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Wed, 14 Oct 2020 03:43:29 -0700 (PDT) From: Coiby Xu To: devel@driverdev.osuosl.org Subject: [PATCH v2 2/7] staging: qlge: Initialize devlink health dump framework Date: Wed, 14 Oct 2020 18:43:01 +0800 Message-Id: <20201014104306.63756-3-coiby.xu@gmail.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201014104306.63756-1-coiby.xu@gmail.com> References: <20201014104306.63756-1-coiby.xu@gmail.com> MIME-Version: 1.0 X-BeenThere: driverdev-devel@linuxdriverproject.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux Driver Project Developer List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Willem de Bruijn , "supporter:QLOGIC QLGE 10Gb ETHERNET DRIVER" , Manish Chopra , Greg Kroah-Hartman , Shung-Hsi Yu , open list , Benjamin Poirier , "open list:QLOGIC QLGE 10Gb ETHERNET DRIVER" , Dan Carpenter Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: driverdev-devel-bounces@linuxdriverproject.org Sender: "devel" Initialize devlink health dump framework for the qlge driver so the coredump could be done via devlink. struct qlge_adapter is now used as the private data struct of struct devlink so it could exist independently of struct net_device and devlink reload could be supported in the future. Signed-off-by: Coiby Xu --- drivers/staging/qlge/Kconfig | 1 + drivers/staging/qlge/Makefile | 2 +- drivers/staging/qlge/qlge.h | 5 +++ drivers/staging/qlge/qlge_devlink.c | 31 +++++++++++++++++++ drivers/staging/qlge/qlge_devlink.h | 9 ++++++ drivers/staging/qlge/qlge_main.c | 48 +++++++++++++++++++++-------- 6 files changed, 82 insertions(+), 14 deletions(-) create mode 100644 drivers/staging/qlge/qlge_devlink.c create mode 100644 drivers/staging/qlge/qlge_devlink.h diff --git a/drivers/staging/qlge/Kconfig b/drivers/staging/qlge/Kconfig index a3cb25a3ab80..6d831ed67965 100644 --- a/drivers/staging/qlge/Kconfig +++ b/drivers/staging/qlge/Kconfig @@ -3,6 +3,7 @@ config QLGE tristate "QLogic QLGE 10Gb Ethernet Driver Support" depends on ETHERNET && PCI + select NET_DEVLINK help This driver supports QLogic ISP8XXX 10Gb Ethernet cards. diff --git a/drivers/staging/qlge/Makefile b/drivers/staging/qlge/Makefile index 1dc2568e820c..07c1898a512e 100644 --- a/drivers/staging/qlge/Makefile +++ b/drivers/staging/qlge/Makefile @@ -5,4 +5,4 @@ obj-$(CONFIG_QLGE) += qlge.o -qlge-objs := qlge_main.o qlge_dbg.o qlge_mpi.o qlge_ethtool.o +qlge-objs := qlge_main.o qlge_dbg.o qlge_mpi.o qlge_ethtool.o qlge_devlink.o diff --git a/drivers/staging/qlge/qlge.h b/drivers/staging/qlge/qlge.h index 6ee83e7efd7c..4a48bcc88fbd 100644 --- a/drivers/staging/qlge/qlge.h +++ b/drivers/staging/qlge/qlge.h @@ -2060,6 +2060,10 @@ struct nic_operations { int (*port_initialize)(struct qlge_adapter *qdev); }; +struct qlge_netdev_priv { + struct ql_adapter *qdev; +}; + /* * The main Adapter structure definition. * This structure has all fields relevant to the hardware. @@ -2077,6 +2081,7 @@ struct qlge_adapter { struct pci_dev *pdev; struct net_device *ndev; /* Parent NET device */ + struct devlink_health_reporter *reporter; /* Hardware information */ u32 chip_rev_id; u32 fw_rev_id; diff --git a/drivers/staging/qlge/qlge_devlink.c b/drivers/staging/qlge/qlge_devlink.c new file mode 100644 index 000000000000..d9c71f45211f --- /dev/null +++ b/drivers/staging/qlge/qlge_devlink.c @@ -0,0 +1,31 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +#include "qlge.h" +#include "qlge_devlink.h" + +static int +qlge_reporter_coredump(struct devlink_health_reporter *reporter, + struct devlink_fmsg *fmsg, void *priv_ctx, + struct netlink_ext_ack *extack) +{ + return 0; +} + +static const struct devlink_health_reporter_ops qlge_reporter_ops = { + .name = "dummy", + .dump = qlge_reporter_coredump, +}; + +void qlge_health_create_reporters(struct qlge_adapter *priv) +{ + struct devlink_health_reporter *reporter; + struct devlink *devlink; + + devlink = priv_to_devlink(priv); + priv->reporter = + devlink_health_reporter_create(devlink, &qlge_reporter_ops, + 0, priv); + if (IS_ERR(priv->reporter)) + netdev_warn(priv->ndev, + "Failed to create reporter, err = %ld\n", + PTR_ERR(reporter)); +} diff --git a/drivers/staging/qlge/qlge_devlink.h b/drivers/staging/qlge/qlge_devlink.h new file mode 100644 index 000000000000..19078e1ac694 --- /dev/null +++ b/drivers/staging/qlge/qlge_devlink.h @@ -0,0 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +#ifndef QLGE_DEVLINK_H +#define QLGE_DEVLINK_H + +#include + +void qlge_health_create_reporters(struct qlge_adapter *priv); + +#endif /* QLGE_DEVLINK_H */ diff --git a/drivers/staging/qlge/qlge_main.c b/drivers/staging/qlge/qlge_main.c index 19e72279b0ce..7a4bae3c12d0 100644 --- a/drivers/staging/qlge/qlge_main.c +++ b/drivers/staging/qlge/qlge_main.c @@ -42,6 +42,7 @@ #include #include "qlge.h" +#include "qlge_devlink.h" char qlge_driver_name[] = DRV_NAME; const char qlge_driver_version[] = DRV_VERSION; @@ -4382,10 +4383,10 @@ static void qlge_release_all(struct pci_dev *pdev) pci_release_regions(pdev); } -static int qlge_init_device(struct pci_dev *pdev, struct net_device *ndev, +static int qlge_init_device(struct pci_dev *pdev, struct qlge_adapter *qdev, int cards_found) { - struct qlge_adapter *qdev = netdev_priv(ndev); + struct net_device *ndev = qdev->ndev; int err = 0; memset((void *)qdev, 0, sizeof(*qdev)); @@ -4548,27 +4549,34 @@ static void qlge_timer(struct timer_list *t) mod_timer(&qdev->timer, jiffies + (5 * HZ)); } +static const struct devlink_ops qlge_devlink_ops; + static int qlge_probe(struct pci_dev *pdev, const struct pci_device_id *pci_entry) { struct net_device *ndev = NULL; struct qlge_adapter *qdev = NULL; + struct devlink *devlink; static int cards_found; int err = 0; - ndev = alloc_etherdev_mq(sizeof(struct qlge_adapter), + devlink = devlink_alloc(&qlge_devlink_ops, sizeof(struct qlge_adapter)); + if (!devlink) + return -ENOMEM; + + qdev = devlink_priv(devlink); + + ndev = alloc_etherdev_mq(sizeof(struct qlge_netdev_priv), min(MAX_CPUS, netif_get_num_default_rss_queues())); if (!ndev) - return -ENOMEM; + goto devlink_free; - err = qlge_init_device(pdev, ndev, cards_found); - if (err < 0) { - free_netdev(ndev); - return err; - } + qdev->ndev = ndev; + err = qlge_init_device(pdev, qdev, cards_found); + if (err < 0) + goto devlink_free; - qdev = netdev_priv(ndev); SET_NETDEV_DEV(ndev, &pdev->dev); ndev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | @@ -4611,8 +4619,14 @@ static int qlge_probe(struct pci_dev *pdev, qlge_release_all(pdev); pci_disable_device(pdev); free_netdev(ndev); - return err; + goto devlink_free; } + + err = devlink_register(devlink, &pdev->dev); + if (err) + goto devlink_free; + + qlge_health_create_reporters(qdev); /* Start up the timer to trigger EEH if * the bus goes dead */ @@ -4623,6 +4637,10 @@ static int qlge_probe(struct pci_dev *pdev, atomic_set(&qdev->lb_count, 0); cards_found++; return 0; + +devlink_free: + devlink_free(devlink); + return err; } netdev_tx_t qlge_lb_send(struct sk_buff *skb, struct net_device *ndev) @@ -4637,14 +4655,18 @@ int qlge_clean_lb_rx_ring(struct rx_ring *rx_ring, int budget) static void qlge_remove(struct pci_dev *pdev) { - struct net_device *ndev = pci_get_drvdata(pdev); - struct qlge_adapter *qdev = netdev_priv(ndev); + struct qlge_adapter *qdev = pci_get_drvdata(pdev); + struct net_device *ndev = qdev->ndev; + struct devlink *devlink = priv_to_devlink(qdev); del_timer_sync(&qdev->timer); qlge_cancel_all_work_sync(qdev); unregister_netdev(ndev); qlge_release_all(pdev); pci_disable_device(pdev); + devlink_health_reporter_destroy(qdev->reporter); + devlink_unregister(devlink); + devlink_free(devlink); free_netdev(ndev); } -- 2.28.0 _______________________________________________ devel mailing list devel@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel