fabbaac560
Unlike TX interrupt, ST201 does not provide any mechanism to suppress RX interrupts. ste(4) can generate more than 70k RX interrupts under heavy RX traffics such that these excessive interrupts make system useless to process other useful things. Maybe this was the major reason why polling support code was introduced to ste(4). The STE_COUNTDOWN register provides a programmable counter that will generate an interrupt upon its expiration. We program STE_DMACTL register to use 3.2us clock rate to drive the counter register. Whenever ste(4) serves RX interrupt, the driver rearm the timer to expire after STE_IM_RX_TIMER_DEFAULT time and disables further generation of RX interrupts. This trick seems to work well and ste(4) generates less than 8k RX interrupts even under 64 bytes UDP torture test. Combined with TX interrupts, the total number of interrupts are less than 10k which looks reasonable on heavily loaded controller. The default RX interrupt moderation time is 150us. Users can change the value at any time with dev.ste.%d.int_rx_mod sysctl node. Setting it 0 effectively disables the RX interrupt moderation feature. Now we have both TX/RX interrupt moderation code so remove loop of interrupt handler which resulted in sub-optimal performance as well as more register accesses.
610 lines
18 KiB
C
610 lines
18 KiB
C
/*-
|
|
* Copyright (c) 1997, 1998, 1999
|
|
* Bill Paul <wpaul@ctr.columbia.edu>. 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* Sundance PCI device/vendor ID for the
|
|
* ST201 chip.
|
|
*/
|
|
#define ST_VENDORID 0x13F0
|
|
#define ST_DEVICEID_ST201_1 0x0200
|
|
#define ST_DEVICEID_ST201_2 0x0201
|
|
|
|
/*
|
|
* D-Link PCI device/vendor ID for the DL10050[AB] chip
|
|
*/
|
|
#define DL_VENDORID 0x1186
|
|
#define DL_DEVICEID_DL10050 0x1002
|
|
|
|
/*
|
|
* Register definitions for the Sundance Technologies ST201 PCI
|
|
* fast ethernet controller. The register space is 128 bytes long and
|
|
* can be accessed using either PCI I/O space or PCI memory mapping.
|
|
* There are 32-bit, 16-bit and 8-bit registers.
|
|
*/
|
|
|
|
#define STE_DMACTL 0x00
|
|
#define STE_TX_DMALIST_PTR 0x04
|
|
#define STE_TX_DMABURST_THRESH 0x08
|
|
#define STE_TX_DMAURG_THRESH 0x09
|
|
#define STE_TX_DMAPOLL_PERIOD 0x0A
|
|
#define STE_RX_DMASTATUS 0x0C
|
|
#define STE_RX_DMALIST_PTR 0x10
|
|
#define STE_RX_DMABURST_THRESH 0x14
|
|
#define STE_RX_DMAURG_THRESH 0x15
|
|
#define STE_RX_DMAPOLL_PERIOD 0x16
|
|
#define STE_COUNTDOWN 0x18
|
|
#define STE_DEBUGCTL 0x1A
|
|
#define STE_ASICCTL 0x30
|
|
#define STE_EEPROM_DATA 0x34
|
|
#define STE_EEPROM_CTL 0x36
|
|
#define STE_FIFOCTL 0x3A
|
|
#define STE_TX_STARTTHRESH 0x3C
|
|
#define STE_RX_EARLYTHRESH 0x3E
|
|
#define STE_EXT_ROMADDR 0x40
|
|
#define STE_EXT_ROMDATA 0x44
|
|
#define STE_WAKE_EVENT 0x45
|
|
#define STE_TX_STATUS 0x46
|
|
#define STE_TX_FRAMEID 0x47
|
|
#define STE_ISR_ACK 0x4A
|
|
#define STE_IMR 0x4C
|
|
#define STE_ISR 0x4E
|
|
#define STE_MACCTL0 0x50
|
|
#define STE_MACCTL1 0x52
|
|
#define STE_PAR0 0x54
|
|
#define STE_PAR1 0x56
|
|
#define STE_PAR2 0x58
|
|
#define STE_MAX_FRAMELEN 0x5A
|
|
#define STE_RX_MODE 0x5C
|
|
#define STE_TX_RECLAIM_THRESH 0x5D
|
|
#define STE_PHYCTL 0x5E
|
|
#define STE_MAR0 0x60
|
|
#define STE_MAR1 0x62
|
|
#define STE_MAR2 0x64
|
|
#define STE_MAR3 0x66
|
|
|
|
#define STE_STAT_RX_OCTETS_LO 0x68
|
|
#define STE_STAT_RX_OCTETS_HI 0x6A
|
|
#define STE_STAT_TX_OCTETS_LO 0x6C
|
|
#define STE_STAT_TX_OCTETS_HI 0x6E
|
|
#define STE_STAT_TX_FRAMES 0x70
|
|
#define STE_STAT_RX_FRAMES 0x72
|
|
#define STE_STAT_CARRIER_ERR 0x74
|
|
#define STE_STAT_LATE_COLLS 0x75
|
|
#define STE_STAT_MULTI_COLLS 0x76
|
|
#define STE_STAT_SINGLE_COLLS 0x77
|
|
#define STE_STAT_TX_DEFER 0x78
|
|
#define STE_STAT_RX_LOST 0x79
|
|
#define STE_STAT_TX_EXDEFER 0x7A
|
|
#define STE_STAT_TX_ABORT 0x7B
|
|
#define STE_STAT_TX_BCAST 0x7C
|
|
#define STE_STAT_RX_BCAST 0x7D
|
|
#define STE_STAT_TX_MCAST 0x7E
|
|
#define STE_STAT_RX_MCAST 0x7F
|
|
|
|
#define STE_DMACTL_RXDMA_STOPPED 0x00000001
|
|
#define STE_DMACTL_TXDMA_CMPREQ 0x00000002
|
|
#define STE_DMACTL_TXDMA_STOPPED 0x00000004
|
|
#define STE_DMACTL_RXDMA_COMPLETE 0x00000008
|
|
#define STE_DMACTL_TXDMA_COMPLETE 0x00000010
|
|
#define STE_DMACTL_RXDMA_STALL 0x00000100
|
|
#define STE_DMACTL_RXDMA_UNSTALL 0x00000200
|
|
#define STE_DMACTL_TXDMA_STALL 0x00000400
|
|
#define STE_DMACTL_TXDMA_UNSTALL 0x00000800
|
|
#define STE_DMACTL_TXDMA_INPROG 0x00004000
|
|
#define STE_DMACTL_DMA_HALTINPROG 0x00008000
|
|
#define STE_DMACTL_RXEARLY_ENABLE 0x00020000
|
|
#define STE_DMACTL_COUNTDOWN_SPEED 0x00040000
|
|
#define STE_DMACTL_COUNTDOWN_MODE 0x00080000
|
|
#define STE_DMACTL_MWI_DISABLE 0x00100000
|
|
#define STE_DMACTL_RX_DISCARD_OFLOWS 0x00400000
|
|
#define STE_DMACTL_COUNTDOWN_ENABLE 0x00800000
|
|
#define STE_DMACTL_TARGET_ABORT 0x40000000
|
|
#define STE_DMACTL_MASTER_ABORT 0x80000000
|
|
|
|
/*
|
|
* TX DMA burst thresh is the number of 32-byte blocks that
|
|
* must be loaded into the TX Fifo before a TXDMA burst request
|
|
* will be issued.
|
|
*/
|
|
#define STE_TXDMABURST_THRESH 0x1F
|
|
|
|
/*
|
|
* The number of 32-byte blocks in the TX FIFO falls below the
|
|
* TX DMA urgent threshold, a TX DMA urgent request will be
|
|
* generated.
|
|
*/
|
|
#define STE_TXDMAURG_THRESH 0x3F
|
|
|
|
/*
|
|
* Number of 320ns intervals between polls of the TXDMA next
|
|
* descriptor pointer (if we're using polling mode).
|
|
*/
|
|
#define STE_TXDMA_POLL_PERIOD 0x7F
|
|
|
|
#define STE_RX_DMASTATUS_FRAMELEN 0x00001FFF
|
|
#define STE_RX_DMASTATUS_RXERR 0x00004000
|
|
#define STE_RX_DMASTATUS_DMADONE 0x00008000
|
|
#define STE_RX_DMASTATUS_FIFO_OFLOW 0x00010000
|
|
#define STE_RX_DMASTATUS_RUNT 0x00020000
|
|
#define STE_RX_DMASTATUS_ALIGNERR 0x00040000
|
|
#define STE_RX_DMASTATUS_CRCERR 0x00080000
|
|
#define STE_RX_DMASTATUS_GIANT 0x00100000
|
|
#define STE_RX_DMASTATUS_DRIBBLE 0x00800000
|
|
#define STE_RX_DMASTATUS_DMA_OFLOW 0x01000000
|
|
|
|
/*
|
|
* RX DMA burst thresh is the number of 32-byte blocks that
|
|
* must be present in the RX FIFO before a RXDMA bus master
|
|
* request will be issued.
|
|
*/
|
|
#define STE_RXDMABURST_THRESH 0xFF
|
|
|
|
/*
|
|
* The number of 32-byte blocks in the RX FIFO falls below the
|
|
* RX DMA urgent threshold, a RX DMA urgent request will be
|
|
* generated.
|
|
*/
|
|
#define STE_RXDMAURG_THRESH 0x1F
|
|
|
|
/*
|
|
* Number of 320ns intervals between polls of the RXDMA complete
|
|
* bit in the status field on the current RX descriptor (if we're
|
|
* using polling mode).
|
|
*/
|
|
#define STE_RXDMA_POLL_PERIOD 0x7F
|
|
|
|
#define STE_DEBUGCTL_GPIO0_CTL 0x0001
|
|
#define STE_DEBUGCTL_GPIO1_CTL 0x0002
|
|
#define STE_DEBUGCTL_GPIO0_DATA 0x0004
|
|
#define STE_DEBUGCTL_GPIO1_DATA 0x0008
|
|
|
|
#define STE_ASICCTL_ROMSIZE 0x00000002
|
|
#define STE_ASICCTL_TX_LARGEPKTS 0x00000004
|
|
#define STE_ASICCTL_RX_LARGEPKTS 0x00000008
|
|
#define STE_ASICCTL_EXTROM_DISABLE 0x00000010
|
|
#define STE_ASICCTL_PHYSPEED_10 0x00000020
|
|
#define STE_ASICCTL_PHYSPEED_100 0x00000040
|
|
#define STE_ASICCTL_PHYMEDIA 0x00000080
|
|
#define STE_ASICCTL_FORCEDCONFIG 0x00000700
|
|
#define STE_ASICCTL_D3RESET_DISABLE 0x00000800
|
|
#define STE_ASICCTL_SPEEDUPMODE 0x00002000
|
|
#define STE_ASICCTL_LEDMODE 0x00004000
|
|
#define STE_ASICCTL_RSTOUT_POLARITY 0x00008000
|
|
#define STE_ASICCTL_GLOBAL_RESET 0x00010000
|
|
#define STE_ASICCTL_RX_RESET 0x00020000
|
|
#define STE_ASICCTL_TX_RESET 0x00040000
|
|
#define STE_ASICCTL_DMA_RESET 0x00080000
|
|
#define STE_ASICCTL_FIFO_RESET 0x00100000
|
|
#define STE_ASICCTL_NETWORK_RESET 0x00200000
|
|
#define STE_ASICCTL_HOST_RESET 0x00400000
|
|
#define STE_ASICCTL_AUTOINIT_RESET 0x00800000
|
|
#define STE_ASICCTL_EXTRESET_RESET 0x01000000
|
|
#define STE_ASICCTL_SOFTINTR 0x02000000
|
|
#define STE_ASICCTL_RESET_BUSY 0x04000000
|
|
|
|
#define STE_EECTL_ADDR 0x00FF
|
|
#define STE_EECTL_OPCODE 0x0300
|
|
#define STE_EECTL_BUSY 0x1000
|
|
|
|
#define STE_EEOPCODE_WRITE 0x0100
|
|
#define STE_EEOPCODE_READ 0x0200
|
|
#define STE_EEOPCODE_ERASE 0x0300
|
|
|
|
#define STE_FIFOCTL_RAMTESTMODE 0x0001
|
|
#define STE_FIFOCTL_OVERRUNMODE 0x0200
|
|
#define STE_FIFOCTL_RXFIFOFULL 0x0800
|
|
#define STE_FIFOCTL_TX_BUSY 0x4000
|
|
#define STE_FIFOCTL_RX_BUSY 0x8000
|
|
|
|
/*
|
|
* The number of bytes that must in present in the TX FIFO before
|
|
* transmission begins. Value should be in increments of 4 bytes.
|
|
*/
|
|
#define STE_TXSTART_THRESH 0x1FFC
|
|
|
|
/*
|
|
* Number of bytes that must be present in the RX FIFO before
|
|
* an RX EARLY interrupt is generated.
|
|
*/
|
|
#define STE_RXEARLY_THRESH 0x1FFC
|
|
|
|
#define STE_WAKEEVENT_WAKEPKT_ENB 0x01
|
|
#define STE_WAKEEVENT_MAGICPKT_ENB 0x02
|
|
#define STE_WAKEEVENT_LINKEVT_ENB 0x04
|
|
#define STE_WAKEEVENT_WAKEPOLARITY 0x08
|
|
#define STE_WAKEEVENT_WAKEPKTEVENT 0x10
|
|
#define STE_WAKEEVENT_MAGICPKTEVENT 0x20
|
|
#define STE_WAKEEVENT_LINKEVENT 0x40
|
|
#define STE_WAKEEVENT_WAKEONLAN_ENB 0x80
|
|
|
|
#define STE_TXSTATUS_RECLAIMERR 0x02
|
|
#define STE_TXSTATUS_STATSOFLOW 0x04
|
|
#define STE_TXSTATUS_EXCESSCOLLS 0x08
|
|
#define STE_TXSTATUS_UNDERRUN 0x10
|
|
#define STE_TXSTATUS_TXINTR_REQ 0x40
|
|
#define STE_TXSTATUS_TXDONE 0x80
|
|
|
|
#define STE_ERR_BITS "\20" \
|
|
"\2RECLAIM\3STSOFLOW" \
|
|
"\4EXCESSCOLLS\5UNDERRUN" \
|
|
"\6INTREQ\7DONE"
|
|
|
|
#define STE_ISRACK_INTLATCH 0x0001
|
|
#define STE_ISRACK_HOSTERR 0x0002
|
|
#define STE_ISRACK_TX_DONE 0x0004
|
|
#define STE_ISRACK_MACCTL_FRAME 0x0008
|
|
#define STE_ISRACK_RX_DONE 0x0010
|
|
#define STE_ISRACK_RX_EARLY 0x0020
|
|
#define STE_ISRACK_SOFTINTR 0x0040
|
|
#define STE_ISRACK_STATS_OFLOW 0x0080
|
|
#define STE_ISRACK_LINKEVENT 0x0100
|
|
#define STE_ISRACK_TX_DMADONE 0x0200
|
|
#define STE_ISRACK_RX_DMADONE 0x0400
|
|
|
|
#define STE_IMR_HOSTERR 0x0002
|
|
#define STE_IMR_TX_DONE 0x0004
|
|
#define STE_IMR_MACCTL_FRAME 0x0008
|
|
#define STE_IMR_RX_DONE 0x0010
|
|
#define STE_IMR_RX_EARLY 0x0020
|
|
#define STE_IMR_SOFTINTR 0x0040
|
|
#define STE_IMR_STATS_OFLOW 0x0080
|
|
#define STE_IMR_LINKEVENT 0x0100
|
|
#define STE_IMR_TX_DMADONE 0x0200
|
|
#define STE_IMR_RX_DMADONE 0x0400
|
|
|
|
#define STE_INTRS \
|
|
(STE_IMR_RX_DMADONE|STE_IMR_TX_DMADONE| \
|
|
STE_IMR_TX_DONE|STE_IMR_SOFTINTR| \
|
|
STE_IMR_HOSTERR)
|
|
|
|
#define STE_ISR_INTLATCH 0x0001
|
|
#define STE_ISR_HOSTERR 0x0002
|
|
#define STE_ISR_TX_DONE 0x0004
|
|
#define STE_ISR_MACCTL_FRAME 0x0008
|
|
#define STE_ISR_RX_DONE 0x0010
|
|
#define STE_ISR_RX_EARLY 0x0020
|
|
#define STE_ISR_SOFTINTR 0x0040
|
|
#define STE_ISR_STATS_OFLOW 0x0080
|
|
#define STE_ISR_LINKEVENT 0x0100
|
|
#define STE_ISR_TX_DMADONE 0x0200
|
|
#define STE_ISR_RX_DMADONE 0x0400
|
|
|
|
/*
|
|
* Note: the Sundance manual gives the impression that the's
|
|
* only one 32-bit MACCTL register. In fact, there are two
|
|
* 16-bit registers side by side, and you have to access them
|
|
* separately.
|
|
*/
|
|
#define STE_MACCTL0_IPG 0x0003
|
|
#define STE_MACCTL0_FULLDUPLEX 0x0020
|
|
#define STE_MACCTL0_RX_GIANTS 0x0040
|
|
#define STE_MACCTL0_FLOWCTL_ENABLE 0x0100
|
|
#define STE_MACCTL0_RX_FCS 0x0200
|
|
#define STE_MACCTL0_FIFOLOOPBK 0x0400
|
|
#define STE_MACCTL0_MACLOOPBK 0x0800
|
|
|
|
#define STE_MACCTL1_COLLDETECT 0x0001
|
|
#define STE_MACCTL1_CARRSENSE 0x0002
|
|
#define STE_MACCTL1_TX_BUSY 0x0004
|
|
#define STE_MACCTL1_TX_ERROR 0x0008
|
|
#define STE_MACCTL1_STATS_ENABLE 0x0020
|
|
#define STE_MACCTL1_STATS_DISABLE 0x0040
|
|
#define STE_MACCTL1_STATS_ENABLED 0x0080
|
|
#define STE_MACCTL1_TX_ENABLE 0x0100
|
|
#define STE_MACCTL1_TX_DISABLE 0x0200
|
|
#define STE_MACCTL1_TX_ENABLED 0x0400
|
|
#define STE_MACCTL1_RX_ENABLE 0x0800
|
|
#define STE_MACCTL1_RX_DISABLE 0x1000
|
|
#define STE_MACCTL1_RX_ENABLED 0x2000
|
|
#define STE_MACCTL1_PAUSED 0x4000
|
|
|
|
#define STE_IPG_96BT 0x00000000
|
|
#define STE_IPG_128BT 0x00000001
|
|
#define STE_IPG_224BT 0x00000002
|
|
#define STE_IPG_544BT 0x00000003
|
|
|
|
#define STE_RXMODE_UNICAST 0x01
|
|
#define STE_RXMODE_ALLMULTI 0x02
|
|
#define STE_RXMODE_BROADCAST 0x04
|
|
#define STE_RXMODE_PROMISC 0x08
|
|
#define STE_RXMODE_MULTIHASH 0x10
|
|
#define STE_RXMODE_ALLIPMULTI 0x20
|
|
|
|
#define STE_PHYCTL_MCLK 0x01
|
|
#define STE_PHYCTL_MDATA 0x02
|
|
#define STE_PHYCTL_MDIR 0x04
|
|
#define STE_PHYCTL_CLK25_DISABLE 0x08
|
|
#define STE_PHYCTL_DUPLEXPOLARITY 0x10
|
|
#define STE_PHYCTL_DUPLEXSTAT 0x20
|
|
#define STE_PHYCTL_SPEEDSTAT 0x40
|
|
#define STE_PHYCTL_LINKSTAT 0x80
|
|
|
|
#define STE_TIMER_TICKS 32
|
|
#define STE_TIMER_USECS(x) ((x * 10) / STE_TIMER_TICKS)
|
|
|
|
#define STE_IM_RX_TIMER_MIN 0
|
|
#define STE_IM_RX_TIMER_MAX 209712
|
|
#define STE_IM_RX_TIMER_DEFAULT 150
|
|
|
|
/*
|
|
* EEPROM offsets.
|
|
*/
|
|
#define STE_EEADDR_CONFIGPARM 0x00
|
|
#define STE_EEADDR_ASICCTL 0x02
|
|
#define STE_EEADDR_SUBSYS_ID 0x04
|
|
#define STE_EEADDR_SUBVEN_ID 0x08
|
|
|
|
#define STE_EEADDR_NODE0 0x10
|
|
#define STE_EEADDR_NODE1 0x12
|
|
#define STE_EEADDR_NODE2 0x14
|
|
|
|
/* PCI registers */
|
|
#define STE_PCI_VENDOR_ID 0x00
|
|
#define STE_PCI_DEVICE_ID 0x02
|
|
#define STE_PCI_COMMAND 0x04
|
|
#define STE_PCI_STATUS 0x06
|
|
#define STE_PCI_CLASSCODE 0x09
|
|
#define STE_PCI_LATENCY_TIMER 0x0D
|
|
#define STE_PCI_HEADER_TYPE 0x0E
|
|
#define STE_PCI_LOIO 0x10
|
|
#define STE_PCI_LOMEM 0x14
|
|
#define STE_PCI_BIOSROM 0x30
|
|
#define STE_PCI_INTLINE 0x3C
|
|
#define STE_PCI_INTPIN 0x3D
|
|
#define STE_PCI_MINGNT 0x3E
|
|
#define STE_PCI_MINLAT 0x0F
|
|
|
|
#define STE_PCI_CAPID 0x50 /* 8 bits */
|
|
#define STE_PCI_NEXTPTR 0x51 /* 8 bits */
|
|
#define STE_PCI_PWRMGMTCAP 0x52 /* 16 bits */
|
|
#define STE_PCI_PWRMGMTCTRL 0x54 /* 16 bits */
|
|
|
|
#define STE_PSTATE_MASK 0x0003
|
|
#define STE_PSTATE_D0 0x0000
|
|
#define STE_PSTATE_D1 0x0002
|
|
#define STE_PSTATE_D2 0x0002
|
|
#define STE_PSTATE_D3 0x0003
|
|
#define STE_PME_EN 0x0010
|
|
#define STE_PME_STATUS 0x8000
|
|
|
|
struct ste_hw_stats {
|
|
uint64_t rx_bytes;
|
|
uint32_t rx_frames;
|
|
uint32_t rx_bcast_frames;
|
|
uint32_t rx_mcast_frames;
|
|
uint32_t rx_lost_frames;
|
|
uint64_t tx_bytes;
|
|
uint32_t tx_frames;
|
|
uint32_t tx_bcast_frames;
|
|
uint32_t tx_mcast_frames;
|
|
uint32_t tx_carrsense_errs;
|
|
uint32_t tx_single_colls;
|
|
uint32_t tx_multi_colls;
|
|
uint32_t tx_late_colls;
|
|
uint32_t tx_frames_defered;
|
|
uint32_t tx_excess_defers;
|
|
uint32_t tx_abort;
|
|
};
|
|
|
|
struct ste_frag {
|
|
uint32_t ste_addr;
|
|
uint32_t ste_len;
|
|
};
|
|
|
|
#define STE_FRAG_LAST 0x80000000
|
|
#define STE_FRAG_LEN 0x00001FFF
|
|
|
|
/*
|
|
* A TFD is 16 to 512 bytes in length which means it can have up to 126
|
|
* fragments for a single Tx frame. Since most frames used in stack have
|
|
* 3-4 fragments supporting 8 fragments would be enough for normal
|
|
* operation. If we encounter more than 8 fragments we'll collapse them
|
|
* into a frame that has less than or equal to 8 fragments. Each buffer
|
|
* address of a fragment has no alignment limitation.
|
|
*/
|
|
#define STE_MAXFRAGS 8
|
|
|
|
struct ste_desc {
|
|
uint32_t ste_next;
|
|
uint32_t ste_ctl;
|
|
struct ste_frag ste_frags[STE_MAXFRAGS];
|
|
};
|
|
|
|
/*
|
|
* A RFD has the same structure of TFD which in turn means hardware
|
|
* supports scatter operation in Rx buffer. Since we just allocate Rx
|
|
* buffer with m_getcl(9) there is no fragmentation at all so use
|
|
* single fragment for RFD.
|
|
*/
|
|
struct ste_desc_onefrag {
|
|
uint32_t ste_next;
|
|
uint32_t ste_status;
|
|
struct ste_frag ste_frag;
|
|
};
|
|
|
|
#define STE_TXCTL_WORDALIGN 0x00000003
|
|
#define STE_TXCTL_ALIGN_DIS 0x00000001
|
|
#define STE_TXCTL_FRAMEID 0x000003FC
|
|
#define STE_TXCTL_NOCRC 0x00002000
|
|
#define STE_TXCTL_TXINTR 0x00008000
|
|
#define STE_TXCTL_DMADONE 0x00010000
|
|
#define STE_TXCTL_DMAINTR 0x80000000
|
|
|
|
#define STE_RXSTAT_FRAMELEN 0x00001FFF
|
|
#define STE_RXSTAT_FRAME_ERR 0x00004000
|
|
#define STE_RXSTAT_DMADONE 0x00008000
|
|
#define STE_RXSTAT_FIFO_OFLOW 0x00010000
|
|
#define STE_RXSTAT_RUNT 0x00020000
|
|
#define STE_RXSTAT_ALIGNERR 0x00040000
|
|
#define STE_RXSTAT_CRCERR 0x00080000
|
|
#define STE_RXSTAT_GIANT 0x00100000
|
|
#define STE_RXSTAT_DRIBBLEBITS 0x00800000
|
|
#define STE_RXSTAT_DMA_OFLOW 0x01000000
|
|
#define STE_RXATAT_ONEBUF 0x10000000
|
|
|
|
#define STE_RX_BYTES(x) ((x) & STE_RXSTAT_FRAMELEN)
|
|
|
|
/*
|
|
* register space access macros
|
|
*/
|
|
#define CSR_WRITE_4(sc, reg, val) \
|
|
bus_write_4((sc)->ste_res, reg, val)
|
|
#define CSR_WRITE_2(sc, reg, val) \
|
|
bus_write_2((sc)->ste_res, reg, val)
|
|
#define CSR_WRITE_1(sc, reg, val) \
|
|
bus_write_1((sc)->ste_res, reg, val)
|
|
|
|
#define CSR_READ_4(sc, reg) \
|
|
bus_read_4((sc)->ste_res, reg)
|
|
#define CSR_READ_2(sc, reg) \
|
|
bus_read_2((sc)->ste_res, reg)
|
|
#define CSR_READ_1(sc, reg) \
|
|
bus_read_1((sc)->ste_res, reg)
|
|
|
|
#define STE_DESC_ALIGN 8
|
|
#define STE_RX_LIST_CNT 128
|
|
#define STE_TX_LIST_CNT 128
|
|
#define STE_RX_LIST_SZ \
|
|
(sizeof(struct ste_desc_onefrag) * STE_RX_LIST_CNT)
|
|
#define STE_TX_LIST_SZ \
|
|
(sizeof(struct ste_desc) * STE_TX_LIST_CNT)
|
|
#define STE_ADDR_LO(x) ((uint64_t)(x) & 0xFFFFFFFF)
|
|
#define STE_ADDR_HI(x) ((uint64_t)(x) >> 32)
|
|
|
|
/*
|
|
* Since Tx status can hold up to 31 status bytes we should
|
|
* check Tx status before controller fills it up. Otherwise
|
|
* Tx MAC stalls.
|
|
*/
|
|
#define STE_TX_INTR_FRAMES 16
|
|
#define STE_TX_TIMEOUT 5
|
|
#define STE_TIMEOUT 1000
|
|
#define STE_MIN_FRAMELEN 60
|
|
#define STE_PACKET_SIZE 1536
|
|
#define STE_INC(x, y) (x) = (x + 1) % y
|
|
#define STE_DEC(x, y) (x) = ((x) + ((y) - 1)) % (y)
|
|
#define STE_NEXT(x, y) (x + 1) % y
|
|
|
|
struct ste_type {
|
|
uint16_t ste_vid;
|
|
uint16_t ste_did;
|
|
char *ste_name;
|
|
};
|
|
|
|
struct ste_list_data {
|
|
struct ste_desc_onefrag *ste_rx_list;
|
|
bus_addr_t ste_rx_list_paddr;
|
|
struct ste_desc *ste_tx_list;
|
|
bus_addr_t ste_tx_list_paddr;
|
|
};
|
|
|
|
struct ste_chain {
|
|
struct ste_desc *ste_ptr;
|
|
struct mbuf *ste_mbuf;
|
|
struct ste_chain *ste_next;
|
|
uint32_t ste_phys;
|
|
bus_dmamap_t ste_map;
|
|
};
|
|
|
|
struct ste_chain_onefrag {
|
|
struct ste_desc_onefrag *ste_ptr;
|
|
struct mbuf *ste_mbuf;
|
|
struct ste_chain_onefrag *ste_next;
|
|
bus_dmamap_t ste_map;
|
|
};
|
|
|
|
struct ste_chain_data {
|
|
bus_dma_tag_t ste_parent_tag;
|
|
bus_dma_tag_t ste_rx_tag;
|
|
bus_dma_tag_t ste_tx_tag;
|
|
bus_dma_tag_t ste_rx_list_tag;
|
|
bus_dmamap_t ste_rx_list_map;
|
|
bus_dma_tag_t ste_tx_list_tag;
|
|
bus_dmamap_t ste_tx_list_map;
|
|
bus_dmamap_t ste_rx_sparemap;
|
|
struct ste_chain_onefrag ste_rx_chain[STE_RX_LIST_CNT];
|
|
struct ste_chain ste_tx_chain[STE_TX_LIST_CNT];
|
|
struct ste_chain_onefrag *ste_rx_head;
|
|
struct ste_chain *ste_last_tx;
|
|
int ste_tx_prod;
|
|
int ste_tx_cons;
|
|
int ste_tx_cnt;
|
|
};
|
|
|
|
struct ste_softc {
|
|
struct ifnet *ste_ifp;
|
|
struct resource *ste_res;
|
|
int ste_res_id;
|
|
int ste_res_type;
|
|
struct resource *ste_irq;
|
|
void *ste_intrhand;
|
|
struct ste_type *ste_info;
|
|
device_t ste_miibus;
|
|
device_t ste_dev;
|
|
int ste_tx_thresh;
|
|
int ste_flags;
|
|
#define STE_FLAG_ONE_PHY 0x0001
|
|
#define STE_FLAG_LINK 0x8000
|
|
int ste_if_flags;
|
|
int ste_timer;
|
|
int ste_int_rx_act;
|
|
int ste_int_rx_mod;
|
|
struct ste_list_data ste_ldata;
|
|
struct ste_chain_data ste_cdata;
|
|
struct callout ste_callout;
|
|
struct ste_hw_stats ste_stats;
|
|
struct mtx ste_mtx;
|
|
};
|
|
|
|
#define STE_LOCK(_sc) mtx_lock(&(_sc)->ste_mtx)
|
|
#define STE_UNLOCK(_sc) mtx_unlock(&(_sc)->ste_mtx)
|
|
#define STE_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->ste_mtx, MA_OWNED)
|
|
|
|
struct ste_mii_frame {
|
|
uint8_t mii_stdelim;
|
|
uint8_t mii_opcode;
|
|
uint8_t mii_phyaddr;
|
|
uint8_t mii_regaddr;
|
|
uint8_t mii_turnaround;
|
|
uint16_t mii_data;
|
|
};
|
|
|
|
/*
|
|
* MII constants
|
|
*/
|
|
#define STE_MII_STARTDELIM 0x01
|
|
#define STE_MII_READOP 0x02
|
|
#define STE_MII_WRITEOP 0x01
|
|
#define STE_MII_TURNAROUND 0x02
|