f4fd0b224d
Add a num_comp_vectors member to struct ib_device and extend ib_create_cq() to pass in a comp_vector parameter -- this parallels the userspace libibverbs API. Update all hardware drivers to set num_comp_vectors to 1 and have all ULPs pass 0 for the comp_vector value. Pass the value of num_comp_vectors to userspace rather than hard-coding a value of 1. We want multiple CQ event vector support (via MSI-X or similar for adapters that can generate multiple interrupts), but it's not clear how many vectors we want, or how we want to deal with policy issues such as how to decide which vector to use or how to set up interrupt affinity. This patch is useful for experimenting, since no core changes will be necessary when updating a driver to support multiple vectors, and we know that we want to make at least these changes anyway. Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
183 lines
5.9 KiB
C
183 lines
5.9 KiB
C
/*
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* IBM eServer eHCA Infiniband device driver for Linux on POWER
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*
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* Function definitions for internal functions
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*
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* Authors: Heiko J Schick <schickhj@de.ibm.com>
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* Dietmar Decker <ddecker@de.ibm.com>
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*
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* Copyright (c) 2005 IBM Corporation
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*
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* All rights reserved.
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*
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* This source code is distributed under a dual license of GPL v2.0 and OpenIB
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* BSD.
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*
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* OpenIB BSD License
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials
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* provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __EHCA_IVERBS_H__
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#define __EHCA_IVERBS_H__
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#include "ehca_classes.h"
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int ehca_query_device(struct ib_device *ibdev, struct ib_device_attr *props);
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int ehca_query_port(struct ib_device *ibdev, u8 port,
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struct ib_port_attr *props);
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int ehca_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 * pkey);
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int ehca_query_gid(struct ib_device *ibdev, u8 port, int index,
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union ib_gid *gid);
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int ehca_modify_port(struct ib_device *ibdev, u8 port, int port_modify_mask,
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struct ib_port_modify *props);
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struct ib_pd *ehca_alloc_pd(struct ib_device *device,
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struct ib_ucontext *context,
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struct ib_udata *udata);
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int ehca_dealloc_pd(struct ib_pd *pd);
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struct ib_ah *ehca_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr);
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int ehca_modify_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr);
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int ehca_query_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr);
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int ehca_destroy_ah(struct ib_ah *ah);
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struct ib_mr *ehca_get_dma_mr(struct ib_pd *pd, int mr_access_flags);
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struct ib_mr *ehca_reg_phys_mr(struct ib_pd *pd,
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struct ib_phys_buf *phys_buf_array,
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int num_phys_buf,
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int mr_access_flags, u64 *iova_start);
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struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd,
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struct ib_umem *region,
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int mr_access_flags, struct ib_udata *udata);
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int ehca_rereg_phys_mr(struct ib_mr *mr,
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int mr_rereg_mask,
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struct ib_pd *pd,
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struct ib_phys_buf *phys_buf_array,
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int num_phys_buf, int mr_access_flags, u64 *iova_start);
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int ehca_query_mr(struct ib_mr *mr, struct ib_mr_attr *mr_attr);
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int ehca_dereg_mr(struct ib_mr *mr);
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struct ib_mw *ehca_alloc_mw(struct ib_pd *pd);
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int ehca_bind_mw(struct ib_qp *qp, struct ib_mw *mw,
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struct ib_mw_bind *mw_bind);
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int ehca_dealloc_mw(struct ib_mw *mw);
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struct ib_fmr *ehca_alloc_fmr(struct ib_pd *pd,
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int mr_access_flags,
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struct ib_fmr_attr *fmr_attr);
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int ehca_map_phys_fmr(struct ib_fmr *fmr,
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u64 *page_list, int list_len, u64 iova);
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int ehca_unmap_fmr(struct list_head *fmr_list);
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int ehca_dealloc_fmr(struct ib_fmr *fmr);
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enum ehca_eq_type {
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EHCA_EQ = 0, /* Event Queue */
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EHCA_NEQ /* Notification Event Queue */
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};
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int ehca_create_eq(struct ehca_shca *shca, struct ehca_eq *eq,
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enum ehca_eq_type type, const u32 length);
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int ehca_destroy_eq(struct ehca_shca *shca, struct ehca_eq *eq);
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void *ehca_poll_eq(struct ehca_shca *shca, struct ehca_eq *eq);
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struct ib_cq *ehca_create_cq(struct ib_device *device, int cqe, int comp_vector,
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struct ib_ucontext *context,
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struct ib_udata *udata);
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int ehca_destroy_cq(struct ib_cq *cq);
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int ehca_resize_cq(struct ib_cq *cq, int cqe, struct ib_udata *udata);
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int ehca_poll_cq(struct ib_cq *cq, int num_entries, struct ib_wc *wc);
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int ehca_peek_cq(struct ib_cq *cq, int wc_cnt);
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int ehca_req_notify_cq(struct ib_cq *cq, enum ib_cq_notify cq_notify);
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struct ib_qp *ehca_create_qp(struct ib_pd *pd,
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struct ib_qp_init_attr *init_attr,
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struct ib_udata *udata);
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int ehca_destroy_qp(struct ib_qp *qp);
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int ehca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask,
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struct ib_udata *udata);
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int ehca_query_qp(struct ib_qp *qp, struct ib_qp_attr *qp_attr,
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int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr);
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int ehca_post_send(struct ib_qp *qp, struct ib_send_wr *send_wr,
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struct ib_send_wr **bad_send_wr);
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int ehca_post_recv(struct ib_qp *qp, struct ib_recv_wr *recv_wr,
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struct ib_recv_wr **bad_recv_wr);
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u64 ehca_define_sqp(struct ehca_shca *shca, struct ehca_qp *ibqp,
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struct ib_qp_init_attr *qp_init_attr);
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int ehca_attach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid);
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int ehca_detach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid);
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struct ib_ucontext *ehca_alloc_ucontext(struct ib_device *device,
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struct ib_udata *udata);
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int ehca_dealloc_ucontext(struct ib_ucontext *context);
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int ehca_mmap(struct ib_ucontext *context, struct vm_area_struct *vma);
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void ehca_poll_eqs(unsigned long data);
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#ifdef CONFIG_PPC_64K_PAGES
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void *ehca_alloc_fw_ctrlblock(gfp_t flags);
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void ehca_free_fw_ctrlblock(void *ptr);
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#else
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#define ehca_alloc_fw_ctrlblock(flags) ((void *) get_zeroed_page(flags))
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#define ehca_free_fw_ctrlblock(ptr) free_page((unsigned long)(ptr))
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#endif
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#endif
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