/* * smctr.c: A network driver for the SMC Token Ring Adapters. * * Written by Jay Schulist * * 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 * * 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 2002/10/28 */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if BITS_PER_LONG == 64 #error FIXME: driver does not support 64-bit platforms #endif #include "smctr.h" /* Our Stuff */ #include "smctr_firmware.h" /* SMC adapter firmware */ 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); 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, struct pt_regs *regs); 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, SA_SHIRQ, 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) { 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 *)(tp->ptr_ucode + WEIGHT_OFFSET); tsize = *(__u8 *)(tp->ptr_ucode + TREE_SIZE_OFFSET); tree = (DECODE_TREE_NODE *)(tp->ptr_ucode + TREE_OFFSET); ucode = (__u8 *)(tp->ptr_ucode + 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, SA_SHIRQ, 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 pt_regs *regs) { 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; if(dev == NULL) { printk(KERN_CRIT "%s: irq %d for unknown device.\n", dev->name, irq); return IRQ_NONE; } 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_inde