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Diffstat (limited to 'source4/cluster/ctdb/ib/ibwrapper.c')
-rw-r--r--source4/cluster/ctdb/ib/ibwrapper.c1361
1 files changed, 0 insertions, 1361 deletions
diff --git a/source4/cluster/ctdb/ib/ibwrapper.c b/source4/cluster/ctdb/ib/ibwrapper.c
deleted file mode 100644
index 31acbc4a2d..0000000000
--- a/source4/cluster/ctdb/ib/ibwrapper.c
+++ /dev/null
@@ -1,1361 +0,0 @@
-/*
- * Unix SMB/CIFS implementation.
- * Wrap Infiniband calls.
- *
- * Copyright (C) Sven Oehme <oehmes@de.ibm.com> 2006
- *
- * Major code contributions by Peter Somogyi <psomogyi@gamax.hu>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <netinet/in.h>
-#include <sys/socket.h>
-#include <netdb.h>
-#include <arpa/inet.h>
-#include <malloc.h>
-#include <assert.h>
-#include <unistd.h>
-
-#include "includes.h"
-#include "lib/events/events.h"
-#include "ibwrapper.h"
-
-#include <infiniband/kern-abi.h>
-#include <rdma/rdma_cma_abi.h>
-#include <rdma/rdma_cma.h>
-
-#include "ibwrapper_internal.h"
-#include "lib/util/dlinklist.h"
-
-#define IBW_LASTERR_BUFSIZE 512
-static char ibw_lasterr[IBW_LASTERR_BUFSIZE];
-
-#define IBW_MAX_SEND_WR 256
-#define IBW_MAX_RECV_WR 1024
-#define IBW_RECV_BUFSIZE 256
-#define IBW_RECV_THRESHOLD (1 * 1024 * 1024)
-
-static void ibw_event_handler_verbs(struct event_context *ev,
- struct fd_event *fde, uint16_t flags, void *private_data);
-static int ibw_fill_cq(struct ibw_conn *conn);
-static int ibw_wc_recv(struct ibw_conn *conn, struct ibv_wc *wc);
-static int ibw_wc_send(struct ibw_conn *conn, struct ibv_wc *wc);
-static int ibw_send_packet(struct ibw_conn *conn, void *buf, struct ibw_wr *p, uint32_t len);
-
-static void *ibw_alloc_mr(struct ibw_ctx_priv *pctx, struct ibw_conn_priv *pconn,
- uint32_t n, struct ibv_mr **ppmr)
-{
- void *buf;
-
- DEBUG(10, ("ibw_alloc_mr(cmid=%p, n=%u)\n", pconn->cm_id, n));
- buf = memalign(pctx->pagesize, n);
- if (!buf) {
- sprintf(ibw_lasterr, "couldn't allocate memory\n");
- return NULL;
- }
-
- *ppmr = ibv_reg_mr(pconn->pd, buf, n, IBV_ACCESS_LOCAL_WRITE);
- if (!*ppmr) {
- sprintf(ibw_lasterr, "couldn't allocate mr\n");
- free(buf);
- return NULL;
- }
-
- return buf;
-}
-
-static void ibw_free_mr(char **ppbuf, struct ibv_mr **ppmr)
-{
- DEBUG(10, ("ibw_free_mr(%p %p)\n", *ppbuf, *ppmr));
- if (*ppmr!=NULL) {
- ibv_dereg_mr(*ppmr);
- *ppmr = NULL;
- }
- if (*ppbuf) {
- free(*ppbuf);
- *ppbuf = NULL;
- }
-}
-
-static int ibw_init_memory(struct ibw_conn *conn)
-{
- struct ibw_ctx_priv *pctx = talloc_get_type(conn->ctx->internal, struct ibw_ctx_priv);
- struct ibw_conn_priv *pconn = talloc_get_type(conn->internal, struct ibw_conn_priv);
- struct ibw_opts *opts = &pctx->opts;
- int i;
- struct ibw_wr *p;
-
- DEBUG(10, ("ibw_init_memory(cmid: %p)\n", pconn->cm_id));
- pconn->buf_send = ibw_alloc_mr(pctx, pconn,
- opts->max_send_wr * opts->recv_bufsize, &pconn->mr_send);
- if (!pconn->buf_send) {
- sprintf(ibw_lasterr, "couldn't allocate work send buf\n");
- return -1;
- }
-
- pconn->buf_recv = ibw_alloc_mr(pctx, pconn,
- opts->max_recv_wr * opts->recv_bufsize, &pconn->mr_recv);
- if (!pconn->buf_recv) {
- sprintf(ibw_lasterr, "couldn't allocate work recv buf\n");
- return -1;
- }
-
- pconn->wr_index = talloc_size(pconn, opts->max_send_wr * sizeof(struct ibw_wr *));
- assert(pconn->wr_index!=NULL);
-
- for(i=0; i<opts->max_send_wr; i++) {
- p = pconn->wr_index[i] = talloc_zero(pconn, struct ibw_wr);
- p->buf = pconn->buf_send + (i * opts->recv_bufsize);
- p->wr_id = i;
-
- DLIST_ADD(pconn->wr_list_avail, p);
- }
-
- return 0;
-}
-
-static int ibw_ctx_priv_destruct(struct ibw_ctx_priv *pctx)
-{
- DEBUG(10, ("ibw_ctx_priv_destruct(%p)\n", pctx));
-
- /* destroy cm */
- if (pctx->cm_channel) {
- rdma_destroy_event_channel(pctx->cm_channel);
- pctx->cm_channel = NULL;
- }
- if (pctx->cm_channel_event) {
- /* TODO: do we have to do this here? */
- talloc_free(pctx->cm_channel_event);
- pctx->cm_channel_event = NULL;
- }
- if (pctx->cm_id) {
- rdma_destroy_id(pctx->cm_id);
- pctx->cm_id = NULL;
- }
-
- return 0;
-}
-
-static int ibw_ctx_destruct(struct ibw_ctx *ctx)
-{
- DEBUG(10, ("ibw_ctx_destruct(%p)\n", ctx));
- return 0;
-}
-
-static int ibw_conn_priv_destruct(struct ibw_conn_priv *pconn)
-{
- DEBUG(10, ("ibw_conn_priv_destruct(%p, cmid: %p)\n",
- pconn, pconn->cm_id));
-
- /* pconn->wr_index is freed by talloc */
- /* pconn->wr_index[i] are freed by talloc */
-
- /* destroy verbs */
- if (pconn->cm_id!=NULL && pconn->cm_id->qp!=NULL) {
- rdma_destroy_qp(pconn->cm_id);
- pconn->cm_id->qp = NULL;
- }
-
- if (pconn->cq!=NULL) {
- ibv_destroy_cq(pconn->cq);
- pconn->cq = NULL;
- }
-
- if (pconn->verbs_channel!=NULL) {
- ibv_destroy_comp_channel(pconn->verbs_channel);
- pconn->verbs_channel = NULL;
- }
-
- /* must be freed here because its order is important */
- if (pconn->verbs_channel_event) {
- talloc_free(pconn->verbs_channel_event);
- pconn->verbs_channel_event = NULL;
- }
-
- /* free memory regions */
- ibw_free_mr(&pconn->buf_send, &pconn->mr_send);
- ibw_free_mr(&pconn->buf_recv, &pconn->mr_recv);
-
- if (pconn->pd) {
- ibv_dealloc_pd(pconn->pd);
- pconn->pd = NULL;
- DEBUG(10, ("pconn=%p pd deallocated\n", pconn));
- }
-
- if (pconn->cm_id) {
- rdma_destroy_id(pconn->cm_id);
- pconn->cm_id = NULL;
- DEBUG(10, ("pconn=%p cm_id destroyed\n", pconn));
- }
-
- return 0;
-}
-
-static int ibw_wr_destruct(struct ibw_wr *wr)
-{
- if (wr->buf_large!=NULL)
- ibw_free_mr(&wr->buf_large, &wr->mr_large);
- return 0;
-}
-
-static int ibw_conn_destruct(struct ibw_conn *conn)
-{
- DEBUG(10, ("ibw_conn_destruct(%p)\n", conn));
-
- /* important here: ctx is a talloc _parent_ */
- DLIST_REMOVE(conn->ctx->conn_list, conn);
- return 0;
-}
-
-struct ibw_conn *ibw_conn_new(struct ibw_ctx *ctx, TALLOC_CTX *mem_ctx)
-{
- struct ibw_conn *conn;
- struct ibw_conn_priv *pconn;
-
- assert(ctx!=NULL);
-
- conn = talloc_zero(mem_ctx, struct ibw_conn);
- assert(conn!=NULL);
- talloc_set_destructor(conn, ibw_conn_destruct);
-
- pconn = talloc_zero(conn, struct ibw_conn_priv);
- assert(pconn!=NULL);
- talloc_set_destructor(pconn, ibw_conn_priv_destruct);
-
- conn->ctx = ctx;
- conn->internal = (void *)pconn;
-
- DLIST_ADD(ctx->conn_list, conn);
-
- return conn;
-}
-
-static int ibw_setup_cq_qp(struct ibw_conn *conn)
-{
- struct ibw_ctx_priv *pctx = talloc_get_type(conn->ctx->internal, struct ibw_ctx_priv);
- struct ibw_conn_priv *pconn = talloc_get_type(conn->internal, struct ibw_conn_priv);
- struct ibv_qp_init_attr init_attr;
- struct ibv_qp_attr attr;
- int rc;
-
- DEBUG(10, ("ibw_setup_cq_qp(cmid: %p)\n", pconn->cm_id));
-
- /* init verbs */
- pconn->verbs_channel = ibv_create_comp_channel(pconn->cm_id->verbs);
- if (!pconn->verbs_channel) {
- sprintf(ibw_lasterr, "ibv_create_comp_channel failed %d\n", errno);
- return -1;
- }
- DEBUG(10, ("created channel %p\n", pconn->verbs_channel));
-
- pconn->verbs_channel_event = event_add_fd(pctx->ectx, NULL, /* not pconn or conn */
- pconn->verbs_channel->fd, EVENT_FD_READ, ibw_event_handler_verbs, conn);
-
- pconn->pd = ibv_alloc_pd(pconn->cm_id->verbs);
- if (!pconn->pd) {
- sprintf(ibw_lasterr, "ibv_alloc_pd failed %d\n", errno);
- return -1;
- }
- DEBUG(10, ("created pd %p\n", pconn->pd));
-
- /* init mr */
- if (ibw_init_memory(conn))
- return -1;
-
- /* init cq */
- pconn->cq = ibv_create_cq(pconn->cm_id->verbs,
- pctx->opts.max_recv_wr + pctx->opts.max_send_wr,
- conn, pconn->verbs_channel, 0);
- if (pconn->cq==NULL) {
- sprintf(ibw_lasterr, "ibv_create_cq failed\n");
- return -1;
- }
-
- rc = ibv_req_notify_cq(pconn->cq, 0);
- if (rc) {
- sprintf(ibw_lasterr, "ibv_req_notify_cq failed with %d\n", rc);
- return rc;
- }
-
- /* init qp */
- memset(&init_attr, 0, sizeof(init_attr));
- init_attr.cap.max_send_wr = pctx->opts.max_send_wr;
- init_attr.cap.max_recv_wr = pctx->opts.max_recv_wr;
- init_attr.cap.max_recv_sge = 1;
- init_attr.cap.max_send_sge = 1;
- init_attr.qp_type = IBV_QPT_RC;
- init_attr.send_cq = pconn->cq;
- init_attr.recv_cq = pconn->cq;
-
- rc = rdma_create_qp(pconn->cm_id, pconn->pd, &init_attr);
- if (rc) {
- sprintf(ibw_lasterr, "rdma_create_qp failed with %d\n", rc);
- return rc;
- }
- /* elase result is in pconn->cm_id->qp */
-
- rc = ibv_query_qp(pconn->cm_id->qp, &attr, IBV_QP_PATH_MTU, &init_attr);
- if (rc) {
- sprintf(ibw_lasterr, "ibv_query_qp failed with %d\n", rc);
- return rc;
- }
-
- return ibw_fill_cq(conn);
-}
-
-static int ibw_refill_cq_recv(struct ibw_conn *conn)
-{
- struct ibw_ctx_priv *pctx = talloc_get_type(conn->ctx->internal, struct ibw_ctx_priv);
- struct ibw_conn_priv *pconn = talloc_get_type(conn->internal, struct ibw_conn_priv);
- int rc;
- struct ibv_sge list = {
- .addr = (uintptr_t) NULL, /* filled below */
- .length = pctx->opts.recv_bufsize,
- .lkey = pconn->mr_recv->lkey /* always the same */
- };
- struct ibv_recv_wr wr = {
- .wr_id = 0, /* filled below */
- .sg_list = &list,
- .num_sge = 1,
- };
- struct ibv_recv_wr *bad_wr;
-
- DEBUG(10, ("ibw_refill_cq_recv(cmid: %p)\n", pconn->cm_id));
-
- list.addr = (uintptr_t) pconn->buf_recv + pctx->opts.recv_bufsize * pconn->recv_index;
- wr.wr_id = pconn->recv_index;
- pconn->recv_index = (pconn->recv_index + 1) % pctx->opts.max_recv_wr;
-
- rc = ibv_post_recv(pconn->cm_id->qp, &wr, &bad_wr);
- if (rc) {
- sprintf(ibw_lasterr, "refill/ibv_post_recv failed with %d\n", rc);
- DEBUG(0, (ibw_lasterr));
- return -2;
- }
-
- return 0;
-}
-
-static int ibw_fill_cq(struct ibw_conn *conn)
-{
- struct ibw_ctx_priv *pctx = talloc_get_type(conn->ctx->internal, struct ibw_ctx_priv);
- struct ibw_conn_priv *pconn = talloc_get_type(conn->internal, struct ibw_conn_priv);
- int i, rc;
- struct ibv_sge list = {
- .addr = (uintptr_t) NULL, /* filled below */
- .length = pctx->opts.recv_bufsize,
- .lkey = pconn->mr_recv->lkey /* always the same */
- };
- struct ibv_recv_wr wr = {
- .wr_id = 0, /* filled below */
- .sg_list = &list,
- .num_sge = 1,
- };
- struct ibv_recv_wr *bad_wr;
-
- DEBUG(10, ("ibw_fill_cq(cmid: %p)\n", pconn->cm_id));
-
- for(i = pctx->opts.max_recv_wr; i!=0; i--) {
- list.addr = (uintptr_t) pconn->buf_recv + pctx->opts.recv_bufsize * pconn->recv_index;
- wr.wr_id = pconn->recv_index;
- pconn->recv_index = (pconn->recv_index + 1) % pctx->opts.max_recv_wr;
-
- rc = ibv_post_recv(pconn->cm_id->qp, &wr, &bad_wr);
- if (rc) {
- sprintf(ibw_lasterr, "fill/ibv_post_recv failed with %d\n", rc);
- DEBUG(0, (ibw_lasterr));
- return -2;
- }
- }
-
- return 0;
-}
-
-static int ibw_manage_connect(struct ibw_conn *conn)
-{
- struct rdma_conn_param conn_param;
- struct ibw_conn_priv *pconn = talloc_get_type(conn->internal, struct ibw_conn_priv);
- int rc;
-
- DEBUG(10, ("ibw_manage_connect(cmid: %p)\n", pconn->cm_id));
-
- if (ibw_setup_cq_qp(conn))
- return -1;
-
- /* cm connect */
- memset(&conn_param, 0, sizeof conn_param);
- conn_param.responder_resources = 1;
- conn_param.initiator_depth = 1;
- conn_param.retry_count = 10;
-
- rc = rdma_connect(pconn->cm_id, &conn_param);
- if (rc)
- sprintf(ibw_lasterr, "rdma_connect error %d\n", rc);
-
- return rc;
-}
-
-static void ibw_event_handler_cm(struct event_context *ev,
- struct fd_event *fde, uint16_t flags, void *private_data)
-{
- int rc;
- struct ibw_ctx *ctx = talloc_get_type(private_data, struct ibw_ctx);
- struct ibw_ctx_priv *pctx = talloc_get_type(ctx->internal, struct ibw_ctx_priv);
- struct ibw_conn *conn = NULL;
- struct ibw_conn_priv *pconn = NULL;
- struct rdma_cm_id *cma_id = NULL;
- struct rdma_cm_event *event = NULL;
-
- assert(ctx!=NULL);
-
- rc = rdma_get_cm_event(pctx->cm_channel, &event);
- if (rc) {
- ctx->state = IBWS_ERROR;
- event = NULL;
- sprintf(ibw_lasterr, "rdma_get_cm_event error %d\n", rc);
- goto error;
- }
- cma_id = event->id;
-
- DEBUG(10, ("cma_event type %d cma_id %p (%s)\n", event->event, cma_id,
- (cma_id == pctx->cm_id) ? "parent" : "child"));
-
- switch (event->event) {
- case RDMA_CM_EVENT_ADDR_RESOLVED:
- DEBUG(11, ("RDMA_CM_EVENT_ADDR_RESOLVED\n"));
- /* continuing from ibw_connect ... */
- rc = rdma_resolve_route(cma_id, 2000);
- if (rc) {
- sprintf(ibw_lasterr, "rdma_resolve_route error %d\n", rc);
- goto error;
- }
- /* continued at RDMA_CM_EVENT_ROUTE_RESOLVED */
- break;
-
- case RDMA_CM_EVENT_ROUTE_RESOLVED:
- DEBUG(11, ("RDMA_CM_EVENT_ROUTE_RESOLVED\n"));
- /* after RDMA_CM_EVENT_ADDR_RESOLVED: */
- assert(cma_id->context!=NULL);
- conn = talloc_get_type(cma_id->context, struct ibw_conn);
-
- rc = ibw_manage_connect(conn);
- if (rc)
- goto error;
-
- break;
-
- case RDMA_CM_EVENT_CONNECT_REQUEST:
- DEBUG(11, ("RDMA_CM_EVENT_CONNECT_REQUEST\n"));
- ctx->state = IBWS_CONNECT_REQUEST;
- conn = ibw_conn_new(ctx, ctx);
- pconn = talloc_get_type(conn->internal, struct ibw_conn_priv);
- pconn->cm_id = cma_id; /* !!! event will be freed but id not */
- cma_id->context = (void *)conn;
- DEBUG(10, ("pconn->cm_id %p\n", pconn->cm_id));
-
- if (ibw_setup_cq_qp(conn))
- goto error;
-
- conn->state = IBWC_INIT;
- pctx->connstate_func(ctx, conn);
-
- /* continued at ibw_accept when invoked by the func above */
- if (!pconn->is_accepted) {
- rc = rdma_reject(cma_id, NULL, 0);
- if (rc)
- DEBUG(0, ("rdma_reject failed with rc=%d\n", rc));
- talloc_free(conn);
- DEBUG(10, ("pconn->cm_id %p wasn't accepted\n", pconn->cm_id));
- }
-
- /* TODO: clarify whether if it's needed by upper layer: */
- ctx->state = IBWS_READY;
- pctx->connstate_func(ctx, NULL);
-
- /* NOTE: more requests can arrive until RDMA_CM_EVENT_ESTABLISHED ! */
- break;
-
- case RDMA_CM_EVENT_ESTABLISHED:
- /* expected after ibw_accept and ibw_connect[not directly] */
- DEBUG(1, ("ESTABLISHED (conn: %p)\n", cma_id->context));
- conn = talloc_get_type(cma_id->context, struct ibw_conn);
- assert(conn!=NULL); /* important assumption */
-
- DEBUG(10, ("ibw_setup_cq_qp succeeded (cmid=%p)\n", cma_id));
-
- /* client conn is up */
- conn->state = IBWC_CONNECTED;
-
- /* both ctx and conn have changed */
- pctx->connstate_func(ctx, conn);
- break;
-
- case RDMA_CM_EVENT_ADDR_ERROR:
- sprintf(ibw_lasterr, "RDMA_CM_EVENT_ADDR_ERROR, error %d\n", event->status);
- case RDMA_CM_EVENT_ROUTE_ERROR:
- sprintf(ibw_lasterr, "RDMA_CM_EVENT_ROUTE_ERROR, error %d\n", event->status);
- case RDMA_CM_EVENT_CONNECT_ERROR:
- sprintf(ibw_lasterr, "RDMA_CM_EVENT_CONNECT_ERROR, error %d\n", event->status);
- case RDMA_CM_EVENT_UNREACHABLE:
- sprintf(ibw_lasterr, "RDMA_CM_EVENT_UNREACHABLE, error %d\n", event->status);
- goto error;
- case RDMA_CM_EVENT_REJECTED:
- sprintf(ibw_lasterr, "RDMA_CM_EVENT_REJECTED, error %d\n", event->status);
- DEBUG(1, ("cm event handler: %s", ibw_lasterr));
- conn = talloc_get_type(cma_id->context, struct ibw_conn);
- if (conn) {
- /* must be done BEFORE connstate */
- if ((rc=rdma_ack_cm_event(event)))
- DEBUG(0, ("reject/rdma_ack_cm_event failed with %d\n", rc));
- event = NULL; /* not to touch cma_id or conn */
- conn->state = IBWC_ERROR;
- /* it should free the conn */
- pctx->connstate_func(NULL, conn);
- }
- break; /* this is not strictly an error */
-
- case RDMA_CM_EVENT_DISCONNECTED:
- DEBUG(11, ("RDMA_CM_EVENT_DISCONNECTED\n"));
- if ((rc=rdma_ack_cm_event(event)))
- DEBUG(0, ("disc/rdma_ack_cm_event failed with %d\n", rc));
- event = NULL; /* don't ack more */
-
- if (cma_id!=pctx->cm_id) {
- DEBUG(0, ("client DISCONNECT event cm_id=%p\n", cma_id));
- conn = talloc_get_type(cma_id->context, struct ibw_conn);
- conn->state = IBWC_DISCONNECTED;
- pctx->connstate_func(NULL, conn);
- }
- break;
-
- case RDMA_CM_EVENT_DEVICE_REMOVAL:
- sprintf(ibw_lasterr, "cma detected device removal!\n");
- goto error;
-
- default:
- sprintf(ibw_lasterr, "unknown event %d\n", event->event);
- goto error;
- }
-
- if (event!=NULL && (rc=rdma_ack_cm_event(event))) {
- sprintf(ibw_lasterr, "rdma_ack_cm_event failed with %d\n", rc);
- goto error;
- }
-
- return;
-error:
- DEBUG(0, ("cm event handler: %s", ibw_lasterr));
-
- if (event!=NULL) {
- if (cma_id!=NULL && cma_id!=pctx->cm_id) {
- conn = talloc_get_type(cma_id->context, struct ibw_conn);
- if (conn) {
- conn->state = IBWC_ERROR;
- pctx->connstate_func(NULL, conn);
- }
- } else {
- ctx->state = IBWS_ERROR;
- pctx->connstate_func(ctx, NULL);
- }
-
- if ((rc=rdma_ack_cm_event(event))!=0) {
- DEBUG(0, ("rdma_ack_cm_event failed with %d\n", rc));
- }
- }
-
- return;
-}
-
-static void ibw_event_handler_verbs(struct event_context *ev,
- struct fd_event *fde, uint16_t flags, void *private_data)
-{
- struct ibw_conn *conn = talloc_get_type(private_data, struct ibw_conn);
- struct ibw_conn_priv *pconn = talloc_get_type(conn->internal, struct ibw_conn_priv);
- struct ibw_ctx_priv *pctx = talloc_get_type(conn->ctx->internal, struct ibw_ctx_priv);
-
- struct ibv_wc wc;
- int rc;
- struct ibv_cq *ev_cq;
- void *ev_ctx;
-
- DEBUG(10, ("ibw_event_handler_verbs(%u)\n", (uint32_t)flags));
-
- /* TODO: check whether if it's good to have more channels here... */
- rc = ibv_get_cq_event(pconn->verbs_channel, &ev_cq, &ev_ctx);
- if (rc) {
- sprintf(ibw_lasterr, "Failed to get cq_event with %d\n", rc);
- goto error;
- }
- if (ev_cq != pconn->cq) {
- sprintf(ibw_lasterr, "ev_cq(%p) != pconn->cq(%p)\n", ev_cq, pconn->cq);
- goto error;
- }
- rc = ibv_req_notify_cq(pconn->cq, 0);
- if (rc) {
- sprintf(ibw_lasterr, "Couldn't request CQ notification (%d)\n", rc);
- goto error;
- }
-
- while((rc=ibv_poll_cq(pconn->cq, 1, &wc))==1) {
- if (wc.status) {
- sprintf(ibw_lasterr, "cq completion failed status=%d, opcode=%d, rc=%d\n",
- wc.status, wc.opcode, rc);
- goto error;
- }
-
- switch(wc.opcode) {
- case IBV_WC_SEND:
- DEBUG(10, ("send completion\n"));
- if (ibw_wc_send(conn, &wc))
- goto error;
- break;
-
- case IBV_WC_RDMA_WRITE:
- DEBUG(10, ("rdma write completion\n"));
- break;
-
- case IBV_WC_RDMA_READ:
- DEBUG(10, ("rdma read completion\n"));
- break;
-
- case IBV_WC_RECV:
- DEBUG(10, ("recv completion\n"));
- if (ibw_wc_recv(conn, &wc))
- goto error;
- break;
-
- default:
- sprintf(ibw_lasterr, "unknown completion %d\n", wc.opcode);
- goto error;
- }
- }
- if (rc!=0) {
- sprintf(ibw_lasterr, "ibv_poll_cq error %d\n", rc);
- goto error;
- }
-
- ibv_ack_cq_events(pconn->cq, 1);
-
- return;
-error:
- ibv_ack_cq_events(pconn->cq, 1);
-
- DEBUG(0, (ibw_lasterr));
-
- if (conn->state!=IBWC_ERROR) {
- conn->state = IBWC_ERROR;
- pctx->connstate_func(NULL, conn);
- }
-}
-
-static int ibw_process_queue(struct ibw_conn *conn)
-{
- struct ibw_conn_priv *pconn = talloc_get_type(conn->internal, struct ibw_conn_priv);
- struct ibw_ctx_priv *pctx;
- struct ibw_wr *p;
- int rc;
- uint32_t msg_size;
-
- if (pconn->queue==NULL)
- return 0; /* NOP */
-
- p = pconn->queue;
-
- /* we must have at least 1 fragment to send */
- assert(p->queued_ref_cnt>0);
- p->queued_ref_cnt--;
-
- pctx = talloc_get_type(conn->ctx->internal, struct ibw_ctx_priv);
- msg_size = (p->queued_ref_cnt) ? pctx->opts.recv_bufsize : p->queued_rlen;
-
- assert(p->queued_msg!=NULL);
- assert(msg_size!=0);
-
- DEBUG(10, ("ibw_process_queue refcnt=%d msgsize=%u\n",
- p->queued_ref_cnt, msg_size));
-
- rc = ibw_send_packet(conn, p->queued_msg, p, msg_size);
-
- /* was this the last fragment? */
- if (p->queued_ref_cnt) {
- p->queued_msg += pctx->opts.recv_bufsize;
- } else {
- DLIST_REMOVE2(pconn->queue, p, qprev, qnext);
- p->queued_msg = NULL;
- }
-
- return rc;
-}
-
-static int ibw_wc_send(struct ibw_conn *conn, struct ibv_wc *wc)
-{
- struct ibw_ctx_priv *pctx = talloc_get_type(conn->ctx->internal, struct ibw_ctx_priv);
- struct ibw_conn_priv *pconn = talloc_get_type(conn->internal, struct ibw_conn_priv);
- struct ibw_wr *p;
- int send_index;
-
- DEBUG(10, ("ibw_wc_send(cmid: %p, wr_id: %u, bl: %u)\n",
- pconn->cm_id, (uint32_t)wc->wr_id, (uint32_t)wc->byte_len));
-
- assert(pconn->cm_id->qp->qp_num==wc->qp_num);
- assert(wc->wr_id >= pctx->opts.max_recv_wr);
- send_index = wc->wr_id - pctx->opts.max_recv_wr;
- pconn->wr_sent--;
-
- if (send_index < pctx->opts.max_send_wr) {
- DEBUG(10, ("ibw_wc_send#1 %u\n", (int)wc->wr_id));
- p = pconn->wr_index[send_index];
- if (p->buf_large!=NULL) {
- if (p->ref_cnt) {
- /* awaiting more of it... */
- p->ref_cnt--;
- } else {
- ibw_free_mr(&p->buf_large, &p->mr_large);
- DLIST_REMOVE(pconn->wr_list_used, p);
- DLIST_ADD(pconn->wr_list_avail, p);
- }
- } else { /* nasty - but necessary */
- DLIST_REMOVE(pconn->wr_list_used, p);
- DLIST_ADD(pconn->wr_list_avail, p);
- }
- } else { /* "extra" request - not optimized */
- DEBUG(10, ("ibw_wc_send#2 %u\n", (int)wc->wr_id));
- for(p=pconn->extra_sent; p!=NULL; p=p->next)
- if ((p->wr_id + pctx->opts.max_recv_wr)==(int)wc->wr_id)
- break;
- if (p==NULL) {
- sprintf(ibw_lasterr, "failed to find wr_id %d\n", (int)wc->wr_id);
- return -1;
- }
- if (p->ref_cnt) {
- p->ref_cnt--;
- } else {
- ibw_free_mr(&p->buf_large, &p->mr_large);
- DLIST_REMOVE(pconn->extra_sent, p);
- DLIST_ADD(pconn->extra_avail, p);
- }
- }
-
- return ibw_process_queue(conn);
-}
-
-static int ibw_append_to_part(struct ibw_conn_priv *pconn,
- struct ibw_part *part, char **pp, uint32_t add_len, int info)
-{
- DEBUG(10, ("ibw_append_to_part: cmid=%p, (bs=%u, len=%u, tr=%u), al=%u, i=%u\n",
- pconn->cm_id, part->bufsize, part->len, part->to_read, add_len, info));
-
- /* allocate more if necessary - it's an "evergrowing" buffer... */
- if (part->len + add_len > part->bufsize) {
- if (part->buf==NULL) {
- assert(part->len==0);
- part->buf = talloc_size(pconn, add_len);
- if (part->buf==NULL) {
- sprintf(ibw_lasterr, "recv talloc_size error (%u) #%d\n",
- add_len, info);
- return -1;
- }
- part->bufsize = add_len;
- } else {
- part->buf = talloc_realloc_size(pconn,
- part->buf, part->len + add_len);
- if (part->buf==NULL) {
- sprintf(ibw_lasterr, "recv realloc error (%u + %u) #%d\n",
- part->len, add_len, info);
- return -1;
- }
- }
- part->bufsize = part->len + add_len;
- }
-
- /* consume pp */
- memcpy(part->buf + part->len, *pp, add_len);
- *pp += add_len;
- part->len += add_len;
- part->to_read -= add_len;
-
- return 0;
-}
-
-static int ibw_wc_mem_threshold(struct ibw_conn_priv *pconn,
- struct ibw_part *part, uint32_t threshold)
-{
- DEBUG(10, ("ibw_wc_mem_threshold: cmid=%p, (bs=%u, len=%u, tr=%u), thr=%u\n",
- pconn->cm_id, part->bufsize, part->len, part->to_read, threshold));
-
- if (part->bufsize > threshold) {
- DEBUG(3, ("ibw_wc_mem_threshold: cmid=%p, %u > %u\n",
- pconn->cm_id, part->bufsize, threshold));
- talloc_free(part->buf);
- part->buf = talloc_size(pconn, threshold);
- if (part->buf==NULL) {
- sprintf(ibw_lasterr, "talloc_size failed\n");
- return -1;
- }
- part->bufsize = threshold;
- }
- return 0;
-}
-
-static int ibw_wc_recv(struct ibw_conn *conn, struct ibv_wc *wc)
-{
- struct ibw_ctx_priv *pctx = talloc_get_type(conn->ctx->internal, struct ibw_ctx_priv);
- struct ibw_conn_priv *pconn = talloc_get_type(conn->internal, struct ibw_conn_priv);
- struct ibw_part *part = &pconn->part;
- char *p;
- uint32_t remain = wc->byte_len;
-
- DEBUG(10, ("ibw_wc_recv: cmid=%p, wr_id: %u, bl: %u\n",
- pconn->cm_id, (uint32_t)wc->wr_id, remain));
-
- assert(pconn->cm_id->qp->qp_num==wc->qp_num);
- assert((int)wc->wr_id < pctx->opts.max_recv_wr);
- assert(wc->byte_len <= pctx->opts.recv_bufsize);
-
- p = pconn->buf_recv + ((int)wc->wr_id * pctx->opts.recv_bufsize);
-
- while(remain) {
- /* here always true: (part->len!=0 && part->to_read!=0) ||
- (part->len==0 && part->to_read==0) */
- if (part->len) { /* is there a partial msg to be continued? */
- int read_len = (part->to_read<=remain) ? part->to_read : remain;
- if (ibw_append_to_part(pconn, part, &p, read_len, 421))
- goto error;
- remain -= read_len;
-
- if (part->len<=sizeof(uint32_t) && part->to_read==0) {
- assert(part->len==sizeof(uint32_t));
- /* set it again now... */
- part->to_read = *((uint32_t *)(part->buf)); /* TODO: ntohl */
- if (part->to_read<sizeof(uint32_t)) {
- sprintf(ibw_lasterr, "got msglen=%u #2\n", part->to_read);
- goto error;
- }
- part->to_read -= sizeof(uint32_t); /* it's already read */
- }
-
- if (part->to_read==0) {
- pctx->receive_func(conn, part->buf, part->len);
- part->len = 0; /* tells not having partial data (any more) */
- if (ibw_wc_mem_threshold(pconn, part, pctx->opts.recv_threshold))
- goto error;
- }
- } else {
- if (remain>=sizeof(uint32_t)) {
- uint32_t msglen = *(uint32_t *)p; /* TODO: ntohl */
- if (msglen<sizeof(uint32_t)) {
- sprintf(ibw_lasterr, "got msglen=%u\n", msglen);
- goto error;
- }
-
- /* mostly awaited case: */
- if (msglen<=remain) {
- pctx->receive_func(conn, p, msglen);
- p += msglen;
- remain -= msglen;
- } else {
- part->to_read = msglen;
- /* part->len is already 0 */
- if (ibw_append_to_part(pconn, part, &p, remain, 422))
- goto error;
- remain = 0; /* to be continued ... */
- /* part->to_read > 0 here */
- }
- } else { /* edge case: */
- part->to_read = sizeof(uint32_t);
- /* part->len is already 0 */
- if (ibw_append_to_part(pconn, part, &p, remain, 423))
- goto error;
- remain = 0;
- /* part->to_read > 0 here */
- }
- }
- } /* <remain> is always decreased at least by 1 */
-
- if (ibw_refill_cq_recv(conn))
- goto error;
-
- return 0;
-
-error:
- DEBUG(0, ("ibw_wc_recv error: %s", ibw_lasterr));
- return -1;
-}
-
-static int ibw_process_init_attrs(struct ibw_initattr *attr, int nattr, struct ibw_opts *opts)
-{
- int i;
- const char *name, *value;
-
- DEBUG(10, ("ibw_process_init_attrs: nattr: %d\n", nattr));
-
- opts->max_send_wr = IBW_MAX_SEND_WR;
- opts->max_recv_wr = IBW_MAX_RECV_WR;
- opts->recv_bufsize = IBW_RECV_BUFSIZE;
- opts->recv_threshold = IBW_RECV_THRESHOLD;
-
- for(i=0; i<nattr; i++) {
- name = attr[i].name;
- value = attr[i].value;
-
- assert(name!=NULL && value!=NULL);
- if (strcmp(name, "max_send_wr")==0)
- opts->max_send_wr = atoi(value);
- else if (strcmp(name, "max_recv_wr")==0)
- opts->max_recv_wr = atoi(value);
- else if (strcmp(name, "recv_bufsize")==0)
- opts->recv_bufsize = atoi(value);
- else if (strcmp(name, "recv_threshold")==0)
- opts->recv_threshold = atoi(value);
- else {
- sprintf(ibw_lasterr, "ibw_init: unknown name %s\n", name);
- return -1;
- }
- }
- return 0;
-}
-
-struct ibw_ctx *ibw_init(struct ibw_initattr *attr, int nattr,
- void *ctx_userdata,
- ibw_connstate_fn_t ibw_connstate,
- ibw_receive_fn_t ibw_receive,
- struct event_context *ectx)
-{
- struct ibw_ctx *ctx = talloc_zero(NULL, struct ibw_ctx);
- struct ibw_ctx_priv *pctx;
- int rc;
-
- DEBUG(10, ("ibw_init(ctx_userdata: %p, ectx: %p)\n", ctx_userdata, ectx));
-
- /* initialize basic data structures */
- memset(ibw_lasterr, 0, IBW_LASTERR_BUFSIZE);
-
- assert(ctx!=NULL);
- ibw_lasterr[0] = '\0';
- talloc_set_destructor(ctx, ibw_ctx_destruct);
- ctx->ctx_userdata = ctx_userdata;
-
- pctx = talloc_zero(ctx, struct ibw_ctx_priv);
- talloc_set_destructor(pctx, ibw_ctx_priv_destruct);
- ctx->internal = (void *)pctx;
- assert(pctx!=NULL);
-
- pctx->connstate_func = ibw_connstate;
- pctx->receive_func = ibw_receive;
-
- pctx->ectx = ectx;
-
- /* process attributes */
- if (ibw_process_init_attrs(attr, nattr, &pctx->opts))
- goto cleanup;
-
- /* init cm */
- pctx->cm_channel = rdma_create_event_channel();
- if (!pctx->cm_channel) {
- sprintf(ibw_lasterr, "rdma_create_event_channel error %d\n", errno);
- goto cleanup;
- }
-
- pctx->cm_channel_event = event_add_fd(pctx->ectx, pctx,
- pctx->cm_channel->fd, EVENT_FD_READ, ibw_event_handler_cm, ctx);
-
-#if RDMA_USER_CM_MAX_ABI_VERSION >= 2
- rc = rdma_create_id(pctx->cm_channel, &pctx->cm_id, ctx, RDMA_PS_TCP);
-#else
- rc = rdma_create_id(pctx->cm_channel, &pctx->cm_id, ctx);
-#endif
- if (rc) {
- rc = errno;
- sprintf(ibw_lasterr, "rdma_create_id error %d\n", rc);
- goto cleanup;
- }
- DEBUG(10, ("created cm_id %p\n", pctx->cm_id));
-
- pctx->pagesize = sysconf(_SC_PAGESIZE);
-
- return ctx;
- /* don't put code here */
-cleanup:
- DEBUG(0, (ibw_lasterr));
-
- if (ctx)
- talloc_free(ctx);
-
- return NULL;
-}
-
-int ibw_stop(struct ibw_ctx *ctx)
-{
- struct ibw_ctx_priv *pctx = (struct ibw_ctx_priv *)ctx->internal;
- struct ibw_conn *p;
-
- DEBUG(10, ("ibw_stop\n"));
-
- for(p=ctx->conn_list; p!=NULL; p=p->next) {
- if (ctx->state==IBWC_ERROR || ctx->state==IBWC_CONNECTED) {
- if (ibw_disconnect(p))
- return -1;
- }
- }
-
- ctx->state = IBWS_STOPPED;
- pctx->connstate_func(ctx, NULL);
-
- return 0;
-}
-
-int ibw_bind(struct ibw_ctx *ctx, struct sockaddr_in *my_addr)
-{
- struct ibw_ctx_priv *pctx = (struct ibw_ctx_priv *)ctx->internal;
- int rc;
-
- DEBUG(10, ("ibw_bind: addr=%s, port=%u\n",
- inet_ntoa(my_addr->sin_addr), ntohs(my_addr->sin_port)));
- rc = rdma_bind_addr(pctx->cm_id, (struct sockaddr *) my_addr);
- if (rc) {
- sprintf(ibw_lasterr, "rdma_bind_addr error %d\n", rc);
- DEBUG(0, (ibw_lasterr));
- return rc;
- }
- DEBUG(10, ("rdma_bind_addr successful\n"));
-
- return 0;
-}
-
-int ibw_listen(struct ibw_ctx *ctx, int backlog)
-{
- struct ibw_ctx_priv *pctx = talloc_get_type(ctx->internal, struct ibw_ctx_priv);
- int rc;
-
- DEBUG(10, ("ibw_listen\n"));
- rc = rdma_listen(pctx->cm_id, backlog);
- if (rc) {
- sprintf(ibw_lasterr, "rdma_listen failed: %d\n", rc);
- DEBUG(0, (ibw_lasterr));
- return rc;
- }
-
- return 0;
-}
-
-int ibw_accept(struct ibw_ctx *ctx, struct ibw_conn *conn, void *conn_userdata)
-{
- struct ibw_conn_priv *pconn = talloc_get_type(conn->internal, struct ibw_conn_priv);
- struct rdma_conn_param conn_param;
- int rc;
-
- DEBUG(10, ("ibw_accept: cmid=%p\n", pconn->cm_id));
- conn->conn_userdata = conn_userdata;
-
- memset(&conn_param, 0, sizeof(struct rdma_conn_param));
- conn_param.responder_resources = 1;
- conn_param.initiator_depth = 1;
- rc = rdma_accept(pconn->cm_id, &conn_param);
- if (rc) {
- sprintf(ibw_lasterr, "rdma_accept failed %d\n", rc);
- DEBUG(0, (ibw_lasterr));
- return -1;;
- }
-
- pconn->is_accepted = 1;
-
- /* continued at RDMA_CM_EVENT_ESTABLISHED */
-
- return 0;
-}
-
-int ibw_connect(struct ibw_conn *conn, struct sockaddr_in *serv_addr, void *conn_userdata)
-{
- struct ibw_ctx_priv *pctx = talloc_get_type(conn->ctx->internal, struct ibw_ctx_priv);
- struct ibw_conn_priv *pconn = NULL;
- int rc;
-
- assert(conn!=NULL);
-
- conn->conn_userdata = conn_userdata;
- pconn = talloc_get_type(conn->internal, struct ibw_conn_priv);
- DEBUG(10, ("ibw_connect: addr=%s, port=%u\n", inet_ntoa(serv_addr->sin_addr),
- ntohs(serv_addr->sin_port)));
-
- /* clean previous - probably half - initialization */
- if (ibw_conn_priv_destruct(pconn)) {
- DEBUG(0, ("ibw_connect/ibw_pconn_destruct failed for cm_id=%p\n", pconn->cm_id));
- return -1;
- }
-
- /* init cm */
-#if RDMA_USER_CM_MAX_ABI_VERSION >= 2
- rc = rdma_create_id(pctx->cm_channel, &pconn->cm_id, conn, RDMA_PS_TCP);
-#else
- rc = rdma_create_id(pctx->cm_channel, &pconn->cm_id, conn);
-#endif
- if (rc) {
- rc = errno;
- sprintf(ibw_lasterr, "ibw_connect/rdma_create_id error %d\n", rc);
- talloc_free(conn);
- return -1;
- }
- DEBUG(10, ("ibw_connect: rdma_create_id succeeded, cm_id=%p\n", pconn->cm_id));
-
- rc = rdma_resolve_addr(pconn->cm_id, NULL, (struct sockaddr *) serv_addr, 2000);
- if (rc) {
- sprintf(ibw_lasterr, "rdma_resolve_addr error %d\n", rc);
- DEBUG(0, (ibw_lasterr));
- talloc_free(conn);
- return -1;
- }
-
- /* continued at RDMA_CM_EVENT_ADDR_RESOLVED */
-
- return 0;
-}
-
-int ibw_disconnect(struct ibw_conn *conn)
-{
- int rc;
- struct ibw_conn_priv *pconn = talloc_get_type(conn->internal, struct ibw_conn_priv);
-
- DEBUG(10, ("ibw_disconnect: cmid=%p\n", pconn->cm_id));
-
- assert(pconn!=NULL);
-
- switch(conn->state) {
- case IBWC_ERROR:
- ibw_conn_priv_destruct(pconn); /* do this here right now */
- break;
- case IBWC_CONNECTED:
- rc = rdma_disconnect(pconn->cm_id);
- if (rc) {
- sprintf(ibw_lasterr, "ibw_disconnect failed with %d\n", rc);
- DEBUG(0, (ibw_lasterr));
- return rc;
- }
- break;
- default:
- DEBUG(9, ("invalid state for disconnect: %d\n", conn->state));
- break;
- }
-
- return 0;
-}
-
-int ibw_alloc_send_buf(struct ibw_conn *conn, void **buf, void **key, uint32_t len)
-{
- struct ibw_ctx_priv *pctx = talloc_get_type(conn->ctx->internal, struct ibw_ctx_priv);
- struct ibw_conn_priv *pconn = talloc_get_type(conn->internal, struct ibw_conn_priv);
- struct ibw_wr *p = pconn->wr_list_avail;
-
- if (p!=NULL) {
- DEBUG(10, ("ibw_alloc_send_buf#1: cmid=%p, len=%d\n", pconn->cm_id, len));
-
- DLIST_REMOVE(pconn->wr_list_avail, p);
- DLIST_ADD(pconn->wr_list_used, p);
-
- if (len <= pctx->opts.recv_bufsize) {
- *buf = (void *)p->buf;
- } else {
- p->buf_large = ibw_alloc_mr(pctx, pconn, len, &p->mr_large);
- if (p->buf_large==NULL) {
- sprintf(ibw_lasterr, "ibw_alloc_mr#1 failed\n");
- goto error;
- }
- *buf = (void *)p->buf_large;
- }
- /* p->wr_id is already filled in ibw_init_memory */
- } else {
- DEBUG(10, ("ibw_alloc_send_buf#2: cmid=%p, len=%d\n", pconn->cm_id, len));
- /* not optimized */
- p = pconn->extra_avail;
- if (!p) {
- p = pconn->extra_avail = talloc_zero(pconn, struct ibw_wr);
- talloc_set_destructor(p, ibw_wr_destruct);
- if (p==NULL) {
- sprintf(ibw_lasterr, "talloc_zero failed (emax: %u)\n", pconn->extra_max);
- goto error;
- }
- p->wr_id = pctx->opts.max_send_wr + pconn->extra_max;
- pconn->extra_max++;
- switch(pconn->extra_max) {
- case 1: DEBUG(2, ("warning: queue performed\n")); break;
- case 10: DEBUG(0, ("warning: queue reached 10\n")); break;
- case 100: DEBUG(0, ("warning: queue reached 100\n")); break;
- case 1000: DEBUG(0, ("warning: queue reached 1000\n")); break;
- default: break;
- }
- }
-
- p->buf_large = ibw_alloc_mr(pctx, pconn, len, &p->mr_large);
- if (p->buf_large==NULL) {
- sprintf(ibw_lasterr, "ibw_alloc_mr#2 failed\n");
- goto error;
- }
- *buf = (void *)p->buf_large;
-
- DLIST_REMOVE(pconn->extra_avail, p);
- /* we don't have prepared index for this, so that
- * we will have to find this by wr_id later on */
- DLIST_ADD(pconn->extra_sent, p);
- }
-
- *key = (void *)p;
-
- return 0;
-error:
- DEBUG(0, ("ibw_alloc_send_buf error: %s", ibw_lasterr));
- return -1;
-}
-
-
-static int ibw_send_packet(struct ibw_conn *conn, void *buf, struct ibw_wr *p, uint32_t len)
-{
- struct ibw_ctx_priv *pctx = talloc_get_type(conn->ctx->internal, struct ibw_ctx_priv);
- struct ibw_conn_priv *pconn = talloc_get_type(conn->internal, struct ibw_conn_priv);
- int rc;
-
- /* can we send it right now? */
- if (pconn->wr_sent<pctx->opts.max_send_wr) {
- struct ibv_send_wr *bad_wr;
- struct ibv_sge list = {
- .addr = (uintptr_t)buf,
- .length = len,
- .lkey = pconn->mr_send->lkey
- };
- struct ibv_send_wr wr = {
- .wr_id = p->wr_id + pctx->opts.max_recv_wr,
- .sg_list = &list,
- .num_sge = 1,
- .opcode = IBV_WR_SEND,
- .send_flags = IBV_SEND_SIGNALED,
- };
-
- if (p->buf_large==NULL) {
- DEBUG(10, ("ibw_send#normal(cmid: %p, wrid: %u, n: %d)\n",
- pconn->cm_id, (uint32_t)wr.wr_id, len));
- } else {
- DEBUG(10, ("ibw_send#large(cmid: %p, wrid: %u, n: %d)\n",
- pconn->cm_id, (uint32_t)wr.wr_id, len));
- list.lkey = p->mr_large->lkey;
- }
-
- rc = ibv_post_send(pconn->cm_id->qp, &wr, &bad_wr);
- if (rc) {
- sprintf(ibw_lasterr, "ibv_post_send error %d (%d)\n",
- rc, pconn->wr_sent);
- goto error;
- }
-
- pconn->wr_sent++;
-
- return rc;
- } /* else put the request into our own queue: */
-
- DEBUG(10, ("ibw_send#queued(cmid: %p, len: %u)\n", pconn->cm_id, len));
-
- /* TODO: clarify how to continue when state==IBWC_STOPPED */
-
- /* to be sent by ibw_wc_send */
- /* regardless "normal" or [a part of] "large" packet */
- if (!p->queued_ref_cnt) {
- DLIST_ADD_END2(pconn->queue, p, struct ibw_wr *,
- qprev, qnext); /* TODO: optimize */
- p->queued_msg = buf;
- }
- p->queued_ref_cnt++;
- p->queued_rlen = len; /* last wins; see ibw_wc_send */
-
- return 0;
-error:
- DEBUG(0, (ibw_lasterr));
- return -1;
-}
-
-int ibw_send(struct ibw_conn *conn, void *buf, void *key, uint32_t len)
-{
- struct ibw_ctx_priv *pctx = talloc_get_type(conn->ctx->internal, struct ibw_ctx_priv);
- struct ibw_wr *p = talloc_get_type(key, struct ibw_wr);
- int rc;
-
- assert(len>=sizeof(uint32_t));
- assert((*((uint32_t *)buf)==len)); /* TODO: htonl */
-
- if (len > pctx->opts.recv_bufsize) {
- struct ibw_conn_priv *pconn = talloc_get_type(conn->internal, struct ibw_conn_priv);
- int rlen = len;
- char *packet = (char *)buf;
- uint32_t recv_bufsize = pctx->opts.recv_bufsize;
-
- DEBUG(10, ("ibw_send#frag(cmid: %p, buf: %p, len: %u)\n",
- pconn->cm_id, buf, len));
-
- /* single threaded => no race here: */
- assert(p->ref_cnt==0);
- while(rlen > recv_bufsize) {
- rc = ibw_send_packet(conn, packet, p, recv_bufsize);
- if (rc)
- return rc;
- packet += recv_bufsize;
- rlen -= recv_bufsize;
- p->ref_cnt++; /* not good to have it in ibw_send_packet */
- }
- if (rlen) {
- rc = ibw_send_packet(conn, packet, p, rlen);
- p->ref_cnt++; /* not good to have it in ibw_send_packet */
- }
- p->ref_cnt--; /* for the same handling */
- } else {
- assert(p->ref_cnt==0);
- assert(p->queued_ref_cnt==0);
-
- rc = ibw_send_packet(conn, buf, p, len);
- }
- return rc;
-}
-
-int ibw_cancel_send_buf(struct ibw_conn *conn, void *buf, void *key)
-{
- struct ibw_ctx_priv *pctx = talloc_get_type(conn->ctx->internal, struct ibw_ctx_priv);
- struct ibw_conn_priv *pconn = talloc_get_type(conn->internal, struct ibw_conn_priv);
- struct ibw_wr *p = talloc_get_type(key, struct ibw_wr);
-
- assert(p!=NULL);
- assert(buf!=NULL);
- assert(conn!=NULL);
-
- if (p->buf_large!=NULL)
- ibw_free_mr(&p->buf_large, &p->mr_large);
-
- /* parallel case */
- if (p->wr_id < pctx->opts.max_send_wr) {
- DEBUG(10, ("ibw_cancel_send_buf#1 %u", (int)p->wr_id));
- DLIST_REMOVE(pconn->wr_list_used, p);
- DLIST_ADD(pconn->wr_list_avail, p);
- } else { /* "extra" packet */
- DEBUG(10, ("ibw_cancel_send_buf#2 %u", (int)p->wr_id));
- DLIST_REMOVE(pconn->extra_sent, p);
- DLIST_ADD(pconn->extra_avail, p);
- }
-
- return 0;
-}
-
-const char *ibw_getLastError(void)
-{
- return ibw_lasterr;
-}
generated by cgit (git 2.34.1) at 2024-11-23 01:08:52 +0000