| # PCI tweaking article: |
| # http://www.gentoo.org/doc/en/articles/hardware-stability-p2.xml |
| # |
| # Apply to all devices: |
| # PCIPARM_ALL="...." |
| # Cards also can be addressed by vid:pid or by bus:slot.func |
| # (see setpci man page relative to -d and -s options) |
| # PCIPARM_(BUS|VENDOR)_#="...." |
| # Where # is sequentially numbered from zero. |
| |
| # Examples: |
| # "open up" the PCI bus by allowing fairly long bursts |
| # for all devices, increasing performance |
| # (equivalent to: setpci -v -d *:* latency_timer=b0) |
| #PCIPARM_ALL="latency_timer=b0" |
| |
| # maximize latency timers for network and audio, |
| # allowing them to transmit more data per burst, |
| # preventing buffer over/under-run conditions |
| #PCIPARM_BUS_0="00:04.0 latency_timer=ff" |
| #PCIPARM_BUS_1="01:04.0 latency_timer=ff" |
| #PCIPARM_VENDOR_0="1057:3410 latency_timer=ff" |
| |
| # -v : whether to be verbose about changes |
| # -D : dry-run, no commit |
| # -f : do not warn if the change is already set |
| # (see the setpci manpage for more advanced options) |
| SETPCI_OPT="-f" |
