| netmap_kern.h (285359) | netmap_kern.h (285695) |
|---|---|
| 1/* 2 * Copyright (C) 2011-2014 Matteo Landi, Luigi Rizzo. All rights reserved. 3 * Copyright (C) 2013-2014 Universita` di Pisa. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27/* | 1/* 2 * Copyright (C) 2011-2014 Matteo Landi, Luigi Rizzo. All rights reserved. 3 * Copyright (C) 2013-2014 Universita` di Pisa. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27/* |
| 28 * $FreeBSD: head/sys/dev/netmap/netmap_kern.h 285359 2015-07-10 16:05:24Z luigi $ | 28 * $FreeBSD: head/sys/dev/netmap/netmap_kern.h 285695 2015-07-19 17:54:42Z luigi $ |
| 29 * 30 * The header contains the definitions of constants and function 31 * prototypes used only in kernelspace. 32 */ 33 34#ifndef _NET_NETMAP_KERN_H_ 35#define _NET_NETMAP_KERN_H_ 36 --- 461 unchanged lines hidden (view full) --- 498#define NAF_BDG_MAYSLEEP 4 /* the bridge is allowed to sleep when 499 * forwarding packets coming from this 500 * interface 501 */ 502#define NAF_MEM_OWNER 8 /* the adapter uses its own memory area 503 * that cannot be changed 504 */ 505#define NAF_NATIVE 16 /* the adapter is native. | 29 * 30 * The header contains the definitions of constants and function 31 * prototypes used only in kernelspace. 32 */ 33 34#ifndef _NET_NETMAP_KERN_H_ 35#define _NET_NETMAP_KERN_H_ 36 --- 461 unchanged lines hidden (view full) --- 498#define NAF_BDG_MAYSLEEP 4 /* the bridge is allowed to sleep when 499 * forwarding packets coming from this 500 * interface 501 */ 502#define NAF_MEM_OWNER 8 /* the adapter uses its own memory area 503 * that cannot be changed 504 */ 505#define NAF_NATIVE 16 /* the adapter is native. |
| 506 * Virtual ports (vale, pipe, monitor...) 507 * should never use this flag. | 506 * Virtual ports (non persistent vale ports, 507 * pipes, monitors...) should never use 508 * this flag. |
| 508 */ 509#define NAF_NETMAP_ON 32 /* netmap is active (either native or 510 * emulated). Where possible (e.g. FreeBSD) 511 * IFCAP_NETMAP also mirrors this flag. 512 */ 513#define NAF_HOST_RINGS 64 /* the adapter supports the host rings */ 514#define NAF_FORCE_NATIVE 128 /* the adapter is always NATIVE */ 515#define NAF_BUSY (1U<<31) /* the adapter is used internally and --- 962 unchanged lines hidden (view full) --- 1478/* 1479 * Structure associated to each netmap file descriptor. 1480 * It is created on open and left unbound (np_nifp == NULL). 1481 * A successful NIOCREGIF will set np_nifp and the first few fields; 1482 * this is protected by a global lock (NMG_LOCK) due to low contention. 1483 * 1484 * np_refs counts the number of references to the structure: one for the fd, 1485 * plus (on FreeBSD) one for each active mmap which we track ourselves | 509 */ 510#define NAF_NETMAP_ON 32 /* netmap is active (either native or 511 * emulated). Where possible (e.g. FreeBSD) 512 * IFCAP_NETMAP also mirrors this flag. 513 */ 514#define NAF_HOST_RINGS 64 /* the adapter supports the host rings */ 515#define NAF_FORCE_NATIVE 128 /* the adapter is always NATIVE */ 516#define NAF_BUSY (1U<<31) /* the adapter is used internally and --- 962 unchanged lines hidden (view full) --- 1479/* 1480 * Structure associated to each netmap file descriptor. 1481 * It is created on open and left unbound (np_nifp == NULL). 1482 * A successful NIOCREGIF will set np_nifp and the first few fields; 1483 * this is protected by a global lock (NMG_LOCK) due to low contention. 1484 * 1485 * np_refs counts the number of references to the structure: one for the fd, 1486 * plus (on FreeBSD) one for each active mmap which we track ourselves |
| 1486 * (they are not unmapped on close(), unlike linux). | 1487 * (linux automatically tracks them, but FreeBSD does not). |
| 1487 * np_refs is protected by NMG_LOCK. 1488 * 1489 * Read access to the structure is lock free, because ni_nifp once set 1490 * can only go to 0 when nobody is using the entry anymore. Readers 1491 * must check that np_nifp != NULL before using the other fields. 1492 */ 1493struct netmap_priv_d { 1494 struct netmap_if * volatile np_nifp; /* netmap if descriptor. */ --- 180 unchanged lines hidden --- | 1488 * np_refs is protected by NMG_LOCK. 1489 * 1490 * Read access to the structure is lock free, because ni_nifp once set 1491 * can only go to 0 when nobody is using the entry anymore. Readers 1492 * must check that np_nifp != NULL before using the other fields. 1493 */ 1494struct netmap_priv_d { 1495 struct netmap_if * volatile np_nifp; /* netmap if descriptor. */ --- 180 unchanged lines hidden --- |