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@@ -0,0 +1,749 @@
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+/* QLogic qedr NIC Driver
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+ * Copyright (c) 2015-2017 QLogic Corporation
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+ *
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+ * This software is available to you under a choice of one of two
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+ * licenses. You may choose to be licensed under the terms of the GNU
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+ * General Public License (GPL) Version 2, available from the file
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+ * COPYING in the main directory of this source tree, or the
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+ * OpenIB.org BSD license below:
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+ *
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+ * Redistribution and use in source and binary forms, with or
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+ * without modification, are permitted provided that the following
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+ * conditions are met:
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+ *
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+ * - Redistributions of source code must retain the above
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+ * copyright notice, this list of conditions and the following
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+ * disclaimer.
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+ *
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+ * - Redistributions in binary form must reproduce the above
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+ * copyright notice, this list of conditions and the following
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+ * disclaimer in the documentation and /or other materials
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+ * provided with the distribution.
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+ *
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+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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+ * SOFTWARE.
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+ */
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+#include <net/ip.h>
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+#include <net/ipv6.h>
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+#include <net/udp.h>
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+#include <net/addrconf.h>
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+#include <net/route.h>
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+#include <net/ip6_route.h>
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+#include <net/flow.h>
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+#include "qedr.h"
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+#include "qedr_iw_cm.h"
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+
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+static inline void
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+qedr_fill_sockaddr4(const struct qed_iwarp_cm_info *cm_info,
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+ struct iw_cm_event *event)
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+{
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+ struct sockaddr_in *laddr = (struct sockaddr_in *)&event->local_addr;
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+ struct sockaddr_in *raddr = (struct sockaddr_in *)&event->remote_addr;
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+
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+ laddr->sin_family = AF_INET;
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+ raddr->sin_family = AF_INET;
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+
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+ laddr->sin_port = htons(cm_info->local_port);
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+ raddr->sin_port = htons(cm_info->remote_port);
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+
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+ laddr->sin_addr.s_addr = htonl(cm_info->local_ip[0]);
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+ raddr->sin_addr.s_addr = htonl(cm_info->remote_ip[0]);
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+}
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+
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+static inline void
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+qedr_fill_sockaddr6(const struct qed_iwarp_cm_info *cm_info,
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+ struct iw_cm_event *event)
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+{
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+ struct sockaddr_in6 *laddr6 = (struct sockaddr_in6 *)&event->local_addr;
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+ struct sockaddr_in6 *raddr6 =
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+ (struct sockaddr_in6 *)&event->remote_addr;
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+ int i;
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+
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+ laddr6->sin6_family = AF_INET6;
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+ raddr6->sin6_family = AF_INET6;
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+
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+ laddr6->sin6_port = htons(cm_info->local_port);
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+ raddr6->sin6_port = htons(cm_info->remote_port);
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+
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+ for (i = 0; i < 4; i++) {
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+ laddr6->sin6_addr.in6_u.u6_addr32[i] =
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+ htonl(cm_info->local_ip[i]);
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+ raddr6->sin6_addr.in6_u.u6_addr32[i] =
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+ htonl(cm_info->remote_ip[i]);
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+ }
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+}
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+
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+void
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+qedr_iw_mpa_request(void *context, struct qed_iwarp_cm_event_params *params)
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+{
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+ struct qedr_iw_listener *listener = (struct qedr_iw_listener *)context;
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+ struct qedr_dev *dev = listener->dev;
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+ struct iw_cm_event event;
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+ struct qedr_iw_ep *ep;
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+
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+ ep = kzalloc(sizeof(*ep), GFP_ATOMIC);
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+ if (!ep)
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+ return;
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+
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+ ep->dev = dev;
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+ ep->qed_context = params->ep_context;
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+
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+ memset(&event, 0, sizeof(event));
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+ event.event = IW_CM_EVENT_CONNECT_REQUEST;
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+ event.status = params->status;
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+
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+ if (!IS_ENABLED(CONFIG_IPV6) ||
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+ params->cm_info->ip_version == QED_TCP_IPV4)
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+ qedr_fill_sockaddr4(params->cm_info, &event);
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+ else
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+ qedr_fill_sockaddr6(params->cm_info, &event);
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+
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+ event.provider_data = (void *)ep;
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+ event.private_data = (void *)params->cm_info->private_data;
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+ event.private_data_len = (u8)params->cm_info->private_data_len;
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+ event.ord = params->cm_info->ord;
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+ event.ird = params->cm_info->ird;
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+
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+ listener->cm_id->event_handler(listener->cm_id, &event);
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+}
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+
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+void
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+qedr_iw_issue_event(void *context,
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+ struct qed_iwarp_cm_event_params *params,
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+ enum iw_cm_event_type event_type)
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+{
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+ struct qedr_iw_ep *ep = (struct qedr_iw_ep *)context;
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+ struct iw_cm_event event;
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+
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+ memset(&event, 0, sizeof(event));
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+ event.status = params->status;
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+ event.event = event_type;
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+
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+ if (params->cm_info) {
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+ event.ird = params->cm_info->ird;
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+ event.ord = params->cm_info->ord;
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+ event.private_data_len = params->cm_info->private_data_len;
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+ event.private_data = (void *)params->cm_info->private_data;
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+ }
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+
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+ if (ep->cm_id)
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+ ep->cm_id->event_handler(ep->cm_id, &event);
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+}
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+
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+void
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+qedr_iw_close_event(void *context, struct qed_iwarp_cm_event_params *params)
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+{
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+ struct qedr_iw_ep *ep = (struct qedr_iw_ep *)context;
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+
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+ if (ep->cm_id) {
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+ qedr_iw_issue_event(context, params, IW_CM_EVENT_CLOSE);
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+
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+ ep->cm_id->rem_ref(ep->cm_id);
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+ ep->cm_id = NULL;
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+ }
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+}
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+
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+void
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+qedr_iw_qp_event(void *context,
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+ struct qed_iwarp_cm_event_params *params,
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+ enum ib_event_type ib_event, char *str)
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+{
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+ struct qedr_iw_ep *ep = (struct qedr_iw_ep *)context;
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+ struct qedr_dev *dev = ep->dev;
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+ struct ib_qp *ibqp = &ep->qp->ibqp;
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+ struct ib_event event;
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+
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+ DP_NOTICE(dev, "QP error received: %s\n", str);
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+
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+ if (ibqp->event_handler) {
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+ event.event = ib_event;
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+ event.device = ibqp->device;
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+ event.element.qp = ibqp;
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+ ibqp->event_handler(&event, ibqp->qp_context);
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+ }
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+}
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+
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+struct qedr_discon_work {
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+ struct work_struct work;
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+ struct qedr_iw_ep *ep;
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+ enum qed_iwarp_event_type event;
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+ int status;
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+};
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+
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+static void qedr_iw_disconnect_worker(struct work_struct *work)
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+{
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+ struct qedr_discon_work *dwork =
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+ container_of(work, struct qedr_discon_work, work);
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+ struct qed_rdma_modify_qp_in_params qp_params = { 0 };
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+ struct qedr_iw_ep *ep = dwork->ep;
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+ struct qedr_dev *dev = ep->dev;
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+ struct qedr_qp *qp = ep->qp;
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+ struct iw_cm_event event;
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+
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+ if (qp->destroyed) {
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+ kfree(dwork);
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+ qedr_iw_qp_rem_ref(&qp->ibqp);
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+ return;
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+ }
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+
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+ memset(&event, 0, sizeof(event));
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+ event.status = dwork->status;
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+ event.event = IW_CM_EVENT_DISCONNECT;
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+
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+ /* Success means graceful disconnect was requested. modifying
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+ * to SQD is translated to graceful disconnect. O/w reset is sent
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+ */
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+ if (dwork->status)
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+ qp_params.new_state = QED_ROCE_QP_STATE_ERR;
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+ else
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+ qp_params.new_state = QED_ROCE_QP_STATE_SQD;
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+
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+ kfree(dwork);
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+
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+ if (ep->cm_id)
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+ ep->cm_id->event_handler(ep->cm_id, &event);
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+
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+ SET_FIELD(qp_params.modify_flags,
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+ QED_RDMA_MODIFY_QP_VALID_NEW_STATE, 1);
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+
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+ dev->ops->rdma_modify_qp(dev->rdma_ctx, qp->qed_qp, &qp_params);
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+
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+ qedr_iw_qp_rem_ref(&qp->ibqp);
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+}
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+
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+void
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+qedr_iw_disconnect_event(void *context,
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+ struct qed_iwarp_cm_event_params *params)
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+{
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+ struct qedr_discon_work *work;
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+ struct qedr_iw_ep *ep = (struct qedr_iw_ep *)context;
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+ struct qedr_dev *dev = ep->dev;
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+ struct qedr_qp *qp = ep->qp;
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+
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+ work = kzalloc(sizeof(*work), GFP_ATOMIC);
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+ if (!work)
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+ return;
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+
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+ qedr_iw_qp_add_ref(&qp->ibqp);
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+ work->ep = ep;
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+ work->event = params->event;
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+ work->status = params->status;
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+
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+ INIT_WORK(&work->work, qedr_iw_disconnect_worker);
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+ queue_work(dev->iwarp_wq, &work->work);
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+}
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+
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+static void
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+qedr_iw_passive_complete(void *context,
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+ struct qed_iwarp_cm_event_params *params)
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+{
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+ struct qedr_iw_ep *ep = (struct qedr_iw_ep *)context;
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+ struct qedr_dev *dev = ep->dev;
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+
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+ /* We will only reach the following state if MPA_REJECT was called on
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+ * passive. In this case there will be no associated QP.
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+ */
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+ if ((params->status == -ECONNREFUSED) && (!ep->qp)) {
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+ DP_DEBUG(dev, QEDR_MSG_IWARP,
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+ "PASSIVE connection refused releasing ep...\n");
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+ kfree(ep);
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+ return;
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+ }
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+
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+ qedr_iw_issue_event(context, params, IW_CM_EVENT_ESTABLISHED);
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+
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+ if (params->status < 0)
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+ qedr_iw_close_event(context, params);
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+}
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+
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+int
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+qedr_iw_mpa_reply(void *context, struct qed_iwarp_cm_event_params *params)
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+{
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+ struct qedr_iw_ep *ep = (struct qedr_iw_ep *)context;
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+ struct qedr_dev *dev = ep->dev;
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+ struct qed_iwarp_send_rtr_in rtr_in;
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+
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+ rtr_in.ep_context = params->ep_context;
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+
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+ return dev->ops->iwarp_send_rtr(dev->rdma_ctx, &rtr_in);
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+}
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+
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+int
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+qedr_iw_event_handler(void *context, struct qed_iwarp_cm_event_params *params)
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+{
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+ struct qedr_iw_ep *ep = (struct qedr_iw_ep *)context;
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+ struct qedr_dev *dev = ep->dev;
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+
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+ switch (params->event) {
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+ case QED_IWARP_EVENT_MPA_REQUEST:
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+ qedr_iw_mpa_request(context, params);
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+ break;
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+ case QED_IWARP_EVENT_ACTIVE_MPA_REPLY:
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+ qedr_iw_mpa_reply(context, params);
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+ break;
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+ case QED_IWARP_EVENT_PASSIVE_COMPLETE:
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+ ep->during_connect = 0;
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+ qedr_iw_passive_complete(context, params);
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+ break;
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+
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+ case QED_IWARP_EVENT_ACTIVE_COMPLETE:
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+ ep->during_connect = 0;
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+ qedr_iw_issue_event(context,
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+ params,
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+ IW_CM_EVENT_CONNECT_REPLY);
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+ if (params->status < 0) {
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+ struct qedr_iw_ep *ep = (struct qedr_iw_ep *)context;
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+
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+ ep->cm_id->rem_ref(ep->cm_id);
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+ ep->cm_id = NULL;
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+ }
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+ break;
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+ case QED_IWARP_EVENT_DISCONNECT:
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+ qedr_iw_disconnect_event(context, params);
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+ break;
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+ case QED_IWARP_EVENT_CLOSE:
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+ ep->during_connect = 0;
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+ qedr_iw_close_event(context, params);
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+ break;
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+ case QED_IWARP_EVENT_RQ_EMPTY:
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+ qedr_iw_qp_event(context, params, IB_EVENT_QP_FATAL,
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+ "QED_IWARP_EVENT_RQ_EMPTY");
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+ break;
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+ case QED_IWARP_EVENT_IRQ_FULL:
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+ qedr_iw_qp_event(context, params, IB_EVENT_QP_FATAL,
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+ "QED_IWARP_EVENT_IRQ_FULL");
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+ break;
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+ case QED_IWARP_EVENT_LLP_TIMEOUT:
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+ qedr_iw_qp_event(context, params, IB_EVENT_QP_FATAL,
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+ "QED_IWARP_EVENT_LLP_TIMEOUT");
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+ break;
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+ case QED_IWARP_EVENT_REMOTE_PROTECTION_ERROR:
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+ qedr_iw_qp_event(context, params, IB_EVENT_QP_ACCESS_ERR,
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+ "QED_IWARP_EVENT_REMOTE_PROTECTION_ERROR");
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+ break;
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+ case QED_IWARP_EVENT_CQ_OVERFLOW:
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+ qedr_iw_qp_event(context, params, IB_EVENT_QP_FATAL,
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+ "QED_IWARP_EVENT_CQ_OVERFLOW");
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+ break;
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+ case QED_IWARP_EVENT_QP_CATASTROPHIC:
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+ qedr_iw_qp_event(context, params, IB_EVENT_QP_FATAL,
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+ "QED_IWARP_EVENT_QP_CATASTROPHIC");
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+ break;
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+ case QED_IWARP_EVENT_LOCAL_ACCESS_ERROR:
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+ qedr_iw_qp_event(context, params, IB_EVENT_QP_ACCESS_ERR,
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+ "QED_IWARP_EVENT_LOCAL_ACCESS_ERROR");
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+ break;
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+ case QED_IWARP_EVENT_REMOTE_OPERATION_ERROR:
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+ qedr_iw_qp_event(context, params, IB_EVENT_QP_FATAL,
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+ "QED_IWARP_EVENT_REMOTE_OPERATION_ERROR");
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+ break;
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+ case QED_IWARP_EVENT_TERMINATE_RECEIVED:
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+ DP_NOTICE(dev, "Got terminate message\n");
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+ break;
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+ default:
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+ DP_NOTICE(dev, "Unknown event received %d\n", params->event);
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+ break;
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+ };
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+ return 0;
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+}
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+
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+static u16 qedr_iw_get_vlan_ipv4(struct qedr_dev *dev, u32 *addr)
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+{
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+ struct net_device *ndev;
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+ u16 vlan_id = 0;
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+
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+ ndev = ip_dev_find(&init_net, htonl(addr[0]));
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+
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+ if (ndev) {
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+ vlan_id = rdma_vlan_dev_vlan_id(ndev);
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+ dev_put(ndev);
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+ }
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+ if (vlan_id == 0xffff)
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+ vlan_id = 0;
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+ return vlan_id;
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+}
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+
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+static u16 qedr_iw_get_vlan_ipv6(u32 *addr)
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+{
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+ struct net_device *ndev = NULL;
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|
|
+ struct in6_addr laddr6;
|
|
|
+ u16 vlan_id = 0;
|
|
|
+ int i;
|
|
|
+
|
|
|
+ if (!IS_ENABLED(CONFIG_IPV6))
|
|
|
+ return vlan_id;
|
|
|
+
|
|
|
+ for (i = 0; i < 4; i++)
|
|
|
+ laddr6.in6_u.u6_addr32[i] = htonl(addr[i]);
|
|
|
+
|
|
|
+ rcu_read_lock();
|
|
|
+ for_each_netdev_rcu(&init_net, ndev) {
|
|
|
+ if (ipv6_chk_addr(&init_net, &laddr6, ndev, 1)) {
|
|
|
+ vlan_id = rdma_vlan_dev_vlan_id(ndev);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ rcu_read_unlock();
|
|
|
+ if (vlan_id == 0xffff)
|
|
|
+ vlan_id = 0;
|
|
|
+
|
|
|
+ return vlan_id;
|
|
|
+}
|
|
|
+
|
|
|
+static int
|
|
|
+qedr_addr4_resolve(struct qedr_dev *dev,
|
|
|
+ struct sockaddr_in *src_in,
|
|
|
+ struct sockaddr_in *dst_in, u8 *dst_mac)
|
|
|
+{
|
|
|
+ __be32 src_ip = src_in->sin_addr.s_addr;
|
|
|
+ __be32 dst_ip = dst_in->sin_addr.s_addr;
|
|
|
+ struct neighbour *neigh = NULL;
|
|
|
+ struct rtable *rt = NULL;
|
|
|
+ int rc = 0;
|
|
|
+
|
|
|
+ rt = ip_route_output(&init_net, dst_ip, src_ip, 0, 0);
|
|
|
+ if (IS_ERR(rt)) {
|
|
|
+ DP_ERR(dev, "ip_route_output returned error\n");
|
|
|
+ return -EINVAL;
|
|
|
+ }
|
|
|
+
|
|
|
+ neigh = dst_neigh_lookup(&rt->dst, &dst_ip);
|
|
|
+
|
|
|
+ if (neigh) {
|
|
|
+ rcu_read_lock();
|
|
|
+ if (neigh->nud_state & NUD_VALID) {
|
|
|
+ ether_addr_copy(dst_mac, neigh->ha);
|
|
|
+ DP_DEBUG(dev, QEDR_MSG_QP, "mac_addr=[%pM]\n", dst_mac);
|
|
|
+ } else {
|
|
|
+ neigh_event_send(neigh, NULL);
|
|
|
+ }
|
|
|
+ rcu_read_unlock();
|
|
|
+ neigh_release(neigh);
|
|
|
+ }
|
|
|
+
|
|
|
+ ip_rt_put(rt);
|
|
|
+
|
|
|
+ return rc;
|
|
|
+}
|
|
|
+
|
|
|
+static int
|
|
|
+qedr_addr6_resolve(struct qedr_dev *dev,
|
|
|
+ struct sockaddr_in6 *src_in,
|
|
|
+ struct sockaddr_in6 *dst_in, u8 *dst_mac)
|
|
|
+{
|
|
|
+ struct neighbour *neigh = NULL;
|
|
|
+ struct dst_entry *dst;
|
|
|
+ struct flowi6 fl6;
|
|
|
+ int rc = 0;
|
|
|
+
|
|
|
+ memset(&fl6, 0, sizeof(fl6));
|
|
|
+ fl6.daddr = dst_in->sin6_addr;
|
|
|
+ fl6.saddr = src_in->sin6_addr;
|
|
|
+
|
|
|
+ dst = ip6_route_output(&init_net, NULL, &fl6);
|
|
|
+
|
|
|
+ if ((!dst) || dst->error) {
|
|
|
+ if (dst) {
|
|
|
+ dst_release(dst);
|
|
|
+ DP_ERR(dev,
|
|
|
+ "ip6_route_output returned dst->error = %d\n",
|
|
|
+ dst->error);
|
|
|
+ }
|
|
|
+ return -EINVAL;
|
|
|
+ }
|
|
|
+ neigh = dst_neigh_lookup(dst, &dst_in);
|
|
|
+
|
|
|
+ if (neigh) {
|
|
|
+ rcu_read_lock();
|
|
|
+ if (neigh->nud_state & NUD_VALID) {
|
|
|
+ ether_addr_copy(dst_mac, neigh->ha);
|
|
|
+ DP_DEBUG(dev, QEDR_MSG_QP, "mac_addr=[%pM]\n", dst_mac);
|
|
|
+ } else {
|
|
|
+ neigh_event_send(neigh, NULL);
|
|
|
+ }
|
|
|
+ rcu_read_unlock();
|
|
|
+ neigh_release(neigh);
|
|
|
+ }
|
|
|
+
|
|
|
+ dst_release(dst);
|
|
|
+
|
|
|
+ return rc;
|
|
|
+}
|
|
|
+
|
|
|
+int qedr_iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
|
|
|
+{
|
|
|
+ struct qedr_dev *dev = get_qedr_dev(cm_id->device);
|
|
|
+ struct qed_iwarp_connect_out out_params;
|
|
|
+ struct qed_iwarp_connect_in in_params;
|
|
|
+ struct qed_iwarp_cm_info *cm_info;
|
|
|
+ struct sockaddr_in6 *laddr6;
|
|
|
+ struct sockaddr_in6 *raddr6;
|
|
|
+ struct sockaddr_in *laddr;
|
|
|
+ struct sockaddr_in *raddr;
|
|
|
+ struct qedr_iw_ep *ep;
|
|
|
+ struct qedr_qp *qp;
|
|
|
+ int rc = 0;
|
|
|
+ int i;
|
|
|
+
|
|
|
+ qp = idr_find(&dev->qpidr, conn_param->qpn);
|
|
|
+
|
|
|
+ laddr = (struct sockaddr_in *)&cm_id->local_addr;
|
|
|
+ raddr = (struct sockaddr_in *)&cm_id->remote_addr;
|
|
|
+ laddr6 = (struct sockaddr_in6 *)&cm_id->local_addr;
|
|
|
+ raddr6 = (struct sockaddr_in6 *)&cm_id->remote_addr;
|
|
|
+
|
|
|
+ DP_DEBUG(dev, QEDR_MSG_IWARP,
|
|
|
+ "Connect source address: %pISpc, remote address: %pISpc\n",
|
|
|
+ &cm_id->local_addr, &cm_id->remote_addr);
|
|
|
+
|
|
|
+ if (!laddr->sin_port || !raddr->sin_port)
|
|
|
+ return -EINVAL;
|
|
|
+
|
|
|
+ ep = kzalloc(sizeof(*ep), GFP_KERNEL);
|
|
|
+ if (!ep)
|
|
|
+ return -ENOMEM;
|
|
|
+
|
|
|
+ ep->dev = dev;
|
|
|
+ ep->qp = qp;
|
|
|
+ qp->ep = ep;
|
|
|
+ cm_id->add_ref(cm_id);
|
|
|
+ ep->cm_id = cm_id;
|
|
|
+
|
|
|
+ in_params.event_cb = qedr_iw_event_handler;
|
|
|
+ in_params.cb_context = ep;
|
|
|
+
|
|
|
+ cm_info = &in_params.cm_info;
|
|
|
+ memset(cm_info->local_ip, 0, sizeof(cm_info->local_ip));
|
|
|
+ memset(cm_info->remote_ip, 0, sizeof(cm_info->remote_ip));
|
|
|
+
|
|
|
+ if (!IS_ENABLED(CONFIG_IPV6) ||
|
|
|
+ cm_id->remote_addr.ss_family == AF_INET) {
|
|
|
+ cm_info->ip_version = QED_TCP_IPV4;
|
|
|
+
|
|
|
+ cm_info->remote_ip[0] = ntohl(raddr->sin_addr.s_addr);
|
|
|
+ cm_info->local_ip[0] = ntohl(laddr->sin_addr.s_addr);
|
|
|
+ cm_info->remote_port = ntohs(raddr->sin_port);
|
|
|
+ cm_info->local_port = ntohs(laddr->sin_port);
|
|
|
+ cm_info->vlan = qedr_iw_get_vlan_ipv4(dev, cm_info->local_ip);
|
|
|
+
|
|
|
+ rc = qedr_addr4_resolve(dev, laddr, raddr,
|
|
|
+ (u8 *)in_params.remote_mac_addr);
|
|
|
+
|
|
|
+ in_params.mss = dev->iwarp_max_mtu -
|
|
|
+ (sizeof(struct iphdr) + sizeof(struct tcphdr));
|
|
|
+
|
|
|
+ } else {
|
|
|
+ in_params.cm_info.ip_version = QED_TCP_IPV6;
|
|
|
+
|
|
|
+ for (i = 0; i < 4; i++) {
|
|
|
+ cm_info->remote_ip[i] =
|
|
|
+ ntohl(raddr6->sin6_addr.in6_u.u6_addr32[i]);
|
|
|
+ cm_info->local_ip[i] =
|
|
|
+ ntohl(laddr6->sin6_addr.in6_u.u6_addr32[i]);
|
|
|
+ }
|
|
|
+
|
|
|
+ cm_info->local_port = ntohs(laddr6->sin6_port);
|
|
|
+ cm_info->remote_port = ntohs(raddr6->sin6_port);
|
|
|
+
|
|
|
+ in_params.mss = dev->iwarp_max_mtu -
|
|
|
+ (sizeof(struct ipv6hdr) + sizeof(struct tcphdr));
|
|
|
+
|
|
|
+ cm_info->vlan = qedr_iw_get_vlan_ipv6(cm_info->local_ip);
|
|
|
+
|
|
|
+ rc = qedr_addr6_resolve(dev, laddr6, raddr6,
|
|
|
+ (u8 *)in_params.remote_mac_addr);
|
|
|
+ }
|
|
|
+ if (rc)
|
|
|
+ goto err;
|
|
|
+
|
|
|
+ DP_DEBUG(dev, QEDR_MSG_IWARP,
|
|
|
+ "ord = %d ird=%d private_data=%p private_data_len=%d rq_psn=%d\n",
|
|
|
+ conn_param->ord, conn_param->ird, conn_param->private_data,
|
|
|
+ conn_param->private_data_len, qp->rq_psn);
|
|
|
+
|
|
|
+ cm_info->ord = conn_param->ord;
|
|
|
+ cm_info->ird = conn_param->ird;
|
|
|
+ cm_info->private_data = conn_param->private_data;
|
|
|
+ cm_info->private_data_len = conn_param->private_data_len;
|
|
|
+ in_params.qp = qp->qed_qp;
|
|
|
+ memcpy(in_params.local_mac_addr, dev->ndev->dev_addr, ETH_ALEN);
|
|
|
+
|
|
|
+ ep->during_connect = 1;
|
|
|
+ rc = dev->ops->iwarp_connect(dev->rdma_ctx, &in_params, &out_params);
|
|
|
+ if (rc)
|
|
|
+ goto err;
|
|
|
+
|
|
|
+ return rc;
|
|
|
+
|
|
|
+err:
|
|
|
+ cm_id->rem_ref(cm_id);
|
|
|
+ kfree(ep);
|
|
|
+ return rc;
|
|
|
+}
|
|
|
+
|
|
|
+int qedr_iw_create_listen(struct iw_cm_id *cm_id, int backlog)
|
|
|
+{
|
|
|
+ struct qedr_dev *dev = get_qedr_dev(cm_id->device);
|
|
|
+ struct qedr_iw_listener *listener;
|
|
|
+ struct qed_iwarp_listen_in iparams;
|
|
|
+ struct qed_iwarp_listen_out oparams;
|
|
|
+ struct sockaddr_in *laddr;
|
|
|
+ struct sockaddr_in6 *laddr6;
|
|
|
+ int rc;
|
|
|
+ int i;
|
|
|
+
|
|
|
+ laddr = (struct sockaddr_in *)&cm_id->local_addr;
|
|
|
+ laddr6 = (struct sockaddr_in6 *)&cm_id->local_addr;
|
|
|
+
|
|
|
+ DP_DEBUG(dev, QEDR_MSG_IWARP,
|
|
|
+ "Create Listener address: %pISpc\n", &cm_id->local_addr);
|
|
|
+
|
|
|
+ listener = kzalloc(sizeof(*listener), GFP_KERNEL);
|
|
|
+ if (!listener)
|
|
|
+ return -ENOMEM;
|
|
|
+
|
|
|
+ listener->dev = dev;
|
|
|
+ cm_id->add_ref(cm_id);
|
|
|
+ listener->cm_id = cm_id;
|
|
|
+ listener->backlog = backlog;
|
|
|
+
|
|
|
+ iparams.cb_context = listener;
|
|
|
+ iparams.event_cb = qedr_iw_event_handler;
|
|
|
+ iparams.max_backlog = backlog;
|
|
|
+
|
|
|
+ if (!IS_ENABLED(CONFIG_IPV6) ||
|
|
|
+ cm_id->local_addr.ss_family == AF_INET) {
|
|
|
+ iparams.ip_version = QED_TCP_IPV4;
|
|
|
+ memset(iparams.ip_addr, 0, sizeof(iparams.ip_addr));
|
|
|
+
|
|
|
+ iparams.ip_addr[0] = ntohl(laddr->sin_addr.s_addr);
|
|
|
+ iparams.port = ntohs(laddr->sin_port);
|
|
|
+ iparams.vlan = qedr_iw_get_vlan_ipv4(dev, iparams.ip_addr);
|
|
|
+ } else {
|
|
|
+ iparams.ip_version = QED_TCP_IPV6;
|
|
|
+
|
|
|
+ for (i = 0; i < 4; i++) {
|
|
|
+ iparams.ip_addr[i] =
|
|
|
+ ntohl(laddr6->sin6_addr.in6_u.u6_addr32[i]);
|
|
|
+ }
|
|
|
+
|
|
|
+ iparams.port = ntohs(laddr6->sin6_port);
|
|
|
+
|
|
|
+ iparams.vlan = qedr_iw_get_vlan_ipv6(iparams.ip_addr);
|
|
|
+ }
|
|
|
+ rc = dev->ops->iwarp_create_listen(dev->rdma_ctx, &iparams, &oparams);
|
|
|
+ if (rc)
|
|
|
+ goto err;
|
|
|
+
|
|
|
+ listener->qed_handle = oparams.handle;
|
|
|
+ cm_id->provider_data = listener;
|
|
|
+ return rc;
|
|
|
+
|
|
|
+err:
|
|
|
+ cm_id->rem_ref(cm_id);
|
|
|
+ kfree(listener);
|
|
|
+ return rc;
|
|
|
+}
|
|
|
+
|
|
|
+int qedr_iw_destroy_listen(struct iw_cm_id *cm_id)
|
|
|
+{
|
|
|
+ struct qedr_iw_listener *listener = cm_id->provider_data;
|
|
|
+ struct qedr_dev *dev = get_qedr_dev(cm_id->device);
|
|
|
+ int rc = 0;
|
|
|
+
|
|
|
+ if (listener->qed_handle)
|
|
|
+ rc = dev->ops->iwarp_destroy_listen(dev->rdma_ctx,
|
|
|
+ listener->qed_handle);
|
|
|
+
|
|
|
+ cm_id->rem_ref(cm_id);
|
|
|
+ return rc;
|
|
|
+}
|
|
|
+
|
|
|
+int qedr_iw_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
|
|
|
+{
|
|
|
+ struct qedr_iw_ep *ep = (struct qedr_iw_ep *)cm_id->provider_data;
|
|
|
+ struct qedr_dev *dev = ep->dev;
|
|
|
+ struct qedr_qp *qp;
|
|
|
+ struct qed_iwarp_accept_in params;
|
|
|
+ int rc;
|
|
|
+
|
|
|
+ DP_DEBUG(dev, QEDR_MSG_IWARP, "Accept on qpid=%d\n", conn_param->qpn);
|
|
|
+
|
|
|
+ qp = idr_find(&dev->qpidr, conn_param->qpn);
|
|
|
+ if (!qp) {
|
|
|
+ DP_ERR(dev, "Invalid QP number %d\n", conn_param->qpn);
|
|
|
+ return -EINVAL;
|
|
|
+ }
|
|
|
+
|
|
|
+ ep->qp = qp;
|
|
|
+ qp->ep = ep;
|
|
|
+ cm_id->add_ref(cm_id);
|
|
|
+ ep->cm_id = cm_id;
|
|
|
+
|
|
|
+ params.ep_context = ep->qed_context;
|
|
|
+ params.cb_context = ep;
|
|
|
+ params.qp = ep->qp->qed_qp;
|
|
|
+ params.private_data = conn_param->private_data;
|
|
|
+ params.private_data_len = conn_param->private_data_len;
|
|
|
+ params.ird = conn_param->ird;
|
|
|
+ params.ord = conn_param->ord;
|
|
|
+
|
|
|
+ ep->during_connect = 1;
|
|
|
+ rc = dev->ops->iwarp_accept(dev->rdma_ctx, ¶ms);
|
|
|
+ if (rc)
|
|
|
+ goto err;
|
|
|
+
|
|
|
+ return rc;
|
|
|
+err:
|
|
|
+ ep->during_connect = 0;
|
|
|
+ cm_id->rem_ref(cm_id);
|
|
|
+ return rc;
|
|
|
+}
|
|
|
+
|
|
|
+int qedr_iw_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len)
|
|
|
+{
|
|
|
+ struct qedr_iw_ep *ep = (struct qedr_iw_ep *)cm_id->provider_data;
|
|
|
+ struct qedr_dev *dev = ep->dev;
|
|
|
+ struct qed_iwarp_reject_in params;
|
|
|
+
|
|
|
+ params.ep_context = ep->qed_context;
|
|
|
+ params.cb_context = ep;
|
|
|
+ params.private_data = pdata;
|
|
|
+ params.private_data_len = pdata_len;
|
|
|
+ ep->qp = NULL;
|
|
|
+
|
|
|
+ return dev->ops->iwarp_reject(dev->rdma_ctx, ¶ms);
|
|
|
+}
|
|
|
+
|
|
|
+void qedr_iw_qp_add_ref(struct ib_qp *ibqp)
|
|
|
+{
|
|
|
+ struct qedr_qp *qp = get_qedr_qp(ibqp);
|
|
|
+
|
|
|
+ atomic_inc(&qp->refcnt);
|
|
|
+}
|
|
|
+
|
|
|
+void qedr_iw_qp_rem_ref(struct ib_qp *ibqp)
|
|
|
+{
|
|
|
+ struct qedr_qp *qp = get_qedr_qp(ibqp);
|
|
|
+
|
|
|
+ if (atomic_dec_and_test(&qp->refcnt)) {
|
|
|
+ spin_lock_irq(&qp->dev->idr_lock);
|
|
|
+ idr_remove(&qp->dev->qpidr, qp->qp_id);
|
|
|
+ spin_unlock_irq(&qp->dev->idr_lock);
|
|
|
+ kfree(qp);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+struct ib_qp *qedr_iw_get_qp(struct ib_device *ibdev, int qpn)
|
|
|
+{
|
|
|
+ struct qedr_dev *dev = get_qedr_dev(ibdev);
|
|
|
+
|
|
|
+ return idr_find(&dev->qpidr, qpn);
|
|
|
+}
|
Doug Ledford