RE: My vote against eepro* removal
From: kus Kusche Klaus <hidden>
Date: 2006-01-20 11:27:51
Also in:
lkml
From: Evgeniy Polyakov
quoted hunk
Just a hack:--- drivers/net/e100.c.1 2006-01-20 13:39:19.000000000 +0300 +++ drivers/net/e100.c 2006-01-20 14:15:40.000000000 +0300@@ -879,8 +879,8 @@ writel((reg << 16) | (addr << 21) | dir | data,&nic->csr->mdi_ctrl); - for(i = 0; i < 100; i++) { - udelay(20); + for(i = 0; i < 1000; i++) { + udelay(2); if((data_out = readl(&nic->csr->mdi_ctrl)) & mdi_ready) break; }
My test environment and software is not precise enough for small improvements, but I'd say this results in a 10-15 % improvement (i.e. something like 50 us shorter delay) on the average. To be sure, one would have to take and print tsc timestamps directly in the watchdog code, but printk's mess up my timings. -- Klaus Kusche (Software Development - Control Systems) KEBA AG Gewerbepark Urfahr, A-4041 Linz, Austria (Europe) Tel: +43 / 732 / 7090-3120 Fax: +43 / 732 / 7090-6301 E-Mail: kus@keba.com WWW: www.keba.com