software/bios: rename libnet to libliteeth and move all ethernet files to it.

litex/soc/integration/builder.py

@@ -25,7 +25,7 @@ __all__ = ["soc_software_packages", "soc_directory",
 soc_software_packages = [
     "libcompiler_rt",
     "libbase",
-    "libnet",
+    "libliteeth",
     "bios"
 ]
 

litex/soc/software/bios/Makefile

@@ -59,15 +59,15 @@ endif
 bios.elf: $(BIOS_DIRECTORY)/linker.ld $(OBJECTS)
 
 
-%.elf: ../libbase/crt0-ctr.o ../libnet/libnet.a ../libbase/libbase-nofloat.a ../libcompiler_rt/libcompiler_rt.a
+%.elf: ../libbase/crt0-ctr.o ../libliteeth/libliteeth.a ../libbase/libbase-nofloat.a ../libcompiler_rt/libcompiler_rt.a
 	$(LD) $(LDFLAGS) -T $(BIOS_DIRECTORY)/linker.ld -N -o $@ \
 		../libbase/crt0-ctr.o \
 		$(OBJECTS) \
-		-L../libnet \
+		-L../libliteeth \
 		-L../libbase \
 		-L../libcompiler_rt \
 		$(BP_LIBS) \
-		-lnet -lbase-nofloat -lcompiler_rt \
+		-lliteeth -lbase-nofloat -lcompiler_rt \
 		$(BP_FLAGS)
 
 ifneq ($(OS),Windows_NT)

litex/soc/software/bios/boot.c

@@ -21,8 +21,8 @@
 #include <generated/soc.h>
 
 #ifdef CSR_ETHMAC_BASE
-#include <net/microudp.h>
-#include <net/tftp.h>
+#include <udp.h>
+#include <tftp.h>
 #endif
 
 #ifdef CSR_SPIFLASH_BASE
@@ -340,7 +340,7 @@ void netboot(void)
 
 	ip = IPTOINT(REMOTEIP1, REMOTEIP2, REMOTEIP3, REMOTEIP4);
 
-	microudp_start(macadr, IPTOINT(LOCALIP1, LOCALIP2, LOCALIP3, LOCALIP4));
+	udp_start(macadr, IPTOINT(LOCALIP1, LOCALIP2, LOCALIP3, LOCALIP4));
 
 	tftp_port = TFTP_SERVER_PORT;
 	printf("Fetching from: UDP/%d\n", tftp_port);

litex/soc/software/bios/main.c

@@ -30,7 +30,7 @@
 #include <generated/git.h>
 
 #ifdef CSR_ETHMAC_BASE
-#include <net/microudp.h>
+#include "udp.h"
 #endif
 
 #ifdef CSR_SPIFLASH_BASE

litex/soc/software/common.mak

@@ -45,7 +45,12 @@ DEPFLAGS += -MD -MP
 
 # Toolchain options
 #
-INCLUDES = -I$(SOC_DIRECTORY)/software/include/base -I$(SOC_DIRECTORY)/software/include -I$(SOC_DIRECTORY)/common -I$(BUILDINC_DIRECTORY) -I$(CPU_DIRECTORY)
+INCLUDES = -I$(SOC_DIRECTORY)/software/include/base \
+           -I$(SOC_DIRECTORY)/software/include \
+           -I$(SOC_DIRECTORY)/common \
+           -I$(BUILDINC_DIRECTORY) \
+           -I$(CPU_DIRECTORY) \
+           -I$(SOC_DIRECTORY)/software/libliteeth
 COMMONFLAGS = $(DEPFLAGS) -Os $(CPUFLAGS) -g3 -fomit-frame-pointer -Wall -fno-builtin -nostdinc $(INCLUDES)
 CFLAGS = $(COMMONFLAGS) -fexceptions -Wstrict-prototypes -Wold-style-definition -Wmissing-prototypes
 CXXFLAGS = $(COMMONFLAGS) -std=c++11 -I$(SOC_DIRECTORY)/software/include/basec++ -fexceptions -fno-rtti -ffreestanding

litex/soc/software/include/net/microudp.h

@@ -1,20 +0,0 @@
-#ifndef __MICROUDP_H
-#define __MICROUDP_H
-
-#define IPTOINT(a, b, c, d) ((a << 24)|(b << 16)|(c << 8)|d)
-
-#define MICROUDP_BUFSIZE (5*1532)
-
-typedef void (*udp_callback)(unsigned int src_ip, unsigned short src_port, unsigned short dst_port, void *data, unsigned int length);
-
-void microudp_start(const unsigned char *macaddr, unsigned int ip);
-int microudp_arp_resolve(unsigned int ip);
-void *microudp_get_tx_buffer(void);
-int microudp_send(unsigned short src_port, unsigned short dst_port, unsigned int length);
-void microudp_set_callback(udp_callback callback);
-void microudp_service(void);
-
-void eth_init(void);
-void eth_mode(void);
-
-#endif /* __MICROUDP_H */

litex/soc/software/libliteeth/Makefile

@@ -1,17 +1,17 @@
 include ../include/generated/variables.mak
 include $(SOC_DIRECTORY)/software/common.mak
 
-OBJECTS=microudp.o tftp.o
+OBJECTS=udp.o tftp.o
 
-all: libnet.a
+all: libliteeth.a
 
-libnet.a: $(OBJECTS)
-	$(AR) crs libnet.a $(OBJECTS)
+libliteeth.a: $(OBJECTS)
+	$(AR) crs libliteeth.a $(OBJECTS)
 
 # pull in dependency info for *existing* .o files
 -include $(OBJECTS:.o=.d)
 
-%.o: $(LIBNET_DIRECTORY)/%.c
+%.o: $(LIBLITEETH_DIRECTORY)/%.c
 	$(compile)
 
 %.o: %.S
@@ -20,4 +20,4 @@ libnet.a: $(OBJECTS)
 .PHONY: all clean
 
 clean:
-	$(RM) $(OBJECTS) libnet.a .*~ *~
+	$(RM) $(OBJECTS) libliteeth.a .*~ *~

litex/soc/software/libliteeth/tftp.c

@@ -10,8 +10,8 @@
 #include <stdint.h>
 #include <string.h>
 
-#include <net/microudp.h>
-#include <net/tftp.h>
+#include "udp.h"
+#include "tftp.h"
 
 /* Local TFTP client port (arbitrary) */
 #define PORT_IN		7642
@@ -99,9 +99,9 @@ static void rx_callback(uint32_t src_ip, uint16_t src_port,
 		if(length < BLOCK_SIZE)
 			transfer_finished = 1;
 
-		packet_data = microudp_get_tx_buffer();
+		packet_data = udp_get_tx_buffer();
 		length = format_ack(packet_data, block);
-		microudp_send(PORT_IN, src_port, length);
+		udp_send(PORT_IN, src_port, length);
 	}
 	if(opcode == TFTP_ERROR) { /* Error */
 		total_length = -1;
@@ -118,10 +118,10 @@ int tftp_get(uint32_t ip, uint16_t server_port, const char *filename,
 	int length_before;
 	int spin = 0;
 
-	if(!microudp_arp_resolve(ip))
+	if(!udp_arp_resolve(ip))
 		return -1;
 
-	microudp_set_callback(rx_callback);
+	udp_set_callback(rx_callback);
 
 	dst_buffer = buffer;
 
@@ -129,17 +129,17 @@ int tftp_get(uint32_t ip, uint16_t server_port, const char *filename,
 	transfer_finished = 0;
 	tries = 5;
 	while(1) {
-		packet_data = microudp_get_tx_buffer();
+		packet_data = udp_get_tx_buffer();
 		len = format_request(packet_data, TFTP_RRQ, filename);
-		microudp_send(PORT_IN, server_port, len);
+		udp_send(PORT_IN, server_port, len);
 		for(i=0;i<2000000;i++) {
-			microudp_service();
+			udp_service();
 			if((total_length > 0) || transfer_finished) break;
 		}
 		if((total_length > 0) || transfer_finished) break;
 		tries--;
 		if(tries == 0) {
-			microudp_set_callback(NULL);
+			udp_set_callback(NULL);
 			return -1;
 		}
 	}
@@ -156,13 +156,13 @@ int tftp_get(uint32_t ip, uint16_t server_port, const char *filename,
 			}
 		}
 		if(i-- == 0) {
-			microudp_set_callback(NULL);
+			udp_set_callback(NULL);
 			return -1;
 		}
-		microudp_service();
+		udp_service();
 	}
 
-	microudp_set_callback(NULL);
+	udp_set_callback(NULL);
 
 	return total_length;
 }
@@ -175,23 +175,23 @@ int tftp_put(uint32_t ip, uint16_t server_port, const char *filename,
 	int i;
 	int block = 0, sent = 0;
 
-	if(!microudp_arp_resolve(ip))
+	if(!udp_arp_resolve(ip))
 		return -1;
 
-	microudp_set_callback(rx_callback);
+	udp_set_callback(rx_callback);
 
-	packet_data = microudp_get_tx_buffer();
+	packet_data = udp_get_tx_buffer();
 
 	total_length = 0;
 	transfer_finished = 0;
 	tries = 5;
 	while(1) {
-		packet_data = microudp_get_tx_buffer();
+		packet_data = udp_get_tx_buffer();
 		len = format_request(packet_data, TFTP_WRQ, filename);
-		microudp_send(PORT_IN, server_port, len);
+		udp_send(PORT_IN, server_port, len);
 		for(i=0;i<2000000;i++) {
 			last_ack = -1;
-			microudp_service();
+			udp_service();
 			if(last_ack == block)
 				goto send_data;
 			if(transfer_finished)
@@ -208,11 +208,11 @@ send_data:
 		send = sent+BLOCK_SIZE > size ? size-sent : BLOCK_SIZE;
 		tries = 5;
 		while(1) {
-			packet_data = microudp_get_tx_buffer();
+			packet_data = udp_get_tx_buffer();
 			len = format_data(packet_data, block, buffer, send);
-			microudp_send(PORT_IN, data_port, len);
+			udp_send(PORT_IN, data_port, len);
 			for(i=0;i<12000000;i++) {
-				microudp_service();
+				udp_service();
 				if(transfer_finished)
 					goto fail;
 				if(last_ack == block)
@@ -226,11 +226,11 @@ next:
 		buffer += send;
 	} while (send == BLOCK_SIZE);
 
-	microudp_set_callback(NULL);
+	udp_set_callback(NULL);
 
 	return sent;
 
 fail:
-	microudp_set_callback(NULL);
+	udp_set_callback(NULL);
 	return -1;
 }

litex/soc/software/libliteeth/udp.c

@@ -16,10 +16,10 @@
 #include <crc.h>
 #include <hw/flags.h>
 
-#include <net/microudp.h>
+#include "udp.h"
 
-//#define DEBUG_MICROUDP_TX
-//#define DEBUG_MICROUDP_RX
+//#define DEBUG_UDP_TX
+//#define DEBUG_UDP_RX
 
 #define ETHERTYPE_ARP 0x0806
 #define ETHERTYPE_IP  0x0800
@@ -145,7 +145,7 @@ static void send_packet(void)
 	txlen += 4;
 #endif
 
-#ifdef DEBUG_MICROUDP_TX
+#ifdef DEBUG_LITEETH_UDP_TX
 	int j;
 	printf(">>>> txlen : %d\n", txlen);
 	for(j=0;j<txlen;j++)
@@ -217,7 +217,7 @@ static void process_arp(void)
 
 static const unsigned char broadcast[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 
-int microudp_arp_resolve(unsigned int ip)
+int udp_arp_resolve(unsigned int ip)
 {
 	struct arp_frame *arp;
 	int i;
@@ -256,7 +256,7 @@ int microudp_arp_resolve(unsigned int ip)
 
 		/* Do we get a reply ? */
 		for(timeout=0;timeout<100000;timeout++) {
-			microudp_service();
+			udp_service();
 			for(i=0;i<6;i++)
 				if(cached_mac[i]) return 1;
 		}
@@ -288,7 +288,7 @@ static unsigned short ip_checksum(unsigned int r, void *buffer, unsigned int len
 	return r;
 }
 
-void *microudp_get_tx_buffer(void)
+void *udp_get_tx_buffer(void)
 {
 	return txbuffer->frame.contents.udp.payload;
 }
@@ -301,7 +301,7 @@ struct pseudo_header {
 	unsigned short length;
 } __attribute__((packed));
 
-int microudp_send(unsigned short src_port, unsigned short dst_port, unsigned int length)
+int udp_send(unsigned short src_port, unsigned short dst_port, unsigned int length)
 {
 	struct pseudo_header h;
 	unsigned int r;
@@ -373,7 +373,7 @@ static void process_ip(void)
 			    udp_ip->payload, ntohs(udp_ip->udp.length)-sizeof(struct udp_header));
 }
 
-void microudp_set_callback(udp_callback callback)
+void udp_set_callback(udp_callback callback)
 {
 	rx_callback = callback;
 }
@@ -382,7 +382,7 @@ static void process_frame(void)
 {
 	flush_cpu_dcache();
 
-#ifdef DEBUG_MICROUDP_RX
+#ifdef DEBUG_LITEETH_UDP_RX
 	int j;
 	printf("<<< rxlen : %d\n", rxlen);
 	for(j=0;j<rxlen;j++)
@@ -414,7 +414,7 @@ static void process_frame(void)
 	else if(ntohs(rxbuffer->frame.eth_header.ethertype) == ETHERTYPE_IP) process_ip();
 }
 
-void microudp_start(const unsigned char *macaddr, unsigned int ip)
+void udp_start(const unsigned char *macaddr, unsigned int ip)
 {
 	int i;
 	ethmac_sram_reader_ev_pending_write(ETHMAC_EV_SRAM_READER);
@@ -437,7 +437,7 @@ void microudp_start(const unsigned char *macaddr, unsigned int ip)
 	rx_callback = (udp_callback)0;
 }
 
-void microudp_service(void)
+void udp_service(void)
 {
 	if(ethmac_sram_writer_ev_pending_read() & ETHMAC_EV_SRAM_WRITER) {
 		rxslot = ethmac_sram_writer_slot_read();

litex/soc/software/libliteeth/udp.h

@@ -0,0 +1,20 @@
+#ifndef __UDP_H
+#define __UDP_H
+
+#define IPTOINT(a, b, c, d) ((a << 24)|(b << 16)|(c << 8)|d)
+
+#define UDP_BUFSIZE (5*1532)
+
+typedef void (*udp_callback)(unsigned int src_ip, unsigned short src_port, unsigned short dst_port, void *data, unsigned int length);
+
+void udp_start(const unsigned char *macaddr, unsigned int ip);
+int udp_arp_resolve(unsigned int ip);
+void *udp_get_tx_buffer(void);
+int udp_send(unsigned short src_port, unsigned short dst_port, unsigned int length);
+void udp_set_callback(udp_callback callback);
+void udp_service(void);
+
+void eth_init(void);
+void eth_mode(void);
+
+#endif /* __UDP_H */