N-sim Emulation and simulation of Wireless Sensor Networks    Home    Project Page    Download    CVS    Installation    Configuration    Plug-ins  Hosted by

/home/brennan/n-sim/OrbisQuartus/server/xen/backend/sdev.h Go to the documentation of this file. /* * Copyright (c) 2002-2005, K A Fraser * * Copyright 2006. Los Alamos National Security, LLC. This material * was produced under U.S. Government contract DE-AC52-06NA25396 for * Los Alamos National Laboratory (LANL), which is operated by Los * Alamos National Security, LLC, for the Department of Energy. The * U.S. Government has rights to use, reproduce, and distribute this * software. NEITHER THE GOVERNMENT NOR LOS ALAMOS NATIONAL SECURITY, * LLC, MAKES ANY WARRANTY, EXPRESS OR IMPLIED, OR ASSUMES ANY LEGAL * LIABILITY FOR THE USE OF THIS SOFTWARE. If software is modified to * produce derivative works, such modified software should be clearly * marked, so as not to confuse it with the version available from LANL. * * Additionally, this program is free software; you can redistribute it * and/or modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of the * License, or (at your option) any later version. Accordingly, this * program is distributed in the hope 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. ****************************** * * 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; or, when distributed * separately from the Linux kernel or incorporated into other * software packages, subject to the following license: * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this source file (the "Software"), to deal in the Software without * restriction, including without limitation the rights to use, copy, modify, * merge, publish, distribute, sublicense, and/or sell copies of the Software, * and to permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS * IN THE SOFTWARE. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef __SENSOR__BACKEND__COMMON_H__ #define __SENSOR__BACKEND__COMMON_H__ //#include <linux/autoconf.h> #include <linux/version.h> #include <linux/module.h> #include <linux/interrupt.h> #include <linux/slab.h> #include <linux/ip.h> #include <linux/in.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <asm/io.h> #include <asm/pgalloc.h> #include <xen/evtchn.h> #include <xen/interface/io/netif.h> #include <xen/interface/grant_table.h> #include <xen/gnttab.h> #include <xen/driver_util.h> #define DPRINTK(_f, _a...) pr_debug("(file=%s, line=%d) " _f, \ __FILE__ , __LINE__ , ## _a ) typedef struct sdev_st { /* Unique identifier for this interface. */ domid_t domid; unsigned int handle; u8 fe_dev_addr[6]; /* Physical parameters of the comms window. */ grant_handle_t tx_shmem_handle; grant_ref_t tx_shmem_ref; grant_handle_t rx_shmem_handle; grant_ref_t rx_shmem_ref; unsigned int evtchn; unsigned int irq; /* The shared rings and indexes. */ netif_tx_back_ring_t tx; netif_rx_back_ring_t rx; struct vm_struct *tx_comms_area; struct vm_struct *rx_comms_area; /* Allow sdev_be_start_xmit() to peek ahead in the rx request ring. */ RING_IDX rx_req_cons_peek; /* Transmit shaping: allow 'credit_bytes' every 'credit_usec'. */ unsigned long credit_bytes; unsigned long credit_usec; unsigned long remaining_credit; struct timer_list credit_timeout; /* Miscellaneous private stuff. */ enum { DISCONNECTED, DISCONNECTING, CONNECTED } status; int active; struct list_head list; /* scheduling list */ atomic_t refcnt; struct net_device *dev; struct net_device_stats stats; struct work_struct free_work; } sdev_t; #define NET_TX_RING_SIZE __RING_SIZE((netif_tx_sring_t *)0, PAGE_SIZE) #define NET_RX_RING_SIZE __RING_SIZE((netif_rx_sring_t *)0, PAGE_SIZE) void sdev_creditlimit(sdev_t *sdev); void sdev_disconnect(sdev_t *sdev); sdev_t *alloc_sdev(domid_t domid, unsigned int handle, u8 be_mac[ETH_ALEN]); void free_sdev(sdev_t *sdev); int sdev_map(sdev_t *sdev, unsigned long tx_ring_ref, unsigned long rx_ring_ref, unsigned int evtchn); #define sdev_get(_b) (atomic_inc(&(_b)->refcnt)) #define sdev_put(_b) \ do { \ if ( atomic_dec_and_test(&(_b)->refcnt) ) \ free_sdev(_b); \ } while (0) void sdev_xenbus_init(void); void sdev_xenbus_exit(void); void sdev_schedule_work(sdev_t *sdev); void sdev_deschedule_work(sdev_t *sdev); int sdev_be_start_xmit(struct sk_buff *skb, struct net_device *dev); struct net_device_stats *sdev_be_get_stats(struct net_device *dev); irqreturn_t sdev_be_int(int irq, void *dev_id, struct pt_regs *regs); #endif /* __SENSOR__BACKEND__COMMON_H__ */

© 2007, Los Alamos National Security, LLC.