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linux/drivers/net/tokenring/smctr.c
David S. Miller babcda74e9 drivers/net: Kill now superfluous ->last_rx stores. 
The generic packet receive code takes care of setting
netdev->last_rx when necessary, for the sake of the
bonding ARP monitor.

Drivers need not do it any more.

Some cases had to be skipped over because the drivers
were making use of the ->last_rx value themselves.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-03 21:11:17 -08:00

5743 lines
187 KiB
C
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/*
* smctr.c: A network driver for the SMC Token Ring Adapters.
*
* Written by Jay Schulist <jschlst@samba.org>
*
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*
* This device driver works with the following SMC adapters:
* - SMC TokenCard Elite (8115T, chips 825/584)
* - SMC TokenCard Elite/A MCA (8115T/A, chips 825/594)
*
* Source(s):
* - SMC TokenCard SDK.
*
* Maintainer(s):
* JS Jay Schulist <jschlst@samba.org>
*
* Changes:
* 07102000 JS Fixed a timing problem in smctr_wait_cmd();
* Also added a bit more discriptive error msgs.
* 07122000 JS Fixed problem with detecting a card with
* module io/irq/mem specified.
*
* To do:
* 1. Multicast support.
*
* Initial 2.5 cleanup Alan Cox <alan@lxorguk.ukuu.org.uk> 2002/10/28
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/fcntl.h>
#include <linux/interrupt.h>
#include <linux/ptrace.h>
#include <linux/ioport.h>
#include <linux/in.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/time.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/mca-legacy.h>
#include <linux/delay.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/trdevice.h>
#include <linux/bitops.h>
#include <linux/firmware.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/dma.h>
#include <asm/irq.h>
#if BITS_PER_LONG == 64
#error FIXME: driver does not support 64-bit platforms
#endif
#include "smctr.h" /* Our Stuff */
static char version[] __initdata = KERN_INFO "smctr.c: v1.4 7/12/00 by jschlst@samba.org\n";
static const char cardname[] = "smctr";
#define SMCTR_IO_EXTENT 20
#ifdef CONFIG_MCA_LEGACY
static unsigned int smctr_posid = 0x6ec6;
#endif
static int ringspeed;
/* SMC Name of the Adapter. */
static char smctr_name[] = "SMC TokenCard";
static char *smctr_model = "Unknown";
/* Use 0 for production, 1 for verification, 2 for debug, and
* 3 for very verbose debug.
*/
#ifndef SMCTR_DEBUG
#define SMCTR_DEBUG 1
#endif
static unsigned int smctr_debug = SMCTR_DEBUG;
/* smctr.c prototypes and functions are arranged alphabeticly
* for clearity, maintainability and pure old fashion fun.
*/
/* A */
static int smctr_alloc_shared_memory(struct net_device *dev);
/* B */
static int smctr_bypass_state(struct net_device *dev);
/* C */
static int smctr_checksum_firmware(struct net_device *dev);
static int __init smctr_chk_isa(struct net_device *dev);
static int smctr_chg_rx_mask(struct net_device *dev);
static int smctr_clear_int(struct net_device *dev);
static int smctr_clear_trc_reset(int ioaddr);
static int smctr_close(struct net_device *dev);
/* D */
static int smctr_decode_firmware(struct net_device *dev,
const struct firmware *fw);
static int smctr_disable_16bit(struct net_device *dev);
static int smctr_disable_adapter_ctrl_store(struct net_device *dev);
static int smctr_disable_bic_int(struct net_device *dev);
/* E */
static int smctr_enable_16bit(struct net_device *dev);
static int smctr_enable_adapter_ctrl_store(struct net_device *dev);
static int smctr_enable_adapter_ram(struct net_device *dev);
static int smctr_enable_bic_int(struct net_device *dev);
/* G */
static int __init smctr_get_boardid(struct net_device *dev, int mca);
static int smctr_get_group_address(struct net_device *dev);
static int smctr_get_functional_address(struct net_device *dev);
static unsigned int smctr_get_num_rx_bdbs(struct net_device *dev);
static int smctr_get_physical_drop_number(struct net_device *dev);
static __u8 *smctr_get_rx_pointer(struct net_device *dev, short queue);
static int smctr_get_station_id(struct net_device *dev);
static struct net_device_stats *smctr_get_stats(struct net_device *dev);
static FCBlock *smctr_get_tx_fcb(struct net_device *dev, __u16 queue,
__u16 bytes_count);
static int smctr_get_upstream_neighbor_addr(struct net_device *dev);
/* H */
static int smctr_hardware_send_packet(struct net_device *dev,
struct net_local *tp);
/* I */
static int smctr_init_acbs(struct net_device *dev);
static int smctr_init_adapter(struct net_device *dev);
static int smctr_init_card_real(struct net_device *dev);
static int smctr_init_rx_bdbs(struct net_device *dev);
static int smctr_init_rx_fcbs(struct net_device *dev);
static int smctr_init_shared_memory(struct net_device *dev);
static int smctr_init_tx_bdbs(struct net_device *dev);
static int smctr_init_tx_fcbs(struct net_device *dev);
static int smctr_internal_self_test(struct net_device *dev);
static irqreturn_t smctr_interrupt(int irq, void *dev_id);
static int smctr_issue_enable_int_cmd(struct net_device *dev,
__u16 interrupt_enable_mask);
static int smctr_issue_int_ack(struct net_device *dev, __u16 iack_code,
__u16 ibits);
static int smctr_issue_init_timers_cmd(struct net_device *dev);
static int smctr_issue_init_txrx_cmd(struct net_device *dev);
static int smctr_issue_insert_cmd(struct net_device *dev);
static int smctr_issue_read_ring_status_cmd(struct net_device *dev);
static int smctr_issue_read_word_cmd(struct net_device *dev, __u16 aword_cnt);
static int smctr_issue_remove_cmd(struct net_device *dev);
static int smctr_issue_resume_acb_cmd(struct net_device *dev);
static int smctr_issue_resume_rx_bdb_cmd(struct net_device *dev, __u16 queue);
static int smctr_issue_resume_rx_fcb_cmd(struct net_device *dev, __u16 queue);
static int smctr_issue_resume_tx_fcb_cmd(struct net_device *dev, __u16 queue);
static int smctr_issue_test_internal_rom_cmd(struct net_device *dev);
static int smctr_issue_test_hic_cmd(struct net_device *dev);
static int smctr_issue_test_mac_reg_cmd(struct net_device *dev);
static int smctr_issue_trc_loopback_cmd(struct net_device *dev);
static int smctr_issue_tri_loopback_cmd(struct net_device *dev);
static int smctr_issue_write_byte_cmd(struct net_device *dev,
short aword_cnt, void *byte);
static int smctr_issue_write_word_cmd(struct net_device *dev,
short aword_cnt, void *word);
/* J */
static int smctr_join_complete_state(struct net_device *dev);
/* L */
static int smctr_link_tx_fcbs_to_bdbs(struct net_device *dev);
static int smctr_load_firmware(struct net_device *dev);
static int smctr_load_node_addr(struct net_device *dev);
static int smctr_lobe_media_test(struct net_device *dev);
static int smctr_lobe_media_test_cmd(struct net_device *dev);
static int smctr_lobe_media_test_state(struct net_device *dev);
/* M */
static int smctr_make_8025_hdr(struct net_device *dev,
MAC_HEADER *rmf, MAC_HEADER *tmf, __u16 ac_fc);
static int smctr_make_access_pri(struct net_device *dev,
MAC_SUB_VECTOR *tsv);
static int smctr_make_addr_mod(struct net_device *dev, MAC_SUB_VECTOR *tsv);
static int smctr_make_auth_funct_class(struct net_device *dev,
MAC_SUB_VECTOR *tsv);
static int smctr_make_corr(struct net_device *dev,
MAC_SUB_VECTOR *tsv, __u16 correlator);
static int smctr_make_funct_addr(struct net_device *dev,
MAC_SUB_VECTOR *tsv);
static int smctr_make_group_addr(struct net_device *dev,
MAC_SUB_VECTOR *tsv);
static int smctr_make_phy_drop_num(struct net_device *dev,
MAC_SUB_VECTOR *tsv);
static int smctr_make_product_id(struct net_device *dev, MAC_SUB_VECTOR *tsv);
static int smctr_make_station_id(struct net_device *dev, MAC_SUB_VECTOR *tsv);
static int smctr_make_ring_station_status(struct net_device *dev,
MAC_SUB_VECTOR *tsv);
static int smctr_make_ring_station_version(struct net_device *dev,
MAC_SUB_VECTOR *tsv);
static int smctr_make_tx_status_code(struct net_device *dev,
MAC_SUB_VECTOR *tsv, __u16 tx_fstatus);
static int smctr_make_upstream_neighbor_addr(struct net_device *dev,
MAC_SUB_VECTOR *tsv);
static int smctr_make_wrap_data(struct net_device *dev,
MAC_SUB_VECTOR *tsv);
/* O */
static int smctr_open(struct net_device *dev);
static int smctr_open_tr(struct net_device *dev);
/* P */
struct net_device *smctr_probe(int unit);
static int __init smctr_probe1(struct net_device *dev, int ioaddr);
static int smctr_process_rx_packet(MAC_HEADER *rmf, __u16 size,
struct net_device *dev, __u16 rx_status);
/* R */
static int smctr_ram_memory_test(struct net_device *dev);
static int smctr_rcv_chg_param(struct net_device *dev, MAC_HEADER *rmf,
__u16 *correlator);
static int smctr_rcv_init(struct net_device *dev, MAC_HEADER *rmf,
__u16 *correlator);
static int smctr_rcv_tx_forward(struct net_device *dev, MAC_HEADER *rmf);
static int smctr_rcv_rq_addr_state_attch(struct net_device *dev,
MAC_HEADER *rmf, __u16 *correlator);
static int smctr_rcv_unknown(struct net_device *dev, MAC_HEADER *rmf,
__u16 *correlator);
static int smctr_reset_adapter(struct net_device *dev);
static int smctr_restart_tx_chain(struct net_device *dev, short queue);
static int smctr_ring_status_chg(struct net_device *dev);
static int smctr_rx_frame(struct net_device *dev);
/* S */
static int smctr_send_dat(struct net_device *dev);
static int smctr_send_packet(struct sk_buff *skb, struct net_device *dev);
static int smctr_send_lobe_media_test(struct net_device *dev);
static int smctr_send_rpt_addr(struct net_device *dev, MAC_HEADER *rmf,
__u16 correlator);
static int smctr_send_rpt_attch(struct net_device *dev, MAC_HEADER *rmf,
__u16 correlator);
static int smctr_send_rpt_state(struct net_device *dev, MAC_HEADER *rmf,
__u16 correlator);
static int smctr_send_rpt_tx_forward(struct net_device *dev,
MAC_HEADER *rmf, __u16 tx_fstatus);
static int smctr_send_rsp(struct net_device *dev, MAC_HEADER *rmf,
__u16 rcode, __u16 correlator);
static int smctr_send_rq_init(struct net_device *dev);
static int smctr_send_tx_forward(struct net_device *dev, MAC_HEADER *rmf,
__u16 *tx_fstatus);
static int smctr_set_auth_access_pri(struct net_device *dev,
MAC_SUB_VECTOR *rsv);
static int smctr_set_auth_funct_class(struct net_device *dev,
MAC_SUB_VECTOR *rsv);
static int smctr_set_corr(struct net_device *dev, MAC_SUB_VECTOR *rsv,
__u16 *correlator);
static int smctr_set_error_timer_value(struct net_device *dev,
MAC_SUB_VECTOR *rsv);
static int smctr_set_frame_forward(struct net_device *dev,
MAC_SUB_VECTOR *rsv, __u8 dc_sc);
static int smctr_set_local_ring_num(struct net_device *dev,
MAC_SUB_VECTOR *rsv);
static unsigned short smctr_set_ctrl_attention(struct net_device *dev);
static void smctr_set_multicast_list(struct net_device *dev);
static int smctr_set_page(struct net_device *dev, __u8 *buf);
static int smctr_set_phy_drop(struct net_device *dev,
MAC_SUB_VECTOR *rsv);
static int smctr_set_ring_speed(struct net_device *dev);
static int smctr_set_rx_look_ahead(struct net_device *dev);
static int smctr_set_trc_reset(int ioaddr);
static int smctr_setup_single_cmd(struct net_device *dev,
__u16 command, __u16 subcommand);
static int smctr_setup_single_cmd_w_data(struct net_device *dev,
__u16 command, __u16 subcommand);
static char *smctr_malloc(struct net_device *dev, __u16 size);
static int smctr_status_chg(struct net_device *dev);
/* T */
static void smctr_timeout(struct net_device *dev);
static int smctr_trc_send_packet(struct net_device *dev, FCBlock *fcb,
__u16 queue);
static __u16 smctr_tx_complete(struct net_device *dev, __u16 queue);
static unsigned short smctr_tx_move_frame(struct net_device *dev,
struct sk_buff *skb, __u8 *pbuff, unsigned int bytes);
/* U */
static int smctr_update_err_stats(struct net_device *dev);
static int smctr_update_rx_chain(struct net_device *dev, __u16 queue);
static int smctr_update_tx_chain(struct net_device *dev, FCBlock *fcb,
__u16 queue);
/* W */
static int smctr_wait_cmd(struct net_device *dev);
static int smctr_wait_while_cbusy(struct net_device *dev);
#define TO_256_BYTE_BOUNDRY(X) (((X + 0xff) & 0xff00) - X)
#define TO_PARAGRAPH_BOUNDRY(X) (((X + 0x0f) & 0xfff0) - X)
#define PARAGRAPH_BOUNDRY(X) smctr_malloc(dev, TO_PARAGRAPH_BOUNDRY(X))
/* Allocate Adapter Shared Memory.
* IMPORTANT NOTE: Any changes to this function MUST be mirrored in the
* function "get_num_rx_bdbs" below!!!
*
* Order of memory allocation:
*
* 0. Initial System Configuration Block Pointer
* 1. System Configuration Block
* 2. System Control Block
* 3. Action Command Block
* 4. Interrupt Status Block
*
* 5. MAC TX FCB'S
* 6. NON-MAC TX FCB'S
* 7. MAC TX BDB'S
* 8. NON-MAC TX BDB'S
* 9. MAC RX FCB'S
* 10. NON-MAC RX FCB'S
* 11. MAC RX BDB'S
* 12. NON-MAC RX BDB'S
* 13. MAC TX Data Buffer( 1, 256 byte buffer)
* 14. MAC RX Data Buffer( 1, 256 byte buffer)
*
* 15. NON-MAC TX Data Buffer
* 16. NON-MAC RX Data Buffer
*/
static int smctr_alloc_shared_memory(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_alloc_shared_memory\n", dev->name);
/* Allocate initial System Control Block pointer.
* This pointer is located in the last page, last offset - 4.
*/
tp->iscpb_ptr = (ISCPBlock *)(tp->ram_access + ((__u32)64 * 0x400)
- (long)ISCP_BLOCK_SIZE);
/* Allocate System Control Blocks. */
tp->scgb_ptr = (SCGBlock *)smctr_malloc(dev, sizeof(SCGBlock));
PARAGRAPH_BOUNDRY(tp->sh_mem_used);
tp->sclb_ptr = (SCLBlock *)smctr_malloc(dev, sizeof(SCLBlock));
PARAGRAPH_BOUNDRY(tp->sh_mem_used);
tp->acb_head = (ACBlock *)smctr_malloc(dev,
sizeof(ACBlock)*tp->num_acbs);
PARAGRAPH_BOUNDRY(tp->sh_mem_used);
tp->isb_ptr = (ISBlock *)smctr_malloc(dev, sizeof(ISBlock));
PARAGRAPH_BOUNDRY(tp->sh_mem_used);
tp->misc_command_data = (__u16 *)smctr_malloc(dev, MISC_DATA_SIZE);
PARAGRAPH_BOUNDRY(tp->sh_mem_used);
/* Allocate transmit FCBs. */
tp->tx_fcb_head[MAC_QUEUE] = (FCBlock *)smctr_malloc(dev,
sizeof(FCBlock) * tp->num_tx_fcbs[MAC_QUEUE]);
tp->tx_fcb_head[NON_MAC_QUEUE] = (FCBlock *)smctr_malloc(dev,
sizeof(FCBlock) * tp->num_tx_fcbs[NON_MAC_QUEUE]);
tp->tx_fcb_head[BUG_QUEUE] = (FCBlock *)smctr_malloc(dev,
sizeof(FCBlock) * tp->num_tx_fcbs[BUG_QUEUE]);
/* Allocate transmit BDBs. */
tp->tx_bdb_head[MAC_QUEUE] = (BDBlock *)smctr_malloc(dev,
sizeof(BDBlock) * tp->num_tx_bdbs[MAC_QUEUE]);
tp->tx_bdb_head[NON_MAC_QUEUE] = (BDBlock *)smctr_malloc(dev,
sizeof(BDBlock) * tp->num_tx_bdbs[NON_MAC_QUEUE]);
tp->tx_bdb_head[BUG_QUEUE] = (BDBlock *)smctr_malloc(dev,
sizeof(BDBlock) * tp->num_tx_bdbs[BUG_QUEUE]);
/* Allocate receive FCBs. */
tp->rx_fcb_head[MAC_QUEUE] = (FCBlock *)smctr_malloc(dev,
sizeof(FCBlock) * tp->num_rx_fcbs[MAC_QUEUE]);
tp->rx_fcb_head[NON_MAC_QUEUE] = (FCBlock *)smctr_malloc(dev,
sizeof(FCBlock) * tp->num_rx_fcbs[NON_MAC_QUEUE]);
/* Allocate receive BDBs. */
tp->rx_bdb_head[MAC_QUEUE] = (BDBlock *)smctr_malloc(dev,
sizeof(BDBlock) * tp->num_rx_bdbs[MAC_QUEUE]);
tp->rx_bdb_end[MAC_QUEUE] = (BDBlock *)smctr_malloc(dev, 0);
tp->rx_bdb_head[NON_MAC_QUEUE] = (BDBlock *)smctr_malloc(dev,
sizeof(BDBlock) * tp->num_rx_bdbs[NON_MAC_QUEUE]);
tp->rx_bdb_end[NON_MAC_QUEUE] = (BDBlock *)smctr_malloc(dev, 0);
/* Allocate MAC transmit buffers.
* MAC Tx Buffers doen't have to be on an ODD Boundry.
*/
tp->tx_buff_head[MAC_QUEUE]
= (__u16 *)smctr_malloc(dev, tp->tx_buff_size[MAC_QUEUE]);
tp->tx_buff_curr[MAC_QUEUE] = tp->tx_buff_head[MAC_QUEUE];
tp->tx_buff_end [MAC_QUEUE] = (__u16 *)smctr_malloc(dev, 0);
/* Allocate BUG transmit buffers. */
tp->tx_buff_head[BUG_QUEUE]
= (__u16 *)smctr_malloc(dev, tp->tx_buff_size[BUG_QUEUE]);
tp->tx_buff_curr[BUG_QUEUE] = tp->tx_buff_head[BUG_QUEUE];
tp->tx_buff_end[BUG_QUEUE] = (__u16 *)smctr_malloc(dev, 0);
/* Allocate MAC receive data buffers.
* MAC Rx buffer doesn't have to be on a 256 byte boundary.
*/
tp->rx_buff_head[MAC_QUEUE] = (__u16 *)smctr_malloc(dev,
RX_DATA_BUFFER_SIZE * tp->num_rx_bdbs[MAC_QUEUE]);
tp->rx_buff_end[MAC_QUEUE] = (__u16 *)smctr_malloc(dev, 0);
/* Allocate Non-MAC transmit buffers.
* ?? For maximum Netware performance, put Tx Buffers on
* ODD Boundry and then restore malloc to Even Boundrys.
*/
smctr_malloc(dev, 1L);
tp->tx_buff_head[NON_MAC_QUEUE]
= (__u16 *)smctr_malloc(dev, tp->tx_buff_size[NON_MAC_QUEUE]);
tp->tx_buff_curr[NON_MAC_QUEUE] = tp->tx_buff_head[NON_MAC_QUEUE];
tp->tx_buff_end [NON_MAC_QUEUE] = (__u16 *)smctr_malloc(dev, 0);
smctr_malloc(dev, 1L);
/* Allocate Non-MAC receive data buffers.
* To guarantee a minimum of 256 contigous memory to
* UM_Receive_Packet's lookahead pointer, before a page
* change or ring end is encountered, place each rx buffer on
* a 256 byte boundary.
*/
smctr_malloc(dev, TO_256_BYTE_BOUNDRY(tp->sh_mem_used));
tp->rx_buff_head[NON_MAC_QUEUE] = (__u16 *)smctr_malloc(dev,
RX_DATA_BUFFER_SIZE * tp->num_rx_bdbs[NON_MAC_QUEUE]);
tp->rx_buff_end[NON_MAC_QUEUE] = (__u16 *)smctr_malloc(dev, 0);
return (0);
}
/* Enter Bypass state. */
static int smctr_bypass_state(struct net_device *dev)
{
int err;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_bypass_state\n", dev->name);
err = smctr_setup_single_cmd(dev, ACB_CMD_CHANGE_JOIN_STATE, JS_BYPASS_STATE);
return (err);
}
static int smctr_checksum_firmware(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
__u16 i, checksum = 0;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_checksum_firmware\n", dev->name);
smctr_enable_adapter_ctrl_store(dev);
for(i = 0; i < CS_RAM_SIZE; i += 2)
checksum += *((__u16 *)(tp->ram_access + i));
tp->microcode_version = *(__u16 *)(tp->ram_access
+ CS_RAM_VERSION_OFFSET);
tp->microcode_version >>= 8;
smctr_disable_adapter_ctrl_store(dev);
if(checksum)
return (checksum);
return (0);
}
static int __init smctr_chk_mca(struct net_device *dev)
{
#ifdef CONFIG_MCA_LEGACY
struct net_local *tp = netdev_priv(dev);
int current_slot;
__u8 r1, r2, r3, r4, r5;
current_slot = mca_find_unused_adapter(smctr_posid, 0);
if(current_slot == MCA_NOTFOUND)
return (-ENODEV);
mca_set_adapter_name(current_slot, smctr_name);
mca_mark_as_used(current_slot);
tp->slot_num = current_slot;
r1 = mca_read_stored_pos(tp->slot_num, 2);
r2 = mca_read_stored_pos(tp->slot_num, 3);
if(tp->slot_num)
outb(CNFG_POS_CONTROL_REG, (__u8)((tp->slot_num - 1) | CNFG_SLOT_ENABLE_BIT));
else
outb(CNFG_POS_CONTROL_REG, (__u8)((tp->slot_num) | CNFG_SLOT_ENABLE_BIT));
r1 = inb(CNFG_POS_REG1);
r2 = inb(CNFG_POS_REG0);
tp->bic_type = BIC_594_CHIP;
/* IO */
r2 = mca_read_stored_pos(tp->slot_num, 2);
r2 &= 0xF0;
dev->base_addr = ((__u16)r2 << 8) + (__u16)0x800;
request_region(dev->base_addr, SMCTR_IO_EXTENT, smctr_name);
/* IRQ */
r5 = mca_read_stored_pos(tp->slot_num, 5);
r5 &= 0xC;
switch(r5)
{
case 0:
dev->irq = 3;
break;
case 0x4:
dev->irq = 4;
break;
case 0x8:
dev->irq = 10;
break;
default:
dev->irq = 15;
break;
}
if (request_irq(dev->irq, smctr_interrupt, IRQF_SHARED, smctr_name, dev)) {
release_region(dev->base_addr, SMCTR_IO_EXTENT);
return -ENODEV;
}
/* Get RAM base */
r3 = mca_read_stored_pos(tp->slot_num, 3);
tp->ram_base = ((__u32)(r3 & 0x7) << 13) + 0x0C0000;
if (r3 & 0x8)
tp->ram_base += 0x010000;
if (r3 & 0x80)
tp->ram_base += 0xF00000;
/* Get Ram Size */
r3 &= 0x30;
r3 >>= 4;
tp->ram_usable = (__u16)CNFG_SIZE_8KB << r3;
tp->ram_size = (__u16)CNFG_SIZE_64KB;
tp->board_id |= TOKEN_MEDIA;
r4 = mca_read_stored_pos(tp->slot_num, 4);
tp->rom_base = ((__u32)(r4 & 0x7) << 13) + 0x0C0000;
if (r4 & 0x8)
tp->rom_base += 0x010000;
/* Get ROM size. */
r4 >>= 4;
switch (r4) {
case 0:
tp->rom_size = CNFG_SIZE_8KB;
break;
case 1:
tp->rom_size = CNFG_SIZE_16KB;
break;
case 2:
tp->rom_size = CNFG_SIZE_32KB;
break;
default:
tp->rom_size = ROM_DISABLE;
}
/* Get Media Type. */
r5 = mca_read_stored_pos(tp->slot_num, 5);
r5 &= CNFG_MEDIA_TYPE_MASK;
switch(r5)
{
case (0):
tp->media_type = MEDIA_STP_4;
break;
case (1):
tp->media_type = MEDIA_STP_16;
break;
case (3):
tp->media_type = MEDIA_UTP_16;
break;
default:
tp->media_type = MEDIA_UTP_4;
break;
}
tp->media_menu = 14;
r2 = mca_read_stored_pos(tp->slot_num, 2);
if(!(r2 & 0x02))
tp->mode_bits |= EARLY_TOKEN_REL;
/* Disable slot */
outb(CNFG_POS_CONTROL_REG, 0);
tp->board_id = smctr_get_boardid(dev, 1);
switch(tp->board_id & 0xffff)
{
case WD8115TA:
smctr_model = "8115T/A";
break;
case WD8115T:
if(tp->extra_info & CHIP_REV_MASK)
smctr_model = "8115T rev XE";
else
smctr_model = "8115T rev XD";
break;
default:
smctr_model = "Unknown";
break;
}
return (0);
#else
return (-1);
#endif /* CONFIG_MCA_LEGACY */
}
static int smctr_chg_rx_mask(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
int err = 0;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_chg_rx_mask\n", dev->name);
smctr_enable_16bit(dev);
smctr_set_page(dev, (__u8 *)tp->ram_access);
if(tp->mode_bits & LOOPING_MODE_MASK)
tp->config_word0 |= RX_OWN_BIT;
else
tp->config_word0 &= ~RX_OWN_BIT;
if(tp->receive_mask & PROMISCUOUS_MODE)
tp->config_word0 |= PROMISCUOUS_BIT;
else
tp->config_word0 &= ~PROMISCUOUS_BIT;
if(tp->receive_mask & ACCEPT_ERR_PACKETS)
tp->config_word0 |= SAVBAD_BIT;
else
tp->config_word0 &= ~SAVBAD_BIT;
if(tp->receive_mask & ACCEPT_ATT_MAC_FRAMES)
tp->config_word0 |= RXATMAC;
else
tp->config_word0 &= ~RXATMAC;
if(tp->receive_mask & ACCEPT_MULTI_PROM)
tp->config_word1 |= MULTICAST_ADDRESS_BIT;
else
tp->config_word1 &= ~MULTICAST_ADDRESS_BIT;
if(tp->receive_mask & ACCEPT_SOURCE_ROUTING_SPANNING)
tp->config_word1 |= SOURCE_ROUTING_SPANNING_BITS;
else
{
if(tp->receive_mask & ACCEPT_SOURCE_ROUTING)
tp->config_word1 |= SOURCE_ROUTING_EXPLORER_BIT;
else
tp->config_word1 &= ~SOURCE_ROUTING_SPANNING_BITS;
}
if((err = smctr_issue_write_word_cmd(dev, RW_CONFIG_REGISTER_0,
&tp->config_word0)))
{
return (err);
}
if((err = smctr_issue_write_word_cmd(dev, RW_CONFIG_REGISTER_1,
&tp->config_word1)))
{
return (err);
}
smctr_disable_16bit(dev);
return (0);
}
static int smctr_clear_int(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
outb((tp->trc_mask | CSR_CLRTINT), dev->base_addr + CSR);
return (0);
}
static int smctr_clear_trc_reset(int ioaddr)
{
__u8 r;
r = inb(ioaddr + MSR);
outb(~MSR_RST & r, ioaddr + MSR);
return (0);
}
/*
* The inverse routine to smctr_open().
*/
static int smctr_close(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
struct sk_buff *skb;
int err;
netif_stop_queue(dev);
tp->cleanup = 1;
/* Check to see if adapter is already in a closed state. */
if(tp->status != OPEN)
return (0);
smctr_enable_16bit(dev);
smctr_set_page(dev, (__u8 *)tp->ram_access);
if((err = smctr_issue_remove_cmd(dev)))
{
smctr_disable_16bit(dev);
return (err);
}
for(;;)
{
skb = skb_dequeue(&tp->SendSkbQueue);
if(skb == NULL)
break;
tp->QueueSkb++;
dev_kfree_skb(skb);
}
return (0);
}
static int smctr_decode_firmware(struct net_device *dev,
const struct firmware *fw)
{
struct net_local *tp = netdev_priv(dev);
short bit = 0x80, shift = 12;
DECODE_TREE_NODE *tree;
short branch, tsize;
__u16 buff = 0;
long weight;
__u8 *ucode;
__u16 *mem;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_decode_firmware\n", dev->name);
weight = *(long *)(fw->data + WEIGHT_OFFSET);
tsize = *(__u8 *)(fw->data + TREE_SIZE_OFFSET);
tree = (DECODE_TREE_NODE *)(fw->data + TREE_OFFSET);
ucode = (__u8 *)(fw->data + TREE_OFFSET
+ (tsize * sizeof(DECODE_TREE_NODE)));
mem = (__u16 *)(tp->ram_access);
while(weight)
{
branch = ROOT;
while((tree + branch)->tag != LEAF && weight)
{
branch = *ucode & bit ? (tree + branch)->llink
: (tree + branch)->rlink;
bit >>= 1;
weight--;
if(bit == 0)
{
bit = 0x80;
ucode++;
}
}
buff |= (tree + branch)->info << shift;
shift -= 4;
if(shift < 0)
{
*(mem++) = SWAP_BYTES(buff);
buff = 0;
shift = 12;
}
}
/* The following assumes the Control Store Memory has
* been initialized to zero. If the last partial word
* is zero, it will not be written.
*/
if(buff)
*(mem++) = SWAP_BYTES(buff);
return (0);
}
static int smctr_disable_16bit(struct net_device *dev)
{
return (0);
}
/*
* On Exit, Adapter is:
* 1. TRC is in a reset state and un-initialized.
* 2. Adapter memory is enabled.
* 3. Control Store memory is out of context (-WCSS is 1).
*/
static int smctr_disable_adapter_ctrl_store(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
int ioaddr = dev->base_addr;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_disable_adapter_ctrl_store\n", dev->name);
tp->trc_mask |= CSR_WCSS;
outb(tp->trc_mask, ioaddr + CSR);
return (0);
}
static int smctr_disable_bic_int(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
int ioaddr = dev->base_addr;
tp->trc_mask = CSR_MSK_ALL | CSR_MSKCBUSY
| CSR_MSKTINT | CSR_WCSS;
outb(tp->trc_mask, ioaddr + CSR);
return (0);
}
static int smctr_enable_16bit(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
__u8 r;
if(tp->adapter_bus == BUS_ISA16_TYPE)
{
r = inb(dev->base_addr + LAAR);
outb((r | LAAR_MEM16ENB), dev->base_addr + LAAR);
}
return (0);
}
/*
* To enable the adapter control store memory:
* 1. Adapter must be in a RESET state.
* 2. Adapter memory must be enabled.
* 3. Control Store Memory is in context (-WCSS is 0).
*/
static int smctr_enable_adapter_ctrl_store(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
int ioaddr = dev->base_addr;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_enable_adapter_ctrl_store\n", dev->name);
smctr_set_trc_reset(ioaddr);
smctr_enable_adapter_ram(dev);
tp->trc_mask &= ~CSR_WCSS;
outb(tp->trc_mask, ioaddr + CSR);
return (0);
}
static int smctr_enable_adapter_ram(struct net_device *dev)
{
int ioaddr = dev->base_addr;
__u8 r;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_enable_adapter_ram\n", dev->name);
r = inb(ioaddr + MSR);
outb(MSR_MEMB | r, ioaddr + MSR);
return (0);
}
static int smctr_enable_bic_int(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
int ioaddr = dev->base_addr;
__u8 r;
switch(tp->bic_type)
{
case (BIC_584_CHIP):
tp->trc_mask = CSR_MSKCBUSY | CSR_WCSS;
outb(tp->trc_mask, ioaddr + CSR);
r = inb(ioaddr + IRR);
outb(r | IRR_IEN, ioaddr + IRR);
break;
case (BIC_594_CHIP):
tp->trc_mask = CSR_MSKCBUSY | CSR_WCSS;
outb(tp->trc_mask, ioaddr + CSR);
r = inb(ioaddr + IMCCR);
outb(r | IMCCR_EIL, ioaddr + IMCCR);
break;
}
return (0);
}
static int __init smctr_chk_isa(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
int ioaddr = dev->base_addr;
__u8 r1, r2, b, chksum = 0;
__u16 r;
int i;
int err = -ENODEV;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_chk_isa %#4x\n", dev->name, ioaddr);
if((ioaddr & 0x1F) != 0)
goto out;
/* Grab the region so that no one else tries to probe our ioports. */
if (!request_region(ioaddr, SMCTR_IO_EXTENT, smctr_name)) {
err = -EBUSY;
goto out;
}
/* Checksum SMC node address */
for(i = 0; i < 8; i++)
{
b = inb(ioaddr + LAR0 + i);
chksum += b;
}
if (chksum != NODE_ADDR_CKSUM)
goto out2;
b = inb(ioaddr + BDID);
if(b != BRD_ID_8115T)
{
printk(KERN_ERR "%s: The adapter found is not supported\n", dev->name);
goto out2;
}
/* Check for 8115T Board ID */
r2 = 0;
for(r = 0; r < 8; r++)
{
r1 = inb(ioaddr + 0x8 + r);
r2 += r1;
}
/* value of RegF adds up the sum to 0xFF */
if((r2 != 0xFF) && (r2 != 0xEE))
goto out2;
/* Get adapter ID */
tp->board_id = smctr_get_boardid(dev, 0);
switch(tp->board_id & 0xffff)
{
case WD8115TA:
smctr_model = "8115T/A";
break;
case WD8115T:
if(tp->extra_info & CHIP_REV_MASK)
smctr_model = "8115T rev XE";
else
smctr_model = "8115T rev XD";
break;
default:
smctr_model = "Unknown";
break;
}
/* Store BIC type. */
tp->bic_type = BIC_584_CHIP;
tp->nic_type = NIC_825_CHIP;
/* Copy Ram Size */
tp->ram_usable = CNFG_SIZE_16KB;
tp->ram_size = CNFG_SIZE_64KB;
/* Get 58x Ram Base */
r1 = inb(ioaddr);
r1 &= 0x3F;
r2 = inb(ioaddr + CNFG_LAAR_584);
r2 &= CNFG_LAAR_MASK;
r2 <<= 3;
r2 |= ((r1 & 0x38) >> 3);
tp->ram_base = ((__u32)r2 << 16) + (((__u32)(r1 & 0x7)) << 13);
/* Get 584 Irq */
r1 = 0;
r1 = inb(ioaddr + CNFG_ICR_583);
r1 &= CNFG_ICR_IR2_584;
r2 = inb(ioaddr + CNFG_IRR_583);
r2 &= CNFG_IRR_IRQS; /* 0x60 */
r2 >>= 5;
switch(r2)
{
case 0:
if(r1 == 0)
dev->irq = 2;
else
dev->irq = 10;
break;
case 1:
if(r1 == 0)
dev->irq = 3;
else
dev->irq = 11;
break;
case 2:
if(r1 == 0)
{
if(tp->extra_info & ALTERNATE_IRQ_BIT)
dev->irq = 5;
else
dev->irq = 4;
}
else
dev->irq = 15;
break;
case 3:
if(r1 == 0)
dev->irq = 7;
else
dev->irq = 4;
break;
default:
printk(KERN_ERR "%s: No IRQ found aborting\n", dev->name);
goto out2;
}
if (request_irq(dev->irq, smctr_interrupt, IRQF_SHARED, smctr_name, dev))
goto out2;
/* Get 58x Rom Base */
r1 = inb(ioaddr + CNFG_BIO_583);
r1 &= 0x3E;
r1 |= 0x40;
tp->rom_base = (__u32)r1 << 13;
/* Get 58x Rom Size */
r1 = inb(ioaddr + CNFG_BIO_583);
r1 &= 0xC0;
if(r1 == 0)
tp->rom_size = ROM_DISABLE;
else
{
r1 >>= 6;
tp->rom_size = (__u16)CNFG_SIZE_8KB << r1;
}
/* Get 58x Boot Status */
r1 = inb(ioaddr + CNFG_GP2);
tp->mode_bits &= (~BOOT_STATUS_MASK);
if(r1 & CNFG_GP2_BOOT_NIBBLE)
tp->mode_bits |= BOOT_TYPE_1;
/* Get 58x Zero Wait State */
tp->mode_bits &= (~ZERO_WAIT_STATE_MASK);
r1 = inb(ioaddr + CNFG_IRR_583);
if(r1 & CNFG_IRR_ZWS)
tp->mode_bits |= ZERO_WAIT_STATE_8_BIT;
if(tp->board_id & BOARD_16BIT)
{
r1 = inb(ioaddr + CNFG_LAAR_584);
if(r1 & CNFG_LAAR_ZWS)
tp->mode_bits |= ZERO_WAIT_STATE_16_BIT;
}
/* Get 584 Media Menu */
tp->media_menu = 14;
r1 = inb(ioaddr + CNFG_IRR_583);
tp->mode_bits &= 0xf8ff; /* (~CNFG_INTERFACE_TYPE_MASK) */
if((tp->board_id & TOKEN_MEDIA) == TOKEN_MEDIA)
{
/* Get Advanced Features */
if(((r1 & 0x6) >> 1) == 0x3)
tp->media_type |= MEDIA_UTP_16;
else
{
if(((r1 & 0x6) >> 1) == 0x2)
tp->media_type |= MEDIA_STP_16;
else
{
if(((r1 & 0x6) >> 1) == 0x1)
tp->media_type |= MEDIA_UTP_4;
else
tp->media_type |= MEDIA_STP_4;
}
}
r1 = inb(ioaddr + CNFG_GP2);
if(!(r1 & 0x2) ) /* GP2_ETRD */
tp->mode_bits |= EARLY_TOKEN_REL;
/* see if the chip is corrupted
if(smctr_read_584_chksum(ioaddr))
{
printk(KERN_ERR "%s: EEPROM Checksum Failure\n", dev->name);
free_irq(dev->irq, dev);
goto out2;
}
*/
}
return (0);
out2:
release_region(ioaddr, SMCTR_IO_EXTENT);
out:
return err;
}
static int __init smctr_get_boardid(struct net_device *dev, int mca)
{
struct net_local *tp = netdev_priv(dev);
int ioaddr = dev->base_addr;
__u8 r, r1, IdByte;
__u16 BoardIdMask;
tp->board_id = BoardIdMask = 0;
if(mca)
{
BoardIdMask |= (MICROCHANNEL+INTERFACE_CHIP+TOKEN_MEDIA+PAGED_RAM+BOARD_16BIT);
tp->extra_info |= (INTERFACE_594_CHIP+RAM_SIZE_64K+NIC_825_BIT+ALTERNATE_IRQ_BIT+SLOT_16BIT);
}
else
{
BoardIdMask|=(INTERFACE_CHIP+TOKEN_MEDIA+PAGED_RAM+BOARD_16BIT);
tp->extra_info |= (INTERFACE_584_CHIP + RAM_SIZE_64K
+ NIC_825_BIT + ALTERNATE_IRQ_BIT);
}
if(!mca)
{
r = inb(ioaddr + BID_REG_1);
r &= 0x0c;
outb(r, ioaddr + BID_REG_1);
r = inb(ioaddr + BID_REG_1);
if(r & BID_SIXTEEN_BIT_BIT)
{
tp->extra_info |= SLOT_16BIT;
tp->adapter_bus = BUS_ISA16_TYPE;
}
else
tp->adapter_bus = BUS_ISA8_TYPE;
}
else
tp->adapter_bus = BUS_MCA_TYPE;
/* Get Board Id Byte */
IdByte = inb(ioaddr + BID_BOARD_ID_BYTE);
/* if Major version > 1.0 then
* return;
*/
if(IdByte & 0xF8)
return (-1);
r1 = inb(ioaddr + BID_REG_1);
r1 &= BID_ICR_MASK;
r1 |= BID_OTHER_BIT;
outb(r1, ioaddr + BID_REG_1);
r1 = inb(ioaddr + BID_REG_3);
r1 &= BID_EAR_MASK;
r1 |= BID_ENGR_PAGE;
outb(r1, ioaddr + BID_REG_3);
r1 = inb(ioaddr + BID_REG_1);
r1 &= BID_ICR_MASK;
r1 |= (BID_RLA | BID_OTHER_BIT);
outb(r1, ioaddr + BID_REG_1);
r1 = inb(ioaddr + BID_REG_1);
while(r1 & BID_RECALL_DONE_MASK)
r1 = inb(ioaddr + BID_REG_1);
r = inb(ioaddr + BID_LAR_0 + BID_REG_6);
/* clear chip rev bits */
tp->extra_info &= ~CHIP_REV_MASK;
tp->extra_info |= ((r & BID_EEPROM_CHIP_REV_MASK) << 6);
r1 = inb(ioaddr + BID_REG_1);
r1 &= BID_ICR_MASK;
r1 |= BID_OTHER_BIT;
outb(r1, ioaddr + BID_REG_1);
r1 = inb(ioaddr + BID_REG_3);
r1 &= BID_EAR_MASK;
r1 |= BID_EA6;
outb(r1, ioaddr + BID_REG_3);
r1 = inb(ioaddr + BID_REG_1);
r1 &= BID_ICR_MASK;
r1 |= BID_RLA;
outb(r1, ioaddr + BID_REG_1);
r1 = inb(ioaddr + BID_REG_1);
while(r1 & BID_RECALL_DONE_MASK)
r1 = inb(ioaddr + BID_REG_1);
return (BoardIdMask);
}
static int smctr_get_group_address(struct net_device *dev)
{
smctr_issue_read_word_cmd(dev, RW_INDIVIDUAL_GROUP_ADDR);
return(smctr_wait_cmd(dev));
}
static int smctr_get_functional_address(struct net_device *dev)
{
smctr_issue_read_word_cmd(dev, RW_FUNCTIONAL_ADDR);
return(smctr_wait_cmd(dev));
}
/* Calculate number of Non-MAC receive BDB's and data buffers.
* This function must simulate allocateing shared memory exactly
* as the allocate_shared_memory function above.
*/
static unsigned int smctr_get_num_rx_bdbs(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
unsigned int mem_used = 0;
/* Allocate System Control Blocks. */
mem_used += sizeof(SCGBlock);
mem_used += TO_PARAGRAPH_BOUNDRY(mem_used);
mem_used += sizeof(SCLBlock);
mem_used += TO_PARAGRAPH_BOUNDRY(mem_used);
mem_used += sizeof(ACBlock) * tp->num_acbs;
mem_used += TO_PARAGRAPH_BOUNDRY(mem_used);
mem_used += sizeof(ISBlock);
mem_used += TO_PARAGRAPH_BOUNDRY(mem_used);
mem_used += MISC_DATA_SIZE;
/* Allocate transmit FCB's. */
mem_used += TO_PARAGRAPH_BOUNDRY(mem_used);
mem_used += sizeof(FCBlock) * tp->num_tx_fcbs[MAC_QUEUE];
mem_used += sizeof(FCBlock) * tp->num_tx_fcbs[NON_MAC_QUEUE];
mem_used += sizeof(FCBlock) * tp->num_tx_fcbs[BUG_QUEUE];
/* Allocate transmit BDBs. */
mem_used += sizeof(BDBlock) * tp->num_tx_bdbs[MAC_QUEUE];
mem_used += sizeof(BDBlock) * tp->num_tx_bdbs[NON_MAC_QUEUE];
mem_used += sizeof(BDBlock) * tp->num_tx_bdbs[BUG_QUEUE];
/* Allocate receive FCBs. */
mem_used += sizeof(FCBlock) * tp->num_rx_fcbs[MAC_QUEUE];
mem_used += sizeof(FCBlock) * tp->num_rx_fcbs[NON_MAC_QUEUE];
/* Allocate receive BDBs. */
mem_used += sizeof(BDBlock) * tp->num_rx_bdbs[MAC_QUEUE];
/* Allocate MAC transmit buffers.
* MAC transmit buffers don't have to be on an ODD Boundry.
*/
mem_used += tp->tx_buff_size[MAC_QUEUE];
/* Allocate BUG transmit buffers. */
mem_used += tp->tx_buff_size[BUG_QUEUE];
/* Allocate MAC receive data buffers.
* MAC receive buffers don't have to be on a 256 byte boundary.
*/
mem_used += RX_DATA_BUFFER_SIZE * tp->num_rx_bdbs[MAC_QUEUE];
/* Allocate Non-MAC transmit buffers.
* For maximum Netware performance, put Tx Buffers on
* ODD Boundry,and then restore malloc to Even Boundrys.
*/
mem_used += 1L;
mem_used += tp->tx_buff_size[NON_MAC_QUEUE];
mem_used += 1L;
/* CALCULATE NUMBER OF NON-MAC RX BDB'S
* AND NON-MAC RX DATA BUFFERS
*
* Make sure the mem_used offset at this point is the
* same as in allocate_shared memory or the following
* boundary adjustment will be incorrect (i.e. not allocating
* the non-mac receive buffers above cannot change the 256
* byte offset).
*
* Since this cannot be guaranteed, adding the full 256 bytes
* to the amount of shared memory used at this point will guaranteed
* that the rx data buffers do not overflow shared memory.
*/
mem_used += 0x100;
return((0xffff - mem_used) / (RX_DATA_BUFFER_SIZE + sizeof(BDBlock)));
}
static int smctr_get_physical_drop_number(struct net_device *dev)
{
smctr_issue_read_word_cmd(dev, RW_PHYSICAL_DROP_NUMBER);
return(smctr_wait_cmd(dev));
}
static __u8 * smctr_get_rx_pointer(struct net_device *dev, short queue)
{
struct net_local *tp = netdev_priv(dev);
BDBlock *bdb;
bdb = (BDBlock *)((__u32)tp->ram_access
+ (__u32)(tp->rx_fcb_curr[queue]->trc_bdb_ptr));
tp->rx_fcb_curr[queue]->bdb_ptr = bdb;
return ((__u8 *)bdb->data_block_ptr);
}
static int smctr_get_station_id(struct net_device *dev)
{
smctr_issue_read_word_cmd(dev, RW_INDIVIDUAL_MAC_ADDRESS);
return(smctr_wait_cmd(dev));
}
/*
* Get the current statistics. This may be called with the card open
* or closed.
*/
static struct net_device_stats *smctr_get_stats(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
return ((struct net_device_stats *)&tp->MacStat);
}
static FCBlock *smctr_get_tx_fcb(struct net_device *dev, __u16 queue,
__u16 bytes_count)
{
struct net_local *tp = netdev_priv(dev);
FCBlock *pFCB;
BDBlock *pbdb;
unsigned short alloc_size;
unsigned short *temp;
if(smctr_debug > 20)
printk(KERN_DEBUG "smctr_get_tx_fcb\n");
/* check if there is enough FCB blocks */
if(tp->num_tx_fcbs_used[queue] >= tp->num_tx_fcbs[queue])
return ((FCBlock *)(-1L));
/* round off the input pkt size to the nearest even number */
alloc_size = (bytes_count + 1) & 0xfffe;
/* check if enough mem */
if((tp->tx_buff_used[queue] + alloc_size) > tp->tx_buff_size[queue])
return ((FCBlock *)(-1L));
/* check if past the end ;
* if exactly enough mem to end of ring, alloc from front.
* this avoids update of curr when curr = end
*/
if(((unsigned long)(tp->tx_buff_curr[queue]) + alloc_size)
>= (unsigned long)(tp->tx_buff_end[queue]))
{
/* check if enough memory from ring head */
alloc_size = alloc_size +
(__u16)((__u32)tp->tx_buff_end[queue]
- (__u32)tp->tx_buff_curr[queue]);
if((tp->tx_buff_used[queue] + alloc_size)
> tp->tx_buff_size[queue])
{
return ((FCBlock *)(-1L));
}
/* ring wrap */
tp->tx_buff_curr[queue] = tp->tx_buff_head[queue];
}
tp->tx_buff_used[queue] += alloc_size;
tp->num_tx_fcbs_used[queue]++;
tp->tx_fcb_curr[queue]->frame_length = bytes_count;
tp->tx_fcb_curr[queue]->memory_alloc = alloc_size;
temp = tp->tx_buff_curr[queue];
tp->tx_buff_curr[queue]
= (__u16 *)((__u32)temp + (__u32)((bytes_count + 1) & 0xfffe));
pbdb = tp->tx_fcb_curr[queue]->bdb_ptr;
pbdb->buffer_length = bytes_count;
pbdb->data_block_ptr = temp;
pbdb->trc_data_block_ptr = TRC_POINTER(temp);
pFCB = tp->tx_fcb_curr[queue];
tp->tx_fcb_curr[queue] = tp->tx_fcb_curr[queue]->next_ptr;
return (pFCB);
}
static int smctr_get_upstream_neighbor_addr(struct net_device *dev)
{
smctr_issue_read_word_cmd(dev, RW_UPSTREAM_NEIGHBOR_ADDRESS);
return(smctr_wait_cmd(dev));
}
static int smctr_hardware_send_packet(struct net_device *dev,
struct net_local *tp)
{
struct tr_statistics *tstat = &tp->MacStat;
struct sk_buff *skb;
FCBlock *fcb;
if(smctr_debug > 10)
printk(KERN_DEBUG"%s: smctr_hardware_send_packet\n", dev->name);
if(tp->status != OPEN)
return (-1);
if(tp->monitor_state_ready != 1)
return (-1);
for(;;)
{
/* Send first buffer from queue */
skb = skb_dequeue(&tp->SendSkbQueue);
if(skb == NULL)
return (-1);
tp->QueueSkb++;
if(skb->len < SMC_HEADER_SIZE || skb->len > tp->max_packet_size) return (-1);
smctr_enable_16bit(dev);
smctr_set_page(dev, (__u8 *)tp->ram_access);
if((fcb = smctr_get_tx_fcb(dev, NON_MAC_QUEUE, skb->len))
== (FCBlock *)(-1L))
{
smctr_disable_16bit(dev);
return (-1);
}
smctr_tx_move_frame(dev, skb,
(__u8 *)fcb->bdb_ptr->data_block_ptr, skb->len);
smctr_set_page(dev, (__u8 *)fcb);
smctr_trc_send_packet(dev, fcb, NON_MAC_QUEUE);
dev_kfree_skb(skb);
tstat->tx_packets++;
smctr_disable_16bit(dev);
}
return (0);
}
static int smctr_init_acbs(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
unsigned int i;
ACBlock *acb;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_init_acbs\n", dev->name);
acb = tp->acb_head;
acb->cmd_done_status = (ACB_COMMAND_DONE | ACB_COMMAND_SUCCESSFUL);
acb->cmd_info = ACB_CHAIN_END;
acb->cmd = 0;
acb->subcmd = 0;
acb->data_offset_lo = 0;
acb->data_offset_hi = 0;
acb->next_ptr
= (ACBlock *)(((char *)acb) + sizeof(ACBlock));
acb->trc_next_ptr = TRC_POINTER(acb->next_ptr);
for(i = 1; i < tp->num_acbs; i++)
{
acb = acb->next_ptr;
acb->cmd_done_status
= (ACB_COMMAND_DONE | ACB_COMMAND_SUCCESSFUL);
acb->cmd_info = ACB_CHAIN_END;
acb->cmd = 0;
acb->subcmd = 0;
acb->data_offset_lo = 0;
acb->data_offset_hi = 0;
acb->next_ptr
= (ACBlock *)(((char *)acb) + sizeof(ACBlock));
acb->trc_next_ptr = TRC_POINTER(acb->next_ptr);
}
acb->next_ptr = tp->acb_head;
acb->trc_next_ptr = TRC_POINTER(tp->acb_head);
tp->acb_next = tp->acb_head->next_ptr;
tp->acb_curr = tp->acb_head->next_ptr;
tp->num_acbs_used = 0;
return (0);
}
static int smctr_init_adapter(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
int err;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_init_adapter\n", dev->name);
tp->status = CLOSED;
tp->page_offset_mask = (tp->ram_usable * 1024) - 1;
skb_queue_head_init(&tp->SendSkbQueue);
tp->QueueSkb = MAX_TX_QUEUE;
if(!(tp->group_address_0 & 0x0080))
tp->group_address_0 |= 0x00C0;
if(!(tp->functional_address_0 & 0x00C0))
tp->functional_address_0 |= 0x00C0;
tp->functional_address[0] &= 0xFF7F;
if(tp->authorized_function_classes == 0)
tp->authorized_function_classes = 0x7FFF;
if(tp->authorized_access_priority == 0)
tp->authorized_access_priority = 0x06;
smctr_disable_bic_int(dev);
smctr_set_trc_reset(dev->base_addr);
smctr_enable_16bit(dev);
smctr_set_page(dev, (__u8 *)tp->ram_access);
if(smctr_checksum_firmware(dev))
{
printk(KERN_ERR "%s: Previously loaded firmware is missing\n",dev->name); return (-ENOENT);
}
if((err = smctr_ram_memory_test(dev)))
{
printk(KERN_ERR "%s: RAM memory test failed.\n", dev->name);
return (-EIO);
}
smctr_set_rx_look_ahead(dev);
smctr_load_node_addr(dev);
/* Initialize adapter for Internal Self Test. */
smctr_reset_adapter(dev);
if((err = smctr_init_card_real(dev)))
{
printk(KERN_ERR "%s: Initialization of card failed (%d)\n",
dev->name, err);
return (-EINVAL);
}
/* This routine clobbers the TRC's internal registers. */
if((err = smctr_internal_self_test(dev)))
{
printk(KERN_ERR "%s: Card failed internal self test (%d)\n",
dev->name, err);
return (-EINVAL);
}
/* Re-Initialize adapter's internal registers */
smctr_reset_adapter(dev);
if((err = smctr_init_card_real(dev)))
{
printk(KERN_ERR "%s: Initialization of card failed (%d)\n",
dev->name, err);
return (-EINVAL);
}
smctr_enable_bic_int(dev);
if((err = smctr_issue_enable_int_cmd(dev, TRC_INTERRUPT_ENABLE_MASK)))
return (err);
smctr_disable_16bit(dev);
return (0);
}
static int smctr_init_card_real(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
int err = 0;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_init_card_real\n", dev->name);
tp->sh_mem_used = 0;
tp->num_acbs = NUM_OF_ACBS;
/* Range Check Max Packet Size */
if(tp->max_packet_size < 256)
tp->max_packet_size = 256;
else
{
if(tp->max_packet_size > NON_MAC_TX_BUFFER_MEMORY)
tp->max_packet_size = NON_MAC_TX_BUFFER_MEMORY;
}
tp->num_of_tx_buffs = (NON_MAC_TX_BUFFER_MEMORY
/ tp->max_packet_size) - 1;
if(tp->num_of_tx_buffs > NUM_NON_MAC_TX_FCBS)
tp->num_of_tx_buffs = NUM_NON_MAC_TX_FCBS;
else
{
if(tp->num_of_tx_buffs == 0)
tp->num_of_tx_buffs = 1;
}
/* Tx queue constants */
tp->num_tx_fcbs [BUG_QUEUE] = NUM_BUG_TX_FCBS;
tp->num_tx_bdbs [BUG_QUEUE] = NUM_BUG_TX_BDBS;
tp->tx_buff_size [BUG_QUEUE] = BUG_TX_BUFFER_MEMORY;
tp->tx_buff_used [BUG_QUEUE] = 0;
tp->tx_queue_status [BUG_QUEUE] = NOT_TRANSMITING;
tp->num_tx_fcbs [MAC_QUEUE] = NUM_MAC_TX_FCBS;
tp->num_tx_bdbs [MAC_QUEUE] = NUM_MAC_TX_BDBS;
tp->tx_buff_size [MAC_QUEUE] = MAC_TX_BUFFER_MEMORY;
tp->tx_buff_used [MAC_QUEUE] = 0;
tp->tx_queue_status [MAC_QUEUE] = NOT_TRANSMITING;
tp->num_tx_fcbs [NON_MAC_QUEUE] = NUM_NON_MAC_TX_FCBS;
tp->num_tx_bdbs [NON_MAC_QUEUE] = NUM_NON_MAC_TX_BDBS;
tp->tx_buff_size [NON_MAC_QUEUE] = NON_MAC_TX_BUFFER_MEMORY;
tp->tx_buff_used [NON_MAC_QUEUE] = 0;
tp->tx_queue_status [NON_MAC_QUEUE] = NOT_TRANSMITING;
/* Receive Queue Constants */
tp->num_rx_fcbs[MAC_QUEUE] = NUM_MAC_RX_FCBS;
tp->num_rx_bdbs[MAC_QUEUE] = NUM_MAC_RX_BDBS;
if(tp->extra_info & CHIP_REV_MASK)
tp->num_rx_fcbs[NON_MAC_QUEUE] = 78; /* 825 Rev. XE */
else
tp->num_rx_fcbs[NON_MAC_QUEUE] = 7; /* 825 Rev. XD */
tp->num_rx_bdbs[NON_MAC_QUEUE] = smctr_get_num_rx_bdbs(dev);
smctr_alloc_shared_memory(dev);
smctr_init_shared_memory(dev);
if((err = smctr_issue_init_timers_cmd(dev)))
return (err);
if((err = smctr_issue_init_txrx_cmd(dev)))
{
printk(KERN_ERR "%s: Hardware failure\n", dev->name);
return (err);
}
return (0);
}
static int smctr_init_rx_bdbs(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
unsigned int i, j;
BDBlock *bdb;
__u16 *buf;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_init_rx_bdbs\n", dev->name);
for(i = 0; i < NUM_RX_QS_USED; i++)
{
bdb = tp->rx_bdb_head[i];
buf = tp->rx_buff_head[i];
bdb->info = (BDB_CHAIN_END | BDB_NO_WARNING);
bdb->buffer_length = RX_DATA_BUFFER_SIZE;
bdb->next_ptr = (BDBlock *)(((char *)bdb) + sizeof(BDBlock));
bdb->data_block_ptr = buf;
bdb->trc_next_ptr = TRC_POINTER(bdb->next_ptr);
if(i == NON_MAC_QUEUE)
bdb->trc_data_block_ptr = RX_BUFF_TRC_POINTER(buf);
else
bdb->trc_data_block_ptr = TRC_POINTER(buf);
for(j = 1; j < tp->num_rx_bdbs[i]; j++)
{
bdb->next_ptr->back_ptr = bdb;
bdb = bdb->next_ptr;
buf = (__u16 *)((char *)buf + RX_DATA_BUFFER_SIZE);
bdb->info = (BDB_NOT_CHAIN_END | BDB_NO_WARNING);
bdb->buffer_length = RX_DATA_BUFFER_SIZE;
bdb->next_ptr = (BDBlock *)(((char *)bdb) + sizeof(BDBlock));
bdb->data_block_ptr = buf;
bdb->trc_next_ptr = TRC_POINTER(bdb->next_ptr);
if(i == NON_MAC_QUEUE)
bdb->trc_data_block_ptr = RX_BUFF_TRC_POINTER(buf);
else
bdb->trc_data_block_ptr = TRC_POINTER(buf);
}
bdb->next_ptr = tp->rx_bdb_head[i];
bdb->trc_next_ptr = TRC_POINTER(tp->rx_bdb_head[i]);
tp->rx_bdb_head[i]->back_ptr = bdb;
tp->rx_bdb_curr[i] = tp->rx_bdb_head[i]->next_ptr;
}
return (0);
}
static int smctr_init_rx_fcbs(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
unsigned int i, j;
FCBlock *fcb;
for(i = 0; i < NUM_RX_QS_USED; i++)
{
fcb = tp->rx_fcb_head[i];
fcb->frame_status = 0;
fcb->frame_length = 0;
fcb->info = FCB_CHAIN_END;
fcb->next_ptr = (FCBlock *)(((char*)fcb) + sizeof(FCBlock));
if(i == NON_MAC_QUEUE)
fcb->trc_next_ptr = RX_FCB_TRC_POINTER(fcb->next_ptr);
else
fcb->trc_next_ptr = TRC_POINTER(fcb->next_ptr);
for(j = 1; j < tp->num_rx_fcbs[i]; j++)
{
fcb->next_ptr->back_ptr = fcb;
fcb = fcb->next_ptr;
fcb->frame_status = 0;
fcb->frame_length = 0;
fcb->info = FCB_WARNING;
fcb->next_ptr
= (FCBlock *)(((char *)fcb) + sizeof(FCBlock));
if(i == NON_MAC_QUEUE)
fcb->trc_next_ptr
= RX_FCB_TRC_POINTER(fcb->next_ptr);
else
fcb->trc_next_ptr
= TRC_POINTER(fcb->next_ptr);
}
fcb->next_ptr = tp->rx_fcb_head[i];
if(i == NON_MAC_QUEUE)
fcb->trc_next_ptr = RX_FCB_TRC_POINTER(fcb->next_ptr);
else
fcb->trc_next_ptr = TRC_POINTER(fcb->next_ptr);
tp->rx_fcb_head[i]->back_ptr = fcb;
tp->rx_fcb_curr[i] = tp->rx_fcb_head[i]->next_ptr;
}
return(0);
}
static int smctr_init_shared_memory(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
unsigned int i;
__u32 *iscpb;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_init_shared_memory\n", dev->name);
smctr_set_page(dev, (__u8 *)(unsigned int)tp->iscpb_ptr);
/* Initialize Initial System Configuration Point. (ISCP) */
iscpb = (__u32 *)PAGE_POINTER(&tp->iscpb_ptr->trc_scgb_ptr);
*iscpb = (__u32)(SWAP_WORDS(TRC_POINTER(tp->scgb_ptr)));
smctr_set_page(dev, (__u8 *)tp->ram_access);
/* Initialize System Configuration Pointers. (SCP) */
tp->scgb_ptr->config = (SCGB_ADDRESS_POINTER_FORMAT
| SCGB_MULTI_WORD_CONTROL | SCGB_DATA_FORMAT
| SCGB_BURST_LENGTH);
tp->scgb_ptr->trc_sclb_ptr = TRC_POINTER(tp->sclb_ptr);
tp->scgb_ptr->trc_acb_ptr = TRC_POINTER(tp->acb_head);
tp->scgb_ptr->trc_isb_ptr = TRC_POINTER(tp->isb_ptr);
tp->scgb_ptr->isbsiz = (sizeof(ISBlock)) - 2;
/* Initialize System Control Block. (SCB) */
tp->sclb_ptr->valid_command = SCLB_VALID | SCLB_CMD_NOP;
tp->sclb_ptr->iack_code = 0;
tp->sclb_ptr->resume_control = 0;
tp->sclb_ptr->int_mask_control = 0;
tp->sclb_ptr->int_mask_state = 0;
/* Initialize Interrupt Status Block. (ISB) */
for(i = 0; i < NUM_OF_INTERRUPTS; i++)
{
tp->isb_ptr->IStatus[i].IType = 0xf0;
tp->isb_ptr->IStatus[i].ISubtype = 0;
}
tp->current_isb_index = 0;
/* Initialize Action Command Block. (ACB) */
smctr_init_acbs(dev);
/* Initialize transmit FCB's and BDB's. */
smctr_link_tx_fcbs_to_bdbs(dev);
smctr_init_tx_bdbs(dev);
smctr_init_tx_fcbs(dev);
/* Initialize receive FCB's and BDB's. */
smctr_init_rx_bdbs(dev);
smctr_init_rx_fcbs(dev);
return (0);
}
static int smctr_init_tx_bdbs(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
unsigned int i, j;
BDBlock *bdb;
for(i = 0; i < NUM_TX_QS_USED; i++)
{
bdb = tp->tx_bdb_head[i];
bdb->info = (BDB_NOT_CHAIN_END | BDB_NO_WARNING);
bdb->next_ptr = (BDBlock *)(((char *)bdb) + sizeof(BDBlock));
bdb->trc_next_ptr = TRC_POINTER(bdb->next_ptr);
for(j = 1; j < tp->num_tx_bdbs[i]; j++)
{
bdb->next_ptr->back_ptr = bdb;
bdb = bdb->next_ptr;
bdb->info = (BDB_NOT_CHAIN_END | BDB_NO_WARNING);
bdb->next_ptr
= (BDBlock *)(((char *)bdb) + sizeof( BDBlock)); bdb->trc_next_ptr = TRC_POINTER(bdb->next_ptr);
}
bdb->next_ptr = tp->tx_bdb_head[i];
bdb->trc_next_ptr = TRC_POINTER(tp->tx_bdb_head[i]);
tp->tx_bdb_head[i]->back_ptr = bdb;
}
return (0);
}
static int smctr_init_tx_fcbs(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
unsigned int i, j;
FCBlock *fcb;
for(i = 0; i < NUM_TX_QS_USED; i++)
{
fcb = tp->tx_fcb_head[i];
fcb->frame_status = 0;
fcb->frame_length = 0;
fcb->info = FCB_CHAIN_END;
fcb->next_ptr = (FCBlock *)(((char *)fcb) + sizeof(FCBlock));
fcb->trc_next_ptr = TRC_POINTER(fcb->next_ptr);
for(j = 1; j < tp->num_tx_fcbs[i]; j++)
{
fcb->next_ptr->back_ptr = fcb;
fcb = fcb->next_ptr;
fcb->frame_status = 0;
fcb->frame_length = 0;
fcb->info = FCB_CHAIN_END;
fcb->next_ptr
= (FCBlock *)(((char *)fcb) + sizeof(FCBlock));
fcb->trc_next_ptr = TRC_POINTER(fcb->next_ptr);
}
fcb->next_ptr = tp->tx_fcb_head[i];
fcb->trc_next_ptr = TRC_POINTER(tp->tx_fcb_head[i]);
tp->tx_fcb_head[i]->back_ptr = fcb;
tp->tx_fcb_end[i] = tp->tx_fcb_head[i]->next_ptr;
tp->tx_fcb_curr[i] = tp->tx_fcb_head[i]->next_ptr;
tp->num_tx_fcbs_used[i] = 0;
}
return (0);
}
static int smctr_internal_self_test(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
int err;
if((err = smctr_issue_test_internal_rom_cmd(dev)))
return (err);
if((err = smctr_wait_cmd(dev)))
return (err);
if(tp->acb_head->cmd_done_status & 0xff)
return (-1);
if((err = smctr_issue_test_hic_cmd(dev)))
return (err);
if((err = smctr_wait_cmd(dev)))
return (err);
if(tp->acb_head->cmd_done_status & 0xff)
return (-1);
if((err = smctr_issue_test_mac_reg_cmd(dev)))
return (err);
if((err = smctr_wait_cmd(dev)))
return (err);
if(tp->acb_head->cmd_done_status & 0xff)
return (-1);
return (0);
}
/*
* The typical workload of the driver: Handle the network interface interrupts.
*/
static irqreturn_t smctr_interrupt(int irq, void *dev_id)
{
struct net_device *dev = dev_id;
struct net_local *tp;
int ioaddr;
__u16 interrupt_unmask_bits = 0, interrupt_ack_code = 0xff00;
__u16 err1, err = NOT_MY_INTERRUPT;
__u8 isb_type, isb_subtype;
__u16 isb_index;
ioaddr = dev->base_addr;
tp = netdev_priv(dev);
if(tp->status == NOT_INITIALIZED)
return IRQ_NONE;
spin_lock(&tp->lock);
smctr_disable_bic_int(dev);
smctr_enable_16bit(dev);
smctr_clear_int(dev);
/* First read the LSB */
while((tp->isb_ptr->IStatus[tp->current_isb_index].IType & 0xf0) == 0)
{
isb_index = tp->current_isb_index;
isb_type = tp->isb_ptr->IStatus[isb_index].IType;
isb_subtype = tp->isb_ptr->IStatus[isb_index].ISubtype;
(tp->current_isb_index)++;
if(tp->current_isb_index == NUM_OF_INTERRUPTS)
tp->current_isb_index = 0;
if(isb_type >= 0x10)
{
smctr_disable_16bit(dev);
spin_unlock(&tp->lock);
return IRQ_HANDLED;
}
err = HARDWARE_FAILED;
interrupt_ack_code = isb_index;
tp->isb_ptr->IStatus[isb_index].IType |= 0xf0;
interrupt_unmask_bits |= (1 << (__u16)isb_type);
switch(isb_type)
{
case ISB_IMC_MAC_TYPE_3:
smctr_disable_16bit(dev);
switch(isb_subtype)
{
case 0:
tp->monitor_state = MS_MONITOR_FSM_INACTIVE;
break;
case 1:
tp->monitor_state = MS_REPEAT_BEACON_STATE;
break;
case 2:
tp->monitor_state = MS_REPEAT_CLAIM_TOKEN_STATE;
break;
case 3:
tp->monitor_state = MS_TRANSMIT_CLAIM_TOKEN_STATE; break;
case 4:
tp->monitor_state = MS_STANDBY_MONITOR_STATE;
break;
case 5:
tp->monitor_state = MS_TRANSMIT_BEACON_STATE;
break;
case 6:
tp->monitor_state = MS_ACTIVE_MONITOR_STATE;
break;
case 7:
tp->monitor_state = MS_TRANSMIT_RING_PURGE_STATE;
break;
case 8: /* diagnostic state */
break;
case 9:
tp->monitor_state = MS_BEACON_TEST_STATE;
if(smctr_lobe_media_test(dev))
{
tp->ring_status_flags = RING_STATUS_CHANGED;
tp->ring_status = AUTO_REMOVAL_ERROR;
smctr_ring_status_chg(dev);
smctr_bypass_state(dev);
}
else
smctr_issue_insert_cmd(dev);
break;
/* case 0x0a-0xff, illegal states */
default:
break;
}
tp->ring_status_flags = MONITOR_STATE_CHANGED;
err = smctr_ring_status_chg(dev);
smctr_enable_16bit(dev);
break;
/* Type 0x02 - MAC Error Counters Interrupt
* One or more MAC Error Counter is half full
* MAC Error Counters
* Lost_FR_Error_Counter
* RCV_Congestion_Counter
* FR_copied_Error_Counter
* FREQ_Error_Counter
* Token_Error_Counter
* Line_Error_Counter
* Internal_Error_Count
*/
case ISB_IMC_MAC_ERROR_COUNTERS:
/* Read 802.5 Error Counters */
err = smctr_issue_read_ring_status_cmd(dev);
break;
/* Type 0x04 - MAC Type 2 Interrupt
* HOST needs to enqueue MAC Frame for transmission
* SubType Bit 15 - RQ_INIT_PDU( Request Initialization) * Changed from RQ_INIT_PDU to
* TRC_Status_Changed_Indicate
*/
case ISB_IMC_MAC_TYPE_2:
err = smctr_issue_read_ring_status_cmd(dev);
break;
/* Type 0x05 - TX Frame Interrupt (FI). */
case ISB_IMC_TX_FRAME:
/* BUG QUEUE for TRC stuck receive BUG */
if(isb_subtype & TX_PENDING_PRIORITY_2)
{
if((err = smctr_tx_complete(dev, BUG_QUEUE)) != SUCCESS)
break;
}
/* NON-MAC frames only */
if(isb_subtype & TX_PENDING_PRIORITY_1)
{
if((err = smctr_tx_complete(dev, NON_MAC_QUEUE)) != SUCCESS)
break;
}
/* MAC frames only */
if(isb_subtype & TX_PENDING_PRIORITY_0)
err = smctr_tx_complete(dev, MAC_QUEUE); break;
/* Type 0x06 - TX END OF QUEUE (FE) */
case ISB_IMC_END_OF_TX_QUEUE:
/* BUG queue */
if(isb_subtype & TX_PENDING_PRIORITY_2)
{
/* ok to clear Receive FIFO overrun
* imask send_BUG now completes.
*/
interrupt_unmask_bits |= 0x800;
tp->tx_queue_status[BUG_QUEUE] = NOT_TRANSMITING;
if((err = smctr_tx_complete(dev, BUG_QUEUE)) != SUCCESS)
break;
if((err = smctr_restart_tx_chain(dev, BUG_QUEUE)) != SUCCESS)
break;
}
/* NON-MAC queue only */
if(isb_subtype & TX_PENDING_PRIORITY_1)
{
tp->tx_queue_status[NON_MAC_QUEUE] = NOT_TRANSMITING;
if((err = smctr_tx_complete(dev, NON_MAC_QUEUE)) != SUCCESS)
break;
if((err = smctr_restart_tx_chain(dev, NON_MAC_QUEUE)) != SUCCESS)
break;
}
/* MAC queue only */
if(isb_subtype & TX_PENDING_PRIORITY_0)
{
tp->tx_queue_status[MAC_QUEUE] = NOT_TRANSMITING;
if((err = smctr_tx_complete(dev, MAC_QUEUE)) != SUCCESS)
break;
err = smctr_restart_tx_chain(dev, MAC_QUEUE);
}
break;
/* Type 0x07 - NON-MAC RX Resource Interrupt
* Subtype bit 12 - (BW) BDB warning
* Subtype bit 13 - (FW) FCB warning
* Subtype bit 14 - (BE) BDB End of chain
* Subtype bit 15 - (FE) FCB End of chain
*/
case ISB_IMC_NON_MAC_RX_RESOURCE:
tp->rx_fifo_overrun_count = 0;
tp->receive_queue_number = NON_MAC_QUEUE;
err1 = smctr_rx_frame(dev);
if(isb_subtype & NON_MAC_RX_RESOURCE_FE)
{
if((err = smctr_issue_resume_rx_fcb_cmd( dev, NON_MAC_QUEUE)) != SUCCESS) break;
if(tp->ptr_rx_fcb_overruns)
(*tp->ptr_rx_fcb_overruns)++;
}
if(isb_subtype & NON_MAC_RX_RESOURCE_BE)
{
if((err = smctr_issue_resume_rx_bdb_cmd( dev, NON_MAC_QUEUE)) != SUCCESS) break;
if(tp->ptr_rx_bdb_overruns)
(*tp->ptr_rx_bdb_overruns)++;
}
err = err1;
break;
/* Type 0x08 - MAC RX Resource Interrupt
* Subtype bit 12 - (BW) BDB warning
* Subtype bit 13 - (FW) FCB warning
* Subtype bit 14 - (BE) BDB End of chain
* Subtype bit 15 - (FE) FCB End of chain
*/
case ISB_IMC_MAC_RX_RESOURCE:
tp->receive_queue_number = MAC_QUEUE;
err1 = smctr_rx_frame(dev);
if(isb_subtype & MAC_RX_RESOURCE_FE)
{
if((err = smctr_issue_resume_rx_fcb_cmd( dev, MAC_QUEUE)) != SUCCESS)
break;
if(tp->ptr_rx_fcb_overruns)
(*tp->ptr_rx_fcb_overruns)++;
}
if(isb_subtype & MAC_RX_RESOURCE_BE)
{
if((err = smctr_issue_resume_rx_bdb_cmd( dev, MAC_QUEUE)) != SUCCESS)
break;
if(tp->ptr_rx_bdb_overruns)
(*tp->ptr_rx_bdb_overruns)++;
}
err = err1;
break;
/* Type 0x09 - NON_MAC RX Frame Interrupt */
case ISB_IMC_NON_MAC_RX_FRAME:
tp->rx_fifo_overrun_count = 0;
tp->receive_queue_number = NON_MAC_QUEUE;
err = smctr_rx_frame(dev);
break;
/* Type 0x0A - MAC RX Frame Interrupt */
case ISB_IMC_MAC_RX_FRAME:
tp->receive_queue_number = MAC_QUEUE;
err = smctr_rx_frame(dev);
break;
/* Type 0x0B - TRC status
* TRC has encountered an error condition
* subtype bit 14 - transmit FIFO underrun
* subtype bit 15 - receive FIFO overrun
*/
case ISB_IMC_TRC_FIFO_STATUS:
if(isb_subtype & TRC_FIFO_STATUS_TX_UNDERRUN)
{
if(tp->ptr_tx_fifo_underruns)
(*tp->ptr_tx_fifo_underruns)++;
}
if(isb_subtype & TRC_FIFO_STATUS_RX_OVERRUN)
{
/* update overrun stuck receive counter
* if >= 3, has to clear it by sending
* back to back frames. We pick
* DAT(duplicate address MAC frame)
*/
tp->rx_fifo_overrun_count++;
if(tp->rx_fifo_overrun_count >= 3)
{
tp->rx_fifo_overrun_count = 0;
/* delay clearing fifo overrun
* imask till send_BUG tx
* complete posted
*/
interrupt_unmask_bits &= (~0x800);
printk(KERN_CRIT "Jay please send bug\n");// smctr_send_bug(dev);
}
if(tp->ptr_rx_fifo_overruns)
(*tp->ptr_rx_fifo_overruns)++;
}
err = SUCCESS;
break;
/* Type 0x0C - Action Command Status Interrupt
* Subtype bit 14 - CB end of command chain (CE)
* Subtype bit 15 - CB command interrupt (CI)
*/
case ISB_IMC_COMMAND_STATUS:
err = SUCCESS;
if(tp->acb_head->cmd == ACB_CMD_HIC_NOP)
{
printk(KERN_ERR "i1\n");
smctr_disable_16bit(dev);
/* XXXXXXXXXXXXXXXXX */
/* err = UM_Interrupt(dev); */
smctr_enable_16bit(dev);
}
else
{
if((tp->acb_head->cmd
== ACB_CMD_READ_TRC_STATUS)
&& (tp->acb_head->subcmd
== RW_TRC_STATUS_BLOCK))
{
if(tp->ptr_bcn_type)
{
*(tp->ptr_bcn_type)
= (__u32)((SBlock *)tp->misc_command_data)->BCN_Type;
}
if(((SBlock *)tp->misc_command_data)->Status_CHG_Indicate & ERROR_COUNTERS_CHANGED)
{
smctr_update_err_stats(dev);
}
if(((SBlock *)tp->misc_command_data)->Status_CHG_Indicate & TI_NDIS_RING_STATUS_CHANGED)
{
tp->ring_status
= ((SBlock*)tp->misc_command_data)->TI_NDIS_Ring_Status;
smctr_disable_16bit(dev);
err = smctr_ring_status_chg(dev);
smctr_enable_16bit(dev);
if((tp->ring_status & REMOVE_RECEIVED)
&& (tp->config_word0 & NO_AUTOREMOVE))
{
smctr_issue_remove_cmd(dev);
}
if(err != SUCCESS)
{
tp->acb_pending = 0;
break;
}
}
if(((SBlock *)tp->misc_command_data)->Status_CHG_Indicate & UNA_CHANGED)
{
if(tp->ptr_una)
{
tp->ptr_una[0] = SWAP_BYTES(((SBlock *)tp->misc_command_data)->UNA[0]);
tp->ptr_una[1] = SWAP_BYTES(((SBlock *)tp->misc_command_data)->UNA[1]);
tp->ptr_una[2] = SWAP_BYTES(((SBlock *)tp->misc_command_data)->UNA[2]);
}
}
if(((SBlock *)tp->misc_command_data)->Status_CHG_Indicate & READY_TO_SEND_RQ_INIT) {
err = smctr_send_rq_init(dev);
}
}
}
tp->acb_pending = 0;
break;
/* Type 0x0D - MAC Type 1 interrupt
* Subtype -- 00 FR_BCN received at S12
* 01 FR_BCN received at S21
* 02 FR_DAT(DA=MA, A<>0) received at S21
* 03 TSM_EXP at S21
* 04 FR_REMOVE received at S42
* 05 TBR_EXP, BR_FLAG_SET at S42
* 06 TBT_EXP at S53
*/
case ISB_IMC_MAC_TYPE_1:
if(isb_subtype > 8)
{
err = HARDWARE_FAILED;
break;
}
err = SUCCESS;
switch(isb_subtype)
{
case 0:
tp->join_state = JS_BYPASS_STATE;
if(tp->status != CLOSED)
{
tp->status = CLOSED;
err = smctr_status_chg(dev);
}
break;
case 1:
tp->join_state = JS_LOBE_TEST_STATE;
break;
case 2:
tp->join_state = JS_DETECT_MONITOR_PRESENT_STATE;
break;
case 3:
tp->join_state = JS_AWAIT_NEW_MONITOR_STATE;
break;
case 4:
tp->join_state = JS_DUPLICATE_ADDRESS_TEST_STATE;
break;
case 5:
tp->join_state = JS_NEIGHBOR_NOTIFICATION_STATE;
break;
case 6:
tp->join_state = JS_REQUEST_INITIALIZATION_STATE;
break;
case 7:
tp->join_state = JS_JOIN_COMPLETE_STATE;
tp->status = OPEN;
err = smctr_status_chg(dev);
break;
case 8:
tp->join_state = JS_BYPASS_WAIT_STATE;
break;
}
break ;
/* Type 0x0E - TRC Initialization Sequence Interrupt
* Subtype -- 00-FF Initializatin sequence complete
*/
case ISB_IMC_TRC_INTRNL_TST_STATUS:
tp->status = INITIALIZED;
smctr_disable_16bit(dev);
err = smctr_status_chg(dev);
smctr_enable_16bit(dev);
break;
/* other interrupt types, illegal */
default:
break;
}
if(err != SUCCESS)
break;
}
/* Checking the ack code instead of the unmask bits here is because :
* while fixing the stuck receive, DAT frame are sent and mask off
* FIFO overrun interrupt temporarily (interrupt_unmask_bits = 0)
* but we still want to issue ack to ISB
*/
if(!(interrupt_ack_code & 0xff00))
smctr_issue_int_ack(dev, interrupt_ack_code, interrupt_unmask_bits);
smctr_disable_16bit(dev);
smctr_enable_bic_int(dev);
spin_unlock(&tp->lock);
return IRQ_HANDLED;
}
static int smctr_issue_enable_int_cmd(struct net_device *dev,
__u16 interrupt_enable_mask)
{
struct net_local *tp = netdev_priv(dev);
int err;
if((err = smctr_wait_while_cbusy(dev)))
return (err);
tp->sclb_ptr->int_mask_control = interrupt_enable_mask;
tp->sclb_ptr->valid_command = SCLB_VALID | SCLB_CMD_CLEAR_INTERRUPT_MASK;
smctr_set_ctrl_attention(dev);
return (0);
}
static int smctr_issue_int_ack(struct net_device *dev, __u16 iack_code, __u16 ibits)
{
struct net_local *tp = netdev_priv(dev);
if(smctr_wait_while_cbusy(dev))
return (-1);
tp->sclb_ptr->int_mask_control = ibits;
tp->sclb_ptr->iack_code = iack_code << 1; /* use the offset from base */ tp->sclb_ptr->resume_control = 0;
tp->sclb_ptr->valid_command = SCLB_VALID | SCLB_IACK_CODE_VALID | SCLB_CMD_CLEAR_INTERRUPT_MASK;
smctr_set_ctrl_attention(dev);
return (0);
}
static int smctr_issue_init_timers_cmd(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
unsigned int i;
int err;
__u16 *pTimer_Struc = (__u16 *)tp->misc_command_data;
if((err = smctr_wait_while_cbusy(dev)))
return (err);
if((err = smctr_wait_cmd(dev)))
return (err);
tp->config_word0 = THDREN | DMA_TRIGGER | USETPT | NO_AUTOREMOVE;
tp->config_word1 = 0;
if((tp->media_type == MEDIA_STP_16)
|| (tp->media_type == MEDIA_UTP_16)
|| (tp->media_type == MEDIA_STP_16_UTP_16))
{
tp->config_word0 |= FREQ_16MB_BIT;
}
if(tp->mode_bits & EARLY_TOKEN_REL)
tp->config_word0 |= ETREN;
if(tp->mode_bits & LOOPING_MODE_MASK)
tp->config_word0 |= RX_OWN_BIT;
else
tp->config_word0 &= ~RX_OWN_BIT;
if(tp->receive_mask & PROMISCUOUS_MODE)
tp->config_word0 |= PROMISCUOUS_BIT;
else
tp->config_word0 &= ~PROMISCUOUS_BIT;
if(tp->receive_mask & ACCEPT_ERR_PACKETS)
tp->config_word0 |= SAVBAD_BIT;
else
tp->config_word0 &= ~SAVBAD_BIT;
if(tp->receive_mask & ACCEPT_ATT_MAC_FRAMES)
tp->config_word0 |= RXATMAC;
else
tp->config_word0 &= ~RXATMAC;
if(tp->receive_mask & ACCEPT_MULTI_PROM)
tp->config_word1 |= MULTICAST_ADDRESS_BIT;
else
tp->config_word1 &= ~MULTICAST_ADDRESS_BIT;
if(tp->receive_mask & ACCEPT_SOURCE_ROUTING_SPANNING)
tp->config_word1 |= SOURCE_ROUTING_SPANNING_BITS;
else
{
if(tp->receive_mask & ACCEPT_SOURCE_ROUTING)
tp->config_word1 |= SOURCE_ROUTING_EXPLORER_BIT;
else
tp->config_word1 &= ~SOURCE_ROUTING_SPANNING_BITS;
}
if((tp->media_type == MEDIA_STP_16)
|| (tp->media_type == MEDIA_UTP_16)
|| (tp->media_type == MEDIA_STP_16_UTP_16))
{
tp->config_word1 |= INTERFRAME_SPACING_16;
}
else
tp->config_word1 |= INTERFRAME_SPACING_4;
*pTimer_Struc++ = tp->config_word0;
*pTimer_Struc++ = tp->config_word1;
if((tp->media_type == MEDIA_STP_4)
|| (tp->media_type == MEDIA_UTP_4)
|| (tp->media_type == MEDIA_STP_4_UTP_4))
{
*pTimer_Struc++ = 0x00FA; /* prescale */
*pTimer_Struc++ = 0x2710; /* TPT_limit */
*pTimer_Struc++ = 0x2710; /* TQP_limit */
*pTimer_Struc++ = 0x0A28; /* TNT_limit */
*pTimer_Struc++ = 0x3E80; /* TBT_limit */
*pTimer_Struc++ = 0x3A98; /* TSM_limit */
*pTimer_Struc++ = 0x1B58; /* TAM_limit */
*pTimer_Struc++ = 0x00C8; /* TBR_limit */
*pTimer_Struc++ = 0x07D0; /* TER_limit */
*pTimer_Struc++ = 0x000A; /* TGT_limit */
*pTimer_Struc++ = 0x1162; /* THT_limit */
*pTimer_Struc++ = 0x07D0; /* TRR_limit */
*pTimer_Struc++ = 0x1388; /* TVX_limit */
*pTimer_Struc++ = 0x0000; /* reserved */
}
else
{
*pTimer_Struc++ = 0x03E8; /* prescale */
*pTimer_Struc++ = 0x9C40; /* TPT_limit */
*pTimer_Struc++ = 0x9C40; /* TQP_limit */
*pTimer_Struc++ = 0x0A28; /* TNT_limit */
*pTimer_Struc++ = 0x3E80; /* TBT_limit */
*pTimer_Struc++ = 0x3A98; /* TSM_limit */
*pTimer_Struc++ = 0x1B58; /* TAM_limit */
*pTimer_Struc++ = 0x00C8; /* TBR_limit */
*pTimer_Struc++ = 0x07D0; /* TER_limit */
*pTimer_Struc++ = 0x000A; /* TGT_limit */
*pTimer_Struc++ = 0x4588; /* THT_limit */
*pTimer_Struc++ = 0x1F40; /* TRR_limit */
*pTimer_Struc++ = 0x4E20; /* TVX_limit */
*pTimer_Struc++ = 0x0000; /* reserved */
}
/* Set node address. */
*pTimer_Struc++ = dev->dev_addr[0] << 8
| (dev->dev_addr[1] & 0xFF);
*pTimer_Struc++ = dev->dev_addr[2] << 8
| (dev->dev_addr[3] & 0xFF);
*pTimer_Struc++ = dev->dev_addr[4] << 8
| (dev->dev_addr[5] & 0xFF);
/* Set group address. */
*pTimer_Struc++ = tp->group_address_0 << 8
| tp->group_address_0 >> 8;
*pTimer_Struc++ = tp->group_address[0] << 8
| tp->group_address[0] >> 8;
*pTimer_Struc++ = tp->group_address[1] << 8
| tp->group_address[1] >> 8;
/* Set functional address. */
*pTimer_Struc++ = tp->functional_address_0 << 8
| tp->functional_address_0 >> 8;
*pTimer_Struc++ = tp->functional_address[0] << 8
| tp->functional_address[0] >> 8;
*pTimer_Struc++ = tp->functional_address[1] << 8
| tp->functional_address[1] >> 8;
/* Set Bit-Wise group address. */
*pTimer_Struc++ = tp->bitwise_group_address[0] << 8
| tp->bitwise_group_address[0] >> 8;
*pTimer_Struc++ = tp->bitwise_group_address[1] << 8
| tp->bitwise_group_address[1] >> 8;
/* Set ring number address. */
*pTimer_Struc++ = tp->source_ring_number;
*pTimer_Struc++ = tp->target_ring_number;
/* Physical drop number. */
*pTimer_Struc++ = (unsigned short)0;
*pTimer_Struc++ = (unsigned short)0;
/* Product instance ID. */
for(i = 0; i < 9; i++)
*pTimer_Struc++ = (unsigned short)0;
err = smctr_setup_single_cmd_w_data(dev, ACB_CMD_INIT_TRC_TIMERS, 0);
return (err);
}
static int smctr_issue_init_txrx_cmd(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
unsigned int i;
int err;
void **txrx_ptrs = (void *)tp->misc_command_data;
if((err = smctr_wait_while_cbusy(dev)))
return (err);
if((err = smctr_wait_cmd(dev)))
{
printk(KERN_ERR "%s: Hardware failure\n", dev->name);
return (err);
}
/* Initialize Transmit Queue Pointers that are used, to point to
* a single FCB.
*/
for(i = 0; i < NUM_TX_QS_USED; i++)
*txrx_ptrs++ = (void *)TRC_POINTER(tp->tx_fcb_head[i]);
/* Initialize Transmit Queue Pointers that are NOT used to ZERO. */
for(; i < MAX_TX_QS; i++)
*txrx_ptrs++ = (void *)0;
/* Initialize Receive Queue Pointers (MAC and Non-MAC) that are
* used, to point to a single FCB and a BDB chain of buffers.
*/
for(i = 0; i < NUM_RX_QS_USED; i++)
{
*txrx_ptrs++ = (void *)TRC_POINTER(tp->rx_fcb_head[i]);
*txrx_ptrs++ = (void *)TRC_POINTER(tp->rx_bdb_head[i]);
}
/* Initialize Receive Queue Pointers that are NOT used to ZERO. */
for(; i < MAX_RX_QS; i++)
{
*txrx_ptrs++ = (void *)0;
*txrx_ptrs++ = (void *)0;
}
err = smctr_setup_single_cmd_w_data(dev, ACB_CMD_INIT_TX_RX, 0);
return (err);
}
static int smctr_issue_insert_cmd(struct net_device *dev)
{
int err;
err = smctr_setup_single_cmd(dev, ACB_CMD_INSERT, ACB_SUB_CMD_NOP);
return (err);
}
static int smctr_issue_read_ring_status_cmd(struct net_device *dev)
{
int err;
if((err = smctr_wait_while_cbusy(dev)))
return (err);
if((err = smctr_wait_cmd(dev)))
return (err);
err = smctr_setup_single_cmd_w_data(dev, ACB_CMD_READ_TRC_STATUS,
RW_TRC_STATUS_BLOCK);
return (err);
}
static int smctr_issue_read_word_cmd(struct net_device *dev, __u16 aword_cnt)
{
int err;
if((err = smctr_wait_while_cbusy(dev)))
return (err);
if((err = smctr_wait_cmd(dev)))
return (err);
err = smctr_setup_single_cmd_w_data(dev, ACB_CMD_MCT_READ_VALUE,
aword_cnt);
return (err);
}
static int smctr_issue_remove_cmd(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
int err;
if((err = smctr_wait_while_cbusy(dev)))
return (err);
tp->sclb_ptr->resume_control = 0;
tp->sclb_ptr->valid_command = SCLB_VALID | SCLB_CMD_REMOVE;
smctr_set_ctrl_attention(dev);
return (0);
}
static int smctr_issue_resume_acb_cmd(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
int err;
if((err = smctr_wait_while_cbusy(dev)))
return (err);
tp->sclb_ptr->resume_control = SCLB_RC_ACB;
tp->sclb_ptr->valid_command = SCLB_VALID | SCLB_RESUME_CONTROL_VALID;
tp->acb_pending = 1;
smctr_set_ctrl_attention(dev);
return (0);
}
static int smctr_issue_resume_rx_bdb_cmd(struct net_device *dev, __u16 queue)
{
struct net_local *tp = netdev_priv(dev);
int err;
if((err = smctr_wait_while_cbusy(dev)))
return (err);
if(queue == MAC_QUEUE)
tp->sclb_ptr->resume_control = SCLB_RC_RX_MAC_BDB;
else
tp->sclb_ptr->resume_control = SCLB_RC_RX_NON_MAC_BDB;
tp->sclb_ptr->valid_command = SCLB_VALID | SCLB_RESUME_CONTROL_VALID;
smctr_set_ctrl_attention(dev);
return (0);
}
static int smctr_issue_resume_rx_fcb_cmd(struct net_device *dev, __u16 queue)
{
struct net_local *tp = netdev_priv(dev);
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_issue_resume_rx_fcb_cmd\n", dev->name);
if(smctr_wait_while_cbusy(dev))
return (-1);
if(queue == MAC_QUEUE)
tp->sclb_ptr->resume_control = SCLB_RC_RX_MAC_FCB;
else
tp->sclb_ptr->resume_control = SCLB_RC_RX_NON_MAC_FCB;
tp->sclb_ptr->valid_command = SCLB_VALID | SCLB_RESUME_CONTROL_VALID;
smctr_set_ctrl_attention(dev);
return (0);
}
static int smctr_issue_resume_tx_fcb_cmd(struct net_device *dev, __u16 queue)
{
struct net_local *tp = netdev_priv(dev);
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_issue_resume_tx_fcb_cmd\n", dev->name);
if(smctr_wait_while_cbusy(dev))
return (-1);
tp->sclb_ptr->resume_control = (SCLB_RC_TFCB0 << queue);
tp->sclb_ptr->valid_command = SCLB_RESUME_CONTROL_VALID | SCLB_VALID;
smctr_set_ctrl_attention(dev);
return (0);
}
static int smctr_issue_test_internal_rom_cmd(struct net_device *dev)
{
int err;
err = smctr_setup_single_cmd(dev, ACB_CMD_MCT_TEST,
TRC_INTERNAL_ROM_TEST);
return (err);
}
static int smctr_issue_test_hic_cmd(struct net_device *dev)
{
int err;
err = smctr_setup_single_cmd(dev, ACB_CMD_HIC_TEST,
TRC_HOST_INTERFACE_REG_TEST);
return (err);
}
static int smctr_issue_test_mac_reg_cmd(struct net_device *dev)
{
int err;
err = smctr_setup_single_cmd(dev, ACB_CMD_MCT_TEST,
TRC_MAC_REGISTERS_TEST);
return (err);
}
static int smctr_issue_trc_loopback_cmd(struct net_device *dev)
{
int err;
err = smctr_setup_single_cmd(dev, ACB_CMD_MCT_TEST,
TRC_INTERNAL_LOOPBACK);
return (err);
}
static int smctr_issue_tri_loopback_cmd(struct net_device *dev)
{
int err;
err = smctr_setup_single_cmd(dev, ACB_CMD_MCT_TEST,
TRC_TRI_LOOPBACK);
return (err);
}
static int smctr_issue_write_byte_cmd(struct net_device *dev,
short aword_cnt, void *byte)
{
struct net_local *tp = netdev_priv(dev);
unsigned int iword, ibyte;
int err;
if((err = smctr_wait_while_cbusy(dev)))
return (err);
if((err = smctr_wait_cmd(dev)))
return (err);
for(iword = 0, ibyte = 0; iword < (unsigned int)(aword_cnt & 0xff);
iword++, ibyte += 2)
{
tp->misc_command_data[iword] = (*((__u8 *)byte + ibyte) << 8)
| (*((__u8 *)byte + ibyte + 1));
}
return (smctr_setup_single_cmd_w_data(dev, ACB_CMD_MCT_WRITE_VALUE,
aword_cnt));
}
static int smctr_issue_write_word_cmd(struct net_device *dev,
short aword_cnt, void *word)
{
struct net_local *tp = netdev_priv(dev);
unsigned int i, err;
if((err = smctr_wait_while_cbusy(dev)))
return (err);
if((err = smctr_wait_cmd(dev)))
return (err);
for(i = 0; i < (unsigned int)(aword_cnt & 0xff); i++)
tp->misc_command_data[i] = *((__u16 *)word + i);
err = smctr_setup_single_cmd_w_data(dev, ACB_CMD_MCT_WRITE_VALUE,
aword_cnt);
return (err);
}
static int smctr_join_complete_state(struct net_device *dev)
{
int err;
err = smctr_setup_single_cmd(dev, ACB_CMD_CHANGE_JOIN_STATE,
JS_JOIN_COMPLETE_STATE);
return (err);
}
static int smctr_link_tx_fcbs_to_bdbs(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
unsigned int i, j;
FCBlock *fcb;
BDBlock *bdb;
for(i = 0; i < NUM_TX_QS_USED; i++)
{
fcb = tp->tx_fcb_head[i];
bdb = tp->tx_bdb_head[i];
for(j = 0; j < tp->num_tx_fcbs[i]; j++)
{
fcb->bdb_ptr = bdb;
fcb->trc_bdb_ptr = TRC_POINTER(bdb);
fcb = (FCBlock *)((char *)fcb + sizeof(FCBlock));
bdb = (BDBlock *)((char *)bdb + sizeof(BDBlock));
}
}
return (0);
}
static int smctr_load_firmware(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
const struct firmware *fw;
__u16 i, checksum = 0;
int err = 0;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_load_firmware\n", dev->name);
if (request_firmware(&fw, "tr_smctr.bin", &dev->dev)) {
printk(KERN_ERR "%s: firmware not found\n", dev->name);
return (UCODE_NOT_PRESENT);
}
tp->num_of_tx_buffs = 4;
tp->mode_bits |= UMAC;
tp->receive_mask = 0;
tp->max_packet_size = 4177;
/* Can only upload the firmware once per adapter reset. */
if (tp->microcode_version != 0) {
err = (UCODE_PRESENT);
goto out;
}
/* Verify the firmware exists and is there in the right amount. */
if (!fw->data
|| (*(fw->data + UCODE_VERSION_OFFSET) < UCODE_VERSION))
{
err = (UCODE_NOT_PRESENT);
goto out;
}
/* UCODE_SIZE is not included in Checksum. */
for(i = 0; i < *((__u16 *)(fw->data + UCODE_SIZE_OFFSET)); i += 2)
checksum += *((__u16 *)(fw->data + 2 + i));
if (checksum) {
err = (UCODE_NOT_PRESENT);
goto out;
}
/* At this point we have a valid firmware image, lets kick it on up. */
smctr_enable_adapter_ram(dev);
smctr_enable_16bit(dev);
smctr_set_page(dev, (__u8 *)tp->ram_access);
if((smctr_checksum_firmware(dev))
|| (*(fw->data + UCODE_VERSION_OFFSET)
> tp->microcode_version))
{
smctr_enable_adapter_ctrl_store(dev);
/* Zero out ram space for firmware. */
for(i = 0; i < CS_RAM_SIZE; i += 2)
*((__u16 *)(tp->ram_access + i)) = 0;
smctr_decode_firmware(dev, fw);
tp->microcode_version = *(fw->data + UCODE_VERSION_OFFSET); *((__u16 *)(tp->ram_access + CS_RAM_VERSION_OFFSET))
= (tp->microcode_version << 8);
*((__u16 *)(tp->ram_access + CS_RAM_CHECKSUM_OFFSET))
= ~(tp->microcode_version << 8) + 1;
smctr_disable_adapter_ctrl_store(dev);
if(smctr_checksum_firmware(dev))
err = HARDWARE_FAILED;
}
else
err = UCODE_PRESENT;
smctr_disable_16bit(dev);
out:
release_firmware(fw);
return (err);
}
static int smctr_load_node_addr(struct net_device *dev)
{
int ioaddr = dev->base_addr;
unsigned int i;
__u8 r;
for(i = 0; i < 6; i++)
{
r = inb(ioaddr + LAR0 + i);
dev->dev_addr[i] = (char)r;
}
dev->addr_len = 6;
return (0);
}
/* Lobe Media Test.
* During the transmission of the initial 1500 lobe media MAC frames,
* the phase lock loop in the 805 chip may lock, and then un-lock, causing
* the 825 to go into a PURGE state. When performing a PURGE, the MCT
* microcode will not transmit any frames given to it by the host, and
* will consequently cause a timeout.
*
* NOTE 1: If the monitor_state is MS_BEACON_TEST_STATE, all transmit
* queues other then the one used for the lobe_media_test should be
* disabled.!?
*
* NOTE 2: If the monitor_state is MS_BEACON_TEST_STATE and the receive_mask
* has any multi-cast or promiscous bits set, the receive_mask needs to
* be changed to clear the multi-cast or promiscous mode bits, the lobe_test
* run, and then the receive mask set back to its original value if the test
* is successful.
*/
static int smctr_lobe_media_test(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
unsigned int i, perror = 0;
unsigned short saved_rcv_mask;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_lobe_media_test\n", dev->name);
/* Clear receive mask for lobe test. */
saved_rcv_mask = tp->receive_mask;
tp->receive_mask = 0;
smctr_chg_rx_mask(dev);
/* Setup the lobe media test. */
smctr_lobe_media_test_cmd(dev);
if(smctr_wait_cmd(dev))
{
smctr_reset_adapter(dev);
tp->status = CLOSED;
return (LOBE_MEDIA_TEST_FAILED);
}
/* Tx lobe media test frames. */
for(i = 0; i < 1500; ++i)
{
if(smctr_send_lobe_media_test(dev))
{
if(perror)
{
smctr_reset_adapter(dev);
tp->state = CLOSED;
return (LOBE_MEDIA_TEST_FAILED);
}
else
{
perror = 1;
if(smctr_lobe_media_test_cmd(dev))
{
smctr_reset_adapter(dev);
tp->state = CLOSED;
return (LOBE_MEDIA_TEST_FAILED);
}
}
}
}
if(smctr_send_dat(dev))
{
if(smctr_send_dat(dev))
{
smctr_reset_adapter(dev);
tp->state = CLOSED;
return (LOBE_MEDIA_TEST_FAILED);
}
}
/* Check if any frames received during test. */
if((tp->rx_fcb_curr[MAC_QUEUE]->frame_status)
|| (tp->rx_fcb_curr[NON_MAC_QUEUE]->frame_status))
{
smctr_reset_adapter(dev);
tp->state = CLOSED;
return (LOBE_MEDIA_TEST_FAILED);
}
/* Set receive mask to "Promisc" mode. */
tp->receive_mask = saved_rcv_mask;
smctr_chg_rx_mask(dev);
return (0);
}
static int smctr_lobe_media_test_cmd(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
int err;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_lobe_media_test_cmd\n", dev->name);
/* Change to lobe media test state. */
if(tp->monitor_state != MS_BEACON_TEST_STATE)
{
smctr_lobe_media_test_state(dev);
if(smctr_wait_cmd(dev))
{
printk(KERN_ERR "Lobe Failed test state\n");
return (LOBE_MEDIA_TEST_FAILED);
}
}
err = smctr_setup_single_cmd(dev, ACB_CMD_MCT_TEST,
TRC_LOBE_MEDIA_TEST);
return (err);
}
static int smctr_lobe_media_test_state(struct net_device *dev)
{
int err;
err = smctr_setup_single_cmd(dev, ACB_CMD_CHANGE_JOIN_STATE,
JS_LOBE_TEST_STATE);
return (err);
}
static int smctr_make_8025_hdr(struct net_device *dev,
MAC_HEADER *rmf, MAC_HEADER *tmf, __u16 ac_fc)
{
tmf->ac = MSB(ac_fc); /* msb is access control */
tmf->fc = LSB(ac_fc); /* lsb is frame control */
tmf->sa[0] = dev->dev_addr[0];
tmf->sa[1] = dev->dev_addr[1];
tmf->sa[2] = dev->dev_addr[2];
tmf->sa[3] = dev->dev_addr[3];
tmf->sa[4] = dev->dev_addr[4];
tmf->sa[5] = dev->dev_addr[5];
switch(tmf->vc)
{
/* Send RQ_INIT to RPS */
case RQ_INIT:
tmf->da[0] = 0xc0;
tmf->da[1] = 0x00;
tmf->da[2] = 0x00;
tmf->da[3] = 0x00;
tmf->da[4] = 0x00;
tmf->da[5] = 0x02;
break;
/* Send RPT_TX_FORWARD to CRS */
case RPT_TX_FORWARD:
tmf->da[0] = 0xc0;
tmf->da[1] = 0x00;
tmf->da[2] = 0x00;
tmf->da[3] = 0x00;
tmf->da[4] = 0x00;
tmf->da[5] = 0x10;
break;
/* Everything else goes to sender */
default:
tmf->da[0] = rmf->sa[0];
tmf->da[1] = rmf->sa[1];
tmf->da[2] = rmf->sa[2];
tmf->da[3] = rmf->sa[3];
tmf->da[4] = rmf->sa[4];
tmf->da[5] = rmf->sa[5];
break;
}
return (0);
}
static int smctr_make_access_pri(struct net_device *dev, MAC_SUB_VECTOR *tsv)
{
struct net_local *tp = netdev_priv(dev);
tsv->svi = AUTHORIZED_ACCESS_PRIORITY;
tsv->svl = S_AUTHORIZED_ACCESS_PRIORITY;
tsv->svv[0] = MSB(tp->authorized_access_priority);
tsv->svv[1] = LSB(tp->authorized_access_priority);
return (0);
}
static int smctr_make_addr_mod(struct net_device *dev, MAC_SUB_VECTOR *tsv)
{
tsv->svi = ADDRESS_MODIFER;
tsv->svl = S_ADDRESS_MODIFER;
tsv->svv[0] = 0;
tsv->svv[1] = 0;
return (0);
}
static int smctr_make_auth_funct_class(struct net_device *dev,
MAC_SUB_VECTOR *tsv)
{
struct net_local *tp = netdev_priv(dev);
tsv->svi = AUTHORIZED_FUNCTION_CLASS;
tsv->svl = S_AUTHORIZED_FUNCTION_CLASS;
tsv->svv[0] = MSB(tp->authorized_function_classes);
tsv->svv[1] = LSB(tp->authorized_function_classes);
return (0);
}
static int smctr_make_corr(struct net_device *dev,
MAC_SUB_VECTOR *tsv, __u16 correlator)
{
tsv->svi = CORRELATOR;
tsv->svl = S_CORRELATOR;
tsv->svv[0] = MSB(correlator);
tsv->svv[1] = LSB(correlator);
return (0);
}
static int smctr_make_funct_addr(struct net_device *dev, MAC_SUB_VECTOR *tsv)
{
struct net_local *tp = netdev_priv(dev);
smctr_get_functional_address(dev);
tsv->svi = FUNCTIONAL_ADDRESS;
tsv->svl = S_FUNCTIONAL_ADDRESS;
tsv->svv[0] = MSB(tp->misc_command_data[0]);
tsv->svv[1] = LSB(tp->misc_command_data[0]);
tsv->svv[2] = MSB(tp->misc_command_data[1]);
tsv->svv[3] = LSB(tp->misc_command_data[1]);
return (0);
}
static int smctr_make_group_addr(struct net_device *dev, MAC_SUB_VECTOR *tsv)
{
struct net_local *tp = netdev_priv(dev);
smctr_get_group_address(dev);
tsv->svi = GROUP_ADDRESS;
tsv->svl = S_GROUP_ADDRESS;
tsv->svv[0] = MSB(tp->misc_command_data[0]);
tsv->svv[1] = LSB(tp->misc_command_data[0]);
tsv->svv[2] = MSB(tp->misc_command_data[1]);
tsv->svv[3] = LSB(tp->misc_command_data[1]);
/* Set Group Address Sub-vector to all zeros if only the
* Group Address/Functional Address Indicator is set.
*/
if(tsv->svv[0] == 0x80 && tsv->svv[1] == 0x00
&& tsv->svv[2] == 0x00 && tsv->svv[3] == 0x00)
tsv->svv[0] = 0x00;
return (0);
}
static int smctr_make_phy_drop_num(struct net_device *dev,
MAC_SUB_VECTOR *tsv)
{
struct net_local *tp = netdev_priv(dev);
smctr_get_physical_drop_number(dev);
tsv->svi = PHYSICAL_DROP;
tsv->svl = S_PHYSICAL_DROP;
tsv->svv[0] = MSB(tp->misc_command_data[0]);
tsv->svv[1] = LSB(tp->misc_command_data[0]);
tsv->svv[2] = MSB(tp->misc_command_data[1]);
tsv->svv[3] = LSB(tp->misc_command_data[1]);
return (0);
}
static int smctr_make_product_id(struct net_device *dev, MAC_SUB_VECTOR *tsv)
{
int i;
tsv->svi = PRODUCT_INSTANCE_ID;
tsv->svl = S_PRODUCT_INSTANCE_ID;
for(i = 0; i < 18; i++)
tsv->svv[i] = 0xF0;
return (0);
}
static int smctr_make_station_id(struct net_device *dev, MAC_SUB_VECTOR *tsv)
{
struct net_local *tp = netdev_priv(dev);
smctr_get_station_id(dev);
tsv->svi = STATION_IDENTIFER;
tsv->svl = S_STATION_IDENTIFER;
tsv->svv[0] = MSB(tp->misc_command_data[0]);
tsv->svv[1] = LSB(tp->misc_command_data[0]);
tsv->svv[2] = MSB(tp->misc_command_data[1]);
tsv->svv[3] = LSB(tp->misc_command_data[1]);
tsv->svv[4] = MSB(tp->misc_command_data[2]);
tsv->svv[5] = LSB(tp->misc_command_data[2]);
return (0);
}
static int smctr_make_ring_station_status(struct net_device *dev,
MAC_SUB_VECTOR * tsv)
{
tsv->svi = RING_STATION_STATUS;
tsv->svl = S_RING_STATION_STATUS;
tsv->svv[0] = 0;
tsv->svv[1] = 0;
tsv->svv[2] = 0;
tsv->svv[3] = 0;
tsv->svv[4] = 0;
tsv->svv[5] = 0;
return (0);
}
static int smctr_make_ring_station_version(struct net_device *dev,
MAC_SUB_VECTOR *tsv)
{
struct net_local *tp = netdev_priv(dev);
tsv->svi = RING_STATION_VERSION_NUMBER;
tsv->svl = S_RING_STATION_VERSION_NUMBER;
tsv->svv[0] = 0xe2; /* EBCDIC - S */
tsv->svv[1] = 0xd4; /* EBCDIC - M */
tsv->svv[2] = 0xc3; /* EBCDIC - C */
tsv->svv[3] = 0x40; /* EBCDIC - */
tsv->svv[4] = 0xe5; /* EBCDIC - V */
tsv->svv[5] = 0xF0 + (tp->microcode_version >> 4);
tsv->svv[6] = 0xF0 + (tp->microcode_version & 0x0f);
tsv->svv[7] = 0x40; /* EBCDIC - */
tsv->svv[8] = 0xe7; /* EBCDIC - X */
if(tp->extra_info & CHIP_REV_MASK)
tsv->svv[9] = 0xc5; /* EBCDIC - E */
else
tsv->svv[9] = 0xc4; /* EBCDIC - D */
return (0);
}
static int smctr_make_tx_status_code(struct net_device *dev,
MAC_SUB_VECTOR *tsv, __u16 tx_fstatus)
{
tsv->svi = TRANSMIT_STATUS_CODE;
tsv->svl = S_TRANSMIT_STATUS_CODE;
tsv->svv[0] = ((tx_fstatus & 0x0100 >> 6) | IBM_PASS_SOURCE_ADDR);
/* Stripped frame status of Transmitted Frame */
tsv->svv[1] = tx_fstatus & 0xff;
return (0);
}
static int smctr_make_upstream_neighbor_addr(struct net_device *dev,
MAC_SUB_VECTOR *tsv)
{
struct net_local *tp = netdev_priv(dev);
smctr_get_upstream_neighbor_addr(dev);
tsv->svi = UPSTREAM_NEIGHBOR_ADDRESS;
tsv->svl = S_UPSTREAM_NEIGHBOR_ADDRESS;
tsv->svv[0] = MSB(tp->misc_command_data[0]);
tsv->svv[1] = LSB(tp->misc_command_data[0]);
tsv->svv[2] = MSB(tp->misc_command_data[1]);
tsv->svv[3] = LSB(tp->misc_command_data[1]);
tsv->svv[4] = MSB(tp->misc_command_data[2]);
tsv->svv[5] = LSB(tp->misc_command_data[2]);
return (0);
}
static int smctr_make_wrap_data(struct net_device *dev, MAC_SUB_VECTOR *tsv)
{
tsv->svi = WRAP_DATA;
tsv->svl = S_WRAP_DATA;
return (0);
}
/*
* Open/initialize the board. This is called sometime after
* booting when the 'ifconfig' program is run.
*
* This routine should set everything up anew at each open, even
* registers that "should" only need to be set once at boot, so that
* there is non-reboot way to recover if something goes wrong.
*/
static int smctr_open(struct net_device *dev)
{
int err;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_open\n", dev->name);
err = smctr_init_adapter(dev);
if(err < 0)
return (err);
return (err);
}
/* Interrupt driven open of Token card. */
static int smctr_open_tr(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
unsigned long flags;
int err;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_open_tr\n", dev->name);
/* Now we can actually open the adapter. */
if(tp->status == OPEN)
return (0);
if(tp->status != INITIALIZED)
return (-1);
/* FIXME: it would work a lot better if we masked the irq sources
on the card here, then we could skip the locking and poll nicely */
spin_lock_irqsave(&tp->lock, flags);
smctr_set_page(dev, (__u8 *)tp->ram_access);
if((err = smctr_issue_resume_rx_fcb_cmd(dev, (short)MAC_QUEUE)))
goto out;
if((err = smctr_issue_resume_rx_bdb_cmd(dev, (short)MAC_QUEUE)))
goto out;
if((err = smctr_issue_resume_rx_fcb_cmd(dev, (short)NON_MAC_QUEUE)))
goto out;
if((err = smctr_issue_resume_rx_bdb_cmd(dev, (short)NON_MAC_QUEUE)))
goto out;
tp->status = CLOSED;
/* Insert into the Ring or Enter Loopback Mode. */
if((tp->mode_bits & LOOPING_MODE_MASK) == LOOPBACK_MODE_1)
{
tp->status = CLOSED;
if(!(err = smctr_issue_trc_loopback_cmd(dev)))
{
if(!(err = smctr_wait_cmd(dev)))
tp->status = OPEN;
}
smctr_status_chg(dev);
}
else
{
if((tp->mode_bits & LOOPING_MODE_MASK) == LOOPBACK_MODE_2)
{
tp->status = CLOSED;
if(!(err = smctr_issue_tri_loopback_cmd(dev)))
{
if(!(err = smctr_wait_cmd(dev)))
tp->status = OPEN;
}
smctr_status_chg(dev);
}
else
{
if((tp->mode_bits & LOOPING_MODE_MASK)
== LOOPBACK_MODE_3)
{
tp->status = CLOSED;
if(!(err = smctr_lobe_media_test_cmd(dev)))
{
if(!(err = smctr_wait_cmd(dev)))
tp->status = OPEN;
}
smctr_status_chg(dev);
}
else
{
if(!(err = smctr_lobe_media_test(dev)))
err = smctr_issue_insert_cmd(dev);
else
{
if(err == LOBE_MEDIA_TEST_FAILED)
printk(KERN_WARNING "%s: Lobe Media Test Failure - Check cable?\n", dev->name);
}
}
}
}
out:
spin_unlock_irqrestore(&tp->lock, flags);
return (err);
}
/* Check for a network adapter of this type,
* and return device structure if one exists.
*/
struct net_device __init *smctr_probe(int unit)
{
struct net_device *dev = alloc_trdev(sizeof(struct net_local));
static const unsigned ports[] = {
0x200, 0x220, 0x240, 0x260, 0x280, 0x2A0, 0x2C0, 0x2E0, 0x300,
0x320, 0x340, 0x360, 0x380, 0
};
const unsigned *port;
int err = 0;
if (!dev)
return ERR_PTR(-ENOMEM);
if (unit >= 0) {
sprintf(dev->name, "tr%d", unit);
netdev_boot_setup_check(dev);
}
if (dev->base_addr > 0x1ff) /* Check a single specified location. */
err = smctr_probe1(dev, dev->base_addr);
else if(dev->base_addr != 0) /* Don't probe at all. */
err =-ENXIO;
else {
for (port = ports; *port; port++) {
err = smctr_probe1(dev, *port);
if (!err)
break;
}
}
if (err)
goto out;
err = register_netdev(dev);
if (err)
goto out1;
return dev;
out1:
#ifdef CONFIG_MCA_LEGACY
{ struct net_local *tp = netdev_priv(dev);
if (tp->slot_num)
mca_mark_as_unused(tp->slot_num);
}
#endif
release_region(dev->base_addr, SMCTR_IO_EXTENT);
free_irq(dev->irq, dev);
out:
free_netdev(dev);
return ERR_PTR(err);
}
static int __init smctr_probe1(struct net_device *dev, int ioaddr)
{
static unsigned version_printed;
struct net_local *tp = netdev_priv(dev);
int err;
__u32 *ram;
if(smctr_debug && version_printed++ == 0)
printk(version);
spin_lock_init(&tp->lock);
dev->base_addr = ioaddr;
/* Actually detect an adapter now. */
err = smctr_chk_isa(dev);
if(err < 0)
{
if ((err = smctr_chk_mca(dev)) < 0) {
err = -ENODEV;
goto out;
}
}
tp = netdev_priv(dev);
dev->mem_start = tp->ram_base;
dev->mem_end = dev->mem_start + 0x10000;
ram = (__u32 *)phys_to_virt(dev->mem_start);
tp->ram_access = *(__u32 *)&ram;
tp->status = NOT_INITIALIZED;
err = smctr_load_firmware(dev);
if(err != UCODE_PRESENT && err != SUCCESS)
{
printk(KERN_ERR "%s: Firmware load failed (%d)\n", dev->name, err);
err = -EIO;
goto out;
}
/* Allow user to specify ring speed on module insert. */
if(ringspeed == 4)
tp->media_type = MEDIA_UTP_4;
else
tp->media_type = MEDIA_UTP_16;
printk(KERN_INFO "%s: %s %s at Io %#4x, Irq %d, Rom %#4x, Ram %#4x.\n",
dev->name, smctr_name, smctr_model,
(unsigned int)dev->base_addr,
dev->irq, tp->rom_base, tp->ram_base);
dev->open = smctr_open;
dev->stop = smctr_close;
dev->hard_start_xmit = smctr_send_packet;
dev->tx_timeout = smctr_timeout;
dev->watchdog_timeo = HZ;
dev->get_stats = smctr_get_stats;
dev->set_multicast_list = &smctr_set_multicast_list;
return (0);
out:
return err;
}
static int smctr_process_rx_packet(MAC_HEADER *rmf, __u16 size,
struct net_device *dev, __u16 rx_status)
{
struct net_local *tp = netdev_priv(dev);
struct sk_buff *skb;
__u16 rcode, correlator;
int err = 0;
__u8 xframe = 1;
rmf->vl = SWAP_BYTES(rmf->vl);
if(rx_status & FCB_RX_STATUS_DA_MATCHED)
{
switch(rmf->vc)
{
/* Received MAC Frames Processed by RS. */
case INIT:
if((rcode = smctr_rcv_init(dev, rmf, &correlator)) == HARDWARE_FAILED)
{
return (rcode);
}
if((err = smctr_send_rsp(dev, rmf, rcode,
correlator)))
{
return (err);
}
break;
case CHG_PARM:
if((rcode = smctr_rcv_chg_param(dev, rmf,
&correlator)) ==HARDWARE_FAILED)
{
return (rcode);
}
if((err = smctr_send_rsp(dev, rmf, rcode,
correlator)))
{
return (err);
}
break;
case RQ_ADDR:
if((rcode = smctr_rcv_rq_addr_state_attch(dev,
rmf, &correlator)) != POSITIVE_ACK)
{
if(rcode == HARDWARE_FAILED)
return (rcode);
else
return (smctr_send_rsp(dev, rmf,
rcode, correlator));
}
if((err = smctr_send_rpt_addr(dev, rmf,
correlator)))
{
return (err);
}
break;
case RQ_ATTCH:
if((rcode = smctr_rcv_rq_addr_state_attch(dev,
rmf, &correlator)) != POSITIVE_ACK)
{
if(rcode == HARDWARE_FAILED)
return (rcode);
else
return (smctr_send_rsp(dev, rmf,
rcode,
correlator));
}
if((err = smctr_send_rpt_attch(dev, rmf,
correlator)))
{
return (err);
}
break;
case RQ_STATE:
if((rcode = smctr_rcv_rq_addr_state_attch(dev,
rmf, &correlator)) != POSITIVE_ACK)
{
if(rcode == HARDWARE_FAILED)
return (rcode);
else
return (smctr_send_rsp(dev, rmf,
rcode,
correlator));
}
if((err = smctr_send_rpt_state(dev, rmf,
correlator)))
{
return (err);
}
break;
case TX_FORWARD: {
__u16 uninitialized_var(tx_fstatus);
if((rcode = smctr_rcv_tx_forward(dev, rmf))
!= POSITIVE_ACK)
{
if(rcode == HARDWARE_FAILED)
return (rcode);
else
return (smctr_send_rsp(dev, rmf,
rcode,
correlator));
}
if((err = smctr_send_tx_forward(dev, rmf,
&tx_fstatus)) == HARDWARE_FAILED)
{
return (err);
}
if(err == A_FRAME_WAS_FORWARDED)
{
if((err = smctr_send_rpt_tx_forward(dev,
rmf, tx_fstatus))
== HARDWARE_FAILED)
{
return (err);
}
}
break;
}
/* Received MAC Frames Processed by CRS/REM/RPS. */
case RSP:
case RQ_INIT:
case RPT_NEW_MON:
case RPT_SUA_CHG:
case RPT_ACTIVE_ERR:
case RPT_NN_INCMP:
case RPT_ERROR:
case RPT_ATTCH:
case RPT_STATE:
case RPT_ADDR:
break;
/* Rcvd Att. MAC Frame (if RXATMAC set) or UNKNOWN */
default:
xframe = 0;
if(!(tp->receive_mask & ACCEPT_ATT_MAC_FRAMES))
{
rcode = smctr_rcv_unknown(dev, rmf,
&correlator);
if((err = smctr_send_rsp(dev, rmf,rcode,
correlator)))
{
return (err);
}
}
break;
}
}
else
{
/* 1. DA doesn't match (Promiscuous Mode).
* 2. Parse for Extended MAC Frame Type.
*/
switch(rmf->vc)
{
case RSP:
case INIT:
case RQ_INIT:
case RQ_ADDR:
case RQ_ATTCH:
case RQ_STATE:
case CHG_PARM:
case RPT_ADDR:
case RPT_ERROR:
case RPT_ATTCH:
case RPT_STATE:
case RPT_NEW_MON:
case RPT_SUA_CHG:
case RPT_NN_INCMP:
case RPT_ACTIVE_ERR:
break;
default:
xframe = 0;
break;
}
}
/* NOTE: UNKNOWN MAC frames will NOT be passed up unless
* ACCEPT_ATT_MAC_FRAMES is set.
*/
if(((tp->receive_mask & ACCEPT_ATT_MAC_FRAMES)
&& (xframe == (__u8)0))
|| ((tp->receive_mask & ACCEPT_EXT_MAC_FRAMES)
&& (xframe == (__u8)1)))
{
rmf->vl = SWAP_BYTES(rmf->vl);
if (!(skb = dev_alloc_skb(size)))
return -ENOMEM;
skb->len = size;
/* Slide data into a sleek skb. */
skb_put(skb, skb->len);
skb_copy_to_linear_data(skb, rmf, skb->len);
/* Update Counters */
tp->MacStat.rx_packets++;
tp->MacStat.rx_bytes += skb->len;
/* Kick the packet on up. */
skb->protocol = tr_type_trans(skb, dev);
netif_rx(skb);
err = 0;
}
return (err);
}
/* Adapter RAM test. Incremental word ODD boundary data test. */
static int smctr_ram_memory_test(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
__u16 page, pages_of_ram, start_pattern = 0, word_pattern = 0,
word_read = 0, err_word = 0, err_pattern = 0;
unsigned int err_offset;
__u32 j, pword;
__u8 err = 0;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_ram_memory_test\n", dev->name);
start_pattern = 0x0001;
pages_of_ram = tp->ram_size / tp->ram_usable;
pword = tp->ram_access;
/* Incremental word ODD boundary test. */
for(page = 0; (page < pages_of_ram) && (~err);
page++, start_pattern += 0x8000)
{
smctr_set_page(dev, (__u8 *)(tp->ram_access
+ (page * tp->ram_usable * 1024) + 1));
word_pattern = start_pattern;
for(j = 1; j < (__u32)(tp->ram_usable * 1024) - 1; j += 2)
*(__u16 *)(pword + j) = word_pattern++;
word_pattern = start_pattern;
for(j = 1; j < (__u32)(tp->ram_usable * 1024) - 1
&& (~err); j += 2, word_pattern++)
{
word_read = *(__u16 *)(pword + j);
if(word_read != word_pattern)
{
err = (__u8)1;
err_offset = j;
err_word = word_read;
err_pattern = word_pattern;
return (RAM_TEST_FAILED);
}
}
}
/* Zero out memory. */
for(page = 0; page < pages_of_ram && (~err); page++)
{
smctr_set_page(dev, (__u8 *)(tp->ram_access
+ (page * tp->ram_usable * 1024)));
word_pattern = 0;
for(j = 0; j < (__u32)tp->ram_usable * 1024; j +=2)
*(__u16 *)(pword + j) = word_pattern;
for(j =0; j < (__u32)tp->ram_usable * 1024
&& (~err); j += 2)
{
word_read = *(__u16 *)(pword + j);
if(word_read != word_pattern)
{
err = (__u8)1;
err_offset = j;
err_word = word_read;
err_pattern = word_pattern;
return (RAM_TEST_FAILED);
}
}
}
smctr_set_page(dev, (__u8 *)tp->ram_access);
return (0);
}
static int smctr_rcv_chg_param(struct net_device *dev, MAC_HEADER *rmf,
__u16 *correlator)
{
MAC_SUB_VECTOR *rsv;
signed short vlen;
__u16 rcode = POSITIVE_ACK;
unsigned int svectors = F_NO_SUB_VECTORS_FOUND;
/* This Frame can only come from a CRS */
if((rmf->dc_sc & SC_MASK) != SC_CRS)
return(E_INAPPROPRIATE_SOURCE_CLASS);
/* Remove MVID Length from total length. */
vlen = (signed short)rmf->vl - 4;
/* Point to First SVID */
rsv = (MAC_SUB_VECTOR *)((__u32)rmf + sizeof(MAC_HEADER));
/* Search for Appropriate SVID's. */
while((vlen > 0) && (rcode == POSITIVE_ACK))
{
switch(rsv->svi)
{
case CORRELATOR:
svectors |= F_CORRELATOR;
rcode = smctr_set_corr(dev, rsv, correlator);
break;
case LOCAL_RING_NUMBER:
svectors |= F_LOCAL_RING_NUMBER;
rcode = smctr_set_local_ring_num(dev, rsv);
break;
case ASSIGN_PHYSICAL_DROP:
svectors |= F_ASSIGN_PHYSICAL_DROP;
rcode = smctr_set_phy_drop(dev, rsv);
break;
case ERROR_TIMER_VALUE:
svectors |= F_ERROR_TIMER_VALUE;
rcode = smctr_set_error_timer_value(dev, rsv);
break;
case AUTHORIZED_FUNCTION_CLASS:
svectors |= F_AUTHORIZED_FUNCTION_CLASS;
rcode = smctr_set_auth_funct_class(dev, rsv);
break;
case AUTHORIZED_ACCESS_PRIORITY:
svectors |= F_AUTHORIZED_ACCESS_PRIORITY;
rcode = smctr_set_auth_access_pri(dev, rsv);
break;
default:
rcode = E_SUB_VECTOR_UNKNOWN;
break;
}
/* Let Sender Know if SUM of SV length's is
* larger then length in MVID length field
*/
if((vlen -= rsv->svl) < 0)
rcode = E_VECTOR_LENGTH_ERROR;
rsv = (MAC_SUB_VECTOR *)((__u32)rsv + rsv->svl);
}
if(rcode == POSITIVE_ACK)
{
/* Let Sender Know if MVID length field
* is larger then SUM of SV length's
*/
if(vlen != 0)
rcode = E_VECTOR_LENGTH_ERROR;
else
{
/* Let Sender Know if Expected SVID Missing */
if((svectors & R_CHG_PARM) ^ R_CHG_PARM)
rcode = E_MISSING_SUB_VECTOR;
}
}
return (rcode);
}
static int smctr_rcv_init(struct net_device *dev, MAC_HEADER *rmf,
__u16 *correlator)
{
MAC_SUB_VECTOR *rsv;
signed short vlen;
__u16 rcode = POSITIVE_ACK;
unsigned int svectors = F_NO_SUB_VECTORS_FOUND;
/* This Frame can only come from a RPS */
if((rmf->dc_sc & SC_MASK) != SC_RPS)
return (E_INAPPROPRIATE_SOURCE_CLASS);
/* Remove MVID Length from total length. */
vlen = (signed short)rmf->vl - 4;
/* Point to First SVID */
rsv = (MAC_SUB_VECTOR *)((__u32)rmf + sizeof(MAC_HEADER));
/* Search for Appropriate SVID's */
while((vlen > 0) && (rcode == POSITIVE_ACK))
{
switch(rsv->svi)
{
case CORRELATOR:
svectors |= F_CORRELATOR;
rcode = smctr_set_corr(dev, rsv, correlator);
break;
case LOCAL_RING_NUMBER:
svectors |= F_LOCAL_RING_NUMBER;
rcode = smctr_set_local_ring_num(dev, rsv);
break;
case ASSIGN_PHYSICAL_DROP:
svectors |= F_ASSIGN_PHYSICAL_DROP;
rcode = smctr_set_phy_drop(dev, rsv);
break;
case ERROR_TIMER_VALUE:
svectors |= F_ERROR_TIMER_VALUE;
rcode = smctr_set_error_timer_value(dev, rsv);
break;
default:
rcode = E_SUB_VECTOR_UNKNOWN;
break;
}
/* Let Sender Know if SUM of SV length's is
* larger then length in MVID length field
*/
if((vlen -= rsv->svl) < 0)
rcode = E_VECTOR_LENGTH_ERROR;
rsv = (MAC_SUB_VECTOR *)((__u32)rsv + rsv->svl);
}
if(rcode == POSITIVE_ACK)
{
/* Let Sender Know if MVID length field
* is larger then SUM of SV length's
*/
if(vlen != 0)
rcode = E_VECTOR_LENGTH_ERROR;
else
{
/* Let Sender Know if Expected SV Missing */
if((svectors & R_INIT) ^ R_INIT)
rcode = E_MISSING_SUB_VECTOR;
}
}
return (rcode);
}
static int smctr_rcv_tx_forward(struct net_device *dev, MAC_HEADER *rmf)
{
MAC_SUB_VECTOR *rsv;
signed short vlen;
__u16 rcode = POSITIVE_ACK;
unsigned int svectors = F_NO_SUB_VECTORS_FOUND;
/* This Frame can only come from a CRS */
if((rmf->dc_sc & SC_MASK) != SC_CRS)
return (E_INAPPROPRIATE_SOURCE_CLASS);
/* Remove MVID Length from total length */
vlen = (signed short)rmf->vl - 4;
/* Point to First SVID */
rsv = (MAC_SUB_VECTOR *)((__u32)rmf + sizeof(MAC_HEADER));
/* Search for Appropriate SVID's */
while((vlen > 0) && (rcode == POSITIVE_ACK))
{
switch(rsv->svi)
{
case FRAME_FORWARD:
svectors |= F_FRAME_FORWARD;
rcode = smctr_set_frame_forward(dev, rsv,
rmf->dc_sc);
break;
default:
rcode = E_SUB_VECTOR_UNKNOWN;
break;
}
/* Let Sender Know if SUM of SV length's is
* larger then length in MVID length field
*/
if((vlen -= rsv->svl) < 0)
rcode = E_VECTOR_LENGTH_ERROR;
rsv = (MAC_SUB_VECTOR *)((__u32)rsv + rsv->svl);
}
if(rcode == POSITIVE_ACK)
{
/* Let Sender Know if MVID length field
* is larger then SUM of SV length's
*/
if(vlen != 0)
rcode = E_VECTOR_LENGTH_ERROR;
else
{
/* Let Sender Know if Expected SV Missing */
if((svectors & R_TX_FORWARD) ^ R_TX_FORWARD)
rcode = E_MISSING_SUB_VECTOR;
}
}
return (rcode);
}
static int smctr_rcv_rq_addr_state_attch(struct net_device *dev,
MAC_HEADER *rmf, __u16 *correlator)
{
MAC_SUB_VECTOR *rsv;
signed short vlen;
__u16 rcode = POSITIVE_ACK;
unsigned int svectors = F_NO_SUB_VECTORS_FOUND;
/* Remove MVID Length from total length */
vlen = (signed short)rmf->vl - 4;
/* Point to First SVID */
rsv = (MAC_SUB_VECTOR *)((__u32)rmf + sizeof(MAC_HEADER));
/* Search for Appropriate SVID's */
while((vlen > 0) && (rcode == POSITIVE_ACK))
{
switch(rsv->svi)
{
case CORRELATOR:
svectors |= F_CORRELATOR;
rcode = smctr_set_corr(dev, rsv, correlator);
break;
default:
rcode = E_SUB_VECTOR_UNKNOWN;
break;
}
/* Let Sender Know if SUM of SV length's is
* larger then length in MVID length field
*/
if((vlen -= rsv->svl) < 0)
rcode = E_VECTOR_LENGTH_ERROR;
rsv = (MAC_SUB_VECTOR *)((__u32)rsv + rsv->svl);
}
if(rcode == POSITIVE_ACK)
{
/* Let Sender Know if MVID length field
* is larger then SUM of SV length's
*/
if(vlen != 0)
rcode = E_VECTOR_LENGTH_ERROR;
else
{
/* Let Sender Know if Expected SVID Missing */
if((svectors & R_RQ_ATTCH_STATE_ADDR)
^ R_RQ_ATTCH_STATE_ADDR)
rcode = E_MISSING_SUB_VECTOR;
}
}
return (rcode);
}
static int smctr_rcv_unknown(struct net_device *dev, MAC_HEADER *rmf,
__u16 *correlator)
{
MAC_SUB_VECTOR *rsv;
signed short vlen;
*correlator = 0;
/* Remove MVID Length from total length */
vlen = (signed short)rmf->vl - 4;
/* Point to First SVID */
rsv = (MAC_SUB_VECTOR *)((__u32)rmf + sizeof(MAC_HEADER));
/* Search for CORRELATOR for RSP to UNKNOWN */
while((vlen > 0) && (*correlator == 0))
{
switch(rsv->svi)
{
case CORRELATOR:
smctr_set_corr(dev, rsv, correlator);
break;
default:
break;
}
vlen -= rsv->svl;
rsv = (MAC_SUB_VECTOR *)((__u32)rsv + rsv->svl);
}
return (E_UNRECOGNIZED_VECTOR_ID);
}
/*
* Reset the 825 NIC and exit w:
* 1. The NIC reset cleared (non-reset state), halted and un-initialized.
* 2. TINT masked.
* 3. CBUSY masked.
* 4. TINT clear.
* 5. CBUSY clear.
*/
static int smctr_reset_adapter(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
int ioaddr = dev->base_addr;
/* Reseting the NIC will put it in a halted and un-initialized state. */ smctr_set_trc_reset(ioaddr);
mdelay(200); /* ~2 ms */
smctr_clear_trc_reset(ioaddr);
mdelay(200); /* ~2 ms */
/* Remove any latched interrupts that occurred prior to reseting the
* adapter or possibily caused by line glitches due to the reset.
*/
outb(tp->trc_mask | CSR_CLRTINT | CSR_CLRCBUSY, ioaddr + CSR);
return (0);
}
static int smctr_restart_tx_chain(struct net_device *dev, short queue)
{
struct net_local *tp = netdev_priv(dev);
int err = 0;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_restart_tx_chain\n", dev->name);
if(tp->num_tx_fcbs_used[queue] != 0
&& tp->tx_queue_status[queue] == NOT_TRANSMITING)
{
tp->tx_queue_status[queue] = TRANSMITING;
err = smctr_issue_resume_tx_fcb_cmd(dev, queue);
}
return (err);
}
static int smctr_ring_status_chg(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_ring_status_chg\n", dev->name);
/* Check for ring_status_flag: whenever MONITOR_STATE_BIT
* Bit is set, check value of monitor_state, only then we
* enable and start transmit/receive timeout (if and only
* if it is MS_ACTIVE_MONITOR_STATE or MS_STANDBY_MONITOR_STATE)
*/
if(tp->ring_status_flags == MONITOR_STATE_CHANGED)
{
if((tp->monitor_state == MS_ACTIVE_MONITOR_STATE)
|| (tp->monitor_state == MS_STANDBY_MONITOR_STATE))
{
tp->monitor_state_ready = 1;
}
else
{
/* if adapter is NOT in either active monitor
* or standby monitor state => Disable
* transmit/receive timeout.
*/
tp->monitor_state_ready = 0;
/* Ring speed problem, switching to auto mode. */
if(tp->monitor_state == MS_MONITOR_FSM_INACTIVE
&& !tp->cleanup)
{
printk(KERN_INFO "%s: Incorrect ring speed switching.\n",
dev->name);
smctr_set_ring_speed(dev);
}
}
}
if(!(tp->ring_status_flags & RING_STATUS_CHANGED))
return (0);
switch(tp->ring_status)
{
case RING_RECOVERY:
printk(KERN_INFO "%s: Ring Recovery\n", dev->name);
tp->current_ring_status |= RING_RECOVERY;
break;
case SINGLE_STATION:
printk(KERN_INFO "%s: Single Statinon\n", dev->name);
tp->current_ring_status |= SINGLE_STATION;
break;
case COUNTER_OVERFLOW:
printk(KERN_INFO "%s: Counter Overflow\n", dev->name);
tp->current_ring_status |= COUNTER_OVERFLOW;
break;
case REMOVE_RECEIVED:
printk(KERN_INFO "%s: Remove Received\n", dev->name);
tp->current_ring_status |= REMOVE_RECEIVED;
break;
case AUTO_REMOVAL_ERROR:
printk(KERN_INFO "%s: Auto Remove Error\n", dev->name);
tp->current_ring_status |= AUTO_REMOVAL_ERROR;
break;
case LOBE_WIRE_FAULT:
printk(KERN_INFO "%s: Lobe Wire Fault\n", dev->name);
tp->current_ring_status |= LOBE_WIRE_FAULT;
break;
case TRANSMIT_BEACON:
printk(KERN_INFO "%s: Transmit Beacon\n", dev->name);
tp->current_ring_status |= TRANSMIT_BEACON;
break;
case SOFT_ERROR:
printk(KERN_INFO "%s: Soft Error\n", dev->name);
tp->current_ring_status |= SOFT_ERROR;
break;
case HARD_ERROR:
printk(KERN_INFO "%s: Hard Error\n", dev->name);
tp->current_ring_status |= HARD_ERROR;
break;
case SIGNAL_LOSS:
printk(KERN_INFO "%s: Signal Loss\n", dev->name);
tp->current_ring_status |= SIGNAL_LOSS;
break;
default:
printk(KERN_INFO "%s: Unknown ring status change\n",
dev->name);
break;
}
return (0);
}
static int smctr_rx_frame(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
__u16 queue, status, rx_size, err = 0;
__u8 *pbuff;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_rx_frame\n", dev->name);
queue = tp->receive_queue_number;
while((status = tp->rx_fcb_curr[queue]->frame_status) != SUCCESS)
{
err = HARDWARE_FAILED;
if(((status & 0x007f) == 0)
|| ((tp->receive_mask & ACCEPT_ERR_PACKETS) != 0))
{
/* frame length less the CRC (4 bytes) + FS (1 byte) */
rx_size = tp->rx_fcb_curr[queue]->frame_length - 5;
pbuff = smctr_get_rx_pointer(dev, queue);
smctr_set_page(dev, pbuff);
smctr_disable_16bit(dev);
/* pbuff points to addr within one page */
pbuff = (__u8 *)PAGE_POINTER(pbuff);
if(queue == NON_MAC_QUEUE)
{
struct sk_buff *skb;
skb = dev_alloc_skb(rx_size);
if (skb) {
skb_put(skb, rx_size);
skb_copy_to_linear_data(skb, pbuff, rx_size);
/* Update Counters */
tp->MacStat.rx_packets++;
tp->MacStat.rx_bytes += skb->len;
/* Kick the packet on up. */
skb->protocol = tr_type_trans(skb, dev);
netif_rx(skb);
} else {
}
}
else
smctr_process_rx_packet((MAC_HEADER *)pbuff,
rx_size, dev, status);
}
smctr_enable_16bit(dev);
smctr_set_page(dev, (__u8 *)tp->ram_access);
smctr_update_rx_chain(dev, queue);
if(err != SUCCESS)
break;
}
return (err);
}
static int smctr_send_dat(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
unsigned int i, err;
MAC_HEADER *tmf;
FCBlock *fcb;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_send_dat\n", dev->name);
if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE,
sizeof(MAC_HEADER))) == (FCBlock *)(-1L))
{
return (OUT_OF_RESOURCES);
}
/* Initialize DAT Data Fields. */
tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr;
tmf->ac = MSB(AC_FC_DAT);
tmf->fc = LSB(AC_FC_DAT);
for(i = 0; i < 6; i++)
{
tmf->sa[i] = dev->dev_addr[i];
tmf->da[i] = dev->dev_addr[i];
}
tmf->vc = DAT;
tmf->dc_sc = DC_RS | SC_RS;
tmf->vl = 4;
tmf->vl = SWAP_BYTES(tmf->vl);
/* Start Transmit. */
if((err = smctr_trc_send_packet(dev, fcb, MAC_QUEUE)))
return (err);
/* Wait for Transmit to Complete */
for(i = 0; i < 10000; i++)
{
if(fcb->frame_status & FCB_COMMAND_DONE)
break;
mdelay(1);
}
/* Check if GOOD frame Tx'ed. */
if(!(fcb->frame_status & FCB_COMMAND_DONE)
|| fcb->frame_status & (FCB_TX_STATUS_E | FCB_TX_AC_BITS))
{
return (INITIALIZE_FAILED);
}
/* De-allocated Tx FCB and Frame Buffer
* The FCB must be de-allocated manually if executing with
* interrupts disabled, other wise the ISR (LM_Service_Events)
* will de-allocate it when the interrupt occurs.
*/
tp->tx_queue_status[MAC_QUEUE] = NOT_TRANSMITING;
smctr_update_tx_chain(dev, fcb, MAC_QUEUE);
return (0);
}
static void smctr_timeout(struct net_device *dev)
{
/*
* If we get here, some higher level has decided we are broken.
* There should really be a "kick me" function call instead.
*
* Resetting the token ring adapter takes a long time so just
* fake transmission time and go on trying. Our own timeout
* routine is in sktr_timer_chk()
*/
dev->trans_start = jiffies;
netif_wake_queue(dev);
}
/*
* Gets skb from system, queues it and checks if it can be sent
*/
static int smctr_send_packet(struct sk_buff *skb, struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_send_packet\n", dev->name);
/*
* Block a transmit overlap
*/
netif_stop_queue(dev);
if(tp->QueueSkb == 0)
return (1); /* Return with tbusy set: queue full */
tp->QueueSkb--;
skb_queue_tail(&tp->SendSkbQueue, skb);
smctr_hardware_send_packet(dev, tp);
if(tp->QueueSkb > 0)
netif_wake_queue(dev);
return (0);
}
static int smctr_send_lobe_media_test(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
MAC_SUB_VECTOR *tsv;
MAC_HEADER *tmf;
FCBlock *fcb;
__u32 i;
int err;
if(smctr_debug > 15)
printk(KERN_DEBUG "%s: smctr_send_lobe_media_test\n", dev->name);
if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(struct trh_hdr)
+ S_WRAP_DATA + S_WRAP_DATA)) == (FCBlock *)(-1L))
{
return (OUT_OF_RESOURCES);
}
/* Initialize DAT Data Fields. */
tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr;
tmf->ac = MSB(AC_FC_LOBE_MEDIA_TEST);
tmf->fc = LSB(AC_FC_LOBE_MEDIA_TEST);
for(i = 0; i < 6; i++)
{
tmf->da[i] = 0;
tmf->sa[i] = dev->dev_addr[i];
}
tmf->vc = LOBE_MEDIA_TEST;
tmf->dc_sc = DC_RS | SC_RS;
tmf->vl = 4;
tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER));
smctr_make_wrap_data(dev, tsv);
tmf->vl += tsv->svl;
tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
smctr_make_wrap_data(dev, tsv);
tmf->vl += tsv->svl;
/* Start Transmit. */
tmf->vl = SWAP_BYTES(tmf->vl);
if((err = smctr_trc_send_packet(dev, fcb, MAC_QUEUE)))
return (err);
/* Wait for Transmit to Complete. (10 ms). */
for(i=0; i < 10000; i++)
{
if(fcb->frame_status & FCB_COMMAND_DONE)
break;
mdelay(1);
}
/* Check if GOOD frame Tx'ed */
if(!(fcb->frame_status & FCB_COMMAND_DONE)
|| fcb->frame_status & (FCB_TX_STATUS_E | FCB_TX_AC_BITS))
{
return (LOBE_MEDIA_TEST_FAILED);
}
/* De-allocated Tx FCB and Frame Buffer
* The FCB must be de-allocated manually if executing with
* interrupts disabled, other wise the ISR (LM_Service_Events)
* will de-allocate it when the interrupt occurs.
*/
tp->tx_queue_status[MAC_QUEUE] = NOT_TRANSMITING;
smctr_update_tx_chain(dev, fcb, MAC_QUEUE);
return (0);
}
static int smctr_send_rpt_addr(struct net_device *dev, MAC_HEADER *rmf,
__u16 correlator)
{
MAC_HEADER *tmf;
MAC_SUB_VECTOR *tsv;
FCBlock *fcb;
if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(MAC_HEADER)
+ S_CORRELATOR + S_PHYSICAL_DROP + S_UPSTREAM_NEIGHBOR_ADDRESS
+ S_ADDRESS_MODIFER + S_GROUP_ADDRESS + S_FUNCTIONAL_ADDRESS))
== (FCBlock *)(-1L))
{
return (0);
}
tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr;
tmf->vc = RPT_ADDR;
tmf->dc_sc = (rmf->dc_sc & SC_MASK) << 4;
tmf->vl = 4;
smctr_make_8025_hdr(dev, rmf, tmf, AC_FC_RPT_ADDR);
tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER));
smctr_make_corr(dev, tsv, correlator);
tmf->vl += tsv->svl;
tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
smctr_make_phy_drop_num(dev, tsv);
tmf->vl += tsv->svl;
tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
smctr_make_upstream_neighbor_addr(dev, tsv);
tmf->vl += tsv->svl;
tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
smctr_make_addr_mod(dev, tsv);
tmf->vl += tsv->svl;
tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
smctr_make_group_addr(dev, tsv);
tmf->vl += tsv->svl;
tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
smctr_make_funct_addr(dev, tsv);
tmf->vl += tsv->svl;
/* Subtract out MVID and MVL which is
* include in both vl and MAC_HEADER
*/
/* fcb->frame_length = tmf->vl + sizeof(MAC_HEADER) - 4;
fcb->bdb_ptr->buffer_length = tmf->vl + sizeof(MAC_HEADER) - 4;
*/
tmf->vl = SWAP_BYTES(tmf->vl);
return (smctr_trc_send_packet(dev, fcb, MAC_QUEUE));
}
static int smctr_send_rpt_attch(struct net_device *dev, MAC_HEADER *rmf,
__u16 correlator)
{
MAC_HEADER *tmf;
MAC_SUB_VECTOR *tsv;
FCBlock *fcb;
if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(MAC_HEADER)
+ S_CORRELATOR + S_PRODUCT_INSTANCE_ID + S_FUNCTIONAL_ADDRESS
+ S_AUTHORIZED_FUNCTION_CLASS + S_AUTHORIZED_ACCESS_PRIORITY))
== (FCBlock *)(-1L))
{
return (0);
}
tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr;
tmf->vc = RPT_ATTCH;
tmf->dc_sc = (rmf->dc_sc & SC_MASK) << 4;
tmf->vl = 4;
smctr_make_8025_hdr(dev, rmf, tmf, AC_FC_RPT_ATTCH);
tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER));
smctr_make_corr(dev, tsv, correlator);
tmf->vl += tsv->svl;
tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
smctr_make_product_id(dev, tsv);
tmf->vl += tsv->svl;
tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
smctr_make_funct_addr(dev, tsv);
tmf->vl += tsv->svl;
tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
smctr_make_auth_funct_class(dev, tsv);
tmf->vl += tsv->svl;
tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
smctr_make_access_pri(dev, tsv);
tmf->vl += tsv->svl;
/* Subtract out MVID and MVL which is
* include in both vl and MAC_HEADER
*/
/* fcb->frame_length = tmf->vl + sizeof(MAC_HEADER) - 4;
fcb->bdb_ptr->buffer_length = tmf->vl + sizeof(MAC_HEADER) - 4;
*/
tmf->vl = SWAP_BYTES(tmf->vl);
return (smctr_trc_send_packet(dev, fcb, MAC_QUEUE));
}
static int smctr_send_rpt_state(struct net_device *dev, MAC_HEADER *rmf,
__u16 correlator)
{
MAC_HEADER *tmf;
MAC_SUB_VECTOR *tsv;
FCBlock *fcb;
if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(MAC_HEADER)
+ S_CORRELATOR + S_RING_STATION_VERSION_NUMBER
+ S_RING_STATION_STATUS + S_STATION_IDENTIFER))
== (FCBlock *)(-1L))
{
return (0);
}
tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr;
tmf->vc = RPT_STATE;
tmf->dc_sc = (rmf->dc_sc & SC_MASK) << 4;
tmf->vl = 4;
smctr_make_8025_hdr(dev, rmf, tmf, AC_FC_RPT_STATE);
tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER));
smctr_make_corr(dev, tsv, correlator);
tmf->vl += tsv->svl;
tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
smctr_make_ring_station_version(dev, tsv);
tmf->vl += tsv->svl;
tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
smctr_make_ring_station_status(dev, tsv);
tmf->vl += tsv->svl;
tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
smctr_make_station_id(dev, tsv);
tmf->vl += tsv->svl;
/* Subtract out MVID and MVL which is
* include in both vl and MAC_HEADER
*/
/* fcb->frame_length = tmf->vl + sizeof(MAC_HEADER) - 4;
fcb->bdb_ptr->buffer_length = tmf->vl + sizeof(MAC_HEADER) - 4;
*/
tmf->vl = SWAP_BYTES(tmf->vl);
return (smctr_trc_send_packet(dev, fcb, MAC_QUEUE));
}
static int smctr_send_rpt_tx_forward(struct net_device *dev,
MAC_HEADER *rmf, __u16 tx_fstatus)
{
MAC_HEADER *tmf;
MAC_SUB_VECTOR *tsv;
FCBlock *fcb;
if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(MAC_HEADER)
+ S_TRANSMIT_STATUS_CODE)) == (FCBlock *)(-1L))
{
return (0);
}
tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr;
tmf->vc = RPT_TX_FORWARD;
tmf->dc_sc = (rmf->dc_sc & SC_MASK) << 4;
tmf->vl = 4;
smctr_make_8025_hdr(dev, rmf, tmf, AC_FC_RPT_TX_FORWARD);
tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER));
smctr_make_tx_status_code(dev, tsv, tx_fstatus);
tmf->vl += tsv->svl;
/* Subtract out MVID and MVL which is
* include in both vl and MAC_HEADER
*/
/* fcb->frame_length = tmf->vl + sizeof(MAC_HEADER) - 4;
fcb->bdb_ptr->buffer_length = tmf->vl + sizeof(MAC_HEADER) - 4;
*/
tmf->vl = SWAP_BYTES(tmf->vl);
return(smctr_trc_send_packet(dev, fcb, MAC_QUEUE));
}
static int smctr_send_rsp(struct net_device *dev, MAC_HEADER *rmf,
__u16 rcode, __u16 correlator)
{
MAC_HEADER *tmf;
MAC_SUB_VECTOR *tsv;
FCBlock *fcb;
if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(MAC_HEADER)
+ S_CORRELATOR + S_RESPONSE_CODE)) == (FCBlock *)(-1L))
{
return (0);
}
tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr;
tmf->vc = RSP;
tmf->dc_sc = (rmf->dc_sc & SC_MASK) << 4;
tmf->vl = 4;
smctr_make_8025_hdr(dev, rmf, tmf, AC_FC_RSP);
tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER));
smctr_make_corr(dev, tsv, correlator);
return (0);
}
static int smctr_send_rq_init(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
MAC_HEADER *tmf;
MAC_SUB_VECTOR *tsv;
FCBlock *fcb;
unsigned int i, count = 0;
__u16 fstatus;
int err;
do {
if(((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(MAC_HEADER)
+ S_PRODUCT_INSTANCE_ID + S_UPSTREAM_NEIGHBOR_ADDRESS
+ S_RING_STATION_VERSION_NUMBER + S_ADDRESS_MODIFER))
== (FCBlock *)(-1L)))
{
return (0);
}
tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr;
tmf->vc = RQ_INIT;
tmf->dc_sc = DC_RPS | SC_RS;
tmf->vl = 4;
smctr_make_8025_hdr(dev, NULL, tmf, AC_FC_RQ_INIT);
tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER));
smctr_make_product_id(dev, tsv);
tmf->vl += tsv->svl;
tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
smctr_make_upstream_neighbor_addr(dev, tsv);
tmf->vl += tsv->svl;
tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
smctr_make_ring_station_version(dev, tsv);
tmf->vl += tsv->svl;
tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
smctr_make_addr_mod(dev, tsv);
tmf->vl += tsv->svl;
/* Subtract out MVID and MVL which is
* include in both vl and MAC_HEADER
*/
/* fcb->frame_length = tmf->vl + sizeof(MAC_HEADER) - 4;
fcb->bdb_ptr->buffer_length = tmf->vl + sizeof(MAC_HEADER) - 4;
*/
tmf->vl = SWAP_BYTES(tmf->vl);
if((err = smctr_trc_send_packet(dev, fcb, MAC_QUEUE)))
return (err);
/* Wait for Transmit to Complete */
for(i = 0; i < 10000; i++)
{
if(fcb->frame_status & FCB_COMMAND_DONE)
break;
mdelay(1);
}
/* Check if GOOD frame Tx'ed */
fstatus = fcb->frame_status;
if(!(fstatus & FCB_COMMAND_DONE))
return (HARDWARE_FAILED);
if(!(fstatus & FCB_TX_STATUS_E))
count++;
/* De-allocated Tx FCB and Frame Buffer
* The FCB must be de-allocated manually if executing with
* interrupts disabled, other wise the ISR (LM_Service_Events)
* will de-allocate it when the interrupt occurs.
*/
tp->tx_queue_status[MAC_QUEUE] = NOT_TRANSMITING;
smctr_update_tx_chain(dev, fcb, MAC_QUEUE);
} while(count < 4 && ((fstatus & FCB_TX_AC_BITS) ^ FCB_TX_AC_BITS));
return (smctr_join_complete_state(dev));
}
static int smctr_send_tx_forward(struct net_device *dev, MAC_HEADER *rmf,
__u16 *tx_fstatus)
{
struct net_local *tp = netdev_priv(dev);
FCBlock *fcb;
unsigned int i;
int err;
/* Check if this is the END POINT of the Transmit Forward Chain. */
if(rmf->vl <= 18)
return (0);
/* Allocate Transmit FCB only by requesting 0 bytes
* of data buffer.
*/
if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, 0)) == (FCBlock *)(-1L))
return (0);
/* Set pointer to Transmit Frame Buffer to the data
* portion of the received TX Forward frame, making
* sure to skip over the Vector Code (vc) and Vector
* length (vl).
*/
fcb->bdb_ptr->trc_data_block_ptr = TRC_POINTER((__u32)rmf
+ sizeof(MAC_HEADER) + 2);
fcb->bdb_ptr->data_block_ptr = (__u16 *)((__u32)rmf
+ sizeof(MAC_HEADER) + 2);
fcb->frame_length = rmf->vl - 4 - 2;
fcb->bdb_ptr->buffer_length = rmf->vl - 4 - 2;
if((err = smctr_trc_send_packet(dev, fcb, MAC_QUEUE)))
return (err);
/* Wait for Transmit to Complete */
for(i = 0; i < 10000; i++)
{
if(fcb->frame_status & FCB_COMMAND_DONE)
break;
mdelay(1);
}
/* Check if GOOD frame Tx'ed */
if(!(fcb->frame_status & FCB_COMMAND_DONE))
{
if((err = smctr_issue_resume_tx_fcb_cmd(dev, MAC_QUEUE)))
return (err);
for(i = 0; i < 10000; i++)
{
if(fcb->frame_status & FCB_COMMAND_DONE)
break;
mdelay(1);
}
if(!(fcb->frame_status & FCB_COMMAND_DONE))
return (HARDWARE_FAILED);
}
*tx_fstatus = fcb->frame_status;
return (A_FRAME_WAS_FORWARDED);
}
static int smctr_set_auth_access_pri(struct net_device *dev,
MAC_SUB_VECTOR *rsv)
{
struct net_local *tp = netdev_priv(dev);
if(rsv->svl != S_AUTHORIZED_ACCESS_PRIORITY)
return (E_SUB_VECTOR_LENGTH_ERROR);
tp->authorized_access_priority = (rsv->svv[0] << 8 | rsv->svv[1]);
return (POSITIVE_ACK);
}
static int smctr_set_auth_funct_class(struct net_device *dev,
MAC_SUB_VECTOR *rsv)
{
struct net_local *tp = netdev_priv(dev);
if(rsv->svl != S_AUTHORIZED_FUNCTION_CLASS)
return (E_SUB_VECTOR_LENGTH_ERROR);
tp->authorized_function_classes = (rsv->svv[0] << 8 | rsv->svv[1]);
return (POSITIVE_ACK);
}
static int smctr_set_corr(struct net_device *dev, MAC_SUB_VECTOR *rsv,
__u16 *correlator)
{
if(rsv->svl != S_CORRELATOR)
return (E_SUB_VECTOR_LENGTH_ERROR);
*correlator = (rsv->svv[0] << 8 | rsv->svv[1]);
return (POSITIVE_ACK);
}
static int smctr_set_error_timer_value(struct net_device *dev,
MAC_SUB_VECTOR *rsv)
{
__u16 err_tval;
int err;
if(rsv->svl != S_ERROR_TIMER_VALUE)
return (E_SUB_VECTOR_LENGTH_ERROR);
err_tval = (rsv->svv[0] << 8 | rsv->svv[1])*10;
smctr_issue_write_word_cmd(dev, RW_TER_THRESHOLD, &err_tval);
if((err = smctr_wait_cmd(dev)))
return (err);
return (POSITIVE_ACK);
}
static int smctr_set_frame_forward(struct net_device *dev,
MAC_SUB_VECTOR *rsv, __u8 dc_sc)
{
if((rsv->svl < 2) || (rsv->svl > S_FRAME_FORWARD))
return (E_SUB_VECTOR_LENGTH_ERROR);
if((dc_sc & DC_MASK) != DC_CRS)
{
if(rsv->svl >= 2 && rsv->svl < 20)
return (E_TRANSMIT_FORWARD_INVALID);
if((rsv->svv[0] != 0) || (rsv->svv[1] != 0))
return (E_TRANSMIT_FORWARD_INVALID);
}
return (POSITIVE_ACK);
}
static int smctr_set_local_ring_num(struct net_device *dev,
MAC_SUB_VECTOR *rsv)
{
struct net_local *tp = netdev_priv(dev);
if(rsv->svl != S_LOCAL_RING_NUMBER)
return (E_SUB_VECTOR_LENGTH_ERROR);
if(tp->ptr_local_ring_num)
*(__u16 *)(tp->ptr_local_ring_num)
= (rsv->svv[0] << 8 | rsv->svv[1]);
return (POSITIVE_ACK);
}
static unsigned short smctr_set_ctrl_attention(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
int ioaddr = dev->base_addr;
if(tp->bic_type == BIC_585_CHIP)
outb((tp->trc_mask | HWR_CA), ioaddr + HWR);
else
{
outb((tp->trc_mask | CSR_CA), ioaddr + CSR);
outb(tp->trc_mask, ioaddr + CSR);
}
return (0);
}
static void smctr_set_multicast_list(struct net_device *dev)
{
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_set_multicast_list\n", dev->name);
return;
}
static int smctr_set_page(struct net_device *dev, __u8 *buf)
{
struct net_local *tp = netdev_priv(dev);
__u8 amask;
__u32 tptr;
tptr = (__u32)buf - (__u32)tp->ram_access;
amask = (__u8)((tptr & PR_PAGE_MASK) >> 8);
outb(amask, dev->base_addr + PR);
return (0);
}
static int smctr_set_phy_drop(struct net_device *dev, MAC_SUB_VECTOR *rsv)
{
int err;
if(rsv->svl != S_PHYSICAL_DROP)
return (E_SUB_VECTOR_LENGTH_ERROR);
smctr_issue_write_byte_cmd(dev, RW_PHYSICAL_DROP_NUMBER, &rsv->svv[0]);
if((err = smctr_wait_cmd(dev)))
return (err);
return (POSITIVE_ACK);
}
/* Reset the ring speed to the opposite of what it was. This auto-pilot
* mode requires a complete reset and re-init of the adapter.
*/
static int smctr_set_ring_speed(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
int err;
if(tp->media_type == MEDIA_UTP_16)
tp->media_type = MEDIA_UTP_4;
else
tp->media_type = MEDIA_UTP_16;
smctr_enable_16bit(dev);
/* Re-Initialize adapter's internal registers */
smctr_reset_adapter(dev);
if((err = smctr_init_card_real(dev)))
return (err);
smctr_enable_bic_int(dev);
if((err = smctr_issue_enable_int_cmd(dev, TRC_INTERRUPT_ENABLE_MASK)))
return (err);
smctr_disable_16bit(dev);
return (0);
}
static int smctr_set_rx_look_ahead(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
__u16 sword, rword;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_set_rx_look_ahead_flag\n", dev->name);
tp->adapter_flags &= ~(FORCED_16BIT_MODE);
tp->adapter_flags |= RX_VALID_LOOKAHEAD;
if(tp->adapter_bus == BUS_ISA16_TYPE)
{
sword = *((__u16 *)(tp->ram_access));
*((__u16 *)(tp->ram_access)) = 0x1234;
smctr_disable_16bit(dev);
rword = *((__u16 *)(tp->ram_access));
smctr_enable_16bit(dev);
if(rword != 0x1234)
tp->adapter_flags |= FORCED_16BIT_MODE;
*((__u16 *)(tp->ram_access)) = sword;
}
return (0);
}
static int smctr_set_trc_reset(int ioaddr)
{
__u8 r;
r = inb(ioaddr + MSR);
outb(MSR_RST | r, ioaddr + MSR);
return (0);
}
/*
* This function can be called if the adapter is busy or not.
*/
static int smctr_setup_single_cmd(struct net_device *dev,
__u16 command, __u16 subcommand)
{
struct net_local *tp = netdev_priv(dev);
unsigned int err;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_setup_single_cmd\n", dev->name);
if((err = smctr_wait_while_cbusy(dev)))
return (err);
if((err = (unsigned int)smctr_wait_cmd(dev)))
return (err);
tp->acb_head->cmd_done_status = 0;
tp->acb_head->cmd = command;
tp->acb_head->subcmd = subcommand;
err = smctr_issue_resume_acb_cmd(dev);
return (err);
}
/*
* This function can not be called with the adapter busy.
*/
static int smctr_setup_single_cmd_w_data(struct net_device *dev,
__u16 command, __u16 subcommand)
{
struct net_local *tp = netdev_priv(dev);
tp->acb_head->cmd_done_status = ACB_COMMAND_NOT_DONE;
tp->acb_head->cmd = command;
tp->acb_head->subcmd = subcommand;
tp->acb_head->data_offset_lo
= (__u16)TRC_POINTER(tp->misc_command_data);
return(smctr_issue_resume_acb_cmd(dev));
}
static char *smctr_malloc(struct net_device *dev, __u16 size)
{
struct net_local *tp = netdev_priv(dev);
char *m;
m = (char *)(tp->ram_access + tp->sh_mem_used);
tp->sh_mem_used += (__u32)size;
return (m);
}
static int smctr_status_chg(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_status_chg\n", dev->name);
switch(tp->status)
{
case OPEN:
break;
case CLOSED:
break;
/* Interrupt driven open() completion. XXX */
case INITIALIZED:
tp->group_address_0 = 0;
tp->group_address[0] = 0;
tp->group_address[1] = 0;
tp->functional_address_0 = 0;
tp->functional_address[0] = 0;
tp->functional_address[1] = 0;
smctr_open_tr(dev);
break;
default:
printk(KERN_INFO "%s: status change unknown %x\n",
dev->name, tp->status);
break;
}
return (0);
}
static int smctr_trc_send_packet(struct net_device *dev, FCBlock *fcb,
__u16 queue)
{
struct net_local *tp = netdev_priv(dev);
int err = 0;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_trc_send_packet\n", dev->name);
fcb->info = FCB_CHAIN_END | FCB_ENABLE_TFS;
if(tp->num_tx_fcbs[queue] != 1)
fcb->back_ptr->info = FCB_INTERRUPT_ENABLE | FCB_ENABLE_TFS;
if(tp->tx_queue_status[queue] == NOT_TRANSMITING)
{
tp->tx_queue_status[queue] = TRANSMITING;
err = smctr_issue_resume_tx_fcb_cmd(dev, queue);
}
return (err);
}
static __u16 smctr_tx_complete(struct net_device *dev, __u16 queue)
{
struct net_local *tp = netdev_priv(dev);
__u16 status, err = 0;
int cstatus;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_tx_complete\n", dev->name);
while((status = tp->tx_fcb_end[queue]->frame_status) != SUCCESS)
{
if(status & 0x7e00 )
{
err = HARDWARE_FAILED;
break;
}
if((err = smctr_update_tx_chain(dev, tp->tx_fcb_end[queue],
queue)) != SUCCESS)
break;
smctr_disable_16bit(dev);
if(tp->mode_bits & UMAC)
{
if(!(status & (FCB_TX_STATUS_AR1 | FCB_TX_STATUS_AR2)))
cstatus = NO_SUCH_DESTINATION;
else
{
if(!(status & (FCB_TX_STATUS_CR1 | FCB_TX_STATUS_CR2)))
cstatus = DEST_OUT_OF_RESOURCES;
else
{
if(status & FCB_TX_STATUS_E)
cstatus = MAX_COLLISIONS;
else
cstatus = SUCCESS;
}
}
}
else
cstatus = SUCCESS;
if(queue == BUG_QUEUE)
err = SUCCESS;
smctr_enable_16bit(dev);
if(err != SUCCESS)
break;
}
return (err);
}
static unsigned short smctr_tx_move_frame(struct net_device *dev,
struct sk_buff *skb, __u8 *pbuff, unsigned int bytes)
{
struct net_local *tp = netdev_priv(dev);
unsigned int ram_usable;
__u32 flen, len, offset = 0;
__u8 *frag, *page;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_tx_move_frame\n", dev->name);
ram_usable = ((unsigned int)tp->ram_usable) << 10;
frag = skb->data;
flen = skb->len;
while(flen > 0 && bytes > 0)
{
smctr_set_page(dev, pbuff);
offset = SMC_PAGE_OFFSET(pbuff);
if(offset + flen > ram_usable)
len = ram_usable - offset;
else
len = flen;
if(len > bytes)
len = bytes;
page = (char *) (offset + tp->ram_access);
memcpy(page, frag, len);
flen -=len;
bytes -= len;
frag += len;
pbuff += len;
}
return (0);
}
/* Update the error statistic counters for this adapter. */
static int smctr_update_err_stats(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
struct tr_statistics *tstat = &tp->MacStat;
if(tstat->internal_errors)
tstat->internal_errors
+= *(tp->misc_command_data + 0) & 0x00ff;
if(tstat->line_errors)
tstat->line_errors += *(tp->misc_command_data + 0) >> 8;
if(tstat->A_C_errors)
tstat->A_C_errors += *(tp->misc_command_data + 1) & 0x00ff;
if(tstat->burst_errors)
tstat->burst_errors += *(tp->misc_command_data + 1) >> 8;
if(tstat->abort_delimiters)
tstat->abort_delimiters += *(tp->misc_command_data + 2) >> 8;
if(tstat->recv_congest_count)
tstat->recv_congest_count
+= *(tp->misc_command_data + 3) & 0x00ff;
if(tstat->lost_frames)
tstat->lost_frames
+= *(tp->misc_command_data + 3) >> 8;
if(tstat->frequency_errors)
tstat->frequency_errors += *(tp->misc_command_data + 4) & 0x00ff;
if(tstat->frame_copied_errors)
tstat->frame_copied_errors
+= *(tp->misc_command_data + 4) >> 8;
if(tstat->token_errors)
tstat->token_errors += *(tp->misc_command_data + 5) >> 8;
return (0);
}
static int smctr_update_rx_chain(struct net_device *dev, __u16 queue)
{
struct net_local *tp = netdev_priv(dev);
FCBlock *fcb;
BDBlock *bdb;
__u16 size, len;
fcb = tp->rx_fcb_curr[queue];
len = fcb->frame_length;
fcb->frame_status = 0;
fcb->info = FCB_CHAIN_END;
fcb->back_ptr->info = FCB_WARNING;
tp->rx_fcb_curr[queue] = tp->rx_fcb_curr[queue]->next_ptr;
/* update RX BDBs */
size = (len >> RX_BDB_SIZE_SHIFT);
if(len & RX_DATA_BUFFER_SIZE_MASK)
size += sizeof(BDBlock);
size &= (~RX_BDB_SIZE_MASK);
/* check if wrap around */
bdb = (BDBlock *)((__u32)(tp->rx_bdb_curr[queue]) + (__u32)(size));
if((__u32)bdb >= (__u32)tp->rx_bdb_end[queue])
{
bdb = (BDBlock *)((__u32)(tp->rx_bdb_head[queue])
+ (__u32)(bdb) - (__u32)(tp->rx_bdb_end[queue]));
}
bdb->back_ptr->info = BDB_CHAIN_END;
tp->rx_bdb_curr[queue]->back_ptr->info = BDB_NOT_CHAIN_END;
tp->rx_bdb_curr[queue] = bdb;
return (0);
}
static int smctr_update_tx_chain(struct net_device *dev, FCBlock *fcb,
__u16 queue)
{
struct net_local *tp = netdev_priv(dev);
if(smctr_debug > 20)
printk(KERN_DEBUG "smctr_update_tx_chain\n");
if(tp->num_tx_fcbs_used[queue] <= 0)
return (HARDWARE_FAILED);
else
{
if(tp->tx_buff_used[queue] < fcb->memory_alloc)
{
tp->tx_buff_used[queue] = 0;
return (HARDWARE_FAILED);
}
tp->tx_buff_used[queue] -= fcb->memory_alloc;
/* if all transmit buffer are cleared
* need to set the tx_buff_curr[] to tx_buff_head[]
* otherwise, tx buffer will be segregate and cannot
* accommodate and buffer greater than (curr - head) and
* (end - curr) since we do not allow wrap around allocation.
*/
if(tp->tx_buff_used[queue] == 0)
tp->tx_buff_curr[queue] = tp->tx_buff_head[queue];
tp->num_tx_fcbs_used[queue]--;
fcb->frame_status = 0;
tp->tx_fcb_end[queue] = fcb->next_ptr;
netif_wake_queue(dev);
return (0);
}
}
static int smctr_wait_cmd(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
unsigned int loop_count = 0x20000;
if(smctr_debug > 10)
printk(KERN_DEBUG "%s: smctr_wait_cmd\n", dev->name);
while(loop_count)
{
if(tp->acb_head->cmd_done_status & ACB_COMMAND_DONE)
break;
udelay(1);
loop_count--;
}
if(loop_count == 0)
return(HARDWARE_FAILED);
if(tp->acb_head->cmd_done_status & 0xff)
return(HARDWARE_FAILED);
return (0);
}
static int smctr_wait_while_cbusy(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
unsigned int timeout = 0x20000;
int ioaddr = dev->base_addr;
__u8 r;
if(tp->bic_type == BIC_585_CHIP)
{
while(timeout)
{
r = inb(ioaddr + HWR);
if((r & HWR_CBUSY) == 0)
break;
timeout--;
}
}
else
{
while(timeout)
{
r = inb(ioaddr + CSR);
if((r & CSR_CBUSY) == 0)
break;
timeout--;
}
}
if(timeout)
return (0);
else
return (HARDWARE_FAILED);
}
#ifdef MODULE
static struct net_device* dev_smctr[SMCTR_MAX_ADAPTERS];
static int io[SMCTR_MAX_ADAPTERS];
static int irq[SMCTR_MAX_ADAPTERS];
MODULE_LICENSE("GPL");
MODULE_FIRMWARE("tr_smctr.bin");
module_param_array(io, int, NULL, 0);
module_param_array(irq, int, NULL, 0);
module_param(ringspeed, int, 0);
static struct net_device * __init setup_card(int n)
{
struct net_device *dev = alloc_trdev(sizeof(struct net_local));
int err;
if (!dev)
return ERR_PTR(-ENOMEM);
dev->irq = irq[n];
err = smctr_probe1(dev, io[n]);
if (err)
goto out;
err = register_netdev(dev);
if (err)
goto out1;
return dev;
out1:
#ifdef CONFIG_MCA_LEGACY
{ struct net_local *tp = netdev_priv(dev);
if (tp->slot_num)
mca_mark_as_unused(tp->slot_num);
}
#endif
release_region(dev->base_addr, SMCTR_IO_EXTENT);
free_irq(dev->irq, dev);
out:
free_netdev(dev);
return ERR_PTR(err);
}
int __init init_module(void)
{
int i, found = 0;
struct net_device *dev;
for(i = 0; i < SMCTR_MAX_ADAPTERS; i++) {
dev = io[0]? setup_card(i) : smctr_probe(-1);
if (!IS_ERR(dev)) {
++found;
dev_smctr[i] = dev;
}
}
return found ? 0 : -ENODEV;
}
void __exit cleanup_module(void)
{
int i;
for(i = 0; i < SMCTR_MAX_ADAPTERS; i++) {
struct net_device *dev = dev_smctr[i];
if (dev) {
unregister_netdev(dev);
#ifdef CONFIG_MCA_LEGACY
{ struct net_local *tp = netdev_priv(dev);
if (tp->slot_num)
mca_mark_as_unused(tp->slot_num);
}
#endif
release_region(dev->base_addr, SMCTR_IO_EXTENT);
if (dev->irq)
free_irq(dev->irq, dev);
free_netdev(dev);
}
}
}
#endif /* MODULE */
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