src-test2/sys/dev/e1000, branch release/10.0.0

Update the Intel igb driver to version 2.4.0

2013-10-09T17:32:52Z

- This version has support for the new Intel Avoton systems, including 2.5Gb support, further it now has IPv6/TSO6 support as well. Shared code has been updated where necessary as well. Thanks to my new assistant Eric Joyner for doing the transmit path changes to bring in the IPv6/TSO6 support. Thanks to Gleb for catching the one bug and change needed in NETMAP. Approved by: re

Expose system level ixgbe sysctls.

2013-10-05T19:17:56Z

Device level sysctls are already exposed as dev.ix. Fixing the case where number of queues for igb is auto-tuned and hw.igb.num_queues does not return current/updated value. Reviewed by: jfv Approved by: re (delphij) MFC after: 2 weeks

Restructure the mbuf pkthdr to make it fit for upcoming capabilities and

2013-08-24T19:51:18Z

features. The changes in particular are: o Remove rarely used "header" pointer and replace it with a 64bit protocol/ layer specific union PH_loc for local use. Protocols can flexibly overlay their own 8 to 64 bit fields to store information while the packet is worked on. o Mechanically convert IP reassembly, IGMP/MLD and ATM to use pkthdr.PH_loc instead of pkthdr.header. o Extend csum_flags to 64bits to allow for additional future offload information to be carried (e.g. iSCSI, IPsec offload, and others). o Move the RSS hash type enumerator from abusing m_flags to its own 8bit rsstype field. Adjust accessor macros. o Add cosqos field to store Class of Service / Quality of Service information with the packet. It is not yet supported in any drivers but allows us to get on par with Cisco/Juniper in routing applications (plus MPLS QoS) with a modernized ALTQ. o Add four 8 bit fields l[2-5]hlen to store the relative header offsets from the start of the packet. This is important for various offload capabilities and to relieve the drivers from having to parse the packet and protocol headers to find out location of checksums and other information. Header parsing in drivers is a lot of copy-paste and unhandled corner cases which we want to avoid. o Add another flexible 64bit union to map various additional persistent packet information, like ether_vtag, tso_segsz and csum fields. Depending on the csum_flags settings some fields may have different usage making it very flexible and adaptable to future capabilities. o Restructure the CSUM flags to better signify their outbound (down the stack) and inbound (up the stack) use. The CSUM flags used to be a bit chaotic and rather poorly documented leading to incorrect use in many places. Bring clarity into their use through better naming. Compatibility mappings are provided to preserve the API. The drivers can be corrected one by one and MFC'd without issue. o The size of pkthdr stays the same at 48/56bytes (32/64bit architectures). Sponsored by: The FreeBSD Foundation

Alter the mq_start routine to do a TRYLOCK and call to the locked routine

2013-08-13T00:25:39Z

rather than just queueing. The former code was an attempt at getting UDP performance up, but there have been customer reports of problems with it, so the ixgbe approach seems the best solution for now.

Update PCI drivers to no longer look at the MEMIO-enabled bit in the PCI

2013-08-12T23:30:01Z

command register. The lazy BAR allocation code in FreeBSD sometimes disables this bit when it detects a range conflict, and will re-enable it on demand when a driver allocates the BAR. Thus, the bit is no longer a reliable indication of capability, and should not be checked. This results in the elimination of a lot of code from drivers, and also gives the opportunity to simplify a lot of drivers to use a helper API to set the busmaster enable bit. This changes fixes some recent reports of disk controllers and their associated drives/enclosures disappearing during boot. Submitted by: jhb Reviewed by: jfv, marius, achadd, achim MFC after: 1 day

Improve the MSIX setup code in the drivers, thanks to Marius for

2013-08-12T22:54:38Z

the changes. Make sure that pci_alloc_msix() does give us the vectors we need and fall back to MSI when it doesn't, also release any that were allocated when insufficient. MFC after: 3 days

Make the various driver MSIX setup routines fallback to MSI more

2013-08-06T21:01:38Z

gracefully. This change was suggested by Marius Strobl, thank you. PR: kern/181016 MFC after: ASAP

When the igb driver is static there are cases when early interrupts occur,

2013-08-06T18:00:53Z

resulting in a panic in refresh_mbufs, to prevent this add a check in the interrupt handler for DRV_RUNNING. MFC after: 1 day (critical for 9.2)

Change the E1000 driver option header handling to match the

2013-07-12T22:36:26Z

ixgbe driver. As it was, when building them as a module INET and INET6 are not defined. In these drivers it does not cause a panic, however it does result in different behavior in the ioctl routine when you are using a module vs static, and I think the behavior should be the same. MFC after: 3 days

if_lem.c: make sure that lem_rxeof() can drain the entire rx queue

2013-05-09T17:07:30Z

irrespective of the setting of lem_rx_process_limit, while giving a chance to the taskqueue scheduler to act after each chunk. This makes lem_rxeof similar to the one in if_em.c and if_igb.c . if_lem.c and if_em.c: add a sysctl to manually configure the 'itr' moderation register. Approved by: Jack Vogel