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187 lines
4.8 KiB
187 lines
4.8 KiB
/* |
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* Copyright (c) 2007 Cisco Systems, Inc. All rights reserved. |
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* |
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* This software is available to you under a choice of one of two |
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* licenses. You may choose to be licensed under the terms of the GNU |
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* General Public License (GPL) Version 2, available from the file |
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* COPYING in the main directory of this source tree, or the |
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* OpenIB.org BSD license below: |
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* |
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* Redistribution and use in source and binary forms, with or |
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* without modification, are permitted provided that the following |
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* conditions are met: |
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* |
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* - Redistributions of source code must retain the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer. |
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* |
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* - Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer in the documentation and/or other materials |
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* provided with the distribution. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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* SOFTWARE. |
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*/ |
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#ifndef MLX4_CQ_H |
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#define MLX4_CQ_H |
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#include <linux/types.h> |
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#include <uapi/linux/if_ether.h> |
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#include <linux/mlx4/device.h> |
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#include <linux/mlx4/doorbell.h> |
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struct mlx4_cqe { |
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__be32 vlan_my_qpn; |
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__be32 immed_rss_invalid; |
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__be32 g_mlpath_rqpn; |
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__be16 sl_vid; |
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union { |
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struct { |
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__be16 rlid; |
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__be16 status; |
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u8 ipv6_ext_mask; |
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u8 badfcs_enc; |
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}; |
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u8 smac[ETH_ALEN]; |
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}; |
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__be32 byte_cnt; |
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__be16 wqe_index; |
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__be16 checksum; |
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u8 reserved[3]; |
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u8 owner_sr_opcode; |
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}; |
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struct mlx4_err_cqe { |
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__be32 my_qpn; |
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u32 reserved1[5]; |
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__be16 wqe_index; |
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u8 vendor_err_syndrome; |
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u8 syndrome; |
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u8 reserved2[3]; |
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u8 owner_sr_opcode; |
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}; |
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struct mlx4_ts_cqe { |
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__be32 vlan_my_qpn; |
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__be32 immed_rss_invalid; |
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__be32 g_mlpath_rqpn; |
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__be32 timestamp_hi; |
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__be16 status; |
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u8 ipv6_ext_mask; |
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u8 badfcs_enc; |
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__be32 byte_cnt; |
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__be16 wqe_index; |
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__be16 checksum; |
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u8 reserved; |
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__be16 timestamp_lo; |
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u8 owner_sr_opcode; |
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} __packed; |
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enum { |
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MLX4_CQE_L2_TUNNEL_IPOK = 1 << 31, |
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MLX4_CQE_CVLAN_PRESENT_MASK = 1 << 29, |
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MLX4_CQE_SVLAN_PRESENT_MASK = 1 << 30, |
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MLX4_CQE_L2_TUNNEL = 1 << 27, |
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MLX4_CQE_L2_TUNNEL_CSUM = 1 << 26, |
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MLX4_CQE_L2_TUNNEL_IPV4 = 1 << 25, |
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MLX4_CQE_QPN_MASK = 0xffffff, |
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MLX4_CQE_VID_MASK = 0xfff, |
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}; |
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enum { |
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MLX4_CQE_OWNER_MASK = 0x80, |
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MLX4_CQE_IS_SEND_MASK = 0x40, |
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MLX4_CQE_OPCODE_MASK = 0x1f |
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}; |
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enum { |
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MLX4_CQE_SYNDROME_LOCAL_LENGTH_ERR = 0x01, |
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MLX4_CQE_SYNDROME_LOCAL_QP_OP_ERR = 0x02, |
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MLX4_CQE_SYNDROME_LOCAL_PROT_ERR = 0x04, |
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MLX4_CQE_SYNDROME_WR_FLUSH_ERR = 0x05, |
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MLX4_CQE_SYNDROME_MW_BIND_ERR = 0x06, |
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MLX4_CQE_SYNDROME_BAD_RESP_ERR = 0x10, |
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MLX4_CQE_SYNDROME_LOCAL_ACCESS_ERR = 0x11, |
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MLX4_CQE_SYNDROME_REMOTE_INVAL_REQ_ERR = 0x12, |
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MLX4_CQE_SYNDROME_REMOTE_ACCESS_ERR = 0x13, |
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MLX4_CQE_SYNDROME_REMOTE_OP_ERR = 0x14, |
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MLX4_CQE_SYNDROME_TRANSPORT_RETRY_EXC_ERR = 0x15, |
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MLX4_CQE_SYNDROME_RNR_RETRY_EXC_ERR = 0x16, |
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MLX4_CQE_SYNDROME_REMOTE_ABORTED_ERR = 0x22, |
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}; |
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enum { |
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MLX4_CQE_STATUS_IPV4 = 1 << 6, |
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MLX4_CQE_STATUS_IPV4F = 1 << 7, |
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MLX4_CQE_STATUS_IPV6 = 1 << 8, |
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MLX4_CQE_STATUS_IPV4OPT = 1 << 9, |
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MLX4_CQE_STATUS_TCP = 1 << 10, |
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MLX4_CQE_STATUS_UDP = 1 << 11, |
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MLX4_CQE_STATUS_IPOK = 1 << 12, |
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}; |
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/* L4_CSUM is logically part of status, but has to checked against badfcs_enc */ |
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enum { |
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MLX4_CQE_STATUS_L4_CSUM = 1 << 2, |
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}; |
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enum { |
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MLX4_CQE_LLC = 1, |
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MLX4_CQE_SNAP = 1 << 1, |
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MLX4_CQE_BAD_FCS = 1 << 4, |
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}; |
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#define MLX4_MAX_CQ_PERIOD (BIT(16) - 1) |
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#define MLX4_MAX_CQ_COUNT (BIT(16) - 1) |
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static inline void mlx4_cq_arm(struct mlx4_cq *cq, u32 cmd, |
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void __iomem *uar_page, |
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spinlock_t *doorbell_lock) |
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{ |
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__be32 doorbell[2]; |
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u32 sn; |
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u32 ci; |
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sn = cq->arm_sn & 3; |
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ci = cq->cons_index & 0xffffff; |
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*cq->arm_db = cpu_to_be32(sn << 28 | cmd | ci); |
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/* |
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* Make sure that the doorbell record in host memory is |
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* written before ringing the doorbell via PCI MMIO. |
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*/ |
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wmb(); |
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doorbell[0] = cpu_to_be32(sn << 28 | cmd | cq->cqn); |
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doorbell[1] = cpu_to_be32(ci); |
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mlx4_write64(doorbell, uar_page + MLX4_CQ_DOORBELL, doorbell_lock); |
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} |
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static inline void mlx4_cq_set_ci(struct mlx4_cq *cq) |
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{ |
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*cq->set_ci_db = cpu_to_be32(cq->cons_index & 0xffffff); |
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} |
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enum { |
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MLX4_CQ_DB_REQ_NOT_SOL = 1 << 24, |
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MLX4_CQ_DB_REQ_NOT = 2 << 24 |
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}; |
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int mlx4_cq_modify(struct mlx4_dev *dev, struct mlx4_cq *cq, |
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u16 count, u16 period); |
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int mlx4_cq_resize(struct mlx4_dev *dev, struct mlx4_cq *cq, |
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int entries, struct mlx4_mtt *mtt); |
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#endif /* MLX4_CQ_H */
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