139 lines
3.8 KiB
C
139 lines
3.8 KiB
C
/*
|
|
* 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;
|
|
__be32 ipoib_status;
|
|
__be32 byte_cnt;
|
|
__be16 wqe_index;
|
|
__be16 checksum;
|
|
u8 reserved2[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,
|
|
};
|
|
|
|
enum {
|
|
MLX4_CQE_IPOIB_STATUS_IPV4 = 1 << 22,
|
|
MLX4_CQE_IPOIB_STATUS_IPV4F = 1 << 23,
|
|
MLX4_CQE_IPOIB_STATUS_IPV6 = 1 << 24,
|
|
MLX4_CQE_IPOIB_STATUS_IPV4OPT = 1 << 25,
|
|
MLX4_CQE_IPOIB_STATUS_TCP = 1 << 26,
|
|
MLX4_CQE_IPOIB_STATUS_UDP = 1 << 27,
|
|
MLX4_CQE_IPOIB_STATUS_IPOK = 1 << 28,
|
|
};
|
|
|
|
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
|
|
};
|
|
|
|
int mlx4_cq_modify(struct mlx4_dev *dev, struct mlx4_cq *cq,
|
|
u16 count, u16 period);
|
|
int mlx4_cq_resize(struct mlx4_dev *dev, struct mlx4_cq *cq,
|
|
int entries, struct mlx4_mtt *mtt);
|
|
|
|
#endif /* MLX4_CQ_H */
|