Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 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; |
Eli Cohen | 8ff095e | 2008-04-16 21:01:10 -0700 | [diff] [blame] | 48 | __be32 ipoib_status; |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 49 | __be32 byte_cnt; |
| 50 | __be16 wqe_index; |
| 51 | __be16 checksum; |
Eli Cohen | 8ff095e | 2008-04-16 21:01:10 -0700 | [diff] [blame] | 52 | u8 reserved2[3]; |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 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 | |
Eli Cohen | 8ff095e | 2008-04-16 21:01:10 -0700 | [diff] [blame] | 88 | enum { |
| 89 | MLX4_CQE_IPOIB_STATUS_IPV4 = 1 << 22, |
| 90 | MLX4_CQE_IPOIB_STATUS_IPV4F = 1 << 23, |
| 91 | MLX4_CQE_IPOIB_STATUS_IPV6 = 1 << 24, |
| 92 | MLX4_CQE_IPOIB_STATUS_IPV4OPT = 1 << 25, |
| 93 | MLX4_CQE_IPOIB_STATUS_TCP = 1 << 26, |
| 94 | MLX4_CQE_IPOIB_STATUS_UDP = 1 << 27, |
| 95 | MLX4_CQE_IPOIB_STATUS_IPOK = 1 << 28, |
| 96 | }; |
| 97 | |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 98 | static inline void mlx4_cq_arm(struct mlx4_cq *cq, u32 cmd, |
| 99 | void __iomem *uar_page, |
| 100 | spinlock_t *doorbell_lock) |
| 101 | { |
| 102 | __be32 doorbell[2]; |
| 103 | u32 sn; |
| 104 | u32 ci; |
| 105 | |
| 106 | sn = cq->arm_sn & 3; |
| 107 | ci = cq->cons_index & 0xffffff; |
| 108 | |
| 109 | *cq->arm_db = cpu_to_be32(sn << 28 | cmd | ci); |
| 110 | |
| 111 | /* |
| 112 | * Make sure that the doorbell record in host memory is |
| 113 | * written before ringing the doorbell via PCI MMIO. |
| 114 | */ |
| 115 | wmb(); |
| 116 | |
| 117 | doorbell[0] = cpu_to_be32(sn << 28 | cmd | cq->cqn); |
| 118 | doorbell[1] = cpu_to_be32(ci); |
| 119 | |
| 120 | mlx4_write64(doorbell, uar_page + MLX4_CQ_DOORBELL, doorbell_lock); |
| 121 | } |
| 122 | |
| 123 | static inline void mlx4_cq_set_ci(struct mlx4_cq *cq) |
| 124 | { |
| 125 | *cq->set_ci_db = cpu_to_be32(cq->cons_index & 0xffffff); |
| 126 | } |
| 127 | |
| 128 | enum { |
| 129 | MLX4_CQ_DB_REQ_NOT_SOL = 1 << 24, |
| 130 | MLX4_CQ_DB_REQ_NOT = 2 << 24 |
| 131 | }; |
| 132 | |
Eli Cohen | 3fdcb97 | 2008-04-16 21:09:33 -0700 | [diff] [blame] | 133 | int mlx4_cq_modify(struct mlx4_dev *dev, struct mlx4_cq *cq, |
| 134 | u16 count, u16 period); |
Vladimir Sokolovsky | bbf8eed | 2008-04-16 21:09:33 -0700 | [diff] [blame] | 135 | int mlx4_cq_resize(struct mlx4_dev *dev, struct mlx4_cq *cq, |
| 136 | int entries, struct mlx4_mtt *mtt); |
Eli Cohen | 3fdcb97 | 2008-04-16 21:09:33 -0700 | [diff] [blame] | 137 | |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 138 | #endif /* MLX4_CQ_H */ |