From: chenjiayi <chenjiayi22@huawei.com>
Date: Mon, 8 Jan 2024 11:45:18 +0000 (+0800)
Subject: udev: distinguish host-managed zoned block in scsi_id
X-Git-Tag: v256-rc1~1173
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=204594ecf1bc03f0e620e10d8beaec439e7fd6ab;p=thirdparty%2Fsystemd.git

udev: distinguish host-managed zoned block in scsi_id

According to SPC4, the value of 0x14 is reserved to distinguish
host managed zoned block, e.g., some SMR (Shingled Magnetic Recording)
disks.

Other utilities such as sg3_utils can successfully recognize such
kind of disks. This patch implements the same ability.
---

diff --git a/src/udev/scsi_id/scsi_id.c b/src/udev/scsi_id/scsi_id.c
index 6308c52b7ec..d7d4380851d 100644
--- a/src/udev/scsi_id/scsi_id.c
+++ b/src/udev/scsi_id/scsi_id.c
@@ -84,6 +84,13 @@ static void set_type(unsigned type_num, char *to, size_t len) {
         case 0xf:
                 type = "optical";
                 break;
+        case 0x14:
+                /*
+                 * Use "zbc" here to be brief and consistent with "lsscsi" command.
+                 * Other tools, e.g., "sg3_utils" would say "host managed zoned block".
+                 */
+                type = "zbc";
+                break;
         default:
                 type = "generic";
                 break;