From 4ebf19b48fafc8d94e14e4ba779969613b241a6a Mon Sep 17 00:00:00 2001 From: John Crispin Date: Fri, 21 Jun 2013 16:54:37 +0000 Subject: packages: clean up the package folder Signed-off-by: John Crispin SVN-Revision: 37007 --- .../platform/lantiq/ltq-ptm/src/ifxmips_ptm_adsl.c | 1551 -------------------- 1 file changed, 1551 deletions(-) delete mode 100644 package/platform/lantiq/ltq-ptm/src/ifxmips_ptm_adsl.c (limited to 'package/platform/lantiq/ltq-ptm/src/ifxmips_ptm_adsl.c') diff --git a/package/platform/lantiq/ltq-ptm/src/ifxmips_ptm_adsl.c b/package/platform/lantiq/ltq-ptm/src/ifxmips_ptm_adsl.c deleted file mode 100644 index 391d56cf09..0000000000 --- a/package/platform/lantiq/ltq-ptm/src/ifxmips_ptm_adsl.c +++ /dev/null @@ -1,1551 +0,0 @@ -/****************************************************************************** -** -** FILE NAME : ifxmips_ptm_adsl.c -** PROJECT : UEIP -** MODULES : PTM -** -** DATE : 7 Jul 2009 -** AUTHOR : Xu Liang -** DESCRIPTION : PTM driver common source file (core functions for Danube/ -** Amazon-SE/AR9) -** COPYRIGHT : Copyright (c) 2006 -** Infineon Technologies AG -** Am Campeon 1-12, 85579 Neubiberg, Germany -** -** This program is free software; you can redistribute it and/or modify -** it under the terms of the GNU General Public License as published by -** the Free Software Foundation; either version 2 of the License, or -** (at your option) any later version. -** -** HISTORY -** $Date $Author $Comment -** 07 JUL 2009 Xu Liang Init Version -*******************************************************************************/ - - - -/* - * #################################### - * Head File - * #################################### - */ - -/* - * Common Head File - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -/* - * Chip Specific Head File - */ -#include "ifxmips_ptm_adsl.h" - - -#include - -/* - * #################################### - * Kernel Version Adaption - * #################################### - */ -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,11) - #define MODULE_PARM_ARRAY(a, b) module_param_array(a, int, NULL, 0) - #define MODULE_PARM(a, b) module_param(a, int, 0) -#else - #define MODULE_PARM_ARRAY(a, b) MODULE_PARM(a, b) -#endif - - - -/* - * #################################### - * Parameters to Configure PPE - * #################################### - */ - -static int write_desc_delay = 0x20; /* Write descriptor delay */ - -static int rx_max_packet_size = ETH_MAX_FRAME_LENGTH; - /* Max packet size for RX */ - -static int dma_rx_descriptor_length = 24; /* Number of descriptors per DMA RX channel */ -static int dma_tx_descriptor_length = 24; /* Number of descriptors per DMA TX channel */ - -static int eth_efmtc_crc_cfg = 0x03100710; /* default: tx_eth_crc_check: 1, tx_tc_crc_check: 1, tx_tc_crc_len = 16 */ - /* rx_eth_crc_present: 1, rx_eth_crc_check: 1, rx_tc_crc_check: 1, rx_tc_crc_len = 16 */ - -MODULE_PARM(write_desc_delay, "i"); -MODULE_PARM_DESC(write_desc_delay, "PPE core clock cycles between descriptor write and effectiveness in external RAM"); - -MODULE_PARM(rx_max_packet_size, "i"); -MODULE_PARM_DESC(rx_max_packet_size, "Max packet size in byte for downstream ethernet frames"); - -MODULE_PARM(dma_rx_descriptor_length, "i"); -MODULE_PARM_DESC(dma_rx_descriptor_length, "Number of descriptor assigned to DMA RX channel (>16)"); -MODULE_PARM(dma_tx_descriptor_length, "i"); -MODULE_PARM_DESC(dma_tx_descriptor_length, "Number of descriptor assigned to DMA TX channel (>16)"); - -MODULE_PARM(eth_efmtc_crc_cfg, "i"); -MODULE_PARM_DESC(eth_efmtc_crc_cfg, "Configuration for PTM TX/RX ethernet/efm-tc CRC"); - - - -/* - * #################################### - * Definition - * #################################### - */ - - -#define DUMP_SKB_LEN ~0 - - - -/* - * #################################### - * Declaration - * #################################### - */ - -/* - * Network Operations - */ -static void ptm_setup(struct net_device *, int); -static struct net_device_stats *ptm_get_stats(struct net_device *); -static int ptm_open(struct net_device *); -static int ptm_stop(struct net_device *); - static unsigned int ptm_poll(int, unsigned int); - static int ptm_napi_poll(struct napi_struct *, int); -static int ptm_hard_start_xmit(struct sk_buff *, struct net_device *); -static int ptm_ioctl(struct net_device *, struct ifreq *, int); -static void ptm_tx_timeout(struct net_device *); - -/* - * DSL Data LED - */ -static INLINE void adsl_led_flash(void); - -/* - * buffer manage functions - */ -static INLINE struct sk_buff* alloc_skb_rx(void); -//static INLINE struct sk_buff* alloc_skb_tx(unsigned int); -static INLINE struct sk_buff *get_skb_rx_pointer(unsigned int); -static INLINE int get_tx_desc(unsigned int, unsigned int *); - -/* - * Mailbox handler and signal function - */ -static INLINE int mailbox_rx_irq_handler(unsigned int); -static irqreturn_t mailbox_irq_handler(int, void *); -static INLINE void mailbox_signal(unsigned int, int); -#ifdef CONFIG_IFX_PTM_RX_TASKLET - static void do_ptm_tasklet(unsigned long); -#endif - -/* - * Debug Functions - */ -#if defined(DEBUG_DUMP_SKB) && DEBUG_DUMP_SKB - static void dump_skb(struct sk_buff *, u32, char *, int, int, int); -#else - #define dump_skb(skb, len, title, port, ch, is_tx) do {} while (0) -#endif -#if defined(ENABLE_DBG_PROC) && ENABLE_DBG_PROC - static void skb_swap(struct sk_buff *); -#else - #define skb_swap(skb) do {} while (0) -#endif - -/* - * Proc File Functions - */ -static INLINE void proc_file_create(void); -static INLINE void proc_file_delete(void); -static int proc_read_version(char *, char **, off_t, int, int *, void *); -static int proc_read_wanmib(char *, char **, off_t, int, int *, void *); -static int proc_write_wanmib(struct file *, const char *, unsigned long, void *); -#if defined(ENABLE_FW_PROC) && ENABLE_FW_PROC - static int proc_read_genconf(char *, char **, off_t, int, int *, void *); -#endif -#if defined(ENABLE_DBG_PROC) && ENABLE_DBG_PROC - static int proc_read_dbg(char *, char **, off_t, int, int *, void *); - static int proc_write_dbg(struct file *, const char *, unsigned long, void *); -#endif - -/* - * Proc Help Functions - */ -static INLINE int stricmp(const char *, const char *); -#if defined(ENABLE_DBG_PROC) && ENABLE_DBG_PROC - static INLINE int strincmp(const char *, const char *, int); -#endif -static INLINE int ifx_ptm_version(char *); - -/* - * Init & clean-up functions - */ -static INLINE void check_parameters(void); -static INLINE int init_priv_data(void); -static INLINE void clear_priv_data(void); -static INLINE void init_tables(void); - -/* - * Exteranl Function - */ -#if defined(CONFIG_IFXMIPS_DSL_CPE_MEI) || defined(CONFIG_IFXMIPS_DSL_CPE_MEI_MODULE) - extern int ifx_mei_atm_showtime_check(int *is_showtime, struct port_cell_info *port_cell, void **xdata_addr); -#else - static inline int ifx_mei_atm_showtime_check(int *is_showtime, struct port_cell_info *port_cell, void **xdata_addr) - { - if ( is_showtime != NULL ) - *is_showtime = 0; - return 0; - } -#endif - -/* - * External variable - */ -#if defined(CONFIG_IFXMIPS_DSL_CPE_MEI) || defined(CONFIG_IFXMIPS_DSL_CPE_MEI_MODULE) - extern int (*ifx_mei_atm_showtime_enter)(struct port_cell_info *, void *); - extern int (*ifx_mei_atm_showtime_exit)(void); -#else - int (*ifx_mei_atm_showtime_enter)(struct port_cell_info *, void *) = NULL; - EXPORT_SYMBOL(ifx_mei_atm_showtime_enter); - int (*ifx_mei_atm_showtime_exit)(void) = NULL; - EXPORT_SYMBOL(ifx_mei_atm_showtime_exit); -#endif - - - -/* - * #################################### - * Local Variable - * #################################### - */ - -static struct ptm_priv_data g_ptm_priv_data; - -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32) -static struct net_device_ops g_ptm_netdev_ops = { - .ndo_get_stats = ptm_get_stats, - .ndo_open = ptm_open, - .ndo_stop = ptm_stop, - .ndo_start_xmit = ptm_hard_start_xmit, - .ndo_validate_addr = eth_validate_addr, - .ndo_set_mac_address = eth_mac_addr, - .ndo_change_mtu = eth_change_mtu, - .ndo_do_ioctl = ptm_ioctl, - .ndo_tx_timeout = ptm_tx_timeout, -}; -#endif - -static struct net_device *g_net_dev[2] = {0}; -static char *g_net_dev_name[2] = {"ptm0", "ptmfast0"}; - -#ifdef CONFIG_IFX_PTM_RX_TASKLET - static struct tasklet_struct g_ptm_tasklet[] = { - {NULL, 0, ATOMIC_INIT(0), do_ptm_tasklet, 0}, - {NULL, 0, ATOMIC_INIT(0), do_ptm_tasklet, 1}, - }; -#endif - -unsigned int ifx_ptm_dbg_enable = DBG_ENABLE_MASK_ERR; - -static struct proc_dir_entry* g_ptm_dir = NULL; - -static int g_showtime = 0; - - - -/* - * #################################### - * Local Function - * #################################### - */ - -static void ptm_setup(struct net_device *dev, int ndev) -{ - /* hook network operations */ - dev->netdev_ops = &g_ptm_netdev_ops; - netif_napi_add(dev, &g_ptm_priv_data.itf[ndev].napi, ptm_napi_poll, 25); - dev->watchdog_timeo = ETH_WATCHDOG_TIMEOUT; - - dev->dev_addr[0] = 0x00; - dev->dev_addr[1] = 0x20; - dev->dev_addr[2] = 0xda; - dev->dev_addr[3] = 0x86; - dev->dev_addr[4] = 0x23; - dev->dev_addr[5] = 0x75 + ndev; -} - -static struct net_device_stats *ptm_get_stats(struct net_device *dev) -{ - int ndev; - - for ( ndev = 0; ndev < ARRAY_SIZE(g_net_dev) && g_net_dev[ndev] != dev; ndev++ ); - ASSERT(ndev >= 0 && ndev < ARRAY_SIZE(g_net_dev), "ndev = %d (wrong value)", ndev); - - g_ptm_priv_data.itf[ndev].stats.rx_errors = WAN_MIB_TABLE[ndev].wrx_tccrc_err_pdu + WAN_MIB_TABLE[ndev].wrx_ethcrc_err_pdu; - g_ptm_priv_data.itf[ndev].stats.rx_dropped = WAN_MIB_TABLE[ndev].wrx_nodesc_drop_pdu + WAN_MIB_TABLE[ndev].wrx_len_violation_drop_pdu + (WAN_MIB_TABLE[ndev].wrx_correct_pdu - g_ptm_priv_data.itf[ndev].stats.rx_packets); - - return &g_ptm_priv_data.itf[ndev].stats; -} - -static int ptm_open(struct net_device *dev) -{ - int ndev; - - for ( ndev = 0; ndev < ARRAY_SIZE(g_net_dev) && g_net_dev[ndev] != dev; ndev++ ); - ASSERT(ndev >= 0 && ndev < ARRAY_SIZE(g_net_dev), "ndev = %d (wrong value)", ndev); - - napi_enable(&g_ptm_priv_data.itf[ndev].napi); - - IFX_REG_W32_MASK(0, 1 << ndev, MBOX_IGU1_IER); - - netif_start_queue(dev); - - return 0; -} - -static int ptm_stop(struct net_device *dev) -{ - int ndev; - - for ( ndev = 0; ndev < ARRAY_SIZE(g_net_dev) && g_net_dev[ndev] != dev; ndev++ ); - ASSERT(ndev >= 0 && ndev < ARRAY_SIZE(g_net_dev), "ndev = %d (wrong value)", ndev); - - IFX_REG_W32_MASK((1 << ndev) | (1 << (ndev + 16)), 0, MBOX_IGU1_IER); - - napi_disable(&g_ptm_priv_data.itf[ndev].napi); - - netif_stop_queue(dev); - - return 0; -} - -static unsigned int ptm_poll(int ndev, unsigned int work_to_do) -{ - unsigned int work_done = 0; - - ASSERT(ndev >= 0 && ndev < ARRAY_SIZE(g_net_dev), "ndev = %d (wrong value)", ndev); - - while ( work_done < work_to_do && WRX_DMA_CHANNEL_CONFIG(ndev)->vlddes > 0 ) { - if ( mailbox_rx_irq_handler(ndev) < 0 ) - break; - - work_done++; - } - - return work_done; -} -static int ptm_napi_poll(struct napi_struct *napi, int budget) -{ - int ndev; - unsigned int work_done; - - for ( ndev = 0; ndev < ARRAY_SIZE(g_net_dev) && g_net_dev[ndev] != napi->dev; ndev++ ); - - work_done = ptm_poll(ndev, budget); - - // interface down - if ( !netif_running(napi->dev) ) { - napi_complete(napi); - return work_done; - } - - // no more traffic - if ( WRX_DMA_CHANNEL_CONFIG(ndev)->vlddes == 0 ) { - // clear interrupt - IFX_REG_W32_MASK(0, 1 << ndev, MBOX_IGU1_ISRC); - // double check - if ( WRX_DMA_CHANNEL_CONFIG(ndev)->vlddes == 0 ) { - napi_complete(napi); - IFX_REG_W32_MASK(0, 1 << ndev, MBOX_IGU1_IER); - return work_done; - } - } - - // next round - return work_done; -} - -static int ptm_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) -{ - int ndev; - unsigned int f_full; - int desc_base; - register struct tx_descriptor reg_desc = {0}; - - for ( ndev = 0; ndev < ARRAY_SIZE(g_net_dev) && g_net_dev[ndev] != dev; ndev++ ); - ASSERT(ndev >= 0 && ndev < ARRAY_SIZE(g_net_dev), "ndev = %d (wrong value)", ndev); - - if ( !g_showtime ) { - err("not in showtime"); - goto PTM_HARD_START_XMIT_FAIL; - } - - /* allocate descriptor */ - desc_base = get_tx_desc(ndev, &f_full); - if ( f_full ) { - dev->trans_start = jiffies; - netif_stop_queue(dev); - - IFX_REG_W32_MASK(0, 1 << (ndev + 16), MBOX_IGU1_ISRC); - IFX_REG_W32_MASK(0, 1 << (ndev + 16), MBOX_IGU1_IER); - } - if ( desc_base < 0 ) - goto PTM_HARD_START_XMIT_FAIL; - - if ( g_ptm_priv_data.itf[ndev].tx_skb[desc_base] != NULL ) - dev_kfree_skb_any(g_ptm_priv_data.itf[ndev].tx_skb[desc_base]); - g_ptm_priv_data.itf[ndev].tx_skb[desc_base] = skb; - - reg_desc.dataptr = (unsigned int)skb->data >> 2; - reg_desc.datalen = skb->len < ETH_ZLEN ? ETH_ZLEN : skb->len; - reg_desc.byteoff = (unsigned int)skb->data & (DATA_BUFFER_ALIGNMENT - 1); - reg_desc.own = 1; - reg_desc.c = 1; - reg_desc.sop = reg_desc.eop = 1; - - /* write discriptor to memory and write back cache */ - g_ptm_priv_data.itf[ndev].tx_desc[desc_base] = reg_desc; - dma_cache_wback((unsigned long)skb->data, skb->len); - wmb(); - - dump_skb(skb, DUMP_SKB_LEN, (char *)__func__, ndev, ndev, 1); - - if ( (ifx_ptm_dbg_enable & DBG_ENABLE_MASK_MAC_SWAP) ) { - skb_swap(skb); - } - - g_ptm_priv_data.itf[ndev].stats.tx_packets++; - g_ptm_priv_data.itf[ndev].stats.tx_bytes += reg_desc.datalen; - - dev->trans_start = jiffies; - mailbox_signal(ndev, 1); - - adsl_led_flash(); - - return NETDEV_TX_OK; - -PTM_HARD_START_XMIT_FAIL: - dev_kfree_skb_any(skb); - g_ptm_priv_data.itf[ndev].stats.tx_dropped++; - return NETDEV_TX_OK; -} - -static int ptm_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) -{ - int ndev; - - for ( ndev = 0; ndev < ARRAY_SIZE(g_net_dev) && g_net_dev[ndev] != dev; ndev++ ); - ASSERT(ndev >= 0 && ndev < ARRAY_SIZE(g_net_dev), "ndev = %d (wrong value)", ndev); - - switch ( cmd ) - { - case IFX_PTM_MIB_CW_GET: - ((PTM_CW_IF_ENTRY_T *)ifr->ifr_data)->ifRxNoIdleCodewords = WAN_MIB_TABLE[ndev].wrx_nonidle_cw; - ((PTM_CW_IF_ENTRY_T *)ifr->ifr_data)->ifRxIdleCodewords = WAN_MIB_TABLE[ndev].wrx_idle_cw; - ((PTM_CW_IF_ENTRY_T *)ifr->ifr_data)->ifRxCodingViolation = WAN_MIB_TABLE[ndev].wrx_err_cw; - ((PTM_CW_IF_ENTRY_T *)ifr->ifr_data)->ifTxNoIdleCodewords = 0; - ((PTM_CW_IF_ENTRY_T *)ifr->ifr_data)->ifTxIdleCodewords = 0; - break; - case IFX_PTM_MIB_FRAME_GET: - ((PTM_FRAME_MIB_T *)ifr->ifr_data)->RxCorrect = WAN_MIB_TABLE[ndev].wrx_correct_pdu; - ((PTM_FRAME_MIB_T *)ifr->ifr_data)->TC_CrcError = WAN_MIB_TABLE[ndev].wrx_tccrc_err_pdu; - ((PTM_FRAME_MIB_T *)ifr->ifr_data)->RxDropped = WAN_MIB_TABLE[ndev].wrx_nodesc_drop_pdu + WAN_MIB_TABLE[ndev].wrx_len_violation_drop_pdu; - ((PTM_FRAME_MIB_T *)ifr->ifr_data)->TxSend = WAN_MIB_TABLE[ndev].wtx_total_pdu; - break; - case IFX_PTM_CFG_GET: - ((IFX_PTM_CFG_T *)ifr->ifr_data)->RxEthCrcPresent = CFG_ETH_EFMTC_CRC->rx_eth_crc_present; - ((IFX_PTM_CFG_T *)ifr->ifr_data)->RxEthCrcCheck = CFG_ETH_EFMTC_CRC->rx_eth_crc_check; - ((IFX_PTM_CFG_T *)ifr->ifr_data)->RxTcCrcCheck = CFG_ETH_EFMTC_CRC->rx_tc_crc_check; - ((IFX_PTM_CFG_T *)ifr->ifr_data)->RxTcCrcLen = CFG_ETH_EFMTC_CRC->rx_tc_crc_len; - ((IFX_PTM_CFG_T *)ifr->ifr_data)->TxEthCrcGen = CFG_ETH_EFMTC_CRC->tx_eth_crc_gen; - ((IFX_PTM_CFG_T *)ifr->ifr_data)->TxTcCrcGen = CFG_ETH_EFMTC_CRC->tx_tc_crc_gen; - ((IFX_PTM_CFG_T *)ifr->ifr_data)->TxTcCrcLen = CFG_ETH_EFMTC_CRC->tx_tc_crc_len; - break; - case IFX_PTM_CFG_SET: - CFG_ETH_EFMTC_CRC->rx_eth_crc_present = ((IFX_PTM_CFG_T *)ifr->ifr_data)->RxEthCrcPresent ? 1 : 0; - CFG_ETH_EFMTC_CRC->rx_eth_crc_check = ((IFX_PTM_CFG_T *)ifr->ifr_data)->RxEthCrcCheck ? 1 : 0; - if ( ((IFX_PTM_CFG_T *)ifr->ifr_data)->RxTcCrcCheck && (((IFX_PTM_CFG_T *)ifr->ifr_data)->RxTcCrcLen == 16 || ((IFX_PTM_CFG_T *)ifr->ifr_data)->RxTcCrcLen == 32) ) - { - CFG_ETH_EFMTC_CRC->rx_tc_crc_check = 1; - CFG_ETH_EFMTC_CRC->rx_tc_crc_len = ((IFX_PTM_CFG_T *)ifr->ifr_data)->RxTcCrcLen; - } - else - { - CFG_ETH_EFMTC_CRC->rx_tc_crc_check = 0; - CFG_ETH_EFMTC_CRC->rx_tc_crc_len = 0; - } - CFG_ETH_EFMTC_CRC->tx_eth_crc_gen = ((IFX_PTM_CFG_T *)ifr->ifr_data)->TxEthCrcGen ? 1 : 0; - if ( ((IFX_PTM_CFG_T *)ifr->ifr_data)->TxTcCrcGen && (((IFX_PTM_CFG_T *)ifr->ifr_data)->TxTcCrcLen == 16 || ((IFX_PTM_CFG_T *)ifr->ifr_data)->TxTcCrcLen == 32) ) - { - CFG_ETH_EFMTC_CRC->tx_tc_crc_gen = 1; - CFG_ETH_EFMTC_CRC->tx_tc_crc_len = ((IFX_PTM_CFG_T *)ifr->ifr_data)->TxTcCrcLen; - } - else - { - CFG_ETH_EFMTC_CRC->tx_tc_crc_gen = 0; - CFG_ETH_EFMTC_CRC->tx_tc_crc_len = 0; - } - break; - default: - return -EOPNOTSUPP; - } - - return 0; -} - -static void ptm_tx_timeout(struct net_device *dev) -{ - int ndev; - - for ( ndev = 0; ndev < ARRAY_SIZE(g_net_dev) && g_net_dev[ndev] != dev; ndev++ ); - ASSERT(ndev >= 0 && ndev < ARRAY_SIZE(g_net_dev), "ndev = %d (wrong value)", ndev); - - /* disable TX irq, release skb when sending new packet */ - IFX_REG_W32_MASK(1 << (ndev + 16), 0, MBOX_IGU1_IER); - - /* wake up TX queue */ - netif_wake_queue(dev); - - return; -} - -static INLINE void adsl_led_flash(void) -{ -} - -static INLINE struct sk_buff* alloc_skb_rx(void) -{ - struct sk_buff *skb; - - /* allocate memroy including trailer and padding */ - skb = dev_alloc_skb(rx_max_packet_size + RX_HEAD_MAC_ADDR_ALIGNMENT + DATA_BUFFER_ALIGNMENT); - if ( skb != NULL ) { - /* must be burst length alignment and reserve two more bytes for MAC address alignment */ - if ( ((unsigned int)skb->data & (DATA_BUFFER_ALIGNMENT - 1)) != 0 ) - skb_reserve(skb, ~((unsigned int)skb->data + (DATA_BUFFER_ALIGNMENT - 1)) & (DATA_BUFFER_ALIGNMENT - 1)); - /* pub skb in reserved area "skb->data - 4" */ - *((struct sk_buff **)skb->data - 1) = skb; - wmb(); - /* write back and invalidate cache */ - dma_cache_wback_inv((unsigned long)skb->data - sizeof(skb), sizeof(skb)); - /* invalidate cache */ - dma_cache_inv((unsigned long)skb->data, (unsigned int)skb->end - (unsigned int)skb->data); - } - - return skb; -} - -#if 0 -static INLINE struct sk_buff* alloc_skb_tx(unsigned int size) -{ - struct sk_buff *skb; - - /* allocate memory including padding */ - size = (size + DATA_BUFFER_ALIGNMENT - 1) & ~(DATA_BUFFER_ALIGNMENT - 1); - skb = dev_alloc_skb(size + DATA_BUFFER_ALIGNMENT); - /* must be burst length alignment */ - if ( skb != NULL ) - skb_reserve(skb, ~((unsigned int)skb->data + (DATA_BUFFER_ALIGNMENT - 1)) & (DATA_BUFFER_ALIGNMENT - 1)); - return skb; -} -#endif - -static INLINE struct sk_buff *get_skb_rx_pointer(unsigned int dataptr) -{ - unsigned int skb_dataptr; - struct sk_buff *skb; - - skb_dataptr = ((dataptr - 1) << 2) | KSEG1; - skb = *(struct sk_buff **)skb_dataptr; - - ASSERT((unsigned int)skb >= KSEG0, "invalid skb - skb = %#08x, dataptr = %#08x", (unsigned int)skb, dataptr); - ASSERT(((unsigned int)skb->data | KSEG1) == ((dataptr << 2) | KSEG1), "invalid skb - skb = %#08x, skb->data = %#08x, dataptr = %#08x", (unsigned int)skb, (unsigned int)skb->data, dataptr); - - return skb; -} - -static INLINE int get_tx_desc(unsigned int itf, unsigned int *f_full) -{ - int desc_base = -1; - struct ptm_itf *p_itf = &g_ptm_priv_data.itf[itf]; - - // assume TX is serial operation - // no protection provided - - *f_full = 1; - - if ( p_itf->tx_desc[p_itf->tx_desc_pos].own == 0 ) { - desc_base = p_itf->tx_desc_pos; - if ( ++(p_itf->tx_desc_pos) == dma_tx_descriptor_length ) - p_itf->tx_desc_pos = 0; - if ( p_itf->tx_desc[p_itf->tx_desc_pos].own == 0 ) - *f_full = 0; - } - - return desc_base; -} - -static INLINE int mailbox_rx_irq_handler(unsigned int ch) // return: < 0 - descriptor not available, 0 - received one packet -{ - unsigned int ndev = ch; - struct sk_buff *skb; - struct sk_buff *new_skb; - volatile struct rx_descriptor *desc; - struct rx_descriptor reg_desc; - int netif_rx_ret; - - desc = &g_ptm_priv_data.itf[ndev].rx_desc[g_ptm_priv_data.itf[ndev].rx_desc_pos]; - if ( desc->own || !desc->c ) // if PP32 hold descriptor or descriptor not completed - return -EAGAIN; - if ( ++g_ptm_priv_data.itf[ndev].rx_desc_pos == dma_rx_descriptor_length ) - g_ptm_priv_data.itf[ndev].rx_desc_pos = 0; - - reg_desc = *desc; - skb = get_skb_rx_pointer(reg_desc.dataptr); - - if ( !reg_desc.err ) { - new_skb = alloc_skb_rx(); - if ( new_skb != NULL ) { - skb_reserve(skb, reg_desc.byteoff); - skb_put(skb, reg_desc.datalen); - - dump_skb(skb, DUMP_SKB_LEN, (char *)__func__, ndev, ndev, 0); - - // parse protocol header - skb->dev = g_net_dev[ndev]; - skb->protocol = eth_type_trans(skb, skb->dev); - - g_net_dev[ndev]->last_rx = jiffies; - - netif_rx_ret = netif_receive_skb(skb); - - if ( netif_rx_ret != NET_RX_DROP ) { - g_ptm_priv_data.itf[ndev].stats.rx_packets++; - g_ptm_priv_data.itf[ndev].stats.rx_bytes += reg_desc.datalen; - } - - reg_desc.dataptr = ((unsigned int)new_skb->data >> 2) & 0x0FFFFFFF; - reg_desc.byteoff = RX_HEAD_MAC_ADDR_ALIGNMENT; - } - } - else - reg_desc.err = 0; - - reg_desc.datalen = rx_max_packet_size; - reg_desc.own = 1; - reg_desc.c = 0; - - // update descriptor - *desc = reg_desc; - wmb(); - - mailbox_signal(ndev, 0); - - adsl_led_flash(); - - return 0; -} - -static irqreturn_t mailbox_irq_handler(int irq, void *dev_id) -{ - unsigned int isr; - int i; - - isr = IFX_REG_R32(MBOX_IGU1_ISR); - IFX_REG_W32(isr, MBOX_IGU1_ISRC); - isr &= IFX_REG_R32(MBOX_IGU1_IER); - - while ( (i = __fls(isr)) >= 0 ) { - isr ^= 1 << i; - - if ( i >= 16 ) { - // TX - IFX_REG_W32_MASK(1 << i, 0, MBOX_IGU1_IER); - i -= 16; - if ( i < MAX_ITF_NUMBER ) - netif_wake_queue(g_net_dev[i]); - } - else { - // RX -#ifdef CONFIG_IFX_PTM_RX_INTERRUPT - while ( WRX_DMA_CHANNEL_CONFIG(i)->vlddes > 0 ) - mailbox_rx_irq_handler(i); -#else - IFX_REG_W32_MASK(1 << i, 0, MBOX_IGU1_IER); - napi_schedule(&g_ptm_priv_data.itf[i].napi); -#endif - } - } - - return IRQ_HANDLED; -} - -static INLINE void mailbox_signal(unsigned int itf, int is_tx) -{ - int count = 1000; - - if ( is_tx ) { - while ( MBOX_IGU3_ISR_ISR(itf + 16) && count > 0 ) - count--; - IFX_REG_W32(MBOX_IGU3_ISRS_SET(itf + 16), MBOX_IGU3_ISRS); - } - else { - while ( MBOX_IGU3_ISR_ISR(itf) && count > 0 ) - count--; - IFX_REG_W32(MBOX_IGU3_ISRS_SET(itf), MBOX_IGU3_ISRS); - } - - ASSERT(count != 0, "MBOX_IGU3_ISR = 0x%08x", IFX_REG_R32(MBOX_IGU3_ISR)); -} - -#ifdef CONFIG_IFX_PTM_RX_TASKLET -static void do_ptm_tasklet(unsigned long arg) -{ - unsigned int work_to_do = 25; - unsigned int work_done = 0; - - ASSERT(arg >= 0 && arg < ARRAY_SIZE(g_net_dev), "arg = %lu (wrong value)", arg); - - while ( work_done < work_to_do && WRX_DMA_CHANNEL_CONFIG(arg)->vlddes > 0 ) { - if ( mailbox_rx_irq_handler(arg) < 0 ) - break; - - work_done++; - } - - // interface down - if ( !netif_running(g_net_dev[arg]) ) - return; - - // no more traffic - if ( WRX_DMA_CHANNEL_CONFIG(arg)->vlddes == 0 ) { - // clear interrupt - IFX_REG_W32_MASK(0, 1 << arg, MBOX_IGU1_ISRC); - // double check - if ( WRX_DMA_CHANNEL_CONFIG(arg)->vlddes == 0 ) { - IFX_REG_W32_MASK(0, 1 << arg, MBOX_IGU1_IER); - return; - } - } - - // next round - tasklet_schedule(&g_ptm_tasklet[arg]); -} -#endif - -#if defined(DEBUG_DUMP_SKB) && DEBUG_DUMP_SKB -static void dump_skb(struct sk_buff *skb, u32 len, char *title, int port, int ch, int is_tx) -{ - int i; - - if ( !(ifx_ptm_dbg_enable & (is_tx ? DBG_ENABLE_MASK_DUMP_SKB_TX : DBG_ENABLE_MASK_DUMP_SKB_RX)) ) - return; - - if ( skb->len < len ) - len = skb->len; - - if ( len > rx_max_packet_size ) { - printk("too big data length: skb = %08x, skb->data = %08x, skb->len = %d\n", (u32)skb, (u32)skb->data, skb->len); - return; - } - - if ( ch >= 0 ) - printk("%s (port %d, ch %d)\n", title, port, ch); - else - printk("%s\n", title); - printk(" skb->data = %08X, skb->tail = %08X, skb->len = %d\n", (u32)skb->data, (u32)skb->tail, (int)skb->len); - for ( i = 1; i <= len; i++ ) { - if ( i % 16 == 1 ) - printk(" %4d:", i - 1); - printk(" %02X", (int)(*((char*)skb->data + i - 1) & 0xFF)); - if ( i % 16 == 0 ) - printk("\n"); - } - if ( (i - 1) % 16 != 0 ) - printk("\n"); -} -#endif - -#if defined(ENABLE_DBG_PROC) && ENABLE_DBG_PROC -static void skb_swap(struct sk_buff *skb) -{ - unsigned char tmp[8]; - unsigned char *p = skb->data; - - if ( !(p[0] & 0x01) ) { // bypass broadcast/multicast - // swap MAC - memcpy(tmp, p, 6); - memcpy(p, p + 6, 6); - memcpy(p + 6, tmp, 6); - p += 12; - - // bypass VLAN - while ( p[0] == 0x81 && p[1] == 0x00 ) - p += 4; - - // IP - if ( p[0] == 0x08 && p[1] == 0x00 ) { - p += 14; - memcpy(tmp, p, 4); - memcpy(p, p + 4, 4); - memcpy(p + 4, tmp, 4); - p += 8; - } - - dma_cache_wback((unsigned long)skb->data, (unsigned long)p - (unsigned long)skb->data); - } -} -#endif - -static INLINE void proc_file_create(void) -{ - struct proc_dir_entry *res; - - g_ptm_dir = proc_mkdir("driver/ifx_ptm", NULL); - - create_proc_read_entry("version", - 0, - g_ptm_dir, - proc_read_version, - NULL); - - res = create_proc_entry("wanmib", - 0, - g_ptm_dir); - if ( res != NULL ) { - res->read_proc = proc_read_wanmib; - res->write_proc = proc_write_wanmib; - } - -#if defined(ENABLE_FW_PROC) && ENABLE_FW_PROC - create_proc_read_entry("genconf", - 0, - g_ptm_dir, - proc_read_genconf, - NULL); - - #ifdef CONFIG_AR9 - create_proc_read_entry("regs", - 0, - g_ptm_dir, - ifx_ptm_proc_read_regs, - NULL); - #endif -#endif - -#if defined(ENABLE_DBG_PROC) && ENABLE_DBG_PROC - res = create_proc_entry("dbg", - 0, - g_ptm_dir); - if ( res != NULL ) { - res->read_proc = proc_read_dbg; - res->write_proc = proc_write_dbg; - } -#endif -} - -static INLINE void proc_file_delete(void) -{ -#if defined(ENABLE_DBG_PROC) && ENABLE_DBG_PROC - remove_proc_entry("dbg", g_ptm_dir); -#endif - -#if defined(ENABLE_FW_PROC) && ENABLE_FW_PROC - #ifdef CONFIG_AR9 - remove_proc_entry("regs", g_ptm_dir); - #endif - - remove_proc_entry("genconf", g_ptm_dir); -#endif - - remove_proc_entry("wanmib", g_ptm_dir); - - remove_proc_entry("version", g_ptm_dir); - - remove_proc_entry("driver/ifx_ptm", NULL); -} - -static int proc_read_version(char *buf, char **start, off_t offset, int count, int *eof, void *data) -{ - int len = 0; - - len += ifx_ptm_version(buf + len); - - if ( offset >= len ) { - *start = buf; - *eof = 1; - return 0; - } - *start = buf + offset; - if ( (len -= offset) > count ) - return count; - *eof = 1; - return len; -} - -static int proc_read_wanmib(char *page, char **start, off_t off, int count, int *eof, void *data) -{ - int len = 0; - int i; - char *title[] = { - "ptm0\n", - "ptmfast0\n" - }; - - for ( i = 0; i < ARRAY_SIZE(title); i++ ) { - len += sprintf(page + off + len, title[i]); - len += sprintf(page + off + len, " wrx_correct_pdu = %d\n", WAN_MIB_TABLE[i].wrx_correct_pdu); - len += sprintf(page + off + len, " wrx_correct_pdu_bytes = %d\n", WAN_MIB_TABLE[i].wrx_correct_pdu_bytes); - len += sprintf(page + off + len, " wrx_tccrc_err_pdu = %d\n", WAN_MIB_TABLE[i].wrx_tccrc_err_pdu); - len += sprintf(page + off + len, " wrx_tccrc_err_pdu_bytes = %d\n", WAN_MIB_TABLE[i].wrx_tccrc_err_pdu_bytes); - len += sprintf(page + off + len, " wrx_ethcrc_err_pdu = %d\n", WAN_MIB_TABLE[i].wrx_ethcrc_err_pdu); - len += sprintf(page + off + len, " wrx_ethcrc_err_pdu_bytes = %d\n", WAN_MIB_TABLE[i].wrx_ethcrc_err_pdu_bytes); - len += sprintf(page + off + len, " wrx_nodesc_drop_pdu = %d\n", WAN_MIB_TABLE[i].wrx_nodesc_drop_pdu); - len += sprintf(page + off + len, " wrx_len_violation_drop_pdu = %d\n", WAN_MIB_TABLE[i].wrx_len_violation_drop_pdu); - len += sprintf(page + off + len, " wrx_idle_bytes = %d\n", WAN_MIB_TABLE[i].wrx_idle_bytes); - len += sprintf(page + off + len, " wrx_nonidle_cw = %d\n", WAN_MIB_TABLE[i].wrx_nonidle_cw); - len += sprintf(page + off + len, " wrx_idle_cw = %d\n", WAN_MIB_TABLE[i].wrx_idle_cw); - len += sprintf(page + off + len, " wrx_err_cw = %d\n", WAN_MIB_TABLE[i].wrx_err_cw); - len += sprintf(page + off + len, " wtx_total_pdu = %d\n", WAN_MIB_TABLE[i].wtx_total_pdu); - len += sprintf(page + off + len, " wtx_total_bytes = %d\n", WAN_MIB_TABLE[i].wtx_total_bytes); - } - - *eof = 1; - - return len; -} - -static int proc_write_wanmib(struct file *file, const char *buf, unsigned long count, void *data) -{ - char str[2048]; - char *p; - int len, rlen; - - int i; - - len = count < sizeof(str) ? count : sizeof(str) - 1; - rlen = len - copy_from_user(str, buf, len); - while ( rlen && str[rlen - 1] <= ' ' ) - rlen--; - str[rlen] = 0; - for ( p = str; *p && *p <= ' '; p++, rlen-- ); - if ( !*p ) - return count; - - if ( stricmp(p, "clear") == 0 || stricmp(p, "clean") == 0 ) { - for ( i = 0; i < 2; i++ ) - memset((void*)&WAN_MIB_TABLE[i], 0, sizeof(WAN_MIB_TABLE[i])); - } - - return count; -} - -#if defined(ENABLE_FW_PROC) && ENABLE_FW_PROC - -static int proc_read_genconf(char *page, char **start, off_t off, int count, int *eof, void *data) -{ - int len = 0; - int len_max = off + count; - char *pstr; - char str[2048]; - int llen = 0; - int i; - unsigned long bit; - - pstr = *start = page; - - __sync(); - - llen += sprintf(str + llen, "CFG_WAN_WRDES_DELAY (0x%08X): %d\n", (unsigned int)CFG_WAN_WRDES_DELAY, IFX_REG_R32(CFG_WAN_WRDES_DELAY)); - llen += sprintf(str + llen, "CFG_WRX_DMACH_ON (0x%08X):", (unsigned int)CFG_WRX_DMACH_ON); - for ( i = 0, bit = 1; i < MAX_RX_DMA_CHANNEL_NUMBER; i++, bit <<= 1 ) - llen += sprintf(str + llen, " %d - %s", i, (IFX_REG_R32(CFG_WRX_DMACH_ON) & bit) ? "on " : "off"); - llen += sprintf(str + llen, "\n"); - llen += sprintf(str + llen, "CFG_WTX_DMACH_ON (0x%08X):", (unsigned int)CFG_WTX_DMACH_ON); - for ( i = 0, bit = 1; i < MAX_TX_DMA_CHANNEL_NUMBER; i++, bit <<= 1 ) - llen += sprintf(str + llen, " %d - %s", i, (IFX_REG_R32(CFG_WTX_DMACH_ON) & bit) ? "on " : "off"); - llen += sprintf(str + llen, "\n"); - llen += sprintf(str + llen, "CFG_WRX_LOOK_BITTH (0x%08X): %d\n", (unsigned int)CFG_WRX_LOOK_BITTH, IFX_REG_R32(CFG_WRX_LOOK_BITTH)); - llen += sprintf(str + llen, "CFG_ETH_EFMTC_CRC (0x%08X): rx_tc_crc_len - %2d, rx_tc_crc_check - %s\n", (unsigned int)CFG_ETH_EFMTC_CRC, CFG_ETH_EFMTC_CRC->rx_tc_crc_len, CFG_ETH_EFMTC_CRC->rx_tc_crc_check ? " on" : "off"); - llen += sprintf(str + llen, " rx_eth_crc_check - %s, rx_eth_crc_present - %s\n", CFG_ETH_EFMTC_CRC->rx_eth_crc_check ? " on" : "off", CFG_ETH_EFMTC_CRC->rx_eth_crc_present ? " on" : "off"); - llen += sprintf(str + llen, " tx_tc_crc_len - %2d, tx_tc_crc_gen - %s\n", CFG_ETH_EFMTC_CRC->tx_tc_crc_len, CFG_ETH_EFMTC_CRC->tx_tc_crc_gen ? " on" : "off"); - llen += sprintf(str + llen, " tx_eth_crc_gen - %s\n", CFG_ETH_EFMTC_CRC->tx_eth_crc_gen ? " on" : "off"); - - llen += sprintf(str + llen, "RX Port:\n"); - for ( i = 0; i < MAX_RX_DMA_CHANNEL_NUMBER; i++ ) - llen += sprintf(str + llen, " %d (0x%08X). mfs - %5d, dmach - %d, local_state - %d, partner_state - %d\n", i, (unsigned int)WRX_PORT_CONFIG(i), WRX_PORT_CONFIG(i)->mfs, WRX_PORT_CONFIG(i)->dmach, WRX_PORT_CONFIG(i)->local_state, WRX_PORT_CONFIG(i)->partner_state); - llen += sprintf(str + llen, "RX DMA Channel:\n"); - for ( i = 0; i < MAX_RX_DMA_CHANNEL_NUMBER; i++ ) - llen += sprintf(str + llen, " %d (0x%08X). desba - 0x%08X (0x%08X), deslen - %d, vlddes - %d\n", i, (unsigned int)WRX_DMA_CHANNEL_CONFIG(i), WRX_DMA_CHANNEL_CONFIG(i)->desba, ((unsigned int)WRX_DMA_CHANNEL_CONFIG(i)->desba << 2) | KSEG1, WRX_DMA_CHANNEL_CONFIG(i)->deslen, WRX_DMA_CHANNEL_CONFIG(i)->vlddes); - - llen += sprintf(str + llen, "TX Port:\n"); - for ( i = 0; i < MAX_TX_DMA_CHANNEL_NUMBER; i++ ) - llen += sprintf(str + llen, " %d (0x%08X). tx_cwth2 - %d, tx_cwth1 - %d\n", i, (unsigned int)WTX_PORT_CONFIG(i), WTX_PORT_CONFIG(i)->tx_cwth2, WTX_PORT_CONFIG(i)->tx_cwth1); - llen += sprintf(str + llen, "TX DMA Channel:\n"); - for ( i = 0; i < MAX_TX_DMA_CHANNEL_NUMBER; i++ ) - llen += sprintf(str + llen, " %d (0x%08X). desba - 0x%08X (0x%08X), deslen - %d, vlddes - %d\n", i, (unsigned int)WTX_DMA_CHANNEL_CONFIG(i), WTX_DMA_CHANNEL_CONFIG(i)->desba, ((unsigned int)WTX_DMA_CHANNEL_CONFIG(i)->desba << 2) | KSEG1, WTX_DMA_CHANNEL_CONFIG(i)->deslen, WTX_DMA_CHANNEL_CONFIG(i)->vlddes); - - if ( len <= off && len + llen > off ) - { - memcpy(pstr, str + off - len, len + llen - off); - pstr += len + llen - off; - } - else if ( len > off ) - { - memcpy(pstr, str, llen); - pstr += llen; - } - len += llen; - if ( len >= len_max ) - goto PROC_READ_GENCONF_OVERRUN_END; - - *eof = 1; - - return len - off; - -PROC_READ_GENCONF_OVERRUN_END: - return len - llen - off; -} - -#endif // defined(ENABLE_FW_PROC) && ENABLE_FW_PROC - -#if defined(ENABLE_DBG_PROC) && ENABLE_DBG_PROC - -static int proc_read_dbg(char *page, char **start, off_t off, int count, int *eof, void *data) -{ - int len = 0; - - len += sprintf(page + off + len, "error print - %s\n", (ifx_ptm_dbg_enable & DBG_ENABLE_MASK_ERR) ? "enabled" : "disabled"); - len += sprintf(page + off + len, "debug print - %s\n", (ifx_ptm_dbg_enable & DBG_ENABLE_MASK_DEBUG_PRINT) ? "enabled" : "disabled"); - len += sprintf(page + off + len, "assert - %s\n", (ifx_ptm_dbg_enable & DBG_ENABLE_MASK_ASSERT) ? "enabled" : "disabled"); - len += sprintf(page + off + len, "dump rx skb - %s\n", (ifx_ptm_dbg_enable & DBG_ENABLE_MASK_DUMP_SKB_RX) ? "enabled" : "disabled"); - len += sprintf(page + off + len, "dump tx skb - %s\n", (ifx_ptm_dbg_enable & DBG_ENABLE_MASK_DUMP_SKB_TX) ? "enabled" : "disabled"); - len += sprintf(page + off + len, "mac swap - %s\n", (ifx_ptm_dbg_enable & DBG_ENABLE_MASK_MAC_SWAP) ? "enabled" : "disabled"); - - *eof = 1; - - return len; -} - -static int proc_write_dbg(struct file *file, const char *buf, unsigned long count, void *data) -{ - static const char *dbg_enable_mask_str[] = { - " error print", - " err", - " debug print", - " dbg", - " assert", - " assert", - " dump rx skb", - " rx", - " dump tx skb", - " tx", - " dump init", - " init", - " dump qos", - " qos", - " mac swap", - " swap", - " all" - }; - static const int dbg_enable_mask_str_len[] = { - 12, 4, - 12, 4, - 7, 7, - 12, 3, - 12, 3, - 10, 5, - 9, 4, - 9, 5, - 4 - }; - unsigned int dbg_enable_mask[] = { - DBG_ENABLE_MASK_ERR, - DBG_ENABLE_MASK_DEBUG_PRINT, - DBG_ENABLE_MASK_ASSERT, - DBG_ENABLE_MASK_DUMP_SKB_RX, - DBG_ENABLE_MASK_DUMP_SKB_TX, - DBG_ENABLE_MASK_DUMP_INIT, - DBG_ENABLE_MASK_DUMP_QOS, - DBG_ENABLE_MASK_MAC_SWAP, - DBG_ENABLE_MASK_ALL - }; - - char str[2048]; - char *p; - - int len, rlen; - - int f_enable = 0; - int i; - - len = count < sizeof(str) ? count : sizeof(str) - 1; - rlen = len - copy_from_user(str, buf, len); - while ( rlen && str[rlen - 1] <= ' ' ) - rlen--; - str[rlen] = 0; - for ( p = str; *p && *p <= ' '; p++, rlen-- ); - if ( !*p ) - return 0; - - // debugging feature for enter/leave showtime - if ( strincmp(p, "enter", 5) == 0 && ifx_mei_atm_showtime_enter != NULL ) - ifx_mei_atm_showtime_enter(NULL, NULL); - else if ( strincmp(p, "leave", 5) == 0 && ifx_mei_atm_showtime_exit != NULL ) - ifx_mei_atm_showtime_exit(); - - if ( strincmp(p, "enable", 6) == 0 ) { - p += 6; - f_enable = 1; - } - else if ( strincmp(p, "disable", 7) == 0 ) { - p += 7; - f_enable = -1; - } - else if ( strincmp(p, "help", 4) == 0 || *p == '?' ) { - printk("echo [err/dbg/assert/rx/tx/init/qos/swap/all] > /proc/driver/ifx_ptm/dbg\n"); - } - - if ( f_enable ) { - if ( *p == 0 ) { - if ( f_enable > 0 ) - ifx_ptm_dbg_enable |= DBG_ENABLE_MASK_ALL & ~DBG_ENABLE_MASK_MAC_SWAP; - else - ifx_ptm_dbg_enable &= ~DBG_ENABLE_MASK_ALL | DBG_ENABLE_MASK_MAC_SWAP; - } - else { - do { - for ( i = 0; i < ARRAY_SIZE(dbg_enable_mask_str); i++ ) - if ( strincmp(p, dbg_enable_mask_str[i], dbg_enable_mask_str_len[i]) == 0 ) { - if ( f_enable > 0 ) - ifx_ptm_dbg_enable |= dbg_enable_mask[i >> 1]; - else - ifx_ptm_dbg_enable &= ~dbg_enable_mask[i >> 1]; - p += dbg_enable_mask_str_len[i]; - break; - } - } while ( i < ARRAY_SIZE(dbg_enable_mask_str) ); - } - } - - return count; -} - -#endif // defined(ENABLE_DBG_PROC) && ENABLE_DBG_PROC - -static INLINE int stricmp(const char *p1, const char *p2) -{ - int c1, c2; - - while ( *p1 && *p2 ) - { - c1 = *p1 >= 'A' && *p1 <= 'Z' ? *p1 + 'a' - 'A' : *p1; - c2 = *p2 >= 'A' && *p2 <= 'Z' ? *p2 + 'a' - 'A' : *p2; - if ( (c1 -= c2) ) - return c1; - p1++; - p2++; - } - - return *p1 - *p2; -} - -#if defined(ENABLE_DBG_PROC) && ENABLE_DBG_PROC -static INLINE int strincmp(const char *p1, const char *p2, int n) -{ - int c1 = 0, c2; - - while ( n && *p1 && *p2 ) - { - c1 = *p1 >= 'A' && *p1 <= 'Z' ? *p1 + 'a' - 'A' : *p1; - c2 = *p2 >= 'A' && *p2 <= 'Z' ? *p2 + 'a' - 'A' : *p2; - if ( (c1 -= c2) ) - return c1; - p1++; - p2++; - n--; - } - - return n ? *p1 - *p2 : c1; -} -#endif - -static INLINE int ifx_ptm_version(char *buf) -{ - int len = 0; - unsigned int major, minor; - - ifx_ptm_get_fw_ver(&major, &minor); - - len += sprintf(buf + len, "PTM %d.%d.%d", IFX_PTM_VER_MAJOR, IFX_PTM_VER_MID, IFX_PTM_VER_MINOR); - len += sprintf(buf + len, " PTM (E1) firmware version %d.%d\n", major, minor); - - return len; -} - -static INLINE void check_parameters(void) -{ - /* There is a delay between PPE write descriptor and descriptor is */ - /* really stored in memory. Host also has this delay when writing */ - /* descriptor. So PPE will use this value to determine if the write */ - /* operation makes effect. */ - if ( write_desc_delay < 0 ) - write_desc_delay = 0; - - /* Because of the limitation of length field in descriptors, the packet */ - /* size could not be larger than 64K minus overhead size. */ - if ( rx_max_packet_size < ETH_MIN_FRAME_LENGTH ) - rx_max_packet_size = ETH_MIN_FRAME_LENGTH; - else if ( rx_max_packet_size > 65536 - 1 ) - rx_max_packet_size = 65536 - 1; - - if ( dma_rx_descriptor_length < 2 ) - dma_rx_descriptor_length = 2; - if ( dma_tx_descriptor_length < 2 ) - dma_tx_descriptor_length = 2; -} - -static INLINE int init_priv_data(void) -{ - void *p; - int i; - struct rx_descriptor rx_desc = {0}; - struct sk_buff *skb; - volatile struct rx_descriptor *p_rx_desc; - volatile struct tx_descriptor *p_tx_desc; - struct sk_buff **ppskb; - - // clear ptm private data structure - memset(&g_ptm_priv_data, 0, sizeof(g_ptm_priv_data)); - - // allocate memory for RX descriptors - p = kzalloc(MAX_ITF_NUMBER * dma_rx_descriptor_length * sizeof(struct rx_descriptor) + DESC_ALIGNMENT, GFP_KERNEL); - if ( p == NULL ) - return -1; - dma_cache_inv((unsigned long)p, MAX_ITF_NUMBER * dma_rx_descriptor_length * sizeof(struct rx_descriptor) + DESC_ALIGNMENT); - g_ptm_priv_data.rx_desc_base = p; - //p = (void *)((((unsigned int)p + DESC_ALIGNMENT - 1) & ~(DESC_ALIGNMENT - 1)) | KSEG1); - - // allocate memory for TX descriptors - p = kzalloc(MAX_ITF_NUMBER * dma_tx_descriptor_length * sizeof(struct tx_descriptor) + DESC_ALIGNMENT, GFP_KERNEL); - if ( p == NULL ) - return -1; - dma_cache_inv((unsigned long)p, MAX_ITF_NUMBER * dma_tx_descriptor_length * sizeof(struct tx_descriptor) + DESC_ALIGNMENT); - g_ptm_priv_data.tx_desc_base = p; - - // allocate memroy for TX skb pointers - p = kzalloc(MAX_ITF_NUMBER * dma_tx_descriptor_length * sizeof(struct sk_buff *) + 4, GFP_KERNEL); - if ( p == NULL ) - return -1; - dma_cache_wback_inv((unsigned long)p, MAX_ITF_NUMBER * dma_tx_descriptor_length * sizeof(struct sk_buff *) + 4); - g_ptm_priv_data.tx_skb_base = p; - - p_rx_desc = (volatile struct rx_descriptor *)((((unsigned int)g_ptm_priv_data.rx_desc_base + DESC_ALIGNMENT - 1) & ~(DESC_ALIGNMENT - 1)) | KSEG1); - p_tx_desc = (volatile struct tx_descriptor *)((((unsigned int)g_ptm_priv_data.tx_desc_base + DESC_ALIGNMENT - 1) & ~(DESC_ALIGNMENT - 1)) | KSEG1); - ppskb = (struct sk_buff **)(((unsigned int)g_ptm_priv_data.tx_skb_base + 3) & ~3); - for ( i = 0; i < MAX_ITF_NUMBER; i++ ) { - g_ptm_priv_data.itf[i].rx_desc = &p_rx_desc[i * dma_rx_descriptor_length]; - g_ptm_priv_data.itf[i].tx_desc = &p_tx_desc[i * dma_tx_descriptor_length]; - g_ptm_priv_data.itf[i].tx_skb = &ppskb[i * dma_tx_descriptor_length]; - } - - rx_desc.own = 1; - rx_desc.c = 0; - rx_desc.sop = 1; - rx_desc.eop = 1; - rx_desc.byteoff = RX_HEAD_MAC_ADDR_ALIGNMENT; - rx_desc.id = 0; - rx_desc.err = 0; - rx_desc.datalen = rx_max_packet_size; - for ( i = 0; i < MAX_ITF_NUMBER * dma_rx_descriptor_length; i++ ) { - skb = alloc_skb_rx(); - if ( skb == NULL ) - return -1; - rx_desc.dataptr = ((unsigned int)skb->data >> 2) & 0x0FFFFFFF; - p_rx_desc[i] = rx_desc; - } - - return 0; -} - -static INLINE void clear_priv_data(void) -{ - int i, j; - struct sk_buff *skb; - - for ( i = 0; i < MAX_ITF_NUMBER; i++ ) { - if ( g_ptm_priv_data.itf[i].tx_skb != NULL ) { - for ( j = 0; j < dma_tx_descriptor_length; j++ ) - if ( g_ptm_priv_data.itf[i].tx_skb[j] != NULL ) - dev_kfree_skb_any(g_ptm_priv_data.itf[i].tx_skb[j]); - } - if ( g_ptm_priv_data.itf[i].rx_desc != NULL ) { - for ( j = 0; j < dma_rx_descriptor_length; j++ ) { - if ( g_ptm_priv_data.itf[i].rx_desc[j].sop || g_ptm_priv_data.itf[i].rx_desc[j].eop ) { // descriptor initialized - skb = get_skb_rx_pointer(g_ptm_priv_data.itf[i].rx_desc[j].dataptr); - dev_kfree_skb_any(skb); - } - } - } - } - - if ( g_ptm_priv_data.rx_desc_base != NULL ) - kfree(g_ptm_priv_data.rx_desc_base); - - if ( g_ptm_priv_data.tx_desc_base != NULL ) - kfree(g_ptm_priv_data.tx_desc_base); - - if ( g_ptm_priv_data.tx_skb_base != NULL ) - kfree(g_ptm_priv_data.tx_skb_base); -} - -static INLINE void init_tables(void) -{ - int i; - volatile unsigned int *p; - struct wrx_dma_channel_config rx_config = {0}; - struct wtx_dma_channel_config tx_config = {0}; - struct wrx_port_cfg_status rx_port_cfg = { 0 }; - struct wtx_port_cfg tx_port_cfg = { 0 }; - - /* - * CDM Block 1 - */ - IFX_REG_W32(CDM_CFG_RAM1_SET(0x00) | CDM_CFG_RAM0_SET(0x00), CDM_CFG); // CDM block 1 must be data memory and mapped to 0x5000 (dword addr) - p = CDM_DATA_MEMORY(0, 0); // Clear CDM block 1 - for ( i = 0; i < CDM_DATA_MEMORY_DWLEN; i++, p++ ) - IFX_REG_W32(0, p); - - /* - * General Registers - */ - IFX_REG_W32(write_desc_delay, CFG_WAN_WRDES_DELAY); - IFX_REG_W32((1 << MAX_RX_DMA_CHANNEL_NUMBER) - 1, CFG_WRX_DMACH_ON); - IFX_REG_W32((1 << MAX_TX_DMA_CHANNEL_NUMBER) - 1, CFG_WTX_DMACH_ON); - - IFX_REG_W32(8, CFG_WRX_LOOK_BITTH); // WAN RX EFM-TC Looking Threshold - - IFX_REG_W32(eth_efmtc_crc_cfg, CFG_ETH_EFMTC_CRC); - - /* - * WRX DMA Channel Configuration Table - */ - rx_config.deslen = dma_rx_descriptor_length; - rx_port_cfg.mfs = ETH_MAX_FRAME_LENGTH; - rx_port_cfg.local_state = 0; // looking for sync - rx_port_cfg.partner_state = 0; // parter receiver is out of sync - - for ( i = 0; i < MAX_RX_DMA_CHANNEL_NUMBER; i++ ) { - rx_config.desba = ((unsigned int)g_ptm_priv_data.itf[i].rx_desc >> 2) & 0x0FFFFFFF; - *WRX_DMA_CHANNEL_CONFIG(i) = rx_config; - - rx_port_cfg.dmach = i; - *WRX_PORT_CONFIG(i) = rx_port_cfg; - } - - /* - * WTX DMA Channel Configuration Table - */ - tx_config.deslen = dma_tx_descriptor_length; - tx_port_cfg.tx_cwth1 = 5; - tx_port_cfg.tx_cwth2 = 4; - - for ( i = 0; i < MAX_TX_DMA_CHANNEL_NUMBER; i++ ) { - tx_config.desba = ((unsigned int)g_ptm_priv_data.itf[i].tx_desc >> 2) & 0x0FFFFFFF; - *WTX_DMA_CHANNEL_CONFIG(i) = tx_config; - - *WTX_PORT_CONFIG(i) = tx_port_cfg; - } -} - - - -/* - * #################################### - * Global Function - * #################################### - */ - -static int ptm_showtime_enter(struct port_cell_info *port_cell, void *xdata_addr) -{ - - g_showtime = 1; - - printk("enter showtime\n"); - - return 0; -} - -static int ptm_showtime_exit(void) -{ - if ( !g_showtime ) - return -1; - - g_showtime = 0; - - printk("leave showtime\n"); - - return 0; -} - - - -/* - * #################################### - * Init/Cleanup API - * #################################### - */ - -/* - * Description: - * Initialize global variables, PP32, comunication structures, register IRQ - * and register device. - * Input: - * none - * Output: - * 0 --- successful - * else --- failure, usually it is negative value of error code - */ -static int ifx_ptm_init(void) -{ - int ret; - struct port_cell_info port_cell = {0}; - void *xdata_addr = NULL; - int i; - char ver_str[256]; - - check_parameters(); - - ret = init_priv_data(); - if ( ret != 0 ) { - err("INIT_PRIV_DATA_FAIL"); - goto INIT_PRIV_DATA_FAIL; - } - - ifx_ptm_init_chip(); - init_tables(); - - for ( i = 0; i < ARRAY_SIZE(g_net_dev); i++ ) { - g_net_dev[i] = alloc_netdev(0, g_net_dev_name[i], ether_setup); - if ( g_net_dev[i] == NULL ) - goto ALLOC_NETDEV_FAIL; - ptm_setup(g_net_dev[i], i); - } - - for ( i = 0; i < ARRAY_SIZE(g_net_dev); i++ ) { - ret = register_netdev(g_net_dev[i]); - if ( ret != 0 ) - goto REGISTER_NETDEV_FAIL; - } - - /* register interrupt handler */ - ret = request_irq(PPE_MAILBOX_IGU1_INT, mailbox_irq_handler, IRQF_DISABLED, "ptm_mailbox_isr", &g_ptm_priv_data); - if ( ret ) { - if ( ret == -EBUSY ) { - err("IRQ may be occupied by other driver, please reconfig to disable it."); - } - else { - err("request_irq fail"); - } - goto REQUEST_IRQ_PPE_MAILBOX_IGU1_INT_FAIL; - } - disable_irq(PPE_MAILBOX_IGU1_INT); - - ret = ifx_pp32_start(0); - if ( ret ) { - err("ifx_pp32_start fail!"); - goto PP32_START_FAIL; - } - IFX_REG_W32(0, MBOX_IGU1_IER); - IFX_REG_W32(~0, MBOX_IGU1_ISRC); - - enable_irq(PPE_MAILBOX_IGU1_INT); - - - proc_file_create(); - - port_cell.port_num = 1; - ifx_mei_atm_showtime_check(&g_showtime, &port_cell, &xdata_addr); - - ifx_mei_atm_showtime_enter = ptm_showtime_enter; - ifx_mei_atm_showtime_exit = ptm_showtime_exit; - - ifx_ptm_version(ver_str); - printk(KERN_INFO "%s", ver_str); - - printk("ifxmips_ptm: PTM init succeed\n"); - - return 0; - -PP32_START_FAIL: - free_irq(PPE_MAILBOX_IGU1_INT, &g_ptm_priv_data); -REQUEST_IRQ_PPE_MAILBOX_IGU1_INT_FAIL: - i = ARRAY_SIZE(g_net_dev); -REGISTER_NETDEV_FAIL: - while ( i-- ) - unregister_netdev(g_net_dev[i]); - i = ARRAY_SIZE(g_net_dev); -ALLOC_NETDEV_FAIL: - while ( i-- ) { - free_netdev(g_net_dev[i]); - g_net_dev[i] = NULL; - } -INIT_PRIV_DATA_FAIL: - clear_priv_data(); - printk("ifxmips_ptm: PTM init failed\n"); - return ret; -} - -/* - * Description: - * Release memory, free IRQ, and deregister device. - * Input: - * none - * Output: - * none - */ -static void __exit ifx_ptm_exit(void) -{ - int i; - - ifx_mei_atm_showtime_enter = NULL; - ifx_mei_atm_showtime_exit = NULL; - - proc_file_delete(); - - - ifx_pp32_stop(0); - - free_irq(PPE_MAILBOX_IGU1_INT, &g_ptm_priv_data); - - for ( i = 0; i < ARRAY_SIZE(g_net_dev); i++ ) - unregister_netdev(g_net_dev[i]); - - for ( i = 0; i < ARRAY_SIZE(g_net_dev); i++ ) { - free_netdev(g_net_dev[i]); - g_net_dev[i] = NULL; - } - - ifx_ptm_uninit_chip(); - - clear_priv_data(); -} - -module_init(ifx_ptm_init); -module_exit(ifx_ptm_exit); -- cgit v1.2.3