From: Sepherosa Ziehau <sephe@dragonflybsd.org>
Date: Mon, 18 Nov 2013 12:44:05 +0000 (+0800)
Subject: ahci: If the "nominal rotation rate" is 1, then disk is SSD
X-Git-Tag: v3.9.0~1161
X-Git-Url: https://gitweb.dragonflybsd.org/dragonfly.git/commitdiff_plain/6a790b6a8435dc2cde66b486508825650c4d0b72

ahci: If the "nominal rotation rate" is 1, then disk is SSD
---

diff --git a/sys/dev/disk/ahci/ahci_cam.c b/sys/dev/disk/ahci/ahci_cam.c
index 82e346b8fc..afe5d52299 100644
--- a/sys/dev/disk/ahci/ahci_cam.c
+++ b/sys/dev/disk/ahci/ahci_cam.c
@@ -333,6 +333,9 @@ ahci_cam_probe(struct ahci_port *ap, struct ata_port *atx)
 
 	ata_fix_identify(&at->at_identify);
 
+	if (at->at_type == ATA_PORT_T_DISK && at->at_identify.nomrota_rate == 1)
+		type = "SSD";
+
 	/*
 	 * Read capacity using SATA probe info.
 	 */
diff --git a/sys/dev/disk/ahci/atascsi.h b/sys/dev/disk/ahci/atascsi.h
index 33f962e18d..ffd763ee92 100644
--- a/sys/dev/disk/ahci/atascsi.h
+++ b/sys/dev/disk/ahci/atascsi.h
@@ -153,7 +153,9 @@ struct ata_identify {
 	u_int16_t	padding5[6];	/* 170 */
 	u_int16_t	curmedser[30];	/* 176 */
 	u_int16_t	sctsupport;	/* 206 */
-	u_int16_t	padding4[48];	/* 207 */
+	u_int16_t	padding4[10];	/* 207 */
+	u_int16_t	nomrota_rate;	/* 217 */
+	u_int16_t	padding6[37];	/* 218 */
 	u_int16_t	integrity;	/* 255 */
 } __packed;