FreeBSD source tree https://cgit-dev.freebsd.org/src-test2/atom?h=release%2F11.3.0 2018-12-04T17:40:56Z 2018-12-04T17:40:56Z Vincenzo Maffione vmaffione@FreeBSD.org 2018-12-04T17:40:56Z urn:sha1:6d6d3f62b0e244d40adfbfc82c7f4b3aa1f14f70 netmap: align codebase to the current upstream (sha 8374e1a7e6941) Changelist: - Move large parts of VALE code to a new file and header netmap_bdg.[ch]. This is useful to reuse the code within upcoming projects. - Improvements and bug fixes to pipes and monitors. - Introduce nm_os_onattach(), nm_os_onenter() and nm_os_onexit() to handle differences between FreeBSD and Linux. - Introduce some new helper functions to handle more host rings and fake rings (netmap_all_rings(), netmap_real_rings(), ...) - Added new sysctl to enable/disable hw checksum in emulated netmap mode. - nm_inject: add support for NS_MOREFRAG Approved by: gnn (mentor) Differential Revision: https://reviews.freebsd.org/D17364 2018-03-29T02:50:57Z Eitan Adler eadler@FreeBSD.org 2018-03-29T02:50:57Z urn:sha1:4ab2e064d7950be84256d671a7ae93f87cc6aa36 This was intended to be a non-functional change. It wasn't. The commit message was thus wrong. In addition it broke arm, and merged crypto related code. Revert with prejudice. This revert skips files touched in r316370 since that commit was since MFCed. This revert also skips files that require $FreeBSD$ property changes. Thank you to those who helped me get out of this mess including but not limited to gonzo, kevans, rgrimes. Requested by: gjb (re) 2018-03-14T03:19:51Z Eitan Adler eadler@FreeBSD.org 2018-03-14T03:19:51Z urn:sha1:be5d0b9566b13fdf8cabebb63334cbec12bfc409 These changes are incomplete but are making it difficult to determine what other changes can/should be merged. No objections from: pfg 2014-06-06T18:02:32Z Luigi Rizzo luigi@FreeBSD.org 2014-06-06T18:02:32Z urn:sha1:997b054cf10b391fd4796b5e92c286ebd1fb1405 so it is easier to buil the same code on linux (this generalizes the change in svn 267142) MFC after: 3 days 2014-06-06T00:24:04Z Andrey Zonov zont@FreeBSD.org 2014-06-06T00:24:04Z urn:sha1:dc8a95e62bdd5dc2a17f57f3352094f1692fccb4 Reviewed by: luigi MFC after: 1 week 2014-01-06T12:53:15Z Luigi Rizzo luigi@FreeBSD.org 2014-01-06T12:53:15Z urn:sha1:17885a7bfde9d164e45a9833bb172215c55739f9 Most relevant features: - netmap emulation on any NIC, even those without native netmap support. On the ixgbe we have measured about 4Mpps/core/queue in this mode, which is still a lot more than with sockets/bpf. - seamless interconnection of VALE switch, NICs and host stack. If you disable accelerations on your NIC (say em0) ifconfig em0 -txcsum -txcsum you can use the VALE switch to connect the NIC and the host stack: vale-ctl -h valeXX:em0 allowing sharing the NIC with other netmap clients. - THE USER API HAS SLIGHTLY CHANGED (head/cur/tail pointers instead of pointers/count as before). This was unavoidable to support, in the future, multiple threads operating on the same rings. Netmap clients require very small source code changes to compile again. On the plus side, the new API should be easier to understand and the internals are a lot simpler. The manual page has been updated extensively to reflect the current features and give some examples. This is the result of work of several people including Giuseppe Lettieri, Vincenzo Maffione, Michio Honda and myself, and has been financially supported by EU projects CHANGE and OPENLAB, from NetApp University Research Fund, NEC, and of course the Universita` di Pisa. 2013-12-15T08:37:24Z Luigi Rizzo luigi@FreeBSD.org 2013-12-15T08:37:24Z urn:sha1:f9790aeb8869bfcedf111517bace712b390e6cc5 - netmap.c base code - netmap_freebsd.c FreeBSD-specific code - netmap_generic.c emulate netmap over standard drivers - netmap_mbq.c simple mbuf tailq - netmap_mem2.c memory management - netmap_vale.c VALE switch simplify devce-specific code