diff options
Diffstat (limited to 'embeddedsw/ThirdParty/sw_services/lwip211/src/contrib/ports/xilinx/netif/xemacpsif.c')
| -rw-r--r-- | embeddedsw/ThirdParty/sw_services/lwip211/src/contrib/ports/xilinx/netif/xemacpsif.c | 795 |
1 files changed, 795 insertions, 0 deletions
diff --git a/embeddedsw/ThirdParty/sw_services/lwip211/src/contrib/ports/xilinx/netif/xemacpsif.c b/embeddedsw/ThirdParty/sw_services/lwip211/src/contrib/ports/xilinx/netif/xemacpsif.c new file mode 100644 index 0000000..1bf3abb --- /dev/null +++ b/embeddedsw/ThirdParty/sw_services/lwip211/src/contrib/ports/xilinx/netif/xemacpsif.c @@ -0,0 +1,795 @@ +/* + * Copyright (C) 2010 - 2021 Xilinx, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the lwIP TCP/IP stack. + * + */ + +#include <stdio.h> +#include <string.h> + +#include <xparameters.h> +#include "lwipopts.h" +#include "xlwipconfig.h" +#include "lwip/opt.h" +#include "lwip/def.h" +#include "lwip/mem.h" +#include "lwip/pbuf.h" +#include "lwip/sys.h" +#include "lwip/stats.h" +#include "lwip/igmp.h" + +#include "netif/etharp.h" +#include "netif/xemacpsif.h" +#include "netif/xadapter.h" +#include "netif/xpqueue.h" +#include "xparameters.h" +#include "xscugic.h" +#include "xemacps.h" + +#if LWIP_IPV6 +#include "lwip/ethip6.h" +#endif + + +/* Define those to better describe your network interface. */ +#define IFNAME0 't' +#define IFNAME1 'e' + +#if LWIP_IGMP +static err_t xemacpsif_mac_filter_update (struct netif *netif, + ip_addr_t *group, u8_t action); + +static u8_t xemacps_mcast_entry_mask = 0; +#endif + +#if LWIP_IPV6 && LWIP_IPV6_MLD +static err_t xemacpsif_mld6_mac_filter_update (struct netif *netif, + ip_addr_t *group, u8_t action); + +static u8_t xemacps_mld6_mcast_entry_mask; +#endif + +XEmacPs_Config *mac_config; +struct netif *NetIf; + +#if !NO_SYS +#if defined(__arm__) && !defined(ARMR5) +int32_t lExpireCounter = 0; +#define RESETRXTIMEOUT 10 +#endif +#endif + +#if LWIP_UDP_OPT_BLOCK_TX_TILL_COMPLETE +extern volatile u32_t notifyinfo[4*XLWIP_CONFIG_N_TX_DESC]; +#endif + +/* + * this function is always called with interrupts off + * this function also assumes that there are available BD's + */ +#if LWIP_UDP_OPT_BLOCK_TX_TILL_COMPLETE +static err_t _unbuffered_low_level_output(xemacpsif_s *xemacpsif, + struct pbuf *p, u32_t block_till_tx_complete, u32_t *to_block_index ) +#else +static err_t _unbuffered_low_level_output(xemacpsif_s *xemacpsif, + struct pbuf *p) +#endif +{ + XStatus status = 0; + err_t err = ERR_MEM; + +#if ETH_PAD_SIZE + pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */ +#endif +#if LWIP_UDP_OPT_BLOCK_TX_TILL_COMPLETE + if (block_till_tx_complete == 1) { + status = emacps_sgsend(xemacpsif, p, 1, to_block_index); + } else { + status = emacps_sgsend(xemacpsif, p, 0, to_block_index); + } +#else + status = emacps_sgsend(xemacpsif, p); +#endif + if (status != XST_SUCCESS) { +#if LINK_STATS + lwip_stats.link.drop++; +#endif + } else { + err = ERR_OK; + } + +#if ETH_PAD_SIZE + pbuf_header(p, ETH_PAD_SIZE); /* reclaim the padding word */ +#endif + +#if LINK_STATS + lwip_stats.link.xmit++; +#endif /* LINK_STATS */ + + return err; + +} + +/* + * low_level_output(): + * + * Should do the actual transmission of the packet. The packet is + * contained in the pbuf that is passed to the function. This pbuf + * might be chained. + * + */ + +static err_t low_level_output(struct netif *netif, struct pbuf *p) +{ + err_t err = ERR_MEM; + s32_t freecnt; + XEmacPs_BdRing *txring; +#if LWIP_UDP_OPT_BLOCK_TX_TILL_COMPLETE + u32_t notfifyblocksleepcntr; + u32_t to_block_index; +#endif + + SYS_ARCH_DECL_PROTECT(lev); + struct xemac_s *xemac = (struct xemac_s *)(netif->state); + xemacpsif_s *xemacpsif = (xemacpsif_s *)(xemac->state); + + SYS_ARCH_PROTECT(lev); + /* check if space is available to send */ + freecnt = is_tx_space_available(xemacpsif); + if (freecnt <= 5) { + txring = &(XEmacPs_GetTxRing(&xemacpsif->emacps)); + process_sent_bds(xemacpsif, txring); + } + + if (is_tx_space_available(xemacpsif)) { +#if LWIP_UDP_OPT_BLOCK_TX_TILL_COMPLETE + if (netif_is_opt_block_tx_set(netif, NETIF_ENABLE_BLOCKING_TX_FOR_PACKET)) { + err = _unbuffered_low_level_output(xemacpsif, p, 1, &to_block_index); + } else { + err = _unbuffered_low_level_output(xemacpsif, p, 0, &to_block_index); + } +#else + err = _unbuffered_low_level_output(xemacpsif, p); +#endif + } else { +#if LINK_STATS + lwip_stats.link.drop++; +#endif + printf("pack dropped, no space\r\n"); + SYS_ARCH_UNPROTECT(lev); + goto return_pack_dropped; + } + SYS_ARCH_UNPROTECT(lev); + +#if LWIP_UDP_OPT_BLOCK_TX_TILL_COMPLETE + if (netif_is_opt_block_tx_set(netif, NETIF_ENABLE_BLOCKING_TX_FOR_PACKET)) { + /* Wait for approx 1 second before timing out */ + notfifyblocksleepcntr = 900000; + while(notifyinfo[to_block_index] == 1) { + usleep(1); + notfifyblocksleepcntr--; + if (notfifyblocksleepcntr <= 0) { + err = ERR_TIMEOUT; + break; + } + } + } + netif_clear_opt_block_tx(netif, NETIF_ENABLE_BLOCKING_TX_FOR_PACKET); +#endif +return_pack_dropped: + return err; +} + +/* + * low_level_input(): + * + * Should allocate a pbuf and transfer the bytes of the incoming + * packet from the interface into the pbuf. + * + */ +static struct pbuf * low_level_input(struct netif *netif) +{ + struct xemac_s *xemac = (struct xemac_s *)(netif->state); + xemacpsif_s *xemacpsif = (xemacpsif_s *)(xemac->state); + struct pbuf *p; + + /* see if there is data to process */ + if (pq_qlength(xemacpsif->recv_q) == 0) + return NULL; + + /* return one packet from receive q */ + p = (struct pbuf *)pq_dequeue(xemacpsif->recv_q); + return p; +} + +/* + * xemacpsif_output(): + * + * This function is called by the TCP/IP stack when an IP packet + * should be sent. It calls the function called low_level_output() to + * do the actual transmission of the packet. + * + */ + +static err_t xemacpsif_output(struct netif *netif, struct pbuf *p, + const ip_addr_t *ipaddr) +{ + /* resolve hardware address, then send (or queue) packet */ + return etharp_output(netif, p, ipaddr); +} + +/* + * xemacpsif_input(): + * + * This function should be called when a packet is ready to be read + * from the interface. It uses the function low_level_input() that + * should handle the actual reception of bytes from the network + * interface. + * + * Returns the number of packets read (max 1 packet on success, + * 0 if there are no packets) + * + */ + +s32_t xemacpsif_input(struct netif *netif) +{ + struct eth_hdr *ethhdr; + struct pbuf *p; + SYS_ARCH_DECL_PROTECT(lev); + +#if !NO_SYS + while (1) +#endif + { + /* move received packet into a new pbuf */ + SYS_ARCH_PROTECT(lev); + p = low_level_input(netif); + SYS_ARCH_UNPROTECT(lev); + + /* no packet could be read, silently ignore this */ + if (p == NULL) { + return 0; + } + + /* points to packet payload, which starts with an Ethernet header */ + ethhdr = p->payload; + + #if LINK_STATS + lwip_stats.link.recv++; + #endif /* LINK_STATS */ + + switch (htons(ethhdr->type)) { + /* IP or ARP packet? */ + case ETHTYPE_IP: + case ETHTYPE_ARP: + #if LWIP_IPV6 + /*IPv6 Packet?*/ + case ETHTYPE_IPV6: + #endif + #if PPPOE_SUPPORT + /* PPPoE packet? */ + case ETHTYPE_PPPOEDISC: + case ETHTYPE_PPPOE: + #endif /* PPPOE_SUPPORT */ + /* full packet send to tcpip_thread to process */ + if (netif->input(p, netif) != ERR_OK) { + LWIP_DEBUGF(NETIF_DEBUG, ("xemacpsif_input: IP input error\r\n")); + pbuf_free(p); + p = NULL; + } + break; + + default: + pbuf_free(p); + p = NULL; + break; + } + } + + return 1; +} + +#if !NO_SYS +#if defined(__arm__) && !defined(ARMR5) +void vTimerCallback( TimerHandle_t pxTimer ) +{ + /* Do something if the pxTimer parameter is NULL */ + configASSERT(pxTimer); + + lExpireCounter++; + /* If the timer has expired 100 times then reset RX */ + if(lExpireCounter >= RESETRXTIMEOUT) { + lExpireCounter = 0; + xemacpsif_resetrx_on_no_rxdata(NetIf); + } +} +#endif +#endif + +static err_t low_level_init(struct netif *netif) +{ + UINTPTR mac_address = (UINTPTR)(netif->state); + struct xemac_s *xemac; + xemacpsif_s *xemacpsif; + u32 dmacrreg; + + s32_t status = XST_SUCCESS; + + NetIf = netif; + + xemacpsif = mem_malloc(sizeof *xemacpsif); + if (xemacpsif == NULL) { + LWIP_DEBUGF(NETIF_DEBUG, ("xemacpsif_init: out of memory\r\n")); + return ERR_MEM; + } + + xemac = mem_malloc(sizeof *xemac); + if (xemac == NULL) { + LWIP_DEBUGF(NETIF_DEBUG, ("xemacpsif_init: out of memory\r\n")); + return ERR_MEM; + } + + xemac->state = (void *)xemacpsif; + xemac->topology_index = xtopology_find_index(mac_address); + xemac->type = xemac_type_emacps; + + xemacpsif->send_q = NULL; + xemacpsif->recv_q = pq_create_queue(); + if (!xemacpsif->recv_q) + return ERR_MEM; + + /* maximum transfer unit */ +#ifdef ZYNQMP_USE_JUMBO + netif->mtu = XEMACPS_MTU_JUMBO - XEMACPS_HDR_SIZE; +#else + netif->mtu = XEMACPS_MTU - XEMACPS_HDR_SIZE; +#endif + +#if LWIP_IGMP + netif->igmp_mac_filter = xemacpsif_mac_filter_update; +#endif + +#if LWIP_IPV6 && LWIP_IPV6_MLD + netif->mld_mac_filter = xemacpsif_mld6_mac_filter_update; +#endif + + netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | + NETIF_FLAG_LINK_UP; + +#if LWIP_IPV6 && LWIP_IPV6_MLD + netif->flags |= NETIF_FLAG_MLD6; +#endif + +#if LWIP_IGMP + netif->flags |= NETIF_FLAG_IGMP; +#endif + +#if !NO_SYS + sys_sem_new(&xemac->sem_rx_data_available, 0); +#endif + /* obtain config of this emac */ + mac_config = (XEmacPs_Config *)xemacps_lookup_config((unsigned)(UINTPTR)netif->state); + +#if defined (__aarch64__) && (EL1_NONSECURE == 1) + /* Request device to indicate that this library is using it */ + if (mac_config->BaseAddress == VERSAL_EMACPS_0_BASEADDR) { + Xil_Smc(PM_REQUEST_DEVICE_SMC_FID, DEV_GEM_0, 1, 0, 100, 1, 0, 0); + } + if (mac_config->BaseAddress == VERSAL_EMACPS_0_BASEADDR) { + Xil_Smc(PM_REQUEST_DEVICE_SMC_FID, DEV_GEM_1, 1, 0, 100, 1, 0, 0); + } +#endif + + status = XEmacPs_CfgInitialize(&xemacpsif->emacps, mac_config, + mac_config->BaseAddress); + if (status != XST_SUCCESS) { + xil_printf("In %s:EmacPs Configuration Failed....\r\n", __func__); + } + + /* initialize the mac */ + init_emacps(xemacpsif, netif); + + dmacrreg = XEmacPs_ReadReg(xemacpsif->emacps.Config.BaseAddress, + XEMACPS_DMACR_OFFSET); + dmacrreg = dmacrreg | (0x00000010); + XEmacPs_WriteReg(xemacpsif->emacps.Config.BaseAddress, + XEMACPS_DMACR_OFFSET, dmacrreg); +#if !NO_SYS +#if defined(__arm__) && !defined(ARMR5) + /* Freertos tick is 10ms by default; set period to the same */ + xemac->xTimer = xTimerCreate("Timer", 10, pdTRUE, ( void * ) 1, vTimerCallback); + if (xemac->xTimer == NULL) { + xil_printf("In %s:Timer creation failed....\r\n", __func__); + } else { + if(xTimerStart(xemac->xTimer, 0) != pdPASS) { + xil_printf("In %s:Timer start failed....\r\n", __func__); + } + } +#endif +#endif + setup_isr(xemac); + init_dma(xemac); + start_emacps(xemacpsif); + + /* replace the state in netif (currently the emac baseaddress) + * with the mac instance pointer. + */ + netif->state = (void *)xemac; + + return ERR_OK; +} + +void HandleEmacPsError(struct xemac_s *xemac) +{ + xemacpsif_s *xemacpsif; + s32_t status = XST_SUCCESS; + u32 dmacrreg; + + SYS_ARCH_DECL_PROTECT(lev); + SYS_ARCH_PROTECT(lev); + + xemacpsif = (xemacpsif_s *)(xemac->state); + free_txrx_pbufs(xemacpsif); + status = XEmacPs_CfgInitialize(&xemacpsif->emacps, mac_config, + mac_config->BaseAddress); + if (status != XST_SUCCESS) { + xil_printf("In %s:EmacPs Configuration Failed....\r\n", __func__); + } + /* initialize the mac */ + init_emacps_on_error(xemacpsif, NetIf); + dmacrreg = XEmacPs_ReadReg(xemacpsif->emacps.Config.BaseAddress, + XEMACPS_DMACR_OFFSET); + dmacrreg = dmacrreg | (0x01000000); + XEmacPs_WriteReg(xemacpsif->emacps.Config.BaseAddress, + XEMACPS_DMACR_OFFSET, dmacrreg); + setup_isr(xemac); + init_dma(xemac); + start_emacps(xemacpsif); + + SYS_ARCH_UNPROTECT(lev); +} + +void HandleTxErrors(struct xemac_s *xemac) +{ + xemacpsif_s *xemacpsif; + u32 netctrlreg; + + SYS_ARCH_DECL_PROTECT(lev); + SYS_ARCH_PROTECT(lev); + xemacpsif = (xemacpsif_s *)(xemac->state); + netctrlreg = XEmacPs_ReadReg(xemacpsif->emacps.Config.BaseAddress, + XEMACPS_NWCTRL_OFFSET); + netctrlreg = netctrlreg & (~XEMACPS_NWCTRL_TXEN_MASK); + XEmacPs_WriteReg(xemacpsif->emacps.Config.BaseAddress, + XEMACPS_NWCTRL_OFFSET, netctrlreg); + free_onlytx_pbufs(xemacpsif); + + clean_dma_txdescs(xemac); + netctrlreg = XEmacPs_ReadReg(xemacpsif->emacps.Config.BaseAddress, + XEMACPS_NWCTRL_OFFSET); + netctrlreg = netctrlreg | (XEMACPS_NWCTRL_TXEN_MASK); + XEmacPs_WriteReg(xemacpsif->emacps.Config.BaseAddress, + XEMACPS_NWCTRL_OFFSET, netctrlreg); + SYS_ARCH_UNPROTECT(lev); +} + +#if LWIP_IPV6 && LWIP_IPV6_MLD +static u8_t xemacpsif_ip6_addr_ismulticast(ip6_addr_t* ip_addr) +{ + if(ip6_addr_ismulticast_linklocal(ip_addr)|| + ip6_addr_ismulticast_iflocal(ip_addr) || + ip6_addr_ismulticast_adminlocal(ip_addr)|| + ip6_addr_ismulticast_sitelocal(ip_addr) || + ip6_addr_ismulticast_orglocal(ip_addr) || + ip6_addr_ismulticast_global(ip_addr)) { + /*Return TRUE if IPv6 is Multicast type*/ + return TRUE; + } else { + return FALSE; + } +} + +static void xemacpsif_mld6_mac_hash_update (struct netif *netif, u8_t *ip_addr, + u8_t action) +{ + u8_t multicast_mac_addr[6]; + struct xemac_s *xemac = (struct xemac_s *) (netif->state); + xemacpsif_s *xemacpsif = (xemacpsif_s *) (xemac->state); + XEmacPs_BdRing *txring; + txring = &(XEmacPs_GetTxRing(&xemacpsif->emacps)); + + multicast_mac_addr[0] = LL_IP6_MULTICAST_ADDR_0; + multicast_mac_addr[1] = LL_IP6_MULTICAST_ADDR_1; + multicast_mac_addr[2] = ip_addr[12]; + multicast_mac_addr[3] = ip_addr[13]; + multicast_mac_addr[4] = ip_addr[14]; + multicast_mac_addr[5] = ip_addr[15]; + + /* Wait till all sent packets are acknowledged from HW */ + while(txring->HwCnt); + + SYS_ARCH_DECL_PROTECT(lev); + + SYS_ARCH_PROTECT(lev); + + /* Stop Ethernet */ + XEmacPs_Stop(&xemacpsif->emacps); + + if (action == NETIF_ADD_MAC_FILTER) { + /* Set Mulitcast mac address in hash table */ + XEmacPs_SetHash(&xemacpsif->emacps, multicast_mac_addr); + + } else if (action == NETIF_DEL_MAC_FILTER) { + /* Remove Mulitcast mac address in hash table */ + XEmacPs_DeleteHash(&xemacpsif->emacps, multicast_mac_addr); + } + + /* Reset DMA */ + reset_dma(xemac); + + /* Start Ethernet */ + XEmacPs_Start(&xemacpsif->emacps); + + SYS_ARCH_UNPROTECT(lev); +} + +static err_t xemacpsif_mld6_mac_filter_update (struct netif *netif, ip_addr_t *group, + u8_t action) +{ + u8_t temp_mask; + unsigned int i; + u8_t * ip_addr = (u8_t *) group; + + if(!(xemacpsif_ip6_addr_ismulticast((ip6_addr_t*) ip_addr))) { + LWIP_DEBUGF(NETIF_DEBUG, + ("%s: The requested MAC address is not a multicast address.\r\n", __func__)); LWIP_DEBUGF(NETIF_DEBUG, + ("Multicast address add operation failure !!\r\n")); + return ERR_ARG; + } + if (action == NETIF_ADD_MAC_FILTER) { + for (i = 0; i < XEMACPS_MAX_MAC_ADDR; i++) { + temp_mask = (0x01) << i; + if ((xemacps_mld6_mcast_entry_mask & temp_mask) == temp_mask) { + continue; + } + xemacps_mld6_mcast_entry_mask |= temp_mask; + + /* Update mac address in hash table */ + xemacpsif_mld6_mac_hash_update(netif, ip_addr, action); + + LWIP_DEBUGF(NETIF_DEBUG, + ("%s: Multicast MAC address successfully added.\r\n", __func__)); + + return ERR_OK; + } + LWIP_DEBUGF(NETIF_DEBUG, + ("%s: No multicast address registers left.\r\n", __func__)); + LWIP_DEBUGF(NETIF_DEBUG, + ("Multicast MAC address add operation failure !!\r\n")); + return ERR_MEM; + } else if (action == NETIF_DEL_MAC_FILTER) { + for (i = 0; i < XEMACPS_MAX_MAC_ADDR; i++) { + temp_mask = (0x01) << i; + if ((xemacps_mld6_mcast_entry_mask & temp_mask) != temp_mask) { + continue; + } + xemacps_mld6_mcast_entry_mask &= (~temp_mask); + + /* Update mac address in hash table */ + xemacpsif_mld6_mac_hash_update(netif, ip_addr, action); + + LWIP_DEBUGF(NETIF_DEBUG, + ("%s: Multicast MAC address successfully removed.\r\n", __func__)); + + return ERR_OK; + } + LWIP_DEBUGF(NETIF_DEBUG, + ("%s: No multicast address registers present with\r\n", __func__)); + LWIP_DEBUGF(NETIF_DEBUG, + ("the requested Multicast MAC address.\r\n")); + LWIP_DEBUGF(NETIF_DEBUG, + ("Multicast MAC address removal failure!!.\r\n")); + return ERR_MEM; + } + return ERR_ARG; +} +#endif + +#if LWIP_IGMP +static void xemacpsif_mac_hash_update (struct netif *netif, u8_t *ip_addr, + u8_t action) +{ + u8_t multicast_mac_addr[6]; + struct xemac_s *xemac = (struct xemac_s *) (netif->state); + xemacpsif_s *xemacpsif = (xemacpsif_s *) (xemac->state); + XEmacPs_BdRing *txring; + txring = &(XEmacPs_GetTxRing(&xemacpsif->emacps)); + + multicast_mac_addr[0] = 0x01; + multicast_mac_addr[1] = 0x00; + multicast_mac_addr[2] = 0x5E; + multicast_mac_addr[3] = ip_addr[1] & 0x7F; + multicast_mac_addr[4] = ip_addr[2]; + multicast_mac_addr[5] = ip_addr[3]; + + /* Wait till all sent packets are acknowledged from HW */ + while(txring->HwCnt); + + SYS_ARCH_DECL_PROTECT(lev); + + SYS_ARCH_PROTECT(lev); + + /* Stop Ethernet */ + XEmacPs_Stop(&xemacpsif->emacps); + + if (action == IGMP_ADD_MAC_FILTER) { + /* Set Mulitcast mac address in hash table */ + XEmacPs_SetHash(&xemacpsif->emacps, multicast_mac_addr); + + } else if (action == IGMP_DEL_MAC_FILTER) { + /* Remove Mulitcast mac address in hash table */ + XEmacPs_DeleteHash(&xemacpsif->emacps, multicast_mac_addr); + } + + /* Reset DMA */ + reset_dma(xemac); + + /* Start Ethernet */ + XEmacPs_Start(&xemacpsif->emacps); + + SYS_ARCH_UNPROTECT(lev); +} + +static err_t xemacpsif_mac_filter_update (struct netif *netif, ip_addr_t *group, + u8_t action) +{ + u8_t temp_mask; + unsigned int i; + u8_t * ip_addr = (u8_t *) group; + + if ((ip_addr[0] < 224) && (ip_addr[0] > 239)) { + LWIP_DEBUGF(NETIF_DEBUG, + ("%s: The requested MAC address is not a multicast address.\r\n", __func__)); + LWIP_DEBUGF(NETIF_DEBUG, + ("Multicast address add operation failure !!\r\n")); + + return ERR_ARG; + } + + if (action == IGMP_ADD_MAC_FILTER) { + + for (i = 0; i < XEMACPS_MAX_MAC_ADDR; i++) { + temp_mask = (0x01) << i; + if ((xemacps_mcast_entry_mask & temp_mask) == temp_mask) { + continue; + } + xemacps_mcast_entry_mask |= temp_mask; + + /* Update mac address in hash table */ + xemacpsif_mac_hash_update(netif, ip_addr, action); + + LWIP_DEBUGF(NETIF_DEBUG, + ("%s: Multicast MAC address successfully added.\r\n", __func__)); + + return ERR_OK; + } + if (i == XEMACPS_MAX_MAC_ADDR) { + LWIP_DEBUGF(NETIF_DEBUG, + ("%s: No multicast address registers left.\r\n", __func__)); + LWIP_DEBUGF(NETIF_DEBUG, + ("Multicast MAC address add operation failure !!\r\n")); + + return ERR_MEM; + } + } else if (action == IGMP_DEL_MAC_FILTER) { + for (i = 0; i < XEMACPS_MAX_MAC_ADDR; i++) { + temp_mask = (0x01) << i; + if ((xemacps_mcast_entry_mask & temp_mask) != temp_mask) { + continue; + } + xemacps_mcast_entry_mask &= (~temp_mask); + + /* Update mac address in hash table */ + xemacpsif_mac_hash_update(netif, ip_addr, action); + + LWIP_DEBUGF(NETIF_DEBUG, + ("%s: Multicast MAC address successfully removed.\r\n", __func__)); + + return ERR_OK; + } + if (i == XEMACPS_MAX_MAC_ADDR) { + LWIP_DEBUGF(NETIF_DEBUG, + ("%s: No multicast address registers present with\r\n", __func__)); + LWIP_DEBUGF(NETIF_DEBUG, + ("the requested Multicast MAC address.\r\n")); + LWIP_DEBUGF(NETIF_DEBUG, + ("Multicast MAC address removal failure!!.\r\n")); + + return ERR_MEM; + } + } + return ERR_OK; +} +#endif + +/* + * xemacpsif_init(): + * + * Should be called at the beginning of the program to set up the + * network interface. It calls the function low_level_init() to do the + * actual setup of the hardware. + * + */ + +err_t xemacpsif_init(struct netif *netif) +{ +#if LWIP_SNMP + /* ifType ethernetCsmacd(6) @see RFC1213 */ + netif->link_type = 6; + /* your link speed here */ + netif->link_speed = ; + netif->ts = 0; + netif->ifinoctets = 0; + netif->ifinucastpkts = 0; + netif->ifinnucastpkts = 0; + netif->ifindiscards = 0; + netif->ifoutoctets = 0; + netif->ifoutucastpkts = 0; + netif->ifoutnucastpkts = 0; + netif->ifoutdiscards = 0; +#endif + + netif->name[0] = IFNAME0; + netif->name[1] = IFNAME1; + netif->output = xemacpsif_output; + netif->linkoutput = low_level_output; +#if LWIP_IPV6 + netif->output_ip6 = ethip6_output; +#endif + + low_level_init(netif); + return ERR_OK; +} + +/* + * xemacpsif_resetrx_on_no_rxdata(): + * + * Should be called by the user at regular intervals, typically + * from a timer (100 msecond). This is to provide a SW workaround + * for the HW bug (SI #692601). Please refer to the function header + * for the function resetrx_on_no_rxdata in xemacpsif_dma.c to + * know more about the SI. + * + */ + +void xemacpsif_resetrx_on_no_rxdata(struct netif *netif) +{ + struct xemac_s *xemac = (struct xemac_s *)(netif->state); + xemacpsif_s *xemacpsif = (xemacpsif_s *)(xemac->state); + + resetrx_on_no_rxdata(xemacpsif); +} |