 = 64 bytes
0b10 = 96, 0b11 = 128
DEFAULT: 0x1 */
#define RX_PAGE_SIZE_MTU_OFF_SHIFT 30
/* 11-bit counter points to next location in RX FIFO to be loaded/read.
* shadow write pointers enable retries in case of early receive aborts.
* DEFAULT: 0x0. generated on 64-bit boundaries.
*/
#define REG_RX_FIFO_WRITE_PTR 0x4008 /* RX FIFO write pointer */
#define REG_RX_FIFO_READ_PTR 0x400C /* RX FIFO read pointer */
#define REG_RX_IPP_FIFO_SHADOW_WRITE_PTR 0x4010 /* RX IPP FIFO shadow write
pointer */
#define REG_RX_IPP_FIFO_SHADOW_READ_PTR 0x4014 /* RX IPP FIFO shadow read
pointer */
#define REG_RX_IPP_FIFO_READ_PTR 0x400C /* RX IPP FIFO read
pointer. (8-bit counter) */
/* current state of RX DMA state engines + other info
* DEFAULT: 0x0
*/
#define REG_RX_DEBUG 0x401C /* RX debug */
#define RX_DEBUG_LOAD_STATE_MASK 0x0000000F /* load state machine w/ MAC:
0x0 = idle, 0x1 = load_bop
0x2 = load 1, 0x3 = load 2
0x4 = load 3, 0x5 = load 4
0x6 = last detect
0x7 = wait req
0x8 = wait req statuss 1st
0x9 = load st
0xa = bubble mac
0xb = error */
#define RX_DEBUG_LM_STATE_MASK 0x00000070 /* load state machine w/ HP and
RX FIFO:
0x0 = idle, 0x1 = hp xfr
0x2 = wait hp ready
0x3 = wait flow code
0x4 = fifo xfer
0x5 = make status
0x6 = csum ready
0x7 = error */
#define RX_DEBUG_FC_STATE_MASK 0x000000180 /* flow control state machine
w/ MAC:
0x0 = idle
0x1 = wait xoff ack
0x2 = wait xon
0x3 = wait xon ack */
#define RX_DEBUG_DATA_STATE_MASK 0x000001E00 /* unload data state machine
states:
0x0 = idle data
0x1 = header begin
0x2 = xfer header
0x3 = xfer header ld
0x4 = mtu begin
0x5 = xfer mtu
0x6 = xfer mtu ld
0x7 = jumbo begin
0x8 = xfer jumbo
0x9 = xfer jumbo ld
0xa = reas begin
0xb = xfer reas
0xc = flush tag
0xd = xfer reas ld
0xe = error
0xf = bubble idle */
#define RX_DEBUG_DESC_STATE_MASK 0x0001E000 /* unload desc state machine
states:
0x0 = idle desc
0x1 = wait ack
0x9 = wait ack 2
0x2 = fetch desc 1
0xa = fetch desc 2
0x3 = load ptrs
0x4 = wait dma
0x5 = wait ack batch
0x6 = post batch
0x7 = xfr done */
#define RX_DEBUG_INTR_READ_PTR_MASK 0x30000000 /* interrupt read ptr of the
interrupt queue */
#define RX_DEBUG_INTR_WRITE_PTR_MASK 0xC0000000 /* interrupt write pointer
of the interrupt queue */
/* flow control frames are emmitted using two PAUSE thresholds:
* XOFF PAUSE uses pause time value pre-programmed in the Send PAUSE MAC reg
* XON PAUSE uses a pause time of 0. granularity of threshold is 64bytes.
* PAUSE thresholds defined in terms of FIFO occupancy and may be translated
* into FIFO vacancy using RX_FIFO_SIZE. setting ON will trigger XON frames
* when FIFO reaches 0. OFF threshold should not be > size of RX FIFO. max
* value is is 0x6F.
* DEFAULT: 0x00078
*/
#define REG_RX_PAUSE_THRESH 0x4020 /* RX pause thresholds */
#define RX_PAUSE_THRESH_QUANTUM 64
#define RX_PAUSE_THRESH_OFF_MASK 0x000001FF /* XOFF PAUSE emitted when
RX FIFO occupancy >
value*64B */
#define RX_PAUSE_THRESH_OFF_SHIFT 0
#define RX_PAUSE_THRESH_ON_MASK 0x001FF000 /* XON PAUSE emitted after
emitting XOFF PAUSE when RX
FIFO occupancy falls below
this value*64B. must be
< XOFF threshold. if =
RX_FIFO_SIZE< XON frames are
never emitted. */
#define RX_PAUSE_THRESH_ON_SHIFT 12
/* 13-bit register used to control RX desc fetching and intr generation. if 4+
* valid RX descriptors are available, Cassini will read 4 at a time.
* writing N means that all desc up to *but* excluding N are available. N must
* be a multiple of 4 (N % 4 = 0). first desc should be cache-line aligned.
* DEFAULT: 0 on reset
*/
#define REG_RX_KICK 0x4024 /* RX kick reg */
/* 8KB aligned 64-bit pointer to the base of the RX free/completion rings.
* lower 13 bits of the low register are hard-wired to 0.
*/
#define REG_RX_DB_LOW 0x4028 /* RX descriptor ring
base low */
#define REG_RX_DB_HI 0x402C /* RX descriptor ring
base hi */
#define REG_RX_CB_LOW 0x4030 /* RX completion ring
base low */
#define REG_RX_CB_HI 0x4034 /* RX completion ring
base hi */
/* 13-bit register indicate desc used by cassini for receive frames. used
* for diagnostic purposes.
* DEFAULT: 0 on reset
*/
#define REG_RX_COMP 0x4038 /* (ro) RX completion */
/* HEAD and TAIL are used to control RX desc posting and interrupt
* generation. hw moves the head register to pass ownership to sw. sw
* moves the tail register to pass ownership back to hw. to give all
* entries to hw, set TAIL = HEAD. if HEAD and TAIL indicate that no
* more entries are available, DMA will pause and an interrupt will be
* generated to indicate no more entries are available. sw can use
* this interrupt to reduce the # of times it must update the
* completion tail register.
* DEFAULT: 0 on reset
*/
#define REG_RX_COMP_HEAD 0x403C /* RX completion head */
#define REG_RX_COMP_TAIL 0x4040 /* RX completion tail */
/* values used for receive interrupt blanking. loaded each time the ISR is read
* DEFAULT: 0x00000000
*/
#define REG_RX_BLANK 0x4044 /* RX blanking register
for ISR read */
#define RX_BLANK_INTR_PKT_MASK 0x000001FF /* RX_DONE intr asserted if
this many sets of completion
writebacks (up to 2 packets)
occur since the last time
the ISR was read. 0 = no
packet blanking */
#define RX_BLANK_INTR_PKT_SHIFT 0
#define RX_BLANK_INTR_TIME_MASK 0x3FFFF000 /* RX_DONE interrupt asserted
if that many clocks were
counted since last time the
ISR was read.
each count is 512 core
clocks (125MHz). 0 = no
time blanking */
#define RX_BLANK_INTR_TIME_SHIFT 12
/* values used for interrupt generation based on threshold values of how
* many free desc and completion entries are available for hw use.
* DEFAULT: 0x00000000
*/
#define REG_RX_AE_THRESH 0x4048 /* RX almost empty
thresholds */
#define RX_AE_THRESH_FREE_MASK 0x00001FFF /* RX_BUF_AE will be
generated if # desc
avail for hw use <=
# */
#define RX_AE_THRESH_FREE_SHIFT 0
#define RX_AE_THRESH_COMP_MASK 0x0FFFE000 /* RX_COMP_AE will be
generated if # of
completion entries
avail for hw use <=
# */
#define RX_AE_THRESH_COMP_SHIFT 13
/* probabilities for random early drop (RED) thresholds on a FIFO threshold
* basis. probability should increase when the FIFO level increases. control
* packets are never dropped and not counted in stats. probability programmed
* on a 12.5% granularity. e.g., 0x1 = 1/8 packets dropped.
* DEFAULT: 0x00000000
*/
#define REG_RX_RED 0x404C /* RX random early detect enable */
#define RX_RED_4K_6K_FIFO_MASK 0x000000FF /* 4KB < FIFO thresh < 6KB */
#define RX_RED_6K_8K_FIFO_MASK 0x0000FF00 /* 6KB < FIFO thresh < 8KB */
#define RX_RED_8K_10K_FIFO_MASK 0x00FF0000 /* 8KB < FIFO thresh < 10KB */
#define RX_RED_10K_12K_FIFO_MASK 0xFF000000 /* 10KB < FIFO thresh < 12KB */
/* FIFO fullness levels for RX FIFO, RX control FIFO, and RX IPP FIFO.
* RX control FIFO = # of packets in RX FIFO.
* DEFAULT: 0x0
*/
#define REG_RX_FIFO_FULLNESS 0x4050 /* (ro) RX FIFO fullness */
#define RX_FIFO_FULLNESS_RX_FIFO_MASK 0x3FF80000 /* level w/ 8B granularity */
#define RX_FIFO_FULLNESS_IPP_FIFO_MASK 0x0007FF00 /* level w/ 8B granularity */
#define RX_FIFO_FULLNESS_RX_PKT_MASK 0x000000FF /* # packets in RX FIFO */
#define REG_RX_IPP_PACKET_COUNT 0x4054 /* RX IPP packet counter */
#define REG_RX_WORK_DMA_PTR_LOW 0x4058 /* RX working DMA ptr low */
#define REG_RX_WORK_DMA_PTR_HI 0x405C /* RX working DMA ptr
high */
/* BIST testing ro RX FIFO, RX control FIFO, and RX IPP FIFO. only RX BIST
* START/COMPLETE is writeable. START will clear when the BIST has completed
* checking all 17 RAMS.
* DEFAULT: 0bxxxx xxxxx xxxx xxxx xxxx x000 0000 0000 00x0
*/
#define REG_RX_BIST 0x4060 /* (ro) RX BIST */
#define RX_BIST_32A_PASS 0x80000000 /* RX FIFO 32A passed */
#define RX_BIST_33A_PASS 0x40000000 /* RX FIFO 33A passed */
#define RX_BIST_32B_PASS 0x20000000 /* RX FIFO 32B passed */
#define RX_BIST_33B_PASS 0x10000000 /* RX FIFO 33B passed */
#define RX_BIST_32C_PASS 0x08000000 /* RX FIFO 32C passed */
#define RX_BIST_33C_PASS 0x04000000 /* RX FIFO 33C passed */
#define RX_BIST_IPP_32A_PASS 0x02000000 /* RX IPP FIFO 33B passed */
#define RX_BIST_IPP_33A_PASS 0x01000000 /* RX IPP FIFO 33A passed */
#define RX_BIST_IPP_32B_PASS 0x00800000 /* RX IPP FIFO 32B passed */
#define RX_BIST_IPP_33B_PASS 0x00400000 /* RX IPP FIFO 33B passed */
#define RX_BIST_IPP_32C_PASS 0x00200000 /* RX IPP FIFO 32C passed */
#define RX_BIST_IPP_33C_PASS 0x00100000 /* RX IPP FIFO 33C passed */
#define RX_BIST_CTRL_32_PASS 0x00800000 /* RX CTRL FIFO 32 passed */
#define RX_BIST_CTRL_33_PASS 0x00400000 /* RX CTRL FIFO 33 passed */
#define RX_BIST_REAS_26A_PASS 0x00200000 /* RX Reas 26A passed */
#define RX_BIST_REAS_26B_PASS 0x00100000 /* RX Reas 26B passed */
#define RX_BIST_REAS_27_PASS 0x00080000 /* RX Reas 27 passed */
#define RX_BIST_STATE_MASK 0x00078000 /* BIST state machine */
#define RX_BIST_SUMMARY 0x00000002 /* when BIST complete,
summary pass bit
contains AND of BIST
results of all 16
RAMS */
#define RX_BIST_START 0x00000001 /* write 1 to start
BIST. self clears
on completion. */
/* next location in RX CTRL FIFO that will be loaded w/ data from RX IPP/read
* from to retrieve packet control info.
* DEFAULT: 0
*/
#define REG_RX_CTRL_FIFO_WRITE_PTR 0x4064 /* (ro) RX control FIFO
write ptr */
#define REG_RX_CTRL_FIFO_READ_PTR 0x4068 /* (ro) RX control FIFO read
ptr */
/* receive interrupt blanking. loaded each time interrupt alias register is
* read.
* DEFAULT: 0x0
*/
#define REG_RX_BLANK_ALIAS_READ 0x406C /* RX blanking register for
alias read */
#define RX_BAR_INTR_PACKET_MASK 0x000001FF /* assert RX_DONE if #
completion writebacks
> # since last ISR
read. 0 = no
blanking. up to 2
packets per
completion wb. */
#define RX_BAR_INTR_TIME_MASK 0x3FFFF000 /* assert RX_DONE if #
clocks > # since last
ISR read. each count
is 512 core clocks
(125MHz). 0 = no
blanking. */
/* diagnostic access to RX FIFO. 32 LSB accessed via DATA_LOW. 32 MSB accessed
* via DATA_HI_T0 or DATA_HI_T1. TAG reads the tag bit. writing HI_T0
* will unset the tag bit while writing HI_T1 will set the tag bit. to reset
* to normal operation after diagnostics, write to address location 0x0.
* RX_DMA_EN bit must be set to 0x0 for RX FIFO PIO access. DATA_HI should
* be the last write access of a write sequence.
* DEFAULT: undefined
*/
#define REG_RX_FIFO_ADDR 0x4080 /* RX FIFO address */
#define REG_RX_FIFO_TAG 0x4084 /* RX FIFO tag */
#define REG_RX_FIFO_DATA_LOW 0x4088 /* RX FIFO data low */
#define REG_RX_FIFO_DATA_HI_T0 0x408C /* RX FIFO data high T0 */
#define REG_RX_FIFO_DATA_HI_T1 0x4090 /* RX FIFO data high T1 */
/* diagnostic assess to RX CTRL FIFO. 8-bit FIFO_ADDR holds address of
* 81 bit control entry and 6 bit flow id. LOW and MID are both 32-bit
* accesses. HI is 7-bits with 6-bit flow id and 1 bit control
* word. RX_DMA_EN must be 0 for RX CTRL FIFO PIO access. DATA_HI
* should be last write access of the write sequence.
* DEFAULT: undefined
*/
#define REG_RX_CTRL_FIFO_ADDR 0x4094 /* RX Control FIFO and
Batching FIFO addr */
#define REG_RX_CTRL_FIFO_DATA_LOW 0x4098 /* RX Control FIFO data
low */
#define REG_RX_CTRL_FIFO_DATA_MID 0x409C /* RX Control FIFO data
mid */
#define REG_RX_CTRL_FIFO_DATA_HI 0x4100 /* RX Control FIFO data
hi and flow id */
#define RX_CTRL_FIFO_DATA_HI_CTRL 0x0001 /* upper bit of ctrl word */
#define RX_CTRL_FIFO_DATA_HI_FLOW_MASK 0x007E /* flow id */
/* diagnostic access to RX IPP FIFO. same semantics as RX_FIFO.
* DEFAULT: undefined
*/
#define REG_RX_IPP_FIFO_ADDR 0x4104 /* RX IPP FIFO address */
#define REG_RX_IPP_FIFO_TAG 0x4108 /* RX IPP FIFO tag */
#define REG_RX_IPP_FIFO_DATA_LOW 0x410C /* RX IPP FIFO data low */
#define REG_RX_IPP_FIFO_DATA_HI_T0 0x4110 /* RX IPP FIFO data high
T0 */
#define REG_RX_IPP_FIFO_DATA_HI_T1 0x4114 /* RX IPP FIFO data high
T1 */
/* 64-bit pointer to receive data buffer in host memory used for headers and
* small packets. MSB in high register. loaded by DMA state machine and
* increments as DMA writes receive data. only 50 LSB are incremented. top
* 13 bits taken from RX descriptor.
* DEFAULT: undefined
*/
#define REG_RX_HEADER_PAGE_PTR_LOW 0x4118 /* (ro) RX header page ptr
low */
#define REG_RX_HEADER_PAGE_PTR_HI 0x411C /* (ro) RX header page ptr
high */
#define REG_RX_MTU_PAGE_PTR_LOW 0x4120 /* (ro) RX MTU page pointer
low */
#define REG_RX_MTU_PAGE_PTR_HI 0x4124 /* (ro) RX MTU page pointer
high */
/* PIO diagnostic access to RX reassembly DMA Table RAM. 6-bit register holds
* one of 64 79-bit locations in the RX Reassembly DMA table and the addr of
* one of the 64 byte locations in the Batching table. LOW holds 32 LSB.
* MID holds the next 32 LSB. HIGH holds the 15 MSB. RX_DMA_EN must be set
* to 0 for PIO access. DATA_HIGH should be last write of write sequence.
* layout:
* reassmbl ptr [78:15] | reassmbl index [14:1] | reassmbl entry valid [0]
* DEFAULT: undefined
*/
#define REG_RX_TABLE_ADDR 0x4128 /* RX reassembly DMA table
address */
#define RX_TABLE_ADDR_MASK 0x0000003F /* address mask */
#define REG_RX_TABLE_DATA_LOW 0x412C /* RX reassembly DMA table
data low */
#define REG_RX_TABLE_DATA_MID 0x4130 /* RX reassembly DMA table
data mid */
#define REG_RX_TABLE_DATA_HI 0x4134 /* RX reassembly DMA table
data high */
/* cassini+ only */
/* 8KB aligned 64-bit pointer to base of RX rings. lower 13 bits hardwired to
* 0. same semantics as primary desc/complete rings.
*/
#define REG_PLUS_RX_DB1_LOW 0x4200 /* RX descriptor ring
2 base low */
#define REG_PLUS_RX_DB1_HI 0x4204 /* RX descriptor ring
2 base high */
#define REG_PLUS_RX_CB1_LOW 0x4208 /* RX completion ring
2 base low. 4 total */
#define REG_PLUS_RX_CB1_HI 0x420C /* RX completion ring
2 base high. 4 total */
#define REG_PLUS_RX_CBN_LOW(x) (REG_PLUS_RX_CB1_LOW + 8*((x) - 1))
#define REG_PLUS_RX_CBN_HI(x) (REG_PLUS_RX_CB1_HI + 8*((x) - 1))
#define REG_PLUS_RX_KICK1 0x4220 /* RX Kick 2 register */
#define REG_PLUS_RX_COMP1 0x4224 /* (ro) RX completion 2
reg */
#define REG_PLUS_RX_COMP1_HEAD 0x4228 /* (ro) RX completion 2
head reg. 4 total. */
#define REG_PLUS_RX_COMP1_TAIL 0x422C /* RX completion 2
tail reg. 4 total. */
#define REG_PLUS_RX_COMPN_HEAD(x) (REG_PLUS_RX_COMP1_HEAD + 8*((x) - 1))
#define REG_PLUS_RX_COMPN_TAIL(x) (REG_PLUS_RX_COMP1_TAIL + 8*((x) - 1))
#define REG_PLUS_RX_AE1_THRESH 0x4240 /* RX almost empty 2
thresholds */
#define RX_AE1_THRESH_FREE_MASK RX_AE_THRESH_FREE_MASK
#define RX_AE1_THRESH_FREE_SHIFT RX_AE_THRESH_FREE_SHIFT
/** header parser registers **/
/* RX parser configuration register.
* DEFAULT: 0x1651004
*/
#define REG_HP_CFG 0x4140 /* header parser
configuration reg */
#define HP_CFG_PARSE_EN 0x00000001 /* enab header parsing */
#define HP_CFG_NUM_CPU_MASK 0x000000FC /* # processors
0 = 64. 0x3f = 63 */
#define HP_CFG_NUM_CPU_SHIFT 2
#define HP_CFG_SYN_INC_MASK 0x00000100 /* SYN bit won't increment
TCP seq # by one when
stored in FDBM */
#define HP_CFG_TCP_THRESH_MASK 0x000FFE00 /* # bytes of TCP data
needed to be considered
for reassembly */
#define HP_CFG_TCP_THRESH_SHIFT 9
/* access to RX Instruction RAM. 5-bit register/counter holds addr
* of 39 bit entry to be read/written. 32 LSB in _DATA_LOW. 7 MSB in _DATA_HI.
* RX_DMA_EN must be 0 for RX instr PIO access. DATA_HI should be last access
* of sequence.
* DEFAULT: undefined
*/
#define REG_HP_INSTR_RAM_ADDR 0x4144 /* HP instruction RAM
address */
#define HP_INSTR_RAM_ADDR_MASK 0x01F /* 5-bit mask */
#define REG_HP_INSTR_RAM_DATA_LOW 0x4148 /* HP instruction RAM
data low */
#define HP_INSTR_RAM_LOW_OUTMASK_MASK 0x0000FFFF
#define HP_INSTR_RAM_LOW_OUTMASK_SHIFT 0
#define HP_INSTR_RAM_LOW_OUTSHIFT_MASK 0x000F0000
#define HP_INSTR_RAM_LOW_OUTSHIFT_SHIFT 16
#define HP_INSTR_RAM_LOW_OUTEN_MASK 0x00300000
#define HP_INSTR_RAM_LOW_OUTEN_SHIFT 20
#define HP_INSTR_RAM_LOW_OUTARG_MASK 0xFFC00000
#define HP_INSTR_RAM_LOW_OUTARG_SHIFT 22
#define REG_HP_INSTR_RAM_DATA_MID 0x414C /* HP instruction RAM
data mid */
#define HP_INSTR_RAM_MID_OUTARG_MASK 0x00000003
#define HP_INSTR_RAM_MID_OUTARG_SHIFT 0
#define HP_INSTR_RAM_MID_OUTOP_MASK 0x0000003C
#define HP_INSTR_RAM_MID_OUTOP_SHIFT 2
#define HP_INSTR_RAM_MID_FNEXT_MASK 0x000007C0
#define HP_INSTR_RAM_MID_FNEXT_SHIFT 6
#define HP_INSTR_RAM_MID_FOFF_MASK 0x0003F800
#define HP_INSTR_RAM_MID_FOFF_SHIFT 11
#define HP_INSTR_RAM_MID_SNEXT_MASK 0x007C0000
#define HP_INSTR_RAM_MID_SNEXT_SHIFT 18
#define HP_INSTR_RAM_MID_SOFF_MASK 0x3F800000
#define HP_INSTR_RAM_MID_SOFF_SHIFT 23
#define HP_INSTR_RAM_MID_OP_MASK 0xC0000000
#define HP_INSTR_RAM_MID_OP_SHIFT 30
#define REG_HP_INSTR_RAM_DATA_HI 0x4150 /* HP instruction RAM
data high */
#define HP_INSTR_RAM_HI_VAL_MASK 0x0000FFFF
#define HP_INSTR_RAM_HI_VAL_SHIFT 0
#define HP_INSTR_RAM_HI_MASK_MASK 0xFFFF0000
#define HP_INSTR_RAM_HI_MASK_SHIFT 16
/* PIO access into RX Header parser data RAM and flow database.
* 11-bit register. Data fills the LSB portion of bus if less than 32 bits.
* DATA_RAM: write RAM_FDB_DATA with index to access DATA_RAM.
* RAM bytes = 4*(x - 1) + [3:0]. e.g., 0 -> [3:0], 31 -> [123:120]
* FLOWDB: write DATA_RAM_FDB register and then read/write FDB1-12 to access
* flow database.
* RX_DMA_EN must be 0 for RX parser RAM PIO access. RX Parser RAM data reg
* should be the last write access of the write sequence.
* DEFAULT: undefined
*/
#define REG_HP_DATA_RAM_FDB_ADDR 0x4154 /* HP data and FDB
RAM address */
#define HP_DATA_RAM_FDB_DATA_MASK 0x001F /* select 1 of 86 byte
locations in header
parser data ram to
read/write */
#define HP_DATA_RAM_FDB_FDB_MASK 0x3F00 /* 1 of 64 353-bit locations
in the flow database */
#define REG_HP_DATA_RAM_DATA 0x4158 /* HP data RAM data */
/* HP flow database registers: 1 - 12, 0x415C - 0x4188, 4 8-bit bytes
* FLOW_DB(1) = IP_SA[127:96], FLOW_DB(2) = IP_SA[95:64]
* FLOW_DB(3) = IP_SA[63:32], FLOW_DB(4) = IP_SA[31:0]
* FLOW_DB(5) = IP_DA[127:96], FLOW_DB(6) = IP_DA[95:64]
* FLOW_DB(7) = IP_DA[63:32], FLOW_DB(8) = IP_DA[31:0]
* FLOW_DB(9) = {TCP_SP[15:0],TCP_DP[15:0]}
* FLOW_DB(10) = bit 0 has value for flow valid
* FLOW_DB(11) = TCP_SEQ[63:32], FLOW_DB(12) = TCP_SEQ[31:0]
*/
#define REG_HP_FLOW_DB0 0x415C /* HP flow database 1 reg */
#define REG_HP_FLOW_DBN(x) (REG_HP_FLOW_DB0 + (x)*4)
/* diagnostics for RX Header Parser block.
* ASUN: the header parser state machine register is used for diagnostics
* purposes. however, the spec doesn't have any details on it.
*/
#define REG_HP_STATE_MACHINE 0x418C /* (ro) HP state machine */
#define REG_HP_STATUS0 0x4190 /* (ro) HP status 1 */
#define HP_STATUS0_SAP_MASK 0xFFFF0000 /* SAP */
#define HP_STATUS0_L3_OFF_MASK 0x0000FE00 /* L3 offset */
#define HP_STATUS0_LB_CPUNUM_MASK 0x000001F8 /* load balancing CPU
number */
#define HP_STATUS0_HRP_OPCODE_MASK 0x00000007 /* HRP opcode */
#define REG_HP_STATUS1 0x4194 /* (ro) HP status 2 */
#define HP_STATUS1_ACCUR2_MASK 0xE0000000 /* accu R2[6:4] */
#define HP_STATUS1_FLOWID_MASK 0x1F800000 /* flow id */
#define HP_STATUS1_TCP_OFF_MASK 0x007F0000 /* tcp payload offset */
#define HP_STATUS1_TCP_SIZE_MASK 0x0000FFFF /* tcp payload size */
#define REG_HP_STATUS2 0x4198 /* (ro) HP status 3 */
#define HP_STATUS2_ACCUR2_MASK 0xF0000000 /* accu R2[3:0] */
#define HP_STATUS2_CSUM_OFF_MASK 0x07F00000 /* checksum start
start offset */
#define HP_STATUS2_ACCUR1_MASK 0x000FE000 /* accu R1 */
#define HP_STATUS2_FORCE_DROP 0x00001000 /* force drop */
#define HP_STATUS2_BWO_REASSM 0x00000800 /* batching w/o
reassembly */
#define HP_STATUS2_JH_SPLIT_EN 0x00000400 /* jumbo header split
enable */
#define HP_STATUS2_FORCE_TCP_NOCHECK 0x00000200 /* force tcp no payload
check */
#define HP_STATUS2_DATA_MASK_ZERO 0x00000100 /* mask of data length
equal to zero */
#define HP_STATUS2_FORCE_TCP_CHECK 0x00000080 /* force tcp payload
chk */
#define HP_STATUS2_MASK_TCP_THRESH 0x00000040 /* mask of payload
threshold */
#define HP_STATUS2_NO_ASSIST 0x00000020 /* no assist */
#define HP_STATUS2_CTRL_PACKET_FLAG 0x00000010 /* control packet flag */
#define HP_STATUS2_TCP_FLAG_CHECK 0x00000008 /* tcp flag check */
#define HP_STATUS2_SYN_FLAG 0x00000004 /* syn flag */
#define HP_STATUS2_TCP_CHECK 0x00000002 /* tcp payload chk */
#define HP_STATUS2_TCP_NOCHECK 0x00000001 /* tcp no payload chk */
/* BIST for header parser(HP) and flow database memories (FDBM). set _START
* to start BIST. controller clears _START on completion. _START can also
* be cleared to force termination of BIST. a bit set indicates that that
* memory passed its BIST.
*/
#define REG_HP_RAM_BIST 0x419C /* HP RAM BIST reg */
#define HP_RAM_BIST_HP_DATA_PASS 0x80000000 /* HP data ram */
#define HP_RAM_BIST_HP_INSTR0_PASS 0x40000000 /* HP instr ram 0 */
#define HP_RAM_BIST_HP_INSTR1_PASS 0x20000000 /* HP instr ram 1 */
#define HP_RAM_BIST_HP_INSTR2_PASS 0x10000000 /* HP instr ram 2 */
#define HP_RAM_BIST_FDBM_AGE0_PASS 0x08000000 /* FDBM aging RAM0 */
#define HP_RAM_BIST_FDBM_AGE1_PASS 0x04000000 /* FDBM aging RAM1 */
#define HP_RAM_BIST_FDBM_FLOWID00_PASS 0x02000000 /* FDBM flowid RAM0
bank 0 */
#define HP_RAM_BIST_FDBM_FLOWID10_PASS 0x01000000 /* FDBM flowid RAM1
bank 0 */
#define HP_RAM_BIST_FDBM_FLOWID20_PASS 0x00800000 /* FDBM flowid RAM2
bank 0 */
#define HP_RAM_BIST_FDBM_FLOWID30_PASS 0x00400000 /* FDBM flowid RAM3
bank 0 */
#define HP_RAM_BIST_FDBM_FLOWID01_PASS 0x00200000 /* FDBM flowid RAM0
bank 1 */
#define HP_RAM_BIST_FDBM_FLOWID11_PASS 0x00100000 /* FDBM flowid RAM1
bank 2 */
#define HP_RAM_BIST_FDBM_FLOWID21_PASS 0x00080000 /* FDBM flowid RAM2
bank 1 */
#define HP_RAM_BIST_FDBM_FLOWID31_PASS 0x00040000 /* FDBM flowid RAM3
bank 1 */
#define HP_RAM_BIST_FDBM_TCPSEQ_PASS 0x00020000 /* FDBM tcp sequence
RAM */
#define HP_RAM_BIST_SUMMARY 0x00000002 /* all BIST tests */
#define HP_RAM_BIST_START 0x00000001 /* start/stop BIST */
/** MAC registers. **/
/* reset bits are set using a PIO write and self-cleared after the command
* execution has completed.
*/
#define REG_MAC_TX_RESET 0x6000 /* TX MAC software reset
command (default: 0x0) */
#define REG_MAC_RX_RESET 0x6004 /* RX MAC software reset
command (default: 0x0) */
/* execute a pause flow control frame transmission
DEFAULT: 0x0XXXX */
#define REG_MAC_SEND_PAUSE 0x6008 /* send pause command reg */
#define MAC_SEND_PAUSE_TIME_MASK 0x0000FFFF /* value of pause time
to be sent on network
in units of slot
times */
#define MAC_SEND_PAUSE_SEND 0x00010000 /* send pause flow ctrl
frame on network */
/* bit set indicates that event occurred. auto-cleared when status register
* is read and have corresponding mask bits in mask register. events will
* trigger an interrupt if the corresponding mask bit is 0.
* status register default: 0x00000000
* mask register default = 0xFFFFFFFF on reset
*/
#define REG_MAC_TX_STATUS 0x6010 /* TX MAC status reg */
#define MAC_TX_FRAME_XMIT 0x0001 /* successful frame
transmision */
#define MAC_TX_UNDERRUN 0x0002 /* terminated frame
transmission due to
data starvation in the
xmit data path */
#define MAC_TX_MAX_PACKET_ERR 0x0004 /* frame exceeds max allowed
length passed to TX MAC
by the DMA engine */
#define MAC_TX_COLL_NORMAL 0x0008 /* rollover of the normal
collision counter */
#define MAC_TX_COLL_EXCESS 0x0010 /* rollover of the excessive
collision counter */
#define MAC_TX_COLL_LATE 0x0020 /* rollover of the late
collision counter */
#define MAC_TX_COLL_FIRST 0x0040 /* rollover of the first
collision counter */
#define MAC_TX_DEFER_TIMER 0x0080 /* rollover of the defer
timer */
#define MAC_TX_PEAK_ATTEMPTS 0x0100 /* rollover of the peak
attempts counter */
#define REG_MAC_RX_STATUS 0x6014 /* RX MAC status reg */
#define MAC_RX_FRAME_RECV 0x0001 /* successful receipt of
a frame */
#define MAC_RX_OVERFLOW 0x0002 /* dropped frame due to
RX FIFO overflow */
#define MAC_RX_FRAME_COUNT 0x0004 /* rollover of receive frame
counter */
#define MAC_RX_ALIGN_ERR 0x0008 /* rollover of alignment
error counter */
#define MAC_RX_CRC_ERR 0x0010 /* rollover of crc error
counter */
#define MAC_RX_LEN_ERR 0x0020 /* rollover of length
error counter */
#define MAC_RX_VIOL_ERR 0x0040 /* rollover of code
violation error */
/* DEFAULT: 0xXXXX0000 on reset */
#define REG_MAC_CTRL_STATUS 0x6018 /* MAC control status reg */
#define MAC_CTRL_PAUSE_RECEIVED 0x00000001 /* successful
reception of a
pause control
frame */
#define MAC_CTRL_PAUSE_STATE 0x00000002 /* MAC has made a
transition from
"not paused" to
"paused" */
#define MAC_CTRL_NOPAUSE_STATE 0x00000004 /* MAC has made a
transition from
"paused" to "not
paused" */
#define MAC_CTRL_PAUSE_TIME_MASK 0xFFFF0000 /* value of pause time
operand that was
received in the last
pause flow control
frame */
/* layout identical to TX MAC[8:0] */
#define REG_MAC_TX_MASK 0x6020 /* TX MAC mask reg */
/* layout identical to RX MAC[6:0] */
#define REG_MAC_RX_MASK 0x6024 /* RX MAC mask reg */
/* layout identical to CTRL MAC[2:0] */
#define REG_MAC_CTRL_MASK 0x6028 /* MAC control mask reg */
/* to ensure proper operation, CFG_EN must be cleared to 0 and a delay
* imposed before writes to other bits in the TX_MAC_CFG register or any of
* the MAC parameters is performed. delay dependent upon time required to
* transmit a maximum size frame (= MAC_FRAMESIZE_MAX*8/Mbps). e.g.,
* the delay for a 1518-byte frame on a 100Mbps network is 125us.
* alternatively, just poll TX_CFG_EN until it reads back as 0.
* NOTE: on half-duplex 1Gbps, TX_CFG_CARRIER_EXTEND and
* RX_CFG_CARRIER_EXTEND should be set and the SLOT_TIME register should
* be 0x200 (slot time of 512 bytes)
*/
#define REG_MAC_TX_CFG 0x6030 /* TX MAC config reg */
#define MAC_TX_CFG_EN 0x0001 /* enable TX MAC. 0 will
force TXMAC state
machine to remain in
idle state or to
transition to idle state
on completion of an
ongoing packet. */
#define MAC_TX_CFG_IGNORE_CARRIER 0x0002 /* disable CSMA/CD deferral
process. set to 1 when
full duplex and 0 when
half duplex */
#define MAC_TX_CFG_IGNORE_COLL 0x0004 /* disable CSMA/CD backoff
algorithm. set to 1 when
full duplex and 0 when
half duplex */
#define MAC_TX_CFG_IPG_EN 0x0008 /* enable extension of the
Rx-to-TX IPG. after
receiving a frame, TX
MAC will reset its
deferral process to
carrier sense for the
amount of time = IPG0 +
IPG1 and commit to
transmission for time
specified in IPG2. when
0 or when xmitting frames
back-to-pack (Tx-to-Tx
IPG), TX MAC ignores
IPG0 and will only use
IPG1 for deferral time.
IPG2 still used. */
#define MAC_TX_CFG_NEVER_GIVE_UP_EN 0x0010 /* TX MAC will not easily
give up on frame
xmission. if backoff
algorithm reaches the
ATTEMPT_LIMIT, it will
clear attempts counter
and continue trying to
send the frame as
specified by
GIVE_UP_LIM. when 0,
TX MAC will execute
standard CSMA/CD prot. */
#define MAC_TX_CFG_NEVER_GIVE_UP_LIM 0x0020 /* when set, TX MAC will
continue to try to xmit
until successful. when
0, TX MAC will continue
to try xmitting until
successful or backoff
algorithm reaches
ATTEMPT_LIMIT*16 */
#define MAC_TX_CFG_NO_BACKOFF 0x0040 /* modify CSMA/CD to disable
backoff algorithm. TX
MAC will not back off
after a xmission attempt
that resulted in a
collision. */
#define MAC_TX_CFG_SLOW_DOWN 0x0080 /* modify CSMA/CD so that
deferral process is reset
in response to carrier
sense during the entire
duration of IPG. TX MAC
will only commit to frame
xmission after frame
xmission has actually
begun. */
#define MAC_TX_CFG_NO_FCS 0x0100 /* TX MAC will not generate
CRC for all xmitted
packets. when clear, CRC
generation is dependent
upon NO_CRC bit in the
xmit control word from
TX DMA */
#define MAC_TX_CFG_CARRIER_EXTEND 0x0200 /* enables xmit part of the
carrier extension
feature. this allows for
longer collision domains
by extending the carrier
and collision window
from the end of FCS until
the end of the slot time
if necessary. Required
for half-duplex at 1Gbps,
clear otherwise. */
/* when CRC is not stripped, reassembly packets will not contain the CRC.
* these will be stripped by HRP because it reassembles layer 4 data, and the
* CRC is layer 2. however, non-reassembly packets will still contain the CRC
* when passed to the host. to ensure proper operation, need to wait 3.2ms
* after clearing RX_CFG_EN before writing to any other RX MAC registers
* or other MAC parameters. alternatively, poll RX_CFG_EN until it clears
* to 0. similary, HASH_FILTER_EN and ADDR_FILTER_EN have the same
* restrictions as CFG_EN.
*/
#define REG_MAC_RX_CFG 0x6034 /* RX MAC config reg */
#define MAC_RX_CFG_EN 0x0001 /* enable RX MAC */
#define MAC_RX_CFG_STRIP_PAD 0x0002 /* always program to 0.
feature not supported */
#define MAC_RX_CFG_STRIP_FCS 0x0004 /* RX MAC will strip the
last 4 bytes of a
received frame. */
#define MAC_RX_CFG_PROMISC_EN 0x0008 /* promiscuous mode */
#define MAC_RX_CFG_PROMISC_GROUP_EN 0x0010 /* accept all valid
multicast frames (group
bit in DA field set) */
#define MAC_RX_CFG_HASH_FILTER_EN 0x0020 /* use hash table to filter
multicast addresses */
#define MAC_RX_CFG_ADDR_FILTER_EN 0x0040 /* cause RX MAC to use
address filtering regs
to filter both unicast
and multicast
addresses */
#define MAC_RX_CFG_DISABLE_DISCARD 0x0080 /* pass errored frames to
RX DMA by setting BAD
bit but not Abort bit
in the status. CRC,
framing, and length errs
will not increment
error counters. frames
which don't match dest
addr will be passed up
w/ BAD bit set. */
#define MAC_RX_CFG_CARRIER_EXTEND 0x0100 /* enable reception of
packet bursts generated
by carrier extension
with packet bursting
senders. only applies
to half-duplex 1Gbps */
/* DEFAULT: 0x0 */
#define REG_MAC_CTRL_CFG 0x6038 /* MAC control config reg */
#define MAC_CTRL_CFG_SEND_PAUSE_EN 0x0001 /* respond to requests for
sending pause flow ctrl
frames */
#define MAC_CTRL_CFG_RECV_PAUSE_EN 0x0002 /* respond to received
pause flow ctrl frames */
#define MAC_CTRL_CFG_PASS_CTRL 0x0004 /* pass valid MAC ctrl
packets to RX DMA */
/* to ensure proper operation, a global initialization sequence should be
* performed when a loopback config is entered or exited. if programmed after
* a hw or global sw reset, RX/TX MAC software reset and initialization
* should be done to ensure stable clocking.
* DEFAULT: 0x0
*/
#define REG_MAC_XIF_CFG 0x603C /* XIF config reg */
#define MAC_XIF_TX_MII_OUTPUT_EN 0x0001 /* enable output drivers
on MII xmit bus */
#define MAC_XIF_MII_INT_LOOPBACK 0x0002 /* loopback GMII xmit data
path to GMII recv data
path. phy mode register
clock selection must be
set to GMII mode and
GMII_MODE should be set
to 1. in loopback mode,
REFCLK will drive the
entire mac core. 0 for
normal operation. */
#define MAC_XIF_DISABLE_ECHO 0x0004 /* disables receive data
path during packet
xmission. clear to 0
in any full duplex mode,
in any loopback mode,
or in half-duplex SERDES
or SLINK modes. set when
in half-duplex when
using external phy. */
#define MAC_XIF_GMII_MODE 0x0008 /* MAC operates with GMII
clocks and datapath */
#define MAC_XIF_MII_BUFFER_OUTPUT_EN 0x0010 /* MII_BUF_EN pin. enable
external tristate buffer
on the MII receive
bus. */
#define MAC_XIF_LINK_LED 0x0020 /* LINKLED# active (low) */
#define MAC_XIF_FDPLX_LED 0x0040 /* FDPLXLED# active (low) */
#define REG_MAC_IPG0 0x6040 /* inter-packet gap0 reg.
recommended: 0x00 */
#define REG_MAC_IPG1 0x6044 /* inter-packet gap1 reg
recommended: 0x08 */
#define REG_MAC_IPG2 0x6048 /* inter-packet gap2 reg
recommended: 0x04 */
#define REG_MAC_SLOT_TIME 0x604C /* slot time reg
recommended: 0x40 */
#define REG_MAC_FRAMESIZE_MIN 0x6050 /* min frame size reg
recommended: 0x40 */
/* FRAMESIZE_MAX holds both the max frame size as well as the max burst size.
* recommended value: 0x2000.05EE
*/
#define REG_MAC_FRAMESIZE_MAX 0x6054 /* max frame size reg */
#define MAC_FRAMESIZE_MAX_BURST_MASK 0x3FFF0000 /* max burst size */
#define MAC_FRAMESIZE_MAX_BURST_SHIFT 16
#define MAC_FRAMESIZE_MAX_FRAME_MASK 0x00007FFF /* max frame size */
#define MAC_FRAMESIZE_MAX_FRAME_SHIFT 0
#define REG_MAC_PA_SIZE 0x6058 /* PA size reg. number of
preamble bytes that the
TX MAC will xmit at the
beginning of each frame
value should be 2 or
greater. recommended
value: 0x07 */
#define REG_MAC_JAM_SIZE 0x605C /* jam size reg. duration
of jam in units of media
byte time. recommended
value: 0x04 */
#define REG_MAC_ATTEMPT_LIMIT 0x6060 /* attempt limit reg. #
of attempts TX MAC will
make to xmit a frame
before it resets its
attempts counter. after
the limit has been
reached, TX MAC may or
may not drop the frame
dependent upon value
in TX_MAC_CFG.
recommended
value: 0x10 */
#define REG_MAC_CTRL_TYPE 0x6064 /* MAC control type reg.
type field of a MAC
ctrl frame. recommended
value: 0x8808 */
/* mac address registers: 0 - 44, 0x6080 - 0x6130, 4 8-bit bytes.
* register contains comparison
* 0 16 MSB of primary MAC addr [47:32] of DA field
* 1 16 middle bits "" [31:16] of DA field
* 2 16 LSB "" [15:0] of DA field
* 3*x 16MSB of alt MAC addr 1-15 [47:32] of DA field
* 4*x 16 middle bits "" [31:16]
* 5*x 16 LSB "" [15:0]
* 42 16 MSB of MAC CTRL addr [47:32] of DA.
* 43 16 middle bits "" [31:16]
* 44 16 LSB "" [15:0]
* MAC CTRL addr must be the reserved multicast addr for MAC CTRL frames.
* if there is a match, MAC will set the bit for alternative address
* filter pass [15]
* here is the map of registers given MAC address notation: a:b:c:d:e:f
* ab cd ef
* primary addr reg 2 reg 1 reg 0
* alt addr 1 reg 5 reg 4 reg 3
* alt addr x reg 5*x reg 4*x reg 3*x
* ctrl addr reg 44 reg 43 reg 42
*/
#define REG_MAC_ADDR0 0x6080 /* MAC address 0 reg */
#define REG_MAC_ADDRN(x) (REG_MAC_ADDR0 + (x)*4)
#define REG_MAC_ADDR_FILTER0 0x614C /* address filter 0 reg
[47:32] */
#define REG_MAC_ADDR_FILTER1 0x6150 /* address filter 1 reg
[31:16] */
#define REG_MAC_ADDR_FILTER2 0x6154 /* address filter 2 reg
[15:0] */
#define REG_MAC_ADDR_FILTER2_1_MASK 0x6158 /* address filter 2 and 1
mask reg. 8-bit reg
contains nibble mask for
reg 2 and 1. */
#define REG_MAC_ADDR_FILTER0_MASK 0x615C /* address filter 0 mask
reg */
/* hash table registers: 0 - 15, 0x6160 - 0x619C, 4 8-bit bytes
* 16-bit registers contain bits of the hash table.
* reg x -> [16*(15 - x) + 15 : 16*(15 - x)].
* e.g., 15 -> [15:0], 0 -> [255:240]
*/
#define REG_MAC_HASH_TABLE0 0x6160 /* hash table 0 reg */
#define REG_MAC_HASH_TABLEN(x) (REG_MAC_HASH_TABLE0 + (x)*4)
/* statistics registers. these registers generate an interrupt on
* overflow. recommended initialization: 0x0000. most are 16-bits except
* for PEAK_ATTEMPTS register which is 8 bits.
*/
#define REG_MAC_COLL_NORMAL 0x61A0 /* normal collision
counter. */
#define REG_MAC_COLL_FIRST 0x61A4 /* first attempt
successful collision
counter */
#define REG_MAC_COLL_EXCESS 0x61A8 /* excessive collision
counter */
#define REG_MAC_COLL_LATE 0x61AC /* late collision counter */
#define REG_MAC_TIMER_DEFER 0x61B0 /* defer timer. time base
is the media byte
clock/256 */
#define REG_MAC_ATTEMPTS_PEAK 0x61B4 /* peak attempts reg */
#define REG_MAC_RECV_FRAME 0x61B8 /* receive frame counter */
#define REG_MAC_LEN_ERR 0x61BC /* length error counter */
#define REG_MAC_ALIGN_ERR 0x61C0 /* alignment error counter */
#define REG_MAC_FCS_ERR 0x61C4 /* FCS error counter */
#define REG_MAC_RX_CODE_ERR 0x61C8 /* RX code violation
error counter */
/* misc registers */
#define REG_MAC_RANDOM_SEED 0x61CC /* random number seed reg.
10-bit register used as a
seed for the random number
generator for the CSMA/CD
backoff algorithm. only
programmed after power-on
reset and should be a
random value which has a
high likelihood of being
unique for each MAC
attached to a network
segment (e.g., 10 LSB of
MAC address) */
/* ASUN: there's a PAUSE_TIMER (ro) described, but it's not in the address
* map
*/
/* 27-bit register has the current state for key state machines in the MAC */
#define REG_MAC_STATE_MACHINE 0x61D0 /* (ro) state machine reg */
#define MAC_SM_RLM_MASK 0x07800000
#define MAC_SM_RLM_SHIFT 23
#define MAC_SM_RX_FC_MASK 0x00700000
#define MAC_SM_RX_FC_SHIFT 20
#define MAC_SM_TLM_MASK 0x000F0000
#define MAC_SM_TLM_SHIFT 16
#define MAC_SM_ENCAP_SM_MASK 0x0000F000
#define MAC_SM_ENCAP_SM_SHIFT 12
#define MAC_SM_TX_REQ_MASK 0x00000C00
#define MAC_SM_TX_REQ_SHIFT 10
#define MAC_SM_TX_FC_MASK 0x000003C0
#define MAC_SM_TX_FC_SHIFT 6
#define MAC_SM_FIFO_WRITE_SEL_MASK 0x00000038
#define MAC_SM_FIFO_WRITE_SEL_SHIFT 3
#define MAC_SM_TX_FIFO_EMPTY_MASK 0x00000007
#define MAC_SM_TX_FIFO_EMPTY_SHIFT 0
/** MIF registers. the MIF can be programmed in either bit-bang or
* frame mode.
**/
#define REG_MIF_BIT_BANG_CLOCK 0x6200 /* MIF bit-bang clock.
1 -> 0 will generate a
rising edge. 0 -> 1 will
generate a falling edge. */
#define REG_MIF_BIT_BANG_DATA 0x6204 /* MIF bit-bang data. 1-bit
register generates data */
#define REG_MIF_BIT_BANG_OUTPUT_EN 0x6208 /* MIF bit-bang output
enable. enable when
xmitting data from MIF to
transceiver. */
/* 32-bit register serves as an instruction register when the MIF is
* programmed in frame mode. load this register w/ a valid instruction
* (as per IEEE 802.3u MII spec). poll this register to check for instruction
* execution completion. during a read operation, this register will also
* contain the 16-bit data returned by the tranceiver. unless specified
* otherwise, fields are considered "don't care" when polling for
* completion.
*/
#define REG_MIF_FRAME 0x620C /* MIF frame/output reg */
#define MIF_FRAME_START_MASK 0xC0000000 /* start of frame.
load w/ 01 when
issuing an instr */
#define MIF_FRAME_ST 0x40000000 /* STart of frame */
#define MIF_FRAME_OPCODE_MASK 0x30000000 /* opcode. 01 for a
write. 10 for a
read */
#define MIF_FRAME_OP_READ 0x20000000 /* read OPcode */
#define MIF_FRAME_OP_WRITE 0x10000000 /* write OPcode */
#define MIF_FRAME_PHY_ADDR_MASK 0x0F800000 /* phy address. when
issuing an instr,
this field should be
loaded w/ the XCVR
addr */
#define MIF_FRAME_PHY_ADDR_SHIFT 23
#define MIF_FRAME_REG_ADDR_MASK 0x007C0000 /* register address.
when issuing an instr,
addr of register
to be read/written */
#define MIF_FRAME_REG_ADDR_SHIFT 18
#define MIF_FRAME_TURN_AROUND_MSB 0x00020000 /* turn around, MSB.
when issuing an instr,
set this bit to 1 */
#define MIF_FRAME_TURN_AROUND_LSB 0x00010000 /* turn around, LSB.
when issuing an instr,
set this bit to 0.
when polling for
completion, 1 means
that instr execution
has been completed */
#define MIF_FRAME_DATA_MASK 0x0000FFFF /* instruction payload
load with 16-bit data
to be written in
transceiver reg for a
write. doesn't matter
in a read. when
polling for
completion, field is
"don't care" for write
and 16-bit data
returned by the
transceiver for a
read (if valid bit
is set) */
#define REG_MIF_CFG 0x6210 /* MIF config reg */
#define MIF_CFG_PHY_SELECT 0x0001 /* 1 -> select MDIO_1
0 -> select MDIO_0 */
#define MIF_CFG_POLL_EN 0x0002 /* enable polling
mechanism. if set,
BB_MODE should be 0 */
#define MIF_CFG_BB_MODE 0x0004 /* 1 -> bit-bang mode
0 -> frame mode */
#define MIF_CFG_POLL_REG_MASK 0x00F8 /* register address to be
used by polling mode.
only meaningful if POLL_EN
is set to 1 */
#define MIF_CFG_POLL_REG_SHIFT 3
#define MIF_CFG_MDIO_0 0x0100 /* (ro) dual purpose.
when MDIO_0 is idle,
1 -> tranceiver is
connected to MDIO_0.
when MIF is communicating
w/ MDIO_0 in bit-bang
mode, this bit indicates
the incoming bit stream
during a read op */
#define MIF_CFG_MDIO_1 0x0200 /* (ro) dual purpose.
when MDIO_1 is idle,
1 -> transceiver is
connected to MDIO_1.
when MIF is communicating
w/ MDIO_1 in bit-bang
mode, this bit indicates
the incoming bit stream
during a read op */
#define MIF_CFG_POLL_PHY_MASK 0x7C00 /* tranceiver address to
be polled */
#define MIF_CFG_POLL_PHY_SHIFT 10
/* 16-bit register used to determine which bits in the POLL_STATUS portion of
* the MIF_STATUS register will cause an interrupt. if a mask bit is 0,
* corresponding bit of the POLL_STATUS will generate a MIF interrupt when
* set. DEFAULT: 0xFFFF
*/
#define REG_MIF_MASK 0x6214 /* MIF mask reg */
/* 32-bit register used when in poll mode. auto-cleared after being read */
#define REG_MIF_STATUS 0x6218 /* MIF status reg */
#define MIF_STATUS_POLL_DATA_MASK 0xFFFF0000 /* poll data contains
the "latest image"
update of the XCVR
reg being read */
#define MIF_STATUS_POLL_DATA_SHIFT 16
#define MIF_STATUS_POLL_STATUS_MASK 0x0000FFFF /* poll status indicates
which bits in the
POLL_DATA field have
changed since the
MIF_STATUS reg was
last read */
#define MIF_STATUS_POLL_STATUS_SHIFT 0
/* 7-bit register has current state for all state machines in the MIF */
#define REG_MIF_STATE_MACHINE 0x621C /* MIF state machine reg */
#define MIF_SM_CONTROL_MASK 0x07 /* control state machine
state */
#define MIF_SM_EXECUTION_MASK 0x60 /* execution state machine
state */
/** PCS/Serialink. the following registers are equivalent to the standard
* MII management registers except that they're directly mapped in
* Cassini's register space.
**/
/* the auto-negotiation enable bit should be programmed the same at
* the link partner as in the local device to enable auto-negotiation to
* complete. when that bit is reprogrammed, auto-neg/manual config is
* restarted automatically.
* DEFAULT: 0x1040
*/
#define REG_PCS_MII_CTRL 0x9000 /* PCS MII control reg */
#define PCS_MII_CTRL_1000_SEL 0x0040 /* reads 1. ignored on
writes */
#define PCS_MII_CTRL_COLLISION_TEST 0x0080 /* COL signal at the PCS
to MAC interface is
activated regardless
of activity */
#define PCS_MII_CTRL_DUPLEX 0x0100 /* forced 0x0. PCS
behaviour same for
half and full dplx */
#define PCS_MII_RESTART_AUTONEG 0x0200 /* self clearing.
restart auto-
negotiation */
#define PCS_MII_ISOLATE 0x0400 /* read as 0. ignored
on writes */
#define PCS_MII_POWER_DOWN 0x0800 /* read as 0. ignored
on writes */
#define PCS_MII_AUTONEG_EN 0x1000 /* default 1. PCS goes
through automatic
link config before it
can be used. when 0,
link can be used
w/out any link config
phase */
#define PCS_MII_10_100_SEL 0x2000 /* read as 0. ignored on
writes */
#define PCS_MII_RESET 0x8000 /* reset PCS. self-clears
when done */
/* DEFAULT: 0x0108 */
#define REG_PCS_MII_STATUS 0x9004 /* PCS MII status reg */
#define PCS_MII_STATUS_EXTEND_CAP 0x0001 /* reads 0 */
#define PCS_MII_STATUS_JABBER_DETECT 0x0002 /* reads 0 */
#define PCS_MII_STATUS_LINK_STATUS 0x0004 /* 1 -> link up.
0 -> link down. 0 is
latched so that 0 is
kept until read. read
2x to determine if the
link has gone up again */
#define PCS_MII_STATUS_AUTONEG_ABLE 0x0008 /* reads 1 (able to perform
auto-neg) */
#define PCS_MII_STATUS_REMOTE_FAULT 0x0010 /* 1 -> remote fault detected
from received link code
word. only valid after
auto-neg completed */
#define PCS_MII_STATUS_AUTONEG_COMP 0x0020 /* 1 -> auto-negotiation
completed
0 -> auto-negotiation not
completed */
#define PCS_MII_STATUS_EXTEND_STATUS 0x0100 /* reads as 1. used as an
indication that this is
a 1000 Base-X PHY. writes
to it are ignored */
/* used during auto-negotiation.
* DEFAULT: 0x00E0
*/
#define REG_PCS_MII_ADVERT 0x9008 /* PCS MII advertisement
reg */
#define PCS_MII_ADVERT_FD 0x0020 /* advertise full duplex
1000 Base-X */
#define PCS_MII_ADVERT_HD 0x0040 /* advertise half-duplex
1000 Base-X */
#define PCS_MII_ADVERT_SYM_PAUSE 0x0080 /* advertise PAUSE
symmetric capability */
#define PCS_MII_ADVERT_ASYM_PAUSE 0x0100 /* advertises PAUSE
asymmetric capability */
#define PCS_MII_ADVERT_RF_MASK 0x3000 /* remote fault. write bit13
to optionally indicate to
link partner that chip is
going off-line. bit12 will
get set when signal
detect == FAIL and will
remain set until
successful negotiation */
#define PCS_MII_ADVERT_ACK 0x4000 /* (ro) */
#define PCS_MII_ADVERT_NEXT_PAGE 0x8000 /* (ro) forced 0x0 */
/* contents updated as a result of autonegotiation. layout and definitions
* identical to PCS_MII_ADVERT
*/
#define REG_PCS_MII_LPA 0x900C /* PCS MII link partner
ability reg */
#define PCS_MII_LPA_FD PCS_MII_ADVERT_FD
#define PCS_MII_LPA_HD PCS_MII_ADVERT_HD
#define PCS_MII_LPA_SYM_PAUSE PCS_MII_ADVERT_SYM_PAUSE
#define PCS_MII_LPA_ASYM_PAUSE PCS_MII_ADVERT_ASYM_PAUSE
#define PCS_MII_LPA_RF_MASK PCS_MII_ADVERT_RF_MASK
#define PCS_MII_LPA_ACK PCS_MII_ADVERT_ACK
#define PCS_MII_LPA_NEXT_PAGE PCS_MII_ADVERT_NEXT_PAGE
/* DEFAULT: 0x0 */
#define REG_PCS_CFG 0x9010 /* PCS config reg */
#define PCS_CFG_EN 0x01 /* enable PCS. must be
0 when modifying
PCS_MII_ADVERT */
#define PCS_CFG_SD_OVERRIDE 0x02 /* sets signal detect to
OK. bit is
non-resettable */
#define PCS_CFG_SD_ACTIVE_LOW 0x04 /* changes interpretation
of optical signal to make
signal detect okay when
signal is low */
#define PCS_CFG_JITTER_STUDY_MASK 0x18 /* used to make jitter
measurements. a single
code group is xmitted
regularly.
0x0 = normal operation
0x1 = high freq test
pattern, D21.5
0x2 = low freq test
pattern, K28.7
0x3 = reserved */
#define PCS_CFG_10MS_TIMER_OVERRIDE 0x20 /* shortens 10-20ms auto-
negotiation timer to
a few cycles for test
purposes */
/* used for diagnostic purposes. bits 20-22 autoclear on read */
#define REG_PCS_STATE_MACHINE 0x9014 /* (ro) PCS state machine
and diagnostic reg */
#define PCS_SM_TX_STATE_MASK 0x0000000F /* 0 and 1 indicate
xmission of idle.
otherwise, xmission of
a packet */
#define PCS_SM_RX_STATE_MASK 0x000000F0 /* 0 indicates reception
of idle. otherwise,
reception of packet */
#define PCS_SM_WORD_SYNC_STATE_MASK 0x00000700 /* 0 indicates loss of
sync */
#define PCS_SM_SEQ_DETECT_STATE_MASK 0x00001800 /* cycling through 0-3
indicates reception of
Config codes. cycling
through 0-1 indicates
reception of idles */
#define PCS_SM_LINK_STATE_MASK 0x0001E000
#define SM_LINK_STATE_UP 0x00016000 /* link state is up */
#define PCS_SM_LOSS_LINK_C 0x00100000 /* loss of link due to
recept of Config
codes */
#define PCS_SM_LOSS_LINK_SYNC 0x00200000 /* loss of link due to
loss of sync */
#define PCS_SM_LOSS_SIGNAL_DETECT 0x00400000 /* signal detect goes
from OK to FAIL. bit29
will also be set if
this is set */
#define PCS_SM_NO_LINK_BREAKLINK 0x01000000 /* link not up due to
receipt of breaklink
C codes from partner.
C codes w/ 0 content
received triggering
start/restart of
autonegotiation.
should be sent for
no longer than 20ms */
#define PCS_SM_NO_LINK_SERDES 0x02000000 /* serdes being
initialized. see serdes
state reg */
#define PCS_SM_NO_LINK_C 0x04000000 /* C codes not stable or
not received */
#define PCS_SM_NO_LINK_SYNC 0x08000000 /* word sync not
achieved */
#define PCS_SM_NO_LINK_WAIT_C 0x10000000 /* waiting for C codes
w/ ack bit set */
#define PCS_SM_NO_LINK_NO_IDLE 0x20000000 /* link partner continues
to send C codes
instead of idle
symbols or pkt data */
/* this register indicates interrupt changes in specific PCS MII status bits.
* PCS_INT may be masked at the ISR level. only a single bit is implemented
* for link status change.
*/
#define REG_PCS_INTR_STATUS 0x9018 /* PCS interrupt status */
#define PCS_INTR_STATUS_LINK_CHANGE 0x04 /* link status has changed
since last read */
/* control which network interface is used. no more than one bit should
* be set.
* DEFAULT: none
*/
#define REG_PCS_DATAPATH_MODE 0x9050 /* datapath mode reg */
#define PCS_DATAPATH_MODE_MII 0x00 /* PCS is not used and
MII/GMII is selected.
selection between MII and
GMII is controlled by
XIF_CFG */
#define PCS_DATAPATH_MODE_SERDES 0x02 /* PCS is used via the
10-bit interface */
/* input to serdes chip or serialink block */
#define REG_PCS_SERDES_CTRL 0x9054 /* serdes control reg */
#define PCS_SERDES_CTRL_LOOPBACK 0x01 /* enable loopback on
serdes interface */
#define PCS_SERDES_CTRL_SYNCD_EN 0x02 /* enable sync carrier
detection. should be
0x0 for normal
operation */
#define PCS_SERDES_CTRL_LOCKREF 0x04 /* frequency-lock RBC[0:1]
to REFCLK when set.
when clear, receiver
clock locks to incoming
serial data */
/* multiplex test outputs into the PROM address (PA_3 through PA_0) pins.
* should be 0x0 for normal operations.
* 0b000 normal operation, PROM address[3:0] selected
* 0b001 rxdma req, rxdma ack, rxdma ready, rxdma read
* 0b010 rxmac req, rx ack, rx tag, rx clk shared
* 0b011 txmac req, tx ack, tx tag, tx retry req
* 0b100 tx tp3, tx tp2, tx tp1, tx tp0
* 0b101 R period RX, R period TX, R period HP, R period BIM
* DEFAULT: 0x0
*/
#define REG_PCS_SHARED_OUTPUT_SEL 0x9058 /* shared output select */
#define PCS_SOS_PROM_ADDR_MASK 0x0007
/* used for diagnostics. this register indicates progress of the SERDES
* boot up.
* 0b00 undergoing reset
* 0b01 waiting 500us while lockrefn is asserted
* 0b10 waiting for comma detect
* 0b11 receive data is synchronized
* DEFAULT: 0x0
*/
#define REG_PCS_SERDES_STATE 0x905C /* (ro) serdes state */
#define PCS_SERDES_STATE_MASK 0x03
/* used for diagnostics. indicates number of packets transmitted or received.
* counters rollover w/out generating an interrupt.
* DEFAULT: 0x0
*/
#define REG_PCS_PACKET_COUNT 0x9060 /* (ro) PCS packet counter */
#define PCS_PACKET_COUNT_TX 0x000007FF /* pkts xmitted by PCS */
#define PCS_PACKET_COUNT_RX 0x07FF0000 /* pkts recvd by PCS
whether they
encountered an error
or not */
/** LocalBus Devices. the following provides run-time access to the
* Cassini's PROM
***/
#define REG_EXPANSION_ROM_RUN_START 0x100000 /* expansion rom run time
access */
#define REG_EXPANSION_ROM_RUN_END 0x17FFFF
#define REG_SECOND_LOCALBUS_START 0x180000 /* secondary local bus
device */
#define REG_SECOND_LOCALBUS_END 0x1FFFFF
/* entropy device */
#define REG_ENTROPY_START REG_SECOND_LOCALBUS_START
#define REG_ENTROPY_DATA (REG_ENTROPY_START + 0x00)
#define REG_ENTROPY_STATUS (REG_ENTROPY_START + 0x04)
#define ENTROPY_STATUS_DRDY 0x01
#define ENTROPY_STATUS_BUSY 0x02
#define ENTROPY_STATUS_CIPHER 0x04
#define ENTROPY_STATUS_BYPASS_MASK 0x18
#define REG_ENTROPY_MODE (REG_ENTROPY_START + 0x05)
#define ENTROPY_MODE_KEY_MASK 0x07
#define ENTROPY_MODE_ENCRYPT 0x40
#define REG_ENTROPY_RAND_REG (REG_ENTROPY_START + 0x06)
#define REG_ENTROPY_RESET (REG_ENTROPY_START + 0x07)
#define ENTROPY_RESET_DES_IO 0x01
#define ENTROPY_RESET_STC_MODE 0x02
#define ENTROPY_RESET_KEY_CACHE 0x04
#define ENTROPY_RESET_IV 0x08
#define REG_ENTROPY_IV (REG_ENTROPY_START + 0x08)
#define REG_ENTROPY_KEY0 (REG_ENTROPY_START + 0x10)
#define REG_ENTROPY_KEYN(x) (REG_ENTROPY_KEY0 + 4*(x))
/* phys of interest w/ their special mii registers */
#define PHY_LUCENT_B0 0x00437421
#define LUCENT_MII_REG 0x1F
#define PHY_NS_DP83065 0x20005c78
#define DP83065_MII_MEM 0x16
#define DP83065_MII_REGD 0x1D
#define DP83065_MII_REGE 0x1E
#define PHY_BROADCOM_5411 0x00206071
#define PHY_BROADCOM_B0 0x00206050
#define BROADCOM_MII_REG4 0x14
#define BROADCOM_MII_REG5 0x15
#define BROADCOM_MII_REG7 0x17
#define BROADCOM_MII_REG8 0x18
#define CAS_MII_ANNPTR 0x07
#define CAS_MII_ANNPRR 0x08
#define CAS_MII_1000_CTRL 0x09
#define CAS_MII_1000_STATUS 0x0A
#define CAS_MII_1000_EXTEND 0x0F
#define CAS_BMSR_1000_EXTEND 0x0100 /* supports 1000Base-T extended status */
/*
* if autoneg is disabled, here's the table:
* BMCR_SPEED100 = 100Mbps
* BMCR_SPEED1000 = 1000Mbps
* ~(BMCR_SPEED100 | BMCR_SPEED1000) = 10Mbps
*/
#define CAS_BMCR_SPEED1000 0x0040 /* Select 1000Mbps */
#define CAS_ADVERTISE_1000HALF 0x0100
#define CAS_ADVERTISE_1000FULL 0x0200
#define CAS_ADVERTISE_PAUSE 0x0400
#define CAS_ADVERTISE_ASYM_PAUSE 0x0800
/* regular lpa register */
#define CAS_LPA_PAUSE CAS_ADVERTISE_PAUSE
#define CAS_LPA_ASYM_PAUSE CAS_ADVERTISE_ASYM_PAUSE
/* 1000_STATUS register */
#define CAS_LPA_1000HALF 0x0400
#define CAS_LPA_1000FULL 0x0800
#define CAS_EXTEND_1000XFULL 0x8000
#define CAS_EXTEND_1000XHALF 0x4000
#define CAS_EXTEND_1000TFULL 0x2000
#define CAS_EXTEND_1000THALF 0x1000
/* cassini header parser firmware */
typedef struct cas_hp_inst {
const char *note;
u16 mask, val;
u8 op;
u8 soff, snext; /* if match succeeds, new offset and match */
u8 foff, fnext; /* if match fails, new offset and match */
/* output info */
u8 outop; /* output opcode */
u16 outarg; /* output argument */
u8 outenab; /* output enable: 0 = not, 1 = if match
2 = if !match, 3 = always */
u8 outshift; /* barrel shift right, 4 bits */
u16 outmask;
} cas_hp_inst_t;
/* comparison */
#define OP_EQ 0 /* packet == value */
#define OP_LT 1 /* packet < value */
#define OP_GT 2 /* packet > value */
#define OP_NP 3 /* new packet */
/* output opcodes */
#define CL_REG 0
#define LD_FID 1
#define LD_SEQ 2
#define LD_CTL 3
#define LD_SAP 4
#define LD_R1 5
#define LD_L3 6
#define LD_SUM 7
#define LD_HDR 8
#define IM_FID 9
#define IM_SEQ 10
#define IM_SAP 11
#define IM_R1 12
#define IM_CTL 13
#define LD_LEN 14
#define ST_FLG 15
/* match setp #s for IP4TCP4 */
#define S1_PCKT 0
#define S1_VLAN 1
#define S1_CFI 2
#define S1_8023 3
#define S1_LLC 4
#define S1_LLCc 5
#define S1_IPV4 6
#define S1_IPV4c 7
#define S1_IPV4F 8
#define S1_TCP44 9
#define S1_IPV6 10
#define S1_IPV6L 11
#define S1_IPV6c 12
#define S1_TCP64 13
#define S1_TCPSQ 14
#define S1_TCPFG 15
#define S1_TCPHL 16
#define S1_TCPHc 17
#define S1_CLNP 18
#define S1_CLNP2 19
#define S1_DROP 20
#define S2_HTTP 21
#define S1_ESP4 22
#define S1_AH4 23
#define S1_ESP6 24
#define S1_AH6 25
#define CAS_PROG_IP46TCP4_PREAMBLE \
{ "packet arrival?", 0xffff, 0x0000, OP_NP, 6, S1_VLAN, 0, S1_PCKT, \
CL_REG, 0x3ff, 1, 0x0, 0x0000}, \
{ "VLAN?", 0xffff, 0x8100, OP_EQ, 1, S1_CFI, 0, S1_8023, \
IM_CTL, 0x00a, 3, 0x0, 0xffff}, \
{ "CFI?", 0x1000, 0x1000, OP_EQ, 0, S1_DROP, 1, S1_8023, \
CL_REG, 0x000, 0, 0x0, 0x0000}, \
{ "8023?", 0xffff, 0x0600, OP_LT, 1, S1_LLC, 0, S1_IPV4, \
CL_REG, 0x000, 0, 0x0, 0x0000}, \
{ "LLC?", 0xffff, 0xaaaa, OP_EQ, 1, S1_LLCc, 0, S1_CLNP, \
CL_REG, 0x000, 0, 0x0, 0x0000}, \
{ "LLCc?", 0xff00, 0x0300, OP_EQ, 2, S1_IPV4, 0, S1_CLNP, \
CL_REG, 0x000, 0, 0x0, 0x0000}, \
{ "IPV4?", 0xffff, 0x0800, OP_EQ, 1, S1_IPV4c, 0, S1_IPV6, \
LD_SAP, 0x100, 3, 0x0, 0xffff}, \
{ "IPV4 cont?", 0xff00, 0x4500, OP_EQ, 3, S1_IPV4F, 0, S1_CLNP, \
LD_SUM, 0x00a, 1, 0x0, 0x0000}, \
{ "IPV4 frag?", 0x3fff, 0x0000, OP_EQ, 1, S1_TCP44, 0, S1_CLNP, \
LD_LEN, 0x03e, 1, 0x0, 0xffff}, \
{ "TCP44?", 0x00ff, 0x0006, OP_EQ, 7, S1_TCPSQ, 0, S1_CLNP, \
LD_FID, 0x182, 1, 0x0, 0xffff}, /* FID IP4&TCP src+dst */ \
{ "IPV6?", 0xffff, 0x86dd, OP_EQ, 1, S1_IPV6L, 0, S1_CLNP, \
LD_SUM, 0x015, 1, 0x0, 0x0000}, \
{ "IPV6 len", 0xf000, 0x6000, OP_EQ, 0, S1_IPV6c, 0, S1_CLNP, \
IM_R1, 0x128, 1, 0x0, 0xffff}, \
{ "IPV6 cont?", 0x0000, 0x0000, OP_EQ, 3, S1_TCP64, 0, S1_CLNP, \
LD_FID, 0x484, 1, 0x0, 0xffff}, /* FID IP6&TCP src+dst */ \
{ "TCP64?", 0xff00, 0x0600, OP_EQ, 18, S1_TCPSQ, 0, S1_CLNP, \
LD_LEN, 0x03f, 1, 0x0, 0xffff}
#ifdef USE_HP_IP46TCP4
static cas_hp_inst_t cas_prog_ip46tcp4tab[] = {
CAS_PROG_IP46TCP4_PREAMBLE,
{ "TCP seq", /* DADDR should point to dest port */
0x0000, 0x0000, OP_EQ, 0, S1_TCPFG, 4, S1_TCPFG, LD_SEQ,
0x081, 3, 0x0, 0xffff}, /* Load TCP seq # */
{ "TCP control flags", 0x0000, 0x0000, OP_EQ, 0, S1_TCPHL, 0,
S1_TCPHL, ST_FLG, 0x045, 3, 0x0, 0x002f}, /* Load TCP flags */
{ "TCP length", 0x0000, 0x0000, OP_EQ, 0, S1_TCPHc, 0,
S1_TCPHc, LD_R1, 0x205, 3, 0xB, 0xf000},
{ "TCP length cont", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0,
S1_PCKT, LD_HDR, 0x0ff, 3, 0x0, 0xffff},
{ "Cleanup", 0x0000, 0x0000, OP_EQ, 0, S1_CLNP2, 0, S1_CLNP2,
IM_CTL, 0x001, 3, 0x0, 0x0001},
{ "Cleanup 2", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT,
IM_CTL, 0x000, 0, 0x0, 0x0000},
{ "Drop packet", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT,
IM_CTL, 0x080, 3, 0x0, 0xffff},
{ NULL },
};
#ifdef HP_IP46TCP4_DEFAULT
#define CAS_HP_FIRMWARE cas_prog_ip46tcp4tab
#endif
#endif
/*
* Alternate table load which excludes HTTP server traffic from reassembly.
* It is substantially similar to the basic table, with one extra state
* and a few extra compares. */
#ifdef USE_HP_IP46TCP4NOHTTP
static cas_hp_inst_t cas_prog_ip46tcp4nohttptab[] = {
CAS_PROG_IP46TCP4_PREAMBLE,
{ "TCP seq", /* DADDR should point to dest port */
0xFFFF, 0x0080, OP_EQ, 0, S2_HTTP, 0, S1_TCPFG, LD_SEQ,
0x081, 3, 0x0, 0xffff} , /* Load TCP seq # */
{ "TCP control flags", 0xFFFF, 0x8080, OP_EQ, 0, S2_HTTP, 0,
S1_TCPHL, ST_FLG, 0x145, 2, 0x0, 0x002f, }, /* Load TCP flags */
{ "TCP length", 0x0000, 0x0000, OP_EQ, 0, S1_TCPHc, 0, S1_TCPHc,
LD_R1, 0x205, 3, 0xB, 0xf000},
{ "TCP length cont", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT,
LD_HDR, 0x0ff, 3, 0x0, 0xffff},
{ "Cleanup", 0x0000, 0x0000, OP_EQ, 0, S1_CLNP2, 0, S1_CLNP2,
IM_CTL, 0x001, 3, 0x0, 0x0001},
{ "Cleanup 2", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT,
CL_REG, 0x002, 3, 0x0, 0x0000},
{ "Drop packet", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT,
IM_CTL, 0x080, 3, 0x0, 0xffff},
{ "No HTTP", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT,
IM_CTL, 0x044, 3, 0x0, 0xffff},
{ NULL },
};
#ifdef HP_IP46TCP4NOHTTP_DEFAULT
#define CAS_HP_FIRMWARE cas_prog_ip46tcp4nohttptab
#endif
#endif
/* match step #s for IP4FRAG */
#define S3_IPV6c 11
#define S3_TCP64 12
#define S3_TCPSQ 13
#define S3_TCPFG 14
#define S3_TCPHL 15
#define S3_TCPHc 16
#define S3_FRAG 17
#define S3_FOFF 18
#define S3_CLNP 19
#ifdef USE_HP_IP4FRAG
static cas_hp_inst_t cas_prog_ip4fragtab[] = {
{ "packet arrival?", 0xffff, 0x0000, OP_NP, 6, S1_VLAN, 0, S1_PCKT,
CL_REG, 0x3ff, 1, 0x0, 0x0000},
{ "VLAN?", 0xffff, 0x8100, OP_EQ, 1, S1_CFI, 0, S1_8023,
IM_CTL, 0x00a, 3, 0x0, 0xffff},
{ "CFI?", 0x1000, 0x1000, OP_EQ, 0, S3_CLNP, 1, S1_8023,
CL_REG, 0x000, 0, 0x0, 0x0000},
{ "8023?", 0xffff, 0x0600, OP_LT, 1, S1_LLC, 0, S1_IPV4,
CL_REG, 0x000, 0, 0x0, 0x0000},
{ "LLC?", 0xffff, 0xaaaa, OP_EQ, 1, S1_LLCc, 0, S3_CLNP,
CL_REG, 0x000, 0, 0x0, 0x0000},
{ "LLCc?",0xff00, 0x0300, OP_EQ, 2, S1_IPV4, 0, S3_CLNP,
CL_REG, 0x000, 0, 0x0, 0x0000},
{ "IPV4?", 0xffff, 0x0800, OP_EQ, 1, S1_IPV4c, 0, S1_IPV6,
LD_SAP, 0x100, 3, 0x0, 0xffff},
{ "IPV4 cont?", 0xff00, 0x4500, OP_EQ, 3, S1_IPV4F, 0, S3_CLNP,
LD_SUM, 0x00a, 1, 0x0, 0x0000},
{ "IPV4 frag?", 0x3fff, 0x0000, OP_EQ, 1, S1_TCP44, 0, S3_FRAG,
LD_LEN, 0x03e, 3, 0x0, 0xffff},
{ "TCP44?", 0x00ff, 0x0006, OP_EQ, 7, S3_TCPSQ, 0, S3_CLNP,
LD_FID, 0x182, 3, 0x0, 0xffff}, /* FID IP4&TCP src+dst */
{ "IPV6?", 0xffff, 0x86dd, OP_EQ, 1, S3_IPV6c, 0, S3_CLNP,
LD_SUM, 0x015, 1, 0x0, 0x0000},
{ "IPV6 cont?", 0xf000, 0x6000, OP_EQ, 3, S3_TCP64, 0, S3_CLNP,
LD_FID, 0x484, 1, 0x0, 0xffff}, /* FID IP6&TCP src+dst */
{ "TCP64?", 0xff00, 0x0600, OP_EQ, 18, S3_TCPSQ, 0, S3_CLNP,
LD_LEN, 0x03f, 1, 0x0, 0xffff},
{ "TCP seq", /* DADDR should point to dest port */
0x0000, 0x0000, OP_EQ, 0, S3_TCPFG, 4, S3_TCPFG, LD_SEQ,
0x081, 3, 0x0, 0xffff}, /* Load TCP seq # */
{ "TCP control flags", 0x0000, 0x0000, OP_EQ, 0, S3_TCPHL, 0,
S3_TCPHL, ST_FLG, 0x045, 3, 0x0, 0x002f}, /* Load TCP flags */
{ "TCP length", 0x0000, 0x0000, OP_EQ, 0, S3_TCPHc, 0, S3_TCPHc,
LD_R1, 0x205, 3, 0xB, 0xf000},
{ "TCP length cont", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT,
LD_HDR, 0x0ff, 3, 0x0, 0xffff},
{ "IP4 Fragment", 0x0000, 0x0000, OP_EQ, 0, S3_FOFF, 0, S3_FOFF,
LD_FID, 0x103, 3, 0x0, 0xffff}, /* FID IP4 src+dst */
{ "IP4 frag offset", 0x0000, 0x0000, OP_EQ, 0, S3_FOFF, 0, S3_FOFF,
LD_SEQ, 0x040, 1, 0xD, 0xfff8},
{ "Cleanup", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT,
IM_CTL, 0x001, 3, 0x0, 0x0001},
{ NULL },
};
#ifdef HP_IP4FRAG_DEFAULT
#define CAS_HP_FIRMWARE cas_prog_ip4fragtab
#endif
#endif
/*
* Alternate table which does batching without reassembly
*/
#ifdef USE_HP_IP46TCP4BATCH
static cas_hp_inst_t cas_prog_ip46tcp4batchtab[] = {
CAS_PROG_IP46TCP4_PREAMBLE,
{ "TCP seq", /* DADDR should point to dest port */
0x0000, 0x0000, OP_EQ, 0, S1_TCPFG, 0, S1_TCPFG, LD_SEQ,
0x081, 3, 0x0, 0xffff}, /* Load TCP seq # */
{ "TCP control flags", 0x0000, 0x0000, OP_EQ, 0, S1_TCPHL, 0,
S1_TCPHL, ST_FLG, 0x000, 3, 0x0, 0x0000}, /* Load TCP flags */
{ "TCP length", 0x0000, 0x0000, OP_EQ, 0, S1_TCPHc, 0,
S1_TCPHc, LD_R1, 0x205, 3, 0xB, 0xf000},
{ "TCP length cont", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0,
S1_PCKT, IM_CTL, 0x040, 3, 0x0, 0xffff}, /* set batch bit */
{ "Cleanup", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT,
IM_CTL, 0x001, 3, 0x0, 0x0001},
{ "Drop packet", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0,
S1_PCKT, IM_CTL, 0x080, 3, 0x0, 0xffff},
{ NULL },
};
#ifdef HP_IP46TCP4BATCH_DEFAULT
#define CAS_HP_FIRMWARE cas_prog_ip46tcp4batchtab
#endif
#endif
/* Workaround for Cassini rev2 descriptor corruption problem.
* Does batching without reassembly, and sets the SAP to a known
* data pattern for all packets.
*/
#ifdef USE_HP_WORKAROUND
static cas_hp_inst_t cas_prog_workaroundtab[] = {
{ "packet arrival?", 0xffff, 0x0000, OP_NP, 6, S1_VLAN, 0,
S1_PCKT, CL_REG, 0x3ff, 1, 0x0, 0x0000} ,
{ "VLAN?", 0xffff, 0x8100, OP_EQ, 1, S1_CFI, 0, S1_8023,
IM_CTL, 0x04a, 3, 0x0, 0xffff},
{ "CFI?", 0x1000, 0x1000, OP_EQ, 0, S1_CLNP, 1, S1_8023,
CL_REG, 0x000, 0, 0x0, 0x0000},
{ "8023?", 0xffff, 0x0600, OP_LT, 1, S1_LLC, 0, S1_IPV4,
CL_REG, 0x000, 0, 0x0, 0x0000},
{ "LLC?", 0xffff, 0xaaaa, OP_EQ, 1, S1_LLCc, 0, S1_CLNP,
CL_REG, 0x000, 0, 0x0, 0x0000},
{ "LLCc?", 0xff00, 0x0300, OP_EQ, 2, S1_IPV4, 0, S1_CLNP,
CL_REG, 0x000, 0, 0x0, 0x0000},
{ "IPV4?", 0xffff, 0x0800, OP_EQ, 1, S1_IPV4c, 0, S1_IPV6,
IM_SAP, 0x6AE, 3, 0x0, 0xffff},
{ "IPV4 cont?", 0xff00, 0x4500, OP_EQ, 3, S1_IPV4F, 0, S1_CLNP,
LD_SUM, 0x00a, 1, 0x0, 0x0000},
{ "IPV4 frag?", 0x3fff, 0x0000, OP_EQ, 1, S1_TCP44, 0, S1_CLNP,
LD_LEN, 0x03e, 1, 0x0, 0xffff},
{ "TCP44?", 0x00ff, 0x0006, OP_EQ, 7, S1_TCPSQ, 0, S1_CLNP,
LD_FID, 0x182, 3, 0x0, 0xffff}, /* FID IP4&TCP src+dst */
{ "IPV6?", 0xffff, 0x86dd, OP_EQ, 1, S1_IPV6L, 0, S1_CLNP,
LD_SUM, 0x015, 1, 0x0, 0x0000},
{ "IPV6 len", 0xf000, 0x6000, OP_EQ, 0, S1_IPV6c, 0, S1_CLNP,
IM_R1, 0x128, 1, 0x0, 0xffff},
{ "IPV6 cont?", 0x0000, 0x0000, OP_EQ, 3, S1_TCP64, 0, S1_CLNP,
LD_FID, 0x484, 1, 0x0, 0xffff}, /* FID IP6&TCP src+dst */
{ "TCP64?", 0xff00, 0x0600, OP_EQ, 18, S1_TCPSQ, 0, S1_CLNP,
LD_LEN, 0x03f, 1, 0x0, 0xffff},
{ "TCP seq", /* DADDR should point to dest port */
0x0000, 0x0000, OP_EQ, 0, S1_TCPFG, 4, S1_TCPFG, LD_SEQ,
0x081, 3, 0x0, 0xffff}, /* Load TCP seq # */
{ "TCP control flags", 0x0000, 0x0000, OP_EQ, 0, S1_TCPHL, 0,
S1_TCPHL, ST_FLG, 0x045, 3, 0x0, 0x002f}, /* Load TCP flags */
{ "TCP length", 0x0000, 0x0000, OP_EQ, 0, S1_TCPHc, 0, S1_TCPHc,
LD_R1, 0x205, 3, 0xB, 0xf000},
{ "TCP length cont", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0,
S1_PCKT, LD_HDR, 0x0ff, 3, 0x0, 0xffff},
{ "Cleanup", 0x0000, 0x0000, OP_EQ, 0, S1_CLNP2, 0, S1_CLNP2,
IM_SAP, 0x6AE, 3, 0x0, 0xffff} ,
{ "Cleanup 2", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT,
IM_CTL, 0x001, 3, 0x0, 0x0001},
{ NULL },
};
#ifdef HP_WORKAROUND_DEFAULT
#define CAS_HP_FIRMWARE cas_prog_workaroundtab
#endif
#endif
#ifdef USE_HP_ENCRYPT
static cas_hp_inst_t cas_prog_encryptiontab[] = {
{ "packet arrival?", 0xffff, 0x0000, OP_NP, 6, S1_VLAN, 0,
S1_PCKT, CL_REG, 0x3ff, 1, 0x0, 0x0000},
{ "VLAN?", 0xffff, 0x8100, OP_EQ, 1, S1_CFI, 0, S1_8023,
IM_CTL, 0x00a, 3, 0x0, 0xffff},
#if 0
//"CFI?", /* 02 FIND CFI and If FIND go to S1_DROP */
//0x1000, 0x1000, OP_EQ, 0, S1_DROP, 1, S1_8023, CL_REG, 0x000, 0, 0x0, 0x00
00,
#endif
{ "CFI?", /* FIND CFI and If FIND go to CleanUP1 (ignore and send to host) */
0x1000, 0x1000, OP_EQ, 0, S1_CLNP, 1, S1_8023,
CL_REG, 0x000, 0, 0x0, 0x0000},
{ "8023?", 0xffff, 0x0600, OP_LT, 1, S1_LLC, 0, S1_IPV4,
CL_REG, 0x000, 0, 0x0, 0x0000},
{ "LLC?", 0xffff, 0xaaaa, OP_EQ, 1, S1_LLCc, 0, S1_CLNP,
CL_REG, 0x000, 0, 0x0, 0x0000},
{ "LLCc?", 0xff00, 0x0300, OP_EQ, 2, S1_IPV4, 0, S1_CLNP,
CL_REG, 0x000, 0, 0x0, 0x0000},
{ "IPV4?", 0xffff, 0x0800, OP_EQ, 1, S1_IPV4c, 0, S1_IPV6,
LD_SAP, 0x100, 3, 0x0, 0xffff},
{ "IPV4 cont?", 0xff00, 0x4500, OP_EQ, 3, S1_IPV4F, 0, S1_CLNP,
LD_SUM, 0x00a, 1, 0x0, 0x0000},
{ "IPV4 frag?", 0x3fff, 0x0000, OP_EQ, 1, S1_TCP44, 0, S1_CLNP,
LD_LEN, 0x03e, 1, 0x0, 0xffff},
{ "TCP44?", 0x00ff, 0x0006, OP_EQ, 7, S1_TCPSQ, 0, S1_ESP4,
LD_FID, 0x182, 1, 0x0, 0xffff}, /* FID IP4&TCP src+dst */
{ "IPV6?", 0xffff, 0x86dd, OP_EQ, 1, S1_IPV6L, 0, S1_CLNP,
LD_SUM, 0x015, 1, 0x0, 0x0000},
{ "IPV6 len", 0xf000, 0x6000, OP_EQ, 0, S1_IPV6c, 0, S1_CLNP,
IM_R1, 0x128, 1, 0x0, 0xffff},
{ "IPV6 cont?", 0x0000, 0x0000, OP_EQ, 3, S1_TCP64, 0, S1_CLNP,
LD_FID, 0x484, 1, 0x0, 0xffff}, /* FID IP6&TCP src+dst */
{ "TCP64?",
#if 0
//@@@0xff00, 0x0600, OP_EQ, 18, S1_TCPSQ, 0, S1_ESP6, LD_LEN, 0x03f, 1, 0x0, 0xffff,
#endif
0xff00, 0x0600, OP_EQ, 12, S1_TCPSQ, 0, S1_ESP6, LD_LEN,
0x03f, 1, 0x0, 0xffff},
{ "TCP seq", /* 14:DADDR should point to dest port */
0xFFFF, 0x0080, OP_EQ, 0, S2_HTTP, 0, S1_TCPFG, LD_SEQ,
0x081, 3, 0x0, 0xffff}, /* Load TCP seq # */
{ "TCP control flags", 0xFFFF, 0x8080, OP_EQ, 0, S2_HTTP, 0,
S1_TCPHL, ST_FLG, 0x145, 2, 0x0, 0x002f}, /* Load TCP flags */
{ "TCP length", 0x0000, 0x0000, OP_EQ, 0, S1_TCPHc, 0, S1_TCPHc,
LD_R1, 0x205, 3, 0xB, 0xf000} ,
{ "TCP length cont", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0,
S1_PCKT, LD_HDR, 0x0ff, 3, 0x0, 0xffff},
{ "Cleanup", 0x0000, 0x0000, OP_EQ, 0, S1_CLNP2, 0, S1_CLNP2,
IM_CTL, 0x001, 3, 0x0, 0x0001},
{ "Cleanup 2", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT,
CL_REG, 0x002, 3, 0x0, 0x0000},
{ "Drop packet", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT,
IM_CTL, 0x080, 3, 0x0, 0xffff},
{ "No HTTP", 0x0000, 0x0000, OP_EQ, 0, S1_PCKT, 0, S1_PCKT,
IM_CTL, 0x044, 3, 0x0, 0xffff},
{ "IPV4 ESP encrypted?", /* S1_ESP4 */
0x00ff, 0x0032, OP_EQ, 0, S1_CLNP2, 0, S1_AH4, IM_CTL,
0x021, 1, 0x0, 0xffff},
{ "IPV4 AH encrypted?", /* S1_AH4 */
0x00ff, 0x0033, OP_EQ, 0, S1_CLNP2, 0, S1_CLNP, IM_CTL,
0x021, 1, 0x0, 0xffff},
{ "IPV6 ESP encrypted?", /* S1_ESP6 */
#if 0
//@@@0x00ff, 0x0032, OP_EQ, 0, S1_CLNP2, 0, S1_AH6, IM_CTL, 0x021, 1, 0x0, 0xffff,
#endif
0xff00, 0x3200, OP_EQ, 0, S1_CLNP2, 0, S1_AH6, IM_CTL,
0x021, 1, 0x0, 0xffff},
{ "IPV6 AH encrypted?", /* S1_AH6 */
#if 0
//@@@0x00ff, 0x0033, OP_EQ, 0, S1_CLNP2, 0, S1_CLNP, IM_CTL, 0x021, 1, 0x0, 0xffff,
#endif
0xff00, 0x3300, OP_EQ, 0, S1_CLNP2, 0, S1_CLNP, IM_CTL,
0x021, 1, 0x0, 0xffff},
{ NULL },
};
#ifdef HP_ENCRYPT_DEFAULT
#define CAS_HP_FIRMWARE cas_prog_encryptiontab
#endif
#endif
static cas_hp_inst_t cas_prog_null[] = { {NULL} };
#ifdef HP_NULL_DEFAULT
#define CAS_HP_FIRMWARE cas_prog_null
#endif
/* phy types */
#define CAS_PHY_UNKNOWN 0x00
#define CAS_PHY_SERDES 0x01
#define CAS_PHY_MII_MDIO0 0x02
#define CAS_PHY_MII_MDIO1 0x04
#define CAS_PHY_MII(x) ((x) & (CAS_PHY_MII_MDIO0 | CAS_PHY_MII_MDIO1))
/* _RING_INDEX is the index for the ring sizes to be used. _RING_SIZE
* is the actual size. the default index for the various rings is
* 8. NOTE: there a bunch of alignment constraints for the rings. to
* deal with that, i just allocate rings to create the desired
* alignment. here are the constraints:
* RX DESC and COMP rings must be 8KB aligned
* TX DESC must be 2KB aligned.
* if you change the numbers, be cognizant of how the alignment will change
* in INIT_BLOCK as well.
*/
#define DESC_RING_I_TO_S(x) (32*(1 << (x)))
#define COMP_RING_I_TO_S(x) (128*(1 << (x)))
#define TX_DESC_RING_INDEX 4 /* 512 = 8k */
#define RX_DESC_RING_INDEX 4 /* 512 = 8k */
#define RX_COMP_RING_INDEX 4 /* 2048 = 64k: should be 4x rx ring size */
#if (TX_DESC_RING_INDEX > 8) || (TX_DESC_RING_INDEX < 0)
#error TX_DESC_RING_INDEX must be between 0 and 8
#endif
#if (RX_DESC_RING_INDEX > 8) || (RX_DESC_RING_INDEX < 0)
#error RX_DESC_RING_INDEX must be between 0 and 8
#endif
#if (RX_COMP_RING_INDEX > 8) || (RX_COMP_RING_INDEX < 0)
#error RX_COMP_RING_INDEX must be between 0 and 8
#endif
#define N_TX_RINGS MAX_TX_RINGS /* for QoS */
#define N_TX_RINGS_MASK MAX_TX_RINGS_MASK
#define N_RX_DESC_RINGS MAX_RX_DESC_RINGS /* 1 for ipsec */
#define N_RX_COMP_RINGS 0x1 /* for mult. PCI interrupts */
/* number of flows that can go through re-assembly */
#define N_RX_FLOWS 64
#define TX_DESC_RING_SIZE DESC_RING_I_TO_S(TX_DESC_RING_INDEX)
#define RX_DESC_RING_SIZE DESC_RING_I_TO_S(RX_DESC_RING_INDEX)
#define RX_COMP_RING_SIZE COMP_RING_I_TO_S(RX_COMP_RING_INDEX)
#define TX_DESC_RINGN_INDEX(x) TX_DESC_RING_INDEX
#define RX_DESC_RINGN_INDEX(x) RX_DESC_RING_INDEX
#define RX_COMP_RINGN_INDEX(x) RX_COMP_RING_INDEX
#define TX_DESC_RINGN_SIZE(x) TX_DESC_RING_SIZE
#define RX_DESC_RINGN_SIZE(x) RX_DESC_RING_SIZE
#define RX_COMP_RINGN_SIZE(x) RX_COMP_RING_SIZE
/* convert values */
#define CAS_BASE(x, y) (((y) << (x ## _SHIFT)) & (x ## _MASK))
#define CAS_VAL(x, y) (((y) & (x ## _MASK)) >> (x ## _SHIFT))
#define CAS_TX_RINGN_BASE(y) ((TX_DESC_RINGN_INDEX(y) << \
TX_CFG_DESC_RINGN_SHIFT(y)) & \
TX_CFG_DESC_RINGN_MASK(y))
/* min is 2k, but we can't do jumbo frames unless it's at least 8k */
#define CAS_MIN_PAGE_SHIFT 11 /* 2048 */
#define CAS_JUMBO_PAGE_SHIFT 13 /* 8192 */
#define CAS_MAX_PAGE_SHIFT 14 /* 16384 */
#define TX_DESC_BUFLEN_MASK 0x0000000000003FFFULL /* buffer length in
bytes. 0 - 9256 */
#define TX_DESC_BUFLEN_SHIFT 0
#define TX_DESC_CSUM_START_MASK 0x00000000001F8000ULL /* checksum start. #
of bytes to be
skipped before
csum calc begins.
value must be
even */
#define TX_DESC_CSUM_START_SHIFT 15
#define TX_DESC_CSUM_STUFF_MASK 0x000000001FE00000ULL /* checksum stuff.
byte offset w/in
the pkt for the
1st csum byte.
must be > 8 */
#define TX_DESC_CSUM_STUFF_SHIFT 21
#define TX_DESC_CSUM_EN 0x0000000020000000ULL /* enable checksum */
#define TX_DESC_EOF 0x0000000040000000ULL /* end of frame */
#define TX_DESC_SOF 0x0000000080000000ULL /* start of frame */
#define TX_DESC_INTME 0x0000000100000000ULL /* interrupt me */
#define TX_DESC_NO_CRC 0x0000000200000000ULL /* debugging only.
CRC will not be
inserted into
outgoing frame. */
struct cas_tx_desc {
__le64 control;
__le64 buffer;
};
/* descriptor ring for free buffers contains page-sized buffers. the index
* value is not used by the hw in any way. it's just stored and returned in
* the completion ring.
*/
struct cas_rx_desc {
__le64 index;
__le64 buffer;
};
/* received packets are put on the completion ring. */
/* word 1 */
#define RX_COMP1_DATA_SIZE_MASK 0x0000000007FFE000ULL
#define RX_COMP1_DATA_SIZE_SHIFT 13
#define RX_COMP1_DATA_OFF_MASK 0x000001FFF8000000ULL
#define RX_COMP1_DATA_OFF_SHIFT 27
#define RX_COMP1_DATA_INDEX_MASK 0x007FFE0000000000ULL
#define RX_COMP1_DATA_INDEX_SHIFT 41
#define RX_COMP1_SKIP_MASK 0x0180000000000000ULL
#define RX_COMP1_SKIP_SHIFT 55
#define RX_COMP1_RELEASE_NEXT 0x0200000000000000ULL
#define RX_COMP1_SPLIT_PKT 0x0400000000000000ULL
#define RX_COMP1_RELEASE_FLOW 0x0800000000000000ULL
#define RX_COMP1_RELEASE_DATA 0x1000000000000000ULL
#define RX_COMP1_RELEASE_HDR 0x2000000000000000ULL
#define RX_COMP1_TYPE_MASK 0xC000000000000000ULL
#define RX_COMP1_TYPE_SHIFT 62
/* word 2 */
#define RX_COMP2_NEXT_INDEX_MASK 0x00000007FFE00000ULL
#define RX_COMP2_NEXT_INDEX_SHIFT 21
#define RX_COMP2_HDR_SIZE_MASK 0x00000FF800000000ULL
#define RX_COMP2_HDR_SIZE_SHIFT 35
#define RX_COMP2_HDR_OFF_MASK 0x0003F00000000000ULL
#define RX_COMP2_HDR_OFF_SHIFT 44
#define RX_COMP2_HDR_INDEX_MASK 0xFFFC000000000000ULL
#define RX_COMP2_HDR_INDEX_SHIFT 50
/* word 3 */
#define RX_COMP3_SMALL_PKT 0x0000000000000001ULL
#define RX_COMP3_JUMBO_PKT 0x0000000000000002ULL
#define RX_COMP3_JUMBO_HDR_SPLIT_EN 0x0000000000000004ULL
#define RX_COMP3_CSUM_START_MASK 0x000000000007F000ULL
#define RX_COMP3_CSUM_START_SHIFT 12
#define RX_COMP3_FLOWID_MASK 0x0000000001F80000ULL
#define RX_COMP3_FLOWID_SHIFT 19
#define RX_COMP3_OPCODE_MASK 0x000000000E000000ULL
#define RX_COMP3_OPCODE_SHIFT 25
#define RX_COMP3_FORCE_FLAG 0x0000000010000000ULL
#define RX_COMP3_NO_ASSIST 0x0000000020000000ULL
#define RX_COMP3_LOAD_BAL_MASK 0x000001F800000000ULL
#define RX_COMP3_LOAD_BAL_SHIFT 35
#define RX_PLUS_COMP3_ENC_PKT 0x0000020000000000ULL /* cas+ */
#define RX_COMP3_L3_HEAD_OFF_MASK 0x0000FE0000000000ULL /* cas */
#define RX_COMP3_L3_HEAD_OFF_SHIFT 41
#define RX_PLUS_COMP_L3_HEAD_OFF_MASK 0x0000FC0000000000ULL /* cas+ */
#define RX_PLUS_COMP_L3_HEAD_OFF_SHIFT 42
#define RX_COMP3_SAP_MASK 0xFFFF000000000000ULL
#define RX_COMP3_SAP_SHIFT 48
/* word 4 */
#define RX_COMP4_TCP_CSUM_MASK 0x000000000000FFFFULL
#define RX_COMP4_TCP_CSUM_SHIFT 0
#define RX_COMP4_PKT_LEN_MASK 0x000000003FFF0000ULL
#define RX_COMP4_PKT_LEN_SHIFT 16
#define RX_COMP4_PERFECT_MATCH_MASK 0x00000003C0000000ULL
#define RX_COMP4_PERFECT_MATCH_SHIFT 30
#define RX_COMP4_ZERO 0x0000080000000000ULL
#define RX_COMP4_HASH_VAL_MASK 0x0FFFF00000000000ULL
#define RX_COMP4_HASH_VAL_SHIFT 44
#define RX_COMP4_HASH_PASS 0x1000000000000000ULL
#define RX_COMP4_BAD 0x4000000000000000ULL
#define RX_COMP4_LEN_MISMATCH 0x8000000000000000ULL
/* we encode the following: ring/index/release. only 14 bits
* are usable.
* NOTE: the encoding is dependent upon RX_DESC_RING_SIZE and
* MAX_RX_DESC_RINGS. */
#define RX_INDEX_NUM_MASK 0x0000000000000FFFULL
#define RX_INDEX_NUM_SHIFT 0
#define RX_INDEX_RING_MASK 0x0000000000001000ULL
#define RX_INDEX_RING_SHIFT 12
#define RX_INDEX_RELEASE 0x0000000000002000ULL
struct cas_rx_comp {
__le64 word1;
__le64 word2;
__le64 word3;
__le64 word4;
};
enum link_state {
link_down = 0, /* No link, will retry */
link_aneg, /* Autoneg in progress */
link_force_try, /* Try Forced link speed */
link_force_ret, /* Forced mode worked, retrying autoneg */
link_force_ok, /* Stay in forced mode */
link_up /* Link is up */
};
typedef struct cas_page {
struct list_head list;
struct page *buffer;
dma_addr_t dma_addr;
int used;
} cas_page_t;
/* some alignment constraints:
* TX DESC, RX DESC, and RX COMP must each be 8K aligned.
* TX COMPWB must be 8-byte aligned.
* to accomplish this, here's what we do:
*
* INIT_BLOCK_RX_COMP = 64k (already aligned)
* INIT_BLOCK_RX_DESC = 8k
* INIT_BLOCK_TX = 8k
* INIT_BLOCK_RX1_DESC = 8k
* TX COMPWB
*/
#define INIT_BLOCK_TX (TX_DESC_RING_SIZE)
#define INIT_BLOCK_RX_DESC (RX_DESC_RING_SIZE)
#define INIT_BLOCK_RX_COMP (RX_COMP_RING_SIZE)
struct cas_init_block {
struct cas_rx_comp rxcs[N_RX_COMP_RINGS][INIT_BLOCK_RX_COMP];
struct cas_rx_desc rxds[N_RX_DESC_RINGS][INIT_BLOCK_RX_DESC];
struct cas_tx_desc txds[N_TX_RINGS][INIT_BLOCK_TX];
__le64 tx_compwb;
};
/* tiny buffers to deal with target abort issue. we allocate a bit
* over so that we don't have target abort issues with these buffers
* as well.
*/
#define TX_TINY_BUF_LEN 0x100
#define TX_TINY_BUF_BLOCK ((INIT_BLOCK_TX + 1)*TX_TINY_BUF_LEN)
struct cas_tiny_count {
int nbufs;
int used;
};
struct cas {
spinlock_t lock; /* for most bits */
spinlock_t tx_lock[N_TX_RINGS]; /* tx bits */
spinlock_t stat_lock[N_TX_RINGS + 1]; /* for stat gathering */
spinlock_t rx_inuse_lock; /* rx inuse list */
spinlock_t rx_spare_lock; /* rx spare list */
void __iomem *regs;
int tx_new[N_TX_RINGS], tx_old[N_TX_RINGS];
int rx_old[N_RX_DESC_RINGS];
int rx_cur[N_RX_COMP_RINGS], rx_new[N_RX_COMP_RINGS];
int rx_last[N_RX_DESC_RINGS];
struct napi_struct napi;
/* Set when chip is actually in operational state
* (ie. not power managed) */
int hw_running;
int opened;
struct mutex pm_mutex; /* open/close/suspend/resume */
struct cas_init_block *init_block;
struct cas_tx_desc *init_txds[MAX_TX_RINGS];
struct cas_rx_desc *init_rxds[MAX_RX_DESC_RINGS];
struct cas_rx_comp *init_rxcs[MAX_RX_COMP_RINGS];
/* we use sk_buffs for tx and pages for rx. the rx skbuffs
* are there for flow re-assembly. */
struct sk_buff *tx_skbs[N_TX_RINGS][TX_DESC_RING_SIZE];
struct sk_buff_head rx_flows[N_RX_FLOWS];
cas_page_t *rx_pages[N_RX_DESC_RINGS][RX_DESC_RING_SIZE];
struct list_head rx_spare_list, rx_inuse_list;
int rx_spares_needed;
/* for small packets when copying would be quicker than
mapping */
struct cas_tiny_count tx_tiny_use[N_TX_RINGS][TX_DESC_RING_SIZE];
u8 *tx_tiny_bufs[N_TX_RINGS];
u32 msg_enable;
/* N_TX_RINGS must be >= N_RX_DESC_RINGS */
struct net_device_stats net_stats[N_TX_RINGS + 1];
u32 pci_cfg[64 >> 2];
u8 pci_revision;
int phy_type;
int phy_addr;
u32 phy_id;
#define CAS_FLAG_1000MB_CAP 0x00000001
#define CAS_FLAG_REG_PLUS 0x00000002
#define CAS_FLAG_TARGET_ABORT 0x00000004
#define CAS_FLAG_SATURN 0x00000008
#define CAS_FLAG_RXD_POST_MASK 0x000000F0
#define CAS_FLAG_RXD_POST_SHIFT 4
#define CAS_FLAG_RXD_POST(x) ((1 << (CAS_FLAG_RXD_POST_SHIFT + (x))) & \
CAS_FLAG_RXD_POST_MASK)
#define CAS_FLAG_ENTROPY_DEV 0x00000100
#define CAS_FLAG_NO_HW_CSUM 0x00000200
u32 cas_flags;
int packet_min; /* minimum packet size */
int tx_fifo_size;
int rx_fifo_size;
int rx_pause_off;
int rx_pause_on;
int crc_size; /* 4 if half-duplex */
int pci_irq_INTC;
int min_frame_size; /* for tx fifo workaround */
/* page size allocation */
int page_size;
int page_order;
int mtu_stride;
u32 mac_rx_cfg;
/* Autoneg & PHY control */
int link_cntl;
int link_fcntl;
enum link_state lstate;
struct timer_list link_timer;
int timer_ticks;
struct work_struct reset_task;
#if 0
atomic_t reset_task_pending;
#else
atomic_t reset_task_pending;
atomic_t reset_task_pending_mtu;
atomic_t reset_task_pending_spare;
atomic_t reset_task_pending_all;
#endif
/* Link-down problem workaround */
#define LINK_TRANSITION_UNKNOWN 0
#define LINK_TRANSITION_ON_FAILURE 1
#define LINK_TRANSITION_STILL_FAILED 2
#define LINK_TRANSITION_LINK_UP 3
#define LINK_TRANSITION_LINK_CONFIG 4
#define LINK_TRANSITION_LINK_DOWN 5
#define LINK_TRANSITION_REQUESTED_RESET 6
int link_transition;
int link_transition_jiffies_valid;
unsigned long link_transition_jiffies;
/* Tuning */
u8 orig_cacheline_size; /* value when loaded */
#define CAS_PREF_CACHELINE_SIZE 0x20 /* Minimum desired */
/* Diagnostic counters and state. */
int casreg_len; /* reg-space size for dumping */
u64 pause_entered;
u16 pause_last_time_recvd;
dma_addr_t block_dvma, tx_tiny_dvma[N_TX_RINGS];
struct pci_dev *pdev;
struct net_device *dev;
#if defined(CONFIG_OF)
struct device_node *of_node;
#endif
/* Firmware Info */
u16 fw_load_addr;
u32 fw_size;
u8 *fw_data;
};
#define TX_DESC_NEXT(r, x) (((x) + 1) & (TX_DESC_RINGN_SIZE(r) - 1))
#define RX_DESC_ENTRY(r, x) ((x) & (RX_DESC_RINGN_SIZE(r) - 1))
#define RX_COMP_ENTRY(r, x) ((x) & (RX_COMP_RINGN_SIZE(r) - 1))
#define TX_BUFF_COUNT(r, x, y) ((x) <= (y) ? ((y) - (x)) : \
(TX_DESC_RINGN_SIZE(r) - (x) + (y)))
#define TX_BUFFS_AVAIL(cp, i) ((cp)->tx_old[(i)] <= (cp)->tx_new[(i)] ? \
(cp)->tx_old[(i)] + (TX_DESC_RINGN_SIZE(i) - 1) - (cp)->tx_new[(i)] : \
(cp)->tx_old[(i)] - (cp)->tx_new[(i)] - 1)
#define CAS_ALIGN(addr, align) \
(((unsigned long) (addr) + ((align) - 1UL)) & ~((align) - 1))
#define RX_FIFO_SIZE 16384
#define EXPANSION_ROM_SIZE 65536
#define CAS_MC_EXACT_MATCH_SIZE 15
#define CAS_MC_HASH_SIZE 256
#define CAS_MC_HASH_MAX (CAS_MC_EXACT_MATCH_SIZE + \
CAS_MC_HASH_SIZE)
#define TX_TARGET_ABORT_LEN 0x20
#define RX_SWIVEL_OFF_VAL 0x2
#define RX_AE_FREEN_VAL(x) (RX_DESC_RINGN_SIZE(x) >> 1)
#define RX_AE_COMP_VAL (RX_COMP_RING_SIZE >> 1)
#define RX_BLANK_INTR_PKT_VAL 0x05
#define RX_BLANK_INTR_TIME_VAL 0x0F
#define HP_TCP_THRESH_VAL 1530 /* reduce to enable reassembly */
#define RX_SPARE_COUNT (RX_DESC_RING_SIZE >> 1)
#define RX_SPARE_RECOVER_VAL (RX_SPARE_COUNT >> 2)
#endif /* _CASSINI_H */
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