diff mbox series

[iwl-next,v3,4/7] ice: allocate devlink for subfunction

Message ID 20240412063053.339795-5-michal.swiatkowski@linux.intel.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series ice: support devlink subfunction | expand

Checks

Context Check Description
netdev/series_format warning Target tree name not specified in the subject
netdev/tree_selection success Guessed tree name to be net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 932 this patch: 932
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers warning 6 maintainers not CCed: pabeni@redhat.com jesse.brandeburg@intel.com kuba@kernel.org horms@kernel.org edumazet@google.com anthony.l.nguyen@intel.com
netdev/build_clang success Errors and warnings before: 938 this patch: 938
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 944 this patch: 944
netdev/checkpatch warning WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 18 this patch: 17
netdev/source_inline success Was 0 now: 0
netdev/contest success net-next-2024-04-12--09-00 (tests: 960)

Commit Message

Michal Swiatkowski April 12, 2024, 6:30 a.m. UTC 
From: Piotr Raczynski <piotr.raczynski@intel.com>

Make devlink allocation function generic to use it for PF and for SF.

Add function for SF devlink port creation. It will be used in next
patch.

Create header file for subfunction device. Define subfunction device
structure there as it is needed for devlink allocation and port
creation.

Signed-off-by: Piotr Raczynski <piotr.raczynski@intel.com>
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
---
 .../net/ethernet/intel/ice/devlink/devlink.c  | 47 ++++++++++++++---
 .../net/ethernet/intel/ice/devlink/devlink.h  |  1 +
 .../ethernet/intel/ice/devlink/devlink_port.c | 51 +++++++++++++++++++
 .../ethernet/intel/ice/devlink/devlink_port.h |  3 ++
 drivers/net/ethernet/intel/ice/ice_sf_eth.h   | 21 ++++++++
 5 files changed, 117 insertions(+), 6 deletions(-)
 create mode 100644 drivers/net/ethernet/intel/ice/ice_sf_eth.h

Comments

Jiri Pirko April 12, 2024, 7:24 a.m. UTC | #1 
Fri, Apr 12, 2024 at 08:30:50AM CEST, michal.swiatkowski@linux.intel.com wrote:
>From: Piotr Raczynski <piotr.raczynski@intel.com>
>
>Make devlink allocation function generic to use it for PF and for SF.
>
>Add function for SF devlink port creation. It will be used in next
>patch.
>
>Create header file for subfunction device. Define subfunction device
>structure there as it is needed for devlink allocation and port
>creation.
>
>Signed-off-by: Piotr Raczynski <piotr.raczynski@intel.com>
>Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
>---
> .../net/ethernet/intel/ice/devlink/devlink.c  | 47 ++++++++++++++---
> .../net/ethernet/intel/ice/devlink/devlink.h  |  1 +
> .../ethernet/intel/ice/devlink/devlink_port.c | 51 +++++++++++++++++++
> .../ethernet/intel/ice/devlink/devlink_port.h |  3 ++
> drivers/net/ethernet/intel/ice/ice_sf_eth.h   | 21 ++++++++
> 5 files changed, 117 insertions(+), 6 deletions(-)
> create mode 100644 drivers/net/ethernet/intel/ice/ice_sf_eth.h
>
>diff --git a/drivers/net/ethernet/intel/ice/devlink/devlink.c b/drivers/net/ethernet/intel/ice/devlink/devlink.c
>index 661af04c8eef..5a78bf08e731 100644
>--- a/drivers/net/ethernet/intel/ice/devlink/devlink.c
>+++ b/drivers/net/ethernet/intel/ice/devlink/devlink.c
>@@ -10,6 +10,7 @@
> #include "ice_eswitch.h"
> #include "ice_fw_update.h"
> #include "ice_dcb_lib.h"
>+#include "ice_sf_eth.h"
> 
> /* context for devlink info version reporting */
> struct ice_info_ctx {
>@@ -1286,6 +1287,8 @@ static const struct devlink_ops ice_devlink_ops = {
> 	.port_new = ice_devlink_port_new,
> };
> 
>+static const struct devlink_ops ice_sf_devlink_ops;
>+
> static int
> ice_devlink_enable_roce_get(struct devlink *devlink, u32 id,
> 			    struct devlink_param_gset_ctx *ctx)
>@@ -1417,18 +1420,23 @@ static void ice_devlink_free(void *devlink_ptr)
> }
> 
> /**
>- * ice_allocate_pf - Allocate devlink and return PF structure pointer
>+ * ice_devlink_alloc - Allocate devlink and return devlink priv pointer
>  * @dev: the device to allocate for
>+ * @priv_size: size of the priv memory
>+ * @ops: pointer to devlink ops for this device
>+ *
>+ * Allocate a devlink instance for this device and return the private pointer
>+ * The devlink memory is kept track of through devres by adding an action to
>+ * remove it when unwinding.
>  *
>- * 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.
>+ * Return: void pointer to allocated memory
>  */
>-struct ice_pf *ice_allocate_pf(struct device *dev)
>+static void *ice_devlink_alloc(struct device *dev, size_t priv_size,
>+			       const struct devlink_ops *ops)
> {
> 	struct devlink *devlink;
> 
>-	devlink = devlink_alloc(&ice_devlink_ops, sizeof(struct ice_pf), dev);
>+	devlink = devlink_alloc(ops, priv_size, dev);
> 	if (!devlink)
> 		return NULL;
> 
>@@ -1439,6 +1447,33 @@ struct ice_pf *ice_allocate_pf(struct device *dev)
> 	return devlink_priv(devlink);
> }
> 
>+/**
>+ * ice_allocate_pf - Allocate devlink and return PF structure pointer
>+ * @dev: the device to allocate for
>+ *
>+ * Allocate a devlink instance for PF.
>+ *
>+ * Return: void pointer to allocated memory
>+ */
>+struct ice_pf *ice_allocate_pf(struct device *dev)
>+{
>+	return ice_devlink_alloc(dev, sizeof(struct ice_pf), &ice_devlink_ops);
>+}
>+
>+/**
>+ * ice_allocate_sf - Allocate devlink and return SF structure pointer
>+ * @dev: the device to allocate for
>+ *
>+ * Allocate a devlink instance for SF.
>+ *
>+ * Return: void pointer to allocated memory
>+ */
>+struct ice_sf_priv *ice_allocate_sf(struct device *dev)
>+{
>+	return ice_devlink_alloc(dev, sizeof(struct ice_sf_priv),
>+				 &ice_sf_devlink_ops);
>+}
>+
> /**
>  * ice_devlink_register - Register devlink interface for this PF
>  * @pf: the PF to register the devlink for.
>diff --git a/drivers/net/ethernet/intel/ice/devlink/devlink.h b/drivers/net/ethernet/intel/ice/devlink/devlink.h
>index d291c0e2e17b..1b2a5980d5e8 100644
>--- a/drivers/net/ethernet/intel/ice/devlink/devlink.h
>+++ b/drivers/net/ethernet/intel/ice/devlink/devlink.h
>@@ -5,6 +5,7 @@
> #define _ICE_DEVLINK_H_
> 
> struct ice_pf *ice_allocate_pf(struct device *dev);
>+struct ice_sf_priv *ice_allocate_sf(struct device *dev);
> 
> void ice_devlink_register(struct ice_pf *pf);
> void ice_devlink_unregister(struct ice_pf *pf);
>diff --git a/drivers/net/ethernet/intel/ice/devlink/devlink_port.c b/drivers/net/ethernet/intel/ice/devlink/devlink_port.c
>index f5e305a71bd0..1b933083f551 100644
>--- a/drivers/net/ethernet/intel/ice/devlink/devlink_port.c
>+++ b/drivers/net/ethernet/intel/ice/devlink/devlink_port.c
>@@ -432,6 +432,57 @@ void ice_devlink_destroy_vf_port(struct ice_vf *vf)
> 	devlink_port_unregister(&vf->devlink_port);
> }
> 
>+/**
>+ * ice_devlink_create_sf_dev_port - Register virtual port for a subfunction
>+ * @sf_dev: the subfunction device to create a devlink port for
>+ *
>+ * Register virtual flavour devlink port for the subfunction auxiliary device
>+ * created after activating a dynamically added devlink port.
>+ *
>+ * Return: zero on success or an error code on failure.
>+ */
>+int ice_devlink_create_sf_dev_port(struct ice_sf_dev *sf_dev)
>+{
>+	struct devlink_port_attrs attrs = {};
>+	struct devlink_port *devlink_port;
>+	struct ice_dynamic_port *dyn_port;
>+	struct devlink *devlink;
>+	struct ice_vsi *vsi;
>+	struct device *dev;
>+	struct ice_pf *pf;
>+	int err;
>+
>+	dyn_port = sf_dev->dyn_port;
>+	vsi = dyn_port->vsi;
>+	pf = dyn_port->pf;
>+	dev = ice_pf_to_dev(pf);
>+
>+	devlink_port = &sf_dev->priv->devlink_port;
>+
>+	attrs.flavour = DEVLINK_PORT_FLAVOUR_VIRTUAL;
>+
>+	devlink_port_attrs_set(devlink_port, &attrs);
>+	devlink = priv_to_devlink(sf_dev->priv);
>+
>+	err = devl_port_register(devlink, devlink_port, vsi->idx);
>+	if (err)
>+		dev_err(dev, "Failed to create virtual devlink port for auxiliary subfunction device %d",
>+			vsi->idx);

I wonder if the value of vsi->idx is any useful to the user. I guess
he is not aware of it. Since this error happens upon user cmd active
call, the identification is pointless. User know on which object he is
working. Please remove.


>+
>+	return err;
>+}
>+
>+/**
>+ * ice_devlink_destroy_sf_dev_port - Destroy virtual port for a subfunction
>+ * @sf_dev: the subfunction device to create a devlink port for
>+ *
>+ * Unregisters the virtual port associated with this subfunction.
>+ */
>+void ice_devlink_destroy_sf_dev_port(struct ice_sf_dev *sf_dev)
>+{
>+	devl_port_unregister(&sf_dev->priv->devlink_port);
>+}
>+
> /**
>  * ice_activate_dynamic_port - Activate a dynamic port
>  * @dyn_port: dynamic port instance to activate
>diff --git a/drivers/net/ethernet/intel/ice/devlink/devlink_port.h b/drivers/net/ethernet/intel/ice/devlink/devlink_port.h
>index 30146fef64b9..1f66705e0261 100644
>--- a/drivers/net/ethernet/intel/ice/devlink/devlink_port.h
>+++ b/drivers/net/ethernet/intel/ice/devlink/devlink_port.h
>@@ -5,6 +5,7 @@
> #define _DEVLINK_PORT_H_
> 
> #include "../ice.h"
>+#include "ice_sf_eth.h"
> 
> /**
>  * struct ice_dynamic_port - Track dynamically added devlink port instance
>@@ -30,6 +31,8 @@ int ice_devlink_create_pf_port(struct ice_pf *pf);
> void ice_devlink_destroy_pf_port(struct ice_pf *pf);
> int ice_devlink_create_vf_port(struct ice_vf *vf);
> void ice_devlink_destroy_vf_port(struct ice_vf *vf);
>+int ice_devlink_create_sf_dev_port(struct ice_sf_dev *sf_dev);
>+void ice_devlink_destroy_sf_dev_port(struct ice_sf_dev *sf_dev);
> 
> #define ice_devlink_port_to_dyn(p) \
> 	container_of(port, struct ice_dynamic_port, devlink_port)
>diff --git a/drivers/net/ethernet/intel/ice/ice_sf_eth.h b/drivers/net/ethernet/intel/ice/ice_sf_eth.h
>new file mode 100644
>index 000000000000..a08f8b2bceef
>--- /dev/null
>+++ b/drivers/net/ethernet/intel/ice/ice_sf_eth.h
>@@ -0,0 +1,21 @@
>+/* SPDX-License-Identifier: GPL-2.0 */
>+/* Copyright (c) 2024, Intel Corporation. */
>+
>+#ifndef _ICE_SF_ETH_H_
>+#define _ICE_SF_ETH_H_
>+
>+#include <linux/auxiliary_bus.h>
>+#include "ice.h"
>+
>+struct ice_sf_dev {
>+	struct auxiliary_device adev;
>+	struct ice_dynamic_port *dyn_port;
>+	struct ice_sf_priv *priv;
>+};
>+
>+struct ice_sf_priv {
>+	struct ice_sf_dev *dev;
>+	struct devlink_port devlink_port;
>+};
>+
>+#endif /* _ICE_SF_ETH_H_ */
>-- 
>2.42.0
>
>
Michal Swiatkowski April 15, 2024, 8:40 a.m. UTC | #2 
On Fri, Apr 12, 2024 at 09:24:15AM +0200, Jiri Pirko wrote:
> Fri, Apr 12, 2024 at 08:30:50AM CEST, michal.swiatkowski@linux.intel.com wrote:
> >From: Piotr Raczynski <piotr.raczynski@intel.com>
> >
> >Make devlink allocation function generic to use it for PF and for SF.
> >
> >Add function for SF devlink port creation. It will be used in next
> >patch.
> >
> >Create header file for subfunction device. Define subfunction device
> >structure there as it is needed for devlink allocation and port
> >creation.
> >
> >Signed-off-by: Piotr Raczynski <piotr.raczynski@intel.com>
> >Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
> >---
> > .../net/ethernet/intel/ice/devlink/devlink.c  | 47 ++++++++++++++---
> > .../net/ethernet/intel/ice/devlink/devlink.h  |  1 +
> > .../ethernet/intel/ice/devlink/devlink_port.c | 51 +++++++++++++++++++
> > .../ethernet/intel/ice/devlink/devlink_port.h |  3 ++
> > drivers/net/ethernet/intel/ice/ice_sf_eth.h   | 21 ++++++++
> > 5 files changed, 117 insertions(+), 6 deletions(-)
> > create mode 100644 drivers/net/ethernet/intel/ice/ice_sf_eth.h
> >
> >diff --git a/drivers/net/ethernet/intel/ice/devlink/devlink.c b/drivers/net/ethernet/intel/ice/devlink/devlink.c
> >index 661af04c8eef..5a78bf08e731 100644
> >--- a/drivers/net/ethernet/intel/ice/devlink/devlink.c
> >+++ b/drivers/net/ethernet/intel/ice/devlink/devlink.c
> >@@ -10,6 +10,7 @@
> > #include "ice_eswitch.h"
> > #include "ice_fw_update.h"
> > #include "ice_dcb_lib.h"
> >+#include "ice_sf_eth.h"
> > 
> > /* context for devlink info version reporting */
> > struct ice_info_ctx {
> >@@ -1286,6 +1287,8 @@ static const struct devlink_ops ice_devlink_ops = {
> > 	.port_new = ice_devlink_port_new,
> > };
> > 
> >+static const struct devlink_ops ice_sf_devlink_ops;
> >+
> > static int
> > ice_devlink_enable_roce_get(struct devlink *devlink, u32 id,
> > 			    struct devlink_param_gset_ctx *ctx)
> >@@ -1417,18 +1420,23 @@ static void ice_devlink_free(void *devlink_ptr)
> > }
> > 
> > /**
> >- * ice_allocate_pf - Allocate devlink and return PF structure pointer
> >+ * ice_devlink_alloc - Allocate devlink and return devlink priv pointer
> >  * @dev: the device to allocate for
> >+ * @priv_size: size of the priv memory
> >+ * @ops: pointer to devlink ops for this device
> >+ *
> >+ * Allocate a devlink instance for this device and return the private pointer
> >+ * The devlink memory is kept track of through devres by adding an action to
> >+ * remove it when unwinding.
> >  *
> >- * 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.
> >+ * Return: void pointer to allocated memory
> >  */
> >-struct ice_pf *ice_allocate_pf(struct device *dev)
> >+static void *ice_devlink_alloc(struct device *dev, size_t priv_size,
> >+			       const struct devlink_ops *ops)
> > {
> > 	struct devlink *devlink;
> > 
> >-	devlink = devlink_alloc(&ice_devlink_ops, sizeof(struct ice_pf), dev);
> >+	devlink = devlink_alloc(ops, priv_size, dev);
> > 	if (!devlink)
> > 		return NULL;
> > 
> >@@ -1439,6 +1447,33 @@ struct ice_pf *ice_allocate_pf(struct device *dev)
> > 	return devlink_priv(devlink);
> > }
> > 
> >+/**
> >+ * ice_allocate_pf - Allocate devlink and return PF structure pointer
> >+ * @dev: the device to allocate for
> >+ *
> >+ * Allocate a devlink instance for PF.
> >+ *
> >+ * Return: void pointer to allocated memory
> >+ */
> >+struct ice_pf *ice_allocate_pf(struct device *dev)
> >+{
> >+	return ice_devlink_alloc(dev, sizeof(struct ice_pf), &ice_devlink_ops);
> >+}
> >+
> >+/**
> >+ * ice_allocate_sf - Allocate devlink and return SF structure pointer
> >+ * @dev: the device to allocate for
> >+ *
> >+ * Allocate a devlink instance for SF.
> >+ *
> >+ * Return: void pointer to allocated memory
> >+ */
> >+struct ice_sf_priv *ice_allocate_sf(struct device *dev)
> >+{
> >+	return ice_devlink_alloc(dev, sizeof(struct ice_sf_priv),
> >+				 &ice_sf_devlink_ops);
> >+}
> >+
> > /**
> >  * ice_devlink_register - Register devlink interface for this PF
> >  * @pf: the PF to register the devlink for.
> >diff --git a/drivers/net/ethernet/intel/ice/devlink/devlink.h b/drivers/net/ethernet/intel/ice/devlink/devlink.h
> >index d291c0e2e17b..1b2a5980d5e8 100644
> >--- a/drivers/net/ethernet/intel/ice/devlink/devlink.h
> >+++ b/drivers/net/ethernet/intel/ice/devlink/devlink.h
> >@@ -5,6 +5,7 @@
> > #define _ICE_DEVLINK_H_
> > 
> > struct ice_pf *ice_allocate_pf(struct device *dev);
> >+struct ice_sf_priv *ice_allocate_sf(struct device *dev);
> > 
> > void ice_devlink_register(struct ice_pf *pf);
> > void ice_devlink_unregister(struct ice_pf *pf);
> >diff --git a/drivers/net/ethernet/intel/ice/devlink/devlink_port.c b/drivers/net/ethernet/intel/ice/devlink/devlink_port.c
> >index f5e305a71bd0..1b933083f551 100644
> >--- a/drivers/net/ethernet/intel/ice/devlink/devlink_port.c
> >+++ b/drivers/net/ethernet/intel/ice/devlink/devlink_port.c
> >@@ -432,6 +432,57 @@ void ice_devlink_destroy_vf_port(struct ice_vf *vf)
> > 	devlink_port_unregister(&vf->devlink_port);
> > }
> > 
> >+/**
> >+ * ice_devlink_create_sf_dev_port - Register virtual port for a subfunction
> >+ * @sf_dev: the subfunction device to create a devlink port for
> >+ *
> >+ * Register virtual flavour devlink port for the subfunction auxiliary device
> >+ * created after activating a dynamically added devlink port.
> >+ *
> >+ * Return: zero on success or an error code on failure.
> >+ */
> >+int ice_devlink_create_sf_dev_port(struct ice_sf_dev *sf_dev)
> >+{
> >+	struct devlink_port_attrs attrs = {};
> >+	struct devlink_port *devlink_port;
> >+	struct ice_dynamic_port *dyn_port;
> >+	struct devlink *devlink;
> >+	struct ice_vsi *vsi;
> >+	struct device *dev;
> >+	struct ice_pf *pf;
> >+	int err;
> >+
> >+	dyn_port = sf_dev->dyn_port;
> >+	vsi = dyn_port->vsi;
> >+	pf = dyn_port->pf;
> >+	dev = ice_pf_to_dev(pf);
> >+
> >+	devlink_port = &sf_dev->priv->devlink_port;
> >+
> >+	attrs.flavour = DEVLINK_PORT_FLAVOUR_VIRTUAL;
> >+
> >+	devlink_port_attrs_set(devlink_port, &attrs);
> >+	devlink = priv_to_devlink(sf_dev->priv);
> >+
> >+	err = devl_port_register(devlink, devlink_port, vsi->idx);
> >+	if (err)
> >+		dev_err(dev, "Failed to create virtual devlink port for auxiliary subfunction device %d",
> >+			vsi->idx);
> 
> I wonder if the value of vsi->idx is any useful to the user. I guess
> he is not aware of it. Since this error happens upon user cmd active
> call, the identification is pointless. User know on which object he is
> working. Please remove.
> 
Right, will remove it.

> 
> >+
> >+	return err;
> >+}
> >+
> >+/**
> >+ * ice_devlink_destroy_sf_dev_port - Destroy virtual port for a subfunction
> >+ * @sf_dev: the subfunction device to create a devlink port for
> >+ *
> >+ * Unregisters the virtual port associated with this subfunction.
> >+ */
> >+void ice_devlink_destroy_sf_dev_port(struct ice_sf_dev *sf_dev)
> >+{
> >+	devl_port_unregister(&sf_dev->priv->devlink_port);
> >+}
> >+
> > /**
> >  * ice_activate_dynamic_port - Activate a dynamic port
> >  * @dyn_port: dynamic port instance to activate
> >diff --git a/drivers/net/ethernet/intel/ice/devlink/devlink_port.h b/drivers/net/ethernet/intel/ice/devlink/devlink_port.h
> >index 30146fef64b9..1f66705e0261 100644
> >--- a/drivers/net/ethernet/intel/ice/devlink/devlink_port.h
> >+++ b/drivers/net/ethernet/intel/ice/devlink/devlink_port.h
> >@@ -5,6 +5,7 @@
> > #define _DEVLINK_PORT_H_
> > 
> > #include "../ice.h"
> >+#include "ice_sf_eth.h"
> > 
> > /**
> >  * struct ice_dynamic_port - Track dynamically added devlink port instance
> >@@ -30,6 +31,8 @@ int ice_devlink_create_pf_port(struct ice_pf *pf);
> > void ice_devlink_destroy_pf_port(struct ice_pf *pf);
> > int ice_devlink_create_vf_port(struct ice_vf *vf);
> > void ice_devlink_destroy_vf_port(struct ice_vf *vf);
> >+int ice_devlink_create_sf_dev_port(struct ice_sf_dev *sf_dev);
> >+void ice_devlink_destroy_sf_dev_port(struct ice_sf_dev *sf_dev);
> > 
> > #define ice_devlink_port_to_dyn(p) \
> > 	container_of(port, struct ice_dynamic_port, devlink_port)
> >diff --git a/drivers/net/ethernet/intel/ice/ice_sf_eth.h b/drivers/net/ethernet/intel/ice/ice_sf_eth.h
> >new file mode 100644
> >index 000000000000..a08f8b2bceef
> >--- /dev/null
> >+++ b/drivers/net/ethernet/intel/ice/ice_sf_eth.h
> >@@ -0,0 +1,21 @@
> >+/* SPDX-License-Identifier: GPL-2.0 */
> >+/* Copyright (c) 2024, Intel Corporation. */
> >+
> >+#ifndef _ICE_SF_ETH_H_
> >+#define _ICE_SF_ETH_H_
> >+
> >+#include <linux/auxiliary_bus.h>
> >+#include "ice.h"
> >+
> >+struct ice_sf_dev {
> >+	struct auxiliary_device adev;
> >+	struct ice_dynamic_port *dyn_port;
> >+	struct ice_sf_priv *priv;
> >+};
> >+
> >+struct ice_sf_priv {
> >+	struct ice_sf_dev *dev;
> >+	struct devlink_port devlink_port;
> >+};
> >+
> >+#endif /* _ICE_SF_ETH_H_ */
> >-- 
> >2.42.0
> >
> >
diff mbox series

Patch

diff --git a/drivers/net/ethernet/intel/ice/devlink/devlink.c b/drivers/net/ethernet/intel/ice/devlink/devlink.c
index 661af04c8eef..5a78bf08e731 100644
--- a/drivers/net/ethernet/intel/ice/devlink/devlink.c
+++ b/drivers/net/ethernet/intel/ice/devlink/devlink.c
@@ -10,6 +10,7 @@ 
 #include "ice_eswitch.h"
 #include "ice_fw_update.h"
 #include "ice_dcb_lib.h"
+#include "ice_sf_eth.h"
 
 /* context for devlink info version reporting */
 struct ice_info_ctx {
@@ -1286,6 +1287,8 @@  static const struct devlink_ops ice_devlink_ops = {
 	.port_new = ice_devlink_port_new,
 };
 
+static const struct devlink_ops ice_sf_devlink_ops;
+
 static int
 ice_devlink_enable_roce_get(struct devlink *devlink, u32 id,
 			    struct devlink_param_gset_ctx *ctx)
@@ -1417,18 +1420,23 @@  static void ice_devlink_free(void *devlink_ptr)
 }
 
 /**
- * ice_allocate_pf - Allocate devlink and return PF structure pointer
+ * ice_devlink_alloc - Allocate devlink and return devlink priv pointer
  * @dev: the device to allocate for
+ * @priv_size: size of the priv memory
+ * @ops: pointer to devlink ops for this device
+ *
+ * Allocate a devlink instance for this device and return the private pointer
+ * The devlink memory is kept track of through devres by adding an action to
+ * remove it when unwinding.
  *
- * 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.
+ * Return: void pointer to allocated memory
  */
-struct ice_pf *ice_allocate_pf(struct device *dev)
+static void *ice_devlink_alloc(struct device *dev, size_t priv_size,
+			       const struct devlink_ops *ops)
 {
 	struct devlink *devlink;
 
-	devlink = devlink_alloc(&ice_devlink_ops, sizeof(struct ice_pf), dev);
+	devlink = devlink_alloc(ops, priv_size, dev);
 	if (!devlink)
 		return NULL;
 
@@ -1439,6 +1447,33 @@  struct ice_pf *ice_allocate_pf(struct device *dev)
 	return devlink_priv(devlink);
 }
 
+/**
+ * ice_allocate_pf - Allocate devlink and return PF structure pointer
+ * @dev: the device to allocate for
+ *
+ * Allocate a devlink instance for PF.
+ *
+ * Return: void pointer to allocated memory
+ */
+struct ice_pf *ice_allocate_pf(struct device *dev)
+{
+	return ice_devlink_alloc(dev, sizeof(struct ice_pf), &ice_devlink_ops);
+}
+
+/**
+ * ice_allocate_sf - Allocate devlink and return SF structure pointer
+ * @dev: the device to allocate for
+ *
+ * Allocate a devlink instance for SF.
+ *
+ * Return: void pointer to allocated memory
+ */
+struct ice_sf_priv *ice_allocate_sf(struct device *dev)
+{
+	return ice_devlink_alloc(dev, sizeof(struct ice_sf_priv),
+				 &ice_sf_devlink_ops);
+}
+
 /**
  * ice_devlink_register - Register devlink interface for this PF
  * @pf: the PF to register the devlink for.
diff --git a/drivers/net/ethernet/intel/ice/devlink/devlink.h b/drivers/net/ethernet/intel/ice/devlink/devlink.h
index d291c0e2e17b..1b2a5980d5e8 100644
--- a/drivers/net/ethernet/intel/ice/devlink/devlink.h
+++ b/drivers/net/ethernet/intel/ice/devlink/devlink.h
@@ -5,6 +5,7 @@ 
 #define _ICE_DEVLINK_H_
 
 struct ice_pf *ice_allocate_pf(struct device *dev);
+struct ice_sf_priv *ice_allocate_sf(struct device *dev);
 
 void ice_devlink_register(struct ice_pf *pf);
 void ice_devlink_unregister(struct ice_pf *pf);
diff --git a/drivers/net/ethernet/intel/ice/devlink/devlink_port.c b/drivers/net/ethernet/intel/ice/devlink/devlink_port.c
index f5e305a71bd0..1b933083f551 100644
--- a/drivers/net/ethernet/intel/ice/devlink/devlink_port.c
+++ b/drivers/net/ethernet/intel/ice/devlink/devlink_port.c
@@ -432,6 +432,57 @@  void ice_devlink_destroy_vf_port(struct ice_vf *vf)
 	devlink_port_unregister(&vf->devlink_port);
 }
 
+/**
+ * ice_devlink_create_sf_dev_port - Register virtual port for a subfunction
+ * @sf_dev: the subfunction device to create a devlink port for
+ *
+ * Register virtual flavour devlink port for the subfunction auxiliary device
+ * created after activating a dynamically added devlink port.
+ *
+ * Return: zero on success or an error code on failure.
+ */
+int ice_devlink_create_sf_dev_port(struct ice_sf_dev *sf_dev)
+{
+	struct devlink_port_attrs attrs = {};
+	struct devlink_port *devlink_port;
+	struct ice_dynamic_port *dyn_port;
+	struct devlink *devlink;
+	struct ice_vsi *vsi;
+	struct device *dev;
+	struct ice_pf *pf;
+	int err;
+
+	dyn_port = sf_dev->dyn_port;
+	vsi = dyn_port->vsi;
+	pf = dyn_port->pf;
+	dev = ice_pf_to_dev(pf);
+
+	devlink_port = &sf_dev->priv->devlink_port;
+
+	attrs.flavour = DEVLINK_PORT_FLAVOUR_VIRTUAL;
+
+	devlink_port_attrs_set(devlink_port, &attrs);
+	devlink = priv_to_devlink(sf_dev->priv);
+
+	err = devl_port_register(devlink, devlink_port, vsi->idx);
+	if (err)
+		dev_err(dev, "Failed to create virtual devlink port for auxiliary subfunction device %d",
+			vsi->idx);
+
+	return err;
+}
+
+/**
+ * ice_devlink_destroy_sf_dev_port - Destroy virtual port for a subfunction
+ * @sf_dev: the subfunction device to create a devlink port for
+ *
+ * Unregisters the virtual port associated with this subfunction.
+ */
+void ice_devlink_destroy_sf_dev_port(struct ice_sf_dev *sf_dev)
+{
+	devl_port_unregister(&sf_dev->priv->devlink_port);
+}
+
 /**
  * ice_activate_dynamic_port - Activate a dynamic port
  * @dyn_port: dynamic port instance to activate
diff --git a/drivers/net/ethernet/intel/ice/devlink/devlink_port.h b/drivers/net/ethernet/intel/ice/devlink/devlink_port.h
index 30146fef64b9..1f66705e0261 100644
--- a/drivers/net/ethernet/intel/ice/devlink/devlink_port.h
+++ b/drivers/net/ethernet/intel/ice/devlink/devlink_port.h
@@ -5,6 +5,7 @@ 
 #define _DEVLINK_PORT_H_
 
 #include "../ice.h"
+#include "ice_sf_eth.h"
 
 /**
  * struct ice_dynamic_port - Track dynamically added devlink port instance
@@ -30,6 +31,8 @@  int ice_devlink_create_pf_port(struct ice_pf *pf);
 void ice_devlink_destroy_pf_port(struct ice_pf *pf);
 int ice_devlink_create_vf_port(struct ice_vf *vf);
 void ice_devlink_destroy_vf_port(struct ice_vf *vf);
+int ice_devlink_create_sf_dev_port(struct ice_sf_dev *sf_dev);
+void ice_devlink_destroy_sf_dev_port(struct ice_sf_dev *sf_dev);
 
 #define ice_devlink_port_to_dyn(p) \
 	container_of(port, struct ice_dynamic_port, devlink_port)
diff --git a/drivers/net/ethernet/intel/ice/ice_sf_eth.h b/drivers/net/ethernet/intel/ice/ice_sf_eth.h
new file mode 100644
index 000000000000..a08f8b2bceef
--- /dev/null
+++ b/drivers/net/ethernet/intel/ice/ice_sf_eth.h
@@ -0,0 +1,21 @@ 
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2024, Intel Corporation. */
+
+#ifndef _ICE_SF_ETH_H_
+#define _ICE_SF_ETH_H_
+
+#include <linux/auxiliary_bus.h>
+#include "ice.h"
+
+struct ice_sf_dev {
+	struct auxiliary_device adev;
+	struct ice_dynamic_port *dyn_port;
+	struct ice_sf_priv *priv;
+};
+
+struct ice_sf_priv {
+	struct ice_sf_dev *dev;
+	struct devlink_port devlink_port;
+};
+
+#endif /* _ICE_SF_ETH_H_ */