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| author |   Simon Horman <simon.horman@netronome.com> | 2017-06-23 22:12:02 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-06-25 11:42:01 -0400 |
| commit | 5de73ee46704c22097e46bfc276a05360d3a1ba7 (patch) | |
| tree | 5ee94c086aa3733a34dfbe0f0bd597c2703947d7 /drivers/net/ethernet/netronome/nfp/nfp_app.c | |
| parent | nfp: map mac_stats and vf_cfg BARs (diff) | |
| download | linux-dev-5de73ee46704c22097e46bfc276a05360d3a1ba7.tar.xz linux-dev-5de73ee46704c22097e46bfc276a05360d3a1ba7.zip | |
nfp: general representor implementation
Provide infrastructure to create and destroy representors of a given type.
Parts based on work by Bert van Leeuwen, Benjamin LaHaise,
and Jakub Kicinski.
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/nfp_app.c')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_app.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_app.c b/drivers/net/ethernet/netronome/nfp/nfp_app.c index 396b93f54823..c9ccb0f94604 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_app.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_app.c @@ -38,6 +38,7 @@ #include "nfpcore/nfp_nffw.h" #include "nfp_app.h" #include "nfp_main.h" +#include "nfp_net_repr.h" static const struct nfp_app_type *apps[] = { &app_nic, @@ -68,6 +69,25 @@ struct sk_buff *nfp_app_ctrl_msg_alloc(struct nfp_app *app, unsigned int size) return skb; } +struct nfp_reprs * +nfp_app_reprs_set(struct nfp_app *app, enum nfp_repr_type type, + struct nfp_reprs *reprs) +{ + struct nfp_reprs *old; + + old = rcu_dereference_protected(app->reprs[type], + lockdep_is_held(&app->pf->lock)); + if (reprs && old) { + old = ERR_PTR(-EBUSY); + goto exit_unlock; + } + + rcu_assign_pointer(app->reprs[type], reprs); + +exit_unlock: + return old; +} + struct nfp_app *nfp_app_alloc(struct nfp_pf *pf, enum nfp_app_id id) { struct nfp_app *app; |