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547d34736b
List of functional changes:
- Make a single device per single node with a single hook.
This gives us parrallelizm, which can't be achieved on a single
node with many devices/hooks. This also gives us flexibility - we
can play with a particular device node, not affecting others.
- Remove read queue as it is. Use struct ifqueue instead. This change
removes a lot of extra memcpy()ing, m_devget()ting and m_copymem()ming.
In ng_device_receivedata() we enqueue an mbuf and wake readers.
In ngdread() we take one mbuf from qeueue and uiomove() it to
userspace. If no mbuf is present we optionally block. [1]
- In ngdwrite() we create an mbuf from uio using m_uiotombuf().
This is faster then uiomove() into buffer, and then m_copydata(),
and this is much better than huge m_pullup().
- Perform locking of device
- Perform locking of connection list.
- Clear out _rcvmsg method, since it does nothing good yet.
- Implement NGM_DEVICE_GET_DEVNAME message.
- #if 0 ioctl method, while nothing is done here yet.
- Return immediately from ngdwrite() if uio_resid == 0.
List of tidyness changes:
- Introduce device2priv(), to remove cut'n'paste.
- Use MALLOC/FREE, instead of malloc/free.
- Use unit2minor().
- Use UID_ROOT/GID_WHEEL instead of 0/0.
- Define NGD_DEVICE_DEVNAME, use it.
- Use more nice macros for debugging. [2]
- Return Exxx, not -1.
style(9) changes:
- No "#endif" after short block.
- Break long lines.
- Remove extra spaces, add needed spaces.
[1] Obtained from: if_tun.c
[2] Obtained from: ng_pppoe.c
Reviewed by: marks
Approved by: julian (mentor)
MFC after: 1 month
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| .. | ||
| async | ||
| atm | ||
| atmllc | ||
| bluetooth | ||
| bpf | ||
| bridge | ||
| cisco | ||
| device | ||
| echo | ||
| eiface | ||
| etf | ||
| ether | ||
| fec | ||
| frame_relay | ||
| gif | ||
| gif_demux | ||
| hole | ||
| hub | ||
| iface | ||
| ip_input | ||
| ksocket | ||
| l2tp | ||
| lmi | ||
| mppc | ||
| netflow | ||
| netgraph | ||
| one2many | ||
| ppp | ||
| pppoe | ||
| pptpgre | ||
| rfc1490 | ||
| sample | ||
| socket | ||
| source | ||
| split | ||
| sppp | ||
| sync_ar | ||
| sync_sr | ||
| tee | ||
| tty | ||
| UI | ||
| vjc | ||
| vlan | ||
| Makefile | ||
| Makefile.inc | ||