Hi Tano Great to hear that you've now got this working!! I understand you are using a Broadcom network card, from your previous posts I can see you are using the 'bnx' driver.
I will raise this as a bug, but first please would you run '/usr/X11/bin/scanpci' to indentify the exact 'vendor id' and 'device id' for the Broadcom network chipset, and report that back here. I must admit that this is the first I have heard of 'I/OAT DMA', so I did some Googling on it, and found this links: http://opensolaris.org/os/community/arc/caselog/2008/257/onepager/ To quote from that ARC case: "All new Sun Intel based platforms have Intel I/OAT (I/O Acceleration Technology) hardware. The first such hardware is an on-systemboard asynchronous DMA engine code named Crystal Beach. Through a set of RFEs Solaris will use this hardware to implement TCP receive side zero CPU copy via a socket." Ok, so I think that makes some sense, in the context of the problem we were seeing. It's referring to how the network adaptor transfers the data it has received, out of the buffer and onto the rest of the operating system. I've just looked to see if I can find the source code for the BNX driver, but I cannot find it. Digging deeper we find on this page: http://www.opensolaris.org/os/about/no_source/ ..on the 'ON' tab, that: "Components for which there are currently no plans to release source" bnx driver (B) Broadcom NetXtreme II Gigabit Ethernet driver So the bnx driver is closed source :-( Regards Nigel Smith -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
