xfnw/plan9fox
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

nusb/ether: tune buffer size parameters for SMSC ethernet (raspi) (thanks richard miller)

Browse source
This commit is contained in:
cinap_lenrek 2018-10-20 19:29:18 +02:00
parent 499478eb62
commit 29865005f9
1 changed files with 5 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

13
sys/src/cmd/nusb/ether/smsc.c
View file

@ -14,10 +14,9 @@ enum {
Resettime = 1000,
E2pbusytime = 1000,
Afcdefault = 0xF830A1,
// Hsburst = 37, /* from original linux driver */
Hsburst = 8,
Hsburst = 24,
Fsburst = 129,
Defbulkdly = 0x2000,
Defbulkdly = 1000,
Ethp8021q = 0x8100,
MACoffset = 1,
@ -211,11 +210,9 @@ smscreceive(Dev *ep)
uint hd;
int n;
if(Doburst)
b = allocb(Hsburst*512);
else
b = allocb(Maxpkt+4);
if((n = read(ep->dfd, b->wp, b->lim - b->base)) < 0){
n = Doburst? Hsburst*512 : Maxpkt+4;
b = allocb(n);
if((n = read(ep->dfd, b->wp, n)) < 0){
freeb(b);
return -1;
}