adjusting xil eth to work for us

bsp_z7/lwip/xilinx_eth/CMakeLists.txt

@@ -0,0 +1,27 @@
+set (LWIP_INCLUDE_DIRS_XIL
+    "${LWIP_DIR}/src/include"
+    "${LWIP_DIR}/src/include/compat/posix"
+    "include"
+)
+
+set(lwip_SRCS_XIL
+    ${lwipcore_SRCS}
+    ${lwipcore4_SRCS}
+    ${lwipcore6_SRCS}
+    ${lwipnetif_SRCS}
+    ${lwipapi_SRCS}
+    #${LWIP_DIR}/contrib/ports/freertos/sys_arch.c
+    #${LWIP_DIR}/src/netif/slipif.c
+    #${LWIP_DIR}/src/apps/tftp/tftp.c
+)
+
+
+add_library(lwip_xil EXCLUDE_FROM_ALL ${lwip_SRCS_XIL})
+
+target_include_directories(lwip_xil PUBLIC ${LWIP_INCLUDE_DIRS_XIL})
+
+target_sources(lwip_xil PRIVATE xethernet.c)
+
+add_subdirectory(netif)
+add_subdirectory(port)
+

bsp_z7/lwip/xilinx_eth/README.md

@@ -0,0 +1,3 @@
+This folder contains mostly code from https://github.com/Xilinx/embeddedsw/tree/xilinx_v2024.1/ThirdParty/sw_services/lwip220/src/lwip-2.2.0/contrib/ports/xilinx
+
+Some files were added or modified to work with our setup. See git history for details, first clean import ist at `fd2c5a544fa1139c5123c35c83ca6b886bae2e6f`.

bsp_z7/lwip/xilinx_eth/include/arch/cc.h

@@ -47,30 +47,37 @@
 #include <sys/time.h>
 #include "cpu.h"
 
-/* As per new design of lwip-2.0.2,
+#include "xil_printf.h"
- * LWIP_NO_STDINT_H should be defined as 1 in cc.h */
-#define LWIP_NO_STDINT_H 1
 
-typedef unsigned   char    u8_t;
-typedef signed     char    s8_t;
-typedef unsigned   short   u16_t;
-typedef signed     short   s16_t;
-typedef unsigned   int    u32_t;
-typedef signed     int    s32_t;
-typedef unsigned   long long    u64_t;
-typedef signed     long long    s64_t;
 
-#define S16_F "d"
+// errno is a macro. If we define LWIP_ERRNO_INCLUDE to errno.h the preprocessor will replace it,
-#define U16_F "d"
+// breaking the include. Instead we supply a helper include which in turn includes errno.h
-#define S32_F "d"
+#define LWIP_ERRNO_INCLUDE <onrre.h>
-#define U32_F "x"
 
-#define X16_F "x"
+// /* As per new design of lwip-2.0.2,
-#define X32_F "x"
+//  * LWIP_NO_STDINT_H should be defined as 1 in cc.h */
+// #define LWIP_NO_STDINT_H 1
+
+// typedef unsigned   char    u8_t;
+// typedef signed     char    s8_t;
+// typedef unsigned   short   u16_t;
+// typedef signed     short   s16_t;
+// typedef unsigned   int    u32_t;
+// typedef signed     int    s32_t;
+// typedef unsigned   long long    u64_t;
+// typedef signed     long long    s64_t;
+
+// #define S16_F "d"
+// #define U16_F "d"
+// #define S32_F "d"
+// #define U32_F "x"
+
+// #define X16_F "x"
+// #define X32_F "x"
 
 #define LWIP_RAND rand
 
-typedef unsigned long mem_ptr_t;
+// typedef unsigned long mem_ptr_t;
 
 #define PACK_STRUCT_FIELD(x) x
 #define PACK_STRUCT_STRUCT __attribute__((packed))

bsp_z7/lwip/xilinx_eth/include/lwipopts.h

@@ -0,0 +1,336 @@
+/*
+ * Copyright (c) 2001-2003 Swedish Institute of Computer Science.
+ * 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.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef LWIP_LWIPOPTS_H
+#define LWIP_LWIPOPTS_H
+
+#define LWIP_IPV4                  1
+#define LWIP_IPV6                  0
+
+#define NO_SYS                     0
+#define LWIP_SOCKET                1
+#define LWIP_NETCONN               1
+#define LWIP_NETIF_API             0
+
+#define LWIP_IGMP                  0
+#define LWIP_ICMP                  LWIP_IPV4
+
+#define LWIP_SNMP                  0
+//#define MIB2_STATS                 LWIP_SNMP
+#ifdef LWIP_HAVE_MBEDTLS
+#define LWIP_SNMP_V3               (LWIP_SNMP)
+#endif
+
+#define LWIP_DNS                   0
+#define LWIP_MDNS_RESPONDER        0
+
+#define LWIP_NUM_NETIF_CLIENT_DATA (LWIP_MDNS_RESPONDER)
+
+#define LWIP_HAVE_LOOPIF           0
+#define LWIP_NETIF_LOOPBACK        0
+#define LWIP_LOOPBACK_MAX_PBUFS    0
+
+#define TCP_LISTEN_BACKLOG         0
+
+#define LWIP_COMPAT_SOCKETS         2
+//TODO put this into the OS
+#define LWIP_POSIX_SOCKETS_IO_NAMES 0
+#define LWIP_SO_RCVTIMEO            0
+#define LWIP_SO_RCVBUF              0
+//TODO use this with LWIP_POSIX_SOCKETS_IO_NAMES
+// TODO why is 100 not working...
+#define LWIP_SOCKET_OFFSET          10
+
+#define LWIP_SOCKET_SELECT          1
+#define LWIP_SOCKET_POLL            1
+
+#define LWIP_TCPIP_CORE_LOCKING    0
+
+#define LWIP_NETIF_LINK_CALLBACK        1
+#define LWIP_NETIF_STATUS_CALLBACK      1
+#define LWIP_NETIF_EXT_STATUS_CALLBACK  1
+
+//#define LWIP_DEBUG
+
+#ifdef LWIP_DEBUG
+
+#define LWIP_DBG_MIN_LEVEL         LWIP_DBG_LEVEL_ALL
+#define PPP_DEBUG                  LWIP_DBG_OFF
+#define MEM_DEBUG                  LWIP_DBG_OFF
+#define MEMP_DEBUG                 LWIP_DBG_OFF
+#define PBUF_DEBUG                 LWIP_DBG_ON
+#define API_LIB_DEBUG              LWIP_DBG_ON
+#define API_MSG_DEBUG              LWIP_DBG_ON
+#define TCPIP_DEBUG                LWIP_DBG_ON
+#define NETIF_DEBUG                LWIP_DBG_ON
+#define SOCKETS_DEBUG              LWIP_DBG_ON
+#define DNS_DEBUG                  LWIP_DBG_ON
+#define AUTOIP_DEBUG               LWIP_DBG_ON
+#define DHCP_DEBUG                 LWIP_DBG_ON
+#define IP_DEBUG                   LWIP_DBG_ON
+#define IP_REASS_DEBUG             LWIP_DBG_ON
+#define ICMP_DEBUG                 LWIP_DBG_ON
+#define IGMP_DEBUG                 LWIP_DBG_ON
+#define UDP_DEBUG                  LWIP_DBG_ON
+#define TCP_DEBUG                  LWIP_DBG_OFF
+#define TCP_INPUT_DEBUG            LWIP_DBG_OFF
+#define TCP_OUTPUT_DEBUG           LWIP_DBG_OFF
+#define TCP_RTO_DEBUG              LWIP_DBG_OFF
+#define TCP_CWND_DEBUG             LWIP_DBG_OFF
+#define TCP_WND_DEBUG              LWIP_DBG_OFF
+#define TCP_FR_DEBUG               LWIP_DBG_OFF
+#define TCP_QLEN_DEBUG             LWIP_DBG_OFF
+#define TCP_RST_DEBUG              LWIP_DBG_OFF
+#define TIMERS_DEBUG               LWIP_DBG_OFF
+#define LWIP_DEBUG_TIMERNAMES      LWIP_DBG_OFF
+#endif
+
+#define LWIP_DBG_TYPES_ON         (LWIP_DBG_ON|LWIP_DBG_TRACE|LWIP_DBG_STATE|LWIP_DBG_FRESH|LWIP_DBG_HALT)
+
+
+/* ---------- Memory options ---------- */
+/* MEM_ALIGNMENT: should be set to the alignment of the CPU for which
+   lwIP is compiled. 4 byte alignment -> define MEM_ALIGNMENT to 4, 2
+   byte alignment -> define MEM_ALIGNMENT to 2. */
+/* MSVC port: intel processors don't need 4-byte alignment,
+   but are faster that way! */
+   //TODO documentation
+   //Zynq needs 32 for DMA to work (something about cache I guess...)
+#define MEM_ALIGNMENT           32U
+
+#define MEM_USE_POOLS 1
+#define MEMP_USE_CUSTOM_POOLS MEM_USE_POOLS
+
+/* MEM_SIZE: the size of the heap memory. If the application will send
+a lot of data that needs to be copied, this should be set high. */
+#define MEM_SIZE               102400
+
+/* MEMP_NUM_PBUF: the number of memp struct pbufs. If the application
+   sends a lot of data out of ROM (or other static memory), this
+   should be set high. */
+#define MEMP_NUM_PBUF           16
+/* MEMP_NUM_RAW_PCB: the number of UDP protocol control blocks. One
+   per active RAW "connection". */
+#define MEMP_NUM_RAW_PCB        3
+/* MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One
+   per active UDP "connection". */
+#define MEMP_NUM_UDP_PCB        8
+/* MEMP_NUM_TCP_PCB: the number of simulatenously active TCP
+   connections. */
+#define MEMP_NUM_TCP_PCB        5
+/* MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP
+   connections. */
+#define MEMP_NUM_TCP_PCB_LISTEN 8
+/* MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP
+   segments. */
+#define MEMP_NUM_TCP_SEG        16
+/* MEMP_NUM_SYS_TIMEOUT: the number of simulateously active
+   timeouts. */
+#define MEMP_NUM_SYS_TIMEOUT    17
+
+/* The following four are used only with the sequential API and can be
+   set to 0 if the application only will use the raw API. */
+/* MEMP_NUM_NETBUF: the number of struct netbufs. */
+#define MEMP_NUM_NETBUF         2
+/* MEMP_NUM_NETCONN: the number of struct netconns. */
+#define MEMP_NUM_NETCONN        12
+/* MEMP_NUM_TCPIP_MSG_*: the number of struct tcpip_msg, which is used
+   for sequential API communication and incoming packets. Used in
+   src/api/tcpip.c. */
+#define MEMP_NUM_TCPIP_MSG_API   16
+#define MEMP_NUM_TCPIP_MSG_INPKT 16
+
+#define TCPIP_THREAD_STACKSIZE          10240
+
+
+/* ---------- Pbuf options ---------- */
+/* PBUF_POOL_SIZE: the number of buffers in the pbuf pool. */
+#define PBUF_POOL_SIZE          120
+
+/* PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. */
+/* Needs to be large enough to fit eth MTU to be able to use DMA for xemacps rx*/
+#define PBUF_POOL_BUFSIZE       1600
+
+/** SYS_LIGHTWEIGHT_PROT
+ * define SYS_LIGHTWEIGHT_PROT in lwipopts.h if you want inter-task protection
+ * for certain critical regions during buffer allocation, deallocation and memory
+ * allocation and deallocation.
+ */
+#define SYS_LIGHTWEIGHT_PROT    (NO_SYS==0)
+
+
+/* ---------- TCP options ---------- */
+#define LWIP_TCP                0
+#define TCP_TTL                 255
+
+#define LWIP_ALTCP              (LWIP_TCP)
+#ifdef LWIP_HAVE_MBEDTLS
+#define LWIP_ALTCP_TLS          (LWIP_TCP)
+#define LWIP_ALTCP_TLS_MBEDTLS  (LWIP_TCP)
+#endif
+
+
+/* Controls if TCP should queue segments that arrive out of
+   order. Define to 0 if your device is low on memory. */
+#define TCP_QUEUE_OOSEQ         1
+
+/* TCP Maximum segment size. */
+#define TCP_MSS                 1024
+
+/* TCP sender buffer space (bytes). */
+#define TCP_SND_BUF             2048
+
+/* TCP sender buffer space (pbufs). This must be at least = 2 *
+   TCP_SND_BUF/TCP_MSS for things to work. */
+#define TCP_SND_QUEUELEN       (4 * TCP_SND_BUF/TCP_MSS)
+
+/* TCP writable space (bytes). This must be less than or equal
+   to TCP_SND_BUF. It is the amount of space which must be
+   available in the tcp snd_buf for select to return writable */
+#define TCP_SNDLOWAT           (TCP_SND_BUF/2)
+
+/* TCP receive window. */
+#define TCP_WND                 (20 * 1024)
+
+/* Maximum number of retransmissions of data segments. */
+#define TCP_MAXRTX              12
+
+/* Maximum number of retransmissions of SYN segments. */
+#define TCP_SYNMAXRTX           4
+
+
+#define TCPIP_MBOX_SIZE                 5
+
+/* ---------- ARP options ---------- */
+#define LWIP_ARP                1
+#define ARP_TABLE_SIZE          10
+#define ARP_QUEUEING            1
+#define ARP_QUEUE_LEN         10
+
+
+/* ---------- IP options ---------- */
+/* Define IP_FORWARD to 1 if you wish to have the ability to forward
+   IP packets across network interfaces. If you are going to run lwIP
+   on a device with only one network interface, define this to 0. */
+#define IP_FORWARD              1
+
+/* IP reassembly and segmentation.These are orthogonal even
+ * if they both deal with IP fragments */
+#define IP_REASSEMBLY           1
+#define IP_REASS_MAX_PBUFS      (10 * ((1500 + PBUF_POOL_BUFSIZE - 1) / PBUF_POOL_BUFSIZE))
+#define MEMP_NUM_REASSDATA      IP_REASS_MAX_PBUFS
+#define IP_FRAG                 1
+#define IPV6_FRAG_COPYHEADER    1
+
+/* ---------- ICMP options ---------- */
+#define ICMP_TTL                255
+
+
+/* ---------- DHCP options ---------- */
+/* Define LWIP_DHCP to 1 if you want DHCP configuration of
+   interfaces. */
+#define LWIP_DHCP               0
+
+/* 1 if you want to do an ARP check on the offered address
+   (recommended). */
+#define DHCP_DOES_ARP_CHECK    (LWIP_DHCP)
+
+
+/* ---------- AUTOIP options ------- */
+#define LWIP_AUTOIP            (LWIP_DHCP)
+#define LWIP_DHCP_AUTOIP_COOP  (LWIP_DHCP && LWIP_AUTOIP)
+
+
+/* ---------- UDP options ---------- */
+#define LWIP_UDP                1
+#define LWIP_UDPLITE            0
+#define UDP_TTL                 255
+#define DEFAULT_UDP_RECVMBOX_SIZE       4
+
+/* ---------- RAW options ---------- */
+#define LWIP_RAW                0
+#define DEFAULT_TCP_RECVMBOX_SIZE       2
+
+/* ---------- Statistics options ---------- */
+
+#define LWIP_STATS              0
+#define LWIP_STATS_DISPLAY      0
+
+#if LWIP_STATS
+#define LINK_STATS              1
+#define IP_STATS                1
+#define ICMP_STATS              1
+#define IGMP_STATS              1
+#define IPFRAG_STATS            1
+#define UDP_STATS               1
+#define TCP_STATS               1
+#define MEM_STATS               1
+#define MEMP_STATS              1
+#define PBUF_STATS              1
+#define SYS_STATS               1
+#endif /* LWIP_STATS */
+
+/* ---------- NETBIOS options ---------- */
+#define LWIP_NETBIOS_RESPOND_NAME_QUERY 0
+
+/* ---------- PPP options ---------- */
+
+#define PPP_SUPPORT             0      /* Set > 0 for PPP */
+
+#if PPP_SUPPORT
+
+#define NUM_PPP                 1      /* Max PPP sessions. */
+
+
+/* Select modules to enable.  Ideally these would be set in the makefile but
+ * we're limited by the command line length so you need to modify the settings
+ * in this file.
+ */
+#define PPPOE_SUPPORT           1
+#define PPPOS_SUPPORT           1
+
+#define PAP_SUPPORT             1      /* Set > 0 for PAP. */
+#define CHAP_SUPPORT            1      /* Set > 0 for CHAP. */
+#define MSCHAP_SUPPORT          0      /* Set > 0 for MSCHAP */
+#define CBCP_SUPPORT            0      /* Set > 0 for CBCP (NOT FUNCTIONAL!) */
+#define CCP_SUPPORT             0      /* Set > 0 for CCP */
+#define VJ_SUPPORT              0      /* Set > 0 for VJ header compression. */
+#define MD5_SUPPORT             1      /* Set > 0 for MD5 (see also CHAP) */
+
+#endif /* PPP_SUPPORT */
+
+
+// Disable slip task
+#define SLIP_USE_RX_THREAD 0
+
+
+
+#endif /* LWIP_LWIPOPTS_H */

bsp_z7/lwip/xilinx_eth/include/lwippools.h

@@ -0,0 +1,5 @@
+LWIP_MALLOC_MEMPOOL_START
+LWIP_MALLOC_MEMPOOL(50, 256)
+LWIP_MALLOC_MEMPOOL(50, 512)
+LWIP_MALLOC_MEMPOOL(50, 1550)
+LWIP_MALLOC_MEMPOOL_END

bsp_z7/lwip/xilinx_eth/include/netif/xadapter.h

@@ -40,6 +40,9 @@ extern "C" {
 
 #if !NO_SYS
 #include "lwip/sys.h"
+//TODO this is not portable:
+#include "FreeRTOS.h"
+#include "timers.h"
 #endif
 
 #include "lwip/netif.h"

bsp_z7/lwip/xilinx_eth/include/netif/xpqueue.h

@@ -36,7 +36,7 @@
 extern "C" {
 #endif
 
-#include "debug.h"
+#include "lwip/debug.h"
 
 #define PQ_QUEUE_SIZE 4096
 

bsp_z7/lwip/xilinx_eth/include/onrre.h

@@ -0,0 +1,2 @@
+#pragma once
+#include <errno.h>

bsp_z7/lwip/xilinx_eth/include/xethernet.h

@@ -0,0 +1,3 @@
+#pragma once
+
+void xethernet_init();

bsp_z7/lwip/xilinx_eth/include/xlwipconfig.h

@@ -33,8 +33,31 @@
 #ifndef __XLWIPCONFIG_H_
 #define __XLWIPCONFIG_H_
 
-/* this is a generated file: do not modify */
+#define XLWIP_CONFIG_INCLUDE_GEM
+#define XLWIP_CONFIG_N_TX_DESC 64
+#define XLWIP_CONFIG_N_RX_DESC 64
 
-#define XLWIP_CONFIG_INCLUDE_EMACLITE 1
+//#define CONFIG_LINKSPEED100
+#define CONFIG_LINKSPEED_AUTODETECT
+
+//TODO defines
+/*
+#cmakedefine XLWIP_CONFIG_INCLUDE_AXIETH_ON_ZYNQ @XLWIP_CONFIG_INCLUDE_AXIETH_ON_ZYNQ@
+#cmakedefine XLWIP_CONFIG_INCLUDE_EMACLITE_ON_ZYNQ @XLWIP_CONFIG_INCLUDE_EMACLITE_ON_ZYNQ@
+#cmakedefine XLWIP_CONFIG_INCLUDE_EMACLITE @XLWIP_CONFIG_INCLUDE_EMACLITE@
+#cmakedefine XLWIP_CONFIG_INCLUDE_AXI_ETHERNET @XLWIP_CONFIG_INCLUDE_AXI_ETHERNET@
+#cmakedefine XLWIP_CONFIG_INCLUDE_AXI_ETHERNET_DMA @XLWIP_CONFIG_INCLUDE_AXI_ETHERNET_DMA@
+#cmakedefine XLWIP_CONFIG_INCLUDE_AXI_ETHERNET_FIFO @XLWIP_CONFIG_INCLUDE_AXI_ETHERNET_FIFO@
+#cmakedefine XLWIP_CONFIG_AXI_ETHERNET_ENABLE_1588 @XLWIP_CONFIG_AXI_ETHERNET_ENABLE_1588@
+#cmakedefine XLWIP_CONFIG_INCLUDE_AXI_ETHERNET_MCDMA @XLWIP_CONFIG_INCLUDE_AXI_ETHERNET_MCDMA@
+#cmakedefine XLWIP_CONFIG_INCLUDE_GEM @XLWIP_CONFIG_INCLUDE_GEM@
+#cmakedefine XLWIP_CONFIG_N_TX_DESC @XLWIP_CONFIG_N_TX_DESC@
+#cmakedefine XLWIP_CONFIG_N_RX_DESC @XLWIP_CONFIG_N_RX_DESC@
+#cmakedefine XLWIP_CONFIG_N_TX_COALESCE @XLWIP_CONFIG_N_TX_COALESCE@
+#cmakedefine XLWIP_CONFIG_N_RX_COALESCE @XLWIP_CONFIG_N_RX_COALESCE@
+#cmakedefine XLWIP_CONFIG_EMAC_NUMBER @XLWIP_CONFIG_EMAC_NUMBER@
+#cmakedefine XLWIP_CONFIG_PCS_PMA_1000BASEX_CORE_PRESENT @XLWIP_CONFIG_PCS_PMA_1000BASEX_CORE_PRESENT@
+#cmakedefine XLWIP_CONFIG_PCS_PMA_SGMII_CORE_PRESENT @XLWIP_CONFIG_PCS_PMA_SGMII_CORE_PRESENT@
+*/
 
 #endif

bsp_z7/lwip/xilinx_eth/netif/CMakeLists.txt

@@ -0,0 +1,12 @@
+target_sources(lwip_xil PRIVATE
+    xadapter.c
+    xpqueue.c
+    xemacpsif_dma.c
+    xemacpsif_physpeed.c
+    xemacpsif_hw.c
+    xemacpsif.c
+    topology.c
+)
+
+target_include_directories(lwip_xil PRIVATE ${CMAKE_CURRENT_SOURCE_DIR})
+

bsp_z7/lwip/xilinx_eth/netif/topology.c

@@ -0,0 +1,37 @@
+#include "netif/xtopology.h"
+
+// struct xtopology_t {
+// 	UINTPTR emac_baseaddr;
+// 	enum xemac_types emac_type;
+// #ifndef SDT
+// 	UINTPTR intc_baseaddr;
+// 	unsigned intc_emac_intr;	/* valid only for xemac_type_xps_emaclite */
+// 	UINTPTR scugic_baseaddr; /* valid only for Zynq */
+// 	unsigned scugic_emac_intr; /* valid only for GEM */
+// #endif
+// };
+
+
+int xtopology_n_emacs = 2;
+struct xtopology_t xtopology[] = {
+    {
+        0xE000B000,
+        xemac_type_emacps,
+#ifndef SDT
+        0,
+        0,
+        0xF8F00100,
+        0x36
+#endif
+    },
+    {
+        0xE000C000,
+        xemac_type_emacps,
+#ifndef SDT
+        0,
+        0,
+        0xF8F00100,
+        0x4D
+#endif
+    }
+};

bsp_z7/lwip/xilinx_eth/port/CMakeLists.txt

@@ -0,0 +1,5 @@
+target_sources(lwip_xil PRIVATE
+    sys_arch.c
+    sys_arch_raw.c
+)
+

bsp_z7/lwip/xilinx_eth/xethernet.c

@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2017 - 2022 Xilinx, Inc.
+ * Copyright (C) 2022 - 2023 Advanced Micro Devices, 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.
+ *
+ */
+
+#include "lwip/inet.h"
+#include "lwip/tcpip.h"
+#include "netif/xadapter.h"
+
+#define PLATFORM_EMAC_BASEADDR 0xE000B000
+
+#define THREAD_STACKSIZE 1024
+
+#define DEFAULT_IP_ADDRESS "192.168.1.10"
+#define DEFAULT_IP_MASK "255.255.255.0"
+#define DEFAULT_GW_ADDRESS "192.168.1.1"
+
+struct netif server_netif;
+
+// u32_t sys_now(void) { return xTaskGetTickCount() * portTICK_PERIOD_MS; }
+
+static void print_ip(char *msg, ip_addr_t *ip) {
+  xil_printf(msg);
+  xil_printf("%d.%d.%d.%d\n\r", ip4_addr1(ip), ip4_addr2(ip), ip4_addr3(ip),
+             ip4_addr4(ip));
+}
+
+static void print_ip_settings(ip_addr_t *ip, ip_addr_t *mask, ip_addr_t *gw) {
+  print_ip("Board IP:       ", ip);
+  print_ip("Netmask :       ", mask);
+  print_ip("Gateway :       ", gw);
+}
+
+// static void assign_default_ip(ip_addr_t *ip, ip_addr_t *mask, ip_addr_t *gw)
+// {
+//   int err;
+
+//   xil_printf("Configuring default IP %s \r\n", DEFAULT_IP_ADDRESS);
+
+//   err = inet_aton(DEFAULT_IP_ADDRESS, ip);
+//   if (!err)
+//     xil_printf("Invalid default IP address: %d\r\n", err);
+
+//   err = inet_aton(DEFAULT_IP_MASK, mask);
+//   if (!err)
+//     xil_printf("Invalid default IP MASK: %d\r\n", err);
+
+//   err = inet_aton(DEFAULT_GW_ADDRESS, gw);
+//   if (!err)
+//     xil_printf("Invalid default gateway address: %d\r\n", err);
+// }
+
+void init_thread(void *_) {
+
+  /* the mac address of the board. this should be unique per board */
+  u8_t mac_ethernet_address[] = {0x00, 0x0a, 0x35, 0x00, 0x01, 0x02};
+
+  /* Add network interface to the netif_list, and set it as default */
+  ip_addr_t ip, mask, gw;
+  int err = inet_aton(DEFAULT_IP_ADDRESS, &ip);
+  if (!err)
+    xil_printf("Invalid default IP address: %d\r\n", err);
+
+  err = inet_aton(DEFAULT_IP_MASK, &mask);
+  if (!err)
+    xil_printf("Invalid default IP MASK: %d\r\n", err);
+
+  err = inet_aton(DEFAULT_GW_ADDRESS, &gw);
+  if (!err)
+    xil_printf("Invalid default gateway address: %d\r\n", err);
+  if (!xemac_add(&server_netif, &ip, &mask, &gw, mac_ethernet_address,
+                 PLATFORM_EMAC_BASEADDR)) {
+    xil_printf("Error adding N/W interface\r\n");
+    return;
+  }
+
+  netif_set_default(&server_netif);
+
+  /* specify that the network if is up */
+  netif_set_up(&server_netif);
+
+  /* start packet receive thread - required for lwIP operation */
+  sys_thread_new("xemacif_input_thread", (void (*)(void *))xemacif_input_thread,
+                 &server_netif, THREAD_STACKSIZE, DEFAULT_THREAD_PRIO);
+
+  print_ip_settings(&(server_netif.ip_addr), &(server_netif.netmask),
+                    &(server_netif.gw));
+  xil_printf("\r\n");
+
+  // Some allocations do not allow task deletion
+  // vTaskDelete(NULL);
+  vTaskSuspend(NULL);
+}
+
+void xethernet_init() {
+  // pushed into thread so it only starts after threads are started
+  sys_thread_new("initxeth_thread", init_thread, 0, THREAD_STACKSIZE,
+                 DEFAULT_THREAD_PRIO);
+}