From 51ff17251c9c2c2e71974149d22bc73ea09c27cc Mon Sep 17 00:00:00 2001 From: Ram Amrani Date: Sat, 1 Oct 2016 21:59:57 +0300 Subject: qed: Add support for RoCE hw init This adds the backbone required for the various HW initalizations which are necessary for the qedr driver - FW notification, resource initializations, etc. Signed-off-by: Ram Amrani Signed-off-by: Yuval Mintz Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qed/qed_roce.h | 123 +++++++++++++++++++++++++++++ 1 file changed, 123 insertions(+) create mode 100644 drivers/net/ethernet/qlogic/qed/qed_roce.h (limited to 'drivers/net/ethernet/qlogic/qed/qed_roce.h') diff --git a/drivers/net/ethernet/qlogic/qed/qed_roce.h b/drivers/net/ethernet/qlogic/qed/qed_roce.h new file mode 100644 index 000000000000..e55048106a83 --- /dev/null +++ b/drivers/net/ethernet/qlogic/qed/qed_roce.h @@ -0,0 +1,123 @@ +/* QLogic qed NIC Driver + * Copyright (c) 2015-2016 QLogic Corporation + * + * 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 _QED_ROCE_H +#define _QED_ROCE_H +#include +#include +#include +#include +#include +#include +#include +#include +#include "qed.h" +#include "qed_dev_api.h" +#include "qed_hsi.h" + +#define QED_RDMA_MAX_FMR (RDMA_MAX_TIDS) +#define QED_RDMA_MAX_P_KEY (1) +#define QED_RDMA_MAX_WQE (0x7FFF) +#define QED_RDMA_MAX_SRQ_WQE_ELEM (0x7FFF) +#define QED_RDMA_PAGE_SIZE_CAPS (0xFFFFF000) +#define QED_RDMA_ACK_DELAY (15) +#define QED_RDMA_MAX_MR_SIZE (0x10000000000ULL) +#define QED_RDMA_MAX_CQS (RDMA_MAX_CQS) +#define QED_RDMA_MAX_MRS (RDMA_MAX_TIDS) +/* Add 1 for header element */ +#define QED_RDMA_MAX_SRQ_ELEM_PER_WQE (RDMA_MAX_SGE_PER_RQ_WQE + 1) +#define QED_RDMA_MAX_SGE_PER_SRQ_WQE (RDMA_MAX_SGE_PER_RQ_WQE) +#define QED_RDMA_SRQ_WQE_ELEM_SIZE (16) +#define QED_RDMA_MAX_SRQS (32 * 1024) + +#define QED_RDMA_MAX_CQE_32_BIT (0x7FFFFFFF - 1) +#define QED_RDMA_MAX_CQE_16_BIT (0x7FFF - 1) + +enum qed_rdma_toggle_bit { + QED_RDMA_TOGGLE_BIT_CLEAR = 0, + QED_RDMA_TOGGLE_BIT_SET = 1 +}; + +struct qed_bmap { + unsigned long *bitmap; + u32 max_count; +}; + +struct qed_rdma_info { + /* spin lock to protect bitmaps */ + spinlock_t lock; + + struct qed_bmap cq_map; + struct qed_bmap pd_map; + struct qed_bmap tid_map; + struct qed_bmap qp_map; + struct qed_bmap srq_map; + struct qed_bmap cid_map; + struct qed_bmap dpi_map; + struct qed_bmap toggle_bits; + struct qed_rdma_events events; + struct qed_rdma_device *dev; + struct qed_rdma_port *port; + u32 last_tid; + u8 num_cnqs; + u32 num_qps; + u32 num_mrs; + u16 queue_zone_base; + enum protocol_type proto; +}; + +int +qed_rdma_add_user(void *rdma_cxt, + struct qed_rdma_add_user_out_params *out_params); +int qed_rdma_alloc_pd(void *rdma_cxt, u16 *pd); +int qed_rdma_alloc_tid(void *rdma_cxt, u32 *tid); +int qed_rdma_deregister_tid(void *rdma_cxt, u32 tid); +void qed_rdma_free_tid(void *rdma_cxt, u32 tid); +struct qed_rdma_device *qed_rdma_query_device(void *rdma_cxt); +int +qed_rdma_register_tid(void *rdma_cxt, + struct qed_rdma_register_tid_in_params *params); +void qed_rdma_remove_user(void *rdma_cxt, u16 dpi); +int qed_rdma_start(void *p_hwfn, struct qed_rdma_start_in_params *params); +int qed_rdma_stop(void *rdma_cxt); +u32 qed_rdma_get_sb_id(void *p_hwfn, u32 rel_sb_id); +u32 qed_rdma_query_cau_timer_res(void *p_hwfn); +void qed_rdma_cnq_prod_update(void *rdma_cxt, u8 cnq_index, u16 prod); +void qed_rdma_resc_free(struct qed_hwfn *p_hwfn); +void qed_async_roce_event(struct qed_hwfn *p_hwfn, + struct event_ring_entry *p_eqe); + +#if IS_ENABLED(CONFIG_INFINIBAND_QEDR) +void qed_rdma_dpm_bar(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt); +#else +void qed_rdma_dpm_bar(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) {} +#endif +#endif -- cgit v1.2.3