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mac80211: introduce new ieee80211_ops

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Introduce channel context driver methods. The channel
on a context channel is immutable, but the channel type
and other properties can change.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Michal Kazior 2012-06-26 14:37:17 +02:00 committed by Johannes Berg
parent d01a1e6586
commit c3645eac47
3 changed files with 196 additions and 0 deletions
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24
include/net/mac80211.h
View File

@ -2353,6 +2353,16 @@ enum ieee80211_rate_control_changed {
* The callback will be called before each transmission and upon return
* mac80211 will transmit the frame right away.
* The callback is optional and can (should!) sleep.
*
* @add_chanctx: Notifies device driver about new channel context creation.
* @remove_chanctx: Notifies device driver about channel context destruction.
* @change_chanctx: Notifies device driver about channel context changes that
* may happen when combining different virtual interfaces on the same
* channel context with different settings
* @assign_vif_chanctx: Notifies device driver about channel context being bound
* to vif. Possible use is for hw queue remapping.
* @unassign_vif_chanctx: Notifies device driver about channel context being
* unbound from vif.
*/
struct ieee80211_ops {
void (*tx)(struct ieee80211_hw *hw,
@ -2497,6 +2507,20 @@ struct ieee80211_ops {
void (*mgd_prepare_tx)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif);
int (*add_chanctx)(struct ieee80211_hw *hw,
struct ieee80211_chanctx_conf *ctx);
void (*remove_chanctx)(struct ieee80211_hw *hw,
struct ieee80211_chanctx_conf *ctx);
void (*change_chanctx)(struct ieee80211_hw *hw,
struct ieee80211_chanctx_conf *ctx,
u32 changed);
int (*assign_vif_chanctx)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_chanctx_conf *ctx);
void (*unassign_vif_chanctx)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_chanctx_conf *ctx);
};
/**

65
net/mac80211/driver-ops.h
View File

@ -871,4 +871,69 @@ static inline void drv_mgd_prepare_tx(struct ieee80211_local *local,
local->ops->mgd_prepare_tx(&local->hw, &sdata->vif);
trace_drv_return_void(local);
}
static inline int drv_add_chanctx(struct ieee80211_local *local,
struct ieee80211_chanctx *ctx)
{
int ret = -EOPNOTSUPP;
trace_drv_add_chanctx(local, ctx);
if (local->ops->add_chanctx)
ret = local->ops->add_chanctx(&local->hw, &ctx->conf);
trace_drv_return_int(local, ret);
return ret;
}
static inline void drv_remove_chanctx(struct ieee80211_local *local,
struct ieee80211_chanctx *ctx)
{
trace_drv_remove_chanctx(local, ctx);
if (local->ops->remove_chanctx)
local->ops->remove_chanctx(&local->hw, &ctx->conf);
trace_drv_return_void(local);
}
static inline void drv_change_chanctx(struct ieee80211_local *local,
struct ieee80211_chanctx *ctx,
u32 changed)
{
trace_drv_change_chanctx(local, ctx, changed);
if (local->ops->change_chanctx)
local->ops->change_chanctx(&local->hw, &ctx->conf, changed);
trace_drv_return_void(local);
}
static inline int drv_assign_vif_chanctx(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
struct ieee80211_chanctx *ctx)
{
int ret = 0;
check_sdata_in_driver(sdata);
trace_drv_assign_vif_chanctx(local, sdata, ctx);
if (local->ops->assign_vif_chanctx)
ret = local->ops->assign_vif_chanctx(&local->hw,
&sdata->vif,
&ctx->conf);
trace_drv_return_int(local, ret);
return ret;
}
static inline void drv_unassign_vif_chanctx(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
struct ieee80211_chanctx *ctx)
{
check_sdata_in_driver(sdata);
trace_drv_unassign_vif_chanctx(local, sdata, ctx);
if (local->ops->unassign_vif_chanctx)
local->ops->unassign_vif_chanctx(&local->hw,
&sdata->vif,
&ctx->conf);
trace_drv_return_void(local);
}
#endif /* __MAC80211_DRIVER_OPS */

107
net/mac80211/trace.h
View File

@ -28,6 +28,15 @@
#define VIF_PR_FMT " vif:%s(%d%s)"
#define VIF_PR_ARG __get_str(vif_name), __entry->vif_type, __entry->p2p ? "/p2p" : ""
#define CHANCTX_ENTRY __field(int, freq) \
__field(int, chantype)
#define CHANCTX_ASSIGN __entry->freq = ctx->conf.channel->center_freq; \
__entry->chantype = ctx->conf.channel_type
#define CHANCTX_PR_FMT " freq:%d MHz chantype:%d"
#define CHANCTX_PR_ARG __entry->freq, __entry->chantype
/*
* Tracing for driver callbacks.
*/
@ -1256,6 +1265,104 @@ DEFINE_EVENT(local_sdata_evt, drv_mgd_prepare_tx,
TP_ARGS(local, sdata)
);
DECLARE_EVENT_CLASS(local_chanctx,
TP_PROTO(struct ieee80211_local *local,
struct ieee80211_chanctx *ctx),
TP_ARGS(local, ctx),
TP_STRUCT__entry(
LOCAL_ENTRY
CHANCTX_ENTRY
),
TP_fast_assign(
LOCAL_ASSIGN;
CHANCTX_ASSIGN;
),
TP_printk(
LOCAL_PR_FMT CHANCTX_PR_FMT,
LOCAL_PR_ARG, CHANCTX_PR_ARG
)
);
DEFINE_EVENT(local_chanctx, drv_add_chanctx,
TP_PROTO(struct ieee80211_local *local,
struct ieee80211_chanctx *ctx),
TP_ARGS(local, ctx)
);
DEFINE_EVENT(local_chanctx, drv_remove_chanctx,
TP_PROTO(struct ieee80211_local *local,
struct ieee80211_chanctx *ctx),
TP_ARGS(local, ctx)
);
TRACE_EVENT(drv_change_chanctx,
TP_PROTO(struct ieee80211_local *local,
struct ieee80211_chanctx *ctx,
u32 changed),
TP_ARGS(local, ctx, changed),
TP_STRUCT__entry(
LOCAL_ENTRY
CHANCTX_ENTRY
__field(u32, changed)
),
TP_fast_assign(
LOCAL_ASSIGN;
CHANCTX_ASSIGN;
__entry->changed = changed;
),
TP_printk(
LOCAL_PR_FMT CHANCTX_PR_FMT " changed:%#x",
LOCAL_PR_ARG, CHANCTX_PR_ARG, __entry->changed
)
);
DECLARE_EVENT_CLASS(local_sdata_chanctx,
TP_PROTO(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
struct ieee80211_chanctx *ctx),
TP_ARGS(local, sdata, ctx),
TP_STRUCT__entry(
LOCAL_ENTRY
VIF_ENTRY
CHANCTX_ENTRY
),
TP_fast_assign(
LOCAL_ASSIGN;
VIF_ASSIGN;
CHANCTX_ASSIGN;
),
TP_printk(
LOCAL_PR_FMT VIF_PR_FMT CHANCTX_PR_FMT,
LOCAL_PR_ARG, VIF_PR_ARG, CHANCTX_PR_ARG
)
);
DEFINE_EVENT(local_sdata_chanctx, drv_assign_vif_chanctx,
TP_PROTO(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
struct ieee80211_chanctx *ctx),
TP_ARGS(local, sdata, ctx)
);
DEFINE_EVENT(local_sdata_chanctx, drv_unassign_vif_chanctx,
TP_PROTO(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
struct ieee80211_chanctx *ctx),
TP_ARGS(local, sdata, ctx)
);
/*
* Tracing for API calls that drivers call.
*/