KolibriOS/kolibrios
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R6040: Improved interrupt handeling.

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git-svn-id: svn://kolibrios.org@9158 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
hidnplayr 2021-08-28 09:34:24 +00:00
parent 650af770ae
commit d297ba3894
1 changed files with 50 additions and 83 deletions
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133
drivers/ethernet/R6040.asm
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@ -1,6 +1,6 @@
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;; ;; ;;
;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;; ;; Copyright (C) KolibriOS team 2004-2021. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;; ;; Distributed under terms of the GNU General Public License ;;
;; ;; ;; ;;
;; R6040 driver for KolibriOS ;; ;; R6040 driver for KolibriOS ;;
@ -15,6 +15,8 @@
;; ;; ;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; TODO: test for RX-overrun
format PE DLL native format PE DLL native
entry START entry START
@ -31,8 +33,8 @@ entry START
TX_TIMEOUT = 6000 ; Time before concluding the transmitter is hung, in ms TX_TIMEOUT = 6000 ; Time before concluding the transmitter is hung, in ms
TX_RING_SIZE = 4 ; RING sizes must be a power of 2 TX_RING_SIZE = 16 ; RING sizes must be a power of 2
RX_RING_SIZE = 4 RX_RING_SIZE = 16
RX_BUF_LEN_IDX = 3 ; 0==8K, 1==16K, 2==32K, 3==64K RX_BUF_LEN_IDX = 3 ; 0==8K, 1==16K, 2==32K, 3==64K
@ -379,17 +381,6 @@ endp
;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;; ;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;;
;mdio_read:
; stdcall phy_read, [ebx + device.io_addr], [ebx + device.phy_addr], ecx
; ret
;mdio_write:
; stdcall phy_write, [ebx + device.io_addr], [ebx + device.phy_addr], ecx, eax
; ret
align 4 align 4
unload: unload:
; TODO: (in this particular order) ; TODO: (in this particular order)
@ -602,7 +593,7 @@ reset:
;Enable RX ;Enable RX
mov ax, [ebx + device.mcr0] mov ax, [ebx + device.mcr0]
or ax, MCR0_RCVEN or ax, MCR0_RCVEN
set_io [ebx + device.io_addr], 0 set_io [ebx + device.io_addr], MCR0
out dx, ax out dx, ax
;Let TX poll the descriptors ;Let TX poll the descriptors
@ -738,13 +729,13 @@ phy_mode_chk:
;; Transmit ;; ;; Transmit ;;
;; ;; ;; ;;
;; In: pointer to device structure in ebx ;; ;; In: pointer to device structure in ebx ;;
;; Out: eax = 0 on success ;;
;; ;; ;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
align 16
proc transmit stdcall bufferptr proc transmit stdcall bufferptr
pushf spin_lock_irqsave
cli
mov esi, [bufferptr] mov esi, [bufferptr]
DEBUGF 1,"Transmitting packet, buffer:%x, size:%u\n", [bufferptr], [esi + NET_BUFF.length] DEBUGF 1,"Transmitting packet, buffer:%x, size:%u\n", [bufferptr], [esi + NET_BUFF.length]
@ -755,9 +746,9 @@ proc transmit stdcall bufferptr
[eax+13]:2,[eax+12]:2 [eax+13]:2,[eax+12]:2
cmp [esi + NET_BUFF.length], 1514 cmp [esi + NET_BUFF.length], 1514
ja .fail ja .error
cmp [esi + NET_BUFF.length], 60 cmp [esi + NET_BUFF.length], 60
jb .fail jb .error
movzx edi, [ebx + device.cur_tx] movzx edi, [ebx + device.cur_tx]
shl edi, 5 shl edi, 5
@ -767,10 +758,7 @@ proc transmit stdcall bufferptr
DEBUGF 1,"TX buffer status: 0x%x\n", [edi + x_head.status]:4 DEBUGF 1,"TX buffer status: 0x%x\n", [edi + x_head.status]:4
test [edi + x_head.status], DSC_OWNER_MAC ; check if buffer is available test [edi + x_head.status], DSC_OWNER_MAC ; check if buffer is available
jnz .wait_to_send jnz .overrun
.do_send:
DEBUGF 1,"Sending now\n"
mov [edi + x_head.skb_ptr], esi mov [edi + x_head.skb_ptr], esi
mov eax, esi mov eax, esi
@ -796,32 +784,25 @@ proc transmit stdcall bufferptr
add dword[ebx + device.bytes_tx], eax add dword[ebx + device.bytes_tx], eax
adc dword[ebx + device.bytes_tx + 4], 0 adc dword[ebx + device.bytes_tx + 4], 0
popf spin_unlock_irqrestore
xor eax, eax xor eax, eax
ret ret
.wait_to_send: .error:
DEBUGF 1,"Waiting for TX buffer\n" DEBUGF 2, "TX packet error\n"
invoke GetTimerTicks ; returns in eax inc [ebx + device.packets_tx_err]
lea edx, [eax + 100]
.l2:
mov esi, [bufferptr]
test [edi + x_head.status], DSC_OWNER_MAC
jz .do_send
popf
mov esi, 10
invoke Sleep
invoke GetTimerTicks
pushf
cli
cmp edx, eax
jb .l2
DEBUGF 2,"Send timeout\n"
.fail:
DEBUGF 2,"Send failed\n"
invoke NetFree, [bufferptr] invoke NetFree, [bufferptr]
popf
spin_unlock_irqrestore
or eax, -1
ret
.overrun:
DEBUGF 2, "TX overrun\n"
inc [ebx + device.packets_tx_ovr]
invoke NetFree, [bufferptr]
spin_unlock_irqrestore
or eax, -1 or eax, -1
ret ret
@ -834,44 +815,24 @@ endp
;; Interrupt handler ;; ;; Interrupt handler ;;
;; ;; ;; ;;
;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;
align 16
align 4
int_handler: int_handler:
push ebx esi edi push ebx esi edi
DEBUGF 1,"int\n" mov ebx, [esp+4*4]
DEBUGF 1,"INT for 0x%x\n", ebx
; Find pointer of device wich made IRQ occur ; TODO? if we are paranoid, we can check that the value from ebx is present in the current device_list
mov ecx, [devices]
test ecx, ecx
jz .nothing
mov esi, device_list
.nextdevice:
mov ebx, [esi]
set_io [ebx + device.io_addr], 0 set_io [ebx + device.io_addr], 0
set_io [ebx + device.io_addr], MISR set_io [ebx + device.io_addr], MISR
in ax, dx in ax, dx
out dx, ax ; send it back to ACK
test ax, ax test ax, ax
jnz .got_it jz .nothing
.continue:
add esi, 4
dec ecx
jnz .nextdevice
.nothing:
pop edi esi ebx
xor eax, eax
ret ; If no device was found, abort out dx, ax ; ACK interrupt
DEBUGF 1,"Status: %x\n", ax
; At this point, test for all possible reasons, and handle accordingly
.got_it:
DEBUGF 1,"Device: %x Status: %x\n", ebx, ax
push ax push ax
@ -934,12 +895,10 @@ int_handler:
; At last, send packet to kernel ; At last, send packet to kernel
jmp [EthInput] jmp [EthInput]
.no_RX: .no_RX:
test word[esp], TX_FINISH test word[esp], TX_FINISH
jz .no_TX jz .no_TX
.loop_tx: .loop_tx:
movzx edi, [ebx + device.last_tx] movzx edi, [ebx + device.last_tx]
shl edi, 5 shl edi, 5
@ -961,47 +920,55 @@ int_handler:
and [ebx + device.last_tx], TX_RING_SIZE - 1 and [ebx + device.last_tx], TX_RING_SIZE - 1
jmp .loop_tx jmp .loop_tx
.no_TX: .no_TX:
test word[esp], RX_NO_DESC test word[esp], RX_NO_DESC
jz .no_rxdesc jz .no_rxdesc
DEBUGF 2, "No more RX descriptors!\n" DEBUGF 2, "No more RX descriptors!\n"
.no_rxdesc: .no_rxdesc:
test word[esp], RX_FIFO_FULL test word[esp], RX_FIFO_FULL
jz .no_rxfifo jz .no_rxfifo
DEBUGF 2, "RX FIFO full!\n" DEBUGF 2, "RX FIFO full!\n"
.no_rxfifo: .no_rxfifo:
test word[esp], RX_EARLY test word[esp], RX_EARLY
jz .no_rxearly jz .no_rxearly
DEBUGF 2, "RX early\n" DEBUGF 2, "RX early\n"
.no_rxearly: .no_rxearly:
test word[esp], TX_EARLY test word[esp], TX_EARLY
jz .no_txearly jz .no_txearly
DEBUGF 2, "TX early\n" DEBUGF 2, "TX early\n"
.no_txearly: .no_txearly:
test word[esp], EVENT_OVRFL test word[esp], EVENT_OVRFL
jz .no_ovrfl jz .no_ovrfl
DEBUGF 2, "Event counter overflow!\n" DEBUGF 2, "Event counter overflow!\n"
.no_ovrfl: .no_ovrfl:
test word[esp], LINK_CHANGED test word[esp], LINK_CHANGED
jz .no_link jz .no_link
DEBUGF 2, "Link changed\n" DEBUGF 2, "Link changed\n"
.no_link: .no_link:
pop ax pop ax
pop edi esi ebx pop edi esi ebx
xor eax, eax
inc eax
ret
.nothing:
pop edi esi ebx
xor eax, eax
ret ret