-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * Copyright (C) 2001 Cluster File Systems, Inc. <braam@clusterfs.com>
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of Lustre, http://www.lustre.org.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License 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 version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
*
- * Lustre 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
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
*
- * Basic library routines.
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*
+ * lnet/klnds/qswlnd/qswlnd.h
+ *
+ * Basic library routines.
*/
#ifndef _QSWNAL_H
#define _QSWNAL_H
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
#include <qsnet/kernel.h>
#undef printf /* nasty QSW #define */
-#ifndef AUTOCONF_INCLUDED
-#include <linux/config.h>
-#endif
#include <linux/module.h>
#include <elan/epcomms.h>
#include <linux/string.h>
#include <linux/stat.h>
#include <linux/errno.h>
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-#include <linux/locks.h> /* wait_on_buffer */
-#else
#include <linux/buffer_head.h> /* wait_on_buffer */
-#endif
#include <linux/unistd.h>
#include <net/sock.h>
#include <linux/uio.h>
#include <linux/stat.h>
#include <linux/list.h>
#include <linux/sysctl.h>
-#include <asm/segment.h>
#define DEBUG_SUBSYSTEM S_LND
-#include <libcfs/kp30.h>
+#include <libcfs/libcfs.h>
#include <lnet/lnet.h>
#include <lnet/lib-lnet.h>
+#include <lnet/lnet-sysctl.h>
/* fixed constants */
#define KQSW_SMALLMSG (4<<10) /* small/large ep receiver breakpoint */
typedef struct kqswnal_rx
{
- struct list_head krx_list; /* enqueue -> thread */
- struct kqswnal_rx *krx_alloclist; /* stack in kqn_rxds */
- EP_RCVR *krx_eprx; /* port to post receives to */
- EP_RXD *krx_rxd; /* receive descriptor (for repost) */
- EP_NMD krx_elanbuffer; /* contiguous Elan buffer */
- int krx_npages; /* # pages in receive buffer */
- int krx_nob; /* Number Of Bytes received into buffer */
- int krx_rpc_reply_needed:1; /* peer waiting for EKC RPC reply */
- int krx_raw_lnet_hdr:1; /* msg is a raw lnet hdr (portals compatible) */
- int krx_state; /* what this RX is doing */
- atomic_t krx_refcount; /* how to tell when rpc is done */
+ cfs_list_t krx_list; /* enqueue -> thread */
+ struct kqswnal_rx *krx_alloclist;/* stack in kqn_rxds */
+ EP_RCVR *krx_eprx; /* port to post receives to */
+ EP_RXD *krx_rxd; /* receive descriptor (for repost) */
+ EP_NMD krx_elanbuffer;/* contiguous Elan buffer */
+ int krx_npages; /* # pages in receive buffer */
+ int krx_nob; /* Number Of Bytes received into buffer */
+ int krx_rpc_reply_needed:1; /* peer waiting for EKC RPC reply */
+ int krx_state; /* what this RX is doing */
+ cfs_atomic_t krx_refcount; /* how to tell when rpc is done */
#if KQSW_CKSUM
- __u32 krx_cksum; /* checksum */
+ __u32 krx_cksum; /* checksum */
#endif
- kqswnal_rpc_reply_t krx_rpc_reply; /* rpc reply status block */
- lnet_kiov_t krx_kiov[KQSW_NRXMSGPAGES_LARGE]; /* buffer frags */
+ kqswnal_rpc_reply_t krx_rpc_reply; /* rpc reply status block */
+ lnet_kiov_t krx_kiov[KQSW_NRXMSGPAGES_LARGE];/* buffer frags */
} kqswnal_rx_t;
#define KRX_POSTED 1 /* receiving */
typedef struct kqswnal_tx
{
- struct list_head ktx_list; /* enqueue idle/active */
- struct list_head ktx_schedlist; /* enqueue on scheduler */
- struct kqswnal_tx *ktx_alloclist; /* stack in kqn_txds */
- unsigned int ktx_state:7; /* What I'm doing */
- unsigned int ktx_firsttmpfrag:1; /* ktx_frags[0] is in my ebuffer ? 0 : 1 */
- __u32 ktx_basepage; /* page offset in reserved elan tx vaddrs for mapping pages */
- int ktx_npages; /* pages reserved for mapping messages */
- int ktx_nmappedpages; /* # pages mapped for current message */
- int ktx_port; /* destination ep port */
- lnet_nid_t ktx_nid; /* destination node */
- void *ktx_args[3]; /* completion passthru */
- char *ktx_buffer; /* pre-allocated contiguous buffer for hdr + small payloads */
- cfs_time_t ktx_launchtime; /* when (in jiffies) the transmit
- * was launched */
- int ktx_status; /* completion status */
+ cfs_list_t ktx_list; /* enqueue idle/active */
+ cfs_list_t ktx_schedlist; /* enqueue on scheduler */
+ struct kqswnal_tx *ktx_alloclist; /* stack in kqn_txds */
+ unsigned int ktx_state:7; /* What I'm doing */
+ unsigned int ktx_firsttmpfrag:1; /* ktx_frags[0] is in my ebuffer ? 0 : 1 */
+ __u32 ktx_basepage; /* page offset in reserved elan tx vaddrs for mapping pages */
+ int ktx_npages; /* pages reserved for mapping messages */
+ int ktx_nmappedpages; /* # pages mapped for current message */
+ int ktx_port; /* destination ep port */
+ lnet_nid_t ktx_nid; /* destination node */
+ void *ktx_args[3]; /* completion passthru */
+ char *ktx_buffer; /* pre-allocated contiguous buffer for hdr + small payloads */
+ cfs_time_t ktx_launchtime; /* when (in jiffies) the
+ * transmit was launched */
+ int ktx_status; /* completion status */
#if KQSW_CKSUM
- __u32 ktx_cksum; /* optimized GET payload checksum */
+ __u32 ktx_cksum; /* optimized GET payload checksum */
#endif
/* debug/info fields */
- pid_t ktx_launcher; /* pid of launching process */
+ pid_t ktx_launcher; /* pid of launching process */
- int ktx_nfrag; /* # message frags */
- int ktx_rail; /* preferred rail */
- EP_NMD ktx_ebuffer; /* elan mapping of ktx_buffer */
- EP_NMD ktx_frags[EP_MAXFRAG];/* elan mapping of msg frags */
+ int ktx_nfrag; /* # message frags */
+ int ktx_rail; /* preferred rail */
+ EP_NMD ktx_ebuffer; /* elan mapping of ktx_buffer */
+ EP_NMD ktx_frags[EP_MAXFRAG];/* elan mapping of msg frags */
} kqswnal_tx_t;
#define KTX_IDLE 0 /* on kqn_idletxds */
typedef struct
{
- char kqn_init; /* what's been initialised */
- char kqn_shuttingdown; /* I'm trying to shut down */
- atomic_t kqn_nthreads; /* # threads running */
- lnet_ni_t *kqn_ni; /* _the_ instance of me */
-
- kqswnal_rx_t *kqn_rxds; /* stack of all the receive descriptors */
- kqswnal_tx_t *kqn_txds; /* stack of all the transmit descriptors */
-
- struct list_head kqn_idletxds; /* transmit descriptors free to use */
- struct list_head kqn_activetxds; /* transmit descriptors being used */
- spinlock_t kqn_idletxd_lock; /* serialise idle txd access */
- atomic_t kqn_pending_txs; /* # transmits being prepped */
-
- spinlock_t kqn_sched_lock; /* serialise packet schedulers */
- wait_queue_head_t kqn_sched_waitq; /* scheduler blocks here */
-
- struct list_head kqn_readyrxds; /* rxds full of data */
- struct list_head kqn_donetxds; /* completed transmits */
- struct list_head kqn_delayedtxds; /* delayed transmits */
-
- EP_SYS *kqn_ep; /* elan system */
- EP_NMH *kqn_ep_tx_nmh; /* elan reserved tx vaddrs */
- EP_NMH *kqn_ep_rx_nmh; /* elan reserved rx vaddrs */
- EP_XMTR *kqn_eptx; /* elan transmitter */
- EP_RCVR *kqn_eprx_small; /* elan receiver (small messages) */
- EP_RCVR *kqn_eprx_large; /* elan receiver (large messages) */
-
- int kqn_nnodes; /* this cluster's size */
- int kqn_elanid; /* this nodes's elan ID */
-
- EP_STATUSBLK kqn_rpc_success; /* preset RPC reply status blocks */
- EP_STATUSBLK kqn_rpc_failed;
- EP_STATUSBLK kqn_rpc_version; /* reply to future version query */
- EP_STATUSBLK kqn_rpc_magic; /* reply to future version query */
+ char kqn_init; /* what's been initialised */
+ char kqn_shuttingdown;/* I'm trying to shut down */
+ cfs_atomic_t kqn_nthreads; /* # threads running */
+ lnet_ni_t *kqn_ni; /* _the_ instance of me */
+
+ kqswnal_rx_t *kqn_rxds; /* stack of all the receive descriptors */
+ kqswnal_tx_t *kqn_txds; /* stack of all the transmit descriptors */
+
+ cfs_list_t kqn_idletxds; /* transmit descriptors free to use */
+ cfs_list_t kqn_activetxds; /* transmit descriptors being used */
+ cfs_spinlock_t kqn_idletxd_lock; /* serialise idle txd access */
+ cfs_atomic_t kqn_pending_txs;/* # transmits being prepped */
+
+ cfs_spinlock_t kqn_sched_lock; /* serialise packet schedulers */
+ cfs_waitq_t kqn_sched_waitq;/* scheduler blocks here */
+
+ cfs_list_t kqn_readyrxds; /* rxds full of data */
+ cfs_list_t kqn_donetxds; /* completed transmits */
+ cfs_list_t kqn_delayedtxds;/* delayed transmits */
+
+ EP_SYS *kqn_ep; /* elan system */
+ EP_NMH *kqn_ep_tx_nmh; /* elan reserved tx vaddrs */
+ EP_NMH *kqn_ep_rx_nmh; /* elan reserved rx vaddrs */
+ EP_XMTR *kqn_eptx; /* elan transmitter */
+ EP_RCVR *kqn_eprx_small; /* elan receiver (small messages) */
+ EP_RCVR *kqn_eprx_large; /* elan receiver (large messages) */
+
+ int kqn_nnodes; /* this cluster's size */
+ int kqn_elanid; /* this nodes's elan ID */
+
+ EP_STATUSBLK kqn_rpc_success;/* preset RPC reply status blocks */
+ EP_STATUSBLK kqn_rpc_failed;
+ EP_STATUSBLK kqn_rpc_version;/* reply to future version query */
+ EP_STATUSBLK kqn_rpc_magic; /* reply to future version query */
} kqswnal_data_t;
/* kqn_init state */
static inline void kqswnal_rx_decref (kqswnal_rx_t *krx)
{
- LASSERT (atomic_read (&krx->krx_refcount) > 0);
- if (atomic_dec_and_test (&krx->krx_refcount))
+ LASSERT (cfs_atomic_read (&krx->krx_refcount) > 0);
+ if (cfs_atomic_dec_and_test (&krx->krx_refcount))
kqswnal_rx_done(krx);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff