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bh=5Vh8j/4nj2m+S9egdULAIS1abfgrtBCZZqvvhqp5OSU=; b=DXk9AdcXC7A8uigNQGcPN4avwrSFU9JU+vRi0uK2ZVVcNe4FrIlwSfVJHP+8vHquAaPweT OTJ+LxIBt0fMozVMKK0bZtQi1NAMBwgS4P8pJXVVBhLp63Hnz3HCiuOjPeOssiDfjmneXi oAXGHEbhH97sPjYxpA2RN5d6Ufu6cXM= X-MC-Unique: oItKdOPfPSSns9DfXDOpHg-1 From: Markus Armbruster To: qemu-devel@nongnu.org Cc: quintela@redhat.com, peterx@redhat.com, leobras@redhat.com Subject: [PATCH 52/52] migration/rdma: Fix how we show device details on open Date: Mon, 18 Sep 2023 16:42:06 +0200 Message-ID: <20230918144206.560120-53-armbru@redhat.com> In-Reply-To: <20230918144206.560120-1-armbru@redhat.com> References: <20230918144206.560120-1-armbru@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.1 on 10.11.54.5 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1695048563628100001 Content-Type: text/plain; charset="utf-8" qemu_rdma_dump_id() dumps RDMA device details to stdout. rdma_start_outgoing_migration() calls it via qemu_rdma_source_init() and qemu_rdma_resolve_host() to show source device details. rdma_start_incoming_migration() arranges its call via rdma_accept_incoming_migration() and qemu_rdma_accept() to show destination device details. Two issues: 1. rdma_start_outgoing_migration() can run in HMP context. The information should arguably go the monitor, not stdout. 2. ibv_query_port() failure is reported as error. Its callers remain unaware of this failure (qemu_rdma_dump_id() can't fail), so reporting this to the user as an error is problematic. Use qemu_printf() instead of printf() and error_report(). Signed-off-by: Markus Armbruster --- migration/rdma.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/migration/rdma.c b/migration/rdma.c index 9e9904984e..8c84fbab7a 100644 --- a/migration/rdma.c +++ b/migration/rdma.c @@ -30,6 +30,7 @@ #include "qemu/sockets.h" #include "qemu/bitmap.h" #include "qemu/coroutine.h" +#include "qemu/qemu-print.h" #include "exec/memory.h" #include #include @@ -742,24 +743,25 @@ static void qemu_rdma_dump_id(const char *who, struct= ibv_context *verbs) struct ibv_port_attr port; =20 if (ibv_query_port(verbs, 1, &port)) { - error_report("Failed to query port information"); + qemu_printf("%s RDMA Device opened, but can't query port informati= on", + who); return; } =20 - printf("%s RDMA Device opened: kernel name %s " - "uverbs device name %s, " - "infiniband_verbs class device path %s, " - "infiniband class device path %s, " - "transport: (%d) %s\n", + qemu_printf("%s RDMA Device opened: kernel name %s " + "uverbs device name %s, " + "infiniband_verbs class device path %s, " + "infiniband class device path %s, " + "transport: (%d) %s\n", who, verbs->device->name, verbs->device->dev_name, verbs->device->dev_path, verbs->device->ibdev_path, port.link_layer, - (port.link_layer =3D=3D IBV_LINK_LAYER_INFINIBAND) ? "Infi= niband" : - ((port.link_layer =3D=3D IBV_LINK_LAYER_ETHERNET) - ? "Ethernet" : "Unknown")); + port.link_layer =3D=3D IBV_LINK_LAYER_INFINIBAND ? "Infini= band" + : port.link_layer =3D=3D IBV_LINK_LAYER_ETHERNET ? "Ethern= et" + : "Unknown"); } =20 /* --=20 2.41.0