From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jan Blunck Subject: [PATCH v7 12/15] pci: implement hotplug bus operation Date: Thu, 29 Jun 2017 20:22:03 +0200 Message-ID: <20170629182206.1072-13-jblunck@infradead.org> References: <20170629182206.1072-1-jblunck@infradead.org> Cc: gaetan.rivet@6wind.com, shreyansh.jain@nxp.com To: dev@dpdk.org Return-path: Received: from mail-wm0-f65.google.com (mail-wm0-f65.google.com [74.125.82.65]) by dpdk.org (Postfix) with ESMTP id B34067CB3 for ; Thu, 29 Jun 2017 20:22:41 +0200 (CEST) Received: by mail-wm0-f65.google.com with SMTP id u23so4076179wma.2 for ; Thu, 29 Jun 2017 11:22:41 -0700 (PDT) In-Reply-To: <20170629182206.1072-1-jblunck@infradead.org> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" From: Gaetan Rivet Signed-off-by: Gaetan Rivet --- lib/librte_eal/common/eal_common_pci.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/lib/librte_eal/common/eal_common_pci.c b/lib/librte_eal/common/eal_common_pci.c index e449758..5ee100e 100644 --- a/lib/librte_eal/common/eal_common_pci.c +++ b/lib/librte_eal/common/eal_common_pci.c @@ -47,6 +47,7 @@ #include #include #include +#include #include #include #include @@ -505,11 +506,44 @@ pci_find_device(const struct rte_device *start, rte_dev_cmp_t cmp, return NULL; } +static int +pci_plug(struct rte_device *dev, const char *devargs __rte_unused) +{ + struct rte_pci_device *pdev; + struct rte_pci_addr *addr; + + addr = &RTE_DEV_TO_PCI(dev)->addr; + + /* Find the current device holding this address in the bus. */ + FOREACH_DEVICE_ON_PCIBUS(pdev) { + if (rte_eal_compare_pci_addr(&pdev->addr, addr) == 0) + return rte_pci_probe_one(addr); + } + + rte_errno = ENODEV; + return -1; +} + +static int +pci_unplug(struct rte_device *dev) +{ + struct rte_pci_device *pdev; + + pdev = RTE_DEV_TO_PCI(dev); + if (rte_pci_detach(&pdev->addr) != 0) { + rte_errno = ENODEV; + return -1; + } + return 0; +} + struct rte_pci_bus rte_pci_bus = { .bus = { .scan = rte_pci_scan, .probe = rte_pci_probe, .find_device = pci_find_device, + .plug = pci_plug, + .unplug = pci_unplug, }, .device_list = TAILQ_HEAD_INITIALIZER(rte_pci_bus.device_list), .driver_list = TAILQ_HEAD_INITIALIZER(rte_pci_bus.driver_list), -- 2.9.4