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Thu, 28 Feb 2019 15:49:27 +0000 Received: from AM6PR05MB5926.eurprd05.prod.outlook.com ([fe80::4d49:8512:d097:4a52]) by AM6PR05MB5926.eurprd05.prod.outlook.com ([fe80::4d49:8512:d097:4a52%4]) with mapi id 15.20.1643.022; Thu, 28 Feb 2019 15:49:27 +0000 From: Raslan Darawsheh To: "gaetan.rivet@6wind.com" CC: "dev@dpdk.org" , Thomas Monjalon , Raslan Darawsheh Thread-Topic: [PATCH 2/4] net/failsafe: change back-reference from sub-device Thread-Index: AQHUz30vknUAmBEjI0WYbuxibRzVew== Date: Thu, 28 Feb 2019 15:49:26 +0000 Message-ID: <1551368952-1871-3-git-send-email-rasland@mellanox.com> References: <1551368952-1871-1-git-send-email-rasland@mellanox.com> In-Reply-To: <1551368952-1871-1-git-send-email-rasland@mellanox.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.7.4 x-clientproxiedby: LO2P265CA0431.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:a0::35) To AM6PR05MB5926.eurprd05.prod.outlook.com (2603:10a6:20b:a9::27) authentication-results: spf=none (sender IP is ) smtp.mailfrom=rasland@mellanox.com; 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SFS:(10009020)(396003)(346002)(136003)(39860400002)(366004)(376002)(189003)(199004)(6116002)(3846002)(71200400001)(71190400001)(54906003)(25786009)(476003)(36756003)(478600001)(14454004)(2616005)(5660300002)(7736002)(305945005)(486006)(97736004)(6916009)(446003)(11346002)(50226002)(102836004)(8936002)(76176011)(52116002)(107886003)(81166006)(81156014)(8676002)(68736007)(186003)(386003)(2906002)(2501003)(6506007)(316002)(99286004)(53936002)(6436002)(6486002)(5640700003)(106356001)(2351001)(14444005)(256004)(66066001)(26005)(4326008)(6512007)(86362001)(105586002); DIR:OUT; SFP:1101; SCL:1; SRVR:AM6PR05MB5458; H:AM6PR05MB5926.eurprd05.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:1; received-spf: None (protection.outlook.com: mellanox.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: e64Rk+ePTtl1GA78MtMHY2BaQTLtANUKOX70EMWpZupzFQ+Mw8dPIm6xAnUBV1f9Yp0SLgduUyWR8nv+mggI5piOpN50BOLiAGxwZ7EdXcErYLGXzo5GBBsh8AZ64dcFnJUO3NOEL0N47xgnu3gAiOp1DagIIoM4Jh0lN6cWsj6JyPB2H+wFEQGhCy2BZG4rX63D7vlFTiU9x2SBRVnHxFMoSc7NVIr9eRtH1j1r9QlH01mDUJwFoJjckFD4Bmta0isZvAKMy4PFjgQXfH8yQD9UmgTgrhRWb2zBMrH1hzfDdaskjMpk2/psEw+mX3mB/zt0gkdXUgDKrNNWLHn/zkFyijI6exEdo9VRaQOh4WYHAVpOpupD+KIcqE9+BwbAEWYfxnMUgwDUXFonpDN75vaY0uZd1eMzA73kTTDr+x0= MIME-Version: 1.0 X-OriginatorOrg: Mellanox.com X-MS-Exchange-CrossTenant-Network-Message-Id: 20dbeab9-7403-48b8-6e38-08d69d945173 X-MS-Exchange-CrossTenant-originalarrivaltime: 28 Feb 2019 15:49:26.2220 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-id: a652971c-7d2e-4d9b-a6a4-d149256f461b X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM6PR05MB5458 Subject: [dpdk-dev] [PATCH 2/4] net/failsafe: change back-reference from sub-device X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" In multiprocess context, the sub-device structure is shared between processes. The reference to the failsafe device was a per process pointer. It's changed to port id which is the same for all processes. Signed-off-by: Raslan Darawsheh Signed-off-by: Thomas Monjalon --- drivers/net/failsafe/failsafe_eal.c | 2 +- drivers/net/failsafe/failsafe_ether.c | 15 ++++++++------- drivers/net/failsafe/failsafe_intr.c | 10 +++++----- drivers/net/failsafe/failsafe_private.h | 11 ++++++++--- 4 files changed, 22 insertions(+), 16 deletions(-) diff --git a/drivers/net/failsafe/failsafe_eal.c b/drivers/net/failsafe/failsafe_eal.c index 8a888b1..56d1669 100644 --- a/drivers/net/failsafe/failsafe_eal.c +++ b/drivers/net/failsafe/failsafe_eal.c @@ -114,7 +114,7 @@ fs_bus_init(struct rte_eth_dev *dev) } ETH(sdev) = &rte_eth_devices[pid]; SUB_ID(sdev) = i; - sdev->fs_dev = dev; + sdev->fs_port_id = dev->data->port_id; sdev->dev = ETH(sdev)->device; sdev->state = DEV_PROBED; } diff --git a/drivers/net/failsafe/failsafe_ether.c b/drivers/net/failsafe/failsafe_ether.c index 1783165..8d958e0 100644 --- a/drivers/net/failsafe/failsafe_ether.c +++ b/drivers/net/failsafe/failsafe_ether.c @@ -298,7 +298,7 @@ fs_dev_remove(struct sub_device *sdev) break; } sdev->remove = 0; - failsafe_hotplug_alarm_install(sdev->fs_dev); + failsafe_hotplug_alarm_install(FSDEV_FROM_SUBDEV(sdev)); } static void @@ -318,8 +318,9 @@ fs_dev_stats_save(struct sub_device *sdev) WARN("Using latest snapshot taken before %"PRIu64" seconds.\n", (rte_rdtsc() - timestamp) / rte_get_tsc_hz()); } - failsafe_stats_increment(&PRIV(sdev->fs_dev)->stats_accumulator, - err ? &sdev->stats_snapshot.stats : &stats); + failsafe_stats_increment + (&PRIV(FSDEV_FROM_SUBDEV(sdev))->stats_accumulator, + err ? &sdev->stats_snapshot.stats : &stats); memset(&sdev->stats_snapshot, 0, sizeof(sdev->stats_snapshot)); } @@ -566,17 +567,17 @@ failsafe_eth_rmv_event_callback(uint16_t port_id __rte_unused, { struct sub_device *sdev = cb_arg; - fs_lock(sdev->fs_dev, 0); + fs_lock(FSDEV_FROM_SUBDEV(sdev), 0); /* Switch as soon as possible tx_dev. */ - fs_switch_dev(sdev->fs_dev, sdev); + fs_switch_dev(FSDEV_FROM_SUBDEV(sdev), sdev); /* Use safe bursts in any case. */ - failsafe_set_burst_fn(sdev->fs_dev, 1); + failsafe_set_burst_fn(FSDEV_FROM_SUBDEV(sdev), 1); /* * Async removal, the sub-PMD will try to unregister * the callback at the source of the current thread context. */ sdev->remove = 1; - fs_unlock(sdev->fs_dev, 0); + fs_unlock(FSDEV_FROM_SUBDEV(sdev), 0); return 0; } diff --git a/drivers/net/failsafe/failsafe_intr.c b/drivers/net/failsafe/failsafe_intr.c index 09aa3c6..6fe5816 100644 --- a/drivers/net/failsafe/failsafe_intr.c +++ b/drivers/net/failsafe/failsafe_intr.c @@ -274,14 +274,14 @@ failsafe_eth_rx_intr_ctl_subdevice(struct sub_device *sdev, int op) int rc; int ret = 0; + fsdev = FSDEV_FROM_SUBDEV(sdev); if (sdev == NULL || (ETH(sdev) == NULL) || - sdev->fs_dev == NULL || (PRIV(sdev->fs_dev) == NULL)) { + fsdev == NULL || (PRIV(fsdev) == NULL)) { ERROR("Called with invalid arguments"); return -EINVAL; } dev = ETH(sdev); - fsdev = sdev->fs_dev; - epfd = PRIV(sdev->fs_dev)->rxp.efd; + epfd = PRIV(fsdev)->rxp.efd; pid = PORT_ID(sdev); if (epfd <= 0) { @@ -330,7 +330,7 @@ int failsafe_rx_intr_install_subdevice(struct sub_device *sdev) const struct rte_intr_conf *const intr_conf = Ð(sdev)->data->dev_conf.intr_conf; - fsdev = sdev->fs_dev; + fsdev = FSDEV_FROM_SUBDEV(sdev); rxq = (struct rxq **)fsdev->data->rx_queues; if (intr_conf->rxq == 0) return 0; @@ -368,7 +368,7 @@ void failsafe_rx_intr_uninstall_subdevice(struct sub_device *sdev) struct rte_eth_dev *fsdev; struct rxq *fsrxq; - fsdev = sdev->fs_dev; + fsdev = FSDEV_FROM_SUBDEV(sdev); for (qid = 0; qid < ETH(sdev)->data->nb_rx_queues; qid++) { if (qid < fsdev->data->nb_rx_queues) { fsrxq = fsdev->data->rx_queues[qid]; diff --git a/drivers/net/failsafe/failsafe_private.h b/drivers/net/failsafe/failsafe_private.h index 91b7167..9b53a19 100644 --- a/drivers/net/failsafe/failsafe_private.h +++ b/drivers/net/failsafe/failsafe_private.h @@ -117,7 +117,7 @@ struct sub_device { /* Others are retrieved through a file descriptor */ char *fd_str; /* fail-safe device backreference */ - struct rte_eth_dev *fs_dev; + uint16_t fs_port_id; /* shared between processes*/ /* flag calling for recollection */ volatile unsigned int remove:1; /* flow isolation state */ @@ -251,6 +251,9 @@ extern int failsafe_mac_from_arg; /* dev: (struct rte_eth_dev *) fail-safe device */ #define PRIV(dev) \ ((struct fs_priv *)(dev)->data->dev_private) +/* sdev: (struct sub_device *) */ +#define FSDEV_FROM_SUBDEV(sdev) \ + (&rte_eth_devices[sdev->fs_port_id]) /* sdev: (struct sub_device *) */ #define ETH(sdev) \ @@ -324,7 +327,8 @@ extern int failsafe_mac_from_arg; */ #define FS_ATOMIC_RX(s, i) \ rte_atomic64_read( \ - &((struct rxq *)((s)->fs_dev->data->rx_queues[i]))->refcnt[(s)->sid] \ + &((struct rxq *) \ + (FSDEV_FROM_SUBDEV(s)->data->rx_queues[i]))->refcnt[(s)->sid] \ ) /** * s: (struct sub_device *) @@ -332,7 +336,8 @@ extern int failsafe_mac_from_arg; */ #define FS_ATOMIC_TX(s, i) \ rte_atomic64_read( \ - &((struct txq *)((s)->fs_dev->data->tx_queues[i]))->refcnt[(s)->sid] \ + &((struct txq *) \ + (FSDEV_FROM_SUBDEV(s)->data->tx_queues[i]))->refcnt[(s)->sid] \ ) #ifdef RTE_EXEC_ENV_BSDAPP