[patch v2 03/37] add rxe_hdr.h

[rpearson-klaOcWyJdxkshyMvu7JE4pqQE7yCjDx5@public.gmane.org]

[-- Attachment #1: add-rxe_hdr.h --]
[-- Type: text/plain, Size: 33394 bytes --]

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

Signed-off-by: Bob Pearson <rpearson-klaOcWyJdxkshyMvu7JE4pqQE7yCjDx5@public.gmane.org>

---
 drivers/infiniband/hw/rxe/rxe_hdr.h | 1294 ++++++++++++++++++++++++++++++++++++
 1 file changed, 1294 insertions(+)

Index: infiniband/drivers/infiniband/hw/rxe/rxe_hdr.h
===================================================================
--- /dev/null
+++ infiniband/drivers/infiniband/hw/rxe/rxe_hdr.h
@@ -0,0 +1,1294 @@
+/*
+ * Copyright (c) 2009-2011 Mellanox Technologies Ltd. All rights reserved.
+ * Copyright (c) 2009-2011 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. */
+struct rxe_pkt_info {
+	struct rxe_dev		*rxe;		/* device that owns packet */
+	struct rxe_qp		*qp;		/* qp that owns packet */
+	u8			*hdr;		/* points to grh or 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 */
+};
+
+#define SKB_TO_PKT(skb) ((struct rxe_pkt_info *)(skb)->cb)
+#define PKT_TO_SKB(pkt) ((struct sk_buff *)((char *)(pkt)	\
+			- offsetof(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 OFED 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)
+
+/******************************************************************************
+ * Local Route Header
+ ******************************************************************************/
+struct rxe_lrh {
+	u8			vlver;		/* vl and lver */
+	u8			slnh;		/* sl and lnh */
+	__be16			dlid;
+	__be16			length;
+	__be16			slid;
+};
+
+#define LRH_LVER		(0)
+
+#define LRH_VL_MASK		(0xf0)
+#define LRH_LVER_MASK		(0x0f)
+#define LRH_SL_MASK		(0xf0)
+#define LRH_RESV2_MASK		(0x0c)
+#define LRH_LNH_MASK		(0x03)
+#define LRH_RESV5_MASK		(0xf800)
+#define LRH_LENGTH_MASK		(0x07ff)
+
+enum lrh_lnh {
+	LRH_LNH_RAW		= 0,
+	LRH_LNH_IP		= 1,
+	LRH_LNH_IBA_LOC		= 2,
+	LRH_LNH_IBA_GBL		= 3,
+};
+
+static inline u8 __lrh_vl(void *arg)
+{
+	struct rxe_lrh *lrh = arg;
+	return lrh->vlver >> 4;
+}
+
+static inline void __lrh_set_vl(void *arg, u8 vl)
+{
+	struct rxe_lrh *lrh = arg;
+	lrh->vlver = (vl << 4) | (~LRH_VL_MASK & lrh->vlver);
+}
+
+static inline u8 __lrh_lver(void *arg)
+{
+	struct rxe_lrh *lrh = arg;
+	return lrh->vlver & LRH_LVER_MASK;
+}
+
+static inline void __lrh_set_lver(void *arg, u8 lver)
+{
+	struct rxe_lrh *lrh = arg;
+	lrh->vlver = (lver & LRH_LVER_MASK) | (~LRH_LVER_MASK & lrh->vlver);
+}
+
+static inline u8 __lrh_sl(void *arg)
+{
+	struct rxe_lrh *lrh = arg;
+	return lrh->slnh >> 4;
+}
+
+static inline void __lrh_set_sl(void *arg, u8 sl)
+{
+	struct rxe_lrh *lrh = arg;
+	lrh->slnh = (sl << 4) | (~LRH_SL_MASK & lrh->slnh);
+}
+
+static inline u8 __lrh_lnh(void *arg)
+{
+	struct rxe_lrh *lrh = arg;
+	return lrh->slnh & LRH_LNH_MASK;
+}
+
+static inline void __lrh_set_lnh(void *arg, u8 lnh)
+{
+	struct rxe_lrh *lrh = arg;
+	lrh->slnh = (lnh & LRH_LNH_MASK) | (~LRH_LNH_MASK & lrh->slnh);
+}
+
+static inline u8 __lrh_dlid(void *arg)
+{
+	struct rxe_lrh *lrh = arg;
+	return be16_to_cpu(lrh->dlid);
+}
+
+static inline void __lrh_set_dlid(void *arg, u16 dlid)
+{
+	struct rxe_lrh *lrh = arg;
+	lrh->dlid = cpu_to_be16(dlid);
+}
+
+static inline u8 __lrh_length(void *arg)
+{
+	struct rxe_lrh *lrh = arg;
+	return be16_to_cpu(lrh->length) & LRH_LENGTH_MASK;
+}
+
+static inline void __lrh_set_length(void *arg, u16 length)
+{
+	struct rxe_lrh *lrh = arg;
+	u16 was = be16_to_cpu(lrh->length);
+	lrh->length = cpu_to_be16((length & LRH_LENGTH_MASK)
+			| (~LRH_LENGTH_MASK & was));
+}
+
+static inline u8 __lrh_slid(void *arg)
+{
+	struct rxe_lrh *lrh = arg;
+	return be16_to_cpu(lrh->slid);
+}
+
+static inline void __lrh_set_slid(void *arg, u16 slid)
+{
+	struct rxe_lrh *lrh = arg;
+	lrh->slid = cpu_to_be16(slid);
+}
+
+static inline void lrh_init(struct rxe_pkt_info *pkt, u8 vl, u8 sl,
+			    u8 lnh, u16 length, u16 dlid, u16 slid)
+{
+	struct rxe_lrh *lrh = (struct rxe_lrh *)pkt->hdr;
+
+	lrh->vlver = (vl << 4);
+	lrh->slnh = (sl << 4) | (lnh & LRH_LNH_MASK);
+	lrh->length = cpu_to_be16(length & LRH_LENGTH_MASK);
+	lrh->dlid = cpu_to_be16(dlid);
+	lrh->slid = cpu_to_be16(slid);
+}
+
+/******************************************************************************
+ * Global Route Header
+ ******************************************************************************/
+struct rxe_grh {
+	__be32			vflow;		/* ipver, tclass and flow */
+	__be16			paylen;
+	u8			next_hdr;
+	u8			hop_limit;
+	union ib_gid		sgid;
+	union ib_gid		dgid;
+};
+
+#define GRH_IPV6		(6)
+#define GRH_RXE_NEXT_HDR	(0x1b)
+
+#define GRH_IPVER_MASK		(0xf0000000)
+#define GRH_TCLASS_MASK		(0x0ff00000)
+#define GRH_FLOW_MASK		(0x000fffff)
+
+static inline u8 __grh_ipver(void *arg)
+{
+	struct rxe_grh *grh = arg;
+	return (GRH_IPVER_MASK & be32_to_cpu(grh->vflow)) >> 28;
+}
+
+static inline void __grh_set_ipver(void *arg, u8 ipver)
+{
+	struct rxe_grh *grh = arg;
+	u32 vflow = be32_to_cpu(grh->vflow);
+	grh->vflow = cpu_to_be32((GRH_IPVER_MASK & (ipver << 28))
+			| (~GRH_IPVER_MASK & vflow));
+}
+
+static inline u8 __grh_tclass(void *arg)
+{
+	struct rxe_grh *grh = arg;
+	return (GRH_TCLASS_MASK & be32_to_cpu(grh->vflow)) >> 20;
+}
+
+static inline void __grh_set_tclass(void *arg, u8 tclass)
+{
+	struct rxe_grh *grh = arg;
+	u32 vflow = be32_to_cpu(grh->vflow);
+	grh->vflow = cpu_to_be32((GRH_TCLASS_MASK & (tclass << 20))
+			| (~GRH_TCLASS_MASK & vflow));
+}
+
+static inline u32 __grh_flow(void *arg)
+{
+	struct rxe_grh *grh = arg;
+	return GRH_FLOW_MASK & be32_to_cpu(grh->vflow);
+}
+
+static inline void __grh_set_flow(void *arg, u32 flow)
+{
+	struct rxe_grh *grh = arg;
+	u32 vflow = be32_to_cpu(grh->vflow);
+	grh->vflow = cpu_to_be32((GRH_FLOW_MASK & flow)
+			| (~GRH_FLOW_MASK & vflow));
+}
+
+static inline void __grh_set_vflow(void *arg, u8 tclass, u32 flow)
+{
+	struct rxe_grh *grh = arg;
+	grh->vflow = cpu_to_be32((GRH_IPV6 << 28) | (tclass << 20)
+		| (flow & GRH_FLOW_MASK));
+}
+
+static inline u16 __grh_paylen(void *arg)
+{
+	struct rxe_grh *grh = arg;
+	return be16_to_cpu(grh->paylen);
+}
+
+static inline void __grh_set_paylen(void *arg, u16 paylen)
+{
+	struct rxe_grh *grh = arg;
+	grh->paylen = cpu_to_be16(paylen);
+}
+
+static inline u8 __grh_next_hdr(void *arg)
+{
+	struct rxe_grh *grh = arg;
+	return grh->next_hdr;
+}
+
+static inline void __grh_set_next_hdr(void *arg, u8 next_hdr)
+{
+	struct rxe_grh *grh = arg;
+	grh->next_hdr = next_hdr;
+}
+
+static inline u8 __grh_hop_limit(void *arg)
+{
+	struct rxe_grh *grh = arg;
+	return grh->hop_limit;
+}
+
+static inline void __grh_set_hop_limit(void *arg, u8 hop_limit)
+{
+	struct rxe_grh *grh = arg;
+	grh->hop_limit = hop_limit;
+}
+
+static inline union ib_gid *__grh_sgid(void *arg)
+{
+	struct rxe_grh *grh = arg;
+	return &grh->sgid;
+}
+
+static inline void __grh_set_sgid(void *arg, __be64 prefix, __be64 guid)
+{
+	struct rxe_grh *grh = arg;
+	grh->sgid.global.subnet_prefix = prefix;
+	grh->sgid.global.interface_id = guid;
+}
+
+static inline union ib_gid *__grh_dgid(void *arg)
+{
+	struct rxe_grh *grh = arg;
+	return &grh->dgid;
+}
+
+static inline void __grh_set_dgid(void *arg, __be64 prefix, __be64 guid)
+{
+	struct rxe_grh *grh = arg;
+	grh->dgid.global.subnet_prefix = prefix;
+	grh->dgid.global.interface_id = guid;
+}
+
+static inline u8 grh_ipver(struct rxe_pkt_info *pkt)
+{
+	return __grh_ipver(pkt->hdr);
+}
+
+static inline void grh_set_ipver(struct rxe_pkt_info *pkt, u8 ipver)
+{
+	__grh_set_ipver(pkt->hdr, ipver);
+	return;
+}
+
+static inline u8 grh_tclass(struct rxe_pkt_info *pkt)
+{
+	return __grh_tclass(pkt->hdr + pkt->offset
+		- sizeof(struct rxe_grh));
+}
+
+static inline void grh_set_tclass(struct rxe_pkt_info *pkt, u8 tclass)
+{
+	__grh_set_tclass(pkt->hdr + pkt->offset
+		- sizeof(struct rxe_grh), tclass);
+	return;
+}
+
+static inline u32 grh_flow(struct rxe_pkt_info *pkt)
+{
+	return __grh_flow(pkt->hdr + pkt->offset
+		- sizeof(struct rxe_grh));
+}
+
+static inline void grh_set_flow(struct rxe_pkt_info *pkt, u32 flow)
+{
+	__grh_set_flow(pkt->hdr + pkt->offset
+		- sizeof(struct rxe_grh), flow);
+	return;
+}
+
+static inline u16 grh_paylen(struct rxe_pkt_info *pkt)
+{
+	return __grh_paylen(pkt->hdr + pkt->offset
+		- sizeof(struct rxe_grh));
+}
+
+static inline void grh_set_paylen(struct rxe_pkt_info *pkt, u16 paylen)
+{
+	__grh_set_paylen(pkt->hdr + pkt->offset
+		- sizeof(struct rxe_grh), paylen);
+	return;
+}
+
+static inline u8 grh_next_hdr(struct rxe_pkt_info *pkt)
+{
+	return __grh_next_hdr(pkt->hdr + pkt->offset
+		- sizeof(struct rxe_grh));
+}
+
+static inline void grh_set_next_hdr(struct rxe_pkt_info *pkt, u8 next_hdr)
+{
+	__grh_set_next_hdr(pkt->hdr + pkt->offset
+		- sizeof(struct rxe_grh), next_hdr);
+	return;
+}
+
+static inline u8 grh_hop_limit(struct rxe_pkt_info *pkt)
+{
+	return __grh_hop_limit(pkt->hdr + pkt->offset
+		- sizeof(struct rxe_grh));
+}
+
+static inline void grh_set_hop_limit(struct rxe_pkt_info *pkt, u8 hop_limit)
+{
+	__grh_set_hop_limit(pkt->hdr + pkt->offset
+		- sizeof(struct rxe_grh), hop_limit);
+	return;
+}
+
+static inline union ib_gid *grh_sgid(struct rxe_pkt_info *pkt)
+{
+	return __grh_sgid(pkt->hdr + pkt->offset - sizeof(struct rxe_grh));
+}
+
+static inline void grh_set_sgid(struct rxe_pkt_info *pkt,
+	__be64 prefix, __be64 guid)
+{
+	__grh_set_sgid(pkt->hdr + pkt->offset
+		- sizeof(struct rxe_grh), prefix, guid);
+	return;
+}
+
+static inline union ib_gid *grh_dgid(struct rxe_pkt_info *pkt)
+{
+	return __grh_dgid(pkt->hdr + pkt->offset - sizeof(struct rxe_grh));
+}
+
+static inline void grh_set_dgid(struct rxe_pkt_info *pkt,
+	__be64 prefix, __be64 guid)
+{
+	__grh_set_dgid(pkt->hdr + pkt->offset
+		- sizeof(struct rxe_grh), prefix, guid);
+	return;
+}
+
+static inline void grh_init(struct rxe_pkt_info *pkt, u8 tclass, u32 flow,
+			    u16 paylen, u8 hop_limit)
+{
+	struct rxe_grh *grh = (struct rxe_grh *)pkt->hdr
+		+ pkt->offset - sizeof(struct rxe_grh);
+
+	grh->vflow = cpu_to_be32((GRH_IPV6 << 28) | (tclass << 20)
+		| (flow & GRH_FLOW_MASK));
+	grh->paylen = cpu_to_be16(paylen);
+	grh->next_hdr = GRH_RXE_NEXT_HDR;
+	grh->hop_limit = hop_limit;
+}
+
+/******************************************************************************
+ * 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 != (__constant_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 |= __constant_cpu_to_be32(BTH_FECN_MASK);
+	else
+		bth->qpn &= ~__constant_cpu_to_be32(BTH_FECN_MASK);
+}
+
+static inline int __bth_becn(void *arg)
+{
+	struct rxe_bth *bth = arg;
+	return 0 != (__constant_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 |= __constant_cpu_to_be32(BTH_BECN_MASK);
+	else
+		bth->qpn &= ~__constant_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 = __constant_cpu_to_be32(~BTH_RESV6A_MASK);
+}
+
+static inline int __bth_ack(void *arg)
+{
+	struct rxe_bth *bth = arg;
+	return 0 != (__constant_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 |= __constant_cpu_to_be32(BTH_ACK_MASK);
+	else
+		bth->apsn &= ~__constant_cpu_to_be32(BTH_ACK_MASK);
+}
+
+static inline void __bth_set_resv7(void *arg)
+{
+	struct rxe_bth *bth = arg;
+	bth->apsn &= ~__constant_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);
+	return;
+}
+
+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);
+	return;
+}
+
+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);
+	return;
+}
+
+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);
+	return;
+}
+
+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);
+	return;
+}
+
+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);
+	return;
+}
+
+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);
+	return;
+}
+
+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);
+	return;
+}
+
+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);
+	return;
+}
+
+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);
+	return;
+}
+
+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);
+	return;
+}
+
+static inline void bth_set_resv7(struct rxe_pkt_info *pkt)
+{
+	__bth_set_resv7(pkt->hdr + pkt->offset);
+	return;
+}
+
+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);
+	return;
+}
+
+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);
+	return;
+}
+
+/******************************************************************************
+ * 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);
+	return;
+}
+
+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);
+	return;
+}
+
+/******************************************************************************
+ * 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);
+	return;
+}
+
+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);
+	return;
+}
+
+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);
+	return;
+}
+
+/******************************************************************************
+ * 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);
+	return;
+}
+
+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);
+	return;
+}
+
+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);
+	return;
+}
+
+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);
+	return;
+}
+
+/******************************************************************************
+ * 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);
+	return;
+}
+
+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);
+	return;
+}
+
+/******************************************************************************
+ * 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);
+	return;
+}
+
+/******************************************************************************
+ * 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);
+	return;
+}
+
+/******************************************************************************
+ * Invalid 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);
+	return;
+}
+
+enum rxe_hdr_length {
+	RXE_LRH_BYTES		= sizeof(struct rxe_lrh),
+	RXE_GRH_BYTES		= sizeof(struct rxe_grh),
+	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 */


--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html