diff options
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_common.h')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_common.h | 158 |
1 files changed, 130 insertions, 28 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_common.h b/drivers/infiniband/hw/ipath/ipath_common.h index 48a55247b832..062bd392e7e5 100644 --- a/drivers/infiniband/hw/ipath/ipath_common.h +++ b/drivers/infiniband/hw/ipath/ipath_common.h @@ -1,4 +1,5 @@ /* + * Copyright (c) 2006 QLogic, Inc. 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 @@ -38,7 +39,8 @@ * to communicate between kernel and user code. */ -/* This is the IEEE-assigned OUI for PathScale, Inc. */ + +/* 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 @@ -96,8 +98,8 @@ struct infinipath_stats { __u64 sps_hwerrs; /* number of times IB link changed state unexpectedly */ __u64 sps_iblink; - /* no longer used; left for compatibility */ - __u64 sps_unused3; + /* 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 */ @@ -121,8 +123,7 @@ struct infinipath_stats { __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]; + __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 */ @@ -140,10 +141,8 @@ struct infinipath_stats { * 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]; + __u64 __sps_pad[46]; }; /* @@ -310,6 +309,9 @@ struct ipath_base_info { __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; } __attribute__ ((aligned(8))); @@ -342,9 +344,9 @@ struct ipath_base_info { /* * 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. + * 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 @@ -379,13 +381,7 @@ struct ipath_user_info { */ __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; + __u64 spu_unused; /* kept for compatible layout */ /* * address of struct base_info to write to @@ -481,7 +477,7 @@ struct ipath_sma_pkt * Data layout in I2C flash (for GUID, etc.) * All fields are little-endian binary unless otherwise stated */ -#define IPATH_FLASH_VERSION 1 +#define IPATH_FLASH_VERSION 2 struct ipath_flash { /* flash layout version (IPATH_FLASH_VERSION) */ __u8 if_fversion; @@ -489,14 +485,14 @@ struct ipath_flash { __u8 if_csum; /* * valid length (in use, protected by if_csum), including - * if_fversion and if_sum themselves) + * 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 board serial number, in ASCII */ + /* the (last 10 characters of) board serial number, in ASCII */ char if_serial[12]; /* board mfg date (YYYYMMDD ASCII) */ char if_mfgdate[8]; @@ -508,8 +504,10 @@ struct ipath_flash { __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]; + /* 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]; }; /* @@ -603,14 +601,118 @@ struct infinipath_counters { #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 +#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 3, TID 11, offset 14. + */ + __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 */ |