static void ResetAdapter(struct s_smc *smc)
{
pr_debug(KERN_INFO "[fddi: ResetAdapter]\n");
card_stop(smc);
mac_drv_clear_tx_queue(smc);
mac_drv_clear_rx_queue(smc);
smt_reset_defaults(smc, 1);
init_smt(smc, (smc->os.dev)->dev_addr);
smt_online(smc, 1);
STI_FBI();
skfp_ctl_set_multicast_list_wo_lock(smc->os.dev);
}
static int skfp_close(struct net_device *dev)
{
struct s_smc *smc = netdev_priv(dev);
skfddi_priv *bp = &smc->os;
CLI_FBI();
smt_reset_defaults(smc, 1);
card_stop(smc);
mac_drv_clear_tx_queue(smc);
mac_drv_clear_rx_queue(smc);
netif_stop_queue(dev);
free_irq(dev->irq, dev);
skb_queue_purge(&bp->SendSkbQueue);
bp->QueueSkb = MAX_TX_QUEUE_LEN;
return (0);
}
void process_receive(struct s_smc *smc)
{
int i ;
int n ;
int frag_count ; /* number of RxDs of the curr rx buf */
int used_frags ; /* number of RxDs of the curr frame */
struct s_smt_rx_queue *queue ; /* points to the queue ctl struct */
struct s_smt_fp_rxd volatile *r ; /* rxd pointer */
struct s_smt_fp_rxd volatile *rxd ; /* first rxd of rx frame */
u_long rbctrl ; /* receive buffer control word */
u_long rfsw ; /* receive frame status word */
u_short rx_used ;
u_char far *virt ;
char far *data ;
SMbuf *mb ;
u_char fc ; /* Frame control */
int len ; /* Frame length */
smc->os.hwm.detec_count = 0 ;
queue = smc->hw.fp.rx[QUEUE_R1] ;
NDD_TRACE("RHxB",0,0,0) ;
for ( ; ; ) {
r = queue->rx_curr_get ;
rx_used = queue->rx_used ;
frag_count = 0 ;
#ifdef USE_BREAK_ISR
if (smc->os.hwm.leave_isr) {
goto rx_end ;
}
#endif
#ifdef NDIS_OS2
if (offDepth) {
smc->os.hwm.rx_break = 1 ;
goto rx_end ;
}
smc->os.hwm.rx_break = 0 ;
#endif
#ifdef ODI2
if (smc->os.hwm.rx_break) {
goto rx_end ;
}
#endif
n = 0 ;
do {
DB_RX("Check RxD %x for OWN and EOF",(void *)r,0,5) ;
DRV_BUF_FLUSH(r,DDI_DMA_SYNC_FORCPU) ;
rbctrl = le32_to_cpu(CR_READ(r->rxd_rbctrl));
if (rbctrl & BMU_OWN) {
NDD_TRACE("RHxE",r,rfsw,rbctrl) ;
DB_RX("End of RxDs",0,0,4) ;
goto rx_end ;
}
/*
* out of RxD detection
*/
if (!rx_used) {
SK_BREAK() ;
SMT_PANIC(smc,HWM_E0009,HWM_E0009_MSG) ;
/* Either we don't have an RxD or all
* RxDs are filled. Therefore it's allowed
* for to set the STOPPED flag */
smc->hw.hw_state = STOPPED ;
mac_drv_clear_rx_queue(smc) ;
smc->hw.hw_state = STARTED ;
mac_drv_fill_rxd(smc) ;
smc->os.hwm.detec_count = 0 ;
goto rx_end ;
}
rfsw = le32_to_cpu(r->rxd_rfsw) ;
if ((rbctrl & BMU_STF) != ((rbctrl & BMU_ST_BUF) <<5)) {
/*
* The BMU_STF bit is deleted, 1 frame is
* placed into more than 1 rx buffer
*
* skip frame by setting the rx len to 0
*
* if fragment count == 0
* The missing STF bit belongs to the
* current frame, search for the
* EOF bit to complete the frame
* else
* the fragment belongs to the next frame,
* exit the loop and process the frame
*/
SK_BREAK() ;
rfsw = 0 ;
if (frag_count) {
break ;
}
}
n += rbctrl & 0xffff ;
r = r->rxd_next ;
frag_count++ ;
rx_used-- ;
} while (!(rbctrl & BMU_EOF)) ;
used_frags = frag_count ;
DB_RX("EOF set in RxD, used_frags = %d ",used_frags,0,5) ;
/* may be next 2 DRV_BUF_FLUSH() can be skipped, because */
/* BMU_ST_BUF will not be changed by the ASIC */
DRV_BUF_FLUSH(r,DDI_DMA_SYNC_FORCPU) ;
while (rx_used && !(r->rxd_rbctrl & cpu_to_le32(BMU_ST_BUF))) {
DB_RX("Check STF bit in %x",(void *)r,0,5) ;
r = r->rxd_next ;
DRV_BUF_FLUSH(r,DDI_DMA_SYNC_FORCPU) ;
frag_count++ ;
rx_used-- ;
}
DB_RX("STF bit found",0,0,5) ;
/*
* The received frame is finished for the process receive
*/
rxd = queue->rx_curr_get ;
queue->rx_curr_get = r ;
queue->rx_free += frag_count ;
queue->rx_used = rx_used ;
/*
* ASIC Errata no. 7 (STF - Bit Bug)
*/
rxd->rxd_rbctrl &= cpu_to_le32(~BMU_STF) ;
for (r=rxd, i=frag_count ; i ; r=r->rxd_next, i--){
DB_RX("dma_complete for RxD %x",(void *)r,0,5) ;
dma_complete(smc,(union s_fp_descr volatile *)r,DMA_WR);
}
smc->hw.fp.err_stats.err_valid++ ;
smc->mib.m[MAC0].fddiMACCopied_Ct++ ;
/* the length of the data including the FC */
len = (rfsw & RD_LENGTH) - 4 ;
DB_RX("frame length = %d",len,0,4) ;
/*
* check the frame_length and all error flags
*/
if (rfsw & (RX_MSRABT|RX_FS_E|RX_FS_CRC|RX_FS_IMPL)){
if (rfsw & RD_S_MSRABT) {
DB_RX("Frame aborted by the FORMAC",0,0,2) ;
smc->hw.fp.err_stats.err_abort++ ;
}
/*
* check frame status
*/
if (rfsw & RD_S_SEAC2) {
DB_RX("E-Indicator set",0,0,2) ;
smc->hw.fp.err_stats.err_e_indicator++ ;
}
if (rfsw & RD_S_SFRMERR) {
DB_RX("CRC error",0,0,2) ;
smc->hw.fp.err_stats.err_crc++ ;
}
if (rfsw & RX_FS_IMPL) {
DB_RX("Implementer frame",0,0,2) ;
smc->hw.fp.err_stats.err_imp_frame++ ;
}
goto abort_frame ;
}
if (len > FDDI_RAW_MTU-4) {
DB_RX("Frame too long error",0,0,2) ;
smc->hw.fp.err_stats.err_too_long++ ;
goto abort_frame ;
}
/*
* SUPERNET 3 Bug: FORMAC delivers status words
* of aborded frames to the BMU
*/
if (len <= 4) {
DB_RX("Frame length = 0",0,0,2) ;
goto abort_frame ;
}
if (len != (n-4)) {
DB_RX("BMU: rx len differs: [%d:%d]",len,n,4);
smc->os.hwm.rx_len_error++ ;
goto abort_frame ;
}
/*
* Check SA == MA
*/
virt = (u_char far *) rxd->rxd_virt ;
DB_RX("FC = %x",*virt,0,2) ;
if (virt[12] == MA[5] &&
virt[11] == MA[4] &&
virt[10] == MA[3] &&
virt[9] == MA[2] &&
virt[8] == MA[1] &&
(virt[7] & ~GROUP_ADDR_BIT) == MA[0]) {
goto abort_frame ;
}
/*
* test if LLC frame
*/
if (rfsw & RX_FS_LLC) {
/*
* if pass_llc_promisc is disable
* if DA != Multicast or Broadcast or DA!=MA
* abort the frame
*/
if (!smc->os.hwm.pass_llc_promisc) {
if(!(virt[1] & GROUP_ADDR_BIT)) {
if (virt[6] != MA[5] ||
virt[5] != MA[4] ||
virt[4] != MA[3] ||
virt[3] != MA[2] ||
virt[2] != MA[1] ||
virt[1] != MA[0]) {
DB_RX("DA != MA and not multi- or broadcast",0,0,2) ;
goto abort_frame ;
}
}
}
/*
* LLC frame received
*/
DB_RX("LLC - receive",0,0,4) ;
mac_drv_rx_complete(smc,rxd,frag_count,len) ;
}
else {
if (!(mb = smt_get_mbuf(smc))) {
smc->hw.fp.err_stats.err_no_buf++ ;
DB_RX("No SMbuf; receive terminated",0,0,4) ;
goto abort_frame ;
}
data = smtod(mb,char *) - 1 ;
/*
* copy the frame into a SMT_MBuf
*/
#ifdef USE_OS_CPY
hwm_cpy_rxd2mb(rxd,data,len) ;
#else
for (r=rxd, i=used_frags ; i ; r=r->rxd_next, i--){
n = le32_to_cpu(r->rxd_rbctrl) & RD_LENGTH ;
DB_RX("cp SMT frame to mb: len = %d",n,0,6) ;
memcpy(data,r->rxd_virt,n) ;
data += n ;
}
data = smtod(mb,char *) - 1 ;
#endif
fc = *(char *)mb->sm_data = *data ;
mb->sm_len = len - 1 ; /* len - fc */
data++ ;
/*
* SMT frame received
*/
switch(fc) {
case FC_SMT_INFO :
smc->hw.fp.err_stats.err_smt_frame++ ;
DB_RX("SMT frame received ",0,0,5) ;
if (smc->os.hwm.pass_SMT) {
DB_RX("pass SMT frame ",0,0,5) ;
mac_drv_rx_complete(smc, rxd,
frag_count,len) ;
}
else {
DB_RX("requeue RxD",0,0,5) ;
mac_drv_requeue_rxd(smc,rxd,frag_count);
}
smt_received_pack(smc,mb,(int)(rfsw>>25)) ;
break ;
case FC_SMT_NSA :
smc->hw.fp.err_stats.err_smt_frame++ ;
DB_RX("SMT frame received ",0,0,5) ;
/* if pass_NSA set pass the NSA frame or */
/* pass_SMT set and the A-Indicator */
/* is not set, pass the NSA frame */
if (smc->os.hwm.pass_NSA ||
(smc->os.hwm.pass_SMT &&
!(rfsw & A_INDIC))) {
DB_RX("pass SMT frame ",0,0,5) ;
mac_drv_rx_complete(smc, rxd,
frag_count,len) ;
}
else {
DB_RX("requeue RxD",0,0,5) ;
mac_drv_requeue_rxd(smc,rxd,frag_count);
}
smt_received_pack(smc,mb,(int)(rfsw>>25)) ;
break ;
case FC_BEACON :
if (smc->os.hwm.pass_DB) {
DB_RX("pass DB frame ",0,0,5) ;
mac_drv_rx_complete(smc, rxd,
frag_count,len) ;
}
else {
DB_RX("requeue RxD",0,0,5) ;
mac_drv_requeue_rxd(smc,rxd,frag_count);
}
smt_free_mbuf(smc,mb) ;
break ;
default :
/*
* unknown FC abord the frame
*/
DB_RX("unknown FC error",0,0,2) ;
smt_free_mbuf(smc,mb) ;
DB_RX("requeue RxD",0,0,5) ;
mac_drv_requeue_rxd(smc,rxd,frag_count) ;
if ((fc & 0xf0) == FC_MAC)
smc->hw.fp.err_stats.err_mac_frame++ ;
else
smc->hw.fp.err_stats.err_imp_frame++ ;
break ;
}
}
DB_RX("next RxD is %x ",queue->rx_curr_get,0,3) ;
NDD_TRACE("RHx1",queue->rx_curr_get,0,0) ;
continue ;
/*--------------------------------------------------------------------*/
abort_frame:
DB_RX("requeue RxD",0,0,5) ;
mac_drv_requeue_rxd(smc,rxd,frag_count) ;
DB_RX("next RxD is %x ",queue->rx_curr_get,0,3) ;
NDD_TRACE("RHx2",queue->rx_curr_get,0,0) ;
}
rx_end:
#ifdef ALL_RX_COMPLETE
mac_drv_all_receives_complete(smc) ;
#endif
return ; /* lint bug: needs return detect end of function */
}
