1 files changed, 123 insertions, 0 deletions
diff --git a/include/linux/mlx4/cq.h b/include/linux/mlx4/cq.h
new file mode 100644
index 000000000000..0181e0a57cbf
--- /dev/null
+++ b/include/linux/mlx4/cq.h
@@ -0,0 +1,123 @@
+/*
+ * 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_CQ_H
+#define MLX4_CQ_H
+#include <linux/types.h>
+#include <linux/mlx4/device.h>
+#include <linux/mlx4/doorbell.h>
+struct mlx4_cqe {
+        __be32                  my_qpn;
+        __be32                  immed_rss_invalid;
+        __be32                  g_mlpath_rqpn;
+        u8                      sl;
+        u8                      reserved1;
+        __be16                  rlid;
+        u32                     reserved2;
+        __be32                  byte_cnt;
+        __be16                  wqe_index;
+        __be16                  checksum;
+        u8                      reserved3[3];
+        u8                      owner_sr_opcode;
+};
+struct mlx4_err_cqe {
+        __be32                  my_qpn;
+        u32                     reserved1[5];
+        __be16                  wqe_index;
+        u8                      vendor_err_syndrome;
+        u8                      syndrome;
+        u8                      reserved2[3];
+        u8                      owner_sr_opcode;
+};
+enum {
+        MLX4_CQE_OWNER_MASK     = 0x80,
+        MLX4_CQE_IS_SEND_MASK   = 0x40,
+        MLX4_CQE_OPCODE_MASK    = 0x1f
+};
+enum {
+        MLX4_CQE_SYNDROME_LOCAL_LENGTH_ERR              = 0x01,
+        MLX4_CQE_SYNDROME_LOCAL_QP_OP_ERR               = 0x02,
+        MLX4_CQE_SYNDROME_LOCAL_PROT_ERR                = 0x04,
+        MLX4_CQE_SYNDROME_WR_FLUSH_ERR                  = 0x05,
+        MLX4_CQE_SYNDROME_MW_BIND_ERR                   = 0x06,
+        MLX4_CQE_SYNDROME_BAD_RESP_ERR                  = 0x10,
+        MLX4_CQE_SYNDROME_LOCAL_ACCESS_ERR              = 0x11,
+        MLX4_CQE_SYNDROME_REMOTE_INVAL_REQ_ERR          = 0x12,
+        MLX4_CQE_SYNDROME_REMOTE_ACCESS_ERR             = 0x13,
+        MLX4_CQE_SYNDROME_REMOTE_OP_ERR                 = 0x14,
+        MLX4_CQE_SYNDROME_TRANSPORT_RETRY_EXC_ERR       = 0x15,
+        MLX4_CQE_SYNDROME_RNR_RETRY_EXC_ERR             = 0x16,
+        MLX4_CQE_SYNDROME_REMOTE_ABORTED_ERR            = 0x22,
+};
+static inline void mlx4_cq_arm(struct mlx4_cq *cq, u32 cmd,
+                               void __iomem *uar_page,
+                               spinlock_t *doorbell_lock)
+{
+        __be32 doorbell[2];
+        u32 sn;
+        u32 ci;
+        sn = cq->arm_sn & 3;
+        ci = cq->cons_index & 0xffffff;
+        *cq->arm_db = cpu_to_be32(sn << 28 | cmd | ci);
+        /*
+         * Make sure that the doorbell record in host memory is
+         * written before ringing the doorbell via PCI MMIO.
+         */
+        wmb();
+        doorbell[0] = cpu_to_be32(sn << 28 | cmd | cq->cqn);
+        doorbell[1] = cpu_to_be32(ci);
+        mlx4_write64(doorbell, uar_page + MLX4_CQ_DOORBELL, doorbell_lock);
+}
+static inline void mlx4_cq_set_ci(struct mlx4_cq *cq)
+{
+        *cq->set_ci_db = cpu_to_be32(cq->cons_index & 0xffffff);
+}
+enum {
+        MLX4_CQ_DB_REQ_NOT_SOL          = 1 << 24,
+        MLX4_CQ_DB_REQ_NOT              = 2 << 24
+};
+#endif /* MLX4_CQ_H */

diff --git a/include/linux/mlx4/cq.h b/include/linux/mlx4/cq.h new file mode 100644 index 000000000000..0181e0a57cbf --- /dev/null +++ b/include/linux/mlx4/cq.h
@@ -0,0 +1,123 @@
	1	/*
	2	* Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
	3	*
	4	* This software is available to you under a choice of one of two
	5	* licenses. You may choose to be licensed under the terms of the GNU
	6	* General Public License (GPL) Version 2, available from the file
	7	* COPYING in the main directory of this source tree, or the
	8	* OpenIB.org BSD license below:
	9	*
	10	* Redistribution and use in source and binary forms, with or
	11	* without modification, are permitted provided that the following
	12	* conditions are met:
	13	*
	14	* - Redistributions of source code must retain the above
	15	* copyright notice, this list of conditions and the following
	16	* disclaimer.
	17	*
	18	* - Redistributions in binary form must reproduce the above
	19	* copyright notice, this list of conditions and the following
	20	* disclaimer in the documentation and/or other materials
	21	* provided with the distribution.
	22	*
	23	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	24	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	25	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	26	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
	27	* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
	28	* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	29	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	30	* SOFTWARE.
	31	*/
	32
	33	#ifndef MLX4_CQ_H
	34	#define MLX4_CQ_H
	35
	36	#include <linux/types.h>
	37
	38	#include <linux/mlx4/device.h>
	39	#include <linux/mlx4/doorbell.h>
	40
	41	struct mlx4_cqe {
	42	__be32 my_qpn;
	43	__be32 immed_rss_invalid;
	44	__be32 g_mlpath_rqpn;
	45	u8 sl;
	46	u8 reserved1;
	47	__be16 rlid;
	48	u32 reserved2;
	49	__be32 byte_cnt;
	50	__be16 wqe_index;
	51	__be16 checksum;
	52	u8 reserved3[3];
	53	u8 owner_sr_opcode;
	54	};
	55
	56	struct mlx4_err_cqe {
	57	__be32 my_qpn;
	58	u32 reserved1[5];
	59	__be16 wqe_index;
	60	u8 vendor_err_syndrome;
	61	u8 syndrome;
	62	u8 reserved2[3];
	63	u8 owner_sr_opcode;
	64	};
	65
	66	enum {
	67	MLX4_CQE_OWNER_MASK = 0x80,
	68	MLX4_CQE_IS_SEND_MASK = 0x40,
	69	MLX4_CQE_OPCODE_MASK = 0x1f
	70	};
	71
	72	enum {
	73	MLX4_CQE_SYNDROME_LOCAL_LENGTH_ERR = 0x01,
	74	MLX4_CQE_SYNDROME_LOCAL_QP_OP_ERR = 0x02,
	75	MLX4_CQE_SYNDROME_LOCAL_PROT_ERR = 0x04,
	76	MLX4_CQE_SYNDROME_WR_FLUSH_ERR = 0x05,
	77	MLX4_CQE_SYNDROME_MW_BIND_ERR = 0x06,
	78	MLX4_CQE_SYNDROME_BAD_RESP_ERR = 0x10,
	79	MLX4_CQE_SYNDROME_LOCAL_ACCESS_ERR = 0x11,
	80	MLX4_CQE_SYNDROME_REMOTE_INVAL_REQ_ERR = 0x12,
	81	MLX4_CQE_SYNDROME_REMOTE_ACCESS_ERR = 0x13,
	82	MLX4_CQE_SYNDROME_REMOTE_OP_ERR = 0x14,
	83	MLX4_CQE_SYNDROME_TRANSPORT_RETRY_EXC_ERR = 0x15,
	84	MLX4_CQE_SYNDROME_RNR_RETRY_EXC_ERR = 0x16,
	85	MLX4_CQE_SYNDROME_REMOTE_ABORTED_ERR = 0x22,
	86	};
	87
	88	static inline void mlx4_cq_arm(struct mlx4_cq *cq, u32 cmd,
	89	void __iomem *uar_page,
	90	spinlock_t *doorbell_lock)
	91	{
	92	__be32 doorbell[2];
	93	u32 sn;
	94	u32 ci;
	95
	96	sn = cq->arm_sn & 3;
	97	ci = cq->cons_index & 0xffffff;
	98
	99	*cq->arm_db = cpu_to_be32(sn << 28 \| cmd \| ci);
	100
	101	/*
	102	* Make sure that the doorbell record in host memory is
	103	* written before ringing the doorbell via PCI MMIO.
	104	*/
	105	wmb();
	106
	107	doorbell[0] = cpu_to_be32(sn << 28 \| cmd \| cq->cqn);
	108	doorbell[1] = cpu_to_be32(ci);
	109
	110	mlx4_write64(doorbell, uar_page + MLX4_CQ_DOORBELL, doorbell_lock);
	111	}
	112
	113	static inline void mlx4_cq_set_ci(struct mlx4_cq *cq)
	114	{
	115	*cq->set_ci_db = cpu_to_be32(cq->cons_index & 0xffffff);
	116	}
	117
	118	enum {
	119	MLX4_CQ_DB_REQ_NOT_SOL = 1 << 24,
	120	MLX4_CQ_DB_REQ_NOT = 2 << 24
	121	};
	122
	123	#endif /* MLX4_CQ_H */