From 9daee04ae17fb886008ba222fe8150fcc1d0d8cb Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Fri, 23 Jun 2017 22:11:59 +0200 Subject: [PATCH] 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: Jakub Kicinski Signed-off-by: Simon Horman Signed-off-by: David S. Miller --- drivers/net/ethernet/netronome/nfp/nfp_app.h | 15 +++++++++++++++ .../net/ethernet/netronome/nfp/nfp_devlink.c | 18 ++++++++++++++++++ 2 files changed, 33 insertions(+) diff --git a/drivers/net/ethernet/netronome/nfp/nfp_app.h b/drivers/net/ethernet/netronome/nfp/nfp_app.h index f5e373fa8c3b..0fee14ffa081 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_app.h +++ b/drivers/net/ethernet/netronome/nfp/nfp_app.h @@ -34,6 +34,8 @@ #ifndef _NFP_APP_H #define _NFP_APP_H 1 +#include + 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); diff --git a/drivers/net/ethernet/netronome/nfp/nfp_devlink.c b/drivers/net/ethernet/netronome/nfp/nfp_devlink.c index 2609a0f28e81..6c9f29c2e975 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_devlink.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_devlink.c @@ -149,9 +149,27 @@ out: 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) -- 2.30.2