| 1227,7 → 1227,7 |
|---|
| push eax esi ecx |
| DEBUGF 1,"TX ok!\n" |
| .loop_tx: |
| ; get last descriptor |
| ; go to last descriptor |
| mov eax, [ebx + device.last_tx] |
| mov edx, sizeof.desc |
| mul edx |
| 1243,7 → 1243,7 |
|---|
| DEBUGF 1,"Free buffer 0x%x\n", [eax + TX_RING_SIZE*sizeof.desc] |
| invoke KernelFree, [eax + TX_RING_SIZE*sizeof.desc] |
| |
| ; advance to next descriptor |
| ; next descriptor |
| inc [ebx + device.last_tx] |
| and [ebx + device.last_tx], TX_RING_SIZE-1 |
| |
| 1254,7 → 1254,6 |
|---|
| |
| ;---------------------------------- |
| ; RX irq |
| |
| test eax, CSR5_RI |
| jz .not_rx |
| push eax esi ecx |
| 1271,7 → 1270,7 |
|---|
| mul edx |
| lea edi, [ebx + device.rx_ring + eax] |
| |
| ; Check current RX descriptor status |
| ; now check status |
| mov eax, [edi + desc.status] |
| |
| test eax, DES0_OWN |
| 1283,18 → 1282,24 |
|---|
| test eax, RDES0_ES |
| jnz .end_rx |
| |
| ; Calculate length |
| mov esi, [edi + RX_RING_SIZE*sizeof.desc] |
| mov ecx, [edi + desc.status] |
| shr ecx, RDES0_FL_SH |
| and ecx, RDES0_FL_MASK |
| sub ecx, 4 ; throw away the CRC |
| DEBUGF 1,"got %u bytes\n", ecx |
| sub ecx, 4 ; crc, we dont need it |
| |
| ; Push arguments for Eth_input (and some more...) |
| DEBUGF 1,"size=%u, addr:0x%x\n", ecx, esi |
| |
| push esi edi ecx |
| invoke KernelAlloc, ecx ; Allocate a buffer to put packet into |
| pop ecx edi esi |
| test eax, eax |
| jz .fail |
| |
| push ebx |
| push .rx_loop ; return addr |
| push ecx ; packet size |
| push dword[edi + RX_RING_SIZE*sizeof.desc] ; packet ptr |
| push dword .rx_loop |
| push ecx eax |
| xchg edi, eax |
| |
| ; update statistics |
| inc [ebx + device.packets_rx] |
| 1301,21 → 1306,27 |
|---|
| add dword[ebx + device.bytes_rx], ecx |
| adc dword[ebx + device.bytes_rx + 4], 0 |
| |
| ; Allocate new descriptor |
| push edi ebx |
| invoke KernelAlloc, 1536 ; Allocate a buffer to put packet into |
| pop ebx edi |
| mov [edi + RX_RING_SIZE*sizeof.desc], eax |
| invoke GetPhysAddr |
| mov [edi + desc.buffer1], eax |
| mov [edi + desc.status], DES0_OWN ; mark descriptor as being free |
| ; copy packet data |
| shr cx, 1 |
| jnc .nb |
| movsb |
| .nb: |
| shr cx, 1 |
| jnc .nw |
| movsw |
| .nw: |
| rep movsd |
| |
| ; Move to next rx desc |
| mov [eax + desc.status], DES0_OWN ; free descriptor |
| |
| inc [ebx + device.cur_rx] ; next descriptor |
| and [ebx + device.cur_rx], RX_RING_SIZE-1 |
| |
| jmp [Eth_input] |
| |
| .end_rx: |
| .fail: |
| pop ecx esi eax |
| .not_rx: |
| |
| pop edi esi ebx |