343d203cf1
- Modify the driver to poll the link state and positively set the MAC to full or half duplex as needed. Previously, it was possible for the MAC to remain in half duplex even though the PHY had negotiated full duplex with its link partner, which would result in bursty performance. - Program some of the NatSemi's registers as specified by the datasheet. The manual says these are necessary for "optimum perofrmance," though a couple of them are marked as reserved in the register map. *shrug* - Select the TX DMA burst size correctly for 10 and 100mbps modes. Previously I was using 64 bytes in both modes, which worked in 100mbps mode, but resulting in spotty performance in 10mbps. 32 bytes works much better; without this change, the natsemi chip yields piss poor performance at 10mbps. With these fixes, the NatSemi chip finally performs to my satisfaction. I should be merging the support for this controller into -stable shortly. Phew.
450 lines
14 KiB
C
450 lines
14 KiB
C
/*
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* Copyright (c) 1997, 1998, 1999
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* Bill Paul <wpaul@ee.columbia.edu>. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Bill Paul.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* Register definitions for the SiS 900 and SiS 7016 chipsets. The
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* 7016 is actually an older chip and some of its registers differ
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* from the 900, however the core operational registers are the same:
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* the differences lie in the OnNow/Wake on LAN stuff which we don't
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* use anyway. The 7016 needs an external MII compliant PHY while the
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* SiS 900 has one built in. All registers are 32-bits wide.
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*/
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/* Registers common to SiS 900 and SiS 7016 */
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#define SIS_CSR 0x00
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#define SIS_CFG 0x04
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#define SIS_EECTL 0x08
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#define SIS_PCICTL 0x0C
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#define SIS_ISR 0x10
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#define SIS_IMR 0x14
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#define SIS_IER 0x18
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#define SIS_PHYCTL 0x1C
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#define SIS_TX_LISTPTR 0x20
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#define SIS_TX_CFG 0x24
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#define SIS_RX_LISTPTR 0x30
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#define SIS_RX_CFG 0x34
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#define SIS_FLOWCTL 0x38
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#define SIS_RXFILT_CTL 0x48
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#define SIS_RXFILT_DATA 0x4C
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#define SIS_PWRMAN_CTL 0xB0
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#define SIS_PWERMAN_WKUP_EVENT 0xB4
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#define SIS_WKUP_FRAME_CRC 0xBC
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#define SIS_WKUP_FRAME_MASK0 0xC0
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#define SIS_WKUP_FRAME_MASKXX 0xEC
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/* SiS 7016 specific registers */
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#define SIS_SILICON_REV 0x5C
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#define SIS_MIB_CTL0 0x60
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#define SIS_MIB_CTL1 0x64
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#define SIS_MIB_CTL2 0x68
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#define SIS_MIB_CTL3 0x6C
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#define SIS_MIB 0x80
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#define SIS_LINKSTS 0xA0
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#define SIS_TIMEUNIT 0xA4
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#define SIS_GPIO 0xB8
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/* NS DP83815 registers */
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#define NS_BMCR 0x80
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#define NS_BMSR 0x84
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#define NS_PHYIDR1 0x88
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#define NS_PHYIDR2 0x8C
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#define NS_ANAR 0x90
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#define NS_ANLPAR 0x94
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#define NS_ANER 0x98
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#define NS_ANNPTR 0x9C
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#define NS_PHY_CR 0xE4
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#define NS_PHY_10BTSCR 0xE8
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#define NS_PHY_PAGE 0xCC
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#define NS_PHY_EXTCFG 0xF0
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#define NS_PHY_DSPCFG 0xF4
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#define NS_PHY_SDCFG 0xF8
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#define NS_PHY_TDATA 0xFC
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#define SIS_CSR_TX_ENABLE 0x00000001
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#define SIS_CSR_TX_DISABLE 0x00000002
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#define SIS_CSR_RX_ENABLE 0x00000004
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#define SIS_CSR_RX_DISABLE 0x00000008
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#define SIS_CSR_TX_RESET 0x00000010
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#define SIS_CSR_RX_RESET 0x00000020
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#define SIS_CSR_SOFTINTR 0x00000080
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#define SIS_CSR_RESET 0x00000100
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#define SIS_CFG_BIGENDIAN 0x00000001
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#define SIS_CFG_PERR_DETECT 0x00000008
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#define SIS_CFG_DEFER_DISABLE 0x00000010
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#define SIS_CFG_OUTOFWIN_TIMER 0x00000020
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#define SIS_CFG_SINGLE_BACKOFF 0x00000040
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#define SIS_CFG_PCIREQ_ALG 0x00000080
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#define SIS_EECTL_DIN 0x00000001
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#define SIS_EECTL_DOUT 0x00000002
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#define SIS_EECTL_CLK 0x00000004
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#define SIS_EECTL_CSEL 0x00000008
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#define SIS_EECMD_WRITE 0x140
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#define SIS_EECMD_READ 0x180
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#define SIS_EECMD_ERASE 0x1c0
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#define SIS_EE_NODEADDR 0x8
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#define NS_EE_NODEADDR 0x6
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#define SIS_PCICTL_SRAMADDR 0x0000001F
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#define SIS_PCICTL_RAMTSTENB 0x00000020
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#define SIS_PCICTL_TXTSTENB 0x00000040
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#define SIS_PCICTL_RXTSTENB 0x00000080
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#define SIS_PCICTL_BMTSTENB 0x00000200
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#define SIS_PCICTL_RAMADDR 0x001F0000
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#define SIS_PCICTL_ROMTIME 0x0F000000
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#define SIS_PCICTL_DISCTEST 0x40000000
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#define SIS_ISR_RX_OK 0x00000001
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#define SIS_ISR_RX_DESC_OK 0x00000002
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#define SIS_ISR_RX_ERR 0x00000004
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#define SIS_ISR_RX_EARLY 0x00000008
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#define SIS_ISR_RX_IDLE 0x00000010
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#define SIS_ISR_RX_OFLOW 0x00000020
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#define SIS_ISR_TX_OK 0x00000040
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#define SIS_ISR_TX_DESC_OK 0x00000080
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#define SIS_ISR_TX_ERR 0x00000100
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#define SIS_ISR_TX_IDLE 0x00000200
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#define SIS_ISR_TX_UFLOW 0x00000400
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#define SIS_ISR_SOFTINTR 0x00000800
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#define SIS_ISR_HIBITS 0x00008000
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#define SIS_ISR_RX_FIFO_OFLOW 0x00010000
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#define SIS_ISR_TGT_ABRT 0x00100000
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#define SIS_ISR_BM_ABRT 0x00200000
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#define SIS_ISR_SYSERR 0x00400000
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#define SIS_ISR_PARITY_ERR 0x00800000
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#define SIS_ISR_RX_RESET_DONE 0x01000000
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#define SIS_ISR_TX_RESET_DONE 0x02000000
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#define SIS_ISR_TX_PAUSE_START 0x04000000
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#define SIS_ISR_TX_PAUSE_DONE 0x08000000
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#define SIS_ISR_WAKE_EVENT 0x10000000
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#define SIS_IMR_RX_OK 0x00000001
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#define SIS_IMR_RX_DESC_OK 0x00000002
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#define SIS_IMR_RX_ERR 0x00000004
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#define SIS_IMR_RX_EARLY 0x00000008
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#define SIS_IMR_RX_IDLE 0x00000010
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#define SIS_IMR_RX_OFLOW 0x00000020
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#define SIS_IMR_TX_OK 0x00000040
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#define SIS_IMR_TX_DESC_OK 0x00000080
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#define SIS_IMR_TX_ERR 0x00000100
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#define SIS_IMR_TX_IDLE 0x00000200
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#define SIS_IMR_TX_UFLOW 0x00000400
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#define SIS_IMR_SOFTINTR 0x00000800
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#define SIS_IMR_HIBITS 0x00008000
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#define SIS_IMR_RX_FIFO_OFLOW 0x00010000
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#define SIS_IMR_TGT_ABRT 0x00100000
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#define SIS_IMR_BM_ABRT 0x00200000
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#define SIS_IMR_SYSERR 0x00400000
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#define SIS_IMR_PARITY_ERR 0x00800000
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#define SIS_IMR_RX_RESET_DONE 0x01000000
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#define SIS_IMR_TX_RESET_DONE 0x02000000
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#define SIS_IMR_TX_PAUSE_START 0x04000000
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#define SIS_IMR_TX_PAUSE_DONE 0x08000000
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#define SIS_IMR_WAKE_EVENT 0x10000000
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#define SIS_INTRS \
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(SIS_IMR_RX_OFLOW|SIS_IMR_TX_UFLOW|SIS_IMR_TX_OK|\
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SIS_IMR_TX_IDLE|SIS_IMR_RX_OK|SIS_IMR_RX_ERR|\
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SIS_IMR_SYSERR)
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#define SIS_IER_INTRENB 0x00000001
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#define SIS_PHYCTL_ACCESS 0x00000010
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#define SIS_PHYCTL_OP 0x00000020
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#define SIS_PHYCTL_REGADDR 0x000007C0
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#define SIS_PHYCTL_PHYADDR 0x0000F800
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#define SIS_PHYCTL_PHYDATA 0xFFFF0000
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#define SIS_PHYOP_READ 0x00000020
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#define SIS_PHYOP_WRITE 0x00000000
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#define SIS_TXCFG_DRAIN_THRESH 0x0000003F /* 32-byte units */
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#define SIS_TXCFG_FILL_THRESH 0x00003F00 /* 32-byte units */
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#define SIS_TXCFG_DMABURST 0x00700000
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#define SIS_TXCFG_AUTOPAD 0x10000000
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#define SIS_TXCFG_LOOPBK 0x20000000
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#define SIS_TXCFG_IGN_HBEAT 0x40000000
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#define SIS_TXCFG_IGN_CARR 0x80000000
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#define SIS_TXCFG_DRAIN(x) (((x) >> 5) & SIS_TXCFG_DRAIN_THRESH)
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#define SIS_TXCFG_FILL(x) ((((x) >> 5) << 8) & SIS_TXCFG_FILL_THRESH)
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#define SIS_TXDMA_512BYTES 0x00000000
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#define SIS_TXDMA_4BYTES 0x00100000
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#define SIS_TXDMA_8BYTES 0x00200000
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#define SIS_TXDMA_16BYTES 0x00300000
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#define SIS_TXDMA_32BYTES 0x00400000
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#define SIS_TXDMA_64BYTES 0x00500000
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#define SIS_TXDMA_128BYTES 0x00600000
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#define SIS_TXDMA_256BYTES 0x00700000
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#define SIS_TXCFG_100 \
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(SIS_TXDMA_64BYTES|SIS_TXCFG_AUTOPAD|\
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SIS_TXCFG_FILL(64)|SIS_TXCFG_DRAIN(1536))
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#define SIS_TXCFG_10 \
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(SIS_TXDMA_32BYTES|SIS_TXCFG_AUTOPAD|\
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SIS_TXCFG_FILL(64)|SIS_TXCFG_DRAIN(1536))
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#define SIS_RXCFG_DRAIN_THRESH 0x0000003E /* 8-byte units */
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#define SIS_RXCFG_DMABURST 0x00700000
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#define SIS_RXCFG_RX_JABBER 0x08000000
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#define SIS_RXCFG_RX_TXPKTS 0x10000000
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#define SIS_RXCFG_RX_RUNTS 0x40000000
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#define SIS_RXCFG_RX_GIANTS 0x80000000
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#define SIS_RXCFG_DRAIN(x) ((((x) >> 3) << 1) & SIS_RXCFG_DRAIN_THRESH)
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#define SIS_RXDMA_512BYTES 0x00000000
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#define SIS_RXDMA_4BYTES 0x00100000
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#define SIS_RXDMA_8BYTES 0x00200000
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#define SIS_RXDMA_16BYTES 0x00300000
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#define SIS_RXDMA_32BYTES 0x00400000
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#define SIS_RXDMA_64BYTES 0x00500000
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#define SIS_RXDMA_128BYTES 0x00600000
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#define SIS_RXDMA_256BYTES 0x00700000
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#define SIS_RXCFG \
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(SIS_RXCFG_DRAIN(64)|SIS_RXDMA_256BYTES)
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#define SIS_RXFILTCTL_ADDR 0x000F0000
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#define NS_RXFILTCTL_MCHASH 0x00200000
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#define NS_RXFILTCTL_ARP 0x00400000
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#define NS_RXFILTCTL_PERFECT 0x08000000
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#define SIS_RXFILTCTL_ALLPHYS 0x10000000
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#define SIS_RXFILTCTL_ALLMULTI 0x20000000
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#define SIS_RXFILTCTL_BROAD 0x40000000
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#define SIS_RXFILTCTL_ENABLE 0x80000000
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#define SIS_FILTADDR_PAR0 0x00000000
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#define SIS_FILTADDR_PAR1 0x00010000
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#define SIS_FILTADDR_PAR2 0x00020000
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#define SIS_FILTADDR_MAR0 0x00040000
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#define SIS_FILTADDR_MAR1 0x00050000
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#define SIS_FILTADDR_MAR2 0x00060000
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#define SIS_FILTADDR_MAR3 0x00070000
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#define SIS_FILTADDR_MAR4 0x00080000
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#define SIS_FILTADDR_MAR5 0x00090000
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#define SIS_FILTADDR_MAR6 0x000A0000
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#define SIS_FILTADDR_MAR7 0x000B0000
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#define NS_FILTADDR_PAR0 0x00000000
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#define NS_FILTADDR_PAR1 0x00000002
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#define NS_FILTADDR_PAR2 0x00000004
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#define NS_FILTADDR_FMEM_LO 0x00000200
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#define NS_FILTADDR_FMEM_HI 0x000003FE
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/*
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* DMA descriptor structures. The first part of the descriptor
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* is the hardware descriptor format, which is just three longwords.
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* After this, we include some additional structure members for
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* use by the driver. Note that for this structure will be a different
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* size on the alpha, but that's okay as long as it's a multiple of 4
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* bytes in size.
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*/
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struct sis_desc {
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/* SiS hardware descriptor section */
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u_int32_t sis_next;
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u_int32_t sis_cmdsts;
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#define sis_rxstat sis_cmdsts
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#define sis_txstat sis_cmdsts
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#define sis_ctl sis_cmdsts
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u_int32_t sis_ptr;
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/* Driver software section */
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struct mbuf *sis_mbuf;
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struct sis_desc *sis_nextdesc;
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};
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#define SIS_CMDSTS_BUFLEN 0x00000FFF
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#define SIS_CMDSTS_PKT_OK 0x08000000
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#define SIS_CMDSTS_CRC 0x10000000
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#define SIS_CMDSTS_INTR 0x20000000
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#define SIS_CMDSTS_MORE 0x40000000
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#define SIS_CMDSTS_OWN 0x80000000
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#define SIS_LASTDESC(x) (!((x)->sis_ctl & SIS_CMDSTS_MORE)))
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#define SIS_OWNDESC(x) ((x)->sis_ctl & SIS_CMDSTS_OWN)
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#define SIS_INC(x, y) (x) = (x + 1) % y
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#define SIS_RXBYTES(x) ((x)->sis_ctl & SIS_CMDSTS_BUFLEN)
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#define SIS_RXSTAT_COLL 0x00010000
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#define SIS_RXSTAT_LOOPBK 0x00020000
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#define SIS_RXSTAT_ALIGNERR 0x00040000
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#define SIS_RXSTAT_CRCERR 0x00080000
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#define SIS_RXSTAT_SYMBOLERR 0x00100000
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#define SIS_RXSTAT_RUNT 0x00200000
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#define SIS_RXSTAT_GIANT 0x00400000
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#define SIS_RXSTAT_DSTCLASS 0x01800000
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#define SIS_RXSTAT_OVERRUN 0x02000000
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#define SIS_RXSTAT_RX_ABORT 0x04000000
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#define SIS_DSTCLASS_REJECT 0x00000000
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#define SIS_DSTCLASS_UNICAST 0x00800000
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#define SIS_DSTCLASS_MULTICAST 0x01000000
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#define SIS_DSTCLASS_BROADCAST 0x02000000
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#define SIS_TXSTAT_COLLCNT 0x000F0000
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#define SIS_TXSTAT_EXCESSCOLLS 0x00100000
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#define SIS_TXSTAT_OUTOFWINCOLL 0x00200000
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#define SIS_TXSTAT_EXCESS_DEFER 0x00400000
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#define SIS_TXSTAT_DEFERED 0x00800000
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#define SIS_TXSTAT_CARR_LOST 0x01000000
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#define SIS_TXSTAT_UNDERRUN 0x02000000
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#define SIS_TXSTAT_TX_ABORT 0x04000000
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#define SIS_RX_LIST_CNT 64
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#define SIS_TX_LIST_CNT 128
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struct sis_list_data {
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struct sis_desc sis_rx_list[SIS_RX_LIST_CNT];
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struct sis_desc sis_tx_list[SIS_TX_LIST_CNT];
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};
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struct sis_ring_data {
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int sis_rx_prod;
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int sis_tx_prod;
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int sis_tx_cons;
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int sis_tx_cnt;
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};
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/*
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* SiS PCI vendor ID.
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*/
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#define SIS_VENDORID 0x1039
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/*
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* SiS PCI device IDs
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*/
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#define SIS_DEVICEID_900 0x0900
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#define SIS_DEVICEID_7016 0x7016
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/*
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* NatSemi vendor ID
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*/
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#define NS_VENDORID 0x100B
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/*
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* DP83815 device ID
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*/
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#define NS_DEVICEID_DP83815 0x0020
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struct sis_type {
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u_int16_t sis_vid;
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u_int16_t sis_did;
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char *sis_name;
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};
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#define SIS_TYPE_900 1
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#define SIS_TYPE_7016 2
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#define SIS_TYPE_83815 3
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struct sis_softc {
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struct arpcom arpcom; /* interface info */
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bus_space_handle_t sis_bhandle;
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bus_space_tag_t sis_btag;
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struct resource *sis_res;
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struct resource *sis_irq;
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void *sis_intrhand;
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device_t sis_miibus;
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u_int8_t sis_unit;
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u_int8_t sis_type;
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u_int8_t sis_link;
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struct sis_list_data *sis_ldata;
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struct sis_ring_data sis_cdata;
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struct callout_handle sis_stat_ch;
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};
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/*
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* register space access macros
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*/
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#define CSR_WRITE_4(sc, reg, val) \
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bus_space_write_4(sc->sis_btag, sc->sis_bhandle, reg, val)
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#define CSR_READ_4(sc, reg) \
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bus_space_read_4(sc->sis_btag, sc->sis_bhandle, reg)
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#define SIS_TIMEOUT 1000
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#define ETHER_ALIGN 2
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#define SIS_RXLEN 1536
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#define SIS_MIN_FRAMELEN 60
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/*
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* PCI low memory base and low I/O base register, and
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* other PCI registers.
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*/
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#define SIS_PCI_VENDOR_ID 0x00
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#define SIS_PCI_DEVICE_ID 0x02
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#define SIS_PCI_COMMAND 0x04
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#define SIS_PCI_STATUS 0x06
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#define SIS_PCI_REVID 0x08
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#define SIS_PCI_CLASSCODE 0x09
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#define SIS_PCI_CACHELEN 0x0C
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#define SIS_PCI_LATENCY_TIMER 0x0D
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#define SIS_PCI_HEADER_TYPE 0x0E
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#define SIS_PCI_LOIO 0x10
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#define SIS_PCI_LOMEM 0x14
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#define SIS_PCI_BIOSROM 0x30
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#define SIS_PCI_INTLINE 0x3C
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#define SIS_PCI_INTPIN 0x3D
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#define SIS_PCI_MINGNT 0x3E
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#define SIS_PCI_MINLAT 0x0F
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#define SIS_PCI_RESETOPT 0x48
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#define SIS_PCI_EEPROM_DATA 0x4C
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/* power management registers */
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#define SIS_PCI_CAPID 0x50 /* 8 bits */
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#define SIS_PCI_NEXTPTR 0x51 /* 8 bits */
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#define SIS_PCI_PWRMGMTCAP 0x52 /* 16 bits */
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#define SIS_PCI_PWRMGMTCTRL 0x54 /* 16 bits */
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#define SIS_PSTATE_MASK 0x0003
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#define SIS_PSTATE_D0 0x0000
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#define SIS_PSTATE_D1 0x0001
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#define SIS_PSTATE_D2 0x0002
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#define SIS_PSTATE_D3 0x0003
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#define SIS_PME_EN 0x0010
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#define SIS_PME_STATUS 0x8000
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#ifdef __alpha__
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#undef vtophys
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#define vtophys(va) alpha_XXX_dmamap((vm_offset_t)va)
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#endif
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