drivers/net/ethernet/pensando/ionic/ionic_devlink.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright(c) 2017 - 2019 Pensando Systems, Inc */
   3
   4 #include <linux/module.h>
   5 #include <linux/netdevice.h>
   6
   7 #include "ionic.h"
   8 #include "ionic_bus.h"
   9 #include "ionic_lif.h"
  10 #include "ionic_devlink.h"
  11
  12 static int ionic_dl_flash_update(struct devlink *dl,
  13                                  struct devlink_flash_update_params *params,
  14                                  struct netlink_ext_ack *extack)
  15 {
  16         struct ionic *ionic = devlink_priv(dl);
  17
  18         return ionic_firmware_update(ionic->lif, params->fw, extack);
  19 }
  20
  21 static int ionic_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
  22                              struct netlink_ext_ack *extack)
  23 {
  24         struct ionic *ionic = devlink_priv(dl);
  25         struct ionic_dev *idev = &ionic->idev;
  26         char buf[16];
  27         int err = 0;
  28
  29         err = devlink_info_version_running_put(req,
  30                                                DEVLINK_INFO_VERSION_GENERIC_FW,
  31                                                idev->dev_info.fw_version);
  32         if (err)
  33                 return err;
  34
  35         snprintf(buf, sizeof(buf), "0x%x", idev->dev_info.asic_type);
  36         err = devlink_info_version_fixed_put(req,
  37                                              DEVLINK_INFO_VERSION_GENERIC_ASIC_ID,
  38                                              buf);
  39         if (err)
  40                 return err;
  41
  42         snprintf(buf, sizeof(buf), "0x%x", idev->dev_info.asic_rev);
  43         err = devlink_info_version_fixed_put(req,
  44                                              DEVLINK_INFO_VERSION_GENERIC_ASIC_REV,
  45                                              buf);
  46         if (err)
  47                 return err;
  48
  49         err = devlink_info_serial_number_put(req, idev->dev_info.serial_num);
  50
  51         return err;
  52 }
  53
  54 static const struct devlink_ops ionic_dl_ops = {
  55         .info_get       = ionic_dl_info_get,
  56         .flash_update   = ionic_dl_flash_update,
  57 };
  58
  59 struct ionic *ionic_devlink_alloc(struct device *dev)
  60 {
  61         struct devlink *dl;
  62
  63         dl = devlink_alloc(&ionic_dl_ops, sizeof(struct ionic), dev);
  64         if (!dl)
  65                 return NULL;
  66
  67         return devlink_priv(dl);
  68 }
  69
  70 void ionic_devlink_free(struct ionic *ionic)
  71 {
  72         struct devlink *dl = priv_to_devlink(ionic);
  73
  74         devlink_free(dl);
  75 }
  76
  77 int ionic_devlink_register(struct ionic *ionic)
  78 {
  79         struct devlink *dl = priv_to_devlink(ionic);
  80         struct devlink_port_attrs attrs = {};
  81         int err;
  82
  83         attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
  84         devlink_port_attrs_set(&ionic->dl_port, &attrs);
  85         err = devlink_port_register(dl, &ionic->dl_port, 0);
  86         if (err) {
  87                 dev_err(ionic->dev, "devlink_port_register failed: %d\n", err);
  88                 return err;
  89         }
  90
  91         SET_NETDEV_DEVLINK_PORT(ionic->lif->netdev, &ionic->dl_port);
  92         devlink_register(dl);
  93         return 0;
  94 }
  95
  96 void ionic_devlink_unregister(struct ionic *ionic)
  97 {
  98         struct devlink *dl = priv_to_devlink(ionic);
  99
 100         devlink_unregister(dl);
 101         devlink_port_unregister(&ionic->dl_port);
 102 }