diff options
Diffstat (limited to 'drivers/infiniband/sw/rxe/rxe_hdr.h')
| -rw-r--r-- | drivers/infiniband/sw/rxe/rxe_hdr.h | 960 |
1 files changed, 960 insertions, 0 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_hdr.h b/drivers/infiniband/sw/rxe/rxe_hdr.h new file mode 100644 index 000000000..6cb18406f --- /dev/null +++ b/drivers/infiniband/sw/rxe/rxe_hdr.h @@ -0,0 +1,960 @@ +/* + * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved. + * Copyright (c) 2015 System Fabric Works, 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 RXE_HDR_H +#define RXE_HDR_H + +/* extracted information about a packet carried in an sk_buff struct fits in + * the skbuff cb array. Must be at most 48 bytes. stored in control block of + * sk_buff for received packets. + */ +struct rxe_pkt_info { + struct rxe_dev *rxe; /* device that owns packet */ + struct rxe_qp *qp; /* qp that owns packet */ + struct rxe_send_wqe *wqe; /* send wqe */ + u8 *hdr; /* points to bth */ + u32 mask; /* useful info about pkt */ + u32 psn; /* bth psn of packet */ + u16 pkey_index; /* partition of pkt */ + u16 paylen; /* length of bth - icrc */ + u8 port_num; /* port pkt received on */ + u8 opcode; /* bth opcode of packet */ + u8 offset; /* bth offset from pkt->hdr */ +}; + +/* Macros should be used only for received skb */ +static inline struct rxe_pkt_info *SKB_TO_PKT(struct sk_buff *skb) +{ + BUILD_BUG_ON(sizeof(struct rxe_pkt_info) > sizeof(skb->cb)); + return (void *)skb->cb; +} + +static inline struct sk_buff *PKT_TO_SKB(struct rxe_pkt_info *pkt) +{ + return container_of((void *)pkt, struct sk_buff, cb); +} + +/* + * IBA header types and methods + * + * Some of these are for reference and completeness only since + * rxe does not currently support RD transport + * most of this could be moved into IB core. ib_pack.h has + * part of this but is incomplete + * + * Header specific routines to insert/extract values to/from headers + * the routines that are named __hhh_(set_)fff() take a pointer to a + * hhh header and get(set) the fff field. The routines named + * hhh_(set_)fff take a packet info struct and find the + * header and field based on the opcode in the packet. + * Conversion to/from network byte order from cpu order is also done. + */ + +#define RXE_ICRC_SIZE (4) +#define RXE_MAX_HDR_LENGTH (80) + +/****************************************************************************** + * Base Transport Header + ******************************************************************************/ +struct rxe_bth { + u8 opcode; + u8 flags; + __be16 pkey; + __be32 qpn; + __be32 apsn; +}; + +#define BTH_TVER (0) +#define BTH_DEF_PKEY (0xffff) + +#define BTH_SE_MASK (0x80) +#define BTH_MIG_MASK (0x40) +#define BTH_PAD_MASK (0x30) +#define BTH_TVER_MASK (0x0f) +#define BTH_FECN_MASK (0x80000000) +#define BTH_BECN_MASK (0x40000000) +#define BTH_RESV6A_MASK (0x3f000000) +#define BTH_QPN_MASK (0x00ffffff) +#define BTH_ACK_MASK (0x80000000) +#define BTH_RESV7_MASK (0x7f000000) +#define BTH_PSN_MASK (0x00ffffff) + +static inline u8 __bth_opcode(void *arg) +{ + struct rxe_bth *bth = arg; + + return bth->opcode; +} + +static inline void __bth_set_opcode(void *arg, u8 opcode) +{ + struct rxe_bth *bth = arg; + + bth->opcode = opcode; +} + +static inline u8 __bth_se(void *arg) +{ + struct rxe_bth *bth = arg; + + return 0 != (BTH_SE_MASK & bth->flags); +} + +static inline void __bth_set_se(void *arg, int se) +{ + struct rxe_bth *bth = arg; + + if (se) + bth->flags |= BTH_SE_MASK; + else + bth->flags &= ~BTH_SE_MASK; +} + +static inline u8 __bth_mig(void *arg) +{ + struct rxe_bth *bth = arg; + + return 0 != (BTH_MIG_MASK & bth->flags); +} + +static inline void __bth_set_mig(void *arg, u8 mig) +{ + struct rxe_bth *bth = arg; + + if (mig) + bth->flags |= BTH_MIG_MASK; + else + bth->flags &= ~BTH_MIG_MASK; +} + +static inline u8 __bth_pad(void *arg) +{ + struct rxe_bth *bth = arg; + + return (BTH_PAD_MASK & bth->flags) >> 4; +} + +static inline void __bth_set_pad(void *arg, u8 pad) +{ + struct rxe_bth *bth = arg; + + bth->flags = (BTH_PAD_MASK & (pad << 4)) | + (~BTH_PAD_MASK & bth->flags); +} + +static inline u8 __bth_tver(void *arg) +{ + struct rxe_bth *bth = arg; + + return BTH_TVER_MASK & bth->flags; +} + +static inline void __bth_set_tver(void *arg, u8 tver) +{ + struct rxe_bth *bth = arg; + + bth->flags = (BTH_TVER_MASK & tver) | + (~BTH_TVER_MASK & bth->flags); +} + +static inline u16 __bth_pkey(void *arg) +{ + struct rxe_bth *bth = arg; + + return be16_to_cpu(bth->pkey); +} + +static inline void __bth_set_pkey(void *arg, u16 pkey) +{ + struct rxe_bth *bth = arg; + + bth->pkey = cpu_to_be16(pkey); +} + +static inline u32 __bth_qpn(void *arg) +{ + struct rxe_bth *bth = arg; + + return BTH_QPN_MASK & be32_to_cpu(bth->qpn); +} + +static inline void __bth_set_qpn(void *arg, u32 qpn) +{ + struct rxe_bth *bth = arg; + u32 resvqpn = be32_to_cpu(bth->qpn); + + bth->qpn = cpu_to_be32((BTH_QPN_MASK & qpn) | + (~BTH_QPN_MASK & resvqpn)); +} + +static inline int __bth_fecn(void *arg) +{ + struct rxe_bth *bth = arg; + + return 0 != (cpu_to_be32(BTH_FECN_MASK) & bth->qpn); +} + +static inline void __bth_set_fecn(void *arg, int fecn) +{ + struct rxe_bth *bth = arg; + + if (fecn) + bth->qpn |= cpu_to_be32(BTH_FECN_MASK); + else + bth->qpn &= ~cpu_to_be32(BTH_FECN_MASK); +} + +static inline int __bth_becn(void *arg) +{ + struct rxe_bth *bth = arg; + + return 0 != (cpu_to_be32(BTH_BECN_MASK) & bth->qpn); +} + +static inline void __bth_set_becn(void *arg, int becn) +{ + struct rxe_bth *bth = arg; + + if (becn) + bth->qpn |= cpu_to_be32(BTH_BECN_MASK); + else + bth->qpn &= ~cpu_to_be32(BTH_BECN_MASK); +} + +static inline u8 __bth_resv6a(void *arg) +{ + struct rxe_bth *bth = arg; + + return (BTH_RESV6A_MASK & be32_to_cpu(bth->qpn)) >> 24; +} + +static inline void __bth_set_resv6a(void *arg) +{ + struct rxe_bth *bth = arg; + + bth->qpn = cpu_to_be32(~BTH_RESV6A_MASK); +} + +static inline int __bth_ack(void *arg) +{ + struct rxe_bth *bth = arg; + + return 0 != (cpu_to_be32(BTH_ACK_MASK) & bth->apsn); +} + +static inline void __bth_set_ack(void *arg, int ack) +{ + struct rxe_bth *bth = arg; + + if (ack) + bth->apsn |= cpu_to_be32(BTH_ACK_MASK); + else + bth->apsn &= ~cpu_to_be32(BTH_ACK_MASK); +} + +static inline void __bth_set_resv7(void *arg) +{ + struct rxe_bth *bth = arg; + + bth->apsn &= ~cpu_to_be32(BTH_RESV7_MASK); +} + +static inline u32 __bth_psn(void *arg) +{ + struct rxe_bth *bth = arg; + + return BTH_PSN_MASK & be32_to_cpu(bth->apsn); +} + +static inline void __bth_set_psn(void *arg, u32 psn) +{ + struct rxe_bth *bth = arg; + u32 apsn = be32_to_cpu(bth->apsn); + + bth->apsn = cpu_to_be32((BTH_PSN_MASK & psn) | + (~BTH_PSN_MASK & apsn)); +} + +static inline u8 bth_opcode(struct rxe_pkt_info *pkt) +{ + return __bth_opcode(pkt->hdr + pkt->offset); +} + +static inline void bth_set_opcode(struct rxe_pkt_info *pkt, u8 opcode) +{ + __bth_set_opcode(pkt->hdr + pkt->offset, opcode); +} + +static inline u8 bth_se(struct rxe_pkt_info *pkt) +{ + return __bth_se(pkt->hdr + pkt->offset); +} + +static inline void bth_set_se(struct rxe_pkt_info *pkt, int se) +{ + __bth_set_se(pkt->hdr + pkt->offset, se); +} + +static inline u8 bth_mig(struct rxe_pkt_info *pkt) +{ + return __bth_mig(pkt->hdr + pkt->offset); +} + +static inline void bth_set_mig(struct rxe_pkt_info *pkt, u8 mig) +{ + __bth_set_mig(pkt->hdr + pkt->offset, mig); +} + +static inline u8 bth_pad(struct rxe_pkt_info *pkt) +{ + return __bth_pad(pkt->hdr + pkt->offset); +} + +static inline void bth_set_pad(struct rxe_pkt_info *pkt, u8 pad) +{ + __bth_set_pad(pkt->hdr + pkt->offset, pad); +} + +static inline u8 bth_tver(struct rxe_pkt_info *pkt) +{ + return __bth_tver(pkt->hdr + pkt->offset); +} + +static inline void bth_set_tver(struct rxe_pkt_info *pkt, u8 tver) +{ + __bth_set_tver(pkt->hdr + pkt->offset, tver); +} + +static inline u16 bth_pkey(struct rxe_pkt_info *pkt) +{ + return __bth_pkey(pkt->hdr + pkt->offset); +} + +static inline void bth_set_pkey(struct rxe_pkt_info *pkt, u16 pkey) +{ + __bth_set_pkey(pkt->hdr + pkt->offset, pkey); +} + +static inline u32 bth_qpn(struct rxe_pkt_info *pkt) +{ + return __bth_qpn(pkt->hdr + pkt->offset); +} + +static inline void bth_set_qpn(struct rxe_pkt_info *pkt, u32 qpn) +{ + __bth_set_qpn(pkt->hdr + pkt->offset, qpn); +} + +static inline int bth_fecn(struct rxe_pkt_info *pkt) +{ + return __bth_fecn(pkt->hdr + pkt->offset); +} + +static inline void bth_set_fecn(struct rxe_pkt_info *pkt, int fecn) +{ + __bth_set_fecn(pkt->hdr + pkt->offset, fecn); +} + +static inline int bth_becn(struct rxe_pkt_info *pkt) +{ + return __bth_becn(pkt->hdr + pkt->offset); +} + +static inline void bth_set_becn(struct rxe_pkt_info *pkt, int becn) +{ + __bth_set_becn(pkt->hdr + pkt->offset, becn); +} + +static inline u8 bth_resv6a(struct rxe_pkt_info *pkt) +{ + return __bth_resv6a(pkt->hdr + pkt->offset); +} + +static inline void bth_set_resv6a(struct rxe_pkt_info *pkt) +{ + __bth_set_resv6a(pkt->hdr + pkt->offset); +} + +static inline int bth_ack(struct rxe_pkt_info *pkt) +{ + return __bth_ack(pkt->hdr + pkt->offset); +} + +static inline void bth_set_ack(struct rxe_pkt_info *pkt, int ack) +{ + __bth_set_ack(pkt->hdr + pkt->offset, ack); +} + +static inline void bth_set_resv7(struct rxe_pkt_info *pkt) +{ + __bth_set_resv7(pkt->hdr + pkt->offset); +} + +static inline u32 bth_psn(struct rxe_pkt_info *pkt) +{ + return __bth_psn(pkt->hdr + pkt->offset); +} + +static inline void bth_set_psn(struct rxe_pkt_info *pkt, u32 psn) +{ + __bth_set_psn(pkt->hdr + pkt->offset, psn); +} + +static inline void bth_init(struct rxe_pkt_info *pkt, u8 opcode, int se, + int mig, int pad, u16 pkey, u32 qpn, int ack_req, + u32 psn) +{ + struct rxe_bth *bth = (struct rxe_bth *)(pkt->hdr + pkt->offset); + + bth->opcode = opcode; + bth->flags = (pad << 4) & BTH_PAD_MASK; + if (se) + bth->flags |= BTH_SE_MASK; + if (mig) + bth->flags |= BTH_MIG_MASK; + bth->pkey = cpu_to_be16(pkey); + bth->qpn = cpu_to_be32(qpn & BTH_QPN_MASK); + psn &= BTH_PSN_MASK; + if (ack_req) + psn |= BTH_ACK_MASK; + bth->apsn = cpu_to_be32(psn); +} + +/****************************************************************************** + * Reliable Datagram Extended Transport Header + ******************************************************************************/ +struct rxe_rdeth { + __be32 een; +}; + +#define RDETH_EEN_MASK (0x00ffffff) + +static inline u8 __rdeth_een(void *arg) +{ + struct rxe_rdeth *rdeth = arg; + + return RDETH_EEN_MASK & be32_to_cpu(rdeth->een); +} + +static inline void __rdeth_set_een(void *arg, u32 een) +{ + struct rxe_rdeth *rdeth = arg; + + rdeth->een = cpu_to_be32(RDETH_EEN_MASK & een); +} + +static inline u8 rdeth_een(struct rxe_pkt_info *pkt) +{ + return __rdeth_een(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_RDETH]); +} + +static inline void rdeth_set_een(struct rxe_pkt_info *pkt, u32 een) +{ + __rdeth_set_een(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_RDETH], een); +} + +/****************************************************************************** + * Datagram Extended Transport Header + ******************************************************************************/ +struct rxe_deth { + __be32 qkey; + __be32 sqp; +}; + +#define GSI_QKEY (0x80010000) +#define DETH_SQP_MASK (0x00ffffff) + +static inline u32 __deth_qkey(void *arg) +{ + struct rxe_deth *deth = arg; + + return be32_to_cpu(deth->qkey); +} + +static inline void __deth_set_qkey(void *arg, u32 qkey) +{ + struct rxe_deth *deth = arg; + + deth->qkey = cpu_to_be32(qkey); +} + +static inline u32 __deth_sqp(void *arg) +{ + struct rxe_deth *deth = arg; + + return DETH_SQP_MASK & be32_to_cpu(deth->sqp); +} + +static inline void __deth_set_sqp(void *arg, u32 sqp) +{ + struct rxe_deth *deth = arg; + + deth->sqp = cpu_to_be32(DETH_SQP_MASK & sqp); +} + +static inline u32 deth_qkey(struct rxe_pkt_info *pkt) +{ + return __deth_qkey(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_DETH]); +} + +static inline void deth_set_qkey(struct rxe_pkt_info *pkt, u32 qkey) +{ + __deth_set_qkey(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_DETH], qkey); +} + +static inline u32 deth_sqp(struct rxe_pkt_info *pkt) +{ + return __deth_sqp(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_DETH]); +} + +static inline void deth_set_sqp(struct rxe_pkt_info *pkt, u32 sqp) +{ + __deth_set_sqp(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_DETH], sqp); +} + +/****************************************************************************** + * RDMA Extended Transport Header + ******************************************************************************/ +struct rxe_reth { + __be64 va; + __be32 rkey; + __be32 len; +}; + +static inline u64 __reth_va(void *arg) +{ + struct rxe_reth *reth = arg; + + return be64_to_cpu(reth->va); +} + +static inline void __reth_set_va(void *arg, u64 va) +{ + struct rxe_reth *reth = arg; + + reth->va = cpu_to_be64(va); +} + +static inline u32 __reth_rkey(void *arg) +{ + struct rxe_reth *reth = arg; + + return be32_to_cpu(reth->rkey); +} + +static inline void __reth_set_rkey(void *arg, u32 rkey) +{ + struct rxe_reth *reth = arg; + + reth->rkey = cpu_to_be32(rkey); +} + +static inline u32 __reth_len(void *arg) +{ + struct rxe_reth *reth = arg; + + return be32_to_cpu(reth->len); +} + +static inline void __reth_set_len(void *arg, u32 len) +{ + struct rxe_reth *reth = arg; + + reth->len = cpu_to_be32(len); +} + +static inline u64 reth_va(struct rxe_pkt_info *pkt) +{ + return __reth_va(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_RETH]); +} + +static inline void reth_set_va(struct rxe_pkt_info *pkt, u64 va) +{ + __reth_set_va(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_RETH], va); +} + +static inline u32 reth_rkey(struct rxe_pkt_info *pkt) +{ + return __reth_rkey(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_RETH]); +} + +static inline void reth_set_rkey(struct rxe_pkt_info *pkt, u32 rkey) +{ + __reth_set_rkey(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_RETH], rkey); +} + +static inline u32 reth_len(struct rxe_pkt_info *pkt) +{ + return __reth_len(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_RETH]); +} + +static inline void reth_set_len(struct rxe_pkt_info *pkt, u32 len) +{ + __reth_set_len(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_RETH], len); +} + +/****************************************************************************** + * Atomic Extended Transport Header + ******************************************************************************/ +struct rxe_atmeth { + __be64 va; + __be32 rkey; + __be64 swap_add; + __be64 comp; +} __attribute__((__packed__)); + +static inline u64 __atmeth_va(void *arg) +{ + struct rxe_atmeth *atmeth = arg; + + return be64_to_cpu(atmeth->va); +} + +static inline void __atmeth_set_va(void *arg, u64 va) +{ + struct rxe_atmeth *atmeth = arg; + + atmeth->va = cpu_to_be64(va); +} + +static inline u32 __atmeth_rkey(void *arg) +{ + struct rxe_atmeth *atmeth = arg; + + return be32_to_cpu(atmeth->rkey); +} + +static inline void __atmeth_set_rkey(void *arg, u32 rkey) +{ + struct rxe_atmeth *atmeth = arg; + + atmeth->rkey = cpu_to_be32(rkey); +} + +static inline u64 __atmeth_swap_add(void *arg) +{ + struct rxe_atmeth *atmeth = arg; + + return be64_to_cpu(atmeth->swap_add); +} + +static inline void __atmeth_set_swap_add(void *arg, u64 swap_add) +{ + struct rxe_atmeth *atmeth = arg; + + atmeth->swap_add = cpu_to_be64(swap_add); +} + +static inline u64 __atmeth_comp(void *arg) +{ + struct rxe_atmeth *atmeth = arg; + + return be64_to_cpu(atmeth->comp); +} + +static inline void __atmeth_set_comp(void *arg, u64 comp) +{ + struct rxe_atmeth *atmeth = arg; + + atmeth->comp = cpu_to_be64(comp); +} + +static inline u64 atmeth_va(struct rxe_pkt_info *pkt) +{ + return __atmeth_va(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_ATMETH]); +} + +static inline void atmeth_set_va(struct rxe_pkt_info *pkt, u64 va) +{ + __atmeth_set_va(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_ATMETH], va); +} + +static inline u32 atmeth_rkey(struct rxe_pkt_info *pkt) +{ + return __atmeth_rkey(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_ATMETH]); +} + +static inline void atmeth_set_rkey(struct rxe_pkt_info *pkt, u32 rkey) +{ + __atmeth_set_rkey(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_ATMETH], rkey); +} + +static inline u64 atmeth_swap_add(struct rxe_pkt_info *pkt) +{ + return __atmeth_swap_add(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_ATMETH]); +} + +static inline void atmeth_set_swap_add(struct rxe_pkt_info *pkt, u64 swap_add) +{ + __atmeth_set_swap_add(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_ATMETH], swap_add); +} + +static inline u64 atmeth_comp(struct rxe_pkt_info *pkt) +{ + return __atmeth_comp(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_ATMETH]); +} + +static inline void atmeth_set_comp(struct rxe_pkt_info *pkt, u64 comp) +{ + __atmeth_set_comp(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_ATMETH], comp); +} + +/****************************************************************************** + * Ack Extended Transport Header + ******************************************************************************/ +struct rxe_aeth { + __be32 smsn; +}; + +#define AETH_SYN_MASK (0xff000000) +#define AETH_MSN_MASK (0x00ffffff) + +enum aeth_syndrome { + AETH_TYPE_MASK = 0xe0, + AETH_ACK = 0x00, + AETH_RNR_NAK = 0x20, + AETH_RSVD = 0x40, + AETH_NAK = 0x60, + AETH_ACK_UNLIMITED = 0x1f, + AETH_NAK_PSN_SEQ_ERROR = 0x60, + AETH_NAK_INVALID_REQ = 0x61, + AETH_NAK_REM_ACC_ERR = 0x62, + AETH_NAK_REM_OP_ERR = 0x63, + AETH_NAK_INV_RD_REQ = 0x64, +}; + +static inline u8 __aeth_syn(void *arg) +{ + struct rxe_aeth *aeth = arg; + + return (AETH_SYN_MASK & be32_to_cpu(aeth->smsn)) >> 24; +} + +static inline void __aeth_set_syn(void *arg, u8 syn) +{ + struct rxe_aeth *aeth = arg; + u32 smsn = be32_to_cpu(aeth->smsn); + + aeth->smsn = cpu_to_be32((AETH_SYN_MASK & (syn << 24)) | + (~AETH_SYN_MASK & smsn)); +} + +static inline u32 __aeth_msn(void *arg) +{ + struct rxe_aeth *aeth = arg; + + return AETH_MSN_MASK & be32_to_cpu(aeth->smsn); +} + +static inline void __aeth_set_msn(void *arg, u32 msn) +{ + struct rxe_aeth *aeth = arg; + u32 smsn = be32_to_cpu(aeth->smsn); + + aeth->smsn = cpu_to_be32((AETH_MSN_MASK & msn) | + (~AETH_MSN_MASK & smsn)); +} + +static inline u8 aeth_syn(struct rxe_pkt_info *pkt) +{ + return __aeth_syn(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_AETH]); +} + +static inline void aeth_set_syn(struct rxe_pkt_info *pkt, u8 syn) +{ + __aeth_set_syn(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_AETH], syn); +} + +static inline u32 aeth_msn(struct rxe_pkt_info *pkt) +{ + return __aeth_msn(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_AETH]); +} + +static inline void aeth_set_msn(struct rxe_pkt_info *pkt, u32 msn) +{ + __aeth_set_msn(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_AETH], msn); +} + +/****************************************************************************** + * Atomic Ack Extended Transport Header + ******************************************************************************/ +struct rxe_atmack { + __be64 orig; +}; + +static inline u64 __atmack_orig(void *arg) +{ + struct rxe_atmack *atmack = arg; + + return be64_to_cpu(atmack->orig); +} + +static inline void __atmack_set_orig(void *arg, u64 orig) +{ + struct rxe_atmack *atmack = arg; + + atmack->orig = cpu_to_be64(orig); +} + +static inline u64 atmack_orig(struct rxe_pkt_info *pkt) +{ + return __atmack_orig(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_ATMACK]); +} + +static inline void atmack_set_orig(struct rxe_pkt_info *pkt, u64 orig) +{ + __atmack_set_orig(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_ATMACK], orig); +} + +/****************************************************************************** + * Immediate Extended Transport Header + ******************************************************************************/ +struct rxe_immdt { + __be32 imm; +}; + +static inline __be32 __immdt_imm(void *arg) +{ + struct rxe_immdt *immdt = arg; + + return immdt->imm; +} + +static inline void __immdt_set_imm(void *arg, __be32 imm) +{ + struct rxe_immdt *immdt = arg; + + immdt->imm = imm; +} + +static inline __be32 immdt_imm(struct rxe_pkt_info *pkt) +{ + return __immdt_imm(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_IMMDT]); +} + +static inline void immdt_set_imm(struct rxe_pkt_info *pkt, __be32 imm) +{ + __immdt_set_imm(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_IMMDT], imm); +} + +/****************************************************************************** + * Invalidate Extended Transport Header + ******************************************************************************/ +struct rxe_ieth { + __be32 rkey; +}; + +static inline u32 __ieth_rkey(void *arg) +{ + struct rxe_ieth *ieth = arg; + + return be32_to_cpu(ieth->rkey); +} + +static inline void __ieth_set_rkey(void *arg, u32 rkey) +{ + struct rxe_ieth *ieth = arg; + + ieth->rkey = cpu_to_be32(rkey); +} + +static inline u32 ieth_rkey(struct rxe_pkt_info *pkt) +{ + return __ieth_rkey(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_IETH]); +} + +static inline void ieth_set_rkey(struct rxe_pkt_info *pkt, u32 rkey) +{ + __ieth_set_rkey(pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_IETH], rkey); +} + +enum rxe_hdr_length { + RXE_BTH_BYTES = sizeof(struct rxe_bth), + RXE_DETH_BYTES = sizeof(struct rxe_deth), + RXE_IMMDT_BYTES = sizeof(struct rxe_immdt), + RXE_RETH_BYTES = sizeof(struct rxe_reth), + RXE_AETH_BYTES = sizeof(struct rxe_aeth), + RXE_ATMACK_BYTES = sizeof(struct rxe_atmack), + RXE_ATMETH_BYTES = sizeof(struct rxe_atmeth), + RXE_IETH_BYTES = sizeof(struct rxe_ieth), + RXE_RDETH_BYTES = sizeof(struct rxe_rdeth), +}; + +static inline size_t header_size(struct rxe_pkt_info *pkt) +{ + return pkt->offset + rxe_opcode[pkt->opcode].length; +} + +static inline void *payload_addr(struct rxe_pkt_info *pkt) +{ + return pkt->hdr + pkt->offset + + rxe_opcode[pkt->opcode].offset[RXE_PAYLOAD]; +} + +static inline size_t payload_size(struct rxe_pkt_info *pkt) +{ + return pkt->paylen - rxe_opcode[pkt->opcode].offset[RXE_PAYLOAD] + - bth_pad(pkt) - RXE_ICRC_SIZE; +} + +#endif /* RXE_HDR_H */ |