ref: cfee7b8885e8384340e6e8fcd3276b9a87632c53
parent: 4d021dab1e1d94f235f5ea3a9091abf07a3c325e
author: cinap_lenrek <cinap_lenrek@felloff.net>
date: Sat Oct 20 15:29:18 EDT 2018
nusb/ether: tune buffer size parameters for SMSC ethernet (raspi) (thanks richard miller)
--- a/sys/src/cmd/nusb/ether/smsc.c
+++ b/sys/src/cmd/nusb/ether/smsc.c
@@ -14,10 +14,9 @@
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 @@
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;
}
--
⑨