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diff --git a/drivers/infiniband/hw/ipath/ipath_common.h b/drivers/infiniband/hw/ipath/ipath_common.h
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+++ b/drivers/infiniband/hw/ipath/ipath_common.h
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+/*
+ * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * 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.
+ */
+
+#ifndef _IPATH_COMMON_H
+#define _IPATH_COMMON_H
+
+/*
+ * This file contains defines, structures, etc. that are used
+ * to communicate between kernel and user code.
+ */
+
+/* This is the IEEE-assigned OUI for PathScale, Inc. */
+#define IPATH_SRC_OUI_1 0x00
+#define IPATH_SRC_OUI_2 0x11
+#define IPATH_SRC_OUI_3 0x75
+
+/* version of protocol header (known to chip also). In the long run,
+ * we should be able to generate and accept a range of version numbers;
+ * for now we only accept one, and it's compiled in.
+ */
+#define IPS_PROTO_VERSION 2
+
+/*
+ * These are compile time constants that you may want to enable or disable
+ * if you are trying to debug problems with code or performance.
+ * IPATH_VERBOSE_TRACING define as 1 if you want additional tracing in
+ * fastpath code
+ * IPATH_TRACE_REGWRITES define as 1 if you want register writes to be
+ * traced in faspath code
+ * _IPATH_TRACING define as 0 if you want to remove all tracing in a
+ * compilation unit
+ * _IPATH_DEBUGGING define as 0 if you want to remove debug prints
+ */
+
+/*
+ * The value in the BTH QP field that InfiniPath uses to differentiate
+ * an infinipath protocol IB packet vs standard IB transport
+ */
+#define IPATH_KD_QP 0x656b79
+
+/*
+ * valid states passed to ipath_set_linkstate() user call
+ */
+#define IPATH_IB_LINKDOWN 0
+#define IPATH_IB_LINKARM 1
+#define IPATH_IB_LINKACTIVE 2
+#define IPATH_IB_LINKINIT 3
+#define IPATH_IB_LINKDOWN_SLEEP 4
+#define IPATH_IB_LINKDOWN_DISABLE 5
+
+/*
+ * stats maintained by the driver. For now, at least, this is global
+ * to all minor devices.
+ */
+struct infinipath_stats {
+ /* number of interrupts taken */
+ __u64 sps_ints;
+ /* number of interrupts for errors */
+ __u64 sps_errints;
+ /* number of errors from chip (not incl. packet errors or CRC) */
+ __u64 sps_errs;
+ /* number of packet errors from chip other than CRC */
+ __u64 sps_pkterrs;
+ /* number of packets with CRC errors (ICRC and VCRC) */
+ __u64 sps_crcerrs;
+ /* number of hardware errors reported (parity, etc.) */
+ __u64 sps_hwerrs;
+ /* number of times IB link changed state unexpectedly */
+ __u64 sps_iblink;
+ /* no longer used; left for compatibility */
+ __u64 sps_unused3;
+ /* number of kernel (port0) packets received */
+ __u64 sps_port0pkts;
+ /* number of "ethernet" packets sent by driver */
+ __u64 sps_ether_spkts;
+ /* number of "ethernet" packets received by driver */
+ __u64 sps_ether_rpkts;
+ /* number of SMA packets sent by driver */
+ __u64 sps_sma_spkts;
+ /* number of SMA packets received by driver */
+ __u64 sps_sma_rpkts;
+ /* number of times all ports rcvhdrq was full and packet dropped */
+ __u64 sps_hdrqfull;
+ /* number of times all ports egrtid was full and packet dropped */
+ __u64 sps_etidfull;
+ /*
+ * number of times we tried to send from driver, but no pio buffers
+ * avail
+ */
+ __u64 sps_nopiobufs;
+ /* number of ports currently open */
+ __u64 sps_ports;
+ /* list of pkeys (other than default) accepted (0 means not set) */
+ __u16 sps_pkeys[4];
+ /* lids for up to 4 infinipaths, indexed by infinipath # */
+ __u16 sps_lid[4];
+ /* number of user ports per chip (not IB ports) */
+ __u32 sps_nports;
+ /* not our interrupt, or already handled */
+ __u32 sps_nullintr;
+ /* max number of packets handled per receive call */
+ __u32 sps_maxpkts_call;
+ /* avg number of packets handled per receive call */
+ __u32 sps_avgpkts_call;
+ /* total number of pages locked */
+ __u64 sps_pagelocks;
+ /* total number of pages unlocked */
+ __u64 sps_pageunlocks;
+ /*
+ * Number of packets dropped in kernel other than errors (ether
+ * packets if ipath not configured, sma/mad, etc.)
+ */
+ __u64 sps_krdrops;
+ /* mlids for up to 4 infinipaths, indexed by infinipath # */
+ __u16 sps_mlid[4];
+ /* pad for future growth */
+ __u64 __sps_pad[45];
+};
+
+/*
+ * These are the status bits readable (in ascii form, 64bit value)
+ * from the "status" sysfs file.
+ */
+#define IPATH_STATUS_INITTED 0x1 /* basic initialization done */
+#define IPATH_STATUS_DISABLED 0x2 /* hardware disabled */
+/* Device has been disabled via admin request */
+#define IPATH_STATUS_ADMIN_DISABLED 0x4
+#define IPATH_STATUS_OIB_SMA 0x8 /* ipath_mad kernel SMA running */
+#define IPATH_STATUS_SMA 0x10 /* user SMA running */
+/* Chip has been found and initted */
+#define IPATH_STATUS_CHIP_PRESENT 0x20
+/* IB link is at ACTIVE, usable for data traffic */
+#define IPATH_STATUS_IB_READY 0x40
+/* link is configured, LID, MTU, etc. have been set */
+#define IPATH_STATUS_IB_CONF 0x80
+/* no link established, probably no cable */
+#define IPATH_STATUS_IB_NOCABLE 0x100
+/* A Fatal hardware error has occurred. */
+#define IPATH_STATUS_HWERROR 0x200
+
+/*
+ * The list of usermode accessible registers. Also see Reg_* later in file.
+ */
+typedef enum _ipath_ureg {
+ /* (RO) DMA RcvHdr to be used next. */
+ ur_rcvhdrtail = 0,
+ /* (RW) RcvHdr entry to be processed next by host. */
+ ur_rcvhdrhead = 1,
+ /* (RO) Index of next Eager index to use. */
+ ur_rcvegrindextail = 2,
+ /* (RW) Eager TID to be processed next */
+ ur_rcvegrindexhead = 3,
+ /* For internal use only; max register number. */
+ _IPATH_UregMax
+} ipath_ureg;
+
+/* bit values for spi_runtime_flags */
+#define IPATH_RUNTIME_HT 0x1
+#define IPATH_RUNTIME_PCIE 0x2
+#define IPATH_RUNTIME_FORCE_WC_ORDER 0x4
+#define IPATH_RUNTIME_RCVHDR_COPY 0x8
+
+/*
+ * This structure is returned by ipath_userinit() immediately after
+ * open to get implementation-specific info, and info specific to this
+ * instance.
+ *
+ * This struct must have explict pad fields where type sizes
+ * may result in different alignments between 32 and 64 bit
+ * programs, since the 64 bit * bit kernel requires the user code
+ * to have matching offsets
+ */
+struct ipath_base_info {
+ /* version of hardware, for feature checking. */
+ __u32 spi_hw_version;
+ /* version of software, for feature checking. */
+ __u32 spi_sw_version;
+ /* InfiniPath port assigned, goes into sent packets */
+ __u32 spi_port;
+ /*
+ * IB MTU, packets IB data must be less than this.
+ * The MTU is in bytes, and will be a multiple of 4 bytes.
+ */
+ __u32 spi_mtu;
+ /*
+ * Size of a PIO buffer. Any given packet's total size must be less
+ * than this (in words). Included is the starting control word, so
+ * if 513 is returned, then total pkt size is 512 words or less.
+ */
+ __u32 spi_piosize;
+ /* size of the TID cache in infinipath, in entries */
+ __u32 spi_tidcnt;
+ /* size of the TID Eager list in infinipath, in entries */
+ __u32 spi_tidegrcnt;
+ /* size of a single receive header queue entry. */
+ __u32 spi_rcvhdrent_size;
+ /*
+ * Count of receive header queue entries allocated.
+ * This may be less than the spu_rcvhdrcnt passed in!.
+ */
+ __u32 spi_rcvhdr_cnt;
+
+ /* per-chip and other runtime features bitmap (IPATH_RUNTIME_*) */
+ __u32 spi_runtime_flags;
+
+ /* address where receive buffer queue is mapped into */
+ __u64 spi_rcvhdr_base;
+
+ /* user program. */
+
+ /* base address of eager TID receive buffers. */
+ __u64 spi_rcv_egrbufs;
+
+ /* Allocated by initialization code, not by protocol. */
+
+ /*
+ * Size of each TID buffer in host memory, starting at
+ * spi_rcv_egrbufs. The buffers are virtually contiguous.
+ */
+ __u32 spi_rcv_egrbufsize;
+ /*
+ * The special QP (queue pair) value that identifies an infinipath
+ * protocol packet from standard IB packets. More, probably much
+ * more, to be added.
+ */
+ __u32 spi_qpair;
+
+ /*
+ * User register base for init code, not to be used directly by
+ * protocol or applications.
+ */
+ __u64 __spi_uregbase;
+ /*
+ * Maximum buffer size in bytes that can be used in a single TID
+ * entry (assuming the buffer is aligned to this boundary). This is
+ * the minimum of what the hardware and software support Guaranteed
+ * to be a power of 2.
+ */
+ __u32 spi_tid_maxsize;
+ /*
+ * alignment of each pio send buffer (byte count
+ * to add to spi_piobufbase to get to second buffer)
+ */
+ __u32 spi_pioalign;
+ /*
+ * The index of the first pio buffer available to this process;
+ * needed to do lookup in spi_pioavailaddr; not added to
+ * spi_piobufbase.
+ */
+ __u32 spi_pioindex;
+ /* number of buffers mapped for this process */
+ __u32 spi_piocnt;
+
+ /*
+ * Base address of writeonly pio buffers for this process.
+ * Each buffer has spi_piosize words, and is aligned on spi_pioalign
+ * boundaries. spi_piocnt buffers are mapped from this address
+ */
+ __u64 spi_piobufbase;
+
+ /*
+ * Base address of readonly memory copy of the pioavail registers.
+ * There are 2 bits for each buffer.
+ */
+ __u64 spi_pioavailaddr;
+
+ /*
+ * Address where driver updates a copy of the interface and driver
+ * status (IPATH_STATUS_*) as a 64 bit value. It's followed by a
+ * string indicating hardware error, if there was one.
+ */
+ __u64 spi_status;
+
+ /* number of chip ports available to user processes */
+ __u32 spi_nports;
+ /* unit number of chip we are using */
+ __u32 spi_unit;
+ /* num bufs in each contiguous set */
+ __u32 spi_rcv_egrperchunk;
+ /* size in bytes of each contiguous set */
+ __u32 spi_rcv_egrchunksize;
+ /* total size of mmap to cover full rcvegrbuffers */
+ __u32 spi_rcv_egrbuftotlen;
+} __attribute__ ((aligned(8)));
+
+
+/*
+ * This version number is given to the driver by the user code during
+ * initialization in the spu_userversion field of ipath_user_info, so
+ * the driver can check for compatibility with user code.
+ *
+ * The major version changes when data structures
+ * change in an incompatible way. The driver must be the same or higher
+ * for initialization to succeed. In some cases, a higher version
+ * driver will not interoperate with older software, and initialization
+ * will return an error.
+ */
+#define IPATH_USER_SWMAJOR 1
+
+/*
+ * Minor version differences are always compatible
+ * a within a major version, however if if user software is larger
+ * than driver software, some new features and/or structure fields
+ * may not be implemented; the user code must deal with this if it
+ * cares, or it must abort after initialization reports the difference
+ */
+#define IPATH_USER_SWMINOR 2
+
+#define IPATH_USER_SWVERSION ((IPATH_USER_SWMAJOR<<16) | IPATH_USER_SWMINOR)
+
+#define IPATH_KERN_TYPE 0
+
+/*
+ * Similarly, this is the kernel version going back to the user. It's
+ * slightly different, in that we want to tell if the driver was built as
+ * part of a PathScale release, or from the driver from OpenIB, kernel.org,
+ * or a standard distribution, for support reasons. The high bit is 0 for
+ * non-PathScale, and 1 for PathScale-built/supplied.
+ *
+ * It's returned by the driver to the user code during initialization in the
+ * spi_sw_version field of ipath_base_info, so the user code can in turn
+ * check for compatibility with the kernel.
+*/
+#define IPATH_KERN_SWVERSION ((IPATH_KERN_TYPE<<31) | IPATH_USER_SWVERSION)
+
+/*
+ * This structure is passed to ipath_userinit() to tell the driver where
+ * user code buffers are, sizes, etc. The offsets and sizes of the
+ * fields must remain unchanged, for binary compatibility. It can
+ * be extended, if userversion is changed so user code can tell, if needed
+ */
+struct ipath_user_info {
+ /*
+ * version of user software, to detect compatibility issues.
+ * Should be set to IPATH_USER_SWVERSION.
+ */
+ __u32 spu_userversion;
+
+ /* desired number of receive header queue entries */
+ __u32 spu_rcvhdrcnt;
+
+ /* size of struct base_info to write to */
+ __u32 spu_base_info_size;
+
+ /*
+ * number of words in KD protocol header
+ * This tells InfiniPath how many words to copy to rcvhdrq. If 0,
+ * kernel uses a default. Once set, attempts to set any other value
+ * are an error (EAGAIN) until driver is reloaded.
+ */
+ __u32 spu_rcvhdrsize;
+
+ /*
+ * cache line aligned (64 byte) user address to
+ * which the rcvhdrtail register will be written by infinipath
+ * whenever it changes, so that no chip registers are read in
+ * the performance path.
+ */
+ __u64 spu_rcvhdraddr;
+
+ /*
+ * address of struct base_info to write to
+ */
+ __u64 spu_base_info;
+
+} __attribute__ ((aligned(8)));
+
+/* User commands. */
+
+#define IPATH_CMD_MIN 16
+
+#define IPATH_CMD_USER_INIT 16 /* set up userspace */
+#define IPATH_CMD_PORT_INFO 17 /* find out what resources we got */
+#define IPATH_CMD_RECV_CTRL 18 /* control receipt of packets */
+#define IPATH_CMD_TID_UPDATE 19 /* update expected TID entries */
+#define IPATH_CMD_TID_FREE 20 /* free expected TID entries */
+#define IPATH_CMD_SET_PART_KEY 21 /* add partition key */
+
+#define IPATH_CMD_MAX 21
+
+struct ipath_port_info {
+ __u32 num_active; /* number of active units */
+ __u32 unit; /* unit (chip) assigned to caller */
+ __u32 port; /* port on unit assigned to caller */
+};
+
+struct ipath_tid_info {
+ __u32 tidcnt;
+ /* make structure same size in 32 and 64 bit */
+ __u32 tid__unused;
+ /* virtual address of first page in transfer */
+ __u64 tidvaddr;
+ /* pointer (same size 32/64 bit) to __u16 tid array */
+ __u64 tidlist;
+
+ /*
+ * pointer (same size 32/64 bit) to bitmap of TIDs used
+ * for this call; checked for being large enough at open
+ */
+ __u64 tidmap;
+};
+
+struct ipath_cmd {
+ __u32 type; /* command type */
+ union {
+ struct ipath_tid_info tid_info;
+ struct ipath_user_info user_info;
+ /* address in userspace of struct ipath_port_info to
+ write result to */
+ __u64 port_info;
+ /* enable/disable receipt of packets */
+ __u32 recv_ctrl;
+ /* partition key to set */
+ __u16 part_key;
+ } cmd;
+};
+
+struct ipath_iovec {
+ /* Pointer to data, but same size 32 and 64 bit */
+ __u64 iov_base;
+
+ /*
+ * Length of data; don't need 64 bits, but want
+ * ipath_sendpkt to remain same size as before 32 bit changes, so...
+ */
+ __u64 iov_len;
+};
+
+/*
+ * Describes a single packet for send. Each packet can have one or more
+ * buffers, but the total length (exclusive of IB headers) must be less
+ * than the MTU, and if using the PIO method, entire packet length,
+ * including IB headers, must be less than the ipath_piosize value (words).
+ * Use of this necessitates including sys/uio.h
+ */
+struct __ipath_sendpkt {
+ __u32 sps_flags; /* flags for packet (TBD) */
+ __u32 sps_cnt; /* number of entries to use in sps_iov */
+ /* array of iov's describing packet. TEMPORARY */
+ struct ipath_iovec sps_iov[4];
+};
+
+/* Passed into SMA special file's ->read and ->write methods. */
+struct ipath_sma_pkt
+{
+ __u32 unit; /* unit on which to send packet */
+ __u64 data; /* address of payload in userspace */
+ __u32 len; /* length of payload */
+};
+
+/*
+ * Data layout in I2C flash (for GUID, etc.)
+ * All fields are little-endian binary unless otherwise stated
+ */
+#define IPATH_FLASH_VERSION 1
+struct ipath_flash {
+ /* flash layout version (IPATH_FLASH_VERSION) */
+ __u8 if_fversion;
+ /* checksum protecting if_length bytes */
+ __u8 if_csum;
+ /*
+ * valid length (in use, protected by if_csum), including
+ * if_fversion and if_sum themselves)
+ */
+ __u8 if_length;
+ /* the GUID, in network order */
+ __u8 if_guid[8];
+ /* number of GUIDs to use, starting from if_guid */
+ __u8 if_numguid;
+ /* the board serial number, in ASCII */
+ char if_serial[12];
+ /* board mfg date (YYYYMMDD ASCII) */
+ char if_mfgdate[8];
+ /* last board rework/test date (YYYYMMDD ASCII) */
+ char if_testdate[8];
+ /* logging of error counts, TBD */
+ __u8 if_errcntp[4];
+ /* powered on hours, updated at driver unload */
+ __u8 if_powerhour[2];
+ /* ASCII free-form comment field */
+ char if_comment[32];
+ /* 78 bytes used, min flash size is 128 bytes */
+ __u8 if_future[50];
+};
+
+/*
+ * These are the counters implemented in the chip, and are listed in order.
+ * The InterCaps naming is taken straight from the chip spec.
+ */
+struct infinipath_counters {
+ __u64 LBIntCnt;
+ __u64 LBFlowStallCnt;
+ __u64 Reserved1;
+ __u64 TxUnsupVLErrCnt;
+ __u64 TxDataPktCnt;
+ __u64 TxFlowPktCnt;
+ __u64 TxDwordCnt;
+ __u64 TxLenErrCnt;
+ __u64 TxMaxMinLenErrCnt;
+ __u64 TxUnderrunCnt;
+ __u64 TxFlowStallCnt;
+ __u64 TxDroppedPktCnt;
+ __u64 RxDroppedPktCnt;
+ __u64 RxDataPktCnt;
+ __u64 RxFlowPktCnt;
+ __u64 RxDwordCnt;
+ __u64 RxLenErrCnt;
+ __u64 RxMaxMinLenErrCnt;
+ __u64 RxICRCErrCnt;
+ __u64 RxVCRCErrCnt;
+ __u64 RxFlowCtrlErrCnt;
+ __u64 RxBadFormatCnt;
+ __u64 RxLinkProblemCnt;
+ __u64 RxEBPCnt;
+ __u64 RxLPCRCErrCnt;
+ __u64 RxBufOvflCnt;
+ __u64 RxTIDFullErrCnt;
+ __u64 RxTIDValidErrCnt;
+ __u64 RxPKeyMismatchCnt;
+ __u64 RxP0HdrEgrOvflCnt;
+ __u64 RxP1HdrEgrOvflCnt;
+ __u64 RxP2HdrEgrOvflCnt;
+ __u64 RxP3HdrEgrOvflCnt;
+ __u64 RxP4HdrEgrOvflCnt;
+ __u64 RxP5HdrEgrOvflCnt;
+ __u64 RxP6HdrEgrOvflCnt;
+ __u64 RxP7HdrEgrOvflCnt;
+ __u64 RxP8HdrEgrOvflCnt;
+ __u64 Reserved6;
+ __u64 Reserved7;
+ __u64 IBStatusChangeCnt;
+ __u64 IBLinkErrRecoveryCnt;
+ __u64 IBLinkDownedCnt;
+ __u64 IBSymbolErrCnt;
+};
+
+/*
+ * The next set of defines are for packet headers, and chip register
+ * and memory bits that are visible to and/or used by user-mode software
+ * The other bits that are used only by the driver or diags are in
+ * ipath_registers.h
+ */
+
+/* RcvHdrFlags bits */
+#define INFINIPATH_RHF_LENGTH_MASK 0x7FF
+#define INFINIPATH_RHF_LENGTH_SHIFT 0
+#define INFINIPATH_RHF_RCVTYPE_MASK 0x7
+#define INFINIPATH_RHF_RCVTYPE_SHIFT 11
+#define INFINIPATH_RHF_EGRINDEX_MASK 0x7FF
+#define INFINIPATH_RHF_EGRINDEX_SHIFT 16
+#define INFINIPATH_RHF_H_ICRCERR 0x80000000
+#define INFINIPATH_RHF_H_VCRCERR 0x40000000
+#define INFINIPATH_RHF_H_PARITYERR 0x20000000
+#define INFINIPATH_RHF_H_LENERR 0x10000000
+#define INFINIPATH_RHF_H_MTUERR 0x08000000
+#define INFINIPATH_RHF_H_IHDRERR 0x04000000
+#define INFINIPATH_RHF_H_TIDERR 0x02000000
+#define INFINIPATH_RHF_H_MKERR 0x01000000
+#define INFINIPATH_RHF_H_IBERR 0x00800000
+#define INFINIPATH_RHF_L_SWA 0x00008000
+#define INFINIPATH_RHF_L_SWB 0x00004000
+
+/* infinipath header fields */
+#define INFINIPATH_I_VERS_MASK 0xF
+#define INFINIPATH_I_VERS_SHIFT 28
+#define INFINIPATH_I_PORT_MASK 0xF
+#define INFINIPATH_I_PORT_SHIFT 24
+#define INFINIPATH_I_TID_MASK 0x7FF
+#define INFINIPATH_I_TID_SHIFT 13
+#define INFINIPATH_I_OFFSET_MASK 0x1FFF
+#define INFINIPATH_I_OFFSET_SHIFT 0
+
+/* K_PktFlags bits */
+#define INFINIPATH_KPF_INTR 0x1
+
+/* SendPIO per-buffer control */
+#define INFINIPATH_SP_LENGTHP1_MASK 0x3FF
+#define INFINIPATH_SP_LENGTHP1_SHIFT 0
+#define INFINIPATH_SP_INTR 0x80000000
+#define INFINIPATH_SP_TEST 0x40000000
+#define INFINIPATH_SP_TESTEBP 0x20000000
+
+/* SendPIOAvail bits */
+#define INFINIPATH_SENDPIOAVAIL_BUSY_SHIFT 1
+#define INFINIPATH_SENDPIOAVAIL_CHECK_SHIFT 0
+
+#endif /* _IPATH_COMMON_H */