2017-03-11 09:40:19 +03:00
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$NetBSD: TODO.smpnet,v 1.8 2017/03/11 06:40:19 ozaki-r Exp $
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2017-01-24 12:05:27 +03:00
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2017-02-10 06:59:02 +03:00
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MP-safe components
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==================
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2017-01-24 12:05:27 +03:00
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2017-03-09 09:21:54 +03:00
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- Device drivers
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- vioif(4)
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- vmx(4)
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- wm(4)
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2017-03-11 09:40:19 +03:00
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- ixg(4)
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2017-03-09 09:21:54 +03:00
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- Layer 2
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- Ethernet (if_ethersubr.c)
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- bridge(4)
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- STP
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- Fast forward (ipflow)
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- Layer 3
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- All except for items in the below section
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- Interfaces
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- gif(4)
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- l2tp(4)
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- pppoe(4)
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- if_spppsubr.c
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- tun(4)
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- Packet filters
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- npf(7)
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- Others
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- bpf(4)
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- pfil(9)
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2017-02-10 06:59:02 +03:00
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Non MP-safe components and kernel options
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=========================================
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2017-03-09 09:21:54 +03:00
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- Device drivers
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- Most drivers other than ones listed in the above section
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2017-03-08 10:32:58 +03:00
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- Layer 2
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- ARCNET (if_arcsubr.c)
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- ATM (if_atmsubr.c)
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- BRIDGE_IPF
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- if_ecosubr.c
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- FDDI (if_fddisubr.c)
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- HIPPI (if_hippisubr.c)
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- IEEE 1394 (if_ieee1394subr.c)
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- IEEE 802.11 (ieee80211(4))
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- Token ring (if_tokensubr.c)
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- Layer 3
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- IPSELSRC
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- MROUTING
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- PIM
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- MPLS (mpls(4))
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- Layer 4
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- DCCP
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- SCTP
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- TCP
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- UDP
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- Interfaces
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- agr(4)
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- carp(4)
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- etherip(4)
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- faith(4)
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- gre(4)
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- ppp(4)
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- sl(4)
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- stf(4)
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- strip(4)
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- if_srt
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- tap(4)
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- vlan(4)
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- Packet filters
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- ipf(4)
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- pf(4)
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- Others
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- AppleTalk (sys/netatalk/)
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- ATM (sys/netnatm/)
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- Bluetooth (sys/netbt/)
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- altq(4)
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- CIFS (sys/netsmb/)
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- ipsec(4)
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- ISDN (sys/netisbn/)
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- kttcp(4)
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- NFS
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- opencrypto(9)
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2017-02-10 06:59:02 +03:00
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Know issues
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===========
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2017-01-24 12:05:27 +03:00
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bpf
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2017-02-10 06:59:02 +03:00
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---
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2017-01-24 12:05:27 +03:00
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MP-ification of bpf requires all of bpf_mtap* are called in normal LWP context
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or softint context, i.e., not in hardware interrupt context. For Tx, all
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bpf_mtap satisfy the requrement. For Rx, most of bpf_mtap are called in softint.
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Unfortunately some bpf_mtap on Rx are still called in hardware interrupt context.
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This is the list of the functions that have such bpf_mtap:
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- sca_frame_process() @ sys/dev/ic/hd64570.c
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- en_intr() @ sys/dev/ic/midway.c
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- rxintr_cleanup() and txintr_cleanup() @ sys/dev/pci/if_lmc.c
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- ipr_rx_data_rdy() @ sys/netisdn/i4b_ipr.c
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Ideally we should make the functions run in softint somehow, but we don't have
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actual devices, no time (or interest/love) to work on the task, so instead we
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provide a deferred bpf_mtap mechanism that forcibly runs bpf_mtap in softint
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context. It's a workaround and once the functions run in softint, we should use
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the original bpf_mtap again.
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