Date: Fri, 23 Mar 2012 10:33:25 +0000 (UTC) From: Sergey Kandaurov <pluknet@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r233347 - head/share/man/man9 Message-ID: <201203231033.q2NAXPUr070136@svn.freebsd.org>
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Author: pluknet Date: Fri Mar 23 10:33:24 2012 New Revision: 233347 URL: http://svn.freebsd.org/changeset/base/233347 Log: Clean up from the old kern.polling. Reviewed by: attilio MFC after: 1 week Modified: head/share/man/man9/ifnet.9 Modified: head/share/man/man9/ifnet.9 ============================================================================== --- head/share/man/man9/ifnet.9 Fri Mar 23 10:12:35 2012 (r233346) +++ head/share/man/man9/ifnet.9 Fri Mar 23 10:33:24 2012 (r233347) @@ -798,20 +798,7 @@ The capability of a network interface to .Xr polling 4 mode involves several flags in different global variables and per-interface fields. -First, there is a system-wide -.Xr sysctl 8 -master switch named -.Va kern.polling.enable , -which can toggle -.Xr polling 4 -globally. -If that variable is set to non-zero, -.Xr polling 4 -will be used on those devices where it is enabled individually. -Otherwise, -.Xr polling 4 -will not be used in the system. -Second, the capability flag +The capability flag .Dv IFCAP_POLLING set in interface's .Va if_capabilities @@ -821,20 +808,19 @@ on the particular interface. If set in .Va if_capabilities , the same flag can be marked or cleared in the interface's -.Va if_capenable , +.Va if_capenable +within +.Fn ifioctl , thus initiating switch of the interface to .Xr polling 4 mode or interrupt mode, respectively. -The actual mode change will occur at an implementation-specific moment -in the future, e.g., during the next interrupt or -.Xr polling 4 -cycle. -And finally, if the mode transition has been successful, the flag -.Dv IFF_POLLING -is marked or cleared in the interface's -.Va if_flags -to indicate the current mode of the interface. +The actual mode change is managed by the driver-specific +.Fn if_ioctl +routine. +The +.Xr polling +handler returns the number of packets processed. .Ss The Vt if_data Ss Structure The .Vt if_data @@ -880,18 +866,6 @@ to attempt to ensure that there is alway sufficient space to prepend a link-layer header without allocating an additional .Vt mbuf . -.\" (See -.\" .Xr mbuf 9 . ) -.\" .It Va ifi_recvquota -.\" .Pq Vt u_char -.\" Number of packets the interface is permitted to receive at one time -.\" when in polled mode. -.\" .It Va ifi_xmitquota -.\" .Pq Vt u_char -.\" Number of packets the interface is permitted to queue for transmission -.\" at one time when in polled mode. -.\" There is some controversy over -.\" whether such a restriction makes any sense at all. .It Va ifi_datalen .Pq Vt u_char Length of the @@ -972,18 +946,6 @@ Number of packets dropped on input. Rarely implemented. .It Va ifi_noproto Number of packets received for unknown network-layer protocol. -.\" .It Va ifi_recvtiming -.\" Amount of time, in microseconds, spent to receive an average packet on -.\" this interface. -.\" See the -.\" .Sx Polling -.\" section, below. -.\" .It Va ifi_xmittiming -.\" Amount of time, in microseconds, spent to service a transmit-complete -.\" interrupt on this interface. -.\" See the -.\" .Sx Polling -.\" section, below. .It Va ifi_lastchange .Pq Vt "struct timeval" The time of the last administrative change to the interface (as required
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