Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Lijun Ou | 1929 | 75.47% | 4 | 15.38% |
Yixian Liu | 281 | 10.99% | 5 | 19.23% |
Wei Hu (Xavier) | 152 | 5.95% | 7 | 26.92% |
Shaobo Xu | 115 | 4.50% | 3 | 11.54% |
shamir rabinovitch | 39 | 1.53% | 3 | 11.54% |
Matthew Wilcox | 30 | 1.17% | 1 | 3.85% |
Jason Gunthorpe | 6 | 0.23% | 1 | 3.85% |
Artemy Kovalyov | 3 | 0.12% | 1 | 3.85% |
Leon Romanovsky | 1 | 0.04% | 1 | 3.85% |
Total | 2556 | 26 |
/* * Copyright (c) 2016 Hisilicon Limited. * * 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. */ #include <linux/platform_device.h> #include <rdma/ib_umem.h> #include <rdma/uverbs_ioctl.h> #include "hns_roce_device.h" #include "hns_roce_cmd.h" #include "hns_roce_hem.h" #include <rdma/hns-abi.h> #include "hns_roce_common.h" static void hns_roce_ib_cq_comp(struct hns_roce_cq *hr_cq) { struct ib_cq *ibcq = &hr_cq->ib_cq; ibcq->comp_handler(ibcq, ibcq->cq_context); } static void hns_roce_ib_cq_event(struct hns_roce_cq *hr_cq, enum hns_roce_event event_type) { struct hns_roce_dev *hr_dev; struct ib_event event; struct ib_cq *ibcq; ibcq = &hr_cq->ib_cq; hr_dev = to_hr_dev(ibcq->device); if (event_type != HNS_ROCE_EVENT_TYPE_CQ_ID_INVALID && event_type != HNS_ROCE_EVENT_TYPE_CQ_ACCESS_ERROR && event_type != HNS_ROCE_EVENT_TYPE_CQ_OVERFLOW) { dev_err(hr_dev->dev, "hns_roce_ib: Unexpected event type 0x%x on CQ %06lx\n", event_type, hr_cq->cqn); return; } if (ibcq->event_handler) { event.device = ibcq->device; event.event = IB_EVENT_CQ_ERR; event.element.cq = ibcq; ibcq->event_handler(&event, ibcq->cq_context); } } static int hns_roce_sw2hw_cq(struct hns_roce_dev *dev, struct hns_roce_cmd_mailbox *mailbox, unsigned long cq_num) { return hns_roce_cmd_mbox(dev, mailbox->dma, 0, cq_num, 0, HNS_ROCE_CMD_SW2HW_CQ, HNS_ROCE_CMD_TIMEOUT_MSECS); } static int hns_roce_cq_alloc(struct hns_roce_dev *hr_dev, int nent, struct hns_roce_mtt *hr_mtt, struct hns_roce_uar *hr_uar, struct hns_roce_cq *hr_cq, int vector) { struct hns_roce_cmd_mailbox *mailbox; struct hns_roce_hem_table *mtt_table; struct hns_roce_cq_table *cq_table; struct device *dev = hr_dev->dev; dma_addr_t dma_handle; u64 *mtts; int ret; cq_table = &hr_dev->cq_table; /* Get the physical address of cq buf */ if (hns_roce_check_whether_mhop(hr_dev, HEM_TYPE_CQE)) mtt_table = &hr_dev->mr_table.mtt_cqe_table; else mtt_table = &hr_dev->mr_table.mtt_table; mtts = hns_roce_table_find(hr_dev, mtt_table, hr_mtt->first_seg, &dma_handle); if (!mtts) { dev_err(dev, "CQ alloc.Failed to find cq buf addr.\n"); return -EINVAL; } if (vector >= hr_dev->caps.num_comp_vectors) { dev_err(dev, "CQ alloc.Invalid vector.\n"); return -EINVAL; } hr_cq->vector = vector; ret = hns_roce_bitmap_alloc(&cq_table->bitmap, &hr_cq->cqn); if (ret == -1) { dev_err(dev, "CQ alloc.Failed to alloc index.\n"); return -ENOMEM; } /* Get CQC memory HEM(Hardware Entry Memory) table */ ret = hns_roce_table_get(hr_dev, &cq_table->table, hr_cq->cqn); if (ret) { dev_err(dev, "CQ alloc.Failed to get context mem.\n"); goto err_out; } ret = xa_err(xa_store(&cq_table->array, hr_cq->cqn, hr_cq, GFP_KERNEL)); if (ret) { dev_err(dev, "CQ alloc failed xa_store.\n"); goto err_put; } /* Allocate mailbox memory */ mailbox = hns_roce_alloc_cmd_mailbox(hr_dev); if (IS_ERR(mailbox)) { ret = PTR_ERR(mailbox); goto err_xa; } hr_dev->hw->write_cqc(hr_dev, hr_cq, mailbox->buf, mtts, dma_handle, nent, vector); /* Send mailbox to hw */ ret = hns_roce_sw2hw_cq(hr_dev, mailbox, hr_cq->cqn); hns_roce_free_cmd_mailbox(hr_dev, mailbox); if (ret) { dev_err(dev, "CQ alloc.Failed to cmd mailbox.\n"); goto err_xa; } hr_cq->cons_index = 0; hr_cq->arm_sn = 1; hr_cq->uar = hr_uar; atomic_set(&hr_cq->refcount, 1); init_completion(&hr_cq->free); return 0; err_xa: xa_erase(&cq_table->array, hr_cq->cqn); err_put: hns_roce_table_put(hr_dev, &cq_table->table, hr_cq->cqn); err_out: hns_roce_bitmap_free(&cq_table->bitmap, hr_cq->cqn, BITMAP_NO_RR); return ret; } static int hns_roce_hw2sw_cq(struct hns_roce_dev *dev, struct hns_roce_cmd_mailbox *mailbox, unsigned long cq_num) { return hns_roce_cmd_mbox(dev, 0, mailbox ? mailbox->dma : 0, cq_num, mailbox ? 0 : 1, HNS_ROCE_CMD_HW2SW_CQ, HNS_ROCE_CMD_TIMEOUT_MSECS); } void hns_roce_free_cq(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq) { struct hns_roce_cq_table *cq_table = &hr_dev->cq_table; struct device *dev = hr_dev->dev; int ret; ret = hns_roce_hw2sw_cq(hr_dev, NULL, hr_cq->cqn); if (ret) dev_err(dev, "HW2SW_CQ failed (%d) for CQN %06lx\n", ret, hr_cq->cqn); xa_erase(&cq_table->array, hr_cq->cqn); /* Waiting interrupt process procedure carried out */ synchronize_irq(hr_dev->eq_table.eq[hr_cq->vector].irq); /* wait for all interrupt processed */ if (atomic_dec_and_test(&hr_cq->refcount)) complete(&hr_cq->free); wait_for_completion(&hr_cq->free); hns_roce_table_put(hr_dev, &cq_table->table, hr_cq->cqn); hns_roce_bitmap_free(&cq_table->bitmap, hr_cq->cqn, BITMAP_NO_RR); } EXPORT_SYMBOL_GPL(hns_roce_free_cq); static int hns_roce_ib_get_cq_umem(struct hns_roce_dev *hr_dev, struct ib_udata *udata, struct hns_roce_cq_buf *buf, struct ib_umem **umem, u64 buf_addr, int cqe) { int ret; u32 page_shift; u32 npages; *umem = ib_umem_get(udata, buf_addr, cqe * hr_dev->caps.cq_entry_sz, IB_ACCESS_LOCAL_WRITE, 1); if (IS_ERR(*umem)) return PTR_ERR(*umem); if (hns_roce_check_whether_mhop(hr_dev, HEM_TYPE_CQE)) buf->hr_mtt.mtt_type = MTT_TYPE_CQE; else buf->hr_mtt.mtt_type = MTT_TYPE_WQE; if (hr_dev->caps.cqe_buf_pg_sz) { npages = (ib_umem_page_count(*umem) + (1 << hr_dev->caps.cqe_buf_pg_sz) - 1) / (1 << hr_dev->caps.cqe_buf_pg_sz); page_shift = PAGE_SHIFT + hr_dev->caps.cqe_buf_pg_sz; ret = hns_roce_mtt_init(hr_dev, npages, page_shift, &buf->hr_mtt); } else { ret = hns_roce_mtt_init(hr_dev, ib_umem_page_count(*umem), (*umem)->page_shift, &buf->hr_mtt); } if (ret) goto err_buf; ret = hns_roce_ib_umem_write_mtt(hr_dev, &buf->hr_mtt, *umem); if (ret) goto err_mtt; return 0; err_mtt: hns_roce_mtt_cleanup(hr_dev, &buf->hr_mtt); err_buf: ib_umem_release(*umem); return ret; } static int hns_roce_ib_alloc_cq_buf(struct hns_roce_dev *hr_dev, struct hns_roce_cq_buf *buf, u32 nent) { int ret; u32 page_shift = PAGE_SHIFT + hr_dev->caps.cqe_buf_pg_sz; ret = hns_roce_buf_alloc(hr_dev, nent * hr_dev->caps.cq_entry_sz, (1 << page_shift) * 2, &buf->hr_buf, page_shift); if (ret) goto out; if (hns_roce_check_whether_mhop(hr_dev, HEM_TYPE_CQE)) buf->hr_mtt.mtt_type = MTT_TYPE_CQE; else buf->hr_mtt.mtt_type = MTT_TYPE_WQE; ret = hns_roce_mtt_init(hr_dev, buf->hr_buf.npages, buf->hr_buf.page_shift, &buf->hr_mtt); if (ret) goto err_buf; ret = hns_roce_buf_write_mtt(hr_dev, &buf->hr_mtt, &buf->hr_buf); if (ret) goto err_mtt; return 0; err_mtt: hns_roce_mtt_cleanup(hr_dev, &buf->hr_mtt); err_buf: hns_roce_buf_free(hr_dev, nent * hr_dev->caps.cq_entry_sz, &buf->hr_buf); out: return ret; } static void hns_roce_ib_free_cq_buf(struct hns_roce_dev *hr_dev, struct hns_roce_cq_buf *buf, int cqe) { hns_roce_buf_free(hr_dev, (cqe + 1) * hr_dev->caps.cq_entry_sz, &buf->hr_buf); } struct ib_cq *hns_roce_ib_create_cq(struct ib_device *ib_dev, const struct ib_cq_init_attr *attr, struct ib_udata *udata) { struct hns_roce_dev *hr_dev = to_hr_dev(ib_dev); struct device *dev = hr_dev->dev; struct hns_roce_ib_create_cq ucmd; struct hns_roce_ib_create_cq_resp resp = {}; struct hns_roce_cq *hr_cq = NULL; struct hns_roce_uar *uar = NULL; int vector = attr->comp_vector; int cq_entries = attr->cqe; int ret; struct hns_roce_ucontext *context = rdma_udata_to_drv_context( udata, struct hns_roce_ucontext, ibucontext); if (cq_entries < 1 || cq_entries > hr_dev->caps.max_cqes) { dev_err(dev, "Creat CQ failed. entries=%d, max=%d\n", cq_entries, hr_dev->caps.max_cqes); return ERR_PTR(-EINVAL); } hr_cq = kzalloc(sizeof(*hr_cq), GFP_KERNEL); if (!hr_cq) return ERR_PTR(-ENOMEM); if (hr_dev->caps.min_cqes) cq_entries = max(cq_entries, hr_dev->caps.min_cqes); cq_entries = roundup_pow_of_two((unsigned int)cq_entries); hr_cq->ib_cq.cqe = cq_entries - 1; spin_lock_init(&hr_cq->lock); if (udata) { if (ib_copy_from_udata(&ucmd, udata, sizeof(ucmd))) { dev_err(dev, "Failed to copy_from_udata.\n"); ret = -EFAULT; goto err_cq; } /* Get user space address, write it into mtt table */ ret = hns_roce_ib_get_cq_umem(hr_dev, udata, &hr_cq->hr_buf, &hr_cq->umem, ucmd.buf_addr, cq_entries); if (ret) { dev_err(dev, "Failed to get_cq_umem.\n"); goto err_cq; } if ((hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB) && (udata->outlen >= sizeof(resp))) { ret = hns_roce_db_map_user(context, udata, ucmd.db_addr, &hr_cq->db); if (ret) { dev_err(dev, "cq record doorbell map failed!\n"); goto err_mtt; } hr_cq->db_en = 1; resp.cap_flags |= HNS_ROCE_SUPPORT_CQ_RECORD_DB; } /* Get user space parameters */ uar = &context->uar; } else { if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB) { ret = hns_roce_alloc_db(hr_dev, &hr_cq->db, 1); if (ret) goto err_cq; hr_cq->set_ci_db = hr_cq->db.db_record; *hr_cq->set_ci_db = 0; hr_cq->db_en = 1; } /* Init mmt table and write buff address to mtt table */ ret = hns_roce_ib_alloc_cq_buf(hr_dev, &hr_cq->hr_buf, cq_entries); if (ret) { dev_err(dev, "Failed to alloc_cq_buf.\n"); goto err_db; } uar = &hr_dev->priv_uar; hr_cq->cq_db_l = hr_dev->reg_base + hr_dev->odb_offset + DB_REG_OFFSET * uar->index; } /* Allocate cq index, fill cq_context */ ret = hns_roce_cq_alloc(hr_dev, cq_entries, &hr_cq->hr_buf.hr_mtt, uar, hr_cq, vector); if (ret) { dev_err(dev, "Creat CQ .Failed to cq_alloc.\n"); goto err_dbmap; } /* * For the QP created by kernel space, tptr value should be initialized * to zero; For the QP created by user space, it will cause synchronous * problems if tptr is set to zero here, so we initialze it in user * space. */ if (!udata && hr_cq->tptr_addr) *hr_cq->tptr_addr = 0; /* Get created cq handler and carry out event */ hr_cq->comp = hns_roce_ib_cq_comp; hr_cq->event = hns_roce_ib_cq_event; hr_cq->cq_depth = cq_entries; if (udata) { resp.cqn = hr_cq->cqn; ret = ib_copy_to_udata(udata, &resp, sizeof(resp)); if (ret) goto err_cqc; } return &hr_cq->ib_cq; err_cqc: hns_roce_free_cq(hr_dev, hr_cq); err_dbmap: if (udata && (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB) && (udata->outlen >= sizeof(resp))) hns_roce_db_unmap_user(context, &hr_cq->db); err_mtt: hns_roce_mtt_cleanup(hr_dev, &hr_cq->hr_buf.hr_mtt); if (udata) ib_umem_release(hr_cq->umem); else hns_roce_ib_free_cq_buf(hr_dev, &hr_cq->hr_buf, hr_cq->ib_cq.cqe); err_db: if (!udata && (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB)) hns_roce_free_db(hr_dev, &hr_cq->db); err_cq: kfree(hr_cq); return ERR_PTR(ret); } EXPORT_SYMBOL_GPL(hns_roce_ib_create_cq); int hns_roce_ib_destroy_cq(struct ib_cq *ib_cq, struct ib_udata *udata) { struct hns_roce_dev *hr_dev = to_hr_dev(ib_cq->device); struct hns_roce_cq *hr_cq = to_hr_cq(ib_cq); int ret = 0; if (hr_dev->hw->destroy_cq) { ret = hr_dev->hw->destroy_cq(ib_cq, udata); } else { hns_roce_free_cq(hr_dev, hr_cq); hns_roce_mtt_cleanup(hr_dev, &hr_cq->hr_buf.hr_mtt); if (udata) { ib_umem_release(hr_cq->umem); if (hr_cq->db_en == 1) hns_roce_db_unmap_user( rdma_udata_to_drv_context( udata, struct hns_roce_ucontext, ibucontext), &hr_cq->db); } else { /* Free the buff of stored cq */ hns_roce_ib_free_cq_buf(hr_dev, &hr_cq->hr_buf, ib_cq->cqe); if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB) hns_roce_free_db(hr_dev, &hr_cq->db); } kfree(hr_cq); } return ret; } EXPORT_SYMBOL_GPL(hns_roce_ib_destroy_cq); void hns_roce_cq_completion(struct hns_roce_dev *hr_dev, u32 cqn) { struct device *dev = hr_dev->dev; struct hns_roce_cq *cq; cq = xa_load(&hr_dev->cq_table.array, cqn & (hr_dev->caps.num_cqs - 1)); if (!cq) { dev_warn(dev, "Completion event for bogus CQ 0x%08x\n", cqn); return; } ++cq->arm_sn; cq->comp(cq); } EXPORT_SYMBOL_GPL(hns_roce_cq_completion); void hns_roce_cq_event(struct hns_roce_dev *hr_dev, u32 cqn, int event_type) { struct hns_roce_cq_table *cq_table = &hr_dev->cq_table; struct device *dev = hr_dev->dev; struct hns_roce_cq *cq; cq = xa_load(&cq_table->array, cqn & (hr_dev->caps.num_cqs - 1)); if (cq) atomic_inc(&cq->refcount); if (!cq) { dev_warn(dev, "Async event for bogus CQ %08x\n", cqn); return; } cq->event(cq, (enum hns_roce_event)event_type); if (atomic_dec_and_test(&cq->refcount)) complete(&cq->free); } EXPORT_SYMBOL_GPL(hns_roce_cq_event); int hns_roce_init_cq_table(struct hns_roce_dev *hr_dev) { struct hns_roce_cq_table *cq_table = &hr_dev->cq_table; xa_init(&cq_table->array); return hns_roce_bitmap_init(&cq_table->bitmap, hr_dev->caps.num_cqs, hr_dev->caps.num_cqs - 1, hr_dev->caps.reserved_cqs, 0); } void hns_roce_cleanup_cq_table(struct hns_roce_dev *hr_dev) { hns_roce_bitmap_cleanup(&hr_dev->cq_table.bitmap); }
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