* Copyright (c) 1997, 1998, 1999

/* $NetBSD: if_tireg.h,v 1.32 2023/02/21 22:13:02 andvar Exp $ */

/*
* Copyright (c) 1997, 1998, 1999
* Bill Paul <[email protected]>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bill Paul.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*
* FreeBSD Id: if_tireg.h,v 1.9 1999/07/27 03:54:48 wpaul Exp
*/

/*
* Tigon register offsets. These are memory mapped registers
* which can be accessed with the CSR_READ_4()/CSR_WRITE_4() macros.
* Each register must be accessed using 32 bit operations.
*
* All registers are accessed through a 16K shared memory block.
* The first group of registers are actually copies of the PCI
* configuration space registers.
*/

/*
* Tigon configuration and control registers.
*/
#define TI_MISC_HOST_CTL 0x040
#define TI_MISC_LOCAL_CTL 0x044
#define TI_SEM_AB 0x048 /* Tigon 2 only */
#define TI_MISC_CONF 0x050 /* Tigon 2 only */
#define TI_TIMER_BITS 0x054
#define TI_TIMERREF 0x058
#define TI_PCI_STATE 0x05C
#define TI_MAIN_EVENT_A 0x060
#define TI_MAILBOX_EVENT_A 0x064
#define TI_WINBASE 0x068
#define TI_WINDATA 0x06C
#define TI_MAIN_EVENT_B 0x070 /* Tigon 2 only */
#define TI_MAILBOX_EVENT_B 0x074 /* Tigon 2 only */
#define TI_TIMERREF_B 0x078 /* Tigon 2 only */
#define TI_SERIAL 0x07C

/*
* Misc host control bits.
*/
#define TI_MHC_INTSTATE 0x00000001
#define TI_MHC_CLEARINT 0x00000002
#define TI_MHC_RESET 0x00000008
#define TI_MHC_BYTE_SWAP_ENB 0x00000010
#define TI_MHC_WORD_SWAP_ENB 0x00000020
#define TI_MHC_MASK_INTS 0x00000040
#define TI_MHC_CHIP_REV_MASK 0xF0000000

#define TI_MHC_BIGENDIAN_INIT \
(TI_MHC_BYTE_SWAP_ENB|TI_MHC_WORD_SWAP_ENB|TI_MHC_CLEARINT)

#define TI_MHC_LITTLEENDIAN_INIT \
(TI_MHC_WORD_SWAP_ENB|TI_MHC_CLEARINT)

/*
* Tigon chip rev values. Rev 4 is the Tigon 1. Rev 6 is the Tigon 2.
* Rev 5 is also the Tigon 2, but is a broken version which was never
* used in any actual hardware, so we ignore it.
*/
#define TI_REV_TIGON_I 0x40000000
#define TI_REV_TIGON_II 0x60000000

/*
* Firmware revision that we want.
*/
#define TI_FIRMWARE_MAJOR 0xc
#define TI_FIRMWARE_MINOR 0x4
#define TI_FIRMWARE_FIX 0xd

/*
* Miscellaneous Local Control register.
*/
#define TI_MLC_EE_WRITE_ENB 0x00000010
#define TI_MLC_SRAM_BANK_256K 0x00000200
#define TI_MLC_SRAM_BANK_SIZE 0x00000300 /* Tigon 2 only */
#define TI_MLC_LOCALADDR_21 0x00004000
#define TI_MLC_LOCALADDR_22 0x00008000
#define TI_MLC_SBUS_WRITEERR 0x00080000
#define TI_MLC_EE_CLK 0x00100000
#define TI_MLC_EE_TXEN 0x00200000
#define TI_MLC_EE_DOUT 0x00400000
#define TI_MLC_EE_DIN 0x00800000

/*
* Offset of MAC address inside EEPROM.
*/
#define TI_EE_MAC_OFFSET 0x8c

#define TI_DMA_ASSIST 0x11C
#define TI_CPU_STATE 0x140
#define TI_CPU_PROGRAM_COUNTER 0x144
#define TI_SRAM_ADDR 0x154
#define TI_SRAM_DATA 0x158
#define TI_GEN_0 0x180
#define TI_GEN_X 0x1FC
#define TI_MAC_TX_STATE 0x200
#define TI_MAC_RX_STATE 0x220
#define TI_CPU_CTL_B 0x240 /* Tigon 2 only */
#define TI_CPU_PROGRAM_COUNTER_B 0x244 /* Tigon 2 only */
#define TI_SRAM_ADDR_B 0x254 /* Tigon 2 only */
#define TI_SRAM_DATA_B 0x258 /* Tigon 2 only */
#define TI_GEN_B_0 0x280 /* Tigon 2 only */
#define TI_GEN_B_X 0x2FC /* Tigon 2 only */

/*
* Misc config register.
*/
#define TI_MCR_SRAM_SYNCHRONOUS 0x00100000 /* Tigon 2 only */

/*
* PCI state register.
*/
#define TI_PCISTATE_FORCE_RESET 0x00000001
#define TI_PCISTATE_PROVIDE_LEN 0x00000002
#define TI_PCISTATE_READ_MAXDMA 0x0000001C
#define TI_PCISTATE_WRITE_MAXDMA 0x000000E0
#define TI_PCISTATE_MINDMA 0x0000FF00
#define TI_PCISTATE_FIFO_RETRY_ENB 0x00010000
#define TI_PCISTATE_USE_MEM_RD_MULT 0x00020000
#define TI_PCISTATE_NO_SWAP_READ_DMA 0x00040000
#define TI_PCISTATE_NO_SWAP_WRITE_DMA 0x00080000
#define TI_PCISTATE_66MHZ_BUS 0x00080000 /* Tigon 2 only */
#define TI_PCISTATE_32BIT_BUS 0x00100000 /* Tigon 2 only */
#define TI_PCISTATE_ENB_BYTE_ENABLES 0x00800000 /* Tigon 2 only */
#define TI_PCISTATE_READ_CMD 0x0F000000
#define TI_PCISTATE_WRITE_CMD 0xF0000000

#define TI_PCI_READMAX_4 0x04
#define TI_PCI_READMAX_16 0x08
#define TI_PCI_READMAX_32 0x0C
#define TI_PCI_READMAX_64 0x10
#define TI_PCI_READMAX_128 0x14
#define TI_PCI_READMAX_256 0x18
#define TI_PCI_READMAX_1024 0x1C

#define TI_PCI_WRITEMAX_4 0x20
#define TI_PCI_WRITEMAX_16 0x40
#define TI_PCI_WRITEMAX_32 0x60
#define TI_PCI_WRITEMAX_64 0x80
#define TI_PCI_WRITEMAX_128 0xA0
#define TI_PCI_WRITEMAX_256 0xC0
#define TI_PCI_WRITEMAX_1024 0xE0

#define TI_PCI_READ_CMD 0x06000000
#define TI_PCI_WRITE_CMD 0x70000000

/*
* DMA state register.
*/
#define TI_DMASTATE_ENABLE 0x00000001
#define TI_DMASTATE_PAUSE 0x00000002

/*
* CPU state register.
*/
#define TI_CPUSTATE_RESET 0x00000001
#define TI_CPUSTATE_STEP 0x00000002
#define TI_CPUSTATE_ROMFAIL 0x00000010
#define TI_CPUSTATE_HALT 0x00010000
/*
* MAC TX state register
*/
#define TI_TXSTATE_RESET 0x00000001
#define TI_TXSTATE_ENB 0x00000002
#define TI_TXSTATE_STOP 0x00000004

/*
* MAC RX state register
*/
#define TI_RXSTATE_RESET 0x00000001
#define TI_RXSTATE_ENB 0x00000002
#define TI_RXSTATE_STOP 0x00000004

/*
* Tigon 2 mailbox registers. The mailbox area consists of 256 bytes
* split into 64 bit registers. Only the lower 32 bits of each mailbox
* are used.
*/
#define TI_MB_HOSTINTR_HI 0x500
#define TI_MB_HOSTINTR_LO 0x504
#define TI_MB_HOSTINTR TI_MB_HOSTINTR_LO
#define TI_MB_CMDPROD_IDX_HI 0x508
#define TI_MB_CMDPROD_IDX_LO 0x50C
#define TI_MB_CMDPROD_IDX TI_MB_CMDPROD_IDX_LO
#define TI_MB_SENDPROD_IDX_HI 0x510
#define TI_MB_SENDPROD_IDX_LO 0x514
#define TI_MB_SENDPROD_IDX TI_MB_SENDPROD_IDX_LO
#define TI_MB_STDRXPROD_IDX_HI 0x518 /* Tigon 2 only */
#define TI_MB_STDRXPROD_IDX_LO 0x51C /* Tigon 2 only */
#define TI_MB_STDRXPROD_IDX TI_MB_STDRXPROD_IDX_LO
#define TI_MB_JUMBORXPROD_IDX_HI 0x520 /* Tigon 2 only */
#define TI_MB_JUMBORXPROD_IDX_LO 0x524 /* Tigon 2 only */
#define TI_MB_JUMBORXPROD_IDX TI_MB_JUMBORXPROD_IDX_LO
#define TI_MB_MINIRXPROD_IDX_HI 0x528 /* Tigon 2 only */
#define TI_MB_MINIRXPROD_IDX_LO 0x52C /* Tigon 2 only */
#define TI_MB_MINIRXPROD_IDX TI_MB_MINIRXPROD_IDX_LO
#define TI_MB_RSVD 0x530

/*
* Tigon 2 general communication registers. These are 64 and 32 bit
* registers which are only valid after the firmware has been
* loaded and started. They actually exist in NIC memory but are
* mapped into the host memory via the shared memory region.
*
* The NIC internally maps these registers starting at address 0,
* so to determine the NIC address of any of these registers, we
* subtract 0x600 (the address of the first register).
*/

#define TI_GCR_BASE 0x600
#define TI_GCR_MACADDR 0x600
#define TI_GCR_PAR0 0x600
#define TI_GCR_PAR1 0x604
#define TI_GCR_GENINFO_HI 0x608
#define TI_GCR_GENINFO_LO 0x60C
#define TI_GCR_MCASTADDR 0x610 /* obsolete */
#define TI_GCR_MAR0 0x610 /* obsolete */
#define TI_GCR_MAR1 0x614 /* obsolete */
#define TI_GCR_OPMODE 0x618
#define TI_GCR_DMA_READCFG 0x61C
#define TI_GCR_DMA_WRITECFG 0x620
#define TI_GCR_TX_BUFFER_RATIO 0x624
#define TI_GCR_EVENTCONS_IDX 0x628
#define TI_GCR_CMDCONS_IDX 0x62C
#define TI_GCR_TUNEPARMS 0x630
#define TI_GCR_RX_COAL_TICKS 0x630
#define TI_GCR_TX_COAL_TICKS 0x634
#define TI_GCR_STAT_TICKS 0x638
#define TI_GCR_TX_MAX_COAL_BD 0x63C
#define TI_GCR_RX_MAX_COAL_BD 0x640
#define TI_GCR_NIC_TRACING 0x644
#define TI_GCR_GLINK 0x648
#define TI_GCR_LINK 0x64C
#define TI_GCR_NICTRACE_PTR 0x650
#define TI_GCR_NICTRACE_START 0x654
#define TI_GCR_NICTRACE_LEN 0x658
#define TI_GCR_IFINDEX 0x65C
#define TI_GCR_IFMTU 0x660
#define TI_GCR_MASK_INTRS 0x664
#define TI_GCR_GLINK_STAT 0x668
#define TI_GCR_LINK_STAT 0x66C
#define TI_GCR_RXRETURNCONS_IDX 0x680
#define TI_GCR_CMDRING 0x700

#define TI_GCR_NIC_ADDR(x) (x - TI_GCR_BASE);

/*
* Local memory window. The local memory window is a 2K shared
* memory region which can be used to access the NIC's internal
* SRAM. The window can be mapped to a given 2K region using
* the TI_WINDOW_BASE register.
*/
#define TI_WINDOW 0x800
#define TI_WINLEN 0x800

#define TI_TICKS_PER_SEC 1000000

/*
* Operation mode register.
*/
#define TI_OPMODE_BYTESWAP_BD 0x00000002
#define TI_OPMODE_WORDSWAP_BD 0x00000004
#define TI_OPMODE_WARN_ENB 0x00000008 /* not yet implemented */
#define TI_OPMODE_BYTESWAP_DATA 0x00000010
#define TI_OPMODE_1_DMA_ACTIVE 0x00000040
#define TI_OPMODE_SBUS 0x00000100
#define TI_OPMODE_DONT_FRAG_JUMBO 0x00000200
#define TI_OPMODE_INCLUDE_CRC 0x00000400
#define TI_OPMODE_RX_BADFRAMES 0x00000800
#define TI_OPMODE_NO_EVENT_INTRS 0x00001000
#define TI_OPMODE_NO_TX_INTRS 0x00002000
#define TI_OPMODE_NO_RX_INTRS 0x00004000
#define TI_OPMODE_FATAL_ENB 0x40000000 /* not yet implemented */

/*
* DMA configuration thresholds.
*/
#define TI_DMA_STATE_THRESH_16W 0x00000100
#define TI_DMA_STATE_THRESH_8W 0x00000080
#define TI_DMA_STATE_THRESH_4W 0x00000040
#define TI_DMA_STATE_THRESH_2W 0x00000020
#define TI_DMA_STATE_THRESH_1W 0x00000010

#define TI_DMA_STATE_FORCE_32_BIT 0x00000008

/*
* Gigabit link status bits.
*/
#define TI_GLNK_SENSE_NO_BEG 0x00002000
#define TI_GLNK_LOOPBACK 0x00004000
#define TI_GLNK_PREF 0x00008000
#define TI_GLNK_1000MB 0x00040000
#define TI_GLNK_FULL_DUPLEX 0x00080000
#define TI_GLNK_TX_FLOWCTL_Y 0x00200000 /* Tigon 2 only */
#define TI_GLNK_RX_FLOWCTL_Y 0x00800000
#define TI_GLNK_AUTONEGENB 0x20000000
#define TI_GLNK_ENB 0x40000000

/*
* Link status bits.
*/
#define TI_LNK_LOOPBACK 0x00004000
#define TI_LNK_PREF 0x00008000
#define TI_LNK_10MB 0x00010000
#define TI_LNK_100MB 0x00020000
#define TI_LNK_1000MB 0x00040000
#define TI_LNK_FULL_DUPLEX 0x00080000
#define TI_LNK_HALF_DUPLEX 0x00100000
#define TI_LNK_TX_FLOWCTL_Y 0x00200000 /* Tigon 2 only */
#define TI_LNK_RX_FLOWCTL_Y 0x00800000
#define TI_LNK_AUTONEGENB 0x20000000
#define TI_LNK_ENB 0x40000000

/*
* Ring size constants.
*/
#define TI_EVENT_RING_CNT 256
#define TI_CMD_RING_CNT 64
#define TI_STD_RX_RING_CNT 512
#define TI_JUMBO_RX_RING_CNT 256
#define TI_MINI_RX_RING_CNT 1024
#define TI_RETURN_RING_CNT 2048

/*
* Possible TX ring sizes.
*/
#define TI_TX_RING_CNT_128 128
#define TI_TX_RING_BASE_128 0x3800

#define TI_TX_RING_CNT_256 256
#define TI_TX_RING_BASE_256 0x3000

#define TI_TX_RING_CNT_512 512
#define TI_TX_RING_BASE_512 0x2000

#define TI_TX_RING_CNT TI_TX_RING_CNT_512
#define TI_TX_RING_BASE TI_TX_RING_BASE_512

/*
* The Tigon can have up to 8MB of external SRAM, however the Tigon 1
* is limited to 2MB total, and in general I think most adapters have
* around 1MB. We use this value for zeroing the NIC's SRAM, so to
* be safe we use the largest possible value (zeroing memory that
* isn't there doesn't hurt anything).
*/
#define TI_MEM_MAX 0x7FFFFF

/*
* Even on the alpha, pci addresses are 32-bit quantities
*/

#ifdef __64_bit_pci_addressing__
typedef struct {
u_int64_t ti_addr;
} ti_hostaddr;
#define TI_HOSTADDR(x) x.ti_addr
#else
typedef struct {
uint32_t ti_addr_hi;
uint32_t ti_addr_lo;
} ti_hostaddr;
#define TI_HOSTADDR(x) x.ti_addr_lo
#endif

/*
* Ring control block structure. The rules for the max_len field
* are as follows:
*
* For the send ring, max_len indicates the number of entries in the
* ring (128, 256 or 512).
*
* For the standard receive ring, max_len indicates the threshold
* used to decide when a frame should be put in the jumbo receive ring
* instead of the standard one.
*
* For the mini ring, max_len indicates the size of the buffers in the
* ring. This is the value used to decide when a frame is small enough
* to be placed in the mini ring.
*
* For the return receive ring, max_len indicates the number of entries
* in the ring. It can be one of 2048, 1024 or 0 (which is the same as
* 2048 for backwards compatibility). The value 1024 can only be used
* if the mini ring is disabled.
*/
struct ti_rcb {
ti_hostaddr ti_hostaddr;
#if BYTE_ORDER == BIG_ENDIAN
uint16_t ti_max_len;
uint16_t ti_flags;
#else
uint16_t ti_flags;
uint16_t ti_max_len;
#endif
uint32_t ti_unused;
};

#define TI_RCB_FLAG_TCP_UDP_CKSUM 0x00000001
#define TI_RCB_FLAG_IP_CKSUM 0x00000002
#define TI_RCB_FLAG_NO_PHDR_CKSUM 0x00000008
#define TI_RCB_FLAG_VLAN_ASSIST 0x00000010
#define TI_RCB_FLAG_COAL_UPD_ONLY 0x00000020
#define TI_RCB_FLAG_HOST_RING 0x00000040
#define TI_RCB_FLAG_IEEE_SNAP_CKSUM 0x00000080
#define TI_RCB_FLAG_USE_EXT_RX_BD 0x00000100
#define TI_RCB_FLAG_RING_DISABLED 0x00000200

struct ti_producer {
uint32_t ti_idx;
uint32_t ti_unused;
};

/*
* Tigon statistics counters.
*/
struct ti_stats {
/*
* MAC stats, taken from RFC 1643, ethernet-like MIB
*/
volatile uint32_t dot3StatsAlignmentErrors; /* 0 */
volatile uint32_t dot3StatsFCSErrors; /* 1 */
volatile uint32_t dot3StatsSingleCollisionFrames; /* 2 */
volatile uint32_t dot3StatsMultipleCollisionFrames; /* 3 */
volatile uint32_t dot3StatsSQETestErrors; /* 4 */
volatile uint32_t dot3StatsDeferredTransmissions; /* 5 */
volatile uint32_t dot3StatsLateCollisions; /* 6 */
volatile uint32_t dot3StatsExcessiveCollisions; /* 7 */
volatile uint32_t dot3StatsInternalMacTransmitErrors; /* 8 */
volatile uint32_t dot3StatsCarrierSenseErrors; /* 9 */
volatile uint32_t dot3StatsFrameTooLongs; /* 10 */
volatile uint32_t dot3StatsInternalMacReceiveErrors; /* 11 */
/*
* interface stats, taken from RFC 1213, MIB-II, interfaces group
*/
volatile uint32_t ifIndex; /* 12 */
volatile uint32_t ifType; /* 13 */
volatile uint32_t ifMtu; /* 14 */
volatile uint32_t ifSpeed; /* 15 */
volatile uint32_t ifAdminStatus; /* 16 */
#define IF_ADMIN_STATUS_UP 1
#define IF_ADMIN_STATUS_DOWN 2
#define IF_ADMIN_STATUS_TESTING 3
volatile uint32_t ifOperStatus; /* 17 */
#define IF_OPER_STATUS_UP 1
#define IF_OPER_STATUS_DOWN 2
#define IF_OPER_STATUS_TESTING 3
#define IF_OPER_STATUS_UNKNOWN 4
#define IF_OPER_STATUS_DORMANT 5
volatile uint32_t ifLastChange; /* 18 */
volatile uint32_t ifInDiscards; /* 19 */
volatile uint32_t ifInErrors; /* 20 */
volatile uint32_t ifInUnknownProtos; /* 21 */
volatile uint32_t ifOutDiscards; /* 22 */
volatile uint32_t ifOutErrors; /* 23 */
volatile uint32_t ifOutQLen; /* deprecated */ /* 24 */
volatile uint8_t ifPhysAddress[8]; /* 8 bytes */ /* 25 - 26 */
volatile uint8_t ifDescr[32]; /* 27 - 34 */
uint32_t alignIt; /* align to 64 bit for uint64_ts following */
/*
* more interface stats, taken from RFC 1573, MIB-IIupdate,
* interfaces group
*/
volatile uint64_t ifHCInOctets; /* 36 - 37 */
volatile uint64_t ifHCInUcastPkts; /* 38 - 39 */
volatile uint64_t ifHCInMulticastPkts; /* 40 - 41 */
volatile uint64_t ifHCInBroadcastPkts; /* 42 - 43 */
volatile uint64_t ifHCOutOctets; /* 44 - 45 */
volatile uint64_t ifHCOutUcastPkts; /* 46 - 47 */
volatile uint64_t ifHCOutMulticastPkts; /* 48 - 49 */
volatile uint64_t ifHCOutBroadcastPkts; /* 50 - 51 */
volatile uint32_t ifLinkUpDownTrapEnable; /* 52 */
volatile uint32_t ifHighSpeed; /* 53 */
volatile uint32_t ifPromiscuousMode; /* 54 */
volatile uint32_t ifConnectorPresent; /* follow link state 55 */
/*
* Host Commands
*/
volatile uint32_t nicCmdsHostState; /* 56 */
volatile uint32_t nicCmdsFDRFiltering; /* 57 */
volatile uint32_t nicCmdsSetRecvProdIndex; /* 58 */
volatile uint32_t nicCmdsUpdateGencommStats; /* 59 */
volatile uint32_t nicCmdsResetJumboRing; /* 60 */
volatile uint32_t nicCmdsAddMCastAddr; /* 61 */
volatile uint32_t nicCmdsDelMCastAddr; /* 62 */
volatile uint32_t nicCmdsSetPromiscMode; /* 63 */
volatile uint32_t nicCmdsLinkNegotiate; /* 64 */
volatile uint32_t nicCmdsSetMACAddr; /* 65 */
volatile uint32_t nicCmdsClearProfile; /* 66 */
volatile uint32_t nicCmdsSetMulticastMode; /* 67 */
volatile uint32_t nicCmdsClearStats; /* 68 */
volatile uint32_t nicCmdsSetRecvJumboProdIndex; /* 69 */
volatile uint32_t nicCmdsSetRecvMiniProdIndex; /* 70 */
volatile uint32_t nicCmdsRefreshStats; /* 71 */
volatile uint32_t nicCmdsUnknown; /* 72 */
/*
* NIC Events
*/
volatile uint32_t nicEventsNICFirmwareOperational; /* 73 */
volatile uint32_t nicEventsStatsUpdated; /* 74 */
volatile uint32_t nicEventsLinkStateChanged; /* 75 */
volatile uint32_t nicEventsError; /* 76 */
volatile uint32_t nicEventsMCastListUpdated; /* 77 */
volatile uint32_t nicEventsResetJumboRing; /* 78 */
/*
* Ring manipulation
*/
volatile uint32_t nicRingSetSendProdIndex; /* 79 */
volatile uint32_t nicRingSetSendConsIndex; /* 80 */
volatile uint32_t nicRingSetRecvReturnProdIndex; /* 81 */
/*
* Interrupts
*/
volatile uint32_t nicInterrupts; /* 82 */
volatile uint32_t nicAvoidedInterrupts; /* 83 */
/*
* BD Coalescing Thresholds
*/
volatile uint32_t nicEventThresholdHit; /* 84 */
volatile uint32_t nicSendThresholdHit; /* 85 */
volatile uint32_t nicRecvThresholdHit; /* 86 */
/*
* DMA Attentions
*/
volatile uint32_t nicDmaRdOverrun; /* 87 */
volatile uint32_t nicDmaRdUnderrun; /* 88 */
volatile uint32_t nicDmaWrOverrun; /* 89 */
volatile uint32_t nicDmaWrUnderrun; /* 90 */
volatile uint32_t nicDmaWrMasterAborts; /* 91 */
volatile uint32_t nicDmaRdMasterAborts; /* 92 */
/*
* NIC Resources
*/
volatile uint32_t nicDmaWriteRingFull; /* 93 */
volatile uint32_t nicDmaReadRingFull; /* 94 */
volatile uint32_t nicEventRingFull; /* 95 */
volatile uint32_t nicEventProducerRingFull; /* 96 */
volatile uint32_t nicTxMacDescrRingFull; /* 97 */
volatile uint32_t nicOutOfTxBufSpaceFrameRetry; /* 98 */
volatile uint32_t nicNoMoreWrDMADescriptors; /* 99 */
volatile uint32_t nicNoMoreRxBDs; /* 100 */
volatile uint32_t nicNoSpaceInReturnRing; /* 101 */
volatile uint32_t nicSendBDs; /* current count 102 */
volatile uint32_t nicRecvBDs; /* current count 103 */
volatile uint32_t nicJumboRecvBDs; /* current count 104 */
volatile uint32_t nicMiniRecvBDs; /* current count 105 */
volatile uint32_t nicTotalRecvBDs; /* current count 106 */
volatile uint32_t nicTotalSendBDs; /* current count 107 */
volatile uint32_t nicJumboSpillOver; /* 108 */
volatile uint32_t nicSbusHangCleared; /* 109 */
volatile uint32_t nicEnqEventDelayed; /* 110 */
/*
* Stats from MAC rx completion
*/
volatile uint32_t nicMacRxLateColls; /* 111 */
volatile uint32_t nicMacRxLinkLostDuringPkt; /* 112 */
volatile uint32_t nicMacRxPhyDecodeErr; /* 113 */
volatile uint32_t nicMacRxMacAbort; /* 114 */
volatile uint32_t nicMacRxTruncNoResources; /* 115 */
/*
* Stats from the mac_stats area
*/
volatile uint32_t nicMacRxDropUla; /* 116 */
volatile uint32_t nicMacRxDropMcast; /* 117 */
volatile uint32_t nicMacRxFlowControl; /* 118 */
volatile uint32_t nicMacRxDropSpace; /* 119 */
volatile uint32_t nicMacRxColls; /* 120 */
/*
* MAC RX Attentions
*/
volatile uint32_t nicMacRxTotalAttns; /* 121 */
volatile uint32_t nicMacRxLinkAttns; /* 122 */
volatile uint32_t nicMacRxSyncAttns; /* 123 */
volatile uint32_t nicMacRxConfigAttns; /* 124 */
volatile uint32_t nicMacReset; /* 125 */
volatile uint32_t nicMacRxBufDescrAttns; /* 126 */
volatile uint32_t nicMacRxBufAttns; /* 127 */
volatile uint32_t nicMacRxZeroFrameCleanup; /* 128 */
volatile uint32_t nicMacRxOneFrameCleanup; /* 129 */
volatile uint32_t nicMacRxMultipleFrameCleanup; /* 130 */
volatile uint32_t nicMacRxTimerCleanup; /* 131 */
volatile uint32_t nicMacRxDmaCleanup; /* 132 */
/*
* Stats from the mac_stats area
*/
volatile uint32_t nicMacTxCollisionHistogram[15]; /* 133 */
/*
* MAC TX Attentions
*/
volatile uint32_t nicMacTxTotalAttns; /* 134 */
/*
* NIC Profile
*/
volatile uint32_t nicProfile[32]; /* 135 */
/*
* Pat to 1024 bytes.
*/
uint32_t pad[75];
};
/*
* Tigon general information block. This resides in host memory
* and contains the status counters, ring control blocks and
* producer pointers.
*/

struct ti_gib {
struct ti_stats ti_stats;
struct ti_rcb ti_ev_rcb;
struct ti_rcb ti_cmd_rcb;
struct ti_rcb ti_tx_rcb;
struct ti_rcb ti_std_rx_rcb;
struct ti_rcb ti_jumbo_rx_rcb;
struct ti_rcb ti_mini_rx_rcb;
struct ti_rcb ti_return_rcb;
ti_hostaddr ti_ev_prodidx_ptr;
ti_hostaddr ti_return_prodidx_ptr;
ti_hostaddr ti_tx_considx_ptr;
ti_hostaddr ti_refresh_stats_ptr;
};

/*
* Buffer descriptor structures. There are basically three types
* of structures: normal receive descriptors, extended receive
* descriptors and transmit descriptors. The extended receive
* descriptors are optionally used only for the jumbo receive ring.
*/

struct ti_rx_desc {
ti_hostaddr ti_addr;
#if BYTE_ORDER == BIG_ENDIAN
uint16_t ti_idx;
uint16_t ti_len;
#else
uint16_t ti_len;
uint16_t ti_idx;
#endif
#if BYTE_ORDER == BIG_ENDIAN
uint16_t ti_type;
uint16_t ti_flags;
#else
uint16_t ti_flags;
uint16_t ti_type;
#endif
#if BYTE_ORDER == BIG_ENDIAN
uint16_t ti_ip_cksum;
uint16_t ti_tcp_udp_cksum;
#else
uint16_t ti_tcp_udp_cksum;
uint16_t ti_ip_cksum;
#endif
#if BYTE_ORDER == BIG_ENDIAN
uint16_t ti_error_flags;
uint16_t ti_vlan_tag;
#else
uint16_t ti_vlan_tag;
uint16_t ti_error_flags;
#endif
uint32_t ti_rsvd;
uint32_t ti_opaque;
};

struct ti_rx_desc_ext {
ti_hostaddr ti_addr1;
ti_hostaddr ti_addr2;
ti_hostaddr ti_addr3;
#if BYTE_ORDER == BIG_ENDIAN
uint16_t ti_len1;
uint16_t ti_len2;
#else
uint16_t ti_len2;
uint16_t ti_len1;
#endif
#if BYTE_ORDER == BIG_ENDIAN
uint16_t ti_len3;
uint16_t ti_rsvd0;
#else
uint16_t ti_rsvd0;
uint16_t ti_len3;
#endif
ti_hostaddr ti_addr0;
#if BYTE_ORDER == BIG_ENDIAN
uint16_t ti_idx;
uint16_t ti_len0;
#else
uint16_t ti_len0;
uint16_t ti_idx;
#endif
#if BYTE_ORDER == BIG_ENDIAN
uint16_t ti_type;
uint16_t ti_flags;
#else
uint16_t ti_flags;
uint16_t ti_type;
#endif
#if BYTE_ORDER == BIG_ENDIAN
uint16_t ti_ip_cksum;
uint16_t ti_tcp_udp_cksum;
#else
uint16_t ti_tcp_udp_cksum;
uint16_t ti_ip_cksum;
#endif
#if BYTE_ORDER == BIG_ENDIAN
uint16_t ti_error_flags;
uint16_t ti_vlan_tag;
#else
uint16_t ti_vlan_tag;
uint16_t ti_error_flags;
#endif
uint32_t ti_rsvd1;
uint32_t ti_opaque;
};

/*
* Transmit descriptors are, mercifully, very small.
*/
struct ti_tx_desc {
ti_hostaddr ti_addr;
#if BYTE_ORDER == BIG_ENDIAN
uint16_t ti_len;
uint16_t ti_flags;
#else
uint16_t ti_flags;
uint16_t ti_len;
#endif
#if BYTE_ORDER == BIG_ENDIAN
uint16_t ti_rsvd;
uint16_t ti_vlan_tag;
#else
uint16_t ti_vlan_tag;
uint16_t ti_rsvd;
#endif
};

/*
* NOTE! On the Alpha, we have an alignment constraint.
* The first thing in the packet is a 14-byte Ethernet header.
* This means that the packet is misaligned. To compensate,
* we actually offset the data 2 bytes into the cluster. This
* aligns the packet after the Ethernet header at a 32-bit
* boundary.
*/

#define TI_PAGE_SIZE PAGE_SIZE

/*
* Buffer descriptor error flags.
*/
#define TI_BDERR_CRC 0x0001
#define TI_BDERR_COLLDETECT 0x0002
#define TI_BDERR_LINKLOST 0x0004
#define TI_BDERR_DECODE 0x0008
#define TI_BDERR_ODD_NIBBLES 0x0010
#define TI_BDERR_MAC_ABRT 0x0020
#define TI_BDERR_RUNT 0x0040
#define TI_BDERR_TRUNC 0x0080
#define TI_BDERR_GIANT 0x0100

/*
* Buffer descriptor flags.
*/
#define TI_BDFLAG_TCP_UDP_CKSUM 0x0001
#define TI_BDFLAG_IP_CKSUM 0x0002
#define TI_BDFLAG_END 0x0004
#define TI_BDFLAG_MORE 0x0008
#define TI_BDFLAG_JUMBO_RING 0x0010
#define TI_BDFLAG_UCAST_PKT 0x0020
#define TI_BDFLAG_MCAST_PKT 0x0040
#define TI_BDFLAG_BCAST_PKT 0x0060
#define TI_BDFLAG_IP_FRAG 0x0080
#define TI_BDFLAG_IP_FRAG_END 0x0100
#define TI_BDFLAG_VLAN_TAG 0x0200
#define TI_BDFLAG_ERROR 0x0400
#define TI_BDFLAG_COAL_NOW 0x0800
#define TI_BDFLAG_MINI_RING 0x1000

/*
* Descriptor type flags. I think these only have meaning for
* the Tigon 1. I had to extract them from the sample driver source
* since they aren't in the manual.
*/
#define TI_BDTYPE_TYPE_NULL 0x0000
#define TI_BDTYPE_SEND_BD 0x0001
#define TI_BDTYPE_RECV_BD 0x0002
#define TI_BDTYPE_RECV_JUMBO_BD 0x0003
#define TI_BDTYPE_RECV_BD_LAST 0x0004
#define TI_BDTYPE_SEND_DATA 0x0005
#define TI_BDTYPE_SEND_DATA_LAST 0x0006
#define TI_BDTYPE_RECV_DATA 0x0007
#define TI_BDTYPE_RECV_DATA_LAST 0x000b
#define TI_BDTYPE_EVENT_RUPT 0x000c
#define TI_BDTYPE_EVENT_NO_RUPT 0x000d
#define TI_BDTYPE_ODD_START 0x000e
#define TI_BDTYPE_UPDATE_STATS 0x000f
#define TI_BDTYPE_SEND_DUMMY_DMA 0x0010
#define TI_BDTYPE_EVENT_PROD 0x0011
#define TI_BDTYPE_TX_CONS 0x0012
#define TI_BDTYPE_RX_PROD 0x0013
#define TI_BDTYPE_REFRESH_STATS 0x0014
#define TI_BDTYPE_SEND_DATA_LAST_VLAN 0x0015
#define TI_BDTYPE_SEND_DATA_COAL 0x0016
#define TI_BDTYPE_SEND_DATA_LAST_COAL 0x0017
#define TI_BDTYPE_SEND_DATA_LAST_VLAN_COAL 0x0018
#define TI_BDTYPE_TX_CONS_NO_INTR 0x0019

/*
* Tigon command structure.
*/
struct ti_cmd_desc {
uint32_t ti_cmdx;
};

#define TI_CMD_CMD(cmd) (((((cmd)->ti_cmdx)) >> 24) & 0xff)
#define TI_CMD_CODE(cmd) (((((cmd)->ti_cmdx)) >> 12) & 0xfff)
#define TI_CMD_IDX(cmd) ((((cmd)->ti_cmdx)) & 0xfff)

#define TI_CMD_HOST_STATE 0x01
#define TI_CMD_CODE_STACK_UP 0x01
#define TI_CMD_CODE_STACK_DOWN 0x02

/*
* This command enables software address filtering. It's a workaround
* for a bug in the Tigon 1 and not implemented for the Tigon 2.
*/
#define TI_CMD_FDR_FILTERING 0x02
#define TI_CMD_CODE_FILT_ENB 0x01
#define TI_CMD_CODE_FILT_DIS 0x02

#define TI_CMD_SET_RX_PROD_IDX 0x03 /* obsolete */
#define TI_CMD_UPDATE_GENCOM 0x04
#define TI_CMD_RESET_JUMBO_RING 0x05
#define TI_CMD_SET_PARTIAL_RX_CNT 0x06
#define TI_CMD_ADD_MCAST_ADDR 0x08 /* obsolete */
#define TI_CMD_DEL_MCAST_ADDR 0x09 /* obsolete */

#define TI_CMD_SET_PROMISC_MODE 0x0A
#define TI_CMD_CODE_PROMISC_ENB 0x01
#define TI_CMD_CODE_PROMISC_DIS 0x02

#define TI_CMD_LINK_NEGOTIATION 0x0B
#define TI_CMD_CODE_NEGOTIATE_BOTH 0x00
#define TI_CMD_CODE_NEGOTIATE_GIGABIT 0x01
#define TI_CMD_CODE_NEGOTIATE_10_100 0x02

#define TI_CMD_SET_MAC_ADDR 0x0C
#define TI_CMD_CLR_PROFILE 0x0D

#define TI_CMD_SET_ALLMULTI 0x0E
#define TI_CMD_CODE_ALLMULTI_ENB 0x01
#define TI_CMD_CODE_ALLMULTI_DIS 0x02

#define TI_CMD_CLR_STATS 0x0F
#define TI_CMD_SET_RX_JUMBO_PROD_IDX 0x10 /* obsolete */
#define TI_CMD_RFRSH_STATS 0x11

#define TI_CMD_EXT_ADD_MCAST 0x12
#define TI_CMD_EXT_DEL_MCAST 0x13

/*
* Utility macros to make issuing commands a little simpler. Assumes
* that 'sc' and 'cmd' are in local scope.
*/
#define TI_DO_CMD(x, y, z) do { \
cmd.ti_cmdx = (((x) << 24) | ((y) << 12) | ((z))); \
ti_cmd(sc, &cmd); \
} while(0)

#define TI_DO_CMD_EXT(x, y, z, v, w) do { \
cmd.ti_cmdx = (((x) << 24) | ((y) << 12) | ((z))); \
ti_cmd_ext(sc, &cmd, (v), (w)); \
} while(0)

/*
* Other utility macros.
*/
#define TI_INC(x, y) do { (x) = ((x) + 1) % (y); } while(0)

#define TI_UPDATE_JUMBOPROD(x, y) do { \
if ((x)->ti_hwrev == TI_HWREV_TIGON) \
TI_DO_CMD(TI_CMD_SET_RX_JUMBO_PROD_IDX, 0, y); \
else \
CSR_WRITE_4(x, TI_MB_JUMBORXPROD_IDX, y); \
} while(0)

#define TI_UPDATE_MINIPROD(x, y) \
CSR_WRITE_4(x, TI_MB_MINIRXPROD_IDX, y)

#define TI_UPDATE_STDPROD(x, y) do { \
if ((x)->ti_hwrev == TI_HWREV_TIGON) \
TI_DO_CMD(TI_CMD_SET_RX_PROD_IDX, 0, y); \
else \
CSR_WRITE_4(x, TI_MB_STDRXPROD_IDX, y); \
} while(0)

/*
* Tigon event structure.
*/
struct ti_event_desc {
uint32_t ti_eventx;
uint32_t ti_rsvd;
};

#define TI_EVENT_EVENT(e) (((((e)->ti_eventx)) >> 24) & 0xff)
#define TI_EVENT_CODE(e) (((((e)->ti_eventx)) >> 12) & 0xfff)
#define TI_EVENT_IDX(e) (((((e)->ti_eventx))) & 0xfff)

/*
* Tigon events.
*/
#define TI_EV_FIRMWARE_UP 0x01
#define TI_EV_STATS_UPDATED 0x04

#define TI_EV_LINKSTAT_CHANGED 0x06
#define TI_EV_CODE_GIG_LINK_UP 0x01
#define TI_EV_CODE_LINK_DOWN 0x02
#define TI_EV_CODE_LINK_UP 0x03

#define TI_EV_ERROR 0x07
#define TI_EV_CODE_ERR_INVAL_CMD 0x01
#define TI_EV_CODE_ERR_UNIMP_CMD 0x02
#define TI_EV_CODE_ERR_BADCFG 0x03

#define TI_EV_MCAST_UPDATED 0x08
#define TI_EV_CODE_MCAST_ADD 0x01
#define TI_EV_CODE_MCAST_DEL 0x02

#define TI_EV_RESET_JUMBO_RING 0x09
/*
* Register access macros. The Tigon always uses memory mapped register
* accesses and all registers must be accessed with 32 bit operations.
* The Tigon can operate in big-endian mode, so we always write to the
* registers in native byte order. We assume that all big-endian hosts
* with a PCI bus have __BUS_SPACE_HAS_STREAM_METHODS defined.
*/

#ifdef __BUS_SPACE_HAS_STREAM_METHODS
#define CSR_WRITE_4(sc, reg, val) \
bus_space_write_stream_4((sc)->ti_btag, (sc)->ti_bhandle, reg, val)

#define CSR_READ_4(sc, reg) \
bus_space_read_stream_4((sc)->ti_btag, (sc)->ti_bhandle, reg)
#else
#define CSR_WRITE_4(sc, reg, val) \
bus_space_write_4((sc)->ti_btag, (sc)->ti_bhandle, reg, val)

#define CSR_READ_4(sc, reg) \
bus_space_read_4((sc)->ti_btag, (sc)->ti_bhandle, reg)
#endif

#define TI_SETBIT(sc, reg, x) \
CSR_WRITE_4(sc, reg, (CSR_READ_4(sc, reg) | (x)))
#define TI_CLRBIT(sc, reg, x) \
CSR_WRITE_4(sc, reg, (CSR_READ_4(sc, reg) & ~(x)))

/*
* Memory management stuff. Note: the SSLOTS, MSLOTS and JSLOTS
* values are tuneable. They control the actual amount of buffers
* allocated for the standard, mini and jumbo receive rings.
*/

#ifndef TI_SSLOTS
#define TI_SSLOTS 256
#endif
#ifndef TI_MSLOTS
#define TI_MSLOTS 256
#endif
#ifndef TI_JSLOTS
#define TI_JSLOTS 384
#endif
#define TI_RSLOTS 128

#define TI_JRAWLEN (ETHER_MAX_LEN_JUMBO + ETHER_ALIGN + sizeof(uint64_t))
#define TI_JLEN (TI_JRAWLEN + (sizeof(uint64_t) - \
(TI_JRAWLEN % sizeof(uint64_t))))
#define TI_JPAGESZ PAGE_SIZE
#define TI_RESID (TI_JPAGESZ - (TI_JLEN * TI_JSLOTS) % TI_JPAGESZ)
#define TI_JMEM ((TI_JLEN * TI_JSLOTS) + TI_RESID)

/*
* Ring structures. Most of these reside in host memory and we tell
* the NIC where they are via the ring control blocks. The exceptions
* are the tx and command rings, which live in NIC memory and which
* we access via the shared memory window.
*/
struct ti_ring_data {
struct ti_rx_desc ti_rx_std_ring[TI_STD_RX_RING_CNT];
struct ti_rx_desc ti_rx_jumbo_ring[TI_JUMBO_RX_RING_CNT];
struct ti_rx_desc ti_rx_mini_ring[TI_MINI_RX_RING_CNT];
struct ti_rx_desc ti_rx_return_ring[TI_RETURN_RING_CNT];
struct ti_event_desc ti_event_ring[TI_EVENT_RING_CNT];
struct ti_tx_desc ti_tx_ring[TI_TX_RING_CNT];
/*
* Make sure producer structures are aligned on 32-byte cache
* line boundaries.
*/
struct ti_producer ti_ev_prodidx_r;
uint32_t ti_pad0[6];
struct ti_producer ti_return_prodidx_r;
uint32_t ti_pad1[6];
struct ti_producer ti_tx_considx_r;
uint32_t ti_pad2[6];
struct ti_gib ti_info;
};

#define TI_CDOFF(x) offsetof(struct ti_ring_data, x)
#define TI_CDRXSTDOFF(x) TI_CDOFF(ti_rx_std_ring[(x)])
#define TI_CDRXJUMBOOFF(x) TI_CDOFF(ti_rx_jumbo_ring[(x)])
#define TI_CDRXMINIOFF(x) TI_CDOFF(ti_rx_mini_ring[(x)])
#define TI_CDRXRTNOFF(x) TI_CDOFF(ti_rx_return_ring[(x)])
#define TI_CDEVENTOFF(x) TI_CDOFF(ti_event_ring[(x)])
#define TI_CDTXOFF(x) TI_CDOFF(ti_tx_ring[(x)])
#define TI_CDEVPRODOFF TI_CDOFF(ti_ev_prodidx_r)
#define TI_CDRTNPRODOFF TI_CDOFF(ti_return_prodidx_r)
#define TI_CDTXCONSOFF TI_CDOFF(ti_tx_considx_r)
#define TI_CDGIBOFF TI_CDOFF(ti_info)
#define TI_CDSTATSOFF TI_CDOFF(ti_info.ti_stats)

/*
* Mbuf pointers. We need these to keep track of the virtual addresses
* of our mbuf chains since we can only convert from physical to virtual,
* not the other way around.
*/
struct ti_chain_data {
struct mbuf *ti_tx_chain[TI_TX_RING_CNT];
struct mbuf *ti_rx_std_chain[TI_STD_RX_RING_CNT];
struct mbuf *ti_rx_jumbo_chain[TI_JUMBO_RX_RING_CNT];
struct mbuf *ti_rx_mini_chain[TI_MINI_RX_RING_CNT];
/* Stick the jumbo mem management stuff here too. */
void * ti_jslots[TI_JSLOTS];
void *ti_jumbo_buf;
};

struct ti_type {
uint16_t ti_vid;
uint16_t ti_did;
const char *ti_name;
};

#define TI_HWREV_TIGON 0x01
#define TI_HWREV_TIGON_II 0x02
#define TI_TIMEOUT 1000
#define TI_TXCONS_UNSET 0xFFFF /* impossible value */

struct ti_mc_entry {
struct ether_addr mc_addr;
SIMPLEQ_ENTRY(ti_mc_entry) mc_entries;
};

struct ti_jpool_entry {
int slot;
SIMPLEQ_ENTRY(ti_jpool_entry) jpool_entries;
};

struct txdmamap_pool_entry {
bus_dmamap_t dmamap;
SIMPLEQ_ENTRY(txdmamap_pool_entry) link;
};

struct ti_softc {
device_t sc_dev;
struct ethercom ethercom; /* interface info */
bus_space_handle_t ti_bhandle;
char *ti_vhandle;
bus_space_tag_t ti_btag;
void *ti_intrhand;

struct ifmedia ifmedia; /* media info */

uint8_t ti_hwrev; /* Tigon rev (1 or 2) */
uint8_t ti_copper; /* 1000baseT card */
uint8_t ti_linkstat; /* Link state */
struct ti_ring_data *ti_rdata; /* rings */
#define ti_ev_prodidx ti_rdata->ti_ev_prodidx_r
#define ti_return_prodidx ti_rdata->ti_return_prodidx_r
#define ti_tx_considx ti_rdata->ti_tx_considx_r

struct ti_tx_desc *ti_tx_ring_nic;/* pointer to shared mem */

struct ti_chain_data ti_cdata; /* mbufs */

uint64_t ti_if_collisions;

/*
* Function pointers to deal with Tigon 1 vs. Tigon 2 differences.
*/
int (*sc_tx_encap)(struct ti_softc *,
struct mbuf *, uint32_t *);
void (*sc_tx_eof)(struct ti_softc *);

uint16_t ti_tx_saved_considx;
uint16_t ti_rx_saved_considx;
uint16_t ti_ev_saved_considx;
uint16_t ti_cmd_saved_prodidx;
uint16_t ti_std; /* current std ring head */
uint16_t ti_mini; /* current mini ring head */
uint16_t ti_jumbo; /* current jumbo ring head */
SIMPLEQ_HEAD(, ti_mc_entry) ti_mc_listhead;
SIMPLEQ_HEAD(, ti_jpool_entry) ti_jfree_listhead;
SIMPLEQ_HEAD(, ti_jpool_entry) ti_jinuse_listhead;
uint32_t ti_stat_ticks;
uint32_t ti_rx_coal_ticks;
uint32_t ti_tx_coal_ticks;
uint32_t ti_rx_max_coal_bds;
uint32_t ti_tx_max_coal_bds;
uint32_t ti_tx_buf_ratio;
u_short ti_if_flags;
int ti_txcnt;
void *sc_ih;
bus_dma_tag_t sc_dmat;
bus_dmamap_t info_dmamap; /* holds ti_rdata */
uint32_t info_dmaaddr; /* XXX 64-bit PCI addresses? */
bus_dmamap_t jumbo_dmamap;
uint32_t jumbo_dmaaddr; /* XXX 64-bit PCI addresses? */
bus_dmamap_t mini_dmamap[TI_MINI_RX_RING_CNT];
bus_dmamap_t std_dmamap[TI_STD_RX_RING_CNT];
SIMPLEQ_HEAD(, txdmamap_pool_entry) txdma_list;
struct txdmamap_pool_entry *txdma[TI_TX_RING_CNT];
};

#define TI_CDRXSTDADDR(sc, x) ((sc)->info_dmaaddr + TI_CDRXSTDOFF((x)))
#define TI_CDRXJUMBOADDR(sc, x) ((sc)->info_dmaaddr + TI_CDRXJUMBOOFF((x)))
#define TI_CDRXMINIADDR(sc, x) ((sc)->info_dmaaddr + TI_CDRXMINIOFF((x)))
#define TI_CDRXRTNADDR(sc, x) ((sc)->info_dmaaddr + TI_CDRXRTNOFF((x)))
#define TI_CDEVENTADDR(sc, x) ((sc)->info_dmaaddr + TI_CDEVENTOFF((x)))
#define TI_CDTXADDR(sc, x) ((sc)->info_dmaaddr + TI_CDTXOFF((x)))
#define TI_CDEVPRODADDR(sc) ((sc)->info_dmaaddr + TI_CDEVPRODOFF)
#define TI_CDRTNPRODADDR(sc) ((sc)->info_dmaaddr + TI_CDRTNPRODOFF)
#define TI_CDTXCONSADDR(sc) ((sc)->info_dmaaddr + TI_CDTXCONSOFF)
#define TI_CDGIBADDR(sc) ((sc)->info_dmaaddr + TI_CDGIBOFF)
#define TI_CDSTATSADDR(sc) ((sc)->info_dmaaddr + TI_CDSTATSOFF)

#define TI_CDRXSTDSYNC(sc, x, ops) \
bus_dmamap_sync((sc)->sc_dmat, (sc)->info_dmamap, \
TI_CDRXSTDOFF((x)), sizeof(struct ti_rx_desc), (ops))

#define TI_CDRXJUMBOSYNC(sc, x, ops) \
bus_dmamap_sync((sc)->sc_dmat, (sc)->info_dmamap, \
TI_CDRXJUMBOOFF((x)), sizeof(struct ti_rx_desc), (ops))

#define TI_CDRXMINISYNC(sc, x, ops) \
bus_dmamap_sync((sc)->sc_dmat, (sc)->info_dmamap, \
TI_CDRXMINIOFF((x)), sizeof(struct ti_rx_desc), (ops))

#define TI_CDRXRTNSYNC(sc, x, ops) \
bus_dmamap_sync((sc)->sc_dmat, (sc)->info_dmamap, \
TI_CDRXRTNOFF((x)), sizeof(struct ti_rx_desc), (ops))

#define TI_CDEVENTSYNC(sc, x, ops) \
bus_dmamap_sync((sc)->sc_dmat, (sc)->info_dmamap, \
TI_CDEVENTOFF((x)), sizeof(struct ti_event_desc), (ops))

#define TI_CDTXSYNC(sc, x, n, ops) \
do { \
int __x, __n; \
\
__x = (x); \
__n = (n); \
\
/* If it will wrap around, sync to the end of the ring. */ \
if ((__x + __n) > TI_TX_RING_CNT) { \
bus_dmamap_sync((sc)->sc_dmat, (sc)->info_dmamap, \
TI_CDTXOFF(__x), sizeof(struct ti_tx_desc) * \
(TI_TX_RING_CNT - __x), (ops)); \
__n -= (TI_TX_RING_CNT - __x); \
__x = 0; \
} \
\
/* Now sync whatever is left. */ \
bus_dmamap_sync((sc)->sc_dmat, (sc)->info_dmamap, \
TI_CDTXOFF(__x), sizeof(struct ti_tx_desc) * (__n), (ops)); \
} while (/*CONSTCOND*/0)

#define TI_CEVPRODSYNC(sc, ops) \
bus_dmamap_sync((sc)->sc_dmat, (sc)->info_dmamap, \
TI_CDEVPRODOFF, sizeof(struct ti_producer), (ops))

#define TI_CDRTNPRODSYNC(sc, ops) \
bus_dmamap_sync((sc)->sc_dmat, (sc)->info_dmamap, \
TI_CDRTNPRODOFF, sizeof(struct ti_producer), (ops))

#define TI_CDTXCONSSYNC(sc, ops) \
bus_dmamap_sync((sc)->sc_dmat, (sc)->info_dmamap, \
TI_CDTXCONSOFF, sizeof(struct ti_producer), (ops))

#define TI_CDGIBSYNC(sc, ops) \
bus_dmamap_sync((sc)->sc_dmat, (sc)->info_dmamap, \
TI_CDGIBOFF, sizeof(struct ti_gib), (ops))

#define TI_CDSTATSSYNC(sc, ops) \
bus_dmamap_sync((sc)->sc_dmat, (sc)->info_dmamap, \
TI_CDSTATSOFF, sizeof(struct ti_stats), (ops))

/*
* Microchip Technology 24Cxx EEPROM control bytes
*/
#define EEPROM_CTL_READ 0xA1 /* 0101 0001 */
#define EEPROM_CTL_WRITE 0xA0 /* 0101 0000 */

/*
* Note that EEPROM_START leaves transmission enabled.
*/
#define EEPROM_START() do { \
TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); /* Pull clock pin high */\
TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT); /* Set DATA bit to 1 */ \
TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN); /* Enable xmit to write bit */\
TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT); /* Pull DATA bit to 0 again */\
TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); /* Pull clock low again */ \
} while(0)

/*
* EEPROM_STOP ends access to the EEPROM and clears the ETXEN bit so
* that no further data can be written to the EEPROM I/O pin.
*/
#define EEPROM_STOP() do { \
TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN); /* Disable xmit */ \
TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT); /* Pull DATA to 0 */ \
TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); /* Pull clock high */ \
TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN); /* Enable xmit */ \
TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT); /* Toggle DATA to 1 */ \
TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN); /* Disable xmit. */ \
TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); /* Pull clock low again */ \
} while(0)