FreeBSD source tree https://cgit-dev.freebsd.org/src/atom?h=releng%2F11.0 2015-06-09T14:31:18Z 2015-06-09T14:31:18Z Sean Bruno sbruno@FreeBSD.org 2015-06-09T14:31:18Z urn:sha1:5296d0421ef486289f63f9b3fcafbcaa7b0ffb60 Submitted by: jfv MFC after: 2 week Sponsored by: Limelight Networks 2015-06-03T18:01:09Z Sean Bruno sbruno@FreeBSD.org 2015-06-03T18:01:09Z urn:sha1:23c9098b2a5ef222c90fd9f66be5de27fa19c0a2 up to 2 rx/tx queues for the 82574. Program the 82574 to enable 5 msix vectors, assign 1 to each rx queue, 1 to each tx queue and 1 to the link handler. Inspired by DragonFlyBSD, enable some RSS logic for handling tx queue handling/processing. Move multiqueue handler functions so that they line up better in a diff review to if_igb.c Always enqueue tx work to be done in em_mq_start, if unable to acquire the TX lock, then this will be processed in the background later by the taskqueue. Remove mbuf argument from em_start_mq_locked() as the work is always enqueued. (stolen from igb) Setup TARC, TXDCTL and RXDCTL registers for better performance and stability in multiqueue and singlequeue implementations. Handle Intel errata 3 and generic multiqueue behavior with the initialization of TARC(0) and TARC(1) Bind interrupt threads to cpus in order. (stolen from igb) Add 2 new DDB functions, one to display the queue(s) and their settings and one to reset the adapter. Primarily used for debugging. In the multiqueue configuration, bump RXD and TXD ring size to max for the adapter (4096). Setup an RDTR of 64 and an RADV of 128 in multiqueue configuration to cut down on the number of interrupts. RADV was arbitrarily set to 2x RDTR and can be adjusted as needed. Cleanup the display in top a bit to make it clearer where the taskqueue threads are running and what they should be doing. Ensure that both queues are processed by em_local_timer() by writing them both to the IMS register to generate soft interrupts. Ensure that an soft interrupt is generated when em_msix_link() is run so that any races between assertion of the link/status interrupt and a rx/tx interrupt are handled. Document existing tuneables: hw.em.eee_setting, hw.em.msix, hw.em.smart_pwr_down, hw.em.sbp Document use of hw.em.num_queues and the new kernel option EM_MULTIQUEUE Thanks to Intel for their continued support of FreeBSD. Reviewed by: erj jfv hiren gnn wblock Obtained from: Intel Corporation MFC after: 2 weeks Relnotes: Yes Sponsored by: Limelight Networks Differential Revision: https://reviews.freebsd.org/D1994 2014-08-04T22:37:02Z Warner Losh imp@FreeBSD.org 2014-08-04T22:37:02Z urn:sha1:aeaed508982227551b2748339033bb2483382b4d opt_inet6.h into kmod.mk by forcing almost everybody to eat the same dogfood. While at it, consolidate the opt_bpf.h and opt_mroute.h targets here too. 2014-05-06T04:22:01Z Warner Losh imp@FreeBSD.org 2014-05-06T04:22:01Z urn:sha1:c6063d0da8e1f8d8452b0c2ee1c7ad718c1a7052 from the latter. 2013-07-12T22:36:26Z Jack F Vogel jfv@FreeBSD.org 2013-07-12T22:36:26Z urn:sha1:a1db87ec73dd672c8255ec5495ee74706ba1a74c 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 2012-07-06T20:14:27Z Konstantin Belousov kib@FreeBSD.org 2012-07-06T20:14:27Z urn:sha1:9775776ce27b85f5ce2b74177c8154ddee4887c7 MFC after: 4 days 2010-08-16T17:48:55Z Pyun YongHyeon yongari@FreeBSD.org 2010-08-16T17:48:55Z urn:sha1:9b1f97079c5255ef7ea87fa302faccaf93b4bd2a While here also remove man target in igb(4). Reviewed by: jfv 2010-07-01T21:03:30Z Jack F Vogel jfv@FreeBSD.org 2010-07-01T21:03:30Z urn:sha1:cb18cb4d7c7dc3f8cd49ec75495a8ed1d6607dbf it wasnt needed but it is. 2010-03-29T23:36:34Z Jack F Vogel jfv@FreeBSD.org 2010-03-29T23:36:34Z urn:sha1:8ec87fc5149977b627672979fb2e593310e8bbae em revision 7.0.0: - Using driver devclass, seperate legacy (pre-pcie) code into a seperate source file. This will at least help protect against regression issues. It compiles along with em, and is transparent to end use, devices in each appear to be 'emX'. When using em in a modular form this also allows the legacy stuff to be defined out. - Add tx and rx rings as in igb, in the 82574 this becomes actual multiqueue for the first time (2 queues) while in other PCIE adapters its just make code cleaner. - Add RX mbuf handling logic that matches igb, this will eliminate packet drops due to temporary mbuf shortage. igb revision 1.9.3: - Following the ixgbe code, use a new approach in what was called 'get_buf', the routine now has been made independent of rxeof, it now does the update to the engine TDT register, this design allows temporary mbuf resources to become non-critical, not requiring a packet to be discarded, instead it just returns and does not increment the tail pointer. - With the above change it was also unnecessary to keep 'spare' maps around, since we do not have the discard issue. - Performance tweaks and improvements to the code also. MFC in a week 2008-11-12T21:32:49Z Bjoern A. Zeeb bz@FreeBSD.org 2008-11-12T21:32:49Z urn:sha1:4174a06b60e722e9defdcc4db9e6a73468615767 checks for #ifdef INET. MFC after: 54 days