/*
* lanstreamer.h -- driver for the IBM Auto LANStreamer PCI Adapter
*
* Written By: Mike Sullivan, IBM Corporation
*
* Copyright (C) 1999 IBM Corporation
*
* Linux driver for IBM PCI tokenring cards based on the LanStreamer MPC
* chipset.
*
* This driver is based on the olympic driver for IBM PCI TokenRing cards (Pit/Pit-Phy/Olympic
* chipsets) written by:
* 1999 Peter De Schrijver All Rights Reserved
* 1999 Mike Phillips (phillim@amtrak.com)
*
* Base Driver Skeleton:
* Written 1993-94 by Donald Becker.
*
* Copyright 1993 United States Government as represented by the
* Director, National Security Agency.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* NO WARRANTY
* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
* solely responsible for determining the appropriateness of using and
* distributing the Program and assumes all risks associated with its
* exercise of rights under this Agreement, including but not limited to
* the risks and costs of program errors, damage to or loss of data,
* programs or equipment, and unavailability or interruption of operations.
*
* DISCLAIMER OF LIABILITY
* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), 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 OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*
* 12/10/99 - Alpha Release 0.1.0
* First release to the public
* 08/15/01 - Added ioctl() definitions and others - Kent Yoder <yoder1@us.ibm.com>
*
*/
#include <linux/version.h>
#if STREAMER_IOCTL && (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
#include <asm/ioctl.h>
#define IOCTL_PRINT_RX_BUFS SIOCDEVPRIVATE
#define IOCTL_PRINT_TX_BUFS SIOCDEVPRIVATE+1
#define IOCTL_RX_CMD SIOCDEVPRIVATE+2
#define IOCTL_TX_CMD SIOCDEVPRIVATE+3
#define IOCTL_PRINT_REGISTERS SIOCDEVPRIVATE+4
#define IOCTL_PRINT_BDAS SIOCDEVPRIVATE+5
#define IOCTL_SPIN_LOCK_TEST SIOCDEVPRIVATE+6
#define IOCTL_SISR_MASK SIOCDEVPRIVATE+7
#endif
/* MAX_INTR - the maximum number of times we can loop
* inside the interrupt function before returning
* control to the OS (maximum value is 256)
*/
#define MAX_INTR 5
#define CLS 0x0C
#define MLR 0x86
#define LTR 0x0D
#define BCTL 0x60
#define BCTL_SOFTRESET (1<<15)
#define BCTL_RX_FIFO_8 (1<<1)
#define BCTL_TX_FIFO_8 (1<<3)
#define GPR 0x4a
#define GPR_AUTOSENSE (1<<2)
#define GPR_16MBPS (1<<3)
#define LISR 0x10
#define LISR_SUM 0x12
#define LISR_RUM 0x14
#define LISR_LIE (1<<15)
#define LISR_SLIM (1<<13)
#define LISR_SLI (1<<12)
#define LISR_BPEI (1<<9)
#define LISR_BPE (1<<8)
#define LISR_SRB_CMD (1<<5)
#define LISR_ASB_REPLY (1<<4)
#define LISR_ASB_FREE_REQ (1<<2)
#define LISR_ARB_FREE (1<<1)
#define LISR_TRB_FRAME (1<<0)
#define SISR 0x16
#define SISR_SUM 0x18
#define SISR_RUM 0x1A
#define SISR_MASK 0x54
#define SISR_MASK_SUM 0x56
#define SISR_MASK_RUM 0x58
#define SISR_MI (1<<15)
#define SISR_SERR_ERR (1<<14)
#define SISR_TIMER (1<<11)
#define SISR_LAP_PAR_ERR (1<<10)
#define SISR_LAP_ACC_ERR (1<<9)
#define SISR_PAR_ERR (1<<8)
#define SISR_ADAPTER_CHECK (1<<6)
#define SISR_SRB_REPLY (1<<5)
#define SISR_ASB_FREE (1<<4)
#define SISR_ARB_CMD (1<<3)
#define SISR_TRB_REPLY (1<<2)
#define MISR_RUM 0x5A
#define MISR_MASK 0x5C
#define MISR_MASK_RUM 0x5E
#define MISR_TX2_IDLE (1<<15)
#define MISR_TX2_NO_STATUS (1<<14)
#define MISR_TX2_HALT (1<<13)
#define MISR_TX2_EOF (1<<12)
#define MISR_TX1_IDLE (1<<11)
#define MISR_TX1_NO_STATUS (1<<10)
#define MISR_TX1_HALT (1<<9)
#define MISR_TX1_EOF (1<<8)
#define MISR_RX_NOBUF (1<<5)
#define MISR_RX_EOB (1<<4)
#define MISR_RX_NO_STATUS (1<<2)
#define MISR_RX_HALT (1<<1)
#define MISR_RX_EOF (1<<0)
#define LAPA 0x62
#define LAPE 0x64
#define LAPD 0x66
#define LAPDINC 0x68
#define LAPWWO 0x6A
#define LAPWWC 0x6C
#define LAPCTL 0x6E
#define TIMER 0x4E4
#define BMCTL_SUM 0x50
#define BMCTL_RUM 0x52
#define BMCTL_TX1_DIS (1<<14)
#define BMCTL_TX2_DIS (1<<10)
#define BMCTL_RX_DIS (1<<6)
#define BMCTL_RX_ENABLED (1<<5)
#define RXLBDA 0x90
#define RXBDA 0x94
#define RXSTAT 0x98
#define RXDBA 0x9C
#define TX1LFDA 0xA0
#define TX1FDA 0xA4
#define TX1STAT 0xA8
#define TX1DBA 0xAC
#define TX2LFDA 0xB0
#define TX2FDA 0xB4
#define TX2STAT 0xB8
#define TX2DBA 0xBC
#define STREAMER_IO_SPACE 256
#define SRB_COMMAND_SIZE 50
#define STREAMER_MAX_ADAPTERS 8 /* 0x08 __MODULE_STRING can't hand 0xnn */
/* Defines for LAN STATUS CHANGE reports */
#define LSC_SIG_LOSS 0x8000
#define LSC_HARD_ERR 0x4000
#define LSC_SOFT_ERR 0x2000
#define LSC_TRAN_BCN 0x1000
#define LSC_LWF 0x0800
#define LSC_ARW 0x0400
#define LSC_FPE 0x0200
#define LSC_RR 0x0100
#define LSC_CO 0x0080
#define LSC_SS 0x0040
#define LSC_RING_REC 0x0020
#define LSC_SR_CO 0x0010
#define LSC_FDX_MODE 0x0004
/* Defines for OPEN ADAPTER command */
#define OPEN_ADAPTER_EXT_WRAP (1<<15)
#define OPEN_ADAPTER_DIS_HARDEE (1<<14)
#define OPEN_ADAPTER_DIS_SOFTERR (1<<13)
#define OPEN_ADAPTER_PASS_ADC_MAC (1<<12)
#define OPEN_ADAPTER_PASS_ATT_MAC (1<<11)
#define OPEN_ADAPTER_ENABLE_EC (1<<10)
#define OPEN_ADAPTER_CONTENDER (1<<8)
#define OPEN_ADAPTER_PASS_BEACON (1<<7)
#define OPEN_ADAPTER_ENABLE_FDX (1<<6)
#define OPEN_ADAPTER_ENABLE_RPL (1<<5)
#define OPEN_ADAPTER_INHIBIT_ETR (1<<4)
#define OPEN_ADAPTER_INTERNAL_WRAP (1<<3)
/* Defines for SRB Commands */
#define SRB_CLOSE_ADAPTER 0x04
#define SRB_CONFIGURE_BRIDGE 0x0c
#define SRB_CONFIGURE_HP_CHANNEL 0x13
#define SRB_MODIFY_BRIDGE_PARMS 0x15
#define SRB_MODIFY_OPEN_OPTIONS 0x01
#define SRB_MODIFY_RECEIVE_OPTIONS 0x17
#define SRB_NO_OPERATION 0x00
#define SRB_OPEN_ADAPTER 0x03
#define SRB_READ_LOG 0x08
#define SRB_READ_SR_COUNTERS 0x16
#define SRB_RESET_GROUP_ADDRESS 0x02
#define SRB_RESET_TARGET_SEGMETN 0x14
#define SRB_SAVE_CONFIGURATION 0x1b
#define SRB_SET_BRIDGE_PARMS 0x09
#define SRB_SET_FUNC_ADDRESS 0x07
#define SRB_SET_GROUP_ADDRESS 0x06
#define SRB_SET_TARGET_SEGMENT 0x05
/* Clear return code */
#define STREAMER_CLEAR_RET_CODE 0xfe
/* ARB Commands */
#define ARB_RECEIVE_DATA 0x81
#define ARB_LAN_CHANGE_STATUS 0x84
/* ASB Response commands */
#define ASB_RECEIVE_DATA 0x81
/* Streamer defaults for buffers */
#define STREAMER_RX_RING_SIZE 16 /* should be a power of 2 */
/* Setting the number of TX descriptors to 1 is a workaround for an
* undocumented hardware problem with the lanstreamer board. Setting
* this to something higher may slightly increase the throughput you
* can get from the card, but at the risk of locking up the box. -
* <yoder1@us.ibm.com>
*/
#define STREAMER_TX_RING_SIZE 1 /* should be a power of 2 */
#define PKT_BUF_SZ 4096 /* Default packet size */
/* Streamer data structures */
struct streamer_tx_desc {
__u32 forward;
__u32 status;
__u32 bufcnt_framelen;
__u32 buffer;
__u32 buflen;
__u32 rsvd1;
__u32 rsvd2;
__u32 rsvd3;
};
struct streamer_rx_desc {
__u32 forward;
__u32 status;
__u32 buffer;
__u32 framelen_buflen;
};
struct mac_receive_buffer {
__u16 next;
__u8 padding;
__u8 frame_status;
__u16 buffer_length;
__u8 frame_data;
};
struct streamer_private {
__u16 srb;
__u16 trb;
__u16 arb;
__u16 asb;
struct streamer_private *next;
struct pci_dev *pci_dev;
__u8 __iomem *streamer_mmio;
char *streamer_card_name;
spinlock_t streamer_lock;
volatile int srb_queued; /* True if an SRB is still posted */
wait_queue_head_t srb_wait;
volatile int asb_queued; /* True if an ASB is posted */
volatile int trb_queued; /* True if a TRB is posted */
wait_queue_head_t trb_wait;
struct streamer_rx_desc *streamer_rx_ring;
struct streamer_tx_desc *streamer_tx_ring;
struct sk_buff *tx_ring_skb[STREAMER_TX_RING_SIZE],
*rx_ring_skb[STREAMER_RX_RING_SIZE];
int tx_ring_free, tx_ring_last_status, rx_ring_last_received,
free_tx_ring_entries;
struct net_device_stats streamer_stats;
__u16 streamer_lan_status;
__u8 streamer_ring_speed;
__u16 pkt_buf_sz;
__u8 streamer_receive_options, streamer_copy_all_options,
streamer_message_level;
__u16 streamer_addr_table_addr, streamer_parms_addr;
__u16 mac_rx_buffer;
__u8 streamer_laa[6];
};
struct streamer_adapter_addr_table {
__u8 node_addr[6];
__u8 reserved[4];
__u8 func_addr[4];
};
struct streamer_parameters_table {
__u8 phys_addr[4];
__u8 up_node_addr[6];
__u8 up_phys_addr[4];
__u8 poll_addr[6];
__u16 reserved;
__u16 acc_priority;
__u16 auth_source_class;
__u16 att_code;
__u8 source_addr[6];
__u16 beacon_type;
__u16 major_vector;
__u16 lan_status;
__u16 soft_error_time;
__u16 reserved1;
__u16 local_ring;
__u16 mon_error;
__u16 beacon_transmit;
__u16 beacon_receive;
__u16 frame_correl;
__u8 beacon_naun[6];
__u32 reserved2;
__u8 beacon_phys[4];
};
