diff options
Diffstat (limited to 'arch/arm/mvp/pvtcpkm/pvtcp_off_linux.h')
| -rw-r--r-- | arch/arm/mvp/pvtcpkm/pvtcp_off_linux.h | 226 |
1 files changed, 0 insertions, 226 deletions
diff --git a/arch/arm/mvp/pvtcpkm/pvtcp_off_linux.h b/arch/arm/mvp/pvtcpkm/pvtcp_off_linux.h deleted file mode 100644 index 34992da..0000000 --- a/arch/arm/mvp/pvtcpkm/pvtcp_off_linux.h +++ /dev/null @@ -1,226 +0,0 @@ -/* - * Linux 2.6.32 and later Kernel module for VMware MVP PVTCP Server - * - * Copyright (C) 2010-2012 VMware, Inc. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; see the file COPYING. If not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ -#line 5 - -/** - * @file - * - * @brief Linux Offload definitions. - * This file is only meant to be included via pvtcp_off.h. - */ - -#ifndef _PVTCP_OFF_LINUX_H_ -#define _PVTCP_OFF_LINUX_H_ - -#include <linux/socket.h> -#include <net/sock.h> -#include <net/tcp_states.h> -#include <net/tcp.h> -#include <linux/in.h> -#include <linux/in6.h> -#include <linux/skbuff.h> -#include <linux/random.h> -#include <linux/fs.h> -#include <linux/cred.h> - - -typedef struct PvtcpSock { - struct sock *sk; - PVTCP_SOCK_COMMON_FIELDS; - PVTCP_OFF_SOCK_COMMON_FIELDS; - void (*destruct)(struct sock *sk); - void (*stateChange)(struct sock *sk); - void (*dataReady)(struct sock *sk, int bytes); - void (*writeSpace)(struct sock *sk); - void (*errorReport)(struct sock *sk); -} PvtcpSock; - - -typedef enum PvtcpSockNamespace { - PVTCP_SOCK_NAMESPACE_INITIAL, - PVTCP_SOCK_NAMESPACE_CHANNEL -} PvtcpSockNamespace; - - -/* Number of large datagram allocations. */ -extern unsigned long long pvtcpOffDgramAllocations; - -/* Inet4 loopback addresses. */ -extern unsigned int pvtcpLoopbackOffAddr; - -/* Get the 'struct sock' from a PvtcpSock. */ -#define SkFromPvsk(pvsk) ((pvsk)->sk) - -/* Get the PvtcpSock from a 'struct sock'. */ -#define PvskFromSk(sk) ((PvtcpSock *)(sk)->sk_user_data) - -int -PvtcpTestAndBindLoopbackInet4(PvtcpSock *pvsk, - unsigned int *addr, - unsigned short port); -int -PvtcpTestAndBindLoopbackInet6(PvtcpSock *pvsk, - unsigned long long *addr0, - unsigned long long *addr1, - unsigned short port); - -void PvtcpResetLoopbackInet4(PvtcpSock *pvsk, unsigned int *addr); -void PvtcpResetLoopbackInet6(PvtcpSock *pvsk, struct in6_addr *in6); - -void PvtcpFlowAIO(PvtcpSock *pvsk, int eof); -void PvtcpOutputAIO(PvtcpSock *pvsk); -int PvtcpInputAIO(PvtcpSock *pvsk, void *perCpuBuf); - - -/** - * @brief Switches a socket to the channel, or the initial name space. - * @param pvsk socket to switch. - * @param ns which namespace to switch to. - */ - -static inline void -PvtcpSwitchSock(PvtcpSock *pvsk, - PvtcpSockNamespace ns) -{ -#if defined(CONFIG_NET_NS) && !defined(PVTCP_NET_NS_DISABLE) - struct sock *sk; - struct net *prevNet; - - if (!pvsk) { - return; - } - sk = SkFromPvsk(pvsk); - if (!sk) { - /* If this is a phony, create fail reporting pvsk, just return. */ - - return; - } - - prevNet = sock_net(sk); - switch (ns) { - case PVTCP_SOCK_NAMESPACE_INITIAL: - sock_net_set(sk, get_net(&init_net)); - break; - case PVTCP_SOCK_NAMESPACE_CHANNEL: - sock_net_set(sk, get_net(pvsk->state->namespace)); - break; - } - put_net(prevNet); -#endif -} - - -/** - * @brief Tests whether a socket has an explicit namespace. - * @param pvsk socket to test. - * @return 1 if the socket has a namespace, 0 otherwise. - */ - -static inline int -PvtcpHasSockNamespace(PvtcpSock *pvsk) -{ -#if defined(CONFIG_NET_NS) && !defined(PVTCP_NET_NS_DISABLE) - struct sock *sk; - int rc = 0; - - if (!pvsk) { - return rc; - } - sk = SkFromPvsk(pvsk); - if (!sk) { - /* If this is a phony, create fail reporting pvsk, just return 0. */ - - return rc; - } - - rc = (sock_net(sk) != &init_net); - return rc; -#else - return 0; -#endif -} - - -/** - * @brief Retains the pvsock's underlying socket. - * @param pvsk socket to retain. - */ - -static inline void -PvtcpHoldSock(PvtcpSock *pvsk) -{ - struct sock *sk = SkFromPvsk(pvsk); - - if (likely(sk)) { - sock_hold(sk); - } -} - - -/** - * @brief Releases a hold on the pvsock's underlying socket. If the underlying - * socket is NULL, this is an error socket and we deallocate it. - * @param pvsk socket to release hold on. - */ - -static inline void -PvtcpPutSock(PvtcpSock *pvsk) -{ - struct sock *sk = SkFromPvsk(pvsk); - - if (likely(sk)) { - sock_put(sk); - } else { - /* - * This is an error socket, which does _not_ have an underlying socket. - * We simply need to free it. - */ - - CommOS_Kfree(pvsk); - } -} - - -/** - * @brief Schedules an offload socket for AIO. - * @param pvsk socket to schedule. - * @sideeffect the socket will be processed by AIO threads. - */ - -static inline void -PvtcpSchedSock(PvtcpSock *pvsk) -{ - /* - * We must hold the socket before we enqueue it for AIO, such that it may - * not be released while in the workqueue. If CommSvc_ScheduleAIOWork() - * returned non-zero, it means the socket had already been enqueued. In - * that case, we release the hold. Otherwise, the hold is released by the - * AIO function (PvtcpProcessAIO()). - * Note that error pv sockets may only originate from synchronized RPCs, - * or to be more precise, from PvtcpCreateOp(), and not from IO processing; - * this means that they cannot be attempted to be enqueued more than once. - */ - - PvtcpHoldSock(pvsk); - if (CommSvc_ScheduleAIOWork(&pvsk->work)) { - PvtcpPutSock(pvsk); - } -} - -#endif // _PVTCP_OFF_LINUX_H_ |