From b2853fd6c2d0f383dbdf7427e263eb576a633867 Mon Sep 17 00:00:00 2001 From: Moni Shoua Date: Thu, 27 Mar 2014 10:52:58 +0200 Subject: IB/core: Don't resolve passive side RoCE L2 address in CMA REQ handler The code that resolves the passive side source MAC within the rdma_cm connection request handler was both redundant and buggy, so remove it. It was redundant since later, when an RC QP is modified to RTR state, the resolution will take place in the ib_core module. It was buggy because this callback also deals with UD SIDR exchange, for which we incorrectly looked at the REQ member of the CM event and dereferenced a random value. Fixes: dd5f03beb4f7 ("IB/core: Ethernet L2 attributes in verbs/cm structures") Signed-off-by: Moni Shoua Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier --- drivers/infiniband/core/cma.c | 26 -------------------------- 1 file changed, 26 deletions(-) (limited to 'drivers/infiniband/core/cma.c') diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index 199958d9ddc..42c3058e6e9 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -1284,15 +1284,6 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event) struct rdma_id_private *listen_id, *conn_id; struct rdma_cm_event event; int offset, ret; - u8 smac[ETH_ALEN]; - u8 alt_smac[ETH_ALEN]; - u8 *psmac = smac; - u8 *palt_smac = alt_smac; - int is_iboe = ((rdma_node_get_transport(cm_id->device->node_type) == - RDMA_TRANSPORT_IB) && - (rdma_port_get_link_layer(cm_id->device, - ib_event->param.req_rcvd.port) == - IB_LINK_LAYER_ETHERNET)); listen_id = cm_id->context; if (!cma_check_req_qp_type(&listen_id->id, ib_event)) @@ -1336,28 +1327,11 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event) ret = conn_id->id.event_handler(&conn_id->id, &event); if (ret) goto err3; - - if (is_iboe) { - if (ib_event->param.req_rcvd.primary_path != NULL) - rdma_addr_find_smac_by_sgid( - &ib_event->param.req_rcvd.primary_path->sgid, - psmac, NULL); - else - psmac = NULL; - if (ib_event->param.req_rcvd.alternate_path != NULL) - rdma_addr_find_smac_by_sgid( - &ib_event->param.req_rcvd.alternate_path->sgid, - palt_smac, NULL); - else - palt_smac = NULL; - } /* * Acquire mutex to prevent user executing rdma_destroy_id() * while we're accessing the cm_id. */ mutex_lock(&lock); - if (is_iboe) - ib_update_cm_av(cm_id, psmac, palt_smac); if (cma_comp(conn_id, RDMA_CM_CONNECT) && (conn_id->id.qp_type != IB_QPT_UD)) ib_send_cm_mra(cm_id, CMA_CM_MRA_SETTING, NULL, 0); -- cgit v1.2.3-18-g5258