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Commit 9daee04a authored by Jakub Kicinski's avatar Jakub Kicinski Committed by David S. Miller
Browse files

nfp: devlink add support for getting eswitch mode 



Add app callback for reporting eswitch mode.  Non-SRIOV apps
should not implement this callback, nfp_app code will then
respond with -EOPNOTSUPP.

Signed-off-by: default avatarJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: default avatarSimon Horman <simon.horman@netronome.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 3fcece12

drivers/net/ethernet/netronome/nfp/nfp_app.h

+15 −0
Original line number Diff line number Diff line
@@ -34,6 +34,8 @@ 
#ifndef _NFP_APP_H

#define _NFP_APP_H 1



#include <net/devlink.h>



struct bpf_prog;

struct net_device;

struct pci_dev;
@@ -70,6 +72,7 @@ extern const struct nfp_app_type app_bpf; 
 * @setup_tc:	setup TC ndo

 * @tc_busy:	TC HW offload busy (rules loaded)

 * @xdp_offload:    offload an XDP program

 * @eswitch_mode_get:    get SR-IOV eswitch mode

 */

struct nfp_app_type {

	enum nfp_app_id id;
@@ -95,6 +98,8 @@ struct nfp_app_type { 
	bool (*tc_busy)(struct nfp_app *app, struct nfp_net *nn);

	int (*xdp_offload)(struct nfp_app *app, struct nfp_net *nn,

			   struct bpf_prog *prog);



	enum devlink_eswitch_mode (*eswitch_mode_get)(struct nfp_app *app);

};



/**
@@ -216,6 +221,16 @@ static inline void nfp_app_ctrl_rx(struct nfp_app *app, struct sk_buff *skb) 
	app->type->ctrl_msg_rx(app, skb);

}



static inline int nfp_app_eswitch_mode_get(struct nfp_app *app, u16 *mode)

{

	if (!app->type->eswitch_mode_get)

		return -EOPNOTSUPP;



	*mode = app->type->eswitch_mode_get(app);



	return 0;

}



const char *nfp_app_mip_name(struct nfp_app *app);

struct sk_buff *nfp_app_ctrl_msg_alloc(struct nfp_app *app, unsigned int size);

drivers/net/ethernet/netronome/nfp/nfp_devlink.c

+18 −0
Original line number Diff line number Diff line
@@ -149,9 +149,27 @@ nfp_devlink_port_unsplit(struct devlink *devlink, unsigned int port_index) 
	return ret;

}



static int nfp_devlink_eswitch_mode_get(struct devlink *devlink, u16 *mode)

{

	struct nfp_pf *pf = devlink_priv(devlink);

	int ret;



	mutex_lock(&pf->lock);

	if (!pf->app) {

		ret = -EBUSY;

		goto out;

	}

	ret = nfp_app_eswitch_mode_get(pf->app, mode);

out:

	mutex_unlock(&pf->lock);



	return ret;

}



const struct devlink_ops nfp_devlink_ops = {

	.port_split		= nfp_devlink_port_split,

	.port_unsplit		= nfp_devlink_port_unsplit,

	.eswitch_mode_get	= nfp_devlink_eswitch_mode_get,

};



int nfp_devlink_port_register(struct nfp_app *app, struct nfp_port *port)