From a20652e175f2c5cea74c90503eeaeafabd08abed Mon Sep 17 00:00:00 2001 From: Leon Romanovsky Date: Tue, 26 May 2020 13:33:02 +0300 Subject: RDMA/cm: Send and receive ECE parameter over the wire ECE parameters are exchanged through REQ->REP/SIDR_REP messages, this patch adds the data to provide to other side of CMID communication channel. Link: https://lore.kernel.org/r/20200526103304.196371-5-leon@kernel.org Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- drivers/infiniband/core/cm.c | 39 ++++++++++++++++++++++++++++++++++----- drivers/infiniband/core/cma.c | 8 ++++++++ 2 files changed, 42 insertions(+), 5 deletions(-) (limited to 'drivers/infiniband') diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c index f38ff46abe8f..085c146fe400 100644 --- a/drivers/infiniband/core/cm.c +++ b/drivers/infiniband/core/cm.c @@ -66,6 +66,8 @@ static const char * const ibcm_rej_reason_strs[] = { [IB_CM_REJ_INVALID_CLASS_VERSION] = "invalid class version", [IB_CM_REJ_INVALID_FLOW_LABEL] = "invalid flow label", [IB_CM_REJ_INVALID_ALT_FLOW_LABEL] = "invalid alt flow label", + [IB_CM_REJ_VENDOR_OPTION_NOT_SUPPORTED] = + "vendor option is not supported", }; const char *__attribute_const__ ibcm_reject_msg(int reason) @@ -290,6 +292,8 @@ struct cm_id_private { struct list_head work_list; atomic_t work_count; + + struct rdma_ucm_ece ece; }; static void cm_work_handler(struct work_struct *work); @@ -1318,6 +1322,13 @@ static void cm_format_mad_hdr(struct ib_mad_hdr *hdr, hdr->tid = tid; } +static void cm_format_mad_ece_hdr(struct ib_mad_hdr *hdr, __be16 attr_id, + __be64 tid, u32 attr_mod) +{ + cm_format_mad_hdr(hdr, attr_id, tid); + hdr->attr_mod = cpu_to_be32(attr_mod); +} + static void cm_format_req(struct cm_req_msg *req_msg, struct cm_id_private *cm_id_priv, struct ib_cm_req_param *param) @@ -1330,8 +1341,8 @@ static void cm_format_req(struct cm_req_msg *req_msg, pri_ext = opa_is_extended_lid(pri_path->opa.dlid, pri_path->opa.slid); - cm_format_mad_hdr(&req_msg->hdr, CM_REQ_ATTR_ID, - cm_form_tid(cm_id_priv)); + cm_format_mad_ece_hdr(&req_msg->hdr, CM_REQ_ATTR_ID, + cm_form_tid(cm_id_priv), param->ece.attr_mod); IBA_SET(CM_REQ_LOCAL_COMM_ID, req_msg, be32_to_cpu(cm_id_priv->id.local_id)); @@ -1454,6 +1465,7 @@ static void cm_format_req(struct cm_req_msg *req_msg, cm_ack_timeout(cm_id_priv->av.port->cm_dev->ack_delay, alt_path->packet_life_time)); } + IBA_SET(CM_REQ_VENDOR_ID, req_msg, param->ece.vendor_id); if (param->private_data && param->private_data_len) IBA_SET_MEM(CM_REQ_PRIVATE_DATA, req_msg, param->private_data, @@ -1810,6 +1822,9 @@ static void cm_format_req_event(struct cm_work *work, param->rnr_retry_count = IBA_GET(CM_REQ_RNR_RETRY_COUNT, req_msg); param->srq = IBA_GET(CM_REQ_SRQ, req_msg); param->ppath_sgid_attr = cm_id_priv->av.ah_attr.grh.sgid_attr; + param->ece.vendor_id = IBA_GET(CM_REQ_VENDOR_ID, req_msg); + param->ece.attr_mod = be32_to_cpu(req_msg->hdr.attr_mod); + work->cm_event.private_data = IBA_GET_MEM_PTR(CM_REQ_PRIVATE_DATA, req_msg); } @@ -2202,7 +2217,8 @@ static void cm_format_rep(struct cm_rep_msg *rep_msg, struct cm_id_private *cm_id_priv, struct ib_cm_rep_param *param) { - cm_format_mad_hdr(&rep_msg->hdr, CM_REP_ATTR_ID, cm_id_priv->tid); + cm_format_mad_ece_hdr(&rep_msg->hdr, CM_REP_ATTR_ID, cm_id_priv->tid, + param->ece.attr_mod); IBA_SET(CM_REP_LOCAL_COMM_ID, rep_msg, be32_to_cpu(cm_id_priv->id.local_id)); IBA_SET(CM_REP_REMOTE_COMM_ID, rep_msg, @@ -2229,6 +2245,10 @@ static void cm_format_rep(struct cm_rep_msg *rep_msg, IBA_SET(CM_REP_LOCAL_EE_CONTEXT_NUMBER, rep_msg, param->qp_num); } + IBA_SET(CM_REP_VENDOR_ID_L, rep_msg, param->ece.vendor_id); + IBA_SET(CM_REP_VENDOR_ID_M, rep_msg, param->ece.vendor_id >> 8); + IBA_SET(CM_REP_VENDOR_ID_H, rep_msg, param->ece.vendor_id >> 16); + if (param->private_data && param->private_data_len) IBA_SET_MEM(CM_REP_PRIVATE_DATA, rep_msg, param->private_data, param->private_data_len); @@ -2376,6 +2396,11 @@ static void cm_format_rep_event(struct cm_work *work, enum ib_qp_type qp_type) param->flow_control = IBA_GET(CM_REP_END_TO_END_FLOW_CONTROL, rep_msg); param->rnr_retry_count = IBA_GET(CM_REP_RNR_RETRY_COUNT, rep_msg); param->srq = IBA_GET(CM_REP_SRQ, rep_msg); + param->ece.vendor_id = IBA_GET(CM_REP_VENDOR_ID_H, rep_msg) << 16; + param->ece.vendor_id |= IBA_GET(CM_REP_VENDOR_ID_M, rep_msg) << 8; + param->ece.vendor_id |= IBA_GET(CM_REP_VENDOR_ID_L, rep_msg); + param->ece.attr_mod = be32_to_cpu(rep_msg->hdr.attr_mod); + work->cm_event.private_data = IBA_GET_MEM_PTR(CM_REP_PRIVATE_DATA, rep_msg); } @@ -3597,8 +3622,8 @@ static void cm_format_sidr_rep(struct cm_sidr_rep_msg *sidr_rep_msg, struct cm_id_private *cm_id_priv, struct ib_cm_sidr_rep_param *param) { - cm_format_mad_hdr(&sidr_rep_msg->hdr, CM_SIDR_REP_ATTR_ID, - cm_id_priv->tid); + cm_format_mad_ece_hdr(&sidr_rep_msg->hdr, CM_SIDR_REP_ATTR_ID, + cm_id_priv->tid, param->ece.attr_mod); IBA_SET(CM_SIDR_REP_REQUESTID, sidr_rep_msg, be32_to_cpu(cm_id_priv->id.remote_id)); IBA_SET(CM_SIDR_REP_STATUS, sidr_rep_msg, param->status); @@ -3606,6 +3631,10 @@ static void cm_format_sidr_rep(struct cm_sidr_rep_msg *sidr_rep_msg, IBA_SET(CM_SIDR_REP_SERVICEID, sidr_rep_msg, be64_to_cpu(cm_id_priv->id.service_id)); IBA_SET(CM_SIDR_REP_Q_KEY, sidr_rep_msg, param->qkey); + IBA_SET(CM_SIDR_REP_VENDOR_ID_L, sidr_rep_msg, + param->ece.vendor_id & 0xFF); + IBA_SET(CM_SIDR_REP_VENDOR_ID_H, sidr_rep_msg, + (param->ece.vendor_id >> 8) & 0xFF); if (param->info && param->info_length) IBA_SET_MEM(CM_SIDR_REP_ADDITIONAL_INFORMATION, sidr_rep_msg, diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index e81b8a523a3e..f554a371f4fa 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -1911,6 +1911,9 @@ static void cma_set_rep_event_data(struct rdma_cm_event *event, event->param.conn.rnr_retry_count = rep_data->rnr_retry_count; event->param.conn.srq = rep_data->srq; event->param.conn.qp_num = rep_data->remote_qpn; + + event->ece.vendor_id = rep_data->ece.vendor_id; + event->ece.attr_mod = rep_data->ece.attr_mod; } static int cma_cm_event_handler(struct rdma_id_private *id_priv, @@ -2129,6 +2132,9 @@ static void cma_set_req_event_data(struct rdma_cm_event *event, event->param.conn.rnr_retry_count = req_data->rnr_retry_count; event->param.conn.srq = req_data->srq; event->param.conn.qp_num = req_data->remote_qpn; + + event->ece.vendor_id = req_data->ece.vendor_id; + event->ece.attr_mod = req_data->ece.attr_mod; } static int cma_ib_check_req_qp_type(const struct rdma_cm_id *id, @@ -3947,6 +3953,8 @@ static int cma_connect_ib(struct rdma_id_private *id_priv, req.local_cm_response_timeout = CMA_CM_RESPONSE_TIMEOUT; req.max_cm_retries = CMA_MAX_CM_RETRIES; req.srq = id_priv->srq ? 1 : 0; + req.ece.vendor_id = id_priv->ece.vendor_id; + req.ece.attr_mod = id_priv->ece.attr_mod; trace_cm_send_req(id_priv); ret = ib_send_cm_req(id_priv->cm_id.ib, &req); -- cgit v1.2.3