nvme: expose cntrltype and dctype through sysfs

[mirror_ubuntu-jammy-kernel.git] / include / linux / nvme.h

diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index 921c4ba0c4bc028c81b70ed98e72346c89abe631..4573e8a742e1328af1467241d2839bb7b092a031 100644 (file)
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -37,6 +37,12 @@ enum nvme_ctrl_type {
        NVME_CTRL_ADMIN = 3,            /* Administrative controller */
 };
 
+enum nvme_dctype {
+       NVME_DCTYPE_NOT_REPORTED        = 0,
+       NVME_DCTYPE_DDC                 = 1, /* Direct Discovery Controller */
+       NVME_DCTYPE_CDC                 = 2, /* Central Discovery Controller */
+};
+
 /* Address Family codes for Discovery Log Page entry ADRFAM field */
 enum {
        NVMF_ADDR_FAMILY_PCI    = 0,    /* PCIe */
@@ -314,7 +320,9 @@ struct nvme_id_ctrl {
        __le16                  icdoff;
        __u8                    ctrattr;
        __u8                    msdbd;
-       __u8                    rsvd1804[244];
+       __u8                    rsvd1804[2];
+       __u8                    dctype;
+       __u8                    rsvd1807[241];
        struct nvme_id_power_state      psd[32];
        __u8                    vs[1024];
 };