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authorKeith Busch <keith.busch@intel.com>2018-03-08 14:50:32 -0700
committerJens Axboe <axboe@kernel.dk>2018-03-26 08:53:43 -0600
commit97c122233f73e91ceed5038e6e59fc5009305f7e (patch)
tree91f4de5e0ac1cc1c8bc91f4b6bd6fd159da9a4f8 /drivers/nvme
parent70da6094a646f0f2d823e077614840cf21055580 (diff)
downloadlinux-97c122233f73e91ceed5038e6e59fc5009305f7e.tar.bz2
nvme-pci: Add .get_address ctrl callback
The nvme-fabrics exports the controller address to sysfs, and we'd like to have parity with this feature for PCIe. This patch provides the appropiate callback and returns the controller address as the pci domain:bus:device.function. Signed-off-by: Keith Busch <keith.busch@intel.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/nvme')
-rw-r--r--drivers/nvme/host/pci.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index aacc8e4b0051..6aec86b8f8ab 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -2414,6 +2414,13 @@ static int nvme_pci_reg_read64(struct nvme_ctrl *ctrl, u32 off, u64 *val)
return 0;
}
+static int nvme_pci_get_address(struct nvme_ctrl *ctrl, char *buf, int size)
+{
+ struct pci_dev *pdev = to_pci_dev(to_nvme_dev(ctrl)->dev);
+
+ return snprintf(buf, size, "%s", dev_name(&pdev->dev));
+}
+
static const struct nvme_ctrl_ops nvme_pci_ctrl_ops = {
.name = "pcie",
.module = THIS_MODULE,
@@ -2423,6 +2430,7 @@ static const struct nvme_ctrl_ops nvme_pci_ctrl_ops = {
.reg_read64 = nvme_pci_reg_read64,
.free_ctrl = nvme_pci_free_ctrl,
.submit_async_event = nvme_pci_submit_async_event,
+ .get_address = nvme_pci_get_address,
};
static int nvme_dev_map(struct nvme_dev *dev)