diff options
Diffstat (limited to 'hw/rdma')
| -rw-r--r-- | hw/rdma/Kconfig | 3 | ||||
| -rw-r--r-- | hw/rdma/meson.build | 12 | ||||
| -rw-r--r-- | hw/rdma/rdma.c | 30 | ||||
| -rw-r--r-- | hw/rdma/rdma_backend.c | 1401 | ||||
| -rw-r--r-- | hw/rdma/rdma_backend.h | 129 | ||||
| -rw-r--r-- | hw/rdma/rdma_backend_defs.h | 76 | ||||
| -rw-r--r-- | hw/rdma/rdma_rm.c | 812 | ||||
| -rw-r--r-- | hw/rdma/rdma_rm.h | 97 | ||||
| -rw-r--r-- | hw/rdma/rdma_rm_defs.h | 146 | ||||
| -rw-r--r-- | hw/rdma/rdma_utils.c | 126 | ||||
| -rw-r--r-- | hw/rdma/rdma_utils.h | 63 | ||||
| -rw-r--r-- | hw/rdma/trace-events | 31 | ||||
| -rw-r--r-- | hw/rdma/trace.h | 1 | ||||
| -rw-r--r-- | hw/rdma/vmw/pvrdma.h | 144 | ||||
| -rw-r--r-- | hw/rdma/vmw/pvrdma_cmd.c | 815 | ||||
| -rw-r--r-- | hw/rdma/vmw/pvrdma_dev_ring.c | 141 | ||||
| -rw-r--r-- | hw/rdma/vmw/pvrdma_dev_ring.h | 46 | ||||
| -rw-r--r-- | hw/rdma/vmw/pvrdma_main.c | 735 | ||||
| -rw-r--r-- | hw/rdma/vmw/pvrdma_qp_ops.c | 298 | ||||
| -rw-r--r-- | hw/rdma/vmw/pvrdma_qp_ops.h | 28 | ||||
| -rw-r--r-- | hw/rdma/vmw/trace-events | 17 | ||||
| -rw-r--r-- | hw/rdma/vmw/trace.h | 1 |
22 files changed, 0 insertions, 5152 deletions
diff --git a/hw/rdma/Kconfig b/hw/rdma/Kconfig deleted file mode 100644 index 840320bdc0..0000000000 --- a/hw/rdma/Kconfig +++ /dev/null @@ -1,3 +0,0 @@ -config VMW_PVRDMA - default y if PCI_DEVICES - depends on PVRDMA && MSI_NONBROKEN && VMXNET3_PCI diff --git a/hw/rdma/meson.build b/hw/rdma/meson.build deleted file mode 100644 index 363c9b8c83..0000000000 --- a/hw/rdma/meson.build +++ /dev/null @@ -1,12 +0,0 @@ -system_ss.add(when: 'CONFIG_VMW_PVRDMA', if_true: files( - 'rdma.c', - 'rdma_backend.c', - 'rdma_utils.c', - 'vmw/pvrdma_qp_ops.c', -)) -specific_ss.add(when: 'CONFIG_VMW_PVRDMA', if_true: files( - 'rdma_rm.c', - 'vmw/pvrdma_cmd.c', - 'vmw/pvrdma_dev_ring.c', - 'vmw/pvrdma_main.c', -)) diff --git a/hw/rdma/rdma.c b/hw/rdma/rdma.c deleted file mode 100644 index 7bec0d0d2c..0000000000 --- a/hw/rdma/rdma.c +++ /dev/null @@ -1,30 +0,0 @@ -/* - * RDMA device interface - * - * Copyright (C) 2018 Oracle - * Copyright (C) 2018 Red Hat Inc - * - * Authors: - * Yuval Shaia <yuval.shaia@oracle.com> - * - * This work is licensed under the terms of the GNU GPL, version 2 or later. - * See the COPYING file in the top-level directory. - * - */ - -#include "qemu/osdep.h" -#include "hw/rdma/rdma.h" -#include "qemu/module.h" - -static const TypeInfo rdma_hmp_info = { - .name = INTERFACE_RDMA_PROVIDER, - .parent = TYPE_INTERFACE, - .class_size = sizeof(RdmaProviderClass), -}; - -static void rdma_register_types(void) -{ - type_register_static(&rdma_hmp_info); -} - -type_init(rdma_register_types) diff --git a/hw/rdma/rdma_backend.c b/hw/rdma/rdma_backend.c deleted file mode 100644 index 6dcdfbbbe2..0000000000 --- a/hw/rdma/rdma_backend.c +++ /dev/null @@ -1,1401 +0,0 @@ -/* - * QEMU paravirtual RDMA - Generic RDMA backend - * - * Copyright (C) 2018 Oracle - * Copyright (C) 2018 Red Hat Inc - * - * Authors: - * Yuval Shaia <yuval.shaia@oracle.com> - * Marcel Apfelbaum <marcel@redhat.com> - * - * This work is licensed under the terms of the GNU GPL, version 2 or later. - * See the COPYING file in the top-level directory. - * - */ - -#include "qemu/osdep.h" -#include "qapi/qapi-events-rdma.h" - -#include <infiniband/verbs.h> - -#include "contrib/rdmacm-mux/rdmacm-mux.h" -#include "trace.h" -#include "rdma_utils.h" -#include "rdma_rm.h" -#include "rdma_backend.h" - -#define THR_NAME_LEN 16 -#define THR_POLL_TO 5000 - -#define MAD_HDR_SIZE sizeof(struct ibv_grh) - -typedef struct BackendCtx { - void *up_ctx; - struct ibv_sge sge; /* Used to save MAD recv buffer */ - RdmaBackendQP *backend_qp; /* To maintain recv buffers */ - RdmaBackendSRQ *backend_srq; -} BackendCtx; - -struct backend_umad { - struct ib_user_mad hdr; - char mad[RDMA_MAX_PRIVATE_DATA]; -}; - -static void (*comp_handler)(void *ctx, struct ibv_wc *wc); - -static void dummy_comp_handler(void *ctx, struct ibv_wc *wc) -{ - rdma_error_report("No completion handler is registered"); -} - -static inline void complete_work(enum ibv_wc_status status, uint32_t vendor_err, - void *ctx) -{ - struct ibv_wc wc = {}; - - wc.status = status; - wc.vendor_err = vendor_err; - - comp_handler(ctx, &wc); -} - -static void free_cqe_ctx(gpointer data, gpointer user_data) -{ - BackendCtx *bctx; - RdmaDeviceResources *rdma_dev_res = user_data; - unsigned long cqe_ctx_id = GPOINTER_TO_INT(data); - - bctx = rdma_rm_get_cqe_ctx(rdma_dev_res, cqe_ctx_id); - if (bctx) { - rdma_rm_dealloc_cqe_ctx(rdma_dev_res, cqe_ctx_id); - qatomic_dec(&rdma_dev_res->stats.missing_cqe); - } - g_free(bctx); -} - -static void clean_recv_mads(RdmaBackendDev *backend_dev) -{ - unsigned long cqe_ctx_id; - - do { - cqe_ctx_id = rdma_protected_gqueue_pop_int64(&backend_dev-> - recv_mads_list); - if (cqe_ctx_id != -ENOENT) { - qatomic_inc(&backend_dev->rdma_dev_res->stats.missing_cqe); - free_cqe_ctx(GINT_TO_POINTER(cqe_ctx_id), - backend_dev->rdma_dev_res); - } - } while (cqe_ctx_id != -ENOENT); -} - -static int rdma_poll_cq(RdmaDeviceResources *rdma_dev_res, struct ibv_cq *ibcq) -{ - int i, ne, total_ne = 0; - BackendCtx *bctx; - struct ibv_wc wc[2]; - RdmaProtectedGSList *cqe_ctx_list; - - WITH_QEMU_LOCK_GUARD(&rdma_dev_res->lock) { - do { - ne = ibv_poll_cq(ibcq, ARRAY_SIZE(wc), wc); - - trace_rdma_poll_cq(ne, ibcq); - - for (i = 0; i < ne; i++) { - bctx = rdma_rm_get_cqe_ctx(rdma_dev_res, wc[i].wr_id); - if (unlikely(!bctx)) { - rdma_error_report("No matching ctx for req %"PRId64, - wc[i].wr_id); - continue; - } - - comp_handler(bctx->up_ctx, &wc[i]); - - if (bctx->backend_qp) { - cqe_ctx_list = &bctx->backend_qp->cqe_ctx_list; - } else { - cqe_ctx_list = &bctx->backend_srq->cqe_ctx_list; - } - - rdma_protected_gslist_remove_int32(cqe_ctx_list, wc[i].wr_id); - rdma_rm_dealloc_cqe_ctx(rdma_dev_res, wc[i].wr_id); - g_free(bctx); - } - total_ne += ne; - } while (ne > 0); - qatomic_sub(&rdma_dev_res->stats.missing_cqe, total_ne); - } - - if (ne < 0) { - rdma_error_report("ibv_poll_cq fail, rc=%d, errno=%d", ne, errno); - } - - rdma_dev_res->stats.completions += total_ne; - - return total_ne; -} - -static void *comp_handler_thread(void *arg) -{ - RdmaBackendDev *backend_dev = (RdmaBackendDev *)arg; - int rc; - struct ibv_cq *ev_cq; - void *ev_ctx; - int flags; - GPollFD pfds[1]; - - /* Change to non-blocking mode */ - flags = fcntl(backend_dev->channel->fd, F_GETFL); - rc = fcntl(backend_dev->channel->fd, F_SETFL, flags | O_NONBLOCK); - if (rc < 0) { - rdma_error_report("Failed to change backend channel FD to non-blocking"); - return NULL; - } - - pfds[0].fd = backend_dev->channel->fd; - pfds[0].events = G_IO_IN | G_IO_HUP | G_IO_ERR; - - backend_dev->comp_thread.is_running = true; - - while (backend_dev->comp_thread.run) { - do { - rc = qemu_poll_ns(pfds, 1, THR_POLL_TO * (int64_t)SCALE_MS); - if (!rc) { - backend_dev->rdma_dev_res->stats.poll_cq_ppoll_to++; - } - } while (!rc && backend_dev->comp_thread.run); - - if (backend_dev->comp_thread.run) { - rc = ibv_get_cq_event(backend_dev->channel, &ev_cq, &ev_ctx); - if (unlikely(rc)) { - rdma_error_report("ibv_get_cq_event fail, rc=%d, errno=%d", rc, - errno); - continue; - } - - rc = ibv_req_notify_cq(ev_cq, 0); - if (unlikely(rc)) { - rdma_error_report("ibv_req_notify_cq fail, rc=%d, errno=%d", rc, - errno); - } - - backend_dev->rdma_dev_res->stats.poll_cq_from_bk++; - rdma_poll_cq(backend_dev->rdma_dev_res, ev_cq); - - ibv_ack_cq_events(ev_cq, 1); - } - } - - backend_dev->comp_thread.is_running = false; - - qemu_thread_exit(0); - - return NULL; -} - -static inline void disable_rdmacm_mux_async(RdmaBackendDev *backend_dev) -{ - qatomic_set(&backend_dev->rdmacm_mux.can_receive, 0); -} - -static inline void enable_rdmacm_mux_async(RdmaBackendDev *backend_dev) -{ - qatomic_set(&backend_dev->rdmacm_mux.can_receive, sizeof(RdmaCmMuxMsg)); -} - -static inline int rdmacm_mux_can_process_async(RdmaBackendDev *backend_dev) -{ - return qatomic_read(&backend_dev->rdmacm_mux.can_receive); -} - -static int rdmacm_mux_check_op_status(CharBackend *mad_chr_be) -{ - RdmaCmMuxMsg msg = {}; - int ret; - - ret = qemu_chr_fe_read_all(mad_chr_be, (uint8_t *)&msg, sizeof(msg)); - if (ret != sizeof(msg)) { - rdma_error_report("Got invalid message from mux: size %d, expecting %d", - ret, (int)sizeof(msg)); - return -EIO; - } - - trace_rdmacm_mux_check_op_status(msg.hdr.msg_type, msg.hdr.op_code, - msg.hdr.err_code); - - if (msg.hdr.msg_type != RDMACM_MUX_MSG_TYPE_RESP) { - rdma_error_report("Got invalid message type %d", msg.hdr.msg_type); - return -EIO; - } - - if (msg.hdr.err_code != RDMACM_MUX_ERR_CODE_OK) { - rdma_error_report("Operation failed in mux, error code %d", - msg.hdr.err_code); - return -EIO; - } - - return 0; -} - -static int rdmacm_mux_send(RdmaBackendDev *backend_dev, RdmaCmMuxMsg *msg) -{ - int rc = 0; - - msg->hdr.msg_type = RDMACM_MUX_MSG_TYPE_REQ; - trace_rdmacm_mux("send", msg->hdr.msg_type, msg->hdr.op_code); - disable_rdmacm_mux_async(backend_dev); - rc = qemu_chr_fe_write(backend_dev->rdmacm_mux.chr_be, - (const uint8_t *)msg, sizeof(*msg)); - if (rc != sizeof(*msg)) { - enable_rdmacm_mux_async(backend_dev); - rdma_error_report("Failed to send request to rdmacm_mux (rc=%d)", rc); - return -EIO; - } - - rc = rdmacm_mux_check_op_status(backend_dev->rdmacm_mux.chr_be); - if (rc) { - rdma_error_report("Failed to execute rdmacm_mux request %d (rc=%d)", - msg->hdr.op_code, rc); - } - - enable_rdmacm_mux_async(backend_dev); - - return 0; -} - -static void stop_backend_thread(RdmaBackendThread *thread) -{ - thread->run = false; - while (thread->is_running) { - sleep(THR_POLL_TO / SCALE_US / 2); - } -} - -static void start_comp_thread(RdmaBackendDev *backend_dev) -{ - char thread_name[THR_NAME_LEN] = {}; - - stop_backend_thread(&backend_dev->comp_thread); - - snprintf(thread_name, sizeof(thread_name), "rdma_comp_%s", - ibv_get_device_name(backend_dev->ib_dev)); - backend_dev->comp_thread.run = true; - qemu_thread_create(&backend_dev->comp_thread.thread, thread_name, - comp_handler_thread, backend_dev, QEMU_THREAD_DETACHED); -} - -void rdma_backend_register_comp_handler(void (*handler)(void *ctx, - struct ibv_wc *wc)) -{ - comp_handler = handler; -} - -void rdma_backend_unregister_comp_handler(void) -{ - rdma_backend_register_comp_handler(dummy_comp_handler); -} - -int rdma_backend_query_port(RdmaBackendDev *backend_dev, - struct ibv_port_attr *port_attr) -{ - int rc; - - rc = ibv_query_port(backend_dev->context, backend_dev->port_num, port_attr); - if (rc) { - rdma_error_report("ibv_query_port fail, rc=%d, errno=%d", rc, errno); - return -EIO; - } - - return 0; -} - -void rdma_backend_poll_cq(RdmaDeviceResources *rdma_dev_res, RdmaBackendCQ *cq) -{ - int polled; - - rdma_dev_res->stats.poll_cq_from_guest++; - polled = rdma_poll_cq(rdma_dev_res, cq->ibcq); - if (!polled) { - rdma_dev_res->stats.poll_cq_from_guest_empty++; - } -} - -static GHashTable *ah_hash; - -static struct ibv_ah *create_ah(RdmaBackendDev *backend_dev, struct ibv_pd *pd, - uint8_t sgid_idx, union ibv_gid *dgid) -{ - GBytes *ah_key = g_bytes_new(dgid, sizeof(*dgid)); - struct ibv_ah *ah = g_hash_table_lookup(ah_hash, ah_key); - - if (ah) { - trace_rdma_create_ah_cache_hit(be64_to_cpu(dgid->global.subnet_prefix), - be64_to_cpu(dgid->global.interface_id)); - g_bytes_unref(ah_key); - } else { - struct ibv_ah_attr ah_attr = { - .is_global = 1, - .port_num = backend_dev->port_num, - .grh.hop_limit = 1, - }; - - ah_attr.grh.dgid = *dgid; - ah_attr.grh.sgid_index = sgid_idx; - - ah = ibv_create_ah(pd, &ah_attr); - if (ah) { - g_hash_table_insert(ah_hash, ah_key, ah); - } else { - g_bytes_unref(ah_key); - rdma_error_report("Failed to create AH for gid <0x%" PRIx64", 0x%"PRIx64">", - be64_to_cpu(dgid->global.subnet_prefix), - be64_to_cpu(dgid->global.interface_id)); - } - - trace_rdma_create_ah_cache_miss(be64_to_cpu(dgid->global.subnet_prefix), - be64_to_cpu(dgid->global.interface_id)); - } - - return ah; -} - -static void destroy_ah_hash_key(gpointer data) -{ - g_bytes_unref(data); -} - -static void destroy_ah_hast_data(gpointer data) -{ - struct ibv_ah *ah = data; - - ibv_destroy_ah(ah); -} - -static void ah_cache_init(void) -{ - ah_hash = g_hash_table_new_full(g_bytes_hash, g_bytes_equal, - destroy_ah_hash_key, destroy_ah_hast_data); -} - -#ifdef LEGACY_RDMA_REG_MR -static int build_host_sge_array(RdmaDeviceResources *rdma_dev_res, - struct ibv_sge *sge, uint8_t num_sge, - uint64_t *total_length) -{ - RdmaRmMR *mr; - int idx; - - for (idx = 0; idx < num_sge; idx++) { - mr = rdma_rm_get_mr(rdma_dev_res, sge[idx].lkey); - if (unlikely(!mr)) { - rdma_error_report("Invalid lkey 0x%x", sge[idx].lkey); - return VENDOR_ERR_INVLKEY | sge[idx].lkey; - } - - sge[idx].addr = (uintptr_t)mr->virt + sge[idx].addr - mr->start; - sge[idx].lkey = rdma_backend_mr_lkey(&mr->backend_mr); - - *total_length += sge[idx].length; - } - - return 0; -} -#else -static inline int build_host_sge_array(RdmaDeviceResources *rdma_dev_res, - struct ibv_sge *sge, uint8_t num_sge, - uint64_t *total_length) -{ - int idx; - - for (idx = 0; idx < num_sge; idx++) { - *total_length += sge[idx].length; - } - return 0; -} -#endif - -static void trace_mad_message(const char *title, char *buf, int len) -{ - int i; - char *b = g_malloc0(len * 3 + 1); - char b1[4]; - - for (i = 0; i < len; i++) { - sprintf(b1, "%.2X ", buf[i] & 0x000000FF); - strcat(b, b1); - } - - trace_rdma_mad_message(title, len, b); - - g_free(b); -} - -static int mad_send(RdmaBackendDev *backend_dev, uint8_t sgid_idx, - union ibv_gid *sgid, struct ibv_sge *sge, uint32_t num_sge) -{ - RdmaCmMuxMsg msg = {}; - char *hdr, *data; - int ret; - - if (num_sge != 2) { - return -EINVAL; - } - - msg.hdr.op_code = RDMACM_MUX_OP_CODE_MAD; - memcpy(msg.hdr.sgid.raw, sgid->raw, sizeof(msg.hdr.sgid)); - - msg.umad_len = sge[0].length + sge[1].length; - - if (msg.umad_len > sizeof(msg.umad.mad)) { - return -ENOMEM; - } - - msg.umad.hdr.addr.qpn = htobe32(1); - msg.umad.hdr.addr.grh_present = 1; - msg.umad.hdr.addr.gid_index = sgid_idx; - memcpy(msg.umad.hdr.addr.gid, sgid->raw, sizeof(msg.umad.hdr.addr.gid)); - msg.umad.hdr.addr.hop_limit = 0xFF; - - hdr = rdma_pci_dma_map(backend_dev->dev, sge[0].addr, sge[0].length); - if (!hdr) { - return -ENOMEM; - } - data = rdma_pci_dma_map(backend_dev->dev, sge[1].addr, sge[1].length); - if (!data) { - rdma_pci_dma_unmap(backend_dev->dev, hdr, sge[0].length); - return -ENOMEM; - } - - memcpy(&msg.umad.mad[0], hdr, sge[0].length); - memcpy(&msg.umad.mad[sge[0].length], data, sge[1].length); - - rdma_pci_dma_unmap(backend_dev->dev, data, sge[1].length); - rdma_pci_dma_unmap(backend_dev->dev, hdr, sge[0].length); - - trace_mad_message("send", msg.umad.mad, msg.umad_len); - - ret = rdmacm_mux_send(backend_dev, &msg); - if (ret) { - rdma_error_report("Failed to send MAD to rdma_umadmux (%d)", ret); - return -EIO; - } - - return 0; -} - -void rdma_backend_post_send(RdmaBackendDev *backend_dev, - RdmaBackendQP *qp, uint8_t qp_type, - struct ibv_sge *sge, uint32_t num_sge, - uint8_t sgid_idx, union ibv_gid *sgid, - union ibv_gid *dgid, uint32_t dqpn, uint32_t dqkey, - void *ctx) -{ - BackendCtx *bctx; - uint32_t bctx_id; - int rc; - struct ibv_send_wr wr = {}, *bad_wr; - - if (!qp->ibqp) { /* This field is not initialized for QP0 and QP1 */ - if (qp_type == IBV_QPT_SMI) { - rdma_error_report("Got QP0 request"); - complete_work(IBV_WC_GENERAL_ERR, VENDOR_ERR_QP0, ctx); - } else if (qp_type == IBV_QPT_GSI) { - rc = mad_send(backend_dev, sgid_idx, sgid, sge, num_sge); - if (rc) { - complete_work(IBV_WC_GENERAL_ERR, VENDOR_ERR_MAD_SEND, ctx); - backend_dev->rdma_dev_res->stats.mad_tx_err++; - } else { - complete_work(IBV_WC_SUCCESS, 0, ctx); - backend_dev->rdma_dev_res->stats.mad_tx++; - } - } - return; - } - - bctx = g_malloc0(sizeof(*bctx)); - bctx->up_ctx = ctx; - bctx->backend_qp = qp; - - rc = rdma_rm_alloc_cqe_ctx(backend_dev->rdma_dev_res, &bctx_id, bctx); - if (unlikely(rc)) { - complete_work(IBV_WC_GENERAL_ERR, VENDOR_ERR_NOMEM, ctx); - goto err_free_bctx; - } - - rdma_protected_gslist_append_int32(&qp->cqe_ctx_list, bctx_id); - - rc = build_host_sge_array(backend_dev->rdma_dev_res, sge, num_sge, - &backend_dev->rdma_dev_res->stats.tx_len); - if (rc) { - complete_work(IBV_WC_GENERAL_ERR, rc, ctx); - goto err_dealloc_cqe_ctx; - } - - if (qp_type == IBV_QPT_UD) { - wr.wr.ud.ah = create_ah(backend_dev, qp->ibpd, sgid_idx, dgid); - if (!wr.wr.ud.ah) { - complete_work(IBV_WC_GENERAL_ERR, VENDOR_ERR_FAIL_BACKEND, ctx); - goto err_dealloc_cqe_ctx; - } - wr.wr.ud.remote_qpn = dqpn; - wr.wr.ud.remote_qkey = dqkey; - } - - wr.num_sge = num_sge; - wr.opcode = IBV_WR_SEND; - wr.send_flags = IBV_SEND_SIGNALED; - wr.sg_list = sge; - wr.wr_id = bctx_id; - - rc = ibv_post_send(qp->ibqp, &wr, &bad_wr); - if (rc) { - rdma_error_report("ibv_post_send fail, qpn=0x%x, rc=%d, errno=%d", - qp->ibqp->qp_num, rc, errno); - complete_work(IBV_WC_GENERAL_ERR, VENDOR_ERR_FAIL_BACKEND, ctx); - goto err_dealloc_cqe_ctx; - } - - qatomic_inc(&backend_dev->rdma_dev_res->stats.missing_cqe); - backend_dev->rdma_dev_res->stats.tx++; - - return; - -err_dealloc_cqe_ctx: - backend_dev->rdma_dev_res->stats.tx_err++; - rdma_rm_dealloc_cqe_ctx(backend_dev->rdma_dev_res, bctx_id); - -err_free_bctx: - g_free(bctx); -} - -static unsigned int save_mad_recv_buffer(RdmaBackendDev *backend_dev, - struct ibv_sge *sge, uint32_t num_sge, - void *ctx) -{ - BackendCtx *bctx; - int rc; - uint32_t bctx_id; - - if (num_sge != 1) { - rdma_error_report("Invalid num_sge (%d), expecting 1", num_sge); - return VENDOR_ERR_INV_NUM_SGE; - } - - if (sge[0].length < RDMA_MAX_PRIVATE_DATA + sizeof(struct ibv_grh)) { - rdma_error_report("Too small buffer for MAD"); - return VENDOR_ERR_INV_MAD_BUFF; - } - - bctx = g_malloc0(sizeof(*bctx)); - - rc = rdma_rm_alloc_cqe_ctx(backend_dev->rdma_dev_res, &bctx_id, bctx); - if (unlikely(rc)) { - g_free(bctx); - return VENDOR_ERR_NOMEM; - } - - bctx->up_ctx = ctx; - bctx->sge = *sge; - - rdma_protected_gqueue_append_int64(&backend_dev->recv_mads_list, bctx_id); - - return 0; -} - -void rdma_backend_post_recv(RdmaBackendDev *backend_dev, - RdmaBackendQP *qp, uint8_t qp_type, - struct ibv_sge *sge, uint32_t num_sge, void *ctx) -{ - BackendCtx *bctx; - uint32_t bctx_id; - int rc; - struct ibv_recv_wr wr = {}, *bad_wr; - - if (!qp->ibqp) { /* This field does not get initialized for QP0 and QP1 */ - if (qp_type == IBV_QPT_SMI) { - rdma_error_report("Got QP0 request"); - complete_work(IBV_WC_GENERAL_ERR, VENDOR_ERR_QP0, ctx); - } - if (qp_type == IBV_QPT_GSI) { - rc = save_mad_recv_buffer(backend_dev, sge, num_sge, ctx); - if (rc) { - complete_work(IBV_WC_GENERAL_ERR, rc, ctx); - backend_dev->rdma_dev_res->stats.mad_rx_bufs_err++; - } else { - backend_dev->rdma_dev_res->stats.mad_rx_bufs++; - } - } - return; - } - - bctx = g_malloc0(sizeof(*bctx)); - bctx->up_ctx = ctx; - bctx->backend_qp = qp; - - rc = rdma_rm_alloc_cqe_ctx(backend_dev->rdma_dev_res, &bctx_id, bctx); - if (unlikely(rc)) { - complete_work(IBV_WC_GENERAL_ERR, VENDOR_ERR_NOMEM, ctx); - goto err_free_bctx; - } - - rdma_protected_gslist_append_int32(&qp->cqe_ctx_list, bctx_id); - - rc = build_host_sge_array(backend_dev->rdma_dev_res, sge, num_sge, - &backend_dev->rdma_dev_res->stats.rx_bufs_len); - if (rc) { - complete_work(IBV_WC_GENERAL_ERR, rc, ctx); - goto err_dealloc_cqe_ctx; - } - - wr.num_sge = num_sge; - wr.sg_list = sge; - wr.wr_id = bctx_id; - rc = ibv_post_recv(qp->ibqp, &wr, &bad_wr); - if (rc) { - rdma_error_report("ibv_post_recv fail, qpn=0x%x, rc=%d, errno=%d", - qp->ibqp->qp_num, rc, errno); - complete_work(IBV_WC_GENERAL_ERR, VENDOR_ERR_FAIL_BACKEND, ctx); - goto err_dealloc_cqe_ctx; - } - - qatomic_inc(&backend_dev->rdma_dev_res->stats.missing_cqe); - backend_dev->rdma_dev_res->stats.rx_bufs++; - - return; - -err_dealloc_cqe_ctx: - backend_dev->rdma_dev_res->stats.rx_bufs_err++; - rdma_rm_dealloc_cqe_ctx(backend_dev->rdma_dev_res, bctx_id); - -err_free_bctx: - g_free(bctx); -} - -void rdma_backend_post_srq_recv(RdmaBackendDev *backend_dev, - RdmaBackendSRQ *srq, struct ibv_sge *sge, - uint32_t num_sge, void *ctx) -{ - BackendCtx *bctx; - uint32_t bctx_id; - int rc; - struct ibv_recv_wr wr = {}, *bad_wr; - - bctx = g_malloc0(sizeof(*bctx)); - bctx->up_ctx = ctx; - bctx->backend_srq = srq; - - rc = rdma_rm_alloc_cqe_ctx(backend_dev->rdma_dev_res, &bctx_id, bctx); - if (unlikely(rc)) { - complete_work(IBV_WC_GENERAL_ERR, VENDOR_ERR_NOMEM, ctx); - goto err_free_bctx; - } - - rdma_protected_gslist_append_int32(&srq->cqe_ctx_list, bctx_id); - - rc = build_host_sge_array(backend_dev->rdma_dev_res, sge, num_sge, - &backend_dev->rdma_dev_res->stats.rx_bufs_len); - if (rc) { - complete_work(IBV_WC_GENERAL_ERR, rc, ctx); - goto err_dealloc_cqe_ctx; - } - - wr.num_sge = num_sge; - wr.sg_list = sge; - wr.wr_id = bctx_id; - rc = ibv_post_srq_recv(srq->ibsrq, &wr, &bad_wr); - if (rc) { - rdma_error_report("ibv_post_srq_recv fail, srqn=0x%x, rc=%d, errno=%d", - srq->ibsrq->handle, rc, errno); - complete_work(IBV_WC_GENERAL_ERR, VENDOR_ERR_FAIL_BACKEND, ctx); - goto err_dealloc_cqe_ctx; - } - - qatomic_inc(&backend_dev->rdma_dev_res->stats.missing_cqe); - backend_dev->rdma_dev_res->stats.rx_bufs++; - backend_dev->rdma_dev_res->stats.rx_srq++; - - return; - -err_dealloc_cqe_ctx: - backend_dev->rdma_dev_res->stats.rx_bufs_err++; - rdma_rm_dealloc_cqe_ctx(backend_dev->rdma_dev_res, bctx_id); - -err_free_bctx: - g_free(bctx); -} - -int rdma_backend_create_pd(RdmaBackendDev *backend_dev, RdmaBackendPD *pd) -{ - pd->ibpd = ibv_alloc_pd(backend_dev->context); - - if (!pd->ibpd) { - rdma_error_report("ibv_alloc_pd fail, errno=%d", errno); - return -EIO; - } - - return 0; -} - -void rdma_backend_destroy_pd(RdmaBackendPD *pd) -{ - if (pd->ibpd) { - ibv_dealloc_pd(pd->ibpd); - } -} - -int rdma_backend_create_mr(RdmaBackendMR *mr, RdmaBackendPD *pd, void *addr, - size_t length, uint64_t guest_start, int access) -{ -#ifdef LEGACY_RDMA_REG_MR - mr->ibmr = ibv_reg_mr(pd->ibpd, addr, length, access); -#else - mr->ibmr = ibv_reg_mr_iova(pd->ibpd, addr, length, guest_start, access); -#endif - if (!mr->ibmr) { - rdma_error_report("ibv_reg_mr fail, errno=%d", errno); - return -EIO; - } - - mr->ibpd = pd->ibpd; - - return 0; -} - -void rdma_backend_destroy_mr(RdmaBackendMR *mr) -{ - if (mr->ibmr) { - ibv_dereg_mr(mr->ibmr); - } -} - -int rdma_backend_create_cq(RdmaBackendDev *backend_dev, RdmaBackendCQ *cq, - int cqe) -{ - int rc; - - cq->ibcq = ibv_create_cq(backend_dev->context, cqe + 1, NULL, - backend_dev->channel, 0); - if (!cq->ibcq) { - rdma_error_report("ibv_create_cq fail, errno=%d", errno); - return -EIO; - } - - rc = ibv_req_notify_cq(cq->ibcq, 0); - if (rc) { - rdma_warn_report("ibv_req_notify_cq fail, rc=%d, errno=%d", rc, errno); - } - - cq->backend_dev = backend_dev; - - return 0; -} - -void rdma_backend_destroy_cq(RdmaBackendCQ *cq) -{ - if (cq->ibcq) { - ibv_destroy_cq(cq->ibcq); - } -} - -int rdma_backend_create_qp(RdmaBackendQP *qp, uint8_t qp_type, - RdmaBackendPD *pd, RdmaBackendCQ *scq, - RdmaBackendCQ *rcq, RdmaBackendSRQ *srq, - uint32_t max_send_wr, uint32_t max_recv_wr, - uint32_t max_send_sge, uint32_t max_recv_sge) -{ - struct ibv_qp_init_attr attr = {}; - - qp->ibqp = 0; - - switch (qp_type) { - case IBV_QPT_GSI: - return 0; - - case IBV_QPT_RC: - /* fall through */ - case IBV_QPT_UD: - /* do nothing */ - break; - - default: - rdma_error_report("Unsupported QP type %d", qp_type); - return -EIO; - } - - attr.qp_type = qp_type; - attr.send_cq = scq->ibcq; - attr.recv_cq = rcq->ibcq; - attr.cap.max_send_wr = max_send_wr; - attr.cap.max_recv_wr = max_recv_wr; - attr.cap.max_send_sge = max_send_sge; - attr.cap.max_recv_sge = max_recv_sge; - if (srq) { - attr.srq = srq->ibsrq; - } - - qp->ibqp = ibv_create_qp(pd->ibpd, &attr); - if (!qp->ibqp) { - rdma_error_report("ibv_create_qp fail, errno=%d", errno); - return -EIO; - } - - rdma_protected_gslist_init(&qp->cqe_ctx_list); - - qp->ibpd = pd->ibpd; - - /* TODO: Query QP to get max_inline_data and save it to be used in send */ - - return 0; -} - -int rdma_backend_qp_state_init(RdmaBackendDev *backend_dev, RdmaBackendQP *qp, - uint8_t qp_type, uint32_t qkey) -{ - struct ibv_qp_attr attr = {}; - int rc, attr_mask; - - attr_mask = IBV_QP_STATE | IBV_QP_PKEY_INDEX | IBV_QP_PORT; - attr.qp_state = IBV_QPS_INIT; - attr.pkey_index = 0; - attr.port_num = backend_dev->port_num; - - switch (qp_type) { - case IBV_QPT_RC: - attr_mask |= IBV_QP_ACCESS_FLAGS; - trace_rdma_backend_rc_qp_state_init(qp->ibqp->qp_num); - break; - - case IBV_QPT_UD: - attr.qkey = qkey; - attr_mask |= IBV_QP_QKEY; - trace_rdma_backend_ud_qp_state_init(qp->ibqp->qp_num, qkey); - break; - - default: - rdma_error_report("Unsupported QP type %d", qp_type); - return -EIO; - } - - rc = ibv_modify_qp(qp->ibqp, &attr, attr_mask); - if (rc) { - rdma_error_report("ibv_modify_qp fail, rc=%d, errno=%d", rc, errno); - return -EIO; - } - - return 0; -} - -int rdma_backend_qp_state_rtr(RdmaBackendDev *backend_dev, RdmaBackendQP *qp, - uint8_t qp_type, uint8_t sgid_idx, - union ibv_gid *dgid, uint32_t dqpn, - uint32_t rq_psn, uint32_t qkey, bool use_qkey) -{ - struct ibv_qp_attr attr = {}; - union ibv_gid ibv_gid = { - .global.interface_id = dgid->global.interface_id, - .global.subnet_prefix = dgid->global.subnet_prefix - }; - int rc, attr_mask; - - attr.qp_state = IBV_QPS_RTR; - attr_mask = IBV_QP_STATE; - - qp->sgid_idx = sgid_idx; - - switch (qp_type) { - case IBV_QPT_RC: - attr.path_mtu = IBV_MTU_1024; - attr.dest_qp_num = dqpn; - attr.max_dest_rd_atomic = 1; - attr.min_rnr_timer = 12; - attr.ah_attr.port_num = backend_dev->port_num; - attr.ah_attr.is_global = 1; - attr.ah_attr.grh.hop_limit = 1; - attr.ah_attr.grh.dgid = ibv_gid; - attr.ah_attr.grh.sgid_index = qp->sgid_idx; - attr.rq_psn = rq_psn; - - attr_mask |= IBV_QP_AV | IBV_QP_PATH_MTU | IBV_QP_DEST_QPN | - IBV_QP_RQ_PSN | IBV_QP_MAX_DEST_RD_ATOMIC | - IBV_QP_MIN_RNR_TIMER; - - trace_rdma_backend_rc_qp_state_rtr(qp->ibqp->qp_num, - be64_to_cpu(ibv_gid.global. - subnet_prefix), - be64_to_cpu(ibv_gid.global. - interface_id), - qp->sgid_idx, dqpn, rq_psn); - break; - - case IBV_QPT_UD: - if (use_qkey) { - attr.qkey = qkey; - attr_mask |= IBV_QP_QKEY; - } - trace_rdma_backend_ud_qp_state_rtr(qp->ibqp->qp_num, use_qkey ? qkey : - 0); - break; - } - - rc = ibv_modify_qp(qp->ibqp, &attr, attr_mask); - if (rc) { - rdma_error_report("ibv_modify_qp fail, rc=%d, errno=%d", rc, errno); - return -EIO; - } - - return 0; -} - -int rdma_backend_qp_state_rts(RdmaBackendQP *qp, uint8_t qp_type, - uint32_t sq_psn, uint32_t qkey, bool use_qkey) -{ - struct ibv_qp_attr attr = {}; - int rc, attr_mask; - - attr.qp_state = IBV_QPS_RTS; - attr.sq_psn = sq_psn; - attr_mask = IBV_QP_STATE | IBV_QP_SQ_PSN; - - switch (qp_type) { - case IBV_QPT_RC: - attr.timeout = 14; - attr.retry_cnt = 7; - attr.rnr_retry = 7; - attr.max_rd_atomic = 1; - - attr_mask |= IBV_QP_TIMEOUT | IBV_QP_RETRY_CNT | IBV_QP_RNR_RETRY | - IBV_QP_MAX_QP_RD_ATOMIC; - trace_rdma_backend_rc_qp_state_rts(qp->ibqp->qp_num, sq_psn); - break; - - case IBV_QPT_UD: - if (use_qkey) { - attr.qkey = qkey; - attr_mask |= IBV_QP_QKEY; - } - trace_rdma_backend_ud_qp_state_rts(qp->ibqp->qp_num, sq_psn, - use_qkey ? qkey : 0); - break; - } - - rc = ibv_modify_qp(qp->ibqp, &attr, attr_mask); - if (rc) { - rdma_error_report("ibv_modify_qp fail, rc=%d, errno=%d", rc, errno); - return -EIO; - } - - return 0; -} - -int rdma_backend_query_qp(RdmaBackendQP *qp, struct ibv_qp_attr *attr, - int attr_mask, struct ibv_qp_init_attr *init_attr) -{ - if (!qp->ibqp) { - attr->qp_state = IBV_QPS_RTS; - return 0; - } - - return ibv_query_qp(qp->ibqp, attr, attr_mask, init_attr); -} - -void rdma_backend_destroy_qp(RdmaBackendQP *qp, RdmaDeviceResources *dev_res) -{ - if (qp->ibqp) { - ibv_destroy_qp(qp->ibqp); - } - g_slist_foreach(qp->cqe_ctx_list.list, free_cqe_ctx, dev_res); - rdma_protected_gslist_destroy(&qp->cqe_ctx_list); -} - -int rdma_backend_create_srq(RdmaBackendSRQ *srq, RdmaBackendPD *pd, - uint32_t max_wr, uint32_t max_sge, - uint32_t srq_limit) -{ - struct ibv_srq_init_attr srq_init_attr = {}; - - srq_init_attr.attr.max_wr = max_wr; - srq_init_attr.attr.max_sge = max_sge; - srq_init_attr.attr.srq_limit = srq_limit; - - srq->ibsrq = ibv_create_srq(pd->ibpd, &srq_init_attr); - if (!srq->ibsrq) { - rdma_error_report("ibv_create_srq failed, errno=%d", errno); - return -EIO; - } - - rdma_protected_gslist_init(&srq->cqe_ctx_list); - - return 0; -} - -int rdma_backend_query_srq(RdmaBackendSRQ *srq, struct ibv_srq_attr *srq_attr) -{ - if (!srq->ibsrq) { - return -EINVAL; - } - - return ibv_query_srq(srq->ibsrq, srq_attr); -} - -int rdma_backend_modify_srq(RdmaBackendSRQ *srq, struct ibv_srq_attr *srq_attr, - int srq_attr_mask) -{ - if (!srq->ibsrq) { - return -EINVAL; - } - - return ibv_modify_srq(srq->ibsrq, srq_attr, srq_attr_mask); -} - -void rdma_backend_destroy_srq(RdmaBackendSRQ *srq, RdmaDeviceResources *dev_res) -{ - if (srq->ibsrq) { - ibv_destroy_srq(srq->ibsrq); - } - g_slist_foreach(srq->cqe_ctx_list.list, free_cqe_ctx, dev_res); - rdma_protected_gslist_destroy(&srq->cqe_ctx_list); -} - -#define CHK_ATTR(req, dev, member, fmt) ({ \ - trace_rdma_check_dev_attr(#member, dev.member, req->member); \ - if (req->member > dev.member) { \ - rdma_warn_report("%s = "fmt" is higher than host device capability "fmt, \ - #member, req->member, dev.member); \ - req->member = dev.member; \ - } \ -}) - -static int init_device_caps(RdmaBackendDev *backend_dev, - struct ibv_device_attr *dev_attr) -{ - struct ibv_device_attr bk_dev_attr; - int rc; - - rc = ibv_query_device(backend_dev->context, &bk_dev_attr); - if (rc) { - rdma_error_report("ibv_query_device fail, rc=%d, errno=%d", rc, errno); - return -EIO; - } - - dev_attr->max_sge = MAX_SGE; - dev_attr->max_srq_sge = MAX_SGE; - - CHK_ATTR(dev_attr, bk_dev_attr, max_mr_size, "%" PRId64); - CHK_ATTR(dev_attr, bk_dev_attr, max_qp, "%d"); - CHK_ATTR(dev_attr, bk_dev_attr, max_sge, "%d"); - CHK_ATTR(dev_attr, bk_dev_attr, max_cq, "%d"); - CHK_ATTR(dev_attr, bk_dev_attr, max_mr, "%d"); - CHK_ATTR(dev_attr, bk_dev_attr, max_pd, "%d"); - CHK_ATTR(dev_attr, bk_dev_attr, max_qp_rd_atom, "%d"); - CHK_ATTR(dev_attr, bk_dev_attr, max_qp_init_rd_atom, "%d"); - CHK_ATTR(dev_attr, bk_dev_attr, max_ah, "%d"); - CHK_ATTR(dev_attr, bk_dev_attr, max_srq, "%d"); - - return 0; -} - -static inline void build_mad_hdr(struct ibv_grh *grh, union ibv_gid *sgid, - union ibv_gid *my_gid, int paylen) -{ - grh->paylen = htons(paylen); - grh->sgid = *sgid; - grh->dgid = *my_gid; -} - -static void process_incoming_mad_req(RdmaBackendDev *backend_dev, - RdmaCmMuxMsg *msg) -{ - unsigned long cqe_ctx_id; - BackendCtx *bctx; - char *mad; - - trace_mad_message("recv", msg->umad.mad, msg->umad_len); - - cqe_ctx_id = rdma_protected_gqueue_pop_int64(&backend_dev->recv_mads_list); - if (cqe_ctx_id == -ENOENT) { - rdma_warn_report("No more free MADs buffers, waiting for a while"); - sleep(THR_POLL_TO); - return; - } - - bctx = rdma_rm_get_cqe_ctx(backend_dev->rdma_dev_res, cqe_ctx_id); - if (unlikely(!bctx)) { - rdma_error_report("No matching ctx for req %ld", cqe_ctx_id); - backend_dev->rdma_dev_res->stats.mad_rx_err++; - return; - } - - mad = rdma_pci_dma_map(backend_dev->dev, bctx->sge.addr, - bctx->sge.length); - if (!mad || bctx->sge.length < msg->umad_len + MAD_HDR_SIZE) { - backend_dev->rdma_dev_res->stats.mad_rx_err++; - complete_work(IBV_WC_GENERAL_ERR, VENDOR_ERR_INV_MAD_BUFF, - bctx->up_ctx); - } else { - struct ibv_wc wc = {}; - memset(mad, 0, bctx->sge.length); - build_mad_hdr((struct ibv_grh *)mad, - (union ibv_gid *)&msg->umad.hdr.addr.gid, &msg->hdr.sgid, - msg->umad_len); - memcpy(&mad[MAD_HDR_SIZE], msg->umad.mad, msg->umad_len); - rdma_pci_dma_unmap(backend_dev->dev, mad, bctx->sge.length); - - wc.byte_len = msg->umad_len; - wc.status = IBV_WC_SUCCESS; - wc.wc_flags = IBV_WC_GRH; - backend_dev->rdma_dev_res->stats.mad_rx++; - comp_handler(bctx->up_ctx, &wc); - } - - g_free(bctx); - rdma_rm_dealloc_cqe_ctx(backend_dev->rdma_dev_res, cqe_ctx_id); -} - -static inline int rdmacm_mux_can_receive(void *opaque) -{ - RdmaBackendDev *backend_dev = (RdmaBackendDev *)opaque; - - return rdmacm_mux_can_process_async(backend_dev); -} - -static void rdmacm_mux_read(void *opaque, const uint8_t *buf, int size) -{ - RdmaBackendDev *backend_dev = (RdmaBackendDev *)opaque; - RdmaCmMuxMsg *msg = (RdmaCmMuxMsg *)buf; - - trace_rdmacm_mux("read", msg->hdr.msg_type, msg->hdr.op_code); - - if (msg->hdr.msg_type != RDMACM_MUX_MSG_TYPE_REQ && - msg->hdr.op_code != RDMACM_MUX_OP_CODE_MAD) { - rdma_error_report("Error: Not a MAD request, skipping"); - return; - } - process_incoming_mad_req(backend_dev, msg); -} - -static int mad_init(RdmaBackendDev *backend_dev, CharBackend *mad_chr_be) -{ - int ret; - - backend_dev->rdmacm_mux.chr_be = mad_chr_be; - - ret = qemu_chr_fe_backend_connected(backend_dev->rdmacm_mux.chr_be); - if (!ret) { - rdma_error_report("Missing chardev for MAD multiplexer"); - return -EIO; - } - - rdma_protected_gqueue_init(&backend_dev->recv_mads_list); - - enable_rdmacm_mux_async(backend_dev); - - qemu_chr_fe_set_handlers(backend_dev->rdmacm_mux.chr_be, - rdmacm_mux_can_receive, rdmacm_mux_read, NULL, - NULL, backend_dev, NULL, true); - - return 0; -} - -static void mad_stop(RdmaBackendDev *backend_dev) -{ - clean_recv_mads(backend_dev); -} - -static void mad_fini(RdmaBackendDev *backend_dev) -{ - disable_rdmacm_mux_async(backend_dev); - qemu_chr_fe_disconnect(backend_dev->rdmacm_mux.chr_be); - rdma_protected_gqueue_destroy(&backend_dev->recv_mads_list); -} - -int rdma_backend_get_gid_index(RdmaBackendDev *backend_dev, - union ibv_gid *gid) -{ - union ibv_gid sgid; - int ret; - int i = 0; - - do { - ret = ibv_query_gid(backend_dev->context, backend_dev->port_num, i, - &sgid); - i++; - } while (!ret && (memcmp(&sgid, gid, sizeof(*gid)))); - - trace_rdma_backend_get_gid_index(be64_to_cpu(gid->global.subnet_prefix), - be64_to_cpu(gid->global.interface_id), - i - 1); - - return ret ? ret : i - 1; -} - -int rdma_backend_add_gid(RdmaBackendDev *backend_dev, const char *ifname, - union ibv_gid *gid) -{ - RdmaCmMuxMsg msg = {}; - int ret; - - trace_rdma_backend_gid_change("add", be64_to_cpu(gid->global.subnet_prefix), - be64_to_cpu(gid->global.interface_id)); - - msg.hdr.op_code = RDMACM_MUX_OP_CODE_REG; - memcpy(msg.hdr.sgid.raw, gid->raw, sizeof(msg.hdr.sgid)); - - ret = rdmacm_mux_send(backend_dev, &msg); - if (ret) { - rdma_error_report("Failed to register GID to rdma_umadmux (%d)", ret); - return -EIO; - } - - qapi_event_send_rdma_gid_status_changed(ifname, true, - gid->global.subnet_prefix, - gid->global.interface_id); - - return ret; -} - -int rdma_backend_del_gid(RdmaBackendDev *backend_dev, const char *ifname, - union ibv_gid *gid) -{ - RdmaCmMuxMsg msg = {}; - int ret; - - trace_rdma_backend_gid_change("del", be64_to_cpu(gid->global.subnet_prefix), - be64_to_cpu(gid->global.interface_id)); - - msg.hdr.op_code = RDMACM_MUX_OP_CODE_UNREG; - memcpy(msg.hdr.sgid.raw, gid->raw, sizeof(msg.hdr.sgid)); - - ret = rdmacm_mux_send(backend_dev, &msg); - if (ret) { - rdma_error_report("Failed to unregister GID from rdma_umadmux (%d)", - ret); - return -EIO; - } - - qapi_event_send_rdma_gid_status_changed(ifname, false, - gid->global.subnet_prefix, - gid->global.interface_id); - - return 0; -} - -int rdma_backend_init(RdmaBackendDev *backend_dev, PCIDevice *pdev, - RdmaDeviceResources *rdma_dev_res, - const char *backend_device_name, uint8_t port_num, - struct ibv_device_attr *dev_attr, CharBackend *mad_chr_be) -{ - int i; - int ret = 0; - int num_ibv_devices; - struct ibv_device **dev_list; - - memset(backend_dev, 0, sizeof(*backend_dev)); - - backend_dev->dev = pdev; - backend_dev->port_num = port_num; - backend_dev->rdma_dev_res = rdma_dev_res; - - rdma_backend_register_comp_handler(dummy_comp_handler); - - dev_list = ibv_get_device_list(&num_ibv_devices); - if (!dev_list) { - rdma_error_report("Failed to get IB devices list"); - return -EIO; - } - - if (num_ibv_devices == 0) { - rdma_error_report("No IB devices were found"); - ret = -ENXIO; - goto out_free_dev_list; - } - - if (backend_device_name) { - for (i = 0; dev_list[i]; ++i) { - if (!strcmp(ibv_get_device_name(dev_list[i]), - backend_device_name)) { - break; - } - } - - backend_dev->ib_dev = dev_list[i]; - if (!backend_dev->ib_dev) { - rdma_error_report("Failed to find IB device %s", - backend_device_name); - ret = -EIO; - goto out_free_dev_list; - } - } else { - backend_dev->ib_dev = *dev_list; - } - - rdma_info_report("uverb device %s", backend_dev->ib_dev->dev_name); - - backend_dev->context = ibv_open_device(backend_dev->ib_dev); - if (!backend_dev->context) { - rdma_error_report("Failed to open IB device %s", - ibv_get_device_name(backend_dev->ib_dev)); - ret = -EIO; - goto out; - } - - backend_dev->channel = ibv_create_comp_channel(backend_dev->context); - if (!backend_dev->channel) { - rdma_error_report("Failed to create IB communication channel"); - ret = -EIO; - goto out_close_device; - } - - ret = init_device_caps(backend_dev, dev_attr); - if (ret) { - rdma_error_report("Failed to initialize device capabilities"); - ret = -EIO; - goto out_destroy_comm_channel; - } - - - ret = mad_init(backend_dev, mad_chr_be); - if (ret) { - rdma_error_report("Failed to initialize mad"); - ret = -EIO; - goto out_destroy_comm_channel; - } - - backend_dev->comp_thread.run = false; - backend_dev->comp_thread.is_running = false; - - ah_cache_init(); - - goto out_free_dev_list; - -out_destroy_comm_channel: - ibv_destroy_comp_channel(backend_dev->channel); - -out_close_device: - ibv_close_device(backend_dev->context); - -out_free_dev_list: - ibv_free_device_list(dev_list); - -out: - return ret; -} - - -void rdma_backend_start(RdmaBackendDev *backend_dev) -{ - start_comp_thread(backend_dev); -} - -void rdma_backend_stop(RdmaBackendDev *backend_dev) -{ - mad_stop(backend_dev); - stop_backend_thread(&backend_dev->comp_thread); -} - -void rdma_backend_fini(RdmaBackendDev *backend_dev) -{ - mad_fini(backend_dev); - g_hash_table_destroy(ah_hash); - ibv_destroy_comp_channel(backend_dev->channel); - ibv_close_device(backend_dev->context); -} diff --git a/hw/rdma/rdma_backend.h b/hw/rdma/rdma_backend.h deleted file mode 100644 index 225af481e0..0000000000 --- a/hw/rdma/rdma_backend.h +++ /dev/null @@ -1,129 +0,0 @@ -/* - * RDMA device: Definitions of Backend Device functions - * - * Copyright (C) 2018 Oracle - * Copyright (C) 2018 Red Hat Inc - * - * Authors: - * Yuval Shaia <yuval.shaia@oracle.com> - * Marcel Apfelbaum <marcel@redhat.com> - * - * This work is licensed under the terms of the GNU GPL, version 2 or later. - * See the COPYING file in the top-level directory. - * - */ - -#ifndef RDMA_BACKEND_H -#define RDMA_BACKEND_H - -#include "qapi/error.h" -#include "chardev/char-fe.h" - -#include "rdma_rm_defs.h" -#include "rdma_backend_defs.h" - -/* Vendor Errors */ -#define VENDOR_ERR_FAIL_BACKEND 0x201 -#define VENDOR_ERR_TOO_MANY_SGES 0x202 -#define VENDOR_ERR_NOMEM 0x203 -#define VENDOR_ERR_QP0 0x204 -#define VENDOR_ERR_INV_NUM_SGE 0x205 -#define VENDOR_ERR_MAD_SEND 0x206 -#define VENDOR_ERR_INVLKEY 0x207 -#define VENDOR_ERR_MR_SMALL 0x208 -#define VENDOR_ERR_INV_MAD_BUFF 0x209 -#define VENDOR_ERR_INV_GID_IDX 0x210 - -/* Add definition for QP0 and QP1 as there is no userspace enums for them */ -enum ibv_special_qp_type { - IBV_QPT_SMI = 0, - IBV_QPT_GSI = 1, -}; - -static inline uint32_t rdma_backend_qpn(const RdmaBackendQP *qp) -{ - return qp->ibqp ? qp->ibqp->qp_num : 1; -} - -static inline uint32_t rdma_backend_mr_lkey(const RdmaBackendMR *mr) -{ - return mr->ibmr ? mr->ibmr->lkey : 0; -} - -static inline uint32_t rdma_backend_mr_rkey(const RdmaBackendMR *mr) -{ - return mr->ibmr ? mr->ibmr->rkey : 0; -} - -int rdma_backend_init(RdmaBackendDev *backend_dev, PCIDevice *pdev, - RdmaDeviceResources *rdma_dev_res, - const char *backend_device_name, uint8_t port_num, - struct ibv_device_attr *dev_attr, - CharBackend *mad_chr_be); -void rdma_backend_fini(RdmaBackendDev *backend_dev); -int rdma_backend_add_gid(RdmaBackendDev *backend_dev, const char *ifname, - union ibv_gid *gid); -int rdma_backend_del_gid(RdmaBackendDev *backend_dev, const char *ifname, - union ibv_gid *gid); -int rdma_backend_get_gid_index(RdmaBackendDev *backend_dev, - union ibv_gid *gid); -void rdma_backend_start(RdmaBackendDev *backend_dev); -void rdma_backend_stop(RdmaBackendDev *backend_dev); -void rdma_backend_register_comp_handler(void (*handler)(void *ctx, - struct ibv_wc *wc)); -void rdma_backend_unregister_comp_handler(void); - -int rdma_backend_query_port(RdmaBackendDev *backend_dev, - struct ibv_port_attr *port_attr); -int rdma_backend_create_pd(RdmaBackendDev *backend_dev, RdmaBackendPD *pd); -void rdma_backend_destroy_pd(RdmaBackendPD *pd); - -int rdma_backend_create_mr(RdmaBackendMR *mr, RdmaBackendPD *pd, void *addr, - size_t length, uint64_t guest_start, int access); -void rdma_backend_destroy_mr(RdmaBackendMR *mr); - -int rdma_backend_create_cq(RdmaBackendDev *backend_dev, RdmaBackendCQ *cq, - int cqe); -void rdma_backend_destroy_cq(RdmaBackendCQ *cq); -void rdma_backend_poll_cq(RdmaDeviceResources *rdma_dev_res, RdmaBackendCQ *cq); - -int rdma_backend_create_qp(RdmaBackendQP *qp, uint8_t qp_type, - RdmaBackendPD *pd, RdmaBackendCQ *scq, - RdmaBackendCQ *rcq, RdmaBackendSRQ *srq, - uint32_t max_send_wr, uint32_t max_recv_wr, - uint32_t max_send_sge, uint32_t max_recv_sge); -int rdma_backend_qp_state_init(RdmaBackendDev *backend_dev, RdmaBackendQP *qp, - uint8_t qp_type, uint32_t qkey); -int rdma_backend_qp_state_rtr(RdmaBackendDev *backend_dev, RdmaBackendQP *qp, - uint8_t qp_type, uint8_t sgid_idx, - union ibv_gid *dgid, uint32_t dqpn, - uint32_t rq_psn, uint32_t qkey, bool use_qkey); -int rdma_backend_qp_state_rts(RdmaBackendQP *qp, uint8_t qp_type, - uint32_t sq_psn, uint32_t qkey, bool use_qkey); -int rdma_backend_query_qp(RdmaBackendQP *qp, struct ibv_qp_attr *attr, - int attr_mask, struct ibv_qp_init_attr *init_attr); -void rdma_backend_destroy_qp(RdmaBackendQP *qp, RdmaDeviceResources *dev_res); - -void rdma_backend_post_send(RdmaBackendDev *backend_dev, - RdmaBackendQP *qp, uint8_t qp_type, - struct ibv_sge *sge, uint32_t num_sge, - uint8_t sgid_idx, union ibv_gid *sgid, - union ibv_gid *dgid, uint32_t dqpn, uint32_t dqkey, - void *ctx); -void rdma_backend_post_recv(RdmaBackendDev *backend_dev, - RdmaBackendQP *qp, uint8_t qp_type, - struct ibv_sge *sge, uint32_t num_sge, void *ctx); - -int rdma_backend_create_srq(RdmaBackendSRQ *srq, RdmaBackendPD *pd, - uint32_t max_wr, uint32_t max_sge, - uint32_t srq_limit); -int rdma_backend_query_srq(RdmaBackendSRQ *srq, struct ibv_srq_attr *srq_attr); -int rdma_backend_modify_srq(RdmaBackendSRQ *srq, struct ibv_srq_attr *srq_attr, - int srq_attr_mask); -void rdma_backend_destroy_srq(RdmaBackendSRQ *srq, - RdmaDeviceResources *dev_res); -void rdma_backend_post_srq_recv(RdmaBackendDev *backend_dev, - RdmaBackendSRQ *srq, struct ibv_sge *sge, - uint32_t num_sge, void *ctx); - -#endif diff --git a/hw/rdma/rdma_backend_defs.h b/hw/rdma/rdma_backend_defs.h deleted file mode 100644 index 4e6c0ad695..0000000000 --- a/hw/rdma/rdma_backend_defs.h +++ /dev/null @@ -1,76 +0,0 @@ -/* - * RDMA device: Definitions of Backend Device structures - * - * Copyright (C) 2018 Oracle - * Copyright (C) 2018 Red Hat Inc - * - * Authors: - * Yuval Shaia <yuval.shaia@oracle.com> - * Marcel Apfelbaum <marcel@redhat.com> - * - * This work is licensed under the terms of the GNU GPL, version 2 or later. - * See the COPYING file in the top-level directory. - * - */ - -#ifndef RDMA_BACKEND_DEFS_H -#define RDMA_BACKEND_DEFS_H - -#include "qemu/thread.h" -#include "chardev/char-fe.h" -#include <infiniband/verbs.h> -#include "contrib/rdmacm-mux/rdmacm-mux.h" -#include "rdma_utils.h" - -typedef struct RdmaDeviceResources RdmaDeviceResources; - -typedef struct RdmaBackendThread { - QemuThread thread; - bool run; /* Set by thread manager to let thread know it should exit */ - bool is_running; /* Set by the thread to report its status */ -} RdmaBackendThread; - -typedef struct RdmaCmMux { - CharBackend *chr_be; - int can_receive; -} RdmaCmMux; - -typedef struct RdmaBackendDev { - RdmaBackendThread comp_thread; - PCIDevice *dev; - RdmaDeviceResources *rdma_dev_res; - struct ibv_device *ib_dev; - struct ibv_context *context; - struct ibv_comp_channel *channel; - uint8_t port_num; - RdmaProtectedGQueue recv_mads_list; - RdmaCmMux rdmacm_mux; -} RdmaBackendDev; - -typedef struct RdmaBackendPD { - struct ibv_pd *ibpd; -} RdmaBackendPD; - -typedef struct RdmaBackendMR { - struct ibv_pd *ibpd; - struct ibv_mr *ibmr; -} RdmaBackendMR; - -typedef struct RdmaBackendCQ { - RdmaBackendDev *backend_dev; - struct ibv_cq *ibcq; -} RdmaBackendCQ; - -typedef struct RdmaBackendQP { - struct ibv_pd *ibpd; - struct ibv_qp *ibqp; - uint8_t sgid_idx; - RdmaProtectedGSList cqe_ctx_list; -} RdmaBackendQP; - -typedef struct RdmaBackendSRQ { - struct ibv_srq *ibsrq; - RdmaProtectedGSList cqe_ctx_list; -} RdmaBackendSRQ; - -#endif diff --git a/hw/rdma/rdma_rm.c b/hw/rdma/rdma_rm.c deleted file mode 100644 index 038d564433..0000000000 --- a/hw/rdma/rdma_rm.c +++ /dev/null @@ -1,812 +0,0 @@ -/* - * QEMU paravirtual RDMA - Resource Manager Implementation - * - * Copyright (C) 2018 Oracle - * Copyright (C) 2018 Red Hat Inc - * - * Authors: - * Yuval Shaia <yuval.shaia@oracle.com> - * Marcel Apfelbaum <marcel@redhat.com> - * - * This work is licensed under the terms of the GNU GPL, version 2 or later. - * See the COPYING file in the top-level directory. - * - */ - -#include "qemu/osdep.h" -#include "qapi/error.h" -#include "cpu.h" -#include "monitor/monitor.h" - -#include "trace.h" -#include "rdma_utils.h" -#include "rdma_backend.h" -#include "rdma_rm.h" - -void rdma_format_device_counters(RdmaDeviceResources *dev_res, GString *buf) -{ - g_string_append_printf(buf, "\ttx : %" PRId64 "\n", - dev_res->stats.tx); - g_string_append_printf(buf, "\ttx_len : %" PRId64 "\n", - dev_res->stats.tx_len); - g_string_append_printf(buf, "\ttx_err : %" PRId64 "\n", - dev_res->stats.tx_err); - g_string_append_printf(buf, "\trx_bufs : %" PRId64 "\n", - dev_res->stats.rx_bufs); - g_string_append_printf(buf, "\trx_srq : %" PRId64 "\n", - dev_res->stats.rx_srq); - g_string_append_printf(buf, "\trx_bufs_len : %" PRId64 "\n", - dev_res->stats.rx_bufs_len); - g_string_append_printf(buf, "\trx_bufs_err : %" PRId64 "\n", - dev_res->stats.rx_bufs_err); - g_string_append_printf(buf, "\tcomps : %" PRId64 "\n", - dev_res->stats.completions); - g_string_append_printf(buf, "\tmissing_comps : %" PRId32 "\n", - dev_res->stats.missing_cqe); - g_string_append_printf(buf, "\tpoll_cq (bk) : %" PRId64 "\n", - dev_res->stats.poll_cq_from_bk); - g_string_append_printf(buf, "\tpoll_cq_ppoll_to : %" PRId64 "\n", - dev_res->stats.poll_cq_ppoll_to); - g_string_append_printf(buf, "\tpoll_cq (fe) : %" PRId64 "\n", - dev_res->stats.poll_cq_from_guest); - g_string_append_printf(buf, "\tpoll_cq_empty : %" PRId64 "\n", - dev_res->stats.poll_cq_from_guest_empty); - g_string_append_printf(buf, "\tmad_tx : %" PRId64 "\n", - dev_res->stats.mad_tx); - g_string_append_printf(buf, "\tmad_tx_err : %" PRId64 "\n", - dev_res->stats.mad_tx_err); - g_string_append_printf(buf, "\tmad_rx : %" PRId64 "\n", - dev_res->stats.mad_rx); - g_string_append_printf(buf, "\tmad_rx_err : %" PRId64 "\n", - dev_res->stats.mad_rx_err); - g_string_append_printf(buf, "\tmad_rx_bufs : %" PRId64 "\n", - dev_res->stats.mad_rx_bufs); - g_string_append_printf(buf, "\tmad_rx_bufs_err : %" PRId64 "\n", - dev_res->stats.mad_rx_bufs_err); - g_string_append_printf(buf, "\tPDs : %" PRId32 "\n", - dev_res->pd_tbl.used); - g_string_append_printf(buf, "\tMRs : %" PRId32 "\n", - dev_res->mr_tbl.used); - g_string_append_printf(buf, "\tUCs : %" PRId32 "\n", - dev_res->uc_tbl.used); - g_string_append_printf(buf, "\tQPs : %" PRId32 "\n", - dev_res->qp_tbl.used); - g_string_append_printf(buf, "\tCQs : %" PRId32 "\n", - dev_res->cq_tbl.used); - g_string_append_printf(buf, "\tCEQ_CTXs : %" PRId32 "\n", - dev_res->cqe_ctx_tbl.used); -} - -static inline void res_tbl_init(const char *name, RdmaRmResTbl *tbl, - uint32_t tbl_sz, uint32_t res_sz) -{ - tbl->tbl = g_malloc(tbl_sz * res_sz); - - strncpy(tbl->name, name, MAX_RM_TBL_NAME); - tbl->name[MAX_RM_TBL_NAME - 1] = 0; - - tbl->bitmap = bitmap_new(tbl_sz); - tbl->tbl_sz = tbl_sz; - tbl->res_sz = res_sz; - tbl->used = 0; - qemu_mutex_init(&tbl->lock); -} - -static inline void res_tbl_free(RdmaRmResTbl *tbl) -{ - if (!tbl->bitmap) { - return; - } - qemu_mutex_destroy(&tbl->lock); - g_free(tbl->tbl); - g_free(tbl->bitmap); -} - -static inline void *rdma_res_tbl_get(RdmaRmResTbl *tbl, uint32_t handle) -{ - trace_rdma_res_tbl_get(tbl->name, handle); - - if ((handle < tbl->tbl_sz) && (test_bit(handle, tbl->bitmap))) { - return tbl->tbl + handle * tbl->res_sz; - } else { - rdma_error_report("Table %s, invalid handle %d", tbl->name, handle); - return NULL; - } -} - -static inline void *rdma_res_tbl_alloc(RdmaRmResTbl *tbl, uint32_t *handle) -{ - qemu_mutex_lock(&tbl->lock); - - *handle = find_first_zero_bit(tbl->bitmap, tbl->tbl_sz); - if (*handle > tbl->tbl_sz) { - rdma_error_report("Table %s, failed to allocate, bitmap is full", - tbl->name); - qemu_mutex_unlock(&tbl->lock); - return NULL; - } - - set_bit(*handle, tbl->bitmap); - - tbl->used++; - - qemu_mutex_unlock(&tbl->lock); - - memset(tbl->tbl + *handle * tbl->res_sz, 0, tbl->res_sz); - - trace_rdma_res_tbl_alloc(tbl->name, *handle); - - return tbl->tbl + *handle * tbl->res_sz; -} - -static inline void rdma_res_tbl_dealloc(RdmaRmResTbl *tbl, uint32_t handle) -{ - trace_rdma_res_tbl_dealloc(tbl->name, handle); - - QEMU_LOCK_GUARD(&tbl->lock); - - if (handle < tbl->tbl_sz) { - clear_bit(handle, tbl->bitmap); - tbl->used--; - } - -} - -int rdma_rm_alloc_pd(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev, - uint32_t *pd_handle, uint32_t ctx_handle) -{ - RdmaRmPD *pd; - int ret = -ENOMEM; - - pd = rdma_res_tbl_alloc(&dev_res->pd_tbl, pd_handle); - if (!pd) { - goto out; - } - - ret = rdma_backend_create_pd(backend_dev, &pd->backend_pd); - if (ret) { - ret = -EIO; - goto out_tbl_dealloc; - } - - pd->ctx_handle = ctx_handle; - - return 0; - -out_tbl_dealloc: - rdma_res_tbl_dealloc(&dev_res->pd_tbl, *pd_handle); - -out: - return ret; -} - -RdmaRmPD *rdma_rm_get_pd(RdmaDeviceResources *dev_res, uint32_t pd_handle) -{ - return rdma_res_tbl_get(&dev_res->pd_tbl, pd_handle); -} - -void rdma_rm_dealloc_pd(RdmaDeviceResources *dev_res, uint32_t pd_handle) -{ - RdmaRmPD *pd = rdma_rm_get_pd(dev_res, pd_handle); - - if (pd) { - rdma_backend_destroy_pd(&pd->backend_pd); - rdma_res_tbl_dealloc(&dev_res->pd_tbl, pd_handle); - } -} - -int rdma_rm_alloc_mr(RdmaDeviceResources *dev_res, uint32_t pd_handle, - uint64_t guest_start, uint64_t guest_length, - void *host_virt, int access_flags, uint32_t *mr_handle, - uint32_t *lkey, uint32_t *rkey) -{ - RdmaRmMR *mr; - int ret = 0; - RdmaRmPD *pd; - - pd = rdma_rm_get_pd(dev_res, pd_handle); - if (!pd) { - return -EINVAL; - } - - mr = rdma_res_tbl_alloc(&dev_res->mr_tbl, mr_handle); - if (!mr) { - return -ENOMEM; - } - trace_rdma_rm_alloc_mr(*mr_handle, host_virt, guest_start, guest_length, - access_flags); - - if (host_virt) { - mr->virt = host_virt; - mr->start = guest_start; - mr->length = guest_length; - mr->virt += (mr->start & (TARGET_PAGE_SIZE - 1)); - - ret = rdma_backend_create_mr(&mr->backend_mr, &pd->backend_pd, mr->virt, - mr->length, guest_start, access_flags); - if (ret) { - ret = -EIO; - goto out_dealloc_mr; - } -#ifdef LEGACY_RDMA_REG_MR - /* We keep mr_handle in lkey so send and recv get get mr ptr */ - *lkey = *mr_handle; -#else - *lkey = rdma_backend_mr_lkey(&mr->backend_mr); -#endif - } - - *rkey = -1; - - mr->pd_handle = pd_handle; - - return 0; - -out_dealloc_mr: - rdma_res_tbl_dealloc(&dev_res->mr_tbl, *mr_handle); - - return ret; -} - -RdmaRmMR *rdma_rm_get_mr(RdmaDeviceResources *dev_res, uint32_t mr_handle) -{ - return rdma_res_tbl_get(&dev_res->mr_tbl, mr_handle); -} - -void rdma_rm_dealloc_mr(RdmaDeviceResources *dev_res, uint32_t mr_handle) -{ - RdmaRmMR *mr = rdma_rm_get_mr(dev_res, mr_handle); - - if (mr) { - rdma_backend_destroy_mr(&mr->backend_mr); - trace_rdma_rm_dealloc_mr(mr_handle, mr->start); - if (mr->start) { - mr->virt -= (mr->start & (TARGET_PAGE_SIZE - 1)); - munmap(mr->virt, mr->length); - } - rdma_res_tbl_dealloc(&dev_res->mr_tbl, mr_handle); - } -} - -int rdma_rm_alloc_uc(RdmaDeviceResources *dev_res, uint32_t pfn, - uint32_t *uc_handle) -{ - RdmaRmUC *uc; - - /* TODO: Need to make sure pfn is between bar start address and - * bsd+RDMA_BAR2_UAR_SIZE - if (pfn > RDMA_BAR2_UAR_SIZE) { - rdma_error_report("pfn out of range (%d > %d)", pfn, - RDMA_BAR2_UAR_SIZE); - return -ENOMEM; - } - */ - - uc = rdma_res_tbl_alloc(&dev_res->uc_tbl, uc_handle); - if (!uc) { - return -ENOMEM; - } - - return 0; -} - -RdmaRmUC *rdma_rm_get_uc(RdmaDeviceResources *dev_res, uint32_t uc_handle) -{ - return rdma_res_tbl_get(&dev_res->uc_tbl, uc_handle); -} - -void rdma_rm_dealloc_uc(RdmaDeviceResources *dev_res, uint32_t uc_handle) -{ - RdmaRmUC *uc = rdma_rm_get_uc(dev_res, uc_handle); - - if (uc) { - rdma_res_tbl_dealloc(&dev_res->uc_tbl, uc_handle); - } -} - -RdmaRmCQ *rdma_rm_get_cq(RdmaDeviceResources *dev_res, uint32_t cq_handle) -{ - return rdma_res_tbl_get(&dev_res->cq_tbl, cq_handle); -} - -int rdma_rm_alloc_cq(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev, - uint32_t cqe, uint32_t *cq_handle, void *opaque) -{ - int rc; - RdmaRmCQ *cq; - - cq = rdma_res_tbl_alloc(&dev_res->cq_tbl, cq_handle); - if (!cq) { - return -ENOMEM; - } - - cq->opaque = opaque; - cq->notify = CNT_CLEAR; - - rc = rdma_backend_create_cq(backend_dev, &cq->backend_cq, cqe); - if (rc) { - rc = -EIO; - goto out_dealloc_cq; - } - - return 0; - -out_dealloc_cq: - rdma_rm_dealloc_cq(dev_res, *cq_handle); - - return rc; -} - -void rdma_rm_req_notify_cq(RdmaDeviceResources *dev_res, uint32_t cq_handle, - bool notify) -{ - RdmaRmCQ *cq; - - cq = rdma_rm_get_cq(dev_res, cq_handle); - if (!cq) { - return; - } - - if (cq->notify != CNT_SET) { - cq->notify = notify ? CNT_ARM : CNT_CLEAR; - } -} - -void rdma_rm_dealloc_cq(RdmaDeviceResources *dev_res, uint32_t cq_handle) -{ - RdmaRmCQ *cq; - - cq = rdma_rm_get_cq(dev_res, cq_handle); - if (!cq) { - return; - } - - rdma_backend_destroy_cq(&cq->backend_cq); - - rdma_res_tbl_dealloc(&dev_res->cq_tbl, cq_handle); -} - -RdmaRmQP *rdma_rm_get_qp(RdmaDeviceResources *dev_res, uint32_t qpn) -{ - GBytes *key = g_bytes_new(&qpn, sizeof(qpn)); - - RdmaRmQP *qp = g_hash_table_lookup(dev_res->qp_hash, key); - - g_bytes_unref(key); - - if (!qp) { - rdma_error_report("Invalid QP handle %d", qpn); - } - - return qp; -} - -int rdma_rm_alloc_qp(RdmaDeviceResources *dev_res, uint32_t pd_handle, - uint8_t qp_type, uint32_t max_send_wr, - uint32_t max_send_sge, uint32_t send_cq_handle, - uint32_t max_recv_wr, uint32_t max_recv_sge, - uint32_t recv_cq_handle, void *opaque, uint32_t *qpn, - uint8_t is_srq, uint32_t srq_handle) -{ - int rc; - RdmaRmQP *qp; - RdmaRmCQ *scq, *rcq; - RdmaRmPD *pd; - RdmaRmSRQ *srq = NULL; - uint32_t rm_qpn; - - pd = rdma_rm_get_pd(dev_res, pd_handle); - if (!pd) { - return -EINVAL; - } - - scq = rdma_rm_get_cq(dev_res, send_cq_handle); - rcq = rdma_rm_get_cq(dev_res, recv_cq_handle); - - if (!scq || !rcq) { - rdma_error_report("Invalid send_cqn or recv_cqn (%d, %d)", - send_cq_handle, recv_cq_handle); - return -EINVAL; - } - - if (is_srq) { - srq = rdma_rm_get_srq(dev_res, srq_handle); - if (!srq) { - rdma_error_report("Invalid srqn %d", srq_handle); - return -EINVAL; - } - - srq->recv_cq_handle = recv_cq_handle; - } - - if (qp_type == IBV_QPT_GSI) { - scq->notify = CNT_SET; - rcq->notify = CNT_SET; - } - - qp = rdma_res_tbl_alloc(&dev_res->qp_tbl, &rm_qpn); - if (!qp) { - return -ENOMEM; - } - - qp->qpn = rm_qpn; - qp->qp_state = IBV_QPS_RESET; - qp->qp_type = qp_type; - qp->send_cq_handle = send_cq_handle; - qp->recv_cq_handle = recv_cq_handle; - qp->opaque = opaque; - qp->is_srq = is_srq; - - rc = rdma_backend_create_qp(&qp->backend_qp, qp_type, &pd->backend_pd, - &scq->backend_cq, &rcq->backend_cq, - is_srq ? &srq->backend_srq : NULL, - max_send_wr, max_recv_wr, max_send_sge, - max_recv_sge); - - if (rc) { - rc = -EIO; - goto out_dealloc_qp; - } - - *qpn = rdma_backend_qpn(&qp->backend_qp); - trace_rdma_rm_alloc_qp(rm_qpn, *qpn, qp_type); - g_hash_table_insert(dev_res->qp_hash, g_bytes_new(qpn, sizeof(*qpn)), qp); - - return 0; - -out_dealloc_qp: - rdma_res_tbl_dealloc(&dev_res->qp_tbl, qp->qpn); - - return rc; -} - -int rdma_rm_modify_qp(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev, - uint32_t qp_handle, uint32_t attr_mask, uint8_t sgid_idx, - union ibv_gid *dgid, uint32_t dqpn, - enum ibv_qp_state qp_state, uint32_t qkey, - uint32_t rq_psn, uint32_t sq_psn) -{ - RdmaRmQP *qp; - int ret; - - qp = rdma_rm_get_qp(dev_res, qp_handle); - if (!qp) { - return -EINVAL; - } - - if (qp->qp_type == IBV_QPT_SMI) { - rdma_error_report("Got QP0 request"); - return -EPERM; - } else if (qp->qp_type == IBV_QPT_GSI) { - return 0; - } - - trace_rdma_rm_modify_qp(qp_handle, attr_mask, qp_state, sgid_idx); - - if (attr_mask & IBV_QP_STATE) { - qp->qp_state = qp_state; - - if (qp->qp_state == IBV_QPS_INIT) { - ret = rdma_backend_qp_state_init(backend_dev, &qp->backend_qp, - qp->qp_type, qkey); - if (ret) { - return -EIO; - } - } - - if (qp->qp_state == IBV_QPS_RTR) { - /* Get backend gid index */ - sgid_idx = rdma_rm_get_backend_gid_index(dev_res, backend_dev, - sgid_idx); - if (sgid_idx <= 0) { /* TODO check also less than bk.max_sgid */ - rdma_error_report("Failed to get bk sgid_idx for sgid_idx %d", - sgid_idx); - return -EIO; - } - - ret = rdma_backend_qp_state_rtr(backend_dev, &qp->backend_qp, - qp->qp_type, sgid_idx, dgid, dqpn, - rq_psn, qkey, - attr_mask & IBV_QP_QKEY); - if (ret) { - return -EIO; - } - } - - if (qp->qp_state == IBV_QPS_RTS) { - ret = rdma_backend_qp_state_rts(&qp->backend_qp, qp->qp_type, - sq_psn, qkey, - attr_mask & IBV_QP_QKEY); - if (ret) { - return -EIO; - } - } - } - - return 0; -} - -int rdma_rm_query_qp(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev, - uint32_t qp_handle, struct ibv_qp_attr *attr, - int attr_mask, struct ibv_qp_init_attr *init_attr) -{ - RdmaRmQP *qp; - - qp = rdma_rm_get_qp(dev_res, qp_handle); - if (!qp) { - return -EINVAL; - } - - return rdma_backend_query_qp(&qp->backend_qp, attr, attr_mask, init_attr); -} - -void rdma_rm_dealloc_qp(RdmaDeviceResources *dev_res, uint32_t qp_handle) -{ - RdmaRmQP *qp; - GBytes *key; - - key = g_bytes_new(&qp_handle, sizeof(qp_handle)); - qp = g_hash_table_lookup(dev_res->qp_hash, key); - g_hash_table_remove(dev_res->qp_hash, key); - g_bytes_unref(key); - - if (!qp) { - return; - } - - rdma_backend_destroy_qp(&qp->backend_qp, dev_res); - - rdma_res_tbl_dealloc(&dev_res->qp_tbl, qp->qpn); -} - -RdmaRmSRQ *rdma_rm_get_srq(RdmaDeviceResources *dev_res, uint32_t srq_handle) -{ - return rdma_res_tbl_get(&dev_res->srq_tbl, srq_handle); -} - -int rdma_rm_alloc_srq(RdmaDeviceResources *dev_res, uint32_t pd_handle, - uint32_t max_wr, uint32_t max_sge, uint32_t srq_limit, - uint32_t *srq_handle, void *opaque) -{ - RdmaRmSRQ *srq; - RdmaRmPD *pd; - int rc; - - pd = rdma_rm_get_pd(dev_res, pd_handle); - if (!pd) { - return -EINVAL; - } - - srq = rdma_res_tbl_alloc(&dev_res->srq_tbl, srq_handle); - if (!srq) { - return -ENOMEM; - } - - rc = rdma_backend_create_srq(&srq->backend_srq, &pd->backend_pd, - max_wr, max_sge, srq_limit); - if (rc) { - rc = -EIO; - goto out_dealloc_srq; - } - - srq->opaque = opaque; - - return 0; - -out_dealloc_srq: - rdma_res_tbl_dealloc(&dev_res->srq_tbl, *srq_handle); - - return rc; -} - -int rdma_rm_query_srq(RdmaDeviceResources *dev_res, uint32_t srq_handle, - struct ibv_srq_attr *srq_attr) -{ - RdmaRmSRQ *srq; - - srq = rdma_rm_get_srq(dev_res, srq_handle); - if (!srq) { - return -EINVAL; - } - - return rdma_backend_query_srq(&srq->backend_srq, srq_attr); -} - -int rdma_rm_modify_srq(RdmaDeviceResources *dev_res, uint32_t srq_handle, - struct ibv_srq_attr *srq_attr, int srq_attr_mask) -{ - RdmaRmSRQ *srq; - - srq = rdma_rm_get_srq(dev_res, srq_handle); - if (!srq) { - return -EINVAL; - } - - if ((srq_attr_mask & IBV_SRQ_LIMIT) && - (srq_attr->srq_limit == 0)) { - return -EINVAL; - } - - if ((srq_attr_mask & IBV_SRQ_MAX_WR) && - (srq_attr->max_wr == 0)) { - return -EINVAL; - } - - return rdma_backend_modify_srq(&srq->backend_srq, srq_attr, - srq_attr_mask); -} - -void rdma_rm_dealloc_srq(RdmaDeviceResources *dev_res, uint32_t srq_handle) -{ - RdmaRmSRQ *srq; - - srq = rdma_rm_get_srq(dev_res, srq_handle); - if (!srq) { - return; - } - - rdma_backend_destroy_srq(&srq->backend_srq, dev_res); - rdma_res_tbl_dealloc(&dev_res->srq_tbl, srq_handle); -} - -void *rdma_rm_get_cqe_ctx(RdmaDeviceResources *dev_res, uint32_t cqe_ctx_id) -{ - void **cqe_ctx; - - cqe_ctx = rdma_res_tbl_get(&dev_res->cqe_ctx_tbl, cqe_ctx_id); - if (!cqe_ctx) { - return NULL; - } - - return *cqe_ctx; -} - -int rdma_rm_alloc_cqe_ctx(RdmaDeviceResources *dev_res, uint32_t *cqe_ctx_id, - void *ctx) -{ - void **cqe_ctx; - - cqe_ctx = rdma_res_tbl_alloc(&dev_res->cqe_ctx_tbl, cqe_ctx_id); - if (!cqe_ctx) { - return -ENOMEM; - } - - *cqe_ctx = ctx; - - return 0; -} - -void rdma_rm_dealloc_cqe_ctx(RdmaDeviceResources *dev_res, uint32_t cqe_ctx_id) -{ - rdma_res_tbl_dealloc(&dev_res->cqe_ctx_tbl, cqe_ctx_id); -} - -int rdma_rm_add_gid(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev, - const char *ifname, union ibv_gid *gid, int gid_idx) -{ - int rc; - - rc = rdma_backend_add_gid(backend_dev, ifname, gid); - if (rc) { - return -EINVAL; - } - - memcpy(&dev_res->port.gid_tbl[gid_idx].gid, gid, sizeof(*gid)); - - return 0; -} - -int rdma_rm_del_gid(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev, - const char *ifname, int gid_idx) -{ - int rc; - - if (!dev_res->port.gid_tbl[gid_idx].gid.global.interface_id) { - return 0; - } - - rc = rdma_backend_del_gid(backend_dev, ifname, - &dev_res->port.gid_tbl[gid_idx].gid); - if (rc) { - return -EINVAL; - } - - memset(dev_res->port.gid_tbl[gid_idx].gid.raw, 0, - sizeof(dev_res->port.gid_tbl[gid_idx].gid)); - dev_res->port.gid_tbl[gid_idx].backend_gid_index = -1; - - return 0; -} - -int rdma_rm_get_backend_gid_index(RdmaDeviceResources *dev_res, - RdmaBackendDev *backend_dev, int sgid_idx) -{ - if (unlikely(sgid_idx < 0 || sgid_idx >= MAX_PORT_GIDS)) { - rdma_error_report("Got invalid sgid_idx %d", sgid_idx); - return -EINVAL; - } - - if (unlikely(dev_res->port.gid_tbl[sgid_idx].backend_gid_index == -1)) { - dev_res->port.gid_tbl[sgid_idx].backend_gid_index = - rdma_backend_get_gid_index(backend_dev, - &dev_res->port.gid_tbl[sgid_idx].gid); - } - - return dev_res->port.gid_tbl[sgid_idx].backend_gid_index; -} - -static void destroy_qp_hash_key(gpointer data) -{ - g_bytes_unref(data); -} - -static void init_ports(RdmaDeviceResources *dev_res) -{ - int i; - - memset(&dev_res->port, 0, sizeof(dev_res->port)); - - dev_res->port.state = IBV_PORT_DOWN; - for (i = 0; i < MAX_PORT_GIDS; i++) { - dev_res->port.gid_tbl[i].backend_gid_index = -1; - } -} - -static void fini_ports(RdmaDeviceResources *dev_res, - RdmaBackendDev *backend_dev, const char *ifname) -{ - int i; - - dev_res->port.state = IBV_PORT_DOWN; - for (i = 0; i < MAX_PORT_GIDS; i++) { - rdma_rm_del_gid(dev_res, backend_dev, ifname, i); - } -} - -int rdma_rm_init(RdmaDeviceResources *dev_res, struct ibv_device_attr *dev_attr) -{ - dev_res->qp_hash = g_hash_table_new_full(g_bytes_hash, g_bytes_equal, - destroy_qp_hash_key, NULL); - if (!dev_res->qp_hash) { - return -ENOMEM; - } - - res_tbl_init("PD", &dev_res->pd_tbl, dev_attr->max_pd, sizeof(RdmaRmPD)); - res_tbl_init("CQ", &dev_res->cq_tbl, dev_attr->max_cq, sizeof(RdmaRmCQ)); - res_tbl_init("MR", &dev_res->mr_tbl, dev_attr->max_mr, sizeof(RdmaRmMR)); - res_tbl_init("QP", &dev_res->qp_tbl, dev_attr->max_qp, sizeof(RdmaRmQP)); - res_tbl_init("CQE_CTX", &dev_res->cqe_ctx_tbl, dev_attr->max_qp * - dev_attr->max_qp_wr, sizeof(void *)); - res_tbl_init("UC", &dev_res->uc_tbl, MAX_UCS, sizeof(RdmaRmUC)); - res_tbl_init("SRQ", &dev_res->srq_tbl, dev_attr->max_srq, - sizeof(RdmaRmSRQ)); - - init_ports(dev_res); - - qemu_mutex_init(&dev_res->lock); - - memset(&dev_res->stats, 0, sizeof(dev_res->stats)); - qatomic_set(&dev_res->stats.missing_cqe, 0); - - return 0; -} - -void rdma_rm_fini(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev, - const char *ifname) -{ - qemu_mutex_destroy(&dev_res->lock); - - fini_ports(dev_res, backend_dev, ifname); - - res_tbl_free(&dev_res->srq_tbl); - res_tbl_free(&dev_res->uc_tbl); - res_tbl_free(&dev_res->cqe_ctx_tbl); - res_tbl_free(&dev_res->qp_tbl); - res_tbl_free(&dev_res->mr_tbl); - res_tbl_free(&dev_res->cq_tbl); - res_tbl_free(&dev_res->pd_tbl); - - if (dev_res->qp_hash) { - g_hash_table_destroy(dev_res->qp_hash); - } -} diff --git a/hw/rdma/rdma_rm.h b/hw/rdma/rdma_rm.h deleted file mode 100644 index d69a917795..0000000000 --- a/hw/rdma/rdma_rm.h +++ /dev/null @@ -1,97 +0,0 @@ -/* - * RDMA device: Definitions of Resource Manager functions - * - * Copyright (C) 2018 Oracle - * Copyright (C) 2018 Red Hat Inc - * - * Authors: - * Yuval Shaia <yuval.shaia@oracle.com> - * Marcel Apfelbaum <marcel@redhat.com> - * - * This work is licensed under the terms of the GNU GPL, version 2 or later. - * See the COPYING file in the top-level directory. - * - */ - -#ifndef RDMA_RM_H -#define RDMA_RM_H - -#include "qapi/error.h" -#include "rdma_backend_defs.h" -#include "rdma_rm_defs.h" - -int rdma_rm_init(RdmaDeviceResources *dev_res, - struct ibv_device_attr *dev_attr); -void rdma_rm_fini(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev, - const char *ifname); - -int rdma_rm_alloc_pd(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev, - uint32_t *pd_handle, uint32_t ctx_handle); -RdmaRmPD *rdma_rm_get_pd(RdmaDeviceResources *dev_res, uint32_t pd_handle); -void rdma_rm_dealloc_pd(RdmaDeviceResources *dev_res, uint32_t pd_handle); - -int rdma_rm_alloc_mr(RdmaDeviceResources *dev_res, uint32_t pd_handle, - uint64_t guest_start, uint64_t guest_length, - void *host_virt, int access_flags, uint32_t *mr_handle, - uint32_t *lkey, uint32_t *rkey); -RdmaRmMR *rdma_rm_get_mr(RdmaDeviceResources *dev_res, uint32_t mr_handle); -void rdma_rm_dealloc_mr(RdmaDeviceResources *dev_res, uint32_t mr_handle); - -int rdma_rm_alloc_uc(RdmaDeviceResources *dev_res, uint32_t pfn, - uint32_t *uc_handle); -RdmaRmUC *rdma_rm_get_uc(RdmaDeviceResources *dev_res, uint32_t uc_handle); -void rdma_rm_dealloc_uc(RdmaDeviceResources *dev_res, uint32_t uc_handle); - -int rdma_rm_alloc_cq(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev, - uint32_t cqe, uint32_t *cq_handle, void *opaque); -RdmaRmCQ *rdma_rm_get_cq(RdmaDeviceResources *dev_res, uint32_t cq_handle); -void rdma_rm_req_notify_cq(RdmaDeviceResources *dev_res, uint32_t cq_handle, - bool notify); -void rdma_rm_dealloc_cq(RdmaDeviceResources *dev_res, uint32_t cq_handle); - -int rdma_rm_alloc_qp(RdmaDeviceResources *dev_res, uint32_t pd_handle, - uint8_t qp_type, uint32_t max_send_wr, - uint32_t max_send_sge, uint32_t send_cq_handle, - uint32_t max_recv_wr, uint32_t max_recv_sge, - uint32_t recv_cq_handle, void *opaque, uint32_t *qpn, - uint8_t is_srq, uint32_t srq_handle); -RdmaRmQP *rdma_rm_get_qp(RdmaDeviceResources *dev_res, uint32_t qpn); -int rdma_rm_modify_qp(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev, - uint32_t qp_handle, uint32_t attr_mask, uint8_t sgid_idx, - union ibv_gid *dgid, uint32_t dqpn, - enum ibv_qp_state qp_state, uint32_t qkey, - uint32_t rq_psn, uint32_t sq_psn); -int rdma_rm_query_qp(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev, - uint32_t qp_handle, struct ibv_qp_attr *attr, - int attr_mask, struct ibv_qp_init_attr *init_attr); -void rdma_rm_dealloc_qp(RdmaDeviceResources *dev_res, uint32_t qp_handle); - -RdmaRmSRQ *rdma_rm_get_srq(RdmaDeviceResources *dev_res, uint32_t srq_handle); -int rdma_rm_alloc_srq(RdmaDeviceResources *dev_res, uint32_t pd_handle, - uint32_t max_wr, uint32_t max_sge, uint32_t srq_limit, - uint32_t *srq_handle, void *opaque); -int rdma_rm_query_srq(RdmaDeviceResources *dev_res, uint32_t srq_handle, - struct ibv_srq_attr *srq_attr); -int rdma_rm_modify_srq(RdmaDeviceResources *dev_res, uint32_t srq_handle, - struct ibv_srq_attr *srq_attr, int srq_attr_mask); -void rdma_rm_dealloc_srq(RdmaDeviceResources *dev_res, uint32_t srq_handle); - -int rdma_rm_alloc_cqe_ctx(RdmaDeviceResources *dev_res, uint32_t *cqe_ctx_id, - void *ctx); -void *rdma_rm_get_cqe_ctx(RdmaDeviceResources *dev_res, uint32_t cqe_ctx_id); -void rdma_rm_dealloc_cqe_ctx(RdmaDeviceResources *dev_res, uint32_t cqe_ctx_id); - -int rdma_rm_add_gid(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev, - const char *ifname, union ibv_gid *gid, int gid_idx); -int rdma_rm_del_gid(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev, - const char *ifname, int gid_idx); -int rdma_rm_get_backend_gid_index(RdmaDeviceResources *dev_res, - RdmaBackendDev *backend_dev, int sgid_idx); -static inline union ibv_gid *rdma_rm_get_gid(RdmaDeviceResources *dev_res, - int sgid_idx) -{ - return &dev_res->port.gid_tbl[sgid_idx].gid; -} -void rdma_format_device_counters(RdmaDeviceResources *dev_res, GString *buf); - -#endif diff --git a/hw/rdma/rdma_rm_defs.h b/hw/rdma/rdma_rm_defs.h deleted file mode 100644 index 534f2f74d3..0000000000 --- a/hw/rdma/rdma_rm_defs.h +++ /dev/null @@ -1,146 +0,0 @@ -/* - * RDMA device: Definitions of Resource Manager structures - * - * Copyright (C) 2018 Oracle - * Copyright (C) 2018 Red Hat Inc - * - * Authors: - * Yuval Shaia <yuval.shaia@oracle.com> - * Marcel Apfelbaum <marcel@redhat.com> - * - * This work is licensed under the terms of the GNU GPL, version 2 or later. - * See the COPYING file in the top-level directory. - * - */ - -#ifndef RDMA_RM_DEFS_H -#define RDMA_RM_DEFS_H - -#include "rdma_backend_defs.h" - -#define MAX_PORTS 1 /* Do not change - we support only one port */ -#define MAX_PORT_GIDS 255 -#define MAX_GIDS MAX_PORT_GIDS -#define MAX_PORT_PKEYS 1 -#define MAX_PKEYS MAX_PORT_PKEYS -#define MAX_UCS 512 -#define MAX_MR_SIZE (1UL << 27) -#define MAX_QP 1024 -#define MAX_SGE 4 -#define MAX_CQ 2048 -#define MAX_MR 1024 -#define MAX_PD 1024 -#define MAX_QP_RD_ATOM 16 -#define MAX_QP_INIT_RD_ATOM 16 -#define MAX_AH 64 -#define MAX_SRQ 512 - -#define MAX_RM_TBL_NAME 16 -#define MAX_CONSEQ_EMPTY_POLL_CQ 4096 /* considered as error above this */ - -typedef struct RdmaRmResTbl { - char name[MAX_RM_TBL_NAME]; - QemuMutex lock; - unsigned long *bitmap; - size_t tbl_sz; - size_t res_sz; - void *tbl; - uint32_t used; /* number of used entries in the table */ -} RdmaRmResTbl; - -typedef struct RdmaRmPD { - RdmaBackendPD backend_pd; - uint32_t ctx_handle; -} RdmaRmPD; - -typedef enum CQNotificationType { - CNT_CLEAR, - CNT_ARM, - CNT_SET, -} CQNotificationType; - -typedef struct RdmaRmCQ { - RdmaBackendCQ backend_cq; - void *opaque; - CQNotificationType notify; -} RdmaRmCQ; - -/* MR (DMA region) */ -typedef struct RdmaRmMR { - RdmaBackendMR backend_mr; - void *virt; - uint64_t start; - size_t length; - uint32_t pd_handle; - uint32_t lkey; - uint32_t rkey; -} RdmaRmMR; - -typedef struct RdmaRmUC { - uint64_t uc_handle; -} RdmaRmUC; - -typedef struct RdmaRmQP { - RdmaBackendQP backend_qp; - void *opaque; - uint32_t qp_type; - uint32_t qpn; - uint32_t send_cq_handle; - uint32_t recv_cq_handle; - enum ibv_qp_state qp_state; - uint8_t is_srq; -} RdmaRmQP; - -typedef struct RdmaRmSRQ { - RdmaBackendSRQ backend_srq; - uint32_t recv_cq_handle; - void *opaque; -} RdmaRmSRQ; - -typedef struct RdmaRmGid { - union ibv_gid gid; - int backend_gid_index; -} RdmaRmGid; - -typedef struct RdmaRmPort { - RdmaRmGid gid_tbl[MAX_PORT_GIDS]; - enum ibv_port_state state; -} RdmaRmPort; - -typedef struct RdmaRmStats { - uint64_t tx; - uint64_t tx_len; - uint64_t tx_err; - uint64_t rx_bufs; - uint64_t rx_bufs_len; - uint64_t rx_bufs_err; - uint64_t rx_srq; - uint64_t completions; - uint64_t mad_tx; - uint64_t mad_tx_err; - uint64_t mad_rx; - uint64_t mad_rx_err; - uint64_t mad_rx_bufs; - uint64_t mad_rx_bufs_err; - uint64_t poll_cq_from_bk; - uint64_t poll_cq_from_guest; - uint64_t poll_cq_from_guest_empty; - uint64_t poll_cq_ppoll_to; - uint32_t missing_cqe; -} RdmaRmStats; - -struct RdmaDeviceResources { - RdmaRmPort port; - RdmaRmResTbl pd_tbl; - RdmaRmResTbl mr_tbl; - RdmaRmResTbl uc_tbl; - RdmaRmResTbl qp_tbl; - RdmaRmResTbl cq_tbl; - RdmaRmResTbl cqe_ctx_tbl; - RdmaRmResTbl srq_tbl; - GHashTable *qp_hash; /* Keeps mapping between real and emulated */ - QemuMutex lock; - RdmaRmStats stats; -}; - -#endif diff --git a/hw/rdma/rdma_utils.c b/hw/rdma/rdma_utils.c deleted file mode 100644 index c948baf052..0000000000 --- a/hw/rdma/rdma_utils.c +++ /dev/null @@ -1,126 +0,0 @@ -/* - * QEMU paravirtual RDMA - Generic RDMA backend - * - * Copyright (C) 2018 Oracle - * Copyright (C) 2018 Red Hat Inc - * - * Authors: - * Yuval Shaia <yuval.shaia@oracle.com> - * Marcel Apfelbaum <marcel@redhat.com> - * - * This work is licensed under the terms of the GNU GPL, version 2 or later. - * See the COPYING file in the top-level directory. - * - */ - -#include "qemu/osdep.h" -#include "hw/pci/pci_device.h" -#include "trace.h" -#include "rdma_utils.h" - -void *rdma_pci_dma_map(PCIDevice *dev, dma_addr_t addr, dma_addr_t len) -{ - void *p; - dma_addr_t pci_len = len; - - if (!addr) { - rdma_error_report("addr is NULL"); - return NULL; - } - - p = pci_dma_map(dev, addr, &pci_len, DMA_DIRECTION_TO_DEVICE); - if (!p) { - rdma_error_report("pci_dma_map fail, addr=0x%"PRIx64", len=%"PRId64, - addr, pci_len); - return NULL; - } - - if (pci_len != len) { - rdma_pci_dma_unmap(dev, p, pci_len); - return NULL; - } - - trace_rdma_pci_dma_map(addr, p, pci_len); - - return p; -} - -void rdma_pci_dma_unmap(PCIDevice *dev, void *buffer, dma_addr_t len) -{ - trace_rdma_pci_dma_unmap(buffer); - if (buffer) { - pci_dma_unmap(dev, buffer, len, DMA_DIRECTION_TO_DEVICE, 0); - } -} - -void rdma_protected_gqueue_init(RdmaProtectedGQueue *list) -{ - qemu_mutex_init(&list->lock); - list->list = g_queue_new(); -} - -void rdma_protected_gqueue_destroy(RdmaProtectedGQueue *list) -{ - if (list->list) { - g_queue_free_full(list->list, g_free); - qemu_mutex_destroy(&list->lock); - list->list = NULL; - } -} - -void rdma_protected_gqueue_append_int64(RdmaProtectedGQueue *list, - int64_t value) -{ - qemu_mutex_lock(&list->lock); - g_queue_push_tail(list->list, g_memdup(&value, sizeof(value))); - qemu_mutex_unlock(&list->lock); -} - -int64_t rdma_protected_gqueue_pop_int64(RdmaProtectedGQueue *list) -{ - int64_t *valp; - int64_t val; - - qemu_mutex_lock(&list->lock); - - valp = g_queue_pop_head(list->list); - qemu_mutex_unlock(&list->lock); - - if (!valp) { - return -ENOENT; - } - - val = *valp; - g_free(valp); - return val; -} - -void rdma_protected_gslist_init(RdmaProtectedGSList *list) -{ - qemu_mutex_init(&list->lock); -} - -void rdma_protected_gslist_destroy(RdmaProtectedGSList *list) -{ - if (list->list) { - g_slist_free(list->list); - qemu_mutex_destroy(&list->lock); - list->list = NULL; - } -} - -void rdma_protected_gslist_append_int32(RdmaProtectedGSList *list, - int32_t value) -{ - qemu_mutex_lock(&list->lock); - list->list = g_slist_prepend(list->list, GINT_TO_POINTER(value)); - qemu_mutex_unlock(&list->lock); -} - -void rdma_protected_gslist_remove_int32(RdmaProtectedGSList *list, - int32_t value) -{ - qemu_mutex_lock(&list->lock); - list->list = g_slist_remove(list->list, GINT_TO_POINTER(value)); - qemu_mutex_unlock(&list->lock); -} diff --git a/hw/rdma/rdma_utils.h b/hw/rdma/rdma_utils.h deleted file mode 100644 index 54e4f56edd..0000000000 --- a/hw/rdma/rdma_utils.h +++ /dev/null @@ -1,63 +0,0 @@ -/* - * RDMA device: Debug utilities - * - * Copyright (C) 2018 Oracle - * Copyright (C) 2018 Red Hat Inc - * - * - * Authors: - * Yuval Shaia <yuval.shaia@oracle.com> - * Marcel Apfelbaum <marcel@redhat.com> - * - * This work is licensed under the terms of the GNU GPL, version 2 or later. - * See the COPYING file in the top-level directory. - * - */ - -#ifndef RDMA_UTILS_H -#define RDMA_UTILS_H - -#include "qemu/error-report.h" -#include "sysemu/dma.h" - -#define rdma_error_report(fmt, ...) \ - error_report("%s: " fmt, "rdma", ## __VA_ARGS__) -#define rdma_warn_report(fmt, ...) \ - warn_report("%s: " fmt, "rdma", ## __VA_ARGS__) -#define rdma_info_report(fmt, ...) \ - info_report("%s: " fmt, "rdma", ## __VA_ARGS__) - -typedef struct RdmaProtectedGQueue { - QemuMutex lock; - GQueue *list; -} RdmaProtectedGQueue; - -typedef struct RdmaProtectedGSList { - QemuMutex lock; - GSList *list; -} RdmaProtectedGSList; - -void *rdma_pci_dma_map(PCIDevice *dev, dma_addr_t addr, dma_addr_t len); -void rdma_pci_dma_unmap(PCIDevice *dev, void *buffer, dma_addr_t len); -void rdma_protected_gqueue_init(RdmaProtectedGQueue *list); -void rdma_protected_gqueue_destroy(RdmaProtectedGQueue *list); -void rdma_protected_gqueue_append_int64(RdmaProtectedGQueue *list, - int64_t value); -int64_t rdma_protected_gqueue_pop_int64(RdmaProtectedGQueue *list); -void rdma_protected_gslist_init(RdmaProtectedGSList *list); -void rdma_protected_gslist_destroy(RdmaProtectedGSList *list); -void rdma_protected_gslist_append_int32(RdmaProtectedGSList *list, - int32_t value); -void rdma_protected_gslist_remove_int32(RdmaProtectedGSList *list, - int32_t value); - -static inline void addrconf_addr_eui48(uint8_t *eui, const char *addr) -{ - memcpy(eui, addr, 3); - eui[3] = 0xFF; - eui[4] = 0xFE; - memcpy(eui + 5, addr + 3, 3); - eui[0] ^= 2; -} - -#endif diff --git a/hw/rdma/trace-events b/hw/rdma/trace-events deleted file mode 100644 index c23175120e..0000000000 --- a/hw/rdma/trace-events +++ /dev/null @@ -1,31 +0,0 @@ -# See docs/devel/tracing.rst for syntax documentation. - -# rdma_backend.c -rdma_check_dev_attr(const char *name, int max_bk, int max_fe) "%s: be=%d, fe=%d" -rdma_create_ah_cache_hit(uint64_t subnet, uint64_t if_id) "subnet=0x%"PRIx64",if_id=0x%"PRIx64 -rdma_create_ah_cache_miss(uint64_t subnet, uint64_t if_id) "subnet=0x%"PRIx64",if_id=0x%"PRIx64 -rdma_poll_cq(int ne, void *ibcq) "Got %d completion(s) from cq %p" -rdmacm_mux(const char *title, int msg_type, int op_code) "%s: msg_type=%d, op_code=%d" -rdmacm_mux_check_op_status(int msg_type, int op_code, int err_code) "resp: msg_type=%d, op_code=%d, err_code=%d" -rdma_mad_message(const char *title, int len, char *data) "mad %s (%d): %s" -rdma_backend_rc_qp_state_init(uint32_t qpn) "RC QP 0x%x switch to INIT" -rdma_backend_ud_qp_state_init(uint32_t qpn, uint32_t qkey) "UD QP 0x%x switch to INIT, qkey=0x%x" -rdma_backend_rc_qp_state_rtr(uint32_t qpn, uint64_t subnet, uint64_t ifid, uint8_t sgid_idx, uint32_t dqpn, uint32_t rq_psn) "RC QP 0x%x switch to RTR, subnet = 0x%"PRIx64", ifid = 0x%"PRIx64 ", sgid_idx=%d, dqpn=0x%x, rq_psn=0x%x" -rdma_backend_ud_qp_state_rtr(uint32_t qpn, uint32_t qkey) "UD QP 0x%x switch to RTR, qkey=0x%x" -rdma_backend_rc_qp_state_rts(uint32_t qpn, uint32_t sq_psn) "RC QP 0x%x switch to RTS, sq_psn=0x%x, " -rdma_backend_ud_qp_state_rts(uint32_t qpn, uint32_t sq_psn, uint32_t qkey) "UD QP 0x%x switch to RTS, sq_psn=0x%x, qkey=0x%x" -rdma_backend_get_gid_index(uint64_t subnet, uint64_t ifid, int gid_idx) "subnet=0x%"PRIx64", ifid=0x%"PRIx64 ", gid_idx=%d" -rdma_backend_gid_change(const char *op, uint64_t subnet, uint64_t ifid) "%s subnet=0x%"PRIx64", ifid=0x%"PRIx64 - -# rdma_rm.c -rdma_res_tbl_get(char *name, uint32_t handle) "tbl %s, handle %d" -rdma_res_tbl_alloc(char *name, uint32_t handle) "tbl %s, handle %d" -rdma_res_tbl_dealloc(char *name, uint32_t handle) "tbl %s, handle %d" -rdma_rm_alloc_mr(uint32_t mr_handle, void *host_virt, uint64_t guest_start, uint64_t guest_length, int access_flags) "mr_handle=%d, host_virt=%p, guest_start=0x%"PRIx64", length=%" PRId64", access_flags=0x%x" -rdma_rm_dealloc_mr(uint32_t mr_handle, uint64_t guest_start) "mr_handle=%d, guest_start=0x%"PRIx64 -rdma_rm_alloc_qp(uint32_t rm_qpn, uint32_t backend_qpn, uint8_t qp_type) "rm_qpn=%d, backend_qpn=0x%x, qp_type=%d" -rdma_rm_modify_qp(uint32_t qpn, uint32_t attr_mask, int qp_state, uint8_t sgid_idx) "qpn=0x%x, attr_mask=0x%x, qp_state=%d, sgid_idx=%d" - -# rdma_utils.c -rdma_pci_dma_map(uint64_t addr, void *vaddr, uint64_t len) "0x%"PRIx64" -> %p (len=%" PRIu64")" -rdma_pci_dma_unmap(void *vaddr) "%p" diff --git a/hw/rdma/trace.h b/hw/rdma/trace.h deleted file mode 100644 index b3fa8ebc51..0000000000 --- a/hw/rdma/trace.h +++ /dev/null @@ -1 +0,0 @@ -#include "trace/trace-hw_rdma.h" diff --git a/hw/rdma/vmw/pvrdma.h b/hw/rdma/vmw/pvrdma.h deleted file mode 100644 index 4cbc10c980..0000000000 --- a/hw/rdma/vmw/pvrdma.h +++ /dev/null @@ -1,144 +0,0 @@ -/* - * QEMU VMWARE paravirtual RDMA device definitions - * - * Copyright (C) 2018 Oracle - * Copyright (C) 2018 Red Hat Inc - * - * Authors: - * Yuval Shaia <yuval.shaia@oracle.com> - * Marcel Apfelbaum <marcel@redhat.com> - * - * This work is licensed under the terms of the GNU GPL, version 2 or later. - * See the COPYING file in the top-level directory. - * - */ - -#ifndef PVRDMA_PVRDMA_H -#define PVRDMA_PVRDMA_H - -#include "qemu/units.h" -#include "qemu/notify.h" -#include "hw/pci/msix.h" -#include "hw/pci/pci_device.h" -#include "chardev/char-fe.h" -#include "hw/net/vmxnet3_defs.h" - -#include "../rdma_backend_defs.h" -#include "../rdma_rm_defs.h" - -#include "standard-headers/drivers/infiniband/hw/vmw_pvrdma/pvrdma_dev_api.h" -#include "pvrdma_dev_ring.h" -#include "qom/object.h" - -/* BARs */ -#define RDMA_MSIX_BAR_IDX 0 -#define RDMA_REG_BAR_IDX 1 -#define RDMA_UAR_BAR_IDX 2 -#define RDMA_BAR0_MSIX_SIZE (16 * KiB) -#define RDMA_BAR1_REGS_SIZE 64 -#define RDMA_BAR2_UAR_SIZE (0x1000 * MAX_UCS) /* each uc gets page */ - -/* MSIX */ -#define RDMA_MAX_INTRS 3 -#define RDMA_MSIX_TABLE 0x0000 -#define RDMA_MSIX_PBA 0x2000 - -/* Interrupts Vectors */ -#define INTR_VEC_CMD_RING 0 -#define INTR_VEC_CMD_ASYNC_EVENTS 1 -#define INTR_VEC_CMD_COMPLETION_Q 2 - -/* HW attributes */ -#define PVRDMA_HW_NAME "pvrdma" -#define PVRDMA_HW_VERSION 17 -#define PVRDMA_FW_VERSION 14 - -/* Some defaults */ -#define PVRDMA_PKEY 0xFFFF - -typedef struct DSRInfo { - dma_addr_t dma; - struct pvrdma_device_shared_region *dsr; - - union pvrdma_cmd_req *req; - union pvrdma_cmd_resp *rsp; - - PvrdmaRingState *async_ring_state; - PvrdmaRing async; - - PvrdmaRingState *cq_ring_state; - PvrdmaRing cq; -} DSRInfo; - -typedef struct PVRDMADevStats { - uint64_t commands; - uint64_t regs_reads; - uint64_t regs_writes; - uint64_t uar_writes; - uint64_t interrupts; -} PVRDMADevStats; - -struct PVRDMADev { - PCIDevice parent_obj; - MemoryRegion msix; - MemoryRegion regs; - uint32_t regs_data[RDMA_BAR1_REGS_SIZE]; - MemoryRegion uar; - uint32_t uar_data[RDMA_BAR2_UAR_SIZE]; - DSRInfo dsr_info; - int interrupt_mask; - struct ibv_device_attr dev_attr; - uint64_t node_guid; - char *backend_eth_device_name; - char *backend_device_name; - uint8_t backend_port_num; - RdmaBackendDev backend_dev; - RdmaDeviceResources rdma_dev_res; - CharBackend mad_chr; - VMXNET3State *func0; - Notifier shutdown_notifier; - PVRDMADevStats stats; -}; -typedef struct PVRDMADev PVRDMADev; -DECLARE_INSTANCE_CHECKER(PVRDMADev, PVRDMA_DEV, - PVRDMA_HW_NAME) - -static inline int get_reg_val(PVRDMADev *dev, hwaddr addr, uint32_t *val) -{ - int idx = addr >> 2; - - if (idx >= RDMA_BAR1_REGS_SIZE) { - return -EINVAL; - } - - *val = dev->regs_data[idx]; - - return 0; -} - -static inline int set_reg_val(PVRDMADev *dev, hwaddr addr, uint32_t val) -{ - int idx = addr >> 2; - - if (idx >= RDMA_BAR1_REGS_SIZE) { - return -EINVAL; - } - - dev->regs_data[idx] = val; - - return 0; -} - -static inline void post_interrupt(PVRDMADev *dev, unsigned vector) -{ - PCIDevice *pci_dev = PCI_DEVICE(dev); - - if (likely(!dev->interrupt_mask)) { - dev->stats.interrupts++; - msix_notify(pci_dev, vector); - } -} - -int pvrdma_exec_cmd(PVRDMADev *dev); - -#endif diff --git a/hw/rdma/vmw/pvrdma_cmd.c b/hw/rdma/vmw/pvrdma_cmd.c deleted file mode 100644 index d385d18d9c..0000000000 --- a/hw/rdma/vmw/pvrdma_cmd.c +++ /dev/null @@ -1,815 +0,0 @@ -/* - * QEMU paravirtual RDMA - Command channel - * - * Copyright (C) 2018 Oracle - * Copyright (C) 2018 Red Hat Inc - * - * Authors: - * Yuval Shaia <yuval.shaia@oracle.com> - * Marcel Apfelbaum <marcel@redhat.com> - * - * This work is licensed under the terms of the GNU GPL, version 2 or later. - * See the COPYING file in the top-level directory. - * - */ - -#include "qemu/osdep.h" -#include "cpu.h" -#include "hw/pci/pci.h" -#include "hw/pci/pci_ids.h" - -#include "../rdma_backend.h" -#include "../rdma_rm.h" -#include "../rdma_utils.h" - -#include "trace.h" -#include "pvrdma.h" -#include "standard-headers/rdma/vmw_pvrdma-abi.h" - -static void *pvrdma_map_to_pdir(PCIDevice *pdev, uint64_t pdir_dma, - uint32_t nchunks, size_t length) -{ - uint64_t *dir, *tbl; - int tbl_idx, dir_idx, addr_idx; - void *host_virt = NULL, *curr_page; - - if (!nchunks) { - rdma_error_report("Got nchunks=0"); - return NULL; - } - - length = ROUND_UP(length, TARGET_PAGE_SIZE); - if (nchunks * TARGET_PAGE_SIZE != length) { - rdma_error_report("Invalid nchunks/length (%u, %lu)", nchunks, - (unsigned long)length); - return NULL; - } - - dir = rdma_pci_dma_map(pdev, pdir_dma, TARGET_PAGE_SIZE); - if (!dir) { - rdma_error_report("Failed to map to page directory"); - return NULL; - } - - tbl = rdma_pci_dma_map(pdev, dir[0], TARGET_PAGE_SIZE); - if (!tbl) { - rdma_error_report("Failed to map to page table 0"); - goto out_unmap_dir; - } - - curr_page = rdma_pci_dma_map(pdev, (dma_addr_t)tbl[0], TARGET_PAGE_SIZE); - if (!curr_page) { - rdma_error_report("Failed to map the page 0"); - goto out_unmap_tbl; - } - - host_virt = mremap(curr_page, 0, length, MREMAP_MAYMOVE); - if (host_virt == MAP_FAILED) { - host_virt = NULL; - rdma_error_report("Failed to remap memory for host_virt"); - goto out_unmap_tbl; - } - trace_pvrdma_map_to_pdir_host_virt(curr_page, host_virt); - - rdma_pci_dma_unmap(pdev, curr_page, TARGET_PAGE_SIZE); - - dir_idx = 0; - tbl_idx = 1; - addr_idx = 1; - while (addr_idx < nchunks) { - if (tbl_idx == TARGET_PAGE_SIZE / sizeof(uint64_t)) { - tbl_idx = 0; - dir_idx++; - rdma_pci_dma_unmap(pdev, tbl, TARGET_PAGE_SIZE); - tbl = rdma_pci_dma_map(pdev, dir[dir_idx], TARGET_PAGE_SIZE); - if (!tbl) { - rdma_error_report("Failed to map to page table %d", dir_idx); - goto out_unmap_host_virt; - } - } - - curr_page = rdma_pci_dma_map(pdev, (dma_addr_t)tbl[tbl_idx], - TARGET_PAGE_SIZE); - if (!curr_page) { - rdma_error_report("Failed to map to page %d, dir %d", tbl_idx, - dir_idx); - goto out_unmap_host_virt; - } - - mremap(curr_page, 0, TARGET_PAGE_SIZE, MREMAP_MAYMOVE | MREMAP_FIXED, - host_virt + TARGET_PAGE_SIZE * addr_idx); - - trace_pvrdma_map_to_pdir_next_page(addr_idx, curr_page, host_virt + - TARGET_PAGE_SIZE * addr_idx); - - rdma_pci_dma_unmap(pdev, curr_page, TARGET_PAGE_SIZE); - - addr_idx++; - - tbl_idx++; - } - - goto out_unmap_tbl; - -out_unmap_host_virt: - munmap(host_virt, length); - host_virt = NULL; - -out_unmap_tbl: - rdma_pci_dma_unmap(pdev, tbl, TARGET_PAGE_SIZE); - -out_unmap_dir: - rdma_pci_dma_unmap(pdev, dir, TARGET_PAGE_SIZE); - - return host_virt; -} - -static int query_port(PVRDMADev *dev, union pvrdma_cmd_req *req, - union pvrdma_cmd_resp *rsp) -{ - struct pvrdma_cmd_query_port *cmd = &req->query_port; - struct pvrdma_cmd_query_port_resp *resp = &rsp->query_port_resp; - struct ibv_port_attr attrs = {}; - - if (cmd->port_num > MAX_PORTS) { - return -EINVAL; - } - - if (rdma_backend_query_port(&dev->backend_dev, &attrs)) { - return -ENOMEM; - } - - memset(resp, 0, sizeof(*resp)); - - /* - * The state, max_mtu and active_mtu fields are enums; the values - * for pvrdma_port_state and pvrdma_mtu match those for - * ibv_port_state and ibv_mtu, so we can cast them safely. - */ - resp->attrs.state = dev->func0->device_active ? - (enum pvrdma_port_state)attrs.state : PVRDMA_PORT_DOWN; - resp->attrs.max_mtu = (enum pvrdma_mtu)attrs.max_mtu; - resp->attrs.active_mtu = (enum pvrdma_mtu)attrs.active_mtu; - resp->attrs.phys_state = attrs.phys_state; - resp->attrs.gid_tbl_len = MIN(MAX_PORT_GIDS, attrs.gid_tbl_len); - resp->attrs.max_msg_sz = 1024; - resp->attrs.pkey_tbl_len = MIN(MAX_PORT_PKEYS, attrs.pkey_tbl_len); - resp->attrs.active_width = 1; - resp->attrs.active_speed = 1; - - return 0; -} - -static int query_pkey(PVRDMADev *dev, union pvrdma_cmd_req *req, - union pvrdma_cmd_resp *rsp) -{ - struct pvrdma_cmd_query_pkey *cmd = &req->query_pkey; - struct pvrdma_cmd_query_pkey_resp *resp = &rsp->query_pkey_resp; - - if (cmd->port_num > MAX_PORTS) { - return -EINVAL; - } - - if (cmd->index > MAX_PKEYS) { - return -EINVAL; - } - - memset(resp, 0, sizeof(*resp)); - - resp->pkey = PVRDMA_PKEY; - - return 0; -} - -static int create_pd(PVRDMADev *dev, union pvrdma_cmd_req *req, - union pvrdma_cmd_resp *rsp) -{ - struct pvrdma_cmd_create_pd *cmd = &req->create_pd; - struct pvrdma_cmd_create_pd_resp *resp = &rsp->create_pd_resp; - - memset(resp, 0, sizeof(*resp)); - return rdma_rm_alloc_pd(&dev->rdma_dev_res, &dev->backend_dev, - &resp->pd_handle, cmd->ctx_handle); -} - -static int destroy_pd(PVRDMADev *dev, union pvrdma_cmd_req *req, - union pvrdma_cmd_resp *rsp) -{ - struct pvrdma_cmd_destroy_pd *cmd = &req->destroy_pd; - - rdma_rm_dealloc_pd(&dev->rdma_dev_res, cmd->pd_handle); - - return 0; -} - -static int create_mr(PVRDMADev *dev, union pvrdma_cmd_req *req, - union pvrdma_cmd_resp *rsp) -{ - struct pvrdma_cmd_create_mr *cmd = &req->create_mr; - struct pvrdma_cmd_create_mr_resp *resp = &rsp->create_mr_resp; - PCIDevice *pci_dev = PCI_DEVICE(dev); - void *host_virt = NULL; - int rc = 0; - - memset(resp, 0, sizeof(*resp)); - - if (!(cmd->flags & PVRDMA_MR_FLAG_DMA)) { - host_virt = pvrdma_map_to_pdir(pci_dev, cmd->pdir_dma, cmd->nchunks, - cmd->length); - if (!host_virt) { - rdma_error_report("Failed to map to pdir"); - return -EINVAL; - } - } - - rc = rdma_rm_alloc_mr(&dev->rdma_dev_res, cmd->pd_handle, cmd->start, - cmd->length, host_virt, cmd->access_flags, - &resp->mr_handle, &resp->lkey, &resp->rkey); - if (rc && host_virt) { - munmap(host_virt, cmd->length); - } - - return rc; -} - -static int destroy_mr(PVRDMADev *dev, union pvrdma_cmd_req *req, - union pvrdma_cmd_resp *rsp) -{ - struct pvrdma_cmd_destroy_mr *cmd = &req->destroy_mr; - - rdma_rm_dealloc_mr(&dev->rdma_dev_res, cmd->mr_handle); - - return 0; -} - -static int create_cq_ring(PCIDevice *pci_dev , PvrdmaRing **ring, - uint64_t pdir_dma, uint32_t nchunks, uint32_t cqe) -{ - uint64_t *dir = NULL, *tbl = NULL; - PvrdmaRing *r; - int rc = -EINVAL; - char ring_name[MAX_RING_NAME_SZ]; - - if (!nchunks || nchunks > PVRDMA_MAX_FAST_REG_PAGES) { - rdma_error_report("Got invalid nchunks: %d", nchunks); - return rc; - } - - dir = rdma_pci_dma_map(pci_dev, pdir_dma, TARGET_PAGE_SIZE); - if (!dir) { - rdma_error_report("Failed to map to CQ page directory"); - goto out; - } - - tbl = rdma_pci_dma_map(pci_dev, dir[0], TARGET_PAGE_SIZE); - if (!tbl) { - rdma_error_report("Failed to map to CQ page table"); - goto out; - } - - r = g_malloc(sizeof(*r)); - *ring = r; - - r->ring_state = rdma_pci_dma_map(pci_dev, tbl[0], TARGET_PAGE_SIZE); - - if (!r->ring_state) { - rdma_error_report("Failed to map to CQ ring state"); - goto out_free_ring; - } - - sprintf(ring_name, "cq_ring_%" PRIx64, pdir_dma); - rc = pvrdma_ring_init(r, ring_name, pci_dev, &r->ring_state[1], - cqe, sizeof(struct pvrdma_cqe), - /* first page is ring state */ - (dma_addr_t *)&tbl[1], nchunks - 1); - if (rc) { - goto out_unmap_ring_state; - } - - goto out; - -out_unmap_ring_state: - /* ring_state was in slot 1, not 0 so need to jump back */ - rdma_pci_dma_unmap(pci_dev, --r->ring_state, TARGET_PAGE_SIZE); - -out_free_ring: - g_free(r); - -out: - rdma_pci_dma_unmap(pci_dev, tbl, TARGET_PAGE_SIZE); - rdma_pci_dma_unmap(pci_dev, dir, TARGET_PAGE_SIZE); - - return rc; -} - -static void destroy_cq_ring(PvrdmaRing *ring) -{ - pvrdma_ring_free(ring); - /* ring_state was in slot 1, not 0 so need to jump back */ - rdma_pci_dma_unmap(ring->dev, --ring->ring_state, TARGET_PAGE_SIZE); - g_free(ring); -} - -static int create_cq(PVRDMADev *dev, union pvrdma_cmd_req *req, - union pvrdma_cmd_resp *rsp) -{ - struct pvrdma_cmd_create_cq *cmd = &req->create_cq; - struct pvrdma_cmd_create_cq_resp *resp = &rsp->create_cq_resp; - PvrdmaRing *ring = NULL; - int rc; - - memset(resp, 0, sizeof(*resp)); - - resp->cqe = cmd->cqe; - - rc = create_cq_ring(PCI_DEVICE(dev), &ring, cmd->pdir_dma, cmd->nchunks, - cmd->cqe); - if (rc) { - return rc; - } - - rc = rdma_rm_alloc_cq(&dev->rdma_dev_res, &dev->backend_dev, cmd->cqe, - &resp->cq_handle, ring); - if (rc) { - destroy_cq_ring(ring); - } - - resp->cqe = cmd->cqe; - - return rc; -} - -static int destroy_cq(PVRDMADev *dev, union pvrdma_cmd_req *req, - union pvrdma_cmd_resp *rsp) -{ - struct pvrdma_cmd_destroy_cq *cmd = &req->destroy_cq; - RdmaRmCQ *cq; - PvrdmaRing *ring; - - cq = rdma_rm_get_cq(&dev->rdma_dev_res, cmd->cq_handle); - if (!cq) { - rdma_error_report("Got invalid CQ handle"); - return -EINVAL; - } - - ring = (PvrdmaRing *)cq->opaque; - destroy_cq_ring(ring); - - rdma_rm_dealloc_cq(&dev->rdma_dev_res, cmd->cq_handle); - - return 0; -} - -static int create_qp_rings(PCIDevice *pci_dev, uint64_t pdir_dma, - PvrdmaRing **rings, uint32_t scqe, uint32_t smax_sge, - uint32_t spages, uint32_t rcqe, uint32_t rmax_sge, - uint32_t rpages, uint8_t is_srq) -{ - uint64_t *dir = NULL, *tbl = NULL; - PvrdmaRing *sr, *rr; - int rc = -EINVAL; - char ring_name[MAX_RING_NAME_SZ]; - uint32_t wqe_sz; - - if (!spages || spages > PVRDMA_MAX_FAST_REG_PAGES) { - rdma_error_report("Got invalid send page count for QP ring: %d", - spages); - return rc; - } - - if (!is_srq && (!rpages || rpages > PVRDMA_MAX_FAST_REG_PAGES)) { - rdma_error_report("Got invalid recv page count for QP ring: %d", - rpages); - return rc; - } - - dir = rdma_pci_dma_map(pci_dev, pdir_dma, TARGET_PAGE_SIZE); - if (!dir) { - rdma_error_report("Failed to map to QP page directory"); - goto out; - } - - tbl = rdma_pci_dma_map(pci_dev, dir[0], TARGET_PAGE_SIZE); - if (!tbl) { - rdma_error_report("Failed to map to QP page table"); - goto out; - } - - if (!is_srq) { - sr = g_malloc(2 * sizeof(*rr)); - rr = &sr[1]; - } else { - sr = g_malloc(sizeof(*sr)); - } - - *rings = sr; - - /* Create send ring */ - sr->ring_state = rdma_pci_dma_map(pci_dev, tbl[0], TARGET_PAGE_SIZE); - if (!sr->ring_state) { - rdma_error_report("Failed to map to QP ring state"); - goto out_free_sr_mem; - } - - wqe_sz = pow2ceil(sizeof(struct pvrdma_sq_wqe_hdr) + - sizeof(struct pvrdma_sge) * smax_sge - 1); - - sprintf(ring_name, "qp_sring_%" PRIx64, pdir_dma); - rc = pvrdma_ring_init(sr, ring_name, pci_dev, sr->ring_state, - scqe, wqe_sz, (dma_addr_t *)&tbl[1], spages); - if (rc) { - goto out_unmap_ring_state; - } - - if (!is_srq) { - /* Create recv ring */ - rr->ring_state = &sr->ring_state[1]; - wqe_sz = pow2ceil(sizeof(struct pvrdma_rq_wqe_hdr) + - sizeof(struct pvrdma_sge) * rmax_sge - 1); - sprintf(ring_name, "qp_rring_%" PRIx64, pdir_dma); - rc = pvrdma_ring_init(rr, ring_name, pci_dev, rr->ring_state, - rcqe, wqe_sz, (dma_addr_t *)&tbl[1 + spages], - rpages); - if (rc) { - goto out_free_sr; - } - } - - goto out; - -out_free_sr: - pvrdma_ring_free(sr); - -out_unmap_ring_state: - rdma_pci_dma_unmap(pci_dev, sr->ring_state, TARGET_PAGE_SIZE); - -out_free_sr_mem: - g_free(sr); - -out: - rdma_pci_dma_unmap(pci_dev, tbl, TARGET_PAGE_SIZE); - rdma_pci_dma_unmap(pci_dev, dir, TARGET_PAGE_SIZE); - - return rc; -} - -static void destroy_qp_rings(PvrdmaRing *ring, uint8_t is_srq) -{ - pvrdma_ring_free(&ring[0]); - if (!is_srq) { - pvrdma_ring_free(&ring[1]); - } - - rdma_pci_dma_unmap(ring->dev, ring->ring_state, TARGET_PAGE_SIZE); - g_free(ring); -} - -static int create_qp(PVRDMADev *dev, union pvrdma_cmd_req *req, - union pvrdma_cmd_resp *rsp) -{ - struct pvrdma_cmd_create_qp *cmd = &req->create_qp; - struct pvrdma_cmd_create_qp_resp *resp = &rsp->create_qp_resp; - PvrdmaRing *rings = NULL; - int rc; - - memset(resp, 0, sizeof(*resp)); - - rc = create_qp_rings(PCI_DEVICE(dev), cmd->pdir_dma, &rings, - cmd->max_send_wr, cmd->max_send_sge, cmd->send_chunks, - cmd->max_recv_wr, cmd->max_recv_sge, - cmd->total_chunks - cmd->send_chunks - 1, cmd->is_srq); - if (rc) { - return rc; - } - - rc = rdma_rm_alloc_qp(&dev->rdma_dev_res, cmd->pd_handle, cmd->qp_type, - cmd->max_send_wr, cmd->max_send_sge, - cmd->send_cq_handle, cmd->max_recv_wr, - cmd->max_recv_sge, cmd->recv_cq_handle, rings, - &resp->qpn, cmd->is_srq, cmd->srq_handle); - if (rc) { - destroy_qp_rings(rings, cmd->is_srq); - return rc; - } - - resp->max_send_wr = cmd->max_send_wr; - resp->max_recv_wr = cmd->max_recv_wr; - resp->max_send_sge = cmd->max_send_sge; - resp->max_recv_sge = cmd->max_recv_sge; - resp->max_inline_data = cmd->max_inline_data; - - return 0; -} - -static int modify_qp(PVRDMADev *dev, union pvrdma_cmd_req *req, - union pvrdma_cmd_resp *rsp) -{ - struct pvrdma_cmd_modify_qp *cmd = &req->modify_qp; - - /* No need to verify sgid_index since it is u8 */ - - return rdma_rm_modify_qp(&dev->rdma_dev_res, &dev->backend_dev, - cmd->qp_handle, cmd->attr_mask, - cmd->attrs.ah_attr.grh.sgid_index, - (union ibv_gid *)&cmd->attrs.ah_attr.grh.dgid, - cmd->attrs.dest_qp_num, - (enum ibv_qp_state)cmd->attrs.qp_state, - cmd->attrs.qkey, cmd->attrs.rq_psn, - cmd->attrs.sq_psn); -} - -static int query_qp(PVRDMADev *dev, union pvrdma_cmd_req *req, - union pvrdma_cmd_resp *rsp) -{ - struct pvrdma_cmd_query_qp *cmd = &req->query_qp; - struct pvrdma_cmd_query_qp_resp *resp = &rsp->query_qp_resp; - struct ibv_qp_init_attr init_attr; - - memset(resp, 0, sizeof(*resp)); - - return rdma_rm_query_qp(&dev->rdma_dev_res, &dev->backend_dev, - cmd->qp_handle, - (struct ibv_qp_attr *)&resp->attrs, - cmd->attr_mask, - &init_attr); -} - -static int destroy_qp(PVRDMADev *dev, union pvrdma_cmd_req *req, - union pvrdma_cmd_resp *rsp) -{ - struct pvrdma_cmd_destroy_qp *cmd = &req->destroy_qp; - RdmaRmQP *qp; - PvrdmaRing *ring; - - qp = rdma_rm_get_qp(&dev->rdma_dev_res, cmd->qp_handle); - if (!qp) { - return -EINVAL; - } - - ring = (PvrdmaRing *)qp->opaque; - destroy_qp_rings(ring, qp->is_srq); - rdma_rm_dealloc_qp(&dev->rdma_dev_res, cmd->qp_handle); - - return 0; -} - -static int create_bind(PVRDMADev *dev, union pvrdma_cmd_req *req, - union pvrdma_cmd_resp *rsp) -{ - struct pvrdma_cmd_create_bind *cmd = &req->create_bind; - union ibv_gid *gid = (union ibv_gid *)&cmd->new_gid; - - if (cmd->index >= MAX_PORT_GIDS) { - return -EINVAL; - } - - return rdma_rm_add_gid(&dev->rdma_dev_res, &dev->backend_dev, - dev->backend_eth_device_name, gid, cmd->index); -} - -static int destroy_bind(PVRDMADev *dev, union pvrdma_cmd_req *req, - union pvrdma_cmd_resp *rsp) -{ - struct pvrdma_cmd_destroy_bind *cmd = &req->destroy_bind; - - if (cmd->index >= MAX_PORT_GIDS) { - return -EINVAL; - } - - return rdma_rm_del_gid(&dev->rdma_dev_res, &dev->backend_dev, - dev->backend_eth_device_name, cmd->index); -} - -static int create_uc(PVRDMADev *dev, union pvrdma_cmd_req *req, - union pvrdma_cmd_resp *rsp) -{ - struct pvrdma_cmd_create_uc *cmd = &req->create_uc; - struct pvrdma_cmd_create_uc_resp *resp = &rsp->create_uc_resp; - - memset(resp, 0, sizeof(*resp)); - return rdma_rm_alloc_uc(&dev->rdma_dev_res, cmd->pfn, &resp->ctx_handle); -} - -static int destroy_uc(PVRDMADev *dev, union pvrdma_cmd_req *req, - union pvrdma_cmd_resp *rsp) -{ - struct pvrdma_cmd_destroy_uc *cmd = &req->destroy_uc; - - rdma_rm_dealloc_uc(&dev->rdma_dev_res, cmd->ctx_handle); - - return 0; -} - -static int create_srq_ring(PCIDevice *pci_dev, PvrdmaRing **ring, - uint64_t pdir_dma, uint32_t max_wr, - uint32_t max_sge, uint32_t nchunks) -{ - uint64_t *dir = NULL, *tbl = NULL; - PvrdmaRing *r; - int rc = -EINVAL; - char ring_name[MAX_RING_NAME_SZ]; - uint32_t wqe_sz; - - if (!nchunks || nchunks > PVRDMA_MAX_FAST_REG_PAGES) { - rdma_error_report("Got invalid page count for SRQ ring: %d", - nchunks); - return rc; - } - - dir = rdma_pci_dma_map(pci_dev, pdir_dma, TARGET_PAGE_SIZE); - if (!dir) { - rdma_error_report("Failed to map to SRQ page directory"); - goto out; - } - - tbl = rdma_pci_dma_map(pci_dev, dir[0], TARGET_PAGE_SIZE); - if (!tbl) { - rdma_error_report("Failed to map to SRQ page table"); - goto out; - } - - r = g_malloc(sizeof(*r)); - *ring = r; - - r->ring_state = rdma_pci_dma_map(pci_dev, tbl[0], TARGET_PAGE_SIZE); - if (!r->ring_state) { - rdma_error_report("Failed to map tp SRQ ring state"); - goto out_free_ring_mem; - } - - wqe_sz = pow2ceil(sizeof(struct pvrdma_rq_wqe_hdr) + - sizeof(struct pvrdma_sge) * max_sge - 1); - sprintf(ring_name, "srq_ring_%" PRIx64, pdir_dma); - rc = pvrdma_ring_init(r, ring_name, pci_dev, &r->ring_state[1], max_wr, - wqe_sz, (dma_addr_t *)&tbl[1], nchunks - 1); - if (rc) { - goto out_unmap_ring_state; - } - - goto out; - -out_unmap_ring_state: - rdma_pci_dma_unmap(pci_dev, r->ring_state, TARGET_PAGE_SIZE); - -out_free_ring_mem: - g_free(r); - -out: - rdma_pci_dma_unmap(pci_dev, tbl, TARGET_PAGE_SIZE); - rdma_pci_dma_unmap(pci_dev, dir, TARGET_PAGE_SIZE); - - return rc; -} - -static void destroy_srq_ring(PvrdmaRing *ring) -{ - pvrdma_ring_free(ring); - rdma_pci_dma_unmap(ring->dev, ring->ring_state, TARGET_PAGE_SIZE); - g_free(ring); -} - -static int create_srq(PVRDMADev *dev, union pvrdma_cmd_req *req, - union pvrdma_cmd_resp *rsp) -{ - struct pvrdma_cmd_create_srq *cmd = &req->create_srq; - struct pvrdma_cmd_create_srq_resp *resp = &rsp->create_srq_resp; - PvrdmaRing *ring = NULL; - int rc; - - memset(resp, 0, sizeof(*resp)); - - rc = create_srq_ring(PCI_DEVICE(dev), &ring, cmd->pdir_dma, - cmd->attrs.max_wr, cmd->attrs.max_sge, - cmd->nchunks); - if (rc) { - return rc; - } - - rc = rdma_rm_alloc_srq(&dev->rdma_dev_res, cmd->pd_handle, - cmd->attrs.max_wr, cmd->attrs.max_sge, - cmd->attrs.srq_limit, &resp->srqn, ring); - if (rc) { - destroy_srq_ring(ring); - return rc; - } - - return 0; -} - -static int query_srq(PVRDMADev *dev, union pvrdma_cmd_req *req, - union pvrdma_cmd_resp *rsp) -{ - struct pvrdma_cmd_query_srq *cmd = &req->query_srq; - struct pvrdma_cmd_query_srq_resp *resp = &rsp->query_srq_resp; - - memset(resp, 0, sizeof(*resp)); - - return rdma_rm_query_srq(&dev->rdma_dev_res, cmd->srq_handle, - (struct ibv_srq_attr *)&resp->attrs); -} - -static int modify_srq(PVRDMADev *dev, union pvrdma_cmd_req *req, - union pvrdma_cmd_resp *rsp) -{ - struct pvrdma_cmd_modify_srq *cmd = &req->modify_srq; - - /* Only support SRQ limit */ - if (!(cmd->attr_mask & IBV_SRQ_LIMIT) || - (cmd->attr_mask & IBV_SRQ_MAX_WR)) - return -EINVAL; - - return rdma_rm_modify_srq(&dev->rdma_dev_res, cmd->srq_handle, - (struct ibv_srq_attr *)&cmd->attrs, - cmd->attr_mask); -} - -static int destroy_srq(PVRDMADev *dev, union pvrdma_cmd_req *req, - union pvrdma_cmd_resp *rsp) -{ - struct pvrdma_cmd_destroy_srq *cmd = &req->destroy_srq; - RdmaRmSRQ *srq; - PvrdmaRing *ring; - - srq = rdma_rm_get_srq(&dev->rdma_dev_res, cmd->srq_handle); - if (!srq) { - return -EINVAL; - } - - ring = (PvrdmaRing *)srq->opaque; - destroy_srq_ring(ring); - rdma_rm_dealloc_srq(&dev->rdma_dev_res, cmd->srq_handle); - - return 0; -} - -struct cmd_handler { - uint32_t cmd; - uint32_t ack; - int (*exec)(PVRDMADev *dev, union pvrdma_cmd_req *req, - union pvrdma_cmd_resp *rsp); -}; - -static struct cmd_handler cmd_handlers[] = { - {PVRDMA_CMD_QUERY_PORT, PVRDMA_CMD_QUERY_PORT_RESP, query_port}, - {PVRDMA_CMD_QUERY_PKEY, PVRDMA_CMD_QUERY_PKEY_RESP, query_pkey}, - {PVRDMA_CMD_CREATE_PD, PVRDMA_CMD_CREATE_PD_RESP, create_pd}, - {PVRDMA_CMD_DESTROY_PD, PVRDMA_CMD_DESTROY_PD_RESP_NOOP, destroy_pd}, - {PVRDMA_CMD_CREATE_MR, PVRDMA_CMD_CREATE_MR_RESP, create_mr}, - {PVRDMA_CMD_DESTROY_MR, PVRDMA_CMD_DESTROY_MR_RESP_NOOP, destroy_mr}, - {PVRDMA_CMD_CREATE_CQ, PVRDMA_CMD_CREATE_CQ_RESP, create_cq}, - {PVRDMA_CMD_RESIZE_CQ, PVRDMA_CMD_RESIZE_CQ_RESP, NULL}, - {PVRDMA_CMD_DESTROY_CQ, PVRDMA_CMD_DESTROY_CQ_RESP_NOOP, destroy_cq}, - {PVRDMA_CMD_CREATE_QP, PVRDMA_CMD_CREATE_QP_RESP, create_qp}, - {PVRDMA_CMD_MODIFY_QP, PVRDMA_CMD_MODIFY_QP_RESP, modify_qp}, - {PVRDMA_CMD_QUERY_QP, PVRDMA_CMD_QUERY_QP_RESP, query_qp}, - {PVRDMA_CMD_DESTROY_QP, PVRDMA_CMD_DESTROY_QP_RESP, destroy_qp}, - {PVRDMA_CMD_CREATE_UC, PVRDMA_CMD_CREATE_UC_RESP, create_uc}, - {PVRDMA_CMD_DESTROY_UC, PVRDMA_CMD_DESTROY_UC_RESP_NOOP, destroy_uc}, - {PVRDMA_CMD_CREATE_BIND, PVRDMA_CMD_CREATE_BIND_RESP_NOOP, create_bind}, - {PVRDMA_CMD_DESTROY_BIND, PVRDMA_CMD_DESTROY_BIND_RESP_NOOP, destroy_bind}, - {PVRDMA_CMD_CREATE_SRQ, PVRDMA_CMD_CREATE_SRQ_RESP, create_srq}, - {PVRDMA_CMD_QUERY_SRQ, PVRDMA_CMD_QUERY_SRQ_RESP, query_srq}, - {PVRDMA_CMD_MODIFY_SRQ, PVRDMA_CMD_MODIFY_SRQ_RESP, modify_srq}, - {PVRDMA_CMD_DESTROY_SRQ, PVRDMA_CMD_DESTROY_SRQ_RESP, destroy_srq}, -}; - -int pvrdma_exec_cmd(PVRDMADev *dev) -{ - int err = 0xFFFF; - DSRInfo *dsr_info; - - dsr_info = &dev->dsr_info; - - if (!dsr_info->dsr) { - /* Buggy or malicious guest driver */ - rdma_error_report("Exec command without dsr, req or rsp buffers"); - goto out; - } - - if (dsr_info->req->hdr.cmd >= sizeof(cmd_handlers) / - sizeof(struct cmd_handler)) { - rdma_error_report("Unsupported command"); - goto out; - } - - if (!cmd_handlers[dsr_info->req->hdr.cmd].exec) { - rdma_error_report("Unsupported command (not implemented yet)"); - goto out; - } - - err = cmd_handlers[dsr_info->req->hdr.cmd].exec(dev, dsr_info->req, - dsr_info->rsp); - dsr_info->rsp->hdr.response = dsr_info->req->hdr.response; - dsr_info->rsp->hdr.ack = cmd_handlers[dsr_info->req->hdr.cmd].ack; - dsr_info->rsp->hdr.err = err < 0 ? -err : 0; - - trace_pvrdma_exec_cmd(dsr_info->req->hdr.cmd, dsr_info->rsp->hdr.err); - - dev->stats.commands++; - -out: - set_reg_val(dev, PVRDMA_REG_ERR, err); - post_interrupt(dev, INTR_VEC_CMD_RING); - - return (err == 0) ? 0 : -EINVAL; -} diff --git a/hw/rdma/vmw/pvrdma_dev_ring.c b/hw/rdma/vmw/pvrdma_dev_ring.c deleted file mode 100644 index 30ce22a5be..0000000000 --- a/hw/rdma/vmw/pvrdma_dev_ring.c +++ /dev/null @@ -1,141 +0,0 @@ -/* - * QEMU paravirtual RDMA - Device rings - * - * Copyright (C) 2018 Oracle - * Copyright (C) 2018 Red Hat Inc - * - * Authors: - * Yuval Shaia <yuval.shaia@oracle.com> - * Marcel Apfelbaum <marcel@redhat.com> - * - * This work is licensed under the terms of the GNU GPL, version 2 or later. - * See the COPYING file in the top-level directory. - * - */ - -#include "qemu/osdep.h" -#include "hw/pci/pci.h" -#include "cpu.h" -#include "qemu/cutils.h" - -#include "trace.h" - -#include "../rdma_utils.h" -#include "pvrdma_dev_ring.h" - -int pvrdma_ring_init(PvrdmaRing *ring, const char *name, PCIDevice *dev, - PvrdmaRingState *ring_state, uint32_t max_elems, - size_t elem_sz, dma_addr_t *tbl, uint32_t npages) -{ - int i; - int rc = 0; - - pstrcpy(ring->name, MAX_RING_NAME_SZ, name); - ring->dev = dev; - ring->ring_state = ring_state; - ring->max_elems = max_elems; - ring->elem_sz = elem_sz; - /* TODO: Give a moment to think if we want to redo driver settings - qatomic_set(&ring->ring_state->prod_tail, 0); - qatomic_set(&ring->ring_state->cons_head, 0); - */ - ring->npages = npages; - ring->pages = g_new0(void *, npages); - - for (i = 0; i < npages; i++) { - if (!tbl[i]) { - rdma_error_report("npages=%d but tbl[%d] is NULL", npages, i); - continue; - } - - ring->pages[i] = rdma_pci_dma_map(dev, tbl[i], TARGET_PAGE_SIZE); - if (!ring->pages[i]) { - rc = -ENOMEM; - rdma_error_report("Failed to map to page %d in ring %s", i, name); - goto out_free; - } - memset(ring->pages[i], 0, TARGET_PAGE_SIZE); - } - - goto out; - -out_free: - while (i--) { - rdma_pci_dma_unmap(dev, ring->pages[i], TARGET_PAGE_SIZE); - } - g_free(ring->pages); - -out: - return rc; -} - -void *pvrdma_ring_next_elem_read(PvrdmaRing *ring) -{ - unsigned int idx, offset; - const uint32_t tail = qatomic_read(&ring->ring_state->prod_tail); - const uint32_t head = qatomic_read(&ring->ring_state->cons_head); - - if (tail & ~((ring->max_elems << 1) - 1) || - head & ~((ring->max_elems << 1) - 1) || - tail == head) { - trace_pvrdma_ring_next_elem_read_no_data(ring->name); - return NULL; - } - - idx = head & (ring->max_elems - 1); - offset = idx * ring->elem_sz; - return ring->pages[offset / TARGET_PAGE_SIZE] + (offset % TARGET_PAGE_SIZE); -} - -void pvrdma_ring_read_inc(PvrdmaRing *ring) -{ - uint32_t idx = qatomic_read(&ring->ring_state->cons_head); - - idx = (idx + 1) & ((ring->max_elems << 1) - 1); - qatomic_set(&ring->ring_state->cons_head, idx); -} - -void *pvrdma_ring_next_elem_write(PvrdmaRing *ring) -{ - unsigned int idx, offset; - const uint32_t tail = qatomic_read(&ring->ring_state->prod_tail); - const uint32_t head = qatomic_read(&ring->ring_state->cons_head); - - if (tail & ~((ring->max_elems << 1) - 1) || - head & ~((ring->max_elems << 1) - 1) || - tail == (head ^ ring->max_elems)) { - rdma_error_report("CQ is full"); - return NULL; - } - - idx = tail & (ring->max_elems - 1); - offset = idx * ring->elem_sz; - return ring->pages[offset / TARGET_PAGE_SIZE] + (offset % TARGET_PAGE_SIZE); -} - -void pvrdma_ring_write_inc(PvrdmaRing *ring) -{ - uint32_t idx = qatomic_read(&ring->ring_state->prod_tail); - - idx = (idx + 1) & ((ring->max_elems << 1) - 1); - qatomic_set(&ring->ring_state->prod_tail, idx); -} - -void pvrdma_ring_free(PvrdmaRing *ring) -{ - if (!ring) { - return; - } - - if (!ring->pages) { - return; - } - - while (ring->npages--) { - rdma_pci_dma_unmap(ring->dev, ring->pages[ring->npages], - TARGET_PAGE_SIZE); - } - - g_free(ring->pages); - ring->pages = NULL; -} diff --git a/hw/rdma/vmw/pvrdma_dev_ring.h b/hw/rdma/vmw/pvrdma_dev_ring.h deleted file mode 100644 index d231588ce0..0000000000 --- a/hw/rdma/vmw/pvrdma_dev_ring.h +++ /dev/null @@ -1,46 +0,0 @@ -/* - * QEMU VMWARE paravirtual RDMA ring utilities - * - * Copyright (C) 2018 Oracle - * Copyright (C) 2018 Red Hat Inc - * - * Authors: - * Yuval Shaia <yuval.shaia@oracle.com> - * Marcel Apfelbaum <marcel@redhat.com> - * - * This work is licensed under the terms of the GNU GPL, version 2 or later. - * See the COPYING file in the top-level directory. - * - */ - -#ifndef PVRDMA_DEV_RING_H -#define PVRDMA_DEV_RING_H - - -#define MAX_RING_NAME_SZ 32 - -typedef struct PvrdmaRingState { - int prod_tail; /* producer tail */ - int cons_head; /* consumer head */ -} PvrdmaRingState; - -typedef struct PvrdmaRing { - char name[MAX_RING_NAME_SZ]; - PCIDevice *dev; - uint32_t max_elems; - size_t elem_sz; - PvrdmaRingState *ring_state; /* used only for unmap */ - int npages; - void **pages; -} PvrdmaRing; - -int pvrdma_ring_init(PvrdmaRing *ring, const char *name, PCIDevice *dev, - PvrdmaRingState *ring_state, uint32_t max_elems, - size_t elem_sz, dma_addr_t *tbl, uint32_t npages); -void *pvrdma_ring_next_elem_read(PvrdmaRing *ring); -void pvrdma_ring_read_inc(PvrdmaRing *ring); -void *pvrdma_ring_next_elem_write(PvrdmaRing *ring); -void pvrdma_ring_write_inc(PvrdmaRing *ring); -void pvrdma_ring_free(PvrdmaRing *ring); - -#endif diff --git a/hw/rdma/vmw/pvrdma_main.c b/hw/rdma/vmw/pvrdma_main.c deleted file mode 100644 index e735ff97eb..0000000000 --- a/hw/rdma/vmw/pvrdma_main.c +++ /dev/null @@ -1,735 +0,0 @@ -/* - * QEMU paravirtual RDMA - * - * Copyright (C) 2018 Oracle - * Copyright (C) 2018 Red Hat Inc - * - * Authors: - * Yuval Shaia <yuval.shaia@oracle.com> - * Marcel Apfelbaum <marcel@redhat.com> - * - * This work is licensed under the terms of the GNU GPL, version 2 or later. - * See the COPYING file in the top-level directory. - * - */ - -#include "qemu/osdep.h" -#include "qapi/error.h" -#include "qemu/module.h" -#include "hw/pci/pci.h" -#include "hw/pci/pci_ids.h" -#include "hw/pci/msi.h" -#include "hw/pci/msix.h" -#include "hw/qdev-properties.h" -#include "hw/qdev-properties-system.h" -#include "cpu.h" -#include "trace.h" -#include "monitor/monitor.h" -#include "hw/rdma/rdma.h" - -#include "../rdma_rm.h" -#include "../rdma_backend.h" -#include "../rdma_utils.h" - -#include <infiniband/verbs.h> -#include "pvrdma.h" -#include "standard-headers/rdma/vmw_pvrdma-abi.h" -#include "sysemu/runstate.h" -#include "standard-headers/drivers/infiniband/hw/vmw_pvrdma/pvrdma_dev_api.h" -#include "pvrdma_qp_ops.h" - -static Property pvrdma_dev_properties[] = { - DEFINE_PROP_STRING("netdev", PVRDMADev, backend_eth_device_name), - DEFINE_PROP_STRING("ibdev", PVRDMADev, backend_device_name), - DEFINE_PROP_UINT8("ibport", PVRDMADev, backend_port_num, 1), - DEFINE_PROP_UINT64("dev-caps-max-mr-size", PVRDMADev, dev_attr.max_mr_size, - MAX_MR_SIZE), - DEFINE_PROP_INT32("dev-caps-max-qp", PVRDMADev, dev_attr.max_qp, MAX_QP), - DEFINE_PROP_INT32("dev-caps-max-cq", PVRDMADev, dev_attr.max_cq, MAX_CQ), - DEFINE_PROP_INT32("dev-caps-max-mr", PVRDMADev, dev_attr.max_mr, MAX_MR), - DEFINE_PROP_INT32("dev-caps-max-pd", PVRDMADev, dev_attr.max_pd, MAX_PD), - DEFINE_PROP_INT32("dev-caps-qp-rd-atom", PVRDMADev, dev_attr.max_qp_rd_atom, - MAX_QP_RD_ATOM), - DEFINE_PROP_INT32("dev-caps-max-qp-init-rd-atom", PVRDMADev, - dev_attr.max_qp_init_rd_atom, MAX_QP_INIT_RD_ATOM), - DEFINE_PROP_INT32("dev-caps-max-ah", PVRDMADev, dev_attr.max_ah, MAX_AH), - DEFINE_PROP_INT32("dev-caps-max-srq", PVRDMADev, dev_attr.max_srq, MAX_SRQ), - DEFINE_PROP_CHR("mad-chardev", PVRDMADev, mad_chr), - DEFINE_PROP_END_OF_LIST(), -}; - -static void pvrdma_format_statistics(RdmaProvider *obj, GString *buf) -{ - PVRDMADev *dev = PVRDMA_DEV(obj); - PCIDevice *pdev = PCI_DEVICE(dev); - - g_string_append_printf(buf, "%s, %x.%x\n", - pdev->name, PCI_SLOT(pdev->devfn), - PCI_FUNC(pdev->devfn)); - g_string_append_printf(buf, "\tcommands : %" PRId64 "\n", - dev->stats.commands); - g_string_append_printf(buf, "\tregs_reads : %" PRId64 "\n", - dev->stats.regs_reads); - g_string_append_printf(buf, "\tregs_writes : %" PRId64 "\n", - dev->stats.regs_writes); - g_string_append_printf(buf, "\tuar_writes : %" PRId64 "\n", - dev->stats.uar_writes); - g_string_append_printf(buf, "\tinterrupts : %" PRId64 "\n", - dev->stats.interrupts); - rdma_format_device_counters(&dev->rdma_dev_res, buf); -} - -static void free_dev_ring(PCIDevice *pci_dev, PvrdmaRing *ring, - void *ring_state) -{ - pvrdma_ring_free(ring); - rdma_pci_dma_unmap(pci_dev, ring_state, TARGET_PAGE_SIZE); -} - -static int init_dev_ring(PvrdmaRing *ring, PvrdmaRingState **ring_state, - const char *name, PCIDevice *pci_dev, - dma_addr_t dir_addr, uint32_t num_pages) -{ - uint64_t *dir, *tbl; - int max_pages, rc = 0; - - if (!num_pages) { - rdma_error_report("Ring pages count must be strictly positive"); - return -EINVAL; - } - - /* - * Make sure we can satisfy the requested number of pages in a single - * TARGET_PAGE_SIZE sized page table (taking into account that first entry - * is reserved for ring-state) - */ - max_pages = TARGET_PAGE_SIZE / sizeof(dma_addr_t) - 1; - if (num_pages > max_pages) { - rdma_error_report("Maximum pages on a single directory must not exceed %d\n", - max_pages); - return -EINVAL; - } - - dir = rdma_pci_dma_map(pci_dev, dir_addr, TARGET_PAGE_SIZE); - if (!dir) { - rdma_error_report("Failed to map to page directory (ring %s)", name); - rc = -ENOMEM; - goto out; - } - - /* We support only one page table for a ring */ - tbl = rdma_pci_dma_map(pci_dev, dir[0], TARGET_PAGE_SIZE); - if (!tbl) { - rdma_error_report("Failed to map to page table (ring %s)", name); - rc = -ENOMEM; - goto out_free_dir; - } - - *ring_state = rdma_pci_dma_map(pci_dev, tbl[0], TARGET_PAGE_SIZE); - if (!*ring_state) { - rdma_error_report("Failed to map to ring state (ring %s)", name); - rc = -ENOMEM; - goto out_free_tbl; - } - /* RX ring is the second */ - (*ring_state)++; - rc = pvrdma_ring_init(ring, name, pci_dev, - (PvrdmaRingState *)*ring_state, - (num_pages - 1) * TARGET_PAGE_SIZE / - sizeof(struct pvrdma_cqne), - sizeof(struct pvrdma_cqne), - (dma_addr_t *)&tbl[1], (dma_addr_t)num_pages - 1); - if (rc) { - rc = -ENOMEM; - goto out_free_ring_state; - } - - goto out_free_tbl; - -out_free_ring_state: - rdma_pci_dma_unmap(pci_dev, *ring_state, TARGET_PAGE_SIZE); - -out_free_tbl: - rdma_pci_dma_unmap(pci_dev, tbl, TARGET_PAGE_SIZE); - -out_free_dir: - rdma_pci_dma_unmap(pci_dev, dir, TARGET_PAGE_SIZE); - -out: - return rc; -} - -static void free_dsr(PVRDMADev *dev) -{ - PCIDevice *pci_dev = PCI_DEVICE(dev); - - if (!dev->dsr_info.dsr) { - return; - } - - free_dev_ring(pci_dev, &dev->dsr_info.async, - dev->dsr_info.async_ring_state); - - free_dev_ring(pci_dev, &dev->dsr_info.cq, dev->dsr_info.cq_ring_state); - - rdma_pci_dma_unmap(pci_dev, dev->dsr_info.req, - sizeof(union pvrdma_cmd_req)); - - rdma_pci_dma_unmap(pci_dev, dev->dsr_info.rsp, - sizeof(union pvrdma_cmd_resp)); - - rdma_pci_dma_unmap(pci_dev, dev->dsr_info.dsr, - sizeof(struct pvrdma_device_shared_region)); - - dev->dsr_info.dsr = NULL; -} - -static int load_dsr(PVRDMADev *dev) -{ - int rc = 0; - PCIDevice *pci_dev = PCI_DEVICE(dev); - DSRInfo *dsr_info; - struct pvrdma_device_shared_region *dsr; - - free_dsr(dev); - - /* Map to DSR */ - dev->dsr_info.dsr = rdma_pci_dma_map(pci_dev, dev->dsr_info.dma, - sizeof(struct pvrdma_device_shared_region)); - if (!dev->dsr_info.dsr) { - rdma_error_report("Failed to map to DSR"); - rc = -ENOMEM; - goto out; - } - - /* Shortcuts */ - dsr_info = &dev->dsr_info; - dsr = dsr_info->dsr; - - /* Map to command slot */ - dsr_info->req = rdma_pci_dma_map(pci_dev, dsr->cmd_slot_dma, - sizeof(union pvrdma_cmd_req)); - if (!dsr_info->req) { - rdma_error_report("Failed to map to command slot address"); - rc = -ENOMEM; - goto out_free_dsr; - } - - /* Map to response slot */ - dsr_info->rsp = rdma_pci_dma_map(pci_dev, dsr->resp_slot_dma, - sizeof(union pvrdma_cmd_resp)); - if (!dsr_info->rsp) { - rdma_error_report("Failed to map to response slot address"); - rc = -ENOMEM; - goto out_free_req; - } - - /* Map to CQ notification ring */ - rc = init_dev_ring(&dsr_info->cq, &dsr_info->cq_ring_state, "dev_cq", - pci_dev, dsr->cq_ring_pages.pdir_dma, - dsr->cq_ring_pages.num_pages); - if (rc) { - rc = -ENOMEM; - goto out_free_rsp; - } - - /* Map to event notification ring */ - rc = init_dev_ring(&dsr_info->async, &dsr_info->async_ring_state, - "dev_async", pci_dev, dsr->async_ring_pages.pdir_dma, - dsr->async_ring_pages.num_pages); - if (rc) { - rc = -ENOMEM; - goto out_free_rsp; - } - - goto out; - -out_free_rsp: - rdma_pci_dma_unmap(pci_dev, dsr_info->rsp, sizeof(union pvrdma_cmd_resp)); - -out_free_req: - rdma_pci_dma_unmap(pci_dev, dsr_info->req, sizeof(union pvrdma_cmd_req)); - -out_free_dsr: - rdma_pci_dma_unmap(pci_dev, dsr_info->dsr, - sizeof(struct pvrdma_device_shared_region)); - dsr_info->dsr = NULL; - -out: - return rc; -} - -static void init_dsr_dev_caps(PVRDMADev *dev) -{ - struct pvrdma_device_shared_region *dsr; - - if (!dev->dsr_info.dsr) { - /* Buggy or malicious guest driver */ - rdma_error_report("Can't initialized DSR"); - return; - } - - dsr = dev->dsr_info.dsr; - dsr->caps.fw_ver = PVRDMA_FW_VERSION; - dsr->caps.mode = PVRDMA_DEVICE_MODE_ROCE; - dsr->caps.gid_types |= PVRDMA_GID_TYPE_FLAG_ROCE_V1; - dsr->caps.max_uar = RDMA_BAR2_UAR_SIZE; - dsr->caps.max_mr_size = dev->dev_attr.max_mr_size; - dsr->caps.max_qp = dev->dev_attr.max_qp; - dsr->caps.max_qp_wr = dev->dev_attr.max_qp_wr; - dsr->caps.max_sge = dev->dev_attr.max_sge; - dsr->caps.max_cq = dev->dev_attr.max_cq; - dsr->caps.max_cqe = dev->dev_attr.max_cqe; - dsr->caps.max_mr = dev->dev_attr.max_mr; - dsr->caps.max_pd = dev->dev_attr.max_pd; - dsr->caps.max_ah = dev->dev_attr.max_ah; - dsr->caps.max_srq = dev->dev_attr.max_srq; - dsr->caps.max_srq_wr = dev->dev_attr.max_srq_wr; - dsr->caps.max_srq_sge = dev->dev_attr.max_srq_sge; - dsr->caps.gid_tbl_len = MAX_GIDS; - dsr->caps.sys_image_guid = 0; - dsr->caps.node_guid = dev->node_guid; - dsr->caps.phys_port_cnt = MAX_PORTS; - dsr->caps.max_pkeys = MAX_PKEYS; -} - -static void uninit_msix(PCIDevice *pdev, int used_vectors) -{ - PVRDMADev *dev = PVRDMA_DEV(pdev); - int i; - - for (i = 0; i < used_vectors; i++) { - msix_vector_unuse(pdev, i); - } - - msix_uninit(pdev, &dev->msix, &dev->msix); -} - -static int init_msix(PCIDevice *pdev) -{ - PVRDMADev *dev = PVRDMA_DEV(pdev); - int i; - int rc; - - rc = msix_init(pdev, RDMA_MAX_INTRS, &dev->msix, RDMA_MSIX_BAR_IDX, - RDMA_MSIX_TABLE, &dev->msix, RDMA_MSIX_BAR_IDX, - RDMA_MSIX_PBA, 0, NULL); - - if (rc < 0) { - rdma_error_report("Failed to initialize MSI-X"); - return rc; - } - - for (i = 0; i < RDMA_MAX_INTRS; i++) { - msix_vector_use(PCI_DEVICE(dev), i); - } - - return 0; -} - -static void pvrdma_fini(PCIDevice *pdev) -{ - PVRDMADev *dev = PVRDMA_DEV(pdev); - - notifier_remove(&dev->shutdown_notifier); - - pvrdma_qp_ops_fini(); - - rdma_backend_stop(&dev->backend_dev); - - rdma_rm_fini(&dev->rdma_dev_res, &dev->backend_dev, - dev->backend_eth_device_name); - - rdma_backend_fini(&dev->backend_dev); - - free_dsr(dev); - - if (msix_enabled(pdev)) { - uninit_msix(pdev, RDMA_MAX_INTRS); - } - - rdma_info_report("Device %s %x.%x is down", pdev->name, - PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn)); -} - -static void pvrdma_stop(PVRDMADev *dev) -{ - rdma_backend_stop(&dev->backend_dev); -} - -static void pvrdma_start(PVRDMADev *dev) -{ - rdma_backend_start(&dev->backend_dev); -} - -static void activate_device(PVRDMADev *dev) -{ - pvrdma_start(dev); - set_reg_val(dev, PVRDMA_REG_ERR, 0); -} - -static int unquiesce_device(PVRDMADev *dev) -{ - return 0; -} - -static void reset_device(PVRDMADev *dev) -{ - pvrdma_stop(dev); -} - -static uint64_t pvrdma_regs_read(void *opaque, hwaddr addr, unsigned size) -{ - PVRDMADev *dev = opaque; - uint32_t val; - - dev->stats.regs_reads++; - - if (get_reg_val(dev, addr, &val)) { - rdma_error_report("Failed to read REG value from address 0x%x", - (uint32_t)addr); - return -EINVAL; - } - - trace_pvrdma_regs_read(addr, val); - - return val; -} - -static void pvrdma_regs_write(void *opaque, hwaddr addr, uint64_t val, - unsigned size) -{ - PVRDMADev *dev = opaque; - - dev->stats.regs_writes++; - - if (set_reg_val(dev, addr, val)) { - rdma_error_report("Failed to set REG value, addr=0x%"PRIx64 ", val=0x%"PRIx64, - addr, val); - return; - } - - switch (addr) { - case PVRDMA_REG_DSRLOW: - trace_pvrdma_regs_write(addr, val, "DSRLOW", ""); - dev->dsr_info.dma = val; - break; - case PVRDMA_REG_DSRHIGH: - trace_pvrdma_regs_write(addr, val, "DSRHIGH", ""); - dev->dsr_info.dma |= val << 32; - load_dsr(dev); - init_dsr_dev_caps(dev); - break; - case PVRDMA_REG_CTL: - switch (val) { - case PVRDMA_DEVICE_CTL_ACTIVATE: - trace_pvrdma_regs_write(addr, val, "CTL", "ACTIVATE"); - activate_device(dev); - break; - case PVRDMA_DEVICE_CTL_UNQUIESCE: - trace_pvrdma_regs_write(addr, val, "CTL", "UNQUIESCE"); - unquiesce_device(dev); - break; - case PVRDMA_DEVICE_CTL_RESET: - trace_pvrdma_regs_write(addr, val, "CTL", "URESET"); - reset_device(dev); - break; - } - break; - case PVRDMA_REG_IMR: - trace_pvrdma_regs_write(addr, val, "INTR_MASK", ""); - dev->interrupt_mask = val; - break; - case PVRDMA_REG_REQUEST: - if (val == 0) { - trace_pvrdma_regs_write(addr, val, "REQUEST", ""); - pvrdma_exec_cmd(dev); - } - break; - default: - break; - } -} - -static const MemoryRegionOps regs_ops = { - .read = pvrdma_regs_read, - .write = pvrdma_regs_write, - .endianness = DEVICE_LITTLE_ENDIAN, - .impl = { - .min_access_size = sizeof(uint32_t), - .max_access_size = sizeof(uint32_t), - }, -}; - -static uint64_t pvrdma_uar_read(void *opaque, hwaddr addr, unsigned size) -{ - return 0xffffffff; -} - -static void pvrdma_uar_write(void *opaque, hwaddr addr, uint64_t val, - unsigned size) -{ - PVRDMADev *dev = opaque; - - dev->stats.uar_writes++; - - switch (addr & 0xFFF) { /* Mask with 0xFFF as each UC gets page */ - case PVRDMA_UAR_QP_OFFSET: - if (val & PVRDMA_UAR_QP_SEND) { - trace_pvrdma_uar_write(addr, val, "QP", "SEND", - val & PVRDMA_UAR_HANDLE_MASK, 0); - pvrdma_qp_send(dev, val & PVRDMA_UAR_HANDLE_MASK); - } - if (val & PVRDMA_UAR_QP_RECV) { - trace_pvrdma_uar_write(addr, val, "QP", "RECV", - val & PVRDMA_UAR_HANDLE_MASK, 0); - pvrdma_qp_recv(dev, val & PVRDMA_UAR_HANDLE_MASK); - } - break; - case PVRDMA_UAR_CQ_OFFSET: - if (val & PVRDMA_UAR_CQ_ARM) { - trace_pvrdma_uar_write(addr, val, "CQ", "ARM", - val & PVRDMA_UAR_HANDLE_MASK, - !!(val & PVRDMA_UAR_CQ_ARM_SOL)); - rdma_rm_req_notify_cq(&dev->rdma_dev_res, - val & PVRDMA_UAR_HANDLE_MASK, - !!(val & PVRDMA_UAR_CQ_ARM_SOL)); - } - if (val & PVRDMA_UAR_CQ_ARM_SOL) { - trace_pvrdma_uar_write(addr, val, "CQ", "ARMSOL - not supported", 0, - 0); - } - if (val & PVRDMA_UAR_CQ_POLL) { - trace_pvrdma_uar_write(addr, val, "CQ", "POLL", - val & PVRDMA_UAR_HANDLE_MASK, 0); - pvrdma_cq_poll(&dev->rdma_dev_res, val & PVRDMA_UAR_HANDLE_MASK); - } - break; - case PVRDMA_UAR_SRQ_OFFSET: - if (val & PVRDMA_UAR_SRQ_RECV) { - trace_pvrdma_uar_write(addr, val, "QP", "SRQ", - val & PVRDMA_UAR_HANDLE_MASK, 0); - pvrdma_srq_recv(dev, val & PVRDMA_UAR_HANDLE_MASK); - } - break; - default: - rdma_error_report("Unsupported command, addr=0x%"PRIx64", val=0x%"PRIx64, - addr, val); - break; - } -} - -static const MemoryRegionOps uar_ops = { - .read = pvrdma_uar_read, - .write = pvrdma_uar_write, - .endianness = DEVICE_LITTLE_ENDIAN, - .impl = { - .min_access_size = sizeof(uint32_t), - .max_access_size = sizeof(uint32_t), - }, -}; - -static void init_pci_config(PCIDevice *pdev) -{ - pdev->config[PCI_INTERRUPT_PIN] = 1; -} - -static void init_bars(PCIDevice *pdev) -{ - PVRDMADev *dev = PVRDMA_DEV(pdev); - - /* BAR 0 - MSI-X */ - memory_region_init(&dev->msix, OBJECT(dev), "pvrdma-msix", - RDMA_BAR0_MSIX_SIZE); - pci_register_bar(pdev, RDMA_MSIX_BAR_IDX, PCI_BASE_ADDRESS_SPACE_MEMORY, - &dev->msix); - - /* BAR 1 - Registers */ - memset(&dev->regs_data, 0, sizeof(dev->regs_data)); - memory_region_init_io(&dev->regs, OBJECT(dev), ®s_ops, dev, - "pvrdma-regs", sizeof(dev->regs_data)); - pci_register_bar(pdev, RDMA_REG_BAR_IDX, PCI_BASE_ADDRESS_SPACE_MEMORY, - &dev->regs); - - /* BAR 2 - UAR */ - memset(&dev->uar_data, 0, sizeof(dev->uar_data)); - memory_region_init_io(&dev->uar, OBJECT(dev), &uar_ops, dev, "rdma-uar", - sizeof(dev->uar_data)); - pci_register_bar(pdev, RDMA_UAR_BAR_IDX, PCI_BASE_ADDRESS_SPACE_MEMORY, - &dev->uar); -} - -static void init_regs(PCIDevice *pdev) -{ - PVRDMADev *dev = PVRDMA_DEV(pdev); - - set_reg_val(dev, PVRDMA_REG_VERSION, PVRDMA_HW_VERSION); - set_reg_val(dev, PVRDMA_REG_ERR, 0xFFFF); -} - -static void init_dev_caps(PVRDMADev *dev) -{ - size_t pg_tbl_bytes = TARGET_PAGE_SIZE * - (TARGET_PAGE_SIZE / sizeof(uint64_t)); - size_t wr_sz = MAX(sizeof(struct pvrdma_sq_wqe_hdr), - sizeof(struct pvrdma_rq_wqe_hdr)); - - dev->dev_attr.max_qp_wr = pg_tbl_bytes / - (wr_sz + sizeof(struct pvrdma_sge) * - dev->dev_attr.max_sge) - TARGET_PAGE_SIZE; - /* First page is ring state ^^^^ */ - - dev->dev_attr.max_cqe = pg_tbl_bytes / sizeof(struct pvrdma_cqe) - - TARGET_PAGE_SIZE; /* First page is ring state */ - - dev->dev_attr.max_srq_wr = pg_tbl_bytes / - ((sizeof(struct pvrdma_rq_wqe_hdr) + - sizeof(struct pvrdma_sge)) * - dev->dev_attr.max_sge) - TARGET_PAGE_SIZE; -} - -static int pvrdma_check_ram_shared(Object *obj, void *opaque) -{ - bool *shared = opaque; - - if (object_dynamic_cast(obj, "memory-backend-ram")) { - *shared = object_property_get_bool(obj, "share", NULL); - } - - return 0; -} - -static void pvrdma_shutdown_notifier(Notifier *n, void *opaque) -{ - PVRDMADev *dev = container_of(n, PVRDMADev, shutdown_notifier); - PCIDevice *pci_dev = PCI_DEVICE(dev); - - pvrdma_fini(pci_dev); -} - -static void pvrdma_realize(PCIDevice *pdev, Error **errp) -{ - int rc = 0; - PVRDMADev *dev = PVRDMA_DEV(pdev); - Object *memdev_root; - bool ram_shared = false; - PCIDevice *func0; - - warn_report_once("pvrdma is deprecated and will be removed in a future release"); - - rdma_info_report("Initializing device %s %x.%x", pdev->name, - PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn)); - - if (TARGET_PAGE_SIZE != qemu_real_host_page_size()) { - error_setg(errp, "Target page size must be the same as host page size"); - return; - } - - func0 = pci_get_function_0(pdev); - /* Break if not vmxnet3 device in slot 0 */ - if (strcmp(object_get_typename(OBJECT(func0)), TYPE_VMXNET3)) { - error_setg(errp, "Device on %x.0 must be %s", PCI_SLOT(pdev->devfn), - TYPE_VMXNET3); - return; - } - dev->func0 = VMXNET3(func0); - - addrconf_addr_eui48((unsigned char *)&dev->node_guid, - (const char *)&dev->func0->conf.macaddr.a); - - memdev_root = object_resolve_path("/objects", NULL); - if (memdev_root) { - object_child_foreach(memdev_root, pvrdma_check_ram_shared, &ram_shared); - } - if (!ram_shared) { - error_setg(errp, "Only shared memory backed ram is supported"); - return; - } - - dev->dsr_info.dsr = NULL; - - init_pci_config(pdev); - - init_bars(pdev); - - init_regs(pdev); - - rc = init_msix(pdev); - if (rc) { - goto out; - } - - rc = rdma_backend_init(&dev->backend_dev, pdev, &dev->rdma_dev_res, - dev->backend_device_name, dev->backend_port_num, - &dev->dev_attr, &dev->mad_chr); - if (rc) { - goto out; - } - - init_dev_caps(dev); - - rc = rdma_rm_init(&dev->rdma_dev_res, &dev->dev_attr); - if (rc) { - goto out; - } - - rc = pvrdma_qp_ops_init(); - if (rc) { - goto out; - } - - memset(&dev->stats, 0, sizeof(dev->stats)); - - dev->shutdown_notifier.notify = pvrdma_shutdown_notifier; - qemu_register_shutdown_notifier(&dev->shutdown_notifier); - -#ifdef LEGACY_RDMA_REG_MR - rdma_info_report("Using legacy reg_mr"); -#else - rdma_info_report("Using iova reg_mr"); -#endif - -out: - if (rc) { - pvrdma_fini(pdev); - error_append_hint(errp, "Device failed to load\n"); - } -} - -static void pvrdma_class_init(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); - RdmaProviderClass *ir = RDMA_PROVIDER_CLASS(klass); - - k->realize = pvrdma_realize; - k->vendor_id = PCI_VENDOR_ID_VMWARE; - k->device_id = PCI_DEVICE_ID_VMWARE_PVRDMA; - k->revision = 0x00; - k->class_id = PCI_CLASS_NETWORK_OTHER; - - dc->desc = "RDMA Device"; - device_class_set_props(dc, pvrdma_dev_properties); - set_bit(DEVICE_CATEGORY_NETWORK, dc->categories); - - ir->format_statistics = pvrdma_format_statistics; -} - -static const TypeInfo pvrdma_info = { - .name = PVRDMA_HW_NAME, - .parent = TYPE_PCI_DEVICE, - .instance_size = sizeof(PVRDMADev), - .class_init = pvrdma_class_init, - .interfaces = (InterfaceInfo[]) { - { INTERFACE_CONVENTIONAL_PCI_DEVICE }, - { INTERFACE_RDMA_PROVIDER }, - { } - } -}; - -static void register_types(void) -{ - type_register_static(&pvrdma_info); -} - -type_init(register_types) diff --git a/hw/rdma/vmw/pvrdma_qp_ops.c b/hw/rdma/vmw/pvrdma_qp_ops.c deleted file mode 100644 index c30c8344f6..0000000000 --- a/hw/rdma/vmw/pvrdma_qp_ops.c +++ /dev/null @@ -1,298 +0,0 @@ -/* - * QEMU paravirtual RDMA - QP implementation - * - * Copyright (C) 2018 Oracle - * Copyright (C) 2018 Red Hat Inc - * - * Authors: - * Yuval Shaia <yuval.shaia@oracle.com> - * Marcel Apfelbaum <marcel@redhat.com> - * - * This work is licensed under the terms of the GNU GPL, version 2 or later. - * See the COPYING file in the top-level directory. - * - */ - -#include "qemu/osdep.h" - -#include "../rdma_utils.h" -#include "../rdma_rm.h" -#include "../rdma_backend.h" - -#include "trace.h" - -#include "pvrdma.h" -#include "standard-headers/rdma/vmw_pvrdma-abi.h" -#include "pvrdma_qp_ops.h" - -typedef struct CompHandlerCtx { - PVRDMADev *dev; - uint32_t cq_handle; - struct pvrdma_cqe cqe; -} CompHandlerCtx; - -/* Send Queue WQE */ -typedef struct PvrdmaSqWqe { - struct pvrdma_sq_wqe_hdr hdr; - struct pvrdma_sge sge[]; -} PvrdmaSqWqe; - -/* Recv Queue WQE */ -typedef struct PvrdmaRqWqe { - struct pvrdma_rq_wqe_hdr hdr; - struct pvrdma_sge sge[]; -} PvrdmaRqWqe; - -/* - * 1. Put CQE on send CQ ring - * 2. Put CQ number on dsr completion ring - * 3. Interrupt host - */ -static int pvrdma_post_cqe(PVRDMADev *dev, uint32_t cq_handle, - struct pvrdma_cqe *cqe, struct ibv_wc *wc) -{ - struct pvrdma_cqe *cqe1; - struct pvrdma_cqne *cqne; - PvrdmaRing *ring; - RdmaRmCQ *cq = rdma_rm_get_cq(&dev->rdma_dev_res, cq_handle); - - if (unlikely(!cq)) { - return -EINVAL; - } - - ring = (PvrdmaRing *)cq->opaque; - - /* Step #1: Put CQE on CQ ring */ - cqe1 = pvrdma_ring_next_elem_write(ring); - if (unlikely(!cqe1)) { - return -EINVAL; - } - - memset(cqe1, 0, sizeof(*cqe1)); - cqe1->wr_id = cqe->wr_id; - cqe1->qp = cqe->qp ? cqe->qp : wc->qp_num; - cqe1->opcode = cqe->opcode; - cqe1->status = wc->status; - cqe1->byte_len = wc->byte_len; - cqe1->src_qp = wc->src_qp; - cqe1->wc_flags = wc->wc_flags; - cqe1->vendor_err = wc->vendor_err; - - trace_pvrdma_post_cqe(cq_handle, cq->notify, cqe1->wr_id, cqe1->qp, - cqe1->opcode, cqe1->status, cqe1->byte_len, - cqe1->src_qp, cqe1->wc_flags, cqe1->vendor_err); - - pvrdma_ring_write_inc(ring); - - /* Step #2: Put CQ number on dsr completion ring */ - cqne = pvrdma_ring_next_elem_write(&dev->dsr_info.cq); - if (unlikely(!cqne)) { - return -EINVAL; - } - - cqne->info = cq_handle; - pvrdma_ring_write_inc(&dev->dsr_info.cq); - - if (cq->notify != CNT_CLEAR) { - if (cq->notify == CNT_ARM) { - cq->notify = CNT_CLEAR; - } - post_interrupt(dev, INTR_VEC_CMD_COMPLETION_Q); - } - - return 0; -} - -static void pvrdma_qp_ops_comp_handler(void *ctx, struct ibv_wc *wc) -{ - CompHandlerCtx *comp_ctx = (CompHandlerCtx *)ctx; - - pvrdma_post_cqe(comp_ctx->dev, comp_ctx->cq_handle, &comp_ctx->cqe, wc); - - g_free(ctx); -} - -static void complete_with_error(uint32_t vendor_err, void *ctx) -{ - struct ibv_wc wc = {}; - - wc.status = IBV_WC_GENERAL_ERR; - wc.vendor_err = vendor_err; - - pvrdma_qp_ops_comp_handler(ctx, &wc); -} - -void pvrdma_qp_ops_fini(void) -{ - rdma_backend_unregister_comp_handler(); -} - -int pvrdma_qp_ops_init(void) -{ - rdma_backend_register_comp_handler(pvrdma_qp_ops_comp_handler); - - return 0; -} - -void pvrdma_qp_send(PVRDMADev *dev, uint32_t qp_handle) -{ - RdmaRmQP *qp; - PvrdmaSqWqe *wqe; - PvrdmaRing *ring; - int sgid_idx; - union ibv_gid *sgid; - - qp = rdma_rm_get_qp(&dev->rdma_dev_res, qp_handle); - if (unlikely(!qp)) { - return; - } - - ring = (PvrdmaRing *)qp->opaque; - - wqe = pvrdma_ring_next_elem_read(ring); - while (wqe) { - CompHandlerCtx *comp_ctx; - - /* Prepare CQE */ - comp_ctx = g_new(CompHandlerCtx, 1); - comp_ctx->dev = dev; - comp_ctx->cq_handle = qp->send_cq_handle; - comp_ctx->cqe.wr_id = wqe->hdr.wr_id; - comp_ctx->cqe.qp = qp_handle; - comp_ctx->cqe.opcode = IBV_WC_SEND; - - sgid = rdma_rm_get_gid(&dev->rdma_dev_res, wqe->hdr.wr.ud.av.gid_index); - if (!sgid) { - rdma_error_report("Failed to get gid for idx %d", - wqe->hdr.wr.ud.av.gid_index); - complete_with_error(VENDOR_ERR_INV_GID_IDX, comp_ctx); - continue; - } - - sgid_idx = rdma_rm_get_backend_gid_index(&dev->rdma_dev_res, - &dev->backend_dev, - wqe->hdr.wr.ud.av.gid_index); - if (sgid_idx <= 0) { - rdma_error_report("Failed to get bk sgid_idx for sgid_idx %d", - wqe->hdr.wr.ud.av.gid_index); - complete_with_error(VENDOR_ERR_INV_GID_IDX, comp_ctx); - continue; - } - - if (wqe->hdr.num_sge > dev->dev_attr.max_sge) { - rdma_error_report("Invalid num_sge=%d (max %d)", wqe->hdr.num_sge, - dev->dev_attr.max_sge); - complete_with_error(VENDOR_ERR_INV_NUM_SGE, comp_ctx); - continue; - } - - rdma_backend_post_send(&dev->backend_dev, &qp->backend_qp, qp->qp_type, - (struct ibv_sge *)&wqe->sge[0], wqe->hdr.num_sge, - sgid_idx, sgid, - (union ibv_gid *)wqe->hdr.wr.ud.av.dgid, - wqe->hdr.wr.ud.remote_qpn, - wqe->hdr.wr.ud.remote_qkey, comp_ctx); - - pvrdma_ring_read_inc(ring); - - wqe = pvrdma_ring_next_elem_read(ring); - } -} - -void pvrdma_qp_recv(PVRDMADev *dev, uint32_t qp_handle) -{ - RdmaRmQP *qp; - PvrdmaRqWqe *wqe; - PvrdmaRing *ring; - - qp = rdma_rm_get_qp(&dev->rdma_dev_res, qp_handle); - if (unlikely(!qp)) { - return; - } - - ring = &((PvrdmaRing *)qp->opaque)[1]; - - wqe = pvrdma_ring_next_elem_read(ring); - while (wqe) { - CompHandlerCtx *comp_ctx; - - /* Prepare CQE */ - comp_ctx = g_new(CompHandlerCtx, 1); - comp_ctx->dev = dev; - comp_ctx->cq_handle = qp->recv_cq_handle; - comp_ctx->cqe.wr_id = wqe->hdr.wr_id; - comp_ctx->cqe.qp = qp_handle; - comp_ctx->cqe.opcode = IBV_WC_RECV; - - if (wqe->hdr.num_sge > dev->dev_attr.max_sge) { - rdma_error_report("Invalid num_sge=%d (max %d)", wqe->hdr.num_sge, - dev->dev_attr.max_sge); - complete_with_error(VENDOR_ERR_INV_NUM_SGE, comp_ctx); - continue; - } - - rdma_backend_post_recv(&dev->backend_dev, &qp->backend_qp, qp->qp_type, - (struct ibv_sge *)&wqe->sge[0], wqe->hdr.num_sge, - comp_ctx); - - pvrdma_ring_read_inc(ring); - - wqe = pvrdma_ring_next_elem_read(ring); - } -} - -void pvrdma_srq_recv(PVRDMADev *dev, uint32_t srq_handle) -{ - RdmaRmSRQ *srq; - PvrdmaRqWqe *wqe; - PvrdmaRing *ring; - - srq = rdma_rm_get_srq(&dev->rdma_dev_res, srq_handle); - if (unlikely(!srq)) { - return; - } - - ring = (PvrdmaRing *)srq->opaque; - - wqe = pvrdma_ring_next_elem_read(ring); - while (wqe) { - CompHandlerCtx *comp_ctx; - - /* Prepare CQE */ - comp_ctx = g_new(CompHandlerCtx, 1); - comp_ctx->dev = dev; - comp_ctx->cq_handle = srq->recv_cq_handle; - comp_ctx->cqe.wr_id = wqe->hdr.wr_id; - comp_ctx->cqe.qp = 0; - comp_ctx->cqe.opcode = IBV_WC_RECV; - - if (wqe->hdr.num_sge > dev->dev_attr.max_sge) { - rdma_error_report("Invalid num_sge=%d (max %d)", wqe->hdr.num_sge, - dev->dev_attr.max_sge); - complete_with_error(VENDOR_ERR_INV_NUM_SGE, comp_ctx); - continue; - } - - rdma_backend_post_srq_recv(&dev->backend_dev, &srq->backend_srq, - (struct ibv_sge *)&wqe->sge[0], - wqe->hdr.num_sge, - comp_ctx); - - pvrdma_ring_read_inc(ring); - - wqe = pvrdma_ring_next_elem_read(ring); - } - -} - -void pvrdma_cq_poll(RdmaDeviceResources *dev_res, uint32_t cq_handle) -{ - RdmaRmCQ *cq; - - cq = rdma_rm_get_cq(dev_res, cq_handle); - if (!cq) { - return; - } - - rdma_backend_poll_cq(dev_res, &cq->backend_cq); -} diff --git a/hw/rdma/vmw/pvrdma_qp_ops.h b/hw/rdma/vmw/pvrdma_qp_ops.h deleted file mode 100644 index bf2b15c5ce..0000000000 --- a/hw/rdma/vmw/pvrdma_qp_ops.h +++ /dev/null @@ -1,28 +0,0 @@ -/* - * QEMU VMWARE paravirtual RDMA QP Operations - * - * Copyright (C) 2018 Oracle - * Copyright (C) 2018 Red Hat Inc - * - * Authors: - * Yuval Shaia <yuval.shaia@oracle.com> - * Marcel Apfelbaum <marcel@redhat.com> - * - * This work is licensed under the terms of the GNU GPL, version 2 or later. - * See the COPYING file in the top-level directory. - * - */ - -#ifndef PVRDMA_QP_OPS_H -#define PVRDMA_QP_OPS_H - -#include "pvrdma.h" - -int pvrdma_qp_ops_init(void); -void pvrdma_qp_ops_fini(void); -void pvrdma_qp_send(PVRDMADev *dev, uint32_t qp_handle); -void pvrdma_qp_recv(PVRDMADev *dev, uint32_t qp_handle); -void pvrdma_srq_recv(PVRDMADev *dev, uint32_t srq_handle); -void pvrdma_cq_poll(RdmaDeviceResources *dev_res, uint32_t cq_handle); - -#endif diff --git a/hw/rdma/vmw/trace-events b/hw/rdma/vmw/trace-events deleted file mode 100644 index a6c77e1e10..0000000000 --- a/hw/rdma/vmw/trace-events +++ /dev/null @@ -1,17 +0,0 @@ -# See docs/devel/tracing.rst for syntax documentation. - -# pvrdma_main.c -pvrdma_regs_read(uint64_t addr, uint64_t val) "pvrdma.regs[0x%"PRIx64"]=0x%"PRIx64 -pvrdma_regs_write(uint64_t addr, uint64_t val, const char *reg_name, const char *val_name) "pvrdma.regs[0x%"PRIx64"]=0x%"PRIx64" (%s %s)" -pvrdma_uar_write(uint64_t addr, uint64_t val, const char *reg_name, const char *val_name, int val1, int val2) "uar[0x%"PRIx64"]=0x%"PRIx64" (cls=%s, op=%s, obj=%d, val=%d)" - -# pvrdma_cmd.c -pvrdma_map_to_pdir_host_virt(void *vfirst, void *vremaped) "mremap %p -> %p" -pvrdma_map_to_pdir_next_page(int page_idx, void *vnext, void *vremaped) "mremap [%d] %p -> %p" -pvrdma_exec_cmd(int cmd, int err) "cmd=%d, err=%d" - -# pvrdma_dev_ring.c -pvrdma_ring_next_elem_read_no_data(char *ring_name) "pvrdma_ring %s is empty" - -# pvrdma_qp_ops.c -pvrdma_post_cqe(uint32_t cq_handle, int notify, uint64_t wr_id, uint64_t qpn, uint32_t op_code, uint32_t status, uint32_t byte_len, uint32_t src_qp, uint32_t wc_flags, uint32_t vendor_err) "cq_handle=%d, notify=%d, wr_id=0x%"PRIx64", qpn=0x%"PRIx64", opcode=%d, status=%d, byte_len=%d, src_qp=%d, wc_flags=%d, vendor_err=%d" diff --git a/hw/rdma/vmw/trace.h b/hw/rdma/vmw/trace.h deleted file mode 100644 index 3ebc9fb7ad..0000000000 --- a/hw/rdma/vmw/trace.h +++ /dev/null @@ -1 +0,0 @@ -#include "trace/trace-hw_rdma_vmw.h" |