@@ -5,4 +5,4 @@ obj-$(CONFIG_IONIC) := ionic.o
ionic-y := ionic_main.o ionic_bus_pci.o ionic_dev.o ionic_ethtool.o \
ionic_lif.o ionic_rx_filter.o ionic_txrx.o ionic_debugfs.o \
- ionic_stats.o
+ ionic_stats.o ionic_devlink.o
@@ -44,6 +44,7 @@ struct ionic {
DECLARE_BITMAP(intrs, INTR_CTRL_REGS_MAX);
struct work_struct nb_work;
struct notifier_block nb;
+ struct devlink *dl;
};
struct ionic_admin_ctx {
@@ -10,6 +10,7 @@
#include "ionic_bus.h"
#include "ionic_lif.h"
#include "ionic_debugfs.h"
+#include "ionic_devlink.h"
/* Supported devices */
static const struct pci_device_id ionic_id_table[] = {
@@ -212,9 +213,14 @@ static int ionic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
goto err_out_deinit_lifs;
}
+ err = ionic_devlink_register(ionic);
+ if (err)
+ dev_err(dev, "Cannot register devlink (ignored): %d\n", err);
+
return 0;
err_out_deinit_lifs:
+ ionic_devlink_unregister(ionic);
ionic_lifs_deinit(ionic);
err_out_free_lifs:
ionic_lifs_free(ionic);
@@ -247,6 +253,7 @@ static void ionic_remove(struct pci_dev *pdev)
struct ionic *ionic = pci_get_drvdata(pdev);
if (ionic) {
+ ionic_devlink_unregister(ionic);
ionic_lifs_unregister(ionic);
ionic_lifs_deinit(ionic);
ionic_lifs_free(ionic);
new file mode 100644
@@ -0,0 +1,89 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 2017 - 2019 Pensando Systems, Inc */
+
+#include <linux/module.h>
+#include <linux/netdevice.h>
+
+#include "ionic.h"
+#include "ionic_bus.h"
+#include "ionic_lif.h"
+#include "ionic_devlink.h"
+
+struct ionic_devlink {
+ struct ionic *ionic;
+};
+
+static int ionic_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
+ struct netlink_ext_ack *extack)
+{
+ struct ionic *ionic = *(struct ionic **)devlink_priv(dl);
+ struct ionic_dev *idev = &ionic->idev;
+ char buf[16];
+ u32 val;
+
+ devlink_info_driver_name_put(req, DRV_NAME);
+
+ devlink_info_version_fixed_put(req, "fw_version",
+ idev->dev_info.fw_version);
+
+ val = ioread8(&idev->dev_info_regs->fw_status);
+ snprintf(buf, sizeof(buf), "0x%x", val);
+ devlink_info_version_fixed_put(req, "fw_status", buf);
+
+ val = ioread32(&idev->dev_info_regs->fw_heartbeat);
+ snprintf(buf, sizeof(buf), "0x%x", val);
+ devlink_info_version_fixed_put(req, "fw_heartbeat", buf);
+
+ snprintf(buf, sizeof(buf), "0x%x", idev->dev_info.asic_type);
+ devlink_info_version_fixed_put(req, "asic_type", buf);
+
+ snprintf(buf, sizeof(buf), "0x%x", idev->dev_info.asic_rev);
+ devlink_info_version_fixed_put(req, "asic_rev", buf);
+
+ devlink_info_serial_number_put(req, idev->dev_info.serial_num);
+
+ return 0;
+}
+
+static const struct devlink_ops ionic_dl_ops = {
+ .info_get = ionic_dl_info_get,
+};
+
+int ionic_devlink_register(struct ionic *ionic)
+{
+ struct devlink *dl;
+ struct ionic **ip;
+ int err;
+
+ dl = devlink_alloc(&ionic_dl_ops, sizeof(struct ionic *));
+ if (!dl) {
+ dev_warn(ionic->dev, "devlink_alloc failed");
+ return -ENOMEM;
+ }
+
+ ip = (struct ionic **)devlink_priv(dl);
+ *ip = ionic;
+ ionic->dl = dl;
+
+ err = devlink_register(dl, ionic->dev);
+ if (err) {
+ dev_warn(ionic->dev, "devlink_register failed: %d\n", err);
+ goto err_dl_free;
+ }
+
+ return 0;
+
+err_dl_free:
+ ionic->dl = NULL;
+ devlink_free(dl);
+ return err;
+}
+
+void ionic_devlink_unregister(struct ionic *ionic)
+{
+ if (!ionic->dl)
+ return;
+
+ devlink_unregister(ionic->dl);
+ devlink_free(ionic->dl);
+}
new file mode 100644
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright(c) 2017 - 2019 Pensando Systems, Inc */
+
+#ifndef _IONIC_DEVLINK_H_
+#define _IONIC_DEVLINK_H_
+
+#include <net/devlink.h>
+
+int ionic_devlink_register(struct ionic *ionic);
+void ionic_devlink_unregister(struct ionic *ionic);
+
+#endif /* _IONIC_DEVLINK_H_ */
Add a devlink interface for access to information that isn't normally available through ethtool or the iplink interface. Example: $ ./devlink -j -p dev info pci/0000:b6:00.0 { "info": { "pci/0000:b6:00.0": { "driver": "ionic", "serial_number": "FLM18420073", "versions": { "fixed": { "fw_version": "0.11.0-50", "fw_status": "0x1", "fw_heartbeat": "0x716ce", "asic_type": "0x0", "asic_rev": "0x0" } } } } } Signed-off-by: Shannon Nelson <snelson@pensando.io> --- drivers/net/ethernet/pensando/ionic/Makefile | 2 +- drivers/net/ethernet/pensando/ionic/ionic.h | 1 + .../ethernet/pensando/ionic/ionic_bus_pci.c | 7 ++ .../ethernet/pensando/ionic/ionic_devlink.c | 89 +++++++++++++++++++ .../ethernet/pensando/ionic/ionic_devlink.h | 12 +++ 5 files changed, 110 insertions(+), 1 deletion(-) create mode 100644 drivers/net/ethernet/pensando/ionic/ionic_devlink.c create mode 100644 drivers/net/ethernet/pensando/ionic/ionic_devlink.h