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small documentation update

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This commit is contained in:
Luigi Rizzo 2015-07-19 17:54:42 +00:00
parent 70888b7ed5
commit 85fe4e7c6b
1 changed files with 4 additions and 3 deletions
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7
sys/dev/netmap/netmap_kern.h
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@ -503,8 +503,9 @@ struct netmap_adapter {
* that cannot be changed
*/
#define NAF_NATIVE 16 /* the adapter is native.
* Virtual ports (vale, pipe, monitor...)
* should never use this flag.
* Virtual ports (non persistent vale ports,
* pipes, monitors...) should never use
* this flag.
*/
#define NAF_NETMAP_ON 32 /* netmap is active (either native or
* emulated). Where possible (e.g. FreeBSD)
@ -1483,7 +1484,7 @@ PNMB(struct netmap_adapter *na, struct netmap_slot *slot, uint64_t *pp)
*
* np_refs counts the number of references to the structure: one for the fd,
* plus (on FreeBSD) one for each active mmap which we track ourselves
* (they are not unmapped on close(), unlike linux).
* (linux automatically tracks them, but FreeBSD does not).
* np_refs is protected by NMG_LOCK.
*
* Read access to the structure is lock free, because ni_nifp once set