On Wed, Apr 16, 2008 at 4:54 PM, Jung-uk Kim <[EMAIL PROTECTED]> wrote: > On Wednesday 16 April 2008 04:28 pm, Alexander Sack wrote: > > On Wed, Apr 16, 2008 at 2:56 PM, Jung-uk Kim <[EMAIL PROTECTED]> > wrote: > > > [CC trimmed] > > > > > > On Wednesday 16 April 2008 02:20 pm, Alexander Sack wrote: > > > > Dieter: Thanks, at 20Mbps! That's pretty aweful. > > > > > > > > JK: Thanks again. Wow, I searched the list and didn't see > > > > much discussion with respect to bge and packet loss! I will > > > > try the rest of that patch including pushing the TCP receive > > > > buffer up (though I don't think that's going to help in this > > > > case). The above is based on just looking at code.... > > > > > > > > I guess some follow-up questions would be: > > > > > > > > 1) Why isn't BGE_SSLOTS tunable (to a point)? Why can't that > > > > be added the driver? I noticed that CURRENT has added a lot > > > > more SYSCTL information. Moreover it seems the Linux driver > > > > can set it up to 1024. > > > > > > IIRC, Linux tg3 uses one ring for both standard and jumbo. > > > > I'm talking about the number of slots within the ring not the > > number of RX queues. > > > > I believe the bnx4 driver (thought the tg stuff was deprecated??) > > uses 4 rings (one for each port perhaps) and reads hardware > > register at ISR time to flip between them. > > I guess you are reading wrong source, i.e., bnx4(?) is NetXtreme II > driver, which totally different family. We support them with bce(4). > tg3 is still official Linux driver.
You are correct, I got the names confused (this problem really stinks)! However, my point still stands: #define TG3_RX_RCB_RING_SIZE(tp) ((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ? 512 : 1024) Even the Linux driver uses higher number of RX descriptors than FreeBSD's static 256. I think minimally making this tunable is a fair approach. If not, no biggie, but I think its worth it. -aps _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "[EMAIL PROTECTED]"
