@@ -296,6 +296,7 @@ config ICE
default n
depends on PCI_MSI
select VIRTUAL_BUS
+ select NET_DEVLINK
---help---
This driver supports Intel(R) Ethernet Connection E800 Series of
devices. For more information on how to identify your adapter, go
@@ -20,6 +20,7 @@ ice-y := ice_main.o \
ice_flex_pipe.o \
ice_flow.o \
ice_idc.o \
+ ice_devlink.o \
ice_ethtool.o
ice-$(CONFIG_PCI_IOV) += ice_virtchnl_pf.o ice_sriov.o
ice-$(CONFIG_DCB) += ice_dcb.o ice_dcb_nl.o ice_dcb_lib.o
@@ -35,6 +35,7 @@
#include <linux/bpf.h>
#include <linux/virtual_bus.h>
#include <linux/avf/virtchnl.h>
+#include <net/devlink.h>
#include <net/ipv6.h>
#include <net/xdp_sock.h>
#include <net/geneve.h>
@@ -358,6 +359,9 @@ enum ice_pf_flags {
struct ice_pf {
struct pci_dev *pdev;
+ /* devlink port data */
+ struct devlink_port devlink_port;
+
/* OS reserved IRQ details */
struct msix_entry *msix_entries;
struct ice_res_tracker *irq_tracker;
new file mode 100644
@@ -0,0 +1,117 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020, Intel Corporation. */
+
+#include "ice.h"
+#include "ice_devlink.h"
+
+static const struct devlink_ops ice_devlink_ops = {
+};
+
+static void ice_devlink_free(void *devlink_ptr)
+{
+ devlink_free((struct devlink *)devlink_ptr);
+}
+
+/**
+ * ice_allocate_pf - Allocate devlink and return PF structure pointer
+ * @dev: the device to allocate for
+ *
+ * Allocate a devlink instance for this device and return the private area as
+ * the PF structure. The devlink memory is kept track of through devres by
+ * adding an action to remove it when unwinding.
+ */
+struct ice_pf *ice_allocate_pf(struct device *dev)
+{
+ struct devlink *devlink;
+
+ devlink = devlink_alloc(&ice_devlink_ops, sizeof(struct ice_pf));
+ if (!devlink)
+ return NULL;
+
+ /* Add an action to teardown the devlink when unwinding the driver */
+ if (devm_add_action(dev, ice_devlink_free, devlink)) {
+ devlink_free(devlink);
+ return NULL;
+ }
+
+ return devlink_priv(devlink);
+}
+
+/**
+ * ice_devlink_register - Register devlink interface for this PF
+ * @pf: the PF to register the devlink for.
+ *
+ * Register the devlink instance associated with this physical function.
+ *
+ * Return: zero on success or an error code on failure.
+ */
+int ice_devlink_register(struct ice_pf *pf)
+{
+ struct devlink *devlink = priv_to_devlink(pf);
+ struct device *dev = ice_pf_to_dev(pf);
+ int err;
+
+ err = devlink_register(devlink, dev);
+ if (err) {
+ dev_err(dev, "devlink registration failed: %d\n", err);
+ return err;
+ }
+
+ return 0;
+}
+
+/**
+ * ice_devlink_unregister - Unregister devlink resources for this PF.
+ * @pf: the PF structure to cleanup
+ *
+ * Releases resources used by devlink and cleans up associated memory.
+ */
+void ice_devlink_unregister(struct ice_pf *pf)
+{
+ devlink_unregister(priv_to_devlink(pf));
+}
+
+/**
+ * ice_devlink_create_port - Create a devlink port for this PF
+ * @pf: the PF to create a port for
+ *
+ * Create and register a devlink_port for this PF. Note that although each
+ * physical function is connected to a separate devlink instance, the port
+ * will still be numbered according to the physical function id.
+ *
+ * Return: zero on success or an error code on failure.
+ */
+int ice_devlink_create_port(struct ice_pf *pf)
+{
+ struct devlink *devlink = priv_to_devlink(pf);
+ struct ice_vsi *vsi = ice_get_main_vsi(pf);
+ struct device *dev = ice_pf_to_dev(pf);
+ int err;
+
+ if (!vsi) {
+ dev_err(dev, "%s: unable to find main VSI\n", __func__);
+ return -EIO;
+ }
+
+ devlink_port_attrs_set(&pf->devlink_port, DEVLINK_PORT_FLAVOUR_PHYSICAL,
+ pf->hw.pf_id, false, 0, NULL, 0);
+ err = devlink_port_register(devlink, &pf->devlink_port, pf->hw.pf_id);
+ if (err) {
+ dev_err(dev, "devlink_port_register failed: %d\n", err);
+ return err;
+ }
+
+ return 0;
+}
+
+/**
+ * ice_devlink_destroy_port - Destroy the devlink_port for this PF
+ * @pf: the PF to cleanup
+ *
+ * Unregisters the devlink_port structure associated with this PF.
+ */
+void ice_devlink_destroy_port(struct ice_pf *pf)
+{
+ devlink_port_type_clear(&pf->devlink_port);
+ devlink_port_unregister(&pf->devlink_port);
+}
new file mode 100644
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2019, Intel Corporation. */
+
+#ifndef _ICE_DEVLINK_H_
+#define _ICE_DEVLINK_H_
+
+struct ice_pf *ice_allocate_pf(struct device *dev);
+
+int ice_devlink_register(struct ice_pf *pf);
+void ice_devlink_unregister(struct ice_pf *pf);
+int ice_devlink_create_port(struct ice_pf *pf);
+void ice_devlink_destroy_port(struct ice_pf *pf);
+
+#endif /* _ICE_DEVLINK_H_ */
@@ -10,6 +10,7 @@
#include "ice_lib.h"
#include "ice_dcb_lib.h"
#include "ice_dcb_nl.h"
+#include "ice_devlink.h"
#define DRV_VERSION_MAJOR 0
#define DRV_VERSION_MINOR 8
@@ -2426,6 +2427,8 @@ static int ice_cfg_netdev(struct ice_vsi *vsi)
if (err)
return err;
+ devlink_port_type_eth_set(&pf->devlink_port, vsi->netdev);
+
netif_carrier_off(vsi->netdev);
/* make sure transmit queues start off as stopped */
@@ -3224,7 +3227,7 @@ ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent)
return err;
}
- pf = devm_kzalloc(dev, sizeof(*pf), GFP_KERNEL);
+ pf = ice_allocate_pf(dev);
if (!pf)
return -ENOMEM;
@@ -3262,6 +3265,12 @@ ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent)
pf->msg_enable = netif_msg_init(debug, ICE_DFLT_NETIF_M);
+ err = ice_devlink_register(pf);
+ if (err) {
+ dev_err(dev, "ice_devlink_register failed: %d\n", err);
+ goto err_exit_unroll;
+ }
+
#ifndef CONFIG_DYNAMIC_DEBUG
if (debug < -1)
hw->debug_mask = debug;
@@ -3353,6 +3362,11 @@ ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent)
goto err_alloc_sw_unroll;
}
+ err = ice_devlink_create_port(pf);
+ if (err)
+ goto err_alloc_sw_unroll;
+
+
clear_bit(__ICE_SERVICE_DIS, pf->state);
/* tell the firmware we are up */
@@ -3422,6 +3436,7 @@ ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent)
}
}
err_alloc_sw_unroll:
+ ice_devlink_destroy_port(pf);
set_bit(__ICE_SERVICE_DIS, pf->state);
set_bit(__ICE_DOWN, pf->state);
devm_kfree(dev, pf->first_sw);
@@ -3434,6 +3449,7 @@ ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent)
ice_deinit_pf(pf);
ice_deinit_hw(hw);
err_exit_unroll:
+ ice_devlink_unregister(pf);
pci_disable_pcie_error_reporting(pdev);
return err;
}
@@ -3469,6 +3485,7 @@ static void ice_remove(struct pci_dev *pdev)
}
set_bit(__ICE_DOWN, pf->state);
+ ice_devlink_destroy_port(pf);
ice_vsi_release_all(pf);
if (ice_is_peer_ena(pf)) {
ice_for_each_peer(pf, NULL, ice_unreg_peer_device);
@@ -3482,6 +3499,8 @@ static void ice_remove(struct pci_dev *pdev)
}
ice_deinit_pf(pf);
ice_deinit_hw(&pf->hw);
+ ice_devlink_unregister(pf);
+
/* Issue a PFR as part of the prescribed driver unload flow. Do not
* do it via ice_schedule_reset() since there is no need to rebuild
* and the service task is already stopped.