unsigned char reg, unsigned short value);
static int tsec_miiphy_read(char *devname, unsigned char addr,
unsigned char reg, unsigned short *value);
+#ifdef CONFIG_MCAST_TFTP
+static int tsec_mcast_addr (struct eth_device *dev, u8 mcast_mac, u8 set);
+#endif
/* Initialize device structure. Returns success if PHY
* initialization succeeded (i.e. if it recognizes the PHY)
dev->halt = tsec_halt;
dev->send = tsec_send;
dev->recv = tsec_recv;
+#ifdef CONFIG_MCAST_TFTP
+ dev->mcast = tsec_mcast_addr;
+#endif
/* Tell u-boot to get the addr from the env */
for (i = 0; i < 6; i++)
#endif
+#ifdef CONFIG_MCAST_TFTP
+
+/* CREDITS: linux gianfar driver, slightly adjusted... thanx. */
+
+/* Set the appropriate hash bit for the given addr */
+
+/* The algorithm works like so:
+ * 1) Take the Destination Address (ie the multicast address), and
+ * do a CRC on it (little endian), and reverse the bits of the
+ * result.
+ * 2) Use the 8 most significant bits as a hash into a 256-entry
+ * table. The table is controlled through 8 32-bit registers:
+ * gaddr0-7. gaddr0's MSB is entry 0, and gaddr7's LSB is
+ * gaddr7. This means that the 3 most significant bits in the
+ * hash index which gaddr register to use, and the 5 other bits
+ * indicate which bit (assuming an IBM numbering scheme, which
+ * for PowerPC (tm) is usually the case) in the tregister holds
+ * the entry. */
+static int
+tsec_mcast_addr (struct eth_device *dev, u8 mcast_mac, u8 set)
+{
+ struct tsec_private *priv = privlist[1];
+ volatile tsec_t *regs = priv->regs;
+ volatile u32 *reg_array, value;
+ u8 result, whichbit, whichreg;
+
+ result = (u8)((ether_crc(MAC_ADDR_LEN,mcast_mac) >> 24) & 0xff);
+ whichbit = result & 0x1f; /* the 5 LSB = which bit to set */
+ whichreg = result >> 5; /* the 3 MSB = which reg to set it in */
+ value = (1 << (31-whichbit));
+
+ reg_array = &(regs->hash.gaddr0);
+
+ if (set) {
+ reg_array[whichreg] |= value;
+ } else {
+ reg_array[whichreg] &= ~value;
+ }
+ return 0;
+}
+#endif /* Multicast TFTP ? */
+
#endif /* CONFIG_TSEC_ENET */
extern flash_info_t flash_info[];
#endif
+/* 512 is poor choice for ethernet, MTU is typically 1500.
+ * Minus eth.hdrs thats 1468. Can get 2x better throughput with
+ * almost-MTU block sizes. At least try... fall back to 512 if need be.
+ */
+#define TFTP_MTU_BLOCKSIZE 1468
+static unsigned short TftpBlkSize=TFTP_BLOCK_SIZE;
+static unsigned short TftpBlkSizeOption=TFTP_MTU_BLOCKSIZE;
+
+#ifdef CONFIG_MCAST_TFTP
+#include <malloc.h>
+#define MTFTP_BITMAPSIZE 0x1000
+static unsigned *Bitmap;
+static int PrevBitmapHole,Mapsize=MTFTP_BITMAPSIZE;
+static uchar ProhibitMcast=0, MasterClient=0;
+static uchar Multicast=0;
+extern IPaddr_t Mcast_addr;
+static int Mcast_port;
+static ulong TftpEndingBlock; /* can get 'last' block before done..*/
+
+static void parse_multicast_oack(char *pkt,int len);
+
+static void
+mcast_cleanup(void)
+{
+ if (Mcast_addr) eth_mcast_join(Mcast_addr, 0);
+ if (Bitmap) free(Bitmap);
+ Bitmap=NULL;
+ Mcast_addr = Multicast = Mcast_port = 0;
+ TftpEndingBlock = -1;
+}
+
+#endif /* CONFIG_MCAST_TFTP */
+
static __inline__ void
store_block (unsigned block, uchar * src, unsigned len)
{
- ulong offset = block * TFTP_BLOCK_SIZE + TftpBlockWrapOffset;
+ ulong offset = block * TftpBlkSize + TftpBlockWrapOffset;
ulong newsize = offset + len;
#ifdef CFG_DIRECT_FLASH_TFTP
int i, rc = 0;
{
(void)memcpy((void *)(load_addr + offset), src, len);
}
+#ifdef CONFIG_MCAST_TFTP
+ if (Multicast)
+ ext2_set_bit(block, Bitmap);
+#endif
if (NetBootFileXferSize < newsize)
NetBootFileXferSize = newsize;
int len = 0;
volatile ushort *s;
+#ifdef CONFIG_MCAST_TFTP
+ /* Multicast TFTP.. non-MasterClients do not ACK data. */
+ if (Multicast
+ && (TftpState == STATE_DATA)
+ && (MasterClient == 0))
+ return;
+#endif
/*
* We will always be sending some sort of packet, so
* cobble together the packet headers now.
printf("send option \"timeout %s\"\n", (char *)pkt);
#endif
pkt += strlen((char *)pkt) + 1;
+ /* try for more effic. blk size */
+ pkt += sprintf((char *)pkt,"blksize%c%d%c",
+ 0,htons(TftpBlkSizeOption),0);
+#ifdef CONFIG_MCAST_TFTP
+ /* Check all preconditions before even trying the option */
+ if (!ProhibitMcast
+ && (Bitmap=malloc(Mapsize))
+ && eth_get_dev()->mcast) {
+ free(Bitmap);
+ Bitmap=NULL;
+ pkt += sprintf((char *)pkt,"multicast%c%c",0,0);
+ }
+#endif /* CONFIG_MCAST_TFTP */
len = pkt - xp;
break;
- case STATE_DATA:
case STATE_OACK:
+#ifdef CONFIG_MCAST_TFTP
+ /* My turn! Start at where I need blocks I missed.*/
+ if (Multicast)
+ TftpBlock=ext2_find_next_zero_bit(Bitmap,(Mapsize*8),0);
+ /*..falling..*/
+#endif
+ case STATE_DATA:
xp = pkt;
s = (ushort *)pkt;
*s++ = htons(TFTP_ACK);
{
ushort proto;
ushort *s;
+ int i;
if (dest != TftpOurPort) {
+#ifdef CONFIG_MCAST_TFTP
+ if (Multicast
+ && (!Mcast_port || (dest != Mcast_port)))
+#endif
return;
}
if (TftpState != STATE_RRQ && src != TftpServerPort) {
#endif
TftpState = STATE_OACK;
TftpServerPort = src;
+ /* Check for 'blksize' option */
+ for (i=0;i<len-8;i++) {
+ if (strcmp ((char*)pkt+i,"blksize") == 0) {
+ TftpBlkSize = (unsigned short)
+ simple_strtoul((char*)pkt+i+8,NULL,10);
+#ifdef ET_DEBUG
+ printf ("Blocksize ack: %s, %d\n",
+ (char*)pkt+i+8,TftpBlkSize);
+#endif
+ break;
+ }
+ }
+#ifdef CONFIG_MCAST_TFTP
+ parse_multicast_oack((char *)pkt,len-1);
+ if ((Multicast) && (!MasterClient))
+ TftpState = STATE_DATA; /* passive.. */
+ else
+#endif
TftpSend (); /* Send ACK */
break;
case TFTP_DATA:
*/
if (TftpBlock == 0) {
TftpBlockWrap++;
- TftpBlockWrapOffset += TFTP_BLOCK_SIZE * TFTP_SEQUENCE_SIZE;
+ TftpBlockWrapOffset += TftpBlkSize * TFTP_SEQUENCE_SIZE;
printf ("\n\t %lu MB received\n\t ", TftpBlockWrapOffset>>20);
} else {
if (((TftpBlock - 1) % 10) == 0) {
TftpBlockWrap = 0;
TftpBlockWrapOffset = 0;
+#ifdef CONFIG_MCAST_TFTP
+ if (Multicast) { /* start!=1 common if mcast */
+ TftpLastBlock = TftpBlock - 1;
+ } else
+#endif
if (TftpBlock != 1) { /* Assertion */
printf ("\nTFTP error: "
"First block is not block 1 (%ld)\n"
* Acknoledge the block just received, which will prompt
* the server for the next one.
*/
+#ifdef CONFIG_MCAST_TFTP
+ /* if I am the MasterClient, actively calculate what my next
+ * needed block is; else I'm passive; not ACKING
+ */
+ if (Multicast) {
+ if (len < TftpBlkSize) {
+ TftpEndingBlock = TftpBlock;
+ } else if (MasterClient) {
+ TftpBlock = PrevBitmapHole =
+ ext2_find_next_zero_bit(
+ Bitmap,
+ (Mapsize*8),
+ PrevBitmapHole);
+ if (TftpBlock > ((Mapsize*8) - 1)) {
+ printf ("tftpfile too big\n");
+ /* try to double it and retry */
+ Mapsize<<=1;
+ mcast_cleanup();
+ NetStartAgain ();
+ return;
+ }
+ TftpLastBlock = TftpBlock;
+ }
+ }
+#endif
TftpSend ();
- if (len < TFTP_BLOCK_SIZE) {
+#ifdef CONFIG_MCAST_TFTP
+ if (Multicast) {
+ if (MasterClient && (TftpBlock >= TftpEndingBlock)) {
+ puts ("\nMulticast tftp done\n");
+ mcast_cleanup();
+ NetState = NETLOOP_SUCCESS;
+ }
+ }
+ else
+#endif
+ if (len < TftpBlkSize) {
/*
* We received the whole thing. Try to
* run it.
printf ("\nTFTP error: '%s' (%d)\n",
pkt + 2, ntohs(*(ushort *)pkt));
puts ("Starting again\n\n");
+#ifdef CONFIG_MCAST_TFTP
+ mcast_cleanup();
+#endif
NetStartAgain ();
break;
}
{
if (++TftpTimeoutCount > TIMEOUT_COUNT) {
puts ("\nRetry count exceeded; starting again\n");
+#ifdef CONFIG_MCAST_TFTP
+ mcast_cleanup();
+#endif
NetStartAgain ();
} else {
puts ("T ");
TftpState = STATE_RRQ;
/* Use a pseudo-random port unless a specific port is set */
TftpOurPort = 1024 + (get_timer(0) % 3072);
+
#ifdef CONFIG_TFTP_PORT
if ((ep = getenv("tftpdstp")) != NULL) {
TftpServerPort = simple_strtol(ep, NULL, 10);
/* zero out server ether in case the server ip has changed */
memset(NetServerEther, 0, 6);
+ /* Revert TftpBlkSize to dflt */
+ TftpBlkSize = TFTP_BLOCK_SIZE;
+#ifdef CONFIG_MCAST_TFTP
+ mcast_cleanup();
+#endif
TftpSend ();
}
-#endif
+#ifdef CONFIG_MCAST_TFTP
+/* Credits: atftp project.
+ */
+
+/* pick up BcastAddr, Port, and whether I am [now] the master-client. *
+ * Frame:
+ * +-------+-----------+---+-------~~-------+---+
+ * | opc | multicast | 0 | addr, port, mc | 0 |
+ * +-------+-----------+---+-------~~-------+---+
+ * The multicast addr/port becomes what I listen to, and if 'mc' is '1' then
+ * I am the new master-client so must send ACKs to DataBlocks. If I am not
+ * master-client, I'm a passive client, gathering what DataBlocks I may and
+ * making note of which ones I got in my bitmask.
+ * In theory, I never go from master->passive..
+ * .. this comes in with pkt already pointing just past opc
+ */
+static void parse_multicast_oack(char *pkt, int len)
+{
+ int i;
+ IPaddr_t addr;
+ char *mc_adr, *port, *mc;
+
+ mc_adr=port=mc=NULL;
+ /* march along looking for 'multicast\0', which has to start at least
+ * 14 bytes back from the end.
+ */
+ for (i=0;i<len-14;i++)
+ if (strcmp (pkt+i,"multicast") == 0)
+ break;
+ if (i >= (len-14)) /* non-Multicast OACK, ign. */
+ return;
+
+ i+=10; /* strlen multicast */
+ mc_adr = pkt+i;
+ for (;i<len;i++) {
+ if (*(pkt+i) == ',') {
+ *(pkt+i) = '\0';
+ if (port) {
+ mc = pkt+i+1;
+ break;
+ } else {
+ port = pkt+i+1;
+ }
+ }
+ }
+ if (!port || !mc_adr || !mc ) return;
+ if (Multicast && MasterClient) {
+ printf ("I got a OACK as master Client, WRONG!\n");
+ return;
+ }
+ /* ..I now accept packets destined for this MCAST addr, port */
+ if (!Multicast) {
+ if (Bitmap) {
+ printf ("Internal failure! no mcast.\n");
+ free(Bitmap);
+ Bitmap=NULL;
+ ProhibitMcast=1;
+ return ;
+ }
+ /* I malloc instead of pre-declare; so that if the file ends
+ * up being too big for this bitmap I can retry
+ */
+ if (!(Bitmap = malloc (Mapsize))) {
+ printf ("No Bitmap, no multicast. Sorry.\n");
+ ProhibitMcast=1;
+ return;
+ }
+ memset (Bitmap,0,Mapsize);
+ PrevBitmapHole = 0;
+ Multicast = 1;
+ }
+ addr = string_to_ip(mc_adr);
+ if (Mcast_addr != addr) {
+ if (Mcast_addr)
+ eth_mcast_join(Mcast_addr, 0);
+ if (eth_mcast_join(Mcast_addr=addr, 1)) {
+ printf ("Fail to set mcast, revert to TFTP\n");
+ ProhibitMcast=1;
+ mcast_cleanup();
+ NetStartAgain();
+ }
+ }
+ MasterClient = (unsigned char)simple_strtoul((char *)mc,NULL,10);
+ Mcast_port = (unsigned short)simple_strtoul(port,NULL,10);
+ printf ("Multicast: %s:%d [%d]\n", mc_adr, Mcast_port, MasterClient);
+ return;
+}
+
+#endif /* Multicast TFTP */
+
+#endif /* CFG_CMD_NET */
projects / u-boot / commitdiff