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authorKeith Busch <keith.busch@intel.com>2014-05-02 10:40:43 -0600
committerBjorn Helgaas <bhelgaas@google.com>2014-05-27 11:12:29 -0600
commitf0d54a541751af2c6a16d0c081788cc2aef922a5 (patch)
treec9c739c284d31169f2823c60f13d4ad74a7fcaca /drivers/block/nvme-core.c
parent3ebe7f9f7e4a4fd1f6461ecd01ff2961317a483a (diff)
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 <keith.busch@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/block/nvme-core.c')
-rw-r--r--drivers/block/nvme-core.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c
index 7c64fa756cce..a842c71dcc21 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 */