src/sys/dev/nfe, branch release/8.1.0

MFC r206876:

2010-04-26T18:02:12Z

With r206844, CSUM_TCP is also set for CSUM_TSO case. Modify drivers to take into account for the change. Basically CSUM_TSO should be checked before checking CSUM_TCP.

Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/

2009-06-26T11:45:06Z

IF_ADDR_UNLOCK() across network device drivers when accessing the per-interface multicast address list, if_multiaddrs. This will allow us to change the locking strategy without affecting our driver programming interface or binary interface. For two wireless drivers, remove unnecessary locking, since they don't actually access the multicast address list. Approved by: re (kib) MFC after: 6 weeks

When user_frac in the polling subsystem is low it is going to busy the

2009-05-30T15:14:44Z

CPU for too long period than necessary. Additively, interfaces are kept polled (in the tick) even if no more packets are available. In order to avoid such situations a new generic mechanism can be implemented in proactive way, keeping track of the time spent on any packet and fragmenting the time for any tick, stopping the processing as soon as possible. In order to implement such mechanism, the polling handler needs to change, returning the number of packets processed. While the intended logic is not part of this patch, the polling KPI is broken by this commit, adding an int return value and the new flag IFCAP_POLLING_NOCOUNT (which will signal that the return value is meaningless for the installed handler and checking should be skipped). Bump __FreeBSD_version in order to signal such situation. Reviewed by: emaste Sponsored by: Sandvine Incorporated

NVIDIA MCP controllers have no Rx buffer alignment restrictions.

2009-05-25T00:56:01Z

Remove PAGE_SIZE alignment used in Rx buffer DMA tag creation. The alignment restriction was used in old local jumbo allocator and nfe(4) switched to UMA backed page allocator for jumbo frame. This change should fix jumbo buffer allocation failure. Reported by: Pascal Braun ( pascal.braun <> continum dot net )

Fix a typo.

2008-12-20T00:04:04Z

Submitted by: clemens fischer via Shigeaki Tagashira

Add hardware MAC statistics support. Register information was

2008-10-03T03:58:16Z

obtained from Linux forcedeth driver. While I'm here move creating a sysctl node for process_limit to function nfe_sysctl_node(). Tested by: "Arno J. Klaassen" < arno heho dot snv dot jussieu dot fr >

Add device ids for MCP77/79 and set appropriate support flags.

2008-10-01T00:17:54Z

Obtained from: OpenBSD PR: kern/127529

Add support for MCP73 chips.

2008-04-10T01:25:09Z

Tested by: "Daan Vreeken [PA4DAN]" ( Danovitsch AT vitsch DOT net ) MFC after: 1 week

Nuke local jumbo allocator and switch to use of UMA backed page

2008-03-06T01:47:53Z

allocator for jumbo frame. Also remove unneeded jlist lock which is no longer required to protect jumbo buffers. With these changes jumbo frame performance of nfe(4) was slightly increased and users should not encounter jumbo buffer allocation failure anymore.

Give MEXTADD() another argument to make both void pointers to the

2008-02-01T19:36:27Z

free function controlable, instead of passing the KVA of the buffer storage as the first argument. Fix all conventional users of the API to pass the KVA of the buffer as the first argument, to make this a no-op commit. Likely break the only non-convetional user of the API, after informing the relevant committer. Update the mbuf(9) manual page, which was already out of sync on this point. Bump __FreeBSD_version to 800016 as there is no way to tell how many arguments a CPP macro needs any other way. This paves the way for giving sendfile(9) a way to wait for the passed storage to have been accessed before returning. This does not affect the memory layout or size of mbufs. Parental oversight by: sam and rwatson. No MFC is anticipated.