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\ Hypervisor Software File: pkg.fth
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id: @(#)pkg.fth 1.1 07/01/23
copyright: Copyright 2007 Sun Microsystems, Inc. All Rights Reserved
copyright: Use is subject to license terms.
defer open-hook ' noop to open-hook
defer close-hook ' noop to close-hook
: init-obp-tftp ( tftp-args$ -- okay? )
" obp-tftp" find-package if
cmn-warn[ " Cannot open obp-tftp package" ]cmn-end
\ Bind channel selected by my-dma-chan to this port's TXC
1 chan# lshift port txc-port-dma-p!
\ Clear DMA_LENGTH, which is the number of bytes transmitted by DMA.
\ This register is cleared on reads.
chan# txc-dma-max-len-i@ drop
port txc-debug! \ Select debug for the used port
\ Set TXC_ENABLED (bit 4) of TXC_CONTROL to enable TXC. Set
\ p-th bit to enable only the engine for port p
txc-enabled 1 port lshift or txc-control!
portmode 1g-copper = if phy-sr@ physr.ext-status and 0<> else false then
: publish-post-open-properties ( -- )
auto-speed of " auto" endof
1000Mbps of " 1000" endof
encode-string " speed" property
auto-duplex of " auto" endof
half-duplex of " half" endof
full-duplex of " full" endof
encode-string " duplex" property
auto-link-clock of " auto" endof
master-link-clock of " master" endof
slave-link-clock of " slave" endof
encode-string " link-clock" property
\ Tx-header is very important. Even if we set CKSUM_EN_PKT_TYPE to 0
\ to disable checksum, TOT_XFER_LEN should still be set correctly.
\ That is because the Neptune expects this number to be TR_LEN (of
\ the Tx descriptor) minus 16
\ bits[63:62] CKSUM_EN_PKT_TYPE 0: No op, do not do checksum, 01 TCP, 10 UDP
\ bits61 IP_VER 0=IPv4 1=IPv61
\ bit[29:16] TOT_XFER_LEN
2 field >tot-xfer-len-rsvd1
1 field >vlan-llc-rsvd4-ip-ver-cksum-en-pkt-type
/tx-header buffer: tx-header
: make-tx-header ( ether-frame-len -- )
wbflip tx-header >tot-xfer-len-rsvd1 w!
\ b29:16 = tot-xfer-len = /loopback-pkt - tx-header
\ = /dst-src-macs + /ether-type + /loopback-data
0 tx-header >pad-rsvd0 w! \ b15:3=RSVD=0, b2:0=PAD=0
19 tx-header >l4stuff-rsvd2 c!
\ b39:38=RSVD=b00. b37:32 L4STUFF = (14+20+16)/2 = 25 =0x19
\ L4STUFF is where the tcp checksum is, which is at
\ 16 from the begining of TCP's first byte
11 tx-header >l4start-rsvd3 c!
\ b47:46=RSVD=b00. b45:40=L4START = (6+6+2+20)/2 = 17=0x11
57 tx-header >l3start-ihl c!
\ b55:52 IHL IP header = 5 (5x4B=20B)
\ b51:48 L3START=[6(DA)+6(SA)+2(type)]/2 = 7
0 tx-header >vlan-llc-rsvd4-ip-ver-cksum-en-pkt-type c!
\ b63:62=CKSUM_EN_PKT_TYPE=1=TCP cksum. b61=IP_VER=0=IPv4
\ b63:62=CKSUM_EN_PKT_TYPE=0=No cksum. b61=IP_VER=0=IPv4
\ b60:58=RSVD=b000, b57=LLC = 0 b56=VLAN = 0
0 tx-header >rsvd5 x! \ First 8B of Tx header is RSVD
\ XMAC and BMAC do not support padding, so the driver needs to
\ ensure that the ethernet frame is minimun 60 bytes (Ethernet
\ standard requires a minimun 46B of payload. 46B plus 12B dest
\ and src MAC addresses and 2B ether-type = 60B)
: write ( appl-buf len -- #sent )
cmn-note[ " Link down, restarting network initialization" ]cmn-end
tbuf0 swap ( appl-buf tbuf-cpu-adr len )
\ If the packet from upper layer is shorter than 60B, then
\ fill out the first 60 bytes of tbuf with zeros so that all
\ the padding bytes will be zeros.
dup /min-ether-len < if ( appl-buf tbuf-cpu-adr len )
over /min-ether-len erase ( appl-buf tbuf-cpu-adr len )
2dup ( appl-buf tbuf-cpu-adr len tbuf-cpu-adr len )
>r >r ( appl-buf tbuf-cpu-adr len )( R: len tbuf-cpu-adr )
\ Construct tx-header required by Neptune
/min-ether-len make-tx-header
dup make-tx-header ( appl-buf tbuf-cpu-adr len )
\ First copy the tx-header just constructed by make-tx-header
over tx-header swap ( appl-buf tbuf-cpu-adr len tx-header tbuf-cpu-adr )
/tx-header move ( appl-buf tbuf-cpu-adr len )
\ Next copy the ethernet frame passed down from upper layer
swap /tx-header + swap ( appl-buf tbuf-cpu-adr+16 len )
move ( )( R: len tbuf-cpu-adr )
r> r> ( tbuf-cpu-adr len )( R: )
tuck ( len tbuf-cpu-adr len )
then ( len tbuf-cpu-adr LEN )
/tx-header + ( len tbuf-cpu-adr LEN' )
\ Application data has been copied from application data buffer
\ to the 4K Tx block buffer pointed by nexttmd. The data is appended
\ to Tx header and may be followed by some zero padding bytes if the
\ data size is < 60. Now send data out to the network
: read ( buf len -- -2 | actual-bytes-read )
rcr-has-pkt? if ( buf len )
get-pkt-addr&len-from-rcr ( buf len nextrcdaddr pkt-cpu-adr pktlen )
swap full-header + swap ( buf len nextrcdaddr pkt-cpu-adr' pktlen )
\ pkt-cpu-adr' = pkt-cpu-adr+18
?dup if ( buf len nextrcdaddr pkt-cpu-adr' pktlen )
rot >r ( buf len pkt-cpu-adr' pktlen )( R: nextrcdaddr )
rot ( buf pkt-cpu-adr' pktlen len )
min ( buf pkt-cpu-adr' min[pktlen,len] )
>r ( buf pkt-cpu-adr' )( R: nextrcdaddr min )
swap ( pkt-cpu-adr' buf )( R: nextrcdaddr min )
r@ ( pkt-cpu-adr' buf min )( R: nextrcdaddr min )
move r> r> ( min nextrcdaddr )( R: )
else ( buf len nextrcdaddr pkt-cpu-adr' )
drop ( buf len nextrcdaddr )
nip nip 0 swap ( 0 nextrcdaddr )
return-rx-buffer ( min|0 )
2drop 0 \ drop buf and len and put a 0 on stack
?dup 0= if -2 then \ Upper layer wants to see -2 if we got 0
obp-tftp ?dup if close-package then
my-args parse-devargs ( tftp-args$ )
init-obp-tftp 0= if close false exit then
bringup-link ?dup 0= if close false exit then
publish-post-open-properties
mac-address encode-bytes " mac-address" property
" load" obp-tftp $call-method
projects / OpenSPARC-T2-SAM / blob