From 856d5a011c86b59f6564be4508912fb1d866adfc Mon Sep 17 00:00:00 2001 From: Arend Van Spriel Date: Thu, 22 Mar 2018 21:28:23 +0100 Subject: [PATCH] brcmfmac: allocate struct brcmf_pub instance using wiphy_new() Rework the driver so the wiphy instance holds the main driver information in its private buffer. Previously it held struct brcmf_cfg80211_info instance so a bit of reorg was needed. This was done so that the wiphy name or its parent device can be shown in debug output. Reviewed-by: Hante Meuleman Reviewed-by: Pieter-Paul Giesberts Reviewed-by: Franky Lin Signed-off-by: Arend van Spriel Signed-off-by: Kalle Valo --- .../wireless/broadcom/brcm80211/brcmfmac/btcoex.c | 2 +- .../broadcom/brcm80211/brcmfmac/cfg80211.c | 86 ++++++++++------------ .../broadcom/brcm80211/brcmfmac/cfg80211.h | 17 +++-- .../wireless/broadcom/brcm80211/brcmfmac/common.c | 2 + .../wireless/broadcom/brcm80211/brcmfmac/core.c | 27 +++++-- .../wireless/broadcom/brcm80211/brcmfmac/core.h | 1 + .../net/wireless/broadcom/brcm80211/brcmfmac/p2p.c | 2 +- 7 files changed, 76 insertions(+), 61 deletions(-) --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/btcoex.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/btcoex.c @@ -464,7 +464,7 @@ static void brcmf_btcoex_dhcp_end(struct int brcmf_btcoex_set_mode(struct brcmf_cfg80211_vif *vif, enum brcmf_btcoex_mode mode, u16 duration) { - struct brcmf_cfg80211_info *cfg = wiphy_priv(vif->wdev.wiphy); + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(vif->wdev.wiphy); struct brcmf_btcoex_info *btci = cfg->btcoex; struct brcmf_if *ifp = brcmf_get_ifp(cfg->pub, 0); --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c @@ -783,7 +783,7 @@ s32 brcmf_notify_escan_complete(struct b static int brcmf_cfg80211_del_ap_iface(struct wiphy *wiphy, struct wireless_dev *wdev) { - struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); struct net_device *ndev = wdev->netdev; struct brcmf_if *ifp = netdev_priv(ndev); int ret; @@ -816,7 +816,7 @@ err_unarm: static int brcmf_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) { - struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); struct net_device *ndev = wdev->netdev; if (ndev && ndev == cfg_to_ndev(cfg)) @@ -861,7 +861,7 @@ brcmf_cfg80211_change_iface(struct wiphy enum nl80211_iftype type, u32 *flags, struct vif_params *params) { - struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); struct brcmf_if *ifp = netdev_priv(ndev); struct brcmf_cfg80211_vif *vif = ifp->vif; s32 infra = 0; @@ -2175,17 +2175,15 @@ static s32 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, s32 *dbm) { - struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); - struct net_device *ndev = cfg_to_ndev(cfg); - struct brcmf_if *ifp = netdev_priv(ndev); + struct brcmf_cfg80211_vif *vif = wdev_to_vif(wdev); s32 qdbm = 0; s32 err; brcmf_dbg(TRACE, "Enter\n"); - if (!check_vif_up(ifp->vif)) + if (!check_vif_up(vif)) return -EIO; - err = brcmf_fil_iovar_int_get(ifp, "qtxpower", &qdbm); + err = brcmf_fil_iovar_int_get(vif->ifp, "qtxpower", &qdbm); if (err) { brcmf_err("error (%d)\n", err); goto done; @@ -3398,7 +3396,7 @@ brcmf_cfg80211_sched_scan_start(struct w struct cfg80211_sched_scan_request *req) { struct brcmf_if *ifp = netdev_priv(ndev); - struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); brcmf_dbg(SCAN, "Enter n_match_sets:%d n_ssids:%d\n", req->n_match_sets, req->n_ssids); @@ -5192,6 +5190,12 @@ static struct cfg80211_ops brcmf_cfg8021 .update_connect_params = brcmf_cfg80211_update_conn_params, }; +struct cfg80211_ops *brcmf_cfg80211_get_ops(void) +{ + return kmemdup(&brcmf_cfg80211_ops, sizeof(brcmf_cfg80211_ops), + GFP_KERNEL); +} + struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg, enum nl80211_iftype type) { @@ -5866,7 +5870,7 @@ static void brcmf_update_bw40_channel_fl static int brcmf_construct_chaninfo(struct brcmf_cfg80211_info *cfg, u32 bw_cap[]) { - struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); + struct brcmf_if *ifp = brcmf_get_ifp(cfg->pub, 0); struct ieee80211_supported_band *band; struct ieee80211_channel *channel; struct wiphy *wiphy; @@ -5981,7 +5985,7 @@ fail_pbuf: static int brcmf_enable_bw40_2g(struct brcmf_cfg80211_info *cfg) { - struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); + struct brcmf_if *ifp = brcmf_get_ifp(cfg->pub, 0); struct ieee80211_supported_band *band; struct brcmf_fil_bwcap_le band_bwcap; struct brcmf_chanspec_list *list; @@ -6166,10 +6170,10 @@ static void brcmf_update_vht_cap(struct } } -static int brcmf_setup_wiphybands(struct wiphy *wiphy) +static int brcmf_setup_wiphybands(struct brcmf_cfg80211_info *cfg) { - struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); - struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); + struct brcmf_if *ifp = brcmf_get_ifp(cfg->pub, 0); + struct wiphy *wiphy; u32 nmode = 0; u32 vhtmode = 0; u32 bw_cap[2] = { WLC_BW_20MHZ_BIT, WLC_BW_20MHZ_BIT }; @@ -6765,8 +6769,8 @@ static s32 brcmf_translate_country_code( static void brcmf_cfg80211_reg_notifier(struct wiphy *wiphy, struct regulatory_request *req) { - struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); - struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); + struct brcmf_if *ifp = brcmf_get_ifp(cfg->pub, 0); struct brcmf_fil_country_le ccreq; s32 err; int i; @@ -6801,7 +6805,7 @@ static void brcmf_cfg80211_reg_notifier( brcmf_err("Firmware rejected country setting\n"); return; } - brcmf_setup_wiphybands(wiphy); + brcmf_setup_wiphybands(cfg); } static void brcmf_free_wiphy(struct wiphy *wiphy) @@ -6828,17 +6832,15 @@ static void brcmf_free_wiphy(struct wiph if (wiphy->wowlan != &brcmf_wowlan_support) kfree(wiphy->wowlan); #endif - wiphy_free(wiphy); } struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr, - struct device *busdev, + struct cfg80211_ops *ops, bool p2pdev_forced) { + struct wiphy *wiphy = drvr->wiphy; struct net_device *ndev = brcmf_get_ifp(drvr, 0)->ndev; struct brcmf_cfg80211_info *cfg; - struct wiphy *wiphy; - struct cfg80211_ops *ops; struct brcmf_cfg80211_vif *vif; struct brcmf_if *ifp; s32 err = 0; @@ -6850,26 +6852,13 @@ struct brcmf_cfg80211_info *brcmf_cfg802 return NULL; } - ops = kmemdup(&brcmf_cfg80211_ops, sizeof(*ops), GFP_KERNEL); - if (!ops) - return NULL; - - ifp = netdev_priv(ndev); -#ifdef CONFIG_PM - if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_GTK)) - ops->set_rekey_data = brcmf_cfg80211_set_rekey_data; -#endif - wiphy = wiphy_new(ops, sizeof(struct brcmf_cfg80211_info)); - if (!wiphy) { + cfg = kzalloc(sizeof(*cfg), GFP_KERNEL); + if (!cfg) { brcmf_err("Could not allocate wiphy device\n"); - goto ops_out; + return NULL; } - memcpy(wiphy->perm_addr, drvr->mac, ETH_ALEN); - set_wiphy_dev(wiphy, busdev); - cfg = wiphy_priv(wiphy); cfg->wiphy = wiphy; - cfg->ops = ops; cfg->pub = drvr; init_vif_event(&cfg->vif_event); INIT_LIST_HEAD(&cfg->vif_list); @@ -6878,6 +6867,7 @@ struct brcmf_cfg80211_info *brcmf_cfg802 if (IS_ERR(vif)) goto wiphy_out; + ifp = netdev_priv(ndev); vif->ifp = ifp; vif->wdev.netdev = ndev; ndev->ieee80211_ptr = &vif->wdev; @@ -6904,6 +6894,11 @@ struct brcmf_cfg80211_info *brcmf_cfg802 if (err < 0) goto priv_out; + /* regulatory notifer below needs access to cfg so + * assign it now. + */ + drvr->config = cfg; + brcmf_dbg(INFO, "Registering custom regulatory\n"); wiphy->reg_notifier = brcmf_cfg80211_reg_notifier; wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG; @@ -6917,13 +6912,17 @@ struct brcmf_cfg80211_info *brcmf_cfg802 cap = &wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.cap; *cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; } +#ifdef CONFIG_PM + if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_GTK)) + ops->set_rekey_data = brcmf_cfg80211_set_rekey_data; +#endif err = wiphy_register(wiphy); if (err < 0) { brcmf_err("Could not register wiphy device (%d)\n", err); goto priv_out; } - err = brcmf_setup_wiphybands(wiphy); + err = brcmf_setup_wiphybands(cfg); if (err) { brcmf_err("Setting wiphy bands failed (%d)\n", err); goto wiphy_unreg_out; @@ -6940,12 +6939,7 @@ struct brcmf_cfg80211_info *brcmf_cfg802 else *cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; } - /* p2p might require that "if-events" get processed by fweh. So - * activate the already registered event handlers now and activate - * the rest when initialization has completed. drvr->config needs to - * be assigned before activating events. - */ - drvr->config = cfg; + err = brcmf_fweh_activate_events(ifp); if (err) { brcmf_err("FWEH activation failed (%d)\n", err); @@ -7005,8 +6999,7 @@ priv_out: ifp->vif = NULL; wiphy_out: brcmf_free_wiphy(wiphy); -ops_out: - kfree(ops); + kfree(cfg); return NULL; } @@ -7017,7 +7010,8 @@ void brcmf_cfg80211_detach(struct brcmf_ brcmf_btcoex_detach(cfg); wiphy_unregister(cfg->wiphy); - kfree(cfg->ops); + kfree(cfg->pub->cfg80211_ops); wl_deinit_priv(cfg); brcmf_free_wiphy(cfg->wiphy); + kfree(cfg); } --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h @@ -290,7 +290,7 @@ struct brcmf_cfg80211_wowl { */ struct brcmf_cfg80211_info { struct wiphy *wiphy; - struct cfg80211_ops *ops; +// struct cfg80211_ops *ops; /* OpenWrt keeps it in the struct brcmf_pub */ struct brcmf_cfg80211_conf *conf; struct brcmf_p2p_info p2p; struct brcmf_btcoex_info *btcoex; @@ -342,20 +342,24 @@ static inline struct wiphy *cfg_to_wiphy static inline struct brcmf_cfg80211_info *wiphy_to_cfg(struct wiphy *w) { - return (struct brcmf_cfg80211_info *)(wiphy_priv(w)); + struct brcmf_pub *drvr = wiphy_priv(w); + return drvr->config; } static inline struct brcmf_cfg80211_info *wdev_to_cfg(struct wireless_dev *wd) { - return (struct brcmf_cfg80211_info *)(wdev_priv(wd)); + return wiphy_to_cfg(wd->wiphy); +} + +static inline struct brcmf_cfg80211_vif *wdev_to_vif(struct wireless_dev *wdev) +{ + return container_of(wdev, struct brcmf_cfg80211_vif, wdev); } static inline struct net_device *cfg_to_ndev(struct brcmf_cfg80211_info *cfg) { - struct brcmf_cfg80211_vif *vif; - vif = list_first_entry(&cfg->vif_list, struct brcmf_cfg80211_vif, list); - return vif->wdev.netdev; + return brcmf_get_ifp(cfg->pub, 0)->ndev; } static inline struct brcmf_cfg80211_info *ndev_to_cfg(struct net_device *ndev) @@ -382,11 +386,12 @@ brcmf_cfg80211_connect_info *cfg_to_conn } struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr, - struct device *busdev, + struct cfg80211_ops *ops, bool p2pdev_forced); void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg); s32 brcmf_cfg80211_up(struct net_device *ndev); s32 brcmf_cfg80211_down(struct net_device *ndev); +struct cfg80211_ops *brcmf_cfg80211_get_ops(void); enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp); struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg, --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c @@ -124,6 +124,7 @@ int brcmf_c_preinit_dcmds(struct brcmf_i brcmf_err("Retreiving cur_etheraddr failed, %d\n", err); goto done; } + memcpy(ifp->drvr->wiphy->perm_addr, ifp->drvr->mac, ETH_ALEN); memcpy(ifp->drvr->mac, ifp->mac_addr, sizeof(ifp->drvr->mac)); err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_REVINFO, --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c @@ -1008,7 +1008,7 @@ int brcmf_bus_started(struct device *dev brcmf_proto_add_if(drvr, ifp); - drvr->config = brcmf_cfg80211_attach(drvr, bus_if->dev, + drvr->config = brcmf_cfg80211_attach(drvr, drvr->cfg80211_ops, drvr->settings->p2p_enable); if (drvr->config == NULL) { ret = -ENOMEM; @@ -1063,17 +1063,26 @@ fail: int brcmf_attach(struct device *dev, struct brcmf_mp_device *settings) { + struct wiphy *wiphy; + struct cfg80211_ops *ops; struct brcmf_pub *drvr = NULL; int ret = 0; int i; brcmf_dbg(TRACE, "Enter\n"); - /* Allocate primary brcmf_info */ - drvr = kzalloc(sizeof(*drvr), GFP_ATOMIC); - if (!drvr) + ops = brcmf_cfg80211_get_ops(); + if (!ops) return -ENOMEM; + wiphy = wiphy_new(ops, sizeof(*drvr)); + if (!wiphy) + return -ENOMEM; + + set_wiphy_dev(wiphy, dev); + drvr = wiphy_priv(wiphy); + drvr->wiphy = wiphy; + for (i = 0; i < ARRAY_SIZE(drvr->if2bss); i++) drvr->if2bss[i] = BRCMF_BSSIDX_INVALID; @@ -1102,10 +1111,12 @@ int brcmf_attach(struct device *dev, str /* attach firmware event handler */ brcmf_fweh_attach(drvr); + drvr->cfg80211_ops = ops; return ret; fail: brcmf_detach(dev); + kfree(ops); return ret; } @@ -1163,6 +1174,7 @@ void brcmf_detach(struct device *dev) brcmf_remove_interface(drvr->iflist[i], false); brcmf_cfg80211_detach(drvr->config); + drvr->config = NULL; brcmf_bus_stop(drvr->bus_if); @@ -1170,7 +1182,7 @@ void brcmf_detach(struct device *dev) brcmf_debug_detach(drvr); bus_if->drvr = NULL; - kfree(drvr); + wiphy_free(drvr->wiphy); } s32 brcmf_iovar_data_set(struct device *dev, char *name, void *data, u32 len) --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h @@ -108,6 +108,7 @@ struct brcmf_pub { /* Linkage ponters */ struct brcmf_bus *bus_if; struct brcmf_proto *proto; + struct wiphy *wiphy; struct brcmf_cfg80211_info *config; /* Internal brcmf items */ @@ -141,6 +142,9 @@ struct brcmf_pub { struct notifier_block inetaddr_notifier; struct notifier_block inet6addr_notifier; struct brcmf_mp_device *settings; + + /* Pointer needed by OpenWrt due to backporting some fixes */ + void *cfg80211_ops; }; /* forward declarations */ --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c @@ -2236,7 +2236,7 @@ fail: */ int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev) { - struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); struct brcmf_p2p_info *p2p = &cfg->p2p; struct brcmf_cfg80211_vif *vif; enum nl80211_iftype iftype;