From f0d54a541751af2c6a16d0c081788cc2aef922a5 Mon Sep 17 00:00:00 2001 From: Keith Busch Date: Fri, 2 May 2014 10:40:43 -0600 Subject: [PATCH] NVMe: Implement PCIe reset notification callback Quiesce and shutdown the device prior to reset, then restart the device and resume IO after. Signed-off-by: Keith Busch Signed-off-by: Bjorn Helgaas --- drivers/block/nvme-core.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c index 7c64fa7..a842c71 100644 --- a/drivers/block/nvme-core.c +++ b/drivers/block/nvme-core.c @@ -2775,6 +2775,16 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id) return result; } +static void nvme_reset_notify(struct pci_dev *pdev, bool prepare) +{ + struct nvme_dev *dev = pci_get_drvdata(pdev); + + if (prepare) + nvme_dev_shutdown(dev); + else + nvme_dev_resume(dev); +} + static void nvme_shutdown(struct pci_dev *pdev) { struct nvme_dev *dev = pci_get_drvdata(pdev); @@ -2839,6 +2849,7 @@ static const struct pci_error_handlers nvme_err_handler = { .link_reset = nvme_link_reset, .slot_reset = nvme_slot_reset, .resume = nvme_error_resume, + .reset_notify = nvme_reset_notify, }; /* Move to pci_ids.h later */ -- 2.7.4