From patchwork Fri Feb 16 08:04:39 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maya Erez X-Patchwork-Id: 10224161 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 5C5526055C for ; Fri, 16 Feb 2018 08:13:56 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 489C529446 for ; Fri, 16 Feb 2018 08:13:56 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3D24829441; Fri, 16 Feb 2018 08:13:56 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3153C29441 for ; Fri, 16 Feb 2018 08:13:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754029AbeBPINx (ORCPT ); Fri, 16 Feb 2018 03:13:53 -0500 Received: from alexa-out-ams-01.qualcomm.com ([185.23.61.162]:49963 "EHLO alexa-out-ams-01.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753998AbeBPINi (ORCPT ); Fri, 16 Feb 2018 03:13:38 -0500 X-Greylist: delayed 468 seconds by postgrey-1.27 at vger.kernel.org; Fri, 16 Feb 2018 03:13:31 EST X-IronPort-AV: E=Sophos;i="5.39,1,1493708400"; d="scan'208";a="5643" Received: from ironmsg02-ams.qualcomm.com ([10.251.56.3]) by alexa-out-ams-01.qualcomm.com with ESMTP; 16 Feb 2018 08:59:14 +0100 X-IronPort-AV: E=McAfee;i="5900,7806,8806"; a="325551" X-MGA-submission: =?us-ascii?q?MDE8IusY05edVCgKJ4WKj5kGma0FStP6poSWSN?= =?us-ascii?q?MvvVTscc7l6qDHe4Zy8LbVbbNgwkgUp3liRl2runSL1w/RnumWKS5CAO?= =?us-ascii?q?YXEAVziV1JYwPIXZROa0gcFqXnxcBjq5cwsO1PuoXfURn3kfB3WpYCof?= =?us-ascii?q?wi?= Received: from lx-merez1.mea.qualcomm.com ([10.18.173.103]) by ironmsg02-ams.qualcomm.com with ESMTP; 16 Feb 2018 09:04:49 +0100 From: Maya Erez To: Kalle Valo Cc: Lior David , linux-wireless@vger.kernel.org, wil6210@qti.qualcomm.com, Maya Erez Subject: [PATCH 4/8] wil6210: add support for adding and removing virtual interfaces Date: Fri, 16 Feb 2018 10:04:39 +0200 Message-Id: <1518768283-2318-5-git-send-email-merez@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1518768283-2318-1-git-send-email-merez@codeaurora.org> References: <1518768283-2318-1-git-send-email-merez@codeaurora.org> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Lior David Add generic support in cfg80211 operations add_virtual_intf and del_virtual_intf for adding/removing VIFs of any interface type, and fix change_virtual_intf to allow changing the interface type of a VIF. Previously these operations only worked for the P2P_DEVICE interface which is not a real VIF(it is management-only and shares radio with the main interface). Currently the interface combination is validated, the VIF is added/removed in the firmware and the appropriate net/wireless device is also added/removed. Added minimal support for proper interface up/down and module unload but most operations still work only on the main interface. Signed-off-by: Lior David Signed-off-by: Maya Erez --- drivers/net/wireless/ath/wil6210/cfg80211.c | 209 ++++++++++++++++++++++++---- drivers/net/wireless/ath/wil6210/main.c | 34 +++++ drivers/net/wireless/ath/wil6210/netdev.c | 163 +++++++++++++++++++--- drivers/net/wireless/ath/wil6210/pcie_bus.c | 39 +++++- drivers/net/wireless/ath/wil6210/wil6210.h | 21 ++- drivers/net/wireless/ath/wil6210/wmi.c | 111 ++++++++++++++- 6 files changed, 518 insertions(+), 59 deletions(-) diff --git a/drivers/net/wireless/ath/wil6210/cfg80211.c b/drivers/net/wireless/ath/wil6210/cfg80211.c index 3dea118..b9103bd 100644 --- a/drivers/net/wireless/ath/wil6210/cfg80211.c +++ b/drivers/net/wireless/ath/wil6210/cfg80211.c @@ -18,6 +18,7 @@ #include #include #include +#include #include "wil6210.h" #include "wmi.h" #include "fw.h" @@ -418,6 +419,53 @@ static void wil_cfg80211_stop_p2p_device(struct wiphy *wiphy, mutex_unlock(&wil->mutex); } +static int wil_cfg80211_validate_add_iface(struct wil6210_priv *wil, + enum nl80211_iftype new_type) +{ + int i; + struct wireless_dev *wdev; + struct iface_combination_params params = { + .num_different_channels = 1, + }; + + for (i = 0; i < wil->max_vifs; i++) { + if (wil->vifs[i]) { + wdev = vif_to_wdev(wil->vifs[i]); + params.iftype_num[wdev->iftype]++; + } + } + params.iftype_num[new_type]++; + return cfg80211_check_combinations(wil->wiphy, ¶ms); +} + +static int wil_cfg80211_validate_change_iface(struct wil6210_priv *wil, + struct wil6210_vif *vif, + enum nl80211_iftype new_type) +{ + int i, ret = 0; + struct wireless_dev *wdev; + struct iface_combination_params params = { + .num_different_channels = 1, + }; + bool check_combos = false; + + for (i = 0; i < wil->max_vifs; i++) { + struct wil6210_vif *vif_pos = wil->vifs[i]; + + if (vif_pos && vif != vif_pos) { + wdev = vif_to_wdev(vif_pos); + params.iftype_num[wdev->iftype]++; + check_combos = true; + } + } + + if (check_combos) { + params.iftype_num[new_type]++; + ret = cfg80211_check_combinations(wil->wiphy, ¶ms); + } + return ret; +} + static struct wireless_dev * wil_cfg80211_add_iface(struct wiphy *wiphy, const char *name, unsigned char name_assign_type, @@ -425,53 +473,136 @@ static void wil_cfg80211_stop_p2p_device(struct wiphy *wiphy, struct vif_params *params) { struct wil6210_priv *wil = wiphy_to_wil(wiphy); - struct net_device *ndev = wil->main_ndev; + struct net_device *ndev_main = wil->main_ndev, *ndev; struct wil6210_vif *vif; - struct wireless_dev *p2p_wdev; + struct wireless_dev *p2p_wdev, *wdev; + int rc; - wil_dbg_misc(wil, "add_iface\n"); + wil_dbg_misc(wil, "add_iface, type %d\n", type); - if (type != NL80211_IFTYPE_P2P_DEVICE) { - wil_err(wil, "unsupported iftype %d\n", type); - return ERR_PTR(-EINVAL); + /* P2P device is not a real virtual interface, it is a management-only + * interface that shares the main interface. + * Skip concurrency checks here. + */ + if (type == NL80211_IFTYPE_P2P_DEVICE) { + if (wil->p2p_wdev) { + wil_err(wil, "P2P_DEVICE interface already created\n"); + return ERR_PTR(-EINVAL); + } + + vif = kzalloc(sizeof(*vif), GFP_KERNEL); + if (!vif) + return ERR_PTR(-ENOMEM); + + p2p_wdev = vif_to_wdev(vif); + p2p_wdev->iftype = type; + p2p_wdev->wiphy = wiphy; + /* use our primary ethernet address */ + ether_addr_copy(p2p_wdev->address, ndev_main->perm_addr); + + wil->p2p_wdev = p2p_wdev; + + return p2p_wdev; } - if (wil->p2p_wdev) { - wil_err(wil, "P2P_DEVICE interface already created\n"); + if (!wil->wiphy->n_iface_combinations) { + wil_err(wil, "virtual interfaces not supported\n"); return ERR_PTR(-EINVAL); } - vif = kzalloc(sizeof(*vif), GFP_KERNEL); - if (!vif) - return ERR_PTR(-ENOMEM); + rc = wil_cfg80211_validate_add_iface(wil, type); + if (rc) { + wil_err(wil, "iface validation failed, err=%d\n", rc); + return ERR_PTR(rc); + } - p2p_wdev = &vif->wdev; - p2p_wdev->iftype = type; - p2p_wdev->wiphy = wiphy; - /* use our primary ethernet address */ - ether_addr_copy(p2p_wdev->address, ndev->perm_addr); + vif = wil_vif_alloc(wil, name, name_assign_type, type); + if (IS_ERR(vif)) + return ERR_CAST(vif); - wil->p2p_wdev = p2p_wdev; + ndev = vif_to_ndev(vif); + ether_addr_copy(ndev->perm_addr, ndev_main->perm_addr); + if (is_valid_ether_addr(params->macaddr)) { + ether_addr_copy(ndev->dev_addr, params->macaddr); + } else { + ether_addr_copy(ndev->dev_addr, ndev_main->perm_addr); + ndev->dev_addr[0] = (ndev->dev_addr[0] ^ (1 << vif->mid)) | + 0x2; /* locally administered */ + } + wdev = vif_to_wdev(vif); + ether_addr_copy(wdev->address, ndev->dev_addr); + + rc = wil_vif_add(wil, vif); + if (rc) + goto out; - return p2p_wdev; + wil_info(wil, "added VIF, mid %d iftype %d MAC %pM\n", + vif->mid, type, wdev->address); + return wdev; +out: + wil_vif_free(vif); + return ERR_PTR(rc); +} + +int wil_vif_prepare_stop(struct wil6210_priv *wil, struct wil6210_vif *vif) +{ + struct wireless_dev *wdev = vif_to_wdev(vif); + struct net_device *ndev; + int rc; + + if (wdev->iftype != NL80211_IFTYPE_AP) + return 0; + + ndev = vif_to_ndev(vif); + if (netif_carrier_ok(ndev)) { + rc = wmi_pcp_stop(vif); + if (rc) { + wil_info(wil, "failed to stop AP, status %d\n", + rc); + /* continue */ + } + netif_carrier_off(ndev); + } + + return 0; } static int wil_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) { struct wil6210_priv *wil = wiphy_to_wil(wiphy); + struct wil6210_vif *vif = wdev_to_vif(wil, wdev); + int rc; wil_dbg_misc(wil, "del_iface\n"); - if (wdev != wil->p2p_wdev) { - wil_err(wil, "delete of incorrect interface 0x%p\n", wdev); + if (wdev->iftype == NL80211_IFTYPE_P2P_DEVICE) { + if (wdev != wil->p2p_wdev) { + wil_err(wil, "delete of incorrect interface 0x%p\n", + wdev); + return -EINVAL; + } + + wil_cfg80211_stop_p2p_device(wiphy, wdev); + wil_p2p_wdev_free(wil); + return 0; + } + + if (vif->mid == 0) { + wil_err(wil, "cannot remove the main interface\n"); return -EINVAL; } - wil_cfg80211_stop_p2p_device(wiphy, wdev); - wil_p2p_wdev_free(wil); + rc = wil_vif_prepare_stop(wil, vif); + if (rc) + goto out; - return 0; + wil_info(wil, "deleted VIF, mid %d iftype %d MAC %pM\n", + vif->mid, wdev->iftype, wdev->address); + + wil_vif_remove(wil, vif->mid); +out: + return rc; } static int wil_cfg80211_change_iface(struct wiphy *wiphy, @@ -486,7 +617,19 @@ static int wil_cfg80211_change_iface(struct wiphy *wiphy, wil_dbg_misc(wil, "change_iface: type=%d\n", type); - if (netif_running(ndev) && !wil_is_recovery_blocked(wil)) { + if (wiphy->n_iface_combinations) { + rc = wil_cfg80211_validate_change_iface(wil, vif, type); + if (rc) { + wil_err(wil, "iface validation failed, err=%d\n", rc); + return rc; + } + } + + /* do not reset FW when there are active VIFs, + * because it can cause significant disruption + */ + if (!wil_has_other_up_ifaces(wil, ndev) && + netif_running(ndev) && !wil_is_recovery_blocked(wil)) { wil_dbg_misc(wil, "interface is up. resetting...\n"); mutex_lock(&wil->mutex); __wil_down(wil); @@ -511,8 +654,17 @@ static int wil_cfg80211_change_iface(struct wiphy *wiphy, return -EOPNOTSUPP; } - wdev->iftype = type; + if (vif->mid != 0 && wil_has_up_ifaces(wil)) { + wil_vif_prepare_stop(wil, vif); + rc = wmi_port_delete(wil, vif->mid); + if (rc) + return rc; + rc = wmi_port_allocate(wil, vif->mid, ndev->dev_addr, type); + if (rc) + return rc; + } + wdev->iftype = type; return 0; } @@ -2006,6 +2158,13 @@ int wil_cfg80211_iface_combinations_from_fw( combo = (struct wil_fw_concurrency_combo *)limit; } + wil_dbg_misc(wil, "multiple VIFs supported, n_mids %d\n", conc->n_mids); + wil->max_vifs = conc->n_mids + 1; /* including main interface */ + if (wil->max_vifs > WIL_MAX_VIFS) { + wil_info(wil, "limited number of VIFs supported(%d, FW %d)\n", + WIL_MAX_VIFS, wil->max_vifs); + wil->max_vifs = WIL_MAX_VIFS; + } wiphy->n_iface_combinations = n_combos; wiphy->iface_combinations = iface_combinations; return 0; diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c index ef4b44d..32319b7 100644 --- a/drivers/net/wireless/ath/wil6210/main.c +++ b/drivers/net/wireless/ath/wil6210/main.c @@ -565,6 +565,7 @@ int wil_priv_init(struct wil6210_priv *wil) wil->vring_idle_trsh = 16; wil->reply_mid = U8_MAX; + wil->max_vifs = 1; return 0; @@ -1115,6 +1116,33 @@ static void wil_pre_fw_config(struct wil6210_priv *wil) } } +static int wil_restore_vifs(struct wil6210_priv *wil) +{ + struct wil6210_vif *vif; + struct net_device *ndev; + struct wireless_dev *wdev; + int i, rc; + + for (i = 0; i < wil->max_vifs; i++) { + vif = wil->vifs[i]; + if (!vif) + continue; + if (vif->mid) { + ndev = vif_to_ndev(vif); + wdev = vif_to_wdev(vif); + rc = wmi_port_allocate(wil, vif->mid, ndev->dev_addr, + wdev->iftype); + if (rc) { + wil_err(wil, "fail to restore VIF %d type %d, rc %d\n", + i, wdev->iftype, rc); + return rc; + } + } + } + + return 0; +} + /* * We reset all the structures, and we reset the UMAC. * After calling this routine, you're expected to reload @@ -1277,6 +1305,12 @@ int wil_reset(struct wil6210_priv *wil, bool load_fw) return rc; } + rc = wil_restore_vifs(wil); + if (rc) { + wil_err(wil, "failed to restore vifs, rc %d\n", rc); + return rc; + } + wil_collect_fw_info(wil); if (wil->ps_profile != WMI_PS_PROFILE_TYPE_DEFAULT) diff --git a/drivers/net/wireless/ath/wil6210/netdev.c b/drivers/net/wireless/ath/wil6210/netdev.c index 95570b8..e23a80c 100644 --- a/drivers/net/wireless/ath/wil6210/netdev.c +++ b/drivers/net/wireless/ath/wil6210/netdev.c @@ -16,13 +16,38 @@ */ #include +#include #include "wil6210.h" #include "txrx.h" +bool wil_has_other_up_ifaces(struct wil6210_priv *wil, + struct net_device *ndev) +{ + int i; + struct wil6210_vif *vif; + struct net_device *ndev_i; + + for (i = 0; i < wil->max_vifs; i++) { + vif = wil->vifs[i]; + if (vif) { + ndev_i = vif_to_ndev(vif); + if (ndev_i != ndev && ndev_i->flags & IFF_UP) + return true; + } + } + + return false; +} + +bool wil_has_up_ifaces(struct wil6210_priv *wil) +{ + return wil_has_other_up_ifaces(wil, NULL); +} + static int wil_open(struct net_device *ndev) { struct wil6210_priv *wil = ndev_to_wil(ndev); - int rc; + int rc = 0; wil_dbg_misc(wil, "open\n"); @@ -32,13 +57,16 @@ static int wil_open(struct net_device *ndev) return -EINVAL; } - rc = wil_pm_runtime_get(wil); - if (rc < 0) - return rc; + if (!wil_has_other_up_ifaces(wil, ndev)) { + wil_dbg_misc(wil, "open, first iface\n"); + rc = wil_pm_runtime_get(wil); + if (rc < 0) + return rc; - rc = wil_up(wil); - if (rc) - wil_pm_runtime_put(wil); + rc = wil_up(wil); + if (rc) + wil_pm_runtime_put(wil); + } return rc; } @@ -46,13 +74,16 @@ static int wil_open(struct net_device *ndev) static int wil_stop(struct net_device *ndev) { struct wil6210_priv *wil = ndev_to_wil(ndev); - int rc; + int rc = 0; wil_dbg_misc(wil, "stop\n"); - rc = wil_down(wil); - if (!rc) - wil_pm_runtime_put(wil); + if (!wil_has_other_up_ifaces(wil, ndev)) { + wil_dbg_misc(wil, "stop, last iface\n"); + rc = wil_down(wil); + if (!rc) + wil_pm_runtime_put(wil); + } return rc; } @@ -201,14 +232,32 @@ static void wil_vif_init(struct wil6210_vif *vif) INIT_LIST_HEAD(&vif->probe_client_pending); } +static u8 wil_vif_find_free_mid(struct wil6210_priv *wil) +{ + u8 i; + + for (i = 0; i < wil->max_vifs; i++) { + if (!wil->vifs[i]) + return i; + } + + return U8_MAX; +} + struct wil6210_vif * wil_vif_alloc(struct wil6210_priv *wil, const char *name, - unsigned char name_assign_type, enum nl80211_iftype iftype, - u8 mid) + unsigned char name_assign_type, enum nl80211_iftype iftype) { struct net_device *ndev; struct wireless_dev *wdev; struct wil6210_vif *vif; + u8 mid; + + mid = wil_vif_find_free_mid(wil); + if (mid == U8_MAX) { + wil_err(wil, "no available virtual interface\n"); + return ERR_PTR(-EINVAL); + } ndev = alloc_netdev(sizeof(*vif), name, name_assign_type, wil_dev_setup); @@ -216,8 +265,13 @@ struct wil6210_vif * dev_err(wil_to_dev(wil), "alloc_netdev failed\n"); return ERR_PTR(-ENOMEM); } - if (mid == 0) + if (mid == 0) { wil->main_ndev = ndev; + } else { + ndev->priv_destructor = wil_ndev_destructor; + ndev->needs_free_netdev = true; + } + vif = ndev_to_vif(ndev); vif->ndev = ndev; vif->wil = wil; @@ -263,7 +317,7 @@ void *wil_if_alloc(struct device *dev) wil_dbg_misc(wil, "if_alloc\n"); vif = wil_vif_alloc(wil, "wlan%d", NET_NAME_UNKNOWN, - NL80211_IFTYPE_STATION, 0); + NL80211_IFTYPE_STATION); if (IS_ERR(vif)) { dev_err(dev, "wil_vif_alloc failed\n"); rc = -ENOMEM; @@ -301,10 +355,43 @@ void wil_if_free(struct wil6210_priv *wil) wil_cfg80211_deinit(wil); } +int wil_vif_add(struct wil6210_priv *wil, struct wil6210_vif *vif) +{ + struct net_device *ndev = vif_to_ndev(vif); + struct wireless_dev *wdev = vif_to_wdev(vif); + bool any_active = wil_has_up_ifaces(wil); + int rc; + + ASSERT_RTNL(); + + if (wil->vifs[vif->mid]) { + dev_err(&ndev->dev, "VIF with mid %d already in use\n", + vif->mid); + return -EEXIST; + } + if (any_active && vif->mid != 0) { + rc = wmi_port_allocate(wil, vif->mid, ndev->dev_addr, + wdev->iftype); + if (rc) + return rc; + } + rc = register_netdevice(ndev); + if (rc < 0) { + dev_err(&ndev->dev, "Failed to register netdev: %d\n", rc); + if (any_active && vif->mid != 0) + wmi_port_delete(wil, vif->mid); + return rc; + } + + wil->vifs[vif->mid] = vif; + return 0; +} + int wil_if_add(struct wil6210_priv *wil) { struct wiphy *wiphy = wil->wiphy; struct net_device *ndev = wil->main_ndev; + struct wil6210_vif *vif = ndev_to_vif(ndev); int rc; wil_dbg_misc(wil, "entered"); @@ -324,11 +411,11 @@ int wil_if_add(struct wil6210_priv *wil) wil_update_net_queues_bh(wil, NULL, true); - rc = register_netdev(ndev); - if (rc < 0) { - dev_err(&ndev->dev, "Failed to register netdev: %d\n", rc); + rtnl_lock(); + rc = wil_vif_add(wil, vif); + rtnl_unlock(); + if (rc < 0) goto out_wiphy; - } return 0; @@ -337,6 +424,40 @@ int wil_if_add(struct wil6210_priv *wil) return rc; } +void wil_vif_remove(struct wil6210_priv *wil, u8 mid) +{ + struct wil6210_vif *vif; + struct net_device *ndev; + bool any_active = wil_has_up_ifaces(wil); + + ASSERT_RTNL(); + if (mid >= wil->max_vifs) { + wil_err(wil, "invalid MID: %d\n", mid); + return; + } + + vif = wil->vifs[mid]; + if (!vif) { + wil_err(wil, "MID %d not registered\n", mid); + return; + } + + ndev = vif_to_ndev(vif); + /* during unregister_netdevice cfg80211_leave may perform operations + * such as stop AP, disconnect, so we only clear the VIF afterwards + */ + unregister_netdevice(ndev); + + if (any_active && vif->mid != 0) + wmi_port_delete(wil, vif->mid); + + wil->vifs[mid] = NULL; + /* for VIFs, ndev will be freed by destructor after RTNL is unlocked. + * the main interface will be freed in wil_if_free, we need to keep it + * a bit longer so logging macros will work. + */ +} + void wil_if_remove(struct wil6210_priv *wil) { struct net_device *ndev = wil->main_ndev; @@ -344,6 +465,8 @@ void wil_if_remove(struct wil6210_priv *wil) wil_dbg_misc(wil, "if_remove\n"); - unregister_netdev(ndev); + rtnl_lock(); + wil_vif_remove(wil, 0); + rtnl_unlock(); wiphy_unregister(wdev->wiphy); } diff --git a/drivers/net/wireless/ath/wil6210/pcie_bus.c b/drivers/net/wireless/ath/wil6210/pcie_bus.c index a61ffd9..1fd7614 100644 --- a/drivers/net/wireless/ath/wil6210/pcie_bus.c +++ b/drivers/net/wireless/ath/wil6210/pcie_bus.c @@ -137,6 +137,20 @@ void wil_enable_irq(struct wil6210_priv *wil) enable_irq(wil->pdev->irq); } +static void wil_remove_all_additional_vifs(struct wil6210_priv *wil) +{ + struct wil6210_vif *vif; + int i; + + for (i = 1; i < wil->max_vifs; i++) { + vif = wil->vifs[i]; + if (vif) { + wil_vif_prepare_stop(wil, vif); + wil_vif_remove(wil, vif->mid); + } + } +} + /* Bus ops */ static int wil_if_pcie_enable(struct wil6210_priv *wil) { @@ -148,10 +162,8 @@ static int wil_if_pcie_enable(struct wil6210_priv *wil) */ int msi_only = pdev->msi_enabled; bool _use_msi = use_msi; - bool wmi_only = test_bit(WMI_FW_CAPABILITY_WMI_ONLY, - wil->fw_capabilities); - wil_dbg_misc(wil, "if_pcie_enable, wmi_only %d\n", wmi_only); + wil_dbg_misc(wil, "if_pcie_enable\n"); pci_set_master(pdev); @@ -172,11 +184,9 @@ static int wil_if_pcie_enable(struct wil6210_priv *wil) if (rc) goto stop_master; - /* need reset here to obtain MAC or in case of WMI-only FW, full reset - * and fw loading takes place - */ + /* need reset here to obtain MAC */ mutex_lock(&wil->mutex); - rc = wil_reset(wil, wmi_only); + rc = wil_reset(wil, false); mutex_unlock(&wil->mutex); if (rc) goto release_irq; @@ -356,6 +366,18 @@ static int wil_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id) goto bus_disable; } + /* in case of WMI-only FW, perform full reset and FW loading */ + if (test_bit(WMI_FW_CAPABILITY_WMI_ONLY, wil->fw_capabilities)) { + wil_dbg_misc(wil, "Loading WMI only FW\n"); + mutex_lock(&wil->mutex); + rc = wil_reset(wil, true); + mutex_unlock(&wil->mutex); + if (rc) { + wil_err(wil, "failed to load WMI only FW\n"); + goto if_remove; + } + } + if (IS_ENABLED(CONFIG_PM)) wil->pm_notify.notifier_call = wil6210_pm_notify; @@ -372,6 +394,8 @@ static int wil_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id) return 0; +if_remove: + wil_if_remove(wil); bus_disable: wil_if_pcie_disable(wil); err_iounmap: @@ -402,6 +426,7 @@ static void wil_pcie_remove(struct pci_dev *pdev) wil6210_debugfs_remove(wil); rtnl_lock(); wil_p2p_wdev_free(wil); + wil_remove_all_additional_vifs(wil); rtnl_unlock(); wil_if_remove(wil); wil_if_pcie_disable(wil); diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h index fa8df41..8ab4b5a 100644 --- a/drivers/net/wireless/ath/wil6210/wil6210.h +++ b/drivers/net/wireless/ath/wil6210/wil6210.h @@ -50,6 +50,11 @@ #define WIL_DEFAULT_BUS_REQUEST_KBPS 128000 /* ~1Gbps */ #define WIL_MAX_BUS_REQUEST_KBPS 800000 /* ~6.1Gbps */ +/* maximum number of virtual interfaces the driver supports + * (including the main interface) + */ +#define WIL_MAX_VIFS 4 + /** * extract bits [@b0:@b1] (inclusive) from the value @x * it should be @b0 <= @b1, or result is incorrect @@ -714,11 +719,12 @@ struct wil6210_priv { DECLARE_BITMAP(hw_capa, hw_capa_last); DECLARE_BITMAP(fw_capabilities, WMI_FW_CAPABILITY_MAX); DECLARE_BITMAP(platform_capa, WIL_PLATFORM_CAPA_MAX); - u8 n_mids; /* number of additional MIDs as reported by FW */ u32 recovery_count; /* num of FW recovery attempts in a short time */ u32 recovery_state; /* FW recovery state machine */ unsigned long last_fw_recovery; /* jiffies of last fw recovery */ wait_queue_head_t wq; /* for all wait_event() use */ + u8 max_vifs; /* maximum number of interfaces, including main */ + struct wil6210_vif *vifs[WIL_MAX_VIFS]; /* profile */ struct cfg80211_chan_def monitor_chandef; u32 monitor_flags; @@ -935,11 +941,16 @@ void wil_memcpy_toio_32(volatile void __iomem *dst, const void *src, struct wil6210_vif * wil_vif_alloc(struct wil6210_priv *wil, const char *name, - unsigned char name_assign_type, enum nl80211_iftype iftype, - u8 mid); + unsigned char name_assign_type, enum nl80211_iftype iftype); +void wil_vif_free(struct wil6210_vif *vif); void *wil_if_alloc(struct device *dev); +bool wil_has_other_up_ifaces(struct wil6210_priv *wil, + struct net_device *ndev); +bool wil_has_up_ifaces(struct wil6210_priv *wil); void wil_if_free(struct wil6210_priv *wil); +int wil_vif_add(struct wil6210_priv *wil, struct wil6210_vif *vif); int wil_if_add(struct wil6210_priv *wil); +void wil_vif_remove(struct wil6210_priv *wil, u8 mid); void wil_if_remove(struct wil6210_priv *wil); int wil_priv_init(struct wil6210_priv *wil); void wil_priv_deinit(struct wil6210_priv *wil); @@ -998,6 +1009,9 @@ int wmi_ps_dev_profile_cfg(struct wil6210_priv *wil, int wmi_set_mgmt_retry(struct wil6210_priv *wil, u8 retry_short); int wmi_get_mgmt_retry(struct wil6210_priv *wil, u8 *retry_short); int wmi_new_sta(struct wil6210_vif *vif, const u8 *mac, u8 aid); +int wmi_port_allocate(struct wil6210_priv *wil, u8 mid, + const u8 *mac, enum nl80211_iftype iftype); +int wmi_port_delete(struct wil6210_priv *wil, u8 mid); int wil_addba_rx_request(struct wil6210_priv *wil, u8 mid, u8 cidxtid, u8 dialog_token, __le16 ba_param_set, __le16 ba_timeout, __le16 ba_seq_ctrl); @@ -1039,6 +1053,7 @@ int wil_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, int wil_cfg80211_iface_combinations_from_fw( struct wil6210_priv *wil, const struct wil_fw_record_concurrency *conc); +int wil_vif_prepare_stop(struct wil6210_priv *wil, struct wil6210_vif *vif); #if defined(CONFIG_WIL6210_DEBUGFS) int wil6210_debugfs_init(struct wil6210_priv *wil); diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c index 044d698..23c28bf 100644 --- a/drivers/net/wireless/ath/wil6210/wmi.c +++ b/drivers/net/wireless/ath/wil6210/wmi.c @@ -656,11 +656,14 @@ static void wmi_evt_ready(struct wil6210_vif *vif, int id, void *d, int len) struct wiphy *wiphy = wil_to_wiphy(wil); struct wmi_ready_event *evt = d; - wil->n_mids = evt->numof_additional_mids; - wil_info(wil, "FW ver. %s(SW %d); MAC %pM; %d MID's\n", wil->fw_version, le32_to_cpu(evt->sw_version), - evt->mac, wil->n_mids); + evt->mac, evt->numof_additional_mids); + if (evt->numof_additional_mids + 1 < wil->max_vifs) { + wil_err(wil, "FW does not support enough MIDs (need %d)", + wil->max_vifs - 1); + return; /* FW load will fail after timeout */ + } /* ignore MAC address, we already have it from the boot loader */ strlcpy(wiphy->fw_version, wil->fw_version, sizeof(wiphy->fw_version)); @@ -2372,6 +2375,92 @@ int wmi_resume(struct wil6210_priv *wil) return reply.evt.status; } +int wmi_port_allocate(struct wil6210_priv *wil, u8 mid, + const u8 *mac, enum nl80211_iftype iftype) +{ + int rc; + struct wmi_port_allocate_cmd cmd = { + .mid = mid, + }; + struct { + struct wmi_cmd_hdr wmi; + struct wmi_port_allocated_event evt; + } __packed reply; + + wil_dbg_misc(wil, "port allocate, mid %d iftype %d, mac %pM\n", + mid, iftype, mac); + + ether_addr_copy(cmd.mac, mac); + switch (iftype) { + case NL80211_IFTYPE_STATION: + cmd.port_role = WMI_PORT_STA; + break; + case NL80211_IFTYPE_AP: + cmd.port_role = WMI_PORT_AP; + break; + case NL80211_IFTYPE_P2P_CLIENT: + cmd.port_role = WMI_PORT_P2P_CLIENT; + break; + case NL80211_IFTYPE_P2P_GO: + cmd.port_role = WMI_PORT_P2P_GO; + break; + /* what about monitor??? */ + default: + wil_err(wil, "unsupported iftype: %d\n", iftype); + return -EINVAL; + } + + reply.evt.status = WMI_FW_STATUS_FAILURE; + + rc = wmi_call(wil, WMI_PORT_ALLOCATE_CMDID, mid, + &cmd, sizeof(cmd), + WMI_PORT_ALLOCATED_EVENTID, &reply, + sizeof(reply), 300); + if (rc) { + wil_err(wil, "failed to allocate port, status %d\n", rc); + return rc; + } + if (reply.evt.status != WMI_FW_STATUS_SUCCESS) { + wil_err(wil, "WMI_PORT_ALLOCATE returned status %d\n", + reply.evt.status); + return -EINVAL; + } + + return 0; +} + +int wmi_port_delete(struct wil6210_priv *wil, u8 mid) +{ + int rc; + struct wmi_port_delete_cmd cmd = { + .mid = mid, + }; + struct { + struct wmi_cmd_hdr wmi; + struct wmi_port_deleted_event evt; + } __packed reply; + + wil_dbg_misc(wil, "port delete, mid %d\n", mid); + + reply.evt.status = WMI_FW_STATUS_FAILURE; + + rc = wmi_call(wil, WMI_PORT_DELETE_CMDID, mid, + &cmd, sizeof(cmd), + WMI_PORT_DELETED_EVENTID, &reply, + sizeof(reply), 2000); + if (rc) { + wil_err(wil, "failed to delete port, status %d\n", rc); + return rc; + } + if (reply.evt.status != WMI_FW_STATUS_SUCCESS) { + wil_err(wil, "WMI_PORT_DELETE returned status %d\n", + reply.evt.status); + return -EINVAL; + } + + return 0; +} + static bool wmi_evt_call_handler(struct wil6210_vif *vif, int id, void *d, int len) { @@ -2391,7 +2480,7 @@ static void wmi_event_handle(struct wil6210_priv *wil, struct wil6210_mbox_hdr *hdr) { u16 len = le16_to_cpu(hdr->len); - struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev); + struct wil6210_vif *vif; if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) && (len >= sizeof(struct wmi_cmd_hdr))) { @@ -2404,6 +2493,20 @@ static void wmi_event_handle(struct wil6210_priv *wil, eventid2name(id), id, wil->reply_id, wil->reply_mid); + if (mid == MID_BROADCAST) + mid = 0; + if (mid >= wil->max_vifs) { + wil_dbg_wmi(wil, "invalid mid %d, event skipped\n", + mid); + return; + } + vif = wil->vifs[mid]; + if (!vif) { + wil_dbg_wmi(wil, "event for empty VIF(%d), skipped\n", + mid); + return; + } + /* check if someone waits for this event */ if (wil->reply_id && wil->reply_id == id && wil->reply_mid == mid) {