[PATCH 11/20] lightnvm: pblk: check for supported version

From: "Javier González" <jg@lightnvm.io>
To: mb@lightnvm.io
Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-nvme@lists.infradead.org,
	"Javier González" <javier@cnexlabs.com>
Subject: [PATCH 11/20] lightnvm: pblk: check for supported version
Date: Wed, 21 Feb 2018 10:26:49 +0100	[thread overview]
Message-ID: <1519205218-26994-12-git-send-email-javier@cnexlabs.com> (raw)
In-Reply-To: <1519205218-26994-1-git-send-email-javier@cnexlabs.com>

At this point, only 1.2 spec is supported, thus check for it. Also,
since device-side L2P is only supported in the 1.2 spec, make sure to
only check its value under 1.2.

Signed-off-by: Javier González <javier@cnexlabs.com>
---
 drivers/lightnvm/pblk-init.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c
index 56b4afc27add..ec39800eea42 100644
--- a/drivers/lightnvm/pblk-init.c
+++ b/drivers/lightnvm/pblk-init.c
@@ -990,9 +990,15 @@ static void *pblk_init(struct nvm_tgt_dev *dev, struct gendisk *tdisk,
 	struct pblk *pblk;
 	int ret;
 
-	if (dev->geo.c.dom & NVM_RSP_L2P) {
+	if (geo->c.version != NVM_OCSSD_SPEC_12) {
+		pr_err("pblk: OCSSD version not supported (%u)\n",
+							geo->c.version);
+		return ERR_PTR(-EINVAL);
+	}
+
+	if (geo->c.version == NVM_OCSSD_SPEC_12 && geo->c.dom & NVM_RSP_L2P) {
 		pr_err("pblk: host-side L2P table not supported. (%x)\n",
-							dev->geo.c.dom);
+							geo->c.dom);
 		return ERR_PTR(-EINVAL);
 	}
 
-- 
2.7.4
