2021-07-03 05:07:57 +01:00
< ! DOCTYPE HTML >
< html >
< head >
< meta http - equiv = " Content-Type " content = " text/html;charset=US-ASCII " >
< meta name = " generator " content = " ZealOS V0.05 " >
< style type = " text/css " >
body { background - color : # 000000 ; }
. cF0 { color : # ffffff ; background - color : # 000000 ; }
. cF1 { color : # 3465 a4 ; background - color : # 000000 ; }
. cF2 { color : # 4e9 a06 ; background - color : # 000000 ; }
. cF3 { color : # 06 989 a ; background - color : # 000000 ; }
. cF4 { color : # a24444 ; background - color : # 000000 ; }
. cF5 { color : # 75507 b ; background - color : # 000000 ; }
. cF6 { color : # ce982f ; background - color : # 000000 ; }
. cF7 { color : # bcc0b9 ; background - color : # 000000 ; }
. cF8 { color : # 555753 ; background - color : # 000000 ; }
. cF9 { color : # 729f cf ; background - color : # 000000 ; }
. cFA { color : # 82 bc49 ; background - color : # 000000 ; }
. cFB { color : # 34e2 e2 ; background - color : # 000000 ; }
. cFC { color : # ac3535 ; background - color : # 000000 ; }
. cFD { color : # ad7fa8 ; background - color : # 000000 ; }
. cFE { color : # fce94f ; background - color : # 000000 ; }
. cFF { color : # 000000 ; background - color : # 000000 ; }
< / style >
< / head >
< body >
2021-07-05 01:12:38 +01:00
< pre style = " font-family:monospace;font-size:12pt " >
2021-07-04 23:11:34 +01:00
< a name = " l1 " > < / a > < span class = cF2 > /*</span><span class=cF0> </span><span class=cF2>Shrine mentions possibly using two FIFOs</span><span class=cF0>
< a name = " l2 " > < / a > < / span > < span class = cF2 > ( in our case , Queues ) for pending and < / span > < span class = cF0 >
< a name = " l3 " > < / a > < / span > < span class = cF2 > empty frames . If logical to implement , < / span > < span class = cF0 >
< a name = " l4 " > < / a > < / span > < span class = cF2 > perhaps Zeal NetQueue code should < / span > < span class = cF0 >
< a name = " l5 " > < / a > < / span > < span class = cF2 > do something similar to that idea . < / span > < span class = cF0 >
2021-07-03 05:07:57 +01:00
< a name = " l6 " > < / a >
2021-07-04 23:11:34 +01:00
< a name = " l7 " > < / a > < / span > < span class = cF2 > Each Ethernet Frame will be represented < / span > < span class = cF0 >
< a name = " l8 " > < / a > < / span > < span class = cF2 > as an entry in a CQueue . */ < / span > < span class = cF0 >
2021-07-03 05:07:57 +01:00
< a name = " l9 " > < / a >
< a name = " l10 " > < / a > < / span > < span class = cF1 > class < / span > < span class = cF0 > CNetQueueEntry : < / span > < span class = cF9 > CQueue < / span > < span class = cF0 >
< a name = " l11 " > < / a > {
2021-07-04 23:11:34 +01:00
< a name = " l12 " > < / a > < / span > < span class = cF9 > I64 < / span > < span class = cF0 > packet_length ;
< a name = " l13 " > < / a > < / span > < span class = cF1 > U8 < / span > < span class = cF0 > frame [ ETHERNET_FRAME_SIZE ] ;
2021-07-03 05:07:57 +01:00
< a name = " l14 " > < / a > } ;
< a name = " l15 " > < / a >
< a name = " l16 " > < / a >
2021-07-04 23:11:34 +01:00
< a name = " l17 " > < / a > < / span > < span class = cF2 > /*</span><span class=cF0> </span><span class=cF2>global variable, holds pointer of Ethernet Queue.</span><span class=cF0>
< a name = " l18 " > < / a > < / span > < span class = cF2 > This acts as the Head of the Queue , Entries act < / span > < span class = cF0 >
< a name = " l19 " > < / a > < / span > < span class = cF2 > as the Tail of the Queue . < / span > < span class = cF0 >
< a name = " l20 " > < / a > < / span > < span class = cF2 > Upon QueueInit , - & gt ; next and - & gt ; last are set to < / span > < span class = cF0 >
< a name = " l21 " > < / a > < / span > < span class = cF2 > itself , the Head . */ < / span > < span class = cF0 >
2021-07-03 05:07:57 +01:00
< a name = " l22 " > < / a >
< a name = " l23 " > < / a > < / span > < span class = cF9 > CQueue < / span > < span class = cF0 > * net_queue ; < / span > < span class = cF2 > // no QueueRemove the Head! only Entries!</span><span class=cF0>
< a name = " l24 " > < / a >
< a name = " l25 " > < / a >
2021-07-04 23:11:34 +01:00
< a name = " l26 " > < / a > < / span > < span class = cF2 > /*</span><span class=cF0> </span><span class=cF2>PCNet reroutes PCI interrupts to software. See </span><span class=cF4><u>PCNet</u></span><span class=cF2>.</span><span class=cF0>
< a name = " l27 " > < / a > < / span > < span class = cF2 > Net Handler interrupt is generated whenever an entry is < / span > < span class = cF0 >
< a name = " l28 " > < / a > < / span > < span class = cF2 > pushed to the NetQueue . See < / span > < span class = cF4 > < u > NetHandler < / u > < / span > < span class = cF2 > */ < / span > < span class = cF0 >
2021-07-03 05:07:57 +01:00
< a name = " l29 " > < / a >
2021-07-04 23:11:34 +01:00
< a name = " l30 " > < / a > # < / span > < span class = cF1 > define < / span > < span class = cF0 > I_PCNET0 < / span > < span class = cF3 > I_USER < / span > < span class = cF0 > + < / span > < span class = cFE > 0 < / span > < span class = cF0 >
< a name = " l31 " > < / a > # < / span > < span class = cF1 > define < / span > < span class = cF0 > I_PCNET1 < / span > < span class = cF3 > I_USER < / span > < span class = cF0 > + < / span > < span class = cFE > 1 < / span > < span class = cF0 >
< a name = " l32 " > < / a > # < / span > < span class = cF1 > define < / span > < span class = cF0 > I_PCNET2 < / span > < span class = cF3 > I_USER < / span > < span class = cF0 > + < / span > < span class = cFE > 2 < / span > < span class = cF0 >
< a name = " l33 " > < / a > # < / span > < span class = cF1 > define < / span > < span class = cF0 > I_PCNET3 < / span > < span class = cF3 > I_USER < / span > < span class = cF0 > + < / span > < span class = cFE > 3 < / span > < span class = cF0 >
2021-07-03 05:07:57 +01:00
< a name = " l34 " > < / a > # < / span > < span class = cF1 > define < / span > < span class = cF0 > I_NETHANDLER < / span > < span class = cF3 > I_USER < / span > < span class = cF0 > + < / span > < span class = cFE > 4 < / span > < span class = cF0 >
< a name = " l35 " > < / a >
< a name = " l36 " > < / a > # < / span > < span class = cF1 > define < / span > < span class = cF0 > INT_DEST_CPU < / span > < span class = cFE > 0 < / span > < span class = cF0 >
< a name = " l37 " > < / a >
< a name = " l38 " > < / a > < / span > < span class = cF1 > U0 < / span > < span class = cF0 > NetQueueInit ( )
< a name = " l39 " > < / a > {
2021-07-04 23:11:34 +01:00
< a name = " l40 " > < / a > net_queue = < / span > < span class = cF5 > CAlloc < / span > < span class = cF0 > ( < / span > < span class = cF1 > sizeof < / span > < span class = cF7 > ( < / span > < span class = cF9 > CQueue < / span > < span class = cF7 > ) < / span > < span class = cF0 > ) ;
< a name = " l41 " > < / a > < / span > < span class = cF5 > QueueInit < / span > < span class = cF0 > ( net_queue ) ;
2021-07-03 05:07:57 +01:00
< a name = " l42 " > < / a > }
< a name = " l43 " > < / a >
< a name = " l44 " > < / a > CNetQueueEntry * NetQueuePull ( )
2021-07-04 23:11:34 +01:00
< a name = " l45 " > < / a > { < / span > < span class = cF2 > /*</span><span class=cF0> </span><span class=cF2>Returns a pointer to a CNetQueueEntry,</span><span class=cF0>
< a name = " l46 " > < / a > < / span > < span class = cF2 > or NULL pointer if Net Queue is empty . */ < / span > < span class = cF0 >
2021-07-03 05:07:57 +01:00
< a name = " l47 " > < / a >
2021-07-04 23:11:34 +01:00
< a name = " l48 " > < / a > CNetQueueEntry * entry ;
2021-07-03 05:07:57 +01:00
< a name = " l49 " > < / a >
2021-07-04 23:11:34 +01:00
< a name = " l50 " > < / a > < / span > < span class = cF1 > if < / span > < span class = cF0 > ( net_queue - & gt ; next ! = net_queue )
< a name = " l51 " > < / a > < / span > < span class = cF7 > { < / span > < span class = cF0 >
< a name = " l52 " > < / a > entry = net_queue - & gt ; next ;
2021-07-03 05:07:57 +01:00
< a name = " l53 " > < / a >
2021-07-04 23:11:34 +01:00
< a name = " l54 " > < / a > NetLog ( < / span > < span class = cF6 > & quot ; NETQUEUE PULL : Removing entry from queue . & quot ; < / span > < span class = cF0 > ) ;
< a name = " l55 " > < / a > < / span > < span class = cF5 > QueueRemove < / span > < span class = cF0 > ( entry ) ;
< a name = " l56 " > < / a > < / span > < span class = cF7 > } < / span > < span class = cF0 >
< a name = " l57 " > < / a > < / span > < span class = cF1 > else < / span > < span class = cF0 > < / span > < span class = cF2 > // Queue is empty if head->next is head itself.</span><span class=cF0>
< a name = " l58 " > < / a > < / span > < span class = cF7 > { < / span > < span class = cF0 >
< a name = " l59 " > < / a > entry = < / span > < span class = cF3 > NULL < / span > < span class = cF0 > ;
< a name = " l60 " > < / a > < / span > < span class = cF7 > } < / span > < span class = cF0 >
2021-07-03 05:07:57 +01:00
< a name = " l61 " > < / a >
2021-07-04 23:11:34 +01:00
< a name = " l62 " > < / a > < / span > < span class = cF1 > return < / span > < span class = cF0 > entry ;
2021-07-03 05:07:57 +01:00
< a name = " l63 " > < / a > }
< a name = " l64 " > < / a >
< a name = " l65 " > < / a > < / span > < span class = cF1 > U0 < / span > < span class = cF0 > NetQueuePush ( < / span > < span class = cF1 > U8 < / span > < span class = cF0 > * data , < / span > < span class = cF9 > I64 < / span > < span class = cF0 > length )
2021-07-04 23:11:34 +01:00
< a name = " l66 " > < / a > { < / span > < span class = cF2 > /*</span><span class=cF0> </span><span class=cF2>Pushes a copy of the packet data and length</span><span class=cF0>
< a name = " l67 " > < / a > < / span > < span class = cF2 > into the Net Queue . The NetQueueEntry is inserted < / span > < span class = cF0 >
< a name = " l68 " > < / a > < / span > < span class = cF2 > after the last entry of net_queue to keep new < / span > < span class = cF0 >
< a name = " l69 " > < / a > < / span > < span class = cF2 > items in the back of the Queue , old in front . */ < / span > < span class = cF0 >
2021-07-03 05:07:57 +01:00
< a name = " l70 " > < / a >
2021-07-04 23:11:34 +01:00
< a name = " l71 " > < / a > CNetQueueEntry * entry = < / span > < span class = cF5 > CAlloc < / span > < span class = cF0 > ( < / span > < span class = cF1 > sizeof < / span > < span class = cF7 > ( < / span > < span class = cF0 > CNetQueueEntry < / span > < span class = cF7 > ) < / span > < span class = cF0 > ) ;
2021-07-03 05:07:57 +01:00
< a name = " l72 " > < / a >
2021-07-04 23:11:34 +01:00
< a name = " l73 " > < / a > entry - & gt ; packet_length = length ;
2021-07-03 05:07:57 +01:00
< a name = " l74 " > < / a >
2021-07-04 23:11:34 +01:00
< a name = " l75 " > < / a > < / span > < span class = cF5 > MemCopy < / span > < span class = cF0 > ( entry - & gt ; frame , data , length ) ;
2021-07-03 05:07:57 +01:00
< a name = " l76 " > < / a >
2021-07-04 23:11:34 +01:00
< a name = " l77 " > < / a > < / span > < span class = cF5 > QueueInsert < / span > < span class = cF0 > ( entry , net_queue - & gt ; last ) ;
2021-07-03 05:07:57 +01:00
< a name = " l78 " > < / a >
2021-07-04 23:11:34 +01:00
< a name = " l79 " > < / a > < / span > < span class = cF2 > // Generate Net Handler interrupt.</span><span class=cF0>
< a name = " l80 " > < / a > NetLog ( < / span > < span class = cF6 > & quot ; NETQUEUE PUSH COPY : Generating NetHandler interrupt . & quot ; < / span > < span class = cF0 > ) ;
< a name = " l81 " > < / a > < / span > < span class = cF5 > MPInt < / span > < span class = cF0 > ( I_NETHANDLER , INT_DEST_CPU ) ;
2021-07-03 05:07:57 +01:00
< a name = " l82 " > < / a > }
< a name = " l83 " > < / a >
< a name = " l84 " > < / a >
< a name = " l85 " > < / a > NetQueueInit ; < / span > < / pre > < / body >
< / html >
