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openSUSE:Leap:15.2:Rings:1-MinimalX
rdma-core
Revert-libnes-Remove-libnes-from-rdma-core.patch
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File Revert-libnes-Remove-libnes-from-rdma-core.patch of Package rdma-core
commit 7e7a6f829acc1044b53d58afd88d0c10d6b8acaf Author: Nicolas Morey-Chaisemartin <nmoreychaisemartin@suse.com> Date: Fri Jan 10 09:07:34 2020 +0100 Revert "libnes: Remove libnes from rdma-core" This reverts commit 4daf5c91c1296683924cb9668c3d879da072756b. diff --git CMakeLists.txt CMakeLists.txt index 364b4be0a04e..b3ff156956a0 100644 --- CMakeLists.txt +++ CMakeLists.txt @@ -625,6 +625,7 @@ add_subdirectory(providers/mlx4/man) add_subdirectory(providers/mlx5) add_subdirectory(providers/mlx5/man) add_subdirectory(providers/mthca) +add_subdirectory(providers/nes) # NO SPARSE add_subdirectory(providers/ocrdma) add_subdirectory(providers/qedr) add_subdirectory(providers/vmw_pvrdma) diff --git MAINTAINERS MAINTAINERS index 70c8f6759982..8030891d96a4 100644 --- MAINTAINERS +++ MAINTAINERS @@ -141,6 +141,11 @@ H: Roland Dreier <roland@topspin.com> S: Supported F: providers/mthca/ +NES USERSPACE PROVIDER (for iw_nes.ko) +M: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> +S: Supported +F: providers/nes/ + OCRDMA USERSPACE PROVIDER (for ocrdma.ko) M: Devesh Sharma <Devesh.sharma@broadcom.com> S: Supported diff --git README.md README.md index ba509ef0cce2..24eee90cb8b7 100644 --- README.md +++ README.md @@ -23,6 +23,7 @@ is included: - mlx4_ib.ko - mlx5_ib.ko - ib_mthca.ko + - iw_nes.ko - ocrdma.ko - qedr.ko - rdma_rxe.ko diff --git debian/control debian/control index 25abf9b588be..738b2d6da39d 100644 --- debian/control +++ debian/control @@ -102,6 +102,7 @@ Description: User space provider drivers for libibverbs - mlx4: Mellanox ConnectX-3 InfiniBand HCAs - mlx5: Mellanox Connect-IB/X-4+ InfiniBand HCAs - mthca: Mellanox InfiniBand HCAs + - nes: Intel NetEffect NE020-based iWARP adapters - ocrdma: Emulex OneConnect RDMA/RoCE device - qedr: QLogic QL4xxx RoCE HCAs - rxe: A software implementation of the RoCE protocol diff --git debian/copyright debian/copyright index 6f86d1c86e21..db4951993bd8 100644 --- debian/copyright +++ debian/copyright @@ -197,6 +197,11 @@ Copyright: 2004-2005, Topspin Communications. 2005, Mellanox Technologies Ltd. License: BSD-MIT or GPL-2 +Files: providers/nes/* +Copyright: 2006-2010, Intel Corporation. + 2006, Open Grid Computing, Inc. +License: BSD-MIT or GPL-2 + Files: providers/ocrdma/* Copyright: 2008-2013, Emulex. License: BSD-2-clause or GPL-2 diff --git kernel-boot/rdma-description.rules kernel-boot/rdma-description.rules index 48a7cede9bc8..4ea59ba1977b 100644 --- kernel-boot/rdma-description.rules +++ kernel-boot/rdma-description.rules @@ -24,6 +24,7 @@ DRIVERS=="hfi1", ENV{ID_RDMA_OPA}="1" # Hardware that supports iWarp DRIVERS=="cxgb4", ENV{ID_RDMA_IWARP}="1" DRIVERS=="i40e", ENV{ID_RDMA_IWARP}="1" +DRIVERS=="nes", ENV{ID_RDMA_IWARP}="1" # Hardware that supports RoCE DRIVERS=="be2net", ENV{ID_RDMA_ROCE}="1" diff --git kernel-boot/rdma-hw-modules.rules kernel-boot/rdma-hw-modules.rules index bee416dbe719..da4bbe363ac4 100644 --- kernel-boot/rdma-hw-modules.rules +++ kernel-boot/rdma-hw-modules.rules @@ -33,5 +33,6 @@ ENV{ID_NET_DRIVER}=="enic", RUN{builtin}+="kmod load usnic_verbs" # ipathverbs # mthca # vmw_pvrdma +# nes LABEL="rdma_hw_modules_end" diff --git libibverbs/verbs.h libibverbs/verbs.h index 7b8d431024b9..d873f6d07327 100644 --- libibverbs/verbs.h +++ libibverbs/verbs.h @@ -2165,6 +2165,7 @@ extern const struct verbs_device_ops verbs_provider_ipathverbs; extern const struct verbs_device_ops verbs_provider_mlx4; extern const struct verbs_device_ops verbs_provider_mlx5; extern const struct verbs_device_ops verbs_provider_mthca; +extern const struct verbs_device_ops verbs_provider_nes; extern const struct verbs_device_ops verbs_provider_ocrdma; extern const struct verbs_device_ops verbs_provider_qedr; extern const struct verbs_device_ops verbs_provider_rxe; diff --git providers/nes/CMakeLists.txt providers/nes/CMakeLists.txt new file mode 100644 index 000000000000..0c7fa8fad09f --- /dev/null +++ providers/nes/CMakeLists.txt @@ -0,0 +1,4 @@ +rdma_provider(nes + nes_umain.c + nes_uverbs.c +) diff --git providers/nes/nes-abi.h providers/nes/nes-abi.h new file mode 100644 index 000000000000..0a531230b062 --- /dev/null +++ providers/nes/nes-abi.h @@ -0,0 +1,52 @@ +/* + * Copyright (c) 2006 - 2010 Intel Corporation. All rights reserved. + * Copyright (c) 2006 Open Grid Computing, 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 + * gpl-2.0.txt 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 nes_ABI_H +#define nes_ABI_H + +#include <infiniband/kern-abi.h> +#include <rdma/nes-abi.h> +#include <kernel-abi/nes-abi.h> + +DECLARE_DRV_CMD(nes_ualloc_pd, IB_USER_VERBS_CMD_ALLOC_PD, + empty, nes_alloc_pd_resp); +DECLARE_DRV_CMD(nes_ucreate_cq, IB_USER_VERBS_CMD_CREATE_CQ, + nes_create_cq_req, nes_create_cq_resp); +DECLARE_DRV_CMD(nes_ucreate_qp, IB_USER_VERBS_CMD_CREATE_QP, + nes_create_qp_req, nes_create_qp_resp); +DECLARE_DRV_CMD(nes_get_context, IB_USER_VERBS_CMD_GET_CONTEXT, + nes_alloc_ucontext_req, nes_alloc_ucontext_resp); +DECLARE_DRV_CMD(nes_ureg_mr, IB_USER_VERBS_CMD_REG_MR, + nes_mem_reg_req, empty); + +#endif /* nes_ABI_H */ diff --git providers/nes/nes_umain.c providers/nes/nes_umain.c new file mode 100644 index 000000000000..07aa7ddd112a --- /dev/null +++ providers/nes/nes_umain.c @@ -0,0 +1,220 @@ +/* + * Copyright (c) 2006 - 2010 Intel Corporation. All rights reserved. + * Copyright (c) 2006 Open Grid Computing, 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 + * gpl-2.0.txt 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. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <errno.h> +#include <sys/mman.h> +#include <pthread.h> + +#include "nes_umain.h" +#include "nes-abi.h" + +unsigned int nes_debug_level = 0; +long int page_size; + +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> + +#ifndef PCI_VENDOR_ID_NETEFFECT +#define PCI_VENDOR_ID_NETEFFECT 0x1678 +#endif + +#define HCA(v, d) VERBS_PCI_MATCH(PCI_VENDOR_ID_##v, d, NULL) +static const struct verbs_match_ent hca_table[] = { + VERBS_DRIVER_ID(RDMA_DRIVER_NES), + HCA(NETEFFECT, 0x0100), + HCA(NETEFFECT, 0x0110), + {}, +}; + +static const struct verbs_context_ops nes_uctx_ops = { + .query_device = nes_uquery_device, + .query_port = nes_uquery_port, + .alloc_pd = nes_ualloc_pd, + .dealloc_pd = nes_ufree_pd, + .reg_mr = nes_ureg_mr, + .dereg_mr = nes_udereg_mr, + .create_cq = nes_ucreate_cq, + .poll_cq = nes_upoll_cq, + .req_notify_cq = nes_uarm_cq, + .cq_event = nes_cq_event, + .resize_cq = nes_uresize_cq, + .destroy_cq = nes_udestroy_cq, + .create_qp = nes_ucreate_qp, + .query_qp = nes_uquery_qp, + .modify_qp = nes_umodify_qp, + .destroy_qp = nes_udestroy_qp, + .post_send = nes_upost_send, + .post_recv = nes_upost_recv, + .create_ah = nes_ucreate_ah, + .destroy_ah = nes_udestroy_ah, + .attach_mcast = nes_uattach_mcast, + .detach_mcast = nes_udetach_mcast, + .async_event = nes_async_event +}; + +static const struct verbs_context_ops nes_uctx_no_db_ops = { + .poll_cq = nes_upoll_cq_no_db_read, +}; + + +/** + * nes_ualloc_context + */ +static struct verbs_context *nes_ualloc_context(struct ibv_device *ibdev, + int cmd_fd, + void *private_data) +{ + struct ibv_pd *ibv_pd; + struct nes_uvcontext *nesvctx; + struct nes_get_context cmd; + struct nes_get_context_resp resp; + char value[16]; + uint32_t nes_drv_opt = 0; + + page_size = sysconf(_SC_PAGESIZE); + + nesvctx = verbs_init_and_alloc_context(ibdev, cmd_fd, nesvctx, ibv_ctx, + RDMA_DRIVER_NES); + if (!nesvctx) + return NULL; + + cmd.userspace_ver = NES_ABI_USERSPACE_VER; + + if (ibv_cmd_get_context(&nesvctx->ibv_ctx, (struct ibv_get_context *)&cmd, sizeof cmd, + &resp.ibv_resp, sizeof(resp))) + goto err_free; + + if (resp.kernel_ver != NES_ABI_KERNEL_VER) { + fprintf(stderr, PFX "%s: Invalid kernel driver version detected. Detected %d, should be %d\n", + __FUNCTION__, resp.kernel_ver, NES_ABI_KERNEL_VER); + goto err_free; + } + + if (ibv_read_sysfs_file("/sys/module/iw_nes", "parameters/nes_drv_opt", + value, sizeof(value)) > 0) { + sscanf(value, "%d", &nes_drv_opt); + } else if (ibv_read_sysfs_file("/sys/module/iw_nes", "nes_drv_opt", + value, sizeof(value)) > 0) { + sscanf(value, "%d", &nes_drv_opt); + } + + verbs_set_ops(&nesvctx->ibv_ctx, &nes_uctx_ops); + if (nes_drv_opt & NES_DRV_OPT_NO_DB_READ) + verbs_set_ops(&nesvctx->ibv_ctx, &nes_uctx_no_db_ops); + + nesvctx->max_pds = resp.max_pds; + nesvctx->max_qps = resp.max_qps; + nesvctx->wq_size = resp.wq_size; + nesvctx->virtwq = resp.virtwq; + nesvctx->mcrqf = 0; + + /* Get a doorbell region for the CQs */ + ibv_pd = nes_ualloc_pd(&nesvctx->ibv_ctx.context); + if (!ibv_pd) + goto err_free; + ibv_pd->context = &nesvctx->ibv_ctx.context; + nesvctx->nesupd = to_nes_upd(ibv_pd); + + return &nesvctx->ibv_ctx; + +err_free: + fprintf(stderr, PFX "%s: Failed to allocate context for device.\n", __FUNCTION__); + verbs_uninit_context(&nesvctx->ibv_ctx); + free(nesvctx); + + return NULL; +} + + +/** + * nes_ufree_context + */ +static void nes_ufree_context(struct ibv_context *ibctx) +{ + struct nes_uvcontext *nesvctx = to_nes_uctx(ibctx); + nes_ufree_pd(&nesvctx->nesupd->ibv_pd); + + verbs_uninit_context(&nesvctx->ibv_ctx); + free(nesvctx); +} + +static void nes_uninit_device(struct verbs_device *verbs_device) +{ + struct nes_udevice *dev = to_nes_udev(&verbs_device->device); + + free(dev); +} + +static struct verbs_device * +nes_device_alloc(struct verbs_sysfs_dev *sysfs_dev) +{ + struct nes_udevice *dev; + char value[16]; + + if (ibv_read_sysfs_file("/sys/module/iw_nes", "parameters/debug_level", + value, sizeof(value)) > 0) { + sscanf(value, "%u", &nes_debug_level); + } else if (ibv_read_sysfs_file("/sys/module/iw_nes", "debug_level", + value, sizeof(value)) > 0) { + sscanf(value, "%u", &nes_debug_level); + } + + dev = calloc(1, sizeof(*dev)); + if (!dev) + return NULL; + + dev->page_size = sysconf(_SC_PAGESIZE); + + nes_debug(NES_DBG_INIT, "libnes initialized\n"); + + return &dev->ibv_dev; +} + +static const struct verbs_device_ops nes_udev_ops = { + .name = "nes", + .match_min_abi_version = 0, + .match_max_abi_version = INT_MAX, + .match_table = hca_table, + .alloc_device = nes_device_alloc, + .uninit_device = nes_uninit_device, + .alloc_context = nes_ualloc_context, + .free_context = nes_ufree_context, +}; +PROVIDER_DRIVER(nes, nes_udev_ops); diff --git providers/nes/nes_umain.h providers/nes/nes_umain.h new file mode 100644 index 000000000000..1070ce4295a5 --- /dev/null +++ providers/nes/nes_umain.h @@ -0,0 +1,383 @@ +/* + * Copyright (c) 2006 - 2010 Intel Corporation. All rights reserved. + * Copyright (c) 2006 Open Grid Computing, 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 + * gpl-2.0.txt 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 nes_umain_H +#define nes_umain_H + +#include <inttypes.h> +#include <stddef.h> +#include <endian.h> +#include <util/compiler.h> + +#include <infiniband/driver.h> +#include <util/udma_barrier.h> + +#define PFX "libnes: " + +#define NES_QP_MMAP 1 +#define NES_QP_VMAP 2 + +#define NES_DRV_OPT_NO_INLINE_DATA 0x00000080 +#define NES_DRV_OPT_NO_DB_READ 0x00001000 + +#define NES_DEBUG +/* debug levels */ +/* must match kernel */ +#define NES_DBG_HW 0x00000001 +#define NES_DBG_INIT 0x00000002 +#define NES_DBG_ISR 0x00000004 +#define NES_DBG_PHY 0x00000008 +#define NES_DBG_NETDEV 0x00000010 +#define NES_DBG_CM 0x00000020 +#define NES_DBG_CM1 0x00000040 +#define NES_DBG_NIC_RX 0x00000080 +#define NES_DBG_NIC_TX 0x00000100 +#define NES_DBG_CQP 0x00000200 +#define NES_DBG_MMAP 0x00000400 +#define NES_DBG_MR 0x00000800 +#define NES_DBG_PD 0x00001000 +#define NES_DBG_CQ 0x00002000 +#define NES_DBG_QP 0x00004000 +#define NES_DBG_MOD_QP 0x00008000 +#define NES_DBG_AEQ 0x00010000 +#define NES_DBG_IW_RX 0x00020000 +#define NES_DBG_IW_TX 0x00040000 +#define NES_DBG_SHUTDOWN 0x00080000 +#define NES_DBG_UD 0x00100000 +#define NES_DBG_RSVD1 0x10000000 +#define NES_DBG_RSVD2 0x20000000 +#define NES_DBG_RSVD3 0x40000000 +#define NES_DBG_RSVD4 0x80000000 +#define NES_DBG_ALL 0xffffffff + +extern unsigned int nes_debug_level; +#ifdef NES_DEBUG +#define nes_debug(level, fmt, args...) \ + if (level & nes_debug_level) \ + fprintf(stderr, PFX "%s[%u]: " fmt, __FUNCTION__, __LINE__, ##args) +#else +#define nes_debug(level, fmt, args...) +#endif + +enum nes_cqe_opcode_bits { + NES_CQE_STAG_VALID = (1<<6), + NES_CQE_ERROR = (1<<7), + NES_CQE_SQ = (1<<8), + NES_CQE_SE = (1<<9), + NES_CQE_PSH = (1<<29), + NES_CQE_FIN = (1<<30), + NES_CQE_VALID = (1<<31), +}; + +enum nes_cqe_word_idx { + NES_CQE_PAYLOAD_LENGTH_IDX = 0, + NES_CQE_COMP_COMP_CTX_LOW_IDX = 2, + NES_CQE_COMP_COMP_CTX_HIGH_IDX = 3, + NES_CQE_INV_STAG_IDX = 4, + NES_CQE_QP_ID_IDX = 5, + NES_CQE_ERROR_CODE_IDX = 6, + NES_CQE_OPCODE_IDX = 7, +}; + +enum nes_cqe_allocate_bits { + NES_CQE_ALLOC_INC_SELECT = (1<<28), + NES_CQE_ALLOC_NOTIFY_NEXT = (1<<29), + NES_CQE_ALLOC_NOTIFY_SE = (1<<30), + NES_CQE_ALLOC_RESET = (1<<31), +}; + +enum nes_iwarp_sq_wqe_word_idx { + NES_IWARP_SQ_WQE_MISC_IDX = 0, + NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX = 1, + NES_IWARP_SQ_WQE_COMP_CTX_LOW_IDX = 2, + NES_IWARP_SQ_WQE_COMP_CTX_HIGH_IDX = 3, + NES_IWARP_SQ_WQE_COMP_SCRATCH_LOW_IDX = 4, + NES_IWARP_SQ_WQE_COMP_SCRATCH_HIGH_IDX = 5, + NES_IWARP_SQ_WQE_INV_STAG_LOW_IDX = 7, + NES_IWARP_SQ_WQE_RDMA_TO_LOW_IDX = 8, + NES_IWARP_SQ_WQE_RDMA_TO_HIGH_IDX = 9, + NES_IWARP_SQ_WQE_RDMA_LENGTH_IDX = 10, + NES_IWARP_SQ_WQE_RDMA_STAG_IDX = 11, + NES_IWARP_SQ_WQE_IMM_DATA_START_IDX = 12, + NES_IWARP_SQ_WQE_FRAG0_LOW_IDX = 16, + NES_IWARP_SQ_WQE_FRAG0_HIGH_IDX = 17, + NES_IWARP_SQ_WQE_LENGTH0_IDX = 18, + NES_IWARP_SQ_WQE_STAG0_IDX = 19, + NES_IWARP_SQ_WQE_FRAG1_LOW_IDX = 20, + NES_IWARP_SQ_WQE_FRAG1_HIGH_IDX = 21, + NES_IWARP_SQ_WQE_LENGTH1_IDX = 22, + NES_IWARP_SQ_WQE_STAG1_IDX = 23, + NES_IWARP_SQ_WQE_FRAG2_LOW_IDX = 24, + NES_IWARP_SQ_WQE_FRAG2_HIGH_IDX = 25, + NES_IWARP_SQ_WQE_LENGTH2_IDX = 26, + NES_IWARP_SQ_WQE_STAG2_IDX = 27, + NES_IWARP_SQ_WQE_FRAG3_LOW_IDX = 28, + NES_IWARP_SQ_WQE_FRAG3_HIGH_IDX = 29, + NES_IWARP_SQ_WQE_LENGTH3_IDX = 30, + NES_IWARP_SQ_WQE_STAG3_IDX = 31, +}; + +enum nes_iwarp_rq_wqe_word_idx { + NES_IWARP_RQ_WQE_TOTAL_PAYLOAD_IDX = 1, + NES_IWARP_RQ_WQE_COMP_CTX_LOW_IDX = 2, + NES_IWARP_RQ_WQE_COMP_CTX_HIGH_IDX = 3, + NES_IWARP_RQ_WQE_COMP_SCRATCH_LOW_IDX = 4, + NES_IWARP_RQ_WQE_COMP_SCRATCH_HIGH_IDX = 5, + NES_IWARP_RQ_WQE_FRAG0_LOW_IDX = 8, + NES_IWARP_RQ_WQE_FRAG0_HIGH_IDX = 9, + NES_IWARP_RQ_WQE_LENGTH0_IDX = 10, + NES_IWARP_RQ_WQE_STAG0_IDX = 11, + NES_IWARP_RQ_WQE_FRAG1_LOW_IDX = 12, + NES_IWARP_RQ_WQE_FRAG1_HIGH_IDX = 13, + NES_IWARP_RQ_WQE_LENGTH1_IDX = 14, + NES_IWARP_RQ_WQE_STAG1_IDX = 15, + NES_IWARP_RQ_WQE_FRAG2_LOW_IDX = 16, + NES_IWARP_RQ_WQE_FRAG2_HIGH_IDX = 17, + NES_IWARP_RQ_WQE_LENGTH2_IDX = 18, + NES_IWARP_RQ_WQE_STAG2_IDX = 19, + NES_IWARP_RQ_WQE_FRAG3_LOW_IDX = 20, + NES_IWARP_RQ_WQE_FRAG3_HIGH_IDX = 21, + NES_IWARP_RQ_WQE_LENGTH3_IDX = 22, + NES_IWARP_RQ_WQE_STAG3_IDX = 23, +}; + +enum nes_iwarp_sq_opcodes { + NES_IWARP_SQ_WQE_STREAMING = (1<<23), + NES_IWARP_SQ_WQE_IMM_DATA = (1<<28), + NES_IWARP_SQ_WQE_READ_FENCE = (1<<29), + NES_IWARP_SQ_WQE_LOCAL_FENCE = (1<<30), + NES_IWARP_SQ_WQE_SIGNALED_COMPL = (1<<31), +}; + +enum nes_iwarp_sq_wqe_bits { + NES_IWARP_SQ_OP_RDMAW = 0, + NES_IWARP_SQ_OP_RDMAR = 1, + NES_IWARP_SQ_OP_SEND = 3, + NES_IWARP_SQ_OP_SENDINV = 4, + NES_IWARP_SQ_OP_SENDSE = 5, + NES_IWARP_SQ_OP_SENDSEINV = 6, + NES_IWARP_SQ_OP_BIND = 8, + NES_IWARP_SQ_OP_FAST_REG = 9, + NES_IWARP_SQ_OP_LOCINV = 10, + NES_IWARP_SQ_OP_RDMAR_LOCINV = 11, + NES_IWARP_SQ_OP_NOP = 12, +}; + +enum nes_nic_cqe_word_idx { + NES_NIC_CQE_ACCQP_ID_IDX = 0, + NES_NIC_CQE_TAG_PKT_TYPE_IDX = 2, + NES_NIC_CQE_MISC_IDX = 3, +}; + +#define NES_NIC_CQE_ERRV_SHIFT 16 +enum nes_nic_ev_bits { + NES_NIC_ERRV_BITS_MODE = (1<<0), + NES_NIC_ERRV_BITS_IPV4_CSUM_ERR = (1<<1), + NES_NIC_ERRV_BITS_TCPUDP_CSUM_ERR = (1<<2), + NES_NIC_ERRV_BITS_WQE_OVERRUN = (1<<3), + NES_NIC_ERRV_BITS_IPH_ERR = (1<<4), +}; + +enum nes_nic_cqe_bits { + NES_NIC_CQE_ERRV_MASK = (0xff<<NES_NIC_CQE_ERRV_SHIFT), + NES_NIC_CQE_SQ = (1<<24), + NES_NIC_CQE_ACCQP_PORT = (1<<28), + NES_NIC_CQE_ACCQP_VALID = (1<<29), + NES_NIC_CQE_TAG_VALID = (1<<30), + NES_NIC_CQE_VALID = (1<<31), +}; +struct nes_hw_nic_cqe { + uint32_t cqe_words[4]; +}; + +enum nes_iwarp_cqe_major_code { + NES_IWARP_CQE_MAJOR_FLUSH = 1, + NES_IWARP_CQE_MAJOR_DRV = 0x8000 +}; + +enum nes_iwarp_cqe_minor_code { + NES_IWARP_CQE_MINOR_FLUSH = 1 +}; + +struct nes_hw_qp_wqe { + uint32_t wqe_words[32]; +}; + +struct nes_hw_cqe { + uint32_t cqe_words[8]; +}; + +struct nes_user_doorbell { + uint32_t wqe_alloc; + uint32_t reserved[3]; + uint32_t cqe_alloc; +}; + +struct nes_udevice { + struct verbs_device ibv_dev; + int page_size; +}; + +struct nes_upd { + struct ibv_pd ibv_pd; + struct nes_user_doorbell volatile *udoorbell; + uint32_t pd_id; + uint32_t db_index; +}; + +struct nes_uvcontext { + struct verbs_context ibv_ctx; + struct nes_upd *nesupd; + uint32_t max_pds; /* maximum pds allowed for this user process */ + uint32_t max_qps; /* maximum qps allowed for this user process */ + uint32_t wq_size; /* size of the WQs (sq+rq) allocated to the mmaped area */ + uint32_t mcrqf; + uint8_t virtwq ; /* flag if to use virt wqs or not */ + uint8_t reserved[3]; +}; + +struct nes_uqp; + +struct nes_ucq { + struct ibv_cq ibv_cq; + struct nes_hw_cqe volatile *cqes; + struct verbs_mr vmr; + pthread_spinlock_t lock; + uint32_t cq_id; + uint16_t size; + uint16_t head; + uint16_t polled_completions; + uint8_t is_armed; + uint8_t skip_arm; + int arm_sol; + int skip_sol; + int comp_vector; + struct nes_uqp *udqp; +}; + +struct nes_uqp { + struct ibv_qp ibv_qp; + struct nes_hw_qp_wqe volatile *sq_vbase; + struct nes_hw_qp_wqe volatile *rq_vbase; + uint32_t qp_id; + struct nes_ucq *send_cq; + struct nes_ucq *recv_cq; + struct verbs_mr vmr; + uint32_t nes_drv_opt; + pthread_spinlock_t lock; + uint16_t sq_db_index; + uint16_t sq_head; + uint16_t sq_tail; + uint16_t sq_size; + uint16_t sq_sig_all; + uint16_t rq_db_index; + uint16_t rq_head; + uint16_t rq_tail; + uint16_t rq_size; + uint16_t rdma0_msg; + uint16_t mapping; + uint16_t qperr; + uint16_t rsvd; + uint32_t pending_rcvs; + struct ibv_recv_wr *pend_rx_wr; + int nes_ud_sksq_fd; + void *sksq_shared_ctxt; + uint64_t send_wr_id[512]; /* IMA send wr_id ring content */ + uint64_t recv_wr_id[512]; /* IMA receive wr_id ring content */ +}; + +#define to_nes_uxxx(xxx, type) \ + container_of(ib##xxx, struct nes_u##type, ibv_##xxx) + +static inline struct nes_udevice *to_nes_udev(struct ibv_device *ibdev) +{ + return container_of(ibdev, struct nes_udevice, ibv_dev.device); +} + +static inline struct nes_uvcontext *to_nes_uctx(struct ibv_context *ibctx) +{ + return container_of(ibctx, struct nes_uvcontext, ibv_ctx.context); +} + +static inline struct nes_upd *to_nes_upd(struct ibv_pd *ibpd) +{ + return to_nes_uxxx(pd, pd); +} + +static inline struct nes_ucq *to_nes_ucq(struct ibv_cq *ibcq) +{ + return to_nes_uxxx(cq, cq); +} + +static inline struct nes_uqp *to_nes_uqp(struct ibv_qp *ibqp) +{ + return to_nes_uxxx(qp, qp); +} + + +/* nes_uverbs.c */ +int nes_uquery_device(struct ibv_context *, struct ibv_device_attr *); +int nes_uquery_port(struct ibv_context *, uint8_t, struct ibv_port_attr *); +struct ibv_pd *nes_ualloc_pd(struct ibv_context *); +int nes_ufree_pd(struct ibv_pd *); +struct ibv_mr *nes_ureg_mr(struct ibv_pd *pd, void *addr, size_t length, + uint64_t hca_va, int access); +int nes_udereg_mr(struct verbs_mr *vmr); +struct ibv_cq *nes_ucreate_cq(struct ibv_context *, int, struct ibv_comp_channel *, int); +int nes_uresize_cq(struct ibv_cq *, int); +int nes_udestroy_cq(struct ibv_cq *); +int nes_upoll_cq(struct ibv_cq *, int, struct ibv_wc *); +int nes_upoll_cq_no_db_read(struct ibv_cq *, int, struct ibv_wc *); +int nes_uarm_cq(struct ibv_cq *, int); +void nes_cq_event(struct ibv_cq *); +struct ibv_srq *nes_ucreate_srq(struct ibv_pd *, struct ibv_srq_init_attr *); +int nes_umodify_srq(struct ibv_srq *, struct ibv_srq_attr *, int); +int nes_udestroy_srq(struct ibv_srq *); +int nes_upost_srq_recv(struct ibv_srq *, struct ibv_recv_wr *, struct ibv_recv_wr **); +struct ibv_qp *nes_ucreate_qp(struct ibv_pd *, struct ibv_qp_init_attr *); +int nes_uquery_qp(struct ibv_qp *qp, struct ibv_qp_attr *attr, + int, struct ibv_qp_init_attr *init_attr); +int nes_umodify_qp(struct ibv_qp *, struct ibv_qp_attr *, int); +int nes_udestroy_qp(struct ibv_qp *); +int nes_upost_send(struct ibv_qp *, struct ibv_send_wr *, struct ibv_send_wr **); +int nes_upost_recv(struct ibv_qp *, struct ibv_recv_wr *, struct ibv_recv_wr **); +struct ibv_ah *nes_ucreate_ah(struct ibv_pd *, struct ibv_ah_attr *); +int nes_udestroy_ah(struct ibv_ah *); +int nes_uattach_mcast(struct ibv_qp *, const union ibv_gid *, uint16_t); +int nes_udetach_mcast(struct ibv_qp *, const union ibv_gid *, uint16_t); +void nes_async_event(struct ibv_context *context, + struct ibv_async_event *event); + +extern long int page_size; + +#endif /* nes_umain_H */ diff --git providers/nes/nes_uverbs.c providers/nes/nes_uverbs.c new file mode 100644 index 000000000000..2b78468b4135 --- /dev/null +++ providers/nes/nes_uverbs.c @@ -0,0 +1,1535 @@ +/* + * Copyright (c) 2006 - 2010 Intel Corporation. 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 + * gpl-2.0.txt 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. + */ + +#include <config.h> + +#include <endian.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <unistd.h> +#include <signal.h> +#include <errno.h> +#include <pthread.h> +#include <malloc.h> +#include <sys/mman.h> +#include <linux/if_ether.h> +#include <sys/stat.h> +#include <fcntl.h> + +#include "nes_umain.h" +#include "nes-abi.h" + +#define STATIC static +#define INLINE inline + +#define NES_WC_WITH_VLAN 1 << 3 +#define NES_UD_RX_BATCH_SZ 64 +#define NES_UD_MAX_SG_LIST_SZ 1 + +struct nes_ud_send_wr { + uint32_t wr_cnt; + uint32_t qpn; + uint32_t flags; + uint32_t resv[1]; + struct ibv_sge sg_list[64]; +}; + +struct nes_ud_recv_wr { + uint32_t wr_cnt; + uint32_t qpn; + uint32_t resv[2]; + struct ibv_sge sg_list[64]; +}; + +/** + * nes_uquery_device + */ +int nes_uquery_device(struct ibv_context *context, struct ibv_device_attr *attr) +{ + struct ibv_query_device cmd; + uint64_t nes_fw_ver; + int ret; + unsigned int minor, major; + + ret = ibv_cmd_query_device(context, attr, &nes_fw_ver, + &cmd, sizeof cmd); + if (ret) + return ret; + + major = (nes_fw_ver >> 16) & 0xffff; + minor = nes_fw_ver & 0xffff; + + snprintf(attr->fw_ver, sizeof attr->fw_ver, + "%d.%d", major, minor); + + return 0; +} + + +/** + * nes_uquery_port + */ +int nes_uquery_port(struct ibv_context *context, uint8_t port, + struct ibv_port_attr *attr) +{ + struct ibv_query_port cmd; + + return ibv_cmd_query_port(context, port, attr, &cmd, sizeof cmd); +} + + +/** + * nes_ualloc_pd + */ +struct ibv_pd *nes_ualloc_pd(struct ibv_context *context) +{ + struct ibv_alloc_pd cmd; + struct nes_ualloc_pd_resp resp; + struct nes_upd *nesupd; + + nesupd = malloc(sizeof *nesupd); + if (!nesupd) + return NULL; + + if (ibv_cmd_alloc_pd(context, &nesupd->ibv_pd, &cmd, sizeof cmd, + &resp.ibv_resp, sizeof resp)) { + free(nesupd); + return NULL; + } + nesupd->pd_id = resp.pd_id; + nesupd->db_index = resp.mmap_db_index; + + nesupd->udoorbell = mmap(NULL, page_size, PROT_WRITE | PROT_READ, MAP_SHARED, + context->cmd_fd, nesupd->db_index * page_size); + + if (nesupd->udoorbell == MAP_FAILED) { + free(nesupd); + return NULL; + } + + return &nesupd->ibv_pd; +} + + +/** + * nes_ufree_pd + */ +int nes_ufree_pd(struct ibv_pd *pd) +{ + int ret; + struct nes_upd *nesupd; + + nesupd = to_nes_upd(pd); + + ret = ibv_cmd_dealloc_pd(pd); + if (ret) + return ret; + + munmap((void *)nesupd->udoorbell, page_size); + free(nesupd); + + return 0; +} + + +/** + * nes_ureg_mr + */ +struct ibv_mr *nes_ureg_mr(struct ibv_pd *pd, void *addr, size_t length, + uint64_t hca_va, int access) +{ + struct verbs_mr *vmr; + struct nes_ureg_mr cmd; + struct ib_uverbs_reg_mr_resp resp; + + vmr = malloc(sizeof(*vmr)); + if (!vmr) + return NULL; + + cmd.reg_type = IWNES_MEMREG_TYPE_MEM; + if (ibv_cmd_reg_mr(pd, addr, length, hca_va, access, vmr, &cmd.ibv_cmd, + sizeof(cmd), &resp, sizeof(resp))) { + free(vmr); + + return NULL; + } + + return &vmr->ibv_mr; +} + + +/** + * nes_udereg_mr + */ +int nes_udereg_mr(struct verbs_mr *vmr) +{ + int ret; + + ret = ibv_cmd_dereg_mr(vmr); + if (ret) + return ret; + + free(vmr); + return 0; +} + +/** + * nes_ucreate_cq + */ +struct ibv_cq *nes_ucreate_cq(struct ibv_context *context, int cqe, + struct ibv_comp_channel *channel, int comp_vector) +{ + struct nes_ucq *nesucq; + struct nes_ureg_mr reg_mr_cmd; + struct ib_uverbs_reg_mr_resp reg_mr_resp; + struct nes_ucreate_cq cmd; + struct nes_ucreate_cq_resp resp; + int ret; + struct nes_uvcontext *nesvctx = to_nes_uctx(context); + + nesucq = malloc(sizeof *nesucq); + if (!nesucq) { + return NULL; + } + memset(nesucq, 0, sizeof(*nesucq)); + + if (pthread_spin_init(&nesucq->lock, PTHREAD_PROCESS_PRIVATE)) { + free(nesucq); + return NULL; + } + + if (cqe < 4) /* a reasonable minimum */ + cqe = 4; + nesucq->size = cqe + 1; + nesucq->comp_vector = comp_vector; + + nesucq->cqes = memalign(page_size, nesucq->size*sizeof(struct nes_hw_cqe)); + if (!nesucq->cqes) + goto err; + + /* Register the memory for the CQ */ + reg_mr_cmd.reg_type = IWNES_MEMREG_TYPE_CQ; + + ret = ibv_cmd_reg_mr(&nesvctx->nesupd->ibv_pd, (void *)nesucq->cqes, + (nesucq->size*sizeof(struct nes_hw_cqe)), + (uintptr_t)nesucq->cqes, IBV_ACCESS_LOCAL_WRITE, + &nesucq->vmr, ®_mr_cmd.ibv_cmd, sizeof(reg_mr_cmd), + ®_mr_resp, sizeof(reg_mr_resp)); + if (ret) { + /* fprintf(stderr, "ibv_cmd_reg_mr failed (ret = %d).\n", ret); */ + free((struct nes_hw_cqe *)nesucq->cqes); + goto err; + } + + /* Create the CQ */ + memset(&cmd, 0, sizeof(cmd)); + cmd.user_cq_buffer = (__u64)((uintptr_t)nesucq->cqes); + cmd.mcrqf = nesvctx->mcrqf; + + ret = ibv_cmd_create_cq(context, nesucq->size-1, channel, comp_vector, + &nesucq->ibv_cq, &cmd.ibv_cmd, sizeof cmd, + &resp.ibv_resp, sizeof resp); + if (ret) + goto err; + + nesucq->cq_id = (uint16_t)resp.cq_id; + + /* Zero out the CQ */ + memset((struct nes_hw_cqe *)nesucq->cqes, 0, nesucq->size*sizeof(struct nes_hw_cqe)); + + return &nesucq->ibv_cq; + +err: + /* fprintf(stderr, PFX "%s: Error Creating CQ.\n", __FUNCTION__); */ + pthread_spin_destroy(&nesucq->lock); + free(nesucq); + + return NULL; +} + + +/** + * nes_uresize_cq + */ +int nes_uresize_cq(struct ibv_cq *cq, int cqe) +{ + /* fprintf(stderr, PFX "%s\n", __FUNCTION__); */ + return -ENOSYS; +} + +/** + * nes_udestroy_cq + */ +int nes_udestroy_cq(struct ibv_cq *cq) +{ + struct nes_ucq *nesucq = to_nes_ucq(cq); + int ret; + + ret = ibv_cmd_destroy_cq(cq); + if (ret) + return ret; + + ret = ibv_cmd_dereg_mr(&nesucq->vmr); + if (ret) + fprintf(stderr, PFX "%s: Failed to deregister CQ Memory Region.\n", __FUNCTION__); + + /* Free CQ the memory */ + free((struct nes_hw_cqe *)nesucq->cqes); + pthread_spin_destroy(&nesucq->lock); + free(nesucq); + + return 0; +} + +#define NES_CQ_BUF_OV_ERR 0x3 + +static inline +int nes_ima_upoll_cq(struct ibv_cq *cq, int num_entries, struct ibv_wc *entry) +{ + struct nes_ucq *nesucq = to_nes_ucq(cq); + struct nes_uvcontext *nesvctx = to_nes_uctx(cq->context); + uint32_t cqe_misc; + int cqe_count = 0; + uint32_t head; + uint32_t cq_size; + + volatile struct nes_hw_nic_cqe *cqe = NULL; + volatile struct nes_hw_nic_cqe *cqes; + + struct nes_uqp *nesuqp = nesucq->udqp; + uint32_t vlan_tag = 0; + + cqes = (volatile struct nes_hw_nic_cqe *)nesucq->cqes; + head = nesucq->head; + cq_size = nesucq->size; + + if (!nesuqp || !nesvctx) + exit(0); + if (nesuqp->ibv_qp.state == IBV_QPS_ERR) { + while (cqe_count < num_entries) { + memset(entry, 0, sizeof *entry); + + if (nesuqp->recv_cq == nesucq) { + if (nesuqp->rq_tail != nesuqp->rq_head) { + /* Working on a RQ Completion*/ + entry->wr_id = + nesuqp->recv_wr_id[nesuqp->rq_tail]; + if (++nesuqp->rq_tail >= nesuqp->rq_size) + nesuqp->rq_tail = 0; + } else + return cqe_count; + } else + if (nesuqp->send_cq == nesucq) { + if (nesuqp->sq_tail != nesuqp->sq_head) { + entry->wr_id = + nesuqp->send_wr_id[nesuqp->sq_tail]; + /* Working on a SQ Completion*/ + if (++nesuqp->sq_tail >= nesuqp->sq_size) + nesuqp->sq_tail = 0; + } else + return cqe_count; + } + entry->status = IBV_WC_WR_FLUSH_ERR; + entry++; + cqe_count++; + } + return cqe_count; + } + + while (cqe_count < num_entries) { + const enum ibv_wc_opcode INVAL_OP = -1; + + entry->opcode = INVAL_OP; + cqe = &cqes[head]; + cqe_misc = + le32toh(cqe->cqe_words[NES_NIC_CQE_MISC_IDX]); + if (cqe_misc & NES_NIC_CQE_VALID) { + memset(entry, 0, sizeof *entry); + entry->opcode = INVAL_OP; + cqe->cqe_words[NES_NIC_CQE_MISC_IDX] = 0; + entry->status = (cqe_misc & NES_NIC_CQE_ERRV_MASK) >> + NES_NIC_CQE_ERRV_SHIFT; + entry->qp_num = nesuqp->qp_id; + entry->src_qp = nesuqp->qp_id; + if (cqe_misc & NES_NIC_CQE_SQ) { + entry->opcode = IBV_WC_SEND; + + entry->wr_id = + nesuqp->send_wr_id[nesuqp->sq_tail]; + + /* Working on a SQ Completion*/ + if (++nesuqp->sq_tail >= nesuqp->sq_size) + nesuqp->sq_tail = 0; + } else { + /* no CRC counting at all - all packets + go to higher layer as they are received - + the fastest path */ + + entry->byte_len = cqe_misc & 0xffff; + entry->opcode = IBV_WC_RECV; + + entry->wr_id = + nesuqp->recv_wr_id[nesuqp->rq_tail]; + if (cqe_misc & NES_NIC_CQE_TAG_VALID) { + vlan_tag = le32toh( + cqe->cqe_words[NES_NIC_CQE_TAG_PKT_TYPE_IDX]) + >> 16; + entry->sl = (vlan_tag >> 12) & 0x0f; + entry->pkey_index = vlan_tag & 0x0fff; + entry->wc_flags |= NES_WC_WITH_VLAN; + } + + + /* Working on a RQ Completion*/ + if (++nesuqp->rq_tail >= nesuqp->rq_size) + nesuqp->rq_tail = 0; + if (entry->status == NES_CQ_BUF_OV_ERR) + entry->status = IBV_WC_LOC_LEN_ERR; + } + + if (++head >= cq_size) + head = 0; + + if (entry->opcode != INVAL_OP) { + /* it is possible that no entry will be + available */ + cqe_count++; + entry++; + } + + nesvctx->nesupd->udoorbell->cqe_alloc = + htole32(nesucq->cq_id | (1 << 16)); + } else { + break; + } + } + nesucq->head = head; + return cqe_count; +} + +/** + * nes_upoll_cq + */ +int nes_upoll_cq(struct ibv_cq *cq, int num_entries, struct ibv_wc *entry) +{ + uint64_t wrid; + struct nes_ucq *nesucq; + struct nes_uvcontext *nesvctx = NULL; + struct nes_uqp *nesuqp; + int cqe_count=0; + uint32_t head; + uint32_t cq_size; + uint32_t wqe_index; + uint32_t wq_tail = 0; + struct nes_hw_cqe cqe; + uint64_t u64temp; + int move_cq_head = 1; + uint32_t err_code; + + nesucq = to_nes_ucq(cq); + nesvctx = to_nes_uctx(cq->context); + + if (nesucq->cq_id < 64) + return nes_ima_upoll_cq(cq, num_entries, entry); + + pthread_spin_lock(&nesucq->lock); + + head = nesucq->head; + cq_size = nesucq->size; + + while (cqe_count<num_entries) { + if ((le32toh(nesucq->cqes[head].cqe_words[NES_CQE_OPCODE_IDX]) & NES_CQE_VALID) == 0) + break; + + /* Make sure we read CQ entry contents *after* we've checked the valid bit. */ + udma_from_device_barrier(); + + cqe = (volatile struct nes_hw_cqe)nesucq->cqes[head]; + + /* parse CQE, get completion context from WQE (either rq or sq */ + wqe_index = le32toh(cqe.cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX]) & 511; + u64temp = ((uint64_t) (le32toh(cqe.cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX]))) | + (((uint64_t) (le32toh(cqe.cqe_words[NES_CQE_COMP_COMP_CTX_HIGH_IDX])))<<32); + + if (likely(u64temp)) { + nesuqp = (struct nes_uqp *)(uintptr_t)(u64temp & (~1023)); + memset(entry, 0, sizeof *entry); + if (likely(le32toh(cqe.cqe_words[NES_CQE_ERROR_CODE_IDX]) == 0)) { + entry->status = IBV_WC_SUCCESS; + } else { + err_code = le32toh(cqe.cqe_words[NES_CQE_ERROR_CODE_IDX]); + if (NES_IWARP_CQE_MAJOR_DRV == (err_code >> 16)) { + entry->status = err_code & 0x0000ffff; + } else { + entry->status = IBV_WC_WR_FLUSH_ERR; + if (le32toh(cqe.cqe_words[NES_CQE_OPCODE_IDX]) & NES_CQE_SQ) { + if (wqe_index == 0 && nesuqp->rdma0_msg) { + nesuqp->sq_tail = (wqe_index+1)&(nesuqp->sq_size - 1); + move_cq_head = 0; + wq_tail = nesuqp->sq_tail; + nesuqp->rdma0_msg = 0; + goto nes_upoll_cq_update; + } + } + } + } + entry->qp_num = nesuqp->qp_id; + entry->src_qp = nesuqp->qp_id; + nesuqp->rdma0_msg = 0; + + if (le32toh(cqe.cqe_words[NES_CQE_OPCODE_IDX]) & NES_CQE_SQ) { + /* Working on a SQ Completion*/ + wrid = ((uint64_t) le32toh(nesuqp->sq_vbase[wqe_index].wqe_words[NES_IWARP_SQ_WQE_COMP_SCRATCH_LOW_IDX])) | + (((uint64_t) le32toh(nesuqp->sq_vbase[wqe_index].wqe_words[NES_IWARP_SQ_WQE_COMP_SCRATCH_HIGH_IDX]))<<32); + entry->byte_len = le32toh(nesuqp->sq_vbase[wqe_index].wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX]); + + switch (le32toh(nesuqp->sq_vbase[wqe_index]. + wqe_words[NES_IWARP_SQ_WQE_MISC_IDX]) & 0x3f) { + case NES_IWARP_SQ_OP_RDMAW: + /* fprintf(stderr, PFX "%s: Operation = RDMA WRITE.\n", + __FUNCTION__ ); */ + entry->opcode = IBV_WC_RDMA_WRITE; + break; + case NES_IWARP_SQ_OP_RDMAR: + /* fprintf(stderr, PFX "%s: Operation = RDMA READ.\n", + __FUNCTION__ ); */ + entry->opcode = IBV_WC_RDMA_READ; + entry->byte_len = le32toh(nesuqp->sq_vbase[wqe_index]. + wqe_words[NES_IWARP_SQ_WQE_RDMA_LENGTH_IDX]); + break; + case NES_IWARP_SQ_OP_SENDINV: + case NES_IWARP_SQ_OP_SENDSEINV: + case NES_IWARP_SQ_OP_SEND: + case NES_IWARP_SQ_OP_SENDSE: + /* fprintf(stderr, PFX "%s: Operation = Send.\n", + __FUNCTION__ ); */ + entry->opcode = IBV_WC_SEND; + break; + } + + nesuqp->sq_tail = (wqe_index+1)&(nesuqp->sq_size - 1); + if ((entry->status != IBV_WC_SUCCESS) && (nesuqp->sq_tail != nesuqp->sq_head)) { + move_cq_head = 0; + wq_tail = nesuqp->sq_tail; + } + } else { + /* Working on a RQ Completion*/ + entry->byte_len = le32toh(cqe.cqe_words[NES_CQE_PAYLOAD_LENGTH_IDX]); + wrid = ((uint64_t) le32toh(nesuqp->rq_vbase[wqe_index].wqe_words[NES_IWARP_RQ_WQE_COMP_SCRATCH_LOW_IDX])) | + (((uint64_t) le32toh(nesuqp->rq_vbase[wqe_index].wqe_words[NES_IWARP_RQ_WQE_COMP_SCRATCH_HIGH_IDX]))<<32); + entry->opcode = IBV_WC_RECV; + + nesuqp->rq_tail = (wqe_index+1)&(nesuqp->rq_size - 1); + if ((entry->status != IBV_WC_SUCCESS) && (nesuqp->rq_tail != nesuqp->rq_head)) { + move_cq_head = 0; + wq_tail = nesuqp->rq_tail; + } + } + + entry->wr_id = wrid; + entry++; + cqe_count++; + } +nes_upoll_cq_update: + if (move_cq_head) { + nesucq->cqes[head].cqe_words[NES_CQE_OPCODE_IDX] = 0; + if (++head >= cq_size) + head = 0; + nesucq->polled_completions++; + + if ((nesucq->polled_completions > (cq_size/2)) || + (nesucq->polled_completions == 255)) { + if (nesvctx == NULL) + nesvctx = to_nes_uctx(cq->context); + nesvctx->nesupd->udoorbell->cqe_alloc = htole32(nesucq->cq_id | + (nesucq->polled_completions << 16)); + nesucq->polled_completions = 0; + } + } else { + /* Update the wqe index and set status to flush */ + wqe_index = le32toh(cqe.cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX]); + wqe_index = (wqe_index & (~511)) | wq_tail; + nesucq->cqes[head].cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX] = + htole32(wqe_index); + nesucq->cqes[head].cqe_words[NES_CQE_ERROR_CODE_IDX] = + htole32((NES_IWARP_CQE_MAJOR_FLUSH << 16) | NES_IWARP_CQE_MINOR_FLUSH); + move_cq_head = 1; /* ready for next pass */ + } + } + + if (nesucq->polled_completions) { + if (nesvctx == NULL) + nesvctx = to_nes_uctx(cq->context); + nesvctx->nesupd->udoorbell->cqe_alloc = htole32(nesucq->cq_id | + (nesucq->polled_completions << 16)); + nesucq->polled_completions = 0; + } + nesucq->head = head; + + pthread_spin_unlock(&nesucq->lock); + + return cqe_count; +} + + +/** + * nes_upoll_cq_no_db_read + */ +int nes_upoll_cq_no_db_read(struct ibv_cq *cq, int num_entries, struct ibv_wc *entry) +{ + uint64_t wrid; + struct nes_ucq *nesucq; + struct nes_uvcontext *nesvctx = NULL; + struct nes_uqp *nesuqp; + int cqe_count=0; + uint32_t head; + uint32_t cq_size; + uint32_t wqe_index; + uint32_t wq_tail = 0; + struct nes_hw_cqe cqe; + uint64_t u64temp; + int move_cq_head = 1; + uint32_t err_code; + + nesucq = to_nes_ucq(cq); + nesvctx = to_nes_uctx(cq->context); + + if (nesucq->cq_id < 64) + return nes_ima_upoll_cq(cq, num_entries, entry); + + pthread_spin_lock(&nesucq->lock); + + head = nesucq->head; + cq_size = nesucq->size; + + while (cqe_count<num_entries) { + if ((le32toh(nesucq->cqes[head].cqe_words[NES_CQE_OPCODE_IDX]) & NES_CQE_VALID) == 0) + break; + + /* Make sure we read CQ entry contents *after* we've checked the valid bit. */ + udma_from_device_barrier(); + + cqe = (volatile struct nes_hw_cqe)nesucq->cqes[head]; + + /* parse CQE, get completion context from WQE (either rq or sq */ + wqe_index = le32toh(cqe.cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX]) & 511; + u64temp = ((uint64_t) (le32toh(cqe.cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX]))) | + (((uint64_t) (le32toh(cqe.cqe_words[NES_CQE_COMP_COMP_CTX_HIGH_IDX])))<<32); + + if (likely(u64temp)) { + nesuqp = (struct nes_uqp *)(uintptr_t)(u64temp & (~1023)); + memset(entry, 0, sizeof *entry); + if (likely(le32toh(cqe.cqe_words[NES_CQE_ERROR_CODE_IDX]) == 0)) { + entry->status = IBV_WC_SUCCESS; + } else { + err_code = le32toh(cqe.cqe_words[NES_CQE_ERROR_CODE_IDX]); + if (NES_IWARP_CQE_MAJOR_DRV == (err_code >> 16)) + entry->status = err_code & 0x0000ffff; + else + entry->status = IBV_WC_WR_FLUSH_ERR; + } + entry->qp_num = nesuqp->qp_id; + entry->src_qp = nesuqp->qp_id; + + if (le32toh(cqe.cqe_words[NES_CQE_OPCODE_IDX]) & NES_CQE_SQ) { + /* Working on a SQ Completion*/ + wrid = ((uint64_t) le32toh(nesuqp->sq_vbase[wqe_index].wqe_words[NES_IWARP_SQ_WQE_COMP_SCRATCH_LOW_IDX])) | + (((uint64_t) le32toh(nesuqp->sq_vbase[wqe_index].wqe_words[NES_IWARP_SQ_WQE_COMP_SCRATCH_HIGH_IDX]))<<32); + entry->byte_len = le32toh(nesuqp->sq_vbase[wqe_index].wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX]); + + switch (le32toh(nesuqp->sq_vbase[wqe_index]. + wqe_words[NES_IWARP_SQ_WQE_MISC_IDX]) & 0x3f) { + case NES_IWARP_SQ_OP_RDMAW: + /* fprintf(stderr, PFX "%s: Operation = RDMA WRITE.\n", + __FUNCTION__ ); */ + entry->opcode = IBV_WC_RDMA_WRITE; + break; + case NES_IWARP_SQ_OP_RDMAR: + /* fprintf(stderr, PFX "%s: Operation = RDMA READ.\n", + __FUNCTION__ ); */ + entry->opcode = IBV_WC_RDMA_READ; + entry->byte_len = le32toh(nesuqp->sq_vbase[wqe_index]. + wqe_words[NES_IWARP_SQ_WQE_RDMA_LENGTH_IDX]); + break; + case NES_IWARP_SQ_OP_SENDINV: + case NES_IWARP_SQ_OP_SENDSEINV: + case NES_IWARP_SQ_OP_SEND: + case NES_IWARP_SQ_OP_SENDSE: + /* fprintf(stderr, PFX "%s: Operation = Send.\n", + __FUNCTION__ ); */ + entry->opcode = IBV_WC_SEND; + break; + } + + nesuqp->sq_tail = (wqe_index+1)&(nesuqp->sq_size - 1); + if ((entry->status != IBV_WC_SUCCESS) && (nesuqp->sq_tail != nesuqp->sq_head)) { + move_cq_head = 0; + wq_tail = nesuqp->sq_tail; + } + } else { + /* Working on a RQ Completion*/ + entry->byte_len = le32toh(cqe.cqe_words[NES_CQE_PAYLOAD_LENGTH_IDX]); + wrid = ((uint64_t) le32toh(nesuqp->rq_vbase[wqe_index].wqe_words[NES_IWARP_RQ_WQE_COMP_SCRATCH_LOW_IDX])) | + (((uint64_t) le32toh(nesuqp->rq_vbase[wqe_index].wqe_words[NES_IWARP_RQ_WQE_COMP_SCRATCH_HIGH_IDX]))<<32); + entry->opcode = IBV_WC_RECV; + + nesuqp->rq_tail = (wqe_index+1)&(nesuqp->rq_size - 1); + if ((entry->status != IBV_WC_SUCCESS) && (nesuqp->rq_tail != nesuqp->rq_head)) { + move_cq_head = 0; + wq_tail = nesuqp->rq_tail; + } + } + + entry->wr_id = wrid; + entry++; + cqe_count++; + } + + if (move_cq_head) { + nesucq->cqes[head].cqe_words[NES_CQE_OPCODE_IDX] = 0; + if (++head >= cq_size) + head = 0; + nesucq->polled_completions++; + + if ((nesucq->polled_completions > (cq_size/2)) || + (nesucq->polled_completions == 255)) { + if (nesvctx == NULL) + nesvctx = to_nes_uctx(cq->context); + nesvctx->nesupd->udoorbell->cqe_alloc = htole32(nesucq->cq_id | + (nesucq->polled_completions << 16)); + nesucq->polled_completions = 0; + } + } else { + /* Update the wqe index and set status to flush */ + wqe_index = le32toh(cqe.cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX]); + wqe_index = (wqe_index & (~511)) | wq_tail; + nesucq->cqes[head].cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX] = + htole32(wqe_index); + nesucq->cqes[head].cqe_words[NES_CQE_ERROR_CODE_IDX] = + htole32((NES_IWARP_CQE_MAJOR_FLUSH << 16) | NES_IWARP_CQE_MINOR_FLUSH); + move_cq_head = 1; /* ready for next pass */ + } + } + + if (nesucq->polled_completions) { + if (nesvctx == NULL) + nesvctx = to_nes_uctx(cq->context); + nesvctx->nesupd->udoorbell->cqe_alloc = htole32(nesucq->cq_id | + (nesucq->polled_completions << 16)); + nesucq->polled_completions = 0; + } + nesucq->head = head; + + pthread_spin_unlock(&nesucq->lock); + + return cqe_count; +} + +/** + * nes_arm_cq + */ +static void nes_arm_cq(struct nes_ucq *nesucq, struct nes_uvcontext *nesvctx, int sol) +{ + uint32_t cq_arm; + + cq_arm = nesucq->cq_id; + + if (sol) + cq_arm |= NES_CQE_ALLOC_NOTIFY_SE; + else + cq_arm |= NES_CQE_ALLOC_NOTIFY_NEXT; + + nesvctx->nesupd->udoorbell->cqe_alloc = htole32(cq_arm); + nesucq->is_armed = 1; + nesucq->arm_sol = sol; + nesucq->skip_arm = 0; + nesucq->skip_sol = 1; +} + +/** + * nes_uarm_cq + */ +int nes_uarm_cq(struct ibv_cq *cq, int solicited) +{ + struct nes_ucq *nesucq; + struct nes_uvcontext *nesvctx; + + nesucq = to_nes_ucq(cq); + nesvctx = to_nes_uctx(cq->context); + + pthread_spin_lock(&nesucq->lock); + + if (nesucq->is_armed) { + /* don't arm again unless... */ + if ((nesucq->arm_sol) && (!solicited)) { + /* solicited changed from notify SE to notify next */ + nes_arm_cq(nesucq, nesvctx, solicited); + } else { + nesucq->skip_arm = 1; + nesucq->skip_sol &= solicited; + } + } else { + nes_arm_cq(nesucq, nesvctx, solicited); + } + + pthread_spin_unlock(&nesucq->lock); + + return 0; +} + + +/** + * nes_cq_event + */ +void nes_cq_event(struct ibv_cq *cq) +{ + struct nes_ucq *nesucq; + + nesucq = to_nes_ucq(cq); + + pthread_spin_lock(&nesucq->lock); + + if (nesucq->skip_arm) { + struct nes_uvcontext *nesvctx; + nesvctx = to_nes_uctx(cq->context); + nes_arm_cq(nesucq, nesvctx, nesucq->skip_sol); + } else { + nesucq->is_armed = 0; + } + + pthread_spin_unlock(&nesucq->lock); +} + + +/** + * nes_ucreate_srq + */ +struct ibv_srq *nes_ucreate_srq(struct ibv_pd *pd, struct ibv_srq_init_attr *attr) +{ + /* fprintf(stderr, PFX "%s\n", __FUNCTION__); */ + return (void *)-ENOSYS; +} + + +/** + * nes_umodify_srq + */ +int nes_umodify_srq(struct ibv_srq *srq, struct ibv_srq_attr *attr, int attr_mask) +{ + /* fprintf(stderr, PFX "%s\n", __FUNCTION__); */ + return -ENOSYS; +} + + +/** + * nes_udestroy_srq + */ +int nes_udestroy_srq(struct ibv_srq *srq) +{ + /* fprintf(stderr, PFX "%s\n", __FUNCTION__); */ + return -ENOSYS; +} + + +/** + * nes_upost_srq_recv + */ +int nes_upost_srq_recv(struct ibv_srq *ibsrq, struct ibv_recv_wr *wr, + struct ibv_recv_wr **bad_wr) +{ + /* fprintf(stderr, PFX "%s\n", __FUNCTION__); */ + return -ENOSYS; +} + + +/** + * nes_mmapped_qp + * will not invoke registration of memory reqion and will allow + * the kernel module to allocate big chunk of contigous memory + * for sq and rq... returns 1 if succeeds, 0 if fails.. + */ +static int nes_mmapped_qp(struct nes_uqp *nesuqp, struct ibv_pd *pd, struct ibv_qp_init_attr *attr, + struct nes_ucreate_qp_resp *resp) +{ + + unsigned long mmap_offset; + struct nes_ucreate_qp cmd; + struct nes_uvcontext *nesvctx = to_nes_uctx(pd->context); + int ret; + + memset (&cmd, 0, sizeof(cmd) ); + cmd.user_qp_buffer = (__u64) ((uintptr_t) nesuqp); + + /* fprintf(stderr, PFX "%s entering==>\n",__FUNCTION__); */ + ret = ibv_cmd_create_qp(pd, &nesuqp->ibv_qp, attr, &cmd.ibv_cmd, sizeof cmd, + &resp->ibv_resp, sizeof (struct nes_ucreate_qp_resp) ); + if (ret) + return 0; + nesuqp->send_cq = to_nes_ucq(attr->send_cq); + nesuqp->recv_cq = to_nes_ucq(attr->recv_cq); + nesuqp->sq_db_index = resp->mmap_sq_db_index; + nesuqp->rq_db_index = resp->mmap_rq_db_index; + nesuqp->sq_size = resp->actual_sq_size; + nesuqp->rq_size = resp->actual_rq_size; + + /* Map the SQ/RQ buffers */ + mmap_offset = nesvctx->max_pds*page_size; + mmap_offset += (((sizeof(struct nes_hw_qp_wqe) * nesvctx->wq_size) + page_size-1) & + (~(page_size-1)))*nesuqp->sq_db_index; + + nesuqp->sq_vbase = mmap(NULL, (nesuqp->sq_size+nesuqp->rq_size) * + sizeof(struct nes_hw_qp_wqe), PROT_WRITE | PROT_READ, + MAP_SHARED, pd->context->cmd_fd, mmap_offset); + + + if (nesuqp->sq_vbase == MAP_FAILED) { + return 0; + } + nesuqp->rq_vbase = (struct nes_hw_qp_wqe *)(((char *)nesuqp->sq_vbase) + + (nesuqp->sq_size*sizeof(struct nes_hw_qp_wqe))); + *((unsigned int *)nesuqp->sq_vbase) = 0; + nesuqp->mapping = NES_QP_MMAP; + + return 1; +} + + +/** + * nes_vmapped_qp + * invoke registration of memory reqion. This method is used + * when kernel can not allocate qp memory (contigous physical). + * + * returns 1 if succeeds, 0 if fails.. + */ +static int nes_vmapped_qp(struct nes_uqp *nesuqp, struct ibv_pd *pd, struct ibv_qp_init_attr *attr, + struct nes_ucreate_qp_resp *resp, int sqdepth, int rqdepth) +{ + struct nes_ucreate_qp cmd; + struct nes_ureg_mr reg_mr_cmd; + struct ib_uverbs_reg_mr_resp reg_mr_resp; + int totalqpsize; + int ret; + + // fprintf(stderr, PFX "%s\n", __FUNCTION__); + totalqpsize = (sqdepth + rqdepth) * sizeof (struct nes_hw_qp_wqe) ; + nesuqp->sq_vbase = memalign(page_size, totalqpsize); + if (!nesuqp->sq_vbase) { + // fprintf(stderr, PFX "CREATE_QP could not allocate mem of size %d\n", totalqpsize); + return 0; + } + nesuqp->rq_vbase = (struct nes_hw_qp_wqe *) (((char *) nesuqp->sq_vbase) + + (nesuqp->sq_size * sizeof(struct nes_hw_qp_wqe))); + + reg_mr_cmd.reg_type = IWNES_MEMREG_TYPE_QP; + + //fprintf(stderr, PFX "qp_rq_vbase = %p qp_sq_vbase=%p reg_mr = %p\n", + // nesuqp->rq_vbase, nesuqp->sq_vbase, &nesuqp->mr); + + ret = ibv_cmd_reg_mr(pd, (void *)nesuqp->sq_vbase,totalqpsize, + (uintptr_t)nesuqp->sq_vbase, + IBV_ACCESS_LOCAL_WRITE, &nesuqp->vmr, + ®_mr_cmd.ibv_cmd, sizeof(reg_mr_cmd), + ®_mr_resp, sizeof(reg_mr_resp)); + if (ret) { + // fprintf(stderr, PFX "%s ibv_cmd_reg_mr failed (ret = %d).\n", __FUNCTION__, ret); + free((void *) nesuqp->sq_vbase); + return 0; + } + // So now the memory has been registered.. + memset (&cmd, 0, sizeof(cmd) ); + cmd.user_wqe_buffers = (__u64) ((uintptr_t) nesuqp->sq_vbase); + cmd.user_qp_buffer = (__u64) ((uintptr_t) nesuqp); + ret = ibv_cmd_create_qp(pd, &nesuqp->ibv_qp, attr, &cmd.ibv_cmd, sizeof cmd, + &resp->ibv_resp, sizeof (struct nes_ucreate_qp_resp) ); + if (ret) { + ibv_cmd_dereg_mr(&nesuqp->vmr); + free((void *)nesuqp->sq_vbase); + return 0; + } + *((unsigned int *)nesuqp->rq_vbase) = 0; + nesuqp->send_cq = to_nes_ucq(attr->send_cq); + nesuqp->recv_cq = to_nes_ucq(attr->recv_cq); + nesuqp->sq_db_index = resp->mmap_sq_db_index; + nesuqp->rq_db_index = resp->mmap_rq_db_index; + nesuqp->sq_size = resp->actual_sq_size; + nesuqp->rq_size = resp->actual_rq_size; + nesuqp->mapping = NES_QP_VMAP; + return 1; +} + + +/** + * nes_qp_get_qdepth + * This routine will return the size of qdepth to be set for one + * of the qp (sq or rq) + */ +static int nes_qp_get_qdepth(uint32_t qdepth, uint32_t maxsges) +{ + int retdepth; + + /* Do sanity check on the parameters */ + /* Should the following be 510 or 511 */ + if ((qdepth > 510) || (maxsges > 4) ) + return 0; + + /* Do we need to do the following of */ + /* we can just return the actual value.. needed for alignment */ + if (qdepth < 32) + retdepth = 32; + else if (qdepth < 128) + retdepth = 128; + else retdepth = 512; + + return retdepth; +} + + +/** + * nes_ucreate_qp + */ +struct ibv_qp *nes_ucreate_qp(struct ibv_pd *pd, struct ibv_qp_init_attr *attr) +{ + struct nes_ucreate_qp_resp resp; + struct nes_uvcontext *nesvctx = to_nes_uctx(pd->context); + struct nes_uqp *nesuqp; + int sqdepth, rqdepth; + int status = 1; + + /* fprintf(stderr, PFX "%s\n", __FUNCTION__); */ + + /* Sanity check QP size before proceeding */ + sqdepth = nes_qp_get_qdepth(attr->cap.max_send_wr, attr->cap.max_send_sge); + if (!sqdepth) { + fprintf(stderr, PFX "%s Bad sq attr parameters max_send_wr=%d max_send_sge=%d\n", + __FUNCTION__, attr->cap.max_send_wr,attr->cap.max_send_sge); + return NULL; + } + + rqdepth = nes_qp_get_qdepth(attr->cap.max_recv_wr, attr->cap.max_recv_sge); + if (!rqdepth) { + fprintf(stderr, PFX "%s Bad rq attr parameters max_recv_wr=%d max_recv_sge=%d\n", + __FUNCTION__, attr->cap.max_recv_wr,attr->cap.max_recv_sge); + return NULL; + } + + nesuqp = memalign(1024, sizeof(*nesuqp)); + if (!nesuqp) + return NULL; + memset(nesuqp, 0, sizeof(*nesuqp)); + + if (pthread_spin_init(&nesuqp->lock, PTHREAD_PROCESS_PRIVATE)) { + free(nesuqp); + return NULL; + } + + /* Initially setting it up so we will know how much memory to allocate for mapping */ + /* also setting it up in attr.. If we do not want to modify the attr struct, we */ + /* can save the original values and restore them before return. */ + nesuqp->sq_size = attr->cap.max_send_wr = sqdepth; + nesuqp->rq_size = attr->cap.max_recv_wr = rqdepth; + + nesuqp->sq_sig_all = attr->sq_sig_all; + if (nesvctx->virtwq) { + status = nes_vmapped_qp(nesuqp,pd, attr,&resp,sqdepth,rqdepth); + }else { + status = nes_mmapped_qp(nesuqp,pd,attr, &resp); + } + + if (!status) { + pthread_spin_destroy(&nesuqp->lock); + free(nesuqp); + return NULL; + } + + + /* The following are the common parameters no matter how the */ + /* sq and rq memory was mapped.. */ + + /* Account for LSMM, in theory, could get overrun if app preposts to SQ */ + nesuqp->sq_head = 1; + nesuqp->sq_tail = 1; + nesuqp->qp_id = resp.qp_id; + nesuqp->nes_drv_opt = resp.nes_drv_opt; + nesuqp->ibv_qp.qp_num = resp.qp_id; + nesuqp->rdma0_msg = 1; + + return &nesuqp->ibv_qp; +} + + +/** + * nes_uquery_qp + */ +int nes_uquery_qp(struct ibv_qp *qp, struct ibv_qp_attr *attr, + int attr_mask, struct ibv_qp_init_attr *init_attr) +{ + struct ibv_query_qp cmd; + + /* fprintf(stderr, PFX "nes_uquery_qp: calling ibv_cmd_query_qp\n"); */ + + return ibv_cmd_query_qp(qp, attr, attr_mask, init_attr, &cmd, sizeof(cmd)); +} + + +/** + * nes_umodify_qp + */ +int nes_umodify_qp(struct ibv_qp *qp, struct ibv_qp_attr *attr, int attr_mask) +{ + struct ibv_modify_qp cmd = {}; + return ibv_cmd_modify_qp(qp, attr, attr_mask, &cmd, sizeof cmd); +} + + +/** + * nes_clean_cq + */ +static void nes_clean_cq(struct nes_uqp *nesuqp, struct nes_ucq *nesucq) +{ + uint32_t cq_head; + uint32_t lo; + uint32_t hi; + uint64_t u64temp; + + pthread_spin_lock(&nesucq->lock); + + cq_head = nesucq->head; + while (le32toh(nesucq->cqes[cq_head].cqe_words[NES_CQE_OPCODE_IDX]) & NES_CQE_VALID) { + udma_from_device_barrier(); + lo = le32toh(nesucq->cqes[cq_head].cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX]); + hi = le32toh(nesucq->cqes[cq_head].cqe_words[NES_CQE_COMP_COMP_CTX_HIGH_IDX]); + u64temp = (((uint64_t)hi) << 32) | ((uint64_t)lo); + u64temp &= (~1023); + if (u64temp == (uint64_t)(uintptr_t)nesuqp) { + /* Zero the context value so cqe will be ignored */ + nesucq->cqes[cq_head].cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX] = 0; + nesucq->cqes[cq_head].cqe_words[NES_CQE_COMP_COMP_CTX_HIGH_IDX] = 0; + } + + if (++cq_head >= nesucq->size) + cq_head = 0; + } + + pthread_spin_unlock(&nesucq->lock); +} + + +/** + * nes_udestroy_qp + */ +int nes_udestroy_qp(struct ibv_qp *qp) +{ + struct nes_uqp *nesuqp = to_nes_uqp(qp); + int ret = 0; + + // fprintf(stderr, PFX "%s addr&mr= %p \n", __FUNCTION__, &nesuqp->mr ); + + if (nesuqp->mapping == NES_QP_VMAP) { + ret = ibv_cmd_dereg_mr(&nesuqp->vmr); + if (ret) + fprintf(stderr, PFX "%s dereg_mr FAILED\n", __FUNCTION__); + free((void *)nesuqp->sq_vbase); + } + + if (nesuqp->mapping == NES_QP_MMAP) { + munmap((void *)nesuqp->sq_vbase, (nesuqp->sq_size+nesuqp->rq_size) * + sizeof(struct nes_hw_qp_wqe)); + } + + ret = ibv_cmd_destroy_qp(qp); + if (ret) { + fprintf(stderr, PFX "%s FAILED\n", __FUNCTION__); + return ret; + } + + pthread_spin_destroy(&nesuqp->lock); + + /* Clean any pending completions from the cq(s) */ + if (nesuqp->send_cq) + nes_clean_cq(nesuqp, nesuqp->send_cq); + + if ((nesuqp->recv_cq) && (nesuqp->recv_cq != nesuqp->send_cq)) + nes_clean_cq(nesuqp, nesuqp->recv_cq); + free(nesuqp); + + return 0; +} + +/** + * nes_upost_send + */ +int nes_upost_send(struct ibv_qp *ib_qp, struct ibv_send_wr *ib_wr, + struct ibv_send_wr **bad_wr) +{ + uint64_t u64temp; + struct nes_uqp *nesuqp = to_nes_uqp(ib_qp); + struct nes_upd *nesupd = to_nes_upd(ib_qp->pd); + struct nes_hw_qp_wqe volatile *wqe; + uint32_t head; + uint32_t qsize = nesuqp->sq_size; + uint32_t counter; + uint32_t err = 0; + uint32_t wqe_count = 0; + uint32_t outstanding_wqes; + uint32_t total_payload_length = 0; + int sge_index; + + pthread_spin_lock(&nesuqp->lock); + udma_to_device_barrier(); + + head = nesuqp->sq_head; + while (ib_wr) { + if (unlikely(nesuqp->qperr)) { + err = -EINVAL; + break; + } + + /* Check for SQ overflow */ + outstanding_wqes = head + (2 * qsize) - nesuqp->sq_tail; + outstanding_wqes &= qsize - 1; + if (unlikely(outstanding_wqes == (qsize - 1))) { + err = -EINVAL; + break; + } + if (unlikely(ib_wr->num_sge > 4)) { + err = -EINVAL; + break; + } + + wqe = (struct nes_hw_qp_wqe *)&nesuqp->sq_vbase[head]; + /* fprintf(stderr, PFX "%s: QP%u: processing sq wqe at %p, head = %u.\n", + __FUNCTION__, nesuqp->qp_id, wqe, head); */ + u64temp = (uint64_t) ib_wr->wr_id; + wqe->wqe_words[NES_IWARP_SQ_WQE_COMP_SCRATCH_LOW_IDX] = htole32((uint32_t)u64temp); + wqe->wqe_words[NES_IWARP_SQ_WQE_COMP_SCRATCH_HIGH_IDX] = htole32((uint32_t)(u64temp>>32)); + u64temp = (uint64_t)((uintptr_t)nesuqp); + wqe->wqe_words[NES_IWARP_SQ_WQE_COMP_CTX_LOW_IDX] = htole32((uint32_t)u64temp); + wqe->wqe_words[NES_IWARP_SQ_WQE_COMP_CTX_HIGH_IDX] = htole32((uint32_t)(u64temp>>32)); + udma_ordering_write_barrier(); + wqe->wqe_words[NES_IWARP_SQ_WQE_COMP_CTX_LOW_IDX] |= htole32(head); + + switch (ib_wr->opcode) { + case IBV_WR_SEND: + case IBV_WR_SEND_WITH_IMM: + /* fprintf(stderr, PFX "%s: QP%u: processing sq wqe%u. Opcode = %s\n", + __FUNCTION__, nesuqp->qp_id, head, "Send"); */ + if (ib_wr->send_flags & IBV_SEND_SOLICITED) { + wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] = htole32(NES_IWARP_SQ_OP_SENDSE); + } else { + wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] = htole32(NES_IWARP_SQ_OP_SEND); + } + + if (ib_wr->send_flags & IBV_SEND_FENCE) { + wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] |= htole32(NES_IWARP_SQ_WQE_READ_FENCE); + } + + /* if (ib_wr->send_flags & IBV_SEND_INLINE) { + fprintf(stderr, PFX "%s: Send SEND_INLINE, length=%d\n", + __FUNCTION__, ib_wr->sg_list[0].length); + } */ + if ((ib_wr->send_flags & IBV_SEND_INLINE) && (ib_wr->sg_list[0].length <= 64) && + ((nesuqp->nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) == 0) && + (ib_wr->num_sge == 1)) { + memcpy((void *)&wqe->wqe_words[NES_IWARP_SQ_WQE_IMM_DATA_START_IDX], + (void *)(intptr_t)ib_wr->sg_list[0].addr, ib_wr->sg_list[0].length); + wqe->wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX] = htole32(ib_wr->sg_list[0].length); + wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] |= htole32(NES_IWARP_SQ_WQE_IMM_DATA); + } else { + total_payload_length = 0; + for (sge_index=0; sge_index < ib_wr->num_sge; sge_index++) { + wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_LOW_IDX+(sge_index*4)] = + htole32((uint32_t)ib_wr->sg_list[sge_index].addr); + wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_HIGH_IDX+(sge_index*4)] = + htole32((uint32_t)(ib_wr->sg_list[sge_index].addr>>32)); + wqe->wqe_words[NES_IWARP_SQ_WQE_LENGTH0_IDX+(sge_index*4)] = + htole32(ib_wr->sg_list[sge_index].length); + wqe->wqe_words[NES_IWARP_SQ_WQE_STAG0_IDX+(sge_index*4)] = + htole32(ib_wr->sg_list[sge_index].lkey); + total_payload_length += ib_wr->sg_list[sge_index].length; + } + wqe->wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX] = + htole32(total_payload_length); + } + + break; + case IBV_WR_RDMA_WRITE: + case IBV_WR_RDMA_WRITE_WITH_IMM: + /* fprintf(stderr, PFX "%s:QP%u: processing sq wqe%u. Opcode = %s\n", + __FUNCTION__, nesuqp->qp_id, head, "Write"); */ + wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] = htole32(NES_IWARP_SQ_OP_RDMAW); + + if (ib_wr->send_flags & IBV_SEND_FENCE) { + wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] |= htole32(NES_IWARP_SQ_WQE_READ_FENCE); + } + wqe->wqe_words[NES_IWARP_SQ_WQE_RDMA_STAG_IDX] = htole32(ib_wr->wr.rdma.rkey); + wqe->wqe_words[NES_IWARP_SQ_WQE_RDMA_TO_LOW_IDX] = htole32( + (uint32_t)ib_wr->wr.rdma.remote_addr); + wqe->wqe_words[NES_IWARP_SQ_WQE_RDMA_TO_HIGH_IDX] = htole32( + (uint32_t)(ib_wr->wr.rdma.remote_addr>>32)); + + /* if (ib_wr->send_flags & IBV_SEND_INLINE) { + fprintf(stderr, PFX "%s: Write SEND_INLINE, length=%d\n", + __FUNCTION__, ib_wr->sg_list[0].length); + } */ + if ((ib_wr->send_flags & IBV_SEND_INLINE) && (ib_wr->sg_list[0].length <= 64) && + ((nesuqp->nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) == 0) && + (ib_wr->num_sge == 1)) { + memcpy((void *)&wqe->wqe_words[NES_IWARP_SQ_WQE_IMM_DATA_START_IDX], + (void *)(intptr_t)ib_wr->sg_list[0].addr, ib_wr->sg_list[0].length); + wqe->wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX] = htole32(ib_wr->sg_list[0].length); + wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] |= htole32(NES_IWARP_SQ_WQE_IMM_DATA); + } else { + total_payload_length = 0; + for (sge_index=0; sge_index < ib_wr->num_sge; sge_index++) { + wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_LOW_IDX+(sge_index*4)] = htole32( + (uint32_t)ib_wr->sg_list[sge_index].addr); + wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_HIGH_IDX+(sge_index*4)] = htole32( + (uint32_t)(ib_wr->sg_list[sge_index].addr>>32)); + wqe->wqe_words[NES_IWARP_SQ_WQE_LENGTH0_IDX+(sge_index*4)] = htole32( + ib_wr->sg_list[sge_index].length); + wqe->wqe_words[NES_IWARP_SQ_WQE_STAG0_IDX+(sge_index*4)] = htole32( + ib_wr->sg_list[sge_index].lkey); + total_payload_length += ib_wr->sg_list[sge_index].length; + } + wqe->wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX] = htole32(total_payload_length); + } + wqe->wqe_words[NES_IWARP_SQ_WQE_RDMA_LENGTH_IDX] = + wqe->wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX]; + break; + case IBV_WR_RDMA_READ: + /* fprintf(stderr, PFX "%s:QP%u:processing sq wqe%u. Opcode = %s\n", + __FUNCTION__, nesuqp->qp_id, head, "Read"); */ + /* IWarp only supports 1 sge for RDMA reads */ + if (ib_wr->num_sge > 1) { + err = -EINVAL; + break; + } + wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] = htole32(NES_IWARP_SQ_OP_RDMAR); + wqe->wqe_words[NES_IWARP_SQ_WQE_RDMA_TO_LOW_IDX] = htole32((uint32_t)ib_wr->wr.rdma.remote_addr); + wqe->wqe_words[NES_IWARP_SQ_WQE_RDMA_TO_HIGH_IDX] = htole32((uint32_t)(ib_wr->wr.rdma.remote_addr>>32)); + wqe->wqe_words[NES_IWARP_SQ_WQE_RDMA_STAG_IDX] = htole32(ib_wr->wr.rdma.rkey); + wqe->wqe_words[NES_IWARP_SQ_WQE_RDMA_LENGTH_IDX] = htole32(ib_wr->sg_list->length); + wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_LOW_IDX] = htole32((uint32_t)ib_wr->sg_list->addr); + wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_HIGH_IDX] = htole32((uint32_t)(ib_wr->sg_list->addr>>32)); + wqe->wqe_words[NES_IWARP_SQ_WQE_STAG0_IDX] = htole32(ib_wr->sg_list->lkey); + break; + default: + /* error */ + err = -EINVAL; + break; + } + + if ((ib_wr->send_flags & IBV_SEND_SIGNALED) || nesuqp->sq_sig_all) { + /* fprintf(stderr, PFX "%s:sq wqe%u is signalled\n", __FUNCTION__, head); */ + wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] |= htole32(NES_IWARP_SQ_WQE_SIGNALED_COMPL); + } + ib_wr = ib_wr->next; + head++; + wqe_count++; + if (head >= qsize) + head = 0; + } + + nesuqp->sq_head = head; + udma_to_device_barrier(); + while (wqe_count) { + counter = (wqe_count<(uint32_t)255) ? wqe_count : 255; + wqe_count -= counter; + nesupd->udoorbell->wqe_alloc = htole32((counter<<24) | 0x00800000 | nesuqp->qp_id); + } + + if (err) + *bad_wr = ib_wr; + + pthread_spin_unlock(&nesuqp->lock); + + return err; +} + +/** + * nes_upost_recv + */ +int nes_upost_recv(struct ibv_qp *ib_qp, struct ibv_recv_wr *ib_wr, + struct ibv_recv_wr **bad_wr) +{ + uint64_t u64temp; + struct nes_uqp *nesuqp = to_nes_uqp(ib_qp); + struct nes_upd *nesupd = to_nes_upd(ib_qp->pd); + struct nes_hw_qp_wqe *wqe; + uint32_t head; + uint32_t qsize = nesuqp->rq_size; + uint32_t counter; + uint32_t err = 0; + uint32_t wqe_count = 0; + uint32_t outstanding_wqes; + uint32_t total_payload_length; + int sge_index; + + if (unlikely(ib_wr->num_sge > 4)) { + *bad_wr = ib_wr; + return -EINVAL; + } + + pthread_spin_lock(&nesuqp->lock); + udma_to_device_barrier(); + + head = nesuqp->rq_head; + while (ib_wr) { + if (unlikely(nesuqp->qperr)) { + err = -EINVAL; + break; + } + + /* Check for RQ overflow */ + outstanding_wqes = head + (2 * qsize) - nesuqp->rq_tail; + outstanding_wqes &= qsize - 1; + if (unlikely(outstanding_wqes == (qsize - 1))) { + err = -EINVAL; + break; + } + + wqe = (struct nes_hw_qp_wqe *)&nesuqp->rq_vbase[head]; + u64temp = ib_wr->wr_id; + wqe->wqe_words[NES_IWARP_RQ_WQE_COMP_SCRATCH_LOW_IDX] = + htole32((uint32_t)u64temp); + wqe->wqe_words[NES_IWARP_RQ_WQE_COMP_SCRATCH_HIGH_IDX] = + htole32((uint32_t)(u64temp >> 32)); + u64temp = (uint64_t)((uintptr_t)nesuqp); + wqe->wqe_words[NES_IWARP_RQ_WQE_COMP_CTX_LOW_IDX] = + htole32((uint32_t)u64temp); + wqe->wqe_words[NES_IWARP_RQ_WQE_COMP_CTX_HIGH_IDX] = + htole32((uint32_t)(u64temp >> 32)); + udma_ordering_write_barrier(); + wqe->wqe_words[NES_IWARP_RQ_WQE_COMP_CTX_LOW_IDX] |= htole32(head); + + total_payload_length = 0; + for (sge_index=0; sge_index < ib_wr->num_sge; sge_index++) { + wqe->wqe_words[NES_IWARP_RQ_WQE_FRAG0_LOW_IDX+(sge_index*4)] = + htole32((uint32_t)ib_wr->sg_list[sge_index].addr); + wqe->wqe_words[NES_IWARP_RQ_WQE_FRAG0_HIGH_IDX+(sge_index*4)] = + htole32((uint32_t)(ib_wr->sg_list[sge_index].addr>>32)); + wqe->wqe_words[NES_IWARP_RQ_WQE_LENGTH0_IDX+(sge_index*4)] = + htole32(ib_wr->sg_list[sge_index].length); + wqe->wqe_words[NES_IWARP_RQ_WQE_STAG0_IDX+(sge_index*4)] = + htole32(ib_wr->sg_list[sge_index].lkey); + total_payload_length += ib_wr->sg_list[sge_index].length; + } + wqe->wqe_words[NES_IWARP_RQ_WQE_TOTAL_PAYLOAD_IDX] = htole32(total_payload_length); + + ib_wr = ib_wr->next; + head++; + wqe_count++; + if (head >= qsize) + head = 0; + } + + nesuqp->rq_head = head; + udma_to_device_barrier(); + while (wqe_count) { + counter = (wqe_count<(uint32_t)255) ? wqe_count : 255; + wqe_count -= counter; + nesupd->udoorbell->wqe_alloc = htole32((counter << 24) | nesuqp->qp_id); + } + + if (err) + *bad_wr = ib_wr; + + pthread_spin_unlock(&nesuqp->lock); + + return err; +} + + +/** + * nes_ucreate_ah + */ +struct ibv_ah *nes_ucreate_ah(struct ibv_pd *pd, struct ibv_ah_attr *attr) +{ + /* fprintf(stderr, PFX "%s\n", __FUNCTION__); */ + return (void *)-ENOSYS; +} + + +/** + * nes_udestroy_ah + */ +int nes_udestroy_ah(struct ibv_ah *ah) +{ + /* fprintf(stderr, PFX "%s\n", __FUNCTION__); */ + return -ENOSYS; +} + + +/** + * nes_uattach_mcast + */ +int nes_uattach_mcast(struct ibv_qp *qp, const union ibv_gid *gid, uint16_t lid) +{ + int ret = 0; + ret = ibv_cmd_attach_mcast(qp, gid, lid); + nes_debug(NES_DBG_UD, "%s ret=%d\n", __func__, ret); + return ret; +} + + +/** + * nes_udetach_mcast + */ +int nes_udetach_mcast(struct ibv_qp *qp, const union ibv_gid *gid, uint16_t lid) +{ + int ret = 0; + ret = ibv_cmd_detach_mcast(qp, gid, lid); + nes_debug(NES_DBG_UD, "%s ret=%d\n", __func__, ret); + return ret; +} + +/** + * nes_async_event + */ +void nes_async_event(struct ibv_context *context, + struct ibv_async_event *event) +{ + struct nes_uqp *nesuqp; + + switch (event->event_type) { + case IBV_EVENT_QP_FATAL: + case IBV_EVENT_QP_ACCESS_ERR: + /* Do not let application queue anything else to the qp */ + nesuqp = to_nes_uqp(event->element.qp); + nesuqp->qperr = 1; + break; + + default: + break; + } +} diff --git redhat/rdma-core.spec redhat/rdma-core.spec index 45e5bc10493b..e0b143364991 100644 --- redhat/rdma-core.spec +++ redhat/rdma-core.spec @@ -144,6 +144,8 @@ Provides: libmlx5 = %{version}-%{release} Obsoletes: libmlx5 < %{version}-%{release} Provides: libmthca = %{version}-%{release} Obsoletes: libmthca < %{version}-%{release} +Provides: libnes = %{version}-%{release} +Obsoletes: libnes < %{version}-%{release} Provides: libocrdma = %{version}-%{release} Obsoletes: libocrdma < %{version}-%{release} Provides: librxe = %{version}-%{release} @@ -167,6 +169,7 @@ Device-specific plug-in ibverbs userspace drivers are included: - libmlx4: Mellanox ConnectX-3 InfiniBand HCA - libmlx5: Mellanox Connect-IB/X-4+ InfiniBand HCA - libmthca: Mellanox InfiniBand HCA +- libnes: NetEffect RNIC - libocrdma: Emulex OneConnect RDMA/RoCE Device - libqedr: QLogic QL4xxx RoCE HCA - librxe: A software implementation of the RoCE protocol diff --git suse/rdma-core.spec suse/rdma-core.spec index 529968b4005a..a32d8f9cb966 100644 --- suse/rdma-core.spec +++ suse/rdma-core.spec @@ -190,6 +190,7 @@ Obsoletes: libipathverbs-rdmav2 < %{version}-%{release} Obsoletes: libmlx4-rdmav2 < %{version}-%{release} Obsoletes: libmlx5-rdmav2 < %{version}-%{release} Obsoletes: libmthca-rdmav2 < %{version}-%{release} +Obsoletes: libnes-rdmav2 < %{version}-%{release} Obsoletes: libocrdma-rdmav2 < %{version}-%{release} Obsoletes: librxe-rdmav2 < %{version}-%{release} %if 0%{?dma_coherent} @@ -219,6 +220,7 @@ Device-specific plug-in ibverbs userspace drivers are included: - libmlx4: Mellanox ConnectX-3 InfiniBand HCA - libmlx5: Mellanox Connect-IB/X-4+ InfiniBand HCA - libmthca: Mellanox InfiniBand HCA +- libnes: NetEffect RNIC - libocrdma: Emulex OneConnect RDMA/RoCE Device - libqedr: QLogic QL4xxx RoCE HCA - librxe: A software implementation of the RoCE protocol
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