Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 475 insertions, 0 deletions

diff --git a/kernel/include/linux/mlx4/qp.h b/kernel/include/linux/mlx4/qp.h
new file mode 100644
index 000000000..6fed539e5
--- /dev/null
+++ b/kernel/include/linux/mlx4/qp.h
@@ -0,0 +1,475 @@
+/*
+ * Copyright (c) 2007 Cisco Systems, 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 MLX4_QP_H
+#define MLX4_QP_H
+
+#include <linux/types.h>
+#include <linux/if_ether.h>
+
+#include <linux/mlx4/device.h>
+
+#define MLX4_INVALID_LKEY	0x100
+
+enum mlx4_qp_optpar {
+	MLX4_QP_OPTPAR_ALT_ADDR_PATH		= 1 << 0,
+	MLX4_QP_OPTPAR_RRE			= 1 << 1,
+	MLX4_QP_OPTPAR_RAE			= 1 << 2,
+	MLX4_QP_OPTPAR_RWE			= 1 << 3,
+	MLX4_QP_OPTPAR_PKEY_INDEX		= 1 << 4,
+	MLX4_QP_OPTPAR_Q_KEY			= 1 << 5,
+	MLX4_QP_OPTPAR_RNR_TIMEOUT		= 1 << 6,
+	MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH	= 1 << 7,
+	MLX4_QP_OPTPAR_SRA_MAX			= 1 << 8,
+	MLX4_QP_OPTPAR_RRA_MAX			= 1 << 9,
+	MLX4_QP_OPTPAR_PM_STATE			= 1 << 10,
+	MLX4_QP_OPTPAR_RETRY_COUNT		= 1 << 12,
+	MLX4_QP_OPTPAR_RNR_RETRY		= 1 << 13,
+	MLX4_QP_OPTPAR_ACK_TIMEOUT		= 1 << 14,
+	MLX4_QP_OPTPAR_SCHED_QUEUE		= 1 << 16,
+	MLX4_QP_OPTPAR_COUNTER_INDEX		= 1 << 20,
+	MLX4_QP_OPTPAR_VLAN_STRIPPING		= 1 << 21,
+};
+
+enum mlx4_qp_state {
+	MLX4_QP_STATE_RST			= 0,
+	MLX4_QP_STATE_INIT			= 1,
+	MLX4_QP_STATE_RTR			= 2,
+	MLX4_QP_STATE_RTS			= 3,
+	MLX4_QP_STATE_SQER			= 4,
+	MLX4_QP_STATE_SQD			= 5,
+	MLX4_QP_STATE_ERR			= 6,
+	MLX4_QP_STATE_SQ_DRAINING		= 7,
+	MLX4_QP_NUM_STATE
+};
+
+enum {
+	MLX4_QP_ST_RC				= 0x0,
+	MLX4_QP_ST_UC				= 0x1,
+	MLX4_QP_ST_RD				= 0x2,
+	MLX4_QP_ST_UD				= 0x3,
+	MLX4_QP_ST_XRC				= 0x6,
+	MLX4_QP_ST_MLX				= 0x7
+};
+
+enum {
+	MLX4_QP_PM_MIGRATED			= 0x3,
+	MLX4_QP_PM_ARMED			= 0x0,
+	MLX4_QP_PM_REARM			= 0x1
+};
+
+enum {
+	/* params1 */
+	MLX4_QP_BIT_SRE				= 1 << 15,
+	MLX4_QP_BIT_SWE				= 1 << 14,
+	MLX4_QP_BIT_SAE				= 1 << 13,
+	/* params2 */
+	MLX4_QP_BIT_RRE				= 1 << 15,
+	MLX4_QP_BIT_RWE				= 1 << 14,
+	MLX4_QP_BIT_RAE				= 1 << 13,
+	MLX4_QP_BIT_FPP				= 1 <<	3,
+	MLX4_QP_BIT_RIC				= 1 <<	4,
+};
+
+enum {
+	MLX4_RSS_HASH_XOR			= 0,
+	MLX4_RSS_HASH_TOP			= 1,
+
+	MLX4_RSS_UDP_IPV6			= 1 << 0,
+	MLX4_RSS_UDP_IPV4			= 1 << 1,
+	MLX4_RSS_TCP_IPV6			= 1 << 2,
+	MLX4_RSS_IPV6				= 1 << 3,
+	MLX4_RSS_TCP_IPV4			= 1 << 4,
+	MLX4_RSS_IPV4				= 1 << 5,
+
+	MLX4_RSS_BY_OUTER_HEADERS		= 0 << 6,
+	MLX4_RSS_BY_INNER_HEADERS		= 2 << 6,
+	MLX4_RSS_BY_INNER_HEADERS_IPONLY	= 3 << 6,
+
+	/* offset of mlx4_rss_context within mlx4_qp_context.pri_path */
+	MLX4_RSS_OFFSET_IN_QPC_PRI_PATH		= 0x24,
+	/* offset of being RSS indirection QP within mlx4_qp_context.flags */
+	MLX4_RSS_QPC_FLAG_OFFSET		= 13,
+};
+
+#define MLX4_EN_RSS_KEY_SIZE 40
+
+struct mlx4_rss_context {
+	__be32			base_qpn;
+	__be32			default_qpn;
+	u16			reserved;
+	u8			hash_fn;
+	u8			flags;
+	__be32			rss_key[MLX4_EN_RSS_KEY_SIZE / sizeof(__be32)];
+	__be32			base_qpn_udp;
+};
+
+struct mlx4_qp_path {
+	u8			fl;
+	u8			vlan_control;
+	u8			disable_pkey_check;
+	u8			pkey_index;
+	u8			counter_index;
+	u8			grh_mylmc;
+	__be16			rlid;
+	u8			ackto;
+	u8			mgid_index;
+	u8			static_rate;
+	u8			hop_limit;
+	__be32			tclass_flowlabel;
+	u8			rgid[16];
+	u8			sched_queue;
+	u8			vlan_index;
+	u8			feup;
+	u8			fvl_rx;
+	u8			reserved4[2];
+	u8			dmac[ETH_ALEN];
+};
+
+enum { /* fl */
+	MLX4_FL_CV      = 1 << 6,
+	MLX4_FL_ETH_HIDE_CQE_VLAN       = 1 << 2
+};
+enum { /* vlan_control */
+	MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED	= 1 << 6,
+	MLX4_VLAN_CTRL_ETH_TX_BLOCK_PRIO_TAGGED	= 1 << 5, /* 802.1p priority tag */
+	MLX4_VLAN_CTRL_ETH_TX_BLOCK_UNTAGGED	= 1 << 4,
+	MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED	= 1 << 2,
+	MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED	= 1 << 1, /* 802.1p priority tag */
+	MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED	= 1 << 0
+};
+
+enum { /* feup */
+	MLX4_FEUP_FORCE_ETH_UP          = 1 << 6, /* force Eth UP */
+	MLX4_FSM_FORCE_ETH_SRC_MAC      = 1 << 5, /* force Source MAC */
+	MLX4_FVL_FORCE_ETH_VLAN         = 1 << 3  /* force Eth vlan */
+};
+
+enum { /* fvl_rx */
+	MLX4_FVL_RX_FORCE_ETH_VLAN      = 1 << 0 /* enforce Eth rx vlan */
+};
+
+struct mlx4_qp_context {
+	__be32			flags;
+	__be32			pd;
+	u8			mtu_msgmax;
+	u8			rq_size_stride;
+	u8			sq_size_stride;
+	u8			rlkey;
+	__be32			usr_page;
+	__be32			local_qpn;
+	__be32			remote_qpn;
+	struct			mlx4_qp_path pri_path;
+	struct			mlx4_qp_path alt_path;
+	__be32			params1;
+	u32			reserved1;
+	__be32			next_send_psn;
+	__be32			cqn_send;
+	u32			reserved2[2];
+	__be32			last_acked_psn;
+	__be32			ssn;
+	__be32			params2;
+	__be32			rnr_nextrecvpsn;
+	__be32			xrcd;
+	__be32			cqn_recv;
+	__be64			db_rec_addr;
+	__be32			qkey;
+	__be32			srqn;
+	__be32			msn;
+	__be16			rq_wqe_counter;
+	__be16			sq_wqe_counter;
+	u32			reserved3;
+	__be16			rate_limit_params;
+	u8			reserved4;
+	u8			qos_vport;
+	__be32			param3;
+	__be32			nummmcpeers_basemkey;
+	u8			log_page_size;
+	u8			reserved5[2];
+	u8			mtt_base_addr_h;
+	__be32			mtt_base_addr_l;
+	u32			reserved6[10];
+};
+
+struct mlx4_update_qp_context {
+	__be64			qp_mask;
+	__be64			primary_addr_path_mask;
+	__be64			secondary_addr_path_mask;
+	u64			reserved1;
+	struct mlx4_qp_context	qp_context;
+	u64			reserved2[58];
+};
+
+enum {
+	MLX4_UPD_QP_MASK_PM_STATE	= 32,
+	MLX4_UPD_QP_MASK_VSD		= 33,
+	MLX4_UPD_QP_MASK_QOS_VPP	= 34,
+	MLX4_UPD_QP_MASK_RATE_LIMIT	= 35,
+};
+
+enum {
+	MLX4_UPD_QP_PATH_MASK_PKEY_INDEX		= 0 + 32,
+	MLX4_UPD_QP_PATH_MASK_FSM			= 1 + 32,
+	MLX4_UPD_QP_PATH_MASK_MAC_INDEX			= 2 + 32,
+	MLX4_UPD_QP_PATH_MASK_FVL			= 3 + 32,
+	MLX4_UPD_QP_PATH_MASK_CV			= 4 + 32,
+	MLX4_UPD_QP_PATH_MASK_VLAN_INDEX		= 5 + 32,
+	MLX4_UPD_QP_PATH_MASK_ETH_HIDE_CQE_VLAN		= 6 + 32,
+	MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_UNTAGGED	= 7 + 32,
+	MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_1P		= 8 + 32,
+	MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_TAGGED	= 9 + 32,
+	MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_UNTAGGED	= 10 + 32,
+	MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_1P		= 11 + 32,
+	MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_TAGGED	= 12 + 32,
+	MLX4_UPD_QP_PATH_MASK_FEUP			= 13 + 32,
+	MLX4_UPD_QP_PATH_MASK_SCHED_QUEUE		= 14 + 32,
+	MLX4_UPD_QP_PATH_MASK_IF_COUNTER_INDEX		= 15 + 32,
+	MLX4_UPD_QP_PATH_MASK_FVL_RX			= 16 + 32,
+};
+
+enum { /* param3 */
+	MLX4_STRIP_VLAN = 1 << 30
+};
+
+/* Which firmware version adds support for NEC (NoErrorCompletion) bit */
+#define MLX4_FW_VER_WQE_CTRL_NEC mlx4_fw_ver(2, 2, 232)
+
+enum {
+	MLX4_WQE_CTRL_NEC		= 1 << 29,
+	MLX4_WQE_CTRL_IIP		= 1 << 28,
+	MLX4_WQE_CTRL_ILP		= 1 << 27,
+	MLX4_WQE_CTRL_FENCE		= 1 << 6,
+	MLX4_WQE_CTRL_CQ_UPDATE		= 3 << 2,
+	MLX4_WQE_CTRL_SOLICITED		= 1 << 1,
+	MLX4_WQE_CTRL_IP_CSUM		= 1 << 4,
+	MLX4_WQE_CTRL_TCP_UDP_CSUM	= 1 << 5,
+	MLX4_WQE_CTRL_INS_VLAN		= 1 << 6,
+	MLX4_WQE_CTRL_STRONG_ORDER	= 1 << 7,
+	MLX4_WQE_CTRL_FORCE_LOOPBACK	= 1 << 0,
+};
+
+struct mlx4_wqe_ctrl_seg {
+	__be32			owner_opcode;
+	union {
+		struct {
+			__be16			vlan_tag;
+			u8			ins_vlan;
+			u8			fence_size;
+		};
+		__be32			bf_qpn;
+	};
+	/*
+	 * High 24 bits are SRC remote buffer; low 8 bits are flags:
+	 * [7]   SO (strong ordering)
+	 * [5]   TCP/UDP checksum
+	 * [4]   IP checksum
+	 * [3:2] C (generate completion queue entry)
+	 * [1]   SE (solicited event)
+	 * [0]   FL (force loopback)
+	 */
+	union {
+		__be32			srcrb_flags;
+		__be16			srcrb_flags16[2];
+	};
+	/*
+	 * imm is immediate data for send/RDMA write w/ immediate;
+	 * also invalidation key for send with invalidate; input
+	 * modifier for WQEs on CCQs.
+	 */
+	__be32			imm;
+};
+
+enum {
+	MLX4_WQE_MLX_VL15	= 1 << 17,
+	MLX4_WQE_MLX_SLR	= 1 << 16
+};
+
+struct mlx4_wqe_mlx_seg {
+	u8			owner;
+	u8			reserved1[2];
+	u8			opcode;
+	__be16			sched_prio;
+	u8			reserved2;
+	u8			size;
+	/*
+	 * [17]    VL15
+	 * [16]    SLR
+	 * [15:12] static rate
+	 * [11:8]  SL
+	 * [4]     ICRC
+	 * [3:2]   C
+	 * [0]     FL (force loopback)
+	 */
+	__be32			flags;
+	__be16			rlid;
+	u16			reserved3;
+};
+
+struct mlx4_wqe_datagram_seg {
+	__be32			av[8];
+	__be32			dqpn;
+	__be32			qkey;
+	__be16			vlan;
+	u8			mac[ETH_ALEN];
+};
+
+struct mlx4_wqe_lso_seg {
+	__be32			mss_hdr_size;
+	__be32			header[0];
+};
+
+enum mlx4_wqe_bind_seg_flags2 {
+	MLX4_WQE_BIND_ZERO_BASED = (1 << 30),
+	MLX4_WQE_BIND_TYPE_2     = (1 << 31),
+};
+
+struct mlx4_wqe_bind_seg {
+	__be32			flags1;
+	__be32			flags2;
+	__be32			new_rkey;
+	__be32			lkey;
+	__be64			addr;
+	__be64			length;
+};
+
+enum {
+	MLX4_WQE_FMR_PERM_LOCAL_READ	= 1 << 27,
+	MLX4_WQE_FMR_PERM_LOCAL_WRITE	= 1 << 28,
+	MLX4_WQE_FMR_AND_BIND_PERM_REMOTE_READ	= 1 << 29,
+	MLX4_WQE_FMR_AND_BIND_PERM_REMOTE_WRITE	= 1 << 30,
+	MLX4_WQE_FMR_AND_BIND_PERM_ATOMIC	= 1 << 31
+};
+
+struct mlx4_wqe_fmr_seg {
+	__be32			flags;
+	__be32			mem_key;
+	__be64			buf_list;
+	__be64			start_addr;
+	__be64			reg_len;
+	__be32			offset;
+	__be32			page_size;
+	u32			reserved[2];
+};
+
+struct mlx4_wqe_fmr_ext_seg {
+	u8			flags;
+	u8			reserved;
+	__be16			app_mask;
+	__be16			wire_app_tag;
+	__be16			mem_app_tag;
+	__be32			wire_ref_tag_base;
+	__be32			mem_ref_tag_base;
+};
+
+struct mlx4_wqe_local_inval_seg {
+	u64			reserved1;
+	__be32			mem_key;
+	u32			reserved2;
+	u64			reserved3[2];
+};
+
+struct mlx4_wqe_raddr_seg {
+	__be64			raddr;
+	__be32			rkey;
+	u32			reserved;
+};
+
+struct mlx4_wqe_atomic_seg {
+	__be64			swap_add;
+	__be64			compare;
+};
+
+struct mlx4_wqe_masked_atomic_seg {
+	__be64			swap_add;
+	__be64			compare;
+	__be64			swap_add_mask;
+	__be64			compare_mask;
+};
+
+struct mlx4_wqe_data_seg {
+	__be32			byte_count;
+	__be32			lkey;
+	__be64			addr;
+};
+
+enum {
+	MLX4_INLINE_ALIGN	= 64,
+	MLX4_INLINE_SEG		= 1 << 31,
+};
+
+struct mlx4_wqe_inline_seg {
+	__be32			byte_count;
+};
+
+enum mlx4_update_qp_attr {
+	MLX4_UPDATE_QP_SMAC		= 1 << 0,
+	MLX4_UPDATE_QP_VSD		= 1 << 1,
+	MLX4_UPDATE_QP_RATE_LIMIT	= 1 << 2,
+	MLX4_UPDATE_QP_QOS_VPORT	= 1 << 3,
+	MLX4_UPDATE_QP_SUPPORTED_ATTRS	= (1 << 4) - 1
+};
+
+enum mlx4_update_qp_params_flags {
+	MLX4_UPDATE_QP_PARAMS_FLAGS_VSD_ENABLE		= 1 << 0,
+};
+
+struct mlx4_update_qp_params {
+	u8	smac_index;
+	u8	qos_vport;
+	u32	flags;
+	u16	rate_unit;
+	u16	rate_val;
+};
+
+int mlx4_update_qp(struct mlx4_dev *dev, u32 qpn,
+		   enum mlx4_update_qp_attr attr,
+		   struct mlx4_update_qp_params *params);
+int mlx4_qp_modify(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
+		   enum mlx4_qp_state cur_state, enum mlx4_qp_state new_state,
+		   struct mlx4_qp_context *context, enum mlx4_qp_optpar optpar,
+		   int sqd_event, struct mlx4_qp *qp);
+
+int mlx4_qp_query(struct mlx4_dev *dev, struct mlx4_qp *qp,
+		  struct mlx4_qp_context *context);
+
+int mlx4_qp_to_ready(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
+		     struct mlx4_qp_context *context,
+		     struct mlx4_qp *qp, enum mlx4_qp_state *qp_state);
+
+static inline struct mlx4_qp *__mlx4_qp_lookup(struct mlx4_dev *dev, u32 qpn)
+{
+	return radix_tree_lookup(&dev->qp_table_tree, qpn & (dev->caps.num_qps - 1));
+}
+
+void mlx4_qp_remove(struct mlx4_dev *dev, struct mlx4_qp *qp);
+
+#endif /* MLX4_QP_H */