Due to having no hardware for testing, this is just a sample code
to support PCI device hot-removal. It just passing compilation,
no any tests.
Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx>
---
drivers/scsi/eata.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/drivers/scsi/eata.c b/drivers/scsi/eata.c
index b92e6856f909..f3bd7cbf260e 100644
--- a/drivers/scsi/eata.c
+++ b/drivers/scsi/eata.c
@@ -1474,6 +1474,21 @@ static unsigned int port_probe(unsigned long port_base,
#ifdef CONFIG_PCI
static int eata2x_pci_device_count;
+/* TODO: need help here to shutdown the scsi host and release resources */
+static void port_remove(unsigned int id, resource_size_t port_base,
+ struct pci_dev *pdev)
+{
+ struct Scsi_Host *shost = sh[id];
+
+ /* TODO: stop scsi device */
+ scsi_unregister(shost);
+ /* TODO: clean up resources allocated by port_detect() */
+ clear_bit(id, eata_board_bitmap);
+ free_irq(shost->irq, &sha[id]);
+ release_region(port_base, REGION_SIZE);
+ ida_simple_remove(&eata_ida, id);
+}
+
static int eata2x_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
{
int i, ret = -ENXIO;
@@ -1521,6 +1536,16 @@ out_error:
return ret;
}
+static void eata2x_pci_remove(struct pci_dev *pdev)
+{
+ int id = (int)(long)dev_get_drvdata(&pdev->dev);
+ resource_size_t port_base;
+
+ port_base = pci_resource_start(pdev, 0) + PCI_BASE_ADDRESS_0;
+ port_remove(id, port_base, pdev);
+ pci_disable_device(pdev);
+}
+
static struct pci_device_id eata2x_tbl[] = {
{ PCI_DEVICE_CLASS(PCI_CLASS_STORAGE_SCSI << 8, PCI_ANY_ID) },
{ },
@@ -1531,6 +1556,7 @@ static struct pci_driver eata2x_pci_driver = {
.name = "eata",
.id_table = eata2x_tbl,
.probe = eata2x_pci_probe,
+ .remove = eata2x_pci_remove,
};
static int eata2x_probe_pci_devices(struct scsi_host_template *tpnt)
--
1.7.10.4
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