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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 <jakub.kicinski@netronome.com> Signed-off-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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2 changed files with 33 additions and 0 deletions
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@ -34,6 +34,8 @@
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#ifndef _NFP_APP_H
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#define _NFP_APP_H 1
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#include <net/devlink.h>
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struct bpf_prog;
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struct net_device;
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struct pci_dev;
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@ -70,6 +72,7 @@ extern const struct nfp_app_type app_bpf;
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* @setup_tc: setup TC ndo
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* @tc_busy: TC HW offload busy (rules loaded)
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* @xdp_offload: offload an XDP program
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* @eswitch_mode_get: get SR-IOV eswitch mode
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*/
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struct nfp_app_type {
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enum nfp_app_id id;
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@ -95,6 +98,8 @@ struct nfp_app_type {
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bool (*tc_busy)(struct nfp_app *app, struct nfp_net *nn);
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int (*xdp_offload)(struct nfp_app *app, struct nfp_net *nn,
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struct bpf_prog *prog);
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enum devlink_eswitch_mode (*eswitch_mode_get)(struct nfp_app *app);
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};
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/**
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@ -216,6 +221,16 @@ static inline void nfp_app_ctrl_rx(struct nfp_app *app, struct sk_buff *skb)
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app->type->ctrl_msg_rx(app, skb);
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}
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static inline int nfp_app_eswitch_mode_get(struct nfp_app *app, u16 *mode)
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{
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if (!app->type->eswitch_mode_get)
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return -EOPNOTSUPP;
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*mode = app->type->eswitch_mode_get(app);
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return 0;
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}
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const char *nfp_app_mip_name(struct nfp_app *app);
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struct sk_buff *nfp_app_ctrl_msg_alloc(struct nfp_app *app, unsigned int size);
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@ -149,9 +149,27 @@ nfp_devlink_port_unsplit(struct devlink *devlink, unsigned int port_index)
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return ret;
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}
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static int nfp_devlink_eswitch_mode_get(struct devlink *devlink, u16 *mode)
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{
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struct nfp_pf *pf = devlink_priv(devlink);
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int ret;
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mutex_lock(&pf->lock);
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if (!pf->app) {
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ret = -EBUSY;
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goto out;
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}
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ret = nfp_app_eswitch_mode_get(pf->app, mode);
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out:
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mutex_unlock(&pf->lock);
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return ret;
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}
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const struct devlink_ops nfp_devlink_ops = {
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.port_split = nfp_devlink_port_split,
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.port_unsplit = nfp_devlink_port_unsplit,
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.eswitch_mode_get = nfp_devlink_eswitch_mode_get,
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};
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int nfp_devlink_port_register(struct nfp_app *app, struct nfp_port *port)
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