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b=TJd6eZTcfUHZhgxggBT9FRXuG0L0hiDDwHVJWvHOJiYmVg6UEY0AgRUu6khHIeavD2YEeeQCwrhxF5eOgs2Nhj3i1FFFDQ+kEYxR6euir2pU6sII+evDetjKl0DAYJzTdS0SmxPkkPHknTx0YhLV4imilPL0UuHhsoYjx3fauop/znNkgCDyt5hxTKKejq2B/2BY/Jkb493hYVxyKDwRoOMssGu0Lv5GAsZ7BYYdZPeKQ7j/Soo0tQuaG89bb9cnp0T4kVYXFP3N8d/7nC4ywEO/bdAfXMK2SB/+E0f3Df00/WjP0g2+rajbLdb9iFCiGk7rjr19S/05lO0EtCA8fQ== From: Het Gala To: qemu-devel@nongnu.org Cc: prerna.saxena@nutanix.com, quintela@redhat.com, dgilbert@redhat.com, pbonzini@redhat.com, berrange@redhat.com, armbru@redhat.com, eblake@redhat.com, manish.mishra@nutanix.com, aravind.retnakaran@nutanix.com, Het Gala Subject: [PATCH v6 4/9] migration: convert rdma backend to accept MigrateAddress struct Date: Tue, 6 Jun 2023 10:15:52 +0000 Message-Id: <20230606101557.202060-5-het.gala@nutanix.com> X-Mailer: git-send-email 2.22.3 In-Reply-To: <20230606101557.202060-1-het.gala@nutanix.com> References: <20230606101557.202060-1-het.gala@nutanix.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: SJ0PR03CA0251.namprd03.prod.outlook.com (2603:10b6:a03:3a0::16) To BYAPR02MB4343.namprd02.prod.outlook.com (2603:10b6:a03:57::18) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BYAPR02MB4343:EE_|PH0PR02MB7797:EE_ X-MS-Office365-Filtering-Correlation-Id: ed9aed9f-f221-4c89-5210-08db66770c9f x-proofpoint-crosstenant: true X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.155.12; envelope-from=het.gala@nutanix.com; helo=mx0b-002c1b01.pphosted.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, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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 @nutanix.com) X-ZM-MESSAGEID: 1686046720686100007 Content-Type: text/plain; charset="utf-8" RDMA based transport backend for 'migrate'/'migrate-incoming' QAPIs accept new wire protocol of MigrateAddress struct. It is achived by parsing 'uri' string and storing migration parameters required for RDMA connection into well defined InetSocketAddress struct. Suggested-by: Aravind Retnakaran Signed-off-by: Het Gala --- migration/migration.c | 8 ++++---- migration/rdma.c | 34 ++++++++++++---------------------- migration/rdma.h | 6 ++++-- 3 files changed, 20 insertions(+), 28 deletions(-) diff --git a/migration/migration.c b/migration/migration.c index 0554536b7f..ff020656fb 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -489,8 +489,8 @@ static void qemu_start_incoming_migration(const char *u= ri, Error **errp) fd_start_incoming_migration(saddr->u.fd.str, errp); } #ifdef CONFIG_RDMA - } else if (strstart(uri, "rdma:", &p)) { - rdma_start_incoming_migration(p, errp); + } else if (channel->transport =3D=3D MIGRATION_ADDRESS_TYPE_RDMA) { + rdma_start_incoming_migration(&channel->u.rdma, errp); #endif } else if (strstart(uri, "exec:", &p)) { exec_start_incoming_migration(p, errp); @@ -1717,8 +1717,8 @@ void qmp_migrate(const char *uri, bool has_blk, bool = blk, fd_start_outgoing_migration(s, saddr->u.fd.str, &local_err); } #ifdef CONFIG_RDMA - } else if (strstart(uri, "rdma:", &p)) { - rdma_start_outgoing_migration(s, p, &local_err); + } else if (channel->transport =3D=3D MIGRATION_ADDRESS_TYPE_RDMA) { + rdma_start_outgoing_migration(s, &channel->u.rdma, &local_err); #endif } else if (strstart(uri, "exec:", &p)) { exec_start_outgoing_migration(s, p, &local_err); diff --git a/migration/rdma.c b/migration/rdma.c index dd1c039e6c..4d64fae492 100644 --- a/migration/rdma.c +++ b/migration/rdma.c @@ -319,7 +319,6 @@ typedef struct RDMALocalBlocks { typedef struct RDMAContext { char *host; int port; - char *host_port; =20 RDMAWorkRequestData wr_data[RDMA_WRID_MAX]; =20 @@ -2455,9 +2454,7 @@ static void qemu_rdma_cleanup(RDMAContext *rdma) rdma->channel =3D NULL; } g_free(rdma->host); - g_free(rdma->host_port); rdma->host =3D NULL; - rdma->host_port =3D NULL; } =20 =20 @@ -2739,28 +2736,17 @@ static void qemu_rdma_return_path_dest_init(RDMACon= text *rdma_return_path, rdma_return_path->is_return_path =3D true; } =20 -static void *qemu_rdma_data_init(const char *host_port, Error **errp) +static void *qemu_rdma_data_init(InetSocketAddress *saddr, Error **errp) { RDMAContext *rdma =3D NULL; - InetSocketAddress *addr; =20 - if (host_port) { + if (saddr) { rdma =3D g_new0(RDMAContext, 1); rdma->current_index =3D -1; rdma->current_chunk =3D -1; =20 - addr =3D g_new(InetSocketAddress, 1); - if (!inet_parse(addr, host_port, NULL)) { - rdma->port =3D atoi(addr->port); - rdma->host =3D g_strdup(addr->host); - rdma->host_port =3D g_strdup(host_port); - } else { - ERROR(errp, "bad RDMA migration address '%s'", host_port); - g_free(rdma); - rdma =3D NULL; - } - - qapi_free_InetSocketAddress(addr); + rdma->host =3D g_strdup(saddr->host); + rdma->port =3D atoi(saddr->port); } =20 return rdma; @@ -3359,6 +3345,7 @@ static int qemu_rdma_accept(RDMAContext *rdma) .private_data_len =3D sizeof(c= ap), }; RDMAContext *rdma_return_path =3D NULL; + g_autoptr(InetSocketAddress) isock =3D g_new0(InetSocketAddress, 1); struct rdma_cm_event *cm_event; struct ibv_context *verbs; int ret =3D -EINVAL; @@ -3374,13 +3361,16 @@ static int qemu_rdma_accept(RDMAContext *rdma) goto err_rdma_dest_wait; } =20 + isock->host =3D rdma->host; + isock->port =3D g_strdup_printf("%d", rdma->port); + /* * initialize the RDMAContext for return path for postcopy after first * connection request reached. */ if ((migrate_postcopy() || migrate_return_path()) && !rdma->is_return_path) { - rdma_return_path =3D qemu_rdma_data_init(rdma->host_port, NULL); + rdma_return_path =3D qemu_rdma_data_init(isock, NULL); if (rdma_return_path =3D=3D NULL) { rdma_ack_cm_event(cm_event); goto err_rdma_dest_wait; @@ -4113,7 +4103,8 @@ static void rdma_accept_incoming_migration(void *opaq= ue) } } =20 -void rdma_start_incoming_migration(const char *host_port, Error **errp) +void rdma_start_incoming_migration(InetSocketAddress *host_port, + Error **errp) { int ret; RDMAContext *rdma; @@ -4159,13 +4150,12 @@ err: error_propagate(errp, local_err); if (rdma) { g_free(rdma->host); - g_free(rdma->host_port); } g_free(rdma); } =20 void rdma_start_outgoing_migration(void *opaque, - const char *host_port, Error **errp) + InetSocketAddress *host_port, Error **errp) { MigrationState *s =3D opaque; RDMAContext *rdma_return_path =3D NULL; diff --git a/migration/rdma.h b/migration/rdma.h index de2ba09dc5..ee89296555 100644 --- a/migration/rdma.h +++ b/migration/rdma.h @@ -14,12 +14,14 @@ * */ =20 +#include "qemu/sockets.h" + #ifndef QEMU_MIGRATION_RDMA_H #define QEMU_MIGRATION_RDMA_H =20 -void rdma_start_outgoing_migration(void *opaque, const char *host_port, +void rdma_start_outgoing_migration(void *opaque, InetSocketAddress *host_p= ort, Error **errp); =20 -void rdma_start_incoming_migration(const char *host_port, Error **errp); +void rdma_start_incoming_migration(InetSocketAddress *host_port, Error **e= rrp); =20 #endif --=20 2.22.3