diff mbox series

[iwl-next,v1,4/7] ice: allocate devlink for subfunction

Message ID 20240408103049.19445-5-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State Superseded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 fail Errors and warnings before: 942 this patch: 24
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers warning 6 maintainers not CCed: pabeni@redhat.com kuba@kernel.org anthony.l.nguyen@intel.com jesse.brandeburg@intel.com edumazet@google.com horms@kernel.org
netdev/build_clang fail Errors and warnings before: 953 this patch: 28
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 fail Errors and warnings before: 953 this patch: 24
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 145 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc fail Errors and warnings before: 18 this patch: 20
netdev/source_inline success Was 0 now: 0

Commit Message

Michal Swiatkowski April 8, 2024, 10:30 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.

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  | 39 ++++++++++++--
 .../net/ethernet/intel/ice/devlink/devlink.h  |  1 +
 .../ethernet/intel/ice/devlink/devlink_port.c | 51 +++++++++++++++++++
 .../ethernet/intel/ice/devlink/devlink_port.h |  3 ++
 4 files changed, 89 insertions(+), 5 deletions(-)

Comments

Mateusz Polchlopek April 9, 2024, 8:34 a.m. UTC | #1
On 4/8/2024 12:30 PM, Michal Swiatkowski 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.
> 
> 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  | 39 ++++++++++++--
>   .../net/ethernet/intel/ice/devlink/devlink.h  |  1 +
>   .../ethernet/intel/ice/devlink/devlink_port.c | 51 +++++++++++++++++++
>   .../ethernet/intel/ice/devlink/devlink_port.h |  3 ++
>   4 files changed, 89 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/net/ethernet/intel/ice/devlink/devlink.c b/drivers/net/ethernet/intel/ice/devlink/devlink.c
> index 661af04c8eef..05a752fec316 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)
> @@ -1417,14 +1420,17 @@ 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 area as
> - * the PF structure. 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 pointer
> + * 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)
> +static void *ice_devlink_alloc(struct device *dev, size_t priv_size,
> +			       const struct devlink_ops *ops)

Why do we need priv_size and ops if those are not used in the function?
Shouldn't it be line:

devlink = devlink_alloc(&ice_devlink_ops, sizeof(struct ice_pf), dev);

in ice_devlink_alloc changed to take the passed param?


>   {
>   	struct devlink *devlink;
>   
> @@ -1439,6 +1445,29 @@ 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.
> + */
> +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.
> + */
> +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)
Michal Swiatkowski April 9, 2024, 1:44 p.m. UTC | #2
On Tue, Apr 09, 2024 at 10:34:27AM +0200, Mateusz Polchlopek wrote:
> 
> 
> On 4/8/2024 12:30 PM, Michal Swiatkowski 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.
> > 
> > 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  | 39 ++++++++++++--
> >   .../net/ethernet/intel/ice/devlink/devlink.h  |  1 +
> >   .../ethernet/intel/ice/devlink/devlink_port.c | 51 +++++++++++++++++++
> >   .../ethernet/intel/ice/devlink/devlink_port.h |  3 ++
> >   4 files changed, 89 insertions(+), 5 deletions(-)
> > 
> > diff --git a/drivers/net/ethernet/intel/ice/devlink/devlink.c b/drivers/net/ethernet/intel/ice/devlink/devlink.c
> > index 661af04c8eef..05a752fec316 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)
> > @@ -1417,14 +1420,17 @@ 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 area as
> > - * the PF structure. 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 pointer
> > + * 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)
> > +static void *ice_devlink_alloc(struct device *dev, size_t priv_size,
> > +			       const struct devlink_ops *ops)
> 
> Why do we need priv_size and ops if those are not used in the function?
> Shouldn't it be line:
> 
> devlink = devlink_alloc(&ice_devlink_ops, sizeof(struct ice_pf), dev);
> 
> in ice_devlink_alloc changed to take the passed param?
> 
> 

Right, it is an error. I will fix it in v2. Thanks for pointing it.

Michal

> >   {
> >   	struct devlink *devlink;
> > @@ -1439,6 +1445,29 @@ 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.
> > + */
> > +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.
> > + */
> > +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 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..05a752fec316 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)
@@ -1417,14 +1420,17 @@  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 area as
- * the PF structure. 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 pointer
+ * 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)
+static void *ice_devlink_alloc(struct device *dev, size_t priv_size,
+			       const struct devlink_ops *ops)
 {
 	struct devlink *devlink;
 
@@ -1439,6 +1445,29 @@  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.
+ */
+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.
+ */
+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)