| /* |
| * Copyright (c) 2006, 2007 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 _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 QLogic Inc. InfiniPath */ |
| #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 |
| #define IPATH_IB_LINK_LOOPBACK 6 /* enable local loopback */ |
| #define IPATH_IB_LINK_EXTERNAL 7 /* normal, disable local loopback */ |
| |
| /* |
| * 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; |
| /* kernel receive interrupts that didn't read intstat */ |
| __u64 sps_fastrcvint; |
| /* 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. Obsolete. */ |
| __u64 sps_sma_spkts; |
| /* number of SMA packets received by driver. Obsolete. */ |
| __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]; |
| __u16 sps_unused16[4]; /* available; maintaining compatible layout */ |
| /* 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, etc.) |
| */ |
| __u64 sps_krdrops; |
| __u64 sps_txeparity; /* PIO buffer parity error, recovered */ |
| /* 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 |
| /* 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 |
| #define IPATH_RUNTIME_MASTER 0x10 |
| #define IPATH_RUNTIME_PBC_REWRITE 0x20 |
| #define IPATH_RUNTIME_LOOSE_DMA_ALIGN 0x40 |
| |
| /* |
| * 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 */ |
| __u16 spi_port; |
| __u16 spi_subport; |
| /* |
| * 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 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 (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; |
| __u32 spi_filler_for_align; |
| /* address of readonly memory copy of the rcvhdrq tail register. */ |
| __u64 spi_rcvhdr_tailaddr; |
| |
| /* shared memory pages for subports if port is shared */ |
| __u64 spi_subport_uregbase; |
| __u64 spi_subport_rcvegrbuf; |
| __u64 spi_subport_rcvhdr_base; |
| |
| /* shared memory page for hardware port if it is shared */ |
| __u64 spi_port_uregbase; |
| __u64 spi_port_rcvegrbuf; |
| __u64 spi_port_rcvhdr_base; |
| __u64 spi_port_rcvhdr_tailaddr; |
| |
| } __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 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 5 |
| |
| #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 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 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; |
| |
| /* |
| * If two or more processes wish to share a port, each process |
| * must set the spu_subport_cnt and spu_subport_id to the same |
| * values. The only restriction on the spu_subport_id is that |
| * it be unique for a given node. |
| */ |
| __u16 spu_subport_cnt; |
| __u16 spu_subport_id; |
| |
| __u32 spu_unused; /* kept for compatible layout */ |
| |
| /* |
| * 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 /* old set up userspace (for old user code) */ |
| #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_SLAVE_INFO 22 /* return info on slave processes (for old user code) */ |
| #define IPATH_CMD_ASSIGN_PORT 23 /* allocate HCA and port */ |
| #define IPATH_CMD_USER_INIT 24 /* set up userspace */ |
| #define IPATH_CMD_UNUSED_1 25 |
| #define IPATH_CMD_UNUSED_2 26 |
| #define IPATH_CMD_PIOAVAILUPD 27 /* force an update of PIOAvail reg */ |
| |
| #define IPATH_CMD_MAX 27 |
| |
| struct ipath_port_info { |
| __u32 num_active; /* number of active units */ |
| __u32 unit; /* unit (chip) assigned to caller */ |
| __u16 port; /* port on unit assigned to caller */ |
| __u16 subport; /* subport on unit assigned to caller */ |
| __u16 num_ports; /* number of ports available on unit */ |
| __u16 num_subports; /* number of subports opened on port */ |
| }; |
| |
| 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; |
| /* user address of __u32 bitmask of active slaves */ |
| __u64 slave_mask_addr; |
| } 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 diag data special file's ->write method. */ |
| struct ipath_diag_pkt { |
| __u32 unit; |
| __u64 data; |
| __u32 len; |
| }; |
| |
| /* |
| * Data layout in I2C flash (for GUID, etc.) |
| * All fields are little-endian binary unless otherwise stated |
| */ |
| #define IPATH_FLASH_VERSION 2 |
| 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_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 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 |
| #define INFINIPATH_KPF_SUBPORT_MASK 0x3 |
| #define INFINIPATH_KPF_SUBPORT_SHIFT 1 |
| |
| #define INFINIPATH_MAX_SUBPORT 4 |
| |
| /* SendPIO per-buffer control */ |
| #define INFINIPATH_SP_TEST 0x40 |
| #define INFINIPATH_SP_TESTEBP 0x20 |
| |
| /* SendPIOAvail bits */ |
| #define INFINIPATH_SENDPIOAVAIL_BUSY_SHIFT 1 |
| #define INFINIPATH_SENDPIOAVAIL_CHECK_SHIFT 0 |
| |
| /* infinipath header format */ |
| struct ipath_header { |
| /* |
| * Version - 4 bits, Port - 4 bits, TID - 10 bits and Offset - |
| * 14 bits before ECO change ~28 Dec 03. After that, Vers 4, |
| * Port 4, TID 11, offset 13. |
| */ |
| __le32 ver_port_tid_offset; |
| __le16 chksum; |
| __le16 pkt_flags; |
| }; |
| |
| /* infinipath user message header format. |
| * This structure contains the first 4 fields common to all protocols |
| * that employ infinipath. |
| */ |
| struct ipath_message_header { |
| __be16 lrh[4]; |
| __be32 bth[3]; |
| /* fields below this point are in host byte order */ |
| struct ipath_header iph; |
| __u8 sub_opcode; |
| }; |
| |
| /* infinipath ethernet header format */ |
| struct ether_header { |
| __be16 lrh[4]; |
| __be32 bth[3]; |
| struct ipath_header iph; |
| __u8 sub_opcode; |
| __u8 cmd; |
| __be16 lid; |
| __u16 mac[3]; |
| __u8 frag_num; |
| __u8 seq_num; |
| __le32 len; |
| /* MUST be of word size due to PIO write requirements */ |
| __le32 csum; |
| __le16 csum_offset; |
| __le16 flags; |
| __u16 first_2_bytes; |
| __u8 unused[2]; /* currently unused */ |
| }; |
| |
| |
| /* IB - LRH header consts */ |
| #define IPATH_LRH_GRH 0x0003 /* 1. word of IB LRH - next header: GRH */ |
| #define IPATH_LRH_BTH 0x0002 /* 1. word of IB LRH - next header: BTH */ |
| |
| /* misc. */ |
| #define SIZE_OF_CRC 1 |
| |
| #define IPATH_DEFAULT_P_KEY 0xFFFF |
| #define IPATH_PERMISSIVE_LID 0xFFFF |
| #define IPATH_AETH_CREDIT_SHIFT 24 |
| #define IPATH_AETH_CREDIT_MASK 0x1F |
| #define IPATH_AETH_CREDIT_INVAL 0x1F |
| #define IPATH_PSN_MASK 0xFFFFFF |
| #define IPATH_MSN_MASK 0xFFFFFF |
| #define IPATH_QPN_MASK 0xFFFFFF |
| #define IPATH_MULTICAST_LID_BASE 0xC000 |
| #define IPATH_MULTICAST_QPN 0xFFFFFF |
| |
| /* Receive Header Queue: receive type (from infinipath) */ |
| #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 |
| |
| |
| /* sub OpCodes - ith4x */ |
| #define IPATH_ITH4X_OPCODE_ENCAP 0x81 |
| #define IPATH_ITH4X_OPCODE_LID_ARP 0x82 |
| |
| #define IPATH_HEADER_QUEUE_WORDS 9 |
| |
| /* functions for extracting fields from rcvhdrq entries for the driver. |
| */ |
| static inline __u32 ipath_hdrget_err_flags(const __le32 * rbuf) |
| { |
| return __le32_to_cpu(rbuf[1]); |
| } |
| |
| static inline __u32 ipath_hdrget_rcv_type(const __le32 * rbuf) |
| { |
| return (__le32_to_cpu(rbuf[0]) >> INFINIPATH_RHF_RCVTYPE_SHIFT) |
| & INFINIPATH_RHF_RCVTYPE_MASK; |
| } |
| |
| static inline __u32 ipath_hdrget_length_in_bytes(const __le32 * rbuf) |
| { |
| return ((__le32_to_cpu(rbuf[0]) >> INFINIPATH_RHF_LENGTH_SHIFT) |
| & INFINIPATH_RHF_LENGTH_MASK) << 2; |
| } |
| |
| static inline __u32 ipath_hdrget_index(const __le32 * rbuf) |
| { |
| return (__le32_to_cpu(rbuf[0]) >> INFINIPATH_RHF_EGRINDEX_SHIFT) |
| & INFINIPATH_RHF_EGRINDEX_MASK; |
| } |
| |
| static inline __u32 ipath_hdrget_ipath_ver(__le32 hdrword) |
| { |
| return (__le32_to_cpu(hdrword) >> INFINIPATH_I_VERS_SHIFT) |
| & INFINIPATH_I_VERS_MASK; |
| } |
| |
| #endif /* _IPATH_COMMON_H */ |