/*
* Copyright (c) 2006, 2007, 2008, 2009, 2010 QLogic Corporation.
* All rights reserved.
* 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 _QIB_COMMON_H
#define _QIB_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 QLogic Inc. QLogic_IB */
#define QIB_SRC_OUI_1 0x00
#define QIB_SRC_OUI_2 0x11
#define QIB_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.
* QIB_VERBOSE_TRACING define as 1 if you want additional tracing in
* fastpath code
* QIB_TRACE_REGWRITES define as 1 if you want register writes to be
* traced in faspath code
* _QIB_TRACING define as 0 if you want to remove all tracing in a
* compilation unit
*/
/*
* The value in the BTH QP field that QLogic_IB uses to differentiate
* an qlogic_ib protocol IB packet vs standard IB transport
* This it needs to be even (0x656b78), because the LSB is sometimes
* used for the MSB of context. The change may cause a problem
* interoperating with older software.
*/
#define QIB_KD_QP 0x656b78
/*
* These are the status bits readable (in ascii form, 64bit value)
* from the "status" sysfs file. For binary compatibility, values
* must remain as is; removed states can be reused for different
* purposes.
*/
#define QIB_STATUS_INITTED 0x1 /* basic initialization done */
/* Chip has been found and initted */
#define QIB_STATUS_CHIP_PRESENT 0x20
/* IB link is at ACTIVE, usable for data traffic */
#define QIB_STATUS_IB_READY 0x40
/* link is configured, LID, MTU, etc. have been set */
#define QIB_STATUS_IB_CONF 0x80
/* A Fatal hardware error has occurred. */
#define QIB_STATUS_HWERROR 0x200
/*
* The list of usermode accessible registers. Also see Reg_* later in file.
*/
enum qib_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. */
_QIB_UregMax
};
/* bit values for spi_runtime_flags */
#define QIB_RUNTIME_PCIE 0x0002
#define QIB_RUNTIME_FORCE_WC_ORDER 0x0004
#define QIB_RUNTIME_RCVHDR_COPY 0x0008
#define QIB_RUNTIME_MASTER 0x0010
#define QIB_RUNTIME_RCHK 0x0020
#define QIB_RUNTIME_NODMA_RTAIL 0x0080
#define QIB_RUNTIME_SPECIAL_TRIGGER 0x0100
#define QIB_RUNTIME_SDMA 0x0200
#define QIB_RUNTIME_FORCE_PIOAVAIL 0x0400
#define QIB_RUNTIME_PIO_REGSWAPPED 0x0800
#define QIB_RUNTIME_CTXT_MSB_IN_QP 0x1000
#define QIB_RUNTIME_CTXT_REDIRECT 0x2000
#define QIB_RUNTIME_HDRSUPP 0x4000
/*
* This structure is returned by qib_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 qib_base_info {
/* version of hardware, for feature checking. */
__u32 spi_hw_version;
/* version of software, for feature checking. */
__u32 spi_sw_version;
/* QLogic_IB context assigned, goes into sent packets */
__u16 spi_ctxt;
__u16 spi_subctxt;
/*
* 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 qlogic_ib, in entries */
__u32 spi_tidcnt;
/* size of the TID Eager list in qlogic_ib, in entries */
__u32 spi_tidegrcnt;
/* size of a single receive header queue entry in words. */
__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 (QIB_RUNTIME_*) */
__u32 spi_runtime_flags;
/* address where hardware receive header queue is mapped */
__u64 spi_rcvhdr_base;
/* user program. */
/* base address of eager TID receive buffers used by hardware. */
__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 qlogic_ib
* 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. Always points to chip registers,
* for normal or shared context.
*/
__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 (QIB_STATUS_*) as a 64 bit value. It's followed by a
* link status qword (formerly combined with driver status), then a
* string indicating hardware error, if there was one.
*/
__u64 spi_status;
/* number of chip ctxts available to user processes */
__u32 spi_nctxts;
__u16 spi_unit; /* unit number of chip we are using */
__u16 spi_port; /* IB port number we are using */
/* 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;
__u32 spi_rhf_offset; /* dword offset in hdrqent for rcvhdr flags */
/* address of readonly memory copy of the rcvhdrq tail register. */
__u64 spi_rcvhdr_tailaddr;
/*
* shared memory pages for subctxts if ctxt is shared; these cover
* all the processes in the group sharing a single context.
* all have enough space for the num_subcontexts value on this job.
*/
__u64 spi_subctxt_uregbase;
__u64 spi_subctxt_rcvegrbuf;
__u64 spi_subctxt_rcvhdr_base;
/* shared memory page for send buffer disarm status */
__u64 spi_sendbuf_status;
} __attribute__ ((aligned(8)));
/*
* This version number is given to the driver by the user code during
* initialization in the spu_userversion field of qib_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 QIB_USER_SWMAJOR 1
/*
* Minor version differences are always compatible
* a within a major version, however 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 QIB_USER_SWMINOR 11
#define QIB_USER_SWVERSION ((QIB_USER_SWMAJOR << 16) | QIB_USER_SWMINOR)
#ifndef QIB_KERN_TYPE
#define QIB_KERN_TYPE 0
#define QIB_IDSTR "QLogic kernel.org driver"
#endif
/*
* 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 QLogic release, or from the driver from openfabrics.org,
* kernel.org, or a standard distribution, for support reasons.
* The high bit is 0 for non-QLogic and 1 for QLogic-built/supplied.
*
* It's returned by the driver to the user code during initialization in the
* spi_sw_version field of qib_base_info, so the user code can in turn
* check for compatibility with the kernel.
*/
#define QIB_KERN_SWVERSION ((QIB_KERN_TYPE << 31) | QIB_USER_SWVERSION)
/*
* If the unit is specified via open, HCA choice is fixed. If port is
* specified, it's also fixed. Otherwise we try to spread contexts
* across ports and HCAs, using different algorithims. WITHIN is
* the old default, prior to this mechanism.
*/
#define QIB_PORT_ALG_ACROSS 0 /* round robin contexts across HCAs, then
* ports; this is the default */
#define QIB_PORT_ALG_WITHIN 1 /* use all contexts on an HCA (round robin
* active ports within), then next HCA */
#define QIB_PORT_ALG_COUNT 2 /* number of algorithm choices */
/*
* This structure is passed to qib_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 qib_user_info {
/*
* version of user software, to detect compatibility issues.
* Should be set to QIB_USER_SWVERSION.
*/
__u32 spu_userversion;
__u32 _spu_unused2;
/* size of struct base_info to write to */
__u32 spu_base_info_size;
__u32 spu_port_alg; /* which QIB_PORT_ALG_*; unused user minor < 11 */
/*
* If two or more processes wish to share a context, each process
* must set the spu_subctxt_cnt and spu_subctxt_id to the same
* values. The only restriction on the spu_subctxt_id is that
* it be unique for a given node.
*/
__u16 spu_subctxt_cnt;
__u16 spu_subctxt_id;
__u32 spu_port; /* IB port requested by user if > 0 */
/*
* address of struct base_info to write to
*/
__u64 spu_base_info;
} __attribute__ ((aligned(8)));
/* User commands. */
/* 16 available, was: old set up userspace (for old user code) */
#define QIB_CMD_CTXT_INFO 17 /* find out what resources we got */
#define QIB_CMD_RECV_CTRL 18 /* control receipt of packets */
#define QIB_CMD_TID_UPDATE 19 /* update expected TID entries */
#define QIB_CMD_TID_FREE 20 /* free expected TID entries */
#define QIB_CMD_SET_PART_KEY 21 /* add partition key */
/* 22 available, was: return info on slave processes (for old user code) */
#define QIB_CMD_ASSIGN_CTXT 23 /* allocate HCA and ctxt */
#define QIB_CMD_USER_INIT 24 /* set up userspace */
#define QIB_CMD_UNUSED_1 25
#define QIB_CMD_UNUSED_2 26
#define QIB_CMD_PIOAVAILUPD 27 /* force an update of PIOAvail reg */
#define QIB_CMD_POLL_TYPE 28 /* set the kind of polling we want */
#define QIB_CMD_ARMLAUNCH_CTRL 29 /* armlaunch detection control */
/* 30 is unused */
#define QIB_CMD_SDMA_INFLIGHT 31 /* sdma inflight counter request */
#define QIB_CMD_SDMA_COMPLETE 32 /* sdma completion counter request */
/* 33 available, was a testing feature */
#define QIB_CMD_DISARM_BUFS 34 /* disarm send buffers w/ errors */
#define QIB_CMD_ACK_EVENT 35 /* ack & clear bits */
#define QIB_CMD_CPUS_LIST 36 /* list of cpus allocated, for pinned
* processes: qib_cpus_list */
/*
* QIB_CMD_ACK_EVENT obsoletes QIB_CMD_DISARM_BUFS, but we keep it for
* compatibility with libraries from previous release. The ACK_EVENT
* will take appropriate driver action (if any, just DISARM for now),
* then clear the bits passed in as part of the mask. These bits are
* in the first 64bit word at spi_sendbuf_status, and are passed to
* the driver in the event_mask union as well.
*/
#define _QIB_EVENT_DISARM_BUFS_BIT 0
#define _QIB_EVENT_LINKDOWN_BIT 1
#define _QIB_EVENT_LID_CHANGE_BIT 2
#define _QIB_EVENT_LMC_CHANGE_BIT 3
#define _QIB_EVENT_SL2VL_CHANGE_BIT 4
#define _QIB_MAX_EVENT_BIT _QIB_EVENT_SL2VL_CHANGE_BIT
#define QIB_EVENT_DISARM_BUFS_BIT (1UL << _QIB_EVENT_DISARM_BUFS_BIT)
#define QIB_EVENT_LINKDOWN_BIT (1UL << _QIB_EVENT_LINKDOWN_BIT)
#define QIB_EVENT_LID_CHANGE_BIT (1UL << _QIB_EVENT_LID_CHANGE_BIT)
#define QIB_EVENT_LMC_CHANGE_BIT (1UL << _QIB_EVENT_LMC_CHANGE_BIT)
#define QIB_EVENT_SL2VL_CHANGE_BIT (1UL << _QIB_EVENT_SL2VL_CHANGE_BIT)
/*
* Poll types
*/
#define QIB_POLL_TYPE_ANYRCV 0x0
#define QIB_POLL_TYPE_URGENT 0x1
struct qib_ctxt_info {
__u16 num_active; /* number of active units */
__u16 unit; /* unit (chip) assigned to caller */
__u16 port; /* IB port assigned to caller (1-based) */
__u16 ctxt; /* ctxt on unit assigned to caller */
__u16 subctxt; /* subctxt on unit assigned to caller */
__u16 num_ctxts; /* number of ctxts available on unit */
__u16 num_subctxts; /* number of subctxts opened on ctxt */
__u16 rec_cpu; /* cpu # for affinity (ffff if none) */
};
struct qib_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 qib_cmd {
__u32 type; /* command type */
union {
struct qib_tid_info tid_info;
struct qib_user_info user_info;
/*
* address in userspace where we should put the sdma
* inflight counter
*/
__u64 sdma_inflight;
/*
* address in userspace where we should put the sdma
* completion counter
*/
__u64 sdma_complete;
/* address in userspace of struct qib_ctxt_info to
write result to */
__u64 ctxt_info;
/* enable/disable receipt of packets */
__u32 recv_ctrl;
/* enable/disable armlaunch errors (non-zero to enable) */
__u32 armlaunch_ctrl;
/* partition key to set */
__u16 part_key;
/* user address of __u32 bitmask of active slaves */
__u64 slave_mask_addr;
/* type of polling we want */
__u16 poll_type;
/* back pressure enable bit for one particular context */
__u8 ctxt_bp;
/* qib_user_event_ack(), IPATH_EVENT_* bits */
__u64 event_mask;
} cmd;
};
struct qib_iovec {
/* Pointer to data, but same size 32 and 64 bit */
__u64 iov_base;
/*
* Length of data; don't need 64 bits, but want
* qib_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 qib_piosize value (words).
* Use of this necessitates including sys/uio.h
*/
struct __qib_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 qib_iovec sps_iov[4];
};
/*
* Diagnostics can send a packet by "writing" the following
* structs to the diag data special file.
* This allows a custom
* pbc (+ static rate) qword, so that special modes and deliberate
* changes to CRCs can be used. The elements were also re-ordered
* for better alignment and to avoid padding issues.
*/
#define _DIAG_XPKT_VERS 3
struct qib_diag_xpkt {
__u16 version;
__u16 unit;
__u16 port;
__u16 len;
__u64 data;
__u64 pbc_wd;
};
/*
* Data layout in I2C flash (for GUID, etc.)
* All fields are little-endian binary unless otherwise stated
*/
#define QIB_FLASH_VERSION 2
struct qib_flash {
/* flash layout version (QIB_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_csum 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 (last 10 characters of) 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];
/* Backwards compatible prefix for longer QLogic Serial Numbers */
char if_sprefix[4];
/* 82 bytes used, min flash size is 128 bytes */
__u8 if_future[46];
};
/*
* These are the counters implemented in the chip, and are listed in order.
* The InterCaps naming is taken straight from the chip spec.
*/
struct qlogic_ib_counters {
__u64 LBIntCnt;
__u64 LBFlowStallCnt;
__u64 TxSDmaDescCnt; /* was 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 RxP9HdrEgrOvflCnt;
__u64 RxP10HdrEgrOvflCnt;
__u64 RxP11HdrEgrOvflCnt;
__u64 RxP12HdrEgrOvflCnt;
__u64 RxP13HdrEgrOvflCnt;
__u64 RxP14HdrEgrOvflCnt;
__u64 RxP15HdrEgrOvflCnt;
__u64 RxP16HdrEgrOvflCnt;
__u64 IBStatusChangeCnt;
__u64 IBLinkErrRecoveryCnt;
__u64 IBLinkDownedCnt;
__u64 IBSymbolErrCnt;
__u64 RxVL15DroppedPktCnt;
__u64 RxOtherLocalPhyErrCnt;
__u64 PcieRetryBufDiagQwordCnt;
__u64 ExcessBufferOvflCnt;
__u64 LocalLinkIntegrityErrCnt;
__u64 RxVlErrCnt;
__u64 RxDlidFltrCnt;
};
/*
* 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.
*/
/* RcvHdrFlags bits */
#define QLOGIC_IB_RHF_LENGTH_MASK 0x7FF
#define QLOGIC_IB_RHF_LENGTH_SHIFT 0
#define QLOGIC_IB_RHF_RCVTYPE_MASK 0x7
#define QLOGIC_IB_RHF_RCVTYPE_SHIFT 11
#define QLOGIC_IB_RHF_EGRINDEX_MASK 0xFFF
#define QLOGIC_IB_RHF_EGRINDEX_SHIFT 16
#define QLOGIC_IB_RHF_SEQ_MASK 0xF
#define QLOGIC_IB_RHF_SEQ_SHIFT 0
#define QLOGIC_IB_RHF_HDRQ_OFFSET_MASK 0x7FF
#define QLOGIC_IB_RHF_HDRQ_OFFSET_SHIFT 4
#define QLOGIC_IB_RHF_H_ICRCERR 0x80000000
#define QLOGIC_IB_RHF_H_VCRCERR 0x40000000
#define QLOGIC_IB_RHF_H_PARITYERR 0x20000000
#define QLOGIC_IB_RHF_H_LENERR 0x10000000
#define QLOGIC_IB_RHF_H_MTUERR 0x08000000
#define QLOGIC_IB_RHF_H_IHDRERR 0x04000000
#define QLOGIC_IB_RHF_H_TIDERR 0x02000000
#define QLOGIC_IB_RHF_H_MKERR 0x01000000
#define QLOGIC_IB_RHF_H_IBERR 0x00800000
#define QLOGIC_IB_RHF_H_ERR_MASK 0xFF800000
#define QLOGIC_IB_RHF_L_USE_EGR 0x80000000
#define QLOGIC_IB_RHF_L_SWA 0x00008000
#define QLOGIC_IB_RHF_L_SWB 0x00004000
/* qlogic_ib header fields */
#define QLOGIC_IB_I_VERS_MASK 0xF
#define QLOGIC_IB_I_VERS_SHIFT 28
#define QLOGIC_IB_I_CTXT_MASK 0xF
#define QLOGIC_IB_I_CTXT_SHIFT 24
#define QLOGIC_IB_I_TID_MASK 0x7FF
#define QLOGIC_IB_I_TID_SHIFT 13
#define QLOGIC_IB_I_OFFSET_MASK 0x1FFF
#define QLOGIC_IB_I_OFFSET_SHIFT 0
/* K_PktFlags bits */
#define QLOGIC_IB_KPF_INTR 0x1
#define QLOGIC_IB_KPF_SUBCTXT_MASK 0x3
#define QLOGIC_IB_KPF_SUBCTXT_SHIFT 1
#define QLOGIC_IB_MAX_SUBCTXT 4
/* SendPIO per-buffer control */
#define QLOGIC_IB_SP_TEST 0x40
#define QLOGIC_IB_SP_TESTEBP 0x20
#define QLOGIC_IB_SP_TRIGGER_SHIFT 15
/* SendPIOAvail bits */
#define QLOGIC_IB_SENDPIOAVAIL_BUSY_SHIFT 1
#define QLOGIC_IB_SENDPIOAVAIL_CHECK_SHIFT 0
/* qlogic_ib header format */
struct qib_header {
/*
* Version - 4 bits, Context - 4 bits, TID - 10 bits and Offset -
* 14 bits before ECO change ~28 Dec 03. After that, Vers 4,
* Context 4, TID 11, offset 13.
*/
__le32 ver_ctxt_tid_offset;
__le16 chksum;
__le16 pkt_flags;
};
/*
* qlogic_ib user message header format.
* This structure contains the first 4 fields common to all protocols
* that employ qlogic_ib.
*/
struct qib_message_header {
__be16 lrh[4];
__be32 bth[3];
/* fields below this point are in host byte order */
struct qib_header iph;
__u8 sub_opcode;
};
/* IB - LRH header consts */
#define QIB_LRH_GRH 0x0003 /* 1. word of IB LRH - next header: GRH */
#define QIB_LRH_BTH 0x0002 /* 1. word of IB LRH - next header: BTH */
/* misc. */
#define SIZE_OF_CRC 1
#define QIB_DEFAULT_P_KEY 0xFFFF
#define QIB_PERMISSIVE_LID 0xFFFF
#define QIB_AETH_CREDIT_SHIFT 24
#define QIB_AETH_CREDIT_MASK 0x1F
#define QIB_AETH_CREDIT_INVAL 0x1F
#define QIB_PSN_MASK 0xFFFFFF
#define QIB_MSN_MASK 0xFFFFFF
#define QIB_QPN_MASK 0xFFFFFF
#define QIB_MULTICAST_LID_BASE 0xC000
#define QIB_EAGER_TID_ID QLOGIC_IB_I_TID_MASK
#define QIB_MULTICAST_QPN 0xFFFFFF
/* Receive Header Queue: receive type (from qlogic_ib) */
#define RCVHQ_RCV_TYPE_EXPECTED 0
#define RCVHQ_RCV_TYPE_EAGER 1
#define RCVHQ_RCV_TYPE_NON_KD 2
#define RCVHQ_RCV_TYPE_ERROR 3
#define QIB_HEADER_QUEUE_WORDS 9
/* functions for extracting fields from rcvhdrq entries for the driver.
*/
static inline __u32 qib_hdrget_err_flags(const __le32 *rbuf)
{
return __le32_to_cpu(rbuf[1]) & QLOGIC_IB_RHF_H_ERR_MASK;
}
static inline __u32 qib_hdrget_rcv_type(const __le32 *rbuf)
{
return (__le32_to_cpu(rbuf[0]) >> QLOGIC_IB_RHF_RCVTYPE_SHIFT) &
QLOGIC_IB_RHF_RCVTYPE_MASK;
}
static inline __u32 qib_hdrget_length_in_bytes(const __le32 *rbuf)
{
return ((__le32_to_cpu(rbuf[0]) >> QLOGIC_IB_RHF_LENGTH_SHIFT) &
QLOGIC_IB_RHF_LENGTH_MASK) << 2;
}
static inline __u32 qib_hdrget_index(const __le32 *rbuf)
{
return (__le32_to_cpu(rbuf[0]) >> QLOGIC_IB_RHF_EGRINDEX_SHIFT) &
QLOGIC_IB_RHF_EGRINDEX_MASK;
}
static inline __u32 qib_hdrget_seq(const __le32 *rbuf)
{
return (__le32_to_cpu(rbuf[1]) >> QLOGIC_IB_RHF_SEQ_SHIFT) &
QLOGIC_IB_RHF_SEQ_MASK;
}
static inline __u32 qib_hdrget_offset(const __le32 *rbuf)
{
return (__le32_to_cpu(rbuf[1]) >> QLOGIC_IB_RHF_HDRQ_OFFSET_SHIFT) &
QLOGIC_IB_RHF_HDRQ_OFFSET_MASK;
}
static inline __u32 qib_hdrget_use_egr_buf(const __le32 *rbuf)
{
return __le32_to_cpu(rbuf[0]) & QLOGIC_IB_RHF_L_USE_EGR;
}
static inline __u32 qib_hdrget_qib_ver(__le32 hdrword)
{
return (__le32_to_cpu(hdrword) >> QLOGIC_IB_I_VERS_SHIFT) &
QLOGIC_IB_I_VERS_MASK;
}
#endif /* _QIB_COMMON_H */
