From: Leon Romanovsky <leon@kernel.org>
To: Doug Ledford <dledford@redhat.com>, Jason Gunthorpe <jgg@mellanox.com>
Cc: Leon Romanovsky <leonro@mellanox.com>,
RDMA mailing list <linux-rdma@vger.kernel.org>,
Bart Van Assche <bvanassche@acm.org>,
Sean Hefty <sean.hefty@intel.com>
Subject: [PATCH rdma-rc v2 03/48] RDMA/ucma: Mask QPN to be 24 bits according to IBTA
Date: Thu, 12 Dec 2019 11:37:45 +0200 [thread overview]
Message-ID: <20191212093830.316934-4-leon@kernel.org> (raw)
In-Reply-To: <20191212093830.316934-1-leon@kernel.org>
From: Leon Romanovsky <leonro@mellanox.com>
IBTA declares QPN as 24bits, mask input to ensure that kernel
doesn't get higher bits and ensure by adding WANR_ONCE() that
other CM users do the same.
Fixes: 75216638572f ("RDMA/cma: Export rdma cm interface to userspace")
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
---
drivers/infiniband/core/cm.c | 5 ++++-
drivers/infiniband/core/ucma.c | 2 +-
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index c341a68b6f97..efa2d329da30 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -2102,7 +2102,10 @@ int ib_send_cm_rep(struct ib_cm_id *cm_id,
cm_id_priv->initiator_depth = param->initiator_depth;
cm_id_priv->responder_resources = param->responder_resources;
cm_id_priv->rq_psn = cm_rep_get_starting_psn(rep_msg);
- cm_id_priv->local_qpn = cpu_to_be32(param->qp_num & 0xFFFFFF);
+ WARN_ONCE(param->qp_num & 0xFF000000,
+ "IBTA declares QPN to be 24 bits, but it is 0x%X\n",
+ param->qp_num);
+ cm_id_priv->local_qpn = cpu_to_be32(param->qp_num);
out: spin_unlock_irqrestore(&cm_id_priv->lock, flags);
return ret;
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index 0274e9b704be..57e68491a2fd 100644
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c
@@ -1045,7 +1045,7 @@ static void ucma_copy_conn_param(struct rdma_cm_id *id,
dst->retry_count = src->retry_count;
dst->rnr_retry_count = src->rnr_retry_count;
dst->srq = src->srq;
- dst->qp_num = src->qp_num;
+ dst->qp_num = src->qp_num & 0xFFFFFF;
dst->qkey = (id->route.addr.src_addr.ss_family == AF_IB) ? src->qkey : 0;
}
--
2.20.1
next prev parent reply other threads:[~2019-12-12 9:38 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-12 9:37 [PATCH rdma-rc v2 00/48] Organize code according to IBTA layout Leon Romanovsky
2019-12-12 9:37 ` [PATCH rdma-rc v2 01/48] RDMA/cm: Provide private data size to CM users Leon Romanovsky
2019-12-12 9:37 ` [PATCH rdma-rc v2 02/48] RDMA/srpt: Use private_data_len instead of hardcoded value Leon Romanovsky
2019-12-12 9:37 ` Leon Romanovsky [this message]
2019-12-12 9:37 ` [PATCH rdma-rc v2 04/48] RDMA/cm: Add SET/GET implementations to hide IBA wire format Leon Romanovsky
2020-01-04 2:15 ` Jason Gunthorpe
2019-12-12 9:37 ` [PATCH rdma-rc v2 05/48] RDMA/cm: Request For Communication (REQ) message definitions Leon Romanovsky
2020-01-07 1:17 ` Jason Gunthorpe
2019-12-12 9:37 ` [PATCH rdma-rc v2 06/48] RDMA/cm: Message Receipt Acknowledgment (MRA) " Leon Romanovsky
2019-12-12 9:37 ` [PATCH rdma-rc v2 07/48] RDMA/cm: Reject (REJ) " Leon Romanovsky
2019-12-12 9:37 ` [PATCH rdma-rc v2 08/48] RDMA/cm: Reply To Request for communication (REP) definitions Leon Romanovsky
2019-12-12 9:37 ` [PATCH rdma-rc v2 09/48] RDMA/cm: Ready To Use (RTU) definitions Leon Romanovsky
2019-12-12 9:37 ` [PATCH rdma-rc v2 10/48] RDMA/cm: Request For Communication Release (DREQ) definitions Leon Romanovsky
2019-12-12 9:37 ` [PATCH rdma-rc v2 11/48] RDMA/cm: Reply To Request For Communication Release (DREP) definitions Leon Romanovsky
2019-12-12 9:37 ` [PATCH rdma-rc v2 12/48] RDMA/cm: Load Alternate Path (LAP) definitions Leon Romanovsky
2019-12-12 9:37 ` [PATCH rdma-rc v2 13/48] RDMA/cm: Alternate Path Response (APR) message definitions Leon Romanovsky
2019-12-12 9:37 ` [PATCH rdma-rc v2 14/48] RDMA/cm: Service ID Resolution Request (SIDR_REQ) definitions Leon Romanovsky
2019-12-12 9:37 ` [PATCH rdma-rc v2 15/48] RDMA/cm: Service ID Resolution Response (SIDR_REP) definitions Leon Romanovsky
2019-12-12 9:37 ` [PATCH rdma-rc v2 16/48] RDMA/cm: Convert QPN and EECN to be u32 variables Leon Romanovsky
2019-12-12 9:37 ` [PATCH rdma-rc v2 17/48] RDMA/cm: Convert REQ responded resources to the new scheme Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 18/48] RDMA/cm: Convert REQ initiator depth " Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 19/48] RDMA/cm: Convert REQ remote response timeout Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 20/48] RDMA/cm: Simplify QP type to wire protocol translation Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 21/48] RDMA/cm: Convert REQ flow control Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 22/48] RDMA/cm: Convert starting PSN to be u32 variable Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 23/48] RDMA/cm: Update REQ local response timeout Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 24/48] RDMA/cm: Convert REQ retry count to use new scheme Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 25/48] RDMA/cm: Update REQ path MTU field Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 26/48] RDMA/cm: Convert REQ RNR retry timeout counter Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 27/48] RDMA/cm: Convert REQ MAX CM retries Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 28/48] RDMA/cm: Convert REQ SRQ field Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 29/48] RDMA/cm: Convert REQ flow label field Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 30/48] RDMA/cm: Convert REQ packet rate Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 31/48] RDMA/cm: Convert REQ SL fields Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 32/48] RDMA/cm: Convert REQ subnet local fields Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 33/48] RDMA/cm: Convert REQ local ack timeout Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 34/48] RDMA/cm: Convert MRA MRAed field Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 35/48] RDMA/cm: Convert MRA service timeout Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 36/48] RDMA/cm: Update REJ struct to use new scheme Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 37/48] RDMA/cm: Convert REP target ack delay field Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 38/48] RDMA/cm: Convert REP failover accepted field Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 39/48] RDMA/cm: Convert REP flow control field Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 40/48] RDMA/cm: Convert REP RNR retry count field Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 41/48] RDMA/cm: Convert REP SRQ field Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 42/48] RDMA/cm: Delete unused CM LAP functions Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 43/48] RDMA/cm: Convert LAP flow label field Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 44/48] RDMA/cm: Convert LAP fields Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 45/48] RDMA/cm: Delete unused CM ARP functions Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 46/48] RDMA/cm: Convert SIDR_REP to new scheme Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 47/48] RDMA/cm: Add Enhanced Connection Establishment (ECE) bits Leon Romanovsky
2019-12-17 12:33 ` Leon Romanovsky
2019-12-12 9:38 ` [PATCH rdma-rc v2 48/48] RDMA/cm: Convert private_date access Leon Romanovsky
2019-12-12 12:06 ` [PATCH rdma-rc v2 00/48] Organize code according to IBTA layout Leon Romanovsky
2020-01-07 18:40 ` Jason Gunthorpe
2020-01-16 7:32 ` Leon Romanovsky
2020-01-16 19:24 ` Jason Gunthorpe
2020-01-16 19:31 ` Leon Romanovsky
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