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Differential D18015

netmap: align codebase to the current upstream (sha afa26bc3bc416)
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Authored by vmaffione on Nov 17 2018, 1:46 PM.
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ae
imp

Details

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gnn
hrs
Commits
rS342033: MFC r341516, r341589
rS341815: MFC r341516, r341589
rS341516: netmap: align codebase to the current upstream (760279cfb2730a585)
Summary

Changelist:

  • Replace netmap passthrough host support with a more general mechanism to call TXSYNC/RXSYNC from an in-kernel event-loop. No kernel threads are used to use this feature: the application is required to spawn a thread (or a process) and issue a SYNC_KLOOP_START (NIOCCTRL) command in the thread body. The kernel loop is executed by the ioctl implementation, which returns to userspace only when a different thread calls SYNC_KLOOP_STOP or the netmap file descriptor is closed.
  • Update the if_ptnet driver to cope with the new data structures, and prune all the obsolete ptnetmap code.
  • Add support for "null" netmap ports, useful to allocate netmap_if, netmap_ring and netmap buffers to be used by specialized applications (e.g. hypervisors). TXSYNC/RXSYNC on these ports have no effect.
  • Various fixes and code refactoring.
Test Plan

Unit tests and integration tests run successful.
Tested if_ptnet over QEMU/KVM in several configurations.
Code used in production on Linux.

Diff Detail

Repository
rS FreeBSD src repository - subversion
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Event Timeline

vmaffione created this revision.Nov 17 2018, 1:46 PM
Herald added subscribers: ae, imp. · View Herald TranscriptNov 17 2018, 1:46 PM
vmaffione updated this revision to Diff 50523.Nov 17 2018, 1:52 PM

Add back $FreeBSD$ strings

vmaffione updated this revision to Diff 51600.Dec 5 2018, 11:47 AM

Import bug fix from upstream.

This revision was not accepted when it landed; it landed in state Needs Review.Dec 5 2018, 11:58 AM
Closed by commit rS341516: netmap: align codebase to the current upstream (760279cfb2730a585) (authored by vmaffione). · Explain Why
This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

PathSize
head/
sys/
conf/
6 lines
dev/
netmap/
2 lines
166 lines
12 lines
478 lines
45 lines
354 lines
99 lines
72 lines
341 lines
916 lines
18 lines
4 lines
153 lines
184 lines
12 lines
379 lines
modules/
netmap/
14 lines
net/
212 lines
31 lines
214 lines

Diff 51601

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head/sys/conf/files

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head/sys/dev/netmap/if_ixl_netmap.h

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head/sys/dev/netmap/if_ptnet.c

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head/sys/dev/netmap/if_vtnet_netmap.h

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head/sys/dev/netmap/netmap.c

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head/sys/dev/netmap/netmap_bdg.h

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head/sys/dev/netmap/netmap_bdg.c

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head/sys/dev/netmap/netmap_freebsd.c

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head/sys/dev/netmap/netmap_generic.c

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head/sys/dev/netmap/netmap_kern.h

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head/sys/dev/netmap/netmap_kloop.c

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head/sys/dev/netmap/netmap_legacy.c

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head/sys/dev/netmap/netmap_mem2.h

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head/sys/dev/netmap/netmap_mem2.c

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head/sys/dev/netmap/netmap_null.c

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head/sys/dev/netmap/netmap_pipe.c

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head/sys/dev/netmap/netmap_vale.c

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head/sys/modules/netmap/Makefile

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head/sys/net/netmap.h

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head/sys/net/netmap_user.h

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head/sys/net/netmap_virt.h

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