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nfp: devlink add support for getting eswitch mode

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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: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2017-06-23 22:11:59 +02:00 committed by David S. Miller
parent 3fcece12bc
commit 9daee04ae1
2 changed files with 33 additions and 0 deletions
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15
drivers/net/ethernet/netronome/nfp/nfp_app.h
View file

@ -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);

18
drivers/net/ethernet/netronome/nfp/nfp_devlink.c
View file

@ -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)