Date: Thu, 15 Nov 2018 12:46:44 -0800 (PST) From: "Rodney W. Grimes" <freebsd@pdx.rh.CN85.dnsmgr.net> To: Vincenzo Maffione <vmaffione@freebsd.org> Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: Re: svn commit: r340461 - in stable/12/sys/dev: netmap virtio/network Message-ID: <201811152046.wAFKkiNH042882@pdx.rh.CN85.dnsmgr.net> In-Reply-To: <201811151851.wAFIpbA4025094@repo.freebsd.org>
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> Author: vmaffione > Date: Thu Nov 15 18:51:37 2018 > New Revision: 340461 > URL: https://svnweb.freebsd.org/changeset/base/340461 > > Log: > MFC :r340436 > > vtnet: fix netmap support > > netmap(4) support for vtnet(4) was incomplete and had multiple bugs. > This commit fixes those bugs to bring netmap on vtnet in a functional state. > > Changelist: > - handle errors returned by virtqueue_enqueue() properly (they were > previously ignored) > - make sure netmap XOR rest of the kernel access each virtqueue. > - compute the number of netmap slots for TX and RX separately, according to > whether indirect descriptors are used or not for a given virtqueue. > - make sure sglist are freed according to their type (mbufs or netmap > buffers) > - add support for mulitiqueue and netmap host (aka sw) rings. > - intercept VQ interrupts directly instead of intercepting them in txq_eof > and rxq_eof. This simplifies the code and makes it easier to make sure > taskqueues are not running for a VQ while it is in netmap mode. > - implement vntet_netmap_config() to cope with changes in the number of queues. > > Sponsored by: Sunny Valley Networks > Differential Revision: https://reviews.freebsd.org/D17916 > Approved by: re (gjb) Thank you for getting this merged early, intime for RC1. -- Rod Grimes rgrimes@freebsd.org
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