netdev - [PATCH net-next v3 4/8] nfp: devlink: report driver name and serial number

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Date:   Wed, 30 Jan 2019 15:41:29 -0800
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org, oss-drivers@...ronome.com,
        jiri@...nulli.us, andrew@...n.ch, f.fainelli@...il.com,
        mkubecek@...e.cz, eugenem@...com, jonathan.lemon@...il.com,
        Jakub Kicinski <jakub.kicinski@...ronome.com>
Subject: [PATCH net-next v3 4/8] nfp: devlink: report driver name and serial number

Report the basic info through new devlink info API.

RFCv2:
 - add driver name;
 - align serial to core changes.

Signed-off-by: Jakub Kicinski <jakub.kicinski@...ronome.com>
---
 .../net/ethernet/netronome/nfp/nfp_devlink.c  | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/net/ethernet/netronome/nfp/nfp_devlink.c b/drivers/net/ethernet/netronome/nfp/nfp_devlink.c
index 808647ec3573..2ba3b3891d99 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_devlink.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_devlink.c
@@ -4,6 +4,7 @@
 #include <linux/rtnetlink.h>
 #include <net/devlink.h>
 
+#include "nfpcore/nfp.h"
 #include "nfpcore/nfp_nsp.h"
 #include "nfp_app.h"
 #include "nfp_main.h"
@@ -171,6 +172,28 @@ static int nfp_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode,
 	return ret;
 }
 
+static int
+nfp_devlink_info_get(struct devlink *devlink, struct devlink_info_req *req,
+		     struct netlink_ext_ack *extack)
+{
+	struct nfp_pf *pf = devlink_priv(devlink);
+	const char *sn;
+	int err;
+
+	err = devlink_info_driver_name_put(req, "nfp");
+	if (err)
+		return err;
+
+	sn = nfp_hwinfo_lookup(pf->hwinfo, "assembly.serial");
+	if (sn) {
+		err = devlink_info_serial_number_put(req, sn);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
 const struct devlink_ops nfp_devlink_ops = {
 	.port_split		= nfp_devlink_port_split,
 	.port_unsplit		= nfp_devlink_port_unsplit,
@@ -178,6 +201,7 @@ const struct devlink_ops nfp_devlink_ops = {
 	.sb_pool_set		= nfp_devlink_sb_pool_set,
 	.eswitch_mode_get	= nfp_devlink_eswitch_mode_get,
 	.eswitch_mode_set	= nfp_devlink_eswitch_mode_set,
+	.info_get		= nfp_devlink_info_get,
 };
 
 int nfp_devlink_port_register(struct nfp_app *app, struct nfp_port *port)
-- 
2.19.2