[PATCH rdma-next 01/29] IB/rxe: IBA header types and methods

Moni Shoua
2016-06-02T16:57:09Z

Add declarations for data structures used to hold per opcode
and per work request opcode tables.

Signed-off-by: Kamal Heib <kamalh-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Signed-off-by: Amir Vadai <amirv-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Signed-off-by: Moni Shoua <monis-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Reviewed-by: Haggai Eran <haggaie-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
---
drivers/infiniband/hw/rxe/rxe_hdr.h | 952 ++++++++++++++++++++++++++++++++++++
1 file changed, 952 insertions(+)
create mode 100644 drivers/infiniband/hw/rxe/rxe_hdr.h

diff --git a/drivers/infiniband/hw/rxe/rxe_hdr.h b/drivers/infiniband/hw/rxe/rxe_hdr.h
new file mode 100644
index 0000000..d57b5e9
--- /dev/null
+++ b/drivers/infiniband/hw/rxe/rxe_hdr.h
@@ -0,0 +1,952 @@
+/*
+ * 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 */
+#define SKB_TO_PKT(skb) ((struct rxe_pkt_info *)(skb)->cb)
+#define PKT_TO_SKB(pkt) 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 */
--
1.8.3.1