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| author | Michal Kazior <michal.kazior@tieto.com> | 2014-06-25 12:35:08 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2014-06-25 18:06:20 +0200 |
| commit | 03078de4f928ffcbe629a914dea8bdf66a9d6a48 (patch) | |
| tree | a52ef5c76e459885efe13b13492434777959f670 /net/mac80211/chan.c | |
| parent | 71e6195ed2541d764fb0d7ef39cdb2236817116b (diff) | |
| download | lwn-03078de4f928ffcbe629a914dea8bdf66a9d6a48.tar.gz lwn-03078de4f928ffcbe629a914dea8bdf66a9d6a48.zip | |
mac80211: use chanctx reservation for AP CSA
Channel switch finalization is now 2-step. First
step is when driver calls csa_finish(), the other
is when reservation is actually finalized (which
can be deferred for in-place reservation).
It is now safe to call ieee80211_csa_finish() more
than once.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/chan.c')
| -rw-r--r-- | net/mac80211/chan.c | 35 |
1 files changed, 33 insertions, 2 deletions
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index 0e4302bb5b34..ea4db2f0db87 100644 --- a/net/mac80211/chan.c +++ b/net/mac80211/chan.c @@ -1056,6 +1056,30 @@ int ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata, return 0; } +static void +ieee80211_vif_chanctx_reservation_complete(struct ieee80211_sub_if_data *sdata) +{ + switch (sdata->vif.type) { + case NL80211_IFTYPE_ADHOC: + case NL80211_IFTYPE_AP: + case NL80211_IFTYPE_MESH_POINT: + ieee80211_queue_work(&sdata->local->hw, + &sdata->csa_finalize_work); + break; + case NL80211_IFTYPE_UNSPECIFIED: + case NL80211_IFTYPE_STATION: + case NL80211_IFTYPE_AP_VLAN: + case NL80211_IFTYPE_WDS: + case NL80211_IFTYPE_MONITOR: + case NL80211_IFTYPE_P2P_CLIENT: + case NL80211_IFTYPE_P2P_GO: + case NL80211_IFTYPE_P2P_DEVICE: + case NUM_NL80211_IFTYPES: + WARN_ON(1); + break; + } +} + static int ieee80211_vif_use_reserved_reassign(struct ieee80211_sub_if_data *sdata) { @@ -1103,7 +1127,7 @@ ieee80211_vif_use_reserved_reassign(struct ieee80211_sub_if_data *sdata) if (ieee80211_chanctx_refcount(local, new_ctx) == 0) ieee80211_free_chanctx(local, new_ctx); - return err; + goto out; } list_move(&sdata->assigned_chanctx_list, &new_ctx->assigned_vifs); @@ -1123,6 +1147,8 @@ ieee80211_vif_use_reserved_reassign(struct ieee80211_sub_if_data *sdata) if (changed) ieee80211_bss_info_change_notify(sdata, changed); +out: + ieee80211_vif_chanctx_reservation_complete(sdata); return err; } @@ -1167,6 +1193,7 @@ ieee80211_vif_use_reserved_assign(struct ieee80211_sub_if_data *sdata) } out: + ieee80211_vif_chanctx_reservation_complete(sdata); return err; } @@ -1480,6 +1507,8 @@ ieee80211_vif_use_reserved_switch(struct ieee80211_local *local) list_move(&sdata->assigned_chanctx_list, &new_ctx->assigned_vifs); sdata->reserved_chanctx = NULL; + + ieee80211_vif_chanctx_reservation_complete(sdata); } /* @@ -1543,8 +1572,10 @@ err: continue; list_for_each_entry_safe(sdata, sdata_tmp, &ctx->reserved_vifs, - reserved_chanctx_list) + reserved_chanctx_list) { ieee80211_vif_unreserve_chanctx(sdata); + ieee80211_vif_chanctx_reservation_complete(sdata); + } } return err; |